1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 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 |
… | |
… | |
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 | |
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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 | |
232 | |
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 |
… | |
… | |
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 |
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269 | # endif |
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270 | #endif |
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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 |
260 | # endif |
278 | # endif |
261 | #endif |
279 | #endif |
262 | |
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 |
… | |
… | |
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 | |
311 | #ifndef EV_USE_INOTIFY |
337 | #ifndef EV_USE_INOTIFY |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
338 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
313 | # define EV_USE_INOTIFY EV_FEATURE_OS |
339 | # define EV_USE_INOTIFY EV_FEATURE_OS |
314 | # else |
340 | # else |
315 | # define EV_USE_INOTIFY 0 |
341 | # define EV_USE_INOTIFY 0 |
… | |
… | |
356 | |
382 | |
357 | #ifndef EV_HEAP_CACHE_AT |
383 | #ifndef EV_HEAP_CACHE_AT |
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
384 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | #endif |
385 | #endif |
360 | |
386 | |
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387 | #ifdef __ANDROID__ |
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388 | /* supposedly, android doesn't typedef fd_mask */ |
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389 | # undef EV_USE_SELECT |
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390 | # define EV_USE_SELECT 0 |
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391 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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392 | # undef EV_USE_CLOCK_SYSCALL |
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393 | # define EV_USE_CLOCK_SYSCALL 0 |
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394 | #endif |
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395 | |
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396 | /* aix's poll.h seems to cause lots of trouble */ |
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397 | #ifdef _AIX |
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398 | /* AIX has a completely broken poll.h header */ |
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399 | # undef EV_USE_POLL |
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400 | # define EV_USE_POLL 0 |
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401 | #endif |
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402 | |
361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
403 | /* 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. */ |
404 | /* which makes programs even slower. might work on other unices, too. */ |
363 | #if EV_USE_CLOCK_SYSCALL |
405 | #if EV_USE_CLOCK_SYSCALL |
364 | # include <syscall.h> |
406 | # include <sys/syscall.h> |
365 | # ifdef SYS_clock_gettime |
407 | # ifdef SYS_clock_gettime |
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
408 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # undef EV_USE_MONOTONIC |
409 | # undef EV_USE_MONOTONIC |
368 | # define EV_USE_MONOTONIC 1 |
410 | # define EV_USE_MONOTONIC 1 |
369 | # else |
411 | # else |
… | |
… | |
372 | # endif |
414 | # endif |
373 | #endif |
415 | #endif |
374 | |
416 | |
375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
417 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
376 | |
418 | |
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 |
419 | #ifndef CLOCK_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
420 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 0 |
421 | # define EV_USE_MONOTONIC 0 |
386 | #endif |
422 | #endif |
387 | |
423 | |
… | |
… | |
397 | |
433 | |
398 | #if !EV_USE_NANOSLEEP |
434 | #if !EV_USE_NANOSLEEP |
399 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
435 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
400 | # if !defined _WIN32 && !defined __hpux |
436 | # if !defined _WIN32 && !defined __hpux |
401 | # include <sys/select.h> |
437 | # include <sys/select.h> |
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438 | # endif |
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439 | #endif |
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440 | |
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441 | #if EV_USE_LINUXAIO |
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442 | # include <sys/syscall.h> |
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443 | # if !SYS_io_getevents || !EV_USE_EPOLL |
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444 | # undef EV_USE_LINUXAIO |
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445 | # define EV_USE_LINUXAIO 0 |
402 | # endif |
446 | # endif |
403 | #endif |
447 | #endif |
404 | |
448 | |
405 | #if EV_USE_INOTIFY |
449 | #if EV_USE_INOTIFY |
406 | # include <sys/statfs.h> |
450 | # include <sys/statfs.h> |
… | |
… | |
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
452 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | # ifndef IN_DONT_FOLLOW |
453 | # ifndef IN_DONT_FOLLOW |
410 | # undef EV_USE_INOTIFY |
454 | # undef EV_USE_INOTIFY |
411 | # define EV_USE_INOTIFY 0 |
455 | # define EV_USE_INOTIFY 0 |
412 | # endif |
456 | # 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 |
457 | #endif |
418 | |
458 | |
419 | #if EV_USE_EVENTFD |
459 | #if EV_USE_EVENTFD |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
460 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
421 | # include <stdint.h> |
461 | # include <stdint.h> |
… | |
… | |
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
518 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
479 | /* ECB.H BEGIN */ |
519 | /* ECB.H BEGIN */ |
480 | /* |
520 | /* |
481 | * libecb - http://software.schmorp.de/pkg/libecb |
521 | * libecb - http://software.schmorp.de/pkg/libecb |
482 | * |
522 | * |
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
523 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
484 | * Copyright (©) 2011 Emanuele Giaquinta |
524 | * Copyright (©) 2011 Emanuele Giaquinta |
485 | * All rights reserved. |
525 | * All rights reserved. |
486 | * |
526 | * |
487 | * Redistribution and use in source and binary forms, with or without modifica- |
527 | * Redistribution and use in source and binary forms, with or without modifica- |
488 | * tion, are permitted provided that the following conditions are met: |
528 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
542 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
543 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
544 | * 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 |
545 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
546 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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547 | * |
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548 | * Alternatively, the contents of this file may be used under the terms of |
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549 | * the GNU General Public License ("GPL") version 2 or any later version, |
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550 | * in which case the provisions of the GPL are applicable instead of |
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551 | * the above. If you wish to allow the use of your version of this file |
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552 | * only under the terms of the GPL and not to allow others to use your |
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553 | * version of this file under the BSD license, indicate your decision |
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554 | * by deleting the provisions above and replace them with the notice |
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555 | * and other provisions required by the GPL. If you do not delete the |
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556 | * provisions above, a recipient may use your version of this file under |
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557 | * either the BSD or the GPL. |
507 | */ |
558 | */ |
508 | |
559 | |
509 | #ifndef ECB_H |
560 | #ifndef ECB_H |
510 | #define ECB_H |
561 | #define ECB_H |
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562 | |
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563 | /* 16 bits major, 16 bits minor */ |
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564 | #define ECB_VERSION 0x00010005 |
511 | |
565 | |
512 | #ifdef _WIN32 |
566 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
567 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
568 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
569 | typedef signed short int16_t; |
… | |
… | |
521 | typedef unsigned long long uint64_t; |
575 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
576 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
577 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
578 | typedef unsigned __int64 uint64_t; |
525 | #endif |
579 | #endif |
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580 | #ifdef _WIN64 |
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581 | #define ECB_PTRSIZE 8 |
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582 | typedef uint64_t uintptr_t; |
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583 | typedef int64_t intptr_t; |
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584 | #else |
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585 | #define ECB_PTRSIZE 4 |
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586 | typedef uint32_t uintptr_t; |
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587 | typedef int32_t intptr_t; |
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588 | #endif |
526 | #else |
589 | #else |
527 | #include <inttypes.h> |
590 | #include <inttypes.h> |
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591 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
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592 | #define ECB_PTRSIZE 8 |
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593 | #else |
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594 | #define ECB_PTRSIZE 4 |
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595 | #endif |
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596 | #endif |
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597 | |
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598 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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599 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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600 | |
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601 | /* work around x32 idiocy by defining proper macros */ |
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602 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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603 | #if _ILP32 |
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604 | #define ECB_AMD64_X32 1 |
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605 | #else |
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606 | #define ECB_AMD64 1 |
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607 | #endif |
528 | #endif |
608 | #endif |
529 | |
609 | |
530 | /* many compilers define _GNUC_ to some versions but then only implement |
610 | /* many compilers define _GNUC_ to some versions but then only implement |
531 | * what their idiot authors think are the "more important" extensions, |
611 | * what their idiot authors think are the "more important" extensions, |
532 | * causing enormous grief in return for some better fake benchmark numbers. |
612 | * causing enormous grief in return for some better fake benchmark numbers. |
533 | * or so. |
613 | * or so. |
534 | * we try to detect these and simply assume they are not gcc - if they have |
614 | * 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. |
615 | * an issue with that they should have done it right in the first place. |
536 | */ |
616 | */ |
537 | #ifndef ECB_GCC_VERSION |
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538 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
617 | #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 |
618 | #define ECB_GCC_VERSION(major,minor) 0 |
540 | #else |
619 | #else |
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
620 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
542 | #endif |
621 | #endif |
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622 | |
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623 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
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624 | |
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625 | #if __clang__ && defined __has_builtin |
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626 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
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627 | #else |
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628 | #define ECB_CLANG_BUILTIN(x) 0 |
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629 | #endif |
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630 | |
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631 | #if __clang__ && defined __has_extension |
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632 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
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633 | #else |
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634 | #define ECB_CLANG_EXTENSION(x) 0 |
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635 | #endif |
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636 | |
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637 | #define ECB_CPP (__cplusplus+0) |
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638 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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639 | #define ECB_CPP14 (__cplusplus >= 201402L) |
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640 | #define ECB_CPP17 (__cplusplus >= 201703L) |
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641 | |
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642 | #if ECB_CPP |
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643 | #define ECB_C 0 |
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644 | #define ECB_STDC_VERSION 0 |
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645 | #else |
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646 | #define ECB_C 1 |
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647 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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648 | #endif |
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649 | |
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650 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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651 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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652 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
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653 | |
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654 | #if ECB_CPP |
|
|
655 | #define ECB_EXTERN_C extern "C" |
|
|
656 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
657 | #define ECB_EXTERN_C_END } |
|
|
658 | #else |
|
|
659 | #define ECB_EXTERN_C extern |
|
|
660 | #define ECB_EXTERN_C_BEG |
|
|
661 | #define ECB_EXTERN_C_END |
543 | #endif |
662 | #endif |
544 | |
663 | |
545 | /*****************************************************************************/ |
664 | /*****************************************************************************/ |
546 | |
665 | |
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
666 | /* 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 */ |
667 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
549 | |
668 | |
550 | #if ECB_NO_THREADS |
669 | #if ECB_NO_THREADS |
551 | # define ECB_NO_SMP 1 |
670 | #define ECB_NO_SMP 1 |
552 | #endif |
671 | #endif |
553 | |
672 | |
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
673 | #if ECB_NO_SMP |
555 | #define ECB_MEMORY_FENCE do { } while (0) |
674 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
675 | #endif |
|
|
676 | |
|
|
677 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
678 | #if __xlC__ && ECB_CPP |
|
|
679 | #include <builtins.h> |
|
|
680 | #endif |
|
|
681 | |
|
|
682 | #if 1400 <= _MSC_VER |
|
|
683 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
556 | #endif |
684 | #endif |
557 | |
685 | |
558 | #ifndef ECB_MEMORY_FENCE |
686 | #ifndef ECB_MEMORY_FENCE |
559 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
687 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
560 | #if __i386 || __i386__ |
688 | #if __i386 || __i386__ |
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
689 | #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 */ |
690 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
691 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
692 | #elif ECB_GCC_AMD64 |
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
694 | #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 */ |
695 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
696 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
698 | #elif defined __ARM_ARCH_2__ \ |
|
|
699 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
700 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
701 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
702 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
703 | || defined __ARM_ARCH_5TEJ__ |
|
|
704 | /* 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__ \ |
705 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
571 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
706 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
707 | || defined __ARM_ARCH_6T2__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
708 | #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__ \ |
709 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
574 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
710 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
711 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
576 | #elif __sparc || __sparc__ |
712 | #elif __aarch64__ |
|
|
713 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
714 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
715 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
716 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
717 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
580 | #elif defined __s390__ || defined __s390x__ |
718 | #elif defined __s390__ || defined __s390x__ |
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
719 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
582 | #elif defined __mips__ |
720 | #elif defined __mips__ |
|
|
721 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
722 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
723 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
584 | #elif defined __alpha__ |
724 | #elif defined __alpha__ |
585 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
725 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
726 | #elif defined __hppa__ |
|
|
727 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
728 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
729 | #elif defined __ia64__ |
|
|
730 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
731 | #elif defined __m68k__ |
|
|
732 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
733 | #elif defined __m88k__ |
|
|
734 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
735 | #elif defined __sh__ |
|
|
736 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
586 | #endif |
737 | #endif |
587 | #endif |
738 | #endif |
588 | #endif |
739 | #endif |
589 | |
740 | |
590 | #ifndef ECB_MEMORY_FENCE |
741 | #ifndef ECB_MEMORY_FENCE |
|
|
742 | #if ECB_GCC_VERSION(4,7) |
|
|
743 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
744 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
745 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
746 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
747 | |
|
|
748 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
749 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
750 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
751 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
752 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
753 | |
591 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
754 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
592 | #define ECB_MEMORY_FENCE __sync_synchronize () |
755 | #define ECB_MEMORY_FENCE __sync_synchronize () |
593 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
756 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
594 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
757 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
758 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
759 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
760 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
761 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
595 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
762 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
596 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
763 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
597 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
764 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
598 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
765 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
599 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
766 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
609 | #define ECB_MEMORY_FENCE __sync () |
776 | #define ECB_MEMORY_FENCE __sync () |
610 | #endif |
777 | #endif |
611 | #endif |
778 | #endif |
612 | |
779 | |
613 | #ifndef ECB_MEMORY_FENCE |
780 | #ifndef ECB_MEMORY_FENCE |
|
|
781 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
782 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
783 | /* not just C11 atomics and atomic accesses */ |
|
|
784 | #include <stdatomic.h> |
|
|
785 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
786 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
787 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
788 | /* for most usages, or gcc and clang have a bug */ |
|
|
789 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
790 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
791 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
792 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
793 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
794 | #endif |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | #ifndef ECB_MEMORY_FENCE |
614 | #if !ECB_AVOID_PTHREADS |
798 | #if !ECB_AVOID_PTHREADS |
615 | /* |
799 | /* |
616 | * if you get undefined symbol references to pthread_mutex_lock, |
800 | * if you get undefined symbol references to pthread_mutex_lock, |
617 | * or failure to find pthread.h, then you should implement |
801 | * or failure to find pthread.h, then you should implement |
618 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
802 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
636 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
820 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
637 | #endif |
821 | #endif |
638 | |
822 | |
639 | /*****************************************************************************/ |
823 | /*****************************************************************************/ |
640 | |
824 | |
641 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
825 | #if ECB_CPP |
642 | |
|
|
643 | #if __cplusplus |
|
|
644 | #define ecb_inline static inline |
826 | #define ecb_inline static inline |
645 | #elif ECB_GCC_VERSION(2,5) |
827 | #elif ECB_GCC_VERSION(2,5) |
646 | #define ecb_inline static __inline__ |
828 | #define ecb_inline static __inline__ |
647 | #elif ECB_C99 |
829 | #elif ECB_C99 |
648 | #define ecb_inline static inline |
830 | #define ecb_inline static inline |
… | |
… | |
662 | |
844 | |
663 | #define ECB_CONCAT_(a, b) a ## b |
845 | #define ECB_CONCAT_(a, b) a ## b |
664 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
846 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
665 | #define ECB_STRINGIFY_(a) # a |
847 | #define ECB_STRINGIFY_(a) # a |
666 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
848 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
849 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
667 | |
850 | |
668 | #define ecb_function_ ecb_inline |
851 | #define ecb_function_ ecb_inline |
669 | |
852 | |
670 | #if ECB_GCC_VERSION(3,1) |
853 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
671 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
854 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
855 | #else |
|
|
856 | #define ecb_attribute(attrlist) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
672 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
860 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
861 | #else |
|
|
862 | /* possible C11 impl for integral types |
|
|
863 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
864 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
865 | |
|
|
866 | #define ecb_is_constant(expr) 0 |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
673 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
870 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
871 | #else |
|
|
872 | #define ecb_expect(expr,value) (expr) |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
674 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
876 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
675 | #else |
877 | #else |
676 | #define ecb_attribute(attrlist) |
|
|
677 | #define ecb_is_constant(expr) 0 |
|
|
678 | #define ecb_expect(expr,value) (expr) |
|
|
679 | #define ecb_prefetch(addr,rw,locality) |
878 | #define ecb_prefetch(addr,rw,locality) |
680 | #endif |
879 | #endif |
681 | |
880 | |
682 | /* no emulation for ecb_decltype */ |
881 | /* no emulation for ecb_decltype */ |
683 | #if ECB_GCC_VERSION(4,5) |
882 | #if ECB_CPP11 |
|
|
883 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
884 | template<class T> struct ecb_decltype_t { typedef T type; }; |
684 | #define ecb_decltype(x) __decltype(x) |
885 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
685 | #elif ECB_GCC_VERSION(3,0) |
886 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
686 | #define ecb_decltype(x) __typeof(x) |
887 | #define ecb_decltype(x) __typeof__ (x) |
687 | #endif |
888 | #endif |
688 | |
889 | |
|
|
890 | #if _MSC_VER >= 1300 |
|
|
891 | #define ecb_deprecated __declspec (deprecated) |
|
|
892 | #else |
|
|
893 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | #if _MSC_VER >= 1500 |
|
|
897 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
898 | #elif ECB_GCC_VERSION(4,5) |
|
|
899 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
900 | #else |
|
|
901 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
902 | #endif |
|
|
903 | |
|
|
904 | #if _MSC_VER >= 1400 |
|
|
905 | #define ecb_noinline __declspec (noinline) |
|
|
906 | #else |
689 | #define ecb_noinline ecb_attribute ((__noinline__)) |
907 | #define ecb_noinline ecb_attribute ((__noinline__)) |
690 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
908 | #endif |
|
|
909 | |
691 | #define ecb_unused ecb_attribute ((__unused__)) |
910 | #define ecb_unused ecb_attribute ((__unused__)) |
692 | #define ecb_const ecb_attribute ((__const__)) |
911 | #define ecb_const ecb_attribute ((__const__)) |
693 | #define ecb_pure ecb_attribute ((__pure__)) |
912 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
913 | |
|
|
914 | #if ECB_C11 || __IBMC_NORETURN |
|
|
915 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
916 | #define ecb_noreturn _Noreturn |
|
|
917 | #elif ECB_CPP11 |
|
|
918 | #define ecb_noreturn [[noreturn]] |
|
|
919 | #elif _MSC_VER >= 1200 |
|
|
920 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
921 | #define ecb_noreturn __declspec (noreturn) |
|
|
922 | #else |
|
|
923 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
924 | #endif |
694 | |
925 | |
695 | #if ECB_GCC_VERSION(4,3) |
926 | #if ECB_GCC_VERSION(4,3) |
696 | #define ecb_artificial ecb_attribute ((__artificial__)) |
927 | #define ecb_artificial ecb_attribute ((__artificial__)) |
697 | #define ecb_hot ecb_attribute ((__hot__)) |
928 | #define ecb_hot ecb_attribute ((__hot__)) |
698 | #define ecb_cold ecb_attribute ((__cold__)) |
929 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
710 | /* for compatibility to the rest of the world */ |
941 | /* for compatibility to the rest of the world */ |
711 | #define ecb_likely(expr) ecb_expect_true (expr) |
942 | #define ecb_likely(expr) ecb_expect_true (expr) |
712 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
943 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
713 | |
944 | |
714 | /* count trailing zero bits and count # of one bits */ |
945 | /* count trailing zero bits and count # of one bits */ |
715 | #if ECB_GCC_VERSION(3,4) |
946 | #if ECB_GCC_VERSION(3,4) \ |
|
|
947 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
948 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
949 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
716 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
950 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
717 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
951 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
718 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
952 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
719 | #define ecb_ctz32(x) __builtin_ctz (x) |
953 | #define ecb_ctz32(x) __builtin_ctz (x) |
720 | #define ecb_ctz64(x) __builtin_ctzll (x) |
954 | #define ecb_ctz64(x) __builtin_ctzll (x) |
721 | #define ecb_popcount32(x) __builtin_popcount (x) |
955 | #define ecb_popcount32(x) __builtin_popcount (x) |
722 | /* no popcountll */ |
956 | /* no popcountll */ |
723 | #else |
957 | #else |
724 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
958 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
725 | ecb_function_ int |
959 | ecb_function_ ecb_const int |
726 | ecb_ctz32 (uint32_t x) |
960 | ecb_ctz32 (uint32_t x) |
727 | { |
961 | { |
|
|
962 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
963 | unsigned long r; |
|
|
964 | _BitScanForward (&r, x); |
|
|
965 | return (int)r; |
|
|
966 | #else |
728 | int r = 0; |
967 | int r = 0; |
729 | |
968 | |
730 | x &= ~x + 1; /* this isolates the lowest bit */ |
969 | x &= ~x + 1; /* this isolates the lowest bit */ |
731 | |
970 | |
732 | #if ECB_branchless_on_i386 |
971 | #if ECB_branchless_on_i386 |
… | |
… | |
742 | if (x & 0xff00ff00) r += 8; |
981 | if (x & 0xff00ff00) r += 8; |
743 | if (x & 0xffff0000) r += 16; |
982 | if (x & 0xffff0000) r += 16; |
744 | #endif |
983 | #endif |
745 | |
984 | |
746 | return r; |
985 | return r; |
|
|
986 | #endif |
747 | } |
987 | } |
748 | |
988 | |
749 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
989 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
750 | ecb_function_ int |
990 | ecb_function_ ecb_const int |
751 | ecb_ctz64 (uint64_t x) |
991 | ecb_ctz64 (uint64_t x) |
752 | { |
992 | { |
|
|
993 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
994 | unsigned long r; |
|
|
995 | _BitScanForward64 (&r, x); |
|
|
996 | return (int)r; |
|
|
997 | #else |
753 | int shift = x & 0xffffffffU ? 0 : 32; |
998 | int shift = x & 0xffffffff ? 0 : 32; |
754 | return ecb_ctz32 (x >> shift) + shift; |
999 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1000 | #endif |
755 | } |
1001 | } |
756 | |
1002 | |
757 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1003 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
758 | ecb_function_ int |
1004 | ecb_function_ ecb_const int |
759 | ecb_popcount32 (uint32_t x) |
1005 | ecb_popcount32 (uint32_t x) |
760 | { |
1006 | { |
761 | x -= (x >> 1) & 0x55555555; |
1007 | x -= (x >> 1) & 0x55555555; |
762 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1008 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
763 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1009 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
764 | x *= 0x01010101; |
1010 | x *= 0x01010101; |
765 | |
1011 | |
766 | return x >> 24; |
1012 | return x >> 24; |
767 | } |
1013 | } |
768 | |
1014 | |
769 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1015 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
770 | ecb_function_ int ecb_ld32 (uint32_t x) |
1016 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
771 | { |
1017 | { |
|
|
1018 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1019 | unsigned long r; |
|
|
1020 | _BitScanReverse (&r, x); |
|
|
1021 | return (int)r; |
|
|
1022 | #else |
772 | int r = 0; |
1023 | int r = 0; |
773 | |
1024 | |
774 | if (x >> 16) { x >>= 16; r += 16; } |
1025 | if (x >> 16) { x >>= 16; r += 16; } |
775 | if (x >> 8) { x >>= 8; r += 8; } |
1026 | if (x >> 8) { x >>= 8; r += 8; } |
776 | if (x >> 4) { x >>= 4; r += 4; } |
1027 | if (x >> 4) { x >>= 4; r += 4; } |
777 | if (x >> 2) { x >>= 2; r += 2; } |
1028 | if (x >> 2) { x >>= 2; r += 2; } |
778 | if (x >> 1) { r += 1; } |
1029 | if (x >> 1) { r += 1; } |
779 | |
1030 | |
780 | return r; |
1031 | return r; |
|
|
1032 | #endif |
781 | } |
1033 | } |
782 | |
1034 | |
783 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1035 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
784 | ecb_function_ int ecb_ld64 (uint64_t x) |
1036 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
785 | { |
1037 | { |
|
|
1038 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1039 | unsigned long r; |
|
|
1040 | _BitScanReverse64 (&r, x); |
|
|
1041 | return (int)r; |
|
|
1042 | #else |
786 | int r = 0; |
1043 | int r = 0; |
787 | |
1044 | |
788 | if (x >> 32) { x >>= 32; r += 32; } |
1045 | if (x >> 32) { x >>= 32; r += 32; } |
789 | |
1046 | |
790 | return r + ecb_ld32 (x); |
1047 | return r + ecb_ld32 (x); |
|
|
1048 | #endif |
791 | } |
1049 | } |
792 | #endif |
1050 | #endif |
793 | |
1051 | |
|
|
1052 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1053 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1054 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1055 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1056 | |
794 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1057 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
795 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1058 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
796 | { |
1059 | { |
797 | return ( (x * 0x0802U & 0x22110U) |
1060 | return ( (x * 0x0802U & 0x22110U) |
798 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1061 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
799 | } |
1062 | } |
800 | |
1063 | |
801 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1064 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
802 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1065 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
803 | { |
1066 | { |
804 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1067 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
805 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1068 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
806 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1069 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
807 | x = ( x >> 8 ) | ( x << 8); |
1070 | x = ( x >> 8 ) | ( x << 8); |
808 | |
1071 | |
809 | return x; |
1072 | return x; |
810 | } |
1073 | } |
811 | |
1074 | |
812 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1075 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
813 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1076 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
814 | { |
1077 | { |
815 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1078 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
816 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1079 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
817 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1080 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
818 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1081 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
821 | return x; |
1084 | return x; |
822 | } |
1085 | } |
823 | |
1086 | |
824 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1087 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
825 | /* so for this version we are lazy */ |
1088 | /* so for this version we are lazy */ |
826 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1089 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
827 | ecb_function_ int |
1090 | ecb_function_ ecb_const int |
828 | ecb_popcount64 (uint64_t x) |
1091 | ecb_popcount64 (uint64_t x) |
829 | { |
1092 | { |
830 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1093 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
831 | } |
1094 | } |
832 | |
1095 | |
833 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1096 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
834 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1097 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
835 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1098 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
836 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1099 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
837 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1100 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
838 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1101 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
839 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1102 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
840 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1103 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
841 | |
1104 | |
842 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1105 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
843 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1106 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
844 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1107 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
845 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1108 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
846 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1109 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
847 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1110 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
848 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1111 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
849 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1112 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
850 | |
1113 | |
851 | #if ECB_GCC_VERSION(4,3) |
1114 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1115 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1116 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1117 | #else |
852 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1118 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1119 | #endif |
853 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1120 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
854 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1121 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1122 | #elif _MSC_VER |
|
|
1123 | #include <stdlib.h> |
|
|
1124 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1125 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1126 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
855 | #else |
1127 | #else |
856 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1128 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
857 | ecb_function_ uint16_t |
1129 | ecb_function_ ecb_const uint16_t |
858 | ecb_bswap16 (uint16_t x) |
1130 | ecb_bswap16 (uint16_t x) |
859 | { |
1131 | { |
860 | return ecb_rotl16 (x, 8); |
1132 | return ecb_rotl16 (x, 8); |
861 | } |
1133 | } |
862 | |
1134 | |
863 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1135 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
864 | ecb_function_ uint32_t |
1136 | ecb_function_ ecb_const uint32_t |
865 | ecb_bswap32 (uint32_t x) |
1137 | ecb_bswap32 (uint32_t x) |
866 | { |
1138 | { |
867 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1139 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
868 | } |
1140 | } |
869 | |
1141 | |
870 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1142 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
871 | ecb_function_ uint64_t |
1143 | ecb_function_ ecb_const uint64_t |
872 | ecb_bswap64 (uint64_t x) |
1144 | ecb_bswap64 (uint64_t x) |
873 | { |
1145 | { |
874 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1146 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
875 | } |
1147 | } |
876 | #endif |
1148 | #endif |
877 | |
1149 | |
878 | #if ECB_GCC_VERSION(4,5) |
1150 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
879 | #define ecb_unreachable() __builtin_unreachable () |
1151 | #define ecb_unreachable() __builtin_unreachable () |
880 | #else |
1152 | #else |
881 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1153 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
882 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1154 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
883 | ecb_inline void ecb_unreachable (void) { } |
1155 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
884 | #endif |
1156 | #endif |
885 | |
1157 | |
886 | /* try to tell the compiler that some condition is definitely true */ |
1158 | /* try to tell the compiler that some condition is definitely true */ |
887 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1159 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
888 | |
1160 | |
889 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1161 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
890 | ecb_inline unsigned char |
1162 | ecb_inline ecb_const uint32_t |
891 | ecb_byteorder_helper (void) |
1163 | ecb_byteorder_helper (void) |
892 | { |
1164 | { |
893 | const uint32_t u = 0x11223344; |
1165 | /* the union code still generates code under pressure in gcc, */ |
894 | return *(unsigned char *)&u; |
1166 | /* but less than using pointers, and always seems to */ |
|
|
1167 | /* successfully return a constant. */ |
|
|
1168 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1169 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1170 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1171 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1172 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1173 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1174 | return 0x44332211; |
|
|
1175 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1176 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1177 | #define ECB_BIG_ENDIAN 1 |
|
|
1178 | return 0x11223344; |
|
|
1179 | #else |
|
|
1180 | union |
|
|
1181 | { |
|
|
1182 | uint8_t c[4]; |
|
|
1183 | uint32_t u; |
|
|
1184 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1185 | return u.u; |
|
|
1186 | #endif |
895 | } |
1187 | } |
896 | |
1188 | |
897 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1189 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
898 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1190 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
899 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1191 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
900 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1192 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
901 | |
1193 | |
902 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1194 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
903 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1195 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
904 | #else |
1196 | #else |
905 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1197 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
906 | #endif |
1198 | #endif |
907 | |
1199 | |
908 | #if __cplusplus |
1200 | #if ECB_CPP |
909 | template<typename T> |
1201 | template<typename T> |
910 | static inline T ecb_div_rd (T val, T div) |
1202 | static inline T ecb_div_rd (T val, T div) |
911 | { |
1203 | { |
912 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1204 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
913 | } |
1205 | } |
… | |
… | |
930 | } |
1222 | } |
931 | #else |
1223 | #else |
932 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1224 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
933 | #endif |
1225 | #endif |
934 | |
1226 | |
|
|
1227 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1228 | ecb_function_ ecb_const uint32_t |
|
|
1229 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1230 | { |
|
|
1231 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1232 | int e = (x >> 10) & 0x001f; |
|
|
1233 | unsigned int m = x & 0x03ff; |
|
|
1234 | |
|
|
1235 | if (ecb_expect_false (e == 31)) |
|
|
1236 | /* infinity or NaN */ |
|
|
1237 | e = 255 - (127 - 15); |
|
|
1238 | else if (ecb_expect_false (!e)) |
|
|
1239 | { |
|
|
1240 | if (ecb_expect_true (!m)) |
|
|
1241 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1242 | e = 0 - (127 - 15); |
|
|
1243 | else |
|
|
1244 | { |
|
|
1245 | /* subnormal, renormalise */ |
|
|
1246 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1247 | |
|
|
1248 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1249 | e -= s - 1; |
|
|
1250 | } |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1254 | e += 127 - 15; |
|
|
1255 | |
|
|
1256 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1257 | } |
|
|
1258 | |
|
|
1259 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1260 | ecb_function_ ecb_const uint16_t |
|
|
1261 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1262 | { |
|
|
1263 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1264 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1265 | unsigned int m = x & 0x007fffff; |
|
|
1266 | |
|
|
1267 | x &= 0x7fffffff; |
|
|
1268 | |
|
|
1269 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1270 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1271 | { |
|
|
1272 | /* mantissa round-to-even */ |
|
|
1273 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1274 | |
|
|
1275 | /* handle overflow */ |
|
|
1276 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1277 | { |
|
|
1278 | m >>= 1; |
|
|
1279 | e += 1; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | /* handle large numbers and infinity */ |
|
|
1286 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1287 | return s | 0x7c00; |
|
|
1288 | |
|
|
1289 | /* handle zero, subnormals and small numbers */ |
|
|
1290 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1291 | { |
|
|
1292 | /* zero */ |
|
|
1293 | if (ecb_expect_true (!x)) |
|
|
1294 | return s; |
|
|
1295 | |
|
|
1296 | /* handle subnormals */ |
|
|
1297 | |
|
|
1298 | /* too small, will be zero */ |
|
|
1299 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1300 | return s; |
|
|
1301 | |
|
|
1302 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1303 | |
|
|
1304 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1305 | { |
|
|
1306 | unsigned int bits = 14 - e; |
|
|
1307 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1308 | unsigned int even = (m >> bits) & 1; |
|
|
1309 | |
|
|
1310 | /* if this overflows, we will end up with a normalised number */ |
|
|
1311 | m = (m + half + even) >> bits; |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | return s | m; |
|
|
1315 | } |
|
|
1316 | |
|
|
1317 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1318 | m >>= 13; |
|
|
1319 | |
|
|
1320 | return s | 0x7c00 | m | !m; |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | /*******************************************************************************/ |
|
|
1324 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1325 | |
|
|
1326 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1327 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1328 | #if 0 \ |
|
|
1329 | || __i386 || __i386__ \ |
|
|
1330 | || ECB_GCC_AMD64 \ |
|
|
1331 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1332 | || defined __s390__ || defined __s390x__ \ |
|
|
1333 | || defined __mips__ \ |
|
|
1334 | || defined __alpha__ \ |
|
|
1335 | || defined __hppa__ \ |
|
|
1336 | || defined __ia64__ \ |
|
|
1337 | || defined __m68k__ \ |
|
|
1338 | || defined __m88k__ \ |
|
|
1339 | || defined __sh__ \ |
|
|
1340 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1341 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1342 | || defined __aarch64__ |
|
|
1343 | #define ECB_STDFP 1 |
|
|
1344 | #include <string.h> /* for memcpy */ |
|
|
1345 | #else |
|
|
1346 | #define ECB_STDFP 0 |
|
|
1347 | #endif |
|
|
1348 | |
|
|
1349 | #ifndef ECB_NO_LIBM |
|
|
1350 | |
|
|
1351 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1352 | |
|
|
1353 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1354 | #ifdef INFINITY |
|
|
1355 | #define ECB_INFINITY INFINITY |
|
|
1356 | #else |
|
|
1357 | #define ECB_INFINITY HUGE_VAL |
|
|
1358 | #endif |
|
|
1359 | |
|
|
1360 | #ifdef NAN |
|
|
1361 | #define ECB_NAN NAN |
|
|
1362 | #else |
|
|
1363 | #define ECB_NAN ECB_INFINITY |
|
|
1364 | #endif |
|
|
1365 | |
|
|
1366 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1367 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1368 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1369 | #else |
|
|
1370 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1371 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1372 | #endif |
|
|
1373 | |
|
|
1374 | /* convert a float to ieee single/binary32 */ |
|
|
1375 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1376 | ecb_function_ ecb_const uint32_t |
|
|
1377 | ecb_float_to_binary32 (float x) |
|
|
1378 | { |
|
|
1379 | uint32_t r; |
|
|
1380 | |
|
|
1381 | #if ECB_STDFP |
|
|
1382 | memcpy (&r, &x, 4); |
|
|
1383 | #else |
|
|
1384 | /* slow emulation, works for anything but -0 */ |
|
|
1385 | uint32_t m; |
|
|
1386 | int e; |
|
|
1387 | |
|
|
1388 | if (x == 0e0f ) return 0x00000000U; |
|
|
1389 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1390 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1391 | if (x != x ) return 0x7fbfffffU; |
|
|
1392 | |
|
|
1393 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1394 | |
|
|
1395 | r = m & 0x80000000U; |
|
|
1396 | |
|
|
1397 | if (r) |
|
|
1398 | m = -m; |
|
|
1399 | |
|
|
1400 | if (e <= -126) |
|
|
1401 | { |
|
|
1402 | m &= 0xffffffU; |
|
|
1403 | m >>= (-125 - e); |
|
|
1404 | e = -126; |
|
|
1405 | } |
|
|
1406 | |
|
|
1407 | r |= (e + 126) << 23; |
|
|
1408 | r |= m & 0x7fffffU; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* converts an ieee single/binary32 to a float */ |
|
|
1415 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1416 | ecb_function_ ecb_const float |
|
|
1417 | ecb_binary32_to_float (uint32_t x) |
|
|
1418 | { |
|
|
1419 | float r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 4); |
|
|
1423 | #else |
|
|
1424 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1425 | int neg = x >> 31; |
|
|
1426 | int e = (x >> 23) & 0xffU; |
|
|
1427 | |
|
|
1428 | x &= 0x7fffffU; |
|
|
1429 | |
|
|
1430 | if (e) |
|
|
1431 | x |= 0x800000U; |
|
|
1432 | else |
|
|
1433 | e = 1; |
|
|
1434 | |
|
|
1435 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1436 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1437 | |
|
|
1438 | r = neg ? -r : r; |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | return r; |
|
|
1442 | } |
|
|
1443 | |
|
|
1444 | /* convert a double to ieee double/binary64 */ |
|
|
1445 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1446 | ecb_function_ ecb_const uint64_t |
|
|
1447 | ecb_double_to_binary64 (double x) |
|
|
1448 | { |
|
|
1449 | uint64_t r; |
|
|
1450 | |
|
|
1451 | #if ECB_STDFP |
|
|
1452 | memcpy (&r, &x, 8); |
|
|
1453 | #else |
|
|
1454 | /* slow emulation, works for anything but -0 */ |
|
|
1455 | uint64_t m; |
|
|
1456 | int e; |
|
|
1457 | |
|
|
1458 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1459 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1460 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1461 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1462 | |
|
|
1463 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1464 | |
|
|
1465 | r = m & 0x8000000000000000;; |
|
|
1466 | |
|
|
1467 | if (r) |
|
|
1468 | m = -m; |
|
|
1469 | |
|
|
1470 | if (e <= -1022) |
|
|
1471 | { |
|
|
1472 | m &= 0x1fffffffffffffU; |
|
|
1473 | m >>= (-1021 - e); |
|
|
1474 | e = -1022; |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1478 | r |= m & 0xfffffffffffffU; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* converts an ieee double/binary64 to a double */ |
|
|
1485 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1486 | ecb_function_ ecb_const double |
|
|
1487 | ecb_binary64_to_double (uint64_t x) |
|
|
1488 | { |
|
|
1489 | double r; |
|
|
1490 | |
|
|
1491 | #if ECB_STDFP |
|
|
1492 | memcpy (&r, &x, 8); |
|
|
1493 | #else |
|
|
1494 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1495 | int neg = x >> 63; |
|
|
1496 | int e = (x >> 52) & 0x7ffU; |
|
|
1497 | |
|
|
1498 | x &= 0xfffffffffffffU; |
|
|
1499 | |
|
|
1500 | if (e) |
|
|
1501 | x |= 0x10000000000000U; |
|
|
1502 | else |
|
|
1503 | e = 1; |
|
|
1504 | |
|
|
1505 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1506 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1507 | |
|
|
1508 | r = neg ? -r : r; |
|
|
1509 | #endif |
|
|
1510 | |
|
|
1511 | return r; |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | /* convert a float to ieee half/binary16 */ |
|
|
1515 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1516 | ecb_function_ ecb_const uint16_t |
|
|
1517 | ecb_float_to_binary16 (float x) |
|
|
1518 | { |
|
|
1519 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | /* convert an ieee half/binary16 to float */ |
|
|
1523 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1524 | ecb_function_ ecb_const float |
|
|
1525 | ecb_binary16_to_float (uint16_t x) |
|
|
1526 | { |
|
|
1527 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | #endif |
|
|
1531 | |
935 | #endif |
1532 | #endif |
936 | |
1533 | |
937 | /* ECB.H END */ |
1534 | /* ECB.H END */ |
938 | |
1535 | |
939 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1536 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
960 | #define inline_size ecb_inline |
1557 | #define inline_size ecb_inline |
961 | |
1558 | |
962 | #if EV_FEATURE_CODE |
1559 | #if EV_FEATURE_CODE |
963 | # define inline_speed ecb_inline |
1560 | # define inline_speed ecb_inline |
964 | #else |
1561 | #else |
965 | # define inline_speed static noinline |
1562 | # define inline_speed noinline static |
966 | #endif |
1563 | #endif |
967 | |
1564 | |
968 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1565 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
969 | |
1566 | |
970 | #if EV_MINPRI == EV_MAXPRI |
1567 | #if EV_MINPRI == EV_MAXPRI |
971 | # define ABSPRI(w) (((W)w), 0) |
1568 | # define ABSPRI(w) (((W)w), 0) |
972 | #else |
1569 | #else |
973 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1570 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
974 | #endif |
1571 | #endif |
975 | |
1572 | |
976 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1573 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
977 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
978 | |
1574 | |
979 | typedef ev_watcher *W; |
1575 | typedef ev_watcher *W; |
980 | typedef ev_watcher_list *WL; |
1576 | typedef ev_watcher_list *WL; |
981 | typedef ev_watcher_time *WT; |
1577 | typedef ev_watcher_time *WT; |
982 | |
1578 | |
… | |
… | |
1007 | # include "ev_win32.c" |
1603 | # include "ev_win32.c" |
1008 | #endif |
1604 | #endif |
1009 | |
1605 | |
1010 | /*****************************************************************************/ |
1606 | /*****************************************************************************/ |
1011 | |
1607 | |
|
|
1608 | #if EV_USE_LINUXAIO |
|
|
1609 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1610 | #endif |
|
|
1611 | |
1012 | /* define a suitable floor function (only used by periodics atm) */ |
1612 | /* define a suitable floor function (only used by periodics atm) */ |
1013 | |
1613 | |
1014 | #if EV_USE_FLOOR |
1614 | #if EV_USE_FLOOR |
1015 | # include <math.h> |
1615 | # include <math.h> |
1016 | # define ev_floor(v) floor (v) |
1616 | # define ev_floor(v) floor (v) |
1017 | #else |
1617 | #else |
1018 | |
1618 | |
1019 | #include <float.h> |
1619 | #include <float.h> |
1020 | |
1620 | |
1021 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1621 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1622 | noinline |
1022 | static ev_tstamp noinline |
1623 | static ev_tstamp |
1023 | ev_floor (ev_tstamp v) |
1624 | ev_floor (ev_tstamp v) |
1024 | { |
1625 | { |
1025 | /* the choice of shift factor is not terribly important */ |
1626 | /* the choice of shift factor is not terribly important */ |
1026 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1627 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1628 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1059 | |
1660 | |
1060 | #ifdef __linux |
1661 | #ifdef __linux |
1061 | # include <sys/utsname.h> |
1662 | # include <sys/utsname.h> |
1062 | #endif |
1663 | #endif |
1063 | |
1664 | |
1064 | static unsigned int noinline ecb_cold |
1665 | noinline ecb_cold |
|
|
1666 | static unsigned int |
1065 | ev_linux_version (void) |
1667 | ev_linux_version (void) |
1066 | { |
1668 | { |
1067 | #ifdef __linux |
1669 | #ifdef __linux |
1068 | unsigned int v = 0; |
1670 | unsigned int v = 0; |
1069 | struct utsname buf; |
1671 | struct utsname buf; |
… | |
… | |
1098 | } |
1700 | } |
1099 | |
1701 | |
1100 | /*****************************************************************************/ |
1702 | /*****************************************************************************/ |
1101 | |
1703 | |
1102 | #if EV_AVOID_STDIO |
1704 | #if EV_AVOID_STDIO |
1103 | static void noinline ecb_cold |
1705 | noinline ecb_cold |
|
|
1706 | static void |
1104 | ev_printerr (const char *msg) |
1707 | ev_printerr (const char *msg) |
1105 | { |
1708 | { |
1106 | write (STDERR_FILENO, msg, strlen (msg)); |
1709 | write (STDERR_FILENO, msg, strlen (msg)); |
1107 | } |
1710 | } |
1108 | #endif |
1711 | #endif |
1109 | |
1712 | |
1110 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1713 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1111 | |
1714 | |
1112 | void ecb_cold |
1715 | ecb_cold |
|
|
1716 | void |
1113 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
1717 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1114 | { |
1718 | { |
1115 | syserr_cb = cb; |
1719 | syserr_cb = cb; |
1116 | } |
1720 | } |
1117 | |
1721 | |
1118 | static void noinline ecb_cold |
1722 | noinline ecb_cold |
|
|
1723 | static void |
1119 | ev_syserr (const char *msg) |
1724 | ev_syserr (const char *msg) |
1120 | { |
1725 | { |
1121 | if (!msg) |
1726 | if (!msg) |
1122 | msg = "(libev) system error"; |
1727 | msg = "(libev) system error"; |
1123 | |
1728 | |
… | |
… | |
1136 | abort (); |
1741 | abort (); |
1137 | } |
1742 | } |
1138 | } |
1743 | } |
1139 | |
1744 | |
1140 | static void * |
1745 | static void * |
1141 | ev_realloc_emul (void *ptr, long size) |
1746 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1142 | { |
1747 | { |
1143 | #if __GLIBC__ |
|
|
1144 | return realloc (ptr, size); |
|
|
1145 | #else |
|
|
1146 | /* some systems, notably openbsd and darwin, fail to properly |
1748 | /* some systems, notably openbsd and darwin, fail to properly |
1147 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1749 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1148 | * the single unix specification, so work around them here. |
1750 | * the single unix specification, so work around them here. |
|
|
1751 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1752 | * despite documenting it otherwise. |
1149 | */ |
1753 | */ |
1150 | |
1754 | |
1151 | if (size) |
1755 | if (size) |
1152 | return realloc (ptr, size); |
1756 | return realloc (ptr, size); |
1153 | |
1757 | |
1154 | free (ptr); |
1758 | free (ptr); |
1155 | return 0; |
1759 | return 0; |
1156 | #endif |
|
|
1157 | } |
1760 | } |
1158 | |
1761 | |
1159 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1762 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1160 | |
1763 | |
1161 | void ecb_cold |
1764 | ecb_cold |
|
|
1765 | void |
1162 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
1766 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1163 | { |
1767 | { |
1164 | alloc = cb; |
1768 | alloc = cb; |
1165 | } |
1769 | } |
1166 | |
1770 | |
1167 | inline_speed void * |
1771 | inline_speed void * |
… | |
… | |
1194 | typedef struct |
1798 | typedef struct |
1195 | { |
1799 | { |
1196 | WL head; |
1800 | WL head; |
1197 | unsigned char events; /* the events watched for */ |
1801 | unsigned char events; /* the events watched for */ |
1198 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1802 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1199 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1803 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1200 | unsigned char unused; |
1804 | unsigned char unused; |
1201 | #if EV_USE_EPOLL |
1805 | #if EV_USE_EPOLL |
1202 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1806 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1203 | #endif |
1807 | #endif |
1204 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1808 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
… | |
… | |
1284 | |
1888 | |
1285 | /*****************************************************************************/ |
1889 | /*****************************************************************************/ |
1286 | |
1890 | |
1287 | #ifndef EV_HAVE_EV_TIME |
1891 | #ifndef EV_HAVE_EV_TIME |
1288 | ev_tstamp |
1892 | ev_tstamp |
1289 | ev_time (void) EV_THROW |
1893 | ev_time (void) EV_NOEXCEPT |
1290 | { |
1894 | { |
1291 | #if EV_USE_REALTIME |
1895 | #if EV_USE_REALTIME |
1292 | if (expect_true (have_realtime)) |
1896 | if (expect_true (have_realtime)) |
1293 | { |
1897 | { |
1294 | struct timespec ts; |
1898 | struct timespec ts; |
… | |
… | |
1318 | return ev_time (); |
1922 | return ev_time (); |
1319 | } |
1923 | } |
1320 | |
1924 | |
1321 | #if EV_MULTIPLICITY |
1925 | #if EV_MULTIPLICITY |
1322 | ev_tstamp |
1926 | ev_tstamp |
1323 | ev_now (EV_P) EV_THROW |
1927 | ev_now (EV_P) EV_NOEXCEPT |
1324 | { |
1928 | { |
1325 | return ev_rt_now; |
1929 | return ev_rt_now; |
1326 | } |
1930 | } |
1327 | #endif |
1931 | #endif |
1328 | |
1932 | |
1329 | void |
1933 | void |
1330 | ev_sleep (ev_tstamp delay) EV_THROW |
1934 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1331 | { |
1935 | { |
1332 | if (delay > 0.) |
1936 | if (delay > 0.) |
1333 | { |
1937 | { |
1334 | #if EV_USE_NANOSLEEP |
1938 | #if EV_USE_NANOSLEEP |
1335 | struct timespec ts; |
1939 | struct timespec ts; |
1336 | |
1940 | |
1337 | EV_TS_SET (ts, delay); |
1941 | EV_TS_SET (ts, delay); |
1338 | nanosleep (&ts, 0); |
1942 | nanosleep (&ts, 0); |
1339 | #elif defined _WIN32 |
1943 | #elif defined _WIN32 |
|
|
1944 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1945 | /* compared to select (µs) or nanosleep (ns) */ |
1340 | Sleep ((unsigned long)(delay * 1e3)); |
1946 | Sleep ((unsigned long)(delay * 1e3)); |
1341 | #else |
1947 | #else |
1342 | struct timeval tv; |
1948 | struct timeval tv; |
1343 | |
1949 | |
1344 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1950 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1375 | } |
1981 | } |
1376 | |
1982 | |
1377 | return ncur; |
1983 | return ncur; |
1378 | } |
1984 | } |
1379 | |
1985 | |
1380 | static void * noinline ecb_cold |
1986 | noinline ecb_cold |
|
|
1987 | static void * |
1381 | array_realloc (int elem, void *base, int *cur, int cnt) |
1988 | array_realloc (int elem, void *base, int *cur, int cnt) |
1382 | { |
1989 | { |
1383 | *cur = array_nextsize (elem, *cur, cnt); |
1990 | *cur = array_nextsize (elem, *cur, cnt); |
1384 | return ev_realloc (base, elem * *cur); |
1991 | return ev_realloc (base, elem * *cur); |
1385 | } |
1992 | } |
1386 | |
1993 | |
|
|
1994 | #define array_needsize_noinit(base,count) |
|
|
1995 | |
1387 | #define array_init_zero(base,count) \ |
1996 | #define array_needsize_zerofill(base,count) \ |
1388 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1997 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1389 | |
1998 | |
1390 | #define array_needsize(type,base,cur,cnt,init) \ |
1999 | #define array_needsize(type,base,cur,cnt,init) \ |
1391 | if (expect_false ((cnt) > (cur))) \ |
2000 | if (expect_false ((cnt) > (cur))) \ |
1392 | { \ |
2001 | { \ |
1393 | int ecb_unused ocur_ = (cur); \ |
2002 | ecb_unused int ocur_ = (cur); \ |
1394 | (base) = (type *)array_realloc \ |
2003 | (base) = (type *)array_realloc \ |
1395 | (sizeof (type), (base), &(cur), (cnt)); \ |
2004 | (sizeof (type), (base), &(cur), (cnt)); \ |
1396 | init ((base) + (ocur_), (cur) - ocur_); \ |
2005 | init ((base) + (ocur_), (cur) - ocur_); \ |
1397 | } |
2006 | } |
1398 | |
2007 | |
… | |
… | |
1410 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2019 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1411 | |
2020 | |
1412 | /*****************************************************************************/ |
2021 | /*****************************************************************************/ |
1413 | |
2022 | |
1414 | /* dummy callback for pending events */ |
2023 | /* dummy callback for pending events */ |
1415 | static void noinline |
2024 | noinline |
|
|
2025 | static void |
1416 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2026 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1417 | { |
2027 | { |
1418 | } |
2028 | } |
1419 | |
2029 | |
1420 | void noinline |
2030 | noinline |
|
|
2031 | void |
1421 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2032 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1422 | { |
2033 | { |
1423 | W w_ = (W)w; |
2034 | W w_ = (W)w; |
1424 | int pri = ABSPRI (w_); |
2035 | int pri = ABSPRI (w_); |
1425 | |
2036 | |
1426 | if (expect_false (w_->pending)) |
2037 | if (expect_false (w_->pending)) |
1427 | pendings [pri][w_->pending - 1].events |= revents; |
2038 | pendings [pri][w_->pending - 1].events |= revents; |
1428 | else |
2039 | else |
1429 | { |
2040 | { |
1430 | w_->pending = ++pendingcnt [pri]; |
2041 | w_->pending = ++pendingcnt [pri]; |
1431 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2042 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1432 | pendings [pri][w_->pending - 1].w = w_; |
2043 | pendings [pri][w_->pending - 1].w = w_; |
1433 | pendings [pri][w_->pending - 1].events = revents; |
2044 | pendings [pri][w_->pending - 1].events = revents; |
1434 | } |
2045 | } |
|
|
2046 | |
|
|
2047 | pendingpri = NUMPRI - 1; |
1435 | } |
2048 | } |
1436 | |
2049 | |
1437 | inline_speed void |
2050 | inline_speed void |
1438 | feed_reverse (EV_P_ W w) |
2051 | feed_reverse (EV_P_ W w) |
1439 | { |
2052 | { |
1440 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2053 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1441 | rfeeds [rfeedcnt++] = w; |
2054 | rfeeds [rfeedcnt++] = w; |
1442 | } |
2055 | } |
1443 | |
2056 | |
1444 | inline_size void |
2057 | inline_size void |
1445 | feed_reverse_done (EV_P_ int revents) |
2058 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1485 | if (expect_true (!anfd->reify)) |
2098 | if (expect_true (!anfd->reify)) |
1486 | fd_event_nocheck (EV_A_ fd, revents); |
2099 | fd_event_nocheck (EV_A_ fd, revents); |
1487 | } |
2100 | } |
1488 | |
2101 | |
1489 | void |
2102 | void |
1490 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2103 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1491 | { |
2104 | { |
1492 | if (fd >= 0 && fd < anfdmax) |
2105 | if (fd >= 0 && fd < anfdmax) |
1493 | fd_event_nocheck (EV_A_ fd, revents); |
2106 | fd_event_nocheck (EV_A_ fd, revents); |
1494 | } |
2107 | } |
1495 | |
2108 | |
… | |
… | |
1553 | |
2166 | |
1554 | fdchangecnt = 0; |
2167 | fdchangecnt = 0; |
1555 | } |
2168 | } |
1556 | |
2169 | |
1557 | /* something about the given fd changed */ |
2170 | /* something about the given fd changed */ |
1558 | inline_size void |
2171 | inline_size |
|
|
2172 | void |
1559 | fd_change (EV_P_ int fd, int flags) |
2173 | fd_change (EV_P_ int fd, int flags) |
1560 | { |
2174 | { |
1561 | unsigned char reify = anfds [fd].reify; |
2175 | unsigned char reify = anfds [fd].reify; |
1562 | anfds [fd].reify |= flags; |
2176 | anfds [fd].reify |= flags; |
1563 | |
2177 | |
1564 | if (expect_true (!reify)) |
2178 | if (expect_true (!reify)) |
1565 | { |
2179 | { |
1566 | ++fdchangecnt; |
2180 | ++fdchangecnt; |
1567 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2181 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1568 | fdchanges [fdchangecnt - 1] = fd; |
2182 | fdchanges [fdchangecnt - 1] = fd; |
1569 | } |
2183 | } |
1570 | } |
2184 | } |
1571 | |
2185 | |
1572 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2186 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1573 | inline_speed void ecb_cold |
2187 | inline_speed ecb_cold void |
1574 | fd_kill (EV_P_ int fd) |
2188 | fd_kill (EV_P_ int fd) |
1575 | { |
2189 | { |
1576 | ev_io *w; |
2190 | ev_io *w; |
1577 | |
2191 | |
1578 | while ((w = (ev_io *)anfds [fd].head)) |
2192 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1581 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2195 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1582 | } |
2196 | } |
1583 | } |
2197 | } |
1584 | |
2198 | |
1585 | /* check whether the given fd is actually valid, for error recovery */ |
2199 | /* check whether the given fd is actually valid, for error recovery */ |
1586 | inline_size int ecb_cold |
2200 | inline_size ecb_cold int |
1587 | fd_valid (int fd) |
2201 | fd_valid (int fd) |
1588 | { |
2202 | { |
1589 | #ifdef _WIN32 |
2203 | #ifdef _WIN32 |
1590 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2204 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1591 | #else |
2205 | #else |
1592 | return fcntl (fd, F_GETFD) != -1; |
2206 | return fcntl (fd, F_GETFD) != -1; |
1593 | #endif |
2207 | #endif |
1594 | } |
2208 | } |
1595 | |
2209 | |
1596 | /* called on EBADF to verify fds */ |
2210 | /* called on EBADF to verify fds */ |
1597 | static void noinline ecb_cold |
2211 | noinline ecb_cold |
|
|
2212 | static void |
1598 | fd_ebadf (EV_P) |
2213 | fd_ebadf (EV_P) |
1599 | { |
2214 | { |
1600 | int fd; |
2215 | int fd; |
1601 | |
2216 | |
1602 | for (fd = 0; fd < anfdmax; ++fd) |
2217 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1604 | if (!fd_valid (fd) && errno == EBADF) |
2219 | if (!fd_valid (fd) && errno == EBADF) |
1605 | fd_kill (EV_A_ fd); |
2220 | fd_kill (EV_A_ fd); |
1606 | } |
2221 | } |
1607 | |
2222 | |
1608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2223 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1609 | static void noinline ecb_cold |
2224 | noinline ecb_cold |
|
|
2225 | static void |
1610 | fd_enomem (EV_P) |
2226 | fd_enomem (EV_P) |
1611 | { |
2227 | { |
1612 | int fd; |
2228 | int fd; |
1613 | |
2229 | |
1614 | for (fd = anfdmax; fd--; ) |
2230 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1618 | break; |
2234 | break; |
1619 | } |
2235 | } |
1620 | } |
2236 | } |
1621 | |
2237 | |
1622 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2238 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1623 | static void noinline |
2239 | noinline |
|
|
2240 | static void |
1624 | fd_rearm_all (EV_P) |
2241 | fd_rearm_all (EV_P) |
1625 | { |
2242 | { |
1626 | int fd; |
2243 | int fd; |
1627 | |
2244 | |
1628 | for (fd = 0; fd < anfdmax; ++fd) |
2245 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1809 | |
2426 | |
1810 | /*****************************************************************************/ |
2427 | /*****************************************************************************/ |
1811 | |
2428 | |
1812 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2429 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1813 | |
2430 | |
1814 | static void noinline ecb_cold |
2431 | noinline ecb_cold |
|
|
2432 | static void |
1815 | evpipe_init (EV_P) |
2433 | evpipe_init (EV_P) |
1816 | { |
2434 | { |
1817 | if (!ev_is_active (&pipe_w)) |
2435 | if (!ev_is_active (&pipe_w)) |
1818 | { |
2436 | { |
|
|
2437 | int fds [2]; |
|
|
2438 | |
1819 | # if EV_USE_EVENTFD |
2439 | # if EV_USE_EVENTFD |
|
|
2440 | fds [0] = -1; |
1820 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2441 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1821 | if (evfd < 0 && errno == EINVAL) |
2442 | if (fds [1] < 0 && errno == EINVAL) |
1822 | evfd = eventfd (0, 0); |
2443 | fds [1] = eventfd (0, 0); |
1823 | |
2444 | |
1824 | if (evfd >= 0) |
2445 | if (fds [1] < 0) |
|
|
2446 | # endif |
1825 | { |
2447 | { |
|
|
2448 | while (pipe (fds)) |
|
|
2449 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2450 | |
|
|
2451 | fd_intern (fds [0]); |
|
|
2452 | } |
|
|
2453 | |
1826 | evpipe [0] = -1; |
2454 | evpipe [0] = fds [0]; |
1827 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2455 | |
1828 | ev_io_set (&pipe_w, evfd, EV_READ); |
2456 | if (evpipe [1] < 0) |
|
|
2457 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2458 | else |
|
|
2459 | { |
|
|
2460 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2461 | /* so that evpipe_write can always rely on its value. */ |
|
|
2462 | /* this branch does not do anything sensible on windows, */ |
|
|
2463 | /* so must not be executed on windows */ |
|
|
2464 | |
|
|
2465 | dup2 (fds [1], evpipe [1]); |
|
|
2466 | close (fds [1]); |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | fd_intern (evpipe [1]); |
|
|
2470 | |
|
|
2471 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2472 | ev_io_start (EV_A_ &pipe_w); |
|
|
2473 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2474 | } |
|
|
2475 | } |
|
|
2476 | |
|
|
2477 | inline_speed void |
|
|
2478 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2479 | { |
|
|
2480 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2481 | |
|
|
2482 | if (expect_true (*flag)) |
|
|
2483 | return; |
|
|
2484 | |
|
|
2485 | *flag = 1; |
|
|
2486 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2487 | |
|
|
2488 | pipe_write_skipped = 1; |
|
|
2489 | |
|
|
2490 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2491 | |
|
|
2492 | if (pipe_write_wanted) |
|
|
2493 | { |
|
|
2494 | int old_errno; |
|
|
2495 | |
|
|
2496 | pipe_write_skipped = 0; |
|
|
2497 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2498 | |
|
|
2499 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2500 | |
|
|
2501 | #if EV_USE_EVENTFD |
|
|
2502 | if (evpipe [0] < 0) |
|
|
2503 | { |
|
|
2504 | uint64_t counter = 1; |
|
|
2505 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1829 | } |
2506 | } |
1830 | else |
2507 | else |
1831 | # endif |
2508 | #endif |
1832 | { |
2509 | { |
1833 | while (pipe (evpipe)) |
2510 | #ifdef _WIN32 |
1834 | ev_syserr ("(libev) error creating signal/async pipe"); |
2511 | WSABUF buf; |
1835 | |
2512 | DWORD sent; |
1836 | fd_intern (evpipe [0]); |
2513 | buf.buf = (char *)&buf; |
1837 | fd_intern (evpipe [1]); |
2514 | buf.len = 1; |
1838 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2515 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1839 | } |
2516 | #else |
1840 | |
|
|
1841 | ev_io_start (EV_A_ &pipe_w); |
|
|
1842 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1843 | } |
|
|
1844 | } |
|
|
1845 | |
|
|
1846 | inline_speed void |
|
|
1847 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1848 | { |
|
|
1849 | if (expect_true (*flag)) |
|
|
1850 | return; |
|
|
1851 | |
|
|
1852 | *flag = 1; |
|
|
1853 | |
|
|
1854 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1855 | |
|
|
1856 | pipe_write_skipped = 1; |
|
|
1857 | |
|
|
1858 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1859 | |
|
|
1860 | if (pipe_write_wanted) |
|
|
1861 | { |
|
|
1862 | int old_errno; |
|
|
1863 | |
|
|
1864 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1865 | |
|
|
1866 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1867 | |
|
|
1868 | #if EV_USE_EVENTFD |
|
|
1869 | if (evfd >= 0) |
|
|
1870 | { |
|
|
1871 | uint64_t counter = 1; |
|
|
1872 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1873 | } |
|
|
1874 | else |
|
|
1875 | #endif |
|
|
1876 | { |
|
|
1877 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1878 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1879 | /* so when you think this write should be a send instead, please find out */ |
|
|
1880 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1881 | /* tell me. thank you. */ |
|
|
1882 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1883 | /* check the ev documentation on how to use this flag */ |
|
|
1884 | write (evpipe [1], &(evpipe [1]), 1); |
2517 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2518 | #endif |
1885 | } |
2519 | } |
1886 | |
2520 | |
1887 | errno = old_errno; |
2521 | errno = old_errno; |
1888 | } |
2522 | } |
1889 | } |
2523 | } |
… | |
… | |
1896 | int i; |
2530 | int i; |
1897 | |
2531 | |
1898 | if (revents & EV_READ) |
2532 | if (revents & EV_READ) |
1899 | { |
2533 | { |
1900 | #if EV_USE_EVENTFD |
2534 | #if EV_USE_EVENTFD |
1901 | if (evfd >= 0) |
2535 | if (evpipe [0] < 0) |
1902 | { |
2536 | { |
1903 | uint64_t counter; |
2537 | uint64_t counter; |
1904 | read (evfd, &counter, sizeof (uint64_t)); |
2538 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1905 | } |
2539 | } |
1906 | else |
2540 | else |
1907 | #endif |
2541 | #endif |
1908 | { |
2542 | { |
1909 | char dummy; |
2543 | char dummy[4]; |
1910 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2544 | #ifdef _WIN32 |
|
|
2545 | WSABUF buf; |
|
|
2546 | DWORD recvd; |
|
|
2547 | DWORD flags = 0; |
|
|
2548 | buf.buf = dummy; |
|
|
2549 | buf.len = sizeof (dummy); |
|
|
2550 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2551 | #else |
1911 | read (evpipe [0], &dummy, 1); |
2552 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2553 | #endif |
1912 | } |
2554 | } |
1913 | } |
2555 | } |
1914 | |
2556 | |
1915 | pipe_write_skipped = 0; |
2557 | pipe_write_skipped = 0; |
|
|
2558 | |
|
|
2559 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1916 | |
2560 | |
1917 | #if EV_SIGNAL_ENABLE |
2561 | #if EV_SIGNAL_ENABLE |
1918 | if (sig_pending) |
2562 | if (sig_pending) |
1919 | { |
2563 | { |
1920 | sig_pending = 0; |
2564 | sig_pending = 0; |
|
|
2565 | |
|
|
2566 | ECB_MEMORY_FENCE; |
1921 | |
2567 | |
1922 | for (i = EV_NSIG - 1; i--; ) |
2568 | for (i = EV_NSIG - 1; i--; ) |
1923 | if (expect_false (signals [i].pending)) |
2569 | if (expect_false (signals [i].pending)) |
1924 | ev_feed_signal_event (EV_A_ i + 1); |
2570 | ev_feed_signal_event (EV_A_ i + 1); |
1925 | } |
2571 | } |
… | |
… | |
1927 | |
2573 | |
1928 | #if EV_ASYNC_ENABLE |
2574 | #if EV_ASYNC_ENABLE |
1929 | if (async_pending) |
2575 | if (async_pending) |
1930 | { |
2576 | { |
1931 | async_pending = 0; |
2577 | async_pending = 0; |
|
|
2578 | |
|
|
2579 | ECB_MEMORY_FENCE; |
1932 | |
2580 | |
1933 | for (i = asynccnt; i--; ) |
2581 | for (i = asynccnt; i--; ) |
1934 | if (asyncs [i]->sent) |
2582 | if (asyncs [i]->sent) |
1935 | { |
2583 | { |
1936 | asyncs [i]->sent = 0; |
2584 | asyncs [i]->sent = 0; |
|
|
2585 | ECB_MEMORY_FENCE_RELEASE; |
1937 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2586 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1938 | } |
2587 | } |
1939 | } |
2588 | } |
1940 | #endif |
2589 | #endif |
1941 | } |
2590 | } |
1942 | |
2591 | |
1943 | /*****************************************************************************/ |
2592 | /*****************************************************************************/ |
1944 | |
2593 | |
1945 | void |
2594 | void |
1946 | ev_feed_signal (int signum) EV_THROW |
2595 | ev_feed_signal (int signum) EV_NOEXCEPT |
1947 | { |
2596 | { |
1948 | #if EV_MULTIPLICITY |
2597 | #if EV_MULTIPLICITY |
|
|
2598 | EV_P; |
|
|
2599 | ECB_MEMORY_FENCE_ACQUIRE; |
1949 | EV_P = signals [signum - 1].loop; |
2600 | EV_A = signals [signum - 1].loop; |
1950 | |
2601 | |
1951 | if (!EV_A) |
2602 | if (!EV_A) |
1952 | return; |
2603 | return; |
1953 | #endif |
2604 | #endif |
1954 | |
2605 | |
1955 | if (!ev_active (&pipe_w)) |
|
|
1956 | return; |
|
|
1957 | |
|
|
1958 | signals [signum - 1].pending = 1; |
2606 | signals [signum - 1].pending = 1; |
1959 | evpipe_write (EV_A_ &sig_pending); |
2607 | evpipe_write (EV_A_ &sig_pending); |
1960 | } |
2608 | } |
1961 | |
2609 | |
1962 | static void |
2610 | static void |
… | |
… | |
1967 | #endif |
2615 | #endif |
1968 | |
2616 | |
1969 | ev_feed_signal (signum); |
2617 | ev_feed_signal (signum); |
1970 | } |
2618 | } |
1971 | |
2619 | |
1972 | void noinline |
2620 | noinline |
|
|
2621 | void |
1973 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2622 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1974 | { |
2623 | { |
1975 | WL w; |
2624 | WL w; |
1976 | |
2625 | |
1977 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2626 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1978 | return; |
2627 | return; |
1979 | |
2628 | |
1980 | --signum; |
2629 | --signum; |
1981 | |
2630 | |
1982 | #if EV_MULTIPLICITY |
2631 | #if EV_MULTIPLICITY |
… | |
… | |
1986 | if (expect_false (signals [signum].loop != EV_A)) |
2635 | if (expect_false (signals [signum].loop != EV_A)) |
1987 | return; |
2636 | return; |
1988 | #endif |
2637 | #endif |
1989 | |
2638 | |
1990 | signals [signum].pending = 0; |
2639 | signals [signum].pending = 0; |
|
|
2640 | ECB_MEMORY_FENCE_RELEASE; |
1991 | |
2641 | |
1992 | for (w = signals [signum].head; w; w = w->next) |
2642 | for (w = signals [signum].head; w; w = w->next) |
1993 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2643 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1994 | } |
2644 | } |
1995 | |
2645 | |
… | |
… | |
2086 | # include "ev_kqueue.c" |
2736 | # include "ev_kqueue.c" |
2087 | #endif |
2737 | #endif |
2088 | #if EV_USE_EPOLL |
2738 | #if EV_USE_EPOLL |
2089 | # include "ev_epoll.c" |
2739 | # include "ev_epoll.c" |
2090 | #endif |
2740 | #endif |
|
|
2741 | #if EV_USE_LINUXAIO |
|
|
2742 | # include "ev_linuxaio.c" |
|
|
2743 | #endif |
2091 | #if EV_USE_POLL |
2744 | #if EV_USE_POLL |
2092 | # include "ev_poll.c" |
2745 | # include "ev_poll.c" |
2093 | #endif |
2746 | #endif |
2094 | #if EV_USE_SELECT |
2747 | #if EV_USE_SELECT |
2095 | # include "ev_select.c" |
2748 | # include "ev_select.c" |
2096 | #endif |
2749 | #endif |
2097 | |
2750 | |
2098 | int ecb_cold |
2751 | ecb_cold int |
2099 | ev_version_major (void) EV_THROW |
2752 | ev_version_major (void) EV_NOEXCEPT |
2100 | { |
2753 | { |
2101 | return EV_VERSION_MAJOR; |
2754 | return EV_VERSION_MAJOR; |
2102 | } |
2755 | } |
2103 | |
2756 | |
2104 | int ecb_cold |
2757 | ecb_cold int |
2105 | ev_version_minor (void) EV_THROW |
2758 | ev_version_minor (void) EV_NOEXCEPT |
2106 | { |
2759 | { |
2107 | return EV_VERSION_MINOR; |
2760 | return EV_VERSION_MINOR; |
2108 | } |
2761 | } |
2109 | |
2762 | |
2110 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2763 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2111 | int inline_size ecb_cold |
2764 | inline_size ecb_cold int |
2112 | enable_secure (void) |
2765 | enable_secure (void) |
2113 | { |
2766 | { |
2114 | #ifdef _WIN32 |
2767 | #ifdef _WIN32 |
2115 | return 0; |
2768 | return 0; |
2116 | #else |
2769 | #else |
2117 | return getuid () != geteuid () |
2770 | return getuid () != geteuid () |
2118 | || getgid () != getegid (); |
2771 | || getgid () != getegid (); |
2119 | #endif |
2772 | #endif |
2120 | } |
2773 | } |
2121 | |
2774 | |
2122 | unsigned int ecb_cold |
2775 | ecb_cold |
|
|
2776 | unsigned int |
2123 | ev_supported_backends (void) EV_THROW |
2777 | ev_supported_backends (void) EV_NOEXCEPT |
2124 | { |
2778 | { |
2125 | unsigned int flags = 0; |
2779 | unsigned int flags = 0; |
2126 | |
2780 | |
2127 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2781 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2128 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2782 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2129 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2783 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2784 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
2130 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2785 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2131 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2786 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2132 | |
2787 | |
2133 | return flags; |
2788 | return flags; |
2134 | } |
2789 | } |
2135 | |
2790 | |
2136 | unsigned int ecb_cold |
2791 | ecb_cold |
|
|
2792 | unsigned int |
2137 | ev_recommended_backends (void) EV_THROW |
2793 | ev_recommended_backends (void) EV_NOEXCEPT |
2138 | { |
2794 | { |
2139 | unsigned int flags = ev_supported_backends (); |
2795 | unsigned int flags = ev_supported_backends (); |
2140 | |
2796 | |
2141 | #ifndef __NetBSD__ |
2797 | #ifndef __NetBSD__ |
2142 | /* kqueue is borked on everything but netbsd apparently */ |
2798 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2150 | #endif |
2806 | #endif |
2151 | #ifdef __FreeBSD__ |
2807 | #ifdef __FreeBSD__ |
2152 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2808 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2153 | #endif |
2809 | #endif |
2154 | |
2810 | |
|
|
2811 | /* TODO: linuxaio is very experimental */ |
|
|
2812 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2813 | |
2155 | return flags; |
2814 | return flags; |
2156 | } |
2815 | } |
2157 | |
2816 | |
2158 | unsigned int ecb_cold |
2817 | ecb_cold |
|
|
2818 | unsigned int |
2159 | ev_embeddable_backends (void) EV_THROW |
2819 | ev_embeddable_backends (void) EV_NOEXCEPT |
2160 | { |
2820 | { |
2161 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2821 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2162 | |
2822 | |
2163 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2823 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2164 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2824 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2166 | |
2826 | |
2167 | return flags; |
2827 | return flags; |
2168 | } |
2828 | } |
2169 | |
2829 | |
2170 | unsigned int |
2830 | unsigned int |
2171 | ev_backend (EV_P) EV_THROW |
2831 | ev_backend (EV_P) EV_NOEXCEPT |
2172 | { |
2832 | { |
2173 | return backend; |
2833 | return backend; |
2174 | } |
2834 | } |
2175 | |
2835 | |
2176 | #if EV_FEATURE_API |
2836 | #if EV_FEATURE_API |
2177 | unsigned int |
2837 | unsigned int |
2178 | ev_iteration (EV_P) EV_THROW |
2838 | ev_iteration (EV_P) EV_NOEXCEPT |
2179 | { |
2839 | { |
2180 | return loop_count; |
2840 | return loop_count; |
2181 | } |
2841 | } |
2182 | |
2842 | |
2183 | unsigned int |
2843 | unsigned int |
2184 | ev_depth (EV_P) EV_THROW |
2844 | ev_depth (EV_P) EV_NOEXCEPT |
2185 | { |
2845 | { |
2186 | return loop_depth; |
2846 | return loop_depth; |
2187 | } |
2847 | } |
2188 | |
2848 | |
2189 | void |
2849 | void |
2190 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2850 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2191 | { |
2851 | { |
2192 | io_blocktime = interval; |
2852 | io_blocktime = interval; |
2193 | } |
2853 | } |
2194 | |
2854 | |
2195 | void |
2855 | void |
2196 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2856 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2197 | { |
2857 | { |
2198 | timeout_blocktime = interval; |
2858 | timeout_blocktime = interval; |
2199 | } |
2859 | } |
2200 | |
2860 | |
2201 | void |
2861 | void |
2202 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2862 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2203 | { |
2863 | { |
2204 | userdata = data; |
2864 | userdata = data; |
2205 | } |
2865 | } |
2206 | |
2866 | |
2207 | void * |
2867 | void * |
2208 | ev_userdata (EV_P) EV_THROW |
2868 | ev_userdata (EV_P) EV_NOEXCEPT |
2209 | { |
2869 | { |
2210 | return userdata; |
2870 | return userdata; |
2211 | } |
2871 | } |
2212 | |
2872 | |
2213 | void |
2873 | void |
2214 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2874 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2215 | { |
2875 | { |
2216 | invoke_cb = invoke_pending_cb; |
2876 | invoke_cb = invoke_pending_cb; |
2217 | } |
2877 | } |
2218 | |
2878 | |
2219 | void |
2879 | void |
2220 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2880 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2221 | { |
2881 | { |
2222 | release_cb = release; |
2882 | release_cb = release; |
2223 | acquire_cb = acquire; |
2883 | acquire_cb = acquire; |
2224 | } |
2884 | } |
2225 | #endif |
2885 | #endif |
2226 | |
2886 | |
2227 | /* initialise a loop structure, must be zero-initialised */ |
2887 | /* initialise a loop structure, must be zero-initialised */ |
2228 | static void noinline ecb_cold |
2888 | noinline ecb_cold |
|
|
2889 | static void |
2229 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2890 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2230 | { |
2891 | { |
2231 | if (!backend) |
2892 | if (!backend) |
2232 | { |
2893 | { |
2233 | origflags = flags; |
2894 | origflags = flags; |
2234 | |
2895 | |
… | |
… | |
2279 | #if EV_ASYNC_ENABLE |
2940 | #if EV_ASYNC_ENABLE |
2280 | async_pending = 0; |
2941 | async_pending = 0; |
2281 | #endif |
2942 | #endif |
2282 | pipe_write_skipped = 0; |
2943 | pipe_write_skipped = 0; |
2283 | pipe_write_wanted = 0; |
2944 | pipe_write_wanted = 0; |
|
|
2945 | evpipe [0] = -1; |
|
|
2946 | evpipe [1] = -1; |
2284 | #if EV_USE_INOTIFY |
2947 | #if EV_USE_INOTIFY |
2285 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2948 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2286 | #endif |
2949 | #endif |
2287 | #if EV_USE_SIGNALFD |
2950 | #if EV_USE_SIGNALFD |
2288 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2951 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2290 | |
2953 | |
2291 | if (!(flags & EVBACKEND_MASK)) |
2954 | if (!(flags & EVBACKEND_MASK)) |
2292 | flags |= ev_recommended_backends (); |
2955 | flags |= ev_recommended_backends (); |
2293 | |
2956 | |
2294 | #if EV_USE_IOCP |
2957 | #if EV_USE_IOCP |
2295 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2958 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2296 | #endif |
2959 | #endif |
2297 | #if EV_USE_PORT |
2960 | #if EV_USE_PORT |
2298 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2961 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2299 | #endif |
2962 | #endif |
2300 | #if EV_USE_KQUEUE |
2963 | #if EV_USE_KQUEUE |
2301 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2964 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
2965 | #endif |
|
|
2966 | #if EV_USE_LINUXAIO |
|
|
2967 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2302 | #endif |
2968 | #endif |
2303 | #if EV_USE_EPOLL |
2969 | #if EV_USE_EPOLL |
2304 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2970 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2305 | #endif |
2971 | #endif |
2306 | #if EV_USE_POLL |
2972 | #if EV_USE_POLL |
2307 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2973 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2308 | #endif |
2974 | #endif |
2309 | #if EV_USE_SELECT |
2975 | #if EV_USE_SELECT |
2310 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2976 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2311 | #endif |
2977 | #endif |
2312 | |
2978 | |
2313 | ev_prepare_init (&pending_w, pendingcb); |
2979 | ev_prepare_init (&pending_w, pendingcb); |
2314 | |
2980 | |
2315 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2981 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2318 | #endif |
2984 | #endif |
2319 | } |
2985 | } |
2320 | } |
2986 | } |
2321 | |
2987 | |
2322 | /* free up a loop structure */ |
2988 | /* free up a loop structure */ |
2323 | void ecb_cold |
2989 | ecb_cold |
|
|
2990 | void |
2324 | ev_loop_destroy (EV_P) EV_THROW |
2991 | ev_loop_destroy (EV_P) |
2325 | { |
2992 | { |
2326 | int i; |
2993 | int i; |
2327 | |
2994 | |
2328 | #if EV_MULTIPLICITY |
2995 | #if EV_MULTIPLICITY |
2329 | /* mimic free (0) */ |
2996 | /* mimic free (0) */ |
… | |
… | |
2339 | EV_INVOKE_PENDING; |
3006 | EV_INVOKE_PENDING; |
2340 | } |
3007 | } |
2341 | #endif |
3008 | #endif |
2342 | |
3009 | |
2343 | #if EV_CHILD_ENABLE |
3010 | #if EV_CHILD_ENABLE |
2344 | if (ev_is_active (&childev)) |
3011 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2345 | { |
3012 | { |
2346 | ev_ref (EV_A); /* child watcher */ |
3013 | ev_ref (EV_A); /* child watcher */ |
2347 | ev_signal_stop (EV_A_ &childev); |
3014 | ev_signal_stop (EV_A_ &childev); |
2348 | } |
3015 | } |
2349 | #endif |
3016 | #endif |
… | |
… | |
2351 | if (ev_is_active (&pipe_w)) |
3018 | if (ev_is_active (&pipe_w)) |
2352 | { |
3019 | { |
2353 | /*ev_ref (EV_A);*/ |
3020 | /*ev_ref (EV_A);*/ |
2354 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3021 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2355 | |
3022 | |
2356 | #if EV_USE_EVENTFD |
|
|
2357 | if (evfd >= 0) |
|
|
2358 | close (evfd); |
|
|
2359 | #endif |
|
|
2360 | |
|
|
2361 | if (evpipe [0] >= 0) |
|
|
2362 | { |
|
|
2363 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3023 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2364 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3024 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2365 | } |
|
|
2366 | } |
3025 | } |
2367 | |
3026 | |
2368 | #if EV_USE_SIGNALFD |
3027 | #if EV_USE_SIGNALFD |
2369 | if (ev_is_active (&sigfd_w)) |
3028 | if (ev_is_active (&sigfd_w)) |
2370 | close (sigfd); |
3029 | close (sigfd); |
… | |
… | |
2377 | |
3036 | |
2378 | if (backend_fd >= 0) |
3037 | if (backend_fd >= 0) |
2379 | close (backend_fd); |
3038 | close (backend_fd); |
2380 | |
3039 | |
2381 | #if EV_USE_IOCP |
3040 | #if EV_USE_IOCP |
2382 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3041 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2383 | #endif |
3042 | #endif |
2384 | #if EV_USE_PORT |
3043 | #if EV_USE_PORT |
2385 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3044 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2386 | #endif |
3045 | #endif |
2387 | #if EV_USE_KQUEUE |
3046 | #if EV_USE_KQUEUE |
2388 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3047 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3048 | #endif |
|
|
3049 | #if EV_USE_LINUXAIO |
|
|
3050 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2389 | #endif |
3051 | #endif |
2390 | #if EV_USE_EPOLL |
3052 | #if EV_USE_EPOLL |
2391 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3053 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2392 | #endif |
3054 | #endif |
2393 | #if EV_USE_POLL |
3055 | #if EV_USE_POLL |
2394 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3056 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2395 | #endif |
3057 | #endif |
2396 | #if EV_USE_SELECT |
3058 | #if EV_USE_SELECT |
2397 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3059 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2398 | #endif |
3060 | #endif |
2399 | |
3061 | |
2400 | for (i = NUMPRI; i--; ) |
3062 | for (i = NUMPRI; i--; ) |
2401 | { |
3063 | { |
2402 | array_free (pending, [i]); |
3064 | array_free (pending, [i]); |
… | |
… | |
2444 | |
3106 | |
2445 | inline_size void |
3107 | inline_size void |
2446 | loop_fork (EV_P) |
3108 | loop_fork (EV_P) |
2447 | { |
3109 | { |
2448 | #if EV_USE_PORT |
3110 | #if EV_USE_PORT |
2449 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3111 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2450 | #endif |
3112 | #endif |
2451 | #if EV_USE_KQUEUE |
3113 | #if EV_USE_KQUEUE |
2452 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3114 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3115 | #endif |
|
|
3116 | #if EV_USE_LINUXAIO |
|
|
3117 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2453 | #endif |
3118 | #endif |
2454 | #if EV_USE_EPOLL |
3119 | #if EV_USE_EPOLL |
2455 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3120 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2456 | #endif |
3121 | #endif |
2457 | #if EV_USE_INOTIFY |
3122 | #if EV_USE_INOTIFY |
2458 | infy_fork (EV_A); |
3123 | infy_fork (EV_A); |
2459 | #endif |
3124 | #endif |
2460 | |
3125 | |
|
|
3126 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2461 | if (ev_is_active (&pipe_w)) |
3127 | if (ev_is_active (&pipe_w) && postfork != 2) |
2462 | { |
3128 | { |
2463 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3129 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2464 | |
3130 | |
2465 | ev_ref (EV_A); |
3131 | ev_ref (EV_A); |
2466 | ev_io_stop (EV_A_ &pipe_w); |
3132 | ev_io_stop (EV_A_ &pipe_w); |
2467 | |
3133 | |
2468 | #if EV_USE_EVENTFD |
|
|
2469 | if (evfd >= 0) |
|
|
2470 | close (evfd); |
|
|
2471 | #endif |
|
|
2472 | |
|
|
2473 | if (evpipe [0] >= 0) |
3134 | if (evpipe [0] >= 0) |
2474 | { |
|
|
2475 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3135 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2476 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2477 | } |
|
|
2478 | |
3136 | |
2479 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2480 | evpipe_init (EV_A); |
3137 | evpipe_init (EV_A); |
2481 | /* now iterate over everything, in case we missed something */ |
3138 | /* iterate over everything, in case we missed something before */ |
2482 | pipecb (EV_A_ &pipe_w, EV_READ); |
3139 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2483 | #endif |
|
|
2484 | } |
3140 | } |
|
|
3141 | #endif |
2485 | |
3142 | |
2486 | postfork = 0; |
3143 | postfork = 0; |
2487 | } |
3144 | } |
2488 | |
3145 | |
2489 | #if EV_MULTIPLICITY |
3146 | #if EV_MULTIPLICITY |
2490 | |
3147 | |
|
|
3148 | ecb_cold |
2491 | struct ev_loop * ecb_cold |
3149 | struct ev_loop * |
2492 | ev_loop_new (unsigned int flags) EV_THROW |
3150 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2493 | { |
3151 | { |
2494 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3152 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2495 | |
3153 | |
2496 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3154 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2497 | loop_init (EV_A_ flags); |
3155 | loop_init (EV_A_ flags); |
… | |
… | |
2504 | } |
3162 | } |
2505 | |
3163 | |
2506 | #endif /* multiplicity */ |
3164 | #endif /* multiplicity */ |
2507 | |
3165 | |
2508 | #if EV_VERIFY |
3166 | #if EV_VERIFY |
2509 | static void noinline ecb_cold |
3167 | noinline ecb_cold |
|
|
3168 | static void |
2510 | verify_watcher (EV_P_ W w) |
3169 | verify_watcher (EV_P_ W w) |
2511 | { |
3170 | { |
2512 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3171 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2513 | |
3172 | |
2514 | if (w->pending) |
3173 | if (w->pending) |
2515 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3174 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2516 | } |
3175 | } |
2517 | |
3176 | |
2518 | static void noinline ecb_cold |
3177 | noinline ecb_cold |
|
|
3178 | static void |
2519 | verify_heap (EV_P_ ANHE *heap, int N) |
3179 | verify_heap (EV_P_ ANHE *heap, int N) |
2520 | { |
3180 | { |
2521 | int i; |
3181 | int i; |
2522 | |
3182 | |
2523 | for (i = HEAP0; i < N + HEAP0; ++i) |
3183 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2528 | |
3188 | |
2529 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3189 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2530 | } |
3190 | } |
2531 | } |
3191 | } |
2532 | |
3192 | |
2533 | static void noinline ecb_cold |
3193 | noinline ecb_cold |
|
|
3194 | static void |
2534 | array_verify (EV_P_ W *ws, int cnt) |
3195 | array_verify (EV_P_ W *ws, int cnt) |
2535 | { |
3196 | { |
2536 | while (cnt--) |
3197 | while (cnt--) |
2537 | { |
3198 | { |
2538 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3199 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2541 | } |
3202 | } |
2542 | #endif |
3203 | #endif |
2543 | |
3204 | |
2544 | #if EV_FEATURE_API |
3205 | #if EV_FEATURE_API |
2545 | void ecb_cold |
3206 | void ecb_cold |
2546 | ev_verify (EV_P) EV_THROW |
3207 | ev_verify (EV_P) EV_NOEXCEPT |
2547 | { |
3208 | { |
2548 | #if EV_VERIFY |
3209 | #if EV_VERIFY |
2549 | int i; |
3210 | int i; |
2550 | WL w; |
3211 | WL w, w2; |
2551 | |
3212 | |
2552 | assert (activecnt >= -1); |
3213 | assert (activecnt >= -1); |
2553 | |
3214 | |
2554 | assert (fdchangemax >= fdchangecnt); |
3215 | assert (fdchangemax >= fdchangecnt); |
2555 | for (i = 0; i < fdchangecnt; ++i) |
3216 | for (i = 0; i < fdchangecnt; ++i) |
2556 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3217 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2557 | |
3218 | |
2558 | assert (anfdmax >= 0); |
3219 | assert (anfdmax >= 0); |
2559 | for (i = 0; i < anfdmax; ++i) |
3220 | for (i = 0; i < anfdmax; ++i) |
|
|
3221 | { |
|
|
3222 | int j = 0; |
|
|
3223 | |
2560 | for (w = anfds [i].head; w; w = w->next) |
3224 | for (w = w2 = anfds [i].head; w; w = w->next) |
2561 | { |
3225 | { |
2562 | verify_watcher (EV_A_ (W)w); |
3226 | verify_watcher (EV_A_ (W)w); |
|
|
3227 | |
|
|
3228 | if (j++ & 1) |
|
|
3229 | { |
|
|
3230 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3231 | w2 = w2->next; |
|
|
3232 | } |
|
|
3233 | |
2563 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3234 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2564 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3235 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2565 | } |
3236 | } |
|
|
3237 | } |
2566 | |
3238 | |
2567 | assert (timermax >= timercnt); |
3239 | assert (timermax >= timercnt); |
2568 | verify_heap (EV_A_ timers, timercnt); |
3240 | verify_heap (EV_A_ timers, timercnt); |
2569 | |
3241 | |
2570 | #if EV_PERIODIC_ENABLE |
3242 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2616 | #endif |
3288 | #endif |
2617 | } |
3289 | } |
2618 | #endif |
3290 | #endif |
2619 | |
3291 | |
2620 | #if EV_MULTIPLICITY |
3292 | #if EV_MULTIPLICITY |
|
|
3293 | ecb_cold |
2621 | struct ev_loop * ecb_cold |
3294 | struct ev_loop * |
2622 | #else |
3295 | #else |
2623 | int |
3296 | int |
2624 | #endif |
3297 | #endif |
2625 | ev_default_loop (unsigned int flags) EV_THROW |
3298 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2626 | { |
3299 | { |
2627 | if (!ev_default_loop_ptr) |
3300 | if (!ev_default_loop_ptr) |
2628 | { |
3301 | { |
2629 | #if EV_MULTIPLICITY |
3302 | #if EV_MULTIPLICITY |
2630 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3303 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2649 | |
3322 | |
2650 | return ev_default_loop_ptr; |
3323 | return ev_default_loop_ptr; |
2651 | } |
3324 | } |
2652 | |
3325 | |
2653 | void |
3326 | void |
2654 | ev_loop_fork (EV_P) EV_THROW |
3327 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2655 | { |
3328 | { |
2656 | postfork = 1; /* must be in line with ev_default_fork */ |
3329 | postfork = 1; |
2657 | } |
3330 | } |
2658 | |
3331 | |
2659 | /*****************************************************************************/ |
3332 | /*****************************************************************************/ |
2660 | |
3333 | |
2661 | void |
3334 | void |
… | |
… | |
2663 | { |
3336 | { |
2664 | EV_CB_INVOKE ((W)w, revents); |
3337 | EV_CB_INVOKE ((W)w, revents); |
2665 | } |
3338 | } |
2666 | |
3339 | |
2667 | unsigned int |
3340 | unsigned int |
2668 | ev_pending_count (EV_P) EV_THROW |
3341 | ev_pending_count (EV_P) EV_NOEXCEPT |
2669 | { |
3342 | { |
2670 | int pri; |
3343 | int pri; |
2671 | unsigned int count = 0; |
3344 | unsigned int count = 0; |
2672 | |
3345 | |
2673 | for (pri = NUMPRI; pri--; ) |
3346 | for (pri = NUMPRI; pri--; ) |
2674 | count += pendingcnt [pri]; |
3347 | count += pendingcnt [pri]; |
2675 | |
3348 | |
2676 | return count; |
3349 | return count; |
2677 | } |
3350 | } |
2678 | |
3351 | |
2679 | void noinline |
3352 | noinline |
|
|
3353 | void |
2680 | ev_invoke_pending (EV_P) |
3354 | ev_invoke_pending (EV_P) |
2681 | { |
3355 | { |
2682 | int pri; |
3356 | pendingpri = NUMPRI; |
2683 | |
3357 | |
2684 | for (pri = NUMPRI; pri--; ) |
3358 | do |
|
|
3359 | { |
|
|
3360 | --pendingpri; |
|
|
3361 | |
|
|
3362 | /* pendingpri possibly gets modified in the inner loop */ |
2685 | while (pendingcnt [pri]) |
3363 | while (pendingcnt [pendingpri]) |
2686 | { |
3364 | { |
2687 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3365 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2688 | |
3366 | |
2689 | p->w->pending = 0; |
3367 | p->w->pending = 0; |
2690 | EV_CB_INVOKE (p->w, p->events); |
3368 | EV_CB_INVOKE (p->w, p->events); |
2691 | EV_FREQUENT_CHECK; |
3369 | EV_FREQUENT_CHECK; |
2692 | } |
3370 | } |
|
|
3371 | } |
|
|
3372 | while (pendingpri); |
2693 | } |
3373 | } |
2694 | |
3374 | |
2695 | #if EV_IDLE_ENABLE |
3375 | #if EV_IDLE_ENABLE |
2696 | /* make idle watchers pending. this handles the "call-idle */ |
3376 | /* make idle watchers pending. this handles the "call-idle */ |
2697 | /* only when higher priorities are idle" logic */ |
3377 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2755 | } |
3435 | } |
2756 | } |
3436 | } |
2757 | |
3437 | |
2758 | #if EV_PERIODIC_ENABLE |
3438 | #if EV_PERIODIC_ENABLE |
2759 | |
3439 | |
2760 | static void noinline |
3440 | noinline |
|
|
3441 | static void |
2761 | periodic_recalc (EV_P_ ev_periodic *w) |
3442 | periodic_recalc (EV_P_ ev_periodic *w) |
2762 | { |
3443 | { |
2763 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3444 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2764 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3445 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2765 | |
3446 | |
… | |
… | |
2787 | { |
3468 | { |
2788 | EV_FREQUENT_CHECK; |
3469 | EV_FREQUENT_CHECK; |
2789 | |
3470 | |
2790 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3471 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2791 | { |
3472 | { |
2792 | int feed_count = 0; |
|
|
2793 | |
|
|
2794 | do |
3473 | do |
2795 | { |
3474 | { |
2796 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3475 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2797 | |
3476 | |
2798 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3477 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2825 | } |
3504 | } |
2826 | } |
3505 | } |
2827 | |
3506 | |
2828 | /* simply recalculate all periodics */ |
3507 | /* simply recalculate all periodics */ |
2829 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3508 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2830 | static void noinline ecb_cold |
3509 | noinline ecb_cold |
|
|
3510 | static void |
2831 | periodics_reschedule (EV_P) |
3511 | periodics_reschedule (EV_P) |
2832 | { |
3512 | { |
2833 | int i; |
3513 | int i; |
2834 | |
3514 | |
2835 | /* adjust periodics after time jump */ |
3515 | /* adjust periodics after time jump */ |
… | |
… | |
2848 | reheap (periodics, periodiccnt); |
3528 | reheap (periodics, periodiccnt); |
2849 | } |
3529 | } |
2850 | #endif |
3530 | #endif |
2851 | |
3531 | |
2852 | /* adjust all timers by a given offset */ |
3532 | /* adjust all timers by a given offset */ |
2853 | static void noinline ecb_cold |
3533 | noinline ecb_cold |
|
|
3534 | static void |
2854 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3535 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2855 | { |
3536 | { |
2856 | int i; |
3537 | int i; |
2857 | |
3538 | |
2858 | for (i = 0; i < timercnt; ++i) |
3539 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3057 | backend_poll (EV_A_ waittime); |
3738 | backend_poll (EV_A_ waittime); |
3058 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3739 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3059 | |
3740 | |
3060 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3741 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3061 | |
3742 | |
|
|
3743 | ECB_MEMORY_FENCE_ACQUIRE; |
3062 | if (pipe_write_skipped) |
3744 | if (pipe_write_skipped) |
3063 | { |
3745 | { |
3064 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3746 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3065 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3747 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3066 | } |
3748 | } |
… | |
… | |
3104 | |
3786 | |
3105 | return activecnt; |
3787 | return activecnt; |
3106 | } |
3788 | } |
3107 | |
3789 | |
3108 | void |
3790 | void |
3109 | ev_break (EV_P_ int how) EV_THROW |
3791 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3110 | { |
3792 | { |
3111 | loop_done = how; |
3793 | loop_done = how; |
3112 | } |
3794 | } |
3113 | |
3795 | |
3114 | void |
3796 | void |
3115 | ev_ref (EV_P) EV_THROW |
3797 | ev_ref (EV_P) EV_NOEXCEPT |
3116 | { |
3798 | { |
3117 | ++activecnt; |
3799 | ++activecnt; |
3118 | } |
3800 | } |
3119 | |
3801 | |
3120 | void |
3802 | void |
3121 | ev_unref (EV_P) EV_THROW |
3803 | ev_unref (EV_P) EV_NOEXCEPT |
3122 | { |
3804 | { |
3123 | --activecnt; |
3805 | --activecnt; |
3124 | } |
3806 | } |
3125 | |
3807 | |
3126 | void |
3808 | void |
3127 | ev_now_update (EV_P) EV_THROW |
3809 | ev_now_update (EV_P) EV_NOEXCEPT |
3128 | { |
3810 | { |
3129 | time_update (EV_A_ 1e100); |
3811 | time_update (EV_A_ 1e100); |
3130 | } |
3812 | } |
3131 | |
3813 | |
3132 | void |
3814 | void |
3133 | ev_suspend (EV_P) EV_THROW |
3815 | ev_suspend (EV_P) EV_NOEXCEPT |
3134 | { |
3816 | { |
3135 | ev_now_update (EV_A); |
3817 | ev_now_update (EV_A); |
3136 | } |
3818 | } |
3137 | |
3819 | |
3138 | void |
3820 | void |
3139 | ev_resume (EV_P) EV_THROW |
3821 | ev_resume (EV_P) EV_NOEXCEPT |
3140 | { |
3822 | { |
3141 | ev_tstamp mn_prev = mn_now; |
3823 | ev_tstamp mn_prev = mn_now; |
3142 | |
3824 | |
3143 | ev_now_update (EV_A); |
3825 | ev_now_update (EV_A); |
3144 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3826 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3183 | w->pending = 0; |
3865 | w->pending = 0; |
3184 | } |
3866 | } |
3185 | } |
3867 | } |
3186 | |
3868 | |
3187 | int |
3869 | int |
3188 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3870 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3189 | { |
3871 | { |
3190 | W w_ = (W)w; |
3872 | W w_ = (W)w; |
3191 | int pending = w_->pending; |
3873 | int pending = w_->pending; |
3192 | |
3874 | |
3193 | if (expect_true (pending)) |
3875 | if (expect_true (pending)) |
… | |
… | |
3225 | w->active = 0; |
3907 | w->active = 0; |
3226 | } |
3908 | } |
3227 | |
3909 | |
3228 | /*****************************************************************************/ |
3910 | /*****************************************************************************/ |
3229 | |
3911 | |
3230 | void noinline |
3912 | noinline |
|
|
3913 | void |
3231 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3914 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3232 | { |
3915 | { |
3233 | int fd = w->fd; |
3916 | int fd = w->fd; |
3234 | |
3917 | |
3235 | if (expect_false (ev_is_active (w))) |
3918 | if (expect_false (ev_is_active (w))) |
3236 | return; |
3919 | return; |
… | |
… | |
3239 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3922 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3240 | |
3923 | |
3241 | EV_FREQUENT_CHECK; |
3924 | EV_FREQUENT_CHECK; |
3242 | |
3925 | |
3243 | ev_start (EV_A_ (W)w, 1); |
3926 | ev_start (EV_A_ (W)w, 1); |
3244 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3927 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3245 | wlist_add (&anfds[fd].head, (WL)w); |
3928 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
3929 | |
|
|
3930 | /* common bug, apparently */ |
|
|
3931 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3246 | |
3932 | |
3247 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3933 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3248 | w->events &= ~EV__IOFDSET; |
3934 | w->events &= ~EV__IOFDSET; |
3249 | |
3935 | |
3250 | EV_FREQUENT_CHECK; |
3936 | EV_FREQUENT_CHECK; |
3251 | } |
3937 | } |
3252 | |
3938 | |
3253 | void noinline |
3939 | noinline |
|
|
3940 | void |
3254 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3941 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3255 | { |
3942 | { |
3256 | clear_pending (EV_A_ (W)w); |
3943 | clear_pending (EV_A_ (W)w); |
3257 | if (expect_false (!ev_is_active (w))) |
3944 | if (expect_false (!ev_is_active (w))) |
3258 | return; |
3945 | return; |
3259 | |
3946 | |
… | |
… | |
3267 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3954 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3268 | |
3955 | |
3269 | EV_FREQUENT_CHECK; |
3956 | EV_FREQUENT_CHECK; |
3270 | } |
3957 | } |
3271 | |
3958 | |
3272 | void noinline |
3959 | noinline |
|
|
3960 | void |
3273 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3961 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3274 | { |
3962 | { |
3275 | if (expect_false (ev_is_active (w))) |
3963 | if (expect_false (ev_is_active (w))) |
3276 | return; |
3964 | return; |
3277 | |
3965 | |
3278 | ev_at (w) += mn_now; |
3966 | ev_at (w) += mn_now; |
… | |
… | |
3281 | |
3969 | |
3282 | EV_FREQUENT_CHECK; |
3970 | EV_FREQUENT_CHECK; |
3283 | |
3971 | |
3284 | ++timercnt; |
3972 | ++timercnt; |
3285 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3973 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3286 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
3974 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3287 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3975 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3288 | ANHE_at_cache (timers [ev_active (w)]); |
3976 | ANHE_at_cache (timers [ev_active (w)]); |
3289 | upheap (timers, ev_active (w)); |
3977 | upheap (timers, ev_active (w)); |
3290 | |
3978 | |
3291 | EV_FREQUENT_CHECK; |
3979 | EV_FREQUENT_CHECK; |
3292 | |
3980 | |
3293 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3981 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3294 | } |
3982 | } |
3295 | |
3983 | |
3296 | void noinline |
3984 | noinline |
|
|
3985 | void |
3297 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3986 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3298 | { |
3987 | { |
3299 | clear_pending (EV_A_ (W)w); |
3988 | clear_pending (EV_A_ (W)w); |
3300 | if (expect_false (!ev_is_active (w))) |
3989 | if (expect_false (!ev_is_active (w))) |
3301 | return; |
3990 | return; |
3302 | |
3991 | |
… | |
… | |
3321 | ev_stop (EV_A_ (W)w); |
4010 | ev_stop (EV_A_ (W)w); |
3322 | |
4011 | |
3323 | EV_FREQUENT_CHECK; |
4012 | EV_FREQUENT_CHECK; |
3324 | } |
4013 | } |
3325 | |
4014 | |
3326 | void noinline |
4015 | noinline |
|
|
4016 | void |
3327 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4017 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3328 | { |
4018 | { |
3329 | EV_FREQUENT_CHECK; |
4019 | EV_FREQUENT_CHECK; |
3330 | |
4020 | |
3331 | clear_pending (EV_A_ (W)w); |
4021 | clear_pending (EV_A_ (W)w); |
3332 | |
4022 | |
… | |
… | |
3349 | |
4039 | |
3350 | EV_FREQUENT_CHECK; |
4040 | EV_FREQUENT_CHECK; |
3351 | } |
4041 | } |
3352 | |
4042 | |
3353 | ev_tstamp |
4043 | ev_tstamp |
3354 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4044 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3355 | { |
4045 | { |
3356 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4046 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3357 | } |
4047 | } |
3358 | |
4048 | |
3359 | #if EV_PERIODIC_ENABLE |
4049 | #if EV_PERIODIC_ENABLE |
3360 | void noinline |
4050 | noinline |
|
|
4051 | void |
3361 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4052 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3362 | { |
4053 | { |
3363 | if (expect_false (ev_is_active (w))) |
4054 | if (expect_false (ev_is_active (w))) |
3364 | return; |
4055 | return; |
3365 | |
4056 | |
3366 | if (w->reschedule_cb) |
4057 | if (w->reschedule_cb) |
… | |
… | |
3375 | |
4066 | |
3376 | EV_FREQUENT_CHECK; |
4067 | EV_FREQUENT_CHECK; |
3377 | |
4068 | |
3378 | ++periodiccnt; |
4069 | ++periodiccnt; |
3379 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4070 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3380 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4071 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3381 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4072 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3382 | ANHE_at_cache (periodics [ev_active (w)]); |
4073 | ANHE_at_cache (periodics [ev_active (w)]); |
3383 | upheap (periodics, ev_active (w)); |
4074 | upheap (periodics, ev_active (w)); |
3384 | |
4075 | |
3385 | EV_FREQUENT_CHECK; |
4076 | EV_FREQUENT_CHECK; |
3386 | |
4077 | |
3387 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4078 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3388 | } |
4079 | } |
3389 | |
4080 | |
3390 | void noinline |
4081 | noinline |
|
|
4082 | void |
3391 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4083 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3392 | { |
4084 | { |
3393 | clear_pending (EV_A_ (W)w); |
4085 | clear_pending (EV_A_ (W)w); |
3394 | if (expect_false (!ev_is_active (w))) |
4086 | if (expect_false (!ev_is_active (w))) |
3395 | return; |
4087 | return; |
3396 | |
4088 | |
… | |
… | |
3413 | ev_stop (EV_A_ (W)w); |
4105 | ev_stop (EV_A_ (W)w); |
3414 | |
4106 | |
3415 | EV_FREQUENT_CHECK; |
4107 | EV_FREQUENT_CHECK; |
3416 | } |
4108 | } |
3417 | |
4109 | |
3418 | void noinline |
4110 | noinline |
|
|
4111 | void |
3419 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4112 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3420 | { |
4113 | { |
3421 | /* TODO: use adjustheap and recalculation */ |
4114 | /* TODO: use adjustheap and recalculation */ |
3422 | ev_periodic_stop (EV_A_ w); |
4115 | ev_periodic_stop (EV_A_ w); |
3423 | ev_periodic_start (EV_A_ w); |
4116 | ev_periodic_start (EV_A_ w); |
3424 | } |
4117 | } |
… | |
… | |
3428 | # define SA_RESTART 0 |
4121 | # define SA_RESTART 0 |
3429 | #endif |
4122 | #endif |
3430 | |
4123 | |
3431 | #if EV_SIGNAL_ENABLE |
4124 | #if EV_SIGNAL_ENABLE |
3432 | |
4125 | |
3433 | void noinline |
4126 | noinline |
|
|
4127 | void |
3434 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4128 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3435 | { |
4129 | { |
3436 | if (expect_false (ev_is_active (w))) |
4130 | if (expect_false (ev_is_active (w))) |
3437 | return; |
4131 | return; |
3438 | |
4132 | |
3439 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4133 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3441 | #if EV_MULTIPLICITY |
4135 | #if EV_MULTIPLICITY |
3442 | assert (("libev: a signal must not be attached to two different loops", |
4136 | assert (("libev: a signal must not be attached to two different loops", |
3443 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4137 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3444 | |
4138 | |
3445 | signals [w->signum - 1].loop = EV_A; |
4139 | signals [w->signum - 1].loop = EV_A; |
|
|
4140 | ECB_MEMORY_FENCE_RELEASE; |
3446 | #endif |
4141 | #endif |
3447 | |
4142 | |
3448 | EV_FREQUENT_CHECK; |
4143 | EV_FREQUENT_CHECK; |
3449 | |
4144 | |
3450 | #if EV_USE_SIGNALFD |
4145 | #if EV_USE_SIGNALFD |
… | |
… | |
3509 | } |
4204 | } |
3510 | |
4205 | |
3511 | EV_FREQUENT_CHECK; |
4206 | EV_FREQUENT_CHECK; |
3512 | } |
4207 | } |
3513 | |
4208 | |
3514 | void noinline |
4209 | noinline |
|
|
4210 | void |
3515 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4211 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3516 | { |
4212 | { |
3517 | clear_pending (EV_A_ (W)w); |
4213 | clear_pending (EV_A_ (W)w); |
3518 | if (expect_false (!ev_is_active (w))) |
4214 | if (expect_false (!ev_is_active (w))) |
3519 | return; |
4215 | return; |
3520 | |
4216 | |
… | |
… | |
3551 | #endif |
4247 | #endif |
3552 | |
4248 | |
3553 | #if EV_CHILD_ENABLE |
4249 | #if EV_CHILD_ENABLE |
3554 | |
4250 | |
3555 | void |
4251 | void |
3556 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4252 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3557 | { |
4253 | { |
3558 | #if EV_MULTIPLICITY |
4254 | #if EV_MULTIPLICITY |
3559 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4255 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3560 | #endif |
4256 | #endif |
3561 | if (expect_false (ev_is_active (w))) |
4257 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3568 | |
4264 | |
3569 | EV_FREQUENT_CHECK; |
4265 | EV_FREQUENT_CHECK; |
3570 | } |
4266 | } |
3571 | |
4267 | |
3572 | void |
4268 | void |
3573 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4269 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3574 | { |
4270 | { |
3575 | clear_pending (EV_A_ (W)w); |
4271 | clear_pending (EV_A_ (W)w); |
3576 | if (expect_false (!ev_is_active (w))) |
4272 | if (expect_false (!ev_is_active (w))) |
3577 | return; |
4273 | return; |
3578 | |
4274 | |
… | |
… | |
3595 | |
4291 | |
3596 | #define DEF_STAT_INTERVAL 5.0074891 |
4292 | #define DEF_STAT_INTERVAL 5.0074891 |
3597 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4293 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3598 | #define MIN_STAT_INTERVAL 0.1074891 |
4294 | #define MIN_STAT_INTERVAL 0.1074891 |
3599 | |
4295 | |
3600 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4296 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3601 | |
4297 | |
3602 | #if EV_USE_INOTIFY |
4298 | #if EV_USE_INOTIFY |
3603 | |
4299 | |
3604 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4300 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3605 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4301 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3606 | |
4302 | |
3607 | static void noinline |
4303 | noinline |
|
|
4304 | static void |
3608 | infy_add (EV_P_ ev_stat *w) |
4305 | infy_add (EV_P_ ev_stat *w) |
3609 | { |
4306 | { |
3610 | 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); |
4307 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4308 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4309 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4310 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3611 | |
4311 | |
3612 | if (w->wd >= 0) |
4312 | if (w->wd >= 0) |
3613 | { |
4313 | { |
3614 | struct statfs sfs; |
4314 | struct statfs sfs; |
3615 | |
4315 | |
… | |
… | |
3619 | |
4319 | |
3620 | if (!fs_2625) |
4320 | if (!fs_2625) |
3621 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4321 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3622 | else if (!statfs (w->path, &sfs) |
4322 | else if (!statfs (w->path, &sfs) |
3623 | && (sfs.f_type == 0x1373 /* devfs */ |
4323 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4324 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4325 | || sfs.f_type == 0x4d44 /* msdos */ |
3624 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4326 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4327 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4328 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4329 | || sfs.f_type == 0x5346544e /* ntfs */ |
3625 | || sfs.f_type == 0x3153464a /* jfs */ |
4330 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4331 | || sfs.f_type == 0x9123683e /* btrfs */ |
3626 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4332 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3627 | || sfs.f_type == 0x01021994 /* tempfs */ |
4333 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3628 | || sfs.f_type == 0x58465342 /* xfs */)) |
4334 | || sfs.f_type == 0x58465342 /* xfs */)) |
3629 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4335 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3630 | else |
4336 | else |
3631 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4337 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3632 | } |
4338 | } |
… | |
… | |
3667 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4373 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3668 | ev_timer_again (EV_A_ &w->timer); |
4374 | ev_timer_again (EV_A_ &w->timer); |
3669 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4375 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3670 | } |
4376 | } |
3671 | |
4377 | |
3672 | static void noinline |
4378 | noinline |
|
|
4379 | static void |
3673 | infy_del (EV_P_ ev_stat *w) |
4380 | infy_del (EV_P_ ev_stat *w) |
3674 | { |
4381 | { |
3675 | int slot; |
4382 | int slot; |
3676 | int wd = w->wd; |
4383 | int wd = w->wd; |
3677 | |
4384 | |
… | |
… | |
3684 | |
4391 | |
3685 | /* remove this watcher, if others are watching it, they will rearm */ |
4392 | /* remove this watcher, if others are watching it, they will rearm */ |
3686 | inotify_rm_watch (fs_fd, wd); |
4393 | inotify_rm_watch (fs_fd, wd); |
3687 | } |
4394 | } |
3688 | |
4395 | |
3689 | static void noinline |
4396 | noinline |
|
|
4397 | static void |
3690 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4398 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3691 | { |
4399 | { |
3692 | if (slot < 0) |
4400 | if (slot < 0) |
3693 | /* overflow, need to check for all hash slots */ |
4401 | /* overflow, need to check for all hash slots */ |
3694 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4402 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3730 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4438 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3731 | ofs += sizeof (struct inotify_event) + ev->len; |
4439 | ofs += sizeof (struct inotify_event) + ev->len; |
3732 | } |
4440 | } |
3733 | } |
4441 | } |
3734 | |
4442 | |
3735 | inline_size void ecb_cold |
4443 | inline_size ecb_cold |
|
|
4444 | void |
3736 | ev_check_2625 (EV_P) |
4445 | ev_check_2625 (EV_P) |
3737 | { |
4446 | { |
3738 | /* kernels < 2.6.25 are borked |
4447 | /* kernels < 2.6.25 are borked |
3739 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4448 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3740 | */ |
4449 | */ |
… | |
… | |
3830 | #else |
4539 | #else |
3831 | # define EV_LSTAT(p,b) lstat (p, b) |
4540 | # define EV_LSTAT(p,b) lstat (p, b) |
3832 | #endif |
4541 | #endif |
3833 | |
4542 | |
3834 | void |
4543 | void |
3835 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4544 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3836 | { |
4545 | { |
3837 | if (lstat (w->path, &w->attr) < 0) |
4546 | if (lstat (w->path, &w->attr) < 0) |
3838 | w->attr.st_nlink = 0; |
4547 | w->attr.st_nlink = 0; |
3839 | else if (!w->attr.st_nlink) |
4548 | else if (!w->attr.st_nlink) |
3840 | w->attr.st_nlink = 1; |
4549 | w->attr.st_nlink = 1; |
3841 | } |
4550 | } |
3842 | |
4551 | |
3843 | static void noinline |
4552 | noinline |
|
|
4553 | static void |
3844 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4554 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3845 | { |
4555 | { |
3846 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4556 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3847 | |
4557 | |
3848 | ev_statdata prev = w->attr; |
4558 | ev_statdata prev = w->attr; |
… | |
… | |
3879 | ev_feed_event (EV_A_ w, EV_STAT); |
4589 | ev_feed_event (EV_A_ w, EV_STAT); |
3880 | } |
4590 | } |
3881 | } |
4591 | } |
3882 | |
4592 | |
3883 | void |
4593 | void |
3884 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4594 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3885 | { |
4595 | { |
3886 | if (expect_false (ev_is_active (w))) |
4596 | if (expect_false (ev_is_active (w))) |
3887 | return; |
4597 | return; |
3888 | |
4598 | |
3889 | ev_stat_stat (EV_A_ w); |
4599 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3910 | |
4620 | |
3911 | EV_FREQUENT_CHECK; |
4621 | EV_FREQUENT_CHECK; |
3912 | } |
4622 | } |
3913 | |
4623 | |
3914 | void |
4624 | void |
3915 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4625 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3916 | { |
4626 | { |
3917 | clear_pending (EV_A_ (W)w); |
4627 | clear_pending (EV_A_ (W)w); |
3918 | if (expect_false (!ev_is_active (w))) |
4628 | if (expect_false (!ev_is_active (w))) |
3919 | return; |
4629 | return; |
3920 | |
4630 | |
… | |
… | |
3936 | } |
4646 | } |
3937 | #endif |
4647 | #endif |
3938 | |
4648 | |
3939 | #if EV_IDLE_ENABLE |
4649 | #if EV_IDLE_ENABLE |
3940 | void |
4650 | void |
3941 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4651 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3942 | { |
4652 | { |
3943 | if (expect_false (ev_is_active (w))) |
4653 | if (expect_false (ev_is_active (w))) |
3944 | return; |
4654 | return; |
3945 | |
4655 | |
3946 | pri_adjust (EV_A_ (W)w); |
4656 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3951 | int active = ++idlecnt [ABSPRI (w)]; |
4661 | int active = ++idlecnt [ABSPRI (w)]; |
3952 | |
4662 | |
3953 | ++idleall; |
4663 | ++idleall; |
3954 | ev_start (EV_A_ (W)w, active); |
4664 | ev_start (EV_A_ (W)w, active); |
3955 | |
4665 | |
3956 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4666 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3957 | idles [ABSPRI (w)][active - 1] = w; |
4667 | idles [ABSPRI (w)][active - 1] = w; |
3958 | } |
4668 | } |
3959 | |
4669 | |
3960 | EV_FREQUENT_CHECK; |
4670 | EV_FREQUENT_CHECK; |
3961 | } |
4671 | } |
3962 | |
4672 | |
3963 | void |
4673 | void |
3964 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4674 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3965 | { |
4675 | { |
3966 | clear_pending (EV_A_ (W)w); |
4676 | clear_pending (EV_A_ (W)w); |
3967 | if (expect_false (!ev_is_active (w))) |
4677 | if (expect_false (!ev_is_active (w))) |
3968 | return; |
4678 | return; |
3969 | |
4679 | |
… | |
… | |
3983 | } |
4693 | } |
3984 | #endif |
4694 | #endif |
3985 | |
4695 | |
3986 | #if EV_PREPARE_ENABLE |
4696 | #if EV_PREPARE_ENABLE |
3987 | void |
4697 | void |
3988 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4698 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3989 | { |
4699 | { |
3990 | if (expect_false (ev_is_active (w))) |
4700 | if (expect_false (ev_is_active (w))) |
3991 | return; |
4701 | return; |
3992 | |
4702 | |
3993 | EV_FREQUENT_CHECK; |
4703 | EV_FREQUENT_CHECK; |
3994 | |
4704 | |
3995 | ev_start (EV_A_ (W)w, ++preparecnt); |
4705 | ev_start (EV_A_ (W)w, ++preparecnt); |
3996 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4706 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3997 | prepares [preparecnt - 1] = w; |
4707 | prepares [preparecnt - 1] = w; |
3998 | |
4708 | |
3999 | EV_FREQUENT_CHECK; |
4709 | EV_FREQUENT_CHECK; |
4000 | } |
4710 | } |
4001 | |
4711 | |
4002 | void |
4712 | void |
4003 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4713 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4004 | { |
4714 | { |
4005 | clear_pending (EV_A_ (W)w); |
4715 | clear_pending (EV_A_ (W)w); |
4006 | if (expect_false (!ev_is_active (w))) |
4716 | if (expect_false (!ev_is_active (w))) |
4007 | return; |
4717 | return; |
4008 | |
4718 | |
… | |
… | |
4021 | } |
4731 | } |
4022 | #endif |
4732 | #endif |
4023 | |
4733 | |
4024 | #if EV_CHECK_ENABLE |
4734 | #if EV_CHECK_ENABLE |
4025 | void |
4735 | void |
4026 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4736 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4027 | { |
4737 | { |
4028 | if (expect_false (ev_is_active (w))) |
4738 | if (expect_false (ev_is_active (w))) |
4029 | return; |
4739 | return; |
4030 | |
4740 | |
4031 | EV_FREQUENT_CHECK; |
4741 | EV_FREQUENT_CHECK; |
4032 | |
4742 | |
4033 | ev_start (EV_A_ (W)w, ++checkcnt); |
4743 | ev_start (EV_A_ (W)w, ++checkcnt); |
4034 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4744 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4035 | checks [checkcnt - 1] = w; |
4745 | checks [checkcnt - 1] = w; |
4036 | |
4746 | |
4037 | EV_FREQUENT_CHECK; |
4747 | EV_FREQUENT_CHECK; |
4038 | } |
4748 | } |
4039 | |
4749 | |
4040 | void |
4750 | void |
4041 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4751 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4042 | { |
4752 | { |
4043 | clear_pending (EV_A_ (W)w); |
4753 | clear_pending (EV_A_ (W)w); |
4044 | if (expect_false (!ev_is_active (w))) |
4754 | if (expect_false (!ev_is_active (w))) |
4045 | return; |
4755 | return; |
4046 | |
4756 | |
… | |
… | |
4058 | EV_FREQUENT_CHECK; |
4768 | EV_FREQUENT_CHECK; |
4059 | } |
4769 | } |
4060 | #endif |
4770 | #endif |
4061 | |
4771 | |
4062 | #if EV_EMBED_ENABLE |
4772 | #if EV_EMBED_ENABLE |
4063 | void noinline |
4773 | noinline |
|
|
4774 | void |
4064 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4775 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4065 | { |
4776 | { |
4066 | ev_run (w->other, EVRUN_NOWAIT); |
4777 | ev_run (w->other, EVRUN_NOWAIT); |
4067 | } |
4778 | } |
4068 | |
4779 | |
4069 | static void |
4780 | static void |
… | |
… | |
4117 | ev_idle_stop (EV_A_ idle); |
4828 | ev_idle_stop (EV_A_ idle); |
4118 | } |
4829 | } |
4119 | #endif |
4830 | #endif |
4120 | |
4831 | |
4121 | void |
4832 | void |
4122 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4833 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4123 | { |
4834 | { |
4124 | if (expect_false (ev_is_active (w))) |
4835 | if (expect_false (ev_is_active (w))) |
4125 | return; |
4836 | return; |
4126 | |
4837 | |
4127 | { |
4838 | { |
… | |
… | |
4148 | |
4859 | |
4149 | EV_FREQUENT_CHECK; |
4860 | EV_FREQUENT_CHECK; |
4150 | } |
4861 | } |
4151 | |
4862 | |
4152 | void |
4863 | void |
4153 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4864 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4154 | { |
4865 | { |
4155 | clear_pending (EV_A_ (W)w); |
4866 | clear_pending (EV_A_ (W)w); |
4156 | if (expect_false (!ev_is_active (w))) |
4867 | if (expect_false (!ev_is_active (w))) |
4157 | return; |
4868 | return; |
4158 | |
4869 | |
… | |
… | |
4168 | } |
4879 | } |
4169 | #endif |
4880 | #endif |
4170 | |
4881 | |
4171 | #if EV_FORK_ENABLE |
4882 | #if EV_FORK_ENABLE |
4172 | void |
4883 | void |
4173 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4884 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4174 | { |
4885 | { |
4175 | if (expect_false (ev_is_active (w))) |
4886 | if (expect_false (ev_is_active (w))) |
4176 | return; |
4887 | return; |
4177 | |
4888 | |
4178 | EV_FREQUENT_CHECK; |
4889 | EV_FREQUENT_CHECK; |
4179 | |
4890 | |
4180 | ev_start (EV_A_ (W)w, ++forkcnt); |
4891 | ev_start (EV_A_ (W)w, ++forkcnt); |
4181 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4892 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4182 | forks [forkcnt - 1] = w; |
4893 | forks [forkcnt - 1] = w; |
4183 | |
4894 | |
4184 | EV_FREQUENT_CHECK; |
4895 | EV_FREQUENT_CHECK; |
4185 | } |
4896 | } |
4186 | |
4897 | |
4187 | void |
4898 | void |
4188 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4899 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4189 | { |
4900 | { |
4190 | clear_pending (EV_A_ (W)w); |
4901 | clear_pending (EV_A_ (W)w); |
4191 | if (expect_false (!ev_is_active (w))) |
4902 | if (expect_false (!ev_is_active (w))) |
4192 | return; |
4903 | return; |
4193 | |
4904 | |
… | |
… | |
4206 | } |
4917 | } |
4207 | #endif |
4918 | #endif |
4208 | |
4919 | |
4209 | #if EV_CLEANUP_ENABLE |
4920 | #if EV_CLEANUP_ENABLE |
4210 | void |
4921 | void |
4211 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4922 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4212 | { |
4923 | { |
4213 | if (expect_false (ev_is_active (w))) |
4924 | if (expect_false (ev_is_active (w))) |
4214 | return; |
4925 | return; |
4215 | |
4926 | |
4216 | EV_FREQUENT_CHECK; |
4927 | EV_FREQUENT_CHECK; |
4217 | |
4928 | |
4218 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4929 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4219 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
4930 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4220 | cleanups [cleanupcnt - 1] = w; |
4931 | cleanups [cleanupcnt - 1] = w; |
4221 | |
4932 | |
4222 | /* cleanup watchers should never keep a refcount on the loop */ |
4933 | /* cleanup watchers should never keep a refcount on the loop */ |
4223 | ev_unref (EV_A); |
4934 | ev_unref (EV_A); |
4224 | EV_FREQUENT_CHECK; |
4935 | EV_FREQUENT_CHECK; |
4225 | } |
4936 | } |
4226 | |
4937 | |
4227 | void |
4938 | void |
4228 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4939 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4229 | { |
4940 | { |
4230 | clear_pending (EV_A_ (W)w); |
4941 | clear_pending (EV_A_ (W)w); |
4231 | if (expect_false (!ev_is_active (w))) |
4942 | if (expect_false (!ev_is_active (w))) |
4232 | return; |
4943 | return; |
4233 | |
4944 | |
… | |
… | |
4247 | } |
4958 | } |
4248 | #endif |
4959 | #endif |
4249 | |
4960 | |
4250 | #if EV_ASYNC_ENABLE |
4961 | #if EV_ASYNC_ENABLE |
4251 | void |
4962 | void |
4252 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4963 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4253 | { |
4964 | { |
4254 | if (expect_false (ev_is_active (w))) |
4965 | if (expect_false (ev_is_active (w))) |
4255 | return; |
4966 | return; |
4256 | |
4967 | |
4257 | w->sent = 0; |
4968 | w->sent = 0; |
… | |
… | |
4259 | evpipe_init (EV_A); |
4970 | evpipe_init (EV_A); |
4260 | |
4971 | |
4261 | EV_FREQUENT_CHECK; |
4972 | EV_FREQUENT_CHECK; |
4262 | |
4973 | |
4263 | ev_start (EV_A_ (W)w, ++asynccnt); |
4974 | ev_start (EV_A_ (W)w, ++asynccnt); |
4264 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4975 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4265 | asyncs [asynccnt - 1] = w; |
4976 | asyncs [asynccnt - 1] = w; |
4266 | |
4977 | |
4267 | EV_FREQUENT_CHECK; |
4978 | EV_FREQUENT_CHECK; |
4268 | } |
4979 | } |
4269 | |
4980 | |
4270 | void |
4981 | void |
4271 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4982 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4272 | { |
4983 | { |
4273 | clear_pending (EV_A_ (W)w); |
4984 | clear_pending (EV_A_ (W)w); |
4274 | if (expect_false (!ev_is_active (w))) |
4985 | if (expect_false (!ev_is_active (w))) |
4275 | return; |
4986 | return; |
4276 | |
4987 | |
… | |
… | |
4287 | |
4998 | |
4288 | EV_FREQUENT_CHECK; |
4999 | EV_FREQUENT_CHECK; |
4289 | } |
5000 | } |
4290 | |
5001 | |
4291 | void |
5002 | void |
4292 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5003 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4293 | { |
5004 | { |
4294 | w->sent = 1; |
5005 | w->sent = 1; |
4295 | evpipe_write (EV_A_ &async_pending); |
5006 | evpipe_write (EV_A_ &async_pending); |
4296 | } |
5007 | } |
4297 | #endif |
5008 | #endif |
… | |
… | |
4334 | |
5045 | |
4335 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5046 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4336 | } |
5047 | } |
4337 | |
5048 | |
4338 | void |
5049 | void |
4339 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5050 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4340 | { |
5051 | { |
4341 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5052 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4342 | |
|
|
4343 | if (expect_false (!once)) |
|
|
4344 | { |
|
|
4345 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4346 | return; |
|
|
4347 | } |
|
|
4348 | |
5053 | |
4349 | once->cb = cb; |
5054 | once->cb = cb; |
4350 | once->arg = arg; |
5055 | once->arg = arg; |
4351 | |
5056 | |
4352 | ev_init (&once->io, once_cb_io); |
5057 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4365 | } |
5070 | } |
4366 | |
5071 | |
4367 | /*****************************************************************************/ |
5072 | /*****************************************************************************/ |
4368 | |
5073 | |
4369 | #if EV_WALK_ENABLE |
5074 | #if EV_WALK_ENABLE |
4370 | void ecb_cold |
5075 | ecb_cold |
|
|
5076 | void |
4371 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5077 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4372 | { |
5078 | { |
4373 | int i, j; |
5079 | int i, j; |
4374 | ev_watcher_list *wl, *wn; |
5080 | ev_watcher_list *wl, *wn; |
4375 | |
5081 | |
4376 | if (types & (EV_IO | EV_EMBED)) |
5082 | if (types & (EV_IO | EV_EMBED)) |