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
|
/*-*- Mode: C; c-basic-offset: 8 -*-*/
#ifndef foomanagerhfoo
#define foomanagerhfoo
#include <stdbool.h>
#include <inttypes.h>
#include <stdio.h>
#include <dbus/dbus.h>
typedef struct Manager Manager;
typedef enum WatchType WatchType;
typedef struct Watch Watch;
enum WatchType {
WATCH_INVALID,
WATCH_SIGNAL,
WATCH_FD,
WATCH_TIMER,
WATCH_MOUNT,
WATCH_UDEV,
WATCH_DBUS_WATCH,
WATCH_DBUS_TIMEOUT
};
struct Watch {
int fd;
WatchType type;
bool fd_is_dupped;
union {
union Unit *unit;
DBusWatch *bus_watch;
DBusTimeout *bus_timeout;
} data;
};
#include "unit.h"
#include "job.h"
#include "hashmap.h"
#include "list.h"
#include "set.h"
#include "dbus.h"
#define SPECIAL_DEFAULT_TARGET "default.target"
#define SPECIAL_SYSLOG_SERVICE "syslog.service"
#define SPECIAL_DBUS_SERVICE "messagebus.service"
#define SPECIAL_LOGGER_SOCKET "systemd-logger.socket"
#define SPECIAL_KBREQUEST_TARGET "kbrequest.target"
#define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target"
struct Manager {
uint32_t current_job_id;
/* Note that the set of units we know of is allowed to be
* incosistent. However the subset of it that is loaded may
* not, and the list of jobs may neither. */
/* Active jobs and units */
Hashmap *units; /* name string => Unit object n:1 */
Hashmap *jobs; /* job id => Job object 1:1 */
/* To make it easy to iterate through the units of a specific
* type we maintain a per type linked list */
LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]);
/* Units that need to be loaded */
LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */
/* Jobs that need to be run */
LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */
/* Jobs to be added */
Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */
JobDependency *transaction_anchor;
bool dispatching_load_queue:1;
bool dispatching_run_queue:1;
bool is_init:1;
bool request_bus_dispatch:1;
Hashmap *watch_pids; /* pid => Unit object n:1 */
int epoll_fd;
Watch signal_watch;
/* Data specific to the device subsystem */
struct udev* udev;
struct udev_monitor* udev_monitor;
Watch udev_watch;
/* Data specific to the mount subsystem */
FILE *proc_self_mountinfo;
Watch mount_watch;
/* Data specific to the D-Bus subsystem */
DBusConnection *bus;
};
Manager* manager_new(void);
void manager_free(Manager *m);
int manager_coldplug(Manager *m);
Job *manager_get_job(Manager *m, uint32_t id);
Unit *manager_get_unit(Manager *m, const char *name);
int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u);
int manager_load_unit(Manager *m, const char *path_or_name, Unit **_ret);
int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret);
void manager_dump_units(Manager *s, FILE *f, const char *prefix);
void manager_dump_jobs(Manager *s, FILE *f, const char *prefix);
void manager_transaction_unlink_job(Manager *m, Job *j);
void manager_clear_jobs(Manager *m);
void manager_dispatch_load_queue(Manager *m);
void manager_dispatch_run_queue(Manager *m);
int manager_loop(Manager *m);
#endif
|
