Problem Statement:

When executing shell commands in C++, if not managed properly, the inability to exit autonomously may lead to the proliferation of zombie processes. How can we address this issue?

This project provides an API interface goes_popen() implemented by the author to achieve the following objectives:

• True terminate() functionality:

Actively closing shell commands that do not terminate automatically, completely cleaning up the shell subprocess group; unlike some libraries, which only close the shell subprocess without terminating the command line process group.

• Blocking/Non-blocking reading of command feedback get_output() and get_output_noblock():

Many existing library interfaces, if you use get_output(), will inevitably block the main process, leading to complex process management; this repository provides non-blocking get_output() for user convenience.

• User-selectable support for stdout and stderr:

In many existing library interfaces, if you use get_output(), you cannot output to stdout to the terminal because they use pipe redirection; however, this repository allows you to print to the terminal while using get_output().

• For API usage examples, refer to src/demo.cpp.

References

Except for the partial function naming reference to the Python library subprocess package, there are no other references. The content is entirely the author's own thoughts.

If cited, please indicate the source as this account @GoesM.

Welcome to Contribute to Further Enhancements

As this is entirely the author's own creation, there may be deficiencies.

If you also wish to have a perfect concurrency management template in C++ programming like me, please submit an ISSUE or PR to contribute to the repository ^_^

面向问题：

C++执行无法自主退出的shell指令，如果不合理管理，可能会导致野进程泛滥，我们该如何解决？

本项目提供本人实现的API接口 goes_popen()以实现以下目标

• 真正意义的terminate()：

主动关闭不会自动结束的shell命令，完全清理shell子进程组；而非像某些呆瓜库一样，只是关了shell子进程，没有关命令行进程组

• 阻塞/非阻塞地读取命令反馈get_output() 和 get_output_noblock()

很多现有库的接口实现，如果你get_output()就一定会阻塞主进程，从而导致进程管理复杂；本仓库提供非阻塞get_output以供用户使用

• 用户自选 stdout和stderr支持

很多现有库的接口实现，如果你get_output()就无法stdout到终端，这是因为他们使用了管道重定向；然而本仓库支持你在get_output()的同时依然可以打印到终端

• API使用方式详见 src/demo.cpp

参考文献

本仓库除部分函数命名参考了python库的subprocess包，无其他任何参考文献，完全是作者本人拍脑袋乱写出来的。

如有引用，请注明出处为我这个帐号 @GoesM 即可。

欢迎大家帮助完善更多细节部分

因为完全是本人拍脑袋想出来的，那也势必会有缺陷之处；

如果你也和我一样希望在C++编程中拥有一个完美的并发管理模板，那请提交ISSUE或PR为仓库贡献吧 ^_^