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irqbalance signal handling tuning

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Added sigaction for SIGTERM, SIGUSR1 and SIGUSR2 using the same handler
like SIGINT, i.e. stop and cleanup after finishing of current balancing
iteration.

Signed-off-by: Petr Holasek <pholasek@redhat.com>
This commit is contained in:
Petr Holasek 2014-12-10 17:23:30 +01:00
parent 6ae5196bc3
commit a37e7a0ab1
1 changed files with 23 additions and 10 deletions
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33
irqbalance.c
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@ -238,6 +238,15 @@ static void force_rescan(int signum)
int main(int argc, char** argv)
{
struct sigaction action, hupaction;
sigset_t sigset, old_sigset;
sigemptyset(&sigset);
sigaddset(&sigset,SIGINT);
sigaddset(&sigset,SIGHUP);
sigaddset(&sigset,SIGTERM);
sigaddset(&sigset,SIGUSR1);
sigaddset(&sigset,SIGUSR2);
sigprocmask(SIG_BLOCK, &sigset, &old_sigset);
#ifdef HAVE_GETOPT_LONG
parse_command_line(argc, argv);
@ -290,11 +299,6 @@ int main(int argc, char** argv)
HZ = 100;
}
action.sa_handler = handler;
sigemptyset(&action.sa_mask);
action.sa_flags = 0;
sigaction(SIGINT, &action, NULL);
build_object_tree();
if (debug_mode)
dump_object_tree();
@ -324,6 +328,20 @@ int main(int argc, char** argv)
}
}
action.sa_handler = handler;
sigemptyset(&action.sa_mask);
action.sa_flags = 0;
sigaction(SIGINT, &action, NULL);
sigaction(SIGTERM, &action, NULL);
sigaction(SIGUSR1, &action, NULL);
sigaction(SIGUSR2, &action, NULL);
hupaction.sa_handler = force_rescan;
sigemptyset(&hupaction.sa_mask);
hupaction.sa_flags = 0;
sigaction(SIGHUP, &hupaction, NULL);
sigprocmask(SIG_SETMASK, &old_sigset, NULL);
#ifdef HAVE_LIBCAP_NG
// Drop capabilities
@ -337,11 +355,6 @@ int main(int argc, char** argv)
parse_proc_interrupts();
parse_proc_stat();
hupaction.sa_handler = force_rescan;
sigemptyset(&hupaction.sa_mask);
hupaction.sa_flags = 0;
sigaction(SIGHUP, &hupaction, NULL);
while (keep_going) {
sleep_approx(SLEEP_INTERVAL);
log(TO_CONSOLE, LOG_INFO, "\n\n\n-----------------------------------------------------------------------------\n");