kill(pid,0) sends a signal or not?
koryn at endace.com
Mon Jun 21 05:29:03 GMT 2004
On Sun, 20 Jun 2004, Sean McNeil wrote:
> Any info on how threads are suppose to behave when a process does a
> kill(pid,0) would be greatly appreciated.
The Single Unix Specification speaks thusly about kill():
"If sig is 0 (the null signal), error checking is performed but no signal is
actually sent. The null signal can be used to check the validity of pid."
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