OS.fork等子进程调用中FD的变化

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Python中的OS.fork，exec之类的行为，可能导致stdout所指向的FD发生变化，有时候无法在终端获得想要的输出，这时候可能需要在执行子进程的时候手工设置其FD。

参考：

http://stackoverflow.com/questions/26578799/python-send-sigint-to-subprocess-using-os-kill-as-if-pressing-ctrlc

http://ipseek.blog.51cto.com/1041109/809467

http://stackoverflow.com/questions/9211190/python-fork-pipe-and-exec

http://bytes.com/topic/python/answers/836323-problem-threading-execv

Last modification：August 14th, 2017 at 10:22 pm
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