device: look for all possible device names on udev events

[elogind.git] / job.c

diff --git a/job.c b/job.c
index 378a85df6708652bc6fc4e6dea9edc0ba7957aad..5e250d58f0ca0b9caca6c1aaaf7b3de8c07394ec 100644 (file)
--- a/job.c
+++ b/job.c
@@ -1,5 +1,24 @@
 /*-*- 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>
 
@@ -36,6 +55,8 @@ void job_free(Job *j) {
 
         /* Detach from next 'bigger' objects */
         if (j->installed) {
+                bus_job_send_removed_signal(j);
+
                 if (j->unit->meta.job == j)
                         j->unit->meta.job = NULL;
 
@@ -44,7 +65,13 @@ void job_free(Job *j) {
         }
 
         /* Detach from next 'smaller' objects */
-        manager_transaction_unlink_job(j->manager, j);
+        manager_transaction_unlink_job(j->manager, j, true);
+
+        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);
 }
@@ -238,6 +265,45 @@ bool job_type_is_conflicting(JobType a, JobType b) {
         return (a == JOB_STOP) != (b == JOB_STOP);
 }
 
+bool job_type_is_redundant(JobType a, UnitActiveState b) {
+        switch (a) {
+
+        case JOB_START:
+                return
+                        b == UNIT_ACTIVE ||
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_STOP:
+                return
+                        b == UNIT_INACTIVE;
+
+        case JOB_VERIFY_ACTIVE:
+                return
+                        b == UNIT_ACTIVE ||
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_RELOAD:
+                return
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_RELOAD_OR_START:
+                return
+                        b == UNIT_ACTIVATING ||
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_RESTART:
+                return
+                        b == UNIT_ACTIVATING;
+
+        case JOB_TRY_RESTART:
+                return
+                        b == UNIT_ACTIVATING;
+
+        default:
+                assert_not_reached("Invalid job type");
+        }
+}
+
 bool job_is_runnable(Job *j) {
         Iterator i;
         Unit *other;
@@ -307,6 +373,7 @@ int job_run_and_invalidate(Job *j) {
                 return -EAGAIN;
 
         j->state = JOB_RUNNING;
+        job_add_to_dbus_queue(j);
 
         switch (j->type) {
 
@@ -382,13 +449,14 @@ int job_run_and_invalidate(Job *j) {
 int job_finish_and_invalidate(Job *j, bool success) {
         Unit *u;
         Unit *other;
-        UnitType t;
+        JobType 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)) {
@@ -400,7 +468,7 @@ int job_finish_and_invalidate(Job *j, bool success) {
                 j->state = JOB_RUNNING;
                 j->type = JOB_START;
 
-                job_schedule_run(j);
+                job_add_to_run_queue(j);
                 return 0;
         }
 
@@ -417,26 +485,26 @@ int job_finish_and_invalidate(Job *j, bool success) {
 
                         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))
+                                    (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);
 
                         SET_FOREACH(other, u->meta.dependencies[UNIT_SOFT_REQUIRED_BY], i)
                                 if (other->meta.job &&
                                     !other->meta.job->forced &&
-                                    (other->meta.type == JOB_START ||
-                                     other->meta.type == JOB_VERIFY_ACTIVE ||
-                                     other->meta.type == JOB_RELOAD_OR_START))
+                                    (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);
 
                 } else if (t == JOB_STOP) {
 
                         SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTS], i)
                                 if (other->meta.job &&
-                                    (t == JOB_START ||
-                                     t == JOB_VERIFY_ACTIVE ||
-                                     t == JOB_RELOAD_OR_START))
+                                    (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);
                 }
         }
@@ -444,15 +512,15 @@ int job_finish_and_invalidate(Job *j, bool success) {
         /* Try to start the next jobs that can be started */
         SET_FOREACH(other, u->meta.dependencies[UNIT_AFTER], i)
                 if (other->meta.job)
-                        job_schedule_run(other->meta.job);
+                        job_add_to_run_queue(other->meta.job);
         SET_FOREACH(other, u->meta.dependencies[UNIT_BEFORE], i)
                 if (other->meta.job)
-                        job_schedule_run(other->meta.job);
+                        job_add_to_run_queue(other->meta.job);
 
         return 0;
 }
 
-void job_schedule_run(Job *j) {
+void job_add_to_run_queue(Job *j) {
         assert(j);
         assert(j->installed);
 
@@ -463,6 +531,28 @@ void job_schedule_run(Job *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"
@@ -481,3 +571,10 @@ static const char* const job_type_table[_JOB_TYPE_MAX] = {
 };
 
 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);