1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | # if HAVE_CLOCK_SYSCALL |
|
|
49 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
50 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
51 | # ifndef EV_USE_REALTIME |
|
|
52 | # define EV_USE_REALTIME 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_MONOTONIC |
|
|
55 | # define EV_USE_MONOTONIC 1 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
59 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
60 | # endif |
|
|
61 | |
52 | # if HAVE_CLOCK_GETTIME |
62 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
63 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
64 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
65 | # endif |
56 | # ifndef EV_USE_REALTIME |
66 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
67 | # define EV_USE_REALTIME 0 |
58 | # endif |
68 | # endif |
59 | # else |
69 | # else |
60 | # ifndef EV_USE_MONOTONIC |
70 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
71 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
72 | # endif |
63 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
65 | # endif |
75 | # endif |
66 | # endif |
76 | # endif |
67 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
71 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
|
|
86 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
74 | # endif |
94 | # endif |
75 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
99 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
103 | # endif |
91 | |
104 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
95 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
98 | # endif |
112 | # endif |
99 | |
113 | |
|
|
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
106 | # endif |
121 | # endif |
107 | |
122 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
111 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
126 | # endif |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
114 | # endif |
130 | # endif |
115 | |
131 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
135 | # endif |
|
|
136 | # else |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
122 | # endif |
139 | # endif |
123 | |
140 | |
|
|
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
142 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
130 | # endif |
148 | # endif |
131 | |
149 | |
|
|
150 | # if HAVE_EVENTFD |
|
|
151 | # ifndef EV_USE_EVENTFD |
|
|
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
|
|
157 | # endif |
|
|
158 | |
132 | #endif |
159 | #endif |
133 | |
160 | |
134 | #include <math.h> |
161 | #include <math.h> |
135 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
136 | #include <fcntl.h> |
164 | #include <fcntl.h> |
137 | #include <stddef.h> |
165 | #include <stddef.h> |
138 | |
166 | |
139 | #include <stdio.h> |
167 | #include <stdio.h> |
140 | |
168 | |
141 | #include <assert.h> |
169 | #include <assert.h> |
142 | #include <errno.h> |
170 | #include <errno.h> |
143 | #include <sys/types.h> |
171 | #include <sys/types.h> |
144 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
145 | |
174 | |
146 | #include <signal.h> |
175 | #include <signal.h> |
147 | |
176 | |
148 | #ifdef EV_H |
177 | #ifdef EV_H |
149 | # include EV_H |
178 | # include EV_H |
150 | #else |
179 | #else |
151 | # include "ev.h" |
180 | # include "ev.h" |
152 | #endif |
181 | #endif |
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|
182 | |
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|
183 | EV_CPP(extern "C" {) |
153 | |
184 | |
154 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
186 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
157 | # include <unistd.h> |
188 | # include <unistd.h> |
158 | #else |
189 | #else |
|
|
190 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
192 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
164 | #endif |
197 | #endif |
|
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198 | |
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|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
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|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
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203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
165 | |
206 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
208 | |
|
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209 | /* try to deduce the maximum number of signals on this platform */ |
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|
210 | #if defined (EV_NSIG) |
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|
211 | /* use what's provided */ |
|
|
212 | #elif defined (NSIG) |
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213 | # define EV_NSIG (NSIG) |
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214 | #elif defined(_NSIG) |
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215 | # define EV_NSIG (_NSIG) |
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216 | #elif defined (SIGMAX) |
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217 | # define EV_NSIG (SIGMAX+1) |
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218 | #elif defined (SIG_MAX) |
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219 | # define EV_NSIG (SIG_MAX+1) |
|
|
220 | #elif defined (_SIG_MAX) |
|
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221 | # define EV_NSIG (_SIG_MAX+1) |
|
|
222 | #elif defined (MAXSIG) |
|
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223 | # define EV_NSIG (MAXSIG+1) |
|
|
224 | #elif defined (MAX_SIG) |
|
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225 | # define EV_NSIG (MAX_SIG+1) |
|
|
226 | #elif defined (SIGARRAYSIZE) |
|
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
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228 | #elif defined (_sys_nsig) |
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229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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230 | #else |
|
|
231 | # error "unable to find value for NSIG, please report" |
|
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232 | /* to make it compile regardless, just remove the above line, */ |
|
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233 | /* but consider reporting it, too! :) */ |
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234 | # define EV_NSIG 65 |
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|
235 | #endif |
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236 | |
|
|
237 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
238 | # if __linux && __GLIBC__ >= 2 |
|
|
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
240 | # else |
|
|
241 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
242 | # endif |
|
|
243 | #endif |
|
|
244 | |
168 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
|
|
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
248 | # else |
169 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
|
|
250 | # endif |
170 | #endif |
251 | #endif |
171 | |
252 | |
172 | #ifndef EV_USE_REALTIME |
253 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
255 | #endif |
175 | |
256 | |
176 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
|
|
258 | # if _POSIX_C_SOURCE >= 199309L |
|
|
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
260 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
|
|
262 | # endif |
178 | #endif |
263 | #endif |
179 | |
264 | |
180 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
267 | #endif |
183 | |
268 | |
184 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
187 | # else |
272 | # else |
188 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
274 | # endif |
190 | #endif |
275 | #endif |
191 | |
276 | |
192 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
280 | # else |
196 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
197 | # endif |
282 | # endif |
198 | #endif |
283 | #endif |
199 | |
284 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
206 | #endif |
291 | #endif |
207 | |
292 | |
208 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
296 | # else |
212 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
213 | # endif |
298 | # endif |
214 | #endif |
299 | #endif |
215 | |
300 | |
216 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
303 | #endif |
223 | |
304 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
307 | #endif |
231 | |
308 | |
232 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
312 | # else |
236 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
237 | # endif |
314 | # endif |
238 | #endif |
315 | #endif |
239 | |
316 | |
|
|
317 | #ifndef EV_USE_SIGNALFD |
|
|
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
320 | # else |
|
|
321 | # define EV_USE_SIGNALFD 0 |
|
|
322 | # endif |
|
|
323 | #endif |
|
|
324 | |
|
|
325 | #if 0 /* debugging */ |
|
|
326 | # define EV_VERIFY 3 |
|
|
327 | # define EV_USE_4HEAP 1 |
|
|
328 | # define EV_HEAP_CACHE_AT 1 |
|
|
329 | #endif |
|
|
330 | |
|
|
331 | #ifndef EV_VERIFY |
|
|
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
333 | #endif |
|
|
334 | |
240 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
241 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
242 | #endif |
337 | #endif |
243 | |
338 | |
244 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
341 | #endif |
|
|
342 | |
|
|
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
344 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
345 | #if EV_USE_CLOCK_SYSCALL |
|
|
346 | # include <syscall.h> |
|
|
347 | # ifdef SYS_clock_gettime |
|
|
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
349 | # undef EV_USE_MONOTONIC |
|
|
350 | # define EV_USE_MONOTONIC 1 |
|
|
351 | # else |
|
|
352 | # undef EV_USE_CLOCK_SYSCALL |
|
|
353 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
354 | # endif |
246 | #endif |
355 | #endif |
247 | |
356 | |
248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
249 | |
364 | |
250 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
251 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
252 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
253 | #endif |
368 | #endif |
… | |
… | |
267 | # include <sys/select.h> |
382 | # include <sys/select.h> |
268 | # endif |
383 | # endif |
269 | #endif |
384 | #endif |
270 | |
385 | |
271 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
|
|
387 | # include <sys/statfs.h> |
272 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
|
|
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
390 | # ifndef IN_DONT_FOLLOW |
|
|
391 | # undef EV_USE_INOTIFY |
|
|
392 | # define EV_USE_INOTIFY 0 |
|
|
393 | # endif |
273 | #endif |
394 | #endif |
274 | |
395 | |
275 | #if EV_SELECT_IS_WINSOCKET |
396 | #if EV_SELECT_IS_WINSOCKET |
276 | # include <winsock.h> |
397 | # include <winsock.h> |
277 | #endif |
398 | #endif |
278 | |
399 | |
279 | #if EV_USE_EVENTFD |
400 | #if EV_USE_EVENTFD |
280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
281 | # include <stdint.h> |
402 | # include <stdint.h> |
282 | # ifdef __cplusplus |
403 | # ifndef EFD_NONBLOCK |
283 | extern "C" { |
404 | # define EFD_NONBLOCK O_NONBLOCK |
284 | # endif |
405 | # endif |
285 | int eventfd (unsigned int initval, int flags); |
406 | # ifndef EFD_CLOEXEC |
286 | # ifdef __cplusplus |
407 | # ifdef O_CLOEXEC |
287 | } |
408 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
409 | # else |
|
|
410 | # define EFD_CLOEXEC 02000000 |
|
|
411 | # endif |
288 | # endif |
412 | # endif |
|
|
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
418 | # include <stdint.h> |
|
|
419 | # ifndef SFD_NONBLOCK |
|
|
420 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
421 | # endif |
|
|
422 | # ifndef SFD_CLOEXEC |
|
|
423 | # ifdef O_CLOEXEC |
|
|
424 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define SFD_CLOEXEC 02000000 |
|
|
427 | # endif |
|
|
428 | # endif |
|
|
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
289 | #endif |
436 | #endif |
290 | |
437 | |
291 | /**/ |
438 | /**/ |
292 | |
439 | |
293 | /* undefined or zero: no verification done or available */ |
|
|
294 | /* 1 or higher: ev_loop_verify function available */ |
|
|
295 | /* 2 or higher: ev_loop_verify is called frequently */ |
|
|
296 | #define EV_VERIFY 1 |
|
|
297 | |
|
|
298 | #if EV_VERIFY > 1 |
440 | #if EV_VERIFY >= 3 |
299 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
300 | #else |
442 | #else |
301 | # define EV_FREQUENT_CHECK do { } while (0) |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
302 | #endif |
444 | #endif |
303 | |
445 | |
304 | /* |
446 | /* |
… | |
… | |
311 | */ |
453 | */ |
312 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
313 | |
455 | |
314 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
315 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
316 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
317 | |
461 | |
318 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
319 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
320 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
321 | #else |
465 | #else |
… | |
… | |
328 | |
472 | |
329 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
330 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
331 | #define inline_size static inline |
475 | #define inline_size static inline |
332 | |
476 | |
333 | #if EV_MINIMAL |
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
334 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
|
|
481 | #endif |
|
|
482 | |
|
|
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
484 | |
|
|
485 | #if EV_MINPRI == EV_MAXPRI |
|
|
486 | # define ABSPRI(w) (((W)w), 0) |
335 | #else |
487 | #else |
336 | # define inline_speed static inline |
|
|
337 | #endif |
|
|
338 | |
|
|
339 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
340 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
488 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
489 | #endif |
341 | |
490 | |
342 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
491 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
343 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
492 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
344 | |
493 | |
345 | typedef ev_watcher *W; |
494 | typedef ev_watcher *W; |
… | |
… | |
347 | typedef ev_watcher_time *WT; |
496 | typedef ev_watcher_time *WT; |
348 | |
497 | |
349 | #define ev_active(w) ((W)(w))->active |
498 | #define ev_active(w) ((W)(w))->active |
350 | #define ev_at(w) ((WT)(w))->at |
499 | #define ev_at(w) ((WT)(w))->at |
351 | |
500 | |
|
|
501 | #if EV_USE_REALTIME |
|
|
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
503 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
505 | #endif |
|
|
506 | |
352 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
353 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
354 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
355 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
509 | #endif |
|
|
510 | |
|
|
511 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
512 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
513 | #endif |
|
|
514 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
515 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
516 | #endif |
|
|
517 | #ifndef EV_WIN32_CLOSE_FD |
|
|
518 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
356 | #endif |
519 | #endif |
357 | |
520 | |
358 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
359 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
360 | #endif |
523 | #endif |
361 | |
524 | |
362 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
363 | |
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
|
|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | struct utsname buf; |
|
|
536 | unsigned int v; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
|
|
554 | break; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
|
|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
|
|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | #if EV_AVOID_STDIO |
|
|
570 | static void noinline |
|
|
571 | ev_printerr (const char *msg) |
|
|
572 | { |
|
|
573 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
574 | } |
|
|
575 | #endif |
|
|
576 | |
364 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
365 | |
578 | |
366 | void |
579 | void |
367 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
368 | { |
581 | { |
369 | syserr_cb = cb; |
582 | syserr_cb = cb; |
370 | } |
583 | } |
371 | |
584 | |
372 | static void noinline |
585 | static void noinline |
373 | syserr (const char *msg) |
586 | ev_syserr (const char *msg) |
374 | { |
587 | { |
375 | if (!msg) |
588 | if (!msg) |
376 | msg = "(libev) system error"; |
589 | msg = "(libev) system error"; |
377 | |
590 | |
378 | if (syserr_cb) |
591 | if (syserr_cb) |
379 | syserr_cb (msg); |
592 | syserr_cb (msg); |
380 | else |
593 | else |
381 | { |
594 | { |
|
|
595 | #if EV_AVOID_STDIO |
|
|
596 | const char *err = strerror (errno); |
|
|
597 | |
|
|
598 | ev_printerr (msg); |
|
|
599 | ev_printerr (": "); |
|
|
600 | ev_printerr (err); |
|
|
601 | ev_printerr ("\n"); |
|
|
602 | #else |
382 | perror (msg); |
603 | perror (msg); |
|
|
604 | #endif |
383 | abort (); |
605 | abort (); |
384 | } |
606 | } |
385 | } |
607 | } |
386 | |
608 | |
387 | static void * |
609 | static void * |
388 | ev_realloc_emul (void *ptr, long size) |
610 | ev_realloc_emul (void *ptr, long size) |
389 | { |
611 | { |
|
|
612 | #if __GLIBC__ |
|
|
613 | return realloc (ptr, size); |
|
|
614 | #else |
390 | /* some systems, notably openbsd and darwin, fail to properly |
615 | /* some systems, notably openbsd and darwin, fail to properly |
391 | * implement realloc (x, 0) (as required by both ansi c-98 and |
616 | * implement realloc (x, 0) (as required by both ansi c-89 and |
392 | * the single unix specification, so work around them here. |
617 | * the single unix specification, so work around them here. |
393 | */ |
618 | */ |
394 | |
619 | |
395 | if (size) |
620 | if (size) |
396 | return realloc (ptr, size); |
621 | return realloc (ptr, size); |
397 | |
622 | |
398 | free (ptr); |
623 | free (ptr); |
399 | return 0; |
624 | return 0; |
|
|
625 | #endif |
400 | } |
626 | } |
401 | |
627 | |
402 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
403 | |
629 | |
404 | void |
630 | void |
… | |
… | |
412 | { |
638 | { |
413 | ptr = alloc (ptr, size); |
639 | ptr = alloc (ptr, size); |
414 | |
640 | |
415 | if (!ptr && size) |
641 | if (!ptr && size) |
416 | { |
642 | { |
|
|
643 | #if EV_AVOID_STDIO |
|
|
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
645 | #else |
417 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
647 | #endif |
418 | abort (); |
648 | abort (); |
419 | } |
649 | } |
420 | |
650 | |
421 | return ptr; |
651 | return ptr; |
422 | } |
652 | } |
… | |
… | |
424 | #define ev_malloc(size) ev_realloc (0, (size)) |
654 | #define ev_malloc(size) ev_realloc (0, (size)) |
425 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
655 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
426 | |
656 | |
427 | /*****************************************************************************/ |
657 | /*****************************************************************************/ |
428 | |
658 | |
|
|
659 | /* set in reify when reification needed */ |
|
|
660 | #define EV_ANFD_REIFY 1 |
|
|
661 | |
|
|
662 | /* file descriptor info structure */ |
429 | typedef struct |
663 | typedef struct |
430 | { |
664 | { |
431 | WL head; |
665 | WL head; |
432 | unsigned char events; |
666 | unsigned char events; /* the events watched for */ |
|
|
667 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
668 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
433 | unsigned char reify; |
669 | unsigned char unused; |
|
|
670 | #if EV_USE_EPOLL |
|
|
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
672 | #endif |
434 | #if EV_SELECT_IS_WINSOCKET |
673 | #if EV_SELECT_IS_WINSOCKET |
435 | SOCKET handle; |
674 | SOCKET handle; |
436 | #endif |
675 | #endif |
437 | } ANFD; |
676 | } ANFD; |
438 | |
677 | |
|
|
678 | /* stores the pending event set for a given watcher */ |
439 | typedef struct |
679 | typedef struct |
440 | { |
680 | { |
441 | W w; |
681 | W w; |
442 | int events; |
682 | int events; /* the pending event set for the given watcher */ |
443 | } ANPENDING; |
683 | } ANPENDING; |
444 | |
684 | |
445 | #if EV_USE_INOTIFY |
685 | #if EV_USE_INOTIFY |
446 | /* hash table entry per inotify-id */ |
686 | /* hash table entry per inotify-id */ |
447 | typedef struct |
687 | typedef struct |
… | |
… | |
450 | } ANFS; |
690 | } ANFS; |
451 | #endif |
691 | #endif |
452 | |
692 | |
453 | /* Heap Entry */ |
693 | /* Heap Entry */ |
454 | #if EV_HEAP_CACHE_AT |
694 | #if EV_HEAP_CACHE_AT |
|
|
695 | /* a heap element */ |
455 | typedef struct { |
696 | typedef struct { |
456 | ev_tstamp at; |
697 | ev_tstamp at; |
457 | WT w; |
698 | WT w; |
458 | } ANHE; |
699 | } ANHE; |
459 | |
700 | |
460 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
701 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
461 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
702 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
462 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
703 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
463 | #else |
704 | #else |
|
|
705 | /* a heap element */ |
464 | typedef WT ANHE; |
706 | typedef WT ANHE; |
465 | |
707 | |
466 | #define ANHE_w(he) (he) |
708 | #define ANHE_w(he) (he) |
467 | #define ANHE_at(he) (he)->at |
709 | #define ANHE_at(he) (he)->at |
468 | #define ANHE_at_cache(he) |
710 | #define ANHE_at_cache(he) |
… | |
… | |
492 | |
734 | |
493 | static int ev_default_loop_ptr; |
735 | static int ev_default_loop_ptr; |
494 | |
736 | |
495 | #endif |
737 | #endif |
496 | |
738 | |
|
|
739 | #if EV_FEATURE_API |
|
|
740 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
741 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
742 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
743 | #else |
|
|
744 | # define EV_RELEASE_CB (void)0 |
|
|
745 | # define EV_ACQUIRE_CB (void)0 |
|
|
746 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | #define EVBREAK_RECURSE 0x80 |
|
|
750 | |
497 | /*****************************************************************************/ |
751 | /*****************************************************************************/ |
498 | |
752 | |
|
|
753 | #ifndef EV_HAVE_EV_TIME |
499 | ev_tstamp |
754 | ev_tstamp |
500 | ev_time (void) |
755 | ev_time (void) |
501 | { |
756 | { |
502 | #if EV_USE_REALTIME |
757 | #if EV_USE_REALTIME |
|
|
758 | if (expect_true (have_realtime)) |
|
|
759 | { |
503 | struct timespec ts; |
760 | struct timespec ts; |
504 | clock_gettime (CLOCK_REALTIME, &ts); |
761 | clock_gettime (CLOCK_REALTIME, &ts); |
505 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
762 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
506 | #else |
763 | } |
|
|
764 | #endif |
|
|
765 | |
507 | struct timeval tv; |
766 | struct timeval tv; |
508 | gettimeofday (&tv, 0); |
767 | gettimeofday (&tv, 0); |
509 | return tv.tv_sec + tv.tv_usec * 1e-6; |
768 | return tv.tv_sec + tv.tv_usec * 1e-6; |
510 | #endif |
|
|
511 | } |
769 | } |
|
|
770 | #endif |
512 | |
771 | |
513 | ev_tstamp inline_size |
772 | inline_size ev_tstamp |
514 | get_clock (void) |
773 | get_clock (void) |
515 | { |
774 | { |
516 | #if EV_USE_MONOTONIC |
775 | #if EV_USE_MONOTONIC |
517 | if (expect_true (have_monotonic)) |
776 | if (expect_true (have_monotonic)) |
518 | { |
777 | { |
… | |
… | |
539 | if (delay > 0.) |
798 | if (delay > 0.) |
540 | { |
799 | { |
541 | #if EV_USE_NANOSLEEP |
800 | #if EV_USE_NANOSLEEP |
542 | struct timespec ts; |
801 | struct timespec ts; |
543 | |
802 | |
544 | ts.tv_sec = (time_t)delay; |
803 | EV_TS_SET (ts, delay); |
545 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
546 | |
|
|
547 | nanosleep (&ts, 0); |
804 | nanosleep (&ts, 0); |
548 | #elif defined(_WIN32) |
805 | #elif defined(_WIN32) |
549 | Sleep ((unsigned long)(delay * 1e3)); |
806 | Sleep ((unsigned long)(delay * 1e3)); |
550 | #else |
807 | #else |
551 | struct timeval tv; |
808 | struct timeval tv; |
552 | |
809 | |
553 | tv.tv_sec = (time_t)delay; |
810 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
554 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
811 | /* something not guaranteed by newer posix versions, but guaranteed */ |
555 | |
812 | /* by older ones */ |
|
|
813 | EV_TV_SET (tv, delay); |
556 | select (0, 0, 0, 0, &tv); |
814 | select (0, 0, 0, 0, &tv); |
557 | #endif |
815 | #endif |
558 | } |
816 | } |
559 | } |
817 | } |
560 | |
818 | |
561 | /*****************************************************************************/ |
819 | /*****************************************************************************/ |
562 | |
820 | |
563 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
821 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
564 | |
822 | |
565 | int inline_size |
823 | /* find a suitable new size for the given array, */ |
|
|
824 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
825 | inline_size int |
566 | array_nextsize (int elem, int cur, int cnt) |
826 | array_nextsize (int elem, int cur, int cnt) |
567 | { |
827 | { |
568 | int ncur = cur + 1; |
828 | int ncur = cur + 1; |
569 | |
829 | |
570 | do |
830 | do |
… | |
… | |
587 | array_realloc (int elem, void *base, int *cur, int cnt) |
847 | array_realloc (int elem, void *base, int *cur, int cnt) |
588 | { |
848 | { |
589 | *cur = array_nextsize (elem, *cur, cnt); |
849 | *cur = array_nextsize (elem, *cur, cnt); |
590 | return ev_realloc (base, elem * *cur); |
850 | return ev_realloc (base, elem * *cur); |
591 | } |
851 | } |
|
|
852 | |
|
|
853 | #define array_init_zero(base,count) \ |
|
|
854 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
592 | |
855 | |
593 | #define array_needsize(type,base,cur,cnt,init) \ |
856 | #define array_needsize(type,base,cur,cnt,init) \ |
594 | if (expect_false ((cnt) > (cur))) \ |
857 | if (expect_false ((cnt) > (cur))) \ |
595 | { \ |
858 | { \ |
596 | int ocur_ = (cur); \ |
859 | int ocur_ = (cur); \ |
… | |
… | |
608 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
871 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
609 | } |
872 | } |
610 | #endif |
873 | #endif |
611 | |
874 | |
612 | #define array_free(stem, idx) \ |
875 | #define array_free(stem, idx) \ |
613 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
876 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
614 | |
877 | |
615 | /*****************************************************************************/ |
878 | /*****************************************************************************/ |
|
|
879 | |
|
|
880 | /* dummy callback for pending events */ |
|
|
881 | static void noinline |
|
|
882 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
883 | { |
|
|
884 | } |
616 | |
885 | |
617 | void noinline |
886 | void noinline |
618 | ev_feed_event (EV_P_ void *w, int revents) |
887 | ev_feed_event (EV_P_ void *w, int revents) |
619 | { |
888 | { |
620 | W w_ = (W)w; |
889 | W w_ = (W)w; |
… | |
… | |
629 | pendings [pri][w_->pending - 1].w = w_; |
898 | pendings [pri][w_->pending - 1].w = w_; |
630 | pendings [pri][w_->pending - 1].events = revents; |
899 | pendings [pri][w_->pending - 1].events = revents; |
631 | } |
900 | } |
632 | } |
901 | } |
633 | |
902 | |
634 | void inline_speed |
903 | inline_speed void |
|
|
904 | feed_reverse (EV_P_ W w) |
|
|
905 | { |
|
|
906 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
907 | rfeeds [rfeedcnt++] = w; |
|
|
908 | } |
|
|
909 | |
|
|
910 | inline_size void |
|
|
911 | feed_reverse_done (EV_P_ int revents) |
|
|
912 | { |
|
|
913 | do |
|
|
914 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
915 | while (rfeedcnt); |
|
|
916 | } |
|
|
917 | |
|
|
918 | inline_speed void |
635 | queue_events (EV_P_ W *events, int eventcnt, int type) |
919 | queue_events (EV_P_ W *events, int eventcnt, int type) |
636 | { |
920 | { |
637 | int i; |
921 | int i; |
638 | |
922 | |
639 | for (i = 0; i < eventcnt; ++i) |
923 | for (i = 0; i < eventcnt; ++i) |
640 | ev_feed_event (EV_A_ events [i], type); |
924 | ev_feed_event (EV_A_ events [i], type); |
641 | } |
925 | } |
642 | |
926 | |
643 | /*****************************************************************************/ |
927 | /*****************************************************************************/ |
644 | |
928 | |
645 | void inline_size |
929 | inline_speed void |
646 | anfds_init (ANFD *base, int count) |
|
|
647 | { |
|
|
648 | while (count--) |
|
|
649 | { |
|
|
650 | base->head = 0; |
|
|
651 | base->events = EV_NONE; |
|
|
652 | base->reify = 0; |
|
|
653 | |
|
|
654 | ++base; |
|
|
655 | } |
|
|
656 | } |
|
|
657 | |
|
|
658 | void inline_speed |
|
|
659 | fd_event (EV_P_ int fd, int revents) |
930 | fd_event_nocheck (EV_P_ int fd, int revents) |
660 | { |
931 | { |
661 | ANFD *anfd = anfds + fd; |
932 | ANFD *anfd = anfds + fd; |
662 | ev_io *w; |
933 | ev_io *w; |
663 | |
934 | |
664 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
935 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
668 | if (ev) |
939 | if (ev) |
669 | ev_feed_event (EV_A_ (W)w, ev); |
940 | ev_feed_event (EV_A_ (W)w, ev); |
670 | } |
941 | } |
671 | } |
942 | } |
672 | |
943 | |
|
|
944 | /* do not submit kernel events for fds that have reify set */ |
|
|
945 | /* because that means they changed while we were polling for new events */ |
|
|
946 | inline_speed void |
|
|
947 | fd_event (EV_P_ int fd, int revents) |
|
|
948 | { |
|
|
949 | ANFD *anfd = anfds + fd; |
|
|
950 | |
|
|
951 | if (expect_true (!anfd->reify)) |
|
|
952 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
953 | } |
|
|
954 | |
673 | void |
955 | void |
674 | ev_feed_fd_event (EV_P_ int fd, int revents) |
956 | ev_feed_fd_event (EV_P_ int fd, int revents) |
675 | { |
957 | { |
676 | if (fd >= 0 && fd < anfdmax) |
958 | if (fd >= 0 && fd < anfdmax) |
677 | fd_event (EV_A_ fd, revents); |
959 | fd_event_nocheck (EV_A_ fd, revents); |
678 | } |
960 | } |
679 | |
961 | |
680 | void inline_size |
962 | /* make sure the external fd watch events are in-sync */ |
|
|
963 | /* with the kernel/libev internal state */ |
|
|
964 | inline_size void |
681 | fd_reify (EV_P) |
965 | fd_reify (EV_P) |
682 | { |
966 | { |
683 | int i; |
967 | int i; |
684 | |
968 | |
685 | for (i = 0; i < fdchangecnt; ++i) |
969 | for (i = 0; i < fdchangecnt; ++i) |
686 | { |
970 | { |
687 | int fd = fdchanges [i]; |
971 | int fd = fdchanges [i]; |
688 | ANFD *anfd = anfds + fd; |
972 | ANFD *anfd = anfds + fd; |
689 | ev_io *w; |
973 | ev_io *w; |
690 | |
974 | |
691 | unsigned char events = 0; |
975 | unsigned char o_events = anfd->events; |
|
|
976 | unsigned char o_reify = anfd->reify; |
692 | |
977 | |
693 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
978 | anfd->reify = 0; |
694 | events |= (unsigned char)w->events; |
|
|
695 | |
979 | |
696 | #if EV_SELECT_IS_WINSOCKET |
980 | #if EV_SELECT_IS_WINSOCKET |
697 | if (events) |
981 | if (o_reify & EV__IOFDSET) |
698 | { |
982 | { |
699 | unsigned long argp; |
983 | unsigned long arg; |
700 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
701 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
984 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
702 | #else |
|
|
703 | anfd->handle = _get_osfhandle (fd); |
|
|
704 | #endif |
|
|
705 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
985 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
706 | } |
986 | } |
707 | #endif |
987 | #endif |
708 | |
988 | |
|
|
989 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
709 | { |
990 | { |
710 | unsigned char o_events = anfd->events; |
|
|
711 | unsigned char o_reify = anfd->reify; |
|
|
712 | |
|
|
713 | anfd->reify = 0; |
|
|
714 | anfd->events = events; |
991 | anfd->events = 0; |
715 | |
992 | |
716 | if (o_events != events || o_reify & EV_IOFDSET) |
993 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
994 | anfd->events |= (unsigned char)w->events; |
|
|
995 | |
|
|
996 | if (o_events != anfd->events) |
|
|
997 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
998 | } |
|
|
999 | |
|
|
1000 | if (o_reify & EV__IOFDSET) |
717 | backend_modify (EV_A_ fd, o_events, events); |
1001 | backend_modify (EV_A_ fd, o_events, anfd->events); |
718 | } |
|
|
719 | } |
1002 | } |
720 | |
1003 | |
721 | fdchangecnt = 0; |
1004 | fdchangecnt = 0; |
722 | } |
1005 | } |
723 | |
1006 | |
724 | void inline_size |
1007 | /* something about the given fd changed */ |
|
|
1008 | inline_size void |
725 | fd_change (EV_P_ int fd, int flags) |
1009 | fd_change (EV_P_ int fd, int flags) |
726 | { |
1010 | { |
727 | unsigned char reify = anfds [fd].reify; |
1011 | unsigned char reify = anfds [fd].reify; |
728 | anfds [fd].reify |= flags; |
1012 | anfds [fd].reify |= flags; |
729 | |
1013 | |
… | |
… | |
733 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1017 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
734 | fdchanges [fdchangecnt - 1] = fd; |
1018 | fdchanges [fdchangecnt - 1] = fd; |
735 | } |
1019 | } |
736 | } |
1020 | } |
737 | |
1021 | |
738 | void inline_speed |
1022 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1023 | inline_speed void |
739 | fd_kill (EV_P_ int fd) |
1024 | fd_kill (EV_P_ int fd) |
740 | { |
1025 | { |
741 | ev_io *w; |
1026 | ev_io *w; |
742 | |
1027 | |
743 | while ((w = (ev_io *)anfds [fd].head)) |
1028 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
745 | ev_io_stop (EV_A_ w); |
1030 | ev_io_stop (EV_A_ w); |
746 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1031 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
747 | } |
1032 | } |
748 | } |
1033 | } |
749 | |
1034 | |
750 | int inline_size |
1035 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1036 | inline_size int |
751 | fd_valid (int fd) |
1037 | fd_valid (int fd) |
752 | { |
1038 | { |
753 | #ifdef _WIN32 |
1039 | #ifdef _WIN32 |
754 | return _get_osfhandle (fd) != -1; |
1040 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
755 | #else |
1041 | #else |
756 | return fcntl (fd, F_GETFD) != -1; |
1042 | return fcntl (fd, F_GETFD) != -1; |
757 | #endif |
1043 | #endif |
758 | } |
1044 | } |
759 | |
1045 | |
… | |
… | |
763 | { |
1049 | { |
764 | int fd; |
1050 | int fd; |
765 | |
1051 | |
766 | for (fd = 0; fd < anfdmax; ++fd) |
1052 | for (fd = 0; fd < anfdmax; ++fd) |
767 | if (anfds [fd].events) |
1053 | if (anfds [fd].events) |
768 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1054 | if (!fd_valid (fd) && errno == EBADF) |
769 | fd_kill (EV_A_ fd); |
1055 | fd_kill (EV_A_ fd); |
770 | } |
1056 | } |
771 | |
1057 | |
772 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1058 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
773 | static void noinline |
1059 | static void noinline |
… | |
… | |
777 | |
1063 | |
778 | for (fd = anfdmax; fd--; ) |
1064 | for (fd = anfdmax; fd--; ) |
779 | if (anfds [fd].events) |
1065 | if (anfds [fd].events) |
780 | { |
1066 | { |
781 | fd_kill (EV_A_ fd); |
1067 | fd_kill (EV_A_ fd); |
782 | return; |
1068 | break; |
783 | } |
1069 | } |
784 | } |
1070 | } |
785 | |
1071 | |
786 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1072 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
787 | static void noinline |
1073 | static void noinline |
… | |
… | |
791 | |
1077 | |
792 | for (fd = 0; fd < anfdmax; ++fd) |
1078 | for (fd = 0; fd < anfdmax; ++fd) |
793 | if (anfds [fd].events) |
1079 | if (anfds [fd].events) |
794 | { |
1080 | { |
795 | anfds [fd].events = 0; |
1081 | anfds [fd].events = 0; |
|
|
1082 | anfds [fd].emask = 0; |
796 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1083 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
797 | } |
1084 | } |
798 | } |
1085 | } |
799 | |
1086 | |
|
|
1087 | /* used to prepare libev internal fd's */ |
|
|
1088 | /* this is not fork-safe */ |
|
|
1089 | inline_speed void |
|
|
1090 | fd_intern (int fd) |
|
|
1091 | { |
|
|
1092 | #ifdef _WIN32 |
|
|
1093 | unsigned long arg = 1; |
|
|
1094 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1095 | #else |
|
|
1096 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1097 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1098 | #endif |
|
|
1099 | } |
|
|
1100 | |
800 | /*****************************************************************************/ |
1101 | /*****************************************************************************/ |
801 | |
1102 | |
802 | /* |
1103 | /* |
803 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1104 | * the heap functions want a real array index. array index 0 is guaranteed to not |
804 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1105 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
805 | * the branching factor of the d-tree. |
1106 | * the branching factor of the d-tree. |
806 | */ |
1107 | */ |
807 | |
1108 | |
808 | /* |
1109 | /* |
… | |
… | |
817 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1118 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
818 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1119 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
819 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1120 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
820 | |
1121 | |
821 | /* away from the root */ |
1122 | /* away from the root */ |
822 | void inline_speed |
1123 | inline_speed void |
823 | downheap (ANHE *heap, int N, int k) |
1124 | downheap (ANHE *heap, int N, int k) |
824 | { |
1125 | { |
825 | ANHE he = heap [k]; |
1126 | ANHE he = heap [k]; |
826 | ANHE *E = heap + N + HEAP0; |
1127 | ANHE *E = heap + N + HEAP0; |
827 | |
1128 | |
… | |
… | |
867 | #define HEAP0 1 |
1168 | #define HEAP0 1 |
868 | #define HPARENT(k) ((k) >> 1) |
1169 | #define HPARENT(k) ((k) >> 1) |
869 | #define UPHEAP_DONE(p,k) (!(p)) |
1170 | #define UPHEAP_DONE(p,k) (!(p)) |
870 | |
1171 | |
871 | /* away from the root */ |
1172 | /* away from the root */ |
872 | void inline_speed |
1173 | inline_speed void |
873 | downheap (ANHE *heap, int N, int k) |
1174 | downheap (ANHE *heap, int N, int k) |
874 | { |
1175 | { |
875 | ANHE he = heap [k]; |
1176 | ANHE he = heap [k]; |
876 | |
1177 | |
877 | for (;;) |
1178 | for (;;) |
878 | { |
1179 | { |
879 | int c = k << 1; |
1180 | int c = k << 1; |
880 | |
1181 | |
881 | if (c > N + HEAP0 - 1) |
1182 | if (c >= N + HEAP0) |
882 | break; |
1183 | break; |
883 | |
1184 | |
884 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1185 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
885 | ? 1 : 0; |
1186 | ? 1 : 0; |
886 | |
1187 | |
… | |
… | |
897 | ev_active (ANHE_w (he)) = k; |
1198 | ev_active (ANHE_w (he)) = k; |
898 | } |
1199 | } |
899 | #endif |
1200 | #endif |
900 | |
1201 | |
901 | /* towards the root */ |
1202 | /* towards the root */ |
902 | void inline_speed |
1203 | inline_speed void |
903 | upheap (ANHE *heap, int k) |
1204 | upheap (ANHE *heap, int k) |
904 | { |
1205 | { |
905 | ANHE he = heap [k]; |
1206 | ANHE he = heap [k]; |
906 | |
1207 | |
907 | for (;;) |
1208 | for (;;) |
… | |
… | |
918 | |
1219 | |
919 | heap [k] = he; |
1220 | heap [k] = he; |
920 | ev_active (ANHE_w (he)) = k; |
1221 | ev_active (ANHE_w (he)) = k; |
921 | } |
1222 | } |
922 | |
1223 | |
923 | void inline_size |
1224 | /* move an element suitably so it is in a correct place */ |
|
|
1225 | inline_size void |
924 | adjustheap (ANHE *heap, int N, int k) |
1226 | adjustheap (ANHE *heap, int N, int k) |
925 | { |
1227 | { |
926 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1228 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
927 | upheap (heap, k); |
1229 | upheap (heap, k); |
928 | else |
1230 | else |
929 | downheap (heap, N, k); |
1231 | downheap (heap, N, k); |
930 | } |
1232 | } |
931 | |
1233 | |
932 | /* rebuild the heap: this function is used only once and executed rarely */ |
1234 | /* rebuild the heap: this function is used only once and executed rarely */ |
933 | void inline_size |
1235 | inline_size void |
934 | reheap (ANHE *heap, int N) |
1236 | reheap (ANHE *heap, int N) |
935 | { |
1237 | { |
936 | int i; |
1238 | int i; |
|
|
1239 | |
937 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1240 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
938 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
1241 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
939 | for (i = 0; i < N; ++i) |
1242 | for (i = 0; i < N; ++i) |
940 | upheap (heap, i + HEAP0); |
1243 | upheap (heap, i + HEAP0); |
941 | } |
1244 | } |
942 | |
1245 | |
943 | #if EV_VERIFY |
|
|
944 | static void |
|
|
945 | checkheap (ANHE *heap, int N) |
|
|
946 | { |
|
|
947 | int i; |
|
|
948 | |
|
|
949 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
950 | { |
|
|
951 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
952 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
953 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
954 | } |
|
|
955 | } |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | /*****************************************************************************/ |
1246 | /*****************************************************************************/ |
959 | |
1247 | |
|
|
1248 | /* associate signal watchers to a signal signal */ |
960 | typedef struct |
1249 | typedef struct |
961 | { |
1250 | { |
|
|
1251 | EV_ATOMIC_T pending; |
|
|
1252 | #if EV_MULTIPLICITY |
|
|
1253 | EV_P; |
|
|
1254 | #endif |
962 | WL head; |
1255 | WL head; |
963 | EV_ATOMIC_T gotsig; |
|
|
964 | } ANSIG; |
1256 | } ANSIG; |
965 | |
1257 | |
966 | static ANSIG *signals; |
1258 | static ANSIG signals [EV_NSIG - 1]; |
967 | static int signalmax; |
|
|
968 | |
|
|
969 | static EV_ATOMIC_T gotsig; |
|
|
970 | |
|
|
971 | void inline_size |
|
|
972 | signals_init (ANSIG *base, int count) |
|
|
973 | { |
|
|
974 | while (count--) |
|
|
975 | { |
|
|
976 | base->head = 0; |
|
|
977 | base->gotsig = 0; |
|
|
978 | |
|
|
979 | ++base; |
|
|
980 | } |
|
|
981 | } |
|
|
982 | |
1259 | |
983 | /*****************************************************************************/ |
1260 | /*****************************************************************************/ |
984 | |
1261 | |
985 | void inline_speed |
1262 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
986 | fd_intern (int fd) |
|
|
987 | { |
|
|
988 | #ifdef _WIN32 |
|
|
989 | int arg = 1; |
|
|
990 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
991 | #else |
|
|
992 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
993 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
994 | #endif |
|
|
995 | } |
|
|
996 | |
1263 | |
997 | static void noinline |
1264 | static void noinline |
998 | evpipe_init (EV_P) |
1265 | evpipe_init (EV_P) |
999 | { |
1266 | { |
1000 | if (!ev_is_active (&pipeev)) |
1267 | if (!ev_is_active (&pipe_w)) |
1001 | { |
1268 | { |
1002 | #if EV_USE_EVENTFD |
1269 | # if EV_USE_EVENTFD |
|
|
1270 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1271 | if (evfd < 0 && errno == EINVAL) |
1003 | if ((evfd = eventfd (0, 0)) >= 0) |
1272 | evfd = eventfd (0, 0); |
|
|
1273 | |
|
|
1274 | if (evfd >= 0) |
1004 | { |
1275 | { |
1005 | evpipe [0] = -1; |
1276 | evpipe [0] = -1; |
1006 | fd_intern (evfd); |
1277 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1007 | ev_io_set (&pipeev, evfd, EV_READ); |
1278 | ev_io_set (&pipe_w, evfd, EV_READ); |
1008 | } |
1279 | } |
1009 | else |
1280 | else |
1010 | #endif |
1281 | # endif |
1011 | { |
1282 | { |
1012 | while (pipe (evpipe)) |
1283 | while (pipe (evpipe)) |
1013 | syserr ("(libev) error creating signal/async pipe"); |
1284 | ev_syserr ("(libev) error creating signal/async pipe"); |
1014 | |
1285 | |
1015 | fd_intern (evpipe [0]); |
1286 | fd_intern (evpipe [0]); |
1016 | fd_intern (evpipe [1]); |
1287 | fd_intern (evpipe [1]); |
1017 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1288 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1018 | } |
1289 | } |
1019 | |
1290 | |
1020 | ev_io_start (EV_A_ &pipeev); |
1291 | ev_io_start (EV_A_ &pipe_w); |
1021 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1292 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1022 | } |
1293 | } |
1023 | } |
1294 | } |
1024 | |
1295 | |
1025 | void inline_size |
1296 | inline_size void |
1026 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1297 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1027 | { |
1298 | { |
1028 | if (!*flag) |
1299 | if (!*flag) |
1029 | { |
1300 | { |
1030 | int old_errno = errno; /* save errno because write might clobber it */ |
1301 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1302 | char dummy; |
1031 | |
1303 | |
1032 | *flag = 1; |
1304 | *flag = 1; |
1033 | |
1305 | |
1034 | #if EV_USE_EVENTFD |
1306 | #if EV_USE_EVENTFD |
1035 | if (evfd >= 0) |
1307 | if (evfd >= 0) |
… | |
… | |
1037 | uint64_t counter = 1; |
1309 | uint64_t counter = 1; |
1038 | write (evfd, &counter, sizeof (uint64_t)); |
1310 | write (evfd, &counter, sizeof (uint64_t)); |
1039 | } |
1311 | } |
1040 | else |
1312 | else |
1041 | #endif |
1313 | #endif |
|
|
1314 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1315 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1316 | /* so when you think this write should be a send instead, please find out */ |
|
|
1317 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1318 | /* tell me. thank you. */ |
1042 | write (evpipe [1], &old_errno, 1); |
1319 | write (evpipe [1], &dummy, 1); |
1043 | |
1320 | |
1044 | errno = old_errno; |
1321 | errno = old_errno; |
1045 | } |
1322 | } |
1046 | } |
1323 | } |
1047 | |
1324 | |
|
|
1325 | /* called whenever the libev signal pipe */ |
|
|
1326 | /* got some events (signal, async) */ |
1048 | static void |
1327 | static void |
1049 | pipecb (EV_P_ ev_io *iow, int revents) |
1328 | pipecb (EV_P_ ev_io *iow, int revents) |
1050 | { |
1329 | { |
|
|
1330 | int i; |
|
|
1331 | |
1051 | #if EV_USE_EVENTFD |
1332 | #if EV_USE_EVENTFD |
1052 | if (evfd >= 0) |
1333 | if (evfd >= 0) |
1053 | { |
1334 | { |
1054 | uint64_t counter; |
1335 | uint64_t counter; |
1055 | read (evfd, &counter, sizeof (uint64_t)); |
1336 | read (evfd, &counter, sizeof (uint64_t)); |
1056 | } |
1337 | } |
1057 | else |
1338 | else |
1058 | #endif |
1339 | #endif |
1059 | { |
1340 | { |
1060 | char dummy; |
1341 | char dummy; |
|
|
1342 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1061 | read (evpipe [0], &dummy, 1); |
1343 | read (evpipe [0], &dummy, 1); |
1062 | } |
1344 | } |
1063 | |
1345 | |
1064 | if (gotsig && ev_is_default_loop (EV_A)) |
1346 | if (sig_pending) |
1065 | { |
1347 | { |
1066 | int signum; |
1348 | sig_pending = 0; |
1067 | gotsig = 0; |
|
|
1068 | |
1349 | |
1069 | for (signum = signalmax; signum--; ) |
1350 | for (i = EV_NSIG - 1; i--; ) |
1070 | if (signals [signum].gotsig) |
1351 | if (expect_false (signals [i].pending)) |
1071 | ev_feed_signal_event (EV_A_ signum + 1); |
1352 | ev_feed_signal_event (EV_A_ i + 1); |
1072 | } |
1353 | } |
1073 | |
1354 | |
1074 | #if EV_ASYNC_ENABLE |
1355 | #if EV_ASYNC_ENABLE |
1075 | if (gotasync) |
1356 | if (async_pending) |
1076 | { |
1357 | { |
1077 | int i; |
1358 | async_pending = 0; |
1078 | gotasync = 0; |
|
|
1079 | |
1359 | |
1080 | for (i = asynccnt; i--; ) |
1360 | for (i = asynccnt; i--; ) |
1081 | if (asyncs [i]->sent) |
1361 | if (asyncs [i]->sent) |
1082 | { |
1362 | { |
1083 | asyncs [i]->sent = 0; |
1363 | asyncs [i]->sent = 0; |
… | |
… | |
1091 | |
1371 | |
1092 | static void |
1372 | static void |
1093 | ev_sighandler (int signum) |
1373 | ev_sighandler (int signum) |
1094 | { |
1374 | { |
1095 | #if EV_MULTIPLICITY |
1375 | #if EV_MULTIPLICITY |
1096 | struct ev_loop *loop = &default_loop_struct; |
1376 | EV_P = signals [signum - 1].loop; |
1097 | #endif |
1377 | #endif |
1098 | |
1378 | |
1099 | #if _WIN32 |
1379 | #ifdef _WIN32 |
1100 | signal (signum, ev_sighandler); |
1380 | signal (signum, ev_sighandler); |
1101 | #endif |
1381 | #endif |
1102 | |
1382 | |
1103 | signals [signum - 1].gotsig = 1; |
1383 | signals [signum - 1].pending = 1; |
1104 | evpipe_write (EV_A_ &gotsig); |
1384 | evpipe_write (EV_A_ &sig_pending); |
1105 | } |
1385 | } |
1106 | |
1386 | |
1107 | void noinline |
1387 | void noinline |
1108 | ev_feed_signal_event (EV_P_ int signum) |
1388 | ev_feed_signal_event (EV_P_ int signum) |
1109 | { |
1389 | { |
1110 | WL w; |
1390 | WL w; |
1111 | |
1391 | |
|
|
1392 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1393 | return; |
|
|
1394 | |
|
|
1395 | --signum; |
|
|
1396 | |
1112 | #if EV_MULTIPLICITY |
1397 | #if EV_MULTIPLICITY |
1113 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1398 | /* it is permissible to try to feed a signal to the wrong loop */ |
1114 | #endif |
1399 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1115 | |
1400 | |
1116 | --signum; |
1401 | if (expect_false (signals [signum].loop != EV_A)) |
1117 | |
|
|
1118 | if (signum < 0 || signum >= signalmax) |
|
|
1119 | return; |
1402 | return; |
|
|
1403 | #endif |
1120 | |
1404 | |
1121 | signals [signum].gotsig = 0; |
1405 | signals [signum].pending = 0; |
1122 | |
1406 | |
1123 | for (w = signals [signum].head; w; w = w->next) |
1407 | for (w = signals [signum].head; w; w = w->next) |
1124 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1408 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1125 | } |
1409 | } |
1126 | |
1410 | |
|
|
1411 | #if EV_USE_SIGNALFD |
|
|
1412 | static void |
|
|
1413 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1414 | { |
|
|
1415 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1416 | |
|
|
1417 | for (;;) |
|
|
1418 | { |
|
|
1419 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1420 | |
|
|
1421 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1422 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1423 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1424 | |
|
|
1425 | if (res < (ssize_t)sizeof (si)) |
|
|
1426 | break; |
|
|
1427 | } |
|
|
1428 | } |
|
|
1429 | #endif |
|
|
1430 | |
|
|
1431 | #endif |
|
|
1432 | |
1127 | /*****************************************************************************/ |
1433 | /*****************************************************************************/ |
1128 | |
1434 | |
|
|
1435 | #if EV_CHILD_ENABLE |
1129 | static WL childs [EV_PID_HASHSIZE]; |
1436 | static WL childs [EV_PID_HASHSIZE]; |
1130 | |
|
|
1131 | #ifndef _WIN32 |
|
|
1132 | |
1437 | |
1133 | static ev_signal childev; |
1438 | static ev_signal childev; |
1134 | |
1439 | |
1135 | #ifndef WIFCONTINUED |
1440 | #ifndef WIFCONTINUED |
1136 | # define WIFCONTINUED(status) 0 |
1441 | # define WIFCONTINUED(status) 0 |
1137 | #endif |
1442 | #endif |
1138 | |
1443 | |
1139 | void inline_speed |
1444 | /* handle a single child status event */ |
|
|
1445 | inline_speed void |
1140 | child_reap (EV_P_ int chain, int pid, int status) |
1446 | child_reap (EV_P_ int chain, int pid, int status) |
1141 | { |
1447 | { |
1142 | ev_child *w; |
1448 | ev_child *w; |
1143 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1449 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1144 | |
1450 | |
1145 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1451 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1146 | { |
1452 | { |
1147 | if ((w->pid == pid || !w->pid) |
1453 | if ((w->pid == pid || !w->pid) |
1148 | && (!traced || (w->flags & 1))) |
1454 | && (!traced || (w->flags & 1))) |
1149 | { |
1455 | { |
1150 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1456 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1157 | |
1463 | |
1158 | #ifndef WCONTINUED |
1464 | #ifndef WCONTINUED |
1159 | # define WCONTINUED 0 |
1465 | # define WCONTINUED 0 |
1160 | #endif |
1466 | #endif |
1161 | |
1467 | |
|
|
1468 | /* called on sigchld etc., calls waitpid */ |
1162 | static void |
1469 | static void |
1163 | childcb (EV_P_ ev_signal *sw, int revents) |
1470 | childcb (EV_P_ ev_signal *sw, int revents) |
1164 | { |
1471 | { |
1165 | int pid, status; |
1472 | int pid, status; |
1166 | |
1473 | |
… | |
… | |
1174 | /* make sure we are called again until all children have been reaped */ |
1481 | /* make sure we are called again until all children have been reaped */ |
1175 | /* we need to do it this way so that the callback gets called before we continue */ |
1482 | /* we need to do it this way so that the callback gets called before we continue */ |
1176 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1483 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1177 | |
1484 | |
1178 | child_reap (EV_A_ pid, pid, status); |
1485 | child_reap (EV_A_ pid, pid, status); |
1179 | if (EV_PID_HASHSIZE > 1) |
1486 | if ((EV_PID_HASHSIZE) > 1) |
1180 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1487 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1181 | } |
1488 | } |
1182 | |
1489 | |
1183 | #endif |
1490 | #endif |
1184 | |
1491 | |
… | |
… | |
1247 | /* kqueue is borked on everything but netbsd apparently */ |
1554 | /* kqueue is borked on everything but netbsd apparently */ |
1248 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1555 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1249 | flags &= ~EVBACKEND_KQUEUE; |
1556 | flags &= ~EVBACKEND_KQUEUE; |
1250 | #endif |
1557 | #endif |
1251 | #ifdef __APPLE__ |
1558 | #ifdef __APPLE__ |
1252 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1559 | /* only select works correctly on that "unix-certified" platform */ |
1253 | flags &= ~EVBACKEND_POLL; |
1560 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1561 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1562 | #endif |
|
|
1563 | #ifdef __FreeBSD__ |
|
|
1564 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1254 | #endif |
1565 | #endif |
1255 | |
1566 | |
1256 | return flags; |
1567 | return flags; |
1257 | } |
1568 | } |
1258 | |
1569 | |
… | |
… | |
1260 | ev_embeddable_backends (void) |
1571 | ev_embeddable_backends (void) |
1261 | { |
1572 | { |
1262 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1573 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1263 | |
1574 | |
1264 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1575 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1265 | /* please fix it and tell me how to detect the fix */ |
1576 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1266 | flags &= ~EVBACKEND_EPOLL; |
1577 | flags &= ~EVBACKEND_EPOLL; |
1267 | |
1578 | |
1268 | return flags; |
1579 | return flags; |
1269 | } |
1580 | } |
1270 | |
1581 | |
1271 | unsigned int |
1582 | unsigned int |
1272 | ev_backend (EV_P) |
1583 | ev_backend (EV_P) |
1273 | { |
1584 | { |
1274 | return backend; |
1585 | return backend; |
1275 | } |
1586 | } |
1276 | |
1587 | |
|
|
1588 | #if EV_FEATURE_API |
1277 | unsigned int |
1589 | unsigned int |
1278 | ev_loop_count (EV_P) |
1590 | ev_iteration (EV_P) |
1279 | { |
1591 | { |
1280 | return loop_count; |
1592 | return loop_count; |
1281 | } |
1593 | } |
1282 | |
1594 | |
|
|
1595 | unsigned int |
|
|
1596 | ev_depth (EV_P) |
|
|
1597 | { |
|
|
1598 | return loop_depth; |
|
|
1599 | } |
|
|
1600 | |
1283 | void |
1601 | void |
1284 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1602 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1285 | { |
1603 | { |
1286 | io_blocktime = interval; |
1604 | io_blocktime = interval; |
1287 | } |
1605 | } |
… | |
… | |
1290 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1608 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1291 | { |
1609 | { |
1292 | timeout_blocktime = interval; |
1610 | timeout_blocktime = interval; |
1293 | } |
1611 | } |
1294 | |
1612 | |
|
|
1613 | void |
|
|
1614 | ev_set_userdata (EV_P_ void *data) |
|
|
1615 | { |
|
|
1616 | userdata = data; |
|
|
1617 | } |
|
|
1618 | |
|
|
1619 | void * |
|
|
1620 | ev_userdata (EV_P) |
|
|
1621 | { |
|
|
1622 | return userdata; |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1626 | { |
|
|
1627 | invoke_cb = invoke_pending_cb; |
|
|
1628 | } |
|
|
1629 | |
|
|
1630 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1631 | { |
|
|
1632 | release_cb = release; |
|
|
1633 | acquire_cb = acquire; |
|
|
1634 | } |
|
|
1635 | #endif |
|
|
1636 | |
|
|
1637 | /* initialise a loop structure, must be zero-initialised */ |
1295 | static void noinline |
1638 | static void noinline |
1296 | loop_init (EV_P_ unsigned int flags) |
1639 | loop_init (EV_P_ unsigned int flags) |
1297 | { |
1640 | { |
1298 | if (!backend) |
1641 | if (!backend) |
1299 | { |
1642 | { |
|
|
1643 | #if EV_USE_REALTIME |
|
|
1644 | if (!have_realtime) |
|
|
1645 | { |
|
|
1646 | struct timespec ts; |
|
|
1647 | |
|
|
1648 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1649 | have_realtime = 1; |
|
|
1650 | } |
|
|
1651 | #endif |
|
|
1652 | |
1300 | #if EV_USE_MONOTONIC |
1653 | #if EV_USE_MONOTONIC |
|
|
1654 | if (!have_monotonic) |
1301 | { |
1655 | { |
1302 | struct timespec ts; |
1656 | struct timespec ts; |
|
|
1657 | |
1303 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1658 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1304 | have_monotonic = 1; |
1659 | have_monotonic = 1; |
1305 | } |
1660 | } |
1306 | #endif |
1661 | #endif |
|
|
1662 | |
|
|
1663 | /* pid check not overridable via env */ |
|
|
1664 | #ifndef _WIN32 |
|
|
1665 | if (flags & EVFLAG_FORKCHECK) |
|
|
1666 | curpid = getpid (); |
|
|
1667 | #endif |
|
|
1668 | |
|
|
1669 | if (!(flags & EVFLAG_NOENV) |
|
|
1670 | && !enable_secure () |
|
|
1671 | && getenv ("LIBEV_FLAGS")) |
|
|
1672 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1307 | |
1673 | |
1308 | ev_rt_now = ev_time (); |
1674 | ev_rt_now = ev_time (); |
1309 | mn_now = get_clock (); |
1675 | mn_now = get_clock (); |
1310 | now_floor = mn_now; |
1676 | now_floor = mn_now; |
1311 | rtmn_diff = ev_rt_now - mn_now; |
1677 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1678 | #if EV_FEATURE_API |
|
|
1679 | invoke_cb = ev_invoke_pending; |
|
|
1680 | #endif |
1312 | |
1681 | |
1313 | io_blocktime = 0.; |
1682 | io_blocktime = 0.; |
1314 | timeout_blocktime = 0.; |
1683 | timeout_blocktime = 0.; |
1315 | backend = 0; |
1684 | backend = 0; |
1316 | backend_fd = -1; |
1685 | backend_fd = -1; |
1317 | gotasync = 0; |
1686 | sig_pending = 0; |
|
|
1687 | #if EV_ASYNC_ENABLE |
|
|
1688 | async_pending = 0; |
|
|
1689 | #endif |
1318 | #if EV_USE_INOTIFY |
1690 | #if EV_USE_INOTIFY |
1319 | fs_fd = -2; |
1691 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1320 | #endif |
1692 | #endif |
1321 | |
1693 | #if EV_USE_SIGNALFD |
1322 | /* pid check not overridable via env */ |
1694 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1323 | #ifndef _WIN32 |
|
|
1324 | if (flags & EVFLAG_FORKCHECK) |
|
|
1325 | curpid = getpid (); |
|
|
1326 | #endif |
1695 | #endif |
1327 | |
|
|
1328 | if (!(flags & EVFLAG_NOENV) |
|
|
1329 | && !enable_secure () |
|
|
1330 | && getenv ("LIBEV_FLAGS")) |
|
|
1331 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1332 | |
1696 | |
1333 | if (!(flags & 0x0000ffffU)) |
1697 | if (!(flags & 0x0000ffffU)) |
1334 | flags |= ev_recommended_backends (); |
1698 | flags |= ev_recommended_backends (); |
1335 | |
1699 | |
1336 | #if EV_USE_PORT |
1700 | #if EV_USE_PORT |
… | |
… | |
1347 | #endif |
1711 | #endif |
1348 | #if EV_USE_SELECT |
1712 | #if EV_USE_SELECT |
1349 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1713 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1350 | #endif |
1714 | #endif |
1351 | |
1715 | |
|
|
1716 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1717 | |
|
|
1718 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1352 | ev_init (&pipeev, pipecb); |
1719 | ev_init (&pipe_w, pipecb); |
1353 | ev_set_priority (&pipeev, EV_MAXPRI); |
1720 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1721 | #endif |
1354 | } |
1722 | } |
1355 | } |
1723 | } |
1356 | |
1724 | |
|
|
1725 | /* free up a loop structure */ |
1357 | static void noinline |
1726 | static void noinline |
1358 | loop_destroy (EV_P) |
1727 | loop_destroy (EV_P) |
1359 | { |
1728 | { |
1360 | int i; |
1729 | int i; |
1361 | |
1730 | |
1362 | if (ev_is_active (&pipeev)) |
1731 | if (ev_is_active (&pipe_w)) |
1363 | { |
1732 | { |
1364 | ev_ref (EV_A); /* signal watcher */ |
1733 | /*ev_ref (EV_A);*/ |
1365 | ev_io_stop (EV_A_ &pipeev); |
1734 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1366 | |
1735 | |
1367 | #if EV_USE_EVENTFD |
1736 | #if EV_USE_EVENTFD |
1368 | if (evfd >= 0) |
1737 | if (evfd >= 0) |
1369 | close (evfd); |
1738 | close (evfd); |
1370 | #endif |
1739 | #endif |
1371 | |
1740 | |
1372 | if (evpipe [0] >= 0) |
1741 | if (evpipe [0] >= 0) |
1373 | { |
1742 | { |
1374 | close (evpipe [0]); |
1743 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1375 | close (evpipe [1]); |
1744 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1376 | } |
1745 | } |
1377 | } |
1746 | } |
|
|
1747 | |
|
|
1748 | #if EV_USE_SIGNALFD |
|
|
1749 | if (ev_is_active (&sigfd_w)) |
|
|
1750 | close (sigfd); |
|
|
1751 | #endif |
1378 | |
1752 | |
1379 | #if EV_USE_INOTIFY |
1753 | #if EV_USE_INOTIFY |
1380 | if (fs_fd >= 0) |
1754 | if (fs_fd >= 0) |
1381 | close (fs_fd); |
1755 | close (fs_fd); |
1382 | #endif |
1756 | #endif |
… | |
… | |
1406 | #if EV_IDLE_ENABLE |
1780 | #if EV_IDLE_ENABLE |
1407 | array_free (idle, [i]); |
1781 | array_free (idle, [i]); |
1408 | #endif |
1782 | #endif |
1409 | } |
1783 | } |
1410 | |
1784 | |
1411 | ev_free (anfds); anfdmax = 0; |
1785 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1412 | |
1786 | |
1413 | /* have to use the microsoft-never-gets-it-right macro */ |
1787 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1788 | array_free (rfeed, EMPTY); |
1414 | array_free (fdchange, EMPTY); |
1789 | array_free (fdchange, EMPTY); |
1415 | array_free (timer, EMPTY); |
1790 | array_free (timer, EMPTY); |
1416 | #if EV_PERIODIC_ENABLE |
1791 | #if EV_PERIODIC_ENABLE |
1417 | array_free (periodic, EMPTY); |
1792 | array_free (periodic, EMPTY); |
1418 | #endif |
1793 | #endif |
… | |
… | |
1427 | |
1802 | |
1428 | backend = 0; |
1803 | backend = 0; |
1429 | } |
1804 | } |
1430 | |
1805 | |
1431 | #if EV_USE_INOTIFY |
1806 | #if EV_USE_INOTIFY |
1432 | void inline_size infy_fork (EV_P); |
1807 | inline_size void infy_fork (EV_P); |
1433 | #endif |
1808 | #endif |
1434 | |
1809 | |
1435 | void inline_size |
1810 | inline_size void |
1436 | loop_fork (EV_P) |
1811 | loop_fork (EV_P) |
1437 | { |
1812 | { |
1438 | #if EV_USE_PORT |
1813 | #if EV_USE_PORT |
1439 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1814 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1440 | #endif |
1815 | #endif |
… | |
… | |
1446 | #endif |
1821 | #endif |
1447 | #if EV_USE_INOTIFY |
1822 | #if EV_USE_INOTIFY |
1448 | infy_fork (EV_A); |
1823 | infy_fork (EV_A); |
1449 | #endif |
1824 | #endif |
1450 | |
1825 | |
1451 | if (ev_is_active (&pipeev)) |
1826 | if (ev_is_active (&pipe_w)) |
1452 | { |
1827 | { |
1453 | /* this "locks" the handlers against writing to the pipe */ |
1828 | /* this "locks" the handlers against writing to the pipe */ |
1454 | /* while we modify the fd vars */ |
1829 | /* while we modify the fd vars */ |
1455 | gotsig = 1; |
1830 | sig_pending = 1; |
1456 | #if EV_ASYNC_ENABLE |
1831 | #if EV_ASYNC_ENABLE |
1457 | gotasync = 1; |
1832 | async_pending = 1; |
1458 | #endif |
1833 | #endif |
1459 | |
1834 | |
1460 | ev_ref (EV_A); |
1835 | ev_ref (EV_A); |
1461 | ev_io_stop (EV_A_ &pipeev); |
1836 | ev_io_stop (EV_A_ &pipe_w); |
1462 | |
1837 | |
1463 | #if EV_USE_EVENTFD |
1838 | #if EV_USE_EVENTFD |
1464 | if (evfd >= 0) |
1839 | if (evfd >= 0) |
1465 | close (evfd); |
1840 | close (evfd); |
1466 | #endif |
1841 | #endif |
1467 | |
1842 | |
1468 | if (evpipe [0] >= 0) |
1843 | if (evpipe [0] >= 0) |
1469 | { |
1844 | { |
1470 | close (evpipe [0]); |
1845 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1471 | close (evpipe [1]); |
1846 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1472 | } |
1847 | } |
1473 | |
1848 | |
|
|
1849 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1474 | evpipe_init (EV_A); |
1850 | evpipe_init (EV_A); |
1475 | /* now iterate over everything, in case we missed something */ |
1851 | /* now iterate over everything, in case we missed something */ |
1476 | pipecb (EV_A_ &pipeev, EV_READ); |
1852 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1853 | #endif |
1477 | } |
1854 | } |
1478 | |
1855 | |
1479 | postfork = 0; |
1856 | postfork = 0; |
1480 | } |
1857 | } |
1481 | |
1858 | |
1482 | #if EV_MULTIPLICITY |
1859 | #if EV_MULTIPLICITY |
|
|
1860 | |
1483 | struct ev_loop * |
1861 | struct ev_loop * |
1484 | ev_loop_new (unsigned int flags) |
1862 | ev_loop_new (unsigned int flags) |
1485 | { |
1863 | { |
1486 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1864 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1487 | |
1865 | |
1488 | memset (loop, 0, sizeof (struct ev_loop)); |
1866 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1489 | |
|
|
1490 | loop_init (EV_A_ flags); |
1867 | loop_init (EV_A_ flags); |
1491 | |
1868 | |
1492 | if (ev_backend (EV_A)) |
1869 | if (ev_backend (EV_A)) |
1493 | return loop; |
1870 | return EV_A; |
1494 | |
1871 | |
1495 | return 0; |
1872 | return 0; |
1496 | } |
1873 | } |
1497 | |
1874 | |
1498 | void |
1875 | void |
… | |
… | |
1505 | void |
1882 | void |
1506 | ev_loop_fork (EV_P) |
1883 | ev_loop_fork (EV_P) |
1507 | { |
1884 | { |
1508 | postfork = 1; /* must be in line with ev_default_fork */ |
1885 | postfork = 1; /* must be in line with ev_default_fork */ |
1509 | } |
1886 | } |
|
|
1887 | #endif /* multiplicity */ |
1510 | |
1888 | |
1511 | #if EV_VERIFY |
1889 | #if EV_VERIFY |
1512 | static void |
1890 | static void noinline |
|
|
1891 | verify_watcher (EV_P_ W w) |
|
|
1892 | { |
|
|
1893 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1894 | |
|
|
1895 | if (w->pending) |
|
|
1896 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | static void noinline |
|
|
1900 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1901 | { |
|
|
1902 | int i; |
|
|
1903 | |
|
|
1904 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1905 | { |
|
|
1906 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1907 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1908 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1909 | |
|
|
1910 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1911 | } |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | static void noinline |
1513 | array_check (W **ws, int cnt) |
1915 | array_verify (EV_P_ W *ws, int cnt) |
1514 | { |
1916 | { |
1515 | while (cnt--) |
1917 | while (cnt--) |
|
|
1918 | { |
1516 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1919 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1920 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1921 | } |
1517 | } |
1922 | } |
|
|
1923 | #endif |
1518 | |
1924 | |
1519 | static void |
1925 | #if EV_FEATURE_API |
|
|
1926 | void |
1520 | ev_loop_verify (EV_P) |
1927 | ev_verify (EV_P) |
1521 | { |
1928 | { |
|
|
1929 | #if EV_VERIFY |
1522 | int i; |
1930 | int i; |
|
|
1931 | WL w; |
1523 | |
1932 | |
|
|
1933 | assert (activecnt >= -1); |
|
|
1934 | |
|
|
1935 | assert (fdchangemax >= fdchangecnt); |
|
|
1936 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1937 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1938 | |
|
|
1939 | assert (anfdmax >= 0); |
|
|
1940 | for (i = 0; i < anfdmax; ++i) |
|
|
1941 | for (w = anfds [i].head; w; w = w->next) |
|
|
1942 | { |
|
|
1943 | verify_watcher (EV_A_ (W)w); |
|
|
1944 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1945 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | assert (timermax >= timercnt); |
1524 | checkheap (timers, timercnt); |
1949 | verify_heap (EV_A_ timers, timercnt); |
|
|
1950 | |
1525 | #if EV_PERIODIC_ENABLE |
1951 | #if EV_PERIODIC_ENABLE |
|
|
1952 | assert (periodicmax >= periodiccnt); |
1526 | checkheap (periodics, periodiccnt); |
1953 | verify_heap (EV_A_ periodics, periodiccnt); |
1527 | #endif |
1954 | #endif |
1528 | |
1955 | |
|
|
1956 | for (i = NUMPRI; i--; ) |
|
|
1957 | { |
|
|
1958 | assert (pendingmax [i] >= pendingcnt [i]); |
1529 | #if EV_IDLE_ENABLE |
1959 | #if EV_IDLE_ENABLE |
1530 | for (i = NUMPRI; i--; ) |
1960 | assert (idleall >= 0); |
|
|
1961 | assert (idlemax [i] >= idlecnt [i]); |
1531 | array_check ((W **)idles [i], idlecnt [i]); |
1962 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
1532 | #endif |
1963 | #endif |
|
|
1964 | } |
|
|
1965 | |
1533 | #if EV_FORK_ENABLE |
1966 | #if EV_FORK_ENABLE |
|
|
1967 | assert (forkmax >= forkcnt); |
1534 | array_check ((W **)forks, forkcnt); |
1968 | array_verify (EV_A_ (W *)forks, forkcnt); |
1535 | #endif |
1969 | #endif |
1536 | array_check ((W **)prepares, preparecnt); |
1970 | |
1537 | array_check ((W **)checks, checkcnt); |
|
|
1538 | #if EV_ASYNC_ENABLE |
1971 | #if EV_ASYNC_ENABLE |
|
|
1972 | assert (asyncmax >= asynccnt); |
1539 | array_check ((W **)asyncs, asynccnt); |
1973 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1974 | #endif |
|
|
1975 | |
|
|
1976 | #if EV_PREPARE_ENABLE |
|
|
1977 | assert (preparemax >= preparecnt); |
|
|
1978 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1979 | #endif |
|
|
1980 | |
|
|
1981 | #if EV_CHECK_ENABLE |
|
|
1982 | assert (checkmax >= checkcnt); |
|
|
1983 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1984 | #endif |
|
|
1985 | |
|
|
1986 | # if 0 |
|
|
1987 | #if EV_CHILD_ENABLE |
|
|
1988 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1989 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1990 | #endif |
1540 | #endif |
1991 | # endif |
1541 | } |
|
|
1542 | #endif |
1992 | #endif |
1543 | |
1993 | } |
1544 | #endif |
1994 | #endif |
1545 | |
1995 | |
1546 | #if EV_MULTIPLICITY |
1996 | #if EV_MULTIPLICITY |
1547 | struct ev_loop * |
1997 | struct ev_loop * |
1548 | ev_default_loop_init (unsigned int flags) |
1998 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1552 | #endif |
2002 | #endif |
1553 | { |
2003 | { |
1554 | if (!ev_default_loop_ptr) |
2004 | if (!ev_default_loop_ptr) |
1555 | { |
2005 | { |
1556 | #if EV_MULTIPLICITY |
2006 | #if EV_MULTIPLICITY |
1557 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2007 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1558 | #else |
2008 | #else |
1559 | ev_default_loop_ptr = 1; |
2009 | ev_default_loop_ptr = 1; |
1560 | #endif |
2010 | #endif |
1561 | |
2011 | |
1562 | loop_init (EV_A_ flags); |
2012 | loop_init (EV_A_ flags); |
1563 | |
2013 | |
1564 | if (ev_backend (EV_A)) |
2014 | if (ev_backend (EV_A)) |
1565 | { |
2015 | { |
1566 | #ifndef _WIN32 |
2016 | #if EV_CHILD_ENABLE |
1567 | ev_signal_init (&childev, childcb, SIGCHLD); |
2017 | ev_signal_init (&childev, childcb, SIGCHLD); |
1568 | ev_set_priority (&childev, EV_MAXPRI); |
2018 | ev_set_priority (&childev, EV_MAXPRI); |
1569 | ev_signal_start (EV_A_ &childev); |
2019 | ev_signal_start (EV_A_ &childev); |
1570 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2020 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1571 | #endif |
2021 | #endif |
… | |
… | |
1579 | |
2029 | |
1580 | void |
2030 | void |
1581 | ev_default_destroy (void) |
2031 | ev_default_destroy (void) |
1582 | { |
2032 | { |
1583 | #if EV_MULTIPLICITY |
2033 | #if EV_MULTIPLICITY |
1584 | struct ev_loop *loop = ev_default_loop_ptr; |
2034 | EV_P = ev_default_loop_ptr; |
1585 | #endif |
2035 | #endif |
1586 | |
2036 | |
1587 | #ifndef _WIN32 |
2037 | ev_default_loop_ptr = 0; |
|
|
2038 | |
|
|
2039 | #if EV_CHILD_ENABLE |
1588 | ev_ref (EV_A); /* child watcher */ |
2040 | ev_ref (EV_A); /* child watcher */ |
1589 | ev_signal_stop (EV_A_ &childev); |
2041 | ev_signal_stop (EV_A_ &childev); |
1590 | #endif |
2042 | #endif |
1591 | |
2043 | |
1592 | loop_destroy (EV_A); |
2044 | loop_destroy (EV_A); |
… | |
… | |
1594 | |
2046 | |
1595 | void |
2047 | void |
1596 | ev_default_fork (void) |
2048 | ev_default_fork (void) |
1597 | { |
2049 | { |
1598 | #if EV_MULTIPLICITY |
2050 | #if EV_MULTIPLICITY |
1599 | struct ev_loop *loop = ev_default_loop_ptr; |
2051 | EV_P = ev_default_loop_ptr; |
1600 | #endif |
2052 | #endif |
1601 | |
2053 | |
1602 | if (backend) |
|
|
1603 | postfork = 1; /* must be in line with ev_loop_fork */ |
2054 | postfork = 1; /* must be in line with ev_loop_fork */ |
1604 | } |
2055 | } |
1605 | |
2056 | |
1606 | /*****************************************************************************/ |
2057 | /*****************************************************************************/ |
1607 | |
2058 | |
1608 | void |
2059 | void |
1609 | ev_invoke (EV_P_ void *w, int revents) |
2060 | ev_invoke (EV_P_ void *w, int revents) |
1610 | { |
2061 | { |
1611 | EV_CB_INVOKE ((W)w, revents); |
2062 | EV_CB_INVOKE ((W)w, revents); |
1612 | } |
2063 | } |
1613 | |
2064 | |
1614 | void inline_speed |
2065 | unsigned int |
1615 | call_pending (EV_P) |
2066 | ev_pending_count (EV_P) |
1616 | { |
2067 | { |
1617 | int pri; |
2068 | int pri; |
|
|
2069 | unsigned int count = 0; |
1618 | |
2070 | |
1619 | EV_FREQUENT_CHECK; |
2071 | for (pri = NUMPRI; pri--; ) |
|
|
2072 | count += pendingcnt [pri]; |
|
|
2073 | |
|
|
2074 | return count; |
|
|
2075 | } |
|
|
2076 | |
|
|
2077 | void noinline |
|
|
2078 | ev_invoke_pending (EV_P) |
|
|
2079 | { |
|
|
2080 | int pri; |
1620 | |
2081 | |
1621 | for (pri = NUMPRI; pri--; ) |
2082 | for (pri = NUMPRI; pri--; ) |
1622 | while (pendingcnt [pri]) |
2083 | while (pendingcnt [pri]) |
1623 | { |
2084 | { |
1624 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2085 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1625 | |
2086 | |
1626 | if (expect_true (p->w)) |
|
|
1627 | { |
|
|
1628 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2087 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2088 | /* ^ this is no longer true, as pending_w could be here */ |
1629 | |
2089 | |
1630 | p->w->pending = 0; |
2090 | p->w->pending = 0; |
1631 | EV_CB_INVOKE (p->w, p->events); |
2091 | EV_CB_INVOKE (p->w, p->events); |
1632 | } |
2092 | EV_FREQUENT_CHECK; |
1633 | } |
2093 | } |
1634 | |
|
|
1635 | EV_FREQUENT_CHECK; |
|
|
1636 | } |
2094 | } |
1637 | |
2095 | |
1638 | #if EV_IDLE_ENABLE |
2096 | #if EV_IDLE_ENABLE |
1639 | void inline_size |
2097 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2098 | /* only when higher priorities are idle" logic */ |
|
|
2099 | inline_size void |
1640 | idle_reify (EV_P) |
2100 | idle_reify (EV_P) |
1641 | { |
2101 | { |
1642 | if (expect_false (idleall)) |
2102 | if (expect_false (idleall)) |
1643 | { |
2103 | { |
1644 | int pri; |
2104 | int pri; |
… | |
… | |
1656 | } |
2116 | } |
1657 | } |
2117 | } |
1658 | } |
2118 | } |
1659 | #endif |
2119 | #endif |
1660 | |
2120 | |
1661 | void inline_size |
2121 | /* make timers pending */ |
|
|
2122 | inline_size void |
1662 | timers_reify (EV_P) |
2123 | timers_reify (EV_P) |
1663 | { |
2124 | { |
1664 | EV_FREQUENT_CHECK; |
2125 | EV_FREQUENT_CHECK; |
1665 | |
2126 | |
1666 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2127 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1667 | { |
2128 | { |
1668 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2129 | do |
1669 | |
|
|
1670 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1671 | |
|
|
1672 | /* first reschedule or stop timer */ |
|
|
1673 | if (w->repeat) |
|
|
1674 | { |
2130 | { |
|
|
2131 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2132 | |
|
|
2133 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2134 | |
|
|
2135 | /* first reschedule or stop timer */ |
|
|
2136 | if (w->repeat) |
|
|
2137 | { |
1675 | ev_at (w) += w->repeat; |
2138 | ev_at (w) += w->repeat; |
1676 | if (ev_at (w) < mn_now) |
2139 | if (ev_at (w) < mn_now) |
1677 | ev_at (w) = mn_now; |
2140 | ev_at (w) = mn_now; |
1678 | |
2141 | |
1679 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2142 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1680 | |
2143 | |
1681 | ANHE_at_cache (timers [HEAP0]); |
2144 | ANHE_at_cache (timers [HEAP0]); |
1682 | downheap (timers, timercnt, HEAP0); |
2145 | downheap (timers, timercnt, HEAP0); |
|
|
2146 | } |
|
|
2147 | else |
|
|
2148 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2149 | |
|
|
2150 | EV_FREQUENT_CHECK; |
|
|
2151 | feed_reverse (EV_A_ (W)w); |
1683 | } |
2152 | } |
1684 | else |
2153 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1685 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1686 | |
2154 | |
1687 | EV_FREQUENT_CHECK; |
2155 | feed_reverse_done (EV_A_ EV_TIMER); |
1688 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1689 | } |
2156 | } |
1690 | } |
2157 | } |
1691 | |
2158 | |
1692 | #if EV_PERIODIC_ENABLE |
2159 | #if EV_PERIODIC_ENABLE |
1693 | void inline_size |
2160 | /* make periodics pending */ |
|
|
2161 | inline_size void |
1694 | periodics_reify (EV_P) |
2162 | periodics_reify (EV_P) |
1695 | { |
2163 | { |
1696 | EV_FREQUENT_CHECK; |
2164 | EV_FREQUENT_CHECK; |
|
|
2165 | |
1697 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2166 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1698 | { |
2167 | { |
1699 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2168 | int feed_count = 0; |
1700 | |
2169 | |
1701 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2170 | do |
1702 | |
|
|
1703 | /* first reschedule or stop timer */ |
|
|
1704 | if (w->reschedule_cb) |
|
|
1705 | { |
2171 | { |
|
|
2172 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2173 | |
|
|
2174 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2175 | |
|
|
2176 | /* first reschedule or stop timer */ |
|
|
2177 | if (w->reschedule_cb) |
|
|
2178 | { |
1706 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2179 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | |
2180 | |
1708 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2181 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1709 | |
2182 | |
1710 | ANHE_at_cache (periodics [HEAP0]); |
2183 | ANHE_at_cache (periodics [HEAP0]); |
1711 | downheap (periodics, periodiccnt, HEAP0); |
2184 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2185 | } |
|
|
2186 | else if (w->interval) |
|
|
2187 | { |
|
|
2188 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2189 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2190 | /* this might happen because of floating point inexactness */ |
|
|
2191 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2192 | { |
|
|
2193 | ev_at (w) += w->interval; |
|
|
2194 | |
|
|
2195 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2196 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2197 | /* has effectively asked to get triggered more often than possible */ |
|
|
2198 | if (ev_at (w) < ev_rt_now) |
|
|
2199 | ev_at (w) = ev_rt_now; |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2203 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2204 | } |
|
|
2205 | else |
|
|
2206 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2207 | |
1712 | EV_FREQUENT_CHECK; |
2208 | EV_FREQUENT_CHECK; |
|
|
2209 | feed_reverse (EV_A_ (W)w); |
1713 | } |
2210 | } |
1714 | else if (w->interval) |
2211 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1715 | { |
|
|
1716 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1717 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1718 | /* this might happen because of floating point inexactness */ |
|
|
1719 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1720 | { |
|
|
1721 | ev_at (w) += w->interval; |
|
|
1722 | |
2212 | |
1723 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1724 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1725 | /* has effectively asked to get triggered more often than possible */ |
|
|
1726 | if (ev_at (w) < ev_rt_now) |
|
|
1727 | ev_at (w) = ev_rt_now; |
|
|
1728 | } |
|
|
1729 | |
|
|
1730 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1731 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1732 | } |
|
|
1733 | else |
|
|
1734 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1735 | |
|
|
1736 | EV_FREQUENT_CHECK; |
|
|
1737 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2213 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1738 | } |
2214 | } |
1739 | } |
2215 | } |
1740 | |
2216 | |
|
|
2217 | /* simply recalculate all periodics */ |
|
|
2218 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1741 | static void noinline |
2219 | static void noinline |
1742 | periodics_reschedule (EV_P) |
2220 | periodics_reschedule (EV_P) |
1743 | { |
2221 | { |
1744 | int i; |
2222 | int i; |
1745 | |
2223 | |
… | |
… | |
1758 | |
2236 | |
1759 | reheap (periodics, periodiccnt); |
2237 | reheap (periodics, periodiccnt); |
1760 | } |
2238 | } |
1761 | #endif |
2239 | #endif |
1762 | |
2240 | |
1763 | void inline_speed |
2241 | /* adjust all timers by a given offset */ |
|
|
2242 | static void noinline |
|
|
2243 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2244 | { |
|
|
2245 | int i; |
|
|
2246 | |
|
|
2247 | for (i = 0; i < timercnt; ++i) |
|
|
2248 | { |
|
|
2249 | ANHE *he = timers + i + HEAP0; |
|
|
2250 | ANHE_w (*he)->at += adjust; |
|
|
2251 | ANHE_at_cache (*he); |
|
|
2252 | } |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2256 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2257 | inline_speed void |
1764 | time_update (EV_P_ ev_tstamp max_block) |
2258 | time_update (EV_P_ ev_tstamp max_block) |
1765 | { |
2259 | { |
1766 | int i; |
|
|
1767 | |
|
|
1768 | #if EV_USE_MONOTONIC |
2260 | #if EV_USE_MONOTONIC |
1769 | if (expect_true (have_monotonic)) |
2261 | if (expect_true (have_monotonic)) |
1770 | { |
2262 | { |
|
|
2263 | int i; |
1771 | ev_tstamp odiff = rtmn_diff; |
2264 | ev_tstamp odiff = rtmn_diff; |
1772 | |
2265 | |
1773 | mn_now = get_clock (); |
2266 | mn_now = get_clock (); |
1774 | |
2267 | |
1775 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2268 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1801 | ev_rt_now = ev_time (); |
2294 | ev_rt_now = ev_time (); |
1802 | mn_now = get_clock (); |
2295 | mn_now = get_clock (); |
1803 | now_floor = mn_now; |
2296 | now_floor = mn_now; |
1804 | } |
2297 | } |
1805 | |
2298 | |
|
|
2299 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2300 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1806 | # if EV_PERIODIC_ENABLE |
2301 | # if EV_PERIODIC_ENABLE |
1807 | periodics_reschedule (EV_A); |
2302 | periodics_reschedule (EV_A); |
1808 | # endif |
2303 | # endif |
1809 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1810 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1811 | } |
2304 | } |
1812 | else |
2305 | else |
1813 | #endif |
2306 | #endif |
1814 | { |
2307 | { |
1815 | ev_rt_now = ev_time (); |
2308 | ev_rt_now = ev_time (); |
1816 | |
2309 | |
1817 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2310 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1818 | { |
2311 | { |
|
|
2312 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2313 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1819 | #if EV_PERIODIC_ENABLE |
2314 | #if EV_PERIODIC_ENABLE |
1820 | periodics_reschedule (EV_A); |
2315 | periodics_reschedule (EV_A); |
1821 | #endif |
2316 | #endif |
1822 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1823 | for (i = 0; i < timercnt; ++i) |
|
|
1824 | { |
|
|
1825 | ANHE *he = timers + i + HEAP0; |
|
|
1826 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1827 | ANHE_at_cache (*he); |
|
|
1828 | } |
|
|
1829 | } |
2317 | } |
1830 | |
2318 | |
1831 | mn_now = ev_rt_now; |
2319 | mn_now = ev_rt_now; |
1832 | } |
2320 | } |
1833 | } |
2321 | } |
1834 | |
2322 | |
1835 | void |
2323 | void |
1836 | ev_ref (EV_P) |
|
|
1837 | { |
|
|
1838 | ++activecnt; |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | void |
|
|
1842 | ev_unref (EV_P) |
|
|
1843 | { |
|
|
1844 | --activecnt; |
|
|
1845 | } |
|
|
1846 | |
|
|
1847 | static int loop_done; |
|
|
1848 | |
|
|
1849 | void |
|
|
1850 | ev_loop (EV_P_ int flags) |
2324 | ev_run (EV_P_ int flags) |
1851 | { |
2325 | { |
|
|
2326 | #if EV_FEATURE_API |
|
|
2327 | ++loop_depth; |
|
|
2328 | #endif |
|
|
2329 | |
|
|
2330 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2331 | |
1852 | loop_done = EVUNLOOP_CANCEL; |
2332 | loop_done = EVBREAK_CANCEL; |
1853 | |
2333 | |
1854 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2334 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1855 | |
2335 | |
1856 | do |
2336 | do |
1857 | { |
2337 | { |
|
|
2338 | #if EV_VERIFY >= 2 |
|
|
2339 | ev_verify (EV_A); |
|
|
2340 | #endif |
|
|
2341 | |
1858 | #ifndef _WIN32 |
2342 | #ifndef _WIN32 |
1859 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2343 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1860 | if (expect_false (getpid () != curpid)) |
2344 | if (expect_false (getpid () != curpid)) |
1861 | { |
2345 | { |
1862 | curpid = getpid (); |
2346 | curpid = getpid (); |
… | |
… | |
1868 | /* we might have forked, so queue fork handlers */ |
2352 | /* we might have forked, so queue fork handlers */ |
1869 | if (expect_false (postfork)) |
2353 | if (expect_false (postfork)) |
1870 | if (forkcnt) |
2354 | if (forkcnt) |
1871 | { |
2355 | { |
1872 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2356 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1873 | call_pending (EV_A); |
2357 | EV_INVOKE_PENDING; |
1874 | } |
2358 | } |
1875 | #endif |
2359 | #endif |
1876 | |
2360 | |
|
|
2361 | #if EV_PREPARE_ENABLE |
1877 | /* queue prepare watchers (and execute them) */ |
2362 | /* queue prepare watchers (and execute them) */ |
1878 | if (expect_false (preparecnt)) |
2363 | if (expect_false (preparecnt)) |
1879 | { |
2364 | { |
1880 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2365 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1881 | call_pending (EV_A); |
2366 | EV_INVOKE_PENDING; |
1882 | } |
2367 | } |
|
|
2368 | #endif |
1883 | |
2369 | |
1884 | if (expect_false (!activecnt)) |
2370 | if (expect_false (loop_done)) |
1885 | break; |
2371 | break; |
1886 | |
2372 | |
1887 | /* we might have forked, so reify kernel state if necessary */ |
2373 | /* we might have forked, so reify kernel state if necessary */ |
1888 | if (expect_false (postfork)) |
2374 | if (expect_false (postfork)) |
1889 | loop_fork (EV_A); |
2375 | loop_fork (EV_A); |
… | |
… | |
1894 | /* calculate blocking time */ |
2380 | /* calculate blocking time */ |
1895 | { |
2381 | { |
1896 | ev_tstamp waittime = 0.; |
2382 | ev_tstamp waittime = 0.; |
1897 | ev_tstamp sleeptime = 0.; |
2383 | ev_tstamp sleeptime = 0.; |
1898 | |
2384 | |
|
|
2385 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2386 | ev_tstamp prev_mn_now = mn_now; |
|
|
2387 | |
|
|
2388 | /* update time to cancel out callback processing overhead */ |
|
|
2389 | time_update (EV_A_ 1e100); |
|
|
2390 | |
1899 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2391 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1900 | { |
2392 | { |
1901 | /* update time to cancel out callback processing overhead */ |
|
|
1902 | time_update (EV_A_ 1e100); |
|
|
1903 | |
|
|
1904 | waittime = MAX_BLOCKTIME; |
2393 | waittime = MAX_BLOCKTIME; |
1905 | |
2394 | |
1906 | if (timercnt) |
2395 | if (timercnt) |
1907 | { |
2396 | { |
1908 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2397 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
1915 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2404 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1916 | if (waittime > to) waittime = to; |
2405 | if (waittime > to) waittime = to; |
1917 | } |
2406 | } |
1918 | #endif |
2407 | #endif |
1919 | |
2408 | |
|
|
2409 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1920 | if (expect_false (waittime < timeout_blocktime)) |
2410 | if (expect_false (waittime < timeout_blocktime)) |
1921 | waittime = timeout_blocktime; |
2411 | waittime = timeout_blocktime; |
1922 | |
2412 | |
1923 | sleeptime = waittime - backend_fudge; |
2413 | /* extra check because io_blocktime is commonly 0 */ |
1924 | |
|
|
1925 | if (expect_true (sleeptime > io_blocktime)) |
2414 | if (expect_false (io_blocktime)) |
1926 | sleeptime = io_blocktime; |
|
|
1927 | |
|
|
1928 | if (sleeptime) |
|
|
1929 | { |
2415 | { |
|
|
2416 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2417 | |
|
|
2418 | if (sleeptime > waittime - backend_fudge) |
|
|
2419 | sleeptime = waittime - backend_fudge; |
|
|
2420 | |
|
|
2421 | if (expect_true (sleeptime > 0.)) |
|
|
2422 | { |
1930 | ev_sleep (sleeptime); |
2423 | ev_sleep (sleeptime); |
1931 | waittime -= sleeptime; |
2424 | waittime -= sleeptime; |
|
|
2425 | } |
1932 | } |
2426 | } |
1933 | } |
2427 | } |
1934 | |
2428 | |
|
|
2429 | #if EV_FEATURE_API |
1935 | ++loop_count; |
2430 | ++loop_count; |
|
|
2431 | #endif |
|
|
2432 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1936 | backend_poll (EV_A_ waittime); |
2433 | backend_poll (EV_A_ waittime); |
|
|
2434 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
1937 | |
2435 | |
1938 | /* update ev_rt_now, do magic */ |
2436 | /* update ev_rt_now, do magic */ |
1939 | time_update (EV_A_ waittime + sleeptime); |
2437 | time_update (EV_A_ waittime + sleeptime); |
1940 | } |
2438 | } |
1941 | |
2439 | |
… | |
… | |
1948 | #if EV_IDLE_ENABLE |
2446 | #if EV_IDLE_ENABLE |
1949 | /* queue idle watchers unless other events are pending */ |
2447 | /* queue idle watchers unless other events are pending */ |
1950 | idle_reify (EV_A); |
2448 | idle_reify (EV_A); |
1951 | #endif |
2449 | #endif |
1952 | |
2450 | |
|
|
2451 | #if EV_CHECK_ENABLE |
1953 | /* queue check watchers, to be executed first */ |
2452 | /* queue check watchers, to be executed first */ |
1954 | if (expect_false (checkcnt)) |
2453 | if (expect_false (checkcnt)) |
1955 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2454 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2455 | #endif |
1956 | |
2456 | |
1957 | call_pending (EV_A); |
2457 | EV_INVOKE_PENDING; |
1958 | } |
2458 | } |
1959 | while (expect_true ( |
2459 | while (expect_true ( |
1960 | activecnt |
2460 | activecnt |
1961 | && !loop_done |
2461 | && !loop_done |
1962 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2462 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1963 | )); |
2463 | )); |
1964 | |
2464 | |
1965 | if (loop_done == EVUNLOOP_ONE) |
2465 | if (loop_done == EVBREAK_ONE) |
1966 | loop_done = EVUNLOOP_CANCEL; |
2466 | loop_done = EVBREAK_CANCEL; |
1967 | } |
|
|
1968 | |
2467 | |
|
|
2468 | #if EV_FEATURE_API |
|
|
2469 | --loop_depth; |
|
|
2470 | #endif |
|
|
2471 | } |
|
|
2472 | |
1969 | void |
2473 | void |
1970 | ev_unloop (EV_P_ int how) |
2474 | ev_break (EV_P_ int how) |
1971 | { |
2475 | { |
1972 | loop_done = how; |
2476 | loop_done = how; |
1973 | } |
2477 | } |
1974 | |
2478 | |
|
|
2479 | void |
|
|
2480 | ev_ref (EV_P) |
|
|
2481 | { |
|
|
2482 | ++activecnt; |
|
|
2483 | } |
|
|
2484 | |
|
|
2485 | void |
|
|
2486 | ev_unref (EV_P) |
|
|
2487 | { |
|
|
2488 | --activecnt; |
|
|
2489 | } |
|
|
2490 | |
|
|
2491 | void |
|
|
2492 | ev_now_update (EV_P) |
|
|
2493 | { |
|
|
2494 | time_update (EV_A_ 1e100); |
|
|
2495 | } |
|
|
2496 | |
|
|
2497 | void |
|
|
2498 | ev_suspend (EV_P) |
|
|
2499 | { |
|
|
2500 | ev_now_update (EV_A); |
|
|
2501 | } |
|
|
2502 | |
|
|
2503 | void |
|
|
2504 | ev_resume (EV_P) |
|
|
2505 | { |
|
|
2506 | ev_tstamp mn_prev = mn_now; |
|
|
2507 | |
|
|
2508 | ev_now_update (EV_A); |
|
|
2509 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2510 | #if EV_PERIODIC_ENABLE |
|
|
2511 | /* TODO: really do this? */ |
|
|
2512 | periodics_reschedule (EV_A); |
|
|
2513 | #endif |
|
|
2514 | } |
|
|
2515 | |
1975 | /*****************************************************************************/ |
2516 | /*****************************************************************************/ |
|
|
2517 | /* singly-linked list management, used when the expected list length is short */ |
1976 | |
2518 | |
1977 | void inline_size |
2519 | inline_size void |
1978 | wlist_add (WL *head, WL elem) |
2520 | wlist_add (WL *head, WL elem) |
1979 | { |
2521 | { |
1980 | elem->next = *head; |
2522 | elem->next = *head; |
1981 | *head = elem; |
2523 | *head = elem; |
1982 | } |
2524 | } |
1983 | |
2525 | |
1984 | void inline_size |
2526 | inline_size void |
1985 | wlist_del (WL *head, WL elem) |
2527 | wlist_del (WL *head, WL elem) |
1986 | { |
2528 | { |
1987 | while (*head) |
2529 | while (*head) |
1988 | { |
2530 | { |
1989 | if (*head == elem) |
2531 | if (expect_true (*head == elem)) |
1990 | { |
2532 | { |
1991 | *head = elem->next; |
2533 | *head = elem->next; |
1992 | return; |
2534 | break; |
1993 | } |
2535 | } |
1994 | |
2536 | |
1995 | head = &(*head)->next; |
2537 | head = &(*head)->next; |
1996 | } |
2538 | } |
1997 | } |
2539 | } |
1998 | |
2540 | |
1999 | void inline_speed |
2541 | /* internal, faster, version of ev_clear_pending */ |
|
|
2542 | inline_speed void |
2000 | clear_pending (EV_P_ W w) |
2543 | clear_pending (EV_P_ W w) |
2001 | { |
2544 | { |
2002 | if (w->pending) |
2545 | if (w->pending) |
2003 | { |
2546 | { |
2004 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2547 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2005 | w->pending = 0; |
2548 | w->pending = 0; |
2006 | } |
2549 | } |
2007 | } |
2550 | } |
2008 | |
2551 | |
2009 | int |
2552 | int |
… | |
… | |
2013 | int pending = w_->pending; |
2556 | int pending = w_->pending; |
2014 | |
2557 | |
2015 | if (expect_true (pending)) |
2558 | if (expect_true (pending)) |
2016 | { |
2559 | { |
2017 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2560 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2561 | p->w = (W)&pending_w; |
2018 | w_->pending = 0; |
2562 | w_->pending = 0; |
2019 | p->w = 0; |
|
|
2020 | return p->events; |
2563 | return p->events; |
2021 | } |
2564 | } |
2022 | else |
2565 | else |
2023 | return 0; |
2566 | return 0; |
2024 | } |
2567 | } |
2025 | |
2568 | |
2026 | void inline_size |
2569 | inline_size void |
2027 | pri_adjust (EV_P_ W w) |
2570 | pri_adjust (EV_P_ W w) |
2028 | { |
2571 | { |
2029 | int pri = w->priority; |
2572 | int pri = ev_priority (w); |
2030 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2573 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2031 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2574 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2032 | w->priority = pri; |
2575 | ev_set_priority (w, pri); |
2033 | } |
2576 | } |
2034 | |
2577 | |
2035 | void inline_speed |
2578 | inline_speed void |
2036 | ev_start (EV_P_ W w, int active) |
2579 | ev_start (EV_P_ W w, int active) |
2037 | { |
2580 | { |
2038 | pri_adjust (EV_A_ w); |
2581 | pri_adjust (EV_A_ w); |
2039 | w->active = active; |
2582 | w->active = active; |
2040 | ev_ref (EV_A); |
2583 | ev_ref (EV_A); |
2041 | } |
2584 | } |
2042 | |
2585 | |
2043 | void inline_size |
2586 | inline_size void |
2044 | ev_stop (EV_P_ W w) |
2587 | ev_stop (EV_P_ W w) |
2045 | { |
2588 | { |
2046 | ev_unref (EV_A); |
2589 | ev_unref (EV_A); |
2047 | w->active = 0; |
2590 | w->active = 0; |
2048 | } |
2591 | } |
… | |
… | |
2055 | int fd = w->fd; |
2598 | int fd = w->fd; |
2056 | |
2599 | |
2057 | if (expect_false (ev_is_active (w))) |
2600 | if (expect_false (ev_is_active (w))) |
2058 | return; |
2601 | return; |
2059 | |
2602 | |
2060 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2603 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2604 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2061 | |
2605 | |
2062 | EV_FREQUENT_CHECK; |
2606 | EV_FREQUENT_CHECK; |
2063 | |
2607 | |
2064 | ev_start (EV_A_ (W)w, 1); |
2608 | ev_start (EV_A_ (W)w, 1); |
2065 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2609 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2066 | wlist_add (&anfds[fd].head, (WL)w); |
2610 | wlist_add (&anfds[fd].head, (WL)w); |
2067 | |
2611 | |
2068 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2612 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2069 | w->events &= ~EV_IOFDSET; |
2613 | w->events &= ~EV__IOFDSET; |
2070 | |
2614 | |
2071 | EV_FREQUENT_CHECK; |
2615 | EV_FREQUENT_CHECK; |
2072 | } |
2616 | } |
2073 | |
2617 | |
2074 | void noinline |
2618 | void noinline |
… | |
… | |
2076 | { |
2620 | { |
2077 | clear_pending (EV_A_ (W)w); |
2621 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
2622 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
2623 | return; |
2080 | |
2624 | |
2081 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2625 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2082 | |
2626 | |
2083 | EV_FREQUENT_CHECK; |
2627 | EV_FREQUENT_CHECK; |
2084 | |
2628 | |
2085 | wlist_del (&anfds[w->fd].head, (WL)w); |
2629 | wlist_del (&anfds[w->fd].head, (WL)w); |
2086 | ev_stop (EV_A_ (W)w); |
2630 | ev_stop (EV_A_ (W)w); |
2087 | |
2631 | |
2088 | fd_change (EV_A_ w->fd, 1); |
2632 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2089 | |
2633 | |
2090 | EV_FREQUENT_CHECK; |
2634 | EV_FREQUENT_CHECK; |
2091 | } |
2635 | } |
2092 | |
2636 | |
2093 | void noinline |
2637 | void noinline |
… | |
… | |
2096 | if (expect_false (ev_is_active (w))) |
2640 | if (expect_false (ev_is_active (w))) |
2097 | return; |
2641 | return; |
2098 | |
2642 | |
2099 | ev_at (w) += mn_now; |
2643 | ev_at (w) += mn_now; |
2100 | |
2644 | |
2101 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2645 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2102 | |
2646 | |
2103 | EV_FREQUENT_CHECK; |
2647 | EV_FREQUENT_CHECK; |
2104 | |
2648 | |
2105 | ++timercnt; |
2649 | ++timercnt; |
2106 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2650 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2109 | ANHE_at_cache (timers [ev_active (w)]); |
2653 | ANHE_at_cache (timers [ev_active (w)]); |
2110 | upheap (timers, ev_active (w)); |
2654 | upheap (timers, ev_active (w)); |
2111 | |
2655 | |
2112 | EV_FREQUENT_CHECK; |
2656 | EV_FREQUENT_CHECK; |
2113 | |
2657 | |
2114 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2658 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2115 | } |
2659 | } |
2116 | |
2660 | |
2117 | void noinline |
2661 | void noinline |
2118 | ev_timer_stop (EV_P_ ev_timer *w) |
2662 | ev_timer_stop (EV_P_ ev_timer *w) |
2119 | { |
2663 | { |
… | |
… | |
2124 | EV_FREQUENT_CHECK; |
2668 | EV_FREQUENT_CHECK; |
2125 | |
2669 | |
2126 | { |
2670 | { |
2127 | int active = ev_active (w); |
2671 | int active = ev_active (w); |
2128 | |
2672 | |
2129 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2673 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2130 | |
2674 | |
2131 | --timercnt; |
2675 | --timercnt; |
2132 | |
2676 | |
2133 | if (expect_true (active < timercnt + HEAP0)) |
2677 | if (expect_true (active < timercnt + HEAP0)) |
2134 | { |
2678 | { |
2135 | timers [active] = timers [timercnt + HEAP0]; |
2679 | timers [active] = timers [timercnt + HEAP0]; |
2136 | adjustheap (timers, timercnt, active); |
2680 | adjustheap (timers, timercnt, active); |
2137 | } |
2681 | } |
2138 | } |
2682 | } |
2139 | |
2683 | |
2140 | EV_FREQUENT_CHECK; |
|
|
2141 | |
|
|
2142 | ev_at (w) -= mn_now; |
2684 | ev_at (w) -= mn_now; |
2143 | |
2685 | |
2144 | ev_stop (EV_A_ (W)w); |
2686 | ev_stop (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
2145 | } |
2689 | } |
2146 | |
2690 | |
2147 | void noinline |
2691 | void noinline |
2148 | ev_timer_again (EV_P_ ev_timer *w) |
2692 | ev_timer_again (EV_P_ ev_timer *w) |
2149 | { |
2693 | { |
… | |
… | |
2167 | } |
2711 | } |
2168 | |
2712 | |
2169 | EV_FREQUENT_CHECK; |
2713 | EV_FREQUENT_CHECK; |
2170 | } |
2714 | } |
2171 | |
2715 | |
|
|
2716 | ev_tstamp |
|
|
2717 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2718 | { |
|
|
2719 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2720 | } |
|
|
2721 | |
2172 | #if EV_PERIODIC_ENABLE |
2722 | #if EV_PERIODIC_ENABLE |
2173 | void noinline |
2723 | void noinline |
2174 | ev_periodic_start (EV_P_ ev_periodic *w) |
2724 | ev_periodic_start (EV_P_ ev_periodic *w) |
2175 | { |
2725 | { |
2176 | if (expect_false (ev_is_active (w))) |
2726 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2178 | |
2728 | |
2179 | if (w->reschedule_cb) |
2729 | if (w->reschedule_cb) |
2180 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2730 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2181 | else if (w->interval) |
2731 | else if (w->interval) |
2182 | { |
2732 | { |
2183 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2733 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2184 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2734 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2735 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2186 | } |
2736 | } |
2187 | else |
2737 | else |
2188 | ev_at (w) = w->offset; |
2738 | ev_at (w) = w->offset; |
… | |
… | |
2196 | ANHE_at_cache (periodics [ev_active (w)]); |
2746 | ANHE_at_cache (periodics [ev_active (w)]); |
2197 | upheap (periodics, ev_active (w)); |
2747 | upheap (periodics, ev_active (w)); |
2198 | |
2748 | |
2199 | EV_FREQUENT_CHECK; |
2749 | EV_FREQUENT_CHECK; |
2200 | |
2750 | |
2201 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2751 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2202 | } |
2752 | } |
2203 | |
2753 | |
2204 | void noinline |
2754 | void noinline |
2205 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2755 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2206 | { |
2756 | { |
… | |
… | |
2211 | EV_FREQUENT_CHECK; |
2761 | EV_FREQUENT_CHECK; |
2212 | |
2762 | |
2213 | { |
2763 | { |
2214 | int active = ev_active (w); |
2764 | int active = ev_active (w); |
2215 | |
2765 | |
2216 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2766 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2217 | |
2767 | |
2218 | --periodiccnt; |
2768 | --periodiccnt; |
2219 | |
2769 | |
2220 | if (expect_true (active < periodiccnt + HEAP0)) |
2770 | if (expect_true (active < periodiccnt + HEAP0)) |
2221 | { |
2771 | { |
2222 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2772 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2223 | adjustheap (periodics, periodiccnt, active); |
2773 | adjustheap (periodics, periodiccnt, active); |
2224 | } |
2774 | } |
2225 | } |
2775 | } |
2226 | |
2776 | |
2227 | EV_FREQUENT_CHECK; |
|
|
2228 | |
|
|
2229 | ev_stop (EV_A_ (W)w); |
2777 | ev_stop (EV_A_ (W)w); |
|
|
2778 | |
|
|
2779 | EV_FREQUENT_CHECK; |
2230 | } |
2780 | } |
2231 | |
2781 | |
2232 | void noinline |
2782 | void noinline |
2233 | ev_periodic_again (EV_P_ ev_periodic *w) |
2783 | ev_periodic_again (EV_P_ ev_periodic *w) |
2234 | { |
2784 | { |
… | |
… | |
2240 | |
2790 | |
2241 | #ifndef SA_RESTART |
2791 | #ifndef SA_RESTART |
2242 | # define SA_RESTART 0 |
2792 | # define SA_RESTART 0 |
2243 | #endif |
2793 | #endif |
2244 | |
2794 | |
|
|
2795 | #if EV_SIGNAL_ENABLE |
|
|
2796 | |
2245 | void noinline |
2797 | void noinline |
2246 | ev_signal_start (EV_P_ ev_signal *w) |
2798 | ev_signal_start (EV_P_ ev_signal *w) |
2247 | { |
2799 | { |
2248 | #if EV_MULTIPLICITY |
|
|
2249 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2250 | #endif |
|
|
2251 | if (expect_false (ev_is_active (w))) |
2800 | if (expect_false (ev_is_active (w))) |
2252 | return; |
2801 | return; |
2253 | |
2802 | |
2254 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2803 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2255 | |
2804 | |
2256 | evpipe_init (EV_A); |
2805 | #if EV_MULTIPLICITY |
|
|
2806 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2807 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2257 | |
2808 | |
2258 | EV_FREQUENT_CHECK; |
2809 | signals [w->signum - 1].loop = EV_A; |
|
|
2810 | #endif |
2259 | |
2811 | |
|
|
2812 | EV_FREQUENT_CHECK; |
|
|
2813 | |
|
|
2814 | #if EV_USE_SIGNALFD |
|
|
2815 | if (sigfd == -2) |
2260 | { |
2816 | { |
2261 | #ifndef _WIN32 |
2817 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2262 | sigset_t full, prev; |
2818 | if (sigfd < 0 && errno == EINVAL) |
2263 | sigfillset (&full); |
2819 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2264 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2265 | #endif |
|
|
2266 | |
2820 | |
2267 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2821 | if (sigfd >= 0) |
|
|
2822 | { |
|
|
2823 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2268 | |
2824 | |
2269 | #ifndef _WIN32 |
2825 | sigemptyset (&sigfd_set); |
2270 | sigprocmask (SIG_SETMASK, &prev, 0); |
2826 | |
2271 | #endif |
2827 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2828 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2829 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2830 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2831 | } |
2272 | } |
2832 | } |
|
|
2833 | |
|
|
2834 | if (sigfd >= 0) |
|
|
2835 | { |
|
|
2836 | /* TODO: check .head */ |
|
|
2837 | sigaddset (&sigfd_set, w->signum); |
|
|
2838 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2839 | |
|
|
2840 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2841 | } |
|
|
2842 | #endif |
2273 | |
2843 | |
2274 | ev_start (EV_A_ (W)w, 1); |
2844 | ev_start (EV_A_ (W)w, 1); |
2275 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2845 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2276 | |
2846 | |
2277 | if (!((WL)w)->next) |
2847 | if (!((WL)w)->next) |
|
|
2848 | # if EV_USE_SIGNALFD |
|
|
2849 | if (sigfd < 0) /*TODO*/ |
|
|
2850 | # endif |
2278 | { |
2851 | { |
2279 | #if _WIN32 |
2852 | # ifdef _WIN32 |
|
|
2853 | evpipe_init (EV_A); |
|
|
2854 | |
2280 | signal (w->signum, ev_sighandler); |
2855 | signal (w->signum, ev_sighandler); |
2281 | #else |
2856 | # else |
2282 | struct sigaction sa; |
2857 | struct sigaction sa; |
|
|
2858 | |
|
|
2859 | evpipe_init (EV_A); |
|
|
2860 | |
2283 | sa.sa_handler = ev_sighandler; |
2861 | sa.sa_handler = ev_sighandler; |
2284 | sigfillset (&sa.sa_mask); |
2862 | sigfillset (&sa.sa_mask); |
2285 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2863 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2286 | sigaction (w->signum, &sa, 0); |
2864 | sigaction (w->signum, &sa, 0); |
|
|
2865 | |
|
|
2866 | sigemptyset (&sa.sa_mask); |
|
|
2867 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2868 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2287 | #endif |
2869 | #endif |
2288 | } |
2870 | } |
2289 | |
2871 | |
2290 | EV_FREQUENT_CHECK; |
2872 | EV_FREQUENT_CHECK; |
2291 | } |
2873 | } |
2292 | |
2874 | |
2293 | void noinline |
2875 | void noinline |
… | |
… | |
2301 | |
2883 | |
2302 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2884 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2303 | ev_stop (EV_A_ (W)w); |
2885 | ev_stop (EV_A_ (W)w); |
2304 | |
2886 | |
2305 | if (!signals [w->signum - 1].head) |
2887 | if (!signals [w->signum - 1].head) |
|
|
2888 | { |
|
|
2889 | #if EV_MULTIPLICITY |
|
|
2890 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2891 | #endif |
|
|
2892 | #if EV_USE_SIGNALFD |
|
|
2893 | if (sigfd >= 0) |
|
|
2894 | { |
|
|
2895 | sigset_t ss; |
|
|
2896 | |
|
|
2897 | sigemptyset (&ss); |
|
|
2898 | sigaddset (&ss, w->signum); |
|
|
2899 | sigdelset (&sigfd_set, w->signum); |
|
|
2900 | |
|
|
2901 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2902 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2903 | } |
|
|
2904 | else |
|
|
2905 | #endif |
2306 | signal (w->signum, SIG_DFL); |
2906 | signal (w->signum, SIG_DFL); |
|
|
2907 | } |
2307 | |
2908 | |
2308 | EV_FREQUENT_CHECK; |
2909 | EV_FREQUENT_CHECK; |
2309 | } |
2910 | } |
|
|
2911 | |
|
|
2912 | #endif |
|
|
2913 | |
|
|
2914 | #if EV_CHILD_ENABLE |
2310 | |
2915 | |
2311 | void |
2916 | void |
2312 | ev_child_start (EV_P_ ev_child *w) |
2917 | ev_child_start (EV_P_ ev_child *w) |
2313 | { |
2918 | { |
2314 | #if EV_MULTIPLICITY |
2919 | #if EV_MULTIPLICITY |
2315 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2920 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2316 | #endif |
2921 | #endif |
2317 | if (expect_false (ev_is_active (w))) |
2922 | if (expect_false (ev_is_active (w))) |
2318 | return; |
2923 | return; |
2319 | |
2924 | |
2320 | EV_FREQUENT_CHECK; |
2925 | EV_FREQUENT_CHECK; |
2321 | |
2926 | |
2322 | ev_start (EV_A_ (W)w, 1); |
2927 | ev_start (EV_A_ (W)w, 1); |
2323 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2928 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2324 | |
2929 | |
2325 | EV_FREQUENT_CHECK; |
2930 | EV_FREQUENT_CHECK; |
2326 | } |
2931 | } |
2327 | |
2932 | |
2328 | void |
2933 | void |
… | |
… | |
2332 | if (expect_false (!ev_is_active (w))) |
2937 | if (expect_false (!ev_is_active (w))) |
2333 | return; |
2938 | return; |
2334 | |
2939 | |
2335 | EV_FREQUENT_CHECK; |
2940 | EV_FREQUENT_CHECK; |
2336 | |
2941 | |
2337 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2942 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2338 | ev_stop (EV_A_ (W)w); |
2943 | ev_stop (EV_A_ (W)w); |
2339 | |
2944 | |
2340 | EV_FREQUENT_CHECK; |
2945 | EV_FREQUENT_CHECK; |
2341 | } |
2946 | } |
|
|
2947 | |
|
|
2948 | #endif |
2342 | |
2949 | |
2343 | #if EV_STAT_ENABLE |
2950 | #if EV_STAT_ENABLE |
2344 | |
2951 | |
2345 | # ifdef _WIN32 |
2952 | # ifdef _WIN32 |
2346 | # undef lstat |
2953 | # undef lstat |
2347 | # define lstat(a,b) _stati64 (a,b) |
2954 | # define lstat(a,b) _stati64 (a,b) |
2348 | # endif |
2955 | # endif |
2349 | |
2956 | |
2350 | #define DEF_STAT_INTERVAL 5.0074891 |
2957 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2958 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2351 | #define MIN_STAT_INTERVAL 0.1074891 |
2959 | #define MIN_STAT_INTERVAL 0.1074891 |
2352 | |
2960 | |
2353 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2961 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2354 | |
2962 | |
2355 | #if EV_USE_INOTIFY |
2963 | #if EV_USE_INOTIFY |
2356 | # define EV_INOTIFY_BUFSIZE 8192 |
2964 | |
|
|
2965 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2966 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2357 | |
2967 | |
2358 | static void noinline |
2968 | static void noinline |
2359 | infy_add (EV_P_ ev_stat *w) |
2969 | infy_add (EV_P_ ev_stat *w) |
2360 | { |
2970 | { |
2361 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2971 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2362 | |
2972 | |
2363 | if (w->wd < 0) |
2973 | if (w->wd >= 0) |
|
|
2974 | { |
|
|
2975 | struct statfs sfs; |
|
|
2976 | |
|
|
2977 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2978 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2979 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2980 | |
|
|
2981 | if (!fs_2625) |
|
|
2982 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2983 | else if (!statfs (w->path, &sfs) |
|
|
2984 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2985 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2986 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2987 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2988 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2989 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2990 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2991 | else |
|
|
2992 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2364 | { |
2993 | } |
2365 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2994 | else |
|
|
2995 | { |
|
|
2996 | /* can't use inotify, continue to stat */ |
|
|
2997 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2366 | |
2998 | |
2367 | /* monitor some parent directory for speedup hints */ |
2999 | /* if path is not there, monitor some parent directory for speedup hints */ |
2368 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
3000 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2369 | /* but an efficiency issue only */ |
3001 | /* but an efficiency issue only */ |
2370 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3002 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2371 | { |
3003 | { |
2372 | char path [4096]; |
3004 | char path [4096]; |
2373 | strcpy (path, w->path); |
3005 | strcpy (path, w->path); |
… | |
… | |
2377 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3009 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2378 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3010 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2379 | |
3011 | |
2380 | char *pend = strrchr (path, '/'); |
3012 | char *pend = strrchr (path, '/'); |
2381 | |
3013 | |
2382 | if (!pend) |
3014 | if (!pend || pend == path) |
2383 | break; /* whoops, no '/', complain to your admin */ |
3015 | break; |
2384 | |
3016 | |
2385 | *pend = 0; |
3017 | *pend = 0; |
2386 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3018 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2387 | } |
3019 | } |
2388 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3020 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2389 | } |
3021 | } |
2390 | } |
3022 | } |
2391 | else |
|
|
2392 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2393 | |
3023 | |
2394 | if (w->wd >= 0) |
3024 | if (w->wd >= 0) |
2395 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3025 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3026 | |
|
|
3027 | /* now re-arm timer, if required */ |
|
|
3028 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3029 | ev_timer_again (EV_A_ &w->timer); |
|
|
3030 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2396 | } |
3031 | } |
2397 | |
3032 | |
2398 | static void noinline |
3033 | static void noinline |
2399 | infy_del (EV_P_ ev_stat *w) |
3034 | infy_del (EV_P_ ev_stat *w) |
2400 | { |
3035 | { |
… | |
… | |
2403 | |
3038 | |
2404 | if (wd < 0) |
3039 | if (wd < 0) |
2405 | return; |
3040 | return; |
2406 | |
3041 | |
2407 | w->wd = -2; |
3042 | w->wd = -2; |
2408 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3043 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2409 | wlist_del (&fs_hash [slot].head, (WL)w); |
3044 | wlist_del (&fs_hash [slot].head, (WL)w); |
2410 | |
3045 | |
2411 | /* remove this watcher, if others are watching it, they will rearm */ |
3046 | /* remove this watcher, if others are watching it, they will rearm */ |
2412 | inotify_rm_watch (fs_fd, wd); |
3047 | inotify_rm_watch (fs_fd, wd); |
2413 | } |
3048 | } |
2414 | |
3049 | |
2415 | static void noinline |
3050 | static void noinline |
2416 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3051 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2417 | { |
3052 | { |
2418 | if (slot < 0) |
3053 | if (slot < 0) |
2419 | /* overflow, need to check for all hahs slots */ |
3054 | /* overflow, need to check for all hash slots */ |
2420 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3055 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2421 | infy_wd (EV_A_ slot, wd, ev); |
3056 | infy_wd (EV_A_ slot, wd, ev); |
2422 | else |
3057 | else |
2423 | { |
3058 | { |
2424 | WL w_; |
3059 | WL w_; |
2425 | |
3060 | |
2426 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3061 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2427 | { |
3062 | { |
2428 | ev_stat *w = (ev_stat *)w_; |
3063 | ev_stat *w = (ev_stat *)w_; |
2429 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3064 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2430 | |
3065 | |
2431 | if (w->wd == wd || wd == -1) |
3066 | if (w->wd == wd || wd == -1) |
2432 | { |
3067 | { |
2433 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3068 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2434 | { |
3069 | { |
|
|
3070 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2435 | w->wd = -1; |
3071 | w->wd = -1; |
2436 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3072 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2437 | } |
3073 | } |
2438 | |
3074 | |
2439 | stat_timer_cb (EV_A_ &w->timer, 0); |
3075 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2444 | |
3080 | |
2445 | static void |
3081 | static void |
2446 | infy_cb (EV_P_ ev_io *w, int revents) |
3082 | infy_cb (EV_P_ ev_io *w, int revents) |
2447 | { |
3083 | { |
2448 | char buf [EV_INOTIFY_BUFSIZE]; |
3084 | char buf [EV_INOTIFY_BUFSIZE]; |
2449 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2450 | int ofs; |
3085 | int ofs; |
2451 | int len = read (fs_fd, buf, sizeof (buf)); |
3086 | int len = read (fs_fd, buf, sizeof (buf)); |
2452 | |
3087 | |
2453 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3088 | for (ofs = 0; ofs < len; ) |
|
|
3089 | { |
|
|
3090 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2454 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3091 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3092 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3093 | } |
2455 | } |
3094 | } |
2456 | |
3095 | |
2457 | void inline_size |
3096 | inline_size void |
|
|
3097 | ev_check_2625 (EV_P) |
|
|
3098 | { |
|
|
3099 | /* kernels < 2.6.25 are borked |
|
|
3100 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3101 | */ |
|
|
3102 | if (ev_linux_version () < 0x020619) |
|
|
3103 | return; |
|
|
3104 | |
|
|
3105 | fs_2625 = 1; |
|
|
3106 | } |
|
|
3107 | |
|
|
3108 | inline_size int |
|
|
3109 | infy_newfd (void) |
|
|
3110 | { |
|
|
3111 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3112 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3113 | if (fd >= 0) |
|
|
3114 | return fd; |
|
|
3115 | #endif |
|
|
3116 | return inotify_init (); |
|
|
3117 | } |
|
|
3118 | |
|
|
3119 | inline_size void |
2458 | infy_init (EV_P) |
3120 | infy_init (EV_P) |
2459 | { |
3121 | { |
2460 | if (fs_fd != -2) |
3122 | if (fs_fd != -2) |
2461 | return; |
3123 | return; |
2462 | |
3124 | |
|
|
3125 | fs_fd = -1; |
|
|
3126 | |
|
|
3127 | ev_check_2625 (EV_A); |
|
|
3128 | |
2463 | fs_fd = inotify_init (); |
3129 | fs_fd = infy_newfd (); |
2464 | |
3130 | |
2465 | if (fs_fd >= 0) |
3131 | if (fs_fd >= 0) |
2466 | { |
3132 | { |
|
|
3133 | fd_intern (fs_fd); |
2467 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3134 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2468 | ev_set_priority (&fs_w, EV_MAXPRI); |
3135 | ev_set_priority (&fs_w, EV_MAXPRI); |
2469 | ev_io_start (EV_A_ &fs_w); |
3136 | ev_io_start (EV_A_ &fs_w); |
|
|
3137 | ev_unref (EV_A); |
2470 | } |
3138 | } |
2471 | } |
3139 | } |
2472 | |
3140 | |
2473 | void inline_size |
3141 | inline_size void |
2474 | infy_fork (EV_P) |
3142 | infy_fork (EV_P) |
2475 | { |
3143 | { |
2476 | int slot; |
3144 | int slot; |
2477 | |
3145 | |
2478 | if (fs_fd < 0) |
3146 | if (fs_fd < 0) |
2479 | return; |
3147 | return; |
2480 | |
3148 | |
|
|
3149 | ev_ref (EV_A); |
|
|
3150 | ev_io_stop (EV_A_ &fs_w); |
2481 | close (fs_fd); |
3151 | close (fs_fd); |
2482 | fs_fd = inotify_init (); |
3152 | fs_fd = infy_newfd (); |
2483 | |
3153 | |
|
|
3154 | if (fs_fd >= 0) |
|
|
3155 | { |
|
|
3156 | fd_intern (fs_fd); |
|
|
3157 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3158 | ev_io_start (EV_A_ &fs_w); |
|
|
3159 | ev_unref (EV_A); |
|
|
3160 | } |
|
|
3161 | |
2484 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3162 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2485 | { |
3163 | { |
2486 | WL w_ = fs_hash [slot].head; |
3164 | WL w_ = fs_hash [slot].head; |
2487 | fs_hash [slot].head = 0; |
3165 | fs_hash [slot].head = 0; |
2488 | |
3166 | |
2489 | while (w_) |
3167 | while (w_) |
… | |
… | |
2494 | w->wd = -1; |
3172 | w->wd = -1; |
2495 | |
3173 | |
2496 | if (fs_fd >= 0) |
3174 | if (fs_fd >= 0) |
2497 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3175 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2498 | else |
3176 | else |
|
|
3177 | { |
|
|
3178 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3179 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2499 | ev_timer_start (EV_A_ &w->timer); |
3180 | ev_timer_again (EV_A_ &w->timer); |
|
|
3181 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3182 | } |
2500 | } |
3183 | } |
2501 | |
|
|
2502 | } |
3184 | } |
2503 | } |
3185 | } |
2504 | |
3186 | |
|
|
3187 | #endif |
|
|
3188 | |
|
|
3189 | #ifdef _WIN32 |
|
|
3190 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3191 | #else |
|
|
3192 | # define EV_LSTAT(p,b) lstat (p, b) |
2505 | #endif |
3193 | #endif |
2506 | |
3194 | |
2507 | void |
3195 | void |
2508 | ev_stat_stat (EV_P_ ev_stat *w) |
3196 | ev_stat_stat (EV_P_ ev_stat *w) |
2509 | { |
3197 | { |
… | |
… | |
2516 | static void noinline |
3204 | static void noinline |
2517 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3205 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2518 | { |
3206 | { |
2519 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3207 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2520 | |
3208 | |
2521 | /* we copy this here each the time so that */ |
3209 | ev_statdata prev = w->attr; |
2522 | /* prev has the old value when the callback gets invoked */ |
|
|
2523 | w->prev = w->attr; |
|
|
2524 | ev_stat_stat (EV_A_ w); |
3210 | ev_stat_stat (EV_A_ w); |
2525 | |
3211 | |
2526 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3212 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2527 | if ( |
3213 | if ( |
2528 | w->prev.st_dev != w->attr.st_dev |
3214 | prev.st_dev != w->attr.st_dev |
2529 | || w->prev.st_ino != w->attr.st_ino |
3215 | || prev.st_ino != w->attr.st_ino |
2530 | || w->prev.st_mode != w->attr.st_mode |
3216 | || prev.st_mode != w->attr.st_mode |
2531 | || w->prev.st_nlink != w->attr.st_nlink |
3217 | || prev.st_nlink != w->attr.st_nlink |
2532 | || w->prev.st_uid != w->attr.st_uid |
3218 | || prev.st_uid != w->attr.st_uid |
2533 | || w->prev.st_gid != w->attr.st_gid |
3219 | || prev.st_gid != w->attr.st_gid |
2534 | || w->prev.st_rdev != w->attr.st_rdev |
3220 | || prev.st_rdev != w->attr.st_rdev |
2535 | || w->prev.st_size != w->attr.st_size |
3221 | || prev.st_size != w->attr.st_size |
2536 | || w->prev.st_atime != w->attr.st_atime |
3222 | || prev.st_atime != w->attr.st_atime |
2537 | || w->prev.st_mtime != w->attr.st_mtime |
3223 | || prev.st_mtime != w->attr.st_mtime |
2538 | || w->prev.st_ctime != w->attr.st_ctime |
3224 | || prev.st_ctime != w->attr.st_ctime |
2539 | ) { |
3225 | ) { |
|
|
3226 | /* we only update w->prev on actual differences */ |
|
|
3227 | /* in case we test more often than invoke the callback, */ |
|
|
3228 | /* to ensure that prev is always different to attr */ |
|
|
3229 | w->prev = prev; |
|
|
3230 | |
2540 | #if EV_USE_INOTIFY |
3231 | #if EV_USE_INOTIFY |
|
|
3232 | if (fs_fd >= 0) |
|
|
3233 | { |
2541 | infy_del (EV_A_ w); |
3234 | infy_del (EV_A_ w); |
2542 | infy_add (EV_A_ w); |
3235 | infy_add (EV_A_ w); |
2543 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3236 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3237 | } |
2544 | #endif |
3238 | #endif |
2545 | |
3239 | |
2546 | ev_feed_event (EV_A_ w, EV_STAT); |
3240 | ev_feed_event (EV_A_ w, EV_STAT); |
2547 | } |
3241 | } |
2548 | } |
3242 | } |
… | |
… | |
2551 | ev_stat_start (EV_P_ ev_stat *w) |
3245 | ev_stat_start (EV_P_ ev_stat *w) |
2552 | { |
3246 | { |
2553 | if (expect_false (ev_is_active (w))) |
3247 | if (expect_false (ev_is_active (w))) |
2554 | return; |
3248 | return; |
2555 | |
3249 | |
2556 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2557 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2558 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2559 | |
|
|
2560 | ev_stat_stat (EV_A_ w); |
3250 | ev_stat_stat (EV_A_ w); |
2561 | |
3251 | |
|
|
3252 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2562 | if (w->interval < MIN_STAT_INTERVAL) |
3253 | w->interval = MIN_STAT_INTERVAL; |
2563 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2564 | |
3254 | |
2565 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3255 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2566 | ev_set_priority (&w->timer, ev_priority (w)); |
3256 | ev_set_priority (&w->timer, ev_priority (w)); |
2567 | |
3257 | |
2568 | #if EV_USE_INOTIFY |
3258 | #if EV_USE_INOTIFY |
2569 | infy_init (EV_A); |
3259 | infy_init (EV_A); |
2570 | |
3260 | |
2571 | if (fs_fd >= 0) |
3261 | if (fs_fd >= 0) |
2572 | infy_add (EV_A_ w); |
3262 | infy_add (EV_A_ w); |
2573 | else |
3263 | else |
2574 | #endif |
3264 | #endif |
|
|
3265 | { |
2575 | ev_timer_start (EV_A_ &w->timer); |
3266 | ev_timer_again (EV_A_ &w->timer); |
|
|
3267 | ev_unref (EV_A); |
|
|
3268 | } |
2576 | |
3269 | |
2577 | ev_start (EV_A_ (W)w, 1); |
3270 | ev_start (EV_A_ (W)w, 1); |
2578 | |
3271 | |
2579 | EV_FREQUENT_CHECK; |
3272 | EV_FREQUENT_CHECK; |
2580 | } |
3273 | } |
… | |
… | |
2589 | EV_FREQUENT_CHECK; |
3282 | EV_FREQUENT_CHECK; |
2590 | |
3283 | |
2591 | #if EV_USE_INOTIFY |
3284 | #if EV_USE_INOTIFY |
2592 | infy_del (EV_A_ w); |
3285 | infy_del (EV_A_ w); |
2593 | #endif |
3286 | #endif |
|
|
3287 | |
|
|
3288 | if (ev_is_active (&w->timer)) |
|
|
3289 | { |
|
|
3290 | ev_ref (EV_A); |
2594 | ev_timer_stop (EV_A_ &w->timer); |
3291 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3292 | } |
2595 | |
3293 | |
2596 | ev_stop (EV_A_ (W)w); |
3294 | ev_stop (EV_A_ (W)w); |
2597 | |
3295 | |
2598 | EV_FREQUENT_CHECK; |
3296 | EV_FREQUENT_CHECK; |
2599 | } |
3297 | } |
… | |
… | |
2644 | |
3342 | |
2645 | EV_FREQUENT_CHECK; |
3343 | EV_FREQUENT_CHECK; |
2646 | } |
3344 | } |
2647 | #endif |
3345 | #endif |
2648 | |
3346 | |
|
|
3347 | #if EV_PREPARE_ENABLE |
2649 | void |
3348 | void |
2650 | ev_prepare_start (EV_P_ ev_prepare *w) |
3349 | ev_prepare_start (EV_P_ ev_prepare *w) |
2651 | { |
3350 | { |
2652 | if (expect_false (ev_is_active (w))) |
3351 | if (expect_false (ev_is_active (w))) |
2653 | return; |
3352 | return; |
… | |
… | |
2679 | |
3378 | |
2680 | ev_stop (EV_A_ (W)w); |
3379 | ev_stop (EV_A_ (W)w); |
2681 | |
3380 | |
2682 | EV_FREQUENT_CHECK; |
3381 | EV_FREQUENT_CHECK; |
2683 | } |
3382 | } |
|
|
3383 | #endif |
2684 | |
3384 | |
|
|
3385 | #if EV_CHECK_ENABLE |
2685 | void |
3386 | void |
2686 | ev_check_start (EV_P_ ev_check *w) |
3387 | ev_check_start (EV_P_ ev_check *w) |
2687 | { |
3388 | { |
2688 | if (expect_false (ev_is_active (w))) |
3389 | if (expect_false (ev_is_active (w))) |
2689 | return; |
3390 | return; |
… | |
… | |
2715 | |
3416 | |
2716 | ev_stop (EV_A_ (W)w); |
3417 | ev_stop (EV_A_ (W)w); |
2717 | |
3418 | |
2718 | EV_FREQUENT_CHECK; |
3419 | EV_FREQUENT_CHECK; |
2719 | } |
3420 | } |
|
|
3421 | #endif |
2720 | |
3422 | |
2721 | #if EV_EMBED_ENABLE |
3423 | #if EV_EMBED_ENABLE |
2722 | void noinline |
3424 | void noinline |
2723 | ev_embed_sweep (EV_P_ ev_embed *w) |
3425 | ev_embed_sweep (EV_P_ ev_embed *w) |
2724 | { |
3426 | { |
2725 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3427 | ev_run (w->other, EVRUN_NOWAIT); |
2726 | } |
3428 | } |
2727 | |
3429 | |
2728 | static void |
3430 | static void |
2729 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3431 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2730 | { |
3432 | { |
2731 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3433 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2732 | |
3434 | |
2733 | if (ev_cb (w)) |
3435 | if (ev_cb (w)) |
2734 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3436 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2735 | else |
3437 | else |
2736 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3438 | ev_run (w->other, EVRUN_NOWAIT); |
2737 | } |
3439 | } |
2738 | |
3440 | |
2739 | static void |
3441 | static void |
2740 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3442 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2741 | { |
3443 | { |
2742 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3444 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2743 | |
3445 | |
2744 | { |
3446 | { |
2745 | struct ev_loop *loop = w->other; |
3447 | EV_P = w->other; |
2746 | |
3448 | |
2747 | while (fdchangecnt) |
3449 | while (fdchangecnt) |
2748 | { |
3450 | { |
2749 | fd_reify (EV_A); |
3451 | fd_reify (EV_A); |
2750 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3452 | ev_run (EV_A_ EVRUN_NOWAIT); |
2751 | } |
3453 | } |
2752 | } |
3454 | } |
|
|
3455 | } |
|
|
3456 | |
|
|
3457 | static void |
|
|
3458 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3459 | { |
|
|
3460 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3461 | |
|
|
3462 | ev_embed_stop (EV_A_ w); |
|
|
3463 | |
|
|
3464 | { |
|
|
3465 | EV_P = w->other; |
|
|
3466 | |
|
|
3467 | ev_loop_fork (EV_A); |
|
|
3468 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3469 | } |
|
|
3470 | |
|
|
3471 | ev_embed_start (EV_A_ w); |
2753 | } |
3472 | } |
2754 | |
3473 | |
2755 | #if 0 |
3474 | #if 0 |
2756 | static void |
3475 | static void |
2757 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3476 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2765 | { |
3484 | { |
2766 | if (expect_false (ev_is_active (w))) |
3485 | if (expect_false (ev_is_active (w))) |
2767 | return; |
3486 | return; |
2768 | |
3487 | |
2769 | { |
3488 | { |
2770 | struct ev_loop *loop = w->other; |
3489 | EV_P = w->other; |
2771 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3490 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2772 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3491 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2773 | } |
3492 | } |
2774 | |
3493 | |
2775 | EV_FREQUENT_CHECK; |
3494 | EV_FREQUENT_CHECK; |
2776 | |
3495 | |
… | |
… | |
2779 | |
3498 | |
2780 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3499 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2781 | ev_set_priority (&w->prepare, EV_MINPRI); |
3500 | ev_set_priority (&w->prepare, EV_MINPRI); |
2782 | ev_prepare_start (EV_A_ &w->prepare); |
3501 | ev_prepare_start (EV_A_ &w->prepare); |
2783 | |
3502 | |
|
|
3503 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3504 | ev_fork_start (EV_A_ &w->fork); |
|
|
3505 | |
2784 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3506 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2785 | |
3507 | |
2786 | ev_start (EV_A_ (W)w, 1); |
3508 | ev_start (EV_A_ (W)w, 1); |
2787 | |
3509 | |
2788 | EV_FREQUENT_CHECK; |
3510 | EV_FREQUENT_CHECK; |
… | |
… | |
2795 | if (expect_false (!ev_is_active (w))) |
3517 | if (expect_false (!ev_is_active (w))) |
2796 | return; |
3518 | return; |
2797 | |
3519 | |
2798 | EV_FREQUENT_CHECK; |
3520 | EV_FREQUENT_CHECK; |
2799 | |
3521 | |
2800 | ev_io_stop (EV_A_ &w->io); |
3522 | ev_io_stop (EV_A_ &w->io); |
2801 | ev_prepare_stop (EV_A_ &w->prepare); |
3523 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3524 | ev_fork_stop (EV_A_ &w->fork); |
2802 | |
3525 | |
2803 | ev_stop (EV_A_ (W)w); |
3526 | ev_stop (EV_A_ (W)w); |
2804 | |
3527 | |
2805 | EV_FREQUENT_CHECK; |
3528 | EV_FREQUENT_CHECK; |
2806 | } |
3529 | } |
… | |
… | |
2849 | ev_async_start (EV_P_ ev_async *w) |
3572 | ev_async_start (EV_P_ ev_async *w) |
2850 | { |
3573 | { |
2851 | if (expect_false (ev_is_active (w))) |
3574 | if (expect_false (ev_is_active (w))) |
2852 | return; |
3575 | return; |
2853 | |
3576 | |
|
|
3577 | w->sent = 0; |
|
|
3578 | |
2854 | evpipe_init (EV_A); |
3579 | evpipe_init (EV_A); |
2855 | |
3580 | |
2856 | EV_FREQUENT_CHECK; |
3581 | EV_FREQUENT_CHECK; |
2857 | |
3582 | |
2858 | ev_start (EV_A_ (W)w, ++asynccnt); |
3583 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
2885 | |
3610 | |
2886 | void |
3611 | void |
2887 | ev_async_send (EV_P_ ev_async *w) |
3612 | ev_async_send (EV_P_ ev_async *w) |
2888 | { |
3613 | { |
2889 | w->sent = 1; |
3614 | w->sent = 1; |
2890 | evpipe_write (EV_A_ &gotasync); |
3615 | evpipe_write (EV_A_ &async_pending); |
2891 | } |
3616 | } |
2892 | #endif |
3617 | #endif |
2893 | |
3618 | |
2894 | /*****************************************************************************/ |
3619 | /*****************************************************************************/ |
2895 | |
3620 | |
… | |
… | |
2905 | once_cb (EV_P_ struct ev_once *once, int revents) |
3630 | once_cb (EV_P_ struct ev_once *once, int revents) |
2906 | { |
3631 | { |
2907 | void (*cb)(int revents, void *arg) = once->cb; |
3632 | void (*cb)(int revents, void *arg) = once->cb; |
2908 | void *arg = once->arg; |
3633 | void *arg = once->arg; |
2909 | |
3634 | |
2910 | ev_io_stop (EV_A_ &once->io); |
3635 | ev_io_stop (EV_A_ &once->io); |
2911 | ev_timer_stop (EV_A_ &once->to); |
3636 | ev_timer_stop (EV_A_ &once->to); |
2912 | ev_free (once); |
3637 | ev_free (once); |
2913 | |
3638 | |
2914 | cb (revents, arg); |
3639 | cb (revents, arg); |
2915 | } |
3640 | } |
2916 | |
3641 | |
2917 | static void |
3642 | static void |
2918 | once_cb_io (EV_P_ ev_io *w, int revents) |
3643 | once_cb_io (EV_P_ ev_io *w, int revents) |
2919 | { |
3644 | { |
2920 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3645 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3646 | |
|
|
3647 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2921 | } |
3648 | } |
2922 | |
3649 | |
2923 | static void |
3650 | static void |
2924 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3651 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2925 | { |
3652 | { |
2926 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3653 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3654 | |
|
|
3655 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2927 | } |
3656 | } |
2928 | |
3657 | |
2929 | void |
3658 | void |
2930 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3659 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2931 | { |
3660 | { |
2932 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3661 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2933 | |
3662 | |
2934 | if (expect_false (!once)) |
3663 | if (expect_false (!once)) |
2935 | { |
3664 | { |
2936 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3665 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2937 | return; |
3666 | return; |
2938 | } |
3667 | } |
2939 | |
3668 | |
2940 | once->cb = cb; |
3669 | once->cb = cb; |
2941 | once->arg = arg; |
3670 | once->arg = arg; |
… | |
… | |
2953 | ev_timer_set (&once->to, timeout, 0.); |
3682 | ev_timer_set (&once->to, timeout, 0.); |
2954 | ev_timer_start (EV_A_ &once->to); |
3683 | ev_timer_start (EV_A_ &once->to); |
2955 | } |
3684 | } |
2956 | } |
3685 | } |
2957 | |
3686 | |
|
|
3687 | /*****************************************************************************/ |
|
|
3688 | |
|
|
3689 | #if EV_WALK_ENABLE |
|
|
3690 | void |
|
|
3691 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3692 | { |
|
|
3693 | int i, j; |
|
|
3694 | ev_watcher_list *wl, *wn; |
|
|
3695 | |
|
|
3696 | if (types & (EV_IO | EV_EMBED)) |
|
|
3697 | for (i = 0; i < anfdmax; ++i) |
|
|
3698 | for (wl = anfds [i].head; wl; ) |
|
|
3699 | { |
|
|
3700 | wn = wl->next; |
|
|
3701 | |
|
|
3702 | #if EV_EMBED_ENABLE |
|
|
3703 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3704 | { |
|
|
3705 | if (types & EV_EMBED) |
|
|
3706 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3707 | } |
|
|
3708 | else |
|
|
3709 | #endif |
|
|
3710 | #if EV_USE_INOTIFY |
|
|
3711 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3712 | ; |
|
|
3713 | else |
|
|
3714 | #endif |
|
|
3715 | if ((ev_io *)wl != &pipe_w) |
|
|
3716 | if (types & EV_IO) |
|
|
3717 | cb (EV_A_ EV_IO, wl); |
|
|
3718 | |
|
|
3719 | wl = wn; |
|
|
3720 | } |
|
|
3721 | |
|
|
3722 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3723 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3724 | #if EV_STAT_ENABLE |
|
|
3725 | /*TODO: timer is not always active*/ |
|
|
3726 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3727 | { |
|
|
3728 | if (types & EV_STAT) |
|
|
3729 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3730 | } |
|
|
3731 | else |
|
|
3732 | #endif |
|
|
3733 | if (types & EV_TIMER) |
|
|
3734 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3735 | |
|
|
3736 | #if EV_PERIODIC_ENABLE |
|
|
3737 | if (types & EV_PERIODIC) |
|
|
3738 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3739 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3740 | #endif |
|
|
3741 | |
|
|
3742 | #if EV_IDLE_ENABLE |
|
|
3743 | if (types & EV_IDLE) |
|
|
3744 | for (j = NUMPRI; i--; ) |
|
|
3745 | for (i = idlecnt [j]; i--; ) |
|
|
3746 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3747 | #endif |
|
|
3748 | |
|
|
3749 | #if EV_FORK_ENABLE |
|
|
3750 | if (types & EV_FORK) |
|
|
3751 | for (i = forkcnt; i--; ) |
|
|
3752 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3753 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3754 | #endif |
|
|
3755 | |
|
|
3756 | #if EV_ASYNC_ENABLE |
|
|
3757 | if (types & EV_ASYNC) |
|
|
3758 | for (i = asynccnt; i--; ) |
|
|
3759 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3760 | #endif |
|
|
3761 | |
|
|
3762 | #if EV_PREPARE_ENABLE |
|
|
3763 | if (types & EV_PREPARE) |
|
|
3764 | for (i = preparecnt; i--; ) |
|
|
3765 | # if EV_EMBED_ENABLE |
|
|
3766 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3767 | # endif |
|
|
3768 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3769 | #endif |
|
|
3770 | |
|
|
3771 | #if EV_CHECK_ENABLE |
|
|
3772 | if (types & EV_CHECK) |
|
|
3773 | for (i = checkcnt; i--; ) |
|
|
3774 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3775 | #endif |
|
|
3776 | |
|
|
3777 | #if EV_SIGNAL_ENABLE |
|
|
3778 | if (types & EV_SIGNAL) |
|
|
3779 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3780 | for (wl = signals [i].head; wl; ) |
|
|
3781 | { |
|
|
3782 | wn = wl->next; |
|
|
3783 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3784 | wl = wn; |
|
|
3785 | } |
|
|
3786 | #endif |
|
|
3787 | |
|
|
3788 | #if EV_CHILD_ENABLE |
|
|
3789 | if (types & EV_CHILD) |
|
|
3790 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3791 | for (wl = childs [i]; wl; ) |
|
|
3792 | { |
|
|
3793 | wn = wl->next; |
|
|
3794 | cb (EV_A_ EV_CHILD, wl); |
|
|
3795 | wl = wn; |
|
|
3796 | } |
|
|
3797 | #endif |
|
|
3798 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3799 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3800 | } |
|
|
3801 | #endif |
|
|
3802 | |
2958 | #if EV_MULTIPLICITY |
3803 | #if EV_MULTIPLICITY |
2959 | #include "ev_wrap.h" |
3804 | #include "ev_wrap.h" |
2960 | #endif |
3805 | #endif |
2961 | |
3806 | |
2962 | #ifdef __cplusplus |
3807 | EV_CPP(}) |
2963 | } |
|
|
2964 | #endif |
|
|
2965 | |
3808 | |