Hi,
I am working with the subprocess.py module in Python 2.4.4 and I am
confused about it's functionality. It uses the standard pipe-fork-exec
method to start a subprocess:
# create pipes
pid = fork()
if pid == 0:
# child
exec(...)
# parent
status = waitpid(pid, 0)
From my experience, this primitive will fail with 'no child
processes' at the waitpid call if the forked child dies very quickly -
before the parent is scheduled back for execution. This seems to happen
because Python has a default SIGCHLD handler that, in this case, will
reap the process before the parent has the chance to do it.
I would like to know if this is correct, or am I missing something here?
---
Rafael.
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