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 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 |
|
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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 |
|
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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 */ |
|
|
230 | #else |
|
|
231 | # error "unable to find value for NSIG, please report" |
|
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232 | /* to make it compile regardless, just remove the above line, */ |
|
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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 | |
… | |
… | |
339 | #endif |
399 | #endif |
340 | |
400 | |
341 | #if EV_USE_EVENTFD |
401 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
403 | # include <stdint.h> |
344 | # ifdef __cplusplus |
404 | # ifndef EFD_NONBLOCK |
345 | extern "C" { |
405 | # define EFD_NONBLOCK O_NONBLOCK |
346 | # endif |
406 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
407 | # ifndef EFD_CLOEXEC |
348 | # ifdef __cplusplus |
408 | # ifdef O_CLOEXEC |
349 | } |
409 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
410 | # else |
|
|
411 | # define EFD_CLOEXEC 02000000 |
|
|
412 | # endif |
350 | # endif |
413 | # endif |
|
|
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
415 | #endif |
|
|
416 | |
|
|
417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
422 | # endif |
|
|
423 | # ifndef SFD_CLOEXEC |
|
|
424 | # ifdef O_CLOEXEC |
|
|
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
|
|
429 | # endif |
|
|
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
351 | #endif |
437 | #endif |
352 | |
438 | |
353 | /**/ |
439 | /**/ |
354 | |
440 | |
355 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
443 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
445 | #endif |
360 | |
446 | |
361 | /* |
447 | /* |
… | |
… | |
368 | */ |
454 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
456 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
374 | |
462 | |
375 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
378 | #else |
466 | #else |
… | |
… | |
385 | |
473 | |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
388 | #define inline_size static inline |
476 | #define inline_size static inline |
389 | |
477 | |
390 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
391 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
392 | #else |
488 | #else |
393 | # define inline_speed static inline |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
398 | |
491 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
494 | |
402 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
… | |
… | |
406 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
407 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
408 | |
501 | |
409 | #if EV_USE_REALTIME |
502 | #if EV_USE_REALTIME |
410 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
411 | /* giving it a reasonably high chance of working on typical architetcures */ |
504 | /* giving it a reasonably high chance of working on typical architectures */ |
412 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
413 | #endif |
506 | #endif |
414 | |
507 | |
415 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
417 | #endif |
510 | #endif |
418 | |
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
|
|
521 | |
419 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
420 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
421 | #endif |
524 | #endif |
422 | |
525 | |
423 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
|
|
527 | |
|
|
528 | #if EV_AVOID_STDIO |
|
|
529 | static void noinline |
|
|
530 | ev_printerr (const char *msg) |
|
|
531 | { |
|
|
532 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
533 | } |
|
|
534 | #endif |
424 | |
535 | |
425 | static void (*syserr_cb)(const char *msg); |
536 | static void (*syserr_cb)(const char *msg); |
426 | |
537 | |
427 | void |
538 | void |
428 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
539 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
438 | |
549 | |
439 | if (syserr_cb) |
550 | if (syserr_cb) |
440 | syserr_cb (msg); |
551 | syserr_cb (msg); |
441 | else |
552 | else |
442 | { |
553 | { |
|
|
554 | #if EV_AVOID_STDIO |
|
|
555 | const char *err = strerror (errno); |
|
|
556 | |
|
|
557 | ev_printerr (msg); |
|
|
558 | ev_printerr (": "); |
|
|
559 | ev_printerr (err); |
|
|
560 | ev_printerr ("\n"); |
|
|
561 | #else |
443 | perror (msg); |
562 | perror (msg); |
|
|
563 | #endif |
444 | abort (); |
564 | abort (); |
445 | } |
565 | } |
446 | } |
566 | } |
447 | |
567 | |
448 | static void * |
568 | static void * |
449 | ev_realloc_emul (void *ptr, long size) |
569 | ev_realloc_emul (void *ptr, long size) |
450 | { |
570 | { |
|
|
571 | #if __GLIBC__ |
|
|
572 | return realloc (ptr, size); |
|
|
573 | #else |
451 | /* some systems, notably openbsd and darwin, fail to properly |
574 | /* some systems, notably openbsd and darwin, fail to properly |
452 | * implement realloc (x, 0) (as required by both ansi c-98 and |
575 | * implement realloc (x, 0) (as required by both ansi c-89 and |
453 | * the single unix specification, so work around them here. |
576 | * the single unix specification, so work around them here. |
454 | */ |
577 | */ |
455 | |
578 | |
456 | if (size) |
579 | if (size) |
457 | return realloc (ptr, size); |
580 | return realloc (ptr, size); |
458 | |
581 | |
459 | free (ptr); |
582 | free (ptr); |
460 | return 0; |
583 | return 0; |
|
|
584 | #endif |
461 | } |
585 | } |
462 | |
586 | |
463 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
587 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
464 | |
588 | |
465 | void |
589 | void |
… | |
… | |
473 | { |
597 | { |
474 | ptr = alloc (ptr, size); |
598 | ptr = alloc (ptr, size); |
475 | |
599 | |
476 | if (!ptr && size) |
600 | if (!ptr && size) |
477 | { |
601 | { |
|
|
602 | #if EV_AVOID_STDIO |
|
|
603 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
604 | #else |
478 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
605 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
606 | #endif |
479 | abort (); |
607 | abort (); |
480 | } |
608 | } |
481 | |
609 | |
482 | return ptr; |
610 | return ptr; |
483 | } |
611 | } |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
613 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
614 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
615 | |
488 | /*****************************************************************************/ |
616 | /*****************************************************************************/ |
489 | |
617 | |
|
|
618 | /* set in reify when reification needed */ |
|
|
619 | #define EV_ANFD_REIFY 1 |
|
|
620 | |
490 | /* file descriptor info structure */ |
621 | /* file descriptor info structure */ |
491 | typedef struct |
622 | typedef struct |
492 | { |
623 | { |
493 | WL head; |
624 | WL head; |
494 | unsigned char events; /* the events watched for */ |
625 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
626 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
627 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
628 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
629 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
630 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
631 | #endif |
… | |
… | |
562 | |
693 | |
563 | static int ev_default_loop_ptr; |
694 | static int ev_default_loop_ptr; |
564 | |
695 | |
565 | #endif |
696 | #endif |
566 | |
697 | |
|
|
698 | #if EV_FEATURE_API |
|
|
699 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
700 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
701 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
702 | #else |
|
|
703 | # define EV_RELEASE_CB (void)0 |
|
|
704 | # define EV_ACQUIRE_CB (void)0 |
|
|
705 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define EVBREAK_RECURSE 0x80 |
|
|
709 | |
567 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
568 | |
711 | |
569 | #ifndef EV_HAVE_EV_TIME |
712 | #ifndef EV_HAVE_EV_TIME |
570 | ev_tstamp |
713 | ev_tstamp |
571 | ev_time (void) |
714 | ev_time (void) |
… | |
… | |
614 | if (delay > 0.) |
757 | if (delay > 0.) |
615 | { |
758 | { |
616 | #if EV_USE_NANOSLEEP |
759 | #if EV_USE_NANOSLEEP |
617 | struct timespec ts; |
760 | struct timespec ts; |
618 | |
761 | |
619 | ts.tv_sec = (time_t)delay; |
762 | EV_TS_SET (ts, delay); |
620 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
621 | |
|
|
622 | nanosleep (&ts, 0); |
763 | nanosleep (&ts, 0); |
623 | #elif defined(_WIN32) |
764 | #elif defined(_WIN32) |
624 | Sleep ((unsigned long)(delay * 1e3)); |
765 | Sleep ((unsigned long)(delay * 1e3)); |
625 | #else |
766 | #else |
626 | struct timeval tv; |
767 | struct timeval tv; |
627 | |
768 | |
628 | tv.tv_sec = (time_t)delay; |
|
|
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
630 | |
|
|
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
632 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
633 | /* by older ones */ |
771 | /* by older ones */ |
|
|
772 | EV_TV_SET (tv, delay); |
634 | select (0, 0, 0, 0, &tv); |
773 | select (0, 0, 0, 0, &tv); |
635 | #endif |
774 | #endif |
636 | } |
775 | } |
637 | } |
776 | } |
638 | |
777 | |
639 | /*****************************************************************************/ |
778 | /*****************************************************************************/ |
640 | |
779 | |
641 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
780 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
642 | |
781 | |
643 | /* find a suitable new size for the given array, */ |
782 | /* find a suitable new size for the given array, */ |
644 | /* hopefully by rounding to a ncie-to-malloc size */ |
783 | /* hopefully by rounding to a nice-to-malloc size */ |
645 | inline_size int |
784 | inline_size int |
646 | array_nextsize (int elem, int cur, int cnt) |
785 | array_nextsize (int elem, int cur, int cnt) |
647 | { |
786 | { |
648 | int ncur = cur + 1; |
787 | int ncur = cur + 1; |
649 | |
788 | |
… | |
… | |
745 | } |
884 | } |
746 | |
885 | |
747 | /*****************************************************************************/ |
886 | /*****************************************************************************/ |
748 | |
887 | |
749 | inline_speed void |
888 | inline_speed void |
750 | fd_event (EV_P_ int fd, int revents) |
889 | fd_event_nocheck (EV_P_ int fd, int revents) |
751 | { |
890 | { |
752 | ANFD *anfd = anfds + fd; |
891 | ANFD *anfd = anfds + fd; |
753 | ev_io *w; |
892 | ev_io *w; |
754 | |
893 | |
755 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
894 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
759 | if (ev) |
898 | if (ev) |
760 | ev_feed_event (EV_A_ (W)w, ev); |
899 | ev_feed_event (EV_A_ (W)w, ev); |
761 | } |
900 | } |
762 | } |
901 | } |
763 | |
902 | |
|
|
903 | /* do not submit kernel events for fds that have reify set */ |
|
|
904 | /* because that means they changed while we were polling for new events */ |
|
|
905 | inline_speed void |
|
|
906 | fd_event (EV_P_ int fd, int revents) |
|
|
907 | { |
|
|
908 | ANFD *anfd = anfds + fd; |
|
|
909 | |
|
|
910 | if (expect_true (!anfd->reify)) |
|
|
911 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
912 | } |
|
|
913 | |
764 | void |
914 | void |
765 | ev_feed_fd_event (EV_P_ int fd, int revents) |
915 | ev_feed_fd_event (EV_P_ int fd, int revents) |
766 | { |
916 | { |
767 | if (fd >= 0 && fd < anfdmax) |
917 | if (fd >= 0 && fd < anfdmax) |
768 | fd_event (EV_A_ fd, revents); |
918 | fd_event_nocheck (EV_A_ fd, revents); |
769 | } |
919 | } |
770 | |
920 | |
771 | /* make sure the external fd watch events are in-sync */ |
921 | /* make sure the external fd watch events are in-sync */ |
772 | /* with the kernel/libev internal state */ |
922 | /* with the kernel/libev internal state */ |
773 | inline_size void |
923 | inline_size void |
… | |
… | |
779 | { |
929 | { |
780 | int fd = fdchanges [i]; |
930 | int fd = fdchanges [i]; |
781 | ANFD *anfd = anfds + fd; |
931 | ANFD *anfd = anfds + fd; |
782 | ev_io *w; |
932 | ev_io *w; |
783 | |
933 | |
784 | unsigned char events = 0; |
934 | unsigned char o_events = anfd->events; |
|
|
935 | unsigned char o_reify = anfd->reify; |
785 | |
936 | |
786 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
937 | anfd->reify = 0; |
787 | events |= (unsigned char)w->events; |
|
|
788 | |
938 | |
789 | #if EV_SELECT_IS_WINSOCKET |
939 | #if EV_SELECT_IS_WINSOCKET |
790 | if (events) |
940 | if (o_reify & EV__IOFDSET) |
791 | { |
941 | { |
792 | unsigned long arg; |
942 | unsigned long arg; |
793 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
794 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
943 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
795 | #else |
|
|
796 | anfd->handle = _get_osfhandle (fd); |
|
|
797 | #endif |
|
|
798 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
944 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
799 | } |
945 | } |
800 | #endif |
946 | #endif |
801 | |
947 | |
|
|
948 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
802 | { |
949 | { |
803 | unsigned char o_events = anfd->events; |
|
|
804 | unsigned char o_reify = anfd->reify; |
|
|
805 | |
|
|
806 | anfd->reify = 0; |
|
|
807 | anfd->events = events; |
950 | anfd->events = 0; |
808 | |
951 | |
809 | if (o_events != events || o_reify & EV__IOFDSET) |
952 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
953 | anfd->events |= (unsigned char)w->events; |
|
|
954 | |
|
|
955 | if (o_events != anfd->events) |
|
|
956 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
957 | } |
|
|
958 | |
|
|
959 | if (o_reify & EV__IOFDSET) |
810 | backend_modify (EV_A_ fd, o_events, events); |
960 | backend_modify (EV_A_ fd, o_events, anfd->events); |
811 | } |
|
|
812 | } |
961 | } |
813 | |
962 | |
814 | fdchangecnt = 0; |
963 | fdchangecnt = 0; |
815 | } |
964 | } |
816 | |
965 | |
… | |
… | |
840 | ev_io_stop (EV_A_ w); |
989 | ev_io_stop (EV_A_ w); |
841 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
990 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
842 | } |
991 | } |
843 | } |
992 | } |
844 | |
993 | |
845 | /* check whether the given fd is atcually valid, for error recovery */ |
994 | /* check whether the given fd is actually valid, for error recovery */ |
846 | inline_size int |
995 | inline_size int |
847 | fd_valid (int fd) |
996 | fd_valid (int fd) |
848 | { |
997 | { |
849 | #ifdef _WIN32 |
998 | #ifdef _WIN32 |
850 | return _get_osfhandle (fd) != -1; |
999 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
851 | #else |
1000 | #else |
852 | return fcntl (fd, F_GETFD) != -1; |
1001 | return fcntl (fd, F_GETFD) != -1; |
853 | #endif |
1002 | #endif |
854 | } |
1003 | } |
855 | |
1004 | |
… | |
… | |
873 | |
1022 | |
874 | for (fd = anfdmax; fd--; ) |
1023 | for (fd = anfdmax; fd--; ) |
875 | if (anfds [fd].events) |
1024 | if (anfds [fd].events) |
876 | { |
1025 | { |
877 | fd_kill (EV_A_ fd); |
1026 | fd_kill (EV_A_ fd); |
878 | return; |
1027 | break; |
879 | } |
1028 | } |
880 | } |
1029 | } |
881 | |
1030 | |
882 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1031 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
883 | static void noinline |
1032 | static void noinline |
… | |
… | |
888 | for (fd = 0; fd < anfdmax; ++fd) |
1037 | for (fd = 0; fd < anfdmax; ++fd) |
889 | if (anfds [fd].events) |
1038 | if (anfds [fd].events) |
890 | { |
1039 | { |
891 | anfds [fd].events = 0; |
1040 | anfds [fd].events = 0; |
892 | anfds [fd].emask = 0; |
1041 | anfds [fd].emask = 0; |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1042 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
894 | } |
1043 | } |
895 | } |
1044 | } |
896 | |
1045 | |
|
|
1046 | /* used to prepare libev internal fd's */ |
|
|
1047 | /* this is not fork-safe */ |
|
|
1048 | inline_speed void |
|
|
1049 | fd_intern (int fd) |
|
|
1050 | { |
|
|
1051 | #ifdef _WIN32 |
|
|
1052 | unsigned long arg = 1; |
|
|
1053 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1054 | #else |
|
|
1055 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1056 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1057 | #endif |
|
|
1058 | } |
|
|
1059 | |
897 | /*****************************************************************************/ |
1060 | /*****************************************************************************/ |
898 | |
1061 | |
899 | /* |
1062 | /* |
900 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1063 | * the heap functions want a real array index. array index 0 is guaranteed to not |
901 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1064 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
902 | * the branching factor of the d-tree. |
1065 | * the branching factor of the d-tree. |
903 | */ |
1066 | */ |
904 | |
1067 | |
905 | /* |
1068 | /* |
… | |
… | |
973 | |
1136 | |
974 | for (;;) |
1137 | for (;;) |
975 | { |
1138 | { |
976 | int c = k << 1; |
1139 | int c = k << 1; |
977 | |
1140 | |
978 | if (c > N + HEAP0 - 1) |
1141 | if (c >= N + HEAP0) |
979 | break; |
1142 | break; |
980 | |
1143 | |
981 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1144 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
982 | ? 1 : 0; |
1145 | ? 1 : 0; |
983 | |
1146 | |
… | |
… | |
1019 | |
1182 | |
1020 | /* move an element suitably so it is in a correct place */ |
1183 | /* move an element suitably so it is in a correct place */ |
1021 | inline_size void |
1184 | inline_size void |
1022 | adjustheap (ANHE *heap, int N, int k) |
1185 | adjustheap (ANHE *heap, int N, int k) |
1023 | { |
1186 | { |
1024 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1187 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1025 | upheap (heap, k); |
1188 | upheap (heap, k); |
1026 | else |
1189 | else |
1027 | downheap (heap, N, k); |
1190 | downheap (heap, N, k); |
1028 | } |
1191 | } |
1029 | |
1192 | |
… | |
… | |
1042 | /*****************************************************************************/ |
1205 | /*****************************************************************************/ |
1043 | |
1206 | |
1044 | /* associate signal watchers to a signal signal */ |
1207 | /* associate signal watchers to a signal signal */ |
1045 | typedef struct |
1208 | typedef struct |
1046 | { |
1209 | { |
|
|
1210 | EV_ATOMIC_T pending; |
|
|
1211 | #if EV_MULTIPLICITY |
|
|
1212 | EV_P; |
|
|
1213 | #endif |
1047 | WL head; |
1214 | WL head; |
1048 | EV_ATOMIC_T gotsig; |
|
|
1049 | } ANSIG; |
1215 | } ANSIG; |
1050 | |
1216 | |
1051 | static ANSIG *signals; |
1217 | static ANSIG signals [EV_NSIG - 1]; |
1052 | static int signalmax; |
|
|
1053 | |
|
|
1054 | static EV_ATOMIC_T gotsig; |
|
|
1055 | |
1218 | |
1056 | /*****************************************************************************/ |
1219 | /*****************************************************************************/ |
1057 | |
1220 | |
1058 | /* used to prepare libev internal fd's */ |
1221 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1059 | /* this is not fork-safe */ |
|
|
1060 | inline_speed void |
|
|
1061 | fd_intern (int fd) |
|
|
1062 | { |
|
|
1063 | #ifdef _WIN32 |
|
|
1064 | unsigned long arg = 1; |
|
|
1065 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1066 | #else |
|
|
1067 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1068 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1069 | #endif |
|
|
1070 | } |
|
|
1071 | |
1222 | |
1072 | static void noinline |
1223 | static void noinline |
1073 | evpipe_init (EV_P) |
1224 | evpipe_init (EV_P) |
1074 | { |
1225 | { |
1075 | if (!ev_is_active (&pipe_w)) |
1226 | if (!ev_is_active (&pipe_w)) |
1076 | { |
1227 | { |
1077 | #if EV_USE_EVENTFD |
1228 | # if EV_USE_EVENTFD |
|
|
1229 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1230 | if (evfd < 0 && errno == EINVAL) |
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
1231 | evfd = eventfd (0, 0); |
|
|
1232 | |
|
|
1233 | if (evfd >= 0) |
1079 | { |
1234 | { |
1080 | evpipe [0] = -1; |
1235 | evpipe [0] = -1; |
1081 | fd_intern (evfd); |
1236 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
1237 | ev_io_set (&pipe_w, evfd, EV_READ); |
1083 | } |
1238 | } |
1084 | else |
1239 | else |
1085 | #endif |
1240 | # endif |
1086 | { |
1241 | { |
1087 | while (pipe (evpipe)) |
1242 | while (pipe (evpipe)) |
1088 | ev_syserr ("(libev) error creating signal/async pipe"); |
1243 | ev_syserr ("(libev) error creating signal/async pipe"); |
1089 | |
1244 | |
1090 | fd_intern (evpipe [0]); |
1245 | fd_intern (evpipe [0]); |
… | |
… | |
1101 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1256 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1102 | { |
1257 | { |
1103 | if (!*flag) |
1258 | if (!*flag) |
1104 | { |
1259 | { |
1105 | int old_errno = errno; /* save errno because write might clobber it */ |
1260 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1261 | char dummy; |
1106 | |
1262 | |
1107 | *flag = 1; |
1263 | *flag = 1; |
1108 | |
1264 | |
1109 | #if EV_USE_EVENTFD |
1265 | #if EV_USE_EVENTFD |
1110 | if (evfd >= 0) |
1266 | if (evfd >= 0) |
… | |
… | |
1112 | uint64_t counter = 1; |
1268 | uint64_t counter = 1; |
1113 | write (evfd, &counter, sizeof (uint64_t)); |
1269 | write (evfd, &counter, sizeof (uint64_t)); |
1114 | } |
1270 | } |
1115 | else |
1271 | else |
1116 | #endif |
1272 | #endif |
|
|
1273 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1274 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1275 | /* so when you think this write should be a send instead, please find out */ |
|
|
1276 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1277 | /* tell me. thank you. */ |
1117 | write (evpipe [1], &old_errno, 1); |
1278 | write (evpipe [1], &dummy, 1); |
1118 | |
1279 | |
1119 | errno = old_errno; |
1280 | errno = old_errno; |
1120 | } |
1281 | } |
1121 | } |
1282 | } |
1122 | |
1283 | |
1123 | /* called whenever the libev signal pipe */ |
1284 | /* called whenever the libev signal pipe */ |
1124 | /* got some events (signal, async) */ |
1285 | /* got some events (signal, async) */ |
1125 | static void |
1286 | static void |
1126 | pipecb (EV_P_ ev_io *iow, int revents) |
1287 | pipecb (EV_P_ ev_io *iow, int revents) |
1127 | { |
1288 | { |
|
|
1289 | int i; |
|
|
1290 | |
1128 | #if EV_USE_EVENTFD |
1291 | #if EV_USE_EVENTFD |
1129 | if (evfd >= 0) |
1292 | if (evfd >= 0) |
1130 | { |
1293 | { |
1131 | uint64_t counter; |
1294 | uint64_t counter; |
1132 | read (evfd, &counter, sizeof (uint64_t)); |
1295 | read (evfd, &counter, sizeof (uint64_t)); |
1133 | } |
1296 | } |
1134 | else |
1297 | else |
1135 | #endif |
1298 | #endif |
1136 | { |
1299 | { |
1137 | char dummy; |
1300 | char dummy; |
|
|
1301 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1138 | read (evpipe [0], &dummy, 1); |
1302 | read (evpipe [0], &dummy, 1); |
1139 | } |
1303 | } |
1140 | |
1304 | |
1141 | if (gotsig && ev_is_default_loop (EV_A)) |
1305 | if (sig_pending) |
1142 | { |
1306 | { |
1143 | int signum; |
1307 | sig_pending = 0; |
1144 | gotsig = 0; |
|
|
1145 | |
1308 | |
1146 | for (signum = signalmax; signum--; ) |
1309 | for (i = EV_NSIG - 1; i--; ) |
1147 | if (signals [signum].gotsig) |
1310 | if (expect_false (signals [i].pending)) |
1148 | ev_feed_signal_event (EV_A_ signum + 1); |
1311 | ev_feed_signal_event (EV_A_ i + 1); |
1149 | } |
1312 | } |
1150 | |
1313 | |
1151 | #if EV_ASYNC_ENABLE |
1314 | #if EV_ASYNC_ENABLE |
1152 | if (gotasync) |
1315 | if (async_pending) |
1153 | { |
1316 | { |
1154 | int i; |
1317 | async_pending = 0; |
1155 | gotasync = 0; |
|
|
1156 | |
1318 | |
1157 | for (i = asynccnt; i--; ) |
1319 | for (i = asynccnt; i--; ) |
1158 | if (asyncs [i]->sent) |
1320 | if (asyncs [i]->sent) |
1159 | { |
1321 | { |
1160 | asyncs [i]->sent = 0; |
1322 | asyncs [i]->sent = 0; |
… | |
… | |
1168 | |
1330 | |
1169 | static void |
1331 | static void |
1170 | ev_sighandler (int signum) |
1332 | ev_sighandler (int signum) |
1171 | { |
1333 | { |
1172 | #if EV_MULTIPLICITY |
1334 | #if EV_MULTIPLICITY |
1173 | struct ev_loop *loop = &default_loop_struct; |
1335 | EV_P = signals [signum - 1].loop; |
1174 | #endif |
1336 | #endif |
1175 | |
1337 | |
1176 | #if _WIN32 |
1338 | #ifdef _WIN32 |
1177 | signal (signum, ev_sighandler); |
1339 | signal (signum, ev_sighandler); |
1178 | #endif |
1340 | #endif |
1179 | |
1341 | |
1180 | signals [signum - 1].gotsig = 1; |
1342 | signals [signum - 1].pending = 1; |
1181 | evpipe_write (EV_A_ &gotsig); |
1343 | evpipe_write (EV_A_ &sig_pending); |
1182 | } |
1344 | } |
1183 | |
1345 | |
1184 | void noinline |
1346 | void noinline |
1185 | ev_feed_signal_event (EV_P_ int signum) |
1347 | ev_feed_signal_event (EV_P_ int signum) |
1186 | { |
1348 | { |
1187 | WL w; |
1349 | WL w; |
1188 | |
1350 | |
|
|
1351 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1352 | return; |
|
|
1353 | |
|
|
1354 | --signum; |
|
|
1355 | |
1189 | #if EV_MULTIPLICITY |
1356 | #if EV_MULTIPLICITY |
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1357 | /* it is permissible to try to feed a signal to the wrong loop */ |
1191 | #endif |
1358 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1192 | |
1359 | |
1193 | --signum; |
1360 | if (expect_false (signals [signum].loop != EV_A)) |
1194 | |
|
|
1195 | if (signum < 0 || signum >= signalmax) |
|
|
1196 | return; |
1361 | return; |
|
|
1362 | #endif |
1197 | |
1363 | |
1198 | signals [signum].gotsig = 0; |
1364 | signals [signum].pending = 0; |
1199 | |
1365 | |
1200 | for (w = signals [signum].head; w; w = w->next) |
1366 | for (w = signals [signum].head; w; w = w->next) |
1201 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1367 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1202 | } |
1368 | } |
1203 | |
1369 | |
|
|
1370 | #if EV_USE_SIGNALFD |
|
|
1371 | static void |
|
|
1372 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1373 | { |
|
|
1374 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1375 | |
|
|
1376 | for (;;) |
|
|
1377 | { |
|
|
1378 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1379 | |
|
|
1380 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1381 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1382 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1383 | |
|
|
1384 | if (res < (ssize_t)sizeof (si)) |
|
|
1385 | break; |
|
|
1386 | } |
|
|
1387 | } |
|
|
1388 | #endif |
|
|
1389 | |
|
|
1390 | #endif |
|
|
1391 | |
1204 | /*****************************************************************************/ |
1392 | /*****************************************************************************/ |
1205 | |
1393 | |
|
|
1394 | #if EV_CHILD_ENABLE |
1206 | static WL childs [EV_PID_HASHSIZE]; |
1395 | static WL childs [EV_PID_HASHSIZE]; |
1207 | |
|
|
1208 | #ifndef _WIN32 |
|
|
1209 | |
1396 | |
1210 | static ev_signal childev; |
1397 | static ev_signal childev; |
1211 | |
1398 | |
1212 | #ifndef WIFCONTINUED |
1399 | #ifndef WIFCONTINUED |
1213 | # define WIFCONTINUED(status) 0 |
1400 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1218 | child_reap (EV_P_ int chain, int pid, int status) |
1405 | child_reap (EV_P_ int chain, int pid, int status) |
1219 | { |
1406 | { |
1220 | ev_child *w; |
1407 | ev_child *w; |
1221 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1408 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1222 | |
1409 | |
1223 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1410 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1224 | { |
1411 | { |
1225 | if ((w->pid == pid || !w->pid) |
1412 | if ((w->pid == pid || !w->pid) |
1226 | && (!traced || (w->flags & 1))) |
1413 | && (!traced || (w->flags & 1))) |
1227 | { |
1414 | { |
1228 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1415 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1253 | /* make sure we are called again until all children have been reaped */ |
1440 | /* make sure we are called again until all children have been reaped */ |
1254 | /* we need to do it this way so that the callback gets called before we continue */ |
1441 | /* we need to do it this way so that the callback gets called before we continue */ |
1255 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1442 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1256 | |
1443 | |
1257 | child_reap (EV_A_ pid, pid, status); |
1444 | child_reap (EV_A_ pid, pid, status); |
1258 | if (EV_PID_HASHSIZE > 1) |
1445 | if ((EV_PID_HASHSIZE) > 1) |
1259 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1446 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1260 | } |
1447 | } |
1261 | |
1448 | |
1262 | #endif |
1449 | #endif |
1263 | |
1450 | |
… | |
… | |
1330 | #ifdef __APPLE__ |
1517 | #ifdef __APPLE__ |
1331 | /* only select works correctly on that "unix-certified" platform */ |
1518 | /* only select works correctly on that "unix-certified" platform */ |
1332 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1519 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1333 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1520 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1334 | #endif |
1521 | #endif |
|
|
1522 | #ifdef __FreeBSD__ |
|
|
1523 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1524 | #endif |
1335 | |
1525 | |
1336 | return flags; |
1526 | return flags; |
1337 | } |
1527 | } |
1338 | |
1528 | |
1339 | unsigned int |
1529 | unsigned int |
… | |
… | |
1352 | ev_backend (EV_P) |
1542 | ev_backend (EV_P) |
1353 | { |
1543 | { |
1354 | return backend; |
1544 | return backend; |
1355 | } |
1545 | } |
1356 | |
1546 | |
|
|
1547 | #if EV_FEATURE_API |
1357 | unsigned int |
1548 | unsigned int |
1358 | ev_loop_count (EV_P) |
1549 | ev_iteration (EV_P) |
1359 | { |
1550 | { |
1360 | return loop_count; |
1551 | return loop_count; |
1361 | } |
1552 | } |
1362 | |
1553 | |
|
|
1554 | unsigned int |
|
|
1555 | ev_depth (EV_P) |
|
|
1556 | { |
|
|
1557 | return loop_depth; |
|
|
1558 | } |
|
|
1559 | |
1363 | void |
1560 | void |
1364 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1561 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1365 | { |
1562 | { |
1366 | io_blocktime = interval; |
1563 | io_blocktime = interval; |
1367 | } |
1564 | } |
… | |
… | |
1369 | void |
1566 | void |
1370 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1567 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1371 | { |
1568 | { |
1372 | timeout_blocktime = interval; |
1569 | timeout_blocktime = interval; |
1373 | } |
1570 | } |
|
|
1571 | |
|
|
1572 | void |
|
|
1573 | ev_set_userdata (EV_P_ void *data) |
|
|
1574 | { |
|
|
1575 | userdata = data; |
|
|
1576 | } |
|
|
1577 | |
|
|
1578 | void * |
|
|
1579 | ev_userdata (EV_P) |
|
|
1580 | { |
|
|
1581 | return userdata; |
|
|
1582 | } |
|
|
1583 | |
|
|
1584 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1585 | { |
|
|
1586 | invoke_cb = invoke_pending_cb; |
|
|
1587 | } |
|
|
1588 | |
|
|
1589 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1590 | { |
|
|
1591 | release_cb = release; |
|
|
1592 | acquire_cb = acquire; |
|
|
1593 | } |
|
|
1594 | #endif |
1374 | |
1595 | |
1375 | /* initialise a loop structure, must be zero-initialised */ |
1596 | /* initialise a loop structure, must be zero-initialised */ |
1376 | static void noinline |
1597 | static void noinline |
1377 | loop_init (EV_P_ unsigned int flags) |
1598 | loop_init (EV_P_ unsigned int flags) |
1378 | { |
1599 | { |
… | |
… | |
1396 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1617 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1397 | have_monotonic = 1; |
1618 | have_monotonic = 1; |
1398 | } |
1619 | } |
1399 | #endif |
1620 | #endif |
1400 | |
1621 | |
|
|
1622 | /* pid check not overridable via env */ |
|
|
1623 | #ifndef _WIN32 |
|
|
1624 | if (flags & EVFLAG_FORKCHECK) |
|
|
1625 | curpid = getpid (); |
|
|
1626 | #endif |
|
|
1627 | |
|
|
1628 | if (!(flags & EVFLAG_NOENV) |
|
|
1629 | && !enable_secure () |
|
|
1630 | && getenv ("LIBEV_FLAGS")) |
|
|
1631 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1632 | |
1401 | ev_rt_now = ev_time (); |
1633 | ev_rt_now = ev_time (); |
1402 | mn_now = get_clock (); |
1634 | mn_now = get_clock (); |
1403 | now_floor = mn_now; |
1635 | now_floor = mn_now; |
1404 | rtmn_diff = ev_rt_now - mn_now; |
1636 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1637 | #if EV_FEATURE_API |
|
|
1638 | invoke_cb = ev_invoke_pending; |
|
|
1639 | #endif |
1405 | |
1640 | |
1406 | io_blocktime = 0.; |
1641 | io_blocktime = 0.; |
1407 | timeout_blocktime = 0.; |
1642 | timeout_blocktime = 0.; |
1408 | backend = 0; |
1643 | backend = 0; |
1409 | backend_fd = -1; |
1644 | backend_fd = -1; |
1410 | gotasync = 0; |
1645 | sig_pending = 0; |
|
|
1646 | #if EV_ASYNC_ENABLE |
|
|
1647 | async_pending = 0; |
|
|
1648 | #endif |
1411 | #if EV_USE_INOTIFY |
1649 | #if EV_USE_INOTIFY |
1412 | fs_fd = -2; |
1650 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1413 | #endif |
1651 | #endif |
1414 | |
1652 | #if EV_USE_SIGNALFD |
1415 | /* pid check not overridable via env */ |
1653 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1416 | #ifndef _WIN32 |
|
|
1417 | if (flags & EVFLAG_FORKCHECK) |
|
|
1418 | curpid = getpid (); |
|
|
1419 | #endif |
1654 | #endif |
1420 | |
|
|
1421 | if (!(flags & EVFLAG_NOENV) |
|
|
1422 | && !enable_secure () |
|
|
1423 | && getenv ("LIBEV_FLAGS")) |
|
|
1424 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1425 | |
1655 | |
1426 | if (!(flags & 0x0000ffffU)) |
1656 | if (!(flags & 0x0000ffffU)) |
1427 | flags |= ev_recommended_backends (); |
1657 | flags |= ev_recommended_backends (); |
1428 | |
1658 | |
1429 | #if EV_USE_PORT |
1659 | #if EV_USE_PORT |
… | |
… | |
1442 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1672 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1443 | #endif |
1673 | #endif |
1444 | |
1674 | |
1445 | ev_prepare_init (&pending_w, pendingcb); |
1675 | ev_prepare_init (&pending_w, pendingcb); |
1446 | |
1676 | |
|
|
1677 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1447 | ev_init (&pipe_w, pipecb); |
1678 | ev_init (&pipe_w, pipecb); |
1448 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1679 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1680 | #endif |
1449 | } |
1681 | } |
1450 | } |
1682 | } |
1451 | |
1683 | |
1452 | /* free up a loop structure */ |
1684 | /* free up a loop structure */ |
1453 | static void noinline |
1685 | static void noinline |
… | |
… | |
1455 | { |
1687 | { |
1456 | int i; |
1688 | int i; |
1457 | |
1689 | |
1458 | if (ev_is_active (&pipe_w)) |
1690 | if (ev_is_active (&pipe_w)) |
1459 | { |
1691 | { |
1460 | ev_ref (EV_A); /* signal watcher */ |
1692 | /*ev_ref (EV_A);*/ |
1461 | ev_io_stop (EV_A_ &pipe_w); |
1693 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1462 | |
1694 | |
1463 | #if EV_USE_EVENTFD |
1695 | #if EV_USE_EVENTFD |
1464 | if (evfd >= 0) |
1696 | if (evfd >= 0) |
1465 | close (evfd); |
1697 | close (evfd); |
1466 | #endif |
1698 | #endif |
1467 | |
1699 | |
1468 | if (evpipe [0] >= 0) |
1700 | if (evpipe [0] >= 0) |
1469 | { |
1701 | { |
1470 | close (evpipe [0]); |
1702 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1471 | close (evpipe [1]); |
1703 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1472 | } |
1704 | } |
1473 | } |
1705 | } |
|
|
1706 | |
|
|
1707 | #if EV_USE_SIGNALFD |
|
|
1708 | if (ev_is_active (&sigfd_w)) |
|
|
1709 | close (sigfd); |
|
|
1710 | #endif |
1474 | |
1711 | |
1475 | #if EV_USE_INOTIFY |
1712 | #if EV_USE_INOTIFY |
1476 | if (fs_fd >= 0) |
1713 | if (fs_fd >= 0) |
1477 | close (fs_fd); |
1714 | close (fs_fd); |
1478 | #endif |
1715 | #endif |
… | |
… | |
1502 | #if EV_IDLE_ENABLE |
1739 | #if EV_IDLE_ENABLE |
1503 | array_free (idle, [i]); |
1740 | array_free (idle, [i]); |
1504 | #endif |
1741 | #endif |
1505 | } |
1742 | } |
1506 | |
1743 | |
1507 | ev_free (anfds); anfdmax = 0; |
1744 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1508 | |
1745 | |
1509 | /* have to use the microsoft-never-gets-it-right macro */ |
1746 | /* have to use the microsoft-never-gets-it-right macro */ |
1510 | array_free (rfeed, EMPTY); |
1747 | array_free (rfeed, EMPTY); |
1511 | array_free (fdchange, EMPTY); |
1748 | array_free (fdchange, EMPTY); |
1512 | array_free (timer, EMPTY); |
1749 | array_free (timer, EMPTY); |
… | |
… | |
1547 | |
1784 | |
1548 | if (ev_is_active (&pipe_w)) |
1785 | if (ev_is_active (&pipe_w)) |
1549 | { |
1786 | { |
1550 | /* this "locks" the handlers against writing to the pipe */ |
1787 | /* this "locks" the handlers against writing to the pipe */ |
1551 | /* while we modify the fd vars */ |
1788 | /* while we modify the fd vars */ |
1552 | gotsig = 1; |
1789 | sig_pending = 1; |
1553 | #if EV_ASYNC_ENABLE |
1790 | #if EV_ASYNC_ENABLE |
1554 | gotasync = 1; |
1791 | async_pending = 1; |
1555 | #endif |
1792 | #endif |
1556 | |
1793 | |
1557 | ev_ref (EV_A); |
1794 | ev_ref (EV_A); |
1558 | ev_io_stop (EV_A_ &pipe_w); |
1795 | ev_io_stop (EV_A_ &pipe_w); |
1559 | |
1796 | |
… | |
… | |
1562 | close (evfd); |
1799 | close (evfd); |
1563 | #endif |
1800 | #endif |
1564 | |
1801 | |
1565 | if (evpipe [0] >= 0) |
1802 | if (evpipe [0] >= 0) |
1566 | { |
1803 | { |
1567 | close (evpipe [0]); |
1804 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1568 | close (evpipe [1]); |
1805 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1569 | } |
1806 | } |
1570 | |
1807 | |
|
|
1808 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1571 | evpipe_init (EV_A); |
1809 | evpipe_init (EV_A); |
1572 | /* now iterate over everything, in case we missed something */ |
1810 | /* now iterate over everything, in case we missed something */ |
1573 | pipecb (EV_A_ &pipe_w, EV_READ); |
1811 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1812 | #endif |
1574 | } |
1813 | } |
1575 | |
1814 | |
1576 | postfork = 0; |
1815 | postfork = 0; |
1577 | } |
1816 | } |
1578 | |
1817 | |
1579 | #if EV_MULTIPLICITY |
1818 | #if EV_MULTIPLICITY |
1580 | |
1819 | |
1581 | struct ev_loop * |
1820 | struct ev_loop * |
1582 | ev_loop_new (unsigned int flags) |
1821 | ev_loop_new (unsigned int flags) |
1583 | { |
1822 | { |
1584 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1823 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1585 | |
1824 | |
1586 | memset (loop, 0, sizeof (struct ev_loop)); |
1825 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1587 | |
|
|
1588 | loop_init (EV_A_ flags); |
1826 | loop_init (EV_A_ flags); |
1589 | |
1827 | |
1590 | if (ev_backend (EV_A)) |
1828 | if (ev_backend (EV_A)) |
1591 | return loop; |
1829 | return EV_A; |
1592 | |
1830 | |
1593 | return 0; |
1831 | return 0; |
1594 | } |
1832 | } |
1595 | |
1833 | |
1596 | void |
1834 | void |
… | |
… | |
1603 | void |
1841 | void |
1604 | ev_loop_fork (EV_P) |
1842 | ev_loop_fork (EV_P) |
1605 | { |
1843 | { |
1606 | postfork = 1; /* must be in line with ev_default_fork */ |
1844 | postfork = 1; /* must be in line with ev_default_fork */ |
1607 | } |
1845 | } |
|
|
1846 | #endif /* multiplicity */ |
1608 | |
1847 | |
1609 | #if EV_VERIFY |
1848 | #if EV_VERIFY |
1610 | static void noinline |
1849 | static void noinline |
1611 | verify_watcher (EV_P_ W w) |
1850 | verify_watcher (EV_P_ W w) |
1612 | { |
1851 | { |
… | |
… | |
1640 | verify_watcher (EV_A_ ws [cnt]); |
1879 | verify_watcher (EV_A_ ws [cnt]); |
1641 | } |
1880 | } |
1642 | } |
1881 | } |
1643 | #endif |
1882 | #endif |
1644 | |
1883 | |
|
|
1884 | #if EV_FEATURE_API |
1645 | void |
1885 | void |
1646 | ev_loop_verify (EV_P) |
1886 | ev_verify (EV_P) |
1647 | { |
1887 | { |
1648 | #if EV_VERIFY |
1888 | #if EV_VERIFY |
1649 | int i; |
1889 | int i; |
1650 | WL w; |
1890 | WL w; |
1651 | |
1891 | |
… | |
… | |
1690 | #if EV_ASYNC_ENABLE |
1930 | #if EV_ASYNC_ENABLE |
1691 | assert (asyncmax >= asynccnt); |
1931 | assert (asyncmax >= asynccnt); |
1692 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1932 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1693 | #endif |
1933 | #endif |
1694 | |
1934 | |
|
|
1935 | #if EV_PREPARE_ENABLE |
1695 | assert (preparemax >= preparecnt); |
1936 | assert (preparemax >= preparecnt); |
1696 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1937 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1938 | #endif |
1697 | |
1939 | |
|
|
1940 | #if EV_CHECK_ENABLE |
1698 | assert (checkmax >= checkcnt); |
1941 | assert (checkmax >= checkcnt); |
1699 | array_verify (EV_A_ (W *)checks, checkcnt); |
1942 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1943 | #endif |
1700 | |
1944 | |
1701 | # if 0 |
1945 | # if 0 |
|
|
1946 | #if EV_CHILD_ENABLE |
1702 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1947 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1703 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1948 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1949 | #endif |
1704 | # endif |
1950 | # endif |
1705 | #endif |
1951 | #endif |
1706 | } |
1952 | } |
1707 | |
1953 | #endif |
1708 | #endif /* multiplicity */ |
|
|
1709 | |
1954 | |
1710 | #if EV_MULTIPLICITY |
1955 | #if EV_MULTIPLICITY |
1711 | struct ev_loop * |
1956 | struct ev_loop * |
1712 | ev_default_loop_init (unsigned int flags) |
1957 | ev_default_loop_init (unsigned int flags) |
1713 | #else |
1958 | #else |
… | |
… | |
1716 | #endif |
1961 | #endif |
1717 | { |
1962 | { |
1718 | if (!ev_default_loop_ptr) |
1963 | if (!ev_default_loop_ptr) |
1719 | { |
1964 | { |
1720 | #if EV_MULTIPLICITY |
1965 | #if EV_MULTIPLICITY |
1721 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1966 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1722 | #else |
1967 | #else |
1723 | ev_default_loop_ptr = 1; |
1968 | ev_default_loop_ptr = 1; |
1724 | #endif |
1969 | #endif |
1725 | |
1970 | |
1726 | loop_init (EV_A_ flags); |
1971 | loop_init (EV_A_ flags); |
1727 | |
1972 | |
1728 | if (ev_backend (EV_A)) |
1973 | if (ev_backend (EV_A)) |
1729 | { |
1974 | { |
1730 | #ifndef _WIN32 |
1975 | #if EV_CHILD_ENABLE |
1731 | ev_signal_init (&childev, childcb, SIGCHLD); |
1976 | ev_signal_init (&childev, childcb, SIGCHLD); |
1732 | ev_set_priority (&childev, EV_MAXPRI); |
1977 | ev_set_priority (&childev, EV_MAXPRI); |
1733 | ev_signal_start (EV_A_ &childev); |
1978 | ev_signal_start (EV_A_ &childev); |
1734 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1979 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1735 | #endif |
1980 | #endif |
… | |
… | |
1743 | |
1988 | |
1744 | void |
1989 | void |
1745 | ev_default_destroy (void) |
1990 | ev_default_destroy (void) |
1746 | { |
1991 | { |
1747 | #if EV_MULTIPLICITY |
1992 | #if EV_MULTIPLICITY |
1748 | struct ev_loop *loop = ev_default_loop_ptr; |
1993 | EV_P = ev_default_loop_ptr; |
1749 | #endif |
1994 | #endif |
1750 | |
1995 | |
1751 | ev_default_loop_ptr = 0; |
1996 | ev_default_loop_ptr = 0; |
1752 | |
1997 | |
1753 | #ifndef _WIN32 |
1998 | #if EV_CHILD_ENABLE |
1754 | ev_ref (EV_A); /* child watcher */ |
1999 | ev_ref (EV_A); /* child watcher */ |
1755 | ev_signal_stop (EV_A_ &childev); |
2000 | ev_signal_stop (EV_A_ &childev); |
1756 | #endif |
2001 | #endif |
1757 | |
2002 | |
1758 | loop_destroy (EV_A); |
2003 | loop_destroy (EV_A); |
… | |
… | |
1760 | |
2005 | |
1761 | void |
2006 | void |
1762 | ev_default_fork (void) |
2007 | ev_default_fork (void) |
1763 | { |
2008 | { |
1764 | #if EV_MULTIPLICITY |
2009 | #if EV_MULTIPLICITY |
1765 | struct ev_loop *loop = ev_default_loop_ptr; |
2010 | EV_P = ev_default_loop_ptr; |
1766 | #endif |
2011 | #endif |
1767 | |
2012 | |
1768 | postfork = 1; /* must be in line with ev_loop_fork */ |
2013 | postfork = 1; /* must be in line with ev_loop_fork */ |
1769 | } |
2014 | } |
1770 | |
2015 | |
… | |
… | |
1774 | ev_invoke (EV_P_ void *w, int revents) |
2019 | ev_invoke (EV_P_ void *w, int revents) |
1775 | { |
2020 | { |
1776 | EV_CB_INVOKE ((W)w, revents); |
2021 | EV_CB_INVOKE ((W)w, revents); |
1777 | } |
2022 | } |
1778 | |
2023 | |
1779 | inline_speed void |
2024 | unsigned int |
1780 | call_pending (EV_P) |
2025 | ev_pending_count (EV_P) |
|
|
2026 | { |
|
|
2027 | int pri; |
|
|
2028 | unsigned int count = 0; |
|
|
2029 | |
|
|
2030 | for (pri = NUMPRI; pri--; ) |
|
|
2031 | count += pendingcnt [pri]; |
|
|
2032 | |
|
|
2033 | return count; |
|
|
2034 | } |
|
|
2035 | |
|
|
2036 | void noinline |
|
|
2037 | ev_invoke_pending (EV_P) |
1781 | { |
2038 | { |
1782 | int pri; |
2039 | int pri; |
1783 | |
2040 | |
1784 | for (pri = NUMPRI; pri--; ) |
2041 | for (pri = NUMPRI; pri--; ) |
1785 | while (pendingcnt [pri]) |
2042 | while (pendingcnt [pri]) |
… | |
… | |
1852 | EV_FREQUENT_CHECK; |
2109 | EV_FREQUENT_CHECK; |
1853 | feed_reverse (EV_A_ (W)w); |
2110 | feed_reverse (EV_A_ (W)w); |
1854 | } |
2111 | } |
1855 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2112 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1856 | |
2113 | |
1857 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2114 | feed_reverse_done (EV_A_ EV_TIMER); |
1858 | } |
2115 | } |
1859 | } |
2116 | } |
1860 | |
2117 | |
1861 | #if EV_PERIODIC_ENABLE |
2118 | #if EV_PERIODIC_ENABLE |
1862 | /* make periodics pending */ |
2119 | /* make periodics pending */ |
… | |
… | |
1915 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2172 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1916 | } |
2173 | } |
1917 | } |
2174 | } |
1918 | |
2175 | |
1919 | /* simply recalculate all periodics */ |
2176 | /* simply recalculate all periodics */ |
1920 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2177 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1921 | static void noinline |
2178 | static void noinline |
1922 | periodics_reschedule (EV_P) |
2179 | periodics_reschedule (EV_P) |
1923 | { |
2180 | { |
1924 | int i; |
2181 | int i; |
1925 | |
2182 | |
… | |
… | |
1953 | ANHE_at_cache (*he); |
2210 | ANHE_at_cache (*he); |
1954 | } |
2211 | } |
1955 | } |
2212 | } |
1956 | |
2213 | |
1957 | /* fetch new monotonic and realtime times from the kernel */ |
2214 | /* fetch new monotonic and realtime times from the kernel */ |
1958 | /* also detetc if there was a timejump, and act accordingly */ |
2215 | /* also detect if there was a timejump, and act accordingly */ |
1959 | inline_speed void |
2216 | inline_speed void |
1960 | time_update (EV_P_ ev_tstamp max_block) |
2217 | time_update (EV_P_ ev_tstamp max_block) |
1961 | { |
2218 | { |
1962 | #if EV_USE_MONOTONIC |
2219 | #if EV_USE_MONOTONIC |
1963 | if (expect_true (have_monotonic)) |
2220 | if (expect_true (have_monotonic)) |
… | |
… | |
2020 | |
2277 | |
2021 | mn_now = ev_rt_now; |
2278 | mn_now = ev_rt_now; |
2022 | } |
2279 | } |
2023 | } |
2280 | } |
2024 | |
2281 | |
2025 | static int loop_done; |
|
|
2026 | |
|
|
2027 | void |
2282 | void |
2028 | ev_loop (EV_P_ int flags) |
2283 | ev_run (EV_P_ int flags) |
2029 | { |
2284 | { |
|
|
2285 | #if EV_FEATURE_API |
|
|
2286 | ++loop_depth; |
|
|
2287 | #endif |
|
|
2288 | |
|
|
2289 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2290 | |
2030 | loop_done = EVUNLOOP_CANCEL; |
2291 | loop_done = EVBREAK_CANCEL; |
2031 | |
2292 | |
2032 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2293 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2033 | |
2294 | |
2034 | do |
2295 | do |
2035 | { |
2296 | { |
2036 | #if EV_VERIFY >= 2 |
2297 | #if EV_VERIFY >= 2 |
2037 | ev_loop_verify (EV_A); |
2298 | ev_verify (EV_A); |
2038 | #endif |
2299 | #endif |
2039 | |
2300 | |
2040 | #ifndef _WIN32 |
2301 | #ifndef _WIN32 |
2041 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2302 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2042 | if (expect_false (getpid () != curpid)) |
2303 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2050 | /* we might have forked, so queue fork handlers */ |
2311 | /* we might have forked, so queue fork handlers */ |
2051 | if (expect_false (postfork)) |
2312 | if (expect_false (postfork)) |
2052 | if (forkcnt) |
2313 | if (forkcnt) |
2053 | { |
2314 | { |
2054 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2315 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2055 | call_pending (EV_A); |
2316 | EV_INVOKE_PENDING; |
2056 | } |
2317 | } |
2057 | #endif |
2318 | #endif |
2058 | |
2319 | |
|
|
2320 | #if EV_PREPARE_ENABLE |
2059 | /* queue prepare watchers (and execute them) */ |
2321 | /* queue prepare watchers (and execute them) */ |
2060 | if (expect_false (preparecnt)) |
2322 | if (expect_false (preparecnt)) |
2061 | { |
2323 | { |
2062 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2324 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2063 | call_pending (EV_A); |
2325 | EV_INVOKE_PENDING; |
2064 | } |
2326 | } |
|
|
2327 | #endif |
|
|
2328 | |
|
|
2329 | if (expect_false (loop_done)) |
|
|
2330 | break; |
2065 | |
2331 | |
2066 | /* we might have forked, so reify kernel state if necessary */ |
2332 | /* we might have forked, so reify kernel state if necessary */ |
2067 | if (expect_false (postfork)) |
2333 | if (expect_false (postfork)) |
2068 | loop_fork (EV_A); |
2334 | loop_fork (EV_A); |
2069 | |
2335 | |
… | |
… | |
2073 | /* calculate blocking time */ |
2339 | /* calculate blocking time */ |
2074 | { |
2340 | { |
2075 | ev_tstamp waittime = 0.; |
2341 | ev_tstamp waittime = 0.; |
2076 | ev_tstamp sleeptime = 0.; |
2342 | ev_tstamp sleeptime = 0.; |
2077 | |
2343 | |
|
|
2344 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2345 | ev_tstamp prev_mn_now = mn_now; |
|
|
2346 | |
|
|
2347 | /* update time to cancel out callback processing overhead */ |
|
|
2348 | time_update (EV_A_ 1e100); |
|
|
2349 | |
2078 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2350 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2079 | { |
2351 | { |
2080 | /* update time to cancel out callback processing overhead */ |
|
|
2081 | time_update (EV_A_ 1e100); |
|
|
2082 | |
|
|
2083 | waittime = MAX_BLOCKTIME; |
2352 | waittime = MAX_BLOCKTIME; |
2084 | |
2353 | |
2085 | if (timercnt) |
2354 | if (timercnt) |
2086 | { |
2355 | { |
2087 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2356 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2094 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2363 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2095 | if (waittime > to) waittime = to; |
2364 | if (waittime > to) waittime = to; |
2096 | } |
2365 | } |
2097 | #endif |
2366 | #endif |
2098 | |
2367 | |
|
|
2368 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2099 | if (expect_false (waittime < timeout_blocktime)) |
2369 | if (expect_false (waittime < timeout_blocktime)) |
2100 | waittime = timeout_blocktime; |
2370 | waittime = timeout_blocktime; |
2101 | |
2371 | |
2102 | sleeptime = waittime - backend_fudge; |
2372 | /* extra check because io_blocktime is commonly 0 */ |
2103 | |
|
|
2104 | if (expect_true (sleeptime > io_blocktime)) |
2373 | if (expect_false (io_blocktime)) |
2105 | sleeptime = io_blocktime; |
|
|
2106 | |
|
|
2107 | if (sleeptime) |
|
|
2108 | { |
2374 | { |
|
|
2375 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2376 | |
|
|
2377 | if (sleeptime > waittime - backend_fudge) |
|
|
2378 | sleeptime = waittime - backend_fudge; |
|
|
2379 | |
|
|
2380 | if (expect_true (sleeptime > 0.)) |
|
|
2381 | { |
2109 | ev_sleep (sleeptime); |
2382 | ev_sleep (sleeptime); |
2110 | waittime -= sleeptime; |
2383 | waittime -= sleeptime; |
|
|
2384 | } |
2111 | } |
2385 | } |
2112 | } |
2386 | } |
2113 | |
2387 | |
|
|
2388 | #if EV_FEATURE_API |
2114 | ++loop_count; |
2389 | ++loop_count; |
|
|
2390 | #endif |
|
|
2391 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2115 | backend_poll (EV_A_ waittime); |
2392 | backend_poll (EV_A_ waittime); |
|
|
2393 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2116 | |
2394 | |
2117 | /* update ev_rt_now, do magic */ |
2395 | /* update ev_rt_now, do magic */ |
2118 | time_update (EV_A_ waittime + sleeptime); |
2396 | time_update (EV_A_ waittime + sleeptime); |
2119 | } |
2397 | } |
2120 | |
2398 | |
… | |
… | |
2127 | #if EV_IDLE_ENABLE |
2405 | #if EV_IDLE_ENABLE |
2128 | /* queue idle watchers unless other events are pending */ |
2406 | /* queue idle watchers unless other events are pending */ |
2129 | idle_reify (EV_A); |
2407 | idle_reify (EV_A); |
2130 | #endif |
2408 | #endif |
2131 | |
2409 | |
|
|
2410 | #if EV_CHECK_ENABLE |
2132 | /* queue check watchers, to be executed first */ |
2411 | /* queue check watchers, to be executed first */ |
2133 | if (expect_false (checkcnt)) |
2412 | if (expect_false (checkcnt)) |
2134 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2413 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2414 | #endif |
2135 | |
2415 | |
2136 | call_pending (EV_A); |
2416 | EV_INVOKE_PENDING; |
2137 | } |
2417 | } |
2138 | while (expect_true ( |
2418 | while (expect_true ( |
2139 | activecnt |
2419 | activecnt |
2140 | && !loop_done |
2420 | && !loop_done |
2141 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2421 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2142 | )); |
2422 | )); |
2143 | |
2423 | |
2144 | if (loop_done == EVUNLOOP_ONE) |
2424 | if (loop_done == EVBREAK_ONE) |
2145 | loop_done = EVUNLOOP_CANCEL; |
2425 | loop_done = EVBREAK_CANCEL; |
2146 | } |
|
|
2147 | |
2426 | |
|
|
2427 | #if EV_FEATURE_API |
|
|
2428 | --loop_depth; |
|
|
2429 | #endif |
|
|
2430 | } |
|
|
2431 | |
2148 | void |
2432 | void |
2149 | ev_unloop (EV_P_ int how) |
2433 | ev_break (EV_P_ int how) |
2150 | { |
2434 | { |
2151 | loop_done = how; |
2435 | loop_done = how; |
2152 | } |
2436 | } |
2153 | |
2437 | |
2154 | void |
2438 | void |
… | |
… | |
2201 | inline_size void |
2485 | inline_size void |
2202 | wlist_del (WL *head, WL elem) |
2486 | wlist_del (WL *head, WL elem) |
2203 | { |
2487 | { |
2204 | while (*head) |
2488 | while (*head) |
2205 | { |
2489 | { |
2206 | if (*head == elem) |
2490 | if (expect_true (*head == elem)) |
2207 | { |
2491 | { |
2208 | *head = elem->next; |
2492 | *head = elem->next; |
2209 | return; |
2493 | break; |
2210 | } |
2494 | } |
2211 | |
2495 | |
2212 | head = &(*head)->next; |
2496 | head = &(*head)->next; |
2213 | } |
2497 | } |
2214 | } |
2498 | } |
… | |
… | |
2242 | } |
2526 | } |
2243 | |
2527 | |
2244 | inline_size void |
2528 | inline_size void |
2245 | pri_adjust (EV_P_ W w) |
2529 | pri_adjust (EV_P_ W w) |
2246 | { |
2530 | { |
2247 | int pri = w->priority; |
2531 | int pri = ev_priority (w); |
2248 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2532 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2249 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2533 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2250 | w->priority = pri; |
2534 | ev_set_priority (w, pri); |
2251 | } |
2535 | } |
2252 | |
2536 | |
2253 | inline_speed void |
2537 | inline_speed void |
2254 | ev_start (EV_P_ W w, int active) |
2538 | ev_start (EV_P_ W w, int active) |
2255 | { |
2539 | { |
… | |
… | |
2274 | |
2558 | |
2275 | if (expect_false (ev_is_active (w))) |
2559 | if (expect_false (ev_is_active (w))) |
2276 | return; |
2560 | return; |
2277 | |
2561 | |
2278 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2562 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2279 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2563 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2280 | |
2564 | |
2281 | EV_FREQUENT_CHECK; |
2565 | EV_FREQUENT_CHECK; |
2282 | |
2566 | |
2283 | ev_start (EV_A_ (W)w, 1); |
2567 | ev_start (EV_A_ (W)w, 1); |
2284 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2568 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2285 | wlist_add (&anfds[fd].head, (WL)w); |
2569 | wlist_add (&anfds[fd].head, (WL)w); |
2286 | |
2570 | |
2287 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2571 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2288 | w->events &= ~EV__IOFDSET; |
2572 | w->events &= ~EV__IOFDSET; |
2289 | |
2573 | |
2290 | EV_FREQUENT_CHECK; |
2574 | EV_FREQUENT_CHECK; |
2291 | } |
2575 | } |
2292 | |
2576 | |
… | |
… | |
2302 | EV_FREQUENT_CHECK; |
2586 | EV_FREQUENT_CHECK; |
2303 | |
2587 | |
2304 | wlist_del (&anfds[w->fd].head, (WL)w); |
2588 | wlist_del (&anfds[w->fd].head, (WL)w); |
2305 | ev_stop (EV_A_ (W)w); |
2589 | ev_stop (EV_A_ (W)w); |
2306 | |
2590 | |
2307 | fd_change (EV_A_ w->fd, 1); |
2591 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2308 | |
2592 | |
2309 | EV_FREQUENT_CHECK; |
2593 | EV_FREQUENT_CHECK; |
2310 | } |
2594 | } |
2311 | |
2595 | |
2312 | void noinline |
2596 | void noinline |
… | |
… | |
2354 | timers [active] = timers [timercnt + HEAP0]; |
2638 | timers [active] = timers [timercnt + HEAP0]; |
2355 | adjustheap (timers, timercnt, active); |
2639 | adjustheap (timers, timercnt, active); |
2356 | } |
2640 | } |
2357 | } |
2641 | } |
2358 | |
2642 | |
2359 | EV_FREQUENT_CHECK; |
|
|
2360 | |
|
|
2361 | ev_at (w) -= mn_now; |
2643 | ev_at (w) -= mn_now; |
2362 | |
2644 | |
2363 | ev_stop (EV_A_ (W)w); |
2645 | ev_stop (EV_A_ (W)w); |
|
|
2646 | |
|
|
2647 | EV_FREQUENT_CHECK; |
2364 | } |
2648 | } |
2365 | |
2649 | |
2366 | void noinline |
2650 | void noinline |
2367 | ev_timer_again (EV_P_ ev_timer *w) |
2651 | ev_timer_again (EV_P_ ev_timer *w) |
2368 | { |
2652 | { |
… | |
… | |
2386 | } |
2670 | } |
2387 | |
2671 | |
2388 | EV_FREQUENT_CHECK; |
2672 | EV_FREQUENT_CHECK; |
2389 | } |
2673 | } |
2390 | |
2674 | |
|
|
2675 | ev_tstamp |
|
|
2676 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2677 | { |
|
|
2678 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2679 | } |
|
|
2680 | |
2391 | #if EV_PERIODIC_ENABLE |
2681 | #if EV_PERIODIC_ENABLE |
2392 | void noinline |
2682 | void noinline |
2393 | ev_periodic_start (EV_P_ ev_periodic *w) |
2683 | ev_periodic_start (EV_P_ ev_periodic *w) |
2394 | { |
2684 | { |
2395 | if (expect_false (ev_is_active (w))) |
2685 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2441 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2731 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2442 | adjustheap (periodics, periodiccnt, active); |
2732 | adjustheap (periodics, periodiccnt, active); |
2443 | } |
2733 | } |
2444 | } |
2734 | } |
2445 | |
2735 | |
2446 | EV_FREQUENT_CHECK; |
|
|
2447 | |
|
|
2448 | ev_stop (EV_A_ (W)w); |
2736 | ev_stop (EV_A_ (W)w); |
|
|
2737 | |
|
|
2738 | EV_FREQUENT_CHECK; |
2449 | } |
2739 | } |
2450 | |
2740 | |
2451 | void noinline |
2741 | void noinline |
2452 | ev_periodic_again (EV_P_ ev_periodic *w) |
2742 | ev_periodic_again (EV_P_ ev_periodic *w) |
2453 | { |
2743 | { |
… | |
… | |
2459 | |
2749 | |
2460 | #ifndef SA_RESTART |
2750 | #ifndef SA_RESTART |
2461 | # define SA_RESTART 0 |
2751 | # define SA_RESTART 0 |
2462 | #endif |
2752 | #endif |
2463 | |
2753 | |
|
|
2754 | #if EV_SIGNAL_ENABLE |
|
|
2755 | |
2464 | void noinline |
2756 | void noinline |
2465 | ev_signal_start (EV_P_ ev_signal *w) |
2757 | ev_signal_start (EV_P_ ev_signal *w) |
2466 | { |
2758 | { |
2467 | #if EV_MULTIPLICITY |
|
|
2468 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2469 | #endif |
|
|
2470 | if (expect_false (ev_is_active (w))) |
2759 | if (expect_false (ev_is_active (w))) |
2471 | return; |
2760 | return; |
2472 | |
2761 | |
2473 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2762 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2474 | |
2763 | |
2475 | evpipe_init (EV_A); |
2764 | #if EV_MULTIPLICITY |
|
|
2765 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2766 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2476 | |
2767 | |
2477 | EV_FREQUENT_CHECK; |
2768 | signals [w->signum - 1].loop = EV_A; |
|
|
2769 | #endif |
2478 | |
2770 | |
|
|
2771 | EV_FREQUENT_CHECK; |
|
|
2772 | |
|
|
2773 | #if EV_USE_SIGNALFD |
|
|
2774 | if (sigfd == -2) |
2479 | { |
2775 | { |
2480 | #ifndef _WIN32 |
2776 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2481 | sigset_t full, prev; |
2777 | if (sigfd < 0 && errno == EINVAL) |
2482 | sigfillset (&full); |
2778 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2483 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2484 | #endif |
|
|
2485 | |
2779 | |
2486 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2780 | if (sigfd >= 0) |
|
|
2781 | { |
|
|
2782 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2487 | |
2783 | |
2488 | #ifndef _WIN32 |
2784 | sigemptyset (&sigfd_set); |
2489 | sigprocmask (SIG_SETMASK, &prev, 0); |
2785 | |
2490 | #endif |
2786 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2787 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2788 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2789 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2790 | } |
2491 | } |
2791 | } |
|
|
2792 | |
|
|
2793 | if (sigfd >= 0) |
|
|
2794 | { |
|
|
2795 | /* TODO: check .head */ |
|
|
2796 | sigaddset (&sigfd_set, w->signum); |
|
|
2797 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2798 | |
|
|
2799 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2800 | } |
|
|
2801 | #endif |
2492 | |
2802 | |
2493 | ev_start (EV_A_ (W)w, 1); |
2803 | ev_start (EV_A_ (W)w, 1); |
2494 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2804 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2495 | |
2805 | |
2496 | if (!((WL)w)->next) |
2806 | if (!((WL)w)->next) |
|
|
2807 | # if EV_USE_SIGNALFD |
|
|
2808 | if (sigfd < 0) /*TODO*/ |
|
|
2809 | # endif |
2497 | { |
2810 | { |
2498 | #if _WIN32 |
2811 | # ifdef _WIN32 |
|
|
2812 | evpipe_init (EV_A); |
|
|
2813 | |
2499 | signal (w->signum, ev_sighandler); |
2814 | signal (w->signum, ev_sighandler); |
2500 | #else |
2815 | # else |
2501 | struct sigaction sa; |
2816 | struct sigaction sa; |
|
|
2817 | |
|
|
2818 | evpipe_init (EV_A); |
|
|
2819 | |
2502 | sa.sa_handler = ev_sighandler; |
2820 | sa.sa_handler = ev_sighandler; |
2503 | sigfillset (&sa.sa_mask); |
2821 | sigfillset (&sa.sa_mask); |
2504 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2822 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2505 | sigaction (w->signum, &sa, 0); |
2823 | sigaction (w->signum, &sa, 0); |
|
|
2824 | |
|
|
2825 | sigemptyset (&sa.sa_mask); |
|
|
2826 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2827 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2506 | #endif |
2828 | #endif |
2507 | } |
2829 | } |
2508 | |
2830 | |
2509 | EV_FREQUENT_CHECK; |
2831 | EV_FREQUENT_CHECK; |
2510 | } |
2832 | } |
2511 | |
2833 | |
2512 | void noinline |
2834 | void noinline |
… | |
… | |
2520 | |
2842 | |
2521 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2843 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2522 | ev_stop (EV_A_ (W)w); |
2844 | ev_stop (EV_A_ (W)w); |
2523 | |
2845 | |
2524 | if (!signals [w->signum - 1].head) |
2846 | if (!signals [w->signum - 1].head) |
|
|
2847 | { |
|
|
2848 | #if EV_MULTIPLICITY |
|
|
2849 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2850 | #endif |
|
|
2851 | #if EV_USE_SIGNALFD |
|
|
2852 | if (sigfd >= 0) |
|
|
2853 | { |
|
|
2854 | sigset_t ss; |
|
|
2855 | |
|
|
2856 | sigemptyset (&ss); |
|
|
2857 | sigaddset (&ss, w->signum); |
|
|
2858 | sigdelset (&sigfd_set, w->signum); |
|
|
2859 | |
|
|
2860 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2861 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2862 | } |
|
|
2863 | else |
|
|
2864 | #endif |
2525 | signal (w->signum, SIG_DFL); |
2865 | signal (w->signum, SIG_DFL); |
|
|
2866 | } |
2526 | |
2867 | |
2527 | EV_FREQUENT_CHECK; |
2868 | EV_FREQUENT_CHECK; |
2528 | } |
2869 | } |
|
|
2870 | |
|
|
2871 | #endif |
|
|
2872 | |
|
|
2873 | #if EV_CHILD_ENABLE |
2529 | |
2874 | |
2530 | void |
2875 | void |
2531 | ev_child_start (EV_P_ ev_child *w) |
2876 | ev_child_start (EV_P_ ev_child *w) |
2532 | { |
2877 | { |
2533 | #if EV_MULTIPLICITY |
2878 | #if EV_MULTIPLICITY |
… | |
… | |
2537 | return; |
2882 | return; |
2538 | |
2883 | |
2539 | EV_FREQUENT_CHECK; |
2884 | EV_FREQUENT_CHECK; |
2540 | |
2885 | |
2541 | ev_start (EV_A_ (W)w, 1); |
2886 | ev_start (EV_A_ (W)w, 1); |
2542 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2887 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2543 | |
2888 | |
2544 | EV_FREQUENT_CHECK; |
2889 | EV_FREQUENT_CHECK; |
2545 | } |
2890 | } |
2546 | |
2891 | |
2547 | void |
2892 | void |
… | |
… | |
2551 | if (expect_false (!ev_is_active (w))) |
2896 | if (expect_false (!ev_is_active (w))) |
2552 | return; |
2897 | return; |
2553 | |
2898 | |
2554 | EV_FREQUENT_CHECK; |
2899 | EV_FREQUENT_CHECK; |
2555 | |
2900 | |
2556 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2901 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2557 | ev_stop (EV_A_ (W)w); |
2902 | ev_stop (EV_A_ (W)w); |
2558 | |
2903 | |
2559 | EV_FREQUENT_CHECK; |
2904 | EV_FREQUENT_CHECK; |
2560 | } |
2905 | } |
|
|
2906 | |
|
|
2907 | #endif |
2561 | |
2908 | |
2562 | #if EV_STAT_ENABLE |
2909 | #if EV_STAT_ENABLE |
2563 | |
2910 | |
2564 | # ifdef _WIN32 |
2911 | # ifdef _WIN32 |
2565 | # undef lstat |
2912 | # undef lstat |
… | |
… | |
2571 | #define MIN_STAT_INTERVAL 0.1074891 |
2918 | #define MIN_STAT_INTERVAL 0.1074891 |
2572 | |
2919 | |
2573 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2920 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2574 | |
2921 | |
2575 | #if EV_USE_INOTIFY |
2922 | #if EV_USE_INOTIFY |
2576 | # define EV_INOTIFY_BUFSIZE 8192 |
2923 | |
|
|
2924 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2925 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2577 | |
2926 | |
2578 | static void noinline |
2927 | static void noinline |
2579 | infy_add (EV_P_ ev_stat *w) |
2928 | infy_add (EV_P_ ev_stat *w) |
2580 | { |
2929 | { |
2581 | 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); |
2930 | 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); |
2582 | |
2931 | |
2583 | if (w->wd < 0) |
2932 | if (w->wd >= 0) |
|
|
2933 | { |
|
|
2934 | struct statfs sfs; |
|
|
2935 | |
|
|
2936 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2937 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2938 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2939 | |
|
|
2940 | if (!fs_2625) |
|
|
2941 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2942 | else if (!statfs (w->path, &sfs) |
|
|
2943 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2944 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2945 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2946 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2947 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2948 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2949 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2950 | else |
|
|
2951 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2584 | { |
2952 | } |
|
|
2953 | else |
|
|
2954 | { |
|
|
2955 | /* can't use inotify, continue to stat */ |
2585 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2956 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2586 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2587 | |
2957 | |
2588 | /* monitor some parent directory for speedup hints */ |
2958 | /* if path is not there, monitor some parent directory for speedup hints */ |
2589 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2959 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2590 | /* but an efficiency issue only */ |
2960 | /* but an efficiency issue only */ |
2591 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2961 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2592 | { |
2962 | { |
2593 | char path [4096]; |
2963 | char path [4096]; |
… | |
… | |
2609 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2979 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2610 | } |
2980 | } |
2611 | } |
2981 | } |
2612 | |
2982 | |
2613 | if (w->wd >= 0) |
2983 | if (w->wd >= 0) |
2614 | { |
|
|
2615 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2984 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2616 | |
2985 | |
2617 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2986 | /* now re-arm timer, if required */ |
2618 | /* unless the filesystem it known to be local, we therefore still poll */ |
2987 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2619 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2620 | struct statfs sfs; |
|
|
2621 | |
|
|
2622 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2623 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2624 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2625 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2626 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2627 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2628 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2629 | return; |
|
|
2630 | |
|
|
2631 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2632 | ev_timer_again (EV_A_ &w->timer); |
2988 | ev_timer_again (EV_A_ &w->timer); |
2633 | } |
2989 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2634 | } |
2990 | } |
2635 | |
2991 | |
2636 | static void noinline |
2992 | static void noinline |
2637 | infy_del (EV_P_ ev_stat *w) |
2993 | infy_del (EV_P_ ev_stat *w) |
2638 | { |
2994 | { |
… | |
… | |
2641 | |
2997 | |
2642 | if (wd < 0) |
2998 | if (wd < 0) |
2643 | return; |
2999 | return; |
2644 | |
3000 | |
2645 | w->wd = -2; |
3001 | w->wd = -2; |
2646 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3002 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2647 | wlist_del (&fs_hash [slot].head, (WL)w); |
3003 | wlist_del (&fs_hash [slot].head, (WL)w); |
2648 | |
3004 | |
2649 | /* remove this watcher, if others are watching it, they will rearm */ |
3005 | /* remove this watcher, if others are watching it, they will rearm */ |
2650 | inotify_rm_watch (fs_fd, wd); |
3006 | inotify_rm_watch (fs_fd, wd); |
2651 | } |
3007 | } |
… | |
… | |
2653 | static void noinline |
3009 | static void noinline |
2654 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3010 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2655 | { |
3011 | { |
2656 | if (slot < 0) |
3012 | if (slot < 0) |
2657 | /* overflow, need to check for all hash slots */ |
3013 | /* overflow, need to check for all hash slots */ |
2658 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3014 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2659 | infy_wd (EV_A_ slot, wd, ev); |
3015 | infy_wd (EV_A_ slot, wd, ev); |
2660 | else |
3016 | else |
2661 | { |
3017 | { |
2662 | WL w_; |
3018 | WL w_; |
2663 | |
3019 | |
2664 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3020 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2665 | { |
3021 | { |
2666 | ev_stat *w = (ev_stat *)w_; |
3022 | ev_stat *w = (ev_stat *)w_; |
2667 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3023 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2668 | |
3024 | |
2669 | if (w->wd == wd || wd == -1) |
3025 | if (w->wd == wd || wd == -1) |
2670 | { |
3026 | { |
2671 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3027 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2672 | { |
3028 | { |
2673 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3029 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2674 | w->wd = -1; |
3030 | w->wd = -1; |
2675 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3031 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2676 | } |
3032 | } |
2677 | |
3033 | |
2678 | stat_timer_cb (EV_A_ &w->timer, 0); |
3034 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2683 | |
3039 | |
2684 | static void |
3040 | static void |
2685 | infy_cb (EV_P_ ev_io *w, int revents) |
3041 | infy_cb (EV_P_ ev_io *w, int revents) |
2686 | { |
3042 | { |
2687 | char buf [EV_INOTIFY_BUFSIZE]; |
3043 | char buf [EV_INOTIFY_BUFSIZE]; |
2688 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2689 | int ofs; |
3044 | int ofs; |
2690 | int len = read (fs_fd, buf, sizeof (buf)); |
3045 | int len = read (fs_fd, buf, sizeof (buf)); |
2691 | |
3046 | |
2692 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3047 | for (ofs = 0; ofs < len; ) |
|
|
3048 | { |
|
|
3049 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2693 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3050 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3051 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3052 | } |
|
|
3053 | } |
|
|
3054 | |
|
|
3055 | inline_size unsigned int |
|
|
3056 | ev_linux_version (void) |
|
|
3057 | { |
|
|
3058 | struct utsname buf; |
|
|
3059 | unsigned int v; |
|
|
3060 | int i; |
|
|
3061 | char *p = buf.release; |
|
|
3062 | |
|
|
3063 | if (uname (&buf)) |
|
|
3064 | return 0; |
|
|
3065 | |
|
|
3066 | for (i = 3+1; --i; ) |
|
|
3067 | { |
|
|
3068 | unsigned int c = 0; |
|
|
3069 | |
|
|
3070 | for (;;) |
|
|
3071 | { |
|
|
3072 | if (*p >= '0' && *p <= '9') |
|
|
3073 | c = c * 10 + *p++ - '0'; |
|
|
3074 | else |
|
|
3075 | { |
|
|
3076 | p += *p == '.'; |
|
|
3077 | break; |
|
|
3078 | } |
|
|
3079 | } |
|
|
3080 | |
|
|
3081 | v = (v << 8) | c; |
|
|
3082 | } |
|
|
3083 | |
|
|
3084 | return v; |
2694 | } |
3085 | } |
2695 | |
3086 | |
2696 | inline_size void |
3087 | inline_size void |
2697 | check_2625 (EV_P) |
3088 | ev_check_2625 (EV_P) |
2698 | { |
3089 | { |
2699 | /* kernels < 2.6.25 are borked |
3090 | /* kernels < 2.6.25 are borked |
2700 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3091 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2701 | */ |
3092 | */ |
2702 | struct utsname buf; |
3093 | if (ev_linux_version () < 0x020619) |
2703 | int major, minor, micro; |
|
|
2704 | |
|
|
2705 | if (uname (&buf)) |
|
|
2706 | return; |
3094 | return; |
2707 | |
3095 | |
2708 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2709 | return; |
|
|
2710 | |
|
|
2711 | if (major < 2 |
|
|
2712 | || (major == 2 && minor < 6) |
|
|
2713 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2714 | return; |
|
|
2715 | |
|
|
2716 | fs_2625 = 1; |
3096 | fs_2625 = 1; |
|
|
3097 | } |
|
|
3098 | |
|
|
3099 | inline_size int |
|
|
3100 | infy_newfd (void) |
|
|
3101 | { |
|
|
3102 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3103 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3104 | if (fd >= 0) |
|
|
3105 | return fd; |
|
|
3106 | #endif |
|
|
3107 | return inotify_init (); |
2717 | } |
3108 | } |
2718 | |
3109 | |
2719 | inline_size void |
3110 | inline_size void |
2720 | infy_init (EV_P) |
3111 | infy_init (EV_P) |
2721 | { |
3112 | { |
2722 | if (fs_fd != -2) |
3113 | if (fs_fd != -2) |
2723 | return; |
3114 | return; |
2724 | |
3115 | |
2725 | fs_fd = -1; |
3116 | fs_fd = -1; |
2726 | |
3117 | |
2727 | check_2625 (EV_A); |
3118 | ev_check_2625 (EV_A); |
2728 | |
3119 | |
2729 | fs_fd = inotify_init (); |
3120 | fs_fd = infy_newfd (); |
2730 | |
3121 | |
2731 | if (fs_fd >= 0) |
3122 | if (fs_fd >= 0) |
2732 | { |
3123 | { |
|
|
3124 | fd_intern (fs_fd); |
2733 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3125 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2734 | ev_set_priority (&fs_w, EV_MAXPRI); |
3126 | ev_set_priority (&fs_w, EV_MAXPRI); |
2735 | ev_io_start (EV_A_ &fs_w); |
3127 | ev_io_start (EV_A_ &fs_w); |
|
|
3128 | ev_unref (EV_A); |
2736 | } |
3129 | } |
2737 | } |
3130 | } |
2738 | |
3131 | |
2739 | inline_size void |
3132 | inline_size void |
2740 | infy_fork (EV_P) |
3133 | infy_fork (EV_P) |
… | |
… | |
2742 | int slot; |
3135 | int slot; |
2743 | |
3136 | |
2744 | if (fs_fd < 0) |
3137 | if (fs_fd < 0) |
2745 | return; |
3138 | return; |
2746 | |
3139 | |
|
|
3140 | ev_ref (EV_A); |
|
|
3141 | ev_io_stop (EV_A_ &fs_w); |
2747 | close (fs_fd); |
3142 | close (fs_fd); |
2748 | fs_fd = inotify_init (); |
3143 | fs_fd = infy_newfd (); |
2749 | |
3144 | |
|
|
3145 | if (fs_fd >= 0) |
|
|
3146 | { |
|
|
3147 | fd_intern (fs_fd); |
|
|
3148 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3149 | ev_io_start (EV_A_ &fs_w); |
|
|
3150 | ev_unref (EV_A); |
|
|
3151 | } |
|
|
3152 | |
2750 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3153 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2751 | { |
3154 | { |
2752 | WL w_ = fs_hash [slot].head; |
3155 | WL w_ = fs_hash [slot].head; |
2753 | fs_hash [slot].head = 0; |
3156 | fs_hash [slot].head = 0; |
2754 | |
3157 | |
2755 | while (w_) |
3158 | while (w_) |
… | |
… | |
2760 | w->wd = -1; |
3163 | w->wd = -1; |
2761 | |
3164 | |
2762 | if (fs_fd >= 0) |
3165 | if (fs_fd >= 0) |
2763 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3166 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2764 | else |
3167 | else |
|
|
3168 | { |
|
|
3169 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3170 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2765 | ev_timer_again (EV_A_ &w->timer); |
3171 | ev_timer_again (EV_A_ &w->timer); |
|
|
3172 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3173 | } |
2766 | } |
3174 | } |
2767 | } |
3175 | } |
2768 | } |
3176 | } |
2769 | |
3177 | |
2770 | #endif |
3178 | #endif |
… | |
… | |
2787 | static void noinline |
3195 | static void noinline |
2788 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3196 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2789 | { |
3197 | { |
2790 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3198 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2791 | |
3199 | |
2792 | /* we copy this here each the time so that */ |
3200 | ev_statdata prev = w->attr; |
2793 | /* prev has the old value when the callback gets invoked */ |
|
|
2794 | w->prev = w->attr; |
|
|
2795 | ev_stat_stat (EV_A_ w); |
3201 | ev_stat_stat (EV_A_ w); |
2796 | |
3202 | |
2797 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3203 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2798 | if ( |
3204 | if ( |
2799 | w->prev.st_dev != w->attr.st_dev |
3205 | prev.st_dev != w->attr.st_dev |
2800 | || w->prev.st_ino != w->attr.st_ino |
3206 | || prev.st_ino != w->attr.st_ino |
2801 | || w->prev.st_mode != w->attr.st_mode |
3207 | || prev.st_mode != w->attr.st_mode |
2802 | || w->prev.st_nlink != w->attr.st_nlink |
3208 | || prev.st_nlink != w->attr.st_nlink |
2803 | || w->prev.st_uid != w->attr.st_uid |
3209 | || prev.st_uid != w->attr.st_uid |
2804 | || w->prev.st_gid != w->attr.st_gid |
3210 | || prev.st_gid != w->attr.st_gid |
2805 | || w->prev.st_rdev != w->attr.st_rdev |
3211 | || prev.st_rdev != w->attr.st_rdev |
2806 | || w->prev.st_size != w->attr.st_size |
3212 | || prev.st_size != w->attr.st_size |
2807 | || w->prev.st_atime != w->attr.st_atime |
3213 | || prev.st_atime != w->attr.st_atime |
2808 | || w->prev.st_mtime != w->attr.st_mtime |
3214 | || prev.st_mtime != w->attr.st_mtime |
2809 | || w->prev.st_ctime != w->attr.st_ctime |
3215 | || prev.st_ctime != w->attr.st_ctime |
2810 | ) { |
3216 | ) { |
|
|
3217 | /* we only update w->prev on actual differences */ |
|
|
3218 | /* in case we test more often than invoke the callback, */ |
|
|
3219 | /* to ensure that prev is always different to attr */ |
|
|
3220 | w->prev = prev; |
|
|
3221 | |
2811 | #if EV_USE_INOTIFY |
3222 | #if EV_USE_INOTIFY |
2812 | if (fs_fd >= 0) |
3223 | if (fs_fd >= 0) |
2813 | { |
3224 | { |
2814 | infy_del (EV_A_ w); |
3225 | infy_del (EV_A_ w); |
2815 | infy_add (EV_A_ w); |
3226 | infy_add (EV_A_ w); |
… | |
… | |
2840 | |
3251 | |
2841 | if (fs_fd >= 0) |
3252 | if (fs_fd >= 0) |
2842 | infy_add (EV_A_ w); |
3253 | infy_add (EV_A_ w); |
2843 | else |
3254 | else |
2844 | #endif |
3255 | #endif |
|
|
3256 | { |
2845 | ev_timer_again (EV_A_ &w->timer); |
3257 | ev_timer_again (EV_A_ &w->timer); |
|
|
3258 | ev_unref (EV_A); |
|
|
3259 | } |
2846 | |
3260 | |
2847 | ev_start (EV_A_ (W)w, 1); |
3261 | ev_start (EV_A_ (W)w, 1); |
2848 | |
3262 | |
2849 | EV_FREQUENT_CHECK; |
3263 | EV_FREQUENT_CHECK; |
2850 | } |
3264 | } |
… | |
… | |
2859 | EV_FREQUENT_CHECK; |
3273 | EV_FREQUENT_CHECK; |
2860 | |
3274 | |
2861 | #if EV_USE_INOTIFY |
3275 | #if EV_USE_INOTIFY |
2862 | infy_del (EV_A_ w); |
3276 | infy_del (EV_A_ w); |
2863 | #endif |
3277 | #endif |
|
|
3278 | |
|
|
3279 | if (ev_is_active (&w->timer)) |
|
|
3280 | { |
|
|
3281 | ev_ref (EV_A); |
2864 | ev_timer_stop (EV_A_ &w->timer); |
3282 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3283 | } |
2865 | |
3284 | |
2866 | ev_stop (EV_A_ (W)w); |
3285 | ev_stop (EV_A_ (W)w); |
2867 | |
3286 | |
2868 | EV_FREQUENT_CHECK; |
3287 | EV_FREQUENT_CHECK; |
2869 | } |
3288 | } |
… | |
… | |
2914 | |
3333 | |
2915 | EV_FREQUENT_CHECK; |
3334 | EV_FREQUENT_CHECK; |
2916 | } |
3335 | } |
2917 | #endif |
3336 | #endif |
2918 | |
3337 | |
|
|
3338 | #if EV_PREPARE_ENABLE |
2919 | void |
3339 | void |
2920 | ev_prepare_start (EV_P_ ev_prepare *w) |
3340 | ev_prepare_start (EV_P_ ev_prepare *w) |
2921 | { |
3341 | { |
2922 | if (expect_false (ev_is_active (w))) |
3342 | if (expect_false (ev_is_active (w))) |
2923 | return; |
3343 | return; |
… | |
… | |
2949 | |
3369 | |
2950 | ev_stop (EV_A_ (W)w); |
3370 | ev_stop (EV_A_ (W)w); |
2951 | |
3371 | |
2952 | EV_FREQUENT_CHECK; |
3372 | EV_FREQUENT_CHECK; |
2953 | } |
3373 | } |
|
|
3374 | #endif |
2954 | |
3375 | |
|
|
3376 | #if EV_CHECK_ENABLE |
2955 | void |
3377 | void |
2956 | ev_check_start (EV_P_ ev_check *w) |
3378 | ev_check_start (EV_P_ ev_check *w) |
2957 | { |
3379 | { |
2958 | if (expect_false (ev_is_active (w))) |
3380 | if (expect_false (ev_is_active (w))) |
2959 | return; |
3381 | return; |
… | |
… | |
2985 | |
3407 | |
2986 | ev_stop (EV_A_ (W)w); |
3408 | ev_stop (EV_A_ (W)w); |
2987 | |
3409 | |
2988 | EV_FREQUENT_CHECK; |
3410 | EV_FREQUENT_CHECK; |
2989 | } |
3411 | } |
|
|
3412 | #endif |
2990 | |
3413 | |
2991 | #if EV_EMBED_ENABLE |
3414 | #if EV_EMBED_ENABLE |
2992 | void noinline |
3415 | void noinline |
2993 | ev_embed_sweep (EV_P_ ev_embed *w) |
3416 | ev_embed_sweep (EV_P_ ev_embed *w) |
2994 | { |
3417 | { |
2995 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3418 | ev_run (w->other, EVRUN_NOWAIT); |
2996 | } |
3419 | } |
2997 | |
3420 | |
2998 | static void |
3421 | static void |
2999 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3422 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3000 | { |
3423 | { |
3001 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3424 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3002 | |
3425 | |
3003 | if (ev_cb (w)) |
3426 | if (ev_cb (w)) |
3004 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3427 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3005 | else |
3428 | else |
3006 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3429 | ev_run (w->other, EVRUN_NOWAIT); |
3007 | } |
3430 | } |
3008 | |
3431 | |
3009 | static void |
3432 | static void |
3010 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3433 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3011 | { |
3434 | { |
3012 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3435 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3013 | |
3436 | |
3014 | { |
3437 | { |
3015 | struct ev_loop *loop = w->other; |
3438 | EV_P = w->other; |
3016 | |
3439 | |
3017 | while (fdchangecnt) |
3440 | while (fdchangecnt) |
3018 | { |
3441 | { |
3019 | fd_reify (EV_A); |
3442 | fd_reify (EV_A); |
3020 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3443 | ev_run (EV_A_ EVRUN_NOWAIT); |
3021 | } |
3444 | } |
3022 | } |
3445 | } |
3023 | } |
3446 | } |
3024 | |
3447 | |
3025 | static void |
3448 | static void |
… | |
… | |
3028 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3451 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3029 | |
3452 | |
3030 | ev_embed_stop (EV_A_ w); |
3453 | ev_embed_stop (EV_A_ w); |
3031 | |
3454 | |
3032 | { |
3455 | { |
3033 | struct ev_loop *loop = w->other; |
3456 | EV_P = w->other; |
3034 | |
3457 | |
3035 | ev_loop_fork (EV_A); |
3458 | ev_loop_fork (EV_A); |
3036 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3459 | ev_run (EV_A_ EVRUN_NOWAIT); |
3037 | } |
3460 | } |
3038 | |
3461 | |
3039 | ev_embed_start (EV_A_ w); |
3462 | ev_embed_start (EV_A_ w); |
3040 | } |
3463 | } |
3041 | |
3464 | |
… | |
… | |
3052 | { |
3475 | { |
3053 | if (expect_false (ev_is_active (w))) |
3476 | if (expect_false (ev_is_active (w))) |
3054 | return; |
3477 | return; |
3055 | |
3478 | |
3056 | { |
3479 | { |
3057 | struct ev_loop *loop = w->other; |
3480 | EV_P = w->other; |
3058 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3481 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3059 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3482 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3060 | } |
3483 | } |
3061 | |
3484 | |
3062 | EV_FREQUENT_CHECK; |
3485 | EV_FREQUENT_CHECK; |
… | |
… | |
3089 | |
3512 | |
3090 | ev_io_stop (EV_A_ &w->io); |
3513 | ev_io_stop (EV_A_ &w->io); |
3091 | ev_prepare_stop (EV_A_ &w->prepare); |
3514 | ev_prepare_stop (EV_A_ &w->prepare); |
3092 | ev_fork_stop (EV_A_ &w->fork); |
3515 | ev_fork_stop (EV_A_ &w->fork); |
3093 | |
3516 | |
|
|
3517 | ev_stop (EV_A_ (W)w); |
|
|
3518 | |
3094 | EV_FREQUENT_CHECK; |
3519 | EV_FREQUENT_CHECK; |
3095 | } |
3520 | } |
3096 | #endif |
3521 | #endif |
3097 | |
3522 | |
3098 | #if EV_FORK_ENABLE |
3523 | #if EV_FORK_ENABLE |
… | |
… | |
3138 | ev_async_start (EV_P_ ev_async *w) |
3563 | ev_async_start (EV_P_ ev_async *w) |
3139 | { |
3564 | { |
3140 | if (expect_false (ev_is_active (w))) |
3565 | if (expect_false (ev_is_active (w))) |
3141 | return; |
3566 | return; |
3142 | |
3567 | |
|
|
3568 | w->sent = 0; |
|
|
3569 | |
3143 | evpipe_init (EV_A); |
3570 | evpipe_init (EV_A); |
3144 | |
3571 | |
3145 | EV_FREQUENT_CHECK; |
3572 | EV_FREQUENT_CHECK; |
3146 | |
3573 | |
3147 | ev_start (EV_A_ (W)w, ++asynccnt); |
3574 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
3174 | |
3601 | |
3175 | void |
3602 | void |
3176 | ev_async_send (EV_P_ ev_async *w) |
3603 | ev_async_send (EV_P_ ev_async *w) |
3177 | { |
3604 | { |
3178 | w->sent = 1; |
3605 | w->sent = 1; |
3179 | evpipe_write (EV_A_ &gotasync); |
3606 | evpipe_write (EV_A_ &async_pending); |
3180 | } |
3607 | } |
3181 | #endif |
3608 | #endif |
3182 | |
3609 | |
3183 | /*****************************************************************************/ |
3610 | /*****************************************************************************/ |
3184 | |
3611 | |
… | |
… | |
3224 | { |
3651 | { |
3225 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3652 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3226 | |
3653 | |
3227 | if (expect_false (!once)) |
3654 | if (expect_false (!once)) |
3228 | { |
3655 | { |
3229 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3656 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3230 | return; |
3657 | return; |
3231 | } |
3658 | } |
3232 | |
3659 | |
3233 | once->cb = cb; |
3660 | once->cb = cb; |
3234 | once->arg = arg; |
3661 | once->arg = arg; |
… | |
… | |
3321 | if (types & EV_ASYNC) |
3748 | if (types & EV_ASYNC) |
3322 | for (i = asynccnt; i--; ) |
3749 | for (i = asynccnt; i--; ) |
3323 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3750 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3324 | #endif |
3751 | #endif |
3325 | |
3752 | |
|
|
3753 | #if EV_PREPARE_ENABLE |
3326 | if (types & EV_PREPARE) |
3754 | if (types & EV_PREPARE) |
3327 | for (i = preparecnt; i--; ) |
3755 | for (i = preparecnt; i--; ) |
3328 | #if EV_EMBED_ENABLE |
3756 | # if EV_EMBED_ENABLE |
3329 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3757 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3330 | #endif |
3758 | # endif |
3331 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3759 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3760 | #endif |
3332 | |
3761 | |
|
|
3762 | #if EV_CHECK_ENABLE |
3333 | if (types & EV_CHECK) |
3763 | if (types & EV_CHECK) |
3334 | for (i = checkcnt; i--; ) |
3764 | for (i = checkcnt; i--; ) |
3335 | cb (EV_A_ EV_CHECK, checks [i]); |
3765 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3766 | #endif |
3336 | |
3767 | |
|
|
3768 | #if EV_SIGNAL_ENABLE |
3337 | if (types & EV_SIGNAL) |
3769 | if (types & EV_SIGNAL) |
3338 | for (i = 0; i < signalmax; ++i) |
3770 | for (i = 0; i < EV_NSIG - 1; ++i) |
3339 | for (wl = signals [i].head; wl; ) |
3771 | for (wl = signals [i].head; wl; ) |
3340 | { |
3772 | { |
3341 | wn = wl->next; |
3773 | wn = wl->next; |
3342 | cb (EV_A_ EV_SIGNAL, wl); |
3774 | cb (EV_A_ EV_SIGNAL, wl); |
3343 | wl = wn; |
3775 | wl = wn; |
3344 | } |
3776 | } |
|
|
3777 | #endif |
3345 | |
3778 | |
|
|
3779 | #if EV_CHILD_ENABLE |
3346 | if (types & EV_CHILD) |
3780 | if (types & EV_CHILD) |
3347 | for (i = EV_PID_HASHSIZE; i--; ) |
3781 | for (i = (EV_PID_HASHSIZE); i--; ) |
3348 | for (wl = childs [i]; wl; ) |
3782 | for (wl = childs [i]; wl; ) |
3349 | { |
3783 | { |
3350 | wn = wl->next; |
3784 | wn = wl->next; |
3351 | cb (EV_A_ EV_CHILD, wl); |
3785 | cb (EV_A_ EV_CHILD, wl); |
3352 | wl = wn; |
3786 | wl = wn; |
3353 | } |
3787 | } |
|
|
3788 | #endif |
3354 | /* EV_STAT 0x00001000 /* stat data changed */ |
3789 | /* EV_STAT 0x00001000 /* stat data changed */ |
3355 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3790 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3356 | } |
3791 | } |
3357 | #endif |
3792 | #endif |
3358 | |
3793 | |
3359 | #if EV_MULTIPLICITY |
3794 | #if EV_MULTIPLICITY |
3360 | #include "ev_wrap.h" |
3795 | #include "ev_wrap.h" |
3361 | #endif |
3796 | #endif |
3362 | |
3797 | |
3363 | #ifdef __cplusplus |
3798 | EV_CPP(}) |
3364 | } |
|
|
3365 | #endif |
|
|
3366 | |
3799 | |