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
|
/*-*- Mode: C; c-basic-offset: 8 -*-*/
#ifndef fooservicehfoo
#define fooservicehfoo
typedef struct Service Service;
#include "unit.h"
#include "ratelimit.h"
typedef enum ServiceState {
SERVICE_DEAD,
SERVICE_START_PRE,
SERVICE_START,
SERVICE_START_POST,
SERVICE_RUNNING,
SERVICE_RELOAD,
SERVICE_STOP, /* No STOP_PRE state, instead just register multiple STOP executables */
SERVICE_STOP_SIGTERM,
SERVICE_STOP_SIGKILL,
SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, /* In case the STOP_POST executable hangs, we shoot that down, too */
SERVICE_FINAL_SIGKILL,
SERVICE_MAINTAINANCE,
SERVICE_AUTO_RESTART,
_SERVICE_STATE_MAX,
_SERVICE_STATE_INVALID = -1
} ServiceState;
typedef enum ServiceRestart {
SERVICE_ONCE,
SERVICE_RESTART_ON_SUCCESS,
SERVICE_RESTART_ALWAYS,
_SERVICE_RESTART_MAX,
_SERVICE_RESTART_INVALID = -1
} ServiceRestart;
typedef enum ServiceType {
SERVICE_FORKING, /* forks by itself (i.e. traditional daemons) */
SERVICE_SIMPLE, /* we fork and go on right-away (i.e. modern socket activated daemons)*/
SERVICE_FINISH, /* we fork and wait until the program finishes (i.e. programs like fsck which run and need to finish before we continue) */
_SERVICE_TYPE_MAX,
_SERVICE_TYPE_INVALID = -1
} ServiceType;
typedef enum ServiceExecCommand {
SERVICE_EXEC_START_PRE,
SERVICE_EXEC_START,
SERVICE_EXEC_START_POST,
SERVICE_EXEC_RELOAD,
SERVICE_EXEC_STOP,
SERVICE_EXEC_STOP_POST,
_SERVICE_EXEC_MAX,
_SERVICE_EXEC_INVALID = -1
} ServiceExecCommand;
struct Service {
Meta meta;
ServiceType type;
ServiceRestart restart;
/* If set we'll read the main daemon PID from this file */
char *pid_file;
usec_t restart_usec;
usec_t timeout_usec;
ExecCommand* exec_command[_SERVICE_EXEC_MAX];
ExecContext exec_context;
ServiceState state;
ExecStatus main_exec_status;
ExecCommand *control_command;
pid_t main_pid, control_pid;
bool main_pid_known:1;
bool failure:1; /* if we shut down, remember why */
Watch timer_watch;
RateLimit ratelimit;
};
const UnitVTable service_vtable;
const char* service_state_to_string(ServiceState i);
ServiceState service_state_from_string(const char *s);
const char* service_restart_to_string(ServiceRestart i);
ServiceRestart service_restart_from_string(const char *s);
const char* service_type_to_string(ServiceType i);
ServiceType service_type_from_string(const char *s);
const char* service_exec_command_to_string(ServiceExecCommand i);
ServiceExecCommand service_exec_command_from_string(const char *s);
#endif
|
