升级jemalloc到5.3版本 (#2884)

升级jemalloc到5.3版本,相比5.2.1内存稳定许多,去除--without-export编译参数,
解决类似glibc中分配内存却在jemalloc中释放导致崩溃问题.
比如: toolkit::LoggerWrapper::printLogV中使用的vasprintf

CMakeLists.txt

@@ -39,6 +39,7 @@ option(ENABLE_FAAC "Enable FAAC" OFF)
 option(ENABLE_FFMPEG "Enable FFmpeg" OFF)
 option(ENABLE_HLS "Enable HLS" ON)
 option(ENABLE_JEMALLOC_STATIC "Enable static linking to the jemalloc library" OFF)
+option(ENABLE_JEMALLOC_DUMP "Enable jemalloc to dump malloc statistics" OFF)
 option(ENABLE_MEM_DEBUG "Enable Memory Debug" OFF)
 option(ENABLE_MP4 "Enable MP4" ON)
 option(ENABLE_HLS_FMP4 "Enable HLS-FMP4" ON)
@@ -335,7 +336,11 @@ if(ENABLE_JEMALLOC_STATIC)
   if(NOT EXISTS ${DEP_ROOT_DIR})
     file(MAKE_DIRECTORY ${DEP_ROOT_DIR})
   endif()
-
+  if (ENABLE_JEMALLOC_DUMP)
+    set(ENABLE_JEMALLOC_STAT ON)
+  else ()
+    set(ENABLE_JEMALLOC_STAT OFF)
+  endif ()
   include(Jemalloc)
   include_directories(SYSTEM ${DEP_ROOT_DIR}/${JEMALLOC_NAME}/include/jemalloc)
   link_directories(${DEP_ROOT_DIR}/${JEMALLOC_NAME}/lib)
@@ -349,6 +354,12 @@ if(JEMALLOC_FOUND)
   message(STATUS "found library: ${JEMALLOC_LIBRARIES}")
   include_directories(${JEMALLOC_INCLUDE_DIR})
   update_cached_list(MK_LINK_LIBRARIES ${JEMALLOC_LIBRARIES})
+  add_definitions(-DUSE_JEMALLOC)
+  message(STATUS "jemalloc will be used to avoid memory fragmentation")
+  if (ENABLE_JEMALLOC_DUMP)
+    add_definitions(-DENABLE_JEMALLOC_DUMP)
+    message(STATUS "jemalloc will save memory usage statistics when the program exits")
+  endif ()
 endif()
 
 # 查找 openssl 是否安装