基于Apache Log4cxx的C++日志库设计源码

# # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # cmake_minimum_required(VERSION 3.13) include(src/cmake/projectVersionDetails.cmake) project(log4cxx VERSION ${log4cxx_VER} LANGUAGES CXX) include(CTest) # If you are including log4cxx from a higher-level CMake file(perhaps as a submodule?) # CMAKE_SOURCE_DIR will refer to the first CMakeLists.txt. Since we need some files # in relation to the log4cxx source root, set a variable that contains the log4cxx root. set(LOG4CXX_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}") # The namespace in which all log4cxx entities will be placed, default value is "log4cxx" set(LOG4CXX_NS "log4cxx" CACHE STRING "Root namespace name") # define the SO Version of the library. Version of the log4cxx project is subtly different than the version of the library # (at least in the past it was project vesion: 0.a.b.c and the library so vesion a.b.c.0 # See also: https://mail.kde.org/pipermail/kde-buildsystem/2008-April/004543.html # Note that the lib version is different from the SOVERSION # The lib version is the version of log4cxx, the SOVERSION is the ABI version # See also: https://cmake.org/pipermail/cmake/2012-September/051904.html set(current_log4cxx_ABI_VER 15) set(next_log4cxx_ABI_VER 16) set(log4cxx_ABI_VER "${current_log4cxx_ABI_VER}" CACHE STRING "The DSO library version") set_property(CACHE log4cxx_ABI_VER PROPERTY STRINGS "${current_log4cxx_ABI_VER}" "${next_log4cxx_ABI_VER}") set(LIBLOG4CXX_LIB_VERSION ${log4cxx_ABI_VER}.${log4cxx_VERSION_MINOR}.${log4cxx_VERSION_PATCH}) set(LIBLOG4CXX_LIB_SOVERSION ${log4cxx_ABI_VER}) # Set the 'release' version. This is the human-readable version set(LOG4CXX_RELEASE_VERSION ${log4cxx_VERSION_MAJOR}.${log4cxx_VERSION_MINOR}.${log4cxx_VERSION_PATCH}) # FindAPR and FindAPR-util are not provided by APR and APR-Util so source them locally list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/src/cmake") # Add support for linking statically option(BUILD_SHARED_LIBS "Build shared libraries" ON) if(NOT BUILD_SHARED_LIBS) set(LOG4CXX_COMPILE_DEFINITIONS LOG4CXX_STATIC) endif() option(ENABLE_COVERAGE "Enable code coverage" OFF) if(ENABLE_COVERAGE) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --coverage") endif() # Find Apache Runtime option(APR_STATIC "Link to the APR static library" OFF) find_package(APR REQUIRED) # Find Apache Runtime Utilities option(APU_STATIC "Link to the APR-Util static library" OFF) find_package(APR-Util REQUIRED) find_package( Threads REQUIRED ) # Find expat for XML parsing find_package(EXPAT REQUIRED) if(TARGET EXPAT::EXPAT) set(EXPAT_LIBRARIES EXPAT::EXPAT) elseif(TARGET expat::expat) set(EXPAT_LIBRARIES expat::expat) endif() option(LOG4CXX_ENABLE_ODBC "Support logging via ODBC" OFF) if(LOG4CXX_ENABLE_ODBC) find_package(ODBC) if(${ODBC_FOUND}) set(HAS_ODBC 1) else() set(HAS_ODBC 0) endif(${ODBC_FOUND}) if(NOT ${HAS_ODBC}) message(SEND_ERROR "ODBC not found but requested") endif() else() set(HAS_ODBC 0) endif(LOG4CXX_ENABLE_ODBC) option(LOG4CXX_ENABLE_ESMTP "Support logging via libesmtp" OFF) option(LIBESMTP_STATIC "Link to the libesmtp static library" OFF) if(LOG4CXX_ENABLE_ESMTP) find_package(ESMTP) if(ESMTP_FOUND) set(HAS_LIBESMTP 1) else() set(HAS_LIBESMTP 0) message(SEND_ERROR "libesmtp not found but SMTP support requested") endif(ESMTP_FOUND) else() set(ESMTP_LIBRARIES ) set(HAS_LIBESMTP 0) endif(LOG4CXX_ENABLE_ESMTP) find_package(fmt 7.1 QUIET) if(${fmt_FOUND}) option(ENABLE_FMT_LAYOUT "Enable the FMT layout(if libfmt found)" ON) else() set(ENABLE_FMT_LAYOUT "OFF") endif() # Request C++20, if available # This *should* fallback to an older standard if it is not available if( NOT "${CMAKE_CXX_STANDARD}") set(CMAKE_CXX_STANDARD 20) endif() # Don't allow for compiler-specific extensions set(CMAKE_CXX_EXTENSIONS OFF) # Use solution folders. set_property(GLOBAL PROPERTY USE_FOLDERS ON) # Building add_subdirectory(src) ## Installing if(WIN32) option(LOG4CXX_INSTALL_PDB "Install .pdb files (if generated)" ON) endif() include(GNUInstallDirs) install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/src/main/include/log4cxx DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} FILES_MATCHING PATTERN "*.h" PATTERN "Private" EXCLUDE ) install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/src/main/include/log4cxx DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} FILES_MATCHING PATTERN "*.h" PATTERN "Private" EXCLUDE ) install(TARGETS log4cxx EXPORT ${LOG4CXX_LIB_NAME}Targets RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ) if(LOG4CXX_QT_SUPPORT) install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/src/main/include/log4cxx-qt DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} FILES_MATCHING PATTERN "*.h" ) install(TARGETS log4cxx-qt EXPORT ${LOG4CXX_LIB_NAME}-qtTargets RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ) endif(LOG4CXX_QT_SUPPORT) IF(MSVC AND BUILD_SHARED_LIBS AND LOG4CXX_INSTALL_PDB) INSTALL(FILES $<TARGET_PDB_FILE:log4cxx> DESTINATION ${CMAKE_INSTALL_BINDIR} CONFIGURATIONS RelWithDebInfo Debug ) ENDIF() if(UNIX) # Support for pkg-config in consuming projects set(prefix "${CMAKE_INSTALL_PREFIX}") set(exec_prefix "${CMAKE_INSTALL_PREFIX}") set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}") set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}") set(VERSION "${log4cxx_VERSION_MAJOR}.${log4cxx_VERSION_MINOR}.${log4cxx_VERSION_PATCH}") configure_file("${CMAKE_CURRENT_SOURCE_DIR}/liblog4cxx.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/lib${LOG4CXX_LIB_NAME}.pc" ) install(FILES "${CMAKE_CURRENT_BINARY_DIR}/lib${LOG4CXX_LIB_NAME}.pc" DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) if(LOG4CXX_QT_SUPPORT) set(prefix "${CMAKE_INSTALL_PREFIX}") set(exec_prefix "${CMAKE_INSTALL_PREFIX}") set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}") set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}") set(VERSION "${log4cxx_VERSION_MAJOR}.${log4cxx_VERSION_MINOR}.${log4cxx_VERSION_PATCH}") configure_file("${CMAKE_CURRENT_SOURCE_DIR}/liblog4cxx-qt.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/lib${LOG4CXX_LIB_NAME}-qt.pc" ) install(FILES "${CMAKE_CURRENT_BINARY_DIR}/lib${LOG4CXX_LIB_NAME}-qt.pc" DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig ) endif(LOG4CXX_QT_SUPPORT) endif(UNIX) # Support for find_package(log4cxx) in consuming CMake projects using # target_include_directories(myApplication PRIVATE $<TARGET_PROPERTY:log4cxx,INTERFACE_INCLUDE_DIRECTORIES>) # target_link_libraries( myApplication PRIVATE log4cxx) install(EXPORT ${LOG4CXX_LIB_NAME}Targets FILE ${LOG4CXX_LIB_NAME}Config.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${LOG4CXX_LIB_NAME} ) # Support for find_package(log4cxx 0.11) in consuming CMake projects include(CMakePackageConfigHelpers) write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/${LOG4CXX_LIB_NAME}ConfigVersion.cmake"