1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
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 |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
79 | # endif |
81 | # endif |
80 | # endif |
82 | # endif |
81 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
85 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
88 | # endif |
100 | # endif |
89 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
105 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
109 | # endif |
105 | |
110 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
109 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
114 | # ifndef EV_USE_KQUEUE |
|
|
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
121 | # ifndef EV_USE_KQUEUE |
117 | # else |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
120 | # endif |
127 | # endif |
121 | |
128 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
125 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
128 | # endif |
136 | # endif |
129 | |
137 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
136 | # endif |
145 | # endif |
137 | |
146 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
148 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
154 | # endif |
145 | |
155 | |
|
|
156 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
157 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
152 | # endif |
163 | # endif |
153 | |
164 | |
154 | #endif |
165 | #endif |
155 | |
166 | |
156 | #include <math.h> |
|
|
157 | #include <stdlib.h> |
167 | #include <stdlib.h> |
158 | #include <string.h> |
168 | #include <string.h> |
159 | #include <fcntl.h> |
169 | #include <fcntl.h> |
160 | #include <stddef.h> |
170 | #include <stddef.h> |
161 | |
171 | |
… | |
… | |
184 | # define WIN32_LEAN_AND_MEAN |
194 | # define WIN32_LEAN_AND_MEAN |
185 | # include <windows.h> |
195 | # include <windows.h> |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
196 | # ifndef EV_SELECT_IS_WINSOCKET |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
197 | # define EV_SELECT_IS_WINSOCKET 1 |
188 | # endif |
198 | # endif |
|
|
199 | # undef EV_AVOID_STDIO |
189 | #endif |
200 | #endif |
|
|
201 | |
|
|
202 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
203 | * a limit of 1024 into their select. Where people have brains, |
|
|
204 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
205 | * ordered to have a vacuum, or they do anything for money. |
|
|
206 | * This might help. Or not. |
|
|
207 | */ |
|
|
208 | #define _DARWIN_UNLIMITED_SELECT 1 |
190 | |
209 | |
191 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
210 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | |
211 | |
193 | /* try to deduce the maximum number of signals on this platform */ |
212 | /* try to deduce the maximum number of signals on this platform */ |
194 | #if defined (EV_NSIG) |
213 | #if defined (EV_NSIG) |
… | |
… | |
206 | #elif defined (MAXSIG) |
225 | #elif defined (MAXSIG) |
207 | # define EV_NSIG (MAXSIG+1) |
226 | # define EV_NSIG (MAXSIG+1) |
208 | #elif defined (MAX_SIG) |
227 | #elif defined (MAX_SIG) |
209 | # define EV_NSIG (MAX_SIG+1) |
228 | # define EV_NSIG (MAX_SIG+1) |
210 | #elif defined (SIGARRAYSIZE) |
229 | #elif defined (SIGARRAYSIZE) |
211 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
230 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
212 | #elif defined (_sys_nsig) |
231 | #elif defined (_sys_nsig) |
213 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
232 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
214 | #else |
233 | #else |
215 | # error "unable to find value for NSIG, please report" |
234 | # error "unable to find value for NSIG, please report" |
216 | /* to make it compile regardless, just remove the above line */ |
235 | /* to make it compile regardless, just remove the above line, */ |
|
|
236 | /* but consider reporting it, too! :) */ |
217 | # define EV_NSIG 65 |
237 | # define EV_NSIG 65 |
|
|
238 | #endif |
|
|
239 | |
|
|
240 | #ifndef EV_USE_FLOOR |
|
|
241 | # define EV_USE_FLOOR 0 |
218 | #endif |
242 | #endif |
219 | |
243 | |
220 | #ifndef EV_USE_CLOCK_SYSCALL |
244 | #ifndef EV_USE_CLOCK_SYSCALL |
221 | # if __linux && __GLIBC__ >= 2 |
245 | # if __linux && __GLIBC__ >= 2 |
222 | # define EV_USE_CLOCK_SYSCALL 1 |
246 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
223 | # else |
247 | # else |
224 | # define EV_USE_CLOCK_SYSCALL 0 |
248 | # define EV_USE_CLOCK_SYSCALL 0 |
225 | # endif |
249 | # endif |
226 | #endif |
250 | #endif |
227 | |
251 | |
228 | #ifndef EV_USE_MONOTONIC |
252 | #ifndef EV_USE_MONOTONIC |
229 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
253 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
230 | # define EV_USE_MONOTONIC 1 |
254 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
231 | # else |
255 | # else |
232 | # define EV_USE_MONOTONIC 0 |
256 | # define EV_USE_MONOTONIC 0 |
233 | # endif |
257 | # endif |
234 | #endif |
258 | #endif |
235 | |
259 | |
… | |
… | |
237 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
261 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
238 | #endif |
262 | #endif |
239 | |
263 | |
240 | #ifndef EV_USE_NANOSLEEP |
264 | #ifndef EV_USE_NANOSLEEP |
241 | # if _POSIX_C_SOURCE >= 199309L |
265 | # if _POSIX_C_SOURCE >= 199309L |
242 | # define EV_USE_NANOSLEEP 1 |
266 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
243 | # else |
267 | # else |
244 | # define EV_USE_NANOSLEEP 0 |
268 | # define EV_USE_NANOSLEEP 0 |
245 | # endif |
269 | # endif |
246 | #endif |
270 | #endif |
247 | |
271 | |
248 | #ifndef EV_USE_SELECT |
272 | #ifndef EV_USE_SELECT |
249 | # define EV_USE_SELECT 1 |
273 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
250 | #endif |
274 | #endif |
251 | |
275 | |
252 | #ifndef EV_USE_POLL |
276 | #ifndef EV_USE_POLL |
253 | # ifdef _WIN32 |
277 | # ifdef _WIN32 |
254 | # define EV_USE_POLL 0 |
278 | # define EV_USE_POLL 0 |
255 | # else |
279 | # else |
256 | # define EV_USE_POLL 1 |
280 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
257 | # endif |
281 | # endif |
258 | #endif |
282 | #endif |
259 | |
283 | |
260 | #ifndef EV_USE_EPOLL |
284 | #ifndef EV_USE_EPOLL |
261 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
285 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
262 | # define EV_USE_EPOLL 1 |
286 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
263 | # else |
287 | # else |
264 | # define EV_USE_EPOLL 0 |
288 | # define EV_USE_EPOLL 0 |
265 | # endif |
289 | # endif |
266 | #endif |
290 | #endif |
267 | |
291 | |
… | |
… | |
273 | # define EV_USE_PORT 0 |
297 | # define EV_USE_PORT 0 |
274 | #endif |
298 | #endif |
275 | |
299 | |
276 | #ifndef EV_USE_INOTIFY |
300 | #ifndef EV_USE_INOTIFY |
277 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # define EV_USE_INOTIFY 1 |
302 | # define EV_USE_INOTIFY EV_FEATURE_OS |
279 | # else |
303 | # else |
280 | # define EV_USE_INOTIFY 0 |
304 | # define EV_USE_INOTIFY 0 |
281 | # endif |
305 | # endif |
282 | #endif |
306 | #endif |
283 | |
307 | |
284 | #ifndef EV_PID_HASHSIZE |
308 | #ifndef EV_PID_HASHSIZE |
285 | # if EV_MINIMAL |
309 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
286 | # define EV_PID_HASHSIZE 1 |
|
|
287 | # else |
|
|
288 | # define EV_PID_HASHSIZE 16 |
|
|
289 | # endif |
|
|
290 | #endif |
310 | #endif |
291 | |
311 | |
292 | #ifndef EV_INOTIFY_HASHSIZE |
312 | #ifndef EV_INOTIFY_HASHSIZE |
293 | # if EV_MINIMAL |
313 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
294 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
295 | # else |
|
|
296 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
297 | # endif |
|
|
298 | #endif |
314 | #endif |
299 | |
315 | |
300 | #ifndef EV_USE_EVENTFD |
316 | #ifndef EV_USE_EVENTFD |
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
317 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
302 | # define EV_USE_EVENTFD 1 |
318 | # define EV_USE_EVENTFD EV_FEATURE_OS |
303 | # else |
319 | # else |
304 | # define EV_USE_EVENTFD 0 |
320 | # define EV_USE_EVENTFD 0 |
305 | # endif |
321 | # endif |
306 | #endif |
322 | #endif |
307 | |
323 | |
308 | #ifndef EV_USE_SIGNALFD |
324 | #ifndef EV_USE_SIGNALFD |
309 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
325 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # define EV_USE_SIGNALFD 1 |
326 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
311 | # else |
327 | # else |
312 | # define EV_USE_SIGNALFD 0 |
328 | # define EV_USE_SIGNALFD 0 |
313 | # endif |
329 | # endif |
314 | #endif |
330 | #endif |
315 | |
331 | |
… | |
… | |
318 | # define EV_USE_4HEAP 1 |
334 | # define EV_USE_4HEAP 1 |
319 | # define EV_HEAP_CACHE_AT 1 |
335 | # define EV_HEAP_CACHE_AT 1 |
320 | #endif |
336 | #endif |
321 | |
337 | |
322 | #ifndef EV_VERIFY |
338 | #ifndef EV_VERIFY |
323 | # define EV_VERIFY !EV_MINIMAL |
339 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
324 | #endif |
340 | #endif |
325 | |
341 | |
326 | #ifndef EV_USE_4HEAP |
342 | #ifndef EV_USE_4HEAP |
327 | # define EV_USE_4HEAP !EV_MINIMAL |
343 | # define EV_USE_4HEAP EV_FEATURE_DATA |
328 | #endif |
344 | #endif |
329 | |
345 | |
330 | #ifndef EV_HEAP_CACHE_AT |
346 | #ifndef EV_HEAP_CACHE_AT |
331 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
347 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
332 | #endif |
348 | #endif |
333 | |
349 | |
334 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
350 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
335 | /* which makes programs even slower. might work on other unices, too. */ |
351 | /* which makes programs even slower. might work on other unices, too. */ |
336 | #if EV_USE_CLOCK_SYSCALL |
352 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
367 | # undef EV_USE_INOTIFY |
383 | # undef EV_USE_INOTIFY |
368 | # define EV_USE_INOTIFY 0 |
384 | # define EV_USE_INOTIFY 0 |
369 | #endif |
385 | #endif |
370 | |
386 | |
371 | #if !EV_USE_NANOSLEEP |
387 | #if !EV_USE_NANOSLEEP |
372 | # ifndef _WIN32 |
388 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
389 | # if !defined(_WIN32) && !defined(__hpux) |
373 | # include <sys/select.h> |
390 | # include <sys/select.h> |
374 | # endif |
391 | # endif |
375 | #endif |
392 | #endif |
376 | |
393 | |
377 | #if EV_USE_INOTIFY |
394 | #if EV_USE_INOTIFY |
378 | # include <sys/utsname.h> |
|
|
379 | # include <sys/statfs.h> |
395 | # include <sys/statfs.h> |
380 | # include <sys/inotify.h> |
396 | # include <sys/inotify.h> |
381 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
397 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
382 | # ifndef IN_DONT_FOLLOW |
398 | # ifndef IN_DONT_FOLLOW |
383 | # undef EV_USE_INOTIFY |
399 | # undef EV_USE_INOTIFY |
… | |
… | |
400 | # define EFD_CLOEXEC O_CLOEXEC |
416 | # define EFD_CLOEXEC O_CLOEXEC |
401 | # else |
417 | # else |
402 | # define EFD_CLOEXEC 02000000 |
418 | # define EFD_CLOEXEC 02000000 |
403 | # endif |
419 | # endif |
404 | # endif |
420 | # endif |
405 | # ifdef __cplusplus |
|
|
406 | extern "C" { |
|
|
407 | # endif |
|
|
408 | int eventfd (unsigned int initval, int flags); |
421 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
409 | # ifdef __cplusplus |
|
|
410 | } |
|
|
411 | # endif |
|
|
412 | #endif |
422 | #endif |
413 | |
423 | |
414 | #if EV_USE_SIGNALFD |
424 | #if EV_USE_SIGNALFD |
415 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
425 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
416 | # include <stdint.h> |
426 | # include <stdint.h> |
… | |
… | |
422 | # define SFD_CLOEXEC O_CLOEXEC |
432 | # define SFD_CLOEXEC O_CLOEXEC |
423 | # else |
433 | # else |
424 | # define SFD_CLOEXEC 02000000 |
434 | # define SFD_CLOEXEC 02000000 |
425 | # endif |
435 | # endif |
426 | # endif |
436 | # endif |
427 | # ifdef __cplusplus |
|
|
428 | extern "C" { |
|
|
429 | # endif |
|
|
430 | int signalfd (int fd, const sigset_t *mask, int flags); |
437 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
431 | |
438 | |
432 | struct signalfd_siginfo |
439 | struct signalfd_siginfo |
433 | { |
440 | { |
434 | uint32_t ssi_signo; |
441 | uint32_t ssi_signo; |
435 | char pad[128 - sizeof (uint32_t)]; |
442 | char pad[128 - sizeof (uint32_t)]; |
436 | }; |
443 | }; |
437 | # ifdef __cplusplus |
|
|
438 | } |
|
|
439 | # endif |
444 | #endif |
440 | #endif |
|
|
441 | |
|
|
442 | |
445 | |
443 | /**/ |
446 | /**/ |
444 | |
447 | |
445 | #if EV_VERIFY >= 3 |
448 | #if EV_VERIFY >= 3 |
446 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
449 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
447 | #else |
450 | #else |
448 | # define EV_FREQUENT_CHECK do { } while (0) |
451 | # define EV_FREQUENT_CHECK do { } while (0) |
449 | #endif |
452 | #endif |
450 | |
453 | |
451 | /* |
454 | /* |
452 | * This is used to avoid floating point rounding problems. |
455 | * This is used to work around floating point rounding problems. |
453 | * It is added to ev_rt_now when scheduling periodics |
|
|
454 | * to ensure progress, time-wise, even when rounding |
|
|
455 | * errors are against us. |
|
|
456 | * This value is good at least till the year 4000. |
456 | * This value is good at least till the year 4000. |
457 | * Better solutions welcome. |
|
|
458 | */ |
457 | */ |
459 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
458 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
459 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
460 | |
460 | |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
463 | |
463 | |
|
|
464 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
465 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
466 | |
|
|
467 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
468 | /* ECB.H BEGIN */ |
|
|
469 | /* |
|
|
470 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
471 | * |
|
|
472 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
473 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
474 | * All rights reserved. |
|
|
475 | * |
|
|
476 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
477 | * tion, are permitted provided that the following conditions are met: |
|
|
478 | * |
|
|
479 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
480 | * this list of conditions and the following disclaimer. |
|
|
481 | * |
|
|
482 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
483 | * notice, this list of conditions and the following disclaimer in the |
|
|
484 | * documentation and/or other materials provided with the distribution. |
|
|
485 | * |
|
|
486 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
487 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
488 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
489 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
490 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
491 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
492 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
493 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
494 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
495 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
496 | */ |
|
|
497 | |
|
|
498 | #ifndef ECB_H |
|
|
499 | #define ECB_H |
|
|
500 | |
|
|
501 | #ifdef _WIN32 |
|
|
502 | typedef signed char int8_t; |
|
|
503 | typedef unsigned char uint8_t; |
|
|
504 | typedef signed short int16_t; |
|
|
505 | typedef unsigned short uint16_t; |
|
|
506 | typedef signed int int32_t; |
|
|
507 | typedef unsigned int uint32_t; |
464 | #if __GNUC__ >= 4 |
508 | #if __GNUC__ |
465 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
509 | typedef signed long long int64_t; |
466 | # define noinline __attribute__ ((noinline)) |
510 | typedef unsigned long long uint64_t; |
|
|
511 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
512 | typedef signed __int64 int64_t; |
|
|
513 | typedef unsigned __int64 uint64_t; |
|
|
514 | #endif |
467 | #else |
515 | #else |
468 | # define expect(expr,value) (expr) |
516 | #include <inttypes.h> |
469 | # define noinline |
|
|
470 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
471 | # define inline |
|
|
472 | # endif |
517 | #endif |
|
|
518 | |
|
|
519 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
520 | * what their idiot authors think are the "more important" extensions, |
|
|
521 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
522 | * or so. |
|
|
523 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
524 | * an issue with that they should have done it right in the first place. |
|
|
525 | */ |
|
|
526 | #ifndef ECB_GCC_VERSION |
|
|
527 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
528 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
529 | #else |
|
|
530 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
473 | #endif |
531 | #endif |
|
|
532 | #endif |
474 | |
533 | |
|
|
534 | /*****************************************************************************/ |
|
|
535 | |
|
|
536 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
537 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
538 | |
|
|
539 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
540 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
541 | #endif |
|
|
542 | |
|
|
543 | #ifndef ECB_MEMORY_FENCE |
|
|
544 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
545 | #if __i386 || __i386__ |
|
|
546 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
547 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
548 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
549 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
551 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
552 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
553 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
555 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
|
|
556 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
|
|
557 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
558 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
559 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
560 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
561 | #elif __sparc || __sparc__ |
|
|
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
|
|
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
565 | #elif defined(__s390__) || defined(__s390x__) |
|
|
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
567 | #endif |
|
|
568 | #endif |
|
|
569 | #endif |
|
|
570 | |
|
|
571 | #ifndef ECB_MEMORY_FENCE |
|
|
572 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
|
|
573 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
574 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
575 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
576 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
577 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
578 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
579 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
580 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
581 | #elif defined(_WIN32) |
|
|
582 | #include <WinNT.h> |
|
|
583 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
584 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
585 | #include <mbarrier.h> |
|
|
586 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
587 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
588 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
589 | #endif |
|
|
590 | #endif |
|
|
591 | |
|
|
592 | #ifndef ECB_MEMORY_FENCE |
|
|
593 | #if !ECB_AVOID_PTHREADS |
|
|
594 | /* |
|
|
595 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
596 | * or failure to find pthread.h, then you should implement |
|
|
597 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
598 | * OR provide pthread.h and link against the posix thread library |
|
|
599 | * of your system. |
|
|
600 | */ |
|
|
601 | #include <pthread.h> |
|
|
602 | #define ECB_NEEDS_PTHREADS 1 |
|
|
603 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
604 | |
|
|
605 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
606 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
607 | #endif |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
611 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
615 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
616 | #endif |
|
|
617 | |
|
|
618 | /*****************************************************************************/ |
|
|
619 | |
|
|
620 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
621 | |
|
|
622 | #if __cplusplus |
|
|
623 | #define ecb_inline static inline |
|
|
624 | #elif ECB_GCC_VERSION(2,5) |
|
|
625 | #define ecb_inline static __inline__ |
|
|
626 | #elif ECB_C99 |
|
|
627 | #define ecb_inline static inline |
|
|
628 | #else |
|
|
629 | #define ecb_inline static |
|
|
630 | #endif |
|
|
631 | |
|
|
632 | #if ECB_GCC_VERSION(3,3) |
|
|
633 | #define ecb_restrict __restrict__ |
|
|
634 | #elif ECB_C99 |
|
|
635 | #define ecb_restrict restrict |
|
|
636 | #else |
|
|
637 | #define ecb_restrict |
|
|
638 | #endif |
|
|
639 | |
|
|
640 | typedef int ecb_bool; |
|
|
641 | |
|
|
642 | #define ECB_CONCAT_(a, b) a ## b |
|
|
643 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
644 | #define ECB_STRINGIFY_(a) # a |
|
|
645 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
646 | |
|
|
647 | #define ecb_function_ ecb_inline |
|
|
648 | |
|
|
649 | #if ECB_GCC_VERSION(3,1) |
|
|
650 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
651 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
652 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
653 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
654 | #else |
|
|
655 | #define ecb_attribute(attrlist) |
|
|
656 | #define ecb_is_constant(expr) 0 |
|
|
657 | #define ecb_expect(expr,value) (expr) |
|
|
658 | #define ecb_prefetch(addr,rw,locality) |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | /* no emulation for ecb_decltype */ |
|
|
662 | #if ECB_GCC_VERSION(4,5) |
|
|
663 | #define ecb_decltype(x) __decltype(x) |
|
|
664 | #elif ECB_GCC_VERSION(3,0) |
|
|
665 | #define ecb_decltype(x) __typeof(x) |
|
|
666 | #endif |
|
|
667 | |
|
|
668 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
669 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
670 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
671 | #define ecb_const ecb_attribute ((__const__)) |
|
|
672 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
673 | |
|
|
674 | #if ECB_GCC_VERSION(4,3) |
|
|
675 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
676 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
677 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
678 | #else |
|
|
679 | #define ecb_artificial |
|
|
680 | #define ecb_hot |
|
|
681 | #define ecb_cold |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | /* put around conditional expressions if you are very sure that the */ |
|
|
685 | /* expression is mostly true or mostly false. note that these return */ |
|
|
686 | /* booleans, not the expression. */ |
475 | #define expect_false(expr) expect ((expr) != 0, 0) |
687 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
476 | #define expect_true(expr) expect ((expr) != 0, 1) |
688 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
689 | /* for compatibility to the rest of the world */ |
|
|
690 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
691 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
692 | |
|
|
693 | /* count trailing zero bits and count # of one bits */ |
|
|
694 | #if ECB_GCC_VERSION(3,4) |
|
|
695 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
696 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
697 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
698 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
699 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
700 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
701 | /* no popcountll */ |
|
|
702 | #else |
|
|
703 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
704 | ecb_function_ int |
|
|
705 | ecb_ctz32 (uint32_t x) |
|
|
706 | { |
|
|
707 | int r = 0; |
|
|
708 | |
|
|
709 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
710 | |
|
|
711 | #if ECB_branchless_on_i386 |
|
|
712 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
713 | r += !!(x & 0xcccccccc) << 1; |
|
|
714 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
715 | r += !!(x & 0xff00ff00) << 3; |
|
|
716 | r += !!(x & 0xffff0000) << 4; |
|
|
717 | #else |
|
|
718 | if (x & 0xaaaaaaaa) r += 1; |
|
|
719 | if (x & 0xcccccccc) r += 2; |
|
|
720 | if (x & 0xf0f0f0f0) r += 4; |
|
|
721 | if (x & 0xff00ff00) r += 8; |
|
|
722 | if (x & 0xffff0000) r += 16; |
|
|
723 | #endif |
|
|
724 | |
|
|
725 | return r; |
|
|
726 | } |
|
|
727 | |
|
|
728 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
729 | ecb_function_ int |
|
|
730 | ecb_ctz64 (uint64_t x) |
|
|
731 | { |
|
|
732 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
733 | return ecb_ctz32 (x >> shift) + shift; |
|
|
734 | } |
|
|
735 | |
|
|
736 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
737 | ecb_function_ int |
|
|
738 | ecb_popcount32 (uint32_t x) |
|
|
739 | { |
|
|
740 | x -= (x >> 1) & 0x55555555; |
|
|
741 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
742 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
743 | x *= 0x01010101; |
|
|
744 | |
|
|
745 | return x >> 24; |
|
|
746 | } |
|
|
747 | |
|
|
748 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
749 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
750 | { |
|
|
751 | int r = 0; |
|
|
752 | |
|
|
753 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
754 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
755 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
756 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
757 | if (x >> 1) { r += 1; } |
|
|
758 | |
|
|
759 | return r; |
|
|
760 | } |
|
|
761 | |
|
|
762 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
763 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
764 | { |
|
|
765 | int r = 0; |
|
|
766 | |
|
|
767 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
768 | |
|
|
769 | return r + ecb_ld32 (x); |
|
|
770 | } |
|
|
771 | #endif |
|
|
772 | |
|
|
773 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
774 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
775 | { |
|
|
776 | return ( (x * 0x0802U & 0x22110U) |
|
|
777 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
778 | } |
|
|
779 | |
|
|
780 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
781 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
782 | { |
|
|
783 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
784 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
785 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
786 | x = ( x >> 8 ) | ( x << 8); |
|
|
787 | |
|
|
788 | return x; |
|
|
789 | } |
|
|
790 | |
|
|
791 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
792 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
793 | { |
|
|
794 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
795 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
796 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
797 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
798 | x = ( x >> 16 ) | ( x << 16); |
|
|
799 | |
|
|
800 | return x; |
|
|
801 | } |
|
|
802 | |
|
|
803 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
804 | /* so for this version we are lazy */ |
|
|
805 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
806 | ecb_function_ int |
|
|
807 | ecb_popcount64 (uint64_t x) |
|
|
808 | { |
|
|
809 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
810 | } |
|
|
811 | |
|
|
812 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
813 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
814 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
815 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
816 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
817 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
818 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
819 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
820 | |
|
|
821 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
822 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
823 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
824 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
825 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
826 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
827 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
828 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
829 | |
|
|
830 | #if ECB_GCC_VERSION(4,3) |
|
|
831 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
832 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
833 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
834 | #else |
|
|
835 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
836 | ecb_function_ uint16_t |
|
|
837 | ecb_bswap16 (uint16_t x) |
|
|
838 | { |
|
|
839 | return ecb_rotl16 (x, 8); |
|
|
840 | } |
|
|
841 | |
|
|
842 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
843 | ecb_function_ uint32_t |
|
|
844 | ecb_bswap32 (uint32_t x) |
|
|
845 | { |
|
|
846 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
847 | } |
|
|
848 | |
|
|
849 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
850 | ecb_function_ uint64_t |
|
|
851 | ecb_bswap64 (uint64_t x) |
|
|
852 | { |
|
|
853 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
854 | } |
|
|
855 | #endif |
|
|
856 | |
|
|
857 | #if ECB_GCC_VERSION(4,5) |
|
|
858 | #define ecb_unreachable() __builtin_unreachable () |
|
|
859 | #else |
|
|
860 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
861 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
862 | ecb_inline void ecb_unreachable (void) { } |
|
|
863 | #endif |
|
|
864 | |
|
|
865 | /* try to tell the compiler that some condition is definitely true */ |
|
|
866 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
867 | |
|
|
868 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
869 | ecb_inline unsigned char |
|
|
870 | ecb_byteorder_helper (void) |
|
|
871 | { |
|
|
872 | const uint32_t u = 0x11223344; |
|
|
873 | return *(unsigned char *)&u; |
|
|
874 | } |
|
|
875 | |
|
|
876 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
877 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
878 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
879 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
880 | |
|
|
881 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
882 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
883 | #else |
|
|
884 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
885 | #endif |
|
|
886 | |
|
|
887 | #if __cplusplus |
|
|
888 | template<typename T> |
|
|
889 | static inline T ecb_div_rd (T val, T div) |
|
|
890 | { |
|
|
891 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
892 | } |
|
|
893 | template<typename T> |
|
|
894 | static inline T ecb_div_ru (T val, T div) |
|
|
895 | { |
|
|
896 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
897 | } |
|
|
898 | #else |
|
|
899 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
900 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | #if ecb_cplusplus_does_not_suck |
|
|
904 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
905 | template<typename T, int N> |
|
|
906 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
907 | { |
|
|
908 | return N; |
|
|
909 | } |
|
|
910 | #else |
|
|
911 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
912 | #endif |
|
|
913 | |
|
|
914 | #endif |
|
|
915 | |
|
|
916 | /* ECB.H END */ |
|
|
917 | |
|
|
918 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
919 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
920 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
921 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
922 | * libev, in which cases the memory fences become nops. |
|
|
923 | * alternatively, you can remove this #error and link against libpthread, |
|
|
924 | * which will then provide the memory fences. |
|
|
925 | */ |
|
|
926 | # error "memory fences not defined for your architecture, please report" |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #ifndef ECB_MEMORY_FENCE |
|
|
930 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
931 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
932 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
936 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
937 | #define noinline ecb_noinline |
|
|
938 | |
477 | #define inline_size static inline |
939 | #define inline_size ecb_inline |
478 | |
940 | |
479 | #if EV_MINIMAL |
941 | #if EV_FEATURE_CODE |
|
|
942 | # define inline_speed ecb_inline |
|
|
943 | #else |
480 | # define inline_speed static noinline |
944 | # define inline_speed static noinline |
481 | #else |
|
|
482 | # define inline_speed static inline |
|
|
483 | #endif |
945 | #endif |
484 | |
946 | |
485 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
947 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
486 | |
948 | |
487 | #if EV_MINPRI == EV_MAXPRI |
949 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
500 | #define ev_active(w) ((W)(w))->active |
962 | #define ev_active(w) ((W)(w))->active |
501 | #define ev_at(w) ((WT)(w))->at |
963 | #define ev_at(w) ((WT)(w))->at |
502 | |
964 | |
503 | #if EV_USE_REALTIME |
965 | #if EV_USE_REALTIME |
504 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
966 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
505 | /* giving it a reasonably high chance of working on typical architetcures */ |
967 | /* giving it a reasonably high chance of working on typical architectures */ |
506 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
968 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
507 | #endif |
969 | #endif |
508 | |
970 | |
509 | #if EV_USE_MONOTONIC |
971 | #if EV_USE_MONOTONIC |
510 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
972 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
524 | # include "ev_win32.c" |
986 | # include "ev_win32.c" |
525 | #endif |
987 | #endif |
526 | |
988 | |
527 | /*****************************************************************************/ |
989 | /*****************************************************************************/ |
528 | |
990 | |
|
|
991 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
992 | |
|
|
993 | #if EV_USE_FLOOR |
|
|
994 | # include <math.h> |
|
|
995 | # define ev_floor(v) floor (v) |
|
|
996 | #else |
|
|
997 | |
|
|
998 | #include <float.h> |
|
|
999 | |
|
|
1000 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1001 | static ev_tstamp noinline |
|
|
1002 | ev_floor (ev_tstamp v) |
|
|
1003 | { |
|
|
1004 | /* the choice of shift factor is not terribly important */ |
|
|
1005 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1006 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1007 | #else |
|
|
1008 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1009 | #endif |
|
|
1010 | |
|
|
1011 | /* argument too large for an unsigned long? */ |
|
|
1012 | if (expect_false (v >= shift)) |
|
|
1013 | { |
|
|
1014 | ev_tstamp f; |
|
|
1015 | |
|
|
1016 | if (v == v - 1.) |
|
|
1017 | return v; /* very large number */ |
|
|
1018 | |
|
|
1019 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1020 | return f + ev_floor (v - f); |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | /* special treatment for negative args? */ |
|
|
1024 | if (expect_false (v < 0.)) |
|
|
1025 | { |
|
|
1026 | ev_tstamp f = -ev_floor (-v); |
|
|
1027 | |
|
|
1028 | return f - (f == v ? 0 : 1); |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | /* fits into an unsigned long */ |
|
|
1032 | return (unsigned long)v; |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | #endif |
|
|
1036 | |
|
|
1037 | /*****************************************************************************/ |
|
|
1038 | |
|
|
1039 | #ifdef __linux |
|
|
1040 | # include <sys/utsname.h> |
|
|
1041 | #endif |
|
|
1042 | |
|
|
1043 | static unsigned int noinline ecb_cold |
|
|
1044 | ev_linux_version (void) |
|
|
1045 | { |
|
|
1046 | #ifdef __linux |
|
|
1047 | unsigned int v = 0; |
|
|
1048 | struct utsname buf; |
|
|
1049 | int i; |
|
|
1050 | char *p = buf.release; |
|
|
1051 | |
|
|
1052 | if (uname (&buf)) |
|
|
1053 | return 0; |
|
|
1054 | |
|
|
1055 | for (i = 3+1; --i; ) |
|
|
1056 | { |
|
|
1057 | unsigned int c = 0; |
|
|
1058 | |
|
|
1059 | for (;;) |
|
|
1060 | { |
|
|
1061 | if (*p >= '0' && *p <= '9') |
|
|
1062 | c = c * 10 + *p++ - '0'; |
|
|
1063 | else |
|
|
1064 | { |
|
|
1065 | p += *p == '.'; |
|
|
1066 | break; |
|
|
1067 | } |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | v = (v << 8) | c; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | return v; |
|
|
1074 | #else |
|
|
1075 | return 0; |
|
|
1076 | #endif |
|
|
1077 | } |
|
|
1078 | |
|
|
1079 | /*****************************************************************************/ |
|
|
1080 | |
|
|
1081 | #if EV_AVOID_STDIO |
|
|
1082 | static void noinline ecb_cold |
|
|
1083 | ev_printerr (const char *msg) |
|
|
1084 | { |
|
|
1085 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1086 | } |
|
|
1087 | #endif |
|
|
1088 | |
529 | static void (*syserr_cb)(const char *msg); |
1089 | static void (*syserr_cb)(const char *msg); |
530 | |
1090 | |
531 | void |
1091 | void ecb_cold |
532 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1092 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
533 | { |
1093 | { |
534 | syserr_cb = cb; |
1094 | syserr_cb = cb; |
535 | } |
1095 | } |
536 | |
1096 | |
537 | static void noinline |
1097 | static void noinline ecb_cold |
538 | ev_syserr (const char *msg) |
1098 | ev_syserr (const char *msg) |
539 | { |
1099 | { |
540 | if (!msg) |
1100 | if (!msg) |
541 | msg = "(libev) system error"; |
1101 | msg = "(libev) system error"; |
542 | |
1102 | |
543 | if (syserr_cb) |
1103 | if (syserr_cb) |
544 | syserr_cb (msg); |
1104 | syserr_cb (msg); |
545 | else |
1105 | else |
546 | { |
1106 | { |
|
|
1107 | #if EV_AVOID_STDIO |
|
|
1108 | ev_printerr (msg); |
|
|
1109 | ev_printerr (": "); |
|
|
1110 | ev_printerr (strerror (errno)); |
|
|
1111 | ev_printerr ("\n"); |
|
|
1112 | #else |
547 | perror (msg); |
1113 | perror (msg); |
|
|
1114 | #endif |
548 | abort (); |
1115 | abort (); |
549 | } |
1116 | } |
550 | } |
1117 | } |
551 | |
1118 | |
552 | static void * |
1119 | static void * |
553 | ev_realloc_emul (void *ptr, long size) |
1120 | ev_realloc_emul (void *ptr, long size) |
554 | { |
1121 | { |
|
|
1122 | #if __GLIBC__ |
|
|
1123 | return realloc (ptr, size); |
|
|
1124 | #else |
555 | /* some systems, notably openbsd and darwin, fail to properly |
1125 | /* some systems, notably openbsd and darwin, fail to properly |
556 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1126 | * implement realloc (x, 0) (as required by both ansi c-89 and |
557 | * the single unix specification, so work around them here. |
1127 | * the single unix specification, so work around them here. |
558 | */ |
1128 | */ |
559 | |
1129 | |
560 | if (size) |
1130 | if (size) |
561 | return realloc (ptr, size); |
1131 | return realloc (ptr, size); |
562 | |
1132 | |
563 | free (ptr); |
1133 | free (ptr); |
564 | return 0; |
1134 | return 0; |
|
|
1135 | #endif |
565 | } |
1136 | } |
566 | |
1137 | |
567 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1138 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
568 | |
1139 | |
569 | void |
1140 | void ecb_cold |
570 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1141 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
571 | { |
1142 | { |
572 | alloc = cb; |
1143 | alloc = cb; |
573 | } |
1144 | } |
574 | |
1145 | |
… | |
… | |
577 | { |
1148 | { |
578 | ptr = alloc (ptr, size); |
1149 | ptr = alloc (ptr, size); |
579 | |
1150 | |
580 | if (!ptr && size) |
1151 | if (!ptr && size) |
581 | { |
1152 | { |
|
|
1153 | #if EV_AVOID_STDIO |
|
|
1154 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1155 | #else |
582 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1156 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1157 | #endif |
583 | abort (); |
1158 | abort (); |
584 | } |
1159 | } |
585 | |
1160 | |
586 | return ptr; |
1161 | return ptr; |
587 | } |
1162 | } |
… | |
… | |
603 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1178 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
604 | unsigned char unused; |
1179 | unsigned char unused; |
605 | #if EV_USE_EPOLL |
1180 | #if EV_USE_EPOLL |
606 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1181 | unsigned int egen; /* generation counter to counter epoll bugs */ |
607 | #endif |
1182 | #endif |
608 | #if EV_SELECT_IS_WINSOCKET |
1183 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
609 | SOCKET handle; |
1184 | SOCKET handle; |
|
|
1185 | #endif |
|
|
1186 | #if EV_USE_IOCP |
|
|
1187 | OVERLAPPED or, ow; |
610 | #endif |
1188 | #endif |
611 | } ANFD; |
1189 | } ANFD; |
612 | |
1190 | |
613 | /* stores the pending event set for a given watcher */ |
1191 | /* stores the pending event set for a given watcher */ |
614 | typedef struct |
1192 | typedef struct |
… | |
… | |
656 | #undef VAR |
1234 | #undef VAR |
657 | }; |
1235 | }; |
658 | #include "ev_wrap.h" |
1236 | #include "ev_wrap.h" |
659 | |
1237 | |
660 | static struct ev_loop default_loop_struct; |
1238 | static struct ev_loop default_loop_struct; |
661 | struct ev_loop *ev_default_loop_ptr; |
1239 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
662 | |
1240 | |
663 | #else |
1241 | #else |
664 | |
1242 | |
665 | ev_tstamp ev_rt_now; |
1243 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
666 | #define VAR(name,decl) static decl; |
1244 | #define VAR(name,decl) static decl; |
667 | #include "ev_vars.h" |
1245 | #include "ev_vars.h" |
668 | #undef VAR |
1246 | #undef VAR |
669 | |
1247 | |
670 | static int ev_default_loop_ptr; |
1248 | static int ev_default_loop_ptr; |
671 | |
1249 | |
672 | #endif |
1250 | #endif |
673 | |
1251 | |
674 | #if EV_MINIMAL < 2 |
1252 | #if EV_FEATURE_API |
675 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1253 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
676 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1254 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
677 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1255 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
678 | #else |
1256 | #else |
679 | # define EV_RELEASE_CB (void)0 |
1257 | # define EV_RELEASE_CB (void)0 |
680 | # define EV_ACQUIRE_CB (void)0 |
1258 | # define EV_ACQUIRE_CB (void)0 |
681 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1259 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
682 | #endif |
1260 | #endif |
683 | |
1261 | |
684 | #define EVUNLOOP_RECURSE 0x80 |
1262 | #define EVBREAK_RECURSE 0x80 |
685 | |
1263 | |
686 | /*****************************************************************************/ |
1264 | /*****************************************************************************/ |
687 | |
1265 | |
688 | #ifndef EV_HAVE_EV_TIME |
1266 | #ifndef EV_HAVE_EV_TIME |
689 | ev_tstamp |
1267 | ev_tstamp |
… | |
… | |
733 | if (delay > 0.) |
1311 | if (delay > 0.) |
734 | { |
1312 | { |
735 | #if EV_USE_NANOSLEEP |
1313 | #if EV_USE_NANOSLEEP |
736 | struct timespec ts; |
1314 | struct timespec ts; |
737 | |
1315 | |
738 | ts.tv_sec = (time_t)delay; |
1316 | EV_TS_SET (ts, delay); |
739 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
740 | |
|
|
741 | nanosleep (&ts, 0); |
1317 | nanosleep (&ts, 0); |
742 | #elif defined(_WIN32) |
1318 | #elif defined(_WIN32) |
743 | Sleep ((unsigned long)(delay * 1e3)); |
1319 | Sleep ((unsigned long)(delay * 1e3)); |
744 | #else |
1320 | #else |
745 | struct timeval tv; |
1321 | struct timeval tv; |
746 | |
1322 | |
747 | tv.tv_sec = (time_t)delay; |
|
|
748 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
749 | |
|
|
750 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1323 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
751 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1324 | /* something not guaranteed by newer posix versions, but guaranteed */ |
752 | /* by older ones */ |
1325 | /* by older ones */ |
|
|
1326 | EV_TV_SET (tv, delay); |
753 | select (0, 0, 0, 0, &tv); |
1327 | select (0, 0, 0, 0, &tv); |
754 | #endif |
1328 | #endif |
755 | } |
1329 | } |
756 | } |
1330 | } |
757 | |
1331 | |
758 | /*****************************************************************************/ |
1332 | /*****************************************************************************/ |
759 | |
1333 | |
760 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1334 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
761 | |
1335 | |
762 | /* find a suitable new size for the given array, */ |
1336 | /* find a suitable new size for the given array, */ |
763 | /* hopefully by rounding to a ncie-to-malloc size */ |
1337 | /* hopefully by rounding to a nice-to-malloc size */ |
764 | inline_size int |
1338 | inline_size int |
765 | array_nextsize (int elem, int cur, int cnt) |
1339 | array_nextsize (int elem, int cur, int cnt) |
766 | { |
1340 | { |
767 | int ncur = cur + 1; |
1341 | int ncur = cur + 1; |
768 | |
1342 | |
769 | do |
1343 | do |
770 | ncur <<= 1; |
1344 | ncur <<= 1; |
771 | while (cnt > ncur); |
1345 | while (cnt > ncur); |
772 | |
1346 | |
773 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1347 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
774 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1348 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
775 | { |
1349 | { |
776 | ncur *= elem; |
1350 | ncur *= elem; |
777 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1351 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
778 | ncur = ncur - sizeof (void *) * 4; |
1352 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
780 | } |
1354 | } |
781 | |
1355 | |
782 | return ncur; |
1356 | return ncur; |
783 | } |
1357 | } |
784 | |
1358 | |
785 | static noinline void * |
1359 | static void * noinline ecb_cold |
786 | array_realloc (int elem, void *base, int *cur, int cnt) |
1360 | array_realloc (int elem, void *base, int *cur, int cnt) |
787 | { |
1361 | { |
788 | *cur = array_nextsize (elem, *cur, cnt); |
1362 | *cur = array_nextsize (elem, *cur, cnt); |
789 | return ev_realloc (base, elem * *cur); |
1363 | return ev_realloc (base, elem * *cur); |
790 | } |
1364 | } |
… | |
… | |
793 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1367 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
794 | |
1368 | |
795 | #define array_needsize(type,base,cur,cnt,init) \ |
1369 | #define array_needsize(type,base,cur,cnt,init) \ |
796 | if (expect_false ((cnt) > (cur))) \ |
1370 | if (expect_false ((cnt) > (cur))) \ |
797 | { \ |
1371 | { \ |
798 | int ocur_ = (cur); \ |
1372 | int ecb_unused ocur_ = (cur); \ |
799 | (base) = (type *)array_realloc \ |
1373 | (base) = (type *)array_realloc \ |
800 | (sizeof (type), (base), &(cur), (cnt)); \ |
1374 | (sizeof (type), (base), &(cur), (cnt)); \ |
801 | init ((base) + (ocur_), (cur) - ocur_); \ |
1375 | init ((base) + (ocur_), (cur) - ocur_); \ |
802 | } |
1376 | } |
803 | |
1377 | |
… | |
… | |
864 | } |
1438 | } |
865 | |
1439 | |
866 | /*****************************************************************************/ |
1440 | /*****************************************************************************/ |
867 | |
1441 | |
868 | inline_speed void |
1442 | inline_speed void |
869 | fd_event_nc (EV_P_ int fd, int revents) |
1443 | fd_event_nocheck (EV_P_ int fd, int revents) |
870 | { |
1444 | { |
871 | ANFD *anfd = anfds + fd; |
1445 | ANFD *anfd = anfds + fd; |
872 | ev_io *w; |
1446 | ev_io *w; |
873 | |
1447 | |
874 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1448 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
886 | fd_event (EV_P_ int fd, int revents) |
1460 | fd_event (EV_P_ int fd, int revents) |
887 | { |
1461 | { |
888 | ANFD *anfd = anfds + fd; |
1462 | ANFD *anfd = anfds + fd; |
889 | |
1463 | |
890 | if (expect_true (!anfd->reify)) |
1464 | if (expect_true (!anfd->reify)) |
891 | fd_event_nc (EV_A_ fd, revents); |
1465 | fd_event_nocheck (EV_A_ fd, revents); |
892 | } |
1466 | } |
893 | |
1467 | |
894 | void |
1468 | void |
895 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1469 | ev_feed_fd_event (EV_P_ int fd, int revents) |
896 | { |
1470 | { |
897 | if (fd >= 0 && fd < anfdmax) |
1471 | if (fd >= 0 && fd < anfdmax) |
898 | fd_event_nc (EV_A_ fd, revents); |
1472 | fd_event_nocheck (EV_A_ fd, revents); |
899 | } |
1473 | } |
900 | |
1474 | |
901 | /* make sure the external fd watch events are in-sync */ |
1475 | /* make sure the external fd watch events are in-sync */ |
902 | /* with the kernel/libev internal state */ |
1476 | /* with the kernel/libev internal state */ |
903 | inline_size void |
1477 | inline_size void |
904 | fd_reify (EV_P) |
1478 | fd_reify (EV_P) |
905 | { |
1479 | { |
906 | int i; |
1480 | int i; |
907 | |
1481 | |
|
|
1482 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1483 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1484 | { |
|
|
1485 | int fd = fdchanges [i]; |
|
|
1486 | ANFD *anfd = anfds + fd; |
|
|
1487 | |
|
|
1488 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1489 | { |
|
|
1490 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1491 | |
|
|
1492 | if (handle != anfd->handle) |
|
|
1493 | { |
|
|
1494 | unsigned long arg; |
|
|
1495 | |
|
|
1496 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1497 | |
|
|
1498 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1499 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1500 | anfd->events = 0; |
|
|
1501 | anfd->handle = handle; |
|
|
1502 | } |
|
|
1503 | } |
|
|
1504 | } |
|
|
1505 | #endif |
|
|
1506 | |
908 | for (i = 0; i < fdchangecnt; ++i) |
1507 | for (i = 0; i < fdchangecnt; ++i) |
909 | { |
1508 | { |
910 | int fd = fdchanges [i]; |
1509 | int fd = fdchanges [i]; |
911 | ANFD *anfd = anfds + fd; |
1510 | ANFD *anfd = anfds + fd; |
912 | ev_io *w; |
1511 | ev_io *w; |
913 | |
1512 | |
914 | unsigned char events = 0; |
1513 | unsigned char o_events = anfd->events; |
|
|
1514 | unsigned char o_reify = anfd->reify; |
915 | |
1515 | |
916 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1516 | anfd->reify = 0; |
917 | events |= (unsigned char)w->events; |
|
|
918 | |
1517 | |
919 | #if EV_SELECT_IS_WINSOCKET |
1518 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
920 | if (events) |
|
|
921 | { |
1519 | { |
922 | unsigned long arg; |
1520 | anfd->events = 0; |
923 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1521 | |
924 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1522 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1523 | anfd->events |= (unsigned char)w->events; |
|
|
1524 | |
|
|
1525 | if (o_events != anfd->events) |
|
|
1526 | o_reify = EV__IOFDSET; /* actually |= */ |
925 | } |
1527 | } |
926 | #endif |
|
|
927 | |
1528 | |
928 | { |
1529 | if (o_reify & EV__IOFDSET) |
929 | unsigned char o_events = anfd->events; |
|
|
930 | unsigned char o_reify = anfd->reify; |
|
|
931 | |
|
|
932 | anfd->reify = 0; |
|
|
933 | anfd->events = events; |
|
|
934 | |
|
|
935 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
936 | backend_modify (EV_A_ fd, o_events, events); |
1530 | backend_modify (EV_A_ fd, o_events, anfd->events); |
937 | } |
|
|
938 | } |
1531 | } |
939 | |
1532 | |
940 | fdchangecnt = 0; |
1533 | fdchangecnt = 0; |
941 | } |
1534 | } |
942 | |
1535 | |
… | |
… | |
954 | fdchanges [fdchangecnt - 1] = fd; |
1547 | fdchanges [fdchangecnt - 1] = fd; |
955 | } |
1548 | } |
956 | } |
1549 | } |
957 | |
1550 | |
958 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1551 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
959 | inline_speed void |
1552 | inline_speed void ecb_cold |
960 | fd_kill (EV_P_ int fd) |
1553 | fd_kill (EV_P_ int fd) |
961 | { |
1554 | { |
962 | ev_io *w; |
1555 | ev_io *w; |
963 | |
1556 | |
964 | while ((w = (ev_io *)anfds [fd].head)) |
1557 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
966 | ev_io_stop (EV_A_ w); |
1559 | ev_io_stop (EV_A_ w); |
967 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1560 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
968 | } |
1561 | } |
969 | } |
1562 | } |
970 | |
1563 | |
971 | /* check whether the given fd is atcually valid, for error recovery */ |
1564 | /* check whether the given fd is actually valid, for error recovery */ |
972 | inline_size int |
1565 | inline_size int ecb_cold |
973 | fd_valid (int fd) |
1566 | fd_valid (int fd) |
974 | { |
1567 | { |
975 | #ifdef _WIN32 |
1568 | #ifdef _WIN32 |
976 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1569 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
977 | #else |
1570 | #else |
978 | return fcntl (fd, F_GETFD) != -1; |
1571 | return fcntl (fd, F_GETFD) != -1; |
979 | #endif |
1572 | #endif |
980 | } |
1573 | } |
981 | |
1574 | |
982 | /* called on EBADF to verify fds */ |
1575 | /* called on EBADF to verify fds */ |
983 | static void noinline |
1576 | static void noinline ecb_cold |
984 | fd_ebadf (EV_P) |
1577 | fd_ebadf (EV_P) |
985 | { |
1578 | { |
986 | int fd; |
1579 | int fd; |
987 | |
1580 | |
988 | for (fd = 0; fd < anfdmax; ++fd) |
1581 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
990 | if (!fd_valid (fd) && errno == EBADF) |
1583 | if (!fd_valid (fd) && errno == EBADF) |
991 | fd_kill (EV_A_ fd); |
1584 | fd_kill (EV_A_ fd); |
992 | } |
1585 | } |
993 | |
1586 | |
994 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1587 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
995 | static void noinline |
1588 | static void noinline ecb_cold |
996 | fd_enomem (EV_P) |
1589 | fd_enomem (EV_P) |
997 | { |
1590 | { |
998 | int fd; |
1591 | int fd; |
999 | |
1592 | |
1000 | for (fd = anfdmax; fd--; ) |
1593 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1018 | anfds [fd].emask = 0; |
1611 | anfds [fd].emask = 0; |
1019 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1612 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1020 | } |
1613 | } |
1021 | } |
1614 | } |
1022 | |
1615 | |
|
|
1616 | /* used to prepare libev internal fd's */ |
|
|
1617 | /* this is not fork-safe */ |
|
|
1618 | inline_speed void |
|
|
1619 | fd_intern (int fd) |
|
|
1620 | { |
|
|
1621 | #ifdef _WIN32 |
|
|
1622 | unsigned long arg = 1; |
|
|
1623 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1624 | #else |
|
|
1625 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1626 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1627 | #endif |
|
|
1628 | } |
|
|
1629 | |
1023 | /*****************************************************************************/ |
1630 | /*****************************************************************************/ |
1024 | |
1631 | |
1025 | /* |
1632 | /* |
1026 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1633 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1027 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1634 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1028 | * the branching factor of the d-tree. |
1635 | * the branching factor of the d-tree. |
1029 | */ |
1636 | */ |
1030 | |
1637 | |
1031 | /* |
1638 | /* |
… | |
… | |
1179 | |
1786 | |
1180 | static ANSIG signals [EV_NSIG - 1]; |
1787 | static ANSIG signals [EV_NSIG - 1]; |
1181 | |
1788 | |
1182 | /*****************************************************************************/ |
1789 | /*****************************************************************************/ |
1183 | |
1790 | |
1184 | /* used to prepare libev internal fd's */ |
1791 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1185 | /* this is not fork-safe */ |
|
|
1186 | inline_speed void |
|
|
1187 | fd_intern (int fd) |
|
|
1188 | { |
|
|
1189 | #ifdef _WIN32 |
|
|
1190 | unsigned long arg = 1; |
|
|
1191 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1192 | #else |
|
|
1193 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1194 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1195 | #endif |
|
|
1196 | } |
|
|
1197 | |
1792 | |
1198 | static void noinline |
1793 | static void noinline ecb_cold |
1199 | evpipe_init (EV_P) |
1794 | evpipe_init (EV_P) |
1200 | { |
1795 | { |
1201 | if (!ev_is_active (&pipe_w)) |
1796 | if (!ev_is_active (&pipe_w)) |
1202 | { |
1797 | { |
1203 | #if EV_USE_EVENTFD |
1798 | # if EV_USE_EVENTFD |
1204 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1799 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1205 | if (evfd < 0 && errno == EINVAL) |
1800 | if (evfd < 0 && errno == EINVAL) |
1206 | evfd = eventfd (0, 0); |
1801 | evfd = eventfd (0, 0); |
1207 | |
1802 | |
1208 | if (evfd >= 0) |
1803 | if (evfd >= 0) |
… | |
… | |
1210 | evpipe [0] = -1; |
1805 | evpipe [0] = -1; |
1211 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1806 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1212 | ev_io_set (&pipe_w, evfd, EV_READ); |
1807 | ev_io_set (&pipe_w, evfd, EV_READ); |
1213 | } |
1808 | } |
1214 | else |
1809 | else |
1215 | #endif |
1810 | # endif |
1216 | { |
1811 | { |
1217 | while (pipe (evpipe)) |
1812 | while (pipe (evpipe)) |
1218 | ev_syserr ("(libev) error creating signal/async pipe"); |
1813 | ev_syserr ("(libev) error creating signal/async pipe"); |
1219 | |
1814 | |
1220 | fd_intern (evpipe [0]); |
1815 | fd_intern (evpipe [0]); |
… | |
… | |
1225 | ev_io_start (EV_A_ &pipe_w); |
1820 | ev_io_start (EV_A_ &pipe_w); |
1226 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1821 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1227 | } |
1822 | } |
1228 | } |
1823 | } |
1229 | |
1824 | |
1230 | inline_size void |
1825 | inline_speed void |
1231 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1826 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1232 | { |
1827 | { |
1233 | if (!*flag) |
1828 | if (expect_true (*flag)) |
|
|
1829 | return; |
|
|
1830 | |
|
|
1831 | *flag = 1; |
|
|
1832 | |
|
|
1833 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1834 | |
|
|
1835 | pipe_write_skipped = 1; |
|
|
1836 | |
|
|
1837 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1838 | |
|
|
1839 | if (pipe_write_wanted) |
1234 | { |
1840 | { |
|
|
1841 | int old_errno; |
|
|
1842 | |
|
|
1843 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1844 | |
1235 | int old_errno = errno; /* save errno because write might clobber it */ |
1845 | old_errno = errno; /* save errno because write will clobber it */ |
1236 | |
|
|
1237 | *flag = 1; |
|
|
1238 | |
1846 | |
1239 | #if EV_USE_EVENTFD |
1847 | #if EV_USE_EVENTFD |
1240 | if (evfd >= 0) |
1848 | if (evfd >= 0) |
1241 | { |
1849 | { |
1242 | uint64_t counter = 1; |
1850 | uint64_t counter = 1; |
1243 | write (evfd, &counter, sizeof (uint64_t)); |
1851 | write (evfd, &counter, sizeof (uint64_t)); |
1244 | } |
1852 | } |
1245 | else |
1853 | else |
1246 | #endif |
1854 | #endif |
|
|
1855 | { |
|
|
1856 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1857 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1858 | /* so when you think this write should be a send instead, please find out */ |
|
|
1859 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1860 | /* tell me. thank you. */ |
1247 | write (evpipe [1], &old_errno, 1); |
1861 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1862 | } |
1248 | |
1863 | |
1249 | errno = old_errno; |
1864 | errno = old_errno; |
1250 | } |
1865 | } |
1251 | } |
1866 | } |
1252 | |
1867 | |
… | |
… | |
1255 | static void |
1870 | static void |
1256 | pipecb (EV_P_ ev_io *iow, int revents) |
1871 | pipecb (EV_P_ ev_io *iow, int revents) |
1257 | { |
1872 | { |
1258 | int i; |
1873 | int i; |
1259 | |
1874 | |
|
|
1875 | if (revents & EV_READ) |
|
|
1876 | { |
1260 | #if EV_USE_EVENTFD |
1877 | #if EV_USE_EVENTFD |
1261 | if (evfd >= 0) |
1878 | if (evfd >= 0) |
1262 | { |
1879 | { |
1263 | uint64_t counter; |
1880 | uint64_t counter; |
1264 | read (evfd, &counter, sizeof (uint64_t)); |
1881 | read (evfd, &counter, sizeof (uint64_t)); |
1265 | } |
1882 | } |
1266 | else |
1883 | else |
1267 | #endif |
1884 | #endif |
1268 | { |
1885 | { |
1269 | char dummy; |
1886 | char dummy; |
|
|
1887 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1270 | read (evpipe [0], &dummy, 1); |
1888 | read (evpipe [0], &dummy, 1); |
|
|
1889 | } |
1271 | } |
1890 | } |
1272 | |
1891 | |
|
|
1892 | pipe_write_skipped = 0; |
|
|
1893 | |
|
|
1894 | #if EV_SIGNAL_ENABLE |
1273 | if (sig_pending) |
1895 | if (sig_pending) |
1274 | { |
1896 | { |
1275 | sig_pending = 0; |
1897 | sig_pending = 0; |
1276 | |
1898 | |
1277 | for (i = EV_NSIG - 1; i--; ) |
1899 | for (i = EV_NSIG - 1; i--; ) |
1278 | if (expect_false (signals [i].pending)) |
1900 | if (expect_false (signals [i].pending)) |
1279 | ev_feed_signal_event (EV_A_ i + 1); |
1901 | ev_feed_signal_event (EV_A_ i + 1); |
1280 | } |
1902 | } |
|
|
1903 | #endif |
1281 | |
1904 | |
1282 | #if EV_ASYNC_ENABLE |
1905 | #if EV_ASYNC_ENABLE |
1283 | if (async_pending) |
1906 | if (async_pending) |
1284 | { |
1907 | { |
1285 | async_pending = 0; |
1908 | async_pending = 0; |
… | |
… | |
1294 | #endif |
1917 | #endif |
1295 | } |
1918 | } |
1296 | |
1919 | |
1297 | /*****************************************************************************/ |
1920 | /*****************************************************************************/ |
1298 | |
1921 | |
|
|
1922 | void |
|
|
1923 | ev_feed_signal (int signum) |
|
|
1924 | { |
|
|
1925 | #if EV_MULTIPLICITY |
|
|
1926 | EV_P = signals [signum - 1].loop; |
|
|
1927 | |
|
|
1928 | if (!EV_A) |
|
|
1929 | return; |
|
|
1930 | #endif |
|
|
1931 | |
|
|
1932 | if (!ev_active (&pipe_w)) |
|
|
1933 | return; |
|
|
1934 | |
|
|
1935 | signals [signum - 1].pending = 1; |
|
|
1936 | evpipe_write (EV_A_ &sig_pending); |
|
|
1937 | } |
|
|
1938 | |
1299 | static void |
1939 | static void |
1300 | ev_sighandler (int signum) |
1940 | ev_sighandler (int signum) |
1301 | { |
1941 | { |
1302 | #if EV_MULTIPLICITY |
|
|
1303 | EV_P = signals [signum - 1].loop; |
|
|
1304 | #endif |
|
|
1305 | |
|
|
1306 | #ifdef _WIN32 |
1942 | #ifdef _WIN32 |
1307 | signal (signum, ev_sighandler); |
1943 | signal (signum, ev_sighandler); |
1308 | #endif |
1944 | #endif |
1309 | |
1945 | |
1310 | signals [signum - 1].pending = 1; |
1946 | ev_feed_signal (signum); |
1311 | evpipe_write (EV_A_ &sig_pending); |
|
|
1312 | } |
1947 | } |
1313 | |
1948 | |
1314 | void noinline |
1949 | void noinline |
1315 | ev_feed_signal_event (EV_P_ int signum) |
1950 | ev_feed_signal_event (EV_P_ int signum) |
1316 | { |
1951 | { |
… | |
… | |
1353 | break; |
1988 | break; |
1354 | } |
1989 | } |
1355 | } |
1990 | } |
1356 | #endif |
1991 | #endif |
1357 | |
1992 | |
|
|
1993 | #endif |
|
|
1994 | |
1358 | /*****************************************************************************/ |
1995 | /*****************************************************************************/ |
1359 | |
1996 | |
|
|
1997 | #if EV_CHILD_ENABLE |
1360 | static WL childs [EV_PID_HASHSIZE]; |
1998 | static WL childs [EV_PID_HASHSIZE]; |
1361 | |
|
|
1362 | #ifndef _WIN32 |
|
|
1363 | |
1999 | |
1364 | static ev_signal childev; |
2000 | static ev_signal childev; |
1365 | |
2001 | |
1366 | #ifndef WIFCONTINUED |
2002 | #ifndef WIFCONTINUED |
1367 | # define WIFCONTINUED(status) 0 |
2003 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1372 | child_reap (EV_P_ int chain, int pid, int status) |
2008 | child_reap (EV_P_ int chain, int pid, int status) |
1373 | { |
2009 | { |
1374 | ev_child *w; |
2010 | ev_child *w; |
1375 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2011 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1376 | |
2012 | |
1377 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2013 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1378 | { |
2014 | { |
1379 | if ((w->pid == pid || !w->pid) |
2015 | if ((w->pid == pid || !w->pid) |
1380 | && (!traced || (w->flags & 1))) |
2016 | && (!traced || (w->flags & 1))) |
1381 | { |
2017 | { |
1382 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2018 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1407 | /* make sure we are called again until all children have been reaped */ |
2043 | /* make sure we are called again until all children have been reaped */ |
1408 | /* we need to do it this way so that the callback gets called before we continue */ |
2044 | /* we need to do it this way so that the callback gets called before we continue */ |
1409 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2045 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1410 | |
2046 | |
1411 | child_reap (EV_A_ pid, pid, status); |
2047 | child_reap (EV_A_ pid, pid, status); |
1412 | if (EV_PID_HASHSIZE > 1) |
2048 | if ((EV_PID_HASHSIZE) > 1) |
1413 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2049 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1414 | } |
2050 | } |
1415 | |
2051 | |
1416 | #endif |
2052 | #endif |
1417 | |
2053 | |
1418 | /*****************************************************************************/ |
2054 | /*****************************************************************************/ |
1419 | |
2055 | |
|
|
2056 | #if EV_USE_IOCP |
|
|
2057 | # include "ev_iocp.c" |
|
|
2058 | #endif |
1420 | #if EV_USE_PORT |
2059 | #if EV_USE_PORT |
1421 | # include "ev_port.c" |
2060 | # include "ev_port.c" |
1422 | #endif |
2061 | #endif |
1423 | #if EV_USE_KQUEUE |
2062 | #if EV_USE_KQUEUE |
1424 | # include "ev_kqueue.c" |
2063 | # include "ev_kqueue.c" |
… | |
… | |
1431 | #endif |
2070 | #endif |
1432 | #if EV_USE_SELECT |
2071 | #if EV_USE_SELECT |
1433 | # include "ev_select.c" |
2072 | # include "ev_select.c" |
1434 | #endif |
2073 | #endif |
1435 | |
2074 | |
1436 | int |
2075 | int ecb_cold |
1437 | ev_version_major (void) |
2076 | ev_version_major (void) |
1438 | { |
2077 | { |
1439 | return EV_VERSION_MAJOR; |
2078 | return EV_VERSION_MAJOR; |
1440 | } |
2079 | } |
1441 | |
2080 | |
1442 | int |
2081 | int ecb_cold |
1443 | ev_version_minor (void) |
2082 | ev_version_minor (void) |
1444 | { |
2083 | { |
1445 | return EV_VERSION_MINOR; |
2084 | return EV_VERSION_MINOR; |
1446 | } |
2085 | } |
1447 | |
2086 | |
1448 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2087 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1449 | int inline_size |
2088 | int inline_size ecb_cold |
1450 | enable_secure (void) |
2089 | enable_secure (void) |
1451 | { |
2090 | { |
1452 | #ifdef _WIN32 |
2091 | #ifdef _WIN32 |
1453 | return 0; |
2092 | return 0; |
1454 | #else |
2093 | #else |
1455 | return getuid () != geteuid () |
2094 | return getuid () != geteuid () |
1456 | || getgid () != getegid (); |
2095 | || getgid () != getegid (); |
1457 | #endif |
2096 | #endif |
1458 | } |
2097 | } |
1459 | |
2098 | |
1460 | unsigned int |
2099 | unsigned int ecb_cold |
1461 | ev_supported_backends (void) |
2100 | ev_supported_backends (void) |
1462 | { |
2101 | { |
1463 | unsigned int flags = 0; |
2102 | unsigned int flags = 0; |
1464 | |
2103 | |
1465 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2104 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1469 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2108 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1470 | |
2109 | |
1471 | return flags; |
2110 | return flags; |
1472 | } |
2111 | } |
1473 | |
2112 | |
1474 | unsigned int |
2113 | unsigned int ecb_cold |
1475 | ev_recommended_backends (void) |
2114 | ev_recommended_backends (void) |
1476 | { |
2115 | { |
1477 | unsigned int flags = ev_supported_backends (); |
2116 | unsigned int flags = ev_supported_backends (); |
1478 | |
2117 | |
1479 | #ifndef __NetBSD__ |
2118 | #ifndef __NetBSD__ |
… | |
… | |
1484 | #ifdef __APPLE__ |
2123 | #ifdef __APPLE__ |
1485 | /* only select works correctly on that "unix-certified" platform */ |
2124 | /* only select works correctly on that "unix-certified" platform */ |
1486 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2125 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1487 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2126 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1488 | #endif |
2127 | #endif |
|
|
2128 | #ifdef __FreeBSD__ |
|
|
2129 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2130 | #endif |
1489 | |
2131 | |
1490 | return flags; |
2132 | return flags; |
1491 | } |
2133 | } |
1492 | |
2134 | |
1493 | unsigned int |
2135 | unsigned int ecb_cold |
1494 | ev_embeddable_backends (void) |
2136 | ev_embeddable_backends (void) |
1495 | { |
2137 | { |
1496 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2138 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1497 | |
2139 | |
1498 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2140 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1499 | /* please fix it and tell me how to detect the fix */ |
2141 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1500 | flags &= ~EVBACKEND_EPOLL; |
2142 | flags &= ~EVBACKEND_EPOLL; |
1501 | |
2143 | |
1502 | return flags; |
2144 | return flags; |
1503 | } |
2145 | } |
1504 | |
2146 | |
1505 | unsigned int |
2147 | unsigned int |
1506 | ev_backend (EV_P) |
2148 | ev_backend (EV_P) |
1507 | { |
2149 | { |
1508 | return backend; |
2150 | return backend; |
1509 | } |
2151 | } |
1510 | |
2152 | |
1511 | #if EV_MINIMAL < 2 |
2153 | #if EV_FEATURE_API |
1512 | unsigned int |
2154 | unsigned int |
1513 | ev_loop_count (EV_P) |
2155 | ev_iteration (EV_P) |
1514 | { |
2156 | { |
1515 | return loop_count; |
2157 | return loop_count; |
1516 | } |
2158 | } |
1517 | |
2159 | |
1518 | unsigned int |
2160 | unsigned int |
1519 | ev_loop_depth (EV_P) |
2161 | ev_depth (EV_P) |
1520 | { |
2162 | { |
1521 | return loop_depth; |
2163 | return loop_depth; |
1522 | } |
2164 | } |
1523 | |
2165 | |
1524 | void |
2166 | void |
… | |
… | |
1543 | ev_userdata (EV_P) |
2185 | ev_userdata (EV_P) |
1544 | { |
2186 | { |
1545 | return userdata; |
2187 | return userdata; |
1546 | } |
2188 | } |
1547 | |
2189 | |
|
|
2190 | void |
1548 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2191 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1549 | { |
2192 | { |
1550 | invoke_cb = invoke_pending_cb; |
2193 | invoke_cb = invoke_pending_cb; |
1551 | } |
2194 | } |
1552 | |
2195 | |
|
|
2196 | void |
1553 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2197 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
1554 | { |
2198 | { |
1555 | release_cb = release; |
2199 | release_cb = release; |
1556 | acquire_cb = acquire; |
2200 | acquire_cb = acquire; |
1557 | } |
2201 | } |
1558 | #endif |
2202 | #endif |
1559 | |
2203 | |
1560 | /* initialise a loop structure, must be zero-initialised */ |
2204 | /* initialise a loop structure, must be zero-initialised */ |
1561 | static void noinline |
2205 | static void noinline ecb_cold |
1562 | loop_init (EV_P_ unsigned int flags) |
2206 | loop_init (EV_P_ unsigned int flags) |
1563 | { |
2207 | { |
1564 | if (!backend) |
2208 | if (!backend) |
1565 | { |
2209 | { |
|
|
2210 | origflags = flags; |
|
|
2211 | |
1566 | #if EV_USE_REALTIME |
2212 | #if EV_USE_REALTIME |
1567 | if (!have_realtime) |
2213 | if (!have_realtime) |
1568 | { |
2214 | { |
1569 | struct timespec ts; |
2215 | struct timespec ts; |
1570 | |
2216 | |
… | |
… | |
1592 | if (!(flags & EVFLAG_NOENV) |
2238 | if (!(flags & EVFLAG_NOENV) |
1593 | && !enable_secure () |
2239 | && !enable_secure () |
1594 | && getenv ("LIBEV_FLAGS")) |
2240 | && getenv ("LIBEV_FLAGS")) |
1595 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2241 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1596 | |
2242 | |
1597 | ev_rt_now = ev_time (); |
2243 | ev_rt_now = ev_time (); |
1598 | mn_now = get_clock (); |
2244 | mn_now = get_clock (); |
1599 | now_floor = mn_now; |
2245 | now_floor = mn_now; |
1600 | rtmn_diff = ev_rt_now - mn_now; |
2246 | rtmn_diff = ev_rt_now - mn_now; |
1601 | #if EV_MINIMAL < 2 |
2247 | #if EV_FEATURE_API |
1602 | invoke_cb = ev_invoke_pending; |
2248 | invoke_cb = ev_invoke_pending; |
1603 | #endif |
2249 | #endif |
1604 | |
2250 | |
1605 | io_blocktime = 0.; |
2251 | io_blocktime = 0.; |
1606 | timeout_blocktime = 0.; |
2252 | timeout_blocktime = 0.; |
1607 | backend = 0; |
2253 | backend = 0; |
1608 | backend_fd = -1; |
2254 | backend_fd = -1; |
1609 | sig_pending = 0; |
2255 | sig_pending = 0; |
1610 | #if EV_ASYNC_ENABLE |
2256 | #if EV_ASYNC_ENABLE |
1611 | async_pending = 0; |
2257 | async_pending = 0; |
1612 | #endif |
2258 | #endif |
|
|
2259 | pipe_write_skipped = 0; |
|
|
2260 | pipe_write_wanted = 0; |
1613 | #if EV_USE_INOTIFY |
2261 | #if EV_USE_INOTIFY |
1614 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2262 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1615 | #endif |
2263 | #endif |
1616 | #if EV_USE_SIGNALFD |
2264 | #if EV_USE_SIGNALFD |
1617 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2265 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1618 | #endif |
2266 | #endif |
1619 | |
2267 | |
1620 | if (!(flags & 0x0000ffffU)) |
2268 | if (!(flags & EVBACKEND_MASK)) |
1621 | flags |= ev_recommended_backends (); |
2269 | flags |= ev_recommended_backends (); |
1622 | |
2270 | |
|
|
2271 | #if EV_USE_IOCP |
|
|
2272 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2273 | #endif |
1623 | #if EV_USE_PORT |
2274 | #if EV_USE_PORT |
1624 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2275 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1625 | #endif |
2276 | #endif |
1626 | #if EV_USE_KQUEUE |
2277 | #if EV_USE_KQUEUE |
1627 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2278 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1636 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2287 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1637 | #endif |
2288 | #endif |
1638 | |
2289 | |
1639 | ev_prepare_init (&pending_w, pendingcb); |
2290 | ev_prepare_init (&pending_w, pendingcb); |
1640 | |
2291 | |
|
|
2292 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1641 | ev_init (&pipe_w, pipecb); |
2293 | ev_init (&pipe_w, pipecb); |
1642 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2294 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2295 | #endif |
1643 | } |
2296 | } |
1644 | } |
2297 | } |
1645 | |
2298 | |
1646 | /* free up a loop structure */ |
2299 | /* free up a loop structure */ |
1647 | static void noinline |
2300 | void ecb_cold |
1648 | loop_destroy (EV_P) |
2301 | ev_loop_destroy (EV_P) |
1649 | { |
2302 | { |
1650 | int i; |
2303 | int i; |
|
|
2304 | |
|
|
2305 | #if EV_MULTIPLICITY |
|
|
2306 | /* mimic free (0) */ |
|
|
2307 | if (!EV_A) |
|
|
2308 | return; |
|
|
2309 | #endif |
|
|
2310 | |
|
|
2311 | #if EV_CLEANUP_ENABLE |
|
|
2312 | /* queue cleanup watchers (and execute them) */ |
|
|
2313 | if (expect_false (cleanupcnt)) |
|
|
2314 | { |
|
|
2315 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2316 | EV_INVOKE_PENDING; |
|
|
2317 | } |
|
|
2318 | #endif |
|
|
2319 | |
|
|
2320 | #if EV_CHILD_ENABLE |
|
|
2321 | if (ev_is_active (&childev)) |
|
|
2322 | { |
|
|
2323 | ev_ref (EV_A); /* child watcher */ |
|
|
2324 | ev_signal_stop (EV_A_ &childev); |
|
|
2325 | } |
|
|
2326 | #endif |
1651 | |
2327 | |
1652 | if (ev_is_active (&pipe_w)) |
2328 | if (ev_is_active (&pipe_w)) |
1653 | { |
2329 | { |
1654 | /*ev_ref (EV_A);*/ |
2330 | /*ev_ref (EV_A);*/ |
1655 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2331 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1677 | #endif |
2353 | #endif |
1678 | |
2354 | |
1679 | if (backend_fd >= 0) |
2355 | if (backend_fd >= 0) |
1680 | close (backend_fd); |
2356 | close (backend_fd); |
1681 | |
2357 | |
|
|
2358 | #if EV_USE_IOCP |
|
|
2359 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2360 | #endif |
1682 | #if EV_USE_PORT |
2361 | #if EV_USE_PORT |
1683 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2362 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1684 | #endif |
2363 | #endif |
1685 | #if EV_USE_KQUEUE |
2364 | #if EV_USE_KQUEUE |
1686 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2365 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1713 | array_free (periodic, EMPTY); |
2392 | array_free (periodic, EMPTY); |
1714 | #endif |
2393 | #endif |
1715 | #if EV_FORK_ENABLE |
2394 | #if EV_FORK_ENABLE |
1716 | array_free (fork, EMPTY); |
2395 | array_free (fork, EMPTY); |
1717 | #endif |
2396 | #endif |
|
|
2397 | #if EV_CLEANUP_ENABLE |
|
|
2398 | array_free (cleanup, EMPTY); |
|
|
2399 | #endif |
1718 | array_free (prepare, EMPTY); |
2400 | array_free (prepare, EMPTY); |
1719 | array_free (check, EMPTY); |
2401 | array_free (check, EMPTY); |
1720 | #if EV_ASYNC_ENABLE |
2402 | #if EV_ASYNC_ENABLE |
1721 | array_free (async, EMPTY); |
2403 | array_free (async, EMPTY); |
1722 | #endif |
2404 | #endif |
1723 | |
2405 | |
1724 | backend = 0; |
2406 | backend = 0; |
|
|
2407 | |
|
|
2408 | #if EV_MULTIPLICITY |
|
|
2409 | if (ev_is_default_loop (EV_A)) |
|
|
2410 | #endif |
|
|
2411 | ev_default_loop_ptr = 0; |
|
|
2412 | #if EV_MULTIPLICITY |
|
|
2413 | else |
|
|
2414 | ev_free (EV_A); |
|
|
2415 | #endif |
1725 | } |
2416 | } |
1726 | |
2417 | |
1727 | #if EV_USE_INOTIFY |
2418 | #if EV_USE_INOTIFY |
1728 | inline_size void infy_fork (EV_P); |
2419 | inline_size void infy_fork (EV_P); |
1729 | #endif |
2420 | #endif |
… | |
… | |
1744 | infy_fork (EV_A); |
2435 | infy_fork (EV_A); |
1745 | #endif |
2436 | #endif |
1746 | |
2437 | |
1747 | if (ev_is_active (&pipe_w)) |
2438 | if (ev_is_active (&pipe_w)) |
1748 | { |
2439 | { |
1749 | /* this "locks" the handlers against writing to the pipe */ |
2440 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1750 | /* while we modify the fd vars */ |
|
|
1751 | sig_pending = 1; |
|
|
1752 | #if EV_ASYNC_ENABLE |
|
|
1753 | async_pending = 1; |
|
|
1754 | #endif |
|
|
1755 | |
2441 | |
1756 | ev_ref (EV_A); |
2442 | ev_ref (EV_A); |
1757 | ev_io_stop (EV_A_ &pipe_w); |
2443 | ev_io_stop (EV_A_ &pipe_w); |
1758 | |
2444 | |
1759 | #if EV_USE_EVENTFD |
2445 | #if EV_USE_EVENTFD |
… | |
… | |
1765 | { |
2451 | { |
1766 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2452 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1767 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2453 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1768 | } |
2454 | } |
1769 | |
2455 | |
|
|
2456 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1770 | evpipe_init (EV_A); |
2457 | evpipe_init (EV_A); |
1771 | /* now iterate over everything, in case we missed something */ |
2458 | /* now iterate over everything, in case we missed something */ |
1772 | pipecb (EV_A_ &pipe_w, EV_READ); |
2459 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2460 | #endif |
1773 | } |
2461 | } |
1774 | |
2462 | |
1775 | postfork = 0; |
2463 | postfork = 0; |
1776 | } |
2464 | } |
1777 | |
2465 | |
1778 | #if EV_MULTIPLICITY |
2466 | #if EV_MULTIPLICITY |
1779 | |
2467 | |
1780 | struct ev_loop * |
2468 | struct ev_loop * ecb_cold |
1781 | ev_loop_new (unsigned int flags) |
2469 | ev_loop_new (unsigned int flags) |
1782 | { |
2470 | { |
1783 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2471 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1784 | |
2472 | |
1785 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2473 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1786 | loop_init (EV_A_ flags); |
2474 | loop_init (EV_A_ flags); |
1787 | |
2475 | |
1788 | if (ev_backend (EV_A)) |
2476 | if (ev_backend (EV_A)) |
1789 | return EV_A; |
2477 | return EV_A; |
1790 | |
2478 | |
|
|
2479 | ev_free (EV_A); |
1791 | return 0; |
2480 | return 0; |
1792 | } |
2481 | } |
1793 | |
2482 | |
1794 | void |
|
|
1795 | ev_loop_destroy (EV_P) |
|
|
1796 | { |
|
|
1797 | loop_destroy (EV_A); |
|
|
1798 | ev_free (loop); |
|
|
1799 | } |
|
|
1800 | |
|
|
1801 | void |
|
|
1802 | ev_loop_fork (EV_P) |
|
|
1803 | { |
|
|
1804 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1805 | } |
|
|
1806 | #endif /* multiplicity */ |
2483 | #endif /* multiplicity */ |
1807 | |
2484 | |
1808 | #if EV_VERIFY |
2485 | #if EV_VERIFY |
1809 | static void noinline |
2486 | static void noinline ecb_cold |
1810 | verify_watcher (EV_P_ W w) |
2487 | verify_watcher (EV_P_ W w) |
1811 | { |
2488 | { |
1812 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2489 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1813 | |
2490 | |
1814 | if (w->pending) |
2491 | if (w->pending) |
1815 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2492 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1816 | } |
2493 | } |
1817 | |
2494 | |
1818 | static void noinline |
2495 | static void noinline ecb_cold |
1819 | verify_heap (EV_P_ ANHE *heap, int N) |
2496 | verify_heap (EV_P_ ANHE *heap, int N) |
1820 | { |
2497 | { |
1821 | int i; |
2498 | int i; |
1822 | |
2499 | |
1823 | for (i = HEAP0; i < N + HEAP0; ++i) |
2500 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1828 | |
2505 | |
1829 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2506 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1830 | } |
2507 | } |
1831 | } |
2508 | } |
1832 | |
2509 | |
1833 | static void noinline |
2510 | static void noinline ecb_cold |
1834 | array_verify (EV_P_ W *ws, int cnt) |
2511 | array_verify (EV_P_ W *ws, int cnt) |
1835 | { |
2512 | { |
1836 | while (cnt--) |
2513 | while (cnt--) |
1837 | { |
2514 | { |
1838 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2515 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1839 | verify_watcher (EV_A_ ws [cnt]); |
2516 | verify_watcher (EV_A_ ws [cnt]); |
1840 | } |
2517 | } |
1841 | } |
2518 | } |
1842 | #endif |
2519 | #endif |
1843 | |
2520 | |
1844 | #if EV_MINIMAL < 2 |
2521 | #if EV_FEATURE_API |
1845 | void |
2522 | void ecb_cold |
1846 | ev_loop_verify (EV_P) |
2523 | ev_verify (EV_P) |
1847 | { |
2524 | { |
1848 | #if EV_VERIFY |
2525 | #if EV_VERIFY |
1849 | int i; |
2526 | int i; |
1850 | WL w; |
2527 | WL w; |
1851 | |
2528 | |
… | |
… | |
1885 | #if EV_FORK_ENABLE |
2562 | #if EV_FORK_ENABLE |
1886 | assert (forkmax >= forkcnt); |
2563 | assert (forkmax >= forkcnt); |
1887 | array_verify (EV_A_ (W *)forks, forkcnt); |
2564 | array_verify (EV_A_ (W *)forks, forkcnt); |
1888 | #endif |
2565 | #endif |
1889 | |
2566 | |
|
|
2567 | #if EV_CLEANUP_ENABLE |
|
|
2568 | assert (cleanupmax >= cleanupcnt); |
|
|
2569 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2570 | #endif |
|
|
2571 | |
1890 | #if EV_ASYNC_ENABLE |
2572 | #if EV_ASYNC_ENABLE |
1891 | assert (asyncmax >= asynccnt); |
2573 | assert (asyncmax >= asynccnt); |
1892 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2574 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1893 | #endif |
2575 | #endif |
1894 | |
2576 | |
|
|
2577 | #if EV_PREPARE_ENABLE |
1895 | assert (preparemax >= preparecnt); |
2578 | assert (preparemax >= preparecnt); |
1896 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2579 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2580 | #endif |
1897 | |
2581 | |
|
|
2582 | #if EV_CHECK_ENABLE |
1898 | assert (checkmax >= checkcnt); |
2583 | assert (checkmax >= checkcnt); |
1899 | array_verify (EV_A_ (W *)checks, checkcnt); |
2584 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2585 | #endif |
1900 | |
2586 | |
1901 | # if 0 |
2587 | # if 0 |
|
|
2588 | #if EV_CHILD_ENABLE |
1902 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2589 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1903 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
2590 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2591 | #endif |
1904 | # endif |
2592 | # endif |
1905 | #endif |
2593 | #endif |
1906 | } |
2594 | } |
1907 | #endif |
2595 | #endif |
1908 | |
2596 | |
1909 | #if EV_MULTIPLICITY |
2597 | #if EV_MULTIPLICITY |
1910 | struct ev_loop * |
2598 | struct ev_loop * ecb_cold |
1911 | ev_default_loop_init (unsigned int flags) |
|
|
1912 | #else |
2599 | #else |
1913 | int |
2600 | int |
|
|
2601 | #endif |
1914 | ev_default_loop (unsigned int flags) |
2602 | ev_default_loop (unsigned int flags) |
1915 | #endif |
|
|
1916 | { |
2603 | { |
1917 | if (!ev_default_loop_ptr) |
2604 | if (!ev_default_loop_ptr) |
1918 | { |
2605 | { |
1919 | #if EV_MULTIPLICITY |
2606 | #if EV_MULTIPLICITY |
1920 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2607 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1924 | |
2611 | |
1925 | loop_init (EV_A_ flags); |
2612 | loop_init (EV_A_ flags); |
1926 | |
2613 | |
1927 | if (ev_backend (EV_A)) |
2614 | if (ev_backend (EV_A)) |
1928 | { |
2615 | { |
1929 | #ifndef _WIN32 |
2616 | #if EV_CHILD_ENABLE |
1930 | ev_signal_init (&childev, childcb, SIGCHLD); |
2617 | ev_signal_init (&childev, childcb, SIGCHLD); |
1931 | ev_set_priority (&childev, EV_MAXPRI); |
2618 | ev_set_priority (&childev, EV_MAXPRI); |
1932 | ev_signal_start (EV_A_ &childev); |
2619 | ev_signal_start (EV_A_ &childev); |
1933 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2620 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1934 | #endif |
2621 | #endif |
… | |
… | |
1939 | |
2626 | |
1940 | return ev_default_loop_ptr; |
2627 | return ev_default_loop_ptr; |
1941 | } |
2628 | } |
1942 | |
2629 | |
1943 | void |
2630 | void |
1944 | ev_default_destroy (void) |
2631 | ev_loop_fork (EV_P) |
1945 | { |
2632 | { |
1946 | #if EV_MULTIPLICITY |
|
|
1947 | EV_P = ev_default_loop_ptr; |
|
|
1948 | #endif |
|
|
1949 | |
|
|
1950 | ev_default_loop_ptr = 0; |
|
|
1951 | |
|
|
1952 | #ifndef _WIN32 |
|
|
1953 | ev_ref (EV_A); /* child watcher */ |
|
|
1954 | ev_signal_stop (EV_A_ &childev); |
|
|
1955 | #endif |
|
|
1956 | |
|
|
1957 | loop_destroy (EV_A); |
|
|
1958 | } |
|
|
1959 | |
|
|
1960 | void |
|
|
1961 | ev_default_fork (void) |
|
|
1962 | { |
|
|
1963 | #if EV_MULTIPLICITY |
|
|
1964 | EV_P = ev_default_loop_ptr; |
|
|
1965 | #endif |
|
|
1966 | |
|
|
1967 | postfork = 1; /* must be in line with ev_loop_fork */ |
2633 | postfork = 1; /* must be in line with ev_default_fork */ |
1968 | } |
2634 | } |
1969 | |
2635 | |
1970 | /*****************************************************************************/ |
2636 | /*****************************************************************************/ |
1971 | |
2637 | |
1972 | void |
2638 | void |
… | |
… | |
1994 | |
2660 | |
1995 | for (pri = NUMPRI; pri--; ) |
2661 | for (pri = NUMPRI; pri--; ) |
1996 | while (pendingcnt [pri]) |
2662 | while (pendingcnt [pri]) |
1997 | { |
2663 | { |
1998 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2664 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1999 | |
|
|
2000 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2001 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2002 | |
2665 | |
2003 | p->w->pending = 0; |
2666 | p->w->pending = 0; |
2004 | EV_CB_INVOKE (p->w, p->events); |
2667 | EV_CB_INVOKE (p->w, p->events); |
2005 | EV_FREQUENT_CHECK; |
2668 | EV_FREQUENT_CHECK; |
2006 | } |
2669 | } |
… | |
… | |
2063 | EV_FREQUENT_CHECK; |
2726 | EV_FREQUENT_CHECK; |
2064 | feed_reverse (EV_A_ (W)w); |
2727 | feed_reverse (EV_A_ (W)w); |
2065 | } |
2728 | } |
2066 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2729 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2067 | |
2730 | |
2068 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2731 | feed_reverse_done (EV_A_ EV_TIMER); |
2069 | } |
2732 | } |
2070 | } |
2733 | } |
2071 | |
2734 | |
2072 | #if EV_PERIODIC_ENABLE |
2735 | #if EV_PERIODIC_ENABLE |
|
|
2736 | |
|
|
2737 | static void noinline |
|
|
2738 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2739 | { |
|
|
2740 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2741 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2742 | |
|
|
2743 | /* the above almost always errs on the low side */ |
|
|
2744 | while (at <= ev_rt_now) |
|
|
2745 | { |
|
|
2746 | ev_tstamp nat = at + w->interval; |
|
|
2747 | |
|
|
2748 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2749 | if (expect_false (nat == at)) |
|
|
2750 | { |
|
|
2751 | at = ev_rt_now; |
|
|
2752 | break; |
|
|
2753 | } |
|
|
2754 | |
|
|
2755 | at = nat; |
|
|
2756 | } |
|
|
2757 | |
|
|
2758 | ev_at (w) = at; |
|
|
2759 | } |
|
|
2760 | |
2073 | /* make periodics pending */ |
2761 | /* make periodics pending */ |
2074 | inline_size void |
2762 | inline_size void |
2075 | periodics_reify (EV_P) |
2763 | periodics_reify (EV_P) |
2076 | { |
2764 | { |
2077 | EV_FREQUENT_CHECK; |
2765 | EV_FREQUENT_CHECK; |
… | |
… | |
2096 | ANHE_at_cache (periodics [HEAP0]); |
2784 | ANHE_at_cache (periodics [HEAP0]); |
2097 | downheap (periodics, periodiccnt, HEAP0); |
2785 | downheap (periodics, periodiccnt, HEAP0); |
2098 | } |
2786 | } |
2099 | else if (w->interval) |
2787 | else if (w->interval) |
2100 | { |
2788 | { |
2101 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2789 | periodic_recalc (EV_A_ w); |
2102 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2103 | /* this might happen because of floating point inexactness */ |
|
|
2104 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2105 | { |
|
|
2106 | ev_at (w) += w->interval; |
|
|
2107 | |
|
|
2108 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2109 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2110 | /* has effectively asked to get triggered more often than possible */ |
|
|
2111 | if (ev_at (w) < ev_rt_now) |
|
|
2112 | ev_at (w) = ev_rt_now; |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | ANHE_at_cache (periodics [HEAP0]); |
2790 | ANHE_at_cache (periodics [HEAP0]); |
2116 | downheap (periodics, periodiccnt, HEAP0); |
2791 | downheap (periodics, periodiccnt, HEAP0); |
2117 | } |
2792 | } |
2118 | else |
2793 | else |
2119 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2794 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2126 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2801 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2127 | } |
2802 | } |
2128 | } |
2803 | } |
2129 | |
2804 | |
2130 | /* simply recalculate all periodics */ |
2805 | /* simply recalculate all periodics */ |
2131 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2806 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2132 | static void noinline |
2807 | static void noinline ecb_cold |
2133 | periodics_reschedule (EV_P) |
2808 | periodics_reschedule (EV_P) |
2134 | { |
2809 | { |
2135 | int i; |
2810 | int i; |
2136 | |
2811 | |
2137 | /* adjust periodics after time jump */ |
2812 | /* adjust periodics after time jump */ |
… | |
… | |
2140 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2815 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2141 | |
2816 | |
2142 | if (w->reschedule_cb) |
2817 | if (w->reschedule_cb) |
2143 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2818 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2144 | else if (w->interval) |
2819 | else if (w->interval) |
2145 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2820 | periodic_recalc (EV_A_ w); |
2146 | |
2821 | |
2147 | ANHE_at_cache (periodics [i]); |
2822 | ANHE_at_cache (periodics [i]); |
2148 | } |
2823 | } |
2149 | |
2824 | |
2150 | reheap (periodics, periodiccnt); |
2825 | reheap (periodics, periodiccnt); |
2151 | } |
2826 | } |
2152 | #endif |
2827 | #endif |
2153 | |
2828 | |
2154 | /* adjust all timers by a given offset */ |
2829 | /* adjust all timers by a given offset */ |
2155 | static void noinline |
2830 | static void noinline ecb_cold |
2156 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2831 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2157 | { |
2832 | { |
2158 | int i; |
2833 | int i; |
2159 | |
2834 | |
2160 | for (i = 0; i < timercnt; ++i) |
2835 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2197 | * doesn't hurt either as we only do this on time-jumps or |
2872 | * doesn't hurt either as we only do this on time-jumps or |
2198 | * in the unlikely event of having been preempted here. |
2873 | * in the unlikely event of having been preempted here. |
2199 | */ |
2874 | */ |
2200 | for (i = 4; --i; ) |
2875 | for (i = 4; --i; ) |
2201 | { |
2876 | { |
|
|
2877 | ev_tstamp diff; |
2202 | rtmn_diff = ev_rt_now - mn_now; |
2878 | rtmn_diff = ev_rt_now - mn_now; |
2203 | |
2879 | |
|
|
2880 | diff = odiff - rtmn_diff; |
|
|
2881 | |
2204 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2882 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2205 | return; /* all is well */ |
2883 | return; /* all is well */ |
2206 | |
2884 | |
2207 | ev_rt_now = ev_time (); |
2885 | ev_rt_now = ev_time (); |
2208 | mn_now = get_clock (); |
2886 | mn_now = get_clock (); |
2209 | now_floor = mn_now; |
2887 | now_floor = mn_now; |
… | |
… | |
2232 | mn_now = ev_rt_now; |
2910 | mn_now = ev_rt_now; |
2233 | } |
2911 | } |
2234 | } |
2912 | } |
2235 | |
2913 | |
2236 | void |
2914 | void |
2237 | ev_loop (EV_P_ int flags) |
2915 | ev_run (EV_P_ int flags) |
2238 | { |
2916 | { |
2239 | #if EV_MINIMAL < 2 |
2917 | #if EV_FEATURE_API |
2240 | ++loop_depth; |
2918 | ++loop_depth; |
2241 | #endif |
2919 | #endif |
2242 | |
2920 | |
2243 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2921 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2244 | |
2922 | |
2245 | loop_done = EVUNLOOP_CANCEL; |
2923 | loop_done = EVBREAK_CANCEL; |
2246 | |
2924 | |
2247 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2925 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2248 | |
2926 | |
2249 | do |
2927 | do |
2250 | { |
2928 | { |
2251 | #if EV_VERIFY >= 2 |
2929 | #if EV_VERIFY >= 2 |
2252 | ev_loop_verify (EV_A); |
2930 | ev_verify (EV_A); |
2253 | #endif |
2931 | #endif |
2254 | |
2932 | |
2255 | #ifndef _WIN32 |
2933 | #ifndef _WIN32 |
2256 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2934 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2257 | if (expect_false (getpid () != curpid)) |
2935 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2269 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2947 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2270 | EV_INVOKE_PENDING; |
2948 | EV_INVOKE_PENDING; |
2271 | } |
2949 | } |
2272 | #endif |
2950 | #endif |
2273 | |
2951 | |
|
|
2952 | #if EV_PREPARE_ENABLE |
2274 | /* queue prepare watchers (and execute them) */ |
2953 | /* queue prepare watchers (and execute them) */ |
2275 | if (expect_false (preparecnt)) |
2954 | if (expect_false (preparecnt)) |
2276 | { |
2955 | { |
2277 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2956 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2278 | EV_INVOKE_PENDING; |
2957 | EV_INVOKE_PENDING; |
2279 | } |
2958 | } |
|
|
2959 | #endif |
2280 | |
2960 | |
2281 | if (expect_false (loop_done)) |
2961 | if (expect_false (loop_done)) |
2282 | break; |
2962 | break; |
2283 | |
2963 | |
2284 | /* we might have forked, so reify kernel state if necessary */ |
2964 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2291 | /* calculate blocking time */ |
2971 | /* calculate blocking time */ |
2292 | { |
2972 | { |
2293 | ev_tstamp waittime = 0.; |
2973 | ev_tstamp waittime = 0.; |
2294 | ev_tstamp sleeptime = 0.; |
2974 | ev_tstamp sleeptime = 0.; |
2295 | |
2975 | |
|
|
2976 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2977 | ev_tstamp prev_mn_now = mn_now; |
|
|
2978 | |
|
|
2979 | /* update time to cancel out callback processing overhead */ |
|
|
2980 | time_update (EV_A_ 1e100); |
|
|
2981 | |
|
|
2982 | /* from now on, we want a pipe-wake-up */ |
|
|
2983 | pipe_write_wanted = 1; |
|
|
2984 | |
|
|
2985 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2986 | |
2296 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2987 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2297 | { |
2988 | { |
2298 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2299 | ev_tstamp prev_mn_now = mn_now; |
|
|
2300 | |
|
|
2301 | /* update time to cancel out callback processing overhead */ |
|
|
2302 | time_update (EV_A_ 1e100); |
|
|
2303 | |
|
|
2304 | waittime = MAX_BLOCKTIME; |
2989 | waittime = MAX_BLOCKTIME; |
2305 | |
2990 | |
2306 | if (timercnt) |
2991 | if (timercnt) |
2307 | { |
2992 | { |
2308 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2993 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2309 | if (waittime > to) waittime = to; |
2994 | if (waittime > to) waittime = to; |
2310 | } |
2995 | } |
2311 | |
2996 | |
2312 | #if EV_PERIODIC_ENABLE |
2997 | #if EV_PERIODIC_ENABLE |
2313 | if (periodiccnt) |
2998 | if (periodiccnt) |
2314 | { |
2999 | { |
2315 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3000 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2316 | if (waittime > to) waittime = to; |
3001 | if (waittime > to) waittime = to; |
2317 | } |
3002 | } |
2318 | #endif |
3003 | #endif |
2319 | |
3004 | |
2320 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3005 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2321 | if (expect_false (waittime < timeout_blocktime)) |
3006 | if (expect_false (waittime < timeout_blocktime)) |
2322 | waittime = timeout_blocktime; |
3007 | waittime = timeout_blocktime; |
|
|
3008 | |
|
|
3009 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3010 | /* to pass a minimum nonzero value to the backend */ |
|
|
3011 | if (expect_false (waittime < backend_mintime)) |
|
|
3012 | waittime = backend_mintime; |
2323 | |
3013 | |
2324 | /* extra check because io_blocktime is commonly 0 */ |
3014 | /* extra check because io_blocktime is commonly 0 */ |
2325 | if (expect_false (io_blocktime)) |
3015 | if (expect_false (io_blocktime)) |
2326 | { |
3016 | { |
2327 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3017 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2328 | |
3018 | |
2329 | if (sleeptime > waittime - backend_fudge) |
3019 | if (sleeptime > waittime - backend_mintime) |
2330 | sleeptime = waittime - backend_fudge; |
3020 | sleeptime = waittime - backend_mintime; |
2331 | |
3021 | |
2332 | if (expect_true (sleeptime > 0.)) |
3022 | if (expect_true (sleeptime > 0.)) |
2333 | { |
3023 | { |
2334 | ev_sleep (sleeptime); |
3024 | ev_sleep (sleeptime); |
2335 | waittime -= sleeptime; |
3025 | waittime -= sleeptime; |
2336 | } |
3026 | } |
2337 | } |
3027 | } |
2338 | } |
3028 | } |
2339 | |
3029 | |
2340 | #if EV_MINIMAL < 2 |
3030 | #if EV_FEATURE_API |
2341 | ++loop_count; |
3031 | ++loop_count; |
2342 | #endif |
3032 | #endif |
2343 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3033 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2344 | backend_poll (EV_A_ waittime); |
3034 | backend_poll (EV_A_ waittime); |
2345 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3035 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3036 | |
|
|
3037 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3038 | |
|
|
3039 | if (pipe_write_skipped) |
|
|
3040 | { |
|
|
3041 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3042 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3043 | } |
|
|
3044 | |
2346 | |
3045 | |
2347 | /* update ev_rt_now, do magic */ |
3046 | /* update ev_rt_now, do magic */ |
2348 | time_update (EV_A_ waittime + sleeptime); |
3047 | time_update (EV_A_ waittime + sleeptime); |
2349 | } |
3048 | } |
2350 | |
3049 | |
… | |
… | |
2357 | #if EV_IDLE_ENABLE |
3056 | #if EV_IDLE_ENABLE |
2358 | /* queue idle watchers unless other events are pending */ |
3057 | /* queue idle watchers unless other events are pending */ |
2359 | idle_reify (EV_A); |
3058 | idle_reify (EV_A); |
2360 | #endif |
3059 | #endif |
2361 | |
3060 | |
|
|
3061 | #if EV_CHECK_ENABLE |
2362 | /* queue check watchers, to be executed first */ |
3062 | /* queue check watchers, to be executed first */ |
2363 | if (expect_false (checkcnt)) |
3063 | if (expect_false (checkcnt)) |
2364 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3064 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3065 | #endif |
2365 | |
3066 | |
2366 | EV_INVOKE_PENDING; |
3067 | EV_INVOKE_PENDING; |
2367 | } |
3068 | } |
2368 | while (expect_true ( |
3069 | while (expect_true ( |
2369 | activecnt |
3070 | activecnt |
2370 | && !loop_done |
3071 | && !loop_done |
2371 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3072 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2372 | )); |
3073 | )); |
2373 | |
3074 | |
2374 | if (loop_done == EVUNLOOP_ONE) |
3075 | if (loop_done == EVBREAK_ONE) |
2375 | loop_done = EVUNLOOP_CANCEL; |
3076 | loop_done = EVBREAK_CANCEL; |
2376 | |
3077 | |
2377 | #if EV_MINIMAL < 2 |
3078 | #if EV_FEATURE_API |
2378 | --loop_depth; |
3079 | --loop_depth; |
2379 | #endif |
3080 | #endif |
2380 | } |
3081 | } |
2381 | |
3082 | |
2382 | void |
3083 | void |
2383 | ev_unloop (EV_P_ int how) |
3084 | ev_break (EV_P_ int how) |
2384 | { |
3085 | { |
2385 | loop_done = how; |
3086 | loop_done = how; |
2386 | } |
3087 | } |
2387 | |
3088 | |
2388 | void |
3089 | void |
… | |
… | |
2508 | |
3209 | |
2509 | if (expect_false (ev_is_active (w))) |
3210 | if (expect_false (ev_is_active (w))) |
2510 | return; |
3211 | return; |
2511 | |
3212 | |
2512 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3213 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2513 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3214 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2514 | |
3215 | |
2515 | EV_FREQUENT_CHECK; |
3216 | EV_FREQUENT_CHECK; |
2516 | |
3217 | |
2517 | ev_start (EV_A_ (W)w, 1); |
3218 | ev_start (EV_A_ (W)w, 1); |
2518 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3219 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2536 | EV_FREQUENT_CHECK; |
3237 | EV_FREQUENT_CHECK; |
2537 | |
3238 | |
2538 | wlist_del (&anfds[w->fd].head, (WL)w); |
3239 | wlist_del (&anfds[w->fd].head, (WL)w); |
2539 | ev_stop (EV_A_ (W)w); |
3240 | ev_stop (EV_A_ (W)w); |
2540 | |
3241 | |
2541 | fd_change (EV_A_ w->fd, 1); |
3242 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2542 | |
3243 | |
2543 | EV_FREQUENT_CHECK; |
3244 | EV_FREQUENT_CHECK; |
2544 | } |
3245 | } |
2545 | |
3246 | |
2546 | void noinline |
3247 | void noinline |
… | |
… | |
2588 | timers [active] = timers [timercnt + HEAP0]; |
3289 | timers [active] = timers [timercnt + HEAP0]; |
2589 | adjustheap (timers, timercnt, active); |
3290 | adjustheap (timers, timercnt, active); |
2590 | } |
3291 | } |
2591 | } |
3292 | } |
2592 | |
3293 | |
2593 | EV_FREQUENT_CHECK; |
|
|
2594 | |
|
|
2595 | ev_at (w) -= mn_now; |
3294 | ev_at (w) -= mn_now; |
2596 | |
3295 | |
2597 | ev_stop (EV_A_ (W)w); |
3296 | ev_stop (EV_A_ (W)w); |
|
|
3297 | |
|
|
3298 | EV_FREQUENT_CHECK; |
2598 | } |
3299 | } |
2599 | |
3300 | |
2600 | void noinline |
3301 | void noinline |
2601 | ev_timer_again (EV_P_ ev_timer *w) |
3302 | ev_timer_again (EV_P_ ev_timer *w) |
2602 | { |
3303 | { |
2603 | EV_FREQUENT_CHECK; |
3304 | EV_FREQUENT_CHECK; |
|
|
3305 | |
|
|
3306 | clear_pending (EV_A_ (W)w); |
2604 | |
3307 | |
2605 | if (ev_is_active (w)) |
3308 | if (ev_is_active (w)) |
2606 | { |
3309 | { |
2607 | if (w->repeat) |
3310 | if (w->repeat) |
2608 | { |
3311 | { |
… | |
… | |
2638 | if (w->reschedule_cb) |
3341 | if (w->reschedule_cb) |
2639 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3342 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2640 | else if (w->interval) |
3343 | else if (w->interval) |
2641 | { |
3344 | { |
2642 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3345 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2643 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3346 | periodic_recalc (EV_A_ w); |
2644 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2645 | } |
3347 | } |
2646 | else |
3348 | else |
2647 | ev_at (w) = w->offset; |
3349 | ev_at (w) = w->offset; |
2648 | |
3350 | |
2649 | EV_FREQUENT_CHECK; |
3351 | EV_FREQUENT_CHECK; |
… | |
… | |
2681 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3383 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2682 | adjustheap (periodics, periodiccnt, active); |
3384 | adjustheap (periodics, periodiccnt, active); |
2683 | } |
3385 | } |
2684 | } |
3386 | } |
2685 | |
3387 | |
2686 | EV_FREQUENT_CHECK; |
|
|
2687 | |
|
|
2688 | ev_stop (EV_A_ (W)w); |
3388 | ev_stop (EV_A_ (W)w); |
|
|
3389 | |
|
|
3390 | EV_FREQUENT_CHECK; |
2689 | } |
3391 | } |
2690 | |
3392 | |
2691 | void noinline |
3393 | void noinline |
2692 | ev_periodic_again (EV_P_ ev_periodic *w) |
3394 | ev_periodic_again (EV_P_ ev_periodic *w) |
2693 | { |
3395 | { |
… | |
… | |
2698 | #endif |
3400 | #endif |
2699 | |
3401 | |
2700 | #ifndef SA_RESTART |
3402 | #ifndef SA_RESTART |
2701 | # define SA_RESTART 0 |
3403 | # define SA_RESTART 0 |
2702 | #endif |
3404 | #endif |
|
|
3405 | |
|
|
3406 | #if EV_SIGNAL_ENABLE |
2703 | |
3407 | |
2704 | void noinline |
3408 | void noinline |
2705 | ev_signal_start (EV_P_ ev_signal *w) |
3409 | ev_signal_start (EV_P_ ev_signal *w) |
2706 | { |
3410 | { |
2707 | if (expect_false (ev_is_active (w))) |
3411 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2768 | sa.sa_handler = ev_sighandler; |
3472 | sa.sa_handler = ev_sighandler; |
2769 | sigfillset (&sa.sa_mask); |
3473 | sigfillset (&sa.sa_mask); |
2770 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3474 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2771 | sigaction (w->signum, &sa, 0); |
3475 | sigaction (w->signum, &sa, 0); |
2772 | |
3476 | |
|
|
3477 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3478 | { |
2773 | sigemptyset (&sa.sa_mask); |
3479 | sigemptyset (&sa.sa_mask); |
2774 | sigaddset (&sa.sa_mask, w->signum); |
3480 | sigaddset (&sa.sa_mask, w->signum); |
2775 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3481 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3482 | } |
2776 | #endif |
3483 | #endif |
2777 | } |
3484 | } |
2778 | |
3485 | |
2779 | EV_FREQUENT_CHECK; |
3486 | EV_FREQUENT_CHECK; |
2780 | } |
3487 | } |
… | |
… | |
2814 | } |
3521 | } |
2815 | |
3522 | |
2816 | EV_FREQUENT_CHECK; |
3523 | EV_FREQUENT_CHECK; |
2817 | } |
3524 | } |
2818 | |
3525 | |
|
|
3526 | #endif |
|
|
3527 | |
|
|
3528 | #if EV_CHILD_ENABLE |
|
|
3529 | |
2819 | void |
3530 | void |
2820 | ev_child_start (EV_P_ ev_child *w) |
3531 | ev_child_start (EV_P_ ev_child *w) |
2821 | { |
3532 | { |
2822 | #if EV_MULTIPLICITY |
3533 | #if EV_MULTIPLICITY |
2823 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3534 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2826 | return; |
3537 | return; |
2827 | |
3538 | |
2828 | EV_FREQUENT_CHECK; |
3539 | EV_FREQUENT_CHECK; |
2829 | |
3540 | |
2830 | ev_start (EV_A_ (W)w, 1); |
3541 | ev_start (EV_A_ (W)w, 1); |
2831 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3542 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2832 | |
3543 | |
2833 | EV_FREQUENT_CHECK; |
3544 | EV_FREQUENT_CHECK; |
2834 | } |
3545 | } |
2835 | |
3546 | |
2836 | void |
3547 | void |
… | |
… | |
2840 | if (expect_false (!ev_is_active (w))) |
3551 | if (expect_false (!ev_is_active (w))) |
2841 | return; |
3552 | return; |
2842 | |
3553 | |
2843 | EV_FREQUENT_CHECK; |
3554 | EV_FREQUENT_CHECK; |
2844 | |
3555 | |
2845 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3556 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2846 | ev_stop (EV_A_ (W)w); |
3557 | ev_stop (EV_A_ (W)w); |
2847 | |
3558 | |
2848 | EV_FREQUENT_CHECK; |
3559 | EV_FREQUENT_CHECK; |
2849 | } |
3560 | } |
|
|
3561 | |
|
|
3562 | #endif |
2850 | |
3563 | |
2851 | #if EV_STAT_ENABLE |
3564 | #if EV_STAT_ENABLE |
2852 | |
3565 | |
2853 | # ifdef _WIN32 |
3566 | # ifdef _WIN32 |
2854 | # undef lstat |
3567 | # undef lstat |
… | |
… | |
2915 | if (!pend || pend == path) |
3628 | if (!pend || pend == path) |
2916 | break; |
3629 | break; |
2917 | |
3630 | |
2918 | *pend = 0; |
3631 | *pend = 0; |
2919 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3632 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2920 | } |
3633 | } |
2921 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3634 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2922 | } |
3635 | } |
2923 | } |
3636 | } |
2924 | |
3637 | |
2925 | if (w->wd >= 0) |
3638 | if (w->wd >= 0) |
2926 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3639 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2927 | |
3640 | |
2928 | /* now re-arm timer, if required */ |
3641 | /* now re-arm timer, if required */ |
2929 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3642 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2930 | ev_timer_again (EV_A_ &w->timer); |
3643 | ev_timer_again (EV_A_ &w->timer); |
2931 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3644 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
… | |
… | |
2939 | |
3652 | |
2940 | if (wd < 0) |
3653 | if (wd < 0) |
2941 | return; |
3654 | return; |
2942 | |
3655 | |
2943 | w->wd = -2; |
3656 | w->wd = -2; |
2944 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3657 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2945 | wlist_del (&fs_hash [slot].head, (WL)w); |
3658 | wlist_del (&fs_hash [slot].head, (WL)w); |
2946 | |
3659 | |
2947 | /* remove this watcher, if others are watching it, they will rearm */ |
3660 | /* remove this watcher, if others are watching it, they will rearm */ |
2948 | inotify_rm_watch (fs_fd, wd); |
3661 | inotify_rm_watch (fs_fd, wd); |
2949 | } |
3662 | } |
… | |
… | |
2951 | static void noinline |
3664 | static void noinline |
2952 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3665 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2953 | { |
3666 | { |
2954 | if (slot < 0) |
3667 | if (slot < 0) |
2955 | /* overflow, need to check for all hash slots */ |
3668 | /* overflow, need to check for all hash slots */ |
2956 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3669 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2957 | infy_wd (EV_A_ slot, wd, ev); |
3670 | infy_wd (EV_A_ slot, wd, ev); |
2958 | else |
3671 | else |
2959 | { |
3672 | { |
2960 | WL w_; |
3673 | WL w_; |
2961 | |
3674 | |
2962 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3675 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2963 | { |
3676 | { |
2964 | ev_stat *w = (ev_stat *)w_; |
3677 | ev_stat *w = (ev_stat *)w_; |
2965 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3678 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2966 | |
3679 | |
2967 | if (w->wd == wd || wd == -1) |
3680 | if (w->wd == wd || wd == -1) |
2968 | { |
3681 | { |
2969 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3682 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2970 | { |
3683 | { |
2971 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3684 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2972 | w->wd = -1; |
3685 | w->wd = -1; |
2973 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3686 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2974 | } |
3687 | } |
2975 | |
3688 | |
2976 | stat_timer_cb (EV_A_ &w->timer, 0); |
3689 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2992 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3705 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2993 | ofs += sizeof (struct inotify_event) + ev->len; |
3706 | ofs += sizeof (struct inotify_event) + ev->len; |
2994 | } |
3707 | } |
2995 | } |
3708 | } |
2996 | |
3709 | |
2997 | inline_size void |
3710 | inline_size void ecb_cold |
2998 | check_2625 (EV_P) |
3711 | ev_check_2625 (EV_P) |
2999 | { |
3712 | { |
3000 | /* kernels < 2.6.25 are borked |
3713 | /* kernels < 2.6.25 are borked |
3001 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3714 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3002 | */ |
3715 | */ |
3003 | struct utsname buf; |
3716 | if (ev_linux_version () < 0x020619) |
3004 | int major, minor, micro; |
|
|
3005 | |
|
|
3006 | if (uname (&buf)) |
|
|
3007 | return; |
|
|
3008 | |
|
|
3009 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
3010 | return; |
|
|
3011 | |
|
|
3012 | if (major < 2 |
|
|
3013 | || (major == 2 && minor < 6) |
|
|
3014 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3015 | return; |
3717 | return; |
3016 | |
3718 | |
3017 | fs_2625 = 1; |
3719 | fs_2625 = 1; |
3018 | } |
3720 | } |
3019 | |
3721 | |
… | |
… | |
3034 | if (fs_fd != -2) |
3736 | if (fs_fd != -2) |
3035 | return; |
3737 | return; |
3036 | |
3738 | |
3037 | fs_fd = -1; |
3739 | fs_fd = -1; |
3038 | |
3740 | |
3039 | check_2625 (EV_A); |
3741 | ev_check_2625 (EV_A); |
3040 | |
3742 | |
3041 | fs_fd = infy_newfd (); |
3743 | fs_fd = infy_newfd (); |
3042 | |
3744 | |
3043 | if (fs_fd >= 0) |
3745 | if (fs_fd >= 0) |
3044 | { |
3746 | { |
… | |
… | |
3069 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3771 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3070 | ev_io_start (EV_A_ &fs_w); |
3772 | ev_io_start (EV_A_ &fs_w); |
3071 | ev_unref (EV_A); |
3773 | ev_unref (EV_A); |
3072 | } |
3774 | } |
3073 | |
3775 | |
3074 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3776 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3075 | { |
3777 | { |
3076 | WL w_ = fs_hash [slot].head; |
3778 | WL w_ = fs_hash [slot].head; |
3077 | fs_hash [slot].head = 0; |
3779 | fs_hash [slot].head = 0; |
3078 | |
3780 | |
3079 | while (w_) |
3781 | while (w_) |
… | |
… | |
3254 | |
3956 | |
3255 | EV_FREQUENT_CHECK; |
3957 | EV_FREQUENT_CHECK; |
3256 | } |
3958 | } |
3257 | #endif |
3959 | #endif |
3258 | |
3960 | |
|
|
3961 | #if EV_PREPARE_ENABLE |
3259 | void |
3962 | void |
3260 | ev_prepare_start (EV_P_ ev_prepare *w) |
3963 | ev_prepare_start (EV_P_ ev_prepare *w) |
3261 | { |
3964 | { |
3262 | if (expect_false (ev_is_active (w))) |
3965 | if (expect_false (ev_is_active (w))) |
3263 | return; |
3966 | return; |
… | |
… | |
3289 | |
3992 | |
3290 | ev_stop (EV_A_ (W)w); |
3993 | ev_stop (EV_A_ (W)w); |
3291 | |
3994 | |
3292 | EV_FREQUENT_CHECK; |
3995 | EV_FREQUENT_CHECK; |
3293 | } |
3996 | } |
|
|
3997 | #endif |
3294 | |
3998 | |
|
|
3999 | #if EV_CHECK_ENABLE |
3295 | void |
4000 | void |
3296 | ev_check_start (EV_P_ ev_check *w) |
4001 | ev_check_start (EV_P_ ev_check *w) |
3297 | { |
4002 | { |
3298 | if (expect_false (ev_is_active (w))) |
4003 | if (expect_false (ev_is_active (w))) |
3299 | return; |
4004 | return; |
… | |
… | |
3325 | |
4030 | |
3326 | ev_stop (EV_A_ (W)w); |
4031 | ev_stop (EV_A_ (W)w); |
3327 | |
4032 | |
3328 | EV_FREQUENT_CHECK; |
4033 | EV_FREQUENT_CHECK; |
3329 | } |
4034 | } |
|
|
4035 | #endif |
3330 | |
4036 | |
3331 | #if EV_EMBED_ENABLE |
4037 | #if EV_EMBED_ENABLE |
3332 | void noinline |
4038 | void noinline |
3333 | ev_embed_sweep (EV_P_ ev_embed *w) |
4039 | ev_embed_sweep (EV_P_ ev_embed *w) |
3334 | { |
4040 | { |
3335 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4041 | ev_run (w->other, EVRUN_NOWAIT); |
3336 | } |
4042 | } |
3337 | |
4043 | |
3338 | static void |
4044 | static void |
3339 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4045 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3340 | { |
4046 | { |
3341 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4047 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3342 | |
4048 | |
3343 | if (ev_cb (w)) |
4049 | if (ev_cb (w)) |
3344 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4050 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3345 | else |
4051 | else |
3346 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4052 | ev_run (w->other, EVRUN_NOWAIT); |
3347 | } |
4053 | } |
3348 | |
4054 | |
3349 | static void |
4055 | static void |
3350 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4056 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3351 | { |
4057 | { |
… | |
… | |
3355 | EV_P = w->other; |
4061 | EV_P = w->other; |
3356 | |
4062 | |
3357 | while (fdchangecnt) |
4063 | while (fdchangecnt) |
3358 | { |
4064 | { |
3359 | fd_reify (EV_A); |
4065 | fd_reify (EV_A); |
3360 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4066 | ev_run (EV_A_ EVRUN_NOWAIT); |
3361 | } |
4067 | } |
3362 | } |
4068 | } |
3363 | } |
4069 | } |
3364 | |
4070 | |
3365 | static void |
4071 | static void |
… | |
… | |
3371 | |
4077 | |
3372 | { |
4078 | { |
3373 | EV_P = w->other; |
4079 | EV_P = w->other; |
3374 | |
4080 | |
3375 | ev_loop_fork (EV_A); |
4081 | ev_loop_fork (EV_A); |
3376 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4082 | ev_run (EV_A_ EVRUN_NOWAIT); |
3377 | } |
4083 | } |
3378 | |
4084 | |
3379 | ev_embed_start (EV_A_ w); |
4085 | ev_embed_start (EV_A_ w); |
3380 | } |
4086 | } |
3381 | |
4087 | |
… | |
… | |
3429 | |
4135 | |
3430 | ev_io_stop (EV_A_ &w->io); |
4136 | ev_io_stop (EV_A_ &w->io); |
3431 | ev_prepare_stop (EV_A_ &w->prepare); |
4137 | ev_prepare_stop (EV_A_ &w->prepare); |
3432 | ev_fork_stop (EV_A_ &w->fork); |
4138 | ev_fork_stop (EV_A_ &w->fork); |
3433 | |
4139 | |
|
|
4140 | ev_stop (EV_A_ (W)w); |
|
|
4141 | |
3434 | EV_FREQUENT_CHECK; |
4142 | EV_FREQUENT_CHECK; |
3435 | } |
4143 | } |
3436 | #endif |
4144 | #endif |
3437 | |
4145 | |
3438 | #if EV_FORK_ENABLE |
4146 | #if EV_FORK_ENABLE |
… | |
… | |
3471 | |
4179 | |
3472 | EV_FREQUENT_CHECK; |
4180 | EV_FREQUENT_CHECK; |
3473 | } |
4181 | } |
3474 | #endif |
4182 | #endif |
3475 | |
4183 | |
|
|
4184 | #if EV_CLEANUP_ENABLE |
|
|
4185 | void |
|
|
4186 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4187 | { |
|
|
4188 | if (expect_false (ev_is_active (w))) |
|
|
4189 | return; |
|
|
4190 | |
|
|
4191 | EV_FREQUENT_CHECK; |
|
|
4192 | |
|
|
4193 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4194 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4195 | cleanups [cleanupcnt - 1] = w; |
|
|
4196 | |
|
|
4197 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4198 | ev_unref (EV_A); |
|
|
4199 | EV_FREQUENT_CHECK; |
|
|
4200 | } |
|
|
4201 | |
|
|
4202 | void |
|
|
4203 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4204 | { |
|
|
4205 | clear_pending (EV_A_ (W)w); |
|
|
4206 | if (expect_false (!ev_is_active (w))) |
|
|
4207 | return; |
|
|
4208 | |
|
|
4209 | EV_FREQUENT_CHECK; |
|
|
4210 | ev_ref (EV_A); |
|
|
4211 | |
|
|
4212 | { |
|
|
4213 | int active = ev_active (w); |
|
|
4214 | |
|
|
4215 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4216 | ev_active (cleanups [active - 1]) = active; |
|
|
4217 | } |
|
|
4218 | |
|
|
4219 | ev_stop (EV_A_ (W)w); |
|
|
4220 | |
|
|
4221 | EV_FREQUENT_CHECK; |
|
|
4222 | } |
|
|
4223 | #endif |
|
|
4224 | |
3476 | #if EV_ASYNC_ENABLE |
4225 | #if EV_ASYNC_ENABLE |
3477 | void |
4226 | void |
3478 | ev_async_start (EV_P_ ev_async *w) |
4227 | ev_async_start (EV_P_ ev_async *w) |
3479 | { |
4228 | { |
3480 | if (expect_false (ev_is_active (w))) |
4229 | if (expect_false (ev_is_active (w))) |
3481 | return; |
4230 | return; |
|
|
4231 | |
|
|
4232 | w->sent = 0; |
3482 | |
4233 | |
3483 | evpipe_init (EV_A); |
4234 | evpipe_init (EV_A); |
3484 | |
4235 | |
3485 | EV_FREQUENT_CHECK; |
4236 | EV_FREQUENT_CHECK; |
3486 | |
4237 | |
… | |
… | |
3564 | { |
4315 | { |
3565 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4316 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3566 | |
4317 | |
3567 | if (expect_false (!once)) |
4318 | if (expect_false (!once)) |
3568 | { |
4319 | { |
3569 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4320 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3570 | return; |
4321 | return; |
3571 | } |
4322 | } |
3572 | |
4323 | |
3573 | once->cb = cb; |
4324 | once->cb = cb; |
3574 | once->arg = arg; |
4325 | once->arg = arg; |
… | |
… | |
3589 | } |
4340 | } |
3590 | |
4341 | |
3591 | /*****************************************************************************/ |
4342 | /*****************************************************************************/ |
3592 | |
4343 | |
3593 | #if EV_WALK_ENABLE |
4344 | #if EV_WALK_ENABLE |
3594 | void |
4345 | void ecb_cold |
3595 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4346 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3596 | { |
4347 | { |
3597 | int i, j; |
4348 | int i, j; |
3598 | ev_watcher_list *wl, *wn; |
4349 | ev_watcher_list *wl, *wn; |
3599 | |
4350 | |
… | |
… | |
3643 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4394 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3644 | #endif |
4395 | #endif |
3645 | |
4396 | |
3646 | #if EV_IDLE_ENABLE |
4397 | #if EV_IDLE_ENABLE |
3647 | if (types & EV_IDLE) |
4398 | if (types & EV_IDLE) |
3648 | for (j = NUMPRI; i--; ) |
4399 | for (j = NUMPRI; j--; ) |
3649 | for (i = idlecnt [j]; i--; ) |
4400 | for (i = idlecnt [j]; i--; ) |
3650 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4401 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3651 | #endif |
4402 | #endif |
3652 | |
4403 | |
3653 | #if EV_FORK_ENABLE |
4404 | #if EV_FORK_ENABLE |
… | |
… | |
3661 | if (types & EV_ASYNC) |
4412 | if (types & EV_ASYNC) |
3662 | for (i = asynccnt; i--; ) |
4413 | for (i = asynccnt; i--; ) |
3663 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4414 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3664 | #endif |
4415 | #endif |
3665 | |
4416 | |
|
|
4417 | #if EV_PREPARE_ENABLE |
3666 | if (types & EV_PREPARE) |
4418 | if (types & EV_PREPARE) |
3667 | for (i = preparecnt; i--; ) |
4419 | for (i = preparecnt; i--; ) |
3668 | #if EV_EMBED_ENABLE |
4420 | # if EV_EMBED_ENABLE |
3669 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4421 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3670 | #endif |
4422 | # endif |
3671 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4423 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4424 | #endif |
3672 | |
4425 | |
|
|
4426 | #if EV_CHECK_ENABLE |
3673 | if (types & EV_CHECK) |
4427 | if (types & EV_CHECK) |
3674 | for (i = checkcnt; i--; ) |
4428 | for (i = checkcnt; i--; ) |
3675 | cb (EV_A_ EV_CHECK, checks [i]); |
4429 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4430 | #endif |
3676 | |
4431 | |
|
|
4432 | #if EV_SIGNAL_ENABLE |
3677 | if (types & EV_SIGNAL) |
4433 | if (types & EV_SIGNAL) |
3678 | for (i = 0; i < EV_NSIG - 1; ++i) |
4434 | for (i = 0; i < EV_NSIG - 1; ++i) |
3679 | for (wl = signals [i].head; wl; ) |
4435 | for (wl = signals [i].head; wl; ) |
3680 | { |
4436 | { |
3681 | wn = wl->next; |
4437 | wn = wl->next; |
3682 | cb (EV_A_ EV_SIGNAL, wl); |
4438 | cb (EV_A_ EV_SIGNAL, wl); |
3683 | wl = wn; |
4439 | wl = wn; |
3684 | } |
4440 | } |
|
|
4441 | #endif |
3685 | |
4442 | |
|
|
4443 | #if EV_CHILD_ENABLE |
3686 | if (types & EV_CHILD) |
4444 | if (types & EV_CHILD) |
3687 | for (i = EV_PID_HASHSIZE; i--; ) |
4445 | for (i = (EV_PID_HASHSIZE); i--; ) |
3688 | for (wl = childs [i]; wl; ) |
4446 | for (wl = childs [i]; wl; ) |
3689 | { |
4447 | { |
3690 | wn = wl->next; |
4448 | wn = wl->next; |
3691 | cb (EV_A_ EV_CHILD, wl); |
4449 | cb (EV_A_ EV_CHILD, wl); |
3692 | wl = wn; |
4450 | wl = wn; |
3693 | } |
4451 | } |
|
|
4452 | #endif |
3694 | /* EV_STAT 0x00001000 /* stat data changed */ |
4453 | /* EV_STAT 0x00001000 /* stat data changed */ |
3695 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4454 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3696 | } |
4455 | } |
3697 | #endif |
4456 | #endif |
3698 | |
4457 | |
3699 | #if EV_MULTIPLICITY |
4458 | #if EV_MULTIPLICITY |
3700 | #include "ev_wrap.h" |
4459 | #include "ev_wrap.h" |
3701 | #endif |
4460 | #endif |
3702 | |
4461 | |
3703 | #ifdef __cplusplus |
|
|
3704 | } |
|
|
3705 | #endif |
|
|
3706 | |
|
|