1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
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 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE 1 |
|
|
117 | # else |
|
|
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> |
|
|
168 | #include <string.h> |
158 | #include <fcntl.h> |
169 | #include <fcntl.h> |
159 | #include <stddef.h> |
170 | #include <stddef.h> |
160 | |
171 | |
161 | #include <stdio.h> |
172 | #include <stdio.h> |
162 | |
173 | |
163 | #include <assert.h> |
174 | #include <assert.h> |
164 | #include <errno.h> |
175 | #include <errno.h> |
165 | #include <sys/types.h> |
176 | #include <sys/types.h> |
166 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
167 | |
179 | |
168 | #include <signal.h> |
180 | #include <signal.h> |
169 | |
181 | |
170 | #ifdef EV_H |
182 | #ifdef EV_H |
171 | # include EV_H |
183 | # include EV_H |
… | |
… | |
182 | # define WIN32_LEAN_AND_MEAN |
194 | # define WIN32_LEAN_AND_MEAN |
183 | # include <windows.h> |
195 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
196 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
197 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
198 | # endif |
|
|
199 | # undef EV_AVOID_STDIO |
187 | #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 |
188 | |
209 | |
189 | /* 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 */ |
190 | |
211 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
212 | /* try to deduce the maximum number of signals on this platform */ |
192 | #if defined (EV_NSIG) |
213 | #if defined (EV_NSIG) |
… | |
… | |
204 | #elif defined (MAXSIG) |
225 | #elif defined (MAXSIG) |
205 | # define EV_NSIG (MAXSIG+1) |
226 | # define EV_NSIG (MAXSIG+1) |
206 | #elif defined (MAX_SIG) |
227 | #elif defined (MAX_SIG) |
207 | # define EV_NSIG (MAX_SIG+1) |
228 | # define EV_NSIG (MAX_SIG+1) |
208 | #elif defined (SIGARRAYSIZE) |
229 | #elif defined (SIGARRAYSIZE) |
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
230 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
210 | #elif defined (_sys_nsig) |
231 | #elif defined (_sys_nsig) |
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
232 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
212 | #else |
233 | #else |
213 | # error "unable to find value for NSIG, please report" |
234 | # error "unable to find value for NSIG, please report" |
214 | /* 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! :) */ |
215 | # define EV_NSIG 65 |
237 | # define EV_NSIG 65 |
|
|
238 | #endif |
|
|
239 | |
|
|
240 | #ifndef EV_USE_FLOOR |
|
|
241 | # define EV_USE_FLOOR 0 |
216 | #endif |
242 | #endif |
217 | |
243 | |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
244 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | # if __linux && __GLIBC__ >= 2 |
245 | # if __linux && __GLIBC__ >= 2 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
246 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
221 | # else |
247 | # else |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
248 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # endif |
249 | # endif |
224 | #endif |
250 | #endif |
225 | |
251 | |
226 | #ifndef EV_USE_MONOTONIC |
252 | #ifndef EV_USE_MONOTONIC |
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
253 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
228 | # define EV_USE_MONOTONIC 1 |
254 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
229 | # else |
255 | # else |
230 | # define EV_USE_MONOTONIC 0 |
256 | # define EV_USE_MONOTONIC 0 |
231 | # endif |
257 | # endif |
232 | #endif |
258 | #endif |
233 | |
259 | |
… | |
… | |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
261 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
236 | #endif |
262 | #endif |
237 | |
263 | |
238 | #ifndef EV_USE_NANOSLEEP |
264 | #ifndef EV_USE_NANOSLEEP |
239 | # if _POSIX_C_SOURCE >= 199309L |
265 | # if _POSIX_C_SOURCE >= 199309L |
240 | # define EV_USE_NANOSLEEP 1 |
266 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
241 | # else |
267 | # else |
242 | # define EV_USE_NANOSLEEP 0 |
268 | # define EV_USE_NANOSLEEP 0 |
243 | # endif |
269 | # endif |
244 | #endif |
270 | #endif |
245 | |
271 | |
246 | #ifndef EV_USE_SELECT |
272 | #ifndef EV_USE_SELECT |
247 | # define EV_USE_SELECT 1 |
273 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
248 | #endif |
274 | #endif |
249 | |
275 | |
250 | #ifndef EV_USE_POLL |
276 | #ifndef EV_USE_POLL |
251 | # ifdef _WIN32 |
277 | # ifdef _WIN32 |
252 | # define EV_USE_POLL 0 |
278 | # define EV_USE_POLL 0 |
253 | # else |
279 | # else |
254 | # define EV_USE_POLL 1 |
280 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
255 | # endif |
281 | # endif |
256 | #endif |
282 | #endif |
257 | |
283 | |
258 | #ifndef EV_USE_EPOLL |
284 | #ifndef EV_USE_EPOLL |
259 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
285 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
260 | # define EV_USE_EPOLL 1 |
286 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
261 | # else |
287 | # else |
262 | # define EV_USE_EPOLL 0 |
288 | # define EV_USE_EPOLL 0 |
263 | # endif |
289 | # endif |
264 | #endif |
290 | #endif |
265 | |
291 | |
… | |
… | |
271 | # define EV_USE_PORT 0 |
297 | # define EV_USE_PORT 0 |
272 | #endif |
298 | #endif |
273 | |
299 | |
274 | #ifndef EV_USE_INOTIFY |
300 | #ifndef EV_USE_INOTIFY |
275 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
276 | # define EV_USE_INOTIFY 1 |
302 | # define EV_USE_INOTIFY EV_FEATURE_OS |
277 | # else |
303 | # else |
278 | # define EV_USE_INOTIFY 0 |
304 | # define EV_USE_INOTIFY 0 |
279 | # endif |
305 | # endif |
280 | #endif |
306 | #endif |
281 | |
307 | |
282 | #ifndef EV_PID_HASHSIZE |
308 | #ifndef EV_PID_HASHSIZE |
283 | # if EV_MINIMAL |
309 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
284 | # define EV_PID_HASHSIZE 1 |
|
|
285 | # else |
|
|
286 | # define EV_PID_HASHSIZE 16 |
|
|
287 | # endif |
|
|
288 | #endif |
310 | #endif |
289 | |
311 | |
290 | #ifndef EV_INOTIFY_HASHSIZE |
312 | #ifndef EV_INOTIFY_HASHSIZE |
291 | # if EV_MINIMAL |
313 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
292 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
293 | # else |
|
|
294 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
295 | # endif |
|
|
296 | #endif |
314 | #endif |
297 | |
315 | |
298 | #ifndef EV_USE_EVENTFD |
316 | #ifndef EV_USE_EVENTFD |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
317 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # define EV_USE_EVENTFD 1 |
318 | # define EV_USE_EVENTFD EV_FEATURE_OS |
301 | # else |
319 | # else |
302 | # define EV_USE_EVENTFD 0 |
320 | # define EV_USE_EVENTFD 0 |
303 | # endif |
321 | # endif |
304 | #endif |
322 | #endif |
305 | |
323 | |
306 | #ifndef EV_USE_SIGNALFD |
324 | #ifndef EV_USE_SIGNALFD |
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
325 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
308 | # define EV_USE_SIGNALFD 1 |
326 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
309 | # else |
327 | # else |
310 | # define EV_USE_SIGNALFD 0 |
328 | # define EV_USE_SIGNALFD 0 |
311 | # endif |
329 | # endif |
312 | #endif |
330 | #endif |
313 | |
331 | |
… | |
… | |
316 | # define EV_USE_4HEAP 1 |
334 | # define EV_USE_4HEAP 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
335 | # define EV_HEAP_CACHE_AT 1 |
318 | #endif |
336 | #endif |
319 | |
337 | |
320 | #ifndef EV_VERIFY |
338 | #ifndef EV_VERIFY |
321 | # define EV_VERIFY !EV_MINIMAL |
339 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
322 | #endif |
340 | #endif |
323 | |
341 | |
324 | #ifndef EV_USE_4HEAP |
342 | #ifndef EV_USE_4HEAP |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
343 | # define EV_USE_4HEAP EV_FEATURE_DATA |
326 | #endif |
344 | #endif |
327 | |
345 | |
328 | #ifndef EV_HEAP_CACHE_AT |
346 | #ifndef EV_HEAP_CACHE_AT |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
347 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
330 | #endif |
348 | #endif |
331 | |
349 | |
332 | /* 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, */ |
333 | /* which makes programs even slower. might work on other unices, too. */ |
351 | /* which makes programs even slower. might work on other unices, too. */ |
334 | #if EV_USE_CLOCK_SYSCALL |
352 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
343 | # endif |
361 | # endif |
344 | #endif |
362 | #endif |
345 | |
363 | |
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
364 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | |
365 | |
|
|
366 | #ifdef _AIX |
|
|
367 | /* AIX has a completely broken poll.h header */ |
|
|
368 | # undef EV_USE_POLL |
|
|
369 | # define EV_USE_POLL 0 |
|
|
370 | #endif |
|
|
371 | |
348 | #ifndef CLOCK_MONOTONIC |
372 | #ifndef CLOCK_MONOTONIC |
349 | # undef EV_USE_MONOTONIC |
373 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 0 |
374 | # define EV_USE_MONOTONIC 0 |
351 | #endif |
375 | #endif |
352 | |
376 | |
… | |
… | |
359 | # undef EV_USE_INOTIFY |
383 | # undef EV_USE_INOTIFY |
360 | # define EV_USE_INOTIFY 0 |
384 | # define EV_USE_INOTIFY 0 |
361 | #endif |
385 | #endif |
362 | |
386 | |
363 | #if !EV_USE_NANOSLEEP |
387 | #if !EV_USE_NANOSLEEP |
364 | # ifndef _WIN32 |
388 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
389 | # if !defined(_WIN32) && !defined(__hpux) |
365 | # include <sys/select.h> |
390 | # include <sys/select.h> |
366 | # endif |
391 | # endif |
367 | #endif |
392 | #endif |
368 | |
393 | |
369 | #if EV_USE_INOTIFY |
394 | #if EV_USE_INOTIFY |
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
395 | # include <sys/statfs.h> |
372 | # include <sys/inotify.h> |
396 | # include <sys/inotify.h> |
373 | /* 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 */ |
374 | # ifndef IN_DONT_FOLLOW |
398 | # ifndef IN_DONT_FOLLOW |
375 | # undef EV_USE_INOTIFY |
399 | # undef EV_USE_INOTIFY |
… | |
… | |
392 | # define EFD_CLOEXEC O_CLOEXEC |
416 | # define EFD_CLOEXEC O_CLOEXEC |
393 | # else |
417 | # else |
394 | # define EFD_CLOEXEC 02000000 |
418 | # define EFD_CLOEXEC 02000000 |
395 | # endif |
419 | # endif |
396 | # endif |
420 | # endif |
397 | # ifdef __cplusplus |
421 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
398 | extern "C" { |
422 | #endif |
|
|
423 | |
|
|
424 | #if EV_USE_SIGNALFD |
|
|
425 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
426 | # include <stdint.h> |
|
|
427 | # ifndef SFD_NONBLOCK |
|
|
428 | # define SFD_NONBLOCK O_NONBLOCK |
399 | # endif |
429 | # endif |
400 | int eventfd (unsigned int initval, int flags); |
430 | # ifndef SFD_CLOEXEC |
401 | # ifdef __cplusplus |
431 | # ifdef O_CLOEXEC |
402 | } |
432 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
433 | # else |
|
|
434 | # define SFD_CLOEXEC 02000000 |
|
|
435 | # endif |
403 | # endif |
436 | # endif |
404 | #endif |
437 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
405 | |
438 | |
406 | #if EV_USE_SIGNALFD |
439 | struct signalfd_siginfo |
407 | # include <sys/signalfd.h> |
440 | { |
|
|
441 | uint32_t ssi_signo; |
|
|
442 | char pad[128 - sizeof (uint32_t)]; |
|
|
443 | }; |
408 | #endif |
444 | #endif |
409 | |
445 | |
410 | /**/ |
446 | /**/ |
411 | |
447 | |
412 | #if EV_VERIFY >= 3 |
448 | #if EV_VERIFY >= 3 |
413 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
449 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
414 | #else |
450 | #else |
415 | # define EV_FREQUENT_CHECK do { } while (0) |
451 | # define EV_FREQUENT_CHECK do { } while (0) |
416 | #endif |
452 | #endif |
417 | |
453 | |
418 | /* |
454 | /* |
419 | * This is used to avoid floating point rounding problems. |
455 | * This is used to work around floating point rounding problems. |
420 | * It is added to ev_rt_now when scheduling periodics |
|
|
421 | * to ensure progress, time-wise, even when rounding |
|
|
422 | * errors are against us. |
|
|
423 | * This value is good at least till the year 4000. |
456 | * This value is good at least till the year 4000. |
424 | * Better solutions welcome. |
|
|
425 | */ |
457 | */ |
426 | #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 */ |
427 | |
460 | |
428 | #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) */ |
429 | #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) */ |
430 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
431 | |
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 (©) 2009-2011 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; |
432 | #if __GNUC__ >= 4 |
508 | #if __GNUC__ |
433 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
509 | typedef signed long long int64_t; |
434 | # 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 |
435 | #else |
515 | #else |
436 | # define expect(expr,value) (expr) |
516 | #include <inttypes.h> |
437 | # define noinline |
|
|
438 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
439 | # define inline |
|
|
440 | # 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))) |
441 | #endif |
531 | #endif |
|
|
532 | #endif |
442 | |
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__) |
|
|
545 | #if __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 |
|
|
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 | #endif |
|
|
562 | #endif |
|
|
563 | #endif |
|
|
564 | |
|
|
565 | #ifndef ECB_MEMORY_FENCE |
|
|
566 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
|
|
567 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
568 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
569 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
570 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
571 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
572 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
573 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
574 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
575 | #elif defined(_WIN32) |
|
|
576 | #include <WinNT.h> |
|
|
577 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
578 | #endif |
|
|
579 | #endif |
|
|
580 | |
|
|
581 | #ifndef ECB_MEMORY_FENCE |
|
|
582 | #if !ECB_AVOID_PTHREADS |
|
|
583 | /* |
|
|
584 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
585 | * or failure to find pthread.h, then you should implement |
|
|
586 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
587 | * OR provide pthread.h and link against the posix thread library |
|
|
588 | * of your system. |
|
|
589 | */ |
|
|
590 | #include <pthread.h> |
|
|
591 | #define ECB_NEEDS_PTHREADS 1 |
|
|
592 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
593 | |
|
|
594 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
595 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
596 | #endif |
|
|
597 | #endif |
|
|
598 | |
|
|
599 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
600 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
601 | #endif |
|
|
602 | |
|
|
603 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
604 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
605 | #endif |
|
|
606 | |
|
|
607 | /*****************************************************************************/ |
|
|
608 | |
|
|
609 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
610 | |
|
|
611 | #if __cplusplus |
|
|
612 | #define ecb_inline static inline |
|
|
613 | #elif ECB_GCC_VERSION(2,5) |
|
|
614 | #define ecb_inline static __inline__ |
|
|
615 | #elif ECB_C99 |
|
|
616 | #define ecb_inline static inline |
|
|
617 | #else |
|
|
618 | #define ecb_inline static |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | #if ECB_GCC_VERSION(3,3) |
|
|
622 | #define ecb_restrict __restrict__ |
|
|
623 | #elif ECB_C99 |
|
|
624 | #define ecb_restrict restrict |
|
|
625 | #else |
|
|
626 | #define ecb_restrict |
|
|
627 | #endif |
|
|
628 | |
|
|
629 | typedef int ecb_bool; |
|
|
630 | |
|
|
631 | #define ECB_CONCAT_(a, b) a ## b |
|
|
632 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
633 | #define ECB_STRINGIFY_(a) # a |
|
|
634 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
635 | |
|
|
636 | #define ecb_function_ ecb_inline |
|
|
637 | |
|
|
638 | #if ECB_GCC_VERSION(3,1) |
|
|
639 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
640 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
641 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
642 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
643 | #else |
|
|
644 | #define ecb_attribute(attrlist) |
|
|
645 | #define ecb_is_constant(expr) 0 |
|
|
646 | #define ecb_expect(expr,value) (expr) |
|
|
647 | #define ecb_prefetch(addr,rw,locality) |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | /* no emulation for ecb_decltype */ |
|
|
651 | #if ECB_GCC_VERSION(4,5) |
|
|
652 | #define ecb_decltype(x) __decltype(x) |
|
|
653 | #elif ECB_GCC_VERSION(3,0) |
|
|
654 | #define ecb_decltype(x) __typeof(x) |
|
|
655 | #endif |
|
|
656 | |
|
|
657 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
658 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
659 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
660 | #define ecb_const ecb_attribute ((__const__)) |
|
|
661 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
662 | |
|
|
663 | #if ECB_GCC_VERSION(4,3) |
|
|
664 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
665 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
666 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
667 | #else |
|
|
668 | #define ecb_artificial |
|
|
669 | #define ecb_hot |
|
|
670 | #define ecb_cold |
|
|
671 | #endif |
|
|
672 | |
|
|
673 | /* put around conditional expressions if you are very sure that the */ |
|
|
674 | /* expression is mostly true or mostly false. note that these return */ |
|
|
675 | /* booleans, not the expression. */ |
443 | #define expect_false(expr) expect ((expr) != 0, 0) |
676 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
444 | #define expect_true(expr) expect ((expr) != 0, 1) |
677 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
678 | /* for compatibility to the rest of the world */ |
|
|
679 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
680 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
681 | |
|
|
682 | /* count trailing zero bits and count # of one bits */ |
|
|
683 | #if ECB_GCC_VERSION(3,4) |
|
|
684 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
685 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
686 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
687 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
688 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
689 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
690 | /* no popcountll */ |
|
|
691 | #else |
|
|
692 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
693 | ecb_function_ int |
|
|
694 | ecb_ctz32 (uint32_t x) |
|
|
695 | { |
|
|
696 | int r = 0; |
|
|
697 | |
|
|
698 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
699 | |
|
|
700 | #if ECB_branchless_on_i386 |
|
|
701 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
702 | r += !!(x & 0xcccccccc) << 1; |
|
|
703 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
704 | r += !!(x & 0xff00ff00) << 3; |
|
|
705 | r += !!(x & 0xffff0000) << 4; |
|
|
706 | #else |
|
|
707 | if (x & 0xaaaaaaaa) r += 1; |
|
|
708 | if (x & 0xcccccccc) r += 2; |
|
|
709 | if (x & 0xf0f0f0f0) r += 4; |
|
|
710 | if (x & 0xff00ff00) r += 8; |
|
|
711 | if (x & 0xffff0000) r += 16; |
|
|
712 | #endif |
|
|
713 | |
|
|
714 | return r; |
|
|
715 | } |
|
|
716 | |
|
|
717 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
718 | ecb_function_ int |
|
|
719 | ecb_ctz64 (uint64_t x) |
|
|
720 | { |
|
|
721 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
722 | return ecb_ctz32 (x >> shift) + shift; |
|
|
723 | } |
|
|
724 | |
|
|
725 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
726 | ecb_function_ int |
|
|
727 | ecb_popcount32 (uint32_t x) |
|
|
728 | { |
|
|
729 | x -= (x >> 1) & 0x55555555; |
|
|
730 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
731 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
732 | x *= 0x01010101; |
|
|
733 | |
|
|
734 | return x >> 24; |
|
|
735 | } |
|
|
736 | |
|
|
737 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
738 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
739 | { |
|
|
740 | int r = 0; |
|
|
741 | |
|
|
742 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
743 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
744 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
745 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
746 | if (x >> 1) { r += 1; } |
|
|
747 | |
|
|
748 | return r; |
|
|
749 | } |
|
|
750 | |
|
|
751 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
752 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
753 | { |
|
|
754 | int r = 0; |
|
|
755 | |
|
|
756 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
757 | |
|
|
758 | return r + ecb_ld32 (x); |
|
|
759 | } |
|
|
760 | #endif |
|
|
761 | |
|
|
762 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
763 | /* so for this version we are lazy */ |
|
|
764 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
765 | ecb_function_ int |
|
|
766 | ecb_popcount64 (uint64_t x) |
|
|
767 | { |
|
|
768 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
769 | } |
|
|
770 | |
|
|
771 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
772 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
773 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
774 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
775 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
776 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
777 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
778 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
779 | |
|
|
780 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
781 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
782 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
783 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
784 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
785 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
786 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
787 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
788 | |
|
|
789 | #if ECB_GCC_VERSION(4,3) |
|
|
790 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
791 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
792 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
793 | #else |
|
|
794 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
795 | ecb_function_ uint16_t |
|
|
796 | ecb_bswap16 (uint16_t x) |
|
|
797 | { |
|
|
798 | return ecb_rotl16 (x, 8); |
|
|
799 | } |
|
|
800 | |
|
|
801 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
802 | ecb_function_ uint32_t |
|
|
803 | ecb_bswap32 (uint32_t x) |
|
|
804 | { |
|
|
805 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
806 | } |
|
|
807 | |
|
|
808 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
809 | ecb_function_ uint64_t |
|
|
810 | ecb_bswap64 (uint64_t x) |
|
|
811 | { |
|
|
812 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
813 | } |
|
|
814 | #endif |
|
|
815 | |
|
|
816 | #if ECB_GCC_VERSION(4,5) |
|
|
817 | #define ecb_unreachable() __builtin_unreachable () |
|
|
818 | #else |
|
|
819 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
820 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
821 | ecb_function_ void ecb_unreachable (void) { } |
|
|
822 | #endif |
|
|
823 | |
|
|
824 | /* try to tell the compiler that some condition is definitely true */ |
|
|
825 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
826 | |
|
|
827 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
828 | ecb_function_ unsigned char |
|
|
829 | ecb_byteorder_helper (void) |
|
|
830 | { |
|
|
831 | const uint32_t u = 0x11223344; |
|
|
832 | return *(unsigned char *)&u; |
|
|
833 | } |
|
|
834 | |
|
|
835 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
836 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
837 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
838 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
839 | |
|
|
840 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
841 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
842 | #else |
|
|
843 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
844 | #endif |
|
|
845 | |
|
|
846 | #if __cplusplus |
|
|
847 | template<typename T> |
|
|
848 | static inline T ecb_div_rd (T val, T div) |
|
|
849 | { |
|
|
850 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
851 | } |
|
|
852 | template<typename T> |
|
|
853 | static inline T ecb_div_ru (T val, T div) |
|
|
854 | { |
|
|
855 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
856 | } |
|
|
857 | #else |
|
|
858 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
859 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
860 | #endif |
|
|
861 | |
|
|
862 | #if ecb_cplusplus_does_not_suck |
|
|
863 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
864 | template<typename T, int N> |
|
|
865 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
866 | { |
|
|
867 | return N; |
|
|
868 | } |
|
|
869 | #else |
|
|
870 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
871 | #endif |
|
|
872 | |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | /* ECB.H END */ |
|
|
876 | |
|
|
877 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
878 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
879 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
880 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
881 | * libev, in which cases the memory fences become nops. |
|
|
882 | * alternatively, you can remove this #error and link against libpthread, |
|
|
883 | * which will then provide the memory fences. |
|
|
884 | */ |
|
|
885 | # error "memory fences not defined for your architecture, please report" |
|
|
886 | #endif |
|
|
887 | |
|
|
888 | #ifndef ECB_MEMORY_FENCE |
|
|
889 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
890 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
891 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
892 | #endif |
|
|
893 | |
|
|
894 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
895 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
896 | #define noinline ecb_noinline |
|
|
897 | |
445 | #define inline_size static inline |
898 | #define inline_size ecb_inline |
446 | |
899 | |
447 | #if EV_MINIMAL |
900 | #if EV_FEATURE_CODE |
|
|
901 | # define inline_speed ecb_inline |
|
|
902 | #else |
448 | # define inline_speed static noinline |
903 | # define inline_speed static noinline |
449 | #else |
|
|
450 | # define inline_speed static inline |
|
|
451 | #endif |
904 | #endif |
452 | |
905 | |
453 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
906 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
454 | |
907 | |
455 | #if EV_MINPRI == EV_MAXPRI |
908 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
468 | #define ev_active(w) ((W)(w))->active |
921 | #define ev_active(w) ((W)(w))->active |
469 | #define ev_at(w) ((WT)(w))->at |
922 | #define ev_at(w) ((WT)(w))->at |
470 | |
923 | |
471 | #if EV_USE_REALTIME |
924 | #if EV_USE_REALTIME |
472 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
925 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
473 | /* giving it a reasonably high chance of working on typical architetcures */ |
926 | /* giving it a reasonably high chance of working on typical architectures */ |
474 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
927 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
475 | #endif |
928 | #endif |
476 | |
929 | |
477 | #if EV_USE_MONOTONIC |
930 | #if EV_USE_MONOTONIC |
478 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
931 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
480 | |
933 | |
481 | #ifndef EV_FD_TO_WIN32_HANDLE |
934 | #ifndef EV_FD_TO_WIN32_HANDLE |
482 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
935 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
483 | #endif |
936 | #endif |
484 | #ifndef EV_WIN32_HANDLE_TO_FD |
937 | #ifndef EV_WIN32_HANDLE_TO_FD |
485 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
938 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
486 | #endif |
939 | #endif |
487 | #ifndef EV_WIN32_CLOSE_FD |
940 | #ifndef EV_WIN32_CLOSE_FD |
488 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
941 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
489 | #endif |
942 | #endif |
490 | |
943 | |
… | |
… | |
492 | # include "ev_win32.c" |
945 | # include "ev_win32.c" |
493 | #endif |
946 | #endif |
494 | |
947 | |
495 | /*****************************************************************************/ |
948 | /*****************************************************************************/ |
496 | |
949 | |
|
|
950 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
951 | |
|
|
952 | #if EV_USE_FLOOR |
|
|
953 | # include <math.h> |
|
|
954 | # define ev_floor(v) floor (v) |
|
|
955 | #else |
|
|
956 | |
|
|
957 | #include <float.h> |
|
|
958 | |
|
|
959 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
960 | static ev_tstamp noinline |
|
|
961 | ev_floor (ev_tstamp v) |
|
|
962 | { |
|
|
963 | /* the choice of shift factor is not terribly important */ |
|
|
964 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
965 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
966 | #else |
|
|
967 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
968 | #endif |
|
|
969 | |
|
|
970 | /* argument too large for an unsigned long? */ |
|
|
971 | if (expect_false (v >= shift)) |
|
|
972 | { |
|
|
973 | ev_tstamp f; |
|
|
974 | |
|
|
975 | if (v == v - 1.) |
|
|
976 | return v; /* very large number */ |
|
|
977 | |
|
|
978 | f = shift * ev_floor (v * (1. / shift)); |
|
|
979 | return f + ev_floor (v - f); |
|
|
980 | } |
|
|
981 | |
|
|
982 | /* special treatment for negative args? */ |
|
|
983 | if (expect_false (v < 0.)) |
|
|
984 | { |
|
|
985 | ev_tstamp f = -ev_floor (-v); |
|
|
986 | |
|
|
987 | return f - (f == v ? 0 : 1); |
|
|
988 | } |
|
|
989 | |
|
|
990 | /* fits into an unsigned long */ |
|
|
991 | return (unsigned long)v; |
|
|
992 | } |
|
|
993 | |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | /*****************************************************************************/ |
|
|
997 | |
|
|
998 | #ifdef __linux |
|
|
999 | # include <sys/utsname.h> |
|
|
1000 | #endif |
|
|
1001 | |
|
|
1002 | static unsigned int noinline ecb_cold |
|
|
1003 | ev_linux_version (void) |
|
|
1004 | { |
|
|
1005 | #ifdef __linux |
|
|
1006 | unsigned int v = 0; |
|
|
1007 | struct utsname buf; |
|
|
1008 | int i; |
|
|
1009 | char *p = buf.release; |
|
|
1010 | |
|
|
1011 | if (uname (&buf)) |
|
|
1012 | return 0; |
|
|
1013 | |
|
|
1014 | for (i = 3+1; --i; ) |
|
|
1015 | { |
|
|
1016 | unsigned int c = 0; |
|
|
1017 | |
|
|
1018 | for (;;) |
|
|
1019 | { |
|
|
1020 | if (*p >= '0' && *p <= '9') |
|
|
1021 | c = c * 10 + *p++ - '0'; |
|
|
1022 | else |
|
|
1023 | { |
|
|
1024 | p += *p == '.'; |
|
|
1025 | break; |
|
|
1026 | } |
|
|
1027 | } |
|
|
1028 | |
|
|
1029 | v = (v << 8) | c; |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | return v; |
|
|
1033 | #else |
|
|
1034 | return 0; |
|
|
1035 | #endif |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | /*****************************************************************************/ |
|
|
1039 | |
|
|
1040 | #if EV_AVOID_STDIO |
|
|
1041 | static void noinline ecb_cold |
|
|
1042 | ev_printerr (const char *msg) |
|
|
1043 | { |
|
|
1044 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1045 | } |
|
|
1046 | #endif |
|
|
1047 | |
497 | static void (*syserr_cb)(const char *msg); |
1048 | static void (*syserr_cb)(const char *msg); |
498 | |
1049 | |
499 | void |
1050 | void ecb_cold |
500 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1051 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
501 | { |
1052 | { |
502 | syserr_cb = cb; |
1053 | syserr_cb = cb; |
503 | } |
1054 | } |
504 | |
1055 | |
505 | static void noinline |
1056 | static void noinline ecb_cold |
506 | ev_syserr (const char *msg) |
1057 | ev_syserr (const char *msg) |
507 | { |
1058 | { |
508 | if (!msg) |
1059 | if (!msg) |
509 | msg = "(libev) system error"; |
1060 | msg = "(libev) system error"; |
510 | |
1061 | |
511 | if (syserr_cb) |
1062 | if (syserr_cb) |
512 | syserr_cb (msg); |
1063 | syserr_cb (msg); |
513 | else |
1064 | else |
514 | { |
1065 | { |
|
|
1066 | #if EV_AVOID_STDIO |
|
|
1067 | ev_printerr (msg); |
|
|
1068 | ev_printerr (": "); |
|
|
1069 | ev_printerr (strerror (errno)); |
|
|
1070 | ev_printerr ("\n"); |
|
|
1071 | #else |
515 | perror (msg); |
1072 | perror (msg); |
|
|
1073 | #endif |
516 | abort (); |
1074 | abort (); |
517 | } |
1075 | } |
518 | } |
1076 | } |
519 | |
1077 | |
520 | static void * |
1078 | static void * |
521 | ev_realloc_emul (void *ptr, long size) |
1079 | ev_realloc_emul (void *ptr, long size) |
522 | { |
1080 | { |
|
|
1081 | #if __GLIBC__ |
|
|
1082 | return realloc (ptr, size); |
|
|
1083 | #else |
523 | /* some systems, notably openbsd and darwin, fail to properly |
1084 | /* some systems, notably openbsd and darwin, fail to properly |
524 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1085 | * implement realloc (x, 0) (as required by both ansi c-89 and |
525 | * the single unix specification, so work around them here. |
1086 | * the single unix specification, so work around them here. |
526 | */ |
1087 | */ |
527 | |
1088 | |
528 | if (size) |
1089 | if (size) |
529 | return realloc (ptr, size); |
1090 | return realloc (ptr, size); |
530 | |
1091 | |
531 | free (ptr); |
1092 | free (ptr); |
532 | return 0; |
1093 | return 0; |
|
|
1094 | #endif |
533 | } |
1095 | } |
534 | |
1096 | |
535 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1097 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
536 | |
1098 | |
537 | void |
1099 | void ecb_cold |
538 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1100 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
539 | { |
1101 | { |
540 | alloc = cb; |
1102 | alloc = cb; |
541 | } |
1103 | } |
542 | |
1104 | |
… | |
… | |
545 | { |
1107 | { |
546 | ptr = alloc (ptr, size); |
1108 | ptr = alloc (ptr, size); |
547 | |
1109 | |
548 | if (!ptr && size) |
1110 | if (!ptr && size) |
549 | { |
1111 | { |
|
|
1112 | #if EV_AVOID_STDIO |
|
|
1113 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1114 | #else |
550 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1115 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1116 | #endif |
551 | abort (); |
1117 | abort (); |
552 | } |
1118 | } |
553 | |
1119 | |
554 | return ptr; |
1120 | return ptr; |
555 | } |
1121 | } |
… | |
… | |
571 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1137 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
572 | unsigned char unused; |
1138 | unsigned char unused; |
573 | #if EV_USE_EPOLL |
1139 | #if EV_USE_EPOLL |
574 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1140 | unsigned int egen; /* generation counter to counter epoll bugs */ |
575 | #endif |
1141 | #endif |
576 | #if EV_SELECT_IS_WINSOCKET |
1142 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
577 | SOCKET handle; |
1143 | SOCKET handle; |
|
|
1144 | #endif |
|
|
1145 | #if EV_USE_IOCP |
|
|
1146 | OVERLAPPED or, ow; |
578 | #endif |
1147 | #endif |
579 | } ANFD; |
1148 | } ANFD; |
580 | |
1149 | |
581 | /* stores the pending event set for a given watcher */ |
1150 | /* stores the pending event set for a given watcher */ |
582 | typedef struct |
1151 | typedef struct |
… | |
… | |
624 | #undef VAR |
1193 | #undef VAR |
625 | }; |
1194 | }; |
626 | #include "ev_wrap.h" |
1195 | #include "ev_wrap.h" |
627 | |
1196 | |
628 | static struct ev_loop default_loop_struct; |
1197 | static struct ev_loop default_loop_struct; |
629 | struct ev_loop *ev_default_loop_ptr; |
1198 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
630 | |
1199 | |
631 | #else |
1200 | #else |
632 | |
1201 | |
633 | ev_tstamp ev_rt_now; |
1202 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
634 | #define VAR(name,decl) static decl; |
1203 | #define VAR(name,decl) static decl; |
635 | #include "ev_vars.h" |
1204 | #include "ev_vars.h" |
636 | #undef VAR |
1205 | #undef VAR |
637 | |
1206 | |
638 | static int ev_default_loop_ptr; |
1207 | static int ev_default_loop_ptr; |
639 | |
1208 | |
640 | #endif |
1209 | #endif |
641 | |
1210 | |
642 | #if EV_MINIMAL < 2 |
1211 | #if EV_FEATURE_API |
643 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1212 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
644 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1213 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
645 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1214 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
646 | #else |
1215 | #else |
647 | # define EV_RELEASE_CB (void)0 |
1216 | # define EV_RELEASE_CB (void)0 |
648 | # define EV_ACQUIRE_CB (void)0 |
1217 | # define EV_ACQUIRE_CB (void)0 |
649 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1218 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
650 | #endif |
1219 | #endif |
651 | |
1220 | |
652 | #define EVUNLOOP_RECURSE 0x80 |
1221 | #define EVBREAK_RECURSE 0x80 |
653 | |
1222 | |
654 | /*****************************************************************************/ |
1223 | /*****************************************************************************/ |
655 | |
1224 | |
656 | #ifndef EV_HAVE_EV_TIME |
1225 | #ifndef EV_HAVE_EV_TIME |
657 | ev_tstamp |
1226 | ev_tstamp |
… | |
… | |
701 | if (delay > 0.) |
1270 | if (delay > 0.) |
702 | { |
1271 | { |
703 | #if EV_USE_NANOSLEEP |
1272 | #if EV_USE_NANOSLEEP |
704 | struct timespec ts; |
1273 | struct timespec ts; |
705 | |
1274 | |
706 | ts.tv_sec = (time_t)delay; |
1275 | EV_TS_SET (ts, delay); |
707 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
708 | |
|
|
709 | nanosleep (&ts, 0); |
1276 | nanosleep (&ts, 0); |
710 | #elif defined(_WIN32) |
1277 | #elif defined(_WIN32) |
711 | Sleep ((unsigned long)(delay * 1e3)); |
1278 | Sleep ((unsigned long)(delay * 1e3)); |
712 | #else |
1279 | #else |
713 | struct timeval tv; |
1280 | struct timeval tv; |
714 | |
1281 | |
715 | tv.tv_sec = (time_t)delay; |
|
|
716 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
717 | |
|
|
718 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1282 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
719 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1283 | /* something not guaranteed by newer posix versions, but guaranteed */ |
720 | /* by older ones */ |
1284 | /* by older ones */ |
|
|
1285 | EV_TV_SET (tv, delay); |
721 | select (0, 0, 0, 0, &tv); |
1286 | select (0, 0, 0, 0, &tv); |
722 | #endif |
1287 | #endif |
723 | } |
1288 | } |
724 | } |
1289 | } |
725 | |
1290 | |
726 | /*****************************************************************************/ |
1291 | /*****************************************************************************/ |
727 | |
1292 | |
728 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1293 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
729 | |
1294 | |
730 | /* find a suitable new size for the given array, */ |
1295 | /* find a suitable new size for the given array, */ |
731 | /* hopefully by rounding to a ncie-to-malloc size */ |
1296 | /* hopefully by rounding to a nice-to-malloc size */ |
732 | inline_size int |
1297 | inline_size int |
733 | array_nextsize (int elem, int cur, int cnt) |
1298 | array_nextsize (int elem, int cur, int cnt) |
734 | { |
1299 | { |
735 | int ncur = cur + 1; |
1300 | int ncur = cur + 1; |
736 | |
1301 | |
737 | do |
1302 | do |
738 | ncur <<= 1; |
1303 | ncur <<= 1; |
739 | while (cnt > ncur); |
1304 | while (cnt > ncur); |
740 | |
1305 | |
741 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1306 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
742 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1307 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
743 | { |
1308 | { |
744 | ncur *= elem; |
1309 | ncur *= elem; |
745 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1310 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
746 | ncur = ncur - sizeof (void *) * 4; |
1311 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
748 | } |
1313 | } |
749 | |
1314 | |
750 | return ncur; |
1315 | return ncur; |
751 | } |
1316 | } |
752 | |
1317 | |
753 | static noinline void * |
1318 | static void * noinline ecb_cold |
754 | array_realloc (int elem, void *base, int *cur, int cnt) |
1319 | array_realloc (int elem, void *base, int *cur, int cnt) |
755 | { |
1320 | { |
756 | *cur = array_nextsize (elem, *cur, cnt); |
1321 | *cur = array_nextsize (elem, *cur, cnt); |
757 | return ev_realloc (base, elem * *cur); |
1322 | return ev_realloc (base, elem * *cur); |
758 | } |
1323 | } |
… | |
… | |
761 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1326 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
762 | |
1327 | |
763 | #define array_needsize(type,base,cur,cnt,init) \ |
1328 | #define array_needsize(type,base,cur,cnt,init) \ |
764 | if (expect_false ((cnt) > (cur))) \ |
1329 | if (expect_false ((cnt) > (cur))) \ |
765 | { \ |
1330 | { \ |
766 | int ocur_ = (cur); \ |
1331 | int ecb_unused ocur_ = (cur); \ |
767 | (base) = (type *)array_realloc \ |
1332 | (base) = (type *)array_realloc \ |
768 | (sizeof (type), (base), &(cur), (cnt)); \ |
1333 | (sizeof (type), (base), &(cur), (cnt)); \ |
769 | init ((base) + (ocur_), (cur) - ocur_); \ |
1334 | init ((base) + (ocur_), (cur) - ocur_); \ |
770 | } |
1335 | } |
771 | |
1336 | |
… | |
… | |
832 | } |
1397 | } |
833 | |
1398 | |
834 | /*****************************************************************************/ |
1399 | /*****************************************************************************/ |
835 | |
1400 | |
836 | inline_speed void |
1401 | inline_speed void |
837 | fd_event_nc (EV_P_ int fd, int revents) |
1402 | fd_event_nocheck (EV_P_ int fd, int revents) |
838 | { |
1403 | { |
839 | ANFD *anfd = anfds + fd; |
1404 | ANFD *anfd = anfds + fd; |
840 | ev_io *w; |
1405 | ev_io *w; |
841 | |
1406 | |
842 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1407 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
854 | fd_event (EV_P_ int fd, int revents) |
1419 | fd_event (EV_P_ int fd, int revents) |
855 | { |
1420 | { |
856 | ANFD *anfd = anfds + fd; |
1421 | ANFD *anfd = anfds + fd; |
857 | |
1422 | |
858 | if (expect_true (!anfd->reify)) |
1423 | if (expect_true (!anfd->reify)) |
859 | fd_event_nc (EV_A_ fd, revents); |
1424 | fd_event_nocheck (EV_A_ fd, revents); |
860 | } |
1425 | } |
861 | |
1426 | |
862 | void |
1427 | void |
863 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1428 | ev_feed_fd_event (EV_P_ int fd, int revents) |
864 | { |
1429 | { |
865 | if (fd >= 0 && fd < anfdmax) |
1430 | if (fd >= 0 && fd < anfdmax) |
866 | fd_event_nc (EV_A_ fd, revents); |
1431 | fd_event_nocheck (EV_A_ fd, revents); |
867 | } |
1432 | } |
868 | |
1433 | |
869 | /* make sure the external fd watch events are in-sync */ |
1434 | /* make sure the external fd watch events are in-sync */ |
870 | /* with the kernel/libev internal state */ |
1435 | /* with the kernel/libev internal state */ |
871 | inline_size void |
1436 | inline_size void |
872 | fd_reify (EV_P) |
1437 | fd_reify (EV_P) |
873 | { |
1438 | { |
874 | int i; |
1439 | int i; |
875 | |
1440 | |
|
|
1441 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1442 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1443 | { |
|
|
1444 | int fd = fdchanges [i]; |
|
|
1445 | ANFD *anfd = anfds + fd; |
|
|
1446 | |
|
|
1447 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1448 | { |
|
|
1449 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1450 | |
|
|
1451 | if (handle != anfd->handle) |
|
|
1452 | { |
|
|
1453 | unsigned long arg; |
|
|
1454 | |
|
|
1455 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1456 | |
|
|
1457 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1458 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1459 | anfd->events = 0; |
|
|
1460 | anfd->handle = handle; |
|
|
1461 | } |
|
|
1462 | } |
|
|
1463 | } |
|
|
1464 | #endif |
|
|
1465 | |
876 | for (i = 0; i < fdchangecnt; ++i) |
1466 | for (i = 0; i < fdchangecnt; ++i) |
877 | { |
1467 | { |
878 | int fd = fdchanges [i]; |
1468 | int fd = fdchanges [i]; |
879 | ANFD *anfd = anfds + fd; |
1469 | ANFD *anfd = anfds + fd; |
880 | ev_io *w; |
1470 | ev_io *w; |
881 | |
1471 | |
882 | unsigned char events = 0; |
1472 | unsigned char o_events = anfd->events; |
|
|
1473 | unsigned char o_reify = anfd->reify; |
883 | |
1474 | |
884 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1475 | anfd->reify = 0; |
885 | events |= (unsigned char)w->events; |
|
|
886 | |
1476 | |
887 | #if EV_SELECT_IS_WINSOCKET |
1477 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
888 | if (events) |
|
|
889 | { |
1478 | { |
890 | unsigned long arg; |
1479 | anfd->events = 0; |
891 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1480 | |
892 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1481 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1482 | anfd->events |= (unsigned char)w->events; |
|
|
1483 | |
|
|
1484 | if (o_events != anfd->events) |
|
|
1485 | o_reify = EV__IOFDSET; /* actually |= */ |
893 | } |
1486 | } |
894 | #endif |
|
|
895 | |
1487 | |
896 | { |
1488 | if (o_reify & EV__IOFDSET) |
897 | unsigned char o_events = anfd->events; |
|
|
898 | unsigned char o_reify = anfd->reify; |
|
|
899 | |
|
|
900 | anfd->reify = 0; |
|
|
901 | anfd->events = events; |
|
|
902 | |
|
|
903 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
904 | backend_modify (EV_A_ fd, o_events, events); |
1489 | backend_modify (EV_A_ fd, o_events, anfd->events); |
905 | } |
|
|
906 | } |
1490 | } |
907 | |
1491 | |
908 | fdchangecnt = 0; |
1492 | fdchangecnt = 0; |
909 | } |
1493 | } |
910 | |
1494 | |
… | |
… | |
922 | fdchanges [fdchangecnt - 1] = fd; |
1506 | fdchanges [fdchangecnt - 1] = fd; |
923 | } |
1507 | } |
924 | } |
1508 | } |
925 | |
1509 | |
926 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1510 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
927 | inline_speed void |
1511 | inline_speed void ecb_cold |
928 | fd_kill (EV_P_ int fd) |
1512 | fd_kill (EV_P_ int fd) |
929 | { |
1513 | { |
930 | ev_io *w; |
1514 | ev_io *w; |
931 | |
1515 | |
932 | while ((w = (ev_io *)anfds [fd].head)) |
1516 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
934 | ev_io_stop (EV_A_ w); |
1518 | ev_io_stop (EV_A_ w); |
935 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1519 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
936 | } |
1520 | } |
937 | } |
1521 | } |
938 | |
1522 | |
939 | /* check whether the given fd is atcually valid, for error recovery */ |
1523 | /* check whether the given fd is actually valid, for error recovery */ |
940 | inline_size int |
1524 | inline_size int ecb_cold |
941 | fd_valid (int fd) |
1525 | fd_valid (int fd) |
942 | { |
1526 | { |
943 | #ifdef _WIN32 |
1527 | #ifdef _WIN32 |
944 | return _get_osfhandle (fd) != -1; |
1528 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
945 | #else |
1529 | #else |
946 | return fcntl (fd, F_GETFD) != -1; |
1530 | return fcntl (fd, F_GETFD) != -1; |
947 | #endif |
1531 | #endif |
948 | } |
1532 | } |
949 | |
1533 | |
950 | /* called on EBADF to verify fds */ |
1534 | /* called on EBADF to verify fds */ |
951 | static void noinline |
1535 | static void noinline ecb_cold |
952 | fd_ebadf (EV_P) |
1536 | fd_ebadf (EV_P) |
953 | { |
1537 | { |
954 | int fd; |
1538 | int fd; |
955 | |
1539 | |
956 | for (fd = 0; fd < anfdmax; ++fd) |
1540 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
958 | if (!fd_valid (fd) && errno == EBADF) |
1542 | if (!fd_valid (fd) && errno == EBADF) |
959 | fd_kill (EV_A_ fd); |
1543 | fd_kill (EV_A_ fd); |
960 | } |
1544 | } |
961 | |
1545 | |
962 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1546 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
963 | static void noinline |
1547 | static void noinline ecb_cold |
964 | fd_enomem (EV_P) |
1548 | fd_enomem (EV_P) |
965 | { |
1549 | { |
966 | int fd; |
1550 | int fd; |
967 | |
1551 | |
968 | for (fd = anfdmax; fd--; ) |
1552 | for (fd = anfdmax; fd--; ) |
… | |
… | |
986 | anfds [fd].emask = 0; |
1570 | anfds [fd].emask = 0; |
987 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1571 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
988 | } |
1572 | } |
989 | } |
1573 | } |
990 | |
1574 | |
|
|
1575 | /* used to prepare libev internal fd's */ |
|
|
1576 | /* this is not fork-safe */ |
|
|
1577 | inline_speed void |
|
|
1578 | fd_intern (int fd) |
|
|
1579 | { |
|
|
1580 | #ifdef _WIN32 |
|
|
1581 | unsigned long arg = 1; |
|
|
1582 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1583 | #else |
|
|
1584 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1585 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1586 | #endif |
|
|
1587 | } |
|
|
1588 | |
991 | /*****************************************************************************/ |
1589 | /*****************************************************************************/ |
992 | |
1590 | |
993 | /* |
1591 | /* |
994 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1592 | * the heap functions want a real array index. array index 0 is guaranteed to not |
995 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1593 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
996 | * the branching factor of the d-tree. |
1594 | * the branching factor of the d-tree. |
997 | */ |
1595 | */ |
998 | |
1596 | |
999 | /* |
1597 | /* |
… | |
… | |
1147 | |
1745 | |
1148 | static ANSIG signals [EV_NSIG - 1]; |
1746 | static ANSIG signals [EV_NSIG - 1]; |
1149 | |
1747 | |
1150 | /*****************************************************************************/ |
1748 | /*****************************************************************************/ |
1151 | |
1749 | |
1152 | /* used to prepare libev internal fd's */ |
1750 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1153 | /* this is not fork-safe */ |
|
|
1154 | inline_speed void |
|
|
1155 | fd_intern (int fd) |
|
|
1156 | { |
|
|
1157 | #ifdef _WIN32 |
|
|
1158 | unsigned long arg = 1; |
|
|
1159 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1160 | #else |
|
|
1161 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1162 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1163 | #endif |
|
|
1164 | } |
|
|
1165 | |
1751 | |
1166 | static void noinline |
1752 | static void noinline ecb_cold |
1167 | evpipe_init (EV_P) |
1753 | evpipe_init (EV_P) |
1168 | { |
1754 | { |
1169 | if (!ev_is_active (&pipe_w)) |
1755 | if (!ev_is_active (&pipe_w)) |
1170 | { |
1756 | { |
1171 | #if EV_USE_EVENTFD |
1757 | # if EV_USE_EVENTFD |
1172 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1758 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1173 | if (evfd < 0 && errno == EINVAL) |
1759 | if (evfd < 0 && errno == EINVAL) |
1174 | evfd = eventfd (0, 0); |
1760 | evfd = eventfd (0, 0); |
1175 | |
1761 | |
1176 | if (evfd >= 0) |
1762 | if (evfd >= 0) |
… | |
… | |
1178 | evpipe [0] = -1; |
1764 | evpipe [0] = -1; |
1179 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1765 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1180 | ev_io_set (&pipe_w, evfd, EV_READ); |
1766 | ev_io_set (&pipe_w, evfd, EV_READ); |
1181 | } |
1767 | } |
1182 | else |
1768 | else |
1183 | #endif |
1769 | # endif |
1184 | { |
1770 | { |
1185 | while (pipe (evpipe)) |
1771 | while (pipe (evpipe)) |
1186 | ev_syserr ("(libev) error creating signal/async pipe"); |
1772 | ev_syserr ("(libev) error creating signal/async pipe"); |
1187 | |
1773 | |
1188 | fd_intern (evpipe [0]); |
1774 | fd_intern (evpipe [0]); |
… | |
… | |
1193 | ev_io_start (EV_A_ &pipe_w); |
1779 | ev_io_start (EV_A_ &pipe_w); |
1194 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1780 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1195 | } |
1781 | } |
1196 | } |
1782 | } |
1197 | |
1783 | |
1198 | inline_size void |
1784 | inline_speed void |
1199 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1785 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1200 | { |
1786 | { |
1201 | if (!*flag) |
1787 | if (expect_true (*flag)) |
|
|
1788 | return; |
|
|
1789 | |
|
|
1790 | *flag = 1; |
|
|
1791 | |
|
|
1792 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1793 | |
|
|
1794 | pipe_write_skipped = 1; |
|
|
1795 | |
|
|
1796 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1797 | |
|
|
1798 | if (pipe_write_wanted) |
1202 | { |
1799 | { |
|
|
1800 | int old_errno; |
|
|
1801 | |
|
|
1802 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1803 | |
1203 | int old_errno = errno; /* save errno because write might clobber it */ |
1804 | old_errno = errno; /* save errno because write will clobber it */ |
1204 | |
|
|
1205 | *flag = 1; |
|
|
1206 | |
1805 | |
1207 | #if EV_USE_EVENTFD |
1806 | #if EV_USE_EVENTFD |
1208 | if (evfd >= 0) |
1807 | if (evfd >= 0) |
1209 | { |
1808 | { |
1210 | uint64_t counter = 1; |
1809 | uint64_t counter = 1; |
1211 | write (evfd, &counter, sizeof (uint64_t)); |
1810 | write (evfd, &counter, sizeof (uint64_t)); |
1212 | } |
1811 | } |
1213 | else |
1812 | else |
1214 | #endif |
1813 | #endif |
|
|
1814 | { |
|
|
1815 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1816 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1817 | /* so when you think this write should be a send instead, please find out */ |
|
|
1818 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1819 | /* tell me. thank you. */ |
1215 | write (evpipe [1], &old_errno, 1); |
1820 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1821 | } |
1216 | |
1822 | |
1217 | errno = old_errno; |
1823 | errno = old_errno; |
1218 | } |
1824 | } |
1219 | } |
1825 | } |
1220 | |
1826 | |
… | |
… | |
1223 | static void |
1829 | static void |
1224 | pipecb (EV_P_ ev_io *iow, int revents) |
1830 | pipecb (EV_P_ ev_io *iow, int revents) |
1225 | { |
1831 | { |
1226 | int i; |
1832 | int i; |
1227 | |
1833 | |
|
|
1834 | if (revents & EV_READ) |
|
|
1835 | { |
1228 | #if EV_USE_EVENTFD |
1836 | #if EV_USE_EVENTFD |
1229 | if (evfd >= 0) |
1837 | if (evfd >= 0) |
1230 | { |
1838 | { |
1231 | uint64_t counter; |
1839 | uint64_t counter; |
1232 | read (evfd, &counter, sizeof (uint64_t)); |
1840 | read (evfd, &counter, sizeof (uint64_t)); |
1233 | } |
1841 | } |
1234 | else |
1842 | else |
1235 | #endif |
1843 | #endif |
1236 | { |
1844 | { |
1237 | char dummy; |
1845 | char dummy; |
|
|
1846 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1238 | read (evpipe [0], &dummy, 1); |
1847 | read (evpipe [0], &dummy, 1); |
|
|
1848 | } |
1239 | } |
1849 | } |
1240 | |
1850 | |
|
|
1851 | pipe_write_skipped = 0; |
|
|
1852 | |
|
|
1853 | #if EV_SIGNAL_ENABLE |
1241 | if (sig_pending) |
1854 | if (sig_pending) |
1242 | { |
1855 | { |
1243 | sig_pending = 0; |
1856 | sig_pending = 0; |
1244 | |
1857 | |
1245 | for (i = EV_NSIG - 1; i--; ) |
1858 | for (i = EV_NSIG - 1; i--; ) |
1246 | if (expect_false (signals [i].pending)) |
1859 | if (expect_false (signals [i].pending)) |
1247 | ev_feed_signal_event (EV_A_ i + 1); |
1860 | ev_feed_signal_event (EV_A_ i + 1); |
1248 | } |
1861 | } |
|
|
1862 | #endif |
1249 | |
1863 | |
1250 | #if EV_ASYNC_ENABLE |
1864 | #if EV_ASYNC_ENABLE |
1251 | if (async_pending) |
1865 | if (async_pending) |
1252 | { |
1866 | { |
1253 | async_pending = 0; |
1867 | async_pending = 0; |
… | |
… | |
1262 | #endif |
1876 | #endif |
1263 | } |
1877 | } |
1264 | |
1878 | |
1265 | /*****************************************************************************/ |
1879 | /*****************************************************************************/ |
1266 | |
1880 | |
|
|
1881 | void |
|
|
1882 | ev_feed_signal (int signum) |
|
|
1883 | { |
|
|
1884 | #if EV_MULTIPLICITY |
|
|
1885 | EV_P = signals [signum - 1].loop; |
|
|
1886 | |
|
|
1887 | if (!EV_A) |
|
|
1888 | return; |
|
|
1889 | #endif |
|
|
1890 | |
|
|
1891 | if (!ev_active (&pipe_w)) |
|
|
1892 | return; |
|
|
1893 | |
|
|
1894 | signals [signum - 1].pending = 1; |
|
|
1895 | evpipe_write (EV_A_ &sig_pending); |
|
|
1896 | } |
|
|
1897 | |
1267 | static void |
1898 | static void |
1268 | ev_sighandler (int signum) |
1899 | ev_sighandler (int signum) |
1269 | { |
1900 | { |
1270 | #if EV_MULTIPLICITY |
|
|
1271 | EV_P = signals [signum - 1].loop; |
|
|
1272 | #endif |
|
|
1273 | |
|
|
1274 | #if _WIN32 |
1901 | #ifdef _WIN32 |
1275 | signal (signum, ev_sighandler); |
1902 | signal (signum, ev_sighandler); |
1276 | #endif |
1903 | #endif |
1277 | |
1904 | |
1278 | signals [signum - 1].pending = 1; |
1905 | ev_feed_signal (signum); |
1279 | evpipe_write (EV_A_ &sig_pending); |
|
|
1280 | } |
1906 | } |
1281 | |
1907 | |
1282 | void noinline |
1908 | void noinline |
1283 | ev_feed_signal_event (EV_P_ int signum) |
1909 | ev_feed_signal_event (EV_P_ int signum) |
1284 | { |
1910 | { |
… | |
… | |
1321 | break; |
1947 | break; |
1322 | } |
1948 | } |
1323 | } |
1949 | } |
1324 | #endif |
1950 | #endif |
1325 | |
1951 | |
|
|
1952 | #endif |
|
|
1953 | |
1326 | /*****************************************************************************/ |
1954 | /*****************************************************************************/ |
1327 | |
1955 | |
|
|
1956 | #if EV_CHILD_ENABLE |
1328 | static WL childs [EV_PID_HASHSIZE]; |
1957 | static WL childs [EV_PID_HASHSIZE]; |
1329 | |
|
|
1330 | #ifndef _WIN32 |
|
|
1331 | |
1958 | |
1332 | static ev_signal childev; |
1959 | static ev_signal childev; |
1333 | |
1960 | |
1334 | #ifndef WIFCONTINUED |
1961 | #ifndef WIFCONTINUED |
1335 | # define WIFCONTINUED(status) 0 |
1962 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1340 | child_reap (EV_P_ int chain, int pid, int status) |
1967 | child_reap (EV_P_ int chain, int pid, int status) |
1341 | { |
1968 | { |
1342 | ev_child *w; |
1969 | ev_child *w; |
1343 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1970 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1344 | |
1971 | |
1345 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1972 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1346 | { |
1973 | { |
1347 | if ((w->pid == pid || !w->pid) |
1974 | if ((w->pid == pid || !w->pid) |
1348 | && (!traced || (w->flags & 1))) |
1975 | && (!traced || (w->flags & 1))) |
1349 | { |
1976 | { |
1350 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1977 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1375 | /* make sure we are called again until all children have been reaped */ |
2002 | /* make sure we are called again until all children have been reaped */ |
1376 | /* we need to do it this way so that the callback gets called before we continue */ |
2003 | /* we need to do it this way so that the callback gets called before we continue */ |
1377 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2004 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1378 | |
2005 | |
1379 | child_reap (EV_A_ pid, pid, status); |
2006 | child_reap (EV_A_ pid, pid, status); |
1380 | if (EV_PID_HASHSIZE > 1) |
2007 | if ((EV_PID_HASHSIZE) > 1) |
1381 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2008 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1382 | } |
2009 | } |
1383 | |
2010 | |
1384 | #endif |
2011 | #endif |
1385 | |
2012 | |
1386 | /*****************************************************************************/ |
2013 | /*****************************************************************************/ |
1387 | |
2014 | |
|
|
2015 | #if EV_USE_IOCP |
|
|
2016 | # include "ev_iocp.c" |
|
|
2017 | #endif |
1388 | #if EV_USE_PORT |
2018 | #if EV_USE_PORT |
1389 | # include "ev_port.c" |
2019 | # include "ev_port.c" |
1390 | #endif |
2020 | #endif |
1391 | #if EV_USE_KQUEUE |
2021 | #if EV_USE_KQUEUE |
1392 | # include "ev_kqueue.c" |
2022 | # include "ev_kqueue.c" |
… | |
… | |
1399 | #endif |
2029 | #endif |
1400 | #if EV_USE_SELECT |
2030 | #if EV_USE_SELECT |
1401 | # include "ev_select.c" |
2031 | # include "ev_select.c" |
1402 | #endif |
2032 | #endif |
1403 | |
2033 | |
1404 | int |
2034 | int ecb_cold |
1405 | ev_version_major (void) |
2035 | ev_version_major (void) |
1406 | { |
2036 | { |
1407 | return EV_VERSION_MAJOR; |
2037 | return EV_VERSION_MAJOR; |
1408 | } |
2038 | } |
1409 | |
2039 | |
1410 | int |
2040 | int ecb_cold |
1411 | ev_version_minor (void) |
2041 | ev_version_minor (void) |
1412 | { |
2042 | { |
1413 | return EV_VERSION_MINOR; |
2043 | return EV_VERSION_MINOR; |
1414 | } |
2044 | } |
1415 | |
2045 | |
1416 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2046 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1417 | int inline_size |
2047 | int inline_size ecb_cold |
1418 | enable_secure (void) |
2048 | enable_secure (void) |
1419 | { |
2049 | { |
1420 | #ifdef _WIN32 |
2050 | #ifdef _WIN32 |
1421 | return 0; |
2051 | return 0; |
1422 | #else |
2052 | #else |
1423 | return getuid () != geteuid () |
2053 | return getuid () != geteuid () |
1424 | || getgid () != getegid (); |
2054 | || getgid () != getegid (); |
1425 | #endif |
2055 | #endif |
1426 | } |
2056 | } |
1427 | |
2057 | |
1428 | unsigned int |
2058 | unsigned int ecb_cold |
1429 | ev_supported_backends (void) |
2059 | ev_supported_backends (void) |
1430 | { |
2060 | { |
1431 | unsigned int flags = 0; |
2061 | unsigned int flags = 0; |
1432 | |
2062 | |
1433 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2063 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1437 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2067 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1438 | |
2068 | |
1439 | return flags; |
2069 | return flags; |
1440 | } |
2070 | } |
1441 | |
2071 | |
1442 | unsigned int |
2072 | unsigned int ecb_cold |
1443 | ev_recommended_backends (void) |
2073 | ev_recommended_backends (void) |
1444 | { |
2074 | { |
1445 | unsigned int flags = ev_supported_backends (); |
2075 | unsigned int flags = ev_supported_backends (); |
1446 | |
2076 | |
1447 | #ifndef __NetBSD__ |
2077 | #ifndef __NetBSD__ |
… | |
… | |
1452 | #ifdef __APPLE__ |
2082 | #ifdef __APPLE__ |
1453 | /* only select works correctly on that "unix-certified" platform */ |
2083 | /* only select works correctly on that "unix-certified" platform */ |
1454 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2084 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1455 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2085 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1456 | #endif |
2086 | #endif |
|
|
2087 | #ifdef __FreeBSD__ |
|
|
2088 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2089 | #endif |
1457 | |
2090 | |
1458 | return flags; |
2091 | return flags; |
1459 | } |
2092 | } |
1460 | |
2093 | |
1461 | unsigned int |
2094 | unsigned int ecb_cold |
1462 | ev_embeddable_backends (void) |
2095 | ev_embeddable_backends (void) |
1463 | { |
2096 | { |
1464 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2097 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1465 | |
2098 | |
1466 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2099 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1467 | /* please fix it and tell me how to detect the fix */ |
2100 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1468 | flags &= ~EVBACKEND_EPOLL; |
2101 | flags &= ~EVBACKEND_EPOLL; |
1469 | |
2102 | |
1470 | return flags; |
2103 | return flags; |
1471 | } |
2104 | } |
1472 | |
2105 | |
1473 | unsigned int |
2106 | unsigned int |
1474 | ev_backend (EV_P) |
2107 | ev_backend (EV_P) |
1475 | { |
2108 | { |
1476 | return backend; |
2109 | return backend; |
1477 | } |
2110 | } |
1478 | |
2111 | |
1479 | #if EV_MINIMAL < 2 |
2112 | #if EV_FEATURE_API |
1480 | unsigned int |
2113 | unsigned int |
1481 | ev_loop_count (EV_P) |
2114 | ev_iteration (EV_P) |
1482 | { |
2115 | { |
1483 | return loop_count; |
2116 | return loop_count; |
1484 | } |
2117 | } |
1485 | |
2118 | |
1486 | unsigned int |
2119 | unsigned int |
1487 | ev_loop_depth (EV_P) |
2120 | ev_depth (EV_P) |
1488 | { |
2121 | { |
1489 | return loop_depth; |
2122 | return loop_depth; |
1490 | } |
2123 | } |
1491 | |
2124 | |
1492 | void |
2125 | void |
… | |
… | |
1511 | ev_userdata (EV_P) |
2144 | ev_userdata (EV_P) |
1512 | { |
2145 | { |
1513 | return userdata; |
2146 | return userdata; |
1514 | } |
2147 | } |
1515 | |
2148 | |
|
|
2149 | void |
1516 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2150 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1517 | { |
2151 | { |
1518 | invoke_cb = invoke_pending_cb; |
2152 | invoke_cb = invoke_pending_cb; |
1519 | } |
2153 | } |
1520 | |
2154 | |
|
|
2155 | void |
1521 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2156 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
1522 | { |
2157 | { |
1523 | release_cb = release; |
2158 | release_cb = release; |
1524 | acquire_cb = acquire; |
2159 | acquire_cb = acquire; |
1525 | } |
2160 | } |
1526 | #endif |
2161 | #endif |
1527 | |
2162 | |
1528 | /* initialise a loop structure, must be zero-initialised */ |
2163 | /* initialise a loop structure, must be zero-initialised */ |
1529 | static void noinline |
2164 | static void noinline ecb_cold |
1530 | loop_init (EV_P_ unsigned int flags) |
2165 | loop_init (EV_P_ unsigned int flags) |
1531 | { |
2166 | { |
1532 | if (!backend) |
2167 | if (!backend) |
1533 | { |
2168 | { |
|
|
2169 | origflags = flags; |
|
|
2170 | |
1534 | #if EV_USE_REALTIME |
2171 | #if EV_USE_REALTIME |
1535 | if (!have_realtime) |
2172 | if (!have_realtime) |
1536 | { |
2173 | { |
1537 | struct timespec ts; |
2174 | struct timespec ts; |
1538 | |
2175 | |
… | |
… | |
1560 | if (!(flags & EVFLAG_NOENV) |
2197 | if (!(flags & EVFLAG_NOENV) |
1561 | && !enable_secure () |
2198 | && !enable_secure () |
1562 | && getenv ("LIBEV_FLAGS")) |
2199 | && getenv ("LIBEV_FLAGS")) |
1563 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2200 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1564 | |
2201 | |
1565 | ev_rt_now = ev_time (); |
2202 | ev_rt_now = ev_time (); |
1566 | mn_now = get_clock (); |
2203 | mn_now = get_clock (); |
1567 | now_floor = mn_now; |
2204 | now_floor = mn_now; |
1568 | rtmn_diff = ev_rt_now - mn_now; |
2205 | rtmn_diff = ev_rt_now - mn_now; |
1569 | #if EV_MINIMAL < 2 |
2206 | #if EV_FEATURE_API |
1570 | invoke_cb = ev_invoke_pending; |
2207 | invoke_cb = ev_invoke_pending; |
1571 | #endif |
2208 | #endif |
1572 | |
2209 | |
1573 | io_blocktime = 0.; |
2210 | io_blocktime = 0.; |
1574 | timeout_blocktime = 0.; |
2211 | timeout_blocktime = 0.; |
1575 | backend = 0; |
2212 | backend = 0; |
1576 | backend_fd = -1; |
2213 | backend_fd = -1; |
1577 | sig_pending = 0; |
2214 | sig_pending = 0; |
1578 | #if EV_ASYNC_ENABLE |
2215 | #if EV_ASYNC_ENABLE |
1579 | async_pending = 0; |
2216 | async_pending = 0; |
1580 | #endif |
2217 | #endif |
|
|
2218 | pipe_write_skipped = 0; |
|
|
2219 | pipe_write_wanted = 0; |
1581 | #if EV_USE_INOTIFY |
2220 | #if EV_USE_INOTIFY |
1582 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2221 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1583 | #endif |
2222 | #endif |
1584 | #if EV_USE_SIGNALFD |
2223 | #if EV_USE_SIGNALFD |
1585 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
2224 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1586 | #endif |
2225 | #endif |
1587 | |
2226 | |
1588 | if (!(flags & 0x0000ffffU)) |
2227 | if (!(flags & EVBACKEND_MASK)) |
1589 | flags |= ev_recommended_backends (); |
2228 | flags |= ev_recommended_backends (); |
1590 | |
2229 | |
|
|
2230 | #if EV_USE_IOCP |
|
|
2231 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2232 | #endif |
1591 | #if EV_USE_PORT |
2233 | #if EV_USE_PORT |
1592 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2234 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1593 | #endif |
2235 | #endif |
1594 | #if EV_USE_KQUEUE |
2236 | #if EV_USE_KQUEUE |
1595 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2237 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1604 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2246 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1605 | #endif |
2247 | #endif |
1606 | |
2248 | |
1607 | ev_prepare_init (&pending_w, pendingcb); |
2249 | ev_prepare_init (&pending_w, pendingcb); |
1608 | |
2250 | |
|
|
2251 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1609 | ev_init (&pipe_w, pipecb); |
2252 | ev_init (&pipe_w, pipecb); |
1610 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2253 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2254 | #endif |
1611 | } |
2255 | } |
1612 | } |
2256 | } |
1613 | |
2257 | |
1614 | /* free up a loop structure */ |
2258 | /* free up a loop structure */ |
1615 | static void noinline |
2259 | void ecb_cold |
1616 | loop_destroy (EV_P) |
2260 | ev_loop_destroy (EV_P) |
1617 | { |
2261 | { |
1618 | int i; |
2262 | int i; |
|
|
2263 | |
|
|
2264 | #if EV_MULTIPLICITY |
|
|
2265 | /* mimic free (0) */ |
|
|
2266 | if (!EV_A) |
|
|
2267 | return; |
|
|
2268 | #endif |
|
|
2269 | |
|
|
2270 | #if EV_CLEANUP_ENABLE |
|
|
2271 | /* queue cleanup watchers (and execute them) */ |
|
|
2272 | if (expect_false (cleanupcnt)) |
|
|
2273 | { |
|
|
2274 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2275 | EV_INVOKE_PENDING; |
|
|
2276 | } |
|
|
2277 | #endif |
|
|
2278 | |
|
|
2279 | #if EV_CHILD_ENABLE |
|
|
2280 | if (ev_is_active (&childev)) |
|
|
2281 | { |
|
|
2282 | ev_ref (EV_A); /* child watcher */ |
|
|
2283 | ev_signal_stop (EV_A_ &childev); |
|
|
2284 | } |
|
|
2285 | #endif |
1619 | |
2286 | |
1620 | if (ev_is_active (&pipe_w)) |
2287 | if (ev_is_active (&pipe_w)) |
1621 | { |
2288 | { |
1622 | /*ev_ref (EV_A);*/ |
2289 | /*ev_ref (EV_A);*/ |
1623 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2290 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1634 | } |
2301 | } |
1635 | } |
2302 | } |
1636 | |
2303 | |
1637 | #if EV_USE_SIGNALFD |
2304 | #if EV_USE_SIGNALFD |
1638 | if (ev_is_active (&sigfd_w)) |
2305 | if (ev_is_active (&sigfd_w)) |
1639 | { |
|
|
1640 | /*ev_ref (EV_A);*/ |
|
|
1641 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1642 | |
|
|
1643 | close (sigfd); |
2306 | close (sigfd); |
1644 | } |
|
|
1645 | #endif |
2307 | #endif |
1646 | |
2308 | |
1647 | #if EV_USE_INOTIFY |
2309 | #if EV_USE_INOTIFY |
1648 | if (fs_fd >= 0) |
2310 | if (fs_fd >= 0) |
1649 | close (fs_fd); |
2311 | close (fs_fd); |
1650 | #endif |
2312 | #endif |
1651 | |
2313 | |
1652 | if (backend_fd >= 0) |
2314 | if (backend_fd >= 0) |
1653 | close (backend_fd); |
2315 | close (backend_fd); |
1654 | |
2316 | |
|
|
2317 | #if EV_USE_IOCP |
|
|
2318 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2319 | #endif |
1655 | #if EV_USE_PORT |
2320 | #if EV_USE_PORT |
1656 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2321 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1657 | #endif |
2322 | #endif |
1658 | #if EV_USE_KQUEUE |
2323 | #if EV_USE_KQUEUE |
1659 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2324 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1686 | array_free (periodic, EMPTY); |
2351 | array_free (periodic, EMPTY); |
1687 | #endif |
2352 | #endif |
1688 | #if EV_FORK_ENABLE |
2353 | #if EV_FORK_ENABLE |
1689 | array_free (fork, EMPTY); |
2354 | array_free (fork, EMPTY); |
1690 | #endif |
2355 | #endif |
|
|
2356 | #if EV_CLEANUP_ENABLE |
|
|
2357 | array_free (cleanup, EMPTY); |
|
|
2358 | #endif |
1691 | array_free (prepare, EMPTY); |
2359 | array_free (prepare, EMPTY); |
1692 | array_free (check, EMPTY); |
2360 | array_free (check, EMPTY); |
1693 | #if EV_ASYNC_ENABLE |
2361 | #if EV_ASYNC_ENABLE |
1694 | array_free (async, EMPTY); |
2362 | array_free (async, EMPTY); |
1695 | #endif |
2363 | #endif |
1696 | |
2364 | |
1697 | backend = 0; |
2365 | backend = 0; |
|
|
2366 | |
|
|
2367 | #if EV_MULTIPLICITY |
|
|
2368 | if (ev_is_default_loop (EV_A)) |
|
|
2369 | #endif |
|
|
2370 | ev_default_loop_ptr = 0; |
|
|
2371 | #if EV_MULTIPLICITY |
|
|
2372 | else |
|
|
2373 | ev_free (EV_A); |
|
|
2374 | #endif |
1698 | } |
2375 | } |
1699 | |
2376 | |
1700 | #if EV_USE_INOTIFY |
2377 | #if EV_USE_INOTIFY |
1701 | inline_size void infy_fork (EV_P); |
2378 | inline_size void infy_fork (EV_P); |
1702 | #endif |
2379 | #endif |
… | |
… | |
1717 | infy_fork (EV_A); |
2394 | infy_fork (EV_A); |
1718 | #endif |
2395 | #endif |
1719 | |
2396 | |
1720 | if (ev_is_active (&pipe_w)) |
2397 | if (ev_is_active (&pipe_w)) |
1721 | { |
2398 | { |
1722 | /* this "locks" the handlers against writing to the pipe */ |
2399 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1723 | /* while we modify the fd vars */ |
|
|
1724 | sig_pending = 1; |
|
|
1725 | #if EV_ASYNC_ENABLE |
|
|
1726 | async_pending = 1; |
|
|
1727 | #endif |
|
|
1728 | |
2400 | |
1729 | ev_ref (EV_A); |
2401 | ev_ref (EV_A); |
1730 | ev_io_stop (EV_A_ &pipe_w); |
2402 | ev_io_stop (EV_A_ &pipe_w); |
1731 | |
2403 | |
1732 | #if EV_USE_EVENTFD |
2404 | #if EV_USE_EVENTFD |
… | |
… | |
1738 | { |
2410 | { |
1739 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2411 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1740 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2412 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1741 | } |
2413 | } |
1742 | |
2414 | |
|
|
2415 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1743 | evpipe_init (EV_A); |
2416 | evpipe_init (EV_A); |
1744 | /* now iterate over everything, in case we missed something */ |
2417 | /* now iterate over everything, in case we missed something */ |
1745 | pipecb (EV_A_ &pipe_w, EV_READ); |
2418 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2419 | #endif |
1746 | } |
2420 | } |
1747 | |
2421 | |
1748 | postfork = 0; |
2422 | postfork = 0; |
1749 | } |
2423 | } |
1750 | |
2424 | |
1751 | #if EV_MULTIPLICITY |
2425 | #if EV_MULTIPLICITY |
1752 | |
2426 | |
1753 | struct ev_loop * |
2427 | struct ev_loop * ecb_cold |
1754 | ev_loop_new (unsigned int flags) |
2428 | ev_loop_new (unsigned int flags) |
1755 | { |
2429 | { |
1756 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2430 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1757 | |
2431 | |
1758 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2432 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1759 | loop_init (EV_A_ flags); |
2433 | loop_init (EV_A_ flags); |
1760 | |
2434 | |
1761 | if (ev_backend (EV_A)) |
2435 | if (ev_backend (EV_A)) |
1762 | return EV_A; |
2436 | return EV_A; |
1763 | |
2437 | |
|
|
2438 | ev_free (EV_A); |
1764 | return 0; |
2439 | return 0; |
1765 | } |
2440 | } |
1766 | |
2441 | |
1767 | void |
|
|
1768 | ev_loop_destroy (EV_P) |
|
|
1769 | { |
|
|
1770 | loop_destroy (EV_A); |
|
|
1771 | ev_free (loop); |
|
|
1772 | } |
|
|
1773 | |
|
|
1774 | void |
|
|
1775 | ev_loop_fork (EV_P) |
|
|
1776 | { |
|
|
1777 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1778 | } |
|
|
1779 | #endif /* multiplicity */ |
2442 | #endif /* multiplicity */ |
1780 | |
2443 | |
1781 | #if EV_VERIFY |
2444 | #if EV_VERIFY |
1782 | static void noinline |
2445 | static void noinline ecb_cold |
1783 | verify_watcher (EV_P_ W w) |
2446 | verify_watcher (EV_P_ W w) |
1784 | { |
2447 | { |
1785 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2448 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1786 | |
2449 | |
1787 | if (w->pending) |
2450 | if (w->pending) |
1788 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2451 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1789 | } |
2452 | } |
1790 | |
2453 | |
1791 | static void noinline |
2454 | static void noinline ecb_cold |
1792 | verify_heap (EV_P_ ANHE *heap, int N) |
2455 | verify_heap (EV_P_ ANHE *heap, int N) |
1793 | { |
2456 | { |
1794 | int i; |
2457 | int i; |
1795 | |
2458 | |
1796 | for (i = HEAP0; i < N + HEAP0; ++i) |
2459 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1801 | |
2464 | |
1802 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2465 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1803 | } |
2466 | } |
1804 | } |
2467 | } |
1805 | |
2468 | |
1806 | static void noinline |
2469 | static void noinline ecb_cold |
1807 | array_verify (EV_P_ W *ws, int cnt) |
2470 | array_verify (EV_P_ W *ws, int cnt) |
1808 | { |
2471 | { |
1809 | while (cnt--) |
2472 | while (cnt--) |
1810 | { |
2473 | { |
1811 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2474 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1812 | verify_watcher (EV_A_ ws [cnt]); |
2475 | verify_watcher (EV_A_ ws [cnt]); |
1813 | } |
2476 | } |
1814 | } |
2477 | } |
1815 | #endif |
2478 | #endif |
1816 | |
2479 | |
1817 | #if EV_MINIMAL < 2 |
2480 | #if EV_FEATURE_API |
1818 | void |
2481 | void ecb_cold |
1819 | ev_loop_verify (EV_P) |
2482 | ev_verify (EV_P) |
1820 | { |
2483 | { |
1821 | #if EV_VERIFY |
2484 | #if EV_VERIFY |
1822 | int i; |
2485 | int i; |
1823 | WL w; |
2486 | WL w; |
1824 | |
2487 | |
… | |
… | |
1858 | #if EV_FORK_ENABLE |
2521 | #if EV_FORK_ENABLE |
1859 | assert (forkmax >= forkcnt); |
2522 | assert (forkmax >= forkcnt); |
1860 | array_verify (EV_A_ (W *)forks, forkcnt); |
2523 | array_verify (EV_A_ (W *)forks, forkcnt); |
1861 | #endif |
2524 | #endif |
1862 | |
2525 | |
|
|
2526 | #if EV_CLEANUP_ENABLE |
|
|
2527 | assert (cleanupmax >= cleanupcnt); |
|
|
2528 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2529 | #endif |
|
|
2530 | |
1863 | #if EV_ASYNC_ENABLE |
2531 | #if EV_ASYNC_ENABLE |
1864 | assert (asyncmax >= asynccnt); |
2532 | assert (asyncmax >= asynccnt); |
1865 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2533 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1866 | #endif |
2534 | #endif |
1867 | |
2535 | |
|
|
2536 | #if EV_PREPARE_ENABLE |
1868 | assert (preparemax >= preparecnt); |
2537 | assert (preparemax >= preparecnt); |
1869 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2538 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2539 | #endif |
1870 | |
2540 | |
|
|
2541 | #if EV_CHECK_ENABLE |
1871 | assert (checkmax >= checkcnt); |
2542 | assert (checkmax >= checkcnt); |
1872 | array_verify (EV_A_ (W *)checks, checkcnt); |
2543 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2544 | #endif |
1873 | |
2545 | |
1874 | # if 0 |
2546 | # if 0 |
|
|
2547 | #if EV_CHILD_ENABLE |
1875 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2548 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1876 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
2549 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2550 | #endif |
1877 | # endif |
2551 | # endif |
1878 | #endif |
2552 | #endif |
1879 | } |
2553 | } |
1880 | #endif |
2554 | #endif |
1881 | |
2555 | |
1882 | #if EV_MULTIPLICITY |
2556 | #if EV_MULTIPLICITY |
1883 | struct ev_loop * |
2557 | struct ev_loop * ecb_cold |
1884 | ev_default_loop_init (unsigned int flags) |
|
|
1885 | #else |
2558 | #else |
1886 | int |
2559 | int |
|
|
2560 | #endif |
1887 | ev_default_loop (unsigned int flags) |
2561 | ev_default_loop (unsigned int flags) |
1888 | #endif |
|
|
1889 | { |
2562 | { |
1890 | if (!ev_default_loop_ptr) |
2563 | if (!ev_default_loop_ptr) |
1891 | { |
2564 | { |
1892 | #if EV_MULTIPLICITY |
2565 | #if EV_MULTIPLICITY |
1893 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2566 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1897 | |
2570 | |
1898 | loop_init (EV_A_ flags); |
2571 | loop_init (EV_A_ flags); |
1899 | |
2572 | |
1900 | if (ev_backend (EV_A)) |
2573 | if (ev_backend (EV_A)) |
1901 | { |
2574 | { |
1902 | #ifndef _WIN32 |
2575 | #if EV_CHILD_ENABLE |
1903 | ev_signal_init (&childev, childcb, SIGCHLD); |
2576 | ev_signal_init (&childev, childcb, SIGCHLD); |
1904 | ev_set_priority (&childev, EV_MAXPRI); |
2577 | ev_set_priority (&childev, EV_MAXPRI); |
1905 | ev_signal_start (EV_A_ &childev); |
2578 | ev_signal_start (EV_A_ &childev); |
1906 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2579 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1907 | #endif |
2580 | #endif |
… | |
… | |
1912 | |
2585 | |
1913 | return ev_default_loop_ptr; |
2586 | return ev_default_loop_ptr; |
1914 | } |
2587 | } |
1915 | |
2588 | |
1916 | void |
2589 | void |
1917 | ev_default_destroy (void) |
2590 | ev_loop_fork (EV_P) |
1918 | { |
2591 | { |
1919 | #if EV_MULTIPLICITY |
|
|
1920 | EV_P = ev_default_loop_ptr; |
|
|
1921 | #endif |
|
|
1922 | |
|
|
1923 | ev_default_loop_ptr = 0; |
|
|
1924 | |
|
|
1925 | #ifndef _WIN32 |
|
|
1926 | ev_ref (EV_A); /* child watcher */ |
|
|
1927 | ev_signal_stop (EV_A_ &childev); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | loop_destroy (EV_A); |
|
|
1931 | } |
|
|
1932 | |
|
|
1933 | void |
|
|
1934 | ev_default_fork (void) |
|
|
1935 | { |
|
|
1936 | #if EV_MULTIPLICITY |
|
|
1937 | EV_P = ev_default_loop_ptr; |
|
|
1938 | #endif |
|
|
1939 | |
|
|
1940 | postfork = 1; /* must be in line with ev_loop_fork */ |
2592 | postfork = 1; /* must be in line with ev_default_fork */ |
1941 | } |
2593 | } |
1942 | |
2594 | |
1943 | /*****************************************************************************/ |
2595 | /*****************************************************************************/ |
1944 | |
2596 | |
1945 | void |
2597 | void |
… | |
… | |
1967 | |
2619 | |
1968 | for (pri = NUMPRI; pri--; ) |
2620 | for (pri = NUMPRI; pri--; ) |
1969 | while (pendingcnt [pri]) |
2621 | while (pendingcnt [pri]) |
1970 | { |
2622 | { |
1971 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2623 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1972 | |
|
|
1973 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1974 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1975 | |
2624 | |
1976 | p->w->pending = 0; |
2625 | p->w->pending = 0; |
1977 | EV_CB_INVOKE (p->w, p->events); |
2626 | EV_CB_INVOKE (p->w, p->events); |
1978 | EV_FREQUENT_CHECK; |
2627 | EV_FREQUENT_CHECK; |
1979 | } |
2628 | } |
… | |
… | |
2036 | EV_FREQUENT_CHECK; |
2685 | EV_FREQUENT_CHECK; |
2037 | feed_reverse (EV_A_ (W)w); |
2686 | feed_reverse (EV_A_ (W)w); |
2038 | } |
2687 | } |
2039 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2688 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2040 | |
2689 | |
2041 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2690 | feed_reverse_done (EV_A_ EV_TIMER); |
2042 | } |
2691 | } |
2043 | } |
2692 | } |
2044 | |
2693 | |
2045 | #if EV_PERIODIC_ENABLE |
2694 | #if EV_PERIODIC_ENABLE |
|
|
2695 | |
|
|
2696 | static void noinline |
|
|
2697 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2698 | { |
|
|
2699 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2700 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2701 | |
|
|
2702 | /* the above almost always errs on the low side */ |
|
|
2703 | while (at <= ev_rt_now) |
|
|
2704 | { |
|
|
2705 | ev_tstamp nat = at + w->interval; |
|
|
2706 | |
|
|
2707 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2708 | if (expect_false (nat == at)) |
|
|
2709 | { |
|
|
2710 | at = ev_rt_now; |
|
|
2711 | break; |
|
|
2712 | } |
|
|
2713 | |
|
|
2714 | at = nat; |
|
|
2715 | } |
|
|
2716 | |
|
|
2717 | ev_at (w) = at; |
|
|
2718 | } |
|
|
2719 | |
2046 | /* make periodics pending */ |
2720 | /* make periodics pending */ |
2047 | inline_size void |
2721 | inline_size void |
2048 | periodics_reify (EV_P) |
2722 | periodics_reify (EV_P) |
2049 | { |
2723 | { |
2050 | EV_FREQUENT_CHECK; |
2724 | EV_FREQUENT_CHECK; |
… | |
… | |
2069 | ANHE_at_cache (periodics [HEAP0]); |
2743 | ANHE_at_cache (periodics [HEAP0]); |
2070 | downheap (periodics, periodiccnt, HEAP0); |
2744 | downheap (periodics, periodiccnt, HEAP0); |
2071 | } |
2745 | } |
2072 | else if (w->interval) |
2746 | else if (w->interval) |
2073 | { |
2747 | { |
2074 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2748 | periodic_recalc (EV_A_ w); |
2075 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2076 | /* this might happen because of floating point inexactness */ |
|
|
2077 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2078 | { |
|
|
2079 | ev_at (w) += w->interval; |
|
|
2080 | |
|
|
2081 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2082 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2083 | /* has effectively asked to get triggered more often than possible */ |
|
|
2084 | if (ev_at (w) < ev_rt_now) |
|
|
2085 | ev_at (w) = ev_rt_now; |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | ANHE_at_cache (periodics [HEAP0]); |
2749 | ANHE_at_cache (periodics [HEAP0]); |
2089 | downheap (periodics, periodiccnt, HEAP0); |
2750 | downheap (periodics, periodiccnt, HEAP0); |
2090 | } |
2751 | } |
2091 | else |
2752 | else |
2092 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2753 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2099 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2760 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2100 | } |
2761 | } |
2101 | } |
2762 | } |
2102 | |
2763 | |
2103 | /* simply recalculate all periodics */ |
2764 | /* simply recalculate all periodics */ |
2104 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2765 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2105 | static void noinline |
2766 | static void noinline ecb_cold |
2106 | periodics_reschedule (EV_P) |
2767 | periodics_reschedule (EV_P) |
2107 | { |
2768 | { |
2108 | int i; |
2769 | int i; |
2109 | |
2770 | |
2110 | /* adjust periodics after time jump */ |
2771 | /* adjust periodics after time jump */ |
… | |
… | |
2113 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2774 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2114 | |
2775 | |
2115 | if (w->reschedule_cb) |
2776 | if (w->reschedule_cb) |
2116 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2777 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2117 | else if (w->interval) |
2778 | else if (w->interval) |
2118 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2779 | periodic_recalc (EV_A_ w); |
2119 | |
2780 | |
2120 | ANHE_at_cache (periodics [i]); |
2781 | ANHE_at_cache (periodics [i]); |
2121 | } |
2782 | } |
2122 | |
2783 | |
2123 | reheap (periodics, periodiccnt); |
2784 | reheap (periodics, periodiccnt); |
2124 | } |
2785 | } |
2125 | #endif |
2786 | #endif |
2126 | |
2787 | |
2127 | /* adjust all timers by a given offset */ |
2788 | /* adjust all timers by a given offset */ |
2128 | static void noinline |
2789 | static void noinline ecb_cold |
2129 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2790 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2130 | { |
2791 | { |
2131 | int i; |
2792 | int i; |
2132 | |
2793 | |
2133 | for (i = 0; i < timercnt; ++i) |
2794 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2137 | ANHE_at_cache (*he); |
2798 | ANHE_at_cache (*he); |
2138 | } |
2799 | } |
2139 | } |
2800 | } |
2140 | |
2801 | |
2141 | /* fetch new monotonic and realtime times from the kernel */ |
2802 | /* fetch new monotonic and realtime times from the kernel */ |
2142 | /* also detetc if there was a timejump, and act accordingly */ |
2803 | /* also detect if there was a timejump, and act accordingly */ |
2143 | inline_speed void |
2804 | inline_speed void |
2144 | time_update (EV_P_ ev_tstamp max_block) |
2805 | time_update (EV_P_ ev_tstamp max_block) |
2145 | { |
2806 | { |
2146 | #if EV_USE_MONOTONIC |
2807 | #if EV_USE_MONOTONIC |
2147 | if (expect_true (have_monotonic)) |
2808 | if (expect_true (have_monotonic)) |
… | |
… | |
2170 | * doesn't hurt either as we only do this on time-jumps or |
2831 | * doesn't hurt either as we only do this on time-jumps or |
2171 | * in the unlikely event of having been preempted here. |
2832 | * in the unlikely event of having been preempted here. |
2172 | */ |
2833 | */ |
2173 | for (i = 4; --i; ) |
2834 | for (i = 4; --i; ) |
2174 | { |
2835 | { |
|
|
2836 | ev_tstamp diff; |
2175 | rtmn_diff = ev_rt_now - mn_now; |
2837 | rtmn_diff = ev_rt_now - mn_now; |
2176 | |
2838 | |
|
|
2839 | diff = odiff - rtmn_diff; |
|
|
2840 | |
2177 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2841 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2178 | return; /* all is well */ |
2842 | return; /* all is well */ |
2179 | |
2843 | |
2180 | ev_rt_now = ev_time (); |
2844 | ev_rt_now = ev_time (); |
2181 | mn_now = get_clock (); |
2845 | mn_now = get_clock (); |
2182 | now_floor = mn_now; |
2846 | now_floor = mn_now; |
… | |
… | |
2205 | mn_now = ev_rt_now; |
2869 | mn_now = ev_rt_now; |
2206 | } |
2870 | } |
2207 | } |
2871 | } |
2208 | |
2872 | |
2209 | void |
2873 | void |
2210 | ev_loop (EV_P_ int flags) |
2874 | ev_run (EV_P_ int flags) |
2211 | { |
2875 | { |
2212 | #if EV_MINIMAL < 2 |
2876 | #if EV_FEATURE_API |
2213 | ++loop_depth; |
2877 | ++loop_depth; |
2214 | #endif |
2878 | #endif |
2215 | |
2879 | |
2216 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2880 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2217 | |
2881 | |
2218 | loop_done = EVUNLOOP_CANCEL; |
2882 | loop_done = EVBREAK_CANCEL; |
2219 | |
2883 | |
2220 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2884 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2221 | |
2885 | |
2222 | do |
2886 | do |
2223 | { |
2887 | { |
2224 | #if EV_VERIFY >= 2 |
2888 | #if EV_VERIFY >= 2 |
2225 | ev_loop_verify (EV_A); |
2889 | ev_verify (EV_A); |
2226 | #endif |
2890 | #endif |
2227 | |
2891 | |
2228 | #ifndef _WIN32 |
2892 | #ifndef _WIN32 |
2229 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2893 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2230 | if (expect_false (getpid () != curpid)) |
2894 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2242 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2906 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2243 | EV_INVOKE_PENDING; |
2907 | EV_INVOKE_PENDING; |
2244 | } |
2908 | } |
2245 | #endif |
2909 | #endif |
2246 | |
2910 | |
|
|
2911 | #if EV_PREPARE_ENABLE |
2247 | /* queue prepare watchers (and execute them) */ |
2912 | /* queue prepare watchers (and execute them) */ |
2248 | if (expect_false (preparecnt)) |
2913 | if (expect_false (preparecnt)) |
2249 | { |
2914 | { |
2250 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2915 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2251 | EV_INVOKE_PENDING; |
2916 | EV_INVOKE_PENDING; |
2252 | } |
2917 | } |
|
|
2918 | #endif |
2253 | |
2919 | |
2254 | if (expect_false (loop_done)) |
2920 | if (expect_false (loop_done)) |
2255 | break; |
2921 | break; |
2256 | |
2922 | |
2257 | /* we might have forked, so reify kernel state if necessary */ |
2923 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2264 | /* calculate blocking time */ |
2930 | /* calculate blocking time */ |
2265 | { |
2931 | { |
2266 | ev_tstamp waittime = 0.; |
2932 | ev_tstamp waittime = 0.; |
2267 | ev_tstamp sleeptime = 0.; |
2933 | ev_tstamp sleeptime = 0.; |
2268 | |
2934 | |
|
|
2935 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2936 | ev_tstamp prev_mn_now = mn_now; |
|
|
2937 | |
|
|
2938 | /* update time to cancel out callback processing overhead */ |
|
|
2939 | time_update (EV_A_ 1e100); |
|
|
2940 | |
|
|
2941 | /* from now on, we want a pipe-wake-up */ |
|
|
2942 | pipe_write_wanted = 1; |
|
|
2943 | |
|
|
2944 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2945 | |
2269 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2946 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2270 | { |
2947 | { |
2271 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2272 | ev_tstamp prev_mn_now = mn_now; |
|
|
2273 | |
|
|
2274 | /* update time to cancel out callback processing overhead */ |
|
|
2275 | time_update (EV_A_ 1e100); |
|
|
2276 | |
|
|
2277 | waittime = MAX_BLOCKTIME; |
2948 | waittime = MAX_BLOCKTIME; |
2278 | |
2949 | |
2279 | if (timercnt) |
2950 | if (timercnt) |
2280 | { |
2951 | { |
2281 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2952 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2282 | if (waittime > to) waittime = to; |
2953 | if (waittime > to) waittime = to; |
2283 | } |
2954 | } |
2284 | |
2955 | |
2285 | #if EV_PERIODIC_ENABLE |
2956 | #if EV_PERIODIC_ENABLE |
2286 | if (periodiccnt) |
2957 | if (periodiccnt) |
2287 | { |
2958 | { |
2288 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2959 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2289 | if (waittime > to) waittime = to; |
2960 | if (waittime > to) waittime = to; |
2290 | } |
2961 | } |
2291 | #endif |
2962 | #endif |
2292 | |
2963 | |
2293 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2964 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2294 | if (expect_false (waittime < timeout_blocktime)) |
2965 | if (expect_false (waittime < timeout_blocktime)) |
2295 | waittime = timeout_blocktime; |
2966 | waittime = timeout_blocktime; |
|
|
2967 | |
|
|
2968 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2969 | /* to pass a minimum nonzero value to the backend */ |
|
|
2970 | if (expect_false (waittime < backend_mintime)) |
|
|
2971 | waittime = backend_mintime; |
2296 | |
2972 | |
2297 | /* extra check because io_blocktime is commonly 0 */ |
2973 | /* extra check because io_blocktime is commonly 0 */ |
2298 | if (expect_false (io_blocktime)) |
2974 | if (expect_false (io_blocktime)) |
2299 | { |
2975 | { |
2300 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2976 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2301 | |
2977 | |
2302 | if (sleeptime > waittime - backend_fudge) |
2978 | if (sleeptime > waittime - backend_mintime) |
2303 | sleeptime = waittime - backend_fudge; |
2979 | sleeptime = waittime - backend_mintime; |
2304 | |
2980 | |
2305 | if (expect_true (sleeptime > 0.)) |
2981 | if (expect_true (sleeptime > 0.)) |
2306 | { |
2982 | { |
2307 | ev_sleep (sleeptime); |
2983 | ev_sleep (sleeptime); |
2308 | waittime -= sleeptime; |
2984 | waittime -= sleeptime; |
2309 | } |
2985 | } |
2310 | } |
2986 | } |
2311 | } |
2987 | } |
2312 | |
2988 | |
2313 | #if EV_MINIMAL < 2 |
2989 | #if EV_FEATURE_API |
2314 | ++loop_count; |
2990 | ++loop_count; |
2315 | #endif |
2991 | #endif |
2316 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2992 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2317 | backend_poll (EV_A_ waittime); |
2993 | backend_poll (EV_A_ waittime); |
2318 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2994 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2995 | |
|
|
2996 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
2997 | |
|
|
2998 | if (pipe_write_skipped) |
|
|
2999 | { |
|
|
3000 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3001 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3002 | } |
|
|
3003 | |
2319 | |
3004 | |
2320 | /* update ev_rt_now, do magic */ |
3005 | /* update ev_rt_now, do magic */ |
2321 | time_update (EV_A_ waittime + sleeptime); |
3006 | time_update (EV_A_ waittime + sleeptime); |
2322 | } |
3007 | } |
2323 | |
3008 | |
… | |
… | |
2330 | #if EV_IDLE_ENABLE |
3015 | #if EV_IDLE_ENABLE |
2331 | /* queue idle watchers unless other events are pending */ |
3016 | /* queue idle watchers unless other events are pending */ |
2332 | idle_reify (EV_A); |
3017 | idle_reify (EV_A); |
2333 | #endif |
3018 | #endif |
2334 | |
3019 | |
|
|
3020 | #if EV_CHECK_ENABLE |
2335 | /* queue check watchers, to be executed first */ |
3021 | /* queue check watchers, to be executed first */ |
2336 | if (expect_false (checkcnt)) |
3022 | if (expect_false (checkcnt)) |
2337 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3023 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3024 | #endif |
2338 | |
3025 | |
2339 | EV_INVOKE_PENDING; |
3026 | EV_INVOKE_PENDING; |
2340 | } |
3027 | } |
2341 | while (expect_true ( |
3028 | while (expect_true ( |
2342 | activecnt |
3029 | activecnt |
2343 | && !loop_done |
3030 | && !loop_done |
2344 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3031 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2345 | )); |
3032 | )); |
2346 | |
3033 | |
2347 | if (loop_done == EVUNLOOP_ONE) |
3034 | if (loop_done == EVBREAK_ONE) |
2348 | loop_done = EVUNLOOP_CANCEL; |
3035 | loop_done = EVBREAK_CANCEL; |
2349 | |
3036 | |
2350 | #if EV_MINIMAL < 2 |
3037 | #if EV_FEATURE_API |
2351 | --loop_depth; |
3038 | --loop_depth; |
2352 | #endif |
3039 | #endif |
2353 | } |
3040 | } |
2354 | |
3041 | |
2355 | void |
3042 | void |
2356 | ev_unloop (EV_P_ int how) |
3043 | ev_break (EV_P_ int how) |
2357 | { |
3044 | { |
2358 | loop_done = how; |
3045 | loop_done = how; |
2359 | } |
3046 | } |
2360 | |
3047 | |
2361 | void |
3048 | void |
… | |
… | |
2481 | |
3168 | |
2482 | if (expect_false (ev_is_active (w))) |
3169 | if (expect_false (ev_is_active (w))) |
2483 | return; |
3170 | return; |
2484 | |
3171 | |
2485 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3172 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2486 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3173 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2487 | |
3174 | |
2488 | EV_FREQUENT_CHECK; |
3175 | EV_FREQUENT_CHECK; |
2489 | |
3176 | |
2490 | ev_start (EV_A_ (W)w, 1); |
3177 | ev_start (EV_A_ (W)w, 1); |
2491 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3178 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2509 | EV_FREQUENT_CHECK; |
3196 | EV_FREQUENT_CHECK; |
2510 | |
3197 | |
2511 | wlist_del (&anfds[w->fd].head, (WL)w); |
3198 | wlist_del (&anfds[w->fd].head, (WL)w); |
2512 | ev_stop (EV_A_ (W)w); |
3199 | ev_stop (EV_A_ (W)w); |
2513 | |
3200 | |
2514 | fd_change (EV_A_ w->fd, 1); |
3201 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2515 | |
3202 | |
2516 | EV_FREQUENT_CHECK; |
3203 | EV_FREQUENT_CHECK; |
2517 | } |
3204 | } |
2518 | |
3205 | |
2519 | void noinline |
3206 | void noinline |
… | |
… | |
2561 | timers [active] = timers [timercnt + HEAP0]; |
3248 | timers [active] = timers [timercnt + HEAP0]; |
2562 | adjustheap (timers, timercnt, active); |
3249 | adjustheap (timers, timercnt, active); |
2563 | } |
3250 | } |
2564 | } |
3251 | } |
2565 | |
3252 | |
2566 | EV_FREQUENT_CHECK; |
|
|
2567 | |
|
|
2568 | ev_at (w) -= mn_now; |
3253 | ev_at (w) -= mn_now; |
2569 | |
3254 | |
2570 | ev_stop (EV_A_ (W)w); |
3255 | ev_stop (EV_A_ (W)w); |
|
|
3256 | |
|
|
3257 | EV_FREQUENT_CHECK; |
2571 | } |
3258 | } |
2572 | |
3259 | |
2573 | void noinline |
3260 | void noinline |
2574 | ev_timer_again (EV_P_ ev_timer *w) |
3261 | ev_timer_again (EV_P_ ev_timer *w) |
2575 | { |
3262 | { |
… | |
… | |
2611 | if (w->reschedule_cb) |
3298 | if (w->reschedule_cb) |
2612 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3299 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2613 | else if (w->interval) |
3300 | else if (w->interval) |
2614 | { |
3301 | { |
2615 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3302 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2616 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3303 | periodic_recalc (EV_A_ w); |
2617 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2618 | } |
3304 | } |
2619 | else |
3305 | else |
2620 | ev_at (w) = w->offset; |
3306 | ev_at (w) = w->offset; |
2621 | |
3307 | |
2622 | EV_FREQUENT_CHECK; |
3308 | EV_FREQUENT_CHECK; |
… | |
… | |
2654 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3340 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2655 | adjustheap (periodics, periodiccnt, active); |
3341 | adjustheap (periodics, periodiccnt, active); |
2656 | } |
3342 | } |
2657 | } |
3343 | } |
2658 | |
3344 | |
2659 | EV_FREQUENT_CHECK; |
|
|
2660 | |
|
|
2661 | ev_stop (EV_A_ (W)w); |
3345 | ev_stop (EV_A_ (W)w); |
|
|
3346 | |
|
|
3347 | EV_FREQUENT_CHECK; |
2662 | } |
3348 | } |
2663 | |
3349 | |
2664 | void noinline |
3350 | void noinline |
2665 | ev_periodic_again (EV_P_ ev_periodic *w) |
3351 | ev_periodic_again (EV_P_ ev_periodic *w) |
2666 | { |
3352 | { |
… | |
… | |
2671 | #endif |
3357 | #endif |
2672 | |
3358 | |
2673 | #ifndef SA_RESTART |
3359 | #ifndef SA_RESTART |
2674 | # define SA_RESTART 0 |
3360 | # define SA_RESTART 0 |
2675 | #endif |
3361 | #endif |
|
|
3362 | |
|
|
3363 | #if EV_SIGNAL_ENABLE |
2676 | |
3364 | |
2677 | void noinline |
3365 | void noinline |
2678 | ev_signal_start (EV_P_ ev_signal *w) |
3366 | ev_signal_start (EV_P_ ev_signal *w) |
2679 | { |
3367 | { |
2680 | if (expect_false (ev_is_active (w))) |
3368 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2727 | if (!((WL)w)->next) |
3415 | if (!((WL)w)->next) |
2728 | # if EV_USE_SIGNALFD |
3416 | # if EV_USE_SIGNALFD |
2729 | if (sigfd < 0) /*TODO*/ |
3417 | if (sigfd < 0) /*TODO*/ |
2730 | # endif |
3418 | # endif |
2731 | { |
3419 | { |
2732 | # if _WIN32 |
3420 | # ifdef _WIN32 |
|
|
3421 | evpipe_init (EV_A); |
|
|
3422 | |
2733 | signal (w->signum, ev_sighandler); |
3423 | signal (w->signum, ev_sighandler); |
2734 | # else |
3424 | # else |
2735 | struct sigaction sa; |
3425 | struct sigaction sa; |
2736 | |
3426 | |
2737 | evpipe_init (EV_A); |
3427 | evpipe_init (EV_A); |
… | |
… | |
2739 | sa.sa_handler = ev_sighandler; |
3429 | sa.sa_handler = ev_sighandler; |
2740 | sigfillset (&sa.sa_mask); |
3430 | sigfillset (&sa.sa_mask); |
2741 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3431 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2742 | sigaction (w->signum, &sa, 0); |
3432 | sigaction (w->signum, &sa, 0); |
2743 | |
3433 | |
|
|
3434 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3435 | { |
2744 | sigemptyset (&sa.sa_mask); |
3436 | sigemptyset (&sa.sa_mask); |
2745 | sigaddset (&sa.sa_mask, w->signum); |
3437 | sigaddset (&sa.sa_mask, w->signum); |
2746 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3438 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3439 | } |
2747 | #endif |
3440 | #endif |
2748 | } |
3441 | } |
2749 | |
3442 | |
2750 | EV_FREQUENT_CHECK; |
3443 | EV_FREQUENT_CHECK; |
2751 | } |
3444 | } |
… | |
… | |
2768 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
3461 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2769 | #endif |
3462 | #endif |
2770 | #if EV_USE_SIGNALFD |
3463 | #if EV_USE_SIGNALFD |
2771 | if (sigfd >= 0) |
3464 | if (sigfd >= 0) |
2772 | { |
3465 | { |
2773 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
3466 | sigset_t ss; |
|
|
3467 | |
|
|
3468 | sigemptyset (&ss); |
|
|
3469 | sigaddset (&ss, w->signum); |
2774 | sigdelset (&sigfd_set, w->signum); |
3470 | sigdelset (&sigfd_set, w->signum); |
|
|
3471 | |
2775 | signalfd (sigfd, &sigfd_set, 0); |
3472 | signalfd (sigfd, &sigfd_set, 0); |
2776 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
3473 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2777 | /*TODO: maybe unblock signal? */ |
|
|
2778 | } |
3474 | } |
2779 | else |
3475 | else |
2780 | #endif |
3476 | #endif |
2781 | signal (w->signum, SIG_DFL); |
3477 | signal (w->signum, SIG_DFL); |
2782 | } |
3478 | } |
2783 | |
3479 | |
2784 | EV_FREQUENT_CHECK; |
3480 | EV_FREQUENT_CHECK; |
2785 | } |
3481 | } |
2786 | |
3482 | |
|
|
3483 | #endif |
|
|
3484 | |
|
|
3485 | #if EV_CHILD_ENABLE |
|
|
3486 | |
2787 | void |
3487 | void |
2788 | ev_child_start (EV_P_ ev_child *w) |
3488 | ev_child_start (EV_P_ ev_child *w) |
2789 | { |
3489 | { |
2790 | #if EV_MULTIPLICITY |
3490 | #if EV_MULTIPLICITY |
2791 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3491 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2794 | return; |
3494 | return; |
2795 | |
3495 | |
2796 | EV_FREQUENT_CHECK; |
3496 | EV_FREQUENT_CHECK; |
2797 | |
3497 | |
2798 | ev_start (EV_A_ (W)w, 1); |
3498 | ev_start (EV_A_ (W)w, 1); |
2799 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3499 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2800 | |
3500 | |
2801 | EV_FREQUENT_CHECK; |
3501 | EV_FREQUENT_CHECK; |
2802 | } |
3502 | } |
2803 | |
3503 | |
2804 | void |
3504 | void |
… | |
… | |
2808 | if (expect_false (!ev_is_active (w))) |
3508 | if (expect_false (!ev_is_active (w))) |
2809 | return; |
3509 | return; |
2810 | |
3510 | |
2811 | EV_FREQUENT_CHECK; |
3511 | EV_FREQUENT_CHECK; |
2812 | |
3512 | |
2813 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3513 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2814 | ev_stop (EV_A_ (W)w); |
3514 | ev_stop (EV_A_ (W)w); |
2815 | |
3515 | |
2816 | EV_FREQUENT_CHECK; |
3516 | EV_FREQUENT_CHECK; |
2817 | } |
3517 | } |
|
|
3518 | |
|
|
3519 | #endif |
2818 | |
3520 | |
2819 | #if EV_STAT_ENABLE |
3521 | #if EV_STAT_ENABLE |
2820 | |
3522 | |
2821 | # ifdef _WIN32 |
3523 | # ifdef _WIN32 |
2822 | # undef lstat |
3524 | # undef lstat |
… | |
… | |
2828 | #define MIN_STAT_INTERVAL 0.1074891 |
3530 | #define MIN_STAT_INTERVAL 0.1074891 |
2829 | |
3531 | |
2830 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3532 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2831 | |
3533 | |
2832 | #if EV_USE_INOTIFY |
3534 | #if EV_USE_INOTIFY |
2833 | # define EV_INOTIFY_BUFSIZE 8192 |
3535 | |
|
|
3536 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3537 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2834 | |
3538 | |
2835 | static void noinline |
3539 | static void noinline |
2836 | infy_add (EV_P_ ev_stat *w) |
3540 | infy_add (EV_P_ ev_stat *w) |
2837 | { |
3541 | { |
2838 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3542 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2839 | |
3543 | |
2840 | if (w->wd < 0) |
3544 | if (w->wd >= 0) |
|
|
3545 | { |
|
|
3546 | struct statfs sfs; |
|
|
3547 | |
|
|
3548 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3549 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3550 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3551 | |
|
|
3552 | if (!fs_2625) |
|
|
3553 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3554 | else if (!statfs (w->path, &sfs) |
|
|
3555 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3556 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3557 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3558 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3559 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3560 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3561 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3562 | else |
|
|
3563 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2841 | { |
3564 | } |
|
|
3565 | else |
|
|
3566 | { |
|
|
3567 | /* can't use inotify, continue to stat */ |
2842 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3568 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2843 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2844 | |
3569 | |
2845 | /* monitor some parent directory for speedup hints */ |
3570 | /* if path is not there, monitor some parent directory for speedup hints */ |
2846 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3571 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2847 | /* but an efficiency issue only */ |
3572 | /* but an efficiency issue only */ |
2848 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3573 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2849 | { |
3574 | { |
2850 | char path [4096]; |
3575 | char path [4096]; |
… | |
… | |
2860 | if (!pend || pend == path) |
3585 | if (!pend || pend == path) |
2861 | break; |
3586 | break; |
2862 | |
3587 | |
2863 | *pend = 0; |
3588 | *pend = 0; |
2864 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3589 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2865 | } |
3590 | } |
2866 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3591 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2867 | } |
3592 | } |
2868 | } |
3593 | } |
2869 | |
3594 | |
2870 | if (w->wd >= 0) |
3595 | if (w->wd >= 0) |
2871 | { |
|
|
2872 | struct statfs sfs; |
|
|
2873 | |
|
|
2874 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3596 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2875 | |
3597 | |
2876 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3598 | /* now re-arm timer, if required */ |
2877 | /* unless the filesystem it known to be local, we therefore still poll */ |
3599 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2878 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2879 | |
|
|
2880 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2881 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2882 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2883 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2884 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2885 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2886 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2887 | return; |
|
|
2888 | |
|
|
2889 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2890 | ev_timer_again (EV_A_ &w->timer); |
3600 | ev_timer_again (EV_A_ &w->timer); |
2891 | } |
3601 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2892 | } |
3602 | } |
2893 | |
3603 | |
2894 | static void noinline |
3604 | static void noinline |
2895 | infy_del (EV_P_ ev_stat *w) |
3605 | infy_del (EV_P_ ev_stat *w) |
2896 | { |
3606 | { |
… | |
… | |
2899 | |
3609 | |
2900 | if (wd < 0) |
3610 | if (wd < 0) |
2901 | return; |
3611 | return; |
2902 | |
3612 | |
2903 | w->wd = -2; |
3613 | w->wd = -2; |
2904 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3614 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2905 | wlist_del (&fs_hash [slot].head, (WL)w); |
3615 | wlist_del (&fs_hash [slot].head, (WL)w); |
2906 | |
3616 | |
2907 | /* remove this watcher, if others are watching it, they will rearm */ |
3617 | /* remove this watcher, if others are watching it, they will rearm */ |
2908 | inotify_rm_watch (fs_fd, wd); |
3618 | inotify_rm_watch (fs_fd, wd); |
2909 | } |
3619 | } |
… | |
… | |
2911 | static void noinline |
3621 | static void noinline |
2912 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3622 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2913 | { |
3623 | { |
2914 | if (slot < 0) |
3624 | if (slot < 0) |
2915 | /* overflow, need to check for all hash slots */ |
3625 | /* overflow, need to check for all hash slots */ |
2916 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3626 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2917 | infy_wd (EV_A_ slot, wd, ev); |
3627 | infy_wd (EV_A_ slot, wd, ev); |
2918 | else |
3628 | else |
2919 | { |
3629 | { |
2920 | WL w_; |
3630 | WL w_; |
2921 | |
3631 | |
2922 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3632 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2923 | { |
3633 | { |
2924 | ev_stat *w = (ev_stat *)w_; |
3634 | ev_stat *w = (ev_stat *)w_; |
2925 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3635 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2926 | |
3636 | |
2927 | if (w->wd == wd || wd == -1) |
3637 | if (w->wd == wd || wd == -1) |
2928 | { |
3638 | { |
2929 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3639 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2930 | { |
3640 | { |
2931 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3641 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2932 | w->wd = -1; |
3642 | w->wd = -1; |
2933 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3643 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2934 | } |
3644 | } |
2935 | |
3645 | |
2936 | stat_timer_cb (EV_A_ &w->timer, 0); |
3646 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2941 | |
3651 | |
2942 | static void |
3652 | static void |
2943 | infy_cb (EV_P_ ev_io *w, int revents) |
3653 | infy_cb (EV_P_ ev_io *w, int revents) |
2944 | { |
3654 | { |
2945 | char buf [EV_INOTIFY_BUFSIZE]; |
3655 | char buf [EV_INOTIFY_BUFSIZE]; |
2946 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2947 | int ofs; |
3656 | int ofs; |
2948 | int len = read (fs_fd, buf, sizeof (buf)); |
3657 | int len = read (fs_fd, buf, sizeof (buf)); |
2949 | |
3658 | |
2950 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3659 | for (ofs = 0; ofs < len; ) |
|
|
3660 | { |
|
|
3661 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2951 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3662 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3663 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3664 | } |
2952 | } |
3665 | } |
2953 | |
3666 | |
2954 | inline_size void |
3667 | inline_size void ecb_cold |
2955 | check_2625 (EV_P) |
3668 | ev_check_2625 (EV_P) |
2956 | { |
3669 | { |
2957 | /* kernels < 2.6.25 are borked |
3670 | /* kernels < 2.6.25 are borked |
2958 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3671 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2959 | */ |
3672 | */ |
2960 | struct utsname buf; |
3673 | if (ev_linux_version () < 0x020619) |
2961 | int major, minor, micro; |
|
|
2962 | |
|
|
2963 | if (uname (&buf)) |
|
|
2964 | return; |
3674 | return; |
2965 | |
3675 | |
2966 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2967 | return; |
|
|
2968 | |
|
|
2969 | if (major < 2 |
|
|
2970 | || (major == 2 && minor < 6) |
|
|
2971 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2972 | return; |
|
|
2973 | |
|
|
2974 | fs_2625 = 1; |
3676 | fs_2625 = 1; |
|
|
3677 | } |
|
|
3678 | |
|
|
3679 | inline_size int |
|
|
3680 | infy_newfd (void) |
|
|
3681 | { |
|
|
3682 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3683 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3684 | if (fd >= 0) |
|
|
3685 | return fd; |
|
|
3686 | #endif |
|
|
3687 | return inotify_init (); |
2975 | } |
3688 | } |
2976 | |
3689 | |
2977 | inline_size void |
3690 | inline_size void |
2978 | infy_init (EV_P) |
3691 | infy_init (EV_P) |
2979 | { |
3692 | { |
2980 | if (fs_fd != -2) |
3693 | if (fs_fd != -2) |
2981 | return; |
3694 | return; |
2982 | |
3695 | |
2983 | fs_fd = -1; |
3696 | fs_fd = -1; |
2984 | |
3697 | |
2985 | check_2625 (EV_A); |
3698 | ev_check_2625 (EV_A); |
2986 | |
3699 | |
2987 | fs_fd = inotify_init (); |
3700 | fs_fd = infy_newfd (); |
2988 | |
3701 | |
2989 | if (fs_fd >= 0) |
3702 | if (fs_fd >= 0) |
2990 | { |
3703 | { |
|
|
3704 | fd_intern (fs_fd); |
2991 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3705 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2992 | ev_set_priority (&fs_w, EV_MAXPRI); |
3706 | ev_set_priority (&fs_w, EV_MAXPRI); |
2993 | ev_io_start (EV_A_ &fs_w); |
3707 | ev_io_start (EV_A_ &fs_w); |
|
|
3708 | ev_unref (EV_A); |
2994 | } |
3709 | } |
2995 | } |
3710 | } |
2996 | |
3711 | |
2997 | inline_size void |
3712 | inline_size void |
2998 | infy_fork (EV_P) |
3713 | infy_fork (EV_P) |
… | |
… | |
3000 | int slot; |
3715 | int slot; |
3001 | |
3716 | |
3002 | if (fs_fd < 0) |
3717 | if (fs_fd < 0) |
3003 | return; |
3718 | return; |
3004 | |
3719 | |
|
|
3720 | ev_ref (EV_A); |
|
|
3721 | ev_io_stop (EV_A_ &fs_w); |
3005 | close (fs_fd); |
3722 | close (fs_fd); |
3006 | fs_fd = inotify_init (); |
3723 | fs_fd = infy_newfd (); |
3007 | |
3724 | |
|
|
3725 | if (fs_fd >= 0) |
|
|
3726 | { |
|
|
3727 | fd_intern (fs_fd); |
|
|
3728 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3729 | ev_io_start (EV_A_ &fs_w); |
|
|
3730 | ev_unref (EV_A); |
|
|
3731 | } |
|
|
3732 | |
3008 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3733 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3009 | { |
3734 | { |
3010 | WL w_ = fs_hash [slot].head; |
3735 | WL w_ = fs_hash [slot].head; |
3011 | fs_hash [slot].head = 0; |
3736 | fs_hash [slot].head = 0; |
3012 | |
3737 | |
3013 | while (w_) |
3738 | while (w_) |
… | |
… | |
3018 | w->wd = -1; |
3743 | w->wd = -1; |
3019 | |
3744 | |
3020 | if (fs_fd >= 0) |
3745 | if (fs_fd >= 0) |
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3746 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3022 | else |
3747 | else |
|
|
3748 | { |
|
|
3749 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3750 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3023 | ev_timer_again (EV_A_ &w->timer); |
3751 | ev_timer_again (EV_A_ &w->timer); |
|
|
3752 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3753 | } |
3024 | } |
3754 | } |
3025 | } |
3755 | } |
3026 | } |
3756 | } |
3027 | |
3757 | |
3028 | #endif |
3758 | #endif |
… | |
… | |
3045 | static void noinline |
3775 | static void noinline |
3046 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3776 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3047 | { |
3777 | { |
3048 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3778 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3049 | |
3779 | |
3050 | /* we copy this here each the time so that */ |
3780 | ev_statdata prev = w->attr; |
3051 | /* prev has the old value when the callback gets invoked */ |
|
|
3052 | w->prev = w->attr; |
|
|
3053 | ev_stat_stat (EV_A_ w); |
3781 | ev_stat_stat (EV_A_ w); |
3054 | |
3782 | |
3055 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3783 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3056 | if ( |
3784 | if ( |
3057 | w->prev.st_dev != w->attr.st_dev |
3785 | prev.st_dev != w->attr.st_dev |
3058 | || w->prev.st_ino != w->attr.st_ino |
3786 | || prev.st_ino != w->attr.st_ino |
3059 | || w->prev.st_mode != w->attr.st_mode |
3787 | || prev.st_mode != w->attr.st_mode |
3060 | || w->prev.st_nlink != w->attr.st_nlink |
3788 | || prev.st_nlink != w->attr.st_nlink |
3061 | || w->prev.st_uid != w->attr.st_uid |
3789 | || prev.st_uid != w->attr.st_uid |
3062 | || w->prev.st_gid != w->attr.st_gid |
3790 | || prev.st_gid != w->attr.st_gid |
3063 | || w->prev.st_rdev != w->attr.st_rdev |
3791 | || prev.st_rdev != w->attr.st_rdev |
3064 | || w->prev.st_size != w->attr.st_size |
3792 | || prev.st_size != w->attr.st_size |
3065 | || w->prev.st_atime != w->attr.st_atime |
3793 | || prev.st_atime != w->attr.st_atime |
3066 | || w->prev.st_mtime != w->attr.st_mtime |
3794 | || prev.st_mtime != w->attr.st_mtime |
3067 | || w->prev.st_ctime != w->attr.st_ctime |
3795 | || prev.st_ctime != w->attr.st_ctime |
3068 | ) { |
3796 | ) { |
|
|
3797 | /* we only update w->prev on actual differences */ |
|
|
3798 | /* in case we test more often than invoke the callback, */ |
|
|
3799 | /* to ensure that prev is always different to attr */ |
|
|
3800 | w->prev = prev; |
|
|
3801 | |
3069 | #if EV_USE_INOTIFY |
3802 | #if EV_USE_INOTIFY |
3070 | if (fs_fd >= 0) |
3803 | if (fs_fd >= 0) |
3071 | { |
3804 | { |
3072 | infy_del (EV_A_ w); |
3805 | infy_del (EV_A_ w); |
3073 | infy_add (EV_A_ w); |
3806 | infy_add (EV_A_ w); |
… | |
… | |
3098 | |
3831 | |
3099 | if (fs_fd >= 0) |
3832 | if (fs_fd >= 0) |
3100 | infy_add (EV_A_ w); |
3833 | infy_add (EV_A_ w); |
3101 | else |
3834 | else |
3102 | #endif |
3835 | #endif |
|
|
3836 | { |
3103 | ev_timer_again (EV_A_ &w->timer); |
3837 | ev_timer_again (EV_A_ &w->timer); |
|
|
3838 | ev_unref (EV_A); |
|
|
3839 | } |
3104 | |
3840 | |
3105 | ev_start (EV_A_ (W)w, 1); |
3841 | ev_start (EV_A_ (W)w, 1); |
3106 | |
3842 | |
3107 | EV_FREQUENT_CHECK; |
3843 | EV_FREQUENT_CHECK; |
3108 | } |
3844 | } |
… | |
… | |
3117 | EV_FREQUENT_CHECK; |
3853 | EV_FREQUENT_CHECK; |
3118 | |
3854 | |
3119 | #if EV_USE_INOTIFY |
3855 | #if EV_USE_INOTIFY |
3120 | infy_del (EV_A_ w); |
3856 | infy_del (EV_A_ w); |
3121 | #endif |
3857 | #endif |
|
|
3858 | |
|
|
3859 | if (ev_is_active (&w->timer)) |
|
|
3860 | { |
|
|
3861 | ev_ref (EV_A); |
3122 | ev_timer_stop (EV_A_ &w->timer); |
3862 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3863 | } |
3123 | |
3864 | |
3124 | ev_stop (EV_A_ (W)w); |
3865 | ev_stop (EV_A_ (W)w); |
3125 | |
3866 | |
3126 | EV_FREQUENT_CHECK; |
3867 | EV_FREQUENT_CHECK; |
3127 | } |
3868 | } |
… | |
… | |
3172 | |
3913 | |
3173 | EV_FREQUENT_CHECK; |
3914 | EV_FREQUENT_CHECK; |
3174 | } |
3915 | } |
3175 | #endif |
3916 | #endif |
3176 | |
3917 | |
|
|
3918 | #if EV_PREPARE_ENABLE |
3177 | void |
3919 | void |
3178 | ev_prepare_start (EV_P_ ev_prepare *w) |
3920 | ev_prepare_start (EV_P_ ev_prepare *w) |
3179 | { |
3921 | { |
3180 | if (expect_false (ev_is_active (w))) |
3922 | if (expect_false (ev_is_active (w))) |
3181 | return; |
3923 | return; |
… | |
… | |
3207 | |
3949 | |
3208 | ev_stop (EV_A_ (W)w); |
3950 | ev_stop (EV_A_ (W)w); |
3209 | |
3951 | |
3210 | EV_FREQUENT_CHECK; |
3952 | EV_FREQUENT_CHECK; |
3211 | } |
3953 | } |
|
|
3954 | #endif |
3212 | |
3955 | |
|
|
3956 | #if EV_CHECK_ENABLE |
3213 | void |
3957 | void |
3214 | ev_check_start (EV_P_ ev_check *w) |
3958 | ev_check_start (EV_P_ ev_check *w) |
3215 | { |
3959 | { |
3216 | if (expect_false (ev_is_active (w))) |
3960 | if (expect_false (ev_is_active (w))) |
3217 | return; |
3961 | return; |
… | |
… | |
3243 | |
3987 | |
3244 | ev_stop (EV_A_ (W)w); |
3988 | ev_stop (EV_A_ (W)w); |
3245 | |
3989 | |
3246 | EV_FREQUENT_CHECK; |
3990 | EV_FREQUENT_CHECK; |
3247 | } |
3991 | } |
|
|
3992 | #endif |
3248 | |
3993 | |
3249 | #if EV_EMBED_ENABLE |
3994 | #if EV_EMBED_ENABLE |
3250 | void noinline |
3995 | void noinline |
3251 | ev_embed_sweep (EV_P_ ev_embed *w) |
3996 | ev_embed_sweep (EV_P_ ev_embed *w) |
3252 | { |
3997 | { |
3253 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3998 | ev_run (w->other, EVRUN_NOWAIT); |
3254 | } |
3999 | } |
3255 | |
4000 | |
3256 | static void |
4001 | static void |
3257 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4002 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3258 | { |
4003 | { |
3259 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4004 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3260 | |
4005 | |
3261 | if (ev_cb (w)) |
4006 | if (ev_cb (w)) |
3262 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4007 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3263 | else |
4008 | else |
3264 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4009 | ev_run (w->other, EVRUN_NOWAIT); |
3265 | } |
4010 | } |
3266 | |
4011 | |
3267 | static void |
4012 | static void |
3268 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4013 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3269 | { |
4014 | { |
… | |
… | |
3273 | EV_P = w->other; |
4018 | EV_P = w->other; |
3274 | |
4019 | |
3275 | while (fdchangecnt) |
4020 | while (fdchangecnt) |
3276 | { |
4021 | { |
3277 | fd_reify (EV_A); |
4022 | fd_reify (EV_A); |
3278 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4023 | ev_run (EV_A_ EVRUN_NOWAIT); |
3279 | } |
4024 | } |
3280 | } |
4025 | } |
3281 | } |
4026 | } |
3282 | |
4027 | |
3283 | static void |
4028 | static void |
… | |
… | |
3289 | |
4034 | |
3290 | { |
4035 | { |
3291 | EV_P = w->other; |
4036 | EV_P = w->other; |
3292 | |
4037 | |
3293 | ev_loop_fork (EV_A); |
4038 | ev_loop_fork (EV_A); |
3294 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4039 | ev_run (EV_A_ EVRUN_NOWAIT); |
3295 | } |
4040 | } |
3296 | |
4041 | |
3297 | ev_embed_start (EV_A_ w); |
4042 | ev_embed_start (EV_A_ w); |
3298 | } |
4043 | } |
3299 | |
4044 | |
… | |
… | |
3347 | |
4092 | |
3348 | ev_io_stop (EV_A_ &w->io); |
4093 | ev_io_stop (EV_A_ &w->io); |
3349 | ev_prepare_stop (EV_A_ &w->prepare); |
4094 | ev_prepare_stop (EV_A_ &w->prepare); |
3350 | ev_fork_stop (EV_A_ &w->fork); |
4095 | ev_fork_stop (EV_A_ &w->fork); |
3351 | |
4096 | |
|
|
4097 | ev_stop (EV_A_ (W)w); |
|
|
4098 | |
3352 | EV_FREQUENT_CHECK; |
4099 | EV_FREQUENT_CHECK; |
3353 | } |
4100 | } |
3354 | #endif |
4101 | #endif |
3355 | |
4102 | |
3356 | #if EV_FORK_ENABLE |
4103 | #if EV_FORK_ENABLE |
… | |
… | |
3389 | |
4136 | |
3390 | EV_FREQUENT_CHECK; |
4137 | EV_FREQUENT_CHECK; |
3391 | } |
4138 | } |
3392 | #endif |
4139 | #endif |
3393 | |
4140 | |
|
|
4141 | #if EV_CLEANUP_ENABLE |
|
|
4142 | void |
|
|
4143 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4144 | { |
|
|
4145 | if (expect_false (ev_is_active (w))) |
|
|
4146 | return; |
|
|
4147 | |
|
|
4148 | EV_FREQUENT_CHECK; |
|
|
4149 | |
|
|
4150 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4151 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4152 | cleanups [cleanupcnt - 1] = w; |
|
|
4153 | |
|
|
4154 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4155 | ev_unref (EV_A); |
|
|
4156 | EV_FREQUENT_CHECK; |
|
|
4157 | } |
|
|
4158 | |
|
|
4159 | void |
|
|
4160 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4161 | { |
|
|
4162 | clear_pending (EV_A_ (W)w); |
|
|
4163 | if (expect_false (!ev_is_active (w))) |
|
|
4164 | return; |
|
|
4165 | |
|
|
4166 | EV_FREQUENT_CHECK; |
|
|
4167 | ev_ref (EV_A); |
|
|
4168 | |
|
|
4169 | { |
|
|
4170 | int active = ev_active (w); |
|
|
4171 | |
|
|
4172 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4173 | ev_active (cleanups [active - 1]) = active; |
|
|
4174 | } |
|
|
4175 | |
|
|
4176 | ev_stop (EV_A_ (W)w); |
|
|
4177 | |
|
|
4178 | EV_FREQUENT_CHECK; |
|
|
4179 | } |
|
|
4180 | #endif |
|
|
4181 | |
3394 | #if EV_ASYNC_ENABLE |
4182 | #if EV_ASYNC_ENABLE |
3395 | void |
4183 | void |
3396 | ev_async_start (EV_P_ ev_async *w) |
4184 | ev_async_start (EV_P_ ev_async *w) |
3397 | { |
4185 | { |
3398 | if (expect_false (ev_is_active (w))) |
4186 | if (expect_false (ev_is_active (w))) |
3399 | return; |
4187 | return; |
|
|
4188 | |
|
|
4189 | w->sent = 0; |
3400 | |
4190 | |
3401 | evpipe_init (EV_A); |
4191 | evpipe_init (EV_A); |
3402 | |
4192 | |
3403 | EV_FREQUENT_CHECK; |
4193 | EV_FREQUENT_CHECK; |
3404 | |
4194 | |
… | |
… | |
3482 | { |
4272 | { |
3483 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4273 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3484 | |
4274 | |
3485 | if (expect_false (!once)) |
4275 | if (expect_false (!once)) |
3486 | { |
4276 | { |
3487 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4277 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3488 | return; |
4278 | return; |
3489 | } |
4279 | } |
3490 | |
4280 | |
3491 | once->cb = cb; |
4281 | once->cb = cb; |
3492 | once->arg = arg; |
4282 | once->arg = arg; |
… | |
… | |
3507 | } |
4297 | } |
3508 | |
4298 | |
3509 | /*****************************************************************************/ |
4299 | /*****************************************************************************/ |
3510 | |
4300 | |
3511 | #if EV_WALK_ENABLE |
4301 | #if EV_WALK_ENABLE |
3512 | void |
4302 | void ecb_cold |
3513 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4303 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3514 | { |
4304 | { |
3515 | int i, j; |
4305 | int i, j; |
3516 | ev_watcher_list *wl, *wn; |
4306 | ev_watcher_list *wl, *wn; |
3517 | |
4307 | |
… | |
… | |
3561 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4351 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3562 | #endif |
4352 | #endif |
3563 | |
4353 | |
3564 | #if EV_IDLE_ENABLE |
4354 | #if EV_IDLE_ENABLE |
3565 | if (types & EV_IDLE) |
4355 | if (types & EV_IDLE) |
3566 | for (j = NUMPRI; i--; ) |
4356 | for (j = NUMPRI; j--; ) |
3567 | for (i = idlecnt [j]; i--; ) |
4357 | for (i = idlecnt [j]; i--; ) |
3568 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4358 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3569 | #endif |
4359 | #endif |
3570 | |
4360 | |
3571 | #if EV_FORK_ENABLE |
4361 | #if EV_FORK_ENABLE |
… | |
… | |
3579 | if (types & EV_ASYNC) |
4369 | if (types & EV_ASYNC) |
3580 | for (i = asynccnt; i--; ) |
4370 | for (i = asynccnt; i--; ) |
3581 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4371 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3582 | #endif |
4372 | #endif |
3583 | |
4373 | |
|
|
4374 | #if EV_PREPARE_ENABLE |
3584 | if (types & EV_PREPARE) |
4375 | if (types & EV_PREPARE) |
3585 | for (i = preparecnt; i--; ) |
4376 | for (i = preparecnt; i--; ) |
3586 | #if EV_EMBED_ENABLE |
4377 | # if EV_EMBED_ENABLE |
3587 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4378 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3588 | #endif |
4379 | # endif |
3589 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4380 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4381 | #endif |
3590 | |
4382 | |
|
|
4383 | #if EV_CHECK_ENABLE |
3591 | if (types & EV_CHECK) |
4384 | if (types & EV_CHECK) |
3592 | for (i = checkcnt; i--; ) |
4385 | for (i = checkcnt; i--; ) |
3593 | cb (EV_A_ EV_CHECK, checks [i]); |
4386 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4387 | #endif |
3594 | |
4388 | |
|
|
4389 | #if EV_SIGNAL_ENABLE |
3595 | if (types & EV_SIGNAL) |
4390 | if (types & EV_SIGNAL) |
3596 | for (i = 0; i < EV_NSIG - 1; ++i) |
4391 | for (i = 0; i < EV_NSIG - 1; ++i) |
3597 | for (wl = signals [i].head; wl; ) |
4392 | for (wl = signals [i].head; wl; ) |
3598 | { |
4393 | { |
3599 | wn = wl->next; |
4394 | wn = wl->next; |
3600 | cb (EV_A_ EV_SIGNAL, wl); |
4395 | cb (EV_A_ EV_SIGNAL, wl); |
3601 | wl = wn; |
4396 | wl = wn; |
3602 | } |
4397 | } |
|
|
4398 | #endif |
3603 | |
4399 | |
|
|
4400 | #if EV_CHILD_ENABLE |
3604 | if (types & EV_CHILD) |
4401 | if (types & EV_CHILD) |
3605 | for (i = EV_PID_HASHSIZE; i--; ) |
4402 | for (i = (EV_PID_HASHSIZE); i--; ) |
3606 | for (wl = childs [i]; wl; ) |
4403 | for (wl = childs [i]; wl; ) |
3607 | { |
4404 | { |
3608 | wn = wl->next; |
4405 | wn = wl->next; |
3609 | cb (EV_A_ EV_CHILD, wl); |
4406 | cb (EV_A_ EV_CHILD, wl); |
3610 | wl = wn; |
4407 | wl = wn; |
3611 | } |
4408 | } |
|
|
4409 | #endif |
3612 | /* EV_STAT 0x00001000 /* stat data changed */ |
4410 | /* EV_STAT 0x00001000 /* stat data changed */ |
3613 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4411 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3614 | } |
4412 | } |
3615 | #endif |
4413 | #endif |
3616 | |
4414 | |
3617 | #if EV_MULTIPLICITY |
4415 | #if EV_MULTIPLICITY |
3618 | #include "ev_wrap.h" |
4416 | #include "ev_wrap.h" |
3619 | #endif |
4417 | #endif |
3620 | |
4418 | |
3621 | #ifdef __cplusplus |
|
|
3622 | } |
|
|
3623 | #endif |
|
|
3624 | |
|
|