-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include <assert.h>
#include <errno.h>
+#include <sys/timerfd.h>
+#include <sys/epoll.h>
#include "set.h"
#include "unit.h"
j->type = type;
j->unit = unit;
+ j->timer_watch.type = WATCH_INVALID;
+
/* We don't link it here, that's what job_dependency() is for */
return j;
/* Detach from next 'bigger' objects */
if (j->installed) {
- bus_job_send_removed_signal(j, !j->failed);
+ bus_job_send_removed_signal(j);
if (j->unit->meta.job == j) {
j->unit->meta.job = NULL;
if (j->in_dbus_queue)
LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
+ if (j->timer_watch.type != WATCH_INVALID) {
+ assert(j->timer_watch.type == WATCH_JOB_TIMER);
+ assert(j->timer_watch.data.job == j);
+ assert(j->timer_watch.fd >= 0);
+
+ assert_se(epoll_ctl(j->manager->epoll_fd, EPOLL_CTL_DEL, j->timer_watch.fd, NULL) >= 0);
+ close_nointr_nofail(j->timer_watch.fd);
+ }
+
+ free(j->bus_client);
free(j);
}
-JobDependency* job_dependency_new(Job *subject, Job *object, bool matters) {
+JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) {
JobDependency *l;
assert(object);
/* Adds a new job link, which encodes that the 'subject' job
* needs the 'object' job in some way. If 'subject' is NULL
* this means the 'anchor' job (i.e. the one the user
- * explcitily asked for) is the requester. */
+ * explicitly asked for) is the requester. */
if (!(l = new0(JobDependency, 1)))
return NULL;
l->subject = subject;
l->object = object;
l->matters = matters;
+ l->conflicts = conflicts;
if (subject)
LIST_PREPEND(JobDependency, subject, subject->subject_list, l);
free(l);
}
-void job_dependency_delete(Job *subject, Job *object, bool *matters) {
- JobDependency *l;
-
- assert(object);
-
- LIST_FOREACH(object, l, object->object_list) {
- assert(l->object == object);
-
- if (l->subject == subject)
- break;
- }
-
- if (!l) {
- if (matters)
- *matters = false;
- return;
- }
-
- if (matters)
- *matters = l->matters;
-
- job_dependency_free(l);
-}
-
void job_dump(Job *j, FILE*f, const char *prefix) {
assert(j);
assert(f);
case JOB_STOP:
return
b == UNIT_INACTIVE ||
- b == UNIT_MAINTENANCE;
+ b == UNIT_FAILED;
case JOB_VERIFY_ACTIVE:
return
/* Checks whether there is any job running for the units this
* job needs to be running after (in the case of a 'positive'
- * job type) or before (in the case of a 'negative' job type
- * . */
+ * job type) or before (in the case of a 'negative' job
+ * type. */
+
+ /* First check if there is an override */
+ if (j->ignore_order)
+ return true;
if (j->type == JOB_START ||
j->type == JOB_VERIFY_ACTIVE ||
int job_run_and_invalidate(Job *j) {
int r;
+ uint32_t id;
+ Manager *m;
assert(j);
assert(j->installed);
j->state = JOB_RUNNING;
job_add_to_dbus_queue(j);
+ /* While we execute this operation the job might go away (for
+ * example: because it is replaced by a new, conflicting
+ * job.) To make sure we don't access a freed job later on we
+ * store the id here, so that we can verify the job is still
+ * valid. */
+ id = j->id;
+ m = j->manager;
+
switch (j->type) {
case JOB_START:
r = unit_start(j->unit);
+
+ /* If this unit cannot be started, then simply
+ * wait */
if (r == -EBADR)
r = 0;
+
break;
case JOB_VERIFY_ACTIVE: {
case JOB_STOP:
r = unit_stop(j->unit);
+
+ /* If this unit cannot stopped, then simply
+ * wait. */
+ if (r == -EBADR)
+ r = 0;
break;
case JOB_RELOAD:
break;
case JOB_RELOAD_OR_START:
- if (unit_active_state(j->unit) == UNIT_ACTIVE)
+ if (unit_active_state(j->unit) == UNIT_ACTIVE) {
+ j->type = JOB_RELOAD;
r = unit_reload(j->unit);
- else
+ } else {
+ j->type = JOB_START;
r = unit_start(j->unit);
+
+ if (r == -EBADR)
+ r = 0;
+ }
break;
case JOB_RESTART: {
UnitActiveState t = unit_active_state(j->unit);
- if (t == UNIT_INACTIVE || t == UNIT_MAINTENANCE || t == UNIT_ACTIVATING) {
+ if (t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_ACTIVATING) {
j->type = JOB_START;
r = unit_start(j->unit);
} else
case JOB_TRY_RESTART: {
UnitActiveState t = unit_active_state(j->unit);
- if (t == UNIT_INACTIVE || t == UNIT_MAINTENANCE || t == UNIT_DEACTIVATING)
+ if (t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_DEACTIVATING)
r = -ENOEXEC;
else if (t == UNIT_ACTIVATING) {
j->type = JOB_START;
r = unit_start(j->unit);
- } else
+ } else {
+ j->type = JOB_RESTART;
r = unit_stop(j->unit);
+ }
break;
}
assert_not_reached("Unknown job type");
}
- if (r == -EALREADY)
- r = job_finish_and_invalidate(j, true);
- else if (r == -EAGAIN) {
- j->state = JOB_WAITING;
- return -EAGAIN;
- } else if (r < 0)
- r = job_finish_and_invalidate(j, false);
+ if ((j = manager_get_job(m, id))) {
+ if (r == -EALREADY)
+ r = job_finish_and_invalidate(j, JOB_DONE);
+ else if (r == -ENOEXEC)
+ r = job_finish_and_invalidate(j, JOB_SKIPPED);
+ else if (r == -EAGAIN)
+ j->state = JOB_WAITING;
+ else if (r < 0)
+ r = job_finish_and_invalidate(j, JOB_FAILED);
+ }
return r;
}
-int job_finish_and_invalidate(Job *j, bool success) {
+static void job_print_status_message(Unit *u, JobType t, JobResult result) {
+ assert(u);
+
+ if (t == JOB_START) {
+
+ switch (result) {
+
+ case JOB_DONE:
+ unit_status_printf(u, "Started %s.\n", unit_description(u));
+ break;
+
+ case JOB_FAILED:
+ unit_status_printf(u, "Starting %s " ANSI_HIGHLIGHT_ON "failed" ANSI_HIGHLIGHT_OFF ", see 'systemctl status %s' for details.\n", unit_description(u), u->meta.id);
+ break;
+
+ case JOB_DEPENDENCY:
+ unit_status_printf(u, "Starting %s " ANSI_HIGHLIGHT_ON "aborted" ANSI_HIGHLIGHT_OFF " because a dependency failed.\n", unit_description(u));
+ break;
+
+ case JOB_TIMEOUT:
+ unit_status_printf(u, "Starting %s " ANSI_HIGHLIGHT_ON "timed out" ANSI_HIGHLIGHT_OFF ".\n", unit_description(u), u->meta.id);
+ break;
+
+ default:
+ ;
+ }
+
+ } else if (t == JOB_STOP) {
+
+ switch (result) {
+
+ case JOB_TIMEOUT:
+ unit_status_printf(u, "Stopping %s " ANSI_HIGHLIGHT_ON "timed out" ANSI_HIGHLIGHT_OFF ".\n", unit_description(u), u->meta.id);
+ break;
+
+ case JOB_DONE:
+ case JOB_FAILED:
+ unit_status_printf(u, "Stopped %s.\n", unit_description(u));
+ break;
+
+ default:
+ ;
+ }
+ }
+}
+
+int job_finish_and_invalidate(Job *j, JobResult result) {
Unit *u;
Unit *other;
JobType t;
Iterator i;
+ bool recursed = false;
assert(j);
assert(j->installed);
- log_debug("Job %s/%s finished, success=%s", j->unit->meta.id, job_type_to_string(j->type), yes_no(success));
job_add_to_dbus_queue(j);
/* Patch restart jobs so that they become normal start jobs */
- if (success && (j->type == JOB_RESTART || j->type == JOB_TRY_RESTART)) {
+ if (result == JOB_DONE && (j->type == JOB_RESTART || j->type == JOB_TRY_RESTART)) {
log_debug("Converting job %s/%s -> %s/%s",
j->unit->meta.id, job_type_to_string(j->type),
j->unit->meta.id, job_type_to_string(JOB_START));
- j->state = JOB_RUNNING;
+ j->state = JOB_WAITING;
j->type = JOB_START;
job_add_to_run_queue(j);
- return 0;
+
+ u = j->unit;
+ goto finish;
}
- j->failed = !success;
+ j->result = result;
+
+ log_debug("Job %s/%s finished, result=%s", j->unit->meta.id, job_type_to_string(j->type), job_result_to_string(result));
+
+ if (result == JOB_FAILED)
+ j->manager->n_failed_jobs ++;
+
u = j->unit;
t = j->type;
job_free(j);
+ job_print_status_message(u, t, result);
+
/* Fail depending jobs on failure */
- if (!success) {
+ if (result != JOB_DONE) {
if (t == JOB_START ||
t == JOB_VERIFY_ACTIVE ||
if (other->meta.job &&
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
- other->meta.job->type == JOB_RELOAD_OR_START))
- job_finish_and_invalidate(other->meta.job, false);
+ other->meta.job->type == JOB_RELOAD_OR_START)) {
+ job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
+ recursed = true;
+ }
+
+ SET_FOREACH(other, u->meta.dependencies[UNIT_BOUND_BY], i)
+ if (other->meta.job &&
+ (other->meta.job->type == JOB_START ||
+ other->meta.job->type == JOB_VERIFY_ACTIVE ||
+ other->meta.job->type == JOB_RELOAD_OR_START)) {
+ job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
+ recursed = true;
+ }
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
if (other->meta.job &&
!other->meta.job->override &&
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
- other->meta.job->type == JOB_RELOAD_OR_START))
- job_finish_and_invalidate(other->meta.job, false);
+ other->meta.job->type == JOB_RELOAD_OR_START)) {
+ job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
+ recursed = true;
+ }
} else if (t == JOB_STOP) {
- SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTS], i)
+ SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTED_BY], i)
if (other->meta.job &&
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
- other->meta.job->type == JOB_RELOAD_OR_START))
- job_finish_and_invalidate(other->meta.job, false);
+ other->meta.job->type == JOB_RELOAD_OR_START)) {
+ job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
+ recursed = true;
+ }
}
}
+ /* Trigger OnFailure dependencies that are not generated by
+ * the unit itself. We don't tread JOB_CANCELED as failure in
+ * this context. And JOB_FAILURE is already handled by the
+ * unit itself. */
+ if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) {
+ log_notice("Job %s/%s failed with result '%s'.",
+ u->meta.id,
+ job_type_to_string(t),
+ job_result_to_string(result));
+
+ unit_trigger_on_failure(u);
+ }
+
+finish:
/* Try to start the next jobs that can be started */
SET_FOREACH(other, u->meta.dependencies[UNIT_AFTER], i)
if (other->meta.job)
if (other->meta.job)
job_add_to_run_queue(other->meta.job);
+ manager_check_finished(u->meta.manager);
+
+ return recursed;
+}
+
+int job_start_timer(Job *j) {
+ struct itimerspec its;
+ struct epoll_event ev;
+ int fd, r;
+ assert(j);
+
+ if (j->unit->meta.job_timeout <= 0 ||
+ j->timer_watch.type == WATCH_JOB_TIMER)
+ return 0;
+
+ assert(j->timer_watch.type == WATCH_INVALID);
+
+ if ((fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC)) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ zero(its);
+ timespec_store(&its.it_value, j->unit->meta.job_timeout);
+
+ if (timerfd_settime(fd, 0, &its, NULL) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ zero(ev);
+ ev.data.ptr = &j->timer_watch;
+ ev.events = EPOLLIN;
+
+ if (epoll_ctl(j->manager->epoll_fd, EPOLL_CTL_ADD, fd, &ev) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ j->timer_watch.type = WATCH_JOB_TIMER;
+ j->timer_watch.fd = fd;
+ j->timer_watch.data.job = j;
+
return 0;
+
+fail:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
}
void job_add_to_run_queue(Job *j) {
if (j->in_dbus_queue)
return;
- if (set_isempty(j->manager->subscribed)) {
- j->sent_dbus_new_signal = true;
- return;
- }
+ /* We don't check if anybody is subscribed here, since this
+ * job might just have been created and not yet assigned to a
+ * connection/client. */
LIST_PREPEND(Job, dbus_queue, j->manager->dbus_job_queue, j);
j->in_dbus_queue = true;
return p;
}
+void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w) {
+ assert(j);
+ assert(w == &j->timer_watch);
+
+ log_warning("Job %s/%s timed out.", j->unit->meta.id, job_type_to_string(j->type));
+ job_finish_and_invalidate(j, JOB_TIMEOUT);
+}
+
static const char* const job_state_table[_JOB_STATE_MAX] = {
[JOB_WAITING] = "waiting",
[JOB_RUNNING] = "running"
static const char* const job_mode_table[_JOB_MODE_MAX] = {
[JOB_FAIL] = "fail",
[JOB_REPLACE] = "replace",
- [JOB_ISOLATE] = "isolate"
+ [JOB_ISOLATE] = "isolate",
+ [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies",
+ [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements"
};
DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode);
+
+static const char* const job_result_table[_JOB_RESULT_MAX] = {
+ [JOB_DONE] = "done",
+ [JOB_CANCELED] = "canceled",
+ [JOB_TIMEOUT] = "timeout",
+ [JOB_FAILED] = "failed",
+ [JOB_DEPENDENCY] = "dependency",
+ [JOB_SKIPPED] = "skipped"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult);
~ianmdlvl / elogind.git / blobdiff