killpg: vyslat signál všem členům procesní skupiny

Originální popis anglicky: killpg - send signal to all members of a process group

Návod, kniha: Linux Programmer's Manual

STRUČNĚ

#include <signal.h>
 
int killpg(pid_t pgrp, int signal);

POPIS / INSTRUKCE

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);

NÁVRATOVÁ HODNOTA

The value returned is -1 on error, or 0 for success.

CHYBY / ERRORY

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

ODPOVÍDAJÍCÍ

POSIX

SOUVISEJÍCÍ

kill(2), signal(2), signal(7)