Обновление подмодулей

cmake/FindMyxlib.cmake

@@ -1,26 +1,67 @@
-if(NOT MYXLIB_PREFIX STREQUAL CMAKE_BINARY_DIR)
-  set(MYXLIB_PREFIX
-      ""
-      CACHE PATH "The path to the previx of an myxlib installation")
+#[=======================================================================[.rst:
+FindMyxlib
+--------
 
+Поиск библиотеки Myxlib
+
+Входные переменные
+^^^^^^^^^^^^^^^^^^
+
+``MYXLIB_PREFIX``
+  корневой каталог установленной библиотеки.
+``MYXLIB_INCLUDE_DIR``
+  каталог, в котором производится поиск заголовочных файлов.
+``MYXLIB_LIBRARY_DIR``
+  каталог, в котором производится поиск библиотек.
+
+Выходные переменные
+^^^^^^^^^^^^^^^^^^^
+
+``MYXLIB_FOUND``
+  true, если MYXLIB найдена
+``MYXLIB_INCLUDE_DIRS``
+  каталог с найденными заголовочными файлами
+``MYXLIB_LIBRARIES``
+  каталог с найденными библиотеками
+
+#]=======================================================================]
+
+if(NOT MYXLIB_IS_EXTERNAL_PROJECT)
+  set(MYXLIB_PREFIX "" CACHE PATH "The path to the prefix of an myxlib installation")
+  set(MYXLIB_INCLUDE_DIR "" CACHE PATH "The path to the headers of an myxlib installation")
+  set(MYXLIB_LIBRARY_DIR "" CACHE PATH "The path to the library of an myxlib installation")
+
+  set(_search_paths "")
+  if(MYXLIB_INCLUDE_DIR AND EXISTS ${MYXLIB_INCLUDE_DIR})
+    list(APPEND _search_paths ${MYXLIB_INCLUDE_DIR})
+  endif()
+  if(MYXLIB_PREFIX AND EXISTS ${MYXLIB_PREFIX})
+    list(APPEND _search_paths "${MYXLIB_PREFIX}/include")
+  endif()
   find_path(
     MYXLIB_INCLUDE_DIRS
     NAMES myx/core/config.hpp
-    PATHS ${MYXLIB_PREFIX}/include)
-  find_library(
-    MYXLIB_QT_LIBRARY
-    NAMES myx-qt
-    PATHS ${MYXLIB_PREFIX}/lib)
-  find_library(
-    MYXLIB_FILESYSTEM_LIBRARY
-    NAMES myx-filesystem
-    PATHS ${MYXLIB_PREFIX}/lib)
+    PATHS ${_search_paths})
 
-  if(MYXLIB_INCLUDE_DIRS
-     AND MYXLIB_QT_LIBRARY
-     AND MYXLIB_FILESYSTEM_LIBRARY)
-    get_filename_component(MYXLIB_LIBRARY_DIR ${MYXLIB_QT_LIBRARY} DIRECTORY
-                           CACHE)
+  set(_search_paths "")
+  if(MYXLIB_LIBRARY_DIR AND EXISTS ${MYXLIB_LIBRARY_DIR})
+    list(APPEND _search_paths ${MYXLIB_LIBRARY_DIR})
+  endif()
+  if(MYXLIB_PREFIX AND EXISTS ${MYXLIB_PREFIX})
+    list(APPEND _search_paths "${MYXLIB_PREFIX}/lib")
+  endif()
+  find_library(
+    MYXLIB_QT_LIBRARIES
+    NAMES myx-qt
+    PATHS ${_search_paths})
+  find_library(
+    MYXLIB_FILESYSTEM_LIBRARIES
+    NAMES myx-filesystem
+    PATHS ${_search_paths})
+  unset(_search_paths)
+  set(MYXLIB_LIBRARIES ${MYXLIB_QT_LIBRARIES} ${MYXLIB_FILESYSTEM_LIBRARIES})
+
+  if(MYXLIB_INCLUDE_DIRS AND MYXLIB_LIBRARIES)
     set(MYXLIB_FOUND TRUE)
   endif()
 

cmake/FindMyxlibThirdparty.cmake

@@ -6,16 +6,16 @@ list(APPEND _ext_project_args
   myxlib
   SOURCE_DIR       ${CMAKE_SOURCE_DIR}/thirdparty/myxlib
   INSTALL_DIR      ${CMAKE_BINARY_DIR}
-  DOWNLOAD_COMMAND    ""
-  CONFIGURE_COMMAND   ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
-                         -DCMLIB_MAIN_DIR=${CMLIB_MAIN_DIR}
-                         ${CMLIB_EXT_PROJ_DEFAULT_ARGS}
+  CMAKE_ARGS       ${CMLIB_EXT_PROJ_DEFAULT_ARGS}
                    <SOURCE_DIR>)
-
 if(MyxlibThirdparty_FIND_COMPONENTS STREQUAL "headers")
   list(APPEND _ext_project_args
     BUILD_COMMAND     true
     INSTALL_COMMAND   ${CMAKE_MAKE_PROGRAM} myxlib-install-headers)
+else()
+  list(APPEND _ext_project_args
+    BUILD_BYPRODUCTS ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-qt.a
+                     ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-filesystem.a)
 endif()
 ExternalProject_Add(${_ext_project_args})
 unset(_ext_project_args)
@@ -26,15 +26,22 @@ set(MYXLIB_IS_EXTERNAL_PROJECT ON CACHE BOOL "" FORCE)
 set(MYXLIB_PREFIX
     ${CMAKE_BINARY_DIR}
     CACHE FILEPATH "" FORCE)
+set(MYXLIB_INCLUDE_DIR
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_INCLUDEDIR}
+    CACHE PATH "" FORCE)
 set(MYXLIB_INCLUDE_DIRS
     ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_INCLUDEDIR}
     CACHE PATH "" FORCE)
 set(MYXLIB_LIBRARY_DIR
     ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}
     CACHE PATH "" FORCE)
-set(MYXLIB_QT_LIBRARY
+set(MYXLIB_QT_LIBRARIES
     ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-qt.a
     CACHE FILEPATH "" FORCE)
-set(MYXLIB_FILESYSTEM_LIBRARY
+set(MYXLIB_FILESYSTEM_LIBRARIES
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-filesystem.a
+    CACHE FILEPATH "" FORCE)
+set(MYXLIB_LIBRARIES
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-qt.a
     ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-filesystem.a
     CACHE FILEPATH "" FORCE)

examples/core/02_current-system/CMakeLists.txt

@@ -0,0 +1,51 @@
+# Название основной цели в текущем каталоге
+set(TRGT example-core-current-system)
+
+# Список файлов исходных текстов
+set(TRGT_cpp ${CMAKE_CURRENT_SOURCE_DIR}/current_system.cpp)
+
+if(MYXLIB_BUILD_EXAMPLES)
+  # Путь поиска библиотек внутри проекта
+  link_directories(${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
+
+  # Цель для создания исполняемого файла
+  add_executable(${TRGT} ${TRGT_cpp} ${TRGT_qrc})
+  common_target_properties(${TRGT})
+
+  # Создание цели для проверки утилитой clang-tidy
+  add_clang_tidy_check(${TRGT} ${TRGT_cpp})
+
+  # Создание цели для проверки утилитой clang-analyze
+  add_clang_analyze_check(${TRGT} ${TRGT_cpp})
+
+  # Создание цели для проверки утилитой clazy
+  add_clazy_check(${TRGT} ${TRGT_cpp})
+
+  # Создание цели для проверки утилитой pvs-studio
+  add_pvs_check(${TRGT})
+
+  # Создание цели для автоматического форматирования кода
+  add_format_sources(${TRGT} ${TRGT_cpp})
+
+  # Qt5
+  target_include_directories(${TRGT} PRIVATE ${CMAKE_SOURCE_DIR}/src)
+  target_include_directories(${TRGT} SYSTEM PUBLIC ${Qt5Core_INCLUDE_DIRS})
+
+  target_include_directories(${TRGT} SYSTEM PRIVATE ${CMAKE_SOURCE_DIR}/src)
+  add_dependencies(${TRGT} core)
+
+  target_link_libraries(${TRGT} Qt5::Core)
+  target_link_libraries(${TRGT} Threads::Threads)
+
+  # Имя выходного файла для цели
+  set_target_properties(${TRGT} PROPERTIES OUTPUT_NAME current-system-minimal)
+
+  add_sanitizers(${TRGT})
+
+  cotire(${TRGT})
+
+  add_dependencies(${TRGT} create_auxilary_symlinks)
+
+  # Правила для установки
+  # install(TARGETS ${TRGT} COMPONENT examples RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()

examples/core/02_current-system/current_system.cpp

@@ -0,0 +1,23 @@
+#include <myx/core/config.hpp>
+#include <myx/core/current_system.hpp>
+
+#include <QDebug>
+
+//NOLINTNEXTLINE
+#define CMLIB_PROJECT_NAME "myxlib"
+
+namespace MC = myx::core;
+
+int main( int argc, char** argv )
+{
+	(void)argc;
+	(void)argv;
+
+	MC::CurrentSystem& currentSystem = MC::CurrentSystem::instance();
+	qDebug() << "Current OS: " << QString::fromStdString( currentSystem.os() );
+	qDebug() << "OS distrib: " << QString::fromStdString( currentSystem.distribution() );
+	qDebug() << "OS variant: " << QString::fromStdString( currentSystem.variant() );
+	qDebug() << "OS version: " << QString::fromStdString( currentSystem.version() );
+
+	return( 0 );
+} // main

examples/core/CMakeLists.txt

@@ -1 +1,2 @@
 add_subdirectory(01_endian)
+add_subdirectory(02_current-system)

examples/qt/03_message-logger/CMakeLists.txt

@@ -0,0 +1,53 @@
+# Название основной цели в текущем каталоге
+set(TRGT example-qt-message-logger)
+
+# Список файлов исходных текстов
+set(TRGT_cpp ${CMAKE_CURRENT_SOURCE_DIR}/message_logger.cpp)
+
+if(MYXLIB_BUILD_EXAMPLES)
+  # Путь поиска библиотек внутри проекта
+  link_directories(${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
+
+  # Цель для создания исполняемого файла
+  add_executable(${TRGT} ${TRGT_cpp})
+  common_target_properties(${TRGT})
+
+  # Создание цели для проверки утилитой clang-tidy
+  add_clang_tidy_check(${TRGT} ${TRGT_cpp})
+
+  # Создание цели для проверки утилитой clang-analyze
+  add_clang_analyze_check(${TRGT} ${TRGT_cpp})
+
+  # Создание цели для проверки утилитой clazy
+  add_clazy_check(${TRGT} ${TRGT_cpp})
+
+  # Создание цели для проверки утилитой pvs-studio
+  add_pvs_check(${TRGT})
+
+  # Создание цели для автоматического форматирования кода
+  add_format_sources(${TRGT} ${TRGT_cpp})
+
+  # Qt5
+  target_include_directories(${TRGT} PRIVATE ${CMAKE_SOURCE_DIR}/src)
+  target_include_directories(${TRGT} SYSTEM PUBLIC ${Qt5Core_INCLUDE_DIRS})
+
+  target_include_directories(${TRGT} SYSTEM PRIVATE ${CMAKE_SOURCE_DIR}/src)
+  add_dependencies(${TRGT} core qt)
+
+  target_link_libraries(${TRGT} qt_static)
+
+  target_link_libraries(${TRGT} Qt5::Core)
+  target_link_libraries(${TRGT} Threads::Threads)
+
+  # Имя выходного файла для цели
+  set_target_properties(${TRGT} PROPERTIES OUTPUT_NAME qt-message-logger)
+
+  add_sanitizers(${TRGT})
+
+  cotire(${TRGT})
+
+  add_dependencies(${TRGT} create_auxilary_symlinks)
+
+  # Правила для установки
+  # install(TARGETS ${TRGT} COMPONENT examples RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()

examples/qt/03_message-logger/message_logger.cpp

@@ -0,0 +1,29 @@
+#include <myx/qt/message_logger_default.hpp>
+#include <myx/qt/message_logger_handler.hpp>
+#include <myx/qt/message_logger_syslog.hpp>
+
+#include <QCoreApplication>
+#include <QDebug>
+
+namespace MQ = myx::qt;
+int main( int argc, char* argv[] )
+{
+	QCoreApplication app( argc, argv );
+
+	auto mld = QSharedPointer< MQ::MessageLoggerDefault >( new MQ::MessageLoggerDefault );
+	MQ::messageLoggersList.append( mld );
+	MQ::messageLoggersList.append( mld );
+	auto mls = QSharedPointer< MQ::MessageLoggerSyslog >( new MQ::MessageLoggerSyslog );
+	MQ::messageLoggersList.append( mls );
+	qInstallMessageHandler( MQ::message_logger_handler );
+
+	qDebug() << "Hello from process:" << QCoreApplication::applicationPid();
+	qWarning() << "Warning";
+
+	qInstallMessageHandler( 0 );
+
+	qDebug() << "Reset user handlers";
+	qWarning() << "Goodbye";
+
+	return( 0 );
+}

examples/qt/CMakeLists.txt

@@ -1,2 +1,3 @@
 add_subdirectory(01_translators)
 add_subdirectory(02_posix-signal-watcher)
+add_subdirectory(03_message-logger)

src/myx/core/CMakeLists.txt

@@ -9,6 +9,7 @@ set(TRGT_cpp)
 set(TRGT_hpp
     ${CMAKE_CURRENT_SOURCE_DIR}/config.hpp
     ${CMAKE_CURRENT_SOURCE_DIR}/limits.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/current_system.hpp
     ${CMAKE_CURRENT_SOURCE_DIR}/endian_types.hpp
     ${CMAKE_CURRENT_SOURCE_DIR}/enum_bitmask_operations.hpp)
 

src/myx/core/current_system.hpp

@@ -0,0 +1,109 @@
+#ifndef MYX_CORE_CURRENT_SYSTEM_HPP_
+#define MYX_CORE_CURRENT_SYSTEM_HPP_
+
+#pragma once
+
+#include <algorithm>
+#include <limits>
+#include <fstream>
+#include <string>
+
+namespace myx {
+
+namespace core {
+
+class CurrentSystem
+{
+public:
+	CurrentSystem( const CurrentSystem& ) = delete;
+	CurrentSystem& operator=( const CurrentSystem& ) = delete;
+	CurrentSystem( CurrentSystem&& ) = delete;
+	CurrentSystem& operator=( CurrentSystem&& ) = delete;
+
+	/**
+	 * @brief instance
+	 * @return Уникальный экземпляр класса CurrentSystem
+	 */
+	static CurrentSystem& instance()
+	{
+		static CurrentSystem sCurrentSystem;
+		return( sCurrentSystem );
+	}
+
+	std::string os() const { return( m_os ); }
+	std::string distribution() const { return( m_distribution ); }
+	std::string variant() const { return( m_variant ); }
+	std::string version() const { return( m_version ); }
+
+protected:
+	CurrentSystem() :
+		m_os
+		(
+			#if defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined( __NT__ )
+			"windows"
+			#elif __linux__
+			"linux"
+			#else
+			#error "Unknown OS"
+			#endif
+		)
+	{
+		#if defined( __e2k__ )
+		m_distribution = "debian";
+		m_variant      = "elbrus";
+		std::ifstream file( "/etc/mcst_version" );
+		if ( file.is_open() )
+		{
+			std::getline( file, m_version );
+			file.close();
+		}
+		#else
+		std::ifstream file( "/etc/os-release" );
+		if ( file.is_open() )
+		{
+			std::string line;
+			while ( std::getline( file, line ) )
+			{
+				std::size_t pos = line.find( "ID=" );
+				if ( pos == 0 )
+				{
+					m_distribution = line.replace( pos, sizeof( "ID=" ) - 1, "" );
+				}
+
+				pos = line.find( "VARIANT_ID=" );
+				if ( pos != std::string::npos )
+				{
+					m_variant = line.replace( pos, sizeof( "VARIANT_ID=" ) - 1, "" );
+				}
+
+				pos = line.find( "VERSION_ID=" );
+				if ( pos != std::string::npos )
+				{
+					m_version = line.replace( pos, sizeof( "VERSION_ID=" ) - 1, "" );
+					while ( ( pos = m_version.find( '"' ) ) != std::string::npos )
+					{
+						m_version.erase( pos, sizeof( '"' ) );
+					}
+				}
+			}
+			file.close();
+		}
+		#endif // if defined( __e2k__ )
+	}
+
+	~CurrentSystem() = default;
+
+private:
+	std::string m_os;
+	std::string m_distribution;
+	std::string m_variant;
+	std::string m_version;
+}; // class CurrentSystem
+
+// class CurrentSystem
+
+} // namespace core
+
+} // namespace myx
+
+#endif // MYX_CORE_CURRENT_SYSTEM_HPP_

src/myx/qt/CMakeLists.txt

@@ -6,6 +6,9 @@ set(TRGT qt)
 set(TRGT_cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/posix_signal_watcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/translators.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger_default.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger_handler.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger_syslog.cpp
   )
 
 set(TRGT_moc_hpp
@@ -18,6 +21,10 @@ set(TRGT_moc_private_hpp
 
 set(TRGT_hpp
     ${CMAKE_CURRENT_SOURCE_DIR}/translators.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger_default.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger_handler.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/message_logger_syslog.hpp
   )
 
 set(TRGT_headers ${TRGT_moc_hpp} ${TRGT_hpp})

src/myx/qt/message_logger.hpp

@@ -0,0 +1,44 @@
+#ifndef MYX_QT_MESSAGE_LOGGER_HPP_
+#define MYX_QT_MESSAGE_LOGGER_HPP_
+
+#pragma once
+
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+
+#include <QList>
+#include <QMessageLogContext>
+#include <QSharedPointer>
+#include <QString>
+
+
+namespace myx {
+
+namespace qt {
+
+class MessageLogger
+{
+public:
+	virtual ~MessageLogger() noexcept ( true ) = default;
+
+	virtual void debug( const QMessageLogContext& context, const QString& ) = 0;
+	virtual void info( const QMessageLogContext& context, const QString& ) = 0;
+	virtual void warning( const QMessageLogContext& context, const QString& ) = 0;
+	virtual void critical( const QMessageLogContext& context, const QString& ) = 0;
+	virtual void fatal( const QMessageLogContext& context, const QString& ) = 0;
+
+	void setEnabled( bool v = true ) { m_enabled = v; }
+	bool isEnabled() { return( m_enabled ); }
+
+protected:
+	bool m_enabled { true };
+};
+
+using MessageLoggersList = QList< QSharedPointer< MessageLogger > >;
+extern MessageLoggersList messageLoggersList;
+
+} // namespace qt
+
+} // namespace myx
+
+#endif // ifndef MYX_QT_MESSAGE_LOGGER_HPP_

src/myx/qt/message_logger_default.cpp

@@ -0,0 +1,46 @@
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+
+#include <myx/qt/message_logger_default.hpp>
+
+#include <QtDebug>
+
+namespace myx {
+
+namespace qt {
+
+void MessageLoggerDefault::debug( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	fprintf( stderr, "D: %s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerDefault::info( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	fprintf( stderr, "I: %s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerDefault::warning( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	fprintf( stderr, "W: %s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerDefault::critical( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+}
+
+
+void MessageLoggerDefault::fatal( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+}
+
+} // namespace qt
+
+} // namespace myx

src/myx/qt/message_logger_default.hpp

@@ -0,0 +1,31 @@
+#ifndef MYX_QT_MESSAGE_LOGGER_DEFAULT_HPP_
+#define MYX_QT_MESSAGE_LOGGER_DEFAULT_HPP_
+
+#pragma once
+
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+#include <myx/qt/message_logger.hpp>
+
+
+namespace myx {
+
+namespace qt {
+
+class MessageLoggerDefault : public MessageLogger
+{
+public:
+	virtual ~MessageLoggerDefault() noexcept ( true ) = default;
+
+	void debug( const QMessageLogContext& context, const QString& msg ) override;
+	void info( const QMessageLogContext& context, const QString& msg ) override;
+	void warning( const QMessageLogContext& context, const QString& msg ) override;
+	void critical( const QMessageLogContext& context, const QString& msg ) override;
+	void fatal( const QMessageLogContext& context, const QString& msg ) override;
+};
+
+} // namespace qt
+
+} // namespace myx
+
+#endif // ifndef MYX_QT_MESSAGE_LOGGER_DEFAULT_HPP_

src/myx/qt/message_logger_handler.cpp

@@ -0,0 +1,81 @@
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+
+#include <myx/qt/message_logger.hpp>
+
+#include <QtDebug>
+
+namespace myx {
+
+namespace qt {
+
+MessageLoggersList messageLoggersList;
+
+void message_logger_handler( QtMsgType type, const QMessageLogContext& context, const QString& msg )
+{
+	if ( messageLoggersList.isEmpty() )
+	{
+		QByteArray  localMsg = msg.toLocal8Bit();
+		const char* file     = context.file ? context.file : "";
+		const char* function = context.function ? context.function : "";
+		switch ( type )
+		{
+		case QtDebugMsg:
+			#ifndef QT_NO_DEBUG_OUTPUT
+//			fprintf( stderr, "Debug: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function );
+			fprintf( stderr, "%s\n", localMsg.constData() );
+			#endif
+			break;
+		case QtInfoMsg:
+			#ifndef QT_NO_INFO_OUTPUT
+//			fprintf( stderr, "Info: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function );
+			fprintf( stderr, "%s\n", localMsg.constData() );
+			#endif
+			break;
+		case QtWarningMsg:
+			#ifndef QT_NO_WARNING_OUTPUT
+//			fprintf( stderr, "Warning: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function );
+			fprintf( stderr, "%s\n", localMsg.constData() );
+			#endif
+			break;
+		case QtCriticalMsg:
+//			fprintf( stderr, "Critical: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function );
+			fprintf( stderr, "%s\n", localMsg.constData() );
+			break;
+		case QtFatalMsg:
+//			fprintf( stderr, "Fatal: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function );
+			fprintf( stderr, "%s\n", localMsg.constData() );
+			break;
+		} // switch
+	}
+	else
+	{
+		switch ( type )
+		{
+		case QtDebugMsg:
+			for ( auto& m: qAsConst( messageLoggersList ) )
+			{ if ( m->isEnabled() ) { m->debug( context, msg ); } }
+			break;
+		case QtInfoMsg:
+			for ( auto& m: qAsConst( messageLoggersList ) )
+			{ if ( m->isEnabled() ) { m->info( context, msg ); } }
+			break;
+		case QtWarningMsg:
+			for ( auto& m: qAsConst( messageLoggersList ) )
+			{ if ( m->isEnabled() ) { m->warning( context, msg ); } }
+			break;
+		case QtCriticalMsg:
+			for ( auto& m: qAsConst( messageLoggersList ) )
+			{ if ( m->isEnabled() ) { m->critical( context, msg ); } }
+			break;
+		case QtFatalMsg:
+			for ( auto& m: qAsConst( messageLoggersList ) )
+			{ if ( m->isEnabled() ) { m->fatal( context, msg ); } }
+			break;
+		} // switch
+	}
+} // message_logger_handler
+
+} // namespace qt
+
+} // namespace myx

src/myx/qt/message_logger_handler.hpp

@@ -0,0 +1,20 @@
+#ifndef MYX_QT_MESSAGE_LOGGER_HANDLER_HPP_
+#define MYX_QT_MESSAGE_LOGGER_HANDLER_HPP_
+
+#pragma once
+
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+#include <myx/qt/message_logger.hpp>
+
+namespace myx {
+
+namespace qt {
+
+void message_logger_handler( QtMsgType type, const QMessageLogContext& context, const QString& msg );
+
+} // namespace qt
+
+} // namespace myx
+
+#endif // ifndef MYX_QT_MESSAGE_LOGGER_HANDLER_HPP_

src/myx/qt/message_logger_syslog.cpp

@@ -0,0 +1,61 @@
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+
+#include <myx/qt/message_logger_syslog.hpp>
+
+#include <syslog.h>
+
+namespace myx {
+
+namespace qt {
+
+MessageLoggerSyslog::MessageLoggerSyslog() :
+	MessageLogger()
+{
+//	openlog( nullptr, LOG_ODELAY, LOG_USER );
+}
+
+
+MessageLoggerSyslog::~MessageLoggerSyslog() noexcept ( true )
+{
+	closelog();
+}
+
+
+void MessageLoggerSyslog::debug( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	syslog( LOG_DEBUG, "%s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerSyslog::info( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	syslog( LOG_INFO, "%s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerSyslog::warning( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	syslog( LOG_WARNING, "%s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerSyslog::critical( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	syslog( LOG_CRIT, "%s\n", msg.toUtf8().data() );
+}
+
+
+void MessageLoggerSyslog::fatal( const QMessageLogContext& context, const QString& msg )
+{
+	Q_UNUSED( context )
+	syslog( LOG_EMERG, "%s\n", msg.toUtf8().data() );
+}
+
+} // namespace qt
+
+} // namespace myx

src/myx/qt/message_logger_syslog.hpp

@@ -0,0 +1,32 @@
+#ifndef MYX_QT_MESSAGE_LOGGER_SYSLOG_HPP_
+#define MYX_QT_MESSAGE_LOGGER_SYSLOG_HPP_
+
+#pragma once
+
+#include <myx/backports/qt/common.hpp>
+#include <myx/core/config.hpp>
+#include <myx/qt/message_logger.hpp>
+
+
+namespace myx {
+
+namespace qt {
+
+class MessageLoggerSyslog : public MessageLogger
+{
+public:
+	MessageLoggerSyslog();
+	virtual ~MessageLoggerSyslog() noexcept ( true );
+
+	void debug( const QMessageLogContext& context, const QString& msg ) override;
+	void info( const QMessageLogContext& context, const QString& msg ) override;
+	void warning( const QMessageLogContext& context, const QString& msg ) override;
+	void critical( const QMessageLogContext& context, const QString& msg ) override;
+	void fatal( const QMessageLogContext& context, const QString& msg ) override;
+};
+
+} // namespace qt
+
+} // namespace myx
+
+#endif // ifndef MYX_QT_MESSAGE_LOGGER_SYSLOG_HPP_