KILLPG
Section: System Calls (2)
Updated: May 14, 1986
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NAME
killpg - send signal to a process group
SYNOPSIS
killpg(pgrp, sig)
int pgrp, sig;
DESCRIPTION
Killpg
sends the signal
sig
to the process group
pgrp.
See
sigvec(2)
for a list of signals.
The sending process and members of the process group must
have the same effective user ID, or
the sender must be the super-user.
As a single special case the continue signal SIGCONT may be sent
to any process that is a descendant of the current process.
RETURN VALUE
Upon successful completion, a value of 0 is returned. Otherwise,
a value of -1 is returned and the global variable errno
is set to indicate the error.
ERRORS
Killpg will fail and no signal will be sent if any of the
following occur:
- [EINVAL]
-
Sig is not a valid signal number.
- [ESRCH]
-
No process can be found in the process group specified by pgrp.
- [ESRCH]
-
The process group was given as 0
but the sending process does not have a process group.
- [EPERM]
-
The sending process is not the super-user and one or more
of the target processes has an effective user ID different from that
of the sending process.
SEE ALSO
kill(2), getpgrp(2), sigvec(2)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- SEE ALSO
-
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