j->manager = unit->manager;
j->unit = unit;
+ j->type = _JOB_TYPE_INVALID;
j->timer_watch.type = WATCH_INVALID;
return j;
}
void job_uninstall(Job *j) {
+ Job **pj;
+
assert(j->installed);
- assert(j->unit->job == j);
+
+ pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
+ assert(*pj == j);
+
/* Detach from next 'bigger' objects */
/* daemon-reload should be transparent to job observers */
if (j->manager->n_reloading <= 0)
bus_job_send_removed_signal(j);
- j->unit->job = NULL;
+ *pj = NULL;
+
unit_add_to_gc_queue(j->unit);
hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id));
* patched into JOB_START after stopping the unit. So if we see a
* JOB_RESTART running, it means the unit hasn't stopped yet and at
* this time the merge is still allowed. */
- return !(t == JOB_RELOAD || t == JOB_RELOAD_OR_START);
+ return t != JOB_RELOAD;
}
static void job_merge_into_installed(Job *j, Job *other) {
assert(j->installed);
assert(j->unit == other->unit);
- j->type = job_type_lookup_merge(j->type, other->type);
- assert(j->type >= 0);
+ if (j->type != JOB_NOP)
+ job_type_merge_and_collapse(&j->type, other->type, j->unit);
+ else
+ assert(other->type == JOB_NOP);
j->override = j->override || other->override;
}
Job* job_install(Job *j) {
- Job *uj = j->unit->job;
+ Job **pj;
+ Job *uj;
assert(!j->installed);
+ assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
+
+ pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
+ uj = *pj;
if (uj) {
- if (job_type_is_conflicting(uj->type, j->type))
- job_finish_and_invalidate(uj, JOB_CANCELED);
+ if (j->type != JOB_NOP && job_type_is_conflicting(uj->type, j->type))
+ job_finish_and_invalidate(uj, JOB_CANCELED, true);
else {
/* not conflicting, i.e. mergeable */
- if (uj->state == JOB_WAITING ||
+ if (j->type == JOB_NOP || uj->state == JOB_WAITING ||
(job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) {
job_merge_into_installed(uj, j);
log_debug("Merged into installed job %s/%s as %u",
}
/* Install the job */
- j->unit->job = j;
+ *pj = j;
j->installed = true;
j->manager->n_installed_jobs ++;
log_debug("Installed new job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
return j;
}
-void job_install_deserialized(Job *j) {
+int job_install_deserialized(Job *j) {
+ Job **pj;
+
assert(!j->installed);
- if (j->unit->job) {
+ if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) {
+ log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type)));
+ return -EINVAL;
+ }
+
+ pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
+
+ if (*pj) {
log_debug("Unit %s already has a job installed. Not installing deserialized job.", j->unit->id);
- return;
+ return -EEXIST;
}
- j->unit->job = j;
+ *pj = j;
j->installed = true;
log_debug("Reinstalled deserialized job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
+ return 0;
}
JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) {
* its lower triangle to avoid duplication. We don't store the main diagonal,
* because A merged with A is simply A.
*
+ * If the resulting type is collapsed immediately afterwards (to get rid of
+ * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain),
+ * the following properties hold:
+ *
* Merging is associative! A merged with B merged with C is the same as
* A merged with C merged with B.
*
* be merged with C either.
*/
static const JobType job_merging_table[] = {
-/* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD JOB_RELOAD_OR_START JOB_RESTART JOB_TRY_RESTART */
-/************************************************************************************************************************************/
+/* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */
+/*********************************************************************************/
/*JOB_START */
/*JOB_VERIFY_ACTIVE */ JOB_START,
/*JOB_STOP */ -1, -1,
/*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1,
-/*JOB_RELOAD_OR_START*/ JOB_RELOAD_OR_START, JOB_RELOAD_OR_START, -1, JOB_RELOAD_OR_START,
-/*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART, JOB_RESTART,
-/*JOB_TRY_RESTART */ JOB_RESTART, JOB_TRY_RESTART, -1, JOB_TRY_RESTART, JOB_RESTART, JOB_RESTART,
+/*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART,
};
JobType job_type_lookup_merge(JobType a, JobType b) {
- assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX * (_JOB_TYPE_MAX - 1) / 2);
- assert(a >= 0 && a < _JOB_TYPE_MAX);
- assert(b >= 0 && b < _JOB_TYPE_MAX);
+ assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2);
+ assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING);
+ assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING);
if (a == b)
return a;
return
b == UNIT_RELOADING;
- case JOB_RELOAD_OR_START:
- return
- b == UNIT_ACTIVATING ||
- b == UNIT_RELOADING;
-
case JOB_RESTART:
return
b == UNIT_ACTIVATING;
+ default:
+ assert_not_reached("Invalid job type");
+ }
+}
+
+void job_type_collapse(JobType *t, Unit *u) {
+ UnitActiveState s;
+
+ switch (*t) {
+
case JOB_TRY_RESTART:
- return
- b == UNIT_ACTIVATING;
+ s = unit_active_state(u);
+ if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s))
+ *t = JOB_NOP;
+ else
+ *t = JOB_RESTART;
+ break;
+
+ case JOB_RELOAD_OR_START:
+ s = unit_active_state(u);
+ if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s))
+ *t = JOB_START;
+ else
+ *t = JOB_RELOAD;
+ break;
default:
- assert_not_reached("Invalid job type");
+ ;
}
}
+int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) {
+ JobType t = job_type_lookup_merge(*a, b);
+ if (t < 0)
+ return -EEXIST;
+ *a = t;
+ job_type_collapse(a, u);
+ return 0;
+}
+
bool job_is_runnable(Job *j) {
Iterator i;
Unit *other;
if (j->ignore_order)
return true;
+ if (j->type == JOB_NOP)
+ return true;
+
if (j->type == JOB_START ||
j->type == JOB_VERIFY_ACTIVE ||
- j->type == JOB_RELOAD ||
- j->type == JOB_RELOAD_OR_START) {
+ j->type == JOB_RELOAD) {
/* Immediate result is that the job is or might be
* started. In this case lets wait for the
SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i)
if (other->job &&
(other->job->type == JOB_STOP ||
- other->job->type == JOB_RESTART ||
- other->job->type == JOB_TRY_RESTART))
+ other->job->type == JOB_RESTART))
return false;
/* This means that for a service a and a service b where b
assert(j);
assert(j->installed);
+ assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
+ assert(j->in_run_queue);
- if (j->in_run_queue) {
- LIST_REMOVE(Job, run_queue, j->manager->run_queue, j);
- j->in_run_queue = false;
- }
+ LIST_REMOVE(Job, run_queue, j->manager->run_queue, j);
+ j->in_run_queue = false;
if (j->state != JOB_WAITING)
return 0;
switch (j->type) {
- case JOB_RELOAD_OR_START:
- if (unit_active_state(j->unit) == UNIT_ACTIVE) {
- job_change_type(j, JOB_RELOAD);
- r = unit_reload(j->unit);
- break;
- }
- job_change_type(j, JOB_START);
- /* fall through */
-
case JOB_START:
r = unit_start(j->unit);
break;
}
- case JOB_TRY_RESTART:
- if (UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(j->unit))) {
- r = -ENOEXEC;
- break;
- }
- job_change_type(j, JOB_RESTART);
- /* fall through */
-
case JOB_STOP:
case JOB_RESTART:
r = unit_stop(j->unit);
r = unit_reload(j->unit);
break;
+ case JOB_NOP:
+ r = -EALREADY;
+ break;
+
default:
assert_not_reached("Unknown job type");
}
- if ((j = manager_get_job(m, id))) {
+ j = manager_get_job(m, id);
+ if (j) {
if (r == -EALREADY)
- r = job_finish_and_invalidate(j, JOB_DONE);
+ r = job_finish_and_invalidate(j, JOB_DONE, true);
else if (r == -ENOEXEC)
- r = job_finish_and_invalidate(j, JOB_SKIPPED);
+ r = job_finish_and_invalidate(j, JOB_SKIPPED, true);
else if (r == -EAGAIN)
j->state = JOB_WAITING;
else if (r < 0)
- r = job_finish_and_invalidate(j, JOB_FAILED);
+ r = job_finish_and_invalidate(j, JOB_FAILED, true);
}
return r;
}
static void job_print_status_message(Unit *u, JobType t, JobResult result) {
- assert(u);
+ const UnitStatusMessageFormats *format_table;
+ const char *format;
+
+ format_table = &UNIT_VTABLE(u)->status_message_formats;
+ if (!format_table)
+ return;
if (t == JOB_START) {
+ format = format_table->finished_start_job[result];
+ if (!format)
+ return;
+
switch (result) {
case JOB_DONE:
if (u->condition_result)
- unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, "Started %s.", unit_description(u));
+ unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format, unit_description(u));
break;
case JOB_FAILED:
- unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, "Failed to start %s.", unit_description(u));
- unit_status_printf(u, NULL, "See 'systemctl status %s' for details.", u->id);
+ unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format, unit_description(u));
+ unit_status_printf(u, "", "See 'systemctl status %s' for details.", u->id);
break;
case JOB_DEPENDENCY:
- unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " ABORT" ANSI_HIGHLIGHT_OFF, "Dependency failed. Aborted start of %s.", unit_description(u));
+ unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format, unit_description(u));
break;
case JOB_TIMEOUT:
- unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, "Timed out starting %s.", unit_description(u));
+ unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format, unit_description(u));
break;
default:
;
}
- } else if (t == JOB_STOP) {
+ } else if (t == JOB_STOP || t == JOB_RESTART) {
+
+ format = format_table->finished_stop_job[result];
+ if (!format)
+ return;
switch (result) {
case JOB_TIMEOUT:
- unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, "Timed out stopping %s.", unit_description(u));
+ unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format, unit_description(u));
break;
case JOB_DONE:
case JOB_FAILED:
- unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, "Stopped %s.", unit_description(u));
+ unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format, unit_description(u));
break;
default:
;
}
+
+ } else if (t == JOB_VERIFY_ACTIVE) {
+
+ /* When verify-active detects the unit is inactive, report it.
+ * Most likely a DEPEND warning from a requisiting unit will
+ * occur next and it's nice to see what was requisited. */
+ if (result == JOB_SKIPPED)
+ unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active.", unit_description(u));
}
}
-int job_finish_and_invalidate(Job *j, JobResult result) {
+int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) {
Unit *u;
Unit *other;
JobType t;
Iterator i;
- bool recursed = false;
assert(j);
assert(j->installed);
+ assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
+
+ u = j->unit;
+ t = j->type;
+
+ j->result = result;
+
+ log_debug("Job %s/%s finished, result=%s", u->id, job_type_to_string(t), job_result_to_string(result));
+
+ job_print_status_message(u, t, result);
job_add_to_dbus_queue(j);
/* Patch restart jobs so that they become normal start jobs */
- if (result == JOB_DONE && j->type == JOB_RESTART) {
+ if (result == JOB_DONE && t == JOB_RESTART) {
job_change_type(j, JOB_START);
j->state = JOB_WAITING;
job_add_to_run_queue(j);
- u = j->unit;
goto finish;
}
- j->result = result;
-
- log_debug("Job %s/%s finished, result=%s", j->unit->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_uninstall(j);
job_free(j);
- job_print_status_message(u, t, result);
-
/* Fail depending jobs on failure */
- if (result != JOB_DONE) {
+ if (result != JOB_DONE && recursive) {
if (t == JOB_START ||
- t == JOB_VERIFY_ACTIVE ||
- t == JOB_RELOAD_OR_START) {
+ t == JOB_VERIFY_ACTIVE) {
SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i)
if (other->job &&
(other->job->type == JOB_START ||
- other->job->type == JOB_VERIFY_ACTIVE ||
- other->job->type == JOB_RELOAD_OR_START)) {
- job_finish_and_invalidate(other->job, JOB_DEPENDENCY);
- recursed = true;
- }
+ other->job->type == JOB_VERIFY_ACTIVE))
+ job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i)
if (other->job &&
(other->job->type == JOB_START ||
- other->job->type == JOB_VERIFY_ACTIVE ||
- other->job->type == JOB_RELOAD_OR_START)) {
- job_finish_and_invalidate(other->job, JOB_DEPENDENCY);
- recursed = true;
- }
+ other->job->type == JOB_VERIFY_ACTIVE))
+ job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
if (other->job &&
!other->job->override &&
(other->job->type == JOB_START ||
- other->job->type == JOB_VERIFY_ACTIVE ||
- other->job->type == JOB_RELOAD_OR_START)) {
- job_finish_and_invalidate(other->job, JOB_DEPENDENCY);
- recursed = true;
- }
+ other->job->type == JOB_VERIFY_ACTIVE))
+ job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
} else if (t == JOB_STOP) {
SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i)
if (other->job &&
(other->job->type == JOB_START ||
- other->job->type == JOB_VERIFY_ACTIVE ||
- other->job->type == JOB_RELOAD_OR_START)) {
- job_finish_and_invalidate(other->job, JOB_DEPENDENCY);
- recursed = true;
- }
+ other->job->type == JOB_VERIFY_ACTIVE))
+ job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
}
}
manager_check_finished(u->manager);
- return recursed;
+ return 0;
}
int job_start_timer(Job *j) {
assert(w == &j->timer_watch);
log_warning("Job %s/%s timed out.", j->unit->id, job_type_to_string(j->type));
- job_finish_and_invalidate(j, JOB_TIMEOUT);
+ job_finish_and_invalidate(j, JOB_TIMEOUT, true);
}
int job_serialize(Job *j, FILE *f, FDSet *fds) {
JobType t = job_type_from_string(v);
if (t < 0)
log_debug("Failed to parse job type %s", v);
+ else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION)
+ log_debug("Cannot deserialize job of type %s", v);
else
j->type = t;
} else if (streq(l, "job-state")) {
[JOB_RELOAD_OR_START] = "reload-or-start",
[JOB_RESTART] = "restart",
[JOB_TRY_RESTART] = "try-restart",
+ [JOB_NOP] = "nop",
};
DEFINE_STRING_TABLE_LOOKUP(job_type, JobType);
~ianmdlvl / elogind.git / blobdiff