June 6th, 2009, 03:32 AM
Fork(), Waitpid(), and Pipe() problems.
I am having some trouble with the behavior of subsequent calls of waitpid() on fork()'ed processes with stdio redirected via pipe().
In trying to emulate "echo 12345 | grep 1" the correct output is generated, but it would appear that the grep process (via execvp) never dies, so the call to waitpid() on its pid stalls forever.
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