1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
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 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
65 | # endif |
79 | # endif |
66 | # endif |
80 | # endif |
67 | |
81 | |
68 | # ifndef EV_USE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
70 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
71 | # else |
85 | # else |
72 | # define EV_USE_NANOSLEEP 0 |
86 | # define EV_USE_NANOSLEEP 0 |
73 | # endif |
87 | # endif |
74 | # endif |
88 | # endif |
75 | |
89 | |
76 | # ifndef EV_USE_SELECT |
90 | # ifndef EV_USE_SELECT |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
78 | # define EV_USE_SELECT 1 |
92 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
79 | # else |
93 | # else |
80 | # define EV_USE_SELECT 0 |
94 | # define EV_USE_SELECT 0 |
81 | # endif |
95 | # endif |
82 | # endif |
96 | # endif |
83 | |
97 | |
84 | # ifndef EV_USE_POLL |
98 | # ifndef EV_USE_POLL |
85 | # if HAVE_POLL && HAVE_POLL_H |
99 | # if HAVE_POLL && HAVE_POLL_H |
86 | # define EV_USE_POLL 1 |
100 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
87 | # else |
101 | # else |
88 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
89 | # endif |
103 | # endif |
90 | # endif |
104 | # endif |
91 | |
105 | |
92 | # ifndef EV_USE_EPOLL |
106 | # ifndef EV_USE_EPOLL |
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
108 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
95 | # else |
109 | # else |
96 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
97 | # endif |
111 | # endif |
98 | # endif |
112 | # endif |
99 | |
113 | |
100 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
102 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
103 | # else |
117 | # else |
104 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
105 | # endif |
119 | # endif |
106 | # endif |
120 | # endif |
107 | |
121 | |
108 | # ifndef EV_USE_PORT |
122 | # ifndef EV_USE_PORT |
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
124 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
111 | # else |
125 | # else |
112 | # define EV_USE_PORT 0 |
126 | # define EV_USE_PORT 0 |
113 | # endif |
127 | # endif |
114 | # endif |
128 | # endif |
115 | |
129 | |
116 | # ifndef EV_USE_INOTIFY |
130 | # ifndef EV_USE_INOTIFY |
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
132 | # define EV_USE_INOTIFY EV_FEATURE_OS |
119 | # else |
133 | # else |
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
121 | # endif |
135 | # endif |
122 | # endif |
136 | # endif |
123 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
124 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
125 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
126 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD EV_FEATURE_OS |
127 | # else |
149 | # else |
128 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
129 | # endif |
151 | # endif |
130 | # endif |
152 | # endif |
131 | |
153 | |
132 | #endif |
154 | #endif |
133 | |
155 | |
134 | #include <math.h> |
156 | #include <math.h> |
135 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
136 | #include <fcntl.h> |
159 | #include <fcntl.h> |
137 | #include <stddef.h> |
160 | #include <stddef.h> |
138 | |
161 | |
139 | #include <stdio.h> |
162 | #include <stdio.h> |
140 | |
163 | |
141 | #include <assert.h> |
164 | #include <assert.h> |
142 | #include <errno.h> |
165 | #include <errno.h> |
143 | #include <sys/types.h> |
166 | #include <sys/types.h> |
144 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
145 | |
169 | |
146 | #include <signal.h> |
170 | #include <signal.h> |
147 | |
171 | |
148 | #ifdef EV_H |
172 | #ifdef EV_H |
149 | # include EV_H |
173 | # include EV_H |
… | |
… | |
154 | #ifndef _WIN32 |
178 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
179 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
180 | # include <sys/wait.h> |
157 | # include <unistd.h> |
181 | # include <unistd.h> |
158 | #else |
182 | #else |
|
|
183 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
185 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
188 | # endif |
|
|
189 | # undef EV_AVOID_STDIO |
164 | #endif |
190 | #endif |
165 | |
191 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
193 | |
|
|
194 | /* try to deduce the maximum number of signals on this platform */ |
|
|
195 | #if defined (EV_NSIG) |
|
|
196 | /* use what's provided */ |
|
|
197 | #elif defined (NSIG) |
|
|
198 | # define EV_NSIG (NSIG) |
|
|
199 | #elif defined(_NSIG) |
|
|
200 | # define EV_NSIG (_NSIG) |
|
|
201 | #elif defined (SIGMAX) |
|
|
202 | # define EV_NSIG (SIGMAX+1) |
|
|
203 | #elif defined (SIG_MAX) |
|
|
204 | # define EV_NSIG (SIG_MAX+1) |
|
|
205 | #elif defined (_SIG_MAX) |
|
|
206 | # define EV_NSIG (_SIG_MAX+1) |
|
|
207 | #elif defined (MAXSIG) |
|
|
208 | # define EV_NSIG (MAXSIG+1) |
|
|
209 | #elif defined (MAX_SIG) |
|
|
210 | # define EV_NSIG (MAX_SIG+1) |
|
|
211 | #elif defined (SIGARRAYSIZE) |
|
|
212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
213 | #elif defined (_sys_nsig) |
|
|
214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
215 | #else |
|
|
216 | # error "unable to find value for NSIG, please report" |
|
|
217 | /* to make it compile regardless, just remove the above line, */ |
|
|
218 | /* but consider reporting it, too! :) */ |
|
|
219 | # define EV_NSIG 65 |
|
|
220 | #endif |
|
|
221 | |
|
|
222 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
223 | # if __linux && __GLIBC__ >= 2 |
|
|
224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
225 | # else |
|
|
226 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
227 | # endif |
|
|
228 | #endif |
|
|
229 | |
168 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
|
|
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
233 | # else |
169 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
|
|
235 | # endif |
170 | #endif |
236 | #endif |
171 | |
237 | |
172 | #ifndef EV_USE_REALTIME |
238 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
240 | #endif |
175 | |
241 | |
176 | #ifndef EV_USE_NANOSLEEP |
242 | #ifndef EV_USE_NANOSLEEP |
|
|
243 | # if _POSIX_C_SOURCE >= 199309L |
|
|
244 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
245 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
246 | # define EV_USE_NANOSLEEP 0 |
|
|
247 | # endif |
178 | #endif |
248 | #endif |
179 | |
249 | |
180 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
252 | #endif |
183 | |
253 | |
184 | #ifndef EV_USE_POLL |
254 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
255 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
256 | # define EV_USE_POLL 0 |
187 | # else |
257 | # else |
188 | # define EV_USE_POLL 1 |
258 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
259 | # endif |
190 | #endif |
260 | #endif |
191 | |
261 | |
192 | #ifndef EV_USE_EPOLL |
262 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
263 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
264 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
265 | # else |
196 | # define EV_USE_EPOLL 0 |
266 | # define EV_USE_EPOLL 0 |
197 | # endif |
267 | # endif |
198 | #endif |
268 | #endif |
199 | |
269 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
275 | # define EV_USE_PORT 0 |
206 | #endif |
276 | #endif |
207 | |
277 | |
208 | #ifndef EV_USE_INOTIFY |
278 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
281 | # else |
212 | # define EV_USE_INOTIFY 0 |
282 | # define EV_USE_INOTIFY 0 |
213 | # endif |
283 | # endif |
214 | #endif |
284 | #endif |
215 | |
285 | |
216 | #ifndef EV_PID_HASHSIZE |
286 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
287 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
288 | #endif |
223 | |
289 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
290 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
291 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
292 | #endif |
231 | |
293 | |
232 | #ifndef EV_USE_EVENTFD |
294 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
295 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
296 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
297 | # else |
236 | # define EV_USE_EVENTFD 0 |
298 | # define EV_USE_EVENTFD 0 |
237 | # endif |
299 | # endif |
238 | #endif |
300 | #endif |
239 | |
301 | |
|
|
302 | #ifndef EV_USE_SIGNALFD |
|
|
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
304 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
305 | # else |
|
|
306 | # define EV_USE_SIGNALFD 0 |
|
|
307 | # endif |
|
|
308 | #endif |
|
|
309 | |
|
|
310 | #if 0 /* debugging */ |
|
|
311 | # define EV_VERIFY 3 |
|
|
312 | # define EV_USE_4HEAP 1 |
|
|
313 | # define EV_HEAP_CACHE_AT 1 |
|
|
314 | #endif |
|
|
315 | |
|
|
316 | #ifndef EV_VERIFY |
|
|
317 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
318 | #endif |
|
|
319 | |
240 | #ifndef EV_USE_4HEAP |
320 | #ifndef EV_USE_4HEAP |
241 | # define EV_USE_4HEAP !EV_MINIMAL |
321 | # define EV_USE_4HEAP EV_FEATURE_DATA |
242 | #endif |
322 | #endif |
243 | |
323 | |
244 | #ifndef EV_HEAP_CACHE_AT |
324 | #ifndef EV_HEAP_CACHE_AT |
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
326 | #endif |
|
|
327 | |
|
|
328 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
329 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
330 | #if EV_USE_CLOCK_SYSCALL |
|
|
331 | # include <syscall.h> |
|
|
332 | # ifdef SYS_clock_gettime |
|
|
333 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
334 | # undef EV_USE_MONOTONIC |
|
|
335 | # define EV_USE_MONOTONIC 1 |
|
|
336 | # else |
|
|
337 | # undef EV_USE_CLOCK_SYSCALL |
|
|
338 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
339 | # endif |
246 | #endif |
340 | #endif |
247 | |
341 | |
248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
343 | |
|
|
344 | #ifdef _AIX |
|
|
345 | /* AIX has a completely broken poll.h header */ |
|
|
346 | # undef EV_USE_POLL |
|
|
347 | # define EV_USE_POLL 0 |
|
|
348 | #endif |
249 | |
349 | |
250 | #ifndef CLOCK_MONOTONIC |
350 | #ifndef CLOCK_MONOTONIC |
251 | # undef EV_USE_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
252 | # define EV_USE_MONOTONIC 0 |
352 | # define EV_USE_MONOTONIC 0 |
253 | #endif |
353 | #endif |
… | |
… | |
267 | # include <sys/select.h> |
367 | # include <sys/select.h> |
268 | # endif |
368 | # endif |
269 | #endif |
369 | #endif |
270 | |
370 | |
271 | #if EV_USE_INOTIFY |
371 | #if EV_USE_INOTIFY |
|
|
372 | # include <sys/utsname.h> |
|
|
373 | # include <sys/statfs.h> |
272 | # include <sys/inotify.h> |
374 | # include <sys/inotify.h> |
|
|
375 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
376 | # ifndef IN_DONT_FOLLOW |
|
|
377 | # undef EV_USE_INOTIFY |
|
|
378 | # define EV_USE_INOTIFY 0 |
|
|
379 | # endif |
273 | #endif |
380 | #endif |
274 | |
381 | |
275 | #if EV_SELECT_IS_WINSOCKET |
382 | #if EV_SELECT_IS_WINSOCKET |
276 | # include <winsock.h> |
383 | # include <winsock.h> |
277 | #endif |
384 | #endif |
278 | |
385 | |
279 | #if EV_USE_EVENTFD |
386 | #if EV_USE_EVENTFD |
280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
387 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
281 | # include <stdint.h> |
388 | # include <stdint.h> |
|
|
389 | # ifndef EFD_NONBLOCK |
|
|
390 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
391 | # endif |
|
|
392 | # ifndef EFD_CLOEXEC |
|
|
393 | # ifdef O_CLOEXEC |
|
|
394 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
395 | # else |
|
|
396 | # define EFD_CLOEXEC 02000000 |
|
|
397 | # endif |
|
|
398 | # endif |
282 | # ifdef __cplusplus |
399 | # ifdef __cplusplus |
283 | extern "C" { |
400 | extern "C" { |
284 | # endif |
401 | # endif |
285 | int eventfd (unsigned int initval, int flags); |
402 | int (eventfd) (unsigned int initval, int flags); |
286 | # ifdef __cplusplus |
403 | # ifdef __cplusplus |
287 | } |
404 | } |
288 | # endif |
405 | # endif |
289 | #endif |
406 | #endif |
290 | |
407 | |
|
|
408 | #if EV_USE_SIGNALFD |
|
|
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
410 | # include <stdint.h> |
|
|
411 | # ifndef SFD_NONBLOCK |
|
|
412 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
413 | # endif |
|
|
414 | # ifndef SFD_CLOEXEC |
|
|
415 | # ifdef O_CLOEXEC |
|
|
416 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
417 | # else |
|
|
418 | # define SFD_CLOEXEC 02000000 |
|
|
419 | # endif |
|
|
420 | # endif |
|
|
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
425 | |
|
|
426 | struct signalfd_siginfo |
|
|
427 | { |
|
|
428 | uint32_t ssi_signo; |
|
|
429 | char pad[128 - sizeof (uint32_t)]; |
|
|
430 | }; |
|
|
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
|
|
434 | #endif |
|
|
435 | |
|
|
436 | |
291 | /**/ |
437 | /**/ |
292 | |
438 | |
293 | /* undefined or zero: no verification done or available */ |
|
|
294 | /* 1 or higher: ev_loop_verify function available */ |
|
|
295 | /* 2 or higher: ev_loop_verify is called frequently */ |
|
|
296 | #define EV_VERIFY 1 |
|
|
297 | |
|
|
298 | #if EV_VERIFY > 1 |
439 | #if EV_VERIFY >= 3 |
299 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
440 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
300 | #else |
441 | #else |
301 | # define EV_FREQUENT_CHECK do { } while (0) |
442 | # define EV_FREQUENT_CHECK do { } while (0) |
302 | #endif |
443 | #endif |
303 | |
444 | |
304 | /* |
445 | /* |
… | |
… | |
311 | */ |
452 | */ |
312 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
313 | |
454 | |
314 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
315 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
316 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
317 | |
457 | |
318 | #if __GNUC__ >= 4 |
458 | #if __GNUC__ >= 4 |
319 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
320 | # define noinline __attribute__ ((noinline)) |
460 | # define noinline __attribute__ ((noinline)) |
321 | #else |
461 | #else |
… | |
… | |
328 | |
468 | |
329 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
330 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
331 | #define inline_size static inline |
471 | #define inline_size static inline |
332 | |
472 | |
333 | #if EV_MINIMAL |
473 | #if EV_FEATURE_CODE |
|
|
474 | # define inline_speed static inline |
|
|
475 | #else |
334 | # define inline_speed static noinline |
476 | # define inline_speed static noinline |
|
|
477 | #endif |
|
|
478 | |
|
|
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
480 | |
|
|
481 | #if EV_MINPRI == EV_MAXPRI |
|
|
482 | # define ABSPRI(w) (((W)w), 0) |
335 | #else |
483 | #else |
336 | # define inline_speed static inline |
|
|
337 | #endif |
|
|
338 | |
|
|
339 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
340 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
484 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
485 | #endif |
341 | |
486 | |
342 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
487 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
343 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
488 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
344 | |
489 | |
345 | typedef ev_watcher *W; |
490 | typedef ev_watcher *W; |
… | |
… | |
347 | typedef ev_watcher_time *WT; |
492 | typedef ev_watcher_time *WT; |
348 | |
493 | |
349 | #define ev_active(w) ((W)(w))->active |
494 | #define ev_active(w) ((W)(w))->active |
350 | #define ev_at(w) ((WT)(w))->at |
495 | #define ev_at(w) ((WT)(w))->at |
351 | |
496 | |
352 | #if EV_USE_MONOTONIC |
497 | #if EV_USE_REALTIME |
353 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
498 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
354 | /* giving it a reasonably high chance of working on typical architetcures */ |
499 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
500 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
501 | #endif |
|
|
502 | |
|
|
503 | #if EV_USE_MONOTONIC |
355 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
505 | #endif |
|
|
506 | |
|
|
507 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
508 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
509 | #endif |
|
|
510 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
511 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
512 | #endif |
|
|
513 | #ifndef EV_WIN32_CLOSE_FD |
|
|
514 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
356 | #endif |
515 | #endif |
357 | |
516 | |
358 | #ifdef _WIN32 |
517 | #ifdef _WIN32 |
359 | # include "ev_win32.c" |
518 | # include "ev_win32.c" |
360 | #endif |
519 | #endif |
361 | |
520 | |
362 | /*****************************************************************************/ |
521 | /*****************************************************************************/ |
363 | |
522 | |
|
|
523 | #if EV_AVOID_STDIO |
|
|
524 | static void noinline |
|
|
525 | ev_printerr (const char *msg) |
|
|
526 | { |
|
|
527 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
528 | } |
|
|
529 | #endif |
|
|
530 | |
364 | static void (*syserr_cb)(const char *msg); |
531 | static void (*syserr_cb)(const char *msg); |
365 | |
532 | |
366 | void |
533 | void |
367 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
368 | { |
535 | { |
369 | syserr_cb = cb; |
536 | syserr_cb = cb; |
370 | } |
537 | } |
371 | |
538 | |
372 | static void noinline |
539 | static void noinline |
373 | syserr (const char *msg) |
540 | ev_syserr (const char *msg) |
374 | { |
541 | { |
375 | if (!msg) |
542 | if (!msg) |
376 | msg = "(libev) system error"; |
543 | msg = "(libev) system error"; |
377 | |
544 | |
378 | if (syserr_cb) |
545 | if (syserr_cb) |
379 | syserr_cb (msg); |
546 | syserr_cb (msg); |
380 | else |
547 | else |
381 | { |
548 | { |
|
|
549 | #if EV_AVOID_STDIO |
|
|
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
|
|
553 | ev_printerr (": "); |
|
|
554 | ev_printerr (err); |
|
|
555 | ev_printerr ("\n"); |
|
|
556 | #else |
382 | perror (msg); |
557 | perror (msg); |
|
|
558 | #endif |
383 | abort (); |
559 | abort (); |
384 | } |
560 | } |
385 | } |
561 | } |
386 | |
562 | |
387 | static void * |
563 | static void * |
388 | ev_realloc_emul (void *ptr, long size) |
564 | ev_realloc_emul (void *ptr, long size) |
389 | { |
565 | { |
|
|
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
390 | /* some systems, notably openbsd and darwin, fail to properly |
569 | /* some systems, notably openbsd and darwin, fail to properly |
391 | * implement realloc (x, 0) (as required by both ansi c-98 and |
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
392 | * the single unix specification, so work around them here. |
571 | * the single unix specification, so work around them here. |
393 | */ |
572 | */ |
394 | |
573 | |
395 | if (size) |
574 | if (size) |
396 | return realloc (ptr, size); |
575 | return realloc (ptr, size); |
397 | |
576 | |
398 | free (ptr); |
577 | free (ptr); |
399 | return 0; |
578 | return 0; |
|
|
579 | #endif |
400 | } |
580 | } |
401 | |
581 | |
402 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
403 | |
583 | |
404 | void |
584 | void |
… | |
… | |
412 | { |
592 | { |
413 | ptr = alloc (ptr, size); |
593 | ptr = alloc (ptr, size); |
414 | |
594 | |
415 | if (!ptr && size) |
595 | if (!ptr && size) |
416 | { |
596 | { |
|
|
597 | #if EV_AVOID_STDIO |
|
|
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
599 | #else |
417 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
601 | #endif |
418 | abort (); |
602 | abort (); |
419 | } |
603 | } |
420 | |
604 | |
421 | return ptr; |
605 | return ptr; |
422 | } |
606 | } |
… | |
… | |
424 | #define ev_malloc(size) ev_realloc (0, (size)) |
608 | #define ev_malloc(size) ev_realloc (0, (size)) |
425 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
609 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
426 | |
610 | |
427 | /*****************************************************************************/ |
611 | /*****************************************************************************/ |
428 | |
612 | |
|
|
613 | /* set in reify when reification needed */ |
|
|
614 | #define EV_ANFD_REIFY 1 |
|
|
615 | |
|
|
616 | /* file descriptor info structure */ |
429 | typedef struct |
617 | typedef struct |
430 | { |
618 | { |
431 | WL head; |
619 | WL head; |
432 | unsigned char events; |
620 | unsigned char events; /* the events watched for */ |
|
|
621 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
433 | unsigned char reify; |
623 | unsigned char unused; |
|
|
624 | #if EV_USE_EPOLL |
|
|
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
626 | #endif |
434 | #if EV_SELECT_IS_WINSOCKET |
627 | #if EV_SELECT_IS_WINSOCKET |
435 | SOCKET handle; |
628 | SOCKET handle; |
436 | #endif |
629 | #endif |
437 | } ANFD; |
630 | } ANFD; |
438 | |
631 | |
|
|
632 | /* stores the pending event set for a given watcher */ |
439 | typedef struct |
633 | typedef struct |
440 | { |
634 | { |
441 | W w; |
635 | W w; |
442 | int events; |
636 | int events; /* the pending event set for the given watcher */ |
443 | } ANPENDING; |
637 | } ANPENDING; |
444 | |
638 | |
445 | #if EV_USE_INOTIFY |
639 | #if EV_USE_INOTIFY |
446 | /* hash table entry per inotify-id */ |
640 | /* hash table entry per inotify-id */ |
447 | typedef struct |
641 | typedef struct |
… | |
… | |
450 | } ANFS; |
644 | } ANFS; |
451 | #endif |
645 | #endif |
452 | |
646 | |
453 | /* Heap Entry */ |
647 | /* Heap Entry */ |
454 | #if EV_HEAP_CACHE_AT |
648 | #if EV_HEAP_CACHE_AT |
|
|
649 | /* a heap element */ |
455 | typedef struct { |
650 | typedef struct { |
456 | ev_tstamp at; |
651 | ev_tstamp at; |
457 | WT w; |
652 | WT w; |
458 | } ANHE; |
653 | } ANHE; |
459 | |
654 | |
460 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
655 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
461 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
656 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
462 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
657 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
463 | #else |
658 | #else |
|
|
659 | /* a heap element */ |
464 | typedef WT ANHE; |
660 | typedef WT ANHE; |
465 | |
661 | |
466 | #define ANHE_w(he) (he) |
662 | #define ANHE_w(he) (he) |
467 | #define ANHE_at(he) (he)->at |
663 | #define ANHE_at(he) (he)->at |
468 | #define ANHE_at_cache(he) |
664 | #define ANHE_at_cache(he) |
… | |
… | |
492 | |
688 | |
493 | static int ev_default_loop_ptr; |
689 | static int ev_default_loop_ptr; |
494 | |
690 | |
495 | #endif |
691 | #endif |
496 | |
692 | |
|
|
693 | #if EV_FEATURE_API |
|
|
694 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
697 | #else |
|
|
698 | # define EV_RELEASE_CB (void)0 |
|
|
699 | # define EV_ACQUIRE_CB (void)0 |
|
|
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | #define EVUNLOOP_RECURSE 0x80 |
|
|
704 | |
497 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
498 | |
706 | |
|
|
707 | #ifndef EV_HAVE_EV_TIME |
499 | ev_tstamp |
708 | ev_tstamp |
500 | ev_time (void) |
709 | ev_time (void) |
501 | { |
710 | { |
502 | #if EV_USE_REALTIME |
711 | #if EV_USE_REALTIME |
|
|
712 | if (expect_true (have_realtime)) |
|
|
713 | { |
503 | struct timespec ts; |
714 | struct timespec ts; |
504 | clock_gettime (CLOCK_REALTIME, &ts); |
715 | clock_gettime (CLOCK_REALTIME, &ts); |
505 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
716 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
506 | #else |
717 | } |
|
|
718 | #endif |
|
|
719 | |
507 | struct timeval tv; |
720 | struct timeval tv; |
508 | gettimeofday (&tv, 0); |
721 | gettimeofday (&tv, 0); |
509 | return tv.tv_sec + tv.tv_usec * 1e-6; |
722 | return tv.tv_sec + tv.tv_usec * 1e-6; |
510 | #endif |
|
|
511 | } |
723 | } |
|
|
724 | #endif |
512 | |
725 | |
513 | ev_tstamp inline_size |
726 | inline_size ev_tstamp |
514 | get_clock (void) |
727 | get_clock (void) |
515 | { |
728 | { |
516 | #if EV_USE_MONOTONIC |
729 | #if EV_USE_MONOTONIC |
517 | if (expect_true (have_monotonic)) |
730 | if (expect_true (have_monotonic)) |
518 | { |
731 | { |
… | |
… | |
551 | struct timeval tv; |
764 | struct timeval tv; |
552 | |
765 | |
553 | tv.tv_sec = (time_t)delay; |
766 | tv.tv_sec = (time_t)delay; |
554 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
555 | |
768 | |
|
|
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
771 | /* by older ones */ |
556 | select (0, 0, 0, 0, &tv); |
772 | select (0, 0, 0, 0, &tv); |
557 | #endif |
773 | #endif |
558 | } |
774 | } |
559 | } |
775 | } |
560 | |
776 | |
561 | /*****************************************************************************/ |
777 | /*****************************************************************************/ |
562 | |
778 | |
563 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
779 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
564 | |
780 | |
565 | int inline_size |
781 | /* find a suitable new size for the given array, */ |
|
|
782 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
783 | inline_size int |
566 | array_nextsize (int elem, int cur, int cnt) |
784 | array_nextsize (int elem, int cur, int cnt) |
567 | { |
785 | { |
568 | int ncur = cur + 1; |
786 | int ncur = cur + 1; |
569 | |
787 | |
570 | do |
788 | do |
… | |
… | |
587 | array_realloc (int elem, void *base, int *cur, int cnt) |
805 | array_realloc (int elem, void *base, int *cur, int cnt) |
588 | { |
806 | { |
589 | *cur = array_nextsize (elem, *cur, cnt); |
807 | *cur = array_nextsize (elem, *cur, cnt); |
590 | return ev_realloc (base, elem * *cur); |
808 | return ev_realloc (base, elem * *cur); |
591 | } |
809 | } |
|
|
810 | |
|
|
811 | #define array_init_zero(base,count) \ |
|
|
812 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
592 | |
813 | |
593 | #define array_needsize(type,base,cur,cnt,init) \ |
814 | #define array_needsize(type,base,cur,cnt,init) \ |
594 | if (expect_false ((cnt) > (cur))) \ |
815 | if (expect_false ((cnt) > (cur))) \ |
595 | { \ |
816 | { \ |
596 | int ocur_ = (cur); \ |
817 | int ocur_ = (cur); \ |
… | |
… | |
608 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
829 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
609 | } |
830 | } |
610 | #endif |
831 | #endif |
611 | |
832 | |
612 | #define array_free(stem, idx) \ |
833 | #define array_free(stem, idx) \ |
613 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
834 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
614 | |
835 | |
615 | /*****************************************************************************/ |
836 | /*****************************************************************************/ |
|
|
837 | |
|
|
838 | /* dummy callback for pending events */ |
|
|
839 | static void noinline |
|
|
840 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
841 | { |
|
|
842 | } |
616 | |
843 | |
617 | void noinline |
844 | void noinline |
618 | ev_feed_event (EV_P_ void *w, int revents) |
845 | ev_feed_event (EV_P_ void *w, int revents) |
619 | { |
846 | { |
620 | W w_ = (W)w; |
847 | W w_ = (W)w; |
… | |
… | |
629 | pendings [pri][w_->pending - 1].w = w_; |
856 | pendings [pri][w_->pending - 1].w = w_; |
630 | pendings [pri][w_->pending - 1].events = revents; |
857 | pendings [pri][w_->pending - 1].events = revents; |
631 | } |
858 | } |
632 | } |
859 | } |
633 | |
860 | |
634 | void inline_speed |
861 | inline_speed void |
|
|
862 | feed_reverse (EV_P_ W w) |
|
|
863 | { |
|
|
864 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
865 | rfeeds [rfeedcnt++] = w; |
|
|
866 | } |
|
|
867 | |
|
|
868 | inline_size void |
|
|
869 | feed_reverse_done (EV_P_ int revents) |
|
|
870 | { |
|
|
871 | do |
|
|
872 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
873 | while (rfeedcnt); |
|
|
874 | } |
|
|
875 | |
|
|
876 | inline_speed void |
635 | queue_events (EV_P_ W *events, int eventcnt, int type) |
877 | queue_events (EV_P_ W *events, int eventcnt, int type) |
636 | { |
878 | { |
637 | int i; |
879 | int i; |
638 | |
880 | |
639 | for (i = 0; i < eventcnt; ++i) |
881 | for (i = 0; i < eventcnt; ++i) |
640 | ev_feed_event (EV_A_ events [i], type); |
882 | ev_feed_event (EV_A_ events [i], type); |
641 | } |
883 | } |
642 | |
884 | |
643 | /*****************************************************************************/ |
885 | /*****************************************************************************/ |
644 | |
886 | |
645 | void inline_size |
887 | inline_speed void |
646 | anfds_init (ANFD *base, int count) |
|
|
647 | { |
|
|
648 | while (count--) |
|
|
649 | { |
|
|
650 | base->head = 0; |
|
|
651 | base->events = EV_NONE; |
|
|
652 | base->reify = 0; |
|
|
653 | |
|
|
654 | ++base; |
|
|
655 | } |
|
|
656 | } |
|
|
657 | |
|
|
658 | void inline_speed |
|
|
659 | fd_event (EV_P_ int fd, int revents) |
888 | fd_event_nocheck (EV_P_ int fd, int revents) |
660 | { |
889 | { |
661 | ANFD *anfd = anfds + fd; |
890 | ANFD *anfd = anfds + fd; |
662 | ev_io *w; |
891 | ev_io *w; |
663 | |
892 | |
664 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
893 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
668 | if (ev) |
897 | if (ev) |
669 | ev_feed_event (EV_A_ (W)w, ev); |
898 | ev_feed_event (EV_A_ (W)w, ev); |
670 | } |
899 | } |
671 | } |
900 | } |
672 | |
901 | |
|
|
902 | /* do not submit kernel events for fds that have reify set */ |
|
|
903 | /* because that means they changed while we were polling for new events */ |
|
|
904 | inline_speed void |
|
|
905 | fd_event (EV_P_ int fd, int revents) |
|
|
906 | { |
|
|
907 | ANFD *anfd = anfds + fd; |
|
|
908 | |
|
|
909 | if (expect_true (!anfd->reify)) |
|
|
910 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
911 | } |
|
|
912 | |
673 | void |
913 | void |
674 | ev_feed_fd_event (EV_P_ int fd, int revents) |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
675 | { |
915 | { |
676 | if (fd >= 0 && fd < anfdmax) |
916 | if (fd >= 0 && fd < anfdmax) |
677 | fd_event (EV_A_ fd, revents); |
917 | fd_event_nocheck (EV_A_ fd, revents); |
678 | } |
918 | } |
679 | |
919 | |
680 | void inline_size |
920 | /* make sure the external fd watch events are in-sync */ |
|
|
921 | /* with the kernel/libev internal state */ |
|
|
922 | inline_size void |
681 | fd_reify (EV_P) |
923 | fd_reify (EV_P) |
682 | { |
924 | { |
683 | int i; |
925 | int i; |
684 | |
926 | |
685 | for (i = 0; i < fdchangecnt; ++i) |
927 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
694 | events |= (unsigned char)w->events; |
936 | events |= (unsigned char)w->events; |
695 | |
937 | |
696 | #if EV_SELECT_IS_WINSOCKET |
938 | #if EV_SELECT_IS_WINSOCKET |
697 | if (events) |
939 | if (events) |
698 | { |
940 | { |
699 | unsigned long argp; |
941 | unsigned long arg; |
700 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
701 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
702 | #else |
|
|
703 | anfd->handle = _get_osfhandle (fd); |
|
|
704 | #endif |
|
|
705 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
706 | } |
944 | } |
707 | #endif |
945 | #endif |
708 | |
946 | |
709 | { |
947 | { |
710 | unsigned char o_events = anfd->events; |
948 | unsigned char o_events = anfd->events; |
711 | unsigned char o_reify = anfd->reify; |
949 | unsigned char o_reify = anfd->reify; |
712 | |
950 | |
713 | anfd->reify = 0; |
951 | anfd->reify = 0; |
714 | anfd->events = events; |
952 | anfd->events = events; |
715 | |
953 | |
716 | if (o_events != events || o_reify & EV_IOFDSET) |
954 | if (o_events != events || o_reify & EV__IOFDSET) |
717 | backend_modify (EV_A_ fd, o_events, events); |
955 | backend_modify (EV_A_ fd, o_events, events); |
718 | } |
956 | } |
719 | } |
957 | } |
720 | |
958 | |
721 | fdchangecnt = 0; |
959 | fdchangecnt = 0; |
722 | } |
960 | } |
723 | |
961 | |
724 | void inline_size |
962 | /* something about the given fd changed */ |
|
|
963 | inline_size void |
725 | fd_change (EV_P_ int fd, int flags) |
964 | fd_change (EV_P_ int fd, int flags) |
726 | { |
965 | { |
727 | unsigned char reify = anfds [fd].reify; |
966 | unsigned char reify = anfds [fd].reify; |
728 | anfds [fd].reify |= flags; |
967 | anfds [fd].reify |= flags; |
729 | |
968 | |
… | |
… | |
733 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
972 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
734 | fdchanges [fdchangecnt - 1] = fd; |
973 | fdchanges [fdchangecnt - 1] = fd; |
735 | } |
974 | } |
736 | } |
975 | } |
737 | |
976 | |
738 | void inline_speed |
977 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
978 | inline_speed void |
739 | fd_kill (EV_P_ int fd) |
979 | fd_kill (EV_P_ int fd) |
740 | { |
980 | { |
741 | ev_io *w; |
981 | ev_io *w; |
742 | |
982 | |
743 | while ((w = (ev_io *)anfds [fd].head)) |
983 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
745 | ev_io_stop (EV_A_ w); |
985 | ev_io_stop (EV_A_ w); |
746 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
747 | } |
987 | } |
748 | } |
988 | } |
749 | |
989 | |
750 | int inline_size |
990 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
991 | inline_size int |
751 | fd_valid (int fd) |
992 | fd_valid (int fd) |
752 | { |
993 | { |
753 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
754 | return _get_osfhandle (fd) != -1; |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
755 | #else |
996 | #else |
756 | return fcntl (fd, F_GETFD) != -1; |
997 | return fcntl (fd, F_GETFD) != -1; |
757 | #endif |
998 | #endif |
758 | } |
999 | } |
759 | |
1000 | |
… | |
… | |
763 | { |
1004 | { |
764 | int fd; |
1005 | int fd; |
765 | |
1006 | |
766 | for (fd = 0; fd < anfdmax; ++fd) |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
767 | if (anfds [fd].events) |
1008 | if (anfds [fd].events) |
768 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1009 | if (!fd_valid (fd) && errno == EBADF) |
769 | fd_kill (EV_A_ fd); |
1010 | fd_kill (EV_A_ fd); |
770 | } |
1011 | } |
771 | |
1012 | |
772 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1013 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
773 | static void noinline |
1014 | static void noinline |
… | |
… | |
777 | |
1018 | |
778 | for (fd = anfdmax; fd--; ) |
1019 | for (fd = anfdmax; fd--; ) |
779 | if (anfds [fd].events) |
1020 | if (anfds [fd].events) |
780 | { |
1021 | { |
781 | fd_kill (EV_A_ fd); |
1022 | fd_kill (EV_A_ fd); |
782 | return; |
1023 | break; |
783 | } |
1024 | } |
784 | } |
1025 | } |
785 | |
1026 | |
786 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1027 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
787 | static void noinline |
1028 | static void noinline |
… | |
… | |
791 | |
1032 | |
792 | for (fd = 0; fd < anfdmax; ++fd) |
1033 | for (fd = 0; fd < anfdmax; ++fd) |
793 | if (anfds [fd].events) |
1034 | if (anfds [fd].events) |
794 | { |
1035 | { |
795 | anfds [fd].events = 0; |
1036 | anfds [fd].events = 0; |
|
|
1037 | anfds [fd].emask = 0; |
796 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1038 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
797 | } |
1039 | } |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | /* used to prepare libev internal fd's */ |
|
|
1043 | /* this is not fork-safe */ |
|
|
1044 | inline_speed void |
|
|
1045 | fd_intern (int fd) |
|
|
1046 | { |
|
|
1047 | #ifdef _WIN32 |
|
|
1048 | unsigned long arg = 1; |
|
|
1049 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1050 | #else |
|
|
1051 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1052 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1053 | #endif |
798 | } |
1054 | } |
799 | |
1055 | |
800 | /*****************************************************************************/ |
1056 | /*****************************************************************************/ |
801 | |
1057 | |
802 | /* |
1058 | /* |
… | |
… | |
817 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1073 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
818 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1074 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
819 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1075 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
820 | |
1076 | |
821 | /* away from the root */ |
1077 | /* away from the root */ |
822 | void inline_speed |
1078 | inline_speed void |
823 | downheap (ANHE *heap, int N, int k) |
1079 | downheap (ANHE *heap, int N, int k) |
824 | { |
1080 | { |
825 | ANHE he = heap [k]; |
1081 | ANHE he = heap [k]; |
826 | ANHE *E = heap + N + HEAP0; |
1082 | ANHE *E = heap + N + HEAP0; |
827 | |
1083 | |
… | |
… | |
867 | #define HEAP0 1 |
1123 | #define HEAP0 1 |
868 | #define HPARENT(k) ((k) >> 1) |
1124 | #define HPARENT(k) ((k) >> 1) |
869 | #define UPHEAP_DONE(p,k) (!(p)) |
1125 | #define UPHEAP_DONE(p,k) (!(p)) |
870 | |
1126 | |
871 | /* away from the root */ |
1127 | /* away from the root */ |
872 | void inline_speed |
1128 | inline_speed void |
873 | downheap (ANHE *heap, int N, int k) |
1129 | downheap (ANHE *heap, int N, int k) |
874 | { |
1130 | { |
875 | ANHE he = heap [k]; |
1131 | ANHE he = heap [k]; |
876 | |
1132 | |
877 | for (;;) |
1133 | for (;;) |
878 | { |
1134 | { |
879 | int c = k << 1; |
1135 | int c = k << 1; |
880 | |
1136 | |
881 | if (c > N + HEAP0 - 1) |
1137 | if (c >= N + HEAP0) |
882 | break; |
1138 | break; |
883 | |
1139 | |
884 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1140 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
885 | ? 1 : 0; |
1141 | ? 1 : 0; |
886 | |
1142 | |
… | |
… | |
897 | ev_active (ANHE_w (he)) = k; |
1153 | ev_active (ANHE_w (he)) = k; |
898 | } |
1154 | } |
899 | #endif |
1155 | #endif |
900 | |
1156 | |
901 | /* towards the root */ |
1157 | /* towards the root */ |
902 | void inline_speed |
1158 | inline_speed void |
903 | upheap (ANHE *heap, int k) |
1159 | upheap (ANHE *heap, int k) |
904 | { |
1160 | { |
905 | ANHE he = heap [k]; |
1161 | ANHE he = heap [k]; |
906 | |
1162 | |
907 | for (;;) |
1163 | for (;;) |
… | |
… | |
918 | |
1174 | |
919 | heap [k] = he; |
1175 | heap [k] = he; |
920 | ev_active (ANHE_w (he)) = k; |
1176 | ev_active (ANHE_w (he)) = k; |
921 | } |
1177 | } |
922 | |
1178 | |
923 | void inline_size |
1179 | /* move an element suitably so it is in a correct place */ |
|
|
1180 | inline_size void |
924 | adjustheap (ANHE *heap, int N, int k) |
1181 | adjustheap (ANHE *heap, int N, int k) |
925 | { |
1182 | { |
926 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1183 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
927 | upheap (heap, k); |
1184 | upheap (heap, k); |
928 | else |
1185 | else |
929 | downheap (heap, N, k); |
1186 | downheap (heap, N, k); |
930 | } |
1187 | } |
931 | |
1188 | |
932 | /* rebuild the heap: this function is used only once and executed rarely */ |
1189 | /* rebuild the heap: this function is used only once and executed rarely */ |
933 | void inline_size |
1190 | inline_size void |
934 | reheap (ANHE *heap, int N) |
1191 | reheap (ANHE *heap, int N) |
935 | { |
1192 | { |
936 | int i; |
1193 | int i; |
|
|
1194 | |
937 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1195 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
938 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
1196 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
939 | for (i = 0; i < N; ++i) |
1197 | for (i = 0; i < N; ++i) |
940 | upheap (heap, i + HEAP0); |
1198 | upheap (heap, i + HEAP0); |
941 | } |
1199 | } |
942 | |
1200 | |
943 | #if EV_VERIFY |
|
|
944 | static void |
|
|
945 | checkheap (ANHE *heap, int N) |
|
|
946 | { |
|
|
947 | int i; |
|
|
948 | |
|
|
949 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
950 | { |
|
|
951 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
952 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
953 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
954 | } |
|
|
955 | } |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | /*****************************************************************************/ |
1201 | /*****************************************************************************/ |
959 | |
1202 | |
|
|
1203 | /* associate signal watchers to a signal signal */ |
960 | typedef struct |
1204 | typedef struct |
961 | { |
1205 | { |
|
|
1206 | EV_ATOMIC_T pending; |
|
|
1207 | #if EV_MULTIPLICITY |
|
|
1208 | EV_P; |
|
|
1209 | #endif |
962 | WL head; |
1210 | WL head; |
963 | EV_ATOMIC_T gotsig; |
|
|
964 | } ANSIG; |
1211 | } ANSIG; |
965 | |
1212 | |
966 | static ANSIG *signals; |
1213 | static ANSIG signals [EV_NSIG - 1]; |
967 | static int signalmax; |
|
|
968 | |
|
|
969 | static EV_ATOMIC_T gotsig; |
|
|
970 | |
|
|
971 | void inline_size |
|
|
972 | signals_init (ANSIG *base, int count) |
|
|
973 | { |
|
|
974 | while (count--) |
|
|
975 | { |
|
|
976 | base->head = 0; |
|
|
977 | base->gotsig = 0; |
|
|
978 | |
|
|
979 | ++base; |
|
|
980 | } |
|
|
981 | } |
|
|
982 | |
1214 | |
983 | /*****************************************************************************/ |
1215 | /*****************************************************************************/ |
984 | |
1216 | |
985 | void inline_speed |
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
986 | fd_intern (int fd) |
|
|
987 | { |
|
|
988 | #ifdef _WIN32 |
|
|
989 | int arg = 1; |
|
|
990 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
991 | #else |
|
|
992 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
993 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
994 | #endif |
|
|
995 | } |
|
|
996 | |
1218 | |
997 | static void noinline |
1219 | static void noinline |
998 | evpipe_init (EV_P) |
1220 | evpipe_init (EV_P) |
999 | { |
1221 | { |
1000 | if (!ev_is_active (&pipeev)) |
1222 | if (!ev_is_active (&pipe_w)) |
1001 | { |
1223 | { |
1002 | #if EV_USE_EVENTFD |
1224 | # if EV_USE_EVENTFD |
|
|
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1226 | if (evfd < 0 && errno == EINVAL) |
1003 | if ((evfd = eventfd (0, 0)) >= 0) |
1227 | evfd = eventfd (0, 0); |
|
|
1228 | |
|
|
1229 | if (evfd >= 0) |
1004 | { |
1230 | { |
1005 | evpipe [0] = -1; |
1231 | evpipe [0] = -1; |
1006 | fd_intern (evfd); |
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1007 | ev_io_set (&pipeev, evfd, EV_READ); |
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
1008 | } |
1234 | } |
1009 | else |
1235 | else |
1010 | #endif |
1236 | # endif |
1011 | { |
1237 | { |
1012 | while (pipe (evpipe)) |
1238 | while (pipe (evpipe)) |
1013 | syserr ("(libev) error creating signal/async pipe"); |
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
1014 | |
1240 | |
1015 | fd_intern (evpipe [0]); |
1241 | fd_intern (evpipe [0]); |
1016 | fd_intern (evpipe [1]); |
1242 | fd_intern (evpipe [1]); |
1017 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1243 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1018 | } |
1244 | } |
1019 | |
1245 | |
1020 | ev_io_start (EV_A_ &pipeev); |
1246 | ev_io_start (EV_A_ &pipe_w); |
1021 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1247 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1022 | } |
1248 | } |
1023 | } |
1249 | } |
1024 | |
1250 | |
1025 | void inline_size |
1251 | inline_size void |
1026 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1027 | { |
1253 | { |
1028 | if (!*flag) |
1254 | if (!*flag) |
1029 | { |
1255 | { |
1030 | int old_errno = errno; /* save errno because write might clobber it */ |
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
1031 | |
1258 | |
1032 | *flag = 1; |
1259 | *flag = 1; |
1033 | |
1260 | |
1034 | #if EV_USE_EVENTFD |
1261 | #if EV_USE_EVENTFD |
1035 | if (evfd >= 0) |
1262 | if (evfd >= 0) |
… | |
… | |
1037 | uint64_t counter = 1; |
1264 | uint64_t counter = 1; |
1038 | write (evfd, &counter, sizeof (uint64_t)); |
1265 | write (evfd, &counter, sizeof (uint64_t)); |
1039 | } |
1266 | } |
1040 | else |
1267 | else |
1041 | #endif |
1268 | #endif |
1042 | write (evpipe [1], &old_errno, 1); |
1269 | write (evpipe [1], &dummy, 1); |
1043 | |
1270 | |
1044 | errno = old_errno; |
1271 | errno = old_errno; |
1045 | } |
1272 | } |
1046 | } |
1273 | } |
1047 | |
1274 | |
|
|
1275 | /* called whenever the libev signal pipe */ |
|
|
1276 | /* got some events (signal, async) */ |
1048 | static void |
1277 | static void |
1049 | pipecb (EV_P_ ev_io *iow, int revents) |
1278 | pipecb (EV_P_ ev_io *iow, int revents) |
1050 | { |
1279 | { |
|
|
1280 | int i; |
|
|
1281 | |
1051 | #if EV_USE_EVENTFD |
1282 | #if EV_USE_EVENTFD |
1052 | if (evfd >= 0) |
1283 | if (evfd >= 0) |
1053 | { |
1284 | { |
1054 | uint64_t counter; |
1285 | uint64_t counter; |
1055 | read (evfd, &counter, sizeof (uint64_t)); |
1286 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1059 | { |
1290 | { |
1060 | char dummy; |
1291 | char dummy; |
1061 | read (evpipe [0], &dummy, 1); |
1292 | read (evpipe [0], &dummy, 1); |
1062 | } |
1293 | } |
1063 | |
1294 | |
1064 | if (gotsig && ev_is_default_loop (EV_A)) |
1295 | if (sig_pending) |
1065 | { |
1296 | { |
1066 | int signum; |
1297 | sig_pending = 0; |
1067 | gotsig = 0; |
|
|
1068 | |
1298 | |
1069 | for (signum = signalmax; signum--; ) |
1299 | for (i = EV_NSIG - 1; i--; ) |
1070 | if (signals [signum].gotsig) |
1300 | if (expect_false (signals [i].pending)) |
1071 | ev_feed_signal_event (EV_A_ signum + 1); |
1301 | ev_feed_signal_event (EV_A_ i + 1); |
1072 | } |
1302 | } |
1073 | |
1303 | |
1074 | #if EV_ASYNC_ENABLE |
1304 | #if EV_ASYNC_ENABLE |
1075 | if (gotasync) |
1305 | if (async_pending) |
1076 | { |
1306 | { |
1077 | int i; |
1307 | async_pending = 0; |
1078 | gotasync = 0; |
|
|
1079 | |
1308 | |
1080 | for (i = asynccnt; i--; ) |
1309 | for (i = asynccnt; i--; ) |
1081 | if (asyncs [i]->sent) |
1310 | if (asyncs [i]->sent) |
1082 | { |
1311 | { |
1083 | asyncs [i]->sent = 0; |
1312 | asyncs [i]->sent = 0; |
… | |
… | |
1091 | |
1320 | |
1092 | static void |
1321 | static void |
1093 | ev_sighandler (int signum) |
1322 | ev_sighandler (int signum) |
1094 | { |
1323 | { |
1095 | #if EV_MULTIPLICITY |
1324 | #if EV_MULTIPLICITY |
1096 | struct ev_loop *loop = &default_loop_struct; |
1325 | EV_P = signals [signum - 1].loop; |
1097 | #endif |
1326 | #endif |
1098 | |
1327 | |
1099 | #if _WIN32 |
1328 | #ifdef _WIN32 |
1100 | signal (signum, ev_sighandler); |
1329 | signal (signum, ev_sighandler); |
1101 | #endif |
1330 | #endif |
1102 | |
1331 | |
1103 | signals [signum - 1].gotsig = 1; |
1332 | signals [signum - 1].pending = 1; |
1104 | evpipe_write (EV_A_ &gotsig); |
1333 | evpipe_write (EV_A_ &sig_pending); |
1105 | } |
1334 | } |
1106 | |
1335 | |
1107 | void noinline |
1336 | void noinline |
1108 | ev_feed_signal_event (EV_P_ int signum) |
1337 | ev_feed_signal_event (EV_P_ int signum) |
1109 | { |
1338 | { |
1110 | WL w; |
1339 | WL w; |
1111 | |
1340 | |
|
|
1341 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1342 | return; |
|
|
1343 | |
|
|
1344 | --signum; |
|
|
1345 | |
1112 | #if EV_MULTIPLICITY |
1346 | #if EV_MULTIPLICITY |
1113 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1347 | /* it is permissible to try to feed a signal to the wrong loop */ |
1114 | #endif |
1348 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1115 | |
1349 | |
1116 | --signum; |
1350 | if (expect_false (signals [signum].loop != EV_A)) |
1117 | |
|
|
1118 | if (signum < 0 || signum >= signalmax) |
|
|
1119 | return; |
1351 | return; |
|
|
1352 | #endif |
1120 | |
1353 | |
1121 | signals [signum].gotsig = 0; |
1354 | signals [signum].pending = 0; |
1122 | |
1355 | |
1123 | for (w = signals [signum].head; w; w = w->next) |
1356 | for (w = signals [signum].head; w; w = w->next) |
1124 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1357 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1125 | } |
1358 | } |
1126 | |
1359 | |
|
|
1360 | #if EV_USE_SIGNALFD |
|
|
1361 | static void |
|
|
1362 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1363 | { |
|
|
1364 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1365 | |
|
|
1366 | for (;;) |
|
|
1367 | { |
|
|
1368 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1369 | |
|
|
1370 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1371 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1372 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1373 | |
|
|
1374 | if (res < (ssize_t)sizeof (si)) |
|
|
1375 | break; |
|
|
1376 | } |
|
|
1377 | } |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | #endif |
|
|
1381 | |
1127 | /*****************************************************************************/ |
1382 | /*****************************************************************************/ |
1128 | |
1383 | |
|
|
1384 | #if EV_CHILD_ENABLE |
1129 | static WL childs [EV_PID_HASHSIZE]; |
1385 | static WL childs [EV_PID_HASHSIZE]; |
1130 | |
|
|
1131 | #ifndef _WIN32 |
|
|
1132 | |
1386 | |
1133 | static ev_signal childev; |
1387 | static ev_signal childev; |
1134 | |
1388 | |
1135 | #ifndef WIFCONTINUED |
1389 | #ifndef WIFCONTINUED |
1136 | # define WIFCONTINUED(status) 0 |
1390 | # define WIFCONTINUED(status) 0 |
1137 | #endif |
1391 | #endif |
1138 | |
1392 | |
1139 | void inline_speed |
1393 | /* handle a single child status event */ |
|
|
1394 | inline_speed void |
1140 | child_reap (EV_P_ int chain, int pid, int status) |
1395 | child_reap (EV_P_ int chain, int pid, int status) |
1141 | { |
1396 | { |
1142 | ev_child *w; |
1397 | ev_child *w; |
1143 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1398 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1144 | |
1399 | |
1145 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1400 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1146 | { |
1401 | { |
1147 | if ((w->pid == pid || !w->pid) |
1402 | if ((w->pid == pid || !w->pid) |
1148 | && (!traced || (w->flags & 1))) |
1403 | && (!traced || (w->flags & 1))) |
1149 | { |
1404 | { |
1150 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1405 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1157 | |
1412 | |
1158 | #ifndef WCONTINUED |
1413 | #ifndef WCONTINUED |
1159 | # define WCONTINUED 0 |
1414 | # define WCONTINUED 0 |
1160 | #endif |
1415 | #endif |
1161 | |
1416 | |
|
|
1417 | /* called on sigchld etc., calls waitpid */ |
1162 | static void |
1418 | static void |
1163 | childcb (EV_P_ ev_signal *sw, int revents) |
1419 | childcb (EV_P_ ev_signal *sw, int revents) |
1164 | { |
1420 | { |
1165 | int pid, status; |
1421 | int pid, status; |
1166 | |
1422 | |
… | |
… | |
1174 | /* make sure we are called again until all children have been reaped */ |
1430 | /* make sure we are called again until all children have been reaped */ |
1175 | /* we need to do it this way so that the callback gets called before we continue */ |
1431 | /* we need to do it this way so that the callback gets called before we continue */ |
1176 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1432 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1177 | |
1433 | |
1178 | child_reap (EV_A_ pid, pid, status); |
1434 | child_reap (EV_A_ pid, pid, status); |
1179 | if (EV_PID_HASHSIZE > 1) |
1435 | if ((EV_PID_HASHSIZE) > 1) |
1180 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1436 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1181 | } |
1437 | } |
1182 | |
1438 | |
1183 | #endif |
1439 | #endif |
1184 | |
1440 | |
… | |
… | |
1247 | /* kqueue is borked on everything but netbsd apparently */ |
1503 | /* kqueue is borked on everything but netbsd apparently */ |
1248 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1504 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1249 | flags &= ~EVBACKEND_KQUEUE; |
1505 | flags &= ~EVBACKEND_KQUEUE; |
1250 | #endif |
1506 | #endif |
1251 | #ifdef __APPLE__ |
1507 | #ifdef __APPLE__ |
1252 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1508 | /* only select works correctly on that "unix-certified" platform */ |
1253 | flags &= ~EVBACKEND_POLL; |
1509 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1510 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1511 | #endif |
|
|
1512 | #ifdef __FreeBSD__ |
|
|
1513 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1254 | #endif |
1514 | #endif |
1255 | |
1515 | |
1256 | return flags; |
1516 | return flags; |
1257 | } |
1517 | } |
1258 | |
1518 | |
… | |
… | |
1272 | ev_backend (EV_P) |
1532 | ev_backend (EV_P) |
1273 | { |
1533 | { |
1274 | return backend; |
1534 | return backend; |
1275 | } |
1535 | } |
1276 | |
1536 | |
|
|
1537 | #if EV_FEATURE_API |
1277 | unsigned int |
1538 | unsigned int |
1278 | ev_loop_count (EV_P) |
1539 | ev_iteration (EV_P) |
1279 | { |
1540 | { |
1280 | return loop_count; |
1541 | return loop_count; |
1281 | } |
1542 | } |
1282 | |
1543 | |
|
|
1544 | unsigned int |
|
|
1545 | ev_depth (EV_P) |
|
|
1546 | { |
|
|
1547 | return loop_depth; |
|
|
1548 | } |
|
|
1549 | |
1283 | void |
1550 | void |
1284 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1551 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1285 | { |
1552 | { |
1286 | io_blocktime = interval; |
1553 | io_blocktime = interval; |
1287 | } |
1554 | } |
… | |
… | |
1290 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1557 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1291 | { |
1558 | { |
1292 | timeout_blocktime = interval; |
1559 | timeout_blocktime = interval; |
1293 | } |
1560 | } |
1294 | |
1561 | |
|
|
1562 | void |
|
|
1563 | ev_set_userdata (EV_P_ void *data) |
|
|
1564 | { |
|
|
1565 | userdata = data; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | void * |
|
|
1569 | ev_userdata (EV_P) |
|
|
1570 | { |
|
|
1571 | return userdata; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1575 | { |
|
|
1576 | invoke_cb = invoke_pending_cb; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1580 | { |
|
|
1581 | release_cb = release; |
|
|
1582 | acquire_cb = acquire; |
|
|
1583 | } |
|
|
1584 | #endif |
|
|
1585 | |
|
|
1586 | /* initialise a loop structure, must be zero-initialised */ |
1295 | static void noinline |
1587 | static void noinline |
1296 | loop_init (EV_P_ unsigned int flags) |
1588 | loop_init (EV_P_ unsigned int flags) |
1297 | { |
1589 | { |
1298 | if (!backend) |
1590 | if (!backend) |
1299 | { |
1591 | { |
|
|
1592 | #if EV_USE_REALTIME |
|
|
1593 | if (!have_realtime) |
|
|
1594 | { |
|
|
1595 | struct timespec ts; |
|
|
1596 | |
|
|
1597 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1598 | have_realtime = 1; |
|
|
1599 | } |
|
|
1600 | #endif |
|
|
1601 | |
1300 | #if EV_USE_MONOTONIC |
1602 | #if EV_USE_MONOTONIC |
|
|
1603 | if (!have_monotonic) |
1301 | { |
1604 | { |
1302 | struct timespec ts; |
1605 | struct timespec ts; |
|
|
1606 | |
1303 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1607 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1304 | have_monotonic = 1; |
1608 | have_monotonic = 1; |
1305 | } |
1609 | } |
1306 | #endif |
1610 | #endif |
|
|
1611 | |
|
|
1612 | /* pid check not overridable via env */ |
|
|
1613 | #ifndef _WIN32 |
|
|
1614 | if (flags & EVFLAG_FORKCHECK) |
|
|
1615 | curpid = getpid (); |
|
|
1616 | #endif |
|
|
1617 | |
|
|
1618 | if (!(flags & EVFLAG_NOENV) |
|
|
1619 | && !enable_secure () |
|
|
1620 | && getenv ("LIBEV_FLAGS")) |
|
|
1621 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1307 | |
1622 | |
1308 | ev_rt_now = ev_time (); |
1623 | ev_rt_now = ev_time (); |
1309 | mn_now = get_clock (); |
1624 | mn_now = get_clock (); |
1310 | now_floor = mn_now; |
1625 | now_floor = mn_now; |
1311 | rtmn_diff = ev_rt_now - mn_now; |
1626 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1627 | #if EV_FEATURE_API |
|
|
1628 | invoke_cb = ev_invoke_pending; |
|
|
1629 | #endif |
1312 | |
1630 | |
1313 | io_blocktime = 0.; |
1631 | io_blocktime = 0.; |
1314 | timeout_blocktime = 0.; |
1632 | timeout_blocktime = 0.; |
1315 | backend = 0; |
1633 | backend = 0; |
1316 | backend_fd = -1; |
1634 | backend_fd = -1; |
1317 | gotasync = 0; |
1635 | sig_pending = 0; |
|
|
1636 | #if EV_ASYNC_ENABLE |
|
|
1637 | async_pending = 0; |
|
|
1638 | #endif |
1318 | #if EV_USE_INOTIFY |
1639 | #if EV_USE_INOTIFY |
1319 | fs_fd = -2; |
1640 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1320 | #endif |
1641 | #endif |
1321 | |
1642 | #if EV_USE_SIGNALFD |
1322 | /* pid check not overridable via env */ |
1643 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1323 | #ifndef _WIN32 |
|
|
1324 | if (flags & EVFLAG_FORKCHECK) |
|
|
1325 | curpid = getpid (); |
|
|
1326 | #endif |
1644 | #endif |
1327 | |
|
|
1328 | if (!(flags & EVFLAG_NOENV) |
|
|
1329 | && !enable_secure () |
|
|
1330 | && getenv ("LIBEV_FLAGS")) |
|
|
1331 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1332 | |
1645 | |
1333 | if (!(flags & 0x0000ffffU)) |
1646 | if (!(flags & 0x0000ffffU)) |
1334 | flags |= ev_recommended_backends (); |
1647 | flags |= ev_recommended_backends (); |
1335 | |
1648 | |
1336 | #if EV_USE_PORT |
1649 | #if EV_USE_PORT |
… | |
… | |
1347 | #endif |
1660 | #endif |
1348 | #if EV_USE_SELECT |
1661 | #if EV_USE_SELECT |
1349 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1662 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1350 | #endif |
1663 | #endif |
1351 | |
1664 | |
|
|
1665 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1666 | |
|
|
1667 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1352 | ev_init (&pipeev, pipecb); |
1668 | ev_init (&pipe_w, pipecb); |
1353 | ev_set_priority (&pipeev, EV_MAXPRI); |
1669 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1670 | #endif |
1354 | } |
1671 | } |
1355 | } |
1672 | } |
1356 | |
1673 | |
|
|
1674 | /* free up a loop structure */ |
1357 | static void noinline |
1675 | static void noinline |
1358 | loop_destroy (EV_P) |
1676 | loop_destroy (EV_P) |
1359 | { |
1677 | { |
1360 | int i; |
1678 | int i; |
1361 | |
1679 | |
1362 | if (ev_is_active (&pipeev)) |
1680 | if (ev_is_active (&pipe_w)) |
1363 | { |
1681 | { |
1364 | ev_ref (EV_A); /* signal watcher */ |
1682 | /*ev_ref (EV_A);*/ |
1365 | ev_io_stop (EV_A_ &pipeev); |
1683 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1366 | |
1684 | |
1367 | #if EV_USE_EVENTFD |
1685 | #if EV_USE_EVENTFD |
1368 | if (evfd >= 0) |
1686 | if (evfd >= 0) |
1369 | close (evfd); |
1687 | close (evfd); |
1370 | #endif |
1688 | #endif |
1371 | |
1689 | |
1372 | if (evpipe [0] >= 0) |
1690 | if (evpipe [0] >= 0) |
1373 | { |
1691 | { |
1374 | close (evpipe [0]); |
1692 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1375 | close (evpipe [1]); |
1693 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1376 | } |
1694 | } |
1377 | } |
1695 | } |
|
|
1696 | |
|
|
1697 | #if EV_USE_SIGNALFD |
|
|
1698 | if (ev_is_active (&sigfd_w)) |
|
|
1699 | close (sigfd); |
|
|
1700 | #endif |
1378 | |
1701 | |
1379 | #if EV_USE_INOTIFY |
1702 | #if EV_USE_INOTIFY |
1380 | if (fs_fd >= 0) |
1703 | if (fs_fd >= 0) |
1381 | close (fs_fd); |
1704 | close (fs_fd); |
1382 | #endif |
1705 | #endif |
… | |
… | |
1406 | #if EV_IDLE_ENABLE |
1729 | #if EV_IDLE_ENABLE |
1407 | array_free (idle, [i]); |
1730 | array_free (idle, [i]); |
1408 | #endif |
1731 | #endif |
1409 | } |
1732 | } |
1410 | |
1733 | |
1411 | ev_free (anfds); anfdmax = 0; |
1734 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1412 | |
1735 | |
1413 | /* have to use the microsoft-never-gets-it-right macro */ |
1736 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1737 | array_free (rfeed, EMPTY); |
1414 | array_free (fdchange, EMPTY); |
1738 | array_free (fdchange, EMPTY); |
1415 | array_free (timer, EMPTY); |
1739 | array_free (timer, EMPTY); |
1416 | #if EV_PERIODIC_ENABLE |
1740 | #if EV_PERIODIC_ENABLE |
1417 | array_free (periodic, EMPTY); |
1741 | array_free (periodic, EMPTY); |
1418 | #endif |
1742 | #endif |
… | |
… | |
1427 | |
1751 | |
1428 | backend = 0; |
1752 | backend = 0; |
1429 | } |
1753 | } |
1430 | |
1754 | |
1431 | #if EV_USE_INOTIFY |
1755 | #if EV_USE_INOTIFY |
1432 | void inline_size infy_fork (EV_P); |
1756 | inline_size void infy_fork (EV_P); |
1433 | #endif |
1757 | #endif |
1434 | |
1758 | |
1435 | void inline_size |
1759 | inline_size void |
1436 | loop_fork (EV_P) |
1760 | loop_fork (EV_P) |
1437 | { |
1761 | { |
1438 | #if EV_USE_PORT |
1762 | #if EV_USE_PORT |
1439 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1763 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1440 | #endif |
1764 | #endif |
… | |
… | |
1446 | #endif |
1770 | #endif |
1447 | #if EV_USE_INOTIFY |
1771 | #if EV_USE_INOTIFY |
1448 | infy_fork (EV_A); |
1772 | infy_fork (EV_A); |
1449 | #endif |
1773 | #endif |
1450 | |
1774 | |
1451 | if (ev_is_active (&pipeev)) |
1775 | if (ev_is_active (&pipe_w)) |
1452 | { |
1776 | { |
1453 | /* this "locks" the handlers against writing to the pipe */ |
1777 | /* this "locks" the handlers against writing to the pipe */ |
1454 | /* while we modify the fd vars */ |
1778 | /* while we modify the fd vars */ |
1455 | gotsig = 1; |
1779 | sig_pending = 1; |
1456 | #if EV_ASYNC_ENABLE |
1780 | #if EV_ASYNC_ENABLE |
1457 | gotasync = 1; |
1781 | async_pending = 1; |
1458 | #endif |
1782 | #endif |
1459 | |
1783 | |
1460 | ev_ref (EV_A); |
1784 | ev_ref (EV_A); |
1461 | ev_io_stop (EV_A_ &pipeev); |
1785 | ev_io_stop (EV_A_ &pipe_w); |
1462 | |
1786 | |
1463 | #if EV_USE_EVENTFD |
1787 | #if EV_USE_EVENTFD |
1464 | if (evfd >= 0) |
1788 | if (evfd >= 0) |
1465 | close (evfd); |
1789 | close (evfd); |
1466 | #endif |
1790 | #endif |
1467 | |
1791 | |
1468 | if (evpipe [0] >= 0) |
1792 | if (evpipe [0] >= 0) |
1469 | { |
1793 | { |
1470 | close (evpipe [0]); |
1794 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1471 | close (evpipe [1]); |
1795 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1472 | } |
1796 | } |
1473 | |
1797 | |
|
|
1798 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1474 | evpipe_init (EV_A); |
1799 | evpipe_init (EV_A); |
1475 | /* now iterate over everything, in case we missed something */ |
1800 | /* now iterate over everything, in case we missed something */ |
1476 | pipecb (EV_A_ &pipeev, EV_READ); |
1801 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1802 | #endif |
1477 | } |
1803 | } |
1478 | |
1804 | |
1479 | postfork = 0; |
1805 | postfork = 0; |
1480 | } |
1806 | } |
1481 | |
1807 | |
1482 | #if EV_MULTIPLICITY |
1808 | #if EV_MULTIPLICITY |
|
|
1809 | |
1483 | struct ev_loop * |
1810 | struct ev_loop * |
1484 | ev_loop_new (unsigned int flags) |
1811 | ev_loop_new (unsigned int flags) |
1485 | { |
1812 | { |
1486 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1813 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1487 | |
1814 | |
1488 | memset (loop, 0, sizeof (struct ev_loop)); |
1815 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1489 | |
|
|
1490 | loop_init (EV_A_ flags); |
1816 | loop_init (EV_A_ flags); |
1491 | |
1817 | |
1492 | if (ev_backend (EV_A)) |
1818 | if (ev_backend (EV_A)) |
1493 | return loop; |
1819 | return EV_A; |
1494 | |
1820 | |
1495 | return 0; |
1821 | return 0; |
1496 | } |
1822 | } |
1497 | |
1823 | |
1498 | void |
1824 | void |
… | |
… | |
1505 | void |
1831 | void |
1506 | ev_loop_fork (EV_P) |
1832 | ev_loop_fork (EV_P) |
1507 | { |
1833 | { |
1508 | postfork = 1; /* must be in line with ev_default_fork */ |
1834 | postfork = 1; /* must be in line with ev_default_fork */ |
1509 | } |
1835 | } |
|
|
1836 | #endif /* multiplicity */ |
1510 | |
1837 | |
1511 | #if EV_VERIFY |
1838 | #if EV_VERIFY |
1512 | static void |
1839 | static void noinline |
|
|
1840 | verify_watcher (EV_P_ W w) |
|
|
1841 | { |
|
|
1842 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1843 | |
|
|
1844 | if (w->pending) |
|
|
1845 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | static void noinline |
|
|
1849 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1850 | { |
|
|
1851 | int i; |
|
|
1852 | |
|
|
1853 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1854 | { |
|
|
1855 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1856 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1857 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1858 | |
|
|
1859 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1860 | } |
|
|
1861 | } |
|
|
1862 | |
|
|
1863 | static void noinline |
1513 | array_check (W **ws, int cnt) |
1864 | array_verify (EV_P_ W *ws, int cnt) |
1514 | { |
1865 | { |
1515 | while (cnt--) |
1866 | while (cnt--) |
|
|
1867 | { |
1516 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1868 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1869 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1870 | } |
1517 | } |
1871 | } |
|
|
1872 | #endif |
1518 | |
1873 | |
1519 | static void |
1874 | #if EV_FEATURE_API |
|
|
1875 | void |
1520 | ev_loop_verify (EV_P) |
1876 | ev_verify (EV_P) |
1521 | { |
1877 | { |
|
|
1878 | #if EV_VERIFY |
1522 | int i; |
1879 | int i; |
|
|
1880 | WL w; |
1523 | |
1881 | |
|
|
1882 | assert (activecnt >= -1); |
|
|
1883 | |
|
|
1884 | assert (fdchangemax >= fdchangecnt); |
|
|
1885 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1886 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1887 | |
|
|
1888 | assert (anfdmax >= 0); |
|
|
1889 | for (i = 0; i < anfdmax; ++i) |
|
|
1890 | for (w = anfds [i].head; w; w = w->next) |
|
|
1891 | { |
|
|
1892 | verify_watcher (EV_A_ (W)w); |
|
|
1893 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1894 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1895 | } |
|
|
1896 | |
|
|
1897 | assert (timermax >= timercnt); |
1524 | checkheap (timers, timercnt); |
1898 | verify_heap (EV_A_ timers, timercnt); |
|
|
1899 | |
1525 | #if EV_PERIODIC_ENABLE |
1900 | #if EV_PERIODIC_ENABLE |
|
|
1901 | assert (periodicmax >= periodiccnt); |
1526 | checkheap (periodics, periodiccnt); |
1902 | verify_heap (EV_A_ periodics, periodiccnt); |
1527 | #endif |
1903 | #endif |
1528 | |
1904 | |
|
|
1905 | for (i = NUMPRI; i--; ) |
|
|
1906 | { |
|
|
1907 | assert (pendingmax [i] >= pendingcnt [i]); |
1529 | #if EV_IDLE_ENABLE |
1908 | #if EV_IDLE_ENABLE |
1530 | for (i = NUMPRI; i--; ) |
1909 | assert (idleall >= 0); |
|
|
1910 | assert (idlemax [i] >= idlecnt [i]); |
1531 | array_check ((W **)idles [i], idlecnt [i]); |
1911 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
1532 | #endif |
1912 | #endif |
|
|
1913 | } |
|
|
1914 | |
1533 | #if EV_FORK_ENABLE |
1915 | #if EV_FORK_ENABLE |
|
|
1916 | assert (forkmax >= forkcnt); |
1534 | array_check ((W **)forks, forkcnt); |
1917 | array_verify (EV_A_ (W *)forks, forkcnt); |
1535 | #endif |
1918 | #endif |
1536 | array_check ((W **)prepares, preparecnt); |
1919 | |
1537 | array_check ((W **)checks, checkcnt); |
|
|
1538 | #if EV_ASYNC_ENABLE |
1920 | #if EV_ASYNC_ENABLE |
|
|
1921 | assert (asyncmax >= asynccnt); |
1539 | array_check ((W **)asyncs, asynccnt); |
1922 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1923 | #endif |
|
|
1924 | |
|
|
1925 | #if EV_PREPARE_ENABLE |
|
|
1926 | assert (preparemax >= preparecnt); |
|
|
1927 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | #if EV_CHECK_ENABLE |
|
|
1931 | assert (checkmax >= checkcnt); |
|
|
1932 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1933 | #endif |
|
|
1934 | |
|
|
1935 | # if 0 |
|
|
1936 | #if EV_CHILD_ENABLE |
|
|
1937 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1938 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1939 | #endif |
1540 | #endif |
1940 | # endif |
1541 | } |
|
|
1542 | #endif |
1941 | #endif |
1543 | |
1942 | } |
1544 | #endif |
1943 | #endif |
1545 | |
1944 | |
1546 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
1547 | struct ev_loop * |
1946 | struct ev_loop * |
1548 | ev_default_loop_init (unsigned int flags) |
1947 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1552 | #endif |
1951 | #endif |
1553 | { |
1952 | { |
1554 | if (!ev_default_loop_ptr) |
1953 | if (!ev_default_loop_ptr) |
1555 | { |
1954 | { |
1556 | #if EV_MULTIPLICITY |
1955 | #if EV_MULTIPLICITY |
1557 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1956 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1558 | #else |
1957 | #else |
1559 | ev_default_loop_ptr = 1; |
1958 | ev_default_loop_ptr = 1; |
1560 | #endif |
1959 | #endif |
1561 | |
1960 | |
1562 | loop_init (EV_A_ flags); |
1961 | loop_init (EV_A_ flags); |
1563 | |
1962 | |
1564 | if (ev_backend (EV_A)) |
1963 | if (ev_backend (EV_A)) |
1565 | { |
1964 | { |
1566 | #ifndef _WIN32 |
1965 | #if EV_CHILD_ENABLE |
1567 | ev_signal_init (&childev, childcb, SIGCHLD); |
1966 | ev_signal_init (&childev, childcb, SIGCHLD); |
1568 | ev_set_priority (&childev, EV_MAXPRI); |
1967 | ev_set_priority (&childev, EV_MAXPRI); |
1569 | ev_signal_start (EV_A_ &childev); |
1968 | ev_signal_start (EV_A_ &childev); |
1570 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1969 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1571 | #endif |
1970 | #endif |
… | |
… | |
1579 | |
1978 | |
1580 | void |
1979 | void |
1581 | ev_default_destroy (void) |
1980 | ev_default_destroy (void) |
1582 | { |
1981 | { |
1583 | #if EV_MULTIPLICITY |
1982 | #if EV_MULTIPLICITY |
1584 | struct ev_loop *loop = ev_default_loop_ptr; |
1983 | EV_P = ev_default_loop_ptr; |
1585 | #endif |
1984 | #endif |
1586 | |
1985 | |
1587 | #ifndef _WIN32 |
1986 | ev_default_loop_ptr = 0; |
|
|
1987 | |
|
|
1988 | #if EV_CHILD_ENABLE |
1588 | ev_ref (EV_A); /* child watcher */ |
1989 | ev_ref (EV_A); /* child watcher */ |
1589 | ev_signal_stop (EV_A_ &childev); |
1990 | ev_signal_stop (EV_A_ &childev); |
1590 | #endif |
1991 | #endif |
1591 | |
1992 | |
1592 | loop_destroy (EV_A); |
1993 | loop_destroy (EV_A); |
… | |
… | |
1594 | |
1995 | |
1595 | void |
1996 | void |
1596 | ev_default_fork (void) |
1997 | ev_default_fork (void) |
1597 | { |
1998 | { |
1598 | #if EV_MULTIPLICITY |
1999 | #if EV_MULTIPLICITY |
1599 | struct ev_loop *loop = ev_default_loop_ptr; |
2000 | EV_P = ev_default_loop_ptr; |
1600 | #endif |
2001 | #endif |
1601 | |
2002 | |
1602 | if (backend) |
|
|
1603 | postfork = 1; /* must be in line with ev_loop_fork */ |
2003 | postfork = 1; /* must be in line with ev_loop_fork */ |
1604 | } |
2004 | } |
1605 | |
2005 | |
1606 | /*****************************************************************************/ |
2006 | /*****************************************************************************/ |
1607 | |
2007 | |
1608 | void |
2008 | void |
1609 | ev_invoke (EV_P_ void *w, int revents) |
2009 | ev_invoke (EV_P_ void *w, int revents) |
1610 | { |
2010 | { |
1611 | EV_CB_INVOKE ((W)w, revents); |
2011 | EV_CB_INVOKE ((W)w, revents); |
1612 | } |
2012 | } |
1613 | |
2013 | |
1614 | void inline_speed |
2014 | unsigned int |
1615 | call_pending (EV_P) |
2015 | ev_pending_count (EV_P) |
1616 | { |
2016 | { |
1617 | int pri; |
2017 | int pri; |
|
|
2018 | unsigned int count = 0; |
1618 | |
2019 | |
1619 | EV_FREQUENT_CHECK; |
2020 | for (pri = NUMPRI; pri--; ) |
|
|
2021 | count += pendingcnt [pri]; |
|
|
2022 | |
|
|
2023 | return count; |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | void noinline |
|
|
2027 | ev_invoke_pending (EV_P) |
|
|
2028 | { |
|
|
2029 | int pri; |
1620 | |
2030 | |
1621 | for (pri = NUMPRI; pri--; ) |
2031 | for (pri = NUMPRI; pri--; ) |
1622 | while (pendingcnt [pri]) |
2032 | while (pendingcnt [pri]) |
1623 | { |
2033 | { |
1624 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2034 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1625 | |
2035 | |
1626 | if (expect_true (p->w)) |
|
|
1627 | { |
|
|
1628 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2036 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2037 | /* ^ this is no longer true, as pending_w could be here */ |
1629 | |
2038 | |
1630 | p->w->pending = 0; |
2039 | p->w->pending = 0; |
1631 | EV_CB_INVOKE (p->w, p->events); |
2040 | EV_CB_INVOKE (p->w, p->events); |
1632 | } |
2041 | EV_FREQUENT_CHECK; |
1633 | } |
2042 | } |
1634 | |
|
|
1635 | EV_FREQUENT_CHECK; |
|
|
1636 | } |
2043 | } |
1637 | |
2044 | |
1638 | #if EV_IDLE_ENABLE |
2045 | #if EV_IDLE_ENABLE |
1639 | void inline_size |
2046 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2047 | /* only when higher priorities are idle" logic */ |
|
|
2048 | inline_size void |
1640 | idle_reify (EV_P) |
2049 | idle_reify (EV_P) |
1641 | { |
2050 | { |
1642 | if (expect_false (idleall)) |
2051 | if (expect_false (idleall)) |
1643 | { |
2052 | { |
1644 | int pri; |
2053 | int pri; |
… | |
… | |
1656 | } |
2065 | } |
1657 | } |
2066 | } |
1658 | } |
2067 | } |
1659 | #endif |
2068 | #endif |
1660 | |
2069 | |
1661 | void inline_size |
2070 | /* make timers pending */ |
|
|
2071 | inline_size void |
1662 | timers_reify (EV_P) |
2072 | timers_reify (EV_P) |
1663 | { |
2073 | { |
1664 | EV_FREQUENT_CHECK; |
2074 | EV_FREQUENT_CHECK; |
1665 | |
2075 | |
1666 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2076 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1667 | { |
2077 | { |
1668 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2078 | do |
1669 | |
|
|
1670 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1671 | |
|
|
1672 | /* first reschedule or stop timer */ |
|
|
1673 | if (w->repeat) |
|
|
1674 | { |
2079 | { |
|
|
2080 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2081 | |
|
|
2082 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2083 | |
|
|
2084 | /* first reschedule or stop timer */ |
|
|
2085 | if (w->repeat) |
|
|
2086 | { |
1675 | ev_at (w) += w->repeat; |
2087 | ev_at (w) += w->repeat; |
1676 | if (ev_at (w) < mn_now) |
2088 | if (ev_at (w) < mn_now) |
1677 | ev_at (w) = mn_now; |
2089 | ev_at (w) = mn_now; |
1678 | |
2090 | |
1679 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2091 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1680 | |
2092 | |
1681 | ANHE_at_cache (timers [HEAP0]); |
2093 | ANHE_at_cache (timers [HEAP0]); |
1682 | downheap (timers, timercnt, HEAP0); |
2094 | downheap (timers, timercnt, HEAP0); |
|
|
2095 | } |
|
|
2096 | else |
|
|
2097 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2098 | |
|
|
2099 | EV_FREQUENT_CHECK; |
|
|
2100 | feed_reverse (EV_A_ (W)w); |
1683 | } |
2101 | } |
1684 | else |
2102 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1685 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1686 | |
2103 | |
1687 | EV_FREQUENT_CHECK; |
2104 | feed_reverse_done (EV_A_ EV_TIMER); |
1688 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1689 | } |
2105 | } |
1690 | } |
2106 | } |
1691 | |
2107 | |
1692 | #if EV_PERIODIC_ENABLE |
2108 | #if EV_PERIODIC_ENABLE |
1693 | void inline_size |
2109 | /* make periodics pending */ |
|
|
2110 | inline_size void |
1694 | periodics_reify (EV_P) |
2111 | periodics_reify (EV_P) |
1695 | { |
2112 | { |
1696 | EV_FREQUENT_CHECK; |
2113 | EV_FREQUENT_CHECK; |
|
|
2114 | |
1697 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2115 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1698 | { |
2116 | { |
1699 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2117 | int feed_count = 0; |
1700 | |
2118 | |
1701 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2119 | do |
1702 | |
|
|
1703 | /* first reschedule or stop timer */ |
|
|
1704 | if (w->reschedule_cb) |
|
|
1705 | { |
2120 | { |
|
|
2121 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2122 | |
|
|
2123 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2124 | |
|
|
2125 | /* first reschedule or stop timer */ |
|
|
2126 | if (w->reschedule_cb) |
|
|
2127 | { |
1706 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2128 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | |
2129 | |
1708 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2130 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1709 | |
2131 | |
1710 | ANHE_at_cache (periodics [HEAP0]); |
2132 | ANHE_at_cache (periodics [HEAP0]); |
1711 | downheap (periodics, periodiccnt, HEAP0); |
2133 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2134 | } |
|
|
2135 | else if (w->interval) |
|
|
2136 | { |
|
|
2137 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2138 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2139 | /* this might happen because of floating point inexactness */ |
|
|
2140 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2141 | { |
|
|
2142 | ev_at (w) += w->interval; |
|
|
2143 | |
|
|
2144 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2145 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2146 | /* has effectively asked to get triggered more often than possible */ |
|
|
2147 | if (ev_at (w) < ev_rt_now) |
|
|
2148 | ev_at (w) = ev_rt_now; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2152 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2153 | } |
|
|
2154 | else |
|
|
2155 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2156 | |
1712 | EV_FREQUENT_CHECK; |
2157 | EV_FREQUENT_CHECK; |
|
|
2158 | feed_reverse (EV_A_ (W)w); |
1713 | } |
2159 | } |
1714 | else if (w->interval) |
2160 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1715 | { |
|
|
1716 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1717 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1718 | /* this might happen because of floating point inexactness */ |
|
|
1719 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1720 | { |
|
|
1721 | ev_at (w) += w->interval; |
|
|
1722 | |
2161 | |
1723 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1724 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1725 | /* has effectively asked to get triggered more often than possible */ |
|
|
1726 | if (ev_at (w) < ev_rt_now) |
|
|
1727 | ev_at (w) = ev_rt_now; |
|
|
1728 | } |
|
|
1729 | |
|
|
1730 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1731 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1732 | } |
|
|
1733 | else |
|
|
1734 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1735 | |
|
|
1736 | EV_FREQUENT_CHECK; |
|
|
1737 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2162 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1738 | } |
2163 | } |
1739 | } |
2164 | } |
1740 | |
2165 | |
|
|
2166 | /* simply recalculate all periodics */ |
|
|
2167 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1741 | static void noinline |
2168 | static void noinline |
1742 | periodics_reschedule (EV_P) |
2169 | periodics_reschedule (EV_P) |
1743 | { |
2170 | { |
1744 | int i; |
2171 | int i; |
1745 | |
2172 | |
… | |
… | |
1758 | |
2185 | |
1759 | reheap (periodics, periodiccnt); |
2186 | reheap (periodics, periodiccnt); |
1760 | } |
2187 | } |
1761 | #endif |
2188 | #endif |
1762 | |
2189 | |
1763 | void inline_speed |
2190 | /* adjust all timers by a given offset */ |
|
|
2191 | static void noinline |
|
|
2192 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2193 | { |
|
|
2194 | int i; |
|
|
2195 | |
|
|
2196 | for (i = 0; i < timercnt; ++i) |
|
|
2197 | { |
|
|
2198 | ANHE *he = timers + i + HEAP0; |
|
|
2199 | ANHE_w (*he)->at += adjust; |
|
|
2200 | ANHE_at_cache (*he); |
|
|
2201 | } |
|
|
2202 | } |
|
|
2203 | |
|
|
2204 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2205 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2206 | inline_speed void |
1764 | time_update (EV_P_ ev_tstamp max_block) |
2207 | time_update (EV_P_ ev_tstamp max_block) |
1765 | { |
2208 | { |
1766 | int i; |
|
|
1767 | |
|
|
1768 | #if EV_USE_MONOTONIC |
2209 | #if EV_USE_MONOTONIC |
1769 | if (expect_true (have_monotonic)) |
2210 | if (expect_true (have_monotonic)) |
1770 | { |
2211 | { |
|
|
2212 | int i; |
1771 | ev_tstamp odiff = rtmn_diff; |
2213 | ev_tstamp odiff = rtmn_diff; |
1772 | |
2214 | |
1773 | mn_now = get_clock (); |
2215 | mn_now = get_clock (); |
1774 | |
2216 | |
1775 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2217 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1801 | ev_rt_now = ev_time (); |
2243 | ev_rt_now = ev_time (); |
1802 | mn_now = get_clock (); |
2244 | mn_now = get_clock (); |
1803 | now_floor = mn_now; |
2245 | now_floor = mn_now; |
1804 | } |
2246 | } |
1805 | |
2247 | |
|
|
2248 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2249 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1806 | # if EV_PERIODIC_ENABLE |
2250 | # if EV_PERIODIC_ENABLE |
1807 | periodics_reschedule (EV_A); |
2251 | periodics_reschedule (EV_A); |
1808 | # endif |
2252 | # endif |
1809 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1810 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1811 | } |
2253 | } |
1812 | else |
2254 | else |
1813 | #endif |
2255 | #endif |
1814 | { |
2256 | { |
1815 | ev_rt_now = ev_time (); |
2257 | ev_rt_now = ev_time (); |
1816 | |
2258 | |
1817 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2259 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1818 | { |
2260 | { |
|
|
2261 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2262 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1819 | #if EV_PERIODIC_ENABLE |
2263 | #if EV_PERIODIC_ENABLE |
1820 | periodics_reschedule (EV_A); |
2264 | periodics_reschedule (EV_A); |
1821 | #endif |
2265 | #endif |
1822 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1823 | for (i = 0; i < timercnt; ++i) |
|
|
1824 | { |
|
|
1825 | ANHE *he = timers + i + HEAP0; |
|
|
1826 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1827 | ANHE_at_cache (*he); |
|
|
1828 | } |
|
|
1829 | } |
2266 | } |
1830 | |
2267 | |
1831 | mn_now = ev_rt_now; |
2268 | mn_now = ev_rt_now; |
1832 | } |
2269 | } |
1833 | } |
2270 | } |
1834 | |
2271 | |
1835 | void |
2272 | void |
1836 | ev_ref (EV_P) |
|
|
1837 | { |
|
|
1838 | ++activecnt; |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | void |
|
|
1842 | ev_unref (EV_P) |
|
|
1843 | { |
|
|
1844 | --activecnt; |
|
|
1845 | } |
|
|
1846 | |
|
|
1847 | static int loop_done; |
|
|
1848 | |
|
|
1849 | void |
|
|
1850 | ev_loop (EV_P_ int flags) |
2273 | ev_loop (EV_P_ int flags) |
1851 | { |
2274 | { |
|
|
2275 | #if EV_FEATURE_API |
|
|
2276 | ++loop_depth; |
|
|
2277 | #endif |
|
|
2278 | |
|
|
2279 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2280 | |
1852 | loop_done = EVUNLOOP_CANCEL; |
2281 | loop_done = EVUNLOOP_CANCEL; |
1853 | |
2282 | |
1854 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2283 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1855 | |
2284 | |
1856 | do |
2285 | do |
1857 | { |
2286 | { |
|
|
2287 | #if EV_VERIFY >= 2 |
|
|
2288 | ev_verify (EV_A); |
|
|
2289 | #endif |
|
|
2290 | |
1858 | #ifndef _WIN32 |
2291 | #ifndef _WIN32 |
1859 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2292 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1860 | if (expect_false (getpid () != curpid)) |
2293 | if (expect_false (getpid () != curpid)) |
1861 | { |
2294 | { |
1862 | curpid = getpid (); |
2295 | curpid = getpid (); |
… | |
… | |
1868 | /* we might have forked, so queue fork handlers */ |
2301 | /* we might have forked, so queue fork handlers */ |
1869 | if (expect_false (postfork)) |
2302 | if (expect_false (postfork)) |
1870 | if (forkcnt) |
2303 | if (forkcnt) |
1871 | { |
2304 | { |
1872 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2305 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1873 | call_pending (EV_A); |
2306 | EV_INVOKE_PENDING; |
1874 | } |
2307 | } |
1875 | #endif |
2308 | #endif |
1876 | |
2309 | |
|
|
2310 | #if EV_PREPARE_ENABLE |
1877 | /* queue prepare watchers (and execute them) */ |
2311 | /* queue prepare watchers (and execute them) */ |
1878 | if (expect_false (preparecnt)) |
2312 | if (expect_false (preparecnt)) |
1879 | { |
2313 | { |
1880 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2314 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1881 | call_pending (EV_A); |
2315 | EV_INVOKE_PENDING; |
1882 | } |
2316 | } |
|
|
2317 | #endif |
1883 | |
2318 | |
1884 | if (expect_false (!activecnt)) |
2319 | if (expect_false (loop_done)) |
1885 | break; |
2320 | break; |
1886 | |
2321 | |
1887 | /* we might have forked, so reify kernel state if necessary */ |
2322 | /* we might have forked, so reify kernel state if necessary */ |
1888 | if (expect_false (postfork)) |
2323 | if (expect_false (postfork)) |
1889 | loop_fork (EV_A); |
2324 | loop_fork (EV_A); |
… | |
… | |
1896 | ev_tstamp waittime = 0.; |
2331 | ev_tstamp waittime = 0.; |
1897 | ev_tstamp sleeptime = 0.; |
2332 | ev_tstamp sleeptime = 0.; |
1898 | |
2333 | |
1899 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2334 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1900 | { |
2335 | { |
|
|
2336 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2337 | ev_tstamp prev_mn_now = mn_now; |
|
|
2338 | |
1901 | /* update time to cancel out callback processing overhead */ |
2339 | /* update time to cancel out callback processing overhead */ |
1902 | time_update (EV_A_ 1e100); |
2340 | time_update (EV_A_ 1e100); |
1903 | |
2341 | |
1904 | waittime = MAX_BLOCKTIME; |
2342 | waittime = MAX_BLOCKTIME; |
1905 | |
2343 | |
… | |
… | |
1915 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2353 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1916 | if (waittime > to) waittime = to; |
2354 | if (waittime > to) waittime = to; |
1917 | } |
2355 | } |
1918 | #endif |
2356 | #endif |
1919 | |
2357 | |
|
|
2358 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1920 | if (expect_false (waittime < timeout_blocktime)) |
2359 | if (expect_false (waittime < timeout_blocktime)) |
1921 | waittime = timeout_blocktime; |
2360 | waittime = timeout_blocktime; |
1922 | |
2361 | |
1923 | sleeptime = waittime - backend_fudge; |
2362 | /* extra check because io_blocktime is commonly 0 */ |
1924 | |
|
|
1925 | if (expect_true (sleeptime > io_blocktime)) |
2363 | if (expect_false (io_blocktime)) |
1926 | sleeptime = io_blocktime; |
|
|
1927 | |
|
|
1928 | if (sleeptime) |
|
|
1929 | { |
2364 | { |
|
|
2365 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2366 | |
|
|
2367 | if (sleeptime > waittime - backend_fudge) |
|
|
2368 | sleeptime = waittime - backend_fudge; |
|
|
2369 | |
|
|
2370 | if (expect_true (sleeptime > 0.)) |
|
|
2371 | { |
1930 | ev_sleep (sleeptime); |
2372 | ev_sleep (sleeptime); |
1931 | waittime -= sleeptime; |
2373 | waittime -= sleeptime; |
|
|
2374 | } |
1932 | } |
2375 | } |
1933 | } |
2376 | } |
1934 | |
2377 | |
|
|
2378 | #if EV_FEATURE_API |
1935 | ++loop_count; |
2379 | ++loop_count; |
|
|
2380 | #endif |
|
|
2381 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1936 | backend_poll (EV_A_ waittime); |
2382 | backend_poll (EV_A_ waittime); |
|
|
2383 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1937 | |
2384 | |
1938 | /* update ev_rt_now, do magic */ |
2385 | /* update ev_rt_now, do magic */ |
1939 | time_update (EV_A_ waittime + sleeptime); |
2386 | time_update (EV_A_ waittime + sleeptime); |
1940 | } |
2387 | } |
1941 | |
2388 | |
… | |
… | |
1948 | #if EV_IDLE_ENABLE |
2395 | #if EV_IDLE_ENABLE |
1949 | /* queue idle watchers unless other events are pending */ |
2396 | /* queue idle watchers unless other events are pending */ |
1950 | idle_reify (EV_A); |
2397 | idle_reify (EV_A); |
1951 | #endif |
2398 | #endif |
1952 | |
2399 | |
|
|
2400 | #if EV_CHECK_ENABLE |
1953 | /* queue check watchers, to be executed first */ |
2401 | /* queue check watchers, to be executed first */ |
1954 | if (expect_false (checkcnt)) |
2402 | if (expect_false (checkcnt)) |
1955 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2403 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2404 | #endif |
1956 | |
2405 | |
1957 | call_pending (EV_A); |
2406 | EV_INVOKE_PENDING; |
1958 | } |
2407 | } |
1959 | while (expect_true ( |
2408 | while (expect_true ( |
1960 | activecnt |
2409 | activecnt |
1961 | && !loop_done |
2410 | && !loop_done |
1962 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2411 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1963 | )); |
2412 | )); |
1964 | |
2413 | |
1965 | if (loop_done == EVUNLOOP_ONE) |
2414 | if (loop_done == EVUNLOOP_ONE) |
1966 | loop_done = EVUNLOOP_CANCEL; |
2415 | loop_done = EVUNLOOP_CANCEL; |
|
|
2416 | |
|
|
2417 | #if EV_FEATURE_API |
|
|
2418 | --loop_depth; |
|
|
2419 | #endif |
1967 | } |
2420 | } |
1968 | |
2421 | |
1969 | void |
2422 | void |
1970 | ev_unloop (EV_P_ int how) |
2423 | ev_unloop (EV_P_ int how) |
1971 | { |
2424 | { |
1972 | loop_done = how; |
2425 | loop_done = how; |
1973 | } |
2426 | } |
1974 | |
2427 | |
|
|
2428 | void |
|
|
2429 | ev_ref (EV_P) |
|
|
2430 | { |
|
|
2431 | ++activecnt; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | void |
|
|
2435 | ev_unref (EV_P) |
|
|
2436 | { |
|
|
2437 | --activecnt; |
|
|
2438 | } |
|
|
2439 | |
|
|
2440 | void |
|
|
2441 | ev_now_update (EV_P) |
|
|
2442 | { |
|
|
2443 | time_update (EV_A_ 1e100); |
|
|
2444 | } |
|
|
2445 | |
|
|
2446 | void |
|
|
2447 | ev_suspend (EV_P) |
|
|
2448 | { |
|
|
2449 | ev_now_update (EV_A); |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_resume (EV_P) |
|
|
2454 | { |
|
|
2455 | ev_tstamp mn_prev = mn_now; |
|
|
2456 | |
|
|
2457 | ev_now_update (EV_A); |
|
|
2458 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2459 | #if EV_PERIODIC_ENABLE |
|
|
2460 | /* TODO: really do this? */ |
|
|
2461 | periodics_reschedule (EV_A); |
|
|
2462 | #endif |
|
|
2463 | } |
|
|
2464 | |
1975 | /*****************************************************************************/ |
2465 | /*****************************************************************************/ |
|
|
2466 | /* singly-linked list management, used when the expected list length is short */ |
1976 | |
2467 | |
1977 | void inline_size |
2468 | inline_size void |
1978 | wlist_add (WL *head, WL elem) |
2469 | wlist_add (WL *head, WL elem) |
1979 | { |
2470 | { |
1980 | elem->next = *head; |
2471 | elem->next = *head; |
1981 | *head = elem; |
2472 | *head = elem; |
1982 | } |
2473 | } |
1983 | |
2474 | |
1984 | void inline_size |
2475 | inline_size void |
1985 | wlist_del (WL *head, WL elem) |
2476 | wlist_del (WL *head, WL elem) |
1986 | { |
2477 | { |
1987 | while (*head) |
2478 | while (*head) |
1988 | { |
2479 | { |
1989 | if (*head == elem) |
2480 | if (expect_true (*head == elem)) |
1990 | { |
2481 | { |
1991 | *head = elem->next; |
2482 | *head = elem->next; |
1992 | return; |
2483 | break; |
1993 | } |
2484 | } |
1994 | |
2485 | |
1995 | head = &(*head)->next; |
2486 | head = &(*head)->next; |
1996 | } |
2487 | } |
1997 | } |
2488 | } |
1998 | |
2489 | |
1999 | void inline_speed |
2490 | /* internal, faster, version of ev_clear_pending */ |
|
|
2491 | inline_speed void |
2000 | clear_pending (EV_P_ W w) |
2492 | clear_pending (EV_P_ W w) |
2001 | { |
2493 | { |
2002 | if (w->pending) |
2494 | if (w->pending) |
2003 | { |
2495 | { |
2004 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2496 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2005 | w->pending = 0; |
2497 | w->pending = 0; |
2006 | } |
2498 | } |
2007 | } |
2499 | } |
2008 | |
2500 | |
2009 | int |
2501 | int |
… | |
… | |
2013 | int pending = w_->pending; |
2505 | int pending = w_->pending; |
2014 | |
2506 | |
2015 | if (expect_true (pending)) |
2507 | if (expect_true (pending)) |
2016 | { |
2508 | { |
2017 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2509 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2510 | p->w = (W)&pending_w; |
2018 | w_->pending = 0; |
2511 | w_->pending = 0; |
2019 | p->w = 0; |
|
|
2020 | return p->events; |
2512 | return p->events; |
2021 | } |
2513 | } |
2022 | else |
2514 | else |
2023 | return 0; |
2515 | return 0; |
2024 | } |
2516 | } |
2025 | |
2517 | |
2026 | void inline_size |
2518 | inline_size void |
2027 | pri_adjust (EV_P_ W w) |
2519 | pri_adjust (EV_P_ W w) |
2028 | { |
2520 | { |
2029 | int pri = w->priority; |
2521 | int pri = ev_priority (w); |
2030 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2522 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2031 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2523 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2032 | w->priority = pri; |
2524 | ev_set_priority (w, pri); |
2033 | } |
2525 | } |
2034 | |
2526 | |
2035 | void inline_speed |
2527 | inline_speed void |
2036 | ev_start (EV_P_ W w, int active) |
2528 | ev_start (EV_P_ W w, int active) |
2037 | { |
2529 | { |
2038 | pri_adjust (EV_A_ w); |
2530 | pri_adjust (EV_A_ w); |
2039 | w->active = active; |
2531 | w->active = active; |
2040 | ev_ref (EV_A); |
2532 | ev_ref (EV_A); |
2041 | } |
2533 | } |
2042 | |
2534 | |
2043 | void inline_size |
2535 | inline_size void |
2044 | ev_stop (EV_P_ W w) |
2536 | ev_stop (EV_P_ W w) |
2045 | { |
2537 | { |
2046 | ev_unref (EV_A); |
2538 | ev_unref (EV_A); |
2047 | w->active = 0; |
2539 | w->active = 0; |
2048 | } |
2540 | } |
… | |
… | |
2055 | int fd = w->fd; |
2547 | int fd = w->fd; |
2056 | |
2548 | |
2057 | if (expect_false (ev_is_active (w))) |
2549 | if (expect_false (ev_is_active (w))) |
2058 | return; |
2550 | return; |
2059 | |
2551 | |
2060 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2552 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2553 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2061 | |
2554 | |
2062 | EV_FREQUENT_CHECK; |
2555 | EV_FREQUENT_CHECK; |
2063 | |
2556 | |
2064 | ev_start (EV_A_ (W)w, 1); |
2557 | ev_start (EV_A_ (W)w, 1); |
2065 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2558 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2066 | wlist_add (&anfds[fd].head, (WL)w); |
2559 | wlist_add (&anfds[fd].head, (WL)w); |
2067 | |
2560 | |
2068 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2561 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2069 | w->events &= ~EV_IOFDSET; |
2562 | w->events &= ~EV__IOFDSET; |
2070 | |
2563 | |
2071 | EV_FREQUENT_CHECK; |
2564 | EV_FREQUENT_CHECK; |
2072 | } |
2565 | } |
2073 | |
2566 | |
2074 | void noinline |
2567 | void noinline |
… | |
… | |
2076 | { |
2569 | { |
2077 | clear_pending (EV_A_ (W)w); |
2570 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
2571 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
2572 | return; |
2080 | |
2573 | |
2081 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2574 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2082 | |
2575 | |
2083 | EV_FREQUENT_CHECK; |
2576 | EV_FREQUENT_CHECK; |
2084 | |
2577 | |
2085 | wlist_del (&anfds[w->fd].head, (WL)w); |
2578 | wlist_del (&anfds[w->fd].head, (WL)w); |
2086 | ev_stop (EV_A_ (W)w); |
2579 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2096 | if (expect_false (ev_is_active (w))) |
2589 | if (expect_false (ev_is_active (w))) |
2097 | return; |
2590 | return; |
2098 | |
2591 | |
2099 | ev_at (w) += mn_now; |
2592 | ev_at (w) += mn_now; |
2100 | |
2593 | |
2101 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2594 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2102 | |
2595 | |
2103 | EV_FREQUENT_CHECK; |
2596 | EV_FREQUENT_CHECK; |
2104 | |
2597 | |
2105 | ++timercnt; |
2598 | ++timercnt; |
2106 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2599 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2109 | ANHE_at_cache (timers [ev_active (w)]); |
2602 | ANHE_at_cache (timers [ev_active (w)]); |
2110 | upheap (timers, ev_active (w)); |
2603 | upheap (timers, ev_active (w)); |
2111 | |
2604 | |
2112 | EV_FREQUENT_CHECK; |
2605 | EV_FREQUENT_CHECK; |
2113 | |
2606 | |
2114 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2607 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2115 | } |
2608 | } |
2116 | |
2609 | |
2117 | void noinline |
2610 | void noinline |
2118 | ev_timer_stop (EV_P_ ev_timer *w) |
2611 | ev_timer_stop (EV_P_ ev_timer *w) |
2119 | { |
2612 | { |
… | |
… | |
2124 | EV_FREQUENT_CHECK; |
2617 | EV_FREQUENT_CHECK; |
2125 | |
2618 | |
2126 | { |
2619 | { |
2127 | int active = ev_active (w); |
2620 | int active = ev_active (w); |
2128 | |
2621 | |
2129 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2622 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2130 | |
2623 | |
2131 | --timercnt; |
2624 | --timercnt; |
2132 | |
2625 | |
2133 | if (expect_true (active < timercnt + HEAP0)) |
2626 | if (expect_true (active < timercnt + HEAP0)) |
2134 | { |
2627 | { |
2135 | timers [active] = timers [timercnt + HEAP0]; |
2628 | timers [active] = timers [timercnt + HEAP0]; |
2136 | adjustheap (timers, timercnt, active); |
2629 | adjustheap (timers, timercnt, active); |
2137 | } |
2630 | } |
2138 | } |
2631 | } |
2139 | |
2632 | |
2140 | EV_FREQUENT_CHECK; |
|
|
2141 | |
|
|
2142 | ev_at (w) -= mn_now; |
2633 | ev_at (w) -= mn_now; |
2143 | |
2634 | |
2144 | ev_stop (EV_A_ (W)w); |
2635 | ev_stop (EV_A_ (W)w); |
|
|
2636 | |
|
|
2637 | EV_FREQUENT_CHECK; |
2145 | } |
2638 | } |
2146 | |
2639 | |
2147 | void noinline |
2640 | void noinline |
2148 | ev_timer_again (EV_P_ ev_timer *w) |
2641 | ev_timer_again (EV_P_ ev_timer *w) |
2149 | { |
2642 | { |
… | |
… | |
2167 | } |
2660 | } |
2168 | |
2661 | |
2169 | EV_FREQUENT_CHECK; |
2662 | EV_FREQUENT_CHECK; |
2170 | } |
2663 | } |
2171 | |
2664 | |
|
|
2665 | ev_tstamp |
|
|
2666 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2667 | { |
|
|
2668 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2669 | } |
|
|
2670 | |
2172 | #if EV_PERIODIC_ENABLE |
2671 | #if EV_PERIODIC_ENABLE |
2173 | void noinline |
2672 | void noinline |
2174 | ev_periodic_start (EV_P_ ev_periodic *w) |
2673 | ev_periodic_start (EV_P_ ev_periodic *w) |
2175 | { |
2674 | { |
2176 | if (expect_false (ev_is_active (w))) |
2675 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2178 | |
2677 | |
2179 | if (w->reschedule_cb) |
2678 | if (w->reschedule_cb) |
2180 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2679 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2181 | else if (w->interval) |
2680 | else if (w->interval) |
2182 | { |
2681 | { |
2183 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2682 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2184 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2683 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2684 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2186 | } |
2685 | } |
2187 | else |
2686 | else |
2188 | ev_at (w) = w->offset; |
2687 | ev_at (w) = w->offset; |
… | |
… | |
2196 | ANHE_at_cache (periodics [ev_active (w)]); |
2695 | ANHE_at_cache (periodics [ev_active (w)]); |
2197 | upheap (periodics, ev_active (w)); |
2696 | upheap (periodics, ev_active (w)); |
2198 | |
2697 | |
2199 | EV_FREQUENT_CHECK; |
2698 | EV_FREQUENT_CHECK; |
2200 | |
2699 | |
2201 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2700 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2202 | } |
2701 | } |
2203 | |
2702 | |
2204 | void noinline |
2703 | void noinline |
2205 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2704 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2206 | { |
2705 | { |
… | |
… | |
2211 | EV_FREQUENT_CHECK; |
2710 | EV_FREQUENT_CHECK; |
2212 | |
2711 | |
2213 | { |
2712 | { |
2214 | int active = ev_active (w); |
2713 | int active = ev_active (w); |
2215 | |
2714 | |
2216 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2715 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2217 | |
2716 | |
2218 | --periodiccnt; |
2717 | --periodiccnt; |
2219 | |
2718 | |
2220 | if (expect_true (active < periodiccnt + HEAP0)) |
2719 | if (expect_true (active < periodiccnt + HEAP0)) |
2221 | { |
2720 | { |
2222 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2721 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2223 | adjustheap (periodics, periodiccnt, active); |
2722 | adjustheap (periodics, periodiccnt, active); |
2224 | } |
2723 | } |
2225 | } |
2724 | } |
2226 | |
2725 | |
2227 | EV_FREQUENT_CHECK; |
|
|
2228 | |
|
|
2229 | ev_stop (EV_A_ (W)w); |
2726 | ev_stop (EV_A_ (W)w); |
|
|
2727 | |
|
|
2728 | EV_FREQUENT_CHECK; |
2230 | } |
2729 | } |
2231 | |
2730 | |
2232 | void noinline |
2731 | void noinline |
2233 | ev_periodic_again (EV_P_ ev_periodic *w) |
2732 | ev_periodic_again (EV_P_ ev_periodic *w) |
2234 | { |
2733 | { |
… | |
… | |
2240 | |
2739 | |
2241 | #ifndef SA_RESTART |
2740 | #ifndef SA_RESTART |
2242 | # define SA_RESTART 0 |
2741 | # define SA_RESTART 0 |
2243 | #endif |
2742 | #endif |
2244 | |
2743 | |
|
|
2744 | #if EV_SIGNAL_ENABLE |
|
|
2745 | |
2245 | void noinline |
2746 | void noinline |
2246 | ev_signal_start (EV_P_ ev_signal *w) |
2747 | ev_signal_start (EV_P_ ev_signal *w) |
2247 | { |
2748 | { |
2248 | #if EV_MULTIPLICITY |
|
|
2249 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2250 | #endif |
|
|
2251 | if (expect_false (ev_is_active (w))) |
2749 | if (expect_false (ev_is_active (w))) |
2252 | return; |
2750 | return; |
2253 | |
2751 | |
2254 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2752 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2255 | |
2753 | |
2256 | evpipe_init (EV_A); |
2754 | #if EV_MULTIPLICITY |
|
|
2755 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2756 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2257 | |
2757 | |
2258 | EV_FREQUENT_CHECK; |
2758 | signals [w->signum - 1].loop = EV_A; |
|
|
2759 | #endif |
2259 | |
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
|
|
2763 | #if EV_USE_SIGNALFD |
|
|
2764 | if (sigfd == -2) |
2260 | { |
2765 | { |
2261 | #ifndef _WIN32 |
2766 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2262 | sigset_t full, prev; |
2767 | if (sigfd < 0 && errno == EINVAL) |
2263 | sigfillset (&full); |
2768 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2264 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2265 | #endif |
|
|
2266 | |
2769 | |
2267 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2770 | if (sigfd >= 0) |
|
|
2771 | { |
|
|
2772 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2268 | |
2773 | |
2269 | #ifndef _WIN32 |
2774 | sigemptyset (&sigfd_set); |
2270 | sigprocmask (SIG_SETMASK, &prev, 0); |
2775 | |
2271 | #endif |
2776 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2777 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2778 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2779 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2780 | } |
2272 | } |
2781 | } |
|
|
2782 | |
|
|
2783 | if (sigfd >= 0) |
|
|
2784 | { |
|
|
2785 | /* TODO: check .head */ |
|
|
2786 | sigaddset (&sigfd_set, w->signum); |
|
|
2787 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2788 | |
|
|
2789 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2790 | } |
|
|
2791 | #endif |
2273 | |
2792 | |
2274 | ev_start (EV_A_ (W)w, 1); |
2793 | ev_start (EV_A_ (W)w, 1); |
2275 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2794 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2276 | |
2795 | |
2277 | if (!((WL)w)->next) |
2796 | if (!((WL)w)->next) |
|
|
2797 | # if EV_USE_SIGNALFD |
|
|
2798 | if (sigfd < 0) /*TODO*/ |
|
|
2799 | # endif |
2278 | { |
2800 | { |
2279 | #if _WIN32 |
2801 | # ifdef _WIN32 |
|
|
2802 | evpipe_init (EV_A); |
|
|
2803 | |
2280 | signal (w->signum, ev_sighandler); |
2804 | signal (w->signum, ev_sighandler); |
2281 | #else |
2805 | # else |
2282 | struct sigaction sa; |
2806 | struct sigaction sa; |
|
|
2807 | |
|
|
2808 | evpipe_init (EV_A); |
|
|
2809 | |
2283 | sa.sa_handler = ev_sighandler; |
2810 | sa.sa_handler = ev_sighandler; |
2284 | sigfillset (&sa.sa_mask); |
2811 | sigfillset (&sa.sa_mask); |
2285 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2812 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2286 | sigaction (w->signum, &sa, 0); |
2813 | sigaction (w->signum, &sa, 0); |
|
|
2814 | |
|
|
2815 | sigemptyset (&sa.sa_mask); |
|
|
2816 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2817 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2287 | #endif |
2818 | #endif |
2288 | } |
2819 | } |
2289 | |
2820 | |
2290 | EV_FREQUENT_CHECK; |
2821 | EV_FREQUENT_CHECK; |
2291 | } |
2822 | } |
2292 | |
2823 | |
2293 | void noinline |
2824 | void noinline |
… | |
… | |
2301 | |
2832 | |
2302 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2833 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2303 | ev_stop (EV_A_ (W)w); |
2834 | ev_stop (EV_A_ (W)w); |
2304 | |
2835 | |
2305 | if (!signals [w->signum - 1].head) |
2836 | if (!signals [w->signum - 1].head) |
|
|
2837 | { |
|
|
2838 | #if EV_MULTIPLICITY |
|
|
2839 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2840 | #endif |
|
|
2841 | #if EV_USE_SIGNALFD |
|
|
2842 | if (sigfd >= 0) |
|
|
2843 | { |
|
|
2844 | sigset_t ss; |
|
|
2845 | |
|
|
2846 | sigemptyset (&ss); |
|
|
2847 | sigaddset (&ss, w->signum); |
|
|
2848 | sigdelset (&sigfd_set, w->signum); |
|
|
2849 | |
|
|
2850 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2851 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2852 | } |
|
|
2853 | else |
|
|
2854 | #endif |
2306 | signal (w->signum, SIG_DFL); |
2855 | signal (w->signum, SIG_DFL); |
|
|
2856 | } |
2307 | |
2857 | |
2308 | EV_FREQUENT_CHECK; |
2858 | EV_FREQUENT_CHECK; |
2309 | } |
2859 | } |
|
|
2860 | |
|
|
2861 | #endif |
|
|
2862 | |
|
|
2863 | #if EV_CHILD_ENABLE |
2310 | |
2864 | |
2311 | void |
2865 | void |
2312 | ev_child_start (EV_P_ ev_child *w) |
2866 | ev_child_start (EV_P_ ev_child *w) |
2313 | { |
2867 | { |
2314 | #if EV_MULTIPLICITY |
2868 | #if EV_MULTIPLICITY |
2315 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2869 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2316 | #endif |
2870 | #endif |
2317 | if (expect_false (ev_is_active (w))) |
2871 | if (expect_false (ev_is_active (w))) |
2318 | return; |
2872 | return; |
2319 | |
2873 | |
2320 | EV_FREQUENT_CHECK; |
2874 | EV_FREQUENT_CHECK; |
2321 | |
2875 | |
2322 | ev_start (EV_A_ (W)w, 1); |
2876 | ev_start (EV_A_ (W)w, 1); |
2323 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2877 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2324 | |
2878 | |
2325 | EV_FREQUENT_CHECK; |
2879 | EV_FREQUENT_CHECK; |
2326 | } |
2880 | } |
2327 | |
2881 | |
2328 | void |
2882 | void |
… | |
… | |
2332 | if (expect_false (!ev_is_active (w))) |
2886 | if (expect_false (!ev_is_active (w))) |
2333 | return; |
2887 | return; |
2334 | |
2888 | |
2335 | EV_FREQUENT_CHECK; |
2889 | EV_FREQUENT_CHECK; |
2336 | |
2890 | |
2337 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2891 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2338 | ev_stop (EV_A_ (W)w); |
2892 | ev_stop (EV_A_ (W)w); |
2339 | |
2893 | |
2340 | EV_FREQUENT_CHECK; |
2894 | EV_FREQUENT_CHECK; |
2341 | } |
2895 | } |
|
|
2896 | |
|
|
2897 | #endif |
2342 | |
2898 | |
2343 | #if EV_STAT_ENABLE |
2899 | #if EV_STAT_ENABLE |
2344 | |
2900 | |
2345 | # ifdef _WIN32 |
2901 | # ifdef _WIN32 |
2346 | # undef lstat |
2902 | # undef lstat |
2347 | # define lstat(a,b) _stati64 (a,b) |
2903 | # define lstat(a,b) _stati64 (a,b) |
2348 | # endif |
2904 | # endif |
2349 | |
2905 | |
2350 | #define DEF_STAT_INTERVAL 5.0074891 |
2906 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2907 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2351 | #define MIN_STAT_INTERVAL 0.1074891 |
2908 | #define MIN_STAT_INTERVAL 0.1074891 |
2352 | |
2909 | |
2353 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2910 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2354 | |
2911 | |
2355 | #if EV_USE_INOTIFY |
2912 | #if EV_USE_INOTIFY |
2356 | # define EV_INOTIFY_BUFSIZE 8192 |
2913 | |
|
|
2914 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2915 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2357 | |
2916 | |
2358 | static void noinline |
2917 | static void noinline |
2359 | infy_add (EV_P_ ev_stat *w) |
2918 | infy_add (EV_P_ ev_stat *w) |
2360 | { |
2919 | { |
2361 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2920 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2362 | |
2921 | |
2363 | if (w->wd < 0) |
2922 | if (w->wd >= 0) |
|
|
2923 | { |
|
|
2924 | struct statfs sfs; |
|
|
2925 | |
|
|
2926 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2927 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2928 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2929 | |
|
|
2930 | if (!fs_2625) |
|
|
2931 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2932 | else if (!statfs (w->path, &sfs) |
|
|
2933 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2934 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2935 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2936 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2937 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2938 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2939 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2940 | else |
|
|
2941 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2364 | { |
2942 | } |
2365 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2943 | else |
|
|
2944 | { |
|
|
2945 | /* can't use inotify, continue to stat */ |
|
|
2946 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2366 | |
2947 | |
2367 | /* monitor some parent directory for speedup hints */ |
2948 | /* if path is not there, monitor some parent directory for speedup hints */ |
2368 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2949 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2369 | /* but an efficiency issue only */ |
2950 | /* but an efficiency issue only */ |
2370 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2951 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2371 | { |
2952 | { |
2372 | char path [4096]; |
2953 | char path [4096]; |
2373 | strcpy (path, w->path); |
2954 | strcpy (path, w->path); |
… | |
… | |
2377 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2958 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2378 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2959 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2379 | |
2960 | |
2380 | char *pend = strrchr (path, '/'); |
2961 | char *pend = strrchr (path, '/'); |
2381 | |
2962 | |
2382 | if (!pend) |
2963 | if (!pend || pend == path) |
2383 | break; /* whoops, no '/', complain to your admin */ |
2964 | break; |
2384 | |
2965 | |
2385 | *pend = 0; |
2966 | *pend = 0; |
2386 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2967 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2387 | } |
2968 | } |
2388 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2969 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2389 | } |
2970 | } |
2390 | } |
2971 | } |
2391 | else |
|
|
2392 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2393 | |
2972 | |
2394 | if (w->wd >= 0) |
2973 | if (w->wd >= 0) |
2395 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2974 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
2975 | |
|
|
2976 | /* now re-arm timer, if required */ |
|
|
2977 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2978 | ev_timer_again (EV_A_ &w->timer); |
|
|
2979 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2396 | } |
2980 | } |
2397 | |
2981 | |
2398 | static void noinline |
2982 | static void noinline |
2399 | infy_del (EV_P_ ev_stat *w) |
2983 | infy_del (EV_P_ ev_stat *w) |
2400 | { |
2984 | { |
… | |
… | |
2403 | |
2987 | |
2404 | if (wd < 0) |
2988 | if (wd < 0) |
2405 | return; |
2989 | return; |
2406 | |
2990 | |
2407 | w->wd = -2; |
2991 | w->wd = -2; |
2408 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
2992 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2409 | wlist_del (&fs_hash [slot].head, (WL)w); |
2993 | wlist_del (&fs_hash [slot].head, (WL)w); |
2410 | |
2994 | |
2411 | /* remove this watcher, if others are watching it, they will rearm */ |
2995 | /* remove this watcher, if others are watching it, they will rearm */ |
2412 | inotify_rm_watch (fs_fd, wd); |
2996 | inotify_rm_watch (fs_fd, wd); |
2413 | } |
2997 | } |
2414 | |
2998 | |
2415 | static void noinline |
2999 | static void noinline |
2416 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3000 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2417 | { |
3001 | { |
2418 | if (slot < 0) |
3002 | if (slot < 0) |
2419 | /* overflow, need to check for all hahs slots */ |
3003 | /* overflow, need to check for all hash slots */ |
2420 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3004 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2421 | infy_wd (EV_A_ slot, wd, ev); |
3005 | infy_wd (EV_A_ slot, wd, ev); |
2422 | else |
3006 | else |
2423 | { |
3007 | { |
2424 | WL w_; |
3008 | WL w_; |
2425 | |
3009 | |
2426 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3010 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2427 | { |
3011 | { |
2428 | ev_stat *w = (ev_stat *)w_; |
3012 | ev_stat *w = (ev_stat *)w_; |
2429 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3013 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2430 | |
3014 | |
2431 | if (w->wd == wd || wd == -1) |
3015 | if (w->wd == wd || wd == -1) |
2432 | { |
3016 | { |
2433 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3017 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2434 | { |
3018 | { |
|
|
3019 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2435 | w->wd = -1; |
3020 | w->wd = -1; |
2436 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2437 | } |
3022 | } |
2438 | |
3023 | |
2439 | stat_timer_cb (EV_A_ &w->timer, 0); |
3024 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2444 | |
3029 | |
2445 | static void |
3030 | static void |
2446 | infy_cb (EV_P_ ev_io *w, int revents) |
3031 | infy_cb (EV_P_ ev_io *w, int revents) |
2447 | { |
3032 | { |
2448 | char buf [EV_INOTIFY_BUFSIZE]; |
3033 | char buf [EV_INOTIFY_BUFSIZE]; |
2449 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2450 | int ofs; |
3034 | int ofs; |
2451 | int len = read (fs_fd, buf, sizeof (buf)); |
3035 | int len = read (fs_fd, buf, sizeof (buf)); |
2452 | |
3036 | |
2453 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3037 | for (ofs = 0; ofs < len; ) |
|
|
3038 | { |
|
|
3039 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2454 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3041 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3042 | } |
2455 | } |
3043 | } |
2456 | |
3044 | |
2457 | void inline_size |
3045 | inline_size unsigned int |
|
|
3046 | ev_linux_version (void) |
|
|
3047 | { |
|
|
3048 | struct utsname buf; |
|
|
3049 | unsigned int v; |
|
|
3050 | int i; |
|
|
3051 | char *p = buf.release; |
|
|
3052 | |
|
|
3053 | if (uname (&buf)) |
|
|
3054 | return 0; |
|
|
3055 | |
|
|
3056 | for (i = 3+1; --i; ) |
|
|
3057 | { |
|
|
3058 | unsigned int c = 0; |
|
|
3059 | |
|
|
3060 | for (;;) |
|
|
3061 | { |
|
|
3062 | if (*p >= '0' && *p <= '9') |
|
|
3063 | c = c * 10 + *p++ - '0'; |
|
|
3064 | else |
|
|
3065 | { |
|
|
3066 | p += *p == '.'; |
|
|
3067 | break; |
|
|
3068 | } |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | v = (v << 8) | c; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | return v; |
|
|
3075 | } |
|
|
3076 | |
|
|
3077 | inline_size void |
|
|
3078 | ev_check_2625 (EV_P) |
|
|
3079 | { |
|
|
3080 | /* kernels < 2.6.25 are borked |
|
|
3081 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3082 | */ |
|
|
3083 | if (ev_linux_version () < 0x020619) |
|
|
3084 | return; |
|
|
3085 | |
|
|
3086 | fs_2625 = 1; |
|
|
3087 | } |
|
|
3088 | |
|
|
3089 | inline_size int |
|
|
3090 | infy_newfd (void) |
|
|
3091 | { |
|
|
3092 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3093 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3094 | if (fd >= 0) |
|
|
3095 | return fd; |
|
|
3096 | #endif |
|
|
3097 | return inotify_init (); |
|
|
3098 | } |
|
|
3099 | |
|
|
3100 | inline_size void |
2458 | infy_init (EV_P) |
3101 | infy_init (EV_P) |
2459 | { |
3102 | { |
2460 | if (fs_fd != -2) |
3103 | if (fs_fd != -2) |
2461 | return; |
3104 | return; |
2462 | |
3105 | |
|
|
3106 | fs_fd = -1; |
|
|
3107 | |
|
|
3108 | ev_check_2625 (EV_A); |
|
|
3109 | |
2463 | fs_fd = inotify_init (); |
3110 | fs_fd = infy_newfd (); |
2464 | |
3111 | |
2465 | if (fs_fd >= 0) |
3112 | if (fs_fd >= 0) |
2466 | { |
3113 | { |
|
|
3114 | fd_intern (fs_fd); |
2467 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3115 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2468 | ev_set_priority (&fs_w, EV_MAXPRI); |
3116 | ev_set_priority (&fs_w, EV_MAXPRI); |
2469 | ev_io_start (EV_A_ &fs_w); |
3117 | ev_io_start (EV_A_ &fs_w); |
|
|
3118 | ev_unref (EV_A); |
2470 | } |
3119 | } |
2471 | } |
3120 | } |
2472 | |
3121 | |
2473 | void inline_size |
3122 | inline_size void |
2474 | infy_fork (EV_P) |
3123 | infy_fork (EV_P) |
2475 | { |
3124 | { |
2476 | int slot; |
3125 | int slot; |
2477 | |
3126 | |
2478 | if (fs_fd < 0) |
3127 | if (fs_fd < 0) |
2479 | return; |
3128 | return; |
2480 | |
3129 | |
|
|
3130 | ev_ref (EV_A); |
|
|
3131 | ev_io_stop (EV_A_ &fs_w); |
2481 | close (fs_fd); |
3132 | close (fs_fd); |
2482 | fs_fd = inotify_init (); |
3133 | fs_fd = infy_newfd (); |
2483 | |
3134 | |
|
|
3135 | if (fs_fd >= 0) |
|
|
3136 | { |
|
|
3137 | fd_intern (fs_fd); |
|
|
3138 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3139 | ev_io_start (EV_A_ &fs_w); |
|
|
3140 | ev_unref (EV_A); |
|
|
3141 | } |
|
|
3142 | |
2484 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3143 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2485 | { |
3144 | { |
2486 | WL w_ = fs_hash [slot].head; |
3145 | WL w_ = fs_hash [slot].head; |
2487 | fs_hash [slot].head = 0; |
3146 | fs_hash [slot].head = 0; |
2488 | |
3147 | |
2489 | while (w_) |
3148 | while (w_) |
… | |
… | |
2494 | w->wd = -1; |
3153 | w->wd = -1; |
2495 | |
3154 | |
2496 | if (fs_fd >= 0) |
3155 | if (fs_fd >= 0) |
2497 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3156 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2498 | else |
3157 | else |
|
|
3158 | { |
|
|
3159 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3160 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2499 | ev_timer_start (EV_A_ &w->timer); |
3161 | ev_timer_again (EV_A_ &w->timer); |
|
|
3162 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3163 | } |
2500 | } |
3164 | } |
2501 | |
|
|
2502 | } |
3165 | } |
2503 | } |
3166 | } |
2504 | |
3167 | |
|
|
3168 | #endif |
|
|
3169 | |
|
|
3170 | #ifdef _WIN32 |
|
|
3171 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3172 | #else |
|
|
3173 | # define EV_LSTAT(p,b) lstat (p, b) |
2505 | #endif |
3174 | #endif |
2506 | |
3175 | |
2507 | void |
3176 | void |
2508 | ev_stat_stat (EV_P_ ev_stat *w) |
3177 | ev_stat_stat (EV_P_ ev_stat *w) |
2509 | { |
3178 | { |
… | |
… | |
2516 | static void noinline |
3185 | static void noinline |
2517 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3186 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2518 | { |
3187 | { |
2519 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3188 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2520 | |
3189 | |
2521 | /* we copy this here each the time so that */ |
3190 | ev_statdata prev = w->attr; |
2522 | /* prev has the old value when the callback gets invoked */ |
|
|
2523 | w->prev = w->attr; |
|
|
2524 | ev_stat_stat (EV_A_ w); |
3191 | ev_stat_stat (EV_A_ w); |
2525 | |
3192 | |
2526 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3193 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2527 | if ( |
3194 | if ( |
2528 | w->prev.st_dev != w->attr.st_dev |
3195 | prev.st_dev != w->attr.st_dev |
2529 | || w->prev.st_ino != w->attr.st_ino |
3196 | || prev.st_ino != w->attr.st_ino |
2530 | || w->prev.st_mode != w->attr.st_mode |
3197 | || prev.st_mode != w->attr.st_mode |
2531 | || w->prev.st_nlink != w->attr.st_nlink |
3198 | || prev.st_nlink != w->attr.st_nlink |
2532 | || w->prev.st_uid != w->attr.st_uid |
3199 | || prev.st_uid != w->attr.st_uid |
2533 | || w->prev.st_gid != w->attr.st_gid |
3200 | || prev.st_gid != w->attr.st_gid |
2534 | || w->prev.st_rdev != w->attr.st_rdev |
3201 | || prev.st_rdev != w->attr.st_rdev |
2535 | || w->prev.st_size != w->attr.st_size |
3202 | || prev.st_size != w->attr.st_size |
2536 | || w->prev.st_atime != w->attr.st_atime |
3203 | || prev.st_atime != w->attr.st_atime |
2537 | || w->prev.st_mtime != w->attr.st_mtime |
3204 | || prev.st_mtime != w->attr.st_mtime |
2538 | || w->prev.st_ctime != w->attr.st_ctime |
3205 | || prev.st_ctime != w->attr.st_ctime |
2539 | ) { |
3206 | ) { |
|
|
3207 | /* we only update w->prev on actual differences */ |
|
|
3208 | /* in case we test more often than invoke the callback, */ |
|
|
3209 | /* to ensure that prev is always different to attr */ |
|
|
3210 | w->prev = prev; |
|
|
3211 | |
2540 | #if EV_USE_INOTIFY |
3212 | #if EV_USE_INOTIFY |
|
|
3213 | if (fs_fd >= 0) |
|
|
3214 | { |
2541 | infy_del (EV_A_ w); |
3215 | infy_del (EV_A_ w); |
2542 | infy_add (EV_A_ w); |
3216 | infy_add (EV_A_ w); |
2543 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3217 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3218 | } |
2544 | #endif |
3219 | #endif |
2545 | |
3220 | |
2546 | ev_feed_event (EV_A_ w, EV_STAT); |
3221 | ev_feed_event (EV_A_ w, EV_STAT); |
2547 | } |
3222 | } |
2548 | } |
3223 | } |
… | |
… | |
2551 | ev_stat_start (EV_P_ ev_stat *w) |
3226 | ev_stat_start (EV_P_ ev_stat *w) |
2552 | { |
3227 | { |
2553 | if (expect_false (ev_is_active (w))) |
3228 | if (expect_false (ev_is_active (w))) |
2554 | return; |
3229 | return; |
2555 | |
3230 | |
2556 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2557 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2558 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2559 | |
|
|
2560 | ev_stat_stat (EV_A_ w); |
3231 | ev_stat_stat (EV_A_ w); |
2561 | |
3232 | |
|
|
3233 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2562 | if (w->interval < MIN_STAT_INTERVAL) |
3234 | w->interval = MIN_STAT_INTERVAL; |
2563 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2564 | |
3235 | |
2565 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3236 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2566 | ev_set_priority (&w->timer, ev_priority (w)); |
3237 | ev_set_priority (&w->timer, ev_priority (w)); |
2567 | |
3238 | |
2568 | #if EV_USE_INOTIFY |
3239 | #if EV_USE_INOTIFY |
2569 | infy_init (EV_A); |
3240 | infy_init (EV_A); |
2570 | |
3241 | |
2571 | if (fs_fd >= 0) |
3242 | if (fs_fd >= 0) |
2572 | infy_add (EV_A_ w); |
3243 | infy_add (EV_A_ w); |
2573 | else |
3244 | else |
2574 | #endif |
3245 | #endif |
|
|
3246 | { |
2575 | ev_timer_start (EV_A_ &w->timer); |
3247 | ev_timer_again (EV_A_ &w->timer); |
|
|
3248 | ev_unref (EV_A); |
|
|
3249 | } |
2576 | |
3250 | |
2577 | ev_start (EV_A_ (W)w, 1); |
3251 | ev_start (EV_A_ (W)w, 1); |
2578 | |
3252 | |
2579 | EV_FREQUENT_CHECK; |
3253 | EV_FREQUENT_CHECK; |
2580 | } |
3254 | } |
… | |
… | |
2589 | EV_FREQUENT_CHECK; |
3263 | EV_FREQUENT_CHECK; |
2590 | |
3264 | |
2591 | #if EV_USE_INOTIFY |
3265 | #if EV_USE_INOTIFY |
2592 | infy_del (EV_A_ w); |
3266 | infy_del (EV_A_ w); |
2593 | #endif |
3267 | #endif |
|
|
3268 | |
|
|
3269 | if (ev_is_active (&w->timer)) |
|
|
3270 | { |
|
|
3271 | ev_ref (EV_A); |
2594 | ev_timer_stop (EV_A_ &w->timer); |
3272 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3273 | } |
2595 | |
3274 | |
2596 | ev_stop (EV_A_ (W)w); |
3275 | ev_stop (EV_A_ (W)w); |
2597 | |
3276 | |
2598 | EV_FREQUENT_CHECK; |
3277 | EV_FREQUENT_CHECK; |
2599 | } |
3278 | } |
… | |
… | |
2644 | |
3323 | |
2645 | EV_FREQUENT_CHECK; |
3324 | EV_FREQUENT_CHECK; |
2646 | } |
3325 | } |
2647 | #endif |
3326 | #endif |
2648 | |
3327 | |
|
|
3328 | #if EV_PREPARE_ENABLE |
2649 | void |
3329 | void |
2650 | ev_prepare_start (EV_P_ ev_prepare *w) |
3330 | ev_prepare_start (EV_P_ ev_prepare *w) |
2651 | { |
3331 | { |
2652 | if (expect_false (ev_is_active (w))) |
3332 | if (expect_false (ev_is_active (w))) |
2653 | return; |
3333 | return; |
… | |
… | |
2679 | |
3359 | |
2680 | ev_stop (EV_A_ (W)w); |
3360 | ev_stop (EV_A_ (W)w); |
2681 | |
3361 | |
2682 | EV_FREQUENT_CHECK; |
3362 | EV_FREQUENT_CHECK; |
2683 | } |
3363 | } |
|
|
3364 | #endif |
2684 | |
3365 | |
|
|
3366 | #if EV_CHECK_ENABLE |
2685 | void |
3367 | void |
2686 | ev_check_start (EV_P_ ev_check *w) |
3368 | ev_check_start (EV_P_ ev_check *w) |
2687 | { |
3369 | { |
2688 | if (expect_false (ev_is_active (w))) |
3370 | if (expect_false (ev_is_active (w))) |
2689 | return; |
3371 | return; |
… | |
… | |
2715 | |
3397 | |
2716 | ev_stop (EV_A_ (W)w); |
3398 | ev_stop (EV_A_ (W)w); |
2717 | |
3399 | |
2718 | EV_FREQUENT_CHECK; |
3400 | EV_FREQUENT_CHECK; |
2719 | } |
3401 | } |
|
|
3402 | #endif |
2720 | |
3403 | |
2721 | #if EV_EMBED_ENABLE |
3404 | #if EV_EMBED_ENABLE |
2722 | void noinline |
3405 | void noinline |
2723 | ev_embed_sweep (EV_P_ ev_embed *w) |
3406 | ev_embed_sweep (EV_P_ ev_embed *w) |
2724 | { |
3407 | { |
… | |
… | |
2740 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3423 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2741 | { |
3424 | { |
2742 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3425 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2743 | |
3426 | |
2744 | { |
3427 | { |
2745 | struct ev_loop *loop = w->other; |
3428 | EV_P = w->other; |
2746 | |
3429 | |
2747 | while (fdchangecnt) |
3430 | while (fdchangecnt) |
2748 | { |
3431 | { |
2749 | fd_reify (EV_A); |
3432 | fd_reify (EV_A); |
2750 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3433 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2751 | } |
3434 | } |
2752 | } |
3435 | } |
2753 | } |
3436 | } |
2754 | |
3437 | |
|
|
3438 | static void |
|
|
3439 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3440 | { |
|
|
3441 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3442 | |
|
|
3443 | ev_embed_stop (EV_A_ w); |
|
|
3444 | |
|
|
3445 | { |
|
|
3446 | EV_P = w->other; |
|
|
3447 | |
|
|
3448 | ev_loop_fork (EV_A); |
|
|
3449 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3450 | } |
|
|
3451 | |
|
|
3452 | ev_embed_start (EV_A_ w); |
|
|
3453 | } |
|
|
3454 | |
2755 | #if 0 |
3455 | #if 0 |
2756 | static void |
3456 | static void |
2757 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3457 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2758 | { |
3458 | { |
2759 | ev_idle_stop (EV_A_ idle); |
3459 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2765 | { |
3465 | { |
2766 | if (expect_false (ev_is_active (w))) |
3466 | if (expect_false (ev_is_active (w))) |
2767 | return; |
3467 | return; |
2768 | |
3468 | |
2769 | { |
3469 | { |
2770 | struct ev_loop *loop = w->other; |
3470 | EV_P = w->other; |
2771 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3471 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2772 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3472 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2773 | } |
3473 | } |
2774 | |
3474 | |
2775 | EV_FREQUENT_CHECK; |
3475 | EV_FREQUENT_CHECK; |
2776 | |
3476 | |
… | |
… | |
2779 | |
3479 | |
2780 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3480 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2781 | ev_set_priority (&w->prepare, EV_MINPRI); |
3481 | ev_set_priority (&w->prepare, EV_MINPRI); |
2782 | ev_prepare_start (EV_A_ &w->prepare); |
3482 | ev_prepare_start (EV_A_ &w->prepare); |
2783 | |
3483 | |
|
|
3484 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3485 | ev_fork_start (EV_A_ &w->fork); |
|
|
3486 | |
2784 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2785 | |
3488 | |
2786 | ev_start (EV_A_ (W)w, 1); |
3489 | ev_start (EV_A_ (W)w, 1); |
2787 | |
3490 | |
2788 | EV_FREQUENT_CHECK; |
3491 | EV_FREQUENT_CHECK; |
… | |
… | |
2795 | if (expect_false (!ev_is_active (w))) |
3498 | if (expect_false (!ev_is_active (w))) |
2796 | return; |
3499 | return; |
2797 | |
3500 | |
2798 | EV_FREQUENT_CHECK; |
3501 | EV_FREQUENT_CHECK; |
2799 | |
3502 | |
2800 | ev_io_stop (EV_A_ &w->io); |
3503 | ev_io_stop (EV_A_ &w->io); |
2801 | ev_prepare_stop (EV_A_ &w->prepare); |
3504 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3505 | ev_fork_stop (EV_A_ &w->fork); |
2802 | |
3506 | |
2803 | ev_stop (EV_A_ (W)w); |
3507 | ev_stop (EV_A_ (W)w); |
2804 | |
3508 | |
2805 | EV_FREQUENT_CHECK; |
3509 | EV_FREQUENT_CHECK; |
2806 | } |
3510 | } |
… | |
… | |
2885 | |
3589 | |
2886 | void |
3590 | void |
2887 | ev_async_send (EV_P_ ev_async *w) |
3591 | ev_async_send (EV_P_ ev_async *w) |
2888 | { |
3592 | { |
2889 | w->sent = 1; |
3593 | w->sent = 1; |
2890 | evpipe_write (EV_A_ &gotasync); |
3594 | evpipe_write (EV_A_ &async_pending); |
2891 | } |
3595 | } |
2892 | #endif |
3596 | #endif |
2893 | |
3597 | |
2894 | /*****************************************************************************/ |
3598 | /*****************************************************************************/ |
2895 | |
3599 | |
… | |
… | |
2905 | once_cb (EV_P_ struct ev_once *once, int revents) |
3609 | once_cb (EV_P_ struct ev_once *once, int revents) |
2906 | { |
3610 | { |
2907 | void (*cb)(int revents, void *arg) = once->cb; |
3611 | void (*cb)(int revents, void *arg) = once->cb; |
2908 | void *arg = once->arg; |
3612 | void *arg = once->arg; |
2909 | |
3613 | |
2910 | ev_io_stop (EV_A_ &once->io); |
3614 | ev_io_stop (EV_A_ &once->io); |
2911 | ev_timer_stop (EV_A_ &once->to); |
3615 | ev_timer_stop (EV_A_ &once->to); |
2912 | ev_free (once); |
3616 | ev_free (once); |
2913 | |
3617 | |
2914 | cb (revents, arg); |
3618 | cb (revents, arg); |
2915 | } |
3619 | } |
2916 | |
3620 | |
2917 | static void |
3621 | static void |
2918 | once_cb_io (EV_P_ ev_io *w, int revents) |
3622 | once_cb_io (EV_P_ ev_io *w, int revents) |
2919 | { |
3623 | { |
2920 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3624 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3625 | |
|
|
3626 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2921 | } |
3627 | } |
2922 | |
3628 | |
2923 | static void |
3629 | static void |
2924 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3630 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2925 | { |
3631 | { |
2926 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3632 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3633 | |
|
|
3634 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2927 | } |
3635 | } |
2928 | |
3636 | |
2929 | void |
3637 | void |
2930 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3638 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2931 | { |
3639 | { |
2932 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3640 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2933 | |
3641 | |
2934 | if (expect_false (!once)) |
3642 | if (expect_false (!once)) |
2935 | { |
3643 | { |
2936 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3644 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2937 | return; |
3645 | return; |
2938 | } |
3646 | } |
2939 | |
3647 | |
2940 | once->cb = cb; |
3648 | once->cb = cb; |
2941 | once->arg = arg; |
3649 | once->arg = arg; |
… | |
… | |
2953 | ev_timer_set (&once->to, timeout, 0.); |
3661 | ev_timer_set (&once->to, timeout, 0.); |
2954 | ev_timer_start (EV_A_ &once->to); |
3662 | ev_timer_start (EV_A_ &once->to); |
2955 | } |
3663 | } |
2956 | } |
3664 | } |
2957 | |
3665 | |
|
|
3666 | /*****************************************************************************/ |
|
|
3667 | |
|
|
3668 | #if EV_WALK_ENABLE |
|
|
3669 | void |
|
|
3670 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3671 | { |
|
|
3672 | int i, j; |
|
|
3673 | ev_watcher_list *wl, *wn; |
|
|
3674 | |
|
|
3675 | if (types & (EV_IO | EV_EMBED)) |
|
|
3676 | for (i = 0; i < anfdmax; ++i) |
|
|
3677 | for (wl = anfds [i].head; wl; ) |
|
|
3678 | { |
|
|
3679 | wn = wl->next; |
|
|
3680 | |
|
|
3681 | #if EV_EMBED_ENABLE |
|
|
3682 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3683 | { |
|
|
3684 | if (types & EV_EMBED) |
|
|
3685 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3686 | } |
|
|
3687 | else |
|
|
3688 | #endif |
|
|
3689 | #if EV_USE_INOTIFY |
|
|
3690 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3691 | ; |
|
|
3692 | else |
|
|
3693 | #endif |
|
|
3694 | if ((ev_io *)wl != &pipe_w) |
|
|
3695 | if (types & EV_IO) |
|
|
3696 | cb (EV_A_ EV_IO, wl); |
|
|
3697 | |
|
|
3698 | wl = wn; |
|
|
3699 | } |
|
|
3700 | |
|
|
3701 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3702 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3703 | #if EV_STAT_ENABLE |
|
|
3704 | /*TODO: timer is not always active*/ |
|
|
3705 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3706 | { |
|
|
3707 | if (types & EV_STAT) |
|
|
3708 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3709 | } |
|
|
3710 | else |
|
|
3711 | #endif |
|
|
3712 | if (types & EV_TIMER) |
|
|
3713 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3714 | |
|
|
3715 | #if EV_PERIODIC_ENABLE |
|
|
3716 | if (types & EV_PERIODIC) |
|
|
3717 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3718 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3719 | #endif |
|
|
3720 | |
|
|
3721 | #if EV_IDLE_ENABLE |
|
|
3722 | if (types & EV_IDLE) |
|
|
3723 | for (j = NUMPRI; i--; ) |
|
|
3724 | for (i = idlecnt [j]; i--; ) |
|
|
3725 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3726 | #endif |
|
|
3727 | |
|
|
3728 | #if EV_FORK_ENABLE |
|
|
3729 | if (types & EV_FORK) |
|
|
3730 | for (i = forkcnt; i--; ) |
|
|
3731 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3732 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3733 | #endif |
|
|
3734 | |
|
|
3735 | #if EV_ASYNC_ENABLE |
|
|
3736 | if (types & EV_ASYNC) |
|
|
3737 | for (i = asynccnt; i--; ) |
|
|
3738 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3739 | #endif |
|
|
3740 | |
|
|
3741 | #if EV_PREPARE_ENABLE |
|
|
3742 | if (types & EV_PREPARE) |
|
|
3743 | for (i = preparecnt; i--; ) |
|
|
3744 | # if EV_EMBED_ENABLE |
|
|
3745 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3746 | # endif |
|
|
3747 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3748 | #endif |
|
|
3749 | |
|
|
3750 | #if EV_CHECK_ENABLE |
|
|
3751 | if (types & EV_CHECK) |
|
|
3752 | for (i = checkcnt; i--; ) |
|
|
3753 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3754 | #endif |
|
|
3755 | |
|
|
3756 | #if EV_SIGNAL_ENABLE |
|
|
3757 | if (types & EV_SIGNAL) |
|
|
3758 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3759 | for (wl = signals [i].head; wl; ) |
|
|
3760 | { |
|
|
3761 | wn = wl->next; |
|
|
3762 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3763 | wl = wn; |
|
|
3764 | } |
|
|
3765 | #endif |
|
|
3766 | |
|
|
3767 | #if EV_CHILD_ENABLE |
|
|
3768 | if (types & EV_CHILD) |
|
|
3769 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3770 | for (wl = childs [i]; wl; ) |
|
|
3771 | { |
|
|
3772 | wn = wl->next; |
|
|
3773 | cb (EV_A_ EV_CHILD, wl); |
|
|
3774 | wl = wn; |
|
|
3775 | } |
|
|
3776 | #endif |
|
|
3777 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3778 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3779 | } |
|
|
3780 | #endif |
|
|
3781 | |
2958 | #if EV_MULTIPLICITY |
3782 | #if EV_MULTIPLICITY |
2959 | #include "ev_wrap.h" |
3783 | #include "ev_wrap.h" |
2960 | #endif |
3784 | #endif |
2961 | |
3785 | |
2962 | #ifdef __cplusplus |
3786 | #ifdef __cplusplus |