KILLPG
Section: Linux Programmer's Manual (3)
Updated: 1993-04-04
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NAME
killpg - send signal to all members of a process group
SYNOPSIS
#include <signal.h>
int killpg(pid_t pgrp, int signal);
DESCRIPTION
The
killpg()
function causes signal
signal
to be sent to all the processes in the process group
pgrp
or to the processes' own process group if
pgrp
is equal to zero.
If
pgrp
is greater than 1, it is equivalent to
kill(-pgrp,signal);
RETURN VALUE
The value returned is -1 on error, or 0 for success.
ERRORS
Errors are returned in
errno
and can be one of the following:
- EINVAL
-
for an invalid signal,
- EPERM
-
if the userid of the calling process is not equal to that of the
process the signal is sent to, and the userid is not that of the
superuser.
- ESRCH
-
for a process group which does not exist, and
CONFORMING TO
SUSv2, POSIX.1-2001
SEE ALSO
kill(2),
signal(2),
sigqueue(2),
signal(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- CONFORMING TO
-
- SEE ALSO
-
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