sd-event: rework API to support CLOCK_REALTIME_ALARM and CLOCK_BOOTTIME_ALARM, too

[elogind.git] / src / core / service.c

diff --git a/src/core/service.c b/src/core/service.c
index c5ff0dec34f73ea07bce542d063dde15a3741c51..67467b2d6d01a66cc14ac1072bf4474c60b24f42 100644 (file)
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -143,13 +143,7 @@ static void service_init(Unit *u) {
         s->socket_fd = -1;
         s->guess_main_pid = true;
 
-        exec_context_init(&s->exec_context);
-        kill_context_init(&s->kill_context);
-        cgroup_context_init(&s->cgroup_context);
-
-        RATELIMIT_INIT(s->start_limit,
-                       u->manager->default_start_limit_interval,
-                       u->manager->default_start_limit_burst);
+        RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst);
 
         s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
 }
@@ -226,8 +220,7 @@ static void service_close_socket_fd(Service *s) {
         if (s->socket_fd < 0)
                 return;
 
-        close_nointr_nofail(s->socket_fd);
-        s->socket_fd = -1;
+        s->socket_fd = safe_close(s->socket_fd);
 }
 
 static void service_connection_unref(Service *s) {
@@ -264,7 +257,12 @@ static void service_start_watchdog(Service *s) {
 
                 r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT);
         } else {
-                r = sd_event_add_monotonic(UNIT(s)->manager->event, s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, service_dispatch_watchdog, s, &s->watchdog_event_source);
+                r = sd_event_add_time(
+                                UNIT(s)->manager->event,
+                                &s->watchdog_event_source,
+                                CLOCK_MONOTONIC,
+                                s->watchdog_timestamp.monotonic + s->watchdog_usec, 0,
+                                service_dispatch_watchdog, s);
                 if (r < 0) {
                         log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r));
                         return;
@@ -302,8 +300,6 @@ static void service_done(Unit *u) {
         free(s->status_text);
         s->status_text = NULL;
 
-        cgroup_context_done(&s->cgroup_context);
-        exec_context_done(&s->exec_context);
         s->exec_runtime = exec_runtime_unref(s->exec_runtime);
         exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
         s->control_command = NULL;
@@ -354,14 +350,19 @@ static int service_arm_timer(Service *s, usec_t usec) {
                 return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
         }
 
-        return sd_event_add_monotonic(UNIT(s)->manager->event, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s, &s->timer_event_source);
+        return sd_event_add_time(
+                        UNIT(s)->manager->event,
+                        &s->timer_event_source,
+                        CLOCK_MONOTONIC,
+                        now(CLOCK_MONOTONIC) + usec, 0,
+                        service_dispatch_timer, s);
 }
 
 #ifdef HAVE_SYSV_COMPAT
 static char *sysv_translate_name(const char *name) {
         char *r;
 
-        r = new(char, strlen(name) + sizeof(".service"));
+        r = new(char, strlen(name) + strlen(".service") + 1);
         if (!r)
                 return NULL;
 
@@ -1203,11 +1204,15 @@ static int service_load(Unit *u) {
 
                 service_fix_output(s);
 
+                r = unit_patch_contexts(u);
+                if (r < 0)
+                        return r;
+
                 r = unit_add_exec_dependencies(u, &s->exec_context);
                 if (r < 0)
                         return r;
 
-                r = unit_add_default_slice(u);
+                r = unit_add_default_slice(u, &s->cgroup_context);
                 if (r < 0)
                         return r;
 
@@ -1217,27 +1222,23 @@ static int service_load(Unit *u) {
                         return r;
 #endif
 
-                if (s->bus_name) {
-                        r = unit_watch_bus_name(u, s->bus_name);
-                        if (r < 0)
-                                return r;
-                }
-
                 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
                         s->notify_access = NOTIFY_MAIN;
 
                 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
                         s->notify_access = NOTIFY_MAIN;
 
-                if (UNIT(s)->default_dependencies) {
-                        r = service_add_default_dependencies(s);
+                if (s->bus_name) {
+                        r = unit_watch_bus_name(u, s->bus_name);
                         if (r < 0)
                                 return r;
                 }
 
-                r = unit_exec_context_defaults(u, &s->exec_context);
-                if (r < 0)
-                        return r;
+                if (u->default_dependencies) {
+                        r = service_add_default_dependencies(s);
+                        if (r < 0)
+                                return r;
+                }
         }
 
         return service_verify(s);
@@ -1436,9 +1437,7 @@ static int service_search_main_pid(Service *s) {
                 log_warning_unit(UNIT(s)->id,
                                  "Failed to watch PID "PID_FMT" from service %s",
                                  pid, UNIT(s)->id);
-                return r;
-
-        return 0;
+        return r;
 }
 
 static void service_set_state(Service *s, ServiceState state) {
@@ -1772,6 +1771,7 @@ static int service_spawn(
                        UNIT(s)->manager->confirm_spawn,
                        UNIT(s)->manager->cgroup_supported,
                        path,
+                       manager_get_runtime_prefix(UNIT(s)->manager),
                        UNIT(s)->id,
                        s->watchdog_usec,
                        s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
@@ -1873,10 +1873,13 @@ static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart)
 
         s->forbid_restart = false;
 
-        /* we want fresh tmpdirs in case service is started again immediately */
+        /* We want fresh tmpdirs in case service is started again immediately */
         exec_runtime_destroy(s->exec_runtime);
         s->exec_runtime = exec_runtime_unref(s->exec_runtime);
 
+        /* Also, remove the runtime directory in */
+        exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager));
+
         /* Try to delete the pid file. At this point it will be
          * out-of-date, and some software might be confused by it, so
          * let's remove it. */
@@ -2682,8 +2685,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                         log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
                 else {
 
-                        if (s->socket_fd >= 0)
-                                close_nointr_nofail(s->socket_fd);
+                        safe_close(s->socket_fd);
                         s->socket_fd = fdset_remove(fds, fd);
                 }
         } else if (streq(key, "main-exec-status-pid")) {
@@ -3308,7 +3310,10 @@ static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *us
 
         case SERVICE_AUTO_RESTART:
                 log_info_unit(UNIT(s)->id,
-                              "%s holdoff time over, scheduling restart.", UNIT(s)->id);
+                              s->restart_usec > 0 ?
+                              "%s holdoff time over, scheduling restart." :
+                              "%s has no holdoff time, scheduling restart.",
+                              UNIT(s)->id);
                 service_enter_restart(s);
                 break;
 
@@ -3411,7 +3416,7 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
                         free(t);
         }
 
-        /* Interpet WATCHDOG= */
+        /* Interpret WATCHDOG= */
         if (strv_find(tags, "WATCHDOG=1")) {
                 log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
                 service_reset_watchdog(s);