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 |
63 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
65 | # endif |
79 | # endif |
66 | # endif |
80 | # endif |
67 | |
81 | |
|
|
82 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
83 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
85 | # endif |
71 | # else |
86 | # else |
|
|
87 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
88 | # define EV_USE_NANOSLEEP 0 |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # ifndef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
94 | # endif |
|
|
95 | # else |
|
|
96 | # undef EV_USE_SELECT |
|
|
97 | # define EV_USE_SELECT 0 |
74 | # endif |
98 | # endif |
75 | |
99 | |
|
|
100 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
101 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
102 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
103 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
104 | # else |
|
|
105 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
106 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
107 | # endif |
91 | |
108 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
109 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
110 | # ifndef EV_USE_EPOLL |
95 | # else |
111 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
112 | # endif |
|
|
113 | # else |
|
|
114 | # undef EV_USE_EPOLL |
|
|
115 | # define EV_USE_EPOLL 0 |
98 | # endif |
116 | # endif |
99 | |
117 | |
|
|
118 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
119 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
120 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
121 | # endif |
|
|
122 | # else |
|
|
123 | # undef EV_USE_KQUEUE |
|
|
124 | # define EV_USE_KQUEUE 0 |
106 | # endif |
125 | # endif |
107 | |
126 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
127 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
128 | # ifndef EV_USE_PORT |
111 | # else |
129 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
130 | # endif |
|
|
131 | # else |
|
|
132 | # undef EV_USE_PORT |
|
|
133 | # define EV_USE_PORT 0 |
114 | # endif |
134 | # endif |
115 | |
135 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
136 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
137 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
138 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
139 | # endif |
|
|
140 | # else |
|
|
141 | # undef EV_USE_INOTIFY |
|
|
142 | # define EV_USE_INOTIFY 0 |
122 | # endif |
143 | # endif |
123 | |
144 | |
|
|
145 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
147 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
148 | # endif |
|
|
149 | # else |
|
|
150 | # undef EV_USE_SIGNALFD |
|
|
151 | # define EV_USE_SIGNALFD 0 |
|
|
152 | # endif |
|
|
153 | |
|
|
154 | # if HAVE_EVENTFD |
|
|
155 | # ifndef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
157 | # endif |
|
|
158 | # else |
|
|
159 | # undef EV_USE_EVENTFD |
|
|
160 | # define EV_USE_EVENTFD 0 |
130 | # endif |
161 | # endif |
131 | |
162 | |
132 | #endif |
163 | #endif |
133 | |
164 | |
134 | #include <math.h> |
165 | #include <math.h> |
135 | #include <stdlib.h> |
166 | #include <stdlib.h> |
|
|
167 | #include <string.h> |
136 | #include <fcntl.h> |
168 | #include <fcntl.h> |
137 | #include <stddef.h> |
169 | #include <stddef.h> |
138 | |
170 | |
139 | #include <stdio.h> |
171 | #include <stdio.h> |
140 | |
172 | |
141 | #include <assert.h> |
173 | #include <assert.h> |
142 | #include <errno.h> |
174 | #include <errno.h> |
143 | #include <sys/types.h> |
175 | #include <sys/types.h> |
144 | #include <time.h> |
176 | #include <time.h> |
|
|
177 | #include <limits.h> |
145 | |
178 | |
146 | #include <signal.h> |
179 | #include <signal.h> |
147 | |
180 | |
148 | #ifdef EV_H |
181 | #ifdef EV_H |
149 | # include EV_H |
182 | # include EV_H |
… | |
… | |
154 | #ifndef _WIN32 |
187 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
188 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
189 | # include <sys/wait.h> |
157 | # include <unistd.h> |
190 | # include <unistd.h> |
158 | #else |
191 | #else |
|
|
192 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
193 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
194 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
197 | # endif |
|
|
198 | # undef EV_AVOID_STDIO |
164 | #endif |
199 | #endif |
|
|
200 | |
|
|
201 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
202 | * a limit of 1024 into their select. Where people have brains, |
|
|
203 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
204 | * ordered to have a vacuum, or they do anything for money. |
|
|
205 | * This might help. Or not. |
|
|
206 | */ |
|
|
207 | #define _DARWIN_UNLIMITED_SELECT 1 |
165 | |
208 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
209 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
210 | |
|
|
211 | /* try to deduce the maximum number of signals on this platform */ |
|
|
212 | #if defined (EV_NSIG) |
|
|
213 | /* use what's provided */ |
|
|
214 | #elif defined (NSIG) |
|
|
215 | # define EV_NSIG (NSIG) |
|
|
216 | #elif defined(_NSIG) |
|
|
217 | # define EV_NSIG (_NSIG) |
|
|
218 | #elif defined (SIGMAX) |
|
|
219 | # define EV_NSIG (SIGMAX+1) |
|
|
220 | #elif defined (SIG_MAX) |
|
|
221 | # define EV_NSIG (SIG_MAX+1) |
|
|
222 | #elif defined (_SIG_MAX) |
|
|
223 | # define EV_NSIG (_SIG_MAX+1) |
|
|
224 | #elif defined (MAXSIG) |
|
|
225 | # define EV_NSIG (MAXSIG+1) |
|
|
226 | #elif defined (MAX_SIG) |
|
|
227 | # define EV_NSIG (MAX_SIG+1) |
|
|
228 | #elif defined (SIGARRAYSIZE) |
|
|
229 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
230 | #elif defined (_sys_nsig) |
|
|
231 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
232 | #else |
|
|
233 | # error "unable to find value for NSIG, please report" |
|
|
234 | /* to make it compile regardless, just remove the above line, */ |
|
|
235 | /* but consider reporting it, too! :) */ |
|
|
236 | # define EV_NSIG 65 |
|
|
237 | #endif |
|
|
238 | |
|
|
239 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
240 | # if __linux && __GLIBC__ >= 2 |
|
|
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
242 | # else |
|
|
243 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
244 | # endif |
|
|
245 | #endif |
|
|
246 | |
168 | #ifndef EV_USE_MONOTONIC |
247 | #ifndef EV_USE_MONOTONIC |
|
|
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
250 | # else |
169 | # define EV_USE_MONOTONIC 0 |
251 | # define EV_USE_MONOTONIC 0 |
|
|
252 | # endif |
170 | #endif |
253 | #endif |
171 | |
254 | |
172 | #ifndef EV_USE_REALTIME |
255 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
256 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
257 | #endif |
175 | |
258 | |
176 | #ifndef EV_USE_NANOSLEEP |
259 | #ifndef EV_USE_NANOSLEEP |
|
|
260 | # if _POSIX_C_SOURCE >= 199309L |
|
|
261 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
262 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
263 | # define EV_USE_NANOSLEEP 0 |
|
|
264 | # endif |
178 | #endif |
265 | #endif |
179 | |
266 | |
180 | #ifndef EV_USE_SELECT |
267 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
268 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
269 | #endif |
183 | |
270 | |
184 | #ifndef EV_USE_POLL |
271 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
272 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
273 | # define EV_USE_POLL 0 |
187 | # else |
274 | # else |
188 | # define EV_USE_POLL 1 |
275 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
276 | # endif |
190 | #endif |
277 | #endif |
191 | |
278 | |
192 | #ifndef EV_USE_EPOLL |
279 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
281 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
282 | # else |
196 | # define EV_USE_EPOLL 0 |
283 | # define EV_USE_EPOLL 0 |
197 | # endif |
284 | # endif |
198 | #endif |
285 | #endif |
199 | |
286 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
292 | # define EV_USE_PORT 0 |
206 | #endif |
293 | #endif |
207 | |
294 | |
208 | #ifndef EV_USE_INOTIFY |
295 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
297 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
298 | # else |
212 | # define EV_USE_INOTIFY 0 |
299 | # define EV_USE_INOTIFY 0 |
213 | # endif |
300 | # endif |
214 | #endif |
301 | #endif |
215 | |
302 | |
216 | #ifndef EV_PID_HASHSIZE |
303 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
304 | # 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 |
305 | #endif |
223 | |
306 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
307 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
308 | # 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 |
309 | #endif |
231 | |
310 | |
232 | #ifndef EV_USE_EVENTFD |
311 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
313 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
314 | # else |
236 | # define EV_USE_EVENTFD 0 |
315 | # define EV_USE_EVENTFD 0 |
|
|
316 | # endif |
|
|
317 | #endif |
|
|
318 | |
|
|
319 | #ifndef EV_USE_SIGNALFD |
|
|
320 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
321 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
322 | # else |
|
|
323 | # define EV_USE_SIGNALFD 0 |
237 | # endif |
324 | # endif |
238 | #endif |
325 | #endif |
239 | |
326 | |
240 | #if 0 /* debugging */ |
327 | #if 0 /* debugging */ |
241 | # define EV_VERIFY 3 |
328 | # define EV_VERIFY 3 |
242 | # define EV_USE_4HEAP 1 |
329 | # define EV_USE_4HEAP 1 |
243 | # define EV_HEAP_CACHE_AT 1 |
330 | # define EV_HEAP_CACHE_AT 1 |
244 | #endif |
331 | #endif |
245 | |
332 | |
246 | #ifndef EV_VERIFY |
333 | #ifndef EV_VERIFY |
247 | # define EV_VERIFY !EV_MINIMAL |
334 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
248 | #endif |
335 | #endif |
249 | |
336 | |
250 | #ifndef EV_USE_4HEAP |
337 | #ifndef EV_USE_4HEAP |
251 | # define EV_USE_4HEAP !EV_MINIMAL |
338 | # define EV_USE_4HEAP EV_FEATURE_DATA |
252 | #endif |
339 | #endif |
253 | |
340 | |
254 | #ifndef EV_HEAP_CACHE_AT |
341 | #ifndef EV_HEAP_CACHE_AT |
255 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
342 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
343 | #endif |
|
|
344 | |
|
|
345 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
346 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
347 | #if EV_USE_CLOCK_SYSCALL |
|
|
348 | # include <syscall.h> |
|
|
349 | # ifdef SYS_clock_gettime |
|
|
350 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
351 | # undef EV_USE_MONOTONIC |
|
|
352 | # define EV_USE_MONOTONIC 1 |
|
|
353 | # else |
|
|
354 | # undef EV_USE_CLOCK_SYSCALL |
|
|
355 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
356 | # endif |
256 | #endif |
357 | #endif |
257 | |
358 | |
258 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
359 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
360 | |
|
|
361 | #ifdef _AIX |
|
|
362 | /* AIX has a completely broken poll.h header */ |
|
|
363 | # undef EV_USE_POLL |
|
|
364 | # define EV_USE_POLL 0 |
|
|
365 | #endif |
259 | |
366 | |
260 | #ifndef CLOCK_MONOTONIC |
367 | #ifndef CLOCK_MONOTONIC |
261 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
262 | # define EV_USE_MONOTONIC 0 |
369 | # define EV_USE_MONOTONIC 0 |
263 | #endif |
370 | #endif |
… | |
… | |
277 | # include <sys/select.h> |
384 | # include <sys/select.h> |
278 | # endif |
385 | # endif |
279 | #endif |
386 | #endif |
280 | |
387 | |
281 | #if EV_USE_INOTIFY |
388 | #if EV_USE_INOTIFY |
|
|
389 | # include <sys/utsname.h> |
|
|
390 | # include <sys/statfs.h> |
282 | # include <sys/inotify.h> |
391 | # include <sys/inotify.h> |
|
|
392 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
393 | # ifndef IN_DONT_FOLLOW |
|
|
394 | # undef EV_USE_INOTIFY |
|
|
395 | # define EV_USE_INOTIFY 0 |
|
|
396 | # endif |
283 | #endif |
397 | #endif |
284 | |
398 | |
285 | #if EV_SELECT_IS_WINSOCKET |
399 | #if EV_SELECT_IS_WINSOCKET |
286 | # include <winsock.h> |
400 | # include <winsock.h> |
287 | #endif |
401 | #endif |
288 | |
402 | |
289 | #if EV_USE_EVENTFD |
403 | #if EV_USE_EVENTFD |
290 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
404 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
291 | # include <stdint.h> |
405 | # include <stdint.h> |
|
|
406 | # ifndef EFD_NONBLOCK |
|
|
407 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
408 | # endif |
|
|
409 | # ifndef EFD_CLOEXEC |
|
|
410 | # ifdef O_CLOEXEC |
|
|
411 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
412 | # else |
|
|
413 | # define EFD_CLOEXEC 02000000 |
|
|
414 | # endif |
|
|
415 | # endif |
292 | # ifdef __cplusplus |
416 | # ifdef __cplusplus |
293 | extern "C" { |
417 | extern "C" { |
294 | # endif |
418 | # endif |
295 | int eventfd (unsigned int initval, int flags); |
419 | int (eventfd) (unsigned int initval, int flags); |
296 | # ifdef __cplusplus |
420 | # ifdef __cplusplus |
297 | } |
421 | } |
298 | # endif |
422 | # endif |
299 | #endif |
423 | #endif |
300 | |
424 | |
|
|
425 | #if EV_USE_SIGNALFD |
|
|
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
427 | # include <stdint.h> |
|
|
428 | # ifndef SFD_NONBLOCK |
|
|
429 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
430 | # endif |
|
|
431 | # ifndef SFD_CLOEXEC |
|
|
432 | # ifdef O_CLOEXEC |
|
|
433 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
434 | # else |
|
|
435 | # define SFD_CLOEXEC 02000000 |
|
|
436 | # endif |
|
|
437 | # endif |
|
|
438 | # ifdef __cplusplus |
|
|
439 | extern "C" { |
|
|
440 | # endif |
|
|
441 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
442 | |
|
|
443 | struct signalfd_siginfo |
|
|
444 | { |
|
|
445 | uint32_t ssi_signo; |
|
|
446 | char pad[128 - sizeof (uint32_t)]; |
|
|
447 | }; |
|
|
448 | # ifdef __cplusplus |
|
|
449 | } |
|
|
450 | # endif |
|
|
451 | #endif |
|
|
452 | |
|
|
453 | |
301 | /**/ |
454 | /**/ |
302 | |
455 | |
303 | #if EV_VERIFY >= 3 |
456 | #if EV_VERIFY >= 3 |
304 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
305 | #else |
458 | #else |
306 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
307 | #endif |
460 | #endif |
308 | |
461 | |
309 | /* |
462 | /* |
… | |
… | |
316 | */ |
469 | */ |
317 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
470 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
318 | |
471 | |
319 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
320 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
321 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
322 | |
474 | |
323 | #if __GNUC__ >= 4 |
475 | #if __GNUC__ >= 4 |
324 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
476 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
325 | # define noinline __attribute__ ((noinline)) |
477 | # define noinline __attribute__ ((noinline)) |
326 | #else |
478 | #else |
… | |
… | |
333 | |
485 | |
334 | #define expect_false(expr) expect ((expr) != 0, 0) |
486 | #define expect_false(expr) expect ((expr) != 0, 0) |
335 | #define expect_true(expr) expect ((expr) != 0, 1) |
487 | #define expect_true(expr) expect ((expr) != 0, 1) |
336 | #define inline_size static inline |
488 | #define inline_size static inline |
337 | |
489 | |
338 | #if EV_MINIMAL |
490 | #if EV_FEATURE_CODE |
|
|
491 | # define inline_speed static inline |
|
|
492 | #else |
339 | # define inline_speed static noinline |
493 | # define inline_speed static noinline |
|
|
494 | #endif |
|
|
495 | |
|
|
496 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
497 | |
|
|
498 | #if EV_MINPRI == EV_MAXPRI |
|
|
499 | # define ABSPRI(w) (((W)w), 0) |
340 | #else |
500 | #else |
341 | # define inline_speed static inline |
|
|
342 | #endif |
|
|
343 | |
|
|
344 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
345 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
501 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
502 | #endif |
346 | |
503 | |
347 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
504 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
348 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
505 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
349 | |
506 | |
350 | typedef ev_watcher *W; |
507 | typedef ev_watcher *W; |
… | |
… | |
352 | typedef ev_watcher_time *WT; |
509 | typedef ev_watcher_time *WT; |
353 | |
510 | |
354 | #define ev_active(w) ((W)(w))->active |
511 | #define ev_active(w) ((W)(w))->active |
355 | #define ev_at(w) ((WT)(w))->at |
512 | #define ev_at(w) ((WT)(w))->at |
356 | |
513 | |
|
|
514 | #if EV_USE_REALTIME |
|
|
515 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
516 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
517 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
518 | #endif |
|
|
519 | |
357 | #if EV_USE_MONOTONIC |
520 | #if EV_USE_MONOTONIC |
358 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
359 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
360 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
521 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
522 | #endif |
|
|
523 | |
|
|
524 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
525 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
526 | #endif |
|
|
527 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
528 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
529 | #endif |
|
|
530 | #ifndef EV_WIN32_CLOSE_FD |
|
|
531 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
361 | #endif |
532 | #endif |
362 | |
533 | |
363 | #ifdef _WIN32 |
534 | #ifdef _WIN32 |
364 | # include "ev_win32.c" |
535 | # include "ev_win32.c" |
365 | #endif |
536 | #endif |
366 | |
537 | |
367 | /*****************************************************************************/ |
538 | /*****************************************************************************/ |
368 | |
539 | |
|
|
540 | #if EV_AVOID_STDIO |
|
|
541 | static void noinline |
|
|
542 | ev_printerr (const char *msg) |
|
|
543 | { |
|
|
544 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
545 | } |
|
|
546 | #endif |
|
|
547 | |
369 | static void (*syserr_cb)(const char *msg); |
548 | static void (*syserr_cb)(const char *msg); |
370 | |
549 | |
371 | void |
550 | void |
372 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
551 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
373 | { |
552 | { |
374 | syserr_cb = cb; |
553 | syserr_cb = cb; |
375 | } |
554 | } |
376 | |
555 | |
377 | static void noinline |
556 | static void noinline |
378 | syserr (const char *msg) |
557 | ev_syserr (const char *msg) |
379 | { |
558 | { |
380 | if (!msg) |
559 | if (!msg) |
381 | msg = "(libev) system error"; |
560 | msg = "(libev) system error"; |
382 | |
561 | |
383 | if (syserr_cb) |
562 | if (syserr_cb) |
384 | syserr_cb (msg); |
563 | syserr_cb (msg); |
385 | else |
564 | else |
386 | { |
565 | { |
|
|
566 | #if EV_AVOID_STDIO |
|
|
567 | const char *err = strerror (errno); |
|
|
568 | |
|
|
569 | ev_printerr (msg); |
|
|
570 | ev_printerr (": "); |
|
|
571 | ev_printerr (err); |
|
|
572 | ev_printerr ("\n"); |
|
|
573 | #else |
387 | perror (msg); |
574 | perror (msg); |
|
|
575 | #endif |
388 | abort (); |
576 | abort (); |
389 | } |
577 | } |
390 | } |
578 | } |
391 | |
579 | |
392 | static void * |
580 | static void * |
393 | ev_realloc_emul (void *ptr, long size) |
581 | ev_realloc_emul (void *ptr, long size) |
394 | { |
582 | { |
|
|
583 | #if __GLIBC__ |
|
|
584 | return realloc (ptr, size); |
|
|
585 | #else |
395 | /* some systems, notably openbsd and darwin, fail to properly |
586 | /* some systems, notably openbsd and darwin, fail to properly |
396 | * implement realloc (x, 0) (as required by both ansi c-98 and |
587 | * implement realloc (x, 0) (as required by both ansi c-89 and |
397 | * the single unix specification, so work around them here. |
588 | * the single unix specification, so work around them here. |
398 | */ |
589 | */ |
399 | |
590 | |
400 | if (size) |
591 | if (size) |
401 | return realloc (ptr, size); |
592 | return realloc (ptr, size); |
402 | |
593 | |
403 | free (ptr); |
594 | free (ptr); |
404 | return 0; |
595 | return 0; |
|
|
596 | #endif |
405 | } |
597 | } |
406 | |
598 | |
407 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
599 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
408 | |
600 | |
409 | void |
601 | void |
… | |
… | |
417 | { |
609 | { |
418 | ptr = alloc (ptr, size); |
610 | ptr = alloc (ptr, size); |
419 | |
611 | |
420 | if (!ptr && size) |
612 | if (!ptr && size) |
421 | { |
613 | { |
|
|
614 | #if EV_AVOID_STDIO |
|
|
615 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
616 | #else |
422 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
617 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
618 | #endif |
423 | abort (); |
619 | abort (); |
424 | } |
620 | } |
425 | |
621 | |
426 | return ptr; |
622 | return ptr; |
427 | } |
623 | } |
… | |
… | |
429 | #define ev_malloc(size) ev_realloc (0, (size)) |
625 | #define ev_malloc(size) ev_realloc (0, (size)) |
430 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
626 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
431 | |
627 | |
432 | /*****************************************************************************/ |
628 | /*****************************************************************************/ |
433 | |
629 | |
|
|
630 | /* set in reify when reification needed */ |
|
|
631 | #define EV_ANFD_REIFY 1 |
|
|
632 | |
|
|
633 | /* file descriptor info structure */ |
434 | typedef struct |
634 | typedef struct |
435 | { |
635 | { |
436 | WL head; |
636 | WL head; |
437 | unsigned char events; |
637 | unsigned char events; /* the events watched for */ |
|
|
638 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
639 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
438 | unsigned char reify; |
640 | unsigned char unused; |
|
|
641 | #if EV_USE_EPOLL |
|
|
642 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
643 | #endif |
439 | #if EV_SELECT_IS_WINSOCKET |
644 | #if EV_SELECT_IS_WINSOCKET |
440 | SOCKET handle; |
645 | SOCKET handle; |
441 | #endif |
646 | #endif |
442 | } ANFD; |
647 | } ANFD; |
443 | |
648 | |
|
|
649 | /* stores the pending event set for a given watcher */ |
444 | typedef struct |
650 | typedef struct |
445 | { |
651 | { |
446 | W w; |
652 | W w; |
447 | int events; |
653 | int events; /* the pending event set for the given watcher */ |
448 | } ANPENDING; |
654 | } ANPENDING; |
449 | |
655 | |
450 | #if EV_USE_INOTIFY |
656 | #if EV_USE_INOTIFY |
451 | /* hash table entry per inotify-id */ |
657 | /* hash table entry per inotify-id */ |
452 | typedef struct |
658 | typedef struct |
… | |
… | |
455 | } ANFS; |
661 | } ANFS; |
456 | #endif |
662 | #endif |
457 | |
663 | |
458 | /* Heap Entry */ |
664 | /* Heap Entry */ |
459 | #if EV_HEAP_CACHE_AT |
665 | #if EV_HEAP_CACHE_AT |
|
|
666 | /* a heap element */ |
460 | typedef struct { |
667 | typedef struct { |
461 | ev_tstamp at; |
668 | ev_tstamp at; |
462 | WT w; |
669 | WT w; |
463 | } ANHE; |
670 | } ANHE; |
464 | |
671 | |
465 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
672 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
466 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
673 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
467 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
674 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
468 | #else |
675 | #else |
|
|
676 | /* a heap element */ |
469 | typedef WT ANHE; |
677 | typedef WT ANHE; |
470 | |
678 | |
471 | #define ANHE_w(he) (he) |
679 | #define ANHE_w(he) (he) |
472 | #define ANHE_at(he) (he)->at |
680 | #define ANHE_at(he) (he)->at |
473 | #define ANHE_at_cache(he) |
681 | #define ANHE_at_cache(he) |
… | |
… | |
497 | |
705 | |
498 | static int ev_default_loop_ptr; |
706 | static int ev_default_loop_ptr; |
499 | |
707 | |
500 | #endif |
708 | #endif |
501 | |
709 | |
|
|
710 | #if EV_FEATURE_API |
|
|
711 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
712 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
713 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
714 | #else |
|
|
715 | # define EV_RELEASE_CB (void)0 |
|
|
716 | # define EV_ACQUIRE_CB (void)0 |
|
|
717 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | #define EVUNLOOP_RECURSE 0x80 |
|
|
721 | |
502 | /*****************************************************************************/ |
722 | /*****************************************************************************/ |
503 | |
723 | |
|
|
724 | #ifndef EV_HAVE_EV_TIME |
504 | ev_tstamp |
725 | ev_tstamp |
505 | ev_time (void) |
726 | ev_time (void) |
506 | { |
727 | { |
507 | #if EV_USE_REALTIME |
728 | #if EV_USE_REALTIME |
|
|
729 | if (expect_true (have_realtime)) |
|
|
730 | { |
508 | struct timespec ts; |
731 | struct timespec ts; |
509 | clock_gettime (CLOCK_REALTIME, &ts); |
732 | clock_gettime (CLOCK_REALTIME, &ts); |
510 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
733 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
511 | #else |
734 | } |
|
|
735 | #endif |
|
|
736 | |
512 | struct timeval tv; |
737 | struct timeval tv; |
513 | gettimeofday (&tv, 0); |
738 | gettimeofday (&tv, 0); |
514 | return tv.tv_sec + tv.tv_usec * 1e-6; |
739 | return tv.tv_sec + tv.tv_usec * 1e-6; |
515 | #endif |
|
|
516 | } |
740 | } |
|
|
741 | #endif |
517 | |
742 | |
518 | ev_tstamp inline_size |
743 | inline_size ev_tstamp |
519 | get_clock (void) |
744 | get_clock (void) |
520 | { |
745 | { |
521 | #if EV_USE_MONOTONIC |
746 | #if EV_USE_MONOTONIC |
522 | if (expect_true (have_monotonic)) |
747 | if (expect_true (have_monotonic)) |
523 | { |
748 | { |
… | |
… | |
556 | struct timeval tv; |
781 | struct timeval tv; |
557 | |
782 | |
558 | tv.tv_sec = (time_t)delay; |
783 | tv.tv_sec = (time_t)delay; |
559 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
784 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
560 | |
785 | |
|
|
786 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
787 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
788 | /* by older ones */ |
561 | select (0, 0, 0, 0, &tv); |
789 | select (0, 0, 0, 0, &tv); |
562 | #endif |
790 | #endif |
563 | } |
791 | } |
564 | } |
792 | } |
565 | |
793 | |
566 | /*****************************************************************************/ |
794 | /*****************************************************************************/ |
567 | |
795 | |
568 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
796 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
569 | |
797 | |
570 | int inline_size |
798 | /* find a suitable new size for the given array, */ |
|
|
799 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
800 | inline_size int |
571 | array_nextsize (int elem, int cur, int cnt) |
801 | array_nextsize (int elem, int cur, int cnt) |
572 | { |
802 | { |
573 | int ncur = cur + 1; |
803 | int ncur = cur + 1; |
574 | |
804 | |
575 | do |
805 | do |
… | |
… | |
592 | array_realloc (int elem, void *base, int *cur, int cnt) |
822 | array_realloc (int elem, void *base, int *cur, int cnt) |
593 | { |
823 | { |
594 | *cur = array_nextsize (elem, *cur, cnt); |
824 | *cur = array_nextsize (elem, *cur, cnt); |
595 | return ev_realloc (base, elem * *cur); |
825 | return ev_realloc (base, elem * *cur); |
596 | } |
826 | } |
|
|
827 | |
|
|
828 | #define array_init_zero(base,count) \ |
|
|
829 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
597 | |
830 | |
598 | #define array_needsize(type,base,cur,cnt,init) \ |
831 | #define array_needsize(type,base,cur,cnt,init) \ |
599 | if (expect_false ((cnt) > (cur))) \ |
832 | if (expect_false ((cnt) > (cur))) \ |
600 | { \ |
833 | { \ |
601 | int ocur_ = (cur); \ |
834 | int ocur_ = (cur); \ |
… | |
… | |
613 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
846 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
614 | } |
847 | } |
615 | #endif |
848 | #endif |
616 | |
849 | |
617 | #define array_free(stem, idx) \ |
850 | #define array_free(stem, idx) \ |
618 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
851 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
619 | |
852 | |
620 | /*****************************************************************************/ |
853 | /*****************************************************************************/ |
|
|
854 | |
|
|
855 | /* dummy callback for pending events */ |
|
|
856 | static void noinline |
|
|
857 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
858 | { |
|
|
859 | } |
621 | |
860 | |
622 | void noinline |
861 | void noinline |
623 | ev_feed_event (EV_P_ void *w, int revents) |
862 | ev_feed_event (EV_P_ void *w, int revents) |
624 | { |
863 | { |
625 | W w_ = (W)w; |
864 | W w_ = (W)w; |
… | |
… | |
634 | pendings [pri][w_->pending - 1].w = w_; |
873 | pendings [pri][w_->pending - 1].w = w_; |
635 | pendings [pri][w_->pending - 1].events = revents; |
874 | pendings [pri][w_->pending - 1].events = revents; |
636 | } |
875 | } |
637 | } |
876 | } |
638 | |
877 | |
639 | void inline_speed |
878 | inline_speed void |
|
|
879 | feed_reverse (EV_P_ W w) |
|
|
880 | { |
|
|
881 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
882 | rfeeds [rfeedcnt++] = w; |
|
|
883 | } |
|
|
884 | |
|
|
885 | inline_size void |
|
|
886 | feed_reverse_done (EV_P_ int revents) |
|
|
887 | { |
|
|
888 | do |
|
|
889 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
890 | while (rfeedcnt); |
|
|
891 | } |
|
|
892 | |
|
|
893 | inline_speed void |
640 | queue_events (EV_P_ W *events, int eventcnt, int type) |
894 | queue_events (EV_P_ W *events, int eventcnt, int type) |
641 | { |
895 | { |
642 | int i; |
896 | int i; |
643 | |
897 | |
644 | for (i = 0; i < eventcnt; ++i) |
898 | for (i = 0; i < eventcnt; ++i) |
645 | ev_feed_event (EV_A_ events [i], type); |
899 | ev_feed_event (EV_A_ events [i], type); |
646 | } |
900 | } |
647 | |
901 | |
648 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
649 | |
903 | |
650 | void inline_size |
904 | inline_speed void |
651 | anfds_init (ANFD *base, int count) |
|
|
652 | { |
|
|
653 | while (count--) |
|
|
654 | { |
|
|
655 | base->head = 0; |
|
|
656 | base->events = EV_NONE; |
|
|
657 | base->reify = 0; |
|
|
658 | |
|
|
659 | ++base; |
|
|
660 | } |
|
|
661 | } |
|
|
662 | |
|
|
663 | void inline_speed |
|
|
664 | fd_event (EV_P_ int fd, int revents) |
905 | fd_event_nocheck (EV_P_ int fd, int revents) |
665 | { |
906 | { |
666 | ANFD *anfd = anfds + fd; |
907 | ANFD *anfd = anfds + fd; |
667 | ev_io *w; |
908 | ev_io *w; |
668 | |
909 | |
669 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
910 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
673 | if (ev) |
914 | if (ev) |
674 | ev_feed_event (EV_A_ (W)w, ev); |
915 | ev_feed_event (EV_A_ (W)w, ev); |
675 | } |
916 | } |
676 | } |
917 | } |
677 | |
918 | |
|
|
919 | /* do not submit kernel events for fds that have reify set */ |
|
|
920 | /* because that means they changed while we were polling for new events */ |
|
|
921 | inline_speed void |
|
|
922 | fd_event (EV_P_ int fd, int revents) |
|
|
923 | { |
|
|
924 | ANFD *anfd = anfds + fd; |
|
|
925 | |
|
|
926 | if (expect_true (!anfd->reify)) |
|
|
927 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
928 | } |
|
|
929 | |
678 | void |
930 | void |
679 | ev_feed_fd_event (EV_P_ int fd, int revents) |
931 | ev_feed_fd_event (EV_P_ int fd, int revents) |
680 | { |
932 | { |
681 | if (fd >= 0 && fd < anfdmax) |
933 | if (fd >= 0 && fd < anfdmax) |
682 | fd_event (EV_A_ fd, revents); |
934 | fd_event_nocheck (EV_A_ fd, revents); |
683 | } |
935 | } |
684 | |
936 | |
685 | void inline_size |
937 | /* make sure the external fd watch events are in-sync */ |
|
|
938 | /* with the kernel/libev internal state */ |
|
|
939 | inline_size void |
686 | fd_reify (EV_P) |
940 | fd_reify (EV_P) |
687 | { |
941 | { |
688 | int i; |
942 | int i; |
689 | |
943 | |
690 | for (i = 0; i < fdchangecnt; ++i) |
944 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
699 | events |= (unsigned char)w->events; |
953 | events |= (unsigned char)w->events; |
700 | |
954 | |
701 | #if EV_SELECT_IS_WINSOCKET |
955 | #if EV_SELECT_IS_WINSOCKET |
702 | if (events) |
956 | if (events) |
703 | { |
957 | { |
704 | unsigned long argp; |
958 | unsigned long arg; |
705 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
706 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
959 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
707 | #else |
|
|
708 | anfd->handle = _get_osfhandle (fd); |
|
|
709 | #endif |
|
|
710 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
960 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
711 | } |
961 | } |
712 | #endif |
962 | #endif |
713 | |
963 | |
714 | { |
964 | { |
715 | unsigned char o_events = anfd->events; |
965 | unsigned char o_events = anfd->events; |
716 | unsigned char o_reify = anfd->reify; |
966 | unsigned char o_reify = anfd->reify; |
717 | |
967 | |
718 | anfd->reify = 0; |
968 | anfd->reify = 0; |
719 | anfd->events = events; |
969 | anfd->events = events; |
720 | |
970 | |
721 | if (o_events != events || o_reify & EV_IOFDSET) |
971 | if (o_events != events || o_reify & EV__IOFDSET) |
722 | backend_modify (EV_A_ fd, o_events, events); |
972 | backend_modify (EV_A_ fd, o_events, events); |
723 | } |
973 | } |
724 | } |
974 | } |
725 | |
975 | |
726 | fdchangecnt = 0; |
976 | fdchangecnt = 0; |
727 | } |
977 | } |
728 | |
978 | |
729 | void inline_size |
979 | /* something about the given fd changed */ |
|
|
980 | inline_size void |
730 | fd_change (EV_P_ int fd, int flags) |
981 | fd_change (EV_P_ int fd, int flags) |
731 | { |
982 | { |
732 | unsigned char reify = anfds [fd].reify; |
983 | unsigned char reify = anfds [fd].reify; |
733 | anfds [fd].reify |= flags; |
984 | anfds [fd].reify |= flags; |
734 | |
985 | |
… | |
… | |
738 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
989 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
739 | fdchanges [fdchangecnt - 1] = fd; |
990 | fdchanges [fdchangecnt - 1] = fd; |
740 | } |
991 | } |
741 | } |
992 | } |
742 | |
993 | |
743 | void inline_speed |
994 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
995 | inline_speed void |
744 | fd_kill (EV_P_ int fd) |
996 | fd_kill (EV_P_ int fd) |
745 | { |
997 | { |
746 | ev_io *w; |
998 | ev_io *w; |
747 | |
999 | |
748 | while ((w = (ev_io *)anfds [fd].head)) |
1000 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
750 | ev_io_stop (EV_A_ w); |
1002 | ev_io_stop (EV_A_ w); |
751 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1003 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
752 | } |
1004 | } |
753 | } |
1005 | } |
754 | |
1006 | |
755 | int inline_size |
1007 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1008 | inline_size int |
756 | fd_valid (int fd) |
1009 | fd_valid (int fd) |
757 | { |
1010 | { |
758 | #ifdef _WIN32 |
1011 | #ifdef _WIN32 |
759 | return _get_osfhandle (fd) != -1; |
1012 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
760 | #else |
1013 | #else |
761 | return fcntl (fd, F_GETFD) != -1; |
1014 | return fcntl (fd, F_GETFD) != -1; |
762 | #endif |
1015 | #endif |
763 | } |
1016 | } |
764 | |
1017 | |
… | |
… | |
768 | { |
1021 | { |
769 | int fd; |
1022 | int fd; |
770 | |
1023 | |
771 | for (fd = 0; fd < anfdmax; ++fd) |
1024 | for (fd = 0; fd < anfdmax; ++fd) |
772 | if (anfds [fd].events) |
1025 | if (anfds [fd].events) |
773 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1026 | if (!fd_valid (fd) && errno == EBADF) |
774 | fd_kill (EV_A_ fd); |
1027 | fd_kill (EV_A_ fd); |
775 | } |
1028 | } |
776 | |
1029 | |
777 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1030 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
778 | static void noinline |
1031 | static void noinline |
… | |
… | |
782 | |
1035 | |
783 | for (fd = anfdmax; fd--; ) |
1036 | for (fd = anfdmax; fd--; ) |
784 | if (anfds [fd].events) |
1037 | if (anfds [fd].events) |
785 | { |
1038 | { |
786 | fd_kill (EV_A_ fd); |
1039 | fd_kill (EV_A_ fd); |
787 | return; |
1040 | break; |
788 | } |
1041 | } |
789 | } |
1042 | } |
790 | |
1043 | |
791 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1044 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
792 | static void noinline |
1045 | static void noinline |
… | |
… | |
796 | |
1049 | |
797 | for (fd = 0; fd < anfdmax; ++fd) |
1050 | for (fd = 0; fd < anfdmax; ++fd) |
798 | if (anfds [fd].events) |
1051 | if (anfds [fd].events) |
799 | { |
1052 | { |
800 | anfds [fd].events = 0; |
1053 | anfds [fd].events = 0; |
|
|
1054 | anfds [fd].emask = 0; |
801 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1055 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
802 | } |
1056 | } |
803 | } |
1057 | } |
804 | |
1058 | |
|
|
1059 | /* used to prepare libev internal fd's */ |
|
|
1060 | /* this is not fork-safe */ |
|
|
1061 | inline_speed void |
|
|
1062 | fd_intern (int fd) |
|
|
1063 | { |
|
|
1064 | #ifdef _WIN32 |
|
|
1065 | unsigned long arg = 1; |
|
|
1066 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1067 | #else |
|
|
1068 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1069 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1070 | #endif |
|
|
1071 | } |
|
|
1072 | |
805 | /*****************************************************************************/ |
1073 | /*****************************************************************************/ |
806 | |
1074 | |
807 | /* |
1075 | /* |
808 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1076 | * the heap functions want a real array index. array index 0 is guaranteed to not |
809 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1077 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
810 | * the branching factor of the d-tree. |
1078 | * the branching factor of the d-tree. |
811 | */ |
1079 | */ |
812 | |
1080 | |
813 | /* |
1081 | /* |
… | |
… | |
822 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1090 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
823 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1091 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
824 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1092 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
825 | |
1093 | |
826 | /* away from the root */ |
1094 | /* away from the root */ |
827 | void inline_speed |
1095 | inline_speed void |
828 | downheap (ANHE *heap, int N, int k) |
1096 | downheap (ANHE *heap, int N, int k) |
829 | { |
1097 | { |
830 | ANHE he = heap [k]; |
1098 | ANHE he = heap [k]; |
831 | ANHE *E = heap + N + HEAP0; |
1099 | ANHE *E = heap + N + HEAP0; |
832 | |
1100 | |
… | |
… | |
872 | #define HEAP0 1 |
1140 | #define HEAP0 1 |
873 | #define HPARENT(k) ((k) >> 1) |
1141 | #define HPARENT(k) ((k) >> 1) |
874 | #define UPHEAP_DONE(p,k) (!(p)) |
1142 | #define UPHEAP_DONE(p,k) (!(p)) |
875 | |
1143 | |
876 | /* away from the root */ |
1144 | /* away from the root */ |
877 | void inline_speed |
1145 | inline_speed void |
878 | downheap (ANHE *heap, int N, int k) |
1146 | downheap (ANHE *heap, int N, int k) |
879 | { |
1147 | { |
880 | ANHE he = heap [k]; |
1148 | ANHE he = heap [k]; |
881 | |
1149 | |
882 | for (;;) |
1150 | for (;;) |
883 | { |
1151 | { |
884 | int c = k << 1; |
1152 | int c = k << 1; |
885 | |
1153 | |
886 | if (c > N + HEAP0 - 1) |
1154 | if (c >= N + HEAP0) |
887 | break; |
1155 | break; |
888 | |
1156 | |
889 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1157 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
890 | ? 1 : 0; |
1158 | ? 1 : 0; |
891 | |
1159 | |
… | |
… | |
902 | ev_active (ANHE_w (he)) = k; |
1170 | ev_active (ANHE_w (he)) = k; |
903 | } |
1171 | } |
904 | #endif |
1172 | #endif |
905 | |
1173 | |
906 | /* towards the root */ |
1174 | /* towards the root */ |
907 | void inline_speed |
1175 | inline_speed void |
908 | upheap (ANHE *heap, int k) |
1176 | upheap (ANHE *heap, int k) |
909 | { |
1177 | { |
910 | ANHE he = heap [k]; |
1178 | ANHE he = heap [k]; |
911 | |
1179 | |
912 | for (;;) |
1180 | for (;;) |
… | |
… | |
923 | |
1191 | |
924 | heap [k] = he; |
1192 | heap [k] = he; |
925 | ev_active (ANHE_w (he)) = k; |
1193 | ev_active (ANHE_w (he)) = k; |
926 | } |
1194 | } |
927 | |
1195 | |
928 | void inline_size |
1196 | /* move an element suitably so it is in a correct place */ |
|
|
1197 | inline_size void |
929 | adjustheap (ANHE *heap, int N, int k) |
1198 | adjustheap (ANHE *heap, int N, int k) |
930 | { |
1199 | { |
931 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1200 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
932 | upheap (heap, k); |
1201 | upheap (heap, k); |
933 | else |
1202 | else |
934 | downheap (heap, N, k); |
1203 | downheap (heap, N, k); |
935 | } |
1204 | } |
936 | |
1205 | |
937 | /* rebuild the heap: this function is used only once and executed rarely */ |
1206 | /* rebuild the heap: this function is used only once and executed rarely */ |
938 | void inline_size |
1207 | inline_size void |
939 | reheap (ANHE *heap, int N) |
1208 | reheap (ANHE *heap, int N) |
940 | { |
1209 | { |
941 | int i; |
1210 | int i; |
|
|
1211 | |
942 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1212 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
943 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
1213 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
944 | for (i = 0; i < N; ++i) |
1214 | for (i = 0; i < N; ++i) |
945 | upheap (heap, i + HEAP0); |
1215 | upheap (heap, i + HEAP0); |
946 | } |
1216 | } |
947 | |
1217 | |
948 | #if EV_VERIFY |
|
|
949 | static void |
|
|
950 | checkheap (ANHE *heap, int N) |
|
|
951 | { |
|
|
952 | int i; |
|
|
953 | |
|
|
954 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
955 | { |
|
|
956 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
957 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
958 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
959 | } |
|
|
960 | } |
|
|
961 | #endif |
|
|
962 | |
|
|
963 | /*****************************************************************************/ |
1218 | /*****************************************************************************/ |
964 | |
1219 | |
|
|
1220 | /* associate signal watchers to a signal signal */ |
965 | typedef struct |
1221 | typedef struct |
966 | { |
1222 | { |
|
|
1223 | EV_ATOMIC_T pending; |
|
|
1224 | #if EV_MULTIPLICITY |
|
|
1225 | EV_P; |
|
|
1226 | #endif |
967 | WL head; |
1227 | WL head; |
968 | EV_ATOMIC_T gotsig; |
|
|
969 | } ANSIG; |
1228 | } ANSIG; |
970 | |
1229 | |
971 | static ANSIG *signals; |
1230 | static ANSIG signals [EV_NSIG - 1]; |
972 | static int signalmax; |
|
|
973 | |
|
|
974 | static EV_ATOMIC_T gotsig; |
|
|
975 | |
|
|
976 | void inline_size |
|
|
977 | signals_init (ANSIG *base, int count) |
|
|
978 | { |
|
|
979 | while (count--) |
|
|
980 | { |
|
|
981 | base->head = 0; |
|
|
982 | base->gotsig = 0; |
|
|
983 | |
|
|
984 | ++base; |
|
|
985 | } |
|
|
986 | } |
|
|
987 | |
1231 | |
988 | /*****************************************************************************/ |
1232 | /*****************************************************************************/ |
989 | |
1233 | |
990 | void inline_speed |
1234 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
991 | fd_intern (int fd) |
|
|
992 | { |
|
|
993 | #ifdef _WIN32 |
|
|
994 | int arg = 1; |
|
|
995 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
996 | #else |
|
|
997 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
998 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
999 | #endif |
|
|
1000 | } |
|
|
1001 | |
1235 | |
1002 | static void noinline |
1236 | static void noinline |
1003 | evpipe_init (EV_P) |
1237 | evpipe_init (EV_P) |
1004 | { |
1238 | { |
1005 | if (!ev_is_active (&pipeev)) |
1239 | if (!ev_is_active (&pipe_w)) |
1006 | { |
1240 | { |
1007 | #if EV_USE_EVENTFD |
1241 | # if EV_USE_EVENTFD |
|
|
1242 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1243 | if (evfd < 0 && errno == EINVAL) |
1008 | if ((evfd = eventfd (0, 0)) >= 0) |
1244 | evfd = eventfd (0, 0); |
|
|
1245 | |
|
|
1246 | if (evfd >= 0) |
1009 | { |
1247 | { |
1010 | evpipe [0] = -1; |
1248 | evpipe [0] = -1; |
1011 | fd_intern (evfd); |
1249 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1012 | ev_io_set (&pipeev, evfd, EV_READ); |
1250 | ev_io_set (&pipe_w, evfd, EV_READ); |
1013 | } |
1251 | } |
1014 | else |
1252 | else |
1015 | #endif |
1253 | # endif |
1016 | { |
1254 | { |
1017 | while (pipe (evpipe)) |
1255 | while (pipe (evpipe)) |
1018 | syserr ("(libev) error creating signal/async pipe"); |
1256 | ev_syserr ("(libev) error creating signal/async pipe"); |
1019 | |
1257 | |
1020 | fd_intern (evpipe [0]); |
1258 | fd_intern (evpipe [0]); |
1021 | fd_intern (evpipe [1]); |
1259 | fd_intern (evpipe [1]); |
1022 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1260 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1023 | } |
1261 | } |
1024 | |
1262 | |
1025 | ev_io_start (EV_A_ &pipeev); |
1263 | ev_io_start (EV_A_ &pipe_w); |
1026 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1264 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1027 | } |
1265 | } |
1028 | } |
1266 | } |
1029 | |
1267 | |
1030 | void inline_size |
1268 | inline_size void |
1031 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1269 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1032 | { |
1270 | { |
1033 | if (!*flag) |
1271 | if (!*flag) |
1034 | { |
1272 | { |
1035 | int old_errno = errno; /* save errno because write might clobber it */ |
1273 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1274 | char dummy; |
1036 | |
1275 | |
1037 | *flag = 1; |
1276 | *flag = 1; |
1038 | |
1277 | |
1039 | #if EV_USE_EVENTFD |
1278 | #if EV_USE_EVENTFD |
1040 | if (evfd >= 0) |
1279 | if (evfd >= 0) |
… | |
… | |
1042 | uint64_t counter = 1; |
1281 | uint64_t counter = 1; |
1043 | write (evfd, &counter, sizeof (uint64_t)); |
1282 | write (evfd, &counter, sizeof (uint64_t)); |
1044 | } |
1283 | } |
1045 | else |
1284 | else |
1046 | #endif |
1285 | #endif |
1047 | write (evpipe [1], &old_errno, 1); |
1286 | write (evpipe [1], &dummy, 1); |
1048 | |
1287 | |
1049 | errno = old_errno; |
1288 | errno = old_errno; |
1050 | } |
1289 | } |
1051 | } |
1290 | } |
1052 | |
1291 | |
|
|
1292 | /* called whenever the libev signal pipe */ |
|
|
1293 | /* got some events (signal, async) */ |
1053 | static void |
1294 | static void |
1054 | pipecb (EV_P_ ev_io *iow, int revents) |
1295 | pipecb (EV_P_ ev_io *iow, int revents) |
1055 | { |
1296 | { |
|
|
1297 | int i; |
|
|
1298 | |
1056 | #if EV_USE_EVENTFD |
1299 | #if EV_USE_EVENTFD |
1057 | if (evfd >= 0) |
1300 | if (evfd >= 0) |
1058 | { |
1301 | { |
1059 | uint64_t counter; |
1302 | uint64_t counter; |
1060 | read (evfd, &counter, sizeof (uint64_t)); |
1303 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1064 | { |
1307 | { |
1065 | char dummy; |
1308 | char dummy; |
1066 | read (evpipe [0], &dummy, 1); |
1309 | read (evpipe [0], &dummy, 1); |
1067 | } |
1310 | } |
1068 | |
1311 | |
1069 | if (gotsig && ev_is_default_loop (EV_A)) |
1312 | if (sig_pending) |
1070 | { |
1313 | { |
1071 | int signum; |
1314 | sig_pending = 0; |
1072 | gotsig = 0; |
|
|
1073 | |
1315 | |
1074 | for (signum = signalmax; signum--; ) |
1316 | for (i = EV_NSIG - 1; i--; ) |
1075 | if (signals [signum].gotsig) |
1317 | if (expect_false (signals [i].pending)) |
1076 | ev_feed_signal_event (EV_A_ signum + 1); |
1318 | ev_feed_signal_event (EV_A_ i + 1); |
1077 | } |
1319 | } |
1078 | |
1320 | |
1079 | #if EV_ASYNC_ENABLE |
1321 | #if EV_ASYNC_ENABLE |
1080 | if (gotasync) |
1322 | if (async_pending) |
1081 | { |
1323 | { |
1082 | int i; |
1324 | async_pending = 0; |
1083 | gotasync = 0; |
|
|
1084 | |
1325 | |
1085 | for (i = asynccnt; i--; ) |
1326 | for (i = asynccnt; i--; ) |
1086 | if (asyncs [i]->sent) |
1327 | if (asyncs [i]->sent) |
1087 | { |
1328 | { |
1088 | asyncs [i]->sent = 0; |
1329 | asyncs [i]->sent = 0; |
… | |
… | |
1096 | |
1337 | |
1097 | static void |
1338 | static void |
1098 | ev_sighandler (int signum) |
1339 | ev_sighandler (int signum) |
1099 | { |
1340 | { |
1100 | #if EV_MULTIPLICITY |
1341 | #if EV_MULTIPLICITY |
1101 | struct ev_loop *loop = &default_loop_struct; |
1342 | EV_P = signals [signum - 1].loop; |
1102 | #endif |
1343 | #endif |
1103 | |
1344 | |
1104 | #if _WIN32 |
1345 | #ifdef _WIN32 |
1105 | signal (signum, ev_sighandler); |
1346 | signal (signum, ev_sighandler); |
1106 | #endif |
1347 | #endif |
1107 | |
1348 | |
1108 | signals [signum - 1].gotsig = 1; |
1349 | signals [signum - 1].pending = 1; |
1109 | evpipe_write (EV_A_ &gotsig); |
1350 | evpipe_write (EV_A_ &sig_pending); |
1110 | } |
1351 | } |
1111 | |
1352 | |
1112 | void noinline |
1353 | void noinline |
1113 | ev_feed_signal_event (EV_P_ int signum) |
1354 | ev_feed_signal_event (EV_P_ int signum) |
1114 | { |
1355 | { |
1115 | WL w; |
1356 | WL w; |
1116 | |
1357 | |
|
|
1358 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1359 | return; |
|
|
1360 | |
|
|
1361 | --signum; |
|
|
1362 | |
1117 | #if EV_MULTIPLICITY |
1363 | #if EV_MULTIPLICITY |
1118 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1364 | /* it is permissible to try to feed a signal to the wrong loop */ |
1119 | #endif |
1365 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1120 | |
1366 | |
1121 | --signum; |
1367 | if (expect_false (signals [signum].loop != EV_A)) |
1122 | |
|
|
1123 | if (signum < 0 || signum >= signalmax) |
|
|
1124 | return; |
1368 | return; |
|
|
1369 | #endif |
1125 | |
1370 | |
1126 | signals [signum].gotsig = 0; |
1371 | signals [signum].pending = 0; |
1127 | |
1372 | |
1128 | for (w = signals [signum].head; w; w = w->next) |
1373 | for (w = signals [signum].head; w; w = w->next) |
1129 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1374 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1130 | } |
1375 | } |
1131 | |
1376 | |
|
|
1377 | #if EV_USE_SIGNALFD |
|
|
1378 | static void |
|
|
1379 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1380 | { |
|
|
1381 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1382 | |
|
|
1383 | for (;;) |
|
|
1384 | { |
|
|
1385 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1386 | |
|
|
1387 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1388 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1389 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1390 | |
|
|
1391 | if (res < (ssize_t)sizeof (si)) |
|
|
1392 | break; |
|
|
1393 | } |
|
|
1394 | } |
|
|
1395 | #endif |
|
|
1396 | |
|
|
1397 | #endif |
|
|
1398 | |
1132 | /*****************************************************************************/ |
1399 | /*****************************************************************************/ |
1133 | |
1400 | |
|
|
1401 | #if EV_CHILD_ENABLE |
1134 | static WL childs [EV_PID_HASHSIZE]; |
1402 | static WL childs [EV_PID_HASHSIZE]; |
1135 | |
|
|
1136 | #ifndef _WIN32 |
|
|
1137 | |
1403 | |
1138 | static ev_signal childev; |
1404 | static ev_signal childev; |
1139 | |
1405 | |
1140 | #ifndef WIFCONTINUED |
1406 | #ifndef WIFCONTINUED |
1141 | # define WIFCONTINUED(status) 0 |
1407 | # define WIFCONTINUED(status) 0 |
1142 | #endif |
1408 | #endif |
1143 | |
1409 | |
1144 | void inline_speed |
1410 | /* handle a single child status event */ |
|
|
1411 | inline_speed void |
1145 | child_reap (EV_P_ int chain, int pid, int status) |
1412 | child_reap (EV_P_ int chain, int pid, int status) |
1146 | { |
1413 | { |
1147 | ev_child *w; |
1414 | ev_child *w; |
1148 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1415 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1149 | |
1416 | |
1150 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1417 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1151 | { |
1418 | { |
1152 | if ((w->pid == pid || !w->pid) |
1419 | if ((w->pid == pid || !w->pid) |
1153 | && (!traced || (w->flags & 1))) |
1420 | && (!traced || (w->flags & 1))) |
1154 | { |
1421 | { |
1155 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1422 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1162 | |
1429 | |
1163 | #ifndef WCONTINUED |
1430 | #ifndef WCONTINUED |
1164 | # define WCONTINUED 0 |
1431 | # define WCONTINUED 0 |
1165 | #endif |
1432 | #endif |
1166 | |
1433 | |
|
|
1434 | /* called on sigchld etc., calls waitpid */ |
1167 | static void |
1435 | static void |
1168 | childcb (EV_P_ ev_signal *sw, int revents) |
1436 | childcb (EV_P_ ev_signal *sw, int revents) |
1169 | { |
1437 | { |
1170 | int pid, status; |
1438 | int pid, status; |
1171 | |
1439 | |
… | |
… | |
1179 | /* make sure we are called again until all children have been reaped */ |
1447 | /* make sure we are called again until all children have been reaped */ |
1180 | /* we need to do it this way so that the callback gets called before we continue */ |
1448 | /* we need to do it this way so that the callback gets called before we continue */ |
1181 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1449 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1182 | |
1450 | |
1183 | child_reap (EV_A_ pid, pid, status); |
1451 | child_reap (EV_A_ pid, pid, status); |
1184 | if (EV_PID_HASHSIZE > 1) |
1452 | if ((EV_PID_HASHSIZE) > 1) |
1185 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1453 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1186 | } |
1454 | } |
1187 | |
1455 | |
1188 | #endif |
1456 | #endif |
1189 | |
1457 | |
… | |
… | |
1252 | /* kqueue is borked on everything but netbsd apparently */ |
1520 | /* kqueue is borked on everything but netbsd apparently */ |
1253 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1521 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1254 | flags &= ~EVBACKEND_KQUEUE; |
1522 | flags &= ~EVBACKEND_KQUEUE; |
1255 | #endif |
1523 | #endif |
1256 | #ifdef __APPLE__ |
1524 | #ifdef __APPLE__ |
1257 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1525 | /* only select works correctly on that "unix-certified" platform */ |
1258 | flags &= ~EVBACKEND_POLL; |
1526 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1527 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1528 | #endif |
|
|
1529 | #ifdef __FreeBSD__ |
|
|
1530 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1259 | #endif |
1531 | #endif |
1260 | |
1532 | |
1261 | return flags; |
1533 | return flags; |
1262 | } |
1534 | } |
1263 | |
1535 | |
… | |
… | |
1277 | ev_backend (EV_P) |
1549 | ev_backend (EV_P) |
1278 | { |
1550 | { |
1279 | return backend; |
1551 | return backend; |
1280 | } |
1552 | } |
1281 | |
1553 | |
|
|
1554 | #if EV_FEATURE_API |
1282 | unsigned int |
1555 | unsigned int |
1283 | ev_loop_count (EV_P) |
1556 | ev_iteration (EV_P) |
1284 | { |
1557 | { |
1285 | return loop_count; |
1558 | return loop_count; |
1286 | } |
1559 | } |
1287 | |
1560 | |
|
|
1561 | unsigned int |
|
|
1562 | ev_depth (EV_P) |
|
|
1563 | { |
|
|
1564 | return loop_depth; |
|
|
1565 | } |
|
|
1566 | |
1288 | void |
1567 | void |
1289 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1568 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1290 | { |
1569 | { |
1291 | io_blocktime = interval; |
1570 | io_blocktime = interval; |
1292 | } |
1571 | } |
… | |
… | |
1295 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1574 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1296 | { |
1575 | { |
1297 | timeout_blocktime = interval; |
1576 | timeout_blocktime = interval; |
1298 | } |
1577 | } |
1299 | |
1578 | |
|
|
1579 | void |
|
|
1580 | ev_set_userdata (EV_P_ void *data) |
|
|
1581 | { |
|
|
1582 | userdata = data; |
|
|
1583 | } |
|
|
1584 | |
|
|
1585 | void * |
|
|
1586 | ev_userdata (EV_P) |
|
|
1587 | { |
|
|
1588 | return userdata; |
|
|
1589 | } |
|
|
1590 | |
|
|
1591 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1592 | { |
|
|
1593 | invoke_cb = invoke_pending_cb; |
|
|
1594 | } |
|
|
1595 | |
|
|
1596 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1597 | { |
|
|
1598 | release_cb = release; |
|
|
1599 | acquire_cb = acquire; |
|
|
1600 | } |
|
|
1601 | #endif |
|
|
1602 | |
|
|
1603 | /* initialise a loop structure, must be zero-initialised */ |
1300 | static void noinline |
1604 | static void noinline |
1301 | loop_init (EV_P_ unsigned int flags) |
1605 | loop_init (EV_P_ unsigned int flags) |
1302 | { |
1606 | { |
1303 | if (!backend) |
1607 | if (!backend) |
1304 | { |
1608 | { |
|
|
1609 | #if EV_USE_REALTIME |
|
|
1610 | if (!have_realtime) |
|
|
1611 | { |
|
|
1612 | struct timespec ts; |
|
|
1613 | |
|
|
1614 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1615 | have_realtime = 1; |
|
|
1616 | } |
|
|
1617 | #endif |
|
|
1618 | |
1305 | #if EV_USE_MONOTONIC |
1619 | #if EV_USE_MONOTONIC |
|
|
1620 | if (!have_monotonic) |
1306 | { |
1621 | { |
1307 | struct timespec ts; |
1622 | struct timespec ts; |
|
|
1623 | |
1308 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1624 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1309 | have_monotonic = 1; |
1625 | have_monotonic = 1; |
1310 | } |
1626 | } |
1311 | #endif |
1627 | #endif |
|
|
1628 | |
|
|
1629 | /* pid check not overridable via env */ |
|
|
1630 | #ifndef _WIN32 |
|
|
1631 | if (flags & EVFLAG_FORKCHECK) |
|
|
1632 | curpid = getpid (); |
|
|
1633 | #endif |
|
|
1634 | |
|
|
1635 | if (!(flags & EVFLAG_NOENV) |
|
|
1636 | && !enable_secure () |
|
|
1637 | && getenv ("LIBEV_FLAGS")) |
|
|
1638 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1312 | |
1639 | |
1313 | ev_rt_now = ev_time (); |
1640 | ev_rt_now = ev_time (); |
1314 | mn_now = get_clock (); |
1641 | mn_now = get_clock (); |
1315 | now_floor = mn_now; |
1642 | now_floor = mn_now; |
1316 | rtmn_diff = ev_rt_now - mn_now; |
1643 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1644 | #if EV_FEATURE_API |
|
|
1645 | invoke_cb = ev_invoke_pending; |
|
|
1646 | #endif |
1317 | |
1647 | |
1318 | io_blocktime = 0.; |
1648 | io_blocktime = 0.; |
1319 | timeout_blocktime = 0.; |
1649 | timeout_blocktime = 0.; |
1320 | backend = 0; |
1650 | backend = 0; |
1321 | backend_fd = -1; |
1651 | backend_fd = -1; |
1322 | gotasync = 0; |
1652 | sig_pending = 0; |
|
|
1653 | #if EV_ASYNC_ENABLE |
|
|
1654 | async_pending = 0; |
|
|
1655 | #endif |
1323 | #if EV_USE_INOTIFY |
1656 | #if EV_USE_INOTIFY |
1324 | fs_fd = -2; |
1657 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1325 | #endif |
1658 | #endif |
1326 | |
1659 | #if EV_USE_SIGNALFD |
1327 | /* pid check not overridable via env */ |
1660 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1328 | #ifndef _WIN32 |
|
|
1329 | if (flags & EVFLAG_FORKCHECK) |
|
|
1330 | curpid = getpid (); |
|
|
1331 | #endif |
1661 | #endif |
1332 | |
|
|
1333 | if (!(flags & EVFLAG_NOENV) |
|
|
1334 | && !enable_secure () |
|
|
1335 | && getenv ("LIBEV_FLAGS")) |
|
|
1336 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1337 | |
1662 | |
1338 | if (!(flags & 0x0000ffffU)) |
1663 | if (!(flags & 0x0000ffffU)) |
1339 | flags |= ev_recommended_backends (); |
1664 | flags |= ev_recommended_backends (); |
1340 | |
1665 | |
1341 | #if EV_USE_PORT |
1666 | #if EV_USE_PORT |
… | |
… | |
1352 | #endif |
1677 | #endif |
1353 | #if EV_USE_SELECT |
1678 | #if EV_USE_SELECT |
1354 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1679 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1355 | #endif |
1680 | #endif |
1356 | |
1681 | |
|
|
1682 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1683 | |
|
|
1684 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1357 | ev_init (&pipeev, pipecb); |
1685 | ev_init (&pipe_w, pipecb); |
1358 | ev_set_priority (&pipeev, EV_MAXPRI); |
1686 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1687 | #endif |
1359 | } |
1688 | } |
1360 | } |
1689 | } |
1361 | |
1690 | |
|
|
1691 | /* free up a loop structure */ |
1362 | static void noinline |
1692 | static void noinline |
1363 | loop_destroy (EV_P) |
1693 | loop_destroy (EV_P) |
1364 | { |
1694 | { |
1365 | int i; |
1695 | int i; |
1366 | |
1696 | |
1367 | if (ev_is_active (&pipeev)) |
1697 | if (ev_is_active (&pipe_w)) |
1368 | { |
1698 | { |
1369 | ev_ref (EV_A); /* signal watcher */ |
1699 | /*ev_ref (EV_A);*/ |
1370 | ev_io_stop (EV_A_ &pipeev); |
1700 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1371 | |
1701 | |
1372 | #if EV_USE_EVENTFD |
1702 | #if EV_USE_EVENTFD |
1373 | if (evfd >= 0) |
1703 | if (evfd >= 0) |
1374 | close (evfd); |
1704 | close (evfd); |
1375 | #endif |
1705 | #endif |
1376 | |
1706 | |
1377 | if (evpipe [0] >= 0) |
1707 | if (evpipe [0] >= 0) |
1378 | { |
1708 | { |
1379 | close (evpipe [0]); |
1709 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1380 | close (evpipe [1]); |
1710 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1381 | } |
1711 | } |
1382 | } |
1712 | } |
|
|
1713 | |
|
|
1714 | #if EV_USE_SIGNALFD |
|
|
1715 | if (ev_is_active (&sigfd_w)) |
|
|
1716 | close (sigfd); |
|
|
1717 | #endif |
1383 | |
1718 | |
1384 | #if EV_USE_INOTIFY |
1719 | #if EV_USE_INOTIFY |
1385 | if (fs_fd >= 0) |
1720 | if (fs_fd >= 0) |
1386 | close (fs_fd); |
1721 | close (fs_fd); |
1387 | #endif |
1722 | #endif |
… | |
… | |
1411 | #if EV_IDLE_ENABLE |
1746 | #if EV_IDLE_ENABLE |
1412 | array_free (idle, [i]); |
1747 | array_free (idle, [i]); |
1413 | #endif |
1748 | #endif |
1414 | } |
1749 | } |
1415 | |
1750 | |
1416 | ev_free (anfds); anfdmax = 0; |
1751 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1417 | |
1752 | |
1418 | /* have to use the microsoft-never-gets-it-right macro */ |
1753 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1754 | array_free (rfeed, EMPTY); |
1419 | array_free (fdchange, EMPTY); |
1755 | array_free (fdchange, EMPTY); |
1420 | array_free (timer, EMPTY); |
1756 | array_free (timer, EMPTY); |
1421 | #if EV_PERIODIC_ENABLE |
1757 | #if EV_PERIODIC_ENABLE |
1422 | array_free (periodic, EMPTY); |
1758 | array_free (periodic, EMPTY); |
1423 | #endif |
1759 | #endif |
… | |
… | |
1432 | |
1768 | |
1433 | backend = 0; |
1769 | backend = 0; |
1434 | } |
1770 | } |
1435 | |
1771 | |
1436 | #if EV_USE_INOTIFY |
1772 | #if EV_USE_INOTIFY |
1437 | void inline_size infy_fork (EV_P); |
1773 | inline_size void infy_fork (EV_P); |
1438 | #endif |
1774 | #endif |
1439 | |
1775 | |
1440 | void inline_size |
1776 | inline_size void |
1441 | loop_fork (EV_P) |
1777 | loop_fork (EV_P) |
1442 | { |
1778 | { |
1443 | #if EV_USE_PORT |
1779 | #if EV_USE_PORT |
1444 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1780 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1445 | #endif |
1781 | #endif |
… | |
… | |
1451 | #endif |
1787 | #endif |
1452 | #if EV_USE_INOTIFY |
1788 | #if EV_USE_INOTIFY |
1453 | infy_fork (EV_A); |
1789 | infy_fork (EV_A); |
1454 | #endif |
1790 | #endif |
1455 | |
1791 | |
1456 | if (ev_is_active (&pipeev)) |
1792 | if (ev_is_active (&pipe_w)) |
1457 | { |
1793 | { |
1458 | /* this "locks" the handlers against writing to the pipe */ |
1794 | /* this "locks" the handlers against writing to the pipe */ |
1459 | /* while we modify the fd vars */ |
1795 | /* while we modify the fd vars */ |
1460 | gotsig = 1; |
1796 | sig_pending = 1; |
1461 | #if EV_ASYNC_ENABLE |
1797 | #if EV_ASYNC_ENABLE |
1462 | gotasync = 1; |
1798 | async_pending = 1; |
1463 | #endif |
1799 | #endif |
1464 | |
1800 | |
1465 | ev_ref (EV_A); |
1801 | ev_ref (EV_A); |
1466 | ev_io_stop (EV_A_ &pipeev); |
1802 | ev_io_stop (EV_A_ &pipe_w); |
1467 | |
1803 | |
1468 | #if EV_USE_EVENTFD |
1804 | #if EV_USE_EVENTFD |
1469 | if (evfd >= 0) |
1805 | if (evfd >= 0) |
1470 | close (evfd); |
1806 | close (evfd); |
1471 | #endif |
1807 | #endif |
1472 | |
1808 | |
1473 | if (evpipe [0] >= 0) |
1809 | if (evpipe [0] >= 0) |
1474 | { |
1810 | { |
1475 | close (evpipe [0]); |
1811 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1476 | close (evpipe [1]); |
1812 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1477 | } |
1813 | } |
1478 | |
1814 | |
|
|
1815 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1479 | evpipe_init (EV_A); |
1816 | evpipe_init (EV_A); |
1480 | /* now iterate over everything, in case we missed something */ |
1817 | /* now iterate over everything, in case we missed something */ |
1481 | pipecb (EV_A_ &pipeev, EV_READ); |
1818 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1819 | #endif |
1482 | } |
1820 | } |
1483 | |
1821 | |
1484 | postfork = 0; |
1822 | postfork = 0; |
1485 | } |
1823 | } |
1486 | |
1824 | |
1487 | #if EV_MULTIPLICITY |
1825 | #if EV_MULTIPLICITY |
1488 | |
1826 | |
1489 | struct ev_loop * |
1827 | struct ev_loop * |
1490 | ev_loop_new (unsigned int flags) |
1828 | ev_loop_new (unsigned int flags) |
1491 | { |
1829 | { |
1492 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1830 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1493 | |
1831 | |
1494 | memset (loop, 0, sizeof (struct ev_loop)); |
1832 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1495 | |
|
|
1496 | loop_init (EV_A_ flags); |
1833 | loop_init (EV_A_ flags); |
1497 | |
1834 | |
1498 | if (ev_backend (EV_A)) |
1835 | if (ev_backend (EV_A)) |
1499 | return loop; |
1836 | return EV_A; |
1500 | |
1837 | |
1501 | return 0; |
1838 | return 0; |
1502 | } |
1839 | } |
1503 | |
1840 | |
1504 | void |
1841 | void |
… | |
… | |
1511 | void |
1848 | void |
1512 | ev_loop_fork (EV_P) |
1849 | ev_loop_fork (EV_P) |
1513 | { |
1850 | { |
1514 | postfork = 1; /* must be in line with ev_default_fork */ |
1851 | postfork = 1; /* must be in line with ev_default_fork */ |
1515 | } |
1852 | } |
|
|
1853 | #endif /* multiplicity */ |
1516 | |
1854 | |
1517 | #if EV_VERIFY |
1855 | #if EV_VERIFY |
1518 | static void |
1856 | static void noinline |
|
|
1857 | verify_watcher (EV_P_ W w) |
|
|
1858 | { |
|
|
1859 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1860 | |
|
|
1861 | if (w->pending) |
|
|
1862 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | static void noinline |
|
|
1866 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1867 | { |
|
|
1868 | int i; |
|
|
1869 | |
|
|
1870 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1871 | { |
|
|
1872 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1873 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1874 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1875 | |
|
|
1876 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1877 | } |
|
|
1878 | } |
|
|
1879 | |
|
|
1880 | static void noinline |
1519 | array_check (W **ws, int cnt) |
1881 | array_verify (EV_P_ W *ws, int cnt) |
1520 | { |
1882 | { |
1521 | while (cnt--) |
1883 | while (cnt--) |
|
|
1884 | { |
1522 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1885 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1886 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1887 | } |
1523 | } |
1888 | } |
1524 | #endif |
1889 | #endif |
1525 | |
1890 | |
|
|
1891 | #if EV_FEATURE_API |
1526 | void |
1892 | void |
1527 | ev_loop_verify (EV_P) |
1893 | ev_verify (EV_P) |
1528 | { |
1894 | { |
1529 | #if EV_VERIFY |
1895 | #if EV_VERIFY |
1530 | int i; |
1896 | int i; |
|
|
1897 | WL w; |
1531 | |
1898 | |
|
|
1899 | assert (activecnt >= -1); |
|
|
1900 | |
|
|
1901 | assert (fdchangemax >= fdchangecnt); |
|
|
1902 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1903 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1904 | |
|
|
1905 | assert (anfdmax >= 0); |
|
|
1906 | for (i = 0; i < anfdmax; ++i) |
|
|
1907 | for (w = anfds [i].head; w; w = w->next) |
|
|
1908 | { |
|
|
1909 | verify_watcher (EV_A_ (W)w); |
|
|
1910 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1911 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | assert (timermax >= timercnt); |
1532 | checkheap (timers, timercnt); |
1915 | verify_heap (EV_A_ timers, timercnt); |
|
|
1916 | |
1533 | #if EV_PERIODIC_ENABLE |
1917 | #if EV_PERIODIC_ENABLE |
|
|
1918 | assert (periodicmax >= periodiccnt); |
1534 | checkheap (periodics, periodiccnt); |
1919 | verify_heap (EV_A_ periodics, periodiccnt); |
1535 | #endif |
1920 | #endif |
1536 | |
1921 | |
|
|
1922 | for (i = NUMPRI; i--; ) |
|
|
1923 | { |
|
|
1924 | assert (pendingmax [i] >= pendingcnt [i]); |
1537 | #if EV_IDLE_ENABLE |
1925 | #if EV_IDLE_ENABLE |
1538 | for (i = NUMPRI; i--; ) |
1926 | assert (idleall >= 0); |
|
|
1927 | assert (idlemax [i] >= idlecnt [i]); |
1539 | array_check ((W **)idles [i], idlecnt [i]); |
1928 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
1540 | #endif |
1929 | #endif |
|
|
1930 | } |
|
|
1931 | |
1541 | #if EV_FORK_ENABLE |
1932 | #if EV_FORK_ENABLE |
|
|
1933 | assert (forkmax >= forkcnt); |
1542 | array_check ((W **)forks, forkcnt); |
1934 | array_verify (EV_A_ (W *)forks, forkcnt); |
1543 | #endif |
1935 | #endif |
|
|
1936 | |
1544 | #if EV_ASYNC_ENABLE |
1937 | #if EV_ASYNC_ENABLE |
|
|
1938 | assert (asyncmax >= asynccnt); |
1545 | array_check ((W **)asyncs, asynccnt); |
1939 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1940 | #endif |
|
|
1941 | |
|
|
1942 | #if EV_PREPARE_ENABLE |
|
|
1943 | assert (preparemax >= preparecnt); |
|
|
1944 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1945 | #endif |
|
|
1946 | |
|
|
1947 | #if EV_CHECK_ENABLE |
|
|
1948 | assert (checkmax >= checkcnt); |
|
|
1949 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1950 | #endif |
|
|
1951 | |
|
|
1952 | # if 0 |
|
|
1953 | #if EV_CHILD_ENABLE |
|
|
1954 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1955 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1956 | #endif |
1546 | #endif |
1957 | # endif |
1547 | array_check ((W **)prepares, preparecnt); |
|
|
1548 | array_check ((W **)checks, checkcnt); |
|
|
1549 | #endif |
1958 | #endif |
1550 | } |
1959 | } |
1551 | |
1960 | #endif |
1552 | #endif /* multiplicity */ |
|
|
1553 | |
1961 | |
1554 | #if EV_MULTIPLICITY |
1962 | #if EV_MULTIPLICITY |
1555 | struct ev_loop * |
1963 | struct ev_loop * |
1556 | ev_default_loop_init (unsigned int flags) |
1964 | ev_default_loop_init (unsigned int flags) |
1557 | #else |
1965 | #else |
… | |
… | |
1560 | #endif |
1968 | #endif |
1561 | { |
1969 | { |
1562 | if (!ev_default_loop_ptr) |
1970 | if (!ev_default_loop_ptr) |
1563 | { |
1971 | { |
1564 | #if EV_MULTIPLICITY |
1972 | #if EV_MULTIPLICITY |
1565 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1973 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1566 | #else |
1974 | #else |
1567 | ev_default_loop_ptr = 1; |
1975 | ev_default_loop_ptr = 1; |
1568 | #endif |
1976 | #endif |
1569 | |
1977 | |
1570 | loop_init (EV_A_ flags); |
1978 | loop_init (EV_A_ flags); |
1571 | |
1979 | |
1572 | if (ev_backend (EV_A)) |
1980 | if (ev_backend (EV_A)) |
1573 | { |
1981 | { |
1574 | #ifndef _WIN32 |
1982 | #if EV_CHILD_ENABLE |
1575 | ev_signal_init (&childev, childcb, SIGCHLD); |
1983 | ev_signal_init (&childev, childcb, SIGCHLD); |
1576 | ev_set_priority (&childev, EV_MAXPRI); |
1984 | ev_set_priority (&childev, EV_MAXPRI); |
1577 | ev_signal_start (EV_A_ &childev); |
1985 | ev_signal_start (EV_A_ &childev); |
1578 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1986 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1579 | #endif |
1987 | #endif |
… | |
… | |
1587 | |
1995 | |
1588 | void |
1996 | void |
1589 | ev_default_destroy (void) |
1997 | ev_default_destroy (void) |
1590 | { |
1998 | { |
1591 | #if EV_MULTIPLICITY |
1999 | #if EV_MULTIPLICITY |
1592 | struct ev_loop *loop = ev_default_loop_ptr; |
2000 | EV_P = ev_default_loop_ptr; |
1593 | #endif |
2001 | #endif |
1594 | |
2002 | |
1595 | #ifndef _WIN32 |
2003 | ev_default_loop_ptr = 0; |
|
|
2004 | |
|
|
2005 | #if EV_CHILD_ENABLE |
1596 | ev_ref (EV_A); /* child watcher */ |
2006 | ev_ref (EV_A); /* child watcher */ |
1597 | ev_signal_stop (EV_A_ &childev); |
2007 | ev_signal_stop (EV_A_ &childev); |
1598 | #endif |
2008 | #endif |
1599 | |
2009 | |
1600 | loop_destroy (EV_A); |
2010 | loop_destroy (EV_A); |
… | |
… | |
1602 | |
2012 | |
1603 | void |
2013 | void |
1604 | ev_default_fork (void) |
2014 | ev_default_fork (void) |
1605 | { |
2015 | { |
1606 | #if EV_MULTIPLICITY |
2016 | #if EV_MULTIPLICITY |
1607 | struct ev_loop *loop = ev_default_loop_ptr; |
2017 | EV_P = ev_default_loop_ptr; |
1608 | #endif |
2018 | #endif |
1609 | |
2019 | |
1610 | if (backend) |
|
|
1611 | postfork = 1; /* must be in line with ev_loop_fork */ |
2020 | postfork = 1; /* must be in line with ev_loop_fork */ |
1612 | } |
2021 | } |
1613 | |
2022 | |
1614 | /*****************************************************************************/ |
2023 | /*****************************************************************************/ |
1615 | |
2024 | |
1616 | void |
2025 | void |
1617 | ev_invoke (EV_P_ void *w, int revents) |
2026 | ev_invoke (EV_P_ void *w, int revents) |
1618 | { |
2027 | { |
1619 | EV_CB_INVOKE ((W)w, revents); |
2028 | EV_CB_INVOKE ((W)w, revents); |
1620 | } |
2029 | } |
1621 | |
2030 | |
1622 | void inline_speed |
2031 | unsigned int |
1623 | call_pending (EV_P) |
2032 | ev_pending_count (EV_P) |
|
|
2033 | { |
|
|
2034 | int pri; |
|
|
2035 | unsigned int count = 0; |
|
|
2036 | |
|
|
2037 | for (pri = NUMPRI; pri--; ) |
|
|
2038 | count += pendingcnt [pri]; |
|
|
2039 | |
|
|
2040 | return count; |
|
|
2041 | } |
|
|
2042 | |
|
|
2043 | void noinline |
|
|
2044 | ev_invoke_pending (EV_P) |
1624 | { |
2045 | { |
1625 | int pri; |
2046 | int pri; |
1626 | |
2047 | |
1627 | for (pri = NUMPRI; pri--; ) |
2048 | for (pri = NUMPRI; pri--; ) |
1628 | while (pendingcnt [pri]) |
2049 | while (pendingcnt [pri]) |
1629 | { |
2050 | { |
1630 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2051 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1631 | |
2052 | |
1632 | if (expect_true (p->w)) |
|
|
1633 | { |
|
|
1634 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2053 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2054 | /* ^ this is no longer true, as pending_w could be here */ |
1635 | |
2055 | |
1636 | p->w->pending = 0; |
2056 | p->w->pending = 0; |
1637 | EV_CB_INVOKE (p->w, p->events); |
2057 | EV_CB_INVOKE (p->w, p->events); |
1638 | EV_FREQUENT_CHECK; |
2058 | EV_FREQUENT_CHECK; |
1639 | } |
|
|
1640 | } |
2059 | } |
1641 | } |
2060 | } |
1642 | |
2061 | |
1643 | #if EV_IDLE_ENABLE |
2062 | #if EV_IDLE_ENABLE |
1644 | void inline_size |
2063 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2064 | /* only when higher priorities are idle" logic */ |
|
|
2065 | inline_size void |
1645 | idle_reify (EV_P) |
2066 | idle_reify (EV_P) |
1646 | { |
2067 | { |
1647 | if (expect_false (idleall)) |
2068 | if (expect_false (idleall)) |
1648 | { |
2069 | { |
1649 | int pri; |
2070 | int pri; |
… | |
… | |
1661 | } |
2082 | } |
1662 | } |
2083 | } |
1663 | } |
2084 | } |
1664 | #endif |
2085 | #endif |
1665 | |
2086 | |
1666 | void inline_size |
2087 | /* make timers pending */ |
|
|
2088 | inline_size void |
1667 | timers_reify (EV_P) |
2089 | timers_reify (EV_P) |
1668 | { |
2090 | { |
1669 | EV_FREQUENT_CHECK; |
2091 | EV_FREQUENT_CHECK; |
1670 | |
2092 | |
1671 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2093 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1672 | { |
2094 | { |
1673 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2095 | do |
1674 | |
|
|
1675 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1676 | |
|
|
1677 | /* first reschedule or stop timer */ |
|
|
1678 | if (w->repeat) |
|
|
1679 | { |
2096 | { |
|
|
2097 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2098 | |
|
|
2099 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2100 | |
|
|
2101 | /* first reschedule or stop timer */ |
|
|
2102 | if (w->repeat) |
|
|
2103 | { |
1680 | ev_at (w) += w->repeat; |
2104 | ev_at (w) += w->repeat; |
1681 | if (ev_at (w) < mn_now) |
2105 | if (ev_at (w) < mn_now) |
1682 | ev_at (w) = mn_now; |
2106 | ev_at (w) = mn_now; |
1683 | |
2107 | |
1684 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2108 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1685 | |
2109 | |
1686 | ANHE_at_cache (timers [HEAP0]); |
2110 | ANHE_at_cache (timers [HEAP0]); |
1687 | downheap (timers, timercnt, HEAP0); |
2111 | downheap (timers, timercnt, HEAP0); |
|
|
2112 | } |
|
|
2113 | else |
|
|
2114 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2115 | |
|
|
2116 | EV_FREQUENT_CHECK; |
|
|
2117 | feed_reverse (EV_A_ (W)w); |
1688 | } |
2118 | } |
1689 | else |
2119 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1690 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1691 | |
2120 | |
1692 | EV_FREQUENT_CHECK; |
2121 | feed_reverse_done (EV_A_ EV_TIMER); |
1693 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1694 | } |
2122 | } |
1695 | } |
2123 | } |
1696 | |
2124 | |
1697 | #if EV_PERIODIC_ENABLE |
2125 | #if EV_PERIODIC_ENABLE |
1698 | void inline_size |
2126 | /* make periodics pending */ |
|
|
2127 | inline_size void |
1699 | periodics_reify (EV_P) |
2128 | periodics_reify (EV_P) |
1700 | { |
2129 | { |
1701 | EV_FREQUENT_CHECK; |
2130 | EV_FREQUENT_CHECK; |
1702 | |
2131 | |
1703 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2132 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1704 | { |
2133 | { |
1705 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2134 | int feed_count = 0; |
1706 | |
2135 | |
1707 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2136 | do |
1708 | |
|
|
1709 | /* first reschedule or stop timer */ |
|
|
1710 | if (w->reschedule_cb) |
|
|
1711 | { |
2137 | { |
|
|
2138 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2139 | |
|
|
2140 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2141 | |
|
|
2142 | /* first reschedule or stop timer */ |
|
|
2143 | if (w->reschedule_cb) |
|
|
2144 | { |
1712 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2145 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1713 | |
2146 | |
1714 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2147 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1715 | |
2148 | |
1716 | ANHE_at_cache (periodics [HEAP0]); |
2149 | ANHE_at_cache (periodics [HEAP0]); |
1717 | downheap (periodics, periodiccnt, HEAP0); |
2150 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2151 | } |
|
|
2152 | else if (w->interval) |
|
|
2153 | { |
|
|
2154 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2155 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2156 | /* this might happen because of floating point inexactness */ |
|
|
2157 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2158 | { |
|
|
2159 | ev_at (w) += w->interval; |
|
|
2160 | |
|
|
2161 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2162 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2163 | /* has effectively asked to get triggered more often than possible */ |
|
|
2164 | if (ev_at (w) < ev_rt_now) |
|
|
2165 | ev_at (w) = ev_rt_now; |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2169 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2170 | } |
|
|
2171 | else |
|
|
2172 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2173 | |
|
|
2174 | EV_FREQUENT_CHECK; |
|
|
2175 | feed_reverse (EV_A_ (W)w); |
1718 | } |
2176 | } |
1719 | else if (w->interval) |
2177 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1720 | { |
|
|
1721 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1722 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1723 | /* this might happen because of floating point inexactness */ |
|
|
1724 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1725 | { |
|
|
1726 | ev_at (w) += w->interval; |
|
|
1727 | |
2178 | |
1728 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1729 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1730 | /* has effectively asked to get triggered more often than possible */ |
|
|
1731 | if (ev_at (w) < ev_rt_now) |
|
|
1732 | ev_at (w) = ev_rt_now; |
|
|
1733 | } |
|
|
1734 | |
|
|
1735 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1736 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1737 | } |
|
|
1738 | else |
|
|
1739 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1740 | |
|
|
1741 | EV_FREQUENT_CHECK; |
|
|
1742 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2179 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1743 | } |
2180 | } |
1744 | } |
2181 | } |
1745 | |
2182 | |
|
|
2183 | /* simply recalculate all periodics */ |
|
|
2184 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1746 | static void noinline |
2185 | static void noinline |
1747 | periodics_reschedule (EV_P) |
2186 | periodics_reschedule (EV_P) |
1748 | { |
2187 | { |
1749 | int i; |
2188 | int i; |
1750 | |
2189 | |
… | |
… | |
1763 | |
2202 | |
1764 | reheap (periodics, periodiccnt); |
2203 | reheap (periodics, periodiccnt); |
1765 | } |
2204 | } |
1766 | #endif |
2205 | #endif |
1767 | |
2206 | |
1768 | void inline_speed |
2207 | /* adjust all timers by a given offset */ |
|
|
2208 | static void noinline |
|
|
2209 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2210 | { |
|
|
2211 | int i; |
|
|
2212 | |
|
|
2213 | for (i = 0; i < timercnt; ++i) |
|
|
2214 | { |
|
|
2215 | ANHE *he = timers + i + HEAP0; |
|
|
2216 | ANHE_w (*he)->at += adjust; |
|
|
2217 | ANHE_at_cache (*he); |
|
|
2218 | } |
|
|
2219 | } |
|
|
2220 | |
|
|
2221 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2222 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2223 | inline_speed void |
1769 | time_update (EV_P_ ev_tstamp max_block) |
2224 | time_update (EV_P_ ev_tstamp max_block) |
1770 | { |
2225 | { |
1771 | int i; |
|
|
1772 | |
|
|
1773 | #if EV_USE_MONOTONIC |
2226 | #if EV_USE_MONOTONIC |
1774 | if (expect_true (have_monotonic)) |
2227 | if (expect_true (have_monotonic)) |
1775 | { |
2228 | { |
|
|
2229 | int i; |
1776 | ev_tstamp odiff = rtmn_diff; |
2230 | ev_tstamp odiff = rtmn_diff; |
1777 | |
2231 | |
1778 | mn_now = get_clock (); |
2232 | mn_now = get_clock (); |
1779 | |
2233 | |
1780 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2234 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1806 | ev_rt_now = ev_time (); |
2260 | ev_rt_now = ev_time (); |
1807 | mn_now = get_clock (); |
2261 | mn_now = get_clock (); |
1808 | now_floor = mn_now; |
2262 | now_floor = mn_now; |
1809 | } |
2263 | } |
1810 | |
2264 | |
|
|
2265 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2266 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1811 | # if EV_PERIODIC_ENABLE |
2267 | # if EV_PERIODIC_ENABLE |
1812 | periodics_reschedule (EV_A); |
2268 | periodics_reschedule (EV_A); |
1813 | # endif |
2269 | # endif |
1814 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1815 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1816 | } |
2270 | } |
1817 | else |
2271 | else |
1818 | #endif |
2272 | #endif |
1819 | { |
2273 | { |
1820 | ev_rt_now = ev_time (); |
2274 | ev_rt_now = ev_time (); |
1821 | |
2275 | |
1822 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2276 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1823 | { |
2277 | { |
|
|
2278 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2279 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1824 | #if EV_PERIODIC_ENABLE |
2280 | #if EV_PERIODIC_ENABLE |
1825 | periodics_reschedule (EV_A); |
2281 | periodics_reschedule (EV_A); |
1826 | #endif |
2282 | #endif |
1827 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1828 | for (i = 0; i < timercnt; ++i) |
|
|
1829 | { |
|
|
1830 | ANHE *he = timers + i + HEAP0; |
|
|
1831 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1832 | ANHE_at_cache (*he); |
|
|
1833 | } |
|
|
1834 | } |
2283 | } |
1835 | |
2284 | |
1836 | mn_now = ev_rt_now; |
2285 | mn_now = ev_rt_now; |
1837 | } |
2286 | } |
1838 | } |
2287 | } |
1839 | |
2288 | |
1840 | void |
2289 | void |
1841 | ev_ref (EV_P) |
|
|
1842 | { |
|
|
1843 | ++activecnt; |
|
|
1844 | } |
|
|
1845 | |
|
|
1846 | void |
|
|
1847 | ev_unref (EV_P) |
|
|
1848 | { |
|
|
1849 | --activecnt; |
|
|
1850 | } |
|
|
1851 | |
|
|
1852 | static int loop_done; |
|
|
1853 | |
|
|
1854 | void |
|
|
1855 | ev_loop (EV_P_ int flags) |
2290 | ev_loop (EV_P_ int flags) |
1856 | { |
2291 | { |
|
|
2292 | #if EV_FEATURE_API |
|
|
2293 | ++loop_depth; |
|
|
2294 | #endif |
|
|
2295 | |
|
|
2296 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2297 | |
1857 | loop_done = EVUNLOOP_CANCEL; |
2298 | loop_done = EVUNLOOP_CANCEL; |
1858 | |
2299 | |
1859 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2300 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1860 | |
2301 | |
1861 | do |
2302 | do |
1862 | { |
2303 | { |
1863 | #if EV_VERIFY >= 2 |
2304 | #if EV_VERIFY >= 2 |
1864 | ev_loop_verify (EV_A); |
2305 | ev_verify (EV_A); |
1865 | #endif |
2306 | #endif |
1866 | |
2307 | |
1867 | #ifndef _WIN32 |
2308 | #ifndef _WIN32 |
1868 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2309 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1869 | if (expect_false (getpid () != curpid)) |
2310 | if (expect_false (getpid () != curpid)) |
… | |
… | |
1877 | /* we might have forked, so queue fork handlers */ |
2318 | /* we might have forked, so queue fork handlers */ |
1878 | if (expect_false (postfork)) |
2319 | if (expect_false (postfork)) |
1879 | if (forkcnt) |
2320 | if (forkcnt) |
1880 | { |
2321 | { |
1881 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2322 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1882 | call_pending (EV_A); |
2323 | EV_INVOKE_PENDING; |
1883 | } |
2324 | } |
1884 | #endif |
2325 | #endif |
1885 | |
2326 | |
|
|
2327 | #if EV_PREPARE_ENABLE |
1886 | /* queue prepare watchers (and execute them) */ |
2328 | /* queue prepare watchers (and execute them) */ |
1887 | if (expect_false (preparecnt)) |
2329 | if (expect_false (preparecnt)) |
1888 | { |
2330 | { |
1889 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2331 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1890 | call_pending (EV_A); |
2332 | EV_INVOKE_PENDING; |
1891 | } |
2333 | } |
|
|
2334 | #endif |
1892 | |
2335 | |
1893 | if (expect_false (!activecnt)) |
2336 | if (expect_false (loop_done)) |
1894 | break; |
2337 | break; |
1895 | |
2338 | |
1896 | /* we might have forked, so reify kernel state if necessary */ |
2339 | /* we might have forked, so reify kernel state if necessary */ |
1897 | if (expect_false (postfork)) |
2340 | if (expect_false (postfork)) |
1898 | loop_fork (EV_A); |
2341 | loop_fork (EV_A); |
… | |
… | |
1905 | ev_tstamp waittime = 0.; |
2348 | ev_tstamp waittime = 0.; |
1906 | ev_tstamp sleeptime = 0.; |
2349 | ev_tstamp sleeptime = 0.; |
1907 | |
2350 | |
1908 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2351 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1909 | { |
2352 | { |
|
|
2353 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2354 | ev_tstamp prev_mn_now = mn_now; |
|
|
2355 | |
1910 | /* update time to cancel out callback processing overhead */ |
2356 | /* update time to cancel out callback processing overhead */ |
1911 | time_update (EV_A_ 1e100); |
2357 | time_update (EV_A_ 1e100); |
1912 | |
2358 | |
1913 | waittime = MAX_BLOCKTIME; |
2359 | waittime = MAX_BLOCKTIME; |
1914 | |
2360 | |
… | |
… | |
1924 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2370 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1925 | if (waittime > to) waittime = to; |
2371 | if (waittime > to) waittime = to; |
1926 | } |
2372 | } |
1927 | #endif |
2373 | #endif |
1928 | |
2374 | |
|
|
2375 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1929 | if (expect_false (waittime < timeout_blocktime)) |
2376 | if (expect_false (waittime < timeout_blocktime)) |
1930 | waittime = timeout_blocktime; |
2377 | waittime = timeout_blocktime; |
1931 | |
2378 | |
1932 | sleeptime = waittime - backend_fudge; |
2379 | /* extra check because io_blocktime is commonly 0 */ |
1933 | |
|
|
1934 | if (expect_true (sleeptime > io_blocktime)) |
2380 | if (expect_false (io_blocktime)) |
1935 | sleeptime = io_blocktime; |
|
|
1936 | |
|
|
1937 | if (sleeptime) |
|
|
1938 | { |
2381 | { |
|
|
2382 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2383 | |
|
|
2384 | if (sleeptime > waittime - backend_fudge) |
|
|
2385 | sleeptime = waittime - backend_fudge; |
|
|
2386 | |
|
|
2387 | if (expect_true (sleeptime > 0.)) |
|
|
2388 | { |
1939 | ev_sleep (sleeptime); |
2389 | ev_sleep (sleeptime); |
1940 | waittime -= sleeptime; |
2390 | waittime -= sleeptime; |
|
|
2391 | } |
1941 | } |
2392 | } |
1942 | } |
2393 | } |
1943 | |
2394 | |
|
|
2395 | #if EV_FEATURE_API |
1944 | ++loop_count; |
2396 | ++loop_count; |
|
|
2397 | #endif |
|
|
2398 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1945 | backend_poll (EV_A_ waittime); |
2399 | backend_poll (EV_A_ waittime); |
|
|
2400 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1946 | |
2401 | |
1947 | /* update ev_rt_now, do magic */ |
2402 | /* update ev_rt_now, do magic */ |
1948 | time_update (EV_A_ waittime + sleeptime); |
2403 | time_update (EV_A_ waittime + sleeptime); |
1949 | } |
2404 | } |
1950 | |
2405 | |
… | |
… | |
1957 | #if EV_IDLE_ENABLE |
2412 | #if EV_IDLE_ENABLE |
1958 | /* queue idle watchers unless other events are pending */ |
2413 | /* queue idle watchers unless other events are pending */ |
1959 | idle_reify (EV_A); |
2414 | idle_reify (EV_A); |
1960 | #endif |
2415 | #endif |
1961 | |
2416 | |
|
|
2417 | #if EV_CHECK_ENABLE |
1962 | /* queue check watchers, to be executed first */ |
2418 | /* queue check watchers, to be executed first */ |
1963 | if (expect_false (checkcnt)) |
2419 | if (expect_false (checkcnt)) |
1964 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2420 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2421 | #endif |
1965 | |
2422 | |
1966 | call_pending (EV_A); |
2423 | EV_INVOKE_PENDING; |
1967 | } |
2424 | } |
1968 | while (expect_true ( |
2425 | while (expect_true ( |
1969 | activecnt |
2426 | activecnt |
1970 | && !loop_done |
2427 | && !loop_done |
1971 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2428 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1972 | )); |
2429 | )); |
1973 | |
2430 | |
1974 | if (loop_done == EVUNLOOP_ONE) |
2431 | if (loop_done == EVUNLOOP_ONE) |
1975 | loop_done = EVUNLOOP_CANCEL; |
2432 | loop_done = EVUNLOOP_CANCEL; |
|
|
2433 | |
|
|
2434 | #if EV_FEATURE_API |
|
|
2435 | --loop_depth; |
|
|
2436 | #endif |
1976 | } |
2437 | } |
1977 | |
2438 | |
1978 | void |
2439 | void |
1979 | ev_unloop (EV_P_ int how) |
2440 | ev_unloop (EV_P_ int how) |
1980 | { |
2441 | { |
1981 | loop_done = how; |
2442 | loop_done = how; |
1982 | } |
2443 | } |
1983 | |
2444 | |
|
|
2445 | void |
|
|
2446 | ev_ref (EV_P) |
|
|
2447 | { |
|
|
2448 | ++activecnt; |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | void |
|
|
2452 | ev_unref (EV_P) |
|
|
2453 | { |
|
|
2454 | --activecnt; |
|
|
2455 | } |
|
|
2456 | |
|
|
2457 | void |
|
|
2458 | ev_now_update (EV_P) |
|
|
2459 | { |
|
|
2460 | time_update (EV_A_ 1e100); |
|
|
2461 | } |
|
|
2462 | |
|
|
2463 | void |
|
|
2464 | ev_suspend (EV_P) |
|
|
2465 | { |
|
|
2466 | ev_now_update (EV_A); |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | void |
|
|
2470 | ev_resume (EV_P) |
|
|
2471 | { |
|
|
2472 | ev_tstamp mn_prev = mn_now; |
|
|
2473 | |
|
|
2474 | ev_now_update (EV_A); |
|
|
2475 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2476 | #if EV_PERIODIC_ENABLE |
|
|
2477 | /* TODO: really do this? */ |
|
|
2478 | periodics_reschedule (EV_A); |
|
|
2479 | #endif |
|
|
2480 | } |
|
|
2481 | |
1984 | /*****************************************************************************/ |
2482 | /*****************************************************************************/ |
|
|
2483 | /* singly-linked list management, used when the expected list length is short */ |
1985 | |
2484 | |
1986 | void inline_size |
2485 | inline_size void |
1987 | wlist_add (WL *head, WL elem) |
2486 | wlist_add (WL *head, WL elem) |
1988 | { |
2487 | { |
1989 | elem->next = *head; |
2488 | elem->next = *head; |
1990 | *head = elem; |
2489 | *head = elem; |
1991 | } |
2490 | } |
1992 | |
2491 | |
1993 | void inline_size |
2492 | inline_size void |
1994 | wlist_del (WL *head, WL elem) |
2493 | wlist_del (WL *head, WL elem) |
1995 | { |
2494 | { |
1996 | while (*head) |
2495 | while (*head) |
1997 | { |
2496 | { |
1998 | if (*head == elem) |
2497 | if (expect_true (*head == elem)) |
1999 | { |
2498 | { |
2000 | *head = elem->next; |
2499 | *head = elem->next; |
2001 | return; |
2500 | break; |
2002 | } |
2501 | } |
2003 | |
2502 | |
2004 | head = &(*head)->next; |
2503 | head = &(*head)->next; |
2005 | } |
2504 | } |
2006 | } |
2505 | } |
2007 | |
2506 | |
2008 | void inline_speed |
2507 | /* internal, faster, version of ev_clear_pending */ |
|
|
2508 | inline_speed void |
2009 | clear_pending (EV_P_ W w) |
2509 | clear_pending (EV_P_ W w) |
2010 | { |
2510 | { |
2011 | if (w->pending) |
2511 | if (w->pending) |
2012 | { |
2512 | { |
2013 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2513 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2014 | w->pending = 0; |
2514 | w->pending = 0; |
2015 | } |
2515 | } |
2016 | } |
2516 | } |
2017 | |
2517 | |
2018 | int |
2518 | int |
… | |
… | |
2022 | int pending = w_->pending; |
2522 | int pending = w_->pending; |
2023 | |
2523 | |
2024 | if (expect_true (pending)) |
2524 | if (expect_true (pending)) |
2025 | { |
2525 | { |
2026 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2526 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2527 | p->w = (W)&pending_w; |
2027 | w_->pending = 0; |
2528 | w_->pending = 0; |
2028 | p->w = 0; |
|
|
2029 | return p->events; |
2529 | return p->events; |
2030 | } |
2530 | } |
2031 | else |
2531 | else |
2032 | return 0; |
2532 | return 0; |
2033 | } |
2533 | } |
2034 | |
2534 | |
2035 | void inline_size |
2535 | inline_size void |
2036 | pri_adjust (EV_P_ W w) |
2536 | pri_adjust (EV_P_ W w) |
2037 | { |
2537 | { |
2038 | int pri = w->priority; |
2538 | int pri = ev_priority (w); |
2039 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2539 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2040 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2540 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2041 | w->priority = pri; |
2541 | ev_set_priority (w, pri); |
2042 | } |
2542 | } |
2043 | |
2543 | |
2044 | void inline_speed |
2544 | inline_speed void |
2045 | ev_start (EV_P_ W w, int active) |
2545 | ev_start (EV_P_ W w, int active) |
2046 | { |
2546 | { |
2047 | pri_adjust (EV_A_ w); |
2547 | pri_adjust (EV_A_ w); |
2048 | w->active = active; |
2548 | w->active = active; |
2049 | ev_ref (EV_A); |
2549 | ev_ref (EV_A); |
2050 | } |
2550 | } |
2051 | |
2551 | |
2052 | void inline_size |
2552 | inline_size void |
2053 | ev_stop (EV_P_ W w) |
2553 | ev_stop (EV_P_ W w) |
2054 | { |
2554 | { |
2055 | ev_unref (EV_A); |
2555 | ev_unref (EV_A); |
2056 | w->active = 0; |
2556 | w->active = 0; |
2057 | } |
2557 | } |
… | |
… | |
2064 | int fd = w->fd; |
2564 | int fd = w->fd; |
2065 | |
2565 | |
2066 | if (expect_false (ev_is_active (w))) |
2566 | if (expect_false (ev_is_active (w))) |
2067 | return; |
2567 | return; |
2068 | |
2568 | |
2069 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2569 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2570 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2070 | |
2571 | |
2071 | EV_FREQUENT_CHECK; |
2572 | EV_FREQUENT_CHECK; |
2072 | |
2573 | |
2073 | ev_start (EV_A_ (W)w, 1); |
2574 | ev_start (EV_A_ (W)w, 1); |
2074 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2575 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2075 | wlist_add (&anfds[fd].head, (WL)w); |
2576 | wlist_add (&anfds[fd].head, (WL)w); |
2076 | |
2577 | |
2077 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2578 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2078 | w->events &= ~EV_IOFDSET; |
2579 | w->events &= ~EV__IOFDSET; |
2079 | |
2580 | |
2080 | EV_FREQUENT_CHECK; |
2581 | EV_FREQUENT_CHECK; |
2081 | } |
2582 | } |
2082 | |
2583 | |
2083 | void noinline |
2584 | void noinline |
… | |
… | |
2085 | { |
2586 | { |
2086 | clear_pending (EV_A_ (W)w); |
2587 | clear_pending (EV_A_ (W)w); |
2087 | if (expect_false (!ev_is_active (w))) |
2588 | if (expect_false (!ev_is_active (w))) |
2088 | return; |
2589 | return; |
2089 | |
2590 | |
2090 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2591 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2091 | |
2592 | |
2092 | EV_FREQUENT_CHECK; |
2593 | EV_FREQUENT_CHECK; |
2093 | |
2594 | |
2094 | wlist_del (&anfds[w->fd].head, (WL)w); |
2595 | wlist_del (&anfds[w->fd].head, (WL)w); |
2095 | ev_stop (EV_A_ (W)w); |
2596 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2105 | if (expect_false (ev_is_active (w))) |
2606 | if (expect_false (ev_is_active (w))) |
2106 | return; |
2607 | return; |
2107 | |
2608 | |
2108 | ev_at (w) += mn_now; |
2609 | ev_at (w) += mn_now; |
2109 | |
2610 | |
2110 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2611 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2111 | |
2612 | |
2112 | EV_FREQUENT_CHECK; |
2613 | EV_FREQUENT_CHECK; |
2113 | |
2614 | |
2114 | ++timercnt; |
2615 | ++timercnt; |
2115 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2616 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2118 | ANHE_at_cache (timers [ev_active (w)]); |
2619 | ANHE_at_cache (timers [ev_active (w)]); |
2119 | upheap (timers, ev_active (w)); |
2620 | upheap (timers, ev_active (w)); |
2120 | |
2621 | |
2121 | EV_FREQUENT_CHECK; |
2622 | EV_FREQUENT_CHECK; |
2122 | |
2623 | |
2123 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2624 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2124 | } |
2625 | } |
2125 | |
2626 | |
2126 | void noinline |
2627 | void noinline |
2127 | ev_timer_stop (EV_P_ ev_timer *w) |
2628 | ev_timer_stop (EV_P_ ev_timer *w) |
2128 | { |
2629 | { |
… | |
… | |
2133 | EV_FREQUENT_CHECK; |
2634 | EV_FREQUENT_CHECK; |
2134 | |
2635 | |
2135 | { |
2636 | { |
2136 | int active = ev_active (w); |
2637 | int active = ev_active (w); |
2137 | |
2638 | |
2138 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2639 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2139 | |
2640 | |
2140 | --timercnt; |
2641 | --timercnt; |
2141 | |
2642 | |
2142 | if (expect_true (active < timercnt + HEAP0)) |
2643 | if (expect_true (active < timercnt + HEAP0)) |
2143 | { |
2644 | { |
2144 | timers [active] = timers [timercnt + HEAP0]; |
2645 | timers [active] = timers [timercnt + HEAP0]; |
2145 | adjustheap (timers, timercnt, active); |
2646 | adjustheap (timers, timercnt, active); |
2146 | } |
2647 | } |
2147 | } |
2648 | } |
2148 | |
2649 | |
2149 | EV_FREQUENT_CHECK; |
|
|
2150 | |
|
|
2151 | ev_at (w) -= mn_now; |
2650 | ev_at (w) -= mn_now; |
2152 | |
2651 | |
2153 | ev_stop (EV_A_ (W)w); |
2652 | ev_stop (EV_A_ (W)w); |
|
|
2653 | |
|
|
2654 | EV_FREQUENT_CHECK; |
2154 | } |
2655 | } |
2155 | |
2656 | |
2156 | void noinline |
2657 | void noinline |
2157 | ev_timer_again (EV_P_ ev_timer *w) |
2658 | ev_timer_again (EV_P_ ev_timer *w) |
2158 | { |
2659 | { |
… | |
… | |
2176 | } |
2677 | } |
2177 | |
2678 | |
2178 | EV_FREQUENT_CHECK; |
2679 | EV_FREQUENT_CHECK; |
2179 | } |
2680 | } |
2180 | |
2681 | |
|
|
2682 | ev_tstamp |
|
|
2683 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2684 | { |
|
|
2685 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2686 | } |
|
|
2687 | |
2181 | #if EV_PERIODIC_ENABLE |
2688 | #if EV_PERIODIC_ENABLE |
2182 | void noinline |
2689 | void noinline |
2183 | ev_periodic_start (EV_P_ ev_periodic *w) |
2690 | ev_periodic_start (EV_P_ ev_periodic *w) |
2184 | { |
2691 | { |
2185 | if (expect_false (ev_is_active (w))) |
2692 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2187 | |
2694 | |
2188 | if (w->reschedule_cb) |
2695 | if (w->reschedule_cb) |
2189 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2696 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2190 | else if (w->interval) |
2697 | else if (w->interval) |
2191 | { |
2698 | { |
2192 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2699 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2193 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2700 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2194 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2701 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2195 | } |
2702 | } |
2196 | else |
2703 | else |
2197 | ev_at (w) = w->offset; |
2704 | ev_at (w) = w->offset; |
… | |
… | |
2205 | ANHE_at_cache (periodics [ev_active (w)]); |
2712 | ANHE_at_cache (periodics [ev_active (w)]); |
2206 | upheap (periodics, ev_active (w)); |
2713 | upheap (periodics, ev_active (w)); |
2207 | |
2714 | |
2208 | EV_FREQUENT_CHECK; |
2715 | EV_FREQUENT_CHECK; |
2209 | |
2716 | |
2210 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2717 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2211 | } |
2718 | } |
2212 | |
2719 | |
2213 | void noinline |
2720 | void noinline |
2214 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2721 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2215 | { |
2722 | { |
… | |
… | |
2220 | EV_FREQUENT_CHECK; |
2727 | EV_FREQUENT_CHECK; |
2221 | |
2728 | |
2222 | { |
2729 | { |
2223 | int active = ev_active (w); |
2730 | int active = ev_active (w); |
2224 | |
2731 | |
2225 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2732 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2226 | |
2733 | |
2227 | --periodiccnt; |
2734 | --periodiccnt; |
2228 | |
2735 | |
2229 | if (expect_true (active < periodiccnt + HEAP0)) |
2736 | if (expect_true (active < periodiccnt + HEAP0)) |
2230 | { |
2737 | { |
2231 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2738 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2232 | adjustheap (periodics, periodiccnt, active); |
2739 | adjustheap (periodics, periodiccnt, active); |
2233 | } |
2740 | } |
2234 | } |
2741 | } |
2235 | |
2742 | |
2236 | EV_FREQUENT_CHECK; |
|
|
2237 | |
|
|
2238 | ev_stop (EV_A_ (W)w); |
2743 | ev_stop (EV_A_ (W)w); |
|
|
2744 | |
|
|
2745 | EV_FREQUENT_CHECK; |
2239 | } |
2746 | } |
2240 | |
2747 | |
2241 | void noinline |
2748 | void noinline |
2242 | ev_periodic_again (EV_P_ ev_periodic *w) |
2749 | ev_periodic_again (EV_P_ ev_periodic *w) |
2243 | { |
2750 | { |
… | |
… | |
2249 | |
2756 | |
2250 | #ifndef SA_RESTART |
2757 | #ifndef SA_RESTART |
2251 | # define SA_RESTART 0 |
2758 | # define SA_RESTART 0 |
2252 | #endif |
2759 | #endif |
2253 | |
2760 | |
|
|
2761 | #if EV_SIGNAL_ENABLE |
|
|
2762 | |
2254 | void noinline |
2763 | void noinline |
2255 | ev_signal_start (EV_P_ ev_signal *w) |
2764 | ev_signal_start (EV_P_ ev_signal *w) |
2256 | { |
2765 | { |
2257 | #if EV_MULTIPLICITY |
|
|
2258 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2259 | #endif |
|
|
2260 | if (expect_false (ev_is_active (w))) |
2766 | if (expect_false (ev_is_active (w))) |
2261 | return; |
2767 | return; |
2262 | |
2768 | |
2263 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2769 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2264 | |
2770 | |
2265 | evpipe_init (EV_A); |
2771 | #if EV_MULTIPLICITY |
|
|
2772 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2773 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2266 | |
2774 | |
2267 | EV_FREQUENT_CHECK; |
2775 | signals [w->signum - 1].loop = EV_A; |
|
|
2776 | #endif |
2268 | |
2777 | |
|
|
2778 | EV_FREQUENT_CHECK; |
|
|
2779 | |
|
|
2780 | #if EV_USE_SIGNALFD |
|
|
2781 | if (sigfd == -2) |
2269 | { |
2782 | { |
2270 | #ifndef _WIN32 |
2783 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2271 | sigset_t full, prev; |
2784 | if (sigfd < 0 && errno == EINVAL) |
2272 | sigfillset (&full); |
2785 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2273 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2274 | #endif |
|
|
2275 | |
2786 | |
2276 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2787 | if (sigfd >= 0) |
|
|
2788 | { |
|
|
2789 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2277 | |
2790 | |
2278 | #ifndef _WIN32 |
2791 | sigemptyset (&sigfd_set); |
2279 | sigprocmask (SIG_SETMASK, &prev, 0); |
2792 | |
2280 | #endif |
2793 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2794 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2795 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2796 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2797 | } |
2281 | } |
2798 | } |
|
|
2799 | |
|
|
2800 | if (sigfd >= 0) |
|
|
2801 | { |
|
|
2802 | /* TODO: check .head */ |
|
|
2803 | sigaddset (&sigfd_set, w->signum); |
|
|
2804 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2805 | |
|
|
2806 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2807 | } |
|
|
2808 | #endif |
2282 | |
2809 | |
2283 | ev_start (EV_A_ (W)w, 1); |
2810 | ev_start (EV_A_ (W)w, 1); |
2284 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2811 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2285 | |
2812 | |
2286 | if (!((WL)w)->next) |
2813 | if (!((WL)w)->next) |
|
|
2814 | # if EV_USE_SIGNALFD |
|
|
2815 | if (sigfd < 0) /*TODO*/ |
|
|
2816 | # endif |
2287 | { |
2817 | { |
2288 | #if _WIN32 |
2818 | # ifdef _WIN32 |
|
|
2819 | evpipe_init (EV_A); |
|
|
2820 | |
2289 | signal (w->signum, ev_sighandler); |
2821 | signal (w->signum, ev_sighandler); |
2290 | #else |
2822 | # else |
2291 | struct sigaction sa; |
2823 | struct sigaction sa; |
|
|
2824 | |
|
|
2825 | evpipe_init (EV_A); |
|
|
2826 | |
2292 | sa.sa_handler = ev_sighandler; |
2827 | sa.sa_handler = ev_sighandler; |
2293 | sigfillset (&sa.sa_mask); |
2828 | sigfillset (&sa.sa_mask); |
2294 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2829 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2295 | sigaction (w->signum, &sa, 0); |
2830 | sigaction (w->signum, &sa, 0); |
|
|
2831 | |
|
|
2832 | sigemptyset (&sa.sa_mask); |
|
|
2833 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2834 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2296 | #endif |
2835 | #endif |
2297 | } |
2836 | } |
2298 | |
2837 | |
2299 | EV_FREQUENT_CHECK; |
2838 | EV_FREQUENT_CHECK; |
2300 | } |
2839 | } |
2301 | |
2840 | |
2302 | void noinline |
2841 | void noinline |
… | |
… | |
2310 | |
2849 | |
2311 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2850 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2312 | ev_stop (EV_A_ (W)w); |
2851 | ev_stop (EV_A_ (W)w); |
2313 | |
2852 | |
2314 | if (!signals [w->signum - 1].head) |
2853 | if (!signals [w->signum - 1].head) |
|
|
2854 | { |
|
|
2855 | #if EV_MULTIPLICITY |
|
|
2856 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2857 | #endif |
|
|
2858 | #if EV_USE_SIGNALFD |
|
|
2859 | if (sigfd >= 0) |
|
|
2860 | { |
|
|
2861 | sigset_t ss; |
|
|
2862 | |
|
|
2863 | sigemptyset (&ss); |
|
|
2864 | sigaddset (&ss, w->signum); |
|
|
2865 | sigdelset (&sigfd_set, w->signum); |
|
|
2866 | |
|
|
2867 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2868 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2869 | } |
|
|
2870 | else |
|
|
2871 | #endif |
2315 | signal (w->signum, SIG_DFL); |
2872 | signal (w->signum, SIG_DFL); |
|
|
2873 | } |
2316 | |
2874 | |
2317 | EV_FREQUENT_CHECK; |
2875 | EV_FREQUENT_CHECK; |
2318 | } |
2876 | } |
|
|
2877 | |
|
|
2878 | #endif |
|
|
2879 | |
|
|
2880 | #if EV_CHILD_ENABLE |
2319 | |
2881 | |
2320 | void |
2882 | void |
2321 | ev_child_start (EV_P_ ev_child *w) |
2883 | ev_child_start (EV_P_ ev_child *w) |
2322 | { |
2884 | { |
2323 | #if EV_MULTIPLICITY |
2885 | #if EV_MULTIPLICITY |
2324 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2886 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2325 | #endif |
2887 | #endif |
2326 | if (expect_false (ev_is_active (w))) |
2888 | if (expect_false (ev_is_active (w))) |
2327 | return; |
2889 | return; |
2328 | |
2890 | |
2329 | EV_FREQUENT_CHECK; |
2891 | EV_FREQUENT_CHECK; |
2330 | |
2892 | |
2331 | ev_start (EV_A_ (W)w, 1); |
2893 | ev_start (EV_A_ (W)w, 1); |
2332 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2894 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2333 | |
2895 | |
2334 | EV_FREQUENT_CHECK; |
2896 | EV_FREQUENT_CHECK; |
2335 | } |
2897 | } |
2336 | |
2898 | |
2337 | void |
2899 | void |
… | |
… | |
2341 | if (expect_false (!ev_is_active (w))) |
2903 | if (expect_false (!ev_is_active (w))) |
2342 | return; |
2904 | return; |
2343 | |
2905 | |
2344 | EV_FREQUENT_CHECK; |
2906 | EV_FREQUENT_CHECK; |
2345 | |
2907 | |
2346 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2908 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2347 | ev_stop (EV_A_ (W)w); |
2909 | ev_stop (EV_A_ (W)w); |
2348 | |
2910 | |
2349 | EV_FREQUENT_CHECK; |
2911 | EV_FREQUENT_CHECK; |
2350 | } |
2912 | } |
|
|
2913 | |
|
|
2914 | #endif |
2351 | |
2915 | |
2352 | #if EV_STAT_ENABLE |
2916 | #if EV_STAT_ENABLE |
2353 | |
2917 | |
2354 | # ifdef _WIN32 |
2918 | # ifdef _WIN32 |
2355 | # undef lstat |
2919 | # undef lstat |
2356 | # define lstat(a,b) _stati64 (a,b) |
2920 | # define lstat(a,b) _stati64 (a,b) |
2357 | # endif |
2921 | # endif |
2358 | |
2922 | |
2359 | #define DEF_STAT_INTERVAL 5.0074891 |
2923 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2924 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2360 | #define MIN_STAT_INTERVAL 0.1074891 |
2925 | #define MIN_STAT_INTERVAL 0.1074891 |
2361 | |
2926 | |
2362 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2927 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2363 | |
2928 | |
2364 | #if EV_USE_INOTIFY |
2929 | #if EV_USE_INOTIFY |
2365 | # define EV_INOTIFY_BUFSIZE 8192 |
2930 | |
|
|
2931 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2932 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2366 | |
2933 | |
2367 | static void noinline |
2934 | static void noinline |
2368 | infy_add (EV_P_ ev_stat *w) |
2935 | infy_add (EV_P_ ev_stat *w) |
2369 | { |
2936 | { |
2370 | 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); |
2937 | 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); |
2371 | |
2938 | |
2372 | if (w->wd < 0) |
2939 | if (w->wd >= 0) |
|
|
2940 | { |
|
|
2941 | struct statfs sfs; |
|
|
2942 | |
|
|
2943 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2944 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2945 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2946 | |
|
|
2947 | if (!fs_2625) |
|
|
2948 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2949 | else if (!statfs (w->path, &sfs) |
|
|
2950 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2951 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2952 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2953 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2954 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2955 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2956 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2957 | else |
|
|
2958 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2373 | { |
2959 | } |
2374 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2960 | else |
|
|
2961 | { |
|
|
2962 | /* can't use inotify, continue to stat */ |
|
|
2963 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2375 | |
2964 | |
2376 | /* monitor some parent directory for speedup hints */ |
2965 | /* if path is not there, monitor some parent directory for speedup hints */ |
2377 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2966 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2378 | /* but an efficiency issue only */ |
2967 | /* but an efficiency issue only */ |
2379 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2968 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2380 | { |
2969 | { |
2381 | char path [4096]; |
2970 | char path [4096]; |
2382 | strcpy (path, w->path); |
2971 | strcpy (path, w->path); |
… | |
… | |
2386 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2975 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2387 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2976 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2388 | |
2977 | |
2389 | char *pend = strrchr (path, '/'); |
2978 | char *pend = strrchr (path, '/'); |
2390 | |
2979 | |
2391 | if (!pend) |
2980 | if (!pend || pend == path) |
2392 | break; /* whoops, no '/', complain to your admin */ |
2981 | break; |
2393 | |
2982 | |
2394 | *pend = 0; |
2983 | *pend = 0; |
2395 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2984 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2396 | } |
2985 | } |
2397 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2986 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2398 | } |
2987 | } |
2399 | } |
2988 | } |
2400 | else |
|
|
2401 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2402 | |
2989 | |
2403 | if (w->wd >= 0) |
2990 | if (w->wd >= 0) |
2404 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2991 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
2992 | |
|
|
2993 | /* now re-arm timer, if required */ |
|
|
2994 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2995 | ev_timer_again (EV_A_ &w->timer); |
|
|
2996 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2405 | } |
2997 | } |
2406 | |
2998 | |
2407 | static void noinline |
2999 | static void noinline |
2408 | infy_del (EV_P_ ev_stat *w) |
3000 | infy_del (EV_P_ ev_stat *w) |
2409 | { |
3001 | { |
… | |
… | |
2412 | |
3004 | |
2413 | if (wd < 0) |
3005 | if (wd < 0) |
2414 | return; |
3006 | return; |
2415 | |
3007 | |
2416 | w->wd = -2; |
3008 | w->wd = -2; |
2417 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3009 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2418 | wlist_del (&fs_hash [slot].head, (WL)w); |
3010 | wlist_del (&fs_hash [slot].head, (WL)w); |
2419 | |
3011 | |
2420 | /* remove this watcher, if others are watching it, they will rearm */ |
3012 | /* remove this watcher, if others are watching it, they will rearm */ |
2421 | inotify_rm_watch (fs_fd, wd); |
3013 | inotify_rm_watch (fs_fd, wd); |
2422 | } |
3014 | } |
2423 | |
3015 | |
2424 | static void noinline |
3016 | static void noinline |
2425 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3017 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2426 | { |
3018 | { |
2427 | if (slot < 0) |
3019 | if (slot < 0) |
2428 | /* overflow, need to check for all hahs slots */ |
3020 | /* overflow, need to check for all hash slots */ |
2429 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3021 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2430 | infy_wd (EV_A_ slot, wd, ev); |
3022 | infy_wd (EV_A_ slot, wd, ev); |
2431 | else |
3023 | else |
2432 | { |
3024 | { |
2433 | WL w_; |
3025 | WL w_; |
2434 | |
3026 | |
2435 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3027 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2436 | { |
3028 | { |
2437 | ev_stat *w = (ev_stat *)w_; |
3029 | ev_stat *w = (ev_stat *)w_; |
2438 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3030 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2439 | |
3031 | |
2440 | if (w->wd == wd || wd == -1) |
3032 | if (w->wd == wd || wd == -1) |
2441 | { |
3033 | { |
2442 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3034 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2443 | { |
3035 | { |
|
|
3036 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2444 | w->wd = -1; |
3037 | w->wd = -1; |
2445 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3038 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2446 | } |
3039 | } |
2447 | |
3040 | |
2448 | stat_timer_cb (EV_A_ &w->timer, 0); |
3041 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2453 | |
3046 | |
2454 | static void |
3047 | static void |
2455 | infy_cb (EV_P_ ev_io *w, int revents) |
3048 | infy_cb (EV_P_ ev_io *w, int revents) |
2456 | { |
3049 | { |
2457 | char buf [EV_INOTIFY_BUFSIZE]; |
3050 | char buf [EV_INOTIFY_BUFSIZE]; |
2458 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2459 | int ofs; |
3051 | int ofs; |
2460 | int len = read (fs_fd, buf, sizeof (buf)); |
3052 | int len = read (fs_fd, buf, sizeof (buf)); |
2461 | |
3053 | |
2462 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3054 | for (ofs = 0; ofs < len; ) |
|
|
3055 | { |
|
|
3056 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2463 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3057 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3058 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3059 | } |
2464 | } |
3060 | } |
2465 | |
3061 | |
2466 | void inline_size |
3062 | inline_size unsigned int |
|
|
3063 | ev_linux_version (void) |
|
|
3064 | { |
|
|
3065 | struct utsname buf; |
|
|
3066 | unsigned int v; |
|
|
3067 | int i; |
|
|
3068 | char *p = buf.release; |
|
|
3069 | |
|
|
3070 | if (uname (&buf)) |
|
|
3071 | return 0; |
|
|
3072 | |
|
|
3073 | for (i = 3+1; --i; ) |
|
|
3074 | { |
|
|
3075 | unsigned int c = 0; |
|
|
3076 | |
|
|
3077 | for (;;) |
|
|
3078 | { |
|
|
3079 | if (*p >= '0' && *p <= '9') |
|
|
3080 | c = c * 10 + *p++ - '0'; |
|
|
3081 | else |
|
|
3082 | { |
|
|
3083 | p += *p == '.'; |
|
|
3084 | break; |
|
|
3085 | } |
|
|
3086 | } |
|
|
3087 | |
|
|
3088 | v = (v << 8) | c; |
|
|
3089 | } |
|
|
3090 | |
|
|
3091 | return v; |
|
|
3092 | } |
|
|
3093 | |
|
|
3094 | inline_size void |
|
|
3095 | ev_check_2625 (EV_P) |
|
|
3096 | { |
|
|
3097 | /* kernels < 2.6.25 are borked |
|
|
3098 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3099 | */ |
|
|
3100 | if (ev_linux_version () < 0x020619) |
|
|
3101 | return; |
|
|
3102 | |
|
|
3103 | fs_2625 = 1; |
|
|
3104 | } |
|
|
3105 | |
|
|
3106 | inline_size int |
|
|
3107 | infy_newfd (void) |
|
|
3108 | { |
|
|
3109 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3110 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3111 | if (fd >= 0) |
|
|
3112 | return fd; |
|
|
3113 | #endif |
|
|
3114 | return inotify_init (); |
|
|
3115 | } |
|
|
3116 | |
|
|
3117 | inline_size void |
2467 | infy_init (EV_P) |
3118 | infy_init (EV_P) |
2468 | { |
3119 | { |
2469 | if (fs_fd != -2) |
3120 | if (fs_fd != -2) |
2470 | return; |
3121 | return; |
2471 | |
3122 | |
|
|
3123 | fs_fd = -1; |
|
|
3124 | |
|
|
3125 | ev_check_2625 (EV_A); |
|
|
3126 | |
2472 | fs_fd = inotify_init (); |
3127 | fs_fd = infy_newfd (); |
2473 | |
3128 | |
2474 | if (fs_fd >= 0) |
3129 | if (fs_fd >= 0) |
2475 | { |
3130 | { |
|
|
3131 | fd_intern (fs_fd); |
2476 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3132 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2477 | ev_set_priority (&fs_w, EV_MAXPRI); |
3133 | ev_set_priority (&fs_w, EV_MAXPRI); |
2478 | ev_io_start (EV_A_ &fs_w); |
3134 | ev_io_start (EV_A_ &fs_w); |
|
|
3135 | ev_unref (EV_A); |
2479 | } |
3136 | } |
2480 | } |
3137 | } |
2481 | |
3138 | |
2482 | void inline_size |
3139 | inline_size void |
2483 | infy_fork (EV_P) |
3140 | infy_fork (EV_P) |
2484 | { |
3141 | { |
2485 | int slot; |
3142 | int slot; |
2486 | |
3143 | |
2487 | if (fs_fd < 0) |
3144 | if (fs_fd < 0) |
2488 | return; |
3145 | return; |
2489 | |
3146 | |
|
|
3147 | ev_ref (EV_A); |
|
|
3148 | ev_io_stop (EV_A_ &fs_w); |
2490 | close (fs_fd); |
3149 | close (fs_fd); |
2491 | fs_fd = inotify_init (); |
3150 | fs_fd = infy_newfd (); |
2492 | |
3151 | |
|
|
3152 | if (fs_fd >= 0) |
|
|
3153 | { |
|
|
3154 | fd_intern (fs_fd); |
|
|
3155 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3156 | ev_io_start (EV_A_ &fs_w); |
|
|
3157 | ev_unref (EV_A); |
|
|
3158 | } |
|
|
3159 | |
2493 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3160 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2494 | { |
3161 | { |
2495 | WL w_ = fs_hash [slot].head; |
3162 | WL w_ = fs_hash [slot].head; |
2496 | fs_hash [slot].head = 0; |
3163 | fs_hash [slot].head = 0; |
2497 | |
3164 | |
2498 | while (w_) |
3165 | while (w_) |
… | |
… | |
2503 | w->wd = -1; |
3170 | w->wd = -1; |
2504 | |
3171 | |
2505 | if (fs_fd >= 0) |
3172 | if (fs_fd >= 0) |
2506 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3173 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2507 | else |
3174 | else |
|
|
3175 | { |
|
|
3176 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3177 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2508 | ev_timer_start (EV_A_ &w->timer); |
3178 | ev_timer_again (EV_A_ &w->timer); |
|
|
3179 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3180 | } |
2509 | } |
3181 | } |
2510 | |
|
|
2511 | } |
3182 | } |
2512 | } |
3183 | } |
2513 | |
3184 | |
|
|
3185 | #endif |
|
|
3186 | |
|
|
3187 | #ifdef _WIN32 |
|
|
3188 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3189 | #else |
|
|
3190 | # define EV_LSTAT(p,b) lstat (p, b) |
2514 | #endif |
3191 | #endif |
2515 | |
3192 | |
2516 | void |
3193 | void |
2517 | ev_stat_stat (EV_P_ ev_stat *w) |
3194 | ev_stat_stat (EV_P_ ev_stat *w) |
2518 | { |
3195 | { |
… | |
… | |
2525 | static void noinline |
3202 | static void noinline |
2526 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3203 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2527 | { |
3204 | { |
2528 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3205 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2529 | |
3206 | |
2530 | /* we copy this here each the time so that */ |
3207 | ev_statdata prev = w->attr; |
2531 | /* prev has the old value when the callback gets invoked */ |
|
|
2532 | w->prev = w->attr; |
|
|
2533 | ev_stat_stat (EV_A_ w); |
3208 | ev_stat_stat (EV_A_ w); |
2534 | |
3209 | |
2535 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3210 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2536 | if ( |
3211 | if ( |
2537 | w->prev.st_dev != w->attr.st_dev |
3212 | prev.st_dev != w->attr.st_dev |
2538 | || w->prev.st_ino != w->attr.st_ino |
3213 | || prev.st_ino != w->attr.st_ino |
2539 | || w->prev.st_mode != w->attr.st_mode |
3214 | || prev.st_mode != w->attr.st_mode |
2540 | || w->prev.st_nlink != w->attr.st_nlink |
3215 | || prev.st_nlink != w->attr.st_nlink |
2541 | || w->prev.st_uid != w->attr.st_uid |
3216 | || prev.st_uid != w->attr.st_uid |
2542 | || w->prev.st_gid != w->attr.st_gid |
3217 | || prev.st_gid != w->attr.st_gid |
2543 | || w->prev.st_rdev != w->attr.st_rdev |
3218 | || prev.st_rdev != w->attr.st_rdev |
2544 | || w->prev.st_size != w->attr.st_size |
3219 | || prev.st_size != w->attr.st_size |
2545 | || w->prev.st_atime != w->attr.st_atime |
3220 | || prev.st_atime != w->attr.st_atime |
2546 | || w->prev.st_mtime != w->attr.st_mtime |
3221 | || prev.st_mtime != w->attr.st_mtime |
2547 | || w->prev.st_ctime != w->attr.st_ctime |
3222 | || prev.st_ctime != w->attr.st_ctime |
2548 | ) { |
3223 | ) { |
|
|
3224 | /* we only update w->prev on actual differences */ |
|
|
3225 | /* in case we test more often than invoke the callback, */ |
|
|
3226 | /* to ensure that prev is always different to attr */ |
|
|
3227 | w->prev = prev; |
|
|
3228 | |
2549 | #if EV_USE_INOTIFY |
3229 | #if EV_USE_INOTIFY |
|
|
3230 | if (fs_fd >= 0) |
|
|
3231 | { |
2550 | infy_del (EV_A_ w); |
3232 | infy_del (EV_A_ w); |
2551 | infy_add (EV_A_ w); |
3233 | infy_add (EV_A_ w); |
2552 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3234 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3235 | } |
2553 | #endif |
3236 | #endif |
2554 | |
3237 | |
2555 | ev_feed_event (EV_A_ w, EV_STAT); |
3238 | ev_feed_event (EV_A_ w, EV_STAT); |
2556 | } |
3239 | } |
2557 | } |
3240 | } |
… | |
… | |
2560 | ev_stat_start (EV_P_ ev_stat *w) |
3243 | ev_stat_start (EV_P_ ev_stat *w) |
2561 | { |
3244 | { |
2562 | if (expect_false (ev_is_active (w))) |
3245 | if (expect_false (ev_is_active (w))) |
2563 | return; |
3246 | return; |
2564 | |
3247 | |
2565 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2566 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2567 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2568 | |
|
|
2569 | ev_stat_stat (EV_A_ w); |
3248 | ev_stat_stat (EV_A_ w); |
2570 | |
3249 | |
|
|
3250 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2571 | if (w->interval < MIN_STAT_INTERVAL) |
3251 | w->interval = MIN_STAT_INTERVAL; |
2572 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2573 | |
3252 | |
2574 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3253 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2575 | ev_set_priority (&w->timer, ev_priority (w)); |
3254 | ev_set_priority (&w->timer, ev_priority (w)); |
2576 | |
3255 | |
2577 | #if EV_USE_INOTIFY |
3256 | #if EV_USE_INOTIFY |
2578 | infy_init (EV_A); |
3257 | infy_init (EV_A); |
2579 | |
3258 | |
2580 | if (fs_fd >= 0) |
3259 | if (fs_fd >= 0) |
2581 | infy_add (EV_A_ w); |
3260 | infy_add (EV_A_ w); |
2582 | else |
3261 | else |
2583 | #endif |
3262 | #endif |
|
|
3263 | { |
2584 | ev_timer_start (EV_A_ &w->timer); |
3264 | ev_timer_again (EV_A_ &w->timer); |
|
|
3265 | ev_unref (EV_A); |
|
|
3266 | } |
2585 | |
3267 | |
2586 | ev_start (EV_A_ (W)w, 1); |
3268 | ev_start (EV_A_ (W)w, 1); |
2587 | |
3269 | |
2588 | EV_FREQUENT_CHECK; |
3270 | EV_FREQUENT_CHECK; |
2589 | } |
3271 | } |
… | |
… | |
2598 | EV_FREQUENT_CHECK; |
3280 | EV_FREQUENT_CHECK; |
2599 | |
3281 | |
2600 | #if EV_USE_INOTIFY |
3282 | #if EV_USE_INOTIFY |
2601 | infy_del (EV_A_ w); |
3283 | infy_del (EV_A_ w); |
2602 | #endif |
3284 | #endif |
|
|
3285 | |
|
|
3286 | if (ev_is_active (&w->timer)) |
|
|
3287 | { |
|
|
3288 | ev_ref (EV_A); |
2603 | ev_timer_stop (EV_A_ &w->timer); |
3289 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3290 | } |
2604 | |
3291 | |
2605 | ev_stop (EV_A_ (W)w); |
3292 | ev_stop (EV_A_ (W)w); |
2606 | |
3293 | |
2607 | EV_FREQUENT_CHECK; |
3294 | EV_FREQUENT_CHECK; |
2608 | } |
3295 | } |
… | |
… | |
2653 | |
3340 | |
2654 | EV_FREQUENT_CHECK; |
3341 | EV_FREQUENT_CHECK; |
2655 | } |
3342 | } |
2656 | #endif |
3343 | #endif |
2657 | |
3344 | |
|
|
3345 | #if EV_PREPARE_ENABLE |
2658 | void |
3346 | void |
2659 | ev_prepare_start (EV_P_ ev_prepare *w) |
3347 | ev_prepare_start (EV_P_ ev_prepare *w) |
2660 | { |
3348 | { |
2661 | if (expect_false (ev_is_active (w))) |
3349 | if (expect_false (ev_is_active (w))) |
2662 | return; |
3350 | return; |
… | |
… | |
2688 | |
3376 | |
2689 | ev_stop (EV_A_ (W)w); |
3377 | ev_stop (EV_A_ (W)w); |
2690 | |
3378 | |
2691 | EV_FREQUENT_CHECK; |
3379 | EV_FREQUENT_CHECK; |
2692 | } |
3380 | } |
|
|
3381 | #endif |
2693 | |
3382 | |
|
|
3383 | #if EV_CHECK_ENABLE |
2694 | void |
3384 | void |
2695 | ev_check_start (EV_P_ ev_check *w) |
3385 | ev_check_start (EV_P_ ev_check *w) |
2696 | { |
3386 | { |
2697 | if (expect_false (ev_is_active (w))) |
3387 | if (expect_false (ev_is_active (w))) |
2698 | return; |
3388 | return; |
… | |
… | |
2724 | |
3414 | |
2725 | ev_stop (EV_A_ (W)w); |
3415 | ev_stop (EV_A_ (W)w); |
2726 | |
3416 | |
2727 | EV_FREQUENT_CHECK; |
3417 | EV_FREQUENT_CHECK; |
2728 | } |
3418 | } |
|
|
3419 | #endif |
2729 | |
3420 | |
2730 | #if EV_EMBED_ENABLE |
3421 | #if EV_EMBED_ENABLE |
2731 | void noinline |
3422 | void noinline |
2732 | ev_embed_sweep (EV_P_ ev_embed *w) |
3423 | ev_embed_sweep (EV_P_ ev_embed *w) |
2733 | { |
3424 | { |
… | |
… | |
2749 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3440 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2750 | { |
3441 | { |
2751 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3442 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2752 | |
3443 | |
2753 | { |
3444 | { |
2754 | struct ev_loop *loop = w->other; |
3445 | EV_P = w->other; |
2755 | |
3446 | |
2756 | while (fdchangecnt) |
3447 | while (fdchangecnt) |
2757 | { |
3448 | { |
2758 | fd_reify (EV_A); |
3449 | fd_reify (EV_A); |
2759 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3450 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2760 | } |
3451 | } |
2761 | } |
3452 | } |
2762 | } |
3453 | } |
2763 | |
3454 | |
|
|
3455 | static void |
|
|
3456 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3457 | { |
|
|
3458 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3459 | |
|
|
3460 | ev_embed_stop (EV_A_ w); |
|
|
3461 | |
|
|
3462 | { |
|
|
3463 | EV_P = w->other; |
|
|
3464 | |
|
|
3465 | ev_loop_fork (EV_A); |
|
|
3466 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3467 | } |
|
|
3468 | |
|
|
3469 | ev_embed_start (EV_A_ w); |
|
|
3470 | } |
|
|
3471 | |
2764 | #if 0 |
3472 | #if 0 |
2765 | static void |
3473 | static void |
2766 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3474 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2767 | { |
3475 | { |
2768 | ev_idle_stop (EV_A_ idle); |
3476 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2774 | { |
3482 | { |
2775 | if (expect_false (ev_is_active (w))) |
3483 | if (expect_false (ev_is_active (w))) |
2776 | return; |
3484 | return; |
2777 | |
3485 | |
2778 | { |
3486 | { |
2779 | struct ev_loop *loop = w->other; |
3487 | EV_P = w->other; |
2780 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3488 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2781 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3489 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2782 | } |
3490 | } |
2783 | |
3491 | |
2784 | EV_FREQUENT_CHECK; |
3492 | EV_FREQUENT_CHECK; |
2785 | |
3493 | |
… | |
… | |
2788 | |
3496 | |
2789 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3497 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2790 | ev_set_priority (&w->prepare, EV_MINPRI); |
3498 | ev_set_priority (&w->prepare, EV_MINPRI); |
2791 | ev_prepare_start (EV_A_ &w->prepare); |
3499 | ev_prepare_start (EV_A_ &w->prepare); |
2792 | |
3500 | |
|
|
3501 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3502 | ev_fork_start (EV_A_ &w->fork); |
|
|
3503 | |
2793 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3504 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2794 | |
3505 | |
2795 | ev_start (EV_A_ (W)w, 1); |
3506 | ev_start (EV_A_ (W)w, 1); |
2796 | |
3507 | |
2797 | EV_FREQUENT_CHECK; |
3508 | EV_FREQUENT_CHECK; |
… | |
… | |
2804 | if (expect_false (!ev_is_active (w))) |
3515 | if (expect_false (!ev_is_active (w))) |
2805 | return; |
3516 | return; |
2806 | |
3517 | |
2807 | EV_FREQUENT_CHECK; |
3518 | EV_FREQUENT_CHECK; |
2808 | |
3519 | |
2809 | ev_io_stop (EV_A_ &w->io); |
3520 | ev_io_stop (EV_A_ &w->io); |
2810 | ev_prepare_stop (EV_A_ &w->prepare); |
3521 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3522 | ev_fork_stop (EV_A_ &w->fork); |
2811 | |
3523 | |
2812 | ev_stop (EV_A_ (W)w); |
3524 | ev_stop (EV_A_ (W)w); |
2813 | |
3525 | |
2814 | EV_FREQUENT_CHECK; |
3526 | EV_FREQUENT_CHECK; |
2815 | } |
3527 | } |
… | |
… | |
2894 | |
3606 | |
2895 | void |
3607 | void |
2896 | ev_async_send (EV_P_ ev_async *w) |
3608 | ev_async_send (EV_P_ ev_async *w) |
2897 | { |
3609 | { |
2898 | w->sent = 1; |
3610 | w->sent = 1; |
2899 | evpipe_write (EV_A_ &gotasync); |
3611 | evpipe_write (EV_A_ &async_pending); |
2900 | } |
3612 | } |
2901 | #endif |
3613 | #endif |
2902 | |
3614 | |
2903 | /*****************************************************************************/ |
3615 | /*****************************************************************************/ |
2904 | |
3616 | |
… | |
… | |
2914 | once_cb (EV_P_ struct ev_once *once, int revents) |
3626 | once_cb (EV_P_ struct ev_once *once, int revents) |
2915 | { |
3627 | { |
2916 | void (*cb)(int revents, void *arg) = once->cb; |
3628 | void (*cb)(int revents, void *arg) = once->cb; |
2917 | void *arg = once->arg; |
3629 | void *arg = once->arg; |
2918 | |
3630 | |
2919 | ev_io_stop (EV_A_ &once->io); |
3631 | ev_io_stop (EV_A_ &once->io); |
2920 | ev_timer_stop (EV_A_ &once->to); |
3632 | ev_timer_stop (EV_A_ &once->to); |
2921 | ev_free (once); |
3633 | ev_free (once); |
2922 | |
3634 | |
2923 | cb (revents, arg); |
3635 | cb (revents, arg); |
2924 | } |
3636 | } |
2925 | |
3637 | |
2926 | static void |
3638 | static void |
2927 | once_cb_io (EV_P_ ev_io *w, int revents) |
3639 | once_cb_io (EV_P_ ev_io *w, int revents) |
2928 | { |
3640 | { |
2929 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3641 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3642 | |
|
|
3643 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2930 | } |
3644 | } |
2931 | |
3645 | |
2932 | static void |
3646 | static void |
2933 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3647 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2934 | { |
3648 | { |
2935 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3649 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3650 | |
|
|
3651 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2936 | } |
3652 | } |
2937 | |
3653 | |
2938 | void |
3654 | void |
2939 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3655 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2940 | { |
3656 | { |
2941 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3657 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2942 | |
3658 | |
2943 | if (expect_false (!once)) |
3659 | if (expect_false (!once)) |
2944 | { |
3660 | { |
2945 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3661 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2946 | return; |
3662 | return; |
2947 | } |
3663 | } |
2948 | |
3664 | |
2949 | once->cb = cb; |
3665 | once->cb = cb; |
2950 | once->arg = arg; |
3666 | once->arg = arg; |
… | |
… | |
2962 | ev_timer_set (&once->to, timeout, 0.); |
3678 | ev_timer_set (&once->to, timeout, 0.); |
2963 | ev_timer_start (EV_A_ &once->to); |
3679 | ev_timer_start (EV_A_ &once->to); |
2964 | } |
3680 | } |
2965 | } |
3681 | } |
2966 | |
3682 | |
|
|
3683 | /*****************************************************************************/ |
|
|
3684 | |
|
|
3685 | #if EV_WALK_ENABLE |
|
|
3686 | void |
|
|
3687 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3688 | { |
|
|
3689 | int i, j; |
|
|
3690 | ev_watcher_list *wl, *wn; |
|
|
3691 | |
|
|
3692 | if (types & (EV_IO | EV_EMBED)) |
|
|
3693 | for (i = 0; i < anfdmax; ++i) |
|
|
3694 | for (wl = anfds [i].head; wl; ) |
|
|
3695 | { |
|
|
3696 | wn = wl->next; |
|
|
3697 | |
|
|
3698 | #if EV_EMBED_ENABLE |
|
|
3699 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3700 | { |
|
|
3701 | if (types & EV_EMBED) |
|
|
3702 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3703 | } |
|
|
3704 | else |
|
|
3705 | #endif |
|
|
3706 | #if EV_USE_INOTIFY |
|
|
3707 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3708 | ; |
|
|
3709 | else |
|
|
3710 | #endif |
|
|
3711 | if ((ev_io *)wl != &pipe_w) |
|
|
3712 | if (types & EV_IO) |
|
|
3713 | cb (EV_A_ EV_IO, wl); |
|
|
3714 | |
|
|
3715 | wl = wn; |
|
|
3716 | } |
|
|
3717 | |
|
|
3718 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3719 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3720 | #if EV_STAT_ENABLE |
|
|
3721 | /*TODO: timer is not always active*/ |
|
|
3722 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3723 | { |
|
|
3724 | if (types & EV_STAT) |
|
|
3725 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3726 | } |
|
|
3727 | else |
|
|
3728 | #endif |
|
|
3729 | if (types & EV_TIMER) |
|
|
3730 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3731 | |
|
|
3732 | #if EV_PERIODIC_ENABLE |
|
|
3733 | if (types & EV_PERIODIC) |
|
|
3734 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3735 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3736 | #endif |
|
|
3737 | |
|
|
3738 | #if EV_IDLE_ENABLE |
|
|
3739 | if (types & EV_IDLE) |
|
|
3740 | for (j = NUMPRI; i--; ) |
|
|
3741 | for (i = idlecnt [j]; i--; ) |
|
|
3742 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3743 | #endif |
|
|
3744 | |
|
|
3745 | #if EV_FORK_ENABLE |
|
|
3746 | if (types & EV_FORK) |
|
|
3747 | for (i = forkcnt; i--; ) |
|
|
3748 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3749 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3750 | #endif |
|
|
3751 | |
|
|
3752 | #if EV_ASYNC_ENABLE |
|
|
3753 | if (types & EV_ASYNC) |
|
|
3754 | for (i = asynccnt; i--; ) |
|
|
3755 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3756 | #endif |
|
|
3757 | |
|
|
3758 | #if EV_PREPARE_ENABLE |
|
|
3759 | if (types & EV_PREPARE) |
|
|
3760 | for (i = preparecnt; i--; ) |
|
|
3761 | # if EV_EMBED_ENABLE |
|
|
3762 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3763 | # endif |
|
|
3764 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3765 | #endif |
|
|
3766 | |
|
|
3767 | #if EV_CHECK_ENABLE |
|
|
3768 | if (types & EV_CHECK) |
|
|
3769 | for (i = checkcnt; i--; ) |
|
|
3770 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3771 | #endif |
|
|
3772 | |
|
|
3773 | #if EV_SIGNAL_ENABLE |
|
|
3774 | if (types & EV_SIGNAL) |
|
|
3775 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3776 | for (wl = signals [i].head; wl; ) |
|
|
3777 | { |
|
|
3778 | wn = wl->next; |
|
|
3779 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3780 | wl = wn; |
|
|
3781 | } |
|
|
3782 | #endif |
|
|
3783 | |
|
|
3784 | #if EV_CHILD_ENABLE |
|
|
3785 | if (types & EV_CHILD) |
|
|
3786 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3787 | for (wl = childs [i]; wl; ) |
|
|
3788 | { |
|
|
3789 | wn = wl->next; |
|
|
3790 | cb (EV_A_ EV_CHILD, wl); |
|
|
3791 | wl = wn; |
|
|
3792 | } |
|
|
3793 | #endif |
|
|
3794 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3795 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3796 | } |
|
|
3797 | #endif |
|
|
3798 | |
2967 | #if EV_MULTIPLICITY |
3799 | #if EV_MULTIPLICITY |
2968 | #include "ev_wrap.h" |
3800 | #include "ev_wrap.h" |
2969 | #endif |
3801 | #endif |
2970 | |
3802 | |
2971 | #ifdef __cplusplus |
3803 | #ifdef __cplusplus |