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) 2007-2020 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
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40 | #pragma clang diagnostic ignored "-Wunused-value" |
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41 | #pragma clang diagnostic ignored "-Wcomment" |
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42 | #pragma clang diagnostic ignored "-Wextern-initializer" |
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43 | |
40 | /* this big block deduces configuration from config.h */ |
44 | /* this big block deduces configuration from config.h */ |
41 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
42 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
43 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
44 | # else |
48 | # else |
45 | # include "config.h" |
49 | # include "config.h" |
46 | # endif |
50 | # endif |
47 | |
51 | |
48 | #if HAVE_FLOOR |
52 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
53 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
54 | # define EV_USE_FLOOR 1 |
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|
55 | # endif |
51 | # endif |
56 | # endif |
52 | #endif |
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53 | |
57 | |
54 | # if HAVE_CLOCK_SYSCALL |
58 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
59 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
60 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
61 | # ifndef EV_USE_REALTIME |
… | |
… | |
115 | # else |
119 | # else |
116 | # undef EV_USE_EPOLL |
120 | # undef EV_USE_EPOLL |
117 | # define EV_USE_EPOLL 0 |
121 | # define EV_USE_EPOLL 0 |
118 | # endif |
122 | # endif |
119 | |
123 | |
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124 | # if HAVE_LINUX_AIO_ABI_H |
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125 | # ifndef EV_USE_LINUXAIO |
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126 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
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127 | # endif |
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128 | # else |
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129 | # undef EV_USE_LINUXAIO |
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130 | # define EV_USE_LINUXAIO 0 |
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131 | # endif |
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132 | |
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133 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
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134 | # ifndef EV_USE_IOURING |
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135 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
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136 | # endif |
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137 | # else |
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138 | # undef EV_USE_IOURING |
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139 | # define EV_USE_IOURING 0 |
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140 | # endif |
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141 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
142 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
143 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
144 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
145 | # endif |
124 | # else |
146 | # else |
… | |
… | |
159 | # endif |
181 | # endif |
160 | # else |
182 | # else |
161 | # undef EV_USE_EVENTFD |
183 | # undef EV_USE_EVENTFD |
162 | # define EV_USE_EVENTFD 0 |
184 | # define EV_USE_EVENTFD 0 |
163 | # endif |
185 | # endif |
164 | |
186 | |
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187 | # if HAVE_SYS_TIMERFD_H |
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188 | # ifndef EV_USE_TIMERFD |
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189 | # define EV_USE_TIMERFD EV_FEATURE_OS |
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190 | # endif |
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191 | # else |
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192 | # undef EV_USE_TIMERFD |
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193 | # define EV_USE_TIMERFD 0 |
165 | #endif |
194 | # endif |
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195 | |
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196 | #endif |
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197 | |
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198 | /* OS X, in its infinite idiocy, actually HARDCODES |
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199 | * a limit of 1024 into their select. Where people have brains, |
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200 | * OS X engineers apparently have a vacuum. Or maybe they were |
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201 | * ordered to have a vacuum, or they do anything for money. |
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202 | * This might help. Or not. |
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203 | * Note that this must be defined early, as other include files |
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204 | * will rely on this define as well. |
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205 | */ |
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206 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
207 | |
167 | #include <stdlib.h> |
208 | #include <stdlib.h> |
168 | #include <string.h> |
209 | #include <string.h> |
169 | #include <fcntl.h> |
210 | #include <fcntl.h> |
170 | #include <stddef.h> |
211 | #include <stddef.h> |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
249 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
250 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
251 | # endif |
211 | # undef EV_AVOID_STDIO |
252 | # undef EV_AVOID_STDIO |
212 | #endif |
253 | #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 | |
254 | |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
255 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
223 | |
256 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
257 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
258 | #if defined EV_NSIG |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
274 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
275 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
276 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
277 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
278 | #else |
246 | # error "unable to find value for NSIG, please report" |
279 | # 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 |
280 | #endif |
251 | |
281 | |
252 | #ifndef EV_USE_FLOOR |
282 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
283 | # define EV_USE_FLOOR 0 |
254 | #endif |
284 | #endif |
255 | |
285 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
286 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
287 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
288 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
289 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
290 | # define EV_USE_CLOCK_SYSCALL 0 |
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291 | # endif |
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292 | #endif |
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293 | |
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294 | #if !(_POSIX_TIMERS > 0) |
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295 | # ifndef EV_USE_MONOTONIC |
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296 | # define EV_USE_MONOTONIC 0 |
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297 | # endif |
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298 | # ifndef EV_USE_REALTIME |
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299 | # define EV_USE_REALTIME 0 |
261 | # endif |
300 | # endif |
262 | #endif |
301 | #endif |
263 | |
302 | |
264 | #ifndef EV_USE_MONOTONIC |
303 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
304 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
307 | |
346 | |
308 | #ifndef EV_USE_PORT |
347 | #ifndef EV_USE_PORT |
309 | # define EV_USE_PORT 0 |
348 | # define EV_USE_PORT 0 |
310 | #endif |
349 | #endif |
311 | |
350 | |
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351 | #ifndef EV_USE_LINUXAIO |
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352 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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353 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
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354 | # else |
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355 | # define EV_USE_LINUXAIO 0 |
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356 | # endif |
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357 | #endif |
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358 | |
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359 | #ifndef EV_USE_IOURING |
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360 | # if __linux /* later checks might disable again */ |
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361 | # define EV_USE_IOURING 1 |
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362 | # else |
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363 | # define EV_USE_IOURING 0 |
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364 | # endif |
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365 | #endif |
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366 | |
312 | #ifndef EV_USE_INOTIFY |
367 | #ifndef EV_USE_INOTIFY |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
368 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
369 | # define EV_USE_INOTIFY EV_FEATURE_OS |
315 | # else |
370 | # else |
316 | # define EV_USE_INOTIFY 0 |
371 | # define EV_USE_INOTIFY 0 |
… | |
… | |
339 | # else |
394 | # else |
340 | # define EV_USE_SIGNALFD 0 |
395 | # define EV_USE_SIGNALFD 0 |
341 | # endif |
396 | # endif |
342 | #endif |
397 | #endif |
343 | |
398 | |
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399 | #ifndef EV_USE_TIMERFD |
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400 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
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401 | # define EV_USE_TIMERFD EV_FEATURE_OS |
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402 | # else |
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403 | # define EV_USE_TIMERFD 0 |
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404 | # endif |
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405 | #endif |
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406 | |
344 | #if 0 /* debugging */ |
407 | #if 0 /* debugging */ |
345 | # define EV_VERIFY 3 |
408 | # define EV_VERIFY 3 |
346 | # define EV_USE_4HEAP 1 |
409 | # define EV_USE_4HEAP 1 |
347 | # define EV_HEAP_CACHE_AT 1 |
410 | # define EV_HEAP_CACHE_AT 1 |
348 | #endif |
411 | #endif |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
418 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
419 | #endif |
357 | |
420 | |
358 | #ifndef EV_HEAP_CACHE_AT |
421 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
422 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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423 | #endif |
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424 | |
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425 | #ifdef __ANDROID__ |
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426 | /* supposedly, android doesn't typedef fd_mask */ |
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427 | # undef EV_USE_SELECT |
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428 | # define EV_USE_SELECT 0 |
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429 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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430 | # undef EV_USE_CLOCK_SYSCALL |
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431 | # define EV_USE_CLOCK_SYSCALL 0 |
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432 | #endif |
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433 | |
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434 | /* aix's poll.h seems to cause lots of trouble */ |
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435 | #ifdef _AIX |
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436 | /* AIX has a completely broken poll.h header */ |
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437 | # undef EV_USE_POLL |
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438 | # define EV_USE_POLL 0 |
360 | #endif |
439 | #endif |
361 | |
440 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
441 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
442 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
443 | #if EV_USE_CLOCK_SYSCALL |
365 | # include <sys/syscall.h> |
444 | # include <sys/syscall.h> |
366 | # ifdef SYS_clock_gettime |
445 | # ifdef SYS_clock_gettime |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
446 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
368 | # undef EV_USE_MONOTONIC |
447 | # undef EV_USE_MONOTONIC |
369 | # define EV_USE_MONOTONIC 1 |
448 | # define EV_USE_MONOTONIC 1 |
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449 | # define EV_NEED_SYSCALL 1 |
370 | # else |
450 | # else |
371 | # undef EV_USE_CLOCK_SYSCALL |
451 | # undef EV_USE_CLOCK_SYSCALL |
372 | # define EV_USE_CLOCK_SYSCALL 0 |
452 | # define EV_USE_CLOCK_SYSCALL 0 |
373 | # endif |
453 | # endif |
374 | #endif |
454 | #endif |
375 | |
455 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
456 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
457 | |
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 |
458 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
459 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
460 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
461 | #endif |
388 | |
462 | |
… | |
… | |
392 | #endif |
466 | #endif |
393 | |
467 | |
394 | #if !EV_STAT_ENABLE |
468 | #if !EV_STAT_ENABLE |
395 | # undef EV_USE_INOTIFY |
469 | # undef EV_USE_INOTIFY |
396 | # define EV_USE_INOTIFY 0 |
470 | # define EV_USE_INOTIFY 0 |
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471 | #endif |
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472 | |
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473 | #if __linux && EV_USE_IOURING |
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474 | # include <linux/version.h> |
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475 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
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476 | # undef EV_USE_IOURING |
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477 | # define EV_USE_IOURING 0 |
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478 | # endif |
397 | #endif |
479 | #endif |
398 | |
480 | |
399 | #if !EV_USE_NANOSLEEP |
481 | #if !EV_USE_NANOSLEEP |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
482 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
401 | # if !defined _WIN32 && !defined __hpux |
483 | # if !defined _WIN32 && !defined __hpux |
402 | # include <sys/select.h> |
484 | # include <sys/select.h> |
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485 | # endif |
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486 | #endif |
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487 | |
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488 | #if EV_USE_LINUXAIO |
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489 | # include <sys/syscall.h> |
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490 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
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491 | # define EV_NEED_SYSCALL 1 |
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492 | # else |
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493 | # undef EV_USE_LINUXAIO |
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494 | # define EV_USE_LINUXAIO 0 |
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495 | # endif |
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496 | #endif |
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497 | |
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498 | #if EV_USE_IOURING |
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499 | # include <sys/syscall.h> |
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500 | # if !SYS_io_uring_register && __linux && !__alpha |
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501 | # define SYS_io_uring_setup 425 |
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502 | # define SYS_io_uring_enter 426 |
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503 | # define SYS_io_uring_register 427 |
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504 | # endif |
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505 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
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506 | # define EV_NEED_SYSCALL 1 |
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507 | # else |
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508 | # undef EV_USE_IOURING |
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509 | # define EV_USE_IOURING 0 |
403 | # endif |
510 | # endif |
404 | #endif |
511 | #endif |
405 | |
512 | |
406 | #if EV_USE_INOTIFY |
513 | #if EV_USE_INOTIFY |
407 | # include <sys/statfs.h> |
514 | # include <sys/statfs.h> |
… | |
… | |
412 | # define EV_USE_INOTIFY 0 |
519 | # define EV_USE_INOTIFY 0 |
413 | # endif |
520 | # endif |
414 | #endif |
521 | #endif |
415 | |
522 | |
416 | #if EV_USE_EVENTFD |
523 | #if EV_USE_EVENTFD |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
524 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
418 | # include <stdint.h> |
525 | # include <stdint.h> |
419 | # ifndef EFD_NONBLOCK |
526 | # ifndef EFD_NONBLOCK |
420 | # define EFD_NONBLOCK O_NONBLOCK |
527 | # define EFD_NONBLOCK O_NONBLOCK |
421 | # endif |
528 | # endif |
422 | # ifndef EFD_CLOEXEC |
529 | # ifndef EFD_CLOEXEC |
… | |
… | |
428 | # endif |
535 | # endif |
429 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
536 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
430 | #endif |
537 | #endif |
431 | |
538 | |
432 | #if EV_USE_SIGNALFD |
539 | #if EV_USE_SIGNALFD |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
540 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
434 | # include <stdint.h> |
541 | # include <stdint.h> |
435 | # ifndef SFD_NONBLOCK |
542 | # ifndef SFD_NONBLOCK |
436 | # define SFD_NONBLOCK O_NONBLOCK |
543 | # define SFD_NONBLOCK O_NONBLOCK |
437 | # endif |
544 | # endif |
438 | # ifndef SFD_CLOEXEC |
545 | # ifndef SFD_CLOEXEC |
… | |
… | |
440 | # define SFD_CLOEXEC O_CLOEXEC |
547 | # define SFD_CLOEXEC O_CLOEXEC |
441 | # else |
548 | # else |
442 | # define SFD_CLOEXEC 02000000 |
549 | # define SFD_CLOEXEC 02000000 |
443 | # endif |
550 | # endif |
444 | # endif |
551 | # endif |
445 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
552 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
446 | |
553 | |
447 | struct signalfd_siginfo |
554 | struct signalfd_siginfo |
448 | { |
555 | { |
449 | uint32_t ssi_signo; |
556 | uint32_t ssi_signo; |
450 | char pad[128 - sizeof (uint32_t)]; |
557 | char pad[128 - sizeof (uint32_t)]; |
451 | }; |
558 | }; |
452 | #endif |
559 | #endif |
453 | |
560 | |
454 | /**/ |
561 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
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562 | #if EV_USE_TIMERFD |
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563 | # include <sys/timerfd.h> |
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564 | /* timerfd is only used for periodics */ |
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565 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
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566 | # undef EV_USE_TIMERFD |
|
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567 | # define EV_USE_TIMERFD 0 |
|
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568 | # endif |
|
|
569 | #endif |
|
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570 | |
|
|
571 | /*****************************************************************************/ |
455 | |
572 | |
456 | #if EV_VERIFY >= 3 |
573 | #if EV_VERIFY >= 3 |
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
574 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
458 | #else |
575 | #else |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
576 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
464 | * This value is good at least till the year 4000. |
581 | * This value is good at least till the year 4000. |
465 | */ |
582 | */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
583 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
584 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
468 | |
585 | |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
586 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
587 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
|
|
588 | #define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */ |
471 | |
589 | |
|
|
590 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
591 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
592 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
593 | #define EV_TSTAMP_HUGE \ |
|
|
594 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
595 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
596 | : 2147483647.) \ |
|
|
597 | |
|
|
598 | #ifndef EV_TS_CONST |
|
|
599 | # define EV_TS_CONST(nv) nv |
|
|
600 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
601 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
602 | # 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) |
603 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
604 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
605 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
606 | #endif |
474 | |
607 | |
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
608 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
476 | /* ECB.H BEGIN */ |
609 | /* ECB.H BEGIN */ |
477 | /* |
610 | /* |
478 | * libecb - http://software.schmorp.de/pkg/libecb |
611 | * libecb - http://software.schmorp.de/pkg/libecb |
479 | * |
612 | * |
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
613 | * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de> |
481 | * Copyright (©) 2011 Emanuele Giaquinta |
614 | * Copyright (©) 2011 Emanuele Giaquinta |
482 | * All rights reserved. |
615 | * All rights reserved. |
483 | * |
616 | * |
484 | * Redistribution and use in source and binary forms, with or without modifica- |
617 | * Redistribution and use in source and binary forms, with or without modifica- |
485 | * tion, are permitted provided that the following conditions are met: |
618 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
632 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
633 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
634 | * 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 |
635 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
636 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
637 | * |
|
|
638 | * Alternatively, the contents of this file may be used under the terms of |
|
|
639 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
640 | * in which case the provisions of the GPL are applicable instead of |
|
|
641 | * the above. If you wish to allow the use of your version of this file |
|
|
642 | * only under the terms of the GPL and not to allow others to use your |
|
|
643 | * version of this file under the BSD license, indicate your decision |
|
|
644 | * by deleting the provisions above and replace them with the notice |
|
|
645 | * and other provisions required by the GPL. If you do not delete the |
|
|
646 | * provisions above, a recipient may use your version of this file under |
|
|
647 | * either the BSD or the GPL. |
504 | */ |
648 | */ |
505 | |
649 | |
506 | #ifndef ECB_H |
650 | #ifndef ECB_H |
507 | #define ECB_H |
651 | #define ECB_H |
508 | |
652 | |
509 | /* 16 bits major, 16 bits minor */ |
653 | /* 16 bits major, 16 bits minor */ |
510 | #define ECB_VERSION 0x00010002 |
654 | #define ECB_VERSION 0x00010008 |
511 | |
655 | |
512 | #ifdef _WIN32 |
656 | #include <string.h> /* for memcpy */ |
|
|
657 | |
|
|
658 | #if defined (_WIN32) && !defined (__MINGW32__) |
513 | typedef signed char int8_t; |
659 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
660 | typedef unsigned char uint8_t; |
|
|
661 | typedef signed char int_fast8_t; |
|
|
662 | typedef unsigned char uint_fast8_t; |
515 | typedef signed short int16_t; |
663 | typedef signed short int16_t; |
516 | typedef unsigned short uint16_t; |
664 | typedef unsigned short uint16_t; |
|
|
665 | typedef signed int int_fast16_t; |
|
|
666 | typedef unsigned int uint_fast16_t; |
517 | typedef signed int int32_t; |
667 | typedef signed int int32_t; |
518 | typedef unsigned int uint32_t; |
668 | typedef unsigned int uint32_t; |
|
|
669 | typedef signed int int_fast32_t; |
|
|
670 | typedef unsigned int uint_fast32_t; |
519 | #if __GNUC__ |
671 | #if __GNUC__ |
520 | typedef signed long long int64_t; |
672 | typedef signed long long int64_t; |
521 | typedef unsigned long long uint64_t; |
673 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
674 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
675 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
676 | typedef unsigned __int64 uint64_t; |
525 | #endif |
677 | #endif |
|
|
678 | typedef int64_t int_fast64_t; |
|
|
679 | typedef uint64_t uint_fast64_t; |
526 | #ifdef _WIN64 |
680 | #ifdef _WIN64 |
527 | #define ECB_PTRSIZE 8 |
681 | #define ECB_PTRSIZE 8 |
528 | typedef uint64_t uintptr_t; |
682 | typedef uint64_t uintptr_t; |
529 | typedef int64_t intptr_t; |
683 | typedef int64_t intptr_t; |
530 | #else |
684 | #else |
… | |
… | |
532 | typedef uint32_t uintptr_t; |
686 | typedef uint32_t uintptr_t; |
533 | typedef int32_t intptr_t; |
687 | typedef int32_t intptr_t; |
534 | #endif |
688 | #endif |
535 | #else |
689 | #else |
536 | #include <inttypes.h> |
690 | #include <inttypes.h> |
537 | #if UINTMAX_MAX > 0xffffffffU |
691 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
538 | #define ECB_PTRSIZE 8 |
692 | #define ECB_PTRSIZE 8 |
539 | #else |
693 | #else |
540 | #define ECB_PTRSIZE 4 |
694 | #define ECB_PTRSIZE 4 |
|
|
695 | #endif |
|
|
696 | #endif |
|
|
697 | |
|
|
698 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
699 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
700 | |
|
|
701 | #ifndef ECB_OPTIMIZE_SIZE |
|
|
702 | #if __OPTIMIZE_SIZE__ |
|
|
703 | #define ECB_OPTIMIZE_SIZE 1 |
|
|
704 | #else |
|
|
705 | #define ECB_OPTIMIZE_SIZE 0 |
|
|
706 | #endif |
|
|
707 | #endif |
|
|
708 | |
|
|
709 | /* work around x32 idiocy by defining proper macros */ |
|
|
710 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
711 | #if _ILP32 |
|
|
712 | #define ECB_AMD64_X32 1 |
|
|
713 | #else |
|
|
714 | #define ECB_AMD64 1 |
541 | #endif |
715 | #endif |
542 | #endif |
716 | #endif |
543 | |
717 | |
544 | /* many compilers define _GNUC_ to some versions but then only implement |
718 | /* many compilers define _GNUC_ to some versions but then only implement |
545 | * what their idiot authors think are the "more important" extensions, |
719 | * what their idiot authors think are the "more important" extensions, |
546 | * causing enormous grief in return for some better fake benchmark numbers. |
720 | * causing enormous grief in return for some better fake benchmark numbers. |
547 | * or so. |
721 | * or so. |
548 | * we try to detect these and simply assume they are not gcc - if they have |
722 | * we try to detect these and simply assume they are not gcc - if they have |
549 | * an issue with that they should have done it right in the first place. |
723 | * an issue with that they should have done it right in the first place. |
550 | */ |
724 | */ |
551 | #ifndef ECB_GCC_VERSION |
|
|
552 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
725 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
553 | #define ECB_GCC_VERSION(major,minor) 0 |
726 | #define ECB_GCC_VERSION(major,minor) 0 |
554 | #else |
727 | #else |
555 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
728 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
556 | #endif |
729 | #endif |
557 | #endif |
|
|
558 | |
730 | |
559 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
731 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
560 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
732 | |
561 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
733 | #if __clang__ && defined __has_builtin |
|
|
734 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
735 | #else |
|
|
736 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if __clang__ && defined __has_extension |
|
|
740 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
741 | #else |
|
|
742 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
743 | #endif |
|
|
744 | |
562 | #define ECB_CPP (__cplusplus+0) |
745 | #define ECB_CPP (__cplusplus+0) |
563 | #define ECB_CPP11 (__cplusplus >= 201103L) |
746 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
747 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
748 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
749 | |
|
|
750 | #if ECB_CPP |
|
|
751 | #define ECB_C 0 |
|
|
752 | #define ECB_STDC_VERSION 0 |
|
|
753 | #else |
|
|
754 | #define ECB_C 1 |
|
|
755 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
756 | #endif |
|
|
757 | |
|
|
758 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
759 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
760 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
564 | |
761 | |
565 | #if ECB_CPP |
762 | #if ECB_CPP |
566 | #define ECB_EXTERN_C extern "C" |
763 | #define ECB_EXTERN_C extern "C" |
567 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
764 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
568 | #define ECB_EXTERN_C_END } |
765 | #define ECB_EXTERN_C_END } |
… | |
… | |
583 | |
780 | |
584 | #if ECB_NO_SMP |
781 | #if ECB_NO_SMP |
585 | #define ECB_MEMORY_FENCE do { } while (0) |
782 | #define ECB_MEMORY_FENCE do { } while (0) |
586 | #endif |
783 | #endif |
587 | |
784 | |
|
|
785 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
786 | #if __xlC__ && ECB_CPP |
|
|
787 | #include <builtins.h> |
|
|
788 | #endif |
|
|
789 | |
|
|
790 | #if 1400 <= _MSC_VER |
|
|
791 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
792 | #endif |
|
|
793 | |
588 | #ifndef ECB_MEMORY_FENCE |
794 | #ifndef ECB_MEMORY_FENCE |
589 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
795 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
796 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
590 | #if __i386 || __i386__ |
797 | #if __i386 || __i386__ |
591 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
798 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
592 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
799 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
593 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
800 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
594 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
801 | #elif ECB_GCC_AMD64 |
595 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
802 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
596 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
803 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
597 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
804 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
598 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
805 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
599 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
806 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
807 | #elif defined __ARM_ARCH_2__ \ |
|
|
808 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
809 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
810 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
811 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
812 | || defined __ARM_ARCH_5TEJ__ |
|
|
813 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
600 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
814 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
601 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
815 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
816 | || defined __ARM_ARCH_6T2__ |
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
817 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
603 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
818 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
604 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
819 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
606 | #elif __sparc || __sparc__ |
821 | #elif __aarch64__ |
|
|
822 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
823 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
824 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
825 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
826 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
610 | #elif defined __s390__ || defined __s390x__ |
827 | #elif defined __s390__ || defined __s390x__ |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
828 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
612 | #elif defined __mips__ |
829 | #elif defined __mips__ |
|
|
830 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
831 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
613 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
832 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
614 | #elif defined __alpha__ |
833 | #elif defined __alpha__ |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
834 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
616 | #elif defined __hppa__ |
835 | #elif defined __hppa__ |
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
836 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
618 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
837 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
619 | #elif defined __ia64__ |
838 | #elif defined __ia64__ |
620 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
839 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
840 | #elif defined __m68k__ |
|
|
841 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
842 | #elif defined __m88k__ |
|
|
843 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
844 | #elif defined __sh__ |
|
|
845 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
621 | #endif |
846 | #endif |
622 | #endif |
847 | #endif |
623 | #endif |
848 | #endif |
624 | |
849 | |
625 | #ifndef ECB_MEMORY_FENCE |
850 | #ifndef ECB_MEMORY_FENCE |
626 | #if ECB_GCC_VERSION(4,7) |
851 | #if ECB_GCC_VERSION(4,7) |
627 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
852 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
628 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
853 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
854 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
855 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
856 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
629 | |
857 | |
630 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
858 | #elif ECB_CLANG_EXTENSION(c_atomic) |
631 | * without risking compile time errors with other compilers. We *could* |
|
|
632 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
633 | * around this shit time and again. |
|
|
634 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
635 | * // see comment below (stdatomic.h) about the C11 memory model. |
859 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
636 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
860 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
637 | */ |
861 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
862 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
638 | |
864 | |
639 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
865 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
640 | #define ECB_MEMORY_FENCE __sync_synchronize () |
866 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
867 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
868 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
869 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
870 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
871 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
872 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
641 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
873 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
642 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
874 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
643 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
875 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
644 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
876 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
645 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
877 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
646 | #elif defined _WIN32 |
878 | #elif defined _WIN32 |
647 | #include <WinNT.h> |
879 | #include <WinNT.h> |
648 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
880 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
649 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
881 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
650 | #include <mbarrier.h> |
882 | #include <mbarrier.h> |
651 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
883 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
652 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
884 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
653 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
885 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
886 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
654 | #elif __xlC__ |
887 | #elif __xlC__ |
655 | #define ECB_MEMORY_FENCE __sync () |
888 | #define ECB_MEMORY_FENCE __sync () |
656 | #endif |
889 | #endif |
657 | #endif |
890 | #endif |
658 | |
891 | |
659 | #ifndef ECB_MEMORY_FENCE |
892 | #ifndef ECB_MEMORY_FENCE |
660 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
893 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
661 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
894 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
662 | /* not just C11 atomics and atomic accesses */ |
895 | /* not just C11 atomics and atomic accesses */ |
663 | #include <stdatomic.h> |
896 | #include <stdatomic.h> |
664 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
665 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
666 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
667 | /* for most usages, or gcc and clang have a bug */ |
|
|
668 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
669 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
670 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
897 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
898 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
899 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
671 | #endif |
900 | #endif |
672 | #endif |
901 | #endif |
673 | |
902 | |
674 | #ifndef ECB_MEMORY_FENCE |
903 | #ifndef ECB_MEMORY_FENCE |
675 | #if !ECB_AVOID_PTHREADS |
904 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
695 | |
924 | |
696 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
925 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
697 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
926 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
698 | #endif |
927 | #endif |
699 | |
928 | |
|
|
929 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
930 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
931 | #endif |
|
|
932 | |
700 | /*****************************************************************************/ |
933 | /*****************************************************************************/ |
701 | |
934 | |
702 | #if __cplusplus |
935 | #if ECB_CPP |
703 | #define ecb_inline static inline |
936 | #define ecb_inline static inline |
704 | #elif ECB_GCC_VERSION(2,5) |
937 | #elif ECB_GCC_VERSION(2,5) |
705 | #define ecb_inline static __inline__ |
938 | #define ecb_inline static __inline__ |
706 | #elif ECB_C99 |
939 | #elif ECB_C99 |
707 | #define ecb_inline static inline |
940 | #define ecb_inline static inline |
… | |
… | |
721 | |
954 | |
722 | #define ECB_CONCAT_(a, b) a ## b |
955 | #define ECB_CONCAT_(a, b) a ## b |
723 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
956 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
724 | #define ECB_STRINGIFY_(a) # a |
957 | #define ECB_STRINGIFY_(a) # a |
725 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
958 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
959 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
726 | |
960 | |
727 | #define ecb_function_ ecb_inline |
961 | #define ecb_function_ ecb_inline |
728 | |
962 | |
729 | #if ECB_GCC_VERSION(3,1) |
963 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
730 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
964 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
965 | #else |
|
|
966 | #define ecb_attribute(attrlist) |
|
|
967 | #endif |
|
|
968 | |
|
|
969 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
731 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
970 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
971 | #else |
|
|
972 | /* possible C11 impl for integral types |
|
|
973 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
974 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
975 | |
|
|
976 | #define ecb_is_constant(expr) 0 |
|
|
977 | #endif |
|
|
978 | |
|
|
979 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
732 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
980 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
981 | #else |
|
|
982 | #define ecb_expect(expr,value) (expr) |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
733 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
986 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
734 | #else |
987 | #else |
735 | #define ecb_attribute(attrlist) |
|
|
736 | #define ecb_is_constant(expr) 0 |
|
|
737 | #define ecb_expect(expr,value) (expr) |
|
|
738 | #define ecb_prefetch(addr,rw,locality) |
988 | #define ecb_prefetch(addr,rw,locality) |
739 | #endif |
989 | #endif |
740 | |
990 | |
741 | /* no emulation for ecb_decltype */ |
991 | /* no emulation for ecb_decltype */ |
742 | #if ECB_GCC_VERSION(4,5) |
992 | #if ECB_CPP11 |
|
|
993 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
994 | template<class T> struct ecb_decltype_t { typedef T type; }; |
743 | #define ecb_decltype(x) __decltype(x) |
995 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
744 | #elif ECB_GCC_VERSION(3,0) |
996 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
745 | #define ecb_decltype(x) __typeof(x) |
997 | #define ecb_decltype(x) __typeof__ (x) |
746 | #endif |
998 | #endif |
747 | |
999 | |
|
|
1000 | #if _MSC_VER >= 1300 |
|
|
1001 | #define ecb_deprecated __declspec (deprecated) |
|
|
1002 | #else |
|
|
1003 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
1004 | #endif |
|
|
1005 | |
|
|
1006 | #if _MSC_VER >= 1500 |
|
|
1007 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
1008 | #elif ECB_GCC_VERSION(4,5) |
|
|
1009 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
1010 | #else |
|
|
1011 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
1012 | #endif |
|
|
1013 | |
|
|
1014 | #if _MSC_VER >= 1400 |
|
|
1015 | #define ecb_noinline __declspec (noinline) |
|
|
1016 | #else |
748 | #define ecb_noinline ecb_attribute ((__noinline__)) |
1017 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
1018 | #endif |
|
|
1019 | |
749 | #define ecb_unused ecb_attribute ((__unused__)) |
1020 | #define ecb_unused ecb_attribute ((__unused__)) |
750 | #define ecb_const ecb_attribute ((__const__)) |
1021 | #define ecb_const ecb_attribute ((__const__)) |
751 | #define ecb_pure ecb_attribute ((__pure__)) |
1022 | #define ecb_pure ecb_attribute ((__pure__)) |
752 | |
1023 | |
753 | #if ECB_C11 |
1024 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1025 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
754 | #define ecb_noreturn _Noreturn |
1026 | #define ecb_noreturn _Noreturn |
|
|
1027 | #elif ECB_CPP11 |
|
|
1028 | #define ecb_noreturn [[noreturn]] |
|
|
1029 | #elif _MSC_VER >= 1200 |
|
|
1030 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1031 | #define ecb_noreturn __declspec (noreturn) |
755 | #else |
1032 | #else |
756 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
1033 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
757 | #endif |
1034 | #endif |
758 | |
1035 | |
759 | #if ECB_GCC_VERSION(4,3) |
1036 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
774 | /* for compatibility to the rest of the world */ |
1051 | /* for compatibility to the rest of the world */ |
775 | #define ecb_likely(expr) ecb_expect_true (expr) |
1052 | #define ecb_likely(expr) ecb_expect_true (expr) |
776 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
1053 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
777 | |
1054 | |
778 | /* count trailing zero bits and count # of one bits */ |
1055 | /* count trailing zero bits and count # of one bits */ |
779 | #if ECB_GCC_VERSION(3,4) |
1056 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1057 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1058 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1059 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
780 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
1060 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
781 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
1061 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
782 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
1062 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
783 | #define ecb_ctz32(x) __builtin_ctz (x) |
1063 | #define ecb_ctz32(x) __builtin_ctz (x) |
784 | #define ecb_ctz64(x) __builtin_ctzll (x) |
1064 | #define ecb_ctz64(x) __builtin_ctzll (x) |
785 | #define ecb_popcount32(x) __builtin_popcount (x) |
1065 | #define ecb_popcount32(x) __builtin_popcount (x) |
786 | /* no popcountll */ |
1066 | /* no popcountll */ |
787 | #else |
1067 | #else |
788 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
1068 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
789 | ecb_function_ int |
1069 | ecb_function_ ecb_const int |
790 | ecb_ctz32 (uint32_t x) |
1070 | ecb_ctz32 (uint32_t x) |
791 | { |
1071 | { |
|
|
1072 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1073 | unsigned long r; |
|
|
1074 | _BitScanForward (&r, x); |
|
|
1075 | return (int)r; |
|
|
1076 | #else |
792 | int r = 0; |
1077 | int r = 0; |
793 | |
1078 | |
794 | x &= ~x + 1; /* this isolates the lowest bit */ |
1079 | x &= ~x + 1; /* this isolates the lowest bit */ |
795 | |
1080 | |
796 | #if ECB_branchless_on_i386 |
1081 | #if ECB_branchless_on_i386 |
… | |
… | |
806 | if (x & 0xff00ff00) r += 8; |
1091 | if (x & 0xff00ff00) r += 8; |
807 | if (x & 0xffff0000) r += 16; |
1092 | if (x & 0xffff0000) r += 16; |
808 | #endif |
1093 | #endif |
809 | |
1094 | |
810 | return r; |
1095 | return r; |
|
|
1096 | #endif |
811 | } |
1097 | } |
812 | |
1098 | |
813 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1099 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
814 | ecb_function_ int |
1100 | ecb_function_ ecb_const int |
815 | ecb_ctz64 (uint64_t x) |
1101 | ecb_ctz64 (uint64_t x) |
816 | { |
1102 | { |
|
|
1103 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1104 | unsigned long r; |
|
|
1105 | _BitScanForward64 (&r, x); |
|
|
1106 | return (int)r; |
|
|
1107 | #else |
817 | int shift = x & 0xffffffffU ? 0 : 32; |
1108 | int shift = x & 0xffffffff ? 0 : 32; |
818 | return ecb_ctz32 (x >> shift) + shift; |
1109 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1110 | #endif |
819 | } |
1111 | } |
820 | |
1112 | |
821 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1113 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
822 | ecb_function_ int |
1114 | ecb_function_ ecb_const int |
823 | ecb_popcount32 (uint32_t x) |
1115 | ecb_popcount32 (uint32_t x) |
824 | { |
1116 | { |
825 | x -= (x >> 1) & 0x55555555; |
1117 | x -= (x >> 1) & 0x55555555; |
826 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1118 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
827 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1119 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
828 | x *= 0x01010101; |
1120 | x *= 0x01010101; |
829 | |
1121 | |
830 | return x >> 24; |
1122 | return x >> 24; |
831 | } |
1123 | } |
832 | |
1124 | |
833 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1125 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
834 | ecb_function_ int ecb_ld32 (uint32_t x) |
1126 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
835 | { |
1127 | { |
|
|
1128 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1129 | unsigned long r; |
|
|
1130 | _BitScanReverse (&r, x); |
|
|
1131 | return (int)r; |
|
|
1132 | #else |
836 | int r = 0; |
1133 | int r = 0; |
837 | |
1134 | |
838 | if (x >> 16) { x >>= 16; r += 16; } |
1135 | if (x >> 16) { x >>= 16; r += 16; } |
839 | if (x >> 8) { x >>= 8; r += 8; } |
1136 | if (x >> 8) { x >>= 8; r += 8; } |
840 | if (x >> 4) { x >>= 4; r += 4; } |
1137 | if (x >> 4) { x >>= 4; r += 4; } |
841 | if (x >> 2) { x >>= 2; r += 2; } |
1138 | if (x >> 2) { x >>= 2; r += 2; } |
842 | if (x >> 1) { r += 1; } |
1139 | if (x >> 1) { r += 1; } |
843 | |
1140 | |
844 | return r; |
1141 | return r; |
|
|
1142 | #endif |
845 | } |
1143 | } |
846 | |
1144 | |
847 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1145 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
848 | ecb_function_ int ecb_ld64 (uint64_t x) |
1146 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
849 | { |
1147 | { |
|
|
1148 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1149 | unsigned long r; |
|
|
1150 | _BitScanReverse64 (&r, x); |
|
|
1151 | return (int)r; |
|
|
1152 | #else |
850 | int r = 0; |
1153 | int r = 0; |
851 | |
1154 | |
852 | if (x >> 32) { x >>= 32; r += 32; } |
1155 | if (x >> 32) { x >>= 32; r += 32; } |
853 | |
1156 | |
854 | return r + ecb_ld32 (x); |
1157 | return r + ecb_ld32 (x); |
|
|
1158 | #endif |
855 | } |
1159 | } |
856 | #endif |
1160 | #endif |
857 | |
1161 | |
858 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1162 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
859 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1163 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
860 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1164 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
861 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1165 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
862 | |
1166 | |
863 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1167 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
864 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1168 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
865 | { |
1169 | { |
866 | return ( (x * 0x0802U & 0x22110U) |
1170 | return ( (x * 0x0802U & 0x22110U) |
867 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1171 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
868 | } |
1172 | } |
869 | |
1173 | |
870 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1174 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
871 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1175 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
872 | { |
1176 | { |
873 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1177 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
874 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1178 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
875 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1179 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
876 | x = ( x >> 8 ) | ( x << 8); |
1180 | x = ( x >> 8 ) | ( x << 8); |
877 | |
1181 | |
878 | return x; |
1182 | return x; |
879 | } |
1183 | } |
880 | |
1184 | |
881 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1185 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
882 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1186 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
883 | { |
1187 | { |
884 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1188 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
885 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1189 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
886 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1190 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
887 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1191 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
890 | return x; |
1194 | return x; |
891 | } |
1195 | } |
892 | |
1196 | |
893 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1197 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
894 | /* so for this version we are lazy */ |
1198 | /* so for this version we are lazy */ |
895 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1199 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
896 | ecb_function_ int |
1200 | ecb_function_ ecb_const int |
897 | ecb_popcount64 (uint64_t x) |
1201 | ecb_popcount64 (uint64_t x) |
898 | { |
1202 | { |
899 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1203 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
900 | } |
1204 | } |
901 | |
1205 | |
902 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1206 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
903 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1207 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
904 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1208 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
905 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1209 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
906 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1210 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
907 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1211 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
908 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1212 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
909 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1213 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
910 | |
1214 | |
911 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1215 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
912 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1216 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
913 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1217 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
914 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1218 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
915 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1219 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
916 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1220 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
917 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1221 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
918 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1222 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
919 | |
1223 | |
920 | #if ECB_GCC_VERSION(4,3) |
1224 | #if ECB_CPP |
|
|
1225 | |
|
|
1226 | inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); } |
|
|
1227 | inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); } |
|
|
1228 | inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); } |
|
|
1229 | inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); } |
|
|
1230 | |
|
|
1231 | inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); } |
|
|
1232 | inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); } |
|
|
1233 | inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); } |
|
|
1234 | inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); } |
|
|
1235 | |
|
|
1236 | inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); } |
|
|
1237 | inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); } |
|
|
1238 | inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); } |
|
|
1239 | inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); } |
|
|
1240 | |
|
|
1241 | inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); } |
|
|
1242 | inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); } |
|
|
1243 | inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); } |
|
|
1244 | inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); } |
|
|
1245 | |
|
|
1246 | inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); } |
|
|
1247 | inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); } |
|
|
1248 | inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); } |
|
|
1249 | |
|
|
1250 | inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); } |
|
|
1251 | inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); } |
|
|
1252 | inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); } |
|
|
1253 | inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); } |
|
|
1254 | |
|
|
1255 | inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); } |
|
|
1256 | inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); } |
|
|
1257 | inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); } |
|
|
1258 | inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); } |
|
|
1259 | |
|
|
1260 | #endif |
|
|
1261 | |
|
|
1262 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1263 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1264 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1265 | #else |
921 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1266 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1267 | #endif |
922 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1268 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
923 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1269 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1270 | #elif _MSC_VER |
|
|
1271 | #include <stdlib.h> |
|
|
1272 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1273 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1274 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
924 | #else |
1275 | #else |
925 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1276 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
926 | ecb_function_ uint16_t |
1277 | ecb_function_ ecb_const uint16_t |
927 | ecb_bswap16 (uint16_t x) |
1278 | ecb_bswap16 (uint16_t x) |
928 | { |
1279 | { |
929 | return ecb_rotl16 (x, 8); |
1280 | return ecb_rotl16 (x, 8); |
930 | } |
1281 | } |
931 | |
1282 | |
932 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1283 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
933 | ecb_function_ uint32_t |
1284 | ecb_function_ ecb_const uint32_t |
934 | ecb_bswap32 (uint32_t x) |
1285 | ecb_bswap32 (uint32_t x) |
935 | { |
1286 | { |
936 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1287 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
937 | } |
1288 | } |
938 | |
1289 | |
939 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1290 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
940 | ecb_function_ uint64_t |
1291 | ecb_function_ ecb_const uint64_t |
941 | ecb_bswap64 (uint64_t x) |
1292 | ecb_bswap64 (uint64_t x) |
942 | { |
1293 | { |
943 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1294 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
944 | } |
1295 | } |
945 | #endif |
1296 | #endif |
946 | |
1297 | |
947 | #if ECB_GCC_VERSION(4,5) |
1298 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
948 | #define ecb_unreachable() __builtin_unreachable () |
1299 | #define ecb_unreachable() __builtin_unreachable () |
949 | #else |
1300 | #else |
950 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1301 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
951 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1302 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
952 | ecb_inline void ecb_unreachable (void) { } |
1303 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
953 | #endif |
1304 | #endif |
954 | |
1305 | |
955 | /* try to tell the compiler that some condition is definitely true */ |
1306 | /* try to tell the compiler that some condition is definitely true */ |
956 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1307 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
957 | |
1308 | |
958 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1309 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
959 | ecb_inline unsigned char |
1310 | ecb_inline ecb_const uint32_t |
960 | ecb_byteorder_helper (void) |
1311 | ecb_byteorder_helper (void) |
961 | { |
1312 | { |
962 | /* the union code still generates code under pressure in gcc, */ |
1313 | /* the union code still generates code under pressure in gcc, */ |
963 | /* but less than using pointers, and always seems to */ |
1314 | /* but less than using pointers, and always seems to */ |
964 | /* successfully return a constant. */ |
1315 | /* successfully return a constant. */ |
965 | /* the reason why we have this horrible preprocessor mess */ |
1316 | /* the reason why we have this horrible preprocessor mess */ |
966 | /* is to avoid it in all cases, at least on common architectures */ |
1317 | /* is to avoid it in all cases, at least on common architectures */ |
967 | /* or when using a recent enough gcc version (>= 4.6) */ |
1318 | /* or when using a recent enough gcc version (>= 4.6) */ |
968 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
969 | return 0x44; |
|
|
970 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1319 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1320 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1321 | #define ECB_LITTLE_ENDIAN 1 |
971 | return 0x44; |
1322 | return 0x44332211; |
972 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1323 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1324 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1325 | #define ECB_BIG_ENDIAN 1 |
973 | return 0x11; |
1326 | return 0x11223344; |
974 | #else |
1327 | #else |
975 | union |
1328 | union |
976 | { |
1329 | { |
|
|
1330 | uint8_t c[4]; |
977 | uint32_t i; |
1331 | uint32_t u; |
978 | uint8_t c; |
|
|
979 | } u = { 0x11223344 }; |
1332 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
980 | return u.c; |
1333 | return u.u; |
981 | #endif |
1334 | #endif |
982 | } |
1335 | } |
983 | |
1336 | |
984 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1337 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
985 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1338 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
986 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1339 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
987 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1340 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1341 | |
|
|
1342 | /*****************************************************************************/ |
|
|
1343 | /* unaligned load/store */ |
|
|
1344 | |
|
|
1345 | ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1346 | ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1347 | ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1348 | |
|
|
1349 | ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1350 | ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1351 | ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1352 | |
|
|
1353 | ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1354 | ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1355 | ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1356 | |
|
|
1357 | ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1358 | ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1359 | ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1360 | |
|
|
1361 | ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1362 | ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1363 | ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1364 | |
|
|
1365 | ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1366 | ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1367 | ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1368 | |
|
|
1369 | ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1370 | ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1371 | ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1372 | |
|
|
1373 | ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1374 | ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1375 | ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1376 | |
|
|
1377 | ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); } |
|
|
1378 | ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); } |
|
|
1379 | ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); } |
|
|
1380 | |
|
|
1381 | ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); } |
|
|
1382 | ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); } |
|
|
1383 | ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); } |
|
|
1384 | |
|
|
1385 | #if ECB_CPP |
|
|
1386 | |
|
|
1387 | inline uint8_t ecb_bswap (uint8_t v) { return v; } |
|
|
1388 | inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); } |
|
|
1389 | inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); } |
|
|
1390 | inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); } |
|
|
1391 | |
|
|
1392 | template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1393 | template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1394 | template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; } |
|
|
1395 | template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); } |
|
|
1396 | template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); } |
|
|
1397 | template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1398 | template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1399 | template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1400 | |
|
|
1401 | template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1402 | template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1403 | template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; } |
|
|
1404 | template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); } |
|
|
1405 | template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); } |
|
|
1406 | template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1407 | template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); } |
|
|
1408 | template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); } |
|
|
1409 | |
|
|
1410 | #endif |
|
|
1411 | |
|
|
1412 | /*****************************************************************************/ |
988 | |
1413 | |
989 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1414 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
990 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1415 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
991 | #else |
1416 | #else |
992 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1417 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
993 | #endif |
1418 | #endif |
994 | |
1419 | |
995 | #if __cplusplus |
1420 | #if ECB_CPP |
996 | template<typename T> |
1421 | template<typename T> |
997 | static inline T ecb_div_rd (T val, T div) |
1422 | static inline T ecb_div_rd (T val, T div) |
998 | { |
1423 | { |
999 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1424 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1000 | } |
1425 | } |
… | |
… | |
1017 | } |
1442 | } |
1018 | #else |
1443 | #else |
1019 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1444 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1020 | #endif |
1445 | #endif |
1021 | |
1446 | |
|
|
1447 | /*****************************************************************************/ |
|
|
1448 | |
|
|
1449 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1450 | ecb_function_ ecb_const uint32_t |
|
|
1451 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1452 | { |
|
|
1453 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1454 | int e = (x >> 10) & 0x001f; |
|
|
1455 | unsigned int m = x & 0x03ff; |
|
|
1456 | |
|
|
1457 | if (ecb_expect_false (e == 31)) |
|
|
1458 | /* infinity or NaN */ |
|
|
1459 | e = 255 - (127 - 15); |
|
|
1460 | else if (ecb_expect_false (!e)) |
|
|
1461 | { |
|
|
1462 | if (ecb_expect_true (!m)) |
|
|
1463 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1464 | e = 0 - (127 - 15); |
|
|
1465 | else |
|
|
1466 | { |
|
|
1467 | /* subnormal, renormalise */ |
|
|
1468 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1469 | |
|
|
1470 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1471 | e -= s - 1; |
|
|
1472 | } |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1476 | e += 127 - 15; |
|
|
1477 | |
|
|
1478 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1482 | ecb_function_ ecb_const uint16_t |
|
|
1483 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1484 | { |
|
|
1485 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1486 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1487 | unsigned int m = x & 0x007fffff; |
|
|
1488 | |
|
|
1489 | x &= 0x7fffffff; |
|
|
1490 | |
|
|
1491 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1492 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1493 | { |
|
|
1494 | /* mantissa round-to-even */ |
|
|
1495 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1496 | |
|
|
1497 | /* handle overflow */ |
|
|
1498 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1499 | { |
|
|
1500 | m >>= 1; |
|
|
1501 | e += 1; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1505 | } |
|
|
1506 | |
|
|
1507 | /* handle large numbers and infinity */ |
|
|
1508 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1509 | return s | 0x7c00; |
|
|
1510 | |
|
|
1511 | /* handle zero, subnormals and small numbers */ |
|
|
1512 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1513 | { |
|
|
1514 | /* zero */ |
|
|
1515 | if (ecb_expect_true (!x)) |
|
|
1516 | return s; |
|
|
1517 | |
|
|
1518 | /* handle subnormals */ |
|
|
1519 | |
|
|
1520 | /* too small, will be zero */ |
|
|
1521 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1522 | return s; |
|
|
1523 | |
|
|
1524 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1525 | |
|
|
1526 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1527 | { |
|
|
1528 | unsigned int bits = 14 - e; |
|
|
1529 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1530 | unsigned int even = (m >> bits) & 1; |
|
|
1531 | |
|
|
1532 | /* if this overflows, we will end up with a normalised number */ |
|
|
1533 | m = (m + half + even) >> bits; |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | return s | m; |
|
|
1537 | } |
|
|
1538 | |
|
|
1539 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1540 | m >>= 13; |
|
|
1541 | |
|
|
1542 | return s | 0x7c00 | m | !m; |
|
|
1543 | } |
|
|
1544 | |
1022 | /*******************************************************************************/ |
1545 | /*******************************************************************************/ |
1023 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1546 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1024 | |
1547 | |
1025 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1548 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1026 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1549 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1027 | #if 0 \ |
1550 | #if 0 \ |
1028 | || __i386 || __i386__ \ |
1551 | || __i386 || __i386__ \ |
1029 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1552 | || ECB_GCC_AMD64 \ |
1030 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1553 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1031 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1032 | || defined __s390__ || defined __s390x__ \ |
1554 | || defined __s390__ || defined __s390x__ \ |
1033 | || defined __mips__ \ |
1555 | || defined __mips__ \ |
1034 | || defined __alpha__ \ |
1556 | || defined __alpha__ \ |
1035 | || defined __hppa__ \ |
1557 | || defined __hppa__ \ |
1036 | || defined __ia64__ \ |
1558 | || defined __ia64__ \ |
|
|
1559 | || defined __m68k__ \ |
|
|
1560 | || defined __m88k__ \ |
|
|
1561 | || defined __sh__ \ |
1037 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
1562 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1563 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1564 | || defined __aarch64__ |
1038 | #define ECB_STDFP 1 |
1565 | #define ECB_STDFP 1 |
1039 | #include <string.h> /* for memcpy */ |
|
|
1040 | #else |
1566 | #else |
1041 | #define ECB_STDFP 0 |
1567 | #define ECB_STDFP 0 |
1042 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1043 | #endif |
1568 | #endif |
1044 | |
1569 | |
1045 | #ifndef ECB_NO_LIBM |
1570 | #ifndef ECB_NO_LIBM |
1046 | |
1571 | |
|
|
1572 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1573 | |
|
|
1574 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1575 | #ifdef INFINITY |
|
|
1576 | #define ECB_INFINITY INFINITY |
|
|
1577 | #else |
|
|
1578 | #define ECB_INFINITY HUGE_VAL |
|
|
1579 | #endif |
|
|
1580 | |
|
|
1581 | #ifdef NAN |
|
|
1582 | #define ECB_NAN NAN |
|
|
1583 | #else |
|
|
1584 | #define ECB_NAN ECB_INFINITY |
|
|
1585 | #endif |
|
|
1586 | |
|
|
1587 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1588 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1589 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1590 | #else |
|
|
1591 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1592 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1593 | #endif |
|
|
1594 | |
1047 | /* convert a float to ieee single/binary32 */ |
1595 | /* convert a float to ieee single/binary32 */ |
1048 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1596 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1049 | ecb_function_ uint32_t |
1597 | ecb_function_ ecb_const uint32_t |
1050 | ecb_float_to_binary32 (float x) |
1598 | ecb_float_to_binary32 (float x) |
1051 | { |
1599 | { |
1052 | uint32_t r; |
1600 | uint32_t r; |
1053 | |
1601 | |
1054 | #if ECB_STDFP |
1602 | #if ECB_STDFP |
… | |
… | |
1061 | if (x == 0e0f ) return 0x00000000U; |
1609 | if (x == 0e0f ) return 0x00000000U; |
1062 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1610 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1063 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1611 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1064 | if (x != x ) return 0x7fbfffffU; |
1612 | if (x != x ) return 0x7fbfffffU; |
1065 | |
1613 | |
1066 | m = frexpf (x, &e) * 0x1000000U; |
1614 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1067 | |
1615 | |
1068 | r = m & 0x80000000U; |
1616 | r = m & 0x80000000U; |
1069 | |
1617 | |
1070 | if (r) |
1618 | if (r) |
1071 | m = -m; |
1619 | m = -m; |
… | |
… | |
1083 | |
1631 | |
1084 | return r; |
1632 | return r; |
1085 | } |
1633 | } |
1086 | |
1634 | |
1087 | /* converts an ieee single/binary32 to a float */ |
1635 | /* converts an ieee single/binary32 to a float */ |
1088 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1636 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1089 | ecb_function_ float |
1637 | ecb_function_ ecb_const float |
1090 | ecb_binary32_to_float (uint32_t x) |
1638 | ecb_binary32_to_float (uint32_t x) |
1091 | { |
1639 | { |
1092 | float r; |
1640 | float r; |
1093 | |
1641 | |
1094 | #if ECB_STDFP |
1642 | #if ECB_STDFP |
… | |
… | |
1104 | x |= 0x800000U; |
1652 | x |= 0x800000U; |
1105 | else |
1653 | else |
1106 | e = 1; |
1654 | e = 1; |
1107 | |
1655 | |
1108 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1656 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1109 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1657 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1110 | |
1658 | |
1111 | r = neg ? -r : r; |
1659 | r = neg ? -r : r; |
1112 | #endif |
1660 | #endif |
1113 | |
1661 | |
1114 | return r; |
1662 | return r; |
1115 | } |
1663 | } |
1116 | |
1664 | |
1117 | /* convert a double to ieee double/binary64 */ |
1665 | /* convert a double to ieee double/binary64 */ |
1118 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1666 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1119 | ecb_function_ uint64_t |
1667 | ecb_function_ ecb_const uint64_t |
1120 | ecb_double_to_binary64 (double x) |
1668 | ecb_double_to_binary64 (double x) |
1121 | { |
1669 | { |
1122 | uint64_t r; |
1670 | uint64_t r; |
1123 | |
1671 | |
1124 | #if ECB_STDFP |
1672 | #if ECB_STDFP |
… | |
… | |
1153 | |
1701 | |
1154 | return r; |
1702 | return r; |
1155 | } |
1703 | } |
1156 | |
1704 | |
1157 | /* converts an ieee double/binary64 to a double */ |
1705 | /* converts an ieee double/binary64 to a double */ |
1158 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1706 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1159 | ecb_function_ double |
1707 | ecb_function_ ecb_const double |
1160 | ecb_binary64_to_double (uint64_t x) |
1708 | ecb_binary64_to_double (uint64_t x) |
1161 | { |
1709 | { |
1162 | double r; |
1710 | double r; |
1163 | |
1711 | |
1164 | #if ECB_STDFP |
1712 | #if ECB_STDFP |
… | |
… | |
1182 | #endif |
1730 | #endif |
1183 | |
1731 | |
1184 | return r; |
1732 | return r; |
1185 | } |
1733 | } |
1186 | |
1734 | |
|
|
1735 | /* convert a float to ieee half/binary16 */ |
|
|
1736 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1737 | ecb_function_ ecb_const uint16_t |
|
|
1738 | ecb_float_to_binary16 (float x) |
|
|
1739 | { |
|
|
1740 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1741 | } |
|
|
1742 | |
|
|
1743 | /* convert an ieee half/binary16 to float */ |
|
|
1744 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1745 | ecb_function_ ecb_const float |
|
|
1746 | ecb_binary16_to_float (uint16_t x) |
|
|
1747 | { |
|
|
1748 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1749 | } |
|
|
1750 | |
1187 | #endif |
1751 | #endif |
1188 | |
1752 | |
1189 | #endif |
1753 | #endif |
1190 | |
1754 | |
1191 | /* ECB.H END */ |
1755 | /* ECB.H END */ |
1192 | |
1756 | |
1193 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1757 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1194 | /* if your architecture doesn't need memory fences, e.g. because it is |
1758 | /* if your architecture doesn't need memory fences, e.g. because it is |
1195 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1759 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1196 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1760 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
1197 | * libev, in which cases the memory fences become nops. |
1761 | * libev, in which cases the memory fences become nops. |
1198 | * alternatively, you can remove this #error and link against libpthread, |
1762 | * alternatively, you can remove this #error and link against libpthread, |
1199 | * which will then provide the memory fences. |
1763 | * which will then provide the memory fences. |
1200 | */ |
1764 | */ |
1201 | # error "memory fences not defined for your architecture, please report" |
1765 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1205 | # define ECB_MEMORY_FENCE do { } while (0) |
1769 | # define ECB_MEMORY_FENCE do { } while (0) |
1206 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1770 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1207 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1771 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1208 | #endif |
1772 | #endif |
1209 | |
1773 | |
1210 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1211 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1212 | #define noinline ecb_noinline |
|
|
1213 | |
|
|
1214 | #define inline_size ecb_inline |
1774 | #define inline_size ecb_inline |
1215 | |
1775 | |
1216 | #if EV_FEATURE_CODE |
1776 | #if EV_FEATURE_CODE |
1217 | # define inline_speed ecb_inline |
1777 | # define inline_speed ecb_inline |
1218 | #else |
1778 | #else |
1219 | # define inline_speed static noinline |
1779 | # define inline_speed ecb_noinline static |
1220 | #endif |
1780 | #endif |
|
|
1781 | |
|
|
1782 | /*****************************************************************************/ |
|
|
1783 | /* raw syscall wrappers */ |
|
|
1784 | |
|
|
1785 | #if EV_NEED_SYSCALL |
|
|
1786 | |
|
|
1787 | #include <sys/syscall.h> |
|
|
1788 | |
|
|
1789 | /* |
|
|
1790 | * define some syscall wrappers for common architectures |
|
|
1791 | * this is mostly for nice looks during debugging, not performance. |
|
|
1792 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1793 | * enough for linux aio. |
|
|
1794 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1795 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1796 | */ |
|
|
1797 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1798 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1799 | |
|
|
1800 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1801 | ({ \ |
|
|
1802 | long res; \ |
|
|
1803 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1804 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1805 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1806 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1807 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1808 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1809 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1810 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1811 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1812 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1813 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1814 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1815 | __asm__ __volatile__ ( \ |
|
|
1816 | "syscall\n\t" \ |
|
|
1817 | : "=a" (res) \ |
|
|
1818 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1819 | : "cc", "r11", "cx", "memory"); \ |
|
|
1820 | errno = -res; \ |
|
|
1821 | res; \ |
|
|
1822 | }) |
|
|
1823 | |
|
|
1824 | #endif |
|
|
1825 | |
|
|
1826 | #ifdef ev_syscall |
|
|
1827 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1828 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1829 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1830 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1831 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1832 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1833 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1834 | #else |
|
|
1835 | #define ev_syscall0(nr) syscall (nr) |
|
|
1836 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1837 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1838 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1839 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1840 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1841 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1842 | #endif |
|
|
1843 | |
|
|
1844 | #endif |
|
|
1845 | |
|
|
1846 | /*****************************************************************************/ |
1221 | |
1847 | |
1222 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1848 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1223 | |
1849 | |
1224 | #if EV_MINPRI == EV_MAXPRI |
1850 | #if EV_MINPRI == EV_MAXPRI |
1225 | # define ABSPRI(w) (((W)w), 0) |
1851 | # define ABSPRI(w) (((W)w), 0) |
1226 | #else |
1852 | #else |
1227 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1853 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1228 | #endif |
1854 | #endif |
1229 | |
1855 | |
1230 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1856 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1231 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1232 | |
1857 | |
1233 | typedef ev_watcher *W; |
1858 | typedef ev_watcher *W; |
1234 | typedef ev_watcher_list *WL; |
1859 | typedef ev_watcher_list *WL; |
1235 | typedef ev_watcher_time *WT; |
1860 | typedef ev_watcher_time *WT; |
1236 | |
1861 | |
… | |
… | |
1261 | # include "ev_win32.c" |
1886 | # include "ev_win32.c" |
1262 | #endif |
1887 | #endif |
1263 | |
1888 | |
1264 | /*****************************************************************************/ |
1889 | /*****************************************************************************/ |
1265 | |
1890 | |
|
|
1891 | #if EV_USE_LINUXAIO |
|
|
1892 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1893 | #endif |
|
|
1894 | |
1266 | /* define a suitable floor function (only used by periodics atm) */ |
1895 | /* define a suitable floor function (only used by periodics atm) */ |
1267 | |
1896 | |
1268 | #if EV_USE_FLOOR |
1897 | #if EV_USE_FLOOR |
1269 | # include <math.h> |
1898 | # include <math.h> |
1270 | # define ev_floor(v) floor (v) |
1899 | # define ev_floor(v) floor (v) |
1271 | #else |
1900 | #else |
1272 | |
1901 | |
1273 | #include <float.h> |
1902 | #include <float.h> |
1274 | |
1903 | |
1275 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1904 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1905 | ecb_noinline |
1276 | static ev_tstamp noinline |
1906 | static ev_tstamp |
1277 | ev_floor (ev_tstamp v) |
1907 | ev_floor (ev_tstamp v) |
1278 | { |
1908 | { |
1279 | /* the choice of shift factor is not terribly important */ |
1909 | /* the choice of shift factor is not terribly important */ |
1280 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1910 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1281 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1911 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1282 | #else |
1912 | #else |
1283 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1913 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1284 | #endif |
1914 | #endif |
1285 | |
1915 | |
|
|
1916 | /* special treatment for negative arguments */ |
|
|
1917 | if (ecb_expect_false (v < 0.)) |
|
|
1918 | { |
|
|
1919 | ev_tstamp f = -ev_floor (-v); |
|
|
1920 | |
|
|
1921 | return f - (f == v ? 0 : 1); |
|
|
1922 | } |
|
|
1923 | |
1286 | /* argument too large for an unsigned long? */ |
1924 | /* argument too large for an unsigned long? then reduce it */ |
1287 | if (expect_false (v >= shift)) |
1925 | if (ecb_expect_false (v >= shift)) |
1288 | { |
1926 | { |
1289 | ev_tstamp f; |
1927 | ev_tstamp f; |
1290 | |
1928 | |
1291 | if (v == v - 1.) |
1929 | if (v == v - 1.) |
1292 | return v; /* very large number */ |
1930 | return v; /* very large numbers are assumed to be integer */ |
1293 | |
1931 | |
1294 | f = shift * ev_floor (v * (1. / shift)); |
1932 | f = shift * ev_floor (v * (1. / shift)); |
1295 | return f + ev_floor (v - f); |
1933 | return f + ev_floor (v - f); |
1296 | } |
1934 | } |
1297 | |
1935 | |
1298 | /* special treatment for negative args? */ |
|
|
1299 | if (expect_false (v < 0.)) |
|
|
1300 | { |
|
|
1301 | ev_tstamp f = -ev_floor (-v); |
|
|
1302 | |
|
|
1303 | return f - (f == v ? 0 : 1); |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | /* fits into an unsigned long */ |
1936 | /* fits into an unsigned long */ |
1307 | return (unsigned long)v; |
1937 | return (unsigned long)v; |
1308 | } |
1938 | } |
1309 | |
1939 | |
1310 | #endif |
1940 | #endif |
… | |
… | |
1313 | |
1943 | |
1314 | #ifdef __linux |
1944 | #ifdef __linux |
1315 | # include <sys/utsname.h> |
1945 | # include <sys/utsname.h> |
1316 | #endif |
1946 | #endif |
1317 | |
1947 | |
1318 | static unsigned int noinline ecb_cold |
1948 | ecb_noinline ecb_cold |
|
|
1949 | static unsigned int |
1319 | ev_linux_version (void) |
1950 | ev_linux_version (void) |
1320 | { |
1951 | { |
1321 | #ifdef __linux |
1952 | #ifdef __linux |
1322 | unsigned int v = 0; |
1953 | unsigned int v = 0; |
1323 | struct utsname buf; |
1954 | struct utsname buf; |
… | |
… | |
1352 | } |
1983 | } |
1353 | |
1984 | |
1354 | /*****************************************************************************/ |
1985 | /*****************************************************************************/ |
1355 | |
1986 | |
1356 | #if EV_AVOID_STDIO |
1987 | #if EV_AVOID_STDIO |
1357 | static void noinline ecb_cold |
1988 | ecb_noinline ecb_cold |
|
|
1989 | static void |
1358 | ev_printerr (const char *msg) |
1990 | ev_printerr (const char *msg) |
1359 | { |
1991 | { |
1360 | write (STDERR_FILENO, msg, strlen (msg)); |
1992 | write (STDERR_FILENO, msg, strlen (msg)); |
1361 | } |
1993 | } |
1362 | #endif |
1994 | #endif |
1363 | |
1995 | |
1364 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1996 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1365 | |
1997 | |
1366 | void ecb_cold |
1998 | ecb_cold |
|
|
1999 | void |
1367 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
2000 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1368 | { |
2001 | { |
1369 | syserr_cb = cb; |
2002 | syserr_cb = cb; |
1370 | } |
2003 | } |
1371 | |
2004 | |
1372 | static void noinline ecb_cold |
2005 | ecb_noinline ecb_cold |
|
|
2006 | static void |
1373 | ev_syserr (const char *msg) |
2007 | ev_syserr (const char *msg) |
1374 | { |
2008 | { |
1375 | if (!msg) |
2009 | if (!msg) |
1376 | msg = "(libev) system error"; |
2010 | msg = "(libev) system error"; |
1377 | |
2011 | |
… | |
… | |
1390 | abort (); |
2024 | abort (); |
1391 | } |
2025 | } |
1392 | } |
2026 | } |
1393 | |
2027 | |
1394 | static void * |
2028 | static void * |
1395 | ev_realloc_emul (void *ptr, long size) EV_THROW |
2029 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1396 | { |
2030 | { |
1397 | /* some systems, notably openbsd and darwin, fail to properly |
2031 | /* some systems, notably openbsd and darwin, fail to properly |
1398 | * implement realloc (x, 0) (as required by both ansi c-89 and |
2032 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1399 | * the single unix specification, so work around them here. |
2033 | * the single unix specification, so work around them here. |
1400 | * recently, also (at least) fedora and debian started breaking it, |
2034 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1406 | |
2040 | |
1407 | free (ptr); |
2041 | free (ptr); |
1408 | return 0; |
2042 | return 0; |
1409 | } |
2043 | } |
1410 | |
2044 | |
1411 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
2045 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1412 | |
2046 | |
1413 | void ecb_cold |
2047 | ecb_cold |
|
|
2048 | void |
1414 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
2049 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1415 | { |
2050 | { |
1416 | alloc = cb; |
2051 | alloc = cb; |
1417 | } |
2052 | } |
1418 | |
2053 | |
1419 | inline_speed void * |
2054 | inline_speed void * |
… | |
… | |
1446 | typedef struct |
2081 | typedef struct |
1447 | { |
2082 | { |
1448 | WL head; |
2083 | WL head; |
1449 | unsigned char events; /* the events watched for */ |
2084 | unsigned char events; /* the events watched for */ |
1450 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
2085 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1451 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
2086 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1452 | unsigned char unused; |
2087 | unsigned char eflags; /* flags field for use by backends */ |
1453 | #if EV_USE_EPOLL |
2088 | #if EV_USE_EPOLL |
1454 | unsigned int egen; /* generation counter to counter epoll bugs */ |
2089 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1455 | #endif |
2090 | #endif |
1456 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2091 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1457 | SOCKET handle; |
2092 | SOCKET handle; |
… | |
… | |
1511 | static struct ev_loop default_loop_struct; |
2146 | static struct ev_loop default_loop_struct; |
1512 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
2147 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1513 | |
2148 | |
1514 | #else |
2149 | #else |
1515 | |
2150 | |
1516 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
2151 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1517 | #define VAR(name,decl) static decl; |
2152 | #define VAR(name,decl) static decl; |
1518 | #include "ev_vars.h" |
2153 | #include "ev_vars.h" |
1519 | #undef VAR |
2154 | #undef VAR |
1520 | |
2155 | |
1521 | static int ev_default_loop_ptr; |
2156 | static int ev_default_loop_ptr; |
1522 | |
2157 | |
1523 | #endif |
2158 | #endif |
1524 | |
2159 | |
1525 | #if EV_FEATURE_API |
2160 | #if EV_FEATURE_API |
1526 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2161 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1527 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2162 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1528 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2163 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1529 | #else |
2164 | #else |
1530 | # define EV_RELEASE_CB (void)0 |
2165 | # define EV_RELEASE_CB (void)0 |
1531 | # define EV_ACQUIRE_CB (void)0 |
2166 | # define EV_ACQUIRE_CB (void)0 |
1532 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2167 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1536 | |
2171 | |
1537 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
1538 | |
2173 | |
1539 | #ifndef EV_HAVE_EV_TIME |
2174 | #ifndef EV_HAVE_EV_TIME |
1540 | ev_tstamp |
2175 | ev_tstamp |
1541 | ev_time (void) EV_THROW |
2176 | ev_time (void) EV_NOEXCEPT |
1542 | { |
2177 | { |
1543 | #if EV_USE_REALTIME |
2178 | #if EV_USE_REALTIME |
1544 | if (expect_true (have_realtime)) |
2179 | if (ecb_expect_true (have_realtime)) |
1545 | { |
2180 | { |
1546 | struct timespec ts; |
2181 | struct timespec ts; |
1547 | clock_gettime (CLOCK_REALTIME, &ts); |
2182 | clock_gettime (CLOCK_REALTIME, &ts); |
1548 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2183 | return EV_TS_GET (ts); |
1549 | } |
2184 | } |
1550 | #endif |
2185 | #endif |
1551 | |
2186 | |
|
|
2187 | { |
1552 | struct timeval tv; |
2188 | struct timeval tv; |
1553 | gettimeofday (&tv, 0); |
2189 | gettimeofday (&tv, 0); |
1554 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2190 | return EV_TV_GET (tv); |
|
|
2191 | } |
1555 | } |
2192 | } |
1556 | #endif |
2193 | #endif |
1557 | |
2194 | |
1558 | inline_size ev_tstamp |
2195 | inline_size ev_tstamp |
1559 | get_clock (void) |
2196 | get_clock (void) |
1560 | { |
2197 | { |
1561 | #if EV_USE_MONOTONIC |
2198 | #if EV_USE_MONOTONIC |
1562 | if (expect_true (have_monotonic)) |
2199 | if (ecb_expect_true (have_monotonic)) |
1563 | { |
2200 | { |
1564 | struct timespec ts; |
2201 | struct timespec ts; |
1565 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2202 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2203 | return EV_TS_GET (ts); |
1567 | } |
2204 | } |
1568 | #endif |
2205 | #endif |
1569 | |
2206 | |
1570 | return ev_time (); |
2207 | return ev_time (); |
1571 | } |
2208 | } |
1572 | |
2209 | |
1573 | #if EV_MULTIPLICITY |
2210 | #if EV_MULTIPLICITY |
1574 | ev_tstamp |
2211 | ev_tstamp |
1575 | ev_now (EV_P) EV_THROW |
2212 | ev_now (EV_P) EV_NOEXCEPT |
1576 | { |
2213 | { |
1577 | return ev_rt_now; |
2214 | return ev_rt_now; |
1578 | } |
2215 | } |
1579 | #endif |
2216 | #endif |
1580 | |
2217 | |
1581 | void |
2218 | void |
1582 | ev_sleep (ev_tstamp delay) EV_THROW |
2219 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1583 | { |
2220 | { |
1584 | if (delay > 0.) |
2221 | if (delay > EV_TS_CONST (0.)) |
1585 | { |
2222 | { |
1586 | #if EV_USE_NANOSLEEP |
2223 | #if EV_USE_NANOSLEEP |
1587 | struct timespec ts; |
2224 | struct timespec ts; |
1588 | |
2225 | |
1589 | EV_TS_SET (ts, delay); |
2226 | EV_TS_SET (ts, delay); |
1590 | nanosleep (&ts, 0); |
2227 | nanosleep (&ts, 0); |
1591 | #elif defined _WIN32 |
2228 | #elif defined _WIN32 |
|
|
2229 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2230 | /* compared to select (µs) or nanosleep (ns) */ |
1592 | Sleep ((unsigned long)(delay * 1e3)); |
2231 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1593 | #else |
2232 | #else |
1594 | struct timeval tv; |
2233 | struct timeval tv; |
1595 | |
2234 | |
1596 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2235 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1597 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2236 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1627 | } |
2266 | } |
1628 | |
2267 | |
1629 | return ncur; |
2268 | return ncur; |
1630 | } |
2269 | } |
1631 | |
2270 | |
1632 | static void * noinline ecb_cold |
2271 | ecb_noinline ecb_cold |
|
|
2272 | static void * |
1633 | array_realloc (int elem, void *base, int *cur, int cnt) |
2273 | array_realloc (int elem, void *base, int *cur, int cnt) |
1634 | { |
2274 | { |
1635 | *cur = array_nextsize (elem, *cur, cnt); |
2275 | *cur = array_nextsize (elem, *cur, cnt); |
1636 | return ev_realloc (base, elem * *cur); |
2276 | return ev_realloc (base, elem * *cur); |
1637 | } |
2277 | } |
1638 | |
2278 | |
|
|
2279 | #define array_needsize_noinit(base,offset,count) |
|
|
2280 | |
1639 | #define array_init_zero(base,count) \ |
2281 | #define array_needsize_zerofill(base,offset,count) \ |
1640 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2282 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1641 | |
2283 | |
1642 | #define array_needsize(type,base,cur,cnt,init) \ |
2284 | #define array_needsize(type,base,cur,cnt,init) \ |
1643 | if (expect_false ((cnt) > (cur))) \ |
2285 | if (ecb_expect_false ((cnt) > (cur))) \ |
1644 | { \ |
2286 | { \ |
1645 | int ecb_unused ocur_ = (cur); \ |
2287 | ecb_unused int ocur_ = (cur); \ |
1646 | (base) = (type *)array_realloc \ |
2288 | (base) = (type *)array_realloc \ |
1647 | (sizeof (type), (base), &(cur), (cnt)); \ |
2289 | (sizeof (type), (base), &(cur), (cnt)); \ |
1648 | init ((base) + (ocur_), (cur) - ocur_); \ |
2290 | init ((base), ocur_, ((cur) - ocur_)); \ |
1649 | } |
2291 | } |
1650 | |
2292 | |
1651 | #if 0 |
2293 | #if 0 |
1652 | #define array_slim(type,stem) \ |
2294 | #define array_slim(type,stem) \ |
1653 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2295 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1662 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2304 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1663 | |
2305 | |
1664 | /*****************************************************************************/ |
2306 | /*****************************************************************************/ |
1665 | |
2307 | |
1666 | /* dummy callback for pending events */ |
2308 | /* dummy callback for pending events */ |
1667 | static void noinline |
2309 | ecb_noinline |
|
|
2310 | static void |
1668 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2311 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1669 | { |
2312 | { |
1670 | } |
2313 | } |
1671 | |
2314 | |
1672 | void noinline |
2315 | ecb_noinline |
|
|
2316 | void |
1673 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2317 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1674 | { |
2318 | { |
1675 | W w_ = (W)w; |
2319 | W w_ = (W)w; |
1676 | int pri = ABSPRI (w_); |
2320 | int pri = ABSPRI (w_); |
1677 | |
2321 | |
1678 | if (expect_false (w_->pending)) |
2322 | if (ecb_expect_false (w_->pending)) |
1679 | pendings [pri][w_->pending - 1].events |= revents; |
2323 | pendings [pri][w_->pending - 1].events |= revents; |
1680 | else |
2324 | else |
1681 | { |
2325 | { |
1682 | w_->pending = ++pendingcnt [pri]; |
2326 | w_->pending = ++pendingcnt [pri]; |
1683 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2327 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1684 | pendings [pri][w_->pending - 1].w = w_; |
2328 | pendings [pri][w_->pending - 1].w = w_; |
1685 | pendings [pri][w_->pending - 1].events = revents; |
2329 | pendings [pri][w_->pending - 1].events = revents; |
1686 | } |
2330 | } |
1687 | |
2331 | |
1688 | pendingpri = NUMPRI - 1; |
2332 | pendingpri = NUMPRI - 1; |
1689 | } |
2333 | } |
1690 | |
2334 | |
1691 | inline_speed void |
2335 | inline_speed void |
1692 | feed_reverse (EV_P_ W w) |
2336 | feed_reverse (EV_P_ W w) |
1693 | { |
2337 | { |
1694 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2338 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1695 | rfeeds [rfeedcnt++] = w; |
2339 | rfeeds [rfeedcnt++] = w; |
1696 | } |
2340 | } |
1697 | |
2341 | |
1698 | inline_size void |
2342 | inline_size void |
1699 | feed_reverse_done (EV_P_ int revents) |
2343 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1734 | inline_speed void |
2378 | inline_speed void |
1735 | fd_event (EV_P_ int fd, int revents) |
2379 | fd_event (EV_P_ int fd, int revents) |
1736 | { |
2380 | { |
1737 | ANFD *anfd = anfds + fd; |
2381 | ANFD *anfd = anfds + fd; |
1738 | |
2382 | |
1739 | if (expect_true (!anfd->reify)) |
2383 | if (ecb_expect_true (!anfd->reify)) |
1740 | fd_event_nocheck (EV_A_ fd, revents); |
2384 | fd_event_nocheck (EV_A_ fd, revents); |
1741 | } |
2385 | } |
1742 | |
2386 | |
1743 | void |
2387 | void |
1744 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2388 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1745 | { |
2389 | { |
1746 | if (fd >= 0 && fd < anfdmax) |
2390 | if (fd >= 0 && fd < anfdmax) |
1747 | fd_event_nocheck (EV_A_ fd, revents); |
2391 | fd_event_nocheck (EV_A_ fd, revents); |
1748 | } |
2392 | } |
1749 | |
2393 | |
… | |
… | |
1752 | inline_size void |
2396 | inline_size void |
1753 | fd_reify (EV_P) |
2397 | fd_reify (EV_P) |
1754 | { |
2398 | { |
1755 | int i; |
2399 | int i; |
1756 | |
2400 | |
|
|
2401 | /* most backends do not modify the fdchanges list in backend_modify. |
|
|
2402 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2403 | * to handle events in backend_modify, causing fdchanges to be amended, |
|
|
2404 | * which could result in an endless loop. |
|
|
2405 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2406 | * during fd_reify. that means that for those backends, fdchangecnt |
|
|
2407 | * might be non-zero during poll, which must cause them to not block. |
|
|
2408 | * to not put too much of a burden on other backends, this detail |
|
|
2409 | * needs to be handled in the backend. |
|
|
2410 | */ |
|
|
2411 | int changecnt = fdchangecnt; |
|
|
2412 | |
1757 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2413 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1758 | for (i = 0; i < fdchangecnt; ++i) |
2414 | for (i = 0; i < changecnt; ++i) |
1759 | { |
2415 | { |
1760 | int fd = fdchanges [i]; |
2416 | int fd = fdchanges [i]; |
1761 | ANFD *anfd = anfds + fd; |
2417 | ANFD *anfd = anfds + fd; |
1762 | |
2418 | |
1763 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2419 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
1777 | } |
2433 | } |
1778 | } |
2434 | } |
1779 | } |
2435 | } |
1780 | #endif |
2436 | #endif |
1781 | |
2437 | |
1782 | for (i = 0; i < fdchangecnt; ++i) |
2438 | for (i = 0; i < changecnt; ++i) |
1783 | { |
2439 | { |
1784 | int fd = fdchanges [i]; |
2440 | int fd = fdchanges [i]; |
1785 | ANFD *anfd = anfds + fd; |
2441 | ANFD *anfd = anfds + fd; |
1786 | ev_io *w; |
2442 | ev_io *w; |
1787 | |
2443 | |
1788 | unsigned char o_events = anfd->events; |
2444 | unsigned char o_events = anfd->events; |
1789 | unsigned char o_reify = anfd->reify; |
2445 | unsigned char o_reify = anfd->reify; |
1790 | |
2446 | |
1791 | anfd->reify = 0; |
2447 | anfd->reify = 0; |
1792 | |
2448 | |
1793 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2449 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1794 | { |
2450 | { |
1795 | anfd->events = 0; |
2451 | anfd->events = 0; |
1796 | |
2452 | |
1797 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2453 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1798 | anfd->events |= (unsigned char)w->events; |
2454 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1803 | |
2459 | |
1804 | if (o_reify & EV__IOFDSET) |
2460 | if (o_reify & EV__IOFDSET) |
1805 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2461 | backend_modify (EV_A_ fd, o_events, anfd->events); |
1806 | } |
2462 | } |
1807 | |
2463 | |
|
|
2464 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2465 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2466 | * front and hope the backend handles this case. |
|
|
2467 | */ |
|
|
2468 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2469 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2470 | |
1808 | fdchangecnt = 0; |
2471 | fdchangecnt -= changecnt; |
1809 | } |
2472 | } |
1810 | |
2473 | |
1811 | /* something about the given fd changed */ |
2474 | /* something about the given fd changed */ |
1812 | inline_size void |
2475 | inline_size |
|
|
2476 | void |
1813 | fd_change (EV_P_ int fd, int flags) |
2477 | fd_change (EV_P_ int fd, int flags) |
1814 | { |
2478 | { |
1815 | unsigned char reify = anfds [fd].reify; |
2479 | unsigned char reify = anfds [fd].reify; |
1816 | anfds [fd].reify |= flags; |
2480 | anfds [fd].reify = reify | flags; |
1817 | |
2481 | |
1818 | if (expect_true (!reify)) |
2482 | if (ecb_expect_true (!reify)) |
1819 | { |
2483 | { |
1820 | ++fdchangecnt; |
2484 | ++fdchangecnt; |
1821 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2485 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1822 | fdchanges [fdchangecnt - 1] = fd; |
2486 | fdchanges [fdchangecnt - 1] = fd; |
1823 | } |
2487 | } |
1824 | } |
2488 | } |
1825 | |
2489 | |
1826 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2490 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1827 | inline_speed void ecb_cold |
2491 | inline_speed ecb_cold void |
1828 | fd_kill (EV_P_ int fd) |
2492 | fd_kill (EV_P_ int fd) |
1829 | { |
2493 | { |
1830 | ev_io *w; |
2494 | ev_io *w; |
1831 | |
2495 | |
1832 | while ((w = (ev_io *)anfds [fd].head)) |
2496 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1835 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2499 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1836 | } |
2500 | } |
1837 | } |
2501 | } |
1838 | |
2502 | |
1839 | /* check whether the given fd is actually valid, for error recovery */ |
2503 | /* check whether the given fd is actually valid, for error recovery */ |
1840 | inline_size int ecb_cold |
2504 | inline_size ecb_cold int |
1841 | fd_valid (int fd) |
2505 | fd_valid (int fd) |
1842 | { |
2506 | { |
1843 | #ifdef _WIN32 |
2507 | #ifdef _WIN32 |
1844 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2508 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1845 | #else |
2509 | #else |
1846 | return fcntl (fd, F_GETFD) != -1; |
2510 | return fcntl (fd, F_GETFD) != -1; |
1847 | #endif |
2511 | #endif |
1848 | } |
2512 | } |
1849 | |
2513 | |
1850 | /* called on EBADF to verify fds */ |
2514 | /* called on EBADF to verify fds */ |
1851 | static void noinline ecb_cold |
2515 | ecb_noinline ecb_cold |
|
|
2516 | static void |
1852 | fd_ebadf (EV_P) |
2517 | fd_ebadf (EV_P) |
1853 | { |
2518 | { |
1854 | int fd; |
2519 | int fd; |
1855 | |
2520 | |
1856 | for (fd = 0; fd < anfdmax; ++fd) |
2521 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1858 | if (!fd_valid (fd) && errno == EBADF) |
2523 | if (!fd_valid (fd) && errno == EBADF) |
1859 | fd_kill (EV_A_ fd); |
2524 | fd_kill (EV_A_ fd); |
1860 | } |
2525 | } |
1861 | |
2526 | |
1862 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2527 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1863 | static void noinline ecb_cold |
2528 | ecb_noinline ecb_cold |
|
|
2529 | static void |
1864 | fd_enomem (EV_P) |
2530 | fd_enomem (EV_P) |
1865 | { |
2531 | { |
1866 | int fd; |
2532 | int fd; |
1867 | |
2533 | |
1868 | for (fd = anfdmax; fd--; ) |
2534 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1872 | break; |
2538 | break; |
1873 | } |
2539 | } |
1874 | } |
2540 | } |
1875 | |
2541 | |
1876 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2542 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1877 | static void noinline |
2543 | ecb_noinline |
|
|
2544 | static void |
1878 | fd_rearm_all (EV_P) |
2545 | fd_rearm_all (EV_P) |
1879 | { |
2546 | { |
1880 | int fd; |
2547 | int fd; |
1881 | |
2548 | |
1882 | for (fd = 0; fd < anfdmax; ++fd) |
2549 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1935 | ev_tstamp minat; |
2602 | ev_tstamp minat; |
1936 | ANHE *minpos; |
2603 | ANHE *minpos; |
1937 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2604 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1938 | |
2605 | |
1939 | /* find minimum child */ |
2606 | /* find minimum child */ |
1940 | if (expect_true (pos + DHEAP - 1 < E)) |
2607 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1941 | { |
2608 | { |
1942 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2609 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1943 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2610 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1944 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2611 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1945 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2612 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1946 | } |
2613 | } |
1947 | else if (pos < E) |
2614 | else if (pos < E) |
1948 | { |
2615 | { |
1949 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2616 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1950 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2617 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1951 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2618 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1952 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2619 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1953 | } |
2620 | } |
1954 | else |
2621 | else |
1955 | break; |
2622 | break; |
1956 | |
2623 | |
1957 | if (ANHE_at (he) <= minat) |
2624 | if (ANHE_at (he) <= minat) |
… | |
… | |
1965 | |
2632 | |
1966 | heap [k] = he; |
2633 | heap [k] = he; |
1967 | ev_active (ANHE_w (he)) = k; |
2634 | ev_active (ANHE_w (he)) = k; |
1968 | } |
2635 | } |
1969 | |
2636 | |
1970 | #else /* 4HEAP */ |
2637 | #else /* not 4HEAP */ |
1971 | |
2638 | |
1972 | #define HEAP0 1 |
2639 | #define HEAP0 1 |
1973 | #define HPARENT(k) ((k) >> 1) |
2640 | #define HPARENT(k) ((k) >> 1) |
1974 | #define UPHEAP_DONE(p,k) (!(p)) |
2641 | #define UPHEAP_DONE(p,k) (!(p)) |
1975 | |
2642 | |
… | |
… | |
2047 | upheap (heap, i + HEAP0); |
2714 | upheap (heap, i + HEAP0); |
2048 | } |
2715 | } |
2049 | |
2716 | |
2050 | /*****************************************************************************/ |
2717 | /*****************************************************************************/ |
2051 | |
2718 | |
2052 | /* associate signal watchers to a signal signal */ |
2719 | /* associate signal watchers to a signal */ |
2053 | typedef struct |
2720 | typedef struct |
2054 | { |
2721 | { |
2055 | EV_ATOMIC_T pending; |
2722 | EV_ATOMIC_T pending; |
2056 | #if EV_MULTIPLICITY |
2723 | #if EV_MULTIPLICITY |
2057 | EV_P; |
2724 | EV_P; |
… | |
… | |
2063 | |
2730 | |
2064 | /*****************************************************************************/ |
2731 | /*****************************************************************************/ |
2065 | |
2732 | |
2066 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2733 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2067 | |
2734 | |
2068 | static void noinline ecb_cold |
2735 | ecb_noinline ecb_cold |
|
|
2736 | static void |
2069 | evpipe_init (EV_P) |
2737 | evpipe_init (EV_P) |
2070 | { |
2738 | { |
2071 | if (!ev_is_active (&pipe_w)) |
2739 | if (!ev_is_active (&pipe_w)) |
2072 | { |
2740 | { |
2073 | int fds [2]; |
2741 | int fds [2]; |
… | |
… | |
2084 | while (pipe (fds)) |
2752 | while (pipe (fds)) |
2085 | ev_syserr ("(libev) error creating signal/async pipe"); |
2753 | ev_syserr ("(libev) error creating signal/async pipe"); |
2086 | |
2754 | |
2087 | fd_intern (fds [0]); |
2755 | fd_intern (fds [0]); |
2088 | } |
2756 | } |
2089 | |
|
|
2090 | fd_intern (fds [1]); |
|
|
2091 | |
2757 | |
2092 | evpipe [0] = fds [0]; |
2758 | evpipe [0] = fds [0]; |
2093 | |
2759 | |
2094 | if (evpipe [1] < 0) |
2760 | if (evpipe [1] < 0) |
2095 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2761 | evpipe [1] = fds [1]; /* first call, set write fd */ |
… | |
… | |
2102 | |
2768 | |
2103 | dup2 (fds [1], evpipe [1]); |
2769 | dup2 (fds [1], evpipe [1]); |
2104 | close (fds [1]); |
2770 | close (fds [1]); |
2105 | } |
2771 | } |
2106 | |
2772 | |
|
|
2773 | fd_intern (evpipe [1]); |
|
|
2774 | |
2107 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2775 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2108 | ev_io_start (EV_A_ &pipe_w); |
2776 | ev_io_start (EV_A_ &pipe_w); |
2109 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2777 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2110 | } |
2778 | } |
2111 | } |
2779 | } |
… | |
… | |
2113 | inline_speed void |
2781 | inline_speed void |
2114 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2782 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2115 | { |
2783 | { |
2116 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2784 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2117 | |
2785 | |
2118 | if (expect_true (*flag)) |
2786 | if (ecb_expect_true (*flag)) |
2119 | return; |
2787 | return; |
2120 | |
2788 | |
2121 | *flag = 1; |
2789 | *flag = 1; |
2122 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2790 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2123 | |
2791 | |
… | |
… | |
2144 | #endif |
2812 | #endif |
2145 | { |
2813 | { |
2146 | #ifdef _WIN32 |
2814 | #ifdef _WIN32 |
2147 | WSABUF buf; |
2815 | WSABUF buf; |
2148 | DWORD sent; |
2816 | DWORD sent; |
2149 | buf.buf = &buf; |
2817 | buf.buf = (char *)&buf; |
2150 | buf.len = 1; |
2818 | buf.len = 1; |
2151 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2819 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2152 | #else |
2820 | #else |
2153 | write (evpipe [1], &(evpipe [1]), 1); |
2821 | write (evpipe [1], &(evpipe [1]), 1); |
2154 | #endif |
2822 | #endif |
… | |
… | |
2200 | sig_pending = 0; |
2868 | sig_pending = 0; |
2201 | |
2869 | |
2202 | ECB_MEMORY_FENCE; |
2870 | ECB_MEMORY_FENCE; |
2203 | |
2871 | |
2204 | for (i = EV_NSIG - 1; i--; ) |
2872 | for (i = EV_NSIG - 1; i--; ) |
2205 | if (expect_false (signals [i].pending)) |
2873 | if (ecb_expect_false (signals [i].pending)) |
2206 | ev_feed_signal_event (EV_A_ i + 1); |
2874 | ev_feed_signal_event (EV_A_ i + 1); |
2207 | } |
2875 | } |
2208 | #endif |
2876 | #endif |
2209 | |
2877 | |
2210 | #if EV_ASYNC_ENABLE |
2878 | #if EV_ASYNC_ENABLE |
… | |
… | |
2226 | } |
2894 | } |
2227 | |
2895 | |
2228 | /*****************************************************************************/ |
2896 | /*****************************************************************************/ |
2229 | |
2897 | |
2230 | void |
2898 | void |
2231 | ev_feed_signal (int signum) EV_THROW |
2899 | ev_feed_signal (int signum) EV_NOEXCEPT |
2232 | { |
2900 | { |
2233 | #if EV_MULTIPLICITY |
2901 | #if EV_MULTIPLICITY |
|
|
2902 | EV_P; |
2234 | ECB_MEMORY_FENCE_ACQUIRE; |
2903 | ECB_MEMORY_FENCE_ACQUIRE; |
2235 | EV_P = signals [signum - 1].loop; |
2904 | EV_A = signals [signum - 1].loop; |
2236 | |
2905 | |
2237 | if (!EV_A) |
2906 | if (!EV_A) |
2238 | return; |
2907 | return; |
2239 | #endif |
2908 | #endif |
2240 | |
2909 | |
… | |
… | |
2250 | #endif |
2919 | #endif |
2251 | |
2920 | |
2252 | ev_feed_signal (signum); |
2921 | ev_feed_signal (signum); |
2253 | } |
2922 | } |
2254 | |
2923 | |
2255 | void noinline |
2924 | ecb_noinline |
|
|
2925 | void |
2256 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2926 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2257 | { |
2927 | { |
2258 | WL w; |
2928 | WL w; |
2259 | |
2929 | |
2260 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2930 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2261 | return; |
2931 | return; |
2262 | |
2932 | |
2263 | --signum; |
2933 | --signum; |
2264 | |
2934 | |
2265 | #if EV_MULTIPLICITY |
2935 | #if EV_MULTIPLICITY |
2266 | /* it is permissible to try to feed a signal to the wrong loop */ |
2936 | /* it is permissible to try to feed a signal to the wrong loop */ |
2267 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2937 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2268 | |
2938 | |
2269 | if (expect_false (signals [signum].loop != EV_A)) |
2939 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2270 | return; |
2940 | return; |
2271 | #endif |
2941 | #endif |
2272 | |
2942 | |
2273 | signals [signum].pending = 0; |
2943 | signals [signum].pending = 0; |
2274 | ECB_MEMORY_FENCE_RELEASE; |
2944 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2358 | |
3028 | |
2359 | #endif |
3029 | #endif |
2360 | |
3030 | |
2361 | /*****************************************************************************/ |
3031 | /*****************************************************************************/ |
2362 | |
3032 | |
|
|
3033 | #if EV_USE_TIMERFD |
|
|
3034 | |
|
|
3035 | static void periodics_reschedule (EV_P); |
|
|
3036 | |
|
|
3037 | static void |
|
|
3038 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
3039 | { |
|
|
3040 | struct itimerspec its = { 0 }; |
|
|
3041 | |
|
|
3042 | its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2; |
|
|
3043 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
3044 | |
|
|
3045 | ev_rt_now = ev_time (); |
|
|
3046 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
3047 | /* but maybe in the future we want the full treatment. */ |
|
|
3048 | /* |
|
|
3049 | now_floor = EV_TS_CONST (0.); |
|
|
3050 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
3051 | */ |
|
|
3052 | #if EV_PERIODIC_ENABLE |
|
|
3053 | periodics_reschedule (EV_A); |
|
|
3054 | #endif |
|
|
3055 | } |
|
|
3056 | |
|
|
3057 | ecb_noinline ecb_cold |
|
|
3058 | static void |
|
|
3059 | evtimerfd_init (EV_P) |
|
|
3060 | { |
|
|
3061 | if (!ev_is_active (&timerfd_w)) |
|
|
3062 | { |
|
|
3063 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
3064 | |
|
|
3065 | if (timerfd >= 0) |
|
|
3066 | { |
|
|
3067 | fd_intern (timerfd); /* just to be sure */ |
|
|
3068 | |
|
|
3069 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
3070 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
3071 | ev_io_start (EV_A_ &timerfd_w); |
|
|
3072 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
3073 | |
|
|
3074 | /* (re-) arm timer */ |
|
|
3075 | timerfdcb (EV_A_ 0, 0); |
|
|
3076 | } |
|
|
3077 | } |
|
|
3078 | } |
|
|
3079 | |
|
|
3080 | #endif |
|
|
3081 | |
|
|
3082 | /*****************************************************************************/ |
|
|
3083 | |
2363 | #if EV_USE_IOCP |
3084 | #if EV_USE_IOCP |
2364 | # include "ev_iocp.c" |
3085 | # include "ev_iocp.c" |
2365 | #endif |
3086 | #endif |
2366 | #if EV_USE_PORT |
3087 | #if EV_USE_PORT |
2367 | # include "ev_port.c" |
3088 | # include "ev_port.c" |
… | |
… | |
2370 | # include "ev_kqueue.c" |
3091 | # include "ev_kqueue.c" |
2371 | #endif |
3092 | #endif |
2372 | #if EV_USE_EPOLL |
3093 | #if EV_USE_EPOLL |
2373 | # include "ev_epoll.c" |
3094 | # include "ev_epoll.c" |
2374 | #endif |
3095 | #endif |
|
|
3096 | #if EV_USE_LINUXAIO |
|
|
3097 | # include "ev_linuxaio.c" |
|
|
3098 | #endif |
|
|
3099 | #if EV_USE_IOURING |
|
|
3100 | # include "ev_iouring.c" |
|
|
3101 | #endif |
2375 | #if EV_USE_POLL |
3102 | #if EV_USE_POLL |
2376 | # include "ev_poll.c" |
3103 | # include "ev_poll.c" |
2377 | #endif |
3104 | #endif |
2378 | #if EV_USE_SELECT |
3105 | #if EV_USE_SELECT |
2379 | # include "ev_select.c" |
3106 | # include "ev_select.c" |
2380 | #endif |
3107 | #endif |
2381 | |
3108 | |
2382 | int ecb_cold |
3109 | ecb_cold int |
2383 | ev_version_major (void) EV_THROW |
3110 | ev_version_major (void) EV_NOEXCEPT |
2384 | { |
3111 | { |
2385 | return EV_VERSION_MAJOR; |
3112 | return EV_VERSION_MAJOR; |
2386 | } |
3113 | } |
2387 | |
3114 | |
2388 | int ecb_cold |
3115 | ecb_cold int |
2389 | ev_version_minor (void) EV_THROW |
3116 | ev_version_minor (void) EV_NOEXCEPT |
2390 | { |
3117 | { |
2391 | return EV_VERSION_MINOR; |
3118 | return EV_VERSION_MINOR; |
2392 | } |
3119 | } |
2393 | |
3120 | |
2394 | /* return true if we are running with elevated privileges and should ignore env variables */ |
3121 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2395 | int inline_size ecb_cold |
3122 | inline_size ecb_cold int |
2396 | enable_secure (void) |
3123 | enable_secure (void) |
2397 | { |
3124 | { |
2398 | #ifdef _WIN32 |
3125 | #ifdef _WIN32 |
2399 | return 0; |
3126 | return 0; |
2400 | #else |
3127 | #else |
2401 | return getuid () != geteuid () |
3128 | return getuid () != geteuid () |
2402 | || getgid () != getegid (); |
3129 | || getgid () != getegid (); |
2403 | #endif |
3130 | #endif |
2404 | } |
3131 | } |
2405 | |
3132 | |
2406 | unsigned int ecb_cold |
3133 | ecb_cold |
|
|
3134 | unsigned int |
2407 | ev_supported_backends (void) EV_THROW |
3135 | ev_supported_backends (void) EV_NOEXCEPT |
2408 | { |
3136 | { |
2409 | unsigned int flags = 0; |
3137 | unsigned int flags = 0; |
2410 | |
3138 | |
2411 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3139 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2412 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3140 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2413 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3141 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2414 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3142 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
2415 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3143 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
2416 | |
3144 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3145 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3146 | |
2417 | return flags; |
3147 | return flags; |
2418 | } |
3148 | } |
2419 | |
3149 | |
2420 | unsigned int ecb_cold |
3150 | ecb_cold |
|
|
3151 | unsigned int |
2421 | ev_recommended_backends (void) EV_THROW |
3152 | ev_recommended_backends (void) EV_NOEXCEPT |
2422 | { |
3153 | { |
2423 | unsigned int flags = ev_supported_backends (); |
3154 | unsigned int flags = ev_supported_backends (); |
2424 | |
3155 | |
2425 | #ifndef __NetBSD__ |
3156 | #ifndef __NetBSD__ |
2426 | /* kqueue is borked on everything but netbsd apparently */ |
3157 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2434 | #endif |
3165 | #endif |
2435 | #ifdef __FreeBSD__ |
3166 | #ifdef __FreeBSD__ |
2436 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3167 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2437 | #endif |
3168 | #endif |
2438 | |
3169 | |
|
|
3170 | /* TODO: linuxaio is very experimental */ |
|
|
3171 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3172 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3173 | #endif |
|
|
3174 | /* TODO: iouring is super experimental */ |
|
|
3175 | #if !EV_RECOMMEND_IOURING |
|
|
3176 | flags &= ~EVBACKEND_IOURING; |
|
|
3177 | #endif |
|
|
3178 | |
2439 | return flags; |
3179 | return flags; |
2440 | } |
3180 | } |
2441 | |
3181 | |
2442 | unsigned int ecb_cold |
3182 | ecb_cold |
|
|
3183 | unsigned int |
2443 | ev_embeddable_backends (void) EV_THROW |
3184 | ev_embeddable_backends (void) EV_NOEXCEPT |
2444 | { |
3185 | { |
2445 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3186 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
2446 | |
3187 | |
2447 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3188 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2448 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3189 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2449 | flags &= ~EVBACKEND_EPOLL; |
3190 | flags &= ~EVBACKEND_EPOLL; |
2450 | |
3191 | |
|
|
3192 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3193 | |
2451 | return flags; |
3194 | return flags; |
2452 | } |
3195 | } |
2453 | |
3196 | |
2454 | unsigned int |
3197 | unsigned int |
2455 | ev_backend (EV_P) EV_THROW |
3198 | ev_backend (EV_P) EV_NOEXCEPT |
2456 | { |
3199 | { |
2457 | return backend; |
3200 | return backend; |
2458 | } |
3201 | } |
2459 | |
3202 | |
2460 | #if EV_FEATURE_API |
3203 | #if EV_FEATURE_API |
2461 | unsigned int |
3204 | unsigned int |
2462 | ev_iteration (EV_P) EV_THROW |
3205 | ev_iteration (EV_P) EV_NOEXCEPT |
2463 | { |
3206 | { |
2464 | return loop_count; |
3207 | return loop_count; |
2465 | } |
3208 | } |
2466 | |
3209 | |
2467 | unsigned int |
3210 | unsigned int |
2468 | ev_depth (EV_P) EV_THROW |
3211 | ev_depth (EV_P) EV_NOEXCEPT |
2469 | { |
3212 | { |
2470 | return loop_depth; |
3213 | return loop_depth; |
2471 | } |
3214 | } |
2472 | |
3215 | |
2473 | void |
3216 | void |
2474 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
3217 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2475 | { |
3218 | { |
2476 | io_blocktime = interval; |
3219 | io_blocktime = interval; |
2477 | } |
3220 | } |
2478 | |
3221 | |
2479 | void |
3222 | void |
2480 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
3223 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2481 | { |
3224 | { |
2482 | timeout_blocktime = interval; |
3225 | timeout_blocktime = interval; |
2483 | } |
3226 | } |
2484 | |
3227 | |
2485 | void |
3228 | void |
2486 | ev_set_userdata (EV_P_ void *data) EV_THROW |
3229 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2487 | { |
3230 | { |
2488 | userdata = data; |
3231 | userdata = data; |
2489 | } |
3232 | } |
2490 | |
3233 | |
2491 | void * |
3234 | void * |
2492 | ev_userdata (EV_P) EV_THROW |
3235 | ev_userdata (EV_P) EV_NOEXCEPT |
2493 | { |
3236 | { |
2494 | return userdata; |
3237 | return userdata; |
2495 | } |
3238 | } |
2496 | |
3239 | |
2497 | void |
3240 | void |
2498 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
3241 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2499 | { |
3242 | { |
2500 | invoke_cb = invoke_pending_cb; |
3243 | invoke_cb = invoke_pending_cb; |
2501 | } |
3244 | } |
2502 | |
3245 | |
2503 | void |
3246 | void |
2504 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
3247 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2505 | { |
3248 | { |
2506 | release_cb = release; |
3249 | release_cb = release; |
2507 | acquire_cb = acquire; |
3250 | acquire_cb = acquire; |
2508 | } |
3251 | } |
2509 | #endif |
3252 | #endif |
2510 | |
3253 | |
2511 | /* initialise a loop structure, must be zero-initialised */ |
3254 | /* initialise a loop structure, must be zero-initialised */ |
2512 | static void noinline ecb_cold |
3255 | ecb_noinline ecb_cold |
|
|
3256 | static void |
2513 | loop_init (EV_P_ unsigned int flags) EV_THROW |
3257 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2514 | { |
3258 | { |
2515 | if (!backend) |
3259 | if (!backend) |
2516 | { |
3260 | { |
2517 | origflags = flags; |
3261 | origflags = flags; |
2518 | |
3262 | |
… | |
… | |
2571 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3315 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2572 | #endif |
3316 | #endif |
2573 | #if EV_USE_SIGNALFD |
3317 | #if EV_USE_SIGNALFD |
2574 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3318 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2575 | #endif |
3319 | #endif |
|
|
3320 | #if EV_USE_TIMERFD |
|
|
3321 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3322 | #endif |
2576 | |
3323 | |
2577 | if (!(flags & EVBACKEND_MASK)) |
3324 | if (!(flags & EVBACKEND_MASK)) |
2578 | flags |= ev_recommended_backends (); |
3325 | flags |= ev_recommended_backends (); |
2579 | |
3326 | |
2580 | #if EV_USE_IOCP |
3327 | #if EV_USE_IOCP |
2581 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3328 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2582 | #endif |
3329 | #endif |
2583 | #if EV_USE_PORT |
3330 | #if EV_USE_PORT |
2584 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3331 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2585 | #endif |
3332 | #endif |
2586 | #if EV_USE_KQUEUE |
3333 | #if EV_USE_KQUEUE |
2587 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3334 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3335 | #endif |
|
|
3336 | #if EV_USE_IOURING |
|
|
3337 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3338 | #endif |
|
|
3339 | #if EV_USE_LINUXAIO |
|
|
3340 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2588 | #endif |
3341 | #endif |
2589 | #if EV_USE_EPOLL |
3342 | #if EV_USE_EPOLL |
2590 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3343 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2591 | #endif |
3344 | #endif |
2592 | #if EV_USE_POLL |
3345 | #if EV_USE_POLL |
2593 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3346 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2594 | #endif |
3347 | #endif |
2595 | #if EV_USE_SELECT |
3348 | #if EV_USE_SELECT |
2596 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3349 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2597 | #endif |
3350 | #endif |
2598 | |
3351 | |
2599 | ev_prepare_init (&pending_w, pendingcb); |
3352 | ev_prepare_init (&pending_w, pendingcb); |
2600 | |
3353 | |
2601 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3354 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2604 | #endif |
3357 | #endif |
2605 | } |
3358 | } |
2606 | } |
3359 | } |
2607 | |
3360 | |
2608 | /* free up a loop structure */ |
3361 | /* free up a loop structure */ |
2609 | void ecb_cold |
3362 | ecb_cold |
|
|
3363 | void |
2610 | ev_loop_destroy (EV_P) |
3364 | ev_loop_destroy (EV_P) |
2611 | { |
3365 | { |
2612 | int i; |
3366 | int i; |
2613 | |
3367 | |
2614 | #if EV_MULTIPLICITY |
3368 | #if EV_MULTIPLICITY |
… | |
… | |
2617 | return; |
3371 | return; |
2618 | #endif |
3372 | #endif |
2619 | |
3373 | |
2620 | #if EV_CLEANUP_ENABLE |
3374 | #if EV_CLEANUP_ENABLE |
2621 | /* queue cleanup watchers (and execute them) */ |
3375 | /* queue cleanup watchers (and execute them) */ |
2622 | if (expect_false (cleanupcnt)) |
3376 | if (ecb_expect_false (cleanupcnt)) |
2623 | { |
3377 | { |
2624 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3378 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2625 | EV_INVOKE_PENDING; |
3379 | EV_INVOKE_PENDING; |
2626 | } |
3380 | } |
2627 | #endif |
3381 | #endif |
… | |
… | |
2646 | #if EV_USE_SIGNALFD |
3400 | #if EV_USE_SIGNALFD |
2647 | if (ev_is_active (&sigfd_w)) |
3401 | if (ev_is_active (&sigfd_w)) |
2648 | close (sigfd); |
3402 | close (sigfd); |
2649 | #endif |
3403 | #endif |
2650 | |
3404 | |
|
|
3405 | #if EV_USE_TIMERFD |
|
|
3406 | if (ev_is_active (&timerfd_w)) |
|
|
3407 | close (timerfd); |
|
|
3408 | #endif |
|
|
3409 | |
2651 | #if EV_USE_INOTIFY |
3410 | #if EV_USE_INOTIFY |
2652 | if (fs_fd >= 0) |
3411 | if (fs_fd >= 0) |
2653 | close (fs_fd); |
3412 | close (fs_fd); |
2654 | #endif |
3413 | #endif |
2655 | |
3414 | |
2656 | if (backend_fd >= 0) |
3415 | if (backend_fd >= 0) |
2657 | close (backend_fd); |
3416 | close (backend_fd); |
2658 | |
3417 | |
2659 | #if EV_USE_IOCP |
3418 | #if EV_USE_IOCP |
2660 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3419 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2661 | #endif |
3420 | #endif |
2662 | #if EV_USE_PORT |
3421 | #if EV_USE_PORT |
2663 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3422 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2664 | #endif |
3423 | #endif |
2665 | #if EV_USE_KQUEUE |
3424 | #if EV_USE_KQUEUE |
2666 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3425 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3426 | #endif |
|
|
3427 | #if EV_USE_IOURING |
|
|
3428 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3429 | #endif |
|
|
3430 | #if EV_USE_LINUXAIO |
|
|
3431 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2667 | #endif |
3432 | #endif |
2668 | #if EV_USE_EPOLL |
3433 | #if EV_USE_EPOLL |
2669 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3434 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2670 | #endif |
3435 | #endif |
2671 | #if EV_USE_POLL |
3436 | #if EV_USE_POLL |
2672 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3437 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2673 | #endif |
3438 | #endif |
2674 | #if EV_USE_SELECT |
3439 | #if EV_USE_SELECT |
2675 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3440 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2676 | #endif |
3441 | #endif |
2677 | |
3442 | |
2678 | for (i = NUMPRI; i--; ) |
3443 | for (i = NUMPRI; i--; ) |
2679 | { |
3444 | { |
2680 | array_free (pending, [i]); |
3445 | array_free (pending, [i]); |
… | |
… | |
2722 | |
3487 | |
2723 | inline_size void |
3488 | inline_size void |
2724 | loop_fork (EV_P) |
3489 | loop_fork (EV_P) |
2725 | { |
3490 | { |
2726 | #if EV_USE_PORT |
3491 | #if EV_USE_PORT |
2727 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3492 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2728 | #endif |
3493 | #endif |
2729 | #if EV_USE_KQUEUE |
3494 | #if EV_USE_KQUEUE |
2730 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3495 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3496 | #endif |
|
|
3497 | #if EV_USE_IOURING |
|
|
3498 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3499 | #endif |
|
|
3500 | #if EV_USE_LINUXAIO |
|
|
3501 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2731 | #endif |
3502 | #endif |
2732 | #if EV_USE_EPOLL |
3503 | #if EV_USE_EPOLL |
2733 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3504 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2734 | #endif |
3505 | #endif |
2735 | #if EV_USE_INOTIFY |
3506 | #if EV_USE_INOTIFY |
2736 | infy_fork (EV_A); |
3507 | infy_fork (EV_A); |
2737 | #endif |
3508 | #endif |
2738 | |
3509 | |
|
|
3510 | if (postfork != 2) |
|
|
3511 | { |
|
|
3512 | #if EV_USE_SIGNALFD |
|
|
3513 | /* surprisingly, nothing needs to be done for signalfd, according to docs, it does the right thing on fork */ |
|
|
3514 | #endif |
|
|
3515 | |
|
|
3516 | #if EV_USE_TIMERFD |
|
|
3517 | if (ev_is_active (&timerfd_w)) |
|
|
3518 | { |
|
|
3519 | ev_ref (EV_A); |
|
|
3520 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3521 | |
|
|
3522 | close (timerfd); |
|
|
3523 | timerfd = -2; |
|
|
3524 | |
|
|
3525 | evtimerfd_init (EV_A); |
|
|
3526 | /* reschedule periodics, in case we missed something */ |
|
|
3527 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3528 | } |
|
|
3529 | #endif |
|
|
3530 | |
2739 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3531 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2740 | if (ev_is_active (&pipe_w)) |
3532 | if (ev_is_active (&pipe_w)) |
2741 | { |
3533 | { |
2742 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3534 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2743 | |
3535 | |
2744 | ev_ref (EV_A); |
3536 | ev_ref (EV_A); |
2745 | ev_io_stop (EV_A_ &pipe_w); |
3537 | ev_io_stop (EV_A_ &pipe_w); |
2746 | |
3538 | |
2747 | if (evpipe [0] >= 0) |
3539 | if (evpipe [0] >= 0) |
2748 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3540 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2749 | |
3541 | |
2750 | evpipe_init (EV_A); |
3542 | evpipe_init (EV_A); |
2751 | /* iterate over everything, in case we missed something before */ |
3543 | /* iterate over everything, in case we missed something before */ |
2752 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3544 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3545 | } |
|
|
3546 | #endif |
2753 | } |
3547 | } |
2754 | #endif |
|
|
2755 | |
3548 | |
2756 | postfork = 0; |
3549 | postfork = 0; |
2757 | } |
3550 | } |
2758 | |
3551 | |
2759 | #if EV_MULTIPLICITY |
3552 | #if EV_MULTIPLICITY |
2760 | |
3553 | |
|
|
3554 | ecb_cold |
2761 | struct ev_loop * ecb_cold |
3555 | struct ev_loop * |
2762 | ev_loop_new (unsigned int flags) EV_THROW |
3556 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2763 | { |
3557 | { |
2764 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3558 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2765 | |
3559 | |
2766 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3560 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2767 | loop_init (EV_A_ flags); |
3561 | loop_init (EV_A_ flags); |
… | |
… | |
2774 | } |
3568 | } |
2775 | |
3569 | |
2776 | #endif /* multiplicity */ |
3570 | #endif /* multiplicity */ |
2777 | |
3571 | |
2778 | #if EV_VERIFY |
3572 | #if EV_VERIFY |
2779 | static void noinline ecb_cold |
3573 | ecb_noinline ecb_cold |
|
|
3574 | static void |
2780 | verify_watcher (EV_P_ W w) |
3575 | verify_watcher (EV_P_ W w) |
2781 | { |
3576 | { |
2782 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3577 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2783 | |
3578 | |
2784 | if (w->pending) |
3579 | if (w->pending) |
2785 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3580 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2786 | } |
3581 | } |
2787 | |
3582 | |
2788 | static void noinline ecb_cold |
3583 | ecb_noinline ecb_cold |
|
|
3584 | static void |
2789 | verify_heap (EV_P_ ANHE *heap, int N) |
3585 | verify_heap (EV_P_ ANHE *heap, int N) |
2790 | { |
3586 | { |
2791 | int i; |
3587 | int i; |
2792 | |
3588 | |
2793 | for (i = HEAP0; i < N + HEAP0; ++i) |
3589 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2798 | |
3594 | |
2799 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3595 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2800 | } |
3596 | } |
2801 | } |
3597 | } |
2802 | |
3598 | |
2803 | static void noinline ecb_cold |
3599 | ecb_noinline ecb_cold |
|
|
3600 | static void |
2804 | array_verify (EV_P_ W *ws, int cnt) |
3601 | array_verify (EV_P_ W *ws, int cnt) |
2805 | { |
3602 | { |
2806 | while (cnt--) |
3603 | while (cnt--) |
2807 | { |
3604 | { |
2808 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3605 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2811 | } |
3608 | } |
2812 | #endif |
3609 | #endif |
2813 | |
3610 | |
2814 | #if EV_FEATURE_API |
3611 | #if EV_FEATURE_API |
2815 | void ecb_cold |
3612 | void ecb_cold |
2816 | ev_verify (EV_P) EV_THROW |
3613 | ev_verify (EV_P) EV_NOEXCEPT |
2817 | { |
3614 | { |
2818 | #if EV_VERIFY |
3615 | #if EV_VERIFY |
2819 | int i; |
3616 | int i; |
2820 | WL w, w2; |
3617 | WL w, w2; |
2821 | |
3618 | |
… | |
… | |
2897 | #endif |
3694 | #endif |
2898 | } |
3695 | } |
2899 | #endif |
3696 | #endif |
2900 | |
3697 | |
2901 | #if EV_MULTIPLICITY |
3698 | #if EV_MULTIPLICITY |
|
|
3699 | ecb_cold |
2902 | struct ev_loop * ecb_cold |
3700 | struct ev_loop * |
2903 | #else |
3701 | #else |
2904 | int |
3702 | int |
2905 | #endif |
3703 | #endif |
2906 | ev_default_loop (unsigned int flags) EV_THROW |
3704 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2907 | { |
3705 | { |
2908 | if (!ev_default_loop_ptr) |
3706 | if (!ev_default_loop_ptr) |
2909 | { |
3707 | { |
2910 | #if EV_MULTIPLICITY |
3708 | #if EV_MULTIPLICITY |
2911 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3709 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2930 | |
3728 | |
2931 | return ev_default_loop_ptr; |
3729 | return ev_default_loop_ptr; |
2932 | } |
3730 | } |
2933 | |
3731 | |
2934 | void |
3732 | void |
2935 | ev_loop_fork (EV_P) EV_THROW |
3733 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2936 | { |
3734 | { |
2937 | postfork = 1; |
3735 | postfork = 1; |
2938 | } |
3736 | } |
2939 | |
3737 | |
2940 | /*****************************************************************************/ |
3738 | /*****************************************************************************/ |
… | |
… | |
2944 | { |
3742 | { |
2945 | EV_CB_INVOKE ((W)w, revents); |
3743 | EV_CB_INVOKE ((W)w, revents); |
2946 | } |
3744 | } |
2947 | |
3745 | |
2948 | unsigned int |
3746 | unsigned int |
2949 | ev_pending_count (EV_P) EV_THROW |
3747 | ev_pending_count (EV_P) EV_NOEXCEPT |
2950 | { |
3748 | { |
2951 | int pri; |
3749 | int pri; |
2952 | unsigned int count = 0; |
3750 | unsigned int count = 0; |
2953 | |
3751 | |
2954 | for (pri = NUMPRI; pri--; ) |
3752 | for (pri = NUMPRI; pri--; ) |
2955 | count += pendingcnt [pri]; |
3753 | count += pendingcnt [pri]; |
2956 | |
3754 | |
2957 | return count; |
3755 | return count; |
2958 | } |
3756 | } |
2959 | |
3757 | |
2960 | void noinline |
3758 | ecb_noinline |
|
|
3759 | void |
2961 | ev_invoke_pending (EV_P) |
3760 | ev_invoke_pending (EV_P) |
2962 | { |
3761 | { |
2963 | pendingpri = NUMPRI; |
3762 | pendingpri = NUMPRI; |
2964 | |
3763 | |
2965 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3764 | do |
2966 | { |
3765 | { |
2967 | --pendingpri; |
3766 | --pendingpri; |
2968 | |
3767 | |
|
|
3768 | /* pendingpri possibly gets modified in the inner loop */ |
2969 | while (pendingcnt [pendingpri]) |
3769 | while (pendingcnt [pendingpri]) |
2970 | { |
3770 | { |
2971 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3771 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2972 | |
3772 | |
2973 | p->w->pending = 0; |
3773 | p->w->pending = 0; |
2974 | EV_CB_INVOKE (p->w, p->events); |
3774 | EV_CB_INVOKE (p->w, p->events); |
2975 | EV_FREQUENT_CHECK; |
3775 | EV_FREQUENT_CHECK; |
2976 | } |
3776 | } |
2977 | } |
3777 | } |
|
|
3778 | while (pendingpri); |
2978 | } |
3779 | } |
2979 | |
3780 | |
2980 | #if EV_IDLE_ENABLE |
3781 | #if EV_IDLE_ENABLE |
2981 | /* make idle watchers pending. this handles the "call-idle */ |
3782 | /* make idle watchers pending. this handles the "call-idle */ |
2982 | /* only when higher priorities are idle" logic */ |
3783 | /* only when higher priorities are idle" logic */ |
2983 | inline_size void |
3784 | inline_size void |
2984 | idle_reify (EV_P) |
3785 | idle_reify (EV_P) |
2985 | { |
3786 | { |
2986 | if (expect_false (idleall)) |
3787 | if (ecb_expect_false (idleall)) |
2987 | { |
3788 | { |
2988 | int pri; |
3789 | int pri; |
2989 | |
3790 | |
2990 | for (pri = NUMPRI; pri--; ) |
3791 | for (pri = NUMPRI; pri--; ) |
2991 | { |
3792 | { |
… | |
… | |
3021 | { |
3822 | { |
3022 | ev_at (w) += w->repeat; |
3823 | ev_at (w) += w->repeat; |
3023 | if (ev_at (w) < mn_now) |
3824 | if (ev_at (w) < mn_now) |
3024 | ev_at (w) = mn_now; |
3825 | ev_at (w) = mn_now; |
3025 | |
3826 | |
3026 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3827 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
3027 | |
3828 | |
3028 | ANHE_at_cache (timers [HEAP0]); |
3829 | ANHE_at_cache (timers [HEAP0]); |
3029 | downheap (timers, timercnt, HEAP0); |
3830 | downheap (timers, timercnt, HEAP0); |
3030 | } |
3831 | } |
3031 | else |
3832 | else |
… | |
… | |
3040 | } |
3841 | } |
3041 | } |
3842 | } |
3042 | |
3843 | |
3043 | #if EV_PERIODIC_ENABLE |
3844 | #if EV_PERIODIC_ENABLE |
3044 | |
3845 | |
3045 | static void noinline |
3846 | ecb_noinline |
|
|
3847 | static void |
3046 | periodic_recalc (EV_P_ ev_periodic *w) |
3848 | periodic_recalc (EV_P_ ev_periodic *w) |
3047 | { |
3849 | { |
3048 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3850 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3049 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3851 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3050 | |
3852 | |
… | |
… | |
3052 | while (at <= ev_rt_now) |
3854 | while (at <= ev_rt_now) |
3053 | { |
3855 | { |
3054 | ev_tstamp nat = at + w->interval; |
3856 | ev_tstamp nat = at + w->interval; |
3055 | |
3857 | |
3056 | /* when resolution fails us, we use ev_rt_now */ |
3858 | /* when resolution fails us, we use ev_rt_now */ |
3057 | if (expect_false (nat == at)) |
3859 | if (ecb_expect_false (nat == at)) |
3058 | { |
3860 | { |
3059 | at = ev_rt_now; |
3861 | at = ev_rt_now; |
3060 | break; |
3862 | break; |
3061 | } |
3863 | } |
3062 | |
3864 | |
… | |
… | |
3108 | } |
3910 | } |
3109 | } |
3911 | } |
3110 | |
3912 | |
3111 | /* simply recalculate all periodics */ |
3913 | /* simply recalculate all periodics */ |
3112 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3914 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3113 | static void noinline ecb_cold |
3915 | ecb_noinline ecb_cold |
|
|
3916 | static void |
3114 | periodics_reschedule (EV_P) |
3917 | periodics_reschedule (EV_P) |
3115 | { |
3918 | { |
3116 | int i; |
3919 | int i; |
3117 | |
3920 | |
3118 | /* adjust periodics after time jump */ |
3921 | /* adjust periodics after time jump */ |
… | |
… | |
3131 | reheap (periodics, periodiccnt); |
3934 | reheap (periodics, periodiccnt); |
3132 | } |
3935 | } |
3133 | #endif |
3936 | #endif |
3134 | |
3937 | |
3135 | /* adjust all timers by a given offset */ |
3938 | /* adjust all timers by a given offset */ |
3136 | static void noinline ecb_cold |
3939 | ecb_noinline ecb_cold |
|
|
3940 | static void |
3137 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3941 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3138 | { |
3942 | { |
3139 | int i; |
3943 | int i; |
3140 | |
3944 | |
3141 | for (i = 0; i < timercnt; ++i) |
3945 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3150 | /* also detect if there was a timejump, and act accordingly */ |
3954 | /* also detect if there was a timejump, and act accordingly */ |
3151 | inline_speed void |
3955 | inline_speed void |
3152 | time_update (EV_P_ ev_tstamp max_block) |
3956 | time_update (EV_P_ ev_tstamp max_block) |
3153 | { |
3957 | { |
3154 | #if EV_USE_MONOTONIC |
3958 | #if EV_USE_MONOTONIC |
3155 | if (expect_true (have_monotonic)) |
3959 | if (ecb_expect_true (have_monotonic)) |
3156 | { |
3960 | { |
3157 | int i; |
3961 | int i; |
3158 | ev_tstamp odiff = rtmn_diff; |
3962 | ev_tstamp odiff = rtmn_diff; |
3159 | |
3963 | |
3160 | mn_now = get_clock (); |
3964 | mn_now = get_clock (); |
3161 | |
3965 | |
3162 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3966 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3163 | /* interpolate in the meantime */ |
3967 | /* interpolate in the meantime */ |
3164 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3968 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
3165 | { |
3969 | { |
3166 | ev_rt_now = rtmn_diff + mn_now; |
3970 | ev_rt_now = rtmn_diff + mn_now; |
3167 | return; |
3971 | return; |
3168 | } |
3972 | } |
3169 | |
3973 | |
… | |
… | |
3183 | ev_tstamp diff; |
3987 | ev_tstamp diff; |
3184 | rtmn_diff = ev_rt_now - mn_now; |
3988 | rtmn_diff = ev_rt_now - mn_now; |
3185 | |
3989 | |
3186 | diff = odiff - rtmn_diff; |
3990 | diff = odiff - rtmn_diff; |
3187 | |
3991 | |
3188 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3992 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
3189 | return; /* all is well */ |
3993 | return; /* all is well */ |
3190 | |
3994 | |
3191 | ev_rt_now = ev_time (); |
3995 | ev_rt_now = ev_time (); |
3192 | mn_now = get_clock (); |
3996 | mn_now = get_clock (); |
3193 | now_floor = mn_now; |
3997 | now_floor = mn_now; |
… | |
… | |
3202 | else |
4006 | else |
3203 | #endif |
4007 | #endif |
3204 | { |
4008 | { |
3205 | ev_rt_now = ev_time (); |
4009 | ev_rt_now = ev_time (); |
3206 | |
4010 | |
3207 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
4011 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
3208 | { |
4012 | { |
3209 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
4013 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3210 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
4014 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3211 | #if EV_PERIODIC_ENABLE |
4015 | #if EV_PERIODIC_ENABLE |
3212 | periodics_reschedule (EV_A); |
4016 | periodics_reschedule (EV_A); |
… | |
… | |
3235 | #if EV_VERIFY >= 2 |
4039 | #if EV_VERIFY >= 2 |
3236 | ev_verify (EV_A); |
4040 | ev_verify (EV_A); |
3237 | #endif |
4041 | #endif |
3238 | |
4042 | |
3239 | #ifndef _WIN32 |
4043 | #ifndef _WIN32 |
3240 | if (expect_false (curpid)) /* penalise the forking check even more */ |
4044 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3241 | if (expect_false (getpid () != curpid)) |
4045 | if (ecb_expect_false (getpid () != curpid)) |
3242 | { |
4046 | { |
3243 | curpid = getpid (); |
4047 | curpid = getpid (); |
3244 | postfork = 1; |
4048 | postfork = 1; |
3245 | } |
4049 | } |
3246 | #endif |
4050 | #endif |
3247 | |
4051 | |
3248 | #if EV_FORK_ENABLE |
4052 | #if EV_FORK_ENABLE |
3249 | /* we might have forked, so queue fork handlers */ |
4053 | /* we might have forked, so queue fork handlers */ |
3250 | if (expect_false (postfork)) |
4054 | if (ecb_expect_false (postfork)) |
3251 | if (forkcnt) |
4055 | if (forkcnt) |
3252 | { |
4056 | { |
3253 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
4057 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3254 | EV_INVOKE_PENDING; |
4058 | EV_INVOKE_PENDING; |
3255 | } |
4059 | } |
3256 | #endif |
4060 | #endif |
3257 | |
4061 | |
3258 | #if EV_PREPARE_ENABLE |
4062 | #if EV_PREPARE_ENABLE |
3259 | /* queue prepare watchers (and execute them) */ |
4063 | /* queue prepare watchers (and execute them) */ |
3260 | if (expect_false (preparecnt)) |
4064 | if (ecb_expect_false (preparecnt)) |
3261 | { |
4065 | { |
3262 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
4066 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3263 | EV_INVOKE_PENDING; |
4067 | EV_INVOKE_PENDING; |
3264 | } |
4068 | } |
3265 | #endif |
4069 | #endif |
3266 | |
4070 | |
3267 | if (expect_false (loop_done)) |
4071 | if (ecb_expect_false (loop_done)) |
3268 | break; |
4072 | break; |
3269 | |
4073 | |
3270 | /* we might have forked, so reify kernel state if necessary */ |
4074 | /* we might have forked, so reify kernel state if necessary */ |
3271 | if (expect_false (postfork)) |
4075 | if (ecb_expect_false (postfork)) |
3272 | loop_fork (EV_A); |
4076 | loop_fork (EV_A); |
3273 | |
4077 | |
3274 | /* update fd-related kernel structures */ |
4078 | /* update fd-related kernel structures */ |
3275 | fd_reify (EV_A); |
4079 | fd_reify (EV_A); |
3276 | |
4080 | |
… | |
… | |
3281 | |
4085 | |
3282 | /* remember old timestamp for io_blocktime calculation */ |
4086 | /* remember old timestamp for io_blocktime calculation */ |
3283 | ev_tstamp prev_mn_now = mn_now; |
4087 | ev_tstamp prev_mn_now = mn_now; |
3284 | |
4088 | |
3285 | /* update time to cancel out callback processing overhead */ |
4089 | /* update time to cancel out callback processing overhead */ |
3286 | time_update (EV_A_ 1e100); |
4090 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3287 | |
4091 | |
3288 | /* from now on, we want a pipe-wake-up */ |
4092 | /* from now on, we want a pipe-wake-up */ |
3289 | pipe_write_wanted = 1; |
4093 | pipe_write_wanted = 1; |
3290 | |
4094 | |
3291 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
4095 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3292 | |
4096 | |
3293 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
4097 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3294 | { |
4098 | { |
3295 | waittime = MAX_BLOCKTIME; |
4099 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
|
|
4100 | |
|
|
4101 | #if EV_USE_MONOTONIC |
|
|
4102 | if (ecb_expect_true (have_monotonic)) |
|
|
4103 | { |
|
|
4104 | #if EV_USE_TIMERFD |
|
|
4105 | /* sleep a lot longer when we can reliably detect timejumps */ |
|
|
4106 | if (ecb_expect_true (timerfd != -1)) |
|
|
4107 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4108 | #endif |
|
|
4109 | #if !EV_PERIODIC_ENABLE |
|
|
4110 | /* without periodics but with monotonic clock there is no need */ |
|
|
4111 | /* for any time jump detection, so sleep longer */ |
|
|
4112 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4113 | #endif |
|
|
4114 | } |
|
|
4115 | #endif |
3296 | |
4116 | |
3297 | if (timercnt) |
4117 | if (timercnt) |
3298 | { |
4118 | { |
3299 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
4119 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3300 | if (waittime > to) waittime = to; |
4120 | if (waittime > to) waittime = to; |
… | |
… | |
3307 | if (waittime > to) waittime = to; |
4127 | if (waittime > to) waittime = to; |
3308 | } |
4128 | } |
3309 | #endif |
4129 | #endif |
3310 | |
4130 | |
3311 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
4131 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3312 | if (expect_false (waittime < timeout_blocktime)) |
4132 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3313 | waittime = timeout_blocktime; |
4133 | waittime = timeout_blocktime; |
3314 | |
4134 | |
3315 | /* at this point, we NEED to wait, so we have to ensure */ |
4135 | /* now there are two more special cases left, either we have |
3316 | /* to pass a minimum nonzero value to the backend */ |
4136 | * already-expired timers, so we should not sleep, or we have timers |
|
|
4137 | * that expire very soon, in which case we need to wait for a minimum |
|
|
4138 | * amount of time for some event loop backends. |
|
|
4139 | */ |
3317 | if (expect_false (waittime < backend_mintime)) |
4140 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
4141 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
4142 | ? EV_TS_CONST (0.) |
3318 | waittime = backend_mintime; |
4143 | : backend_mintime; |
3319 | |
4144 | |
3320 | /* extra check because io_blocktime is commonly 0 */ |
4145 | /* extra check because io_blocktime is commonly 0 */ |
3321 | if (expect_false (io_blocktime)) |
4146 | if (ecb_expect_false (io_blocktime)) |
3322 | { |
4147 | { |
3323 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
4148 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3324 | |
4149 | |
3325 | if (sleeptime > waittime - backend_mintime) |
4150 | if (sleeptime > waittime - backend_mintime) |
3326 | sleeptime = waittime - backend_mintime; |
4151 | sleeptime = waittime - backend_mintime; |
3327 | |
4152 | |
3328 | if (expect_true (sleeptime > 0.)) |
4153 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3329 | { |
4154 | { |
3330 | ev_sleep (sleeptime); |
4155 | ev_sleep (sleeptime); |
3331 | waittime -= sleeptime; |
4156 | waittime -= sleeptime; |
3332 | } |
4157 | } |
3333 | } |
4158 | } |
… | |
… | |
3347 | { |
4172 | { |
3348 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
4173 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3349 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
4174 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3350 | } |
4175 | } |
3351 | |
4176 | |
3352 | |
|
|
3353 | /* update ev_rt_now, do magic */ |
4177 | /* update ev_rt_now, do magic */ |
3354 | time_update (EV_A_ waittime + sleeptime); |
4178 | time_update (EV_A_ waittime + sleeptime); |
3355 | } |
4179 | } |
3356 | |
4180 | |
3357 | /* queue pending timers and reschedule them */ |
4181 | /* queue pending timers and reschedule them */ |
… | |
… | |
3365 | idle_reify (EV_A); |
4189 | idle_reify (EV_A); |
3366 | #endif |
4190 | #endif |
3367 | |
4191 | |
3368 | #if EV_CHECK_ENABLE |
4192 | #if EV_CHECK_ENABLE |
3369 | /* queue check watchers, to be executed first */ |
4193 | /* queue check watchers, to be executed first */ |
3370 | if (expect_false (checkcnt)) |
4194 | if (ecb_expect_false (checkcnt)) |
3371 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4195 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3372 | #endif |
4196 | #endif |
3373 | |
4197 | |
3374 | EV_INVOKE_PENDING; |
4198 | EV_INVOKE_PENDING; |
3375 | } |
4199 | } |
3376 | while (expect_true ( |
4200 | while (ecb_expect_true ( |
3377 | activecnt |
4201 | activecnt |
3378 | && !loop_done |
4202 | && !loop_done |
3379 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4203 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3380 | )); |
4204 | )); |
3381 | |
4205 | |
… | |
… | |
3388 | |
4212 | |
3389 | return activecnt; |
4213 | return activecnt; |
3390 | } |
4214 | } |
3391 | |
4215 | |
3392 | void |
4216 | void |
3393 | ev_break (EV_P_ int how) EV_THROW |
4217 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3394 | { |
4218 | { |
3395 | loop_done = how; |
4219 | loop_done = how; |
3396 | } |
4220 | } |
3397 | |
4221 | |
3398 | void |
4222 | void |
3399 | ev_ref (EV_P) EV_THROW |
4223 | ev_ref (EV_P) EV_NOEXCEPT |
3400 | { |
4224 | { |
3401 | ++activecnt; |
4225 | ++activecnt; |
3402 | } |
4226 | } |
3403 | |
4227 | |
3404 | void |
4228 | void |
3405 | ev_unref (EV_P) EV_THROW |
4229 | ev_unref (EV_P) EV_NOEXCEPT |
3406 | { |
4230 | { |
3407 | --activecnt; |
4231 | --activecnt; |
3408 | } |
4232 | } |
3409 | |
4233 | |
3410 | void |
4234 | void |
3411 | ev_now_update (EV_P) EV_THROW |
4235 | ev_now_update (EV_P) EV_NOEXCEPT |
3412 | { |
4236 | { |
3413 | time_update (EV_A_ 1e100); |
4237 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3414 | } |
4238 | } |
3415 | |
4239 | |
3416 | void |
4240 | void |
3417 | ev_suspend (EV_P) EV_THROW |
4241 | ev_suspend (EV_P) EV_NOEXCEPT |
3418 | { |
4242 | { |
3419 | ev_now_update (EV_A); |
4243 | ev_now_update (EV_A); |
3420 | } |
4244 | } |
3421 | |
4245 | |
3422 | void |
4246 | void |
3423 | ev_resume (EV_P) EV_THROW |
4247 | ev_resume (EV_P) EV_NOEXCEPT |
3424 | { |
4248 | { |
3425 | ev_tstamp mn_prev = mn_now; |
4249 | ev_tstamp mn_prev = mn_now; |
3426 | |
4250 | |
3427 | ev_now_update (EV_A); |
4251 | ev_now_update (EV_A); |
3428 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4252 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3445 | inline_size void |
4269 | inline_size void |
3446 | wlist_del (WL *head, WL elem) |
4270 | wlist_del (WL *head, WL elem) |
3447 | { |
4271 | { |
3448 | while (*head) |
4272 | while (*head) |
3449 | { |
4273 | { |
3450 | if (expect_true (*head == elem)) |
4274 | if (ecb_expect_true (*head == elem)) |
3451 | { |
4275 | { |
3452 | *head = elem->next; |
4276 | *head = elem->next; |
3453 | break; |
4277 | break; |
3454 | } |
4278 | } |
3455 | |
4279 | |
… | |
… | |
3467 | w->pending = 0; |
4291 | w->pending = 0; |
3468 | } |
4292 | } |
3469 | } |
4293 | } |
3470 | |
4294 | |
3471 | int |
4295 | int |
3472 | ev_clear_pending (EV_P_ void *w) EV_THROW |
4296 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3473 | { |
4297 | { |
3474 | W w_ = (W)w; |
4298 | W w_ = (W)w; |
3475 | int pending = w_->pending; |
4299 | int pending = w_->pending; |
3476 | |
4300 | |
3477 | if (expect_true (pending)) |
4301 | if (ecb_expect_true (pending)) |
3478 | { |
4302 | { |
3479 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4303 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3480 | p->w = (W)&pending_w; |
4304 | p->w = (W)&pending_w; |
3481 | w_->pending = 0; |
4305 | w_->pending = 0; |
3482 | return p->events; |
4306 | return p->events; |
… | |
… | |
3509 | w->active = 0; |
4333 | w->active = 0; |
3510 | } |
4334 | } |
3511 | |
4335 | |
3512 | /*****************************************************************************/ |
4336 | /*****************************************************************************/ |
3513 | |
4337 | |
3514 | void noinline |
4338 | ecb_noinline |
|
|
4339 | void |
3515 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
4340 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3516 | { |
4341 | { |
3517 | int fd = w->fd; |
4342 | int fd = w->fd; |
3518 | |
4343 | |
3519 | if (expect_false (ev_is_active (w))) |
4344 | if (ecb_expect_false (ev_is_active (w))) |
3520 | return; |
4345 | return; |
3521 | |
4346 | |
3522 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4347 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3523 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4348 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3524 | |
4349 | |
|
|
4350 | #if EV_VERIFY >= 2 |
|
|
4351 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4352 | #endif |
3525 | EV_FREQUENT_CHECK; |
4353 | EV_FREQUENT_CHECK; |
3526 | |
4354 | |
3527 | ev_start (EV_A_ (W)w, 1); |
4355 | ev_start (EV_A_ (W)w, 1); |
3528 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4356 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3529 | wlist_add (&anfds[fd].head, (WL)w); |
4357 | wlist_add (&anfds[fd].head, (WL)w); |
3530 | |
4358 | |
3531 | /* common bug, apparently */ |
4359 | /* common bug, apparently */ |
3532 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
4360 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3533 | |
4361 | |
… | |
… | |
3535 | w->events &= ~EV__IOFDSET; |
4363 | w->events &= ~EV__IOFDSET; |
3536 | |
4364 | |
3537 | EV_FREQUENT_CHECK; |
4365 | EV_FREQUENT_CHECK; |
3538 | } |
4366 | } |
3539 | |
4367 | |
3540 | void noinline |
4368 | ecb_noinline |
|
|
4369 | void |
3541 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
4370 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3542 | { |
4371 | { |
3543 | clear_pending (EV_A_ (W)w); |
4372 | clear_pending (EV_A_ (W)w); |
3544 | if (expect_false (!ev_is_active (w))) |
4373 | if (ecb_expect_false (!ev_is_active (w))) |
3545 | return; |
4374 | return; |
3546 | |
4375 | |
3547 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4376 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3548 | |
4377 | |
|
|
4378 | #if EV_VERIFY >= 2 |
|
|
4379 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4380 | #endif |
3549 | EV_FREQUENT_CHECK; |
4381 | EV_FREQUENT_CHECK; |
3550 | |
4382 | |
3551 | wlist_del (&anfds[w->fd].head, (WL)w); |
4383 | wlist_del (&anfds[w->fd].head, (WL)w); |
3552 | ev_stop (EV_A_ (W)w); |
4384 | ev_stop (EV_A_ (W)w); |
3553 | |
4385 | |
3554 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4386 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3555 | |
4387 | |
3556 | EV_FREQUENT_CHECK; |
4388 | EV_FREQUENT_CHECK; |
3557 | } |
4389 | } |
3558 | |
4390 | |
3559 | void noinline |
4391 | ecb_noinline |
|
|
4392 | void |
3560 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
4393 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3561 | { |
4394 | { |
3562 | if (expect_false (ev_is_active (w))) |
4395 | if (ecb_expect_false (ev_is_active (w))) |
3563 | return; |
4396 | return; |
3564 | |
4397 | |
3565 | ev_at (w) += mn_now; |
4398 | ev_at (w) += mn_now; |
3566 | |
4399 | |
3567 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4400 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3568 | |
4401 | |
3569 | EV_FREQUENT_CHECK; |
4402 | EV_FREQUENT_CHECK; |
3570 | |
4403 | |
3571 | ++timercnt; |
4404 | ++timercnt; |
3572 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4405 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3573 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4406 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3574 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4407 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3575 | ANHE_at_cache (timers [ev_active (w)]); |
4408 | ANHE_at_cache (timers [ev_active (w)]); |
3576 | upheap (timers, ev_active (w)); |
4409 | upheap (timers, ev_active (w)); |
3577 | |
4410 | |
3578 | EV_FREQUENT_CHECK; |
4411 | EV_FREQUENT_CHECK; |
3579 | |
4412 | |
3580 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4413 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3581 | } |
4414 | } |
3582 | |
4415 | |
3583 | void noinline |
4416 | ecb_noinline |
|
|
4417 | void |
3584 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
4418 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3585 | { |
4419 | { |
3586 | clear_pending (EV_A_ (W)w); |
4420 | clear_pending (EV_A_ (W)w); |
3587 | if (expect_false (!ev_is_active (w))) |
4421 | if (ecb_expect_false (!ev_is_active (w))) |
3588 | return; |
4422 | return; |
3589 | |
4423 | |
3590 | EV_FREQUENT_CHECK; |
4424 | EV_FREQUENT_CHECK; |
3591 | |
4425 | |
3592 | { |
4426 | { |
… | |
… | |
3594 | |
4428 | |
3595 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4429 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3596 | |
4430 | |
3597 | --timercnt; |
4431 | --timercnt; |
3598 | |
4432 | |
3599 | if (expect_true (active < timercnt + HEAP0)) |
4433 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3600 | { |
4434 | { |
3601 | timers [active] = timers [timercnt + HEAP0]; |
4435 | timers [active] = timers [timercnt + HEAP0]; |
3602 | adjustheap (timers, timercnt, active); |
4436 | adjustheap (timers, timercnt, active); |
3603 | } |
4437 | } |
3604 | } |
4438 | } |
… | |
… | |
3608 | ev_stop (EV_A_ (W)w); |
4442 | ev_stop (EV_A_ (W)w); |
3609 | |
4443 | |
3610 | EV_FREQUENT_CHECK; |
4444 | EV_FREQUENT_CHECK; |
3611 | } |
4445 | } |
3612 | |
4446 | |
3613 | void noinline |
4447 | ecb_noinline |
|
|
4448 | void |
3614 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4449 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3615 | { |
4450 | { |
3616 | EV_FREQUENT_CHECK; |
4451 | EV_FREQUENT_CHECK; |
3617 | |
4452 | |
3618 | clear_pending (EV_A_ (W)w); |
4453 | clear_pending (EV_A_ (W)w); |
3619 | |
4454 | |
… | |
… | |
3636 | |
4471 | |
3637 | EV_FREQUENT_CHECK; |
4472 | EV_FREQUENT_CHECK; |
3638 | } |
4473 | } |
3639 | |
4474 | |
3640 | ev_tstamp |
4475 | ev_tstamp |
3641 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4476 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3642 | { |
4477 | { |
3643 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4478 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
3644 | } |
4479 | } |
3645 | |
4480 | |
3646 | #if EV_PERIODIC_ENABLE |
4481 | #if EV_PERIODIC_ENABLE |
3647 | void noinline |
4482 | ecb_noinline |
|
|
4483 | void |
3648 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4484 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3649 | { |
4485 | { |
3650 | if (expect_false (ev_is_active (w))) |
4486 | if (ecb_expect_false (ev_is_active (w))) |
3651 | return; |
4487 | return; |
|
|
4488 | |
|
|
4489 | #if EV_USE_TIMERFD |
|
|
4490 | if (timerfd == -2) |
|
|
4491 | evtimerfd_init (EV_A); |
|
|
4492 | #endif |
3652 | |
4493 | |
3653 | if (w->reschedule_cb) |
4494 | if (w->reschedule_cb) |
3654 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4495 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3655 | else if (w->interval) |
4496 | else if (w->interval) |
3656 | { |
4497 | { |
… | |
… | |
3662 | |
4503 | |
3663 | EV_FREQUENT_CHECK; |
4504 | EV_FREQUENT_CHECK; |
3664 | |
4505 | |
3665 | ++periodiccnt; |
4506 | ++periodiccnt; |
3666 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4507 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3667 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4508 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3668 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4509 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3669 | ANHE_at_cache (periodics [ev_active (w)]); |
4510 | ANHE_at_cache (periodics [ev_active (w)]); |
3670 | upheap (periodics, ev_active (w)); |
4511 | upheap (periodics, ev_active (w)); |
3671 | |
4512 | |
3672 | EV_FREQUENT_CHECK; |
4513 | EV_FREQUENT_CHECK; |
3673 | |
4514 | |
3674 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4515 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3675 | } |
4516 | } |
3676 | |
4517 | |
3677 | void noinline |
4518 | ecb_noinline |
|
|
4519 | void |
3678 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4520 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3679 | { |
4521 | { |
3680 | clear_pending (EV_A_ (W)w); |
4522 | clear_pending (EV_A_ (W)w); |
3681 | if (expect_false (!ev_is_active (w))) |
4523 | if (ecb_expect_false (!ev_is_active (w))) |
3682 | return; |
4524 | return; |
3683 | |
4525 | |
3684 | EV_FREQUENT_CHECK; |
4526 | EV_FREQUENT_CHECK; |
3685 | |
4527 | |
3686 | { |
4528 | { |
… | |
… | |
3688 | |
4530 | |
3689 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4531 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3690 | |
4532 | |
3691 | --periodiccnt; |
4533 | --periodiccnt; |
3692 | |
4534 | |
3693 | if (expect_true (active < periodiccnt + HEAP0)) |
4535 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3694 | { |
4536 | { |
3695 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4537 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3696 | adjustheap (periodics, periodiccnt, active); |
4538 | adjustheap (periodics, periodiccnt, active); |
3697 | } |
4539 | } |
3698 | } |
4540 | } |
… | |
… | |
3700 | ev_stop (EV_A_ (W)w); |
4542 | ev_stop (EV_A_ (W)w); |
3701 | |
4543 | |
3702 | EV_FREQUENT_CHECK; |
4544 | EV_FREQUENT_CHECK; |
3703 | } |
4545 | } |
3704 | |
4546 | |
3705 | void noinline |
4547 | ecb_noinline |
|
|
4548 | void |
3706 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4549 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3707 | { |
4550 | { |
3708 | /* TODO: use adjustheap and recalculation */ |
4551 | /* TODO: use adjustheap and recalculation */ |
3709 | ev_periodic_stop (EV_A_ w); |
4552 | ev_periodic_stop (EV_A_ w); |
3710 | ev_periodic_start (EV_A_ w); |
4553 | ev_periodic_start (EV_A_ w); |
3711 | } |
4554 | } |
… | |
… | |
3715 | # define SA_RESTART 0 |
4558 | # define SA_RESTART 0 |
3716 | #endif |
4559 | #endif |
3717 | |
4560 | |
3718 | #if EV_SIGNAL_ENABLE |
4561 | #if EV_SIGNAL_ENABLE |
3719 | |
4562 | |
3720 | void noinline |
4563 | ecb_noinline |
|
|
4564 | void |
3721 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4565 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3722 | { |
4566 | { |
3723 | if (expect_false (ev_is_active (w))) |
4567 | if (ecb_expect_false (ev_is_active (w))) |
3724 | return; |
4568 | return; |
3725 | |
4569 | |
3726 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4570 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3727 | |
4571 | |
3728 | #if EV_MULTIPLICITY |
4572 | #if EV_MULTIPLICITY |
… | |
… | |
3797 | } |
4641 | } |
3798 | |
4642 | |
3799 | EV_FREQUENT_CHECK; |
4643 | EV_FREQUENT_CHECK; |
3800 | } |
4644 | } |
3801 | |
4645 | |
3802 | void noinline |
4646 | ecb_noinline |
|
|
4647 | void |
3803 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4648 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3804 | { |
4649 | { |
3805 | clear_pending (EV_A_ (W)w); |
4650 | clear_pending (EV_A_ (W)w); |
3806 | if (expect_false (!ev_is_active (w))) |
4651 | if (ecb_expect_false (!ev_is_active (w))) |
3807 | return; |
4652 | return; |
3808 | |
4653 | |
3809 | EV_FREQUENT_CHECK; |
4654 | EV_FREQUENT_CHECK; |
3810 | |
4655 | |
3811 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4656 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3839 | #endif |
4684 | #endif |
3840 | |
4685 | |
3841 | #if EV_CHILD_ENABLE |
4686 | #if EV_CHILD_ENABLE |
3842 | |
4687 | |
3843 | void |
4688 | void |
3844 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4689 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3845 | { |
4690 | { |
3846 | #if EV_MULTIPLICITY |
4691 | #if EV_MULTIPLICITY |
3847 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4692 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3848 | #endif |
4693 | #endif |
3849 | if (expect_false (ev_is_active (w))) |
4694 | if (ecb_expect_false (ev_is_active (w))) |
3850 | return; |
4695 | return; |
3851 | |
4696 | |
3852 | EV_FREQUENT_CHECK; |
4697 | EV_FREQUENT_CHECK; |
3853 | |
4698 | |
3854 | ev_start (EV_A_ (W)w, 1); |
4699 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3856 | |
4701 | |
3857 | EV_FREQUENT_CHECK; |
4702 | EV_FREQUENT_CHECK; |
3858 | } |
4703 | } |
3859 | |
4704 | |
3860 | void |
4705 | void |
3861 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4706 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3862 | { |
4707 | { |
3863 | clear_pending (EV_A_ (W)w); |
4708 | clear_pending (EV_A_ (W)w); |
3864 | if (expect_false (!ev_is_active (w))) |
4709 | if (ecb_expect_false (!ev_is_active (w))) |
3865 | return; |
4710 | return; |
3866 | |
4711 | |
3867 | EV_FREQUENT_CHECK; |
4712 | EV_FREQUENT_CHECK; |
3868 | |
4713 | |
3869 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4714 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3883 | |
4728 | |
3884 | #define DEF_STAT_INTERVAL 5.0074891 |
4729 | #define DEF_STAT_INTERVAL 5.0074891 |
3885 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4730 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3886 | #define MIN_STAT_INTERVAL 0.1074891 |
4731 | #define MIN_STAT_INTERVAL 0.1074891 |
3887 | |
4732 | |
3888 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4733 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3889 | |
4734 | |
3890 | #if EV_USE_INOTIFY |
4735 | #if EV_USE_INOTIFY |
3891 | |
4736 | |
3892 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4737 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3893 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4738 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3894 | |
4739 | |
3895 | static void noinline |
4740 | ecb_noinline |
|
|
4741 | static void |
3896 | infy_add (EV_P_ ev_stat *w) |
4742 | infy_add (EV_P_ ev_stat *w) |
3897 | { |
4743 | { |
3898 | w->wd = inotify_add_watch (fs_fd, w->path, |
4744 | w->wd = inotify_add_watch (fs_fd, w->path, |
3899 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4745 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3900 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4746 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
3964 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4810 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3965 | ev_timer_again (EV_A_ &w->timer); |
4811 | ev_timer_again (EV_A_ &w->timer); |
3966 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4812 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3967 | } |
4813 | } |
3968 | |
4814 | |
3969 | static void noinline |
4815 | ecb_noinline |
|
|
4816 | static void |
3970 | infy_del (EV_P_ ev_stat *w) |
4817 | infy_del (EV_P_ ev_stat *w) |
3971 | { |
4818 | { |
3972 | int slot; |
4819 | int slot; |
3973 | int wd = w->wd; |
4820 | int wd = w->wd; |
3974 | |
4821 | |
… | |
… | |
3981 | |
4828 | |
3982 | /* remove this watcher, if others are watching it, they will rearm */ |
4829 | /* remove this watcher, if others are watching it, they will rearm */ |
3983 | inotify_rm_watch (fs_fd, wd); |
4830 | inotify_rm_watch (fs_fd, wd); |
3984 | } |
4831 | } |
3985 | |
4832 | |
3986 | static void noinline |
4833 | ecb_noinline |
|
|
4834 | static void |
3987 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4835 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3988 | { |
4836 | { |
3989 | if (slot < 0) |
4837 | if (slot < 0) |
3990 | /* overflow, need to check for all hash slots */ |
4838 | /* overflow, need to check for all hash slots */ |
3991 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4839 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4027 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4875 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4028 | ofs += sizeof (struct inotify_event) + ev->len; |
4876 | ofs += sizeof (struct inotify_event) + ev->len; |
4029 | } |
4877 | } |
4030 | } |
4878 | } |
4031 | |
4879 | |
4032 | inline_size void ecb_cold |
4880 | inline_size ecb_cold |
|
|
4881 | void |
4033 | ev_check_2625 (EV_P) |
4882 | ev_check_2625 (EV_P) |
4034 | { |
4883 | { |
4035 | /* kernels < 2.6.25 are borked |
4884 | /* kernels < 2.6.25 are borked |
4036 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4885 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4037 | */ |
4886 | */ |
… | |
… | |
4127 | #else |
4976 | #else |
4128 | # define EV_LSTAT(p,b) lstat (p, b) |
4977 | # define EV_LSTAT(p,b) lstat (p, b) |
4129 | #endif |
4978 | #endif |
4130 | |
4979 | |
4131 | void |
4980 | void |
4132 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4981 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4133 | { |
4982 | { |
4134 | if (lstat (w->path, &w->attr) < 0) |
4983 | if (lstat (w->path, &w->attr) < 0) |
4135 | w->attr.st_nlink = 0; |
4984 | w->attr.st_nlink = 0; |
4136 | else if (!w->attr.st_nlink) |
4985 | else if (!w->attr.st_nlink) |
4137 | w->attr.st_nlink = 1; |
4986 | w->attr.st_nlink = 1; |
4138 | } |
4987 | } |
4139 | |
4988 | |
4140 | static void noinline |
4989 | ecb_noinline |
|
|
4990 | static void |
4141 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4991 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4142 | { |
4992 | { |
4143 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4993 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4144 | |
4994 | |
4145 | ev_statdata prev = w->attr; |
4995 | ev_statdata prev = w->attr; |
… | |
… | |
4176 | ev_feed_event (EV_A_ w, EV_STAT); |
5026 | ev_feed_event (EV_A_ w, EV_STAT); |
4177 | } |
5027 | } |
4178 | } |
5028 | } |
4179 | |
5029 | |
4180 | void |
5030 | void |
4181 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
5031 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4182 | { |
5032 | { |
4183 | if (expect_false (ev_is_active (w))) |
5033 | if (ecb_expect_false (ev_is_active (w))) |
4184 | return; |
5034 | return; |
4185 | |
5035 | |
4186 | ev_stat_stat (EV_A_ w); |
5036 | ev_stat_stat (EV_A_ w); |
4187 | |
5037 | |
4188 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
5038 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4207 | |
5057 | |
4208 | EV_FREQUENT_CHECK; |
5058 | EV_FREQUENT_CHECK; |
4209 | } |
5059 | } |
4210 | |
5060 | |
4211 | void |
5061 | void |
4212 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
5062 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4213 | { |
5063 | { |
4214 | clear_pending (EV_A_ (W)w); |
5064 | clear_pending (EV_A_ (W)w); |
4215 | if (expect_false (!ev_is_active (w))) |
5065 | if (ecb_expect_false (!ev_is_active (w))) |
4216 | return; |
5066 | return; |
4217 | |
5067 | |
4218 | EV_FREQUENT_CHECK; |
5068 | EV_FREQUENT_CHECK; |
4219 | |
5069 | |
4220 | #if EV_USE_INOTIFY |
5070 | #if EV_USE_INOTIFY |
… | |
… | |
4233 | } |
5083 | } |
4234 | #endif |
5084 | #endif |
4235 | |
5085 | |
4236 | #if EV_IDLE_ENABLE |
5086 | #if EV_IDLE_ENABLE |
4237 | void |
5087 | void |
4238 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
5088 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4239 | { |
5089 | { |
4240 | if (expect_false (ev_is_active (w))) |
5090 | if (ecb_expect_false (ev_is_active (w))) |
4241 | return; |
5091 | return; |
4242 | |
5092 | |
4243 | pri_adjust (EV_A_ (W)w); |
5093 | pri_adjust (EV_A_ (W)w); |
4244 | |
5094 | |
4245 | EV_FREQUENT_CHECK; |
5095 | EV_FREQUENT_CHECK; |
… | |
… | |
4248 | int active = ++idlecnt [ABSPRI (w)]; |
5098 | int active = ++idlecnt [ABSPRI (w)]; |
4249 | |
5099 | |
4250 | ++idleall; |
5100 | ++idleall; |
4251 | ev_start (EV_A_ (W)w, active); |
5101 | ev_start (EV_A_ (W)w, active); |
4252 | |
5102 | |
4253 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
5103 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4254 | idles [ABSPRI (w)][active - 1] = w; |
5104 | idles [ABSPRI (w)][active - 1] = w; |
4255 | } |
5105 | } |
4256 | |
5106 | |
4257 | EV_FREQUENT_CHECK; |
5107 | EV_FREQUENT_CHECK; |
4258 | } |
5108 | } |
4259 | |
5109 | |
4260 | void |
5110 | void |
4261 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
5111 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4262 | { |
5112 | { |
4263 | clear_pending (EV_A_ (W)w); |
5113 | clear_pending (EV_A_ (W)w); |
4264 | if (expect_false (!ev_is_active (w))) |
5114 | if (ecb_expect_false (!ev_is_active (w))) |
4265 | return; |
5115 | return; |
4266 | |
5116 | |
4267 | EV_FREQUENT_CHECK; |
5117 | EV_FREQUENT_CHECK; |
4268 | |
5118 | |
4269 | { |
5119 | { |
… | |
… | |
4280 | } |
5130 | } |
4281 | #endif |
5131 | #endif |
4282 | |
5132 | |
4283 | #if EV_PREPARE_ENABLE |
5133 | #if EV_PREPARE_ENABLE |
4284 | void |
5134 | void |
4285 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
5135 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4286 | { |
5136 | { |
4287 | if (expect_false (ev_is_active (w))) |
5137 | if (ecb_expect_false (ev_is_active (w))) |
4288 | return; |
5138 | return; |
4289 | |
5139 | |
4290 | EV_FREQUENT_CHECK; |
5140 | EV_FREQUENT_CHECK; |
4291 | |
5141 | |
4292 | ev_start (EV_A_ (W)w, ++preparecnt); |
5142 | ev_start (EV_A_ (W)w, ++preparecnt); |
4293 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
5143 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4294 | prepares [preparecnt - 1] = w; |
5144 | prepares [preparecnt - 1] = w; |
4295 | |
5145 | |
4296 | EV_FREQUENT_CHECK; |
5146 | EV_FREQUENT_CHECK; |
4297 | } |
5147 | } |
4298 | |
5148 | |
4299 | void |
5149 | void |
4300 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
5150 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4301 | { |
5151 | { |
4302 | clear_pending (EV_A_ (W)w); |
5152 | clear_pending (EV_A_ (W)w); |
4303 | if (expect_false (!ev_is_active (w))) |
5153 | if (ecb_expect_false (!ev_is_active (w))) |
4304 | return; |
5154 | return; |
4305 | |
5155 | |
4306 | EV_FREQUENT_CHECK; |
5156 | EV_FREQUENT_CHECK; |
4307 | |
5157 | |
4308 | { |
5158 | { |
… | |
… | |
4318 | } |
5168 | } |
4319 | #endif |
5169 | #endif |
4320 | |
5170 | |
4321 | #if EV_CHECK_ENABLE |
5171 | #if EV_CHECK_ENABLE |
4322 | void |
5172 | void |
4323 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
5173 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4324 | { |
5174 | { |
4325 | if (expect_false (ev_is_active (w))) |
5175 | if (ecb_expect_false (ev_is_active (w))) |
4326 | return; |
5176 | return; |
4327 | |
5177 | |
4328 | EV_FREQUENT_CHECK; |
5178 | EV_FREQUENT_CHECK; |
4329 | |
5179 | |
4330 | ev_start (EV_A_ (W)w, ++checkcnt); |
5180 | ev_start (EV_A_ (W)w, ++checkcnt); |
4331 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5181 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4332 | checks [checkcnt - 1] = w; |
5182 | checks [checkcnt - 1] = w; |
4333 | |
5183 | |
4334 | EV_FREQUENT_CHECK; |
5184 | EV_FREQUENT_CHECK; |
4335 | } |
5185 | } |
4336 | |
5186 | |
4337 | void |
5187 | void |
4338 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
5188 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4339 | { |
5189 | { |
4340 | clear_pending (EV_A_ (W)w); |
5190 | clear_pending (EV_A_ (W)w); |
4341 | if (expect_false (!ev_is_active (w))) |
5191 | if (ecb_expect_false (!ev_is_active (w))) |
4342 | return; |
5192 | return; |
4343 | |
5193 | |
4344 | EV_FREQUENT_CHECK; |
5194 | EV_FREQUENT_CHECK; |
4345 | |
5195 | |
4346 | { |
5196 | { |
… | |
… | |
4355 | EV_FREQUENT_CHECK; |
5205 | EV_FREQUENT_CHECK; |
4356 | } |
5206 | } |
4357 | #endif |
5207 | #endif |
4358 | |
5208 | |
4359 | #if EV_EMBED_ENABLE |
5209 | #if EV_EMBED_ENABLE |
4360 | void noinline |
5210 | ecb_noinline |
|
|
5211 | void |
4361 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
5212 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4362 | { |
5213 | { |
4363 | ev_run (w->other, EVRUN_NOWAIT); |
5214 | ev_run (w->other, EVRUN_NOWAIT); |
4364 | } |
5215 | } |
4365 | |
5216 | |
4366 | static void |
5217 | static void |
… | |
… | |
4388 | ev_run (EV_A_ EVRUN_NOWAIT); |
5239 | ev_run (EV_A_ EVRUN_NOWAIT); |
4389 | } |
5240 | } |
4390 | } |
5241 | } |
4391 | } |
5242 | } |
4392 | |
5243 | |
|
|
5244 | #if EV_FORK_ENABLE |
4393 | static void |
5245 | static void |
4394 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5246 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4395 | { |
5247 | { |
4396 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5248 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4397 | |
5249 | |
… | |
… | |
4404 | ev_run (EV_A_ EVRUN_NOWAIT); |
5256 | ev_run (EV_A_ EVRUN_NOWAIT); |
4405 | } |
5257 | } |
4406 | |
5258 | |
4407 | ev_embed_start (EV_A_ w); |
5259 | ev_embed_start (EV_A_ w); |
4408 | } |
5260 | } |
|
|
5261 | #endif |
4409 | |
5262 | |
4410 | #if 0 |
5263 | #if 0 |
4411 | static void |
5264 | static void |
4412 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5265 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4413 | { |
5266 | { |
4414 | ev_idle_stop (EV_A_ idle); |
5267 | ev_idle_stop (EV_A_ idle); |
4415 | } |
5268 | } |
4416 | #endif |
5269 | #endif |
4417 | |
5270 | |
4418 | void |
5271 | void |
4419 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
5272 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4420 | { |
5273 | { |
4421 | if (expect_false (ev_is_active (w))) |
5274 | if (ecb_expect_false (ev_is_active (w))) |
4422 | return; |
5275 | return; |
4423 | |
5276 | |
4424 | { |
5277 | { |
4425 | EV_P = w->other; |
5278 | EV_P = w->other; |
4426 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5279 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4434 | |
5287 | |
4435 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5288 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4436 | ev_set_priority (&w->prepare, EV_MINPRI); |
5289 | ev_set_priority (&w->prepare, EV_MINPRI); |
4437 | ev_prepare_start (EV_A_ &w->prepare); |
5290 | ev_prepare_start (EV_A_ &w->prepare); |
4438 | |
5291 | |
|
|
5292 | #if EV_FORK_ENABLE |
4439 | ev_fork_init (&w->fork, embed_fork_cb); |
5293 | ev_fork_init (&w->fork, embed_fork_cb); |
4440 | ev_fork_start (EV_A_ &w->fork); |
5294 | ev_fork_start (EV_A_ &w->fork); |
|
|
5295 | #endif |
4441 | |
5296 | |
4442 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5297 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4443 | |
5298 | |
4444 | ev_start (EV_A_ (W)w, 1); |
5299 | ev_start (EV_A_ (W)w, 1); |
4445 | |
5300 | |
4446 | EV_FREQUENT_CHECK; |
5301 | EV_FREQUENT_CHECK; |
4447 | } |
5302 | } |
4448 | |
5303 | |
4449 | void |
5304 | void |
4450 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
5305 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4451 | { |
5306 | { |
4452 | clear_pending (EV_A_ (W)w); |
5307 | clear_pending (EV_A_ (W)w); |
4453 | if (expect_false (!ev_is_active (w))) |
5308 | if (ecb_expect_false (!ev_is_active (w))) |
4454 | return; |
5309 | return; |
4455 | |
5310 | |
4456 | EV_FREQUENT_CHECK; |
5311 | EV_FREQUENT_CHECK; |
4457 | |
5312 | |
4458 | ev_io_stop (EV_A_ &w->io); |
5313 | ev_io_stop (EV_A_ &w->io); |
4459 | ev_prepare_stop (EV_A_ &w->prepare); |
5314 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5315 | #if EV_FORK_ENABLE |
4460 | ev_fork_stop (EV_A_ &w->fork); |
5316 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5317 | #endif |
4461 | |
5318 | |
4462 | ev_stop (EV_A_ (W)w); |
5319 | ev_stop (EV_A_ (W)w); |
4463 | |
5320 | |
4464 | EV_FREQUENT_CHECK; |
5321 | EV_FREQUENT_CHECK; |
4465 | } |
5322 | } |
4466 | #endif |
5323 | #endif |
4467 | |
5324 | |
4468 | #if EV_FORK_ENABLE |
5325 | #if EV_FORK_ENABLE |
4469 | void |
5326 | void |
4470 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
5327 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4471 | { |
5328 | { |
4472 | if (expect_false (ev_is_active (w))) |
5329 | if (ecb_expect_false (ev_is_active (w))) |
4473 | return; |
5330 | return; |
4474 | |
5331 | |
4475 | EV_FREQUENT_CHECK; |
5332 | EV_FREQUENT_CHECK; |
4476 | |
5333 | |
4477 | ev_start (EV_A_ (W)w, ++forkcnt); |
5334 | ev_start (EV_A_ (W)w, ++forkcnt); |
4478 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5335 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4479 | forks [forkcnt - 1] = w; |
5336 | forks [forkcnt - 1] = w; |
4480 | |
5337 | |
4481 | EV_FREQUENT_CHECK; |
5338 | EV_FREQUENT_CHECK; |
4482 | } |
5339 | } |
4483 | |
5340 | |
4484 | void |
5341 | void |
4485 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
5342 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4486 | { |
5343 | { |
4487 | clear_pending (EV_A_ (W)w); |
5344 | clear_pending (EV_A_ (W)w); |
4488 | if (expect_false (!ev_is_active (w))) |
5345 | if (ecb_expect_false (!ev_is_active (w))) |
4489 | return; |
5346 | return; |
4490 | |
5347 | |
4491 | EV_FREQUENT_CHECK; |
5348 | EV_FREQUENT_CHECK; |
4492 | |
5349 | |
4493 | { |
5350 | { |
… | |
… | |
4503 | } |
5360 | } |
4504 | #endif |
5361 | #endif |
4505 | |
5362 | |
4506 | #if EV_CLEANUP_ENABLE |
5363 | #if EV_CLEANUP_ENABLE |
4507 | void |
5364 | void |
4508 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
5365 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4509 | { |
5366 | { |
4510 | if (expect_false (ev_is_active (w))) |
5367 | if (ecb_expect_false (ev_is_active (w))) |
4511 | return; |
5368 | return; |
4512 | |
5369 | |
4513 | EV_FREQUENT_CHECK; |
5370 | EV_FREQUENT_CHECK; |
4514 | |
5371 | |
4515 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5372 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4516 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5373 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4517 | cleanups [cleanupcnt - 1] = w; |
5374 | cleanups [cleanupcnt - 1] = w; |
4518 | |
5375 | |
4519 | /* cleanup watchers should never keep a refcount on the loop */ |
5376 | /* cleanup watchers should never keep a refcount on the loop */ |
4520 | ev_unref (EV_A); |
5377 | ev_unref (EV_A); |
4521 | EV_FREQUENT_CHECK; |
5378 | EV_FREQUENT_CHECK; |
4522 | } |
5379 | } |
4523 | |
5380 | |
4524 | void |
5381 | void |
4525 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
5382 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4526 | { |
5383 | { |
4527 | clear_pending (EV_A_ (W)w); |
5384 | clear_pending (EV_A_ (W)w); |
4528 | if (expect_false (!ev_is_active (w))) |
5385 | if (ecb_expect_false (!ev_is_active (w))) |
4529 | return; |
5386 | return; |
4530 | |
5387 | |
4531 | EV_FREQUENT_CHECK; |
5388 | EV_FREQUENT_CHECK; |
4532 | ev_ref (EV_A); |
5389 | ev_ref (EV_A); |
4533 | |
5390 | |
… | |
… | |
4544 | } |
5401 | } |
4545 | #endif |
5402 | #endif |
4546 | |
5403 | |
4547 | #if EV_ASYNC_ENABLE |
5404 | #if EV_ASYNC_ENABLE |
4548 | void |
5405 | void |
4549 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
5406 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4550 | { |
5407 | { |
4551 | if (expect_false (ev_is_active (w))) |
5408 | if (ecb_expect_false (ev_is_active (w))) |
4552 | return; |
5409 | return; |
4553 | |
5410 | |
4554 | w->sent = 0; |
5411 | w->sent = 0; |
4555 | |
5412 | |
4556 | evpipe_init (EV_A); |
5413 | evpipe_init (EV_A); |
4557 | |
5414 | |
4558 | EV_FREQUENT_CHECK; |
5415 | EV_FREQUENT_CHECK; |
4559 | |
5416 | |
4560 | ev_start (EV_A_ (W)w, ++asynccnt); |
5417 | ev_start (EV_A_ (W)w, ++asynccnt); |
4561 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5418 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4562 | asyncs [asynccnt - 1] = w; |
5419 | asyncs [asynccnt - 1] = w; |
4563 | |
5420 | |
4564 | EV_FREQUENT_CHECK; |
5421 | EV_FREQUENT_CHECK; |
4565 | } |
5422 | } |
4566 | |
5423 | |
4567 | void |
5424 | void |
4568 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
5425 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4569 | { |
5426 | { |
4570 | clear_pending (EV_A_ (W)w); |
5427 | clear_pending (EV_A_ (W)w); |
4571 | if (expect_false (!ev_is_active (w))) |
5428 | if (ecb_expect_false (!ev_is_active (w))) |
4572 | return; |
5429 | return; |
4573 | |
5430 | |
4574 | EV_FREQUENT_CHECK; |
5431 | EV_FREQUENT_CHECK; |
4575 | |
5432 | |
4576 | { |
5433 | { |
… | |
… | |
4584 | |
5441 | |
4585 | EV_FREQUENT_CHECK; |
5442 | EV_FREQUENT_CHECK; |
4586 | } |
5443 | } |
4587 | |
5444 | |
4588 | void |
5445 | void |
4589 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5446 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4590 | { |
5447 | { |
4591 | w->sent = 1; |
5448 | w->sent = 1; |
4592 | evpipe_write (EV_A_ &async_pending); |
5449 | evpipe_write (EV_A_ &async_pending); |
4593 | } |
5450 | } |
4594 | #endif |
5451 | #endif |
… | |
… | |
4631 | |
5488 | |
4632 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5489 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4633 | } |
5490 | } |
4634 | |
5491 | |
4635 | void |
5492 | void |
4636 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5493 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4637 | { |
5494 | { |
4638 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5495 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4639 | |
|
|
4640 | if (expect_false (!once)) |
|
|
4641 | { |
|
|
4642 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4643 | return; |
|
|
4644 | } |
|
|
4645 | |
5496 | |
4646 | once->cb = cb; |
5497 | once->cb = cb; |
4647 | once->arg = arg; |
5498 | once->arg = arg; |
4648 | |
5499 | |
4649 | ev_init (&once->io, once_cb_io); |
5500 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4662 | } |
5513 | } |
4663 | |
5514 | |
4664 | /*****************************************************************************/ |
5515 | /*****************************************************************************/ |
4665 | |
5516 | |
4666 | #if EV_WALK_ENABLE |
5517 | #if EV_WALK_ENABLE |
4667 | void ecb_cold |
5518 | ecb_cold |
|
|
5519 | void |
4668 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5520 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4669 | { |
5521 | { |
4670 | int i, j; |
5522 | int i, j; |
4671 | ev_watcher_list *wl, *wn; |
5523 | ev_watcher_list *wl, *wn; |
4672 | |
5524 | |
4673 | if (types & (EV_IO | EV_EMBED)) |
5525 | if (types & (EV_IO | EV_EMBED)) |