+static int manager_watch_jobs_in_progress(Manager *m) {
+ 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);
+}
+
+#define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1))
+
+static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) {
+ char *p = buffer;
+
+ assert(buflen >= CYLON_BUFFER_EXTRA + width + 1);
+ assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */
+
+ if (pos > 1) {
+ if (pos > 2)
+ p = mempset(p, ' ', pos-2);
+ p = stpcpy(p, ANSI_RED_ON);
+ *p++ = '*';
+ }
+
+ if (pos > 0 && pos <= width) {
+ p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON);
+ *p++ = '*';
+ }
+
+ p = stpcpy(p, ANSI_HIGHLIGHT_OFF);
+
+ if (pos < width) {
+ p = stpcpy(p, ANSI_RED_ON);
+ *p++ = '*';
+ if (pos < width-1)
+ p = mempset(p, ' ', width-1-pos);
+ strcpy(p, ANSI_HIGHLIGHT_OFF);
+ }
+}
+
+static void manager_print_jobs_in_progress(Manager *m) {
+ _cleanup_free_ char *job_of_n = NULL;
+ Iterator i;
+ Job *j;
+ unsigned counter = 0, print_nr;
+ char cylon[6 + CYLON_BUFFER_EXTRA + 1];
+ unsigned cylon_pos;
+
+ assert(m);
+
+ print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs;
+
+ HASHMAP_FOREACH(j, m->jobs, i)
+ if (j->state == JOB_RUNNING && counter++ == print_nr)
+ break;
+
+ /* m->n_running_jobs must be consistent with the contents of m->jobs,
+ * so the above loop must have succeeded in finding j. */
+ assert(counter == print_nr + 1);
+ assert(j);
+
+ cylon_pos = m->jobs_in_progress_iteration % 14;
+ if (cylon_pos >= 8)
+ cylon_pos = 14 - cylon_pos;
+ draw_cylon(cylon, sizeof(cylon), 6, cylon_pos);
+
+ 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));
+
+ m->jobs_in_progress_iteration++;
+}
+
+static int manager_watch_idle_pipe(Manager *m) {
+ int r;
+
+ assert(m);
+
+ if (m->idle_pipe_event_source)
+ return 0;
+
+ if (m->idle_pipe[2] < 0)
+ return 0;
+
+ r = sd_event_add_io(m->event, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m, &m->idle_pipe_event_source);
+ if (r < 0) {
+ log_error("Failed to watch idle pipe: %s", strerror(-r));
+ return r;
+ }
+
+ return 0;
+}
+
+static void manager_close_idle_pipe(Manager *m) {
+ assert(m);
+
+ close_pipe(m->idle_pipe);
+ close_pipe(m->idle_pipe + 2);
+}
+
+static int manager_setup_time_change(Manager *m) {
+ int r;
+
+ /* We only care for the cancellation event, hence we set the
+ * timeout to the latest possible value. */
+ struct itimerspec its = {
+ .it_value.tv_sec = TIME_T_MAX,
+ };
+
+ assert(m);
+ assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX));
+
+ /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever
+ * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */
+
+ m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);
+ if (m->time_change_fd < 0) {
+ log_error("Failed to create timerfd: %m");
+ return -errno;
+ }
+
+ if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {
+ log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");
+ close_nointr_nofail(m->time_change_fd);
+ m->time_change_fd = -1;
+ return 0;
+ }
+
+ r = sd_event_add_io(m->event, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m, &m->time_change_event_source);
+ if (r < 0) {
+ log_error("Failed to create time change event source: %s", strerror(-r));
+ return r;
+ }
+
+ log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd.");
+
+ return 0;
+}
+