chiark / gitweb /
execute: fix parsing of StandardError= setting
[elogind.git] / src / manager.c
index 688d9fa65b28e831217faee879cf4977a241006f..a71150d0a93e46ec4695d3afbc3a540beb2c0d6b 100644 (file)
@@ -163,6 +163,16 @@ static char** session_dirs(void) {
         } else if (home) {
                 if (asprintf(&data_home, "%s/.local/share/systemd/session", home) < 0)
                         goto fail;
+
+                /* There is really no need for two unit dirs in $HOME,
+                 * except to be fully compliant with the XDG spec. We
+                 * now try to link the two dirs, so that we can
+                 * minimize disk seeks a little. Further down we'll
+                 * then filter out this link, if it is actually is
+                 * one. */
+
+                mkdir_parents(data_home, 0777);
+                symlink("../../../.config/systemd/session", data_home);
         }
 
         if ((e = getenv("XDG_DATA_DIRS")))
@@ -283,15 +293,33 @@ static int manager_find_paths(Manager *m) {
                 }
         }
 
+        if (m->unit_path)
+                if (!strv_path_canonicalize(m->unit_path))
+                        return -ENOMEM;
+
+        if (m->sysvinit_path)
+                if (!strv_path_canonicalize(m->sysvinit_path))
+                        return -ENOMEM;
+
+        if (m->sysvrcnd_path)
+                if (!strv_path_canonicalize(m->sysvrcnd_path))
+                        return -ENOMEM;
+
         strv_uniq(m->unit_path);
         strv_uniq(m->sysvinit_path);
         strv_uniq(m->sysvrcnd_path);
 
-        assert(!strv_isempty(m->unit_path));
-        if (!(t = strv_join(m->unit_path, "\n\t")))
-                return -ENOMEM;
-        log_debug("Looking for unit files in:\n\t%s", t);
-        free(t);
+        if (!strv_isempty(m->unit_path)) {
+
+                if (!(t = strv_join(m->unit_path, "\n\t")))
+                        return -ENOMEM;
+                log_debug("Looking for unit files in:\n\t%s", t);
+                free(t);
+        } else {
+                log_debug("Ignoring unit files.");
+                strv_free(m->unit_path);
+                m->unit_path = NULL;
+        }
 
         if (!strv_isempty(m->sysvinit_path)) {
 
@@ -300,8 +328,11 @@ static int manager_find_paths(Manager *m) {
 
                 log_debug("Looking for SysV init scripts in:\n\t%s", t);
                 free(t);
-        } else
+        } else {
                 log_debug("Ignoring SysV init scripts.");
+                strv_free(m->sysvinit_path);
+                m->sysvinit_path = NULL;
+        }
 
         if (!strv_isempty(m->sysvrcnd_path)) {
 
@@ -310,8 +341,11 @@ static int manager_find_paths(Manager *m) {
 
                 log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
                 free(t);
-        } else
+        } else {
                 log_debug("Ignoring SysV rcN.d links.");
+                strv_free(m->sysvrcnd_path);
+                m->sysvrcnd_path = NULL;
+        }
 
         return 0;
 }
@@ -327,7 +361,7 @@ int manager_new(ManagerRunningAs running_as, bool confirm_spawn, Manager **_m) {
         if (!(m = new0(Manager, 1)))
                 return -ENOMEM;
 
-        m->boot_timestamp = now(CLOCK_REALTIME);
+        timestamp_get(&m->startup_timestamp);
 
         m->running_as = running_as;
         m->confirm_spawn = confirm_spawn;
@@ -930,20 +964,25 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
         /* Does a recursive sweep through the ordering graph, looking
          * for a cycle. If we find cycle we try to break it. */
 
-        /* Did we find a cycle? */
-        if (j->marker && j->generation == generation) {
+        /* Have we seen this before? */
+        if (j->generation == generation) {
                 Job *k;
 
-                /* So, we already have been here. We have a
-                 * cycle. Let's try to break it. We go backwards in
-                 * our path and try to find a suitable job to
-                 * remove. We use the marker to find our way back,
-                 * since smart how we are we stored our way back in
-                 * there. */
+                /* If the marker is NULL we have been here already and
+                 * decided the job was loop-free from here. Hence
+                 * shortcut things and return right-away. */
+                if (!j->marker)
+                        return 0;
 
+                /* So, the marker is not NULL and we already have been
+                 * here. We have a cycle. Let's try to break it. We go
+                 * backwards in our path and try to find a suitable
+                 * job to remove. We use the marker to find our way
+                 * back, since smart how we are we stored our way back
+                 * in there. */
                 log_debug("Found ordering cycle on %s/%s", j->unit->meta.id, job_type_to_string(j->type));
 
-                for (k = from; k; k = (k->generation == generation ? k->marker : NULL)) {
+                for (k = from; k; k = ((k->generation == generation && k->marker != k) ? k->marker : NULL)) {
 
                         log_debug("Walked on cycle path to %s/%s", k->unit->meta.id, job_type_to_string(k->type));
 
@@ -968,8 +1007,10 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
         }
 
         /* Make the marker point to where we come from, so that we can
-         * find our way backwards if we want to break a cycle */
-        j->marker = from;
+         * find our way backwards if we want to break a cycle. We use
+         * a special marker for the beginning: we point to
+         * ourselves. */
+        j->marker = from ? from : j;
         j->generation = generation;
 
         /* We assume that the the dependencies are bidirectional, and
@@ -1001,6 +1042,7 @@ static int transaction_verify_order(Manager *m, unsigned *generation) {
         Job *j;
         int r;
         Iterator i;
+        unsigned g;
 
         assert(m);
         assert(generation);
@@ -1008,8 +1050,10 @@ static int transaction_verify_order(Manager *m, unsigned *generation) {
         /* Check if the ordering graph is cyclic. If it is, try to fix
          * that up by dropping one of the jobs. */
 
+        g = (*generation)++;
+
         HASHMAP_FOREACH(j, m->transaction_jobs, i)
-                if ((r = transaction_verify_order_one(m, j, NULL, (*generation)++)) < 0)
+                if ((r = transaction_verify_order_one(m, j, NULL, g)) < 0)
                         return r;
 
         return 0;
@@ -1757,11 +1801,13 @@ static int manager_dispatch_sigchld(Manager *m) {
         return 0;
 }
 
-static void manager_start_target(Manager *m, const char *name) {
+static int manager_start_target(Manager *m, const char *name) {
         int r;
 
         if ((r = manager_add_job_by_name(m, JOB_START, name, JOB_REPLACE, true, NULL)) < 0)
                 log_error("Failed to enqueue %s job: %s", name, strerror(-r));
+
+        return r;
 }
 
 static int manager_process_signal_fd(Manager *m) {
@@ -1790,14 +1836,14 @@ static int manager_process_signal_fd(Manager *m) {
                         break;
 
                 case SIGTERM:
-                        if (m->running_as == MANAGER_INIT)
+                        if (m->running_as == MANAGER_INIT) {
                                 /* This is for compatibility with the
                                  * original sysvinit */
                                 m->exit_code = MANAGER_REEXECUTE;
-                        else
-                                m->exit_code = MANAGER_EXIT;
+                                break;
+                        }
 
-                        return 0;
+                        /* Fall through */
 
                 case SIGINT:
                         if (m->running_as == MANAGER_INIT) {
@@ -1805,8 +1851,13 @@ static int manager_process_signal_fd(Manager *m) {
                                 break;
                         }
 
-                        m->exit_code = MANAGER_EXIT;
-                        return 0;
+                        /* Run the exit target if there is one, if not, just exit. */
+                        if (manager_start_target(m, SPECIAL_EXIT_SERVICE) < 0) {
+                                m->exit_code = MANAGER_EXIT;
+                                return 0;
+                        }
+
+                        break;
 
                 case SIGWINCH:
                         if (m->running_as == MANAGER_INIT)
@@ -1939,6 +1990,11 @@ int manager_loop(Manager *m) {
         assert(m);
         m->exit_code = MANAGER_RUNNING;
 
+        /* There might still be some zombies hanging around from
+         * before we were exec()'ed. Leat's reap them */
+        if ((r = manager_dispatch_sigchld(m)) < 0)
+                return r;
+
         while (m->exit_code == MANAGER_RUNNING) {
                 struct epoll_event event;
                 int n;
@@ -2062,7 +2118,7 @@ void manager_write_utmp_reboot(Manager *m) {
         if (!manager_utmp_good(m))
                 return;
 
-        if ((r = utmp_put_reboot(m->boot_timestamp)) < 0) {
+        if ((r = utmp_put_reboot(m->startup_timestamp.realtime)) < 0) {
 
                 if (r != -ENOENT && r != -EROFS)
                         log_warning("Failed to write utmp/wtmp: %s", strerror(-r));