1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 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 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
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|
53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
115 | # else |
115 | # else |
116 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
119 | |
|
|
120 | # if HAVE_LINUX_AIO_ABI_H |
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|
121 | # ifndef EV_USE_LINUXAIO |
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|
122 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
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|
123 | # endif |
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|
124 | # else |
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|
125 | # undef EV_USE_LINUXAIO |
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|
126 | # define EV_USE_LINUXAIO 0 |
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|
127 | # endif |
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|
128 | |
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|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
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|
130 | # ifndef EV_USE_IOURING |
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|
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
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|
132 | # endif |
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|
133 | # else |
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|
134 | # undef EV_USE_IOURING |
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|
135 | # define EV_USE_IOURING 0 |
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|
136 | # endif |
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|
137 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
141 | # endif |
124 | # else |
142 | # else |
… | |
… | |
159 | # endif |
177 | # endif |
160 | # else |
178 | # else |
161 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
162 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
163 | # endif |
181 | # endif |
164 | |
182 | |
|
|
183 | # if HAVE_SYS_TIMERFD_H |
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|
184 | # ifndef EV_USE_TIMERFD |
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|
185 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
186 | # endif |
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|
187 | # else |
|
|
188 | # undef EV_USE_TIMERFD |
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|
189 | # define EV_USE_TIMERFD 0 |
165 | #endif |
190 | # endif |
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191 | |
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|
192 | #endif |
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193 | |
|
|
194 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
195 | * a limit of 1024 into their select. Where people have brains, |
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|
196 | * OS X engineers apparently have a vacuum. Or maybe they were |
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|
197 | * ordered to have a vacuum, or they do anything for money. |
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|
198 | * This might help. Or not. |
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|
199 | * Note that this must be defined early, as other include files |
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|
200 | * will rely on this define as well. |
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|
201 | */ |
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|
202 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
203 | |
167 | #include <stdlib.h> |
204 | #include <stdlib.h> |
168 | #include <string.h> |
205 | #include <string.h> |
169 | #include <fcntl.h> |
206 | #include <fcntl.h> |
170 | #include <stddef.h> |
207 | #include <stddef.h> |
… | |
… | |
201 | # include <sys/wait.h> |
238 | # include <sys/wait.h> |
202 | # include <unistd.h> |
239 | # include <unistd.h> |
203 | #else |
240 | #else |
204 | # include <io.h> |
241 | # include <io.h> |
205 | # define WIN32_LEAN_AND_MEAN |
242 | # define WIN32_LEAN_AND_MEAN |
|
|
243 | # include <winsock2.h> |
206 | # include <windows.h> |
244 | # include <windows.h> |
207 | # ifndef EV_SELECT_IS_WINSOCKET |
245 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # define EV_SELECT_IS_WINSOCKET 1 |
246 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # endif |
247 | # endif |
210 | # undef EV_AVOID_STDIO |
248 | # undef EV_AVOID_STDIO |
211 | #endif |
249 | #endif |
212 | |
250 | |
213 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
214 | * a limit of 1024 into their select. Where people have brains, |
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|
215 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
216 | * ordered to have a vacuum, or they do anything for money. |
|
|
217 | * This might help. Or not. |
|
|
218 | */ |
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219 | #define _DARWIN_UNLIMITED_SELECT 1 |
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220 | |
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|
221 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
251 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | |
252 | |
223 | /* try to deduce the maximum number of signals on this platform */ |
253 | /* try to deduce the maximum number of signals on this platform */ |
224 | #if defined (EV_NSIG) |
254 | #if defined EV_NSIG |
225 | /* use what's provided */ |
255 | /* use what's provided */ |
226 | #elif defined (NSIG) |
256 | #elif defined NSIG |
227 | # define EV_NSIG (NSIG) |
257 | # define EV_NSIG (NSIG) |
228 | #elif defined(_NSIG) |
258 | #elif defined _NSIG |
229 | # define EV_NSIG (_NSIG) |
259 | # define EV_NSIG (_NSIG) |
230 | #elif defined (SIGMAX) |
260 | #elif defined SIGMAX |
231 | # define EV_NSIG (SIGMAX+1) |
261 | # define EV_NSIG (SIGMAX+1) |
232 | #elif defined (SIG_MAX) |
262 | #elif defined SIG_MAX |
233 | # define EV_NSIG (SIG_MAX+1) |
263 | # define EV_NSIG (SIG_MAX+1) |
234 | #elif defined (_SIG_MAX) |
264 | #elif defined _SIG_MAX |
235 | # define EV_NSIG (_SIG_MAX+1) |
265 | # define EV_NSIG (_SIG_MAX+1) |
236 | #elif defined (MAXSIG) |
266 | #elif defined MAXSIG |
237 | # define EV_NSIG (MAXSIG+1) |
267 | # define EV_NSIG (MAXSIG+1) |
238 | #elif defined (MAX_SIG) |
268 | #elif defined MAX_SIG |
239 | # define EV_NSIG (MAX_SIG+1) |
269 | # define EV_NSIG (MAX_SIG+1) |
240 | #elif defined (SIGARRAYSIZE) |
270 | #elif defined SIGARRAYSIZE |
241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
271 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | #elif defined (_sys_nsig) |
272 | #elif defined _sys_nsig |
243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
273 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | #else |
274 | #else |
245 | # error "unable to find value for NSIG, please report" |
275 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
246 | /* to make it compile regardless, just remove the above line, */ |
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|
247 | /* but consider reporting it, too! :) */ |
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248 | # define EV_NSIG 65 |
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|
249 | #endif |
276 | #endif |
250 | |
277 | |
251 | #ifndef EV_USE_FLOOR |
278 | #ifndef EV_USE_FLOOR |
252 | # define EV_USE_FLOOR 0 |
279 | # define EV_USE_FLOOR 0 |
253 | #endif |
280 | #endif |
254 | |
281 | |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
282 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | # if __linux && __GLIBC__ >= 2 |
283 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
284 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # else |
285 | # else |
259 | # define EV_USE_CLOCK_SYSCALL 0 |
286 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # endif |
287 | # endif |
261 | #endif |
288 | #endif |
262 | |
289 | |
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|
290 | #if !(_POSIX_TIMERS > 0) |
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|
291 | # ifndef EV_USE_MONOTONIC |
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|
292 | # define EV_USE_MONOTONIC 0 |
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|
293 | # endif |
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294 | # ifndef EV_USE_REALTIME |
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|
295 | # define EV_USE_REALTIME 0 |
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|
296 | # endif |
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|
297 | #endif |
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298 | |
263 | #ifndef EV_USE_MONOTONIC |
299 | #ifndef EV_USE_MONOTONIC |
264 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
300 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
301 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # else |
302 | # else |
267 | # define EV_USE_MONOTONIC 0 |
303 | # define EV_USE_MONOTONIC 0 |
268 | # endif |
304 | # endif |
269 | #endif |
305 | #endif |
… | |
… | |
306 | |
342 | |
307 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
308 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
309 | #endif |
345 | #endif |
310 | |
346 | |
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347 | #ifndef EV_USE_LINUXAIO |
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348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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349 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
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350 | # else |
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351 | # define EV_USE_LINUXAIO 0 |
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352 | # endif |
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353 | #endif |
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354 | |
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355 | #ifndef EV_USE_IOURING |
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356 | # if __linux /* later checks might disable again */ |
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357 | # define EV_USE_IOURING 1 |
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358 | # else |
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359 | # define EV_USE_IOURING 0 |
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|
360 | # endif |
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|
361 | #endif |
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362 | |
311 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
313 | # define EV_USE_INOTIFY EV_FEATURE_OS |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
314 | # else |
366 | # else |
315 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
… | |
… | |
338 | # else |
390 | # else |
339 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
340 | # endif |
392 | # endif |
341 | #endif |
393 | #endif |
342 | |
394 | |
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395 | #ifndef EV_USE_TIMERFD |
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396 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
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397 | # define EV_USE_TIMERFD EV_FEATURE_OS |
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398 | # else |
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399 | # define EV_USE_TIMERFD 0 |
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400 | # endif |
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401 | #endif |
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402 | |
343 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
344 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
345 | # define EV_USE_4HEAP 1 |
405 | # define EV_USE_4HEAP 1 |
346 | # define EV_HEAP_CACHE_AT 1 |
406 | # define EV_HEAP_CACHE_AT 1 |
347 | #endif |
407 | #endif |
… | |
… | |
356 | |
416 | |
357 | #ifndef EV_HEAP_CACHE_AT |
417 | #ifndef EV_HEAP_CACHE_AT |
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
418 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | #endif |
419 | #endif |
360 | |
420 | |
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421 | #ifdef __ANDROID__ |
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422 | /* supposedly, android doesn't typedef fd_mask */ |
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423 | # undef EV_USE_SELECT |
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424 | # define EV_USE_SELECT 0 |
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425 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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426 | # undef EV_USE_CLOCK_SYSCALL |
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427 | # define EV_USE_CLOCK_SYSCALL 0 |
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428 | #endif |
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429 | |
|
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430 | /* aix's poll.h seems to cause lots of trouble */ |
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431 | #ifdef _AIX |
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432 | /* AIX has a completely broken poll.h header */ |
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433 | # undef EV_USE_POLL |
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434 | # define EV_USE_POLL 0 |
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435 | #endif |
|
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436 | |
361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
437 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* which makes programs even slower. might work on other unices, too. */ |
438 | /* which makes programs even slower. might work on other unices, too. */ |
363 | #if EV_USE_CLOCK_SYSCALL |
439 | #if EV_USE_CLOCK_SYSCALL |
364 | # include <syscall.h> |
440 | # include <sys/syscall.h> |
365 | # ifdef SYS_clock_gettime |
441 | # ifdef SYS_clock_gettime |
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # undef EV_USE_MONOTONIC |
443 | # undef EV_USE_MONOTONIC |
368 | # define EV_USE_MONOTONIC 1 |
444 | # define EV_USE_MONOTONIC 1 |
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|
445 | # define EV_NEED_SYSCALL 1 |
369 | # else |
446 | # else |
370 | # undef EV_USE_CLOCK_SYSCALL |
447 | # undef EV_USE_CLOCK_SYSCALL |
371 | # define EV_USE_CLOCK_SYSCALL 0 |
448 | # define EV_USE_CLOCK_SYSCALL 0 |
372 | # endif |
449 | # endif |
373 | #endif |
450 | #endif |
374 | |
451 | |
375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
452 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
376 | |
453 | |
377 | #ifdef _AIX |
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378 | /* AIX has a completely broken poll.h header */ |
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379 | # undef EV_USE_POLL |
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|
380 | # define EV_USE_POLL 0 |
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381 | #endif |
|
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382 | |
|
|
383 | #ifndef CLOCK_MONOTONIC |
454 | #ifndef CLOCK_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
455 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 0 |
456 | # define EV_USE_MONOTONIC 0 |
386 | #endif |
457 | #endif |
387 | |
458 | |
… | |
… | |
393 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
394 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
395 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
396 | #endif |
467 | #endif |
397 | |
468 | |
|
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469 | #if __linux && EV_USE_IOURING |
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|
470 | # include <linux/version.h> |
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|
471 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
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|
472 | # undef EV_USE_IOURING |
|
|
473 | # define EV_USE_IOURING 0 |
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|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
398 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
399 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
400 | # if !defined(_WIN32) && !defined(__hpux) |
479 | # if !defined _WIN32 && !defined __hpux |
401 | # include <sys/select.h> |
480 | # include <sys/select.h> |
|
|
481 | # endif |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #if EV_USE_LINUXAIO |
|
|
485 | # include <sys/syscall.h> |
|
|
486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
487 | # define EV_NEED_SYSCALL 1 |
|
|
488 | # else |
|
|
489 | # undef EV_USE_LINUXAIO |
|
|
490 | # define EV_USE_LINUXAIO 0 |
|
|
491 | # endif |
|
|
492 | #endif |
|
|
493 | |
|
|
494 | #if EV_USE_IOURING |
|
|
495 | # include <sys/syscall.h> |
|
|
496 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
497 | # define SYS_io_uring_setup 425 |
|
|
498 | # define SYS_io_uring_enter 426 |
|
|
499 | # define SYS_io_uring_wregister 427 |
|
|
500 | # endif |
|
|
501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
502 | # define EV_NEED_SYSCALL 1 |
|
|
503 | # else |
|
|
504 | # undef EV_USE_IOURING |
|
|
505 | # define EV_USE_IOURING 0 |
402 | # endif |
506 | # endif |
403 | #endif |
507 | #endif |
404 | |
508 | |
405 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
406 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
… | |
… | |
410 | # undef EV_USE_INOTIFY |
514 | # undef EV_USE_INOTIFY |
411 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
412 | # endif |
516 | # endif |
413 | #endif |
517 | #endif |
414 | |
518 | |
415 | #if EV_SELECT_IS_WINSOCKET |
|
|
416 | # include <winsock.h> |
|
|
417 | #endif |
|
|
418 | |
|
|
419 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
520 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
421 | # include <stdint.h> |
521 | # include <stdint.h> |
422 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
423 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
424 | # endif |
524 | # endif |
425 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
431 | # endif |
531 | # endif |
432 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
433 | #endif |
533 | #endif |
434 | |
534 | |
435 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
436 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
536 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
437 | # include <stdint.h> |
537 | # include <stdint.h> |
438 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
439 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
440 | # endif |
540 | # endif |
441 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
443 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
444 | # else |
544 | # else |
445 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
446 | # endif |
546 | # endif |
447 | # endif |
547 | # endif |
448 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
548 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
449 | |
549 | |
450 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
451 | { |
551 | { |
452 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
453 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
454 | }; |
554 | }; |
455 | #endif |
555 | #endif |
456 | |
556 | |
457 | /**/ |
557 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
|
|
558 | #if EV_USE_TIMERFD |
|
|
559 | # include <sys/timerfd.h> |
|
|
560 | /* timerfd is only used for periodics */ |
|
|
561 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
|
|
562 | # undef EV_USE_TIMERFD |
|
|
563 | # define EV_USE_TIMERFD 0 |
|
|
564 | # endif |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
458 | |
568 | |
459 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
460 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
461 | #else |
571 | #else |
462 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
467 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
468 | */ |
578 | */ |
469 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
470 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
471 | |
581 | |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
582 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
474 | |
584 | |
|
|
585 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
586 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
587 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
588 | #define EV_TSTAMP_HUGE \ |
|
|
589 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
590 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
591 | : 2147483647.) \ |
|
|
592 | |
|
|
593 | #ifndef EV_TS_CONST |
|
|
594 | # define EV_TS_CONST(nv) nv |
|
|
595 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
596 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
475 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
597 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
476 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
598 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
599 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
600 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
601 | #endif |
477 | |
602 | |
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
479 | /* ECB.H BEGIN */ |
604 | /* ECB.H BEGIN */ |
480 | /* |
605 | /* |
481 | * libecb - http://software.schmorp.de/pkg/libecb |
606 | * libecb - http://software.schmorp.de/pkg/libecb |
482 | * |
607 | * |
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
608 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
484 | * Copyright (©) 2011 Emanuele Giaquinta |
609 | * Copyright (©) 2011 Emanuele Giaquinta |
485 | * All rights reserved. |
610 | * All rights reserved. |
486 | * |
611 | * |
487 | * Redistribution and use in source and binary forms, with or without modifica- |
612 | * Redistribution and use in source and binary forms, with or without modifica- |
488 | * tion, are permitted provided that the following conditions are met: |
613 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
627 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
628 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
629 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
505 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
630 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
631 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
632 | * |
|
|
633 | * Alternatively, the contents of this file may be used under the terms of |
|
|
634 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
635 | * in which case the provisions of the GPL are applicable instead of |
|
|
636 | * the above. If you wish to allow the use of your version of this file |
|
|
637 | * only under the terms of the GPL and not to allow others to use your |
|
|
638 | * version of this file under the BSD license, indicate your decision |
|
|
639 | * by deleting the provisions above and replace them with the notice |
|
|
640 | * and other provisions required by the GPL. If you do not delete the |
|
|
641 | * provisions above, a recipient may use your version of this file under |
|
|
642 | * either the BSD or the GPL. |
507 | */ |
643 | */ |
508 | |
644 | |
509 | #ifndef ECB_H |
645 | #ifndef ECB_H |
510 | #define ECB_H |
646 | #define ECB_H |
|
|
647 | |
|
|
648 | /* 16 bits major, 16 bits minor */ |
|
|
649 | #define ECB_VERSION 0x00010006 |
511 | |
650 | |
512 | #ifdef _WIN32 |
651 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
652 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
653 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
654 | typedef signed short int16_t; |
… | |
… | |
521 | typedef unsigned long long uint64_t; |
660 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
661 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
662 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
663 | typedef unsigned __int64 uint64_t; |
525 | #endif |
664 | #endif |
|
|
665 | #ifdef _WIN64 |
|
|
666 | #define ECB_PTRSIZE 8 |
|
|
667 | typedef uint64_t uintptr_t; |
|
|
668 | typedef int64_t intptr_t; |
|
|
669 | #else |
|
|
670 | #define ECB_PTRSIZE 4 |
|
|
671 | typedef uint32_t uintptr_t; |
|
|
672 | typedef int32_t intptr_t; |
|
|
673 | #endif |
526 | #else |
674 | #else |
527 | #include <inttypes.h> |
675 | #include <inttypes.h> |
|
|
676 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
|
|
677 | #define ECB_PTRSIZE 8 |
|
|
678 | #else |
|
|
679 | #define ECB_PTRSIZE 4 |
|
|
680 | #endif |
|
|
681 | #endif |
|
|
682 | |
|
|
683 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
684 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
685 | |
|
|
686 | /* work around x32 idiocy by defining proper macros */ |
|
|
687 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
688 | #if _ILP32 |
|
|
689 | #define ECB_AMD64_X32 1 |
|
|
690 | #else |
|
|
691 | #define ECB_AMD64 1 |
|
|
692 | #endif |
528 | #endif |
693 | #endif |
529 | |
694 | |
530 | /* many compilers define _GNUC_ to some versions but then only implement |
695 | /* many compilers define _GNUC_ to some versions but then only implement |
531 | * what their idiot authors think are the "more important" extensions, |
696 | * what their idiot authors think are the "more important" extensions, |
532 | * causing enormous grief in return for some better fake benchmark numbers. |
697 | * causing enormous grief in return for some better fake benchmark numbers. |
533 | * or so. |
698 | * or so. |
534 | * we try to detect these and simply assume they are not gcc - if they have |
699 | * we try to detect these and simply assume they are not gcc - if they have |
535 | * an issue with that they should have done it right in the first place. |
700 | * an issue with that they should have done it right in the first place. |
536 | */ |
701 | */ |
537 | #ifndef ECB_GCC_VERSION |
|
|
538 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
702 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
539 | #define ECB_GCC_VERSION(major,minor) 0 |
703 | #define ECB_GCC_VERSION(major,minor) 0 |
540 | #else |
704 | #else |
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
705 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
542 | #endif |
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
709 | |
|
|
710 | #if __clang__ && defined __has_builtin |
|
|
711 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
712 | #else |
|
|
713 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | #if __clang__ && defined __has_extension |
|
|
717 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
718 | #else |
|
|
719 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | #define ECB_CPP (__cplusplus+0) |
|
|
723 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
724 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
725 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
726 | |
|
|
727 | #if ECB_CPP |
|
|
728 | #define ECB_C 0 |
|
|
729 | #define ECB_STDC_VERSION 0 |
|
|
730 | #else |
|
|
731 | #define ECB_C 1 |
|
|
732 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
736 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
737 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
738 | |
|
|
739 | #if ECB_CPP |
|
|
740 | #define ECB_EXTERN_C extern "C" |
|
|
741 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
742 | #define ECB_EXTERN_C_END } |
|
|
743 | #else |
|
|
744 | #define ECB_EXTERN_C extern |
|
|
745 | #define ECB_EXTERN_C_BEG |
|
|
746 | #define ECB_EXTERN_C_END |
543 | #endif |
747 | #endif |
544 | |
748 | |
545 | /*****************************************************************************/ |
749 | /*****************************************************************************/ |
546 | |
750 | |
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
751 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
548 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
752 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
549 | |
753 | |
550 | #if ECB_NO_THREADS |
754 | #if ECB_NO_THREADS |
551 | # define ECB_NO_SMP 1 |
755 | #define ECB_NO_SMP 1 |
552 | #endif |
756 | #endif |
553 | |
757 | |
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
758 | #if ECB_NO_SMP |
555 | #define ECB_MEMORY_FENCE do { } while (0) |
759 | #define ECB_MEMORY_FENCE do { } while (0) |
556 | #endif |
760 | #endif |
557 | |
761 | |
|
|
762 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
763 | #if __xlC__ && ECB_CPP |
|
|
764 | #include <builtins.h> |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #if 1400 <= _MSC_VER |
|
|
768 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
769 | #endif |
|
|
770 | |
558 | #ifndef ECB_MEMORY_FENCE |
771 | #ifndef ECB_MEMORY_FENCE |
559 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
772 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
773 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
560 | #if __i386 || __i386__ |
774 | #if __i386 || __i386__ |
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
776 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
777 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
778 | #elif ECB_GCC_AMD64 |
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
779 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
780 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
781 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
782 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
783 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
784 | #elif defined __ARM_ARCH_2__ \ |
|
|
785 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
786 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
787 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
788 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
789 | || defined __ARM_ARCH_5TEJ__ |
|
|
790 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
570 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
791 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
571 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
792 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
793 | || defined __ARM_ARCH_6T2__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
794 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
573 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
795 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
574 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
796 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
797 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
576 | #elif __sparc || __sparc__ |
798 | #elif __aarch64__ |
|
|
799 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
800 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
801 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
802 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
803 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
580 | #elif defined(__s390__) || defined(__s390x__) |
804 | #elif defined __s390__ || defined __s390x__ |
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
805 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
582 | #elif defined(__mips__) |
806 | #elif defined __mips__ |
|
|
807 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
808 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
809 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
810 | #elif defined __alpha__ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
811 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
812 | #elif defined __hppa__ |
|
|
813 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
814 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
815 | #elif defined __ia64__ |
|
|
816 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
817 | #elif defined __m68k__ |
|
|
818 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
819 | #elif defined __m88k__ |
|
|
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
821 | #elif defined __sh__ |
|
|
822 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
584 | #endif |
823 | #endif |
585 | #endif |
824 | #endif |
586 | #endif |
825 | #endif |
587 | |
826 | |
588 | #ifndef ECB_MEMORY_FENCE |
827 | #ifndef ECB_MEMORY_FENCE |
|
|
828 | #if ECB_GCC_VERSION(4,7) |
|
|
829 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
830 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
831 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
832 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
833 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
834 | |
|
|
835 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
836 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
837 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
838 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
839 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
840 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
841 | |
589 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
842 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
590 | #define ECB_MEMORY_FENCE __sync_synchronize () |
843 | #define ECB_MEMORY_FENCE __sync_synchronize () |
591 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
844 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
592 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
845 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
846 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
847 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
593 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
850 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
594 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
851 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
595 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
852 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
596 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
853 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
597 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
854 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
598 | #elif defined(_WIN32) |
855 | #elif defined _WIN32 |
599 | #include <WinNT.h> |
856 | #include <WinNT.h> |
600 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
857 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
601 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
858 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
602 | #include <mbarrier.h> |
859 | #include <mbarrier.h> |
603 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
860 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
604 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
861 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
605 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
862 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
864 | #elif __xlC__ |
|
|
865 | #define ECB_MEMORY_FENCE __sync () |
|
|
866 | #endif |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #ifndef ECB_MEMORY_FENCE |
|
|
870 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
871 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
872 | /* not just C11 atomics and atomic accesses */ |
|
|
873 | #include <stdatomic.h> |
|
|
874 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
875 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
606 | #endif |
877 | #endif |
607 | #endif |
878 | #endif |
608 | |
879 | |
609 | #ifndef ECB_MEMORY_FENCE |
880 | #ifndef ECB_MEMORY_FENCE |
610 | #if !ECB_AVOID_PTHREADS |
881 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
622 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
893 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
623 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
894 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
624 | #endif |
895 | #endif |
625 | #endif |
896 | #endif |
626 | |
897 | |
627 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
898 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
628 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
899 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
629 | #endif |
900 | #endif |
630 | |
901 | |
631 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
902 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
632 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
903 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
633 | #endif |
904 | #endif |
634 | |
905 | |
|
|
906 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
907 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
908 | #endif |
|
|
909 | |
635 | /*****************************************************************************/ |
910 | /*****************************************************************************/ |
636 | |
911 | |
637 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
912 | #if ECB_CPP |
638 | |
|
|
639 | #if __cplusplus |
|
|
640 | #define ecb_inline static inline |
913 | #define ecb_inline static inline |
641 | #elif ECB_GCC_VERSION(2,5) |
914 | #elif ECB_GCC_VERSION(2,5) |
642 | #define ecb_inline static __inline__ |
915 | #define ecb_inline static __inline__ |
643 | #elif ECB_C99 |
916 | #elif ECB_C99 |
644 | #define ecb_inline static inline |
917 | #define ecb_inline static inline |
… | |
… | |
658 | |
931 | |
659 | #define ECB_CONCAT_(a, b) a ## b |
932 | #define ECB_CONCAT_(a, b) a ## b |
660 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
933 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
661 | #define ECB_STRINGIFY_(a) # a |
934 | #define ECB_STRINGIFY_(a) # a |
662 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
935 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
936 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
663 | |
937 | |
664 | #define ecb_function_ ecb_inline |
938 | #define ecb_function_ ecb_inline |
665 | |
939 | |
666 | #if ECB_GCC_VERSION(3,1) |
940 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
667 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
941 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
942 | #else |
|
|
943 | #define ecb_attribute(attrlist) |
|
|
944 | #endif |
|
|
945 | |
|
|
946 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
668 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
947 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
948 | #else |
|
|
949 | /* possible C11 impl for integral types |
|
|
950 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
951 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
952 | |
|
|
953 | #define ecb_is_constant(expr) 0 |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
669 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
957 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
958 | #else |
|
|
959 | #define ecb_expect(expr,value) (expr) |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
670 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
963 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
671 | #else |
964 | #else |
672 | #define ecb_attribute(attrlist) |
|
|
673 | #define ecb_is_constant(expr) 0 |
|
|
674 | #define ecb_expect(expr,value) (expr) |
|
|
675 | #define ecb_prefetch(addr,rw,locality) |
965 | #define ecb_prefetch(addr,rw,locality) |
676 | #endif |
966 | #endif |
677 | |
967 | |
678 | /* no emulation for ecb_decltype */ |
968 | /* no emulation for ecb_decltype */ |
679 | #if ECB_GCC_VERSION(4,5) |
969 | #if ECB_CPP11 |
|
|
970 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
971 | template<class T> struct ecb_decltype_t { typedef T type; }; |
680 | #define ecb_decltype(x) __decltype(x) |
972 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
681 | #elif ECB_GCC_VERSION(3,0) |
973 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
682 | #define ecb_decltype(x) __typeof(x) |
974 | #define ecb_decltype(x) __typeof__ (x) |
683 | #endif |
975 | #endif |
684 | |
976 | |
|
|
977 | #if _MSC_VER >= 1300 |
|
|
978 | #define ecb_deprecated __declspec (deprecated) |
|
|
979 | #else |
|
|
980 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
981 | #endif |
|
|
982 | |
|
|
983 | #if _MSC_VER >= 1500 |
|
|
984 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
985 | #elif ECB_GCC_VERSION(4,5) |
|
|
986 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
987 | #else |
|
|
988 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
989 | #endif |
|
|
990 | |
|
|
991 | #if _MSC_VER >= 1400 |
|
|
992 | #define ecb_noinline __declspec (noinline) |
|
|
993 | #else |
685 | #define ecb_noinline ecb_attribute ((__noinline__)) |
994 | #define ecb_noinline ecb_attribute ((__noinline__)) |
686 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
995 | #endif |
|
|
996 | |
687 | #define ecb_unused ecb_attribute ((__unused__)) |
997 | #define ecb_unused ecb_attribute ((__unused__)) |
688 | #define ecb_const ecb_attribute ((__const__)) |
998 | #define ecb_const ecb_attribute ((__const__)) |
689 | #define ecb_pure ecb_attribute ((__pure__)) |
999 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
1000 | |
|
|
1001 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1002 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
1003 | #define ecb_noreturn _Noreturn |
|
|
1004 | #elif ECB_CPP11 |
|
|
1005 | #define ecb_noreturn [[noreturn]] |
|
|
1006 | #elif _MSC_VER >= 1200 |
|
|
1007 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1008 | #define ecb_noreturn __declspec (noreturn) |
|
|
1009 | #else |
|
|
1010 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
1011 | #endif |
690 | |
1012 | |
691 | #if ECB_GCC_VERSION(4,3) |
1013 | #if ECB_GCC_VERSION(4,3) |
692 | #define ecb_artificial ecb_attribute ((__artificial__)) |
1014 | #define ecb_artificial ecb_attribute ((__artificial__)) |
693 | #define ecb_hot ecb_attribute ((__hot__)) |
1015 | #define ecb_hot ecb_attribute ((__hot__)) |
694 | #define ecb_cold ecb_attribute ((__cold__)) |
1016 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
706 | /* for compatibility to the rest of the world */ |
1028 | /* for compatibility to the rest of the world */ |
707 | #define ecb_likely(expr) ecb_expect_true (expr) |
1029 | #define ecb_likely(expr) ecb_expect_true (expr) |
708 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
1030 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
709 | |
1031 | |
710 | /* count trailing zero bits and count # of one bits */ |
1032 | /* count trailing zero bits and count # of one bits */ |
711 | #if ECB_GCC_VERSION(3,4) |
1033 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1034 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1035 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1036 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
712 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
1037 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
713 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
1038 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
714 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
1039 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
715 | #define ecb_ctz32(x) __builtin_ctz (x) |
1040 | #define ecb_ctz32(x) __builtin_ctz (x) |
716 | #define ecb_ctz64(x) __builtin_ctzll (x) |
1041 | #define ecb_ctz64(x) __builtin_ctzll (x) |
717 | #define ecb_popcount32(x) __builtin_popcount (x) |
1042 | #define ecb_popcount32(x) __builtin_popcount (x) |
718 | /* no popcountll */ |
1043 | /* no popcountll */ |
719 | #else |
1044 | #else |
720 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
1045 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
721 | ecb_function_ int |
1046 | ecb_function_ ecb_const int |
722 | ecb_ctz32 (uint32_t x) |
1047 | ecb_ctz32 (uint32_t x) |
723 | { |
1048 | { |
|
|
1049 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1050 | unsigned long r; |
|
|
1051 | _BitScanForward (&r, x); |
|
|
1052 | return (int)r; |
|
|
1053 | #else |
724 | int r = 0; |
1054 | int r = 0; |
725 | |
1055 | |
726 | x &= ~x + 1; /* this isolates the lowest bit */ |
1056 | x &= ~x + 1; /* this isolates the lowest bit */ |
727 | |
1057 | |
728 | #if ECB_branchless_on_i386 |
1058 | #if ECB_branchless_on_i386 |
… | |
… | |
738 | if (x & 0xff00ff00) r += 8; |
1068 | if (x & 0xff00ff00) r += 8; |
739 | if (x & 0xffff0000) r += 16; |
1069 | if (x & 0xffff0000) r += 16; |
740 | #endif |
1070 | #endif |
741 | |
1071 | |
742 | return r; |
1072 | return r; |
|
|
1073 | #endif |
743 | } |
1074 | } |
744 | |
1075 | |
745 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1076 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
746 | ecb_function_ int |
1077 | ecb_function_ ecb_const int |
747 | ecb_ctz64 (uint64_t x) |
1078 | ecb_ctz64 (uint64_t x) |
748 | { |
1079 | { |
|
|
1080 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1081 | unsigned long r; |
|
|
1082 | _BitScanForward64 (&r, x); |
|
|
1083 | return (int)r; |
|
|
1084 | #else |
749 | int shift = x & 0xffffffffU ? 0 : 32; |
1085 | int shift = x & 0xffffffff ? 0 : 32; |
750 | return ecb_ctz32 (x >> shift) + shift; |
1086 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1087 | #endif |
751 | } |
1088 | } |
752 | |
1089 | |
753 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1090 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
754 | ecb_function_ int |
1091 | ecb_function_ ecb_const int |
755 | ecb_popcount32 (uint32_t x) |
1092 | ecb_popcount32 (uint32_t x) |
756 | { |
1093 | { |
757 | x -= (x >> 1) & 0x55555555; |
1094 | x -= (x >> 1) & 0x55555555; |
758 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1095 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
759 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1096 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
760 | x *= 0x01010101; |
1097 | x *= 0x01010101; |
761 | |
1098 | |
762 | return x >> 24; |
1099 | return x >> 24; |
763 | } |
1100 | } |
764 | |
1101 | |
765 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1102 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
766 | ecb_function_ int ecb_ld32 (uint32_t x) |
1103 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
767 | { |
1104 | { |
|
|
1105 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1106 | unsigned long r; |
|
|
1107 | _BitScanReverse (&r, x); |
|
|
1108 | return (int)r; |
|
|
1109 | #else |
768 | int r = 0; |
1110 | int r = 0; |
769 | |
1111 | |
770 | if (x >> 16) { x >>= 16; r += 16; } |
1112 | if (x >> 16) { x >>= 16; r += 16; } |
771 | if (x >> 8) { x >>= 8; r += 8; } |
1113 | if (x >> 8) { x >>= 8; r += 8; } |
772 | if (x >> 4) { x >>= 4; r += 4; } |
1114 | if (x >> 4) { x >>= 4; r += 4; } |
773 | if (x >> 2) { x >>= 2; r += 2; } |
1115 | if (x >> 2) { x >>= 2; r += 2; } |
774 | if (x >> 1) { r += 1; } |
1116 | if (x >> 1) { r += 1; } |
775 | |
1117 | |
776 | return r; |
1118 | return r; |
|
|
1119 | #endif |
777 | } |
1120 | } |
778 | |
1121 | |
779 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1122 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
780 | ecb_function_ int ecb_ld64 (uint64_t x) |
1123 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
781 | { |
1124 | { |
|
|
1125 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1126 | unsigned long r; |
|
|
1127 | _BitScanReverse64 (&r, x); |
|
|
1128 | return (int)r; |
|
|
1129 | #else |
782 | int r = 0; |
1130 | int r = 0; |
783 | |
1131 | |
784 | if (x >> 32) { x >>= 32; r += 32; } |
1132 | if (x >> 32) { x >>= 32; r += 32; } |
785 | |
1133 | |
786 | return r + ecb_ld32 (x); |
1134 | return r + ecb_ld32 (x); |
|
|
1135 | #endif |
787 | } |
1136 | } |
788 | #endif |
1137 | #endif |
789 | |
1138 | |
|
|
1139 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1140 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1141 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1142 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1143 | |
790 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1144 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
791 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1145 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
792 | { |
1146 | { |
793 | return ( (x * 0x0802U & 0x22110U) |
1147 | return ( (x * 0x0802U & 0x22110U) |
794 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1148 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
795 | } |
1149 | } |
796 | |
1150 | |
797 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1151 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
798 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1152 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
799 | { |
1153 | { |
800 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1154 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
801 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1155 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
802 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1156 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
803 | x = ( x >> 8 ) | ( x << 8); |
1157 | x = ( x >> 8 ) | ( x << 8); |
804 | |
1158 | |
805 | return x; |
1159 | return x; |
806 | } |
1160 | } |
807 | |
1161 | |
808 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1162 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
809 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1163 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
810 | { |
1164 | { |
811 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1165 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
812 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1166 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
813 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1167 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
814 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1168 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
817 | return x; |
1171 | return x; |
818 | } |
1172 | } |
819 | |
1173 | |
820 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1174 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
821 | /* so for this version we are lazy */ |
1175 | /* so for this version we are lazy */ |
822 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1176 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
823 | ecb_function_ int |
1177 | ecb_function_ ecb_const int |
824 | ecb_popcount64 (uint64_t x) |
1178 | ecb_popcount64 (uint64_t x) |
825 | { |
1179 | { |
826 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1180 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
827 | } |
1181 | } |
828 | |
1182 | |
829 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1183 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
830 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1184 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
831 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1185 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
832 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1186 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
833 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1187 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
834 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1188 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
835 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1189 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
836 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1190 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
837 | |
1191 | |
838 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1192 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
839 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1193 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
840 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1194 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
841 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1195 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
842 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1196 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
843 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1197 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
844 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1198 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
845 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1199 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
846 | |
1200 | |
847 | #if ECB_GCC_VERSION(4,3) |
1201 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1202 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1203 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1204 | #else |
848 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1205 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1206 | #endif |
849 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1207 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
850 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1208 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1209 | #elif _MSC_VER |
|
|
1210 | #include <stdlib.h> |
|
|
1211 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1212 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1213 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
851 | #else |
1214 | #else |
852 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1215 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
853 | ecb_function_ uint16_t |
1216 | ecb_function_ ecb_const uint16_t |
854 | ecb_bswap16 (uint16_t x) |
1217 | ecb_bswap16 (uint16_t x) |
855 | { |
1218 | { |
856 | return ecb_rotl16 (x, 8); |
1219 | return ecb_rotl16 (x, 8); |
857 | } |
1220 | } |
858 | |
1221 | |
859 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1222 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
860 | ecb_function_ uint32_t |
1223 | ecb_function_ ecb_const uint32_t |
861 | ecb_bswap32 (uint32_t x) |
1224 | ecb_bswap32 (uint32_t x) |
862 | { |
1225 | { |
863 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1226 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
864 | } |
1227 | } |
865 | |
1228 | |
866 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1229 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
867 | ecb_function_ uint64_t |
1230 | ecb_function_ ecb_const uint64_t |
868 | ecb_bswap64 (uint64_t x) |
1231 | ecb_bswap64 (uint64_t x) |
869 | { |
1232 | { |
870 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1233 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
871 | } |
1234 | } |
872 | #endif |
1235 | #endif |
873 | |
1236 | |
874 | #if ECB_GCC_VERSION(4,5) |
1237 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
875 | #define ecb_unreachable() __builtin_unreachable () |
1238 | #define ecb_unreachable() __builtin_unreachable () |
876 | #else |
1239 | #else |
877 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1240 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
878 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1241 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
879 | ecb_inline void ecb_unreachable (void) { } |
1242 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
880 | #endif |
1243 | #endif |
881 | |
1244 | |
882 | /* try to tell the compiler that some condition is definitely true */ |
1245 | /* try to tell the compiler that some condition is definitely true */ |
883 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1246 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
884 | |
1247 | |
885 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1248 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
886 | ecb_inline unsigned char |
1249 | ecb_inline ecb_const uint32_t |
887 | ecb_byteorder_helper (void) |
1250 | ecb_byteorder_helper (void) |
888 | { |
1251 | { |
889 | const uint32_t u = 0x11223344; |
1252 | /* the union code still generates code under pressure in gcc, */ |
890 | return *(unsigned char *)&u; |
1253 | /* but less than using pointers, and always seems to */ |
|
|
1254 | /* successfully return a constant. */ |
|
|
1255 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1256 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1257 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1258 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1259 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1260 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1261 | return 0x44332211; |
|
|
1262 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1263 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1264 | #define ECB_BIG_ENDIAN 1 |
|
|
1265 | return 0x11223344; |
|
|
1266 | #else |
|
|
1267 | union |
|
|
1268 | { |
|
|
1269 | uint8_t c[4]; |
|
|
1270 | uint32_t u; |
|
|
1271 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1272 | return u.u; |
|
|
1273 | #endif |
891 | } |
1274 | } |
892 | |
1275 | |
893 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1276 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
894 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1277 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
895 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1278 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
896 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1279 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
897 | |
1280 | |
898 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1281 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
899 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1282 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
900 | #else |
1283 | #else |
901 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1284 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
902 | #endif |
1285 | #endif |
903 | |
1286 | |
904 | #if __cplusplus |
1287 | #if ECB_CPP |
905 | template<typename T> |
1288 | template<typename T> |
906 | static inline T ecb_div_rd (T val, T div) |
1289 | static inline T ecb_div_rd (T val, T div) |
907 | { |
1290 | { |
908 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1291 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
909 | } |
1292 | } |
… | |
… | |
926 | } |
1309 | } |
927 | #else |
1310 | #else |
928 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1311 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
929 | #endif |
1312 | #endif |
930 | |
1313 | |
|
|
1314 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1315 | ecb_function_ ecb_const uint32_t |
|
|
1316 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1317 | { |
|
|
1318 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1319 | int e = (x >> 10) & 0x001f; |
|
|
1320 | unsigned int m = x & 0x03ff; |
|
|
1321 | |
|
|
1322 | if (ecb_expect_false (e == 31)) |
|
|
1323 | /* infinity or NaN */ |
|
|
1324 | e = 255 - (127 - 15); |
|
|
1325 | else if (ecb_expect_false (!e)) |
|
|
1326 | { |
|
|
1327 | if (ecb_expect_true (!m)) |
|
|
1328 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1329 | e = 0 - (127 - 15); |
|
|
1330 | else |
|
|
1331 | { |
|
|
1332 | /* subnormal, renormalise */ |
|
|
1333 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1334 | |
|
|
1335 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1336 | e -= s - 1; |
|
|
1337 | } |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1341 | e += 127 - 15; |
|
|
1342 | |
|
|
1343 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1347 | ecb_function_ ecb_const uint16_t |
|
|
1348 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1349 | { |
|
|
1350 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1351 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1352 | unsigned int m = x & 0x007fffff; |
|
|
1353 | |
|
|
1354 | x &= 0x7fffffff; |
|
|
1355 | |
|
|
1356 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1357 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1358 | { |
|
|
1359 | /* mantissa round-to-even */ |
|
|
1360 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1361 | |
|
|
1362 | /* handle overflow */ |
|
|
1363 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1364 | { |
|
|
1365 | m >>= 1; |
|
|
1366 | e += 1; |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /* handle large numbers and infinity */ |
|
|
1373 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1374 | return s | 0x7c00; |
|
|
1375 | |
|
|
1376 | /* handle zero, subnormals and small numbers */ |
|
|
1377 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1378 | { |
|
|
1379 | /* zero */ |
|
|
1380 | if (ecb_expect_true (!x)) |
|
|
1381 | return s; |
|
|
1382 | |
|
|
1383 | /* handle subnormals */ |
|
|
1384 | |
|
|
1385 | /* too small, will be zero */ |
|
|
1386 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1387 | return s; |
|
|
1388 | |
|
|
1389 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1390 | |
|
|
1391 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1392 | { |
|
|
1393 | unsigned int bits = 14 - e; |
|
|
1394 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1395 | unsigned int even = (m >> bits) & 1; |
|
|
1396 | |
|
|
1397 | /* if this overflows, we will end up with a normalised number */ |
|
|
1398 | m = (m + half + even) >> bits; |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | return s | m; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1405 | m >>= 13; |
|
|
1406 | |
|
|
1407 | return s | 0x7c00 | m | !m; |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | /*******************************************************************************/ |
|
|
1411 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1412 | |
|
|
1413 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1414 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1415 | #if 0 \ |
|
|
1416 | || __i386 || __i386__ \ |
|
|
1417 | || ECB_GCC_AMD64 \ |
|
|
1418 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1419 | || defined __s390__ || defined __s390x__ \ |
|
|
1420 | || defined __mips__ \ |
|
|
1421 | || defined __alpha__ \ |
|
|
1422 | || defined __hppa__ \ |
|
|
1423 | || defined __ia64__ \ |
|
|
1424 | || defined __m68k__ \ |
|
|
1425 | || defined __m88k__ \ |
|
|
1426 | || defined __sh__ \ |
|
|
1427 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1428 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1429 | || defined __aarch64__ |
|
|
1430 | #define ECB_STDFP 1 |
|
|
1431 | #include <string.h> /* for memcpy */ |
|
|
1432 | #else |
|
|
1433 | #define ECB_STDFP 0 |
|
|
1434 | #endif |
|
|
1435 | |
|
|
1436 | #ifndef ECB_NO_LIBM |
|
|
1437 | |
|
|
1438 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1439 | |
|
|
1440 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1441 | #ifdef INFINITY |
|
|
1442 | #define ECB_INFINITY INFINITY |
|
|
1443 | #else |
|
|
1444 | #define ECB_INFINITY HUGE_VAL |
|
|
1445 | #endif |
|
|
1446 | |
|
|
1447 | #ifdef NAN |
|
|
1448 | #define ECB_NAN NAN |
|
|
1449 | #else |
|
|
1450 | #define ECB_NAN ECB_INFINITY |
|
|
1451 | #endif |
|
|
1452 | |
|
|
1453 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1454 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1455 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1456 | #else |
|
|
1457 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1458 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1459 | #endif |
|
|
1460 | |
|
|
1461 | /* convert a float to ieee single/binary32 */ |
|
|
1462 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1463 | ecb_function_ ecb_const uint32_t |
|
|
1464 | ecb_float_to_binary32 (float x) |
|
|
1465 | { |
|
|
1466 | uint32_t r; |
|
|
1467 | |
|
|
1468 | #if ECB_STDFP |
|
|
1469 | memcpy (&r, &x, 4); |
|
|
1470 | #else |
|
|
1471 | /* slow emulation, works for anything but -0 */ |
|
|
1472 | uint32_t m; |
|
|
1473 | int e; |
|
|
1474 | |
|
|
1475 | if (x == 0e0f ) return 0x00000000U; |
|
|
1476 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1477 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1478 | if (x != x ) return 0x7fbfffffU; |
|
|
1479 | |
|
|
1480 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1481 | |
|
|
1482 | r = m & 0x80000000U; |
|
|
1483 | |
|
|
1484 | if (r) |
|
|
1485 | m = -m; |
|
|
1486 | |
|
|
1487 | if (e <= -126) |
|
|
1488 | { |
|
|
1489 | m &= 0xffffffU; |
|
|
1490 | m >>= (-125 - e); |
|
|
1491 | e = -126; |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | r |= (e + 126) << 23; |
|
|
1495 | r |= m & 0x7fffffU; |
|
|
1496 | #endif |
|
|
1497 | |
|
|
1498 | return r; |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | /* converts an ieee single/binary32 to a float */ |
|
|
1502 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1503 | ecb_function_ ecb_const float |
|
|
1504 | ecb_binary32_to_float (uint32_t x) |
|
|
1505 | { |
|
|
1506 | float r; |
|
|
1507 | |
|
|
1508 | #if ECB_STDFP |
|
|
1509 | memcpy (&r, &x, 4); |
|
|
1510 | #else |
|
|
1511 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1512 | int neg = x >> 31; |
|
|
1513 | int e = (x >> 23) & 0xffU; |
|
|
1514 | |
|
|
1515 | x &= 0x7fffffU; |
|
|
1516 | |
|
|
1517 | if (e) |
|
|
1518 | x |= 0x800000U; |
|
|
1519 | else |
|
|
1520 | e = 1; |
|
|
1521 | |
|
|
1522 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1523 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1524 | |
|
|
1525 | r = neg ? -r : r; |
|
|
1526 | #endif |
|
|
1527 | |
|
|
1528 | return r; |
|
|
1529 | } |
|
|
1530 | |
|
|
1531 | /* convert a double to ieee double/binary64 */ |
|
|
1532 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1533 | ecb_function_ ecb_const uint64_t |
|
|
1534 | ecb_double_to_binary64 (double x) |
|
|
1535 | { |
|
|
1536 | uint64_t r; |
|
|
1537 | |
|
|
1538 | #if ECB_STDFP |
|
|
1539 | memcpy (&r, &x, 8); |
|
|
1540 | #else |
|
|
1541 | /* slow emulation, works for anything but -0 */ |
|
|
1542 | uint64_t m; |
|
|
1543 | int e; |
|
|
1544 | |
|
|
1545 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1546 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1547 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1548 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1549 | |
|
|
1550 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1551 | |
|
|
1552 | r = m & 0x8000000000000000;; |
|
|
1553 | |
|
|
1554 | if (r) |
|
|
1555 | m = -m; |
|
|
1556 | |
|
|
1557 | if (e <= -1022) |
|
|
1558 | { |
|
|
1559 | m &= 0x1fffffffffffffU; |
|
|
1560 | m >>= (-1021 - e); |
|
|
1561 | e = -1022; |
|
|
1562 | } |
|
|
1563 | |
|
|
1564 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1565 | r |= m & 0xfffffffffffffU; |
|
|
1566 | #endif |
|
|
1567 | |
|
|
1568 | return r; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | /* converts an ieee double/binary64 to a double */ |
|
|
1572 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1573 | ecb_function_ ecb_const double |
|
|
1574 | ecb_binary64_to_double (uint64_t x) |
|
|
1575 | { |
|
|
1576 | double r; |
|
|
1577 | |
|
|
1578 | #if ECB_STDFP |
|
|
1579 | memcpy (&r, &x, 8); |
|
|
1580 | #else |
|
|
1581 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1582 | int neg = x >> 63; |
|
|
1583 | int e = (x >> 52) & 0x7ffU; |
|
|
1584 | |
|
|
1585 | x &= 0xfffffffffffffU; |
|
|
1586 | |
|
|
1587 | if (e) |
|
|
1588 | x |= 0x10000000000000U; |
|
|
1589 | else |
|
|
1590 | e = 1; |
|
|
1591 | |
|
|
1592 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1593 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1594 | |
|
|
1595 | r = neg ? -r : r; |
|
|
1596 | #endif |
|
|
1597 | |
|
|
1598 | return r; |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | /* convert a float to ieee half/binary16 */ |
|
|
1602 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1603 | ecb_function_ ecb_const uint16_t |
|
|
1604 | ecb_float_to_binary16 (float x) |
|
|
1605 | { |
|
|
1606 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1607 | } |
|
|
1608 | |
|
|
1609 | /* convert an ieee half/binary16 to float */ |
|
|
1610 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1611 | ecb_function_ ecb_const float |
|
|
1612 | ecb_binary16_to_float (uint16_t x) |
|
|
1613 | { |
|
|
1614 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | #endif |
|
|
1618 | |
931 | #endif |
1619 | #endif |
932 | |
1620 | |
933 | /* ECB.H END */ |
1621 | /* ECB.H END */ |
934 | |
1622 | |
935 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1623 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
936 | /* if your architecture doesn't need memory fences, e.g. because it is |
1624 | /* if your architecture doesn't need memory fences, e.g. because it is |
937 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1625 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
938 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1626 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
939 | * libev, in which cases the memory fences become nops. |
1627 | * libev, in which cases the memory fences become nops. |
940 | * alternatively, you can remove this #error and link against libpthread, |
1628 | * alternatively, you can remove this #error and link against libpthread, |
941 | * which will then provide the memory fences. |
1629 | * which will then provide the memory fences. |
942 | */ |
1630 | */ |
943 | # error "memory fences not defined for your architecture, please report" |
1631 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
947 | # define ECB_MEMORY_FENCE do { } while (0) |
1635 | # define ECB_MEMORY_FENCE do { } while (0) |
948 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1636 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
949 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1637 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
950 | #endif |
1638 | #endif |
951 | |
1639 | |
952 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
953 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
954 | #define noinline ecb_noinline |
|
|
955 | |
|
|
956 | #define inline_size ecb_inline |
1640 | #define inline_size ecb_inline |
957 | |
1641 | |
958 | #if EV_FEATURE_CODE |
1642 | #if EV_FEATURE_CODE |
959 | # define inline_speed ecb_inline |
1643 | # define inline_speed ecb_inline |
960 | #else |
1644 | #else |
961 | # define inline_speed static noinline |
1645 | # define inline_speed ecb_noinline static |
962 | #endif |
1646 | #endif |
|
|
1647 | |
|
|
1648 | /*****************************************************************************/ |
|
|
1649 | /* raw syscall wrappers */ |
|
|
1650 | |
|
|
1651 | #if EV_NEED_SYSCALL |
|
|
1652 | |
|
|
1653 | #include <sys/syscall.h> |
|
|
1654 | |
|
|
1655 | /* |
|
|
1656 | * define some syscall wrappers for common architectures |
|
|
1657 | * this is mostly for nice looks during debugging, not performance. |
|
|
1658 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1659 | * enough for linux aio. |
|
|
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1662 | */ |
|
|
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1664 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1665 | |
|
|
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1667 | ({ \ |
|
|
1668 | long res; \ |
|
|
1669 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1670 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1671 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1672 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1673 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1674 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1675 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1676 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1677 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1678 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1679 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1680 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1681 | __asm__ __volatile__ ( \ |
|
|
1682 | "syscall\n\t" \ |
|
|
1683 | : "=a" (res) \ |
|
|
1684 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1685 | : "cc", "r11", "cx", "memory"); \ |
|
|
1686 | errno = -res; \ |
|
|
1687 | res; \ |
|
|
1688 | }) |
|
|
1689 | |
|
|
1690 | #endif |
|
|
1691 | |
|
|
1692 | #ifdef ev_syscall |
|
|
1693 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1694 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1695 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1696 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1697 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1698 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1699 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1700 | #else |
|
|
1701 | #define ev_syscall0(nr) syscall (nr) |
|
|
1702 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1703 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1704 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1705 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1706 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1707 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | #endif |
|
|
1711 | |
|
|
1712 | /*****************************************************************************/ |
963 | |
1713 | |
964 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
965 | |
1715 | |
966 | #if EV_MINPRI == EV_MAXPRI |
1716 | #if EV_MINPRI == EV_MAXPRI |
967 | # define ABSPRI(w) (((W)w), 0) |
1717 | # define ABSPRI(w) (((W)w), 0) |
968 | #else |
1718 | #else |
969 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1719 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
970 | #endif |
1720 | #endif |
971 | |
1721 | |
972 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1722 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
973 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
974 | |
1723 | |
975 | typedef ev_watcher *W; |
1724 | typedef ev_watcher *W; |
976 | typedef ev_watcher_list *WL; |
1725 | typedef ev_watcher_list *WL; |
977 | typedef ev_watcher_time *WT; |
1726 | typedef ev_watcher_time *WT; |
978 | |
1727 | |
… | |
… | |
1003 | # include "ev_win32.c" |
1752 | # include "ev_win32.c" |
1004 | #endif |
1753 | #endif |
1005 | |
1754 | |
1006 | /*****************************************************************************/ |
1755 | /*****************************************************************************/ |
1007 | |
1756 | |
|
|
1757 | #if EV_USE_LINUXAIO |
|
|
1758 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1759 | #endif |
|
|
1760 | |
1008 | /* define a suitable floor function (only used by periodics atm) */ |
1761 | /* define a suitable floor function (only used by periodics atm) */ |
1009 | |
1762 | |
1010 | #if EV_USE_FLOOR |
1763 | #if EV_USE_FLOOR |
1011 | # include <math.h> |
1764 | # include <math.h> |
1012 | # define ev_floor(v) floor (v) |
1765 | # define ev_floor(v) floor (v) |
1013 | #else |
1766 | #else |
1014 | |
1767 | |
1015 | #include <float.h> |
1768 | #include <float.h> |
1016 | |
1769 | |
1017 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1770 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1771 | ecb_noinline |
1018 | static ev_tstamp noinline |
1772 | static ev_tstamp |
1019 | ev_floor (ev_tstamp v) |
1773 | ev_floor (ev_tstamp v) |
1020 | { |
1774 | { |
1021 | /* the choice of shift factor is not terribly important */ |
1775 | /* the choice of shift factor is not terribly important */ |
1022 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1776 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1023 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1024 | #else |
1778 | #else |
1025 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1026 | #endif |
1780 | #endif |
1027 | |
1781 | |
|
|
1782 | /* special treatment for negative arguments */ |
|
|
1783 | if (ecb_expect_false (v < 0.)) |
|
|
1784 | { |
|
|
1785 | ev_tstamp f = -ev_floor (-v); |
|
|
1786 | |
|
|
1787 | return f - (f == v ? 0 : 1); |
|
|
1788 | } |
|
|
1789 | |
1028 | /* argument too large for an unsigned long? */ |
1790 | /* argument too large for an unsigned long? then reduce it */ |
1029 | if (expect_false (v >= shift)) |
1791 | if (ecb_expect_false (v >= shift)) |
1030 | { |
1792 | { |
1031 | ev_tstamp f; |
1793 | ev_tstamp f; |
1032 | |
1794 | |
1033 | if (v == v - 1.) |
1795 | if (v == v - 1.) |
1034 | return v; /* very large number */ |
1796 | return v; /* very large numbers are assumed to be integer */ |
1035 | |
1797 | |
1036 | f = shift * ev_floor (v * (1. / shift)); |
1798 | f = shift * ev_floor (v * (1. / shift)); |
1037 | return f + ev_floor (v - f); |
1799 | return f + ev_floor (v - f); |
1038 | } |
1800 | } |
1039 | |
1801 | |
1040 | /* special treatment for negative args? */ |
|
|
1041 | if (expect_false (v < 0.)) |
|
|
1042 | { |
|
|
1043 | ev_tstamp f = -ev_floor (-v); |
|
|
1044 | |
|
|
1045 | return f - (f == v ? 0 : 1); |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | /* fits into an unsigned long */ |
1802 | /* fits into an unsigned long */ |
1049 | return (unsigned long)v; |
1803 | return (unsigned long)v; |
1050 | } |
1804 | } |
1051 | |
1805 | |
1052 | #endif |
1806 | #endif |
… | |
… | |
1055 | |
1809 | |
1056 | #ifdef __linux |
1810 | #ifdef __linux |
1057 | # include <sys/utsname.h> |
1811 | # include <sys/utsname.h> |
1058 | #endif |
1812 | #endif |
1059 | |
1813 | |
1060 | static unsigned int noinline ecb_cold |
1814 | ecb_noinline ecb_cold |
|
|
1815 | static unsigned int |
1061 | ev_linux_version (void) |
1816 | ev_linux_version (void) |
1062 | { |
1817 | { |
1063 | #ifdef __linux |
1818 | #ifdef __linux |
1064 | unsigned int v = 0; |
1819 | unsigned int v = 0; |
1065 | struct utsname buf; |
1820 | struct utsname buf; |
… | |
… | |
1094 | } |
1849 | } |
1095 | |
1850 | |
1096 | /*****************************************************************************/ |
1851 | /*****************************************************************************/ |
1097 | |
1852 | |
1098 | #if EV_AVOID_STDIO |
1853 | #if EV_AVOID_STDIO |
1099 | static void noinline ecb_cold |
1854 | ecb_noinline ecb_cold |
|
|
1855 | static void |
1100 | ev_printerr (const char *msg) |
1856 | ev_printerr (const char *msg) |
1101 | { |
1857 | { |
1102 | write (STDERR_FILENO, msg, strlen (msg)); |
1858 | write (STDERR_FILENO, msg, strlen (msg)); |
1103 | } |
1859 | } |
1104 | #endif |
1860 | #endif |
1105 | |
1861 | |
1106 | static void (*syserr_cb)(const char *msg); |
1862 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1107 | |
1863 | |
1108 | void ecb_cold |
1864 | ecb_cold |
|
|
1865 | void |
1109 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1866 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1110 | { |
1867 | { |
1111 | syserr_cb = cb; |
1868 | syserr_cb = cb; |
1112 | } |
1869 | } |
1113 | |
1870 | |
1114 | static void noinline ecb_cold |
1871 | ecb_noinline ecb_cold |
|
|
1872 | static void |
1115 | ev_syserr (const char *msg) |
1873 | ev_syserr (const char *msg) |
1116 | { |
1874 | { |
1117 | if (!msg) |
1875 | if (!msg) |
1118 | msg = "(libev) system error"; |
1876 | msg = "(libev) system error"; |
1119 | |
1877 | |
… | |
… | |
1132 | abort (); |
1890 | abort (); |
1133 | } |
1891 | } |
1134 | } |
1892 | } |
1135 | |
1893 | |
1136 | static void * |
1894 | static void * |
1137 | ev_realloc_emul (void *ptr, long size) |
1895 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1138 | { |
1896 | { |
1139 | #if __GLIBC__ |
|
|
1140 | return realloc (ptr, size); |
|
|
1141 | #else |
|
|
1142 | /* some systems, notably openbsd and darwin, fail to properly |
1897 | /* some systems, notably openbsd and darwin, fail to properly |
1143 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1898 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1144 | * the single unix specification, so work around them here. |
1899 | * the single unix specification, so work around them here. |
|
|
1900 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1901 | * despite documenting it otherwise. |
1145 | */ |
1902 | */ |
1146 | |
1903 | |
1147 | if (size) |
1904 | if (size) |
1148 | return realloc (ptr, size); |
1905 | return realloc (ptr, size); |
1149 | |
1906 | |
1150 | free (ptr); |
1907 | free (ptr); |
1151 | return 0; |
1908 | return 0; |
1152 | #endif |
|
|
1153 | } |
1909 | } |
1154 | |
1910 | |
1155 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1911 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1156 | |
1912 | |
1157 | void ecb_cold |
1913 | ecb_cold |
|
|
1914 | void |
1158 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1915 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1159 | { |
1916 | { |
1160 | alloc = cb; |
1917 | alloc = cb; |
1161 | } |
1918 | } |
1162 | |
1919 | |
1163 | inline_speed void * |
1920 | inline_speed void * |
… | |
… | |
1190 | typedef struct |
1947 | typedef struct |
1191 | { |
1948 | { |
1192 | WL head; |
1949 | WL head; |
1193 | unsigned char events; /* the events watched for */ |
1950 | unsigned char events; /* the events watched for */ |
1194 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1951 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1195 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1952 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1196 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
1197 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
1198 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1199 | #endif |
1956 | #endif |
1200 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1201 | SOCKET handle; |
1958 | SOCKET handle; |
… | |
… | |
1255 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
1256 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
2013 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1257 | |
2014 | |
1258 | #else |
2015 | #else |
1259 | |
2016 | |
1260 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
2017 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1261 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
1262 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
1263 | #undef VAR |
2020 | #undef VAR |
1264 | |
2021 | |
1265 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
1266 | |
2023 | |
1267 | #endif |
2024 | #endif |
1268 | |
2025 | |
1269 | #if EV_FEATURE_API |
2026 | #if EV_FEATURE_API |
1270 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2027 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1271 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2028 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1272 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2029 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1273 | #else |
2030 | #else |
1274 | # define EV_RELEASE_CB (void)0 |
2031 | # define EV_RELEASE_CB (void)0 |
1275 | # define EV_ACQUIRE_CB (void)0 |
2032 | # define EV_ACQUIRE_CB (void)0 |
1276 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2033 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1280 | |
2037 | |
1281 | /*****************************************************************************/ |
2038 | /*****************************************************************************/ |
1282 | |
2039 | |
1283 | #ifndef EV_HAVE_EV_TIME |
2040 | #ifndef EV_HAVE_EV_TIME |
1284 | ev_tstamp |
2041 | ev_tstamp |
1285 | ev_time (void) |
2042 | ev_time (void) EV_NOEXCEPT |
1286 | { |
2043 | { |
1287 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
1288 | if (expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
1289 | { |
2046 | { |
1290 | struct timespec ts; |
2047 | struct timespec ts; |
1291 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
1292 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
1293 | } |
2050 | } |
1294 | #endif |
2051 | #endif |
1295 | |
2052 | |
|
|
2053 | { |
1296 | struct timeval tv; |
2054 | struct timeval tv; |
1297 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
1298 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
1299 | } |
2058 | } |
1300 | #endif |
2059 | #endif |
1301 | |
2060 | |
1302 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
1303 | get_clock (void) |
2062 | get_clock (void) |
1304 | { |
2063 | { |
1305 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
1306 | if (expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
1307 | { |
2066 | { |
1308 | struct timespec ts; |
2067 | struct timespec ts; |
1309 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1310 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
1311 | } |
2070 | } |
1312 | #endif |
2071 | #endif |
1313 | |
2072 | |
1314 | return ev_time (); |
2073 | return ev_time (); |
1315 | } |
2074 | } |
1316 | |
2075 | |
1317 | #if EV_MULTIPLICITY |
2076 | #if EV_MULTIPLICITY |
1318 | ev_tstamp |
2077 | ev_tstamp |
1319 | ev_now (EV_P) |
2078 | ev_now (EV_P) EV_NOEXCEPT |
1320 | { |
2079 | { |
1321 | return ev_rt_now; |
2080 | return ev_rt_now; |
1322 | } |
2081 | } |
1323 | #endif |
2082 | #endif |
1324 | |
2083 | |
1325 | void |
2084 | void |
1326 | ev_sleep (ev_tstamp delay) |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1327 | { |
2086 | { |
1328 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
1329 | { |
2088 | { |
1330 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
1331 | struct timespec ts; |
2090 | struct timespec ts; |
1332 | |
2091 | |
1333 | EV_TS_SET (ts, delay); |
2092 | EV_TS_SET (ts, delay); |
1334 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
1335 | #elif defined(_WIN32) |
2094 | #elif defined _WIN32 |
|
|
2095 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2096 | /* compared to select (µs) or nanosleep (ns) */ |
1336 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1337 | #else |
2098 | #else |
1338 | struct timeval tv; |
2099 | struct timeval tv; |
1339 | |
2100 | |
1340 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2101 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1341 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1371 | } |
2132 | } |
1372 | |
2133 | |
1373 | return ncur; |
2134 | return ncur; |
1374 | } |
2135 | } |
1375 | |
2136 | |
1376 | static void * noinline ecb_cold |
2137 | ecb_noinline ecb_cold |
|
|
2138 | static void * |
1377 | array_realloc (int elem, void *base, int *cur, int cnt) |
2139 | array_realloc (int elem, void *base, int *cur, int cnt) |
1378 | { |
2140 | { |
1379 | *cur = array_nextsize (elem, *cur, cnt); |
2141 | *cur = array_nextsize (elem, *cur, cnt); |
1380 | return ev_realloc (base, elem * *cur); |
2142 | return ev_realloc (base, elem * *cur); |
1381 | } |
2143 | } |
1382 | |
2144 | |
|
|
2145 | #define array_needsize_noinit(base,offset,count) |
|
|
2146 | |
1383 | #define array_init_zero(base,count) \ |
2147 | #define array_needsize_zerofill(base,offset,count) \ |
1384 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2148 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1385 | |
2149 | |
1386 | #define array_needsize(type,base,cur,cnt,init) \ |
2150 | #define array_needsize(type,base,cur,cnt,init) \ |
1387 | if (expect_false ((cnt) > (cur))) \ |
2151 | if (ecb_expect_false ((cnt) > (cur))) \ |
1388 | { \ |
2152 | { \ |
1389 | int ecb_unused ocur_ = (cur); \ |
2153 | ecb_unused int ocur_ = (cur); \ |
1390 | (base) = (type *)array_realloc \ |
2154 | (base) = (type *)array_realloc \ |
1391 | (sizeof (type), (base), &(cur), (cnt)); \ |
2155 | (sizeof (type), (base), &(cur), (cnt)); \ |
1392 | init ((base) + (ocur_), (cur) - ocur_); \ |
2156 | init ((base), ocur_, ((cur) - ocur_)); \ |
1393 | } |
2157 | } |
1394 | |
2158 | |
1395 | #if 0 |
2159 | #if 0 |
1396 | #define array_slim(type,stem) \ |
2160 | #define array_slim(type,stem) \ |
1397 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2161 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1406 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2170 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1407 | |
2171 | |
1408 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
1409 | |
2173 | |
1410 | /* dummy callback for pending events */ |
2174 | /* dummy callback for pending events */ |
1411 | static void noinline |
2175 | ecb_noinline |
|
|
2176 | static void |
1412 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2177 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1413 | { |
2178 | { |
1414 | } |
2179 | } |
1415 | |
2180 | |
1416 | void noinline |
2181 | ecb_noinline |
|
|
2182 | void |
1417 | ev_feed_event (EV_P_ void *w, int revents) |
2183 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1418 | { |
2184 | { |
1419 | W w_ = (W)w; |
2185 | W w_ = (W)w; |
1420 | int pri = ABSPRI (w_); |
2186 | int pri = ABSPRI (w_); |
1421 | |
2187 | |
1422 | if (expect_false (w_->pending)) |
2188 | if (ecb_expect_false (w_->pending)) |
1423 | pendings [pri][w_->pending - 1].events |= revents; |
2189 | pendings [pri][w_->pending - 1].events |= revents; |
1424 | else |
2190 | else |
1425 | { |
2191 | { |
1426 | w_->pending = ++pendingcnt [pri]; |
2192 | w_->pending = ++pendingcnt [pri]; |
1427 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2193 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1428 | pendings [pri][w_->pending - 1].w = w_; |
2194 | pendings [pri][w_->pending - 1].w = w_; |
1429 | pendings [pri][w_->pending - 1].events = revents; |
2195 | pendings [pri][w_->pending - 1].events = revents; |
1430 | } |
2196 | } |
|
|
2197 | |
|
|
2198 | pendingpri = NUMPRI - 1; |
1431 | } |
2199 | } |
1432 | |
2200 | |
1433 | inline_speed void |
2201 | inline_speed void |
1434 | feed_reverse (EV_P_ W w) |
2202 | feed_reverse (EV_P_ W w) |
1435 | { |
2203 | { |
1436 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2204 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1437 | rfeeds [rfeedcnt++] = w; |
2205 | rfeeds [rfeedcnt++] = w; |
1438 | } |
2206 | } |
1439 | |
2207 | |
1440 | inline_size void |
2208 | inline_size void |
1441 | feed_reverse_done (EV_P_ int revents) |
2209 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1476 | inline_speed void |
2244 | inline_speed void |
1477 | fd_event (EV_P_ int fd, int revents) |
2245 | fd_event (EV_P_ int fd, int revents) |
1478 | { |
2246 | { |
1479 | ANFD *anfd = anfds + fd; |
2247 | ANFD *anfd = anfds + fd; |
1480 | |
2248 | |
1481 | if (expect_true (!anfd->reify)) |
2249 | if (ecb_expect_true (!anfd->reify)) |
1482 | fd_event_nocheck (EV_A_ fd, revents); |
2250 | fd_event_nocheck (EV_A_ fd, revents); |
1483 | } |
2251 | } |
1484 | |
2252 | |
1485 | void |
2253 | void |
1486 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2254 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1487 | { |
2255 | { |
1488 | if (fd >= 0 && fd < anfdmax) |
2256 | if (fd >= 0 && fd < anfdmax) |
1489 | fd_event_nocheck (EV_A_ fd, revents); |
2257 | fd_event_nocheck (EV_A_ fd, revents); |
1490 | } |
2258 | } |
1491 | |
2259 | |
… | |
… | |
1494 | inline_size void |
2262 | inline_size void |
1495 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
1496 | { |
2264 | { |
1497 | int i; |
2265 | int i; |
1498 | |
2266 | |
|
|
2267 | /* most backends do not modify the fdchanges list in backend_modfiy. |
|
|
2268 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2269 | * to handle events in backend_modify, causing fdchangesd to be amended, |
|
|
2270 | * which could result in an endless loop. |
|
|
2271 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2272 | * during fd_reify. that menas thast for those backends, fdchangecnt |
|
|
2273 | * might be non-zero during poll, which must cause them to not block. |
|
|
2274 | * to not put too much of a burden on other backends, this detail |
|
|
2275 | * needs to be handled in the backend. |
|
|
2276 | */ |
|
|
2277 | int changecnt = fdchangecnt; |
|
|
2278 | |
1499 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2279 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1500 | for (i = 0; i < fdchangecnt; ++i) |
2280 | for (i = 0; i < changecnt; ++i) |
1501 | { |
2281 | { |
1502 | int fd = fdchanges [i]; |
2282 | int fd = fdchanges [i]; |
1503 | ANFD *anfd = anfds + fd; |
2283 | ANFD *anfd = anfds + fd; |
1504 | |
2284 | |
1505 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2285 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
1519 | } |
2299 | } |
1520 | } |
2300 | } |
1521 | } |
2301 | } |
1522 | #endif |
2302 | #endif |
1523 | |
2303 | |
1524 | for (i = 0; i < fdchangecnt; ++i) |
2304 | for (i = 0; i < changecnt; ++i) |
1525 | { |
2305 | { |
1526 | int fd = fdchanges [i]; |
2306 | int fd = fdchanges [i]; |
1527 | ANFD *anfd = anfds + fd; |
2307 | ANFD *anfd = anfds + fd; |
1528 | ev_io *w; |
2308 | ev_io *w; |
1529 | |
2309 | |
1530 | unsigned char o_events = anfd->events; |
2310 | unsigned char o_events = anfd->events; |
1531 | unsigned char o_reify = anfd->reify; |
2311 | unsigned char o_reify = anfd->reify; |
1532 | |
2312 | |
1533 | anfd->reify = 0; |
2313 | anfd->reify = 0; |
1534 | |
2314 | |
1535 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2315 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1536 | { |
2316 | { |
1537 | anfd->events = 0; |
2317 | anfd->events = 0; |
1538 | |
2318 | |
1539 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2319 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1540 | anfd->events |= (unsigned char)w->events; |
2320 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1545 | |
2325 | |
1546 | if (o_reify & EV__IOFDSET) |
2326 | if (o_reify & EV__IOFDSET) |
1547 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2327 | backend_modify (EV_A_ fd, o_events, anfd->events); |
1548 | } |
2328 | } |
1549 | |
2329 | |
|
|
2330 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2331 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2332 | * front and hope the backend handles this case. |
|
|
2333 | */ |
|
|
2334 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2335 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2336 | |
1550 | fdchangecnt = 0; |
2337 | fdchangecnt -= changecnt; |
1551 | } |
2338 | } |
1552 | |
2339 | |
1553 | /* something about the given fd changed */ |
2340 | /* something about the given fd changed */ |
1554 | inline_size void |
2341 | inline_size |
|
|
2342 | void |
1555 | fd_change (EV_P_ int fd, int flags) |
2343 | fd_change (EV_P_ int fd, int flags) |
1556 | { |
2344 | { |
1557 | unsigned char reify = anfds [fd].reify; |
2345 | unsigned char reify = anfds [fd].reify; |
1558 | anfds [fd].reify |= flags; |
2346 | anfds [fd].reify |= flags; |
1559 | |
2347 | |
1560 | if (expect_true (!reify)) |
2348 | if (ecb_expect_true (!reify)) |
1561 | { |
2349 | { |
1562 | ++fdchangecnt; |
2350 | ++fdchangecnt; |
1563 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2351 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1564 | fdchanges [fdchangecnt - 1] = fd; |
2352 | fdchanges [fdchangecnt - 1] = fd; |
1565 | } |
2353 | } |
1566 | } |
2354 | } |
1567 | |
2355 | |
1568 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2356 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1569 | inline_speed void ecb_cold |
2357 | inline_speed ecb_cold void |
1570 | fd_kill (EV_P_ int fd) |
2358 | fd_kill (EV_P_ int fd) |
1571 | { |
2359 | { |
1572 | ev_io *w; |
2360 | ev_io *w; |
1573 | |
2361 | |
1574 | while ((w = (ev_io *)anfds [fd].head)) |
2362 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1577 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2365 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1578 | } |
2366 | } |
1579 | } |
2367 | } |
1580 | |
2368 | |
1581 | /* check whether the given fd is actually valid, for error recovery */ |
2369 | /* check whether the given fd is actually valid, for error recovery */ |
1582 | inline_size int ecb_cold |
2370 | inline_size ecb_cold int |
1583 | fd_valid (int fd) |
2371 | fd_valid (int fd) |
1584 | { |
2372 | { |
1585 | #ifdef _WIN32 |
2373 | #ifdef _WIN32 |
1586 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2374 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1587 | #else |
2375 | #else |
1588 | return fcntl (fd, F_GETFD) != -1; |
2376 | return fcntl (fd, F_GETFD) != -1; |
1589 | #endif |
2377 | #endif |
1590 | } |
2378 | } |
1591 | |
2379 | |
1592 | /* called on EBADF to verify fds */ |
2380 | /* called on EBADF to verify fds */ |
1593 | static void noinline ecb_cold |
2381 | ecb_noinline ecb_cold |
|
|
2382 | static void |
1594 | fd_ebadf (EV_P) |
2383 | fd_ebadf (EV_P) |
1595 | { |
2384 | { |
1596 | int fd; |
2385 | int fd; |
1597 | |
2386 | |
1598 | for (fd = 0; fd < anfdmax; ++fd) |
2387 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1600 | if (!fd_valid (fd) && errno == EBADF) |
2389 | if (!fd_valid (fd) && errno == EBADF) |
1601 | fd_kill (EV_A_ fd); |
2390 | fd_kill (EV_A_ fd); |
1602 | } |
2391 | } |
1603 | |
2392 | |
1604 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2393 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1605 | static void noinline ecb_cold |
2394 | ecb_noinline ecb_cold |
|
|
2395 | static void |
1606 | fd_enomem (EV_P) |
2396 | fd_enomem (EV_P) |
1607 | { |
2397 | { |
1608 | int fd; |
2398 | int fd; |
1609 | |
2399 | |
1610 | for (fd = anfdmax; fd--; ) |
2400 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1614 | break; |
2404 | break; |
1615 | } |
2405 | } |
1616 | } |
2406 | } |
1617 | |
2407 | |
1618 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2408 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1619 | static void noinline |
2409 | ecb_noinline |
|
|
2410 | static void |
1620 | fd_rearm_all (EV_P) |
2411 | fd_rearm_all (EV_P) |
1621 | { |
2412 | { |
1622 | int fd; |
2413 | int fd; |
1623 | |
2414 | |
1624 | for (fd = 0; fd < anfdmax; ++fd) |
2415 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1677 | ev_tstamp minat; |
2468 | ev_tstamp minat; |
1678 | ANHE *minpos; |
2469 | ANHE *minpos; |
1679 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2470 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1680 | |
2471 | |
1681 | /* find minimum child */ |
2472 | /* find minimum child */ |
1682 | if (expect_true (pos + DHEAP - 1 < E)) |
2473 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1683 | { |
2474 | { |
1684 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2475 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1685 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2476 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1686 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2477 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1687 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2478 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1688 | } |
2479 | } |
1689 | else if (pos < E) |
2480 | else if (pos < E) |
1690 | { |
2481 | { |
1691 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2482 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1692 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2483 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1693 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2484 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1694 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2485 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1695 | } |
2486 | } |
1696 | else |
2487 | else |
1697 | break; |
2488 | break; |
1698 | |
2489 | |
1699 | if (ANHE_at (he) <= minat) |
2490 | if (ANHE_at (he) <= minat) |
… | |
… | |
1707 | |
2498 | |
1708 | heap [k] = he; |
2499 | heap [k] = he; |
1709 | ev_active (ANHE_w (he)) = k; |
2500 | ev_active (ANHE_w (he)) = k; |
1710 | } |
2501 | } |
1711 | |
2502 | |
1712 | #else /* 4HEAP */ |
2503 | #else /* not 4HEAP */ |
1713 | |
2504 | |
1714 | #define HEAP0 1 |
2505 | #define HEAP0 1 |
1715 | #define HPARENT(k) ((k) >> 1) |
2506 | #define HPARENT(k) ((k) >> 1) |
1716 | #define UPHEAP_DONE(p,k) (!(p)) |
2507 | #define UPHEAP_DONE(p,k) (!(p)) |
1717 | |
2508 | |
… | |
… | |
1805 | |
2596 | |
1806 | /*****************************************************************************/ |
2597 | /*****************************************************************************/ |
1807 | |
2598 | |
1808 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2599 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1809 | |
2600 | |
1810 | static void noinline ecb_cold |
2601 | ecb_noinline ecb_cold |
|
|
2602 | static void |
1811 | evpipe_init (EV_P) |
2603 | evpipe_init (EV_P) |
1812 | { |
2604 | { |
1813 | if (!ev_is_active (&pipe_w)) |
2605 | if (!ev_is_active (&pipe_w)) |
1814 | { |
2606 | { |
|
|
2607 | int fds [2]; |
|
|
2608 | |
1815 | # if EV_USE_EVENTFD |
2609 | # if EV_USE_EVENTFD |
|
|
2610 | fds [0] = -1; |
1816 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2611 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1817 | if (evfd < 0 && errno == EINVAL) |
2612 | if (fds [1] < 0 && errno == EINVAL) |
1818 | evfd = eventfd (0, 0); |
2613 | fds [1] = eventfd (0, 0); |
1819 | |
2614 | |
1820 | if (evfd >= 0) |
2615 | if (fds [1] < 0) |
|
|
2616 | # endif |
1821 | { |
2617 | { |
|
|
2618 | while (pipe (fds)) |
|
|
2619 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2620 | |
|
|
2621 | fd_intern (fds [0]); |
|
|
2622 | } |
|
|
2623 | |
1822 | evpipe [0] = -1; |
2624 | evpipe [0] = fds [0]; |
1823 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2625 | |
1824 | ev_io_set (&pipe_w, evfd, EV_READ); |
2626 | if (evpipe [1] < 0) |
|
|
2627 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2628 | else |
|
|
2629 | { |
|
|
2630 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2631 | /* so that evpipe_write can always rely on its value. */ |
|
|
2632 | /* this branch does not do anything sensible on windows, */ |
|
|
2633 | /* so must not be executed on windows */ |
|
|
2634 | |
|
|
2635 | dup2 (fds [1], evpipe [1]); |
|
|
2636 | close (fds [1]); |
|
|
2637 | } |
|
|
2638 | |
|
|
2639 | fd_intern (evpipe [1]); |
|
|
2640 | |
|
|
2641 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2642 | ev_io_start (EV_A_ &pipe_w); |
|
|
2643 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2644 | } |
|
|
2645 | } |
|
|
2646 | |
|
|
2647 | inline_speed void |
|
|
2648 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2649 | { |
|
|
2650 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2651 | |
|
|
2652 | if (ecb_expect_true (*flag)) |
|
|
2653 | return; |
|
|
2654 | |
|
|
2655 | *flag = 1; |
|
|
2656 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2657 | |
|
|
2658 | pipe_write_skipped = 1; |
|
|
2659 | |
|
|
2660 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2661 | |
|
|
2662 | if (pipe_write_wanted) |
|
|
2663 | { |
|
|
2664 | int old_errno; |
|
|
2665 | |
|
|
2666 | pipe_write_skipped = 0; |
|
|
2667 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2668 | |
|
|
2669 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2670 | |
|
|
2671 | #if EV_USE_EVENTFD |
|
|
2672 | if (evpipe [0] < 0) |
|
|
2673 | { |
|
|
2674 | uint64_t counter = 1; |
|
|
2675 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1825 | } |
2676 | } |
1826 | else |
2677 | else |
1827 | # endif |
2678 | #endif |
1828 | { |
2679 | { |
1829 | while (pipe (evpipe)) |
2680 | #ifdef _WIN32 |
1830 | ev_syserr ("(libev) error creating signal/async pipe"); |
2681 | WSABUF buf; |
1831 | |
2682 | DWORD sent; |
1832 | fd_intern (evpipe [0]); |
2683 | buf.buf = (char *)&buf; |
1833 | fd_intern (evpipe [1]); |
2684 | buf.len = 1; |
1834 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2685 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1835 | } |
2686 | #else |
1836 | |
|
|
1837 | ev_io_start (EV_A_ &pipe_w); |
|
|
1838 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1839 | } |
|
|
1840 | } |
|
|
1841 | |
|
|
1842 | inline_speed void |
|
|
1843 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1844 | { |
|
|
1845 | if (expect_true (*flag)) |
|
|
1846 | return; |
|
|
1847 | |
|
|
1848 | *flag = 1; |
|
|
1849 | |
|
|
1850 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1851 | |
|
|
1852 | pipe_write_skipped = 1; |
|
|
1853 | |
|
|
1854 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1855 | |
|
|
1856 | if (pipe_write_wanted) |
|
|
1857 | { |
|
|
1858 | int old_errno; |
|
|
1859 | |
|
|
1860 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1861 | |
|
|
1862 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1863 | |
|
|
1864 | #if EV_USE_EVENTFD |
|
|
1865 | if (evfd >= 0) |
|
|
1866 | { |
|
|
1867 | uint64_t counter = 1; |
|
|
1868 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1869 | } |
|
|
1870 | else |
|
|
1871 | #endif |
|
|
1872 | { |
|
|
1873 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1874 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1875 | /* so when you think this write should be a send instead, please find out */ |
|
|
1876 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1877 | /* tell me. thank you. */ |
|
|
1878 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1879 | /* check the ev documentation on how to use this flag */ |
|
|
1880 | write (evpipe [1], &(evpipe [1]), 1); |
2687 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2688 | #endif |
1881 | } |
2689 | } |
1882 | |
2690 | |
1883 | errno = old_errno; |
2691 | errno = old_errno; |
1884 | } |
2692 | } |
1885 | } |
2693 | } |
… | |
… | |
1892 | int i; |
2700 | int i; |
1893 | |
2701 | |
1894 | if (revents & EV_READ) |
2702 | if (revents & EV_READ) |
1895 | { |
2703 | { |
1896 | #if EV_USE_EVENTFD |
2704 | #if EV_USE_EVENTFD |
1897 | if (evfd >= 0) |
2705 | if (evpipe [0] < 0) |
1898 | { |
2706 | { |
1899 | uint64_t counter; |
2707 | uint64_t counter; |
1900 | read (evfd, &counter, sizeof (uint64_t)); |
2708 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1901 | } |
2709 | } |
1902 | else |
2710 | else |
1903 | #endif |
2711 | #endif |
1904 | { |
2712 | { |
1905 | char dummy; |
2713 | char dummy[4]; |
1906 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2714 | #ifdef _WIN32 |
|
|
2715 | WSABUF buf; |
|
|
2716 | DWORD recvd; |
|
|
2717 | DWORD flags = 0; |
|
|
2718 | buf.buf = dummy; |
|
|
2719 | buf.len = sizeof (dummy); |
|
|
2720 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2721 | #else |
1907 | read (evpipe [0], &dummy, 1); |
2722 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2723 | #endif |
1908 | } |
2724 | } |
1909 | } |
2725 | } |
1910 | |
2726 | |
1911 | pipe_write_skipped = 0; |
2727 | pipe_write_skipped = 0; |
|
|
2728 | |
|
|
2729 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1912 | |
2730 | |
1913 | #if EV_SIGNAL_ENABLE |
2731 | #if EV_SIGNAL_ENABLE |
1914 | if (sig_pending) |
2732 | if (sig_pending) |
1915 | { |
2733 | { |
1916 | sig_pending = 0; |
2734 | sig_pending = 0; |
1917 | |
2735 | |
|
|
2736 | ECB_MEMORY_FENCE; |
|
|
2737 | |
1918 | for (i = EV_NSIG - 1; i--; ) |
2738 | for (i = EV_NSIG - 1; i--; ) |
1919 | if (expect_false (signals [i].pending)) |
2739 | if (ecb_expect_false (signals [i].pending)) |
1920 | ev_feed_signal_event (EV_A_ i + 1); |
2740 | ev_feed_signal_event (EV_A_ i + 1); |
1921 | } |
2741 | } |
1922 | #endif |
2742 | #endif |
1923 | |
2743 | |
1924 | #if EV_ASYNC_ENABLE |
2744 | #if EV_ASYNC_ENABLE |
1925 | if (async_pending) |
2745 | if (async_pending) |
1926 | { |
2746 | { |
1927 | async_pending = 0; |
2747 | async_pending = 0; |
|
|
2748 | |
|
|
2749 | ECB_MEMORY_FENCE; |
1928 | |
2750 | |
1929 | for (i = asynccnt; i--; ) |
2751 | for (i = asynccnt; i--; ) |
1930 | if (asyncs [i]->sent) |
2752 | if (asyncs [i]->sent) |
1931 | { |
2753 | { |
1932 | asyncs [i]->sent = 0; |
2754 | asyncs [i]->sent = 0; |
|
|
2755 | ECB_MEMORY_FENCE_RELEASE; |
1933 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2756 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1934 | } |
2757 | } |
1935 | } |
2758 | } |
1936 | #endif |
2759 | #endif |
1937 | } |
2760 | } |
1938 | |
2761 | |
1939 | /*****************************************************************************/ |
2762 | /*****************************************************************************/ |
1940 | |
2763 | |
1941 | void |
2764 | void |
1942 | ev_feed_signal (int signum) |
2765 | ev_feed_signal (int signum) EV_NOEXCEPT |
1943 | { |
2766 | { |
1944 | #if EV_MULTIPLICITY |
2767 | #if EV_MULTIPLICITY |
|
|
2768 | EV_P; |
|
|
2769 | ECB_MEMORY_FENCE_ACQUIRE; |
1945 | EV_P = signals [signum - 1].loop; |
2770 | EV_A = signals [signum - 1].loop; |
1946 | |
2771 | |
1947 | if (!EV_A) |
2772 | if (!EV_A) |
1948 | return; |
2773 | return; |
1949 | #endif |
2774 | #endif |
1950 | |
2775 | |
1951 | if (!ev_active (&pipe_w)) |
|
|
1952 | return; |
|
|
1953 | |
|
|
1954 | signals [signum - 1].pending = 1; |
2776 | signals [signum - 1].pending = 1; |
1955 | evpipe_write (EV_A_ &sig_pending); |
2777 | evpipe_write (EV_A_ &sig_pending); |
1956 | } |
2778 | } |
1957 | |
2779 | |
1958 | static void |
2780 | static void |
… | |
… | |
1963 | #endif |
2785 | #endif |
1964 | |
2786 | |
1965 | ev_feed_signal (signum); |
2787 | ev_feed_signal (signum); |
1966 | } |
2788 | } |
1967 | |
2789 | |
1968 | void noinline |
2790 | ecb_noinline |
|
|
2791 | void |
1969 | ev_feed_signal_event (EV_P_ int signum) |
2792 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1970 | { |
2793 | { |
1971 | WL w; |
2794 | WL w; |
1972 | |
2795 | |
1973 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2796 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1974 | return; |
2797 | return; |
1975 | |
2798 | |
1976 | --signum; |
2799 | --signum; |
1977 | |
2800 | |
1978 | #if EV_MULTIPLICITY |
2801 | #if EV_MULTIPLICITY |
1979 | /* it is permissible to try to feed a signal to the wrong loop */ |
2802 | /* it is permissible to try to feed a signal to the wrong loop */ |
1980 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2803 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1981 | |
2804 | |
1982 | if (expect_false (signals [signum].loop != EV_A)) |
2805 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1983 | return; |
2806 | return; |
1984 | #endif |
2807 | #endif |
1985 | |
2808 | |
1986 | signals [signum].pending = 0; |
2809 | signals [signum].pending = 0; |
|
|
2810 | ECB_MEMORY_FENCE_RELEASE; |
1987 | |
2811 | |
1988 | for (w = signals [signum].head; w; w = w->next) |
2812 | for (w = signals [signum].head; w; w = w->next) |
1989 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2813 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1990 | } |
2814 | } |
1991 | |
2815 | |
… | |
… | |
2070 | |
2894 | |
2071 | #endif |
2895 | #endif |
2072 | |
2896 | |
2073 | /*****************************************************************************/ |
2897 | /*****************************************************************************/ |
2074 | |
2898 | |
|
|
2899 | #if EV_USE_TIMERFD |
|
|
2900 | |
|
|
2901 | static void periodics_reschedule (EV_P); |
|
|
2902 | |
|
|
2903 | static void |
|
|
2904 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2905 | { |
|
|
2906 | struct itimerspec its = { 0 }; |
|
|
2907 | |
|
|
2908 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2909 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2910 | * be a problem. */ |
|
|
2911 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2912 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2913 | |
|
|
2914 | ev_rt_now = ev_time (); |
|
|
2915 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2916 | /* but maybe in the future we want the full treatment. */ |
|
|
2917 | /* |
|
|
2918 | now_floor = EV_TS_CONST (0.); |
|
|
2919 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2920 | */ |
|
|
2921 | periodics_reschedule (EV_A); |
|
|
2922 | } |
|
|
2923 | |
|
|
2924 | ecb_noinline ecb_cold |
|
|
2925 | static void |
|
|
2926 | evtimerfd_init (EV_P) |
|
|
2927 | { |
|
|
2928 | if (!ev_is_active (&timerfd_w)) |
|
|
2929 | { |
|
|
2930 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2931 | |
|
|
2932 | if (timerfd >= 0) |
|
|
2933 | { |
|
|
2934 | fd_intern (timerfd); /* just to be sure */ |
|
|
2935 | |
|
|
2936 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2937 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2938 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2939 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2940 | |
|
|
2941 | /* (re-) arm timer */ |
|
|
2942 | timerfdcb (EV_A_ 0, 0); |
|
|
2943 | } |
|
|
2944 | } |
|
|
2945 | } |
|
|
2946 | |
|
|
2947 | #endif |
|
|
2948 | |
|
|
2949 | /*****************************************************************************/ |
|
|
2950 | |
2075 | #if EV_USE_IOCP |
2951 | #if EV_USE_IOCP |
2076 | # include "ev_iocp.c" |
2952 | # include "ev_iocp.c" |
2077 | #endif |
2953 | #endif |
2078 | #if EV_USE_PORT |
2954 | #if EV_USE_PORT |
2079 | # include "ev_port.c" |
2955 | # include "ev_port.c" |
… | |
… | |
2082 | # include "ev_kqueue.c" |
2958 | # include "ev_kqueue.c" |
2083 | #endif |
2959 | #endif |
2084 | #if EV_USE_EPOLL |
2960 | #if EV_USE_EPOLL |
2085 | # include "ev_epoll.c" |
2961 | # include "ev_epoll.c" |
2086 | #endif |
2962 | #endif |
|
|
2963 | #if EV_USE_LINUXAIO |
|
|
2964 | # include "ev_linuxaio.c" |
|
|
2965 | #endif |
|
|
2966 | #if EV_USE_IOURING |
|
|
2967 | # include "ev_iouring.c" |
|
|
2968 | #endif |
2087 | #if EV_USE_POLL |
2969 | #if EV_USE_POLL |
2088 | # include "ev_poll.c" |
2970 | # include "ev_poll.c" |
2089 | #endif |
2971 | #endif |
2090 | #if EV_USE_SELECT |
2972 | #if EV_USE_SELECT |
2091 | # include "ev_select.c" |
2973 | # include "ev_select.c" |
2092 | #endif |
2974 | #endif |
2093 | |
2975 | |
2094 | int ecb_cold |
2976 | ecb_cold int |
2095 | ev_version_major (void) |
2977 | ev_version_major (void) EV_NOEXCEPT |
2096 | { |
2978 | { |
2097 | return EV_VERSION_MAJOR; |
2979 | return EV_VERSION_MAJOR; |
2098 | } |
2980 | } |
2099 | |
2981 | |
2100 | int ecb_cold |
2982 | ecb_cold int |
2101 | ev_version_minor (void) |
2983 | ev_version_minor (void) EV_NOEXCEPT |
2102 | { |
2984 | { |
2103 | return EV_VERSION_MINOR; |
2985 | return EV_VERSION_MINOR; |
2104 | } |
2986 | } |
2105 | |
2987 | |
2106 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2988 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2107 | int inline_size ecb_cold |
2989 | inline_size ecb_cold int |
2108 | enable_secure (void) |
2990 | enable_secure (void) |
2109 | { |
2991 | { |
2110 | #ifdef _WIN32 |
2992 | #ifdef _WIN32 |
2111 | return 0; |
2993 | return 0; |
2112 | #else |
2994 | #else |
2113 | return getuid () != geteuid () |
2995 | return getuid () != geteuid () |
2114 | || getgid () != getegid (); |
2996 | || getgid () != getegid (); |
2115 | #endif |
2997 | #endif |
2116 | } |
2998 | } |
2117 | |
2999 | |
2118 | unsigned int ecb_cold |
3000 | ecb_cold |
|
|
3001 | unsigned int |
2119 | ev_supported_backends (void) |
3002 | ev_supported_backends (void) EV_NOEXCEPT |
2120 | { |
3003 | { |
2121 | unsigned int flags = 0; |
3004 | unsigned int flags = 0; |
2122 | |
3005 | |
2123 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3006 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2124 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3007 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2125 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3008 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2126 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3009 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
2127 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3010 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
2128 | |
3011 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3012 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3013 | |
2129 | return flags; |
3014 | return flags; |
2130 | } |
3015 | } |
2131 | |
3016 | |
2132 | unsigned int ecb_cold |
3017 | ecb_cold |
|
|
3018 | unsigned int |
2133 | ev_recommended_backends (void) |
3019 | ev_recommended_backends (void) EV_NOEXCEPT |
2134 | { |
3020 | { |
2135 | unsigned int flags = ev_supported_backends (); |
3021 | unsigned int flags = ev_supported_backends (); |
2136 | |
3022 | |
2137 | #ifndef __NetBSD__ |
3023 | #ifndef __NetBSD__ |
2138 | /* kqueue is borked on everything but netbsd apparently */ |
3024 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2146 | #endif |
3032 | #endif |
2147 | #ifdef __FreeBSD__ |
3033 | #ifdef __FreeBSD__ |
2148 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3034 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2149 | #endif |
3035 | #endif |
2150 | |
3036 | |
|
|
3037 | /* TODO: linuxaio is very experimental */ |
|
|
3038 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3039 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3040 | #endif |
|
|
3041 | /* TODO: linuxaio is super experimental */ |
|
|
3042 | #if !EV_RECOMMEND_IOURING |
|
|
3043 | flags &= ~EVBACKEND_IOURING; |
|
|
3044 | #endif |
|
|
3045 | |
2151 | return flags; |
3046 | return flags; |
2152 | } |
3047 | } |
2153 | |
3048 | |
2154 | unsigned int ecb_cold |
3049 | ecb_cold |
|
|
3050 | unsigned int |
2155 | ev_embeddable_backends (void) |
3051 | ev_embeddable_backends (void) EV_NOEXCEPT |
2156 | { |
3052 | { |
2157 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3053 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2158 | |
3054 | |
2159 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3055 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2160 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3056 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2161 | flags &= ~EVBACKEND_EPOLL; |
3057 | flags &= ~EVBACKEND_EPOLL; |
2162 | |
3058 | |
|
|
3059 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3060 | |
|
|
3061 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
3062 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
3063 | * if the kernel ever is fixed, this might change... |
|
|
3064 | */ |
|
|
3065 | |
2163 | return flags; |
3066 | return flags; |
2164 | } |
3067 | } |
2165 | |
3068 | |
2166 | unsigned int |
3069 | unsigned int |
2167 | ev_backend (EV_P) |
3070 | ev_backend (EV_P) EV_NOEXCEPT |
2168 | { |
3071 | { |
2169 | return backend; |
3072 | return backend; |
2170 | } |
3073 | } |
2171 | |
3074 | |
2172 | #if EV_FEATURE_API |
3075 | #if EV_FEATURE_API |
2173 | unsigned int |
3076 | unsigned int |
2174 | ev_iteration (EV_P) |
3077 | ev_iteration (EV_P) EV_NOEXCEPT |
2175 | { |
3078 | { |
2176 | return loop_count; |
3079 | return loop_count; |
2177 | } |
3080 | } |
2178 | |
3081 | |
2179 | unsigned int |
3082 | unsigned int |
2180 | ev_depth (EV_P) |
3083 | ev_depth (EV_P) EV_NOEXCEPT |
2181 | { |
3084 | { |
2182 | return loop_depth; |
3085 | return loop_depth; |
2183 | } |
3086 | } |
2184 | |
3087 | |
2185 | void |
3088 | void |
2186 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
3089 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2187 | { |
3090 | { |
2188 | io_blocktime = interval; |
3091 | io_blocktime = interval; |
2189 | } |
3092 | } |
2190 | |
3093 | |
2191 | void |
3094 | void |
2192 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
3095 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2193 | { |
3096 | { |
2194 | timeout_blocktime = interval; |
3097 | timeout_blocktime = interval; |
2195 | } |
3098 | } |
2196 | |
3099 | |
2197 | void |
3100 | void |
2198 | ev_set_userdata (EV_P_ void *data) |
3101 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2199 | { |
3102 | { |
2200 | userdata = data; |
3103 | userdata = data; |
2201 | } |
3104 | } |
2202 | |
3105 | |
2203 | void * |
3106 | void * |
2204 | ev_userdata (EV_P) |
3107 | ev_userdata (EV_P) EV_NOEXCEPT |
2205 | { |
3108 | { |
2206 | return userdata; |
3109 | return userdata; |
2207 | } |
3110 | } |
2208 | |
3111 | |
2209 | void |
3112 | void |
2210 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3113 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2211 | { |
3114 | { |
2212 | invoke_cb = invoke_pending_cb; |
3115 | invoke_cb = invoke_pending_cb; |
2213 | } |
3116 | } |
2214 | |
3117 | |
2215 | void |
3118 | void |
2216 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3119 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2217 | { |
3120 | { |
2218 | release_cb = release; |
3121 | release_cb = release; |
2219 | acquire_cb = acquire; |
3122 | acquire_cb = acquire; |
2220 | } |
3123 | } |
2221 | #endif |
3124 | #endif |
2222 | |
3125 | |
2223 | /* initialise a loop structure, must be zero-initialised */ |
3126 | /* initialise a loop structure, must be zero-initialised */ |
2224 | static void noinline ecb_cold |
3127 | ecb_noinline ecb_cold |
|
|
3128 | static void |
2225 | loop_init (EV_P_ unsigned int flags) |
3129 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2226 | { |
3130 | { |
2227 | if (!backend) |
3131 | if (!backend) |
2228 | { |
3132 | { |
2229 | origflags = flags; |
3133 | origflags = flags; |
2230 | |
3134 | |
… | |
… | |
2275 | #if EV_ASYNC_ENABLE |
3179 | #if EV_ASYNC_ENABLE |
2276 | async_pending = 0; |
3180 | async_pending = 0; |
2277 | #endif |
3181 | #endif |
2278 | pipe_write_skipped = 0; |
3182 | pipe_write_skipped = 0; |
2279 | pipe_write_wanted = 0; |
3183 | pipe_write_wanted = 0; |
|
|
3184 | evpipe [0] = -1; |
|
|
3185 | evpipe [1] = -1; |
2280 | #if EV_USE_INOTIFY |
3186 | #if EV_USE_INOTIFY |
2281 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3187 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2282 | #endif |
3188 | #endif |
2283 | #if EV_USE_SIGNALFD |
3189 | #if EV_USE_SIGNALFD |
2284 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3190 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2285 | #endif |
3191 | #endif |
|
|
3192 | #if EV_USE_TIMERFD |
|
|
3193 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3194 | #endif |
2286 | |
3195 | |
2287 | if (!(flags & EVBACKEND_MASK)) |
3196 | if (!(flags & EVBACKEND_MASK)) |
2288 | flags |= ev_recommended_backends (); |
3197 | flags |= ev_recommended_backends (); |
2289 | |
3198 | |
2290 | #if EV_USE_IOCP |
3199 | #if EV_USE_IOCP |
2291 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3200 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2292 | #endif |
3201 | #endif |
2293 | #if EV_USE_PORT |
3202 | #if EV_USE_PORT |
2294 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3203 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2295 | #endif |
3204 | #endif |
2296 | #if EV_USE_KQUEUE |
3205 | #if EV_USE_KQUEUE |
2297 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3206 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3207 | #endif |
|
|
3208 | #if EV_USE_IOURING |
|
|
3209 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3210 | #endif |
|
|
3211 | #if EV_USE_LINUXAIO |
|
|
3212 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2298 | #endif |
3213 | #endif |
2299 | #if EV_USE_EPOLL |
3214 | #if EV_USE_EPOLL |
2300 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3215 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2301 | #endif |
3216 | #endif |
2302 | #if EV_USE_POLL |
3217 | #if EV_USE_POLL |
2303 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3218 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2304 | #endif |
3219 | #endif |
2305 | #if EV_USE_SELECT |
3220 | #if EV_USE_SELECT |
2306 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3221 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2307 | #endif |
3222 | #endif |
2308 | |
3223 | |
2309 | ev_prepare_init (&pending_w, pendingcb); |
3224 | ev_prepare_init (&pending_w, pendingcb); |
2310 | |
3225 | |
2311 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3226 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2314 | #endif |
3229 | #endif |
2315 | } |
3230 | } |
2316 | } |
3231 | } |
2317 | |
3232 | |
2318 | /* free up a loop structure */ |
3233 | /* free up a loop structure */ |
2319 | void ecb_cold |
3234 | ecb_cold |
|
|
3235 | void |
2320 | ev_loop_destroy (EV_P) |
3236 | ev_loop_destroy (EV_P) |
2321 | { |
3237 | { |
2322 | int i; |
3238 | int i; |
2323 | |
3239 | |
2324 | #if EV_MULTIPLICITY |
3240 | #if EV_MULTIPLICITY |
… | |
… | |
2327 | return; |
3243 | return; |
2328 | #endif |
3244 | #endif |
2329 | |
3245 | |
2330 | #if EV_CLEANUP_ENABLE |
3246 | #if EV_CLEANUP_ENABLE |
2331 | /* queue cleanup watchers (and execute them) */ |
3247 | /* queue cleanup watchers (and execute them) */ |
2332 | if (expect_false (cleanupcnt)) |
3248 | if (ecb_expect_false (cleanupcnt)) |
2333 | { |
3249 | { |
2334 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3250 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2335 | EV_INVOKE_PENDING; |
3251 | EV_INVOKE_PENDING; |
2336 | } |
3252 | } |
2337 | #endif |
3253 | #endif |
2338 | |
3254 | |
2339 | #if EV_CHILD_ENABLE |
3255 | #if EV_CHILD_ENABLE |
2340 | if (ev_is_active (&childev)) |
3256 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2341 | { |
3257 | { |
2342 | ev_ref (EV_A); /* child watcher */ |
3258 | ev_ref (EV_A); /* child watcher */ |
2343 | ev_signal_stop (EV_A_ &childev); |
3259 | ev_signal_stop (EV_A_ &childev); |
2344 | } |
3260 | } |
2345 | #endif |
3261 | #endif |
… | |
… | |
2347 | if (ev_is_active (&pipe_w)) |
3263 | if (ev_is_active (&pipe_w)) |
2348 | { |
3264 | { |
2349 | /*ev_ref (EV_A);*/ |
3265 | /*ev_ref (EV_A);*/ |
2350 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3266 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2351 | |
3267 | |
2352 | #if EV_USE_EVENTFD |
|
|
2353 | if (evfd >= 0) |
|
|
2354 | close (evfd); |
|
|
2355 | #endif |
|
|
2356 | |
|
|
2357 | if (evpipe [0] >= 0) |
|
|
2358 | { |
|
|
2359 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3268 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2360 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3269 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2361 | } |
|
|
2362 | } |
3270 | } |
2363 | |
3271 | |
2364 | #if EV_USE_SIGNALFD |
3272 | #if EV_USE_SIGNALFD |
2365 | if (ev_is_active (&sigfd_w)) |
3273 | if (ev_is_active (&sigfd_w)) |
2366 | close (sigfd); |
3274 | close (sigfd); |
2367 | #endif |
3275 | #endif |
2368 | |
3276 | |
|
|
3277 | #if EV_USE_TIMERFD |
|
|
3278 | if (ev_is_active (&timerfd_w)) |
|
|
3279 | close (timerfd); |
|
|
3280 | #endif |
|
|
3281 | |
2369 | #if EV_USE_INOTIFY |
3282 | #if EV_USE_INOTIFY |
2370 | if (fs_fd >= 0) |
3283 | if (fs_fd >= 0) |
2371 | close (fs_fd); |
3284 | close (fs_fd); |
2372 | #endif |
3285 | #endif |
2373 | |
3286 | |
2374 | if (backend_fd >= 0) |
3287 | if (backend_fd >= 0) |
2375 | close (backend_fd); |
3288 | close (backend_fd); |
2376 | |
3289 | |
2377 | #if EV_USE_IOCP |
3290 | #if EV_USE_IOCP |
2378 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3291 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2379 | #endif |
3292 | #endif |
2380 | #if EV_USE_PORT |
3293 | #if EV_USE_PORT |
2381 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3294 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2382 | #endif |
3295 | #endif |
2383 | #if EV_USE_KQUEUE |
3296 | #if EV_USE_KQUEUE |
2384 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3297 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3298 | #endif |
|
|
3299 | #if EV_USE_IOURING |
|
|
3300 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3301 | #endif |
|
|
3302 | #if EV_USE_LINUXAIO |
|
|
3303 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2385 | #endif |
3304 | #endif |
2386 | #if EV_USE_EPOLL |
3305 | #if EV_USE_EPOLL |
2387 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3306 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2388 | #endif |
3307 | #endif |
2389 | #if EV_USE_POLL |
3308 | #if EV_USE_POLL |
2390 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3309 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2391 | #endif |
3310 | #endif |
2392 | #if EV_USE_SELECT |
3311 | #if EV_USE_SELECT |
2393 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3312 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2394 | #endif |
3313 | #endif |
2395 | |
3314 | |
2396 | for (i = NUMPRI; i--; ) |
3315 | for (i = NUMPRI; i--; ) |
2397 | { |
3316 | { |
2398 | array_free (pending, [i]); |
3317 | array_free (pending, [i]); |
… | |
… | |
2440 | |
3359 | |
2441 | inline_size void |
3360 | inline_size void |
2442 | loop_fork (EV_P) |
3361 | loop_fork (EV_P) |
2443 | { |
3362 | { |
2444 | #if EV_USE_PORT |
3363 | #if EV_USE_PORT |
2445 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3364 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2446 | #endif |
3365 | #endif |
2447 | #if EV_USE_KQUEUE |
3366 | #if EV_USE_KQUEUE |
2448 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3367 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3368 | #endif |
|
|
3369 | #if EV_USE_IOURING |
|
|
3370 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3371 | #endif |
|
|
3372 | #if EV_USE_LINUXAIO |
|
|
3373 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2449 | #endif |
3374 | #endif |
2450 | #if EV_USE_EPOLL |
3375 | #if EV_USE_EPOLL |
2451 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3376 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2452 | #endif |
3377 | #endif |
2453 | #if EV_USE_INOTIFY |
3378 | #if EV_USE_INOTIFY |
2454 | infy_fork (EV_A); |
3379 | infy_fork (EV_A); |
2455 | #endif |
3380 | #endif |
2456 | |
3381 | |
|
|
3382 | if (postfork != 2) |
|
|
3383 | { |
|
|
3384 | #if EV_USE_SIGNALFD |
|
|
3385 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3386 | #endif |
|
|
3387 | |
|
|
3388 | #if EV_USE_TIMERFD |
|
|
3389 | if (ev_is_active (&timerfd_w)) |
|
|
3390 | { |
|
|
3391 | ev_ref (EV_A); |
|
|
3392 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3393 | |
|
|
3394 | close (timerfd); |
|
|
3395 | timerfd = -2; |
|
|
3396 | |
|
|
3397 | evtimerfd_init (EV_A); |
|
|
3398 | /* reschedule periodics, in case we missed something */ |
|
|
3399 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3400 | } |
|
|
3401 | #endif |
|
|
3402 | |
|
|
3403 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2457 | if (ev_is_active (&pipe_w)) |
3404 | if (ev_is_active (&pipe_w)) |
2458 | { |
3405 | { |
2459 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3406 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2460 | |
3407 | |
2461 | ev_ref (EV_A); |
3408 | ev_ref (EV_A); |
2462 | ev_io_stop (EV_A_ &pipe_w); |
3409 | ev_io_stop (EV_A_ &pipe_w); |
2463 | |
3410 | |
2464 | #if EV_USE_EVENTFD |
|
|
2465 | if (evfd >= 0) |
|
|
2466 | close (evfd); |
|
|
2467 | #endif |
|
|
2468 | |
|
|
2469 | if (evpipe [0] >= 0) |
3411 | if (evpipe [0] >= 0) |
2470 | { |
|
|
2471 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3412 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2472 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3413 | |
|
|
3414 | evpipe_init (EV_A); |
|
|
3415 | /* iterate over everything, in case we missed something before */ |
|
|
3416 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2473 | } |
3417 | } |
2474 | |
3418 | #endif |
2475 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2476 | evpipe_init (EV_A); |
|
|
2477 | /* now iterate over everything, in case we missed something */ |
|
|
2478 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2479 | #endif |
|
|
2480 | } |
3419 | } |
2481 | |
3420 | |
2482 | postfork = 0; |
3421 | postfork = 0; |
2483 | } |
3422 | } |
2484 | |
3423 | |
2485 | #if EV_MULTIPLICITY |
3424 | #if EV_MULTIPLICITY |
2486 | |
3425 | |
|
|
3426 | ecb_cold |
2487 | struct ev_loop * ecb_cold |
3427 | struct ev_loop * |
2488 | ev_loop_new (unsigned int flags) |
3428 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2489 | { |
3429 | { |
2490 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3430 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2491 | |
3431 | |
2492 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3432 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2493 | loop_init (EV_A_ flags); |
3433 | loop_init (EV_A_ flags); |
… | |
… | |
2500 | } |
3440 | } |
2501 | |
3441 | |
2502 | #endif /* multiplicity */ |
3442 | #endif /* multiplicity */ |
2503 | |
3443 | |
2504 | #if EV_VERIFY |
3444 | #if EV_VERIFY |
2505 | static void noinline ecb_cold |
3445 | ecb_noinline ecb_cold |
|
|
3446 | static void |
2506 | verify_watcher (EV_P_ W w) |
3447 | verify_watcher (EV_P_ W w) |
2507 | { |
3448 | { |
2508 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3449 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2509 | |
3450 | |
2510 | if (w->pending) |
3451 | if (w->pending) |
2511 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3452 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2512 | } |
3453 | } |
2513 | |
3454 | |
2514 | static void noinline ecb_cold |
3455 | ecb_noinline ecb_cold |
|
|
3456 | static void |
2515 | verify_heap (EV_P_ ANHE *heap, int N) |
3457 | verify_heap (EV_P_ ANHE *heap, int N) |
2516 | { |
3458 | { |
2517 | int i; |
3459 | int i; |
2518 | |
3460 | |
2519 | for (i = HEAP0; i < N + HEAP0; ++i) |
3461 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2524 | |
3466 | |
2525 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3467 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2526 | } |
3468 | } |
2527 | } |
3469 | } |
2528 | |
3470 | |
2529 | static void noinline ecb_cold |
3471 | ecb_noinline ecb_cold |
|
|
3472 | static void |
2530 | array_verify (EV_P_ W *ws, int cnt) |
3473 | array_verify (EV_P_ W *ws, int cnt) |
2531 | { |
3474 | { |
2532 | while (cnt--) |
3475 | while (cnt--) |
2533 | { |
3476 | { |
2534 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3477 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2537 | } |
3480 | } |
2538 | #endif |
3481 | #endif |
2539 | |
3482 | |
2540 | #if EV_FEATURE_API |
3483 | #if EV_FEATURE_API |
2541 | void ecb_cold |
3484 | void ecb_cold |
2542 | ev_verify (EV_P) |
3485 | ev_verify (EV_P) EV_NOEXCEPT |
2543 | { |
3486 | { |
2544 | #if EV_VERIFY |
3487 | #if EV_VERIFY |
2545 | int i; |
3488 | int i; |
2546 | WL w; |
3489 | WL w, w2; |
2547 | |
3490 | |
2548 | assert (activecnt >= -1); |
3491 | assert (activecnt >= -1); |
2549 | |
3492 | |
2550 | assert (fdchangemax >= fdchangecnt); |
3493 | assert (fdchangemax >= fdchangecnt); |
2551 | for (i = 0; i < fdchangecnt; ++i) |
3494 | for (i = 0; i < fdchangecnt; ++i) |
2552 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3495 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2553 | |
3496 | |
2554 | assert (anfdmax >= 0); |
3497 | assert (anfdmax >= 0); |
2555 | for (i = 0; i < anfdmax; ++i) |
3498 | for (i = 0; i < anfdmax; ++i) |
|
|
3499 | { |
|
|
3500 | int j = 0; |
|
|
3501 | |
2556 | for (w = anfds [i].head; w; w = w->next) |
3502 | for (w = w2 = anfds [i].head; w; w = w->next) |
2557 | { |
3503 | { |
2558 | verify_watcher (EV_A_ (W)w); |
3504 | verify_watcher (EV_A_ (W)w); |
|
|
3505 | |
|
|
3506 | if (j++ & 1) |
|
|
3507 | { |
|
|
3508 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3509 | w2 = w2->next; |
|
|
3510 | } |
|
|
3511 | |
2559 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3512 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2560 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3513 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2561 | } |
3514 | } |
|
|
3515 | } |
2562 | |
3516 | |
2563 | assert (timermax >= timercnt); |
3517 | assert (timermax >= timercnt); |
2564 | verify_heap (EV_A_ timers, timercnt); |
3518 | verify_heap (EV_A_ timers, timercnt); |
2565 | |
3519 | |
2566 | #if EV_PERIODIC_ENABLE |
3520 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2612 | #endif |
3566 | #endif |
2613 | } |
3567 | } |
2614 | #endif |
3568 | #endif |
2615 | |
3569 | |
2616 | #if EV_MULTIPLICITY |
3570 | #if EV_MULTIPLICITY |
|
|
3571 | ecb_cold |
2617 | struct ev_loop * ecb_cold |
3572 | struct ev_loop * |
2618 | #else |
3573 | #else |
2619 | int |
3574 | int |
2620 | #endif |
3575 | #endif |
2621 | ev_default_loop (unsigned int flags) |
3576 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2622 | { |
3577 | { |
2623 | if (!ev_default_loop_ptr) |
3578 | if (!ev_default_loop_ptr) |
2624 | { |
3579 | { |
2625 | #if EV_MULTIPLICITY |
3580 | #if EV_MULTIPLICITY |
2626 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3581 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2645 | |
3600 | |
2646 | return ev_default_loop_ptr; |
3601 | return ev_default_loop_ptr; |
2647 | } |
3602 | } |
2648 | |
3603 | |
2649 | void |
3604 | void |
2650 | ev_loop_fork (EV_P) |
3605 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2651 | { |
3606 | { |
2652 | postfork = 1; /* must be in line with ev_default_fork */ |
3607 | postfork = 1; |
2653 | } |
3608 | } |
2654 | |
3609 | |
2655 | /*****************************************************************************/ |
3610 | /*****************************************************************************/ |
2656 | |
3611 | |
2657 | void |
3612 | void |
… | |
… | |
2659 | { |
3614 | { |
2660 | EV_CB_INVOKE ((W)w, revents); |
3615 | EV_CB_INVOKE ((W)w, revents); |
2661 | } |
3616 | } |
2662 | |
3617 | |
2663 | unsigned int |
3618 | unsigned int |
2664 | ev_pending_count (EV_P) |
3619 | ev_pending_count (EV_P) EV_NOEXCEPT |
2665 | { |
3620 | { |
2666 | int pri; |
3621 | int pri; |
2667 | unsigned int count = 0; |
3622 | unsigned int count = 0; |
2668 | |
3623 | |
2669 | for (pri = NUMPRI; pri--; ) |
3624 | for (pri = NUMPRI; pri--; ) |
2670 | count += pendingcnt [pri]; |
3625 | count += pendingcnt [pri]; |
2671 | |
3626 | |
2672 | return count; |
3627 | return count; |
2673 | } |
3628 | } |
2674 | |
3629 | |
2675 | void noinline |
3630 | ecb_noinline |
|
|
3631 | void |
2676 | ev_invoke_pending (EV_P) |
3632 | ev_invoke_pending (EV_P) |
2677 | { |
3633 | { |
2678 | int pri; |
3634 | pendingpri = NUMPRI; |
2679 | |
3635 | |
2680 | for (pri = NUMPRI; pri--; ) |
3636 | do |
|
|
3637 | { |
|
|
3638 | --pendingpri; |
|
|
3639 | |
|
|
3640 | /* pendingpri possibly gets modified in the inner loop */ |
2681 | while (pendingcnt [pri]) |
3641 | while (pendingcnt [pendingpri]) |
2682 | { |
3642 | { |
2683 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3643 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2684 | |
3644 | |
2685 | p->w->pending = 0; |
3645 | p->w->pending = 0; |
2686 | EV_CB_INVOKE (p->w, p->events); |
3646 | EV_CB_INVOKE (p->w, p->events); |
2687 | EV_FREQUENT_CHECK; |
3647 | EV_FREQUENT_CHECK; |
2688 | } |
3648 | } |
|
|
3649 | } |
|
|
3650 | while (pendingpri); |
2689 | } |
3651 | } |
2690 | |
3652 | |
2691 | #if EV_IDLE_ENABLE |
3653 | #if EV_IDLE_ENABLE |
2692 | /* make idle watchers pending. this handles the "call-idle */ |
3654 | /* make idle watchers pending. this handles the "call-idle */ |
2693 | /* only when higher priorities are idle" logic */ |
3655 | /* only when higher priorities are idle" logic */ |
2694 | inline_size void |
3656 | inline_size void |
2695 | idle_reify (EV_P) |
3657 | idle_reify (EV_P) |
2696 | { |
3658 | { |
2697 | if (expect_false (idleall)) |
3659 | if (ecb_expect_false (idleall)) |
2698 | { |
3660 | { |
2699 | int pri; |
3661 | int pri; |
2700 | |
3662 | |
2701 | for (pri = NUMPRI; pri--; ) |
3663 | for (pri = NUMPRI; pri--; ) |
2702 | { |
3664 | { |
… | |
… | |
2732 | { |
3694 | { |
2733 | ev_at (w) += w->repeat; |
3695 | ev_at (w) += w->repeat; |
2734 | if (ev_at (w) < mn_now) |
3696 | if (ev_at (w) < mn_now) |
2735 | ev_at (w) = mn_now; |
3697 | ev_at (w) = mn_now; |
2736 | |
3698 | |
2737 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3699 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2738 | |
3700 | |
2739 | ANHE_at_cache (timers [HEAP0]); |
3701 | ANHE_at_cache (timers [HEAP0]); |
2740 | downheap (timers, timercnt, HEAP0); |
3702 | downheap (timers, timercnt, HEAP0); |
2741 | } |
3703 | } |
2742 | else |
3704 | else |
… | |
… | |
2751 | } |
3713 | } |
2752 | } |
3714 | } |
2753 | |
3715 | |
2754 | #if EV_PERIODIC_ENABLE |
3716 | #if EV_PERIODIC_ENABLE |
2755 | |
3717 | |
2756 | static void noinline |
3718 | ecb_noinline |
|
|
3719 | static void |
2757 | periodic_recalc (EV_P_ ev_periodic *w) |
3720 | periodic_recalc (EV_P_ ev_periodic *w) |
2758 | { |
3721 | { |
2759 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3722 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2760 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3723 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2761 | |
3724 | |
… | |
… | |
2763 | while (at <= ev_rt_now) |
3726 | while (at <= ev_rt_now) |
2764 | { |
3727 | { |
2765 | ev_tstamp nat = at + w->interval; |
3728 | ev_tstamp nat = at + w->interval; |
2766 | |
3729 | |
2767 | /* when resolution fails us, we use ev_rt_now */ |
3730 | /* when resolution fails us, we use ev_rt_now */ |
2768 | if (expect_false (nat == at)) |
3731 | if (ecb_expect_false (nat == at)) |
2769 | { |
3732 | { |
2770 | at = ev_rt_now; |
3733 | at = ev_rt_now; |
2771 | break; |
3734 | break; |
2772 | } |
3735 | } |
2773 | |
3736 | |
… | |
… | |
2783 | { |
3746 | { |
2784 | EV_FREQUENT_CHECK; |
3747 | EV_FREQUENT_CHECK; |
2785 | |
3748 | |
2786 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3749 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2787 | { |
3750 | { |
2788 | int feed_count = 0; |
|
|
2789 | |
|
|
2790 | do |
3751 | do |
2791 | { |
3752 | { |
2792 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3753 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2793 | |
3754 | |
2794 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3755 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2821 | } |
3782 | } |
2822 | } |
3783 | } |
2823 | |
3784 | |
2824 | /* simply recalculate all periodics */ |
3785 | /* simply recalculate all periodics */ |
2825 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3786 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2826 | static void noinline ecb_cold |
3787 | ecb_noinline ecb_cold |
|
|
3788 | static void |
2827 | periodics_reschedule (EV_P) |
3789 | periodics_reschedule (EV_P) |
2828 | { |
3790 | { |
2829 | int i; |
3791 | int i; |
2830 | |
3792 | |
2831 | /* adjust periodics after time jump */ |
3793 | /* adjust periodics after time jump */ |
… | |
… | |
2844 | reheap (periodics, periodiccnt); |
3806 | reheap (periodics, periodiccnt); |
2845 | } |
3807 | } |
2846 | #endif |
3808 | #endif |
2847 | |
3809 | |
2848 | /* adjust all timers by a given offset */ |
3810 | /* adjust all timers by a given offset */ |
2849 | static void noinline ecb_cold |
3811 | ecb_noinline ecb_cold |
|
|
3812 | static void |
2850 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3813 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2851 | { |
3814 | { |
2852 | int i; |
3815 | int i; |
2853 | |
3816 | |
2854 | for (i = 0; i < timercnt; ++i) |
3817 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2863 | /* also detect if there was a timejump, and act accordingly */ |
3826 | /* also detect if there was a timejump, and act accordingly */ |
2864 | inline_speed void |
3827 | inline_speed void |
2865 | time_update (EV_P_ ev_tstamp max_block) |
3828 | time_update (EV_P_ ev_tstamp max_block) |
2866 | { |
3829 | { |
2867 | #if EV_USE_MONOTONIC |
3830 | #if EV_USE_MONOTONIC |
2868 | if (expect_true (have_monotonic)) |
3831 | if (ecb_expect_true (have_monotonic)) |
2869 | { |
3832 | { |
2870 | int i; |
3833 | int i; |
2871 | ev_tstamp odiff = rtmn_diff; |
3834 | ev_tstamp odiff = rtmn_diff; |
2872 | |
3835 | |
2873 | mn_now = get_clock (); |
3836 | mn_now = get_clock (); |
2874 | |
3837 | |
2875 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3838 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2876 | /* interpolate in the meantime */ |
3839 | /* interpolate in the meantime */ |
2877 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3840 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2878 | { |
3841 | { |
2879 | ev_rt_now = rtmn_diff + mn_now; |
3842 | ev_rt_now = rtmn_diff + mn_now; |
2880 | return; |
3843 | return; |
2881 | } |
3844 | } |
2882 | |
3845 | |
… | |
… | |
2896 | ev_tstamp diff; |
3859 | ev_tstamp diff; |
2897 | rtmn_diff = ev_rt_now - mn_now; |
3860 | rtmn_diff = ev_rt_now - mn_now; |
2898 | |
3861 | |
2899 | diff = odiff - rtmn_diff; |
3862 | diff = odiff - rtmn_diff; |
2900 | |
3863 | |
2901 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3864 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2902 | return; /* all is well */ |
3865 | return; /* all is well */ |
2903 | |
3866 | |
2904 | ev_rt_now = ev_time (); |
3867 | ev_rt_now = ev_time (); |
2905 | mn_now = get_clock (); |
3868 | mn_now = get_clock (); |
2906 | now_floor = mn_now; |
3869 | now_floor = mn_now; |
… | |
… | |
2915 | else |
3878 | else |
2916 | #endif |
3879 | #endif |
2917 | { |
3880 | { |
2918 | ev_rt_now = ev_time (); |
3881 | ev_rt_now = ev_time (); |
2919 | |
3882 | |
2920 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3883 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2921 | { |
3884 | { |
2922 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3885 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2923 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3886 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2924 | #if EV_PERIODIC_ENABLE |
3887 | #if EV_PERIODIC_ENABLE |
2925 | periodics_reschedule (EV_A); |
3888 | periodics_reschedule (EV_A); |
… | |
… | |
2928 | |
3891 | |
2929 | mn_now = ev_rt_now; |
3892 | mn_now = ev_rt_now; |
2930 | } |
3893 | } |
2931 | } |
3894 | } |
2932 | |
3895 | |
2933 | void |
3896 | int |
2934 | ev_run (EV_P_ int flags) |
3897 | ev_run (EV_P_ int flags) |
2935 | { |
3898 | { |
2936 | #if EV_FEATURE_API |
3899 | #if EV_FEATURE_API |
2937 | ++loop_depth; |
3900 | ++loop_depth; |
2938 | #endif |
3901 | #endif |
… | |
… | |
2948 | #if EV_VERIFY >= 2 |
3911 | #if EV_VERIFY >= 2 |
2949 | ev_verify (EV_A); |
3912 | ev_verify (EV_A); |
2950 | #endif |
3913 | #endif |
2951 | |
3914 | |
2952 | #ifndef _WIN32 |
3915 | #ifndef _WIN32 |
2953 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3916 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2954 | if (expect_false (getpid () != curpid)) |
3917 | if (ecb_expect_false (getpid () != curpid)) |
2955 | { |
3918 | { |
2956 | curpid = getpid (); |
3919 | curpid = getpid (); |
2957 | postfork = 1; |
3920 | postfork = 1; |
2958 | } |
3921 | } |
2959 | #endif |
3922 | #endif |
2960 | |
3923 | |
2961 | #if EV_FORK_ENABLE |
3924 | #if EV_FORK_ENABLE |
2962 | /* we might have forked, so queue fork handlers */ |
3925 | /* we might have forked, so queue fork handlers */ |
2963 | if (expect_false (postfork)) |
3926 | if (ecb_expect_false (postfork)) |
2964 | if (forkcnt) |
3927 | if (forkcnt) |
2965 | { |
3928 | { |
2966 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3929 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2967 | EV_INVOKE_PENDING; |
3930 | EV_INVOKE_PENDING; |
2968 | } |
3931 | } |
2969 | #endif |
3932 | #endif |
2970 | |
3933 | |
2971 | #if EV_PREPARE_ENABLE |
3934 | #if EV_PREPARE_ENABLE |
2972 | /* queue prepare watchers (and execute them) */ |
3935 | /* queue prepare watchers (and execute them) */ |
2973 | if (expect_false (preparecnt)) |
3936 | if (ecb_expect_false (preparecnt)) |
2974 | { |
3937 | { |
2975 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3938 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2976 | EV_INVOKE_PENDING; |
3939 | EV_INVOKE_PENDING; |
2977 | } |
3940 | } |
2978 | #endif |
3941 | #endif |
2979 | |
3942 | |
2980 | if (expect_false (loop_done)) |
3943 | if (ecb_expect_false (loop_done)) |
2981 | break; |
3944 | break; |
2982 | |
3945 | |
2983 | /* we might have forked, so reify kernel state if necessary */ |
3946 | /* we might have forked, so reify kernel state if necessary */ |
2984 | if (expect_false (postfork)) |
3947 | if (ecb_expect_false (postfork)) |
2985 | loop_fork (EV_A); |
3948 | loop_fork (EV_A); |
2986 | |
3949 | |
2987 | /* update fd-related kernel structures */ |
3950 | /* update fd-related kernel structures */ |
2988 | fd_reify (EV_A); |
3951 | fd_reify (EV_A); |
2989 | |
3952 | |
… | |
… | |
2994 | |
3957 | |
2995 | /* remember old timestamp for io_blocktime calculation */ |
3958 | /* remember old timestamp for io_blocktime calculation */ |
2996 | ev_tstamp prev_mn_now = mn_now; |
3959 | ev_tstamp prev_mn_now = mn_now; |
2997 | |
3960 | |
2998 | /* update time to cancel out callback processing overhead */ |
3961 | /* update time to cancel out callback processing overhead */ |
2999 | time_update (EV_A_ 1e100); |
3962 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3000 | |
3963 | |
3001 | /* from now on, we want a pipe-wake-up */ |
3964 | /* from now on, we want a pipe-wake-up */ |
3002 | pipe_write_wanted = 1; |
3965 | pipe_write_wanted = 1; |
3003 | |
3966 | |
3004 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3967 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3005 | |
3968 | |
3006 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3969 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3007 | { |
3970 | { |
3008 | waittime = MAX_BLOCKTIME; |
3971 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
3009 | |
3972 | |
3010 | if (timercnt) |
3973 | if (timercnt) |
3011 | { |
3974 | { |
3012 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3975 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3013 | if (waittime > to) waittime = to; |
3976 | if (waittime > to) waittime = to; |
… | |
… | |
3020 | if (waittime > to) waittime = to; |
3983 | if (waittime > to) waittime = to; |
3021 | } |
3984 | } |
3022 | #endif |
3985 | #endif |
3023 | |
3986 | |
3024 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3987 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3025 | if (expect_false (waittime < timeout_blocktime)) |
3988 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3026 | waittime = timeout_blocktime; |
3989 | waittime = timeout_blocktime; |
3027 | |
3990 | |
3028 | /* at this point, we NEED to wait, so we have to ensure */ |
3991 | /* now there are two more special cases left, either we have |
3029 | /* to pass a minimum nonzero value to the backend */ |
3992 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3993 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3994 | * amount of time for some event loop backends. |
|
|
3995 | */ |
3030 | if (expect_false (waittime < backend_mintime)) |
3996 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3997 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3998 | ? EV_TS_CONST (0.) |
3031 | waittime = backend_mintime; |
3999 | : backend_mintime; |
3032 | |
4000 | |
3033 | /* extra check because io_blocktime is commonly 0 */ |
4001 | /* extra check because io_blocktime is commonly 0 */ |
3034 | if (expect_false (io_blocktime)) |
4002 | if (ecb_expect_false (io_blocktime)) |
3035 | { |
4003 | { |
3036 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
4004 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3037 | |
4005 | |
3038 | if (sleeptime > waittime - backend_mintime) |
4006 | if (sleeptime > waittime - backend_mintime) |
3039 | sleeptime = waittime - backend_mintime; |
4007 | sleeptime = waittime - backend_mintime; |
3040 | |
4008 | |
3041 | if (expect_true (sleeptime > 0.)) |
4009 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3042 | { |
4010 | { |
3043 | ev_sleep (sleeptime); |
4011 | ev_sleep (sleeptime); |
3044 | waittime -= sleeptime; |
4012 | waittime -= sleeptime; |
3045 | } |
4013 | } |
3046 | } |
4014 | } |
… | |
… | |
3053 | backend_poll (EV_A_ waittime); |
4021 | backend_poll (EV_A_ waittime); |
3054 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
4022 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3055 | |
4023 | |
3056 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
4024 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3057 | |
4025 | |
|
|
4026 | ECB_MEMORY_FENCE_ACQUIRE; |
3058 | if (pipe_write_skipped) |
4027 | if (pipe_write_skipped) |
3059 | { |
4028 | { |
3060 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
4029 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3061 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
4030 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3062 | } |
4031 | } |
3063 | |
4032 | |
3064 | |
|
|
3065 | /* update ev_rt_now, do magic */ |
4033 | /* update ev_rt_now, do magic */ |
3066 | time_update (EV_A_ waittime + sleeptime); |
4034 | time_update (EV_A_ waittime + sleeptime); |
3067 | } |
4035 | } |
3068 | |
4036 | |
3069 | /* queue pending timers and reschedule them */ |
4037 | /* queue pending timers and reschedule them */ |
… | |
… | |
3077 | idle_reify (EV_A); |
4045 | idle_reify (EV_A); |
3078 | #endif |
4046 | #endif |
3079 | |
4047 | |
3080 | #if EV_CHECK_ENABLE |
4048 | #if EV_CHECK_ENABLE |
3081 | /* queue check watchers, to be executed first */ |
4049 | /* queue check watchers, to be executed first */ |
3082 | if (expect_false (checkcnt)) |
4050 | if (ecb_expect_false (checkcnt)) |
3083 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4051 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3084 | #endif |
4052 | #endif |
3085 | |
4053 | |
3086 | EV_INVOKE_PENDING; |
4054 | EV_INVOKE_PENDING; |
3087 | } |
4055 | } |
3088 | while (expect_true ( |
4056 | while (ecb_expect_true ( |
3089 | activecnt |
4057 | activecnt |
3090 | && !loop_done |
4058 | && !loop_done |
3091 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4059 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3092 | )); |
4060 | )); |
3093 | |
4061 | |
… | |
… | |
3095 | loop_done = EVBREAK_CANCEL; |
4063 | loop_done = EVBREAK_CANCEL; |
3096 | |
4064 | |
3097 | #if EV_FEATURE_API |
4065 | #if EV_FEATURE_API |
3098 | --loop_depth; |
4066 | --loop_depth; |
3099 | #endif |
4067 | #endif |
3100 | } |
|
|
3101 | |
4068 | |
|
|
4069 | return activecnt; |
|
|
4070 | } |
|
|
4071 | |
3102 | void |
4072 | void |
3103 | ev_break (EV_P_ int how) |
4073 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3104 | { |
4074 | { |
3105 | loop_done = how; |
4075 | loop_done = how; |
3106 | } |
4076 | } |
3107 | |
4077 | |
3108 | void |
4078 | void |
3109 | ev_ref (EV_P) |
4079 | ev_ref (EV_P) EV_NOEXCEPT |
3110 | { |
4080 | { |
3111 | ++activecnt; |
4081 | ++activecnt; |
3112 | } |
4082 | } |
3113 | |
4083 | |
3114 | void |
4084 | void |
3115 | ev_unref (EV_P) |
4085 | ev_unref (EV_P) EV_NOEXCEPT |
3116 | { |
4086 | { |
3117 | --activecnt; |
4087 | --activecnt; |
3118 | } |
4088 | } |
3119 | |
4089 | |
3120 | void |
4090 | void |
3121 | ev_now_update (EV_P) |
4091 | ev_now_update (EV_P) EV_NOEXCEPT |
3122 | { |
4092 | { |
3123 | time_update (EV_A_ 1e100); |
4093 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3124 | } |
4094 | } |
3125 | |
4095 | |
3126 | void |
4096 | void |
3127 | ev_suspend (EV_P) |
4097 | ev_suspend (EV_P) EV_NOEXCEPT |
3128 | { |
4098 | { |
3129 | ev_now_update (EV_A); |
4099 | ev_now_update (EV_A); |
3130 | } |
4100 | } |
3131 | |
4101 | |
3132 | void |
4102 | void |
3133 | ev_resume (EV_P) |
4103 | ev_resume (EV_P) EV_NOEXCEPT |
3134 | { |
4104 | { |
3135 | ev_tstamp mn_prev = mn_now; |
4105 | ev_tstamp mn_prev = mn_now; |
3136 | |
4106 | |
3137 | ev_now_update (EV_A); |
4107 | ev_now_update (EV_A); |
3138 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4108 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3155 | inline_size void |
4125 | inline_size void |
3156 | wlist_del (WL *head, WL elem) |
4126 | wlist_del (WL *head, WL elem) |
3157 | { |
4127 | { |
3158 | while (*head) |
4128 | while (*head) |
3159 | { |
4129 | { |
3160 | if (expect_true (*head == elem)) |
4130 | if (ecb_expect_true (*head == elem)) |
3161 | { |
4131 | { |
3162 | *head = elem->next; |
4132 | *head = elem->next; |
3163 | break; |
4133 | break; |
3164 | } |
4134 | } |
3165 | |
4135 | |
… | |
… | |
3177 | w->pending = 0; |
4147 | w->pending = 0; |
3178 | } |
4148 | } |
3179 | } |
4149 | } |
3180 | |
4150 | |
3181 | int |
4151 | int |
3182 | ev_clear_pending (EV_P_ void *w) |
4152 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3183 | { |
4153 | { |
3184 | W w_ = (W)w; |
4154 | W w_ = (W)w; |
3185 | int pending = w_->pending; |
4155 | int pending = w_->pending; |
3186 | |
4156 | |
3187 | if (expect_true (pending)) |
4157 | if (ecb_expect_true (pending)) |
3188 | { |
4158 | { |
3189 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4159 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3190 | p->w = (W)&pending_w; |
4160 | p->w = (W)&pending_w; |
3191 | w_->pending = 0; |
4161 | w_->pending = 0; |
3192 | return p->events; |
4162 | return p->events; |
… | |
… | |
3219 | w->active = 0; |
4189 | w->active = 0; |
3220 | } |
4190 | } |
3221 | |
4191 | |
3222 | /*****************************************************************************/ |
4192 | /*****************************************************************************/ |
3223 | |
4193 | |
3224 | void noinline |
4194 | ecb_noinline |
|
|
4195 | void |
3225 | ev_io_start (EV_P_ ev_io *w) |
4196 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3226 | { |
4197 | { |
3227 | int fd = w->fd; |
4198 | int fd = w->fd; |
3228 | |
4199 | |
3229 | if (expect_false (ev_is_active (w))) |
4200 | if (ecb_expect_false (ev_is_active (w))) |
3230 | return; |
4201 | return; |
3231 | |
4202 | |
3232 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4203 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3233 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4204 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3234 | |
4205 | |
|
|
4206 | #if EV_VERIFY >= 2 |
|
|
4207 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4208 | #endif |
3235 | EV_FREQUENT_CHECK; |
4209 | EV_FREQUENT_CHECK; |
3236 | |
4210 | |
3237 | ev_start (EV_A_ (W)w, 1); |
4211 | ev_start (EV_A_ (W)w, 1); |
3238 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4212 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3239 | wlist_add (&anfds[fd].head, (WL)w); |
4213 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4214 | |
|
|
4215 | /* common bug, apparently */ |
|
|
4216 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3240 | |
4217 | |
3241 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4218 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3242 | w->events &= ~EV__IOFDSET; |
4219 | w->events &= ~EV__IOFDSET; |
3243 | |
4220 | |
3244 | EV_FREQUENT_CHECK; |
4221 | EV_FREQUENT_CHECK; |
3245 | } |
4222 | } |
3246 | |
4223 | |
3247 | void noinline |
4224 | ecb_noinline |
|
|
4225 | void |
3248 | ev_io_stop (EV_P_ ev_io *w) |
4226 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3249 | { |
4227 | { |
3250 | clear_pending (EV_A_ (W)w); |
4228 | clear_pending (EV_A_ (W)w); |
3251 | if (expect_false (!ev_is_active (w))) |
4229 | if (ecb_expect_false (!ev_is_active (w))) |
3252 | return; |
4230 | return; |
3253 | |
4231 | |
3254 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4232 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3255 | |
4233 | |
|
|
4234 | #if EV_VERIFY >= 2 |
|
|
4235 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4236 | #endif |
3256 | EV_FREQUENT_CHECK; |
4237 | EV_FREQUENT_CHECK; |
3257 | |
4238 | |
3258 | wlist_del (&anfds[w->fd].head, (WL)w); |
4239 | wlist_del (&anfds[w->fd].head, (WL)w); |
3259 | ev_stop (EV_A_ (W)w); |
4240 | ev_stop (EV_A_ (W)w); |
3260 | |
4241 | |
3261 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4242 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3262 | |
4243 | |
3263 | EV_FREQUENT_CHECK; |
4244 | EV_FREQUENT_CHECK; |
3264 | } |
4245 | } |
3265 | |
4246 | |
3266 | void noinline |
4247 | ecb_noinline |
|
|
4248 | void |
3267 | ev_timer_start (EV_P_ ev_timer *w) |
4249 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3268 | { |
4250 | { |
3269 | if (expect_false (ev_is_active (w))) |
4251 | if (ecb_expect_false (ev_is_active (w))) |
3270 | return; |
4252 | return; |
3271 | |
4253 | |
3272 | ev_at (w) += mn_now; |
4254 | ev_at (w) += mn_now; |
3273 | |
4255 | |
3274 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4256 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3275 | |
4257 | |
3276 | EV_FREQUENT_CHECK; |
4258 | EV_FREQUENT_CHECK; |
3277 | |
4259 | |
3278 | ++timercnt; |
4260 | ++timercnt; |
3279 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4261 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3280 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4262 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3281 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4263 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3282 | ANHE_at_cache (timers [ev_active (w)]); |
4264 | ANHE_at_cache (timers [ev_active (w)]); |
3283 | upheap (timers, ev_active (w)); |
4265 | upheap (timers, ev_active (w)); |
3284 | |
4266 | |
3285 | EV_FREQUENT_CHECK; |
4267 | EV_FREQUENT_CHECK; |
3286 | |
4268 | |
3287 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4269 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3288 | } |
4270 | } |
3289 | |
4271 | |
3290 | void noinline |
4272 | ecb_noinline |
|
|
4273 | void |
3291 | ev_timer_stop (EV_P_ ev_timer *w) |
4274 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3292 | { |
4275 | { |
3293 | clear_pending (EV_A_ (W)w); |
4276 | clear_pending (EV_A_ (W)w); |
3294 | if (expect_false (!ev_is_active (w))) |
4277 | if (ecb_expect_false (!ev_is_active (w))) |
3295 | return; |
4278 | return; |
3296 | |
4279 | |
3297 | EV_FREQUENT_CHECK; |
4280 | EV_FREQUENT_CHECK; |
3298 | |
4281 | |
3299 | { |
4282 | { |
… | |
… | |
3301 | |
4284 | |
3302 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4285 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3303 | |
4286 | |
3304 | --timercnt; |
4287 | --timercnt; |
3305 | |
4288 | |
3306 | if (expect_true (active < timercnt + HEAP0)) |
4289 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3307 | { |
4290 | { |
3308 | timers [active] = timers [timercnt + HEAP0]; |
4291 | timers [active] = timers [timercnt + HEAP0]; |
3309 | adjustheap (timers, timercnt, active); |
4292 | adjustheap (timers, timercnt, active); |
3310 | } |
4293 | } |
3311 | } |
4294 | } |
… | |
… | |
3315 | ev_stop (EV_A_ (W)w); |
4298 | ev_stop (EV_A_ (W)w); |
3316 | |
4299 | |
3317 | EV_FREQUENT_CHECK; |
4300 | EV_FREQUENT_CHECK; |
3318 | } |
4301 | } |
3319 | |
4302 | |
3320 | void noinline |
4303 | ecb_noinline |
|
|
4304 | void |
3321 | ev_timer_again (EV_P_ ev_timer *w) |
4305 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3322 | { |
4306 | { |
3323 | EV_FREQUENT_CHECK; |
4307 | EV_FREQUENT_CHECK; |
3324 | |
4308 | |
3325 | clear_pending (EV_A_ (W)w); |
4309 | clear_pending (EV_A_ (W)w); |
3326 | |
4310 | |
… | |
… | |
3343 | |
4327 | |
3344 | EV_FREQUENT_CHECK; |
4328 | EV_FREQUENT_CHECK; |
3345 | } |
4329 | } |
3346 | |
4330 | |
3347 | ev_tstamp |
4331 | ev_tstamp |
3348 | ev_timer_remaining (EV_P_ ev_timer *w) |
4332 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3349 | { |
4333 | { |
3350 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4334 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
3351 | } |
4335 | } |
3352 | |
4336 | |
3353 | #if EV_PERIODIC_ENABLE |
4337 | #if EV_PERIODIC_ENABLE |
3354 | void noinline |
4338 | ecb_noinline |
|
|
4339 | void |
3355 | ev_periodic_start (EV_P_ ev_periodic *w) |
4340 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3356 | { |
4341 | { |
3357 | if (expect_false (ev_is_active (w))) |
4342 | if (ecb_expect_false (ev_is_active (w))) |
3358 | return; |
4343 | return; |
|
|
4344 | |
|
|
4345 | #if EV_USE_TIMERFD |
|
|
4346 | if (timerfd == -2) |
|
|
4347 | evtimerfd_init (EV_A); |
|
|
4348 | #endif |
3359 | |
4349 | |
3360 | if (w->reschedule_cb) |
4350 | if (w->reschedule_cb) |
3361 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4351 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3362 | else if (w->interval) |
4352 | else if (w->interval) |
3363 | { |
4353 | { |
… | |
… | |
3369 | |
4359 | |
3370 | EV_FREQUENT_CHECK; |
4360 | EV_FREQUENT_CHECK; |
3371 | |
4361 | |
3372 | ++periodiccnt; |
4362 | ++periodiccnt; |
3373 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4363 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3374 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4364 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3375 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4365 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3376 | ANHE_at_cache (periodics [ev_active (w)]); |
4366 | ANHE_at_cache (periodics [ev_active (w)]); |
3377 | upheap (periodics, ev_active (w)); |
4367 | upheap (periodics, ev_active (w)); |
3378 | |
4368 | |
3379 | EV_FREQUENT_CHECK; |
4369 | EV_FREQUENT_CHECK; |
3380 | |
4370 | |
3381 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4371 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3382 | } |
4372 | } |
3383 | |
4373 | |
3384 | void noinline |
4374 | ecb_noinline |
|
|
4375 | void |
3385 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4376 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3386 | { |
4377 | { |
3387 | clear_pending (EV_A_ (W)w); |
4378 | clear_pending (EV_A_ (W)w); |
3388 | if (expect_false (!ev_is_active (w))) |
4379 | if (ecb_expect_false (!ev_is_active (w))) |
3389 | return; |
4380 | return; |
3390 | |
4381 | |
3391 | EV_FREQUENT_CHECK; |
4382 | EV_FREQUENT_CHECK; |
3392 | |
4383 | |
3393 | { |
4384 | { |
… | |
… | |
3395 | |
4386 | |
3396 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4387 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3397 | |
4388 | |
3398 | --periodiccnt; |
4389 | --periodiccnt; |
3399 | |
4390 | |
3400 | if (expect_true (active < periodiccnt + HEAP0)) |
4391 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3401 | { |
4392 | { |
3402 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4393 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3403 | adjustheap (periodics, periodiccnt, active); |
4394 | adjustheap (periodics, periodiccnt, active); |
3404 | } |
4395 | } |
3405 | } |
4396 | } |
… | |
… | |
3407 | ev_stop (EV_A_ (W)w); |
4398 | ev_stop (EV_A_ (W)w); |
3408 | |
4399 | |
3409 | EV_FREQUENT_CHECK; |
4400 | EV_FREQUENT_CHECK; |
3410 | } |
4401 | } |
3411 | |
4402 | |
3412 | void noinline |
4403 | ecb_noinline |
|
|
4404 | void |
3413 | ev_periodic_again (EV_P_ ev_periodic *w) |
4405 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3414 | { |
4406 | { |
3415 | /* TODO: use adjustheap and recalculation */ |
4407 | /* TODO: use adjustheap and recalculation */ |
3416 | ev_periodic_stop (EV_A_ w); |
4408 | ev_periodic_stop (EV_A_ w); |
3417 | ev_periodic_start (EV_A_ w); |
4409 | ev_periodic_start (EV_A_ w); |
3418 | } |
4410 | } |
… | |
… | |
3422 | # define SA_RESTART 0 |
4414 | # define SA_RESTART 0 |
3423 | #endif |
4415 | #endif |
3424 | |
4416 | |
3425 | #if EV_SIGNAL_ENABLE |
4417 | #if EV_SIGNAL_ENABLE |
3426 | |
4418 | |
3427 | void noinline |
4419 | ecb_noinline |
|
|
4420 | void |
3428 | ev_signal_start (EV_P_ ev_signal *w) |
4421 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3429 | { |
4422 | { |
3430 | if (expect_false (ev_is_active (w))) |
4423 | if (ecb_expect_false (ev_is_active (w))) |
3431 | return; |
4424 | return; |
3432 | |
4425 | |
3433 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4426 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3434 | |
4427 | |
3435 | #if EV_MULTIPLICITY |
4428 | #if EV_MULTIPLICITY |
3436 | assert (("libev: a signal must not be attached to two different loops", |
4429 | assert (("libev: a signal must not be attached to two different loops", |
3437 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4430 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3438 | |
4431 | |
3439 | signals [w->signum - 1].loop = EV_A; |
4432 | signals [w->signum - 1].loop = EV_A; |
|
|
4433 | ECB_MEMORY_FENCE_RELEASE; |
3440 | #endif |
4434 | #endif |
3441 | |
4435 | |
3442 | EV_FREQUENT_CHECK; |
4436 | EV_FREQUENT_CHECK; |
3443 | |
4437 | |
3444 | #if EV_USE_SIGNALFD |
4438 | #if EV_USE_SIGNALFD |
… | |
… | |
3503 | } |
4497 | } |
3504 | |
4498 | |
3505 | EV_FREQUENT_CHECK; |
4499 | EV_FREQUENT_CHECK; |
3506 | } |
4500 | } |
3507 | |
4501 | |
3508 | void noinline |
4502 | ecb_noinline |
|
|
4503 | void |
3509 | ev_signal_stop (EV_P_ ev_signal *w) |
4504 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3510 | { |
4505 | { |
3511 | clear_pending (EV_A_ (W)w); |
4506 | clear_pending (EV_A_ (W)w); |
3512 | if (expect_false (!ev_is_active (w))) |
4507 | if (ecb_expect_false (!ev_is_active (w))) |
3513 | return; |
4508 | return; |
3514 | |
4509 | |
3515 | EV_FREQUENT_CHECK; |
4510 | EV_FREQUENT_CHECK; |
3516 | |
4511 | |
3517 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4512 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3545 | #endif |
4540 | #endif |
3546 | |
4541 | |
3547 | #if EV_CHILD_ENABLE |
4542 | #if EV_CHILD_ENABLE |
3548 | |
4543 | |
3549 | void |
4544 | void |
3550 | ev_child_start (EV_P_ ev_child *w) |
4545 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3551 | { |
4546 | { |
3552 | #if EV_MULTIPLICITY |
4547 | #if EV_MULTIPLICITY |
3553 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4548 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3554 | #endif |
4549 | #endif |
3555 | if (expect_false (ev_is_active (w))) |
4550 | if (ecb_expect_false (ev_is_active (w))) |
3556 | return; |
4551 | return; |
3557 | |
4552 | |
3558 | EV_FREQUENT_CHECK; |
4553 | EV_FREQUENT_CHECK; |
3559 | |
4554 | |
3560 | ev_start (EV_A_ (W)w, 1); |
4555 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3562 | |
4557 | |
3563 | EV_FREQUENT_CHECK; |
4558 | EV_FREQUENT_CHECK; |
3564 | } |
4559 | } |
3565 | |
4560 | |
3566 | void |
4561 | void |
3567 | ev_child_stop (EV_P_ ev_child *w) |
4562 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3568 | { |
4563 | { |
3569 | clear_pending (EV_A_ (W)w); |
4564 | clear_pending (EV_A_ (W)w); |
3570 | if (expect_false (!ev_is_active (w))) |
4565 | if (ecb_expect_false (!ev_is_active (w))) |
3571 | return; |
4566 | return; |
3572 | |
4567 | |
3573 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
3574 | |
4569 | |
3575 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4570 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3589 | |
4584 | |
3590 | #define DEF_STAT_INTERVAL 5.0074891 |
4585 | #define DEF_STAT_INTERVAL 5.0074891 |
3591 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4586 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3592 | #define MIN_STAT_INTERVAL 0.1074891 |
4587 | #define MIN_STAT_INTERVAL 0.1074891 |
3593 | |
4588 | |
3594 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4589 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3595 | |
4590 | |
3596 | #if EV_USE_INOTIFY |
4591 | #if EV_USE_INOTIFY |
3597 | |
4592 | |
3598 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4593 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3599 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4594 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3600 | |
4595 | |
3601 | static void noinline |
4596 | ecb_noinline |
|
|
4597 | static void |
3602 | infy_add (EV_P_ ev_stat *w) |
4598 | infy_add (EV_P_ ev_stat *w) |
3603 | { |
4599 | { |
3604 | 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); |
4600 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4601 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4602 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4603 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3605 | |
4604 | |
3606 | if (w->wd >= 0) |
4605 | if (w->wd >= 0) |
3607 | { |
4606 | { |
3608 | struct statfs sfs; |
4607 | struct statfs sfs; |
3609 | |
4608 | |
… | |
… | |
3613 | |
4612 | |
3614 | if (!fs_2625) |
4613 | if (!fs_2625) |
3615 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4614 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3616 | else if (!statfs (w->path, &sfs) |
4615 | else if (!statfs (w->path, &sfs) |
3617 | && (sfs.f_type == 0x1373 /* devfs */ |
4616 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4617 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4618 | || sfs.f_type == 0x4d44 /* msdos */ |
3618 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4619 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4620 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4621 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4622 | || sfs.f_type == 0x5346544e /* ntfs */ |
3619 | || sfs.f_type == 0x3153464a /* jfs */ |
4623 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4624 | || sfs.f_type == 0x9123683e /* btrfs */ |
3620 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4625 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3621 | || sfs.f_type == 0x01021994 /* tempfs */ |
4626 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3622 | || sfs.f_type == 0x58465342 /* xfs */)) |
4627 | || sfs.f_type == 0x58465342 /* xfs */)) |
3623 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4628 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3624 | else |
4629 | else |
3625 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4630 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3626 | } |
4631 | } |
… | |
… | |
3661 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4666 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3662 | ev_timer_again (EV_A_ &w->timer); |
4667 | ev_timer_again (EV_A_ &w->timer); |
3663 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4668 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3664 | } |
4669 | } |
3665 | |
4670 | |
3666 | static void noinline |
4671 | ecb_noinline |
|
|
4672 | static void |
3667 | infy_del (EV_P_ ev_stat *w) |
4673 | infy_del (EV_P_ ev_stat *w) |
3668 | { |
4674 | { |
3669 | int slot; |
4675 | int slot; |
3670 | int wd = w->wd; |
4676 | int wd = w->wd; |
3671 | |
4677 | |
… | |
… | |
3678 | |
4684 | |
3679 | /* remove this watcher, if others are watching it, they will rearm */ |
4685 | /* remove this watcher, if others are watching it, they will rearm */ |
3680 | inotify_rm_watch (fs_fd, wd); |
4686 | inotify_rm_watch (fs_fd, wd); |
3681 | } |
4687 | } |
3682 | |
4688 | |
3683 | static void noinline |
4689 | ecb_noinline |
|
|
4690 | static void |
3684 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4691 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3685 | { |
4692 | { |
3686 | if (slot < 0) |
4693 | if (slot < 0) |
3687 | /* overflow, need to check for all hash slots */ |
4694 | /* overflow, need to check for all hash slots */ |
3688 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4695 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3724 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4731 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3725 | ofs += sizeof (struct inotify_event) + ev->len; |
4732 | ofs += sizeof (struct inotify_event) + ev->len; |
3726 | } |
4733 | } |
3727 | } |
4734 | } |
3728 | |
4735 | |
3729 | inline_size void ecb_cold |
4736 | inline_size ecb_cold |
|
|
4737 | void |
3730 | ev_check_2625 (EV_P) |
4738 | ev_check_2625 (EV_P) |
3731 | { |
4739 | { |
3732 | /* kernels < 2.6.25 are borked |
4740 | /* kernels < 2.6.25 are borked |
3733 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4741 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3734 | */ |
4742 | */ |
… | |
… | |
3739 | } |
4747 | } |
3740 | |
4748 | |
3741 | inline_size int |
4749 | inline_size int |
3742 | infy_newfd (void) |
4750 | infy_newfd (void) |
3743 | { |
4751 | { |
3744 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4752 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3745 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4753 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3746 | if (fd >= 0) |
4754 | if (fd >= 0) |
3747 | return fd; |
4755 | return fd; |
3748 | #endif |
4756 | #endif |
3749 | return inotify_init (); |
4757 | return inotify_init (); |
… | |
… | |
3824 | #else |
4832 | #else |
3825 | # define EV_LSTAT(p,b) lstat (p, b) |
4833 | # define EV_LSTAT(p,b) lstat (p, b) |
3826 | #endif |
4834 | #endif |
3827 | |
4835 | |
3828 | void |
4836 | void |
3829 | ev_stat_stat (EV_P_ ev_stat *w) |
4837 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3830 | { |
4838 | { |
3831 | if (lstat (w->path, &w->attr) < 0) |
4839 | if (lstat (w->path, &w->attr) < 0) |
3832 | w->attr.st_nlink = 0; |
4840 | w->attr.st_nlink = 0; |
3833 | else if (!w->attr.st_nlink) |
4841 | else if (!w->attr.st_nlink) |
3834 | w->attr.st_nlink = 1; |
4842 | w->attr.st_nlink = 1; |
3835 | } |
4843 | } |
3836 | |
4844 | |
3837 | static void noinline |
4845 | ecb_noinline |
|
|
4846 | static void |
3838 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4847 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3839 | { |
4848 | { |
3840 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4849 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3841 | |
4850 | |
3842 | ev_statdata prev = w->attr; |
4851 | ev_statdata prev = w->attr; |
… | |
… | |
3873 | ev_feed_event (EV_A_ w, EV_STAT); |
4882 | ev_feed_event (EV_A_ w, EV_STAT); |
3874 | } |
4883 | } |
3875 | } |
4884 | } |
3876 | |
4885 | |
3877 | void |
4886 | void |
3878 | ev_stat_start (EV_P_ ev_stat *w) |
4887 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3879 | { |
4888 | { |
3880 | if (expect_false (ev_is_active (w))) |
4889 | if (ecb_expect_false (ev_is_active (w))) |
3881 | return; |
4890 | return; |
3882 | |
4891 | |
3883 | ev_stat_stat (EV_A_ w); |
4892 | ev_stat_stat (EV_A_ w); |
3884 | |
4893 | |
3885 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4894 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3904 | |
4913 | |
3905 | EV_FREQUENT_CHECK; |
4914 | EV_FREQUENT_CHECK; |
3906 | } |
4915 | } |
3907 | |
4916 | |
3908 | void |
4917 | void |
3909 | ev_stat_stop (EV_P_ ev_stat *w) |
4918 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3910 | { |
4919 | { |
3911 | clear_pending (EV_A_ (W)w); |
4920 | clear_pending (EV_A_ (W)w); |
3912 | if (expect_false (!ev_is_active (w))) |
4921 | if (ecb_expect_false (!ev_is_active (w))) |
3913 | return; |
4922 | return; |
3914 | |
4923 | |
3915 | EV_FREQUENT_CHECK; |
4924 | EV_FREQUENT_CHECK; |
3916 | |
4925 | |
3917 | #if EV_USE_INOTIFY |
4926 | #if EV_USE_INOTIFY |
… | |
… | |
3930 | } |
4939 | } |
3931 | #endif |
4940 | #endif |
3932 | |
4941 | |
3933 | #if EV_IDLE_ENABLE |
4942 | #if EV_IDLE_ENABLE |
3934 | void |
4943 | void |
3935 | ev_idle_start (EV_P_ ev_idle *w) |
4944 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3936 | { |
4945 | { |
3937 | if (expect_false (ev_is_active (w))) |
4946 | if (ecb_expect_false (ev_is_active (w))) |
3938 | return; |
4947 | return; |
3939 | |
4948 | |
3940 | pri_adjust (EV_A_ (W)w); |
4949 | pri_adjust (EV_A_ (W)w); |
3941 | |
4950 | |
3942 | EV_FREQUENT_CHECK; |
4951 | EV_FREQUENT_CHECK; |
… | |
… | |
3945 | int active = ++idlecnt [ABSPRI (w)]; |
4954 | int active = ++idlecnt [ABSPRI (w)]; |
3946 | |
4955 | |
3947 | ++idleall; |
4956 | ++idleall; |
3948 | ev_start (EV_A_ (W)w, active); |
4957 | ev_start (EV_A_ (W)w, active); |
3949 | |
4958 | |
3950 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4959 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3951 | idles [ABSPRI (w)][active - 1] = w; |
4960 | idles [ABSPRI (w)][active - 1] = w; |
3952 | } |
4961 | } |
3953 | |
4962 | |
3954 | EV_FREQUENT_CHECK; |
4963 | EV_FREQUENT_CHECK; |
3955 | } |
4964 | } |
3956 | |
4965 | |
3957 | void |
4966 | void |
3958 | ev_idle_stop (EV_P_ ev_idle *w) |
4967 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3959 | { |
4968 | { |
3960 | clear_pending (EV_A_ (W)w); |
4969 | clear_pending (EV_A_ (W)w); |
3961 | if (expect_false (!ev_is_active (w))) |
4970 | if (ecb_expect_false (!ev_is_active (w))) |
3962 | return; |
4971 | return; |
3963 | |
4972 | |
3964 | EV_FREQUENT_CHECK; |
4973 | EV_FREQUENT_CHECK; |
3965 | |
4974 | |
3966 | { |
4975 | { |
… | |
… | |
3977 | } |
4986 | } |
3978 | #endif |
4987 | #endif |
3979 | |
4988 | |
3980 | #if EV_PREPARE_ENABLE |
4989 | #if EV_PREPARE_ENABLE |
3981 | void |
4990 | void |
3982 | ev_prepare_start (EV_P_ ev_prepare *w) |
4991 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3983 | { |
4992 | { |
3984 | if (expect_false (ev_is_active (w))) |
4993 | if (ecb_expect_false (ev_is_active (w))) |
3985 | return; |
4994 | return; |
3986 | |
4995 | |
3987 | EV_FREQUENT_CHECK; |
4996 | EV_FREQUENT_CHECK; |
3988 | |
4997 | |
3989 | ev_start (EV_A_ (W)w, ++preparecnt); |
4998 | ev_start (EV_A_ (W)w, ++preparecnt); |
3990 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4999 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3991 | prepares [preparecnt - 1] = w; |
5000 | prepares [preparecnt - 1] = w; |
3992 | |
5001 | |
3993 | EV_FREQUENT_CHECK; |
5002 | EV_FREQUENT_CHECK; |
3994 | } |
5003 | } |
3995 | |
5004 | |
3996 | void |
5005 | void |
3997 | ev_prepare_stop (EV_P_ ev_prepare *w) |
5006 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3998 | { |
5007 | { |
3999 | clear_pending (EV_A_ (W)w); |
5008 | clear_pending (EV_A_ (W)w); |
4000 | if (expect_false (!ev_is_active (w))) |
5009 | if (ecb_expect_false (!ev_is_active (w))) |
4001 | return; |
5010 | return; |
4002 | |
5011 | |
4003 | EV_FREQUENT_CHECK; |
5012 | EV_FREQUENT_CHECK; |
4004 | |
5013 | |
4005 | { |
5014 | { |
… | |
… | |
4015 | } |
5024 | } |
4016 | #endif |
5025 | #endif |
4017 | |
5026 | |
4018 | #if EV_CHECK_ENABLE |
5027 | #if EV_CHECK_ENABLE |
4019 | void |
5028 | void |
4020 | ev_check_start (EV_P_ ev_check *w) |
5029 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4021 | { |
5030 | { |
4022 | if (expect_false (ev_is_active (w))) |
5031 | if (ecb_expect_false (ev_is_active (w))) |
4023 | return; |
5032 | return; |
4024 | |
5033 | |
4025 | EV_FREQUENT_CHECK; |
5034 | EV_FREQUENT_CHECK; |
4026 | |
5035 | |
4027 | ev_start (EV_A_ (W)w, ++checkcnt); |
5036 | ev_start (EV_A_ (W)w, ++checkcnt); |
4028 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5037 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4029 | checks [checkcnt - 1] = w; |
5038 | checks [checkcnt - 1] = w; |
4030 | |
5039 | |
4031 | EV_FREQUENT_CHECK; |
5040 | EV_FREQUENT_CHECK; |
4032 | } |
5041 | } |
4033 | |
5042 | |
4034 | void |
5043 | void |
4035 | ev_check_stop (EV_P_ ev_check *w) |
5044 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4036 | { |
5045 | { |
4037 | clear_pending (EV_A_ (W)w); |
5046 | clear_pending (EV_A_ (W)w); |
4038 | if (expect_false (!ev_is_active (w))) |
5047 | if (ecb_expect_false (!ev_is_active (w))) |
4039 | return; |
5048 | return; |
4040 | |
5049 | |
4041 | EV_FREQUENT_CHECK; |
5050 | EV_FREQUENT_CHECK; |
4042 | |
5051 | |
4043 | { |
5052 | { |
… | |
… | |
4052 | EV_FREQUENT_CHECK; |
5061 | EV_FREQUENT_CHECK; |
4053 | } |
5062 | } |
4054 | #endif |
5063 | #endif |
4055 | |
5064 | |
4056 | #if EV_EMBED_ENABLE |
5065 | #if EV_EMBED_ENABLE |
4057 | void noinline |
5066 | ecb_noinline |
|
|
5067 | void |
4058 | ev_embed_sweep (EV_P_ ev_embed *w) |
5068 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4059 | { |
5069 | { |
4060 | ev_run (w->other, EVRUN_NOWAIT); |
5070 | ev_run (w->other, EVRUN_NOWAIT); |
4061 | } |
5071 | } |
4062 | |
5072 | |
4063 | static void |
5073 | static void |
… | |
… | |
4085 | ev_run (EV_A_ EVRUN_NOWAIT); |
5095 | ev_run (EV_A_ EVRUN_NOWAIT); |
4086 | } |
5096 | } |
4087 | } |
5097 | } |
4088 | } |
5098 | } |
4089 | |
5099 | |
|
|
5100 | #if EV_FORK_ENABLE |
4090 | static void |
5101 | static void |
4091 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5102 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4092 | { |
5103 | { |
4093 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5104 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4094 | |
5105 | |
… | |
… | |
4101 | ev_run (EV_A_ EVRUN_NOWAIT); |
5112 | ev_run (EV_A_ EVRUN_NOWAIT); |
4102 | } |
5113 | } |
4103 | |
5114 | |
4104 | ev_embed_start (EV_A_ w); |
5115 | ev_embed_start (EV_A_ w); |
4105 | } |
5116 | } |
|
|
5117 | #endif |
4106 | |
5118 | |
4107 | #if 0 |
5119 | #if 0 |
4108 | static void |
5120 | static void |
4109 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5121 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4110 | { |
5122 | { |
4111 | ev_idle_stop (EV_A_ idle); |
5123 | ev_idle_stop (EV_A_ idle); |
4112 | } |
5124 | } |
4113 | #endif |
5125 | #endif |
4114 | |
5126 | |
4115 | void |
5127 | void |
4116 | ev_embed_start (EV_P_ ev_embed *w) |
5128 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4117 | { |
5129 | { |
4118 | if (expect_false (ev_is_active (w))) |
5130 | if (ecb_expect_false (ev_is_active (w))) |
4119 | return; |
5131 | return; |
4120 | |
5132 | |
4121 | { |
5133 | { |
4122 | EV_P = w->other; |
5134 | EV_P = w->other; |
4123 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5135 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4131 | |
5143 | |
4132 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5144 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4133 | ev_set_priority (&w->prepare, EV_MINPRI); |
5145 | ev_set_priority (&w->prepare, EV_MINPRI); |
4134 | ev_prepare_start (EV_A_ &w->prepare); |
5146 | ev_prepare_start (EV_A_ &w->prepare); |
4135 | |
5147 | |
|
|
5148 | #if EV_FORK_ENABLE |
4136 | ev_fork_init (&w->fork, embed_fork_cb); |
5149 | ev_fork_init (&w->fork, embed_fork_cb); |
4137 | ev_fork_start (EV_A_ &w->fork); |
5150 | ev_fork_start (EV_A_ &w->fork); |
|
|
5151 | #endif |
4138 | |
5152 | |
4139 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5153 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4140 | |
5154 | |
4141 | ev_start (EV_A_ (W)w, 1); |
5155 | ev_start (EV_A_ (W)w, 1); |
4142 | |
5156 | |
4143 | EV_FREQUENT_CHECK; |
5157 | EV_FREQUENT_CHECK; |
4144 | } |
5158 | } |
4145 | |
5159 | |
4146 | void |
5160 | void |
4147 | ev_embed_stop (EV_P_ ev_embed *w) |
5161 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4148 | { |
5162 | { |
4149 | clear_pending (EV_A_ (W)w); |
5163 | clear_pending (EV_A_ (W)w); |
4150 | if (expect_false (!ev_is_active (w))) |
5164 | if (ecb_expect_false (!ev_is_active (w))) |
4151 | return; |
5165 | return; |
4152 | |
5166 | |
4153 | EV_FREQUENT_CHECK; |
5167 | EV_FREQUENT_CHECK; |
4154 | |
5168 | |
4155 | ev_io_stop (EV_A_ &w->io); |
5169 | ev_io_stop (EV_A_ &w->io); |
4156 | ev_prepare_stop (EV_A_ &w->prepare); |
5170 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5171 | #if EV_FORK_ENABLE |
4157 | ev_fork_stop (EV_A_ &w->fork); |
5172 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5173 | #endif |
4158 | |
5174 | |
4159 | ev_stop (EV_A_ (W)w); |
5175 | ev_stop (EV_A_ (W)w); |
4160 | |
5176 | |
4161 | EV_FREQUENT_CHECK; |
5177 | EV_FREQUENT_CHECK; |
4162 | } |
5178 | } |
4163 | #endif |
5179 | #endif |
4164 | |
5180 | |
4165 | #if EV_FORK_ENABLE |
5181 | #if EV_FORK_ENABLE |
4166 | void |
5182 | void |
4167 | ev_fork_start (EV_P_ ev_fork *w) |
5183 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4168 | { |
5184 | { |
4169 | if (expect_false (ev_is_active (w))) |
5185 | if (ecb_expect_false (ev_is_active (w))) |
4170 | return; |
5186 | return; |
4171 | |
5187 | |
4172 | EV_FREQUENT_CHECK; |
5188 | EV_FREQUENT_CHECK; |
4173 | |
5189 | |
4174 | ev_start (EV_A_ (W)w, ++forkcnt); |
5190 | ev_start (EV_A_ (W)w, ++forkcnt); |
4175 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5191 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4176 | forks [forkcnt - 1] = w; |
5192 | forks [forkcnt - 1] = w; |
4177 | |
5193 | |
4178 | EV_FREQUENT_CHECK; |
5194 | EV_FREQUENT_CHECK; |
4179 | } |
5195 | } |
4180 | |
5196 | |
4181 | void |
5197 | void |
4182 | ev_fork_stop (EV_P_ ev_fork *w) |
5198 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4183 | { |
5199 | { |
4184 | clear_pending (EV_A_ (W)w); |
5200 | clear_pending (EV_A_ (W)w); |
4185 | if (expect_false (!ev_is_active (w))) |
5201 | if (ecb_expect_false (!ev_is_active (w))) |
4186 | return; |
5202 | return; |
4187 | |
5203 | |
4188 | EV_FREQUENT_CHECK; |
5204 | EV_FREQUENT_CHECK; |
4189 | |
5205 | |
4190 | { |
5206 | { |
… | |
… | |
4200 | } |
5216 | } |
4201 | #endif |
5217 | #endif |
4202 | |
5218 | |
4203 | #if EV_CLEANUP_ENABLE |
5219 | #if EV_CLEANUP_ENABLE |
4204 | void |
5220 | void |
4205 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
5221 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4206 | { |
5222 | { |
4207 | if (expect_false (ev_is_active (w))) |
5223 | if (ecb_expect_false (ev_is_active (w))) |
4208 | return; |
5224 | return; |
4209 | |
5225 | |
4210 | EV_FREQUENT_CHECK; |
5226 | EV_FREQUENT_CHECK; |
4211 | |
5227 | |
4212 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5228 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4213 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5229 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4214 | cleanups [cleanupcnt - 1] = w; |
5230 | cleanups [cleanupcnt - 1] = w; |
4215 | |
5231 | |
4216 | /* cleanup watchers should never keep a refcount on the loop */ |
5232 | /* cleanup watchers should never keep a refcount on the loop */ |
4217 | ev_unref (EV_A); |
5233 | ev_unref (EV_A); |
4218 | EV_FREQUENT_CHECK; |
5234 | EV_FREQUENT_CHECK; |
4219 | } |
5235 | } |
4220 | |
5236 | |
4221 | void |
5237 | void |
4222 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
5238 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4223 | { |
5239 | { |
4224 | clear_pending (EV_A_ (W)w); |
5240 | clear_pending (EV_A_ (W)w); |
4225 | if (expect_false (!ev_is_active (w))) |
5241 | if (ecb_expect_false (!ev_is_active (w))) |
4226 | return; |
5242 | return; |
4227 | |
5243 | |
4228 | EV_FREQUENT_CHECK; |
5244 | EV_FREQUENT_CHECK; |
4229 | ev_ref (EV_A); |
5245 | ev_ref (EV_A); |
4230 | |
5246 | |
… | |
… | |
4241 | } |
5257 | } |
4242 | #endif |
5258 | #endif |
4243 | |
5259 | |
4244 | #if EV_ASYNC_ENABLE |
5260 | #if EV_ASYNC_ENABLE |
4245 | void |
5261 | void |
4246 | ev_async_start (EV_P_ ev_async *w) |
5262 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4247 | { |
5263 | { |
4248 | if (expect_false (ev_is_active (w))) |
5264 | if (ecb_expect_false (ev_is_active (w))) |
4249 | return; |
5265 | return; |
4250 | |
5266 | |
4251 | w->sent = 0; |
5267 | w->sent = 0; |
4252 | |
5268 | |
4253 | evpipe_init (EV_A); |
5269 | evpipe_init (EV_A); |
4254 | |
5270 | |
4255 | EV_FREQUENT_CHECK; |
5271 | EV_FREQUENT_CHECK; |
4256 | |
5272 | |
4257 | ev_start (EV_A_ (W)w, ++asynccnt); |
5273 | ev_start (EV_A_ (W)w, ++asynccnt); |
4258 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5274 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4259 | asyncs [asynccnt - 1] = w; |
5275 | asyncs [asynccnt - 1] = w; |
4260 | |
5276 | |
4261 | EV_FREQUENT_CHECK; |
5277 | EV_FREQUENT_CHECK; |
4262 | } |
5278 | } |
4263 | |
5279 | |
4264 | void |
5280 | void |
4265 | ev_async_stop (EV_P_ ev_async *w) |
5281 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4266 | { |
5282 | { |
4267 | clear_pending (EV_A_ (W)w); |
5283 | clear_pending (EV_A_ (W)w); |
4268 | if (expect_false (!ev_is_active (w))) |
5284 | if (ecb_expect_false (!ev_is_active (w))) |
4269 | return; |
5285 | return; |
4270 | |
5286 | |
4271 | EV_FREQUENT_CHECK; |
5287 | EV_FREQUENT_CHECK; |
4272 | |
5288 | |
4273 | { |
5289 | { |
… | |
… | |
4281 | |
5297 | |
4282 | EV_FREQUENT_CHECK; |
5298 | EV_FREQUENT_CHECK; |
4283 | } |
5299 | } |
4284 | |
5300 | |
4285 | void |
5301 | void |
4286 | ev_async_send (EV_P_ ev_async *w) |
5302 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4287 | { |
5303 | { |
4288 | w->sent = 1; |
5304 | w->sent = 1; |
4289 | evpipe_write (EV_A_ &async_pending); |
5305 | evpipe_write (EV_A_ &async_pending); |
4290 | } |
5306 | } |
4291 | #endif |
5307 | #endif |
… | |
… | |
4328 | |
5344 | |
4329 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5345 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4330 | } |
5346 | } |
4331 | |
5347 | |
4332 | void |
5348 | void |
4333 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5349 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4334 | { |
5350 | { |
4335 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5351 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4336 | |
|
|
4337 | if (expect_false (!once)) |
|
|
4338 | { |
|
|
4339 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4340 | return; |
|
|
4341 | } |
|
|
4342 | |
5352 | |
4343 | once->cb = cb; |
5353 | once->cb = cb; |
4344 | once->arg = arg; |
5354 | once->arg = arg; |
4345 | |
5355 | |
4346 | ev_init (&once->io, once_cb_io); |
5356 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4359 | } |
5369 | } |
4360 | |
5370 | |
4361 | /*****************************************************************************/ |
5371 | /*****************************************************************************/ |
4362 | |
5372 | |
4363 | #if EV_WALK_ENABLE |
5373 | #if EV_WALK_ENABLE |
4364 | void ecb_cold |
5374 | ecb_cold |
|
|
5375 | void |
4365 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5376 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4366 | { |
5377 | { |
4367 | int i, j; |
5378 | int i, j; |
4368 | ev_watcher_list *wl, *wn; |
5379 | ev_watcher_list *wl, *wn; |
4369 | |
5380 | |
4370 | if (types & (EV_IO | EV_EMBED)) |
5381 | if (types & (EV_IO | EV_EMBED)) |