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manager: start D-Bus on SIGUSR2

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This commit is contained in:
Lennart Poettering 2010-04-13 03:20:22 +02:00
parent 57c0c30e73
commit 57ee42cefd
1 changed files with 22 additions and 3 deletions
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25
manager.c
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@ -84,13 +84,13 @@ static int manager_setup_signals(Manager *m) {
assert_se(sigemptyset(&mask) == 0);
assert_se(sigaddset(&mask, SIGCHLD) == 0);
assert_se(sigaddset(&mask, SIGINT) == 0); /* Kernel sends us this on control-alt-del */
assert_se(sigaddset(&mask, SIGWINCH) == 0); /* Kernel sends us this on kbrequest (alt-arrowup) */
assert_se(sigaddset(&mask, SIGTERM) == 0);
assert_se(sigaddset(&mask, SIGHUP) == 0);
assert_se(sigaddset(&mask, SIGUSR1) == 0);
assert_se(sigaddset(&mask, SIGUSR2) == 0);
assert_se(sigaddset(&mask, SIGPWR) == 0);
assert_se(sigaddset(&mask, SIGINT) == 0); /* Kernel sends us this on control-alt-del */
assert_se(sigaddset(&mask, SIGWINCH) == 0); /* Kernel sends us this on kbrequest (alt-arrowup) */
assert_se(sigaddset(&mask, SIGPWR) == 0); /* Some kernel drivers and upsd send us this on power failure */
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
m->signal_watch.type = WATCH_SIGNAL;
@ -1583,6 +1583,25 @@ static int manager_process_signal_fd(Manager *m, bool *quit) {
manager_dump_jobs(m, stdout, "\t");
break;
case SIGUSR2: {
Unit *u;
u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);
if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {
log_info("Trying to reconnect to bus...");
bus_init_system(m);
bus_init_api(m);
}
if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {
log_info("Loading D-Bus service...");
manager_start_target(m, SPECIAL_DBUS_SERVICE);
}
break;
}
default:
log_info("Got unhandled signal <%s>.", strsignal(sfsi.ssi_signo));
}