如何获得的PID所有派生子进程的ID在Linux下C [英] How to get all descendent child process id of pid in c in linux

问题描述

如果我叉和子进程则 EXEC 和创造更多的子进程（这本身可以创造更多的流程），我怎么从第一道工序？

If I fork and the child process then exec and creates more child processes (which themselves can create more processes) , how do I get a list of pids of all the descendent process from the first process?

有没有更好的方法，然后循环虽然的/ proc / 和检查 PPID （进程的ID父）每个进程的

Is there a better way then looping though /proc/ and checking the PPid (the parent of process's id) of each of process?

推荐答案

通过的/ proc迭代是标准的方式来做到这一点。那怎么 PS 和朋友（ pstree 等）来实现。

Iterating through /proc is the "standard" way to do this. That's how ps and friends (pstree, etc.) are implemented.

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