if (!pidref_is_set(&s->control_pid))
return;
- unit_unwatch_pid(UNIT(s), s->control_pid.pid);
+ unit_unwatch_pidref(UNIT(s), &s->control_pid);
pidref_done(&s->control_pid);
}
if (!pidref_is_set(&s->main_pid))
return;
- unit_unwatch_pid(UNIT(s), s->main_pid.pid);
+ unit_unwatch_pidref(UNIT(s), &s->main_pid);
pidref_done(&s->main_pid);
}
if (pidref->pid == getpid_cached())
return -EINVAL;
- if (s->main_pid.pid == pidref->pid && s->main_pid_known) {
+ if (pidref_equal(&s->main_pid, pidref) && s->main_pid_known) {
pidref_done(pidref);
return 0;
}
- if (s->main_pid.pid != pidref->pid) {
+ if (!pidref_equal(&s->main_pid, pidref)) {
service_unwatch_main_pid(s);
exec_status_start(&s->main_exec_status, pidref->pid);
}
usec_t service_restart_usec_next(Service *s) {
unsigned n_restarts_next;
- usec_t value;
assert(s);
s->restart_usec == 0 ||
s->restart_max_delay_usec == USEC_INFINITY ||
s->restart_usec >= s->restart_max_delay_usec)
- value = s->restart_usec;
- else if (n_restarts_next > s->restart_steps)
- value = s->restart_max_delay_usec;
- else {
- /* Enforced in service_verify() and above */
- assert(s->restart_max_delay_usec > s->restart_usec);
-
- /* r_i / r_0 = (r_n / r_0) ^ (i / n)
- * where,
- * r_0 : initial restart usec (s->restart_usec),
- * r_i : i-th restart usec (value),
- * r_n : maximum restart usec (s->restart_max_delay_usec),
- * i : index of the next step (n_restarts_next - 1)
- * n : num maximum steps (s->restart_steps) */
- value = (usec_t) (s->restart_usec * powl((long double) s->restart_max_delay_usec / s->restart_usec,
- (long double) (n_restarts_next - 1) / s->restart_steps));
- }
-
- log_unit_debug(UNIT(s), "Next restart interval calculated as: %s", FORMAT_TIMESPAN(value, 0));
- return value;
+ return s->restart_usec;
+
+ if (n_restarts_next > s->restart_steps)
+ return s->restart_max_delay_usec;
+
+ /* Enforced in service_verify() and above */
+ assert(s->restart_max_delay_usec > s->restart_usec);
+
+ /* r_i / r_0 = (r_n / r_0) ^ (i / n)
+ * where,
+ * r_0 : initial restart usec (s->restart_usec),
+ * r_i : i-th restart usec (value),
+ * r_n : maximum restart usec (s->restart_max_delay_usec),
+ * i : index of the next step (n_restarts_next - 1)
+ * n : num maximum steps (s->restart_steps) */
+ return (usec_t) (s->restart_usec * powl((long double) s->restart_max_delay_usec / s->restart_usec,
+ (long double) (n_restarts_next - 1) / s->restart_steps));
}
static void service_extend_event_source_timeout(Service *s, sd_event_source *source, usec_t extended) {
}
static int service_arm_timer(Service *s, bool relative, usec_t usec) {
- int r;
-
assert(s);
- if (s->timer_event_source) {
- r = (relative ? sd_event_source_set_time_relative : sd_event_source_set_time)(s->timer_event_source, usec);
- if (r < 0)
- return r;
-
- return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
- }
-
- if (usec == USEC_INFINITY)
- return 0;
-
- r = (relative ? sd_event_add_time_relative : sd_event_add_time)(
- UNIT(s)->manager->event,
- &s->timer_event_source,
- CLOCK_MONOTONIC,
- usec, 0,
- service_dispatch_timer, s);
- if (r < 0)
- return r;
-
- (void) sd_event_source_set_description(s->timer_event_source, "service-timer");
-
- return 0;
+ return unit_arm_timer(UNIT(s), &s->timer_event_source, relative, usec, service_dispatch_timer);
}
static int service_verify(Service *s) {
cgroup_context_dump(UNIT(s), f, prefix);
}
-static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) {
+static int service_is_suitable_main_pid(Service *s, PidRef *pid, int prio) {
Unit *owner;
assert(s);
- assert(pid_is_valid(pid));
+ assert(pidref_is_set(pid));
/* Checks whether the specified PID is suitable as main PID for this service. returns negative if not, 0 if the
* PID is questionnable but should be accepted if the source of configuration is trusted. > 0 if the PID is
* good */
- if (pid == getpid_cached() || pid == 1)
- return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(EPERM), "New main PID "PID_FMT" is the manager, refusing.", pid);
+ if (pid->pid == getpid_cached() || pid->pid == 1)
+ return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(EPERM), "New main PID "PID_FMT" is the manager, refusing.", pid->pid);
- if (pid == s->control_pid.pid)
- return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(EPERM), "New main PID "PID_FMT" is the control process, refusing.", pid);
+ if (pidref_equal(pid, &s->control_pid))
+ return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(EPERM), "New main PID "PID_FMT" is the control process, refusing.", pid->pid);
- if (!pid_is_alive(pid))
- return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(ESRCH), "New main PID "PID_FMT" does not exist or is a zombie.", pid);
+ if (!pid_is_alive(pid->pid))
+ return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(ESRCH), "New main PID "PID_FMT" does not exist or is a zombie.", pid->pid);
- owner = manager_get_unit_by_pid(UNIT(s)->manager, pid);
+ owner = manager_get_unit_by_pidref(UNIT(s)->manager, pid);
if (owner == UNIT(s)) {
- log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid);
+ log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid->pid);
return 1; /* Yay, it's definitely a good PID */
}
_cleanup_free_ char *k = NULL;
_cleanup_close_ int fd = -EBADF;
int r, prio;
- pid_t pid;
assert(s);
"Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m",
s->pid_file);
- r = parse_pid(k, &pid);
+ r = pidref_set_pidstr(&pidref, k);
if (r < 0)
return log_unit_full_errno(UNIT(s), prio, r, "Failed to parse PID from file %s: %m", s->pid_file);
- if (s->main_pid_known && pid == s->main_pid.pid)
+ if (s->main_pid_known && pidref_equal(&pidref, &s->main_pid))
return 0;
- r = pidref_set_pid(&pidref, pid);
- if (r < 0)
- return log_unit_full_errno(UNIT(s), prio, r, "Failed to pin PID " PID_FMT ": %m", pid);
-
- r = service_is_suitable_main_pid(s, pidref.pid, prio);
+ r = service_is_suitable_main_pid(s, &pidref, prio);
if (r < 0)
return r;
if (r == 0) {
if (r < 0)
return r;
- r = unit_watch_pid(UNIT(s), s->main_pid.pid, /* exclusive= */ false);
+ r = unit_watch_pidref(UNIT(s), &s->main_pid, /* exclusive= */ false);
if (r < 0) /* FIXME: we need to do something here */
return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", s->main_pid.pid);
}
static void service_search_main_pid(Service *s) {
- pid_t pid = 0;
+ _cleanup_(pidref_done) PidRef pid = PIDREF_NULL;
int r;
assert(s);
if (unit_search_main_pid(UNIT(s), &pid) < 0)
return;
- log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid);
- if (service_set_main_pid(s, pid) < 0)
+ log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid.pid);
+ if (service_set_main_pidref(s, &pid) < 0)
return;
- r = unit_watch_pid(UNIT(s), s->main_pid.pid, /* exclusive= */ false);
+ r = unit_watch_pidref(UNIT(s), &s->main_pid, /* exclusive= */ false);
if (r < 0)
/* FIXME: we need to do something here */
log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", s->main_pid.pid);
SERVICE_RELOAD, SERVICE_RELOAD_SIGNAL, SERVICE_RELOAD_NOTIFY,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
- r = unit_watch_pid(UNIT(s), s->main_pid.pid, /* exclusive= */ false);
+ r = unit_watch_pidref(UNIT(s), &s->main_pid, /* exclusive= */ false);
if (r < 0)
return r;
}
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_CLEANING)) {
- r = unit_watch_pid(UNIT(s), s->control_pid.pid, /* exclusive= */ false);
+ r = unit_watch_pidref(UNIT(s), &s->control_pid, /* exclusive= */ false);
if (r < 0)
return r;
}
if (r < 0)
return r;
- r = unit_watch_pid(UNIT(s), pidref.pid, /* exclusive= */ true);
+ r = unit_watch_pidref(UNIT(s), &pidref, /* exclusive= */ true);
if (r < 0)
return r;
}
if (allow_restart) {
+ usec_t restart_usec_next;
+
/* We make two state changes here: one that maps to the high-level UNIT_INACTIVE/UNIT_FAILED
* state (i.e. a state indicating deactivation), and then one that that maps to the
* high-level UNIT_STARTING state (i.e. a state indicating activation). We do this so that
if (s->restart_mode != SERVICE_RESTART_MODE_DIRECT)
service_set_state(s, restart_state);
- r = service_arm_timer(s, /* relative= */ true, service_restart_usec_next(s));
- if (r < 0)
- goto fail;
+ restart_usec_next = service_restart_usec_next(s);
+
+ r = service_arm_timer(s, /* relative= */ true, restart_usec_next);
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to install restart timer: %m");
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, /* allow_restart= */ false);
+ return;
+ }
+
+ log_unit_debug(UNIT(s), "Next restart interval calculated as: %s", FORMAT_TIMESPAN(restart_usec_next, 0));
service_set_state(s, SERVICE_AUTO_RESTART);
} else {
/* Reset TTY ownership if necessary */
exec_context_revert_tty(&s->exec_context);
-
- return;
-
-fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m");
- service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
}
static void service_enter_stop_post(Service *s, ServiceResult f) {
s->timeout_stop_usec,
EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP,
&s->control_pid);
- if (r < 0)
- goto fail;
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'stop-post' task: %m");
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ return;
+ }
service_set_state(s, SERVICE_STOP_POST);
} else
service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
-
- return;
-
-fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m");
- service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
}
static int state_to_kill_operation(Service *s, ServiceState state) {
&s->main_pid,
&s->control_pid,
s->main_pid_alien);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m");
goto fail;
+ }
if (r > 0) {
r = service_arm_timer(s, /* relative= */ true,
kill_operation == KILL_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to install timer: %m");
goto fail;
+ }
service_set_state(s, state);
} else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill)
else if (IN_SET(state, SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM) && s->kill_context.send_sigkill)
service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS);
else
- service_enter_dead(s, SERVICE_SUCCESS, true);
+ service_enter_dead(s, SERVICE_SUCCESS, /* allow_restart= */ true);
return;
fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m");
-
if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL))
service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
else
- service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, /* allow_restart= */ true);
}
static void service_enter_stop_by_notify(Service *s) {
+ int r;
+
assert(s);
(void) unit_enqueue_rewatch_pids(UNIT(s));
- service_arm_timer(s, /* relative= */ true, s->timeout_stop_usec);
+ r = service_arm_timer(s, /* relative= */ true, s->timeout_stop_usec);
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to install timer: %m");
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ return;
+ }
/* The service told us it's stopping, so it's as if we SIGTERM'd it. */
service_set_state(s, SERVICE_STOP_SIGTERM);
s->timeout_stop_usec,
EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP,
&s->control_pid);
- if (r < 0)
- goto fail;
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'stop' task: %m");
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ return;
+ }
service_set_state(s, SERVICE_STOP);
} else
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
-
- return;
-
-fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m");
- service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
}
static bool service_good(Service *s) {
}
static void service_enter_running(Service *s, ServiceResult f) {
+ int r;
+
assert(s);
if (s->result == SERVICE_SUCCESS)
service_enter_stop_by_notify(s);
else {
service_set_state(s, SERVICE_RUNNING);
- service_arm_timer(s, /* relative= */ false, service_running_timeout(s));
+
+ r = service_arm_timer(s, /* relative= */ false, service_running_timeout(s));
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to install timer: %m");
+ service_enter_running(s, SERVICE_FAILURE_RESOURCES);
+ return;
+ }
}
} else if (s->remain_after_exit)
s->timeout_start_usec,
EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP,
&s->control_pid);
- if (r < 0)
- goto fail;
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'start-post' task: %m");
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ return;
+ }
service_set_state(s, SERVICE_START_POST);
} else
service_enter_running(s, SERVICE_SUCCESS);
-
- return;
-
-fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m");
- service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
}
static void service_kill_control_process(Service *s) {
timeout,
EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG|EXEC_WRITE_CREDENTIALS|EXEC_SETENV_MONITOR_RESULT,
&pidref);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'start' task: %m");
goto fail;
+ }
if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) {
/* For simple services we immediately start
return;
fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m");
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
}
s->timeout_start_usec,
EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN|EXEC_SETENV_MONITOR_RESULT|EXEC_WRITE_CREDENTIALS,
&s->control_pid);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'start-pre' task: %m");
goto fail;
+ }
service_set_state(s, SERVICE_START_PRE);
} else
return;
fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m");
- service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, /* allow_restart= */ true);
}
static void service_enter_condition(Service *s) {
EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN,
&s->control_pid);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'exec-condition' task: %m");
goto fail;
+ }
service_set_state(s, SERVICE_CONDITION);
} else
return;
fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'exec-condition' task: %m");
- service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, /* allow_restart= */ true);
}
static void service_enter_restart(Service *s) {
/* Any units that are bound to this service must also be restarted. We use JOB_START for ourselves
* but then set JOB_RESTART_DEPENDENCIES which will enqueue JOB_RESTART for those dependency jobs. */
r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(s), JOB_RESTART_DEPENDENCIES, NULL, &error, NULL);
- if (r < 0)
- goto fail;
+ if (r < 0) {
+ log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, r));
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, /* allow_restart= */ false);
+ return;
+ }
/* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't
* fully stopped, i.e. as long as it remains up or remains in auto-start states. The user can reset
/* Notify clients about changed restart counter */
unit_add_to_dbus_queue(UNIT(s));
- return;
-
-fail:
- log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, r));
- service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
}
static void service_enter_reload_by_notify(Service *s) {
assert(s);
- service_arm_timer(s, /* relative= */ true, s->timeout_start_usec);
+ r = service_arm_timer(s, /* relative= */ true, s->timeout_start_usec);
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to install timer: %m");
+ s->reload_result = SERVICE_FAILURE_RESOURCES;
+ service_enter_running(s, SERVICE_SUCCESS);
+ return;
+ }
+
service_set_state(s, SERVICE_RELOAD_NOTIFY);
/* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */
r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error);
if (r < 0)
- log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, r));
+ log_unit_warning(UNIT(s), "Failed to schedule propagation of reload, ignoring: %s", bus_error_message(&error, r));
}
static void service_enter_reload(Service *s) {
EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP,
&s->control_pid);
if (r < 0) {
- log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m");
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn 'reload' task: %m");
goto fail;
}
service_set_state(s, SERVICE_RELOAD);
} else if (killed) {
- service_arm_timer(s, /* relative= */ true, s->timeout_start_usec);
+ r = service_arm_timer(s, /* relative= */ true, s->timeout_start_usec);
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to install timer: %m");
+ goto fail;
+ }
+
service_set_state(s, SERVICE_RELOAD_SIGNAL);
} else {
service_enter_running(s, SERVICE_SUCCESS);
(IN_SET(s->control_command_id, SERVICE_EXEC_START_PRE, SERVICE_EXEC_START) ? EXEC_SETENV_MONITOR_RESULT : 0)|
(IN_SET(s->control_command_id, SERVICE_EXEC_START_POST, SERVICE_EXEC_RELOAD, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_CONTROL_CGROUP : 0),
&s->control_pid);
- if (r < 0)
- goto fail;
-
- return;
-
-fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m");
-
- if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP))
- service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
- else if (s->state == SERVICE_STOP_POST)
- service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
- else if (s->state == SERVICE_RELOAD) {
- s->reload_result = SERVICE_FAILURE_RESOURCES;
- service_enter_running(s, SERVICE_SUCCESS);
- } else
- service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn next control task: %m");
+
+ if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP))
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ else if (s->state == SERVICE_STOP_POST)
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, /* allow_restart= */ true);
+ else if (s->state == SERVICE_RELOAD) {
+ s->reload_result = SERVICE_FAILURE_RESOURCES;
+ service_enter_running(s, SERVICE_SUCCESS);
+ } else
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ }
}
static void service_run_next_main(Service *s) {
s->timeout_start_usec,
EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG|EXEC_SETENV_MONITOR_RESULT|EXEC_WRITE_CREDENTIALS,
&pidref);
- if (r < 0)
- goto fail;
+ if (r < 0) {
+ log_unit_warning_errno(UNIT(s), r, "Failed to spawn next main task: %m");
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ return;
+ }
(void) service_set_main_pidref(s, &pidref);
- return;
-
-fail:
- log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m");
- service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
}
static int service_start(Unit *u) {
log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path);
r = path_spec_watch(s->pid_file_pathspec, service_dispatch_inotify_io);
- if (r < 0)
- goto fail;
+ if (r < 0) {
+ log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path);
+ service_unwatch_pid_file(s);
+ return r;
+ }
/* the pidfile might have appeared just before we set the watch */
log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path);
service_retry_pid_file(s);
return 0;
-fail:
- log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path);
- service_unwatch_pid_file(s);
- return r;
}
static int service_demand_pid_file(Service *s) {
_cleanup_free_ char *cc = NULL;
cc = strv_join(tags, ", ");
- log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, isempty(cc) ? "n/a" : cc);
+ log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, empty_to_na(cc));
}
/* Interpret MAINPID= */
e = strv_find_startswith(tags, "MAINPID=");
if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD, SERVICE_RELOAD_SIGNAL, SERVICE_RELOAD_NOTIFY)) {
- pid_t new_main_pid;
+ _cleanup_(pidref_done) PidRef new_main_pid = PIDREF_NULL;
- if (parse_pid(e, &new_main_pid) < 0)
- log_unit_warning(u, "Failed to parse MAINPID= field in notification message, ignoring: %s", e);
- else if (!s->main_pid_known || new_main_pid != s->main_pid.pid) {
+ r = pidref_set_pidstr(&new_main_pid, e);
+ if (r < 0)
+ log_unit_warning_errno(u, r, "Failed to parse MAINPID=%s field in notification message, ignoring: %m", e);
+ else if (!s->main_pid_known || !pidref_equal(&new_main_pid, &s->main_pid)) {
- r = service_is_suitable_main_pid(s, new_main_pid, LOG_WARNING);
+ r = service_is_suitable_main_pid(s, &new_main_pid, LOG_WARNING);
if (r == 0) {
/* The new main PID is a bit suspicious, which is OK if the sender is privileged. */
if (ucred->uid == 0) {
- log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, but we'll accept it as the request to change it came from a privileged process.", new_main_pid);
+ log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, but we'll accept it as the request to change it came from a privileged process.", new_main_pid.pid);
r = 1;
} else
- log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid);
+ log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid.pid);
}
if (r > 0) {
- (void) service_set_main_pid(s, new_main_pid);
+ (void) service_set_main_pidref(s, &new_main_pid);
- r = unit_watch_pid(UNIT(s), new_main_pid, /* exclusive= */ false);
+ r = unit_watch_pidref(UNIT(s), &s->main_pid, /* exclusive= */ false);
if (r < 0)
- log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", new_main_pid);
+ log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", s->main_pid.pid);
notify_dbus = true;
}
}
static int bus_name_pid_lookup_callback(sd_bus_message *reply, void *userdata, sd_bus_error *ret_error) {
+ _cleanup_(pidref_done) PidRef pidref = PIDREF_NULL;
const sd_bus_error *e;
Unit *u = ASSERT_PTR(userdata);
uint32_t pid;
return 1;
}
- if (!pid_is_valid(pid)) {
- log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "GetConnectionUnixProcessID() returned invalid PID");
+ r = pidref_set_pid(&pidref, pid);
+ if (r < 0) {
+ log_debug_errno(r, "GetConnectionUnixProcessID() returned invalid PID: %m");
return 1;
}
- log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, (pid_t) pid);
+ log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, pidref.pid);
- (void) service_set_main_pid(s, pid);
- (void) unit_watch_pid(UNIT(s), pid, /* exclusive= */ false);
+ (void) service_set_main_pidref(s, &pidref);
+ (void) unit_watch_pidref(UNIT(s), &s->main_pid, /* exclusive= */ false);
return 1;
}
s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
r = service_arm_timer(s, /* relative= */ true, s->exec_context.timeout_clean_usec);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(u, r, "Failed to install timer: %m");
goto fail;
+ }
r = unit_fork_and_watch_rm_rf(u, l, &s->control_pid);
- if (r < 0)
+ if (r < 0) {
+ log_unit_warning_errno(u, r, "Failed to spawn cleaning task: %m");
goto fail;
+ }
service_set_state(s, SERVICE_CLEANING);
return 0;
fail:
- log_unit_warning_errno(u, r, "Failed to initiate cleaning: %m");
s->clean_result = SERVICE_FAILURE_RESOURCES;
s->timer_event_source = sd_event_source_disable_unref(s->timer_event_source);
return r;