1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
79 | # endif |
75 | # endif |
80 | # endif |
76 | # endif |
81 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
85 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
|
|
86 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
88 | # endif |
94 | # endif |
89 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
99 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
103 | # endif |
105 | |
104 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
109 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
112 | # endif |
112 | # endif |
113 | |
113 | |
|
|
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE 1 |
|
|
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
120 | # endif |
121 | # endif |
121 | |
122 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
125 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
126 | # endif |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
128 | # endif |
130 | # endif |
129 | |
131 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
135 | # endif |
|
|
136 | # else |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
136 | # endif |
139 | # endif |
137 | |
140 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
142 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
148 | # endif |
145 | |
149 | |
|
|
150 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
151 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
152 | # endif |
157 | # endif |
153 | |
158 | |
154 | #endif |
159 | #endif |
155 | |
160 | |
156 | #include <math.h> |
161 | #include <math.h> |
157 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
158 | #include <fcntl.h> |
164 | #include <fcntl.h> |
159 | #include <stddef.h> |
165 | #include <stddef.h> |
160 | |
166 | |
161 | #include <stdio.h> |
167 | #include <stdio.h> |
162 | |
168 | |
163 | #include <assert.h> |
169 | #include <assert.h> |
164 | #include <errno.h> |
170 | #include <errno.h> |
165 | #include <sys/types.h> |
171 | #include <sys/types.h> |
166 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
167 | |
174 | |
168 | #include <signal.h> |
175 | #include <signal.h> |
169 | |
176 | |
170 | #ifdef EV_H |
177 | #ifdef EV_H |
171 | # include EV_H |
178 | # include EV_H |
172 | #else |
179 | #else |
173 | # include "ev.h" |
180 | # include "ev.h" |
174 | #endif |
181 | #endif |
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|
182 | |
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|
183 | EV_CPP(extern "C" {) |
175 | |
184 | |
176 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
177 | # include <sys/time.h> |
186 | # include <sys/time.h> |
178 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
179 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
182 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
183 | # include <windows.h> |
192 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
187 | #endif |
197 | #endif |
|
|
198 | |
|
|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
|
|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
|
203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
188 | |
206 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | |
208 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
209 | /* try to deduce the maximum number of signals on this platform */ |
192 | #if defined (EV_NSIG) |
210 | #if defined (EV_NSIG) |
… | |
… | |
204 | #elif defined (MAXSIG) |
222 | #elif defined (MAXSIG) |
205 | # define EV_NSIG (MAXSIG+1) |
223 | # define EV_NSIG (MAXSIG+1) |
206 | #elif defined (MAX_SIG) |
224 | #elif defined (MAX_SIG) |
207 | # define EV_NSIG (MAX_SIG+1) |
225 | # define EV_NSIG (MAX_SIG+1) |
208 | #elif defined (SIGARRAYSIZE) |
226 | #elif defined (SIGARRAYSIZE) |
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
210 | #elif defined (_sys_nsig) |
228 | #elif defined (_sys_nsig) |
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
212 | #else |
230 | #else |
213 | # error "unable to find value for NSIG, please report" |
231 | # error "unable to find value for NSIG, please report" |
214 | /* to make it compile regardless, just remove the above line */ |
232 | /* to make it compile regardless, just remove the above line, */ |
|
|
233 | /* but consider reporting it, too! :) */ |
215 | # define EV_NSIG 65 |
234 | # define EV_NSIG 65 |
216 | #endif |
235 | #endif |
217 | |
236 | |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
221 | # else |
240 | # else |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # endif |
242 | # endif |
224 | #endif |
243 | #endif |
225 | |
244 | |
226 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
228 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
229 | # else |
248 | # else |
230 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
231 | # endif |
250 | # endif |
232 | #endif |
251 | #endif |
233 | |
252 | |
… | |
… | |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
236 | #endif |
255 | #endif |
237 | |
256 | |
238 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
239 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
240 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
241 | # else |
260 | # else |
242 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
243 | # endif |
262 | # endif |
244 | #endif |
263 | #endif |
245 | |
264 | |
246 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
247 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
248 | #endif |
267 | #endif |
249 | |
268 | |
250 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
251 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
252 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
253 | # else |
272 | # else |
254 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
255 | # endif |
274 | # endif |
256 | #endif |
275 | #endif |
257 | |
276 | |
258 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
259 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
260 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
261 | # else |
280 | # else |
262 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
263 | # endif |
282 | # endif |
264 | #endif |
283 | #endif |
265 | |
284 | |
… | |
… | |
271 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
272 | #endif |
291 | #endif |
273 | |
292 | |
274 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
275 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
276 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
277 | # else |
296 | # else |
278 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
279 | # endif |
298 | # endif |
280 | #endif |
299 | #endif |
281 | |
300 | |
282 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
283 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
284 | # define EV_PID_HASHSIZE 1 |
|
|
285 | # else |
|
|
286 | # define EV_PID_HASHSIZE 16 |
|
|
287 | # endif |
|
|
288 | #endif |
303 | #endif |
289 | |
304 | |
290 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
291 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
292 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
293 | # else |
|
|
294 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
295 | # endif |
|
|
296 | #endif |
307 | #endif |
297 | |
308 | |
298 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
301 | # else |
312 | # else |
302 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
303 | # endif |
314 | # endif |
304 | #endif |
315 | #endif |
305 | |
316 | |
306 | #ifndef EV_USE_SIGNALFD |
317 | #ifndef EV_USE_SIGNALFD |
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
308 | # define EV_USE_SIGNALFD 1 |
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
309 | # else |
320 | # else |
310 | # define EV_USE_SIGNALFD 0 |
321 | # define EV_USE_SIGNALFD 0 |
311 | # endif |
322 | # endif |
312 | #endif |
323 | #endif |
313 | |
324 | |
… | |
… | |
316 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
318 | #endif |
329 | #endif |
319 | |
330 | |
320 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
321 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
322 | #endif |
333 | #endif |
323 | |
334 | |
324 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
326 | #endif |
337 | #endif |
327 | |
338 | |
328 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
330 | #endif |
341 | #endif |
331 | |
342 | |
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
333 | /* which makes programs even slower. might work on other unices, too. */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
334 | #if EV_USE_CLOCK_SYSCALL |
345 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
343 | # endif |
354 | # endif |
344 | #endif |
355 | #endif |
345 | |
356 | |
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | |
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
|
|
364 | |
348 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
349 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
351 | #endif |
368 | #endif |
352 | |
369 | |
… | |
… | |
359 | # undef EV_USE_INOTIFY |
376 | # undef EV_USE_INOTIFY |
360 | # define EV_USE_INOTIFY 0 |
377 | # define EV_USE_INOTIFY 0 |
361 | #endif |
378 | #endif |
362 | |
379 | |
363 | #if !EV_USE_NANOSLEEP |
380 | #if !EV_USE_NANOSLEEP |
364 | # ifndef _WIN32 |
381 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
382 | # if !defined(_WIN32) && !defined(__hpux) |
365 | # include <sys/select.h> |
383 | # include <sys/select.h> |
366 | # endif |
384 | # endif |
367 | #endif |
385 | #endif |
368 | |
386 | |
369 | #if EV_USE_INOTIFY |
387 | #if EV_USE_INOTIFY |
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
388 | # include <sys/statfs.h> |
372 | # include <sys/inotify.h> |
389 | # include <sys/inotify.h> |
373 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
374 | # ifndef IN_DONT_FOLLOW |
391 | # ifndef IN_DONT_FOLLOW |
375 | # undef EV_USE_INOTIFY |
392 | # undef EV_USE_INOTIFY |
… | |
… | |
392 | # define EFD_CLOEXEC O_CLOEXEC |
409 | # define EFD_CLOEXEC O_CLOEXEC |
393 | # else |
410 | # else |
394 | # define EFD_CLOEXEC 02000000 |
411 | # define EFD_CLOEXEC 02000000 |
395 | # endif |
412 | # endif |
396 | # endif |
413 | # endif |
397 | # ifdef __cplusplus |
|
|
398 | extern "C" { |
|
|
399 | # endif |
|
|
400 | int eventfd (unsigned int initval, int flags); |
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
401 | # ifdef __cplusplus |
|
|
402 | } |
|
|
403 | # endif |
|
|
404 | #endif |
415 | #endif |
405 | |
416 | |
406 | #if EV_USE_SIGNALFD |
417 | #if EV_USE_SIGNALFD |
407 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
408 | # include <stdint.h> |
419 | # include <stdint.h> |
… | |
… | |
414 | # define SFD_CLOEXEC O_CLOEXEC |
425 | # define SFD_CLOEXEC O_CLOEXEC |
415 | # else |
426 | # else |
416 | # define SFD_CLOEXEC 02000000 |
427 | # define SFD_CLOEXEC 02000000 |
417 | # endif |
428 | # endif |
418 | # endif |
429 | # endif |
419 | # ifdef __cplusplus |
|
|
420 | extern "C" { |
|
|
421 | # endif |
|
|
422 | int signalfd (int fd, const sigset_t *mask, int flags); |
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
423 | |
431 | |
424 | struct signalfd_siginfo |
432 | struct signalfd_siginfo |
425 | { |
433 | { |
426 | uint32_t ssi_signo; |
434 | uint32_t ssi_signo; |
427 | char pad[128 - sizeof (uint32_t)]; |
435 | char pad[128 - sizeof (uint32_t)]; |
428 | }; |
436 | }; |
429 | # ifdef __cplusplus |
|
|
430 | } |
|
|
431 | # endif |
437 | #endif |
432 | #endif |
|
|
433 | |
|
|
434 | |
438 | |
435 | /**/ |
439 | /**/ |
436 | |
440 | |
437 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
438 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
439 | #else |
443 | #else |
440 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
441 | #endif |
445 | #endif |
442 | |
446 | |
443 | /* |
447 | /* |
… | |
… | |
451 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
452 | |
456 | |
453 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
454 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
455 | |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
462 | |
456 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
457 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
458 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
459 | #else |
466 | #else |
460 | # define expect(expr,value) (expr) |
467 | # define expect(expr,value) (expr) |
… | |
… | |
466 | |
473 | |
467 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
468 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
469 | #define inline_size static inline |
476 | #define inline_size static inline |
470 | |
477 | |
471 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
472 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
473 | #else |
|
|
474 | # define inline_speed static inline |
|
|
475 | #endif |
482 | #endif |
476 | |
483 | |
477 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
478 | |
485 | |
479 | #if EV_MINPRI == EV_MAXPRI |
486 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
492 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
493 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
494 | |
501 | |
495 | #if EV_USE_REALTIME |
502 | #if EV_USE_REALTIME |
496 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
497 | /* giving it a reasonably high chance of working on typical architetcures */ |
504 | /* giving it a reasonably high chance of working on typical architectures */ |
498 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
499 | #endif |
506 | #endif |
500 | |
507 | |
501 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
502 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
504 | |
511 | |
505 | #ifndef EV_FD_TO_WIN32_HANDLE |
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
506 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
507 | #endif |
514 | #endif |
508 | #ifndef EV_WIN32_HANDLE_TO_FD |
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
509 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
510 | #endif |
517 | #endif |
511 | #ifndef EV_WIN32_CLOSE_FD |
518 | #ifndef EV_WIN32_CLOSE_FD |
512 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
513 | #endif |
520 | #endif |
514 | |
521 | |
515 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
516 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
517 | #endif |
524 | #endif |
518 | |
525 | |
519 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
|
|
527 | |
|
|
528 | #ifdef __linux |
|
|
529 | # include <sys/utsname.h> |
|
|
530 | #endif |
|
|
531 | |
|
|
532 | static unsigned int noinline |
|
|
533 | ev_linux_version (void) |
|
|
534 | { |
|
|
535 | #ifdef __linux |
|
|
536 | unsigned int v = 0; |
|
|
537 | struct utsname buf; |
|
|
538 | int i; |
|
|
539 | char *p = buf.release; |
|
|
540 | |
|
|
541 | if (uname (&buf)) |
|
|
542 | return 0; |
|
|
543 | |
|
|
544 | for (i = 3+1; --i; ) |
|
|
545 | { |
|
|
546 | unsigned int c = 0; |
|
|
547 | |
|
|
548 | for (;;) |
|
|
549 | { |
|
|
550 | if (*p >= '0' && *p <= '9') |
|
|
551 | c = c * 10 + *p++ - '0'; |
|
|
552 | else |
|
|
553 | { |
|
|
554 | p += *p == '.'; |
|
|
555 | break; |
|
|
556 | } |
|
|
557 | } |
|
|
558 | |
|
|
559 | v = (v << 8) | c; |
|
|
560 | } |
|
|
561 | |
|
|
562 | return v; |
|
|
563 | #else |
|
|
564 | return 0; |
|
|
565 | #endif |
|
|
566 | } |
|
|
567 | |
|
|
568 | /*****************************************************************************/ |
|
|
569 | |
|
|
570 | #if EV_AVOID_STDIO |
|
|
571 | static void noinline |
|
|
572 | ev_printerr (const char *msg) |
|
|
573 | { |
|
|
574 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
575 | } |
|
|
576 | #endif |
520 | |
577 | |
521 | static void (*syserr_cb)(const char *msg); |
578 | static void (*syserr_cb)(const char *msg); |
522 | |
579 | |
523 | void |
580 | void |
524 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
581 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
534 | |
591 | |
535 | if (syserr_cb) |
592 | if (syserr_cb) |
536 | syserr_cb (msg); |
593 | syserr_cb (msg); |
537 | else |
594 | else |
538 | { |
595 | { |
|
|
596 | #if EV_AVOID_STDIO |
|
|
597 | ev_printerr (msg); |
|
|
598 | ev_printerr (": "); |
|
|
599 | ev_printerr (strerror (errno)); |
|
|
600 | ev_printerr ("\n"); |
|
|
601 | #else |
539 | perror (msg); |
602 | perror (msg); |
|
|
603 | #endif |
540 | abort (); |
604 | abort (); |
541 | } |
605 | } |
542 | } |
606 | } |
543 | |
607 | |
544 | static void * |
608 | static void * |
545 | ev_realloc_emul (void *ptr, long size) |
609 | ev_realloc_emul (void *ptr, long size) |
546 | { |
610 | { |
|
|
611 | #if __GLIBC__ |
|
|
612 | return realloc (ptr, size); |
|
|
613 | #else |
547 | /* some systems, notably openbsd and darwin, fail to properly |
614 | /* some systems, notably openbsd and darwin, fail to properly |
548 | * implement realloc (x, 0) (as required by both ansi c-98 and |
615 | * implement realloc (x, 0) (as required by both ansi c-89 and |
549 | * the single unix specification, so work around them here. |
616 | * the single unix specification, so work around them here. |
550 | */ |
617 | */ |
551 | |
618 | |
552 | if (size) |
619 | if (size) |
553 | return realloc (ptr, size); |
620 | return realloc (ptr, size); |
554 | |
621 | |
555 | free (ptr); |
622 | free (ptr); |
556 | return 0; |
623 | return 0; |
|
|
624 | #endif |
557 | } |
625 | } |
558 | |
626 | |
559 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
627 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
560 | |
628 | |
561 | void |
629 | void |
… | |
… | |
569 | { |
637 | { |
570 | ptr = alloc (ptr, size); |
638 | ptr = alloc (ptr, size); |
571 | |
639 | |
572 | if (!ptr && size) |
640 | if (!ptr && size) |
573 | { |
641 | { |
|
|
642 | #if EV_AVOID_STDIO |
|
|
643 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
644 | #else |
574 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
645 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
646 | #endif |
575 | abort (); |
647 | abort (); |
576 | } |
648 | } |
577 | |
649 | |
578 | return ptr; |
650 | return ptr; |
579 | } |
651 | } |
… | |
… | |
595 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
667 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
596 | unsigned char unused; |
668 | unsigned char unused; |
597 | #if EV_USE_EPOLL |
669 | #if EV_USE_EPOLL |
598 | unsigned int egen; /* generation counter to counter epoll bugs */ |
670 | unsigned int egen; /* generation counter to counter epoll bugs */ |
599 | #endif |
671 | #endif |
600 | #if EV_SELECT_IS_WINSOCKET |
672 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
601 | SOCKET handle; |
673 | SOCKET handle; |
|
|
674 | #endif |
|
|
675 | #if EV_USE_IOCP |
|
|
676 | OVERLAPPED or, ow; |
602 | #endif |
677 | #endif |
603 | } ANFD; |
678 | } ANFD; |
604 | |
679 | |
605 | /* stores the pending event set for a given watcher */ |
680 | /* stores the pending event set for a given watcher */ |
606 | typedef struct |
681 | typedef struct |
… | |
… | |
661 | |
736 | |
662 | static int ev_default_loop_ptr; |
737 | static int ev_default_loop_ptr; |
663 | |
738 | |
664 | #endif |
739 | #endif |
665 | |
740 | |
666 | #if EV_MINIMAL < 2 |
741 | #if EV_FEATURE_API |
667 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
742 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
668 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
743 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
669 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
744 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
670 | #else |
745 | #else |
671 | # define EV_RELEASE_CB (void)0 |
746 | # define EV_RELEASE_CB (void)0 |
672 | # define EV_ACQUIRE_CB (void)0 |
747 | # define EV_ACQUIRE_CB (void)0 |
673 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
748 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
674 | #endif |
749 | #endif |
675 | |
750 | |
676 | #define EVUNLOOP_RECURSE 0x80 |
751 | #define EVBREAK_RECURSE 0x80 |
677 | |
752 | |
678 | /*****************************************************************************/ |
753 | /*****************************************************************************/ |
679 | |
754 | |
680 | #ifndef EV_HAVE_EV_TIME |
755 | #ifndef EV_HAVE_EV_TIME |
681 | ev_tstamp |
756 | ev_tstamp |
… | |
… | |
725 | if (delay > 0.) |
800 | if (delay > 0.) |
726 | { |
801 | { |
727 | #if EV_USE_NANOSLEEP |
802 | #if EV_USE_NANOSLEEP |
728 | struct timespec ts; |
803 | struct timespec ts; |
729 | |
804 | |
730 | ts.tv_sec = (time_t)delay; |
805 | EV_TS_SET (ts, delay); |
731 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
732 | |
|
|
733 | nanosleep (&ts, 0); |
806 | nanosleep (&ts, 0); |
734 | #elif defined(_WIN32) |
807 | #elif defined(_WIN32) |
735 | Sleep ((unsigned long)(delay * 1e3)); |
808 | Sleep ((unsigned long)(delay * 1e3)); |
736 | #else |
809 | #else |
737 | struct timeval tv; |
810 | struct timeval tv; |
738 | |
811 | |
739 | tv.tv_sec = (time_t)delay; |
|
|
740 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
741 | |
|
|
742 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
812 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
743 | /* something not guaranteed by newer posix versions, but guaranteed */ |
813 | /* something not guaranteed by newer posix versions, but guaranteed */ |
744 | /* by older ones */ |
814 | /* by older ones */ |
|
|
815 | EV_TV_SET (tv, delay); |
745 | select (0, 0, 0, 0, &tv); |
816 | select (0, 0, 0, 0, &tv); |
746 | #endif |
817 | #endif |
747 | } |
818 | } |
748 | } |
819 | } |
749 | |
820 | |
|
|
821 | inline_speed int |
|
|
822 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
823 | { |
|
|
824 | int ms = timeout * 1000. + .999999; |
|
|
825 | |
|
|
826 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
827 | } |
|
|
828 | |
750 | /*****************************************************************************/ |
829 | /*****************************************************************************/ |
751 | |
830 | |
752 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
831 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
753 | |
832 | |
754 | /* find a suitable new size for the given array, */ |
833 | /* find a suitable new size for the given array, */ |
755 | /* hopefully by rounding to a ncie-to-malloc size */ |
834 | /* hopefully by rounding to a nice-to-malloc size */ |
756 | inline_size int |
835 | inline_size int |
757 | array_nextsize (int elem, int cur, int cnt) |
836 | array_nextsize (int elem, int cur, int cnt) |
758 | { |
837 | { |
759 | int ncur = cur + 1; |
838 | int ncur = cur + 1; |
760 | |
839 | |
… | |
… | |
856 | } |
935 | } |
857 | |
936 | |
858 | /*****************************************************************************/ |
937 | /*****************************************************************************/ |
859 | |
938 | |
860 | inline_speed void |
939 | inline_speed void |
861 | fd_event_nc (EV_P_ int fd, int revents) |
940 | fd_event_nocheck (EV_P_ int fd, int revents) |
862 | { |
941 | { |
863 | ANFD *anfd = anfds + fd; |
942 | ANFD *anfd = anfds + fd; |
864 | ev_io *w; |
943 | ev_io *w; |
865 | |
944 | |
866 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
945 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
878 | fd_event (EV_P_ int fd, int revents) |
957 | fd_event (EV_P_ int fd, int revents) |
879 | { |
958 | { |
880 | ANFD *anfd = anfds + fd; |
959 | ANFD *anfd = anfds + fd; |
881 | |
960 | |
882 | if (expect_true (!anfd->reify)) |
961 | if (expect_true (!anfd->reify)) |
883 | fd_event_nc (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
884 | } |
963 | } |
885 | |
964 | |
886 | void |
965 | void |
887 | ev_feed_fd_event (EV_P_ int fd, int revents) |
966 | ev_feed_fd_event (EV_P_ int fd, int revents) |
888 | { |
967 | { |
889 | if (fd >= 0 && fd < anfdmax) |
968 | if (fd >= 0 && fd < anfdmax) |
890 | fd_event_nc (EV_A_ fd, revents); |
969 | fd_event_nocheck (EV_A_ fd, revents); |
891 | } |
970 | } |
892 | |
971 | |
893 | /* make sure the external fd watch events are in-sync */ |
972 | /* make sure the external fd watch events are in-sync */ |
894 | /* with the kernel/libev internal state */ |
973 | /* with the kernel/libev internal state */ |
895 | inline_size void |
974 | inline_size void |
… | |
… | |
901 | { |
980 | { |
902 | int fd = fdchanges [i]; |
981 | int fd = fdchanges [i]; |
903 | ANFD *anfd = anfds + fd; |
982 | ANFD *anfd = anfds + fd; |
904 | ev_io *w; |
983 | ev_io *w; |
905 | |
984 | |
906 | unsigned char events = 0; |
985 | unsigned char o_events = anfd->events; |
|
|
986 | unsigned char o_reify = anfd->reify; |
907 | |
987 | |
908 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
988 | anfd->reify = 0; |
909 | events |= (unsigned char)w->events; |
|
|
910 | |
989 | |
911 | #if EV_SELECT_IS_WINSOCKET |
990 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
912 | if (events) |
991 | if (o_reify & EV__IOFDSET) |
913 | { |
992 | { |
914 | unsigned long arg; |
993 | unsigned long arg; |
915 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
994 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
916 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
995 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
996 | printf ("oi %d %x\n", fd, anfd->handle);//D |
917 | } |
997 | } |
918 | #endif |
998 | #endif |
919 | |
999 | |
|
|
1000 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
920 | { |
1001 | { |
921 | unsigned char o_events = anfd->events; |
|
|
922 | unsigned char o_reify = anfd->reify; |
|
|
923 | |
|
|
924 | anfd->reify = 0; |
|
|
925 | anfd->events = events; |
1002 | anfd->events = 0; |
926 | |
1003 | |
927 | if (o_events != events || o_reify & EV__IOFDSET) |
1004 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1005 | anfd->events |= (unsigned char)w->events; |
|
|
1006 | |
|
|
1007 | if (o_events != anfd->events) |
|
|
1008 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | if (o_reify & EV__IOFDSET) |
928 | backend_modify (EV_A_ fd, o_events, events); |
1012 | backend_modify (EV_A_ fd, o_events, anfd->events); |
929 | } |
|
|
930 | } |
1013 | } |
931 | |
1014 | |
932 | fdchangecnt = 0; |
1015 | fdchangecnt = 0; |
933 | } |
1016 | } |
934 | |
1017 | |
… | |
… | |
958 | ev_io_stop (EV_A_ w); |
1041 | ev_io_stop (EV_A_ w); |
959 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1042 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
960 | } |
1043 | } |
961 | } |
1044 | } |
962 | |
1045 | |
963 | /* check whether the given fd is atcually valid, for error recovery */ |
1046 | /* check whether the given fd is actually valid, for error recovery */ |
964 | inline_size int |
1047 | inline_size int |
965 | fd_valid (int fd) |
1048 | fd_valid (int fd) |
966 | { |
1049 | { |
967 | #ifdef _WIN32 |
1050 | #ifdef _WIN32 |
968 | return _get_osfhandle (fd) != -1; |
1051 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
969 | #else |
1052 | #else |
970 | return fcntl (fd, F_GETFD) != -1; |
1053 | return fcntl (fd, F_GETFD) != -1; |
971 | #endif |
1054 | #endif |
972 | } |
1055 | } |
973 | |
1056 | |
… | |
… | |
1010 | anfds [fd].emask = 0; |
1093 | anfds [fd].emask = 0; |
1011 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1094 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1012 | } |
1095 | } |
1013 | } |
1096 | } |
1014 | |
1097 | |
|
|
1098 | /* used to prepare libev internal fd's */ |
|
|
1099 | /* this is not fork-safe */ |
|
|
1100 | inline_speed void |
|
|
1101 | fd_intern (int fd) |
|
|
1102 | { |
|
|
1103 | #ifdef _WIN32 |
|
|
1104 | unsigned long arg = 1; |
|
|
1105 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1106 | #else |
|
|
1107 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1108 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1109 | #endif |
|
|
1110 | } |
|
|
1111 | |
1015 | /*****************************************************************************/ |
1112 | /*****************************************************************************/ |
1016 | |
1113 | |
1017 | /* |
1114 | /* |
1018 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1115 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1019 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1116 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1020 | * the branching factor of the d-tree. |
1117 | * the branching factor of the d-tree. |
1021 | */ |
1118 | */ |
1022 | |
1119 | |
1023 | /* |
1120 | /* |
… | |
… | |
1171 | |
1268 | |
1172 | static ANSIG signals [EV_NSIG - 1]; |
1269 | static ANSIG signals [EV_NSIG - 1]; |
1173 | |
1270 | |
1174 | /*****************************************************************************/ |
1271 | /*****************************************************************************/ |
1175 | |
1272 | |
1176 | /* used to prepare libev internal fd's */ |
1273 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1177 | /* this is not fork-safe */ |
|
|
1178 | inline_speed void |
|
|
1179 | fd_intern (int fd) |
|
|
1180 | { |
|
|
1181 | #ifdef _WIN32 |
|
|
1182 | unsigned long arg = 1; |
|
|
1183 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1184 | #else |
|
|
1185 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1186 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1187 | #endif |
|
|
1188 | } |
|
|
1189 | |
1274 | |
1190 | static void noinline |
1275 | static void noinline |
1191 | evpipe_init (EV_P) |
1276 | evpipe_init (EV_P) |
1192 | { |
1277 | { |
1193 | if (!ev_is_active (&pipe_w)) |
1278 | if (!ev_is_active (&pipe_w)) |
1194 | { |
1279 | { |
1195 | #if EV_USE_EVENTFD |
1280 | # if EV_USE_EVENTFD |
1196 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1281 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1197 | if (evfd < 0 && errno == EINVAL) |
1282 | if (evfd < 0 && errno == EINVAL) |
1198 | evfd = eventfd (0, 0); |
1283 | evfd = eventfd (0, 0); |
1199 | |
1284 | |
1200 | if (evfd >= 0) |
1285 | if (evfd >= 0) |
… | |
… | |
1202 | evpipe [0] = -1; |
1287 | evpipe [0] = -1; |
1203 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1288 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1204 | ev_io_set (&pipe_w, evfd, EV_READ); |
1289 | ev_io_set (&pipe_w, evfd, EV_READ); |
1205 | } |
1290 | } |
1206 | else |
1291 | else |
1207 | #endif |
1292 | # endif |
1208 | { |
1293 | { |
1209 | while (pipe (evpipe)) |
1294 | while (pipe (evpipe)) |
1210 | ev_syserr ("(libev) error creating signal/async pipe"); |
1295 | ev_syserr ("(libev) error creating signal/async pipe"); |
1211 | |
1296 | |
1212 | fd_intern (evpipe [0]); |
1297 | fd_intern (evpipe [0]); |
… | |
… | |
1223 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1308 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1224 | { |
1309 | { |
1225 | if (!*flag) |
1310 | if (!*flag) |
1226 | { |
1311 | { |
1227 | int old_errno = errno; /* save errno because write might clobber it */ |
1312 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1313 | char dummy; |
1228 | |
1314 | |
1229 | *flag = 1; |
1315 | *flag = 1; |
1230 | |
1316 | |
1231 | #if EV_USE_EVENTFD |
1317 | #if EV_USE_EVENTFD |
1232 | if (evfd >= 0) |
1318 | if (evfd >= 0) |
… | |
… | |
1234 | uint64_t counter = 1; |
1320 | uint64_t counter = 1; |
1235 | write (evfd, &counter, sizeof (uint64_t)); |
1321 | write (evfd, &counter, sizeof (uint64_t)); |
1236 | } |
1322 | } |
1237 | else |
1323 | else |
1238 | #endif |
1324 | #endif |
|
|
1325 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1326 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1327 | /* so when you think this write should be a send instead, please find out */ |
|
|
1328 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1329 | /* tell me. thank you. */ |
1239 | write (evpipe [1], &old_errno, 1); |
1330 | write (evpipe [1], &dummy, 1); |
1240 | |
1331 | |
1241 | errno = old_errno; |
1332 | errno = old_errno; |
1242 | } |
1333 | } |
1243 | } |
1334 | } |
1244 | |
1335 | |
… | |
… | |
1257 | } |
1348 | } |
1258 | else |
1349 | else |
1259 | #endif |
1350 | #endif |
1260 | { |
1351 | { |
1261 | char dummy; |
1352 | char dummy; |
|
|
1353 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1262 | read (evpipe [0], &dummy, 1); |
1354 | read (evpipe [0], &dummy, 1); |
1263 | } |
1355 | } |
1264 | |
1356 | |
|
|
1357 | #if EV_SIGNAL_ENABLE |
1265 | if (sig_pending) |
1358 | if (sig_pending) |
1266 | { |
1359 | { |
1267 | sig_pending = 0; |
1360 | sig_pending = 0; |
1268 | |
1361 | |
1269 | for (i = EV_NSIG - 1; i--; ) |
1362 | for (i = EV_NSIG - 1; i--; ) |
1270 | if (expect_false (signals [i].pending)) |
1363 | if (expect_false (signals [i].pending)) |
1271 | ev_feed_signal_event (EV_A_ i + 1); |
1364 | ev_feed_signal_event (EV_A_ i + 1); |
1272 | } |
1365 | } |
|
|
1366 | #endif |
1273 | |
1367 | |
1274 | #if EV_ASYNC_ENABLE |
1368 | #if EV_ASYNC_ENABLE |
1275 | if (async_pending) |
1369 | if (async_pending) |
1276 | { |
1370 | { |
1277 | async_pending = 0; |
1371 | async_pending = 0; |
… | |
… | |
1286 | #endif |
1380 | #endif |
1287 | } |
1381 | } |
1288 | |
1382 | |
1289 | /*****************************************************************************/ |
1383 | /*****************************************************************************/ |
1290 | |
1384 | |
|
|
1385 | void |
|
|
1386 | ev_feed_signal (int signum) |
|
|
1387 | { |
|
|
1388 | #if EV_MULTIPLICITY |
|
|
1389 | EV_P = signals [signum - 1].loop; |
|
|
1390 | |
|
|
1391 | if (!EV_A) |
|
|
1392 | return; |
|
|
1393 | #endif |
|
|
1394 | |
|
|
1395 | signals [signum - 1].pending = 1; |
|
|
1396 | evpipe_write (EV_A_ &sig_pending); |
|
|
1397 | } |
|
|
1398 | |
1291 | static void |
1399 | static void |
1292 | ev_sighandler (int signum) |
1400 | ev_sighandler (int signum) |
1293 | { |
1401 | { |
1294 | #if EV_MULTIPLICITY |
|
|
1295 | EV_P = signals [signum - 1].loop; |
|
|
1296 | #endif |
|
|
1297 | |
|
|
1298 | #if _WIN32 |
1402 | #ifdef _WIN32 |
1299 | signal (signum, ev_sighandler); |
1403 | signal (signum, ev_sighandler); |
1300 | #endif |
1404 | #endif |
1301 | |
1405 | |
1302 | signals [signum - 1].pending = 1; |
1406 | ev_feed_signal (signum); |
1303 | evpipe_write (EV_A_ &sig_pending); |
|
|
1304 | } |
1407 | } |
1305 | |
1408 | |
1306 | void noinline |
1409 | void noinline |
1307 | ev_feed_signal_event (EV_P_ int signum) |
1410 | ev_feed_signal_event (EV_P_ int signum) |
1308 | { |
1411 | { |
… | |
… | |
1345 | break; |
1448 | break; |
1346 | } |
1449 | } |
1347 | } |
1450 | } |
1348 | #endif |
1451 | #endif |
1349 | |
1452 | |
|
|
1453 | #endif |
|
|
1454 | |
1350 | /*****************************************************************************/ |
1455 | /*****************************************************************************/ |
1351 | |
1456 | |
|
|
1457 | #if EV_CHILD_ENABLE |
1352 | static WL childs [EV_PID_HASHSIZE]; |
1458 | static WL childs [EV_PID_HASHSIZE]; |
1353 | |
|
|
1354 | #ifndef _WIN32 |
|
|
1355 | |
1459 | |
1356 | static ev_signal childev; |
1460 | static ev_signal childev; |
1357 | |
1461 | |
1358 | #ifndef WIFCONTINUED |
1462 | #ifndef WIFCONTINUED |
1359 | # define WIFCONTINUED(status) 0 |
1463 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1364 | child_reap (EV_P_ int chain, int pid, int status) |
1468 | child_reap (EV_P_ int chain, int pid, int status) |
1365 | { |
1469 | { |
1366 | ev_child *w; |
1470 | ev_child *w; |
1367 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1471 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1368 | |
1472 | |
1369 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1473 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1370 | { |
1474 | { |
1371 | if ((w->pid == pid || !w->pid) |
1475 | if ((w->pid == pid || !w->pid) |
1372 | && (!traced || (w->flags & 1))) |
1476 | && (!traced || (w->flags & 1))) |
1373 | { |
1477 | { |
1374 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1478 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1399 | /* make sure we are called again until all children have been reaped */ |
1503 | /* make sure we are called again until all children have been reaped */ |
1400 | /* we need to do it this way so that the callback gets called before we continue */ |
1504 | /* we need to do it this way so that the callback gets called before we continue */ |
1401 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1505 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1402 | |
1506 | |
1403 | child_reap (EV_A_ pid, pid, status); |
1507 | child_reap (EV_A_ pid, pid, status); |
1404 | if (EV_PID_HASHSIZE > 1) |
1508 | if ((EV_PID_HASHSIZE) > 1) |
1405 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1509 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1406 | } |
1510 | } |
1407 | |
1511 | |
1408 | #endif |
1512 | #endif |
1409 | |
1513 | |
1410 | /*****************************************************************************/ |
1514 | /*****************************************************************************/ |
1411 | |
1515 | |
|
|
1516 | #if EV_USE_IOCP |
|
|
1517 | # include "ev_iocp.c" |
|
|
1518 | #endif |
1412 | #if EV_USE_PORT |
1519 | #if EV_USE_PORT |
1413 | # include "ev_port.c" |
1520 | # include "ev_port.c" |
1414 | #endif |
1521 | #endif |
1415 | #if EV_USE_KQUEUE |
1522 | #if EV_USE_KQUEUE |
1416 | # include "ev_kqueue.c" |
1523 | # include "ev_kqueue.c" |
… | |
… | |
1476 | #ifdef __APPLE__ |
1583 | #ifdef __APPLE__ |
1477 | /* only select works correctly on that "unix-certified" platform */ |
1584 | /* only select works correctly on that "unix-certified" platform */ |
1478 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1585 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1479 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1586 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1480 | #endif |
1587 | #endif |
|
|
1588 | #ifdef __FreeBSD__ |
|
|
1589 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1590 | #endif |
1481 | |
1591 | |
1482 | return flags; |
1592 | return flags; |
1483 | } |
1593 | } |
1484 | |
1594 | |
1485 | unsigned int |
1595 | unsigned int |
1486 | ev_embeddable_backends (void) |
1596 | ev_embeddable_backends (void) |
1487 | { |
1597 | { |
1488 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1598 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1489 | |
1599 | |
1490 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1600 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1491 | /* please fix it and tell me how to detect the fix */ |
1601 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1492 | flags &= ~EVBACKEND_EPOLL; |
1602 | flags &= ~EVBACKEND_EPOLL; |
1493 | |
1603 | |
1494 | return flags; |
1604 | return flags; |
1495 | } |
1605 | } |
1496 | |
1606 | |
1497 | unsigned int |
1607 | unsigned int |
1498 | ev_backend (EV_P) |
1608 | ev_backend (EV_P) |
1499 | { |
1609 | { |
1500 | return backend; |
1610 | return backend; |
1501 | } |
1611 | } |
1502 | |
1612 | |
1503 | #if EV_MINIMAL < 2 |
1613 | #if EV_FEATURE_API |
1504 | unsigned int |
1614 | unsigned int |
1505 | ev_loop_count (EV_P) |
1615 | ev_iteration (EV_P) |
1506 | { |
1616 | { |
1507 | return loop_count; |
1617 | return loop_count; |
1508 | } |
1618 | } |
1509 | |
1619 | |
1510 | unsigned int |
1620 | unsigned int |
1511 | ev_loop_depth (EV_P) |
1621 | ev_depth (EV_P) |
1512 | { |
1622 | { |
1513 | return loop_depth; |
1623 | return loop_depth; |
1514 | } |
1624 | } |
1515 | |
1625 | |
1516 | void |
1626 | void |
… | |
… | |
1553 | static void noinline |
1663 | static void noinline |
1554 | loop_init (EV_P_ unsigned int flags) |
1664 | loop_init (EV_P_ unsigned int flags) |
1555 | { |
1665 | { |
1556 | if (!backend) |
1666 | if (!backend) |
1557 | { |
1667 | { |
|
|
1668 | origflags = flags; |
|
|
1669 | |
1558 | #if EV_USE_REALTIME |
1670 | #if EV_USE_REALTIME |
1559 | if (!have_realtime) |
1671 | if (!have_realtime) |
1560 | { |
1672 | { |
1561 | struct timespec ts; |
1673 | struct timespec ts; |
1562 | |
1674 | |
… | |
… | |
1588 | |
1700 | |
1589 | ev_rt_now = ev_time (); |
1701 | ev_rt_now = ev_time (); |
1590 | mn_now = get_clock (); |
1702 | mn_now = get_clock (); |
1591 | now_floor = mn_now; |
1703 | now_floor = mn_now; |
1592 | rtmn_diff = ev_rt_now - mn_now; |
1704 | rtmn_diff = ev_rt_now - mn_now; |
1593 | #if EV_MINIMAL < 2 |
1705 | #if EV_FEATURE_API |
1594 | invoke_cb = ev_invoke_pending; |
1706 | invoke_cb = ev_invoke_pending; |
1595 | #endif |
1707 | #endif |
1596 | |
1708 | |
1597 | io_blocktime = 0.; |
1709 | io_blocktime = 0.; |
1598 | timeout_blocktime = 0.; |
1710 | timeout_blocktime = 0.; |
… | |
… | |
1604 | #endif |
1716 | #endif |
1605 | #if EV_USE_INOTIFY |
1717 | #if EV_USE_INOTIFY |
1606 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1718 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1607 | #endif |
1719 | #endif |
1608 | #if EV_USE_SIGNALFD |
1720 | #if EV_USE_SIGNALFD |
1609 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1721 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1610 | #endif |
1722 | #endif |
1611 | |
1723 | |
1612 | if (!(flags & 0x0000ffffU)) |
1724 | if (!(flags & EVBACKEND_MASK)) |
1613 | flags |= ev_recommended_backends (); |
1725 | flags |= ev_recommended_backends (); |
1614 | |
1726 | |
|
|
1727 | #if EV_USE_IOCP |
|
|
1728 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1729 | #endif |
1615 | #if EV_USE_PORT |
1730 | #if EV_USE_PORT |
1616 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1731 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1617 | #endif |
1732 | #endif |
1618 | #if EV_USE_KQUEUE |
1733 | #if EV_USE_KQUEUE |
1619 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1734 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1628 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1743 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1629 | #endif |
1744 | #endif |
1630 | |
1745 | |
1631 | ev_prepare_init (&pending_w, pendingcb); |
1746 | ev_prepare_init (&pending_w, pendingcb); |
1632 | |
1747 | |
|
|
1748 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1633 | ev_init (&pipe_w, pipecb); |
1749 | ev_init (&pipe_w, pipecb); |
1634 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1750 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1751 | #endif |
1635 | } |
1752 | } |
1636 | } |
1753 | } |
1637 | |
1754 | |
1638 | /* free up a loop structure */ |
1755 | /* free up a loop structure */ |
1639 | static void noinline |
1756 | void |
1640 | loop_destroy (EV_P) |
1757 | ev_loop_destroy (EV_P) |
1641 | { |
1758 | { |
1642 | int i; |
1759 | int i; |
|
|
1760 | |
|
|
1761 | #if EV_MULTIPLICITY |
|
|
1762 | /* mimic free (0) */ |
|
|
1763 | if (!EV_A) |
|
|
1764 | return; |
|
|
1765 | #endif |
|
|
1766 | |
|
|
1767 | #if EV_CLEANUP_ENABLE |
|
|
1768 | /* queue cleanup watchers (and execute them) */ |
|
|
1769 | if (expect_false (cleanupcnt)) |
|
|
1770 | { |
|
|
1771 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1772 | EV_INVOKE_PENDING; |
|
|
1773 | } |
|
|
1774 | #endif |
|
|
1775 | |
|
|
1776 | #if EV_CHILD_ENABLE |
|
|
1777 | if (ev_is_active (&childev)) |
|
|
1778 | { |
|
|
1779 | ev_ref (EV_A); /* child watcher */ |
|
|
1780 | ev_signal_stop (EV_A_ &childev); |
|
|
1781 | } |
|
|
1782 | #endif |
1643 | |
1783 | |
1644 | if (ev_is_active (&pipe_w)) |
1784 | if (ev_is_active (&pipe_w)) |
1645 | { |
1785 | { |
1646 | /*ev_ref (EV_A);*/ |
1786 | /*ev_ref (EV_A);*/ |
1647 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1787 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1669 | #endif |
1809 | #endif |
1670 | |
1810 | |
1671 | if (backend_fd >= 0) |
1811 | if (backend_fd >= 0) |
1672 | close (backend_fd); |
1812 | close (backend_fd); |
1673 | |
1813 | |
|
|
1814 | #if EV_USE_IOCP |
|
|
1815 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1816 | #endif |
1674 | #if EV_USE_PORT |
1817 | #if EV_USE_PORT |
1675 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1818 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1676 | #endif |
1819 | #endif |
1677 | #if EV_USE_KQUEUE |
1820 | #if EV_USE_KQUEUE |
1678 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1821 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1705 | array_free (periodic, EMPTY); |
1848 | array_free (periodic, EMPTY); |
1706 | #endif |
1849 | #endif |
1707 | #if EV_FORK_ENABLE |
1850 | #if EV_FORK_ENABLE |
1708 | array_free (fork, EMPTY); |
1851 | array_free (fork, EMPTY); |
1709 | #endif |
1852 | #endif |
|
|
1853 | #if EV_CLEANUP_ENABLE |
|
|
1854 | array_free (cleanup, EMPTY); |
|
|
1855 | #endif |
1710 | array_free (prepare, EMPTY); |
1856 | array_free (prepare, EMPTY); |
1711 | array_free (check, EMPTY); |
1857 | array_free (check, EMPTY); |
1712 | #if EV_ASYNC_ENABLE |
1858 | #if EV_ASYNC_ENABLE |
1713 | array_free (async, EMPTY); |
1859 | array_free (async, EMPTY); |
1714 | #endif |
1860 | #endif |
1715 | |
1861 | |
1716 | backend = 0; |
1862 | backend = 0; |
|
|
1863 | |
|
|
1864 | #if EV_MULTIPLICITY |
|
|
1865 | if (ev_is_default_loop (EV_A)) |
|
|
1866 | #endif |
|
|
1867 | ev_default_loop_ptr = 0; |
|
|
1868 | #if EV_MULTIPLICITY |
|
|
1869 | else |
|
|
1870 | ev_free (EV_A); |
|
|
1871 | #endif |
1717 | } |
1872 | } |
1718 | |
1873 | |
1719 | #if EV_USE_INOTIFY |
1874 | #if EV_USE_INOTIFY |
1720 | inline_size void infy_fork (EV_P); |
1875 | inline_size void infy_fork (EV_P); |
1721 | #endif |
1876 | #endif |
… | |
… | |
1757 | { |
1912 | { |
1758 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1913 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1759 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1914 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1760 | } |
1915 | } |
1761 | |
1916 | |
|
|
1917 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1762 | evpipe_init (EV_A); |
1918 | evpipe_init (EV_A); |
1763 | /* now iterate over everything, in case we missed something */ |
1919 | /* now iterate over everything, in case we missed something */ |
1764 | pipecb (EV_A_ &pipe_w, EV_READ); |
1920 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1921 | #endif |
1765 | } |
1922 | } |
1766 | |
1923 | |
1767 | postfork = 0; |
1924 | postfork = 0; |
1768 | } |
1925 | } |
1769 | |
1926 | |
… | |
… | |
1778 | loop_init (EV_A_ flags); |
1935 | loop_init (EV_A_ flags); |
1779 | |
1936 | |
1780 | if (ev_backend (EV_A)) |
1937 | if (ev_backend (EV_A)) |
1781 | return EV_A; |
1938 | return EV_A; |
1782 | |
1939 | |
|
|
1940 | ev_free (EV_A); |
1783 | return 0; |
1941 | return 0; |
1784 | } |
1942 | } |
1785 | |
1943 | |
1786 | void |
|
|
1787 | ev_loop_destroy (EV_P) |
|
|
1788 | { |
|
|
1789 | loop_destroy (EV_A); |
|
|
1790 | ev_free (loop); |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | void |
|
|
1794 | ev_loop_fork (EV_P) |
|
|
1795 | { |
|
|
1796 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1797 | } |
|
|
1798 | #endif /* multiplicity */ |
1944 | #endif /* multiplicity */ |
1799 | |
1945 | |
1800 | #if EV_VERIFY |
1946 | #if EV_VERIFY |
1801 | static void noinline |
1947 | static void noinline |
1802 | verify_watcher (EV_P_ W w) |
1948 | verify_watcher (EV_P_ W w) |
… | |
… | |
1831 | verify_watcher (EV_A_ ws [cnt]); |
1977 | verify_watcher (EV_A_ ws [cnt]); |
1832 | } |
1978 | } |
1833 | } |
1979 | } |
1834 | #endif |
1980 | #endif |
1835 | |
1981 | |
1836 | #if EV_MINIMAL < 2 |
1982 | #if EV_FEATURE_API |
1837 | void |
1983 | void |
1838 | ev_loop_verify (EV_P) |
1984 | ev_verify (EV_P) |
1839 | { |
1985 | { |
1840 | #if EV_VERIFY |
1986 | #if EV_VERIFY |
1841 | int i; |
1987 | int i; |
1842 | WL w; |
1988 | WL w; |
1843 | |
1989 | |
… | |
… | |
1877 | #if EV_FORK_ENABLE |
2023 | #if EV_FORK_ENABLE |
1878 | assert (forkmax >= forkcnt); |
2024 | assert (forkmax >= forkcnt); |
1879 | array_verify (EV_A_ (W *)forks, forkcnt); |
2025 | array_verify (EV_A_ (W *)forks, forkcnt); |
1880 | #endif |
2026 | #endif |
1881 | |
2027 | |
|
|
2028 | #if EV_CLEANUP_ENABLE |
|
|
2029 | assert (cleanupmax >= cleanupcnt); |
|
|
2030 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2031 | #endif |
|
|
2032 | |
1882 | #if EV_ASYNC_ENABLE |
2033 | #if EV_ASYNC_ENABLE |
1883 | assert (asyncmax >= asynccnt); |
2034 | assert (asyncmax >= asynccnt); |
1884 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2035 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1885 | #endif |
2036 | #endif |
1886 | |
2037 | |
|
|
2038 | #if EV_PREPARE_ENABLE |
1887 | assert (preparemax >= preparecnt); |
2039 | assert (preparemax >= preparecnt); |
1888 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2040 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2041 | #endif |
1889 | |
2042 | |
|
|
2043 | #if EV_CHECK_ENABLE |
1890 | assert (checkmax >= checkcnt); |
2044 | assert (checkmax >= checkcnt); |
1891 | array_verify (EV_A_ (W *)checks, checkcnt); |
2045 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2046 | #endif |
1892 | |
2047 | |
1893 | # if 0 |
2048 | # if 0 |
|
|
2049 | #if EV_CHILD_ENABLE |
1894 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2050 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1895 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
2051 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2052 | #endif |
1896 | # endif |
2053 | # endif |
1897 | #endif |
2054 | #endif |
1898 | } |
2055 | } |
1899 | #endif |
2056 | #endif |
1900 | |
2057 | |
1901 | #if EV_MULTIPLICITY |
2058 | #if EV_MULTIPLICITY |
1902 | struct ev_loop * |
2059 | struct ev_loop * |
1903 | ev_default_loop_init (unsigned int flags) |
|
|
1904 | #else |
2060 | #else |
1905 | int |
2061 | int |
|
|
2062 | #endif |
1906 | ev_default_loop (unsigned int flags) |
2063 | ev_default_loop (unsigned int flags) |
1907 | #endif |
|
|
1908 | { |
2064 | { |
1909 | if (!ev_default_loop_ptr) |
2065 | if (!ev_default_loop_ptr) |
1910 | { |
2066 | { |
1911 | #if EV_MULTIPLICITY |
2067 | #if EV_MULTIPLICITY |
1912 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2068 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1916 | |
2072 | |
1917 | loop_init (EV_A_ flags); |
2073 | loop_init (EV_A_ flags); |
1918 | |
2074 | |
1919 | if (ev_backend (EV_A)) |
2075 | if (ev_backend (EV_A)) |
1920 | { |
2076 | { |
1921 | #ifndef _WIN32 |
2077 | #if EV_CHILD_ENABLE |
1922 | ev_signal_init (&childev, childcb, SIGCHLD); |
2078 | ev_signal_init (&childev, childcb, SIGCHLD); |
1923 | ev_set_priority (&childev, EV_MAXPRI); |
2079 | ev_set_priority (&childev, EV_MAXPRI); |
1924 | ev_signal_start (EV_A_ &childev); |
2080 | ev_signal_start (EV_A_ &childev); |
1925 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2081 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1926 | #endif |
2082 | #endif |
… | |
… | |
1931 | |
2087 | |
1932 | return ev_default_loop_ptr; |
2088 | return ev_default_loop_ptr; |
1933 | } |
2089 | } |
1934 | |
2090 | |
1935 | void |
2091 | void |
1936 | ev_default_destroy (void) |
2092 | ev_loop_fork (EV_P) |
1937 | { |
2093 | { |
1938 | #if EV_MULTIPLICITY |
|
|
1939 | EV_P = ev_default_loop_ptr; |
|
|
1940 | #endif |
|
|
1941 | |
|
|
1942 | ev_default_loop_ptr = 0; |
|
|
1943 | |
|
|
1944 | #ifndef _WIN32 |
|
|
1945 | ev_ref (EV_A); /* child watcher */ |
|
|
1946 | ev_signal_stop (EV_A_ &childev); |
|
|
1947 | #endif |
|
|
1948 | |
|
|
1949 | loop_destroy (EV_A); |
|
|
1950 | } |
|
|
1951 | |
|
|
1952 | void |
|
|
1953 | ev_default_fork (void) |
|
|
1954 | { |
|
|
1955 | #if EV_MULTIPLICITY |
|
|
1956 | EV_P = ev_default_loop_ptr; |
|
|
1957 | #endif |
|
|
1958 | |
|
|
1959 | postfork = 1; /* must be in line with ev_loop_fork */ |
2094 | postfork = 1; /* must be in line with ev_default_fork */ |
1960 | } |
2095 | } |
1961 | |
2096 | |
1962 | /*****************************************************************************/ |
2097 | /*****************************************************************************/ |
1963 | |
2098 | |
1964 | void |
2099 | void |
… | |
… | |
1986 | |
2121 | |
1987 | for (pri = NUMPRI; pri--; ) |
2122 | for (pri = NUMPRI; pri--; ) |
1988 | while (pendingcnt [pri]) |
2123 | while (pendingcnt [pri]) |
1989 | { |
2124 | { |
1990 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2125 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1991 | |
|
|
1992 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1993 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1994 | |
2126 | |
1995 | p->w->pending = 0; |
2127 | p->w->pending = 0; |
1996 | EV_CB_INVOKE (p->w, p->events); |
2128 | EV_CB_INVOKE (p->w, p->events); |
1997 | EV_FREQUENT_CHECK; |
2129 | EV_FREQUENT_CHECK; |
1998 | } |
2130 | } |
… | |
… | |
2055 | EV_FREQUENT_CHECK; |
2187 | EV_FREQUENT_CHECK; |
2056 | feed_reverse (EV_A_ (W)w); |
2188 | feed_reverse (EV_A_ (W)w); |
2057 | } |
2189 | } |
2058 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2190 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2059 | |
2191 | |
2060 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2192 | feed_reverse_done (EV_A_ EV_TIMER); |
2061 | } |
2193 | } |
2062 | } |
2194 | } |
2063 | |
2195 | |
2064 | #if EV_PERIODIC_ENABLE |
2196 | #if EV_PERIODIC_ENABLE |
|
|
2197 | |
|
|
2198 | inline_speed |
|
|
2199 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2200 | { |
|
|
2201 | /* TODO: use slow but potentially more correct incremental algo, */ |
|
|
2202 | /* also do not rely on ceil */ |
|
|
2203 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2204 | } |
|
|
2205 | |
2065 | /* make periodics pending */ |
2206 | /* make periodics pending */ |
2066 | inline_size void |
2207 | inline_size void |
2067 | periodics_reify (EV_P) |
2208 | periodics_reify (EV_P) |
2068 | { |
2209 | { |
2069 | EV_FREQUENT_CHECK; |
2210 | EV_FREQUENT_CHECK; |
… | |
… | |
2088 | ANHE_at_cache (periodics [HEAP0]); |
2229 | ANHE_at_cache (periodics [HEAP0]); |
2089 | downheap (periodics, periodiccnt, HEAP0); |
2230 | downheap (periodics, periodiccnt, HEAP0); |
2090 | } |
2231 | } |
2091 | else if (w->interval) |
2232 | else if (w->interval) |
2092 | { |
2233 | { |
2093 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2234 | periodic_recalc (EV_A_ w); |
|
|
2235 | |
2094 | /* if next trigger time is not sufficiently in the future, put it there */ |
2236 | /* if next trigger time is not sufficiently in the future, put it there */ |
2095 | /* this might happen because of floating point inexactness */ |
2237 | /* this might happen because of floating point inexactness */ |
2096 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2238 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2097 | { |
2239 | { |
2098 | ev_at (w) += w->interval; |
2240 | ev_at (w) += w->interval; |
… | |
… | |
2118 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2260 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2119 | } |
2261 | } |
2120 | } |
2262 | } |
2121 | |
2263 | |
2122 | /* simply recalculate all periodics */ |
2264 | /* simply recalculate all periodics */ |
2123 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2265 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2124 | static void noinline |
2266 | static void noinline |
2125 | periodics_reschedule (EV_P) |
2267 | periodics_reschedule (EV_P) |
2126 | { |
2268 | { |
2127 | int i; |
2269 | int i; |
2128 | |
2270 | |
… | |
… | |
2132 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2274 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2133 | |
2275 | |
2134 | if (w->reschedule_cb) |
2276 | if (w->reschedule_cb) |
2135 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2277 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2136 | else if (w->interval) |
2278 | else if (w->interval) |
2137 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2279 | periodic_recalc (EV_A_ w); |
2138 | |
2280 | |
2139 | ANHE_at_cache (periodics [i]); |
2281 | ANHE_at_cache (periodics [i]); |
2140 | } |
2282 | } |
2141 | |
2283 | |
2142 | reheap (periodics, periodiccnt); |
2284 | reheap (periodics, periodiccnt); |
… | |
… | |
2156 | ANHE_at_cache (*he); |
2298 | ANHE_at_cache (*he); |
2157 | } |
2299 | } |
2158 | } |
2300 | } |
2159 | |
2301 | |
2160 | /* fetch new monotonic and realtime times from the kernel */ |
2302 | /* fetch new monotonic and realtime times from the kernel */ |
2161 | /* also detetc if there was a timejump, and act accordingly */ |
2303 | /* also detect if there was a timejump, and act accordingly */ |
2162 | inline_speed void |
2304 | inline_speed void |
2163 | time_update (EV_P_ ev_tstamp max_block) |
2305 | time_update (EV_P_ ev_tstamp max_block) |
2164 | { |
2306 | { |
2165 | #if EV_USE_MONOTONIC |
2307 | #if EV_USE_MONOTONIC |
2166 | if (expect_true (have_monotonic)) |
2308 | if (expect_true (have_monotonic)) |
… | |
… | |
2224 | mn_now = ev_rt_now; |
2366 | mn_now = ev_rt_now; |
2225 | } |
2367 | } |
2226 | } |
2368 | } |
2227 | |
2369 | |
2228 | void |
2370 | void |
2229 | ev_loop (EV_P_ int flags) |
2371 | ev_run (EV_P_ int flags) |
2230 | { |
2372 | { |
2231 | #if EV_MINIMAL < 2 |
2373 | #if EV_FEATURE_API |
2232 | ++loop_depth; |
2374 | ++loop_depth; |
2233 | #endif |
2375 | #endif |
2234 | |
2376 | |
2235 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2377 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2236 | |
2378 | |
2237 | loop_done = EVUNLOOP_CANCEL; |
2379 | loop_done = EVBREAK_CANCEL; |
2238 | |
2380 | |
2239 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2381 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2240 | |
2382 | |
2241 | do |
2383 | do |
2242 | { |
2384 | { |
2243 | #if EV_VERIFY >= 2 |
2385 | #if EV_VERIFY >= 2 |
2244 | ev_loop_verify (EV_A); |
2386 | ev_verify (EV_A); |
2245 | #endif |
2387 | #endif |
2246 | |
2388 | |
2247 | #ifndef _WIN32 |
2389 | #ifndef _WIN32 |
2248 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2390 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2249 | if (expect_false (getpid () != curpid)) |
2391 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2261 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2403 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2262 | EV_INVOKE_PENDING; |
2404 | EV_INVOKE_PENDING; |
2263 | } |
2405 | } |
2264 | #endif |
2406 | #endif |
2265 | |
2407 | |
|
|
2408 | #if EV_PREPARE_ENABLE |
2266 | /* queue prepare watchers (and execute them) */ |
2409 | /* queue prepare watchers (and execute them) */ |
2267 | if (expect_false (preparecnt)) |
2410 | if (expect_false (preparecnt)) |
2268 | { |
2411 | { |
2269 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2412 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2270 | EV_INVOKE_PENDING; |
2413 | EV_INVOKE_PENDING; |
2271 | } |
2414 | } |
|
|
2415 | #endif |
2272 | |
2416 | |
2273 | if (expect_false (loop_done)) |
2417 | if (expect_false (loop_done)) |
2274 | break; |
2418 | break; |
2275 | |
2419 | |
2276 | /* we might have forked, so reify kernel state if necessary */ |
2420 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2283 | /* calculate blocking time */ |
2427 | /* calculate blocking time */ |
2284 | { |
2428 | { |
2285 | ev_tstamp waittime = 0.; |
2429 | ev_tstamp waittime = 0.; |
2286 | ev_tstamp sleeptime = 0.; |
2430 | ev_tstamp sleeptime = 0.; |
2287 | |
2431 | |
|
|
2432 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2433 | ev_tstamp prev_mn_now = mn_now; |
|
|
2434 | |
|
|
2435 | /* update time to cancel out callback processing overhead */ |
|
|
2436 | time_update (EV_A_ 1e100); |
|
|
2437 | |
2288 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2438 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2289 | { |
2439 | { |
2290 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2291 | ev_tstamp prev_mn_now = mn_now; |
|
|
2292 | |
|
|
2293 | /* update time to cancel out callback processing overhead */ |
|
|
2294 | time_update (EV_A_ 1e100); |
|
|
2295 | |
|
|
2296 | waittime = MAX_BLOCKTIME; |
2440 | waittime = MAX_BLOCKTIME; |
2297 | |
2441 | |
2298 | if (timercnt) |
2442 | if (timercnt) |
2299 | { |
2443 | { |
2300 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2444 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2327 | waittime -= sleeptime; |
2471 | waittime -= sleeptime; |
2328 | } |
2472 | } |
2329 | } |
2473 | } |
2330 | } |
2474 | } |
2331 | |
2475 | |
2332 | #if EV_MINIMAL < 2 |
2476 | #if EV_FEATURE_API |
2333 | ++loop_count; |
2477 | ++loop_count; |
2334 | #endif |
2478 | #endif |
2335 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2479 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2336 | backend_poll (EV_A_ waittime); |
2480 | backend_poll (EV_A_ waittime); |
2337 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2481 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2338 | |
2482 | |
2339 | /* update ev_rt_now, do magic */ |
2483 | /* update ev_rt_now, do magic */ |
2340 | time_update (EV_A_ waittime + sleeptime); |
2484 | time_update (EV_A_ waittime + sleeptime); |
2341 | } |
2485 | } |
2342 | |
2486 | |
… | |
… | |
2349 | #if EV_IDLE_ENABLE |
2493 | #if EV_IDLE_ENABLE |
2350 | /* queue idle watchers unless other events are pending */ |
2494 | /* queue idle watchers unless other events are pending */ |
2351 | idle_reify (EV_A); |
2495 | idle_reify (EV_A); |
2352 | #endif |
2496 | #endif |
2353 | |
2497 | |
|
|
2498 | #if EV_CHECK_ENABLE |
2354 | /* queue check watchers, to be executed first */ |
2499 | /* queue check watchers, to be executed first */ |
2355 | if (expect_false (checkcnt)) |
2500 | if (expect_false (checkcnt)) |
2356 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2501 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2502 | #endif |
2357 | |
2503 | |
2358 | EV_INVOKE_PENDING; |
2504 | EV_INVOKE_PENDING; |
2359 | } |
2505 | } |
2360 | while (expect_true ( |
2506 | while (expect_true ( |
2361 | activecnt |
2507 | activecnt |
2362 | && !loop_done |
2508 | && !loop_done |
2363 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2509 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2364 | )); |
2510 | )); |
2365 | |
2511 | |
2366 | if (loop_done == EVUNLOOP_ONE) |
2512 | if (loop_done == EVBREAK_ONE) |
2367 | loop_done = EVUNLOOP_CANCEL; |
2513 | loop_done = EVBREAK_CANCEL; |
2368 | |
2514 | |
2369 | #if EV_MINIMAL < 2 |
2515 | #if EV_FEATURE_API |
2370 | --loop_depth; |
2516 | --loop_depth; |
2371 | #endif |
2517 | #endif |
2372 | } |
2518 | } |
2373 | |
2519 | |
2374 | void |
2520 | void |
2375 | ev_unloop (EV_P_ int how) |
2521 | ev_break (EV_P_ int how) |
2376 | { |
2522 | { |
2377 | loop_done = how; |
2523 | loop_done = how; |
2378 | } |
2524 | } |
2379 | |
2525 | |
2380 | void |
2526 | void |
… | |
… | |
2500 | |
2646 | |
2501 | if (expect_false (ev_is_active (w))) |
2647 | if (expect_false (ev_is_active (w))) |
2502 | return; |
2648 | return; |
2503 | |
2649 | |
2504 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2650 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2505 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2651 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2506 | |
2652 | |
2507 | EV_FREQUENT_CHECK; |
2653 | EV_FREQUENT_CHECK; |
2508 | |
2654 | |
2509 | ev_start (EV_A_ (W)w, 1); |
2655 | ev_start (EV_A_ (W)w, 1); |
2510 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2656 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2528 | EV_FREQUENT_CHECK; |
2674 | EV_FREQUENT_CHECK; |
2529 | |
2675 | |
2530 | wlist_del (&anfds[w->fd].head, (WL)w); |
2676 | wlist_del (&anfds[w->fd].head, (WL)w); |
2531 | ev_stop (EV_A_ (W)w); |
2677 | ev_stop (EV_A_ (W)w); |
2532 | |
2678 | |
2533 | fd_change (EV_A_ w->fd, 1); |
2679 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2534 | |
2680 | |
2535 | EV_FREQUENT_CHECK; |
2681 | EV_FREQUENT_CHECK; |
2536 | } |
2682 | } |
2537 | |
2683 | |
2538 | void noinline |
2684 | void noinline |
… | |
… | |
2580 | timers [active] = timers [timercnt + HEAP0]; |
2726 | timers [active] = timers [timercnt + HEAP0]; |
2581 | adjustheap (timers, timercnt, active); |
2727 | adjustheap (timers, timercnt, active); |
2582 | } |
2728 | } |
2583 | } |
2729 | } |
2584 | |
2730 | |
2585 | EV_FREQUENT_CHECK; |
|
|
2586 | |
|
|
2587 | ev_at (w) -= mn_now; |
2731 | ev_at (w) -= mn_now; |
2588 | |
2732 | |
2589 | ev_stop (EV_A_ (W)w); |
2733 | ev_stop (EV_A_ (W)w); |
|
|
2734 | |
|
|
2735 | EV_FREQUENT_CHECK; |
2590 | } |
2736 | } |
2591 | |
2737 | |
2592 | void noinline |
2738 | void noinline |
2593 | ev_timer_again (EV_P_ ev_timer *w) |
2739 | ev_timer_again (EV_P_ ev_timer *w) |
2594 | { |
2740 | { |
… | |
… | |
2630 | if (w->reschedule_cb) |
2776 | if (w->reschedule_cb) |
2631 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2777 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2632 | else if (w->interval) |
2778 | else if (w->interval) |
2633 | { |
2779 | { |
2634 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2780 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2635 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2781 | periodic_recalc (EV_A_ w); |
2636 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2637 | } |
2782 | } |
2638 | else |
2783 | else |
2639 | ev_at (w) = w->offset; |
2784 | ev_at (w) = w->offset; |
2640 | |
2785 | |
2641 | EV_FREQUENT_CHECK; |
2786 | EV_FREQUENT_CHECK; |
… | |
… | |
2673 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2818 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2674 | adjustheap (periodics, periodiccnt, active); |
2819 | adjustheap (periodics, periodiccnt, active); |
2675 | } |
2820 | } |
2676 | } |
2821 | } |
2677 | |
2822 | |
2678 | EV_FREQUENT_CHECK; |
|
|
2679 | |
|
|
2680 | ev_stop (EV_A_ (W)w); |
2823 | ev_stop (EV_A_ (W)w); |
|
|
2824 | |
|
|
2825 | EV_FREQUENT_CHECK; |
2681 | } |
2826 | } |
2682 | |
2827 | |
2683 | void noinline |
2828 | void noinline |
2684 | ev_periodic_again (EV_P_ ev_periodic *w) |
2829 | ev_periodic_again (EV_P_ ev_periodic *w) |
2685 | { |
2830 | { |
… | |
… | |
2690 | #endif |
2835 | #endif |
2691 | |
2836 | |
2692 | #ifndef SA_RESTART |
2837 | #ifndef SA_RESTART |
2693 | # define SA_RESTART 0 |
2838 | # define SA_RESTART 0 |
2694 | #endif |
2839 | #endif |
|
|
2840 | |
|
|
2841 | #if EV_SIGNAL_ENABLE |
2695 | |
2842 | |
2696 | void noinline |
2843 | void noinline |
2697 | ev_signal_start (EV_P_ ev_signal *w) |
2844 | ev_signal_start (EV_P_ ev_signal *w) |
2698 | { |
2845 | { |
2699 | if (expect_false (ev_is_active (w))) |
2846 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2746 | if (!((WL)w)->next) |
2893 | if (!((WL)w)->next) |
2747 | # if EV_USE_SIGNALFD |
2894 | # if EV_USE_SIGNALFD |
2748 | if (sigfd < 0) /*TODO*/ |
2895 | if (sigfd < 0) /*TODO*/ |
2749 | # endif |
2896 | # endif |
2750 | { |
2897 | { |
2751 | # if _WIN32 |
2898 | # ifdef _WIN32 |
2752 | evpipe_init (EV_A); |
2899 | evpipe_init (EV_A); |
2753 | |
2900 | |
2754 | signal (w->signum, ev_sighandler); |
2901 | signal (w->signum, ev_sighandler); |
2755 | # else |
2902 | # else |
2756 | struct sigaction sa; |
2903 | struct sigaction sa; |
… | |
… | |
2760 | sa.sa_handler = ev_sighandler; |
2907 | sa.sa_handler = ev_sighandler; |
2761 | sigfillset (&sa.sa_mask); |
2908 | sigfillset (&sa.sa_mask); |
2762 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2909 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2763 | sigaction (w->signum, &sa, 0); |
2910 | sigaction (w->signum, &sa, 0); |
2764 | |
2911 | |
|
|
2912 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2913 | { |
2765 | sigemptyset (&sa.sa_mask); |
2914 | sigemptyset (&sa.sa_mask); |
2766 | sigaddset (&sa.sa_mask, w->signum); |
2915 | sigaddset (&sa.sa_mask, w->signum); |
2767 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2916 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2917 | } |
2768 | #endif |
2918 | #endif |
2769 | } |
2919 | } |
2770 | |
2920 | |
2771 | EV_FREQUENT_CHECK; |
2921 | EV_FREQUENT_CHECK; |
2772 | } |
2922 | } |
… | |
… | |
2789 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2939 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2790 | #endif |
2940 | #endif |
2791 | #if EV_USE_SIGNALFD |
2941 | #if EV_USE_SIGNALFD |
2792 | if (sigfd >= 0) |
2942 | if (sigfd >= 0) |
2793 | { |
2943 | { |
2794 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2944 | sigset_t ss; |
|
|
2945 | |
|
|
2946 | sigemptyset (&ss); |
|
|
2947 | sigaddset (&ss, w->signum); |
2795 | sigdelset (&sigfd_set, w->signum); |
2948 | sigdelset (&sigfd_set, w->signum); |
|
|
2949 | |
2796 | signalfd (sigfd, &sigfd_set, 0); |
2950 | signalfd (sigfd, &sigfd_set, 0); |
2797 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2951 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2798 | /*TODO: maybe unblock signal? */ |
|
|
2799 | } |
2952 | } |
2800 | else |
2953 | else |
2801 | #endif |
2954 | #endif |
2802 | signal (w->signum, SIG_DFL); |
2955 | signal (w->signum, SIG_DFL); |
2803 | } |
2956 | } |
2804 | |
2957 | |
2805 | EV_FREQUENT_CHECK; |
2958 | EV_FREQUENT_CHECK; |
2806 | } |
2959 | } |
2807 | |
2960 | |
|
|
2961 | #endif |
|
|
2962 | |
|
|
2963 | #if EV_CHILD_ENABLE |
|
|
2964 | |
2808 | void |
2965 | void |
2809 | ev_child_start (EV_P_ ev_child *w) |
2966 | ev_child_start (EV_P_ ev_child *w) |
2810 | { |
2967 | { |
2811 | #if EV_MULTIPLICITY |
2968 | #if EV_MULTIPLICITY |
2812 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2969 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2815 | return; |
2972 | return; |
2816 | |
2973 | |
2817 | EV_FREQUENT_CHECK; |
2974 | EV_FREQUENT_CHECK; |
2818 | |
2975 | |
2819 | ev_start (EV_A_ (W)w, 1); |
2976 | ev_start (EV_A_ (W)w, 1); |
2820 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2977 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2821 | |
2978 | |
2822 | EV_FREQUENT_CHECK; |
2979 | EV_FREQUENT_CHECK; |
2823 | } |
2980 | } |
2824 | |
2981 | |
2825 | void |
2982 | void |
… | |
… | |
2829 | if (expect_false (!ev_is_active (w))) |
2986 | if (expect_false (!ev_is_active (w))) |
2830 | return; |
2987 | return; |
2831 | |
2988 | |
2832 | EV_FREQUENT_CHECK; |
2989 | EV_FREQUENT_CHECK; |
2833 | |
2990 | |
2834 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2991 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2835 | ev_stop (EV_A_ (W)w); |
2992 | ev_stop (EV_A_ (W)w); |
2836 | |
2993 | |
2837 | EV_FREQUENT_CHECK; |
2994 | EV_FREQUENT_CHECK; |
2838 | } |
2995 | } |
|
|
2996 | |
|
|
2997 | #endif |
2839 | |
2998 | |
2840 | #if EV_STAT_ENABLE |
2999 | #if EV_STAT_ENABLE |
2841 | |
3000 | |
2842 | # ifdef _WIN32 |
3001 | # ifdef _WIN32 |
2843 | # undef lstat |
3002 | # undef lstat |
… | |
… | |
2849 | #define MIN_STAT_INTERVAL 0.1074891 |
3008 | #define MIN_STAT_INTERVAL 0.1074891 |
2850 | |
3009 | |
2851 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3010 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2852 | |
3011 | |
2853 | #if EV_USE_INOTIFY |
3012 | #if EV_USE_INOTIFY |
2854 | # define EV_INOTIFY_BUFSIZE 8192 |
3013 | |
|
|
3014 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3015 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2855 | |
3016 | |
2856 | static void noinline |
3017 | static void noinline |
2857 | infy_add (EV_P_ ev_stat *w) |
3018 | infy_add (EV_P_ ev_stat *w) |
2858 | { |
3019 | { |
2859 | 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); |
3020 | 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); |
2860 | |
3021 | |
2861 | if (w->wd < 0) |
3022 | if (w->wd >= 0) |
|
|
3023 | { |
|
|
3024 | struct statfs sfs; |
|
|
3025 | |
|
|
3026 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3027 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3028 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3029 | |
|
|
3030 | if (!fs_2625) |
|
|
3031 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3032 | else if (!statfs (w->path, &sfs) |
|
|
3033 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3034 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3035 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3036 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3037 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3038 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3039 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3040 | else |
|
|
3041 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2862 | { |
3042 | } |
|
|
3043 | else |
|
|
3044 | { |
|
|
3045 | /* can't use inotify, continue to stat */ |
2863 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3046 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2864 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2865 | |
3047 | |
2866 | /* monitor some parent directory for speedup hints */ |
3048 | /* if path is not there, monitor some parent directory for speedup hints */ |
2867 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3049 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2868 | /* but an efficiency issue only */ |
3050 | /* but an efficiency issue only */ |
2869 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3051 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2870 | { |
3052 | { |
2871 | char path [4096]; |
3053 | char path [4096]; |
… | |
… | |
2887 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3069 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2888 | } |
3070 | } |
2889 | } |
3071 | } |
2890 | |
3072 | |
2891 | if (w->wd >= 0) |
3073 | if (w->wd >= 0) |
2892 | { |
|
|
2893 | struct statfs sfs; |
|
|
2894 | |
|
|
2895 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3074 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2896 | |
3075 | |
2897 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3076 | /* now re-arm timer, if required */ |
2898 | /* unless the filesystem is known to be local, we therefore still poll */ |
3077 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2899 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2900 | |
|
|
2901 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2902 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2903 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2904 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2905 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2906 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2907 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2908 | return; |
|
|
2909 | |
|
|
2910 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2911 | ev_timer_again (EV_A_ &w->timer); |
3078 | ev_timer_again (EV_A_ &w->timer); |
2912 | } |
3079 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2913 | } |
3080 | } |
2914 | |
3081 | |
2915 | static void noinline |
3082 | static void noinline |
2916 | infy_del (EV_P_ ev_stat *w) |
3083 | infy_del (EV_P_ ev_stat *w) |
2917 | { |
3084 | { |
… | |
… | |
2920 | |
3087 | |
2921 | if (wd < 0) |
3088 | if (wd < 0) |
2922 | return; |
3089 | return; |
2923 | |
3090 | |
2924 | w->wd = -2; |
3091 | w->wd = -2; |
2925 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3092 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2926 | wlist_del (&fs_hash [slot].head, (WL)w); |
3093 | wlist_del (&fs_hash [slot].head, (WL)w); |
2927 | |
3094 | |
2928 | /* remove this watcher, if others are watching it, they will rearm */ |
3095 | /* remove this watcher, if others are watching it, they will rearm */ |
2929 | inotify_rm_watch (fs_fd, wd); |
3096 | inotify_rm_watch (fs_fd, wd); |
2930 | } |
3097 | } |
… | |
… | |
2932 | static void noinline |
3099 | static void noinline |
2933 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3100 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2934 | { |
3101 | { |
2935 | if (slot < 0) |
3102 | if (slot < 0) |
2936 | /* overflow, need to check for all hash slots */ |
3103 | /* overflow, need to check for all hash slots */ |
2937 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3104 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2938 | infy_wd (EV_A_ slot, wd, ev); |
3105 | infy_wd (EV_A_ slot, wd, ev); |
2939 | else |
3106 | else |
2940 | { |
3107 | { |
2941 | WL w_; |
3108 | WL w_; |
2942 | |
3109 | |
2943 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3110 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2944 | { |
3111 | { |
2945 | ev_stat *w = (ev_stat *)w_; |
3112 | ev_stat *w = (ev_stat *)w_; |
2946 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3113 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2947 | |
3114 | |
2948 | if (w->wd == wd || wd == -1) |
3115 | if (w->wd == wd || wd == -1) |
2949 | { |
3116 | { |
2950 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3117 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2951 | { |
3118 | { |
2952 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3119 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2953 | w->wd = -1; |
3120 | w->wd = -1; |
2954 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3121 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2955 | } |
3122 | } |
2956 | |
3123 | |
2957 | stat_timer_cb (EV_A_ &w->timer, 0); |
3124 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2962 | |
3129 | |
2963 | static void |
3130 | static void |
2964 | infy_cb (EV_P_ ev_io *w, int revents) |
3131 | infy_cb (EV_P_ ev_io *w, int revents) |
2965 | { |
3132 | { |
2966 | char buf [EV_INOTIFY_BUFSIZE]; |
3133 | char buf [EV_INOTIFY_BUFSIZE]; |
2967 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2968 | int ofs; |
3134 | int ofs; |
2969 | int len = read (fs_fd, buf, sizeof (buf)); |
3135 | int len = read (fs_fd, buf, sizeof (buf)); |
2970 | |
3136 | |
2971 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3137 | for (ofs = 0; ofs < len; ) |
|
|
3138 | { |
|
|
3139 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2972 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3140 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3141 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3142 | } |
2973 | } |
3143 | } |
2974 | |
3144 | |
2975 | inline_size void |
3145 | inline_size void |
2976 | check_2625 (EV_P) |
3146 | ev_check_2625 (EV_P) |
2977 | { |
3147 | { |
2978 | /* kernels < 2.6.25 are borked |
3148 | /* kernels < 2.6.25 are borked |
2979 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3149 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2980 | */ |
3150 | */ |
2981 | struct utsname buf; |
3151 | if (ev_linux_version () < 0x020619) |
2982 | int major, minor, micro; |
|
|
2983 | |
|
|
2984 | if (uname (&buf)) |
|
|
2985 | return; |
|
|
2986 | |
|
|
2987 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2988 | return; |
|
|
2989 | |
|
|
2990 | if (major < 2 |
|
|
2991 | || (major == 2 && minor < 6) |
|
|
2992 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2993 | return; |
3152 | return; |
2994 | |
3153 | |
2995 | fs_2625 = 1; |
3154 | fs_2625 = 1; |
2996 | } |
3155 | } |
2997 | |
3156 | |
… | |
… | |
3012 | if (fs_fd != -2) |
3171 | if (fs_fd != -2) |
3013 | return; |
3172 | return; |
3014 | |
3173 | |
3015 | fs_fd = -1; |
3174 | fs_fd = -1; |
3016 | |
3175 | |
3017 | check_2625 (EV_A); |
3176 | ev_check_2625 (EV_A); |
3018 | |
3177 | |
3019 | fs_fd = infy_newfd (); |
3178 | fs_fd = infy_newfd (); |
3020 | |
3179 | |
3021 | if (fs_fd >= 0) |
3180 | if (fs_fd >= 0) |
3022 | { |
3181 | { |
… | |
… | |
3047 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3206 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3048 | ev_io_start (EV_A_ &fs_w); |
3207 | ev_io_start (EV_A_ &fs_w); |
3049 | ev_unref (EV_A); |
3208 | ev_unref (EV_A); |
3050 | } |
3209 | } |
3051 | |
3210 | |
3052 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3211 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3053 | { |
3212 | { |
3054 | WL w_ = fs_hash [slot].head; |
3213 | WL w_ = fs_hash [slot].head; |
3055 | fs_hash [slot].head = 0; |
3214 | fs_hash [slot].head = 0; |
3056 | |
3215 | |
3057 | while (w_) |
3216 | while (w_) |
… | |
… | |
3062 | w->wd = -1; |
3221 | w->wd = -1; |
3063 | |
3222 | |
3064 | if (fs_fd >= 0) |
3223 | if (fs_fd >= 0) |
3065 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3224 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3066 | else |
3225 | else |
|
|
3226 | { |
|
|
3227 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3228 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3067 | ev_timer_again (EV_A_ &w->timer); |
3229 | ev_timer_again (EV_A_ &w->timer); |
|
|
3230 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3231 | } |
3068 | } |
3232 | } |
3069 | } |
3233 | } |
3070 | } |
3234 | } |
3071 | |
3235 | |
3072 | #endif |
3236 | #endif |
… | |
… | |
3089 | static void noinline |
3253 | static void noinline |
3090 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3254 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3091 | { |
3255 | { |
3092 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3256 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3093 | |
3257 | |
3094 | /* we copy this here each the time so that */ |
3258 | ev_statdata prev = w->attr; |
3095 | /* prev has the old value when the callback gets invoked */ |
|
|
3096 | w->prev = w->attr; |
|
|
3097 | ev_stat_stat (EV_A_ w); |
3259 | ev_stat_stat (EV_A_ w); |
3098 | |
3260 | |
3099 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3261 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3100 | if ( |
3262 | if ( |
3101 | w->prev.st_dev != w->attr.st_dev |
3263 | prev.st_dev != w->attr.st_dev |
3102 | || w->prev.st_ino != w->attr.st_ino |
3264 | || prev.st_ino != w->attr.st_ino |
3103 | || w->prev.st_mode != w->attr.st_mode |
3265 | || prev.st_mode != w->attr.st_mode |
3104 | || w->prev.st_nlink != w->attr.st_nlink |
3266 | || prev.st_nlink != w->attr.st_nlink |
3105 | || w->prev.st_uid != w->attr.st_uid |
3267 | || prev.st_uid != w->attr.st_uid |
3106 | || w->prev.st_gid != w->attr.st_gid |
3268 | || prev.st_gid != w->attr.st_gid |
3107 | || w->prev.st_rdev != w->attr.st_rdev |
3269 | || prev.st_rdev != w->attr.st_rdev |
3108 | || w->prev.st_size != w->attr.st_size |
3270 | || prev.st_size != w->attr.st_size |
3109 | || w->prev.st_atime != w->attr.st_atime |
3271 | || prev.st_atime != w->attr.st_atime |
3110 | || w->prev.st_mtime != w->attr.st_mtime |
3272 | || prev.st_mtime != w->attr.st_mtime |
3111 | || w->prev.st_ctime != w->attr.st_ctime |
3273 | || prev.st_ctime != w->attr.st_ctime |
3112 | ) { |
3274 | ) { |
|
|
3275 | /* we only update w->prev on actual differences */ |
|
|
3276 | /* in case we test more often than invoke the callback, */ |
|
|
3277 | /* to ensure that prev is always different to attr */ |
|
|
3278 | w->prev = prev; |
|
|
3279 | |
3113 | #if EV_USE_INOTIFY |
3280 | #if EV_USE_INOTIFY |
3114 | if (fs_fd >= 0) |
3281 | if (fs_fd >= 0) |
3115 | { |
3282 | { |
3116 | infy_del (EV_A_ w); |
3283 | infy_del (EV_A_ w); |
3117 | infy_add (EV_A_ w); |
3284 | infy_add (EV_A_ w); |
… | |
… | |
3142 | |
3309 | |
3143 | if (fs_fd >= 0) |
3310 | if (fs_fd >= 0) |
3144 | infy_add (EV_A_ w); |
3311 | infy_add (EV_A_ w); |
3145 | else |
3312 | else |
3146 | #endif |
3313 | #endif |
|
|
3314 | { |
3147 | ev_timer_again (EV_A_ &w->timer); |
3315 | ev_timer_again (EV_A_ &w->timer); |
|
|
3316 | ev_unref (EV_A); |
|
|
3317 | } |
3148 | |
3318 | |
3149 | ev_start (EV_A_ (W)w, 1); |
3319 | ev_start (EV_A_ (W)w, 1); |
3150 | |
3320 | |
3151 | EV_FREQUENT_CHECK; |
3321 | EV_FREQUENT_CHECK; |
3152 | } |
3322 | } |
… | |
… | |
3161 | EV_FREQUENT_CHECK; |
3331 | EV_FREQUENT_CHECK; |
3162 | |
3332 | |
3163 | #if EV_USE_INOTIFY |
3333 | #if EV_USE_INOTIFY |
3164 | infy_del (EV_A_ w); |
3334 | infy_del (EV_A_ w); |
3165 | #endif |
3335 | #endif |
|
|
3336 | |
|
|
3337 | if (ev_is_active (&w->timer)) |
|
|
3338 | { |
|
|
3339 | ev_ref (EV_A); |
3166 | ev_timer_stop (EV_A_ &w->timer); |
3340 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3341 | } |
3167 | |
3342 | |
3168 | ev_stop (EV_A_ (W)w); |
3343 | ev_stop (EV_A_ (W)w); |
3169 | |
3344 | |
3170 | EV_FREQUENT_CHECK; |
3345 | EV_FREQUENT_CHECK; |
3171 | } |
3346 | } |
… | |
… | |
3216 | |
3391 | |
3217 | EV_FREQUENT_CHECK; |
3392 | EV_FREQUENT_CHECK; |
3218 | } |
3393 | } |
3219 | #endif |
3394 | #endif |
3220 | |
3395 | |
|
|
3396 | #if EV_PREPARE_ENABLE |
3221 | void |
3397 | void |
3222 | ev_prepare_start (EV_P_ ev_prepare *w) |
3398 | ev_prepare_start (EV_P_ ev_prepare *w) |
3223 | { |
3399 | { |
3224 | if (expect_false (ev_is_active (w))) |
3400 | if (expect_false (ev_is_active (w))) |
3225 | return; |
3401 | return; |
… | |
… | |
3251 | |
3427 | |
3252 | ev_stop (EV_A_ (W)w); |
3428 | ev_stop (EV_A_ (W)w); |
3253 | |
3429 | |
3254 | EV_FREQUENT_CHECK; |
3430 | EV_FREQUENT_CHECK; |
3255 | } |
3431 | } |
|
|
3432 | #endif |
3256 | |
3433 | |
|
|
3434 | #if EV_CHECK_ENABLE |
3257 | void |
3435 | void |
3258 | ev_check_start (EV_P_ ev_check *w) |
3436 | ev_check_start (EV_P_ ev_check *w) |
3259 | { |
3437 | { |
3260 | if (expect_false (ev_is_active (w))) |
3438 | if (expect_false (ev_is_active (w))) |
3261 | return; |
3439 | return; |
… | |
… | |
3287 | |
3465 | |
3288 | ev_stop (EV_A_ (W)w); |
3466 | ev_stop (EV_A_ (W)w); |
3289 | |
3467 | |
3290 | EV_FREQUENT_CHECK; |
3468 | EV_FREQUENT_CHECK; |
3291 | } |
3469 | } |
|
|
3470 | #endif |
3292 | |
3471 | |
3293 | #if EV_EMBED_ENABLE |
3472 | #if EV_EMBED_ENABLE |
3294 | void noinline |
3473 | void noinline |
3295 | ev_embed_sweep (EV_P_ ev_embed *w) |
3474 | ev_embed_sweep (EV_P_ ev_embed *w) |
3296 | { |
3475 | { |
3297 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3476 | ev_run (w->other, EVRUN_NOWAIT); |
3298 | } |
3477 | } |
3299 | |
3478 | |
3300 | static void |
3479 | static void |
3301 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3480 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3302 | { |
3481 | { |
3303 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3482 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3304 | |
3483 | |
3305 | if (ev_cb (w)) |
3484 | if (ev_cb (w)) |
3306 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3485 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3307 | else |
3486 | else |
3308 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3487 | ev_run (w->other, EVRUN_NOWAIT); |
3309 | } |
3488 | } |
3310 | |
3489 | |
3311 | static void |
3490 | static void |
3312 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3491 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3313 | { |
3492 | { |
… | |
… | |
3317 | EV_P = w->other; |
3496 | EV_P = w->other; |
3318 | |
3497 | |
3319 | while (fdchangecnt) |
3498 | while (fdchangecnt) |
3320 | { |
3499 | { |
3321 | fd_reify (EV_A); |
3500 | fd_reify (EV_A); |
3322 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3501 | ev_run (EV_A_ EVRUN_NOWAIT); |
3323 | } |
3502 | } |
3324 | } |
3503 | } |
3325 | } |
3504 | } |
3326 | |
3505 | |
3327 | static void |
3506 | static void |
… | |
… | |
3333 | |
3512 | |
3334 | { |
3513 | { |
3335 | EV_P = w->other; |
3514 | EV_P = w->other; |
3336 | |
3515 | |
3337 | ev_loop_fork (EV_A); |
3516 | ev_loop_fork (EV_A); |
3338 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3517 | ev_run (EV_A_ EVRUN_NOWAIT); |
3339 | } |
3518 | } |
3340 | |
3519 | |
3341 | ev_embed_start (EV_A_ w); |
3520 | ev_embed_start (EV_A_ w); |
3342 | } |
3521 | } |
3343 | |
3522 | |
… | |
… | |
3391 | |
3570 | |
3392 | ev_io_stop (EV_A_ &w->io); |
3571 | ev_io_stop (EV_A_ &w->io); |
3393 | ev_prepare_stop (EV_A_ &w->prepare); |
3572 | ev_prepare_stop (EV_A_ &w->prepare); |
3394 | ev_fork_stop (EV_A_ &w->fork); |
3573 | ev_fork_stop (EV_A_ &w->fork); |
3395 | |
3574 | |
|
|
3575 | ev_stop (EV_A_ (W)w); |
|
|
3576 | |
3396 | EV_FREQUENT_CHECK; |
3577 | EV_FREQUENT_CHECK; |
3397 | } |
3578 | } |
3398 | #endif |
3579 | #endif |
3399 | |
3580 | |
3400 | #if EV_FORK_ENABLE |
3581 | #if EV_FORK_ENABLE |
… | |
… | |
3433 | |
3614 | |
3434 | EV_FREQUENT_CHECK; |
3615 | EV_FREQUENT_CHECK; |
3435 | } |
3616 | } |
3436 | #endif |
3617 | #endif |
3437 | |
3618 | |
3438 | #if EV_ASYNC_ENABLE |
3619 | #if EV_CLEANUP_ENABLE |
3439 | void |
3620 | void |
3440 | ev_async_start (EV_P_ ev_async *w) |
3621 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3441 | { |
3622 | { |
3442 | if (expect_false (ev_is_active (w))) |
3623 | if (expect_false (ev_is_active (w))) |
3443 | return; |
3624 | return; |
|
|
3625 | |
|
|
3626 | EV_FREQUENT_CHECK; |
|
|
3627 | |
|
|
3628 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3629 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3630 | cleanups [cleanupcnt - 1] = w; |
|
|
3631 | |
|
|
3632 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3633 | ev_unref (EV_A); |
|
|
3634 | EV_FREQUENT_CHECK; |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | void |
|
|
3638 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3639 | { |
|
|
3640 | clear_pending (EV_A_ (W)w); |
|
|
3641 | if (expect_false (!ev_is_active (w))) |
|
|
3642 | return; |
|
|
3643 | |
|
|
3644 | EV_FREQUENT_CHECK; |
|
|
3645 | ev_ref (EV_A); |
|
|
3646 | |
|
|
3647 | { |
|
|
3648 | int active = ev_active (w); |
|
|
3649 | |
|
|
3650 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3651 | ev_active (cleanups [active - 1]) = active; |
|
|
3652 | } |
|
|
3653 | |
|
|
3654 | ev_stop (EV_A_ (W)w); |
|
|
3655 | |
|
|
3656 | EV_FREQUENT_CHECK; |
|
|
3657 | } |
|
|
3658 | #endif |
|
|
3659 | |
|
|
3660 | #if EV_ASYNC_ENABLE |
|
|
3661 | void |
|
|
3662 | ev_async_start (EV_P_ ev_async *w) |
|
|
3663 | { |
|
|
3664 | if (expect_false (ev_is_active (w))) |
|
|
3665 | return; |
|
|
3666 | |
|
|
3667 | w->sent = 0; |
3444 | |
3668 | |
3445 | evpipe_init (EV_A); |
3669 | evpipe_init (EV_A); |
3446 | |
3670 | |
3447 | EV_FREQUENT_CHECK; |
3671 | EV_FREQUENT_CHECK; |
3448 | |
3672 | |
… | |
… | |
3526 | { |
3750 | { |
3527 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3751 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3528 | |
3752 | |
3529 | if (expect_false (!once)) |
3753 | if (expect_false (!once)) |
3530 | { |
3754 | { |
3531 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3755 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3532 | return; |
3756 | return; |
3533 | } |
3757 | } |
3534 | |
3758 | |
3535 | once->cb = cb; |
3759 | once->cb = cb; |
3536 | once->arg = arg; |
3760 | once->arg = arg; |
… | |
… | |
3623 | if (types & EV_ASYNC) |
3847 | if (types & EV_ASYNC) |
3624 | for (i = asynccnt; i--; ) |
3848 | for (i = asynccnt; i--; ) |
3625 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3849 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3626 | #endif |
3850 | #endif |
3627 | |
3851 | |
|
|
3852 | #if EV_PREPARE_ENABLE |
3628 | if (types & EV_PREPARE) |
3853 | if (types & EV_PREPARE) |
3629 | for (i = preparecnt; i--; ) |
3854 | for (i = preparecnt; i--; ) |
3630 | #if EV_EMBED_ENABLE |
3855 | # if EV_EMBED_ENABLE |
3631 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3856 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3632 | #endif |
3857 | # endif |
3633 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3858 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3859 | #endif |
3634 | |
3860 | |
|
|
3861 | #if EV_CHECK_ENABLE |
3635 | if (types & EV_CHECK) |
3862 | if (types & EV_CHECK) |
3636 | for (i = checkcnt; i--; ) |
3863 | for (i = checkcnt; i--; ) |
3637 | cb (EV_A_ EV_CHECK, checks [i]); |
3864 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3865 | #endif |
3638 | |
3866 | |
|
|
3867 | #if EV_SIGNAL_ENABLE |
3639 | if (types & EV_SIGNAL) |
3868 | if (types & EV_SIGNAL) |
3640 | for (i = 0; i < EV_NSIG - 1; ++i) |
3869 | for (i = 0; i < EV_NSIG - 1; ++i) |
3641 | for (wl = signals [i].head; wl; ) |
3870 | for (wl = signals [i].head; wl; ) |
3642 | { |
3871 | { |
3643 | wn = wl->next; |
3872 | wn = wl->next; |
3644 | cb (EV_A_ EV_SIGNAL, wl); |
3873 | cb (EV_A_ EV_SIGNAL, wl); |
3645 | wl = wn; |
3874 | wl = wn; |
3646 | } |
3875 | } |
|
|
3876 | #endif |
3647 | |
3877 | |
|
|
3878 | #if EV_CHILD_ENABLE |
3648 | if (types & EV_CHILD) |
3879 | if (types & EV_CHILD) |
3649 | for (i = EV_PID_HASHSIZE; i--; ) |
3880 | for (i = (EV_PID_HASHSIZE); i--; ) |
3650 | for (wl = childs [i]; wl; ) |
3881 | for (wl = childs [i]; wl; ) |
3651 | { |
3882 | { |
3652 | wn = wl->next; |
3883 | wn = wl->next; |
3653 | cb (EV_A_ EV_CHILD, wl); |
3884 | cb (EV_A_ EV_CHILD, wl); |
3654 | wl = wn; |
3885 | wl = wn; |
3655 | } |
3886 | } |
|
|
3887 | #endif |
3656 | /* EV_STAT 0x00001000 /* stat data changed */ |
3888 | /* EV_STAT 0x00001000 /* stat data changed */ |
3657 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3889 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3658 | } |
3890 | } |
3659 | #endif |
3891 | #endif |
3660 | |
3892 | |
3661 | #if EV_MULTIPLICITY |
3893 | #if EV_MULTIPLICITY |
3662 | #include "ev_wrap.h" |
3894 | #include "ev_wrap.h" |
3663 | #endif |
3895 | #endif |
3664 | |
3896 | |
3665 | #ifdef __cplusplus |
3897 | EV_CPP(}) |
3666 | } |
|
|
3667 | #endif |
|
|
3668 | |
3898 | |