chiark / gitweb /
transaction: print more information about conflicting jobs
[elogind.git] / src / core / manager.c
index 22a3e3ef5db273a6dc354f62a6ccd55af54b4608..45f5f70b2acd8caed560f786ce89473903996a5c 100644 (file)
@@ -80,8 +80,8 @@
 #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC)
 
 /* Initial delay and the interval for printing status messages about running jobs */
-#define JOBS_IN_PROGRESS_WAIT_SEC 5
-#define JOBS_IN_PROGRESS_PERIOD_SEC 1
+#define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC)
+#define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3)
 #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3
 
 /* Where clients shall send notification messages to */
@@ -97,12 +97,15 @@ static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t use
 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata);
 
 static int manager_watch_jobs_in_progress(Manager *m) {
+        usec_t next;
+
         assert(m);
 
         if (m->jobs_in_progress_event_source)
                 return 0;
 
-        return sd_event_add_monotonic(m->event, JOBS_IN_PROGRESS_WAIT_SEC, 0, manager_dispatch_jobs_in_progress, m, &m->jobs_in_progress_event_source);
+        next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC;
+        return sd_event_add_monotonic(m->event, next, 0, manager_dispatch_jobs_in_progress, m, &m->jobs_in_progress_event_source);
 }
 
 #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1))
@@ -136,6 +139,16 @@ static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned po
         }
 }
 
+void manager_flip_auto_status(Manager *m, bool enable) {
+        if (enable) {
+                if (m->show_status == SHOW_STATUS_AUTO)
+                        manager_set_show_status(m, SHOW_STATUS_TEMPORARY);
+        } else {
+                if (m->show_status == SHOW_STATUS_TEMPORARY)
+                        manager_set_show_status(m, SHOW_STATUS_AUTO);
+        }
+}
+
 static void manager_print_jobs_in_progress(Manager *m) {
         _cleanup_free_ char *job_of_n = NULL;
         Iterator i;
@@ -143,9 +156,13 @@ static void manager_print_jobs_in_progress(Manager *m) {
         unsigned counter = 0, print_nr;
         char cylon[6 + CYLON_BUFFER_EXTRA + 1];
         unsigned cylon_pos;
+        char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit";
+        uint64_t x;
 
         assert(m);
 
+        manager_flip_auto_status(m, true);
+
         print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs;
 
         HASHMAP_FOREACH(j, m->jobs, i)
@@ -162,14 +179,23 @@ static void manager_print_jobs_in_progress(Manager *m) {
                 cylon_pos = 14 - cylon_pos;
         draw_cylon(cylon, sizeof(cylon), 6, cylon_pos);
 
+        m->jobs_in_progress_iteration++;
+
         if (m->n_running_jobs > 1)
                 if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0)
                         job_of_n = NULL;
 
-        manager_status_printf(m, true, cylon, "%sA %s job is running for %s",
-                              strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit));
+        format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC);
+        if (job_get_timeout(j, &x) > 0)
+                format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC);
+
+        manager_status_printf(m, true, cylon,
+                              "%sA %s job is running for %s (%s / %s)",
+                              strempty(job_of_n),
+                              job_type_to_string(j->type),
+                              unit_description(j->unit),
+                              time, limit);
 
-        m->jobs_in_progress_iteration++;
 }
 
 static int manager_watch_idle_pipe(Manager *m) {
@@ -332,6 +358,23 @@ static int manager_setup_signals(Manager *m) {
         return 0;
 }
 
+static void manager_clean_environment(Manager *m) {
+        assert(m);
+
+        /* Let's remove some environment variables that we
+         * need ourselves to communicate with our clients */
+        strv_env_unset_many(
+                        m->environment,
+                        "NOTIFY_SOCKET",
+                        "MAINPID",
+                        "MANAGERPID",
+                        "LISTEN_PID",
+                        "LISTEN_FDS",
+                        "WATCHDOG_PID",
+                        "WATCHDOG_USEC",
+                        NULL);
+}
+
 static int manager_default_environment(Manager *m) {
         assert(m);
 
@@ -348,14 +391,16 @@ static int manager_default_environment(Manager *m) {
 
                 /* Import locale variables LC_*= from configuration */
                 locale_setup(&m->environment);
-        } else
+        } else {
                 /* The user manager passes its own environment
                  * along to its children. */
                 m->environment = strv_copy(environ);
+        }
 
         if (!m->environment)
                 return -ENOMEM;
 
+        manager_clean_environment(m);
         strv_sort(m->environment);
 
         return 0;
@@ -530,18 +575,16 @@ static int manager_setup_notify(Manager *m) {
 }
 
 static int manager_setup_kdbus(Manager *m) {
+#ifdef ENABLE_KDBUS
         _cleanup_free_ char *p = NULL;
+#endif
 
+#ifdef ENABLE_KDBUS
         assert(m);
 
-#ifdef ENABLE_KDBUS
         if (m->kdbus_fd >= 0)
                 return 0;
 
-        /* If there's already a bus address set, don't set up kdbus */
-        if (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"))
-                return 0;
-
         m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p);
         if (m->kdbus_fd < 0) {
                 log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd));
@@ -554,7 +597,8 @@ static int manager_setup_kdbus(Manager *m) {
          * of that directory is not visible to non-root users. This is
          * necessary to ensure that users cannot get access to busses
          * of virtualized users when no UID namespacing is used. */
-        mkdir_p_label("/dev/kdbus/ns", 0700);
+        if (m->running_as == SYSTEMD_SYSTEM)
+                mkdir_p_label("/dev/kdbus/domain", 0700);
 #endif
 
         return 0;
@@ -1608,12 +1652,12 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t
 
                         case 20:
                                 log_debug("Enabling showing of status.");
-                                manager_set_show_status(m, true);
+                                manager_set_show_status(m, SHOW_STATUS_YES);
                                 break;
 
                         case 21:
                                 log_debug("Disabling showing of status.");
-                                manager_set_show_status(m, false);
+                                manager_set_show_status(m, SHOW_STATUS_NO);
                                 break;
 
                         case 22:
@@ -1712,11 +1756,20 @@ static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32
 
 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
         Manager *m = userdata;
+        int r;
+        uint64_t next;
 
         assert(m);
+        assert(source);
 
         manager_print_jobs_in_progress(m);
-        return 0;
+
+        next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
+        r = sd_event_source_set_time(source, next);
+        if (r < 0)
+                return r;
+
+        return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
 }
 
 int manager_loop(Manager *m) {
@@ -1967,28 +2020,17 @@ void manager_dispatch_bus_name_owner_changed(
 }
 
 int manager_open_serialization(Manager *m, FILE **_f) {
-        _cleanup_free_ char *path = NULL;
+        const char *path;
         int fd = -1;
         FILE *f;
 
         assert(_f);
 
-        if (m->running_as == SYSTEMD_SYSTEM)
-                asprintf(&path, "/run/systemd/dump-"PID_FMT"-XXXXXX", getpid());
-        else
-                asprintf(&path, "/tmp/systemd-dump-"PID_FMT"-XXXXXX", getpid());
-
-        if (!path)
-                return -ENOMEM;
-
-        RUN_WITH_UMASK(0077) {
-                fd = mkostemp(path, O_RDWR|O_CLOEXEC);
-        }
-
+        path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
+        fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
         if (fd < 0)
                 return -errno;
 
-        unlink(path);
         log_debug("Serializing state to %s", path);
 
         f = fdopen(fd, "w+");
@@ -2347,6 +2389,11 @@ int manager_reload(Manager *m) {
         fclose(f);
         f = NULL;
 
+        /* Re-register notify_fd as event source */
+        q = manager_setup_notify(m);
+        if (q < 0)
+                r = q;
+
         /* Third, fire things up! */
         q = manager_coldplug(m);
         if (q < 0)
@@ -2417,11 +2464,15 @@ void manager_check_finished(Manager *m) {
                 m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
 
         if (hashmap_size(m->jobs) > 0) {
-                if (m->jobs_in_progress_event_source)
-                        sd_event_source_set_time(m->jobs_in_progress_event_source, JOBS_IN_PROGRESS_PERIOD_SEC);
+                if (m->jobs_in_progress_event_source) {
+                        uint64_t next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC;
+                        sd_event_source_set_time(m->jobs_in_progress_event_source, next);
+                }
                 return;
         }
 
+        manager_flip_auto_status(m, false);
+
         /* Notify Type=idle units that we are done now */
         m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
         manager_close_idle_pipe(m);
@@ -2510,11 +2561,29 @@ static int create_generator_dir(Manager *m, char **generator, const char *name)
                 return 0;
 
         if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
+                /* systemd --system, not running --test */
 
                 p = strappend("/run/systemd/", name);
                 if (!p)
                         return log_oom();
 
+                r = mkdir_p_label(p, 0755);
+                if (r < 0) {
+                        log_error("Failed to create generator directory %s: %s",
+                                  p, strerror(-r));
+                        free(p);
+                        return r;
+                }
+        } else if (m->running_as == SYSTEMD_USER) {
+                const char *s = NULL;
+
+                s = getenv("XDG_RUNTIME_DIR");
+                if (!s)
+                        return -EINVAL;
+                p = strjoin(s, "/systemd/", name, NULL);
+                if (!p)
+                        return log_oom();
+
                 r = mkdir_p_label(p, 0755);
                 if (r < 0) {
                         log_error("Failed to create generator directory %s: %s",
@@ -2523,6 +2592,8 @@ static int create_generator_dir(Manager *m, char **generator, const char *name)
                         return r;
                 }
         } else {
+                /* systemd --system --test */
+
                 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
                 if (!p)
                         return log_oom();
@@ -2651,7 +2722,10 @@ int manager_environment_add(Manager *m, char **minus, char **plus) {
         if (b != l)
                 strv_free(b);
 
-        m->environment = strv_sort(l);
+        m->environment = l;
+        manager_clean_environment(m);
+        strv_sort(m->environment);
+
         return 0;
 }
 
@@ -2697,15 +2771,16 @@ void manager_recheck_journal(Manager *m) {
         log_open();
 }
 
-void manager_set_show_status(Manager *m, bool b) {
+void manager_set_show_status(Manager *m, ShowStatus mode) {
         assert(m);
+        assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
 
         if (m->running_as != SYSTEMD_SYSTEM)
                 return;
 
-        m->show_status = b;
+        m->show_status = mode;
 
-        if (b)
+        if (mode > 0)
                 touch("/run/systemd/show-status");
         else
                 unlink("/run/systemd/show-status");
@@ -2720,7 +2795,7 @@ static bool manager_get_show_status(Manager *m) {
         if (m->no_console_output)
                 return false;
 
-        if (m->show_status)
+        if (m->show_status > 0)
                 return true;
 
         /* If Plymouth is running make sure we show the status, so