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 |
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|
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 |
… | |
… | |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
114 | # endif |
114 | # endif |
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 |
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|
118 | # endif |
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|
119 | |
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|
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 EV_FEATURE_BACKENDS |
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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 |
118 | # endif |
127 | # endif |
119 | |
128 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
130 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
… | |
… | |
162 | # define EV_USE_EVENTFD 0 |
171 | # define EV_USE_EVENTFD 0 |
163 | # endif |
172 | # endif |
164 | |
173 | |
165 | #endif |
174 | #endif |
166 | |
175 | |
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|
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
177 | * a limit of 1024 into their select. Where people have brains, |
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178 | * OS X engineers apparently have a vacuum. Or maybe they were |
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|
179 | * ordered to have a vacuum, or they do anything for money. |
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|
180 | * This might help. Or not. |
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181 | * Note that this must be defined early, as other include files |
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182 | * will rely on this define as well. |
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183 | */ |
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184 | #define _DARWIN_UNLIMITED_SELECT 1 |
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|
185 | |
167 | #include <stdlib.h> |
186 | #include <stdlib.h> |
168 | #include <string.h> |
187 | #include <string.h> |
169 | #include <fcntl.h> |
188 | #include <fcntl.h> |
170 | #include <stddef.h> |
189 | #include <stddef.h> |
171 | |
190 | |
… | |
… | |
201 | # include <sys/wait.h> |
220 | # include <sys/wait.h> |
202 | # include <unistd.h> |
221 | # include <unistd.h> |
203 | #else |
222 | #else |
204 | # include <io.h> |
223 | # include <io.h> |
205 | # define WIN32_LEAN_AND_MEAN |
224 | # define WIN32_LEAN_AND_MEAN |
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|
225 | # include <winsock2.h> |
206 | # include <windows.h> |
226 | # include <windows.h> |
207 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # endif |
229 | # endif |
210 | # undef EV_AVOID_STDIO |
230 | # undef EV_AVOID_STDIO |
211 | #endif |
231 | #endif |
212 | |
232 | |
213 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
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 |
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|
216 | * ordered to have a vacuum, or they do anything for money. |
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217 | * This might help. Or not. |
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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 */ |
233 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | |
234 | |
223 | /* try to deduce the maximum number of signals on this platform */ |
235 | /* try to deduce the maximum number of signals on this platform */ |
224 | #if defined (EV_NSIG) |
236 | #if defined EV_NSIG |
225 | /* use what's provided */ |
237 | /* use what's provided */ |
226 | #elif defined (NSIG) |
238 | #elif defined NSIG |
227 | # define EV_NSIG (NSIG) |
239 | # define EV_NSIG (NSIG) |
228 | #elif defined(_NSIG) |
240 | #elif defined _NSIG |
229 | # define EV_NSIG (_NSIG) |
241 | # define EV_NSIG (_NSIG) |
230 | #elif defined (SIGMAX) |
242 | #elif defined SIGMAX |
231 | # define EV_NSIG (SIGMAX+1) |
243 | # define EV_NSIG (SIGMAX+1) |
232 | #elif defined (SIG_MAX) |
244 | #elif defined SIG_MAX |
233 | # define EV_NSIG (SIG_MAX+1) |
245 | # define EV_NSIG (SIG_MAX+1) |
234 | #elif defined (_SIG_MAX) |
246 | #elif defined _SIG_MAX |
235 | # define EV_NSIG (_SIG_MAX+1) |
247 | # define EV_NSIG (_SIG_MAX+1) |
236 | #elif defined (MAXSIG) |
248 | #elif defined MAXSIG |
237 | # define EV_NSIG (MAXSIG+1) |
249 | # define EV_NSIG (MAXSIG+1) |
238 | #elif defined (MAX_SIG) |
250 | #elif defined MAX_SIG |
239 | # define EV_NSIG (MAX_SIG+1) |
251 | # define EV_NSIG (MAX_SIG+1) |
240 | #elif defined (SIGARRAYSIZE) |
252 | #elif defined SIGARRAYSIZE |
241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
253 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | #elif defined (_sys_nsig) |
254 | #elif defined _sys_nsig |
243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
255 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | #else |
256 | #else |
245 | # error "unable to find value for NSIG, please report" |
257 | # 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 |
258 | #endif |
250 | |
259 | |
251 | #ifndef EV_USE_FLOOR |
260 | #ifndef EV_USE_FLOOR |
252 | # define EV_USE_FLOOR 0 |
261 | # define EV_USE_FLOOR 0 |
253 | #endif |
262 | #endif |
254 | |
263 | |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
264 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | # if __linux && __GLIBC__ >= 2 |
265 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
266 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # else |
267 | # else |
259 | # define EV_USE_CLOCK_SYSCALL 0 |
268 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # endif |
269 | # endif |
261 | #endif |
270 | #endif |
262 | |
271 | |
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|
272 | #if !(_POSIX_TIMERS > 0) |
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|
273 | # ifndef EV_USE_MONOTONIC |
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274 | # define EV_USE_MONOTONIC 0 |
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|
275 | # endif |
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276 | # ifndef EV_USE_REALTIME |
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277 | # define EV_USE_REALTIME 0 |
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278 | # endif |
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279 | #endif |
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280 | |
263 | #ifndef EV_USE_MONOTONIC |
281 | #ifndef EV_USE_MONOTONIC |
264 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
282 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
283 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # else |
284 | # else |
267 | # define EV_USE_MONOTONIC 0 |
285 | # define EV_USE_MONOTONIC 0 |
268 | # endif |
286 | # endif |
269 | #endif |
287 | #endif |
… | |
… | |
306 | |
324 | |
307 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
308 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
309 | #endif |
327 | #endif |
310 | |
328 | |
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329 | #ifndef EV_USE_LINUXAIO |
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330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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331 | # define EV_USE_LINUXAIO 1 |
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332 | # else |
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333 | # define EV_USE_LINUXAIO 0 |
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334 | # endif |
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335 | #endif |
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336 | |
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337 | #ifndef EV_USE_IOURING |
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338 | # if __linux |
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339 | # define EV_USE_IOURING 0 |
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340 | # else |
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341 | # define EV_USE_IOURING 0 |
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342 | # endif |
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343 | #endif |
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344 | |
311 | #ifndef EV_USE_INOTIFY |
345 | #ifndef EV_USE_INOTIFY |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
346 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
313 | # define EV_USE_INOTIFY EV_FEATURE_OS |
347 | # define EV_USE_INOTIFY EV_FEATURE_OS |
314 | # else |
348 | # else |
315 | # define EV_USE_INOTIFY 0 |
349 | # define EV_USE_INOTIFY 0 |
… | |
… | |
356 | |
390 | |
357 | #ifndef EV_HEAP_CACHE_AT |
391 | #ifndef EV_HEAP_CACHE_AT |
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
392 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | #endif |
393 | #endif |
360 | |
394 | |
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395 | #ifdef __ANDROID__ |
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396 | /* supposedly, android doesn't typedef fd_mask */ |
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397 | # undef EV_USE_SELECT |
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398 | # define EV_USE_SELECT 0 |
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399 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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400 | # undef EV_USE_CLOCK_SYSCALL |
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401 | # define EV_USE_CLOCK_SYSCALL 0 |
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402 | #endif |
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403 | |
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404 | /* aix's poll.h seems to cause lots of trouble */ |
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405 | #ifdef _AIX |
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406 | /* AIX has a completely broken poll.h header */ |
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407 | # undef EV_USE_POLL |
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408 | # define EV_USE_POLL 0 |
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409 | #endif |
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410 | |
361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
411 | /* 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. */ |
412 | /* which makes programs even slower. might work on other unices, too. */ |
363 | #if EV_USE_CLOCK_SYSCALL |
413 | #if EV_USE_CLOCK_SYSCALL |
364 | # include <syscall.h> |
414 | # include <sys/syscall.h> |
365 | # ifdef SYS_clock_gettime |
415 | # ifdef SYS_clock_gettime |
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
416 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # undef EV_USE_MONOTONIC |
417 | # undef EV_USE_MONOTONIC |
368 | # define EV_USE_MONOTONIC 1 |
418 | # define EV_USE_MONOTONIC 1 |
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|
419 | # define EV_NEED_SYSCALL 1 |
369 | # else |
420 | # else |
370 | # undef EV_USE_CLOCK_SYSCALL |
421 | # undef EV_USE_CLOCK_SYSCALL |
371 | # define EV_USE_CLOCK_SYSCALL 0 |
422 | # define EV_USE_CLOCK_SYSCALL 0 |
372 | # endif |
423 | # endif |
373 | #endif |
424 | #endif |
374 | |
425 | |
375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
426 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
376 | |
427 | |
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 | |
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383 | #ifndef CLOCK_MONOTONIC |
428 | #ifndef CLOCK_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
429 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 0 |
430 | # define EV_USE_MONOTONIC 0 |
386 | #endif |
431 | #endif |
387 | |
432 | |
… | |
… | |
395 | # define EV_USE_INOTIFY 0 |
440 | # define EV_USE_INOTIFY 0 |
396 | #endif |
441 | #endif |
397 | |
442 | |
398 | #if !EV_USE_NANOSLEEP |
443 | #if !EV_USE_NANOSLEEP |
399 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
444 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
400 | # if !defined(_WIN32) && !defined(__hpux) |
445 | # if !defined _WIN32 && !defined __hpux |
401 | # include <sys/select.h> |
446 | # include <sys/select.h> |
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447 | # endif |
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448 | #endif |
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449 | |
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450 | #if EV_USE_LINUXAIO |
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451 | # include <sys/syscall.h> |
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452 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
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453 | # define EV_NEED_SYSCALL 1 |
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454 | # else |
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455 | # undef EV_USE_LINUXAIO |
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456 | # define EV_USE_LINUXAIO 0 |
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457 | # endif |
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458 | #endif |
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459 | |
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460 | #if EV_USE_IOURING |
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461 | # include <sys/syscall.h> |
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462 | # if !SYS_io_uring_setup && __linux && !__alpha |
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463 | # define SYS_io_uring_setup 425 |
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464 | # define SYS_io_uring_enter 426 |
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465 | # define SYS_io_uring_wregister 427 |
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466 | # endif |
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467 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
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468 | # define EV_NEED_SYSCALL 1 |
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469 | # else |
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470 | # undef EV_USE_IOURING |
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|
471 | # define EV_USE_IOURING 0 |
402 | # endif |
472 | # endif |
403 | #endif |
473 | #endif |
404 | |
474 | |
405 | #if EV_USE_INOTIFY |
475 | #if EV_USE_INOTIFY |
406 | # include <sys/statfs.h> |
476 | # include <sys/statfs.h> |
… | |
… | |
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
478 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | # ifndef IN_DONT_FOLLOW |
479 | # ifndef IN_DONT_FOLLOW |
410 | # undef EV_USE_INOTIFY |
480 | # undef EV_USE_INOTIFY |
411 | # define EV_USE_INOTIFY 0 |
481 | # define EV_USE_INOTIFY 0 |
412 | # endif |
482 | # endif |
413 | #endif |
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|
414 | |
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415 | #if EV_SELECT_IS_WINSOCKET |
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|
416 | # include <winsock.h> |
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|
417 | #endif |
483 | #endif |
418 | |
484 | |
419 | #if EV_USE_EVENTFD |
485 | #if EV_USE_EVENTFD |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
486 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
421 | # include <stdint.h> |
487 | # include <stdint.h> |
… | |
… | |
452 | uint32_t ssi_signo; |
518 | uint32_t ssi_signo; |
453 | char pad[128 - sizeof (uint32_t)]; |
519 | char pad[128 - sizeof (uint32_t)]; |
454 | }; |
520 | }; |
455 | #endif |
521 | #endif |
456 | |
522 | |
457 | /**/ |
523 | /*****************************************************************************/ |
458 | |
524 | |
459 | #if EV_VERIFY >= 3 |
525 | #if EV_VERIFY >= 3 |
460 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
526 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
461 | #else |
527 | #else |
462 | # define EV_FREQUENT_CHECK do { } while (0) |
528 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
467 | * This value is good at least till the year 4000. |
533 | * This value is good at least till the year 4000. |
468 | */ |
534 | */ |
469 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
535 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
470 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
536 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
471 | |
537 | |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
538 | #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) */ |
539 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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540 | |
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541 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
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542 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
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543 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
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544 | #define EV_TSTAMP_HUGE \ |
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545 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
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546 | : 0 < (time_t)4294967295 ? 4294967295. \ |
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547 | : 2147483647.) \ |
474 | |
548 | |
475 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
549 | #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) |
550 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
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551 | #define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e6) |
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|
552 | #define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e9) |
477 | |
553 | |
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
554 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
479 | /* ECB.H BEGIN */ |
555 | /* ECB.H BEGIN */ |
480 | /* |
556 | /* |
481 | * libecb - http://software.schmorp.de/pkg/libecb |
557 | * libecb - http://software.schmorp.de/pkg/libecb |
482 | * |
558 | * |
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
559 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
484 | * Copyright (©) 2011 Emanuele Giaquinta |
560 | * Copyright (©) 2011 Emanuele Giaquinta |
485 | * All rights reserved. |
561 | * All rights reserved. |
486 | * |
562 | * |
487 | * Redistribution and use in source and binary forms, with or without modifica- |
563 | * Redistribution and use in source and binary forms, with or without modifica- |
488 | * tion, are permitted provided that the following conditions are met: |
564 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
578 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
579 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
580 | * 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 |
581 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
582 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
583 | * |
|
|
584 | * Alternatively, the contents of this file may be used under the terms of |
|
|
585 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
586 | * in which case the provisions of the GPL are applicable instead of |
|
|
587 | * the above. If you wish to allow the use of your version of this file |
|
|
588 | * only under the terms of the GPL and not to allow others to use your |
|
|
589 | * version of this file under the BSD license, indicate your decision |
|
|
590 | * by deleting the provisions above and replace them with the notice |
|
|
591 | * and other provisions required by the GPL. If you do not delete the |
|
|
592 | * provisions above, a recipient may use your version of this file under |
|
|
593 | * either the BSD or the GPL. |
507 | */ |
594 | */ |
508 | |
595 | |
509 | #ifndef ECB_H |
596 | #ifndef ECB_H |
510 | #define ECB_H |
597 | #define ECB_H |
|
|
598 | |
|
|
599 | /* 16 bits major, 16 bits minor */ |
|
|
600 | #define ECB_VERSION 0x00010006 |
511 | |
601 | |
512 | #ifdef _WIN32 |
602 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
603 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
604 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
605 | typedef signed short int16_t; |
… | |
… | |
521 | typedef unsigned long long uint64_t; |
611 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
612 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
613 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
614 | typedef unsigned __int64 uint64_t; |
525 | #endif |
615 | #endif |
|
|
616 | #ifdef _WIN64 |
|
|
617 | #define ECB_PTRSIZE 8 |
|
|
618 | typedef uint64_t uintptr_t; |
|
|
619 | typedef int64_t intptr_t; |
|
|
620 | #else |
|
|
621 | #define ECB_PTRSIZE 4 |
|
|
622 | typedef uint32_t uintptr_t; |
|
|
623 | typedef int32_t intptr_t; |
|
|
624 | #endif |
526 | #else |
625 | #else |
527 | #include <inttypes.h> |
626 | #include <inttypes.h> |
|
|
627 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
|
|
628 | #define ECB_PTRSIZE 8 |
|
|
629 | #else |
|
|
630 | #define ECB_PTRSIZE 4 |
|
|
631 | #endif |
|
|
632 | #endif |
|
|
633 | |
|
|
634 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
635 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
636 | |
|
|
637 | /* work around x32 idiocy by defining proper macros */ |
|
|
638 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
639 | #if _ILP32 |
|
|
640 | #define ECB_AMD64_X32 1 |
|
|
641 | #else |
|
|
642 | #define ECB_AMD64 1 |
|
|
643 | #endif |
528 | #endif |
644 | #endif |
529 | |
645 | |
530 | /* many compilers define _GNUC_ to some versions but then only implement |
646 | /* many compilers define _GNUC_ to some versions but then only implement |
531 | * what their idiot authors think are the "more important" extensions, |
647 | * what their idiot authors think are the "more important" extensions, |
532 | * causing enormous grief in return for some better fake benchmark numbers. |
648 | * causing enormous grief in return for some better fake benchmark numbers. |
533 | * or so. |
649 | * or so. |
534 | * we try to detect these and simply assume they are not gcc - if they have |
650 | * 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. |
651 | * an issue with that they should have done it right in the first place. |
536 | */ |
652 | */ |
537 | #ifndef ECB_GCC_VERSION |
|
|
538 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
653 | #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 |
654 | #define ECB_GCC_VERSION(major,minor) 0 |
540 | #else |
655 | #else |
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
656 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
542 | #endif |
657 | #endif |
|
|
658 | |
|
|
659 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
660 | |
|
|
661 | #if __clang__ && defined __has_builtin |
|
|
662 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
663 | #else |
|
|
664 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
665 | #endif |
|
|
666 | |
|
|
667 | #if __clang__ && defined __has_extension |
|
|
668 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
669 | #else |
|
|
670 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
671 | #endif |
|
|
672 | |
|
|
673 | #define ECB_CPP (__cplusplus+0) |
|
|
674 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
675 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
676 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
677 | |
|
|
678 | #if ECB_CPP |
|
|
679 | #define ECB_C 0 |
|
|
680 | #define ECB_STDC_VERSION 0 |
|
|
681 | #else |
|
|
682 | #define ECB_C 1 |
|
|
683 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
687 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
688 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
689 | |
|
|
690 | #if ECB_CPP |
|
|
691 | #define ECB_EXTERN_C extern "C" |
|
|
692 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
693 | #define ECB_EXTERN_C_END } |
|
|
694 | #else |
|
|
695 | #define ECB_EXTERN_C extern |
|
|
696 | #define ECB_EXTERN_C_BEG |
|
|
697 | #define ECB_EXTERN_C_END |
543 | #endif |
698 | #endif |
544 | |
699 | |
545 | /*****************************************************************************/ |
700 | /*****************************************************************************/ |
546 | |
701 | |
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
702 | /* 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 */ |
703 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
549 | |
704 | |
550 | #if ECB_NO_THREADS |
705 | #if ECB_NO_THREADS |
551 | # define ECB_NO_SMP 1 |
706 | #define ECB_NO_SMP 1 |
552 | #endif |
707 | #endif |
553 | |
708 | |
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
709 | #if ECB_NO_SMP |
555 | #define ECB_MEMORY_FENCE do { } while (0) |
710 | #define ECB_MEMORY_FENCE do { } while (0) |
556 | #endif |
711 | #endif |
557 | |
712 | |
|
|
713 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
714 | #if __xlC__ && ECB_CPP |
|
|
715 | #include <builtins.h> |
|
|
716 | #endif |
|
|
717 | |
|
|
718 | #if 1400 <= _MSC_VER |
|
|
719 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
720 | #endif |
|
|
721 | |
558 | #ifndef ECB_MEMORY_FENCE |
722 | #ifndef ECB_MEMORY_FENCE |
559 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
723 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
724 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
560 | #if __i386 || __i386__ |
725 | #if __i386 || __i386__ |
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
726 | #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 */ |
727 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
728 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
729 | #elif ECB_GCC_AMD64 |
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
730 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
731 | #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 */ |
732 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
733 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
734 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
735 | #elif defined __ARM_ARCH_2__ \ |
|
|
736 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
737 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
738 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
739 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
740 | || defined __ARM_ARCH_5TEJ__ |
|
|
741 | /* 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__ ) \ |
742 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
571 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
743 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
744 | || defined __ARM_ARCH_6T2__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
745 | #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__ ) \ |
746 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
574 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
747 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
748 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
576 | #elif __sparc || __sparc__ |
749 | #elif __aarch64__ |
|
|
750 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
751 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
753 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
754 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
580 | #elif defined(__s390__) || defined(__s390x__) |
755 | #elif defined __s390__ || defined __s390x__ |
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
756 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
582 | #elif defined(__mips__) |
757 | #elif defined __mips__ |
|
|
758 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
759 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
760 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
761 | #elif defined __alpha__ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
762 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
763 | #elif defined __hppa__ |
|
|
764 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
765 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
766 | #elif defined __ia64__ |
|
|
767 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
768 | #elif defined __m68k__ |
|
|
769 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
770 | #elif defined __m88k__ |
|
|
771 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
772 | #elif defined __sh__ |
|
|
773 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
584 | #endif |
774 | #endif |
585 | #endif |
775 | #endif |
586 | #endif |
776 | #endif |
587 | |
777 | |
588 | #ifndef ECB_MEMORY_FENCE |
778 | #ifndef ECB_MEMORY_FENCE |
|
|
779 | #if ECB_GCC_VERSION(4,7) |
|
|
780 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
781 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
782 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
783 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
784 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
785 | |
|
|
786 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
787 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
788 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
789 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
790 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
791 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
792 | |
589 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
793 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
590 | #define ECB_MEMORY_FENCE __sync_synchronize () |
794 | #define ECB_MEMORY_FENCE __sync_synchronize () |
591 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
795 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
592 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
796 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
797 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
798 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
799 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
800 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
593 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
801 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
594 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
802 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
595 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
803 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
596 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
804 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
597 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
805 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
598 | #elif defined(_WIN32) |
806 | #elif defined _WIN32 |
599 | #include <WinNT.h> |
807 | #include <WinNT.h> |
600 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
808 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
601 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
809 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
602 | #include <mbarrier.h> |
810 | #include <mbarrier.h> |
603 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
811 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
604 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
812 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
605 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
813 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
814 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
606 | #elif __xlC__ |
815 | #elif __xlC__ |
607 | #define ECB_MEMORY_FENCE __sync () |
816 | #define ECB_MEMORY_FENCE __sync () |
|
|
817 | #endif |
|
|
818 | #endif |
|
|
819 | |
|
|
820 | #ifndef ECB_MEMORY_FENCE |
|
|
821 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
822 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
823 | /* not just C11 atomics and atomic accesses */ |
|
|
824 | #include <stdatomic.h> |
|
|
825 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
826 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
827 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
608 | #endif |
828 | #endif |
609 | #endif |
829 | #endif |
610 | |
830 | |
611 | #ifndef ECB_MEMORY_FENCE |
831 | #ifndef ECB_MEMORY_FENCE |
612 | #if !ECB_AVOID_PTHREADS |
832 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
624 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
844 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
625 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
845 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
626 | #endif |
846 | #endif |
627 | #endif |
847 | #endif |
628 | |
848 | |
629 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
849 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
630 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
850 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
631 | #endif |
851 | #endif |
632 | |
852 | |
633 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
853 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
634 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
854 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
635 | #endif |
855 | #endif |
636 | |
856 | |
|
|
857 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
858 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
859 | #endif |
|
|
860 | |
637 | /*****************************************************************************/ |
861 | /*****************************************************************************/ |
638 | |
862 | |
639 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
863 | #if ECB_CPP |
640 | |
|
|
641 | #if __cplusplus |
|
|
642 | #define ecb_inline static inline |
864 | #define ecb_inline static inline |
643 | #elif ECB_GCC_VERSION(2,5) |
865 | #elif ECB_GCC_VERSION(2,5) |
644 | #define ecb_inline static __inline__ |
866 | #define ecb_inline static __inline__ |
645 | #elif ECB_C99 |
867 | #elif ECB_C99 |
646 | #define ecb_inline static inline |
868 | #define ecb_inline static inline |
… | |
… | |
660 | |
882 | |
661 | #define ECB_CONCAT_(a, b) a ## b |
883 | #define ECB_CONCAT_(a, b) a ## b |
662 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
884 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
663 | #define ECB_STRINGIFY_(a) # a |
885 | #define ECB_STRINGIFY_(a) # a |
664 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
886 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
887 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
665 | |
888 | |
666 | #define ecb_function_ ecb_inline |
889 | #define ecb_function_ ecb_inline |
667 | |
890 | |
668 | #if ECB_GCC_VERSION(3,1) |
891 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
669 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
892 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
893 | #else |
|
|
894 | #define ecb_attribute(attrlist) |
|
|
895 | #endif |
|
|
896 | |
|
|
897 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
670 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
898 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
899 | #else |
|
|
900 | /* possible C11 impl for integral types |
|
|
901 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
902 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
903 | |
|
|
904 | #define ecb_is_constant(expr) 0 |
|
|
905 | #endif |
|
|
906 | |
|
|
907 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
671 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
908 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
909 | #else |
|
|
910 | #define ecb_expect(expr,value) (expr) |
|
|
911 | #endif |
|
|
912 | |
|
|
913 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
672 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
914 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
673 | #else |
915 | #else |
674 | #define ecb_attribute(attrlist) |
|
|
675 | #define ecb_is_constant(expr) 0 |
|
|
676 | #define ecb_expect(expr,value) (expr) |
|
|
677 | #define ecb_prefetch(addr,rw,locality) |
916 | #define ecb_prefetch(addr,rw,locality) |
678 | #endif |
917 | #endif |
679 | |
918 | |
680 | /* no emulation for ecb_decltype */ |
919 | /* no emulation for ecb_decltype */ |
681 | #if ECB_GCC_VERSION(4,5) |
920 | #if ECB_CPP11 |
|
|
921 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
922 | template<class T> struct ecb_decltype_t { typedef T type; }; |
682 | #define ecb_decltype(x) __decltype(x) |
923 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
683 | #elif ECB_GCC_VERSION(3,0) |
924 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
684 | #define ecb_decltype(x) __typeof(x) |
925 | #define ecb_decltype(x) __typeof__ (x) |
685 | #endif |
926 | #endif |
686 | |
927 | |
|
|
928 | #if _MSC_VER >= 1300 |
|
|
929 | #define ecb_deprecated __declspec (deprecated) |
|
|
930 | #else |
|
|
931 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
932 | #endif |
|
|
933 | |
|
|
934 | #if _MSC_VER >= 1500 |
|
|
935 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
936 | #elif ECB_GCC_VERSION(4,5) |
|
|
937 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
938 | #else |
|
|
939 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
940 | #endif |
|
|
941 | |
|
|
942 | #if _MSC_VER >= 1400 |
|
|
943 | #define ecb_noinline __declspec (noinline) |
|
|
944 | #else |
687 | #define ecb_noinline ecb_attribute ((__noinline__)) |
945 | #define ecb_noinline ecb_attribute ((__noinline__)) |
688 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
946 | #endif |
|
|
947 | |
689 | #define ecb_unused ecb_attribute ((__unused__)) |
948 | #define ecb_unused ecb_attribute ((__unused__)) |
690 | #define ecb_const ecb_attribute ((__const__)) |
949 | #define ecb_const ecb_attribute ((__const__)) |
691 | #define ecb_pure ecb_attribute ((__pure__)) |
950 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
951 | |
|
|
952 | #if ECB_C11 || __IBMC_NORETURN |
|
|
953 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
954 | #define ecb_noreturn _Noreturn |
|
|
955 | #elif ECB_CPP11 |
|
|
956 | #define ecb_noreturn [[noreturn]] |
|
|
957 | #elif _MSC_VER >= 1200 |
|
|
958 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
959 | #define ecb_noreturn __declspec (noreturn) |
|
|
960 | #else |
|
|
961 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
962 | #endif |
692 | |
963 | |
693 | #if ECB_GCC_VERSION(4,3) |
964 | #if ECB_GCC_VERSION(4,3) |
694 | #define ecb_artificial ecb_attribute ((__artificial__)) |
965 | #define ecb_artificial ecb_attribute ((__artificial__)) |
695 | #define ecb_hot ecb_attribute ((__hot__)) |
966 | #define ecb_hot ecb_attribute ((__hot__)) |
696 | #define ecb_cold ecb_attribute ((__cold__)) |
967 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
708 | /* for compatibility to the rest of the world */ |
979 | /* for compatibility to the rest of the world */ |
709 | #define ecb_likely(expr) ecb_expect_true (expr) |
980 | #define ecb_likely(expr) ecb_expect_true (expr) |
710 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
981 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
711 | |
982 | |
712 | /* count trailing zero bits and count # of one bits */ |
983 | /* count trailing zero bits and count # of one bits */ |
713 | #if ECB_GCC_VERSION(3,4) |
984 | #if ECB_GCC_VERSION(3,4) \ |
|
|
985 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
986 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
987 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
714 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
988 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
715 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
989 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
716 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
990 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
717 | #define ecb_ctz32(x) __builtin_ctz (x) |
991 | #define ecb_ctz32(x) __builtin_ctz (x) |
718 | #define ecb_ctz64(x) __builtin_ctzll (x) |
992 | #define ecb_ctz64(x) __builtin_ctzll (x) |
719 | #define ecb_popcount32(x) __builtin_popcount (x) |
993 | #define ecb_popcount32(x) __builtin_popcount (x) |
720 | /* no popcountll */ |
994 | /* no popcountll */ |
721 | #else |
995 | #else |
722 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
996 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
723 | ecb_function_ int |
997 | ecb_function_ ecb_const int |
724 | ecb_ctz32 (uint32_t x) |
998 | ecb_ctz32 (uint32_t x) |
725 | { |
999 | { |
|
|
1000 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1001 | unsigned long r; |
|
|
1002 | _BitScanForward (&r, x); |
|
|
1003 | return (int)r; |
|
|
1004 | #else |
726 | int r = 0; |
1005 | int r = 0; |
727 | |
1006 | |
728 | x &= ~x + 1; /* this isolates the lowest bit */ |
1007 | x &= ~x + 1; /* this isolates the lowest bit */ |
729 | |
1008 | |
730 | #if ECB_branchless_on_i386 |
1009 | #if ECB_branchless_on_i386 |
… | |
… | |
740 | if (x & 0xff00ff00) r += 8; |
1019 | if (x & 0xff00ff00) r += 8; |
741 | if (x & 0xffff0000) r += 16; |
1020 | if (x & 0xffff0000) r += 16; |
742 | #endif |
1021 | #endif |
743 | |
1022 | |
744 | return r; |
1023 | return r; |
|
|
1024 | #endif |
745 | } |
1025 | } |
746 | |
1026 | |
747 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1027 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
748 | ecb_function_ int |
1028 | ecb_function_ ecb_const int |
749 | ecb_ctz64 (uint64_t x) |
1029 | ecb_ctz64 (uint64_t x) |
750 | { |
1030 | { |
|
|
1031 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1032 | unsigned long r; |
|
|
1033 | _BitScanForward64 (&r, x); |
|
|
1034 | return (int)r; |
|
|
1035 | #else |
751 | int shift = x & 0xffffffffU ? 0 : 32; |
1036 | int shift = x & 0xffffffff ? 0 : 32; |
752 | return ecb_ctz32 (x >> shift) + shift; |
1037 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1038 | #endif |
753 | } |
1039 | } |
754 | |
1040 | |
755 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1041 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
756 | ecb_function_ int |
1042 | ecb_function_ ecb_const int |
757 | ecb_popcount32 (uint32_t x) |
1043 | ecb_popcount32 (uint32_t x) |
758 | { |
1044 | { |
759 | x -= (x >> 1) & 0x55555555; |
1045 | x -= (x >> 1) & 0x55555555; |
760 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1046 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
761 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1047 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
762 | x *= 0x01010101; |
1048 | x *= 0x01010101; |
763 | |
1049 | |
764 | return x >> 24; |
1050 | return x >> 24; |
765 | } |
1051 | } |
766 | |
1052 | |
767 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1053 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
768 | ecb_function_ int ecb_ld32 (uint32_t x) |
1054 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
769 | { |
1055 | { |
|
|
1056 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1057 | unsigned long r; |
|
|
1058 | _BitScanReverse (&r, x); |
|
|
1059 | return (int)r; |
|
|
1060 | #else |
770 | int r = 0; |
1061 | int r = 0; |
771 | |
1062 | |
772 | if (x >> 16) { x >>= 16; r += 16; } |
1063 | if (x >> 16) { x >>= 16; r += 16; } |
773 | if (x >> 8) { x >>= 8; r += 8; } |
1064 | if (x >> 8) { x >>= 8; r += 8; } |
774 | if (x >> 4) { x >>= 4; r += 4; } |
1065 | if (x >> 4) { x >>= 4; r += 4; } |
775 | if (x >> 2) { x >>= 2; r += 2; } |
1066 | if (x >> 2) { x >>= 2; r += 2; } |
776 | if (x >> 1) { r += 1; } |
1067 | if (x >> 1) { r += 1; } |
777 | |
1068 | |
778 | return r; |
1069 | return r; |
|
|
1070 | #endif |
779 | } |
1071 | } |
780 | |
1072 | |
781 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1073 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
782 | ecb_function_ int ecb_ld64 (uint64_t x) |
1074 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
783 | { |
1075 | { |
|
|
1076 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1077 | unsigned long r; |
|
|
1078 | _BitScanReverse64 (&r, x); |
|
|
1079 | return (int)r; |
|
|
1080 | #else |
784 | int r = 0; |
1081 | int r = 0; |
785 | |
1082 | |
786 | if (x >> 32) { x >>= 32; r += 32; } |
1083 | if (x >> 32) { x >>= 32; r += 32; } |
787 | |
1084 | |
788 | return r + ecb_ld32 (x); |
1085 | return r + ecb_ld32 (x); |
|
|
1086 | #endif |
789 | } |
1087 | } |
790 | #endif |
1088 | #endif |
791 | |
1089 | |
|
|
1090 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1091 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1092 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1093 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1094 | |
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1095 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
793 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1096 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
794 | { |
1097 | { |
795 | return ( (x * 0x0802U & 0x22110U) |
1098 | return ( (x * 0x0802U & 0x22110U) |
796 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1099 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
797 | } |
1100 | } |
798 | |
1101 | |
799 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1102 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
800 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1103 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
801 | { |
1104 | { |
802 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1105 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
803 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1106 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
804 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1107 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
805 | x = ( x >> 8 ) | ( x << 8); |
1108 | x = ( x >> 8 ) | ( x << 8); |
806 | |
1109 | |
807 | return x; |
1110 | return x; |
808 | } |
1111 | } |
809 | |
1112 | |
810 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1113 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
811 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1114 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
812 | { |
1115 | { |
813 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1116 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
814 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1117 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
815 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1118 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
816 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1119 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
819 | return x; |
1122 | return x; |
820 | } |
1123 | } |
821 | |
1124 | |
822 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1125 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
823 | /* so for this version we are lazy */ |
1126 | /* so for this version we are lazy */ |
824 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1127 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
825 | ecb_function_ int |
1128 | ecb_function_ ecb_const int |
826 | ecb_popcount64 (uint64_t x) |
1129 | ecb_popcount64 (uint64_t x) |
827 | { |
1130 | { |
828 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1131 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
829 | } |
1132 | } |
830 | |
1133 | |
831 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1134 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
832 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1135 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
833 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1136 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
834 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1137 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
835 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1138 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
836 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1139 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
837 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1140 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
838 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1141 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
839 | |
1142 | |
840 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1143 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
841 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1144 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
842 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1145 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
843 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1146 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
844 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1147 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
845 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1148 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
846 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1149 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
847 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1150 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
848 | |
1151 | |
849 | #if ECB_GCC_VERSION(4,3) |
1152 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1153 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1154 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1155 | #else |
850 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1156 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1157 | #endif |
851 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1158 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
852 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1159 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1160 | #elif _MSC_VER |
|
|
1161 | #include <stdlib.h> |
|
|
1162 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1163 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1164 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
853 | #else |
1165 | #else |
854 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1166 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
855 | ecb_function_ uint16_t |
1167 | ecb_function_ ecb_const uint16_t |
856 | ecb_bswap16 (uint16_t x) |
1168 | ecb_bswap16 (uint16_t x) |
857 | { |
1169 | { |
858 | return ecb_rotl16 (x, 8); |
1170 | return ecb_rotl16 (x, 8); |
859 | } |
1171 | } |
860 | |
1172 | |
861 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1173 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
862 | ecb_function_ uint32_t |
1174 | ecb_function_ ecb_const uint32_t |
863 | ecb_bswap32 (uint32_t x) |
1175 | ecb_bswap32 (uint32_t x) |
864 | { |
1176 | { |
865 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1177 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
866 | } |
1178 | } |
867 | |
1179 | |
868 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1180 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
869 | ecb_function_ uint64_t |
1181 | ecb_function_ ecb_const uint64_t |
870 | ecb_bswap64 (uint64_t x) |
1182 | ecb_bswap64 (uint64_t x) |
871 | { |
1183 | { |
872 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1184 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
873 | } |
1185 | } |
874 | #endif |
1186 | #endif |
875 | |
1187 | |
876 | #if ECB_GCC_VERSION(4,5) |
1188 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
877 | #define ecb_unreachable() __builtin_unreachable () |
1189 | #define ecb_unreachable() __builtin_unreachable () |
878 | #else |
1190 | #else |
879 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1191 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
880 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1192 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
881 | ecb_inline void ecb_unreachable (void) { } |
1193 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
882 | #endif |
1194 | #endif |
883 | |
1195 | |
884 | /* try to tell the compiler that some condition is definitely true */ |
1196 | /* try to tell the compiler that some condition is definitely true */ |
885 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1197 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
886 | |
1198 | |
887 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1199 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
888 | ecb_inline unsigned char |
1200 | ecb_inline ecb_const uint32_t |
889 | ecb_byteorder_helper (void) |
1201 | ecb_byteorder_helper (void) |
890 | { |
1202 | { |
891 | const uint32_t u = 0x11223344; |
1203 | /* the union code still generates code under pressure in gcc, */ |
892 | return *(unsigned char *)&u; |
1204 | /* but less than using pointers, and always seems to */ |
|
|
1205 | /* successfully return a constant. */ |
|
|
1206 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1207 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1208 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1209 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1210 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1211 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1212 | return 0x44332211; |
|
|
1213 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1214 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1215 | #define ECB_BIG_ENDIAN 1 |
|
|
1216 | return 0x11223344; |
|
|
1217 | #else |
|
|
1218 | union |
|
|
1219 | { |
|
|
1220 | uint8_t c[4]; |
|
|
1221 | uint32_t u; |
|
|
1222 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1223 | return u.u; |
|
|
1224 | #endif |
893 | } |
1225 | } |
894 | |
1226 | |
895 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1227 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
896 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1228 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
897 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1229 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
898 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1230 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
899 | |
1231 | |
900 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1232 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
901 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1233 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
902 | #else |
1234 | #else |
903 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1235 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
904 | #endif |
1236 | #endif |
905 | |
1237 | |
906 | #if __cplusplus |
1238 | #if ECB_CPP |
907 | template<typename T> |
1239 | template<typename T> |
908 | static inline T ecb_div_rd (T val, T div) |
1240 | static inline T ecb_div_rd (T val, T div) |
909 | { |
1241 | { |
910 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1242 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
911 | } |
1243 | } |
… | |
… | |
928 | } |
1260 | } |
929 | #else |
1261 | #else |
930 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1262 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
931 | #endif |
1263 | #endif |
932 | |
1264 | |
|
|
1265 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1266 | ecb_function_ ecb_const uint32_t |
|
|
1267 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1268 | { |
|
|
1269 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1270 | int e = (x >> 10) & 0x001f; |
|
|
1271 | unsigned int m = x & 0x03ff; |
|
|
1272 | |
|
|
1273 | if (ecb_expect_false (e == 31)) |
|
|
1274 | /* infinity or NaN */ |
|
|
1275 | e = 255 - (127 - 15); |
|
|
1276 | else if (ecb_expect_false (!e)) |
|
|
1277 | { |
|
|
1278 | if (ecb_expect_true (!m)) |
|
|
1279 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1280 | e = 0 - (127 - 15); |
|
|
1281 | else |
|
|
1282 | { |
|
|
1283 | /* subnormal, renormalise */ |
|
|
1284 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1285 | |
|
|
1286 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1287 | e -= s - 1; |
|
|
1288 | } |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1292 | e += 127 - 15; |
|
|
1293 | |
|
|
1294 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1295 | } |
|
|
1296 | |
|
|
1297 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1298 | ecb_function_ ecb_const uint16_t |
|
|
1299 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1300 | { |
|
|
1301 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1302 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1303 | unsigned int m = x & 0x007fffff; |
|
|
1304 | |
|
|
1305 | x &= 0x7fffffff; |
|
|
1306 | |
|
|
1307 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1308 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1309 | { |
|
|
1310 | /* mantissa round-to-even */ |
|
|
1311 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1312 | |
|
|
1313 | /* handle overflow */ |
|
|
1314 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1315 | { |
|
|
1316 | m >>= 1; |
|
|
1317 | e += 1; |
|
|
1318 | } |
|
|
1319 | |
|
|
1320 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | /* handle large numbers and infinity */ |
|
|
1324 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1325 | return s | 0x7c00; |
|
|
1326 | |
|
|
1327 | /* handle zero, subnormals and small numbers */ |
|
|
1328 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1329 | { |
|
|
1330 | /* zero */ |
|
|
1331 | if (ecb_expect_true (!x)) |
|
|
1332 | return s; |
|
|
1333 | |
|
|
1334 | /* handle subnormals */ |
|
|
1335 | |
|
|
1336 | /* too small, will be zero */ |
|
|
1337 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1338 | return s; |
|
|
1339 | |
|
|
1340 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1341 | |
|
|
1342 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1343 | { |
|
|
1344 | unsigned int bits = 14 - e; |
|
|
1345 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1346 | unsigned int even = (m >> bits) & 1; |
|
|
1347 | |
|
|
1348 | /* if this overflows, we will end up with a normalised number */ |
|
|
1349 | m = (m + half + even) >> bits; |
|
|
1350 | } |
|
|
1351 | |
|
|
1352 | return s | m; |
|
|
1353 | } |
|
|
1354 | |
|
|
1355 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1356 | m >>= 13; |
|
|
1357 | |
|
|
1358 | return s | 0x7c00 | m | !m; |
|
|
1359 | } |
|
|
1360 | |
|
|
1361 | /*******************************************************************************/ |
|
|
1362 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1363 | |
|
|
1364 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1365 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1366 | #if 0 \ |
|
|
1367 | || __i386 || __i386__ \ |
|
|
1368 | || ECB_GCC_AMD64 \ |
|
|
1369 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1370 | || defined __s390__ || defined __s390x__ \ |
|
|
1371 | || defined __mips__ \ |
|
|
1372 | || defined __alpha__ \ |
|
|
1373 | || defined __hppa__ \ |
|
|
1374 | || defined __ia64__ \ |
|
|
1375 | || defined __m68k__ \ |
|
|
1376 | || defined __m88k__ \ |
|
|
1377 | || defined __sh__ \ |
|
|
1378 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1379 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1380 | || defined __aarch64__ |
|
|
1381 | #define ECB_STDFP 1 |
|
|
1382 | #include <string.h> /* for memcpy */ |
|
|
1383 | #else |
|
|
1384 | #define ECB_STDFP 0 |
|
|
1385 | #endif |
|
|
1386 | |
|
|
1387 | #ifndef ECB_NO_LIBM |
|
|
1388 | |
|
|
1389 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1390 | |
|
|
1391 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1392 | #ifdef INFINITY |
|
|
1393 | #define ECB_INFINITY INFINITY |
|
|
1394 | #else |
|
|
1395 | #define ECB_INFINITY HUGE_VAL |
|
|
1396 | #endif |
|
|
1397 | |
|
|
1398 | #ifdef NAN |
|
|
1399 | #define ECB_NAN NAN |
|
|
1400 | #else |
|
|
1401 | #define ECB_NAN ECB_INFINITY |
|
|
1402 | #endif |
|
|
1403 | |
|
|
1404 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1405 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1406 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1407 | #else |
|
|
1408 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1409 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1410 | #endif |
|
|
1411 | |
|
|
1412 | /* convert a float to ieee single/binary32 */ |
|
|
1413 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1414 | ecb_function_ ecb_const uint32_t |
|
|
1415 | ecb_float_to_binary32 (float x) |
|
|
1416 | { |
|
|
1417 | uint32_t r; |
|
|
1418 | |
|
|
1419 | #if ECB_STDFP |
|
|
1420 | memcpy (&r, &x, 4); |
|
|
1421 | #else |
|
|
1422 | /* slow emulation, works for anything but -0 */ |
|
|
1423 | uint32_t m; |
|
|
1424 | int e; |
|
|
1425 | |
|
|
1426 | if (x == 0e0f ) return 0x00000000U; |
|
|
1427 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1428 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1429 | if (x != x ) return 0x7fbfffffU; |
|
|
1430 | |
|
|
1431 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1432 | |
|
|
1433 | r = m & 0x80000000U; |
|
|
1434 | |
|
|
1435 | if (r) |
|
|
1436 | m = -m; |
|
|
1437 | |
|
|
1438 | if (e <= -126) |
|
|
1439 | { |
|
|
1440 | m &= 0xffffffU; |
|
|
1441 | m >>= (-125 - e); |
|
|
1442 | e = -126; |
|
|
1443 | } |
|
|
1444 | |
|
|
1445 | r |= (e + 126) << 23; |
|
|
1446 | r |= m & 0x7fffffU; |
|
|
1447 | #endif |
|
|
1448 | |
|
|
1449 | return r; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | /* converts an ieee single/binary32 to a float */ |
|
|
1453 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1454 | ecb_function_ ecb_const float |
|
|
1455 | ecb_binary32_to_float (uint32_t x) |
|
|
1456 | { |
|
|
1457 | float r; |
|
|
1458 | |
|
|
1459 | #if ECB_STDFP |
|
|
1460 | memcpy (&r, &x, 4); |
|
|
1461 | #else |
|
|
1462 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1463 | int neg = x >> 31; |
|
|
1464 | int e = (x >> 23) & 0xffU; |
|
|
1465 | |
|
|
1466 | x &= 0x7fffffU; |
|
|
1467 | |
|
|
1468 | if (e) |
|
|
1469 | x |= 0x800000U; |
|
|
1470 | else |
|
|
1471 | e = 1; |
|
|
1472 | |
|
|
1473 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1474 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1475 | |
|
|
1476 | r = neg ? -r : r; |
|
|
1477 | #endif |
|
|
1478 | |
|
|
1479 | return r; |
|
|
1480 | } |
|
|
1481 | |
|
|
1482 | /* convert a double to ieee double/binary64 */ |
|
|
1483 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1484 | ecb_function_ ecb_const uint64_t |
|
|
1485 | ecb_double_to_binary64 (double x) |
|
|
1486 | { |
|
|
1487 | uint64_t r; |
|
|
1488 | |
|
|
1489 | #if ECB_STDFP |
|
|
1490 | memcpy (&r, &x, 8); |
|
|
1491 | #else |
|
|
1492 | /* slow emulation, works for anything but -0 */ |
|
|
1493 | uint64_t m; |
|
|
1494 | int e; |
|
|
1495 | |
|
|
1496 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1497 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1498 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1499 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1500 | |
|
|
1501 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1502 | |
|
|
1503 | r = m & 0x8000000000000000;; |
|
|
1504 | |
|
|
1505 | if (r) |
|
|
1506 | m = -m; |
|
|
1507 | |
|
|
1508 | if (e <= -1022) |
|
|
1509 | { |
|
|
1510 | m &= 0x1fffffffffffffU; |
|
|
1511 | m >>= (-1021 - e); |
|
|
1512 | e = -1022; |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1516 | r |= m & 0xfffffffffffffU; |
|
|
1517 | #endif |
|
|
1518 | |
|
|
1519 | return r; |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | /* converts an ieee double/binary64 to a double */ |
|
|
1523 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1524 | ecb_function_ ecb_const double |
|
|
1525 | ecb_binary64_to_double (uint64_t x) |
|
|
1526 | { |
|
|
1527 | double r; |
|
|
1528 | |
|
|
1529 | #if ECB_STDFP |
|
|
1530 | memcpy (&r, &x, 8); |
|
|
1531 | #else |
|
|
1532 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1533 | int neg = x >> 63; |
|
|
1534 | int e = (x >> 52) & 0x7ffU; |
|
|
1535 | |
|
|
1536 | x &= 0xfffffffffffffU; |
|
|
1537 | |
|
|
1538 | if (e) |
|
|
1539 | x |= 0x10000000000000U; |
|
|
1540 | else |
|
|
1541 | e = 1; |
|
|
1542 | |
|
|
1543 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1544 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1545 | |
|
|
1546 | r = neg ? -r : r; |
|
|
1547 | #endif |
|
|
1548 | |
|
|
1549 | return r; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | /* convert a float to ieee half/binary16 */ |
|
|
1553 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1554 | ecb_function_ ecb_const uint16_t |
|
|
1555 | ecb_float_to_binary16 (float x) |
|
|
1556 | { |
|
|
1557 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | /* convert an ieee half/binary16 to float */ |
|
|
1561 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1562 | ecb_function_ ecb_const float |
|
|
1563 | ecb_binary16_to_float (uint16_t x) |
|
|
1564 | { |
|
|
1565 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | #endif |
|
|
1569 | |
933 | #endif |
1570 | #endif |
934 | |
1571 | |
935 | /* ECB.H END */ |
1572 | /* ECB.H END */ |
936 | |
1573 | |
937 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1574 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
938 | /* if your architecture doesn't need memory fences, e.g. because it is |
1575 | /* if your architecture doesn't need memory fences, e.g. because it is |
939 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1576 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
940 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1577 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
941 | * libev, in which cases the memory fences become nops. |
1578 | * libev, in which cases the memory fences become nops. |
942 | * alternatively, you can remove this #error and link against libpthread, |
1579 | * alternatively, you can remove this #error and link against libpthread, |
943 | * which will then provide the memory fences. |
1580 | * which will then provide the memory fences. |
944 | */ |
1581 | */ |
945 | # error "memory fences not defined for your architecture, please report" |
1582 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
949 | # define ECB_MEMORY_FENCE do { } while (0) |
1586 | # define ECB_MEMORY_FENCE do { } while (0) |
950 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1587 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
951 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1588 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
952 | #endif |
1589 | #endif |
953 | |
1590 | |
954 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
955 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
956 | #define noinline ecb_noinline |
|
|
957 | |
|
|
958 | #define inline_size ecb_inline |
1591 | #define inline_size ecb_inline |
959 | |
1592 | |
960 | #if EV_FEATURE_CODE |
1593 | #if EV_FEATURE_CODE |
961 | # define inline_speed ecb_inline |
1594 | # define inline_speed ecb_inline |
962 | #else |
1595 | #else |
963 | # define inline_speed static noinline |
1596 | # define inline_speed ecb_noinline static |
964 | #endif |
1597 | #endif |
|
|
1598 | |
|
|
1599 | /*****************************************************************************/ |
|
|
1600 | /* raw syscall wrappers */ |
|
|
1601 | |
|
|
1602 | #if EV_NEED_SYSCALL |
|
|
1603 | |
|
|
1604 | #include <sys/syscall.h> |
|
|
1605 | |
|
|
1606 | /* |
|
|
1607 | * define some syscall wrappers for common architectures |
|
|
1608 | * this is mostly for nice looks during debugging, not performance. |
|
|
1609 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1610 | * enough for linux aio. |
|
|
1611 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1612 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1613 | */ |
|
|
1614 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1615 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1616 | |
|
|
1617 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1618 | ({ \ |
|
|
1619 | long res; \ |
|
|
1620 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1621 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1622 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1623 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1624 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1625 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1626 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1627 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1628 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1629 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1630 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1631 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1632 | __asm__ __volatile__ ( \ |
|
|
1633 | "syscall\n\t" \ |
|
|
1634 | : "=a" (res) \ |
|
|
1635 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1636 | : "cc", "r11", "cx", "memory"); \ |
|
|
1637 | errno = -res; \ |
|
|
1638 | res; \ |
|
|
1639 | }) |
|
|
1640 | |
|
|
1641 | #endif |
|
|
1642 | |
|
|
1643 | #ifdef ev_syscall |
|
|
1644 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1645 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1646 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1647 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1648 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1649 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1650 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1651 | #else |
|
|
1652 | #define ev_syscall0(nr) syscall (nr) |
|
|
1653 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1654 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1655 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1656 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1657 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1658 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1659 | #endif |
|
|
1660 | |
|
|
1661 | #endif |
|
|
1662 | |
|
|
1663 | /*****************************************************************************/ |
965 | |
1664 | |
966 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1665 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
967 | |
1666 | |
968 | #if EV_MINPRI == EV_MAXPRI |
1667 | #if EV_MINPRI == EV_MAXPRI |
969 | # define ABSPRI(w) (((W)w), 0) |
1668 | # define ABSPRI(w) (((W)w), 0) |
970 | #else |
1669 | #else |
971 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1670 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
972 | #endif |
1671 | #endif |
973 | |
1672 | |
974 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1673 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
975 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
976 | |
1674 | |
977 | typedef ev_watcher *W; |
1675 | typedef ev_watcher *W; |
978 | typedef ev_watcher_list *WL; |
1676 | typedef ev_watcher_list *WL; |
979 | typedef ev_watcher_time *WT; |
1677 | typedef ev_watcher_time *WT; |
980 | |
1678 | |
… | |
… | |
1005 | # include "ev_win32.c" |
1703 | # include "ev_win32.c" |
1006 | #endif |
1704 | #endif |
1007 | |
1705 | |
1008 | /*****************************************************************************/ |
1706 | /*****************************************************************************/ |
1009 | |
1707 | |
|
|
1708 | #if EV_USE_LINUXAIO |
|
|
1709 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1710 | #endif |
|
|
1711 | |
1010 | /* define a suitable floor function (only used by periodics atm) */ |
1712 | /* define a suitable floor function (only used by periodics atm) */ |
1011 | |
1713 | |
1012 | #if EV_USE_FLOOR |
1714 | #if EV_USE_FLOOR |
1013 | # include <math.h> |
1715 | # include <math.h> |
1014 | # define ev_floor(v) floor (v) |
1716 | # define ev_floor(v) floor (v) |
1015 | #else |
1717 | #else |
1016 | |
1718 | |
1017 | #include <float.h> |
1719 | #include <float.h> |
1018 | |
1720 | |
1019 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1721 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1722 | ecb_noinline |
1020 | static ev_tstamp noinline |
1723 | static ev_tstamp |
1021 | ev_floor (ev_tstamp v) |
1724 | ev_floor (ev_tstamp v) |
1022 | { |
1725 | { |
1023 | /* the choice of shift factor is not terribly important */ |
1726 | /* the choice of shift factor is not terribly important */ |
1024 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1727 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1025 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1728 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1026 | #else |
1729 | #else |
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1730 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1028 | #endif |
1731 | #endif |
1029 | |
1732 | |
|
|
1733 | /* special treatment for negative arguments */ |
|
|
1734 | if (ecb_expect_false (v < 0.)) |
|
|
1735 | { |
|
|
1736 | ev_tstamp f = -ev_floor (-v); |
|
|
1737 | |
|
|
1738 | return f - (f == v ? 0 : 1); |
|
|
1739 | } |
|
|
1740 | |
1030 | /* argument too large for an unsigned long? */ |
1741 | /* argument too large for an unsigned long? then reduce it */ |
1031 | if (expect_false (v >= shift)) |
1742 | if (ecb_expect_false (v >= shift)) |
1032 | { |
1743 | { |
1033 | ev_tstamp f; |
1744 | ev_tstamp f; |
1034 | |
1745 | |
1035 | if (v == v - 1.) |
1746 | if (v == v - 1.) |
1036 | return v; /* very large number */ |
1747 | return v; /* very large numbers are assumed to be integer */ |
1037 | |
1748 | |
1038 | f = shift * ev_floor (v * (1. / shift)); |
1749 | f = shift * ev_floor (v * (1. / shift)); |
1039 | return f + ev_floor (v - f); |
1750 | return f + ev_floor (v - f); |
1040 | } |
1751 | } |
1041 | |
1752 | |
1042 | /* special treatment for negative args? */ |
|
|
1043 | if (expect_false (v < 0.)) |
|
|
1044 | { |
|
|
1045 | ev_tstamp f = -ev_floor (-v); |
|
|
1046 | |
|
|
1047 | return f - (f == v ? 0 : 1); |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /* fits into an unsigned long */ |
1753 | /* fits into an unsigned long */ |
1051 | return (unsigned long)v; |
1754 | return (unsigned long)v; |
1052 | } |
1755 | } |
1053 | |
1756 | |
1054 | #endif |
1757 | #endif |
… | |
… | |
1057 | |
1760 | |
1058 | #ifdef __linux |
1761 | #ifdef __linux |
1059 | # include <sys/utsname.h> |
1762 | # include <sys/utsname.h> |
1060 | #endif |
1763 | #endif |
1061 | |
1764 | |
1062 | static unsigned int noinline ecb_cold |
1765 | ecb_noinline ecb_cold |
|
|
1766 | static unsigned int |
1063 | ev_linux_version (void) |
1767 | ev_linux_version (void) |
1064 | { |
1768 | { |
1065 | #ifdef __linux |
1769 | #ifdef __linux |
1066 | unsigned int v = 0; |
1770 | unsigned int v = 0; |
1067 | struct utsname buf; |
1771 | struct utsname buf; |
… | |
… | |
1096 | } |
1800 | } |
1097 | |
1801 | |
1098 | /*****************************************************************************/ |
1802 | /*****************************************************************************/ |
1099 | |
1803 | |
1100 | #if EV_AVOID_STDIO |
1804 | #if EV_AVOID_STDIO |
1101 | static void noinline ecb_cold |
1805 | ecb_noinline ecb_cold |
|
|
1806 | static void |
1102 | ev_printerr (const char *msg) |
1807 | ev_printerr (const char *msg) |
1103 | { |
1808 | { |
1104 | write (STDERR_FILENO, msg, strlen (msg)); |
1809 | write (STDERR_FILENO, msg, strlen (msg)); |
1105 | } |
1810 | } |
1106 | #endif |
1811 | #endif |
1107 | |
1812 | |
1108 | static void (*syserr_cb)(const char *msg); |
1813 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1109 | |
1814 | |
1110 | void ecb_cold |
1815 | ecb_cold |
|
|
1816 | void |
1111 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1817 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1112 | { |
1818 | { |
1113 | syserr_cb = cb; |
1819 | syserr_cb = cb; |
1114 | } |
1820 | } |
1115 | |
1821 | |
1116 | static void noinline ecb_cold |
1822 | ecb_noinline ecb_cold |
|
|
1823 | static void |
1117 | ev_syserr (const char *msg) |
1824 | ev_syserr (const char *msg) |
1118 | { |
1825 | { |
1119 | if (!msg) |
1826 | if (!msg) |
1120 | msg = "(libev) system error"; |
1827 | msg = "(libev) system error"; |
1121 | |
1828 | |
… | |
… | |
1134 | abort (); |
1841 | abort (); |
1135 | } |
1842 | } |
1136 | } |
1843 | } |
1137 | |
1844 | |
1138 | static void * |
1845 | static void * |
1139 | ev_realloc_emul (void *ptr, long size) |
1846 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1140 | { |
1847 | { |
1141 | #if __GLIBC__ |
|
|
1142 | return realloc (ptr, size); |
|
|
1143 | #else |
|
|
1144 | /* some systems, notably openbsd and darwin, fail to properly |
1848 | /* some systems, notably openbsd and darwin, fail to properly |
1145 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1849 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1146 | * the single unix specification, so work around them here. |
1850 | * the single unix specification, so work around them here. |
|
|
1851 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1852 | * despite documenting it otherwise. |
1147 | */ |
1853 | */ |
1148 | |
1854 | |
1149 | if (size) |
1855 | if (size) |
1150 | return realloc (ptr, size); |
1856 | return realloc (ptr, size); |
1151 | |
1857 | |
1152 | free (ptr); |
1858 | free (ptr); |
1153 | return 0; |
1859 | return 0; |
1154 | #endif |
|
|
1155 | } |
1860 | } |
1156 | |
1861 | |
1157 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1862 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1158 | |
1863 | |
1159 | void ecb_cold |
1864 | ecb_cold |
|
|
1865 | void |
1160 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1866 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1161 | { |
1867 | { |
1162 | alloc = cb; |
1868 | alloc = cb; |
1163 | } |
1869 | } |
1164 | |
1870 | |
1165 | inline_speed void * |
1871 | inline_speed void * |
… | |
… | |
1192 | typedef struct |
1898 | typedef struct |
1193 | { |
1899 | { |
1194 | WL head; |
1900 | WL head; |
1195 | unsigned char events; /* the events watched for */ |
1901 | unsigned char events; /* the events watched for */ |
1196 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1902 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1197 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1903 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1198 | unsigned char unused; |
1904 | unsigned char eflags; /* flags field for use by backends */ |
1199 | #if EV_USE_EPOLL |
1905 | #if EV_USE_EPOLL |
1200 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1906 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1201 | #endif |
1907 | #endif |
1202 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1908 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1203 | SOCKET handle; |
1909 | SOCKET handle; |
… | |
… | |
1267 | static int ev_default_loop_ptr; |
1973 | static int ev_default_loop_ptr; |
1268 | |
1974 | |
1269 | #endif |
1975 | #endif |
1270 | |
1976 | |
1271 | #if EV_FEATURE_API |
1977 | #if EV_FEATURE_API |
1272 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1978 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1273 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1979 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1274 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1980 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1275 | #else |
1981 | #else |
1276 | # define EV_RELEASE_CB (void)0 |
1982 | # define EV_RELEASE_CB (void)0 |
1277 | # define EV_ACQUIRE_CB (void)0 |
1983 | # define EV_ACQUIRE_CB (void)0 |
1278 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1984 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1282 | |
1988 | |
1283 | /*****************************************************************************/ |
1989 | /*****************************************************************************/ |
1284 | |
1990 | |
1285 | #ifndef EV_HAVE_EV_TIME |
1991 | #ifndef EV_HAVE_EV_TIME |
1286 | ev_tstamp |
1992 | ev_tstamp |
1287 | ev_time (void) |
1993 | ev_time (void) EV_NOEXCEPT |
1288 | { |
1994 | { |
1289 | #if EV_USE_REALTIME |
1995 | #if EV_USE_REALTIME |
1290 | if (expect_true (have_realtime)) |
1996 | if (ecb_expect_true (have_realtime)) |
1291 | { |
1997 | { |
1292 | struct timespec ts; |
1998 | struct timespec ts; |
1293 | clock_gettime (CLOCK_REALTIME, &ts); |
1999 | clock_gettime (CLOCK_REALTIME, &ts); |
1294 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2000 | return EV_TS_GET (ts); |
1295 | } |
2001 | } |
1296 | #endif |
2002 | #endif |
1297 | |
2003 | |
1298 | struct timeval tv; |
2004 | struct timeval tv; |
1299 | gettimeofday (&tv, 0); |
2005 | gettimeofday (&tv, 0); |
1300 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2006 | return EV_TV_GET (tv); |
1301 | } |
2007 | } |
1302 | #endif |
2008 | #endif |
1303 | |
2009 | |
1304 | inline_size ev_tstamp |
2010 | inline_size ev_tstamp |
1305 | get_clock (void) |
2011 | get_clock (void) |
1306 | { |
2012 | { |
1307 | #if EV_USE_MONOTONIC |
2013 | #if EV_USE_MONOTONIC |
1308 | if (expect_true (have_monotonic)) |
2014 | if (ecb_expect_true (have_monotonic)) |
1309 | { |
2015 | { |
1310 | struct timespec ts; |
2016 | struct timespec ts; |
1311 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2017 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1312 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2018 | return EV_TS_GET (ts); |
1313 | } |
2019 | } |
1314 | #endif |
2020 | #endif |
1315 | |
2021 | |
1316 | return ev_time (); |
2022 | return ev_time (); |
1317 | } |
2023 | } |
1318 | |
2024 | |
1319 | #if EV_MULTIPLICITY |
2025 | #if EV_MULTIPLICITY |
1320 | ev_tstamp |
2026 | ev_tstamp |
1321 | ev_now (EV_P) |
2027 | ev_now (EV_P) EV_NOEXCEPT |
1322 | { |
2028 | { |
1323 | return ev_rt_now; |
2029 | return ev_rt_now; |
1324 | } |
2030 | } |
1325 | #endif |
2031 | #endif |
1326 | |
2032 | |
1327 | void |
2033 | void |
1328 | ev_sleep (ev_tstamp delay) |
2034 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1329 | { |
2035 | { |
1330 | if (delay > 0.) |
2036 | if (delay > 0.) |
1331 | { |
2037 | { |
1332 | #if EV_USE_NANOSLEEP |
2038 | #if EV_USE_NANOSLEEP |
1333 | struct timespec ts; |
2039 | struct timespec ts; |
1334 | |
2040 | |
1335 | EV_TS_SET (ts, delay); |
2041 | EV_TS_SET (ts, delay); |
1336 | nanosleep (&ts, 0); |
2042 | nanosleep (&ts, 0); |
1337 | #elif defined(_WIN32) |
2043 | #elif defined _WIN32 |
|
|
2044 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2045 | /* compared to select (µs) or nanosleep (ns) */ |
1338 | Sleep ((unsigned long)(delay * 1e3)); |
2046 | Sleep ((unsigned long)(delay * 1e3)); |
1339 | #else |
2047 | #else |
1340 | struct timeval tv; |
2048 | struct timeval tv; |
1341 | |
2049 | |
1342 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2050 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1373 | } |
2081 | } |
1374 | |
2082 | |
1375 | return ncur; |
2083 | return ncur; |
1376 | } |
2084 | } |
1377 | |
2085 | |
1378 | static void * noinline ecb_cold |
2086 | ecb_noinline ecb_cold |
|
|
2087 | static void * |
1379 | array_realloc (int elem, void *base, int *cur, int cnt) |
2088 | array_realloc (int elem, void *base, int *cur, int cnt) |
1380 | { |
2089 | { |
1381 | *cur = array_nextsize (elem, *cur, cnt); |
2090 | *cur = array_nextsize (elem, *cur, cnt); |
1382 | return ev_realloc (base, elem * *cur); |
2091 | return ev_realloc (base, elem * *cur); |
1383 | } |
2092 | } |
1384 | |
2093 | |
|
|
2094 | #define array_needsize_noinit(base,offset,count) |
|
|
2095 | |
1385 | #define array_init_zero(base,count) \ |
2096 | #define array_needsize_zerofill(base,offset,count) \ |
1386 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2097 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1387 | |
2098 | |
1388 | #define array_needsize(type,base,cur,cnt,init) \ |
2099 | #define array_needsize(type,base,cur,cnt,init) \ |
1389 | if (expect_false ((cnt) > (cur))) \ |
2100 | if (ecb_expect_false ((cnt) > (cur))) \ |
1390 | { \ |
2101 | { \ |
1391 | int ecb_unused ocur_ = (cur); \ |
2102 | ecb_unused int ocur_ = (cur); \ |
1392 | (base) = (type *)array_realloc \ |
2103 | (base) = (type *)array_realloc \ |
1393 | (sizeof (type), (base), &(cur), (cnt)); \ |
2104 | (sizeof (type), (base), &(cur), (cnt)); \ |
1394 | init ((base) + (ocur_), (cur) - ocur_); \ |
2105 | init ((base), ocur_, ((cur) - ocur_)); \ |
1395 | } |
2106 | } |
1396 | |
2107 | |
1397 | #if 0 |
2108 | #if 0 |
1398 | #define array_slim(type,stem) \ |
2109 | #define array_slim(type,stem) \ |
1399 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2110 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1408 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2119 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1409 | |
2120 | |
1410 | /*****************************************************************************/ |
2121 | /*****************************************************************************/ |
1411 | |
2122 | |
1412 | /* dummy callback for pending events */ |
2123 | /* dummy callback for pending events */ |
1413 | static void noinline |
2124 | ecb_noinline |
|
|
2125 | static void |
1414 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2126 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1415 | { |
2127 | { |
1416 | } |
2128 | } |
1417 | |
2129 | |
1418 | void noinline |
2130 | ecb_noinline |
|
|
2131 | void |
1419 | ev_feed_event (EV_P_ void *w, int revents) |
2132 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1420 | { |
2133 | { |
1421 | W w_ = (W)w; |
2134 | W w_ = (W)w; |
1422 | int pri = ABSPRI (w_); |
2135 | int pri = ABSPRI (w_); |
1423 | |
2136 | |
1424 | if (expect_false (w_->pending)) |
2137 | if (ecb_expect_false (w_->pending)) |
1425 | pendings [pri][w_->pending - 1].events |= revents; |
2138 | pendings [pri][w_->pending - 1].events |= revents; |
1426 | else |
2139 | else |
1427 | { |
2140 | { |
1428 | w_->pending = ++pendingcnt [pri]; |
2141 | w_->pending = ++pendingcnt [pri]; |
1429 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2142 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1430 | pendings [pri][w_->pending - 1].w = w_; |
2143 | pendings [pri][w_->pending - 1].w = w_; |
1431 | pendings [pri][w_->pending - 1].events = revents; |
2144 | pendings [pri][w_->pending - 1].events = revents; |
1432 | } |
2145 | } |
|
|
2146 | |
|
|
2147 | pendingpri = NUMPRI - 1; |
1433 | } |
2148 | } |
1434 | |
2149 | |
1435 | inline_speed void |
2150 | inline_speed void |
1436 | feed_reverse (EV_P_ W w) |
2151 | feed_reverse (EV_P_ W w) |
1437 | { |
2152 | { |
1438 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2153 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1439 | rfeeds [rfeedcnt++] = w; |
2154 | rfeeds [rfeedcnt++] = w; |
1440 | } |
2155 | } |
1441 | |
2156 | |
1442 | inline_size void |
2157 | inline_size void |
1443 | feed_reverse_done (EV_P_ int revents) |
2158 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1478 | inline_speed void |
2193 | inline_speed void |
1479 | fd_event (EV_P_ int fd, int revents) |
2194 | fd_event (EV_P_ int fd, int revents) |
1480 | { |
2195 | { |
1481 | ANFD *anfd = anfds + fd; |
2196 | ANFD *anfd = anfds + fd; |
1482 | |
2197 | |
1483 | if (expect_true (!anfd->reify)) |
2198 | if (ecb_expect_true (!anfd->reify)) |
1484 | fd_event_nocheck (EV_A_ fd, revents); |
2199 | fd_event_nocheck (EV_A_ fd, revents); |
1485 | } |
2200 | } |
1486 | |
2201 | |
1487 | void |
2202 | void |
1488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2203 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1489 | { |
2204 | { |
1490 | if (fd >= 0 && fd < anfdmax) |
2205 | if (fd >= 0 && fd < anfdmax) |
1491 | fd_event_nocheck (EV_A_ fd, revents); |
2206 | fd_event_nocheck (EV_A_ fd, revents); |
1492 | } |
2207 | } |
1493 | |
2208 | |
… | |
… | |
1530 | ev_io *w; |
2245 | ev_io *w; |
1531 | |
2246 | |
1532 | unsigned char o_events = anfd->events; |
2247 | unsigned char o_events = anfd->events; |
1533 | unsigned char o_reify = anfd->reify; |
2248 | unsigned char o_reify = anfd->reify; |
1534 | |
2249 | |
1535 | anfd->reify = 0; |
2250 | anfd->reify = 0; |
1536 | |
2251 | |
1537 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2252 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1538 | { |
2253 | { |
1539 | anfd->events = 0; |
2254 | anfd->events = 0; |
1540 | |
2255 | |
1541 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2256 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1542 | anfd->events |= (unsigned char)w->events; |
2257 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1551 | |
2266 | |
1552 | fdchangecnt = 0; |
2267 | fdchangecnt = 0; |
1553 | } |
2268 | } |
1554 | |
2269 | |
1555 | /* something about the given fd changed */ |
2270 | /* something about the given fd changed */ |
1556 | inline_size void |
2271 | inline_size |
|
|
2272 | void |
1557 | fd_change (EV_P_ int fd, int flags) |
2273 | fd_change (EV_P_ int fd, int flags) |
1558 | { |
2274 | { |
1559 | unsigned char reify = anfds [fd].reify; |
2275 | unsigned char reify = anfds [fd].reify; |
1560 | anfds [fd].reify |= flags; |
2276 | anfds [fd].reify |= flags; |
1561 | |
2277 | |
1562 | if (expect_true (!reify)) |
2278 | if (ecb_expect_true (!reify)) |
1563 | { |
2279 | { |
1564 | ++fdchangecnt; |
2280 | ++fdchangecnt; |
1565 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2281 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1566 | fdchanges [fdchangecnt - 1] = fd; |
2282 | fdchanges [fdchangecnt - 1] = fd; |
1567 | } |
2283 | } |
1568 | } |
2284 | } |
1569 | |
2285 | |
1570 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2286 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1571 | inline_speed void ecb_cold |
2287 | inline_speed ecb_cold void |
1572 | fd_kill (EV_P_ int fd) |
2288 | fd_kill (EV_P_ int fd) |
1573 | { |
2289 | { |
1574 | ev_io *w; |
2290 | ev_io *w; |
1575 | |
2291 | |
1576 | while ((w = (ev_io *)anfds [fd].head)) |
2292 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1579 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2295 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1580 | } |
2296 | } |
1581 | } |
2297 | } |
1582 | |
2298 | |
1583 | /* check whether the given fd is actually valid, for error recovery */ |
2299 | /* check whether the given fd is actually valid, for error recovery */ |
1584 | inline_size int ecb_cold |
2300 | inline_size ecb_cold int |
1585 | fd_valid (int fd) |
2301 | fd_valid (int fd) |
1586 | { |
2302 | { |
1587 | #ifdef _WIN32 |
2303 | #ifdef _WIN32 |
1588 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2304 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1589 | #else |
2305 | #else |
1590 | return fcntl (fd, F_GETFD) != -1; |
2306 | return fcntl (fd, F_GETFD) != -1; |
1591 | #endif |
2307 | #endif |
1592 | } |
2308 | } |
1593 | |
2309 | |
1594 | /* called on EBADF to verify fds */ |
2310 | /* called on EBADF to verify fds */ |
1595 | static void noinline ecb_cold |
2311 | ecb_noinline ecb_cold |
|
|
2312 | static void |
1596 | fd_ebadf (EV_P) |
2313 | fd_ebadf (EV_P) |
1597 | { |
2314 | { |
1598 | int fd; |
2315 | int fd; |
1599 | |
2316 | |
1600 | for (fd = 0; fd < anfdmax; ++fd) |
2317 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1602 | if (!fd_valid (fd) && errno == EBADF) |
2319 | if (!fd_valid (fd) && errno == EBADF) |
1603 | fd_kill (EV_A_ fd); |
2320 | fd_kill (EV_A_ fd); |
1604 | } |
2321 | } |
1605 | |
2322 | |
1606 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2323 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1607 | static void noinline ecb_cold |
2324 | ecb_noinline ecb_cold |
|
|
2325 | static void |
1608 | fd_enomem (EV_P) |
2326 | fd_enomem (EV_P) |
1609 | { |
2327 | { |
1610 | int fd; |
2328 | int fd; |
1611 | |
2329 | |
1612 | for (fd = anfdmax; fd--; ) |
2330 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1616 | break; |
2334 | break; |
1617 | } |
2335 | } |
1618 | } |
2336 | } |
1619 | |
2337 | |
1620 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2338 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1621 | static void noinline |
2339 | ecb_noinline |
|
|
2340 | static void |
1622 | fd_rearm_all (EV_P) |
2341 | fd_rearm_all (EV_P) |
1623 | { |
2342 | { |
1624 | int fd; |
2343 | int fd; |
1625 | |
2344 | |
1626 | for (fd = 0; fd < anfdmax; ++fd) |
2345 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1679 | ev_tstamp minat; |
2398 | ev_tstamp minat; |
1680 | ANHE *minpos; |
2399 | ANHE *minpos; |
1681 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2400 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1682 | |
2401 | |
1683 | /* find minimum child */ |
2402 | /* find minimum child */ |
1684 | if (expect_true (pos + DHEAP - 1 < E)) |
2403 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1685 | { |
2404 | { |
1686 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2405 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1687 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2406 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1688 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2407 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1689 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2408 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
… | |
… | |
1807 | |
2526 | |
1808 | /*****************************************************************************/ |
2527 | /*****************************************************************************/ |
1809 | |
2528 | |
1810 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2529 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1811 | |
2530 | |
1812 | static void noinline ecb_cold |
2531 | ecb_noinline ecb_cold |
|
|
2532 | static void |
1813 | evpipe_init (EV_P) |
2533 | evpipe_init (EV_P) |
1814 | { |
2534 | { |
1815 | if (!ev_is_active (&pipe_w)) |
2535 | if (!ev_is_active (&pipe_w)) |
1816 | { |
2536 | { |
|
|
2537 | int fds [2]; |
|
|
2538 | |
1817 | # if EV_USE_EVENTFD |
2539 | # if EV_USE_EVENTFD |
|
|
2540 | fds [0] = -1; |
1818 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2541 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1819 | if (evfd < 0 && errno == EINVAL) |
2542 | if (fds [1] < 0 && errno == EINVAL) |
1820 | evfd = eventfd (0, 0); |
2543 | fds [1] = eventfd (0, 0); |
1821 | |
2544 | |
1822 | if (evfd >= 0) |
2545 | if (fds [1] < 0) |
|
|
2546 | # endif |
1823 | { |
2547 | { |
|
|
2548 | while (pipe (fds)) |
|
|
2549 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2550 | |
|
|
2551 | fd_intern (fds [0]); |
|
|
2552 | } |
|
|
2553 | |
1824 | evpipe [0] = -1; |
2554 | evpipe [0] = fds [0]; |
1825 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2555 | |
1826 | ev_io_set (&pipe_w, evfd, EV_READ); |
2556 | if (evpipe [1] < 0) |
|
|
2557 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2558 | else |
|
|
2559 | { |
|
|
2560 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2561 | /* so that evpipe_write can always rely on its value. */ |
|
|
2562 | /* this branch does not do anything sensible on windows, */ |
|
|
2563 | /* so must not be executed on windows */ |
|
|
2564 | |
|
|
2565 | dup2 (fds [1], evpipe [1]); |
|
|
2566 | close (fds [1]); |
|
|
2567 | } |
|
|
2568 | |
|
|
2569 | fd_intern (evpipe [1]); |
|
|
2570 | |
|
|
2571 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2572 | ev_io_start (EV_A_ &pipe_w); |
|
|
2573 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2574 | } |
|
|
2575 | } |
|
|
2576 | |
|
|
2577 | inline_speed void |
|
|
2578 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2579 | { |
|
|
2580 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2581 | |
|
|
2582 | if (ecb_expect_true (*flag)) |
|
|
2583 | return; |
|
|
2584 | |
|
|
2585 | *flag = 1; |
|
|
2586 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2587 | |
|
|
2588 | pipe_write_skipped = 1; |
|
|
2589 | |
|
|
2590 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2591 | |
|
|
2592 | if (pipe_write_wanted) |
|
|
2593 | { |
|
|
2594 | int old_errno; |
|
|
2595 | |
|
|
2596 | pipe_write_skipped = 0; |
|
|
2597 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2598 | |
|
|
2599 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2600 | |
|
|
2601 | #if EV_USE_EVENTFD |
|
|
2602 | if (evpipe [0] < 0) |
|
|
2603 | { |
|
|
2604 | uint64_t counter = 1; |
|
|
2605 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1827 | } |
2606 | } |
1828 | else |
2607 | else |
1829 | # endif |
2608 | #endif |
1830 | { |
2609 | { |
1831 | while (pipe (evpipe)) |
2610 | #ifdef _WIN32 |
1832 | ev_syserr ("(libev) error creating signal/async pipe"); |
2611 | WSABUF buf; |
1833 | |
2612 | DWORD sent; |
1834 | fd_intern (evpipe [0]); |
2613 | buf.buf = (char *)&buf; |
1835 | fd_intern (evpipe [1]); |
2614 | buf.len = 1; |
1836 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2615 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1837 | } |
2616 | #else |
1838 | |
|
|
1839 | ev_io_start (EV_A_ &pipe_w); |
|
|
1840 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1841 | } |
|
|
1842 | } |
|
|
1843 | |
|
|
1844 | inline_speed void |
|
|
1845 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1846 | { |
|
|
1847 | if (expect_true (*flag)) |
|
|
1848 | return; |
|
|
1849 | |
|
|
1850 | *flag = 1; |
|
|
1851 | |
|
|
1852 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1853 | |
|
|
1854 | pipe_write_skipped = 1; |
|
|
1855 | |
|
|
1856 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1857 | |
|
|
1858 | if (pipe_write_wanted) |
|
|
1859 | { |
|
|
1860 | int old_errno; |
|
|
1861 | |
|
|
1862 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1863 | |
|
|
1864 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1865 | |
|
|
1866 | #if EV_USE_EVENTFD |
|
|
1867 | if (evfd >= 0) |
|
|
1868 | { |
|
|
1869 | uint64_t counter = 1; |
|
|
1870 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1871 | } |
|
|
1872 | else |
|
|
1873 | #endif |
|
|
1874 | { |
|
|
1875 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1876 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1877 | /* so when you think this write should be a send instead, please find out */ |
|
|
1878 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1879 | /* tell me. thank you. */ |
|
|
1880 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1881 | /* check the ev documentation on how to use this flag */ |
|
|
1882 | write (evpipe [1], &(evpipe [1]), 1); |
2617 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2618 | #endif |
1883 | } |
2619 | } |
1884 | |
2620 | |
1885 | errno = old_errno; |
2621 | errno = old_errno; |
1886 | } |
2622 | } |
1887 | } |
2623 | } |
… | |
… | |
1894 | int i; |
2630 | int i; |
1895 | |
2631 | |
1896 | if (revents & EV_READ) |
2632 | if (revents & EV_READ) |
1897 | { |
2633 | { |
1898 | #if EV_USE_EVENTFD |
2634 | #if EV_USE_EVENTFD |
1899 | if (evfd >= 0) |
2635 | if (evpipe [0] < 0) |
1900 | { |
2636 | { |
1901 | uint64_t counter; |
2637 | uint64_t counter; |
1902 | read (evfd, &counter, sizeof (uint64_t)); |
2638 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1903 | } |
2639 | } |
1904 | else |
2640 | else |
1905 | #endif |
2641 | #endif |
1906 | { |
2642 | { |
1907 | char dummy; |
2643 | char dummy[4]; |
1908 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2644 | #ifdef _WIN32 |
|
|
2645 | WSABUF buf; |
|
|
2646 | DWORD recvd; |
|
|
2647 | DWORD flags = 0; |
|
|
2648 | buf.buf = dummy; |
|
|
2649 | buf.len = sizeof (dummy); |
|
|
2650 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2651 | #else |
1909 | read (evpipe [0], &dummy, 1); |
2652 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2653 | #endif |
1910 | } |
2654 | } |
1911 | } |
2655 | } |
1912 | |
2656 | |
1913 | pipe_write_skipped = 0; |
2657 | pipe_write_skipped = 0; |
|
|
2658 | |
|
|
2659 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1914 | |
2660 | |
1915 | #if EV_SIGNAL_ENABLE |
2661 | #if EV_SIGNAL_ENABLE |
1916 | if (sig_pending) |
2662 | if (sig_pending) |
1917 | { |
2663 | { |
1918 | sig_pending = 0; |
2664 | sig_pending = 0; |
1919 | |
2665 | |
|
|
2666 | ECB_MEMORY_FENCE; |
|
|
2667 | |
1920 | for (i = EV_NSIG - 1; i--; ) |
2668 | for (i = EV_NSIG - 1; i--; ) |
1921 | if (expect_false (signals [i].pending)) |
2669 | if (ecb_expect_false (signals [i].pending)) |
1922 | ev_feed_signal_event (EV_A_ i + 1); |
2670 | ev_feed_signal_event (EV_A_ i + 1); |
1923 | } |
2671 | } |
1924 | #endif |
2672 | #endif |
1925 | |
2673 | |
1926 | #if EV_ASYNC_ENABLE |
2674 | #if EV_ASYNC_ENABLE |
1927 | if (async_pending) |
2675 | if (async_pending) |
1928 | { |
2676 | { |
1929 | async_pending = 0; |
2677 | async_pending = 0; |
|
|
2678 | |
|
|
2679 | ECB_MEMORY_FENCE; |
1930 | |
2680 | |
1931 | for (i = asynccnt; i--; ) |
2681 | for (i = asynccnt; i--; ) |
1932 | if (asyncs [i]->sent) |
2682 | if (asyncs [i]->sent) |
1933 | { |
2683 | { |
1934 | asyncs [i]->sent = 0; |
2684 | asyncs [i]->sent = 0; |
|
|
2685 | ECB_MEMORY_FENCE_RELEASE; |
1935 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2686 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1936 | } |
2687 | } |
1937 | } |
2688 | } |
1938 | #endif |
2689 | #endif |
1939 | } |
2690 | } |
1940 | |
2691 | |
1941 | /*****************************************************************************/ |
2692 | /*****************************************************************************/ |
1942 | |
2693 | |
1943 | void |
2694 | void |
1944 | ev_feed_signal (int signum) |
2695 | ev_feed_signal (int signum) EV_NOEXCEPT |
1945 | { |
2696 | { |
1946 | #if EV_MULTIPLICITY |
2697 | #if EV_MULTIPLICITY |
|
|
2698 | EV_P; |
|
|
2699 | ECB_MEMORY_FENCE_ACQUIRE; |
1947 | EV_P = signals [signum - 1].loop; |
2700 | EV_A = signals [signum - 1].loop; |
1948 | |
2701 | |
1949 | if (!EV_A) |
2702 | if (!EV_A) |
1950 | return; |
2703 | return; |
1951 | #endif |
2704 | #endif |
1952 | |
2705 | |
1953 | if (!ev_active (&pipe_w)) |
|
|
1954 | return; |
|
|
1955 | |
|
|
1956 | signals [signum - 1].pending = 1; |
2706 | signals [signum - 1].pending = 1; |
1957 | evpipe_write (EV_A_ &sig_pending); |
2707 | evpipe_write (EV_A_ &sig_pending); |
1958 | } |
2708 | } |
1959 | |
2709 | |
1960 | static void |
2710 | static void |
… | |
… | |
1965 | #endif |
2715 | #endif |
1966 | |
2716 | |
1967 | ev_feed_signal (signum); |
2717 | ev_feed_signal (signum); |
1968 | } |
2718 | } |
1969 | |
2719 | |
1970 | void noinline |
2720 | ecb_noinline |
|
|
2721 | void |
1971 | ev_feed_signal_event (EV_P_ int signum) |
2722 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1972 | { |
2723 | { |
1973 | WL w; |
2724 | WL w; |
1974 | |
2725 | |
1975 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2726 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1976 | return; |
2727 | return; |
1977 | |
2728 | |
1978 | --signum; |
2729 | --signum; |
1979 | |
2730 | |
1980 | #if EV_MULTIPLICITY |
2731 | #if EV_MULTIPLICITY |
1981 | /* it is permissible to try to feed a signal to the wrong loop */ |
2732 | /* it is permissible to try to feed a signal to the wrong loop */ |
1982 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2733 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1983 | |
2734 | |
1984 | if (expect_false (signals [signum].loop != EV_A)) |
2735 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1985 | return; |
2736 | return; |
1986 | #endif |
2737 | #endif |
1987 | |
2738 | |
1988 | signals [signum].pending = 0; |
2739 | signals [signum].pending = 0; |
|
|
2740 | ECB_MEMORY_FENCE_RELEASE; |
1989 | |
2741 | |
1990 | for (w = signals [signum].head; w; w = w->next) |
2742 | for (w = signals [signum].head; w; w = w->next) |
1991 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2743 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1992 | } |
2744 | } |
1993 | |
2745 | |
… | |
… | |
2084 | # include "ev_kqueue.c" |
2836 | # include "ev_kqueue.c" |
2085 | #endif |
2837 | #endif |
2086 | #if EV_USE_EPOLL |
2838 | #if EV_USE_EPOLL |
2087 | # include "ev_epoll.c" |
2839 | # include "ev_epoll.c" |
2088 | #endif |
2840 | #endif |
|
|
2841 | #if EV_USE_LINUXAIO |
|
|
2842 | # include "ev_linuxaio.c" |
|
|
2843 | #endif |
|
|
2844 | #if EV_USE_IOURING |
|
|
2845 | # include "ev_iouring.c" |
|
|
2846 | #endif |
2089 | #if EV_USE_POLL |
2847 | #if EV_USE_POLL |
2090 | # include "ev_poll.c" |
2848 | # include "ev_poll.c" |
2091 | #endif |
2849 | #endif |
2092 | #if EV_USE_SELECT |
2850 | #if EV_USE_SELECT |
2093 | # include "ev_select.c" |
2851 | # include "ev_select.c" |
2094 | #endif |
2852 | #endif |
2095 | |
2853 | |
2096 | int ecb_cold |
2854 | ecb_cold int |
2097 | ev_version_major (void) |
2855 | ev_version_major (void) EV_NOEXCEPT |
2098 | { |
2856 | { |
2099 | return EV_VERSION_MAJOR; |
2857 | return EV_VERSION_MAJOR; |
2100 | } |
2858 | } |
2101 | |
2859 | |
2102 | int ecb_cold |
2860 | ecb_cold int |
2103 | ev_version_minor (void) |
2861 | ev_version_minor (void) EV_NOEXCEPT |
2104 | { |
2862 | { |
2105 | return EV_VERSION_MINOR; |
2863 | return EV_VERSION_MINOR; |
2106 | } |
2864 | } |
2107 | |
2865 | |
2108 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2866 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2109 | int inline_size ecb_cold |
2867 | inline_size ecb_cold int |
2110 | enable_secure (void) |
2868 | enable_secure (void) |
2111 | { |
2869 | { |
2112 | #ifdef _WIN32 |
2870 | #ifdef _WIN32 |
2113 | return 0; |
2871 | return 0; |
2114 | #else |
2872 | #else |
2115 | return getuid () != geteuid () |
2873 | return getuid () != geteuid () |
2116 | || getgid () != getegid (); |
2874 | || getgid () != getegid (); |
2117 | #endif |
2875 | #endif |
2118 | } |
2876 | } |
2119 | |
2877 | |
2120 | unsigned int ecb_cold |
2878 | ecb_cold |
|
|
2879 | unsigned int |
2121 | ev_supported_backends (void) |
2880 | ev_supported_backends (void) EV_NOEXCEPT |
2122 | { |
2881 | { |
2123 | unsigned int flags = 0; |
2882 | unsigned int flags = 0; |
2124 | |
2883 | |
2125 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2884 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2126 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2885 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2127 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2886 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2887 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2888 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
2128 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2889 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2129 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2890 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2130 | |
2891 | |
2131 | return flags; |
2892 | return flags; |
2132 | } |
2893 | } |
2133 | |
2894 | |
2134 | unsigned int ecb_cold |
2895 | ecb_cold |
|
|
2896 | unsigned int |
2135 | ev_recommended_backends (void) |
2897 | ev_recommended_backends (void) EV_NOEXCEPT |
2136 | { |
2898 | { |
2137 | unsigned int flags = ev_supported_backends (); |
2899 | unsigned int flags = ev_supported_backends (); |
2138 | |
2900 | |
2139 | #ifndef __NetBSD__ |
2901 | #ifndef __NetBSD__ |
2140 | /* kqueue is borked on everything but netbsd apparently */ |
2902 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2148 | #endif |
2910 | #endif |
2149 | #ifdef __FreeBSD__ |
2911 | #ifdef __FreeBSD__ |
2150 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2912 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2151 | #endif |
2913 | #endif |
2152 | |
2914 | |
|
|
2915 | /* TODO: linuxaio is very experimental */ |
|
|
2916 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2917 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2918 | #endif |
|
|
2919 | /* TODO: linuxaio is super experimental */ |
|
|
2920 | #if !EV_RECOMMEND_IOURING |
|
|
2921 | flags &= ~EVBACKEND_IOURING; |
|
|
2922 | #endif |
|
|
2923 | |
2153 | return flags; |
2924 | return flags; |
2154 | } |
2925 | } |
2155 | |
2926 | |
2156 | unsigned int ecb_cold |
2927 | ecb_cold |
|
|
2928 | unsigned int |
2157 | ev_embeddable_backends (void) |
2929 | ev_embeddable_backends (void) EV_NOEXCEPT |
2158 | { |
2930 | { |
2159 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2931 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2160 | |
2932 | |
2161 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2933 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2162 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2934 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2163 | flags &= ~EVBACKEND_EPOLL; |
2935 | flags &= ~EVBACKEND_EPOLL; |
2164 | |
2936 | |
|
|
2937 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2938 | |
|
|
2939 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2940 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2941 | * if the kernel ever is fixed, this might change... |
|
|
2942 | */ |
|
|
2943 | |
2165 | return flags; |
2944 | return flags; |
2166 | } |
2945 | } |
2167 | |
2946 | |
2168 | unsigned int |
2947 | unsigned int |
2169 | ev_backend (EV_P) |
2948 | ev_backend (EV_P) EV_NOEXCEPT |
2170 | { |
2949 | { |
2171 | return backend; |
2950 | return backend; |
2172 | } |
2951 | } |
2173 | |
2952 | |
2174 | #if EV_FEATURE_API |
2953 | #if EV_FEATURE_API |
2175 | unsigned int |
2954 | unsigned int |
2176 | ev_iteration (EV_P) |
2955 | ev_iteration (EV_P) EV_NOEXCEPT |
2177 | { |
2956 | { |
2178 | return loop_count; |
2957 | return loop_count; |
2179 | } |
2958 | } |
2180 | |
2959 | |
2181 | unsigned int |
2960 | unsigned int |
2182 | ev_depth (EV_P) |
2961 | ev_depth (EV_P) EV_NOEXCEPT |
2183 | { |
2962 | { |
2184 | return loop_depth; |
2963 | return loop_depth; |
2185 | } |
2964 | } |
2186 | |
2965 | |
2187 | void |
2966 | void |
2188 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2967 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2189 | { |
2968 | { |
2190 | io_blocktime = interval; |
2969 | io_blocktime = interval; |
2191 | } |
2970 | } |
2192 | |
2971 | |
2193 | void |
2972 | void |
2194 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2973 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2195 | { |
2974 | { |
2196 | timeout_blocktime = interval; |
2975 | timeout_blocktime = interval; |
2197 | } |
2976 | } |
2198 | |
2977 | |
2199 | void |
2978 | void |
2200 | ev_set_userdata (EV_P_ void *data) |
2979 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2201 | { |
2980 | { |
2202 | userdata = data; |
2981 | userdata = data; |
2203 | } |
2982 | } |
2204 | |
2983 | |
2205 | void * |
2984 | void * |
2206 | ev_userdata (EV_P) |
2985 | ev_userdata (EV_P) EV_NOEXCEPT |
2207 | { |
2986 | { |
2208 | return userdata; |
2987 | return userdata; |
2209 | } |
2988 | } |
2210 | |
2989 | |
2211 | void |
2990 | void |
2212 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2991 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2213 | { |
2992 | { |
2214 | invoke_cb = invoke_pending_cb; |
2993 | invoke_cb = invoke_pending_cb; |
2215 | } |
2994 | } |
2216 | |
2995 | |
2217 | void |
2996 | void |
2218 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2997 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2219 | { |
2998 | { |
2220 | release_cb = release; |
2999 | release_cb = release; |
2221 | acquire_cb = acquire; |
3000 | acquire_cb = acquire; |
2222 | } |
3001 | } |
2223 | #endif |
3002 | #endif |
2224 | |
3003 | |
2225 | /* initialise a loop structure, must be zero-initialised */ |
3004 | /* initialise a loop structure, must be zero-initialised */ |
2226 | static void noinline ecb_cold |
3005 | ecb_noinline ecb_cold |
|
|
3006 | static void |
2227 | loop_init (EV_P_ unsigned int flags) |
3007 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2228 | { |
3008 | { |
2229 | if (!backend) |
3009 | if (!backend) |
2230 | { |
3010 | { |
2231 | origflags = flags; |
3011 | origflags = flags; |
2232 | |
3012 | |
… | |
… | |
2277 | #if EV_ASYNC_ENABLE |
3057 | #if EV_ASYNC_ENABLE |
2278 | async_pending = 0; |
3058 | async_pending = 0; |
2279 | #endif |
3059 | #endif |
2280 | pipe_write_skipped = 0; |
3060 | pipe_write_skipped = 0; |
2281 | pipe_write_wanted = 0; |
3061 | pipe_write_wanted = 0; |
|
|
3062 | evpipe [0] = -1; |
|
|
3063 | evpipe [1] = -1; |
2282 | #if EV_USE_INOTIFY |
3064 | #if EV_USE_INOTIFY |
2283 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3065 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2284 | #endif |
3066 | #endif |
2285 | #if EV_USE_SIGNALFD |
3067 | #if EV_USE_SIGNALFD |
2286 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3068 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2288 | |
3070 | |
2289 | if (!(flags & EVBACKEND_MASK)) |
3071 | if (!(flags & EVBACKEND_MASK)) |
2290 | flags |= ev_recommended_backends (); |
3072 | flags |= ev_recommended_backends (); |
2291 | |
3073 | |
2292 | #if EV_USE_IOCP |
3074 | #if EV_USE_IOCP |
2293 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3075 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2294 | #endif |
3076 | #endif |
2295 | #if EV_USE_PORT |
3077 | #if EV_USE_PORT |
2296 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3078 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2297 | #endif |
3079 | #endif |
2298 | #if EV_USE_KQUEUE |
3080 | #if EV_USE_KQUEUE |
2299 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3081 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3082 | #endif |
|
|
3083 | #if EV_USE_IOURING |
|
|
3084 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3085 | #endif |
|
|
3086 | #if EV_USE_LINUXAIO |
|
|
3087 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2300 | #endif |
3088 | #endif |
2301 | #if EV_USE_EPOLL |
3089 | #if EV_USE_EPOLL |
2302 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3090 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2303 | #endif |
3091 | #endif |
2304 | #if EV_USE_POLL |
3092 | #if EV_USE_POLL |
2305 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3093 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2306 | #endif |
3094 | #endif |
2307 | #if EV_USE_SELECT |
3095 | #if EV_USE_SELECT |
2308 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3096 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2309 | #endif |
3097 | #endif |
2310 | |
3098 | |
2311 | ev_prepare_init (&pending_w, pendingcb); |
3099 | ev_prepare_init (&pending_w, pendingcb); |
2312 | |
3100 | |
2313 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3101 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2316 | #endif |
3104 | #endif |
2317 | } |
3105 | } |
2318 | } |
3106 | } |
2319 | |
3107 | |
2320 | /* free up a loop structure */ |
3108 | /* free up a loop structure */ |
2321 | void ecb_cold |
3109 | ecb_cold |
|
|
3110 | void |
2322 | ev_loop_destroy (EV_P) |
3111 | ev_loop_destroy (EV_P) |
2323 | { |
3112 | { |
2324 | int i; |
3113 | int i; |
2325 | |
3114 | |
2326 | #if EV_MULTIPLICITY |
3115 | #if EV_MULTIPLICITY |
… | |
… | |
2329 | return; |
3118 | return; |
2330 | #endif |
3119 | #endif |
2331 | |
3120 | |
2332 | #if EV_CLEANUP_ENABLE |
3121 | #if EV_CLEANUP_ENABLE |
2333 | /* queue cleanup watchers (and execute them) */ |
3122 | /* queue cleanup watchers (and execute them) */ |
2334 | if (expect_false (cleanupcnt)) |
3123 | if (ecb_expect_false (cleanupcnt)) |
2335 | { |
3124 | { |
2336 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3125 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2337 | EV_INVOKE_PENDING; |
3126 | EV_INVOKE_PENDING; |
2338 | } |
3127 | } |
2339 | #endif |
3128 | #endif |
2340 | |
3129 | |
2341 | #if EV_CHILD_ENABLE |
3130 | #if EV_CHILD_ENABLE |
2342 | if (ev_is_active (&childev)) |
3131 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2343 | { |
3132 | { |
2344 | ev_ref (EV_A); /* child watcher */ |
3133 | ev_ref (EV_A); /* child watcher */ |
2345 | ev_signal_stop (EV_A_ &childev); |
3134 | ev_signal_stop (EV_A_ &childev); |
2346 | } |
3135 | } |
2347 | #endif |
3136 | #endif |
… | |
… | |
2349 | if (ev_is_active (&pipe_w)) |
3138 | if (ev_is_active (&pipe_w)) |
2350 | { |
3139 | { |
2351 | /*ev_ref (EV_A);*/ |
3140 | /*ev_ref (EV_A);*/ |
2352 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3141 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2353 | |
3142 | |
2354 | #if EV_USE_EVENTFD |
|
|
2355 | if (evfd >= 0) |
|
|
2356 | close (evfd); |
|
|
2357 | #endif |
|
|
2358 | |
|
|
2359 | if (evpipe [0] >= 0) |
|
|
2360 | { |
|
|
2361 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3143 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2362 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3144 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2363 | } |
|
|
2364 | } |
3145 | } |
2365 | |
3146 | |
2366 | #if EV_USE_SIGNALFD |
3147 | #if EV_USE_SIGNALFD |
2367 | if (ev_is_active (&sigfd_w)) |
3148 | if (ev_is_active (&sigfd_w)) |
2368 | close (sigfd); |
3149 | close (sigfd); |
… | |
… | |
2375 | |
3156 | |
2376 | if (backend_fd >= 0) |
3157 | if (backend_fd >= 0) |
2377 | close (backend_fd); |
3158 | close (backend_fd); |
2378 | |
3159 | |
2379 | #if EV_USE_IOCP |
3160 | #if EV_USE_IOCP |
2380 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3161 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2381 | #endif |
3162 | #endif |
2382 | #if EV_USE_PORT |
3163 | #if EV_USE_PORT |
2383 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3164 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2384 | #endif |
3165 | #endif |
2385 | #if EV_USE_KQUEUE |
3166 | #if EV_USE_KQUEUE |
2386 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3167 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3168 | #endif |
|
|
3169 | #if EV_USE_IOURING |
|
|
3170 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3171 | #endif |
|
|
3172 | #if EV_USE_LINUXAIO |
|
|
3173 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2387 | #endif |
3174 | #endif |
2388 | #if EV_USE_EPOLL |
3175 | #if EV_USE_EPOLL |
2389 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3176 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2390 | #endif |
3177 | #endif |
2391 | #if EV_USE_POLL |
3178 | #if EV_USE_POLL |
2392 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3179 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2393 | #endif |
3180 | #endif |
2394 | #if EV_USE_SELECT |
3181 | #if EV_USE_SELECT |
2395 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3182 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2396 | #endif |
3183 | #endif |
2397 | |
3184 | |
2398 | for (i = NUMPRI; i--; ) |
3185 | for (i = NUMPRI; i--; ) |
2399 | { |
3186 | { |
2400 | array_free (pending, [i]); |
3187 | array_free (pending, [i]); |
… | |
… | |
2442 | |
3229 | |
2443 | inline_size void |
3230 | inline_size void |
2444 | loop_fork (EV_P) |
3231 | loop_fork (EV_P) |
2445 | { |
3232 | { |
2446 | #if EV_USE_PORT |
3233 | #if EV_USE_PORT |
2447 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3234 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2448 | #endif |
3235 | #endif |
2449 | #if EV_USE_KQUEUE |
3236 | #if EV_USE_KQUEUE |
2450 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3237 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3238 | #endif |
|
|
3239 | #if EV_USE_IOURING |
|
|
3240 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3241 | #endif |
|
|
3242 | #if EV_USE_LINUXAIO |
|
|
3243 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2451 | #endif |
3244 | #endif |
2452 | #if EV_USE_EPOLL |
3245 | #if EV_USE_EPOLL |
2453 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3246 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2454 | #endif |
3247 | #endif |
2455 | #if EV_USE_INOTIFY |
3248 | #if EV_USE_INOTIFY |
2456 | infy_fork (EV_A); |
3249 | infy_fork (EV_A); |
2457 | #endif |
3250 | #endif |
2458 | |
3251 | |
|
|
3252 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2459 | if (ev_is_active (&pipe_w)) |
3253 | if (ev_is_active (&pipe_w) && postfork != 2) |
2460 | { |
3254 | { |
2461 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3255 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2462 | |
3256 | |
2463 | ev_ref (EV_A); |
3257 | ev_ref (EV_A); |
2464 | ev_io_stop (EV_A_ &pipe_w); |
3258 | ev_io_stop (EV_A_ &pipe_w); |
2465 | |
3259 | |
2466 | #if EV_USE_EVENTFD |
|
|
2467 | if (evfd >= 0) |
|
|
2468 | close (evfd); |
|
|
2469 | #endif |
|
|
2470 | |
|
|
2471 | if (evpipe [0] >= 0) |
3260 | if (evpipe [0] >= 0) |
2472 | { |
|
|
2473 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3261 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2474 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2475 | } |
|
|
2476 | |
3262 | |
2477 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2478 | evpipe_init (EV_A); |
3263 | evpipe_init (EV_A); |
2479 | /* now iterate over everything, in case we missed something */ |
3264 | /* iterate over everything, in case we missed something before */ |
2480 | pipecb (EV_A_ &pipe_w, EV_READ); |
3265 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2481 | #endif |
|
|
2482 | } |
3266 | } |
|
|
3267 | #endif |
2483 | |
3268 | |
2484 | postfork = 0; |
3269 | postfork = 0; |
2485 | } |
3270 | } |
2486 | |
3271 | |
2487 | #if EV_MULTIPLICITY |
3272 | #if EV_MULTIPLICITY |
2488 | |
3273 | |
|
|
3274 | ecb_cold |
2489 | struct ev_loop * ecb_cold |
3275 | struct ev_loop * |
2490 | ev_loop_new (unsigned int flags) |
3276 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2491 | { |
3277 | { |
2492 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3278 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2493 | |
3279 | |
2494 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3280 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2495 | loop_init (EV_A_ flags); |
3281 | loop_init (EV_A_ flags); |
… | |
… | |
2502 | } |
3288 | } |
2503 | |
3289 | |
2504 | #endif /* multiplicity */ |
3290 | #endif /* multiplicity */ |
2505 | |
3291 | |
2506 | #if EV_VERIFY |
3292 | #if EV_VERIFY |
2507 | static void noinline ecb_cold |
3293 | ecb_noinline ecb_cold |
|
|
3294 | static void |
2508 | verify_watcher (EV_P_ W w) |
3295 | verify_watcher (EV_P_ W w) |
2509 | { |
3296 | { |
2510 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3297 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2511 | |
3298 | |
2512 | if (w->pending) |
3299 | if (w->pending) |
2513 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3300 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2514 | } |
3301 | } |
2515 | |
3302 | |
2516 | static void noinline ecb_cold |
3303 | ecb_noinline ecb_cold |
|
|
3304 | static void |
2517 | verify_heap (EV_P_ ANHE *heap, int N) |
3305 | verify_heap (EV_P_ ANHE *heap, int N) |
2518 | { |
3306 | { |
2519 | int i; |
3307 | int i; |
2520 | |
3308 | |
2521 | for (i = HEAP0; i < N + HEAP0; ++i) |
3309 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2526 | |
3314 | |
2527 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3315 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2528 | } |
3316 | } |
2529 | } |
3317 | } |
2530 | |
3318 | |
2531 | static void noinline ecb_cold |
3319 | ecb_noinline ecb_cold |
|
|
3320 | static void |
2532 | array_verify (EV_P_ W *ws, int cnt) |
3321 | array_verify (EV_P_ W *ws, int cnt) |
2533 | { |
3322 | { |
2534 | while (cnt--) |
3323 | while (cnt--) |
2535 | { |
3324 | { |
2536 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3325 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2539 | } |
3328 | } |
2540 | #endif |
3329 | #endif |
2541 | |
3330 | |
2542 | #if EV_FEATURE_API |
3331 | #if EV_FEATURE_API |
2543 | void ecb_cold |
3332 | void ecb_cold |
2544 | ev_verify (EV_P) |
3333 | ev_verify (EV_P) EV_NOEXCEPT |
2545 | { |
3334 | { |
2546 | #if EV_VERIFY |
3335 | #if EV_VERIFY |
2547 | int i; |
3336 | int i; |
2548 | WL w; |
3337 | WL w, w2; |
2549 | |
3338 | |
2550 | assert (activecnt >= -1); |
3339 | assert (activecnt >= -1); |
2551 | |
3340 | |
2552 | assert (fdchangemax >= fdchangecnt); |
3341 | assert (fdchangemax >= fdchangecnt); |
2553 | for (i = 0; i < fdchangecnt; ++i) |
3342 | for (i = 0; i < fdchangecnt; ++i) |
2554 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3343 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2555 | |
3344 | |
2556 | assert (anfdmax >= 0); |
3345 | assert (anfdmax >= 0); |
2557 | for (i = 0; i < anfdmax; ++i) |
3346 | for (i = 0; i < anfdmax; ++i) |
|
|
3347 | { |
|
|
3348 | int j = 0; |
|
|
3349 | |
2558 | for (w = anfds [i].head; w; w = w->next) |
3350 | for (w = w2 = anfds [i].head; w; w = w->next) |
2559 | { |
3351 | { |
2560 | verify_watcher (EV_A_ (W)w); |
3352 | verify_watcher (EV_A_ (W)w); |
|
|
3353 | |
|
|
3354 | if (j++ & 1) |
|
|
3355 | { |
|
|
3356 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3357 | w2 = w2->next; |
|
|
3358 | } |
|
|
3359 | |
2561 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3360 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2562 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3361 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2563 | } |
3362 | } |
|
|
3363 | } |
2564 | |
3364 | |
2565 | assert (timermax >= timercnt); |
3365 | assert (timermax >= timercnt); |
2566 | verify_heap (EV_A_ timers, timercnt); |
3366 | verify_heap (EV_A_ timers, timercnt); |
2567 | |
3367 | |
2568 | #if EV_PERIODIC_ENABLE |
3368 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2614 | #endif |
3414 | #endif |
2615 | } |
3415 | } |
2616 | #endif |
3416 | #endif |
2617 | |
3417 | |
2618 | #if EV_MULTIPLICITY |
3418 | #if EV_MULTIPLICITY |
|
|
3419 | ecb_cold |
2619 | struct ev_loop * ecb_cold |
3420 | struct ev_loop * |
2620 | #else |
3421 | #else |
2621 | int |
3422 | int |
2622 | #endif |
3423 | #endif |
2623 | ev_default_loop (unsigned int flags) |
3424 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2624 | { |
3425 | { |
2625 | if (!ev_default_loop_ptr) |
3426 | if (!ev_default_loop_ptr) |
2626 | { |
3427 | { |
2627 | #if EV_MULTIPLICITY |
3428 | #if EV_MULTIPLICITY |
2628 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3429 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2647 | |
3448 | |
2648 | return ev_default_loop_ptr; |
3449 | return ev_default_loop_ptr; |
2649 | } |
3450 | } |
2650 | |
3451 | |
2651 | void |
3452 | void |
2652 | ev_loop_fork (EV_P) |
3453 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2653 | { |
3454 | { |
2654 | postfork = 1; /* must be in line with ev_default_fork */ |
3455 | postfork = 1; |
2655 | } |
3456 | } |
2656 | |
3457 | |
2657 | /*****************************************************************************/ |
3458 | /*****************************************************************************/ |
2658 | |
3459 | |
2659 | void |
3460 | void |
… | |
… | |
2661 | { |
3462 | { |
2662 | EV_CB_INVOKE ((W)w, revents); |
3463 | EV_CB_INVOKE ((W)w, revents); |
2663 | } |
3464 | } |
2664 | |
3465 | |
2665 | unsigned int |
3466 | unsigned int |
2666 | ev_pending_count (EV_P) |
3467 | ev_pending_count (EV_P) EV_NOEXCEPT |
2667 | { |
3468 | { |
2668 | int pri; |
3469 | int pri; |
2669 | unsigned int count = 0; |
3470 | unsigned int count = 0; |
2670 | |
3471 | |
2671 | for (pri = NUMPRI; pri--; ) |
3472 | for (pri = NUMPRI; pri--; ) |
2672 | count += pendingcnt [pri]; |
3473 | count += pendingcnt [pri]; |
2673 | |
3474 | |
2674 | return count; |
3475 | return count; |
2675 | } |
3476 | } |
2676 | |
3477 | |
2677 | void noinline |
3478 | ecb_noinline |
|
|
3479 | void |
2678 | ev_invoke_pending (EV_P) |
3480 | ev_invoke_pending (EV_P) |
2679 | { |
3481 | { |
2680 | int pri; |
3482 | pendingpri = NUMPRI; |
2681 | |
3483 | |
2682 | for (pri = NUMPRI; pri--; ) |
3484 | do |
|
|
3485 | { |
|
|
3486 | --pendingpri; |
|
|
3487 | |
|
|
3488 | /* pendingpri possibly gets modified in the inner loop */ |
2683 | while (pendingcnt [pri]) |
3489 | while (pendingcnt [pendingpri]) |
2684 | { |
3490 | { |
2685 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3491 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2686 | |
3492 | |
2687 | p->w->pending = 0; |
3493 | p->w->pending = 0; |
2688 | EV_CB_INVOKE (p->w, p->events); |
3494 | EV_CB_INVOKE (p->w, p->events); |
2689 | EV_FREQUENT_CHECK; |
3495 | EV_FREQUENT_CHECK; |
2690 | } |
3496 | } |
|
|
3497 | } |
|
|
3498 | while (pendingpri); |
2691 | } |
3499 | } |
2692 | |
3500 | |
2693 | #if EV_IDLE_ENABLE |
3501 | #if EV_IDLE_ENABLE |
2694 | /* make idle watchers pending. this handles the "call-idle */ |
3502 | /* make idle watchers pending. this handles the "call-idle */ |
2695 | /* only when higher priorities are idle" logic */ |
3503 | /* only when higher priorities are idle" logic */ |
2696 | inline_size void |
3504 | inline_size void |
2697 | idle_reify (EV_P) |
3505 | idle_reify (EV_P) |
2698 | { |
3506 | { |
2699 | if (expect_false (idleall)) |
3507 | if (ecb_expect_false (idleall)) |
2700 | { |
3508 | { |
2701 | int pri; |
3509 | int pri; |
2702 | |
3510 | |
2703 | for (pri = NUMPRI; pri--; ) |
3511 | for (pri = NUMPRI; pri--; ) |
2704 | { |
3512 | { |
… | |
… | |
2753 | } |
3561 | } |
2754 | } |
3562 | } |
2755 | |
3563 | |
2756 | #if EV_PERIODIC_ENABLE |
3564 | #if EV_PERIODIC_ENABLE |
2757 | |
3565 | |
2758 | static void noinline |
3566 | ecb_noinline |
|
|
3567 | static void |
2759 | periodic_recalc (EV_P_ ev_periodic *w) |
3568 | periodic_recalc (EV_P_ ev_periodic *w) |
2760 | { |
3569 | { |
2761 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3570 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2762 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3571 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2763 | |
3572 | |
… | |
… | |
2765 | while (at <= ev_rt_now) |
3574 | while (at <= ev_rt_now) |
2766 | { |
3575 | { |
2767 | ev_tstamp nat = at + w->interval; |
3576 | ev_tstamp nat = at + w->interval; |
2768 | |
3577 | |
2769 | /* when resolution fails us, we use ev_rt_now */ |
3578 | /* when resolution fails us, we use ev_rt_now */ |
2770 | if (expect_false (nat == at)) |
3579 | if (ecb_expect_false (nat == at)) |
2771 | { |
3580 | { |
2772 | at = ev_rt_now; |
3581 | at = ev_rt_now; |
2773 | break; |
3582 | break; |
2774 | } |
3583 | } |
2775 | |
3584 | |
… | |
… | |
2785 | { |
3594 | { |
2786 | EV_FREQUENT_CHECK; |
3595 | EV_FREQUENT_CHECK; |
2787 | |
3596 | |
2788 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3597 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2789 | { |
3598 | { |
2790 | int feed_count = 0; |
|
|
2791 | |
|
|
2792 | do |
3599 | do |
2793 | { |
3600 | { |
2794 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3601 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2795 | |
3602 | |
2796 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3603 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2823 | } |
3630 | } |
2824 | } |
3631 | } |
2825 | |
3632 | |
2826 | /* simply recalculate all periodics */ |
3633 | /* simply recalculate all periodics */ |
2827 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3634 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2828 | static void noinline ecb_cold |
3635 | ecb_noinline ecb_cold |
|
|
3636 | static void |
2829 | periodics_reschedule (EV_P) |
3637 | periodics_reschedule (EV_P) |
2830 | { |
3638 | { |
2831 | int i; |
3639 | int i; |
2832 | |
3640 | |
2833 | /* adjust periodics after time jump */ |
3641 | /* adjust periodics after time jump */ |
… | |
… | |
2846 | reheap (periodics, periodiccnt); |
3654 | reheap (periodics, periodiccnt); |
2847 | } |
3655 | } |
2848 | #endif |
3656 | #endif |
2849 | |
3657 | |
2850 | /* adjust all timers by a given offset */ |
3658 | /* adjust all timers by a given offset */ |
2851 | static void noinline ecb_cold |
3659 | ecb_noinline ecb_cold |
|
|
3660 | static void |
2852 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3661 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2853 | { |
3662 | { |
2854 | int i; |
3663 | int i; |
2855 | |
3664 | |
2856 | for (i = 0; i < timercnt; ++i) |
3665 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2865 | /* also detect if there was a timejump, and act accordingly */ |
3674 | /* also detect if there was a timejump, and act accordingly */ |
2866 | inline_speed void |
3675 | inline_speed void |
2867 | time_update (EV_P_ ev_tstamp max_block) |
3676 | time_update (EV_P_ ev_tstamp max_block) |
2868 | { |
3677 | { |
2869 | #if EV_USE_MONOTONIC |
3678 | #if EV_USE_MONOTONIC |
2870 | if (expect_true (have_monotonic)) |
3679 | if (ecb_expect_true (have_monotonic)) |
2871 | { |
3680 | { |
2872 | int i; |
3681 | int i; |
2873 | ev_tstamp odiff = rtmn_diff; |
3682 | ev_tstamp odiff = rtmn_diff; |
2874 | |
3683 | |
2875 | mn_now = get_clock (); |
3684 | mn_now = get_clock (); |
2876 | |
3685 | |
2877 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3686 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2878 | /* interpolate in the meantime */ |
3687 | /* interpolate in the meantime */ |
2879 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3688 | if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2880 | { |
3689 | { |
2881 | ev_rt_now = rtmn_diff + mn_now; |
3690 | ev_rt_now = rtmn_diff + mn_now; |
2882 | return; |
3691 | return; |
2883 | } |
3692 | } |
2884 | |
3693 | |
… | |
… | |
2898 | ev_tstamp diff; |
3707 | ev_tstamp diff; |
2899 | rtmn_diff = ev_rt_now - mn_now; |
3708 | rtmn_diff = ev_rt_now - mn_now; |
2900 | |
3709 | |
2901 | diff = odiff - rtmn_diff; |
3710 | diff = odiff - rtmn_diff; |
2902 | |
3711 | |
2903 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3712 | if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2904 | return; /* all is well */ |
3713 | return; /* all is well */ |
2905 | |
3714 | |
2906 | ev_rt_now = ev_time (); |
3715 | ev_rt_now = ev_time (); |
2907 | mn_now = get_clock (); |
3716 | mn_now = get_clock (); |
2908 | now_floor = mn_now; |
3717 | now_floor = mn_now; |
… | |
… | |
2917 | else |
3726 | else |
2918 | #endif |
3727 | #endif |
2919 | { |
3728 | { |
2920 | ev_rt_now = ev_time (); |
3729 | ev_rt_now = ev_time (); |
2921 | |
3730 | |
2922 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3731 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2923 | { |
3732 | { |
2924 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3733 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2925 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3734 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2926 | #if EV_PERIODIC_ENABLE |
3735 | #if EV_PERIODIC_ENABLE |
2927 | periodics_reschedule (EV_A); |
3736 | periodics_reschedule (EV_A); |
… | |
… | |
2930 | |
3739 | |
2931 | mn_now = ev_rt_now; |
3740 | mn_now = ev_rt_now; |
2932 | } |
3741 | } |
2933 | } |
3742 | } |
2934 | |
3743 | |
2935 | void |
3744 | int |
2936 | ev_run (EV_P_ int flags) |
3745 | ev_run (EV_P_ int flags) |
2937 | { |
3746 | { |
2938 | #if EV_FEATURE_API |
3747 | #if EV_FEATURE_API |
2939 | ++loop_depth; |
3748 | ++loop_depth; |
2940 | #endif |
3749 | #endif |
… | |
… | |
2950 | #if EV_VERIFY >= 2 |
3759 | #if EV_VERIFY >= 2 |
2951 | ev_verify (EV_A); |
3760 | ev_verify (EV_A); |
2952 | #endif |
3761 | #endif |
2953 | |
3762 | |
2954 | #ifndef _WIN32 |
3763 | #ifndef _WIN32 |
2955 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3764 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2956 | if (expect_false (getpid () != curpid)) |
3765 | if (ecb_expect_false (getpid () != curpid)) |
2957 | { |
3766 | { |
2958 | curpid = getpid (); |
3767 | curpid = getpid (); |
2959 | postfork = 1; |
3768 | postfork = 1; |
2960 | } |
3769 | } |
2961 | #endif |
3770 | #endif |
2962 | |
3771 | |
2963 | #if EV_FORK_ENABLE |
3772 | #if EV_FORK_ENABLE |
2964 | /* we might have forked, so queue fork handlers */ |
3773 | /* we might have forked, so queue fork handlers */ |
2965 | if (expect_false (postfork)) |
3774 | if (ecb_expect_false (postfork)) |
2966 | if (forkcnt) |
3775 | if (forkcnt) |
2967 | { |
3776 | { |
2968 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3777 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2969 | EV_INVOKE_PENDING; |
3778 | EV_INVOKE_PENDING; |
2970 | } |
3779 | } |
2971 | #endif |
3780 | #endif |
2972 | |
3781 | |
2973 | #if EV_PREPARE_ENABLE |
3782 | #if EV_PREPARE_ENABLE |
2974 | /* queue prepare watchers (and execute them) */ |
3783 | /* queue prepare watchers (and execute them) */ |
2975 | if (expect_false (preparecnt)) |
3784 | if (ecb_expect_false (preparecnt)) |
2976 | { |
3785 | { |
2977 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3786 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2978 | EV_INVOKE_PENDING; |
3787 | EV_INVOKE_PENDING; |
2979 | } |
3788 | } |
2980 | #endif |
3789 | #endif |
2981 | |
3790 | |
2982 | if (expect_false (loop_done)) |
3791 | if (ecb_expect_false (loop_done)) |
2983 | break; |
3792 | break; |
2984 | |
3793 | |
2985 | /* we might have forked, so reify kernel state if necessary */ |
3794 | /* we might have forked, so reify kernel state if necessary */ |
2986 | if (expect_false (postfork)) |
3795 | if (ecb_expect_false (postfork)) |
2987 | loop_fork (EV_A); |
3796 | loop_fork (EV_A); |
2988 | |
3797 | |
2989 | /* update fd-related kernel structures */ |
3798 | /* update fd-related kernel structures */ |
2990 | fd_reify (EV_A); |
3799 | fd_reify (EV_A); |
2991 | |
3800 | |
… | |
… | |
3003 | /* from now on, we want a pipe-wake-up */ |
3812 | /* from now on, we want a pipe-wake-up */ |
3004 | pipe_write_wanted = 1; |
3813 | pipe_write_wanted = 1; |
3005 | |
3814 | |
3006 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3815 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3007 | |
3816 | |
3008 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3817 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3009 | { |
3818 | { |
3010 | waittime = MAX_BLOCKTIME; |
3819 | waittime = MAX_BLOCKTIME; |
3011 | |
3820 | |
3012 | if (timercnt) |
3821 | if (timercnt) |
3013 | { |
3822 | { |
… | |
… | |
3022 | if (waittime > to) waittime = to; |
3831 | if (waittime > to) waittime = to; |
3023 | } |
3832 | } |
3024 | #endif |
3833 | #endif |
3025 | |
3834 | |
3026 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3835 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3027 | if (expect_false (waittime < timeout_blocktime)) |
3836 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3028 | waittime = timeout_blocktime; |
3837 | waittime = timeout_blocktime; |
3029 | |
3838 | |
3030 | /* at this point, we NEED to wait, so we have to ensure */ |
3839 | /* at this point, we NEED to wait, so we have to ensure */ |
3031 | /* to pass a minimum nonzero value to the backend */ |
3840 | /* to pass a minimum nonzero value to the backend */ |
3032 | if (expect_false (waittime < backend_mintime)) |
3841 | if (ecb_expect_false (waittime < backend_mintime)) |
3033 | waittime = backend_mintime; |
3842 | waittime = backend_mintime; |
3034 | |
3843 | |
3035 | /* extra check because io_blocktime is commonly 0 */ |
3844 | /* extra check because io_blocktime is commonly 0 */ |
3036 | if (expect_false (io_blocktime)) |
3845 | if (ecb_expect_false (io_blocktime)) |
3037 | { |
3846 | { |
3038 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3847 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3039 | |
3848 | |
3040 | if (sleeptime > waittime - backend_mintime) |
3849 | if (sleeptime > waittime - backend_mintime) |
3041 | sleeptime = waittime - backend_mintime; |
3850 | sleeptime = waittime - backend_mintime; |
3042 | |
3851 | |
3043 | if (expect_true (sleeptime > 0.)) |
3852 | if (ecb_expect_true (sleeptime > 0.)) |
3044 | { |
3853 | { |
3045 | ev_sleep (sleeptime); |
3854 | ev_sleep (sleeptime); |
3046 | waittime -= sleeptime; |
3855 | waittime -= sleeptime; |
3047 | } |
3856 | } |
3048 | } |
3857 | } |
… | |
… | |
3055 | backend_poll (EV_A_ waittime); |
3864 | backend_poll (EV_A_ waittime); |
3056 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3865 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3057 | |
3866 | |
3058 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3867 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3059 | |
3868 | |
|
|
3869 | ECB_MEMORY_FENCE_ACQUIRE; |
3060 | if (pipe_write_skipped) |
3870 | if (pipe_write_skipped) |
3061 | { |
3871 | { |
3062 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3872 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3063 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3873 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3064 | } |
3874 | } |
3065 | |
3875 | |
3066 | |
|
|
3067 | /* update ev_rt_now, do magic */ |
3876 | /* update ev_rt_now, do magic */ |
3068 | time_update (EV_A_ waittime + sleeptime); |
3877 | time_update (EV_A_ waittime + sleeptime); |
3069 | } |
3878 | } |
3070 | |
3879 | |
3071 | /* queue pending timers and reschedule them */ |
3880 | /* queue pending timers and reschedule them */ |
… | |
… | |
3079 | idle_reify (EV_A); |
3888 | idle_reify (EV_A); |
3080 | #endif |
3889 | #endif |
3081 | |
3890 | |
3082 | #if EV_CHECK_ENABLE |
3891 | #if EV_CHECK_ENABLE |
3083 | /* queue check watchers, to be executed first */ |
3892 | /* queue check watchers, to be executed first */ |
3084 | if (expect_false (checkcnt)) |
3893 | if (ecb_expect_false (checkcnt)) |
3085 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3894 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3086 | #endif |
3895 | #endif |
3087 | |
3896 | |
3088 | EV_INVOKE_PENDING; |
3897 | EV_INVOKE_PENDING; |
3089 | } |
3898 | } |
3090 | while (expect_true ( |
3899 | while (ecb_expect_true ( |
3091 | activecnt |
3900 | activecnt |
3092 | && !loop_done |
3901 | && !loop_done |
3093 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3902 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3094 | )); |
3903 | )); |
3095 | |
3904 | |
… | |
… | |
3097 | loop_done = EVBREAK_CANCEL; |
3906 | loop_done = EVBREAK_CANCEL; |
3098 | |
3907 | |
3099 | #if EV_FEATURE_API |
3908 | #if EV_FEATURE_API |
3100 | --loop_depth; |
3909 | --loop_depth; |
3101 | #endif |
3910 | #endif |
3102 | } |
|
|
3103 | |
3911 | |
|
|
3912 | return activecnt; |
|
|
3913 | } |
|
|
3914 | |
3104 | void |
3915 | void |
3105 | ev_break (EV_P_ int how) |
3916 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3106 | { |
3917 | { |
3107 | loop_done = how; |
3918 | loop_done = how; |
3108 | } |
3919 | } |
3109 | |
3920 | |
3110 | void |
3921 | void |
3111 | ev_ref (EV_P) |
3922 | ev_ref (EV_P) EV_NOEXCEPT |
3112 | { |
3923 | { |
3113 | ++activecnt; |
3924 | ++activecnt; |
3114 | } |
3925 | } |
3115 | |
3926 | |
3116 | void |
3927 | void |
3117 | ev_unref (EV_P) |
3928 | ev_unref (EV_P) EV_NOEXCEPT |
3118 | { |
3929 | { |
3119 | --activecnt; |
3930 | --activecnt; |
3120 | } |
3931 | } |
3121 | |
3932 | |
3122 | void |
3933 | void |
3123 | ev_now_update (EV_P) |
3934 | ev_now_update (EV_P) EV_NOEXCEPT |
3124 | { |
3935 | { |
3125 | time_update (EV_A_ 1e100); |
3936 | time_update (EV_A_ 1e100); |
3126 | } |
3937 | } |
3127 | |
3938 | |
3128 | void |
3939 | void |
3129 | ev_suspend (EV_P) |
3940 | ev_suspend (EV_P) EV_NOEXCEPT |
3130 | { |
3941 | { |
3131 | ev_now_update (EV_A); |
3942 | ev_now_update (EV_A); |
3132 | } |
3943 | } |
3133 | |
3944 | |
3134 | void |
3945 | void |
3135 | ev_resume (EV_P) |
3946 | ev_resume (EV_P) EV_NOEXCEPT |
3136 | { |
3947 | { |
3137 | ev_tstamp mn_prev = mn_now; |
3948 | ev_tstamp mn_prev = mn_now; |
3138 | |
3949 | |
3139 | ev_now_update (EV_A); |
3950 | ev_now_update (EV_A); |
3140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3951 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3157 | inline_size void |
3968 | inline_size void |
3158 | wlist_del (WL *head, WL elem) |
3969 | wlist_del (WL *head, WL elem) |
3159 | { |
3970 | { |
3160 | while (*head) |
3971 | while (*head) |
3161 | { |
3972 | { |
3162 | if (expect_true (*head == elem)) |
3973 | if (ecb_expect_true (*head == elem)) |
3163 | { |
3974 | { |
3164 | *head = elem->next; |
3975 | *head = elem->next; |
3165 | break; |
3976 | break; |
3166 | } |
3977 | } |
3167 | |
3978 | |
… | |
… | |
3179 | w->pending = 0; |
3990 | w->pending = 0; |
3180 | } |
3991 | } |
3181 | } |
3992 | } |
3182 | |
3993 | |
3183 | int |
3994 | int |
3184 | ev_clear_pending (EV_P_ void *w) |
3995 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3185 | { |
3996 | { |
3186 | W w_ = (W)w; |
3997 | W w_ = (W)w; |
3187 | int pending = w_->pending; |
3998 | int pending = w_->pending; |
3188 | |
3999 | |
3189 | if (expect_true (pending)) |
4000 | if (ecb_expect_true (pending)) |
3190 | { |
4001 | { |
3191 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4002 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3192 | p->w = (W)&pending_w; |
4003 | p->w = (W)&pending_w; |
3193 | w_->pending = 0; |
4004 | w_->pending = 0; |
3194 | return p->events; |
4005 | return p->events; |
… | |
… | |
3221 | w->active = 0; |
4032 | w->active = 0; |
3222 | } |
4033 | } |
3223 | |
4034 | |
3224 | /*****************************************************************************/ |
4035 | /*****************************************************************************/ |
3225 | |
4036 | |
3226 | void noinline |
4037 | ecb_noinline |
|
|
4038 | void |
3227 | ev_io_start (EV_P_ ev_io *w) |
4039 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3228 | { |
4040 | { |
3229 | int fd = w->fd; |
4041 | int fd = w->fd; |
3230 | |
4042 | |
3231 | if (expect_false (ev_is_active (w))) |
4043 | if (ecb_expect_false (ev_is_active (w))) |
3232 | return; |
4044 | return; |
3233 | |
4045 | |
3234 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4046 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3235 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4047 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3236 | |
4048 | |
|
|
4049 | #if EV_VERIFY >= 2 |
|
|
4050 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4051 | #endif |
3237 | EV_FREQUENT_CHECK; |
4052 | EV_FREQUENT_CHECK; |
3238 | |
4053 | |
3239 | ev_start (EV_A_ (W)w, 1); |
4054 | ev_start (EV_A_ (W)w, 1); |
3240 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4055 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3241 | wlist_add (&anfds[fd].head, (WL)w); |
4056 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4057 | |
|
|
4058 | /* common bug, apparently */ |
|
|
4059 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3242 | |
4060 | |
3243 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4061 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3244 | w->events &= ~EV__IOFDSET; |
4062 | w->events &= ~EV__IOFDSET; |
3245 | |
4063 | |
3246 | EV_FREQUENT_CHECK; |
4064 | EV_FREQUENT_CHECK; |
3247 | } |
4065 | } |
3248 | |
4066 | |
3249 | void noinline |
4067 | ecb_noinline |
|
|
4068 | void |
3250 | ev_io_stop (EV_P_ ev_io *w) |
4069 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3251 | { |
4070 | { |
3252 | clear_pending (EV_A_ (W)w); |
4071 | clear_pending (EV_A_ (W)w); |
3253 | if (expect_false (!ev_is_active (w))) |
4072 | if (ecb_expect_false (!ev_is_active (w))) |
3254 | return; |
4073 | return; |
3255 | |
4074 | |
3256 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4075 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3257 | |
4076 | |
|
|
4077 | #if EV_VERIFY >= 2 |
|
|
4078 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4079 | #endif |
3258 | EV_FREQUENT_CHECK; |
4080 | EV_FREQUENT_CHECK; |
3259 | |
4081 | |
3260 | wlist_del (&anfds[w->fd].head, (WL)w); |
4082 | wlist_del (&anfds[w->fd].head, (WL)w); |
3261 | ev_stop (EV_A_ (W)w); |
4083 | ev_stop (EV_A_ (W)w); |
3262 | |
4084 | |
3263 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4085 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3264 | |
4086 | |
3265 | EV_FREQUENT_CHECK; |
4087 | EV_FREQUENT_CHECK; |
3266 | } |
4088 | } |
3267 | |
4089 | |
3268 | void noinline |
4090 | ecb_noinline |
|
|
4091 | void |
3269 | ev_timer_start (EV_P_ ev_timer *w) |
4092 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3270 | { |
4093 | { |
3271 | if (expect_false (ev_is_active (w))) |
4094 | if (ecb_expect_false (ev_is_active (w))) |
3272 | return; |
4095 | return; |
3273 | |
4096 | |
3274 | ev_at (w) += mn_now; |
4097 | ev_at (w) += mn_now; |
3275 | |
4098 | |
3276 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4099 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3277 | |
4100 | |
3278 | EV_FREQUENT_CHECK; |
4101 | EV_FREQUENT_CHECK; |
3279 | |
4102 | |
3280 | ++timercnt; |
4103 | ++timercnt; |
3281 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4104 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3282 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4105 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3283 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4106 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3284 | ANHE_at_cache (timers [ev_active (w)]); |
4107 | ANHE_at_cache (timers [ev_active (w)]); |
3285 | upheap (timers, ev_active (w)); |
4108 | upheap (timers, ev_active (w)); |
3286 | |
4109 | |
3287 | EV_FREQUENT_CHECK; |
4110 | EV_FREQUENT_CHECK; |
3288 | |
4111 | |
3289 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4112 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3290 | } |
4113 | } |
3291 | |
4114 | |
3292 | void noinline |
4115 | ecb_noinline |
|
|
4116 | void |
3293 | ev_timer_stop (EV_P_ ev_timer *w) |
4117 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3294 | { |
4118 | { |
3295 | clear_pending (EV_A_ (W)w); |
4119 | clear_pending (EV_A_ (W)w); |
3296 | if (expect_false (!ev_is_active (w))) |
4120 | if (ecb_expect_false (!ev_is_active (w))) |
3297 | return; |
4121 | return; |
3298 | |
4122 | |
3299 | EV_FREQUENT_CHECK; |
4123 | EV_FREQUENT_CHECK; |
3300 | |
4124 | |
3301 | { |
4125 | { |
… | |
… | |
3303 | |
4127 | |
3304 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4128 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3305 | |
4129 | |
3306 | --timercnt; |
4130 | --timercnt; |
3307 | |
4131 | |
3308 | if (expect_true (active < timercnt + HEAP0)) |
4132 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3309 | { |
4133 | { |
3310 | timers [active] = timers [timercnt + HEAP0]; |
4134 | timers [active] = timers [timercnt + HEAP0]; |
3311 | adjustheap (timers, timercnt, active); |
4135 | adjustheap (timers, timercnt, active); |
3312 | } |
4136 | } |
3313 | } |
4137 | } |
… | |
… | |
3317 | ev_stop (EV_A_ (W)w); |
4141 | ev_stop (EV_A_ (W)w); |
3318 | |
4142 | |
3319 | EV_FREQUENT_CHECK; |
4143 | EV_FREQUENT_CHECK; |
3320 | } |
4144 | } |
3321 | |
4145 | |
3322 | void noinline |
4146 | ecb_noinline |
|
|
4147 | void |
3323 | ev_timer_again (EV_P_ ev_timer *w) |
4148 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3324 | { |
4149 | { |
3325 | EV_FREQUENT_CHECK; |
4150 | EV_FREQUENT_CHECK; |
3326 | |
4151 | |
3327 | clear_pending (EV_A_ (W)w); |
4152 | clear_pending (EV_A_ (W)w); |
3328 | |
4153 | |
… | |
… | |
3345 | |
4170 | |
3346 | EV_FREQUENT_CHECK; |
4171 | EV_FREQUENT_CHECK; |
3347 | } |
4172 | } |
3348 | |
4173 | |
3349 | ev_tstamp |
4174 | ev_tstamp |
3350 | ev_timer_remaining (EV_P_ ev_timer *w) |
4175 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3351 | { |
4176 | { |
3352 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4177 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3353 | } |
4178 | } |
3354 | |
4179 | |
3355 | #if EV_PERIODIC_ENABLE |
4180 | #if EV_PERIODIC_ENABLE |
3356 | void noinline |
4181 | ecb_noinline |
|
|
4182 | void |
3357 | ev_periodic_start (EV_P_ ev_periodic *w) |
4183 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3358 | { |
4184 | { |
3359 | if (expect_false (ev_is_active (w))) |
4185 | if (ecb_expect_false (ev_is_active (w))) |
3360 | return; |
4186 | return; |
3361 | |
4187 | |
3362 | if (w->reschedule_cb) |
4188 | if (w->reschedule_cb) |
3363 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4189 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3364 | else if (w->interval) |
4190 | else if (w->interval) |
… | |
… | |
3371 | |
4197 | |
3372 | EV_FREQUENT_CHECK; |
4198 | EV_FREQUENT_CHECK; |
3373 | |
4199 | |
3374 | ++periodiccnt; |
4200 | ++periodiccnt; |
3375 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4201 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3376 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4202 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3377 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4203 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3378 | ANHE_at_cache (periodics [ev_active (w)]); |
4204 | ANHE_at_cache (periodics [ev_active (w)]); |
3379 | upheap (periodics, ev_active (w)); |
4205 | upheap (periodics, ev_active (w)); |
3380 | |
4206 | |
3381 | EV_FREQUENT_CHECK; |
4207 | EV_FREQUENT_CHECK; |
3382 | |
4208 | |
3383 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4209 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3384 | } |
4210 | } |
3385 | |
4211 | |
3386 | void noinline |
4212 | ecb_noinline |
|
|
4213 | void |
3387 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4214 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3388 | { |
4215 | { |
3389 | clear_pending (EV_A_ (W)w); |
4216 | clear_pending (EV_A_ (W)w); |
3390 | if (expect_false (!ev_is_active (w))) |
4217 | if (ecb_expect_false (!ev_is_active (w))) |
3391 | return; |
4218 | return; |
3392 | |
4219 | |
3393 | EV_FREQUENT_CHECK; |
4220 | EV_FREQUENT_CHECK; |
3394 | |
4221 | |
3395 | { |
4222 | { |
… | |
… | |
3397 | |
4224 | |
3398 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4225 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3399 | |
4226 | |
3400 | --periodiccnt; |
4227 | --periodiccnt; |
3401 | |
4228 | |
3402 | if (expect_true (active < periodiccnt + HEAP0)) |
4229 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3403 | { |
4230 | { |
3404 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4231 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3405 | adjustheap (periodics, periodiccnt, active); |
4232 | adjustheap (periodics, periodiccnt, active); |
3406 | } |
4233 | } |
3407 | } |
4234 | } |
… | |
… | |
3409 | ev_stop (EV_A_ (W)w); |
4236 | ev_stop (EV_A_ (W)w); |
3410 | |
4237 | |
3411 | EV_FREQUENT_CHECK; |
4238 | EV_FREQUENT_CHECK; |
3412 | } |
4239 | } |
3413 | |
4240 | |
3414 | void noinline |
4241 | ecb_noinline |
|
|
4242 | void |
3415 | ev_periodic_again (EV_P_ ev_periodic *w) |
4243 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3416 | { |
4244 | { |
3417 | /* TODO: use adjustheap and recalculation */ |
4245 | /* TODO: use adjustheap and recalculation */ |
3418 | ev_periodic_stop (EV_A_ w); |
4246 | ev_periodic_stop (EV_A_ w); |
3419 | ev_periodic_start (EV_A_ w); |
4247 | ev_periodic_start (EV_A_ w); |
3420 | } |
4248 | } |
… | |
… | |
3424 | # define SA_RESTART 0 |
4252 | # define SA_RESTART 0 |
3425 | #endif |
4253 | #endif |
3426 | |
4254 | |
3427 | #if EV_SIGNAL_ENABLE |
4255 | #if EV_SIGNAL_ENABLE |
3428 | |
4256 | |
3429 | void noinline |
4257 | ecb_noinline |
|
|
4258 | void |
3430 | ev_signal_start (EV_P_ ev_signal *w) |
4259 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3431 | { |
4260 | { |
3432 | if (expect_false (ev_is_active (w))) |
4261 | if (ecb_expect_false (ev_is_active (w))) |
3433 | return; |
4262 | return; |
3434 | |
4263 | |
3435 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4264 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3436 | |
4265 | |
3437 | #if EV_MULTIPLICITY |
4266 | #if EV_MULTIPLICITY |
3438 | assert (("libev: a signal must not be attached to two different loops", |
4267 | assert (("libev: a signal must not be attached to two different loops", |
3439 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4268 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3440 | |
4269 | |
3441 | signals [w->signum - 1].loop = EV_A; |
4270 | signals [w->signum - 1].loop = EV_A; |
|
|
4271 | ECB_MEMORY_FENCE_RELEASE; |
3442 | #endif |
4272 | #endif |
3443 | |
4273 | |
3444 | EV_FREQUENT_CHECK; |
4274 | EV_FREQUENT_CHECK; |
3445 | |
4275 | |
3446 | #if EV_USE_SIGNALFD |
4276 | #if EV_USE_SIGNALFD |
… | |
… | |
3505 | } |
4335 | } |
3506 | |
4336 | |
3507 | EV_FREQUENT_CHECK; |
4337 | EV_FREQUENT_CHECK; |
3508 | } |
4338 | } |
3509 | |
4339 | |
3510 | void noinline |
4340 | ecb_noinline |
|
|
4341 | void |
3511 | ev_signal_stop (EV_P_ ev_signal *w) |
4342 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3512 | { |
4343 | { |
3513 | clear_pending (EV_A_ (W)w); |
4344 | clear_pending (EV_A_ (W)w); |
3514 | if (expect_false (!ev_is_active (w))) |
4345 | if (ecb_expect_false (!ev_is_active (w))) |
3515 | return; |
4346 | return; |
3516 | |
4347 | |
3517 | EV_FREQUENT_CHECK; |
4348 | EV_FREQUENT_CHECK; |
3518 | |
4349 | |
3519 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4350 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3547 | #endif |
4378 | #endif |
3548 | |
4379 | |
3549 | #if EV_CHILD_ENABLE |
4380 | #if EV_CHILD_ENABLE |
3550 | |
4381 | |
3551 | void |
4382 | void |
3552 | ev_child_start (EV_P_ ev_child *w) |
4383 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3553 | { |
4384 | { |
3554 | #if EV_MULTIPLICITY |
4385 | #if EV_MULTIPLICITY |
3555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4386 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3556 | #endif |
4387 | #endif |
3557 | if (expect_false (ev_is_active (w))) |
4388 | if (ecb_expect_false (ev_is_active (w))) |
3558 | return; |
4389 | return; |
3559 | |
4390 | |
3560 | EV_FREQUENT_CHECK; |
4391 | EV_FREQUENT_CHECK; |
3561 | |
4392 | |
3562 | ev_start (EV_A_ (W)w, 1); |
4393 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3564 | |
4395 | |
3565 | EV_FREQUENT_CHECK; |
4396 | EV_FREQUENT_CHECK; |
3566 | } |
4397 | } |
3567 | |
4398 | |
3568 | void |
4399 | void |
3569 | ev_child_stop (EV_P_ ev_child *w) |
4400 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3570 | { |
4401 | { |
3571 | clear_pending (EV_A_ (W)w); |
4402 | clear_pending (EV_A_ (W)w); |
3572 | if (expect_false (!ev_is_active (w))) |
4403 | if (ecb_expect_false (!ev_is_active (w))) |
3573 | return; |
4404 | return; |
3574 | |
4405 | |
3575 | EV_FREQUENT_CHECK; |
4406 | EV_FREQUENT_CHECK; |
3576 | |
4407 | |
3577 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4408 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3591 | |
4422 | |
3592 | #define DEF_STAT_INTERVAL 5.0074891 |
4423 | #define DEF_STAT_INTERVAL 5.0074891 |
3593 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4424 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3594 | #define MIN_STAT_INTERVAL 0.1074891 |
4425 | #define MIN_STAT_INTERVAL 0.1074891 |
3595 | |
4426 | |
3596 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4427 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3597 | |
4428 | |
3598 | #if EV_USE_INOTIFY |
4429 | #if EV_USE_INOTIFY |
3599 | |
4430 | |
3600 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4431 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3601 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4432 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3602 | |
4433 | |
3603 | static void noinline |
4434 | ecb_noinline |
|
|
4435 | static void |
3604 | infy_add (EV_P_ ev_stat *w) |
4436 | infy_add (EV_P_ ev_stat *w) |
3605 | { |
4437 | { |
3606 | 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); |
4438 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4439 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4440 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4441 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3607 | |
4442 | |
3608 | if (w->wd >= 0) |
4443 | if (w->wd >= 0) |
3609 | { |
4444 | { |
3610 | struct statfs sfs; |
4445 | struct statfs sfs; |
3611 | |
4446 | |
… | |
… | |
3615 | |
4450 | |
3616 | if (!fs_2625) |
4451 | if (!fs_2625) |
3617 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4452 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3618 | else if (!statfs (w->path, &sfs) |
4453 | else if (!statfs (w->path, &sfs) |
3619 | && (sfs.f_type == 0x1373 /* devfs */ |
4454 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4455 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4456 | || sfs.f_type == 0x4d44 /* msdos */ |
3620 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4457 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4458 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4459 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4460 | || sfs.f_type == 0x5346544e /* ntfs */ |
3621 | || sfs.f_type == 0x3153464a /* jfs */ |
4461 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4462 | || sfs.f_type == 0x9123683e /* btrfs */ |
3622 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4463 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3623 | || sfs.f_type == 0x01021994 /* tempfs */ |
4464 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3624 | || sfs.f_type == 0x58465342 /* xfs */)) |
4465 | || sfs.f_type == 0x58465342 /* xfs */)) |
3625 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4466 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3626 | else |
4467 | else |
3627 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4468 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3628 | } |
4469 | } |
… | |
… | |
3663 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4504 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3664 | ev_timer_again (EV_A_ &w->timer); |
4505 | ev_timer_again (EV_A_ &w->timer); |
3665 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4506 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3666 | } |
4507 | } |
3667 | |
4508 | |
3668 | static void noinline |
4509 | ecb_noinline |
|
|
4510 | static void |
3669 | infy_del (EV_P_ ev_stat *w) |
4511 | infy_del (EV_P_ ev_stat *w) |
3670 | { |
4512 | { |
3671 | int slot; |
4513 | int slot; |
3672 | int wd = w->wd; |
4514 | int wd = w->wd; |
3673 | |
4515 | |
… | |
… | |
3680 | |
4522 | |
3681 | /* remove this watcher, if others are watching it, they will rearm */ |
4523 | /* remove this watcher, if others are watching it, they will rearm */ |
3682 | inotify_rm_watch (fs_fd, wd); |
4524 | inotify_rm_watch (fs_fd, wd); |
3683 | } |
4525 | } |
3684 | |
4526 | |
3685 | static void noinline |
4527 | ecb_noinline |
|
|
4528 | static void |
3686 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4529 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3687 | { |
4530 | { |
3688 | if (slot < 0) |
4531 | if (slot < 0) |
3689 | /* overflow, need to check for all hash slots */ |
4532 | /* overflow, need to check for all hash slots */ |
3690 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4533 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3726 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4569 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3727 | ofs += sizeof (struct inotify_event) + ev->len; |
4570 | ofs += sizeof (struct inotify_event) + ev->len; |
3728 | } |
4571 | } |
3729 | } |
4572 | } |
3730 | |
4573 | |
3731 | inline_size void ecb_cold |
4574 | inline_size ecb_cold |
|
|
4575 | void |
3732 | ev_check_2625 (EV_P) |
4576 | ev_check_2625 (EV_P) |
3733 | { |
4577 | { |
3734 | /* kernels < 2.6.25 are borked |
4578 | /* kernels < 2.6.25 are borked |
3735 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4579 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3736 | */ |
4580 | */ |
… | |
… | |
3741 | } |
4585 | } |
3742 | |
4586 | |
3743 | inline_size int |
4587 | inline_size int |
3744 | infy_newfd (void) |
4588 | infy_newfd (void) |
3745 | { |
4589 | { |
3746 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4590 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3747 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4591 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3748 | if (fd >= 0) |
4592 | if (fd >= 0) |
3749 | return fd; |
4593 | return fd; |
3750 | #endif |
4594 | #endif |
3751 | return inotify_init (); |
4595 | return inotify_init (); |
… | |
… | |
3826 | #else |
4670 | #else |
3827 | # define EV_LSTAT(p,b) lstat (p, b) |
4671 | # define EV_LSTAT(p,b) lstat (p, b) |
3828 | #endif |
4672 | #endif |
3829 | |
4673 | |
3830 | void |
4674 | void |
3831 | ev_stat_stat (EV_P_ ev_stat *w) |
4675 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3832 | { |
4676 | { |
3833 | if (lstat (w->path, &w->attr) < 0) |
4677 | if (lstat (w->path, &w->attr) < 0) |
3834 | w->attr.st_nlink = 0; |
4678 | w->attr.st_nlink = 0; |
3835 | else if (!w->attr.st_nlink) |
4679 | else if (!w->attr.st_nlink) |
3836 | w->attr.st_nlink = 1; |
4680 | w->attr.st_nlink = 1; |
3837 | } |
4681 | } |
3838 | |
4682 | |
3839 | static void noinline |
4683 | ecb_noinline |
|
|
4684 | static void |
3840 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4685 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3841 | { |
4686 | { |
3842 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4687 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3843 | |
4688 | |
3844 | ev_statdata prev = w->attr; |
4689 | ev_statdata prev = w->attr; |
… | |
… | |
3875 | ev_feed_event (EV_A_ w, EV_STAT); |
4720 | ev_feed_event (EV_A_ w, EV_STAT); |
3876 | } |
4721 | } |
3877 | } |
4722 | } |
3878 | |
4723 | |
3879 | void |
4724 | void |
3880 | ev_stat_start (EV_P_ ev_stat *w) |
4725 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3881 | { |
4726 | { |
3882 | if (expect_false (ev_is_active (w))) |
4727 | if (ecb_expect_false (ev_is_active (w))) |
3883 | return; |
4728 | return; |
3884 | |
4729 | |
3885 | ev_stat_stat (EV_A_ w); |
4730 | ev_stat_stat (EV_A_ w); |
3886 | |
4731 | |
3887 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4732 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3906 | |
4751 | |
3907 | EV_FREQUENT_CHECK; |
4752 | EV_FREQUENT_CHECK; |
3908 | } |
4753 | } |
3909 | |
4754 | |
3910 | void |
4755 | void |
3911 | ev_stat_stop (EV_P_ ev_stat *w) |
4756 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3912 | { |
4757 | { |
3913 | clear_pending (EV_A_ (W)w); |
4758 | clear_pending (EV_A_ (W)w); |
3914 | if (expect_false (!ev_is_active (w))) |
4759 | if (ecb_expect_false (!ev_is_active (w))) |
3915 | return; |
4760 | return; |
3916 | |
4761 | |
3917 | EV_FREQUENT_CHECK; |
4762 | EV_FREQUENT_CHECK; |
3918 | |
4763 | |
3919 | #if EV_USE_INOTIFY |
4764 | #if EV_USE_INOTIFY |
… | |
… | |
3932 | } |
4777 | } |
3933 | #endif |
4778 | #endif |
3934 | |
4779 | |
3935 | #if EV_IDLE_ENABLE |
4780 | #if EV_IDLE_ENABLE |
3936 | void |
4781 | void |
3937 | ev_idle_start (EV_P_ ev_idle *w) |
4782 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3938 | { |
4783 | { |
3939 | if (expect_false (ev_is_active (w))) |
4784 | if (ecb_expect_false (ev_is_active (w))) |
3940 | return; |
4785 | return; |
3941 | |
4786 | |
3942 | pri_adjust (EV_A_ (W)w); |
4787 | pri_adjust (EV_A_ (W)w); |
3943 | |
4788 | |
3944 | EV_FREQUENT_CHECK; |
4789 | EV_FREQUENT_CHECK; |
… | |
… | |
3947 | int active = ++idlecnt [ABSPRI (w)]; |
4792 | int active = ++idlecnt [ABSPRI (w)]; |
3948 | |
4793 | |
3949 | ++idleall; |
4794 | ++idleall; |
3950 | ev_start (EV_A_ (W)w, active); |
4795 | ev_start (EV_A_ (W)w, active); |
3951 | |
4796 | |
3952 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4797 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3953 | idles [ABSPRI (w)][active - 1] = w; |
4798 | idles [ABSPRI (w)][active - 1] = w; |
3954 | } |
4799 | } |
3955 | |
4800 | |
3956 | EV_FREQUENT_CHECK; |
4801 | EV_FREQUENT_CHECK; |
3957 | } |
4802 | } |
3958 | |
4803 | |
3959 | void |
4804 | void |
3960 | ev_idle_stop (EV_P_ ev_idle *w) |
4805 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3961 | { |
4806 | { |
3962 | clear_pending (EV_A_ (W)w); |
4807 | clear_pending (EV_A_ (W)w); |
3963 | if (expect_false (!ev_is_active (w))) |
4808 | if (ecb_expect_false (!ev_is_active (w))) |
3964 | return; |
4809 | return; |
3965 | |
4810 | |
3966 | EV_FREQUENT_CHECK; |
4811 | EV_FREQUENT_CHECK; |
3967 | |
4812 | |
3968 | { |
4813 | { |
… | |
… | |
3979 | } |
4824 | } |
3980 | #endif |
4825 | #endif |
3981 | |
4826 | |
3982 | #if EV_PREPARE_ENABLE |
4827 | #if EV_PREPARE_ENABLE |
3983 | void |
4828 | void |
3984 | ev_prepare_start (EV_P_ ev_prepare *w) |
4829 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3985 | { |
4830 | { |
3986 | if (expect_false (ev_is_active (w))) |
4831 | if (ecb_expect_false (ev_is_active (w))) |
3987 | return; |
4832 | return; |
3988 | |
4833 | |
3989 | EV_FREQUENT_CHECK; |
4834 | EV_FREQUENT_CHECK; |
3990 | |
4835 | |
3991 | ev_start (EV_A_ (W)w, ++preparecnt); |
4836 | ev_start (EV_A_ (W)w, ++preparecnt); |
3992 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4837 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3993 | prepares [preparecnt - 1] = w; |
4838 | prepares [preparecnt - 1] = w; |
3994 | |
4839 | |
3995 | EV_FREQUENT_CHECK; |
4840 | EV_FREQUENT_CHECK; |
3996 | } |
4841 | } |
3997 | |
4842 | |
3998 | void |
4843 | void |
3999 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4844 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4000 | { |
4845 | { |
4001 | clear_pending (EV_A_ (W)w); |
4846 | clear_pending (EV_A_ (W)w); |
4002 | if (expect_false (!ev_is_active (w))) |
4847 | if (ecb_expect_false (!ev_is_active (w))) |
4003 | return; |
4848 | return; |
4004 | |
4849 | |
4005 | EV_FREQUENT_CHECK; |
4850 | EV_FREQUENT_CHECK; |
4006 | |
4851 | |
4007 | { |
4852 | { |
… | |
… | |
4017 | } |
4862 | } |
4018 | #endif |
4863 | #endif |
4019 | |
4864 | |
4020 | #if EV_CHECK_ENABLE |
4865 | #if EV_CHECK_ENABLE |
4021 | void |
4866 | void |
4022 | ev_check_start (EV_P_ ev_check *w) |
4867 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4023 | { |
4868 | { |
4024 | if (expect_false (ev_is_active (w))) |
4869 | if (ecb_expect_false (ev_is_active (w))) |
4025 | return; |
4870 | return; |
4026 | |
4871 | |
4027 | EV_FREQUENT_CHECK; |
4872 | EV_FREQUENT_CHECK; |
4028 | |
4873 | |
4029 | ev_start (EV_A_ (W)w, ++checkcnt); |
4874 | ev_start (EV_A_ (W)w, ++checkcnt); |
4030 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4875 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4031 | checks [checkcnt - 1] = w; |
4876 | checks [checkcnt - 1] = w; |
4032 | |
4877 | |
4033 | EV_FREQUENT_CHECK; |
4878 | EV_FREQUENT_CHECK; |
4034 | } |
4879 | } |
4035 | |
4880 | |
4036 | void |
4881 | void |
4037 | ev_check_stop (EV_P_ ev_check *w) |
4882 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4038 | { |
4883 | { |
4039 | clear_pending (EV_A_ (W)w); |
4884 | clear_pending (EV_A_ (W)w); |
4040 | if (expect_false (!ev_is_active (w))) |
4885 | if (ecb_expect_false (!ev_is_active (w))) |
4041 | return; |
4886 | return; |
4042 | |
4887 | |
4043 | EV_FREQUENT_CHECK; |
4888 | EV_FREQUENT_CHECK; |
4044 | |
4889 | |
4045 | { |
4890 | { |
… | |
… | |
4054 | EV_FREQUENT_CHECK; |
4899 | EV_FREQUENT_CHECK; |
4055 | } |
4900 | } |
4056 | #endif |
4901 | #endif |
4057 | |
4902 | |
4058 | #if EV_EMBED_ENABLE |
4903 | #if EV_EMBED_ENABLE |
4059 | void noinline |
4904 | ecb_noinline |
|
|
4905 | void |
4060 | ev_embed_sweep (EV_P_ ev_embed *w) |
4906 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4061 | { |
4907 | { |
4062 | ev_run (w->other, EVRUN_NOWAIT); |
4908 | ev_run (w->other, EVRUN_NOWAIT); |
4063 | } |
4909 | } |
4064 | |
4910 | |
4065 | static void |
4911 | static void |
… | |
… | |
4113 | ev_idle_stop (EV_A_ idle); |
4959 | ev_idle_stop (EV_A_ idle); |
4114 | } |
4960 | } |
4115 | #endif |
4961 | #endif |
4116 | |
4962 | |
4117 | void |
4963 | void |
4118 | ev_embed_start (EV_P_ ev_embed *w) |
4964 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4119 | { |
4965 | { |
4120 | if (expect_false (ev_is_active (w))) |
4966 | if (ecb_expect_false (ev_is_active (w))) |
4121 | return; |
4967 | return; |
4122 | |
4968 | |
4123 | { |
4969 | { |
4124 | EV_P = w->other; |
4970 | EV_P = w->other; |
4125 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4971 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4144 | |
4990 | |
4145 | EV_FREQUENT_CHECK; |
4991 | EV_FREQUENT_CHECK; |
4146 | } |
4992 | } |
4147 | |
4993 | |
4148 | void |
4994 | void |
4149 | ev_embed_stop (EV_P_ ev_embed *w) |
4995 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4150 | { |
4996 | { |
4151 | clear_pending (EV_A_ (W)w); |
4997 | clear_pending (EV_A_ (W)w); |
4152 | if (expect_false (!ev_is_active (w))) |
4998 | if (ecb_expect_false (!ev_is_active (w))) |
4153 | return; |
4999 | return; |
4154 | |
5000 | |
4155 | EV_FREQUENT_CHECK; |
5001 | EV_FREQUENT_CHECK; |
4156 | |
5002 | |
4157 | ev_io_stop (EV_A_ &w->io); |
5003 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
4164 | } |
5010 | } |
4165 | #endif |
5011 | #endif |
4166 | |
5012 | |
4167 | #if EV_FORK_ENABLE |
5013 | #if EV_FORK_ENABLE |
4168 | void |
5014 | void |
4169 | ev_fork_start (EV_P_ ev_fork *w) |
5015 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4170 | { |
5016 | { |
4171 | if (expect_false (ev_is_active (w))) |
5017 | if (ecb_expect_false (ev_is_active (w))) |
4172 | return; |
5018 | return; |
4173 | |
5019 | |
4174 | EV_FREQUENT_CHECK; |
5020 | EV_FREQUENT_CHECK; |
4175 | |
5021 | |
4176 | ev_start (EV_A_ (W)w, ++forkcnt); |
5022 | ev_start (EV_A_ (W)w, ++forkcnt); |
4177 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5023 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4178 | forks [forkcnt - 1] = w; |
5024 | forks [forkcnt - 1] = w; |
4179 | |
5025 | |
4180 | EV_FREQUENT_CHECK; |
5026 | EV_FREQUENT_CHECK; |
4181 | } |
5027 | } |
4182 | |
5028 | |
4183 | void |
5029 | void |
4184 | ev_fork_stop (EV_P_ ev_fork *w) |
5030 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4185 | { |
5031 | { |
4186 | clear_pending (EV_A_ (W)w); |
5032 | clear_pending (EV_A_ (W)w); |
4187 | if (expect_false (!ev_is_active (w))) |
5033 | if (ecb_expect_false (!ev_is_active (w))) |
4188 | return; |
5034 | return; |
4189 | |
5035 | |
4190 | EV_FREQUENT_CHECK; |
5036 | EV_FREQUENT_CHECK; |
4191 | |
5037 | |
4192 | { |
5038 | { |
… | |
… | |
4202 | } |
5048 | } |
4203 | #endif |
5049 | #endif |
4204 | |
5050 | |
4205 | #if EV_CLEANUP_ENABLE |
5051 | #if EV_CLEANUP_ENABLE |
4206 | void |
5052 | void |
4207 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
5053 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4208 | { |
5054 | { |
4209 | if (expect_false (ev_is_active (w))) |
5055 | if (ecb_expect_false (ev_is_active (w))) |
4210 | return; |
5056 | return; |
4211 | |
5057 | |
4212 | EV_FREQUENT_CHECK; |
5058 | EV_FREQUENT_CHECK; |
4213 | |
5059 | |
4214 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5060 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4215 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5061 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4216 | cleanups [cleanupcnt - 1] = w; |
5062 | cleanups [cleanupcnt - 1] = w; |
4217 | |
5063 | |
4218 | /* cleanup watchers should never keep a refcount on the loop */ |
5064 | /* cleanup watchers should never keep a refcount on the loop */ |
4219 | ev_unref (EV_A); |
5065 | ev_unref (EV_A); |
4220 | EV_FREQUENT_CHECK; |
5066 | EV_FREQUENT_CHECK; |
4221 | } |
5067 | } |
4222 | |
5068 | |
4223 | void |
5069 | void |
4224 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
5070 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4225 | { |
5071 | { |
4226 | clear_pending (EV_A_ (W)w); |
5072 | clear_pending (EV_A_ (W)w); |
4227 | if (expect_false (!ev_is_active (w))) |
5073 | if (ecb_expect_false (!ev_is_active (w))) |
4228 | return; |
5074 | return; |
4229 | |
5075 | |
4230 | EV_FREQUENT_CHECK; |
5076 | EV_FREQUENT_CHECK; |
4231 | ev_ref (EV_A); |
5077 | ev_ref (EV_A); |
4232 | |
5078 | |
… | |
… | |
4243 | } |
5089 | } |
4244 | #endif |
5090 | #endif |
4245 | |
5091 | |
4246 | #if EV_ASYNC_ENABLE |
5092 | #if EV_ASYNC_ENABLE |
4247 | void |
5093 | void |
4248 | ev_async_start (EV_P_ ev_async *w) |
5094 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4249 | { |
5095 | { |
4250 | if (expect_false (ev_is_active (w))) |
5096 | if (ecb_expect_false (ev_is_active (w))) |
4251 | return; |
5097 | return; |
4252 | |
5098 | |
4253 | w->sent = 0; |
5099 | w->sent = 0; |
4254 | |
5100 | |
4255 | evpipe_init (EV_A); |
5101 | evpipe_init (EV_A); |
4256 | |
5102 | |
4257 | EV_FREQUENT_CHECK; |
5103 | EV_FREQUENT_CHECK; |
4258 | |
5104 | |
4259 | ev_start (EV_A_ (W)w, ++asynccnt); |
5105 | ev_start (EV_A_ (W)w, ++asynccnt); |
4260 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5106 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4261 | asyncs [asynccnt - 1] = w; |
5107 | asyncs [asynccnt - 1] = w; |
4262 | |
5108 | |
4263 | EV_FREQUENT_CHECK; |
5109 | EV_FREQUENT_CHECK; |
4264 | } |
5110 | } |
4265 | |
5111 | |
4266 | void |
5112 | void |
4267 | ev_async_stop (EV_P_ ev_async *w) |
5113 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4268 | { |
5114 | { |
4269 | clear_pending (EV_A_ (W)w); |
5115 | clear_pending (EV_A_ (W)w); |
4270 | if (expect_false (!ev_is_active (w))) |
5116 | if (ecb_expect_false (!ev_is_active (w))) |
4271 | return; |
5117 | return; |
4272 | |
5118 | |
4273 | EV_FREQUENT_CHECK; |
5119 | EV_FREQUENT_CHECK; |
4274 | |
5120 | |
4275 | { |
5121 | { |
… | |
… | |
4283 | |
5129 | |
4284 | EV_FREQUENT_CHECK; |
5130 | EV_FREQUENT_CHECK; |
4285 | } |
5131 | } |
4286 | |
5132 | |
4287 | void |
5133 | void |
4288 | ev_async_send (EV_P_ ev_async *w) |
5134 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4289 | { |
5135 | { |
4290 | w->sent = 1; |
5136 | w->sent = 1; |
4291 | evpipe_write (EV_A_ &async_pending); |
5137 | evpipe_write (EV_A_ &async_pending); |
4292 | } |
5138 | } |
4293 | #endif |
5139 | #endif |
… | |
… | |
4330 | |
5176 | |
4331 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5177 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4332 | } |
5178 | } |
4333 | |
5179 | |
4334 | void |
5180 | void |
4335 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5181 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4336 | { |
5182 | { |
4337 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5183 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4338 | |
|
|
4339 | if (expect_false (!once)) |
|
|
4340 | { |
|
|
4341 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4342 | return; |
|
|
4343 | } |
|
|
4344 | |
5184 | |
4345 | once->cb = cb; |
5185 | once->cb = cb; |
4346 | once->arg = arg; |
5186 | once->arg = arg; |
4347 | |
5187 | |
4348 | ev_init (&once->io, once_cb_io); |
5188 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4361 | } |
5201 | } |
4362 | |
5202 | |
4363 | /*****************************************************************************/ |
5203 | /*****************************************************************************/ |
4364 | |
5204 | |
4365 | #if EV_WALK_ENABLE |
5205 | #if EV_WALK_ENABLE |
4366 | void ecb_cold |
5206 | ecb_cold |
|
|
5207 | void |
4367 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5208 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4368 | { |
5209 | { |
4369 | int i, j; |
5210 | int i, j; |
4370 | ev_watcher_list *wl, *wn; |
5211 | ev_watcher_list *wl, *wn; |
4371 | |
5212 | |
4372 | if (types & (EV_IO | EV_EMBED)) |
5213 | if (types & (EV_IO | EV_EMBED)) |