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core/killall: Add documentation about broadcast_signal()

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Benjamin Robin 2019-04-08 20:01:12 +02:00
parent 2c32f4f47d
commit 763e7b5da6
1 changed files with 6 additions and 0 deletions
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6
src/core/killall.c
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@ -252,6 +252,12 @@ int broadcast_signal(int sig, bool wait_for_exit, bool send_sighup, usec_t timeo
sigset_t mask, oldmask;
_cleanup_set_free_ Set *pids = NULL;
/* Send the specified signal to all remaining processes, if not excluded by ignore_proc().
* Return:
* - The number of processes still "alive" after the timeout (that should have been killed)
* if the function needs to wait for the end of the processes (wait_for_exit).
* - Otherwise, the number of processes to which the specified signal was sent */
if (wait_for_exit)
pids = set_new(NULL);