[buug] checking a pid

[Ian Zimmerman]

Will> From "man 2 kill":

Will> SYNOPSIS #include <sys/types.h> #include <signal.h>

Will> int kill(pid_t pid, int sig);

Will> <snip...>

Will> If sig is 0, then no signal is sent, but error checking is still
Will> per- formed.

Will> ... so basically, if you kill(pid, 0) and it doesn't return an
Will> error, pid is still running.

No.  Read my original article, again.  Then perhaps read the kernel source.

-- 
Ian Zimmerman, Oakland, California, U.S.A. 
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