1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 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 | * |
… | |
… | |
39 | |
39 | |
40 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
41 | extern "C" { |
41 | extern "C" { |
42 | #endif |
42 | #endif |
43 | |
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
44 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
45 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
46 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
47 | # else |
48 | # else |
48 | # include "config.h" |
49 | # include "config.h" |
49 | # endif |
50 | # endif |
50 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
|
|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
64 | # endif |
|
|
65 | |
51 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
52 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
53 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
54 | # endif |
69 | # endif |
55 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
56 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
57 | # endif |
72 | # endif |
58 | # else |
73 | # else |
59 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
60 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
61 | # endif |
76 | # endif |
62 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
63 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
64 | # endif |
79 | # endif |
65 | # endif |
80 | # endif |
66 | |
81 | |
|
|
82 | # if HAVE_NANOSLEEP |
67 | # ifndef EV_USE_NANOSLEEP |
83 | # ifndef EV_USE_NANOSLEEP |
68 | # if HAVE_NANOSLEEP |
|
|
69 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
85 | # endif |
70 | # else |
86 | # else |
|
|
87 | # undef EV_USE_NANOSLEEP |
71 | # define EV_USE_NANOSLEEP 0 |
88 | # define EV_USE_NANOSLEEP 0 |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # ifndef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
72 | # endif |
94 | # endif |
|
|
95 | # else |
|
|
96 | # undef EV_USE_SELECT |
|
|
97 | # define EV_USE_SELECT 0 |
73 | # endif |
98 | # endif |
74 | |
99 | |
|
|
100 | # if HAVE_POLL && HAVE_POLL_H |
75 | # ifndef EV_USE_SELECT |
101 | # ifndef EV_USE_POLL |
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
102 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
77 | # define EV_USE_SELECT 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_SELECT 0 |
|
|
80 | # endif |
103 | # endif |
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_POLL |
|
|
84 | # if HAVE_POLL && HAVE_POLL_H |
|
|
85 | # define EV_USE_POLL 1 |
|
|
86 | # else |
104 | # else |
|
|
105 | # undef EV_USE_POLL |
87 | # define EV_USE_POLL 0 |
106 | # define EV_USE_POLL 0 |
88 | # endif |
|
|
89 | # endif |
107 | # endif |
90 | |
108 | |
91 | # ifndef EV_USE_EPOLL |
|
|
92 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
109 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
93 | # define EV_USE_EPOLL 1 |
110 | # ifndef EV_USE_EPOLL |
94 | # else |
111 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
95 | # define EV_USE_EPOLL 0 |
|
|
96 | # endif |
112 | # endif |
|
|
113 | # else |
|
|
114 | # undef EV_USE_EPOLL |
|
|
115 | # define EV_USE_EPOLL 0 |
97 | # endif |
116 | # endif |
98 | |
117 | |
|
|
118 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
99 | # ifndef EV_USE_KQUEUE |
119 | # ifndef EV_USE_KQUEUE |
100 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
120 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
101 | # define EV_USE_KQUEUE 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_KQUEUE 0 |
|
|
104 | # endif |
121 | # endif |
|
|
122 | # else |
|
|
123 | # undef EV_USE_KQUEUE |
|
|
124 | # define EV_USE_KQUEUE 0 |
105 | # endif |
125 | # endif |
106 | |
126 | |
107 | # ifndef EV_USE_PORT |
|
|
108 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
127 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
109 | # define EV_USE_PORT 1 |
128 | # ifndef EV_USE_PORT |
110 | # else |
129 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
111 | # define EV_USE_PORT 0 |
|
|
112 | # endif |
130 | # endif |
|
|
131 | # else |
|
|
132 | # undef EV_USE_PORT |
|
|
133 | # define EV_USE_PORT 0 |
113 | # endif |
134 | # endif |
114 | |
135 | |
115 | # ifndef EV_USE_INOTIFY |
|
|
116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
136 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
117 | # define EV_USE_INOTIFY 1 |
137 | # ifndef EV_USE_INOTIFY |
118 | # else |
|
|
119 | # define EV_USE_INOTIFY 0 |
138 | # define EV_USE_INOTIFY EV_FEATURE_OS |
120 | # endif |
139 | # endif |
|
|
140 | # else |
|
|
141 | # undef EV_USE_INOTIFY |
|
|
142 | # define EV_USE_INOTIFY 0 |
121 | # endif |
143 | # endif |
122 | |
144 | |
|
|
145 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
146 | # ifndef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
148 | # endif |
|
|
149 | # else |
|
|
150 | # undef EV_USE_SIGNALFD |
|
|
151 | # define EV_USE_SIGNALFD 0 |
|
|
152 | # endif |
|
|
153 | |
|
|
154 | # if HAVE_EVENTFD |
|
|
155 | # ifndef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
157 | # endif |
|
|
158 | # else |
|
|
159 | # undef EV_USE_EVENTFD |
|
|
160 | # define EV_USE_EVENTFD 0 |
|
|
161 | # endif |
|
|
162 | |
123 | #endif |
163 | #endif |
124 | |
164 | |
125 | #include <math.h> |
165 | #include <math.h> |
126 | #include <stdlib.h> |
166 | #include <stdlib.h> |
|
|
167 | #include <string.h> |
127 | #include <fcntl.h> |
168 | #include <fcntl.h> |
128 | #include <stddef.h> |
169 | #include <stddef.h> |
129 | |
170 | |
130 | #include <stdio.h> |
171 | #include <stdio.h> |
131 | |
172 | |
132 | #include <assert.h> |
173 | #include <assert.h> |
133 | #include <errno.h> |
174 | #include <errno.h> |
134 | #include <sys/types.h> |
175 | #include <sys/types.h> |
135 | #include <time.h> |
176 | #include <time.h> |
|
|
177 | #include <limits.h> |
136 | |
178 | |
137 | #include <signal.h> |
179 | #include <signal.h> |
138 | |
180 | |
139 | #ifdef EV_H |
181 | #ifdef EV_H |
140 | # include EV_H |
182 | # include EV_H |
… | |
… | |
145 | #ifndef _WIN32 |
187 | #ifndef _WIN32 |
146 | # include <sys/time.h> |
188 | # include <sys/time.h> |
147 | # include <sys/wait.h> |
189 | # include <sys/wait.h> |
148 | # include <unistd.h> |
190 | # include <unistd.h> |
149 | #else |
191 | #else |
|
|
192 | # include <io.h> |
150 | # define WIN32_LEAN_AND_MEAN |
193 | # define WIN32_LEAN_AND_MEAN |
151 | # include <windows.h> |
194 | # include <windows.h> |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
154 | # endif |
197 | # endif |
|
|
198 | # undef EV_AVOID_STDIO |
|
|
199 | #endif |
|
|
200 | |
|
|
201 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
202 | * a limit of 1024 into their select. Where people have brains, |
|
|
203 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
204 | * ordered to have a vacuum, or they do anything for money. |
|
|
205 | * This might help. Or not. |
|
|
206 | */ |
|
|
207 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
208 | |
|
|
209 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
210 | |
|
|
211 | /* try to deduce the maximum number of signals on this platform */ |
|
|
212 | #if defined (EV_NSIG) |
|
|
213 | /* use what's provided */ |
|
|
214 | #elif defined (NSIG) |
|
|
215 | # define EV_NSIG (NSIG) |
|
|
216 | #elif defined(_NSIG) |
|
|
217 | # define EV_NSIG (_NSIG) |
|
|
218 | #elif defined (SIGMAX) |
|
|
219 | # define EV_NSIG (SIGMAX+1) |
|
|
220 | #elif defined (SIG_MAX) |
|
|
221 | # define EV_NSIG (SIG_MAX+1) |
|
|
222 | #elif defined (_SIG_MAX) |
|
|
223 | # define EV_NSIG (_SIG_MAX+1) |
|
|
224 | #elif defined (MAXSIG) |
|
|
225 | # define EV_NSIG (MAXSIG+1) |
|
|
226 | #elif defined (MAX_SIG) |
|
|
227 | # define EV_NSIG (MAX_SIG+1) |
|
|
228 | #elif defined (SIGARRAYSIZE) |
|
|
229 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
230 | #elif defined (_sys_nsig) |
|
|
231 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
232 | #else |
|
|
233 | # error "unable to find value for NSIG, please report" |
|
|
234 | /* to make it compile regardless, just remove the above line, */ |
|
|
235 | /* but consider reporting it, too! :) */ |
|
|
236 | # define EV_NSIG 65 |
|
|
237 | #endif |
|
|
238 | |
|
|
239 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
240 | # if __linux && __GLIBC__ >= 2 |
|
|
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
242 | # else |
|
|
243 | # define EV_USE_CLOCK_SYSCALL 0 |
155 | #endif |
244 | # endif |
156 | |
245 | #endif |
157 | /**/ |
|
|
158 | |
246 | |
159 | #ifndef EV_USE_MONOTONIC |
247 | #ifndef EV_USE_MONOTONIC |
|
|
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
250 | # else |
160 | # define EV_USE_MONOTONIC 0 |
251 | # define EV_USE_MONOTONIC 0 |
|
|
252 | # endif |
161 | #endif |
253 | #endif |
162 | |
254 | |
163 | #ifndef EV_USE_REALTIME |
255 | #ifndef EV_USE_REALTIME |
164 | # define EV_USE_REALTIME 0 |
256 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
165 | #endif |
257 | #endif |
166 | |
258 | |
167 | #ifndef EV_USE_NANOSLEEP |
259 | #ifndef EV_USE_NANOSLEEP |
|
|
260 | # if _POSIX_C_SOURCE >= 199309L |
|
|
261 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
262 | # else |
168 | # define EV_USE_NANOSLEEP 0 |
263 | # define EV_USE_NANOSLEEP 0 |
|
|
264 | # endif |
169 | #endif |
265 | #endif |
170 | |
266 | |
171 | #ifndef EV_USE_SELECT |
267 | #ifndef EV_USE_SELECT |
172 | # define EV_USE_SELECT 1 |
268 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
173 | #endif |
269 | #endif |
174 | |
270 | |
175 | #ifndef EV_USE_POLL |
271 | #ifndef EV_USE_POLL |
176 | # ifdef _WIN32 |
272 | # ifdef _WIN32 |
177 | # define EV_USE_POLL 0 |
273 | # define EV_USE_POLL 0 |
178 | # else |
274 | # else |
179 | # define EV_USE_POLL 1 |
275 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
180 | # endif |
276 | # endif |
181 | #endif |
277 | #endif |
182 | |
278 | |
183 | #ifndef EV_USE_EPOLL |
279 | #ifndef EV_USE_EPOLL |
|
|
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
281 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
|
|
282 | # else |
184 | # define EV_USE_EPOLL 0 |
283 | # define EV_USE_EPOLL 0 |
|
|
284 | # endif |
185 | #endif |
285 | #endif |
186 | |
286 | |
187 | #ifndef EV_USE_KQUEUE |
287 | #ifndef EV_USE_KQUEUE |
188 | # define EV_USE_KQUEUE 0 |
288 | # define EV_USE_KQUEUE 0 |
189 | #endif |
289 | #endif |
… | |
… | |
191 | #ifndef EV_USE_PORT |
291 | #ifndef EV_USE_PORT |
192 | # define EV_USE_PORT 0 |
292 | # define EV_USE_PORT 0 |
193 | #endif |
293 | #endif |
194 | |
294 | |
195 | #ifndef EV_USE_INOTIFY |
295 | #ifndef EV_USE_INOTIFY |
|
|
296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
297 | # define EV_USE_INOTIFY EV_FEATURE_OS |
|
|
298 | # else |
196 | # define EV_USE_INOTIFY 0 |
299 | # define EV_USE_INOTIFY 0 |
|
|
300 | # endif |
197 | #endif |
301 | #endif |
198 | |
302 | |
199 | #ifndef EV_PID_HASHSIZE |
303 | #ifndef EV_PID_HASHSIZE |
200 | # if EV_MINIMAL |
304 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
201 | # define EV_PID_HASHSIZE 1 |
305 | #endif |
|
|
306 | |
|
|
307 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
308 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
|
|
309 | #endif |
|
|
310 | |
|
|
311 | #ifndef EV_USE_EVENTFD |
|
|
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
313 | # define EV_USE_EVENTFD EV_FEATURE_OS |
202 | # else |
314 | # else |
203 | # define EV_PID_HASHSIZE 16 |
315 | # define EV_USE_EVENTFD 0 |
204 | # endif |
316 | # endif |
205 | #endif |
317 | #endif |
206 | |
318 | |
207 | #ifndef EV_INOTIFY_HASHSIZE |
319 | #ifndef EV_USE_SIGNALFD |
208 | # if EV_MINIMAL |
320 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
209 | # define EV_INOTIFY_HASHSIZE 1 |
321 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
210 | # else |
322 | # else |
211 | # define EV_INOTIFY_HASHSIZE 16 |
323 | # define EV_USE_SIGNALFD 0 |
212 | # endif |
324 | # endif |
213 | #endif |
325 | #endif |
214 | |
326 | |
215 | /**/ |
327 | #if 0 /* debugging */ |
|
|
328 | # define EV_VERIFY 3 |
|
|
329 | # define EV_USE_4HEAP 1 |
|
|
330 | # define EV_HEAP_CACHE_AT 1 |
|
|
331 | #endif |
|
|
332 | |
|
|
333 | #ifndef EV_VERIFY |
|
|
334 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
335 | #endif |
|
|
336 | |
|
|
337 | #ifndef EV_USE_4HEAP |
|
|
338 | # define EV_USE_4HEAP EV_FEATURE_DATA |
|
|
339 | #endif |
|
|
340 | |
|
|
341 | #ifndef EV_HEAP_CACHE_AT |
|
|
342 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
343 | #endif |
|
|
344 | |
|
|
345 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
346 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
347 | #if EV_USE_CLOCK_SYSCALL |
|
|
348 | # include <syscall.h> |
|
|
349 | # ifdef SYS_clock_gettime |
|
|
350 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
351 | # undef EV_USE_MONOTONIC |
|
|
352 | # define EV_USE_MONOTONIC 1 |
|
|
353 | # else |
|
|
354 | # undef EV_USE_CLOCK_SYSCALL |
|
|
355 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
356 | # endif |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
360 | |
|
|
361 | #ifdef _AIX |
|
|
362 | /* AIX has a completely broken poll.h header */ |
|
|
363 | # undef EV_USE_POLL |
|
|
364 | # define EV_USE_POLL 0 |
|
|
365 | #endif |
216 | |
366 | |
217 | #ifndef CLOCK_MONOTONIC |
367 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
369 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
370 | #endif |
… | |
… | |
234 | # include <sys/select.h> |
384 | # include <sys/select.h> |
235 | # endif |
385 | # endif |
236 | #endif |
386 | #endif |
237 | |
387 | |
238 | #if EV_USE_INOTIFY |
388 | #if EV_USE_INOTIFY |
|
|
389 | # include <sys/utsname.h> |
|
|
390 | # include <sys/statfs.h> |
239 | # include <sys/inotify.h> |
391 | # include <sys/inotify.h> |
|
|
392 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
393 | # ifndef IN_DONT_FOLLOW |
|
|
394 | # undef EV_USE_INOTIFY |
|
|
395 | # define EV_USE_INOTIFY 0 |
|
|
396 | # endif |
240 | #endif |
397 | #endif |
241 | |
398 | |
242 | #if EV_SELECT_IS_WINSOCKET |
399 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
400 | # include <winsock.h> |
244 | #endif |
401 | #endif |
245 | |
402 | |
|
|
403 | #if EV_USE_EVENTFD |
|
|
404 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
405 | # include <stdint.h> |
|
|
406 | # ifndef EFD_NONBLOCK |
|
|
407 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
408 | # endif |
|
|
409 | # ifndef EFD_CLOEXEC |
|
|
410 | # ifdef O_CLOEXEC |
|
|
411 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
412 | # else |
|
|
413 | # define EFD_CLOEXEC 02000000 |
|
|
414 | # endif |
|
|
415 | # endif |
|
|
416 | # ifdef __cplusplus |
|
|
417 | extern "C" { |
|
|
418 | # endif |
|
|
419 | int (eventfd) (unsigned int initval, int flags); |
|
|
420 | # ifdef __cplusplus |
|
|
421 | } |
|
|
422 | # endif |
|
|
423 | #endif |
|
|
424 | |
|
|
425 | #if EV_USE_SIGNALFD |
|
|
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
427 | # include <stdint.h> |
|
|
428 | # ifndef SFD_NONBLOCK |
|
|
429 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
430 | # endif |
|
|
431 | # ifndef SFD_CLOEXEC |
|
|
432 | # ifdef O_CLOEXEC |
|
|
433 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
434 | # else |
|
|
435 | # define SFD_CLOEXEC 02000000 |
|
|
436 | # endif |
|
|
437 | # endif |
|
|
438 | # ifdef __cplusplus |
|
|
439 | extern "C" { |
|
|
440 | # endif |
|
|
441 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
442 | |
|
|
443 | struct signalfd_siginfo |
|
|
444 | { |
|
|
445 | uint32_t ssi_signo; |
|
|
446 | char pad[128 - sizeof (uint32_t)]; |
|
|
447 | }; |
|
|
448 | # ifdef __cplusplus |
|
|
449 | } |
|
|
450 | # endif |
|
|
451 | #endif |
|
|
452 | |
246 | /**/ |
453 | /**/ |
|
|
454 | |
|
|
455 | #if EV_VERIFY >= 3 |
|
|
456 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
457 | #else |
|
|
458 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
459 | #endif |
247 | |
460 | |
248 | /* |
461 | /* |
249 | * This is used to avoid floating point rounding problems. |
462 | * This is used to avoid floating point rounding problems. |
250 | * It is added to ev_rt_now when scheduling periodics |
463 | * It is added to ev_rt_now when scheduling periodics |
251 | * to ensure progress, time-wise, even when rounding |
464 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
255 | */ |
468 | */ |
256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
469 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
257 | |
470 | |
258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
471 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
472 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
473 | |
|
|
474 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
475 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
261 | |
476 | |
262 | #if __GNUC__ >= 4 |
477 | #if __GNUC__ >= 4 |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
478 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
264 | # define noinline __attribute__ ((noinline)) |
479 | # define noinline __attribute__ ((noinline)) |
265 | #else |
480 | #else |
266 | # define expect(expr,value) (expr) |
481 | # define expect(expr,value) (expr) |
267 | # define noinline |
482 | # define noinline |
268 | # if __STDC_VERSION__ < 199901L |
483 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
269 | # define inline |
484 | # define inline |
270 | # endif |
485 | # endif |
271 | #endif |
486 | #endif |
272 | |
487 | |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
488 | #define expect_false(expr) expect ((expr) != 0, 0) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
489 | #define expect_true(expr) expect ((expr) != 0, 1) |
275 | #define inline_size static inline |
490 | #define inline_size static inline |
276 | |
491 | |
277 | #if EV_MINIMAL |
492 | #if EV_FEATURE_CODE |
|
|
493 | # define inline_speed static inline |
|
|
494 | #else |
278 | # define inline_speed static noinline |
495 | # define inline_speed static noinline |
|
|
496 | #endif |
|
|
497 | |
|
|
498 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
499 | |
|
|
500 | #if EV_MINPRI == EV_MAXPRI |
|
|
501 | # define ABSPRI(w) (((W)w), 0) |
279 | #else |
502 | #else |
280 | # define inline_speed static inline |
|
|
281 | #endif |
|
|
282 | |
|
|
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
503 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
504 | #endif |
285 | |
505 | |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
506 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
507 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
288 | |
508 | |
289 | typedef ev_watcher *W; |
509 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
510 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
511 | typedef ev_watcher_time *WT; |
292 | |
512 | |
|
|
513 | #define ev_active(w) ((W)(w))->active |
|
|
514 | #define ev_at(w) ((WT)(w))->at |
|
|
515 | |
|
|
516 | #if EV_USE_REALTIME |
|
|
517 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
518 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
519 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
520 | #endif |
|
|
521 | |
293 | #if EV_USE_MONOTONIC |
522 | #if EV_USE_MONOTONIC |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
523 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
524 | #endif |
|
|
525 | |
|
|
526 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
527 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
528 | #endif |
|
|
529 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
530 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
531 | #endif |
|
|
532 | #ifndef EV_WIN32_CLOSE_FD |
|
|
533 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
297 | #endif |
534 | #endif |
298 | |
535 | |
299 | #ifdef _WIN32 |
536 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
537 | # include "ev_win32.c" |
301 | #endif |
538 | #endif |
302 | |
539 | |
303 | /*****************************************************************************/ |
540 | /*****************************************************************************/ |
304 | |
541 | |
|
|
542 | #if EV_AVOID_STDIO |
|
|
543 | static void noinline |
|
|
544 | ev_printerr (const char *msg) |
|
|
545 | { |
|
|
546 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
547 | } |
|
|
548 | #endif |
|
|
549 | |
305 | static void (*syserr_cb)(const char *msg); |
550 | static void (*syserr_cb)(const char *msg); |
306 | |
551 | |
307 | void |
552 | void |
308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
553 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
309 | { |
554 | { |
310 | syserr_cb = cb; |
555 | syserr_cb = cb; |
311 | } |
556 | } |
312 | |
557 | |
313 | static void noinline |
558 | static void noinline |
314 | syserr (const char *msg) |
559 | ev_syserr (const char *msg) |
315 | { |
560 | { |
316 | if (!msg) |
561 | if (!msg) |
317 | msg = "(libev) system error"; |
562 | msg = "(libev) system error"; |
318 | |
563 | |
319 | if (syserr_cb) |
564 | if (syserr_cb) |
320 | syserr_cb (msg); |
565 | syserr_cb (msg); |
321 | else |
566 | else |
322 | { |
567 | { |
|
|
568 | #if EV_AVOID_STDIO |
|
|
569 | const char *err = strerror (errno); |
|
|
570 | |
|
|
571 | ev_printerr (msg); |
|
|
572 | ev_printerr (": "); |
|
|
573 | ev_printerr (err); |
|
|
574 | ev_printerr ("\n"); |
|
|
575 | #else |
323 | perror (msg); |
576 | perror (msg); |
|
|
577 | #endif |
324 | abort (); |
578 | abort (); |
325 | } |
579 | } |
326 | } |
580 | } |
327 | |
581 | |
|
|
582 | static void * |
|
|
583 | ev_realloc_emul (void *ptr, long size) |
|
|
584 | { |
|
|
585 | #if __GLIBC__ |
|
|
586 | return realloc (ptr, size); |
|
|
587 | #else |
|
|
588 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
589 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
590 | * the single unix specification, so work around them here. |
|
|
591 | */ |
|
|
592 | |
|
|
593 | if (size) |
|
|
594 | return realloc (ptr, size); |
|
|
595 | |
|
|
596 | free (ptr); |
|
|
597 | return 0; |
|
|
598 | #endif |
|
|
599 | } |
|
|
600 | |
328 | static void *(*alloc)(void *ptr, long size); |
601 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
602 | |
330 | void |
603 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
604 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
605 | { |
333 | alloc = cb; |
606 | alloc = cb; |
334 | } |
607 | } |
335 | |
608 | |
336 | inline_speed void * |
609 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
610 | ev_realloc (void *ptr, long size) |
338 | { |
611 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
612 | ptr = alloc (ptr, size); |
340 | |
613 | |
341 | if (!ptr && size) |
614 | if (!ptr && size) |
342 | { |
615 | { |
|
|
616 | #if EV_AVOID_STDIO |
|
|
617 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
618 | #else |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
619 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
620 | #endif |
344 | abort (); |
621 | abort (); |
345 | } |
622 | } |
346 | |
623 | |
347 | return ptr; |
624 | return ptr; |
348 | } |
625 | } |
… | |
… | |
350 | #define ev_malloc(size) ev_realloc (0, (size)) |
627 | #define ev_malloc(size) ev_realloc (0, (size)) |
351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
628 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
352 | |
629 | |
353 | /*****************************************************************************/ |
630 | /*****************************************************************************/ |
354 | |
631 | |
|
|
632 | /* set in reify when reification needed */ |
|
|
633 | #define EV_ANFD_REIFY 1 |
|
|
634 | |
|
|
635 | /* file descriptor info structure */ |
355 | typedef struct |
636 | typedef struct |
356 | { |
637 | { |
357 | WL head; |
638 | WL head; |
358 | unsigned char events; |
639 | unsigned char events; /* the events watched for */ |
|
|
640 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
641 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
359 | unsigned char reify; |
642 | unsigned char unused; |
|
|
643 | #if EV_USE_EPOLL |
|
|
644 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
645 | #endif |
360 | #if EV_SELECT_IS_WINSOCKET |
646 | #if EV_SELECT_IS_WINSOCKET |
361 | SOCKET handle; |
647 | SOCKET handle; |
362 | #endif |
648 | #endif |
363 | } ANFD; |
649 | } ANFD; |
364 | |
650 | |
|
|
651 | /* stores the pending event set for a given watcher */ |
365 | typedef struct |
652 | typedef struct |
366 | { |
653 | { |
367 | W w; |
654 | W w; |
368 | int events; |
655 | int events; /* the pending event set for the given watcher */ |
369 | } ANPENDING; |
656 | } ANPENDING; |
370 | |
657 | |
371 | #if EV_USE_INOTIFY |
658 | #if EV_USE_INOTIFY |
|
|
659 | /* hash table entry per inotify-id */ |
372 | typedef struct |
660 | typedef struct |
373 | { |
661 | { |
374 | WL head; |
662 | WL head; |
375 | } ANFS; |
663 | } ANFS; |
|
|
664 | #endif |
|
|
665 | |
|
|
666 | /* Heap Entry */ |
|
|
667 | #if EV_HEAP_CACHE_AT |
|
|
668 | /* a heap element */ |
|
|
669 | typedef struct { |
|
|
670 | ev_tstamp at; |
|
|
671 | WT w; |
|
|
672 | } ANHE; |
|
|
673 | |
|
|
674 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
675 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
676 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
677 | #else |
|
|
678 | /* a heap element */ |
|
|
679 | typedef WT ANHE; |
|
|
680 | |
|
|
681 | #define ANHE_w(he) (he) |
|
|
682 | #define ANHE_at(he) (he)->at |
|
|
683 | #define ANHE_at_cache(he) |
376 | #endif |
684 | #endif |
377 | |
685 | |
378 | #if EV_MULTIPLICITY |
686 | #if EV_MULTIPLICITY |
379 | |
687 | |
380 | struct ev_loop |
688 | struct ev_loop |
… | |
… | |
399 | |
707 | |
400 | static int ev_default_loop_ptr; |
708 | static int ev_default_loop_ptr; |
401 | |
709 | |
402 | #endif |
710 | #endif |
403 | |
711 | |
|
|
712 | #if EV_FEATURE_API |
|
|
713 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
714 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
715 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
716 | #else |
|
|
717 | # define EV_RELEASE_CB (void)0 |
|
|
718 | # define EV_ACQUIRE_CB (void)0 |
|
|
719 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | #define EVBREAK_RECURSE 0x80 |
|
|
723 | |
404 | /*****************************************************************************/ |
724 | /*****************************************************************************/ |
405 | |
725 | |
|
|
726 | #ifndef EV_HAVE_EV_TIME |
406 | ev_tstamp |
727 | ev_tstamp |
407 | ev_time (void) |
728 | ev_time (void) |
408 | { |
729 | { |
409 | #if EV_USE_REALTIME |
730 | #if EV_USE_REALTIME |
|
|
731 | if (expect_true (have_realtime)) |
|
|
732 | { |
410 | struct timespec ts; |
733 | struct timespec ts; |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
734 | clock_gettime (CLOCK_REALTIME, &ts); |
412 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
735 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
413 | #else |
736 | } |
|
|
737 | #endif |
|
|
738 | |
414 | struct timeval tv; |
739 | struct timeval tv; |
415 | gettimeofday (&tv, 0); |
740 | gettimeofday (&tv, 0); |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
741 | return tv.tv_sec + tv.tv_usec * 1e-6; |
417 | #endif |
|
|
418 | } |
742 | } |
|
|
743 | #endif |
419 | |
744 | |
420 | ev_tstamp inline_size |
745 | inline_size ev_tstamp |
421 | get_clock (void) |
746 | get_clock (void) |
422 | { |
747 | { |
423 | #if EV_USE_MONOTONIC |
748 | #if EV_USE_MONOTONIC |
424 | if (expect_true (have_monotonic)) |
749 | if (expect_true (have_monotonic)) |
425 | { |
750 | { |
… | |
… | |
446 | if (delay > 0.) |
771 | if (delay > 0.) |
447 | { |
772 | { |
448 | #if EV_USE_NANOSLEEP |
773 | #if EV_USE_NANOSLEEP |
449 | struct timespec ts; |
774 | struct timespec ts; |
450 | |
775 | |
451 | ts.tv_sec = (time_t)delay; |
776 | EV_TS_SET (ts, delay); |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
453 | |
|
|
454 | nanosleep (&ts, 0); |
777 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
778 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
779 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
780 | #else |
458 | struct timeval tv; |
781 | struct timeval tv; |
459 | |
782 | |
460 | tv.tv_sec = (time_t)delay; |
783 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
784 | /* something not guaranteed by newer posix versions, but guaranteed */ |
462 | |
785 | /* by older ones */ |
|
|
786 | EV_TV_SET (tv, delay); |
463 | select (0, 0, 0, 0, &tv); |
787 | select (0, 0, 0, 0, &tv); |
464 | #endif |
788 | #endif |
465 | } |
789 | } |
466 | } |
790 | } |
467 | |
791 | |
468 | /*****************************************************************************/ |
792 | /*****************************************************************************/ |
469 | |
793 | |
470 | int inline_size |
794 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
795 | |
|
|
796 | /* find a suitable new size for the given array, */ |
|
|
797 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
798 | inline_size int |
471 | array_nextsize (int elem, int cur, int cnt) |
799 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
800 | { |
473 | int ncur = cur + 1; |
801 | int ncur = cur + 1; |
474 | |
802 | |
475 | do |
803 | do |
476 | ncur <<= 1; |
804 | ncur <<= 1; |
477 | while (cnt > ncur); |
805 | while (cnt > ncur); |
478 | |
806 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
807 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
808 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
809 | { |
482 | ncur *= elem; |
810 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
811 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
812 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
813 | ncur /= elem; |
486 | } |
814 | } |
487 | |
815 | |
488 | return ncur; |
816 | return ncur; |
… | |
… | |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
820 | array_realloc (int elem, void *base, int *cur, int cnt) |
493 | { |
821 | { |
494 | *cur = array_nextsize (elem, *cur, cnt); |
822 | *cur = array_nextsize (elem, *cur, cnt); |
495 | return ev_realloc (base, elem * *cur); |
823 | return ev_realloc (base, elem * *cur); |
496 | } |
824 | } |
|
|
825 | |
|
|
826 | #define array_init_zero(base,count) \ |
|
|
827 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
497 | |
828 | |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
829 | #define array_needsize(type,base,cur,cnt,init) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
830 | if (expect_false ((cnt) > (cur))) \ |
500 | { \ |
831 | { \ |
501 | int ocur_ = (cur); \ |
832 | int ocur_ = (cur); \ |
… | |
… | |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
844 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
514 | } |
845 | } |
515 | #endif |
846 | #endif |
516 | |
847 | |
517 | #define array_free(stem, idx) \ |
848 | #define array_free(stem, idx) \ |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
849 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
519 | |
850 | |
520 | /*****************************************************************************/ |
851 | /*****************************************************************************/ |
|
|
852 | |
|
|
853 | /* dummy callback for pending events */ |
|
|
854 | static void noinline |
|
|
855 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
856 | { |
|
|
857 | } |
521 | |
858 | |
522 | void noinline |
859 | void noinline |
523 | ev_feed_event (EV_P_ void *w, int revents) |
860 | ev_feed_event (EV_P_ void *w, int revents) |
524 | { |
861 | { |
525 | W w_ = (W)w; |
862 | W w_ = (W)w; |
… | |
… | |
534 | pendings [pri][w_->pending - 1].w = w_; |
871 | pendings [pri][w_->pending - 1].w = w_; |
535 | pendings [pri][w_->pending - 1].events = revents; |
872 | pendings [pri][w_->pending - 1].events = revents; |
536 | } |
873 | } |
537 | } |
874 | } |
538 | |
875 | |
539 | void inline_speed |
876 | inline_speed void |
|
|
877 | feed_reverse (EV_P_ W w) |
|
|
878 | { |
|
|
879 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
880 | rfeeds [rfeedcnt++] = w; |
|
|
881 | } |
|
|
882 | |
|
|
883 | inline_size void |
|
|
884 | feed_reverse_done (EV_P_ int revents) |
|
|
885 | { |
|
|
886 | do |
|
|
887 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
888 | while (rfeedcnt); |
|
|
889 | } |
|
|
890 | |
|
|
891 | inline_speed void |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
892 | queue_events (EV_P_ W *events, int eventcnt, int type) |
541 | { |
893 | { |
542 | int i; |
894 | int i; |
543 | |
895 | |
544 | for (i = 0; i < eventcnt; ++i) |
896 | for (i = 0; i < eventcnt; ++i) |
545 | ev_feed_event (EV_A_ events [i], type); |
897 | ev_feed_event (EV_A_ events [i], type); |
546 | } |
898 | } |
547 | |
899 | |
548 | /*****************************************************************************/ |
900 | /*****************************************************************************/ |
549 | |
901 | |
550 | void inline_size |
902 | inline_speed void |
551 | anfds_init (ANFD *base, int count) |
|
|
552 | { |
|
|
553 | while (count--) |
|
|
554 | { |
|
|
555 | base->head = 0; |
|
|
556 | base->events = EV_NONE; |
|
|
557 | base->reify = 0; |
|
|
558 | |
|
|
559 | ++base; |
|
|
560 | } |
|
|
561 | } |
|
|
562 | |
|
|
563 | void inline_speed |
|
|
564 | fd_event (EV_P_ int fd, int revents) |
903 | fd_event_nocheck (EV_P_ int fd, int revents) |
565 | { |
904 | { |
566 | ANFD *anfd = anfds + fd; |
905 | ANFD *anfd = anfds + fd; |
567 | ev_io *w; |
906 | ev_io *w; |
568 | |
907 | |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
908 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
573 | if (ev) |
912 | if (ev) |
574 | ev_feed_event (EV_A_ (W)w, ev); |
913 | ev_feed_event (EV_A_ (W)w, ev); |
575 | } |
914 | } |
576 | } |
915 | } |
577 | |
916 | |
|
|
917 | /* do not submit kernel events for fds that have reify set */ |
|
|
918 | /* because that means they changed while we were polling for new events */ |
|
|
919 | inline_speed void |
|
|
920 | fd_event (EV_P_ int fd, int revents) |
|
|
921 | { |
|
|
922 | ANFD *anfd = anfds + fd; |
|
|
923 | |
|
|
924 | if (expect_true (!anfd->reify)) |
|
|
925 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
926 | } |
|
|
927 | |
578 | void |
928 | void |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
929 | ev_feed_fd_event (EV_P_ int fd, int revents) |
580 | { |
930 | { |
581 | if (fd >= 0 && fd < anfdmax) |
931 | if (fd >= 0 && fd < anfdmax) |
582 | fd_event (EV_A_ fd, revents); |
932 | fd_event_nocheck (EV_A_ fd, revents); |
583 | } |
933 | } |
584 | |
934 | |
585 | void inline_size |
935 | /* make sure the external fd watch events are in-sync */ |
|
|
936 | /* with the kernel/libev internal state */ |
|
|
937 | inline_size void |
586 | fd_reify (EV_P) |
938 | fd_reify (EV_P) |
587 | { |
939 | { |
588 | int i; |
940 | int i; |
589 | |
941 | |
590 | for (i = 0; i < fdchangecnt; ++i) |
942 | for (i = 0; i < fdchangecnt; ++i) |
591 | { |
943 | { |
592 | int fd = fdchanges [i]; |
944 | int fd = fdchanges [i]; |
593 | ANFD *anfd = anfds + fd; |
945 | ANFD *anfd = anfds + fd; |
594 | ev_io *w; |
946 | ev_io *w; |
595 | |
947 | |
596 | unsigned char events = 0; |
948 | unsigned char o_events = anfd->events; |
|
|
949 | unsigned char o_reify = anfd->reify; |
597 | |
950 | |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
951 | anfd->reify = 0; |
599 | events |= (unsigned char)w->events; |
|
|
600 | |
952 | |
601 | #if EV_SELECT_IS_WINSOCKET |
953 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
954 | if (o_reify & EV__IOFDSET) |
603 | { |
955 | { |
604 | unsigned long argp; |
956 | unsigned long arg; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
957 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
607 | #else |
|
|
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
|
|
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
958 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
611 | } |
959 | } |
612 | #endif |
960 | #endif |
613 | |
961 | |
|
|
962 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
614 | { |
963 | { |
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
|
|
618 | anfd->reify = 0; |
|
|
619 | anfd->events = events; |
964 | anfd->events = 0; |
620 | |
965 | |
621 | if (o_events != events || o_reify & EV_IOFDSET) |
966 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
967 | anfd->events |= (unsigned char)w->events; |
|
|
968 | |
|
|
969 | if (o_events != anfd->events) |
|
|
970 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
971 | } |
|
|
972 | |
|
|
973 | if (o_reify & EV__IOFDSET) |
622 | backend_modify (EV_A_ fd, o_events, events); |
974 | backend_modify (EV_A_ fd, o_events, anfd->events); |
623 | } |
|
|
624 | } |
975 | } |
625 | |
976 | |
626 | fdchangecnt = 0; |
977 | fdchangecnt = 0; |
627 | } |
978 | } |
628 | |
979 | |
629 | void inline_size |
980 | /* something about the given fd changed */ |
|
|
981 | inline_size void |
630 | fd_change (EV_P_ int fd, int flags) |
982 | fd_change (EV_P_ int fd, int flags) |
631 | { |
983 | { |
632 | unsigned char reify = anfds [fd].reify; |
984 | unsigned char reify = anfds [fd].reify; |
633 | anfds [fd].reify |= flags; |
985 | anfds [fd].reify |= flags; |
634 | |
986 | |
… | |
… | |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
990 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
639 | fdchanges [fdchangecnt - 1] = fd; |
991 | fdchanges [fdchangecnt - 1] = fd; |
640 | } |
992 | } |
641 | } |
993 | } |
642 | |
994 | |
643 | void inline_speed |
995 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
996 | inline_speed void |
644 | fd_kill (EV_P_ int fd) |
997 | fd_kill (EV_P_ int fd) |
645 | { |
998 | { |
646 | ev_io *w; |
999 | ev_io *w; |
647 | |
1000 | |
648 | while ((w = (ev_io *)anfds [fd].head)) |
1001 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
650 | ev_io_stop (EV_A_ w); |
1003 | ev_io_stop (EV_A_ w); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1004 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
652 | } |
1005 | } |
653 | } |
1006 | } |
654 | |
1007 | |
655 | int inline_size |
1008 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1009 | inline_size int |
656 | fd_valid (int fd) |
1010 | fd_valid (int fd) |
657 | { |
1011 | { |
658 | #ifdef _WIN32 |
1012 | #ifdef _WIN32 |
659 | return _get_osfhandle (fd) != -1; |
1013 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
660 | #else |
1014 | #else |
661 | return fcntl (fd, F_GETFD) != -1; |
1015 | return fcntl (fd, F_GETFD) != -1; |
662 | #endif |
1016 | #endif |
663 | } |
1017 | } |
664 | |
1018 | |
… | |
… | |
668 | { |
1022 | { |
669 | int fd; |
1023 | int fd; |
670 | |
1024 | |
671 | for (fd = 0; fd < anfdmax; ++fd) |
1025 | for (fd = 0; fd < anfdmax; ++fd) |
672 | if (anfds [fd].events) |
1026 | if (anfds [fd].events) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1027 | if (!fd_valid (fd) && errno == EBADF) |
674 | fd_kill (EV_A_ fd); |
1028 | fd_kill (EV_A_ fd); |
675 | } |
1029 | } |
676 | |
1030 | |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1031 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
678 | static void noinline |
1032 | static void noinline |
… | |
… | |
682 | |
1036 | |
683 | for (fd = anfdmax; fd--; ) |
1037 | for (fd = anfdmax; fd--; ) |
684 | if (anfds [fd].events) |
1038 | if (anfds [fd].events) |
685 | { |
1039 | { |
686 | fd_kill (EV_A_ fd); |
1040 | fd_kill (EV_A_ fd); |
687 | return; |
1041 | break; |
688 | } |
1042 | } |
689 | } |
1043 | } |
690 | |
1044 | |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1045 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
692 | static void noinline |
1046 | static void noinline |
… | |
… | |
696 | |
1050 | |
697 | for (fd = 0; fd < anfdmax; ++fd) |
1051 | for (fd = 0; fd < anfdmax; ++fd) |
698 | if (anfds [fd].events) |
1052 | if (anfds [fd].events) |
699 | { |
1053 | { |
700 | anfds [fd].events = 0; |
1054 | anfds [fd].events = 0; |
|
|
1055 | anfds [fd].emask = 0; |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1056 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
702 | } |
1057 | } |
703 | } |
1058 | } |
704 | |
1059 | |
705 | /*****************************************************************************/ |
1060 | /* used to prepare libev internal fd's */ |
706 | |
1061 | /* this is not fork-safe */ |
707 | void inline_speed |
1062 | inline_speed void |
708 | upheap (WT *heap, int k) |
|
|
709 | { |
|
|
710 | WT w = heap [k]; |
|
|
711 | |
|
|
712 | while (k) |
|
|
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
|
|
719 | heap [k] = heap [p]; |
|
|
720 | ((W)heap [k])->active = k + 1; |
|
|
721 | k = p; |
|
|
722 | } |
|
|
723 | |
|
|
724 | heap [k] = w; |
|
|
725 | ((W)heap [k])->active = k + 1; |
|
|
726 | } |
|
|
727 | |
|
|
728 | void inline_speed |
|
|
729 | downheap (WT *heap, int N, int k) |
|
|
730 | { |
|
|
731 | WT w = heap [k]; |
|
|
732 | |
|
|
733 | for (;;) |
|
|
734 | { |
|
|
735 | int c = (k << 1) + 1; |
|
|
736 | |
|
|
737 | if (c >= N) |
|
|
738 | break; |
|
|
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | heap [k] = heap [c]; |
|
|
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
|
|
749 | k = c; |
|
|
750 | } |
|
|
751 | |
|
|
752 | heap [k] = w; |
|
|
753 | ((W)heap [k])->active = k + 1; |
|
|
754 | } |
|
|
755 | |
|
|
756 | void inline_size |
|
|
757 | adjustheap (WT *heap, int N, int k) |
|
|
758 | { |
|
|
759 | upheap (heap, k); |
|
|
760 | downheap (heap, N, k); |
|
|
761 | } |
|
|
762 | |
|
|
763 | /*****************************************************************************/ |
|
|
764 | |
|
|
765 | typedef struct |
|
|
766 | { |
|
|
767 | WL head; |
|
|
768 | sig_atomic_t volatile gotsig; |
|
|
769 | } ANSIG; |
|
|
770 | |
|
|
771 | static ANSIG *signals; |
|
|
772 | static int signalmax; |
|
|
773 | |
|
|
774 | static int sigpipe [2]; |
|
|
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
|
|
778 | void inline_size |
|
|
779 | signals_init (ANSIG *base, int count) |
|
|
780 | { |
|
|
781 | while (count--) |
|
|
782 | { |
|
|
783 | base->head = 0; |
|
|
784 | base->gotsig = 0; |
|
|
785 | |
|
|
786 | ++base; |
|
|
787 | } |
|
|
788 | } |
|
|
789 | |
|
|
790 | static void |
|
|
791 | sighandler (int signum) |
|
|
792 | { |
|
|
793 | #if _WIN32 |
|
|
794 | signal (signum, sighandler); |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | signals [signum - 1].gotsig = 1; |
|
|
798 | |
|
|
799 | if (!gotsig) |
|
|
800 | { |
|
|
801 | int old_errno = errno; |
|
|
802 | gotsig = 1; |
|
|
803 | write (sigpipe [1], &signum, 1); |
|
|
804 | errno = old_errno; |
|
|
805 | } |
|
|
806 | } |
|
|
807 | |
|
|
808 | void noinline |
|
|
809 | ev_feed_signal_event (EV_P_ int signum) |
|
|
810 | { |
|
|
811 | WL w; |
|
|
812 | |
|
|
813 | #if EV_MULTIPLICITY |
|
|
814 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | --signum; |
|
|
818 | |
|
|
819 | if (signum < 0 || signum >= signalmax) |
|
|
820 | return; |
|
|
821 | |
|
|
822 | signals [signum].gotsig = 0; |
|
|
823 | |
|
|
824 | for (w = signals [signum].head; w; w = w->next) |
|
|
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
830 | { |
|
|
831 | int signum; |
|
|
832 | |
|
|
833 | read (sigpipe [0], &revents, 1); |
|
|
834 | gotsig = 0; |
|
|
835 | |
|
|
836 | for (signum = signalmax; signum--; ) |
|
|
837 | if (signals [signum].gotsig) |
|
|
838 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | void inline_speed |
|
|
842 | fd_intern (int fd) |
1063 | fd_intern (int fd) |
843 | { |
1064 | { |
844 | #ifdef _WIN32 |
1065 | #ifdef _WIN32 |
845 | int arg = 1; |
1066 | unsigned long arg = 1; |
846 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1067 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
847 | #else |
1068 | #else |
848 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1069 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1070 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
1071 | #endif |
851 | } |
1072 | } |
852 | |
1073 | |
|
|
1074 | /*****************************************************************************/ |
|
|
1075 | |
|
|
1076 | /* |
|
|
1077 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1078 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1079 | * the branching factor of the d-tree. |
|
|
1080 | */ |
|
|
1081 | |
|
|
1082 | /* |
|
|
1083 | * at the moment we allow libev the luxury of two heaps, |
|
|
1084 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1085 | * which is more cache-efficient. |
|
|
1086 | * the difference is about 5% with 50000+ watchers. |
|
|
1087 | */ |
|
|
1088 | #if EV_USE_4HEAP |
|
|
1089 | |
|
|
1090 | #define DHEAP 4 |
|
|
1091 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1092 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1093 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1094 | |
|
|
1095 | /* away from the root */ |
|
|
1096 | inline_speed void |
|
|
1097 | downheap (ANHE *heap, int N, int k) |
|
|
1098 | { |
|
|
1099 | ANHE he = heap [k]; |
|
|
1100 | ANHE *E = heap + N + HEAP0; |
|
|
1101 | |
|
|
1102 | for (;;) |
|
|
1103 | { |
|
|
1104 | ev_tstamp minat; |
|
|
1105 | ANHE *minpos; |
|
|
1106 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1107 | |
|
|
1108 | /* find minimum child */ |
|
|
1109 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1110 | { |
|
|
1111 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1112 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1113 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1114 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1115 | } |
|
|
1116 | else if (pos < E) |
|
|
1117 | { |
|
|
1118 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1119 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1120 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1121 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1122 | } |
|
|
1123 | else |
|
|
1124 | break; |
|
|
1125 | |
|
|
1126 | if (ANHE_at (he) <= minat) |
|
|
1127 | break; |
|
|
1128 | |
|
|
1129 | heap [k] = *minpos; |
|
|
1130 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1131 | |
|
|
1132 | k = minpos - heap; |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | heap [k] = he; |
|
|
1136 | ev_active (ANHE_w (he)) = k; |
|
|
1137 | } |
|
|
1138 | |
|
|
1139 | #else /* 4HEAP */ |
|
|
1140 | |
|
|
1141 | #define HEAP0 1 |
|
|
1142 | #define HPARENT(k) ((k) >> 1) |
|
|
1143 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1144 | |
|
|
1145 | /* away from the root */ |
|
|
1146 | inline_speed void |
|
|
1147 | downheap (ANHE *heap, int N, int k) |
|
|
1148 | { |
|
|
1149 | ANHE he = heap [k]; |
|
|
1150 | |
|
|
1151 | for (;;) |
|
|
1152 | { |
|
|
1153 | int c = k << 1; |
|
|
1154 | |
|
|
1155 | if (c >= N + HEAP0) |
|
|
1156 | break; |
|
|
1157 | |
|
|
1158 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1159 | ? 1 : 0; |
|
|
1160 | |
|
|
1161 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1162 | break; |
|
|
1163 | |
|
|
1164 | heap [k] = heap [c]; |
|
|
1165 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1166 | |
|
|
1167 | k = c; |
|
|
1168 | } |
|
|
1169 | |
|
|
1170 | heap [k] = he; |
|
|
1171 | ev_active (ANHE_w (he)) = k; |
|
|
1172 | } |
|
|
1173 | #endif |
|
|
1174 | |
|
|
1175 | /* towards the root */ |
|
|
1176 | inline_speed void |
|
|
1177 | upheap (ANHE *heap, int k) |
|
|
1178 | { |
|
|
1179 | ANHE he = heap [k]; |
|
|
1180 | |
|
|
1181 | for (;;) |
|
|
1182 | { |
|
|
1183 | int p = HPARENT (k); |
|
|
1184 | |
|
|
1185 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1186 | break; |
|
|
1187 | |
|
|
1188 | heap [k] = heap [p]; |
|
|
1189 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1190 | k = p; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | heap [k] = he; |
|
|
1194 | ev_active (ANHE_w (he)) = k; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | /* move an element suitably so it is in a correct place */ |
|
|
1198 | inline_size void |
|
|
1199 | adjustheap (ANHE *heap, int N, int k) |
|
|
1200 | { |
|
|
1201 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1202 | upheap (heap, k); |
|
|
1203 | else |
|
|
1204 | downheap (heap, N, k); |
|
|
1205 | } |
|
|
1206 | |
|
|
1207 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1208 | inline_size void |
|
|
1209 | reheap (ANHE *heap, int N) |
|
|
1210 | { |
|
|
1211 | int i; |
|
|
1212 | |
|
|
1213 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1214 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1215 | for (i = 0; i < N; ++i) |
|
|
1216 | upheap (heap, i + HEAP0); |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | /*****************************************************************************/ |
|
|
1220 | |
|
|
1221 | /* associate signal watchers to a signal signal */ |
|
|
1222 | typedef struct |
|
|
1223 | { |
|
|
1224 | EV_ATOMIC_T pending; |
|
|
1225 | #if EV_MULTIPLICITY |
|
|
1226 | EV_P; |
|
|
1227 | #endif |
|
|
1228 | WL head; |
|
|
1229 | } ANSIG; |
|
|
1230 | |
|
|
1231 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1232 | |
|
|
1233 | /*****************************************************************************/ |
|
|
1234 | |
|
|
1235 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1236 | |
853 | static void noinline |
1237 | static void noinline |
854 | siginit (EV_P) |
1238 | evpipe_init (EV_P) |
855 | { |
1239 | { |
|
|
1240 | if (!ev_is_active (&pipe_w)) |
|
|
1241 | { |
|
|
1242 | # if EV_USE_EVENTFD |
|
|
1243 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1244 | if (evfd < 0 && errno == EINVAL) |
|
|
1245 | evfd = eventfd (0, 0); |
|
|
1246 | |
|
|
1247 | if (evfd >= 0) |
|
|
1248 | { |
|
|
1249 | evpipe [0] = -1; |
|
|
1250 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1251 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1252 | } |
|
|
1253 | else |
|
|
1254 | # endif |
|
|
1255 | { |
|
|
1256 | while (pipe (evpipe)) |
|
|
1257 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1258 | |
856 | fd_intern (sigpipe [0]); |
1259 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
1260 | fd_intern (evpipe [1]); |
|
|
1261 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1262 | } |
858 | |
1263 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
1264 | ev_io_start (EV_A_ &pipe_w); |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1265 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1266 | } |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | inline_size void |
|
|
1270 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1271 | { |
|
|
1272 | if (!*flag) |
|
|
1273 | { |
|
|
1274 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1275 | char dummy; |
|
|
1276 | |
|
|
1277 | *flag = 1; |
|
|
1278 | |
|
|
1279 | #if EV_USE_EVENTFD |
|
|
1280 | if (evfd >= 0) |
|
|
1281 | { |
|
|
1282 | uint64_t counter = 1; |
|
|
1283 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1284 | } |
|
|
1285 | else |
|
|
1286 | #endif |
|
|
1287 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1288 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1289 | /* so when you think this write should be a send instead, please find out */ |
|
|
1290 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1291 | /* tell me. thank you. */ |
|
|
1292 | write (evpipe [1], &dummy, 1); |
|
|
1293 | |
|
|
1294 | errno = old_errno; |
|
|
1295 | } |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | /* called whenever the libev signal pipe */ |
|
|
1299 | /* got some events (signal, async) */ |
|
|
1300 | static void |
|
|
1301 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1302 | { |
|
|
1303 | int i; |
|
|
1304 | |
|
|
1305 | #if EV_USE_EVENTFD |
|
|
1306 | if (evfd >= 0) |
|
|
1307 | { |
|
|
1308 | uint64_t counter; |
|
|
1309 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1310 | } |
|
|
1311 | else |
|
|
1312 | #endif |
|
|
1313 | { |
|
|
1314 | char dummy; |
|
|
1315 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
|
|
1316 | read (evpipe [0], &dummy, 1); |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | if (sig_pending) |
|
|
1320 | { |
|
|
1321 | sig_pending = 0; |
|
|
1322 | |
|
|
1323 | for (i = EV_NSIG - 1; i--; ) |
|
|
1324 | if (expect_false (signals [i].pending)) |
|
|
1325 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1326 | } |
|
|
1327 | |
|
|
1328 | #if EV_ASYNC_ENABLE |
|
|
1329 | if (async_pending) |
|
|
1330 | { |
|
|
1331 | async_pending = 0; |
|
|
1332 | |
|
|
1333 | for (i = asynccnt; i--; ) |
|
|
1334 | if (asyncs [i]->sent) |
|
|
1335 | { |
|
|
1336 | asyncs [i]->sent = 0; |
|
|
1337 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1338 | } |
|
|
1339 | } |
|
|
1340 | #endif |
862 | } |
1341 | } |
863 | |
1342 | |
864 | /*****************************************************************************/ |
1343 | /*****************************************************************************/ |
865 | |
1344 | |
|
|
1345 | static void |
|
|
1346 | ev_sighandler (int signum) |
|
|
1347 | { |
|
|
1348 | #if EV_MULTIPLICITY |
|
|
1349 | EV_P = signals [signum - 1].loop; |
|
|
1350 | #endif |
|
|
1351 | |
|
|
1352 | #ifdef _WIN32 |
|
|
1353 | signal (signum, ev_sighandler); |
|
|
1354 | #endif |
|
|
1355 | |
|
|
1356 | signals [signum - 1].pending = 1; |
|
|
1357 | evpipe_write (EV_A_ &sig_pending); |
|
|
1358 | } |
|
|
1359 | |
|
|
1360 | void noinline |
|
|
1361 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1362 | { |
|
|
1363 | WL w; |
|
|
1364 | |
|
|
1365 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1366 | return; |
|
|
1367 | |
|
|
1368 | --signum; |
|
|
1369 | |
|
|
1370 | #if EV_MULTIPLICITY |
|
|
1371 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1372 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1373 | |
|
|
1374 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1375 | return; |
|
|
1376 | #endif |
|
|
1377 | |
|
|
1378 | signals [signum].pending = 0; |
|
|
1379 | |
|
|
1380 | for (w = signals [signum].head; w; w = w->next) |
|
|
1381 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | #if EV_USE_SIGNALFD |
|
|
1385 | static void |
|
|
1386 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1387 | { |
|
|
1388 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1389 | |
|
|
1390 | for (;;) |
|
|
1391 | { |
|
|
1392 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1393 | |
|
|
1394 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1395 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1396 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1397 | |
|
|
1398 | if (res < (ssize_t)sizeof (si)) |
|
|
1399 | break; |
|
|
1400 | } |
|
|
1401 | } |
|
|
1402 | #endif |
|
|
1403 | |
|
|
1404 | #endif |
|
|
1405 | |
|
|
1406 | /*****************************************************************************/ |
|
|
1407 | |
|
|
1408 | #if EV_CHILD_ENABLE |
866 | static WL childs [EV_PID_HASHSIZE]; |
1409 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
1410 | |
868 | #ifndef _WIN32 |
|
|
869 | |
|
|
870 | static ev_signal childev; |
1411 | static ev_signal childev; |
871 | |
1412 | |
872 | void inline_speed |
1413 | #ifndef WIFCONTINUED |
|
|
1414 | # define WIFCONTINUED(status) 0 |
|
|
1415 | #endif |
|
|
1416 | |
|
|
1417 | /* handle a single child status event */ |
|
|
1418 | inline_speed void |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1419 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1420 | { |
875 | ev_child *w; |
1421 | ev_child *w; |
|
|
1422 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1423 | |
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1424 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1425 | { |
878 | if (w->pid == pid || !w->pid) |
1426 | if ((w->pid == pid || !w->pid) |
|
|
1427 | && (!traced || (w->flags & 1))) |
879 | { |
1428 | { |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1429 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
881 | w->rpid = pid; |
1430 | w->rpid = pid; |
882 | w->rstatus = status; |
1431 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1432 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1433 | } |
|
|
1434 | } |
885 | } |
1435 | } |
886 | |
1436 | |
887 | #ifndef WCONTINUED |
1437 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1438 | # define WCONTINUED 0 |
889 | #endif |
1439 | #endif |
890 | |
1440 | |
|
|
1441 | /* called on sigchld etc., calls waitpid */ |
891 | static void |
1442 | static void |
892 | childcb (EV_P_ ev_signal *sw, int revents) |
1443 | childcb (EV_P_ ev_signal *sw, int revents) |
893 | { |
1444 | { |
894 | int pid, status; |
1445 | int pid, status; |
895 | |
1446 | |
… | |
… | |
898 | if (!WCONTINUED |
1449 | if (!WCONTINUED |
899 | || errno != EINVAL |
1450 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1451 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1452 | return; |
902 | |
1453 | |
903 | /* make sure we are called again until all childs have been reaped */ |
1454 | /* make sure we are called again until all children have been reaped */ |
904 | /* we need to do it this way so that the callback gets called before we continue */ |
1455 | /* we need to do it this way so that the callback gets called before we continue */ |
905 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1456 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1457 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1458 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1459 | if ((EV_PID_HASHSIZE) > 1) |
909 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1460 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1461 | } |
911 | |
1462 | |
912 | #endif |
1463 | #endif |
913 | |
1464 | |
914 | /*****************************************************************************/ |
1465 | /*****************************************************************************/ |
… | |
… | |
976 | /* kqueue is borked on everything but netbsd apparently */ |
1527 | /* kqueue is borked on everything but netbsd apparently */ |
977 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1528 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
978 | flags &= ~EVBACKEND_KQUEUE; |
1529 | flags &= ~EVBACKEND_KQUEUE; |
979 | #endif |
1530 | #endif |
980 | #ifdef __APPLE__ |
1531 | #ifdef __APPLE__ |
981 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1532 | /* only select works correctly on that "unix-certified" platform */ |
982 | flags &= ~EVBACKEND_POLL; |
1533 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1534 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1535 | #endif |
|
|
1536 | #ifdef __FreeBSD__ |
|
|
1537 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
983 | #endif |
1538 | #endif |
984 | |
1539 | |
985 | return flags; |
1540 | return flags; |
986 | } |
1541 | } |
987 | |
1542 | |
… | |
… | |
1001 | ev_backend (EV_P) |
1556 | ev_backend (EV_P) |
1002 | { |
1557 | { |
1003 | return backend; |
1558 | return backend; |
1004 | } |
1559 | } |
1005 | |
1560 | |
|
|
1561 | #if EV_FEATURE_API |
1006 | unsigned int |
1562 | unsigned int |
1007 | ev_loop_count (EV_P) |
1563 | ev_iteration (EV_P) |
1008 | { |
1564 | { |
1009 | return loop_count; |
1565 | return loop_count; |
1010 | } |
1566 | } |
1011 | |
1567 | |
|
|
1568 | unsigned int |
|
|
1569 | ev_depth (EV_P) |
|
|
1570 | { |
|
|
1571 | return loop_depth; |
|
|
1572 | } |
|
|
1573 | |
1012 | void |
1574 | void |
1013 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1575 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1014 | { |
1576 | { |
1015 | io_blocktime = interval; |
1577 | io_blocktime = interval; |
1016 | } |
1578 | } |
… | |
… | |
1019 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1581 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1020 | { |
1582 | { |
1021 | timeout_blocktime = interval; |
1583 | timeout_blocktime = interval; |
1022 | } |
1584 | } |
1023 | |
1585 | |
|
|
1586 | void |
|
|
1587 | ev_set_userdata (EV_P_ void *data) |
|
|
1588 | { |
|
|
1589 | userdata = data; |
|
|
1590 | } |
|
|
1591 | |
|
|
1592 | void * |
|
|
1593 | ev_userdata (EV_P) |
|
|
1594 | { |
|
|
1595 | return userdata; |
|
|
1596 | } |
|
|
1597 | |
|
|
1598 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1599 | { |
|
|
1600 | invoke_cb = invoke_pending_cb; |
|
|
1601 | } |
|
|
1602 | |
|
|
1603 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1604 | { |
|
|
1605 | release_cb = release; |
|
|
1606 | acquire_cb = acquire; |
|
|
1607 | } |
|
|
1608 | #endif |
|
|
1609 | |
|
|
1610 | /* initialise a loop structure, must be zero-initialised */ |
1024 | static void noinline |
1611 | static void noinline |
1025 | loop_init (EV_P_ unsigned int flags) |
1612 | loop_init (EV_P_ unsigned int flags) |
1026 | { |
1613 | { |
1027 | if (!backend) |
1614 | if (!backend) |
1028 | { |
1615 | { |
|
|
1616 | #if EV_USE_REALTIME |
|
|
1617 | if (!have_realtime) |
|
|
1618 | { |
|
|
1619 | struct timespec ts; |
|
|
1620 | |
|
|
1621 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1622 | have_realtime = 1; |
|
|
1623 | } |
|
|
1624 | #endif |
|
|
1625 | |
1029 | #if EV_USE_MONOTONIC |
1626 | #if EV_USE_MONOTONIC |
|
|
1627 | if (!have_monotonic) |
1030 | { |
1628 | { |
1031 | struct timespec ts; |
1629 | struct timespec ts; |
|
|
1630 | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1631 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1632 | have_monotonic = 1; |
1034 | } |
1633 | } |
1035 | #endif |
1634 | #endif |
1036 | |
|
|
1037 | ev_rt_now = ev_time (); |
|
|
1038 | mn_now = get_clock (); |
|
|
1039 | now_floor = mn_now; |
|
|
1040 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1041 | |
|
|
1042 | io_blocktime = 0.; |
|
|
1043 | timeout_blocktime = 0.; |
|
|
1044 | |
1635 | |
1045 | /* pid check not overridable via env */ |
1636 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1637 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1638 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1639 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1642 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1643 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1644 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1645 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1646 | |
|
|
1647 | ev_rt_now = ev_time (); |
|
|
1648 | mn_now = get_clock (); |
|
|
1649 | now_floor = mn_now; |
|
|
1650 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1651 | #if EV_FEATURE_API |
|
|
1652 | invoke_cb = ev_invoke_pending; |
|
|
1653 | #endif |
|
|
1654 | |
|
|
1655 | io_blocktime = 0.; |
|
|
1656 | timeout_blocktime = 0.; |
|
|
1657 | backend = 0; |
|
|
1658 | backend_fd = -1; |
|
|
1659 | sig_pending = 0; |
|
|
1660 | #if EV_ASYNC_ENABLE |
|
|
1661 | async_pending = 0; |
|
|
1662 | #endif |
|
|
1663 | #if EV_USE_INOTIFY |
|
|
1664 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1665 | #endif |
|
|
1666 | #if EV_USE_SIGNALFD |
|
|
1667 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1668 | #endif |
|
|
1669 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1670 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1671 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1672 | |
1065 | #if EV_USE_PORT |
1673 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1674 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1675 | #endif |
1068 | #if EV_USE_KQUEUE |
1676 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1684 | #endif |
1077 | #if EV_USE_SELECT |
1685 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1686 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1687 | #endif |
1080 | |
1688 | |
|
|
1689 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1690 | |
|
|
1691 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1081 | ev_init (&sigev, sigcb); |
1692 | ev_init (&pipe_w, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1693 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1694 | #endif |
1083 | } |
1695 | } |
1084 | } |
1696 | } |
1085 | |
1697 | |
|
|
1698 | /* free up a loop structure */ |
1086 | static void noinline |
1699 | static void noinline |
1087 | loop_destroy (EV_P) |
1700 | loop_destroy (EV_P) |
1088 | { |
1701 | { |
1089 | int i; |
1702 | int i; |
|
|
1703 | |
|
|
1704 | if (ev_is_active (&pipe_w)) |
|
|
1705 | { |
|
|
1706 | /*ev_ref (EV_A);*/ |
|
|
1707 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1708 | |
|
|
1709 | #if EV_USE_EVENTFD |
|
|
1710 | if (evfd >= 0) |
|
|
1711 | close (evfd); |
|
|
1712 | #endif |
|
|
1713 | |
|
|
1714 | if (evpipe [0] >= 0) |
|
|
1715 | { |
|
|
1716 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1717 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1718 | } |
|
|
1719 | } |
|
|
1720 | |
|
|
1721 | #if EV_USE_SIGNALFD |
|
|
1722 | if (ev_is_active (&sigfd_w)) |
|
|
1723 | close (sigfd); |
|
|
1724 | #endif |
1090 | |
1725 | |
1091 | #if EV_USE_INOTIFY |
1726 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1727 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1728 | close (fs_fd); |
1094 | #endif |
1729 | #endif |
… | |
… | |
1118 | #if EV_IDLE_ENABLE |
1753 | #if EV_IDLE_ENABLE |
1119 | array_free (idle, [i]); |
1754 | array_free (idle, [i]); |
1120 | #endif |
1755 | #endif |
1121 | } |
1756 | } |
1122 | |
1757 | |
1123 | ev_free (anfds); anfdmax = 0; |
1758 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1124 | |
1759 | |
1125 | /* have to use the microsoft-never-gets-it-right macro */ |
1760 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1761 | array_free (rfeed, EMPTY); |
1126 | array_free (fdchange, EMPTY); |
1762 | array_free (fdchange, EMPTY); |
1127 | array_free (timer, EMPTY); |
1763 | array_free (timer, EMPTY); |
1128 | #if EV_PERIODIC_ENABLE |
1764 | #if EV_PERIODIC_ENABLE |
1129 | array_free (periodic, EMPTY); |
1765 | array_free (periodic, EMPTY); |
1130 | #endif |
1766 | #endif |
1131 | #if EV_FORK_ENABLE |
1767 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1768 | array_free (fork, EMPTY); |
1133 | #endif |
1769 | #endif |
1134 | array_free (prepare, EMPTY); |
1770 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1771 | array_free (check, EMPTY); |
|
|
1772 | #if EV_ASYNC_ENABLE |
|
|
1773 | array_free (async, EMPTY); |
|
|
1774 | #endif |
1136 | |
1775 | |
1137 | backend = 0; |
1776 | backend = 0; |
1138 | } |
1777 | } |
1139 | |
1778 | |
|
|
1779 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1780 | inline_size void infy_fork (EV_P); |
|
|
1781 | #endif |
1141 | |
1782 | |
1142 | void inline_size |
1783 | inline_size void |
1143 | loop_fork (EV_P) |
1784 | loop_fork (EV_P) |
1144 | { |
1785 | { |
1145 | #if EV_USE_PORT |
1786 | #if EV_USE_PORT |
1146 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1787 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1147 | #endif |
1788 | #endif |
… | |
… | |
1153 | #endif |
1794 | #endif |
1154 | #if EV_USE_INOTIFY |
1795 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1796 | infy_fork (EV_A); |
1156 | #endif |
1797 | #endif |
1157 | |
1798 | |
1158 | if (ev_is_active (&sigev)) |
1799 | if (ev_is_active (&pipe_w)) |
1159 | { |
1800 | { |
1160 | /* default loop */ |
1801 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1802 | /* while we modify the fd vars */ |
|
|
1803 | sig_pending = 1; |
|
|
1804 | #if EV_ASYNC_ENABLE |
|
|
1805 | async_pending = 1; |
|
|
1806 | #endif |
1161 | |
1807 | |
1162 | ev_ref (EV_A); |
1808 | ev_ref (EV_A); |
1163 | ev_io_stop (EV_A_ &sigev); |
1809 | ev_io_stop (EV_A_ &pipe_w); |
1164 | close (sigpipe [0]); |
|
|
1165 | close (sigpipe [1]); |
|
|
1166 | |
1810 | |
1167 | while (pipe (sigpipe)) |
1811 | #if EV_USE_EVENTFD |
1168 | syserr ("(libev) error creating pipe"); |
1812 | if (evfd >= 0) |
|
|
1813 | close (evfd); |
|
|
1814 | #endif |
1169 | |
1815 | |
|
|
1816 | if (evpipe [0] >= 0) |
|
|
1817 | { |
|
|
1818 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1819 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1170 | siginit (EV_A); |
1823 | evpipe_init (EV_A); |
|
|
1824 | /* now iterate over everything, in case we missed something */ |
|
|
1825 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1826 | #endif |
1171 | } |
1827 | } |
1172 | |
1828 | |
1173 | postfork = 0; |
1829 | postfork = 0; |
1174 | } |
1830 | } |
1175 | |
1831 | |
1176 | #if EV_MULTIPLICITY |
1832 | #if EV_MULTIPLICITY |
|
|
1833 | |
1177 | struct ev_loop * |
1834 | struct ev_loop * |
1178 | ev_loop_new (unsigned int flags) |
1835 | ev_loop_new (unsigned int flags) |
1179 | { |
1836 | { |
1180 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1837 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1181 | |
1838 | |
1182 | memset (loop, 0, sizeof (struct ev_loop)); |
1839 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1183 | |
|
|
1184 | loop_init (EV_A_ flags); |
1840 | loop_init (EV_A_ flags); |
1185 | |
1841 | |
1186 | if (ev_backend (EV_A)) |
1842 | if (ev_backend (EV_A)) |
1187 | return loop; |
1843 | return EV_A; |
1188 | |
1844 | |
1189 | return 0; |
1845 | return 0; |
1190 | } |
1846 | } |
1191 | |
1847 | |
1192 | void |
1848 | void |
… | |
… | |
1197 | } |
1853 | } |
1198 | |
1854 | |
1199 | void |
1855 | void |
1200 | ev_loop_fork (EV_P) |
1856 | ev_loop_fork (EV_P) |
1201 | { |
1857 | { |
1202 | postfork = 1; |
1858 | postfork = 1; /* must be in line with ev_default_fork */ |
1203 | } |
1859 | } |
|
|
1860 | #endif /* multiplicity */ |
1204 | |
1861 | |
|
|
1862 | #if EV_VERIFY |
|
|
1863 | static void noinline |
|
|
1864 | verify_watcher (EV_P_ W w) |
|
|
1865 | { |
|
|
1866 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1867 | |
|
|
1868 | if (w->pending) |
|
|
1869 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | static void noinline |
|
|
1873 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1874 | { |
|
|
1875 | int i; |
|
|
1876 | |
|
|
1877 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1878 | { |
|
|
1879 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1880 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1881 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1882 | |
|
|
1883 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1884 | } |
|
|
1885 | } |
|
|
1886 | |
|
|
1887 | static void noinline |
|
|
1888 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1889 | { |
|
|
1890 | while (cnt--) |
|
|
1891 | { |
|
|
1892 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1893 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1894 | } |
|
|
1895 | } |
|
|
1896 | #endif |
|
|
1897 | |
|
|
1898 | #if EV_FEATURE_API |
|
|
1899 | void |
|
|
1900 | ev_verify (EV_P) |
|
|
1901 | { |
|
|
1902 | #if EV_VERIFY |
|
|
1903 | int i; |
|
|
1904 | WL w; |
|
|
1905 | |
|
|
1906 | assert (activecnt >= -1); |
|
|
1907 | |
|
|
1908 | assert (fdchangemax >= fdchangecnt); |
|
|
1909 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1910 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1911 | |
|
|
1912 | assert (anfdmax >= 0); |
|
|
1913 | for (i = 0; i < anfdmax; ++i) |
|
|
1914 | for (w = anfds [i].head; w; w = w->next) |
|
|
1915 | { |
|
|
1916 | verify_watcher (EV_A_ (W)w); |
|
|
1917 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1918 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1919 | } |
|
|
1920 | |
|
|
1921 | assert (timermax >= timercnt); |
|
|
1922 | verify_heap (EV_A_ timers, timercnt); |
|
|
1923 | |
|
|
1924 | #if EV_PERIODIC_ENABLE |
|
|
1925 | assert (periodicmax >= periodiccnt); |
|
|
1926 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1927 | #endif |
|
|
1928 | |
|
|
1929 | for (i = NUMPRI; i--; ) |
|
|
1930 | { |
|
|
1931 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1932 | #if EV_IDLE_ENABLE |
|
|
1933 | assert (idleall >= 0); |
|
|
1934 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1935 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1936 | #endif |
|
|
1937 | } |
|
|
1938 | |
|
|
1939 | #if EV_FORK_ENABLE |
|
|
1940 | assert (forkmax >= forkcnt); |
|
|
1941 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1942 | #endif |
|
|
1943 | |
|
|
1944 | #if EV_ASYNC_ENABLE |
|
|
1945 | assert (asyncmax >= asynccnt); |
|
|
1946 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1947 | #endif |
|
|
1948 | |
|
|
1949 | #if EV_PREPARE_ENABLE |
|
|
1950 | assert (preparemax >= preparecnt); |
|
|
1951 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1952 | #endif |
|
|
1953 | |
|
|
1954 | #if EV_CHECK_ENABLE |
|
|
1955 | assert (checkmax >= checkcnt); |
|
|
1956 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1957 | #endif |
|
|
1958 | |
|
|
1959 | # if 0 |
|
|
1960 | #if EV_CHILD_ENABLE |
|
|
1961 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1962 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1963 | #endif |
|
|
1964 | # endif |
|
|
1965 | #endif |
|
|
1966 | } |
1205 | #endif |
1967 | #endif |
1206 | |
1968 | |
1207 | #if EV_MULTIPLICITY |
1969 | #if EV_MULTIPLICITY |
1208 | struct ev_loop * |
1970 | struct ev_loop * |
1209 | ev_default_loop_init (unsigned int flags) |
1971 | ev_default_loop_init (unsigned int flags) |
1210 | #else |
1972 | #else |
1211 | int |
1973 | int |
1212 | ev_default_loop (unsigned int flags) |
1974 | ev_default_loop (unsigned int flags) |
1213 | #endif |
1975 | #endif |
1214 | { |
1976 | { |
1215 | if (sigpipe [0] == sigpipe [1]) |
|
|
1216 | if (pipe (sigpipe)) |
|
|
1217 | return 0; |
|
|
1218 | |
|
|
1219 | if (!ev_default_loop_ptr) |
1977 | if (!ev_default_loop_ptr) |
1220 | { |
1978 | { |
1221 | #if EV_MULTIPLICITY |
1979 | #if EV_MULTIPLICITY |
1222 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1980 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1223 | #else |
1981 | #else |
1224 | ev_default_loop_ptr = 1; |
1982 | ev_default_loop_ptr = 1; |
1225 | #endif |
1983 | #endif |
1226 | |
1984 | |
1227 | loop_init (EV_A_ flags); |
1985 | loop_init (EV_A_ flags); |
1228 | |
1986 | |
1229 | if (ev_backend (EV_A)) |
1987 | if (ev_backend (EV_A)) |
1230 | { |
1988 | { |
1231 | siginit (EV_A); |
1989 | #if EV_CHILD_ENABLE |
1232 | |
|
|
1233 | #ifndef _WIN32 |
|
|
1234 | ev_signal_init (&childev, childcb, SIGCHLD); |
1990 | ev_signal_init (&childev, childcb, SIGCHLD); |
1235 | ev_set_priority (&childev, EV_MAXPRI); |
1991 | ev_set_priority (&childev, EV_MAXPRI); |
1236 | ev_signal_start (EV_A_ &childev); |
1992 | ev_signal_start (EV_A_ &childev); |
1237 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1993 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1238 | #endif |
1994 | #endif |
… | |
… | |
1246 | |
2002 | |
1247 | void |
2003 | void |
1248 | ev_default_destroy (void) |
2004 | ev_default_destroy (void) |
1249 | { |
2005 | { |
1250 | #if EV_MULTIPLICITY |
2006 | #if EV_MULTIPLICITY |
1251 | struct ev_loop *loop = ev_default_loop_ptr; |
2007 | EV_P = ev_default_loop_ptr; |
1252 | #endif |
2008 | #endif |
1253 | |
2009 | |
1254 | #ifndef _WIN32 |
2010 | ev_default_loop_ptr = 0; |
|
|
2011 | |
|
|
2012 | #if EV_CHILD_ENABLE |
1255 | ev_ref (EV_A); /* child watcher */ |
2013 | ev_ref (EV_A); /* child watcher */ |
1256 | ev_signal_stop (EV_A_ &childev); |
2014 | ev_signal_stop (EV_A_ &childev); |
1257 | #endif |
2015 | #endif |
1258 | |
2016 | |
1259 | ev_ref (EV_A); /* signal watcher */ |
|
|
1260 | ev_io_stop (EV_A_ &sigev); |
|
|
1261 | |
|
|
1262 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1263 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1264 | |
|
|
1265 | loop_destroy (EV_A); |
2017 | loop_destroy (EV_A); |
1266 | } |
2018 | } |
1267 | |
2019 | |
1268 | void |
2020 | void |
1269 | ev_default_fork (void) |
2021 | ev_default_fork (void) |
1270 | { |
2022 | { |
1271 | #if EV_MULTIPLICITY |
2023 | #if EV_MULTIPLICITY |
1272 | struct ev_loop *loop = ev_default_loop_ptr; |
2024 | EV_P = ev_default_loop_ptr; |
1273 | #endif |
2025 | #endif |
1274 | |
2026 | |
1275 | if (backend) |
2027 | postfork = 1; /* must be in line with ev_loop_fork */ |
1276 | postfork = 1; |
|
|
1277 | } |
2028 | } |
1278 | |
2029 | |
1279 | /*****************************************************************************/ |
2030 | /*****************************************************************************/ |
1280 | |
2031 | |
1281 | void |
2032 | void |
1282 | ev_invoke (EV_P_ void *w, int revents) |
2033 | ev_invoke (EV_P_ void *w, int revents) |
1283 | { |
2034 | { |
1284 | EV_CB_INVOKE ((W)w, revents); |
2035 | EV_CB_INVOKE ((W)w, revents); |
1285 | } |
2036 | } |
1286 | |
2037 | |
1287 | void inline_speed |
2038 | unsigned int |
1288 | call_pending (EV_P) |
2039 | ev_pending_count (EV_P) |
|
|
2040 | { |
|
|
2041 | int pri; |
|
|
2042 | unsigned int count = 0; |
|
|
2043 | |
|
|
2044 | for (pri = NUMPRI; pri--; ) |
|
|
2045 | count += pendingcnt [pri]; |
|
|
2046 | |
|
|
2047 | return count; |
|
|
2048 | } |
|
|
2049 | |
|
|
2050 | void noinline |
|
|
2051 | ev_invoke_pending (EV_P) |
1289 | { |
2052 | { |
1290 | int pri; |
2053 | int pri; |
1291 | |
2054 | |
1292 | for (pri = NUMPRI; pri--; ) |
2055 | for (pri = NUMPRI; pri--; ) |
1293 | while (pendingcnt [pri]) |
2056 | while (pendingcnt [pri]) |
1294 | { |
2057 | { |
1295 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2058 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1296 | |
2059 | |
1297 | if (expect_true (p->w)) |
|
|
1298 | { |
|
|
1299 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2060 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2061 | /* ^ this is no longer true, as pending_w could be here */ |
1300 | |
2062 | |
1301 | p->w->pending = 0; |
2063 | p->w->pending = 0; |
1302 | EV_CB_INVOKE (p->w, p->events); |
2064 | EV_CB_INVOKE (p->w, p->events); |
1303 | } |
2065 | EV_FREQUENT_CHECK; |
1304 | } |
2066 | } |
1305 | } |
2067 | } |
1306 | |
2068 | |
1307 | void inline_size |
|
|
1308 | timers_reify (EV_P) |
|
|
1309 | { |
|
|
1310 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1311 | { |
|
|
1312 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1313 | |
|
|
1314 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1315 | |
|
|
1316 | /* first reschedule or stop timer */ |
|
|
1317 | if (w->repeat) |
|
|
1318 | { |
|
|
1319 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1320 | |
|
|
1321 | ((WT)w)->at += w->repeat; |
|
|
1322 | if (((WT)w)->at < mn_now) |
|
|
1323 | ((WT)w)->at = mn_now; |
|
|
1324 | |
|
|
1325 | downheap (timers, timercnt, 0); |
|
|
1326 | } |
|
|
1327 | else |
|
|
1328 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1329 | |
|
|
1330 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1331 | } |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | #if EV_PERIODIC_ENABLE |
|
|
1335 | void inline_size |
|
|
1336 | periodics_reify (EV_P) |
|
|
1337 | { |
|
|
1338 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1339 | { |
|
|
1340 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1341 | |
|
|
1342 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1343 | |
|
|
1344 | /* first reschedule or stop timer */ |
|
|
1345 | if (w->reschedule_cb) |
|
|
1346 | { |
|
|
1347 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1348 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1349 | downheap (periodics, periodiccnt, 0); |
|
|
1350 | } |
|
|
1351 | else if (w->interval) |
|
|
1352 | { |
|
|
1353 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1354 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1355 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1356 | downheap (periodics, periodiccnt, 0); |
|
|
1357 | } |
|
|
1358 | else |
|
|
1359 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1360 | |
|
|
1361 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1362 | } |
|
|
1363 | } |
|
|
1364 | |
|
|
1365 | static void noinline |
|
|
1366 | periodics_reschedule (EV_P) |
|
|
1367 | { |
|
|
1368 | int i; |
|
|
1369 | |
|
|
1370 | /* adjust periodics after time jump */ |
|
|
1371 | for (i = 0; i < periodiccnt; ++i) |
|
|
1372 | { |
|
|
1373 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1374 | |
|
|
1375 | if (w->reschedule_cb) |
|
|
1376 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1377 | else if (w->interval) |
|
|
1378 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | /* now rebuild the heap */ |
|
|
1382 | for (i = periodiccnt >> 1; i--; ) |
|
|
1383 | downheap (periodics, periodiccnt, i); |
|
|
1384 | } |
|
|
1385 | #endif |
|
|
1386 | |
|
|
1387 | #if EV_IDLE_ENABLE |
2069 | #if EV_IDLE_ENABLE |
1388 | void inline_size |
2070 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2071 | /* only when higher priorities are idle" logic */ |
|
|
2072 | inline_size void |
1389 | idle_reify (EV_P) |
2073 | idle_reify (EV_P) |
1390 | { |
2074 | { |
1391 | if (expect_false (idleall)) |
2075 | if (expect_false (idleall)) |
1392 | { |
2076 | { |
1393 | int pri; |
2077 | int pri; |
… | |
… | |
1405 | } |
2089 | } |
1406 | } |
2090 | } |
1407 | } |
2091 | } |
1408 | #endif |
2092 | #endif |
1409 | |
2093 | |
1410 | void inline_speed |
2094 | /* make timers pending */ |
|
|
2095 | inline_size void |
|
|
2096 | timers_reify (EV_P) |
|
|
2097 | { |
|
|
2098 | EV_FREQUENT_CHECK; |
|
|
2099 | |
|
|
2100 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2101 | { |
|
|
2102 | do |
|
|
2103 | { |
|
|
2104 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2105 | |
|
|
2106 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2107 | |
|
|
2108 | /* first reschedule or stop timer */ |
|
|
2109 | if (w->repeat) |
|
|
2110 | { |
|
|
2111 | ev_at (w) += w->repeat; |
|
|
2112 | if (ev_at (w) < mn_now) |
|
|
2113 | ev_at (w) = mn_now; |
|
|
2114 | |
|
|
2115 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2116 | |
|
|
2117 | ANHE_at_cache (timers [HEAP0]); |
|
|
2118 | downheap (timers, timercnt, HEAP0); |
|
|
2119 | } |
|
|
2120 | else |
|
|
2121 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2122 | |
|
|
2123 | EV_FREQUENT_CHECK; |
|
|
2124 | feed_reverse (EV_A_ (W)w); |
|
|
2125 | } |
|
|
2126 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2127 | |
|
|
2128 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2129 | } |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | #if EV_PERIODIC_ENABLE |
|
|
2133 | /* make periodics pending */ |
|
|
2134 | inline_size void |
|
|
2135 | periodics_reify (EV_P) |
|
|
2136 | { |
|
|
2137 | EV_FREQUENT_CHECK; |
|
|
2138 | |
|
|
2139 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2140 | { |
|
|
2141 | int feed_count = 0; |
|
|
2142 | |
|
|
2143 | do |
|
|
2144 | { |
|
|
2145 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2146 | |
|
|
2147 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2148 | |
|
|
2149 | /* first reschedule or stop timer */ |
|
|
2150 | if (w->reschedule_cb) |
|
|
2151 | { |
|
|
2152 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2153 | |
|
|
2154 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2155 | |
|
|
2156 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2157 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2158 | } |
|
|
2159 | else if (w->interval) |
|
|
2160 | { |
|
|
2161 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2162 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2163 | /* this might happen because of floating point inexactness */ |
|
|
2164 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2165 | { |
|
|
2166 | ev_at (w) += w->interval; |
|
|
2167 | |
|
|
2168 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2169 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2170 | /* has effectively asked to get triggered more often than possible */ |
|
|
2171 | if (ev_at (w) < ev_rt_now) |
|
|
2172 | ev_at (w) = ev_rt_now; |
|
|
2173 | } |
|
|
2174 | |
|
|
2175 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2176 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2177 | } |
|
|
2178 | else |
|
|
2179 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2180 | |
|
|
2181 | EV_FREQUENT_CHECK; |
|
|
2182 | feed_reverse (EV_A_ (W)w); |
|
|
2183 | } |
|
|
2184 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2185 | |
|
|
2186 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2187 | } |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | /* simply recalculate all periodics */ |
|
|
2191 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2192 | static void noinline |
|
|
2193 | periodics_reschedule (EV_P) |
|
|
2194 | { |
|
|
2195 | int i; |
|
|
2196 | |
|
|
2197 | /* adjust periodics after time jump */ |
|
|
2198 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2199 | { |
|
|
2200 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2201 | |
|
|
2202 | if (w->reschedule_cb) |
|
|
2203 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2204 | else if (w->interval) |
|
|
2205 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2206 | |
|
|
2207 | ANHE_at_cache (periodics [i]); |
|
|
2208 | } |
|
|
2209 | |
|
|
2210 | reheap (periodics, periodiccnt); |
|
|
2211 | } |
|
|
2212 | #endif |
|
|
2213 | |
|
|
2214 | /* adjust all timers by a given offset */ |
|
|
2215 | static void noinline |
|
|
2216 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2217 | { |
|
|
2218 | int i; |
|
|
2219 | |
|
|
2220 | for (i = 0; i < timercnt; ++i) |
|
|
2221 | { |
|
|
2222 | ANHE *he = timers + i + HEAP0; |
|
|
2223 | ANHE_w (*he)->at += adjust; |
|
|
2224 | ANHE_at_cache (*he); |
|
|
2225 | } |
|
|
2226 | } |
|
|
2227 | |
|
|
2228 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2229 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2230 | inline_speed void |
1411 | time_update (EV_P_ ev_tstamp max_block) |
2231 | time_update (EV_P_ ev_tstamp max_block) |
1412 | { |
2232 | { |
1413 | int i; |
|
|
1414 | |
|
|
1415 | #if EV_USE_MONOTONIC |
2233 | #if EV_USE_MONOTONIC |
1416 | if (expect_true (have_monotonic)) |
2234 | if (expect_true (have_monotonic)) |
1417 | { |
2235 | { |
|
|
2236 | int i; |
1418 | ev_tstamp odiff = rtmn_diff; |
2237 | ev_tstamp odiff = rtmn_diff; |
1419 | |
2238 | |
1420 | mn_now = get_clock (); |
2239 | mn_now = get_clock (); |
1421 | |
2240 | |
1422 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2241 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1440 | */ |
2259 | */ |
1441 | for (i = 4; --i; ) |
2260 | for (i = 4; --i; ) |
1442 | { |
2261 | { |
1443 | rtmn_diff = ev_rt_now - mn_now; |
2262 | rtmn_diff = ev_rt_now - mn_now; |
1444 | |
2263 | |
1445 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2264 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1446 | return; /* all is well */ |
2265 | return; /* all is well */ |
1447 | |
2266 | |
1448 | ev_rt_now = ev_time (); |
2267 | ev_rt_now = ev_time (); |
1449 | mn_now = get_clock (); |
2268 | mn_now = get_clock (); |
1450 | now_floor = mn_now; |
2269 | now_floor = mn_now; |
1451 | } |
2270 | } |
1452 | |
2271 | |
|
|
2272 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2273 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1453 | # if EV_PERIODIC_ENABLE |
2274 | # if EV_PERIODIC_ENABLE |
1454 | periodics_reschedule (EV_A); |
2275 | periodics_reschedule (EV_A); |
1455 | # endif |
2276 | # endif |
1456 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1457 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1458 | } |
2277 | } |
1459 | else |
2278 | else |
1460 | #endif |
2279 | #endif |
1461 | { |
2280 | { |
1462 | ev_rt_now = ev_time (); |
2281 | ev_rt_now = ev_time (); |
1463 | |
2282 | |
1464 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2283 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1465 | { |
2284 | { |
|
|
2285 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2286 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1466 | #if EV_PERIODIC_ENABLE |
2287 | #if EV_PERIODIC_ENABLE |
1467 | periodics_reschedule (EV_A); |
2288 | periodics_reschedule (EV_A); |
1468 | #endif |
2289 | #endif |
1469 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1470 | for (i = 0; i < timercnt; ++i) |
|
|
1471 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1472 | } |
2290 | } |
1473 | |
2291 | |
1474 | mn_now = ev_rt_now; |
2292 | mn_now = ev_rt_now; |
1475 | } |
2293 | } |
1476 | } |
2294 | } |
1477 | |
2295 | |
1478 | void |
2296 | void |
1479 | ev_ref (EV_P) |
|
|
1480 | { |
|
|
1481 | ++activecnt; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | void |
|
|
1485 | ev_unref (EV_P) |
|
|
1486 | { |
|
|
1487 | --activecnt; |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | static int loop_done; |
|
|
1491 | |
|
|
1492 | void |
|
|
1493 | ev_loop (EV_P_ int flags) |
2297 | ev_run (EV_P_ int flags) |
1494 | { |
2298 | { |
1495 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2299 | #if EV_FEATURE_API |
1496 | ? EVUNLOOP_ONE |
2300 | ++loop_depth; |
1497 | : EVUNLOOP_CANCEL; |
2301 | #endif |
1498 | |
2302 | |
|
|
2303 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2304 | |
|
|
2305 | loop_done = EVBREAK_CANCEL; |
|
|
2306 | |
1499 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2307 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1500 | |
2308 | |
1501 | do |
2309 | do |
1502 | { |
2310 | { |
|
|
2311 | #if EV_VERIFY >= 2 |
|
|
2312 | ev_verify (EV_A); |
|
|
2313 | #endif |
|
|
2314 | |
1503 | #ifndef _WIN32 |
2315 | #ifndef _WIN32 |
1504 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2316 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1505 | if (expect_false (getpid () != curpid)) |
2317 | if (expect_false (getpid () != curpid)) |
1506 | { |
2318 | { |
1507 | curpid = getpid (); |
2319 | curpid = getpid (); |
… | |
… | |
1513 | /* we might have forked, so queue fork handlers */ |
2325 | /* we might have forked, so queue fork handlers */ |
1514 | if (expect_false (postfork)) |
2326 | if (expect_false (postfork)) |
1515 | if (forkcnt) |
2327 | if (forkcnt) |
1516 | { |
2328 | { |
1517 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2329 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1518 | call_pending (EV_A); |
2330 | EV_INVOKE_PENDING; |
1519 | } |
2331 | } |
1520 | #endif |
2332 | #endif |
1521 | |
2333 | |
|
|
2334 | #if EV_PREPARE_ENABLE |
1522 | /* queue prepare watchers (and execute them) */ |
2335 | /* queue prepare watchers (and execute them) */ |
1523 | if (expect_false (preparecnt)) |
2336 | if (expect_false (preparecnt)) |
1524 | { |
2337 | { |
1525 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2338 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1526 | call_pending (EV_A); |
2339 | EV_INVOKE_PENDING; |
1527 | } |
2340 | } |
|
|
2341 | #endif |
1528 | |
2342 | |
1529 | if (expect_false (!activecnt)) |
2343 | if (expect_false (loop_done)) |
1530 | break; |
2344 | break; |
1531 | |
2345 | |
1532 | /* we might have forked, so reify kernel state if necessary */ |
2346 | /* we might have forked, so reify kernel state if necessary */ |
1533 | if (expect_false (postfork)) |
2347 | if (expect_false (postfork)) |
1534 | loop_fork (EV_A); |
2348 | loop_fork (EV_A); |
… | |
… | |
1539 | /* calculate blocking time */ |
2353 | /* calculate blocking time */ |
1540 | { |
2354 | { |
1541 | ev_tstamp waittime = 0.; |
2355 | ev_tstamp waittime = 0.; |
1542 | ev_tstamp sleeptime = 0.; |
2356 | ev_tstamp sleeptime = 0.; |
1543 | |
2357 | |
|
|
2358 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2359 | ev_tstamp prev_mn_now = mn_now; |
|
|
2360 | |
|
|
2361 | /* update time to cancel out callback processing overhead */ |
|
|
2362 | time_update (EV_A_ 1e100); |
|
|
2363 | |
1544 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2364 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1545 | { |
2365 | { |
1546 | /* update time to cancel out callback processing overhead */ |
|
|
1547 | time_update (EV_A_ 1e100); |
|
|
1548 | |
|
|
1549 | waittime = MAX_BLOCKTIME; |
2366 | waittime = MAX_BLOCKTIME; |
1550 | |
2367 | |
1551 | if (timercnt) |
2368 | if (timercnt) |
1552 | { |
2369 | { |
1553 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2370 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1554 | if (waittime > to) waittime = to; |
2371 | if (waittime > to) waittime = to; |
1555 | } |
2372 | } |
1556 | |
2373 | |
1557 | #if EV_PERIODIC_ENABLE |
2374 | #if EV_PERIODIC_ENABLE |
1558 | if (periodiccnt) |
2375 | if (periodiccnt) |
1559 | { |
2376 | { |
1560 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2377 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1561 | if (waittime > to) waittime = to; |
2378 | if (waittime > to) waittime = to; |
1562 | } |
2379 | } |
1563 | #endif |
2380 | #endif |
1564 | |
2381 | |
|
|
2382 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1565 | if (expect_false (waittime < timeout_blocktime)) |
2383 | if (expect_false (waittime < timeout_blocktime)) |
1566 | waittime = timeout_blocktime; |
2384 | waittime = timeout_blocktime; |
1567 | |
2385 | |
1568 | sleeptime = waittime - backend_fudge; |
2386 | /* extra check because io_blocktime is commonly 0 */ |
1569 | |
|
|
1570 | if (expect_true (sleeptime > io_blocktime)) |
2387 | if (expect_false (io_blocktime)) |
1571 | sleeptime = io_blocktime; |
|
|
1572 | |
|
|
1573 | if (sleeptime) |
|
|
1574 | { |
2388 | { |
|
|
2389 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2390 | |
|
|
2391 | if (sleeptime > waittime - backend_fudge) |
|
|
2392 | sleeptime = waittime - backend_fudge; |
|
|
2393 | |
|
|
2394 | if (expect_true (sleeptime > 0.)) |
|
|
2395 | { |
1575 | ev_sleep (sleeptime); |
2396 | ev_sleep (sleeptime); |
1576 | waittime -= sleeptime; |
2397 | waittime -= sleeptime; |
|
|
2398 | } |
1577 | } |
2399 | } |
1578 | } |
2400 | } |
1579 | |
2401 | |
|
|
2402 | #if EV_FEATURE_API |
1580 | ++loop_count; |
2403 | ++loop_count; |
|
|
2404 | #endif |
|
|
2405 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1581 | backend_poll (EV_A_ waittime); |
2406 | backend_poll (EV_A_ waittime); |
|
|
2407 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
1582 | |
2408 | |
1583 | /* update ev_rt_now, do magic */ |
2409 | /* update ev_rt_now, do magic */ |
1584 | time_update (EV_A_ waittime + sleeptime); |
2410 | time_update (EV_A_ waittime + sleeptime); |
1585 | } |
2411 | } |
1586 | |
2412 | |
… | |
… | |
1593 | #if EV_IDLE_ENABLE |
2419 | #if EV_IDLE_ENABLE |
1594 | /* queue idle watchers unless other events are pending */ |
2420 | /* queue idle watchers unless other events are pending */ |
1595 | idle_reify (EV_A); |
2421 | idle_reify (EV_A); |
1596 | #endif |
2422 | #endif |
1597 | |
2423 | |
|
|
2424 | #if EV_CHECK_ENABLE |
1598 | /* queue check watchers, to be executed first */ |
2425 | /* queue check watchers, to be executed first */ |
1599 | if (expect_false (checkcnt)) |
2426 | if (expect_false (checkcnt)) |
1600 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2427 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2428 | #endif |
1601 | |
2429 | |
1602 | call_pending (EV_A); |
2430 | EV_INVOKE_PENDING; |
1603 | |
|
|
1604 | } |
2431 | } |
1605 | while (expect_true (activecnt && !loop_done)); |
2432 | while (expect_true ( |
|
|
2433 | activecnt |
|
|
2434 | && !loop_done |
|
|
2435 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
2436 | )); |
1606 | |
2437 | |
1607 | if (loop_done == EVUNLOOP_ONE) |
2438 | if (loop_done == EVBREAK_ONE) |
1608 | loop_done = EVUNLOOP_CANCEL; |
2439 | loop_done = EVBREAK_CANCEL; |
1609 | } |
|
|
1610 | |
2440 | |
|
|
2441 | #if EV_FEATURE_API |
|
|
2442 | --loop_depth; |
|
|
2443 | #endif |
|
|
2444 | } |
|
|
2445 | |
1611 | void |
2446 | void |
1612 | ev_unloop (EV_P_ int how) |
2447 | ev_break (EV_P_ int how) |
1613 | { |
2448 | { |
1614 | loop_done = how; |
2449 | loop_done = how; |
1615 | } |
2450 | } |
1616 | |
2451 | |
|
|
2452 | void |
|
|
2453 | ev_ref (EV_P) |
|
|
2454 | { |
|
|
2455 | ++activecnt; |
|
|
2456 | } |
|
|
2457 | |
|
|
2458 | void |
|
|
2459 | ev_unref (EV_P) |
|
|
2460 | { |
|
|
2461 | --activecnt; |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | void |
|
|
2465 | ev_now_update (EV_P) |
|
|
2466 | { |
|
|
2467 | time_update (EV_A_ 1e100); |
|
|
2468 | } |
|
|
2469 | |
|
|
2470 | void |
|
|
2471 | ev_suspend (EV_P) |
|
|
2472 | { |
|
|
2473 | ev_now_update (EV_A); |
|
|
2474 | } |
|
|
2475 | |
|
|
2476 | void |
|
|
2477 | ev_resume (EV_P) |
|
|
2478 | { |
|
|
2479 | ev_tstamp mn_prev = mn_now; |
|
|
2480 | |
|
|
2481 | ev_now_update (EV_A); |
|
|
2482 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2483 | #if EV_PERIODIC_ENABLE |
|
|
2484 | /* TODO: really do this? */ |
|
|
2485 | periodics_reschedule (EV_A); |
|
|
2486 | #endif |
|
|
2487 | } |
|
|
2488 | |
1617 | /*****************************************************************************/ |
2489 | /*****************************************************************************/ |
|
|
2490 | /* singly-linked list management, used when the expected list length is short */ |
1618 | |
2491 | |
1619 | void inline_size |
2492 | inline_size void |
1620 | wlist_add (WL *head, WL elem) |
2493 | wlist_add (WL *head, WL elem) |
1621 | { |
2494 | { |
1622 | elem->next = *head; |
2495 | elem->next = *head; |
1623 | *head = elem; |
2496 | *head = elem; |
1624 | } |
2497 | } |
1625 | |
2498 | |
1626 | void inline_size |
2499 | inline_size void |
1627 | wlist_del (WL *head, WL elem) |
2500 | wlist_del (WL *head, WL elem) |
1628 | { |
2501 | { |
1629 | while (*head) |
2502 | while (*head) |
1630 | { |
2503 | { |
1631 | if (*head == elem) |
2504 | if (expect_true (*head == elem)) |
1632 | { |
2505 | { |
1633 | *head = elem->next; |
2506 | *head = elem->next; |
1634 | return; |
2507 | break; |
1635 | } |
2508 | } |
1636 | |
2509 | |
1637 | head = &(*head)->next; |
2510 | head = &(*head)->next; |
1638 | } |
2511 | } |
1639 | } |
2512 | } |
1640 | |
2513 | |
1641 | void inline_speed |
2514 | /* internal, faster, version of ev_clear_pending */ |
|
|
2515 | inline_speed void |
1642 | clear_pending (EV_P_ W w) |
2516 | clear_pending (EV_P_ W w) |
1643 | { |
2517 | { |
1644 | if (w->pending) |
2518 | if (w->pending) |
1645 | { |
2519 | { |
1646 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2520 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1647 | w->pending = 0; |
2521 | w->pending = 0; |
1648 | } |
2522 | } |
1649 | } |
2523 | } |
1650 | |
2524 | |
1651 | int |
2525 | int |
… | |
… | |
1655 | int pending = w_->pending; |
2529 | int pending = w_->pending; |
1656 | |
2530 | |
1657 | if (expect_true (pending)) |
2531 | if (expect_true (pending)) |
1658 | { |
2532 | { |
1659 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2533 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2534 | p->w = (W)&pending_w; |
1660 | w_->pending = 0; |
2535 | w_->pending = 0; |
1661 | p->w = 0; |
|
|
1662 | return p->events; |
2536 | return p->events; |
1663 | } |
2537 | } |
1664 | else |
2538 | else |
1665 | return 0; |
2539 | return 0; |
1666 | } |
2540 | } |
1667 | |
2541 | |
1668 | void inline_size |
2542 | inline_size void |
1669 | pri_adjust (EV_P_ W w) |
2543 | pri_adjust (EV_P_ W w) |
1670 | { |
2544 | { |
1671 | int pri = w->priority; |
2545 | int pri = ev_priority (w); |
1672 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2546 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1673 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2547 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1674 | w->priority = pri; |
2548 | ev_set_priority (w, pri); |
1675 | } |
2549 | } |
1676 | |
2550 | |
1677 | void inline_speed |
2551 | inline_speed void |
1678 | ev_start (EV_P_ W w, int active) |
2552 | ev_start (EV_P_ W w, int active) |
1679 | { |
2553 | { |
1680 | pri_adjust (EV_A_ w); |
2554 | pri_adjust (EV_A_ w); |
1681 | w->active = active; |
2555 | w->active = active; |
1682 | ev_ref (EV_A); |
2556 | ev_ref (EV_A); |
1683 | } |
2557 | } |
1684 | |
2558 | |
1685 | void inline_size |
2559 | inline_size void |
1686 | ev_stop (EV_P_ W w) |
2560 | ev_stop (EV_P_ W w) |
1687 | { |
2561 | { |
1688 | ev_unref (EV_A); |
2562 | ev_unref (EV_A); |
1689 | w->active = 0; |
2563 | w->active = 0; |
1690 | } |
2564 | } |
… | |
… | |
1697 | int fd = w->fd; |
2571 | int fd = w->fd; |
1698 | |
2572 | |
1699 | if (expect_false (ev_is_active (w))) |
2573 | if (expect_false (ev_is_active (w))) |
1700 | return; |
2574 | return; |
1701 | |
2575 | |
1702 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2576 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2577 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2578 | |
|
|
2579 | EV_FREQUENT_CHECK; |
1703 | |
2580 | |
1704 | ev_start (EV_A_ (W)w, 1); |
2581 | ev_start (EV_A_ (W)w, 1); |
1705 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2582 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1706 | wlist_add (&anfds[fd].head, (WL)w); |
2583 | wlist_add (&anfds[fd].head, (WL)w); |
1707 | |
2584 | |
1708 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2585 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1709 | w->events &= ~EV_IOFDSET; |
2586 | w->events &= ~EV__IOFDSET; |
|
|
2587 | |
|
|
2588 | EV_FREQUENT_CHECK; |
1710 | } |
2589 | } |
1711 | |
2590 | |
1712 | void noinline |
2591 | void noinline |
1713 | ev_io_stop (EV_P_ ev_io *w) |
2592 | ev_io_stop (EV_P_ ev_io *w) |
1714 | { |
2593 | { |
1715 | clear_pending (EV_A_ (W)w); |
2594 | clear_pending (EV_A_ (W)w); |
1716 | if (expect_false (!ev_is_active (w))) |
2595 | if (expect_false (!ev_is_active (w))) |
1717 | return; |
2596 | return; |
1718 | |
2597 | |
1719 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2598 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2599 | |
|
|
2600 | EV_FREQUENT_CHECK; |
1720 | |
2601 | |
1721 | wlist_del (&anfds[w->fd].head, (WL)w); |
2602 | wlist_del (&anfds[w->fd].head, (WL)w); |
1722 | ev_stop (EV_A_ (W)w); |
2603 | ev_stop (EV_A_ (W)w); |
1723 | |
2604 | |
1724 | fd_change (EV_A_ w->fd, 1); |
2605 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
2606 | |
|
|
2607 | EV_FREQUENT_CHECK; |
1725 | } |
2608 | } |
1726 | |
2609 | |
1727 | void noinline |
2610 | void noinline |
1728 | ev_timer_start (EV_P_ ev_timer *w) |
2611 | ev_timer_start (EV_P_ ev_timer *w) |
1729 | { |
2612 | { |
1730 | if (expect_false (ev_is_active (w))) |
2613 | if (expect_false (ev_is_active (w))) |
1731 | return; |
2614 | return; |
1732 | |
2615 | |
1733 | ((WT)w)->at += mn_now; |
2616 | ev_at (w) += mn_now; |
1734 | |
2617 | |
1735 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2618 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1736 | |
2619 | |
|
|
2620 | EV_FREQUENT_CHECK; |
|
|
2621 | |
|
|
2622 | ++timercnt; |
1737 | ev_start (EV_A_ (W)w, ++timercnt); |
2623 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1738 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2624 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1739 | timers [timercnt - 1] = (WT)w; |
2625 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1740 | upheap (timers, timercnt - 1); |
2626 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2627 | upheap (timers, ev_active (w)); |
1741 | |
2628 | |
|
|
2629 | EV_FREQUENT_CHECK; |
|
|
2630 | |
1742 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2631 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1743 | } |
2632 | } |
1744 | |
2633 | |
1745 | void noinline |
2634 | void noinline |
1746 | ev_timer_stop (EV_P_ ev_timer *w) |
2635 | ev_timer_stop (EV_P_ ev_timer *w) |
1747 | { |
2636 | { |
1748 | clear_pending (EV_A_ (W)w); |
2637 | clear_pending (EV_A_ (W)w); |
1749 | if (expect_false (!ev_is_active (w))) |
2638 | if (expect_false (!ev_is_active (w))) |
1750 | return; |
2639 | return; |
1751 | |
2640 | |
1752 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2641 | EV_FREQUENT_CHECK; |
1753 | |
2642 | |
1754 | { |
2643 | { |
1755 | int active = ((W)w)->active; |
2644 | int active = ev_active (w); |
1756 | |
2645 | |
|
|
2646 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2647 | |
|
|
2648 | --timercnt; |
|
|
2649 | |
1757 | if (expect_true (--active < --timercnt)) |
2650 | if (expect_true (active < timercnt + HEAP0)) |
1758 | { |
2651 | { |
1759 | timers [active] = timers [timercnt]; |
2652 | timers [active] = timers [timercnt + HEAP0]; |
1760 | adjustheap (timers, timercnt, active); |
2653 | adjustheap (timers, timercnt, active); |
1761 | } |
2654 | } |
1762 | } |
2655 | } |
1763 | |
2656 | |
1764 | ((WT)w)->at -= mn_now; |
2657 | ev_at (w) -= mn_now; |
1765 | |
2658 | |
1766 | ev_stop (EV_A_ (W)w); |
2659 | ev_stop (EV_A_ (W)w); |
|
|
2660 | |
|
|
2661 | EV_FREQUENT_CHECK; |
1767 | } |
2662 | } |
1768 | |
2663 | |
1769 | void noinline |
2664 | void noinline |
1770 | ev_timer_again (EV_P_ ev_timer *w) |
2665 | ev_timer_again (EV_P_ ev_timer *w) |
1771 | { |
2666 | { |
|
|
2667 | EV_FREQUENT_CHECK; |
|
|
2668 | |
1772 | if (ev_is_active (w)) |
2669 | if (ev_is_active (w)) |
1773 | { |
2670 | { |
1774 | if (w->repeat) |
2671 | if (w->repeat) |
1775 | { |
2672 | { |
1776 | ((WT)w)->at = mn_now + w->repeat; |
2673 | ev_at (w) = mn_now + w->repeat; |
|
|
2674 | ANHE_at_cache (timers [ev_active (w)]); |
1777 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2675 | adjustheap (timers, timercnt, ev_active (w)); |
1778 | } |
2676 | } |
1779 | else |
2677 | else |
1780 | ev_timer_stop (EV_A_ w); |
2678 | ev_timer_stop (EV_A_ w); |
1781 | } |
2679 | } |
1782 | else if (w->repeat) |
2680 | else if (w->repeat) |
1783 | { |
2681 | { |
1784 | w->at = w->repeat; |
2682 | ev_at (w) = w->repeat; |
1785 | ev_timer_start (EV_A_ w); |
2683 | ev_timer_start (EV_A_ w); |
1786 | } |
2684 | } |
|
|
2685 | |
|
|
2686 | EV_FREQUENT_CHECK; |
|
|
2687 | } |
|
|
2688 | |
|
|
2689 | ev_tstamp |
|
|
2690 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2691 | { |
|
|
2692 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1787 | } |
2693 | } |
1788 | |
2694 | |
1789 | #if EV_PERIODIC_ENABLE |
2695 | #if EV_PERIODIC_ENABLE |
1790 | void noinline |
2696 | void noinline |
1791 | ev_periodic_start (EV_P_ ev_periodic *w) |
2697 | ev_periodic_start (EV_P_ ev_periodic *w) |
1792 | { |
2698 | { |
1793 | if (expect_false (ev_is_active (w))) |
2699 | if (expect_false (ev_is_active (w))) |
1794 | return; |
2700 | return; |
1795 | |
2701 | |
1796 | if (w->reschedule_cb) |
2702 | if (w->reschedule_cb) |
1797 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2703 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1798 | else if (w->interval) |
2704 | else if (w->interval) |
1799 | { |
2705 | { |
1800 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2706 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1801 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2707 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1802 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2708 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1803 | } |
2709 | } |
1804 | else |
2710 | else |
1805 | ((WT)w)->at = w->offset; |
2711 | ev_at (w) = w->offset; |
1806 | |
2712 | |
|
|
2713 | EV_FREQUENT_CHECK; |
|
|
2714 | |
|
|
2715 | ++periodiccnt; |
1807 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2716 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1808 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2717 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1809 | periodics [periodiccnt - 1] = (WT)w; |
2718 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1810 | upheap (periodics, periodiccnt - 1); |
2719 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2720 | upheap (periodics, ev_active (w)); |
1811 | |
2721 | |
|
|
2722 | EV_FREQUENT_CHECK; |
|
|
2723 | |
1812 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2724 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1813 | } |
2725 | } |
1814 | |
2726 | |
1815 | void noinline |
2727 | void noinline |
1816 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2728 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1817 | { |
2729 | { |
1818 | clear_pending (EV_A_ (W)w); |
2730 | clear_pending (EV_A_ (W)w); |
1819 | if (expect_false (!ev_is_active (w))) |
2731 | if (expect_false (!ev_is_active (w))) |
1820 | return; |
2732 | return; |
1821 | |
2733 | |
1822 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2734 | EV_FREQUENT_CHECK; |
1823 | |
2735 | |
1824 | { |
2736 | { |
1825 | int active = ((W)w)->active; |
2737 | int active = ev_active (w); |
1826 | |
2738 | |
|
|
2739 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2740 | |
|
|
2741 | --periodiccnt; |
|
|
2742 | |
1827 | if (expect_true (--active < --periodiccnt)) |
2743 | if (expect_true (active < periodiccnt + HEAP0)) |
1828 | { |
2744 | { |
1829 | periodics [active] = periodics [periodiccnt]; |
2745 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1830 | adjustheap (periodics, periodiccnt, active); |
2746 | adjustheap (periodics, periodiccnt, active); |
1831 | } |
2747 | } |
1832 | } |
2748 | } |
1833 | |
2749 | |
1834 | ev_stop (EV_A_ (W)w); |
2750 | ev_stop (EV_A_ (W)w); |
|
|
2751 | |
|
|
2752 | EV_FREQUENT_CHECK; |
1835 | } |
2753 | } |
1836 | |
2754 | |
1837 | void noinline |
2755 | void noinline |
1838 | ev_periodic_again (EV_P_ ev_periodic *w) |
2756 | ev_periodic_again (EV_P_ ev_periodic *w) |
1839 | { |
2757 | { |
… | |
… | |
1845 | |
2763 | |
1846 | #ifndef SA_RESTART |
2764 | #ifndef SA_RESTART |
1847 | # define SA_RESTART 0 |
2765 | # define SA_RESTART 0 |
1848 | #endif |
2766 | #endif |
1849 | |
2767 | |
|
|
2768 | #if EV_SIGNAL_ENABLE |
|
|
2769 | |
1850 | void noinline |
2770 | void noinline |
1851 | ev_signal_start (EV_P_ ev_signal *w) |
2771 | ev_signal_start (EV_P_ ev_signal *w) |
1852 | { |
2772 | { |
1853 | #if EV_MULTIPLICITY |
|
|
1854 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1855 | #endif |
|
|
1856 | if (expect_false (ev_is_active (w))) |
2773 | if (expect_false (ev_is_active (w))) |
1857 | return; |
2774 | return; |
1858 | |
2775 | |
1859 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2776 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1860 | |
2777 | |
|
|
2778 | #if EV_MULTIPLICITY |
|
|
2779 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2780 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2781 | |
|
|
2782 | signals [w->signum - 1].loop = EV_A; |
|
|
2783 | #endif |
|
|
2784 | |
|
|
2785 | EV_FREQUENT_CHECK; |
|
|
2786 | |
|
|
2787 | #if EV_USE_SIGNALFD |
|
|
2788 | if (sigfd == -2) |
1861 | { |
2789 | { |
1862 | #ifndef _WIN32 |
2790 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1863 | sigset_t full, prev; |
2791 | if (sigfd < 0 && errno == EINVAL) |
1864 | sigfillset (&full); |
2792 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1865 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1866 | #endif |
|
|
1867 | |
2793 | |
1868 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2794 | if (sigfd >= 0) |
|
|
2795 | { |
|
|
2796 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1869 | |
2797 | |
1870 | #ifndef _WIN32 |
2798 | sigemptyset (&sigfd_set); |
1871 | sigprocmask (SIG_SETMASK, &prev, 0); |
2799 | |
1872 | #endif |
2800 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2801 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2802 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2803 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2804 | } |
1873 | } |
2805 | } |
|
|
2806 | |
|
|
2807 | if (sigfd >= 0) |
|
|
2808 | { |
|
|
2809 | /* TODO: check .head */ |
|
|
2810 | sigaddset (&sigfd_set, w->signum); |
|
|
2811 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2812 | |
|
|
2813 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2814 | } |
|
|
2815 | #endif |
1874 | |
2816 | |
1875 | ev_start (EV_A_ (W)w, 1); |
2817 | ev_start (EV_A_ (W)w, 1); |
1876 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2818 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1877 | |
2819 | |
1878 | if (!((WL)w)->next) |
2820 | if (!((WL)w)->next) |
|
|
2821 | # if EV_USE_SIGNALFD |
|
|
2822 | if (sigfd < 0) /*TODO*/ |
|
|
2823 | # endif |
1879 | { |
2824 | { |
1880 | #if _WIN32 |
2825 | # ifdef _WIN32 |
|
|
2826 | evpipe_init (EV_A); |
|
|
2827 | |
1881 | signal (w->signum, sighandler); |
2828 | signal (w->signum, ev_sighandler); |
1882 | #else |
2829 | # else |
1883 | struct sigaction sa; |
2830 | struct sigaction sa; |
|
|
2831 | |
|
|
2832 | evpipe_init (EV_A); |
|
|
2833 | |
1884 | sa.sa_handler = sighandler; |
2834 | sa.sa_handler = ev_sighandler; |
1885 | sigfillset (&sa.sa_mask); |
2835 | sigfillset (&sa.sa_mask); |
1886 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2836 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1887 | sigaction (w->signum, &sa, 0); |
2837 | sigaction (w->signum, &sa, 0); |
|
|
2838 | |
|
|
2839 | sigemptyset (&sa.sa_mask); |
|
|
2840 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2841 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1888 | #endif |
2842 | #endif |
1889 | } |
2843 | } |
|
|
2844 | |
|
|
2845 | EV_FREQUENT_CHECK; |
1890 | } |
2846 | } |
1891 | |
2847 | |
1892 | void noinline |
2848 | void noinline |
1893 | ev_signal_stop (EV_P_ ev_signal *w) |
2849 | ev_signal_stop (EV_P_ ev_signal *w) |
1894 | { |
2850 | { |
1895 | clear_pending (EV_A_ (W)w); |
2851 | clear_pending (EV_A_ (W)w); |
1896 | if (expect_false (!ev_is_active (w))) |
2852 | if (expect_false (!ev_is_active (w))) |
1897 | return; |
2853 | return; |
1898 | |
2854 | |
|
|
2855 | EV_FREQUENT_CHECK; |
|
|
2856 | |
1899 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2857 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1900 | ev_stop (EV_A_ (W)w); |
2858 | ev_stop (EV_A_ (W)w); |
1901 | |
2859 | |
1902 | if (!signals [w->signum - 1].head) |
2860 | if (!signals [w->signum - 1].head) |
|
|
2861 | { |
|
|
2862 | #if EV_MULTIPLICITY |
|
|
2863 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2864 | #endif |
|
|
2865 | #if EV_USE_SIGNALFD |
|
|
2866 | if (sigfd >= 0) |
|
|
2867 | { |
|
|
2868 | sigset_t ss; |
|
|
2869 | |
|
|
2870 | sigemptyset (&ss); |
|
|
2871 | sigaddset (&ss, w->signum); |
|
|
2872 | sigdelset (&sigfd_set, w->signum); |
|
|
2873 | |
|
|
2874 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2875 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2876 | } |
|
|
2877 | else |
|
|
2878 | #endif |
1903 | signal (w->signum, SIG_DFL); |
2879 | signal (w->signum, SIG_DFL); |
|
|
2880 | } |
|
|
2881 | |
|
|
2882 | EV_FREQUENT_CHECK; |
1904 | } |
2883 | } |
|
|
2884 | |
|
|
2885 | #endif |
|
|
2886 | |
|
|
2887 | #if EV_CHILD_ENABLE |
1905 | |
2888 | |
1906 | void |
2889 | void |
1907 | ev_child_start (EV_P_ ev_child *w) |
2890 | ev_child_start (EV_P_ ev_child *w) |
1908 | { |
2891 | { |
1909 | #if EV_MULTIPLICITY |
2892 | #if EV_MULTIPLICITY |
1910 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2893 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1911 | #endif |
2894 | #endif |
1912 | if (expect_false (ev_is_active (w))) |
2895 | if (expect_false (ev_is_active (w))) |
1913 | return; |
2896 | return; |
1914 | |
2897 | |
|
|
2898 | EV_FREQUENT_CHECK; |
|
|
2899 | |
1915 | ev_start (EV_A_ (W)w, 1); |
2900 | ev_start (EV_A_ (W)w, 1); |
1916 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2901 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
2902 | |
|
|
2903 | EV_FREQUENT_CHECK; |
1917 | } |
2904 | } |
1918 | |
2905 | |
1919 | void |
2906 | void |
1920 | ev_child_stop (EV_P_ ev_child *w) |
2907 | ev_child_stop (EV_P_ ev_child *w) |
1921 | { |
2908 | { |
1922 | clear_pending (EV_A_ (W)w); |
2909 | clear_pending (EV_A_ (W)w); |
1923 | if (expect_false (!ev_is_active (w))) |
2910 | if (expect_false (!ev_is_active (w))) |
1924 | return; |
2911 | return; |
1925 | |
2912 | |
|
|
2913 | EV_FREQUENT_CHECK; |
|
|
2914 | |
1926 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2915 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1927 | ev_stop (EV_A_ (W)w); |
2916 | ev_stop (EV_A_ (W)w); |
|
|
2917 | |
|
|
2918 | EV_FREQUENT_CHECK; |
1928 | } |
2919 | } |
|
|
2920 | |
|
|
2921 | #endif |
1929 | |
2922 | |
1930 | #if EV_STAT_ENABLE |
2923 | #if EV_STAT_ENABLE |
1931 | |
2924 | |
1932 | # ifdef _WIN32 |
2925 | # ifdef _WIN32 |
1933 | # undef lstat |
2926 | # undef lstat |
1934 | # define lstat(a,b) _stati64 (a,b) |
2927 | # define lstat(a,b) _stati64 (a,b) |
1935 | # endif |
2928 | # endif |
1936 | |
2929 | |
1937 | #define DEF_STAT_INTERVAL 5.0074891 |
2930 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2931 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1938 | #define MIN_STAT_INTERVAL 0.1074891 |
2932 | #define MIN_STAT_INTERVAL 0.1074891 |
1939 | |
2933 | |
1940 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2934 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1941 | |
2935 | |
1942 | #if EV_USE_INOTIFY |
2936 | #if EV_USE_INOTIFY |
1943 | # define EV_INOTIFY_BUFSIZE 8192 |
2937 | |
|
|
2938 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2939 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1944 | |
2940 | |
1945 | static void noinline |
2941 | static void noinline |
1946 | infy_add (EV_P_ ev_stat *w) |
2942 | infy_add (EV_P_ ev_stat *w) |
1947 | { |
2943 | { |
1948 | 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); |
2944 | 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); |
1949 | |
2945 | |
1950 | if (w->wd < 0) |
2946 | if (w->wd >= 0) |
|
|
2947 | { |
|
|
2948 | struct statfs sfs; |
|
|
2949 | |
|
|
2950 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2951 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2952 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2953 | |
|
|
2954 | if (!fs_2625) |
|
|
2955 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2956 | else if (!statfs (w->path, &sfs) |
|
|
2957 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2958 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2959 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2960 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2961 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2962 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2963 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2964 | else |
|
|
2965 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1951 | { |
2966 | } |
1952 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2967 | else |
|
|
2968 | { |
|
|
2969 | /* can't use inotify, continue to stat */ |
|
|
2970 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1953 | |
2971 | |
1954 | /* monitor some parent directory for speedup hints */ |
2972 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2973 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2974 | /* but an efficiency issue only */ |
1955 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2975 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1956 | { |
2976 | { |
1957 | char path [4096]; |
2977 | char path [4096]; |
1958 | strcpy (path, w->path); |
2978 | strcpy (path, w->path); |
1959 | |
2979 | |
… | |
… | |
1962 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2982 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1963 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2983 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1964 | |
2984 | |
1965 | char *pend = strrchr (path, '/'); |
2985 | char *pend = strrchr (path, '/'); |
1966 | |
2986 | |
1967 | if (!pend) |
2987 | if (!pend || pend == path) |
1968 | break; /* whoops, no '/', complain to your admin */ |
2988 | break; |
1969 | |
2989 | |
1970 | *pend = 0; |
2990 | *pend = 0; |
1971 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2991 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1972 | } |
2992 | } |
1973 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2993 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1974 | } |
2994 | } |
1975 | } |
2995 | } |
1976 | else |
|
|
1977 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1978 | |
2996 | |
1979 | if (w->wd >= 0) |
2997 | if (w->wd >= 0) |
1980 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2998 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
2999 | |
|
|
3000 | /* now re-arm timer, if required */ |
|
|
3001 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3002 | ev_timer_again (EV_A_ &w->timer); |
|
|
3003 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1981 | } |
3004 | } |
1982 | |
3005 | |
1983 | static void noinline |
3006 | static void noinline |
1984 | infy_del (EV_P_ ev_stat *w) |
3007 | infy_del (EV_P_ ev_stat *w) |
1985 | { |
3008 | { |
… | |
… | |
1988 | |
3011 | |
1989 | if (wd < 0) |
3012 | if (wd < 0) |
1990 | return; |
3013 | return; |
1991 | |
3014 | |
1992 | w->wd = -2; |
3015 | w->wd = -2; |
1993 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3016 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1994 | wlist_del (&fs_hash [slot].head, (WL)w); |
3017 | wlist_del (&fs_hash [slot].head, (WL)w); |
1995 | |
3018 | |
1996 | /* remove this watcher, if others are watching it, they will rearm */ |
3019 | /* remove this watcher, if others are watching it, they will rearm */ |
1997 | inotify_rm_watch (fs_fd, wd); |
3020 | inotify_rm_watch (fs_fd, wd); |
1998 | } |
3021 | } |
1999 | |
3022 | |
2000 | static void noinline |
3023 | static void noinline |
2001 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3024 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2002 | { |
3025 | { |
2003 | if (slot < 0) |
3026 | if (slot < 0) |
2004 | /* overflow, need to check for all hahs slots */ |
3027 | /* overflow, need to check for all hash slots */ |
2005 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3028 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2006 | infy_wd (EV_A_ slot, wd, ev); |
3029 | infy_wd (EV_A_ slot, wd, ev); |
2007 | else |
3030 | else |
2008 | { |
3031 | { |
2009 | WL w_; |
3032 | WL w_; |
2010 | |
3033 | |
2011 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3034 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2012 | { |
3035 | { |
2013 | ev_stat *w = (ev_stat *)w_; |
3036 | ev_stat *w = (ev_stat *)w_; |
2014 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3037 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2015 | |
3038 | |
2016 | if (w->wd == wd || wd == -1) |
3039 | if (w->wd == wd || wd == -1) |
2017 | { |
3040 | { |
2018 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3041 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2019 | { |
3042 | { |
|
|
3043 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2020 | w->wd = -1; |
3044 | w->wd = -1; |
2021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3045 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2022 | } |
3046 | } |
2023 | |
3047 | |
2024 | stat_timer_cb (EV_A_ &w->timer, 0); |
3048 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2029 | |
3053 | |
2030 | static void |
3054 | static void |
2031 | infy_cb (EV_P_ ev_io *w, int revents) |
3055 | infy_cb (EV_P_ ev_io *w, int revents) |
2032 | { |
3056 | { |
2033 | char buf [EV_INOTIFY_BUFSIZE]; |
3057 | char buf [EV_INOTIFY_BUFSIZE]; |
2034 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2035 | int ofs; |
3058 | int ofs; |
2036 | int len = read (fs_fd, buf, sizeof (buf)); |
3059 | int len = read (fs_fd, buf, sizeof (buf)); |
2037 | |
3060 | |
2038 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3061 | for (ofs = 0; ofs < len; ) |
|
|
3062 | { |
|
|
3063 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2039 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3064 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3065 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3066 | } |
2040 | } |
3067 | } |
2041 | |
3068 | |
2042 | void inline_size |
3069 | inline_size unsigned int |
|
|
3070 | ev_linux_version (void) |
|
|
3071 | { |
|
|
3072 | struct utsname buf; |
|
|
3073 | unsigned int v; |
|
|
3074 | int i; |
|
|
3075 | char *p = buf.release; |
|
|
3076 | |
|
|
3077 | if (uname (&buf)) |
|
|
3078 | return 0; |
|
|
3079 | |
|
|
3080 | for (i = 3+1; --i; ) |
|
|
3081 | { |
|
|
3082 | unsigned int c = 0; |
|
|
3083 | |
|
|
3084 | for (;;) |
|
|
3085 | { |
|
|
3086 | if (*p >= '0' && *p <= '9') |
|
|
3087 | c = c * 10 + *p++ - '0'; |
|
|
3088 | else |
|
|
3089 | { |
|
|
3090 | p += *p == '.'; |
|
|
3091 | break; |
|
|
3092 | } |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | v = (v << 8) | c; |
|
|
3096 | } |
|
|
3097 | |
|
|
3098 | return v; |
|
|
3099 | } |
|
|
3100 | |
|
|
3101 | inline_size void |
|
|
3102 | ev_check_2625 (EV_P) |
|
|
3103 | { |
|
|
3104 | /* kernels < 2.6.25 are borked |
|
|
3105 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3106 | */ |
|
|
3107 | if (ev_linux_version () < 0x020619) |
|
|
3108 | return; |
|
|
3109 | |
|
|
3110 | fs_2625 = 1; |
|
|
3111 | } |
|
|
3112 | |
|
|
3113 | inline_size int |
|
|
3114 | infy_newfd (void) |
|
|
3115 | { |
|
|
3116 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3117 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3118 | if (fd >= 0) |
|
|
3119 | return fd; |
|
|
3120 | #endif |
|
|
3121 | return inotify_init (); |
|
|
3122 | } |
|
|
3123 | |
|
|
3124 | inline_size void |
2043 | infy_init (EV_P) |
3125 | infy_init (EV_P) |
2044 | { |
3126 | { |
2045 | if (fs_fd != -2) |
3127 | if (fs_fd != -2) |
2046 | return; |
3128 | return; |
2047 | |
3129 | |
|
|
3130 | fs_fd = -1; |
|
|
3131 | |
|
|
3132 | ev_check_2625 (EV_A); |
|
|
3133 | |
2048 | fs_fd = inotify_init (); |
3134 | fs_fd = infy_newfd (); |
2049 | |
3135 | |
2050 | if (fs_fd >= 0) |
3136 | if (fs_fd >= 0) |
2051 | { |
3137 | { |
|
|
3138 | fd_intern (fs_fd); |
2052 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3139 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2053 | ev_set_priority (&fs_w, EV_MAXPRI); |
3140 | ev_set_priority (&fs_w, EV_MAXPRI); |
2054 | ev_io_start (EV_A_ &fs_w); |
3141 | ev_io_start (EV_A_ &fs_w); |
|
|
3142 | ev_unref (EV_A); |
2055 | } |
3143 | } |
2056 | } |
3144 | } |
2057 | |
3145 | |
2058 | void inline_size |
3146 | inline_size void |
2059 | infy_fork (EV_P) |
3147 | infy_fork (EV_P) |
2060 | { |
3148 | { |
2061 | int slot; |
3149 | int slot; |
2062 | |
3150 | |
2063 | if (fs_fd < 0) |
3151 | if (fs_fd < 0) |
2064 | return; |
3152 | return; |
2065 | |
3153 | |
|
|
3154 | ev_ref (EV_A); |
|
|
3155 | ev_io_stop (EV_A_ &fs_w); |
2066 | close (fs_fd); |
3156 | close (fs_fd); |
2067 | fs_fd = inotify_init (); |
3157 | fs_fd = infy_newfd (); |
2068 | |
3158 | |
|
|
3159 | if (fs_fd >= 0) |
|
|
3160 | { |
|
|
3161 | fd_intern (fs_fd); |
|
|
3162 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3163 | ev_io_start (EV_A_ &fs_w); |
|
|
3164 | ev_unref (EV_A); |
|
|
3165 | } |
|
|
3166 | |
2069 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3167 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2070 | { |
3168 | { |
2071 | WL w_ = fs_hash [slot].head; |
3169 | WL w_ = fs_hash [slot].head; |
2072 | fs_hash [slot].head = 0; |
3170 | fs_hash [slot].head = 0; |
2073 | |
3171 | |
2074 | while (w_) |
3172 | while (w_) |
… | |
… | |
2079 | w->wd = -1; |
3177 | w->wd = -1; |
2080 | |
3178 | |
2081 | if (fs_fd >= 0) |
3179 | if (fs_fd >= 0) |
2082 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3180 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2083 | else |
3181 | else |
|
|
3182 | { |
|
|
3183 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3184 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2084 | ev_timer_start (EV_A_ &w->timer); |
3185 | ev_timer_again (EV_A_ &w->timer); |
|
|
3186 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3187 | } |
2085 | } |
3188 | } |
2086 | |
|
|
2087 | } |
3189 | } |
2088 | } |
3190 | } |
2089 | |
3191 | |
|
|
3192 | #endif |
|
|
3193 | |
|
|
3194 | #ifdef _WIN32 |
|
|
3195 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3196 | #else |
|
|
3197 | # define EV_LSTAT(p,b) lstat (p, b) |
2090 | #endif |
3198 | #endif |
2091 | |
3199 | |
2092 | void |
3200 | void |
2093 | ev_stat_stat (EV_P_ ev_stat *w) |
3201 | ev_stat_stat (EV_P_ ev_stat *w) |
2094 | { |
3202 | { |
… | |
… | |
2101 | static void noinline |
3209 | static void noinline |
2102 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3210 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2103 | { |
3211 | { |
2104 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3212 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2105 | |
3213 | |
2106 | /* we copy this here each the time so that */ |
3214 | ev_statdata prev = w->attr; |
2107 | /* prev has the old value when the callback gets invoked */ |
|
|
2108 | w->prev = w->attr; |
|
|
2109 | ev_stat_stat (EV_A_ w); |
3215 | ev_stat_stat (EV_A_ w); |
2110 | |
3216 | |
2111 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3217 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2112 | if ( |
3218 | if ( |
2113 | w->prev.st_dev != w->attr.st_dev |
3219 | prev.st_dev != w->attr.st_dev |
2114 | || w->prev.st_ino != w->attr.st_ino |
3220 | || prev.st_ino != w->attr.st_ino |
2115 | || w->prev.st_mode != w->attr.st_mode |
3221 | || prev.st_mode != w->attr.st_mode |
2116 | || w->prev.st_nlink != w->attr.st_nlink |
3222 | || prev.st_nlink != w->attr.st_nlink |
2117 | || w->prev.st_uid != w->attr.st_uid |
3223 | || prev.st_uid != w->attr.st_uid |
2118 | || w->prev.st_gid != w->attr.st_gid |
3224 | || prev.st_gid != w->attr.st_gid |
2119 | || w->prev.st_rdev != w->attr.st_rdev |
3225 | || prev.st_rdev != w->attr.st_rdev |
2120 | || w->prev.st_size != w->attr.st_size |
3226 | || prev.st_size != w->attr.st_size |
2121 | || w->prev.st_atime != w->attr.st_atime |
3227 | || prev.st_atime != w->attr.st_atime |
2122 | || w->prev.st_mtime != w->attr.st_mtime |
3228 | || prev.st_mtime != w->attr.st_mtime |
2123 | || w->prev.st_ctime != w->attr.st_ctime |
3229 | || prev.st_ctime != w->attr.st_ctime |
2124 | ) { |
3230 | ) { |
|
|
3231 | /* we only update w->prev on actual differences */ |
|
|
3232 | /* in case we test more often than invoke the callback, */ |
|
|
3233 | /* to ensure that prev is always different to attr */ |
|
|
3234 | w->prev = prev; |
|
|
3235 | |
2125 | #if EV_USE_INOTIFY |
3236 | #if EV_USE_INOTIFY |
|
|
3237 | if (fs_fd >= 0) |
|
|
3238 | { |
2126 | infy_del (EV_A_ w); |
3239 | infy_del (EV_A_ w); |
2127 | infy_add (EV_A_ w); |
3240 | infy_add (EV_A_ w); |
2128 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3241 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3242 | } |
2129 | #endif |
3243 | #endif |
2130 | |
3244 | |
2131 | ev_feed_event (EV_A_ w, EV_STAT); |
3245 | ev_feed_event (EV_A_ w, EV_STAT); |
2132 | } |
3246 | } |
2133 | } |
3247 | } |
… | |
… | |
2136 | ev_stat_start (EV_P_ ev_stat *w) |
3250 | ev_stat_start (EV_P_ ev_stat *w) |
2137 | { |
3251 | { |
2138 | if (expect_false (ev_is_active (w))) |
3252 | if (expect_false (ev_is_active (w))) |
2139 | return; |
3253 | return; |
2140 | |
3254 | |
2141 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2142 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2143 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2144 | |
|
|
2145 | ev_stat_stat (EV_A_ w); |
3255 | ev_stat_stat (EV_A_ w); |
2146 | |
3256 | |
|
|
3257 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2147 | if (w->interval < MIN_STAT_INTERVAL) |
3258 | w->interval = MIN_STAT_INTERVAL; |
2148 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2149 | |
3259 | |
2150 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3260 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2151 | ev_set_priority (&w->timer, ev_priority (w)); |
3261 | ev_set_priority (&w->timer, ev_priority (w)); |
2152 | |
3262 | |
2153 | #if EV_USE_INOTIFY |
3263 | #if EV_USE_INOTIFY |
2154 | infy_init (EV_A); |
3264 | infy_init (EV_A); |
2155 | |
3265 | |
2156 | if (fs_fd >= 0) |
3266 | if (fs_fd >= 0) |
2157 | infy_add (EV_A_ w); |
3267 | infy_add (EV_A_ w); |
2158 | else |
3268 | else |
2159 | #endif |
3269 | #endif |
|
|
3270 | { |
2160 | ev_timer_start (EV_A_ &w->timer); |
3271 | ev_timer_again (EV_A_ &w->timer); |
|
|
3272 | ev_unref (EV_A); |
|
|
3273 | } |
2161 | |
3274 | |
2162 | ev_start (EV_A_ (W)w, 1); |
3275 | ev_start (EV_A_ (W)w, 1); |
|
|
3276 | |
|
|
3277 | EV_FREQUENT_CHECK; |
2163 | } |
3278 | } |
2164 | |
3279 | |
2165 | void |
3280 | void |
2166 | ev_stat_stop (EV_P_ ev_stat *w) |
3281 | ev_stat_stop (EV_P_ ev_stat *w) |
2167 | { |
3282 | { |
2168 | clear_pending (EV_A_ (W)w); |
3283 | clear_pending (EV_A_ (W)w); |
2169 | if (expect_false (!ev_is_active (w))) |
3284 | if (expect_false (!ev_is_active (w))) |
2170 | return; |
3285 | return; |
2171 | |
3286 | |
|
|
3287 | EV_FREQUENT_CHECK; |
|
|
3288 | |
2172 | #if EV_USE_INOTIFY |
3289 | #if EV_USE_INOTIFY |
2173 | infy_del (EV_A_ w); |
3290 | infy_del (EV_A_ w); |
2174 | #endif |
3291 | #endif |
|
|
3292 | |
|
|
3293 | if (ev_is_active (&w->timer)) |
|
|
3294 | { |
|
|
3295 | ev_ref (EV_A); |
2175 | ev_timer_stop (EV_A_ &w->timer); |
3296 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3297 | } |
2176 | |
3298 | |
2177 | ev_stop (EV_A_ (W)w); |
3299 | ev_stop (EV_A_ (W)w); |
|
|
3300 | |
|
|
3301 | EV_FREQUENT_CHECK; |
2178 | } |
3302 | } |
2179 | #endif |
3303 | #endif |
2180 | |
3304 | |
2181 | #if EV_IDLE_ENABLE |
3305 | #if EV_IDLE_ENABLE |
2182 | void |
3306 | void |
… | |
… | |
2184 | { |
3308 | { |
2185 | if (expect_false (ev_is_active (w))) |
3309 | if (expect_false (ev_is_active (w))) |
2186 | return; |
3310 | return; |
2187 | |
3311 | |
2188 | pri_adjust (EV_A_ (W)w); |
3312 | pri_adjust (EV_A_ (W)w); |
|
|
3313 | |
|
|
3314 | EV_FREQUENT_CHECK; |
2189 | |
3315 | |
2190 | { |
3316 | { |
2191 | int active = ++idlecnt [ABSPRI (w)]; |
3317 | int active = ++idlecnt [ABSPRI (w)]; |
2192 | |
3318 | |
2193 | ++idleall; |
3319 | ++idleall; |
2194 | ev_start (EV_A_ (W)w, active); |
3320 | ev_start (EV_A_ (W)w, active); |
2195 | |
3321 | |
2196 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3322 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2197 | idles [ABSPRI (w)][active - 1] = w; |
3323 | idles [ABSPRI (w)][active - 1] = w; |
2198 | } |
3324 | } |
|
|
3325 | |
|
|
3326 | EV_FREQUENT_CHECK; |
2199 | } |
3327 | } |
2200 | |
3328 | |
2201 | void |
3329 | void |
2202 | ev_idle_stop (EV_P_ ev_idle *w) |
3330 | ev_idle_stop (EV_P_ ev_idle *w) |
2203 | { |
3331 | { |
2204 | clear_pending (EV_A_ (W)w); |
3332 | clear_pending (EV_A_ (W)w); |
2205 | if (expect_false (!ev_is_active (w))) |
3333 | if (expect_false (!ev_is_active (w))) |
2206 | return; |
3334 | return; |
2207 | |
3335 | |
|
|
3336 | EV_FREQUENT_CHECK; |
|
|
3337 | |
2208 | { |
3338 | { |
2209 | int active = ((W)w)->active; |
3339 | int active = ev_active (w); |
2210 | |
3340 | |
2211 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3341 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2212 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3342 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2213 | |
3343 | |
2214 | ev_stop (EV_A_ (W)w); |
3344 | ev_stop (EV_A_ (W)w); |
2215 | --idleall; |
3345 | --idleall; |
2216 | } |
3346 | } |
2217 | } |
|
|
2218 | #endif |
|
|
2219 | |
3347 | |
|
|
3348 | EV_FREQUENT_CHECK; |
|
|
3349 | } |
|
|
3350 | #endif |
|
|
3351 | |
|
|
3352 | #if EV_PREPARE_ENABLE |
2220 | void |
3353 | void |
2221 | ev_prepare_start (EV_P_ ev_prepare *w) |
3354 | ev_prepare_start (EV_P_ ev_prepare *w) |
2222 | { |
3355 | { |
2223 | if (expect_false (ev_is_active (w))) |
3356 | if (expect_false (ev_is_active (w))) |
2224 | return; |
3357 | return; |
|
|
3358 | |
|
|
3359 | EV_FREQUENT_CHECK; |
2225 | |
3360 | |
2226 | ev_start (EV_A_ (W)w, ++preparecnt); |
3361 | ev_start (EV_A_ (W)w, ++preparecnt); |
2227 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3362 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2228 | prepares [preparecnt - 1] = w; |
3363 | prepares [preparecnt - 1] = w; |
|
|
3364 | |
|
|
3365 | EV_FREQUENT_CHECK; |
2229 | } |
3366 | } |
2230 | |
3367 | |
2231 | void |
3368 | void |
2232 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2233 | { |
3370 | { |
2234 | clear_pending (EV_A_ (W)w); |
3371 | clear_pending (EV_A_ (W)w); |
2235 | if (expect_false (!ev_is_active (w))) |
3372 | if (expect_false (!ev_is_active (w))) |
2236 | return; |
3373 | return; |
2237 | |
3374 | |
|
|
3375 | EV_FREQUENT_CHECK; |
|
|
3376 | |
2238 | { |
3377 | { |
2239 | int active = ((W)w)->active; |
3378 | int active = ev_active (w); |
|
|
3379 | |
2240 | prepares [active - 1] = prepares [--preparecnt]; |
3380 | prepares [active - 1] = prepares [--preparecnt]; |
2241 | ((W)prepares [active - 1])->active = active; |
3381 | ev_active (prepares [active - 1]) = active; |
2242 | } |
3382 | } |
2243 | |
3383 | |
2244 | ev_stop (EV_A_ (W)w); |
3384 | ev_stop (EV_A_ (W)w); |
2245 | } |
|
|
2246 | |
3385 | |
|
|
3386 | EV_FREQUENT_CHECK; |
|
|
3387 | } |
|
|
3388 | #endif |
|
|
3389 | |
|
|
3390 | #if EV_CHECK_ENABLE |
2247 | void |
3391 | void |
2248 | ev_check_start (EV_P_ ev_check *w) |
3392 | ev_check_start (EV_P_ ev_check *w) |
2249 | { |
3393 | { |
2250 | if (expect_false (ev_is_active (w))) |
3394 | if (expect_false (ev_is_active (w))) |
2251 | return; |
3395 | return; |
|
|
3396 | |
|
|
3397 | EV_FREQUENT_CHECK; |
2252 | |
3398 | |
2253 | ev_start (EV_A_ (W)w, ++checkcnt); |
3399 | ev_start (EV_A_ (W)w, ++checkcnt); |
2254 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3400 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2255 | checks [checkcnt - 1] = w; |
3401 | checks [checkcnt - 1] = w; |
|
|
3402 | |
|
|
3403 | EV_FREQUENT_CHECK; |
2256 | } |
3404 | } |
2257 | |
3405 | |
2258 | void |
3406 | void |
2259 | ev_check_stop (EV_P_ ev_check *w) |
3407 | ev_check_stop (EV_P_ ev_check *w) |
2260 | { |
3408 | { |
2261 | clear_pending (EV_A_ (W)w); |
3409 | clear_pending (EV_A_ (W)w); |
2262 | if (expect_false (!ev_is_active (w))) |
3410 | if (expect_false (!ev_is_active (w))) |
2263 | return; |
3411 | return; |
2264 | |
3412 | |
|
|
3413 | EV_FREQUENT_CHECK; |
|
|
3414 | |
2265 | { |
3415 | { |
2266 | int active = ((W)w)->active; |
3416 | int active = ev_active (w); |
|
|
3417 | |
2267 | checks [active - 1] = checks [--checkcnt]; |
3418 | checks [active - 1] = checks [--checkcnt]; |
2268 | ((W)checks [active - 1])->active = active; |
3419 | ev_active (checks [active - 1]) = active; |
2269 | } |
3420 | } |
2270 | |
3421 | |
2271 | ev_stop (EV_A_ (W)w); |
3422 | ev_stop (EV_A_ (W)w); |
|
|
3423 | |
|
|
3424 | EV_FREQUENT_CHECK; |
2272 | } |
3425 | } |
|
|
3426 | #endif |
2273 | |
3427 | |
2274 | #if EV_EMBED_ENABLE |
3428 | #if EV_EMBED_ENABLE |
2275 | void noinline |
3429 | void noinline |
2276 | ev_embed_sweep (EV_P_ ev_embed *w) |
3430 | ev_embed_sweep (EV_P_ ev_embed *w) |
2277 | { |
3431 | { |
2278 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3432 | ev_run (w->other, EVRUN_NOWAIT); |
2279 | } |
3433 | } |
2280 | |
3434 | |
2281 | static void |
3435 | static void |
2282 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3436 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2283 | { |
3437 | { |
2284 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3438 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2285 | |
3439 | |
2286 | if (ev_cb (w)) |
3440 | if (ev_cb (w)) |
2287 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3441 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2288 | else |
3442 | else |
2289 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3443 | ev_run (w->other, EVRUN_NOWAIT); |
2290 | } |
3444 | } |
2291 | |
3445 | |
2292 | static void |
3446 | static void |
2293 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2294 | { |
3448 | { |
2295 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3449 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2296 | |
3450 | |
2297 | { |
3451 | { |
2298 | struct ev_loop *loop = w->other; |
3452 | EV_P = w->other; |
2299 | |
3453 | |
2300 | while (fdchangecnt) |
3454 | while (fdchangecnt) |
2301 | { |
3455 | { |
2302 | fd_reify (EV_A); |
3456 | fd_reify (EV_A); |
2303 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3457 | ev_run (EV_A_ EVRUN_NOWAIT); |
2304 | } |
3458 | } |
2305 | } |
3459 | } |
|
|
3460 | } |
|
|
3461 | |
|
|
3462 | static void |
|
|
3463 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3464 | { |
|
|
3465 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3466 | |
|
|
3467 | ev_embed_stop (EV_A_ w); |
|
|
3468 | |
|
|
3469 | { |
|
|
3470 | EV_P = w->other; |
|
|
3471 | |
|
|
3472 | ev_loop_fork (EV_A); |
|
|
3473 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3474 | } |
|
|
3475 | |
|
|
3476 | ev_embed_start (EV_A_ w); |
2306 | } |
3477 | } |
2307 | |
3478 | |
2308 | #if 0 |
3479 | #if 0 |
2309 | static void |
3480 | static void |
2310 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3481 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2318 | { |
3489 | { |
2319 | if (expect_false (ev_is_active (w))) |
3490 | if (expect_false (ev_is_active (w))) |
2320 | return; |
3491 | return; |
2321 | |
3492 | |
2322 | { |
3493 | { |
2323 | struct ev_loop *loop = w->other; |
3494 | EV_P = w->other; |
2324 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3495 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2325 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3496 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2326 | } |
3497 | } |
|
|
3498 | |
|
|
3499 | EV_FREQUENT_CHECK; |
2327 | |
3500 | |
2328 | ev_set_priority (&w->io, ev_priority (w)); |
3501 | ev_set_priority (&w->io, ev_priority (w)); |
2329 | ev_io_start (EV_A_ &w->io); |
3502 | ev_io_start (EV_A_ &w->io); |
2330 | |
3503 | |
2331 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3504 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2332 | ev_set_priority (&w->prepare, EV_MINPRI); |
3505 | ev_set_priority (&w->prepare, EV_MINPRI); |
2333 | ev_prepare_start (EV_A_ &w->prepare); |
3506 | ev_prepare_start (EV_A_ &w->prepare); |
2334 | |
3507 | |
|
|
3508 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3509 | ev_fork_start (EV_A_ &w->fork); |
|
|
3510 | |
2335 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3511 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2336 | |
3512 | |
2337 | ev_start (EV_A_ (W)w, 1); |
3513 | ev_start (EV_A_ (W)w, 1); |
|
|
3514 | |
|
|
3515 | EV_FREQUENT_CHECK; |
2338 | } |
3516 | } |
2339 | |
3517 | |
2340 | void |
3518 | void |
2341 | ev_embed_stop (EV_P_ ev_embed *w) |
3519 | ev_embed_stop (EV_P_ ev_embed *w) |
2342 | { |
3520 | { |
2343 | clear_pending (EV_A_ (W)w); |
3521 | clear_pending (EV_A_ (W)w); |
2344 | if (expect_false (!ev_is_active (w))) |
3522 | if (expect_false (!ev_is_active (w))) |
2345 | return; |
3523 | return; |
2346 | |
3524 | |
|
|
3525 | EV_FREQUENT_CHECK; |
|
|
3526 | |
2347 | ev_io_stop (EV_A_ &w->io); |
3527 | ev_io_stop (EV_A_ &w->io); |
2348 | ev_prepare_stop (EV_A_ &w->prepare); |
3528 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3529 | ev_fork_stop (EV_A_ &w->fork); |
2349 | |
3530 | |
2350 | ev_stop (EV_A_ (W)w); |
3531 | ev_stop (EV_A_ (W)w); |
|
|
3532 | |
|
|
3533 | EV_FREQUENT_CHECK; |
2351 | } |
3534 | } |
2352 | #endif |
3535 | #endif |
2353 | |
3536 | |
2354 | #if EV_FORK_ENABLE |
3537 | #if EV_FORK_ENABLE |
2355 | void |
3538 | void |
2356 | ev_fork_start (EV_P_ ev_fork *w) |
3539 | ev_fork_start (EV_P_ ev_fork *w) |
2357 | { |
3540 | { |
2358 | if (expect_false (ev_is_active (w))) |
3541 | if (expect_false (ev_is_active (w))) |
2359 | return; |
3542 | return; |
|
|
3543 | |
|
|
3544 | EV_FREQUENT_CHECK; |
2360 | |
3545 | |
2361 | ev_start (EV_A_ (W)w, ++forkcnt); |
3546 | ev_start (EV_A_ (W)w, ++forkcnt); |
2362 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3547 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2363 | forks [forkcnt - 1] = w; |
3548 | forks [forkcnt - 1] = w; |
|
|
3549 | |
|
|
3550 | EV_FREQUENT_CHECK; |
2364 | } |
3551 | } |
2365 | |
3552 | |
2366 | void |
3553 | void |
2367 | ev_fork_stop (EV_P_ ev_fork *w) |
3554 | ev_fork_stop (EV_P_ ev_fork *w) |
2368 | { |
3555 | { |
2369 | clear_pending (EV_A_ (W)w); |
3556 | clear_pending (EV_A_ (W)w); |
2370 | if (expect_false (!ev_is_active (w))) |
3557 | if (expect_false (!ev_is_active (w))) |
2371 | return; |
3558 | return; |
2372 | |
3559 | |
|
|
3560 | EV_FREQUENT_CHECK; |
|
|
3561 | |
2373 | { |
3562 | { |
2374 | int active = ((W)w)->active; |
3563 | int active = ev_active (w); |
|
|
3564 | |
2375 | forks [active - 1] = forks [--forkcnt]; |
3565 | forks [active - 1] = forks [--forkcnt]; |
2376 | ((W)forks [active - 1])->active = active; |
3566 | ev_active (forks [active - 1]) = active; |
2377 | } |
3567 | } |
2378 | |
3568 | |
2379 | ev_stop (EV_A_ (W)w); |
3569 | ev_stop (EV_A_ (W)w); |
|
|
3570 | |
|
|
3571 | EV_FREQUENT_CHECK; |
|
|
3572 | } |
|
|
3573 | #endif |
|
|
3574 | |
|
|
3575 | #if EV_ASYNC_ENABLE |
|
|
3576 | void |
|
|
3577 | ev_async_start (EV_P_ ev_async *w) |
|
|
3578 | { |
|
|
3579 | if (expect_false (ev_is_active (w))) |
|
|
3580 | return; |
|
|
3581 | |
|
|
3582 | w->sent = 0; |
|
|
3583 | |
|
|
3584 | evpipe_init (EV_A); |
|
|
3585 | |
|
|
3586 | EV_FREQUENT_CHECK; |
|
|
3587 | |
|
|
3588 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3589 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3590 | asyncs [asynccnt - 1] = w; |
|
|
3591 | |
|
|
3592 | EV_FREQUENT_CHECK; |
|
|
3593 | } |
|
|
3594 | |
|
|
3595 | void |
|
|
3596 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3597 | { |
|
|
3598 | clear_pending (EV_A_ (W)w); |
|
|
3599 | if (expect_false (!ev_is_active (w))) |
|
|
3600 | return; |
|
|
3601 | |
|
|
3602 | EV_FREQUENT_CHECK; |
|
|
3603 | |
|
|
3604 | { |
|
|
3605 | int active = ev_active (w); |
|
|
3606 | |
|
|
3607 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3608 | ev_active (asyncs [active - 1]) = active; |
|
|
3609 | } |
|
|
3610 | |
|
|
3611 | ev_stop (EV_A_ (W)w); |
|
|
3612 | |
|
|
3613 | EV_FREQUENT_CHECK; |
|
|
3614 | } |
|
|
3615 | |
|
|
3616 | void |
|
|
3617 | ev_async_send (EV_P_ ev_async *w) |
|
|
3618 | { |
|
|
3619 | w->sent = 1; |
|
|
3620 | evpipe_write (EV_A_ &async_pending); |
2380 | } |
3621 | } |
2381 | #endif |
3622 | #endif |
2382 | |
3623 | |
2383 | /*****************************************************************************/ |
3624 | /*****************************************************************************/ |
2384 | |
3625 | |
… | |
… | |
2394 | once_cb (EV_P_ struct ev_once *once, int revents) |
3635 | once_cb (EV_P_ struct ev_once *once, int revents) |
2395 | { |
3636 | { |
2396 | void (*cb)(int revents, void *arg) = once->cb; |
3637 | void (*cb)(int revents, void *arg) = once->cb; |
2397 | void *arg = once->arg; |
3638 | void *arg = once->arg; |
2398 | |
3639 | |
2399 | ev_io_stop (EV_A_ &once->io); |
3640 | ev_io_stop (EV_A_ &once->io); |
2400 | ev_timer_stop (EV_A_ &once->to); |
3641 | ev_timer_stop (EV_A_ &once->to); |
2401 | ev_free (once); |
3642 | ev_free (once); |
2402 | |
3643 | |
2403 | cb (revents, arg); |
3644 | cb (revents, arg); |
2404 | } |
3645 | } |
2405 | |
3646 | |
2406 | static void |
3647 | static void |
2407 | once_cb_io (EV_P_ ev_io *w, int revents) |
3648 | once_cb_io (EV_P_ ev_io *w, int revents) |
2408 | { |
3649 | { |
2409 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3650 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3651 | |
|
|
3652 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2410 | } |
3653 | } |
2411 | |
3654 | |
2412 | static void |
3655 | static void |
2413 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3656 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2414 | { |
3657 | { |
2415 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3658 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3659 | |
|
|
3660 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2416 | } |
3661 | } |
2417 | |
3662 | |
2418 | void |
3663 | void |
2419 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3664 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2420 | { |
3665 | { |
2421 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3666 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2422 | |
3667 | |
2423 | if (expect_false (!once)) |
3668 | if (expect_false (!once)) |
2424 | { |
3669 | { |
2425 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3670 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2426 | return; |
3671 | return; |
2427 | } |
3672 | } |
2428 | |
3673 | |
2429 | once->cb = cb; |
3674 | once->cb = cb; |
2430 | once->arg = arg; |
3675 | once->arg = arg; |
… | |
… | |
2442 | ev_timer_set (&once->to, timeout, 0.); |
3687 | ev_timer_set (&once->to, timeout, 0.); |
2443 | ev_timer_start (EV_A_ &once->to); |
3688 | ev_timer_start (EV_A_ &once->to); |
2444 | } |
3689 | } |
2445 | } |
3690 | } |
2446 | |
3691 | |
|
|
3692 | /*****************************************************************************/ |
|
|
3693 | |
|
|
3694 | #if EV_WALK_ENABLE |
|
|
3695 | void |
|
|
3696 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3697 | { |
|
|
3698 | int i, j; |
|
|
3699 | ev_watcher_list *wl, *wn; |
|
|
3700 | |
|
|
3701 | if (types & (EV_IO | EV_EMBED)) |
|
|
3702 | for (i = 0; i < anfdmax; ++i) |
|
|
3703 | for (wl = anfds [i].head; wl; ) |
|
|
3704 | { |
|
|
3705 | wn = wl->next; |
|
|
3706 | |
|
|
3707 | #if EV_EMBED_ENABLE |
|
|
3708 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3709 | { |
|
|
3710 | if (types & EV_EMBED) |
|
|
3711 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3712 | } |
|
|
3713 | else |
|
|
3714 | #endif |
|
|
3715 | #if EV_USE_INOTIFY |
|
|
3716 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3717 | ; |
|
|
3718 | else |
|
|
3719 | #endif |
|
|
3720 | if ((ev_io *)wl != &pipe_w) |
|
|
3721 | if (types & EV_IO) |
|
|
3722 | cb (EV_A_ EV_IO, wl); |
|
|
3723 | |
|
|
3724 | wl = wn; |
|
|
3725 | } |
|
|
3726 | |
|
|
3727 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3728 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3729 | #if EV_STAT_ENABLE |
|
|
3730 | /*TODO: timer is not always active*/ |
|
|
3731 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3732 | { |
|
|
3733 | if (types & EV_STAT) |
|
|
3734 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3735 | } |
|
|
3736 | else |
|
|
3737 | #endif |
|
|
3738 | if (types & EV_TIMER) |
|
|
3739 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3740 | |
|
|
3741 | #if EV_PERIODIC_ENABLE |
|
|
3742 | if (types & EV_PERIODIC) |
|
|
3743 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3744 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3745 | #endif |
|
|
3746 | |
|
|
3747 | #if EV_IDLE_ENABLE |
|
|
3748 | if (types & EV_IDLE) |
|
|
3749 | for (j = NUMPRI; i--; ) |
|
|
3750 | for (i = idlecnt [j]; i--; ) |
|
|
3751 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3752 | #endif |
|
|
3753 | |
|
|
3754 | #if EV_FORK_ENABLE |
|
|
3755 | if (types & EV_FORK) |
|
|
3756 | for (i = forkcnt; i--; ) |
|
|
3757 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3758 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3759 | #endif |
|
|
3760 | |
|
|
3761 | #if EV_ASYNC_ENABLE |
|
|
3762 | if (types & EV_ASYNC) |
|
|
3763 | for (i = asynccnt; i--; ) |
|
|
3764 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3765 | #endif |
|
|
3766 | |
|
|
3767 | #if EV_PREPARE_ENABLE |
|
|
3768 | if (types & EV_PREPARE) |
|
|
3769 | for (i = preparecnt; i--; ) |
|
|
3770 | # if EV_EMBED_ENABLE |
|
|
3771 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3772 | # endif |
|
|
3773 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3774 | #endif |
|
|
3775 | |
|
|
3776 | #if EV_CHECK_ENABLE |
|
|
3777 | if (types & EV_CHECK) |
|
|
3778 | for (i = checkcnt; i--; ) |
|
|
3779 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3780 | #endif |
|
|
3781 | |
|
|
3782 | #if EV_SIGNAL_ENABLE |
|
|
3783 | if (types & EV_SIGNAL) |
|
|
3784 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3785 | for (wl = signals [i].head; wl; ) |
|
|
3786 | { |
|
|
3787 | wn = wl->next; |
|
|
3788 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3789 | wl = wn; |
|
|
3790 | } |
|
|
3791 | #endif |
|
|
3792 | |
|
|
3793 | #if EV_CHILD_ENABLE |
|
|
3794 | if (types & EV_CHILD) |
|
|
3795 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3796 | for (wl = childs [i]; wl; ) |
|
|
3797 | { |
|
|
3798 | wn = wl->next; |
|
|
3799 | cb (EV_A_ EV_CHILD, wl); |
|
|
3800 | wl = wn; |
|
|
3801 | } |
|
|
3802 | #endif |
|
|
3803 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3804 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3805 | } |
|
|
3806 | #endif |
|
|
3807 | |
2447 | #if EV_MULTIPLICITY |
3808 | #if EV_MULTIPLICITY |
2448 | #include "ev_wrap.h" |
3809 | #include "ev_wrap.h" |
2449 | #endif |
3810 | #endif |
2450 | |
3811 | |
2451 | #ifdef __cplusplus |
3812 | #ifdef __cplusplus |