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manager: hookup shutdown helper and signals

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This commit is contained in:
Lennart Poettering 2010-10-14 00:54:48 +02:00
parent 6652a2b9e5
commit 0003d1ab75
3 changed files with 30 additions and 8 deletions
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33
src/manager.c
View File

@ -164,11 +164,16 @@ static int manager_setup_signals(Manager *m) {
SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
SIGRTMIN+0, /* systemd: start default.target */
SIGRTMIN+1, /* systemd: start rescue.target */
SIGRTMIN+1, /* systemd: isolate rescue.target */
SIGRTMIN+2, /* systemd: isolate emergency.target */
SIGRTMIN+3, /* systemd: start halt.target */
SIGRTMIN+4, /* systemd: start poweroff.target */
SIGRTMIN+5, /* systemd: start reboot.target */
SIGRTMIN+6, /* systemd: start kexec.target */
SIGRTMIN+13, /* systemd: Immediate halt */
SIGRTMIN+14, /* systemd: Immediate poweroff */
SIGRTMIN+15, /* systemd: Immediate reboot */
SIGRTMIN+16, /* systemd: Immediate kexec */
-1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
@ -1987,7 +1992,7 @@ static int manager_process_signal_fd(Manager *m) {
}
/* Run the exit target if there is one, if not, just exit. */
if (manager_start_target(m, SPECIAL_EXIT_SERVICE, JOB_REPLACE) < 0) {
if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
m->exit_code = MANAGER_EXIT;
return 0;
}
@ -2058,22 +2063,38 @@ static int manager_process_signal_fd(Manager *m) {
break;
default: {
static const char * const table[] = {
/* Starting SIGRTMIN+0 */
static const char * const target_table[] = {
[0] = SPECIAL_DEFAULT_TARGET,
[1] = SPECIAL_RESCUE_TARGET,
[2] = SPECIAL_EMERGENCY_TARGET,
[3] = SPECIAL_HALT_TARGET,
[4] = SPECIAL_POWEROFF_TARGET,
[5] = SPECIAL_REBOOT_TARGET
[5] = SPECIAL_REBOOT_TARGET,
[6] = SPECIAL_KEXEC_TARGET
};
/* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
static const ManagerExitCode code_table[] = {
[0] = MANAGER_HALT,
[1] = MANAGER_POWEROFF,
[2] = MANAGER_REBOOT,
[3] = MANAGER_KEXEC
};
if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
(int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(table)) {
manager_start_target(m, table[sfsi.ssi_signo - SIGRTMIN],
(int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
manager_start_target(m, target_table[sfsi.ssi_signo - SIGRTMIN],
(sfsi.ssi_signo == 1 || sfsi.ssi_signo == 2) ? JOB_ISOLATE : JOB_REPLACE);
break;
}
if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
(int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
break;
}
log_warning("Got unhandled signal <%s>.", strna(signal_to_string(sfsi.ssi_signo)));
}
}

2
src/service.c
View File

@ -316,7 +316,7 @@ static int sysv_translate_facility(const char *name, const char *filename, char
}
/* If we don't know this name, fallback heuristics to figure
* out whether something is a target or an service alias. */
* out whether something is a target or a service alias. */
if (*name == '$')
/* Facilities starting with $ are most likely targets */

3
src/special.h
View File

@ -54,11 +54,12 @@
#define SPECIAL_SYSINIT_TARGET "sysinit.target"
#define SPECIAL_FSCK_TARGET "fsck.target"
#define SPECIAL_RESCUE_TARGET "rescue.target"
#define SPECIAL_EXIT_SERVICE "exit.service"
#define SPECIAL_EXIT_TARGET "exit.target"
#define SPECIAL_EMERGENCY_TARGET "emergency.target"
#define SPECIAL_HALT_TARGET "halt.target"
#define SPECIAL_POWEROFF_TARGET "poweroff.target"
#define SPECIAL_REBOOT_TARGET "reboot.target"
#define SPECIAL_KEXEC_TARGET "kexec.target"
#define SPECIAL_DBUS_SERVICE "dbus.service"
#define SPECIAL_DBUS_SOCKET "dbus.socket"
#define SPECIAL_GETTY_TARGET "getty.target"