//
//  Bismillah ar-Rahmaan ar-Raheem
//
//  Easylogging++ v9.96.7
//  Single-header only, cross-platform logging library for C++ applications
//
//  Copyright (c) 2012-2018 Amrayn Web Services
//  Copyright (c) 2012-2018 @abumusamq
//
//  This library is released under the MIT Licence.
//  https://github.com/amrayn/easyloggingpp/blob/master/LICENSE
//
//  https://amrayn.com
//  http://muflihun.com
//

#ifndef EASYLOGGINGPP_H
#define EASYLOGGINGPP_H
// Compilers and C++0x/C++11 Evaluation
#if __cplusplus >= 201103L
#define ELPP_CXX11 1
#endif // __cplusplus >= 201103L
#if (defined(__GNUC__))
#define ELPP_COMPILER_GCC 1
#else
#define ELPP_COMPILER_GCC 0
#endif
#if ELPP_COMPILER_GCC
#define ELPP_GCC_VERSION                                                       \
  (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#if defined(__GXX_EXPERIMENTAL_CXX0X__)
#define ELPP_CXX0X 1
#endif
#endif
// Visual C++
#if defined(_MSC_VER)
#define ELPP_COMPILER_MSVC 1
#else
#define ELPP_COMPILER_MSVC 0
#endif
#define ELPP_CRT_DBG_WARNINGS ELPP_COMPILER_MSVC
#if ELPP_COMPILER_MSVC
#if (_MSC_VER == 1600)
#define ELPP_CXX0X 1
#elif (_MSC_VER >= 1700)
#define ELPP_CXX11 1
#endif
#endif
// Clang++
#if (defined(__clang__) && (__clang__ == 1))
#define ELPP_COMPILER_CLANG 1
#else
#define ELPP_COMPILER_CLANG 0
#endif
#if ELPP_COMPILER_CLANG
#if __has_include(<thread>)
#include <cstddef> // Make __GLIBCXX__ defined when using libstdc++
#if !defined(__GLIBCXX__) || __GLIBCXX__ >= 20150426
#define ELPP_CLANG_SUPPORTS_THREAD
#endif // !defined(__GLIBCXX__) || __GLIBCXX__ >= 20150426
#endif // __has_include(<thread>)
#endif
#if (defined(__MINGW32__) || defined(__MINGW64__))
#define ELPP_MINGW 1
#else
#define ELPP_MINGW 0
#endif
#if (defined(__CYGWIN__) && (__CYGWIN__ == 1))
#define ELPP_CYGWIN 1
#else
#define ELPP_CYGWIN 0
#endif
#if (defined(__INTEL_COMPILER))
#define ELPP_COMPILER_INTEL 1
#else
#define ELPP_COMPILER_INTEL 0
#endif
// Operating System Evaluation
// Windows
#if (defined(_WIN32) || defined(_WIN64))
#define ELPP_OS_WINDOWS 1
#else
#define ELPP_OS_WINDOWS 0
#endif
// Linux
#if (defined(__linux) || defined(__linux__))
#define ELPP_OS_LINUX 1
#else
#define ELPP_OS_LINUX 0
#endif
#if (defined(__APPLE__))
#define ELPP_OS_MAC 1
#else
#define ELPP_OS_MAC 0
#endif
#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__))
#define ELPP_OS_FREEBSD 1
#else
#define ELPP_OS_FREEBSD 0
#endif
#if (defined(__sun))
#define ELPP_OS_SOLARIS 1
#else
#define ELPP_OS_SOLARIS 0
#endif
#if (defined(_AIX))
#define ELPP_OS_AIX 1
#else
#define ELPP_OS_AIX 0
#endif
#if (defined(__NetBSD__))
#define ELPP_OS_NETBSD 1
#else
#define ELPP_OS_NETBSD 0
#endif
#if defined(__EMSCRIPTEN__)
#define ELPP_OS_EMSCRIPTEN 1
#else
#define ELPP_OS_EMSCRIPTEN 0
#endif
#if (defined(__QNX__) || defined(__QNXNTO__))
#define ELPP_OS_QNX 1
#else
#define ELPP_OS_QNX 0
#endif
// Unix
#if ((ELPP_OS_LINUX || ELPP_OS_MAC || ELPP_OS_FREEBSD || ELPP_OS_NETBSD ||     \
      ELPP_OS_SOLARIS || ELPP_OS_AIX || ELPP_OS_EMSCRIPTEN || ELPP_OS_QNX) &&  \
     (!ELPP_OS_WINDOWS))
#define ELPP_OS_UNIX 1
#else
#define ELPP_OS_UNIX 0
#endif
#if (defined(__ANDROID__))
#define ELPP_OS_ANDROID 1
#else
#define ELPP_OS_ANDROID 0
#endif
// Evaluating Cygwin as *nix OS
#if !ELPP_OS_UNIX && !ELPP_OS_WINDOWS && ELPP_CYGWIN
#undef ELPP_OS_UNIX
#undef ELPP_OS_LINUX
#define ELPP_OS_UNIX 1
#define ELPP_OS_LINUX 1
#endif //  !ELPP_OS_UNIX && !ELPP_OS_WINDOWS && ELPP_CYGWIN
#if !defined(ELPP_INTERNAL_DEBUGGING_OUT_INFO)
#define ELPP_INTERNAL_DEBUGGING_OUT_INFO std::cout
#endif // !defined(ELPP_INTERNAL_DEBUGGING_OUT)
#if !defined(ELPP_INTERNAL_DEBUGGING_OUT_ERROR)
#define ELPP_INTERNAL_DEBUGGING_OUT_ERROR std::cerr
#endif // !defined(ELPP_INTERNAL_DEBUGGING_OUT)
#if !defined(ELPP_INTERNAL_DEBUGGING_ENDL)
#define ELPP_INTERNAL_DEBUGGING_ENDL std::endl
#endif // !defined(ELPP_INTERNAL_DEBUGGING_OUT)
#if !defined(ELPP_INTERNAL_DEBUGGING_MSG)
#define ELPP_INTERNAL_DEBUGGING_MSG(msg) msg
#endif // !defined(ELPP_INTERNAL_DEBUGGING_OUT)
// Internal Assertions and errors
#if !defined(ELPP_DISABLE_ASSERT)
#if (defined(ELPP_DEBUG_ASSERT_FAILURE))
#define ELPP_ASSERT(expr, msg)                                                 \
  if (!(expr)) {                                                               \
    std::stringstream internalInfoStream;                                      \
    internalInfoStream << msg;                                                 \
    ELPP_INTERNAL_DEBUGGING_OUT_ERROR                                          \
        << "EASYLOGGING++ ASSERTION FAILED (LINE: " << __LINE__ << ") [" #expr \
        << "] WITH MESSAGE \""                                                 \
        << ELPP_INTERNAL_DEBUGGING_MSG(internalInfoStream.str()) << "\""       \
        << ELPP_INTERNAL_DEBUGGING_ENDL;                                       \
    base::utils::abort(                                                        \
        1, "ELPP Assertion failure, please define ELPP_DEBUG_ASSERT_FAILURE"); \
  }
#else
#define ELPP_ASSERT(expr, msg)                                                 \
  if (!(expr)) {                                                               \
    std::stringstream internalInfoStream;                                      \
    internalInfoStream << msg;                                                 \
    ELPP_INTERNAL_DEBUGGING_OUT_ERROR                                          \
        << "ASSERTION FAILURE FROM EASYLOGGING++ (LINE: " << __LINE__          \
        << ") [" #expr << "] WITH MESSAGE \""                                  \
        << ELPP_INTERNAL_DEBUGGING_MSG(internalInfoStream.str()) << "\""       \
        << ELPP_INTERNAL_DEBUGGING_ENDL;                                       \
  }
#endif // (defined(ELPP_DEBUG_ASSERT_FAILURE))
#else
#define ELPP_ASSERT(x, y)
#endif //(!defined(ELPP_DISABLE_ASSERT)
#if ELPP_COMPILER_MSVC
#define ELPP_INTERNAL_DEBUGGING_WRITE_PERROR                                   \
  {                                                                            \
    char buff[256];                                                            \
    strerror_s(buff, 256, errno);                                              \
    ELPP_INTERNAL_DEBUGGING_OUT_ERROR << ": " << buff << " [" << errno << "]"; \
  }                                                                            \
  (void)0
#else
#define ELPP_INTERNAL_DEBUGGING_WRITE_PERROR                                   \
  ELPP_INTERNAL_DEBUGGING_OUT_ERROR << ": " << strerror(errno) << " ["         \
                                    << errno << "]";                           \
  (void)0
#endif // ELPP_COMPILER_MSVC
#if defined(ELPP_DEBUG_ERRORS)
#if !defined(ELPP_INTERNAL_ERROR)
#define ELPP_INTERNAL_ERROR(msg, pe)                                           \
  {                                                                            \
    std::stringstream internalInfoStream;                                      \
    internalInfoStream << "<ERROR> " << msg;                                   \
    ELPP_INTERNAL_DEBUGGING_OUT_ERROR                                          \
        << "ERROR FROM EASYLOGGING++ (LINE: " << __LINE__ << ") "              \
        << ELPP_INTERNAL_DEBUGGING_MSG(internalInfoStream.str())               \
        << ELPP_INTERNAL_DEBUGGING_ENDL;                                       \
    if (pe) {                                                                  \
      ELPP_INTERNAL_DEBUGGING_OUT_ERROR << "    ";                             \
      ELPP_INTERNAL_DEBUGGING_WRITE_PERROR;                                    \
    }                                                                          \
  }                                                                            \
  (void)0
#endif
#else
#undef ELPP_INTERNAL_INFO
#define ELPP_INTERNAL_ERROR(msg, pe)
#endif // defined(ELPP_DEBUG_ERRORS)
#if (defined(ELPP_DEBUG_INFO))
#if !(defined(ELPP_INTERNAL_INFO_LEVEL))
#define ELPP_INTERNAL_INFO_LEVEL 9
#endif // !(defined(ELPP_INTERNAL_INFO_LEVEL))
#if !defined(ELPP_INTERNAL_INFO)
#define ELPP_INTERNAL_INFO(lvl, msg)                                           \
  {                                                                            \
    if (lvl <= ELPP_INTERNAL_INFO_LEVEL) {                                     \
      std::stringstream internalInfoStream;                                    \
      internalInfoStream << "<INFO> " << msg;                                  \
      ELPP_INTERNAL_DEBUGGING_OUT_INFO                                         \
          << ELPP_INTERNAL_DEBUGGING_MSG(internalInfoStream.str())             \
          << ELPP_INTERNAL_DEBUGGING_ENDL;                                     \
    }                                                                          \
  }
#endif
#else
#undef ELPP_INTERNAL_INFO
#define ELPP_INTERNAL_INFO(lvl, msg)
#endif // (defined(ELPP_DEBUG_INFO))
#if (defined(ELPP_FEATURE_ALL)) || (defined(ELPP_FEATURE_CRASH_LOG))
#if (ELPP_COMPILER_GCC && !ELPP_MINGW && !ELPP_CYGWIN && !ELPP_OS_ANDROID &&   \
     !ELPP_OS_EMSCRIPTEN && !ELPP_OS_QNX)
#define ELPP_STACKTRACE 1
#else
#if ELPP_COMPILER_MSVC
#pragma message("Stack trace not available for this compiler")
#else
#warning "Stack trace not available for this compiler";
#endif // ELPP_COMPILER_MSVC
#define ELPP_STACKTRACE 0
#endif // ELPP_COMPILER_GCC
#else
#define ELPP_STACKTRACE 0
#endif // (defined(ELPP_FEATURE_ALL)) || (defined(ELPP_FEATURE_CRASH_LOG))
// Miscellaneous macros
#define ELPP_UNUSED(x) (void)x
#if ELPP_OS_UNIX
// Log file permissions for unix-based systems
#define ELPP_LOG_PERMS                                                         \
  S_IRUSR | S_IWUSR | S_IXUSR | S_IWGRP | S_IRGRP | S_IXGRP | S_IWOTH | S_IXOTH
#endif // ELPP_OS_UNIX
#if defined(ELPP_AS_DLL) && ELPP_COMPILER_MSVC
#if defined(ELPP_EXPORT_SYMBOLS)
#define ELPP_EXPORT __declspec(dllexport)
#else
#define ELPP_EXPORT __declspec(dllimport)
#endif // defined(ELPP_EXPORT_SYMBOLS)
#else
#define ELPP_EXPORT
#endif // defined(ELPP_AS_DLL) && ELPP_COMPILER_MSVC
// Some special functions that are VC++ specific
#undef STRTOK
#undef STRERROR
#undef STRCAT
#undef STRCPY
#if ELPP_CRT_DBG_WARNINGS
#define STRTOK(a, b, c) strtok_s(a, b, c)
#define STRERROR(a, b, c) strerror_s(a, b, c)
#define STRCAT(a, b, len) strcat_s(a, len, b)
#define STRCPY(a, b, len) strcpy_s(a, len, b)
#else
#define STRTOK(a, b, c) strtok(a, b)
#define STRERROR(a, b, c) strerror(c)
#define STRCAT(a, b, len) strcat(a, b)
#define STRCPY(a, b, len) strcpy(a, b)
#endif
// Compiler specific support evaluations
#if (ELPP_MINGW && !defined(ELPP_FORCE_USE_STD_THREAD))
#define ELPP_USE_STD_THREADING 0
#else
#if ((ELPP_COMPILER_CLANG && defined(ELPP_CLANG_SUPPORTS_THREAD)) ||           \
     (!ELPP_COMPILER_CLANG && defined(ELPP_CXX11)) ||                          \
     defined(ELPP_FORCE_USE_STD_THREAD))
#define ELPP_USE_STD_THREADING 1
#else
#define ELPP_USE_STD_THREADING 0
#endif
#endif
#undef ELPP_FINAL
#if ELPP_COMPILER_INTEL || (ELPP_GCC_VERSION < 40702)
#define ELPP_FINAL
#else
#define ELPP_FINAL final
#endif // ELPP_COMPILER_INTEL || (ELPP_GCC_VERSION < 40702)
#if defined(ELPP_EXPERIMENTAL_ASYNC)
#define ELPP_ASYNC_LOGGING 1
#else
#define ELPP_ASYNC_LOGGING 0
#endif // defined(ELPP_EXPERIMENTAL_ASYNC)
#if defined(ELPP_THREAD_SAFE) || ELPP_ASYNC_LOGGING
#define ELPP_THREADING_ENABLED 1
#else
#define ELPP_THREADING_ENABLED 0
#endif // defined(ELPP_THREAD_SAFE) || ELPP_ASYNC_LOGGING
// Function macro ELPP_FUNC
#undef ELPP_FUNC
#if ELPP_COMPILER_MSVC // Visual C++
#define ELPP_FUNC __FUNCSIG__
#elif ELPP_COMPILER_GCC // GCC
#define ELPP_FUNC __PRETTY_FUNCTION__
#elif ELPP_COMPILER_INTEL // Intel C++
#define ELPP_FUNC __PRETTY_FUNCTION__
#elif ELPP_COMPILER_CLANG // Clang++
#define ELPP_FUNC __PRETTY_FUNCTION__
#else
#if defined(__func__)
#define ELPP_FUNC __func__
#else
#define ELPP_FUNC ""
#endif // defined(__func__)
#endif // defined(_MSC_VER)
#undef ELPP_VARIADIC_TEMPLATES_SUPPORTED
// Keep following line commented until features are fixed
#define ELPP_VARIADIC_TEMPLATES_SUPPORTED                                      \
  (ELPP_COMPILER_GCC || ELPP_COMPILER_CLANG || ELPP_COMPILER_INTEL ||          \
   (ELPP_COMPILER_MSVC && _MSC_VER >= 1800))
// Logging Enable/Disable macros
#if defined(ELPP_DISABLE_LOGS)
#define ELPP_LOGGING_ENABLED 0
#else
#define ELPP_LOGGING_ENABLED 1
#endif
#if (!defined(ELPP_DISABLE_DEBUG_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_DEBUG_LOG 1
#else
#define ELPP_DEBUG_LOG 0
#endif // (!defined(ELPP_DISABLE_DEBUG_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!defined(ELPP_DISABLE_INFO_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_INFO_LOG 1
#else
#define ELPP_INFO_LOG 0
#endif // (!defined(ELPP_DISABLE_INFO_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!defined(ELPP_DISABLE_WARNING_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_WARNING_LOG 1
#else
#define ELPP_WARNING_LOG 0
#endif // (!defined(ELPP_DISABLE_WARNING_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!defined(ELPP_DISABLE_ERROR_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_ERROR_LOG 1
#else
#define ELPP_ERROR_LOG 0
#endif // (!defined(ELPP_DISABLE_ERROR_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!defined(ELPP_DISABLE_FATAL_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_FATAL_LOG 1
#else
#define ELPP_FATAL_LOG 0
#endif // (!defined(ELPP_DISABLE_FATAL_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!defined(ELPP_DISABLE_TRACE_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_TRACE_LOG 1
#else
#define ELPP_TRACE_LOG 0
#endif // (!defined(ELPP_DISABLE_TRACE_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!defined(ELPP_DISABLE_VERBOSE_LOGS) && (ELPP_LOGGING_ENABLED))
#define ELPP_VERBOSE_LOG 1
#else
#define ELPP_VERBOSE_LOG 0
#endif // (!defined(ELPP_DISABLE_VERBOSE_LOGS) && (ELPP_LOGGING_ENABLED))
#if (!(ELPP_CXX0X || ELPP_CXX11))
#error "C++0x (or higher) support not detected! (Is `-std=c++11' missing?)"
#endif // (!(ELPP_CXX0X || ELPP_CXX11))
// Headers
#if defined(ELPP_SYSLOG)
#include <syslog.h>
#endif // defined(ELPP_SYSLOG)
#include <cctype>
#include <cerrno>
#include <csignal>
#include <cstdarg>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <cwchar>
#if defined(ELPP_UNICODE)
#include <locale>
#if ELPP_OS_WINDOWS
#include <codecvt>
#endif // ELPP_OS_WINDOWS
#endif // defined(ELPP_UNICODE)
#ifdef HAVE_EXECINFO
#include <cxxabi.h>
#include <execinfo.h>
#endif // ENABLE_EXECINFO
#if ELPP_OS_ANDROID
#include <sys/system_properties.h>
#endif // ELPP_OS_ANDROID
#if ELPP_OS_UNIX
#include <sys/stat.h>
#include <sys/time.h>
#elif ELPP_OS_WINDOWS
#include <direct.h>
#include <windows.h>
#if defined(WIN32_LEAN_AND_MEAN)
#if defined(ELPP_WINSOCK2)
#include <winsock2.h>
#else
#include <winsock.h>
#endif // defined(ELPP_WINSOCK2)
#endif // defined(WIN32_LEAN_AND_MEAN)
#endif // ELPP_OS_UNIX
#include <algorithm>
#include <fstream>
#include <functional>
#include <iostream>
#include <map>
#include <memory>
#include <sstream>
#include <string>
#include <type_traits>
#include <unordered_map>
#include <utility>
#include <vector>
#if ELPP_THREADING_ENABLED
#if ELPP_USE_STD_THREADING
#include <mutex>
#include <thread>
#else
#if ELPP_OS_UNIX
#include <pthread.h>
#endif // ELPP_OS_UNIX
#endif // ELPP_USE_STD_THREADING
#endif // ELPP_THREADING_ENABLED
#if ELPP_ASYNC_LOGGING
#if defined(ELPP_NO_SLEEP_FOR)
#include <unistd.h>
#endif // defined(ELPP_NO_SLEEP_FOR)
#include <condition_variable>
#include <queue>
#include <thread>
#endif // ELPP_ASYNC_LOGGING
#if defined(ELPP_STL_LOGGING)
// For logging STL based templates
#include <bitset>
#include <deque>
#include <list>
#include <queue>
#include <set>
#include <stack>
#if defined(ELPP_LOG_STD_ARRAY)
#include <array>
#endif // defined(ELPP_LOG_STD_ARRAY)
#if defined(ELPP_LOG_UNORDERED_SET)
#include <unordered_set>
#endif // defined(ELPP_UNORDERED_SET)
#endif // defined(ELPP_STL_LOGGING)
#if defined(ELPP_QT_LOGGING)
// For logging Qt based classes & templates
#include <QByteArray>
#include <QHash>
#include <QLinkedList>
#include <QList>
#include <QMap>
#include <QMultiHash>
#include <QPair>
#include <QQueue>
#include <QSet>
#include <QStack>
#include <QString>
#include <QVector>
#endif // defined(ELPP_QT_LOGGING)
#if defined(ELPP_BOOST_LOGGING)
// For logging boost based classes & templates
#include <boost/container/deque.hpp>
#include <boost/container/flat_map.hpp>
#include <boost/container/flat_set.hpp>
#include <boost/container/list.hpp>
#include <boost/container/map.hpp>
#include <boost/container/set.hpp>
#include <boost/container/stable_vector.hpp>
#include <boost/container/vector.hpp>
#endif // defined(ELPP_BOOST_LOGGING)
#if defined(ELPP_WXWIDGETS_LOGGING)
// For logging wxWidgets based classes & templates
#include <wx/vector.h>
#endif // defined(ELPP_WXWIDGETS_LOGGING)
#if defined(ELPP_UTC_DATETIME)
#define elpptime_r gmtime_r
#define elpptime_s gmtime_s
#define elpptime gmtime
#else
#define elpptime_r localtime_r
#define elpptime_s localtime_s
#define elpptime localtime
#endif // defined(ELPP_UTC_DATETIME)
// Forward declarations
namespace el {
class Logger;
class LogMessage;
class PerformanceTrackingData;
class Loggers;
class Helpers;
template <typename T> class Callback;
class LogDispatchCallback;
class PerformanceTrackingCallback;
class LoggerRegistrationCallback;
class LogDispatchData;
namespace base {
class Storage;
class RegisteredLoggers;
class PerformanceTracker;
class MessageBuilder;
class Writer;
class PErrorWriter;
class LogDispatcher;
class DefaultLogBuilder;
class DefaultLogDispatchCallback;
#if ELPP_ASYNC_LOGGING
class AsyncLogDispatchCallback;
class AsyncDispatchWorker;
#endif // ELPP_ASYNC_LOGGING
class DefaultPerformanceTrackingCallback;
} // namespace base
} // namespace el
/// @brief Easylogging++ entry namespace
namespace el {
/// @brief Namespace containing base/internal functionality used by
/// Easylogging++
namespace base {
/// @brief Data types used by Easylogging++
namespace type {
#undef ELPP_LITERAL
#undef ELPP_STRLEN
#undef ELPP_COUT
#if defined(ELPP_UNICODE)
#define ELPP_LITERAL(txt) L##txt
#define ELPP_STRLEN wcslen
#if defined ELPP_CUSTOM_COUT
#define ELPP_COUT ELPP_CUSTOM_COUT
#else
#define ELPP_COUT std::wcout
#endif // defined ELPP_CUSTOM_COUT
typedef wchar_t char_t;
typedef std::wstring string_t;
typedef std::wstringstream stringstream_t;
typedef std::wfstream fstream_t;
typedef std::wostream ostream_t;
#else
#define ELPP_LITERAL(txt) txt
#define ELPP_STRLEN strlen
#if defined ELPP_CUSTOM_COUT
#define ELPP_COUT ELPP_CUSTOM_COUT
#else
#define ELPP_COUT std::cout
#endif // defined ELPP_CUSTOM_COUT
typedef char char_t;
typedef std::string string_t;
typedef std::stringstream stringstream_t;
typedef std::fstream fstream_t;
typedef std::ostream ostream_t;
#endif // defined(ELPP_UNICODE)
#if defined(ELPP_CUSTOM_COUT_LINE)
#define ELPP_COUT_LINE(logLine) ELPP_CUSTOM_COUT_LINE(logLine)
#else
#define ELPP_COUT_LINE(logLine) logLine << std::flush
#endif // defined(ELPP_CUSTOM_COUT_LINE)
typedef unsigned int EnumType;
typedef unsigned short VerboseLevel;
typedef unsigned long int LineNumber;
typedef std::shared_ptr<base::Storage> StoragePointer;
typedef std::shared_ptr<LogDispatchCallback> LogDispatchCallbackPtr;
typedef std::shared_ptr<PerformanceTrackingCallback>
    PerformanceTrackingCallbackPtr;
typedef std::shared_ptr<LoggerRegistrationCallback>
    LoggerRegistrationCallbackPtr;
typedef std::unique_ptr<el::base::PerformanceTracker> PerformanceTrackerPtr;
} // namespace type
/// @brief Internal helper class that prevent copy constructor for class
///
/// @detail When using this class simply inherit it privately
class NoCopy {
protected:
  NoCopy(void) {}

private:
  NoCopy(const NoCopy &);
  NoCopy &operator=(const NoCopy &);
};
/// @brief Internal helper class that makes all default constructors private.
///
/// @detail This prevents initializing class making it static unless an explicit
/// constructor is declared. When using this class simply inherit it privately
class StaticClass {
private:
  StaticClass(void);
  StaticClass(const StaticClass &);
  StaticClass &operator=(const StaticClass &);
};
} // namespace base
/// @brief Represents enumeration for severity level used to determine level of
/// logging
///
/// @detail With Easylogging++, developers may disable or enable any level
/// regardless of what the severity is. Or they can choose to log using
/// hierarchical logging flag
enum class Level : base::type::EnumType {
  /// @brief Generic level that represents all the levels. Useful when setting
  /// global configuration for all levels
  Global = 1,
  /// @brief Information that can be useful to back-trace certain events -
  /// mostly useful than debug logs.
  Trace = 2,
  /// @brief Informational events most useful for developers to debug
  /// application
  Debug = 4,
  /// @brief Severe error information that will presumably abort application
  Fatal = 8,
  /// @brief Information representing errors in application but application will
  /// keep running
  Error = 16,
  /// @brief Useful when application has potentially harmful situations
  Warning = 32,
  /// @brief Information that can be highly useful and vary with verbose logging
  /// level.
  Verbose = 64,
  /// @brief Mainly useful to represent current progress of application
  Info = 128,
  /// @brief Represents unknown level
  Unknown = 1010
};
} // namespace el
namespace std {
template <> struct hash<el::Level> {
public:
  std::size_t operator()(const el::Level &l) const {
    return hash<el::base::type::EnumType>{}(
        static_cast<el::base::type::EnumType>(l));
  }
};
} // namespace std
namespace el {
/// @brief Static class that contains helper functions for el::Level
class LevelHelper : base::StaticClass {
public:
  /// @brief Represents minimum valid level. Useful when iterating through enum.
  static const base::type::EnumType kMinValid =
      static_cast<base::type::EnumType>(Level::Trace);
  /// @brief Represents maximum valid level. This is used internally and you
  /// should not need it.
  static const base::type::EnumType kMaxValid =
      static_cast<base::type::EnumType>(Level::Info);
  /// @brief Casts level to int, useful for iterating through enum.
  static base::type::EnumType castToInt(Level level) {
    return static_cast<base::type::EnumType>(level);
  }
  /// @brief Casts int(ushort) to level, useful for iterating through enum.
  static Level castFromInt(base::type::EnumType l) {
    return static_cast<Level>(l);
  }
  /// @brief Converts level to associated const char*
  /// @return Upper case string based level.
  static const char *convertToString(Level level);
  /// @brief Converts from levelStr to Level
  /// @param levelStr Upper case string based level.
  ///        Lower case is also valid but providing upper case is recommended.
  static Level convertFromString(const char *levelStr);
  /// @brief Applies specified function to each level starting from startIndex
  /// @param startIndex initial value to start the iteration from. This is
  /// passed as pointer and
  ///        is left-shifted so this can be used inside function (fn) to
  ///        represent current level.
  /// @param fn function to apply with each level. This bool represent whether
  /// or not to stop iterating through levels.
  static void forEachLevel(base::type::EnumType *startIndex,
                           const std::function<bool(void)> &fn);
};
/// @brief Represents enumeration of ConfigurationType used to configure or
/// access certain aspect of logging
enum class ConfigurationType : base::type::EnumType {
  /// @brief Determines whether or not corresponding level and logger of logging
  /// is enabled
  /// You may disable all logs by using el::Level::Global
  Enabled = 1,
  /// @brief Whether or not to write corresponding log to log file
  ToFile = 2,
  /// @brief Whether or not to write corresponding level and logger log to
  /// standard output.
  /// By standard output meaning termnal, command prompt etc
  ToStandardOutput = 4,
  /// @brief Determines format of logging corresponding level and logger.
  Format = 8,
  /// @brief Determines log file (full path) to write logs to for corresponding
  /// level and logger
  Filename = 16,
  /// @brief Specifies precision of the subsecond part. It should be within
  /// range (1-6).
  SubsecondPrecision = 32,
  /// @brief Alias of SubsecondPrecision (for backward compatibility)
  MillisecondsWidth = SubsecondPrecision,
  /// @brief Determines whether or not performance tracking is enabled.
  ///
  /// @detail This does not depend on logger or level. Performance tracking
  /// always uses 'performance' logger
  PerformanceTracking = 64,
  /// @brief Specifies log file max size.
  ///
  /// @detail If file size of corresponding log file (for corresponding level)
  /// is >= specified size, log file will
  /// be truncated and re-initiated.
  MaxLogFileSize = 128,
  /// @brief Specifies number of log entries to hold until we flush pending log
  /// data
  LogFlushThreshold = 256,
  /// @brief Represents unknown configuration
  Unknown = 1010
};
/// @brief Static class that contains helper functions for el::ConfigurationType
class ConfigurationTypeHelper : base::StaticClass {
public:
  /// @brief Represents minimum valid configuration type. Useful when iterating
  /// through enum.
  static const base::type::EnumType kMinValid =
      static_cast<base::type::EnumType>(ConfigurationType::Enabled);
  /// @brief Represents maximum valid configuration type. This is used
  /// internally and you should not need it.
  static const base::type::EnumType kMaxValid =
      static_cast<base::type::EnumType>(ConfigurationType::MaxLogFileSize);
  /// @brief Casts configuration type to int, useful for iterating through enum.
  static base::type::EnumType castToInt(ConfigurationType configurationType) {
    return static_cast<base::type::EnumType>(configurationType);
  }
  /// @brief Casts int(ushort) to configuration type, useful for iterating
  /// through enum.
  static ConfigurationType castFromInt(base::type::EnumType c) {
    return static_cast<ConfigurationType>(c);
  }
  /// @brief Converts configuration type to associated const char*
  /// @returns Upper case string based configuration type.
  static const char *convertToString(ConfigurationType configurationType);
  /// @brief Converts from configStr to ConfigurationType
  /// @param configStr Upper case string based configuration type.
  ///        Lower case is also valid but providing upper case is recommended.
  static ConfigurationType convertFromString(const char *configStr);
  /// @brief Applies specified function to each configuration type starting from
  /// startIndex
  /// @param startIndex initial value to start the iteration from. This is
  /// passed by pointer and is left-shifted
  ///        so this can be used inside function (fn) to represent current
  ///        configuration type.
  /// @param fn function to apply with each configuration type.
  ///        This bool represent whether or not to stop iterating through
  ///        configurations.
  static inline void forEachConfigType(base::type::EnumType *startIndex,
                                       const std::function<bool(void)> &fn);
};
/// @brief Flags used while writing logs. This flags are set by user
enum class LoggingFlag : base::type::EnumType {
  /// @brief Makes sure we have new line for each container log entry
  NewLineForContainer = 1,
  /// @brief Makes sure if -vmodule is used and does not specifies a module,
  /// then verbose
  /// logging is allowed via that module.
  AllowVerboseIfModuleNotSpecified = 2,
  /// @brief When handling crashes by default, detailed crash reason will be
  /// logged as well
  LogDetailedCrashReason = 4,
  /// @brief Allows to disable application abortion when logged using FATAL
  /// level
  DisableApplicationAbortOnFatalLog = 8,
  /// @brief Flushes log with every log-entry (performance sensitive) - Disabled
  /// by default
  ImmediateFlush = 16,
  /// @brief Enables strict file rolling
  StrictLogFileSizeCheck = 32,
  /// @brief Make terminal output colorful for supported terminals
  ColoredTerminalOutput = 64,
  /// @brief Supports use of multiple logging in same macro, e.g, CLOG(INFO,
  /// "default", "network")
  MultiLoggerSupport = 128,
  /// @brief Disables comparing performance tracker's checkpoints
  DisablePerformanceTrackingCheckpointComparison = 256,
  /// @brief Disable VModules
  DisableVModules = 512,
  /// @brief Disable VModules extensions
  DisableVModulesExtensions = 1024,
  /// @brief Enables hierarchical logging
  HierarchicalLogging = 2048,
  /// @brief Creates logger automatically when not available
  CreateLoggerAutomatically = 4096,
  /// @brief Adds spaces b/w logs that separated by left-shift operator
  AutoSpacing = 8192,
  /// @brief Preserves time format and does not convert it to sec, hour etc
  /// (performance tracking only)
  FixedTimeFormat = 16384,
  // @brief Ignore SIGINT or crash
  IgnoreSigInt = 32768,
};
namespace base {
/// @brief Namespace containing constants used internally.
namespace consts {
static const char kFormatSpecifierCharValue = 'v';
static const char kFormatSpecifierChar = '%';
static const unsigned int kMaxLogPerCounter = 100000;
static const unsigned int kMaxLogPerContainer = 100;
static const unsigned int kDefaultSubsecondPrecision = 3;

#ifdef ELPP_DEFAULT_LOGGER
static const char *kDefaultLoggerId = ELPP_DEFAULT_LOGGER;
#else
static const char *kDefaultLoggerId = "default";
#endif

#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING)
#ifdef ELPP_DEFAULT_PERFORMANCE_LOGGER
static const char *kPerformanceLoggerId = ELPP_DEFAULT_PERFORMANCE_LOGGER;
#else
static const char *kPerformanceLoggerId = "performance";
#endif // ELPP_DEFAULT_PERFORMANCE_LOGGER
#endif

#if defined(ELPP_SYSLOG)
static const char *kSysLogLoggerId = "syslog";
#endif // defined(ELPP_SYSLOG)

#if ELPP_OS_WINDOWS
static const char *kFilePathSeparator = "\\";
#else
static const char *kFilePathSeparator = "/";
#endif // ELPP_OS_WINDOWS

static const std::size_t kSourceFilenameMaxLength = 100;
static const std::size_t kSourceLineMaxLength = 10;
static const Level kPerformanceTrackerDefaultLevel = Level::Info;
const struct {
  double value;
  const base::type::char_t *unit;
} kTimeFormats[] = {
    {1000.0f, ELPP_LITERAL("us")},    {1000.0f, ELPP_LITERAL("ms")},
    {60.0f, ELPP_LITERAL("seconds")}, {60.0f, ELPP_LITERAL("minutes")},
    {24.0f, ELPP_LITERAL("hours")},   {7.0f, ELPP_LITERAL("days")}};
static const int kTimeFormatsCount =
    sizeof(kTimeFormats) / sizeof(kTimeFormats[0]);
const struct {
  int numb;
  const char *name;
  const char *brief;
  const char *detail;
} kCrashSignals[] = {
    // NOTE: Do not re-order, if you do please check CrashHandler(bool)
    // constructor and CrashHandler::setHandler(..)
    {SIGABRT, "SIGABRT", "Abnormal termination",
     "Program was abnormally terminated."},
    {SIGFPE, "SIGFPE", "Erroneous arithmetic operation",
     "Arithmetic operation issue such as division by zero or operation "
     "resulting in overflow."},
    {SIGILL, "SIGILL", "Illegal instruction",
     "Generally due to a corruption in the code or to an attempt to execute "
     "data."},
    {SIGSEGV, "SIGSEGV", "Invalid access to memory",
     "Program is trying to read an invalid (unallocated, deleted or corrupted) "
     "or inaccessible memory."},
    {SIGINT, "SIGINT", "Interactive attention signal",
     "Interruption generated (generally) by user or operating system."},
};
static const int kCrashSignalsCount =
    sizeof(kCrashSignals) / sizeof(kCrashSignals[0]);
} // namespace consts
} // namespace base
typedef std::function<void(const char *, std::size_t)> PreRollOutCallback;
namespace base {
static inline void defaultPreRollOutCallback(const char *, std::size_t) {}
/// @brief Enum to represent timestamp unit
enum class TimestampUnit : base::type::EnumType {
  Microsecond = 0,
  Millisecond = 1,
  Second = 2,
  Minute = 3,
  Hour = 4,
  Day = 5
};
/// @brief Format flags used to determine specifiers that are active for
/// performance improvements.
enum class FormatFlags : base::type::EnumType {
  DateTime = 1 << 1,
  LoggerId = 1 << 2,
  File = 1 << 3,
  Line = 1 << 4,
  Location = 1 << 5,
  Function = 1 << 6,
  User = 1 << 7,
  Host = 1 << 8,
  LogMessage = 1 << 9,
  VerboseLevel = 1 << 10,
  AppName = 1 << 11,
  ThreadId = 1 << 12,
  Level = 1 << 13,
  FileBase = 1 << 14,
  LevelShort = 1 << 15
};
/// @brief A subsecond precision class containing actual width and offset of the
/// subsecond part
class SubsecondPrecision {
public:
  SubsecondPrecision(void) { init(base::consts::kDefaultSubsecondPrecision); }
  explicit SubsecondPrecision(int width) { init(width); }
  bool operator==(const SubsecondPrecision &ssPrec) {
    return m_width == ssPrec.m_width && m_offset == ssPrec.m_offset;
  }
  int m_width;
  unsigned int m_offset;

private:
  void init(int width);
};
/// @brief Type alias of SubsecondPrecision
typedef SubsecondPrecision MillisecondsWidth;
/// @brief Namespace containing utility functions/static classes used internally
namespace utils {
/// @brief Deletes memory safely and points to null
template <typename T>
static typename std::enable_if<std::is_pointer<T *>::value, void>::type
safeDelete(T *&pointer) {
  if (pointer == nullptr)
    return;
  delete pointer;
  pointer = nullptr;
}
/// @brief Bitwise operations for C++11 strong enum class. This casts e into
/// Flag_T and returns value after bitwise operation Use these function as
/// <pre>flag = bitwise::Or<MyEnum>(MyEnum::val1, flag);</pre>
namespace bitwise {
template <typename Enum>
static inline base::type::EnumType And(Enum e, base::type::EnumType flag) {
  return static_cast<base::type::EnumType>(flag) &
         static_cast<base::type::EnumType>(e);
}
template <typename Enum>
static inline base::type::EnumType Not(Enum e, base::type::EnumType flag) {
  return static_cast<base::type::EnumType>(flag) &
         ~(static_cast<base::type::EnumType>(e));
}
template <typename Enum>
static inline base::type::EnumType Or(Enum e, base::type::EnumType flag) {
  return static_cast<base::type::EnumType>(flag) |
         static_cast<base::type::EnumType>(e);
}
} // namespace bitwise
template <typename Enum>
static inline void addFlag(Enum e, base::type::EnumType *flag) {
  *flag = base::utils::bitwise::Or<Enum>(e, *flag);
}
template <typename Enum>
static inline void removeFlag(Enum e, base::type::EnumType *flag) {
  *flag = base::utils::bitwise::Not<Enum>(e, *flag);
}
template <typename Enum>
static inline bool hasFlag(Enum e, base::type::EnumType flag) {
  return base::utils::bitwise::And<Enum>(e, flag) > 0x0;
}
} // namespace utils
namespace threading {
#if ELPP_THREADING_ENABLED
#if !ELPP_USE_STD_THREADING
namespace internal {
/// @brief A mutex wrapper for compiler that dont yet support
/// std::recursive_mutex
class Mutex : base::NoCopy {
public:
  Mutex(void) {
#if ELPP_OS_UNIX
    pthread_mutexattr_t attr;
    pthread_mutexattr_init(&attr);
    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
    pthread_mutex_init(&m_underlyingMutex, &attr);
    pthread_mutexattr_destroy(&attr);
#elif ELPP_OS_WINDOWS
    InitializeCriticalSection(&m_underlyingMutex);
#endif // ELPP_OS_UNIX
  }

  virtual ~Mutex(void) {
#if ELPP_OS_UNIX
    pthread_mutex_destroy(&m_underlyingMutex);
#elif ELPP_OS_WINDOWS
    DeleteCriticalSection(&m_underlyingMutex);
#endif // ELPP_OS_UNIX
  }

  inline void lock(void) {
#if ELPP_OS_UNIX
    pthread_mutex_lock(&m_underlyingMutex);
#elif ELPP_OS_WINDOWS
    EnterCriticalSection(&m_underlyingMutex);
#endif // ELPP_OS_UNIX
  }

  inline bool try_lock(void) {
#if ELPP_OS_UNIX
    return (pthread_mutex_trylock(&m_underlyingMutex) == 0);
#elif ELPP_OS_WINDOWS
    return TryEnterCriticalSection(&m_underlyingMutex);
#endif // ELPP_OS_UNIX
  }

  inline void unlock(void) {
#if ELPP_OS_UNIX
    pthread_mutex_unlock(&m_underlyingMutex);
#elif ELPP_OS_WINDOWS
    LeaveCriticalSection(&m_underlyingMutex);
#endif // ELPP_OS_UNIX
  }

private:
#if ELPP_OS_UNIX
  pthread_mutex_t m_underlyingMutex;
#elif ELPP_OS_WINDOWS
  CRITICAL_SECTION m_underlyingMutex;
#endif // ELPP_OS_UNIX
};
/// @brief Scoped lock for compiler that dont yet support std::lock_guard
template <typename M> class ScopedLock : base::NoCopy {
public:
  explicit ScopedLock(M &mutex) {
    m_mutex = &mutex;
    m_mutex->lock();
  }

  virtual ~ScopedLock(void) { m_mutex->unlock(); }

private:
  M *m_mutex;
  ScopedLock(void);
};
} // namespace internal
typedef base::threading::internal::Mutex Mutex;
typedef base::threading::internal::ScopedLock<base::threading::Mutex>
    ScopedLock;
#else
typedef std::recursive_mutex Mutex;
typedef std::lock_guard<base::threading::Mutex> ScopedLock;
#endif // !ELPP_USE_STD_THREADING
#else
namespace internal {
/// @brief Mutex wrapper used when multi-threading is disabled.
class NoMutex : base::NoCopy {
public:
  NoMutex(void) {}
  inline void lock(void) {}
  inline bool try_lock(void) { return true; }
  inline void unlock(void) {}
};
/// @brief Lock guard wrapper used when multi-threading is disabled.
template <typename Mutex> class NoScopedLock : base::NoCopy {
public:
  explicit NoScopedLock(Mutex &) {}
  virtual ~NoScopedLock(void) {}

private:
  NoScopedLock(void);
};
} // namespace internal
typedef base::threading::internal::NoMutex Mutex;
typedef base::threading::internal::NoScopedLock<base::threading::Mutex>
    ScopedLock;
#endif // ELPP_THREADING_ENABLED
/// @brief Base of thread safe class, this class is inheritable-only
class ThreadSafe {
public:
  virtual inline void acquireLock(void) ELPP_FINAL { m_mutex.lock(); }
  virtual inline void releaseLock(void) ELPP_FINAL { m_mutex.unlock(); }
  virtual inline base::threading::Mutex &lock(void) ELPP_FINAL {
    return m_mutex;
  }

protected:
  ThreadSafe(void) {}
  virtual ~ThreadSafe(void) {}

private:
  base::threading::Mutex m_mutex;
};

#if ELPP_THREADING_ENABLED
#if !ELPP_USE_STD_THREADING
/// @brief Gets ID of currently running threading in windows systems. On unix,
/// nothing is returned.
static std::string getCurrentThreadId(void) {
  std::stringstream ss;
#if (ELPP_OS_WINDOWS)
  ss << GetCurrentThreadId();
#endif // (ELPP_OS_WINDOWS)
  return ss.str();
}
#else
/// @brief Gets ID of currently running threading using
/// std::this_thread::get_id()
static std::string getCurrentThreadId(void) {
  std::stringstream ss;
  ss << std::this_thread::get_id();
  return ss.str();
}
#endif // !ELPP_USE_STD_THREADING
#else
static inline std::string getCurrentThreadId(void) { return std::string(); }
#endif // ELPP_THREADING_ENABLED
} // namespace threading
namespace utils {
class File : base::StaticClass {
public:
  /// @brief Creates new out file stream for specified filename.
  /// @return Pointer to newly created fstream or nullptr
  static base::type::fstream_t *newFileStream(const std::string &filename);

  /// @brief Gets size of file provided in stream
  static std::size_t getSizeOfFile(base::type::fstream_t *fs);

  /// @brief Determines whether or not provided path exist in current file
  /// system
  static bool pathExists(const char *path, bool considerFile = false);

  /// @brief Creates specified path on file system
  /// @param path Path to create.
  static bool createPath(const std::string &path);
  /// @brief Extracts path of filename with leading slash
  static std::string extractPathFromFilename(
      const std::string &fullPath,
      const char *separator = base::consts::kFilePathSeparator);
  /// @brief builds stripped filename and puts it in buff
  static void buildStrippedFilename(
      const char *filename, char buff[],
      std::size_t limit = base::consts::kSourceFilenameMaxLength);
  /// @brief builds base filename and puts it in buff
  static void
  buildBaseFilename(const std::string &fullPath, char buff[],
                    std::size_t limit = base::consts::kSourceFilenameMaxLength,
                    const char *separator = base::consts::kFilePathSeparator);
};
/// @brief String utilities helper class used internally. You should not use it.
class Str : base::StaticClass {
public:
  /// @brief Checks if character is digit. Dont use libc implementation of it to
  /// prevent locale issues.
  static inline bool isDigit(char c) { return c >= '0' && c <= '9'; }

  /// @brief Matches wildcards, '*' and '?' only supported.
  static bool wildCardMatch(const char *str, const char *pattern);

  static std::string &ltrim(std::string &str);
  static std::string &rtrim(std::string &str);
  static std::string &trim(std::string &str);

  /// @brief Determines whether or not str starts with specified string
  /// @param str String to check
  /// @param start String to check against
  /// @return Returns true if starts with specified string, false otherwise
  static bool startsWith(const std::string &str, const std::string &start);

  /// @brief Determines whether or not str ends with specified string
  /// @param str String to check
  /// @param end String to check against
  /// @return Returns true if ends with specified string, false otherwise
  static bool endsWith(const std::string &str, const std::string &end);

  /// @brief Replaces all instances of replaceWhat with 'replaceWith'. Original
  /// variable is changed for performance.
  /// @param [in,out] str String to replace from
  /// @param replaceWhat Character to replace
  /// @param replaceWith Character to replace with
  /// @return Modified version of str
  static std::string &replaceAll(std::string &str, char replaceWhat,
                                 char replaceWith);

  /// @brief Replaces all instances of 'replaceWhat' with 'replaceWith'. (String
  /// version) Replaces in place
  /// @param str String to replace from
  /// @param replaceWhat Character to replace
  /// @param replaceWith Character to replace with
  /// @return Modified (original) str
  static std::string &replaceAll(std::string &str,
                                 const std::string &replaceWhat,
                                 const std::string &replaceWith);

  static void replaceFirstWithEscape(base::type::string_t &str,
                                     const base::type::string_t &replaceWhat,
                                     const base::type::string_t &replaceWith);
#if defined(ELPP_UNICODE)
  static void replaceFirstWithEscape(base::type::string_t &str,
                                     const base::type::string_t &replaceWhat,
                                     const std::string &replaceWith);
#endif // defined(ELPP_UNICODE)
  /// @brief Converts string to uppercase
  /// @param str String to convert
  /// @return Uppercase string
  static std::string &toUpper(std::string &str);

  /// @brief Compares cstring equality - uses strcmp
  static bool cStringEq(const char *s1, const char *s2);

  /// @brief Compares cstring equality (case-insensitive) - uses toupper(char)
  /// Dont use strcasecmp because of CRT (VC++)
  static bool cStringCaseEq(const char *s1, const char *s2);

  /// @brief Returns true if c exist in str
  static bool contains(const char *str, char c);

  static char *convertAndAddToBuff(std::size_t n, int len, char *buf,
                                   const char *bufLim, bool zeroPadded = true);
  static char *addToBuff(const char *str, char *buf, const char *bufLim);
  static char *clearBuff(char buff[], std::size_t lim);

  /// @brief Converts wchar* to char*
  ///        NOTE: Need to free return value after use!
  static char *wcharPtrToCharPtr(const wchar_t *line);
};
/// @brief Operating System helper static class used internally. You should not
/// use it.
class OS : base::StaticClass {
public:
#if ELPP_OS_WINDOWS
  /// @brief Gets environment variables for Windows based OS.
  ///        We are not using <code>getenv(const char*)</code> because of CRT
  ///        deprecation
  /// @param varname Variable name to get environment variable value for
  /// @return If variable exist the value of it otherwise nullptr
  static const char *getWindowsEnvironmentVariable(const char *varname);
#endif // ELPP_OS_WINDOWS
#if ELPP_OS_ANDROID
  /// @brief Reads android property value
  static std::string getProperty(const char *prop);

  /// @brief Reads android device name
  static std::string getDeviceName(void);
#endif // ELPP_OS_ANDROID

  /// @brief Runs command on terminal and returns the output.
  ///
  /// @detail This is applicable only on unix based systems, for all other OS,
  /// an empty string is returned.
  /// @param command Bash command
  /// @return Result of bash output or empty string if no result found.
  static const std::string getBashOutput(const char *command);

  /// @brief Gets environment variable. This is cross-platform and CRT safe (for
  /// VC++)
  /// @param variableName Environment variable name
  /// @param defaultVal If no environment variable or value found the value to
  /// return by default
  /// @param alternativeBashCommand If environment variable not found what would
  /// be alternative bash command
  ///        in order to look for value user is looking for. E.g, for 'user'
  ///        alternative command will 'whoami'
  static std::string
  getEnvironmentVariable(const char *variableName, const char *defaultVal,
                         const char *alternativeBashCommand = nullptr);
  /// @brief Gets current username.
  static std::string currentUser(void);

  /// @brief Gets current host name or computer name.
  ///
  /// @detail For android systems this is device name with its manufacturer and
  /// model separated by hyphen
  static std::string currentHost(void);
  /// @brief Whether or not terminal supports colors
  static bool termSupportsColor(void);
};
/// @brief Contains utilities for cross-platform date/time. This class make use
/// of el::base::utils::Str
class DateTime : base::StaticClass {
public:
  /// @brief Cross platform gettimeofday for Windows and unix platform. This can
  /// be used to determine current microsecond.
  ///
  /// @detail For unix system it uses gettimeofday(timeval*, timezone*) and for
  /// Windows, a separate implementation is provided
  /// @param [in,out] tv Pointer that gets updated
  static void gettimeofday(struct timeval *tv);

  /// @brief Gets current date and time with a subsecond part.
  /// @param format User provided date/time format
  /// @param ssPrec A pointer to base::SubsecondPrecision from configuration
  /// (non-null)
  /// @returns string based date time in specified format.
  static std::string getDateTime(const char *format,
                                 const base::SubsecondPrecision *ssPrec);

  /// @brief Converts timeval (struct from ctime) to string using specified
  /// format and subsecond precision
  static std::string
  timevalToString(struct timeval tval, const char *format,
                  const el::base::SubsecondPrecision *ssPrec);

  /// @brief Formats time to get unit accordingly, units like second if > 1000
  /// or minutes if > 60000 etc
  static base::type::string_t formatTime(unsigned long long time,
                                         base::TimestampUnit timestampUnit);

  /// @brief Gets time difference in milli/micro second depending on
  /// timestampUnit
  static unsigned long long
  getTimeDifference(const struct timeval &endTime,
                    const struct timeval &startTime,
                    base::TimestampUnit timestampUnit);

  static struct ::tm *buildTimeInfo(struct timeval *currTime,
                                    struct ::tm *timeInfo);

private:
  static char *parseFormat(char *buf, std::size_t bufSz, const char *format,
                           const struct tm *tInfo, std::size_t msec,
                           const base::SubsecondPrecision *ssPrec);
};
/// @brief Command line arguments for application if specified using
/// el::Helpers::setArgs(..) or START_EASYLOGGINGPP(..)
class CommandLineArgs {
public:
  CommandLineArgs(void) { setArgs(0, static_cast<char **>(nullptr)); }
  CommandLineArgs(int argc, const char **argv) { setArgs(argc, argv); }
  CommandLineArgs(int argc, char **argv) { setArgs(argc, argv); }
  virtual ~CommandLineArgs(void) {}
  /// @brief Sets arguments and parses them
  inline void setArgs(int argc, const char **argv) {
    setArgs(argc, const_cast<char **>(argv));
  }
  /// @brief Sets arguments and parses them
  void setArgs(int argc, char **argv);
  /// @brief Returns true if arguments contain paramKey with a value (separated
  /// by '=')
  bool hasParamWithValue(const char *paramKey) const;
  /// @brief Returns value of arguments
  /// @see hasParamWithValue(const char*)
  const char *getParamValue(const char *paramKey) const;
  /// @brief Return true if arguments has a param (not having a value) i,e
  /// without '='
  bool hasParam(const char *paramKey) const;
  /// @brief Returns true if no params available. This exclude argv[0]
  bool empty(void) const;
  /// @brief Returns total number of arguments. This exclude argv[0]
  std::size_t size(void) const;
  friend base::type::ostream_t &operator<<(base::type::ostream_t &os,
                                           const CommandLineArgs &c);

private:
  int m_argc;
  char **m_argv;
  std::unordered_map<std::string, std::string> m_paramsWithValue;
  std::vector<std::string> m_params;
};
/// @brief Abstract registry (aka repository) that provides basic interface for
/// pointer repository specified by T_Ptr type.
///
/// @detail Most of the functions are virtual final methods but anything
/// implementing this abstract class should implement unregisterAll() and
/// deepCopy(const AbstractRegistry<T_Ptr, Container>&) and write registerNew()
/// method according to container and few more methods; get() to find element,
/// unregister() to unregister single entry. Please note that this is
/// thread-unsafe and should also implement thread-safety mechanisms in
/// implementation.
template <typename T_Ptr, typename Container>
class AbstractRegistry : public base::threading::ThreadSafe {
public:
  typedef typename Container::iterator iterator;
  typedef typename Container::const_iterator const_iterator;

  /// @brief Default constructor
  AbstractRegistry(void) {}

  /// @brief Move constructor that is useful for base classes
  AbstractRegistry(AbstractRegistry &&sr) {
    if (this == &sr) {
      return;
    }
    unregisterAll();
    m_list = std::move(sr.m_list);
  }

  bool operator==(const AbstractRegistry<T_Ptr, Container> &other) {
    if (size() != other.size()) {
      return false;
    }
    for (std::size_t i = 0; i < m_list.size(); ++i) {
      if (m_list.at(i) != other.m_list.at(i)) {
        return false;
      }
    }
    return true;
  }

  bool operator!=(const AbstractRegistry<T_Ptr, Container> &other) {
    if (size() != other.size()) {
      return true;
    }
    for (std::size_t i = 0; i < m_list.size(); ++i) {
      if (m_list.at(i) != other.m_list.at(i)) {
        return true;
      }
    }
    return false;
  }

  /// @brief Assignment move operator
  AbstractRegistry &operator=(AbstractRegistry &&sr) {
    if (this == &sr) {
      return *this;
    }
    unregisterAll();
    m_list = std::move(sr.m_list);
    return *this;
  }

  virtual ~AbstractRegistry(void) {}

  /// @return Iterator pointer from start of repository
  virtual inline iterator begin(void) ELPP_FINAL { return m_list.begin(); }

  /// @return Iterator pointer from end of repository
  virtual inline iterator end(void) ELPP_FINAL { return m_list.end(); }

  /// @return Constant iterator pointer from start of repository
  virtual inline const_iterator cbegin(void) const ELPP_FINAL {
    return m_list.cbegin();
  }

  /// @return End of repository
  virtual inline const_iterator cend(void) const ELPP_FINAL {
    return m_list.cend();
  }

  /// @return Whether or not repository is empty
  virtual inline bool empty(void) const ELPP_FINAL { return m_list.empty(); }

  /// @return Size of repository
  virtual inline std::size_t size(void) const ELPP_FINAL {
    return m_list.size();
  }

  /// @brief Returns underlying container by reference
  virtual inline Container &list(void) ELPP_FINAL { return m_list; }

  /// @brief Returns underlying container by constant reference.
  virtual inline const Container &list(void) const ELPP_FINAL { return m_list; }

  /// @brief Unregisters all the pointers from current repository.
  virtual void unregisterAll(void) = 0;

protected:
  virtual void deepCopy(const AbstractRegistry<T_Ptr, Container> &) = 0;
  void reinitDeepCopy(const AbstractRegistry<T_Ptr, Container> &sr) {
    unregisterAll();
    deepCopy(sr);
  }

private:
  Container m_list;
};

/// @brief A pointer registry mechanism to manage memory and provide search
/// functionalities. (non-predicate version)
///
/// @detail NOTE: This is thread-unsafe implementation (although it contains
/// lock function, it does not use these functions)
///         of AbstractRegistry<T_Ptr, Container>. Any implementation of this
///         class should be explicitly (by using lock functions)
template <typename T_Ptr, typename T_Key = const char *>
class Registry
    : public AbstractRegistry<T_Ptr, std::unordered_map<T_Key, T_Ptr *>> {
public:
  typedef typename Registry<T_Ptr, T_Key>::iterator iterator;
  typedef typename Registry<T_Ptr, T_Key>::const_iterator const_iterator;

  Registry(void) {}

  /// @brief Copy constructor that is useful for base classes. Try to avoid this
  /// constructor, use move constructor.
  Registry(const Registry &sr)
      : AbstractRegistry<T_Ptr, std::vector<T_Ptr *>>() {
    if (this == &sr) {
      return;
    }
    this->reinitDeepCopy(sr);
  }

  /// @brief Assignment operator that unregisters all the existing registries
  /// and deeply copies each of repo element
  /// @see unregisterAll()
  /// @see deepCopy(const AbstractRegistry&)
  Registry &operator=(const Registry &sr) {
    if (this == &sr) {
      return *this;
    }
    this->reinitDeepCopy(sr);
    return *this;
  }

  virtual ~Registry(void) { unregisterAll(); }

protected:
  virtual void unregisterAll(void) ELPP_FINAL {
    if (!this->empty()) {
      for (auto &&curr : this->list()) {
        base::utils::safeDelete(curr.second);
      }
      this->list().clear();
    }
  }

  /// @brief Registers new registry to repository.
  virtual void registerNew(const T_Key &uniqKey, T_Ptr *ptr) ELPP_FINAL {
    unregister(uniqKey);
    this->list().insert(std::make_pair(uniqKey, ptr));
  }

  /// @brief Unregisters single entry mapped to specified unique key
  void unregister(const T_Key &uniqKey) {
    T_Ptr *existing = get(uniqKey);
    if (existing != nullptr) {
      this->list().erase(uniqKey);
      base::utils::safeDelete(existing);
    }
  }

  /// @brief Gets pointer from repository. If none found, nullptr is returned.
  T_Ptr *get(const T_Key &uniqKey) {
    iterator it = this->list().find(uniqKey);
    return it == this->list().end() ? nullptr : it->second;
  }

private:
  virtual void deepCopy(
      const AbstractRegistry<T_Ptr, std::unordered_map<T_Key, T_Ptr *>> &sr)
      ELPP_FINAL {
    for (const_iterator it = sr.cbegin(); it != sr.cend(); ++it) {
      registerNew(it->first, new T_Ptr(*it->second));
    }
  }
};

/// @brief A pointer registry mechanism to manage memory and provide search
/// functionalities. (predicate version)
///
/// @detail NOTE: This is thread-unsafe implementation of
/// AbstractRegistry<T_Ptr, Container>. Any implementation of this class should
/// be made thread-safe explicitly
template <typename T_Ptr, typename Pred>
class RegistryWithPred : public AbstractRegistry<T_Ptr, std::vector<T_Ptr *>> {
public:
  typedef typename RegistryWithPred<T_Ptr, Pred>::iterator iterator;
  typedef typename RegistryWithPred<T_Ptr, Pred>::const_iterator const_iterator;

  RegistryWithPred(void) {}

  virtual ~RegistryWithPred(void) { unregisterAll(); }

  /// @brief Copy constructor that is useful for base classes. Try to avoid this
  /// constructor, use move constructor.
  RegistryWithPred(const RegistryWithPred &sr)
      : AbstractRegistry<T_Ptr, std::vector<T_Ptr *>>() {
    if (this == &sr) {
      return;
    }
    this->reinitDeepCopy(sr);
  }

  /// @brief Assignment operator that unregisters all the existing registries
  /// and deeply copies each of repo element
  /// @see unregisterAll()
  /// @see deepCopy(const AbstractRegistry&)
  RegistryWithPred &operator=(const RegistryWithPred &sr) {
    if (this == &sr) {
      return *this;
    }
    this->reinitDeepCopy(sr);
    return *this;
  }

  friend base::type::ostream_t &operator<<(base::type::ostream_t &os,
                                           const RegistryWithPred &sr) {
    for (const_iterator it = sr.list().begin(); it != sr.list().end(); ++it) {
      os << ELPP_LITERAL("    ") << **it << ELPP_LITERAL("\n");
    }
    return os;
  }

protected:
  virtual void unregisterAll(void) ELPP_FINAL {
    if (!this->empty()) {
      for (auto &&curr : this->list()) {
        base::utils::safeDelete(curr);
      }
      this->list().clear();
    }
  }

  virtual void unregister(T_Ptr *&ptr) ELPP_FINAL {
    if (ptr) {
      iterator iter = this->begin();
      for (; iter != this->end(); ++iter) {
        if (ptr == *iter) {
          break;
        }
      }
      if (iter != this->end() && *iter != nullptr) {
        this->list().erase(iter);
        base::utils::safeDelete(*iter);
      }
    }
  }

  virtual inline void registerNew(T_Ptr *ptr) ELPP_FINAL {
    this->list().push_back(ptr);
  }

  /// @brief Gets pointer from repository with specified arguments. Arguments
  /// are passed to predicate in order to validate pointer.
  template <typename T, typename T2> T_Ptr *get(const T &arg1, const T2 arg2) {
    iterator iter = std::find_if(this->list().begin(), this->list().end(),
                                 Pred(arg1, arg2));
    if (iter != this->list().end() && *iter != nullptr) {
      return *iter;
    }
    return nullptr;
  }

private:
  virtual void
  deepCopy(const AbstractRegistry<T_Ptr, std::vector<T_Ptr *>> &sr) {
    for (const_iterator it = sr.list().begin(); it != sr.list().end(); ++it) {
      registerNew(new T_Ptr(**it));
    }
  }
};
class Utils {
public:
  template <typename T, typename TPtr>
  static bool installCallback(const std::string &id,
                              std::unordered_map<std::string, TPtr> *mapT) {
    if (mapT->find(id) == mapT->end()) {
      mapT->insert(std::make_pair(id, TPtr(new T())));
      return true;
    }
    return false;
  }

  template <typename T, typename TPtr>
  static void uninstallCallback(const std::string &id,
                                std::unordered_map<std::string, TPtr> *mapT) {
    if (mapT->find(id) != mapT->end()) {
      mapT->erase(id);
    }
  }

  template <typename T, typename TPtr>
  static T *callback(const std::string &id,
                     std::unordered_map<std::string, TPtr> *mapT) {
    typename std::unordered_map<std::string, TPtr>::iterator iter =
        mapT->find(id);
    if (iter != mapT->end()) {
      return static_cast<T *>(iter->second.get());
    }
    return nullptr;
  }
};
} // namespace utils
} // namespace base
/// @brief Base of Easylogging++ friendly class
///
/// @detail After inheriting this class publicly, implement pure-virtual
/// function `void log(std::ostream&) const`
class Loggable {
public:
  virtual ~Loggable(void) {}
  virtual void log(el::base::type::ostream_t &) const = 0;

private:
  friend inline el::base::type::ostream_t &
  operator<<(el::base::type::ostream_t &os, const Loggable &loggable) {
    loggable.log(os);
    return os;
  }
};
namespace base {
/// @brief Represents log format containing flags and date format. This is used
/// internally to start initial log
class LogFormat : public Loggable {
public:
  LogFormat(void);
  LogFormat(Level level, const base::type::string_t &format);
  LogFormat(const LogFormat &logFormat);
  LogFormat(LogFormat &&logFormat);
  LogFormat &operator=(const LogFormat &logFormat);
  virtual ~LogFormat(void) {}
  bool operator==(const LogFormat &other);

  /// @brief Updates format to be used while logging.
  /// @param userFormat User provided format
  void parseFromFormat(const base::type::string_t &userFormat);

  inline Level level(void) const { return m_level; }

  inline const base::type::string_t &userFormat(void) const {
    return m_userFormat;
  }

  inline const base::type::string_t &format(void) const { return m_format; }

  inline const std::string &dateTimeFormat(void) const {
    return m_dateTimeFormat;
  }

  inline base::type::EnumType flags(void) const { return m_flags; }

  inline bool hasFlag(base::FormatFlags flag) const {
    return base::utils::hasFlag(flag, m_flags);
  }

  virtual void log(el::base::type::ostream_t &os) const { os << m_format; }

protected:
  /// @brief Updates date time format if available in currFormat.
  /// @param index Index where %datetime, %date or %time was found
  /// @param [in,out] currFormat current format that is being used to format
  virtual void updateDateFormat(std::size_t index,
                                base::type::string_t &currFormat) ELPP_FINAL;

  /// @brief Updates %level from format. This is so that we dont have to do it
  /// at log-writing-time. It uses m_format and m_level
  virtual void updateFormatSpec(void) ELPP_FINAL;

  inline void addFlag(base::FormatFlags flag) {
    base::utils::addFlag(flag, &m_flags);
  }

private:
  Level m_level;
  base::type::string_t m_userFormat;
  base::type::string_t m_format;
  std::string m_dateTimeFormat;
  base::type::EnumType m_flags;
  std::string m_currentUser;
  std::string m_currentHost;
  friend class el::Logger; // To resolve loggerId format specifier easily
};
} // namespace base
/// @brief Resolving function for format specifier
typedef std::function<std::string(const LogMessage *)>
    FormatSpecifierValueResolver;
/// @brief User-provided custom format specifier
/// @see el::Helpers::installCustomFormatSpecifier
/// @see FormatSpecifierValueResolver
class CustomFormatSpecifier {
public:
  CustomFormatSpecifier(const char *formatSpecifier,
                        const FormatSpecifierValueResolver &resolver)
      : m_formatSpecifier(formatSpecifier), m_resolver(resolver) {}
  inline const char *formatSpecifier(void) const { return m_formatSpecifier; }
  inline const FormatSpecifierValueResolver &resolver(void) const {
    return m_resolver;
  }
  inline bool operator==(const char *formatSpecifier) {
    return strcmp(m_formatSpecifier, formatSpecifier) == 0;
  }

private:
  const char *m_formatSpecifier;
  FormatSpecifierValueResolver m_resolver;
};
/// @brief Represents single configuration that has representing level,
/// configuration type and a string based value.
///
/// @detail String based value means any value either its boolean, integer or
/// string itself, it will be embedded inside quotes and will be parsed later.
///
/// Consider some examples below:
///   * el::Configuration confEnabledInfo(el::Level::Info,
///   el::ConfigurationType::Enabled, "true");
///   * el::Configuration confMaxLogFileSizeInfo(el::Level::Info,
///   el::ConfigurationType::MaxLogFileSize, "2048");
///   * el::Configuration confFilenameInfo(el::Level::Info,
///   el::ConfigurationType::Filename, "/var/log/my.log");
class Configuration : public Loggable {
public:
  Configuration(const Configuration &c);
  Configuration &operator=(const Configuration &c);

  virtual ~Configuration(void) {}

  /// @brief Full constructor used to sets value of configuration
  Configuration(Level level, ConfigurationType configurationType,
                const std::string &value);

  /// @brief Gets level of current configuration
  inline Level level(void) const { return m_level; }

  /// @brief Gets configuration type of current configuration
  inline ConfigurationType configurationType(void) const {
    return m_configurationType;
  }

  /// @brief Gets string based configuration value
  inline const std::string &value(void) const { return m_value; }

  /// @brief Set string based configuration value
  /// @param value Value to set. Values have to be std::string; For boolean
  /// values use "true", "false", for any integral values
  ///        use them in quotes. They will be parsed when configuring
  inline void setValue(const std::string &value) { m_value = value; }

  virtual void log(el::base::type::ostream_t &os) const;

  /// @brief Used to find configuration from configuration (pointers)
  /// repository. Avoid using it.
  class Predicate {
  public:
    Predicate(Level level, ConfigurationType configurationType);

    bool operator()(const Configuration *conf) const;

  private:
    Level m_level;
    ConfigurationType m_configurationType;
  };

private:
  Level m_level;
  ConfigurationType m_configurationType;
  std::string m_value;
};

/// @brief Thread-safe Configuration repository
///
/// @detail This repository represents configurations for all the levels and
/// configuration type mapped to a value.
class Configurations
    : public base::utils::RegistryWithPred<Configuration,
                                           Configuration::Predicate> {
public:
  /// @brief Default constructor with empty repository
  Configurations(void);

  /// @brief Constructor used to set configurations using configuration file.
  /// @param configurationFile Full path to configuration file
  /// @param useDefaultsForRemaining Lets you set the remaining configurations
  /// to default.
  /// @param base If provided, this configuration will be based off existing
  /// repository that this argument is pointing to.
  /// @see parseFromFile(const std::string&, Configurations* base)
  /// @see setRemainingToDefault()
  Configurations(const std::string &configurationFile,
                 bool useDefaultsForRemaining = true,
                 Configurations *base = nullptr);

  virtual ~Configurations(void) {}

  /// @brief Parses configuration from file.
  /// @param configurationFile Full path to configuration file
  /// @param base Configurations to base new configuration repository off. This
  /// value is used when you want to use
  ///        existing Configurations to base all the values and then set rest of
  ///        configuration via configuration file.
  /// @return True if successfully parsed, false otherwise. You may define
  /// 'ELPP_DEBUG_ASSERT_FAILURE' to make sure you
  ///         do not proceed without successful parse.
  bool parseFromFile(const std::string &configurationFile,
                     Configurations *base = nullptr);

  /// @brief Parse configurations from configuration string.
  ///
  /// @detail This configuration string has same syntax as configuration file
  /// contents. Make sure all the necessary new line characters are provided.
  /// @param base Configurations to base new configuration repository off. This
  /// value is used when you want to use
  ///        existing Configurations to base all the values and then set rest of
  ///        configuration via configuration text.
  /// @return True if successfully parsed, false otherwise. You may define
  /// 'ELPP_DEBUG_ASSERT_FAILURE' to make sure you
  ///         do not proceed without successful parse.
  bool parseFromText(const std::string &configurationsString,
                     Configurations *base = nullptr);

  /// @brief Sets configuration based-off an existing configurations.
  /// @param base Pointer to existing configurations.
  void setFromBase(Configurations *base);

  /// @brief Determines whether or not specified configuration type exists in
  /// the repository.
  ///
  /// @detail Returns as soon as first level is found.
  /// @param configurationType Type of configuration to check existence for.
  bool hasConfiguration(ConfigurationType configurationType);

  /// @brief Determines whether or not specified configuration type exists for
  /// specified level
  /// @param level Level to check
  /// @param configurationType Type of configuration to check existence for.
  bool hasConfiguration(Level level, ConfigurationType configurationType);

  /// @brief Sets value of configuration for specified level.
  ///
  /// @detail Any existing configuration for specified level will be replaced.
  /// Also note that configuration types ConfigurationType::SubsecondPrecision
  /// and ConfigurationType::PerformanceTracking will be ignored if not set for
  /// Level::Global because these configurations are not dependant on level.
  /// @param level Level to set configuration for (el::Level).
  /// @param configurationType Type of configuration (el::ConfigurationType)
  /// @param value A string based value. Regardless of what the data type of
  /// configuration is, it will always be string from users' point of view. This
  /// is then parsed later to be used internally.
  /// @see Configuration::setValue(const std::string& value)
  /// @see el::Level
  /// @see el::ConfigurationType
  void set(Level level, ConfigurationType configurationType,
           const std::string &value);

  /// @brief Sets single configuration based on other single configuration.
  /// @see set(Level level, ConfigurationType configurationType, const
  /// std::string& value)
  void set(Configuration *conf);

  inline Configuration *get(Level level, ConfigurationType configurationType) {
    base::threading::ScopedLock scopedLock(lock());
    return RegistryWithPred<Configuration, Configuration::Predicate>::get(
        level, configurationType);
  }

  /// @brief Sets configuration for all levels.
  /// @param configurationType Type of configuration
  /// @param value String based value
  /// @see Configurations::set(Level level, ConfigurationType configurationType,
  /// const std::string& value)
  inline void setGlobally(ConfigurationType configurationType,
                          const std::string &value) {
    setGlobally(configurationType, value, false);
  }

  /// @brief Clears repository so that all the configurations are unset
  inline void clear(void) {
    base::threading::ScopedLock scopedLock(lock());
    unregisterAll();
  }

  /// @brief Gets configuration file used in parsing this configurations.
  ///
  /// @detail If this repository was set manually or by text this returns empty
  /// string.
  inline const std::string &configurationFile(void) const {
    return m_configurationFile;
  }

  /// @brief Sets configurations to "factory based" configurations.
  void setToDefault(void);

  /// @brief Lets you set the remaining configurations to default.
  ///
  /// @detail By remaining, it means that the level/type a configuration does
  /// not exist for. This function is useful when you want to minimize chances
  /// of failures, e.g, if you have a configuration file that sets configuration
  /// for all the configurations except for Enabled or not, we use this so that
  /// ENABLED is set to default i.e, true. If you dont do this explicitly
  /// (either by calling this function or by using second param in Constructor
  /// and try to access a value, an error is thrown
  void setRemainingToDefault(void);

  /// @brief Parser used internally to parse configurations from file or text.
  ///
  /// @detail This class makes use of base::utils::Str.
  /// You should not need this unless you are working on some tool for
  /// Easylogging++
  class Parser : base::StaticClass {
  public:
    /// @brief Parses configuration from file.
    /// @param configurationFile Full path to configuration file
    /// @param sender Sender configurations pointer. Usually 'this' is used from
    /// calling class
    /// @param base Configurations to base new configuration repository off.
    /// This value is used when you want to use
    ///        existing Configurations to base all the values and then set rest
    ///        of configuration via configuration file.
    /// @return True if successfully parsed, false otherwise. You may define
    /// '_STOP_ON_FIRSTELPP_ASSERTION' to make sure you
    ///         do not proceed without successful parse.
    static bool parseFromFile(const std::string &configurationFile,
                              Configurations *sender,
                              Configurations *base = nullptr);

    /// @brief Parse configurations from configuration string.
    ///
    /// @detail This configuration string has same syntax as configuration file
    /// contents. Make sure all the necessary new line characters are provided.
    /// You may define '_STOP_ON_FIRSTELPP_ASSERTION' to make sure you do not
    /// proceed without successful parse (This is recommended)
    /// @param configurationsString the configuration in plain text format
    /// @param sender Sender configurations pointer. Usually 'this' is used from
    /// calling class
    /// @param base Configurations to base new configuration repository off.
    /// This value is used when you want to use
    ///        existing Configurations to base all the values and then set rest
    ///        of configuration via configuration text.
    /// @return True if successfully parsed, false otherwise.
    static bool parseFromText(const std::string &configurationsString,
                              Configurations *sender,
                              Configurations *base = nullptr);

  private:
    friend class el::Loggers;
    static void ignoreComments(std::string *line);
    static bool isLevel(const std::string &line);
    static bool isComment(const std::string &line);
    static inline bool isConfig(const std::string &line);
    static bool parseLine(std::string *line, std::string *currConfigStr,
                          std::string *currLevelStr, Level *currLevel,
                          Configurations *conf);
  };

private:
  std::string m_configurationFile;
  bool m_isFromFile;
  friend class el::Loggers;

  /// @brief Unsafely sets configuration if does not already exist
  void unsafeSetIfNotExist(Level level, ConfigurationType configurationType,
                           const std::string &value);

  /// @brief Thread unsafe set
  void unsafeSet(Level level, ConfigurationType configurationType,
                 const std::string &value);

  /// @brief Sets configurations for all levels including Level::Global if
  /// includeGlobalLevel is true
  /// @see Configurations::setGlobally(ConfigurationType configurationType,
  /// const std::string& value)
  void setGlobally(ConfigurationType configurationType,
                   const std::string &value, bool includeGlobalLevel);

  /// @brief Sets configurations (Unsafely) for all levels including
  /// Level::Global if includeGlobalLevel is true
  /// @see Configurations::setGlobally(ConfigurationType configurationType,
  /// const std::string& value)
  void unsafeSetGlobally(ConfigurationType configurationType,
                         const std::string &value, bool includeGlobalLevel);
};

namespace base {
typedef std::shared_ptr<base::type::fstream_t> FileStreamPtr;
typedef std::unordered_map<std::string, FileStreamPtr> LogStreamsReferenceMap;
typedef std::shared_ptr<base::LogStreamsReferenceMap> LogStreamsReferenceMapPtr;
/// @brief Configurations with data types.
///
/// @detail el::Configurations have string based values. This is whats used
/// internally in order to read correct configurations. This is to perform
/// faster while writing logs using correct configurations.
///
/// This is thread safe and final class containing non-virtual destructor (means
/// nothing should inherit this class)
class TypedConfigurations : public base::threading::ThreadSafe {
public:
  /// @brief Constructor to initialize (construct) the object off
  /// el::Configurations
  /// @param configurations Configurations pointer/reference to base this typed
  /// configurations off.
  /// @param logStreamsReference Use
  /// ELPP->registeredLoggers()->logStreamsReference()
  TypedConfigurations(Configurations *configurations,
                      LogStreamsReferenceMapPtr logStreamsReference);

  TypedConfigurations(const TypedConfigurations &other);

  virtual ~TypedConfigurations(void) {}

  const Configurations *configurations(void) const { return m_configurations; }

  bool enabled(Level level);
  bool toFile(Level level);
  const std::string &filename(Level level);
  bool toStandardOutput(Level level);
  const base::LogFormat &logFormat(Level level);
  const base::SubsecondPrecision &
  subsecondPrecision(Level level = Level::Global);
  const base::MillisecondsWidth &millisecondsWidth(Level level = Level::Global);
  bool performanceTracking(Level level = Level::Global);
  base::type::fstream_t *fileStream(Level level);
  std::size_t maxLogFileSize(Level level);
  std::size_t logFlushThreshold(Level level);

private:
  Configurations *m_configurations;
  std::unordered_map<Level, bool> m_enabledMap;
  std::unordered_map<Level, bool> m_toFileMap;
  std::unordered_map<Level, std::string> m_filenameMap;
  std::unordered_map<Level, bool> m_toStandardOutputMap;
  std::unordered_map<Level, base::LogFormat> m_logFormatMap;
  std::unordered_map<Level, base::SubsecondPrecision> m_subsecondPrecisionMap;
  std::unordered_map<Level, bool> m_performanceTrackingMap;
  std::unordered_map<Level, base::FileStreamPtr> m_fileStreamMap;
  std::unordered_map<Level, std::size_t> m_maxLogFileSizeMap;
  std::unordered_map<Level, std::size_t> m_logFlushThresholdMap;
  LogStreamsReferenceMapPtr m_logStreamsReference = nullptr;

  friend class el::Helpers;
  friend class el::base::MessageBuilder;
  friend class el::base::Writer;
  friend class el::base::DefaultLogDispatchCallback;
  friend class el::base::LogDispatcher;

  template <typename Conf_T>
  inline Conf_T getConfigByVal(Level level,
                               const std::unordered_map<Level, Conf_T> *confMap,
                               const char *confName) {
    base::threading::ScopedLock scopedLock(lock());
    return unsafeGetConfigByVal(
        level, confMap,
        confName); // This is not unsafe anymore - mutex locked in scope
  }

  template <typename Conf_T>
  inline Conf_T &getConfigByRef(Level level,
                                std::unordered_map<Level, Conf_T> *confMap,
                                const char *confName) {
    base::threading::ScopedLock scopedLock(lock());
    return unsafeGetConfigByRef(
        level, confMap,
        confName); // This is not unsafe anymore - mutex locked in scope
  }

  template <typename Conf_T>
  Conf_T unsafeGetConfigByVal(Level level,
                              const std::unordered_map<Level, Conf_T> *confMap,
                              const char *confName) {
    ELPP_UNUSED(confName);
    typename std::unordered_map<Level, Conf_T>::const_iterator it =
        confMap->find(level);
    if (it == confMap->end()) {
      try {
        return confMap->at(Level::Global);
      } catch (...) {
        ELPP_INTERNAL_ERROR(
            "Unable to get configuration ["
                << confName << "] for level ["
                << LevelHelper::convertToString(level) << "]" << std::endl
                << "Please ensure you have properly configured logger.",
            false);
        return Conf_T();
      }
    }
    return it->second;
  }

  template <typename Conf_T>
  Conf_T &unsafeGetConfigByRef(Level level,
                               std::unordered_map<Level, Conf_T> *confMap,
                               const char *confName) {
    ELPP_UNUSED(confName);
    typename std::unordered_map<Level, Conf_T>::iterator it =
        confMap->find(level);
    if (it == confMap->end()) {
      try {
        return confMap->at(Level::Global);
      } catch (...) {
        ELPP_INTERNAL_ERROR(
            "Unable to get configuration ["
                << confName << "] for level ["
                << LevelHelper::convertToString(level) << "]" << std::endl
                << "Please ensure you have properly configured logger.",
            false);
      }
    }
    return it->second;
  }

  template <typename Conf_T>
  void setValue(Level level, const Conf_T &value,
                std::unordered_map<Level, Conf_T> *confMap,
                bool includeGlobalLevel = true) {
    // If map is empty and we are allowed to add into generic level
    // (Level::Global), do it!
    if (confMap->empty() && includeGlobalLevel) {
      confMap->insert(std::make_pair(Level::Global, value));
      return;
    }
    // If same value exist in generic level already, dont add it to explicit
    // level
    typename std::unordered_map<Level, Conf_T>::iterator it =
        confMap->find(Level::Global);
    if (it != confMap->end() && it->second == value) {
      return;
    }
    // Now make sure we dont double up values if we really need to add it to
    // explicit level
    it = confMap->find(level);
    if (it == confMap->end()) {
      // Value not found for level, add new
      confMap->insert(std::make_pair(level, value));
    } else {
      // Value found, just update value
      confMap->at(level) = value;
    }
  }

  void build(Configurations *configurations);
  unsigned long getULong(std::string confVal);
  std::string resolveFilename(const std::string &filename);
  void insertFile(Level level, const std::string &fullFilename);
  bool unsafeValidateFileRolling(Level level,
                                 const PreRollOutCallback &preRollOutCallback);

  inline bool
  validateFileRolling(Level level,
                      const PreRollOutCallback &preRollOutCallback) {
    base::threading::ScopedLock scopedLock(lock());
    return unsafeValidateFileRolling(level, preRollOutCallback);
  }
};
/// @brief Class that keeps record of current line hit for occasional logging
class HitCounter {
public:
  HitCounter(void) : m_filename(""), m_lineNumber(0), m_hitCounts(0) {}

  HitCounter(const char *filename, base::type::LineNumber lineNumber)
      : m_filename(filename), m_lineNumber(lineNumber), m_hitCounts(0) {}

  HitCounter(const HitCounter &hitCounter)
      : m_filename(hitCounter.m_filename),
        m_lineNumber(hitCounter.m_lineNumber),
        m_hitCounts(hitCounter.m_hitCounts) {}

  HitCounter &operator=(const HitCounter &hitCounter) {
    if (&hitCounter != this) {
      m_filename = hitCounter.m_filename;
      m_lineNumber = hitCounter.m_lineNumber;
      m_hitCounts = hitCounter.m_hitCounts;
    }
    return *this;
  }

  virtual ~HitCounter(void) {}

  /// @brief Resets location of current hit counter
  inline void resetLocation(const char *filename,
                            base::type::LineNumber lineNumber) {
    m_filename = filename;
    m_lineNumber = lineNumber;
  }

  /// @brief Validates hit counts and resets it if necessary
  inline void validateHitCounts(std::size_t n) {
    if (m_hitCounts >= base::consts::kMaxLogPerCounter) {
      m_hitCounts = (n >= 1 ? base::consts::kMaxLogPerCounter % n : 0);
    }
    ++m_hitCounts;
  }

  inline const char *filename(void) const { return m_filename; }

  inline base::type::LineNumber lineNumber(void) const { return m_lineNumber; }

  inline std::size_t hitCounts(void) const { return m_hitCounts; }

  inline void increment(void) { ++m_hitCounts; }

  class Predicate {
  public:
    Predicate(const char *filename, base::type::LineNumber lineNumber)
        : m_filename(filename), m_lineNumber(lineNumber) {}
    inline bool operator()(const HitCounter *counter) {
      return ((counter != nullptr) &&
              (strcmp(counter->m_filename, m_filename) == 0) &&
              (counter->m_lineNumber == m_lineNumber));
    }

  private:
    const char *m_filename;
    base::type::LineNumber m_lineNumber;
  };

private:
  const char *m_filename;
  base::type::LineNumber m_lineNumber;
  std::size_t m_hitCounts;
};
/// @brief Repository for hit counters used across the application
class RegisteredHitCounters
    : public base::utils::RegistryWithPred<base::HitCounter,
                                           base::HitCounter::Predicate> {
public:
  /// @brief Validates counter for every N, i.e, registers new if does not exist
  /// otherwise updates original one
  /// @return True if validation resulted in triggering hit. Meaning logs should
  /// be written everytime true is returned
  bool validateEveryN(const char *filename, base::type::LineNumber lineNumber,
                      std::size_t n);

  /// @brief Validates counter for hits >= N, i.e, registers new if does not
  /// exist otherwise updates original one
  /// @return True if validation resulted in triggering hit. Meaning logs should
  /// be written everytime true is returned
  bool validateAfterN(const char *filename, base::type::LineNumber lineNumber,
                      std::size_t n);

  /// @brief Validates counter for hits are <= n, i.e, registers new if does not
  /// exist otherwise updates original one
  /// @return True if validation resulted in triggering hit. Meaning logs should
  /// be written everytime true is returned
  bool validateNTimes(const char *filename, base::type::LineNumber lineNumber,
                      std::size_t n);

  /// @brief Gets hit counter registered at specified position
  inline const base::HitCounter *getCounter(const char *filename,
                                            base::type::LineNumber lineNumber) {
    base::threading::ScopedLock scopedLock(lock());
    return get(filename, lineNumber);
  }
};
/// @brief Action to be taken for dispatching
enum class DispatchAction : base::type::EnumType {
  None = 1,
  NormalLog = 2,
  SysLog = 4
};
} // namespace base
template <typename T> class Callback : protected base::threading::ThreadSafe {
public:
  Callback(void) : m_enabled(true) {}
  inline bool enabled(void) const { return m_enabled; }
  inline void setEnabled(bool enabled) {
    base::threading::ScopedLock scopedLock(lock());
    m_enabled = enabled;
  }

protected:
  virtual void handle(const T *handlePtr) = 0;

private:
  bool m_enabled;
};
class LogDispatchData {
public:
  LogDispatchData()
      : m_logMessage(nullptr), m_dispatchAction(base::DispatchAction::None) {}
  inline const LogMessage *logMessage(void) const { return m_logMessage; }
  inline base::DispatchAction dispatchAction(void) const {
    return m_dispatchAction;
  }
  inline void setLogMessage(LogMessage *logMessage) {
    m_logMessage = logMessage;
  }
  inline void setDispatchAction(base::DispatchAction dispatchAction) {
    m_dispatchAction = dispatchAction;
  }

private:
  LogMessage *m_logMessage;
  base::DispatchAction m_dispatchAction;
  friend class base::LogDispatcher;
};
class LogDispatchCallback : public Callback<LogDispatchData> {
protected:
  virtual void handle(const LogDispatchData *data);
  base::threading::Mutex &fileHandle(const LogDispatchData *data);

private:
  friend class base::LogDispatcher;
  std::unordered_map<std::string, std::unique_ptr<base::threading::Mutex>>
      m_fileLocks;
  base::threading::Mutex m_fileLocksMapLock;
};
class PerformanceTrackingCallback : public Callback<PerformanceTrackingData> {
private:
  friend class base::PerformanceTracker;
};
class LoggerRegistrationCallback : public Callback<Logger> {
private:
  friend class base::RegisteredLoggers;
};
class LogBuilder : base::NoCopy {
public:
  LogBuilder() : m_termSupportsColor(base::utils::OS::termSupportsColor()) {}
  virtual ~LogBuilder(void) {
    ELPP_INTERNAL_INFO(3, "Destroying log builder...")
  }
  virtual base::type::string_t build(const LogMessage *logMessage,
                                     bool appendNewLine) const = 0;
  void convertToColoredOutput(base::type::string_t *logLine, Level level);

private:
  bool m_termSupportsColor;
  friend class el::base::DefaultLogDispatchCallback;
};
typedef std::shared_ptr<LogBuilder> LogBuilderPtr;
/// @brief Represents a logger holding ID and configurations we need to write
/// logs
///
/// @detail This class does not write logs itself instead its used by writer to
/// read configurations from.
class Logger : public base::threading::ThreadSafe, public Loggable {
public:
  Logger(const std::string &id,
         base::LogStreamsReferenceMapPtr logStreamsReference);
  Logger(const std::string &id, const Configurations &configurations,
         base::LogStreamsReferenceMapPtr logStreamsReference);
  Logger(const Logger &logger);
  Logger &operator=(const Logger &logger);

  virtual ~Logger(void) { base::utils::safeDelete(m_typedConfigurations); }

  virtual inline void log(el::base::type::ostream_t &os) const {
    os << m_id.c_str();
  }

  /// @brief Configures the logger using specified configurations.
  void configure(const Configurations &configurations);

  /// @brief Reconfigures logger using existing configurations
  void reconfigure(void);

  inline const std::string &id(void) const { return m_id; }

  inline const std::string &parentApplicationName(void) const {
    return m_parentApplicationName;
  }

  inline void
  setParentApplicationName(const std::string &parentApplicationName) {
    m_parentApplicationName = parentApplicationName;
  }

  inline Configurations *configurations(void) { return &m_configurations; }

  inline base::TypedConfigurations *typedConfigurations(void) {
    return m_typedConfigurations;
  }

  static bool isValidId(const std::string &id);

  /// @brief Flushes logger to sync all log files for all levels
  void flush(void);

  void flush(Level level, base::type::fstream_t *fs);

  inline bool isFlushNeeded(Level level) {
    return ++m_unflushedCount.find(level)->second >=
           m_typedConfigurations->logFlushThreshold(level);
  }

  inline LogBuilder *logBuilder(void) const { return m_logBuilder.get(); }

  inline void setLogBuilder(const LogBuilderPtr &logBuilder) {
    m_logBuilder = logBuilder;
  }

  inline bool enabled(Level level) const {
    return m_typedConfigurations->enabled(level);
  }

#if ELPP_VARIADIC_TEMPLATES_SUPPORTED
#define LOGGER_LEVEL_WRITERS_SIGNATURES(FUNCTION_NAME)                         \
  template <typename T, typename... Args>                                      \
  inline void FUNCTION_NAME(const char *, const T &, const Args &...);         \
  template <typename T> inline void FUNCTION_NAME(const T &);

  template <typename T, typename... Args>
  inline void verbose(int, const char *, const T &, const Args &...);

  template <typename T> inline void verbose(int, const T &);

  LOGGER_LEVEL_WRITERS_SIGNATURES(info)
  LOGGER_LEVEL_WRITERS_SIGNATURES(debug)
  LOGGER_LEVEL_WRITERS_SIGNATURES(warn)
  LOGGER_LEVEL_WRITERS_SIGNATURES(error)
  LOGGER_LEVEL_WRITERS_SIGNATURES(fatal)
  LOGGER_LEVEL_WRITERS_SIGNATURES(trace)
#undef LOGGER_LEVEL_WRITERS_SIGNATURES
#endif // ELPP_VARIADIC_TEMPLATES_SUPPORTED
private:
  std::string m_id;
  base::TypedConfigurations *m_typedConfigurations;
  base::type::stringstream_t m_stream;
  std::string m_parentApplicationName;
  bool m_isConfigured;
  Configurations m_configurations;
  std::unordered_map<Level, unsigned int> m_unflushedCount;
  base::LogStreamsReferenceMapPtr m_logStreamsReference = nullptr;
  LogBuilderPtr m_logBuilder;

  friend class el::LogMessage;
  friend class el::Loggers;
  friend class el::Helpers;
  friend class el::base::RegisteredLoggers;
  friend class el::base::DefaultLogDispatchCallback;
  friend class el::base::MessageBuilder;
  friend class el::base::Writer;
  friend class el::base::PErrorWriter;
  friend class el::base::Storage;
  friend class el::base::PerformanceTracker;
  friend class el::base::LogDispatcher;

  Logger(void);

#if ELPP_VARIADIC_TEMPLATES_SUPPORTED
  template <typename T, typename... Args>
  void log_(Level, int, const char *, const T &, const Args &...);

  template <typename T> inline void log_(Level, int, const T &);

  template <typename T, typename... Args>
  void log(Level, const char *, const T &, const Args &...);

  template <typename T> inline void log(Level, const T &);
#endif // ELPP_VARIADIC_TEMPLATES_SUPPORTED

  void initUnflushedCount(void);

  inline base::type::stringstream_t &stream(void) { return m_stream; }

  void resolveLoggerFormatSpec(void) const;
};
namespace base {
/// @brief Loggers repository
class RegisteredLoggers : public base::utils::Registry<Logger, std::string> {
public:
  explicit RegisteredLoggers(const LogBuilderPtr &defaultLogBuilder);

  virtual ~RegisteredLoggers(void) { unsafeFlushAll(); }

  inline void setDefaultConfigurations(const Configurations &configurations) {
    base::threading::ScopedLock scopedLock(lock());
    m_defaultConfigurations.setFromBase(
        const_cast<Configurations *>(&configurations));
  }

  inline Configurations *defaultConfigurations(void) {
    return &m_defaultConfigurations;
  }

  Logger *get(const std::string &id, bool forceCreation = true);

  template <typename T>
  inline bool installLoggerRegistrationCallback(const std::string &id) {
    return base::utils::Utils::installCallback<
        T, base::type::LoggerRegistrationCallbackPtr>(
        id, &m_loggerRegistrationCallbacks);
  }

  template <typename T>
  inline void uninstallLoggerRegistrationCallback(const std::string &id) {
    base::utils::Utils::uninstallCallback<
        T, base::type::LoggerRegistrationCallbackPtr>(
        id, &m_loggerRegistrationCallbacks);
  }

  template <typename T>
  inline T *loggerRegistrationCallback(const std::string &id) {
    return base::utils::Utils::callback<
        T, base::type::LoggerRegistrationCallbackPtr>(
        id, &m_loggerRegistrationCallbacks);
  }

  bool remove(const std::string &id);

  inline bool has(const std::string &id) { return get(id, false) != nullptr; }

  inline void unregister(Logger *&logger) {
    base::threading::ScopedLock scopedLock(lock());
    base::utils::Registry<Logger, std::string>::unregister(logger->id());
  }

  inline LogStreamsReferenceMapPtr logStreamsReference(void) {
    return m_logStreamsReference;
  }

  inline void flushAll(void) {
    base::threading::ScopedLock scopedLock(lock());
    unsafeFlushAll();
  }

  inline void setDefaultLogBuilder(LogBuilderPtr &logBuilderPtr) {
    base::threading::ScopedLock scopedLock(lock());
    m_defaultLogBuilder = logBuilderPtr;
  }

private:
  LogBuilderPtr m_defaultLogBuilder;
  Configurations m_defaultConfigurations;
  base::LogStreamsReferenceMapPtr m_logStreamsReference = nullptr;
  std::unordered_map<std::string, base::type::LoggerRegistrationCallbackPtr>
      m_loggerRegistrationCallbacks;
  friend class el::base::Storage;

  void unsafeFlushAll(void);
};
/// @brief Represents registries for verbose logging
class VRegistry : base::NoCopy, public base::threading::ThreadSafe {
public:
  explicit VRegistry(base::type::VerboseLevel level,
                     base::type::EnumType *pFlags);

  /// @brief Sets verbose level. Accepted range is 0-9
  void setLevel(base::type::VerboseLevel level);

  inline base::type::VerboseLevel level(void) const { return m_level; }

  inline void clearModules(void) {
    base::threading::ScopedLock scopedLock(lock());
    m_modules.clear();
  }

  void setModules(const char *modules);

  bool allowed(base::type::VerboseLevel vlevel, const char *file);

  inline const std::unordered_map<std::string, base::type::VerboseLevel> &
  modules(void) const {
    return m_modules;
  }

  void setFromArgs(const base::utils::CommandLineArgs *commandLineArgs);

  /// @brief Whether or not vModules enabled
  inline bool vModulesEnabled(void) {
    return !base::utils::hasFlag(LoggingFlag::DisableVModules, *m_pFlags);
  }

private:
  base::type::VerboseLevel m_level;
  base::type::EnumType *m_pFlags;
  std::unordered_map<std::string, base::type::VerboseLevel> m_modules;
};
} // namespace base
class LogMessage {
public:
  LogMessage(Level level, const std::string &file, base::type::LineNumber line,
             const std::string &func, base::type::VerboseLevel verboseLevel,
             Logger *logger)
      : m_level(level), m_file(file), m_line(line), m_func(func),
        m_verboseLevel(verboseLevel), m_logger(logger),
        m_message(logger->stream().str()) {}
  inline Level level(void) const { return m_level; }
  inline const std::string &file(void) const { return m_file; }
  inline base::type::LineNumber line(void) const { return m_line; }
  inline const std::string &func(void) const { return m_func; }
  inline base::type::VerboseLevel verboseLevel(void) const {
    return m_verboseLevel;
  }
  inline Logger *logger(void) const { return m_logger; }
  inline const base::type::string_t &message(void) const { return m_message; }

private:
  Level m_level;
  std::string m_file;
  base::type::LineNumber m_line;
  std::string m_func;
  base::type::VerboseLevel m_verboseLevel;
  Logger *m_logger;
  base::type::string_t m_message;
};
namespace base {
#if ELPP_ASYNC_LOGGING
class AsyncLogItem {
public:
  explicit AsyncLogItem(const LogMessage &logMessage,
                        const LogDispatchData &data,
                        const base::type::string_t &logLine)
      : m_logMessage(logMessage), m_dispatchData(data), m_logLine(logLine) {}
  virtual ~AsyncLogItem() {}
  inline LogMessage *logMessage(void) { return &m_logMessage; }
  inline LogDispatchData *data(void) { return &m_dispatchData; }
  inline base::type::string_t logLine(void) { return m_logLine; }

private:
  LogMessage m_logMessage;
  LogDispatchData m_dispatchData;
  base::type::string_t m_logLine;
};
class AsyncLogQueue : public base::threading::ThreadSafe {
public:
  virtual ~AsyncLogQueue() { ELPP_INTERNAL_INFO(6, "~AsyncLogQueue"); }

  inline AsyncLogItem next(void) {
    base::threading::ScopedLock scopedLock(lock());
    AsyncLogItem result = m_queue.front();
    m_queue.pop();
    return result;
  }

  inline void push(const AsyncLogItem &item) {
    base::threading::ScopedLock scopedLock(lock());
    m_queue.push(item);
  }
  inline void pop(void) {
    base::threading::ScopedLock scopedLock(lock());
    m_queue.pop();
  }
  inline AsyncLogItem front(void) {
    base::threading::ScopedLock scopedLock(lock());
    return m_queue.front();
  }
  inline bool empty(void) {
    base::threading::ScopedLock scopedLock(lock());
    return m_queue.empty();
  }

private:
  std::queue<AsyncLogItem> m_queue;
};
class IWorker {
public:
  virtual ~IWorker() {}
  virtual void start() = 0;
};
#endif // ELPP_ASYNC_LOGGING
/// @brief Easylogging++ management storage
class Storage : base::NoCopy, public base::threading::ThreadSafe {
public:
#if ELPP_ASYNC_LOGGING
  Storage(const LogBuilderPtr &defaultLogBuilder,
          base::IWorker *asyncDispatchWorker);
#else
  explicit Storage(const LogBuilderPtr &defaultLogBuilder);
#endif // ELPP_ASYNC_LOGGING

  virtual ~Storage(void);

  inline bool validateEveryNCounter(const char *filename,
                                    base::type::LineNumber lineNumber,
                                    std::size_t occasion) {
    return hitCounters()->validateEveryN(filename, lineNumber, occasion);
  }

  inline bool validateAfterNCounter(const char *filename,
                                    base::type::LineNumber lineNumber,
                                    std::size_t n) {
    return hitCounters()->validateAfterN(filename, lineNumber, n);
  }

  inline bool validateNTimesCounter(const char *filename,
                                    base::type::LineNumber lineNumber,
                                    std::size_t n) {
    return hitCounters()->validateNTimes(filename, lineNumber, n);
  }

  inline base::RegisteredHitCounters *hitCounters(void) const {
    return m_registeredHitCounters;
  }

  inline base::RegisteredLoggers *registeredLoggers(void) const {
    return m_registeredLoggers;
  }

  inline base::VRegistry *vRegistry(void) const { return m_vRegistry; }

#if ELPP_ASYNC_LOGGING
  inline base::AsyncLogQueue *asyncLogQueue(void) const {
    return m_asyncLogQueue;
  }
#endif // ELPP_ASYNC_LOGGING

  inline const base::utils::CommandLineArgs *commandLineArgs(void) const {
    return &m_commandLineArgs;
  }

  inline void addFlag(LoggingFlag flag) {
    base::utils::addFlag(flag, &m_flags);
  }

  inline void removeFlag(LoggingFlag flag) {
    base::utils::removeFlag(flag, &m_flags);
  }

  inline bool hasFlag(LoggingFlag flag) const {
    return base::utils::hasFlag(flag, m_flags);
  }

  inline base::type::EnumType flags(void) const { return m_flags; }

  inline void setFlags(base::type::EnumType flags) { m_flags = flags; }

  inline void setPreRollOutCallback(const PreRollOutCallback &callback) {
    m_preRollOutCallback = callback;
  }

  inline void unsetPreRollOutCallback(void) {
    m_preRollOutCallback = base::defaultPreRollOutCallback;
  }

  inline PreRollOutCallback &preRollOutCallback(void) {
    return m_preRollOutCallback;
  }

  bool hasCustomFormatSpecifier(const char *formatSpecifier);
  void installCustomFormatSpecifier(
      const CustomFormatSpecifier &customFormatSpecifier);
  bool uninstallCustomFormatSpecifier(const char *formatSpecifier);

  const std::vector<CustomFormatSpecifier> *customFormatSpecifiers(void) const {
    return &m_customFormatSpecifiers;
  }

  base::threading::Mutex &customFormatSpecifiersLock() {
    return m_customFormatSpecifiersLock;
  }

  inline void setLoggingLevel(Level level) { m_loggingLevel = level; }

  template <typename T>
  inline bool installLogDispatchCallback(const std::string &id) {
    return base::utils::Utils::installCallback<
        T, base::type::LogDispatchCallbackPtr>(id, &m_logDispatchCallbacks);
  }

  template <typename T>
  inline void uninstallLogDispatchCallback(const std::string &id) {
    base::utils::Utils::uninstallCallback<T,
                                          base::type::LogDispatchCallbackPtr>(
        id, &m_logDispatchCallbacks);
  }
  template <typename T> inline T *logDispatchCallback(const std::string &id) {
    return base::utils::Utils::callback<T, base::type::LogDispatchCallbackPtr>(
        id, &m_logDispatchCallbacks);
  }

#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING)
  template <typename T>
  inline bool installPerformanceTrackingCallback(const std::string &id) {
    return base::utils::Utils::installCallback<
        T, base::type::PerformanceTrackingCallbackPtr>(
        id, &m_performanceTrackingCallbacks);
  }

  template <typename T>
  inline void uninstallPerformanceTrackingCallback(const std::string &id) {
    base::utils::Utils::uninstallCallback<
        T, base::type::PerformanceTrackingCallbackPtr>(
        id, &m_performanceTrackingCallbacks);
  }

  template <typename T>
  inline T *performanceTrackingCallback(const std::string &id) {
    return base::utils::Utils::callback<
        T, base::type::PerformanceTrackingCallbackPtr>(
        id, &m_performanceTrackingCallbacks);
  }
#endif // defined(ELPP_FEATURE_ALL) ||
       // defined(ELPP_FEATURE_PERFORMANCE_TRACKING)

  /// @brief Sets thread name for current thread. Requires std::thread
  inline void setThreadName(const std::string &name) {
    if (name.empty())
      return;
    base::threading::ScopedLock scopedLock(m_threadNamesLock);
    m_threadNames[base::threading::getCurrentThreadId()] = name;
  }

  inline std::string getThreadName(const std::string &threadId) {
    base::threading::ScopedLock scopedLock(m_threadNamesLock);
    std::unordered_map<std::string, std::string>::const_iterator it =
        m_threadNames.find(threadId);
    if (it == m_threadNames.end()) {
      return threadId;
    }
    return it->second;
  }

private:
  base::RegisteredHitCounters *m_registeredHitCounters;
  base::RegisteredLoggers *m_registeredLoggers;
  base::type::EnumType m_flags;
  base::VRegistry *m_vRegistry;
#if ELPP_ASYNC_LOGGING
  base::AsyncLogQueue *m_asyncLogQueue;
  base::IWorker *m_asyncDispatchWorker;
#endif // ELPP_ASYNC_LOGGING
  base::utils::CommandLineArgs m_commandLineArgs;
  PreRollOutCallback m_preRollOutCallback;
  std::unordered_map<std::string, base::type::LogDispatchCallbackPtr>
      m_logDispatchCallbacks;
  std::unordered_map<std::string, base::type::PerformanceTrackingCallbackPtr>
      m_performanceTrackingCallbacks;
  std::unordered_map<std::string, std::string> m_threadNames;
  std::vector<CustomFormatSpecifier> m_customFormatSpecifiers;
  base::threading::Mutex m_customFormatSpecifiersLock;
  base::threading::Mutex m_threadNamesLock;
  Level m_loggingLevel;

  friend class el::Helpers;
  friend class el::base::DefaultLogDispatchCallback;
  friend class el::LogBuilder;
  friend class el::base::MessageBuilder;
  friend class el::base::Writer;
  friend class el::base::PerformanceTracker;
  friend class el::base::LogDispatcher;

  void setApplicationArguments(int argc, char **argv);

  inline void setApplicationArguments(int argc, const char **argv) {
    setApplicationArguments(argc, const_cast<char **>(argv));
  }
};
extern ELPP_EXPORT base::type::StoragePointer elStorage;
#define ELPP el::base::elStorage
class DefaultLogDispatchCallback : public LogDispatchCallback {
protected:
  void handle(const LogDispatchData *data);

private:
  const LogDispatchData *m_data;
  void dispatch(base::type::string_t &&logLine);
};
#if ELPP_ASYNC_LOGGING
class AsyncLogDispatchCallback : public LogDispatchCallback {
protected:
  void handle(const LogDispatchData *data);
};
class AsyncDispatchWorker : public base::IWorker,
                            public base::threading::ThreadSafe {
public:
  AsyncDispatchWorker();
  virtual ~AsyncDispatchWorker();

  bool clean(void);
  void emptyQueue(void);
  virtual void start(void);
  void handle(AsyncLogItem *logItem);
  void run(void);

  void setContinueRunning(bool value) {
    base::threading::ScopedLock scopedLock(m_continueRunningLock);
    m_continueRunning = value;
  }

  bool continueRunning(void) const { return m_continueRunning; }

private:
  std::condition_variable cv;
  bool m_continueRunning;
  base::threading::Mutex m_continueRunningLock;
};
#endif // ELPP_ASYNC_LOGGING
} // namespace base
namespace base {
class DefaultLogBuilder : public LogBuilder {
public:
  base::type::string_t build(const LogMessage *logMessage,
                             bool appendNewLine) const;
};
/// @brief Dispatches log messages
class LogDispatcher : base::NoCopy {
public:
  LogDispatcher(bool proceed, LogMessage *logMessage,
                base::DispatchAction dispatchAction)
      : m_proceed(proceed), m_logMessage(logMessage),
        m_dispatchAction(std::move(dispatchAction)) {}

  void dispatch(void);

private:
  bool m_proceed;
  LogMessage *m_logMessage;
  base::DispatchAction m_dispatchAction;
};
#if defined(ELPP_STL_LOGGING)
/// @brief Workarounds to write some STL logs
///
/// @detail There is workaround needed to loop through some stl containers. In
/// order to do that, we need iterable containers of same type and provide
/// iterator interface and pass it on to writeIterator(). Remember, this is
/// passed by value in constructor so that we dont change original containers.
/// This operation is as expensive as Big-O(std::min(class_.size(),
/// base::consts::kMaxLogPerContainer))
namespace workarounds {
/// @brief Abstract IterableContainer template that provides interface for
/// iterable classes of type T
template <typename T, typename Container> class IterableContainer {
public:
  typedef typename Container::iterator iterator;
  typedef typename Container::const_iterator const_iterator;
  IterableContainer(void) {}
  virtual ~IterableContainer(void) {}
  iterator begin(void) { return getContainer().begin(); }
  iterator end(void) { return getContainer().end(); }

private:
  virtual Container &getContainer(void) = 0;
};
/// @brief Implements IterableContainer and provides iterable
/// std::priority_queue class
template <typename T, typename Container = std::vector<T>,
          typename Comparator = std::less<typename Container::value_type>>
class IterablePriorityQueue
    : public IterableContainer<T, Container>,
      public std::priority_queue<T, Container, Comparator> {
public:
  IterablePriorityQueue(std::priority_queue<T, Container, Comparator> queue_) {
    std::size_t count_ = 0;
    while (++count_ < base::consts::kMaxLogPerContainer && !queue_.empty()) {
      this->push(queue_.top());
      queue_.pop();
    }
  }

private:
  inline Container &getContainer(void) { return this->c; }
};
/// @brief Implements IterableContainer and provides iterable std::queue class
template <typename T, typename Container = std::deque<T>>
class IterableQueue : public IterableContainer<T, Container>,
                      public std::queue<T, Container> {
public:
  IterableQueue(std::queue<T, Container> queue_) {
    std::size_t count_ = 0;
    while (++count_ < base::consts::kMaxLogPerContainer && !queue_.empty()) {
      this->push(queue_.front());
      queue_.pop();
    }
  }

private:
  inline Container &getContainer(void) { return this->c; }
};
/// @brief Implements IterableContainer and provides iterable std::stack class
template <typename T, typename Container = std::deque<T>>
class IterableStack : public IterableContainer<T, Container>,
                      public std::stack<T, Container> {
public:
  IterableStack(std::stack<T, Container> stack_) {
    std::size_t count_ = 0;
    while (++count_ < base::consts::kMaxLogPerContainer && !stack_.empty()) {
      this->push(stack_.top());
      stack_.pop();
    }
  }

private:
  inline Container &getContainer(void) { return this->c; }
};
} // namespace workarounds
#endif // defined(ELPP_STL_LOGGING)
// Log message builder
class MessageBuilder {
public:
  MessageBuilder(void)
      : m_logger(nullptr), m_containerLogSeparator(ELPP_LITERAL("")) {}
  void initialize(Logger *logger);

#define ELPP_SIMPLE_LOG(LOG_TYPE)                                              \
  MessageBuilder &operator<<(LOG_TYPE msg) {                                   \
    m_logger->stream() << msg;                                                 \
    if (ELPP->hasFlag(LoggingFlag::AutoSpacing)) {                             \
      m_logger->stream() << " ";                                               \
    }                                                                          \
    return *this;                                                              \
  }

  inline MessageBuilder &operator<<(const std::string &msg) {
    return operator<<(msg.c_str());
  }
  ELPP_SIMPLE_LOG(char)
  ELPP_SIMPLE_LOG(bool)
  ELPP_SIMPLE_LOG(signed short)
  ELPP_SIMPLE_LOG(unsigned short)
  ELPP_SIMPLE_LOG(signed int)
  ELPP_SIMPLE_LOG(unsigned int)
  ELPP_SIMPLE_LOG(signed long)
  ELPP_SIMPLE_LOG(unsigned long)
  ELPP_SIMPLE_LOG(float)
  ELPP_SIMPLE_LOG(double)
  ELPP_SIMPLE_LOG(char *)
  ELPP_SIMPLE_LOG(const char *)
  ELPP_SIMPLE_LOG(const void *)
  ELPP_SIMPLE_LOG(long double)
  inline MessageBuilder &operator<<(const std::wstring &msg) {
    return operator<<(msg.c_str());
  }
  MessageBuilder &operator<<(const wchar_t *msg);
  // ostream manipulators
  inline MessageBuilder &
  operator<<(std::ostream &(*OStreamMani)(std::ostream &)) {
    m_logger->stream() << OStreamMani;
    return *this;
  }
#define ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(temp)                              \
  template <typename T>                                                        \
  inline MessageBuilder &operator<<(const temp<T> &template_inst) {            \
    return writeIterator(template_inst.begin(), template_inst.end(),           \
                         template_inst.size());                                \
  }
#define ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(temp)                              \
  template <typename T1, typename T2>                                          \
  inline MessageBuilder &operator<<(const temp<T1, T2> &template_inst) {       \
    return writeIterator(template_inst.begin(), template_inst.end(),           \
                         template_inst.size());                                \
  }
#define ELPP_ITERATOR_CONTAINER_LOG_THREE_ARG(temp)                            \
  template <typename T1, typename T2, typename T3>                             \
  inline MessageBuilder &operator<<(const temp<T1, T2, T3> &template_inst) {   \
    return writeIterator(template_inst.begin(), template_inst.end(),           \
                         template_inst.size());                                \
  }
#define ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(temp)                             \
  template <typename T1, typename T2, typename T3, typename T4>                \
  inline MessageBuilder &operator<<(                                           \
      const temp<T1, T2, T3, T4> &template_inst) {                             \
    return writeIterator(template_inst.begin(), template_inst.end(),           \
                         template_inst.size());                                \
  }
#define ELPP_ITERATOR_CONTAINER_LOG_FIVE_ARG(temp)                             \
  template <typename T1, typename T2, typename T3, typename T4, typename T5>   \
  inline MessageBuilder &operator<<(                                           \
      const temp<T1, T2, T3, T4, T5> &template_inst) {                         \
    return writeIterator(template_inst.begin(), template_inst.end(),           \
                         template_inst.size());                                \
  }

#if defined(ELPP_STL_LOGGING)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(std::vector)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(std::list)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(std::deque)
  ELPP_ITERATOR_CONTAINER_LOG_THREE_ARG(std::set)
  ELPP_ITERATOR_CONTAINER_LOG_THREE_ARG(std::multiset)
  ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(std::map)
  ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(std::multimap)
  template <class T, class Container>
  inline MessageBuilder &operator<<(const std::queue<T, Container> &queue_) {
    base::workarounds::IterableQueue<T, Container> iterableQueue_ =
        static_cast<base::workarounds::IterableQueue<T, Container>>(queue_);
    return writeIterator(iterableQueue_.begin(), iterableQueue_.end(),
                         iterableQueue_.size());
  }
  template <class T, class Container>
  inline MessageBuilder &operator<<(const std::stack<T, Container> &stack_) {
    base::workarounds::IterableStack<T, Container> iterableStack_ =
        static_cast<base::workarounds::IterableStack<T, Container>>(stack_);
    return writeIterator(iterableStack_.begin(), iterableStack_.end(),
                         iterableStack_.size());
  }
  template <class T, class Container, class Comparator>
  inline MessageBuilder &operator<<(
      const std::priority_queue<T, Container, Comparator> &priorityQueue_) {
    base::workarounds::IterablePriorityQueue<T, Container, Comparator>
        iterablePriorityQueue_ = static_cast<
            base::workarounds::IterablePriorityQueue<T, Container, Comparator>>(
            priorityQueue_);
    return writeIterator(iterablePriorityQueue_.begin(),
                         iterablePriorityQueue_.end(),
                         iterablePriorityQueue_.size());
  }
  template <class First, class Second>
  MessageBuilder &operator<<(const std::pair<First, Second> &pair_) {
    m_logger->stream() << ELPP_LITERAL("(");
    operator<<(static_cast<First>(pair_.first));
    m_logger->stream() << ELPP_LITERAL(", ");
    operator<<(static_cast<Second>(pair_.second));
    m_logger->stream() << ELPP_LITERAL(")");
    return *this;
  }
  template <std::size_t Size>
  MessageBuilder &operator<<(const std::bitset<Size> &bitset_) {
    m_logger->stream() << ELPP_LITERAL("[");
    operator<<(bitset_.to_string());
    m_logger->stream() << ELPP_LITERAL("]");
    return *this;
  }
#if defined(ELPP_LOG_STD_ARRAY)
  template <class T, std::size_t Size>
  inline MessageBuilder &operator<<(const std::array<T, Size> &array) {
    return writeIterator(array.begin(), array.end(), array.size());
  }
#endif // defined(ELPP_LOG_STD_ARRAY)
#if defined(ELPP_LOG_UNORDERED_MAP)
  ELPP_ITERATOR_CONTAINER_LOG_FIVE_ARG(std::unordered_map)
  ELPP_ITERATOR_CONTAINER_LOG_FIVE_ARG(std::unordered_multimap)
#endif // defined(ELPP_LOG_UNORDERED_MAP)
#if defined(ELPP_LOG_UNORDERED_SET)
  ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(std::unordered_set)
  ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(std::unordered_multiset)
#endif // defined(ELPP_LOG_UNORDERED_SET)
#endif // defined(ELPP_STL_LOGGING)
#if defined(ELPP_QT_LOGGING)
  inline MessageBuilder &operator<<(const QString &msg) {
#if defined(ELPP_UNICODE)
    m_logger->stream() << msg.toStdWString();
#else
    m_logger->stream() << msg.toStdString();
#endif // defined(ELPP_UNICODE)
    return *this;
  }
  inline MessageBuilder &operator<<(const QByteArray &msg) {
    return operator<<(QString(msg));
  }
  inline MessageBuilder &operator<<(const QStringRef &msg) {
    return operator<<(msg.toString());
  }
  inline MessageBuilder &operator<<(qint64 msg) {
#if defined(ELPP_UNICODE)
    m_logger->stream() << QString::number(msg).toStdWString();
#else
    m_logger->stream() << QString::number(msg).toStdString();
#endif // defined(ELPP_UNICODE)
    return *this;
  }
  inline MessageBuilder &operator<<(quint64 msg) {
#if defined(ELPP_UNICODE)
    m_logger->stream() << QString::number(msg).toStdWString();
#else
    m_logger->stream() << QString::number(msg).toStdString();
#endif // defined(ELPP_UNICODE)
    return *this;
  }
  inline MessageBuilder &operator<<(QChar msg) {
    m_logger->stream() << msg.toLatin1();
    return *this;
  }
  inline MessageBuilder &operator<<(const QLatin1String &msg) {
    m_logger->stream() << msg.latin1();
    return *this;
  }
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(QList)
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(QVector)
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(QQueue)
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(QSet)
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(QLinkedList)
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(QStack)
  template <typename First, typename Second>
  MessageBuilder &operator<<(const QPair<First, Second> &pair_) {
    m_logger->stream() << ELPP_LITERAL("(");
    operator<<(static_cast<First>(pair_.first));
    m_logger->stream() << ELPP_LITERAL(", ");
    operator<<(static_cast<Second>(pair_.second));
    m_logger->stream() << ELPP_LITERAL(")");
    return *this;
  }
  template <typename K, typename V>
  MessageBuilder &operator<<(const QMap<K, V> &map_) {
    m_logger->stream() << ELPP_LITERAL("[");
    QList<K> keys = map_.keys();
    typename QList<K>::const_iterator begin = keys.begin();
    typename QList<K>::const_iterator end = keys.end();
    int max_ = static_cast<int>(
        base::consts::kMaxLogPerContainer); // to prevent warning
    for (int index_ = 0; begin != end && index_ < max_; ++index_, ++begin) {
      m_logger->stream() << ELPP_LITERAL("(");
      operator<<(static_cast<K>(*begin));
      m_logger->stream() << ELPP_LITERAL(", ");
      operator<<(static_cast<V>(map_.value(*begin)));
      m_logger->stream() << ELPP_LITERAL(")");
      m_logger->stream() << ((index_ < keys.size() - 1)
                                 ? m_containerLogSeparator
                                 : ELPP_LITERAL(""));
    }
    if (begin != end) {
      m_logger->stream() << ELPP_LITERAL("...");
    }
    m_logger->stream() << ELPP_LITERAL("]");
    return *this;
  }
  template <typename K, typename V>
  inline MessageBuilder &operator<<(const QMultiMap<K, V> &map_) {
    operator<<(static_cast<QMap<K, V>>(map_));
    return *this;
  }
  template <typename K, typename V>
  MessageBuilder &operator<<(const QHash<K, V> &hash_) {
    m_logger->stream() << ELPP_LITERAL("[");
    QList<K> keys = hash_.keys();
    typename QList<K>::const_iterator begin = keys.begin();
    typename QList<K>::const_iterator end = keys.end();
    int max_ = static_cast<int>(
        base::consts::kMaxLogPerContainer); // prevent type warning
    for (int index_ = 0; begin != end && index_ < max_; ++index_, ++begin) {
      m_logger->stream() << ELPP_LITERAL("(");
      operator<<(static_cast<K>(*begin));
      m_logger->stream() << ELPP_LITERAL(", ");
      operator<<(static_cast<V>(hash_.value(*begin)));
      m_logger->stream() << ELPP_LITERAL(")");
      m_logger->stream() << ((index_ < keys.size() - 1)
                                 ? m_containerLogSeparator
                                 : ELPP_LITERAL(""));
    }
    if (begin != end) {
      m_logger->stream() << ELPP_LITERAL("...");
    }
    m_logger->stream() << ELPP_LITERAL("]");
    return *this;
  }
  template <typename K, typename V>
  inline MessageBuilder &operator<<(const QMultiHash<K, V> &multiHash_) {
    operator<<(static_cast<QHash<K, V>>(multiHash_));
    return *this;
  }
#endif // defined(ELPP_QT_LOGGING)
#if defined(ELPP_BOOST_LOGGING)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(boost::container::vector)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(boost::container::stable_vector)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(boost::container::list)
  ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG(boost::container::deque)
  ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(boost::container::map)
  ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG(boost::container::flat_map)
  ELPP_ITERATOR_CONTAINER_LOG_THREE_ARG(boost::container::set)
  ELPP_ITERATOR_CONTAINER_LOG_THREE_ARG(boost::container::flat_set)
#endif // defined(ELPP_BOOST_LOGGING)

  /// @brief Macro used internally that can be used externally to make
  /// containers easylogging++ friendly
  ///
  /// @detail This macro expands to write an ostream& operator<< for container.
  /// This container is expected to
  ///         have begin() and end() methods that return respective iterators
  /// @param ContainerType Type of container e.g, MyList from
  /// WX_DECLARE_LIST(int, MyList); in wxwidgets
  /// @param SizeMethod Method used to get size of container.
  /// @param ElementInstance Instance of element to be fed out. Instance name is
  /// "elem". See WXELPP_ENABLED macro
  ///        for an example usage
#define MAKE_CONTAINERELPP_FRIENDLY(ContainerType, SizeMethod,                 \
                                    ElementInstance)                           \
  el::base::type::ostream_t &operator<<(el::base::type::ostream_t &ss,         \
                                        const ContainerType &container) {      \
    const el::base::type::char_t *sep =                                        \
        ELPP->hasFlag(el::LoggingFlag::NewLineForContainer)                    \
            ? ELPP_LITERAL("\n    ")                                           \
            : ELPP_LITERAL(", ");                                              \
    ContainerType::const_iterator elem = container.begin();                    \
    ContainerType::const_iterator endElem = container.end();                   \
    std::size_t size_ = container.SizeMethod;                                  \
    ss << ELPP_LITERAL("[");                                                   \
    for (std::size_t i = 0;                                                    \
         elem != endElem && i < el::base::consts::kMaxLogPerContainer;         \
         ++i, ++elem) {                                                        \
      ss << ElementInstance;                                                   \
      ss << ((i < size_ - 1) ? sep : ELPP_LITERAL(""));                        \
    }                                                                          \
    if (elem != endElem) {                                                     \
      ss << ELPP_LITERAL("...");                                               \
    }                                                                          \
    ss << ELPP_LITERAL("]");                                                   \
    return ss;                                                                 \
  }
#if defined(ELPP_WXWIDGETS_LOGGING)
  ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG(wxVector)
#define ELPP_WX_PTR_ENABLED(ContainerType)                                     \
  MAKE_CONTAINERELPP_FRIENDLY(ContainerType, size(), *(*elem))
#define ELPP_WX_ENABLED(ContainerType)                                         \
  MAKE_CONTAINERELPP_FRIENDLY(ContainerType, size(), (*elem))
#define ELPP_WX_HASH_MAP_ENABLED(ContainerType) MAKE_CONTAINERELPP_FRIENDLY(ContainerType, size(), \
ELPP_LITERAL("(") << elem->first << ELPP_LITERAL(", ") << elem->second << ELPP_LITERAL(")")
#else
#define ELPP_WX_PTR_ENABLED(ContainerType)
#define ELPP_WX_ENABLED(ContainerType)
#define ELPP_WX_HASH_MAP_ENABLED(ContainerType)
#endif // defined(ELPP_WXWIDGETS_LOGGING)
  // Other classes
  template <class Class>
  ELPP_SIMPLE_LOG(const Class &)
#undef ELPP_SIMPLE_LOG
#undef ELPP_ITERATOR_CONTAINER_LOG_ONE_ARG
#undef ELPP_ITERATOR_CONTAINER_LOG_TWO_ARG
#undef ELPP_ITERATOR_CONTAINER_LOG_THREE_ARG
#undef ELPP_ITERATOR_CONTAINER_LOG_FOUR_ARG
#undef ELPP_ITERATOR_CONTAINER_LOG_FIVE_ARG
  private : Logger *m_logger;
  const base::type::char_t *m_containerLogSeparator;

  template <class Iterator>
  MessageBuilder &writeIterator(Iterator begin_, Iterator end_,
                                std::size_t size_) {
    m_logger->stream() << ELPP_LITERAL("[");
    for (std::size_t i = 0;
         begin_ != end_ && i < base::consts::kMaxLogPerContainer;
         ++i, ++begin_) {
      operator<<(*begin_);
      m_logger->stream() << ((i < size_ - 1) ? m_containerLogSeparator
                                             : ELPP_LITERAL(""));
    }
    if (begin_ != end_) {
      m_logger->stream() << ELPP_LITERAL("...");
    }
    m_logger->stream() << ELPP_LITERAL("]");
    if (ELPP->hasFlag(LoggingFlag::AutoSpacing)) {
      m_logger->stream() << " ";
    }
    return *this;
  }
};
/// @brief Writes nothing - Used when certain log is disabled
class NullWriter : base::NoCopy {
public:
  NullWriter(void) {}

  // Null manipulator
  inline NullWriter &operator<<(std::ostream &(*)(std::ostream &)) {
    return *this;
  }

  template <typename T> inline NullWriter &operator<<(const T &) {
    return *this;
  }

  inline operator bool() { return true; }
};
/// @brief Main entry point of each logging
class Writer : base::NoCopy {
public:
  Writer(Level level, const char *file, base::type::LineNumber line,
         const char *func,
         base::DispatchAction dispatchAction = base::DispatchAction::NormalLog,
         base::type::VerboseLevel verboseLevel = 0)
      : m_msg(nullptr), m_level(level), m_file(file), m_line(line),
        m_func(func), m_verboseLevel(verboseLevel), m_logger(nullptr),
        m_proceed(false), m_dispatchAction(dispatchAction) {}

  Writer(LogMessage *msg,
         base::DispatchAction dispatchAction = base::DispatchAction::NormalLog)
      : m_msg(msg), m_level(msg != nullptr ? msg->level() : Level::Unknown),
        m_line(0), m_logger(nullptr), m_proceed(false),
        m_dispatchAction(dispatchAction) {}

  virtual ~Writer(void) { processDispatch(); }

  template <typename T> inline Writer &operator<<(const T &log) {
#if ELPP_LOGGING_ENABLED
    if (m_proceed) {
      m_messageBuilder << log;
    }
#endif // ELPP_LOGGING_ENABLED
    return *this;
  }

  inline Writer &operator<<(std::ostream &(*log)(std::ostream &)) {
#if ELPP_LOGGING_ENABLED
    if (m_proceed) {
      m_messageBuilder << log;
    }
#endif // ELPP_LOGGING_ENABLED
    return *this;
  }

  inline operator bool() { return true; }

  Writer &construct(Logger *logger, bool needLock = true);
  Writer &construct(int count, const char *loggerIds, ...);

protected:
  LogMessage *m_msg;
  Level m_level;
  const char *m_file;
  const base::type::LineNumber m_line;
  const char *m_func;
  base::type::VerboseLevel m_verboseLevel;
  Logger *m_logger;
  bool m_proceed;
  base::MessageBuilder m_messageBuilder;
  base::DispatchAction m_dispatchAction;
  std::vector<std::string> m_loggerIds;
  friend class el::Helpers;

  void initializeLogger(const std::string &loggerId, bool lookup = true,
                        bool needLock = true);
  void processDispatch();
  void triggerDispatch(void);
};
class PErrorWriter : public base::Writer {
public:
  PErrorWriter(
      Level level, const char *file, base::type::LineNumber line,
      const char *func,
      base::DispatchAction dispatchAction = base::DispatchAction::NormalLog,
      base::type::VerboseLevel verboseLevel = 0)
      : base::Writer(level, file, line, func, dispatchAction, verboseLevel) {}

  virtual ~PErrorWriter(void);
};
} // namespace base
// Logging from Logger class. Why this is here? Because we have Storage and
// Writer class available
#if ELPP_VARIADIC_TEMPLATES_SUPPORTED
template <typename T, typename... Args>
void Logger::log_(Level level, int vlevel, const char *s, const T &value,
                  const Args &...args) {
  base::MessageBuilder b;
  b.initialize(this);
  while (*s) {
    if (*s == base::consts::kFormatSpecifierChar) {
      if (*(s + 1) == base::consts::kFormatSpecifierChar) {
        ++s;
      } else {
        if (*(s + 1) == base::consts::kFormatSpecifierCharValue) {
          ++s;
          b << value;
          log_(level, vlevel, ++s, args...);
          return;
        }
      }
    }
    b << *s++;
  }
  ELPP_INTERNAL_ERROR("Too many arguments provided. Unable to handle. Please "
                      "provide more format specifiers",
                      false);
}
template <typename T> void Logger::log_(Level level, int vlevel, const T &log) {
  if (level == Level::Verbose) {
    if (ELPP->vRegistry()->allowed(vlevel, __FILE__)) {
      base::Writer(Level::Verbose, "FILE", 0, "FUNCTION",
                   base::DispatchAction::NormalLog, vlevel)
              .construct(this, false)
          << log;
    } else {
      stream().str(ELPP_LITERAL(""));
      releaseLock();
    }
  } else {
    base::Writer(level, "FILE", 0, "FUNCTION").construct(this, false) << log;
  }
}
template <typename T, typename... Args>
inline void Logger::log(Level level, const char *s, const T &value,
                        const Args &...args) {
  acquireLock(); // released in Writer!
  log_(level, 0, s, value, args...);
}
template <typename T> inline void Logger::log(Level level, const T &log) {
  acquireLock(); // released in Writer!
  log_(level, 0, log);
}
#if ELPP_VERBOSE_LOG
template <typename T, typename... Args>
inline void Logger::verbose(int vlevel, const char *s, const T &value,
                            const Args &...args) {
  acquireLock(); // released in Writer!
  log_(el::Level::Verbose, vlevel, s, value, args...);
}
template <typename T> inline void Logger::verbose(int vlevel, const T &log) {
  acquireLock(); // released in Writer!
  log_(el::Level::Verbose, vlevel, log);
}
#else
template <typename T, typename... Args>
inline void Logger::verbose(int, const char *, const T &, const Args &...) {
  return;
}
template <typename T> inline void Logger::verbose(int, const T &) { return; }
#endif // ELPP_VERBOSE_LOG
#define LOGGER_LEVEL_WRITERS(FUNCTION_NAME, LOG_LEVEL)                         \
  template <typename T, typename... Args>                                      \
  inline void Logger::FUNCTION_NAME(const char *s, const T &value,             \
                                    const Args &...args) {                     \
    log(LOG_LEVEL, s, value, args...);                                         \
  }                                                                            \
  template <typename T> inline void Logger::FUNCTION_NAME(const T &value) {    \
    log(LOG_LEVEL, value);                                                     \
  }
#define LOGGER_LEVEL_WRITERS_DISABLED(FUNCTION_NAME, LOG_LEVEL)                \
  template <typename T, typename... Args>                                      \
  inline void Logger::FUNCTION_NAME(const char *, const T &,                   \
                                    const Args &...) {                         \
    return;                                                                    \
  }                                                                            \
  template <typename T> inline void Logger::FUNCTION_NAME(const T &) { return; }

#if ELPP_INFO_LOG
LOGGER_LEVEL_WRITERS(info, Level::Info)
#else
LOGGER_LEVEL_WRITERS_DISABLED(info, Level::Info)
#endif // ELPP_INFO_LOG
#if ELPP_DEBUG_LOG
LOGGER_LEVEL_WRITERS(debug, Level::Debug)
#else
LOGGER_LEVEL_WRITERS_DISABLED(debug, Level::Debug)
#endif // ELPP_DEBUG_LOG
#if ELPP_WARNING_LOG
LOGGER_LEVEL_WRITERS(warn, Level::Warning)
#else
LOGGER_LEVEL_WRITERS_DISABLED(warn, Level::Warning)
#endif // ELPP_WARNING_LOG
#if ELPP_ERROR_LOG
LOGGER_LEVEL_WRITERS(error, Level::Error)
#else
LOGGER_LEVEL_WRITERS_DISABLED(error, Level::Error)
#endif // ELPP_ERROR_LOG
#if ELPP_FATAL_LOG
LOGGER_LEVEL_WRITERS(fatal, Level::Fatal)
#else
LOGGER_LEVEL_WRITERS_DISABLED(fatal, Level::Fatal)
#endif // ELPP_FATAL_LOG
#if ELPP_TRACE_LOG
LOGGER_LEVEL_WRITERS(trace, Level::Trace)
#else
LOGGER_LEVEL_WRITERS_DISABLED(trace, Level::Trace)
#endif // ELPP_TRACE_LOG
#undef LOGGER_LEVEL_WRITERS
#undef LOGGER_LEVEL_WRITERS_DISABLED
#endif // ELPP_VARIADIC_TEMPLATES_SUPPORTED
#if ELPP_COMPILER_MSVC
#define ELPP_VARIADIC_FUNC_MSVC(variadicFunction, variadicArgs)                \
  variadicFunction variadicArgs
#define ELPP_VARIADIC_FUNC_MSVC_RUN(variadicFunction, ...)                     \
  ELPP_VARIADIC_FUNC_MSVC(variadicFunction, (__VA_ARGS__))
#define el_getVALength(...)                                                    \
  ELPP_VARIADIC_FUNC_MSVC_RUN(el_resolveVALength, 0, ##__VA_ARGS__, 10, 9, 8,  \
                              7, 6, 5, 4, 3, 2, 1, 0)
#else
#if ELPP_COMPILER_CLANG
#define el_getVALength(...)                                                    \
  el_resolveVALength(0, __VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
#else
#define el_getVALength(...)                                                    \
  el_resolveVALength(0, ##__VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
#endif // ELPP_COMPILER_CLANG
#endif // ELPP_COMPILER_MSVC
#define el_resolveVALength(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N,     \
                           ...)                                                \
  N
#define ELPP_WRITE_LOG(writer, level, dispatchAction, ...)                     \
  writer(level, __FILE__, __LINE__, ELPP_FUNC, dispatchAction)                 \
      .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#define ELPP_WRITE_LOG_IF(writer, condition, level, dispatchAction, ...)       \
  if (condition)                                                               \
  writer(level, __FILE__, __LINE__, ELPP_FUNC, dispatchAction)                 \
      .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#define ELPP_WRITE_LOG_EVERY_N(writer, occasion, level, dispatchAction, ...)   \
  ELPP->validateEveryNCounter(__FILE__, __LINE__, occasion) &&                 \
      writer(level, __FILE__, __LINE__, ELPP_FUNC, dispatchAction)             \
          .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#define ELPP_WRITE_LOG_AFTER_N(writer, n, level, dispatchAction, ...)          \
  ELPP->validateAfterNCounter(__FILE__, __LINE__, n) &&                        \
      writer(level, __FILE__, __LINE__, ELPP_FUNC, dispatchAction)             \
          .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#define ELPP_WRITE_LOG_N_TIMES(writer, n, level, dispatchAction, ...)          \
  ELPP->validateNTimesCounter(__FILE__, __LINE__, n) &&                        \
      writer(level, __FILE__, __LINE__, ELPP_FUNC, dispatchAction)             \
          .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING)
class PerformanceTrackingData {
public:
  enum class DataType : base::type::EnumType { Checkpoint = 1, Complete = 2 };
  // Do not use constructor, will run into multiple definition error, use
  // init(PerformanceTracker*)
  explicit PerformanceTrackingData(DataType dataType)
      : m_performanceTracker(nullptr), m_dataType(dataType),
        m_firstCheckpoint(false), m_file(""), m_line(0), m_func("") {}
  inline const std::string *blockName(void) const;
  inline const struct timeval *startTime(void) const;
  inline const struct timeval *endTime(void) const;
  inline const struct timeval *lastCheckpointTime(void) const;
  inline const base::PerformanceTracker *performanceTracker(void) const {
    return m_performanceTracker;
  }
  inline PerformanceTrackingData::DataType dataType(void) const {
    return m_dataType;
  }
  inline bool firstCheckpoint(void) const { return m_firstCheckpoint; }
  inline std::string checkpointId(void) const { return m_checkpointId; }
  inline const char *file(void) const { return m_file; }
  inline base::type::LineNumber line(void) const { return m_line; }
  inline const char *func(void) const { return m_func; }
  inline const base::type::string_t *formattedTimeTaken() const {
    return &m_formattedTimeTaken;
  }
  inline const std::string &loggerId(void) const;

private:
  base::PerformanceTracker *m_performanceTracker;
  base::type::string_t m_formattedTimeTaken;
  PerformanceTrackingData::DataType m_dataType;
  bool m_firstCheckpoint;
  std::string m_checkpointId;
  const char *m_file;
  base::type::LineNumber m_line;
  const char *m_func;
  inline void init(base::PerformanceTracker *performanceTracker,
                   bool firstCheckpoint = false) {
    m_performanceTracker = performanceTracker;
    m_firstCheckpoint = firstCheckpoint;
  }

  friend class el::base::PerformanceTracker;
};
namespace base {
/// @brief Represents performanceTracker block of code that conditionally adds
/// performance status to log
///        either when goes outside the scope of when checkpoint() is called
class PerformanceTracker : public base::threading::ThreadSafe, public Loggable {
public:
  PerformanceTracker(
      const std::string &blockName,
      base::TimestampUnit timestampUnit = base::TimestampUnit::Millisecond,
      const std::string &loggerId =
          std::string(el::base::consts::kPerformanceLoggerId),
      bool scopedLog = true,
      Level level = base::consts::kPerformanceTrackerDefaultLevel);
  /// @brief Copy constructor
  PerformanceTracker(const PerformanceTracker &t)
      : m_blockName(t.m_blockName), m_timestampUnit(t.m_timestampUnit),
        m_loggerId(t.m_loggerId), m_scopedLog(t.m_scopedLog),
        m_level(t.m_level), m_hasChecked(t.m_hasChecked),
        m_lastCheckpointId(t.m_lastCheckpointId), m_enabled(t.m_enabled),
        m_startTime(t.m_startTime), m_endTime(t.m_endTime),
        m_lastCheckpointTime(t.m_lastCheckpointTime) {}
  virtual ~PerformanceTracker(void);
  /// @brief A checkpoint for current performanceTracker block.
  void checkpoint(const std::string &id = std::string(),
                  const char *file = __FILE__,
                  base::type::LineNumber line = __LINE__,
                  const char *func = "");
  inline Level level(void) const { return m_level; }

private:
  std::string m_blockName;
  base::TimestampUnit m_timestampUnit;
  std::string m_loggerId;
  bool m_scopedLog;
  Level m_level;
  bool m_hasChecked;
  std::string m_lastCheckpointId;
  bool m_enabled;
  struct timeval m_startTime, m_endTime, m_lastCheckpointTime;

  PerformanceTracker(void);

  friend class el::PerformanceTrackingData;
  friend class base::DefaultPerformanceTrackingCallback;

  const inline base::type::string_t getFormattedTimeTaken() const {
    return getFormattedTimeTaken(m_startTime);
  }

  const base::type::string_t
  getFormattedTimeTaken(struct timeval startTime) const;

  virtual inline void log(el::base::type::ostream_t &os) const {
    os << getFormattedTimeTaken();
  }
};
class DefaultPerformanceTrackingCallback : public PerformanceTrackingCallback {
protected:
  void handle(const PerformanceTrackingData *data) {
    m_data = data;
    base::type::stringstream_t ss;
    if (m_data->dataType() == PerformanceTrackingData::DataType::Complete) {
      ss << ELPP_LITERAL("Executed [") << m_data->blockName()->c_str()
         << ELPP_LITERAL("] in [") << *m_data->formattedTimeTaken()
         << ELPP_LITERAL("]");
    } else {
      ss << ELPP_LITERAL("Performance checkpoint");
      if (!m_data->checkpointId().empty()) {
        ss << ELPP_LITERAL(" [") << m_data->checkpointId().c_str()
           << ELPP_LITERAL("]");
      }
      ss << ELPP_LITERAL(" for block [") << m_data->blockName()->c_str()
         << ELPP_LITERAL("] : [") << *m_data->performanceTracker();
      if (!ELPP->hasFlag(
              LoggingFlag::DisablePerformanceTrackingCheckpointComparison) &&
          m_data->performanceTracker()->m_hasChecked) {
        ss << ELPP_LITERAL(" ([") << *m_data->formattedTimeTaken()
           << ELPP_LITERAL("] from ");
        if (m_data->performanceTracker()->m_lastCheckpointId.empty()) {
          ss << ELPP_LITERAL("last checkpoint");
        } else {
          ss << ELPP_LITERAL("checkpoint '")
             << m_data->performanceTracker()->m_lastCheckpointId.c_str()
             << ELPP_LITERAL("'");
        }
        ss << ELPP_LITERAL(")]");
      } else {
        ss << ELPP_LITERAL("]");
      }
    }
    el::base::Writer(m_data->performanceTracker()->level(), m_data->file(),
                     m_data->line(), m_data->func())
            .construct(1, m_data->loggerId().c_str())
        << ss.str();
  }

private:
  const PerformanceTrackingData *m_data;
};
} // namespace base
inline const std::string *PerformanceTrackingData::blockName() const {
  return const_cast<const std::string *>(&m_performanceTracker->m_blockName);
}
inline const struct timeval *PerformanceTrackingData::startTime() const {
  return const_cast<const struct timeval *>(&m_performanceTracker->m_startTime);
}
inline const struct timeval *PerformanceTrackingData::endTime() const {
  return const_cast<const struct timeval *>(&m_performanceTracker->m_endTime);
}
inline const struct timeval *
PerformanceTrackingData::lastCheckpointTime() const {
  return const_cast<const struct timeval *>(
      &m_performanceTracker->m_lastCheckpointTime);
}
inline const std::string &PerformanceTrackingData::loggerId(void) const {
  return m_performanceTracker->m_loggerId;
}
#endif // defined(ELPP_FEATURE_ALL) ||
       // defined(ELPP_FEATURE_PERFORMANCE_TRACKING)
namespace base {
/// @brief Contains some internal debugging tools like crash handler and stack
/// tracer
namespace debug {
#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG)
class StackTrace : base::NoCopy {
public:
  static const unsigned int kMaxStack = 64;
  static const unsigned int kStackStart =
      2; // We want to skip c'tor and StackTrace::generateNew()
  class StackTraceEntry {
  public:
    StackTraceEntry(std::size_t index, const std::string &loc,
                    const std::string &demang, const std::string &hex,
                    const std::string &addr);
    StackTraceEntry(std::size_t index, const std::string &loc)
        : m_index(index), m_location(loc) {}
    std::size_t m_index;
    std::string m_location;
    std::string m_demangled;
    std::string m_hex;
    std::string m_addr;
    friend std::ostream &operator<<(std::ostream &ss,
                                    const StackTraceEntry &si);

  private:
    StackTraceEntry(void);
  };

  StackTrace(void) { generateNew(); }

  virtual ~StackTrace(void) {}

  inline std::vector<StackTraceEntry> &getLatestStack(void) { return m_stack; }

  friend std::ostream &operator<<(std::ostream &os, const StackTrace &st);

private:
  std::vector<StackTraceEntry> m_stack;

  void generateNew(void);
};
/// @brief Handles unexpected crashes
class CrashHandler : base::NoCopy {
public:
  typedef void (*Handler)(int);

  explicit CrashHandler(bool useDefault);
  explicit CrashHandler(const Handler &cHandler) { setHandler(cHandler); }
  void setHandler(const Handler &cHandler);

private:
  Handler m_handler;
};
#else
class CrashHandler {
public:
  explicit CrashHandler(bool) {}
};
#endif // defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG)
} // namespace debug
} // namespace base
extern base::debug::CrashHandler elCrashHandler;
#define MAKE_LOGGABLE(ClassType, ClassInstance, OutputStreamInstance)          \
  el::base::type::ostream_t &operator<<(                                       \
      el::base::type::ostream_t &OutputStreamInstance,                         \
      const ClassType &ClassInstance)
/// @brief Initializes syslog with process ID, options and facility. calls
/// closelog() on d'tor
class SysLogInitializer {
public:
  SysLogInitializer(const char *processIdent, int options = 0,
                    int facility = 0) {
#if defined(ELPP_SYSLOG)
    (void)base::consts::kSysLogLoggerId;
    openlog(processIdent, options, facility);
#else
    ELPP_UNUSED(processIdent);
    ELPP_UNUSED(options);
    ELPP_UNUSED(facility);
#endif // defined(ELPP_SYSLOG)
  }
  virtual ~SysLogInitializer(void) {
#if defined(ELPP_SYSLOG)
    closelog();
#endif // defined(ELPP_SYSLOG)
  }
};
#define ELPP_INITIALIZE_SYSLOG(id, opt, fac)                                   \
  el::SysLogInitializer elSyslogInit(id, opt, fac)
/// @brief Static helpers for developers
class Helpers : base::StaticClass {
public:
  /// @brief Shares logging repository (base::Storage)
  static inline void setStorage(base::type::StoragePointer storage) {
    ELPP = storage;
  }
  /// @return Main storage repository
  static inline base::type::StoragePointer storage() { return ELPP; }
  /// @brief Sets application arguments and figures out whats active for logging
  /// and whats not.
  static inline void setArgs(int argc, char **argv) {
    ELPP->setApplicationArguments(argc, argv);
  }
  /// @copydoc setArgs(int argc, char** argv)
  static inline void setArgs(int argc, const char **argv) {
    ELPP->setApplicationArguments(argc, const_cast<char **>(argv));
  }
  /// @brief Sets thread name for current thread. Requires std::thread
  static inline void setThreadName(const std::string &name) {
    ELPP->setThreadName(name);
  }
  static inline std::string getThreadName() {
    return ELPP->getThreadName(base::threading::getCurrentThreadId());
  }
#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG)
  /// @brief Overrides default crash handler and installs custom handler.
  /// @param crashHandler A functor with no return type that takes single int
  /// argument.
  ///        Handler is a typedef with specification: void (*Handler)(int)
  static inline void
  setCrashHandler(const el::base::debug::CrashHandler::Handler &crashHandler) {
    el::elCrashHandler.setHandler(crashHandler);
  }
  /// @brief Abort due to crash with signal in parameter
  /// @param sig Crash signal
  static void crashAbort(int sig, const char *sourceFile = "",
                         unsigned int long line = 0);
  /// @brief Logs reason of crash as per sig
  /// @param sig Crash signal
  /// @param stackTraceIfAvailable Includes stack trace if available
  /// @param level Logging level
  /// @param logger Logger to use for logging
  static void
  logCrashReason(int sig, bool stackTraceIfAvailable = false,
                 Level level = Level::Fatal,
                 const char *logger = base::consts::kDefaultLoggerId);
#endif // defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG)
  /// @brief Installs pre rollout callback, this callback is triggered when log
  /// file is about to be rolled out
  ///        (can be useful for backing up)
  static inline void
  installPreRollOutCallback(const PreRollOutCallback &callback) {
    ELPP->setPreRollOutCallback(callback);
  }
  /// @brief Uninstalls pre rollout callback
  static inline void uninstallPreRollOutCallback(void) {
    ELPP->unsetPreRollOutCallback();
  }
  /// @brief Installs post log dispatch callback, this callback is triggered
  /// when log is dispatched
  template <typename T>
  static inline bool installLogDispatchCallback(const std::string &id) {
    return ELPP->installLogDispatchCallback<T>(id);
  }
  /// @brief Uninstalls log dispatch callback
  template <typename T>
  static inline void uninstallLogDispatchCallback(const std::string &id) {
    ELPP->uninstallLogDispatchCallback<T>(id);
  }
  template <typename T>
  static inline T *logDispatchCallback(const std::string &id) {
    return ELPP->logDispatchCallback<T>(id);
  }
#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING)
  /// @brief Installs post performance tracking callback, this callback is
  /// triggered when performance tracking is finished
  template <typename T>
  static inline bool installPerformanceTrackingCallback(const std::string &id) {
    return ELPP->installPerformanceTrackingCallback<T>(id);
  }
  /// @brief Uninstalls post performance tracking handler
  template <typename T>
  static inline void
  uninstallPerformanceTrackingCallback(const std::string &id) {
    ELPP->uninstallPerformanceTrackingCallback<T>(id);
  }
  template <typename T>
  static inline T *performanceTrackingCallback(const std::string &id) {
    return ELPP->performanceTrackingCallback<T>(id);
  }
#endif // defined(ELPP_FEATURE_ALL) ||
       // defined(ELPP_FEATURE_PERFORMANCE_TRACKING)
  /// @brief Converts template to std::string - useful for loggable classes to
  /// log containers within log(std::ostream&) const
  template <typename T>
  static std::string convertTemplateToStdString(const T &templ) {
    el::Logger *logger =
        ELPP->registeredLoggers()->get(el::base::consts::kDefaultLoggerId);
    if (logger == nullptr) {
      return std::string();
    }
    base::MessageBuilder b;
    b.initialize(logger);
    logger->acquireLock();
    b << templ;
#if defined(ELPP_UNICODE)
    std::string s = std::string(logger->stream().str().begin(),
                                logger->stream().str().end());
#else
    std::string s = logger->stream().str();
#endif // defined(ELPP_UNICODE)
    logger->stream().str(ELPP_LITERAL(""));
    logger->releaseLock();
    return s;
  }
  /// @brief Returns command line arguments (pointer) provided to easylogging++
  static inline const el::base::utils::CommandLineArgs *commandLineArgs(void) {
    return ELPP->commandLineArgs();
  }
  /// @brief Reserve space for custom format specifiers for performance
  /// @see std::vector::reserve
  static inline void reserveCustomFormatSpecifiers(std::size_t size) {
    ELPP->m_customFormatSpecifiers.reserve(size);
  }
  /// @brief Installs user defined format specifier and handler
  static inline void installCustomFormatSpecifier(
      const CustomFormatSpecifier &customFormatSpecifier) {
    ELPP->installCustomFormatSpecifier(customFormatSpecifier);
  }
  /// @brief Uninstalls user defined format specifier and handler
  static inline bool
  uninstallCustomFormatSpecifier(const char *formatSpecifier) {
    return ELPP->uninstallCustomFormatSpecifier(formatSpecifier);
  }
  /// @brief Returns true if custom format specifier is installed
  static inline bool hasCustomFormatSpecifier(const char *formatSpecifier) {
    return ELPP->hasCustomFormatSpecifier(formatSpecifier);
  }
  static inline void validateFileRolling(Logger *logger, Level level) {
    if (ELPP == nullptr || logger == nullptr)
      return;
    logger->m_typedConfigurations->validateFileRolling(
        level, ELPP->preRollOutCallback());
  }
};
/// @brief Static helpers to deal with loggers and their configurations
class Loggers : base::StaticClass {
public:
  /// @brief Gets existing or registers new logger
  static Logger *getLogger(const std::string &identity,
                           bool registerIfNotAvailable = true);
  /// @brief Changes default log builder for future loggers
  static void setDefaultLogBuilder(el::LogBuilderPtr &logBuilderPtr);
  /// @brief Installs logger registration callback, this callback is triggered
  /// when new logger is registered
  template <typename T>
  static inline bool installLoggerRegistrationCallback(const std::string &id) {
    return ELPP->registeredLoggers()->installLoggerRegistrationCallback<T>(id);
  }
  /// @brief Uninstalls log dispatch callback
  template <typename T>
  static inline void
  uninstallLoggerRegistrationCallback(const std::string &id) {
    ELPP->registeredLoggers()->uninstallLoggerRegistrationCallback<T>(id);
  }
  template <typename T>
  static inline T *loggerRegistrationCallback(const std::string &id) {
    return ELPP->registeredLoggers()->loggerRegistrationCallback<T>(id);
  }
  /// @brief Unregisters logger - use it only when you know what you are doing,
  /// you may unregister
  ///        loggers initialized / used by third-party libs.
  static bool unregisterLogger(const std::string &identity);
  /// @brief Whether or not logger with id is registered
  static bool hasLogger(const std::string &identity);
  /// @brief Reconfigures specified logger with new configurations
  static Logger *reconfigureLogger(Logger *logger,
                                   const Configurations &configurations);
  /// @brief Reconfigures logger with new configurations after looking it up
  /// using identity
  static Logger *reconfigureLogger(const std::string &identity,
                                   const Configurations &configurations);
  /// @brief Reconfigures logger's single configuration
  static Logger *reconfigureLogger(const std::string &identity,
                                   ConfigurationType configurationType,
                                   const std::string &value);
  /// @brief Reconfigures all the existing loggers with new configurations
  static void reconfigureAllLoggers(const Configurations &configurations);
  /// @brief Reconfigures single configuration for all the loggers
  static inline void reconfigureAllLoggers(ConfigurationType configurationType,
                                           const std::string &value) {
    reconfigureAllLoggers(Level::Global, configurationType, value);
  }
  /// @brief Reconfigures single configuration for all the loggers for specified
  /// level
  static void reconfigureAllLoggers(Level level,
                                    ConfigurationType configurationType,
                                    const std::string &value);
  /// @brief Sets default configurations. This configuration is used for future
  /// (and conditionally for existing) loggers
  static void setDefaultConfigurations(const Configurations &configurations,
                                       bool reconfigureExistingLoggers = false);
  /// @brief Returns current default
  static const Configurations *defaultConfigurations(void);
  /// @brief Returns log stream reference pointer if needed by user
  static const base::LogStreamsReferenceMapPtr logStreamsReference(void);
  /// @brief Default typed configuration based on existing defaultConf
  static base::TypedConfigurations defaultTypedConfigurations(void);
  /// @brief Populates all logger IDs in current repository.
  /// @param [out] targetList List of fill up.
  static std::vector<std::string> *
  populateAllLoggerIds(std::vector<std::string> *targetList);
  /// @brief Sets configurations from global configuration file.
  static void configureFromGlobal(const char *globalConfigurationFilePath);
  /// @brief Configures loggers using command line arg. Ensure you have already
  /// set command line args,
  /// @return False if invalid argument or argument with no value provided, true
  /// if attempted to configure logger.
  ///         If true is returned that does not mean it has been configured
  ///         successfully, it only means that it has attempted to configure
  ///         logger using configuration file provided in argument
  static bool configureFromArg(const char *argKey);
  /// @brief Flushes all loggers for all levels - Be careful if you dont know
  /// how many loggers are registered
  static void flushAll(void);
  /// @brief Adds logging flag used internally.
  static inline void addFlag(LoggingFlag flag) { ELPP->addFlag(flag); }
  /// @brief Removes logging flag used internally.
  static inline void removeFlag(LoggingFlag flag) { ELPP->removeFlag(flag); }
  /// @brief Determines whether or not certain flag is active
  static inline bool hasFlag(LoggingFlag flag) { return ELPP->hasFlag(flag); }
  /// @brief Adds flag and removes it when scope goes out
  class ScopedAddFlag {
  public:
    ScopedAddFlag(LoggingFlag flag) : m_flag(flag) { Loggers::addFlag(m_flag); }
    ~ScopedAddFlag(void) { Loggers::removeFlag(m_flag); }

  private:
    LoggingFlag m_flag;
  };
  /// @brief Removes flag and add it when scope goes out
  class ScopedRemoveFlag {
  public:
    ScopedRemoveFlag(LoggingFlag flag) : m_flag(flag) {
      Loggers::removeFlag(m_flag);
    }
    ~ScopedRemoveFlag(void) { Loggers::addFlag(m_flag); }

  private:
    LoggingFlag m_flag;
  };
  /// @brief Sets hierarchy for logging. Needs to enable logging flag
  /// (HierarchicalLogging)
  static void setLoggingLevel(Level level) { ELPP->setLoggingLevel(level); }
  /// @brief Sets verbose level on the fly
  static void setVerboseLevel(base::type::VerboseLevel level);
  /// @brief Gets current verbose level
  static base::type::VerboseLevel verboseLevel(void);
  /// @brief Sets vmodules as specified (on the fly)
  static void setVModules(const char *modules);
  /// @brief Clears vmodules
  static void clearVModules(void);
};
class VersionInfo : base::StaticClass {
public:
  /// @brief Current version number
  static const std::string version(void);

  /// @brief Release date of current version
  static const std::string releaseDate(void);
};
} // namespace el
#undef VLOG_IS_ON
/// @brief Determines whether verbose logging is on for specified level current
/// file.
#define VLOG_IS_ON(verboseLevel)                                               \
  (ELPP->vRegistry()->allowed(verboseLevel, __FILE__))
#undef TIMED_BLOCK
#undef TIMED_SCOPE
#undef TIMED_SCOPE_IF
#undef TIMED_FUNC
#undef TIMED_FUNC_IF
#undef ELPP_MIN_UNIT
#if defined(ELPP_PERFORMANCE_MICROSECONDS)
#define ELPP_MIN_UNIT el::base::TimestampUnit::Microsecond
#else
#define ELPP_MIN_UNIT el::base::TimestampUnit::Millisecond
#endif // (defined(ELPP_PERFORMANCE_MICROSECONDS))
/// @brief Performance tracked scope. Performance gets written when goes out of
/// scope using
///        'performance' logger.
///
/// @detail Please note in order to check the performance at a certain time you
/// can use obj->checkpoint();
/// @see el::base::PerformanceTracker
/// @see el::base::PerformanceTracker::checkpoint
// Note: Do not surround this definition with null macro because of obj instance
#define TIMED_SCOPE_IF(obj, blockname, condition)                              \
  el::base::type::PerformanceTrackerPtr obj(                                   \
      condition ? new el::base::PerformanceTracker(blockname, ELPP_MIN_UNIT)   \
                : nullptr)
#define TIMED_SCOPE(obj, blockname) TIMED_SCOPE_IF(obj, blockname, true)
#define TIMED_BLOCK(obj, blockName)                                            \
  for (struct {                                                                \
         int i;                                                                \
         el::base::type::PerformanceTrackerPtr timer;                          \
       } obj = {0,                                                             \
                el::base::type::PerformanceTrackerPtr(                         \
                    new el::base::PerformanceTracker(blockName,                \
                                                     ELPP_MIN_UNIT))};         \
       obj.i < 1; ++obj.i)
/// @brief Performance tracked function. Performance gets written when goes out
/// of scope using
///        'performance' logger.
///
/// @detail Please note in order to check the performance at a certain time you
/// can use obj->checkpoint();
/// @see el::base::PerformanceTracker
/// @see el::base::PerformanceTracker::checkpoint
#define TIMED_FUNC_IF(obj, condition) TIMED_SCOPE_IF(obj, ELPP_FUNC, condition)
#define TIMED_FUNC(obj) TIMED_SCOPE(obj, ELPP_FUNC)
#undef PERFORMANCE_CHECKPOINT
#undef PERFORMANCE_CHECKPOINT_WITH_ID
#define PERFORMANCE_CHECKPOINT(obj)                                            \
  obj->checkpoint(std::string(), __FILE__, __LINE__, ELPP_FUNC)
#define PERFORMANCE_CHECKPOINT_WITH_ID(obj, id)                                \
  obj->checkpoint(id, __FILE__, __LINE__, ELPP_FUNC)
#undef ELPP_COUNTER
#undef ELPP_COUNTER_POS
/// @brief Gets hit counter for file/line
#define ELPP_COUNTER (ELPP->hitCounters()->getCounter(__FILE__, __LINE__))
/// @brief Gets hit counter position for file/line, -1 if not registered yet
#define ELPP_COUNTER_POS                                                       \
  (ELPP_COUNTER == nullptr ? -1 : ELPP_COUNTER->hitCounts())
// Undef levels to support LOG(LEVEL)
#undef INFO
#undef WARNING
#undef DEBUG
#undef ERROR
#undef FATAL
#undef TRACE
#undef VERBOSE
// Undef existing
#undef CINFO
#undef CWARNING
#undef CDEBUG
#undef CFATAL
#undef CERROR
#undef CTRACE
#undef CVERBOSE
#undef CINFO_IF
#undef CWARNING_IF
#undef CDEBUG_IF
#undef CERROR_IF
#undef CFATAL_IF
#undef CTRACE_IF
#undef CVERBOSE_IF
#undef CINFO_EVERY_N
#undef CWARNING_EVERY_N
#undef CDEBUG_EVERY_N
#undef CERROR_EVERY_N
#undef CFATAL_EVERY_N
#undef CTRACE_EVERY_N
#undef CVERBOSE_EVERY_N
#undef CINFO_AFTER_N
#undef CWARNING_AFTER_N
#undef CDEBUG_AFTER_N
#undef CERROR_AFTER_N
#undef CFATAL_AFTER_N
#undef CTRACE_AFTER_N
#undef CVERBOSE_AFTER_N
#undef CINFO_N_TIMES
#undef CWARNING_N_TIMES
#undef CDEBUG_N_TIMES
#undef CERROR_N_TIMES
#undef CFATAL_N_TIMES
#undef CTRACE_N_TIMES
#undef CVERBOSE_N_TIMES
// Normal logs
#if ELPP_INFO_LOG
#define CINFO(writer, dispatchAction, ...)                                     \
  ELPP_WRITE_LOG(writer, el::Level::Info, dispatchAction, __VA_ARGS__)
#else
#define CINFO(writer, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_INFO_LOG
#if ELPP_WARNING_LOG
#define CWARNING(writer, dispatchAction, ...)                                  \
  ELPP_WRITE_LOG(writer, el::Level::Warning, dispatchAction, __VA_ARGS__)
#else
#define CWARNING(writer, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_WARNING_LOG
#if ELPP_DEBUG_LOG
#define CDEBUG(writer, dispatchAction, ...)                                    \
  ELPP_WRITE_LOG(writer, el::Level::Debug, dispatchAction, __VA_ARGS__)
#else
#define CDEBUG(writer, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_DEBUG_LOG
#if ELPP_ERROR_LOG
#define CERROR(writer, dispatchAction, ...)                                    \
  ELPP_WRITE_LOG(writer, el::Level::Error, dispatchAction, __VA_ARGS__)
#else
#define CERROR(writer, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_ERROR_LOG
#if ELPP_FATAL_LOG
#define CFATAL(writer, dispatchAction, ...)                                    \
  ELPP_WRITE_LOG(writer, el::Level::Fatal, dispatchAction, __VA_ARGS__)
#else
#define CFATAL(writer, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_FATAL_LOG
#if ELPP_TRACE_LOG
#define CTRACE(writer, dispatchAction, ...)                                    \
  ELPP_WRITE_LOG(writer, el::Level::Trace, dispatchAction, __VA_ARGS__)
#else
#define CTRACE(writer, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_TRACE_LOG
#if ELPP_VERBOSE_LOG
#define CVERBOSE(writer, vlevel, dispatchAction, ...)                          \
  if (VLOG_IS_ON(vlevel))                                                      \
  writer(el::Level::Verbose, __FILE__, __LINE__, ELPP_FUNC, dispatchAction,    \
         vlevel)                                                               \
      .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#else
#define CVERBOSE(writer, vlevel, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_VERBOSE_LOG
// Conditional logs
#if ELPP_INFO_LOG
#define CINFO_IF(writer, condition_, dispatchAction, ...)                      \
  ELPP_WRITE_LOG_IF(writer, (condition_), el::Level::Info, dispatchAction,     \
                    __VA_ARGS__)
#else
#define CINFO_IF(writer, condition_, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_INFO_LOG
#if ELPP_WARNING_LOG
#define CWARNING_IF(writer, condition_, dispatchAction, ...)                   \
  ELPP_WRITE_LOG_IF(writer, (condition_), el::Level::Warning, dispatchAction,  \
                    __VA_ARGS__)
#else
#define CWARNING_IF(writer, condition_, dispatchAction, ...)                   \
  el::base::NullWriter()
#endif // ELPP_WARNING_LOG
#if ELPP_DEBUG_LOG
#define CDEBUG_IF(writer, condition_, dispatchAction, ...)                     \
  ELPP_WRITE_LOG_IF(writer, (condition_), el::Level::Debug, dispatchAction,    \
                    __VA_ARGS__)
#else
#define CDEBUG_IF(writer, condition_, dispatchAction, ...)                     \
  el::base::NullWriter()
#endif // ELPP_DEBUG_LOG
#if ELPP_ERROR_LOG
#define CERROR_IF(writer, condition_, dispatchAction, ...)                     \
  ELPP_WRITE_LOG_IF(writer, (condition_), el::Level::Error, dispatchAction,    \
                    __VA_ARGS__)
#else
#define CERROR_IF(writer, condition_, dispatchAction, ...)                     \
  el::base::NullWriter()
#endif // ELPP_ERROR_LOG
#if ELPP_FATAL_LOG
#define CFATAL_IF(writer, condition_, dispatchAction, ...)                     \
  ELPP_WRITE_LOG_IF(writer, (condition_), el::Level::Fatal, dispatchAction,    \
                    __VA_ARGS__)
#else
#define CFATAL_IF(writer, condition_, dispatchAction, ...)                     \
  el::base::NullWriter()
#endif // ELPP_FATAL_LOG
#if ELPP_TRACE_LOG
#define CTRACE_IF(writer, condition_, dispatchAction, ...)                     \
  ELPP_WRITE_LOG_IF(writer, (condition_), el::Level::Trace, dispatchAction,    \
                    __VA_ARGS__)
#else
#define CTRACE_IF(writer, condition_, dispatchAction, ...)                     \
  el::base::NullWriter()
#endif // ELPP_TRACE_LOG
#if ELPP_VERBOSE_LOG
#define CVERBOSE_IF(writer, condition_, vlevel, dispatchAction, ...)           \
  if (VLOG_IS_ON(vlevel) && (condition_))                                      \
  writer(el::Level::Verbose, __FILE__, __LINE__, ELPP_FUNC, dispatchAction,    \
         vlevel)                                                               \
      .construct(el_getVALength(__VA_ARGS__), __VA_ARGS__)
#else
#define CVERBOSE_IF(writer, condition_, vlevel, dispatchAction, ...)           \
  el::base::NullWriter()
#endif // ELPP_VERBOSE_LOG
// Occasional logs
#if ELPP_INFO_LOG
#define CINFO_EVERY_N(writer, occasion, dispatchAction, ...)                   \
  ELPP_WRITE_LOG_EVERY_N(writer, occasion, el::Level::Info, dispatchAction,    \
                         __VA_ARGS__)
#else
#define CINFO_EVERY_N(writer, occasion, dispatchAction, ...)                   \
  el::base::NullWriter()
#endif // ELPP_INFO_LOG
#if ELPP_WARNING_LOG
#define CWARNING_EVERY_N(writer, occasion, dispatchAction, ...)                \
  ELPP_WRITE_LOG_EVERY_N(writer, occasion, el::Level::Warning, dispatchAction, \
                         __VA_ARGS__)
#else
#define CWARNING_EVERY_N(writer, occasion, dispatchAction, ...)                \
  el::base::NullWriter()
#endif // ELPP_WARNING_LOG
#if ELPP_DEBUG_LOG
#define CDEBUG_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  ELPP_WRITE_LOG_EVERY_N(writer, occasion, el::Level::Debug, dispatchAction,   \
                         __VA_ARGS__)
#else
#define CDEBUG_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  el::base::NullWriter()
#endif // ELPP_DEBUG_LOG
#if ELPP_ERROR_LOG
#define CERROR_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  ELPP_WRITE_LOG_EVERY_N(writer, occasion, el::Level::Error, dispatchAction,   \
                         __VA_ARGS__)
#else
#define CERROR_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  el::base::NullWriter()
#endif // ELPP_ERROR_LOG
#if ELPP_FATAL_LOG
#define CFATAL_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  ELPP_WRITE_LOG_EVERY_N(writer, occasion, el::Level::Fatal, dispatchAction,   \
                         __VA_ARGS__)
#else
#define CFATAL_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  el::base::NullWriter()
#endif // ELPP_FATAL_LOG
#if ELPP_TRACE_LOG
#define CTRACE_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  ELPP_WRITE_LOG_EVERY_N(writer, occasion, el::Level::Trace, dispatchAction,   \
                         __VA_ARGS__)
#else
#define CTRACE_EVERY_N(writer, occasion, dispatchAction, ...)                  \
  el::base::NullWriter()
#endif // ELPP_TRACE_LOG
#if ELPP_VERBOSE_LOG
#define CVERBOSE_EVERY_N(writer, occasion, vlevel, dispatchAction, ...)        \
  CVERBOSE_IF(writer,                                                          \
              ELPP->validateEveryNCounter(__FILE__, __LINE__, occasion),       \
              vlevel, dispatchAction, __VA_ARGS__)
#else
#define CVERBOSE_EVERY_N(writer, occasion, vlevel, dispatchAction, ...)        \
  el::base::NullWriter()
#endif // ELPP_VERBOSE_LOG
// After N logs
#if ELPP_INFO_LOG
#define CINFO_AFTER_N(writer, n, dispatchAction, ...)                          \
  ELPP_WRITE_LOG_AFTER_N(writer, n, el::Level::Info, dispatchAction,           \
                         __VA_ARGS__)
#else
#define CINFO_AFTER_N(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_INFO_LOG
#if ELPP_WARNING_LOG
#define CWARNING_AFTER_N(writer, n, dispatchAction, ...)                       \
  ELPP_WRITE_LOG_AFTER_N(writer, n, el::Level::Warning, dispatchAction,        \
                         __VA_ARGS__)
#else
#define CWARNING_AFTER_N(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_WARNING_LOG
#if ELPP_DEBUG_LOG
#define CDEBUG_AFTER_N(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_AFTER_N(writer, n, el::Level::Debug, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CDEBUG_AFTER_N(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_DEBUG_LOG
#if ELPP_ERROR_LOG
#define CERROR_AFTER_N(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_AFTER_N(writer, n, el::Level::Error, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CERROR_AFTER_N(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_ERROR_LOG
#if ELPP_FATAL_LOG
#define CFATAL_AFTER_N(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_AFTER_N(writer, n, el::Level::Fatal, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CFATAL_AFTER_N(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_FATAL_LOG
#if ELPP_TRACE_LOG
#define CTRACE_AFTER_N(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_AFTER_N(writer, n, el::Level::Trace, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CTRACE_AFTER_N(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_TRACE_LOG
#if ELPP_VERBOSE_LOG
#define CVERBOSE_AFTER_N(writer, n, vlevel, dispatchAction, ...)               \
  CVERBOSE_IF(writer, ELPP->validateAfterNCounter(__FILE__, __LINE__, n),      \
              vlevel, dispatchAction, __VA_ARGS__)
#else
#define CVERBOSE_AFTER_N(writer, n, vlevel, dispatchAction, ...)               \
  el::base::NullWriter()
#endif // ELPP_VERBOSE_LOG
// N Times logs
#if ELPP_INFO_LOG
#define CINFO_N_TIMES(writer, n, dispatchAction, ...)                          \
  ELPP_WRITE_LOG_N_TIMES(writer, n, el::Level::Info, dispatchAction,           \
                         __VA_ARGS__)
#else
#define CINFO_N_TIMES(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_INFO_LOG
#if ELPP_WARNING_LOG
#define CWARNING_N_TIMES(writer, n, dispatchAction, ...)                       \
  ELPP_WRITE_LOG_N_TIMES(writer, n, el::Level::Warning, dispatchAction,        \
                         __VA_ARGS__)
#else
#define CWARNING_N_TIMES(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_WARNING_LOG
#if ELPP_DEBUG_LOG
#define CDEBUG_N_TIMES(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_N_TIMES(writer, n, el::Level::Debug, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CDEBUG_N_TIMES(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_DEBUG_LOG
#if ELPP_ERROR_LOG
#define CERROR_N_TIMES(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_N_TIMES(writer, n, el::Level::Error, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CERROR_N_TIMES(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_ERROR_LOG
#if ELPP_FATAL_LOG
#define CFATAL_N_TIMES(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_N_TIMES(writer, n, el::Level::Fatal, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CFATAL_N_TIMES(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_FATAL_LOG
#if ELPP_TRACE_LOG
#define CTRACE_N_TIMES(writer, n, dispatchAction, ...)                         \
  ELPP_WRITE_LOG_N_TIMES(writer, n, el::Level::Trace, dispatchAction,          \
                         __VA_ARGS__)
#else
#define CTRACE_N_TIMES(writer, n, dispatchAction, ...) el::base::NullWriter()
#endif // ELPP_TRACE_LOG
#if ELPP_VERBOSE_LOG
#define CVERBOSE_N_TIMES(writer, n, vlevel, dispatchAction, ...)               \
  CVERBOSE_IF(writer, ELPP->validateNTimesCounter(__FILE__, __LINE__, n),      \
              vlevel, dispatchAction, __VA_ARGS__)
#else
#define CVERBOSE_N_TIMES(writer, n, vlevel, dispatchAction, ...)               \
  el::base::NullWriter()
#endif // ELPP_VERBOSE_LOG
//
// Custom Loggers - Requires (level, dispatchAction, loggerId/s)
//
// undef existing
#undef CLOG
#undef CLOG_VERBOSE
#undef CVLOG
#undef CLOG_IF
#undef CLOG_VERBOSE_IF
#undef CVLOG_IF
#undef CLOG_EVERY_N
#undef CVLOG_EVERY_N
#undef CLOG_AFTER_N
#undef CVLOG_AFTER_N
#undef CLOG_N_TIMES
#undef CVLOG_N_TIMES
// Normal logs
#define CLOG(LEVEL, ...)                                                       \
  C##LEVEL(el::base::Writer, el::base::DispatchAction::NormalLog, __VA_ARGS__)
#define CVLOG(vlevel, ...)                                                     \
  CVERBOSE(el::base::Writer, vlevel, el::base::DispatchAction::NormalLog,      \
           __VA_ARGS__)
// Conditional logs
#define CLOG_IF(condition, LEVEL, ...)                                         \
  C##LEVEL##_IF(el::base::Writer, condition,                                   \
                el::base::DispatchAction::NormalLog, __VA_ARGS__)
#define CVLOG_IF(condition, vlevel, ...)                                       \
  CVERBOSE_IF(el::base::Writer, condition, vlevel,                             \
              el::base::DispatchAction::NormalLog, __VA_ARGS__)
// Hit counts based logs
#define CLOG_EVERY_N(n, LEVEL, ...)                                            \
  C##LEVEL##_EVERY_N(el::base::Writer, n, el::base::DispatchAction::NormalLog, \
                     __VA_ARGS__)
#define CVLOG_EVERY_N(n, vlevel, ...)                                          \
  CVERBOSE_EVERY_N(el::base::Writer, n, vlevel,                                \
                   el::base::DispatchAction::NormalLog, __VA_ARGS__)
#define CLOG_AFTER_N(n, LEVEL, ...)                                            \
  C##LEVEL##_AFTER_N(el::base::Writer, n, el::base::DispatchAction::NormalLog, \
                     __VA_ARGS__)
#define CVLOG_AFTER_N(n, vlevel, ...)                                          \
  CVERBOSE_AFTER_N(el::base::Writer, n, vlevel,                                \
                   el::base::DispatchAction::NormalLog, __VA_ARGS__)
#define CLOG_N_TIMES(n, LEVEL, ...)                                            \
  C##LEVEL##_N_TIMES(el::base::Writer, n, el::base::DispatchAction::NormalLog, \
                     __VA_ARGS__)
#define CVLOG_N_TIMES(n, vlevel, ...)                                          \
  CVERBOSE_N_TIMES(el::base::Writer, n, vlevel,                                \
                   el::base::DispatchAction::NormalLog, __VA_ARGS__)
//
// Default Loggers macro using CLOG(), CLOG_VERBOSE() and CVLOG() macros
//
// undef existing
#undef LOG
#undef VLOG
#undef LOG_IF
#undef VLOG_IF
#undef LOG_EVERY_N
#undef VLOG_EVERY_N
#undef LOG_AFTER_N
#undef VLOG_AFTER_N
#undef LOG_N_TIMES
#undef VLOG_N_TIMES
#undef ELPP_CURR_FILE_LOGGER_ID
#if defined(ELPP_DEFAULT_LOGGER)
#define ELPP_CURR_FILE_LOGGER_ID ELPP_DEFAULT_LOGGER
#else
#define ELPP_CURR_FILE_LOGGER_ID el::base::consts::kDefaultLoggerId
#endif
#undef ELPP_TRACE
#define ELPP_TRACE CLOG(TRACE, ELPP_CURR_FILE_LOGGER_ID)
// Normal logs
#define LOG(LEVEL) CLOG(LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define VLOG(vlevel) CVLOG(vlevel, ELPP_CURR_FILE_LOGGER_ID)
// Conditional logs
#define LOG_IF(condition, LEVEL)                                               \
  CLOG_IF(condition, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define VLOG_IF(condition, vlevel)                                             \
  CVLOG_IF(condition, vlevel, ELPP_CURR_FILE_LOGGER_ID)
// Hit counts based logs
#define LOG_EVERY_N(n, LEVEL) CLOG_EVERY_N(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define VLOG_EVERY_N(n, vlevel)                                                \
  CVLOG_EVERY_N(n, vlevel, ELPP_CURR_FILE_LOGGER_ID)
#define LOG_AFTER_N(n, LEVEL) CLOG_AFTER_N(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define VLOG_AFTER_N(n, vlevel)                                                \
  CVLOG_AFTER_N(n, vlevel, ELPP_CURR_FILE_LOGGER_ID)
#define LOG_N_TIMES(n, LEVEL) CLOG_N_TIMES(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define VLOG_N_TIMES(n, vlevel)                                                \
  CVLOG_N_TIMES(n, vlevel, ELPP_CURR_FILE_LOGGER_ID)
// Generic PLOG()
#undef CPLOG
#undef CPLOG_IF
#undef PLOG
#undef PLOG_IF
#undef DCPLOG
#undef DCPLOG_IF
#undef DPLOG
#undef DPLOG_IF
#define CPLOG(LEVEL, ...)                                                      \
  C##LEVEL(el::base::PErrorWriter, el::base::DispatchAction::NormalLog,        \
           __VA_ARGS__)
#define CPLOG_IF(condition, LEVEL, ...)                                        \
  C##LEVEL##_IF(el::base::PErrorWriter, condition,                             \
                el::base::DispatchAction::NormalLog, __VA_ARGS__)
#define DCPLOG(LEVEL, ...)                                                     \
  if (ELPP_DEBUG_LOG)                                                          \
  C##LEVEL(el::base::PErrorWriter, el::base::DispatchAction::NormalLog,        \
           __VA_ARGS__)
#define DCPLOG_IF(condition, LEVEL, ...)                                       \
  C##LEVEL##_IF(el::base::PErrorWriter, (ELPP_DEBUG_LOG) && (condition),       \
                el::base::DispatchAction::NormalLog, __VA_ARGS__)
#define PLOG(LEVEL) CPLOG(LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define PLOG_IF(condition, LEVEL)                                              \
  CPLOG_IF(condition, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DPLOG(LEVEL) DCPLOG(LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DPLOG_IF(condition, LEVEL)                                             \
  DCPLOG_IF(condition, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
// Generic SYSLOG()
#undef CSYSLOG
#undef CSYSLOG_IF
#undef CSYSLOG_EVERY_N
#undef CSYSLOG_AFTER_N
#undef CSYSLOG_N_TIMES
#undef SYSLOG
#undef SYSLOG_IF
#undef SYSLOG_EVERY_N
#undef SYSLOG_AFTER_N
#undef SYSLOG_N_TIMES
#undef DCSYSLOG
#undef DCSYSLOG_IF
#undef DCSYSLOG_EVERY_N
#undef DCSYSLOG_AFTER_N
#undef DCSYSLOG_N_TIMES
#undef DSYSLOG
#undef DSYSLOG_IF
#undef DSYSLOG_EVERY_N
#undef DSYSLOG_AFTER_N
#undef DSYSLOG_N_TIMES
#if defined(ELPP_SYSLOG)
#define CSYSLOG(LEVEL, ...)                                                    \
  C##LEVEL(el::base::Writer, el::base::DispatchAction::SysLog, __VA_ARGS__)
#define CSYSLOG_IF(condition, LEVEL, ...)                                      \
  C##LEVEL##_IF(el::base::Writer, condition, el::base::DispatchAction::SysLog, \
                __VA_ARGS__)
#define CSYSLOG_EVERY_N(n, LEVEL, ...)                                         \
  C##LEVEL##_EVERY_N(el::base::Writer, n, el::base::DispatchAction::SysLog,    \
                     __VA_ARGS__)
#define CSYSLOG_AFTER_N(n, LEVEL, ...)                                         \
  C##LEVEL##_AFTER_N(el::base::Writer, n, el::base::DispatchAction::SysLog,    \
                     __VA_ARGS__)
#define CSYSLOG_N_TIMES(n, LEVEL, ...)                                         \
  C##LEVEL##_N_TIMES(el::base::Writer, n, el::base::DispatchAction::SysLog,    \
                     __VA_ARGS__)
#define SYSLOG(LEVEL) CSYSLOG(LEVEL, el::base::consts::kSysLogLoggerId)
#define SYSLOG_IF(condition, LEVEL)                                            \
  CSYSLOG_IF(condition, LEVEL, el::base::consts::kSysLogLoggerId)
#define SYSLOG_EVERY_N(n, LEVEL)                                               \
  CSYSLOG_EVERY_N(n, LEVEL, el::base::consts::kSysLogLoggerId)
#define SYSLOG_AFTER_N(n, LEVEL)                                               \
  CSYSLOG_AFTER_N(n, LEVEL, el::base::consts::kSysLogLoggerId)
#define SYSLOG_N_TIMES(n, LEVEL)                                               \
  CSYSLOG_N_TIMES(n, LEVEL, el::base::consts::kSysLogLoggerId)
#define DCSYSLOG(LEVEL, ...)                                                   \
  if (ELPP_DEBUG_LOG)                                                          \
  C##LEVEL(el::base::Writer, el::base::DispatchAction::SysLog, __VA_ARGS__)
#define DCSYSLOG_IF(condition, LEVEL, ...)                                     \
  C##LEVEL##_IF(el::base::Writer, (ELPP_DEBUG_LOG) && (condition),             \
                el::base::DispatchAction::SysLog, __VA_ARGS__)
#define DCSYSLOG_EVERY_N(n, LEVEL, ...)                                        \
  if (ELPP_DEBUG_LOG)                                                          \
  C##LEVEL##_EVERY_N(el::base::Writer, n, el::base::DispatchAction::SysLog,    \
                     __VA_ARGS__)
#define DCSYSLOG_AFTER_N(n, LEVEL, ...)                                        \
  if (ELPP_DEBUG_LOG)                                                          \
  C##LEVEL##_AFTER_N(el::base::Writer, n, el::base::DispatchAction::SysLog,    \
                     __VA_ARGS__)
#define DCSYSLOG_N_TIMES(n, LEVEL, ...)                                        \
  if (ELPP_DEBUG_LOG)                                                          \
  C##LEVEL##_EVERY_N(el::base::Writer, n, el::base::DispatchAction::SysLog,    \
                     __VA_ARGS__)
#define DSYSLOG(LEVEL) DCSYSLOG(LEVEL, el::base::consts::kSysLogLoggerId)
#define DSYSLOG_IF(condition, LEVEL)                                           \
  DCSYSLOG_IF(condition, LEVEL, el::base::consts::kSysLogLoggerId)
#define DSYSLOG_EVERY_N(n, LEVEL)                                              \
  DCSYSLOG_EVERY_N(n, LEVEL, el::base::consts::kSysLogLoggerId)
#define DSYSLOG_AFTER_N(n, LEVEL)                                              \
  DCSYSLOG_AFTER_N(n, LEVEL, el::base::consts::kSysLogLoggerId)
#define DSYSLOG_N_TIMES(n, LEVEL)                                              \
  DCSYSLOG_N_TIMES(n, LEVEL, el::base::consts::kSysLogLoggerId)
#else
#define CSYSLOG(LEVEL, ...) el::base::NullWriter()
#define CSYSLOG_IF(condition, LEVEL, ...) el::base::NullWriter()
#define CSYSLOG_EVERY_N(n, LEVEL, ...) el::base::NullWriter()
#define CSYSLOG_AFTER_N(n, LEVEL, ...) el::base::NullWriter()
#define CSYSLOG_N_TIMES(n, LEVEL, ...) el::base::NullWriter()
#define SYSLOG(LEVEL) el::base::NullWriter()
#define SYSLOG_IF(condition, LEVEL) el::base::NullWriter()
#define SYSLOG_EVERY_N(n, LEVEL) el::base::NullWriter()
#define SYSLOG_AFTER_N(n, LEVEL) el::base::NullWriter()
#define SYSLOG_N_TIMES(n, LEVEL) el::base::NullWriter()
#define DCSYSLOG(LEVEL, ...) el::base::NullWriter()
#define DCSYSLOG_IF(condition, LEVEL, ...) el::base::NullWriter()
#define DCSYSLOG_EVERY_N(n, LEVEL, ...) el::base::NullWriter()
#define DCSYSLOG_AFTER_N(n, LEVEL, ...) el::base::NullWriter()
#define DCSYSLOG_N_TIMES(n, LEVEL, ...) el::base::NullWriter()
#define DSYSLOG(LEVEL) el::base::NullWriter()
#define DSYSLOG_IF(condition, LEVEL) el::base::NullWriter()
#define DSYSLOG_EVERY_N(n, LEVEL) el::base::NullWriter()
#define DSYSLOG_AFTER_N(n, LEVEL) el::base::NullWriter()
#define DSYSLOG_N_TIMES(n, LEVEL) el::base::NullWriter()
#endif // defined(ELPP_SYSLOG)
//
// Custom Debug Only Loggers - Requires (level, loggerId/s)
//
// undef existing
#undef DCLOG
#undef DCVLOG
#undef DCLOG_IF
#undef DCVLOG_IF
#undef DCLOG_EVERY_N
#undef DCVLOG_EVERY_N
#undef DCLOG_AFTER_N
#undef DCVLOG_AFTER_N
#undef DCLOG_N_TIMES
#undef DCVLOG_N_TIMES
// Normal logs
#define DCLOG(LEVEL, ...)                                                      \
  if (ELPP_DEBUG_LOG)                                                          \
  CLOG(LEVEL, __VA_ARGS__)
#define DCLOG_VERBOSE(vlevel, ...)                                             \
  if (ELPP_DEBUG_LOG)                                                          \
  CLOG_VERBOSE(vlevel, __VA_ARGS__)
#define DCVLOG(vlevel, ...)                                                    \
  if (ELPP_DEBUG_LOG)                                                          \
  CVLOG(vlevel, __VA_ARGS__)
// Conditional logs
#define DCLOG_IF(condition, LEVEL, ...)                                        \
  if (ELPP_DEBUG_LOG)                                                          \
  CLOG_IF(condition, LEVEL, __VA_ARGS__)
#define DCVLOG_IF(condition, vlevel, ...)                                      \
  if (ELPP_DEBUG_LOG)                                                          \
  CVLOG_IF(condition, vlevel, __VA_ARGS__)
// Hit counts based logs
#define DCLOG_EVERY_N(n, LEVEL, ...)                                           \
  if (ELPP_DEBUG_LOG)                                                          \
  CLOG_EVERY_N(n, LEVEL, __VA_ARGS__)
#define DCVLOG_EVERY_N(n, vlevel, ...)                                         \
  if (ELPP_DEBUG_LOG)                                                          \
  CVLOG_EVERY_N(n, vlevel, __VA_ARGS__)
#define DCLOG_AFTER_N(n, LEVEL, ...)                                           \
  if (ELPP_DEBUG_LOG)                                                          \
  CLOG_AFTER_N(n, LEVEL, __VA_ARGS__)
#define DCVLOG_AFTER_N(n, vlevel, ...)                                         \
  if (ELPP_DEBUG_LOG)                                                          \
  CVLOG_AFTER_N(n, vlevel, __VA_ARGS__)
#define DCLOG_N_TIMES(n, LEVEL, ...)                                           \
  if (ELPP_DEBUG_LOG)                                                          \
  CLOG_N_TIMES(n, LEVEL, __VA_ARGS__)
#define DCVLOG_N_TIMES(n, vlevel, ...)                                         \
  if (ELPP_DEBUG_LOG)                                                          \
  CVLOG_N_TIMES(n, vlevel, __VA_ARGS__)
//
// Default Debug Only Loggers macro using CLOG(), CLOG_VERBOSE() and CVLOG()
// macros
//
#if !defined(ELPP_NO_DEBUG_MACROS)
// undef existing
#undef DLOG
#undef DVLOG
#undef DLOG_IF
#undef DVLOG_IF
#undef DLOG_EVERY_N
#undef DVLOG_EVERY_N
#undef DLOG_AFTER_N
#undef DVLOG_AFTER_N
#undef DLOG_N_TIMES
#undef DVLOG_N_TIMES
// Normal logs
#define DLOG(LEVEL) DCLOG(LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DVLOG(vlevel) DCVLOG(vlevel, ELPP_CURR_FILE_LOGGER_ID)
// Conditional logs
#define DLOG_IF(condition, LEVEL)                                              \
  DCLOG_IF(condition, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DVLOG_IF(condition, vlevel)                                            \
  DCVLOG_IF(condition, vlevel, ELPP_CURR_FILE_LOGGER_ID)
// Hit counts based logs
#define DLOG_EVERY_N(n, LEVEL) DCLOG_EVERY_N(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DVLOG_EVERY_N(n, vlevel)                                               \
  DCVLOG_EVERY_N(n, vlevel, ELPP_CURR_FILE_LOGGER_ID)
#define DLOG_AFTER_N(n, LEVEL) DCLOG_AFTER_N(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DVLOG_AFTER_N(n, vlevel)                                               \
  DCVLOG_AFTER_N(n, vlevel, ELPP_CURR_FILE_LOGGER_ID)
#define DLOG_N_TIMES(n, LEVEL) DCLOG_N_TIMES(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
#define DVLOG_N_TIMES(n, vlevel)                                               \
  DCVLOG_N_TIMES(n, vlevel, ELPP_CURR_FILE_LOGGER_ID)
#endif // defined(ELPP_NO_DEBUG_MACROS)
#if !defined(ELPP_NO_CHECK_MACROS)
// Check macros
#undef CCHECK
#undef CPCHECK
#undef CCHECK_EQ
#undef CCHECK_NE
#undef CCHECK_LT
#undef CCHECK_GT
#undef CCHECK_LE
#undef CCHECK_GE
#undef CCHECK_BOUNDS
#undef CCHECK_NOTNULL
#undef CCHECK_STRCASEEQ
#undef CCHECK_STRCASENE
#undef CHECK
#undef PCHECK
#undef CHECK_EQ
#undef CHECK_NE
#undef CHECK_LT
#undef CHECK_GT
#undef CHECK_LE
#undef CHECK_GE
#undef CHECK_BOUNDS
#undef CHECK_NOTNULL
#undef CHECK_STRCASEEQ
#undef CHECK_STRCASENE
#define CCHECK(condition, ...)                                                 \
  CLOG_IF(!(condition), FATAL, __VA_ARGS__)                                    \
      << "Check failed: [" << #condition << "] "
#define CPCHECK(condition, ...)                                                \
  CPLOG_IF(!(condition), FATAL, __VA_ARGS__)                                   \
      << "Check failed: [" << #condition << "] "
#define CHECK(condition) CCHECK(condition, ELPP_CURR_FILE_LOGGER_ID)
#define PCHECK(condition) CPCHECK(condition, ELPP_CURR_FILE_LOGGER_ID)
#define CCHECK_EQ(a, b, ...) CCHECK(a == b, __VA_ARGS__)
#define CCHECK_NE(a, b, ...) CCHECK(a != b, __VA_ARGS__)
#define CCHECK_LT(a, b, ...) CCHECK(a < b, __VA_ARGS__)
#define CCHECK_GT(a, b, ...) CCHECK(a > b, __VA_ARGS__)
#define CCHECK_LE(a, b, ...) CCHECK(a <= b, __VA_ARGS__)
#define CCHECK_GE(a, b, ...) CCHECK(a >= b, __VA_ARGS__)
#define CCHECK_BOUNDS(val, min, max, ...)                                      \
  CCHECK(val >= min && val <= max, __VA_ARGS__)
#define CHECK_EQ(a, b) CCHECK_EQ(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_NE(a, b) CCHECK_NE(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_LT(a, b) CCHECK_LT(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_GT(a, b) CCHECK_GT(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_LE(a, b) CCHECK_LE(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_GE(a, b) CCHECK_GE(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_BOUNDS(val, min, max)                                            \
  CCHECK_BOUNDS(val, min, max, ELPP_CURR_FILE_LOGGER_ID)
#define CCHECK_NOTNULL(ptr, ...) CCHECK((ptr) != nullptr, __VA_ARGS__)
#define CCHECK_STREQ(str1, str2, ...)                                          \
  CLOG_IF(!el::base::utils::Str::cStringEq(str1, str2), FATAL, __VA_ARGS__)    \
      << "Check failed: [" << #str1 << " == " << #str2 << "] "
#define CCHECK_STRNE(str1, str2, ...)                                          \
  CLOG_IF(el::base::utils::Str::cStringEq(str1, str2), FATAL, __VA_ARGS__)     \
      << "Check failed: [" << #str1 << " != " << #str2 << "] "
#define CCHECK_STRCASEEQ(str1, str2, ...)                                      \
  CLOG_IF(!el::base::utils::Str::cStringCaseEq(str1, str2), FATAL,             \
          __VA_ARGS__)                                                         \
      << "Check failed: [" << #str1 << " == " << #str2 << "] "
#define CCHECK_STRCASENE(str1, str2, ...)                                      \
  CLOG_IF(el::base::utils::Str::cStringCaseEq(str1, str2), FATAL, __VA_ARGS__) \
      << "Check failed: [" << #str1 << " != " << #str2 << "] "
#define CHECK_NOTNULL(ptr) CCHECK_NOTNULL((ptr), ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_STREQ(str1, str2)                                                \
  CCHECK_STREQ(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_STRNE(str1, str2)                                                \
  CCHECK_STRNE(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_STRCASEEQ(str1, str2)                                            \
  CCHECK_STRCASEEQ(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define CHECK_STRCASENE(str1, str2)                                            \
  CCHECK_STRCASENE(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#undef DCCHECK
#undef DCCHECK_EQ
#undef DCCHECK_NE
#undef DCCHECK_LT
#undef DCCHECK_GT
#undef DCCHECK_LE
#undef DCCHECK_GE
#undef DCCHECK_BOUNDS
#undef DCCHECK_NOTNULL
#undef DCCHECK_STRCASEEQ
#undef DCCHECK_STRCASENE
#undef DCPCHECK
#undef DCHECK
#undef DCHECK_EQ
#undef DCHECK_NE
#undef DCHECK_LT
#undef DCHECK_GT
#undef DCHECK_LE
#undef DCHECK_GE
#undef DCHECK_BOUNDS_
#undef DCHECK_NOTNULL
#undef DCHECK_STRCASEEQ
#undef DCHECK_STRCASENE
#undef DPCHECK
#define DCCHECK(condition, ...)                                                \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK(condition, __VA_ARGS__)
#define DCCHECK_EQ(a, b, ...)                                                  \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_EQ(a, b, __VA_ARGS__)
#define DCCHECK_NE(a, b, ...)                                                  \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_NE(a, b, __VA_ARGS__)
#define DCCHECK_LT(a, b, ...)                                                  \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_LT(a, b, __VA_ARGS__)
#define DCCHECK_GT(a, b, ...)                                                  \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_GT(a, b, __VA_ARGS__)
#define DCCHECK_LE(a, b, ...)                                                  \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_LE(a, b, __VA_ARGS__)
#define DCCHECK_GE(a, b, ...)                                                  \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_GE(a, b, __VA_ARGS__)
#define DCCHECK_BOUNDS(val, min, max, ...)                                     \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_BOUNDS(val, min, max, __VA_ARGS__)
#define DCCHECK_NOTNULL(ptr, ...)                                              \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_NOTNULL((ptr), __VA_ARGS__)
#define DCCHECK_STREQ(str1, str2, ...)                                         \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_STREQ(str1, str2, __VA_ARGS__)
#define DCCHECK_STRNE(str1, str2, ...)                                         \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_STRNE(str1, str2, __VA_ARGS__)
#define DCCHECK_STRCASEEQ(str1, str2, ...)                                     \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_STRCASEEQ(str1, str2, __VA_ARGS__)
#define DCCHECK_STRCASENE(str1, str2, ...)                                     \
  if (ELPP_DEBUG_LOG)                                                          \
  CCHECK_STRCASENE(str1, str2, __VA_ARGS__)
#define DCPCHECK(condition, ...)                                               \
  if (ELPP_DEBUG_LOG)                                                          \
  CPCHECK(condition, __VA_ARGS__)
#define DCHECK(condition) DCCHECK(condition, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_EQ(a, b) DCCHECK_EQ(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_NE(a, b) DCCHECK_NE(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_LT(a, b) DCCHECK_LT(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_GT(a, b) DCCHECK_GT(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_LE(a, b) DCCHECK_LE(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_GE(a, b) DCCHECK_GE(a, b, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_BOUNDS(val, min, max)                                           \
  DCCHECK_BOUNDS(val, min, max, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_NOTNULL(ptr) DCCHECK_NOTNULL((ptr), ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_STREQ(str1, str2)                                               \
  DCCHECK_STREQ(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_STRNE(str1, str2)                                               \
  DCCHECK_STRNE(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_STRCASEEQ(str1, str2)                                           \
  DCCHECK_STRCASEEQ(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define DCHECK_STRCASENE(str1, str2)                                           \
  DCCHECK_STRCASENE(str1, str2, ELPP_CURR_FILE_LOGGER_ID)
#define DPCHECK(condition) DCPCHECK(condition, ELPP_CURR_FILE_LOGGER_ID)
#endif // defined(ELPP_NO_CHECK_MACROS)
#if defined(ELPP_DISABLE_DEFAULT_CRASH_HANDLING)
#define ELPP_USE_DEF_CRASH_HANDLER false
#else
#define ELPP_USE_DEF_CRASH_HANDLER true
#endif // defined(ELPP_DISABLE_DEFAULT_CRASH_HANDLING)
#define ELPP_CRASH_HANDLER_INIT
#define ELPP_INIT_EASYLOGGINGPP(val)                                           \
  namespace el {                                                               \
  namespace base {                                                             \
  el::base::type::StoragePointer elStorage(val);                               \
  }                                                                            \
  el::base::debug::CrashHandler elCrashHandler(ELPP_USE_DEF_CRASH_HANDLER);    \
  }

#if ELPP_ASYNC_LOGGING
#define INITIALIZE_EASYLOGGINGPP                                               \
  ELPP_INIT_EASYLOGGINGPP(new el::base::Storage(                               \
      el::LogBuilderPtr(new el::base::DefaultLogBuilder()),                    \
      new el::base::AsyncDispatchWorker()))
#else
#define INITIALIZE_EASYLOGGINGPP                                               \
  ELPP_INIT_EASYLOGGINGPP(new el::base::Storage(                               \
      el::LogBuilderPtr(new el::base::DefaultLogBuilder())))
#endif // ELPP_ASYNC_LOGGING
#define INITIALIZE_NULL_EASYLOGGINGPP                                          \
  namespace el {                                                               \
  namespace base {                                                             \
  el::base::type::StoragePointer elStorage;                                    \
  }                                                                            \
  el::base::debug::CrashHandler elCrashHandler(ELPP_USE_DEF_CRASH_HANDLER);    \
  }
#define SHARE_EASYLOGGINGPP(initializedStorage)                                \
  namespace el {                                                               \
  namespace base {                                                             \
  el::base::type::StoragePointer elStorage(initializedStorage);                \
  }                                                                            \
  el::base::debug::CrashHandler elCrashHandler(ELPP_USE_DEF_CRASH_HANDLER);    \
  }

#if defined(ELPP_UNICODE)
#define START_EASYLOGGINGPP(argc, argv)                                        \
  el::Helpers::setArgs(argc, argv);                                            \
  std::locale::global(std::locale(""))
#else
#define START_EASYLOGGINGPP(argc, argv) el::Helpers::setArgs(argc, argv)
#endif // defined(ELPP_UNICODE)
#endif // EASYLOGGINGPP_H