1.更新版本号为5.5.0

2.不再单独维护windows_dev分支，多个系统Linux/Windows/macOS等都使用master分支
3.增加logcallback功能，特别在Windows系统下，可以设置日志回调打印日志到自定义日志文件
4.优化日志，日志中打印上传下载速率，方便问题定位
5.优化Makefile，多个系统共用同一套Makefile，支持Linux/Windows/macOS系统，增加编译选项，可以支持编译动态库/编译demo/编译unittest
6.优化UT
7.去掉不必要的库依赖，例如Jsoncpp，OpenSSL，boost等，目前只依赖Poco库，并把相关头文件以及库文件添加到工程目录中，不需要再领先下载下载库
8.tools目录中增加测速工具，方便问题定位
9.libs目录中添加已编译好的库文件，包括Linux/Win32/Win64/macOS等不同版本，不需要编译代码即可使用sdk

CMakeLists.txt

@@ -1,52 +1,71 @@
 cmake_minimum_required(VERSION 2.8)
 CMAKE_policy(SET CMP0015 NEW)
-
 project(cos-cpp-sdk)
-#SET(BOOST_HEADER_DIR "/root/boost_1_68_0/")
-#SET(CMAKE_CXX_STANDARD 11)  cmake 3.x才支持
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-SET(CMAKE_VERBOSE_MAKEFILE  ON)
-# find_package自动查找，或者通过SET(OPENSSL_VERSION 1.0.0)人工设置
-find_package(OpenSSL REQUIRED)
-#SET(OPENSSL_VERSION 1.0.1e)
-message(${OPENSSL_VERSION})
-
-# 单元测试与覆盖率统计
-OPTION (ENABLE_UNITTEST "Unittest" OFF)
-
-# coverage option
-IF(ENABLE_UNITTEST)
-    find_package(GTest REQUIRED)
-    if (NOT GTest_FOUND)
-        message(FATAL_ERROR "GTest Not Found!")
-    endif (NOT GTest_FOUND)
-    MESSAGE(STATUS ENABLE_UNITTEST=${ENABLE_UNITTEST})
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
-ENDIF()
-
-add_definitions(-D__COS_DEBUG__)
-
-# include directories
-INCLUDE_DIRECTORIES(./include)
-INCLUDE_DIRECTORIES(/usr/local/ssl/include)
-# include_directories(${BOOST_HEADER_DIR})
-
-# lib directories
-link_directories(/usr/local/lib)
-link_directories(./lib)
-
-SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
-SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)
-
-IF(ENABLE_UNITTEST)
-    FILE(COPY unittest/testdata/config.json DESTINATION ${EXECUTABLE_OUTPUT_PATH}/)
-    FILE(COPY unittest/testdata/config_bucket_test.json DESTINATION ${EXECUTABLE_OUTPUT_PATH}/)
-    FILE(COPY unittest/testdata/sevenyou.txt DESTINATION ${EXECUTABLE_OUTPUT_PATH}/)
-    FILE(COPY unittest/merge_xml_results.py DESTINATION ${EXECUTABLE_OUTPUT_PATH}/)
-    INCLUDE_DIRECTORIES(./include/googletest/include/)
-    ADD_SUBDIRECTORY(unittest)
-ENDIF()
-
-ADD_SUBDIRECTORY(src)
-ADD_SUBDIRECTORY(demo)
+set(CMAKE_VERBOSE_MAKEFILE  ON)
+
+option(BUILD_UNITTEST "Build unittest" OFF)
+option(BUILD_DEMO "Build demo" ON)
+option(BUILD_SHARED_LIB "Build shared library" OFF)
+
+if(APPLE)
+    set(OS_TYPE "APPLE")
+elseif(UNIX)
+    set(OS_TYPE "LINUX")
+elseif(WIN32)
+    set(OS_TYPE "WINDOWS")
+else()
+    message(FATAL_ERROR "unkonwn os type")
+endif()
+message(STATUS "OS type: ${OS_TYPE}")
+
+if (${OS_TYPE} STREQUAL "WINDOWS")
+    set(BUILD_TARGET "Win32")
+    if (CMAKE_CL_64)
+        set(BUILD_TARGET "x64")
+    endif()
+    message(STATUS "Build target: ${BUILD_TARGET}")
+    if (NOT DEFINED ${CMAKE_BUILD_TYPE})
+        set(CMAKE_BUILD_TYPE "Release")
+    endif()
+    message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
+
+    set(POCO_LINK_DIR ${CMAKE_SOURCE_DIR}/third_party/lib/${BUILD_TARGET}/poco)
+    set(POCO_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/third_party/include/)
+    set(POCO_LIBS PocoNetSSL PocoNet PocoCrypto PocoUtil PocoJSON PocoFoundation PocoXML)
+
+    set(SYSTEM_LIBS "")
+    #需要加该参数，不然VS会报错
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8")
+else()
+    set(POCO_LINK_DIR ${CMAKE_SOURCE_DIR}/third_party/lib/linux/poco/)
+    if (${OS_TYPE} STREQUAL "APPLE")
+        set(POCO_LINK_DIR ${CMAKE_SOURCE_DIR}/third_party/lib/macOS/poco/)
+    endif()
+        set(POCO_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/third_party/include/)
+    set(POCO_LIBS PocoNetSSL PocoNet PocoCrypto PocoUtil PocoJSON PocoFoundation PocoXML)
+
+    set(SYSTEM_LIBS stdc++ pthread)
+endif()
+
+add_subdirectory(src)
+
+if(BUILD_UNITTEST)
+    message(STATUS "Build unittest")
+
+    set(GTEST_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/third_party/include/gtest/)
+    set(GTEST_LINK_DIR ${CMAKE_SOURCE_DIR}/third_party/lib/linux/gtest/)
+    if (${OS_TYPE} STREQUAL "WINDOWS")
+        set(GTEST_LINK_DIR  ${CMAKE_SOURCE_DIR}/third_party/lib/${BUILD_TARGET}/gtest)
+    endif()
+    set(GTEST_LIBS gtest gtest_main)
+
+    set(UT_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/unittest/include/)
+
+    add_subdirectory(unittest)
+endif()
+
+if(BUILD_DEMO)
+    message(STATUS "Build demo")
+    add_subdirectory(demo)
+endif()