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60918275 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
3 | #ifndef foonamehfoo | |
4 | #define foonamehfoo | |
5 | ||
6 | #include <stdbool.h> | |
7 | #include <stdlib.h> | |
8 | ||
9 | typedef union Name Name; | |
10 | typedef struct Meta Meta; | |
11 | typedef struct Service Service; | |
12 | typedef struct Timer Timer; | |
13 | typedef struct Socket Socket; | |
14 | typedef struct Milestone Milestone; | |
15 | typedef struct Device Device; | |
16 | typedef struct Mount Mount; | |
17 | typedef struct Automount Automount; | |
18 | typedef struct Snapshot Snapshot; | |
19 | ||
20 | #include "job.h" | |
21 | #include "manager.h" | |
22 | #include "set.h" | |
23 | #include "util.h" | |
24 | #include "list.h" | |
25 | ||
26 | typedef enum NameType { | |
27 | NAME_SERVICE = 0, | |
28 | NAME_TIMER, | |
29 | NAME_SOCKET, | |
30 | NAME_MILESTONE, | |
31 | NAME_DEVICE, | |
32 | NAME_MOUNT, | |
33 | NAME_AUTOMOUNT, | |
34 | NAME_SNAPSHOT, | |
35 | _NAME_TYPE_MAX, | |
36 | _NAME_TYPE_INVALID = -1, | |
37 | } NameType; | |
38 | ||
39 | typedef enum NameState { | |
40 | NAME_STUB, | |
41 | NAME_LOADED, | |
42 | NAME_FAILED | |
43 | } NameState; | |
44 | ||
45 | struct Meta { | |
46 | Manager *manager; | |
47 | NameType type; | |
48 | NameState state; | |
49 | ||
50 | char **names; | |
51 | ||
52 | /* Positive dependencies */ | |
53 | Set *requires, *soft_requires, *wants, *requisite, *soft_requisite; | |
54 | Set *required_by; /* inverse of 'requires', 'soft_requires', 'requisite' and 'soft_requisite' is 'required_by' */ | |
55 | ||
56 | /* Negative dependencies */ | |
57 | Set *conflicts; /* inverse of 'conflicts' is 'conflicts' */ | |
58 | ||
59 | /* Order */ | |
60 | Set *before, *after; /* inverse of before is after and vice versa */ | |
61 | ||
62 | /* Information */ | |
63 | char *description; | |
64 | ||
65 | /* If there is something to do with this name, then this is | |
66 | * the job for it */ | |
67 | Job *job; | |
68 | ||
69 | bool linked:1; | |
70 | ||
71 | /* Load queue */ | |
72 | LIST_FIELDS(Meta); | |
73 | }; | |
74 | ||
75 | typedef enum ServiceState { | |
76 | SERVICE_DEAD, | |
77 | SERVICE_BEFORE, | |
78 | SERVICE_START_PRE, | |
79 | SERVICE_START, | |
80 | SERVICE_START_POST, | |
81 | SERVICE_RUNNING, | |
82 | SERVICE_RELOAD_PRE, | |
83 | SERVICE_RELOAD, | |
84 | SERVICE_RELOAD_POST, | |
85 | SERVICE_STOP_PRE, | |
86 | SERVICE_STOP, | |
87 | SERVICE_SIGTERM, | |
88 | SERVICE_SIGKILL, | |
89 | SERVICE_STOP_POST, | |
90 | SERVICE_HOLDOFF, | |
91 | SERVICE_MAINTAINANCE | |
92 | } ServiceState; | |
93 | ||
94 | typedef enum ServiceMode { | |
95 | SERVICE_ONCE, | |
96 | SERVICE_RESTART | |
97 | } ServiceMode; | |
98 | ||
99 | struct Service { | |
100 | Meta meta; | |
101 | ||
102 | ServiceState state; | |
103 | ServiceMode mode; | |
104 | }; | |
105 | ||
106 | typedef enum TimerState { | |
107 | TIMER_DEAD, | |
108 | TIMER_BEFORE, | |
109 | TIMER_START_PRE, | |
110 | TIMER_START, | |
111 | TIMER_START_POST, | |
112 | TIMER_WAITING, | |
113 | TIMER_RUNNING, | |
114 | TIMER_STOP_PRE, | |
115 | TIMER_STOP, | |
116 | TIMER_STOP_POST, | |
117 | TIMER_MAINTAINANCE | |
118 | } TimerState; | |
119 | ||
120 | struct Timer { | |
121 | Meta meta; | |
122 | ||
123 | TimerState state; | |
124 | Service *subject; | |
125 | ||
126 | clockid_t clock_id; | |
127 | usec_t next_elapse; | |
128 | }; | |
129 | ||
130 | typedef enum SocketState { | |
131 | SOCKET_DEAD, | |
132 | SOCKET_BEFORE, | |
133 | SOCKET_START_PRE, | |
134 | SOCKET_START, | |
135 | SOCKET_START_POST, | |
136 | SOCKET_LISTENING, | |
137 | SOCKET_RUNNING, | |
138 | SOCKET_STOP_PRE, | |
139 | SOCKET_STOP, | |
140 | SOCKET_STOP_POST, | |
141 | SOCKET_MAINTAINANCE | |
142 | } SocketState; | |
143 | ||
144 | struct Socket { | |
145 | Meta meta; | |
146 | ||
147 | SocketState state; | |
148 | int *fds; | |
149 | unsigned n_fds; | |
150 | ||
151 | Service *subject; | |
152 | }; | |
153 | ||
154 | typedef enum MilestoneState { | |
155 | MILESTONE_DEAD, | |
156 | MILESTONE_BEFORE, | |
157 | MILESTONE_ACTIVE | |
158 | } MilestoneState; | |
159 | ||
160 | struct Milestone { | |
161 | Meta meta; | |
162 | ||
163 | MilestoneState state; | |
164 | }; | |
165 | ||
166 | typedef enum DeviceState { | |
167 | DEVICE_DEAD, | |
168 | DEVICE_BEFORE, | |
169 | DEVICE_AVAILABLE | |
170 | } DeviceState; | |
171 | ||
172 | struct Device { | |
173 | Meta meta; | |
174 | ||
175 | DeviceState state; | |
176 | char *sysfs; | |
177 | }; | |
178 | ||
179 | typedef enum MountState { | |
180 | MOUNT_DEAD, | |
181 | MOUNT_BEFORE, | |
182 | MOUNT_MOUNTED | |
183 | } MountState; | |
184 | ||
185 | struct Mount { | |
186 | Meta meta; | |
187 | ||
188 | MountState state; | |
189 | char *path; | |
190 | }; | |
191 | ||
192 | typedef enum AutomountState { | |
193 | AUTOMOUNT_DEAD, | |
194 | AUTOMOUNT_BEFORE, | |
195 | AUTOMOUNT_START_PRE, | |
196 | AUTOMOUNT_START, | |
197 | AUTOMOUNT_START_POST, | |
198 | AUTOMOUNT_WAITING, | |
199 | AUTOMOUNT_RUNNING, | |
200 | AUTOMOUNT_STOP_PRE, | |
201 | AUTOMOUNT_STOP, | |
202 | AUTOMOUNT_STOP_POST, | |
203 | AUTOMOUNT_MAINTAINANCE | |
204 | } AutomountState; | |
205 | ||
206 | struct Automount { | |
207 | Meta meta; | |
208 | ||
209 | AutomountState state; | |
210 | char *path; | |
211 | Mount *subject; | |
212 | }; | |
213 | ||
214 | typedef enum SnapshotState { | |
215 | SNAPSHOT_DEAD, | |
216 | SNAPSHOT_BEFORE, | |
217 | SNAPSHOT_ACTIVE | |
218 | } SnapshotState; | |
219 | ||
220 | struct Snapshot { | |
221 | Meta meta; | |
222 | ||
223 | SnapshotState state; | |
224 | bool cleanup:1; | |
225 | }; | |
226 | ||
227 | union Name { | |
228 | Meta meta; | |
229 | Service service; | |
230 | Timer timer; | |
231 | Socket socket; | |
232 | Milestone milestone; | |
233 | Device device; | |
234 | Mount mount; | |
235 | Automount automount; | |
236 | Snapshot snapshot; | |
237 | }; | |
238 | ||
239 | /* For casting a name into the various name types */ | |
240 | ||
241 | #define DEFINE_CAST(UPPERCASE, MixedCase, lowercase) \ | |
242 | static inline MixedCase* UPPERCASE(Name *name) { \ | |
243 | if (name->meta.type != NAME_##UPPERCASE) \ | |
244 | return NULL; \ | |
245 | \ | |
246 | return &name->lowercase; \ | |
247 | } | |
248 | ||
249 | DEFINE_CAST(SERVICE, Service, service); | |
250 | DEFINE_CAST(TIMER, Timer, timer); | |
251 | DEFINE_CAST(SOCKET, Socket, socket); | |
252 | DEFINE_CAST(MILESTONE, Milestone, milestone); | |
253 | DEFINE_CAST(DEVICE, Device, device); | |
254 | DEFINE_CAST(MOUNT, Mount, mount); | |
255 | DEFINE_CAST(AUTOMOUNT, Automount, automount); | |
256 | DEFINE_CAST(SNAPSHOT, Snapshot, snapshot); | |
257 | ||
258 | /* For casting the various name types into a name */ | |
259 | #define NAME(o) ((Name*) (o)) | |
260 | ||
261 | bool name_is_ready(Name *name); | |
262 | NameType name_type_from_string(const char *n); | |
263 | ||
264 | Name *name_new(Manager *m); | |
265 | void name_free(Name *name); | |
266 | int name_link(Name *name); | |
267 | ||
268 | int name_augment(Name *n); | |
269 | ||
270 | #endif |