如何计算正在运行的线程(pthreads)的数量? [英] How do I count the number of running threads (pthreads)?

问题描述

如果我要计算应用程序具有的线程数，则所有答案都涉及诸如top之类的外部程序.我想计算应用程序本身中的线程.

If I search for counting the number of threads an application has, all the answers involve external programs like top. I want to count the threads within the application itself.

我无法在线程创建时添加代码，因为它发生在不可变的库中.

I can't add code at the point of thread creation because it happens inside an immutable library.

我看不懂/proc.

这是在几个不同的Unices上运行的C/pthreads程序.

It's a C/pthreads program running on a few different Unices.

推荐答案

如果您无法阅读/proc，则可能会遇到麻烦，除非您的程序与另一个读取/proc

If you can't read /proc you are a bit in trouble, unless your program communicate with another program which reads /proc

如果由于可移植性问题而不想读取/proc，则可以使用像libproc这样抽象的库

If you don't want to read /proc because of portability concerns, you might use a library which abstracts that a bit, like libproc does

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