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60918275 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
3 | #ifndef foojobhfoo | |
4 | #define foojobhfoo | |
5 | ||
a7334b09 LP |
6 | /*** |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
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. | |
15 | ||
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. | |
20 | ||
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/>. | |
23 | ***/ | |
24 | ||
60918275 LP |
25 | #include <stdbool.h> |
26 | #include <inttypes.h> | |
27 | ||
28 | typedef struct Job Job; | |
e5b5ae50 | 29 | typedef struct JobDependency JobDependency; |
60918275 | 30 | typedef enum JobType JobType; |
e5b5ae50 | 31 | typedef enum JobState JobState; |
5cb5a6ff | 32 | typedef enum JobMode JobMode; |
60918275 LP |
33 | |
34 | #include "manager.h" | |
87f0e418 | 35 | #include "unit.h" |
60918275 LP |
36 | #include "hashmap.h" |
37 | #include "list.h" | |
38 | ||
39 | enum JobType { | |
87f0e418 | 40 | JOB_START, /* if a unit does not support being started, we'll just wait until it becomes active */ |
5cb5a6ff LP |
41 | JOB_VERIFY_ACTIVE, |
42 | ||
60918275 | 43 | JOB_STOP, |
5cb5a6ff LP |
44 | |
45 | JOB_RELOAD, /* if running reload */ | |
46 | JOB_RELOAD_OR_START, /* if running reload, if not running start */ | |
47 | ||
48 | /* Note that restarts are first treated like JOB_STOP, but | |
49 | * then instead of finishing are patched to become | |
50 | * JOB_START. */ | |
51 | JOB_RESTART, /* if running stop, then start unconditionally */ | |
52 | JOB_TRY_RESTART, /* if running stop and then start */ | |
53 | ||
e5b5ae50 LP |
54 | _JOB_TYPE_MAX, |
55 | _JOB_TYPE_INVALID = -1 | |
60918275 LP |
56 | }; |
57 | ||
e5b5ae50 | 58 | enum JobState { |
60918275 LP |
59 | JOB_WAITING, |
60 | JOB_RUNNING, | |
94f04347 LP |
61 | _JOB_STATE_MAX, |
62 | _JOB_STATE_INVALID = -1 | |
e5b5ae50 | 63 | }; |
60918275 LP |
64 | |
65 | enum JobMode { | |
66 | JOB_FAIL, | |
67 | JOB_REPLACE, | |
b548631a LP |
68 | _JOB_MODE_MAX, |
69 | _JOB_MODE_INVALID = -1 | |
60918275 LP |
70 | }; |
71 | ||
e5b5ae50 LP |
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. */ | |
75 | Job *subject; | |
76 | Job *object; | |
77 | ||
78 | bool matters; | |
79 | ||
034c6ed7 LP |
80 | LIST_FIELDS(JobDependency, subject); |
81 | LIST_FIELDS(JobDependency, object); | |
e5b5ae50 LP |
82 | }; |
83 | ||
60918275 LP |
84 | struct Job { |
85 | Manager *manager; | |
86 | uint32_t id; | |
87 | ||
87f0e418 | 88 | Unit *unit; |
e5b5ae50 | 89 | |
60918275 LP |
90 | JobType type; |
91 | JobState state; | |
60918275 | 92 | |
ac1135be | 93 | bool installed:1; |
034c6ed7 | 94 | bool in_run_queue:1; |
e5b5ae50 | 95 | bool matters_to_anchor:1; |
9e2f7c11 | 96 | bool override:1; |
c1e1601e LP |
97 | bool in_dbus_queue:1; |
98 | bool sent_dbus_new_signal:1; | |
e5b5ae50 | 99 | |
034c6ed7 LP |
100 | LIST_FIELDS(Job, transaction); |
101 | LIST_FIELDS(Job, run_queue); | |
c1e1601e | 102 | LIST_FIELDS(Job, dbus_queue); |
e5b5ae50 | 103 | |
44d8db9e LP |
104 | LIST_HEAD(JobDependency, subject_list); |
105 | LIST_HEAD(JobDependency, object_list); | |
e5b5ae50 | 106 | |
5cb5a6ff | 107 | /* Used for graph algs as a "I have been here" marker */ |
e5b5ae50 LP |
108 | Job* marker; |
109 | unsigned generation; | |
034c6ed7 | 110 | |
60918275 LP |
111 | }; |
112 | ||
87f0e418 | 113 | Job* job_new(Manager *m, JobType type, Unit *unit); |
60918275 | 114 | void job_free(Job *job); |
ceed3570 | 115 | void job_dump(Job *j, FILE*f, const char *prefix); |
60918275 | 116 | |
e5b5ae50 LP |
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); | |
120 | ||
121 | bool job_is_anchor(Job *j); | |
122 | ||
123 | int job_merge(Job *j, Job *other); | |
124 | ||
1ffba6fe | 125 | int job_type_merge(JobType *a, JobType b); |
5cb5a6ff | 126 | bool job_type_is_mergeable(JobType a, JobType b); |
1ffba6fe | 127 | bool job_type_is_superset(JobType a, JobType b); |
e094e853 | 128 | bool job_type_is_conflicting(JobType a, JobType b); |
593fbdd2 | 129 | bool job_type_is_redundant(JobType a, UnitActiveState b); |
5cb5a6ff | 130 | |
47be870b LP |
131 | bool job_is_runnable(Job *j); |
132 | ||
c1e1601e LP |
133 | void job_add_to_run_queue(Job *j); |
134 | void job_add_to_dbus_queue(Job *j); | |
135 | ||
5cb5a6ff LP |
136 | int job_run_and_invalidate(Job *j); |
137 | int job_finish_and_invalidate(Job *j, bool success); | |
1ffba6fe | 138 | |
94f04347 LP |
139 | const char* job_type_to_string(JobType t); |
140 | JobType job_type_from_string(const char *s); | |
141 | ||
142 | const char* job_state_to_string(JobState t); | |
143 | JobState job_state_from_string(const char *s); | |
144 | ||
b548631a LP |
145 | const char* job_mode_to_string(JobMode t); |
146 | JobMode job_mode_from_string(const char *s); | |
147 | ||
ea430986 LP |
148 | char *job_dbus_path(Job *j); |
149 | ||
60918275 | 150 | #endif |