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
69 _JOB_MODE_INVALID
= -1
72 struct JobDependency
{
73 /* Encodes that the 'subject' job needs the 'object' job in
74 * some way. This structure is used only while building a transaction. */
78 LIST_FIELDS(JobDependency
, subject
);
79 LIST_FIELDS(JobDependency
, object
);
88 LIST_FIELDS(Job
, transaction
);
89 LIST_FIELDS(Job
, run_queue
);
90 LIST_FIELDS(Job
, dbus_queue
);
92 LIST_HEAD(JobDependency
, subject_list
);
93 LIST_HEAD(JobDependency
, object_list
);
95 /* Used for graph algs as a "I have been here" marker */
106 bool matters_to_anchor
:1;
108 bool in_dbus_queue
:1;
109 bool sent_dbus_new_signal
:1;
112 Job
* job_new(Manager
*m
, JobType type
, Unit
*unit
);
113 void job_free(Job
*job
);
114 void job_dump(Job
*j
, FILE*f
, const char *prefix
);
116 JobDependency
* job_dependency_new(Job
*subject
, Job
*object
, bool matters
);
117 void job_dependency_free(JobDependency
*l
);
118 void job_dependency_delete(Job
*subject
, Job
*object
, bool *matters
);
120 bool job_is_anchor(Job
*j
);
122 int job_merge(Job
*j
, Job
*other
);
124 int job_type_merge(JobType
*a
, JobType b
);
125 bool job_type_is_mergeable(JobType a
, JobType b
);
126 bool job_type_is_superset(JobType a
, JobType b
);
127 bool job_type_is_conflicting(JobType a
, JobType b
);
128 bool job_type_is_redundant(JobType a
, UnitActiveState b
);
130 bool job_is_runnable(Job
*j
);
132 void job_add_to_run_queue(Job
*j
);
133 void job_add_to_dbus_queue(Job
*j
);
135 int job_run_and_invalidate(Job
*j
);
136 int job_finish_and_invalidate(Job
*j
, bool success
);
138 const char* job_type_to_string(JobType t
);
139 JobType
job_type_from_string(const char *s
);
141 const char* job_state_to_string(JobState t
);
142 JobState
job_state_from_string(const char *s
);
144 const char* job_mode_to_string(JobMode t
);
145 JobMode
job_mode_from_string(const char *s
);
147 char *job_dbus_path(Job
*j
);