[buug] checking a pid
harpo at thebackrow.net
Wed Feb 26 21:11:54 PST 2003
> Well, I need this in a C program, not as something I type into the
> shell. Setting up that full pipeline wouldn't be completely trivial.
From "man 2 kill":
int kill(pid_t pid, int sig);
If sig is 0, then no signal is sent, but error checking is still per-
... so basically, if you kill(pid, 0) and it doesn't return an error,
pid is still running.
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