开源框架poco：c++ libraries

POCO C++ Libraries - Simplify C++ Development

poco的官网
https://pocoproject.org/about.html

Poco C++库简介
https://blog.csdn.net/lengye7/article/details/80782496

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doc ：

Package Index

https://macchina.io/edge.html#learnmore

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1.编译

1.1 linux下编译

这里的环境是ubuntu 16.04

<1>下载最新版本的代码:poco-poco-1.11.1-release.tar.gz

源代码下载
https://github.com/pocoproject/poco/releases/tag/poco-1.11.1-release

解压命令:

tar -zxf poco-poco-1.11.1-release.tar.gz

<2>查看readme.md文档，里面有相关的编译介绍,进行编译，操作如下:

看“Building with CMake (Linux, macOS, Windows)”

cd poco
mkdir cmake-build
cd cmake-build
cmake ..   //配置安装目录:cmake -DCMAKE_INSTALL_PREFIX=/home/user ..
cmake --build . --config Release
sudo make install

//默认安装到下面的路径

/usr/local/include/Poco/
/usr/local/lib

自己总结使用的操作命令: 

//解压命令:
tar -zxf poco-poco-1.11.1-release.tar.gz

//poco-poco-1.11.1-release名字改成poco
mv poco-poco-1.11.1-release poco
cd poco
mkdir cmake-build
cd cmake-build

//arm32位交叉编译,默认只生产so动态库文件
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../mytoolchain.cmake -DCMAKE_INSTALL_PREFIX=./../../../bin

//或者不进行交叉编译
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=./../../bin

//进行编译
make -j4
//安装到../../bin文件夹下
make install

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新建mytoolchain.cmake文件，输入以下的内容：
这里是将编译器加入到系统环境变量里了

# this one is important
SET(CMAKE_SYSTEM_NAME Linux)
#this one not so much
SET(CMAKE_SYSTEM_VERSION 1)
 
# specify the cross compiler
SET(CMAKE_C_COMPILER    arm-linux-gnueabihf-gcc)
SET(CMAKE_CXX_COMPILER  arm-linux-gnueabihf-g++)
 
# where is the target environment
SET(CMAKE_FIND_ROOT_PATH  /home/tf/work/project/rv1126_rv1109_v2.2.0_20210825/prebuilts/gcc/linux-x86/arm/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf)
 
# search for programs in the build host directories
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
 

这里采用绝对路径，编译器不用 加入到系统环境里

# this one is important
SET(CMAKE_SYSTEM_NAME Linux)
#this one not so much
SET(CMAKE_SYSTEM_VERSION 1)
 
# specify the cross compiler
# where is the target environment
#SET(CMAKE_C_COMPILER    arm-linux-gnueabihf-gcc)
#SET(CMAKE_CXX_COMPILER  arm-linux-gnueabihf-g++)
#SET(CMAKE_FIND_ROOT_PATH  /home/rk/workdir/rock/rv1126_rv1109_linux_sdk_v1.8.0_20210224/prebuilts/gcc/linux-x86/arm/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf)

#SET(CMAKE_C_COMPILER    aarch64-linux-gnu-gcc)
#SET(CMAKE_CXX_COMPILER  aarch64-linux-gnu-g++)
SET(CMAKE_C_COMPILER    /home/rk/workdir/jetson/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc)
SET(CMAKE_CXX_COMPILER  /home/rk/workdir/jetson/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++)

SET(CMAKE_FIND_ROOT_PATH  /home/rk/workdir/jetson/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/)

 
# search for programs in the build host directories
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

 2 日志Logger

POCO下的日志库封装成可以根据日期创建文件的单例类
https://blog.csdn.net/u014270740/article/details/51579002

C++ 使用Poco库实现日志操作
https://blog.csdn.net/flyfish1986/article/details/125091157
:实现了文件和终端的例子

POCO C++库学习和分析 -- 日志 (二)
https://www.dandelioncloud.cn/article/details/1503297904763797505

Poco::Logger 日志库使用示例（上）: 带性能分析
https://blog.csdn.net/Osean_li/article/details/80101706

3 数据库 

C++ 使用Poco库操作SQLite数据库
https://blog.csdn.net/flyfish1986/article/details/124864261

4 编码base64 

C++ 使用Poco库进行base64编解码
https://blog.csdn.net/flyfish1986/article/details/126125263

5 文件读写

Poco库使用:文件目录操作
https://blog.csdn.net/yang1fei2/article/details/126770096

这个网址有介绍poco的其它模块使用