1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
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51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
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53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
115 | # else |
115 | # else |
116 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
119 | |
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120 | # if HAVE_LINUX_AIO_ABI_H |
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121 | # ifndef EV_USE_LINUXAIO |
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122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
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123 | # endif |
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124 | # else |
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125 | # undef EV_USE_LINUXAIO |
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126 | # define EV_USE_LINUXAIO 0 |
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127 | # endif |
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128 | |
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129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
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130 | # ifndef EV_USE_IOURING |
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131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
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132 | # endif |
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133 | # else |
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134 | # undef EV_USE_IOURING |
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135 | # define EV_USE_IOURING 0 |
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136 | # endif |
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137 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
141 | # endif |
124 | # else |
142 | # else |
… | |
… | |
159 | # endif |
177 | # endif |
160 | # else |
178 | # else |
161 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
162 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
163 | # endif |
181 | # endif |
164 | |
182 | |
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183 | # if HAVE_SYS_TIMERFD_H |
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184 | # ifndef EV_USE_TIMERFD |
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185 | # define EV_USE_TIMERFD EV_FEATURE_OS |
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186 | # endif |
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187 | # else |
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188 | # undef EV_USE_TIMERFD |
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189 | # define EV_USE_TIMERFD 0 |
165 | #endif |
190 | # endif |
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191 | |
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192 | #endif |
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193 | |
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194 | /* OS X, in its infinite idiocy, actually HARDCODES |
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195 | * a limit of 1024 into their select. Where people have brains, |
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196 | * OS X engineers apparently have a vacuum. Or maybe they were |
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197 | * ordered to have a vacuum, or they do anything for money. |
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198 | * This might help. Or not. |
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199 | * Note that this must be defined early, as other include files |
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200 | * will rely on this define as well. |
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201 | */ |
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202 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
203 | |
167 | #include <stdlib.h> |
204 | #include <stdlib.h> |
168 | #include <string.h> |
205 | #include <string.h> |
169 | #include <fcntl.h> |
206 | #include <fcntl.h> |
170 | #include <stddef.h> |
207 | #include <stddef.h> |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
245 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
246 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
247 | # endif |
211 | # undef EV_AVOID_STDIO |
248 | # undef EV_AVOID_STDIO |
212 | #endif |
249 | #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 | |
250 | |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
251 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
223 | |
252 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
253 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
254 | #if defined EV_NSIG |
… | |
… | |
256 | # else |
285 | # else |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
286 | # define EV_USE_CLOCK_SYSCALL 0 |
258 | # endif |
287 | # endif |
259 | #endif |
288 | #endif |
260 | |
289 | |
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290 | #if !(_POSIX_TIMERS > 0) |
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291 | # ifndef EV_USE_MONOTONIC |
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292 | # define EV_USE_MONOTONIC 0 |
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293 | # endif |
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294 | # ifndef EV_USE_REALTIME |
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295 | # define EV_USE_REALTIME 0 |
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296 | # endif |
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297 | #endif |
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298 | |
261 | #ifndef EV_USE_MONOTONIC |
299 | #ifndef EV_USE_MONOTONIC |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
300 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
301 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
264 | # else |
302 | # else |
265 | # define EV_USE_MONOTONIC 0 |
303 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
304 | |
342 | |
305 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
306 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
307 | #endif |
345 | #endif |
308 | |
346 | |
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347 | #ifndef EV_USE_LINUXAIO |
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348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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349 | # define EV_USE_LINUXAIO 1 |
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350 | # else |
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351 | # define EV_USE_LINUXAIO 0 |
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352 | # endif |
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353 | #endif |
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354 | |
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355 | #ifndef EV_USE_IOURING |
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356 | # if __linux /* later checks might disable again */ |
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357 | # define EV_USE_IOURING 1 |
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358 | # else |
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359 | # define EV_USE_IOURING 0 |
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360 | # endif |
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361 | #endif |
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362 | |
309 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
311 | # define EV_USE_INOTIFY EV_FEATURE_OS |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
312 | # else |
366 | # else |
313 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
… | |
… | |
336 | # else |
390 | # else |
337 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
338 | # endif |
392 | # endif |
339 | #endif |
393 | #endif |
340 | |
394 | |
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395 | #ifndef EV_USE_TIMERFD |
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396 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
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397 | # define EV_USE_TIMERFD EV_FEATURE_OS |
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398 | # else |
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399 | # define EV_USE_TIMERFD 0 |
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400 | # endif |
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401 | #endif |
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402 | |
341 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
342 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
343 | # define EV_USE_4HEAP 1 |
405 | # define EV_USE_4HEAP 1 |
344 | # define EV_HEAP_CACHE_AT 1 |
406 | # define EV_HEAP_CACHE_AT 1 |
345 | #endif |
407 | #endif |
… | |
… | |
354 | |
416 | |
355 | #ifndef EV_HEAP_CACHE_AT |
417 | #ifndef EV_HEAP_CACHE_AT |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
418 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
357 | #endif |
419 | #endif |
358 | |
420 | |
359 | #ifdef ANDROID |
421 | #ifdef __ANDROID__ |
360 | /* supposedly, android doesn't typedef fd_mask */ |
422 | /* supposedly, android doesn't typedef fd_mask */ |
361 | # undef EV_USE_SELECT |
423 | # undef EV_USE_SELECT |
362 | # define EV_USE_SELECT 0 |
424 | # define EV_USE_SELECT 0 |
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
425 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
364 | # undef EV_USE_CLOCK_SYSCALL |
426 | # undef EV_USE_CLOCK_SYSCALL |
… | |
… | |
378 | # include <sys/syscall.h> |
440 | # include <sys/syscall.h> |
379 | # ifdef SYS_clock_gettime |
441 | # ifdef SYS_clock_gettime |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
381 | # undef EV_USE_MONOTONIC |
443 | # undef EV_USE_MONOTONIC |
382 | # define EV_USE_MONOTONIC 1 |
444 | # define EV_USE_MONOTONIC 1 |
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445 | # define EV_NEED_SYSCALL 1 |
383 | # else |
446 | # else |
384 | # undef EV_USE_CLOCK_SYSCALL |
447 | # undef EV_USE_CLOCK_SYSCALL |
385 | # define EV_USE_CLOCK_SYSCALL 0 |
448 | # define EV_USE_CLOCK_SYSCALL 0 |
386 | # endif |
449 | # endif |
387 | #endif |
450 | #endif |
… | |
… | |
401 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
402 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
403 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
404 | #endif |
467 | #endif |
405 | |
468 | |
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469 | #if __linux && EV_USE_IOURING |
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470 | # include <linux/version.h> |
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471 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
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472 | # undef EV_USE_IOURING |
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473 | # define EV_USE_IOURING 0 |
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474 | # endif |
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475 | #endif |
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476 | |
406 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
408 | # if !defined _WIN32 && !defined __hpux |
479 | # if !defined _WIN32 && !defined __hpux |
409 | # include <sys/select.h> |
480 | # include <sys/select.h> |
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481 | # endif |
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482 | #endif |
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483 | |
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484 | #if EV_USE_LINUXAIO |
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485 | # include <sys/syscall.h> |
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486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
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487 | # define EV_NEED_SYSCALL 1 |
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488 | # else |
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489 | # undef EV_USE_LINUXAIO |
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490 | # define EV_USE_LINUXAIO 0 |
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491 | # endif |
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492 | #endif |
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493 | |
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494 | #if EV_USE_IOURING |
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495 | # include <sys/syscall.h> |
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496 | # if !SYS_io_uring_setup && __linux && !__alpha |
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497 | # define SYS_io_uring_setup 425 |
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498 | # define SYS_io_uring_enter 426 |
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499 | # define SYS_io_uring_wregister 427 |
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500 | # endif |
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501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
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502 | # define EV_NEED_SYSCALL 1 |
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503 | # else |
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504 | # undef EV_USE_IOURING |
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505 | # define EV_USE_IOURING 0 |
410 | # endif |
506 | # endif |
411 | #endif |
507 | #endif |
412 | |
508 | |
413 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
414 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
… | |
… | |
419 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
420 | # endif |
516 | # endif |
421 | #endif |
517 | #endif |
422 | |
518 | |
423 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
424 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
520 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
425 | # include <stdint.h> |
521 | # include <stdint.h> |
426 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
427 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
428 | # endif |
524 | # endif |
429 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
435 | # endif |
531 | # endif |
436 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
437 | #endif |
533 | #endif |
438 | |
534 | |
439 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
440 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
536 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
441 | # include <stdint.h> |
537 | # include <stdint.h> |
442 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
443 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
444 | # endif |
540 | # endif |
445 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
447 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
448 | # else |
544 | # else |
449 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
450 | # endif |
546 | # endif |
451 | # endif |
547 | # endif |
452 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
548 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
453 | |
549 | |
454 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
455 | { |
551 | { |
456 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
457 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
458 | }; |
554 | }; |
459 | #endif |
555 | #endif |
460 | |
556 | |
461 | /**/ |
557 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
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558 | #if EV_USE_TIMERFD |
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559 | # include <sys/timerfd.h> |
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560 | /* timerfd is only used for periodics */ |
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561 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
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562 | # undef EV_USE_TIMERFD |
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563 | # define EV_USE_TIMERFD 0 |
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564 | # endif |
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565 | #endif |
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566 | |
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567 | /*****************************************************************************/ |
462 | |
568 | |
463 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
464 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
465 | #else |
571 | #else |
466 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
471 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
472 | */ |
578 | */ |
473 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
474 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
475 | |
581 | |
476 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
582 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
477 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
478 | |
584 | |
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585 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
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586 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
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587 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
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588 | #define EV_TSTAMP_HUGE \ |
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589 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
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590 | : 0 < (time_t)4294967295 ? 4294967295. \ |
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591 | : 2147483647.) \ |
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592 | |
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593 | #ifndef EV_TS_CONST |
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594 | # define EV_TS_CONST(nv) nv |
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595 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
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596 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
479 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
597 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
480 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
598 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
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599 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
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600 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
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601 | #endif |
481 | |
602 | |
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
483 | /* ECB.H BEGIN */ |
604 | /* ECB.H BEGIN */ |
484 | /* |
605 | /* |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
606 | * libecb - http://software.schmorp.de/pkg/libecb |
486 | * |
607 | * |
487 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
608 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
609 | * Copyright (©) 2011 Emanuele Giaquinta |
489 | * All rights reserved. |
610 | * All rights reserved. |
490 | * |
611 | * |
491 | * Redistribution and use in source and binary forms, with or without modifica- |
612 | * Redistribution and use in source and binary forms, with or without modifica- |
492 | * tion, are permitted provided that the following conditions are met: |
613 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
627 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
628 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
629 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
509 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
630 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
631 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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632 | * |
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633 | * Alternatively, the contents of this file may be used under the terms of |
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634 | * the GNU General Public License ("GPL") version 2 or any later version, |
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635 | * in which case the provisions of the GPL are applicable instead of |
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636 | * the above. If you wish to allow the use of your version of this file |
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|
637 | * only under the terms of the GPL and not to allow others to use your |
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|
638 | * version of this file under the BSD license, indicate your decision |
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639 | * by deleting the provisions above and replace them with the notice |
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640 | * and other provisions required by the GPL. If you do not delete the |
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641 | * provisions above, a recipient may use your version of this file under |
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|
642 | * either the BSD or the GPL. |
511 | */ |
643 | */ |
512 | |
644 | |
513 | #ifndef ECB_H |
645 | #ifndef ECB_H |
514 | #define ECB_H |
646 | #define ECB_H |
515 | |
647 | |
516 | /* 16 bits major, 16 bits minor */ |
648 | /* 16 bits major, 16 bits minor */ |
517 | #define ECB_VERSION 0x00010003 |
649 | #define ECB_VERSION 0x00010006 |
518 | |
650 | |
519 | #ifdef _WIN32 |
651 | #ifdef _WIN32 |
520 | typedef signed char int8_t; |
652 | typedef signed char int8_t; |
521 | typedef unsigned char uint8_t; |
653 | typedef unsigned char uint8_t; |
522 | typedef signed short int16_t; |
654 | typedef signed short int16_t; |
… | |
… | |
539 | typedef uint32_t uintptr_t; |
671 | typedef uint32_t uintptr_t; |
540 | typedef int32_t intptr_t; |
672 | typedef int32_t intptr_t; |
541 | #endif |
673 | #endif |
542 | #else |
674 | #else |
543 | #include <inttypes.h> |
675 | #include <inttypes.h> |
544 | #if UINTMAX_MAX > 0xffffffffU |
676 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
545 | #define ECB_PTRSIZE 8 |
677 | #define ECB_PTRSIZE 8 |
546 | #else |
678 | #else |
547 | #define ECB_PTRSIZE 4 |
679 | #define ECB_PTRSIZE 4 |
548 | #endif |
680 | #endif |
549 | #endif |
681 | #endif |
550 | |
682 | |
|
|
683 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
684 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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|
685 | |
551 | /* work around x32 idiocy by defining proper macros */ |
686 | /* work around x32 idiocy by defining proper macros */ |
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
687 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
553 | #if _ILP32 |
688 | #if _ILP32 |
554 | #define ECB_AMD64_X32 1 |
689 | #define ECB_AMD64_X32 1 |
555 | #else |
690 | #else |
556 | #define ECB_AMD64 1 |
691 | #define ECB_AMD64 1 |
557 | #endif |
692 | #endif |
… | |
… | |
562 | * causing enormous grief in return for some better fake benchmark numbers. |
697 | * causing enormous grief in return for some better fake benchmark numbers. |
563 | * or so. |
698 | * or so. |
564 | * we try to detect these and simply assume they are not gcc - if they have |
699 | * we try to detect these and simply assume they are not gcc - if they have |
565 | * an issue with that they should have done it right in the first place. |
700 | * an issue with that they should have done it right in the first place. |
566 | */ |
701 | */ |
567 | #ifndef ECB_GCC_VERSION |
|
|
568 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
702 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
569 | #define ECB_GCC_VERSION(major,minor) 0 |
703 | #define ECB_GCC_VERSION(major,minor) 0 |
570 | #else |
704 | #else |
571 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
705 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
572 | #endif |
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
709 | |
|
|
710 | #if __clang__ && defined __has_builtin |
|
|
711 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
712 | #else |
|
|
713 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
714 | #endif |
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|
715 | |
|
|
716 | #if __clang__ && defined __has_extension |
|
|
717 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
718 | #else |
|
|
719 | #define ECB_CLANG_EXTENSION(x) 0 |
573 | #endif |
720 | #endif |
574 | |
721 | |
575 | #define ECB_CPP (__cplusplus+0) |
722 | #define ECB_CPP (__cplusplus+0) |
576 | #define ECB_CPP11 (__cplusplus >= 201103L) |
723 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
724 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
725 | #define ECB_CPP17 (__cplusplus >= 201703L) |
577 | |
726 | |
578 | #if ECB_CPP |
727 | #if ECB_CPP |
579 | #define ECB_C 0 |
728 | #define ECB_C 0 |
580 | #define ECB_STDC_VERSION 0 |
729 | #define ECB_STDC_VERSION 0 |
581 | #else |
730 | #else |
… | |
… | |
583 | #define ECB_STDC_VERSION __STDC_VERSION__ |
732 | #define ECB_STDC_VERSION __STDC_VERSION__ |
584 | #endif |
733 | #endif |
585 | |
734 | |
586 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
735 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
587 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
736 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
737 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
588 | |
738 | |
589 | #if ECB_CPP |
739 | #if ECB_CPP |
590 | #define ECB_EXTERN_C extern "C" |
740 | #define ECB_EXTERN_C extern "C" |
591 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
741 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
592 | #define ECB_EXTERN_C_END } |
742 | #define ECB_EXTERN_C_END } |
… | |
… | |
607 | |
757 | |
608 | #if ECB_NO_SMP |
758 | #if ECB_NO_SMP |
609 | #define ECB_MEMORY_FENCE do { } while (0) |
759 | #define ECB_MEMORY_FENCE do { } while (0) |
610 | #endif |
760 | #endif |
611 | |
761 | |
|
|
762 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
763 | #if __xlC__ && ECB_CPP |
|
|
764 | #include <builtins.h> |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #if 1400 <= _MSC_VER |
|
|
768 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
769 | #endif |
|
|
770 | |
612 | #ifndef ECB_MEMORY_FENCE |
771 | #ifndef ECB_MEMORY_FENCE |
613 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
772 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
773 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
614 | #if __i386 || __i386__ |
774 | #if __i386 || __i386__ |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
616 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
776 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
617 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
777 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
618 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
778 | #elif ECB_GCC_AMD64 |
619 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
779 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
620 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
780 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
621 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
781 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
622 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
782 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
783 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
784 | #elif defined __ARM_ARCH_2__ \ |
|
|
785 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
786 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
787 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
788 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
789 | || defined __ARM_ARCH_5TEJ__ |
|
|
790 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
624 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
791 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
625 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
792 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
793 | || defined __ARM_ARCH_6T2__ |
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
794 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
627 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
795 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
628 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
796 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
629 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
797 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
630 | #elif __aarch64__ |
798 | #elif __aarch64__ |
631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
799 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
632 | #elif (__sparc || __sparc__) && !__sparcv8 |
800 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
801 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
634 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
802 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
635 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
803 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
636 | #elif defined __s390__ || defined __s390x__ |
804 | #elif defined __s390__ || defined __s390x__ |
637 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
805 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
660 | #if ECB_GCC_VERSION(4,7) |
828 | #if ECB_GCC_VERSION(4,7) |
661 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
829 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
662 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
830 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
663 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
831 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
664 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
832 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
833 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
665 | |
834 | |
666 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
835 | #elif ECB_CLANG_EXTENSION(c_atomic) |
667 | * without risking compile time errors with other compilers. We *could* |
|
|
668 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
669 | * around this shit time and again. |
|
|
670 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
671 | * // see comment below (stdatomic.h) about the C11 memory model. |
836 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
672 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
837 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
673 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
838 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
674 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
839 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
675 | */ |
840 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
676 | |
841 | |
677 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
842 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
678 | #define ECB_MEMORY_FENCE __sync_synchronize () |
843 | #define ECB_MEMORY_FENCE __sync_synchronize () |
679 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
844 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
680 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
845 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
… | |
… | |
690 | #elif defined _WIN32 |
855 | #elif defined _WIN32 |
691 | #include <WinNT.h> |
856 | #include <WinNT.h> |
692 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
857 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
693 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
858 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
694 | #include <mbarrier.h> |
859 | #include <mbarrier.h> |
695 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
860 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
696 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
861 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
697 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
862 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
698 | #elif __xlC__ |
864 | #elif __xlC__ |
699 | #define ECB_MEMORY_FENCE __sync () |
865 | #define ECB_MEMORY_FENCE __sync () |
700 | #endif |
866 | #endif |
701 | #endif |
867 | #endif |
702 | |
868 | |
703 | #ifndef ECB_MEMORY_FENCE |
869 | #ifndef ECB_MEMORY_FENCE |
704 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
870 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
705 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
871 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
706 | /* not just C11 atomics and atomic accesses */ |
872 | /* not just C11 atomics and atomic accesses */ |
707 | #include <stdatomic.h> |
873 | #include <stdatomic.h> |
708 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
709 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
710 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
711 | /* for most usages, or gcc and clang have a bug */ |
|
|
712 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
713 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
714 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
715 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
716 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
874 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
875 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
717 | #endif |
877 | #endif |
718 | #endif |
878 | #endif |
719 | |
879 | |
720 | #ifndef ECB_MEMORY_FENCE |
880 | #ifndef ECB_MEMORY_FENCE |
721 | #if !ECB_AVOID_PTHREADS |
881 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
741 | |
901 | |
742 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
902 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
743 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
903 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
744 | #endif |
904 | #endif |
745 | |
905 | |
|
|
906 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
907 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
908 | #endif |
|
|
909 | |
746 | /*****************************************************************************/ |
910 | /*****************************************************************************/ |
747 | |
911 | |
748 | #if __cplusplus |
912 | #if ECB_CPP |
749 | #define ecb_inline static inline |
913 | #define ecb_inline static inline |
750 | #elif ECB_GCC_VERSION(2,5) |
914 | #elif ECB_GCC_VERSION(2,5) |
751 | #define ecb_inline static __inline__ |
915 | #define ecb_inline static __inline__ |
752 | #elif ECB_C99 |
916 | #elif ECB_C99 |
753 | #define ecb_inline static inline |
917 | #define ecb_inline static inline |
… | |
… | |
767 | |
931 | |
768 | #define ECB_CONCAT_(a, b) a ## b |
932 | #define ECB_CONCAT_(a, b) a ## b |
769 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
933 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
770 | #define ECB_STRINGIFY_(a) # a |
934 | #define ECB_STRINGIFY_(a) # a |
771 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
935 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
936 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
772 | |
937 | |
773 | #define ecb_function_ ecb_inline |
938 | #define ecb_function_ ecb_inline |
774 | |
939 | |
775 | #if ECB_GCC_VERSION(3,1) |
940 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
776 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
941 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
777 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
778 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
779 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
780 | #else |
942 | #else |
781 | #define ecb_attribute(attrlist) |
943 | #define ecb_attribute(attrlist) |
|
|
944 | #endif |
782 | |
945 | |
|
|
946 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
947 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
948 | #else |
783 | /* possible C11 impl for integral types |
949 | /* possible C11 impl for integral types |
784 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
950 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
785 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
951 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
786 | |
952 | |
787 | #define ecb_is_constant(expr) 0 |
953 | #define ecb_is_constant(expr) 0 |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
957 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
958 | #else |
788 | #define ecb_expect(expr,value) (expr) |
959 | #define ecb_expect(expr,value) (expr) |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
963 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
964 | #else |
789 | #define ecb_prefetch(addr,rw,locality) |
965 | #define ecb_prefetch(addr,rw,locality) |
790 | #endif |
966 | #endif |
791 | |
967 | |
792 | /* no emulation for ecb_decltype */ |
968 | /* no emulation for ecb_decltype */ |
793 | #if ECB_GCC_VERSION(4,5) |
969 | #if ECB_CPP11 |
|
|
970 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
971 | template<class T> struct ecb_decltype_t { typedef T type; }; |
794 | #define ecb_decltype(x) __decltype(x) |
972 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
795 | #elif ECB_GCC_VERSION(3,0) |
973 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
796 | #define ecb_decltype(x) __typeof(x) |
974 | #define ecb_decltype(x) __typeof__ (x) |
797 | #endif |
975 | #endif |
798 | |
976 | |
|
|
977 | #if _MSC_VER >= 1300 |
|
|
978 | #define ecb_deprecated __declspec (deprecated) |
|
|
979 | #else |
|
|
980 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
981 | #endif |
|
|
982 | |
|
|
983 | #if _MSC_VER >= 1500 |
|
|
984 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
985 | #elif ECB_GCC_VERSION(4,5) |
|
|
986 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
987 | #else |
|
|
988 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
989 | #endif |
|
|
990 | |
|
|
991 | #if _MSC_VER >= 1400 |
|
|
992 | #define ecb_noinline __declspec (noinline) |
|
|
993 | #else |
799 | #define ecb_noinline ecb_attribute ((__noinline__)) |
994 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
995 | #endif |
|
|
996 | |
800 | #define ecb_unused ecb_attribute ((__unused__)) |
997 | #define ecb_unused ecb_attribute ((__unused__)) |
801 | #define ecb_const ecb_attribute ((__const__)) |
998 | #define ecb_const ecb_attribute ((__const__)) |
802 | #define ecb_pure ecb_attribute ((__pure__)) |
999 | #define ecb_pure ecb_attribute ((__pure__)) |
803 | |
1000 | |
804 | #if ECB_C11 |
1001 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1002 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
805 | #define ecb_noreturn _Noreturn |
1003 | #define ecb_noreturn _Noreturn |
|
|
1004 | #elif ECB_CPP11 |
|
|
1005 | #define ecb_noreturn [[noreturn]] |
|
|
1006 | #elif _MSC_VER >= 1200 |
|
|
1007 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1008 | #define ecb_noreturn __declspec (noreturn) |
806 | #else |
1009 | #else |
807 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
1010 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
808 | #endif |
1011 | #endif |
809 | |
1012 | |
810 | #if ECB_GCC_VERSION(4,3) |
1013 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
825 | /* for compatibility to the rest of the world */ |
1028 | /* for compatibility to the rest of the world */ |
826 | #define ecb_likely(expr) ecb_expect_true (expr) |
1029 | #define ecb_likely(expr) ecb_expect_true (expr) |
827 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
1030 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
828 | |
1031 | |
829 | /* count trailing zero bits and count # of one bits */ |
1032 | /* count trailing zero bits and count # of one bits */ |
830 | #if ECB_GCC_VERSION(3,4) |
1033 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1034 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1035 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1036 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
831 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
1037 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
832 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
1038 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
833 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
1039 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
834 | #define ecb_ctz32(x) __builtin_ctz (x) |
1040 | #define ecb_ctz32(x) __builtin_ctz (x) |
835 | #define ecb_ctz64(x) __builtin_ctzll (x) |
1041 | #define ecb_ctz64(x) __builtin_ctzll (x) |
836 | #define ecb_popcount32(x) __builtin_popcount (x) |
1042 | #define ecb_popcount32(x) __builtin_popcount (x) |
837 | /* no popcountll */ |
1043 | /* no popcountll */ |
838 | #else |
1044 | #else |
839 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
1045 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
840 | ecb_function_ int |
1046 | ecb_function_ ecb_const int |
841 | ecb_ctz32 (uint32_t x) |
1047 | ecb_ctz32 (uint32_t x) |
842 | { |
1048 | { |
|
|
1049 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1050 | unsigned long r; |
|
|
1051 | _BitScanForward (&r, x); |
|
|
1052 | return (int)r; |
|
|
1053 | #else |
843 | int r = 0; |
1054 | int r = 0; |
844 | |
1055 | |
845 | x &= ~x + 1; /* this isolates the lowest bit */ |
1056 | x &= ~x + 1; /* this isolates the lowest bit */ |
846 | |
1057 | |
847 | #if ECB_branchless_on_i386 |
1058 | #if ECB_branchless_on_i386 |
… | |
… | |
857 | if (x & 0xff00ff00) r += 8; |
1068 | if (x & 0xff00ff00) r += 8; |
858 | if (x & 0xffff0000) r += 16; |
1069 | if (x & 0xffff0000) r += 16; |
859 | #endif |
1070 | #endif |
860 | |
1071 | |
861 | return r; |
1072 | return r; |
|
|
1073 | #endif |
862 | } |
1074 | } |
863 | |
1075 | |
864 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1076 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
865 | ecb_function_ int |
1077 | ecb_function_ ecb_const int |
866 | ecb_ctz64 (uint64_t x) |
1078 | ecb_ctz64 (uint64_t x) |
867 | { |
1079 | { |
|
|
1080 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1081 | unsigned long r; |
|
|
1082 | _BitScanForward64 (&r, x); |
|
|
1083 | return (int)r; |
|
|
1084 | #else |
868 | int shift = x & 0xffffffffU ? 0 : 32; |
1085 | int shift = x & 0xffffffff ? 0 : 32; |
869 | return ecb_ctz32 (x >> shift) + shift; |
1086 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1087 | #endif |
870 | } |
1088 | } |
871 | |
1089 | |
872 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1090 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
873 | ecb_function_ int |
1091 | ecb_function_ ecb_const int |
874 | ecb_popcount32 (uint32_t x) |
1092 | ecb_popcount32 (uint32_t x) |
875 | { |
1093 | { |
876 | x -= (x >> 1) & 0x55555555; |
1094 | x -= (x >> 1) & 0x55555555; |
877 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1095 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
878 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1096 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
879 | x *= 0x01010101; |
1097 | x *= 0x01010101; |
880 | |
1098 | |
881 | return x >> 24; |
1099 | return x >> 24; |
882 | } |
1100 | } |
883 | |
1101 | |
884 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1102 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
885 | ecb_function_ int ecb_ld32 (uint32_t x) |
1103 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
886 | { |
1104 | { |
|
|
1105 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1106 | unsigned long r; |
|
|
1107 | _BitScanReverse (&r, x); |
|
|
1108 | return (int)r; |
|
|
1109 | #else |
887 | int r = 0; |
1110 | int r = 0; |
888 | |
1111 | |
889 | if (x >> 16) { x >>= 16; r += 16; } |
1112 | if (x >> 16) { x >>= 16; r += 16; } |
890 | if (x >> 8) { x >>= 8; r += 8; } |
1113 | if (x >> 8) { x >>= 8; r += 8; } |
891 | if (x >> 4) { x >>= 4; r += 4; } |
1114 | if (x >> 4) { x >>= 4; r += 4; } |
892 | if (x >> 2) { x >>= 2; r += 2; } |
1115 | if (x >> 2) { x >>= 2; r += 2; } |
893 | if (x >> 1) { r += 1; } |
1116 | if (x >> 1) { r += 1; } |
894 | |
1117 | |
895 | return r; |
1118 | return r; |
|
|
1119 | #endif |
896 | } |
1120 | } |
897 | |
1121 | |
898 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1122 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
899 | ecb_function_ int ecb_ld64 (uint64_t x) |
1123 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
900 | { |
1124 | { |
|
|
1125 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1126 | unsigned long r; |
|
|
1127 | _BitScanReverse64 (&r, x); |
|
|
1128 | return (int)r; |
|
|
1129 | #else |
901 | int r = 0; |
1130 | int r = 0; |
902 | |
1131 | |
903 | if (x >> 32) { x >>= 32; r += 32; } |
1132 | if (x >> 32) { x >>= 32; r += 32; } |
904 | |
1133 | |
905 | return r + ecb_ld32 (x); |
1134 | return r + ecb_ld32 (x); |
|
|
1135 | #endif |
906 | } |
1136 | } |
907 | #endif |
1137 | #endif |
908 | |
1138 | |
909 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1139 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
910 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1140 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
911 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1141 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
912 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1142 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
913 | |
1143 | |
914 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1144 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
915 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1145 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
916 | { |
1146 | { |
917 | return ( (x * 0x0802U & 0x22110U) |
1147 | return ( (x * 0x0802U & 0x22110U) |
918 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1148 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
919 | } |
1149 | } |
920 | |
1150 | |
921 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1151 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
922 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1152 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
923 | { |
1153 | { |
924 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1154 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
925 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1155 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
926 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1156 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
927 | x = ( x >> 8 ) | ( x << 8); |
1157 | x = ( x >> 8 ) | ( x << 8); |
928 | |
1158 | |
929 | return x; |
1159 | return x; |
930 | } |
1160 | } |
931 | |
1161 | |
932 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1162 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
933 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1163 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
934 | { |
1164 | { |
935 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1165 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
936 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1166 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
937 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1167 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
938 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1168 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
941 | return x; |
1171 | return x; |
942 | } |
1172 | } |
943 | |
1173 | |
944 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1174 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
945 | /* so for this version we are lazy */ |
1175 | /* so for this version we are lazy */ |
946 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1176 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
947 | ecb_function_ int |
1177 | ecb_function_ ecb_const int |
948 | ecb_popcount64 (uint64_t x) |
1178 | ecb_popcount64 (uint64_t x) |
949 | { |
1179 | { |
950 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1180 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
951 | } |
1181 | } |
952 | |
1182 | |
953 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1183 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
954 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1184 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
955 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1185 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
956 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1186 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
957 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1187 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
958 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1188 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
959 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1189 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
960 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1190 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
961 | |
1191 | |
962 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1192 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
963 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1193 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
964 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1194 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
965 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1195 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
966 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1196 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
967 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1197 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
968 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1198 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
969 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1199 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
970 | |
1200 | |
971 | #if ECB_GCC_VERSION(4,3) |
1201 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1202 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1203 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1204 | #else |
972 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1205 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1206 | #endif |
973 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1207 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
974 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1208 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1209 | #elif _MSC_VER |
|
|
1210 | #include <stdlib.h> |
|
|
1211 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1212 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1213 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
975 | #else |
1214 | #else |
976 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1215 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
977 | ecb_function_ uint16_t |
1216 | ecb_function_ ecb_const uint16_t |
978 | ecb_bswap16 (uint16_t x) |
1217 | ecb_bswap16 (uint16_t x) |
979 | { |
1218 | { |
980 | return ecb_rotl16 (x, 8); |
1219 | return ecb_rotl16 (x, 8); |
981 | } |
1220 | } |
982 | |
1221 | |
983 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1222 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
984 | ecb_function_ uint32_t |
1223 | ecb_function_ ecb_const uint32_t |
985 | ecb_bswap32 (uint32_t x) |
1224 | ecb_bswap32 (uint32_t x) |
986 | { |
1225 | { |
987 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1226 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
988 | } |
1227 | } |
989 | |
1228 | |
990 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1229 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
991 | ecb_function_ uint64_t |
1230 | ecb_function_ ecb_const uint64_t |
992 | ecb_bswap64 (uint64_t x) |
1231 | ecb_bswap64 (uint64_t x) |
993 | { |
1232 | { |
994 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1233 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
995 | } |
1234 | } |
996 | #endif |
1235 | #endif |
997 | |
1236 | |
998 | #if ECB_GCC_VERSION(4,5) |
1237 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
999 | #define ecb_unreachable() __builtin_unreachable () |
1238 | #define ecb_unreachable() __builtin_unreachable () |
1000 | #else |
1239 | #else |
1001 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1240 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1002 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1241 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
1003 | ecb_inline void ecb_unreachable (void) { } |
1242 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
1004 | #endif |
1243 | #endif |
1005 | |
1244 | |
1006 | /* try to tell the compiler that some condition is definitely true */ |
1245 | /* try to tell the compiler that some condition is definitely true */ |
1007 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1246 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1008 | |
1247 | |
1009 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1248 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
1010 | ecb_inline unsigned char |
1249 | ecb_inline ecb_const uint32_t |
1011 | ecb_byteorder_helper (void) |
1250 | ecb_byteorder_helper (void) |
1012 | { |
1251 | { |
1013 | /* the union code still generates code under pressure in gcc, */ |
1252 | /* the union code still generates code under pressure in gcc, */ |
1014 | /* but less than using pointers, and always seems to */ |
1253 | /* but less than using pointers, and always seems to */ |
1015 | /* successfully return a constant. */ |
1254 | /* successfully return a constant. */ |
1016 | /* the reason why we have this horrible preprocessor mess */ |
1255 | /* the reason why we have this horrible preprocessor mess */ |
1017 | /* is to avoid it in all cases, at least on common architectures */ |
1256 | /* is to avoid it in all cases, at least on common architectures */ |
1018 | /* or when using a recent enough gcc version (>= 4.6) */ |
1257 | /* or when using a recent enough gcc version (>= 4.6) */ |
1019 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1020 | return 0x44; |
|
|
1021 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1258 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1259 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1260 | #define ECB_LITTLE_ENDIAN 1 |
1022 | return 0x44; |
1261 | return 0x44332211; |
1023 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1262 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1263 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1264 | #define ECB_BIG_ENDIAN 1 |
1024 | return 0x11; |
1265 | return 0x11223344; |
1025 | #else |
1266 | #else |
1026 | union |
1267 | union |
1027 | { |
1268 | { |
|
|
1269 | uint8_t c[4]; |
1028 | uint32_t i; |
1270 | uint32_t u; |
1029 | uint8_t c; |
|
|
1030 | } u = { 0x11223344 }; |
1271 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
1031 | return u.c; |
1272 | return u.u; |
1032 | #endif |
1273 | #endif |
1033 | } |
1274 | } |
1034 | |
1275 | |
1035 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1276 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1036 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1277 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
1037 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1278 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1038 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1279 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
1039 | |
1280 | |
1040 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1281 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1041 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1282 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1042 | #else |
1283 | #else |
1043 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1284 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1044 | #endif |
1285 | #endif |
1045 | |
1286 | |
1046 | #if __cplusplus |
1287 | #if ECB_CPP |
1047 | template<typename T> |
1288 | template<typename T> |
1048 | static inline T ecb_div_rd (T val, T div) |
1289 | static inline T ecb_div_rd (T val, T div) |
1049 | { |
1290 | { |
1050 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1291 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1051 | } |
1292 | } |
… | |
… | |
1068 | } |
1309 | } |
1069 | #else |
1310 | #else |
1070 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1311 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1071 | #endif |
1312 | #endif |
1072 | |
1313 | |
|
|
1314 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1315 | ecb_function_ ecb_const uint32_t |
|
|
1316 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1317 | { |
|
|
1318 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1319 | int e = (x >> 10) & 0x001f; |
|
|
1320 | unsigned int m = x & 0x03ff; |
|
|
1321 | |
|
|
1322 | if (ecb_expect_false (e == 31)) |
|
|
1323 | /* infinity or NaN */ |
|
|
1324 | e = 255 - (127 - 15); |
|
|
1325 | else if (ecb_expect_false (!e)) |
|
|
1326 | { |
|
|
1327 | if (ecb_expect_true (!m)) |
|
|
1328 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1329 | e = 0 - (127 - 15); |
|
|
1330 | else |
|
|
1331 | { |
|
|
1332 | /* subnormal, renormalise */ |
|
|
1333 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1334 | |
|
|
1335 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1336 | e -= s - 1; |
|
|
1337 | } |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1341 | e += 127 - 15; |
|
|
1342 | |
|
|
1343 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1347 | ecb_function_ ecb_const uint16_t |
|
|
1348 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1349 | { |
|
|
1350 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1351 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1352 | unsigned int m = x & 0x007fffff; |
|
|
1353 | |
|
|
1354 | x &= 0x7fffffff; |
|
|
1355 | |
|
|
1356 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1357 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1358 | { |
|
|
1359 | /* mantissa round-to-even */ |
|
|
1360 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1361 | |
|
|
1362 | /* handle overflow */ |
|
|
1363 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1364 | { |
|
|
1365 | m >>= 1; |
|
|
1366 | e += 1; |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /* handle large numbers and infinity */ |
|
|
1373 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1374 | return s | 0x7c00; |
|
|
1375 | |
|
|
1376 | /* handle zero, subnormals and small numbers */ |
|
|
1377 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1378 | { |
|
|
1379 | /* zero */ |
|
|
1380 | if (ecb_expect_true (!x)) |
|
|
1381 | return s; |
|
|
1382 | |
|
|
1383 | /* handle subnormals */ |
|
|
1384 | |
|
|
1385 | /* too small, will be zero */ |
|
|
1386 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1387 | return s; |
|
|
1388 | |
|
|
1389 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1390 | |
|
|
1391 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1392 | { |
|
|
1393 | unsigned int bits = 14 - e; |
|
|
1394 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1395 | unsigned int even = (m >> bits) & 1; |
|
|
1396 | |
|
|
1397 | /* if this overflows, we will end up with a normalised number */ |
|
|
1398 | m = (m + half + even) >> bits; |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | return s | m; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1405 | m >>= 13; |
|
|
1406 | |
|
|
1407 | return s | 0x7c00 | m | !m; |
|
|
1408 | } |
|
|
1409 | |
1073 | /*******************************************************************************/ |
1410 | /*******************************************************************************/ |
1074 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1411 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1075 | |
1412 | |
1076 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1413 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1077 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1414 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1078 | #if 0 \ |
1415 | #if 0 \ |
1079 | || __i386 || __i386__ \ |
1416 | || __i386 || __i386__ \ |
1080 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1417 | || ECB_GCC_AMD64 \ |
1081 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1418 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1082 | || defined __s390__ || defined __s390x__ \ |
1419 | || defined __s390__ || defined __s390x__ \ |
1083 | || defined __mips__ \ |
1420 | || defined __mips__ \ |
1084 | || defined __alpha__ \ |
1421 | || defined __alpha__ \ |
1085 | || defined __hppa__ \ |
1422 | || defined __hppa__ \ |
1086 | || defined __ia64__ \ |
1423 | || defined __ia64__ \ |
1087 | || defined __m68k__ \ |
1424 | || defined __m68k__ \ |
1088 | || defined __m88k__ \ |
1425 | || defined __m88k__ \ |
1089 | || defined __sh__ \ |
1426 | || defined __sh__ \ |
1090 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
1427 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
1091 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1428 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1092 | || defined __aarch64__ |
1429 | || defined __aarch64__ |
1093 | #define ECB_STDFP 1 |
1430 | #define ECB_STDFP 1 |
1094 | #include <string.h> /* for memcpy */ |
1431 | #include <string.h> /* for memcpy */ |
1095 | #else |
1432 | #else |
… | |
… | |
1111 | #define ECB_NAN NAN |
1448 | #define ECB_NAN NAN |
1112 | #else |
1449 | #else |
1113 | #define ECB_NAN ECB_INFINITY |
1450 | #define ECB_NAN ECB_INFINITY |
1114 | #endif |
1451 | #endif |
1115 | |
1452 | |
1116 | /* converts an ieee half/binary16 to a float */ |
1453 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
1117 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1454 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
1118 | ecb_function_ float |
1455 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
1119 | ecb_binary16_to_float (uint16_t x) |
1456 | #else |
1120 | { |
1457 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
1121 | int e = (x >> 10) & 0x1f; |
1458 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
1122 | int m = x & 0x3ff; |
1459 | #endif |
1123 | float r; |
|
|
1124 | |
|
|
1125 | if (!e ) r = ldexpf (m , -24); |
|
|
1126 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1127 | else if (m ) r = ECB_NAN; |
|
|
1128 | else r = ECB_INFINITY; |
|
|
1129 | |
|
|
1130 | return x & 0x8000 ? -r : r; |
|
|
1131 | } |
|
|
1132 | |
1460 | |
1133 | /* convert a float to ieee single/binary32 */ |
1461 | /* convert a float to ieee single/binary32 */ |
1134 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1462 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1135 | ecb_function_ uint32_t |
1463 | ecb_function_ ecb_const uint32_t |
1136 | ecb_float_to_binary32 (float x) |
1464 | ecb_float_to_binary32 (float x) |
1137 | { |
1465 | { |
1138 | uint32_t r; |
1466 | uint32_t r; |
1139 | |
1467 | |
1140 | #if ECB_STDFP |
1468 | #if ECB_STDFP |
… | |
… | |
1147 | if (x == 0e0f ) return 0x00000000U; |
1475 | if (x == 0e0f ) return 0x00000000U; |
1148 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1476 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1149 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1477 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1150 | if (x != x ) return 0x7fbfffffU; |
1478 | if (x != x ) return 0x7fbfffffU; |
1151 | |
1479 | |
1152 | m = frexpf (x, &e) * 0x1000000U; |
1480 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1153 | |
1481 | |
1154 | r = m & 0x80000000U; |
1482 | r = m & 0x80000000U; |
1155 | |
1483 | |
1156 | if (r) |
1484 | if (r) |
1157 | m = -m; |
1485 | m = -m; |
… | |
… | |
1169 | |
1497 | |
1170 | return r; |
1498 | return r; |
1171 | } |
1499 | } |
1172 | |
1500 | |
1173 | /* converts an ieee single/binary32 to a float */ |
1501 | /* converts an ieee single/binary32 to a float */ |
1174 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1502 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1175 | ecb_function_ float |
1503 | ecb_function_ ecb_const float |
1176 | ecb_binary32_to_float (uint32_t x) |
1504 | ecb_binary32_to_float (uint32_t x) |
1177 | { |
1505 | { |
1178 | float r; |
1506 | float r; |
1179 | |
1507 | |
1180 | #if ECB_STDFP |
1508 | #if ECB_STDFP |
… | |
… | |
1190 | x |= 0x800000U; |
1518 | x |= 0x800000U; |
1191 | else |
1519 | else |
1192 | e = 1; |
1520 | e = 1; |
1193 | |
1521 | |
1194 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1522 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1195 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1523 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1196 | |
1524 | |
1197 | r = neg ? -r : r; |
1525 | r = neg ? -r : r; |
1198 | #endif |
1526 | #endif |
1199 | |
1527 | |
1200 | return r; |
1528 | return r; |
1201 | } |
1529 | } |
1202 | |
1530 | |
1203 | /* convert a double to ieee double/binary64 */ |
1531 | /* convert a double to ieee double/binary64 */ |
1204 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1532 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1205 | ecb_function_ uint64_t |
1533 | ecb_function_ ecb_const uint64_t |
1206 | ecb_double_to_binary64 (double x) |
1534 | ecb_double_to_binary64 (double x) |
1207 | { |
1535 | { |
1208 | uint64_t r; |
1536 | uint64_t r; |
1209 | |
1537 | |
1210 | #if ECB_STDFP |
1538 | #if ECB_STDFP |
… | |
… | |
1239 | |
1567 | |
1240 | return r; |
1568 | return r; |
1241 | } |
1569 | } |
1242 | |
1570 | |
1243 | /* converts an ieee double/binary64 to a double */ |
1571 | /* converts an ieee double/binary64 to a double */ |
1244 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1572 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1245 | ecb_function_ double |
1573 | ecb_function_ ecb_const double |
1246 | ecb_binary64_to_double (uint64_t x) |
1574 | ecb_binary64_to_double (uint64_t x) |
1247 | { |
1575 | { |
1248 | double r; |
1576 | double r; |
1249 | |
1577 | |
1250 | #if ECB_STDFP |
1578 | #if ECB_STDFP |
… | |
… | |
1268 | #endif |
1596 | #endif |
1269 | |
1597 | |
1270 | return r; |
1598 | return r; |
1271 | } |
1599 | } |
1272 | |
1600 | |
|
|
1601 | /* convert a float to ieee half/binary16 */ |
|
|
1602 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1603 | ecb_function_ ecb_const uint16_t |
|
|
1604 | ecb_float_to_binary16 (float x) |
|
|
1605 | { |
|
|
1606 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1607 | } |
|
|
1608 | |
|
|
1609 | /* convert an ieee half/binary16 to float */ |
|
|
1610 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1611 | ecb_function_ ecb_const float |
|
|
1612 | ecb_binary16_to_float (uint16_t x) |
|
|
1613 | { |
|
|
1614 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1615 | } |
|
|
1616 | |
1273 | #endif |
1617 | #endif |
1274 | |
1618 | |
1275 | #endif |
1619 | #endif |
1276 | |
1620 | |
1277 | /* ECB.H END */ |
1621 | /* ECB.H END */ |
1278 | |
1622 | |
1279 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1623 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1280 | /* if your architecture doesn't need memory fences, e.g. because it is |
1624 | /* if your architecture doesn't need memory fences, e.g. because it is |
1281 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1625 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1282 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1626 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
1283 | * libev, in which cases the memory fences become nops. |
1627 | * libev, in which cases the memory fences become nops. |
1284 | * alternatively, you can remove this #error and link against libpthread, |
1628 | * alternatively, you can remove this #error and link against libpthread, |
1285 | * which will then provide the memory fences. |
1629 | * which will then provide the memory fences. |
1286 | */ |
1630 | */ |
1287 | # error "memory fences not defined for your architecture, please report" |
1631 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1291 | # define ECB_MEMORY_FENCE do { } while (0) |
1635 | # define ECB_MEMORY_FENCE do { } while (0) |
1292 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1636 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1293 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1637 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1294 | #endif |
1638 | #endif |
1295 | |
1639 | |
1296 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1297 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1298 | #define noinline ecb_noinline |
|
|
1299 | |
|
|
1300 | #define inline_size ecb_inline |
1640 | #define inline_size ecb_inline |
1301 | |
1641 | |
1302 | #if EV_FEATURE_CODE |
1642 | #if EV_FEATURE_CODE |
1303 | # define inline_speed ecb_inline |
1643 | # define inline_speed ecb_inline |
1304 | #else |
1644 | #else |
1305 | # define inline_speed static noinline |
1645 | # define inline_speed ecb_noinline static |
1306 | #endif |
1646 | #endif |
|
|
1647 | |
|
|
1648 | /*****************************************************************************/ |
|
|
1649 | /* raw syscall wrappers */ |
|
|
1650 | |
|
|
1651 | #if EV_NEED_SYSCALL |
|
|
1652 | |
|
|
1653 | #include <sys/syscall.h> |
|
|
1654 | |
|
|
1655 | /* |
|
|
1656 | * define some syscall wrappers for common architectures |
|
|
1657 | * this is mostly for nice looks during debugging, not performance. |
|
|
1658 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1659 | * enough for linux aio. |
|
|
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1662 | */ |
|
|
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1664 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1665 | |
|
|
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1667 | ({ \ |
|
|
1668 | long res; \ |
|
|
1669 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1670 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1671 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1672 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1673 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1674 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1675 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1676 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1677 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1678 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1679 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1680 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1681 | __asm__ __volatile__ ( \ |
|
|
1682 | "syscall\n\t" \ |
|
|
1683 | : "=a" (res) \ |
|
|
1684 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1685 | : "cc", "r11", "cx", "memory"); \ |
|
|
1686 | errno = -res; \ |
|
|
1687 | res; \ |
|
|
1688 | }) |
|
|
1689 | |
|
|
1690 | #endif |
|
|
1691 | |
|
|
1692 | #ifdef ev_syscall |
|
|
1693 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1694 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1695 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1696 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1697 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1698 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1699 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1700 | #else |
|
|
1701 | #define ev_syscall0(nr) syscall (nr) |
|
|
1702 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1703 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1704 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1705 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1706 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1707 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | #endif |
|
|
1711 | |
|
|
1712 | /*****************************************************************************/ |
1307 | |
1713 | |
1308 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1309 | |
1715 | |
1310 | #if EV_MINPRI == EV_MAXPRI |
1716 | #if EV_MINPRI == EV_MAXPRI |
1311 | # define ABSPRI(w) (((W)w), 0) |
1717 | # define ABSPRI(w) (((W)w), 0) |
1312 | #else |
1718 | #else |
1313 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1719 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1314 | #endif |
1720 | #endif |
1315 | |
1721 | |
1316 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1722 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1317 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1318 | |
1723 | |
1319 | typedef ev_watcher *W; |
1724 | typedef ev_watcher *W; |
1320 | typedef ev_watcher_list *WL; |
1725 | typedef ev_watcher_list *WL; |
1321 | typedef ev_watcher_time *WT; |
1726 | typedef ev_watcher_time *WT; |
1322 | |
1727 | |
… | |
… | |
1347 | # include "ev_win32.c" |
1752 | # include "ev_win32.c" |
1348 | #endif |
1753 | #endif |
1349 | |
1754 | |
1350 | /*****************************************************************************/ |
1755 | /*****************************************************************************/ |
1351 | |
1756 | |
|
|
1757 | #if EV_USE_LINUXAIO |
|
|
1758 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1759 | #endif |
|
|
1760 | |
1352 | /* define a suitable floor function (only used by periodics atm) */ |
1761 | /* define a suitable floor function (only used by periodics atm) */ |
1353 | |
1762 | |
1354 | #if EV_USE_FLOOR |
1763 | #if EV_USE_FLOOR |
1355 | # include <math.h> |
1764 | # include <math.h> |
1356 | # define ev_floor(v) floor (v) |
1765 | # define ev_floor(v) floor (v) |
1357 | #else |
1766 | #else |
1358 | |
1767 | |
1359 | #include <float.h> |
1768 | #include <float.h> |
1360 | |
1769 | |
1361 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1770 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1771 | ecb_noinline |
1362 | static ev_tstamp noinline |
1772 | static ev_tstamp |
1363 | ev_floor (ev_tstamp v) |
1773 | ev_floor (ev_tstamp v) |
1364 | { |
1774 | { |
1365 | /* the choice of shift factor is not terribly important */ |
1775 | /* the choice of shift factor is not terribly important */ |
1366 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1776 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1367 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1368 | #else |
1778 | #else |
1369 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1370 | #endif |
1780 | #endif |
1371 | |
1781 | |
|
|
1782 | /* special treatment for negative arguments */ |
|
|
1783 | if (ecb_expect_false (v < 0.)) |
|
|
1784 | { |
|
|
1785 | ev_tstamp f = -ev_floor (-v); |
|
|
1786 | |
|
|
1787 | return f - (f == v ? 0 : 1); |
|
|
1788 | } |
|
|
1789 | |
1372 | /* argument too large for an unsigned long? */ |
1790 | /* argument too large for an unsigned long? then reduce it */ |
1373 | if (expect_false (v >= shift)) |
1791 | if (ecb_expect_false (v >= shift)) |
1374 | { |
1792 | { |
1375 | ev_tstamp f; |
1793 | ev_tstamp f; |
1376 | |
1794 | |
1377 | if (v == v - 1.) |
1795 | if (v == v - 1.) |
1378 | return v; /* very large number */ |
1796 | return v; /* very large numbers are assumed to be integer */ |
1379 | |
1797 | |
1380 | f = shift * ev_floor (v * (1. / shift)); |
1798 | f = shift * ev_floor (v * (1. / shift)); |
1381 | return f + ev_floor (v - f); |
1799 | return f + ev_floor (v - f); |
1382 | } |
1800 | } |
1383 | |
1801 | |
1384 | /* special treatment for negative args? */ |
|
|
1385 | if (expect_false (v < 0.)) |
|
|
1386 | { |
|
|
1387 | ev_tstamp f = -ev_floor (-v); |
|
|
1388 | |
|
|
1389 | return f - (f == v ? 0 : 1); |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | /* fits into an unsigned long */ |
1802 | /* fits into an unsigned long */ |
1393 | return (unsigned long)v; |
1803 | return (unsigned long)v; |
1394 | } |
1804 | } |
1395 | |
1805 | |
1396 | #endif |
1806 | #endif |
… | |
… | |
1399 | |
1809 | |
1400 | #ifdef __linux |
1810 | #ifdef __linux |
1401 | # include <sys/utsname.h> |
1811 | # include <sys/utsname.h> |
1402 | #endif |
1812 | #endif |
1403 | |
1813 | |
1404 | static unsigned int noinline ecb_cold |
1814 | ecb_noinline ecb_cold |
|
|
1815 | static unsigned int |
1405 | ev_linux_version (void) |
1816 | ev_linux_version (void) |
1406 | { |
1817 | { |
1407 | #ifdef __linux |
1818 | #ifdef __linux |
1408 | unsigned int v = 0; |
1819 | unsigned int v = 0; |
1409 | struct utsname buf; |
1820 | struct utsname buf; |
… | |
… | |
1438 | } |
1849 | } |
1439 | |
1850 | |
1440 | /*****************************************************************************/ |
1851 | /*****************************************************************************/ |
1441 | |
1852 | |
1442 | #if EV_AVOID_STDIO |
1853 | #if EV_AVOID_STDIO |
1443 | static void noinline ecb_cold |
1854 | ecb_noinline ecb_cold |
|
|
1855 | static void |
1444 | ev_printerr (const char *msg) |
1856 | ev_printerr (const char *msg) |
1445 | { |
1857 | { |
1446 | write (STDERR_FILENO, msg, strlen (msg)); |
1858 | write (STDERR_FILENO, msg, strlen (msg)); |
1447 | } |
1859 | } |
1448 | #endif |
1860 | #endif |
1449 | |
1861 | |
1450 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1862 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1451 | |
1863 | |
1452 | void ecb_cold |
1864 | ecb_cold |
|
|
1865 | void |
1453 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1866 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1454 | { |
1867 | { |
1455 | syserr_cb = cb; |
1868 | syserr_cb = cb; |
1456 | } |
1869 | } |
1457 | |
1870 | |
1458 | static void noinline ecb_cold |
1871 | ecb_noinline ecb_cold |
|
|
1872 | static void |
1459 | ev_syserr (const char *msg) |
1873 | ev_syserr (const char *msg) |
1460 | { |
1874 | { |
1461 | if (!msg) |
1875 | if (!msg) |
1462 | msg = "(libev) system error"; |
1876 | msg = "(libev) system error"; |
1463 | |
1877 | |
… | |
… | |
1476 | abort (); |
1890 | abort (); |
1477 | } |
1891 | } |
1478 | } |
1892 | } |
1479 | |
1893 | |
1480 | static void * |
1894 | static void * |
1481 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1895 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1482 | { |
1896 | { |
1483 | /* some systems, notably openbsd and darwin, fail to properly |
1897 | /* some systems, notably openbsd and darwin, fail to properly |
1484 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1898 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1485 | * the single unix specification, so work around them here. |
1899 | * the single unix specification, so work around them here. |
1486 | * recently, also (at least) fedora and debian started breaking it, |
1900 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1492 | |
1906 | |
1493 | free (ptr); |
1907 | free (ptr); |
1494 | return 0; |
1908 | return 0; |
1495 | } |
1909 | } |
1496 | |
1910 | |
1497 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1911 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1498 | |
1912 | |
1499 | void ecb_cold |
1913 | ecb_cold |
|
|
1914 | void |
1500 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1915 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1501 | { |
1916 | { |
1502 | alloc = cb; |
1917 | alloc = cb; |
1503 | } |
1918 | } |
1504 | |
1919 | |
1505 | inline_speed void * |
1920 | inline_speed void * |
… | |
… | |
1532 | typedef struct |
1947 | typedef struct |
1533 | { |
1948 | { |
1534 | WL head; |
1949 | WL head; |
1535 | unsigned char events; /* the events watched for */ |
1950 | unsigned char events; /* the events watched for */ |
1536 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1951 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1537 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1952 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1538 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
1539 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
1540 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1541 | #endif |
1956 | #endif |
1542 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1543 | SOCKET handle; |
1958 | SOCKET handle; |
… | |
… | |
1597 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
1598 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
2013 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1599 | |
2014 | |
1600 | #else |
2015 | #else |
1601 | |
2016 | |
1602 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
2017 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1603 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
1604 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
1605 | #undef VAR |
2020 | #undef VAR |
1606 | |
2021 | |
1607 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
1608 | |
2023 | |
1609 | #endif |
2024 | #endif |
1610 | |
2025 | |
1611 | #if EV_FEATURE_API |
2026 | #if EV_FEATURE_API |
1612 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2027 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1613 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2028 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1614 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2029 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1615 | #else |
2030 | #else |
1616 | # define EV_RELEASE_CB (void)0 |
2031 | # define EV_RELEASE_CB (void)0 |
1617 | # define EV_ACQUIRE_CB (void)0 |
2032 | # define EV_ACQUIRE_CB (void)0 |
1618 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2033 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1622 | |
2037 | |
1623 | /*****************************************************************************/ |
2038 | /*****************************************************************************/ |
1624 | |
2039 | |
1625 | #ifndef EV_HAVE_EV_TIME |
2040 | #ifndef EV_HAVE_EV_TIME |
1626 | ev_tstamp |
2041 | ev_tstamp |
1627 | ev_time (void) EV_THROW |
2042 | ev_time (void) EV_NOEXCEPT |
1628 | { |
2043 | { |
1629 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
1630 | if (expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
1631 | { |
2046 | { |
1632 | struct timespec ts; |
2047 | struct timespec ts; |
1633 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
1634 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
1635 | } |
2050 | } |
1636 | #endif |
2051 | #endif |
1637 | |
2052 | |
|
|
2053 | { |
1638 | struct timeval tv; |
2054 | struct timeval tv; |
1639 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
1640 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
1641 | } |
2058 | } |
1642 | #endif |
2059 | #endif |
1643 | |
2060 | |
1644 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
1645 | get_clock (void) |
2062 | get_clock (void) |
1646 | { |
2063 | { |
1647 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
1648 | if (expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
1649 | { |
2066 | { |
1650 | struct timespec ts; |
2067 | struct timespec ts; |
1651 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1652 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
1653 | } |
2070 | } |
1654 | #endif |
2071 | #endif |
1655 | |
2072 | |
1656 | return ev_time (); |
2073 | return ev_time (); |
1657 | } |
2074 | } |
1658 | |
2075 | |
1659 | #if EV_MULTIPLICITY |
2076 | #if EV_MULTIPLICITY |
1660 | ev_tstamp |
2077 | ev_tstamp |
1661 | ev_now (EV_P) EV_THROW |
2078 | ev_now (EV_P) EV_NOEXCEPT |
1662 | { |
2079 | { |
1663 | return ev_rt_now; |
2080 | return ev_rt_now; |
1664 | } |
2081 | } |
1665 | #endif |
2082 | #endif |
1666 | |
2083 | |
1667 | void |
2084 | void |
1668 | ev_sleep (ev_tstamp delay) EV_THROW |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1669 | { |
2086 | { |
1670 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
1671 | { |
2088 | { |
1672 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
1673 | struct timespec ts; |
2090 | struct timespec ts; |
1674 | |
2091 | |
1675 | EV_TS_SET (ts, delay); |
2092 | EV_TS_SET (ts, delay); |
1676 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
1677 | #elif defined _WIN32 |
2094 | #elif defined _WIN32 |
|
|
2095 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2096 | /* compared to select (µs) or nanosleep (ns) */ |
1678 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1679 | #else |
2098 | #else |
1680 | struct timeval tv; |
2099 | struct timeval tv; |
1681 | |
2100 | |
1682 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2101 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1683 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1713 | } |
2132 | } |
1714 | |
2133 | |
1715 | return ncur; |
2134 | return ncur; |
1716 | } |
2135 | } |
1717 | |
2136 | |
1718 | static void * noinline ecb_cold |
2137 | ecb_noinline ecb_cold |
|
|
2138 | static void * |
1719 | array_realloc (int elem, void *base, int *cur, int cnt) |
2139 | array_realloc (int elem, void *base, int *cur, int cnt) |
1720 | { |
2140 | { |
1721 | *cur = array_nextsize (elem, *cur, cnt); |
2141 | *cur = array_nextsize (elem, *cur, cnt); |
1722 | return ev_realloc (base, elem * *cur); |
2142 | return ev_realloc (base, elem * *cur); |
1723 | } |
2143 | } |
1724 | |
2144 | |
|
|
2145 | #define array_needsize_noinit(base,offset,count) |
|
|
2146 | |
1725 | #define array_init_zero(base,count) \ |
2147 | #define array_needsize_zerofill(base,offset,count) \ |
1726 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2148 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1727 | |
2149 | |
1728 | #define array_needsize(type,base,cur,cnt,init) \ |
2150 | #define array_needsize(type,base,cur,cnt,init) \ |
1729 | if (expect_false ((cnt) > (cur))) \ |
2151 | if (ecb_expect_false ((cnt) > (cur))) \ |
1730 | { \ |
2152 | { \ |
1731 | int ecb_unused ocur_ = (cur); \ |
2153 | ecb_unused int ocur_ = (cur); \ |
1732 | (base) = (type *)array_realloc \ |
2154 | (base) = (type *)array_realloc \ |
1733 | (sizeof (type), (base), &(cur), (cnt)); \ |
2155 | (sizeof (type), (base), &(cur), (cnt)); \ |
1734 | init ((base) + (ocur_), (cur) - ocur_); \ |
2156 | init ((base), ocur_, ((cur) - ocur_)); \ |
1735 | } |
2157 | } |
1736 | |
2158 | |
1737 | #if 0 |
2159 | #if 0 |
1738 | #define array_slim(type,stem) \ |
2160 | #define array_slim(type,stem) \ |
1739 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2161 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1748 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2170 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1749 | |
2171 | |
1750 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
1751 | |
2173 | |
1752 | /* dummy callback for pending events */ |
2174 | /* dummy callback for pending events */ |
1753 | static void noinline |
2175 | ecb_noinline |
|
|
2176 | static void |
1754 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2177 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1755 | { |
2178 | { |
1756 | } |
2179 | } |
1757 | |
2180 | |
1758 | void noinline |
2181 | ecb_noinline |
|
|
2182 | void |
1759 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2183 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1760 | { |
2184 | { |
1761 | W w_ = (W)w; |
2185 | W w_ = (W)w; |
1762 | int pri = ABSPRI (w_); |
2186 | int pri = ABSPRI (w_); |
1763 | |
2187 | |
1764 | if (expect_false (w_->pending)) |
2188 | if (ecb_expect_false (w_->pending)) |
1765 | pendings [pri][w_->pending - 1].events |= revents; |
2189 | pendings [pri][w_->pending - 1].events |= revents; |
1766 | else |
2190 | else |
1767 | { |
2191 | { |
1768 | w_->pending = ++pendingcnt [pri]; |
2192 | w_->pending = ++pendingcnt [pri]; |
1769 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2193 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1770 | pendings [pri][w_->pending - 1].w = w_; |
2194 | pendings [pri][w_->pending - 1].w = w_; |
1771 | pendings [pri][w_->pending - 1].events = revents; |
2195 | pendings [pri][w_->pending - 1].events = revents; |
1772 | } |
2196 | } |
1773 | |
2197 | |
1774 | pendingpri = NUMPRI - 1; |
2198 | pendingpri = NUMPRI - 1; |
1775 | } |
2199 | } |
1776 | |
2200 | |
1777 | inline_speed void |
2201 | inline_speed void |
1778 | feed_reverse (EV_P_ W w) |
2202 | feed_reverse (EV_P_ W w) |
1779 | { |
2203 | { |
1780 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2204 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1781 | rfeeds [rfeedcnt++] = w; |
2205 | rfeeds [rfeedcnt++] = w; |
1782 | } |
2206 | } |
1783 | |
2207 | |
1784 | inline_size void |
2208 | inline_size void |
1785 | feed_reverse_done (EV_P_ int revents) |
2209 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1820 | inline_speed void |
2244 | inline_speed void |
1821 | fd_event (EV_P_ int fd, int revents) |
2245 | fd_event (EV_P_ int fd, int revents) |
1822 | { |
2246 | { |
1823 | ANFD *anfd = anfds + fd; |
2247 | ANFD *anfd = anfds + fd; |
1824 | |
2248 | |
1825 | if (expect_true (!anfd->reify)) |
2249 | if (ecb_expect_true (!anfd->reify)) |
1826 | fd_event_nocheck (EV_A_ fd, revents); |
2250 | fd_event_nocheck (EV_A_ fd, revents); |
1827 | } |
2251 | } |
1828 | |
2252 | |
1829 | void |
2253 | void |
1830 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2254 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1831 | { |
2255 | { |
1832 | if (fd >= 0 && fd < anfdmax) |
2256 | if (fd >= 0 && fd < anfdmax) |
1833 | fd_event_nocheck (EV_A_ fd, revents); |
2257 | fd_event_nocheck (EV_A_ fd, revents); |
1834 | } |
2258 | } |
1835 | |
2259 | |
… | |
… | |
1872 | ev_io *w; |
2296 | ev_io *w; |
1873 | |
2297 | |
1874 | unsigned char o_events = anfd->events; |
2298 | unsigned char o_events = anfd->events; |
1875 | unsigned char o_reify = anfd->reify; |
2299 | unsigned char o_reify = anfd->reify; |
1876 | |
2300 | |
1877 | anfd->reify = 0; |
2301 | anfd->reify = 0; |
1878 | |
2302 | |
1879 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2303 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1880 | { |
2304 | { |
1881 | anfd->events = 0; |
2305 | anfd->events = 0; |
1882 | |
2306 | |
1883 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2307 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1884 | anfd->events |= (unsigned char)w->events; |
2308 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1893 | |
2317 | |
1894 | fdchangecnt = 0; |
2318 | fdchangecnt = 0; |
1895 | } |
2319 | } |
1896 | |
2320 | |
1897 | /* something about the given fd changed */ |
2321 | /* something about the given fd changed */ |
1898 | inline_size void |
2322 | inline_size |
|
|
2323 | void |
1899 | fd_change (EV_P_ int fd, int flags) |
2324 | fd_change (EV_P_ int fd, int flags) |
1900 | { |
2325 | { |
1901 | unsigned char reify = anfds [fd].reify; |
2326 | unsigned char reify = anfds [fd].reify; |
1902 | anfds [fd].reify |= flags; |
2327 | anfds [fd].reify |= flags; |
1903 | |
2328 | |
1904 | if (expect_true (!reify)) |
2329 | if (ecb_expect_true (!reify)) |
1905 | { |
2330 | { |
1906 | ++fdchangecnt; |
2331 | ++fdchangecnt; |
1907 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2332 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1908 | fdchanges [fdchangecnt - 1] = fd; |
2333 | fdchanges [fdchangecnt - 1] = fd; |
1909 | } |
2334 | } |
1910 | } |
2335 | } |
1911 | |
2336 | |
1912 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2337 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1913 | inline_speed void ecb_cold |
2338 | inline_speed ecb_cold void |
1914 | fd_kill (EV_P_ int fd) |
2339 | fd_kill (EV_P_ int fd) |
1915 | { |
2340 | { |
1916 | ev_io *w; |
2341 | ev_io *w; |
1917 | |
2342 | |
1918 | while ((w = (ev_io *)anfds [fd].head)) |
2343 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1921 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2346 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1922 | } |
2347 | } |
1923 | } |
2348 | } |
1924 | |
2349 | |
1925 | /* check whether the given fd is actually valid, for error recovery */ |
2350 | /* check whether the given fd is actually valid, for error recovery */ |
1926 | inline_size int ecb_cold |
2351 | inline_size ecb_cold int |
1927 | fd_valid (int fd) |
2352 | fd_valid (int fd) |
1928 | { |
2353 | { |
1929 | #ifdef _WIN32 |
2354 | #ifdef _WIN32 |
1930 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2355 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1931 | #else |
2356 | #else |
1932 | return fcntl (fd, F_GETFD) != -1; |
2357 | return fcntl (fd, F_GETFD) != -1; |
1933 | #endif |
2358 | #endif |
1934 | } |
2359 | } |
1935 | |
2360 | |
1936 | /* called on EBADF to verify fds */ |
2361 | /* called on EBADF to verify fds */ |
1937 | static void noinline ecb_cold |
2362 | ecb_noinline ecb_cold |
|
|
2363 | static void |
1938 | fd_ebadf (EV_P) |
2364 | fd_ebadf (EV_P) |
1939 | { |
2365 | { |
1940 | int fd; |
2366 | int fd; |
1941 | |
2367 | |
1942 | for (fd = 0; fd < anfdmax; ++fd) |
2368 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1944 | if (!fd_valid (fd) && errno == EBADF) |
2370 | if (!fd_valid (fd) && errno == EBADF) |
1945 | fd_kill (EV_A_ fd); |
2371 | fd_kill (EV_A_ fd); |
1946 | } |
2372 | } |
1947 | |
2373 | |
1948 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2374 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1949 | static void noinline ecb_cold |
2375 | ecb_noinline ecb_cold |
|
|
2376 | static void |
1950 | fd_enomem (EV_P) |
2377 | fd_enomem (EV_P) |
1951 | { |
2378 | { |
1952 | int fd; |
2379 | int fd; |
1953 | |
2380 | |
1954 | for (fd = anfdmax; fd--; ) |
2381 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1958 | break; |
2385 | break; |
1959 | } |
2386 | } |
1960 | } |
2387 | } |
1961 | |
2388 | |
1962 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2389 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1963 | static void noinline |
2390 | ecb_noinline |
|
|
2391 | static void |
1964 | fd_rearm_all (EV_P) |
2392 | fd_rearm_all (EV_P) |
1965 | { |
2393 | { |
1966 | int fd; |
2394 | int fd; |
1967 | |
2395 | |
1968 | for (fd = 0; fd < anfdmax; ++fd) |
2396 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
2021 | ev_tstamp minat; |
2449 | ev_tstamp minat; |
2022 | ANHE *minpos; |
2450 | ANHE *minpos; |
2023 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2451 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2024 | |
2452 | |
2025 | /* find minimum child */ |
2453 | /* find minimum child */ |
2026 | if (expect_true (pos + DHEAP - 1 < E)) |
2454 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2027 | { |
2455 | { |
2028 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2456 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2029 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2457 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2030 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2458 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2031 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2459 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2032 | } |
2460 | } |
2033 | else if (pos < E) |
2461 | else if (pos < E) |
2034 | { |
2462 | { |
2035 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2463 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2036 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2464 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2037 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2465 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2038 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2466 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2039 | } |
2467 | } |
2040 | else |
2468 | else |
2041 | break; |
2469 | break; |
2042 | |
2470 | |
2043 | if (ANHE_at (he) <= minat) |
2471 | if (ANHE_at (he) <= minat) |
… | |
… | |
2051 | |
2479 | |
2052 | heap [k] = he; |
2480 | heap [k] = he; |
2053 | ev_active (ANHE_w (he)) = k; |
2481 | ev_active (ANHE_w (he)) = k; |
2054 | } |
2482 | } |
2055 | |
2483 | |
2056 | #else /* 4HEAP */ |
2484 | #else /* not 4HEAP */ |
2057 | |
2485 | |
2058 | #define HEAP0 1 |
2486 | #define HEAP0 1 |
2059 | #define HPARENT(k) ((k) >> 1) |
2487 | #define HPARENT(k) ((k) >> 1) |
2060 | #define UPHEAP_DONE(p,k) (!(p)) |
2488 | #define UPHEAP_DONE(p,k) (!(p)) |
2061 | |
2489 | |
… | |
… | |
2149 | |
2577 | |
2150 | /*****************************************************************************/ |
2578 | /*****************************************************************************/ |
2151 | |
2579 | |
2152 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2580 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2153 | |
2581 | |
2154 | static void noinline ecb_cold |
2582 | ecb_noinline ecb_cold |
|
|
2583 | static void |
2155 | evpipe_init (EV_P) |
2584 | evpipe_init (EV_P) |
2156 | { |
2585 | { |
2157 | if (!ev_is_active (&pipe_w)) |
2586 | if (!ev_is_active (&pipe_w)) |
2158 | { |
2587 | { |
2159 | int fds [2]; |
2588 | int fds [2]; |
… | |
… | |
2199 | inline_speed void |
2628 | inline_speed void |
2200 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2629 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2201 | { |
2630 | { |
2202 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2631 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2203 | |
2632 | |
2204 | if (expect_true (*flag)) |
2633 | if (ecb_expect_true (*flag)) |
2205 | return; |
2634 | return; |
2206 | |
2635 | |
2207 | *flag = 1; |
2636 | *flag = 1; |
2208 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2637 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2209 | |
2638 | |
… | |
… | |
2230 | #endif |
2659 | #endif |
2231 | { |
2660 | { |
2232 | #ifdef _WIN32 |
2661 | #ifdef _WIN32 |
2233 | WSABUF buf; |
2662 | WSABUF buf; |
2234 | DWORD sent; |
2663 | DWORD sent; |
2235 | buf.buf = &buf; |
2664 | buf.buf = (char *)&buf; |
2236 | buf.len = 1; |
2665 | buf.len = 1; |
2237 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2666 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2238 | #else |
2667 | #else |
2239 | write (evpipe [1], &(evpipe [1]), 1); |
2668 | write (evpipe [1], &(evpipe [1]), 1); |
2240 | #endif |
2669 | #endif |
… | |
… | |
2286 | sig_pending = 0; |
2715 | sig_pending = 0; |
2287 | |
2716 | |
2288 | ECB_MEMORY_FENCE; |
2717 | ECB_MEMORY_FENCE; |
2289 | |
2718 | |
2290 | for (i = EV_NSIG - 1; i--; ) |
2719 | for (i = EV_NSIG - 1; i--; ) |
2291 | if (expect_false (signals [i].pending)) |
2720 | if (ecb_expect_false (signals [i].pending)) |
2292 | ev_feed_signal_event (EV_A_ i + 1); |
2721 | ev_feed_signal_event (EV_A_ i + 1); |
2293 | } |
2722 | } |
2294 | #endif |
2723 | #endif |
2295 | |
2724 | |
2296 | #if EV_ASYNC_ENABLE |
2725 | #if EV_ASYNC_ENABLE |
… | |
… | |
2312 | } |
2741 | } |
2313 | |
2742 | |
2314 | /*****************************************************************************/ |
2743 | /*****************************************************************************/ |
2315 | |
2744 | |
2316 | void |
2745 | void |
2317 | ev_feed_signal (int signum) EV_THROW |
2746 | ev_feed_signal (int signum) EV_NOEXCEPT |
2318 | { |
2747 | { |
2319 | #if EV_MULTIPLICITY |
2748 | #if EV_MULTIPLICITY |
2320 | EV_P; |
2749 | EV_P; |
2321 | ECB_MEMORY_FENCE_ACQUIRE; |
2750 | ECB_MEMORY_FENCE_ACQUIRE; |
2322 | EV_A = signals [signum - 1].loop; |
2751 | EV_A = signals [signum - 1].loop; |
… | |
… | |
2337 | #endif |
2766 | #endif |
2338 | |
2767 | |
2339 | ev_feed_signal (signum); |
2768 | ev_feed_signal (signum); |
2340 | } |
2769 | } |
2341 | |
2770 | |
2342 | void noinline |
2771 | ecb_noinline |
|
|
2772 | void |
2343 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2773 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2344 | { |
2774 | { |
2345 | WL w; |
2775 | WL w; |
2346 | |
2776 | |
2347 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2777 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2348 | return; |
2778 | return; |
2349 | |
2779 | |
2350 | --signum; |
2780 | --signum; |
2351 | |
2781 | |
2352 | #if EV_MULTIPLICITY |
2782 | #if EV_MULTIPLICITY |
2353 | /* it is permissible to try to feed a signal to the wrong loop */ |
2783 | /* it is permissible to try to feed a signal to the wrong loop */ |
2354 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2784 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2355 | |
2785 | |
2356 | if (expect_false (signals [signum].loop != EV_A)) |
2786 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2357 | return; |
2787 | return; |
2358 | #endif |
2788 | #endif |
2359 | |
2789 | |
2360 | signals [signum].pending = 0; |
2790 | signals [signum].pending = 0; |
2361 | ECB_MEMORY_FENCE_RELEASE; |
2791 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2445 | |
2875 | |
2446 | #endif |
2876 | #endif |
2447 | |
2877 | |
2448 | /*****************************************************************************/ |
2878 | /*****************************************************************************/ |
2449 | |
2879 | |
|
|
2880 | #if EV_USE_TIMERFD |
|
|
2881 | |
|
|
2882 | static void periodics_reschedule (EV_P); |
|
|
2883 | |
|
|
2884 | static void |
|
|
2885 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2886 | { |
|
|
2887 | struct itimerspec its = { 0 }; |
|
|
2888 | |
|
|
2889 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2890 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2891 | * be a problem. */ |
|
|
2892 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2893 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2894 | |
|
|
2895 | ev_rt_now = ev_time (); |
|
|
2896 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2897 | /* but maybe in the future we want the full treatment. */ |
|
|
2898 | /* |
|
|
2899 | now_floor = EV_TS_CONST (0.); |
|
|
2900 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2901 | */ |
|
|
2902 | periodics_reschedule (EV_A); |
|
|
2903 | } |
|
|
2904 | |
|
|
2905 | ecb_noinline ecb_cold |
|
|
2906 | static void |
|
|
2907 | evtimerfd_init (EV_P) |
|
|
2908 | { |
|
|
2909 | if (!ev_is_active (&timerfd_w)) |
|
|
2910 | { |
|
|
2911 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2912 | |
|
|
2913 | if (timerfd >= 0) |
|
|
2914 | { |
|
|
2915 | fd_intern (timerfd); /* just to be sure */ |
|
|
2916 | |
|
|
2917 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2918 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2919 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2920 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2921 | |
|
|
2922 | /* (re-) arm timer */ |
|
|
2923 | timerfdcb (EV_A_ 0, 0); |
|
|
2924 | } |
|
|
2925 | } |
|
|
2926 | } |
|
|
2927 | |
|
|
2928 | #endif |
|
|
2929 | |
|
|
2930 | /*****************************************************************************/ |
|
|
2931 | |
2450 | #if EV_USE_IOCP |
2932 | #if EV_USE_IOCP |
2451 | # include "ev_iocp.c" |
2933 | # include "ev_iocp.c" |
2452 | #endif |
2934 | #endif |
2453 | #if EV_USE_PORT |
2935 | #if EV_USE_PORT |
2454 | # include "ev_port.c" |
2936 | # include "ev_port.c" |
… | |
… | |
2457 | # include "ev_kqueue.c" |
2939 | # include "ev_kqueue.c" |
2458 | #endif |
2940 | #endif |
2459 | #if EV_USE_EPOLL |
2941 | #if EV_USE_EPOLL |
2460 | # include "ev_epoll.c" |
2942 | # include "ev_epoll.c" |
2461 | #endif |
2943 | #endif |
|
|
2944 | #if EV_USE_LINUXAIO |
|
|
2945 | # include "ev_linuxaio.c" |
|
|
2946 | #endif |
|
|
2947 | #if EV_USE_IOURING |
|
|
2948 | # include "ev_iouring.c" |
|
|
2949 | #endif |
2462 | #if EV_USE_POLL |
2950 | #if EV_USE_POLL |
2463 | # include "ev_poll.c" |
2951 | # include "ev_poll.c" |
2464 | #endif |
2952 | #endif |
2465 | #if EV_USE_SELECT |
2953 | #if EV_USE_SELECT |
2466 | # include "ev_select.c" |
2954 | # include "ev_select.c" |
2467 | #endif |
2955 | #endif |
2468 | |
2956 | |
2469 | int ecb_cold |
2957 | ecb_cold int |
2470 | ev_version_major (void) EV_THROW |
2958 | ev_version_major (void) EV_NOEXCEPT |
2471 | { |
2959 | { |
2472 | return EV_VERSION_MAJOR; |
2960 | return EV_VERSION_MAJOR; |
2473 | } |
2961 | } |
2474 | |
2962 | |
2475 | int ecb_cold |
2963 | ecb_cold int |
2476 | ev_version_minor (void) EV_THROW |
2964 | ev_version_minor (void) EV_NOEXCEPT |
2477 | { |
2965 | { |
2478 | return EV_VERSION_MINOR; |
2966 | return EV_VERSION_MINOR; |
2479 | } |
2967 | } |
2480 | |
2968 | |
2481 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2969 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2482 | int inline_size ecb_cold |
2970 | inline_size ecb_cold int |
2483 | enable_secure (void) |
2971 | enable_secure (void) |
2484 | { |
2972 | { |
2485 | #ifdef _WIN32 |
2973 | #ifdef _WIN32 |
2486 | return 0; |
2974 | return 0; |
2487 | #else |
2975 | #else |
2488 | return getuid () != geteuid () |
2976 | return getuid () != geteuid () |
2489 | || getgid () != getegid (); |
2977 | || getgid () != getegid (); |
2490 | #endif |
2978 | #endif |
2491 | } |
2979 | } |
2492 | |
2980 | |
2493 | unsigned int ecb_cold |
2981 | ecb_cold |
|
|
2982 | unsigned int |
2494 | ev_supported_backends (void) EV_THROW |
2983 | ev_supported_backends (void) EV_NOEXCEPT |
2495 | { |
2984 | { |
2496 | unsigned int flags = 0; |
2985 | unsigned int flags = 0; |
2497 | |
2986 | |
2498 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2987 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2499 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2988 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2500 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2989 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2990 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2991 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
2501 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2992 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2502 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2993 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2503 | |
2994 | |
2504 | return flags; |
2995 | return flags; |
2505 | } |
2996 | } |
2506 | |
2997 | |
2507 | unsigned int ecb_cold |
2998 | ecb_cold |
|
|
2999 | unsigned int |
2508 | ev_recommended_backends (void) EV_THROW |
3000 | ev_recommended_backends (void) EV_NOEXCEPT |
2509 | { |
3001 | { |
2510 | unsigned int flags = ev_supported_backends (); |
3002 | unsigned int flags = ev_supported_backends (); |
2511 | |
3003 | |
2512 | #ifndef __NetBSD__ |
3004 | #ifndef __NetBSD__ |
2513 | /* kqueue is borked on everything but netbsd apparently */ |
3005 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2521 | #endif |
3013 | #endif |
2522 | #ifdef __FreeBSD__ |
3014 | #ifdef __FreeBSD__ |
2523 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3015 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2524 | #endif |
3016 | #endif |
2525 | |
3017 | |
|
|
3018 | /* TODO: linuxaio is very experimental */ |
|
|
3019 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3020 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3021 | #endif |
|
|
3022 | /* TODO: linuxaio is super experimental */ |
|
|
3023 | #if !EV_RECOMMEND_IOURING |
|
|
3024 | flags &= ~EVBACKEND_IOURING; |
|
|
3025 | #endif |
|
|
3026 | |
2526 | return flags; |
3027 | return flags; |
2527 | } |
3028 | } |
2528 | |
3029 | |
2529 | unsigned int ecb_cold |
3030 | ecb_cold |
|
|
3031 | unsigned int |
2530 | ev_embeddable_backends (void) EV_THROW |
3032 | ev_embeddable_backends (void) EV_NOEXCEPT |
2531 | { |
3033 | { |
2532 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3034 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2533 | |
3035 | |
2534 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3036 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2535 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3037 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2536 | flags &= ~EVBACKEND_EPOLL; |
3038 | flags &= ~EVBACKEND_EPOLL; |
2537 | |
3039 | |
|
|
3040 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3041 | |
|
|
3042 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
3043 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
3044 | * if the kernel ever is fixed, this might change... |
|
|
3045 | */ |
|
|
3046 | |
2538 | return flags; |
3047 | return flags; |
2539 | } |
3048 | } |
2540 | |
3049 | |
2541 | unsigned int |
3050 | unsigned int |
2542 | ev_backend (EV_P) EV_THROW |
3051 | ev_backend (EV_P) EV_NOEXCEPT |
2543 | { |
3052 | { |
2544 | return backend; |
3053 | return backend; |
2545 | } |
3054 | } |
2546 | |
3055 | |
2547 | #if EV_FEATURE_API |
3056 | #if EV_FEATURE_API |
2548 | unsigned int |
3057 | unsigned int |
2549 | ev_iteration (EV_P) EV_THROW |
3058 | ev_iteration (EV_P) EV_NOEXCEPT |
2550 | { |
3059 | { |
2551 | return loop_count; |
3060 | return loop_count; |
2552 | } |
3061 | } |
2553 | |
3062 | |
2554 | unsigned int |
3063 | unsigned int |
2555 | ev_depth (EV_P) EV_THROW |
3064 | ev_depth (EV_P) EV_NOEXCEPT |
2556 | { |
3065 | { |
2557 | return loop_depth; |
3066 | return loop_depth; |
2558 | } |
3067 | } |
2559 | |
3068 | |
2560 | void |
3069 | void |
2561 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
3070 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2562 | { |
3071 | { |
2563 | io_blocktime = interval; |
3072 | io_blocktime = interval; |
2564 | } |
3073 | } |
2565 | |
3074 | |
2566 | void |
3075 | void |
2567 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
3076 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2568 | { |
3077 | { |
2569 | timeout_blocktime = interval; |
3078 | timeout_blocktime = interval; |
2570 | } |
3079 | } |
2571 | |
3080 | |
2572 | void |
3081 | void |
2573 | ev_set_userdata (EV_P_ void *data) EV_THROW |
3082 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2574 | { |
3083 | { |
2575 | userdata = data; |
3084 | userdata = data; |
2576 | } |
3085 | } |
2577 | |
3086 | |
2578 | void * |
3087 | void * |
2579 | ev_userdata (EV_P) EV_THROW |
3088 | ev_userdata (EV_P) EV_NOEXCEPT |
2580 | { |
3089 | { |
2581 | return userdata; |
3090 | return userdata; |
2582 | } |
3091 | } |
2583 | |
3092 | |
2584 | void |
3093 | void |
2585 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
3094 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2586 | { |
3095 | { |
2587 | invoke_cb = invoke_pending_cb; |
3096 | invoke_cb = invoke_pending_cb; |
2588 | } |
3097 | } |
2589 | |
3098 | |
2590 | void |
3099 | void |
2591 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
3100 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2592 | { |
3101 | { |
2593 | release_cb = release; |
3102 | release_cb = release; |
2594 | acquire_cb = acquire; |
3103 | acquire_cb = acquire; |
2595 | } |
3104 | } |
2596 | #endif |
3105 | #endif |
2597 | |
3106 | |
2598 | /* initialise a loop structure, must be zero-initialised */ |
3107 | /* initialise a loop structure, must be zero-initialised */ |
2599 | static void noinline ecb_cold |
3108 | ecb_noinline ecb_cold |
|
|
3109 | static void |
2600 | loop_init (EV_P_ unsigned int flags) EV_THROW |
3110 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2601 | { |
3111 | { |
2602 | if (!backend) |
3112 | if (!backend) |
2603 | { |
3113 | { |
2604 | origflags = flags; |
3114 | origflags = flags; |
2605 | |
3115 | |
… | |
… | |
2658 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3168 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2659 | #endif |
3169 | #endif |
2660 | #if EV_USE_SIGNALFD |
3170 | #if EV_USE_SIGNALFD |
2661 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3171 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2662 | #endif |
3172 | #endif |
|
|
3173 | #if EV_USE_TIMERFD |
|
|
3174 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3175 | #endif |
2663 | |
3176 | |
2664 | if (!(flags & EVBACKEND_MASK)) |
3177 | if (!(flags & EVBACKEND_MASK)) |
2665 | flags |= ev_recommended_backends (); |
3178 | flags |= ev_recommended_backends (); |
2666 | |
3179 | |
2667 | #if EV_USE_IOCP |
3180 | #if EV_USE_IOCP |
2668 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3181 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2669 | #endif |
3182 | #endif |
2670 | #if EV_USE_PORT |
3183 | #if EV_USE_PORT |
2671 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3184 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2672 | #endif |
3185 | #endif |
2673 | #if EV_USE_KQUEUE |
3186 | #if EV_USE_KQUEUE |
2674 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3187 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3188 | #endif |
|
|
3189 | #if EV_USE_IOURING |
|
|
3190 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3191 | #endif |
|
|
3192 | #if EV_USE_LINUXAIO |
|
|
3193 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2675 | #endif |
3194 | #endif |
2676 | #if EV_USE_EPOLL |
3195 | #if EV_USE_EPOLL |
2677 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3196 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2678 | #endif |
3197 | #endif |
2679 | #if EV_USE_POLL |
3198 | #if EV_USE_POLL |
2680 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3199 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2681 | #endif |
3200 | #endif |
2682 | #if EV_USE_SELECT |
3201 | #if EV_USE_SELECT |
2683 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3202 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2684 | #endif |
3203 | #endif |
2685 | |
3204 | |
2686 | ev_prepare_init (&pending_w, pendingcb); |
3205 | ev_prepare_init (&pending_w, pendingcb); |
2687 | |
3206 | |
2688 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3207 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2691 | #endif |
3210 | #endif |
2692 | } |
3211 | } |
2693 | } |
3212 | } |
2694 | |
3213 | |
2695 | /* free up a loop structure */ |
3214 | /* free up a loop structure */ |
2696 | void ecb_cold |
3215 | ecb_cold |
|
|
3216 | void |
2697 | ev_loop_destroy (EV_P) |
3217 | ev_loop_destroy (EV_P) |
2698 | { |
3218 | { |
2699 | int i; |
3219 | int i; |
2700 | |
3220 | |
2701 | #if EV_MULTIPLICITY |
3221 | #if EV_MULTIPLICITY |
… | |
… | |
2704 | return; |
3224 | return; |
2705 | #endif |
3225 | #endif |
2706 | |
3226 | |
2707 | #if EV_CLEANUP_ENABLE |
3227 | #if EV_CLEANUP_ENABLE |
2708 | /* queue cleanup watchers (and execute them) */ |
3228 | /* queue cleanup watchers (and execute them) */ |
2709 | if (expect_false (cleanupcnt)) |
3229 | if (ecb_expect_false (cleanupcnt)) |
2710 | { |
3230 | { |
2711 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3231 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2712 | EV_INVOKE_PENDING; |
3232 | EV_INVOKE_PENDING; |
2713 | } |
3233 | } |
2714 | #endif |
3234 | #endif |
… | |
… | |
2733 | #if EV_USE_SIGNALFD |
3253 | #if EV_USE_SIGNALFD |
2734 | if (ev_is_active (&sigfd_w)) |
3254 | if (ev_is_active (&sigfd_w)) |
2735 | close (sigfd); |
3255 | close (sigfd); |
2736 | #endif |
3256 | #endif |
2737 | |
3257 | |
|
|
3258 | #if EV_USE_TIMERFD |
|
|
3259 | if (ev_is_active (&timerfd_w)) |
|
|
3260 | close (timerfd); |
|
|
3261 | #endif |
|
|
3262 | |
2738 | #if EV_USE_INOTIFY |
3263 | #if EV_USE_INOTIFY |
2739 | if (fs_fd >= 0) |
3264 | if (fs_fd >= 0) |
2740 | close (fs_fd); |
3265 | close (fs_fd); |
2741 | #endif |
3266 | #endif |
2742 | |
3267 | |
2743 | if (backend_fd >= 0) |
3268 | if (backend_fd >= 0) |
2744 | close (backend_fd); |
3269 | close (backend_fd); |
2745 | |
3270 | |
2746 | #if EV_USE_IOCP |
3271 | #if EV_USE_IOCP |
2747 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3272 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2748 | #endif |
3273 | #endif |
2749 | #if EV_USE_PORT |
3274 | #if EV_USE_PORT |
2750 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3275 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2751 | #endif |
3276 | #endif |
2752 | #if EV_USE_KQUEUE |
3277 | #if EV_USE_KQUEUE |
2753 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3278 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3279 | #endif |
|
|
3280 | #if EV_USE_IOURING |
|
|
3281 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3282 | #endif |
|
|
3283 | #if EV_USE_LINUXAIO |
|
|
3284 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2754 | #endif |
3285 | #endif |
2755 | #if EV_USE_EPOLL |
3286 | #if EV_USE_EPOLL |
2756 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3287 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2757 | #endif |
3288 | #endif |
2758 | #if EV_USE_POLL |
3289 | #if EV_USE_POLL |
2759 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3290 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2760 | #endif |
3291 | #endif |
2761 | #if EV_USE_SELECT |
3292 | #if EV_USE_SELECT |
2762 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3293 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2763 | #endif |
3294 | #endif |
2764 | |
3295 | |
2765 | for (i = NUMPRI; i--; ) |
3296 | for (i = NUMPRI; i--; ) |
2766 | { |
3297 | { |
2767 | array_free (pending, [i]); |
3298 | array_free (pending, [i]); |
… | |
… | |
2809 | |
3340 | |
2810 | inline_size void |
3341 | inline_size void |
2811 | loop_fork (EV_P) |
3342 | loop_fork (EV_P) |
2812 | { |
3343 | { |
2813 | #if EV_USE_PORT |
3344 | #if EV_USE_PORT |
2814 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3345 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2815 | #endif |
3346 | #endif |
2816 | #if EV_USE_KQUEUE |
3347 | #if EV_USE_KQUEUE |
2817 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3348 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3349 | #endif |
|
|
3350 | #if EV_USE_IOURING |
|
|
3351 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3352 | #endif |
|
|
3353 | #if EV_USE_LINUXAIO |
|
|
3354 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2818 | #endif |
3355 | #endif |
2819 | #if EV_USE_EPOLL |
3356 | #if EV_USE_EPOLL |
2820 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3357 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2821 | #endif |
3358 | #endif |
2822 | #if EV_USE_INOTIFY |
3359 | #if EV_USE_INOTIFY |
2823 | infy_fork (EV_A); |
3360 | infy_fork (EV_A); |
2824 | #endif |
3361 | #endif |
2825 | |
3362 | |
|
|
3363 | if (postfork != 2) |
|
|
3364 | { |
|
|
3365 | #if EV_USE_SIGNALFD |
|
|
3366 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3367 | #endif |
|
|
3368 | |
|
|
3369 | #if EV_USE_TIMERFD |
|
|
3370 | if (ev_is_active (&timerfd_w)) |
|
|
3371 | { |
|
|
3372 | ev_ref (EV_A); |
|
|
3373 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3374 | |
|
|
3375 | close (timerfd); |
|
|
3376 | timerfd = -2; |
|
|
3377 | |
|
|
3378 | evtimerfd_init (EV_A); |
|
|
3379 | /* reschedule periodics, in case we missed something */ |
|
|
3380 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3381 | } |
|
|
3382 | #endif |
|
|
3383 | |
2826 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3384 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2827 | if (ev_is_active (&pipe_w)) |
3385 | if (ev_is_active (&pipe_w)) |
2828 | { |
3386 | { |
2829 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3387 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2830 | |
3388 | |
2831 | ev_ref (EV_A); |
3389 | ev_ref (EV_A); |
2832 | ev_io_stop (EV_A_ &pipe_w); |
3390 | ev_io_stop (EV_A_ &pipe_w); |
2833 | |
3391 | |
2834 | if (evpipe [0] >= 0) |
3392 | if (evpipe [0] >= 0) |
2835 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3393 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2836 | |
3394 | |
2837 | evpipe_init (EV_A); |
3395 | evpipe_init (EV_A); |
2838 | /* iterate over everything, in case we missed something before */ |
3396 | /* iterate over everything, in case we missed something before */ |
2839 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3397 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3398 | } |
|
|
3399 | #endif |
2840 | } |
3400 | } |
2841 | #endif |
|
|
2842 | |
3401 | |
2843 | postfork = 0; |
3402 | postfork = 0; |
2844 | } |
3403 | } |
2845 | |
3404 | |
2846 | #if EV_MULTIPLICITY |
3405 | #if EV_MULTIPLICITY |
2847 | |
3406 | |
|
|
3407 | ecb_cold |
2848 | struct ev_loop * ecb_cold |
3408 | struct ev_loop * |
2849 | ev_loop_new (unsigned int flags) EV_THROW |
3409 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2850 | { |
3410 | { |
2851 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3411 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2852 | |
3412 | |
2853 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3413 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2854 | loop_init (EV_A_ flags); |
3414 | loop_init (EV_A_ flags); |
… | |
… | |
2861 | } |
3421 | } |
2862 | |
3422 | |
2863 | #endif /* multiplicity */ |
3423 | #endif /* multiplicity */ |
2864 | |
3424 | |
2865 | #if EV_VERIFY |
3425 | #if EV_VERIFY |
2866 | static void noinline ecb_cold |
3426 | ecb_noinline ecb_cold |
|
|
3427 | static void |
2867 | verify_watcher (EV_P_ W w) |
3428 | verify_watcher (EV_P_ W w) |
2868 | { |
3429 | { |
2869 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3430 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2870 | |
3431 | |
2871 | if (w->pending) |
3432 | if (w->pending) |
2872 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3433 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2873 | } |
3434 | } |
2874 | |
3435 | |
2875 | static void noinline ecb_cold |
3436 | ecb_noinline ecb_cold |
|
|
3437 | static void |
2876 | verify_heap (EV_P_ ANHE *heap, int N) |
3438 | verify_heap (EV_P_ ANHE *heap, int N) |
2877 | { |
3439 | { |
2878 | int i; |
3440 | int i; |
2879 | |
3441 | |
2880 | for (i = HEAP0; i < N + HEAP0; ++i) |
3442 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2885 | |
3447 | |
2886 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3448 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2887 | } |
3449 | } |
2888 | } |
3450 | } |
2889 | |
3451 | |
2890 | static void noinline ecb_cold |
3452 | ecb_noinline ecb_cold |
|
|
3453 | static void |
2891 | array_verify (EV_P_ W *ws, int cnt) |
3454 | array_verify (EV_P_ W *ws, int cnt) |
2892 | { |
3455 | { |
2893 | while (cnt--) |
3456 | while (cnt--) |
2894 | { |
3457 | { |
2895 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3458 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2898 | } |
3461 | } |
2899 | #endif |
3462 | #endif |
2900 | |
3463 | |
2901 | #if EV_FEATURE_API |
3464 | #if EV_FEATURE_API |
2902 | void ecb_cold |
3465 | void ecb_cold |
2903 | ev_verify (EV_P) EV_THROW |
3466 | ev_verify (EV_P) EV_NOEXCEPT |
2904 | { |
3467 | { |
2905 | #if EV_VERIFY |
3468 | #if EV_VERIFY |
2906 | int i; |
3469 | int i; |
2907 | WL w, w2; |
3470 | WL w, w2; |
2908 | |
3471 | |
… | |
… | |
2984 | #endif |
3547 | #endif |
2985 | } |
3548 | } |
2986 | #endif |
3549 | #endif |
2987 | |
3550 | |
2988 | #if EV_MULTIPLICITY |
3551 | #if EV_MULTIPLICITY |
|
|
3552 | ecb_cold |
2989 | struct ev_loop * ecb_cold |
3553 | struct ev_loop * |
2990 | #else |
3554 | #else |
2991 | int |
3555 | int |
2992 | #endif |
3556 | #endif |
2993 | ev_default_loop (unsigned int flags) EV_THROW |
3557 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2994 | { |
3558 | { |
2995 | if (!ev_default_loop_ptr) |
3559 | if (!ev_default_loop_ptr) |
2996 | { |
3560 | { |
2997 | #if EV_MULTIPLICITY |
3561 | #if EV_MULTIPLICITY |
2998 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3562 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
3017 | |
3581 | |
3018 | return ev_default_loop_ptr; |
3582 | return ev_default_loop_ptr; |
3019 | } |
3583 | } |
3020 | |
3584 | |
3021 | void |
3585 | void |
3022 | ev_loop_fork (EV_P) EV_THROW |
3586 | ev_loop_fork (EV_P) EV_NOEXCEPT |
3023 | { |
3587 | { |
3024 | postfork = 1; |
3588 | postfork = 1; |
3025 | } |
3589 | } |
3026 | |
3590 | |
3027 | /*****************************************************************************/ |
3591 | /*****************************************************************************/ |
… | |
… | |
3031 | { |
3595 | { |
3032 | EV_CB_INVOKE ((W)w, revents); |
3596 | EV_CB_INVOKE ((W)w, revents); |
3033 | } |
3597 | } |
3034 | |
3598 | |
3035 | unsigned int |
3599 | unsigned int |
3036 | ev_pending_count (EV_P) EV_THROW |
3600 | ev_pending_count (EV_P) EV_NOEXCEPT |
3037 | { |
3601 | { |
3038 | int pri; |
3602 | int pri; |
3039 | unsigned int count = 0; |
3603 | unsigned int count = 0; |
3040 | |
3604 | |
3041 | for (pri = NUMPRI; pri--; ) |
3605 | for (pri = NUMPRI; pri--; ) |
3042 | count += pendingcnt [pri]; |
3606 | count += pendingcnt [pri]; |
3043 | |
3607 | |
3044 | return count; |
3608 | return count; |
3045 | } |
3609 | } |
3046 | |
3610 | |
3047 | void noinline |
3611 | ecb_noinline |
|
|
3612 | void |
3048 | ev_invoke_pending (EV_P) |
3613 | ev_invoke_pending (EV_P) |
3049 | { |
3614 | { |
3050 | pendingpri = NUMPRI; |
3615 | pendingpri = NUMPRI; |
3051 | |
3616 | |
3052 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3617 | do |
3053 | { |
3618 | { |
3054 | --pendingpri; |
3619 | --pendingpri; |
3055 | |
3620 | |
|
|
3621 | /* pendingpri possibly gets modified in the inner loop */ |
3056 | while (pendingcnt [pendingpri]) |
3622 | while (pendingcnt [pendingpri]) |
3057 | { |
3623 | { |
3058 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3624 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3059 | |
3625 | |
3060 | p->w->pending = 0; |
3626 | p->w->pending = 0; |
3061 | EV_CB_INVOKE (p->w, p->events); |
3627 | EV_CB_INVOKE (p->w, p->events); |
3062 | EV_FREQUENT_CHECK; |
3628 | EV_FREQUENT_CHECK; |
3063 | } |
3629 | } |
3064 | } |
3630 | } |
|
|
3631 | while (pendingpri); |
3065 | } |
3632 | } |
3066 | |
3633 | |
3067 | #if EV_IDLE_ENABLE |
3634 | #if EV_IDLE_ENABLE |
3068 | /* make idle watchers pending. this handles the "call-idle */ |
3635 | /* make idle watchers pending. this handles the "call-idle */ |
3069 | /* only when higher priorities are idle" logic */ |
3636 | /* only when higher priorities are idle" logic */ |
3070 | inline_size void |
3637 | inline_size void |
3071 | idle_reify (EV_P) |
3638 | idle_reify (EV_P) |
3072 | { |
3639 | { |
3073 | if (expect_false (idleall)) |
3640 | if (ecb_expect_false (idleall)) |
3074 | { |
3641 | { |
3075 | int pri; |
3642 | int pri; |
3076 | |
3643 | |
3077 | for (pri = NUMPRI; pri--; ) |
3644 | for (pri = NUMPRI; pri--; ) |
3078 | { |
3645 | { |
… | |
… | |
3108 | { |
3675 | { |
3109 | ev_at (w) += w->repeat; |
3676 | ev_at (w) += w->repeat; |
3110 | if (ev_at (w) < mn_now) |
3677 | if (ev_at (w) < mn_now) |
3111 | ev_at (w) = mn_now; |
3678 | ev_at (w) = mn_now; |
3112 | |
3679 | |
3113 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3680 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
3114 | |
3681 | |
3115 | ANHE_at_cache (timers [HEAP0]); |
3682 | ANHE_at_cache (timers [HEAP0]); |
3116 | downheap (timers, timercnt, HEAP0); |
3683 | downheap (timers, timercnt, HEAP0); |
3117 | } |
3684 | } |
3118 | else |
3685 | else |
… | |
… | |
3127 | } |
3694 | } |
3128 | } |
3695 | } |
3129 | |
3696 | |
3130 | #if EV_PERIODIC_ENABLE |
3697 | #if EV_PERIODIC_ENABLE |
3131 | |
3698 | |
3132 | static void noinline |
3699 | ecb_noinline |
|
|
3700 | static void |
3133 | periodic_recalc (EV_P_ ev_periodic *w) |
3701 | periodic_recalc (EV_P_ ev_periodic *w) |
3134 | { |
3702 | { |
3135 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3703 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3136 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3704 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3137 | |
3705 | |
… | |
… | |
3139 | while (at <= ev_rt_now) |
3707 | while (at <= ev_rt_now) |
3140 | { |
3708 | { |
3141 | ev_tstamp nat = at + w->interval; |
3709 | ev_tstamp nat = at + w->interval; |
3142 | |
3710 | |
3143 | /* when resolution fails us, we use ev_rt_now */ |
3711 | /* when resolution fails us, we use ev_rt_now */ |
3144 | if (expect_false (nat == at)) |
3712 | if (ecb_expect_false (nat == at)) |
3145 | { |
3713 | { |
3146 | at = ev_rt_now; |
3714 | at = ev_rt_now; |
3147 | break; |
3715 | break; |
3148 | } |
3716 | } |
3149 | |
3717 | |
… | |
… | |
3195 | } |
3763 | } |
3196 | } |
3764 | } |
3197 | |
3765 | |
3198 | /* simply recalculate all periodics */ |
3766 | /* simply recalculate all periodics */ |
3199 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3767 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3200 | static void noinline ecb_cold |
3768 | ecb_noinline ecb_cold |
|
|
3769 | static void |
3201 | periodics_reschedule (EV_P) |
3770 | periodics_reschedule (EV_P) |
3202 | { |
3771 | { |
3203 | int i; |
3772 | int i; |
3204 | |
3773 | |
3205 | /* adjust periodics after time jump */ |
3774 | /* adjust periodics after time jump */ |
… | |
… | |
3218 | reheap (periodics, periodiccnt); |
3787 | reheap (periodics, periodiccnt); |
3219 | } |
3788 | } |
3220 | #endif |
3789 | #endif |
3221 | |
3790 | |
3222 | /* adjust all timers by a given offset */ |
3791 | /* adjust all timers by a given offset */ |
3223 | static void noinline ecb_cold |
3792 | ecb_noinline ecb_cold |
|
|
3793 | static void |
3224 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3794 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3225 | { |
3795 | { |
3226 | int i; |
3796 | int i; |
3227 | |
3797 | |
3228 | for (i = 0; i < timercnt; ++i) |
3798 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3237 | /* also detect if there was a timejump, and act accordingly */ |
3807 | /* also detect if there was a timejump, and act accordingly */ |
3238 | inline_speed void |
3808 | inline_speed void |
3239 | time_update (EV_P_ ev_tstamp max_block) |
3809 | time_update (EV_P_ ev_tstamp max_block) |
3240 | { |
3810 | { |
3241 | #if EV_USE_MONOTONIC |
3811 | #if EV_USE_MONOTONIC |
3242 | if (expect_true (have_monotonic)) |
3812 | if (ecb_expect_true (have_monotonic)) |
3243 | { |
3813 | { |
3244 | int i; |
3814 | int i; |
3245 | ev_tstamp odiff = rtmn_diff; |
3815 | ev_tstamp odiff = rtmn_diff; |
3246 | |
3816 | |
3247 | mn_now = get_clock (); |
3817 | mn_now = get_clock (); |
3248 | |
3818 | |
3249 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3819 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3250 | /* interpolate in the meantime */ |
3820 | /* interpolate in the meantime */ |
3251 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3821 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
3252 | { |
3822 | { |
3253 | ev_rt_now = rtmn_diff + mn_now; |
3823 | ev_rt_now = rtmn_diff + mn_now; |
3254 | return; |
3824 | return; |
3255 | } |
3825 | } |
3256 | |
3826 | |
… | |
… | |
3270 | ev_tstamp diff; |
3840 | ev_tstamp diff; |
3271 | rtmn_diff = ev_rt_now - mn_now; |
3841 | rtmn_diff = ev_rt_now - mn_now; |
3272 | |
3842 | |
3273 | diff = odiff - rtmn_diff; |
3843 | diff = odiff - rtmn_diff; |
3274 | |
3844 | |
3275 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3845 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
3276 | return; /* all is well */ |
3846 | return; /* all is well */ |
3277 | |
3847 | |
3278 | ev_rt_now = ev_time (); |
3848 | ev_rt_now = ev_time (); |
3279 | mn_now = get_clock (); |
3849 | mn_now = get_clock (); |
3280 | now_floor = mn_now; |
3850 | now_floor = mn_now; |
… | |
… | |
3289 | else |
3859 | else |
3290 | #endif |
3860 | #endif |
3291 | { |
3861 | { |
3292 | ev_rt_now = ev_time (); |
3862 | ev_rt_now = ev_time (); |
3293 | |
3863 | |
3294 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3864 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
3295 | { |
3865 | { |
3296 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3866 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3297 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3867 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3298 | #if EV_PERIODIC_ENABLE |
3868 | #if EV_PERIODIC_ENABLE |
3299 | periodics_reschedule (EV_A); |
3869 | periodics_reschedule (EV_A); |
… | |
… | |
3322 | #if EV_VERIFY >= 2 |
3892 | #if EV_VERIFY >= 2 |
3323 | ev_verify (EV_A); |
3893 | ev_verify (EV_A); |
3324 | #endif |
3894 | #endif |
3325 | |
3895 | |
3326 | #ifndef _WIN32 |
3896 | #ifndef _WIN32 |
3327 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3897 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3328 | if (expect_false (getpid () != curpid)) |
3898 | if (ecb_expect_false (getpid () != curpid)) |
3329 | { |
3899 | { |
3330 | curpid = getpid (); |
3900 | curpid = getpid (); |
3331 | postfork = 1; |
3901 | postfork = 1; |
3332 | } |
3902 | } |
3333 | #endif |
3903 | #endif |
3334 | |
3904 | |
3335 | #if EV_FORK_ENABLE |
3905 | #if EV_FORK_ENABLE |
3336 | /* we might have forked, so queue fork handlers */ |
3906 | /* we might have forked, so queue fork handlers */ |
3337 | if (expect_false (postfork)) |
3907 | if (ecb_expect_false (postfork)) |
3338 | if (forkcnt) |
3908 | if (forkcnt) |
3339 | { |
3909 | { |
3340 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3910 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3341 | EV_INVOKE_PENDING; |
3911 | EV_INVOKE_PENDING; |
3342 | } |
3912 | } |
3343 | #endif |
3913 | #endif |
3344 | |
3914 | |
3345 | #if EV_PREPARE_ENABLE |
3915 | #if EV_PREPARE_ENABLE |
3346 | /* queue prepare watchers (and execute them) */ |
3916 | /* queue prepare watchers (and execute them) */ |
3347 | if (expect_false (preparecnt)) |
3917 | if (ecb_expect_false (preparecnt)) |
3348 | { |
3918 | { |
3349 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3919 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3350 | EV_INVOKE_PENDING; |
3920 | EV_INVOKE_PENDING; |
3351 | } |
3921 | } |
3352 | #endif |
3922 | #endif |
3353 | |
3923 | |
3354 | if (expect_false (loop_done)) |
3924 | if (ecb_expect_false (loop_done)) |
3355 | break; |
3925 | break; |
3356 | |
3926 | |
3357 | /* we might have forked, so reify kernel state if necessary */ |
3927 | /* we might have forked, so reify kernel state if necessary */ |
3358 | if (expect_false (postfork)) |
3928 | if (ecb_expect_false (postfork)) |
3359 | loop_fork (EV_A); |
3929 | loop_fork (EV_A); |
3360 | |
3930 | |
3361 | /* update fd-related kernel structures */ |
3931 | /* update fd-related kernel structures */ |
3362 | fd_reify (EV_A); |
3932 | fd_reify (EV_A); |
3363 | |
3933 | |
… | |
… | |
3368 | |
3938 | |
3369 | /* remember old timestamp for io_blocktime calculation */ |
3939 | /* remember old timestamp for io_blocktime calculation */ |
3370 | ev_tstamp prev_mn_now = mn_now; |
3940 | ev_tstamp prev_mn_now = mn_now; |
3371 | |
3941 | |
3372 | /* update time to cancel out callback processing overhead */ |
3942 | /* update time to cancel out callback processing overhead */ |
3373 | time_update (EV_A_ 1e100); |
3943 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3374 | |
3944 | |
3375 | /* from now on, we want a pipe-wake-up */ |
3945 | /* from now on, we want a pipe-wake-up */ |
3376 | pipe_write_wanted = 1; |
3946 | pipe_write_wanted = 1; |
3377 | |
3947 | |
3378 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3948 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3379 | |
3949 | |
3380 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3950 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3381 | { |
3951 | { |
3382 | waittime = MAX_BLOCKTIME; |
3952 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
3383 | |
3953 | |
3384 | if (timercnt) |
3954 | if (timercnt) |
3385 | { |
3955 | { |
3386 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3956 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3387 | if (waittime > to) waittime = to; |
3957 | if (waittime > to) waittime = to; |
… | |
… | |
3394 | if (waittime > to) waittime = to; |
3964 | if (waittime > to) waittime = to; |
3395 | } |
3965 | } |
3396 | #endif |
3966 | #endif |
3397 | |
3967 | |
3398 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3968 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3399 | if (expect_false (waittime < timeout_blocktime)) |
3969 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3400 | waittime = timeout_blocktime; |
3970 | waittime = timeout_blocktime; |
3401 | |
3971 | |
3402 | /* at this point, we NEED to wait, so we have to ensure */ |
3972 | /* now there are two more special cases left, either we have |
3403 | /* to pass a minimum nonzero value to the backend */ |
3973 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3974 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3975 | * amount of time for some event loop backends. |
|
|
3976 | */ |
3404 | if (expect_false (waittime < backend_mintime)) |
3977 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3978 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3979 | ? EV_TS_CONST (0.) |
3405 | waittime = backend_mintime; |
3980 | : backend_mintime; |
3406 | |
3981 | |
3407 | /* extra check because io_blocktime is commonly 0 */ |
3982 | /* extra check because io_blocktime is commonly 0 */ |
3408 | if (expect_false (io_blocktime)) |
3983 | if (ecb_expect_false (io_blocktime)) |
3409 | { |
3984 | { |
3410 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3985 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3411 | |
3986 | |
3412 | if (sleeptime > waittime - backend_mintime) |
3987 | if (sleeptime > waittime - backend_mintime) |
3413 | sleeptime = waittime - backend_mintime; |
3988 | sleeptime = waittime - backend_mintime; |
3414 | |
3989 | |
3415 | if (expect_true (sleeptime > 0.)) |
3990 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3416 | { |
3991 | { |
3417 | ev_sleep (sleeptime); |
3992 | ev_sleep (sleeptime); |
3418 | waittime -= sleeptime; |
3993 | waittime -= sleeptime; |
3419 | } |
3994 | } |
3420 | } |
3995 | } |
… | |
… | |
3434 | { |
4009 | { |
3435 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
4010 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3436 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
4011 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3437 | } |
4012 | } |
3438 | |
4013 | |
3439 | |
|
|
3440 | /* update ev_rt_now, do magic */ |
4014 | /* update ev_rt_now, do magic */ |
3441 | time_update (EV_A_ waittime + sleeptime); |
4015 | time_update (EV_A_ waittime + sleeptime); |
3442 | } |
4016 | } |
3443 | |
4017 | |
3444 | /* queue pending timers and reschedule them */ |
4018 | /* queue pending timers and reschedule them */ |
… | |
… | |
3452 | idle_reify (EV_A); |
4026 | idle_reify (EV_A); |
3453 | #endif |
4027 | #endif |
3454 | |
4028 | |
3455 | #if EV_CHECK_ENABLE |
4029 | #if EV_CHECK_ENABLE |
3456 | /* queue check watchers, to be executed first */ |
4030 | /* queue check watchers, to be executed first */ |
3457 | if (expect_false (checkcnt)) |
4031 | if (ecb_expect_false (checkcnt)) |
3458 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4032 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3459 | #endif |
4033 | #endif |
3460 | |
4034 | |
3461 | EV_INVOKE_PENDING; |
4035 | EV_INVOKE_PENDING; |
3462 | } |
4036 | } |
3463 | while (expect_true ( |
4037 | while (ecb_expect_true ( |
3464 | activecnt |
4038 | activecnt |
3465 | && !loop_done |
4039 | && !loop_done |
3466 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4040 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3467 | )); |
4041 | )); |
3468 | |
4042 | |
… | |
… | |
3475 | |
4049 | |
3476 | return activecnt; |
4050 | return activecnt; |
3477 | } |
4051 | } |
3478 | |
4052 | |
3479 | void |
4053 | void |
3480 | ev_break (EV_P_ int how) EV_THROW |
4054 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3481 | { |
4055 | { |
3482 | loop_done = how; |
4056 | loop_done = how; |
3483 | } |
4057 | } |
3484 | |
4058 | |
3485 | void |
4059 | void |
3486 | ev_ref (EV_P) EV_THROW |
4060 | ev_ref (EV_P) EV_NOEXCEPT |
3487 | { |
4061 | { |
3488 | ++activecnt; |
4062 | ++activecnt; |
3489 | } |
4063 | } |
3490 | |
4064 | |
3491 | void |
4065 | void |
3492 | ev_unref (EV_P) EV_THROW |
4066 | ev_unref (EV_P) EV_NOEXCEPT |
3493 | { |
4067 | { |
3494 | --activecnt; |
4068 | --activecnt; |
3495 | } |
4069 | } |
3496 | |
4070 | |
3497 | void |
4071 | void |
3498 | ev_now_update (EV_P) EV_THROW |
4072 | ev_now_update (EV_P) EV_NOEXCEPT |
3499 | { |
4073 | { |
3500 | time_update (EV_A_ 1e100); |
4074 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3501 | } |
4075 | } |
3502 | |
4076 | |
3503 | void |
4077 | void |
3504 | ev_suspend (EV_P) EV_THROW |
4078 | ev_suspend (EV_P) EV_NOEXCEPT |
3505 | { |
4079 | { |
3506 | ev_now_update (EV_A); |
4080 | ev_now_update (EV_A); |
3507 | } |
4081 | } |
3508 | |
4082 | |
3509 | void |
4083 | void |
3510 | ev_resume (EV_P) EV_THROW |
4084 | ev_resume (EV_P) EV_NOEXCEPT |
3511 | { |
4085 | { |
3512 | ev_tstamp mn_prev = mn_now; |
4086 | ev_tstamp mn_prev = mn_now; |
3513 | |
4087 | |
3514 | ev_now_update (EV_A); |
4088 | ev_now_update (EV_A); |
3515 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4089 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3532 | inline_size void |
4106 | inline_size void |
3533 | wlist_del (WL *head, WL elem) |
4107 | wlist_del (WL *head, WL elem) |
3534 | { |
4108 | { |
3535 | while (*head) |
4109 | while (*head) |
3536 | { |
4110 | { |
3537 | if (expect_true (*head == elem)) |
4111 | if (ecb_expect_true (*head == elem)) |
3538 | { |
4112 | { |
3539 | *head = elem->next; |
4113 | *head = elem->next; |
3540 | break; |
4114 | break; |
3541 | } |
4115 | } |
3542 | |
4116 | |
… | |
… | |
3554 | w->pending = 0; |
4128 | w->pending = 0; |
3555 | } |
4129 | } |
3556 | } |
4130 | } |
3557 | |
4131 | |
3558 | int |
4132 | int |
3559 | ev_clear_pending (EV_P_ void *w) EV_THROW |
4133 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3560 | { |
4134 | { |
3561 | W w_ = (W)w; |
4135 | W w_ = (W)w; |
3562 | int pending = w_->pending; |
4136 | int pending = w_->pending; |
3563 | |
4137 | |
3564 | if (expect_true (pending)) |
4138 | if (ecb_expect_true (pending)) |
3565 | { |
4139 | { |
3566 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4140 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3567 | p->w = (W)&pending_w; |
4141 | p->w = (W)&pending_w; |
3568 | w_->pending = 0; |
4142 | w_->pending = 0; |
3569 | return p->events; |
4143 | return p->events; |
… | |
… | |
3596 | w->active = 0; |
4170 | w->active = 0; |
3597 | } |
4171 | } |
3598 | |
4172 | |
3599 | /*****************************************************************************/ |
4173 | /*****************************************************************************/ |
3600 | |
4174 | |
3601 | void noinline |
4175 | ecb_noinline |
|
|
4176 | void |
3602 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
4177 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3603 | { |
4178 | { |
3604 | int fd = w->fd; |
4179 | int fd = w->fd; |
3605 | |
4180 | |
3606 | if (expect_false (ev_is_active (w))) |
4181 | if (ecb_expect_false (ev_is_active (w))) |
3607 | return; |
4182 | return; |
3608 | |
4183 | |
3609 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4184 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3610 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4185 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3611 | |
4186 | |
|
|
4187 | #if EV_VERIFY >= 2 |
|
|
4188 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4189 | #endif |
3612 | EV_FREQUENT_CHECK; |
4190 | EV_FREQUENT_CHECK; |
3613 | |
4191 | |
3614 | ev_start (EV_A_ (W)w, 1); |
4192 | ev_start (EV_A_ (W)w, 1); |
3615 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4193 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3616 | wlist_add (&anfds[fd].head, (WL)w); |
4194 | wlist_add (&anfds[fd].head, (WL)w); |
3617 | |
4195 | |
3618 | /* common bug, apparently */ |
4196 | /* common bug, apparently */ |
3619 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
4197 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3620 | |
4198 | |
… | |
… | |
3622 | w->events &= ~EV__IOFDSET; |
4200 | w->events &= ~EV__IOFDSET; |
3623 | |
4201 | |
3624 | EV_FREQUENT_CHECK; |
4202 | EV_FREQUENT_CHECK; |
3625 | } |
4203 | } |
3626 | |
4204 | |
3627 | void noinline |
4205 | ecb_noinline |
|
|
4206 | void |
3628 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
4207 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3629 | { |
4208 | { |
3630 | clear_pending (EV_A_ (W)w); |
4209 | clear_pending (EV_A_ (W)w); |
3631 | if (expect_false (!ev_is_active (w))) |
4210 | if (ecb_expect_false (!ev_is_active (w))) |
3632 | return; |
4211 | return; |
3633 | |
4212 | |
3634 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4213 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3635 | |
4214 | |
|
|
4215 | #if EV_VERIFY >= 2 |
|
|
4216 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4217 | #endif |
3636 | EV_FREQUENT_CHECK; |
4218 | EV_FREQUENT_CHECK; |
3637 | |
4219 | |
3638 | wlist_del (&anfds[w->fd].head, (WL)w); |
4220 | wlist_del (&anfds[w->fd].head, (WL)w); |
3639 | ev_stop (EV_A_ (W)w); |
4221 | ev_stop (EV_A_ (W)w); |
3640 | |
4222 | |
3641 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4223 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3642 | |
4224 | |
3643 | EV_FREQUENT_CHECK; |
4225 | EV_FREQUENT_CHECK; |
3644 | } |
4226 | } |
3645 | |
4227 | |
3646 | void noinline |
4228 | ecb_noinline |
|
|
4229 | void |
3647 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
4230 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3648 | { |
4231 | { |
3649 | if (expect_false (ev_is_active (w))) |
4232 | if (ecb_expect_false (ev_is_active (w))) |
3650 | return; |
4233 | return; |
3651 | |
4234 | |
3652 | ev_at (w) += mn_now; |
4235 | ev_at (w) += mn_now; |
3653 | |
4236 | |
3654 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4237 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3655 | |
4238 | |
3656 | EV_FREQUENT_CHECK; |
4239 | EV_FREQUENT_CHECK; |
3657 | |
4240 | |
3658 | ++timercnt; |
4241 | ++timercnt; |
3659 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4242 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3660 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4243 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3661 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4244 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3662 | ANHE_at_cache (timers [ev_active (w)]); |
4245 | ANHE_at_cache (timers [ev_active (w)]); |
3663 | upheap (timers, ev_active (w)); |
4246 | upheap (timers, ev_active (w)); |
3664 | |
4247 | |
3665 | EV_FREQUENT_CHECK; |
4248 | EV_FREQUENT_CHECK; |
3666 | |
4249 | |
3667 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4250 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3668 | } |
4251 | } |
3669 | |
4252 | |
3670 | void noinline |
4253 | ecb_noinline |
|
|
4254 | void |
3671 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
4255 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3672 | { |
4256 | { |
3673 | clear_pending (EV_A_ (W)w); |
4257 | clear_pending (EV_A_ (W)w); |
3674 | if (expect_false (!ev_is_active (w))) |
4258 | if (ecb_expect_false (!ev_is_active (w))) |
3675 | return; |
4259 | return; |
3676 | |
4260 | |
3677 | EV_FREQUENT_CHECK; |
4261 | EV_FREQUENT_CHECK; |
3678 | |
4262 | |
3679 | { |
4263 | { |
… | |
… | |
3681 | |
4265 | |
3682 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4266 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3683 | |
4267 | |
3684 | --timercnt; |
4268 | --timercnt; |
3685 | |
4269 | |
3686 | if (expect_true (active < timercnt + HEAP0)) |
4270 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3687 | { |
4271 | { |
3688 | timers [active] = timers [timercnt + HEAP0]; |
4272 | timers [active] = timers [timercnt + HEAP0]; |
3689 | adjustheap (timers, timercnt, active); |
4273 | adjustheap (timers, timercnt, active); |
3690 | } |
4274 | } |
3691 | } |
4275 | } |
… | |
… | |
3695 | ev_stop (EV_A_ (W)w); |
4279 | ev_stop (EV_A_ (W)w); |
3696 | |
4280 | |
3697 | EV_FREQUENT_CHECK; |
4281 | EV_FREQUENT_CHECK; |
3698 | } |
4282 | } |
3699 | |
4283 | |
3700 | void noinline |
4284 | ecb_noinline |
|
|
4285 | void |
3701 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4286 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3702 | { |
4287 | { |
3703 | EV_FREQUENT_CHECK; |
4288 | EV_FREQUENT_CHECK; |
3704 | |
4289 | |
3705 | clear_pending (EV_A_ (W)w); |
4290 | clear_pending (EV_A_ (W)w); |
3706 | |
4291 | |
… | |
… | |
3723 | |
4308 | |
3724 | EV_FREQUENT_CHECK; |
4309 | EV_FREQUENT_CHECK; |
3725 | } |
4310 | } |
3726 | |
4311 | |
3727 | ev_tstamp |
4312 | ev_tstamp |
3728 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4313 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3729 | { |
4314 | { |
3730 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4315 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
3731 | } |
4316 | } |
3732 | |
4317 | |
3733 | #if EV_PERIODIC_ENABLE |
4318 | #if EV_PERIODIC_ENABLE |
3734 | void noinline |
4319 | ecb_noinline |
|
|
4320 | void |
3735 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4321 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3736 | { |
4322 | { |
3737 | if (expect_false (ev_is_active (w))) |
4323 | if (ecb_expect_false (ev_is_active (w))) |
3738 | return; |
4324 | return; |
|
|
4325 | |
|
|
4326 | #if EV_USE_TIMERFD |
|
|
4327 | if (timerfd == -2) |
|
|
4328 | evtimerfd_init (EV_A); |
|
|
4329 | #endif |
3739 | |
4330 | |
3740 | if (w->reschedule_cb) |
4331 | if (w->reschedule_cb) |
3741 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4332 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3742 | else if (w->interval) |
4333 | else if (w->interval) |
3743 | { |
4334 | { |
… | |
… | |
3749 | |
4340 | |
3750 | EV_FREQUENT_CHECK; |
4341 | EV_FREQUENT_CHECK; |
3751 | |
4342 | |
3752 | ++periodiccnt; |
4343 | ++periodiccnt; |
3753 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4344 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3754 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4345 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3755 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4346 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3756 | ANHE_at_cache (periodics [ev_active (w)]); |
4347 | ANHE_at_cache (periodics [ev_active (w)]); |
3757 | upheap (periodics, ev_active (w)); |
4348 | upheap (periodics, ev_active (w)); |
3758 | |
4349 | |
3759 | EV_FREQUENT_CHECK; |
4350 | EV_FREQUENT_CHECK; |
3760 | |
4351 | |
3761 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4352 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3762 | } |
4353 | } |
3763 | |
4354 | |
3764 | void noinline |
4355 | ecb_noinline |
|
|
4356 | void |
3765 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4357 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3766 | { |
4358 | { |
3767 | clear_pending (EV_A_ (W)w); |
4359 | clear_pending (EV_A_ (W)w); |
3768 | if (expect_false (!ev_is_active (w))) |
4360 | if (ecb_expect_false (!ev_is_active (w))) |
3769 | return; |
4361 | return; |
3770 | |
4362 | |
3771 | EV_FREQUENT_CHECK; |
4363 | EV_FREQUENT_CHECK; |
3772 | |
4364 | |
3773 | { |
4365 | { |
… | |
… | |
3775 | |
4367 | |
3776 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4368 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3777 | |
4369 | |
3778 | --periodiccnt; |
4370 | --periodiccnt; |
3779 | |
4371 | |
3780 | if (expect_true (active < periodiccnt + HEAP0)) |
4372 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3781 | { |
4373 | { |
3782 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4374 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3783 | adjustheap (periodics, periodiccnt, active); |
4375 | adjustheap (periodics, periodiccnt, active); |
3784 | } |
4376 | } |
3785 | } |
4377 | } |
… | |
… | |
3787 | ev_stop (EV_A_ (W)w); |
4379 | ev_stop (EV_A_ (W)w); |
3788 | |
4380 | |
3789 | EV_FREQUENT_CHECK; |
4381 | EV_FREQUENT_CHECK; |
3790 | } |
4382 | } |
3791 | |
4383 | |
3792 | void noinline |
4384 | ecb_noinline |
|
|
4385 | void |
3793 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4386 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3794 | { |
4387 | { |
3795 | /* TODO: use adjustheap and recalculation */ |
4388 | /* TODO: use adjustheap and recalculation */ |
3796 | ev_periodic_stop (EV_A_ w); |
4389 | ev_periodic_stop (EV_A_ w); |
3797 | ev_periodic_start (EV_A_ w); |
4390 | ev_periodic_start (EV_A_ w); |
3798 | } |
4391 | } |
… | |
… | |
3802 | # define SA_RESTART 0 |
4395 | # define SA_RESTART 0 |
3803 | #endif |
4396 | #endif |
3804 | |
4397 | |
3805 | #if EV_SIGNAL_ENABLE |
4398 | #if EV_SIGNAL_ENABLE |
3806 | |
4399 | |
3807 | void noinline |
4400 | ecb_noinline |
|
|
4401 | void |
3808 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4402 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3809 | { |
4403 | { |
3810 | if (expect_false (ev_is_active (w))) |
4404 | if (ecb_expect_false (ev_is_active (w))) |
3811 | return; |
4405 | return; |
3812 | |
4406 | |
3813 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4407 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3814 | |
4408 | |
3815 | #if EV_MULTIPLICITY |
4409 | #if EV_MULTIPLICITY |
… | |
… | |
3884 | } |
4478 | } |
3885 | |
4479 | |
3886 | EV_FREQUENT_CHECK; |
4480 | EV_FREQUENT_CHECK; |
3887 | } |
4481 | } |
3888 | |
4482 | |
3889 | void noinline |
4483 | ecb_noinline |
|
|
4484 | void |
3890 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4485 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3891 | { |
4486 | { |
3892 | clear_pending (EV_A_ (W)w); |
4487 | clear_pending (EV_A_ (W)w); |
3893 | if (expect_false (!ev_is_active (w))) |
4488 | if (ecb_expect_false (!ev_is_active (w))) |
3894 | return; |
4489 | return; |
3895 | |
4490 | |
3896 | EV_FREQUENT_CHECK; |
4491 | EV_FREQUENT_CHECK; |
3897 | |
4492 | |
3898 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4493 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3926 | #endif |
4521 | #endif |
3927 | |
4522 | |
3928 | #if EV_CHILD_ENABLE |
4523 | #if EV_CHILD_ENABLE |
3929 | |
4524 | |
3930 | void |
4525 | void |
3931 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4526 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3932 | { |
4527 | { |
3933 | #if EV_MULTIPLICITY |
4528 | #if EV_MULTIPLICITY |
3934 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4529 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3935 | #endif |
4530 | #endif |
3936 | if (expect_false (ev_is_active (w))) |
4531 | if (ecb_expect_false (ev_is_active (w))) |
3937 | return; |
4532 | return; |
3938 | |
4533 | |
3939 | EV_FREQUENT_CHECK; |
4534 | EV_FREQUENT_CHECK; |
3940 | |
4535 | |
3941 | ev_start (EV_A_ (W)w, 1); |
4536 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3943 | |
4538 | |
3944 | EV_FREQUENT_CHECK; |
4539 | EV_FREQUENT_CHECK; |
3945 | } |
4540 | } |
3946 | |
4541 | |
3947 | void |
4542 | void |
3948 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4543 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3949 | { |
4544 | { |
3950 | clear_pending (EV_A_ (W)w); |
4545 | clear_pending (EV_A_ (W)w); |
3951 | if (expect_false (!ev_is_active (w))) |
4546 | if (ecb_expect_false (!ev_is_active (w))) |
3952 | return; |
4547 | return; |
3953 | |
4548 | |
3954 | EV_FREQUENT_CHECK; |
4549 | EV_FREQUENT_CHECK; |
3955 | |
4550 | |
3956 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4551 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3970 | |
4565 | |
3971 | #define DEF_STAT_INTERVAL 5.0074891 |
4566 | #define DEF_STAT_INTERVAL 5.0074891 |
3972 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4567 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3973 | #define MIN_STAT_INTERVAL 0.1074891 |
4568 | #define MIN_STAT_INTERVAL 0.1074891 |
3974 | |
4569 | |
3975 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4570 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3976 | |
4571 | |
3977 | #if EV_USE_INOTIFY |
4572 | #if EV_USE_INOTIFY |
3978 | |
4573 | |
3979 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4574 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3980 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4575 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3981 | |
4576 | |
3982 | static void noinline |
4577 | ecb_noinline |
|
|
4578 | static void |
3983 | infy_add (EV_P_ ev_stat *w) |
4579 | infy_add (EV_P_ ev_stat *w) |
3984 | { |
4580 | { |
3985 | w->wd = inotify_add_watch (fs_fd, w->path, |
4581 | w->wd = inotify_add_watch (fs_fd, w->path, |
3986 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4582 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3987 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4583 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
4051 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4647 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4052 | ev_timer_again (EV_A_ &w->timer); |
4648 | ev_timer_again (EV_A_ &w->timer); |
4053 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4649 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4054 | } |
4650 | } |
4055 | |
4651 | |
4056 | static void noinline |
4652 | ecb_noinline |
|
|
4653 | static void |
4057 | infy_del (EV_P_ ev_stat *w) |
4654 | infy_del (EV_P_ ev_stat *w) |
4058 | { |
4655 | { |
4059 | int slot; |
4656 | int slot; |
4060 | int wd = w->wd; |
4657 | int wd = w->wd; |
4061 | |
4658 | |
… | |
… | |
4068 | |
4665 | |
4069 | /* remove this watcher, if others are watching it, they will rearm */ |
4666 | /* remove this watcher, if others are watching it, they will rearm */ |
4070 | inotify_rm_watch (fs_fd, wd); |
4667 | inotify_rm_watch (fs_fd, wd); |
4071 | } |
4668 | } |
4072 | |
4669 | |
4073 | static void noinline |
4670 | ecb_noinline |
|
|
4671 | static void |
4074 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4672 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4075 | { |
4673 | { |
4076 | if (slot < 0) |
4674 | if (slot < 0) |
4077 | /* overflow, need to check for all hash slots */ |
4675 | /* overflow, need to check for all hash slots */ |
4078 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4676 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4114 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4712 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4115 | ofs += sizeof (struct inotify_event) + ev->len; |
4713 | ofs += sizeof (struct inotify_event) + ev->len; |
4116 | } |
4714 | } |
4117 | } |
4715 | } |
4118 | |
4716 | |
4119 | inline_size void ecb_cold |
4717 | inline_size ecb_cold |
|
|
4718 | void |
4120 | ev_check_2625 (EV_P) |
4719 | ev_check_2625 (EV_P) |
4121 | { |
4720 | { |
4122 | /* kernels < 2.6.25 are borked |
4721 | /* kernels < 2.6.25 are borked |
4123 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4722 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4124 | */ |
4723 | */ |
… | |
… | |
4214 | #else |
4813 | #else |
4215 | # define EV_LSTAT(p,b) lstat (p, b) |
4814 | # define EV_LSTAT(p,b) lstat (p, b) |
4216 | #endif |
4815 | #endif |
4217 | |
4816 | |
4218 | void |
4817 | void |
4219 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4818 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4220 | { |
4819 | { |
4221 | if (lstat (w->path, &w->attr) < 0) |
4820 | if (lstat (w->path, &w->attr) < 0) |
4222 | w->attr.st_nlink = 0; |
4821 | w->attr.st_nlink = 0; |
4223 | else if (!w->attr.st_nlink) |
4822 | else if (!w->attr.st_nlink) |
4224 | w->attr.st_nlink = 1; |
4823 | w->attr.st_nlink = 1; |
4225 | } |
4824 | } |
4226 | |
4825 | |
4227 | static void noinline |
4826 | ecb_noinline |
|
|
4827 | static void |
4228 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4828 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4229 | { |
4829 | { |
4230 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4830 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4231 | |
4831 | |
4232 | ev_statdata prev = w->attr; |
4832 | ev_statdata prev = w->attr; |
… | |
… | |
4263 | ev_feed_event (EV_A_ w, EV_STAT); |
4863 | ev_feed_event (EV_A_ w, EV_STAT); |
4264 | } |
4864 | } |
4265 | } |
4865 | } |
4266 | |
4866 | |
4267 | void |
4867 | void |
4268 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4868 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4269 | { |
4869 | { |
4270 | if (expect_false (ev_is_active (w))) |
4870 | if (ecb_expect_false (ev_is_active (w))) |
4271 | return; |
4871 | return; |
4272 | |
4872 | |
4273 | ev_stat_stat (EV_A_ w); |
4873 | ev_stat_stat (EV_A_ w); |
4274 | |
4874 | |
4275 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4875 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4294 | |
4894 | |
4295 | EV_FREQUENT_CHECK; |
4895 | EV_FREQUENT_CHECK; |
4296 | } |
4896 | } |
4297 | |
4897 | |
4298 | void |
4898 | void |
4299 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4899 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4300 | { |
4900 | { |
4301 | clear_pending (EV_A_ (W)w); |
4901 | clear_pending (EV_A_ (W)w); |
4302 | if (expect_false (!ev_is_active (w))) |
4902 | if (ecb_expect_false (!ev_is_active (w))) |
4303 | return; |
4903 | return; |
4304 | |
4904 | |
4305 | EV_FREQUENT_CHECK; |
4905 | EV_FREQUENT_CHECK; |
4306 | |
4906 | |
4307 | #if EV_USE_INOTIFY |
4907 | #if EV_USE_INOTIFY |
… | |
… | |
4320 | } |
4920 | } |
4321 | #endif |
4921 | #endif |
4322 | |
4922 | |
4323 | #if EV_IDLE_ENABLE |
4923 | #if EV_IDLE_ENABLE |
4324 | void |
4924 | void |
4325 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4925 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4326 | { |
4926 | { |
4327 | if (expect_false (ev_is_active (w))) |
4927 | if (ecb_expect_false (ev_is_active (w))) |
4328 | return; |
4928 | return; |
4329 | |
4929 | |
4330 | pri_adjust (EV_A_ (W)w); |
4930 | pri_adjust (EV_A_ (W)w); |
4331 | |
4931 | |
4332 | EV_FREQUENT_CHECK; |
4932 | EV_FREQUENT_CHECK; |
… | |
… | |
4335 | int active = ++idlecnt [ABSPRI (w)]; |
4935 | int active = ++idlecnt [ABSPRI (w)]; |
4336 | |
4936 | |
4337 | ++idleall; |
4937 | ++idleall; |
4338 | ev_start (EV_A_ (W)w, active); |
4938 | ev_start (EV_A_ (W)w, active); |
4339 | |
4939 | |
4340 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4940 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4341 | idles [ABSPRI (w)][active - 1] = w; |
4941 | idles [ABSPRI (w)][active - 1] = w; |
4342 | } |
4942 | } |
4343 | |
4943 | |
4344 | EV_FREQUENT_CHECK; |
4944 | EV_FREQUENT_CHECK; |
4345 | } |
4945 | } |
4346 | |
4946 | |
4347 | void |
4947 | void |
4348 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4948 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4349 | { |
4949 | { |
4350 | clear_pending (EV_A_ (W)w); |
4950 | clear_pending (EV_A_ (W)w); |
4351 | if (expect_false (!ev_is_active (w))) |
4951 | if (ecb_expect_false (!ev_is_active (w))) |
4352 | return; |
4952 | return; |
4353 | |
4953 | |
4354 | EV_FREQUENT_CHECK; |
4954 | EV_FREQUENT_CHECK; |
4355 | |
4955 | |
4356 | { |
4956 | { |
… | |
… | |
4367 | } |
4967 | } |
4368 | #endif |
4968 | #endif |
4369 | |
4969 | |
4370 | #if EV_PREPARE_ENABLE |
4970 | #if EV_PREPARE_ENABLE |
4371 | void |
4971 | void |
4372 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4972 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4373 | { |
4973 | { |
4374 | if (expect_false (ev_is_active (w))) |
4974 | if (ecb_expect_false (ev_is_active (w))) |
4375 | return; |
4975 | return; |
4376 | |
4976 | |
4377 | EV_FREQUENT_CHECK; |
4977 | EV_FREQUENT_CHECK; |
4378 | |
4978 | |
4379 | ev_start (EV_A_ (W)w, ++preparecnt); |
4979 | ev_start (EV_A_ (W)w, ++preparecnt); |
4380 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4980 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4381 | prepares [preparecnt - 1] = w; |
4981 | prepares [preparecnt - 1] = w; |
4382 | |
4982 | |
4383 | EV_FREQUENT_CHECK; |
4983 | EV_FREQUENT_CHECK; |
4384 | } |
4984 | } |
4385 | |
4985 | |
4386 | void |
4986 | void |
4387 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4987 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4388 | { |
4988 | { |
4389 | clear_pending (EV_A_ (W)w); |
4989 | clear_pending (EV_A_ (W)w); |
4390 | if (expect_false (!ev_is_active (w))) |
4990 | if (ecb_expect_false (!ev_is_active (w))) |
4391 | return; |
4991 | return; |
4392 | |
4992 | |
4393 | EV_FREQUENT_CHECK; |
4993 | EV_FREQUENT_CHECK; |
4394 | |
4994 | |
4395 | { |
4995 | { |
… | |
… | |
4405 | } |
5005 | } |
4406 | #endif |
5006 | #endif |
4407 | |
5007 | |
4408 | #if EV_CHECK_ENABLE |
5008 | #if EV_CHECK_ENABLE |
4409 | void |
5009 | void |
4410 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
5010 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4411 | { |
5011 | { |
4412 | if (expect_false (ev_is_active (w))) |
5012 | if (ecb_expect_false (ev_is_active (w))) |
4413 | return; |
5013 | return; |
4414 | |
5014 | |
4415 | EV_FREQUENT_CHECK; |
5015 | EV_FREQUENT_CHECK; |
4416 | |
5016 | |
4417 | ev_start (EV_A_ (W)w, ++checkcnt); |
5017 | ev_start (EV_A_ (W)w, ++checkcnt); |
4418 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5018 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4419 | checks [checkcnt - 1] = w; |
5019 | checks [checkcnt - 1] = w; |
4420 | |
5020 | |
4421 | EV_FREQUENT_CHECK; |
5021 | EV_FREQUENT_CHECK; |
4422 | } |
5022 | } |
4423 | |
5023 | |
4424 | void |
5024 | void |
4425 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
5025 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4426 | { |
5026 | { |
4427 | clear_pending (EV_A_ (W)w); |
5027 | clear_pending (EV_A_ (W)w); |
4428 | if (expect_false (!ev_is_active (w))) |
5028 | if (ecb_expect_false (!ev_is_active (w))) |
4429 | return; |
5029 | return; |
4430 | |
5030 | |
4431 | EV_FREQUENT_CHECK; |
5031 | EV_FREQUENT_CHECK; |
4432 | |
5032 | |
4433 | { |
5033 | { |
… | |
… | |
4442 | EV_FREQUENT_CHECK; |
5042 | EV_FREQUENT_CHECK; |
4443 | } |
5043 | } |
4444 | #endif |
5044 | #endif |
4445 | |
5045 | |
4446 | #if EV_EMBED_ENABLE |
5046 | #if EV_EMBED_ENABLE |
4447 | void noinline |
5047 | ecb_noinline |
|
|
5048 | void |
4448 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
5049 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4449 | { |
5050 | { |
4450 | ev_run (w->other, EVRUN_NOWAIT); |
5051 | ev_run (w->other, EVRUN_NOWAIT); |
4451 | } |
5052 | } |
4452 | |
5053 | |
4453 | static void |
5054 | static void |
… | |
… | |
4501 | ev_idle_stop (EV_A_ idle); |
5102 | ev_idle_stop (EV_A_ idle); |
4502 | } |
5103 | } |
4503 | #endif |
5104 | #endif |
4504 | |
5105 | |
4505 | void |
5106 | void |
4506 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
5107 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4507 | { |
5108 | { |
4508 | if (expect_false (ev_is_active (w))) |
5109 | if (ecb_expect_false (ev_is_active (w))) |
4509 | return; |
5110 | return; |
4510 | |
5111 | |
4511 | { |
5112 | { |
4512 | EV_P = w->other; |
5113 | EV_P = w->other; |
4513 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5114 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4532 | |
5133 | |
4533 | EV_FREQUENT_CHECK; |
5134 | EV_FREQUENT_CHECK; |
4534 | } |
5135 | } |
4535 | |
5136 | |
4536 | void |
5137 | void |
4537 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
5138 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4538 | { |
5139 | { |
4539 | clear_pending (EV_A_ (W)w); |
5140 | clear_pending (EV_A_ (W)w); |
4540 | if (expect_false (!ev_is_active (w))) |
5141 | if (ecb_expect_false (!ev_is_active (w))) |
4541 | return; |
5142 | return; |
4542 | |
5143 | |
4543 | EV_FREQUENT_CHECK; |
5144 | EV_FREQUENT_CHECK; |
4544 | |
5145 | |
4545 | ev_io_stop (EV_A_ &w->io); |
5146 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
4552 | } |
5153 | } |
4553 | #endif |
5154 | #endif |
4554 | |
5155 | |
4555 | #if EV_FORK_ENABLE |
5156 | #if EV_FORK_ENABLE |
4556 | void |
5157 | void |
4557 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
5158 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4558 | { |
5159 | { |
4559 | if (expect_false (ev_is_active (w))) |
5160 | if (ecb_expect_false (ev_is_active (w))) |
4560 | return; |
5161 | return; |
4561 | |
5162 | |
4562 | EV_FREQUENT_CHECK; |
5163 | EV_FREQUENT_CHECK; |
4563 | |
5164 | |
4564 | ev_start (EV_A_ (W)w, ++forkcnt); |
5165 | ev_start (EV_A_ (W)w, ++forkcnt); |
4565 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5166 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4566 | forks [forkcnt - 1] = w; |
5167 | forks [forkcnt - 1] = w; |
4567 | |
5168 | |
4568 | EV_FREQUENT_CHECK; |
5169 | EV_FREQUENT_CHECK; |
4569 | } |
5170 | } |
4570 | |
5171 | |
4571 | void |
5172 | void |
4572 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
5173 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4573 | { |
5174 | { |
4574 | clear_pending (EV_A_ (W)w); |
5175 | clear_pending (EV_A_ (W)w); |
4575 | if (expect_false (!ev_is_active (w))) |
5176 | if (ecb_expect_false (!ev_is_active (w))) |
4576 | return; |
5177 | return; |
4577 | |
5178 | |
4578 | EV_FREQUENT_CHECK; |
5179 | EV_FREQUENT_CHECK; |
4579 | |
5180 | |
4580 | { |
5181 | { |
… | |
… | |
4590 | } |
5191 | } |
4591 | #endif |
5192 | #endif |
4592 | |
5193 | |
4593 | #if EV_CLEANUP_ENABLE |
5194 | #if EV_CLEANUP_ENABLE |
4594 | void |
5195 | void |
4595 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
5196 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4596 | { |
5197 | { |
4597 | if (expect_false (ev_is_active (w))) |
5198 | if (ecb_expect_false (ev_is_active (w))) |
4598 | return; |
5199 | return; |
4599 | |
5200 | |
4600 | EV_FREQUENT_CHECK; |
5201 | EV_FREQUENT_CHECK; |
4601 | |
5202 | |
4602 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5203 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4603 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5204 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4604 | cleanups [cleanupcnt - 1] = w; |
5205 | cleanups [cleanupcnt - 1] = w; |
4605 | |
5206 | |
4606 | /* cleanup watchers should never keep a refcount on the loop */ |
5207 | /* cleanup watchers should never keep a refcount on the loop */ |
4607 | ev_unref (EV_A); |
5208 | ev_unref (EV_A); |
4608 | EV_FREQUENT_CHECK; |
5209 | EV_FREQUENT_CHECK; |
4609 | } |
5210 | } |
4610 | |
5211 | |
4611 | void |
5212 | void |
4612 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
5213 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4613 | { |
5214 | { |
4614 | clear_pending (EV_A_ (W)w); |
5215 | clear_pending (EV_A_ (W)w); |
4615 | if (expect_false (!ev_is_active (w))) |
5216 | if (ecb_expect_false (!ev_is_active (w))) |
4616 | return; |
5217 | return; |
4617 | |
5218 | |
4618 | EV_FREQUENT_CHECK; |
5219 | EV_FREQUENT_CHECK; |
4619 | ev_ref (EV_A); |
5220 | ev_ref (EV_A); |
4620 | |
5221 | |
… | |
… | |
4631 | } |
5232 | } |
4632 | #endif |
5233 | #endif |
4633 | |
5234 | |
4634 | #if EV_ASYNC_ENABLE |
5235 | #if EV_ASYNC_ENABLE |
4635 | void |
5236 | void |
4636 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
5237 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4637 | { |
5238 | { |
4638 | if (expect_false (ev_is_active (w))) |
5239 | if (ecb_expect_false (ev_is_active (w))) |
4639 | return; |
5240 | return; |
4640 | |
5241 | |
4641 | w->sent = 0; |
5242 | w->sent = 0; |
4642 | |
5243 | |
4643 | evpipe_init (EV_A); |
5244 | evpipe_init (EV_A); |
4644 | |
5245 | |
4645 | EV_FREQUENT_CHECK; |
5246 | EV_FREQUENT_CHECK; |
4646 | |
5247 | |
4647 | ev_start (EV_A_ (W)w, ++asynccnt); |
5248 | ev_start (EV_A_ (W)w, ++asynccnt); |
4648 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5249 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4649 | asyncs [asynccnt - 1] = w; |
5250 | asyncs [asynccnt - 1] = w; |
4650 | |
5251 | |
4651 | EV_FREQUENT_CHECK; |
5252 | EV_FREQUENT_CHECK; |
4652 | } |
5253 | } |
4653 | |
5254 | |
4654 | void |
5255 | void |
4655 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
5256 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4656 | { |
5257 | { |
4657 | clear_pending (EV_A_ (W)w); |
5258 | clear_pending (EV_A_ (W)w); |
4658 | if (expect_false (!ev_is_active (w))) |
5259 | if (ecb_expect_false (!ev_is_active (w))) |
4659 | return; |
5260 | return; |
4660 | |
5261 | |
4661 | EV_FREQUENT_CHECK; |
5262 | EV_FREQUENT_CHECK; |
4662 | |
5263 | |
4663 | { |
5264 | { |
… | |
… | |
4671 | |
5272 | |
4672 | EV_FREQUENT_CHECK; |
5273 | EV_FREQUENT_CHECK; |
4673 | } |
5274 | } |
4674 | |
5275 | |
4675 | void |
5276 | void |
4676 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5277 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4677 | { |
5278 | { |
4678 | w->sent = 1; |
5279 | w->sent = 1; |
4679 | evpipe_write (EV_A_ &async_pending); |
5280 | evpipe_write (EV_A_ &async_pending); |
4680 | } |
5281 | } |
4681 | #endif |
5282 | #endif |
… | |
… | |
4718 | |
5319 | |
4719 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5320 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4720 | } |
5321 | } |
4721 | |
5322 | |
4722 | void |
5323 | void |
4723 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5324 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4724 | { |
5325 | { |
4725 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5326 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4726 | |
|
|
4727 | if (expect_false (!once)) |
|
|
4728 | { |
|
|
4729 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4730 | return; |
|
|
4731 | } |
|
|
4732 | |
5327 | |
4733 | once->cb = cb; |
5328 | once->cb = cb; |
4734 | once->arg = arg; |
5329 | once->arg = arg; |
4735 | |
5330 | |
4736 | ev_init (&once->io, once_cb_io); |
5331 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4749 | } |
5344 | } |
4750 | |
5345 | |
4751 | /*****************************************************************************/ |
5346 | /*****************************************************************************/ |
4752 | |
5347 | |
4753 | #if EV_WALK_ENABLE |
5348 | #if EV_WALK_ENABLE |
4754 | void ecb_cold |
5349 | ecb_cold |
|
|
5350 | void |
4755 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5351 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4756 | { |
5352 | { |
4757 | int i, j; |
5353 | int i, j; |
4758 | ev_watcher_list *wl, *wn; |
5354 | ev_watcher_list *wl, *wn; |
4759 | |
5355 | |
4760 | if (types & (EV_IO | EV_EMBED)) |
5356 | if (types & (EV_IO | EV_EMBED)) |