1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 typedef struct Job Job;
29 typedef struct JobDependency JobDependency;
30 typedef enum JobType JobType;
31 typedef enum JobState JobState;
32 typedef enum JobMode JobMode;
40 JOB_START, /* if a unit does not support being started, we'll just wait until it becomes active */
45 JOB_RELOAD, /* if running reload */
46 JOB_RELOAD_OR_START, /* if running reload, if not running start */
48 /* Note that restarts are first treated like JOB_STOP, but
49 * then instead of finishing are patched to become
51 JOB_RESTART, /* if running stop, then start unconditionally */
52 JOB_TRY_RESTART, /* if running stop and then start */
55 _JOB_TYPE_INVALID = -1
62 _JOB_STATE_INVALID = -1
70 _JOB_MODE_INVALID = -1
73 struct JobDependency {
74 /* Encodes that the 'subject' job needs the 'object' job in
75 * some way. This structure is used only while building a transaction. */
79 LIST_FIELDS(JobDependency, subject);
80 LIST_FIELDS(JobDependency, object);
89 LIST_FIELDS(Job, transaction);
90 LIST_FIELDS(Job, run_queue);
91 LIST_FIELDS(Job, dbus_queue);
93 LIST_HEAD(JobDependency, subject_list);
94 LIST_HEAD(JobDependency, object_list);
96 /* Used for graph algs as a "I have been here" marker */
107 bool matters_to_anchor:1;
109 bool in_dbus_queue:1;
110 bool sent_dbus_new_signal:1;
113 Job* job_new(Manager *m, JobType type, Unit *unit);
114 void job_free(Job *job);
115 void job_dump(Job *j, FILE*f, const char *prefix);
117 JobDependency* job_dependency_new(Job *subject, Job *object, bool matters);
118 void job_dependency_free(JobDependency *l);
119 void job_dependency_delete(Job *subject, Job *object, bool *matters);
121 bool job_is_anchor(Job *j);
123 int job_merge(Job *j, Job *other);
125 int job_type_merge(JobType *a, JobType b);
126 bool job_type_is_mergeable(JobType a, JobType b);
127 bool job_type_is_superset(JobType a, JobType b);
128 bool job_type_is_conflicting(JobType a, JobType b);
129 bool job_type_is_redundant(JobType a, UnitActiveState b);
131 bool job_is_runnable(Job *j);
133 void job_add_to_run_queue(Job *j);
134 void job_add_to_dbus_queue(Job *j);
136 int job_run_and_invalidate(Job *j);
137 int job_finish_and_invalidate(Job *j, bool success);
139 const char* job_type_to_string(JobType t);
140 JobType job_type_from_string(const char *s);
142 const char* job_state_to_string(JobState t);
143 JobState job_state_from_string(const char *s);
145 const char* job_mode_to_string(JobMode t);
146 JobMode job_mode_from_string(const char *s);
148 char *job_dbus_path(Job *j);