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 | |
|
|
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
138 | # ifndef EV_USE_EVENTFD |
142 | # ifndef EV_USE_SIGNALFD |
139 | # if HAVE_EVENTFD |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
140 | # define EV_USE_EVENTFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_EVENTFD 0 |
|
|
143 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
|
|
148 | # endif |
|
|
149 | |
|
|
150 | # if HAVE_EVENTFD |
|
|
151 | # ifndef EV_USE_EVENTFD |
|
|
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
144 | # endif |
157 | # endif |
145 | |
158 | |
146 | #endif |
159 | #endif |
147 | |
160 | |
148 | #include <math.h> |
161 | #include <math.h> |
149 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
150 | #include <fcntl.h> |
164 | #include <fcntl.h> |
151 | #include <stddef.h> |
165 | #include <stddef.h> |
152 | |
166 | |
153 | #include <stdio.h> |
167 | #include <stdio.h> |
154 | |
168 | |
155 | #include <assert.h> |
169 | #include <assert.h> |
156 | #include <errno.h> |
170 | #include <errno.h> |
157 | #include <sys/types.h> |
171 | #include <sys/types.h> |
158 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
159 | |
174 | |
160 | #include <signal.h> |
175 | #include <signal.h> |
161 | |
176 | |
162 | #ifdef EV_H |
177 | #ifdef EV_H |
163 | # include EV_H |
178 | # include EV_H |
164 | #else |
179 | #else |
165 | # include "ev.h" |
180 | # include "ev.h" |
166 | #endif |
181 | #endif |
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|
182 | |
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|
183 | EV_CPP(extern "C" {) |
167 | |
184 | |
168 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
169 | # include <sys/time.h> |
186 | # include <sys/time.h> |
170 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
171 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
174 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
175 | # include <windows.h> |
192 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
179 | #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 |
180 | |
206 | |
181 | /* 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 */ |
|
|
208 | |
|
|
209 | /* try to deduce the maximum number of signals on this platform */ |
|
|
210 | #if defined (EV_NSIG) |
|
|
211 | /* use what's provided */ |
|
|
212 | #elif defined (NSIG) |
|
|
213 | # define EV_NSIG (NSIG) |
|
|
214 | #elif defined(_NSIG) |
|
|
215 | # define EV_NSIG (_NSIG) |
|
|
216 | #elif defined (SIGMAX) |
|
|
217 | # define EV_NSIG (SIGMAX+1) |
|
|
218 | #elif defined (SIG_MAX) |
|
|
219 | # define EV_NSIG (SIG_MAX+1) |
|
|
220 | #elif defined (_SIG_MAX) |
|
|
221 | # define EV_NSIG (_SIG_MAX+1) |
|
|
222 | #elif defined (MAXSIG) |
|
|
223 | # define EV_NSIG (MAXSIG+1) |
|
|
224 | #elif defined (MAX_SIG) |
|
|
225 | # define EV_NSIG (MAX_SIG+1) |
|
|
226 | #elif defined (SIGARRAYSIZE) |
|
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
228 | #elif defined (_sys_nsig) |
|
|
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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230 | #else |
|
|
231 | # error "unable to find value for NSIG, please report" |
|
|
232 | /* to make it compile regardless, just remove the above line, */ |
|
|
233 | /* but consider reporting it, too! :) */ |
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|
234 | # define EV_NSIG 65 |
|
|
235 | #endif |
182 | |
236 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
240 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
242 | # endif |
189 | #endif |
243 | #endif |
190 | |
244 | |
191 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
248 | # else |
195 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
250 | # endif |
197 | #endif |
251 | #endif |
198 | |
252 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
255 | #endif |
202 | |
256 | |
203 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
260 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
262 | # endif |
209 | #endif |
263 | #endif |
210 | |
264 | |
211 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
267 | #endif |
214 | |
268 | |
215 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
218 | # else |
272 | # else |
219 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
274 | # endif |
221 | #endif |
275 | #endif |
222 | |
276 | |
223 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
280 | # else |
227 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
228 | # endif |
282 | # endif |
229 | #endif |
283 | #endif |
230 | |
284 | |
… | |
… | |
236 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
237 | #endif |
291 | #endif |
238 | |
292 | |
239 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
296 | # else |
243 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
244 | # endif |
298 | # endif |
245 | #endif |
299 | #endif |
246 | |
300 | |
247 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
249 | # define EV_PID_HASHSIZE 1 |
|
|
250 | # else |
|
|
251 | # define EV_PID_HASHSIZE 16 |
|
|
252 | # endif |
|
|
253 | #endif |
303 | #endif |
254 | |
304 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
258 | # else |
|
|
259 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
307 | #endif |
262 | |
308 | |
263 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
312 | # else |
267 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
|
|
314 | # endif |
|
|
315 | #endif |
|
|
316 | |
|
|
317 | #ifndef EV_USE_SIGNALFD |
|
|
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
320 | # else |
|
|
321 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
322 | # endif |
269 | #endif |
323 | #endif |
270 | |
324 | |
271 | #if 0 /* debugging */ |
325 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
326 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
329 | #endif |
276 | |
330 | |
277 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
333 | #endif |
280 | |
334 | |
281 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
337 | #endif |
284 | |
338 | |
285 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
287 | #endif |
341 | #endif |
288 | |
342 | |
289 | /* 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, */ |
290 | /* which makes programs even slower. might work on other unices, too. */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
291 | #if EV_USE_CLOCK_SYSCALL |
345 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
300 | # endif |
354 | # endif |
301 | #endif |
355 | #endif |
302 | |
356 | |
303 | /* 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 */ |
304 | |
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 | |
305 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
307 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
308 | #endif |
368 | #endif |
309 | |
369 | |
… | |
… | |
322 | # include <sys/select.h> |
382 | # include <sys/select.h> |
323 | # endif |
383 | # endif |
324 | #endif |
384 | #endif |
325 | |
385 | |
326 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
387 | # include <sys/statfs.h> |
329 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
331 | # ifndef IN_DONT_FOLLOW |
390 | # ifndef IN_DONT_FOLLOW |
332 | # undef EV_USE_INOTIFY |
391 | # undef EV_USE_INOTIFY |
… | |
… | |
339 | #endif |
398 | #endif |
340 | |
399 | |
341 | #if EV_USE_EVENTFD |
400 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
402 | # include <stdint.h> |
344 | # ifdef __cplusplus |
403 | # ifndef EFD_NONBLOCK |
345 | extern "C" { |
404 | # define EFD_NONBLOCK O_NONBLOCK |
346 | # endif |
405 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
406 | # ifndef EFD_CLOEXEC |
348 | # ifdef __cplusplus |
407 | # ifdef O_CLOEXEC |
349 | } |
408 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
409 | # else |
|
|
410 | # define EFD_CLOEXEC 02000000 |
|
|
411 | # endif |
350 | # endif |
412 | # endif |
|
|
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
418 | # include <stdint.h> |
|
|
419 | # ifndef SFD_NONBLOCK |
|
|
420 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
421 | # endif |
|
|
422 | # ifndef SFD_CLOEXEC |
|
|
423 | # ifdef O_CLOEXEC |
|
|
424 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define SFD_CLOEXEC 02000000 |
|
|
427 | # endif |
|
|
428 | # endif |
|
|
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
351 | #endif |
436 | #endif |
352 | |
437 | |
353 | /**/ |
438 | /**/ |
354 | |
439 | |
355 | #if EV_VERIFY >= 3 |
440 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
442 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
444 | #endif |
360 | |
445 | |
361 | /* |
446 | /* |
… | |
… | |
368 | */ |
453 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
455 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
374 | |
461 | |
375 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
378 | #else |
465 | #else |
… | |
… | |
385 | |
472 | |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
388 | #define inline_size static inline |
475 | #define inline_size static inline |
389 | |
476 | |
390 | #if EV_MINIMAL |
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
391 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
392 | #else |
|
|
393 | # define inline_speed static inline |
|
|
394 | #endif |
481 | #endif |
395 | |
482 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
397 | |
484 | |
398 | #if EV_MINPRI == EV_MAXPRI |
485 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
411 | #define ev_active(w) ((W)(w))->active |
498 | #define ev_active(w) ((W)(w))->active |
412 | #define ev_at(w) ((WT)(w))->at |
499 | #define ev_at(w) ((WT)(w))->at |
413 | |
500 | |
414 | #if EV_USE_REALTIME |
501 | #if EV_USE_REALTIME |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
503 | /* giving it a reasonably high chance of working on typical architectures */ |
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
418 | #endif |
505 | #endif |
419 | |
506 | |
420 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
509 | #endif |
423 | |
510 | |
|
|
511 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
512 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
513 | #endif |
|
|
514 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
515 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
516 | #endif |
|
|
517 | #ifndef EV_WIN32_CLOSE_FD |
|
|
518 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
519 | #endif |
|
|
520 | |
424 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
426 | #endif |
523 | #endif |
427 | |
524 | |
428 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
|
|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | unsigned int v = 0; |
|
|
536 | struct utsname buf; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
|
|
554 | break; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
|
|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
|
|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | #if EV_AVOID_STDIO |
|
|
570 | static void noinline |
|
|
571 | ev_printerr (const char *msg) |
|
|
572 | { |
|
|
573 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
574 | } |
|
|
575 | #endif |
429 | |
576 | |
430 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
431 | |
578 | |
432 | void |
579 | void |
433 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
443 | |
590 | |
444 | if (syserr_cb) |
591 | if (syserr_cb) |
445 | syserr_cb (msg); |
592 | syserr_cb (msg); |
446 | else |
593 | else |
447 | { |
594 | { |
|
|
595 | #if EV_AVOID_STDIO |
|
|
596 | ev_printerr (msg); |
|
|
597 | ev_printerr (": "); |
|
|
598 | ev_printerr (strerror (errno)); |
|
|
599 | ev_printerr ("\n"); |
|
|
600 | #else |
448 | perror (msg); |
601 | perror (msg); |
|
|
602 | #endif |
449 | abort (); |
603 | abort (); |
450 | } |
604 | } |
451 | } |
605 | } |
452 | |
606 | |
453 | static void * |
607 | static void * |
454 | ev_realloc_emul (void *ptr, long size) |
608 | ev_realloc_emul (void *ptr, long size) |
455 | { |
609 | { |
|
|
610 | #if __GLIBC__ |
|
|
611 | return realloc (ptr, size); |
|
|
612 | #else |
456 | /* some systems, notably openbsd and darwin, fail to properly |
613 | /* some systems, notably openbsd and darwin, fail to properly |
457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
614 | * implement realloc (x, 0) (as required by both ansi c-89 and |
458 | * the single unix specification, so work around them here. |
615 | * the single unix specification, so work around them here. |
459 | */ |
616 | */ |
460 | |
617 | |
461 | if (size) |
618 | if (size) |
462 | return realloc (ptr, size); |
619 | return realloc (ptr, size); |
463 | |
620 | |
464 | free (ptr); |
621 | free (ptr); |
465 | return 0; |
622 | return 0; |
|
|
623 | #endif |
466 | } |
624 | } |
467 | |
625 | |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
626 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
469 | |
627 | |
470 | void |
628 | void |
… | |
… | |
478 | { |
636 | { |
479 | ptr = alloc (ptr, size); |
637 | ptr = alloc (ptr, size); |
480 | |
638 | |
481 | if (!ptr && size) |
639 | if (!ptr && size) |
482 | { |
640 | { |
|
|
641 | #if EV_AVOID_STDIO |
|
|
642 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
643 | #else |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
644 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
645 | #endif |
484 | abort (); |
646 | abort (); |
485 | } |
647 | } |
486 | |
648 | |
487 | return ptr; |
649 | return ptr; |
488 | } |
650 | } |
… | |
… | |
504 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
666 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
505 | unsigned char unused; |
667 | unsigned char unused; |
506 | #if EV_USE_EPOLL |
668 | #if EV_USE_EPOLL |
507 | unsigned int egen; /* generation counter to counter epoll bugs */ |
669 | unsigned int egen; /* generation counter to counter epoll bugs */ |
508 | #endif |
670 | #endif |
509 | #if EV_SELECT_IS_WINSOCKET |
671 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
510 | SOCKET handle; |
672 | SOCKET handle; |
|
|
673 | #endif |
|
|
674 | #if EV_USE_IOCP |
|
|
675 | OVERLAPPED or, ow; |
511 | #endif |
676 | #endif |
512 | } ANFD; |
677 | } ANFD; |
513 | |
678 | |
514 | /* stores the pending event set for a given watcher */ |
679 | /* stores the pending event set for a given watcher */ |
515 | typedef struct |
680 | typedef struct |
… | |
… | |
570 | |
735 | |
571 | static int ev_default_loop_ptr; |
736 | static int ev_default_loop_ptr; |
572 | |
737 | |
573 | #endif |
738 | #endif |
574 | |
739 | |
575 | #if EV_MINIMAL < 2 |
740 | #if EV_FEATURE_API |
576 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
741 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
577 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
742 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
578 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
743 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
579 | #else |
744 | #else |
580 | # define EV_RELEASE_CB (void)0 |
745 | # define EV_RELEASE_CB (void)0 |
581 | # define EV_ACQUIRE_CB (void)0 |
746 | # define EV_ACQUIRE_CB (void)0 |
582 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
747 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
583 | #endif |
748 | #endif |
584 | |
749 | |
585 | #define EVUNLOOP_RECURSE 0x80 |
750 | #define EVBREAK_RECURSE 0x80 |
586 | |
751 | |
587 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
588 | |
753 | |
589 | #ifndef EV_HAVE_EV_TIME |
754 | #ifndef EV_HAVE_EV_TIME |
590 | ev_tstamp |
755 | ev_tstamp |
… | |
… | |
634 | if (delay > 0.) |
799 | if (delay > 0.) |
635 | { |
800 | { |
636 | #if EV_USE_NANOSLEEP |
801 | #if EV_USE_NANOSLEEP |
637 | struct timespec ts; |
802 | struct timespec ts; |
638 | |
803 | |
639 | ts.tv_sec = (time_t)delay; |
804 | EV_TS_SET (ts, delay); |
640 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
641 | |
|
|
642 | nanosleep (&ts, 0); |
805 | nanosleep (&ts, 0); |
643 | #elif defined(_WIN32) |
806 | #elif defined(_WIN32) |
644 | Sleep ((unsigned long)(delay * 1e3)); |
807 | Sleep ((unsigned long)(delay * 1e3)); |
645 | #else |
808 | #else |
646 | struct timeval tv; |
809 | struct timeval tv; |
647 | |
810 | |
648 | tv.tv_sec = (time_t)delay; |
|
|
649 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
650 | |
|
|
651 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
811 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
652 | /* something not guaranteed by newer posix versions, but guaranteed */ |
812 | /* something not guaranteed by newer posix versions, but guaranteed */ |
653 | /* by older ones */ |
813 | /* by older ones */ |
|
|
814 | EV_TV_SET (tv, delay); |
654 | select (0, 0, 0, 0, &tv); |
815 | select (0, 0, 0, 0, &tv); |
655 | #endif |
816 | #endif |
656 | } |
817 | } |
657 | } |
818 | } |
658 | |
819 | |
659 | /*****************************************************************************/ |
820 | /*****************************************************************************/ |
660 | |
821 | |
661 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
822 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
662 | |
823 | |
663 | /* find a suitable new size for the given array, */ |
824 | /* find a suitable new size for the given array, */ |
664 | /* hopefully by rounding to a ncie-to-malloc size */ |
825 | /* hopefully by rounding to a nice-to-malloc size */ |
665 | inline_size int |
826 | inline_size int |
666 | array_nextsize (int elem, int cur, int cnt) |
827 | array_nextsize (int elem, int cur, int cnt) |
667 | { |
828 | { |
668 | int ncur = cur + 1; |
829 | int ncur = cur + 1; |
669 | |
830 | |
… | |
… | |
765 | } |
926 | } |
766 | |
927 | |
767 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
768 | |
929 | |
769 | inline_speed void |
930 | inline_speed void |
770 | fd_event_nc (EV_P_ int fd, int revents) |
931 | fd_event_nocheck (EV_P_ int fd, int revents) |
771 | { |
932 | { |
772 | ANFD *anfd = anfds + fd; |
933 | ANFD *anfd = anfds + fd; |
773 | ev_io *w; |
934 | ev_io *w; |
774 | |
935 | |
775 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
936 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
787 | fd_event (EV_P_ int fd, int revents) |
948 | fd_event (EV_P_ int fd, int revents) |
788 | { |
949 | { |
789 | ANFD *anfd = anfds + fd; |
950 | ANFD *anfd = anfds + fd; |
790 | |
951 | |
791 | if (expect_true (!anfd->reify)) |
952 | if (expect_true (!anfd->reify)) |
792 | fd_event_nc (EV_A_ fd, revents); |
953 | fd_event_nocheck (EV_A_ fd, revents); |
793 | } |
954 | } |
794 | |
955 | |
795 | void |
956 | void |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
957 | ev_feed_fd_event (EV_P_ int fd, int revents) |
797 | { |
958 | { |
798 | if (fd >= 0 && fd < anfdmax) |
959 | if (fd >= 0 && fd < anfdmax) |
799 | fd_event_nc (EV_A_ fd, revents); |
960 | fd_event_nocheck (EV_A_ fd, revents); |
800 | } |
961 | } |
801 | |
962 | |
802 | /* make sure the external fd watch events are in-sync */ |
963 | /* make sure the external fd watch events are in-sync */ |
803 | /* with the kernel/libev internal state */ |
964 | /* with the kernel/libev internal state */ |
804 | inline_size void |
965 | inline_size void |
… | |
… | |
810 | { |
971 | { |
811 | int fd = fdchanges [i]; |
972 | int fd = fdchanges [i]; |
812 | ANFD *anfd = anfds + fd; |
973 | ANFD *anfd = anfds + fd; |
813 | ev_io *w; |
974 | ev_io *w; |
814 | |
975 | |
815 | unsigned char events = 0; |
976 | unsigned char o_events = anfd->events; |
|
|
977 | unsigned char o_reify = anfd->reify; |
816 | |
978 | |
817 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
979 | anfd->reify = 0; |
818 | events |= (unsigned char)w->events; |
|
|
819 | |
980 | |
820 | #if EV_SELECT_IS_WINSOCKET |
981 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
821 | if (events) |
982 | if (o_reify & EV__IOFDSET) |
822 | { |
983 | { |
823 | unsigned long arg; |
984 | unsigned long arg; |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
985 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
826 | #else |
|
|
827 | anfd->handle = _get_osfhandle (fd); |
|
|
828 | #endif |
|
|
829 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
986 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
987 | printf ("oi %d %x\n", fd, anfd->handle);//D |
830 | } |
988 | } |
831 | #endif |
989 | #endif |
832 | |
990 | |
|
|
991 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
833 | { |
992 | { |
834 | unsigned char o_events = anfd->events; |
|
|
835 | unsigned char o_reify = anfd->reify; |
|
|
836 | |
|
|
837 | anfd->reify = 0; |
|
|
838 | anfd->events = events; |
993 | anfd->events = 0; |
839 | |
994 | |
840 | if (o_events != events || o_reify & EV__IOFDSET) |
995 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
996 | anfd->events |= (unsigned char)w->events; |
|
|
997 | |
|
|
998 | if (o_events != anfd->events) |
|
|
999 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | if (o_reify & EV__IOFDSET) |
841 | backend_modify (EV_A_ fd, o_events, events); |
1003 | backend_modify (EV_A_ fd, o_events, anfd->events); |
842 | } |
|
|
843 | } |
1004 | } |
844 | |
1005 | |
845 | fdchangecnt = 0; |
1006 | fdchangecnt = 0; |
846 | } |
1007 | } |
847 | |
1008 | |
… | |
… | |
871 | ev_io_stop (EV_A_ w); |
1032 | ev_io_stop (EV_A_ w); |
872 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1033 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
873 | } |
1034 | } |
874 | } |
1035 | } |
875 | |
1036 | |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
1037 | /* check whether the given fd is actually valid, for error recovery */ |
877 | inline_size int |
1038 | inline_size int |
878 | fd_valid (int fd) |
1039 | fd_valid (int fd) |
879 | { |
1040 | { |
880 | #ifdef _WIN32 |
1041 | #ifdef _WIN32 |
881 | return _get_osfhandle (fd) != -1; |
1042 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
882 | #else |
1043 | #else |
883 | return fcntl (fd, F_GETFD) != -1; |
1044 | return fcntl (fd, F_GETFD) != -1; |
884 | #endif |
1045 | #endif |
885 | } |
1046 | } |
886 | |
1047 | |
… | |
… | |
904 | |
1065 | |
905 | for (fd = anfdmax; fd--; ) |
1066 | for (fd = anfdmax; fd--; ) |
906 | if (anfds [fd].events) |
1067 | if (anfds [fd].events) |
907 | { |
1068 | { |
908 | fd_kill (EV_A_ fd); |
1069 | fd_kill (EV_A_ fd); |
909 | return; |
1070 | break; |
910 | } |
1071 | } |
911 | } |
1072 | } |
912 | |
1073 | |
913 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1074 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
914 | static void noinline |
1075 | static void noinline |
… | |
… | |
923 | anfds [fd].emask = 0; |
1084 | anfds [fd].emask = 0; |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1085 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
925 | } |
1086 | } |
926 | } |
1087 | } |
927 | |
1088 | |
|
|
1089 | /* used to prepare libev internal fd's */ |
|
|
1090 | /* this is not fork-safe */ |
|
|
1091 | inline_speed void |
|
|
1092 | fd_intern (int fd) |
|
|
1093 | { |
|
|
1094 | #ifdef _WIN32 |
|
|
1095 | unsigned long arg = 1; |
|
|
1096 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1097 | #else |
|
|
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1100 | #endif |
|
|
1101 | } |
|
|
1102 | |
928 | /*****************************************************************************/ |
1103 | /*****************************************************************************/ |
929 | |
1104 | |
930 | /* |
1105 | /* |
931 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1106 | * the heap functions want a real array index. array index 0 is guaranteed to not |
932 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1107 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
933 | * the branching factor of the d-tree. |
1108 | * the branching factor of the d-tree. |
934 | */ |
1109 | */ |
935 | |
1110 | |
936 | /* |
1111 | /* |
… | |
… | |
1004 | |
1179 | |
1005 | for (;;) |
1180 | for (;;) |
1006 | { |
1181 | { |
1007 | int c = k << 1; |
1182 | int c = k << 1; |
1008 | |
1183 | |
1009 | if (c > N + HEAP0 - 1) |
1184 | if (c >= N + HEAP0) |
1010 | break; |
1185 | break; |
1011 | |
1186 | |
1012 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1187 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1013 | ? 1 : 0; |
1188 | ? 1 : 0; |
1014 | |
1189 | |
… | |
… | |
1050 | |
1225 | |
1051 | /* move an element suitably so it is in a correct place */ |
1226 | /* move an element suitably so it is in a correct place */ |
1052 | inline_size void |
1227 | inline_size void |
1053 | adjustheap (ANHE *heap, int N, int k) |
1228 | adjustheap (ANHE *heap, int N, int k) |
1054 | { |
1229 | { |
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1230 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1056 | upheap (heap, k); |
1231 | upheap (heap, k); |
1057 | else |
1232 | else |
1058 | downheap (heap, N, k); |
1233 | downheap (heap, N, k); |
1059 | } |
1234 | } |
1060 | |
1235 | |
… | |
… | |
1073 | /*****************************************************************************/ |
1248 | /*****************************************************************************/ |
1074 | |
1249 | |
1075 | /* associate signal watchers to a signal signal */ |
1250 | /* associate signal watchers to a signal signal */ |
1076 | typedef struct |
1251 | typedef struct |
1077 | { |
1252 | { |
|
|
1253 | EV_ATOMIC_T pending; |
|
|
1254 | #if EV_MULTIPLICITY |
|
|
1255 | EV_P; |
|
|
1256 | #endif |
1078 | WL head; |
1257 | WL head; |
1079 | EV_ATOMIC_T gotsig; |
|
|
1080 | } ANSIG; |
1258 | } ANSIG; |
1081 | |
1259 | |
1082 | static ANSIG *signals; |
1260 | static ANSIG signals [EV_NSIG - 1]; |
1083 | static int signalmax; |
|
|
1084 | |
|
|
1085 | static EV_ATOMIC_T gotsig; |
|
|
1086 | |
1261 | |
1087 | /*****************************************************************************/ |
1262 | /*****************************************************************************/ |
1088 | |
1263 | |
1089 | /* used to prepare libev internal fd's */ |
1264 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1090 | /* this is not fork-safe */ |
|
|
1091 | inline_speed void |
|
|
1092 | fd_intern (int fd) |
|
|
1093 | { |
|
|
1094 | #ifdef _WIN32 |
|
|
1095 | unsigned long arg = 1; |
|
|
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1097 | #else |
|
|
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1100 | #endif |
|
|
1101 | } |
|
|
1102 | |
1265 | |
1103 | static void noinline |
1266 | static void noinline |
1104 | evpipe_init (EV_P) |
1267 | evpipe_init (EV_P) |
1105 | { |
1268 | { |
1106 | if (!ev_is_active (&pipe_w)) |
1269 | if (!ev_is_active (&pipe_w)) |
1107 | { |
1270 | { |
1108 | #if EV_USE_EVENTFD |
1271 | # if EV_USE_EVENTFD |
|
|
1272 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1273 | if (evfd < 0 && errno == EINVAL) |
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
1274 | evfd = eventfd (0, 0); |
|
|
1275 | |
|
|
1276 | if (evfd >= 0) |
1110 | { |
1277 | { |
1111 | evpipe [0] = -1; |
1278 | evpipe [0] = -1; |
1112 | fd_intern (evfd); |
1279 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
1280 | ev_io_set (&pipe_w, evfd, EV_READ); |
1114 | } |
1281 | } |
1115 | else |
1282 | else |
1116 | #endif |
1283 | # endif |
1117 | { |
1284 | { |
1118 | while (pipe (evpipe)) |
1285 | while (pipe (evpipe)) |
1119 | ev_syserr ("(libev) error creating signal/async pipe"); |
1286 | ev_syserr ("(libev) error creating signal/async pipe"); |
1120 | |
1287 | |
1121 | fd_intern (evpipe [0]); |
1288 | fd_intern (evpipe [0]); |
… | |
… | |
1132 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1299 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1133 | { |
1300 | { |
1134 | if (!*flag) |
1301 | if (!*flag) |
1135 | { |
1302 | { |
1136 | int old_errno = errno; /* save errno because write might clobber it */ |
1303 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1304 | char dummy; |
1137 | |
1305 | |
1138 | *flag = 1; |
1306 | *flag = 1; |
1139 | |
1307 | |
1140 | #if EV_USE_EVENTFD |
1308 | #if EV_USE_EVENTFD |
1141 | if (evfd >= 0) |
1309 | if (evfd >= 0) |
… | |
… | |
1143 | uint64_t counter = 1; |
1311 | uint64_t counter = 1; |
1144 | write (evfd, &counter, sizeof (uint64_t)); |
1312 | write (evfd, &counter, sizeof (uint64_t)); |
1145 | } |
1313 | } |
1146 | else |
1314 | else |
1147 | #endif |
1315 | #endif |
|
|
1316 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1317 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1318 | /* so when you think this write should be a send instead, please find out */ |
|
|
1319 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1320 | /* tell me. thank you. */ |
1148 | write (evpipe [1], &old_errno, 1); |
1321 | write (evpipe [1], &dummy, 1); |
1149 | |
1322 | |
1150 | errno = old_errno; |
1323 | errno = old_errno; |
1151 | } |
1324 | } |
1152 | } |
1325 | } |
1153 | |
1326 | |
1154 | /* called whenever the libev signal pipe */ |
1327 | /* called whenever the libev signal pipe */ |
1155 | /* got some events (signal, async) */ |
1328 | /* got some events (signal, async) */ |
1156 | static void |
1329 | static void |
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
1330 | pipecb (EV_P_ ev_io *iow, int revents) |
1158 | { |
1331 | { |
|
|
1332 | int i; |
|
|
1333 | |
1159 | #if EV_USE_EVENTFD |
1334 | #if EV_USE_EVENTFD |
1160 | if (evfd >= 0) |
1335 | if (evfd >= 0) |
1161 | { |
1336 | { |
1162 | uint64_t counter; |
1337 | uint64_t counter; |
1163 | read (evfd, &counter, sizeof (uint64_t)); |
1338 | read (evfd, &counter, sizeof (uint64_t)); |
1164 | } |
1339 | } |
1165 | else |
1340 | else |
1166 | #endif |
1341 | #endif |
1167 | { |
1342 | { |
1168 | char dummy; |
1343 | char dummy; |
|
|
1344 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1169 | read (evpipe [0], &dummy, 1); |
1345 | read (evpipe [0], &dummy, 1); |
1170 | } |
1346 | } |
1171 | |
1347 | |
1172 | if (gotsig && ev_is_default_loop (EV_A)) |
1348 | if (sig_pending) |
1173 | { |
1349 | { |
1174 | int signum; |
1350 | sig_pending = 0; |
1175 | gotsig = 0; |
|
|
1176 | |
1351 | |
1177 | for (signum = signalmax; signum--; ) |
1352 | for (i = EV_NSIG - 1; i--; ) |
1178 | if (signals [signum].gotsig) |
1353 | if (expect_false (signals [i].pending)) |
1179 | ev_feed_signal_event (EV_A_ signum + 1); |
1354 | ev_feed_signal_event (EV_A_ i + 1); |
1180 | } |
1355 | } |
1181 | |
1356 | |
1182 | #if EV_ASYNC_ENABLE |
1357 | #if EV_ASYNC_ENABLE |
1183 | if (gotasync) |
1358 | if (async_pending) |
1184 | { |
1359 | { |
1185 | int i; |
1360 | async_pending = 0; |
1186 | gotasync = 0; |
|
|
1187 | |
1361 | |
1188 | for (i = asynccnt; i--; ) |
1362 | for (i = asynccnt; i--; ) |
1189 | if (asyncs [i]->sent) |
1363 | if (asyncs [i]->sent) |
1190 | { |
1364 | { |
1191 | asyncs [i]->sent = 0; |
1365 | asyncs [i]->sent = 0; |
… | |
… | |
1195 | #endif |
1369 | #endif |
1196 | } |
1370 | } |
1197 | |
1371 | |
1198 | /*****************************************************************************/ |
1372 | /*****************************************************************************/ |
1199 | |
1373 | |
|
|
1374 | void |
|
|
1375 | ev_feed_signal (int signum) |
|
|
1376 | { |
|
|
1377 | #if EV_MULTIPLICITY |
|
|
1378 | EV_P = signals [signum - 1].loop; |
|
|
1379 | |
|
|
1380 | if (!EV_A) |
|
|
1381 | return; |
|
|
1382 | #endif |
|
|
1383 | |
|
|
1384 | signals [signum - 1].pending = 1; |
|
|
1385 | evpipe_write (EV_A_ &sig_pending); |
|
|
1386 | } |
|
|
1387 | |
1200 | static void |
1388 | static void |
1201 | ev_sighandler (int signum) |
1389 | ev_sighandler (int signum) |
1202 | { |
1390 | { |
1203 | #if EV_MULTIPLICITY |
|
|
1204 | struct ev_loop *loop = &default_loop_struct; |
|
|
1205 | #endif |
|
|
1206 | |
|
|
1207 | #if _WIN32 |
1391 | #ifdef _WIN32 |
1208 | signal (signum, ev_sighandler); |
1392 | signal (signum, ev_sighandler); |
1209 | #endif |
1393 | #endif |
1210 | |
1394 | |
1211 | signals [signum - 1].gotsig = 1; |
1395 | ev_feed_signal (signum); |
1212 | evpipe_write (EV_A_ &gotsig); |
|
|
1213 | } |
1396 | } |
1214 | |
1397 | |
1215 | void noinline |
1398 | void noinline |
1216 | ev_feed_signal_event (EV_P_ int signum) |
1399 | ev_feed_signal_event (EV_P_ int signum) |
1217 | { |
1400 | { |
1218 | WL w; |
1401 | WL w; |
1219 | |
1402 | |
|
|
1403 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1404 | return; |
|
|
1405 | |
|
|
1406 | --signum; |
|
|
1407 | |
1220 | #if EV_MULTIPLICITY |
1408 | #if EV_MULTIPLICITY |
1221 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1409 | /* it is permissible to try to feed a signal to the wrong loop */ |
1222 | #endif |
1410 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1223 | |
1411 | |
1224 | --signum; |
1412 | if (expect_false (signals [signum].loop != EV_A)) |
1225 | |
|
|
1226 | if (signum < 0 || signum >= signalmax) |
|
|
1227 | return; |
1413 | return; |
|
|
1414 | #endif |
1228 | |
1415 | |
1229 | signals [signum].gotsig = 0; |
1416 | signals [signum].pending = 0; |
1230 | |
1417 | |
1231 | for (w = signals [signum].head; w; w = w->next) |
1418 | for (w = signals [signum].head; w; w = w->next) |
1232 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1419 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1233 | } |
1420 | } |
1234 | |
1421 | |
|
|
1422 | #if EV_USE_SIGNALFD |
|
|
1423 | static void |
|
|
1424 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1425 | { |
|
|
1426 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1427 | |
|
|
1428 | for (;;) |
|
|
1429 | { |
|
|
1430 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1431 | |
|
|
1432 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1433 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1434 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1435 | |
|
|
1436 | if (res < (ssize_t)sizeof (si)) |
|
|
1437 | break; |
|
|
1438 | } |
|
|
1439 | } |
|
|
1440 | #endif |
|
|
1441 | |
|
|
1442 | #endif |
|
|
1443 | |
1235 | /*****************************************************************************/ |
1444 | /*****************************************************************************/ |
1236 | |
1445 | |
|
|
1446 | #if EV_CHILD_ENABLE |
1237 | static WL childs [EV_PID_HASHSIZE]; |
1447 | static WL childs [EV_PID_HASHSIZE]; |
1238 | |
|
|
1239 | #ifndef _WIN32 |
|
|
1240 | |
1448 | |
1241 | static ev_signal childev; |
1449 | static ev_signal childev; |
1242 | |
1450 | |
1243 | #ifndef WIFCONTINUED |
1451 | #ifndef WIFCONTINUED |
1244 | # define WIFCONTINUED(status) 0 |
1452 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1249 | child_reap (EV_P_ int chain, int pid, int status) |
1457 | child_reap (EV_P_ int chain, int pid, int status) |
1250 | { |
1458 | { |
1251 | ev_child *w; |
1459 | ev_child *w; |
1252 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1460 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1253 | |
1461 | |
1254 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1462 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1255 | { |
1463 | { |
1256 | if ((w->pid == pid || !w->pid) |
1464 | if ((w->pid == pid || !w->pid) |
1257 | && (!traced || (w->flags & 1))) |
1465 | && (!traced || (w->flags & 1))) |
1258 | { |
1466 | { |
1259 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1467 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1284 | /* make sure we are called again until all children have been reaped */ |
1492 | /* make sure we are called again until all children have been reaped */ |
1285 | /* we need to do it this way so that the callback gets called before we continue */ |
1493 | /* we need to do it this way so that the callback gets called before we continue */ |
1286 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1494 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1287 | |
1495 | |
1288 | child_reap (EV_A_ pid, pid, status); |
1496 | child_reap (EV_A_ pid, pid, status); |
1289 | if (EV_PID_HASHSIZE > 1) |
1497 | if ((EV_PID_HASHSIZE) > 1) |
1290 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1498 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1291 | } |
1499 | } |
1292 | |
1500 | |
1293 | #endif |
1501 | #endif |
1294 | |
1502 | |
1295 | /*****************************************************************************/ |
1503 | /*****************************************************************************/ |
1296 | |
1504 | |
|
|
1505 | #if EV_USE_IOCP |
|
|
1506 | # include "ev_iocp.c" |
|
|
1507 | #endif |
1297 | #if EV_USE_PORT |
1508 | #if EV_USE_PORT |
1298 | # include "ev_port.c" |
1509 | # include "ev_port.c" |
1299 | #endif |
1510 | #endif |
1300 | #if EV_USE_KQUEUE |
1511 | #if EV_USE_KQUEUE |
1301 | # include "ev_kqueue.c" |
1512 | # include "ev_kqueue.c" |
… | |
… | |
1361 | #ifdef __APPLE__ |
1572 | #ifdef __APPLE__ |
1362 | /* only select works correctly on that "unix-certified" platform */ |
1573 | /* only select works correctly on that "unix-certified" platform */ |
1363 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1574 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1364 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1575 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1365 | #endif |
1576 | #endif |
|
|
1577 | #ifdef __FreeBSD__ |
|
|
1578 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1579 | #endif |
1366 | |
1580 | |
1367 | return flags; |
1581 | return flags; |
1368 | } |
1582 | } |
1369 | |
1583 | |
1370 | unsigned int |
1584 | unsigned int |
1371 | ev_embeddable_backends (void) |
1585 | ev_embeddable_backends (void) |
1372 | { |
1586 | { |
1373 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1587 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1374 | |
1588 | |
1375 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1589 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1376 | /* please fix it and tell me how to detect the fix */ |
1590 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1377 | flags &= ~EVBACKEND_EPOLL; |
1591 | flags &= ~EVBACKEND_EPOLL; |
1378 | |
1592 | |
1379 | return flags; |
1593 | return flags; |
1380 | } |
1594 | } |
1381 | |
1595 | |
1382 | unsigned int |
1596 | unsigned int |
1383 | ev_backend (EV_P) |
1597 | ev_backend (EV_P) |
1384 | { |
1598 | { |
1385 | return backend; |
1599 | return backend; |
1386 | } |
1600 | } |
1387 | |
1601 | |
1388 | #if EV_MINIMAL < 2 |
1602 | #if EV_FEATURE_API |
1389 | unsigned int |
1603 | unsigned int |
1390 | ev_loop_count (EV_P) |
1604 | ev_iteration (EV_P) |
1391 | { |
1605 | { |
1392 | return loop_count; |
1606 | return loop_count; |
1393 | } |
1607 | } |
1394 | |
1608 | |
1395 | unsigned int |
1609 | unsigned int |
1396 | ev_loop_depth (EV_P) |
1610 | ev_depth (EV_P) |
1397 | { |
1611 | { |
1398 | return loop_depth; |
1612 | return loop_depth; |
1399 | } |
1613 | } |
1400 | |
1614 | |
1401 | void |
1615 | void |
… | |
… | |
1438 | static void noinline |
1652 | static void noinline |
1439 | loop_init (EV_P_ unsigned int flags) |
1653 | loop_init (EV_P_ unsigned int flags) |
1440 | { |
1654 | { |
1441 | if (!backend) |
1655 | if (!backend) |
1442 | { |
1656 | { |
|
|
1657 | origflags = flags; |
|
|
1658 | |
1443 | #if EV_USE_REALTIME |
1659 | #if EV_USE_REALTIME |
1444 | if (!have_realtime) |
1660 | if (!have_realtime) |
1445 | { |
1661 | { |
1446 | struct timespec ts; |
1662 | struct timespec ts; |
1447 | |
1663 | |
… | |
… | |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1674 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1459 | have_monotonic = 1; |
1675 | have_monotonic = 1; |
1460 | } |
1676 | } |
1461 | #endif |
1677 | #endif |
1462 | |
1678 | |
|
|
1679 | /* pid check not overridable via env */ |
|
|
1680 | #ifndef _WIN32 |
|
|
1681 | if (flags & EVFLAG_FORKCHECK) |
|
|
1682 | curpid = getpid (); |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | if (!(flags & EVFLAG_NOENV) |
|
|
1686 | && !enable_secure () |
|
|
1687 | && getenv ("LIBEV_FLAGS")) |
|
|
1688 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1689 | |
1463 | ev_rt_now = ev_time (); |
1690 | ev_rt_now = ev_time (); |
1464 | mn_now = get_clock (); |
1691 | mn_now = get_clock (); |
1465 | now_floor = mn_now; |
1692 | now_floor = mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
1693 | rtmn_diff = ev_rt_now - mn_now; |
1467 | #if EV_MINIMAL < 2 |
1694 | #if EV_FEATURE_API |
1468 | invoke_cb = ev_invoke_pending; |
1695 | invoke_cb = ev_invoke_pending; |
1469 | #endif |
1696 | #endif |
1470 | |
1697 | |
1471 | io_blocktime = 0.; |
1698 | io_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1699 | timeout_blocktime = 0.; |
1473 | backend = 0; |
1700 | backend = 0; |
1474 | backend_fd = -1; |
1701 | backend_fd = -1; |
1475 | gotasync = 0; |
1702 | sig_pending = 0; |
|
|
1703 | #if EV_ASYNC_ENABLE |
|
|
1704 | async_pending = 0; |
|
|
1705 | #endif |
1476 | #if EV_USE_INOTIFY |
1706 | #if EV_USE_INOTIFY |
1477 | fs_fd = -2; |
1707 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1478 | #endif |
1708 | #endif |
1479 | |
1709 | #if EV_USE_SIGNALFD |
1480 | /* pid check not overridable via env */ |
1710 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1481 | #ifndef _WIN32 |
|
|
1482 | if (flags & EVFLAG_FORKCHECK) |
|
|
1483 | curpid = getpid (); |
|
|
1484 | #endif |
1711 | #endif |
1485 | |
1712 | |
1486 | if (!(flags & EVFLAG_NOENV) |
1713 | if (!(flags & EVBACKEND_MASK)) |
1487 | && !enable_secure () |
|
|
1488 | && getenv ("LIBEV_FLAGS")) |
|
|
1489 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1490 | |
|
|
1491 | if (!(flags & 0x0000ffffU)) |
|
|
1492 | flags |= ev_recommended_backends (); |
1714 | flags |= ev_recommended_backends (); |
1493 | |
1715 | |
|
|
1716 | #if EV_USE_IOCP |
|
|
1717 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1718 | #endif |
1494 | #if EV_USE_PORT |
1719 | #if EV_USE_PORT |
1495 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1720 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1496 | #endif |
1721 | #endif |
1497 | #if EV_USE_KQUEUE |
1722 | #if EV_USE_KQUEUE |
1498 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1507 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1732 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1508 | #endif |
1733 | #endif |
1509 | |
1734 | |
1510 | ev_prepare_init (&pending_w, pendingcb); |
1735 | ev_prepare_init (&pending_w, pendingcb); |
1511 | |
1736 | |
|
|
1737 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1512 | ev_init (&pipe_w, pipecb); |
1738 | ev_init (&pipe_w, pipecb); |
1513 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1739 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1740 | #endif |
1514 | } |
1741 | } |
1515 | } |
1742 | } |
1516 | |
1743 | |
1517 | /* free up a loop structure */ |
1744 | /* free up a loop structure */ |
1518 | static void noinline |
1745 | void |
1519 | loop_destroy (EV_P) |
1746 | ev_loop_destroy (EV_P) |
1520 | { |
1747 | { |
1521 | int i; |
1748 | int i; |
1522 | |
1749 | |
|
|
1750 | #if EV_MULTIPLICITY |
|
|
1751 | /* mimic free (0) */ |
|
|
1752 | if (!EV_A) |
|
|
1753 | return; |
|
|
1754 | #endif |
|
|
1755 | |
|
|
1756 | #if EV_CLEANUP_ENABLE |
|
|
1757 | /* queue cleanup watchers (and execute them) */ |
|
|
1758 | if (expect_false (cleanupcnt)) |
|
|
1759 | { |
|
|
1760 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1761 | EV_INVOKE_PENDING; |
|
|
1762 | } |
|
|
1763 | #endif |
|
|
1764 | |
|
|
1765 | #if EV_CHILD_ENABLE |
|
|
1766 | if (ev_is_active (&childev)) |
|
|
1767 | { |
|
|
1768 | ev_ref (EV_A); /* child watcher */ |
|
|
1769 | ev_signal_stop (EV_A_ &childev); |
|
|
1770 | } |
|
|
1771 | #endif |
|
|
1772 | |
1523 | if (ev_is_active (&pipe_w)) |
1773 | if (ev_is_active (&pipe_w)) |
1524 | { |
1774 | { |
1525 | ev_ref (EV_A); /* signal watcher */ |
1775 | /*ev_ref (EV_A);*/ |
1526 | ev_io_stop (EV_A_ &pipe_w); |
1776 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1527 | |
1777 | |
1528 | #if EV_USE_EVENTFD |
1778 | #if EV_USE_EVENTFD |
1529 | if (evfd >= 0) |
1779 | if (evfd >= 0) |
1530 | close (evfd); |
1780 | close (evfd); |
1531 | #endif |
1781 | #endif |
1532 | |
1782 | |
1533 | if (evpipe [0] >= 0) |
1783 | if (evpipe [0] >= 0) |
1534 | { |
1784 | { |
1535 | close (evpipe [0]); |
1785 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1536 | close (evpipe [1]); |
1786 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1537 | } |
1787 | } |
1538 | } |
1788 | } |
|
|
1789 | |
|
|
1790 | #if EV_USE_SIGNALFD |
|
|
1791 | if (ev_is_active (&sigfd_w)) |
|
|
1792 | close (sigfd); |
|
|
1793 | #endif |
1539 | |
1794 | |
1540 | #if EV_USE_INOTIFY |
1795 | #if EV_USE_INOTIFY |
1541 | if (fs_fd >= 0) |
1796 | if (fs_fd >= 0) |
1542 | close (fs_fd); |
1797 | close (fs_fd); |
1543 | #endif |
1798 | #endif |
1544 | |
1799 | |
1545 | if (backend_fd >= 0) |
1800 | if (backend_fd >= 0) |
1546 | close (backend_fd); |
1801 | close (backend_fd); |
1547 | |
1802 | |
|
|
1803 | #if EV_USE_IOCP |
|
|
1804 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1805 | #endif |
1548 | #if EV_USE_PORT |
1806 | #if EV_USE_PORT |
1549 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1807 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1550 | #endif |
1808 | #endif |
1551 | #if EV_USE_KQUEUE |
1809 | #if EV_USE_KQUEUE |
1552 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1810 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1567 | #if EV_IDLE_ENABLE |
1825 | #if EV_IDLE_ENABLE |
1568 | array_free (idle, [i]); |
1826 | array_free (idle, [i]); |
1569 | #endif |
1827 | #endif |
1570 | } |
1828 | } |
1571 | |
1829 | |
1572 | ev_free (anfds); anfdmax = 0; |
1830 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1573 | |
1831 | |
1574 | /* have to use the microsoft-never-gets-it-right macro */ |
1832 | /* have to use the microsoft-never-gets-it-right macro */ |
1575 | array_free (rfeed, EMPTY); |
1833 | array_free (rfeed, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1834 | array_free (fdchange, EMPTY); |
1577 | array_free (timer, EMPTY); |
1835 | array_free (timer, EMPTY); |
… | |
… | |
1579 | array_free (periodic, EMPTY); |
1837 | array_free (periodic, EMPTY); |
1580 | #endif |
1838 | #endif |
1581 | #if EV_FORK_ENABLE |
1839 | #if EV_FORK_ENABLE |
1582 | array_free (fork, EMPTY); |
1840 | array_free (fork, EMPTY); |
1583 | #endif |
1841 | #endif |
|
|
1842 | #if EV_CLEANUP_ENABLE |
|
|
1843 | array_free (cleanup, EMPTY); |
|
|
1844 | #endif |
1584 | array_free (prepare, EMPTY); |
1845 | array_free (prepare, EMPTY); |
1585 | array_free (check, EMPTY); |
1846 | array_free (check, EMPTY); |
1586 | #if EV_ASYNC_ENABLE |
1847 | #if EV_ASYNC_ENABLE |
1587 | array_free (async, EMPTY); |
1848 | array_free (async, EMPTY); |
1588 | #endif |
1849 | #endif |
1589 | |
1850 | |
1590 | backend = 0; |
1851 | backend = 0; |
|
|
1852 | |
|
|
1853 | #if EV_MULTIPLICITY |
|
|
1854 | if (ev_is_default_loop (EV_A)) |
|
|
1855 | #endif |
|
|
1856 | ev_default_loop_ptr = 0; |
|
|
1857 | #if EV_MULTIPLICITY |
|
|
1858 | else |
|
|
1859 | ev_free (EV_A); |
|
|
1860 | #endif |
1591 | } |
1861 | } |
1592 | |
1862 | |
1593 | #if EV_USE_INOTIFY |
1863 | #if EV_USE_INOTIFY |
1594 | inline_size void infy_fork (EV_P); |
1864 | inline_size void infy_fork (EV_P); |
1595 | #endif |
1865 | #endif |
… | |
… | |
1612 | |
1882 | |
1613 | if (ev_is_active (&pipe_w)) |
1883 | if (ev_is_active (&pipe_w)) |
1614 | { |
1884 | { |
1615 | /* this "locks" the handlers against writing to the pipe */ |
1885 | /* this "locks" the handlers against writing to the pipe */ |
1616 | /* while we modify the fd vars */ |
1886 | /* while we modify the fd vars */ |
1617 | gotsig = 1; |
1887 | sig_pending = 1; |
1618 | #if EV_ASYNC_ENABLE |
1888 | #if EV_ASYNC_ENABLE |
1619 | gotasync = 1; |
1889 | async_pending = 1; |
1620 | #endif |
1890 | #endif |
1621 | |
1891 | |
1622 | ev_ref (EV_A); |
1892 | ev_ref (EV_A); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
1893 | ev_io_stop (EV_A_ &pipe_w); |
1624 | |
1894 | |
… | |
… | |
1627 | close (evfd); |
1897 | close (evfd); |
1628 | #endif |
1898 | #endif |
1629 | |
1899 | |
1630 | if (evpipe [0] >= 0) |
1900 | if (evpipe [0] >= 0) |
1631 | { |
1901 | { |
1632 | close (evpipe [0]); |
1902 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1633 | close (evpipe [1]); |
1903 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1634 | } |
1904 | } |
1635 | |
1905 | |
|
|
1906 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1636 | evpipe_init (EV_A); |
1907 | evpipe_init (EV_A); |
1637 | /* now iterate over everything, in case we missed something */ |
1908 | /* now iterate over everything, in case we missed something */ |
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1909 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1910 | #endif |
1639 | } |
1911 | } |
1640 | |
1912 | |
1641 | postfork = 0; |
1913 | postfork = 0; |
1642 | } |
1914 | } |
1643 | |
1915 | |
1644 | #if EV_MULTIPLICITY |
1916 | #if EV_MULTIPLICITY |
1645 | |
1917 | |
1646 | struct ev_loop * |
1918 | struct ev_loop * |
1647 | ev_loop_new (unsigned int flags) |
1919 | ev_loop_new (unsigned int flags) |
1648 | { |
1920 | { |
1649 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1921 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1650 | |
1922 | |
1651 | memset (loop, 0, sizeof (struct ev_loop)); |
1923 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1652 | |
|
|
1653 | loop_init (EV_A_ flags); |
1924 | loop_init (EV_A_ flags); |
1654 | |
1925 | |
1655 | if (ev_backend (EV_A)) |
1926 | if (ev_backend (EV_A)) |
1656 | return loop; |
1927 | return EV_A; |
1657 | |
1928 | |
|
|
1929 | ev_free (EV_A); |
1658 | return 0; |
1930 | return 0; |
1659 | } |
1931 | } |
1660 | |
1932 | |
1661 | void |
|
|
1662 | ev_loop_destroy (EV_P) |
|
|
1663 | { |
|
|
1664 | loop_destroy (EV_A); |
|
|
1665 | ev_free (loop); |
|
|
1666 | } |
|
|
1667 | |
|
|
1668 | void |
|
|
1669 | ev_loop_fork (EV_P) |
|
|
1670 | { |
|
|
1671 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1672 | } |
|
|
1673 | #endif /* multiplicity */ |
1933 | #endif /* multiplicity */ |
1674 | |
1934 | |
1675 | #if EV_VERIFY |
1935 | #if EV_VERIFY |
1676 | static void noinline |
1936 | static void noinline |
1677 | verify_watcher (EV_P_ W w) |
1937 | verify_watcher (EV_P_ W w) |
… | |
… | |
1706 | verify_watcher (EV_A_ ws [cnt]); |
1966 | verify_watcher (EV_A_ ws [cnt]); |
1707 | } |
1967 | } |
1708 | } |
1968 | } |
1709 | #endif |
1969 | #endif |
1710 | |
1970 | |
1711 | #if EV_MINIMAL < 2 |
1971 | #if EV_FEATURE_API |
1712 | void |
1972 | void |
1713 | ev_loop_verify (EV_P) |
1973 | ev_verify (EV_P) |
1714 | { |
1974 | { |
1715 | #if EV_VERIFY |
1975 | #if EV_VERIFY |
1716 | int i; |
1976 | int i; |
1717 | WL w; |
1977 | WL w; |
1718 | |
1978 | |
… | |
… | |
1752 | #if EV_FORK_ENABLE |
2012 | #if EV_FORK_ENABLE |
1753 | assert (forkmax >= forkcnt); |
2013 | assert (forkmax >= forkcnt); |
1754 | array_verify (EV_A_ (W *)forks, forkcnt); |
2014 | array_verify (EV_A_ (W *)forks, forkcnt); |
1755 | #endif |
2015 | #endif |
1756 | |
2016 | |
|
|
2017 | #if EV_CLEANUP_ENABLE |
|
|
2018 | assert (cleanupmax >= cleanupcnt); |
|
|
2019 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2020 | #endif |
|
|
2021 | |
1757 | #if EV_ASYNC_ENABLE |
2022 | #if EV_ASYNC_ENABLE |
1758 | assert (asyncmax >= asynccnt); |
2023 | assert (asyncmax >= asynccnt); |
1759 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2024 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1760 | #endif |
2025 | #endif |
1761 | |
2026 | |
|
|
2027 | #if EV_PREPARE_ENABLE |
1762 | assert (preparemax >= preparecnt); |
2028 | assert (preparemax >= preparecnt); |
1763 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2029 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2030 | #endif |
1764 | |
2031 | |
|
|
2032 | #if EV_CHECK_ENABLE |
1765 | assert (checkmax >= checkcnt); |
2033 | assert (checkmax >= checkcnt); |
1766 | array_verify (EV_A_ (W *)checks, checkcnt); |
2034 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2035 | #endif |
1767 | |
2036 | |
1768 | # if 0 |
2037 | # if 0 |
|
|
2038 | #if EV_CHILD_ENABLE |
1769 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2039 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1770 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2040 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2041 | #endif |
1771 | # endif |
2042 | # endif |
1772 | #endif |
2043 | #endif |
1773 | } |
2044 | } |
1774 | #endif |
2045 | #endif |
1775 | |
2046 | |
1776 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1777 | struct ev_loop * |
2048 | struct ev_loop * |
1778 | ev_default_loop_init (unsigned int flags) |
|
|
1779 | #else |
2049 | #else |
1780 | int |
2050 | int |
|
|
2051 | #endif |
1781 | ev_default_loop (unsigned int flags) |
2052 | ev_default_loop (unsigned int flags) |
1782 | #endif |
|
|
1783 | { |
2053 | { |
1784 | if (!ev_default_loop_ptr) |
2054 | if (!ev_default_loop_ptr) |
1785 | { |
2055 | { |
1786 | #if EV_MULTIPLICITY |
2056 | #if EV_MULTIPLICITY |
1787 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2057 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1788 | #else |
2058 | #else |
1789 | ev_default_loop_ptr = 1; |
2059 | ev_default_loop_ptr = 1; |
1790 | #endif |
2060 | #endif |
1791 | |
2061 | |
1792 | loop_init (EV_A_ flags); |
2062 | loop_init (EV_A_ flags); |
1793 | |
2063 | |
1794 | if (ev_backend (EV_A)) |
2064 | if (ev_backend (EV_A)) |
1795 | { |
2065 | { |
1796 | #ifndef _WIN32 |
2066 | #if EV_CHILD_ENABLE |
1797 | ev_signal_init (&childev, childcb, SIGCHLD); |
2067 | ev_signal_init (&childev, childcb, SIGCHLD); |
1798 | ev_set_priority (&childev, EV_MAXPRI); |
2068 | ev_set_priority (&childev, EV_MAXPRI); |
1799 | ev_signal_start (EV_A_ &childev); |
2069 | ev_signal_start (EV_A_ &childev); |
1800 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2070 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1801 | #endif |
2071 | #endif |
… | |
… | |
1806 | |
2076 | |
1807 | return ev_default_loop_ptr; |
2077 | return ev_default_loop_ptr; |
1808 | } |
2078 | } |
1809 | |
2079 | |
1810 | void |
2080 | void |
1811 | ev_default_destroy (void) |
2081 | ev_loop_fork (EV_P) |
1812 | { |
2082 | { |
1813 | #if EV_MULTIPLICITY |
|
|
1814 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1815 | #endif |
|
|
1816 | |
|
|
1817 | ev_default_loop_ptr = 0; |
|
|
1818 | |
|
|
1819 | #ifndef _WIN32 |
|
|
1820 | ev_ref (EV_A); /* child watcher */ |
|
|
1821 | ev_signal_stop (EV_A_ &childev); |
|
|
1822 | #endif |
|
|
1823 | |
|
|
1824 | loop_destroy (EV_A); |
|
|
1825 | } |
|
|
1826 | |
|
|
1827 | void |
|
|
1828 | ev_default_fork (void) |
|
|
1829 | { |
|
|
1830 | #if EV_MULTIPLICITY |
|
|
1831 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1832 | #endif |
|
|
1833 | |
|
|
1834 | postfork = 1; /* must be in line with ev_loop_fork */ |
2083 | postfork = 1; /* must be in line with ev_default_fork */ |
1835 | } |
2084 | } |
1836 | |
2085 | |
1837 | /*****************************************************************************/ |
2086 | /*****************************************************************************/ |
1838 | |
2087 | |
1839 | void |
2088 | void |
… | |
… | |
1930 | EV_FREQUENT_CHECK; |
2179 | EV_FREQUENT_CHECK; |
1931 | feed_reverse (EV_A_ (W)w); |
2180 | feed_reverse (EV_A_ (W)w); |
1932 | } |
2181 | } |
1933 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2182 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1934 | |
2183 | |
1935 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2184 | feed_reverse_done (EV_A_ EV_TIMER); |
1936 | } |
2185 | } |
1937 | } |
2186 | } |
1938 | |
2187 | |
1939 | #if EV_PERIODIC_ENABLE |
2188 | #if EV_PERIODIC_ENABLE |
1940 | /* make periodics pending */ |
2189 | /* make periodics pending */ |
… | |
… | |
1993 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2242 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1994 | } |
2243 | } |
1995 | } |
2244 | } |
1996 | |
2245 | |
1997 | /* simply recalculate all periodics */ |
2246 | /* simply recalculate all periodics */ |
1998 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2247 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1999 | static void noinline |
2248 | static void noinline |
2000 | periodics_reschedule (EV_P) |
2249 | periodics_reschedule (EV_P) |
2001 | { |
2250 | { |
2002 | int i; |
2251 | int i; |
2003 | |
2252 | |
… | |
… | |
2031 | ANHE_at_cache (*he); |
2280 | ANHE_at_cache (*he); |
2032 | } |
2281 | } |
2033 | } |
2282 | } |
2034 | |
2283 | |
2035 | /* fetch new monotonic and realtime times from the kernel */ |
2284 | /* fetch new monotonic and realtime times from the kernel */ |
2036 | /* also detetc if there was a timejump, and act accordingly */ |
2285 | /* also detect if there was a timejump, and act accordingly */ |
2037 | inline_speed void |
2286 | inline_speed void |
2038 | time_update (EV_P_ ev_tstamp max_block) |
2287 | time_update (EV_P_ ev_tstamp max_block) |
2039 | { |
2288 | { |
2040 | #if EV_USE_MONOTONIC |
2289 | #if EV_USE_MONOTONIC |
2041 | if (expect_true (have_monotonic)) |
2290 | if (expect_true (have_monotonic)) |
… | |
… | |
2099 | mn_now = ev_rt_now; |
2348 | mn_now = ev_rt_now; |
2100 | } |
2349 | } |
2101 | } |
2350 | } |
2102 | |
2351 | |
2103 | void |
2352 | void |
2104 | ev_loop (EV_P_ int flags) |
2353 | ev_run (EV_P_ int flags) |
2105 | { |
2354 | { |
2106 | #if EV_MINIMAL < 2 |
2355 | #if EV_FEATURE_API |
2107 | ++loop_depth; |
2356 | ++loop_depth; |
2108 | #endif |
2357 | #endif |
2109 | |
2358 | |
2110 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2359 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2111 | |
2360 | |
2112 | loop_done = EVUNLOOP_CANCEL; |
2361 | loop_done = EVBREAK_CANCEL; |
2113 | |
2362 | |
2114 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2363 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2115 | |
2364 | |
2116 | do |
2365 | do |
2117 | { |
2366 | { |
2118 | #if EV_VERIFY >= 2 |
2367 | #if EV_VERIFY >= 2 |
2119 | ev_loop_verify (EV_A); |
2368 | ev_verify (EV_A); |
2120 | #endif |
2369 | #endif |
2121 | |
2370 | |
2122 | #ifndef _WIN32 |
2371 | #ifndef _WIN32 |
2123 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2372 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2124 | if (expect_false (getpid () != curpid)) |
2373 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2136 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2385 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2137 | EV_INVOKE_PENDING; |
2386 | EV_INVOKE_PENDING; |
2138 | } |
2387 | } |
2139 | #endif |
2388 | #endif |
2140 | |
2389 | |
|
|
2390 | #if EV_PREPARE_ENABLE |
2141 | /* queue prepare watchers (and execute them) */ |
2391 | /* queue prepare watchers (and execute them) */ |
2142 | if (expect_false (preparecnt)) |
2392 | if (expect_false (preparecnt)) |
2143 | { |
2393 | { |
2144 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2394 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2145 | EV_INVOKE_PENDING; |
2395 | EV_INVOKE_PENDING; |
2146 | } |
2396 | } |
|
|
2397 | #endif |
2147 | |
2398 | |
2148 | if (expect_false (loop_done)) |
2399 | if (expect_false (loop_done)) |
2149 | break; |
2400 | break; |
2150 | |
2401 | |
2151 | /* we might have forked, so reify kernel state if necessary */ |
2402 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2158 | /* calculate blocking time */ |
2409 | /* calculate blocking time */ |
2159 | { |
2410 | { |
2160 | ev_tstamp waittime = 0.; |
2411 | ev_tstamp waittime = 0.; |
2161 | ev_tstamp sleeptime = 0.; |
2412 | ev_tstamp sleeptime = 0.; |
2162 | |
2413 | |
|
|
2414 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2415 | ev_tstamp prev_mn_now = mn_now; |
|
|
2416 | |
|
|
2417 | /* update time to cancel out callback processing overhead */ |
|
|
2418 | time_update (EV_A_ 1e100); |
|
|
2419 | |
2163 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2420 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2164 | { |
2421 | { |
2165 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2166 | ev_tstamp prev_mn_now = mn_now; |
|
|
2167 | |
|
|
2168 | /* update time to cancel out callback processing overhead */ |
|
|
2169 | time_update (EV_A_ 1e100); |
|
|
2170 | |
|
|
2171 | waittime = MAX_BLOCKTIME; |
2422 | waittime = MAX_BLOCKTIME; |
2172 | |
2423 | |
2173 | if (timercnt) |
2424 | if (timercnt) |
2174 | { |
2425 | { |
2175 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2426 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2202 | waittime -= sleeptime; |
2453 | waittime -= sleeptime; |
2203 | } |
2454 | } |
2204 | } |
2455 | } |
2205 | } |
2456 | } |
2206 | |
2457 | |
2207 | #if EV_MINIMAL < 2 |
2458 | #if EV_FEATURE_API |
2208 | ++loop_count; |
2459 | ++loop_count; |
2209 | #endif |
2460 | #endif |
2210 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2461 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2211 | backend_poll (EV_A_ waittime); |
2462 | backend_poll (EV_A_ waittime); |
2212 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2463 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2213 | |
2464 | |
2214 | /* update ev_rt_now, do magic */ |
2465 | /* update ev_rt_now, do magic */ |
2215 | time_update (EV_A_ waittime + sleeptime); |
2466 | time_update (EV_A_ waittime + sleeptime); |
2216 | } |
2467 | } |
2217 | |
2468 | |
… | |
… | |
2224 | #if EV_IDLE_ENABLE |
2475 | #if EV_IDLE_ENABLE |
2225 | /* queue idle watchers unless other events are pending */ |
2476 | /* queue idle watchers unless other events are pending */ |
2226 | idle_reify (EV_A); |
2477 | idle_reify (EV_A); |
2227 | #endif |
2478 | #endif |
2228 | |
2479 | |
|
|
2480 | #if EV_CHECK_ENABLE |
2229 | /* queue check watchers, to be executed first */ |
2481 | /* queue check watchers, to be executed first */ |
2230 | if (expect_false (checkcnt)) |
2482 | if (expect_false (checkcnt)) |
2231 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2483 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2484 | #endif |
2232 | |
2485 | |
2233 | EV_INVOKE_PENDING; |
2486 | EV_INVOKE_PENDING; |
2234 | } |
2487 | } |
2235 | while (expect_true ( |
2488 | while (expect_true ( |
2236 | activecnt |
2489 | activecnt |
2237 | && !loop_done |
2490 | && !loop_done |
2238 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2491 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2239 | )); |
2492 | )); |
2240 | |
2493 | |
2241 | if (loop_done == EVUNLOOP_ONE) |
2494 | if (loop_done == EVBREAK_ONE) |
2242 | loop_done = EVUNLOOP_CANCEL; |
2495 | loop_done = EVBREAK_CANCEL; |
2243 | |
2496 | |
2244 | #if EV_MINIMAL < 2 |
2497 | #if EV_FEATURE_API |
2245 | --loop_depth; |
2498 | --loop_depth; |
2246 | #endif |
2499 | #endif |
2247 | } |
2500 | } |
2248 | |
2501 | |
2249 | void |
2502 | void |
2250 | ev_unloop (EV_P_ int how) |
2503 | ev_break (EV_P_ int how) |
2251 | { |
2504 | { |
2252 | loop_done = how; |
2505 | loop_done = how; |
2253 | } |
2506 | } |
2254 | |
2507 | |
2255 | void |
2508 | void |
… | |
… | |
2302 | inline_size void |
2555 | inline_size void |
2303 | wlist_del (WL *head, WL elem) |
2556 | wlist_del (WL *head, WL elem) |
2304 | { |
2557 | { |
2305 | while (*head) |
2558 | while (*head) |
2306 | { |
2559 | { |
2307 | if (*head == elem) |
2560 | if (expect_true (*head == elem)) |
2308 | { |
2561 | { |
2309 | *head = elem->next; |
2562 | *head = elem->next; |
2310 | return; |
2563 | break; |
2311 | } |
2564 | } |
2312 | |
2565 | |
2313 | head = &(*head)->next; |
2566 | head = &(*head)->next; |
2314 | } |
2567 | } |
2315 | } |
2568 | } |
… | |
… | |
2375 | |
2628 | |
2376 | if (expect_false (ev_is_active (w))) |
2629 | if (expect_false (ev_is_active (w))) |
2377 | return; |
2630 | return; |
2378 | |
2631 | |
2379 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2632 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2380 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2633 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2381 | |
2634 | |
2382 | EV_FREQUENT_CHECK; |
2635 | EV_FREQUENT_CHECK; |
2383 | |
2636 | |
2384 | ev_start (EV_A_ (W)w, 1); |
2637 | ev_start (EV_A_ (W)w, 1); |
2385 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2638 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2403 | EV_FREQUENT_CHECK; |
2656 | EV_FREQUENT_CHECK; |
2404 | |
2657 | |
2405 | wlist_del (&anfds[w->fd].head, (WL)w); |
2658 | wlist_del (&anfds[w->fd].head, (WL)w); |
2406 | ev_stop (EV_A_ (W)w); |
2659 | ev_stop (EV_A_ (W)w); |
2407 | |
2660 | |
2408 | fd_change (EV_A_ w->fd, 1); |
2661 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2409 | |
2662 | |
2410 | EV_FREQUENT_CHECK; |
2663 | EV_FREQUENT_CHECK; |
2411 | } |
2664 | } |
2412 | |
2665 | |
2413 | void noinline |
2666 | void noinline |
… | |
… | |
2455 | timers [active] = timers [timercnt + HEAP0]; |
2708 | timers [active] = timers [timercnt + HEAP0]; |
2456 | adjustheap (timers, timercnt, active); |
2709 | adjustheap (timers, timercnt, active); |
2457 | } |
2710 | } |
2458 | } |
2711 | } |
2459 | |
2712 | |
2460 | EV_FREQUENT_CHECK; |
|
|
2461 | |
|
|
2462 | ev_at (w) -= mn_now; |
2713 | ev_at (w) -= mn_now; |
2463 | |
2714 | |
2464 | ev_stop (EV_A_ (W)w); |
2715 | ev_stop (EV_A_ (W)w); |
|
|
2716 | |
|
|
2717 | EV_FREQUENT_CHECK; |
2465 | } |
2718 | } |
2466 | |
2719 | |
2467 | void noinline |
2720 | void noinline |
2468 | ev_timer_again (EV_P_ ev_timer *w) |
2721 | ev_timer_again (EV_P_ ev_timer *w) |
2469 | { |
2722 | { |
… | |
… | |
2548 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2801 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2549 | adjustheap (periodics, periodiccnt, active); |
2802 | adjustheap (periodics, periodiccnt, active); |
2550 | } |
2803 | } |
2551 | } |
2804 | } |
2552 | |
2805 | |
2553 | EV_FREQUENT_CHECK; |
|
|
2554 | |
|
|
2555 | ev_stop (EV_A_ (W)w); |
2806 | ev_stop (EV_A_ (W)w); |
|
|
2807 | |
|
|
2808 | EV_FREQUENT_CHECK; |
2556 | } |
2809 | } |
2557 | |
2810 | |
2558 | void noinline |
2811 | void noinline |
2559 | ev_periodic_again (EV_P_ ev_periodic *w) |
2812 | ev_periodic_again (EV_P_ ev_periodic *w) |
2560 | { |
2813 | { |
… | |
… | |
2566 | |
2819 | |
2567 | #ifndef SA_RESTART |
2820 | #ifndef SA_RESTART |
2568 | # define SA_RESTART 0 |
2821 | # define SA_RESTART 0 |
2569 | #endif |
2822 | #endif |
2570 | |
2823 | |
|
|
2824 | #if EV_SIGNAL_ENABLE |
|
|
2825 | |
2571 | void noinline |
2826 | void noinline |
2572 | ev_signal_start (EV_P_ ev_signal *w) |
2827 | ev_signal_start (EV_P_ ev_signal *w) |
2573 | { |
2828 | { |
2574 | #if EV_MULTIPLICITY |
|
|
2575 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2576 | #endif |
|
|
2577 | if (expect_false (ev_is_active (w))) |
2829 | if (expect_false (ev_is_active (w))) |
2578 | return; |
2830 | return; |
2579 | |
2831 | |
2580 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2832 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2581 | |
2833 | |
2582 | evpipe_init (EV_A); |
2834 | #if EV_MULTIPLICITY |
|
|
2835 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2836 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2583 | |
2837 | |
2584 | EV_FREQUENT_CHECK; |
2838 | signals [w->signum - 1].loop = EV_A; |
|
|
2839 | #endif |
2585 | |
2840 | |
|
|
2841 | EV_FREQUENT_CHECK; |
|
|
2842 | |
|
|
2843 | #if EV_USE_SIGNALFD |
|
|
2844 | if (sigfd == -2) |
2586 | { |
2845 | { |
2587 | #ifndef _WIN32 |
2846 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2588 | sigset_t full, prev; |
2847 | if (sigfd < 0 && errno == EINVAL) |
2589 | sigfillset (&full); |
2848 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2590 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2591 | #endif |
|
|
2592 | |
2849 | |
2593 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2850 | if (sigfd >= 0) |
|
|
2851 | { |
|
|
2852 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2594 | |
2853 | |
2595 | #ifndef _WIN32 |
2854 | sigemptyset (&sigfd_set); |
2596 | sigprocmask (SIG_SETMASK, &prev, 0); |
2855 | |
2597 | #endif |
2856 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2857 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2858 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2859 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2860 | } |
2598 | } |
2861 | } |
|
|
2862 | |
|
|
2863 | if (sigfd >= 0) |
|
|
2864 | { |
|
|
2865 | /* TODO: check .head */ |
|
|
2866 | sigaddset (&sigfd_set, w->signum); |
|
|
2867 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2868 | |
|
|
2869 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2870 | } |
|
|
2871 | #endif |
2599 | |
2872 | |
2600 | ev_start (EV_A_ (W)w, 1); |
2873 | ev_start (EV_A_ (W)w, 1); |
2601 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2874 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2602 | |
2875 | |
2603 | if (!((WL)w)->next) |
2876 | if (!((WL)w)->next) |
|
|
2877 | # if EV_USE_SIGNALFD |
|
|
2878 | if (sigfd < 0) /*TODO*/ |
|
|
2879 | # endif |
2604 | { |
2880 | { |
2605 | #if _WIN32 |
2881 | # ifdef _WIN32 |
|
|
2882 | evpipe_init (EV_A); |
|
|
2883 | |
2606 | signal (w->signum, ev_sighandler); |
2884 | signal (w->signum, ev_sighandler); |
2607 | #else |
2885 | # else |
2608 | struct sigaction sa = { }; |
2886 | struct sigaction sa; |
|
|
2887 | |
|
|
2888 | evpipe_init (EV_A); |
|
|
2889 | |
2609 | sa.sa_handler = ev_sighandler; |
2890 | sa.sa_handler = ev_sighandler; |
2610 | sigfillset (&sa.sa_mask); |
2891 | sigfillset (&sa.sa_mask); |
2611 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2892 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2612 | sigaction (w->signum, &sa, 0); |
2893 | sigaction (w->signum, &sa, 0); |
|
|
2894 | |
|
|
2895 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2896 | { |
|
|
2897 | sigemptyset (&sa.sa_mask); |
|
|
2898 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2899 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2900 | } |
2613 | #endif |
2901 | #endif |
2614 | } |
2902 | } |
2615 | |
2903 | |
2616 | EV_FREQUENT_CHECK; |
2904 | EV_FREQUENT_CHECK; |
2617 | } |
2905 | } |
2618 | |
2906 | |
2619 | void noinline |
2907 | void noinline |
… | |
… | |
2627 | |
2915 | |
2628 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2916 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2629 | ev_stop (EV_A_ (W)w); |
2917 | ev_stop (EV_A_ (W)w); |
2630 | |
2918 | |
2631 | if (!signals [w->signum - 1].head) |
2919 | if (!signals [w->signum - 1].head) |
|
|
2920 | { |
|
|
2921 | #if EV_MULTIPLICITY |
|
|
2922 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2923 | #endif |
|
|
2924 | #if EV_USE_SIGNALFD |
|
|
2925 | if (sigfd >= 0) |
|
|
2926 | { |
|
|
2927 | sigset_t ss; |
|
|
2928 | |
|
|
2929 | sigemptyset (&ss); |
|
|
2930 | sigaddset (&ss, w->signum); |
|
|
2931 | sigdelset (&sigfd_set, w->signum); |
|
|
2932 | |
|
|
2933 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2934 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2935 | } |
|
|
2936 | else |
|
|
2937 | #endif |
2632 | signal (w->signum, SIG_DFL); |
2938 | signal (w->signum, SIG_DFL); |
|
|
2939 | } |
2633 | |
2940 | |
2634 | EV_FREQUENT_CHECK; |
2941 | EV_FREQUENT_CHECK; |
2635 | } |
2942 | } |
|
|
2943 | |
|
|
2944 | #endif |
|
|
2945 | |
|
|
2946 | #if EV_CHILD_ENABLE |
2636 | |
2947 | |
2637 | void |
2948 | void |
2638 | ev_child_start (EV_P_ ev_child *w) |
2949 | ev_child_start (EV_P_ ev_child *w) |
2639 | { |
2950 | { |
2640 | #if EV_MULTIPLICITY |
2951 | #if EV_MULTIPLICITY |
… | |
… | |
2644 | return; |
2955 | return; |
2645 | |
2956 | |
2646 | EV_FREQUENT_CHECK; |
2957 | EV_FREQUENT_CHECK; |
2647 | |
2958 | |
2648 | ev_start (EV_A_ (W)w, 1); |
2959 | ev_start (EV_A_ (W)w, 1); |
2649 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2960 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2650 | |
2961 | |
2651 | EV_FREQUENT_CHECK; |
2962 | EV_FREQUENT_CHECK; |
2652 | } |
2963 | } |
2653 | |
2964 | |
2654 | void |
2965 | void |
… | |
… | |
2658 | if (expect_false (!ev_is_active (w))) |
2969 | if (expect_false (!ev_is_active (w))) |
2659 | return; |
2970 | return; |
2660 | |
2971 | |
2661 | EV_FREQUENT_CHECK; |
2972 | EV_FREQUENT_CHECK; |
2662 | |
2973 | |
2663 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2974 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2664 | ev_stop (EV_A_ (W)w); |
2975 | ev_stop (EV_A_ (W)w); |
2665 | |
2976 | |
2666 | EV_FREQUENT_CHECK; |
2977 | EV_FREQUENT_CHECK; |
2667 | } |
2978 | } |
|
|
2979 | |
|
|
2980 | #endif |
2668 | |
2981 | |
2669 | #if EV_STAT_ENABLE |
2982 | #if EV_STAT_ENABLE |
2670 | |
2983 | |
2671 | # ifdef _WIN32 |
2984 | # ifdef _WIN32 |
2672 | # undef lstat |
2985 | # undef lstat |
… | |
… | |
2678 | #define MIN_STAT_INTERVAL 0.1074891 |
2991 | #define MIN_STAT_INTERVAL 0.1074891 |
2679 | |
2992 | |
2680 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2993 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2681 | |
2994 | |
2682 | #if EV_USE_INOTIFY |
2995 | #if EV_USE_INOTIFY |
2683 | # define EV_INOTIFY_BUFSIZE 8192 |
2996 | |
|
|
2997 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2998 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2684 | |
2999 | |
2685 | static void noinline |
3000 | static void noinline |
2686 | infy_add (EV_P_ ev_stat *w) |
3001 | infy_add (EV_P_ ev_stat *w) |
2687 | { |
3002 | { |
2688 | 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); |
3003 | 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); |
2689 | |
3004 | |
2690 | if (w->wd < 0) |
3005 | if (w->wd >= 0) |
|
|
3006 | { |
|
|
3007 | struct statfs sfs; |
|
|
3008 | |
|
|
3009 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3010 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3011 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3012 | |
|
|
3013 | if (!fs_2625) |
|
|
3014 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3015 | else if (!statfs (w->path, &sfs) |
|
|
3016 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3017 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3018 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3019 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3020 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3021 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3022 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3023 | else |
|
|
3024 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2691 | { |
3025 | } |
|
|
3026 | else |
|
|
3027 | { |
|
|
3028 | /* can't use inotify, continue to stat */ |
2692 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3029 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2693 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2694 | |
3030 | |
2695 | /* monitor some parent directory for speedup hints */ |
3031 | /* if path is not there, monitor some parent directory for speedup hints */ |
2696 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3032 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2697 | /* but an efficiency issue only */ |
3033 | /* but an efficiency issue only */ |
2698 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3034 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2699 | { |
3035 | { |
2700 | char path [4096]; |
3036 | char path [4096]; |
… | |
… | |
2716 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3052 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2717 | } |
3053 | } |
2718 | } |
3054 | } |
2719 | |
3055 | |
2720 | if (w->wd >= 0) |
3056 | if (w->wd >= 0) |
2721 | { |
|
|
2722 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3057 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2723 | |
3058 | |
2724 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3059 | /* now re-arm timer, if required */ |
2725 | /* unless the filesystem it known to be local, we therefore still poll */ |
3060 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2726 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2727 | struct statfs sfs; |
|
|
2728 | |
|
|
2729 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2730 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2731 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2732 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2733 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2734 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2735 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2736 | return; |
|
|
2737 | |
|
|
2738 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2739 | ev_timer_again (EV_A_ &w->timer); |
3061 | ev_timer_again (EV_A_ &w->timer); |
2740 | } |
3062 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2741 | } |
3063 | } |
2742 | |
3064 | |
2743 | static void noinline |
3065 | static void noinline |
2744 | infy_del (EV_P_ ev_stat *w) |
3066 | infy_del (EV_P_ ev_stat *w) |
2745 | { |
3067 | { |
… | |
… | |
2748 | |
3070 | |
2749 | if (wd < 0) |
3071 | if (wd < 0) |
2750 | return; |
3072 | return; |
2751 | |
3073 | |
2752 | w->wd = -2; |
3074 | w->wd = -2; |
2753 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3075 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2754 | wlist_del (&fs_hash [slot].head, (WL)w); |
3076 | wlist_del (&fs_hash [slot].head, (WL)w); |
2755 | |
3077 | |
2756 | /* remove this watcher, if others are watching it, they will rearm */ |
3078 | /* remove this watcher, if others are watching it, they will rearm */ |
2757 | inotify_rm_watch (fs_fd, wd); |
3079 | inotify_rm_watch (fs_fd, wd); |
2758 | } |
3080 | } |
… | |
… | |
2760 | static void noinline |
3082 | static void noinline |
2761 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3083 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2762 | { |
3084 | { |
2763 | if (slot < 0) |
3085 | if (slot < 0) |
2764 | /* overflow, need to check for all hash slots */ |
3086 | /* overflow, need to check for all hash slots */ |
2765 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3087 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2766 | infy_wd (EV_A_ slot, wd, ev); |
3088 | infy_wd (EV_A_ slot, wd, ev); |
2767 | else |
3089 | else |
2768 | { |
3090 | { |
2769 | WL w_; |
3091 | WL w_; |
2770 | |
3092 | |
2771 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3093 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2772 | { |
3094 | { |
2773 | ev_stat *w = (ev_stat *)w_; |
3095 | ev_stat *w = (ev_stat *)w_; |
2774 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3096 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2775 | |
3097 | |
2776 | if (w->wd == wd || wd == -1) |
3098 | if (w->wd == wd || wd == -1) |
2777 | { |
3099 | { |
2778 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3100 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2779 | { |
3101 | { |
2780 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3102 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2781 | w->wd = -1; |
3103 | w->wd = -1; |
2782 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3104 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2783 | } |
3105 | } |
2784 | |
3106 | |
2785 | stat_timer_cb (EV_A_ &w->timer, 0); |
3107 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2790 | |
3112 | |
2791 | static void |
3113 | static void |
2792 | infy_cb (EV_P_ ev_io *w, int revents) |
3114 | infy_cb (EV_P_ ev_io *w, int revents) |
2793 | { |
3115 | { |
2794 | char buf [EV_INOTIFY_BUFSIZE]; |
3116 | char buf [EV_INOTIFY_BUFSIZE]; |
2795 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2796 | int ofs; |
3117 | int ofs; |
2797 | int len = read (fs_fd, buf, sizeof (buf)); |
3118 | int len = read (fs_fd, buf, sizeof (buf)); |
2798 | |
3119 | |
2799 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3120 | for (ofs = 0; ofs < len; ) |
|
|
3121 | { |
|
|
3122 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2800 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3123 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3124 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3125 | } |
2801 | } |
3126 | } |
2802 | |
3127 | |
2803 | inline_size void |
3128 | inline_size void |
2804 | check_2625 (EV_P) |
3129 | ev_check_2625 (EV_P) |
2805 | { |
3130 | { |
2806 | /* kernels < 2.6.25 are borked |
3131 | /* kernels < 2.6.25 are borked |
2807 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3132 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2808 | */ |
3133 | */ |
2809 | struct utsname buf; |
3134 | if (ev_linux_version () < 0x020619) |
2810 | int major, minor, micro; |
|
|
2811 | |
|
|
2812 | if (uname (&buf)) |
|
|
2813 | return; |
3135 | return; |
2814 | |
3136 | |
2815 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2816 | return; |
|
|
2817 | |
|
|
2818 | if (major < 2 |
|
|
2819 | || (major == 2 && minor < 6) |
|
|
2820 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2821 | return; |
|
|
2822 | |
|
|
2823 | fs_2625 = 1; |
3137 | fs_2625 = 1; |
|
|
3138 | } |
|
|
3139 | |
|
|
3140 | inline_size int |
|
|
3141 | infy_newfd (void) |
|
|
3142 | { |
|
|
3143 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3144 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3145 | if (fd >= 0) |
|
|
3146 | return fd; |
|
|
3147 | #endif |
|
|
3148 | return inotify_init (); |
2824 | } |
3149 | } |
2825 | |
3150 | |
2826 | inline_size void |
3151 | inline_size void |
2827 | infy_init (EV_P) |
3152 | infy_init (EV_P) |
2828 | { |
3153 | { |
2829 | if (fs_fd != -2) |
3154 | if (fs_fd != -2) |
2830 | return; |
3155 | return; |
2831 | |
3156 | |
2832 | fs_fd = -1; |
3157 | fs_fd = -1; |
2833 | |
3158 | |
2834 | check_2625 (EV_A); |
3159 | ev_check_2625 (EV_A); |
2835 | |
3160 | |
2836 | fs_fd = inotify_init (); |
3161 | fs_fd = infy_newfd (); |
2837 | |
3162 | |
2838 | if (fs_fd >= 0) |
3163 | if (fs_fd >= 0) |
2839 | { |
3164 | { |
|
|
3165 | fd_intern (fs_fd); |
2840 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3166 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2841 | ev_set_priority (&fs_w, EV_MAXPRI); |
3167 | ev_set_priority (&fs_w, EV_MAXPRI); |
2842 | ev_io_start (EV_A_ &fs_w); |
3168 | ev_io_start (EV_A_ &fs_w); |
|
|
3169 | ev_unref (EV_A); |
2843 | } |
3170 | } |
2844 | } |
3171 | } |
2845 | |
3172 | |
2846 | inline_size void |
3173 | inline_size void |
2847 | infy_fork (EV_P) |
3174 | infy_fork (EV_P) |
… | |
… | |
2849 | int slot; |
3176 | int slot; |
2850 | |
3177 | |
2851 | if (fs_fd < 0) |
3178 | if (fs_fd < 0) |
2852 | return; |
3179 | return; |
2853 | |
3180 | |
|
|
3181 | ev_ref (EV_A); |
|
|
3182 | ev_io_stop (EV_A_ &fs_w); |
2854 | close (fs_fd); |
3183 | close (fs_fd); |
2855 | fs_fd = inotify_init (); |
3184 | fs_fd = infy_newfd (); |
2856 | |
3185 | |
|
|
3186 | if (fs_fd >= 0) |
|
|
3187 | { |
|
|
3188 | fd_intern (fs_fd); |
|
|
3189 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3190 | ev_io_start (EV_A_ &fs_w); |
|
|
3191 | ev_unref (EV_A); |
|
|
3192 | } |
|
|
3193 | |
2857 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3194 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2858 | { |
3195 | { |
2859 | WL w_ = fs_hash [slot].head; |
3196 | WL w_ = fs_hash [slot].head; |
2860 | fs_hash [slot].head = 0; |
3197 | fs_hash [slot].head = 0; |
2861 | |
3198 | |
2862 | while (w_) |
3199 | while (w_) |
… | |
… | |
2867 | w->wd = -1; |
3204 | w->wd = -1; |
2868 | |
3205 | |
2869 | if (fs_fd >= 0) |
3206 | if (fs_fd >= 0) |
2870 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3207 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2871 | else |
3208 | else |
|
|
3209 | { |
|
|
3210 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3211 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2872 | ev_timer_again (EV_A_ &w->timer); |
3212 | ev_timer_again (EV_A_ &w->timer); |
|
|
3213 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3214 | } |
2873 | } |
3215 | } |
2874 | } |
3216 | } |
2875 | } |
3217 | } |
2876 | |
3218 | |
2877 | #endif |
3219 | #endif |
… | |
… | |
2894 | static void noinline |
3236 | static void noinline |
2895 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3237 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2896 | { |
3238 | { |
2897 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3239 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2898 | |
3240 | |
2899 | /* we copy this here each the time so that */ |
3241 | ev_statdata prev = w->attr; |
2900 | /* prev has the old value when the callback gets invoked */ |
|
|
2901 | w->prev = w->attr; |
|
|
2902 | ev_stat_stat (EV_A_ w); |
3242 | ev_stat_stat (EV_A_ w); |
2903 | |
3243 | |
2904 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3244 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2905 | if ( |
3245 | if ( |
2906 | w->prev.st_dev != w->attr.st_dev |
3246 | prev.st_dev != w->attr.st_dev |
2907 | || w->prev.st_ino != w->attr.st_ino |
3247 | || prev.st_ino != w->attr.st_ino |
2908 | || w->prev.st_mode != w->attr.st_mode |
3248 | || prev.st_mode != w->attr.st_mode |
2909 | || w->prev.st_nlink != w->attr.st_nlink |
3249 | || prev.st_nlink != w->attr.st_nlink |
2910 | || w->prev.st_uid != w->attr.st_uid |
3250 | || prev.st_uid != w->attr.st_uid |
2911 | || w->prev.st_gid != w->attr.st_gid |
3251 | || prev.st_gid != w->attr.st_gid |
2912 | || w->prev.st_rdev != w->attr.st_rdev |
3252 | || prev.st_rdev != w->attr.st_rdev |
2913 | || w->prev.st_size != w->attr.st_size |
3253 | || prev.st_size != w->attr.st_size |
2914 | || w->prev.st_atime != w->attr.st_atime |
3254 | || prev.st_atime != w->attr.st_atime |
2915 | || w->prev.st_mtime != w->attr.st_mtime |
3255 | || prev.st_mtime != w->attr.st_mtime |
2916 | || w->prev.st_ctime != w->attr.st_ctime |
3256 | || prev.st_ctime != w->attr.st_ctime |
2917 | ) { |
3257 | ) { |
|
|
3258 | /* we only update w->prev on actual differences */ |
|
|
3259 | /* in case we test more often than invoke the callback, */ |
|
|
3260 | /* to ensure that prev is always different to attr */ |
|
|
3261 | w->prev = prev; |
|
|
3262 | |
2918 | #if EV_USE_INOTIFY |
3263 | #if EV_USE_INOTIFY |
2919 | if (fs_fd >= 0) |
3264 | if (fs_fd >= 0) |
2920 | { |
3265 | { |
2921 | infy_del (EV_A_ w); |
3266 | infy_del (EV_A_ w); |
2922 | infy_add (EV_A_ w); |
3267 | infy_add (EV_A_ w); |
… | |
… | |
2947 | |
3292 | |
2948 | if (fs_fd >= 0) |
3293 | if (fs_fd >= 0) |
2949 | infy_add (EV_A_ w); |
3294 | infy_add (EV_A_ w); |
2950 | else |
3295 | else |
2951 | #endif |
3296 | #endif |
|
|
3297 | { |
2952 | ev_timer_again (EV_A_ &w->timer); |
3298 | ev_timer_again (EV_A_ &w->timer); |
|
|
3299 | ev_unref (EV_A); |
|
|
3300 | } |
2953 | |
3301 | |
2954 | ev_start (EV_A_ (W)w, 1); |
3302 | ev_start (EV_A_ (W)w, 1); |
2955 | |
3303 | |
2956 | EV_FREQUENT_CHECK; |
3304 | EV_FREQUENT_CHECK; |
2957 | } |
3305 | } |
… | |
… | |
2966 | EV_FREQUENT_CHECK; |
3314 | EV_FREQUENT_CHECK; |
2967 | |
3315 | |
2968 | #if EV_USE_INOTIFY |
3316 | #if EV_USE_INOTIFY |
2969 | infy_del (EV_A_ w); |
3317 | infy_del (EV_A_ w); |
2970 | #endif |
3318 | #endif |
|
|
3319 | |
|
|
3320 | if (ev_is_active (&w->timer)) |
|
|
3321 | { |
|
|
3322 | ev_ref (EV_A); |
2971 | ev_timer_stop (EV_A_ &w->timer); |
3323 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3324 | } |
2972 | |
3325 | |
2973 | ev_stop (EV_A_ (W)w); |
3326 | ev_stop (EV_A_ (W)w); |
2974 | |
3327 | |
2975 | EV_FREQUENT_CHECK; |
3328 | EV_FREQUENT_CHECK; |
2976 | } |
3329 | } |
… | |
… | |
3021 | |
3374 | |
3022 | EV_FREQUENT_CHECK; |
3375 | EV_FREQUENT_CHECK; |
3023 | } |
3376 | } |
3024 | #endif |
3377 | #endif |
3025 | |
3378 | |
|
|
3379 | #if EV_PREPARE_ENABLE |
3026 | void |
3380 | void |
3027 | ev_prepare_start (EV_P_ ev_prepare *w) |
3381 | ev_prepare_start (EV_P_ ev_prepare *w) |
3028 | { |
3382 | { |
3029 | if (expect_false (ev_is_active (w))) |
3383 | if (expect_false (ev_is_active (w))) |
3030 | return; |
3384 | return; |
… | |
… | |
3056 | |
3410 | |
3057 | ev_stop (EV_A_ (W)w); |
3411 | ev_stop (EV_A_ (W)w); |
3058 | |
3412 | |
3059 | EV_FREQUENT_CHECK; |
3413 | EV_FREQUENT_CHECK; |
3060 | } |
3414 | } |
|
|
3415 | #endif |
3061 | |
3416 | |
|
|
3417 | #if EV_CHECK_ENABLE |
3062 | void |
3418 | void |
3063 | ev_check_start (EV_P_ ev_check *w) |
3419 | ev_check_start (EV_P_ ev_check *w) |
3064 | { |
3420 | { |
3065 | if (expect_false (ev_is_active (w))) |
3421 | if (expect_false (ev_is_active (w))) |
3066 | return; |
3422 | return; |
… | |
… | |
3092 | |
3448 | |
3093 | ev_stop (EV_A_ (W)w); |
3449 | ev_stop (EV_A_ (W)w); |
3094 | |
3450 | |
3095 | EV_FREQUENT_CHECK; |
3451 | EV_FREQUENT_CHECK; |
3096 | } |
3452 | } |
|
|
3453 | #endif |
3097 | |
3454 | |
3098 | #if EV_EMBED_ENABLE |
3455 | #if EV_EMBED_ENABLE |
3099 | void noinline |
3456 | void noinline |
3100 | ev_embed_sweep (EV_P_ ev_embed *w) |
3457 | ev_embed_sweep (EV_P_ ev_embed *w) |
3101 | { |
3458 | { |
3102 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3459 | ev_run (w->other, EVRUN_NOWAIT); |
3103 | } |
3460 | } |
3104 | |
3461 | |
3105 | static void |
3462 | static void |
3106 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3463 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3107 | { |
3464 | { |
3108 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3465 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3109 | |
3466 | |
3110 | if (ev_cb (w)) |
3467 | if (ev_cb (w)) |
3111 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3468 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3112 | else |
3469 | else |
3113 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3470 | ev_run (w->other, EVRUN_NOWAIT); |
3114 | } |
3471 | } |
3115 | |
3472 | |
3116 | static void |
3473 | static void |
3117 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3474 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3118 | { |
3475 | { |
3119 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3476 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3120 | |
3477 | |
3121 | { |
3478 | { |
3122 | struct ev_loop *loop = w->other; |
3479 | EV_P = w->other; |
3123 | |
3480 | |
3124 | while (fdchangecnt) |
3481 | while (fdchangecnt) |
3125 | { |
3482 | { |
3126 | fd_reify (EV_A); |
3483 | fd_reify (EV_A); |
3127 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3484 | ev_run (EV_A_ EVRUN_NOWAIT); |
3128 | } |
3485 | } |
3129 | } |
3486 | } |
3130 | } |
3487 | } |
3131 | |
3488 | |
3132 | static void |
3489 | static void |
… | |
… | |
3135 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3492 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3136 | |
3493 | |
3137 | ev_embed_stop (EV_A_ w); |
3494 | ev_embed_stop (EV_A_ w); |
3138 | |
3495 | |
3139 | { |
3496 | { |
3140 | struct ev_loop *loop = w->other; |
3497 | EV_P = w->other; |
3141 | |
3498 | |
3142 | ev_loop_fork (EV_A); |
3499 | ev_loop_fork (EV_A); |
3143 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3500 | ev_run (EV_A_ EVRUN_NOWAIT); |
3144 | } |
3501 | } |
3145 | |
3502 | |
3146 | ev_embed_start (EV_A_ w); |
3503 | ev_embed_start (EV_A_ w); |
3147 | } |
3504 | } |
3148 | |
3505 | |
… | |
… | |
3159 | { |
3516 | { |
3160 | if (expect_false (ev_is_active (w))) |
3517 | if (expect_false (ev_is_active (w))) |
3161 | return; |
3518 | return; |
3162 | |
3519 | |
3163 | { |
3520 | { |
3164 | struct ev_loop *loop = w->other; |
3521 | EV_P = w->other; |
3165 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3522 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3166 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3523 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3167 | } |
3524 | } |
3168 | |
3525 | |
3169 | EV_FREQUENT_CHECK; |
3526 | EV_FREQUENT_CHECK; |
… | |
… | |
3196 | |
3553 | |
3197 | ev_io_stop (EV_A_ &w->io); |
3554 | ev_io_stop (EV_A_ &w->io); |
3198 | ev_prepare_stop (EV_A_ &w->prepare); |
3555 | ev_prepare_stop (EV_A_ &w->prepare); |
3199 | ev_fork_stop (EV_A_ &w->fork); |
3556 | ev_fork_stop (EV_A_ &w->fork); |
3200 | |
3557 | |
|
|
3558 | ev_stop (EV_A_ (W)w); |
|
|
3559 | |
3201 | EV_FREQUENT_CHECK; |
3560 | EV_FREQUENT_CHECK; |
3202 | } |
3561 | } |
3203 | #endif |
3562 | #endif |
3204 | |
3563 | |
3205 | #if EV_FORK_ENABLE |
3564 | #if EV_FORK_ENABLE |
… | |
… | |
3238 | |
3597 | |
3239 | EV_FREQUENT_CHECK; |
3598 | EV_FREQUENT_CHECK; |
3240 | } |
3599 | } |
3241 | #endif |
3600 | #endif |
3242 | |
3601 | |
3243 | #if EV_ASYNC_ENABLE |
3602 | #if EV_CLEANUP_ENABLE |
3244 | void |
3603 | void |
3245 | ev_async_start (EV_P_ ev_async *w) |
3604 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3246 | { |
3605 | { |
3247 | if (expect_false (ev_is_active (w))) |
3606 | if (expect_false (ev_is_active (w))) |
3248 | return; |
3607 | return; |
|
|
3608 | |
|
|
3609 | EV_FREQUENT_CHECK; |
|
|
3610 | |
|
|
3611 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3612 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3613 | cleanups [cleanupcnt - 1] = w; |
|
|
3614 | |
|
|
3615 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3616 | ev_unref (EV_A); |
|
|
3617 | EV_FREQUENT_CHECK; |
|
|
3618 | } |
|
|
3619 | |
|
|
3620 | void |
|
|
3621 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3622 | { |
|
|
3623 | clear_pending (EV_A_ (W)w); |
|
|
3624 | if (expect_false (!ev_is_active (w))) |
|
|
3625 | return; |
|
|
3626 | |
|
|
3627 | EV_FREQUENT_CHECK; |
|
|
3628 | ev_ref (EV_A); |
|
|
3629 | |
|
|
3630 | { |
|
|
3631 | int active = ev_active (w); |
|
|
3632 | |
|
|
3633 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3634 | ev_active (cleanups [active - 1]) = active; |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | ev_stop (EV_A_ (W)w); |
|
|
3638 | |
|
|
3639 | EV_FREQUENT_CHECK; |
|
|
3640 | } |
|
|
3641 | #endif |
|
|
3642 | |
|
|
3643 | #if EV_ASYNC_ENABLE |
|
|
3644 | void |
|
|
3645 | ev_async_start (EV_P_ ev_async *w) |
|
|
3646 | { |
|
|
3647 | if (expect_false (ev_is_active (w))) |
|
|
3648 | return; |
|
|
3649 | |
|
|
3650 | w->sent = 0; |
3249 | |
3651 | |
3250 | evpipe_init (EV_A); |
3652 | evpipe_init (EV_A); |
3251 | |
3653 | |
3252 | EV_FREQUENT_CHECK; |
3654 | EV_FREQUENT_CHECK; |
3253 | |
3655 | |
… | |
… | |
3281 | |
3683 | |
3282 | void |
3684 | void |
3283 | ev_async_send (EV_P_ ev_async *w) |
3685 | ev_async_send (EV_P_ ev_async *w) |
3284 | { |
3686 | { |
3285 | w->sent = 1; |
3687 | w->sent = 1; |
3286 | evpipe_write (EV_A_ &gotasync); |
3688 | evpipe_write (EV_A_ &async_pending); |
3287 | } |
3689 | } |
3288 | #endif |
3690 | #endif |
3289 | |
3691 | |
3290 | /*****************************************************************************/ |
3692 | /*****************************************************************************/ |
3291 | |
3693 | |
… | |
… | |
3331 | { |
3733 | { |
3332 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3734 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3333 | |
3735 | |
3334 | if (expect_false (!once)) |
3736 | if (expect_false (!once)) |
3335 | { |
3737 | { |
3336 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3738 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3337 | return; |
3739 | return; |
3338 | } |
3740 | } |
3339 | |
3741 | |
3340 | once->cb = cb; |
3742 | once->cb = cb; |
3341 | once->arg = arg; |
3743 | once->arg = arg; |
… | |
… | |
3428 | if (types & EV_ASYNC) |
3830 | if (types & EV_ASYNC) |
3429 | for (i = asynccnt; i--; ) |
3831 | for (i = asynccnt; i--; ) |
3430 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3832 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3431 | #endif |
3833 | #endif |
3432 | |
3834 | |
|
|
3835 | #if EV_PREPARE_ENABLE |
3433 | if (types & EV_PREPARE) |
3836 | if (types & EV_PREPARE) |
3434 | for (i = preparecnt; i--; ) |
3837 | for (i = preparecnt; i--; ) |
3435 | #if EV_EMBED_ENABLE |
3838 | # if EV_EMBED_ENABLE |
3436 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3839 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3437 | #endif |
3840 | # endif |
3438 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3841 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3842 | #endif |
3439 | |
3843 | |
|
|
3844 | #if EV_CHECK_ENABLE |
3440 | if (types & EV_CHECK) |
3845 | if (types & EV_CHECK) |
3441 | for (i = checkcnt; i--; ) |
3846 | for (i = checkcnt; i--; ) |
3442 | cb (EV_A_ EV_CHECK, checks [i]); |
3847 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3848 | #endif |
3443 | |
3849 | |
|
|
3850 | #if EV_SIGNAL_ENABLE |
3444 | if (types & EV_SIGNAL) |
3851 | if (types & EV_SIGNAL) |
3445 | for (i = 0; i < signalmax; ++i) |
3852 | for (i = 0; i < EV_NSIG - 1; ++i) |
3446 | for (wl = signals [i].head; wl; ) |
3853 | for (wl = signals [i].head; wl; ) |
3447 | { |
3854 | { |
3448 | wn = wl->next; |
3855 | wn = wl->next; |
3449 | cb (EV_A_ EV_SIGNAL, wl); |
3856 | cb (EV_A_ EV_SIGNAL, wl); |
3450 | wl = wn; |
3857 | wl = wn; |
3451 | } |
3858 | } |
|
|
3859 | #endif |
3452 | |
3860 | |
|
|
3861 | #if EV_CHILD_ENABLE |
3453 | if (types & EV_CHILD) |
3862 | if (types & EV_CHILD) |
3454 | for (i = EV_PID_HASHSIZE; i--; ) |
3863 | for (i = (EV_PID_HASHSIZE); i--; ) |
3455 | for (wl = childs [i]; wl; ) |
3864 | for (wl = childs [i]; wl; ) |
3456 | { |
3865 | { |
3457 | wn = wl->next; |
3866 | wn = wl->next; |
3458 | cb (EV_A_ EV_CHILD, wl); |
3867 | cb (EV_A_ EV_CHILD, wl); |
3459 | wl = wn; |
3868 | wl = wn; |
3460 | } |
3869 | } |
|
|
3870 | #endif |
3461 | /* EV_STAT 0x00001000 /* stat data changed */ |
3871 | /* EV_STAT 0x00001000 /* stat data changed */ |
3462 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3872 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3463 | } |
3873 | } |
3464 | #endif |
3874 | #endif |
3465 | |
3875 | |
3466 | #if EV_MULTIPLICITY |
3876 | #if EV_MULTIPLICITY |
3467 | #include "ev_wrap.h" |
3877 | #include "ev_wrap.h" |
3468 | #endif |
3878 | #endif |
3469 | |
3879 | |
3470 | #ifdef __cplusplus |
3880 | EV_CPP(}) |
3471 | } |
|
|
3472 | #endif |
|
|
3473 | |
3881 | |