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manager: add log control via RT signals

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This commit is contained in:
Lennart Poettering
2011-07-23 04:15:38 +02:00
parent c0576cd6d6
commit 253ee27a0c
3 changed files with 76 additions and 25 deletions
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src/manager.c
+31
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@@ -186,6 +186,11 @@ static int manager_setup_signals(Manager *m) {
SIGRTMIN+16, /* systemd: Immediate kexec */
SIGRTMIN+20, /* systemd: enable status messages */
SIGRTMIN+21, /* systemd: disable status messages */
SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
SIGRTMIN+27, /* systemd: set log target to console */
SIGRTMIN+28, /* systemd: set log target to kmsg */
SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */
-1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
@@ -2200,6 +2205,7 @@ static int manager_process_signal_fd(Manager *m) {
break;
default: {
/* Starting SIGRTMIN+0 */
static const char * const target_table[] = {
[0] = SPECIAL_DEFAULT_TARGET,
@@ -2244,6 +2250,31 @@ static int manager_process_signal_fd(Manager *m) {
m->show_status = false;
break;
case 22:
log_set_max_level(LOG_DEBUG);
log_notice("Setting log level to debug.");
break;
case 23:
log_set_max_level(LOG_INFO);
log_notice("Setting log level to info.");
break;
case 27:
log_set_target(LOG_TARGET_CONSOLE);
log_notice("Setting log target to console.");
break;
case 28:
log_set_target(LOG_TARGET_KMSG);
log_notice("Setting log target to kmsg.");
break;
case 29:
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
log_notice("Setting log target to syslog-or-kmsg.");
break;
default:
log_warning("Got unhandled signal <%s>.", strna(signal_to_string(sfsi.ssi_signo)));
}