/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
#include <assert.h>
#include <errno.h>
+#include "set.h"
+#include "unit.h"
#include "macro.h"
-#include "job.h"
+#include "strv.h"
+#include "load-fragment.h"
+#include "load-dropin.h"
+#include "log.h"
-Job* job_new(Manager *m, JobType type, Name *name) {
+Job* job_new(Manager *m, JobType type, Unit *unit) {
Job *j;
assert(m);
assert(type < _JOB_TYPE_MAX);
- assert(name);
+ assert(unit);
if (!(j = new0(Job, 1)))
return NULL;
j->manager = m;
j->id = m->current_job_id++;
j->type = type;
- j->name = name;
+ j->unit = unit;
/* We don't link it here, that's what job_dependency() is for */
assert(j);
/* Detach from next 'bigger' objects */
- if (j->linked) {
- if (j->name->meta.job == j)
- j->name->meta.job = NULL;
+ if (j->installed) {
+ bus_job_send_removed_signal(j);
+
+ if (j->unit->meta.job == j)
+ j->unit->meta.job = NULL;
hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id));
- j->linked = false;
+ j->installed = false;
}
/* Detach from next 'smaller' objects */
manager_transaction_unlink_job(j->manager, j);
+ if (j->in_run_queue)
+ LIST_REMOVE(Job, run_queue, j->manager->run_queue, j);
+
+ if (j->in_dbus_queue)
+ LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
+
free(j);
}
l->object = object;
l->matters = matters;
- if (subject) {
- l->subject_next = subject->subject_list;
- subject->subject_list = l;
- } else {
- l->subject_next = object->manager->transaction_anchor;
- object->manager->transaction_anchor = l;
- }
-
- if (l->subject_next)
- l->subject_next->subject_prev = l;
- l->subject_prev = NULL;
+ if (subject)
+ LIST_PREPEND(JobDependency, subject, subject->subject_list, l);
+ else
+ LIST_PREPEND(JobDependency, subject, object->manager->transaction_anchor, l);
- if ((l->object_next = object->object_list))
- l->object_next->object_prev = l;
- l->object_prev = NULL;
- object->object_list = l;
+ LIST_PREPEND(JobDependency, object, object->object_list, l);
return l;
}
void job_dependency_free(JobDependency *l) {
assert(l);
- if (l->subject_prev)
- l->subject_prev->subject_next = l->subject_next;
- else if (l->subject)
- l->subject->subject_list = l->subject_next;
- else
- l->object->manager->transaction_anchor = l->subject_next;
-
- if (l->subject_next)
- l->subject_next->subject_prev = l->subject_prev;
-
- if (l->object_prev)
- l->object_prev->object_next = l->object_next;
+ if (l->subject)
+ LIST_REMOVE(JobDependency, subject, l->subject->subject_list, l);
else
- l->object->object_list = l->object_next;
+ LIST_REMOVE(JobDependency, subject, l->object->manager->transaction_anchor, l);
- if (l->object_next)
- l->object_next->object_prev = l->object_prev;
+ LIST_REMOVE(JobDependency, object, l->object->object_list, l);
free(l);
}
assert(object);
- for (l = object->object_list; l; l = l->object_next) {
+ LIST_FOREACH(object, l, object->object_list) {
assert(l->object == object);
if (l->subject == subject)
job_dependency_free(l);
}
-const char* job_type_to_string(JobType t) {
-
- static const char* const job_type_table[_JOB_TYPE_MAX] = {
- [JOB_START] = "start",
- [JOB_VERIFY_ACTIVE] = "verify-active",
- [JOB_STOP] = "stop",
- [JOB_RELOAD] = "reload",
- [JOB_RELOAD_OR_START] = "reload-or-start",
- [JOB_RESTART] = "restart",
- [JOB_TRY_RESTART] = "try-restart",
- };
-
- if (t < 0 || t >= _JOB_TYPE_MAX)
- return "n/a";
-
- return job_type_table[t];
-}
-
void job_dump(Job *j, FILE*f, const char *prefix) {
- static const char* const job_state_table[_JOB_STATE_MAX] = {
- [JOB_WAITING] = "waiting",
- [JOB_RUNNING] = "running"
- };
assert(j);
assert(f);
fprintf(f,
- "%sJob %u:\n"
+ "%s→ Job %u:\n"
"%s\tAction: %s → %s\n"
"%s\tState: %s\n"
"%s\tForced: %s\n",
prefix, j->id,
- prefix, name_id(j->name), job_type_to_string(j->type),
- prefix, job_state_table[j->state],
+ prefix, unit_id(j->unit), job_type_to_string(j->type),
+ prefix, job_state_to_string(j->state),
prefix, yes_no(j->forced));
}
assert(j);
- for (l = j->object_list; l; l = l->object_next)
+ LIST_FOREACH(object, l, j->object_list)
if (!l->subject)
return true;
return (a == JOB_STOP) != (b == JOB_STOP);
}
-bool job_type_is_applicable(JobType j, NameType n) {
- assert(j >= 0 && j < _JOB_TYPE_MAX);
- assert(n >= 0 && n < _NAME_TYPE_MAX);
-
- switch (j) {
- case JOB_VERIFY_ACTIVE:
- case JOB_START:
- return true;
-
- case JOB_STOP:
- case JOB_RESTART:
- case JOB_TRY_RESTART:
- return name_type_can_start(n);
-
- case JOB_RELOAD:
- return name_type_can_reload(n);
-
- case JOB_RELOAD_OR_START:
- return name_type_can_reload(n) && name_type_can_start(n);
-
- default:
- assert_not_reached("Invalid job type");
- }
-}
-
bool job_is_runnable(Job *j) {
- void *state;
- Name *other;
+ Iterator i;
+ Unit *other;
assert(j);
- assert(j->linked);
+ assert(j->installed);
- /* Checks whether there is any job running for the names this
+ /* 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
* . */
* dependencies, regardless whether they are
* starting or stopping something. */
- SET_FOREACH(other, j->name->meta.dependencies[NAME_AFTER], state)
+ SET_FOREACH(other, j->unit->meta.dependencies[UNIT_AFTER], i)
if (other->meta.job)
return false;
}
/* Also, if something else is being stopped and we should
* change state after it, then lets wait. */
- SET_FOREACH(other, j->name->meta.dependencies[NAME_BEFORE], state)
+ SET_FOREACH(other, j->unit->meta.dependencies[UNIT_BEFORE], i)
if (other->meta.job &&
(other->meta.job->type == JOB_STOP ||
other->meta.job->type == JOB_RESTART ||
int job_run_and_invalidate(Job *j) {
int r;
+
assert(j);
+ assert(j->installed);
- if (!job_is_runnable(j))
- return -EAGAIN;
+ if (j->in_run_queue) {
+ LIST_REMOVE(Job, run_queue, j->manager->run_queue, j);
+ j->in_run_queue = false;
+ }
if (j->state != JOB_WAITING)
return 0;
+ if (!job_is_runnable(j))
+ return -EAGAIN;
+
j->state = JOB_RUNNING;
+ job_add_to_dbus_queue(j);
switch (j->type) {
case JOB_START:
- r = name_start(j->name);
+ r = unit_start(j->unit);
if (r == -EBADR)
r = 0;
break;
case JOB_VERIFY_ACTIVE: {
- NameActiveState t = name_active_state(j->name);
- if (NAME_IS_ACTIVE_OR_RELOADING(t))
+ UnitActiveState t = unit_active_state(j->unit);
+ if (UNIT_IS_ACTIVE_OR_RELOADING(t))
r = -EALREADY;
- else if (t == NAME_ACTIVATING)
+ else if (t == UNIT_ACTIVATING)
r = -EAGAIN;
else
r = -ENOEXEC;
}
case JOB_STOP:
- r = name_stop(j->name);
+ r = unit_stop(j->unit);
break;
case JOB_RELOAD:
- r = name_reload(j->name);
+ r = unit_reload(j->unit);
break;
case JOB_RELOAD_OR_START:
- if (name_active_state(j->name) == NAME_ACTIVE)
- r = name_reload(j->name);
+ if (unit_active_state(j->unit) == UNIT_ACTIVE)
+ r = unit_reload(j->unit);
else
- r = name_start(j->name);
+ r = unit_start(j->unit);
break;
case JOB_RESTART: {
- NameActiveState t = name_active_state(j->name);
- if (t == NAME_INACTIVE || t == NAME_ACTIVATING) {
+ UnitActiveState t = unit_active_state(j->unit);
+ if (t == UNIT_INACTIVE || t == UNIT_ACTIVATING) {
j->type = JOB_START;
- r = name_start(j->name);
+ r = unit_start(j->unit);
} else
- r = name_stop(j->name);
+ r = unit_stop(j->unit);
break;
}
case JOB_TRY_RESTART: {
- NameActiveState t = name_active_state(j->name);
- if (t == NAME_INACTIVE || t == NAME_DEACTIVATING)
+ UnitActiveState t = unit_active_state(j->unit);
+ if (t == UNIT_INACTIVE || t == UNIT_DEACTIVATING)
r = -ENOEXEC;
- else if (t == NAME_ACTIVATING) {
+ else if (t == UNIT_ACTIVATING) {
j->type = JOB_START;
- r = name_start(j->name);
+ r = unit_start(j->unit);
} else
- r = name_stop(j->name);
+ r = unit_stop(j->unit);
break;
}
default:
- ;
+ assert_not_reached("Unknown job type");
}
if (r == -EALREADY)
}
int job_finish_and_invalidate(Job *j, bool success) {
- Name *n;
- void *state;
- Name *other;
- NameType t;
+ Unit *u;
+ Unit *other;
+ UnitType t;
+ Iterator i;
assert(j);
+ assert(j->installed);
+
+ log_debug("Job %s/%s finished, success=%s", unit_id(j->unit), 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)) {
+
+ log_debug("Converting job %s/%s → %s/%s",
+ unit_id(j->unit), job_type_to_string(j->type),
+ unit_id(j->unit), job_type_to_string(JOB_START));
+
j->state = JOB_RUNNING;
j->type = JOB_START;
- return job_run_and_invalidate(j);
+
+ job_add_to_run_queue(j);
+ return 0;
}
- n = j->name;
+ u = j->unit;
t = j->type;
job_free(j);
t == JOB_VERIFY_ACTIVE ||
t == JOB_RELOAD_OR_START) {
- SET_FOREACH(other, n->meta.dependencies[NAME_REQUIRED_BY], state)
+ SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY], i)
if (other->meta.job &&
(other->meta.type == JOB_START ||
other->meta.type == JOB_VERIFY_ACTIVE ||
other->meta.type == JOB_RELOAD_OR_START))
job_finish_and_invalidate(other->meta.job, false);
- SET_FOREACH(other, n->meta.dependencies[NAME_SOFT_REQUIRED_BY], state)
+ SET_FOREACH(other, u->meta.dependencies[UNIT_SOFT_REQUIRED_BY], i)
if (other->meta.job &&
!other->meta.job->forced &&
(other->meta.type == JOB_START ||
} else if (t == JOB_STOP) {
- SET_FOREACH(other, n->meta.dependencies[NAME_CONFLICTS], state)
+ SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTS], i)
if (other->meta.job &&
(t == JOB_START ||
t == JOB_VERIFY_ACTIVE ||
}
/* Try to start the next jobs that can be started */
- SET_FOREACH(other, n->meta.dependencies[NAME_AFTER], state)
+ SET_FOREACH(other, u->meta.dependencies[UNIT_AFTER], i)
if (other->meta.job)
- job_run_and_invalidate(other->meta.job);
- SET_FOREACH(other, n->meta.dependencies[NAME_BEFORE], state)
+ job_add_to_run_queue(other->meta.job);
+ SET_FOREACH(other, u->meta.dependencies[UNIT_BEFORE], i)
if (other->meta.job)
- job_run_and_invalidate(other->meta.job);
+ job_add_to_run_queue(other->meta.job);
return 0;
}
+
+void job_add_to_run_queue(Job *j) {
+ assert(j);
+ assert(j->installed);
+
+ if (j->in_run_queue)
+ return;
+
+ LIST_PREPEND(Job, run_queue, j->manager->run_queue, j);
+ j->in_run_queue = true;
+}
+
+void job_add_to_dbus_queue(Job *j) {
+ assert(j);
+ assert(j->installed);
+
+ if (j->in_dbus_queue)
+ return;
+
+ LIST_PREPEND(Job, dbus_queue, j->manager->dbus_job_queue, j);
+ j->in_dbus_queue = true;
+}
+
+char *job_dbus_path(Job *j) {
+ char *p;
+
+ assert(j);
+
+ if (asprintf(&p, "/org/freedesktop/systemd1/job/%lu", (unsigned long) j->id) < 0)
+ return NULL;
+
+ return p;
+}
+
+static const char* const job_state_table[_JOB_STATE_MAX] = {
+ [JOB_WAITING] = "waiting",
+ [JOB_RUNNING] = "running"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(job_state, JobState);
+
+static const char* const job_type_table[_JOB_TYPE_MAX] = {
+ [JOB_START] = "start",
+ [JOB_VERIFY_ACTIVE] = "verify-active",
+ [JOB_STOP] = "stop",
+ [JOB_RELOAD] = "reload",
+ [JOB_RELOAD_OR_START] = "reload-or-start",
+ [JOB_RESTART] = "restart",
+ [JOB_TRY_RESTART] = "try-restart",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(job_type, JobType);
+
+static const char* const job_mode_table[_JOB_MODE_MAX] = {
+ [JOB_FAIL] = "fail",
+ [JOB_REPLACE] = "replace"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode);
~ianmdlvl / elogind.git / blobdiff