1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*-*- Mode: C; c-basic-offset: 8 -*-*/
#ifndef foojobhfoo
#define foojobhfoo
/***
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 <stdbool.h>
#include <inttypes.h>
typedef struct Job Job;
typedef struct JobDependency JobDependency;
typedef enum JobType JobType;
typedef enum JobState JobState;
typedef enum JobMode JobMode;
#include "manager.h"
#include "unit.h"
#include "hashmap.h"
#include "list.h"
enum JobType {
JOB_START, /* if a unit does not support being started, we'll just wait until it becomes active */
JOB_VERIFY_ACTIVE,
JOB_STOP,
JOB_RELOAD, /* if running reload */
JOB_RELOAD_OR_START, /* if running reload, if not running start */
/* Note that restarts are first treated like JOB_STOP, but
* then instead of finishing are patched to become
* JOB_START. */
JOB_RESTART, /* if running stop, then start unconditionally */
JOB_TRY_RESTART, /* if running stop and then start */
_JOB_TYPE_MAX,
_JOB_TYPE_INVALID = -1
};
enum JobState {
JOB_WAITING,
JOB_RUNNING,
_JOB_STATE_MAX,
_JOB_STATE_INVALID = -1
};
enum JobMode {
JOB_FAIL,
JOB_REPLACE,
_JOB_MODE_MAX,
_JOB_MODE_INVALID = -1
};
struct JobDependency {
/* Encodes that the 'subject' job needs the 'object' job in
* some way. This structure is used only while building a transaction. */
Job *subject;
Job *object;
bool matters;
LIST_FIELDS(JobDependency, subject);
LIST_FIELDS(JobDependency, object);
};
struct Job {
Manager *manager;
uint32_t id;
Unit *unit;
JobType type;
JobState state;
bool installed:1;
bool in_run_queue:1;
bool matters_to_anchor:1;
bool forced:1;
LIST_FIELDS(Job, transaction);
LIST_FIELDS(Job, run_queue);
LIST_HEAD(JobDependency, subject_list);
LIST_HEAD(JobDependency, object_list);
/* Used for graph algs as a "I have been here" marker */
Job* marker;
unsigned generation;
};
Job* job_new(Manager *m, JobType type, Unit *unit);
void job_free(Job *job);
void job_dump(Job *j, FILE*f, const char *prefix);
JobDependency* job_dependency_new(Job *subject, Job *object, bool matters);
void job_dependency_free(JobDependency *l);
void job_dependency_delete(Job *subject, Job *object, bool *matters);
bool job_is_anchor(Job *j);
int job_merge(Job *j, Job *other);
int job_type_merge(JobType *a, JobType b);
bool job_type_is_mergeable(JobType a, JobType b);
bool job_type_is_superset(JobType a, JobType b);
bool job_type_is_conflicting(JobType a, JobType b);
bool job_is_runnable(Job *j);
void job_schedule_run(Job *j);
int job_run_and_invalidate(Job *j);
int job_finish_and_invalidate(Job *j, bool success);
const char* job_type_to_string(JobType t);
JobType job_type_from_string(const char *s);
const char* job_state_to_string(JobState t);
JobState job_state_from_string(const char *s);
const char* job_mode_to_string(JobMode t);
JobMode job_mode_from_string(const char *s);
char *job_dbus_path(Job *j);
#endif
|
