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 | |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
229 | # endif |
211 | # undef EV_AVOID_STDIO |
230 | # undef EV_AVOID_STDIO |
212 | #endif |
231 | #endif |
213 | |
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214 | /* OS X, in its infinite idiocy, actually HARDCODES |
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215 | * a limit of 1024 into their select. Where people have brains, |
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216 | * OS X engineers apparently have a vacuum. Or maybe they were |
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217 | * ordered to have a vacuum, or they do anything for money. |
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218 | * This might help. Or not. |
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219 | */ |
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220 | #define _DARWIN_UNLIMITED_SELECT 1 |
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221 | |
232 | |
222 | /* 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 */ |
223 | |
234 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
235 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
236 | #if defined EV_NSIG |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
252 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
253 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
254 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
255 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
256 | #else |
246 | # error "unable to find value for NSIG, please report" |
257 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
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248 | /* but consider reporting it, too! :) */ |
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249 | # define EV_NSIG 65 |
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250 | #endif |
258 | #endif |
251 | |
259 | |
252 | #ifndef EV_USE_FLOOR |
260 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
261 | # define EV_USE_FLOOR 0 |
254 | #endif |
262 | #endif |
255 | |
263 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
264 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
265 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
266 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
267 | # else |
260 | # 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 |
261 | # endif |
278 | # endif |
262 | #endif |
279 | #endif |
263 | |
280 | |
264 | #ifndef EV_USE_MONOTONIC |
281 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
282 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
307 | |
324 | |
308 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
309 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
310 | #endif |
327 | #endif |
311 | |
328 | |
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329 | #ifndef EV_USE_LINUXAIO |
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330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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331 | # define EV_USE_LINUXAIO 1 |
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332 | # else |
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333 | # define EV_USE_LINUXAIO 0 |
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334 | # endif |
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335 | #endif |
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336 | |
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337 | #ifndef EV_USE_IOURING |
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338 | # if __linux |
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339 | # define EV_USE_IOURING 0 |
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340 | # else |
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341 | # define EV_USE_IOURING 0 |
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342 | # endif |
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343 | #endif |
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344 | |
312 | #ifndef EV_USE_INOTIFY |
345 | #ifndef EV_USE_INOTIFY |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
346 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
347 | # define EV_USE_INOTIFY EV_FEATURE_OS |
315 | # else |
348 | # else |
316 | # define EV_USE_INOTIFY 0 |
349 | # define EV_USE_INOTIFY 0 |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
388 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
389 | #endif |
357 | |
390 | |
358 | #ifndef EV_HEAP_CACHE_AT |
391 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
392 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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393 | #endif |
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394 | |
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395 | #ifdef __ANDROID__ |
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396 | /* supposedly, android doesn't typedef fd_mask */ |
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397 | # undef EV_USE_SELECT |
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398 | # define EV_USE_SELECT 0 |
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399 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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400 | # undef EV_USE_CLOCK_SYSCALL |
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401 | # define EV_USE_CLOCK_SYSCALL 0 |
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402 | #endif |
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403 | |
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404 | /* aix's poll.h seems to cause lots of trouble */ |
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405 | #ifdef _AIX |
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406 | /* AIX has a completely broken poll.h header */ |
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407 | # undef EV_USE_POLL |
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408 | # define EV_USE_POLL 0 |
360 | #endif |
409 | #endif |
361 | |
410 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
411 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
412 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
413 | #if EV_USE_CLOCK_SYSCALL |
365 | # include <sys/syscall.h> |
414 | # include <sys/syscall.h> |
366 | # ifdef SYS_clock_gettime |
415 | # ifdef SYS_clock_gettime |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
416 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
368 | # undef EV_USE_MONOTONIC |
417 | # undef EV_USE_MONOTONIC |
369 | # define EV_USE_MONOTONIC 1 |
418 | # define EV_USE_MONOTONIC 1 |
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419 | # define EV_NEED_SYSCALL 1 |
370 | # else |
420 | # else |
371 | # undef EV_USE_CLOCK_SYSCALL |
421 | # undef EV_USE_CLOCK_SYSCALL |
372 | # define EV_USE_CLOCK_SYSCALL 0 |
422 | # define EV_USE_CLOCK_SYSCALL 0 |
373 | # endif |
423 | # endif |
374 | #endif |
424 | #endif |
375 | |
425 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
426 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
427 | |
378 | #ifdef _AIX |
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379 | /* AIX has a completely broken poll.h header */ |
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380 | # undef EV_USE_POLL |
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381 | # define EV_USE_POLL 0 |
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382 | #endif |
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383 | |
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384 | #ifndef CLOCK_MONOTONIC |
428 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
429 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
430 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
431 | #endif |
388 | |
432 | |
… | |
… | |
398 | |
442 | |
399 | #if !EV_USE_NANOSLEEP |
443 | #if !EV_USE_NANOSLEEP |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
444 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
401 | # if !defined _WIN32 && !defined __hpux |
445 | # if !defined _WIN32 && !defined __hpux |
402 | # include <sys/select.h> |
446 | # include <sys/select.h> |
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447 | # endif |
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448 | #endif |
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449 | |
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450 | #if EV_USE_LINUXAIO |
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451 | # include <sys/syscall.h> |
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452 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
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453 | # define EV_NEED_SYSCALL 1 |
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454 | # else |
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455 | # undef EV_USE_LINUXAIO |
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456 | # define EV_USE_LINUXAIO 0 |
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457 | # endif |
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458 | #endif |
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459 | |
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460 | #if EV_USE_IOURING |
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461 | # include <sys/syscall.h> |
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462 | # if !SYS_io_uring_setup && __linux && !__alpha |
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463 | # define SYS_io_uring_setup 425 |
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464 | # define SYS_io_uring_enter 426 |
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465 | # define SYS_io_uring_wregister 427 |
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466 | # endif |
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467 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
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468 | # define EV_NEED_SYSCALL 1 |
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469 | # else |
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470 | # undef EV_USE_IOURING |
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471 | # define EV_USE_IOURING 0 |
403 | # endif |
472 | # endif |
404 | #endif |
473 | #endif |
405 | |
474 | |
406 | #if EV_USE_INOTIFY |
475 | #if EV_USE_INOTIFY |
407 | # include <sys/statfs.h> |
476 | # include <sys/statfs.h> |
… | |
… | |
449 | uint32_t ssi_signo; |
518 | uint32_t ssi_signo; |
450 | char pad[128 - sizeof (uint32_t)]; |
519 | char pad[128 - sizeof (uint32_t)]; |
451 | }; |
520 | }; |
452 | #endif |
521 | #endif |
453 | |
522 | |
454 | /**/ |
523 | /*****************************************************************************/ |
455 | |
524 | |
456 | #if EV_VERIFY >= 3 |
525 | #if EV_VERIFY >= 3 |
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
526 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
458 | #else |
527 | #else |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
528 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
464 | * This value is good at least till the year 4000. |
533 | * This value is good at least till the year 4000. |
465 | */ |
534 | */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
535 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
536 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
468 | |
537 | |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
538 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
539 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
471 | |
540 | |
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541 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
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542 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
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543 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
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544 | #define EV_TSTAMP_HUGE \ |
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545 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
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546 | : 0 < (time_t)4294967295 ? 4294967295. \ |
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547 | : 2147483647.) \ |
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548 | |
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549 | #define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
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550 | #define EV_TS_FROM_USEC(us) us * 1e-6 |
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
551 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
552 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
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553 | #define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
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554 | #define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
474 | |
555 | |
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
556 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
476 | /* ECB.H BEGIN */ |
557 | /* ECB.H BEGIN */ |
477 | /* |
558 | /* |
478 | * libecb - http://software.schmorp.de/pkg/libecb |
559 | * libecb - http://software.schmorp.de/pkg/libecb |
479 | * |
560 | * |
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
561 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
481 | * Copyright (©) 2011 Emanuele Giaquinta |
562 | * Copyright (©) 2011 Emanuele Giaquinta |
482 | * All rights reserved. |
563 | * All rights reserved. |
483 | * |
564 | * |
484 | * Redistribution and use in source and binary forms, with or without modifica- |
565 | * Redistribution and use in source and binary forms, with or without modifica- |
485 | * tion, are permitted provided that the following conditions are met: |
566 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
580 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
581 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
582 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
583 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
584 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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585 | * |
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586 | * Alternatively, the contents of this file may be used under the terms of |
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587 | * the GNU General Public License ("GPL") version 2 or any later version, |
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588 | * in which case the provisions of the GPL are applicable instead of |
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589 | * the above. If you wish to allow the use of your version of this file |
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590 | * only under the terms of the GPL and not to allow others to use your |
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591 | * version of this file under the BSD license, indicate your decision |
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592 | * by deleting the provisions above and replace them with the notice |
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593 | * and other provisions required by the GPL. If you do not delete the |
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594 | * provisions above, a recipient may use your version of this file under |
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595 | * either the BSD or the GPL. |
504 | */ |
596 | */ |
505 | |
597 | |
506 | #ifndef ECB_H |
598 | #ifndef ECB_H |
507 | #define ECB_H |
599 | #define ECB_H |
508 | |
600 | |
509 | /* 16 bits major, 16 bits minor */ |
601 | /* 16 bits major, 16 bits minor */ |
510 | #define ECB_VERSION 0x00010001 |
602 | #define ECB_VERSION 0x00010006 |
511 | |
603 | |
512 | #ifdef _WIN32 |
604 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
605 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
606 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
607 | typedef signed short int16_t; |
… | |
… | |
530 | #else |
622 | #else |
531 | #define ECB_PTRSIZE 4 |
623 | #define ECB_PTRSIZE 4 |
532 | typedef uint32_t uintptr_t; |
624 | typedef uint32_t uintptr_t; |
533 | typedef int32_t intptr_t; |
625 | typedef int32_t intptr_t; |
534 | #endif |
626 | #endif |
535 | typedef intptr_t ptrdiff_t; |
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536 | #else |
627 | #else |
537 | #include <inttypes.h> |
628 | #include <inttypes.h> |
538 | #if UINTMAX_MAX > 0xffffffffU |
629 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
539 | #define ECB_PTRSIZE 8 |
630 | #define ECB_PTRSIZE 8 |
540 | #else |
631 | #else |
541 | #define ECB_PTRSIZE 4 |
632 | #define ECB_PTRSIZE 4 |
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633 | #endif |
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634 | #endif |
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635 | |
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636 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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637 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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638 | |
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639 | /* work around x32 idiocy by defining proper macros */ |
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640 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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641 | #if _ILP32 |
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642 | #define ECB_AMD64_X32 1 |
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643 | #else |
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644 | #define ECB_AMD64 1 |
542 | #endif |
645 | #endif |
543 | #endif |
646 | #endif |
544 | |
647 | |
545 | /* many compilers define _GNUC_ to some versions but then only implement |
648 | /* many compilers define _GNUC_ to some versions but then only implement |
546 | * what their idiot authors think are the "more important" extensions, |
649 | * what their idiot authors think are the "more important" extensions, |
547 | * causing enormous grief in return for some better fake benchmark numbers. |
650 | * causing enormous grief in return for some better fake benchmark numbers. |
548 | * or so. |
651 | * or so. |
549 | * we try to detect these and simply assume they are not gcc - if they have |
652 | * we try to detect these and simply assume they are not gcc - if they have |
550 | * an issue with that they should have done it right in the first place. |
653 | * an issue with that they should have done it right in the first place. |
551 | */ |
654 | */ |
552 | #ifndef ECB_GCC_VERSION |
|
|
553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
655 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
554 | #define ECB_GCC_VERSION(major,minor) 0 |
656 | #define ECB_GCC_VERSION(major,minor) 0 |
555 | #else |
657 | #else |
556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
658 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
557 | #endif |
659 | #endif |
558 | #endif |
|
|
559 | |
660 | |
560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
661 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
662 | |
562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
663 | #if __clang__ && defined __has_builtin |
|
|
664 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
665 | #else |
|
|
666 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
667 | #endif |
|
|
668 | |
|
|
669 | #if __clang__ && defined __has_extension |
|
|
670 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
671 | #else |
|
|
672 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
673 | #endif |
|
|
674 | |
563 | #define ECB_CPP (__cplusplus+0) |
675 | #define ECB_CPP (__cplusplus+0) |
564 | #define ECB_CPP98 (__cplusplus >= 199711L) |
|
|
565 | #define ECB_CPP11 (__cplusplus >= 201103L) |
676 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
677 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
678 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
679 | |
|
|
680 | #if ECB_CPP |
|
|
681 | #define ECB_C 0 |
|
|
682 | #define ECB_STDC_VERSION 0 |
|
|
683 | #else |
|
|
684 | #define ECB_C 1 |
|
|
685 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
686 | #endif |
|
|
687 | |
|
|
688 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
689 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
690 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
691 | |
|
|
692 | #if ECB_CPP |
|
|
693 | #define ECB_EXTERN_C extern "C" |
|
|
694 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
695 | #define ECB_EXTERN_C_END } |
|
|
696 | #else |
|
|
697 | #define ECB_EXTERN_C extern |
|
|
698 | #define ECB_EXTERN_C_BEG |
|
|
699 | #define ECB_EXTERN_C_END |
|
|
700 | #endif |
566 | |
701 | |
567 | /*****************************************************************************/ |
702 | /*****************************************************************************/ |
568 | |
703 | |
569 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
704 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
570 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
705 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
… | |
… | |
575 | |
710 | |
576 | #if ECB_NO_SMP |
711 | #if ECB_NO_SMP |
577 | #define ECB_MEMORY_FENCE do { } while (0) |
712 | #define ECB_MEMORY_FENCE do { } while (0) |
578 | #endif |
713 | #endif |
579 | |
714 | |
|
|
715 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
716 | #if __xlC__ && ECB_CPP |
|
|
717 | #include <builtins.h> |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | #if 1400 <= _MSC_VER |
|
|
721 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
722 | #endif |
|
|
723 | |
580 | #ifndef ECB_MEMORY_FENCE |
724 | #ifndef ECB_MEMORY_FENCE |
581 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
725 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
726 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
582 | #if __i386 || __i386__ |
727 | #if __i386 || __i386__ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
728 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
584 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
729 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
585 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
730 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
586 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
731 | #elif ECB_GCC_AMD64 |
587 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
732 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
588 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
733 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
589 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
734 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
590 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
735 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
591 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
736 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
737 | #elif defined __ARM_ARCH_2__ \ |
|
|
738 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
739 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
740 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
741 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
742 | || defined __ARM_ARCH_5TEJ__ |
|
|
743 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
592 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
744 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
593 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
745 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
746 | || defined __ARM_ARCH_6T2__ |
594 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
747 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
595 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
748 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
596 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
749 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
597 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
750 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
598 | #elif __sparc || __sparc__ |
751 | #elif __aarch64__ |
|
|
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
753 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
599 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
754 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
600 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
755 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
601 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
756 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
602 | #elif defined __s390__ || defined __s390x__ |
757 | #elif defined __s390__ || defined __s390x__ |
603 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
758 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
604 | #elif defined __mips__ |
759 | #elif defined __mips__ |
|
|
760 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
761 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
762 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
606 | #elif defined __alpha__ |
763 | #elif defined __alpha__ |
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
764 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
608 | #elif defined __hppa__ |
765 | #elif defined __hppa__ |
609 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
766 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
610 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
767 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
611 | #elif defined __ia64__ |
768 | #elif defined __ia64__ |
612 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
769 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
770 | #elif defined __m68k__ |
|
|
771 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
772 | #elif defined __m88k__ |
|
|
773 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
774 | #elif defined __sh__ |
|
|
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
613 | #endif |
776 | #endif |
614 | #endif |
777 | #endif |
615 | #endif |
778 | #endif |
616 | |
779 | |
617 | #ifndef ECB_MEMORY_FENCE |
780 | #ifndef ECB_MEMORY_FENCE |
618 | #if ECB_GCC_VERSION(4,7) |
781 | #if ECB_GCC_VERSION(4,7) |
619 | /* see comment below about the C11 memory model. in short - avoid */ |
782 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
620 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
783 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
621 | #elif defined __clang && __has_feature (cxx_atomic) |
784 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
622 | /* see above */ |
785 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
786 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
787 | |
|
|
788 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
789 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
623 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
790 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
791 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
792 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
793 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
794 | |
624 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
795 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
625 | #define ECB_MEMORY_FENCE __sync_synchronize () |
796 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
797 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
798 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
799 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
800 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
801 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
802 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
626 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
803 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
627 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
804 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
628 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
805 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
629 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
806 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
630 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
807 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
631 | #elif defined _WIN32 |
808 | #elif defined _WIN32 |
632 | #include <WinNT.h> |
809 | #include <WinNT.h> |
633 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
810 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
634 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
811 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
635 | #include <mbarrier.h> |
812 | #include <mbarrier.h> |
636 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
813 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
637 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
814 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
638 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
815 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
816 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
639 | #elif __xlC__ |
817 | #elif __xlC__ |
640 | #define ECB_MEMORY_FENCE __sync () |
818 | #define ECB_MEMORY_FENCE __sync () |
641 | #endif |
819 | #endif |
642 | #endif |
820 | #endif |
643 | |
821 | |
644 | #ifndef ECB_MEMORY_FENCE |
822 | #ifndef ECB_MEMORY_FENCE |
645 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
823 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
646 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
824 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
647 | /* not just C11 atomics and atomic accesses */ |
825 | /* not just C11 atomics and atomic accesses */ |
648 | #include <stdatomic.h> |
826 | #include <stdatomic.h> |
649 | /* unfortunately, the C11 memory model seems to be very limited, and unable to express */ |
|
|
650 | /* simple barrier semantics. That means we need to take out thor's hammer. */ |
|
|
651 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
827 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
828 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
829 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
652 | #endif |
830 | #endif |
653 | #endif |
831 | #endif |
654 | |
832 | |
655 | #ifndef ECB_MEMORY_FENCE |
833 | #ifndef ECB_MEMORY_FENCE |
656 | #if !ECB_AVOID_PTHREADS |
834 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
676 | |
854 | |
677 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
855 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
678 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
856 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
679 | #endif |
857 | #endif |
680 | |
858 | |
|
|
859 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
860 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
861 | #endif |
|
|
862 | |
681 | /*****************************************************************************/ |
863 | /*****************************************************************************/ |
682 | |
864 | |
683 | #if __cplusplus |
865 | #if ECB_CPP |
684 | #define ecb_inline static inline |
866 | #define ecb_inline static inline |
685 | #elif ECB_GCC_VERSION(2,5) |
867 | #elif ECB_GCC_VERSION(2,5) |
686 | #define ecb_inline static __inline__ |
868 | #define ecb_inline static __inline__ |
687 | #elif ECB_C99 |
869 | #elif ECB_C99 |
688 | #define ecb_inline static inline |
870 | #define ecb_inline static inline |
… | |
… | |
702 | |
884 | |
703 | #define ECB_CONCAT_(a, b) a ## b |
885 | #define ECB_CONCAT_(a, b) a ## b |
704 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
886 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
705 | #define ECB_STRINGIFY_(a) # a |
887 | #define ECB_STRINGIFY_(a) # a |
706 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
888 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
889 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
707 | |
890 | |
708 | #define ecb_function_ ecb_inline |
891 | #define ecb_function_ ecb_inline |
709 | |
892 | |
710 | #if ECB_GCC_VERSION(3,1) |
893 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
711 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
894 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
895 | #else |
|
|
896 | #define ecb_attribute(attrlist) |
|
|
897 | #endif |
|
|
898 | |
|
|
899 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
712 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
900 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
901 | #else |
|
|
902 | /* possible C11 impl for integral types |
|
|
903 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
904 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
905 | |
|
|
906 | #define ecb_is_constant(expr) 0 |
|
|
907 | #endif |
|
|
908 | |
|
|
909 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
713 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
910 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
911 | #else |
|
|
912 | #define ecb_expect(expr,value) (expr) |
|
|
913 | #endif |
|
|
914 | |
|
|
915 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
714 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
916 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
715 | #else |
917 | #else |
716 | #define ecb_attribute(attrlist) |
|
|
717 | #define ecb_is_constant(expr) 0 |
|
|
718 | #define ecb_expect(expr,value) (expr) |
|
|
719 | #define ecb_prefetch(addr,rw,locality) |
918 | #define ecb_prefetch(addr,rw,locality) |
720 | #endif |
919 | #endif |
721 | |
920 | |
722 | /* no emulation for ecb_decltype */ |
921 | /* no emulation for ecb_decltype */ |
723 | #if ECB_GCC_VERSION(4,5) |
922 | #if ECB_CPP11 |
|
|
923 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
924 | template<class T> struct ecb_decltype_t { typedef T type; }; |
724 | #define ecb_decltype(x) __decltype(x) |
925 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
725 | #elif ECB_GCC_VERSION(3,0) |
926 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
726 | #define ecb_decltype(x) __typeof(x) |
927 | #define ecb_decltype(x) __typeof__ (x) |
727 | #endif |
928 | #endif |
728 | |
929 | |
|
|
930 | #if _MSC_VER >= 1300 |
|
|
931 | #define ecb_deprecated __declspec (deprecated) |
|
|
932 | #else |
|
|
933 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
934 | #endif |
|
|
935 | |
|
|
936 | #if _MSC_VER >= 1500 |
|
|
937 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
938 | #elif ECB_GCC_VERSION(4,5) |
|
|
939 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
940 | #else |
|
|
941 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | #if _MSC_VER >= 1400 |
|
|
945 | #define ecb_noinline __declspec (noinline) |
|
|
946 | #else |
729 | #define ecb_noinline ecb_attribute ((__noinline__)) |
947 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
948 | #endif |
|
|
949 | |
730 | #define ecb_unused ecb_attribute ((__unused__)) |
950 | #define ecb_unused ecb_attribute ((__unused__)) |
731 | #define ecb_const ecb_attribute ((__const__)) |
951 | #define ecb_const ecb_attribute ((__const__)) |
732 | #define ecb_pure ecb_attribute ((__pure__)) |
952 | #define ecb_pure ecb_attribute ((__pure__)) |
733 | |
953 | |
734 | #if ECB_C11 |
954 | #if ECB_C11 || __IBMC_NORETURN |
|
|
955 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
735 | #define ecb_noreturn _Noreturn |
956 | #define ecb_noreturn _Noreturn |
|
|
957 | #elif ECB_CPP11 |
|
|
958 | #define ecb_noreturn [[noreturn]] |
|
|
959 | #elif _MSC_VER >= 1200 |
|
|
960 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
961 | #define ecb_noreturn __declspec (noreturn) |
736 | #else |
962 | #else |
737 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
963 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
738 | #endif |
964 | #endif |
739 | |
965 | |
740 | #if ECB_GCC_VERSION(4,3) |
966 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
755 | /* for compatibility to the rest of the world */ |
981 | /* for compatibility to the rest of the world */ |
756 | #define ecb_likely(expr) ecb_expect_true (expr) |
982 | #define ecb_likely(expr) ecb_expect_true (expr) |
757 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
983 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
758 | |
984 | |
759 | /* count trailing zero bits and count # of one bits */ |
985 | /* count trailing zero bits and count # of one bits */ |
760 | #if ECB_GCC_VERSION(3,4) |
986 | #if ECB_GCC_VERSION(3,4) \ |
|
|
987 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
988 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
989 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
761 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
990 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
762 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
991 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
763 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
992 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
764 | #define ecb_ctz32(x) __builtin_ctz (x) |
993 | #define ecb_ctz32(x) __builtin_ctz (x) |
765 | #define ecb_ctz64(x) __builtin_ctzll (x) |
994 | #define ecb_ctz64(x) __builtin_ctzll (x) |
766 | #define ecb_popcount32(x) __builtin_popcount (x) |
995 | #define ecb_popcount32(x) __builtin_popcount (x) |
767 | /* no popcountll */ |
996 | /* no popcountll */ |
768 | #else |
997 | #else |
769 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
998 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
770 | ecb_function_ int |
999 | ecb_function_ ecb_const int |
771 | ecb_ctz32 (uint32_t x) |
1000 | ecb_ctz32 (uint32_t x) |
772 | { |
1001 | { |
|
|
1002 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1003 | unsigned long r; |
|
|
1004 | _BitScanForward (&r, x); |
|
|
1005 | return (int)r; |
|
|
1006 | #else |
773 | int r = 0; |
1007 | int r = 0; |
774 | |
1008 | |
775 | x &= ~x + 1; /* this isolates the lowest bit */ |
1009 | x &= ~x + 1; /* this isolates the lowest bit */ |
776 | |
1010 | |
777 | #if ECB_branchless_on_i386 |
1011 | #if ECB_branchless_on_i386 |
… | |
… | |
787 | if (x & 0xff00ff00) r += 8; |
1021 | if (x & 0xff00ff00) r += 8; |
788 | if (x & 0xffff0000) r += 16; |
1022 | if (x & 0xffff0000) r += 16; |
789 | #endif |
1023 | #endif |
790 | |
1024 | |
791 | return r; |
1025 | return r; |
|
|
1026 | #endif |
792 | } |
1027 | } |
793 | |
1028 | |
794 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1029 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
795 | ecb_function_ int |
1030 | ecb_function_ ecb_const int |
796 | ecb_ctz64 (uint64_t x) |
1031 | ecb_ctz64 (uint64_t x) |
797 | { |
1032 | { |
|
|
1033 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1034 | unsigned long r; |
|
|
1035 | _BitScanForward64 (&r, x); |
|
|
1036 | return (int)r; |
|
|
1037 | #else |
798 | int shift = x & 0xffffffffU ? 0 : 32; |
1038 | int shift = x & 0xffffffff ? 0 : 32; |
799 | return ecb_ctz32 (x >> shift) + shift; |
1039 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1040 | #endif |
800 | } |
1041 | } |
801 | |
1042 | |
802 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1043 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
803 | ecb_function_ int |
1044 | ecb_function_ ecb_const int |
804 | ecb_popcount32 (uint32_t x) |
1045 | ecb_popcount32 (uint32_t x) |
805 | { |
1046 | { |
806 | x -= (x >> 1) & 0x55555555; |
1047 | x -= (x >> 1) & 0x55555555; |
807 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1048 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
808 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1049 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
809 | x *= 0x01010101; |
1050 | x *= 0x01010101; |
810 | |
1051 | |
811 | return x >> 24; |
1052 | return x >> 24; |
812 | } |
1053 | } |
813 | |
1054 | |
814 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1055 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
815 | ecb_function_ int ecb_ld32 (uint32_t x) |
1056 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
816 | { |
1057 | { |
|
|
1058 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1059 | unsigned long r; |
|
|
1060 | _BitScanReverse (&r, x); |
|
|
1061 | return (int)r; |
|
|
1062 | #else |
817 | int r = 0; |
1063 | int r = 0; |
818 | |
1064 | |
819 | if (x >> 16) { x >>= 16; r += 16; } |
1065 | if (x >> 16) { x >>= 16; r += 16; } |
820 | if (x >> 8) { x >>= 8; r += 8; } |
1066 | if (x >> 8) { x >>= 8; r += 8; } |
821 | if (x >> 4) { x >>= 4; r += 4; } |
1067 | if (x >> 4) { x >>= 4; r += 4; } |
822 | if (x >> 2) { x >>= 2; r += 2; } |
1068 | if (x >> 2) { x >>= 2; r += 2; } |
823 | if (x >> 1) { r += 1; } |
1069 | if (x >> 1) { r += 1; } |
824 | |
1070 | |
825 | return r; |
1071 | return r; |
|
|
1072 | #endif |
826 | } |
1073 | } |
827 | |
1074 | |
828 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1075 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
829 | ecb_function_ int ecb_ld64 (uint64_t x) |
1076 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
830 | { |
1077 | { |
|
|
1078 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1079 | unsigned long r; |
|
|
1080 | _BitScanReverse64 (&r, x); |
|
|
1081 | return (int)r; |
|
|
1082 | #else |
831 | int r = 0; |
1083 | int r = 0; |
832 | |
1084 | |
833 | if (x >> 32) { x >>= 32; r += 32; } |
1085 | if (x >> 32) { x >>= 32; r += 32; } |
834 | |
1086 | |
835 | return r + ecb_ld32 (x); |
1087 | return r + ecb_ld32 (x); |
|
|
1088 | #endif |
836 | } |
1089 | } |
837 | #endif |
1090 | #endif |
838 | |
1091 | |
839 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1092 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
840 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1093 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
841 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1094 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
842 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1095 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
843 | |
1096 | |
844 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1097 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
845 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1098 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
846 | { |
1099 | { |
847 | return ( (x * 0x0802U & 0x22110U) |
1100 | return ( (x * 0x0802U & 0x22110U) |
848 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1101 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
849 | } |
1102 | } |
850 | |
1103 | |
851 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1104 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
852 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1105 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
853 | { |
1106 | { |
854 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1107 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
855 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1108 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
856 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1109 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
857 | x = ( x >> 8 ) | ( x << 8); |
1110 | x = ( x >> 8 ) | ( x << 8); |
858 | |
1111 | |
859 | return x; |
1112 | return x; |
860 | } |
1113 | } |
861 | |
1114 | |
862 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1115 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
863 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1116 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
864 | { |
1117 | { |
865 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1118 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
866 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1119 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
867 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1120 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
868 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1121 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
871 | return x; |
1124 | return x; |
872 | } |
1125 | } |
873 | |
1126 | |
874 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1127 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
875 | /* so for this version we are lazy */ |
1128 | /* so for this version we are lazy */ |
876 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1129 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
877 | ecb_function_ int |
1130 | ecb_function_ ecb_const int |
878 | ecb_popcount64 (uint64_t x) |
1131 | ecb_popcount64 (uint64_t x) |
879 | { |
1132 | { |
880 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1133 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
881 | } |
1134 | } |
882 | |
1135 | |
883 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1136 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
884 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1137 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
885 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1138 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
886 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1139 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
887 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1140 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
888 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1141 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
889 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1142 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
890 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1143 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
891 | |
1144 | |
892 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1145 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
893 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1146 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
894 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1147 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
895 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1148 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
896 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1149 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
897 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1150 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
898 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1151 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
899 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1152 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
900 | |
1153 | |
901 | #if ECB_GCC_VERSION(4,3) |
1154 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1155 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1156 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1157 | #else |
902 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1158 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1159 | #endif |
903 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1160 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
904 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1161 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1162 | #elif _MSC_VER |
|
|
1163 | #include <stdlib.h> |
|
|
1164 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1165 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1166 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
905 | #else |
1167 | #else |
906 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1168 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
907 | ecb_function_ uint16_t |
1169 | ecb_function_ ecb_const uint16_t |
908 | ecb_bswap16 (uint16_t x) |
1170 | ecb_bswap16 (uint16_t x) |
909 | { |
1171 | { |
910 | return ecb_rotl16 (x, 8); |
1172 | return ecb_rotl16 (x, 8); |
911 | } |
1173 | } |
912 | |
1174 | |
913 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1175 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
914 | ecb_function_ uint32_t |
1176 | ecb_function_ ecb_const uint32_t |
915 | ecb_bswap32 (uint32_t x) |
1177 | ecb_bswap32 (uint32_t x) |
916 | { |
1178 | { |
917 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1179 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
918 | } |
1180 | } |
919 | |
1181 | |
920 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1182 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
921 | ecb_function_ uint64_t |
1183 | ecb_function_ ecb_const uint64_t |
922 | ecb_bswap64 (uint64_t x) |
1184 | ecb_bswap64 (uint64_t x) |
923 | { |
1185 | { |
924 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1186 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
925 | } |
1187 | } |
926 | #endif |
1188 | #endif |
927 | |
1189 | |
928 | #if ECB_GCC_VERSION(4,5) |
1190 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
929 | #define ecb_unreachable() __builtin_unreachable () |
1191 | #define ecb_unreachable() __builtin_unreachable () |
930 | #else |
1192 | #else |
931 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1193 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
932 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1194 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
933 | ecb_inline void ecb_unreachable (void) { } |
1195 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
934 | #endif |
1196 | #endif |
935 | |
1197 | |
936 | /* try to tell the compiler that some condition is definitely true */ |
1198 | /* try to tell the compiler that some condition is definitely true */ |
937 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1199 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
938 | |
1200 | |
939 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1201 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
940 | ecb_inline unsigned char |
1202 | ecb_inline ecb_const uint32_t |
941 | ecb_byteorder_helper (void) |
1203 | ecb_byteorder_helper (void) |
942 | { |
1204 | { |
943 | const uint32_t u = 0x11223344; |
1205 | /* the union code still generates code under pressure in gcc, */ |
944 | return *(unsigned char *)&u; |
1206 | /* but less than using pointers, and always seems to */ |
|
|
1207 | /* successfully return a constant. */ |
|
|
1208 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1209 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1210 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1211 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1212 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1213 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1214 | return 0x44332211; |
|
|
1215 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1216 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1217 | #define ECB_BIG_ENDIAN 1 |
|
|
1218 | return 0x11223344; |
|
|
1219 | #else |
|
|
1220 | union |
|
|
1221 | { |
|
|
1222 | uint8_t c[4]; |
|
|
1223 | uint32_t u; |
|
|
1224 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1225 | return u.u; |
|
|
1226 | #endif |
945 | } |
1227 | } |
946 | |
1228 | |
947 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1229 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
948 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1230 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
949 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1231 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
950 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1232 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
951 | |
1233 | |
952 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1234 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
953 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1235 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
954 | #else |
1236 | #else |
955 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1237 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
956 | #endif |
1238 | #endif |
957 | |
1239 | |
958 | #if __cplusplus |
1240 | #if ECB_CPP |
959 | template<typename T> |
1241 | template<typename T> |
960 | static inline T ecb_div_rd (T val, T div) |
1242 | static inline T ecb_div_rd (T val, T div) |
961 | { |
1243 | { |
962 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1244 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
963 | } |
1245 | } |
… | |
… | |
980 | } |
1262 | } |
981 | #else |
1263 | #else |
982 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1264 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
983 | #endif |
1265 | #endif |
984 | |
1266 | |
|
|
1267 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1268 | ecb_function_ ecb_const uint32_t |
|
|
1269 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1270 | { |
|
|
1271 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1272 | int e = (x >> 10) & 0x001f; |
|
|
1273 | unsigned int m = x & 0x03ff; |
|
|
1274 | |
|
|
1275 | if (ecb_expect_false (e == 31)) |
|
|
1276 | /* infinity or NaN */ |
|
|
1277 | e = 255 - (127 - 15); |
|
|
1278 | else if (ecb_expect_false (!e)) |
|
|
1279 | { |
|
|
1280 | if (ecb_expect_true (!m)) |
|
|
1281 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1282 | e = 0 - (127 - 15); |
|
|
1283 | else |
|
|
1284 | { |
|
|
1285 | /* subnormal, renormalise */ |
|
|
1286 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1287 | |
|
|
1288 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1289 | e -= s - 1; |
|
|
1290 | } |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1294 | e += 127 - 15; |
|
|
1295 | |
|
|
1296 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1297 | } |
|
|
1298 | |
|
|
1299 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1300 | ecb_function_ ecb_const uint16_t |
|
|
1301 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1302 | { |
|
|
1303 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1304 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1305 | unsigned int m = x & 0x007fffff; |
|
|
1306 | |
|
|
1307 | x &= 0x7fffffff; |
|
|
1308 | |
|
|
1309 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1310 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1311 | { |
|
|
1312 | /* mantissa round-to-even */ |
|
|
1313 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1314 | |
|
|
1315 | /* handle overflow */ |
|
|
1316 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1317 | { |
|
|
1318 | m >>= 1; |
|
|
1319 | e += 1; |
|
|
1320 | } |
|
|
1321 | |
|
|
1322 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | /* handle large numbers and infinity */ |
|
|
1326 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1327 | return s | 0x7c00; |
|
|
1328 | |
|
|
1329 | /* handle zero, subnormals and small numbers */ |
|
|
1330 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1331 | { |
|
|
1332 | /* zero */ |
|
|
1333 | if (ecb_expect_true (!x)) |
|
|
1334 | return s; |
|
|
1335 | |
|
|
1336 | /* handle subnormals */ |
|
|
1337 | |
|
|
1338 | /* too small, will be zero */ |
|
|
1339 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1340 | return s; |
|
|
1341 | |
|
|
1342 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1343 | |
|
|
1344 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1345 | { |
|
|
1346 | unsigned int bits = 14 - e; |
|
|
1347 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1348 | unsigned int even = (m >> bits) & 1; |
|
|
1349 | |
|
|
1350 | /* if this overflows, we will end up with a normalised number */ |
|
|
1351 | m = (m + half + even) >> bits; |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | return s | m; |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1358 | m >>= 13; |
|
|
1359 | |
|
|
1360 | return s | 0x7c00 | m | !m; |
|
|
1361 | } |
|
|
1362 | |
|
|
1363 | /*******************************************************************************/ |
|
|
1364 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1365 | |
|
|
1366 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1367 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1368 | #if 0 \ |
|
|
1369 | || __i386 || __i386__ \ |
|
|
1370 | || ECB_GCC_AMD64 \ |
|
|
1371 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1372 | || defined __s390__ || defined __s390x__ \ |
|
|
1373 | || defined __mips__ \ |
|
|
1374 | || defined __alpha__ \ |
|
|
1375 | || defined __hppa__ \ |
|
|
1376 | || defined __ia64__ \ |
|
|
1377 | || defined __m68k__ \ |
|
|
1378 | || defined __m88k__ \ |
|
|
1379 | || defined __sh__ \ |
|
|
1380 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1381 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1382 | || defined __aarch64__ |
|
|
1383 | #define ECB_STDFP 1 |
|
|
1384 | #include <string.h> /* for memcpy */ |
|
|
1385 | #else |
|
|
1386 | #define ECB_STDFP 0 |
|
|
1387 | #endif |
|
|
1388 | |
|
|
1389 | #ifndef ECB_NO_LIBM |
|
|
1390 | |
|
|
1391 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1392 | |
|
|
1393 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1394 | #ifdef INFINITY |
|
|
1395 | #define ECB_INFINITY INFINITY |
|
|
1396 | #else |
|
|
1397 | #define ECB_INFINITY HUGE_VAL |
|
|
1398 | #endif |
|
|
1399 | |
|
|
1400 | #ifdef NAN |
|
|
1401 | #define ECB_NAN NAN |
|
|
1402 | #else |
|
|
1403 | #define ECB_NAN ECB_INFINITY |
|
|
1404 | #endif |
|
|
1405 | |
|
|
1406 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1407 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1408 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1409 | #else |
|
|
1410 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1411 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1412 | #endif |
|
|
1413 | |
|
|
1414 | /* convert a float to ieee single/binary32 */ |
|
|
1415 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1416 | ecb_function_ ecb_const uint32_t |
|
|
1417 | ecb_float_to_binary32 (float x) |
|
|
1418 | { |
|
|
1419 | uint32_t r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 4); |
|
|
1423 | #else |
|
|
1424 | /* slow emulation, works for anything but -0 */ |
|
|
1425 | uint32_t m; |
|
|
1426 | int e; |
|
|
1427 | |
|
|
1428 | if (x == 0e0f ) return 0x00000000U; |
|
|
1429 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1430 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1431 | if (x != x ) return 0x7fbfffffU; |
|
|
1432 | |
|
|
1433 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1434 | |
|
|
1435 | r = m & 0x80000000U; |
|
|
1436 | |
|
|
1437 | if (r) |
|
|
1438 | m = -m; |
|
|
1439 | |
|
|
1440 | if (e <= -126) |
|
|
1441 | { |
|
|
1442 | m &= 0xffffffU; |
|
|
1443 | m >>= (-125 - e); |
|
|
1444 | e = -126; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | r |= (e + 126) << 23; |
|
|
1448 | r |= m & 0x7fffffU; |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | return r; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* converts an ieee single/binary32 to a float */ |
|
|
1455 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1456 | ecb_function_ ecb_const float |
|
|
1457 | ecb_binary32_to_float (uint32_t x) |
|
|
1458 | { |
|
|
1459 | float r; |
|
|
1460 | |
|
|
1461 | #if ECB_STDFP |
|
|
1462 | memcpy (&r, &x, 4); |
|
|
1463 | #else |
|
|
1464 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1465 | int neg = x >> 31; |
|
|
1466 | int e = (x >> 23) & 0xffU; |
|
|
1467 | |
|
|
1468 | x &= 0x7fffffU; |
|
|
1469 | |
|
|
1470 | if (e) |
|
|
1471 | x |= 0x800000U; |
|
|
1472 | else |
|
|
1473 | e = 1; |
|
|
1474 | |
|
|
1475 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1476 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1477 | |
|
|
1478 | r = neg ? -r : r; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a double to ieee double/binary64 */ |
|
|
1485 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1486 | ecb_function_ ecb_const uint64_t |
|
|
1487 | ecb_double_to_binary64 (double x) |
|
|
1488 | { |
|
|
1489 | uint64_t r; |
|
|
1490 | |
|
|
1491 | #if ECB_STDFP |
|
|
1492 | memcpy (&r, &x, 8); |
|
|
1493 | #else |
|
|
1494 | /* slow emulation, works for anything but -0 */ |
|
|
1495 | uint64_t m; |
|
|
1496 | int e; |
|
|
1497 | |
|
|
1498 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1499 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1500 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1501 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1502 | |
|
|
1503 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1504 | |
|
|
1505 | r = m & 0x8000000000000000;; |
|
|
1506 | |
|
|
1507 | if (r) |
|
|
1508 | m = -m; |
|
|
1509 | |
|
|
1510 | if (e <= -1022) |
|
|
1511 | { |
|
|
1512 | m &= 0x1fffffffffffffU; |
|
|
1513 | m >>= (-1021 - e); |
|
|
1514 | e = -1022; |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1518 | r |= m & 0xfffffffffffffU; |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | return r; |
|
|
1522 | } |
|
|
1523 | |
|
|
1524 | /* converts an ieee double/binary64 to a double */ |
|
|
1525 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1526 | ecb_function_ ecb_const double |
|
|
1527 | ecb_binary64_to_double (uint64_t x) |
|
|
1528 | { |
|
|
1529 | double r; |
|
|
1530 | |
|
|
1531 | #if ECB_STDFP |
|
|
1532 | memcpy (&r, &x, 8); |
|
|
1533 | #else |
|
|
1534 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1535 | int neg = x >> 63; |
|
|
1536 | int e = (x >> 52) & 0x7ffU; |
|
|
1537 | |
|
|
1538 | x &= 0xfffffffffffffU; |
|
|
1539 | |
|
|
1540 | if (e) |
|
|
1541 | x |= 0x10000000000000U; |
|
|
1542 | else |
|
|
1543 | e = 1; |
|
|
1544 | |
|
|
1545 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1546 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1547 | |
|
|
1548 | r = neg ? -r : r; |
|
|
1549 | #endif |
|
|
1550 | |
|
|
1551 | return r; |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | /* convert a float to ieee half/binary16 */ |
|
|
1555 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1556 | ecb_function_ ecb_const uint16_t |
|
|
1557 | ecb_float_to_binary16 (float x) |
|
|
1558 | { |
|
|
1559 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | /* convert an ieee half/binary16 to float */ |
|
|
1563 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1564 | ecb_function_ ecb_const float |
|
|
1565 | ecb_binary16_to_float (uint16_t x) |
|
|
1566 | { |
|
|
1567 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1568 | } |
|
|
1569 | |
|
|
1570 | #endif |
|
|
1571 | |
985 | #endif |
1572 | #endif |
986 | |
1573 | |
987 | /* ECB.H END */ |
1574 | /* ECB.H END */ |
988 | |
1575 | |
989 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1576 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
990 | /* if your architecture doesn't need memory fences, e.g. because it is |
1577 | /* if your architecture doesn't need memory fences, e.g. because it is |
991 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1578 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
992 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1579 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
993 | * libev, in which cases the memory fences become nops. |
1580 | * libev, in which cases the memory fences become nops. |
994 | * alternatively, you can remove this #error and link against libpthread, |
1581 | * alternatively, you can remove this #error and link against libpthread, |
995 | * which will then provide the memory fences. |
1582 | * which will then provide the memory fences. |
996 | */ |
1583 | */ |
997 | # error "memory fences not defined for your architecture, please report" |
1584 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1001 | # define ECB_MEMORY_FENCE do { } while (0) |
1588 | # define ECB_MEMORY_FENCE do { } while (0) |
1002 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1589 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1003 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1590 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1004 | #endif |
1591 | #endif |
1005 | |
1592 | |
1006 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1007 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1008 | #define noinline ecb_noinline |
|
|
1009 | |
|
|
1010 | #define inline_size ecb_inline |
1593 | #define inline_size ecb_inline |
1011 | |
1594 | |
1012 | #if EV_FEATURE_CODE |
1595 | #if EV_FEATURE_CODE |
1013 | # define inline_speed ecb_inline |
1596 | # define inline_speed ecb_inline |
1014 | #else |
1597 | #else |
1015 | # define inline_speed static noinline |
1598 | # define inline_speed ecb_noinline static |
1016 | #endif |
1599 | #endif |
|
|
1600 | |
|
|
1601 | /*****************************************************************************/ |
|
|
1602 | /* raw syscall wrappers */ |
|
|
1603 | |
|
|
1604 | #if EV_NEED_SYSCALL |
|
|
1605 | |
|
|
1606 | #include <sys/syscall.h> |
|
|
1607 | |
|
|
1608 | /* |
|
|
1609 | * define some syscall wrappers for common architectures |
|
|
1610 | * this is mostly for nice looks during debugging, not performance. |
|
|
1611 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1612 | * enough for linux aio. |
|
|
1613 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1614 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1615 | */ |
|
|
1616 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1617 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1618 | |
|
|
1619 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1620 | ({ \ |
|
|
1621 | long res; \ |
|
|
1622 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1623 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1624 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1625 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1626 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1627 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1628 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1629 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1630 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1631 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1632 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1633 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1634 | __asm__ __volatile__ ( \ |
|
|
1635 | "syscall\n\t" \ |
|
|
1636 | : "=a" (res) \ |
|
|
1637 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1638 | : "cc", "r11", "cx", "memory"); \ |
|
|
1639 | errno = -res; \ |
|
|
1640 | res; \ |
|
|
1641 | }) |
|
|
1642 | |
|
|
1643 | #endif |
|
|
1644 | |
|
|
1645 | #ifdef ev_syscall |
|
|
1646 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1647 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1648 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1649 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1650 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1651 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1652 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1653 | #else |
|
|
1654 | #define ev_syscall0(nr) syscall (nr) |
|
|
1655 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1656 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1657 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1658 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1659 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1660 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1661 | #endif |
|
|
1662 | |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | /*****************************************************************************/ |
1017 | |
1666 | |
1018 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1667 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1019 | |
1668 | |
1020 | #if EV_MINPRI == EV_MAXPRI |
1669 | #if EV_MINPRI == EV_MAXPRI |
1021 | # define ABSPRI(w) (((W)w), 0) |
1670 | # define ABSPRI(w) (((W)w), 0) |
1022 | #else |
1671 | #else |
1023 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1672 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1024 | #endif |
1673 | #endif |
1025 | |
1674 | |
1026 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1675 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1027 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1028 | |
1676 | |
1029 | typedef ev_watcher *W; |
1677 | typedef ev_watcher *W; |
1030 | typedef ev_watcher_list *WL; |
1678 | typedef ev_watcher_list *WL; |
1031 | typedef ev_watcher_time *WT; |
1679 | typedef ev_watcher_time *WT; |
1032 | |
1680 | |
… | |
… | |
1057 | # include "ev_win32.c" |
1705 | # include "ev_win32.c" |
1058 | #endif |
1706 | #endif |
1059 | |
1707 | |
1060 | /*****************************************************************************/ |
1708 | /*****************************************************************************/ |
1061 | |
1709 | |
|
|
1710 | #if EV_USE_LINUXAIO |
|
|
1711 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1712 | #endif |
|
|
1713 | |
1062 | /* define a suitable floor function (only used by periodics atm) */ |
1714 | /* define a suitable floor function (only used by periodics atm) */ |
1063 | |
1715 | |
1064 | #if EV_USE_FLOOR |
1716 | #if EV_USE_FLOOR |
1065 | # include <math.h> |
1717 | # include <math.h> |
1066 | # define ev_floor(v) floor (v) |
1718 | # define ev_floor(v) floor (v) |
1067 | #else |
1719 | #else |
1068 | |
1720 | |
1069 | #include <float.h> |
1721 | #include <float.h> |
1070 | |
1722 | |
1071 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1723 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1724 | ecb_noinline |
1072 | static ev_tstamp noinline |
1725 | static ev_tstamp |
1073 | ev_floor (ev_tstamp v) |
1726 | ev_floor (ev_tstamp v) |
1074 | { |
1727 | { |
1075 | /* the choice of shift factor is not terribly important */ |
1728 | /* the choice of shift factor is not terribly important */ |
1076 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1729 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1077 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1730 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1078 | #else |
1731 | #else |
1079 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1732 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1080 | #endif |
1733 | #endif |
1081 | |
1734 | |
|
|
1735 | /* special treatment for negative arguments */ |
|
|
1736 | if (ecb_expect_false (v < 0.)) |
|
|
1737 | { |
|
|
1738 | ev_tstamp f = -ev_floor (-v); |
|
|
1739 | |
|
|
1740 | return f - (f == v ? 0 : 1); |
|
|
1741 | } |
|
|
1742 | |
1082 | /* argument too large for an unsigned long? */ |
1743 | /* argument too large for an unsigned long? then reduce it */ |
1083 | if (expect_false (v >= shift)) |
1744 | if (ecb_expect_false (v >= shift)) |
1084 | { |
1745 | { |
1085 | ev_tstamp f; |
1746 | ev_tstamp f; |
1086 | |
1747 | |
1087 | if (v == v - 1.) |
1748 | if (v == v - 1.) |
1088 | return v; /* very large number */ |
1749 | return v; /* very large numbers are assumed to be integer */ |
1089 | |
1750 | |
1090 | f = shift * ev_floor (v * (1. / shift)); |
1751 | f = shift * ev_floor (v * (1. / shift)); |
1091 | return f + ev_floor (v - f); |
1752 | return f + ev_floor (v - f); |
1092 | } |
1753 | } |
1093 | |
1754 | |
1094 | /* special treatment for negative args? */ |
|
|
1095 | if (expect_false (v < 0.)) |
|
|
1096 | { |
|
|
1097 | ev_tstamp f = -ev_floor (-v); |
|
|
1098 | |
|
|
1099 | return f - (f == v ? 0 : 1); |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | /* fits into an unsigned long */ |
1755 | /* fits into an unsigned long */ |
1103 | return (unsigned long)v; |
1756 | return (unsigned long)v; |
1104 | } |
1757 | } |
1105 | |
1758 | |
1106 | #endif |
1759 | #endif |
… | |
… | |
1109 | |
1762 | |
1110 | #ifdef __linux |
1763 | #ifdef __linux |
1111 | # include <sys/utsname.h> |
1764 | # include <sys/utsname.h> |
1112 | #endif |
1765 | #endif |
1113 | |
1766 | |
1114 | static unsigned int noinline ecb_cold |
1767 | ecb_noinline ecb_cold |
|
|
1768 | static unsigned int |
1115 | ev_linux_version (void) |
1769 | ev_linux_version (void) |
1116 | { |
1770 | { |
1117 | #ifdef __linux |
1771 | #ifdef __linux |
1118 | unsigned int v = 0; |
1772 | unsigned int v = 0; |
1119 | struct utsname buf; |
1773 | struct utsname buf; |
… | |
… | |
1148 | } |
1802 | } |
1149 | |
1803 | |
1150 | /*****************************************************************************/ |
1804 | /*****************************************************************************/ |
1151 | |
1805 | |
1152 | #if EV_AVOID_STDIO |
1806 | #if EV_AVOID_STDIO |
1153 | static void noinline ecb_cold |
1807 | ecb_noinline ecb_cold |
|
|
1808 | static void |
1154 | ev_printerr (const char *msg) |
1809 | ev_printerr (const char *msg) |
1155 | { |
1810 | { |
1156 | write (STDERR_FILENO, msg, strlen (msg)); |
1811 | write (STDERR_FILENO, msg, strlen (msg)); |
1157 | } |
1812 | } |
1158 | #endif |
1813 | #endif |
1159 | |
1814 | |
1160 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1815 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1161 | |
1816 | |
1162 | void ecb_cold |
1817 | ecb_cold |
|
|
1818 | void |
1163 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1819 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1164 | { |
1820 | { |
1165 | syserr_cb = cb; |
1821 | syserr_cb = cb; |
1166 | } |
1822 | } |
1167 | |
1823 | |
1168 | static void noinline ecb_cold |
1824 | ecb_noinline ecb_cold |
|
|
1825 | static void |
1169 | ev_syserr (const char *msg) |
1826 | ev_syserr (const char *msg) |
1170 | { |
1827 | { |
1171 | if (!msg) |
1828 | if (!msg) |
1172 | msg = "(libev) system error"; |
1829 | msg = "(libev) system error"; |
1173 | |
1830 | |
… | |
… | |
1186 | abort (); |
1843 | abort (); |
1187 | } |
1844 | } |
1188 | } |
1845 | } |
1189 | |
1846 | |
1190 | static void * |
1847 | static void * |
1191 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1848 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1192 | { |
1849 | { |
1193 | #if __GLIBC__ |
|
|
1194 | return realloc (ptr, size); |
|
|
1195 | #else |
|
|
1196 | /* some systems, notably openbsd and darwin, fail to properly |
1850 | /* some systems, notably openbsd and darwin, fail to properly |
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1851 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1198 | * the single unix specification, so work around them here. |
1852 | * the single unix specification, so work around them here. |
|
|
1853 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1854 | * despite documenting it otherwise. |
1199 | */ |
1855 | */ |
1200 | |
1856 | |
1201 | if (size) |
1857 | if (size) |
1202 | return realloc (ptr, size); |
1858 | return realloc (ptr, size); |
1203 | |
1859 | |
1204 | free (ptr); |
1860 | free (ptr); |
1205 | return 0; |
1861 | return 0; |
1206 | #endif |
|
|
1207 | } |
1862 | } |
1208 | |
1863 | |
1209 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1864 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1210 | |
1865 | |
1211 | void ecb_cold |
1866 | ecb_cold |
|
|
1867 | void |
1212 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1868 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1213 | { |
1869 | { |
1214 | alloc = cb; |
1870 | alloc = cb; |
1215 | } |
1871 | } |
1216 | |
1872 | |
1217 | inline_speed void * |
1873 | inline_speed void * |
… | |
… | |
1244 | typedef struct |
1900 | typedef struct |
1245 | { |
1901 | { |
1246 | WL head; |
1902 | WL head; |
1247 | unsigned char events; /* the events watched for */ |
1903 | unsigned char events; /* the events watched for */ |
1248 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1904 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1249 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1905 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1250 | unsigned char unused; |
1906 | unsigned char eflags; /* flags field for use by backends */ |
1251 | #if EV_USE_EPOLL |
1907 | #if EV_USE_EPOLL |
1252 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1908 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1253 | #endif |
1909 | #endif |
1254 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1910 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1255 | SOCKET handle; |
1911 | SOCKET handle; |
… | |
… | |
1319 | static int ev_default_loop_ptr; |
1975 | static int ev_default_loop_ptr; |
1320 | |
1976 | |
1321 | #endif |
1977 | #endif |
1322 | |
1978 | |
1323 | #if EV_FEATURE_API |
1979 | #if EV_FEATURE_API |
1324 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1980 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1325 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1981 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1326 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1982 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1327 | #else |
1983 | #else |
1328 | # define EV_RELEASE_CB (void)0 |
1984 | # define EV_RELEASE_CB (void)0 |
1329 | # define EV_ACQUIRE_CB (void)0 |
1985 | # define EV_ACQUIRE_CB (void)0 |
1330 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1986 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1334 | |
1990 | |
1335 | /*****************************************************************************/ |
1991 | /*****************************************************************************/ |
1336 | |
1992 | |
1337 | #ifndef EV_HAVE_EV_TIME |
1993 | #ifndef EV_HAVE_EV_TIME |
1338 | ev_tstamp |
1994 | ev_tstamp |
1339 | ev_time (void) EV_THROW |
1995 | ev_time (void) EV_NOEXCEPT |
1340 | { |
1996 | { |
1341 | #if EV_USE_REALTIME |
1997 | #if EV_USE_REALTIME |
1342 | if (expect_true (have_realtime)) |
1998 | if (ecb_expect_true (have_realtime)) |
1343 | { |
1999 | { |
1344 | struct timespec ts; |
2000 | struct timespec ts; |
1345 | clock_gettime (CLOCK_REALTIME, &ts); |
2001 | clock_gettime (CLOCK_REALTIME, &ts); |
1346 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2002 | return EV_TS_GET (ts); |
1347 | } |
2003 | } |
1348 | #endif |
2004 | #endif |
1349 | |
2005 | |
1350 | struct timeval tv; |
2006 | struct timeval tv; |
1351 | gettimeofday (&tv, 0); |
2007 | gettimeofday (&tv, 0); |
1352 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2008 | return EV_TV_GET (tv); |
1353 | } |
2009 | } |
1354 | #endif |
2010 | #endif |
1355 | |
2011 | |
1356 | inline_size ev_tstamp |
2012 | inline_size ev_tstamp |
1357 | get_clock (void) |
2013 | get_clock (void) |
1358 | { |
2014 | { |
1359 | #if EV_USE_MONOTONIC |
2015 | #if EV_USE_MONOTONIC |
1360 | if (expect_true (have_monotonic)) |
2016 | if (ecb_expect_true (have_monotonic)) |
1361 | { |
2017 | { |
1362 | struct timespec ts; |
2018 | struct timespec ts; |
1363 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2019 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1364 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2020 | return EV_TS_GET (ts); |
1365 | } |
2021 | } |
1366 | #endif |
2022 | #endif |
1367 | |
2023 | |
1368 | return ev_time (); |
2024 | return ev_time (); |
1369 | } |
2025 | } |
1370 | |
2026 | |
1371 | #if EV_MULTIPLICITY |
2027 | #if EV_MULTIPLICITY |
1372 | ev_tstamp |
2028 | ev_tstamp |
1373 | ev_now (EV_P) EV_THROW |
2029 | ev_now (EV_P) EV_NOEXCEPT |
1374 | { |
2030 | { |
1375 | return ev_rt_now; |
2031 | return ev_rt_now; |
1376 | } |
2032 | } |
1377 | #endif |
2033 | #endif |
1378 | |
2034 | |
1379 | void |
2035 | void |
1380 | ev_sleep (ev_tstamp delay) EV_THROW |
2036 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1381 | { |
2037 | { |
1382 | if (delay > 0.) |
2038 | if (delay > 0.) |
1383 | { |
2039 | { |
1384 | #if EV_USE_NANOSLEEP |
2040 | #if EV_USE_NANOSLEEP |
1385 | struct timespec ts; |
2041 | struct timespec ts; |
1386 | |
2042 | |
1387 | EV_TS_SET (ts, delay); |
2043 | EV_TS_SET (ts, delay); |
1388 | nanosleep (&ts, 0); |
2044 | nanosleep (&ts, 0); |
1389 | #elif defined _WIN32 |
2045 | #elif defined _WIN32 |
|
|
2046 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2047 | /* compared to select (µs) or nanosleep (ns) */ |
1390 | Sleep ((unsigned long)(delay * 1e3)); |
2048 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1391 | #else |
2049 | #else |
1392 | struct timeval tv; |
2050 | struct timeval tv; |
1393 | |
2051 | |
1394 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2052 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1395 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2053 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1425 | } |
2083 | } |
1426 | |
2084 | |
1427 | return ncur; |
2085 | return ncur; |
1428 | } |
2086 | } |
1429 | |
2087 | |
1430 | static void * noinline ecb_cold |
2088 | ecb_noinline ecb_cold |
|
|
2089 | static void * |
1431 | array_realloc (int elem, void *base, int *cur, int cnt) |
2090 | array_realloc (int elem, void *base, int *cur, int cnt) |
1432 | { |
2091 | { |
1433 | *cur = array_nextsize (elem, *cur, cnt); |
2092 | *cur = array_nextsize (elem, *cur, cnt); |
1434 | return ev_realloc (base, elem * *cur); |
2093 | return ev_realloc (base, elem * *cur); |
1435 | } |
2094 | } |
1436 | |
2095 | |
|
|
2096 | #define array_needsize_noinit(base,offset,count) |
|
|
2097 | |
1437 | #define array_init_zero(base,count) \ |
2098 | #define array_needsize_zerofill(base,offset,count) \ |
1438 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2099 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1439 | |
2100 | |
1440 | #define array_needsize(type,base,cur,cnt,init) \ |
2101 | #define array_needsize(type,base,cur,cnt,init) \ |
1441 | if (expect_false ((cnt) > (cur))) \ |
2102 | if (ecb_expect_false ((cnt) > (cur))) \ |
1442 | { \ |
2103 | { \ |
1443 | int ecb_unused ocur_ = (cur); \ |
2104 | ecb_unused int ocur_ = (cur); \ |
1444 | (base) = (type *)array_realloc \ |
2105 | (base) = (type *)array_realloc \ |
1445 | (sizeof (type), (base), &(cur), (cnt)); \ |
2106 | (sizeof (type), (base), &(cur), (cnt)); \ |
1446 | init ((base) + (ocur_), (cur) - ocur_); \ |
2107 | init ((base), ocur_, ((cur) - ocur_)); \ |
1447 | } |
2108 | } |
1448 | |
2109 | |
1449 | #if 0 |
2110 | #if 0 |
1450 | #define array_slim(type,stem) \ |
2111 | #define array_slim(type,stem) \ |
1451 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2112 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2121 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1461 | |
2122 | |
1462 | /*****************************************************************************/ |
2123 | /*****************************************************************************/ |
1463 | |
2124 | |
1464 | /* dummy callback for pending events */ |
2125 | /* dummy callback for pending events */ |
1465 | static void noinline |
2126 | ecb_noinline |
|
|
2127 | static void |
1466 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2128 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1467 | { |
2129 | { |
1468 | } |
2130 | } |
1469 | |
2131 | |
1470 | void noinline |
2132 | ecb_noinline |
|
|
2133 | void |
1471 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2134 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1472 | { |
2135 | { |
1473 | W w_ = (W)w; |
2136 | W w_ = (W)w; |
1474 | int pri = ABSPRI (w_); |
2137 | int pri = ABSPRI (w_); |
1475 | |
2138 | |
1476 | if (expect_false (w_->pending)) |
2139 | if (ecb_expect_false (w_->pending)) |
1477 | pendings [pri][w_->pending - 1].events |= revents; |
2140 | pendings [pri][w_->pending - 1].events |= revents; |
1478 | else |
2141 | else |
1479 | { |
2142 | { |
1480 | w_->pending = ++pendingcnt [pri]; |
2143 | w_->pending = ++pendingcnt [pri]; |
1481 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2144 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1482 | pendings [pri][w_->pending - 1].w = w_; |
2145 | pendings [pri][w_->pending - 1].w = w_; |
1483 | pendings [pri][w_->pending - 1].events = revents; |
2146 | pendings [pri][w_->pending - 1].events = revents; |
1484 | } |
2147 | } |
1485 | |
2148 | |
1486 | pendingpri = NUMPRI - 1; |
2149 | pendingpri = NUMPRI - 1; |
1487 | } |
2150 | } |
1488 | |
2151 | |
1489 | inline_speed void |
2152 | inline_speed void |
1490 | feed_reverse (EV_P_ W w) |
2153 | feed_reverse (EV_P_ W w) |
1491 | { |
2154 | { |
1492 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2155 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1493 | rfeeds [rfeedcnt++] = w; |
2156 | rfeeds [rfeedcnt++] = w; |
1494 | } |
2157 | } |
1495 | |
2158 | |
1496 | inline_size void |
2159 | inline_size void |
1497 | feed_reverse_done (EV_P_ int revents) |
2160 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1532 | inline_speed void |
2195 | inline_speed void |
1533 | fd_event (EV_P_ int fd, int revents) |
2196 | fd_event (EV_P_ int fd, int revents) |
1534 | { |
2197 | { |
1535 | ANFD *anfd = anfds + fd; |
2198 | ANFD *anfd = anfds + fd; |
1536 | |
2199 | |
1537 | if (expect_true (!anfd->reify)) |
2200 | if (ecb_expect_true (!anfd->reify)) |
1538 | fd_event_nocheck (EV_A_ fd, revents); |
2201 | fd_event_nocheck (EV_A_ fd, revents); |
1539 | } |
2202 | } |
1540 | |
2203 | |
1541 | void |
2204 | void |
1542 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2205 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1543 | { |
2206 | { |
1544 | if (fd >= 0 && fd < anfdmax) |
2207 | if (fd >= 0 && fd < anfdmax) |
1545 | fd_event_nocheck (EV_A_ fd, revents); |
2208 | fd_event_nocheck (EV_A_ fd, revents); |
1546 | } |
2209 | } |
1547 | |
2210 | |
… | |
… | |
1584 | ev_io *w; |
2247 | ev_io *w; |
1585 | |
2248 | |
1586 | unsigned char o_events = anfd->events; |
2249 | unsigned char o_events = anfd->events; |
1587 | unsigned char o_reify = anfd->reify; |
2250 | unsigned char o_reify = anfd->reify; |
1588 | |
2251 | |
1589 | anfd->reify = 0; |
2252 | anfd->reify = 0; |
1590 | |
2253 | |
1591 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2254 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1592 | { |
2255 | { |
1593 | anfd->events = 0; |
2256 | anfd->events = 0; |
1594 | |
2257 | |
1595 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2258 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1596 | anfd->events |= (unsigned char)w->events; |
2259 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1605 | |
2268 | |
1606 | fdchangecnt = 0; |
2269 | fdchangecnt = 0; |
1607 | } |
2270 | } |
1608 | |
2271 | |
1609 | /* something about the given fd changed */ |
2272 | /* something about the given fd changed */ |
1610 | inline_size void |
2273 | inline_size |
|
|
2274 | void |
1611 | fd_change (EV_P_ int fd, int flags) |
2275 | fd_change (EV_P_ int fd, int flags) |
1612 | { |
2276 | { |
1613 | unsigned char reify = anfds [fd].reify; |
2277 | unsigned char reify = anfds [fd].reify; |
1614 | anfds [fd].reify |= flags; |
2278 | anfds [fd].reify |= flags; |
1615 | |
2279 | |
1616 | if (expect_true (!reify)) |
2280 | if (ecb_expect_true (!reify)) |
1617 | { |
2281 | { |
1618 | ++fdchangecnt; |
2282 | ++fdchangecnt; |
1619 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2283 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1620 | fdchanges [fdchangecnt - 1] = fd; |
2284 | fdchanges [fdchangecnt - 1] = fd; |
1621 | } |
2285 | } |
1622 | } |
2286 | } |
1623 | |
2287 | |
1624 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2288 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1625 | inline_speed void ecb_cold |
2289 | inline_speed ecb_cold void |
1626 | fd_kill (EV_P_ int fd) |
2290 | fd_kill (EV_P_ int fd) |
1627 | { |
2291 | { |
1628 | ev_io *w; |
2292 | ev_io *w; |
1629 | |
2293 | |
1630 | while ((w = (ev_io *)anfds [fd].head)) |
2294 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1633 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2297 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1634 | } |
2298 | } |
1635 | } |
2299 | } |
1636 | |
2300 | |
1637 | /* check whether the given fd is actually valid, for error recovery */ |
2301 | /* check whether the given fd is actually valid, for error recovery */ |
1638 | inline_size int ecb_cold |
2302 | inline_size ecb_cold int |
1639 | fd_valid (int fd) |
2303 | fd_valid (int fd) |
1640 | { |
2304 | { |
1641 | #ifdef _WIN32 |
2305 | #ifdef _WIN32 |
1642 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2306 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1643 | #else |
2307 | #else |
1644 | return fcntl (fd, F_GETFD) != -1; |
2308 | return fcntl (fd, F_GETFD) != -1; |
1645 | #endif |
2309 | #endif |
1646 | } |
2310 | } |
1647 | |
2311 | |
1648 | /* called on EBADF to verify fds */ |
2312 | /* called on EBADF to verify fds */ |
1649 | static void noinline ecb_cold |
2313 | ecb_noinline ecb_cold |
|
|
2314 | static void |
1650 | fd_ebadf (EV_P) |
2315 | fd_ebadf (EV_P) |
1651 | { |
2316 | { |
1652 | int fd; |
2317 | int fd; |
1653 | |
2318 | |
1654 | for (fd = 0; fd < anfdmax; ++fd) |
2319 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1656 | if (!fd_valid (fd) && errno == EBADF) |
2321 | if (!fd_valid (fd) && errno == EBADF) |
1657 | fd_kill (EV_A_ fd); |
2322 | fd_kill (EV_A_ fd); |
1658 | } |
2323 | } |
1659 | |
2324 | |
1660 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2325 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1661 | static void noinline ecb_cold |
2326 | ecb_noinline ecb_cold |
|
|
2327 | static void |
1662 | fd_enomem (EV_P) |
2328 | fd_enomem (EV_P) |
1663 | { |
2329 | { |
1664 | int fd; |
2330 | int fd; |
1665 | |
2331 | |
1666 | for (fd = anfdmax; fd--; ) |
2332 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1670 | break; |
2336 | break; |
1671 | } |
2337 | } |
1672 | } |
2338 | } |
1673 | |
2339 | |
1674 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2340 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1675 | static void noinline |
2341 | ecb_noinline |
|
|
2342 | static void |
1676 | fd_rearm_all (EV_P) |
2343 | fd_rearm_all (EV_P) |
1677 | { |
2344 | { |
1678 | int fd; |
2345 | int fd; |
1679 | |
2346 | |
1680 | for (fd = 0; fd < anfdmax; ++fd) |
2347 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1733 | ev_tstamp minat; |
2400 | ev_tstamp minat; |
1734 | ANHE *minpos; |
2401 | ANHE *minpos; |
1735 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2402 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1736 | |
2403 | |
1737 | /* find minimum child */ |
2404 | /* find minimum child */ |
1738 | if (expect_true (pos + DHEAP - 1 < E)) |
2405 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1739 | { |
2406 | { |
1740 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2407 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1741 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2408 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1742 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2409 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1743 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2410 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1744 | } |
2411 | } |
1745 | else if (pos < E) |
2412 | else if (pos < E) |
1746 | { |
2413 | { |
1747 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2414 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1748 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2415 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1749 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2416 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1750 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2417 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1751 | } |
2418 | } |
1752 | else |
2419 | else |
1753 | break; |
2420 | break; |
1754 | |
2421 | |
1755 | if (ANHE_at (he) <= minat) |
2422 | if (ANHE_at (he) <= minat) |
… | |
… | |
1763 | |
2430 | |
1764 | heap [k] = he; |
2431 | heap [k] = he; |
1765 | ev_active (ANHE_w (he)) = k; |
2432 | ev_active (ANHE_w (he)) = k; |
1766 | } |
2433 | } |
1767 | |
2434 | |
1768 | #else /* 4HEAP */ |
2435 | #else /* not 4HEAP */ |
1769 | |
2436 | |
1770 | #define HEAP0 1 |
2437 | #define HEAP0 1 |
1771 | #define HPARENT(k) ((k) >> 1) |
2438 | #define HPARENT(k) ((k) >> 1) |
1772 | #define UPHEAP_DONE(p,k) (!(p)) |
2439 | #define UPHEAP_DONE(p,k) (!(p)) |
1773 | |
2440 | |
… | |
… | |
1861 | |
2528 | |
1862 | /*****************************************************************************/ |
2529 | /*****************************************************************************/ |
1863 | |
2530 | |
1864 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2531 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1865 | |
2532 | |
1866 | static void noinline ecb_cold |
2533 | ecb_noinline ecb_cold |
|
|
2534 | static void |
1867 | evpipe_init (EV_P) |
2535 | evpipe_init (EV_P) |
1868 | { |
2536 | { |
1869 | if (!ev_is_active (&pipe_w)) |
2537 | if (!ev_is_active (&pipe_w)) |
1870 | { |
2538 | { |
|
|
2539 | int fds [2]; |
|
|
2540 | |
1871 | # if EV_USE_EVENTFD |
2541 | # if EV_USE_EVENTFD |
|
|
2542 | fds [0] = -1; |
1872 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2543 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1873 | if (evfd < 0 && errno == EINVAL) |
2544 | if (fds [1] < 0 && errno == EINVAL) |
1874 | evfd = eventfd (0, 0); |
2545 | fds [1] = eventfd (0, 0); |
1875 | |
2546 | |
1876 | if (evfd >= 0) |
2547 | if (fds [1] < 0) |
1877 | { |
|
|
1878 | evpipe [0] = -1; |
|
|
1879 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1880 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1881 | } |
|
|
1882 | else |
|
|
1883 | # endif |
2548 | # endif |
1884 | { |
2549 | { |
1885 | while (pipe (evpipe)) |
2550 | while (pipe (fds)) |
1886 | ev_syserr ("(libev) error creating signal/async pipe"); |
2551 | ev_syserr ("(libev) error creating signal/async pipe"); |
1887 | |
2552 | |
1888 | fd_intern (evpipe [0]); |
2553 | fd_intern (fds [0]); |
1889 | fd_intern (evpipe [1]); |
|
|
1890 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1891 | } |
2554 | } |
1892 | |
2555 | |
|
|
2556 | evpipe [0] = fds [0]; |
|
|
2557 | |
|
|
2558 | if (evpipe [1] < 0) |
|
|
2559 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2560 | else |
|
|
2561 | { |
|
|
2562 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2563 | /* so that evpipe_write can always rely on its value. */ |
|
|
2564 | /* this branch does not do anything sensible on windows, */ |
|
|
2565 | /* so must not be executed on windows */ |
|
|
2566 | |
|
|
2567 | dup2 (fds [1], evpipe [1]); |
|
|
2568 | close (fds [1]); |
|
|
2569 | } |
|
|
2570 | |
|
|
2571 | fd_intern (evpipe [1]); |
|
|
2572 | |
|
|
2573 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1893 | ev_io_start (EV_A_ &pipe_w); |
2574 | ev_io_start (EV_A_ &pipe_w); |
1894 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2575 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1895 | } |
2576 | } |
1896 | } |
2577 | } |
1897 | |
2578 | |
1898 | inline_speed void |
2579 | inline_speed void |
1899 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2580 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1900 | { |
2581 | { |
1901 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2582 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1902 | |
2583 | |
1903 | if (expect_true (*flag)) |
2584 | if (ecb_expect_true (*flag)) |
1904 | return; |
2585 | return; |
1905 | |
2586 | |
1906 | *flag = 1; |
2587 | *flag = 1; |
1907 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2588 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1908 | |
2589 | |
… | |
… | |
1918 | ECB_MEMORY_FENCE_RELEASE; |
2599 | ECB_MEMORY_FENCE_RELEASE; |
1919 | |
2600 | |
1920 | old_errno = errno; /* save errno because write will clobber it */ |
2601 | old_errno = errno; /* save errno because write will clobber it */ |
1921 | |
2602 | |
1922 | #if EV_USE_EVENTFD |
2603 | #if EV_USE_EVENTFD |
1923 | if (evfd >= 0) |
2604 | if (evpipe [0] < 0) |
1924 | { |
2605 | { |
1925 | uint64_t counter = 1; |
2606 | uint64_t counter = 1; |
1926 | write (evfd, &counter, sizeof (uint64_t)); |
2607 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1927 | } |
2608 | } |
1928 | else |
2609 | else |
1929 | #endif |
2610 | #endif |
1930 | { |
2611 | { |
1931 | #ifdef _WIN32 |
2612 | #ifdef _WIN32 |
1932 | WSABUF buf; |
2613 | WSABUF buf; |
1933 | DWORD sent; |
2614 | DWORD sent; |
1934 | buf.buf = &buf; |
2615 | buf.buf = (char *)&buf; |
1935 | buf.len = 1; |
2616 | buf.len = 1; |
1936 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2617 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1937 | #else |
2618 | #else |
1938 | write (evpipe [1], &(evpipe [1]), 1); |
2619 | write (evpipe [1], &(evpipe [1]), 1); |
1939 | #endif |
2620 | #endif |
… | |
… | |
1951 | int i; |
2632 | int i; |
1952 | |
2633 | |
1953 | if (revents & EV_READ) |
2634 | if (revents & EV_READ) |
1954 | { |
2635 | { |
1955 | #if EV_USE_EVENTFD |
2636 | #if EV_USE_EVENTFD |
1956 | if (evfd >= 0) |
2637 | if (evpipe [0] < 0) |
1957 | { |
2638 | { |
1958 | uint64_t counter; |
2639 | uint64_t counter; |
1959 | read (evfd, &counter, sizeof (uint64_t)); |
2640 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1960 | } |
2641 | } |
1961 | else |
2642 | else |
1962 | #endif |
2643 | #endif |
1963 | { |
2644 | { |
1964 | char dummy[4]; |
2645 | char dummy[4]; |
… | |
… | |
1985 | sig_pending = 0; |
2666 | sig_pending = 0; |
1986 | |
2667 | |
1987 | ECB_MEMORY_FENCE; |
2668 | ECB_MEMORY_FENCE; |
1988 | |
2669 | |
1989 | for (i = EV_NSIG - 1; i--; ) |
2670 | for (i = EV_NSIG - 1; i--; ) |
1990 | if (expect_false (signals [i].pending)) |
2671 | if (ecb_expect_false (signals [i].pending)) |
1991 | ev_feed_signal_event (EV_A_ i + 1); |
2672 | ev_feed_signal_event (EV_A_ i + 1); |
1992 | } |
2673 | } |
1993 | #endif |
2674 | #endif |
1994 | |
2675 | |
1995 | #if EV_ASYNC_ENABLE |
2676 | #if EV_ASYNC_ENABLE |
… | |
… | |
2011 | } |
2692 | } |
2012 | |
2693 | |
2013 | /*****************************************************************************/ |
2694 | /*****************************************************************************/ |
2014 | |
2695 | |
2015 | void |
2696 | void |
2016 | ev_feed_signal (int signum) EV_THROW |
2697 | ev_feed_signal (int signum) EV_NOEXCEPT |
2017 | { |
2698 | { |
2018 | #if EV_MULTIPLICITY |
2699 | #if EV_MULTIPLICITY |
|
|
2700 | EV_P; |
|
|
2701 | ECB_MEMORY_FENCE_ACQUIRE; |
2019 | EV_P = signals [signum - 1].loop; |
2702 | EV_A = signals [signum - 1].loop; |
2020 | |
2703 | |
2021 | if (!EV_A) |
2704 | if (!EV_A) |
2022 | return; |
2705 | return; |
2023 | #endif |
2706 | #endif |
2024 | |
2707 | |
2025 | if (!ev_active (&pipe_w)) |
|
|
2026 | return; |
|
|
2027 | |
|
|
2028 | signals [signum - 1].pending = 1; |
2708 | signals [signum - 1].pending = 1; |
2029 | evpipe_write (EV_A_ &sig_pending); |
2709 | evpipe_write (EV_A_ &sig_pending); |
2030 | } |
2710 | } |
2031 | |
2711 | |
2032 | static void |
2712 | static void |
… | |
… | |
2037 | #endif |
2717 | #endif |
2038 | |
2718 | |
2039 | ev_feed_signal (signum); |
2719 | ev_feed_signal (signum); |
2040 | } |
2720 | } |
2041 | |
2721 | |
2042 | void noinline |
2722 | ecb_noinline |
|
|
2723 | void |
2043 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2724 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2044 | { |
2725 | { |
2045 | WL w; |
2726 | WL w; |
2046 | |
2727 | |
2047 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2728 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2048 | return; |
2729 | return; |
2049 | |
2730 | |
2050 | --signum; |
2731 | --signum; |
2051 | |
2732 | |
2052 | #if EV_MULTIPLICITY |
2733 | #if EV_MULTIPLICITY |
2053 | /* it is permissible to try to feed a signal to the wrong loop */ |
2734 | /* it is permissible to try to feed a signal to the wrong loop */ |
2054 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2735 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2055 | |
2736 | |
2056 | if (expect_false (signals [signum].loop != EV_A)) |
2737 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2057 | return; |
2738 | return; |
2058 | #endif |
2739 | #endif |
2059 | |
2740 | |
2060 | signals [signum].pending = 0; |
2741 | signals [signum].pending = 0; |
2061 | ECB_MEMORY_FENCE_RELEASE; |
2742 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2157 | # include "ev_kqueue.c" |
2838 | # include "ev_kqueue.c" |
2158 | #endif |
2839 | #endif |
2159 | #if EV_USE_EPOLL |
2840 | #if EV_USE_EPOLL |
2160 | # include "ev_epoll.c" |
2841 | # include "ev_epoll.c" |
2161 | #endif |
2842 | #endif |
|
|
2843 | #if EV_USE_LINUXAIO |
|
|
2844 | # include "ev_linuxaio.c" |
|
|
2845 | #endif |
|
|
2846 | #if EV_USE_IOURING |
|
|
2847 | # include "ev_iouring.c" |
|
|
2848 | #endif |
2162 | #if EV_USE_POLL |
2849 | #if EV_USE_POLL |
2163 | # include "ev_poll.c" |
2850 | # include "ev_poll.c" |
2164 | #endif |
2851 | #endif |
2165 | #if EV_USE_SELECT |
2852 | #if EV_USE_SELECT |
2166 | # include "ev_select.c" |
2853 | # include "ev_select.c" |
2167 | #endif |
2854 | #endif |
2168 | |
2855 | |
2169 | int ecb_cold |
2856 | ecb_cold int |
2170 | ev_version_major (void) EV_THROW |
2857 | ev_version_major (void) EV_NOEXCEPT |
2171 | { |
2858 | { |
2172 | return EV_VERSION_MAJOR; |
2859 | return EV_VERSION_MAJOR; |
2173 | } |
2860 | } |
2174 | |
2861 | |
2175 | int ecb_cold |
2862 | ecb_cold int |
2176 | ev_version_minor (void) EV_THROW |
2863 | ev_version_minor (void) EV_NOEXCEPT |
2177 | { |
2864 | { |
2178 | return EV_VERSION_MINOR; |
2865 | return EV_VERSION_MINOR; |
2179 | } |
2866 | } |
2180 | |
2867 | |
2181 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2868 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2182 | int inline_size ecb_cold |
2869 | inline_size ecb_cold int |
2183 | enable_secure (void) |
2870 | enable_secure (void) |
2184 | { |
2871 | { |
2185 | #ifdef _WIN32 |
2872 | #ifdef _WIN32 |
2186 | return 0; |
2873 | return 0; |
2187 | #else |
2874 | #else |
2188 | return getuid () != geteuid () |
2875 | return getuid () != geteuid () |
2189 | || getgid () != getegid (); |
2876 | || getgid () != getegid (); |
2190 | #endif |
2877 | #endif |
2191 | } |
2878 | } |
2192 | |
2879 | |
2193 | unsigned int ecb_cold |
2880 | ecb_cold |
|
|
2881 | unsigned int |
2194 | ev_supported_backends (void) EV_THROW |
2882 | ev_supported_backends (void) EV_NOEXCEPT |
2195 | { |
2883 | { |
2196 | unsigned int flags = 0; |
2884 | unsigned int flags = 0; |
2197 | |
2885 | |
2198 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2886 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2199 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2887 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2200 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2888 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2889 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2890 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
2201 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2891 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2202 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2892 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2203 | |
2893 | |
2204 | return flags; |
2894 | return flags; |
2205 | } |
2895 | } |
2206 | |
2896 | |
2207 | unsigned int ecb_cold |
2897 | ecb_cold |
|
|
2898 | unsigned int |
2208 | ev_recommended_backends (void) EV_THROW |
2899 | ev_recommended_backends (void) EV_NOEXCEPT |
2209 | { |
2900 | { |
2210 | unsigned int flags = ev_supported_backends (); |
2901 | unsigned int flags = ev_supported_backends (); |
2211 | |
2902 | |
2212 | #ifndef __NetBSD__ |
2903 | #ifndef __NetBSD__ |
2213 | /* kqueue is borked on everything but netbsd apparently */ |
2904 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2221 | #endif |
2912 | #endif |
2222 | #ifdef __FreeBSD__ |
2913 | #ifdef __FreeBSD__ |
2223 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2914 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2224 | #endif |
2915 | #endif |
2225 | |
2916 | |
|
|
2917 | /* TODO: linuxaio is very experimental */ |
|
|
2918 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2919 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2920 | #endif |
|
|
2921 | /* TODO: linuxaio is super experimental */ |
|
|
2922 | #if !EV_RECOMMEND_IOURING |
|
|
2923 | flags &= ~EVBACKEND_IOURING; |
|
|
2924 | #endif |
|
|
2925 | |
2226 | return flags; |
2926 | return flags; |
2227 | } |
2927 | } |
2228 | |
2928 | |
2229 | unsigned int ecb_cold |
2929 | ecb_cold |
|
|
2930 | unsigned int |
2230 | ev_embeddable_backends (void) EV_THROW |
2931 | ev_embeddable_backends (void) EV_NOEXCEPT |
2231 | { |
2932 | { |
2232 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2933 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2233 | |
2934 | |
2234 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2935 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2235 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2936 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2236 | flags &= ~EVBACKEND_EPOLL; |
2937 | flags &= ~EVBACKEND_EPOLL; |
2237 | |
2938 | |
|
|
2939 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2940 | |
|
|
2941 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2942 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2943 | * if the kernel ever is fixed, this might change... |
|
|
2944 | */ |
|
|
2945 | |
2238 | return flags; |
2946 | return flags; |
2239 | } |
2947 | } |
2240 | |
2948 | |
2241 | unsigned int |
2949 | unsigned int |
2242 | ev_backend (EV_P) EV_THROW |
2950 | ev_backend (EV_P) EV_NOEXCEPT |
2243 | { |
2951 | { |
2244 | return backend; |
2952 | return backend; |
2245 | } |
2953 | } |
2246 | |
2954 | |
2247 | #if EV_FEATURE_API |
2955 | #if EV_FEATURE_API |
2248 | unsigned int |
2956 | unsigned int |
2249 | ev_iteration (EV_P) EV_THROW |
2957 | ev_iteration (EV_P) EV_NOEXCEPT |
2250 | { |
2958 | { |
2251 | return loop_count; |
2959 | return loop_count; |
2252 | } |
2960 | } |
2253 | |
2961 | |
2254 | unsigned int |
2962 | unsigned int |
2255 | ev_depth (EV_P) EV_THROW |
2963 | ev_depth (EV_P) EV_NOEXCEPT |
2256 | { |
2964 | { |
2257 | return loop_depth; |
2965 | return loop_depth; |
2258 | } |
2966 | } |
2259 | |
2967 | |
2260 | void |
2968 | void |
2261 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2969 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2262 | { |
2970 | { |
2263 | io_blocktime = interval; |
2971 | io_blocktime = interval; |
2264 | } |
2972 | } |
2265 | |
2973 | |
2266 | void |
2974 | void |
2267 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2975 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2268 | { |
2976 | { |
2269 | timeout_blocktime = interval; |
2977 | timeout_blocktime = interval; |
2270 | } |
2978 | } |
2271 | |
2979 | |
2272 | void |
2980 | void |
2273 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2981 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2274 | { |
2982 | { |
2275 | userdata = data; |
2983 | userdata = data; |
2276 | } |
2984 | } |
2277 | |
2985 | |
2278 | void * |
2986 | void * |
2279 | ev_userdata (EV_P) EV_THROW |
2987 | ev_userdata (EV_P) EV_NOEXCEPT |
2280 | { |
2988 | { |
2281 | return userdata; |
2989 | return userdata; |
2282 | } |
2990 | } |
2283 | |
2991 | |
2284 | void |
2992 | void |
2285 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2993 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2286 | { |
2994 | { |
2287 | invoke_cb = invoke_pending_cb; |
2995 | invoke_cb = invoke_pending_cb; |
2288 | } |
2996 | } |
2289 | |
2997 | |
2290 | void |
2998 | void |
2291 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2999 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2292 | { |
3000 | { |
2293 | release_cb = release; |
3001 | release_cb = release; |
2294 | acquire_cb = acquire; |
3002 | acquire_cb = acquire; |
2295 | } |
3003 | } |
2296 | #endif |
3004 | #endif |
2297 | |
3005 | |
2298 | /* initialise a loop structure, must be zero-initialised */ |
3006 | /* initialise a loop structure, must be zero-initialised */ |
2299 | static void noinline ecb_cold |
3007 | ecb_noinline ecb_cold |
|
|
3008 | static void |
2300 | loop_init (EV_P_ unsigned int flags) EV_THROW |
3009 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2301 | { |
3010 | { |
2302 | if (!backend) |
3011 | if (!backend) |
2303 | { |
3012 | { |
2304 | origflags = flags; |
3013 | origflags = flags; |
2305 | |
3014 | |
… | |
… | |
2350 | #if EV_ASYNC_ENABLE |
3059 | #if EV_ASYNC_ENABLE |
2351 | async_pending = 0; |
3060 | async_pending = 0; |
2352 | #endif |
3061 | #endif |
2353 | pipe_write_skipped = 0; |
3062 | pipe_write_skipped = 0; |
2354 | pipe_write_wanted = 0; |
3063 | pipe_write_wanted = 0; |
|
|
3064 | evpipe [0] = -1; |
|
|
3065 | evpipe [1] = -1; |
2355 | #if EV_USE_INOTIFY |
3066 | #if EV_USE_INOTIFY |
2356 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3067 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2357 | #endif |
3068 | #endif |
2358 | #if EV_USE_SIGNALFD |
3069 | #if EV_USE_SIGNALFD |
2359 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3070 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2361 | |
3072 | |
2362 | if (!(flags & EVBACKEND_MASK)) |
3073 | if (!(flags & EVBACKEND_MASK)) |
2363 | flags |= ev_recommended_backends (); |
3074 | flags |= ev_recommended_backends (); |
2364 | |
3075 | |
2365 | #if EV_USE_IOCP |
3076 | #if EV_USE_IOCP |
2366 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3077 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2367 | #endif |
3078 | #endif |
2368 | #if EV_USE_PORT |
3079 | #if EV_USE_PORT |
2369 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3080 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2370 | #endif |
3081 | #endif |
2371 | #if EV_USE_KQUEUE |
3082 | #if EV_USE_KQUEUE |
2372 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3083 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3084 | #endif |
|
|
3085 | #if EV_USE_IOURING |
|
|
3086 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3087 | #endif |
|
|
3088 | #if EV_USE_LINUXAIO |
|
|
3089 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2373 | #endif |
3090 | #endif |
2374 | #if EV_USE_EPOLL |
3091 | #if EV_USE_EPOLL |
2375 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3092 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2376 | #endif |
3093 | #endif |
2377 | #if EV_USE_POLL |
3094 | #if EV_USE_POLL |
2378 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3095 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2379 | #endif |
3096 | #endif |
2380 | #if EV_USE_SELECT |
3097 | #if EV_USE_SELECT |
2381 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3098 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2382 | #endif |
3099 | #endif |
2383 | |
3100 | |
2384 | ev_prepare_init (&pending_w, pendingcb); |
3101 | ev_prepare_init (&pending_w, pendingcb); |
2385 | |
3102 | |
2386 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3103 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2389 | #endif |
3106 | #endif |
2390 | } |
3107 | } |
2391 | } |
3108 | } |
2392 | |
3109 | |
2393 | /* free up a loop structure */ |
3110 | /* free up a loop structure */ |
2394 | void ecb_cold |
3111 | ecb_cold |
|
|
3112 | void |
2395 | ev_loop_destroy (EV_P) |
3113 | ev_loop_destroy (EV_P) |
2396 | { |
3114 | { |
2397 | int i; |
3115 | int i; |
2398 | |
3116 | |
2399 | #if EV_MULTIPLICITY |
3117 | #if EV_MULTIPLICITY |
… | |
… | |
2402 | return; |
3120 | return; |
2403 | #endif |
3121 | #endif |
2404 | |
3122 | |
2405 | #if EV_CLEANUP_ENABLE |
3123 | #if EV_CLEANUP_ENABLE |
2406 | /* queue cleanup watchers (and execute them) */ |
3124 | /* queue cleanup watchers (and execute them) */ |
2407 | if (expect_false (cleanupcnt)) |
3125 | if (ecb_expect_false (cleanupcnt)) |
2408 | { |
3126 | { |
2409 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3127 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2410 | EV_INVOKE_PENDING; |
3128 | EV_INVOKE_PENDING; |
2411 | } |
3129 | } |
2412 | #endif |
3130 | #endif |
… | |
… | |
2422 | if (ev_is_active (&pipe_w)) |
3140 | if (ev_is_active (&pipe_w)) |
2423 | { |
3141 | { |
2424 | /*ev_ref (EV_A);*/ |
3142 | /*ev_ref (EV_A);*/ |
2425 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3143 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2426 | |
3144 | |
2427 | #if EV_USE_EVENTFD |
|
|
2428 | if (evfd >= 0) |
|
|
2429 | close (evfd); |
|
|
2430 | #endif |
|
|
2431 | |
|
|
2432 | if (evpipe [0] >= 0) |
|
|
2433 | { |
|
|
2434 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3145 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2435 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3146 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2436 | } |
|
|
2437 | } |
3147 | } |
2438 | |
3148 | |
2439 | #if EV_USE_SIGNALFD |
3149 | #if EV_USE_SIGNALFD |
2440 | if (ev_is_active (&sigfd_w)) |
3150 | if (ev_is_active (&sigfd_w)) |
2441 | close (sigfd); |
3151 | close (sigfd); |
… | |
… | |
2448 | |
3158 | |
2449 | if (backend_fd >= 0) |
3159 | if (backend_fd >= 0) |
2450 | close (backend_fd); |
3160 | close (backend_fd); |
2451 | |
3161 | |
2452 | #if EV_USE_IOCP |
3162 | #if EV_USE_IOCP |
2453 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3163 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2454 | #endif |
3164 | #endif |
2455 | #if EV_USE_PORT |
3165 | #if EV_USE_PORT |
2456 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3166 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2457 | #endif |
3167 | #endif |
2458 | #if EV_USE_KQUEUE |
3168 | #if EV_USE_KQUEUE |
2459 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3169 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3170 | #endif |
|
|
3171 | #if EV_USE_IOURING |
|
|
3172 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3173 | #endif |
|
|
3174 | #if EV_USE_LINUXAIO |
|
|
3175 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2460 | #endif |
3176 | #endif |
2461 | #if EV_USE_EPOLL |
3177 | #if EV_USE_EPOLL |
2462 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3178 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2463 | #endif |
3179 | #endif |
2464 | #if EV_USE_POLL |
3180 | #if EV_USE_POLL |
2465 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3181 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2466 | #endif |
3182 | #endif |
2467 | #if EV_USE_SELECT |
3183 | #if EV_USE_SELECT |
2468 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3184 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2469 | #endif |
3185 | #endif |
2470 | |
3186 | |
2471 | for (i = NUMPRI; i--; ) |
3187 | for (i = NUMPRI; i--; ) |
2472 | { |
3188 | { |
2473 | array_free (pending, [i]); |
3189 | array_free (pending, [i]); |
… | |
… | |
2515 | |
3231 | |
2516 | inline_size void |
3232 | inline_size void |
2517 | loop_fork (EV_P) |
3233 | loop_fork (EV_P) |
2518 | { |
3234 | { |
2519 | #if EV_USE_PORT |
3235 | #if EV_USE_PORT |
2520 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3236 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2521 | #endif |
3237 | #endif |
2522 | #if EV_USE_KQUEUE |
3238 | #if EV_USE_KQUEUE |
2523 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3239 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3240 | #endif |
|
|
3241 | #if EV_USE_IOURING |
|
|
3242 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3243 | #endif |
|
|
3244 | #if EV_USE_LINUXAIO |
|
|
3245 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2524 | #endif |
3246 | #endif |
2525 | #if EV_USE_EPOLL |
3247 | #if EV_USE_EPOLL |
2526 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3248 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2527 | #endif |
3249 | #endif |
2528 | #if EV_USE_INOTIFY |
3250 | #if EV_USE_INOTIFY |
2529 | infy_fork (EV_A); |
3251 | infy_fork (EV_A); |
2530 | #endif |
3252 | #endif |
2531 | |
3253 | |
|
|
3254 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2532 | if (ev_is_active (&pipe_w)) |
3255 | if (ev_is_active (&pipe_w) && postfork != 2) |
2533 | { |
3256 | { |
2534 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3257 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2535 | |
3258 | |
2536 | ev_ref (EV_A); |
3259 | ev_ref (EV_A); |
2537 | ev_io_stop (EV_A_ &pipe_w); |
3260 | ev_io_stop (EV_A_ &pipe_w); |
2538 | |
3261 | |
2539 | #if EV_USE_EVENTFD |
|
|
2540 | if (evfd >= 0) |
|
|
2541 | close (evfd); |
|
|
2542 | #endif |
|
|
2543 | |
|
|
2544 | if (evpipe [0] >= 0) |
3262 | if (evpipe [0] >= 0) |
2545 | { |
|
|
2546 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3263 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2547 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2548 | } |
|
|
2549 | |
3264 | |
2550 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2551 | evpipe_init (EV_A); |
3265 | evpipe_init (EV_A); |
2552 | /* now iterate over everything, in case we missed something */ |
3266 | /* iterate over everything, in case we missed something before */ |
2553 | pipecb (EV_A_ &pipe_w, EV_READ); |
3267 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2554 | #endif |
|
|
2555 | } |
3268 | } |
|
|
3269 | #endif |
2556 | |
3270 | |
2557 | postfork = 0; |
3271 | postfork = 0; |
2558 | } |
3272 | } |
2559 | |
3273 | |
2560 | #if EV_MULTIPLICITY |
3274 | #if EV_MULTIPLICITY |
2561 | |
3275 | |
|
|
3276 | ecb_cold |
2562 | struct ev_loop * ecb_cold |
3277 | struct ev_loop * |
2563 | ev_loop_new (unsigned int flags) EV_THROW |
3278 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2564 | { |
3279 | { |
2565 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3280 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2566 | |
3281 | |
2567 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3282 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2568 | loop_init (EV_A_ flags); |
3283 | loop_init (EV_A_ flags); |
… | |
… | |
2575 | } |
3290 | } |
2576 | |
3291 | |
2577 | #endif /* multiplicity */ |
3292 | #endif /* multiplicity */ |
2578 | |
3293 | |
2579 | #if EV_VERIFY |
3294 | #if EV_VERIFY |
2580 | static void noinline ecb_cold |
3295 | ecb_noinline ecb_cold |
|
|
3296 | static void |
2581 | verify_watcher (EV_P_ W w) |
3297 | verify_watcher (EV_P_ W w) |
2582 | { |
3298 | { |
2583 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3299 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2584 | |
3300 | |
2585 | if (w->pending) |
3301 | if (w->pending) |
2586 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3302 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2587 | } |
3303 | } |
2588 | |
3304 | |
2589 | static void noinline ecb_cold |
3305 | ecb_noinline ecb_cold |
|
|
3306 | static void |
2590 | verify_heap (EV_P_ ANHE *heap, int N) |
3307 | verify_heap (EV_P_ ANHE *heap, int N) |
2591 | { |
3308 | { |
2592 | int i; |
3309 | int i; |
2593 | |
3310 | |
2594 | for (i = HEAP0; i < N + HEAP0; ++i) |
3311 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2599 | |
3316 | |
2600 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3317 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2601 | } |
3318 | } |
2602 | } |
3319 | } |
2603 | |
3320 | |
2604 | static void noinline ecb_cold |
3321 | ecb_noinline ecb_cold |
|
|
3322 | static void |
2605 | array_verify (EV_P_ W *ws, int cnt) |
3323 | array_verify (EV_P_ W *ws, int cnt) |
2606 | { |
3324 | { |
2607 | while (cnt--) |
3325 | while (cnt--) |
2608 | { |
3326 | { |
2609 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3327 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2612 | } |
3330 | } |
2613 | #endif |
3331 | #endif |
2614 | |
3332 | |
2615 | #if EV_FEATURE_API |
3333 | #if EV_FEATURE_API |
2616 | void ecb_cold |
3334 | void ecb_cold |
2617 | ev_verify (EV_P) EV_THROW |
3335 | ev_verify (EV_P) EV_NOEXCEPT |
2618 | { |
3336 | { |
2619 | #if EV_VERIFY |
3337 | #if EV_VERIFY |
2620 | int i; |
3338 | int i; |
2621 | WL w, w2; |
3339 | WL w, w2; |
2622 | |
3340 | |
… | |
… | |
2698 | #endif |
3416 | #endif |
2699 | } |
3417 | } |
2700 | #endif |
3418 | #endif |
2701 | |
3419 | |
2702 | #if EV_MULTIPLICITY |
3420 | #if EV_MULTIPLICITY |
|
|
3421 | ecb_cold |
2703 | struct ev_loop * ecb_cold |
3422 | struct ev_loop * |
2704 | #else |
3423 | #else |
2705 | int |
3424 | int |
2706 | #endif |
3425 | #endif |
2707 | ev_default_loop (unsigned int flags) EV_THROW |
3426 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2708 | { |
3427 | { |
2709 | if (!ev_default_loop_ptr) |
3428 | if (!ev_default_loop_ptr) |
2710 | { |
3429 | { |
2711 | #if EV_MULTIPLICITY |
3430 | #if EV_MULTIPLICITY |
2712 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3431 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2731 | |
3450 | |
2732 | return ev_default_loop_ptr; |
3451 | return ev_default_loop_ptr; |
2733 | } |
3452 | } |
2734 | |
3453 | |
2735 | void |
3454 | void |
2736 | ev_loop_fork (EV_P) EV_THROW |
3455 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2737 | { |
3456 | { |
2738 | postfork = 1; /* must be in line with ev_default_fork */ |
3457 | postfork = 1; |
2739 | } |
3458 | } |
2740 | |
3459 | |
2741 | /*****************************************************************************/ |
3460 | /*****************************************************************************/ |
2742 | |
3461 | |
2743 | void |
3462 | void |
… | |
… | |
2745 | { |
3464 | { |
2746 | EV_CB_INVOKE ((W)w, revents); |
3465 | EV_CB_INVOKE ((W)w, revents); |
2747 | } |
3466 | } |
2748 | |
3467 | |
2749 | unsigned int |
3468 | unsigned int |
2750 | ev_pending_count (EV_P) EV_THROW |
3469 | ev_pending_count (EV_P) EV_NOEXCEPT |
2751 | { |
3470 | { |
2752 | int pri; |
3471 | int pri; |
2753 | unsigned int count = 0; |
3472 | unsigned int count = 0; |
2754 | |
3473 | |
2755 | for (pri = NUMPRI; pri--; ) |
3474 | for (pri = NUMPRI; pri--; ) |
2756 | count += pendingcnt [pri]; |
3475 | count += pendingcnt [pri]; |
2757 | |
3476 | |
2758 | return count; |
3477 | return count; |
2759 | } |
3478 | } |
2760 | |
3479 | |
2761 | void noinline |
3480 | ecb_noinline |
|
|
3481 | void |
2762 | ev_invoke_pending (EV_P) |
3482 | ev_invoke_pending (EV_P) |
2763 | { |
3483 | { |
2764 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
3484 | pendingpri = NUMPRI; |
|
|
3485 | |
|
|
3486 | do |
|
|
3487 | { |
|
|
3488 | --pendingpri; |
|
|
3489 | |
|
|
3490 | /* pendingpri possibly gets modified in the inner loop */ |
2765 | while (pendingcnt [pendingpri]) |
3491 | while (pendingcnt [pendingpri]) |
2766 | { |
3492 | { |
2767 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3493 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2768 | |
3494 | |
2769 | p->w->pending = 0; |
3495 | p->w->pending = 0; |
2770 | EV_CB_INVOKE (p->w, p->events); |
3496 | EV_CB_INVOKE (p->w, p->events); |
2771 | EV_FREQUENT_CHECK; |
3497 | EV_FREQUENT_CHECK; |
2772 | } |
3498 | } |
|
|
3499 | } |
|
|
3500 | while (pendingpri); |
2773 | } |
3501 | } |
2774 | |
3502 | |
2775 | #if EV_IDLE_ENABLE |
3503 | #if EV_IDLE_ENABLE |
2776 | /* make idle watchers pending. this handles the "call-idle */ |
3504 | /* make idle watchers pending. this handles the "call-idle */ |
2777 | /* only when higher priorities are idle" logic */ |
3505 | /* only when higher priorities are idle" logic */ |
2778 | inline_size void |
3506 | inline_size void |
2779 | idle_reify (EV_P) |
3507 | idle_reify (EV_P) |
2780 | { |
3508 | { |
2781 | if (expect_false (idleall)) |
3509 | if (ecb_expect_false (idleall)) |
2782 | { |
3510 | { |
2783 | int pri; |
3511 | int pri; |
2784 | |
3512 | |
2785 | for (pri = NUMPRI; pri--; ) |
3513 | for (pri = NUMPRI; pri--; ) |
2786 | { |
3514 | { |
… | |
… | |
2835 | } |
3563 | } |
2836 | } |
3564 | } |
2837 | |
3565 | |
2838 | #if EV_PERIODIC_ENABLE |
3566 | #if EV_PERIODIC_ENABLE |
2839 | |
3567 | |
2840 | static void noinline |
3568 | ecb_noinline |
|
|
3569 | static void |
2841 | periodic_recalc (EV_P_ ev_periodic *w) |
3570 | periodic_recalc (EV_P_ ev_periodic *w) |
2842 | { |
3571 | { |
2843 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3572 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2844 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3573 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2845 | |
3574 | |
… | |
… | |
2847 | while (at <= ev_rt_now) |
3576 | while (at <= ev_rt_now) |
2848 | { |
3577 | { |
2849 | ev_tstamp nat = at + w->interval; |
3578 | ev_tstamp nat = at + w->interval; |
2850 | |
3579 | |
2851 | /* when resolution fails us, we use ev_rt_now */ |
3580 | /* when resolution fails us, we use ev_rt_now */ |
2852 | if (expect_false (nat == at)) |
3581 | if (ecb_expect_false (nat == at)) |
2853 | { |
3582 | { |
2854 | at = ev_rt_now; |
3583 | at = ev_rt_now; |
2855 | break; |
3584 | break; |
2856 | } |
3585 | } |
2857 | |
3586 | |
… | |
… | |
2903 | } |
3632 | } |
2904 | } |
3633 | } |
2905 | |
3634 | |
2906 | /* simply recalculate all periodics */ |
3635 | /* simply recalculate all periodics */ |
2907 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3636 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2908 | static void noinline ecb_cold |
3637 | ecb_noinline ecb_cold |
|
|
3638 | static void |
2909 | periodics_reschedule (EV_P) |
3639 | periodics_reschedule (EV_P) |
2910 | { |
3640 | { |
2911 | int i; |
3641 | int i; |
2912 | |
3642 | |
2913 | /* adjust periodics after time jump */ |
3643 | /* adjust periodics after time jump */ |
… | |
… | |
2926 | reheap (periodics, periodiccnt); |
3656 | reheap (periodics, periodiccnt); |
2927 | } |
3657 | } |
2928 | #endif |
3658 | #endif |
2929 | |
3659 | |
2930 | /* adjust all timers by a given offset */ |
3660 | /* adjust all timers by a given offset */ |
2931 | static void noinline ecb_cold |
3661 | ecb_noinline ecb_cold |
|
|
3662 | static void |
2932 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3663 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2933 | { |
3664 | { |
2934 | int i; |
3665 | int i; |
2935 | |
3666 | |
2936 | for (i = 0; i < timercnt; ++i) |
3667 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2945 | /* also detect if there was a timejump, and act accordingly */ |
3676 | /* also detect if there was a timejump, and act accordingly */ |
2946 | inline_speed void |
3677 | inline_speed void |
2947 | time_update (EV_P_ ev_tstamp max_block) |
3678 | time_update (EV_P_ ev_tstamp max_block) |
2948 | { |
3679 | { |
2949 | #if EV_USE_MONOTONIC |
3680 | #if EV_USE_MONOTONIC |
2950 | if (expect_true (have_monotonic)) |
3681 | if (ecb_expect_true (have_monotonic)) |
2951 | { |
3682 | { |
2952 | int i; |
3683 | int i; |
2953 | ev_tstamp odiff = rtmn_diff; |
3684 | ev_tstamp odiff = rtmn_diff; |
2954 | |
3685 | |
2955 | mn_now = get_clock (); |
3686 | mn_now = get_clock (); |
2956 | |
3687 | |
2957 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3688 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2958 | /* interpolate in the meantime */ |
3689 | /* interpolate in the meantime */ |
2959 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3690 | if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2960 | { |
3691 | { |
2961 | ev_rt_now = rtmn_diff + mn_now; |
3692 | ev_rt_now = rtmn_diff + mn_now; |
2962 | return; |
3693 | return; |
2963 | } |
3694 | } |
2964 | |
3695 | |
… | |
… | |
2978 | ev_tstamp diff; |
3709 | ev_tstamp diff; |
2979 | rtmn_diff = ev_rt_now - mn_now; |
3710 | rtmn_diff = ev_rt_now - mn_now; |
2980 | |
3711 | |
2981 | diff = odiff - rtmn_diff; |
3712 | diff = odiff - rtmn_diff; |
2982 | |
3713 | |
2983 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3714 | if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2984 | return; /* all is well */ |
3715 | return; /* all is well */ |
2985 | |
3716 | |
2986 | ev_rt_now = ev_time (); |
3717 | ev_rt_now = ev_time (); |
2987 | mn_now = get_clock (); |
3718 | mn_now = get_clock (); |
2988 | now_floor = mn_now; |
3719 | now_floor = mn_now; |
… | |
… | |
2997 | else |
3728 | else |
2998 | #endif |
3729 | #endif |
2999 | { |
3730 | { |
3000 | ev_rt_now = ev_time (); |
3731 | ev_rt_now = ev_time (); |
3001 | |
3732 | |
3002 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3733 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3003 | { |
3734 | { |
3004 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3735 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3005 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3736 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3006 | #if EV_PERIODIC_ENABLE |
3737 | #if EV_PERIODIC_ENABLE |
3007 | periodics_reschedule (EV_A); |
3738 | periodics_reschedule (EV_A); |
… | |
… | |
3030 | #if EV_VERIFY >= 2 |
3761 | #if EV_VERIFY >= 2 |
3031 | ev_verify (EV_A); |
3762 | ev_verify (EV_A); |
3032 | #endif |
3763 | #endif |
3033 | |
3764 | |
3034 | #ifndef _WIN32 |
3765 | #ifndef _WIN32 |
3035 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3766 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3036 | if (expect_false (getpid () != curpid)) |
3767 | if (ecb_expect_false (getpid () != curpid)) |
3037 | { |
3768 | { |
3038 | curpid = getpid (); |
3769 | curpid = getpid (); |
3039 | postfork = 1; |
3770 | postfork = 1; |
3040 | } |
3771 | } |
3041 | #endif |
3772 | #endif |
3042 | |
3773 | |
3043 | #if EV_FORK_ENABLE |
3774 | #if EV_FORK_ENABLE |
3044 | /* we might have forked, so queue fork handlers */ |
3775 | /* we might have forked, so queue fork handlers */ |
3045 | if (expect_false (postfork)) |
3776 | if (ecb_expect_false (postfork)) |
3046 | if (forkcnt) |
3777 | if (forkcnt) |
3047 | { |
3778 | { |
3048 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3779 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3049 | EV_INVOKE_PENDING; |
3780 | EV_INVOKE_PENDING; |
3050 | } |
3781 | } |
3051 | #endif |
3782 | #endif |
3052 | |
3783 | |
3053 | #if EV_PREPARE_ENABLE |
3784 | #if EV_PREPARE_ENABLE |
3054 | /* queue prepare watchers (and execute them) */ |
3785 | /* queue prepare watchers (and execute them) */ |
3055 | if (expect_false (preparecnt)) |
3786 | if (ecb_expect_false (preparecnt)) |
3056 | { |
3787 | { |
3057 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3788 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3058 | EV_INVOKE_PENDING; |
3789 | EV_INVOKE_PENDING; |
3059 | } |
3790 | } |
3060 | #endif |
3791 | #endif |
3061 | |
3792 | |
3062 | if (expect_false (loop_done)) |
3793 | if (ecb_expect_false (loop_done)) |
3063 | break; |
3794 | break; |
3064 | |
3795 | |
3065 | /* we might have forked, so reify kernel state if necessary */ |
3796 | /* we might have forked, so reify kernel state if necessary */ |
3066 | if (expect_false (postfork)) |
3797 | if (ecb_expect_false (postfork)) |
3067 | loop_fork (EV_A); |
3798 | loop_fork (EV_A); |
3068 | |
3799 | |
3069 | /* update fd-related kernel structures */ |
3800 | /* update fd-related kernel structures */ |
3070 | fd_reify (EV_A); |
3801 | fd_reify (EV_A); |
3071 | |
3802 | |
… | |
… | |
3083 | /* from now on, we want a pipe-wake-up */ |
3814 | /* from now on, we want a pipe-wake-up */ |
3084 | pipe_write_wanted = 1; |
3815 | pipe_write_wanted = 1; |
3085 | |
3816 | |
3086 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3817 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3087 | |
3818 | |
3088 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3819 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3089 | { |
3820 | { |
3090 | waittime = MAX_BLOCKTIME; |
3821 | waittime = MAX_BLOCKTIME; |
3091 | |
3822 | |
3092 | if (timercnt) |
3823 | if (timercnt) |
3093 | { |
3824 | { |
… | |
… | |
3102 | if (waittime > to) waittime = to; |
3833 | if (waittime > to) waittime = to; |
3103 | } |
3834 | } |
3104 | #endif |
3835 | #endif |
3105 | |
3836 | |
3106 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3837 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3107 | if (expect_false (waittime < timeout_blocktime)) |
3838 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3108 | waittime = timeout_blocktime; |
3839 | waittime = timeout_blocktime; |
3109 | |
3840 | |
3110 | /* at this point, we NEED to wait, so we have to ensure */ |
3841 | /* at this point, we NEED to wait, so we have to ensure */ |
3111 | /* to pass a minimum nonzero value to the backend */ |
3842 | /* to pass a minimum nonzero value to the backend */ |
3112 | if (expect_false (waittime < backend_mintime)) |
3843 | if (ecb_expect_false (waittime < backend_mintime)) |
3113 | waittime = backend_mintime; |
3844 | waittime = backend_mintime; |
3114 | |
3845 | |
3115 | /* extra check because io_blocktime is commonly 0 */ |
3846 | /* extra check because io_blocktime is commonly 0 */ |
3116 | if (expect_false (io_blocktime)) |
3847 | if (ecb_expect_false (io_blocktime)) |
3117 | { |
3848 | { |
3118 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3849 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3119 | |
3850 | |
3120 | if (sleeptime > waittime - backend_mintime) |
3851 | if (sleeptime > waittime - backend_mintime) |
3121 | sleeptime = waittime - backend_mintime; |
3852 | sleeptime = waittime - backend_mintime; |
3122 | |
3853 | |
3123 | if (expect_true (sleeptime > 0.)) |
3854 | if (ecb_expect_true (sleeptime > 0.)) |
3124 | { |
3855 | { |
3125 | ev_sleep (sleeptime); |
3856 | ev_sleep (sleeptime); |
3126 | waittime -= sleeptime; |
3857 | waittime -= sleeptime; |
3127 | } |
3858 | } |
3128 | } |
3859 | } |
… | |
… | |
3135 | backend_poll (EV_A_ waittime); |
3866 | backend_poll (EV_A_ waittime); |
3136 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3867 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3137 | |
3868 | |
3138 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3869 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3139 | |
3870 | |
|
|
3871 | ECB_MEMORY_FENCE_ACQUIRE; |
3140 | if (pipe_write_skipped) |
3872 | if (pipe_write_skipped) |
3141 | { |
3873 | { |
3142 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3874 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3143 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3875 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3144 | } |
3876 | } |
3145 | |
3877 | |
3146 | |
|
|
3147 | /* update ev_rt_now, do magic */ |
3878 | /* update ev_rt_now, do magic */ |
3148 | time_update (EV_A_ waittime + sleeptime); |
3879 | time_update (EV_A_ waittime + sleeptime); |
3149 | } |
3880 | } |
3150 | |
3881 | |
3151 | /* queue pending timers and reschedule them */ |
3882 | /* queue pending timers and reschedule them */ |
… | |
… | |
3159 | idle_reify (EV_A); |
3890 | idle_reify (EV_A); |
3160 | #endif |
3891 | #endif |
3161 | |
3892 | |
3162 | #if EV_CHECK_ENABLE |
3893 | #if EV_CHECK_ENABLE |
3163 | /* queue check watchers, to be executed first */ |
3894 | /* queue check watchers, to be executed first */ |
3164 | if (expect_false (checkcnt)) |
3895 | if (ecb_expect_false (checkcnt)) |
3165 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3896 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3166 | #endif |
3897 | #endif |
3167 | |
3898 | |
3168 | EV_INVOKE_PENDING; |
3899 | EV_INVOKE_PENDING; |
3169 | } |
3900 | } |
3170 | while (expect_true ( |
3901 | while (ecb_expect_true ( |
3171 | activecnt |
3902 | activecnt |
3172 | && !loop_done |
3903 | && !loop_done |
3173 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3904 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3174 | )); |
3905 | )); |
3175 | |
3906 | |
… | |
… | |
3182 | |
3913 | |
3183 | return activecnt; |
3914 | return activecnt; |
3184 | } |
3915 | } |
3185 | |
3916 | |
3186 | void |
3917 | void |
3187 | ev_break (EV_P_ int how) EV_THROW |
3918 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3188 | { |
3919 | { |
3189 | loop_done = how; |
3920 | loop_done = how; |
3190 | } |
3921 | } |
3191 | |
3922 | |
3192 | void |
3923 | void |
3193 | ev_ref (EV_P) EV_THROW |
3924 | ev_ref (EV_P) EV_NOEXCEPT |
3194 | { |
3925 | { |
3195 | ++activecnt; |
3926 | ++activecnt; |
3196 | } |
3927 | } |
3197 | |
3928 | |
3198 | void |
3929 | void |
3199 | ev_unref (EV_P) EV_THROW |
3930 | ev_unref (EV_P) EV_NOEXCEPT |
3200 | { |
3931 | { |
3201 | --activecnt; |
3932 | --activecnt; |
3202 | } |
3933 | } |
3203 | |
3934 | |
3204 | void |
3935 | void |
3205 | ev_now_update (EV_P) EV_THROW |
3936 | ev_now_update (EV_P) EV_NOEXCEPT |
3206 | { |
3937 | { |
3207 | time_update (EV_A_ 1e100); |
3938 | time_update (EV_A_ 1e100); |
3208 | } |
3939 | } |
3209 | |
3940 | |
3210 | void |
3941 | void |
3211 | ev_suspend (EV_P) EV_THROW |
3942 | ev_suspend (EV_P) EV_NOEXCEPT |
3212 | { |
3943 | { |
3213 | ev_now_update (EV_A); |
3944 | ev_now_update (EV_A); |
3214 | } |
3945 | } |
3215 | |
3946 | |
3216 | void |
3947 | void |
3217 | ev_resume (EV_P) EV_THROW |
3948 | ev_resume (EV_P) EV_NOEXCEPT |
3218 | { |
3949 | { |
3219 | ev_tstamp mn_prev = mn_now; |
3950 | ev_tstamp mn_prev = mn_now; |
3220 | |
3951 | |
3221 | ev_now_update (EV_A); |
3952 | ev_now_update (EV_A); |
3222 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3953 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3239 | inline_size void |
3970 | inline_size void |
3240 | wlist_del (WL *head, WL elem) |
3971 | wlist_del (WL *head, WL elem) |
3241 | { |
3972 | { |
3242 | while (*head) |
3973 | while (*head) |
3243 | { |
3974 | { |
3244 | if (expect_true (*head == elem)) |
3975 | if (ecb_expect_true (*head == elem)) |
3245 | { |
3976 | { |
3246 | *head = elem->next; |
3977 | *head = elem->next; |
3247 | break; |
3978 | break; |
3248 | } |
3979 | } |
3249 | |
3980 | |
… | |
… | |
3261 | w->pending = 0; |
3992 | w->pending = 0; |
3262 | } |
3993 | } |
3263 | } |
3994 | } |
3264 | |
3995 | |
3265 | int |
3996 | int |
3266 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3997 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3267 | { |
3998 | { |
3268 | W w_ = (W)w; |
3999 | W w_ = (W)w; |
3269 | int pending = w_->pending; |
4000 | int pending = w_->pending; |
3270 | |
4001 | |
3271 | if (expect_true (pending)) |
4002 | if (ecb_expect_true (pending)) |
3272 | { |
4003 | { |
3273 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4004 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3274 | p->w = (W)&pending_w; |
4005 | p->w = (W)&pending_w; |
3275 | w_->pending = 0; |
4006 | w_->pending = 0; |
3276 | return p->events; |
4007 | return p->events; |
… | |
… | |
3303 | w->active = 0; |
4034 | w->active = 0; |
3304 | } |
4035 | } |
3305 | |
4036 | |
3306 | /*****************************************************************************/ |
4037 | /*****************************************************************************/ |
3307 | |
4038 | |
3308 | void noinline |
4039 | ecb_noinline |
|
|
4040 | void |
3309 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
4041 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3310 | { |
4042 | { |
3311 | int fd = w->fd; |
4043 | int fd = w->fd; |
3312 | |
4044 | |
3313 | if (expect_false (ev_is_active (w))) |
4045 | if (ecb_expect_false (ev_is_active (w))) |
3314 | return; |
4046 | return; |
3315 | |
4047 | |
3316 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4048 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3317 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4049 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3318 | |
4050 | |
|
|
4051 | #if EV_VERIFY >= 2 |
|
|
4052 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4053 | #endif |
3319 | EV_FREQUENT_CHECK; |
4054 | EV_FREQUENT_CHECK; |
3320 | |
4055 | |
3321 | ev_start (EV_A_ (W)w, 1); |
4056 | ev_start (EV_A_ (W)w, 1); |
3322 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4057 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3323 | wlist_add (&anfds[fd].head, (WL)w); |
4058 | wlist_add (&anfds[fd].head, (WL)w); |
3324 | |
4059 | |
3325 | /* common bug, apparently */ |
4060 | /* common bug, apparently */ |
3326 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
4061 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3327 | |
4062 | |
… | |
… | |
3329 | w->events &= ~EV__IOFDSET; |
4064 | w->events &= ~EV__IOFDSET; |
3330 | |
4065 | |
3331 | EV_FREQUENT_CHECK; |
4066 | EV_FREQUENT_CHECK; |
3332 | } |
4067 | } |
3333 | |
4068 | |
3334 | void noinline |
4069 | ecb_noinline |
|
|
4070 | void |
3335 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
4071 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3336 | { |
4072 | { |
3337 | clear_pending (EV_A_ (W)w); |
4073 | clear_pending (EV_A_ (W)w); |
3338 | if (expect_false (!ev_is_active (w))) |
4074 | if (ecb_expect_false (!ev_is_active (w))) |
3339 | return; |
4075 | return; |
3340 | |
4076 | |
3341 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4077 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3342 | |
4078 | |
|
|
4079 | #if EV_VERIFY >= 2 |
|
|
4080 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4081 | #endif |
3343 | EV_FREQUENT_CHECK; |
4082 | EV_FREQUENT_CHECK; |
3344 | |
4083 | |
3345 | wlist_del (&anfds[w->fd].head, (WL)w); |
4084 | wlist_del (&anfds[w->fd].head, (WL)w); |
3346 | ev_stop (EV_A_ (W)w); |
4085 | ev_stop (EV_A_ (W)w); |
3347 | |
4086 | |
3348 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4087 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3349 | |
4088 | |
3350 | EV_FREQUENT_CHECK; |
4089 | EV_FREQUENT_CHECK; |
3351 | } |
4090 | } |
3352 | |
4091 | |
3353 | void noinline |
4092 | ecb_noinline |
|
|
4093 | void |
3354 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
4094 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3355 | { |
4095 | { |
3356 | if (expect_false (ev_is_active (w))) |
4096 | if (ecb_expect_false (ev_is_active (w))) |
3357 | return; |
4097 | return; |
3358 | |
4098 | |
3359 | ev_at (w) += mn_now; |
4099 | ev_at (w) += mn_now; |
3360 | |
4100 | |
3361 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4101 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3362 | |
4102 | |
3363 | EV_FREQUENT_CHECK; |
4103 | EV_FREQUENT_CHECK; |
3364 | |
4104 | |
3365 | ++timercnt; |
4105 | ++timercnt; |
3366 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4106 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3367 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4107 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3368 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4108 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3369 | ANHE_at_cache (timers [ev_active (w)]); |
4109 | ANHE_at_cache (timers [ev_active (w)]); |
3370 | upheap (timers, ev_active (w)); |
4110 | upheap (timers, ev_active (w)); |
3371 | |
4111 | |
3372 | EV_FREQUENT_CHECK; |
4112 | EV_FREQUENT_CHECK; |
3373 | |
4113 | |
3374 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4114 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3375 | } |
4115 | } |
3376 | |
4116 | |
3377 | void noinline |
4117 | ecb_noinline |
|
|
4118 | void |
3378 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
4119 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3379 | { |
4120 | { |
3380 | clear_pending (EV_A_ (W)w); |
4121 | clear_pending (EV_A_ (W)w); |
3381 | if (expect_false (!ev_is_active (w))) |
4122 | if (ecb_expect_false (!ev_is_active (w))) |
3382 | return; |
4123 | return; |
3383 | |
4124 | |
3384 | EV_FREQUENT_CHECK; |
4125 | EV_FREQUENT_CHECK; |
3385 | |
4126 | |
3386 | { |
4127 | { |
… | |
… | |
3388 | |
4129 | |
3389 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4130 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3390 | |
4131 | |
3391 | --timercnt; |
4132 | --timercnt; |
3392 | |
4133 | |
3393 | if (expect_true (active < timercnt + HEAP0)) |
4134 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3394 | { |
4135 | { |
3395 | timers [active] = timers [timercnt + HEAP0]; |
4136 | timers [active] = timers [timercnt + HEAP0]; |
3396 | adjustheap (timers, timercnt, active); |
4137 | adjustheap (timers, timercnt, active); |
3397 | } |
4138 | } |
3398 | } |
4139 | } |
… | |
… | |
3402 | ev_stop (EV_A_ (W)w); |
4143 | ev_stop (EV_A_ (W)w); |
3403 | |
4144 | |
3404 | EV_FREQUENT_CHECK; |
4145 | EV_FREQUENT_CHECK; |
3405 | } |
4146 | } |
3406 | |
4147 | |
3407 | void noinline |
4148 | ecb_noinline |
|
|
4149 | void |
3408 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4150 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3409 | { |
4151 | { |
3410 | EV_FREQUENT_CHECK; |
4152 | EV_FREQUENT_CHECK; |
3411 | |
4153 | |
3412 | clear_pending (EV_A_ (W)w); |
4154 | clear_pending (EV_A_ (W)w); |
3413 | |
4155 | |
… | |
… | |
3430 | |
4172 | |
3431 | EV_FREQUENT_CHECK; |
4173 | EV_FREQUENT_CHECK; |
3432 | } |
4174 | } |
3433 | |
4175 | |
3434 | ev_tstamp |
4176 | ev_tstamp |
3435 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4177 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3436 | { |
4178 | { |
3437 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4179 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3438 | } |
4180 | } |
3439 | |
4181 | |
3440 | #if EV_PERIODIC_ENABLE |
4182 | #if EV_PERIODIC_ENABLE |
3441 | void noinline |
4183 | ecb_noinline |
|
|
4184 | void |
3442 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4185 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3443 | { |
4186 | { |
3444 | if (expect_false (ev_is_active (w))) |
4187 | if (ecb_expect_false (ev_is_active (w))) |
3445 | return; |
4188 | return; |
3446 | |
4189 | |
3447 | if (w->reschedule_cb) |
4190 | if (w->reschedule_cb) |
3448 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4191 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3449 | else if (w->interval) |
4192 | else if (w->interval) |
… | |
… | |
3456 | |
4199 | |
3457 | EV_FREQUENT_CHECK; |
4200 | EV_FREQUENT_CHECK; |
3458 | |
4201 | |
3459 | ++periodiccnt; |
4202 | ++periodiccnt; |
3460 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4203 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3461 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4204 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3462 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4205 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3463 | ANHE_at_cache (periodics [ev_active (w)]); |
4206 | ANHE_at_cache (periodics [ev_active (w)]); |
3464 | upheap (periodics, ev_active (w)); |
4207 | upheap (periodics, ev_active (w)); |
3465 | |
4208 | |
3466 | EV_FREQUENT_CHECK; |
4209 | EV_FREQUENT_CHECK; |
3467 | |
4210 | |
3468 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4211 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3469 | } |
4212 | } |
3470 | |
4213 | |
3471 | void noinline |
4214 | ecb_noinline |
|
|
4215 | void |
3472 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4216 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3473 | { |
4217 | { |
3474 | clear_pending (EV_A_ (W)w); |
4218 | clear_pending (EV_A_ (W)w); |
3475 | if (expect_false (!ev_is_active (w))) |
4219 | if (ecb_expect_false (!ev_is_active (w))) |
3476 | return; |
4220 | return; |
3477 | |
4221 | |
3478 | EV_FREQUENT_CHECK; |
4222 | EV_FREQUENT_CHECK; |
3479 | |
4223 | |
3480 | { |
4224 | { |
… | |
… | |
3482 | |
4226 | |
3483 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4227 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3484 | |
4228 | |
3485 | --periodiccnt; |
4229 | --periodiccnt; |
3486 | |
4230 | |
3487 | if (expect_true (active < periodiccnt + HEAP0)) |
4231 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3488 | { |
4232 | { |
3489 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4233 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3490 | adjustheap (periodics, periodiccnt, active); |
4234 | adjustheap (periodics, periodiccnt, active); |
3491 | } |
4235 | } |
3492 | } |
4236 | } |
… | |
… | |
3494 | ev_stop (EV_A_ (W)w); |
4238 | ev_stop (EV_A_ (W)w); |
3495 | |
4239 | |
3496 | EV_FREQUENT_CHECK; |
4240 | EV_FREQUENT_CHECK; |
3497 | } |
4241 | } |
3498 | |
4242 | |
3499 | void noinline |
4243 | ecb_noinline |
|
|
4244 | void |
3500 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4245 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3501 | { |
4246 | { |
3502 | /* TODO: use adjustheap and recalculation */ |
4247 | /* TODO: use adjustheap and recalculation */ |
3503 | ev_periodic_stop (EV_A_ w); |
4248 | ev_periodic_stop (EV_A_ w); |
3504 | ev_periodic_start (EV_A_ w); |
4249 | ev_periodic_start (EV_A_ w); |
3505 | } |
4250 | } |
… | |
… | |
3509 | # define SA_RESTART 0 |
4254 | # define SA_RESTART 0 |
3510 | #endif |
4255 | #endif |
3511 | |
4256 | |
3512 | #if EV_SIGNAL_ENABLE |
4257 | #if EV_SIGNAL_ENABLE |
3513 | |
4258 | |
3514 | void noinline |
4259 | ecb_noinline |
|
|
4260 | void |
3515 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4261 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3516 | { |
4262 | { |
3517 | if (expect_false (ev_is_active (w))) |
4263 | if (ecb_expect_false (ev_is_active (w))) |
3518 | return; |
4264 | return; |
3519 | |
4265 | |
3520 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4266 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3521 | |
4267 | |
3522 | #if EV_MULTIPLICITY |
4268 | #if EV_MULTIPLICITY |
3523 | assert (("libev: a signal must not be attached to two different loops", |
4269 | assert (("libev: a signal must not be attached to two different loops", |
3524 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4270 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3525 | |
4271 | |
3526 | signals [w->signum - 1].loop = EV_A; |
4272 | signals [w->signum - 1].loop = EV_A; |
|
|
4273 | ECB_MEMORY_FENCE_RELEASE; |
3527 | #endif |
4274 | #endif |
3528 | |
4275 | |
3529 | EV_FREQUENT_CHECK; |
4276 | EV_FREQUENT_CHECK; |
3530 | |
4277 | |
3531 | #if EV_USE_SIGNALFD |
4278 | #if EV_USE_SIGNALFD |
… | |
… | |
3590 | } |
4337 | } |
3591 | |
4338 | |
3592 | EV_FREQUENT_CHECK; |
4339 | EV_FREQUENT_CHECK; |
3593 | } |
4340 | } |
3594 | |
4341 | |
3595 | void noinline |
4342 | ecb_noinline |
|
|
4343 | void |
3596 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4344 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3597 | { |
4345 | { |
3598 | clear_pending (EV_A_ (W)w); |
4346 | clear_pending (EV_A_ (W)w); |
3599 | if (expect_false (!ev_is_active (w))) |
4347 | if (ecb_expect_false (!ev_is_active (w))) |
3600 | return; |
4348 | return; |
3601 | |
4349 | |
3602 | EV_FREQUENT_CHECK; |
4350 | EV_FREQUENT_CHECK; |
3603 | |
4351 | |
3604 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4352 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3632 | #endif |
4380 | #endif |
3633 | |
4381 | |
3634 | #if EV_CHILD_ENABLE |
4382 | #if EV_CHILD_ENABLE |
3635 | |
4383 | |
3636 | void |
4384 | void |
3637 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4385 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3638 | { |
4386 | { |
3639 | #if EV_MULTIPLICITY |
4387 | #if EV_MULTIPLICITY |
3640 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4388 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3641 | #endif |
4389 | #endif |
3642 | if (expect_false (ev_is_active (w))) |
4390 | if (ecb_expect_false (ev_is_active (w))) |
3643 | return; |
4391 | return; |
3644 | |
4392 | |
3645 | EV_FREQUENT_CHECK; |
4393 | EV_FREQUENT_CHECK; |
3646 | |
4394 | |
3647 | ev_start (EV_A_ (W)w, 1); |
4395 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3649 | |
4397 | |
3650 | EV_FREQUENT_CHECK; |
4398 | EV_FREQUENT_CHECK; |
3651 | } |
4399 | } |
3652 | |
4400 | |
3653 | void |
4401 | void |
3654 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4402 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3655 | { |
4403 | { |
3656 | clear_pending (EV_A_ (W)w); |
4404 | clear_pending (EV_A_ (W)w); |
3657 | if (expect_false (!ev_is_active (w))) |
4405 | if (ecb_expect_false (!ev_is_active (w))) |
3658 | return; |
4406 | return; |
3659 | |
4407 | |
3660 | EV_FREQUENT_CHECK; |
4408 | EV_FREQUENT_CHECK; |
3661 | |
4409 | |
3662 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4410 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3676 | |
4424 | |
3677 | #define DEF_STAT_INTERVAL 5.0074891 |
4425 | #define DEF_STAT_INTERVAL 5.0074891 |
3678 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4426 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3679 | #define MIN_STAT_INTERVAL 0.1074891 |
4427 | #define MIN_STAT_INTERVAL 0.1074891 |
3680 | |
4428 | |
3681 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4429 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3682 | |
4430 | |
3683 | #if EV_USE_INOTIFY |
4431 | #if EV_USE_INOTIFY |
3684 | |
4432 | |
3685 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4433 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3686 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4434 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3687 | |
4435 | |
3688 | static void noinline |
4436 | ecb_noinline |
|
|
4437 | static void |
3689 | infy_add (EV_P_ ev_stat *w) |
4438 | infy_add (EV_P_ ev_stat *w) |
3690 | { |
4439 | { |
3691 | 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); |
4440 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4441 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4442 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4443 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3692 | |
4444 | |
3693 | if (w->wd >= 0) |
4445 | if (w->wd >= 0) |
3694 | { |
4446 | { |
3695 | struct statfs sfs; |
4447 | struct statfs sfs; |
3696 | |
4448 | |
… | |
… | |
3700 | |
4452 | |
3701 | if (!fs_2625) |
4453 | if (!fs_2625) |
3702 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4454 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3703 | else if (!statfs (w->path, &sfs) |
4455 | else if (!statfs (w->path, &sfs) |
3704 | && (sfs.f_type == 0x1373 /* devfs */ |
4456 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4457 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4458 | || sfs.f_type == 0x4d44 /* msdos */ |
3705 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4459 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4460 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4461 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4462 | || sfs.f_type == 0x5346544e /* ntfs */ |
3706 | || sfs.f_type == 0x3153464a /* jfs */ |
4463 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4464 | || sfs.f_type == 0x9123683e /* btrfs */ |
3707 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4465 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3708 | || sfs.f_type == 0x01021994 /* tempfs */ |
4466 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3709 | || sfs.f_type == 0x58465342 /* xfs */)) |
4467 | || sfs.f_type == 0x58465342 /* xfs */)) |
3710 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4468 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3711 | else |
4469 | else |
3712 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4470 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3713 | } |
4471 | } |
… | |
… | |
3748 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4506 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3749 | ev_timer_again (EV_A_ &w->timer); |
4507 | ev_timer_again (EV_A_ &w->timer); |
3750 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4508 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3751 | } |
4509 | } |
3752 | |
4510 | |
3753 | static void noinline |
4511 | ecb_noinline |
|
|
4512 | static void |
3754 | infy_del (EV_P_ ev_stat *w) |
4513 | infy_del (EV_P_ ev_stat *w) |
3755 | { |
4514 | { |
3756 | int slot; |
4515 | int slot; |
3757 | int wd = w->wd; |
4516 | int wd = w->wd; |
3758 | |
4517 | |
… | |
… | |
3765 | |
4524 | |
3766 | /* remove this watcher, if others are watching it, they will rearm */ |
4525 | /* remove this watcher, if others are watching it, they will rearm */ |
3767 | inotify_rm_watch (fs_fd, wd); |
4526 | inotify_rm_watch (fs_fd, wd); |
3768 | } |
4527 | } |
3769 | |
4528 | |
3770 | static void noinline |
4529 | ecb_noinline |
|
|
4530 | static void |
3771 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4531 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3772 | { |
4532 | { |
3773 | if (slot < 0) |
4533 | if (slot < 0) |
3774 | /* overflow, need to check for all hash slots */ |
4534 | /* overflow, need to check for all hash slots */ |
3775 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4535 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3811 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4571 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3812 | ofs += sizeof (struct inotify_event) + ev->len; |
4572 | ofs += sizeof (struct inotify_event) + ev->len; |
3813 | } |
4573 | } |
3814 | } |
4574 | } |
3815 | |
4575 | |
3816 | inline_size void ecb_cold |
4576 | inline_size ecb_cold |
|
|
4577 | void |
3817 | ev_check_2625 (EV_P) |
4578 | ev_check_2625 (EV_P) |
3818 | { |
4579 | { |
3819 | /* kernels < 2.6.25 are borked |
4580 | /* kernels < 2.6.25 are borked |
3820 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4581 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3821 | */ |
4582 | */ |
… | |
… | |
3911 | #else |
4672 | #else |
3912 | # define EV_LSTAT(p,b) lstat (p, b) |
4673 | # define EV_LSTAT(p,b) lstat (p, b) |
3913 | #endif |
4674 | #endif |
3914 | |
4675 | |
3915 | void |
4676 | void |
3916 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4677 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3917 | { |
4678 | { |
3918 | if (lstat (w->path, &w->attr) < 0) |
4679 | if (lstat (w->path, &w->attr) < 0) |
3919 | w->attr.st_nlink = 0; |
4680 | w->attr.st_nlink = 0; |
3920 | else if (!w->attr.st_nlink) |
4681 | else if (!w->attr.st_nlink) |
3921 | w->attr.st_nlink = 1; |
4682 | w->attr.st_nlink = 1; |
3922 | } |
4683 | } |
3923 | |
4684 | |
3924 | static void noinline |
4685 | ecb_noinline |
|
|
4686 | static void |
3925 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4687 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3926 | { |
4688 | { |
3927 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4689 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3928 | |
4690 | |
3929 | ev_statdata prev = w->attr; |
4691 | ev_statdata prev = w->attr; |
… | |
… | |
3960 | ev_feed_event (EV_A_ w, EV_STAT); |
4722 | ev_feed_event (EV_A_ w, EV_STAT); |
3961 | } |
4723 | } |
3962 | } |
4724 | } |
3963 | |
4725 | |
3964 | void |
4726 | void |
3965 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4727 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3966 | { |
4728 | { |
3967 | if (expect_false (ev_is_active (w))) |
4729 | if (ecb_expect_false (ev_is_active (w))) |
3968 | return; |
4730 | return; |
3969 | |
4731 | |
3970 | ev_stat_stat (EV_A_ w); |
4732 | ev_stat_stat (EV_A_ w); |
3971 | |
4733 | |
3972 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4734 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3991 | |
4753 | |
3992 | EV_FREQUENT_CHECK; |
4754 | EV_FREQUENT_CHECK; |
3993 | } |
4755 | } |
3994 | |
4756 | |
3995 | void |
4757 | void |
3996 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4758 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3997 | { |
4759 | { |
3998 | clear_pending (EV_A_ (W)w); |
4760 | clear_pending (EV_A_ (W)w); |
3999 | if (expect_false (!ev_is_active (w))) |
4761 | if (ecb_expect_false (!ev_is_active (w))) |
4000 | return; |
4762 | return; |
4001 | |
4763 | |
4002 | EV_FREQUENT_CHECK; |
4764 | EV_FREQUENT_CHECK; |
4003 | |
4765 | |
4004 | #if EV_USE_INOTIFY |
4766 | #if EV_USE_INOTIFY |
… | |
… | |
4017 | } |
4779 | } |
4018 | #endif |
4780 | #endif |
4019 | |
4781 | |
4020 | #if EV_IDLE_ENABLE |
4782 | #if EV_IDLE_ENABLE |
4021 | void |
4783 | void |
4022 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4784 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4023 | { |
4785 | { |
4024 | if (expect_false (ev_is_active (w))) |
4786 | if (ecb_expect_false (ev_is_active (w))) |
4025 | return; |
4787 | return; |
4026 | |
4788 | |
4027 | pri_adjust (EV_A_ (W)w); |
4789 | pri_adjust (EV_A_ (W)w); |
4028 | |
4790 | |
4029 | EV_FREQUENT_CHECK; |
4791 | EV_FREQUENT_CHECK; |
… | |
… | |
4032 | int active = ++idlecnt [ABSPRI (w)]; |
4794 | int active = ++idlecnt [ABSPRI (w)]; |
4033 | |
4795 | |
4034 | ++idleall; |
4796 | ++idleall; |
4035 | ev_start (EV_A_ (W)w, active); |
4797 | ev_start (EV_A_ (W)w, active); |
4036 | |
4798 | |
4037 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4799 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4038 | idles [ABSPRI (w)][active - 1] = w; |
4800 | idles [ABSPRI (w)][active - 1] = w; |
4039 | } |
4801 | } |
4040 | |
4802 | |
4041 | EV_FREQUENT_CHECK; |
4803 | EV_FREQUENT_CHECK; |
4042 | } |
4804 | } |
4043 | |
4805 | |
4044 | void |
4806 | void |
4045 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4807 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4046 | { |
4808 | { |
4047 | clear_pending (EV_A_ (W)w); |
4809 | clear_pending (EV_A_ (W)w); |
4048 | if (expect_false (!ev_is_active (w))) |
4810 | if (ecb_expect_false (!ev_is_active (w))) |
4049 | return; |
4811 | return; |
4050 | |
4812 | |
4051 | EV_FREQUENT_CHECK; |
4813 | EV_FREQUENT_CHECK; |
4052 | |
4814 | |
4053 | { |
4815 | { |
… | |
… | |
4064 | } |
4826 | } |
4065 | #endif |
4827 | #endif |
4066 | |
4828 | |
4067 | #if EV_PREPARE_ENABLE |
4829 | #if EV_PREPARE_ENABLE |
4068 | void |
4830 | void |
4069 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4831 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4070 | { |
4832 | { |
4071 | if (expect_false (ev_is_active (w))) |
4833 | if (ecb_expect_false (ev_is_active (w))) |
4072 | return; |
4834 | return; |
4073 | |
4835 | |
4074 | EV_FREQUENT_CHECK; |
4836 | EV_FREQUENT_CHECK; |
4075 | |
4837 | |
4076 | ev_start (EV_A_ (W)w, ++preparecnt); |
4838 | ev_start (EV_A_ (W)w, ++preparecnt); |
4077 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4839 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4078 | prepares [preparecnt - 1] = w; |
4840 | prepares [preparecnt - 1] = w; |
4079 | |
4841 | |
4080 | EV_FREQUENT_CHECK; |
4842 | EV_FREQUENT_CHECK; |
4081 | } |
4843 | } |
4082 | |
4844 | |
4083 | void |
4845 | void |
4084 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4846 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4085 | { |
4847 | { |
4086 | clear_pending (EV_A_ (W)w); |
4848 | clear_pending (EV_A_ (W)w); |
4087 | if (expect_false (!ev_is_active (w))) |
4849 | if (ecb_expect_false (!ev_is_active (w))) |
4088 | return; |
4850 | return; |
4089 | |
4851 | |
4090 | EV_FREQUENT_CHECK; |
4852 | EV_FREQUENT_CHECK; |
4091 | |
4853 | |
4092 | { |
4854 | { |
… | |
… | |
4102 | } |
4864 | } |
4103 | #endif |
4865 | #endif |
4104 | |
4866 | |
4105 | #if EV_CHECK_ENABLE |
4867 | #if EV_CHECK_ENABLE |
4106 | void |
4868 | void |
4107 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4869 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4108 | { |
4870 | { |
4109 | if (expect_false (ev_is_active (w))) |
4871 | if (ecb_expect_false (ev_is_active (w))) |
4110 | return; |
4872 | return; |
4111 | |
4873 | |
4112 | EV_FREQUENT_CHECK; |
4874 | EV_FREQUENT_CHECK; |
4113 | |
4875 | |
4114 | ev_start (EV_A_ (W)w, ++checkcnt); |
4876 | ev_start (EV_A_ (W)w, ++checkcnt); |
4115 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4877 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4116 | checks [checkcnt - 1] = w; |
4878 | checks [checkcnt - 1] = w; |
4117 | |
4879 | |
4118 | EV_FREQUENT_CHECK; |
4880 | EV_FREQUENT_CHECK; |
4119 | } |
4881 | } |
4120 | |
4882 | |
4121 | void |
4883 | void |
4122 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4884 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4123 | { |
4885 | { |
4124 | clear_pending (EV_A_ (W)w); |
4886 | clear_pending (EV_A_ (W)w); |
4125 | if (expect_false (!ev_is_active (w))) |
4887 | if (ecb_expect_false (!ev_is_active (w))) |
4126 | return; |
4888 | return; |
4127 | |
4889 | |
4128 | EV_FREQUENT_CHECK; |
4890 | EV_FREQUENT_CHECK; |
4129 | |
4891 | |
4130 | { |
4892 | { |
… | |
… | |
4139 | EV_FREQUENT_CHECK; |
4901 | EV_FREQUENT_CHECK; |
4140 | } |
4902 | } |
4141 | #endif |
4903 | #endif |
4142 | |
4904 | |
4143 | #if EV_EMBED_ENABLE |
4905 | #if EV_EMBED_ENABLE |
4144 | void noinline |
4906 | ecb_noinline |
|
|
4907 | void |
4145 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4908 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4146 | { |
4909 | { |
4147 | ev_run (w->other, EVRUN_NOWAIT); |
4910 | ev_run (w->other, EVRUN_NOWAIT); |
4148 | } |
4911 | } |
4149 | |
4912 | |
4150 | static void |
4913 | static void |
… | |
… | |
4198 | ev_idle_stop (EV_A_ idle); |
4961 | ev_idle_stop (EV_A_ idle); |
4199 | } |
4962 | } |
4200 | #endif |
4963 | #endif |
4201 | |
4964 | |
4202 | void |
4965 | void |
4203 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4966 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4204 | { |
4967 | { |
4205 | if (expect_false (ev_is_active (w))) |
4968 | if (ecb_expect_false (ev_is_active (w))) |
4206 | return; |
4969 | return; |
4207 | |
4970 | |
4208 | { |
4971 | { |
4209 | EV_P = w->other; |
4972 | EV_P = w->other; |
4210 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4973 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4229 | |
4992 | |
4230 | EV_FREQUENT_CHECK; |
4993 | EV_FREQUENT_CHECK; |
4231 | } |
4994 | } |
4232 | |
4995 | |
4233 | void |
4996 | void |
4234 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4997 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4235 | { |
4998 | { |
4236 | clear_pending (EV_A_ (W)w); |
4999 | clear_pending (EV_A_ (W)w); |
4237 | if (expect_false (!ev_is_active (w))) |
5000 | if (ecb_expect_false (!ev_is_active (w))) |
4238 | return; |
5001 | return; |
4239 | |
5002 | |
4240 | EV_FREQUENT_CHECK; |
5003 | EV_FREQUENT_CHECK; |
4241 | |
5004 | |
4242 | ev_io_stop (EV_A_ &w->io); |
5005 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
4249 | } |
5012 | } |
4250 | #endif |
5013 | #endif |
4251 | |
5014 | |
4252 | #if EV_FORK_ENABLE |
5015 | #if EV_FORK_ENABLE |
4253 | void |
5016 | void |
4254 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
5017 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4255 | { |
5018 | { |
4256 | if (expect_false (ev_is_active (w))) |
5019 | if (ecb_expect_false (ev_is_active (w))) |
4257 | return; |
5020 | return; |
4258 | |
5021 | |
4259 | EV_FREQUENT_CHECK; |
5022 | EV_FREQUENT_CHECK; |
4260 | |
5023 | |
4261 | ev_start (EV_A_ (W)w, ++forkcnt); |
5024 | ev_start (EV_A_ (W)w, ++forkcnt); |
4262 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5025 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4263 | forks [forkcnt - 1] = w; |
5026 | forks [forkcnt - 1] = w; |
4264 | |
5027 | |
4265 | EV_FREQUENT_CHECK; |
5028 | EV_FREQUENT_CHECK; |
4266 | } |
5029 | } |
4267 | |
5030 | |
4268 | void |
5031 | void |
4269 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
5032 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4270 | { |
5033 | { |
4271 | clear_pending (EV_A_ (W)w); |
5034 | clear_pending (EV_A_ (W)w); |
4272 | if (expect_false (!ev_is_active (w))) |
5035 | if (ecb_expect_false (!ev_is_active (w))) |
4273 | return; |
5036 | return; |
4274 | |
5037 | |
4275 | EV_FREQUENT_CHECK; |
5038 | EV_FREQUENT_CHECK; |
4276 | |
5039 | |
4277 | { |
5040 | { |
… | |
… | |
4287 | } |
5050 | } |
4288 | #endif |
5051 | #endif |
4289 | |
5052 | |
4290 | #if EV_CLEANUP_ENABLE |
5053 | #if EV_CLEANUP_ENABLE |
4291 | void |
5054 | void |
4292 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
5055 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4293 | { |
5056 | { |
4294 | if (expect_false (ev_is_active (w))) |
5057 | if (ecb_expect_false (ev_is_active (w))) |
4295 | return; |
5058 | return; |
4296 | |
5059 | |
4297 | EV_FREQUENT_CHECK; |
5060 | EV_FREQUENT_CHECK; |
4298 | |
5061 | |
4299 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5062 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4300 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5063 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4301 | cleanups [cleanupcnt - 1] = w; |
5064 | cleanups [cleanupcnt - 1] = w; |
4302 | |
5065 | |
4303 | /* cleanup watchers should never keep a refcount on the loop */ |
5066 | /* cleanup watchers should never keep a refcount on the loop */ |
4304 | ev_unref (EV_A); |
5067 | ev_unref (EV_A); |
4305 | EV_FREQUENT_CHECK; |
5068 | EV_FREQUENT_CHECK; |
4306 | } |
5069 | } |
4307 | |
5070 | |
4308 | void |
5071 | void |
4309 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
5072 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4310 | { |
5073 | { |
4311 | clear_pending (EV_A_ (W)w); |
5074 | clear_pending (EV_A_ (W)w); |
4312 | if (expect_false (!ev_is_active (w))) |
5075 | if (ecb_expect_false (!ev_is_active (w))) |
4313 | return; |
5076 | return; |
4314 | |
5077 | |
4315 | EV_FREQUENT_CHECK; |
5078 | EV_FREQUENT_CHECK; |
4316 | ev_ref (EV_A); |
5079 | ev_ref (EV_A); |
4317 | |
5080 | |
… | |
… | |
4328 | } |
5091 | } |
4329 | #endif |
5092 | #endif |
4330 | |
5093 | |
4331 | #if EV_ASYNC_ENABLE |
5094 | #if EV_ASYNC_ENABLE |
4332 | void |
5095 | void |
4333 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
5096 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4334 | { |
5097 | { |
4335 | if (expect_false (ev_is_active (w))) |
5098 | if (ecb_expect_false (ev_is_active (w))) |
4336 | return; |
5099 | return; |
4337 | |
5100 | |
4338 | w->sent = 0; |
5101 | w->sent = 0; |
4339 | |
5102 | |
4340 | evpipe_init (EV_A); |
5103 | evpipe_init (EV_A); |
4341 | |
5104 | |
4342 | EV_FREQUENT_CHECK; |
5105 | EV_FREQUENT_CHECK; |
4343 | |
5106 | |
4344 | ev_start (EV_A_ (W)w, ++asynccnt); |
5107 | ev_start (EV_A_ (W)w, ++asynccnt); |
4345 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5108 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4346 | asyncs [asynccnt - 1] = w; |
5109 | asyncs [asynccnt - 1] = w; |
4347 | |
5110 | |
4348 | EV_FREQUENT_CHECK; |
5111 | EV_FREQUENT_CHECK; |
4349 | } |
5112 | } |
4350 | |
5113 | |
4351 | void |
5114 | void |
4352 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
5115 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4353 | { |
5116 | { |
4354 | clear_pending (EV_A_ (W)w); |
5117 | clear_pending (EV_A_ (W)w); |
4355 | if (expect_false (!ev_is_active (w))) |
5118 | if (ecb_expect_false (!ev_is_active (w))) |
4356 | return; |
5119 | return; |
4357 | |
5120 | |
4358 | EV_FREQUENT_CHECK; |
5121 | EV_FREQUENT_CHECK; |
4359 | |
5122 | |
4360 | { |
5123 | { |
… | |
… | |
4368 | |
5131 | |
4369 | EV_FREQUENT_CHECK; |
5132 | EV_FREQUENT_CHECK; |
4370 | } |
5133 | } |
4371 | |
5134 | |
4372 | void |
5135 | void |
4373 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5136 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4374 | { |
5137 | { |
4375 | w->sent = 1; |
5138 | w->sent = 1; |
4376 | evpipe_write (EV_A_ &async_pending); |
5139 | evpipe_write (EV_A_ &async_pending); |
4377 | } |
5140 | } |
4378 | #endif |
5141 | #endif |
… | |
… | |
4415 | |
5178 | |
4416 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5179 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4417 | } |
5180 | } |
4418 | |
5181 | |
4419 | void |
5182 | void |
4420 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5183 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4421 | { |
5184 | { |
4422 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5185 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4423 | |
|
|
4424 | if (expect_false (!once)) |
|
|
4425 | { |
|
|
4426 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4427 | return; |
|
|
4428 | } |
|
|
4429 | |
5186 | |
4430 | once->cb = cb; |
5187 | once->cb = cb; |
4431 | once->arg = arg; |
5188 | once->arg = arg; |
4432 | |
5189 | |
4433 | ev_init (&once->io, once_cb_io); |
5190 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4446 | } |
5203 | } |
4447 | |
5204 | |
4448 | /*****************************************************************************/ |
5205 | /*****************************************************************************/ |
4449 | |
5206 | |
4450 | #if EV_WALK_ENABLE |
5207 | #if EV_WALK_ENABLE |
4451 | void ecb_cold |
5208 | ecb_cold |
|
|
5209 | void |
4452 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5210 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4453 | { |
5211 | { |
4454 | int i, j; |
5212 | int i, j; |
4455 | ev_watcher_list *wl, *wn; |
5213 | ev_watcher_list *wl, *wn; |
4456 | |
5214 | |
4457 | if (types & (EV_IO | EV_EMBED)) |
5215 | if (types & (EV_IO | EV_EMBED)) |