1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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
69 JOB_IGNORE_DEPENDENCIES,
71 _JOB_MODE_INVALID = -1
74 struct JobDependency {
75 /* Encodes that the 'subject' job needs the 'object' job in
76 * some way. This structure is used only while building a transaction. */
80 LIST_FIELDS(JobDependency, subject);
81 LIST_FIELDS(JobDependency, object);
91 LIST_FIELDS(Job, transaction);
92 LIST_FIELDS(Job, run_queue);
93 LIST_FIELDS(Job, dbus_queue);
95 LIST_HEAD(JobDependency, subject_list);
96 LIST_HEAD(JobDependency, object_list);
98 /* Used for graph algs as a "I have been here" marker */
109 /* Note that this bus object is not ref counted here. */
115 bool matters_to_anchor:1;
117 bool in_dbus_queue:1;
118 bool sent_dbus_new_signal:1;
123 Job* job_new(Manager *m, JobType type, Unit *unit);
124 void job_free(Job *job);
125 void job_dump(Job *j, FILE*f, const char *prefix);
127 JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts);
128 void job_dependency_free(JobDependency *l);
130 bool job_is_anchor(Job *j);
132 int job_merge(Job *j, Job *other);
134 int job_type_merge(JobType *a, JobType b);
135 bool job_type_is_mergeable(JobType a, JobType b);
136 bool job_type_is_superset(JobType a, JobType b);
137 bool job_type_is_conflicting(JobType a, JobType b);
138 bool job_type_is_redundant(JobType a, UnitActiveState b);
140 bool job_is_runnable(Job *j);
142 void job_add_to_run_queue(Job *j);
143 void job_add_to_dbus_queue(Job *j);
145 int job_start_timer(Job *j);
146 void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w);
148 int job_run_and_invalidate(Job *j);
149 int job_finish_and_invalidate(Job *j, bool success);
151 char *job_dbus_path(Job *j);
153 const char* job_type_to_string(JobType t);
154 JobType job_type_from_string(const char *s);
156 const char* job_state_to_string(JobState t);
157 JobState job_state_from_string(const char *s);
159 const char* job_mode_to_string(JobMode t);
160 JobMode job_mode_from_string(const char *s);