manager: fix conflicting job check

[elogind.git] / src / manager.c

diff --git a/src/manager.c b/src/manager.c
index 6dfef713ed9abcf16a3809cf713b2c6ee00b92bd..cc12d6bf220ea7ca408c21ba002519f037723a75 100644 (file)
--- a/src/manager.c
+++ b/src/manager.c
@@ -544,6 +544,12 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
 
         manager_build_unit_path_cache(m);
 
+        /* If we will deserialize make sure that during enumeration
+         * this is already known, so we increase the counter here
+         * already */
+        if (serialization)
+                m->n_deserializing ++;
+
         /* First, enumerate what we can from all config files */
         r = manager_enumerate(m);
 
@@ -556,6 +562,11 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
         if ((q = manager_coldplug(m)) < 0)
                 r = q;
 
+        if (serialization) {
+                assert(m->n_deserializing > 0);
+                m->n_deserializing --;
+        }
+
         /* Now that the initial devices are available, let's see if we
          * can write the utmp file */
         manager_write_utmp_reboot(m);
@@ -874,7 +885,7 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
 
         /* Have we seen this before? */
         if (j->generation == generation) {
-                Job *k;
+                Job *k, *delete;
 
                 /* If the marker is NULL we have been here already and
                  * decided the job was loop-free from here. Hence
@@ -890,17 +901,17 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
                  * in there. */
                 log_warning("Found ordering cycle on %s/%s", j->unit->meta.id, job_type_to_string(j->type));
 
+                delete = NULL;
                 for (k = from; k; k = ((k->generation == generation && k->marker != k) ? k->marker : NULL)) {
 
                         log_info("Walked on cycle path to %s/%s", k->unit->meta.id, job_type_to_string(k->type));
 
-                        if (!k->installed &&
+                        if (!delete &&
+                            !k->installed &&
                             !unit_matters_to_anchor(k->unit, k)) {
                                 /* Ok, we can drop this one, so let's
                                  * do so. */
-                                log_warning("Breaking order cycle by deleting job %s/%s", k->unit->meta.id, job_type_to_string(k->type));
-                                transaction_delete_unit(m, k->unit);
-                                return -EAGAIN;
+                                delete = k;
                         }
 
                         /* Check if this in fact was the beginning of
@@ -909,6 +920,13 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
                                 break;
                 }
 
+
+                if (delete) {
+                        log_warning("Breaking ordering cycle by deleting job %s/%s", k->unit->meta.id, job_type_to_string(k->type));
+                        transaction_delete_unit(m, delete->unit);
+                        return -EAGAIN;
+                }
+
                 log_error("Unable to break cycle");
 
                 dbus_set_error(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC, "Transaction order is cyclic. See logs for details.");
@@ -1050,7 +1068,7 @@ static void transaction_minimize_impact(Manager *m) {
                                         j->type == JOB_STOP && UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(j->unit));
 
                                 changes_existing_job =
-                                        j->unit->meta.job && job_type_is_conflicting(j->type, j->unit->meta.job->state);
+                                        j->unit->meta.job && job_type_is_conflicting(j->type, j->unit->meta.job->type);
 
                                 if (!stops_running_service && !changes_existing_job)
                                         continue;
@@ -1113,6 +1131,7 @@ static int transaction_apply(Manager *m) {
 
                 job_add_to_run_queue(j);
                 job_add_to_dbus_queue(j);
+                job_start_timer(j);
         }
 
         /* As last step, kill all remaining job dependencies. */
@@ -1317,7 +1336,8 @@ static int transaction_add_job_and_dependencies(
         assert(type < _JOB_TYPE_MAX);
         assert(unit);
 
-        if (unit->meta.load_state != UNIT_LOADED) {
+        if (type != JOB_STOP &&
+            unit->meta.load_state != UNIT_LOADED) {
                 dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s failed to load. See logs for details.", unit->meta.id);
                 return -EINVAL;
         }
@@ -1947,7 +1967,7 @@ static int manager_process_signal_fd(Manager *m) {
                         static const char * const table[] = {
                                 [0] = SPECIAL_DEFAULT_TARGET,
                                 [1] = SPECIAL_RESCUE_TARGET,
-                                [2] = SPECIAL_EMERGENCY_SERVICE,
+                                [2] = SPECIAL_EMERGENCY_TARGET,
                                 [3] = SPECIAL_HALT_TARGET,
                                 [4] = SPECIAL_POWEROFF_TARGET,
                                 [5] = SPECIAL_REBOOT_TARGET
@@ -2010,7 +2030,8 @@ static int process_event(Manager *m, struct epoll_event *ev) {
                 UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w);
                 break;
 
-        case WATCH_TIMER: {
+        case WATCH_UNIT_TIMER:
+        case WATCH_JOB_TIMER: {
                 uint64_t v;
                 ssize_t k;
 
@@ -2023,7 +2044,10 @@ static int process_event(Manager *m, struct epoll_event *ev) {
                         return k < 0 ? -errno : -EIO;
                 }
 
-                UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w);
+                if (w->type == WATCH_UNIT_TIMER)
+                        UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w);
+                else
+                        job_timer_event(w->data.job, v, w);
                 break;
         }
 
@@ -2262,7 +2286,7 @@ void manager_dispatch_bus_query_pid_done(
         UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid);
 }
 
-int manager_open_serialization(FILE **_f) {
+int manager_open_serialization(Manager *m, FILE **_f) {
         char *path;
         mode_t saved_umask;
         int fd;
@@ -2270,8 +2294,15 @@ int manager_open_serialization(FILE **_f) {
 
         assert(_f);
 
-        if (asprintf(&path, "/dev/shm/systemd-%u.dump-XXXXXX", (unsigned) getpid()) < 0)
-                return -ENOMEM;
+        if (m->running_as == MANAGER_SYSTEM) {
+                mkdir_p("/dev/.systemd", 0755);
+
+                if (asprintf(&path, "/dev/.systemd/dump-%lu-XXXXXX", (unsigned long) getpid()) < 0)
+                        return -ENOMEM;
+        } else {
+                if (asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()) < 0)
+                        return -ENOMEM;
+        }
 
         saved_umask = umask(0077);
         fd = mkostemp(path, O_RDWR|O_CLOEXEC);
@@ -2334,7 +2365,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
 
         log_debug("Deserializing state...");
 
-        m->deserializing = true;
+        m->n_deserializing ++;
 
         for (;;) {
                 Unit *u;
@@ -2366,7 +2397,8 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
         r = 0;
 
 finish:
-        m->deserializing = false;
+        assert(m->n_deserializing > 0);
+        m->n_deserializing --;
 
         return r;
 }
@@ -2378,7 +2410,7 @@ int manager_reload(Manager *m) {
 
         assert(m);
 
-        if ((r = manager_open_serialization(&f)) < 0)
+        if ((r = manager_open_serialization(m, &f)) < 0)
                 return r;
 
         if (!(fds = fdset_new())) {
@@ -2402,6 +2434,8 @@ int manager_reload(Manager *m) {
         if ((q = lookup_paths_init(&m->lookup_paths, m->running_as)) < 0)
                 r = q;
 
+        m->n_deserializing ++;
+
         /* First, enumerate what we can from all config files */
         if ((q = manager_enumerate(m)) < 0)
                 r = q;
@@ -2417,6 +2451,9 @@ int manager_reload(Manager *m) {
         if ((q = manager_coldplug(m)) < 0)
                 r = q;
 
+        assert(m->n_deserializing > 0);
+        m->n_deserializing ++;
+
 finish:
         if (f)
                 fclose(f);
@@ -2443,6 +2480,16 @@ bool manager_is_booting_or_shutting_down(Manager *m) {
         return false;
 }
 
+void manager_reset_maintenance(Manager *m) {
+        Unit *u;
+        Iterator i;
+
+        assert(m);
+
+        HASHMAP_FOREACH(u, m->units, i)
+                unit_reset_maintenance(u);
+}
+
 static const char* const manager_running_as_table[_MANAGER_RUNNING_AS_MAX] = {
         [MANAGER_SYSTEM] = "system",
         [MANAGER_SESSION] = "session"