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    SubjectPROPOSAL: extend pipe() to support NULL argument.
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    Linux also uses pipes as references of kernel buffers. In that case,
    only one RW file descriptor will be enough, instead of inventing a new
    system call, I think extending the existing pipe() is a better idea.
    If pipe is passed with a NULL pointer, one RW file descriptor is
    returned. I have checkd the other architectures except of x86, it
    seems that not all of the platforms implement this system call with
    the prototype: int pipe(int fd[2]); and changing glibc is needed. Is
    it possible to extend pipe() in this way?

    --
    Regards,
    Changli Gao(xiaosuo@gmail.com)


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