X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fcore%2Fmanager.c;h=70917891b9f86f20309f929ec37f0b54fa1af0ca;hb=fa1b91632c5220e6589007af4cd573ca909f915a;hp=1a5d252d36a25ba8ee70c93adcbd57486c3fc116;hpb=e4746b57387ffaf8be01c177ed4bbf02c8088341;p=elogind.git

diff --git a/src/core/manager.c b/src/core/manager.c
index 1a5d252d3..70917891b 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -307,11 +307,14 @@ static int manager_setup_signals(Manager *m) {
         if (m->test_run)
                 return 0;
 
-        /* We are not interested in SIGSTOP and friends. */
         assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
 
-        assert_se(sigemptyset(&mask) == 0);
+        /* We make liberal use of realtime signals here. On
+         * Linux/glibc we have 30 of them (with the exception of Linux
+         * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
+         * (aka SIGRTMAX). */
 
+        assert_se(sigemptyset(&mask) == 0);
         sigset_add_many(&mask,
                         SIGCHLD,     /* Child died */
                         SIGTERM,     /* Reexecute daemon */
@@ -321,6 +324,7 @@ static int manager_setup_signals(Manager *m) {
                         SIGINT,      /* Kernel sends us this on control-alt-del */
                         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: isolate rescue.target */
                         SIGRTMIN+2,  /* systemd: isolate emergency.target */
@@ -328,19 +332,40 @@ static int manager_setup_signals(Manager *m) {
                         SIGRTMIN+4,  /* systemd: start poweroff.target */
                         SIGRTMIN+5,  /* systemd: start reboot.target */
                         SIGRTMIN+6,  /* systemd: start kexec.target */
+
+                        /* ... space for more special targets ... */
+
                         SIGRTMIN+13, /* systemd: Immediate halt */
                         SIGRTMIN+14, /* systemd: Immediate poweroff */
                         SIGRTMIN+15, /* systemd: Immediate reboot */
                         SIGRTMIN+16, /* systemd: Immediate kexec */
+
+                        /* ... space for more immediate system state changes ... */
+
                         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+24, /* systemd: Immediate exit (--user only) */
+
+                        /* .. one free signal here ... */
+
+#if !defined(__hppa64__) && !defined(__hppa__)
+                        /* Apparently Linux on hppa has fewer RT
+                         * signals (SIGRTMAX is SIGRTMIN+25 there),
+                         * hence let's not try to make use of them
+                         * here. Since these commands are accessible
+                         * by different means and only really a safety
+                         * net, the missing functionality on hppa
+                         * shouldn't matter. */
+
                         SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
                         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 (obsolete)*/
+
+                        /* ... one free signal here SIGRTMIN+30 ... */
+#endif
                         -1);
         assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
 
@@ -434,8 +459,6 @@ int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
         m->running_as = running_as;
         m->exit_code = _MANAGER_EXIT_CODE_INVALID;
         m->default_timer_accuracy_usec = USEC_PER_MINUTE;
-        m->start_timeout_usec = DEFAULT_MANAGER_START_TIMEOUT_USEC;
-        m->start_timeout_action = FAILURE_ACTION_POWEROFF_FORCE;
 
         m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
 
@@ -838,9 +861,6 @@ void manager_free(Manager *m) {
 
         manager_close_idle_pipe(m);
 
-        sd_event_source_unref(m->start_timeout_event_source);
-        free(m->start_timeout_reboot_arg);
-
         udev_unref(m->udev);
         sd_event_unref(m->event);
 
@@ -988,20 +1008,6 @@ static int manager_distribute_fds(Manager *m, FDSet *fds) {
         return 0;
 }
 
-static int on_start_timeout(sd_event_source *s, usec_t usec, void *userdata) {
-        Manager *m = userdata;
-
-        assert(s);
-        assert(m);
-
-        m->start_timeout_event_source = sd_event_source_unref(m->start_timeout_event_source);
-
-        log_error("Startup timed out.");
-
-        failure_action(m, m->start_timeout_action, m->start_timeout_reboot_arg);
-        return 0;
-}
-
 int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
         int r, q;
 
@@ -1074,22 +1080,6 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
                 m->send_reloading_done = true;
         }
 
-        /* Possibly set up a start timeout */
-        if (!dual_timestamp_is_set(&m->finish_timestamp)) {
-                m->start_timeout_event_source = sd_event_source_unref(m->start_timeout_event_source);
-
-                if (m->start_timeout_usec) {
-                        r = sd_event_add_time(
-                                        m->event,
-                                        &m->start_timeout_event_source,
-                                        CLOCK_MONOTONIC,
-                                        now(CLOCK_MONOTONIC) + m->start_timeout_usec, 0,
-                                        on_start_timeout, m);
-                        if (r < 0)
-                                log_error("Failed to add start timeout event: %s", strerror(-r));
-                }
-        }
-
         return r;
 }
 
@@ -2533,8 +2523,6 @@ void manager_check_finished(Manager *m) {
 
         dual_timestamp_get(&m->finish_timestamp);
 
-        m->start_timeout_event_source = sd_event_source_unref(m->start_timeout_event_source);
-
         if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
 
                 /* Note that m->kernel_usec.monotonic is always at 0,