1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2020 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 |
40 | #pragma clang diagnostic ignored "-Wunused-value" |
41 | extern "C" { |
41 | #pragma clang diagnostic ignored "-Wcomment" |
42 | #endif |
42 | #pragma clang diagnostic ignored "-Wextern-initializer" |
43 | |
43 | |
44 | /* this big block deduces configuration from config.h */ |
44 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
|
|
50 | # endif |
|
|
51 | |
|
|
52 | # if HAVE_FLOOR |
|
|
53 | # ifndef EV_USE_FLOOR |
|
|
54 | # define EV_USE_FLOOR 1 |
|
|
55 | # endif |
50 | # endif |
56 | # endif |
51 | |
57 | |
52 | # if HAVE_CLOCK_SYSCALL |
58 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
59 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
60 | # define EV_USE_CLOCK_SYSCALL 1 |
… | |
… | |
57 | # endif |
63 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
64 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
65 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
66 | # endif |
61 | # endif |
67 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
68 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
69 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
70 | # endif |
65 | |
71 | |
66 | # if HAVE_CLOCK_GETTIME |
72 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
73 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
83 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
84 | # define EV_USE_REALTIME 0 |
79 | # endif |
85 | # endif |
80 | # endif |
86 | # endif |
81 | |
87 | |
|
|
88 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
89 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
90 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
91 | # endif |
85 | # else |
92 | # else |
|
|
93 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
94 | # define EV_USE_NANOSLEEP 0 |
|
|
95 | # endif |
|
|
96 | |
|
|
97 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
98 | # ifndef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
100 | # endif |
|
|
101 | # else |
|
|
102 | # undef EV_USE_SELECT |
|
|
103 | # define EV_USE_SELECT 0 |
88 | # endif |
104 | # endif |
89 | |
105 | |
|
|
106 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
107 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
108 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
109 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
|
|
101 | # else |
110 | # else |
|
|
111 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
112 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
113 | # endif |
105 | |
114 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
115 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
116 | # ifndef EV_USE_EPOLL |
108 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
117 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
109 | # else |
|
|
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
118 | # endif |
|
|
119 | # else |
|
|
120 | # undef EV_USE_EPOLL |
|
|
121 | # define EV_USE_EPOLL 0 |
112 | # endif |
122 | # endif |
113 | |
123 | |
114 | # ifndef EV_USE_KQUEUE |
124 | # if HAVE_LINUX_AIO_ABI_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
125 | # ifndef EV_USE_LINUXAIO |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
126 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
127 | # endif |
|
|
128 | # else |
|
|
129 | # undef EV_USE_LINUXAIO |
|
|
130 | # define EV_USE_LINUXAIO 0 |
120 | # endif |
131 | # endif |
121 | |
132 | |
|
|
133 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
122 | # ifndef EV_USE_PORT |
134 | # ifndef EV_USE_IOURING |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
124 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
135 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
125 | # else |
|
|
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
136 | # endif |
128 | # endif |
|
|
129 | |
|
|
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
132 | # define EV_USE_INOTIFY EV_FEATURE_OS |
|
|
133 | # else |
137 | # else |
|
|
138 | # undef EV_USE_IOURING |
134 | # define EV_USE_INOTIFY 0 |
139 | # define EV_USE_IOURING 0 |
135 | # endif |
|
|
136 | # endif |
|
|
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
|
|
146 | # ifndef EV_USE_EVENTFD |
|
|
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
|
|
152 | # endif |
140 | # endif |
153 | |
141 | |
|
|
142 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
|
|
143 | # ifndef EV_USE_KQUEUE |
|
|
144 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
|
|
145 | # endif |
|
|
146 | # else |
|
|
147 | # undef EV_USE_KQUEUE |
|
|
148 | # define EV_USE_KQUEUE 0 |
154 | #endif |
149 | # endif |
|
|
150 | |
|
|
151 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
152 | # ifndef EV_USE_PORT |
|
|
153 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
|
|
154 | # endif |
|
|
155 | # else |
|
|
156 | # undef EV_USE_PORT |
|
|
157 | # define EV_USE_PORT 0 |
|
|
158 | # endif |
155 | |
159 | |
156 | #include <math.h> |
160 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
161 | # ifndef EV_USE_INOTIFY |
|
|
162 | # define EV_USE_INOTIFY EV_FEATURE_OS |
|
|
163 | # endif |
|
|
164 | # else |
|
|
165 | # undef EV_USE_INOTIFY |
|
|
166 | # define EV_USE_INOTIFY 0 |
|
|
167 | # endif |
|
|
168 | |
|
|
169 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
170 | # ifndef EV_USE_SIGNALFD |
|
|
171 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
172 | # endif |
|
|
173 | # else |
|
|
174 | # undef EV_USE_SIGNALFD |
|
|
175 | # define EV_USE_SIGNALFD 0 |
|
|
176 | # endif |
|
|
177 | |
|
|
178 | # if HAVE_EVENTFD |
|
|
179 | # ifndef EV_USE_EVENTFD |
|
|
180 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
181 | # endif |
|
|
182 | # else |
|
|
183 | # undef EV_USE_EVENTFD |
|
|
184 | # define EV_USE_EVENTFD 0 |
|
|
185 | # endif |
|
|
186 | |
|
|
187 | # if HAVE_SYS_TIMERFD_H |
|
|
188 | # ifndef EV_USE_TIMERFD |
|
|
189 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
190 | # endif |
|
|
191 | # else |
|
|
192 | # undef EV_USE_TIMERFD |
|
|
193 | # define EV_USE_TIMERFD 0 |
|
|
194 | # endif |
|
|
195 | |
|
|
196 | #endif |
|
|
197 | |
|
|
198 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
199 | * a limit of 1024 into their select. Where people have brains, |
|
|
200 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
201 | * ordered to have a vacuum, or they do anything for money. |
|
|
202 | * This might help. Or not. |
|
|
203 | * Note that this must be defined early, as other include files |
|
|
204 | * will rely on this define as well. |
|
|
205 | */ |
|
|
206 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
207 | |
157 | #include <stdlib.h> |
208 | #include <stdlib.h> |
158 | #include <string.h> |
209 | #include <string.h> |
159 | #include <fcntl.h> |
210 | #include <fcntl.h> |
160 | #include <stddef.h> |
211 | #include <stddef.h> |
161 | |
212 | |
… | |
… | |
171 | |
222 | |
172 | #ifdef EV_H |
223 | #ifdef EV_H |
173 | # include EV_H |
224 | # include EV_H |
174 | #else |
225 | #else |
175 | # include "ev.h" |
226 | # include "ev.h" |
|
|
227 | #endif |
|
|
228 | |
|
|
229 | #if EV_NO_THREADS |
|
|
230 | # undef EV_NO_SMP |
|
|
231 | # define EV_NO_SMP 1 |
|
|
232 | # undef ECB_NO_THREADS |
|
|
233 | # define ECB_NO_THREADS 1 |
|
|
234 | #endif |
|
|
235 | #if EV_NO_SMP |
|
|
236 | # undef EV_NO_SMP |
|
|
237 | # define ECB_NO_SMP 1 |
176 | #endif |
238 | #endif |
177 | |
239 | |
178 | #ifndef _WIN32 |
240 | #ifndef _WIN32 |
179 | # include <sys/time.h> |
241 | # include <sys/time.h> |
180 | # include <sys/wait.h> |
242 | # include <sys/wait.h> |
181 | # include <unistd.h> |
243 | # include <unistd.h> |
182 | #else |
244 | #else |
183 | # include <io.h> |
245 | # include <io.h> |
184 | # define WIN32_LEAN_AND_MEAN |
246 | # define WIN32_LEAN_AND_MEAN |
|
|
247 | # include <winsock2.h> |
185 | # include <windows.h> |
248 | # include <windows.h> |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
249 | # ifndef EV_SELECT_IS_WINSOCKET |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
250 | # define EV_SELECT_IS_WINSOCKET 1 |
188 | # endif |
251 | # endif |
189 | # undef EV_AVOID_STDIO |
252 | # undef EV_AVOID_STDIO |
190 | #endif |
253 | #endif |
191 | |
254 | |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
255 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
193 | |
256 | |
194 | /* try to deduce the maximum number of signals on this platform */ |
257 | /* try to deduce the maximum number of signals on this platform */ |
195 | #if defined (EV_NSIG) |
258 | #if defined EV_NSIG |
196 | /* use what's provided */ |
259 | /* use what's provided */ |
197 | #elif defined (NSIG) |
260 | #elif defined NSIG |
198 | # define EV_NSIG (NSIG) |
261 | # define EV_NSIG (NSIG) |
199 | #elif defined(_NSIG) |
262 | #elif defined _NSIG |
200 | # define EV_NSIG (_NSIG) |
263 | # define EV_NSIG (_NSIG) |
201 | #elif defined (SIGMAX) |
264 | #elif defined SIGMAX |
202 | # define EV_NSIG (SIGMAX+1) |
265 | # define EV_NSIG (SIGMAX+1) |
203 | #elif defined (SIG_MAX) |
266 | #elif defined SIG_MAX |
204 | # define EV_NSIG (SIG_MAX+1) |
267 | # define EV_NSIG (SIG_MAX+1) |
205 | #elif defined (_SIG_MAX) |
268 | #elif defined _SIG_MAX |
206 | # define EV_NSIG (_SIG_MAX+1) |
269 | # define EV_NSIG (_SIG_MAX+1) |
207 | #elif defined (MAXSIG) |
270 | #elif defined MAXSIG |
208 | # define EV_NSIG (MAXSIG+1) |
271 | # define EV_NSIG (MAXSIG+1) |
209 | #elif defined (MAX_SIG) |
272 | #elif defined MAX_SIG |
210 | # define EV_NSIG (MAX_SIG+1) |
273 | # define EV_NSIG (MAX_SIG+1) |
211 | #elif defined (SIGARRAYSIZE) |
274 | #elif defined SIGARRAYSIZE |
212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
275 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
213 | #elif defined (_sys_nsig) |
276 | #elif defined _sys_nsig |
214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
277 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
215 | #else |
278 | #else |
216 | # error "unable to find value for NSIG, please report" |
279 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
217 | /* to make it compile regardless, just remove the above line, */ |
280 | #endif |
218 | /* but consider reporting it, too! :) */ |
281 | |
219 | # define EV_NSIG 65 |
282 | #ifndef EV_USE_FLOOR |
|
|
283 | # define EV_USE_FLOOR 0 |
220 | #endif |
284 | #endif |
221 | |
285 | |
222 | #ifndef EV_USE_CLOCK_SYSCALL |
286 | #ifndef EV_USE_CLOCK_SYSCALL |
223 | # if __linux && __GLIBC__ >= 2 |
287 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
288 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
225 | # else |
289 | # else |
226 | # define EV_USE_CLOCK_SYSCALL 0 |
290 | # define EV_USE_CLOCK_SYSCALL 0 |
227 | # endif |
291 | # endif |
228 | #endif |
292 | #endif |
229 | |
293 | |
|
|
294 | #if !(_POSIX_TIMERS > 0) |
|
|
295 | # ifndef EV_USE_MONOTONIC |
|
|
296 | # define EV_USE_MONOTONIC 0 |
|
|
297 | # endif |
|
|
298 | # ifndef EV_USE_REALTIME |
|
|
299 | # define EV_USE_REALTIME 0 |
|
|
300 | # endif |
|
|
301 | #endif |
|
|
302 | |
230 | #ifndef EV_USE_MONOTONIC |
303 | #ifndef EV_USE_MONOTONIC |
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
304 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
305 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
233 | # else |
306 | # else |
234 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
235 | # endif |
308 | # endif |
236 | #endif |
309 | #endif |
… | |
… | |
273 | |
346 | |
274 | #ifndef EV_USE_PORT |
347 | #ifndef EV_USE_PORT |
275 | # define EV_USE_PORT 0 |
348 | # define EV_USE_PORT 0 |
276 | #endif |
349 | #endif |
277 | |
350 | |
|
|
351 | #ifndef EV_USE_LINUXAIO |
|
|
352 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
353 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
|
|
354 | # else |
|
|
355 | # define EV_USE_LINUXAIO 0 |
|
|
356 | # endif |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #ifndef EV_USE_IOURING |
|
|
360 | # if __linux /* later checks might disable again */ |
|
|
361 | # define EV_USE_IOURING 1 |
|
|
362 | # else |
|
|
363 | # define EV_USE_IOURING 0 |
|
|
364 | # endif |
|
|
365 | #endif |
|
|
366 | |
278 | #ifndef EV_USE_INOTIFY |
367 | #ifndef EV_USE_INOTIFY |
279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
368 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
369 | # define EV_USE_INOTIFY EV_FEATURE_OS |
281 | # else |
370 | # else |
282 | # define EV_USE_INOTIFY 0 |
371 | # define EV_USE_INOTIFY 0 |
… | |
… | |
305 | # else |
394 | # else |
306 | # define EV_USE_SIGNALFD 0 |
395 | # define EV_USE_SIGNALFD 0 |
307 | # endif |
396 | # endif |
308 | #endif |
397 | #endif |
309 | |
398 | |
|
|
399 | #ifndef EV_USE_TIMERFD |
|
|
400 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
|
|
401 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
402 | # else |
|
|
403 | # define EV_USE_TIMERFD 0 |
|
|
404 | # endif |
|
|
405 | #endif |
|
|
406 | |
310 | #if 0 /* debugging */ |
407 | #if 0 /* debugging */ |
311 | # define EV_VERIFY 3 |
408 | # define EV_VERIFY 3 |
312 | # define EV_USE_4HEAP 1 |
409 | # define EV_USE_4HEAP 1 |
313 | # define EV_HEAP_CACHE_AT 1 |
410 | # define EV_HEAP_CACHE_AT 1 |
314 | #endif |
411 | #endif |
… | |
… | |
323 | |
420 | |
324 | #ifndef EV_HEAP_CACHE_AT |
421 | #ifndef EV_HEAP_CACHE_AT |
325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
422 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
326 | #endif |
423 | #endif |
327 | |
424 | |
|
|
425 | #ifdef __ANDROID__ |
|
|
426 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
427 | # undef EV_USE_SELECT |
|
|
428 | # define EV_USE_SELECT 0 |
|
|
429 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
430 | # undef EV_USE_CLOCK_SYSCALL |
|
|
431 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
432 | #endif |
|
|
433 | |
|
|
434 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
435 | #ifdef _AIX |
|
|
436 | /* AIX has a completely broken poll.h header */ |
|
|
437 | # undef EV_USE_POLL |
|
|
438 | # define EV_USE_POLL 0 |
|
|
439 | #endif |
|
|
440 | |
328 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
441 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
329 | /* which makes programs even slower. might work on other unices, too. */ |
442 | /* which makes programs even slower. might work on other unices, too. */ |
330 | #if EV_USE_CLOCK_SYSCALL |
443 | #if EV_USE_CLOCK_SYSCALL |
331 | # include <syscall.h> |
444 | # include <sys/syscall.h> |
332 | # ifdef SYS_clock_gettime |
445 | # ifdef SYS_clock_gettime |
333 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
446 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
334 | # undef EV_USE_MONOTONIC |
447 | # undef EV_USE_MONOTONIC |
335 | # define EV_USE_MONOTONIC 1 |
448 | # define EV_USE_MONOTONIC 1 |
|
|
449 | # define EV_NEED_SYSCALL 1 |
336 | # else |
450 | # else |
337 | # undef EV_USE_CLOCK_SYSCALL |
451 | # undef EV_USE_CLOCK_SYSCALL |
338 | # define EV_USE_CLOCK_SYSCALL 0 |
452 | # define EV_USE_CLOCK_SYSCALL 0 |
339 | # endif |
453 | # endif |
340 | #endif |
454 | #endif |
341 | |
455 | |
342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
456 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
343 | |
457 | |
344 | #ifdef _AIX |
|
|
345 | /* AIX has a completely broken poll.h header */ |
|
|
346 | # undef EV_USE_POLL |
|
|
347 | # define EV_USE_POLL 0 |
|
|
348 | #endif |
|
|
349 | |
|
|
350 | #ifndef CLOCK_MONOTONIC |
458 | #ifndef CLOCK_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
459 | # undef EV_USE_MONOTONIC |
352 | # define EV_USE_MONOTONIC 0 |
460 | # define EV_USE_MONOTONIC 0 |
353 | #endif |
461 | #endif |
354 | |
462 | |
… | |
… | |
360 | #if !EV_STAT_ENABLE |
468 | #if !EV_STAT_ENABLE |
361 | # undef EV_USE_INOTIFY |
469 | # undef EV_USE_INOTIFY |
362 | # define EV_USE_INOTIFY 0 |
470 | # define EV_USE_INOTIFY 0 |
363 | #endif |
471 | #endif |
364 | |
472 | |
|
|
473 | #if __linux && EV_USE_IOURING |
|
|
474 | # include <linux/version.h> |
|
|
475 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
476 | # undef EV_USE_IOURING |
|
|
477 | # define EV_USE_IOURING 0 |
|
|
478 | # endif |
|
|
479 | #endif |
|
|
480 | |
365 | #if !EV_USE_NANOSLEEP |
481 | #if !EV_USE_NANOSLEEP |
366 | # ifndef _WIN32 |
482 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
483 | # if !defined _WIN32 && !defined __hpux |
367 | # include <sys/select.h> |
484 | # include <sys/select.h> |
368 | # endif |
485 | # endif |
369 | #endif |
486 | #endif |
370 | |
487 | |
|
|
488 | #if EV_USE_LINUXAIO |
|
|
489 | # include <sys/syscall.h> |
|
|
490 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
491 | # define EV_NEED_SYSCALL 1 |
|
|
492 | # else |
|
|
493 | # undef EV_USE_LINUXAIO |
|
|
494 | # define EV_USE_LINUXAIO 0 |
|
|
495 | # endif |
|
|
496 | #endif |
|
|
497 | |
|
|
498 | #if EV_USE_IOURING |
|
|
499 | # include <sys/syscall.h> |
|
|
500 | # if !SYS_io_uring_register && __linux && !__alpha |
|
|
501 | # define SYS_io_uring_setup 425 |
|
|
502 | # define SYS_io_uring_enter 426 |
|
|
503 | # define SYS_io_uring_register 427 |
|
|
504 | # endif |
|
|
505 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
506 | # define EV_NEED_SYSCALL 1 |
|
|
507 | # else |
|
|
508 | # undef EV_USE_IOURING |
|
|
509 | # define EV_USE_IOURING 0 |
|
|
510 | # endif |
|
|
511 | #endif |
|
|
512 | |
371 | #if EV_USE_INOTIFY |
513 | #if EV_USE_INOTIFY |
372 | # include <sys/utsname.h> |
|
|
373 | # include <sys/statfs.h> |
514 | # include <sys/statfs.h> |
374 | # include <sys/inotify.h> |
515 | # include <sys/inotify.h> |
375 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
516 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
376 | # ifndef IN_DONT_FOLLOW |
517 | # ifndef IN_DONT_FOLLOW |
377 | # undef EV_USE_INOTIFY |
518 | # undef EV_USE_INOTIFY |
378 | # define EV_USE_INOTIFY 0 |
519 | # define EV_USE_INOTIFY 0 |
379 | # endif |
520 | # endif |
380 | #endif |
521 | #endif |
381 | |
522 | |
382 | #if EV_SELECT_IS_WINSOCKET |
|
|
383 | # include <winsock.h> |
|
|
384 | #endif |
|
|
385 | |
|
|
386 | #if EV_USE_EVENTFD |
523 | #if EV_USE_EVENTFD |
387 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
524 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
388 | # include <stdint.h> |
525 | # include <stdint.h> |
389 | # ifndef EFD_NONBLOCK |
526 | # ifndef EFD_NONBLOCK |
390 | # define EFD_NONBLOCK O_NONBLOCK |
527 | # define EFD_NONBLOCK O_NONBLOCK |
391 | # endif |
528 | # endif |
392 | # ifndef EFD_CLOEXEC |
529 | # ifndef EFD_CLOEXEC |
… | |
… | |
394 | # define EFD_CLOEXEC O_CLOEXEC |
531 | # define EFD_CLOEXEC O_CLOEXEC |
395 | # else |
532 | # else |
396 | # define EFD_CLOEXEC 02000000 |
533 | # define EFD_CLOEXEC 02000000 |
397 | # endif |
534 | # endif |
398 | # endif |
535 | # endif |
399 | # ifdef __cplusplus |
|
|
400 | extern "C" { |
|
|
401 | # endif |
|
|
402 | int (eventfd) (unsigned int initval, int flags); |
536 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
403 | # ifdef __cplusplus |
|
|
404 | } |
|
|
405 | # endif |
|
|
406 | #endif |
537 | #endif |
407 | |
538 | |
408 | #if EV_USE_SIGNALFD |
539 | #if EV_USE_SIGNALFD |
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
540 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
410 | # include <stdint.h> |
541 | # include <stdint.h> |
411 | # ifndef SFD_NONBLOCK |
542 | # ifndef SFD_NONBLOCK |
412 | # define SFD_NONBLOCK O_NONBLOCK |
543 | # define SFD_NONBLOCK O_NONBLOCK |
413 | # endif |
544 | # endif |
414 | # ifndef SFD_CLOEXEC |
545 | # ifndef SFD_CLOEXEC |
… | |
… | |
416 | # define SFD_CLOEXEC O_CLOEXEC |
547 | # define SFD_CLOEXEC O_CLOEXEC |
417 | # else |
548 | # else |
418 | # define SFD_CLOEXEC 02000000 |
549 | # define SFD_CLOEXEC 02000000 |
419 | # endif |
550 | # endif |
420 | # endif |
551 | # endif |
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
552 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
425 | |
553 | |
426 | struct signalfd_siginfo |
554 | struct signalfd_siginfo |
427 | { |
555 | { |
428 | uint32_t ssi_signo; |
556 | uint32_t ssi_signo; |
429 | char pad[128 - sizeof (uint32_t)]; |
557 | char pad[128 - sizeof (uint32_t)]; |
430 | }; |
558 | }; |
431 | # ifdef __cplusplus |
559 | #endif |
432 | } |
560 | |
|
|
561 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
|
|
562 | #if EV_USE_TIMERFD |
|
|
563 | # include <sys/timerfd.h> |
|
|
564 | /* timerfd is only used for periodics */ |
|
|
565 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
|
|
566 | # undef EV_USE_TIMERFD |
|
|
567 | # define EV_USE_TIMERFD 0 |
433 | # endif |
568 | # endif |
434 | #endif |
569 | #endif |
435 | |
570 | |
436 | |
571 | /*****************************************************************************/ |
437 | /**/ |
|
|
438 | |
572 | |
439 | #if EV_VERIFY >= 3 |
573 | #if EV_VERIFY >= 3 |
440 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
574 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
441 | #else |
575 | #else |
442 | # define EV_FREQUENT_CHECK do { } while (0) |
576 | # define EV_FREQUENT_CHECK do { } while (0) |
443 | #endif |
577 | #endif |
444 | |
578 | |
445 | /* |
579 | /* |
446 | * This is used to avoid floating point rounding problems. |
580 | * This is used to work around floating point rounding problems. |
447 | * It is added to ev_rt_now when scheduling periodics |
|
|
448 | * to ensure progress, time-wise, even when rounding |
|
|
449 | * errors are against us. |
|
|
450 | * This value is good at least till the year 4000. |
581 | * This value is good at least till the year 4000. |
451 | * Better solutions welcome. |
|
|
452 | */ |
582 | */ |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
583 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
584 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
454 | |
585 | |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
586 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
587 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
|
|
588 | #define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */ |
457 | |
589 | |
|
|
590 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
591 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
592 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
593 | #define EV_TSTAMP_HUGE \ |
|
|
594 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
595 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
596 | : 2147483647.) \ |
|
|
597 | |
|
|
598 | #ifndef EV_TS_CONST |
|
|
599 | # define EV_TS_CONST(nv) nv |
|
|
600 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
601 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
|
|
602 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
603 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
604 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
605 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
606 | #endif |
|
|
607 | |
|
|
608 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
609 | /* ECB.H BEGIN */ |
|
|
610 | /* |
|
|
611 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
612 | * |
|
|
613 | * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
614 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
615 | * All rights reserved. |
|
|
616 | * |
|
|
617 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
618 | * tion, are permitted provided that the following conditions are met: |
|
|
619 | * |
|
|
620 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
621 | * this list of conditions and the following disclaimer. |
|
|
622 | * |
|
|
623 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
624 | * notice, this list of conditions and the following disclaimer in the |
|
|
625 | * documentation and/or other materials provided with the distribution. |
|
|
626 | * |
|
|
627 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
628 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
629 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
630 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
631 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
632 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
633 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
634 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
635 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
636 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
637 | * |
|
|
638 | * Alternatively, the contents of this file may be used under the terms of |
|
|
639 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
640 | * in which case the provisions of the GPL are applicable instead of |
|
|
641 | * the above. If you wish to allow the use of your version of this file |
|
|
642 | * only under the terms of the GPL and not to allow others to use your |
|
|
643 | * version of this file under the BSD license, indicate your decision |
|
|
644 | * by deleting the provisions above and replace them with the notice |
|
|
645 | * and other provisions required by the GPL. If you do not delete the |
|
|
646 | * provisions above, a recipient may use your version of this file under |
|
|
647 | * either the BSD or the GPL. |
|
|
648 | */ |
|
|
649 | |
|
|
650 | #ifndef ECB_H |
|
|
651 | #define ECB_H |
|
|
652 | |
|
|
653 | /* 16 bits major, 16 bits minor */ |
|
|
654 | #define ECB_VERSION 0x00010008 |
|
|
655 | |
|
|
656 | #include <string.h> /* for memcpy */ |
|
|
657 | |
|
|
658 | #if defined (_WIN32) && !defined (__MINGW32__) |
|
|
659 | typedef signed char int8_t; |
|
|
660 | typedef unsigned char uint8_t; |
|
|
661 | typedef signed char int_fast8_t; |
|
|
662 | typedef unsigned char uint_fast8_t; |
|
|
663 | typedef signed short int16_t; |
|
|
664 | typedef unsigned short uint16_t; |
|
|
665 | typedef signed int int_fast16_t; |
|
|
666 | typedef unsigned int uint_fast16_t; |
|
|
667 | typedef signed int int32_t; |
|
|
668 | typedef unsigned int uint32_t; |
|
|
669 | typedef signed int int_fast32_t; |
|
|
670 | typedef unsigned int uint_fast32_t; |
458 | #if __GNUC__ >= 4 |
671 | #if __GNUC__ |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
672 | typedef signed long long int64_t; |
460 | # define noinline __attribute__ ((noinline)) |
673 | typedef unsigned long long uint64_t; |
|
|
674 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
675 | typedef signed __int64 int64_t; |
|
|
676 | typedef unsigned __int64 uint64_t; |
|
|
677 | #endif |
|
|
678 | typedef int64_t int_fast64_t; |
|
|
679 | typedef uint64_t uint_fast64_t; |
|
|
680 | #ifdef _WIN64 |
|
|
681 | #define ECB_PTRSIZE 8 |
|
|
682 | typedef uint64_t uintptr_t; |
|
|
683 | typedef int64_t intptr_t; |
|
|
684 | #else |
|
|
685 | #define ECB_PTRSIZE 4 |
|
|
686 | typedef uint32_t uintptr_t; |
|
|
687 | typedef int32_t intptr_t; |
|
|
688 | #endif |
461 | #else |
689 | #else |
462 | # define expect(expr,value) (expr) |
690 | #include <inttypes.h> |
463 | # define noinline |
691 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
464 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
692 | #define ECB_PTRSIZE 8 |
465 | # define inline |
693 | #else |
|
|
694 | #define ECB_PTRSIZE 4 |
|
|
695 | #endif |
466 | # endif |
696 | #endif |
|
|
697 | |
|
|
698 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
699 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
700 | |
|
|
701 | #ifndef ECB_OPTIMIZE_SIZE |
|
|
702 | #if __OPTIMIZE_SIZE__ |
|
|
703 | #define ECB_OPTIMIZE_SIZE 1 |
|
|
704 | #else |
|
|
705 | #define ECB_OPTIMIZE_SIZE 0 |
467 | #endif |
706 | #endif |
|
|
707 | #endif |
468 | |
708 | |
|
|
709 | /* work around x32 idiocy by defining proper macros */ |
|
|
710 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
711 | #if _ILP32 |
|
|
712 | #define ECB_AMD64_X32 1 |
|
|
713 | #else |
|
|
714 | #define ECB_AMD64 1 |
|
|
715 | #endif |
|
|
716 | #endif |
|
|
717 | |
|
|
718 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
719 | * what their idiot authors think are the "more important" extensions, |
|
|
720 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
721 | * or so. |
|
|
722 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
723 | * an issue with that they should have done it right in the first place. |
|
|
724 | */ |
|
|
725 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
726 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
727 | #else |
|
|
728 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
729 | #endif |
|
|
730 | |
|
|
731 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
732 | |
|
|
733 | #if __clang__ && defined __has_builtin |
|
|
734 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
735 | #else |
|
|
736 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if __clang__ && defined __has_extension |
|
|
740 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
741 | #else |
|
|
742 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
743 | #endif |
|
|
744 | |
|
|
745 | #define ECB_CPP (__cplusplus+0) |
|
|
746 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
747 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
748 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
749 | |
|
|
750 | #if ECB_CPP |
|
|
751 | #define ECB_C 0 |
|
|
752 | #define ECB_STDC_VERSION 0 |
|
|
753 | #else |
|
|
754 | #define ECB_C 1 |
|
|
755 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
756 | #endif |
|
|
757 | |
|
|
758 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
759 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
760 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
761 | |
|
|
762 | #if ECB_CPP |
|
|
763 | #define ECB_EXTERN_C extern "C" |
|
|
764 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
765 | #define ECB_EXTERN_C_END } |
|
|
766 | #else |
|
|
767 | #define ECB_EXTERN_C extern |
|
|
768 | #define ECB_EXTERN_C_BEG |
|
|
769 | #define ECB_EXTERN_C_END |
|
|
770 | #endif |
|
|
771 | |
|
|
772 | /*****************************************************************************/ |
|
|
773 | |
|
|
774 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
775 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
776 | |
|
|
777 | #if ECB_NO_THREADS |
|
|
778 | #define ECB_NO_SMP 1 |
|
|
779 | #endif |
|
|
780 | |
|
|
781 | #if ECB_NO_SMP |
|
|
782 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
783 | #endif |
|
|
784 | |
|
|
785 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
786 | #if __xlC__ && ECB_CPP |
|
|
787 | #include <builtins.h> |
|
|
788 | #endif |
|
|
789 | |
|
|
790 | #if 1400 <= _MSC_VER |
|
|
791 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
792 | #endif |
|
|
793 | |
|
|
794 | #ifndef ECB_MEMORY_FENCE |
|
|
795 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
796 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
797 | #if __i386 || __i386__ |
|
|
798 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
799 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
800 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
801 | #elif ECB_GCC_AMD64 |
|
|
802 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
803 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
804 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
805 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
806 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
807 | #elif defined __ARM_ARCH_2__ \ |
|
|
808 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
809 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
810 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
811 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
812 | || defined __ARM_ARCH_5TEJ__ |
|
|
813 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
814 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
815 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
816 | || defined __ARM_ARCH_6T2__ |
|
|
817 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
818 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
819 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
821 | #elif __aarch64__ |
|
|
822 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
823 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
824 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
825 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
826 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
827 | #elif defined __s390__ || defined __s390x__ |
|
|
828 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
829 | #elif defined __mips__ |
|
|
830 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
831 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
832 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
833 | #elif defined __alpha__ |
|
|
834 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
835 | #elif defined __hppa__ |
|
|
836 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
837 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
838 | #elif defined __ia64__ |
|
|
839 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
840 | #elif defined __m68k__ |
|
|
841 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
842 | #elif defined __m88k__ |
|
|
843 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
844 | #elif defined __sh__ |
|
|
845 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
846 | #endif |
|
|
847 | #endif |
|
|
848 | #endif |
|
|
849 | |
|
|
850 | #ifndef ECB_MEMORY_FENCE |
|
|
851 | #if ECB_GCC_VERSION(4,7) |
|
|
852 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
853 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
854 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
855 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
856 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
857 | |
|
|
858 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
859 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
860 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
861 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
862 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
864 | |
|
|
865 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
866 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
867 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
868 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
869 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
870 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
871 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
872 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
873 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
874 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
875 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
876 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
877 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
878 | #elif defined _WIN32 |
|
|
879 | #include <WinNT.h> |
|
|
880 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
881 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
882 | #include <mbarrier.h> |
|
|
883 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
884 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
885 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
886 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
887 | #elif __xlC__ |
|
|
888 | #define ECB_MEMORY_FENCE __sync () |
|
|
889 | #endif |
|
|
890 | #endif |
|
|
891 | |
|
|
892 | #ifndef ECB_MEMORY_FENCE |
|
|
893 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
894 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
895 | /* not just C11 atomics and atomic accesses */ |
|
|
896 | #include <stdatomic.h> |
|
|
897 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
898 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
899 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
900 | #endif |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | #ifndef ECB_MEMORY_FENCE |
|
|
904 | #if !ECB_AVOID_PTHREADS |
|
|
905 | /* |
|
|
906 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
907 | * or failure to find pthread.h, then you should implement |
|
|
908 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
909 | * OR provide pthread.h and link against the posix thread library |
|
|
910 | * of your system. |
|
|
911 | */ |
|
|
912 | #include <pthread.h> |
|
|
913 | #define ECB_NEEDS_PTHREADS 1 |
|
|
914 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
915 | |
|
|
916 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
917 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
918 | #endif |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
922 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
923 | #endif |
|
|
924 | |
|
|
925 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
926 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
930 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
931 | #endif |
|
|
932 | |
|
|
933 | /*****************************************************************************/ |
|
|
934 | |
|
|
935 | #if ECB_CPP |
|
|
936 | #define ecb_inline static inline |
|
|
937 | #elif ECB_GCC_VERSION(2,5) |
|
|
938 | #define ecb_inline static __inline__ |
|
|
939 | #elif ECB_C99 |
|
|
940 | #define ecb_inline static inline |
|
|
941 | #else |
|
|
942 | #define ecb_inline static |
|
|
943 | #endif |
|
|
944 | |
|
|
945 | #if ECB_GCC_VERSION(3,3) |
|
|
946 | #define ecb_restrict __restrict__ |
|
|
947 | #elif ECB_C99 |
|
|
948 | #define ecb_restrict restrict |
|
|
949 | #else |
|
|
950 | #define ecb_restrict |
|
|
951 | #endif |
|
|
952 | |
|
|
953 | typedef int ecb_bool; |
|
|
954 | |
|
|
955 | #define ECB_CONCAT_(a, b) a ## b |
|
|
956 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
957 | #define ECB_STRINGIFY_(a) # a |
|
|
958 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
959 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
960 | |
|
|
961 | #define ecb_function_ ecb_inline |
|
|
962 | |
|
|
963 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
964 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
965 | #else |
|
|
966 | #define ecb_attribute(attrlist) |
|
|
967 | #endif |
|
|
968 | |
|
|
969 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
970 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
971 | #else |
|
|
972 | /* possible C11 impl for integral types |
|
|
973 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
974 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
975 | |
|
|
976 | #define ecb_is_constant(expr) 0 |
|
|
977 | #endif |
|
|
978 | |
|
|
979 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
980 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
981 | #else |
|
|
982 | #define ecb_expect(expr,value) (expr) |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
986 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
987 | #else |
|
|
988 | #define ecb_prefetch(addr,rw,locality) |
|
|
989 | #endif |
|
|
990 | |
|
|
991 | /* no emulation for ecb_decltype */ |
|
|
992 | #if ECB_CPP11 |
|
|
993 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
994 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
995 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
996 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
997 | #define ecb_decltype(x) __typeof__ (x) |
|
|
998 | #endif |
|
|
999 | |
|
|
1000 | #if _MSC_VER >= 1300 |
|
|
1001 | #define ecb_deprecated __declspec (deprecated) |
|
|
1002 | #else |
|
|
1003 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
1004 | #endif |
|
|
1005 | |
|
|
1006 | #if _MSC_VER >= 1500 |
|
|
1007 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
1008 | #elif ECB_GCC_VERSION(4,5) |
|
|
1009 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
1010 | #else |
|
|
1011 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
1012 | #endif |
|
|
1013 | |
|
|
1014 | #if _MSC_VER >= 1400 |
|
|
1015 | #define ecb_noinline __declspec (noinline) |
|
|
1016 | #else |
|
|
1017 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
1018 | #endif |
|
|
1019 | |
|
|
1020 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
1021 | #define ecb_const ecb_attribute ((__const__)) |
|
|
1022 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
1023 | |
|
|
1024 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1025 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
1026 | #define ecb_noreturn _Noreturn |
|
|
1027 | #elif ECB_CPP11 |
|
|
1028 | #define ecb_noreturn [[noreturn]] |
|
|
1029 | #elif _MSC_VER >= 1200 |
|
|
1030 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1031 | #define ecb_noreturn __declspec (noreturn) |
|
|
1032 | #else |
|
|
1033 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
1034 | #endif |
|
|
1035 | |
|
|
1036 | #if ECB_GCC_VERSION(4,3) |
|
|
1037 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
1038 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
1039 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
1040 | #else |
|
|
1041 | #define ecb_artificial |
|
|
1042 | #define ecb_hot |
|
|
1043 | #define ecb_cold |
|
|
1044 | #endif |
|
|
1045 | |
|
|
1046 | /* put around conditional expressions if you are very sure that the */ |
|
|
1047 | /* expression is mostly true or mostly false. note that these return */ |
|
|
1048 | /* booleans, not the expression. */ |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
1049 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
1050 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1051 | /* for compatibility to the rest of the world */ |
|
|
1052 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1053 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1054 | |
|
|
1055 | /* count trailing zero bits and count # of one bits */ |
|
|
1056 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1057 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1058 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1059 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1060 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1061 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1062 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1063 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1064 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1065 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1066 | /* no popcountll */ |
|
|
1067 | #else |
|
|
1068 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1069 | ecb_function_ ecb_const int |
|
|
1070 | ecb_ctz32 (uint32_t x) |
|
|
1071 | { |
|
|
1072 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1073 | unsigned long r; |
|
|
1074 | _BitScanForward (&r, x); |
|
|
1075 | return (int)r; |
|
|
1076 | #else |
|
|
1077 | int r = 0; |
|
|
1078 | |
|
|
1079 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1080 | |
|
|
1081 | #if ECB_branchless_on_i386 |
|
|
1082 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1083 | r += !!(x & 0xcccccccc) << 1; |
|
|
1084 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1085 | r += !!(x & 0xff00ff00) << 3; |
|
|
1086 | r += !!(x & 0xffff0000) << 4; |
|
|
1087 | #else |
|
|
1088 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1089 | if (x & 0xcccccccc) r += 2; |
|
|
1090 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1091 | if (x & 0xff00ff00) r += 8; |
|
|
1092 | if (x & 0xffff0000) r += 16; |
|
|
1093 | #endif |
|
|
1094 | |
|
|
1095 | return r; |
|
|
1096 | #endif |
|
|
1097 | } |
|
|
1098 | |
|
|
1099 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1100 | ecb_function_ ecb_const int |
|
|
1101 | ecb_ctz64 (uint64_t x) |
|
|
1102 | { |
|
|
1103 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1104 | unsigned long r; |
|
|
1105 | _BitScanForward64 (&r, x); |
|
|
1106 | return (int)r; |
|
|
1107 | #else |
|
|
1108 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1109 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1110 | #endif |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1114 | ecb_function_ ecb_const int |
|
|
1115 | ecb_popcount32 (uint32_t x) |
|
|
1116 | { |
|
|
1117 | x -= (x >> 1) & 0x55555555; |
|
|
1118 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1119 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1120 | x *= 0x01010101; |
|
|
1121 | |
|
|
1122 | return x >> 24; |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1126 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1127 | { |
|
|
1128 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1129 | unsigned long r; |
|
|
1130 | _BitScanReverse (&r, x); |
|
|
1131 | return (int)r; |
|
|
1132 | #else |
|
|
1133 | int r = 0; |
|
|
1134 | |
|
|
1135 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1136 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1137 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1138 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1139 | if (x >> 1) { r += 1; } |
|
|
1140 | |
|
|
1141 | return r; |
|
|
1142 | #endif |
|
|
1143 | } |
|
|
1144 | |
|
|
1145 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1146 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1147 | { |
|
|
1148 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1149 | unsigned long r; |
|
|
1150 | _BitScanReverse64 (&r, x); |
|
|
1151 | return (int)r; |
|
|
1152 | #else |
|
|
1153 | int r = 0; |
|
|
1154 | |
|
|
1155 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1156 | |
|
|
1157 | return r + ecb_ld32 (x); |
|
|
1158 | #endif |
|
|
1159 | } |
|
|
1160 | #endif |
|
|
1161 | |
|
|
1162 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1163 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1164 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1165 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1166 | |
|
|
1167 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1168 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1169 | { |
|
|
1170 | return ( (x * 0x0802U & 0x22110U) |
|
|
1171 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1175 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1176 | { |
|
|
1177 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1178 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1179 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1180 | x = ( x >> 8 ) | ( x << 8); |
|
|
1181 | |
|
|
1182 | return x; |
|
|
1183 | } |
|
|
1184 | |
|
|
1185 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1186 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1187 | { |
|
|
1188 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1189 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1190 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1191 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1192 | x = ( x >> 16 ) | ( x << 16); |
|
|
1193 | |
|
|
1194 | return x; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1198 | /* so for this version we are lazy */ |
|
|
1199 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1200 | ecb_function_ ecb_const int |
|
|
1201 | ecb_popcount64 (uint64_t x) |
|
|
1202 | { |
|
|
1203 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1204 | } |
|
|
1205 | |
|
|
1206 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1207 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1208 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1209 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1210 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1211 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1212 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1213 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1214 | |
|
|
1215 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1216 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1217 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1218 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1219 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1220 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1221 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1222 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1223 | |
|
|
1224 | #if ECB_CPP |
|
|
1225 | |
|
|
1226 | inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); } |
|
|
1227 | inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); } |
|
|
1228 | inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); } |
|
|
1229 | inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); } |
|
|
1230 | |
|
|
1231 | inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); } |
|
|
1232 | inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); } |
|
|
1233 | inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); } |
|
|
1234 | inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); } |
|
|
1235 | |
|
|
1236 | inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); } |
|
|
1237 | inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); } |
|
|
1238 | inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); } |
|
|
1239 | inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); } |
|
|
1240 | |
|
|
1241 | inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); } |
|
|
1242 | inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); } |
|
|
1243 | inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); } |
|
|
1244 | inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); } |
|
|
1245 | |
|
|
1246 | inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); } |
|
|
1247 | inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); } |
|
|
1248 | inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); } |
|
|
1249 | |
|
|
1250 | inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); } |
|
|
1251 | inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); } |
|
|
1252 | inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); } |
|
|
1253 | inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); } |
|
|
1254 | |
|
|
1255 | inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); } |
|
|
1256 | inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); } |
|
|
1257 | inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); } |
|
|
1258 | inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); } |
|
|
1259 | |
|
|
1260 | #endif |
|
|
1261 | |
|
|
1262 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1263 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1264 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1265 | #else |
|
|
1266 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1267 | #endif |
|
|
1268 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1269 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1270 | #elif _MSC_VER |
|
|
1271 | #include <stdlib.h> |
|
|
1272 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1273 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1274 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1275 | #else |
|
|
1276 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1277 | ecb_function_ ecb_const uint16_t |
|
|
1278 | ecb_bswap16 (uint16_t x) |
|
|
1279 | { |
|
|
1280 | return ecb_rotl16 (x, 8); |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1284 | ecb_function_ ecb_const uint32_t |
|
|
1285 | ecb_bswap32 (uint32_t x) |
|
|
1286 | { |
|
|
1287 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1288 | } |
|
|
1289 | |
|
|
1290 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1291 | ecb_function_ ecb_const uint64_t |
|
|
1292 | ecb_bswap64 (uint64_t x) |
|
|
1293 | { |
|
|
1294 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1295 | } |
|
|
1296 | #endif |
|
|
1297 | |
|
|
1298 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1299 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1300 | #else |
|
|
1301 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1302 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1303 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1304 | #endif |
|
|
1305 | |
|
|
1306 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1307 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1308 | |
|
|
1309 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1310 | ecb_inline ecb_const uint32_t |
|
|
1311 | ecb_byteorder_helper (void) |
|
|
1312 | { |
|
|
1313 | /* the union code still generates code under pressure in gcc, */ |
|
|
1314 | /* but less than using pointers, and always seems to */ |
|
|
1315 | /* successfully return a constant. */ |
|
|
1316 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1317 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1318 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1319 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1320 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1321 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1322 | return 0x44332211; |
|
|
1323 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1324 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1325 | #define ECB_BIG_ENDIAN 1 |
|
|
1326 | return 0x11223344; |
|
|
1327 | #else |
|
|
1328 | union |
|
|
1329 | { |
|
|
1330 | uint8_t c[4]; |
|
|
1331 | uint32_t u; |
|
|
1332 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1333 | return u.u; |
|
|
1334 | #endif |
|
|
1335 | } |
|
|
1336 | |
|
|
1337 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1338 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1339 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1340 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1341 | |
|
|
1342 | /*****************************************************************************/ |
|
|
1343 | /* unaligned load/store */ |
|
|
1344 | |
|
|
1345 | ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1346 | ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1347 | ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1348 | |
|
|
1349 | ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1350 | ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1351 | ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1352 | |
|
|
1353 | ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1354 | ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1355 | ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1356 | |
|
|
1357 | ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1358 | ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1359 | ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1360 | |
|
|
1361 | ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1362 | ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1363 | ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1364 | |
|
|
1365 | ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1366 | ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1367 | ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1368 | |
|
|
1369 | ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1370 | ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1371 | ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1372 | |
|
|
1373 | ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1374 | ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1375 | ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1376 | |
|
|
1377 | ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); } |
|
|
1378 | ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); } |
|
|
1379 | ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); } |
|
|
1380 | |
|
|
1381 | ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); } |
|
|
1382 | ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); } |
|
|
1383 | ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); } |
|
|
1384 | |
|
|
1385 | #if ECB_CPP |
|
|
1386 | |
|
|
1387 | inline uint8_t ecb_bswap (uint8_t v) { return v; } |
|
|
1388 | inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); } |
|
|
1389 | inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); } |
|
|
1390 | inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); } |
|
|
1391 | |
|
|
1392 | template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1393 | template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1394 | template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; } |
|
|
1395 | template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); } |
|
|
1396 | template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); } |
|
|
1397 | template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1398 | template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1399 | template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1400 | |
|
|
1401 | template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1402 | template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1403 | template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; } |
|
|
1404 | template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); } |
|
|
1405 | template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); } |
|
|
1406 | template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1407 | template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); } |
|
|
1408 | template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); } |
|
|
1409 | |
|
|
1410 | #endif |
|
|
1411 | |
|
|
1412 | /*****************************************************************************/ |
|
|
1413 | |
|
|
1414 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1415 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1416 | #else |
|
|
1417 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #if ECB_CPP |
|
|
1421 | template<typename T> |
|
|
1422 | static inline T ecb_div_rd (T val, T div) |
|
|
1423 | { |
|
|
1424 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1425 | } |
|
|
1426 | template<typename T> |
|
|
1427 | static inline T ecb_div_ru (T val, T div) |
|
|
1428 | { |
|
|
1429 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1430 | } |
|
|
1431 | #else |
|
|
1432 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1433 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1434 | #endif |
|
|
1435 | |
|
|
1436 | #if ecb_cplusplus_does_not_suck |
|
|
1437 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1438 | template<typename T, int N> |
|
|
1439 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1440 | { |
|
|
1441 | return N; |
|
|
1442 | } |
|
|
1443 | #else |
|
|
1444 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1445 | #endif |
|
|
1446 | |
|
|
1447 | /*****************************************************************************/ |
|
|
1448 | |
|
|
1449 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1450 | ecb_function_ ecb_const uint32_t |
|
|
1451 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1452 | { |
|
|
1453 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1454 | int e = (x >> 10) & 0x001f; |
|
|
1455 | unsigned int m = x & 0x03ff; |
|
|
1456 | |
|
|
1457 | if (ecb_expect_false (e == 31)) |
|
|
1458 | /* infinity or NaN */ |
|
|
1459 | e = 255 - (127 - 15); |
|
|
1460 | else if (ecb_expect_false (!e)) |
|
|
1461 | { |
|
|
1462 | if (ecb_expect_true (!m)) |
|
|
1463 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1464 | e = 0 - (127 - 15); |
|
|
1465 | else |
|
|
1466 | { |
|
|
1467 | /* subnormal, renormalise */ |
|
|
1468 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1469 | |
|
|
1470 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1471 | e -= s - 1; |
|
|
1472 | } |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1476 | e += 127 - 15; |
|
|
1477 | |
|
|
1478 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1482 | ecb_function_ ecb_const uint16_t |
|
|
1483 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1484 | { |
|
|
1485 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1486 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1487 | unsigned int m = x & 0x007fffff; |
|
|
1488 | |
|
|
1489 | x &= 0x7fffffff; |
|
|
1490 | |
|
|
1491 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1492 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1493 | { |
|
|
1494 | /* mantissa round-to-even */ |
|
|
1495 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1496 | |
|
|
1497 | /* handle overflow */ |
|
|
1498 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1499 | { |
|
|
1500 | m >>= 1; |
|
|
1501 | e += 1; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1505 | } |
|
|
1506 | |
|
|
1507 | /* handle large numbers and infinity */ |
|
|
1508 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1509 | return s | 0x7c00; |
|
|
1510 | |
|
|
1511 | /* handle zero, subnormals and small numbers */ |
|
|
1512 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1513 | { |
|
|
1514 | /* zero */ |
|
|
1515 | if (ecb_expect_true (!x)) |
|
|
1516 | return s; |
|
|
1517 | |
|
|
1518 | /* handle subnormals */ |
|
|
1519 | |
|
|
1520 | /* too small, will be zero */ |
|
|
1521 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1522 | return s; |
|
|
1523 | |
|
|
1524 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1525 | |
|
|
1526 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1527 | { |
|
|
1528 | unsigned int bits = 14 - e; |
|
|
1529 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1530 | unsigned int even = (m >> bits) & 1; |
|
|
1531 | |
|
|
1532 | /* if this overflows, we will end up with a normalised number */ |
|
|
1533 | m = (m + half + even) >> bits; |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | return s | m; |
|
|
1537 | } |
|
|
1538 | |
|
|
1539 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1540 | m >>= 13; |
|
|
1541 | |
|
|
1542 | return s | 0x7c00 | m | !m; |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | /*******************************************************************************/ |
|
|
1546 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1547 | |
|
|
1548 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1549 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1550 | #if 0 \ |
|
|
1551 | || __i386 || __i386__ \ |
|
|
1552 | || ECB_GCC_AMD64 \ |
|
|
1553 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1554 | || defined __s390__ || defined __s390x__ \ |
|
|
1555 | || defined __mips__ \ |
|
|
1556 | || defined __alpha__ \ |
|
|
1557 | || defined __hppa__ \ |
|
|
1558 | || defined __ia64__ \ |
|
|
1559 | || defined __m68k__ \ |
|
|
1560 | || defined __m88k__ \ |
|
|
1561 | || defined __sh__ \ |
|
|
1562 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1563 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1564 | || defined __aarch64__ |
|
|
1565 | #define ECB_STDFP 1 |
|
|
1566 | #else |
|
|
1567 | #define ECB_STDFP 0 |
|
|
1568 | #endif |
|
|
1569 | |
|
|
1570 | #ifndef ECB_NO_LIBM |
|
|
1571 | |
|
|
1572 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1573 | |
|
|
1574 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1575 | #ifdef INFINITY |
|
|
1576 | #define ECB_INFINITY INFINITY |
|
|
1577 | #else |
|
|
1578 | #define ECB_INFINITY HUGE_VAL |
|
|
1579 | #endif |
|
|
1580 | |
|
|
1581 | #ifdef NAN |
|
|
1582 | #define ECB_NAN NAN |
|
|
1583 | #else |
|
|
1584 | #define ECB_NAN ECB_INFINITY |
|
|
1585 | #endif |
|
|
1586 | |
|
|
1587 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1588 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1589 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1590 | #else |
|
|
1591 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1592 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1593 | #endif |
|
|
1594 | |
|
|
1595 | /* convert a float to ieee single/binary32 */ |
|
|
1596 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1597 | ecb_function_ ecb_const uint32_t |
|
|
1598 | ecb_float_to_binary32 (float x) |
|
|
1599 | { |
|
|
1600 | uint32_t r; |
|
|
1601 | |
|
|
1602 | #if ECB_STDFP |
|
|
1603 | memcpy (&r, &x, 4); |
|
|
1604 | #else |
|
|
1605 | /* slow emulation, works for anything but -0 */ |
|
|
1606 | uint32_t m; |
|
|
1607 | int e; |
|
|
1608 | |
|
|
1609 | if (x == 0e0f ) return 0x00000000U; |
|
|
1610 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1611 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1612 | if (x != x ) return 0x7fbfffffU; |
|
|
1613 | |
|
|
1614 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1615 | |
|
|
1616 | r = m & 0x80000000U; |
|
|
1617 | |
|
|
1618 | if (r) |
|
|
1619 | m = -m; |
|
|
1620 | |
|
|
1621 | if (e <= -126) |
|
|
1622 | { |
|
|
1623 | m &= 0xffffffU; |
|
|
1624 | m >>= (-125 - e); |
|
|
1625 | e = -126; |
|
|
1626 | } |
|
|
1627 | |
|
|
1628 | r |= (e + 126) << 23; |
|
|
1629 | r |= m & 0x7fffffU; |
|
|
1630 | #endif |
|
|
1631 | |
|
|
1632 | return r; |
|
|
1633 | } |
|
|
1634 | |
|
|
1635 | /* converts an ieee single/binary32 to a float */ |
|
|
1636 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1637 | ecb_function_ ecb_const float |
|
|
1638 | ecb_binary32_to_float (uint32_t x) |
|
|
1639 | { |
|
|
1640 | float r; |
|
|
1641 | |
|
|
1642 | #if ECB_STDFP |
|
|
1643 | memcpy (&r, &x, 4); |
|
|
1644 | #else |
|
|
1645 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1646 | int neg = x >> 31; |
|
|
1647 | int e = (x >> 23) & 0xffU; |
|
|
1648 | |
|
|
1649 | x &= 0x7fffffU; |
|
|
1650 | |
|
|
1651 | if (e) |
|
|
1652 | x |= 0x800000U; |
|
|
1653 | else |
|
|
1654 | e = 1; |
|
|
1655 | |
|
|
1656 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1657 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1658 | |
|
|
1659 | r = neg ? -r : r; |
|
|
1660 | #endif |
|
|
1661 | |
|
|
1662 | return r; |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | /* convert a double to ieee double/binary64 */ |
|
|
1666 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1667 | ecb_function_ ecb_const uint64_t |
|
|
1668 | ecb_double_to_binary64 (double x) |
|
|
1669 | { |
|
|
1670 | uint64_t r; |
|
|
1671 | |
|
|
1672 | #if ECB_STDFP |
|
|
1673 | memcpy (&r, &x, 8); |
|
|
1674 | #else |
|
|
1675 | /* slow emulation, works for anything but -0 */ |
|
|
1676 | uint64_t m; |
|
|
1677 | int e; |
|
|
1678 | |
|
|
1679 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1680 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1681 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1682 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1683 | |
|
|
1684 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1685 | |
|
|
1686 | r = m & 0x8000000000000000;; |
|
|
1687 | |
|
|
1688 | if (r) |
|
|
1689 | m = -m; |
|
|
1690 | |
|
|
1691 | if (e <= -1022) |
|
|
1692 | { |
|
|
1693 | m &= 0x1fffffffffffffU; |
|
|
1694 | m >>= (-1021 - e); |
|
|
1695 | e = -1022; |
|
|
1696 | } |
|
|
1697 | |
|
|
1698 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1699 | r |= m & 0xfffffffffffffU; |
|
|
1700 | #endif |
|
|
1701 | |
|
|
1702 | return r; |
|
|
1703 | } |
|
|
1704 | |
|
|
1705 | /* converts an ieee double/binary64 to a double */ |
|
|
1706 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1707 | ecb_function_ ecb_const double |
|
|
1708 | ecb_binary64_to_double (uint64_t x) |
|
|
1709 | { |
|
|
1710 | double r; |
|
|
1711 | |
|
|
1712 | #if ECB_STDFP |
|
|
1713 | memcpy (&r, &x, 8); |
|
|
1714 | #else |
|
|
1715 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1716 | int neg = x >> 63; |
|
|
1717 | int e = (x >> 52) & 0x7ffU; |
|
|
1718 | |
|
|
1719 | x &= 0xfffffffffffffU; |
|
|
1720 | |
|
|
1721 | if (e) |
|
|
1722 | x |= 0x10000000000000U; |
|
|
1723 | else |
|
|
1724 | e = 1; |
|
|
1725 | |
|
|
1726 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1727 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1728 | |
|
|
1729 | r = neg ? -r : r; |
|
|
1730 | #endif |
|
|
1731 | |
|
|
1732 | return r; |
|
|
1733 | } |
|
|
1734 | |
|
|
1735 | /* convert a float to ieee half/binary16 */ |
|
|
1736 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1737 | ecb_function_ ecb_const uint16_t |
|
|
1738 | ecb_float_to_binary16 (float x) |
|
|
1739 | { |
|
|
1740 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1741 | } |
|
|
1742 | |
|
|
1743 | /* convert an ieee half/binary16 to float */ |
|
|
1744 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1745 | ecb_function_ ecb_const float |
|
|
1746 | ecb_binary16_to_float (uint16_t x) |
|
|
1747 | { |
|
|
1748 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1749 | } |
|
|
1750 | |
|
|
1751 | #endif |
|
|
1752 | |
|
|
1753 | #endif |
|
|
1754 | |
|
|
1755 | /* ECB.H END */ |
|
|
1756 | |
|
|
1757 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1758 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1759 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1760 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1761 | * libev, in which cases the memory fences become nops. |
|
|
1762 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1763 | * which will then provide the memory fences. |
|
|
1764 | */ |
|
|
1765 | # error "memory fences not defined for your architecture, please report" |
|
|
1766 | #endif |
|
|
1767 | |
|
|
1768 | #ifndef ECB_MEMORY_FENCE |
|
|
1769 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1770 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1771 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1772 | #endif |
|
|
1773 | |
471 | #define inline_size static inline |
1774 | #define inline_size ecb_inline |
472 | |
1775 | |
473 | #if EV_FEATURE_CODE |
1776 | #if EV_FEATURE_CODE |
474 | # define inline_speed static inline |
1777 | # define inline_speed ecb_inline |
475 | #else |
1778 | #else |
476 | # define inline_speed static noinline |
1779 | # define inline_speed ecb_noinline static |
477 | #endif |
1780 | #endif |
|
|
1781 | |
|
|
1782 | /*****************************************************************************/ |
|
|
1783 | /* raw syscall wrappers */ |
|
|
1784 | |
|
|
1785 | #if EV_NEED_SYSCALL |
|
|
1786 | |
|
|
1787 | #include <sys/syscall.h> |
|
|
1788 | |
|
|
1789 | /* |
|
|
1790 | * define some syscall wrappers for common architectures |
|
|
1791 | * this is mostly for nice looks during debugging, not performance. |
|
|
1792 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1793 | * enough for linux aio. |
|
|
1794 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1795 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1796 | */ |
|
|
1797 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1798 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1799 | |
|
|
1800 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1801 | ({ \ |
|
|
1802 | long res; \ |
|
|
1803 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1804 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1805 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1806 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1807 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1808 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1809 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1810 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1811 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1812 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1813 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1814 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1815 | __asm__ __volatile__ ( \ |
|
|
1816 | "syscall\n\t" \ |
|
|
1817 | : "=a" (res) \ |
|
|
1818 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1819 | : "cc", "r11", "cx", "memory"); \ |
|
|
1820 | errno = -res; \ |
|
|
1821 | res; \ |
|
|
1822 | }) |
|
|
1823 | |
|
|
1824 | #endif |
|
|
1825 | |
|
|
1826 | #ifdef ev_syscall |
|
|
1827 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1828 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1829 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1830 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1831 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1832 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1833 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1834 | #else |
|
|
1835 | #define ev_syscall0(nr) syscall (nr) |
|
|
1836 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1837 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1838 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1839 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1840 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1841 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1842 | #endif |
|
|
1843 | |
|
|
1844 | #endif |
|
|
1845 | |
|
|
1846 | /*****************************************************************************/ |
478 | |
1847 | |
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1848 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
480 | |
1849 | |
481 | #if EV_MINPRI == EV_MAXPRI |
1850 | #if EV_MINPRI == EV_MAXPRI |
482 | # define ABSPRI(w) (((W)w), 0) |
1851 | # define ABSPRI(w) (((W)w), 0) |
483 | #else |
1852 | #else |
484 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1853 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
485 | #endif |
1854 | #endif |
486 | |
1855 | |
487 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1856 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
488 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
489 | |
1857 | |
490 | typedef ev_watcher *W; |
1858 | typedef ev_watcher *W; |
491 | typedef ev_watcher_list *WL; |
1859 | typedef ev_watcher_list *WL; |
492 | typedef ev_watcher_time *WT; |
1860 | typedef ev_watcher_time *WT; |
493 | |
1861 | |
494 | #define ev_active(w) ((W)(w))->active |
1862 | #define ev_active(w) ((W)(w))->active |
495 | #define ev_at(w) ((WT)(w))->at |
1863 | #define ev_at(w) ((WT)(w))->at |
496 | |
1864 | |
497 | #if EV_USE_REALTIME |
1865 | #if EV_USE_REALTIME |
498 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1866 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
499 | /* giving it a reasonably high chance of working on typical architetcures */ |
1867 | /* giving it a reasonably high chance of working on typical architectures */ |
500 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1868 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
501 | #endif |
1869 | #endif |
502 | |
1870 | |
503 | #if EV_USE_MONOTONIC |
1871 | #if EV_USE_MONOTONIC |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1872 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
518 | # include "ev_win32.c" |
1886 | # include "ev_win32.c" |
519 | #endif |
1887 | #endif |
520 | |
1888 | |
521 | /*****************************************************************************/ |
1889 | /*****************************************************************************/ |
522 | |
1890 | |
|
|
1891 | #if EV_USE_LINUXAIO |
|
|
1892 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1893 | #endif |
|
|
1894 | |
|
|
1895 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1896 | |
|
|
1897 | #if EV_USE_FLOOR |
|
|
1898 | # include <math.h> |
|
|
1899 | # define ev_floor(v) floor (v) |
|
|
1900 | #else |
|
|
1901 | |
|
|
1902 | #include <float.h> |
|
|
1903 | |
|
|
1904 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1905 | ecb_noinline |
|
|
1906 | static ev_tstamp |
|
|
1907 | ev_floor (ev_tstamp v) |
|
|
1908 | { |
|
|
1909 | /* the choice of shift factor is not terribly important */ |
|
|
1910 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1911 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1912 | #else |
|
|
1913 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1914 | #endif |
|
|
1915 | |
|
|
1916 | /* special treatment for negative arguments */ |
|
|
1917 | if (ecb_expect_false (v < 0.)) |
|
|
1918 | { |
|
|
1919 | ev_tstamp f = -ev_floor (-v); |
|
|
1920 | |
|
|
1921 | return f - (f == v ? 0 : 1); |
|
|
1922 | } |
|
|
1923 | |
|
|
1924 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1925 | if (ecb_expect_false (v >= shift)) |
|
|
1926 | { |
|
|
1927 | ev_tstamp f; |
|
|
1928 | |
|
|
1929 | if (v == v - 1.) |
|
|
1930 | return v; /* very large numbers are assumed to be integer */ |
|
|
1931 | |
|
|
1932 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1933 | return f + ev_floor (v - f); |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | /* fits into an unsigned long */ |
|
|
1937 | return (unsigned long)v; |
|
|
1938 | } |
|
|
1939 | |
|
|
1940 | #endif |
|
|
1941 | |
|
|
1942 | /*****************************************************************************/ |
|
|
1943 | |
|
|
1944 | #ifdef __linux |
|
|
1945 | # include <sys/utsname.h> |
|
|
1946 | #endif |
|
|
1947 | |
|
|
1948 | ecb_noinline ecb_cold |
|
|
1949 | static unsigned int |
|
|
1950 | ev_linux_version (void) |
|
|
1951 | { |
|
|
1952 | #ifdef __linux |
|
|
1953 | unsigned int v = 0; |
|
|
1954 | struct utsname buf; |
|
|
1955 | int i; |
|
|
1956 | char *p = buf.release; |
|
|
1957 | |
|
|
1958 | if (uname (&buf)) |
|
|
1959 | return 0; |
|
|
1960 | |
|
|
1961 | for (i = 3+1; --i; ) |
|
|
1962 | { |
|
|
1963 | unsigned int c = 0; |
|
|
1964 | |
|
|
1965 | for (;;) |
|
|
1966 | { |
|
|
1967 | if (*p >= '0' && *p <= '9') |
|
|
1968 | c = c * 10 + *p++ - '0'; |
|
|
1969 | else |
|
|
1970 | { |
|
|
1971 | p += *p == '.'; |
|
|
1972 | break; |
|
|
1973 | } |
|
|
1974 | } |
|
|
1975 | |
|
|
1976 | v = (v << 8) | c; |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | return v; |
|
|
1980 | #else |
|
|
1981 | return 0; |
|
|
1982 | #endif |
|
|
1983 | } |
|
|
1984 | |
|
|
1985 | /*****************************************************************************/ |
|
|
1986 | |
523 | #if EV_AVOID_STDIO |
1987 | #if EV_AVOID_STDIO |
524 | static void noinline |
1988 | ecb_noinline ecb_cold |
|
|
1989 | static void |
525 | ev_printerr (const char *msg) |
1990 | ev_printerr (const char *msg) |
526 | { |
1991 | { |
527 | write (STDERR_FILENO, msg, strlen (msg)); |
1992 | write (STDERR_FILENO, msg, strlen (msg)); |
528 | } |
1993 | } |
529 | #endif |
1994 | #endif |
530 | |
1995 | |
531 | static void (*syserr_cb)(const char *msg); |
1996 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
532 | |
1997 | |
|
|
1998 | ecb_cold |
533 | void |
1999 | void |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
2000 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
535 | { |
2001 | { |
536 | syserr_cb = cb; |
2002 | syserr_cb = cb; |
537 | } |
2003 | } |
538 | |
2004 | |
539 | static void noinline |
2005 | ecb_noinline ecb_cold |
|
|
2006 | static void |
540 | ev_syserr (const char *msg) |
2007 | ev_syserr (const char *msg) |
541 | { |
2008 | { |
542 | if (!msg) |
2009 | if (!msg) |
543 | msg = "(libev) system error"; |
2010 | msg = "(libev) system error"; |
544 | |
2011 | |
545 | if (syserr_cb) |
2012 | if (syserr_cb) |
546 | syserr_cb (msg); |
2013 | syserr_cb (msg); |
547 | else |
2014 | else |
548 | { |
2015 | { |
549 | #if EV_AVOID_STDIO |
2016 | #if EV_AVOID_STDIO |
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
2017 | ev_printerr (msg); |
553 | ev_printerr (": "); |
2018 | ev_printerr (": "); |
554 | ev_printerr (err); |
2019 | ev_printerr (strerror (errno)); |
555 | ev_printerr ("\n"); |
2020 | ev_printerr ("\n"); |
556 | #else |
2021 | #else |
557 | perror (msg); |
2022 | perror (msg); |
558 | #endif |
2023 | #endif |
559 | abort (); |
2024 | abort (); |
560 | } |
2025 | } |
561 | } |
2026 | } |
562 | |
2027 | |
563 | static void * |
2028 | static void * |
564 | ev_realloc_emul (void *ptr, long size) |
2029 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
565 | { |
2030 | { |
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
|
|
569 | /* some systems, notably openbsd and darwin, fail to properly |
2031 | /* some systems, notably openbsd and darwin, fail to properly |
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
2032 | * implement realloc (x, 0) (as required by both ansi c-89 and |
571 | * the single unix specification, so work around them here. |
2033 | * the single unix specification, so work around them here. |
|
|
2034 | * recently, also (at least) fedora and debian started breaking it, |
|
|
2035 | * despite documenting it otherwise. |
572 | */ |
2036 | */ |
573 | |
2037 | |
574 | if (size) |
2038 | if (size) |
575 | return realloc (ptr, size); |
2039 | return realloc (ptr, size); |
576 | |
2040 | |
577 | free (ptr); |
2041 | free (ptr); |
578 | return 0; |
2042 | return 0; |
579 | #endif |
|
|
580 | } |
2043 | } |
581 | |
2044 | |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
2045 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
583 | |
2046 | |
|
|
2047 | ecb_cold |
584 | void |
2048 | void |
585 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
2049 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
586 | { |
2050 | { |
587 | alloc = cb; |
2051 | alloc = cb; |
588 | } |
2052 | } |
589 | |
2053 | |
590 | inline_speed void * |
2054 | inline_speed void * |
… | |
… | |
593 | ptr = alloc (ptr, size); |
2057 | ptr = alloc (ptr, size); |
594 | |
2058 | |
595 | if (!ptr && size) |
2059 | if (!ptr && size) |
596 | { |
2060 | { |
597 | #if EV_AVOID_STDIO |
2061 | #if EV_AVOID_STDIO |
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
2062 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
599 | #else |
2063 | #else |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
2064 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
601 | #endif |
2065 | #endif |
602 | abort (); |
2066 | abort (); |
603 | } |
2067 | } |
604 | |
2068 | |
605 | return ptr; |
2069 | return ptr; |
… | |
… | |
617 | typedef struct |
2081 | typedef struct |
618 | { |
2082 | { |
619 | WL head; |
2083 | WL head; |
620 | unsigned char events; /* the events watched for */ |
2084 | unsigned char events; /* the events watched for */ |
621 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
2085 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
2086 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
623 | unsigned char unused; |
2087 | unsigned char eflags; /* flags field for use by backends */ |
624 | #if EV_USE_EPOLL |
2088 | #if EV_USE_EPOLL |
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
2089 | unsigned int egen; /* generation counter to counter epoll bugs */ |
626 | #endif |
2090 | #endif |
627 | #if EV_SELECT_IS_WINSOCKET |
2091 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
628 | SOCKET handle; |
2092 | SOCKET handle; |
|
|
2093 | #endif |
|
|
2094 | #if EV_USE_IOCP |
|
|
2095 | OVERLAPPED or, ow; |
629 | #endif |
2096 | #endif |
630 | } ANFD; |
2097 | } ANFD; |
631 | |
2098 | |
632 | /* stores the pending event set for a given watcher */ |
2099 | /* stores the pending event set for a given watcher */ |
633 | typedef struct |
2100 | typedef struct |
… | |
… | |
675 | #undef VAR |
2142 | #undef VAR |
676 | }; |
2143 | }; |
677 | #include "ev_wrap.h" |
2144 | #include "ev_wrap.h" |
678 | |
2145 | |
679 | static struct ev_loop default_loop_struct; |
2146 | static struct ev_loop default_loop_struct; |
680 | struct ev_loop *ev_default_loop_ptr; |
2147 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
681 | |
2148 | |
682 | #else |
2149 | #else |
683 | |
2150 | |
684 | ev_tstamp ev_rt_now; |
2151 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
685 | #define VAR(name,decl) static decl; |
2152 | #define VAR(name,decl) static decl; |
686 | #include "ev_vars.h" |
2153 | #include "ev_vars.h" |
687 | #undef VAR |
2154 | #undef VAR |
688 | |
2155 | |
689 | static int ev_default_loop_ptr; |
2156 | static int ev_default_loop_ptr; |
690 | |
2157 | |
691 | #endif |
2158 | #endif |
692 | |
2159 | |
693 | #if EV_FEATURE_API |
2160 | #if EV_FEATURE_API |
694 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2161 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2162 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2163 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
697 | #else |
2164 | #else |
698 | # define EV_RELEASE_CB (void)0 |
2165 | # define EV_RELEASE_CB (void)0 |
699 | # define EV_ACQUIRE_CB (void)0 |
2166 | # define EV_ACQUIRE_CB (void)0 |
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2167 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
701 | #endif |
2168 | #endif |
702 | |
2169 | |
703 | #define EVUNLOOP_RECURSE 0x80 |
2170 | #define EVBREAK_RECURSE 0x80 |
704 | |
2171 | |
705 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
706 | |
2173 | |
707 | #ifndef EV_HAVE_EV_TIME |
2174 | #ifndef EV_HAVE_EV_TIME |
708 | ev_tstamp |
2175 | ev_tstamp |
709 | ev_time (void) |
2176 | ev_time (void) EV_NOEXCEPT |
710 | { |
2177 | { |
711 | #if EV_USE_REALTIME |
2178 | #if EV_USE_REALTIME |
712 | if (expect_true (have_realtime)) |
2179 | if (ecb_expect_true (have_realtime)) |
713 | { |
2180 | { |
714 | struct timespec ts; |
2181 | struct timespec ts; |
715 | clock_gettime (CLOCK_REALTIME, &ts); |
2182 | clock_gettime (CLOCK_REALTIME, &ts); |
716 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2183 | return EV_TS_GET (ts); |
717 | } |
2184 | } |
718 | #endif |
2185 | #endif |
719 | |
2186 | |
|
|
2187 | { |
720 | struct timeval tv; |
2188 | struct timeval tv; |
721 | gettimeofday (&tv, 0); |
2189 | gettimeofday (&tv, 0); |
722 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2190 | return EV_TV_GET (tv); |
|
|
2191 | } |
723 | } |
2192 | } |
724 | #endif |
2193 | #endif |
725 | |
2194 | |
726 | inline_size ev_tstamp |
2195 | inline_size ev_tstamp |
727 | get_clock (void) |
2196 | get_clock (void) |
728 | { |
2197 | { |
729 | #if EV_USE_MONOTONIC |
2198 | #if EV_USE_MONOTONIC |
730 | if (expect_true (have_monotonic)) |
2199 | if (ecb_expect_true (have_monotonic)) |
731 | { |
2200 | { |
732 | struct timespec ts; |
2201 | struct timespec ts; |
733 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2202 | clock_gettime (CLOCK_MONOTONIC, &ts); |
734 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2203 | return EV_TS_GET (ts); |
735 | } |
2204 | } |
736 | #endif |
2205 | #endif |
737 | |
2206 | |
738 | return ev_time (); |
2207 | return ev_time (); |
739 | } |
2208 | } |
740 | |
2209 | |
741 | #if EV_MULTIPLICITY |
2210 | #if EV_MULTIPLICITY |
742 | ev_tstamp |
2211 | ev_tstamp |
743 | ev_now (EV_P) |
2212 | ev_now (EV_P) EV_NOEXCEPT |
744 | { |
2213 | { |
745 | return ev_rt_now; |
2214 | return ev_rt_now; |
746 | } |
2215 | } |
747 | #endif |
2216 | #endif |
748 | |
2217 | |
749 | void |
2218 | void |
750 | ev_sleep (ev_tstamp delay) |
2219 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
751 | { |
2220 | { |
752 | if (delay > 0.) |
2221 | if (delay > EV_TS_CONST (0.)) |
753 | { |
2222 | { |
754 | #if EV_USE_NANOSLEEP |
2223 | #if EV_USE_NANOSLEEP |
755 | struct timespec ts; |
2224 | struct timespec ts; |
756 | |
2225 | |
757 | ts.tv_sec = (time_t)delay; |
2226 | EV_TS_SET (ts, delay); |
758 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
759 | |
|
|
760 | nanosleep (&ts, 0); |
2227 | nanosleep (&ts, 0); |
761 | #elif defined(_WIN32) |
2228 | #elif defined _WIN32 |
|
|
2229 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2230 | /* compared to select (µs) or nanosleep (ns) */ |
762 | Sleep ((unsigned long)(delay * 1e3)); |
2231 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
763 | #else |
2232 | #else |
764 | struct timeval tv; |
2233 | struct timeval tv; |
765 | |
|
|
766 | tv.tv_sec = (time_t)delay; |
|
|
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
768 | |
2234 | |
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2235 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2236 | /* something not guaranteed by newer posix versions, but guaranteed */ |
771 | /* by older ones */ |
2237 | /* by older ones */ |
|
|
2238 | EV_TV_SET (tv, delay); |
772 | select (0, 0, 0, 0, &tv); |
2239 | select (0, 0, 0, 0, &tv); |
773 | #endif |
2240 | #endif |
774 | } |
2241 | } |
775 | } |
2242 | } |
776 | |
2243 | |
777 | /*****************************************************************************/ |
2244 | /*****************************************************************************/ |
778 | |
2245 | |
779 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2246 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
780 | |
2247 | |
781 | /* find a suitable new size for the given array, */ |
2248 | /* find a suitable new size for the given array, */ |
782 | /* hopefully by rounding to a ncie-to-malloc size */ |
2249 | /* hopefully by rounding to a nice-to-malloc size */ |
783 | inline_size int |
2250 | inline_size int |
784 | array_nextsize (int elem, int cur, int cnt) |
2251 | array_nextsize (int elem, int cur, int cnt) |
785 | { |
2252 | { |
786 | int ncur = cur + 1; |
2253 | int ncur = cur + 1; |
787 | |
2254 | |
788 | do |
2255 | do |
789 | ncur <<= 1; |
2256 | ncur <<= 1; |
790 | while (cnt > ncur); |
2257 | while (cnt > ncur); |
791 | |
2258 | |
792 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2259 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
793 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2260 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
794 | { |
2261 | { |
795 | ncur *= elem; |
2262 | ncur *= elem; |
796 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2263 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
797 | ncur = ncur - sizeof (void *) * 4; |
2264 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
799 | } |
2266 | } |
800 | |
2267 | |
801 | return ncur; |
2268 | return ncur; |
802 | } |
2269 | } |
803 | |
2270 | |
804 | static noinline void * |
2271 | ecb_noinline ecb_cold |
|
|
2272 | static void * |
805 | array_realloc (int elem, void *base, int *cur, int cnt) |
2273 | array_realloc (int elem, void *base, int *cur, int cnt) |
806 | { |
2274 | { |
807 | *cur = array_nextsize (elem, *cur, cnt); |
2275 | *cur = array_nextsize (elem, *cur, cnt); |
808 | return ev_realloc (base, elem * *cur); |
2276 | return ev_realloc (base, elem * *cur); |
809 | } |
2277 | } |
810 | |
2278 | |
|
|
2279 | #define array_needsize_noinit(base,offset,count) |
|
|
2280 | |
811 | #define array_init_zero(base,count) \ |
2281 | #define array_needsize_zerofill(base,offset,count) \ |
812 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2282 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
813 | |
2283 | |
814 | #define array_needsize(type,base,cur,cnt,init) \ |
2284 | #define array_needsize(type,base,cur,cnt,init) \ |
815 | if (expect_false ((cnt) > (cur))) \ |
2285 | if (ecb_expect_false ((cnt) > (cur))) \ |
816 | { \ |
2286 | { \ |
817 | int ocur_ = (cur); \ |
2287 | ecb_unused int ocur_ = (cur); \ |
818 | (base) = (type *)array_realloc \ |
2288 | (base) = (type *)array_realloc \ |
819 | (sizeof (type), (base), &(cur), (cnt)); \ |
2289 | (sizeof (type), (base), &(cur), (cnt)); \ |
820 | init ((base) + (ocur_), (cur) - ocur_); \ |
2290 | init ((base), ocur_, ((cur) - ocur_)); \ |
821 | } |
2291 | } |
822 | |
2292 | |
823 | #if 0 |
2293 | #if 0 |
824 | #define array_slim(type,stem) \ |
2294 | #define array_slim(type,stem) \ |
825 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2295 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
834 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2304 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
835 | |
2305 | |
836 | /*****************************************************************************/ |
2306 | /*****************************************************************************/ |
837 | |
2307 | |
838 | /* dummy callback for pending events */ |
2308 | /* dummy callback for pending events */ |
839 | static void noinline |
2309 | ecb_noinline |
|
|
2310 | static void |
840 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2311 | pendingcb (EV_P_ ev_prepare *w, int revents) |
841 | { |
2312 | { |
842 | } |
2313 | } |
843 | |
2314 | |
844 | void noinline |
2315 | ecb_noinline |
|
|
2316 | void |
845 | ev_feed_event (EV_P_ void *w, int revents) |
2317 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
846 | { |
2318 | { |
847 | W w_ = (W)w; |
2319 | W w_ = (W)w; |
848 | int pri = ABSPRI (w_); |
2320 | int pri = ABSPRI (w_); |
849 | |
2321 | |
850 | if (expect_false (w_->pending)) |
2322 | if (ecb_expect_false (w_->pending)) |
851 | pendings [pri][w_->pending - 1].events |= revents; |
2323 | pendings [pri][w_->pending - 1].events |= revents; |
852 | else |
2324 | else |
853 | { |
2325 | { |
854 | w_->pending = ++pendingcnt [pri]; |
2326 | w_->pending = ++pendingcnt [pri]; |
855 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2327 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
856 | pendings [pri][w_->pending - 1].w = w_; |
2328 | pendings [pri][w_->pending - 1].w = w_; |
857 | pendings [pri][w_->pending - 1].events = revents; |
2329 | pendings [pri][w_->pending - 1].events = revents; |
858 | } |
2330 | } |
|
|
2331 | |
|
|
2332 | pendingpri = NUMPRI - 1; |
859 | } |
2333 | } |
860 | |
2334 | |
861 | inline_speed void |
2335 | inline_speed void |
862 | feed_reverse (EV_P_ W w) |
2336 | feed_reverse (EV_P_ W w) |
863 | { |
2337 | { |
864 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2338 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
865 | rfeeds [rfeedcnt++] = w; |
2339 | rfeeds [rfeedcnt++] = w; |
866 | } |
2340 | } |
867 | |
2341 | |
868 | inline_size void |
2342 | inline_size void |
869 | feed_reverse_done (EV_P_ int revents) |
2343 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
904 | inline_speed void |
2378 | inline_speed void |
905 | fd_event (EV_P_ int fd, int revents) |
2379 | fd_event (EV_P_ int fd, int revents) |
906 | { |
2380 | { |
907 | ANFD *anfd = anfds + fd; |
2381 | ANFD *anfd = anfds + fd; |
908 | |
2382 | |
909 | if (expect_true (!anfd->reify)) |
2383 | if (ecb_expect_true (!anfd->reify)) |
910 | fd_event_nocheck (EV_A_ fd, revents); |
2384 | fd_event_nocheck (EV_A_ fd, revents); |
911 | } |
2385 | } |
912 | |
2386 | |
913 | void |
2387 | void |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2388 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
915 | { |
2389 | { |
916 | if (fd >= 0 && fd < anfdmax) |
2390 | if (fd >= 0 && fd < anfdmax) |
917 | fd_event_nocheck (EV_A_ fd, revents); |
2391 | fd_event_nocheck (EV_A_ fd, revents); |
918 | } |
2392 | } |
919 | |
2393 | |
… | |
… | |
922 | inline_size void |
2396 | inline_size void |
923 | fd_reify (EV_P) |
2397 | fd_reify (EV_P) |
924 | { |
2398 | { |
925 | int i; |
2399 | int i; |
926 | |
2400 | |
|
|
2401 | /* most backends do not modify the fdchanges list in backend_modify. |
|
|
2402 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2403 | * to handle events in backend_modify, causing fdchanges to be amended, |
|
|
2404 | * which could result in an endless loop. |
|
|
2405 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2406 | * during fd_reify. that means that for those backends, fdchangecnt |
|
|
2407 | * might be non-zero during poll, which must cause them to not block. |
|
|
2408 | * to not put too much of a burden on other backends, this detail |
|
|
2409 | * needs to be handled in the backend. |
|
|
2410 | */ |
|
|
2411 | int changecnt = fdchangecnt; |
|
|
2412 | |
|
|
2413 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
927 | for (i = 0; i < fdchangecnt; ++i) |
2414 | for (i = 0; i < changecnt; ++i) |
|
|
2415 | { |
|
|
2416 | int fd = fdchanges [i]; |
|
|
2417 | ANFD *anfd = anfds + fd; |
|
|
2418 | |
|
|
2419 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2420 | { |
|
|
2421 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2422 | |
|
|
2423 | if (handle != anfd->handle) |
|
|
2424 | { |
|
|
2425 | unsigned long arg; |
|
|
2426 | |
|
|
2427 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2428 | |
|
|
2429 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2430 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2431 | anfd->events = 0; |
|
|
2432 | anfd->handle = handle; |
|
|
2433 | } |
|
|
2434 | } |
|
|
2435 | } |
|
|
2436 | #endif |
|
|
2437 | |
|
|
2438 | for (i = 0; i < changecnt; ++i) |
928 | { |
2439 | { |
929 | int fd = fdchanges [i]; |
2440 | int fd = fdchanges [i]; |
930 | ANFD *anfd = anfds + fd; |
2441 | ANFD *anfd = anfds + fd; |
931 | ev_io *w; |
2442 | ev_io *w; |
932 | |
2443 | |
933 | unsigned char events = 0; |
2444 | unsigned char o_events = anfd->events; |
|
|
2445 | unsigned char o_reify = anfd->reify; |
934 | |
2446 | |
935 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2447 | anfd->reify = 0; |
936 | events |= (unsigned char)w->events; |
|
|
937 | |
2448 | |
938 | #if EV_SELECT_IS_WINSOCKET |
2449 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
939 | if (events) |
|
|
940 | { |
2450 | { |
941 | unsigned long arg; |
2451 | anfd->events = 0; |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2452 | |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2453 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
2454 | anfd->events |= (unsigned char)w->events; |
|
|
2455 | |
|
|
2456 | if (o_events != anfd->events) |
|
|
2457 | o_reify = EV__IOFDSET; /* actually |= */ |
944 | } |
2458 | } |
945 | #endif |
|
|
946 | |
2459 | |
947 | { |
2460 | if (o_reify & EV__IOFDSET) |
948 | unsigned char o_events = anfd->events; |
|
|
949 | unsigned char o_reify = anfd->reify; |
|
|
950 | |
|
|
951 | anfd->reify = 0; |
|
|
952 | anfd->events = events; |
|
|
953 | |
|
|
954 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
955 | backend_modify (EV_A_ fd, o_events, events); |
2461 | backend_modify (EV_A_ fd, o_events, anfd->events); |
956 | } |
2462 | } |
957 | } |
|
|
958 | |
2463 | |
|
|
2464 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2465 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2466 | * front and hope the backend handles this case. |
|
|
2467 | */ |
|
|
2468 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2469 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2470 | |
959 | fdchangecnt = 0; |
2471 | fdchangecnt -= changecnt; |
960 | } |
2472 | } |
961 | |
2473 | |
962 | /* something about the given fd changed */ |
2474 | /* something about the given fd changed */ |
963 | inline_size void |
2475 | inline_size |
|
|
2476 | void |
964 | fd_change (EV_P_ int fd, int flags) |
2477 | fd_change (EV_P_ int fd, int flags) |
965 | { |
2478 | { |
966 | unsigned char reify = anfds [fd].reify; |
2479 | unsigned char reify = anfds [fd].reify; |
967 | anfds [fd].reify |= flags; |
2480 | anfds [fd].reify = reify | flags; |
968 | |
2481 | |
969 | if (expect_true (!reify)) |
2482 | if (ecb_expect_true (!reify)) |
970 | { |
2483 | { |
971 | ++fdchangecnt; |
2484 | ++fdchangecnt; |
972 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2485 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
973 | fdchanges [fdchangecnt - 1] = fd; |
2486 | fdchanges [fdchangecnt - 1] = fd; |
974 | } |
2487 | } |
975 | } |
2488 | } |
976 | |
2489 | |
977 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2490 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
978 | inline_speed void |
2491 | inline_speed ecb_cold void |
979 | fd_kill (EV_P_ int fd) |
2492 | fd_kill (EV_P_ int fd) |
980 | { |
2493 | { |
981 | ev_io *w; |
2494 | ev_io *w; |
982 | |
2495 | |
983 | while ((w = (ev_io *)anfds [fd].head)) |
2496 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2499 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
987 | } |
2500 | } |
988 | } |
2501 | } |
989 | |
2502 | |
990 | /* check whether the given fd is actually valid, for error recovery */ |
2503 | /* check whether the given fd is actually valid, for error recovery */ |
991 | inline_size int |
2504 | inline_size ecb_cold int |
992 | fd_valid (int fd) |
2505 | fd_valid (int fd) |
993 | { |
2506 | { |
994 | #ifdef _WIN32 |
2507 | #ifdef _WIN32 |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2508 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
996 | #else |
2509 | #else |
997 | return fcntl (fd, F_GETFD) != -1; |
2510 | return fcntl (fd, F_GETFD) != -1; |
998 | #endif |
2511 | #endif |
999 | } |
2512 | } |
1000 | |
2513 | |
1001 | /* called on EBADF to verify fds */ |
2514 | /* called on EBADF to verify fds */ |
1002 | static void noinline |
2515 | ecb_noinline ecb_cold |
|
|
2516 | static void |
1003 | fd_ebadf (EV_P) |
2517 | fd_ebadf (EV_P) |
1004 | { |
2518 | { |
1005 | int fd; |
2519 | int fd; |
1006 | |
2520 | |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
2521 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1009 | if (!fd_valid (fd) && errno == EBADF) |
2523 | if (!fd_valid (fd) && errno == EBADF) |
1010 | fd_kill (EV_A_ fd); |
2524 | fd_kill (EV_A_ fd); |
1011 | } |
2525 | } |
1012 | |
2526 | |
1013 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2527 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1014 | static void noinline |
2528 | ecb_noinline ecb_cold |
|
|
2529 | static void |
1015 | fd_enomem (EV_P) |
2530 | fd_enomem (EV_P) |
1016 | { |
2531 | { |
1017 | int fd; |
2532 | int fd; |
1018 | |
2533 | |
1019 | for (fd = anfdmax; fd--; ) |
2534 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1023 | break; |
2538 | break; |
1024 | } |
2539 | } |
1025 | } |
2540 | } |
1026 | |
2541 | |
1027 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2542 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1028 | static void noinline |
2543 | ecb_noinline |
|
|
2544 | static void |
1029 | fd_rearm_all (EV_P) |
2545 | fd_rearm_all (EV_P) |
1030 | { |
2546 | { |
1031 | int fd; |
2547 | int fd; |
1032 | |
2548 | |
1033 | for (fd = 0; fd < anfdmax; ++fd) |
2549 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1054 | } |
2570 | } |
1055 | |
2571 | |
1056 | /*****************************************************************************/ |
2572 | /*****************************************************************************/ |
1057 | |
2573 | |
1058 | /* |
2574 | /* |
1059 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2575 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1060 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2576 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1061 | * the branching factor of the d-tree. |
2577 | * the branching factor of the d-tree. |
1062 | */ |
2578 | */ |
1063 | |
2579 | |
1064 | /* |
2580 | /* |
… | |
… | |
1086 | ev_tstamp minat; |
2602 | ev_tstamp minat; |
1087 | ANHE *minpos; |
2603 | ANHE *minpos; |
1088 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2604 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1089 | |
2605 | |
1090 | /* find minimum child */ |
2606 | /* find minimum child */ |
1091 | if (expect_true (pos + DHEAP - 1 < E)) |
2607 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1092 | { |
2608 | { |
1093 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2609 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1094 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2610 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1095 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2611 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1096 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2612 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1097 | } |
2613 | } |
1098 | else if (pos < E) |
2614 | else if (pos < E) |
1099 | { |
2615 | { |
1100 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2616 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1101 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2617 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1102 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2618 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1103 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2619 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1104 | } |
2620 | } |
1105 | else |
2621 | else |
1106 | break; |
2622 | break; |
1107 | |
2623 | |
1108 | if (ANHE_at (he) <= minat) |
2624 | if (ANHE_at (he) <= minat) |
… | |
… | |
1116 | |
2632 | |
1117 | heap [k] = he; |
2633 | heap [k] = he; |
1118 | ev_active (ANHE_w (he)) = k; |
2634 | ev_active (ANHE_w (he)) = k; |
1119 | } |
2635 | } |
1120 | |
2636 | |
1121 | #else /* 4HEAP */ |
2637 | #else /* not 4HEAP */ |
1122 | |
2638 | |
1123 | #define HEAP0 1 |
2639 | #define HEAP0 1 |
1124 | #define HPARENT(k) ((k) >> 1) |
2640 | #define HPARENT(k) ((k) >> 1) |
1125 | #define UPHEAP_DONE(p,k) (!(p)) |
2641 | #define UPHEAP_DONE(p,k) (!(p)) |
1126 | |
2642 | |
… | |
… | |
1198 | upheap (heap, i + HEAP0); |
2714 | upheap (heap, i + HEAP0); |
1199 | } |
2715 | } |
1200 | |
2716 | |
1201 | /*****************************************************************************/ |
2717 | /*****************************************************************************/ |
1202 | |
2718 | |
1203 | /* associate signal watchers to a signal signal */ |
2719 | /* associate signal watchers to a signal */ |
1204 | typedef struct |
2720 | typedef struct |
1205 | { |
2721 | { |
1206 | EV_ATOMIC_T pending; |
2722 | EV_ATOMIC_T pending; |
1207 | #if EV_MULTIPLICITY |
2723 | #if EV_MULTIPLICITY |
1208 | EV_P; |
2724 | EV_P; |
… | |
… | |
1214 | |
2730 | |
1215 | /*****************************************************************************/ |
2731 | /*****************************************************************************/ |
1216 | |
2732 | |
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2733 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1218 | |
2734 | |
1219 | static void noinline |
2735 | ecb_noinline ecb_cold |
|
|
2736 | static void |
1220 | evpipe_init (EV_P) |
2737 | evpipe_init (EV_P) |
1221 | { |
2738 | { |
1222 | if (!ev_is_active (&pipe_w)) |
2739 | if (!ev_is_active (&pipe_w)) |
1223 | { |
2740 | { |
|
|
2741 | int fds [2]; |
|
|
2742 | |
1224 | # if EV_USE_EVENTFD |
2743 | # if EV_USE_EVENTFD |
|
|
2744 | fds [0] = -1; |
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2745 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1226 | if (evfd < 0 && errno == EINVAL) |
2746 | if (fds [1] < 0 && errno == EINVAL) |
1227 | evfd = eventfd (0, 0); |
2747 | fds [1] = eventfd (0, 0); |
1228 | |
2748 | |
1229 | if (evfd >= 0) |
2749 | if (fds [1] < 0) |
|
|
2750 | # endif |
1230 | { |
2751 | { |
|
|
2752 | while (pipe (fds)) |
|
|
2753 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2754 | |
|
|
2755 | fd_intern (fds [0]); |
|
|
2756 | } |
|
|
2757 | |
1231 | evpipe [0] = -1; |
2758 | evpipe [0] = fds [0]; |
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2759 | |
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
2760 | if (evpipe [1] < 0) |
|
|
2761 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2762 | else |
|
|
2763 | { |
|
|
2764 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2765 | /* so that evpipe_write can always rely on its value. */ |
|
|
2766 | /* this branch does not do anything sensible on windows, */ |
|
|
2767 | /* so must not be executed on windows */ |
|
|
2768 | |
|
|
2769 | dup2 (fds [1], evpipe [1]); |
|
|
2770 | close (fds [1]); |
|
|
2771 | } |
|
|
2772 | |
|
|
2773 | fd_intern (evpipe [1]); |
|
|
2774 | |
|
|
2775 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2776 | ev_io_start (EV_A_ &pipe_w); |
|
|
2777 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2778 | } |
|
|
2779 | } |
|
|
2780 | |
|
|
2781 | inline_speed void |
|
|
2782 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2783 | { |
|
|
2784 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2785 | |
|
|
2786 | if (ecb_expect_true (*flag)) |
|
|
2787 | return; |
|
|
2788 | |
|
|
2789 | *flag = 1; |
|
|
2790 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2791 | |
|
|
2792 | pipe_write_skipped = 1; |
|
|
2793 | |
|
|
2794 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2795 | |
|
|
2796 | if (pipe_write_wanted) |
|
|
2797 | { |
|
|
2798 | int old_errno; |
|
|
2799 | |
|
|
2800 | pipe_write_skipped = 0; |
|
|
2801 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2802 | |
|
|
2803 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2804 | |
|
|
2805 | #if EV_USE_EVENTFD |
|
|
2806 | if (evpipe [0] < 0) |
|
|
2807 | { |
|
|
2808 | uint64_t counter = 1; |
|
|
2809 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1234 | } |
2810 | } |
1235 | else |
2811 | else |
1236 | # endif |
2812 | #endif |
1237 | { |
2813 | { |
1238 | while (pipe (evpipe)) |
2814 | #ifdef _WIN32 |
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
2815 | WSABUF buf; |
1240 | |
2816 | DWORD sent; |
1241 | fd_intern (evpipe [0]); |
2817 | buf.buf = (char *)&buf; |
1242 | fd_intern (evpipe [1]); |
2818 | buf.len = 1; |
1243 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2819 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2820 | #else |
|
|
2821 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2822 | #endif |
1244 | } |
2823 | } |
1245 | |
|
|
1246 | ev_io_start (EV_A_ &pipe_w); |
|
|
1247 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1248 | } |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | inline_size void |
|
|
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1253 | { |
|
|
1254 | if (!*flag) |
|
|
1255 | { |
|
|
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
|
|
1258 | |
|
|
1259 | *flag = 1; |
|
|
1260 | |
|
|
1261 | #if EV_USE_EVENTFD |
|
|
1262 | if (evfd >= 0) |
|
|
1263 | { |
|
|
1264 | uint64_t counter = 1; |
|
|
1265 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1266 | } |
|
|
1267 | else |
|
|
1268 | #endif |
|
|
1269 | write (evpipe [1], &dummy, 1); |
|
|
1270 | |
2824 | |
1271 | errno = old_errno; |
2825 | errno = old_errno; |
1272 | } |
2826 | } |
1273 | } |
2827 | } |
1274 | |
2828 | |
… | |
… | |
1277 | static void |
2831 | static void |
1278 | pipecb (EV_P_ ev_io *iow, int revents) |
2832 | pipecb (EV_P_ ev_io *iow, int revents) |
1279 | { |
2833 | { |
1280 | int i; |
2834 | int i; |
1281 | |
2835 | |
|
|
2836 | if (revents & EV_READ) |
|
|
2837 | { |
1282 | #if EV_USE_EVENTFD |
2838 | #if EV_USE_EVENTFD |
1283 | if (evfd >= 0) |
2839 | if (evpipe [0] < 0) |
1284 | { |
2840 | { |
1285 | uint64_t counter; |
2841 | uint64_t counter; |
1286 | read (evfd, &counter, sizeof (uint64_t)); |
2842 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1287 | } |
2843 | } |
1288 | else |
2844 | else |
1289 | #endif |
2845 | #endif |
1290 | { |
2846 | { |
1291 | char dummy; |
2847 | char dummy[4]; |
|
|
2848 | #ifdef _WIN32 |
|
|
2849 | WSABUF buf; |
|
|
2850 | DWORD recvd; |
|
|
2851 | DWORD flags = 0; |
|
|
2852 | buf.buf = dummy; |
|
|
2853 | buf.len = sizeof (dummy); |
|
|
2854 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2855 | #else |
1292 | read (evpipe [0], &dummy, 1); |
2856 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2857 | #endif |
|
|
2858 | } |
1293 | } |
2859 | } |
1294 | |
2860 | |
|
|
2861 | pipe_write_skipped = 0; |
|
|
2862 | |
|
|
2863 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2864 | |
|
|
2865 | #if EV_SIGNAL_ENABLE |
1295 | if (sig_pending) |
2866 | if (sig_pending) |
1296 | { |
2867 | { |
1297 | sig_pending = 0; |
2868 | sig_pending = 0; |
1298 | |
2869 | |
|
|
2870 | ECB_MEMORY_FENCE; |
|
|
2871 | |
1299 | for (i = EV_NSIG - 1; i--; ) |
2872 | for (i = EV_NSIG - 1; i--; ) |
1300 | if (expect_false (signals [i].pending)) |
2873 | if (ecb_expect_false (signals [i].pending)) |
1301 | ev_feed_signal_event (EV_A_ i + 1); |
2874 | ev_feed_signal_event (EV_A_ i + 1); |
1302 | } |
2875 | } |
|
|
2876 | #endif |
1303 | |
2877 | |
1304 | #if EV_ASYNC_ENABLE |
2878 | #if EV_ASYNC_ENABLE |
1305 | if (async_pending) |
2879 | if (async_pending) |
1306 | { |
2880 | { |
1307 | async_pending = 0; |
2881 | async_pending = 0; |
|
|
2882 | |
|
|
2883 | ECB_MEMORY_FENCE; |
1308 | |
2884 | |
1309 | for (i = asynccnt; i--; ) |
2885 | for (i = asynccnt; i--; ) |
1310 | if (asyncs [i]->sent) |
2886 | if (asyncs [i]->sent) |
1311 | { |
2887 | { |
1312 | asyncs [i]->sent = 0; |
2888 | asyncs [i]->sent = 0; |
|
|
2889 | ECB_MEMORY_FENCE_RELEASE; |
1313 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2890 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1314 | } |
2891 | } |
1315 | } |
2892 | } |
1316 | #endif |
2893 | #endif |
1317 | } |
2894 | } |
1318 | |
2895 | |
1319 | /*****************************************************************************/ |
2896 | /*****************************************************************************/ |
1320 | |
2897 | |
|
|
2898 | void |
|
|
2899 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2900 | { |
|
|
2901 | #if EV_MULTIPLICITY |
|
|
2902 | EV_P; |
|
|
2903 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2904 | EV_A = signals [signum - 1].loop; |
|
|
2905 | |
|
|
2906 | if (!EV_A) |
|
|
2907 | return; |
|
|
2908 | #endif |
|
|
2909 | |
|
|
2910 | signals [signum - 1].pending = 1; |
|
|
2911 | evpipe_write (EV_A_ &sig_pending); |
|
|
2912 | } |
|
|
2913 | |
1321 | static void |
2914 | static void |
1322 | ev_sighandler (int signum) |
2915 | ev_sighandler (int signum) |
1323 | { |
2916 | { |
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P = signals [signum - 1].loop; |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | #ifdef _WIN32 |
2917 | #ifdef _WIN32 |
1329 | signal (signum, ev_sighandler); |
2918 | signal (signum, ev_sighandler); |
1330 | #endif |
2919 | #endif |
1331 | |
2920 | |
1332 | signals [signum - 1].pending = 1; |
2921 | ev_feed_signal (signum); |
1333 | evpipe_write (EV_A_ &sig_pending); |
|
|
1334 | } |
2922 | } |
1335 | |
2923 | |
1336 | void noinline |
2924 | ecb_noinline |
|
|
2925 | void |
1337 | ev_feed_signal_event (EV_P_ int signum) |
2926 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1338 | { |
2927 | { |
1339 | WL w; |
2928 | WL w; |
1340 | |
2929 | |
1341 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2930 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1342 | return; |
2931 | return; |
1343 | |
2932 | |
1344 | --signum; |
2933 | --signum; |
1345 | |
2934 | |
1346 | #if EV_MULTIPLICITY |
2935 | #if EV_MULTIPLICITY |
1347 | /* it is permissible to try to feed a signal to the wrong loop */ |
2936 | /* it is permissible to try to feed a signal to the wrong loop */ |
1348 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2937 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1349 | |
2938 | |
1350 | if (expect_false (signals [signum].loop != EV_A)) |
2939 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1351 | return; |
2940 | return; |
1352 | #endif |
2941 | #endif |
1353 | |
2942 | |
1354 | signals [signum].pending = 0; |
2943 | signals [signum].pending = 0; |
|
|
2944 | ECB_MEMORY_FENCE_RELEASE; |
1355 | |
2945 | |
1356 | for (w = signals [signum].head; w; w = w->next) |
2946 | for (w = signals [signum].head; w; w = w->next) |
1357 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2947 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1358 | } |
2948 | } |
1359 | |
2949 | |
… | |
… | |
1438 | |
3028 | |
1439 | #endif |
3029 | #endif |
1440 | |
3030 | |
1441 | /*****************************************************************************/ |
3031 | /*****************************************************************************/ |
1442 | |
3032 | |
|
|
3033 | #if EV_USE_TIMERFD |
|
|
3034 | |
|
|
3035 | static void periodics_reschedule (EV_P); |
|
|
3036 | |
|
|
3037 | static void |
|
|
3038 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
3039 | { |
|
|
3040 | struct itimerspec its = { 0 }; |
|
|
3041 | |
|
|
3042 | its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2; |
|
|
3043 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
3044 | |
|
|
3045 | ev_rt_now = ev_time (); |
|
|
3046 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
3047 | /* but maybe in the future we want the full treatment. */ |
|
|
3048 | /* |
|
|
3049 | now_floor = EV_TS_CONST (0.); |
|
|
3050 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
3051 | */ |
|
|
3052 | #if EV_PERIODIC_ENABLE |
|
|
3053 | periodics_reschedule (EV_A); |
|
|
3054 | #endif |
|
|
3055 | } |
|
|
3056 | |
|
|
3057 | ecb_noinline ecb_cold |
|
|
3058 | static void |
|
|
3059 | evtimerfd_init (EV_P) |
|
|
3060 | { |
|
|
3061 | if (!ev_is_active (&timerfd_w)) |
|
|
3062 | { |
|
|
3063 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
3064 | |
|
|
3065 | if (timerfd >= 0) |
|
|
3066 | { |
|
|
3067 | fd_intern (timerfd); /* just to be sure */ |
|
|
3068 | |
|
|
3069 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
3070 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
3071 | ev_io_start (EV_A_ &timerfd_w); |
|
|
3072 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
3073 | |
|
|
3074 | /* (re-) arm timer */ |
|
|
3075 | timerfdcb (EV_A_ 0, 0); |
|
|
3076 | } |
|
|
3077 | } |
|
|
3078 | } |
|
|
3079 | |
|
|
3080 | #endif |
|
|
3081 | |
|
|
3082 | /*****************************************************************************/ |
|
|
3083 | |
|
|
3084 | #if EV_USE_IOCP |
|
|
3085 | # include "ev_iocp.c" |
|
|
3086 | #endif |
1443 | #if EV_USE_PORT |
3087 | #if EV_USE_PORT |
1444 | # include "ev_port.c" |
3088 | # include "ev_port.c" |
1445 | #endif |
3089 | #endif |
1446 | #if EV_USE_KQUEUE |
3090 | #if EV_USE_KQUEUE |
1447 | # include "ev_kqueue.c" |
3091 | # include "ev_kqueue.c" |
1448 | #endif |
3092 | #endif |
1449 | #if EV_USE_EPOLL |
3093 | #if EV_USE_EPOLL |
1450 | # include "ev_epoll.c" |
3094 | # include "ev_epoll.c" |
1451 | #endif |
3095 | #endif |
|
|
3096 | #if EV_USE_LINUXAIO |
|
|
3097 | # include "ev_linuxaio.c" |
|
|
3098 | #endif |
|
|
3099 | #if EV_USE_IOURING |
|
|
3100 | # include "ev_iouring.c" |
|
|
3101 | #endif |
1452 | #if EV_USE_POLL |
3102 | #if EV_USE_POLL |
1453 | # include "ev_poll.c" |
3103 | # include "ev_poll.c" |
1454 | #endif |
3104 | #endif |
1455 | #if EV_USE_SELECT |
3105 | #if EV_USE_SELECT |
1456 | # include "ev_select.c" |
3106 | # include "ev_select.c" |
1457 | #endif |
3107 | #endif |
1458 | |
3108 | |
1459 | int |
3109 | ecb_cold int |
1460 | ev_version_major (void) |
3110 | ev_version_major (void) EV_NOEXCEPT |
1461 | { |
3111 | { |
1462 | return EV_VERSION_MAJOR; |
3112 | return EV_VERSION_MAJOR; |
1463 | } |
3113 | } |
1464 | |
3114 | |
1465 | int |
3115 | ecb_cold int |
1466 | ev_version_minor (void) |
3116 | ev_version_minor (void) EV_NOEXCEPT |
1467 | { |
3117 | { |
1468 | return EV_VERSION_MINOR; |
3118 | return EV_VERSION_MINOR; |
1469 | } |
3119 | } |
1470 | |
3120 | |
1471 | /* return true if we are running with elevated privileges and should ignore env variables */ |
3121 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1472 | int inline_size |
3122 | inline_size ecb_cold int |
1473 | enable_secure (void) |
3123 | enable_secure (void) |
1474 | { |
3124 | { |
1475 | #ifdef _WIN32 |
3125 | #ifdef _WIN32 |
1476 | return 0; |
3126 | return 0; |
1477 | #else |
3127 | #else |
1478 | return getuid () != geteuid () |
3128 | return getuid () != geteuid () |
1479 | || getgid () != getegid (); |
3129 | || getgid () != getegid (); |
1480 | #endif |
3130 | #endif |
1481 | } |
3131 | } |
1482 | |
3132 | |
|
|
3133 | ecb_cold |
1483 | unsigned int |
3134 | unsigned int |
1484 | ev_supported_backends (void) |
3135 | ev_supported_backends (void) EV_NOEXCEPT |
1485 | { |
3136 | { |
1486 | unsigned int flags = 0; |
3137 | unsigned int flags = 0; |
1487 | |
3138 | |
1488 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3139 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1489 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3140 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1490 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3141 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
1491 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3142 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
1492 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3143 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
1493 | |
3144 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3145 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3146 | |
1494 | return flags; |
3147 | return flags; |
1495 | } |
3148 | } |
1496 | |
3149 | |
|
|
3150 | ecb_cold |
1497 | unsigned int |
3151 | unsigned int |
1498 | ev_recommended_backends (void) |
3152 | ev_recommended_backends (void) EV_NOEXCEPT |
1499 | { |
3153 | { |
1500 | unsigned int flags = ev_supported_backends (); |
3154 | unsigned int flags = ev_supported_backends (); |
1501 | |
3155 | |
1502 | #ifndef __NetBSD__ |
3156 | #ifndef __NetBSD__ |
1503 | /* kqueue is borked on everything but netbsd apparently */ |
3157 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1507 | #ifdef __APPLE__ |
3161 | #ifdef __APPLE__ |
1508 | /* only select works correctly on that "unix-certified" platform */ |
3162 | /* only select works correctly on that "unix-certified" platform */ |
1509 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
3163 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1510 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
3164 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1511 | #endif |
3165 | #endif |
|
|
3166 | #ifdef __FreeBSD__ |
|
|
3167 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
3168 | #endif |
|
|
3169 | |
|
|
3170 | /* TODO: linuxaio is very experimental */ |
|
|
3171 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3172 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3173 | #endif |
|
|
3174 | /* TODO: iouring is super experimental */ |
|
|
3175 | #if !EV_RECOMMEND_IOURING |
|
|
3176 | flags &= ~EVBACKEND_IOURING; |
|
|
3177 | #endif |
1512 | |
3178 | |
1513 | return flags; |
3179 | return flags; |
1514 | } |
3180 | } |
1515 | |
3181 | |
|
|
3182 | ecb_cold |
1516 | unsigned int |
3183 | unsigned int |
1517 | ev_embeddable_backends (void) |
3184 | ev_embeddable_backends (void) EV_NOEXCEPT |
1518 | { |
3185 | { |
1519 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3186 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
1520 | |
3187 | |
1521 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3188 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1522 | /* please fix it and tell me how to detect the fix */ |
3189 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1523 | flags &= ~EVBACKEND_EPOLL; |
3190 | flags &= ~EVBACKEND_EPOLL; |
|
|
3191 | |
|
|
3192 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
1524 | |
3193 | |
1525 | return flags; |
3194 | return flags; |
1526 | } |
3195 | } |
1527 | |
3196 | |
1528 | unsigned int |
3197 | unsigned int |
1529 | ev_backend (EV_P) |
3198 | ev_backend (EV_P) EV_NOEXCEPT |
1530 | { |
3199 | { |
1531 | return backend; |
3200 | return backend; |
1532 | } |
3201 | } |
1533 | |
3202 | |
1534 | #if EV_FEATURE_API |
3203 | #if EV_FEATURE_API |
1535 | unsigned int |
3204 | unsigned int |
1536 | ev_iteration (EV_P) |
3205 | ev_iteration (EV_P) EV_NOEXCEPT |
1537 | { |
3206 | { |
1538 | return loop_count; |
3207 | return loop_count; |
1539 | } |
3208 | } |
1540 | |
3209 | |
1541 | unsigned int |
3210 | unsigned int |
1542 | ev_depth (EV_P) |
3211 | ev_depth (EV_P) EV_NOEXCEPT |
1543 | { |
3212 | { |
1544 | return loop_depth; |
3213 | return loop_depth; |
1545 | } |
3214 | } |
1546 | |
3215 | |
1547 | void |
3216 | void |
1548 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
3217 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1549 | { |
3218 | { |
1550 | io_blocktime = interval; |
3219 | io_blocktime = interval; |
1551 | } |
3220 | } |
1552 | |
3221 | |
1553 | void |
3222 | void |
1554 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
3223 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1555 | { |
3224 | { |
1556 | timeout_blocktime = interval; |
3225 | timeout_blocktime = interval; |
1557 | } |
3226 | } |
1558 | |
3227 | |
1559 | void |
3228 | void |
1560 | ev_set_userdata (EV_P_ void *data) |
3229 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1561 | { |
3230 | { |
1562 | userdata = data; |
3231 | userdata = data; |
1563 | } |
3232 | } |
1564 | |
3233 | |
1565 | void * |
3234 | void * |
1566 | ev_userdata (EV_P) |
3235 | ev_userdata (EV_P) EV_NOEXCEPT |
1567 | { |
3236 | { |
1568 | return userdata; |
3237 | return userdata; |
1569 | } |
3238 | } |
1570 | |
3239 | |
|
|
3240 | void |
1571 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3241 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1572 | { |
3242 | { |
1573 | invoke_cb = invoke_pending_cb; |
3243 | invoke_cb = invoke_pending_cb; |
1574 | } |
3244 | } |
1575 | |
3245 | |
|
|
3246 | void |
1576 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3247 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1577 | { |
3248 | { |
1578 | release_cb = release; |
3249 | release_cb = release; |
1579 | acquire_cb = acquire; |
3250 | acquire_cb = acquire; |
1580 | } |
3251 | } |
1581 | #endif |
3252 | #endif |
1582 | |
3253 | |
1583 | /* initialise a loop structure, must be zero-initialised */ |
3254 | /* initialise a loop structure, must be zero-initialised */ |
1584 | static void noinline |
3255 | ecb_noinline ecb_cold |
|
|
3256 | static void |
1585 | loop_init (EV_P_ unsigned int flags) |
3257 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1586 | { |
3258 | { |
1587 | if (!backend) |
3259 | if (!backend) |
1588 | { |
3260 | { |
|
|
3261 | origflags = flags; |
|
|
3262 | |
1589 | #if EV_USE_REALTIME |
3263 | #if EV_USE_REALTIME |
1590 | if (!have_realtime) |
3264 | if (!have_realtime) |
1591 | { |
3265 | { |
1592 | struct timespec ts; |
3266 | struct timespec ts; |
1593 | |
3267 | |
… | |
… | |
1615 | if (!(flags & EVFLAG_NOENV) |
3289 | if (!(flags & EVFLAG_NOENV) |
1616 | && !enable_secure () |
3290 | && !enable_secure () |
1617 | && getenv ("LIBEV_FLAGS")) |
3291 | && getenv ("LIBEV_FLAGS")) |
1618 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3292 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1619 | |
3293 | |
1620 | ev_rt_now = ev_time (); |
3294 | ev_rt_now = ev_time (); |
1621 | mn_now = get_clock (); |
3295 | mn_now = get_clock (); |
1622 | now_floor = mn_now; |
3296 | now_floor = mn_now; |
1623 | rtmn_diff = ev_rt_now - mn_now; |
3297 | rtmn_diff = ev_rt_now - mn_now; |
1624 | #if EV_FEATURE_API |
3298 | #if EV_FEATURE_API |
1625 | invoke_cb = ev_invoke_pending; |
3299 | invoke_cb = ev_invoke_pending; |
1626 | #endif |
3300 | #endif |
1627 | |
3301 | |
1628 | io_blocktime = 0.; |
3302 | io_blocktime = 0.; |
1629 | timeout_blocktime = 0.; |
3303 | timeout_blocktime = 0.; |
1630 | backend = 0; |
3304 | backend = 0; |
1631 | backend_fd = -1; |
3305 | backend_fd = -1; |
1632 | sig_pending = 0; |
3306 | sig_pending = 0; |
1633 | #if EV_ASYNC_ENABLE |
3307 | #if EV_ASYNC_ENABLE |
1634 | async_pending = 0; |
3308 | async_pending = 0; |
1635 | #endif |
3309 | #endif |
|
|
3310 | pipe_write_skipped = 0; |
|
|
3311 | pipe_write_wanted = 0; |
|
|
3312 | evpipe [0] = -1; |
|
|
3313 | evpipe [1] = -1; |
1636 | #if EV_USE_INOTIFY |
3314 | #if EV_USE_INOTIFY |
1637 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3315 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1638 | #endif |
3316 | #endif |
1639 | #if EV_USE_SIGNALFD |
3317 | #if EV_USE_SIGNALFD |
1640 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3318 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1641 | #endif |
3319 | #endif |
|
|
3320 | #if EV_USE_TIMERFD |
|
|
3321 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3322 | #endif |
1642 | |
3323 | |
1643 | if (!(flags & 0x0000ffffU)) |
3324 | if (!(flags & EVBACKEND_MASK)) |
1644 | flags |= ev_recommended_backends (); |
3325 | flags |= ev_recommended_backends (); |
1645 | |
3326 | |
|
|
3327 | #if EV_USE_IOCP |
|
|
3328 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3329 | #endif |
1646 | #if EV_USE_PORT |
3330 | #if EV_USE_PORT |
1647 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3331 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1648 | #endif |
3332 | #endif |
1649 | #if EV_USE_KQUEUE |
3333 | #if EV_USE_KQUEUE |
1650 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3334 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3335 | #endif |
|
|
3336 | #if EV_USE_IOURING |
|
|
3337 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3338 | #endif |
|
|
3339 | #if EV_USE_LINUXAIO |
|
|
3340 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1651 | #endif |
3341 | #endif |
1652 | #if EV_USE_EPOLL |
3342 | #if EV_USE_EPOLL |
1653 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3343 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1654 | #endif |
3344 | #endif |
1655 | #if EV_USE_POLL |
3345 | #if EV_USE_POLL |
1656 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3346 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1657 | #endif |
3347 | #endif |
1658 | #if EV_USE_SELECT |
3348 | #if EV_USE_SELECT |
1659 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3349 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1660 | #endif |
3350 | #endif |
1661 | |
3351 | |
1662 | ev_prepare_init (&pending_w, pendingcb); |
3352 | ev_prepare_init (&pending_w, pendingcb); |
1663 | |
3353 | |
1664 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3354 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
1667 | #endif |
3357 | #endif |
1668 | } |
3358 | } |
1669 | } |
3359 | } |
1670 | |
3360 | |
1671 | /* free up a loop structure */ |
3361 | /* free up a loop structure */ |
1672 | static void noinline |
3362 | ecb_cold |
|
|
3363 | void |
1673 | loop_destroy (EV_P) |
3364 | ev_loop_destroy (EV_P) |
1674 | { |
3365 | { |
1675 | int i; |
3366 | int i; |
|
|
3367 | |
|
|
3368 | #if EV_MULTIPLICITY |
|
|
3369 | /* mimic free (0) */ |
|
|
3370 | if (!EV_A) |
|
|
3371 | return; |
|
|
3372 | #endif |
|
|
3373 | |
|
|
3374 | #if EV_CLEANUP_ENABLE |
|
|
3375 | /* queue cleanup watchers (and execute them) */ |
|
|
3376 | if (ecb_expect_false (cleanupcnt)) |
|
|
3377 | { |
|
|
3378 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3379 | EV_INVOKE_PENDING; |
|
|
3380 | } |
|
|
3381 | #endif |
|
|
3382 | |
|
|
3383 | #if EV_CHILD_ENABLE |
|
|
3384 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3385 | { |
|
|
3386 | ev_ref (EV_A); /* child watcher */ |
|
|
3387 | ev_signal_stop (EV_A_ &childev); |
|
|
3388 | } |
|
|
3389 | #endif |
1676 | |
3390 | |
1677 | if (ev_is_active (&pipe_w)) |
3391 | if (ev_is_active (&pipe_w)) |
1678 | { |
3392 | { |
1679 | /*ev_ref (EV_A);*/ |
3393 | /*ev_ref (EV_A);*/ |
1680 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3394 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1681 | |
3395 | |
1682 | #if EV_USE_EVENTFD |
|
|
1683 | if (evfd >= 0) |
|
|
1684 | close (evfd); |
|
|
1685 | #endif |
|
|
1686 | |
|
|
1687 | if (evpipe [0] >= 0) |
|
|
1688 | { |
|
|
1689 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3396 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1690 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3397 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1691 | } |
|
|
1692 | } |
3398 | } |
1693 | |
3399 | |
1694 | #if EV_USE_SIGNALFD |
3400 | #if EV_USE_SIGNALFD |
1695 | if (ev_is_active (&sigfd_w)) |
3401 | if (ev_is_active (&sigfd_w)) |
1696 | close (sigfd); |
3402 | close (sigfd); |
1697 | #endif |
3403 | #endif |
1698 | |
3404 | |
|
|
3405 | #if EV_USE_TIMERFD |
|
|
3406 | if (ev_is_active (&timerfd_w)) |
|
|
3407 | close (timerfd); |
|
|
3408 | #endif |
|
|
3409 | |
1699 | #if EV_USE_INOTIFY |
3410 | #if EV_USE_INOTIFY |
1700 | if (fs_fd >= 0) |
3411 | if (fs_fd >= 0) |
1701 | close (fs_fd); |
3412 | close (fs_fd); |
1702 | #endif |
3413 | #endif |
1703 | |
3414 | |
1704 | if (backend_fd >= 0) |
3415 | if (backend_fd >= 0) |
1705 | close (backend_fd); |
3416 | close (backend_fd); |
1706 | |
3417 | |
|
|
3418 | #if EV_USE_IOCP |
|
|
3419 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3420 | #endif |
1707 | #if EV_USE_PORT |
3421 | #if EV_USE_PORT |
1708 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3422 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1709 | #endif |
3423 | #endif |
1710 | #if EV_USE_KQUEUE |
3424 | #if EV_USE_KQUEUE |
1711 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3425 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3426 | #endif |
|
|
3427 | #if EV_USE_IOURING |
|
|
3428 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3429 | #endif |
|
|
3430 | #if EV_USE_LINUXAIO |
|
|
3431 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1712 | #endif |
3432 | #endif |
1713 | #if EV_USE_EPOLL |
3433 | #if EV_USE_EPOLL |
1714 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3434 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1715 | #endif |
3435 | #endif |
1716 | #if EV_USE_POLL |
3436 | #if EV_USE_POLL |
1717 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3437 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1718 | #endif |
3438 | #endif |
1719 | #if EV_USE_SELECT |
3439 | #if EV_USE_SELECT |
1720 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3440 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1721 | #endif |
3441 | #endif |
1722 | |
3442 | |
1723 | for (i = NUMPRI; i--; ) |
3443 | for (i = NUMPRI; i--; ) |
1724 | { |
3444 | { |
1725 | array_free (pending, [i]); |
3445 | array_free (pending, [i]); |
… | |
… | |
1738 | array_free (periodic, EMPTY); |
3458 | array_free (periodic, EMPTY); |
1739 | #endif |
3459 | #endif |
1740 | #if EV_FORK_ENABLE |
3460 | #if EV_FORK_ENABLE |
1741 | array_free (fork, EMPTY); |
3461 | array_free (fork, EMPTY); |
1742 | #endif |
3462 | #endif |
|
|
3463 | #if EV_CLEANUP_ENABLE |
|
|
3464 | array_free (cleanup, EMPTY); |
|
|
3465 | #endif |
1743 | array_free (prepare, EMPTY); |
3466 | array_free (prepare, EMPTY); |
1744 | array_free (check, EMPTY); |
3467 | array_free (check, EMPTY); |
1745 | #if EV_ASYNC_ENABLE |
3468 | #if EV_ASYNC_ENABLE |
1746 | array_free (async, EMPTY); |
3469 | array_free (async, EMPTY); |
1747 | #endif |
3470 | #endif |
1748 | |
3471 | |
1749 | backend = 0; |
3472 | backend = 0; |
|
|
3473 | |
|
|
3474 | #if EV_MULTIPLICITY |
|
|
3475 | if (ev_is_default_loop (EV_A)) |
|
|
3476 | #endif |
|
|
3477 | ev_default_loop_ptr = 0; |
|
|
3478 | #if EV_MULTIPLICITY |
|
|
3479 | else |
|
|
3480 | ev_free (EV_A); |
|
|
3481 | #endif |
1750 | } |
3482 | } |
1751 | |
3483 | |
1752 | #if EV_USE_INOTIFY |
3484 | #if EV_USE_INOTIFY |
1753 | inline_size void infy_fork (EV_P); |
3485 | inline_size void infy_fork (EV_P); |
1754 | #endif |
3486 | #endif |
1755 | |
3487 | |
1756 | inline_size void |
3488 | inline_size void |
1757 | loop_fork (EV_P) |
3489 | loop_fork (EV_P) |
1758 | { |
3490 | { |
1759 | #if EV_USE_PORT |
3491 | #if EV_USE_PORT |
1760 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3492 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1761 | #endif |
3493 | #endif |
1762 | #if EV_USE_KQUEUE |
3494 | #if EV_USE_KQUEUE |
1763 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3495 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3496 | #endif |
|
|
3497 | #if EV_USE_IOURING |
|
|
3498 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3499 | #endif |
|
|
3500 | #if EV_USE_LINUXAIO |
|
|
3501 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1764 | #endif |
3502 | #endif |
1765 | #if EV_USE_EPOLL |
3503 | #if EV_USE_EPOLL |
1766 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3504 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1767 | #endif |
3505 | #endif |
1768 | #if EV_USE_INOTIFY |
3506 | #if EV_USE_INOTIFY |
1769 | infy_fork (EV_A); |
3507 | infy_fork (EV_A); |
1770 | #endif |
3508 | #endif |
1771 | |
3509 | |
|
|
3510 | if (postfork != 2) |
|
|
3511 | { |
|
|
3512 | #if EV_USE_SIGNALFD |
|
|
3513 | /* surprisingly, nothing needs to be done for signalfd, according to docs, it does the right thing on fork */ |
|
|
3514 | #endif |
|
|
3515 | |
|
|
3516 | #if EV_USE_TIMERFD |
|
|
3517 | if (ev_is_active (&timerfd_w)) |
|
|
3518 | { |
|
|
3519 | ev_ref (EV_A); |
|
|
3520 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3521 | |
|
|
3522 | close (timerfd); |
|
|
3523 | timerfd = -2; |
|
|
3524 | |
|
|
3525 | evtimerfd_init (EV_A); |
|
|
3526 | /* reschedule periodics, in case we missed something */ |
|
|
3527 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3528 | } |
|
|
3529 | #endif |
|
|
3530 | |
|
|
3531 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1772 | if (ev_is_active (&pipe_w)) |
3532 | if (ev_is_active (&pipe_w)) |
1773 | { |
3533 | { |
1774 | /* this "locks" the handlers against writing to the pipe */ |
3534 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1775 | /* while we modify the fd vars */ |
3535 | |
1776 | sig_pending = 1; |
|
|
1777 | #if EV_ASYNC_ENABLE |
|
|
1778 | async_pending = 1; |
|
|
1779 | #endif |
|
|
1780 | |
|
|
1781 | ev_ref (EV_A); |
3536 | ev_ref (EV_A); |
1782 | ev_io_stop (EV_A_ &pipe_w); |
3537 | ev_io_stop (EV_A_ &pipe_w); |
1783 | |
3538 | |
1784 | #if EV_USE_EVENTFD |
|
|
1785 | if (evfd >= 0) |
|
|
1786 | close (evfd); |
|
|
1787 | #endif |
|
|
1788 | |
|
|
1789 | if (evpipe [0] >= 0) |
3539 | if (evpipe [0] >= 0) |
1790 | { |
|
|
1791 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3540 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1792 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3541 | |
|
|
3542 | evpipe_init (EV_A); |
|
|
3543 | /* iterate over everything, in case we missed something before */ |
|
|
3544 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1793 | } |
3545 | } |
1794 | |
3546 | #endif |
1795 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1796 | evpipe_init (EV_A); |
|
|
1797 | /* now iterate over everything, in case we missed something */ |
|
|
1798 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1799 | #endif |
|
|
1800 | } |
3547 | } |
1801 | |
3548 | |
1802 | postfork = 0; |
3549 | postfork = 0; |
1803 | } |
3550 | } |
1804 | |
3551 | |
1805 | #if EV_MULTIPLICITY |
3552 | #if EV_MULTIPLICITY |
1806 | |
3553 | |
|
|
3554 | ecb_cold |
1807 | struct ev_loop * |
3555 | struct ev_loop * |
1808 | ev_loop_new (unsigned int flags) |
3556 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1809 | { |
3557 | { |
1810 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3558 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1811 | |
3559 | |
1812 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3560 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1813 | loop_init (EV_A_ flags); |
3561 | loop_init (EV_A_ flags); |
1814 | |
3562 | |
1815 | if (ev_backend (EV_A)) |
3563 | if (ev_backend (EV_A)) |
1816 | return EV_A; |
3564 | return EV_A; |
1817 | |
3565 | |
|
|
3566 | ev_free (EV_A); |
1818 | return 0; |
3567 | return 0; |
1819 | } |
3568 | } |
1820 | |
3569 | |
1821 | void |
|
|
1822 | ev_loop_destroy (EV_P) |
|
|
1823 | { |
|
|
1824 | loop_destroy (EV_A); |
|
|
1825 | ev_free (loop); |
|
|
1826 | } |
|
|
1827 | |
|
|
1828 | void |
|
|
1829 | ev_loop_fork (EV_P) |
|
|
1830 | { |
|
|
1831 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1832 | } |
|
|
1833 | #endif /* multiplicity */ |
3570 | #endif /* multiplicity */ |
1834 | |
3571 | |
1835 | #if EV_VERIFY |
3572 | #if EV_VERIFY |
1836 | static void noinline |
3573 | ecb_noinline ecb_cold |
|
|
3574 | static void |
1837 | verify_watcher (EV_P_ W w) |
3575 | verify_watcher (EV_P_ W w) |
1838 | { |
3576 | { |
1839 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3577 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1840 | |
3578 | |
1841 | if (w->pending) |
3579 | if (w->pending) |
1842 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3580 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1843 | } |
3581 | } |
1844 | |
3582 | |
1845 | static void noinline |
3583 | ecb_noinline ecb_cold |
|
|
3584 | static void |
1846 | verify_heap (EV_P_ ANHE *heap, int N) |
3585 | verify_heap (EV_P_ ANHE *heap, int N) |
1847 | { |
3586 | { |
1848 | int i; |
3587 | int i; |
1849 | |
3588 | |
1850 | for (i = HEAP0; i < N + HEAP0; ++i) |
3589 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1855 | |
3594 | |
1856 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3595 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1857 | } |
3596 | } |
1858 | } |
3597 | } |
1859 | |
3598 | |
1860 | static void noinline |
3599 | ecb_noinline ecb_cold |
|
|
3600 | static void |
1861 | array_verify (EV_P_ W *ws, int cnt) |
3601 | array_verify (EV_P_ W *ws, int cnt) |
1862 | { |
3602 | { |
1863 | while (cnt--) |
3603 | while (cnt--) |
1864 | { |
3604 | { |
1865 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3605 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1867 | } |
3607 | } |
1868 | } |
3608 | } |
1869 | #endif |
3609 | #endif |
1870 | |
3610 | |
1871 | #if EV_FEATURE_API |
3611 | #if EV_FEATURE_API |
1872 | void |
3612 | void ecb_cold |
1873 | ev_verify (EV_P) |
3613 | ev_verify (EV_P) EV_NOEXCEPT |
1874 | { |
3614 | { |
1875 | #if EV_VERIFY |
3615 | #if EV_VERIFY |
1876 | int i; |
3616 | int i; |
1877 | WL w; |
3617 | WL w, w2; |
1878 | |
3618 | |
1879 | assert (activecnt >= -1); |
3619 | assert (activecnt >= -1); |
1880 | |
3620 | |
1881 | assert (fdchangemax >= fdchangecnt); |
3621 | assert (fdchangemax >= fdchangecnt); |
1882 | for (i = 0; i < fdchangecnt; ++i) |
3622 | for (i = 0; i < fdchangecnt; ++i) |
1883 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3623 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1884 | |
3624 | |
1885 | assert (anfdmax >= 0); |
3625 | assert (anfdmax >= 0); |
1886 | for (i = 0; i < anfdmax; ++i) |
3626 | for (i = 0; i < anfdmax; ++i) |
|
|
3627 | { |
|
|
3628 | int j = 0; |
|
|
3629 | |
1887 | for (w = anfds [i].head; w; w = w->next) |
3630 | for (w = w2 = anfds [i].head; w; w = w->next) |
1888 | { |
3631 | { |
1889 | verify_watcher (EV_A_ (W)w); |
3632 | verify_watcher (EV_A_ (W)w); |
|
|
3633 | |
|
|
3634 | if (j++ & 1) |
|
|
3635 | { |
|
|
3636 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3637 | w2 = w2->next; |
|
|
3638 | } |
|
|
3639 | |
1890 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3640 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1891 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3641 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1892 | } |
3642 | } |
|
|
3643 | } |
1893 | |
3644 | |
1894 | assert (timermax >= timercnt); |
3645 | assert (timermax >= timercnt); |
1895 | verify_heap (EV_A_ timers, timercnt); |
3646 | verify_heap (EV_A_ timers, timercnt); |
1896 | |
3647 | |
1897 | #if EV_PERIODIC_ENABLE |
3648 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1912 | #if EV_FORK_ENABLE |
3663 | #if EV_FORK_ENABLE |
1913 | assert (forkmax >= forkcnt); |
3664 | assert (forkmax >= forkcnt); |
1914 | array_verify (EV_A_ (W *)forks, forkcnt); |
3665 | array_verify (EV_A_ (W *)forks, forkcnt); |
1915 | #endif |
3666 | #endif |
1916 | |
3667 | |
|
|
3668 | #if EV_CLEANUP_ENABLE |
|
|
3669 | assert (cleanupmax >= cleanupcnt); |
|
|
3670 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3671 | #endif |
|
|
3672 | |
1917 | #if EV_ASYNC_ENABLE |
3673 | #if EV_ASYNC_ENABLE |
1918 | assert (asyncmax >= asynccnt); |
3674 | assert (asyncmax >= asynccnt); |
1919 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3675 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1920 | #endif |
3676 | #endif |
1921 | |
3677 | |
… | |
… | |
1938 | #endif |
3694 | #endif |
1939 | } |
3695 | } |
1940 | #endif |
3696 | #endif |
1941 | |
3697 | |
1942 | #if EV_MULTIPLICITY |
3698 | #if EV_MULTIPLICITY |
|
|
3699 | ecb_cold |
1943 | struct ev_loop * |
3700 | struct ev_loop * |
1944 | ev_default_loop_init (unsigned int flags) |
|
|
1945 | #else |
3701 | #else |
1946 | int |
3702 | int |
|
|
3703 | #endif |
1947 | ev_default_loop (unsigned int flags) |
3704 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1948 | #endif |
|
|
1949 | { |
3705 | { |
1950 | if (!ev_default_loop_ptr) |
3706 | if (!ev_default_loop_ptr) |
1951 | { |
3707 | { |
1952 | #if EV_MULTIPLICITY |
3708 | #if EV_MULTIPLICITY |
1953 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3709 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1972 | |
3728 | |
1973 | return ev_default_loop_ptr; |
3729 | return ev_default_loop_ptr; |
1974 | } |
3730 | } |
1975 | |
3731 | |
1976 | void |
3732 | void |
1977 | ev_default_destroy (void) |
3733 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1978 | { |
3734 | { |
1979 | #if EV_MULTIPLICITY |
3735 | postfork = 1; |
1980 | EV_P = ev_default_loop_ptr; |
|
|
1981 | #endif |
|
|
1982 | |
|
|
1983 | ev_default_loop_ptr = 0; |
|
|
1984 | |
|
|
1985 | #if EV_CHILD_ENABLE |
|
|
1986 | ev_ref (EV_A); /* child watcher */ |
|
|
1987 | ev_signal_stop (EV_A_ &childev); |
|
|
1988 | #endif |
|
|
1989 | |
|
|
1990 | loop_destroy (EV_A); |
|
|
1991 | } |
|
|
1992 | |
|
|
1993 | void |
|
|
1994 | ev_default_fork (void) |
|
|
1995 | { |
|
|
1996 | #if EV_MULTIPLICITY |
|
|
1997 | EV_P = ev_default_loop_ptr; |
|
|
1998 | #endif |
|
|
1999 | |
|
|
2000 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
2001 | } |
3736 | } |
2002 | |
3737 | |
2003 | /*****************************************************************************/ |
3738 | /*****************************************************************************/ |
2004 | |
3739 | |
2005 | void |
3740 | void |
… | |
… | |
2007 | { |
3742 | { |
2008 | EV_CB_INVOKE ((W)w, revents); |
3743 | EV_CB_INVOKE ((W)w, revents); |
2009 | } |
3744 | } |
2010 | |
3745 | |
2011 | unsigned int |
3746 | unsigned int |
2012 | ev_pending_count (EV_P) |
3747 | ev_pending_count (EV_P) EV_NOEXCEPT |
2013 | { |
3748 | { |
2014 | int pri; |
3749 | int pri; |
2015 | unsigned int count = 0; |
3750 | unsigned int count = 0; |
2016 | |
3751 | |
2017 | for (pri = NUMPRI; pri--; ) |
3752 | for (pri = NUMPRI; pri--; ) |
2018 | count += pendingcnt [pri]; |
3753 | count += pendingcnt [pri]; |
2019 | |
3754 | |
2020 | return count; |
3755 | return count; |
2021 | } |
3756 | } |
2022 | |
3757 | |
2023 | void noinline |
3758 | ecb_noinline |
|
|
3759 | void |
2024 | ev_invoke_pending (EV_P) |
3760 | ev_invoke_pending (EV_P) |
2025 | { |
3761 | { |
2026 | int pri; |
3762 | pendingpri = NUMPRI; |
2027 | |
3763 | |
2028 | for (pri = NUMPRI; pri--; ) |
3764 | do |
|
|
3765 | { |
|
|
3766 | --pendingpri; |
|
|
3767 | |
|
|
3768 | /* pendingpri possibly gets modified in the inner loop */ |
2029 | while (pendingcnt [pri]) |
3769 | while (pendingcnt [pendingpri]) |
2030 | { |
3770 | { |
2031 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3771 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2032 | |
3772 | |
2033 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2034 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2035 | |
|
|
2036 | p->w->pending = 0; |
3773 | p->w->pending = 0; |
2037 | EV_CB_INVOKE (p->w, p->events); |
3774 | EV_CB_INVOKE (p->w, p->events); |
2038 | EV_FREQUENT_CHECK; |
3775 | EV_FREQUENT_CHECK; |
2039 | } |
3776 | } |
|
|
3777 | } |
|
|
3778 | while (pendingpri); |
2040 | } |
3779 | } |
2041 | |
3780 | |
2042 | #if EV_IDLE_ENABLE |
3781 | #if EV_IDLE_ENABLE |
2043 | /* make idle watchers pending. this handles the "call-idle */ |
3782 | /* make idle watchers pending. this handles the "call-idle */ |
2044 | /* only when higher priorities are idle" logic */ |
3783 | /* only when higher priorities are idle" logic */ |
2045 | inline_size void |
3784 | inline_size void |
2046 | idle_reify (EV_P) |
3785 | idle_reify (EV_P) |
2047 | { |
3786 | { |
2048 | if (expect_false (idleall)) |
3787 | if (ecb_expect_false (idleall)) |
2049 | { |
3788 | { |
2050 | int pri; |
3789 | int pri; |
2051 | |
3790 | |
2052 | for (pri = NUMPRI; pri--; ) |
3791 | for (pri = NUMPRI; pri--; ) |
2053 | { |
3792 | { |
… | |
… | |
2083 | { |
3822 | { |
2084 | ev_at (w) += w->repeat; |
3823 | ev_at (w) += w->repeat; |
2085 | if (ev_at (w) < mn_now) |
3824 | if (ev_at (w) < mn_now) |
2086 | ev_at (w) = mn_now; |
3825 | ev_at (w) = mn_now; |
2087 | |
3826 | |
2088 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3827 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2089 | |
3828 | |
2090 | ANHE_at_cache (timers [HEAP0]); |
3829 | ANHE_at_cache (timers [HEAP0]); |
2091 | downheap (timers, timercnt, HEAP0); |
3830 | downheap (timers, timercnt, HEAP0); |
2092 | } |
3831 | } |
2093 | else |
3832 | else |
… | |
… | |
2096 | EV_FREQUENT_CHECK; |
3835 | EV_FREQUENT_CHECK; |
2097 | feed_reverse (EV_A_ (W)w); |
3836 | feed_reverse (EV_A_ (W)w); |
2098 | } |
3837 | } |
2099 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3838 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2100 | |
3839 | |
2101 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3840 | feed_reverse_done (EV_A_ EV_TIMER); |
2102 | } |
3841 | } |
2103 | } |
3842 | } |
2104 | |
3843 | |
2105 | #if EV_PERIODIC_ENABLE |
3844 | #if EV_PERIODIC_ENABLE |
|
|
3845 | |
|
|
3846 | ecb_noinline |
|
|
3847 | static void |
|
|
3848 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3849 | { |
|
|
3850 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3851 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3852 | |
|
|
3853 | /* the above almost always errs on the low side */ |
|
|
3854 | while (at <= ev_rt_now) |
|
|
3855 | { |
|
|
3856 | ev_tstamp nat = at + w->interval; |
|
|
3857 | |
|
|
3858 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3859 | if (ecb_expect_false (nat == at)) |
|
|
3860 | { |
|
|
3861 | at = ev_rt_now; |
|
|
3862 | break; |
|
|
3863 | } |
|
|
3864 | |
|
|
3865 | at = nat; |
|
|
3866 | } |
|
|
3867 | |
|
|
3868 | ev_at (w) = at; |
|
|
3869 | } |
|
|
3870 | |
2106 | /* make periodics pending */ |
3871 | /* make periodics pending */ |
2107 | inline_size void |
3872 | inline_size void |
2108 | periodics_reify (EV_P) |
3873 | periodics_reify (EV_P) |
2109 | { |
3874 | { |
2110 | EV_FREQUENT_CHECK; |
3875 | EV_FREQUENT_CHECK; |
2111 | |
3876 | |
2112 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3877 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2113 | { |
3878 | { |
2114 | int feed_count = 0; |
|
|
2115 | |
|
|
2116 | do |
3879 | do |
2117 | { |
3880 | { |
2118 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3881 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2119 | |
3882 | |
2120 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3883 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2129 | ANHE_at_cache (periodics [HEAP0]); |
3892 | ANHE_at_cache (periodics [HEAP0]); |
2130 | downheap (periodics, periodiccnt, HEAP0); |
3893 | downheap (periodics, periodiccnt, HEAP0); |
2131 | } |
3894 | } |
2132 | else if (w->interval) |
3895 | else if (w->interval) |
2133 | { |
3896 | { |
2134 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3897 | periodic_recalc (EV_A_ w); |
2135 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2136 | /* this might happen because of floating point inexactness */ |
|
|
2137 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2138 | { |
|
|
2139 | ev_at (w) += w->interval; |
|
|
2140 | |
|
|
2141 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2142 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2143 | /* has effectively asked to get triggered more often than possible */ |
|
|
2144 | if (ev_at (w) < ev_rt_now) |
|
|
2145 | ev_at (w) = ev_rt_now; |
|
|
2146 | } |
|
|
2147 | |
|
|
2148 | ANHE_at_cache (periodics [HEAP0]); |
3898 | ANHE_at_cache (periodics [HEAP0]); |
2149 | downheap (periodics, periodiccnt, HEAP0); |
3899 | downheap (periodics, periodiccnt, HEAP0); |
2150 | } |
3900 | } |
2151 | else |
3901 | else |
2152 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3902 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2159 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3909 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2160 | } |
3910 | } |
2161 | } |
3911 | } |
2162 | |
3912 | |
2163 | /* simply recalculate all periodics */ |
3913 | /* simply recalculate all periodics */ |
2164 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3914 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2165 | static void noinline |
3915 | ecb_noinline ecb_cold |
|
|
3916 | static void |
2166 | periodics_reschedule (EV_P) |
3917 | periodics_reschedule (EV_P) |
2167 | { |
3918 | { |
2168 | int i; |
3919 | int i; |
2169 | |
3920 | |
2170 | /* adjust periodics after time jump */ |
3921 | /* adjust periodics after time jump */ |
… | |
… | |
2173 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3924 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2174 | |
3925 | |
2175 | if (w->reschedule_cb) |
3926 | if (w->reschedule_cb) |
2176 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3927 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2177 | else if (w->interval) |
3928 | else if (w->interval) |
2178 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3929 | periodic_recalc (EV_A_ w); |
2179 | |
3930 | |
2180 | ANHE_at_cache (periodics [i]); |
3931 | ANHE_at_cache (periodics [i]); |
2181 | } |
3932 | } |
2182 | |
3933 | |
2183 | reheap (periodics, periodiccnt); |
3934 | reheap (periodics, periodiccnt); |
2184 | } |
3935 | } |
2185 | #endif |
3936 | #endif |
2186 | |
3937 | |
2187 | /* adjust all timers by a given offset */ |
3938 | /* adjust all timers by a given offset */ |
2188 | static void noinline |
3939 | ecb_noinline ecb_cold |
|
|
3940 | static void |
2189 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3941 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2190 | { |
3942 | { |
2191 | int i; |
3943 | int i; |
2192 | |
3944 | |
2193 | for (i = 0; i < timercnt; ++i) |
3945 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2202 | /* also detect if there was a timejump, and act accordingly */ |
3954 | /* also detect if there was a timejump, and act accordingly */ |
2203 | inline_speed void |
3955 | inline_speed void |
2204 | time_update (EV_P_ ev_tstamp max_block) |
3956 | time_update (EV_P_ ev_tstamp max_block) |
2205 | { |
3957 | { |
2206 | #if EV_USE_MONOTONIC |
3958 | #if EV_USE_MONOTONIC |
2207 | if (expect_true (have_monotonic)) |
3959 | if (ecb_expect_true (have_monotonic)) |
2208 | { |
3960 | { |
2209 | int i; |
3961 | int i; |
2210 | ev_tstamp odiff = rtmn_diff; |
3962 | ev_tstamp odiff = rtmn_diff; |
2211 | |
3963 | |
2212 | mn_now = get_clock (); |
3964 | mn_now = get_clock (); |
2213 | |
3965 | |
2214 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3966 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2215 | /* interpolate in the meantime */ |
3967 | /* interpolate in the meantime */ |
2216 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3968 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2217 | { |
3969 | { |
2218 | ev_rt_now = rtmn_diff + mn_now; |
3970 | ev_rt_now = rtmn_diff + mn_now; |
2219 | return; |
3971 | return; |
2220 | } |
3972 | } |
2221 | |
3973 | |
… | |
… | |
2230 | * doesn't hurt either as we only do this on time-jumps or |
3982 | * doesn't hurt either as we only do this on time-jumps or |
2231 | * in the unlikely event of having been preempted here. |
3983 | * in the unlikely event of having been preempted here. |
2232 | */ |
3984 | */ |
2233 | for (i = 4; --i; ) |
3985 | for (i = 4; --i; ) |
2234 | { |
3986 | { |
|
|
3987 | ev_tstamp diff; |
2235 | rtmn_diff = ev_rt_now - mn_now; |
3988 | rtmn_diff = ev_rt_now - mn_now; |
2236 | |
3989 | |
2237 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3990 | diff = odiff - rtmn_diff; |
|
|
3991 | |
|
|
3992 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2238 | return; /* all is well */ |
3993 | return; /* all is well */ |
2239 | |
3994 | |
2240 | ev_rt_now = ev_time (); |
3995 | ev_rt_now = ev_time (); |
2241 | mn_now = get_clock (); |
3996 | mn_now = get_clock (); |
2242 | now_floor = mn_now; |
3997 | now_floor = mn_now; |
… | |
… | |
2251 | else |
4006 | else |
2252 | #endif |
4007 | #endif |
2253 | { |
4008 | { |
2254 | ev_rt_now = ev_time (); |
4009 | ev_rt_now = ev_time (); |
2255 | |
4010 | |
2256 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
4011 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2257 | { |
4012 | { |
2258 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
4013 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2259 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
4014 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2260 | #if EV_PERIODIC_ENABLE |
4015 | #if EV_PERIODIC_ENABLE |
2261 | periodics_reschedule (EV_A); |
4016 | periodics_reschedule (EV_A); |
… | |
… | |
2264 | |
4019 | |
2265 | mn_now = ev_rt_now; |
4020 | mn_now = ev_rt_now; |
2266 | } |
4021 | } |
2267 | } |
4022 | } |
2268 | |
4023 | |
2269 | void |
4024 | int |
2270 | ev_loop (EV_P_ int flags) |
4025 | ev_run (EV_P_ int flags) |
2271 | { |
4026 | { |
2272 | #if EV_FEATURE_API |
4027 | #if EV_FEATURE_API |
2273 | ++loop_depth; |
4028 | ++loop_depth; |
2274 | #endif |
4029 | #endif |
2275 | |
4030 | |
2276 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
4031 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2277 | |
4032 | |
2278 | loop_done = EVUNLOOP_CANCEL; |
4033 | loop_done = EVBREAK_CANCEL; |
2279 | |
4034 | |
2280 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
4035 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2281 | |
4036 | |
2282 | do |
4037 | do |
2283 | { |
4038 | { |
2284 | #if EV_VERIFY >= 2 |
4039 | #if EV_VERIFY >= 2 |
2285 | ev_verify (EV_A); |
4040 | ev_verify (EV_A); |
2286 | #endif |
4041 | #endif |
2287 | |
4042 | |
2288 | #ifndef _WIN32 |
4043 | #ifndef _WIN32 |
2289 | if (expect_false (curpid)) /* penalise the forking check even more */ |
4044 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2290 | if (expect_false (getpid () != curpid)) |
4045 | if (ecb_expect_false (getpid () != curpid)) |
2291 | { |
4046 | { |
2292 | curpid = getpid (); |
4047 | curpid = getpid (); |
2293 | postfork = 1; |
4048 | postfork = 1; |
2294 | } |
4049 | } |
2295 | #endif |
4050 | #endif |
2296 | |
4051 | |
2297 | #if EV_FORK_ENABLE |
4052 | #if EV_FORK_ENABLE |
2298 | /* we might have forked, so queue fork handlers */ |
4053 | /* we might have forked, so queue fork handlers */ |
2299 | if (expect_false (postfork)) |
4054 | if (ecb_expect_false (postfork)) |
2300 | if (forkcnt) |
4055 | if (forkcnt) |
2301 | { |
4056 | { |
2302 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
4057 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2303 | EV_INVOKE_PENDING; |
4058 | EV_INVOKE_PENDING; |
2304 | } |
4059 | } |
2305 | #endif |
4060 | #endif |
2306 | |
4061 | |
2307 | #if EV_PREPARE_ENABLE |
4062 | #if EV_PREPARE_ENABLE |
2308 | /* queue prepare watchers (and execute them) */ |
4063 | /* queue prepare watchers (and execute them) */ |
2309 | if (expect_false (preparecnt)) |
4064 | if (ecb_expect_false (preparecnt)) |
2310 | { |
4065 | { |
2311 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
4066 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2312 | EV_INVOKE_PENDING; |
4067 | EV_INVOKE_PENDING; |
2313 | } |
4068 | } |
2314 | #endif |
4069 | #endif |
2315 | |
4070 | |
2316 | if (expect_false (loop_done)) |
4071 | if (ecb_expect_false (loop_done)) |
2317 | break; |
4072 | break; |
2318 | |
4073 | |
2319 | /* we might have forked, so reify kernel state if necessary */ |
4074 | /* we might have forked, so reify kernel state if necessary */ |
2320 | if (expect_false (postfork)) |
4075 | if (ecb_expect_false (postfork)) |
2321 | loop_fork (EV_A); |
4076 | loop_fork (EV_A); |
2322 | |
4077 | |
2323 | /* update fd-related kernel structures */ |
4078 | /* update fd-related kernel structures */ |
2324 | fd_reify (EV_A); |
4079 | fd_reify (EV_A); |
2325 | |
4080 | |
2326 | /* calculate blocking time */ |
4081 | /* calculate blocking time */ |
2327 | { |
4082 | { |
2328 | ev_tstamp waittime = 0.; |
4083 | ev_tstamp waittime = 0.; |
2329 | ev_tstamp sleeptime = 0.; |
4084 | ev_tstamp sleeptime = 0.; |
2330 | |
4085 | |
|
|
4086 | /* remember old timestamp for io_blocktime calculation */ |
|
|
4087 | ev_tstamp prev_mn_now = mn_now; |
|
|
4088 | |
|
|
4089 | /* update time to cancel out callback processing overhead */ |
|
|
4090 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
|
|
4091 | |
|
|
4092 | /* from now on, we want a pipe-wake-up */ |
|
|
4093 | pipe_write_wanted = 1; |
|
|
4094 | |
|
|
4095 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
4096 | |
2331 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
4097 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2332 | { |
4098 | { |
2333 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2334 | ev_tstamp prev_mn_now = mn_now; |
|
|
2335 | |
|
|
2336 | /* update time to cancel out callback processing overhead */ |
|
|
2337 | time_update (EV_A_ 1e100); |
|
|
2338 | |
|
|
2339 | waittime = MAX_BLOCKTIME; |
4099 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
|
|
4100 | |
|
|
4101 | #if EV_USE_MONOTONIC |
|
|
4102 | if (ecb_expect_true (have_monotonic)) |
|
|
4103 | { |
|
|
4104 | #if EV_USE_TIMERFD |
|
|
4105 | /* sleep a lot longer when we can reliably detect timejumps */ |
|
|
4106 | if (ecb_expect_true (timerfd != -1)) |
|
|
4107 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4108 | #endif |
|
|
4109 | #if !EV_PERIODIC_ENABLE |
|
|
4110 | /* without periodics but with monotonic clock there is no need */ |
|
|
4111 | /* for any time jump detection, so sleep longer */ |
|
|
4112 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4113 | #endif |
|
|
4114 | } |
|
|
4115 | #endif |
2340 | |
4116 | |
2341 | if (timercnt) |
4117 | if (timercnt) |
2342 | { |
4118 | { |
2343 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
4119 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2344 | if (waittime > to) waittime = to; |
4120 | if (waittime > to) waittime = to; |
2345 | } |
4121 | } |
2346 | |
4122 | |
2347 | #if EV_PERIODIC_ENABLE |
4123 | #if EV_PERIODIC_ENABLE |
2348 | if (periodiccnt) |
4124 | if (periodiccnt) |
2349 | { |
4125 | { |
2350 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
4126 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2351 | if (waittime > to) waittime = to; |
4127 | if (waittime > to) waittime = to; |
2352 | } |
4128 | } |
2353 | #endif |
4129 | #endif |
2354 | |
4130 | |
2355 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
4131 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2356 | if (expect_false (waittime < timeout_blocktime)) |
4132 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2357 | waittime = timeout_blocktime; |
4133 | waittime = timeout_blocktime; |
2358 | |
4134 | |
|
|
4135 | /* now there are two more special cases left, either we have |
|
|
4136 | * already-expired timers, so we should not sleep, or we have timers |
|
|
4137 | * that expire very soon, in which case we need to wait for a minimum |
|
|
4138 | * amount of time for some event loop backends. |
|
|
4139 | */ |
|
|
4140 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
4141 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
4142 | ? EV_TS_CONST (0.) |
|
|
4143 | : backend_mintime; |
|
|
4144 | |
2359 | /* extra check because io_blocktime is commonly 0 */ |
4145 | /* extra check because io_blocktime is commonly 0 */ |
2360 | if (expect_false (io_blocktime)) |
4146 | if (ecb_expect_false (io_blocktime)) |
2361 | { |
4147 | { |
2362 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
4148 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2363 | |
4149 | |
2364 | if (sleeptime > waittime - backend_fudge) |
4150 | if (sleeptime > waittime - backend_mintime) |
2365 | sleeptime = waittime - backend_fudge; |
4151 | sleeptime = waittime - backend_mintime; |
2366 | |
4152 | |
2367 | if (expect_true (sleeptime > 0.)) |
4153 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
2368 | { |
4154 | { |
2369 | ev_sleep (sleeptime); |
4155 | ev_sleep (sleeptime); |
2370 | waittime -= sleeptime; |
4156 | waittime -= sleeptime; |
2371 | } |
4157 | } |
2372 | } |
4158 | } |
2373 | } |
4159 | } |
2374 | |
4160 | |
2375 | #if EV_FEATURE_API |
4161 | #if EV_FEATURE_API |
2376 | ++loop_count; |
4162 | ++loop_count; |
2377 | #endif |
4163 | #endif |
2378 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
4164 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2379 | backend_poll (EV_A_ waittime); |
4165 | backend_poll (EV_A_ waittime); |
2380 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
4166 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
4167 | |
|
|
4168 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
4169 | |
|
|
4170 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
4171 | if (pipe_write_skipped) |
|
|
4172 | { |
|
|
4173 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
4174 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
4175 | } |
2381 | |
4176 | |
2382 | /* update ev_rt_now, do magic */ |
4177 | /* update ev_rt_now, do magic */ |
2383 | time_update (EV_A_ waittime + sleeptime); |
4178 | time_update (EV_A_ waittime + sleeptime); |
2384 | } |
4179 | } |
2385 | |
4180 | |
… | |
… | |
2394 | idle_reify (EV_A); |
4189 | idle_reify (EV_A); |
2395 | #endif |
4190 | #endif |
2396 | |
4191 | |
2397 | #if EV_CHECK_ENABLE |
4192 | #if EV_CHECK_ENABLE |
2398 | /* queue check watchers, to be executed first */ |
4193 | /* queue check watchers, to be executed first */ |
2399 | if (expect_false (checkcnt)) |
4194 | if (ecb_expect_false (checkcnt)) |
2400 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4195 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2401 | #endif |
4196 | #endif |
2402 | |
4197 | |
2403 | EV_INVOKE_PENDING; |
4198 | EV_INVOKE_PENDING; |
2404 | } |
4199 | } |
2405 | while (expect_true ( |
4200 | while (ecb_expect_true ( |
2406 | activecnt |
4201 | activecnt |
2407 | && !loop_done |
4202 | && !loop_done |
2408 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
4203 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2409 | )); |
4204 | )); |
2410 | |
4205 | |
2411 | if (loop_done == EVUNLOOP_ONE) |
4206 | if (loop_done == EVBREAK_ONE) |
2412 | loop_done = EVUNLOOP_CANCEL; |
4207 | loop_done = EVBREAK_CANCEL; |
2413 | |
4208 | |
2414 | #if EV_FEATURE_API |
4209 | #if EV_FEATURE_API |
2415 | --loop_depth; |
4210 | --loop_depth; |
2416 | #endif |
4211 | #endif |
|
|
4212 | |
|
|
4213 | return activecnt; |
2417 | } |
4214 | } |
2418 | |
4215 | |
2419 | void |
4216 | void |
2420 | ev_unloop (EV_P_ int how) |
4217 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2421 | { |
4218 | { |
2422 | loop_done = how; |
4219 | loop_done = how; |
2423 | } |
4220 | } |
2424 | |
4221 | |
2425 | void |
4222 | void |
2426 | ev_ref (EV_P) |
4223 | ev_ref (EV_P) EV_NOEXCEPT |
2427 | { |
4224 | { |
2428 | ++activecnt; |
4225 | ++activecnt; |
2429 | } |
4226 | } |
2430 | |
4227 | |
2431 | void |
4228 | void |
2432 | ev_unref (EV_P) |
4229 | ev_unref (EV_P) EV_NOEXCEPT |
2433 | { |
4230 | { |
2434 | --activecnt; |
4231 | --activecnt; |
2435 | } |
4232 | } |
2436 | |
4233 | |
2437 | void |
4234 | void |
2438 | ev_now_update (EV_P) |
4235 | ev_now_update (EV_P) EV_NOEXCEPT |
2439 | { |
4236 | { |
2440 | time_update (EV_A_ 1e100); |
4237 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2441 | } |
4238 | } |
2442 | |
4239 | |
2443 | void |
4240 | void |
2444 | ev_suspend (EV_P) |
4241 | ev_suspend (EV_P) EV_NOEXCEPT |
2445 | { |
4242 | { |
2446 | ev_now_update (EV_A); |
4243 | ev_now_update (EV_A); |
2447 | } |
4244 | } |
2448 | |
4245 | |
2449 | void |
4246 | void |
2450 | ev_resume (EV_P) |
4247 | ev_resume (EV_P) EV_NOEXCEPT |
2451 | { |
4248 | { |
2452 | ev_tstamp mn_prev = mn_now; |
4249 | ev_tstamp mn_prev = mn_now; |
2453 | |
4250 | |
2454 | ev_now_update (EV_A); |
4251 | ev_now_update (EV_A); |
2455 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4252 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2472 | inline_size void |
4269 | inline_size void |
2473 | wlist_del (WL *head, WL elem) |
4270 | wlist_del (WL *head, WL elem) |
2474 | { |
4271 | { |
2475 | while (*head) |
4272 | while (*head) |
2476 | { |
4273 | { |
2477 | if (expect_true (*head == elem)) |
4274 | if (ecb_expect_true (*head == elem)) |
2478 | { |
4275 | { |
2479 | *head = elem->next; |
4276 | *head = elem->next; |
2480 | break; |
4277 | break; |
2481 | } |
4278 | } |
2482 | |
4279 | |
… | |
… | |
2494 | w->pending = 0; |
4291 | w->pending = 0; |
2495 | } |
4292 | } |
2496 | } |
4293 | } |
2497 | |
4294 | |
2498 | int |
4295 | int |
2499 | ev_clear_pending (EV_P_ void *w) |
4296 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2500 | { |
4297 | { |
2501 | W w_ = (W)w; |
4298 | W w_ = (W)w; |
2502 | int pending = w_->pending; |
4299 | int pending = w_->pending; |
2503 | |
4300 | |
2504 | if (expect_true (pending)) |
4301 | if (ecb_expect_true (pending)) |
2505 | { |
4302 | { |
2506 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4303 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2507 | p->w = (W)&pending_w; |
4304 | p->w = (W)&pending_w; |
2508 | w_->pending = 0; |
4305 | w_->pending = 0; |
2509 | return p->events; |
4306 | return p->events; |
… | |
… | |
2536 | w->active = 0; |
4333 | w->active = 0; |
2537 | } |
4334 | } |
2538 | |
4335 | |
2539 | /*****************************************************************************/ |
4336 | /*****************************************************************************/ |
2540 | |
4337 | |
2541 | void noinline |
4338 | ecb_noinline |
|
|
4339 | void |
2542 | ev_io_start (EV_P_ ev_io *w) |
4340 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2543 | { |
4341 | { |
2544 | int fd = w->fd; |
4342 | int fd = w->fd; |
2545 | |
4343 | |
2546 | if (expect_false (ev_is_active (w))) |
4344 | if (ecb_expect_false (ev_is_active (w))) |
2547 | return; |
4345 | return; |
2548 | |
4346 | |
2549 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4347 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2550 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4348 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2551 | |
4349 | |
|
|
4350 | #if EV_VERIFY >= 2 |
|
|
4351 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4352 | #endif |
2552 | EV_FREQUENT_CHECK; |
4353 | EV_FREQUENT_CHECK; |
2553 | |
4354 | |
2554 | ev_start (EV_A_ (W)w, 1); |
4355 | ev_start (EV_A_ (W)w, 1); |
2555 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4356 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2556 | wlist_add (&anfds[fd].head, (WL)w); |
4357 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4358 | |
|
|
4359 | /* common bug, apparently */ |
|
|
4360 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2557 | |
4361 | |
2558 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4362 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2559 | w->events &= ~EV__IOFDSET; |
4363 | w->events &= ~EV__IOFDSET; |
2560 | |
4364 | |
2561 | EV_FREQUENT_CHECK; |
4365 | EV_FREQUENT_CHECK; |
2562 | } |
4366 | } |
2563 | |
4367 | |
2564 | void noinline |
4368 | ecb_noinline |
|
|
4369 | void |
2565 | ev_io_stop (EV_P_ ev_io *w) |
4370 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2566 | { |
4371 | { |
2567 | clear_pending (EV_A_ (W)w); |
4372 | clear_pending (EV_A_ (W)w); |
2568 | if (expect_false (!ev_is_active (w))) |
4373 | if (ecb_expect_false (!ev_is_active (w))) |
2569 | return; |
4374 | return; |
2570 | |
4375 | |
2571 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4376 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2572 | |
4377 | |
|
|
4378 | #if EV_VERIFY >= 2 |
|
|
4379 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4380 | #endif |
2573 | EV_FREQUENT_CHECK; |
4381 | EV_FREQUENT_CHECK; |
2574 | |
4382 | |
2575 | wlist_del (&anfds[w->fd].head, (WL)w); |
4383 | wlist_del (&anfds[w->fd].head, (WL)w); |
2576 | ev_stop (EV_A_ (W)w); |
4384 | ev_stop (EV_A_ (W)w); |
2577 | |
4385 | |
2578 | fd_change (EV_A_ w->fd, 1); |
4386 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2579 | |
4387 | |
2580 | EV_FREQUENT_CHECK; |
4388 | EV_FREQUENT_CHECK; |
2581 | } |
4389 | } |
2582 | |
4390 | |
2583 | void noinline |
4391 | ecb_noinline |
|
|
4392 | void |
2584 | ev_timer_start (EV_P_ ev_timer *w) |
4393 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2585 | { |
4394 | { |
2586 | if (expect_false (ev_is_active (w))) |
4395 | if (ecb_expect_false (ev_is_active (w))) |
2587 | return; |
4396 | return; |
2588 | |
4397 | |
2589 | ev_at (w) += mn_now; |
4398 | ev_at (w) += mn_now; |
2590 | |
4399 | |
2591 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4400 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2592 | |
4401 | |
2593 | EV_FREQUENT_CHECK; |
4402 | EV_FREQUENT_CHECK; |
2594 | |
4403 | |
2595 | ++timercnt; |
4404 | ++timercnt; |
2596 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4405 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2597 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4406 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2598 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4407 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2599 | ANHE_at_cache (timers [ev_active (w)]); |
4408 | ANHE_at_cache (timers [ev_active (w)]); |
2600 | upheap (timers, ev_active (w)); |
4409 | upheap (timers, ev_active (w)); |
2601 | |
4410 | |
2602 | EV_FREQUENT_CHECK; |
4411 | EV_FREQUENT_CHECK; |
2603 | |
4412 | |
2604 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4413 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2605 | } |
4414 | } |
2606 | |
4415 | |
2607 | void noinline |
4416 | ecb_noinline |
|
|
4417 | void |
2608 | ev_timer_stop (EV_P_ ev_timer *w) |
4418 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2609 | { |
4419 | { |
2610 | clear_pending (EV_A_ (W)w); |
4420 | clear_pending (EV_A_ (W)w); |
2611 | if (expect_false (!ev_is_active (w))) |
4421 | if (ecb_expect_false (!ev_is_active (w))) |
2612 | return; |
4422 | return; |
2613 | |
4423 | |
2614 | EV_FREQUENT_CHECK; |
4424 | EV_FREQUENT_CHECK; |
2615 | |
4425 | |
2616 | { |
4426 | { |
… | |
… | |
2618 | |
4428 | |
2619 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4429 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2620 | |
4430 | |
2621 | --timercnt; |
4431 | --timercnt; |
2622 | |
4432 | |
2623 | if (expect_true (active < timercnt + HEAP0)) |
4433 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2624 | { |
4434 | { |
2625 | timers [active] = timers [timercnt + HEAP0]; |
4435 | timers [active] = timers [timercnt + HEAP0]; |
2626 | adjustheap (timers, timercnt, active); |
4436 | adjustheap (timers, timercnt, active); |
2627 | } |
4437 | } |
2628 | } |
4438 | } |
… | |
… | |
2632 | ev_stop (EV_A_ (W)w); |
4442 | ev_stop (EV_A_ (W)w); |
2633 | |
4443 | |
2634 | EV_FREQUENT_CHECK; |
4444 | EV_FREQUENT_CHECK; |
2635 | } |
4445 | } |
2636 | |
4446 | |
2637 | void noinline |
4447 | ecb_noinline |
|
|
4448 | void |
2638 | ev_timer_again (EV_P_ ev_timer *w) |
4449 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2639 | { |
4450 | { |
2640 | EV_FREQUENT_CHECK; |
4451 | EV_FREQUENT_CHECK; |
|
|
4452 | |
|
|
4453 | clear_pending (EV_A_ (W)w); |
2641 | |
4454 | |
2642 | if (ev_is_active (w)) |
4455 | if (ev_is_active (w)) |
2643 | { |
4456 | { |
2644 | if (w->repeat) |
4457 | if (w->repeat) |
2645 | { |
4458 | { |
… | |
… | |
2658 | |
4471 | |
2659 | EV_FREQUENT_CHECK; |
4472 | EV_FREQUENT_CHECK; |
2660 | } |
4473 | } |
2661 | |
4474 | |
2662 | ev_tstamp |
4475 | ev_tstamp |
2663 | ev_timer_remaining (EV_P_ ev_timer *w) |
4476 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2664 | { |
4477 | { |
2665 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4478 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2666 | } |
4479 | } |
2667 | |
4480 | |
2668 | #if EV_PERIODIC_ENABLE |
4481 | #if EV_PERIODIC_ENABLE |
2669 | void noinline |
4482 | ecb_noinline |
|
|
4483 | void |
2670 | ev_periodic_start (EV_P_ ev_periodic *w) |
4484 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2671 | { |
4485 | { |
2672 | if (expect_false (ev_is_active (w))) |
4486 | if (ecb_expect_false (ev_is_active (w))) |
2673 | return; |
4487 | return; |
|
|
4488 | |
|
|
4489 | #if EV_USE_TIMERFD |
|
|
4490 | if (timerfd == -2) |
|
|
4491 | evtimerfd_init (EV_A); |
|
|
4492 | #endif |
2674 | |
4493 | |
2675 | if (w->reschedule_cb) |
4494 | if (w->reschedule_cb) |
2676 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4495 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2677 | else if (w->interval) |
4496 | else if (w->interval) |
2678 | { |
4497 | { |
2679 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4498 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2680 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4499 | periodic_recalc (EV_A_ w); |
2681 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2682 | } |
4500 | } |
2683 | else |
4501 | else |
2684 | ev_at (w) = w->offset; |
4502 | ev_at (w) = w->offset; |
2685 | |
4503 | |
2686 | EV_FREQUENT_CHECK; |
4504 | EV_FREQUENT_CHECK; |
2687 | |
4505 | |
2688 | ++periodiccnt; |
4506 | ++periodiccnt; |
2689 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4507 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2690 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4508 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2691 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4509 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2692 | ANHE_at_cache (periodics [ev_active (w)]); |
4510 | ANHE_at_cache (periodics [ev_active (w)]); |
2693 | upheap (periodics, ev_active (w)); |
4511 | upheap (periodics, ev_active (w)); |
2694 | |
4512 | |
2695 | EV_FREQUENT_CHECK; |
4513 | EV_FREQUENT_CHECK; |
2696 | |
4514 | |
2697 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4515 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2698 | } |
4516 | } |
2699 | |
4517 | |
2700 | void noinline |
4518 | ecb_noinline |
|
|
4519 | void |
2701 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4520 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2702 | { |
4521 | { |
2703 | clear_pending (EV_A_ (W)w); |
4522 | clear_pending (EV_A_ (W)w); |
2704 | if (expect_false (!ev_is_active (w))) |
4523 | if (ecb_expect_false (!ev_is_active (w))) |
2705 | return; |
4524 | return; |
2706 | |
4525 | |
2707 | EV_FREQUENT_CHECK; |
4526 | EV_FREQUENT_CHECK; |
2708 | |
4527 | |
2709 | { |
4528 | { |
… | |
… | |
2711 | |
4530 | |
2712 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4531 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2713 | |
4532 | |
2714 | --periodiccnt; |
4533 | --periodiccnt; |
2715 | |
4534 | |
2716 | if (expect_true (active < periodiccnt + HEAP0)) |
4535 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2717 | { |
4536 | { |
2718 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4537 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2719 | adjustheap (periodics, periodiccnt, active); |
4538 | adjustheap (periodics, periodiccnt, active); |
2720 | } |
4539 | } |
2721 | } |
4540 | } |
… | |
… | |
2723 | ev_stop (EV_A_ (W)w); |
4542 | ev_stop (EV_A_ (W)w); |
2724 | |
4543 | |
2725 | EV_FREQUENT_CHECK; |
4544 | EV_FREQUENT_CHECK; |
2726 | } |
4545 | } |
2727 | |
4546 | |
2728 | void noinline |
4547 | ecb_noinline |
|
|
4548 | void |
2729 | ev_periodic_again (EV_P_ ev_periodic *w) |
4549 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2730 | { |
4550 | { |
2731 | /* TODO: use adjustheap and recalculation */ |
4551 | /* TODO: use adjustheap and recalculation */ |
2732 | ev_periodic_stop (EV_A_ w); |
4552 | ev_periodic_stop (EV_A_ w); |
2733 | ev_periodic_start (EV_A_ w); |
4553 | ev_periodic_start (EV_A_ w); |
2734 | } |
4554 | } |
… | |
… | |
2738 | # define SA_RESTART 0 |
4558 | # define SA_RESTART 0 |
2739 | #endif |
4559 | #endif |
2740 | |
4560 | |
2741 | #if EV_SIGNAL_ENABLE |
4561 | #if EV_SIGNAL_ENABLE |
2742 | |
4562 | |
2743 | void noinline |
4563 | ecb_noinline |
|
|
4564 | void |
2744 | ev_signal_start (EV_P_ ev_signal *w) |
4565 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2745 | { |
4566 | { |
2746 | if (expect_false (ev_is_active (w))) |
4567 | if (ecb_expect_false (ev_is_active (w))) |
2747 | return; |
4568 | return; |
2748 | |
4569 | |
2749 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4570 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2750 | |
4571 | |
2751 | #if EV_MULTIPLICITY |
4572 | #if EV_MULTIPLICITY |
2752 | assert (("libev: a signal must not be attached to two different loops", |
4573 | assert (("libev: a signal must not be attached to two different loops", |
2753 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4574 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2754 | |
4575 | |
2755 | signals [w->signum - 1].loop = EV_A; |
4576 | signals [w->signum - 1].loop = EV_A; |
|
|
4577 | ECB_MEMORY_FENCE_RELEASE; |
2756 | #endif |
4578 | #endif |
2757 | |
4579 | |
2758 | EV_FREQUENT_CHECK; |
4580 | EV_FREQUENT_CHECK; |
2759 | |
4581 | |
2760 | #if EV_USE_SIGNALFD |
4582 | #if EV_USE_SIGNALFD |
… | |
… | |
2807 | sa.sa_handler = ev_sighandler; |
4629 | sa.sa_handler = ev_sighandler; |
2808 | sigfillset (&sa.sa_mask); |
4630 | sigfillset (&sa.sa_mask); |
2809 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4631 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2810 | sigaction (w->signum, &sa, 0); |
4632 | sigaction (w->signum, &sa, 0); |
2811 | |
4633 | |
|
|
4634 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4635 | { |
2812 | sigemptyset (&sa.sa_mask); |
4636 | sigemptyset (&sa.sa_mask); |
2813 | sigaddset (&sa.sa_mask, w->signum); |
4637 | sigaddset (&sa.sa_mask, w->signum); |
2814 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4638 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4639 | } |
2815 | #endif |
4640 | #endif |
2816 | } |
4641 | } |
2817 | |
4642 | |
2818 | EV_FREQUENT_CHECK; |
4643 | EV_FREQUENT_CHECK; |
2819 | } |
4644 | } |
2820 | |
4645 | |
2821 | void noinline |
4646 | ecb_noinline |
|
|
4647 | void |
2822 | ev_signal_stop (EV_P_ ev_signal *w) |
4648 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2823 | { |
4649 | { |
2824 | clear_pending (EV_A_ (W)w); |
4650 | clear_pending (EV_A_ (W)w); |
2825 | if (expect_false (!ev_is_active (w))) |
4651 | if (ecb_expect_false (!ev_is_active (w))) |
2826 | return; |
4652 | return; |
2827 | |
4653 | |
2828 | EV_FREQUENT_CHECK; |
4654 | EV_FREQUENT_CHECK; |
2829 | |
4655 | |
2830 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4656 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
2858 | #endif |
4684 | #endif |
2859 | |
4685 | |
2860 | #if EV_CHILD_ENABLE |
4686 | #if EV_CHILD_ENABLE |
2861 | |
4687 | |
2862 | void |
4688 | void |
2863 | ev_child_start (EV_P_ ev_child *w) |
4689 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2864 | { |
4690 | { |
2865 | #if EV_MULTIPLICITY |
4691 | #if EV_MULTIPLICITY |
2866 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4692 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2867 | #endif |
4693 | #endif |
2868 | if (expect_false (ev_is_active (w))) |
4694 | if (ecb_expect_false (ev_is_active (w))) |
2869 | return; |
4695 | return; |
2870 | |
4696 | |
2871 | EV_FREQUENT_CHECK; |
4697 | EV_FREQUENT_CHECK; |
2872 | |
4698 | |
2873 | ev_start (EV_A_ (W)w, 1); |
4699 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
2875 | |
4701 | |
2876 | EV_FREQUENT_CHECK; |
4702 | EV_FREQUENT_CHECK; |
2877 | } |
4703 | } |
2878 | |
4704 | |
2879 | void |
4705 | void |
2880 | ev_child_stop (EV_P_ ev_child *w) |
4706 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2881 | { |
4707 | { |
2882 | clear_pending (EV_A_ (W)w); |
4708 | clear_pending (EV_A_ (W)w); |
2883 | if (expect_false (!ev_is_active (w))) |
4709 | if (ecb_expect_false (!ev_is_active (w))) |
2884 | return; |
4710 | return; |
2885 | |
4711 | |
2886 | EV_FREQUENT_CHECK; |
4712 | EV_FREQUENT_CHECK; |
2887 | |
4713 | |
2888 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4714 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
2902 | |
4728 | |
2903 | #define DEF_STAT_INTERVAL 5.0074891 |
4729 | #define DEF_STAT_INTERVAL 5.0074891 |
2904 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4730 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2905 | #define MIN_STAT_INTERVAL 0.1074891 |
4731 | #define MIN_STAT_INTERVAL 0.1074891 |
2906 | |
4732 | |
2907 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4733 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2908 | |
4734 | |
2909 | #if EV_USE_INOTIFY |
4735 | #if EV_USE_INOTIFY |
2910 | |
4736 | |
2911 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4737 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
2912 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4738 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2913 | |
4739 | |
2914 | static void noinline |
4740 | ecb_noinline |
|
|
4741 | static void |
2915 | infy_add (EV_P_ ev_stat *w) |
4742 | infy_add (EV_P_ ev_stat *w) |
2916 | { |
4743 | { |
2917 | 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); |
4744 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4745 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4746 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4747 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2918 | |
4748 | |
2919 | if (w->wd >= 0) |
4749 | if (w->wd >= 0) |
2920 | { |
4750 | { |
2921 | struct statfs sfs; |
4751 | struct statfs sfs; |
2922 | |
4752 | |
… | |
… | |
2926 | |
4756 | |
2927 | if (!fs_2625) |
4757 | if (!fs_2625) |
2928 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4758 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2929 | else if (!statfs (w->path, &sfs) |
4759 | else if (!statfs (w->path, &sfs) |
2930 | && (sfs.f_type == 0x1373 /* devfs */ |
4760 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4761 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4762 | || sfs.f_type == 0x4d44 /* msdos */ |
2931 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4763 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4764 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4765 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4766 | || sfs.f_type == 0x5346544e /* ntfs */ |
2932 | || sfs.f_type == 0x3153464a /* jfs */ |
4767 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4768 | || sfs.f_type == 0x9123683e /* btrfs */ |
2933 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4769 | || sfs.f_type == 0x52654973 /* reiser3 */ |
2934 | || sfs.f_type == 0x01021994 /* tempfs */ |
4770 | || sfs.f_type == 0x01021994 /* tmpfs */ |
2935 | || sfs.f_type == 0x58465342 /* xfs */)) |
4771 | || sfs.f_type == 0x58465342 /* xfs */)) |
2936 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4772 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
2937 | else |
4773 | else |
2938 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4774 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2939 | } |
4775 | } |
… | |
… | |
2960 | if (!pend || pend == path) |
4796 | if (!pend || pend == path) |
2961 | break; |
4797 | break; |
2962 | |
4798 | |
2963 | *pend = 0; |
4799 | *pend = 0; |
2964 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4800 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2965 | } |
4801 | } |
2966 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4802 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2967 | } |
4803 | } |
2968 | } |
4804 | } |
2969 | |
4805 | |
2970 | if (w->wd >= 0) |
4806 | if (w->wd >= 0) |
… | |
… | |
2974 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4810 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2975 | ev_timer_again (EV_A_ &w->timer); |
4811 | ev_timer_again (EV_A_ &w->timer); |
2976 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4812 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2977 | } |
4813 | } |
2978 | |
4814 | |
2979 | static void noinline |
4815 | ecb_noinline |
|
|
4816 | static void |
2980 | infy_del (EV_P_ ev_stat *w) |
4817 | infy_del (EV_P_ ev_stat *w) |
2981 | { |
4818 | { |
2982 | int slot; |
4819 | int slot; |
2983 | int wd = w->wd; |
4820 | int wd = w->wd; |
2984 | |
4821 | |
… | |
… | |
2991 | |
4828 | |
2992 | /* remove this watcher, if others are watching it, they will rearm */ |
4829 | /* remove this watcher, if others are watching it, they will rearm */ |
2993 | inotify_rm_watch (fs_fd, wd); |
4830 | inotify_rm_watch (fs_fd, wd); |
2994 | } |
4831 | } |
2995 | |
4832 | |
2996 | static void noinline |
4833 | ecb_noinline |
|
|
4834 | static void |
2997 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4835 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2998 | { |
4836 | { |
2999 | if (slot < 0) |
4837 | if (slot < 0) |
3000 | /* overflow, need to check for all hash slots */ |
4838 | /* overflow, need to check for all hash slots */ |
3001 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4839 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3037 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4875 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3038 | ofs += sizeof (struct inotify_event) + ev->len; |
4876 | ofs += sizeof (struct inotify_event) + ev->len; |
3039 | } |
4877 | } |
3040 | } |
4878 | } |
3041 | |
4879 | |
3042 | inline_size unsigned int |
|
|
3043 | ev_linux_version (void) |
|
|
3044 | { |
|
|
3045 | struct utsname buf; |
|
|
3046 | unsigned int v; |
|
|
3047 | int i; |
|
|
3048 | char *p = buf.release; |
|
|
3049 | |
|
|
3050 | if (uname (&buf)) |
|
|
3051 | return 0; |
|
|
3052 | |
|
|
3053 | for (i = 3+1; --i; ) |
|
|
3054 | { |
|
|
3055 | unsigned int c = 0; |
|
|
3056 | |
|
|
3057 | for (;;) |
|
|
3058 | { |
|
|
3059 | if (*p >= '0' && *p <= '9') |
|
|
3060 | c = c * 10 + *p++ - '0'; |
|
|
3061 | else |
|
|
3062 | { |
|
|
3063 | p += *p == '.'; |
|
|
3064 | break; |
|
|
3065 | } |
|
|
3066 | } |
|
|
3067 | |
|
|
3068 | v = (v << 8) | c; |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | return v; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | inline_size void |
4880 | inline_size ecb_cold |
|
|
4881 | void |
3075 | ev_check_2625 (EV_P) |
4882 | ev_check_2625 (EV_P) |
3076 | { |
4883 | { |
3077 | /* kernels < 2.6.25 are borked |
4884 | /* kernels < 2.6.25 are borked |
3078 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4885 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3079 | */ |
4886 | */ |
… | |
… | |
3084 | } |
4891 | } |
3085 | |
4892 | |
3086 | inline_size int |
4893 | inline_size int |
3087 | infy_newfd (void) |
4894 | infy_newfd (void) |
3088 | { |
4895 | { |
3089 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4896 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3090 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4897 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3091 | if (fd >= 0) |
4898 | if (fd >= 0) |
3092 | return fd; |
4899 | return fd; |
3093 | #endif |
4900 | #endif |
3094 | return inotify_init (); |
4901 | return inotify_init (); |
… | |
… | |
3169 | #else |
4976 | #else |
3170 | # define EV_LSTAT(p,b) lstat (p, b) |
4977 | # define EV_LSTAT(p,b) lstat (p, b) |
3171 | #endif |
4978 | #endif |
3172 | |
4979 | |
3173 | void |
4980 | void |
3174 | ev_stat_stat (EV_P_ ev_stat *w) |
4981 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3175 | { |
4982 | { |
3176 | if (lstat (w->path, &w->attr) < 0) |
4983 | if (lstat (w->path, &w->attr) < 0) |
3177 | w->attr.st_nlink = 0; |
4984 | w->attr.st_nlink = 0; |
3178 | else if (!w->attr.st_nlink) |
4985 | else if (!w->attr.st_nlink) |
3179 | w->attr.st_nlink = 1; |
4986 | w->attr.st_nlink = 1; |
3180 | } |
4987 | } |
3181 | |
4988 | |
3182 | static void noinline |
4989 | ecb_noinline |
|
|
4990 | static void |
3183 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4991 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3184 | { |
4992 | { |
3185 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4993 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3186 | |
4994 | |
3187 | ev_statdata prev = w->attr; |
4995 | ev_statdata prev = w->attr; |
… | |
… | |
3218 | ev_feed_event (EV_A_ w, EV_STAT); |
5026 | ev_feed_event (EV_A_ w, EV_STAT); |
3219 | } |
5027 | } |
3220 | } |
5028 | } |
3221 | |
5029 | |
3222 | void |
5030 | void |
3223 | ev_stat_start (EV_P_ ev_stat *w) |
5031 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3224 | { |
5032 | { |
3225 | if (expect_false (ev_is_active (w))) |
5033 | if (ecb_expect_false (ev_is_active (w))) |
3226 | return; |
5034 | return; |
3227 | |
5035 | |
3228 | ev_stat_stat (EV_A_ w); |
5036 | ev_stat_stat (EV_A_ w); |
3229 | |
5037 | |
3230 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
5038 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3249 | |
5057 | |
3250 | EV_FREQUENT_CHECK; |
5058 | EV_FREQUENT_CHECK; |
3251 | } |
5059 | } |
3252 | |
5060 | |
3253 | void |
5061 | void |
3254 | ev_stat_stop (EV_P_ ev_stat *w) |
5062 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3255 | { |
5063 | { |
3256 | clear_pending (EV_A_ (W)w); |
5064 | clear_pending (EV_A_ (W)w); |
3257 | if (expect_false (!ev_is_active (w))) |
5065 | if (ecb_expect_false (!ev_is_active (w))) |
3258 | return; |
5066 | return; |
3259 | |
5067 | |
3260 | EV_FREQUENT_CHECK; |
5068 | EV_FREQUENT_CHECK; |
3261 | |
5069 | |
3262 | #if EV_USE_INOTIFY |
5070 | #if EV_USE_INOTIFY |
… | |
… | |
3275 | } |
5083 | } |
3276 | #endif |
5084 | #endif |
3277 | |
5085 | |
3278 | #if EV_IDLE_ENABLE |
5086 | #if EV_IDLE_ENABLE |
3279 | void |
5087 | void |
3280 | ev_idle_start (EV_P_ ev_idle *w) |
5088 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3281 | { |
5089 | { |
3282 | if (expect_false (ev_is_active (w))) |
5090 | if (ecb_expect_false (ev_is_active (w))) |
3283 | return; |
5091 | return; |
3284 | |
5092 | |
3285 | pri_adjust (EV_A_ (W)w); |
5093 | pri_adjust (EV_A_ (W)w); |
3286 | |
5094 | |
3287 | EV_FREQUENT_CHECK; |
5095 | EV_FREQUENT_CHECK; |
… | |
… | |
3290 | int active = ++idlecnt [ABSPRI (w)]; |
5098 | int active = ++idlecnt [ABSPRI (w)]; |
3291 | |
5099 | |
3292 | ++idleall; |
5100 | ++idleall; |
3293 | ev_start (EV_A_ (W)w, active); |
5101 | ev_start (EV_A_ (W)w, active); |
3294 | |
5102 | |
3295 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
5103 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3296 | idles [ABSPRI (w)][active - 1] = w; |
5104 | idles [ABSPRI (w)][active - 1] = w; |
3297 | } |
5105 | } |
3298 | |
5106 | |
3299 | EV_FREQUENT_CHECK; |
5107 | EV_FREQUENT_CHECK; |
3300 | } |
5108 | } |
3301 | |
5109 | |
3302 | void |
5110 | void |
3303 | ev_idle_stop (EV_P_ ev_idle *w) |
5111 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3304 | { |
5112 | { |
3305 | clear_pending (EV_A_ (W)w); |
5113 | clear_pending (EV_A_ (W)w); |
3306 | if (expect_false (!ev_is_active (w))) |
5114 | if (ecb_expect_false (!ev_is_active (w))) |
3307 | return; |
5115 | return; |
3308 | |
5116 | |
3309 | EV_FREQUENT_CHECK; |
5117 | EV_FREQUENT_CHECK; |
3310 | |
5118 | |
3311 | { |
5119 | { |
… | |
… | |
3322 | } |
5130 | } |
3323 | #endif |
5131 | #endif |
3324 | |
5132 | |
3325 | #if EV_PREPARE_ENABLE |
5133 | #if EV_PREPARE_ENABLE |
3326 | void |
5134 | void |
3327 | ev_prepare_start (EV_P_ ev_prepare *w) |
5135 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3328 | { |
5136 | { |
3329 | if (expect_false (ev_is_active (w))) |
5137 | if (ecb_expect_false (ev_is_active (w))) |
3330 | return; |
5138 | return; |
3331 | |
5139 | |
3332 | EV_FREQUENT_CHECK; |
5140 | EV_FREQUENT_CHECK; |
3333 | |
5141 | |
3334 | ev_start (EV_A_ (W)w, ++preparecnt); |
5142 | ev_start (EV_A_ (W)w, ++preparecnt); |
3335 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
5143 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3336 | prepares [preparecnt - 1] = w; |
5144 | prepares [preparecnt - 1] = w; |
3337 | |
5145 | |
3338 | EV_FREQUENT_CHECK; |
5146 | EV_FREQUENT_CHECK; |
3339 | } |
5147 | } |
3340 | |
5148 | |
3341 | void |
5149 | void |
3342 | ev_prepare_stop (EV_P_ ev_prepare *w) |
5150 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3343 | { |
5151 | { |
3344 | clear_pending (EV_A_ (W)w); |
5152 | clear_pending (EV_A_ (W)w); |
3345 | if (expect_false (!ev_is_active (w))) |
5153 | if (ecb_expect_false (!ev_is_active (w))) |
3346 | return; |
5154 | return; |
3347 | |
5155 | |
3348 | EV_FREQUENT_CHECK; |
5156 | EV_FREQUENT_CHECK; |
3349 | |
5157 | |
3350 | { |
5158 | { |
… | |
… | |
3360 | } |
5168 | } |
3361 | #endif |
5169 | #endif |
3362 | |
5170 | |
3363 | #if EV_CHECK_ENABLE |
5171 | #if EV_CHECK_ENABLE |
3364 | void |
5172 | void |
3365 | ev_check_start (EV_P_ ev_check *w) |
5173 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3366 | { |
5174 | { |
3367 | if (expect_false (ev_is_active (w))) |
5175 | if (ecb_expect_false (ev_is_active (w))) |
3368 | return; |
5176 | return; |
3369 | |
5177 | |
3370 | EV_FREQUENT_CHECK; |
5178 | EV_FREQUENT_CHECK; |
3371 | |
5179 | |
3372 | ev_start (EV_A_ (W)w, ++checkcnt); |
5180 | ev_start (EV_A_ (W)w, ++checkcnt); |
3373 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5181 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3374 | checks [checkcnt - 1] = w; |
5182 | checks [checkcnt - 1] = w; |
3375 | |
5183 | |
3376 | EV_FREQUENT_CHECK; |
5184 | EV_FREQUENT_CHECK; |
3377 | } |
5185 | } |
3378 | |
5186 | |
3379 | void |
5187 | void |
3380 | ev_check_stop (EV_P_ ev_check *w) |
5188 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3381 | { |
5189 | { |
3382 | clear_pending (EV_A_ (W)w); |
5190 | clear_pending (EV_A_ (W)w); |
3383 | if (expect_false (!ev_is_active (w))) |
5191 | if (ecb_expect_false (!ev_is_active (w))) |
3384 | return; |
5192 | return; |
3385 | |
5193 | |
3386 | EV_FREQUENT_CHECK; |
5194 | EV_FREQUENT_CHECK; |
3387 | |
5195 | |
3388 | { |
5196 | { |
… | |
… | |
3397 | EV_FREQUENT_CHECK; |
5205 | EV_FREQUENT_CHECK; |
3398 | } |
5206 | } |
3399 | #endif |
5207 | #endif |
3400 | |
5208 | |
3401 | #if EV_EMBED_ENABLE |
5209 | #if EV_EMBED_ENABLE |
3402 | void noinline |
5210 | ecb_noinline |
|
|
5211 | void |
3403 | ev_embed_sweep (EV_P_ ev_embed *w) |
5212 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3404 | { |
5213 | { |
3405 | ev_loop (w->other, EVLOOP_NONBLOCK); |
5214 | ev_run (w->other, EVRUN_NOWAIT); |
3406 | } |
5215 | } |
3407 | |
5216 | |
3408 | static void |
5217 | static void |
3409 | embed_io_cb (EV_P_ ev_io *io, int revents) |
5218 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3410 | { |
5219 | { |
3411 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
5220 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3412 | |
5221 | |
3413 | if (ev_cb (w)) |
5222 | if (ev_cb (w)) |
3414 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
5223 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3415 | else |
5224 | else |
3416 | ev_loop (w->other, EVLOOP_NONBLOCK); |
5225 | ev_run (w->other, EVRUN_NOWAIT); |
3417 | } |
5226 | } |
3418 | |
5227 | |
3419 | static void |
5228 | static void |
3420 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
5229 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3421 | { |
5230 | { |
… | |
… | |
3425 | EV_P = w->other; |
5234 | EV_P = w->other; |
3426 | |
5235 | |
3427 | while (fdchangecnt) |
5236 | while (fdchangecnt) |
3428 | { |
5237 | { |
3429 | fd_reify (EV_A); |
5238 | fd_reify (EV_A); |
3430 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
5239 | ev_run (EV_A_ EVRUN_NOWAIT); |
3431 | } |
5240 | } |
3432 | } |
5241 | } |
3433 | } |
5242 | } |
3434 | |
5243 | |
|
|
5244 | #if EV_FORK_ENABLE |
3435 | static void |
5245 | static void |
3436 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5246 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3437 | { |
5247 | { |
3438 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5248 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3439 | |
5249 | |
… | |
… | |
3441 | |
5251 | |
3442 | { |
5252 | { |
3443 | EV_P = w->other; |
5253 | EV_P = w->other; |
3444 | |
5254 | |
3445 | ev_loop_fork (EV_A); |
5255 | ev_loop_fork (EV_A); |
3446 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
5256 | ev_run (EV_A_ EVRUN_NOWAIT); |
3447 | } |
5257 | } |
3448 | |
5258 | |
3449 | ev_embed_start (EV_A_ w); |
5259 | ev_embed_start (EV_A_ w); |
3450 | } |
5260 | } |
|
|
5261 | #endif |
3451 | |
5262 | |
3452 | #if 0 |
5263 | #if 0 |
3453 | static void |
5264 | static void |
3454 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5265 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3455 | { |
5266 | { |
3456 | ev_idle_stop (EV_A_ idle); |
5267 | ev_idle_stop (EV_A_ idle); |
3457 | } |
5268 | } |
3458 | #endif |
5269 | #endif |
3459 | |
5270 | |
3460 | void |
5271 | void |
3461 | ev_embed_start (EV_P_ ev_embed *w) |
5272 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3462 | { |
5273 | { |
3463 | if (expect_false (ev_is_active (w))) |
5274 | if (ecb_expect_false (ev_is_active (w))) |
3464 | return; |
5275 | return; |
3465 | |
5276 | |
3466 | { |
5277 | { |
3467 | EV_P = w->other; |
5278 | EV_P = w->other; |
3468 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5279 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3476 | |
5287 | |
3477 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5288 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3478 | ev_set_priority (&w->prepare, EV_MINPRI); |
5289 | ev_set_priority (&w->prepare, EV_MINPRI); |
3479 | ev_prepare_start (EV_A_ &w->prepare); |
5290 | ev_prepare_start (EV_A_ &w->prepare); |
3480 | |
5291 | |
|
|
5292 | #if EV_FORK_ENABLE |
3481 | ev_fork_init (&w->fork, embed_fork_cb); |
5293 | ev_fork_init (&w->fork, embed_fork_cb); |
3482 | ev_fork_start (EV_A_ &w->fork); |
5294 | ev_fork_start (EV_A_ &w->fork); |
|
|
5295 | #endif |
3483 | |
5296 | |
3484 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5297 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3485 | |
5298 | |
3486 | ev_start (EV_A_ (W)w, 1); |
5299 | ev_start (EV_A_ (W)w, 1); |
3487 | |
5300 | |
3488 | EV_FREQUENT_CHECK; |
5301 | EV_FREQUENT_CHECK; |
3489 | } |
5302 | } |
3490 | |
5303 | |
3491 | void |
5304 | void |
3492 | ev_embed_stop (EV_P_ ev_embed *w) |
5305 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3493 | { |
5306 | { |
3494 | clear_pending (EV_A_ (W)w); |
5307 | clear_pending (EV_A_ (W)w); |
3495 | if (expect_false (!ev_is_active (w))) |
5308 | if (ecb_expect_false (!ev_is_active (w))) |
3496 | return; |
5309 | return; |
3497 | |
5310 | |
3498 | EV_FREQUENT_CHECK; |
5311 | EV_FREQUENT_CHECK; |
3499 | |
5312 | |
3500 | ev_io_stop (EV_A_ &w->io); |
5313 | ev_io_stop (EV_A_ &w->io); |
3501 | ev_prepare_stop (EV_A_ &w->prepare); |
5314 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5315 | #if EV_FORK_ENABLE |
3502 | ev_fork_stop (EV_A_ &w->fork); |
5316 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5317 | #endif |
3503 | |
5318 | |
3504 | ev_stop (EV_A_ (W)w); |
5319 | ev_stop (EV_A_ (W)w); |
3505 | |
5320 | |
3506 | EV_FREQUENT_CHECK; |
5321 | EV_FREQUENT_CHECK; |
3507 | } |
5322 | } |
3508 | #endif |
5323 | #endif |
3509 | |
5324 | |
3510 | #if EV_FORK_ENABLE |
5325 | #if EV_FORK_ENABLE |
3511 | void |
5326 | void |
3512 | ev_fork_start (EV_P_ ev_fork *w) |
5327 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3513 | { |
5328 | { |
3514 | if (expect_false (ev_is_active (w))) |
5329 | if (ecb_expect_false (ev_is_active (w))) |
3515 | return; |
5330 | return; |
3516 | |
5331 | |
3517 | EV_FREQUENT_CHECK; |
5332 | EV_FREQUENT_CHECK; |
3518 | |
5333 | |
3519 | ev_start (EV_A_ (W)w, ++forkcnt); |
5334 | ev_start (EV_A_ (W)w, ++forkcnt); |
3520 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5335 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3521 | forks [forkcnt - 1] = w; |
5336 | forks [forkcnt - 1] = w; |
3522 | |
5337 | |
3523 | EV_FREQUENT_CHECK; |
5338 | EV_FREQUENT_CHECK; |
3524 | } |
5339 | } |
3525 | |
5340 | |
3526 | void |
5341 | void |
3527 | ev_fork_stop (EV_P_ ev_fork *w) |
5342 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3528 | { |
5343 | { |
3529 | clear_pending (EV_A_ (W)w); |
5344 | clear_pending (EV_A_ (W)w); |
3530 | if (expect_false (!ev_is_active (w))) |
5345 | if (ecb_expect_false (!ev_is_active (w))) |
3531 | return; |
5346 | return; |
3532 | |
5347 | |
3533 | EV_FREQUENT_CHECK; |
5348 | EV_FREQUENT_CHECK; |
3534 | |
5349 | |
3535 | { |
5350 | { |
… | |
… | |
3543 | |
5358 | |
3544 | EV_FREQUENT_CHECK; |
5359 | EV_FREQUENT_CHECK; |
3545 | } |
5360 | } |
3546 | #endif |
5361 | #endif |
3547 | |
5362 | |
|
|
5363 | #if EV_CLEANUP_ENABLE |
|
|
5364 | void |
|
|
5365 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5366 | { |
|
|
5367 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5368 | return; |
|
|
5369 | |
|
|
5370 | EV_FREQUENT_CHECK; |
|
|
5371 | |
|
|
5372 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5373 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5374 | cleanups [cleanupcnt - 1] = w; |
|
|
5375 | |
|
|
5376 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5377 | ev_unref (EV_A); |
|
|
5378 | EV_FREQUENT_CHECK; |
|
|
5379 | } |
|
|
5380 | |
|
|
5381 | void |
|
|
5382 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5383 | { |
|
|
5384 | clear_pending (EV_A_ (W)w); |
|
|
5385 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5386 | return; |
|
|
5387 | |
|
|
5388 | EV_FREQUENT_CHECK; |
|
|
5389 | ev_ref (EV_A); |
|
|
5390 | |
|
|
5391 | { |
|
|
5392 | int active = ev_active (w); |
|
|
5393 | |
|
|
5394 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5395 | ev_active (cleanups [active - 1]) = active; |
|
|
5396 | } |
|
|
5397 | |
|
|
5398 | ev_stop (EV_A_ (W)w); |
|
|
5399 | |
|
|
5400 | EV_FREQUENT_CHECK; |
|
|
5401 | } |
|
|
5402 | #endif |
|
|
5403 | |
3548 | #if EV_ASYNC_ENABLE |
5404 | #if EV_ASYNC_ENABLE |
3549 | void |
5405 | void |
3550 | ev_async_start (EV_P_ ev_async *w) |
5406 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3551 | { |
5407 | { |
3552 | if (expect_false (ev_is_active (w))) |
5408 | if (ecb_expect_false (ev_is_active (w))) |
3553 | return; |
5409 | return; |
3554 | |
5410 | |
|
|
5411 | w->sent = 0; |
|
|
5412 | |
3555 | evpipe_init (EV_A); |
5413 | evpipe_init (EV_A); |
3556 | |
5414 | |
3557 | EV_FREQUENT_CHECK; |
5415 | EV_FREQUENT_CHECK; |
3558 | |
5416 | |
3559 | ev_start (EV_A_ (W)w, ++asynccnt); |
5417 | ev_start (EV_A_ (W)w, ++asynccnt); |
3560 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5418 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3561 | asyncs [asynccnt - 1] = w; |
5419 | asyncs [asynccnt - 1] = w; |
3562 | |
5420 | |
3563 | EV_FREQUENT_CHECK; |
5421 | EV_FREQUENT_CHECK; |
3564 | } |
5422 | } |
3565 | |
5423 | |
3566 | void |
5424 | void |
3567 | ev_async_stop (EV_P_ ev_async *w) |
5425 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3568 | { |
5426 | { |
3569 | clear_pending (EV_A_ (W)w); |
5427 | clear_pending (EV_A_ (W)w); |
3570 | if (expect_false (!ev_is_active (w))) |
5428 | if (ecb_expect_false (!ev_is_active (w))) |
3571 | return; |
5429 | return; |
3572 | |
5430 | |
3573 | EV_FREQUENT_CHECK; |
5431 | EV_FREQUENT_CHECK; |
3574 | |
5432 | |
3575 | { |
5433 | { |
… | |
… | |
3583 | |
5441 | |
3584 | EV_FREQUENT_CHECK; |
5442 | EV_FREQUENT_CHECK; |
3585 | } |
5443 | } |
3586 | |
5444 | |
3587 | void |
5445 | void |
3588 | ev_async_send (EV_P_ ev_async *w) |
5446 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3589 | { |
5447 | { |
3590 | w->sent = 1; |
5448 | w->sent = 1; |
3591 | evpipe_write (EV_A_ &async_pending); |
5449 | evpipe_write (EV_A_ &async_pending); |
3592 | } |
5450 | } |
3593 | #endif |
5451 | #endif |
… | |
… | |
3630 | |
5488 | |
3631 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5489 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3632 | } |
5490 | } |
3633 | |
5491 | |
3634 | void |
5492 | void |
3635 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5493 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3636 | { |
5494 | { |
3637 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5495 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3638 | |
|
|
3639 | if (expect_false (!once)) |
|
|
3640 | { |
|
|
3641 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
3642 | return; |
|
|
3643 | } |
|
|
3644 | |
5496 | |
3645 | once->cb = cb; |
5497 | once->cb = cb; |
3646 | once->arg = arg; |
5498 | once->arg = arg; |
3647 | |
5499 | |
3648 | ev_init (&once->io, once_cb_io); |
5500 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3661 | } |
5513 | } |
3662 | |
5514 | |
3663 | /*****************************************************************************/ |
5515 | /*****************************************************************************/ |
3664 | |
5516 | |
3665 | #if EV_WALK_ENABLE |
5517 | #if EV_WALK_ENABLE |
|
|
5518 | ecb_cold |
3666 | void |
5519 | void |
3667 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5520 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3668 | { |
5521 | { |
3669 | int i, j; |
5522 | int i, j; |
3670 | ev_watcher_list *wl, *wn; |
5523 | ev_watcher_list *wl, *wn; |
3671 | |
5524 | |
3672 | if (types & (EV_IO | EV_EMBED)) |
5525 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3715 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5568 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3716 | #endif |
5569 | #endif |
3717 | |
5570 | |
3718 | #if EV_IDLE_ENABLE |
5571 | #if EV_IDLE_ENABLE |
3719 | if (types & EV_IDLE) |
5572 | if (types & EV_IDLE) |
3720 | for (j = NUMPRI; i--; ) |
5573 | for (j = NUMPRI; j--; ) |
3721 | for (i = idlecnt [j]; i--; ) |
5574 | for (i = idlecnt [j]; i--; ) |
3722 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5575 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3723 | #endif |
5576 | #endif |
3724 | |
5577 | |
3725 | #if EV_FORK_ENABLE |
5578 | #if EV_FORK_ENABLE |
… | |
… | |
3778 | |
5631 | |
3779 | #if EV_MULTIPLICITY |
5632 | #if EV_MULTIPLICITY |
3780 | #include "ev_wrap.h" |
5633 | #include "ev_wrap.h" |
3781 | #endif |
5634 | #endif |
3782 | |
5635 | |
3783 | #ifdef __cplusplus |
|
|
3784 | } |
|
|
3785 | #endif |
|
|
3786 | |
|
|