基于paho.mqtt.c编写的mqtt客户端

#******************************************************************************* # Copyright (c) 2015, 2020 logi.cals GmbH and others # # All rights reserved. This program and the accompanying materials # are made available under the terms of the Eclipse Public License v2.0 # and Eclipse Distribution License v1.0 which accompany this distribution. # # The Eclipse Public License is available at # https://www.eclipse.org/legal/epl-2.0/ # and the Eclipse Distribution License is available at # http://www.eclipse.org/org/documents/edl-v10.php. # # Contributors: # Rainer Poisel - initial version # Ian Craggs (IBM Corp.) - merge master # Ian Craggs - update for MQTTV5 support #*******************************************************************************/ # Note: on OS X you should install XCode and the associated command-line tools ## compilation/linkage settings CONFIGURE_FILE(VersionInfo.h.in ${CMAKE_BINARY_DIR}/VersionInfo.h @ONLY ) SET(common_src MQTTTime.c MQTTProtocolClient.c Clients.c utf-8.c MQTTPacket.c MQTTPacketOut.c Messages.c Tree.c Socket.c Log.c MQTTPersistence.c Thread.c MQTTProtocolOut.c MQTTPersistenceDefault.c SocketBuffer.c LinkedList.c MQTTProperties.c MQTTReasonCodes.c Base64.c SHA1.c WebSocket.c Proxy.c ) IF (NOT PAHO_HIGH_PERFORMANCE) SET(common_src ${common_src} StackTrace.c Heap.c ) ENDIF() IF (WIN32) SET(LIBS_SYSTEM ws2_32 crypt32 RpcRT4) ELSEIF (UNIX) IF(CMAKE_SYSTEM_NAME MATCHES "Linux") SET(LIBS_SYSTEM c dl pthread rt) # anl is only available with glibc so check if it is found before using # it or build will fail on uclibc or musl FIND_LIBRARY(LIB_ANL anl) IF(LIB_ANL) SET(LIBS_SYSTEM "${LIBS_SYSTEM}" anl) ENDIF() ADD_DEFINITIONS(-D_GNU_SOURCE -fvisibility=hidden) ELSEIF (CMAKE_SYSTEM_NAME MATCHES "Android") SET(LIBS_SYSTEM c dl) ELSEIF (CMAKE_SYSTEM_NAME MATCHES "FreeBSD") SET(LIBS_SYSTEM compat pthread) ELSE() SET(LIBS_SYSTEM c pthread) ENDIF() ENDIF() IF (PAHO_BUILD_SHARED) # common compilation for libpaho-mqtt3c and libpaho-mqtt3a ADD_LIBRARY(common_obj OBJECT ${common_src}) SET_TARGET_PROPERTIES(common_obj PROPERTIES POSITION_INDEPENDENT_CODE ON COMPILE_DEFINITIONS "PAHO_MQTT_EXPORTS=1") ADD_EXECUTABLE(MQTTVersion MQTTVersion.c) SET_TARGET_PROPERTIES(MQTTVersion PROPERTIES POSITION_INDEPENDENT_CODE ON COMPILE_DEFINITIONS "PAHO_MQTT_IMPORTS=1") ENDIF() IF (PAHO_BUILD_STATIC) ADD_LIBRARY(common_obj_static OBJECT ${common_src}) SET_TARGET_PROPERTIES(common_obj_static PROPERTIES POSITION_INDEPENDENT_CODE ON COMPILE_DEFINITIONS "PAHO_MQTT_STATIC=1") ENDIF() IF (PAHO_BUILD_SHARED) ADD_LIBRARY(paho-mqtt3c SHARED $<TARGET_OBJECTS:common_obj> MQTTClient.c) ADD_LIBRARY(paho-mqtt3a SHARED $<TARGET_OBJECTS:common_obj> MQTTAsync.c MQTTAsyncUtils.c) TARGET_LINK_LIBRARIES(paho-mqtt3c ${LIBS_SYSTEM}) TARGET_LINK_LIBRARIES(paho-mqtt3a ${LIBS_SYSTEM}) TARGET_LINK_LIBRARIES(MQTTVersion paho-mqtt3a paho-mqtt3c ${LIBS_SYSTEM}) SET_TARGET_PROPERTIES( paho-mqtt3c paho-mqtt3a PROPERTIES VERSION ${CLIENT_VERSION} SOVERSION ${PAHO_VERSION_MAJOR} COMPILE_DEFINITIONS "PAHO_MQTT_EXPORTS=1") IF(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") SET(MQTTCLIENT_ENTRY_POINT _MQTTClient_init) SET(MQTTASYNC_ENTRY_POINT _MQTTAsync_init) ELSEIF (NOT WIN32) SET(MQTTCLIENT_ENTRY_POINT MQTTClient_init) SET(MQTTASYNC_ENTRY_POINT MQTTAsync_init) ENDIF() IF (NOT WIN32) SET_TARGET_PROPERTIES( paho-mqtt3c PROPERTIES LINK_FLAGS "-Wl,-init,${MQTTCLIENT_ENTRY_POINT}") SET_TARGET_PROPERTIES( paho-mqtt3a PROPERTIES LINK_FLAGS "-Wl,-init,${MQTTASYNC_ENTRY_POINT}") ENDIF() FOREACH(TARGET paho-mqtt3c paho-mqtt3a) TARGET_INCLUDE_DIRECTORIES(${TARGET} PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}> $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> PRIVATE ${CMAKE_BINARY_DIR}) ENDFOREACH() INSTALL(TARGETS paho-mqtt3c paho-mqtt3a EXPORT eclipse-paho-mqtt-cTargets ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) INSTALL(TARGETS MQTTVersion RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) ENDIF() IF (PAHO_BUILD_STATIC) ADD_LIBRARY(paho-mqtt3c-static STATIC $<TARGET_OBJECTS:common_obj_static> MQTTClient.c) ADD_LIBRARY(paho-mqtt3a-static STATIC $<TARGET_OBJECTS:common_obj_static> MQTTAsync.c MQTTAsyncUtils.c) TARGET_LINK_LIBRARIES(paho-mqtt3c-static ${LIBS_SYSTEM}) TARGET_LINK_LIBRARIES(paho-mqtt3a-static ${LIBS_SYSTEM}) IF (NOT WIN32) SET_TARGET_PROPERTIES(paho-mqtt3c-static PROPERTIES OUTPUT_NAME paho-mqtt3c) SET_TARGET_PROPERTIES(paho-mqtt3a-static PROPERTIES OUTPUT_NAME paho-mqtt3a) ENDIF() SET_TARGET_PROPERTIES( paho-mqtt3c-static paho-mqtt3a-static PROPERTIES VERSION ${CLIENT_VERSION} SOVERSION ${PAHO_VERSION_MAJOR} COMPILE_DEFINITIONS "PAHO_MQTT_STATIC=1") FOREACH(TARGET paho-mqtt3c-static paho-mqtt3a-static) TARGET_INCLUDE_DIRECTORIES(${TARGET} PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}> $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> PRIVATE ${CMAKE_BINARY_DIR}) ENDFOREACH() IF (NOT PAHO_BUILD_SHARED) INSTALL(TARGETS paho-mqtt3c-static paho-mqtt3a-static EXPORT eclipse-paho-mqtt-cTargets ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) ELSE() INSTALL(TARGETS paho-mqtt3c-static paho-mqtt3a-static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}) ENDIF() ENDIF() INSTALL(FILES MQTTAsync.h MQTTClient.h MQTTClientPersistence.h MQTTProperties.h MQTTReasonCodes.h MQTTSubscribeOpts.h MQTTExportDeclarations.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) IF (PAHO_WITH_SSL) SET(OPENSSL_ROOT_DIR "" CACHE PATH "Directory containing OpenSSL libraries and includes") find_package(OpenSSL REQUIRED) IF (PAHO_BUILD_SHARED) ## common compilation for libpaho-mqtt3cs and libpaho-mqtt3as ## Note: SSL libraries must be recompiled due ifdefs ADD_LIBRARY(common_ssl_obj OBJECT ${common_src}) TARGET_INCLUDE_DIRECTORIES(common_ssl_obj PUBLIC ${OPENSSL_INCLUDE_DIR}) SET_PROPERTY(TARGET common_ssl_obj PROPERTY POSITION_INDEPENDENT_CODE ON) SET_PROPERTY(TARGET common_ssl_obj PROPERTY COMPILE_DEFINITIONS "OPENSSL=1;PAHO_MQTT_EXPORTS=1") ADD_LIBRARY(paho-mqtt3cs SHARED $<TARGET_OBJECTS:common_ssl_obj> MQTTClient.c SSLSocket.c) ADD_LIBRARY(paho-mqtt3as SHARED $<TARGET_OBJECTS:common_ssl_obj> MQTTAsync.c MQTTAsyncUtils.c SSLSocket.c) SET_TARGET_PROPERTIES( paho-mqtt3cs paho-mqtt3as PROPERTIES VERSION ${CLIENT_VERSION} SOVERSION ${PAHO_VERSION_MAJOR} COMPILE_DEFINITIONS "OPENSSL=1;PAHO_MQTT_EXPORTS=1") IF(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") SET(MQTTCLIENT_ENTRY_POINT _MQTTClient_init) SET(MQTTASYNC_ENTRY_POINT _MQTTAsync_init) ELSEIF (NOT WIN32) SET(MQTTCLIENT_ENTRY_POINT MQTTClient_init) SET(MQTTASYNC_ENTRY_POINT MQTTAsync_init) ENDIF() IF (NOT WIN32) SET_TARGET_PROPERTIES( paho-mqtt3cs PROPERTIES LINK_FLAGS "-Wl,-init,${MQTTCLIENT_ENTRY_POINT}") SET_TARGET_PROPERTIES( paho-mqtt3as PROPERTIES LINK_FLAGS "-Wl,-init,${MQTTASYNC_ENTRY_POINT}") ENDIF() FOREACH(TARGET paho-mqtt3cs paho-mqtt3as)