1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
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|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
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|
53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
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 | |
165 | #endif |
183 | #endif |
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184 | |
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185 | /* OS X, in its infinite idiocy, actually HARDCODES |
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186 | * a limit of 1024 into their select. Where people have brains, |
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187 | * OS X engineers apparently have a vacuum. Or maybe they were |
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188 | * ordered to have a vacuum, or they do anything for money. |
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189 | * This might help. Or not. |
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190 | * Note that this must be defined early, as other include files |
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191 | * will rely on this define as well. |
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192 | */ |
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193 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
194 | |
167 | #include <stdlib.h> |
195 | #include <stdlib.h> |
168 | #include <string.h> |
196 | #include <string.h> |
169 | #include <fcntl.h> |
197 | #include <fcntl.h> |
170 | #include <stddef.h> |
198 | #include <stddef.h> |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
236 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
237 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
238 | # endif |
211 | # undef EV_AVOID_STDIO |
239 | # undef EV_AVOID_STDIO |
212 | #endif |
240 | #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 | |
241 | |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
242 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
223 | |
243 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
244 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
245 | #if defined EV_NSIG |
… | |
… | |
256 | # else |
276 | # else |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
277 | # define EV_USE_CLOCK_SYSCALL 0 |
258 | # endif |
278 | # endif |
259 | #endif |
279 | #endif |
260 | |
280 | |
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281 | #if !(_POSIX_TIMERS > 0) |
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282 | # ifndef EV_USE_MONOTONIC |
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283 | # define EV_USE_MONOTONIC 0 |
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284 | # endif |
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285 | # ifndef EV_USE_REALTIME |
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286 | # define EV_USE_REALTIME 0 |
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287 | # endif |
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288 | #endif |
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289 | |
261 | #ifndef EV_USE_MONOTONIC |
290 | #ifndef EV_USE_MONOTONIC |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
291 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
292 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
264 | # else |
293 | # else |
265 | # define EV_USE_MONOTONIC 0 |
294 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
304 | |
333 | |
305 | #ifndef EV_USE_PORT |
334 | #ifndef EV_USE_PORT |
306 | # define EV_USE_PORT 0 |
335 | # define EV_USE_PORT 0 |
307 | #endif |
336 | #endif |
308 | |
337 | |
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338 | #ifndef EV_USE_LINUXAIO |
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339 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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340 | # define EV_USE_LINUXAIO 1 |
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341 | # else |
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342 | # define EV_USE_LINUXAIO 0 |
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343 | # endif |
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344 | #endif |
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345 | |
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346 | #ifndef EV_USE_IOURING |
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347 | # if __linux /* later checks might disable again */ |
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348 | # define EV_USE_IOURING 1 |
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349 | # else |
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350 | # define EV_USE_IOURING 0 |
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351 | # endif |
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352 | #endif |
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353 | |
309 | #ifndef EV_USE_INOTIFY |
354 | #ifndef EV_USE_INOTIFY |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
355 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
311 | # define EV_USE_INOTIFY EV_FEATURE_OS |
356 | # define EV_USE_INOTIFY EV_FEATURE_OS |
312 | # else |
357 | # else |
313 | # define EV_USE_INOTIFY 0 |
358 | # define EV_USE_INOTIFY 0 |
… | |
… | |
354 | |
399 | |
355 | #ifndef EV_HEAP_CACHE_AT |
400 | #ifndef EV_HEAP_CACHE_AT |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
401 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
357 | #endif |
402 | #endif |
358 | |
403 | |
359 | #ifdef ANDROID |
404 | #ifdef __ANDROID__ |
360 | /* supposedly, android doesn't typedef fd_mask */ |
405 | /* supposedly, android doesn't typedef fd_mask */ |
361 | # undef EV_USE_SELECT |
406 | # undef EV_USE_SELECT |
362 | # define EV_USE_SELECT 0 |
407 | # define EV_USE_SELECT 0 |
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
408 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
364 | # undef EV_USE_CLOCK_SYSCALL |
409 | # undef EV_USE_CLOCK_SYSCALL |
… | |
… | |
378 | # include <sys/syscall.h> |
423 | # include <sys/syscall.h> |
379 | # ifdef SYS_clock_gettime |
424 | # ifdef SYS_clock_gettime |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
425 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
381 | # undef EV_USE_MONOTONIC |
426 | # undef EV_USE_MONOTONIC |
382 | # define EV_USE_MONOTONIC 1 |
427 | # define EV_USE_MONOTONIC 1 |
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|
428 | # define EV_NEED_SYSCALL 1 |
383 | # else |
429 | # else |
384 | # undef EV_USE_CLOCK_SYSCALL |
430 | # undef EV_USE_CLOCK_SYSCALL |
385 | # define EV_USE_CLOCK_SYSCALL 0 |
431 | # define EV_USE_CLOCK_SYSCALL 0 |
386 | # endif |
432 | # endif |
387 | #endif |
433 | #endif |
… | |
… | |
401 | #if !EV_STAT_ENABLE |
447 | #if !EV_STAT_ENABLE |
402 | # undef EV_USE_INOTIFY |
448 | # undef EV_USE_INOTIFY |
403 | # define EV_USE_INOTIFY 0 |
449 | # define EV_USE_INOTIFY 0 |
404 | #endif |
450 | #endif |
405 | |
451 | |
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452 | #if __linux && EV_USE_IOURING |
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453 | # include <linux/version.h> |
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454 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
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455 | # undef EV_USE_IOURING |
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456 | # define EV_USE_IOURING 0 |
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457 | # endif |
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458 | #endif |
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459 | |
406 | #if !EV_USE_NANOSLEEP |
460 | #if !EV_USE_NANOSLEEP |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
461 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
408 | # if !defined _WIN32 && !defined __hpux |
462 | # if !defined _WIN32 && !defined __hpux |
409 | # include <sys/select.h> |
463 | # include <sys/select.h> |
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464 | # endif |
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465 | #endif |
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466 | |
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467 | #if EV_USE_LINUXAIO |
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468 | # include <sys/syscall.h> |
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469 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
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470 | # define EV_NEED_SYSCALL 1 |
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471 | # else |
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472 | # undef EV_USE_LINUXAIO |
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473 | # define EV_USE_LINUXAIO 0 |
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474 | # endif |
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475 | #endif |
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476 | |
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477 | #if EV_USE_IOURING |
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478 | # include <sys/syscall.h> |
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479 | # if !SYS_io_uring_setup && __linux && !__alpha |
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480 | # define SYS_io_uring_setup 425 |
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481 | # define SYS_io_uring_enter 426 |
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482 | # define SYS_io_uring_wregister 427 |
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483 | # endif |
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484 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
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485 | # define EV_NEED_SYSCALL 1 |
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486 | # else |
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487 | # undef EV_USE_IOURING |
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488 | # define EV_USE_IOURING 0 |
410 | # endif |
489 | # endif |
411 | #endif |
490 | #endif |
412 | |
491 | |
413 | #if EV_USE_INOTIFY |
492 | #if EV_USE_INOTIFY |
414 | # include <sys/statfs.h> |
493 | # include <sys/statfs.h> |
… | |
… | |
456 | uint32_t ssi_signo; |
535 | uint32_t ssi_signo; |
457 | char pad[128 - sizeof (uint32_t)]; |
536 | char pad[128 - sizeof (uint32_t)]; |
458 | }; |
537 | }; |
459 | #endif |
538 | #endif |
460 | |
539 | |
461 | /**/ |
540 | /*****************************************************************************/ |
462 | |
541 | |
463 | #if EV_VERIFY >= 3 |
542 | #if EV_VERIFY >= 3 |
464 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
543 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
465 | #else |
544 | #else |
466 | # define EV_FREQUENT_CHECK do { } while (0) |
545 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
471 | * This value is good at least till the year 4000. |
550 | * This value is good at least till the year 4000. |
472 | */ |
551 | */ |
473 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
552 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
474 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
553 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
475 | |
554 | |
476 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
555 | #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) */ |
556 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
478 | |
557 | |
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558 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
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559 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
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560 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
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561 | #define EV_TSTAMP_HUGE \ |
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562 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
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563 | : 0 < (time_t)4294967295 ? 4294967295. \ |
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564 | : 2147483647.) \ |
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565 | |
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566 | #ifndef EV_TS_CONST |
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567 | # define EV_TS_CONST(nv) nv |
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568 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
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569 | # 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) |
570 | # 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) |
571 | # 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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572 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
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573 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
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574 | #endif |
481 | |
575 | |
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
576 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
483 | /* ECB.H BEGIN */ |
577 | /* ECB.H BEGIN */ |
484 | /* |
578 | /* |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
579 | * libecb - http://software.schmorp.de/pkg/libecb |
486 | * |
580 | * |
487 | * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> |
581 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
582 | * Copyright (©) 2011 Emanuele Giaquinta |
489 | * All rights reserved. |
583 | * All rights reserved. |
490 | * |
584 | * |
491 | * Redistribution and use in source and binary forms, with or without modifica- |
585 | * Redistribution and use in source and binary forms, with or without modifica- |
492 | * tion, are permitted provided that the following conditions are met: |
586 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
600 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
601 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
602 | * 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 |
603 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
604 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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605 | * |
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606 | * Alternatively, the contents of this file may be used under the terms of |
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607 | * the GNU General Public License ("GPL") version 2 or any later version, |
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608 | * in which case the provisions of the GPL are applicable instead of |
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609 | * the above. If you wish to allow the use of your version of this file |
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610 | * only under the terms of the GPL and not to allow others to use your |
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611 | * version of this file under the BSD license, indicate your decision |
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612 | * by deleting the provisions above and replace them with the notice |
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613 | * and other provisions required by the GPL. If you do not delete the |
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614 | * provisions above, a recipient may use your version of this file under |
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615 | * either the BSD or the GPL. |
511 | */ |
616 | */ |
512 | |
617 | |
513 | #ifndef ECB_H |
618 | #ifndef ECB_H |
514 | #define ECB_H |
619 | #define ECB_H |
515 | |
620 | |
516 | /* 16 bits major, 16 bits minor */ |
621 | /* 16 bits major, 16 bits minor */ |
517 | #define ECB_VERSION 0x00010003 |
622 | #define ECB_VERSION 0x00010006 |
518 | |
623 | |
519 | #ifdef _WIN32 |
624 | #ifdef _WIN32 |
520 | typedef signed char int8_t; |
625 | typedef signed char int8_t; |
521 | typedef unsigned char uint8_t; |
626 | typedef unsigned char uint8_t; |
522 | typedef signed short int16_t; |
627 | typedef signed short int16_t; |
… | |
… | |
539 | typedef uint32_t uintptr_t; |
644 | typedef uint32_t uintptr_t; |
540 | typedef int32_t intptr_t; |
645 | typedef int32_t intptr_t; |
541 | #endif |
646 | #endif |
542 | #else |
647 | #else |
543 | #include <inttypes.h> |
648 | #include <inttypes.h> |
544 | #if UINTMAX_MAX > 0xffffffffU |
649 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
545 | #define ECB_PTRSIZE 8 |
650 | #define ECB_PTRSIZE 8 |
546 | #else |
651 | #else |
547 | #define ECB_PTRSIZE 4 |
652 | #define ECB_PTRSIZE 4 |
548 | #endif |
653 | #endif |
549 | #endif |
654 | #endif |
550 | |
655 | |
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656 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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657 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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658 | |
551 | /* work around x32 idiocy by defining proper macros */ |
659 | /* work around x32 idiocy by defining proper macros */ |
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
660 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
553 | #if _ILP32 |
661 | #if _ILP32 |
554 | #define ECB_AMD64_X32 1 |
662 | #define ECB_AMD64_X32 1 |
555 | #else |
663 | #else |
556 | #define ECB_AMD64 1 |
664 | #define ECB_AMD64 1 |
557 | #endif |
665 | #endif |
… | |
… | |
562 | * causing enormous grief in return for some better fake benchmark numbers. |
670 | * causing enormous grief in return for some better fake benchmark numbers. |
563 | * or so. |
671 | * or so. |
564 | * we try to detect these and simply assume they are not gcc - if they have |
672 | * 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. |
673 | * an issue with that they should have done it right in the first place. |
566 | */ |
674 | */ |
567 | #ifndef ECB_GCC_VERSION |
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|
568 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
675 | #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 |
676 | #define ECB_GCC_VERSION(major,minor) 0 |
570 | #else |
677 | #else |
571 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
678 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
572 | #endif |
679 | #endif |
573 | #endif |
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574 | |
680 | |
575 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
681 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
576 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
682 | |
577 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
683 | #if __clang__ && defined __has_builtin |
|
|
684 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
685 | #else |
|
|
686 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #if __clang__ && defined __has_extension |
|
|
690 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
691 | #else |
|
|
692 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
693 | #endif |
|
|
694 | |
578 | #define ECB_CPP (__cplusplus+0) |
695 | #define ECB_CPP (__cplusplus+0) |
579 | #define ECB_CPP11 (__cplusplus >= 201103L) |
696 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
697 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
698 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
699 | |
|
|
700 | #if ECB_CPP |
|
|
701 | #define ECB_C 0 |
|
|
702 | #define ECB_STDC_VERSION 0 |
|
|
703 | #else |
|
|
704 | #define ECB_C 1 |
|
|
705 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
709 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
710 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
580 | |
711 | |
581 | #if ECB_CPP |
712 | #if ECB_CPP |
582 | #define ECB_EXTERN_C extern "C" |
713 | #define ECB_EXTERN_C extern "C" |
583 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
714 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
584 | #define ECB_EXTERN_C_END } |
715 | #define ECB_EXTERN_C_END } |
… | |
… | |
599 | |
730 | |
600 | #if ECB_NO_SMP |
731 | #if ECB_NO_SMP |
601 | #define ECB_MEMORY_FENCE do { } while (0) |
732 | #define ECB_MEMORY_FENCE do { } while (0) |
602 | #endif |
733 | #endif |
603 | |
734 | |
|
|
735 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
736 | #if __xlC__ && ECB_CPP |
|
|
737 | #include <builtins.h> |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | #if 1400 <= _MSC_VER |
|
|
741 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
742 | #endif |
|
|
743 | |
604 | #ifndef ECB_MEMORY_FENCE |
744 | #ifndef ECB_MEMORY_FENCE |
605 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
745 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
746 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
606 | #if __i386 || __i386__ |
747 | #if __i386 || __i386__ |
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
748 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
749 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
750 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
610 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
751 | #elif ECB_GCC_AMD64 |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
612 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
753 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
613 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
754 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
614 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
755 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
756 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
757 | #elif defined __ARM_ARCH_2__ \ |
|
|
758 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
759 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
760 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
761 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
762 | || defined __ARM_ARCH_5TEJ__ |
|
|
763 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
616 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
764 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
617 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
765 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
766 | || defined __ARM_ARCH_6T2__ |
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
767 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
619 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
768 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
620 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
769 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
770 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
771 | #elif __aarch64__ |
|
|
772 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
622 | #elif (__sparc || __sparc__) && !__sparcv8 |
773 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
774 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
775 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
776 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
626 | #elif defined __s390__ || defined __s390x__ |
777 | #elif defined __s390__ || defined __s390x__ |
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
778 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
648 | |
799 | |
649 | #ifndef ECB_MEMORY_FENCE |
800 | #ifndef ECB_MEMORY_FENCE |
650 | #if ECB_GCC_VERSION(4,7) |
801 | #if ECB_GCC_VERSION(4,7) |
651 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
802 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
652 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
803 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
804 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
805 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
806 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
653 | |
807 | |
654 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
808 | #elif ECB_CLANG_EXTENSION(c_atomic) |
655 | * without risking compile time errors with other compilers. We *could* |
|
|
656 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
657 | * around this shit time and again. |
|
|
658 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
659 | * // see comment below (stdatomic.h) about the C11 memory model. |
809 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
810 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
661 | */ |
811 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
812 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
813 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
662 | |
814 | |
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
815 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
816 | #define ECB_MEMORY_FENCE __sync_synchronize () |
665 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
817 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
666 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
818 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
… | |
… | |
676 | #elif defined _WIN32 |
828 | #elif defined _WIN32 |
677 | #include <WinNT.h> |
829 | #include <WinNT.h> |
678 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
830 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
679 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
831 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
680 | #include <mbarrier.h> |
832 | #include <mbarrier.h> |
681 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
833 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
682 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
834 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
683 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
835 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
836 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
684 | #elif __xlC__ |
837 | #elif __xlC__ |
685 | #define ECB_MEMORY_FENCE __sync () |
838 | #define ECB_MEMORY_FENCE __sync () |
686 | #endif |
839 | #endif |
687 | #endif |
840 | #endif |
688 | |
841 | |
689 | #ifndef ECB_MEMORY_FENCE |
842 | #ifndef ECB_MEMORY_FENCE |
690 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
843 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
691 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
844 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
692 | /* not just C11 atomics and atomic accesses */ |
845 | /* not just C11 atomics and atomic accesses */ |
693 | #include <stdatomic.h> |
846 | #include <stdatomic.h> |
694 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
695 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
696 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
697 | /* for most usages, or gcc and clang have a bug */ |
|
|
698 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
699 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
700 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
847 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
701 | #endif |
850 | #endif |
702 | #endif |
851 | #endif |
703 | |
852 | |
704 | #ifndef ECB_MEMORY_FENCE |
853 | #ifndef ECB_MEMORY_FENCE |
705 | #if !ECB_AVOID_PTHREADS |
854 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
725 | |
874 | |
726 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
875 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
727 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
876 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
728 | #endif |
877 | #endif |
729 | |
878 | |
|
|
879 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
880 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
881 | #endif |
|
|
882 | |
730 | /*****************************************************************************/ |
883 | /*****************************************************************************/ |
731 | |
884 | |
732 | #if __cplusplus |
885 | #if ECB_CPP |
733 | #define ecb_inline static inline |
886 | #define ecb_inline static inline |
734 | #elif ECB_GCC_VERSION(2,5) |
887 | #elif ECB_GCC_VERSION(2,5) |
735 | #define ecb_inline static __inline__ |
888 | #define ecb_inline static __inline__ |
736 | #elif ECB_C99 |
889 | #elif ECB_C99 |
737 | #define ecb_inline static inline |
890 | #define ecb_inline static inline |
… | |
… | |
751 | |
904 | |
752 | #define ECB_CONCAT_(a, b) a ## b |
905 | #define ECB_CONCAT_(a, b) a ## b |
753 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
906 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
754 | #define ECB_STRINGIFY_(a) # a |
907 | #define ECB_STRINGIFY_(a) # a |
755 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
908 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
909 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
756 | |
910 | |
757 | #define ecb_function_ ecb_inline |
911 | #define ecb_function_ ecb_inline |
758 | |
912 | |
759 | #if ECB_GCC_VERSION(3,1) |
913 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
760 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
914 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
915 | #else |
|
|
916 | #define ecb_attribute(attrlist) |
|
|
917 | #endif |
|
|
918 | |
|
|
919 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
761 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
920 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
921 | #else |
|
|
922 | /* possible C11 impl for integral types |
|
|
923 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
924 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
925 | |
|
|
926 | #define ecb_is_constant(expr) 0 |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
762 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
930 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
931 | #else |
|
|
932 | #define ecb_expect(expr,value) (expr) |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
763 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
936 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
764 | #else |
937 | #else |
765 | #define ecb_attribute(attrlist) |
|
|
766 | #define ecb_is_constant(expr) 0 |
|
|
767 | #define ecb_expect(expr,value) (expr) |
|
|
768 | #define ecb_prefetch(addr,rw,locality) |
938 | #define ecb_prefetch(addr,rw,locality) |
769 | #endif |
939 | #endif |
770 | |
940 | |
771 | /* no emulation for ecb_decltype */ |
941 | /* no emulation for ecb_decltype */ |
772 | #if ECB_GCC_VERSION(4,5) |
942 | #if ECB_CPP11 |
|
|
943 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
944 | template<class T> struct ecb_decltype_t { typedef T type; }; |
773 | #define ecb_decltype(x) __decltype(x) |
945 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
774 | #elif ECB_GCC_VERSION(3,0) |
946 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
775 | #define ecb_decltype(x) __typeof(x) |
947 | #define ecb_decltype(x) __typeof__ (x) |
776 | #endif |
948 | #endif |
777 | |
949 | |
|
|
950 | #if _MSC_VER >= 1300 |
|
|
951 | #define ecb_deprecated __declspec (deprecated) |
|
|
952 | #else |
|
|
953 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _MSC_VER >= 1500 |
|
|
957 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
958 | #elif ECB_GCC_VERSION(4,5) |
|
|
959 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
960 | #else |
|
|
961 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | #if _MSC_VER >= 1400 |
|
|
965 | #define ecb_noinline __declspec (noinline) |
|
|
966 | #else |
778 | #define ecb_noinline ecb_attribute ((__noinline__)) |
967 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
968 | #endif |
|
|
969 | |
779 | #define ecb_unused ecb_attribute ((__unused__)) |
970 | #define ecb_unused ecb_attribute ((__unused__)) |
780 | #define ecb_const ecb_attribute ((__const__)) |
971 | #define ecb_const ecb_attribute ((__const__)) |
781 | #define ecb_pure ecb_attribute ((__pure__)) |
972 | #define ecb_pure ecb_attribute ((__pure__)) |
782 | |
973 | |
783 | #if ECB_C11 |
974 | #if ECB_C11 || __IBMC_NORETURN |
|
|
975 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
784 | #define ecb_noreturn _Noreturn |
976 | #define ecb_noreturn _Noreturn |
|
|
977 | #elif ECB_CPP11 |
|
|
978 | #define ecb_noreturn [[noreturn]] |
|
|
979 | #elif _MSC_VER >= 1200 |
|
|
980 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
981 | #define ecb_noreturn __declspec (noreturn) |
785 | #else |
982 | #else |
786 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
983 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
787 | #endif |
984 | #endif |
788 | |
985 | |
789 | #if ECB_GCC_VERSION(4,3) |
986 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
804 | /* for compatibility to the rest of the world */ |
1001 | /* for compatibility to the rest of the world */ |
805 | #define ecb_likely(expr) ecb_expect_true (expr) |
1002 | #define ecb_likely(expr) ecb_expect_true (expr) |
806 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
1003 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
807 | |
1004 | |
808 | /* count trailing zero bits and count # of one bits */ |
1005 | /* count trailing zero bits and count # of one bits */ |
809 | #if ECB_GCC_VERSION(3,4) |
1006 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1007 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1008 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1009 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
810 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
1010 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
811 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
1011 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
812 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
1012 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
813 | #define ecb_ctz32(x) __builtin_ctz (x) |
1013 | #define ecb_ctz32(x) __builtin_ctz (x) |
814 | #define ecb_ctz64(x) __builtin_ctzll (x) |
1014 | #define ecb_ctz64(x) __builtin_ctzll (x) |
815 | #define ecb_popcount32(x) __builtin_popcount (x) |
1015 | #define ecb_popcount32(x) __builtin_popcount (x) |
816 | /* no popcountll */ |
1016 | /* no popcountll */ |
817 | #else |
1017 | #else |
818 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
1018 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
819 | ecb_function_ int |
1019 | ecb_function_ ecb_const int |
820 | ecb_ctz32 (uint32_t x) |
1020 | ecb_ctz32 (uint32_t x) |
821 | { |
1021 | { |
|
|
1022 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1023 | unsigned long r; |
|
|
1024 | _BitScanForward (&r, x); |
|
|
1025 | return (int)r; |
|
|
1026 | #else |
822 | int r = 0; |
1027 | int r = 0; |
823 | |
1028 | |
824 | x &= ~x + 1; /* this isolates the lowest bit */ |
1029 | x &= ~x + 1; /* this isolates the lowest bit */ |
825 | |
1030 | |
826 | #if ECB_branchless_on_i386 |
1031 | #if ECB_branchless_on_i386 |
… | |
… | |
836 | if (x & 0xff00ff00) r += 8; |
1041 | if (x & 0xff00ff00) r += 8; |
837 | if (x & 0xffff0000) r += 16; |
1042 | if (x & 0xffff0000) r += 16; |
838 | #endif |
1043 | #endif |
839 | |
1044 | |
840 | return r; |
1045 | return r; |
|
|
1046 | #endif |
841 | } |
1047 | } |
842 | |
1048 | |
843 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1049 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
844 | ecb_function_ int |
1050 | ecb_function_ ecb_const int |
845 | ecb_ctz64 (uint64_t x) |
1051 | ecb_ctz64 (uint64_t x) |
846 | { |
1052 | { |
|
|
1053 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1054 | unsigned long r; |
|
|
1055 | _BitScanForward64 (&r, x); |
|
|
1056 | return (int)r; |
|
|
1057 | #else |
847 | int shift = x & 0xffffffffU ? 0 : 32; |
1058 | int shift = x & 0xffffffff ? 0 : 32; |
848 | return ecb_ctz32 (x >> shift) + shift; |
1059 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1060 | #endif |
849 | } |
1061 | } |
850 | |
1062 | |
851 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1063 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
852 | ecb_function_ int |
1064 | ecb_function_ ecb_const int |
853 | ecb_popcount32 (uint32_t x) |
1065 | ecb_popcount32 (uint32_t x) |
854 | { |
1066 | { |
855 | x -= (x >> 1) & 0x55555555; |
1067 | x -= (x >> 1) & 0x55555555; |
856 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1068 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
857 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1069 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
858 | x *= 0x01010101; |
1070 | x *= 0x01010101; |
859 | |
1071 | |
860 | return x >> 24; |
1072 | return x >> 24; |
861 | } |
1073 | } |
862 | |
1074 | |
863 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1075 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
864 | ecb_function_ int ecb_ld32 (uint32_t x) |
1076 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
865 | { |
1077 | { |
|
|
1078 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1079 | unsigned long r; |
|
|
1080 | _BitScanReverse (&r, x); |
|
|
1081 | return (int)r; |
|
|
1082 | #else |
866 | int r = 0; |
1083 | int r = 0; |
867 | |
1084 | |
868 | if (x >> 16) { x >>= 16; r += 16; } |
1085 | if (x >> 16) { x >>= 16; r += 16; } |
869 | if (x >> 8) { x >>= 8; r += 8; } |
1086 | if (x >> 8) { x >>= 8; r += 8; } |
870 | if (x >> 4) { x >>= 4; r += 4; } |
1087 | if (x >> 4) { x >>= 4; r += 4; } |
871 | if (x >> 2) { x >>= 2; r += 2; } |
1088 | if (x >> 2) { x >>= 2; r += 2; } |
872 | if (x >> 1) { r += 1; } |
1089 | if (x >> 1) { r += 1; } |
873 | |
1090 | |
874 | return r; |
1091 | return r; |
|
|
1092 | #endif |
875 | } |
1093 | } |
876 | |
1094 | |
877 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1095 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
878 | ecb_function_ int ecb_ld64 (uint64_t x) |
1096 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
879 | { |
1097 | { |
|
|
1098 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1099 | unsigned long r; |
|
|
1100 | _BitScanReverse64 (&r, x); |
|
|
1101 | return (int)r; |
|
|
1102 | #else |
880 | int r = 0; |
1103 | int r = 0; |
881 | |
1104 | |
882 | if (x >> 32) { x >>= 32; r += 32; } |
1105 | if (x >> 32) { x >>= 32; r += 32; } |
883 | |
1106 | |
884 | return r + ecb_ld32 (x); |
1107 | return r + ecb_ld32 (x); |
|
|
1108 | #endif |
885 | } |
1109 | } |
886 | #endif |
1110 | #endif |
887 | |
1111 | |
888 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1112 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
889 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1113 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
890 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1114 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
891 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1115 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
892 | |
1116 | |
893 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1117 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
894 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1118 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
895 | { |
1119 | { |
896 | return ( (x * 0x0802U & 0x22110U) |
1120 | return ( (x * 0x0802U & 0x22110U) |
897 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1121 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
898 | } |
1122 | } |
899 | |
1123 | |
900 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1124 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
901 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1125 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
902 | { |
1126 | { |
903 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1127 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
904 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1128 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
905 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1129 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
906 | x = ( x >> 8 ) | ( x << 8); |
1130 | x = ( x >> 8 ) | ( x << 8); |
907 | |
1131 | |
908 | return x; |
1132 | return x; |
909 | } |
1133 | } |
910 | |
1134 | |
911 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1135 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
912 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1136 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
913 | { |
1137 | { |
914 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1138 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
915 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1139 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
916 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1140 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
917 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1141 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
920 | return x; |
1144 | return x; |
921 | } |
1145 | } |
922 | |
1146 | |
923 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1147 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
924 | /* so for this version we are lazy */ |
1148 | /* so for this version we are lazy */ |
925 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1149 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
926 | ecb_function_ int |
1150 | ecb_function_ ecb_const int |
927 | ecb_popcount64 (uint64_t x) |
1151 | ecb_popcount64 (uint64_t x) |
928 | { |
1152 | { |
929 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1153 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
930 | } |
1154 | } |
931 | |
1155 | |
932 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1156 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
933 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1157 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
934 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1158 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
935 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1159 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
936 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1160 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
937 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1161 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
938 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1162 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
939 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1163 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
940 | |
1164 | |
941 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1165 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
942 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1166 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
943 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1167 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
944 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1168 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
945 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1169 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
946 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1170 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
947 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1171 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
948 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1172 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
949 | |
1173 | |
950 | #if ECB_GCC_VERSION(4,3) |
1174 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1175 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1176 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1177 | #else |
951 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1178 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1179 | #endif |
952 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1180 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
953 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1181 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1182 | #elif _MSC_VER |
|
|
1183 | #include <stdlib.h> |
|
|
1184 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1185 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1186 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
954 | #else |
1187 | #else |
955 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1188 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
956 | ecb_function_ uint16_t |
1189 | ecb_function_ ecb_const uint16_t |
957 | ecb_bswap16 (uint16_t x) |
1190 | ecb_bswap16 (uint16_t x) |
958 | { |
1191 | { |
959 | return ecb_rotl16 (x, 8); |
1192 | return ecb_rotl16 (x, 8); |
960 | } |
1193 | } |
961 | |
1194 | |
962 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1195 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
963 | ecb_function_ uint32_t |
1196 | ecb_function_ ecb_const uint32_t |
964 | ecb_bswap32 (uint32_t x) |
1197 | ecb_bswap32 (uint32_t x) |
965 | { |
1198 | { |
966 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1199 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
967 | } |
1200 | } |
968 | |
1201 | |
969 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1202 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
970 | ecb_function_ uint64_t |
1203 | ecb_function_ ecb_const uint64_t |
971 | ecb_bswap64 (uint64_t x) |
1204 | ecb_bswap64 (uint64_t x) |
972 | { |
1205 | { |
973 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1206 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
974 | } |
1207 | } |
975 | #endif |
1208 | #endif |
976 | |
1209 | |
977 | #if ECB_GCC_VERSION(4,5) |
1210 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
978 | #define ecb_unreachable() __builtin_unreachable () |
1211 | #define ecb_unreachable() __builtin_unreachable () |
979 | #else |
1212 | #else |
980 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1213 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
981 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1214 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
982 | ecb_inline void ecb_unreachable (void) { } |
1215 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
983 | #endif |
1216 | #endif |
984 | |
1217 | |
985 | /* try to tell the compiler that some condition is definitely true */ |
1218 | /* try to tell the compiler that some condition is definitely true */ |
986 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1219 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
987 | |
1220 | |
988 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1221 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
989 | ecb_inline unsigned char |
1222 | ecb_inline ecb_const uint32_t |
990 | ecb_byteorder_helper (void) |
1223 | ecb_byteorder_helper (void) |
991 | { |
1224 | { |
992 | /* the union code still generates code under pressure in gcc, */ |
1225 | /* the union code still generates code under pressure in gcc, */ |
993 | /* but less than using pointers, and always seems to */ |
1226 | /* but less than using pointers, and always seems to */ |
994 | /* successfully return a constant. */ |
1227 | /* successfully return a constant. */ |
995 | /* the reason why we have this horrible preprocessor mess */ |
1228 | /* the reason why we have this horrible preprocessor mess */ |
996 | /* is to avoid it in all cases, at least on common architectures */ |
1229 | /* is to avoid it in all cases, at least on common architectures */ |
997 | /* or when using a recent enough gcc version (>= 4.6) */ |
1230 | /* or when using a recent enough gcc version (>= 4.6) */ |
998 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
999 | return 0x44; |
|
|
1000 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1231 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1232 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1233 | #define ECB_LITTLE_ENDIAN 1 |
1001 | return 0x44; |
1234 | return 0x44332211; |
1002 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1235 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1236 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1237 | #define ECB_BIG_ENDIAN 1 |
1003 | return 0x11; |
1238 | return 0x11223344; |
1004 | #else |
1239 | #else |
1005 | union |
1240 | union |
1006 | { |
1241 | { |
|
|
1242 | uint8_t c[4]; |
1007 | uint32_t i; |
1243 | uint32_t u; |
1008 | uint8_t c; |
|
|
1009 | } u = { 0x11223344 }; |
1244 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
1010 | return u.c; |
1245 | return u.u; |
1011 | #endif |
1246 | #endif |
1012 | } |
1247 | } |
1013 | |
1248 | |
1014 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1249 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1015 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1250 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
1016 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1251 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1017 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1252 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
1018 | |
1253 | |
1019 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1254 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1020 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1255 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1021 | #else |
1256 | #else |
1022 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1257 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1023 | #endif |
1258 | #endif |
1024 | |
1259 | |
1025 | #if __cplusplus |
1260 | #if ECB_CPP |
1026 | template<typename T> |
1261 | template<typename T> |
1027 | static inline T ecb_div_rd (T val, T div) |
1262 | static inline T ecb_div_rd (T val, T div) |
1028 | { |
1263 | { |
1029 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1264 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1030 | } |
1265 | } |
… | |
… | |
1047 | } |
1282 | } |
1048 | #else |
1283 | #else |
1049 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1284 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1050 | #endif |
1285 | #endif |
1051 | |
1286 | |
|
|
1287 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1288 | ecb_function_ ecb_const uint32_t |
|
|
1289 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1290 | { |
|
|
1291 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1292 | int e = (x >> 10) & 0x001f; |
|
|
1293 | unsigned int m = x & 0x03ff; |
|
|
1294 | |
|
|
1295 | if (ecb_expect_false (e == 31)) |
|
|
1296 | /* infinity or NaN */ |
|
|
1297 | e = 255 - (127 - 15); |
|
|
1298 | else if (ecb_expect_false (!e)) |
|
|
1299 | { |
|
|
1300 | if (ecb_expect_true (!m)) |
|
|
1301 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1302 | e = 0 - (127 - 15); |
|
|
1303 | else |
|
|
1304 | { |
|
|
1305 | /* subnormal, renormalise */ |
|
|
1306 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1307 | |
|
|
1308 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1309 | e -= s - 1; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1314 | e += 127 - 15; |
|
|
1315 | |
|
|
1316 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1320 | ecb_function_ ecb_const uint16_t |
|
|
1321 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1322 | { |
|
|
1323 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1324 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1325 | unsigned int m = x & 0x007fffff; |
|
|
1326 | |
|
|
1327 | x &= 0x7fffffff; |
|
|
1328 | |
|
|
1329 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1330 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1331 | { |
|
|
1332 | /* mantissa round-to-even */ |
|
|
1333 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1334 | |
|
|
1335 | /* handle overflow */ |
|
|
1336 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1337 | { |
|
|
1338 | m >>= 1; |
|
|
1339 | e += 1; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | /* handle large numbers and infinity */ |
|
|
1346 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1347 | return s | 0x7c00; |
|
|
1348 | |
|
|
1349 | /* handle zero, subnormals and small numbers */ |
|
|
1350 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1351 | { |
|
|
1352 | /* zero */ |
|
|
1353 | if (ecb_expect_true (!x)) |
|
|
1354 | return s; |
|
|
1355 | |
|
|
1356 | /* handle subnormals */ |
|
|
1357 | |
|
|
1358 | /* too small, will be zero */ |
|
|
1359 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1360 | return s; |
|
|
1361 | |
|
|
1362 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1363 | |
|
|
1364 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1365 | { |
|
|
1366 | unsigned int bits = 14 - e; |
|
|
1367 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1368 | unsigned int even = (m >> bits) & 1; |
|
|
1369 | |
|
|
1370 | /* if this overflows, we will end up with a normalised number */ |
|
|
1371 | m = (m + half + even) >> bits; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | return s | m; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1378 | m >>= 13; |
|
|
1379 | |
|
|
1380 | return s | 0x7c00 | m | !m; |
|
|
1381 | } |
|
|
1382 | |
1052 | /*******************************************************************************/ |
1383 | /*******************************************************************************/ |
1053 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1384 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1054 | |
1385 | |
1055 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1386 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1056 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1387 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1057 | #if 0 \ |
1388 | #if 0 \ |
1058 | || __i386 || __i386__ \ |
1389 | || __i386 || __i386__ \ |
1059 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1390 | || ECB_GCC_AMD64 \ |
1060 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1391 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1061 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1062 | || defined __s390__ || defined __s390x__ \ |
1392 | || defined __s390__ || defined __s390x__ \ |
1063 | || defined __mips__ \ |
1393 | || defined __mips__ \ |
1064 | || defined __alpha__ \ |
1394 | || defined __alpha__ \ |
1065 | || defined __hppa__ \ |
1395 | || defined __hppa__ \ |
1066 | || defined __ia64__ \ |
1396 | || defined __ia64__ \ |
1067 | || defined __m68k__ \ |
1397 | || defined __m68k__ \ |
1068 | || defined __m88k__ \ |
1398 | || defined __m88k__ \ |
1069 | || defined __sh__ \ |
1399 | || defined __sh__ \ |
1070 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
1400 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1401 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1402 | || defined __aarch64__ |
1071 | #define ECB_STDFP 1 |
1403 | #define ECB_STDFP 1 |
1072 | #include <string.h> /* for memcpy */ |
1404 | #include <string.h> /* for memcpy */ |
1073 | #else |
1405 | #else |
1074 | #define ECB_STDFP 0 |
1406 | #define ECB_STDFP 0 |
1075 | #endif |
1407 | #endif |
… | |
… | |
1089 | #define ECB_NAN NAN |
1421 | #define ECB_NAN NAN |
1090 | #else |
1422 | #else |
1091 | #define ECB_NAN ECB_INFINITY |
1423 | #define ECB_NAN ECB_INFINITY |
1092 | #endif |
1424 | #endif |
1093 | |
1425 | |
1094 | /* converts an ieee half/binary16 to a float */ |
1426 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
1095 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1427 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
1096 | ecb_function_ float |
1428 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
1097 | ecb_binary16_to_float (uint16_t x) |
1429 | #else |
1098 | { |
1430 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
1099 | int e = (x >> 10) & 0x1f; |
1431 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
1100 | int m = x & 0x3ff; |
1432 | #endif |
1101 | float r; |
|
|
1102 | |
|
|
1103 | if (!e ) r = ldexpf (m , -24); |
|
|
1104 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1105 | else if (m ) r = ECB_NAN; |
|
|
1106 | else r = ECB_INFINITY; |
|
|
1107 | |
|
|
1108 | return x & 0x8000 ? -r : r; |
|
|
1109 | } |
|
|
1110 | |
1433 | |
1111 | /* convert a float to ieee single/binary32 */ |
1434 | /* convert a float to ieee single/binary32 */ |
1112 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1435 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1113 | ecb_function_ uint32_t |
1436 | ecb_function_ ecb_const uint32_t |
1114 | ecb_float_to_binary32 (float x) |
1437 | ecb_float_to_binary32 (float x) |
1115 | { |
1438 | { |
1116 | uint32_t r; |
1439 | uint32_t r; |
1117 | |
1440 | |
1118 | #if ECB_STDFP |
1441 | #if ECB_STDFP |
… | |
… | |
1125 | if (x == 0e0f ) return 0x00000000U; |
1448 | if (x == 0e0f ) return 0x00000000U; |
1126 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1449 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1127 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1450 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1128 | if (x != x ) return 0x7fbfffffU; |
1451 | if (x != x ) return 0x7fbfffffU; |
1129 | |
1452 | |
1130 | m = frexpf (x, &e) * 0x1000000U; |
1453 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1131 | |
1454 | |
1132 | r = m & 0x80000000U; |
1455 | r = m & 0x80000000U; |
1133 | |
1456 | |
1134 | if (r) |
1457 | if (r) |
1135 | m = -m; |
1458 | m = -m; |
… | |
… | |
1147 | |
1470 | |
1148 | return r; |
1471 | return r; |
1149 | } |
1472 | } |
1150 | |
1473 | |
1151 | /* converts an ieee single/binary32 to a float */ |
1474 | /* converts an ieee single/binary32 to a float */ |
1152 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1475 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1153 | ecb_function_ float |
1476 | ecb_function_ ecb_const float |
1154 | ecb_binary32_to_float (uint32_t x) |
1477 | ecb_binary32_to_float (uint32_t x) |
1155 | { |
1478 | { |
1156 | float r; |
1479 | float r; |
1157 | |
1480 | |
1158 | #if ECB_STDFP |
1481 | #if ECB_STDFP |
… | |
… | |
1168 | x |= 0x800000U; |
1491 | x |= 0x800000U; |
1169 | else |
1492 | else |
1170 | e = 1; |
1493 | e = 1; |
1171 | |
1494 | |
1172 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1495 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1173 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1496 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1174 | |
1497 | |
1175 | r = neg ? -r : r; |
1498 | r = neg ? -r : r; |
1176 | #endif |
1499 | #endif |
1177 | |
1500 | |
1178 | return r; |
1501 | return r; |
1179 | } |
1502 | } |
1180 | |
1503 | |
1181 | /* convert a double to ieee double/binary64 */ |
1504 | /* convert a double to ieee double/binary64 */ |
1182 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1505 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1183 | ecb_function_ uint64_t |
1506 | ecb_function_ ecb_const uint64_t |
1184 | ecb_double_to_binary64 (double x) |
1507 | ecb_double_to_binary64 (double x) |
1185 | { |
1508 | { |
1186 | uint64_t r; |
1509 | uint64_t r; |
1187 | |
1510 | |
1188 | #if ECB_STDFP |
1511 | #if ECB_STDFP |
… | |
… | |
1217 | |
1540 | |
1218 | return r; |
1541 | return r; |
1219 | } |
1542 | } |
1220 | |
1543 | |
1221 | /* converts an ieee double/binary64 to a double */ |
1544 | /* converts an ieee double/binary64 to a double */ |
1222 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1545 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1223 | ecb_function_ double |
1546 | ecb_function_ ecb_const double |
1224 | ecb_binary64_to_double (uint64_t x) |
1547 | ecb_binary64_to_double (uint64_t x) |
1225 | { |
1548 | { |
1226 | double r; |
1549 | double r; |
1227 | |
1550 | |
1228 | #if ECB_STDFP |
1551 | #if ECB_STDFP |
… | |
… | |
1246 | #endif |
1569 | #endif |
1247 | |
1570 | |
1248 | return r; |
1571 | return r; |
1249 | } |
1572 | } |
1250 | |
1573 | |
|
|
1574 | /* convert a float to ieee half/binary16 */ |
|
|
1575 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1576 | ecb_function_ ecb_const uint16_t |
|
|
1577 | ecb_float_to_binary16 (float x) |
|
|
1578 | { |
|
|
1579 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | /* convert an ieee half/binary16 to float */ |
|
|
1583 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1584 | ecb_function_ ecb_const float |
|
|
1585 | ecb_binary16_to_float (uint16_t x) |
|
|
1586 | { |
|
|
1587 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1588 | } |
|
|
1589 | |
1251 | #endif |
1590 | #endif |
1252 | |
1591 | |
1253 | #endif |
1592 | #endif |
1254 | |
1593 | |
1255 | /* ECB.H END */ |
1594 | /* ECB.H END */ |
1256 | |
1595 | |
1257 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1596 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1258 | /* if your architecture doesn't need memory fences, e.g. because it is |
1597 | /* if your architecture doesn't need memory fences, e.g. because it is |
1259 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1598 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1260 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1599 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
1261 | * libev, in which cases the memory fences become nops. |
1600 | * libev, in which cases the memory fences become nops. |
1262 | * alternatively, you can remove this #error and link against libpthread, |
1601 | * alternatively, you can remove this #error and link against libpthread, |
1263 | * which will then provide the memory fences. |
1602 | * which will then provide the memory fences. |
1264 | */ |
1603 | */ |
1265 | # error "memory fences not defined for your architecture, please report" |
1604 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1269 | # define ECB_MEMORY_FENCE do { } while (0) |
1608 | # define ECB_MEMORY_FENCE do { } while (0) |
1270 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1609 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1271 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1610 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1272 | #endif |
1611 | #endif |
1273 | |
1612 | |
1274 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1275 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1276 | #define noinline ecb_noinline |
|
|
1277 | |
|
|
1278 | #define inline_size ecb_inline |
1613 | #define inline_size ecb_inline |
1279 | |
1614 | |
1280 | #if EV_FEATURE_CODE |
1615 | #if EV_FEATURE_CODE |
1281 | # define inline_speed ecb_inline |
1616 | # define inline_speed ecb_inline |
1282 | #else |
1617 | #else |
1283 | # define inline_speed static noinline |
1618 | # define inline_speed ecb_noinline static |
1284 | #endif |
1619 | #endif |
|
|
1620 | |
|
|
1621 | /*****************************************************************************/ |
|
|
1622 | /* raw syscall wrappers */ |
|
|
1623 | |
|
|
1624 | #if EV_NEED_SYSCALL |
|
|
1625 | |
|
|
1626 | #include <sys/syscall.h> |
|
|
1627 | |
|
|
1628 | /* |
|
|
1629 | * define some syscall wrappers for common architectures |
|
|
1630 | * this is mostly for nice looks during debugging, not performance. |
|
|
1631 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1632 | * enough for linux aio. |
|
|
1633 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1634 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1635 | */ |
|
|
1636 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1637 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1638 | |
|
|
1639 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1640 | ({ \ |
|
|
1641 | long res; \ |
|
|
1642 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1643 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1644 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1645 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1646 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1647 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1648 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1649 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1650 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1651 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1652 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1653 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1654 | __asm__ __volatile__ ( \ |
|
|
1655 | "syscall\n\t" \ |
|
|
1656 | : "=a" (res) \ |
|
|
1657 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1658 | : "cc", "r11", "cx", "memory"); \ |
|
|
1659 | errno = -res; \ |
|
|
1660 | res; \ |
|
|
1661 | }) |
|
|
1662 | |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | #ifdef ev_syscall |
|
|
1666 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1667 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1668 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1669 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1670 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1671 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1672 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1673 | #else |
|
|
1674 | #define ev_syscall0(nr) syscall (nr) |
|
|
1675 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1676 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1677 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1678 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1679 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1680 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1681 | #endif |
|
|
1682 | |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | /*****************************************************************************/ |
1285 | |
1686 | |
1286 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1687 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1287 | |
1688 | |
1288 | #if EV_MINPRI == EV_MAXPRI |
1689 | #if EV_MINPRI == EV_MAXPRI |
1289 | # define ABSPRI(w) (((W)w), 0) |
1690 | # define ABSPRI(w) (((W)w), 0) |
1290 | #else |
1691 | #else |
1291 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1692 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1292 | #endif |
1693 | #endif |
1293 | |
1694 | |
1294 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1695 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1295 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1296 | |
1696 | |
1297 | typedef ev_watcher *W; |
1697 | typedef ev_watcher *W; |
1298 | typedef ev_watcher_list *WL; |
1698 | typedef ev_watcher_list *WL; |
1299 | typedef ev_watcher_time *WT; |
1699 | typedef ev_watcher_time *WT; |
1300 | |
1700 | |
… | |
… | |
1325 | # include "ev_win32.c" |
1725 | # include "ev_win32.c" |
1326 | #endif |
1726 | #endif |
1327 | |
1727 | |
1328 | /*****************************************************************************/ |
1728 | /*****************************************************************************/ |
1329 | |
1729 | |
|
|
1730 | #if EV_USE_LINUXAIO |
|
|
1731 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1732 | #endif |
|
|
1733 | |
1330 | /* define a suitable floor function (only used by periodics atm) */ |
1734 | /* define a suitable floor function (only used by periodics atm) */ |
1331 | |
1735 | |
1332 | #if EV_USE_FLOOR |
1736 | #if EV_USE_FLOOR |
1333 | # include <math.h> |
1737 | # include <math.h> |
1334 | # define ev_floor(v) floor (v) |
1738 | # define ev_floor(v) floor (v) |
1335 | #else |
1739 | #else |
1336 | |
1740 | |
1337 | #include <float.h> |
1741 | #include <float.h> |
1338 | |
1742 | |
1339 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1743 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1744 | ecb_noinline |
1340 | static ev_tstamp noinline |
1745 | static ev_tstamp |
1341 | ev_floor (ev_tstamp v) |
1746 | ev_floor (ev_tstamp v) |
1342 | { |
1747 | { |
1343 | /* the choice of shift factor is not terribly important */ |
1748 | /* the choice of shift factor is not terribly important */ |
1344 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1749 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1345 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1750 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1346 | #else |
1751 | #else |
1347 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1752 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1348 | #endif |
1753 | #endif |
1349 | |
1754 | |
|
|
1755 | /* special treatment for negative arguments */ |
|
|
1756 | if (ecb_expect_false (v < 0.)) |
|
|
1757 | { |
|
|
1758 | ev_tstamp f = -ev_floor (-v); |
|
|
1759 | |
|
|
1760 | return f - (f == v ? 0 : 1); |
|
|
1761 | } |
|
|
1762 | |
1350 | /* argument too large for an unsigned long? */ |
1763 | /* argument too large for an unsigned long? then reduce it */ |
1351 | if (expect_false (v >= shift)) |
1764 | if (ecb_expect_false (v >= shift)) |
1352 | { |
1765 | { |
1353 | ev_tstamp f; |
1766 | ev_tstamp f; |
1354 | |
1767 | |
1355 | if (v == v - 1.) |
1768 | if (v == v - 1.) |
1356 | return v; /* very large number */ |
1769 | return v; /* very large numbers are assumed to be integer */ |
1357 | |
1770 | |
1358 | f = shift * ev_floor (v * (1. / shift)); |
1771 | f = shift * ev_floor (v * (1. / shift)); |
1359 | return f + ev_floor (v - f); |
1772 | return f + ev_floor (v - f); |
1360 | } |
1773 | } |
1361 | |
1774 | |
1362 | /* special treatment for negative args? */ |
|
|
1363 | if (expect_false (v < 0.)) |
|
|
1364 | { |
|
|
1365 | ev_tstamp f = -ev_floor (-v); |
|
|
1366 | |
|
|
1367 | return f - (f == v ? 0 : 1); |
|
|
1368 | } |
|
|
1369 | |
|
|
1370 | /* fits into an unsigned long */ |
1775 | /* fits into an unsigned long */ |
1371 | return (unsigned long)v; |
1776 | return (unsigned long)v; |
1372 | } |
1777 | } |
1373 | |
1778 | |
1374 | #endif |
1779 | #endif |
… | |
… | |
1377 | |
1782 | |
1378 | #ifdef __linux |
1783 | #ifdef __linux |
1379 | # include <sys/utsname.h> |
1784 | # include <sys/utsname.h> |
1380 | #endif |
1785 | #endif |
1381 | |
1786 | |
1382 | static unsigned int noinline ecb_cold |
1787 | ecb_noinline ecb_cold |
|
|
1788 | static unsigned int |
1383 | ev_linux_version (void) |
1789 | ev_linux_version (void) |
1384 | { |
1790 | { |
1385 | #ifdef __linux |
1791 | #ifdef __linux |
1386 | unsigned int v = 0; |
1792 | unsigned int v = 0; |
1387 | struct utsname buf; |
1793 | struct utsname buf; |
… | |
… | |
1416 | } |
1822 | } |
1417 | |
1823 | |
1418 | /*****************************************************************************/ |
1824 | /*****************************************************************************/ |
1419 | |
1825 | |
1420 | #if EV_AVOID_STDIO |
1826 | #if EV_AVOID_STDIO |
1421 | static void noinline ecb_cold |
1827 | ecb_noinline ecb_cold |
|
|
1828 | static void |
1422 | ev_printerr (const char *msg) |
1829 | ev_printerr (const char *msg) |
1423 | { |
1830 | { |
1424 | write (STDERR_FILENO, msg, strlen (msg)); |
1831 | write (STDERR_FILENO, msg, strlen (msg)); |
1425 | } |
1832 | } |
1426 | #endif |
1833 | #endif |
1427 | |
1834 | |
1428 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1835 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1429 | |
1836 | |
1430 | void ecb_cold |
1837 | ecb_cold |
|
|
1838 | void |
1431 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1839 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1432 | { |
1840 | { |
1433 | syserr_cb = cb; |
1841 | syserr_cb = cb; |
1434 | } |
1842 | } |
1435 | |
1843 | |
1436 | static void noinline ecb_cold |
1844 | ecb_noinline ecb_cold |
|
|
1845 | static void |
1437 | ev_syserr (const char *msg) |
1846 | ev_syserr (const char *msg) |
1438 | { |
1847 | { |
1439 | if (!msg) |
1848 | if (!msg) |
1440 | msg = "(libev) system error"; |
1849 | msg = "(libev) system error"; |
1441 | |
1850 | |
… | |
… | |
1454 | abort (); |
1863 | abort (); |
1455 | } |
1864 | } |
1456 | } |
1865 | } |
1457 | |
1866 | |
1458 | static void * |
1867 | static void * |
1459 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1868 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1460 | { |
1869 | { |
1461 | /* some systems, notably openbsd and darwin, fail to properly |
1870 | /* some systems, notably openbsd and darwin, fail to properly |
1462 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1871 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1463 | * the single unix specification, so work around them here. |
1872 | * the single unix specification, so work around them here. |
1464 | * recently, also (at least) fedora and debian started breaking it, |
1873 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1470 | |
1879 | |
1471 | free (ptr); |
1880 | free (ptr); |
1472 | return 0; |
1881 | return 0; |
1473 | } |
1882 | } |
1474 | |
1883 | |
1475 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1884 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1476 | |
1885 | |
1477 | void ecb_cold |
1886 | ecb_cold |
|
|
1887 | void |
1478 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1888 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1479 | { |
1889 | { |
1480 | alloc = cb; |
1890 | alloc = cb; |
1481 | } |
1891 | } |
1482 | |
1892 | |
1483 | inline_speed void * |
1893 | inline_speed void * |
… | |
… | |
1510 | typedef struct |
1920 | typedef struct |
1511 | { |
1921 | { |
1512 | WL head; |
1922 | WL head; |
1513 | unsigned char events; /* the events watched for */ |
1923 | unsigned char events; /* the events watched for */ |
1514 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1924 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1515 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1925 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1516 | unsigned char unused; |
1926 | unsigned char eflags; /* flags field for use by backends */ |
1517 | #if EV_USE_EPOLL |
1927 | #if EV_USE_EPOLL |
1518 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1928 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1519 | #endif |
1929 | #endif |
1520 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1930 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1521 | SOCKET handle; |
1931 | SOCKET handle; |
… | |
… | |
1575 | static struct ev_loop default_loop_struct; |
1985 | static struct ev_loop default_loop_struct; |
1576 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1986 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1577 | |
1987 | |
1578 | #else |
1988 | #else |
1579 | |
1989 | |
1580 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
1990 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1581 | #define VAR(name,decl) static decl; |
1991 | #define VAR(name,decl) static decl; |
1582 | #include "ev_vars.h" |
1992 | #include "ev_vars.h" |
1583 | #undef VAR |
1993 | #undef VAR |
1584 | |
1994 | |
1585 | static int ev_default_loop_ptr; |
1995 | static int ev_default_loop_ptr; |
1586 | |
1996 | |
1587 | #endif |
1997 | #endif |
1588 | |
1998 | |
1589 | #if EV_FEATURE_API |
1999 | #if EV_FEATURE_API |
1590 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2000 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1591 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2001 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1592 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2002 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1593 | #else |
2003 | #else |
1594 | # define EV_RELEASE_CB (void)0 |
2004 | # define EV_RELEASE_CB (void)0 |
1595 | # define EV_ACQUIRE_CB (void)0 |
2005 | # define EV_ACQUIRE_CB (void)0 |
1596 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2006 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1600 | |
2010 | |
1601 | /*****************************************************************************/ |
2011 | /*****************************************************************************/ |
1602 | |
2012 | |
1603 | #ifndef EV_HAVE_EV_TIME |
2013 | #ifndef EV_HAVE_EV_TIME |
1604 | ev_tstamp |
2014 | ev_tstamp |
1605 | ev_time (void) EV_THROW |
2015 | ev_time (void) EV_NOEXCEPT |
1606 | { |
2016 | { |
1607 | #if EV_USE_REALTIME |
2017 | #if EV_USE_REALTIME |
1608 | if (expect_true (have_realtime)) |
2018 | if (ecb_expect_true (have_realtime)) |
1609 | { |
2019 | { |
1610 | struct timespec ts; |
2020 | struct timespec ts; |
1611 | clock_gettime (CLOCK_REALTIME, &ts); |
2021 | clock_gettime (CLOCK_REALTIME, &ts); |
1612 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2022 | return EV_TS_GET (ts); |
1613 | } |
2023 | } |
1614 | #endif |
2024 | #endif |
1615 | |
2025 | |
|
|
2026 | { |
1616 | struct timeval tv; |
2027 | struct timeval tv; |
1617 | gettimeofday (&tv, 0); |
2028 | gettimeofday (&tv, 0); |
1618 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2029 | return EV_TV_GET (tv); |
|
|
2030 | } |
1619 | } |
2031 | } |
1620 | #endif |
2032 | #endif |
1621 | |
2033 | |
1622 | inline_size ev_tstamp |
2034 | inline_size ev_tstamp |
1623 | get_clock (void) |
2035 | get_clock (void) |
1624 | { |
2036 | { |
1625 | #if EV_USE_MONOTONIC |
2037 | #if EV_USE_MONOTONIC |
1626 | if (expect_true (have_monotonic)) |
2038 | if (ecb_expect_true (have_monotonic)) |
1627 | { |
2039 | { |
1628 | struct timespec ts; |
2040 | struct timespec ts; |
1629 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2041 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1630 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2042 | return EV_TS_GET (ts); |
1631 | } |
2043 | } |
1632 | #endif |
2044 | #endif |
1633 | |
2045 | |
1634 | return ev_time (); |
2046 | return ev_time (); |
1635 | } |
2047 | } |
1636 | |
2048 | |
1637 | #if EV_MULTIPLICITY |
2049 | #if EV_MULTIPLICITY |
1638 | ev_tstamp |
2050 | ev_tstamp |
1639 | ev_now (EV_P) EV_THROW |
2051 | ev_now (EV_P) EV_NOEXCEPT |
1640 | { |
2052 | { |
1641 | return ev_rt_now; |
2053 | return ev_rt_now; |
1642 | } |
2054 | } |
1643 | #endif |
2055 | #endif |
1644 | |
2056 | |
1645 | void |
2057 | void |
1646 | ev_sleep (ev_tstamp delay) EV_THROW |
2058 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1647 | { |
2059 | { |
1648 | if (delay > 0.) |
2060 | if (delay > EV_TS_CONST (0.)) |
1649 | { |
2061 | { |
1650 | #if EV_USE_NANOSLEEP |
2062 | #if EV_USE_NANOSLEEP |
1651 | struct timespec ts; |
2063 | struct timespec ts; |
1652 | |
2064 | |
1653 | EV_TS_SET (ts, delay); |
2065 | EV_TS_SET (ts, delay); |
1654 | nanosleep (&ts, 0); |
2066 | nanosleep (&ts, 0); |
1655 | #elif defined _WIN32 |
2067 | #elif defined _WIN32 |
|
|
2068 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2069 | /* compared to select (µs) or nanosleep (ns) */ |
1656 | Sleep ((unsigned long)(delay * 1e3)); |
2070 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1657 | #else |
2071 | #else |
1658 | struct timeval tv; |
2072 | struct timeval tv; |
1659 | |
2073 | |
1660 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2074 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1661 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2075 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1691 | } |
2105 | } |
1692 | |
2106 | |
1693 | return ncur; |
2107 | return ncur; |
1694 | } |
2108 | } |
1695 | |
2109 | |
1696 | static void * noinline ecb_cold |
2110 | ecb_noinline ecb_cold |
|
|
2111 | static void * |
1697 | array_realloc (int elem, void *base, int *cur, int cnt) |
2112 | array_realloc (int elem, void *base, int *cur, int cnt) |
1698 | { |
2113 | { |
1699 | *cur = array_nextsize (elem, *cur, cnt); |
2114 | *cur = array_nextsize (elem, *cur, cnt); |
1700 | return ev_realloc (base, elem * *cur); |
2115 | return ev_realloc (base, elem * *cur); |
1701 | } |
2116 | } |
1702 | |
2117 | |
|
|
2118 | #define array_needsize_noinit(base,offset,count) |
|
|
2119 | |
1703 | #define array_init_zero(base,count) \ |
2120 | #define array_needsize_zerofill(base,offset,count) \ |
1704 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2121 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1705 | |
2122 | |
1706 | #define array_needsize(type,base,cur,cnt,init) \ |
2123 | #define array_needsize(type,base,cur,cnt,init) \ |
1707 | if (expect_false ((cnt) > (cur))) \ |
2124 | if (ecb_expect_false ((cnt) > (cur))) \ |
1708 | { \ |
2125 | { \ |
1709 | int ecb_unused ocur_ = (cur); \ |
2126 | ecb_unused int ocur_ = (cur); \ |
1710 | (base) = (type *)array_realloc \ |
2127 | (base) = (type *)array_realloc \ |
1711 | (sizeof (type), (base), &(cur), (cnt)); \ |
2128 | (sizeof (type), (base), &(cur), (cnt)); \ |
1712 | init ((base) + (ocur_), (cur) - ocur_); \ |
2129 | init ((base), ocur_, ((cur) - ocur_)); \ |
1713 | } |
2130 | } |
1714 | |
2131 | |
1715 | #if 0 |
2132 | #if 0 |
1716 | #define array_slim(type,stem) \ |
2133 | #define array_slim(type,stem) \ |
1717 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2134 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1726 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2143 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1727 | |
2144 | |
1728 | /*****************************************************************************/ |
2145 | /*****************************************************************************/ |
1729 | |
2146 | |
1730 | /* dummy callback for pending events */ |
2147 | /* dummy callback for pending events */ |
1731 | static void noinline |
2148 | ecb_noinline |
|
|
2149 | static void |
1732 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2150 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1733 | { |
2151 | { |
1734 | } |
2152 | } |
1735 | |
2153 | |
1736 | void noinline |
2154 | ecb_noinline |
|
|
2155 | void |
1737 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2156 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1738 | { |
2157 | { |
1739 | W w_ = (W)w; |
2158 | W w_ = (W)w; |
1740 | int pri = ABSPRI (w_); |
2159 | int pri = ABSPRI (w_); |
1741 | |
2160 | |
1742 | if (expect_false (w_->pending)) |
2161 | if (ecb_expect_false (w_->pending)) |
1743 | pendings [pri][w_->pending - 1].events |= revents; |
2162 | pendings [pri][w_->pending - 1].events |= revents; |
1744 | else |
2163 | else |
1745 | { |
2164 | { |
1746 | w_->pending = ++pendingcnt [pri]; |
2165 | w_->pending = ++pendingcnt [pri]; |
1747 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2166 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1748 | pendings [pri][w_->pending - 1].w = w_; |
2167 | pendings [pri][w_->pending - 1].w = w_; |
1749 | pendings [pri][w_->pending - 1].events = revents; |
2168 | pendings [pri][w_->pending - 1].events = revents; |
1750 | } |
2169 | } |
1751 | |
2170 | |
1752 | pendingpri = NUMPRI - 1; |
2171 | pendingpri = NUMPRI - 1; |
1753 | } |
2172 | } |
1754 | |
2173 | |
1755 | inline_speed void |
2174 | inline_speed void |
1756 | feed_reverse (EV_P_ W w) |
2175 | feed_reverse (EV_P_ W w) |
1757 | { |
2176 | { |
1758 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2177 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1759 | rfeeds [rfeedcnt++] = w; |
2178 | rfeeds [rfeedcnt++] = w; |
1760 | } |
2179 | } |
1761 | |
2180 | |
1762 | inline_size void |
2181 | inline_size void |
1763 | feed_reverse_done (EV_P_ int revents) |
2182 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1798 | inline_speed void |
2217 | inline_speed void |
1799 | fd_event (EV_P_ int fd, int revents) |
2218 | fd_event (EV_P_ int fd, int revents) |
1800 | { |
2219 | { |
1801 | ANFD *anfd = anfds + fd; |
2220 | ANFD *anfd = anfds + fd; |
1802 | |
2221 | |
1803 | if (expect_true (!anfd->reify)) |
2222 | if (ecb_expect_true (!anfd->reify)) |
1804 | fd_event_nocheck (EV_A_ fd, revents); |
2223 | fd_event_nocheck (EV_A_ fd, revents); |
1805 | } |
2224 | } |
1806 | |
2225 | |
1807 | void |
2226 | void |
1808 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2227 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1809 | { |
2228 | { |
1810 | if (fd >= 0 && fd < anfdmax) |
2229 | if (fd >= 0 && fd < anfdmax) |
1811 | fd_event_nocheck (EV_A_ fd, revents); |
2230 | fd_event_nocheck (EV_A_ fd, revents); |
1812 | } |
2231 | } |
1813 | |
2232 | |
… | |
… | |
1850 | ev_io *w; |
2269 | ev_io *w; |
1851 | |
2270 | |
1852 | unsigned char o_events = anfd->events; |
2271 | unsigned char o_events = anfd->events; |
1853 | unsigned char o_reify = anfd->reify; |
2272 | unsigned char o_reify = anfd->reify; |
1854 | |
2273 | |
1855 | anfd->reify = 0; |
2274 | anfd->reify = 0; |
1856 | |
2275 | |
1857 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2276 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1858 | { |
2277 | { |
1859 | anfd->events = 0; |
2278 | anfd->events = 0; |
1860 | |
2279 | |
1861 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2280 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1862 | anfd->events |= (unsigned char)w->events; |
2281 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1871 | |
2290 | |
1872 | fdchangecnt = 0; |
2291 | fdchangecnt = 0; |
1873 | } |
2292 | } |
1874 | |
2293 | |
1875 | /* something about the given fd changed */ |
2294 | /* something about the given fd changed */ |
1876 | inline_size void |
2295 | inline_size |
|
|
2296 | void |
1877 | fd_change (EV_P_ int fd, int flags) |
2297 | fd_change (EV_P_ int fd, int flags) |
1878 | { |
2298 | { |
1879 | unsigned char reify = anfds [fd].reify; |
2299 | unsigned char reify = anfds [fd].reify; |
1880 | anfds [fd].reify |= flags; |
2300 | anfds [fd].reify |= flags; |
1881 | |
2301 | |
1882 | if (expect_true (!reify)) |
2302 | if (ecb_expect_true (!reify)) |
1883 | { |
2303 | { |
1884 | ++fdchangecnt; |
2304 | ++fdchangecnt; |
1885 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2305 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1886 | fdchanges [fdchangecnt - 1] = fd; |
2306 | fdchanges [fdchangecnt - 1] = fd; |
1887 | } |
2307 | } |
1888 | } |
2308 | } |
1889 | |
2309 | |
1890 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2310 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1891 | inline_speed void ecb_cold |
2311 | inline_speed ecb_cold void |
1892 | fd_kill (EV_P_ int fd) |
2312 | fd_kill (EV_P_ int fd) |
1893 | { |
2313 | { |
1894 | ev_io *w; |
2314 | ev_io *w; |
1895 | |
2315 | |
1896 | while ((w = (ev_io *)anfds [fd].head)) |
2316 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1899 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2319 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1900 | } |
2320 | } |
1901 | } |
2321 | } |
1902 | |
2322 | |
1903 | /* check whether the given fd is actually valid, for error recovery */ |
2323 | /* check whether the given fd is actually valid, for error recovery */ |
1904 | inline_size int ecb_cold |
2324 | inline_size ecb_cold int |
1905 | fd_valid (int fd) |
2325 | fd_valid (int fd) |
1906 | { |
2326 | { |
1907 | #ifdef _WIN32 |
2327 | #ifdef _WIN32 |
1908 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2328 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1909 | #else |
2329 | #else |
1910 | return fcntl (fd, F_GETFD) != -1; |
2330 | return fcntl (fd, F_GETFD) != -1; |
1911 | #endif |
2331 | #endif |
1912 | } |
2332 | } |
1913 | |
2333 | |
1914 | /* called on EBADF to verify fds */ |
2334 | /* called on EBADF to verify fds */ |
1915 | static void noinline ecb_cold |
2335 | ecb_noinline ecb_cold |
|
|
2336 | static void |
1916 | fd_ebadf (EV_P) |
2337 | fd_ebadf (EV_P) |
1917 | { |
2338 | { |
1918 | int fd; |
2339 | int fd; |
1919 | |
2340 | |
1920 | for (fd = 0; fd < anfdmax; ++fd) |
2341 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1922 | if (!fd_valid (fd) && errno == EBADF) |
2343 | if (!fd_valid (fd) && errno == EBADF) |
1923 | fd_kill (EV_A_ fd); |
2344 | fd_kill (EV_A_ fd); |
1924 | } |
2345 | } |
1925 | |
2346 | |
1926 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2347 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1927 | static void noinline ecb_cold |
2348 | ecb_noinline ecb_cold |
|
|
2349 | static void |
1928 | fd_enomem (EV_P) |
2350 | fd_enomem (EV_P) |
1929 | { |
2351 | { |
1930 | int fd; |
2352 | int fd; |
1931 | |
2353 | |
1932 | for (fd = anfdmax; fd--; ) |
2354 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1936 | break; |
2358 | break; |
1937 | } |
2359 | } |
1938 | } |
2360 | } |
1939 | |
2361 | |
1940 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2362 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1941 | static void noinline |
2363 | ecb_noinline |
|
|
2364 | static void |
1942 | fd_rearm_all (EV_P) |
2365 | fd_rearm_all (EV_P) |
1943 | { |
2366 | { |
1944 | int fd; |
2367 | int fd; |
1945 | |
2368 | |
1946 | for (fd = 0; fd < anfdmax; ++fd) |
2369 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1999 | ev_tstamp minat; |
2422 | ev_tstamp minat; |
2000 | ANHE *minpos; |
2423 | ANHE *minpos; |
2001 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2424 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2002 | |
2425 | |
2003 | /* find minimum child */ |
2426 | /* find minimum child */ |
2004 | if (expect_true (pos + DHEAP - 1 < E)) |
2427 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2005 | { |
2428 | { |
2006 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2429 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2007 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2430 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2008 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2431 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2009 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2432 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2010 | } |
2433 | } |
2011 | else if (pos < E) |
2434 | else if (pos < E) |
2012 | { |
2435 | { |
2013 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2436 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2014 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2437 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2015 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2438 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2016 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2439 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2017 | } |
2440 | } |
2018 | else |
2441 | else |
2019 | break; |
2442 | break; |
2020 | |
2443 | |
2021 | if (ANHE_at (he) <= minat) |
2444 | if (ANHE_at (he) <= minat) |
… | |
… | |
2029 | |
2452 | |
2030 | heap [k] = he; |
2453 | heap [k] = he; |
2031 | ev_active (ANHE_w (he)) = k; |
2454 | ev_active (ANHE_w (he)) = k; |
2032 | } |
2455 | } |
2033 | |
2456 | |
2034 | #else /* 4HEAP */ |
2457 | #else /* not 4HEAP */ |
2035 | |
2458 | |
2036 | #define HEAP0 1 |
2459 | #define HEAP0 1 |
2037 | #define HPARENT(k) ((k) >> 1) |
2460 | #define HPARENT(k) ((k) >> 1) |
2038 | #define UPHEAP_DONE(p,k) (!(p)) |
2461 | #define UPHEAP_DONE(p,k) (!(p)) |
2039 | |
2462 | |
… | |
… | |
2127 | |
2550 | |
2128 | /*****************************************************************************/ |
2551 | /*****************************************************************************/ |
2129 | |
2552 | |
2130 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2131 | |
2554 | |
2132 | static void noinline ecb_cold |
2555 | ecb_noinline ecb_cold |
|
|
2556 | static void |
2133 | evpipe_init (EV_P) |
2557 | evpipe_init (EV_P) |
2134 | { |
2558 | { |
2135 | if (!ev_is_active (&pipe_w)) |
2559 | if (!ev_is_active (&pipe_w)) |
2136 | { |
2560 | { |
2137 | int fds [2]; |
2561 | int fds [2]; |
… | |
… | |
2177 | inline_speed void |
2601 | inline_speed void |
2178 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2602 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2179 | { |
2603 | { |
2180 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2604 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2181 | |
2605 | |
2182 | if (expect_true (*flag)) |
2606 | if (ecb_expect_true (*flag)) |
2183 | return; |
2607 | return; |
2184 | |
2608 | |
2185 | *flag = 1; |
2609 | *flag = 1; |
2186 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2610 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2187 | |
2611 | |
… | |
… | |
2208 | #endif |
2632 | #endif |
2209 | { |
2633 | { |
2210 | #ifdef _WIN32 |
2634 | #ifdef _WIN32 |
2211 | WSABUF buf; |
2635 | WSABUF buf; |
2212 | DWORD sent; |
2636 | DWORD sent; |
2213 | buf.buf = &buf; |
2637 | buf.buf = (char *)&buf; |
2214 | buf.len = 1; |
2638 | buf.len = 1; |
2215 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2639 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2216 | #else |
2640 | #else |
2217 | write (evpipe [1], &(evpipe [1]), 1); |
2641 | write (evpipe [1], &(evpipe [1]), 1); |
2218 | #endif |
2642 | #endif |
… | |
… | |
2264 | sig_pending = 0; |
2688 | sig_pending = 0; |
2265 | |
2689 | |
2266 | ECB_MEMORY_FENCE; |
2690 | ECB_MEMORY_FENCE; |
2267 | |
2691 | |
2268 | for (i = EV_NSIG - 1; i--; ) |
2692 | for (i = EV_NSIG - 1; i--; ) |
2269 | if (expect_false (signals [i].pending)) |
2693 | if (ecb_expect_false (signals [i].pending)) |
2270 | ev_feed_signal_event (EV_A_ i + 1); |
2694 | ev_feed_signal_event (EV_A_ i + 1); |
2271 | } |
2695 | } |
2272 | #endif |
2696 | #endif |
2273 | |
2697 | |
2274 | #if EV_ASYNC_ENABLE |
2698 | #if EV_ASYNC_ENABLE |
… | |
… | |
2290 | } |
2714 | } |
2291 | |
2715 | |
2292 | /*****************************************************************************/ |
2716 | /*****************************************************************************/ |
2293 | |
2717 | |
2294 | void |
2718 | void |
2295 | ev_feed_signal (int signum) EV_THROW |
2719 | ev_feed_signal (int signum) EV_NOEXCEPT |
2296 | { |
2720 | { |
2297 | #if EV_MULTIPLICITY |
2721 | #if EV_MULTIPLICITY |
2298 | EV_P; |
2722 | EV_P; |
2299 | ECB_MEMORY_FENCE_ACQUIRE; |
2723 | ECB_MEMORY_FENCE_ACQUIRE; |
2300 | EV_A = signals [signum - 1].loop; |
2724 | EV_A = signals [signum - 1].loop; |
… | |
… | |
2315 | #endif |
2739 | #endif |
2316 | |
2740 | |
2317 | ev_feed_signal (signum); |
2741 | ev_feed_signal (signum); |
2318 | } |
2742 | } |
2319 | |
2743 | |
2320 | void noinline |
2744 | ecb_noinline |
|
|
2745 | void |
2321 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2746 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2322 | { |
2747 | { |
2323 | WL w; |
2748 | WL w; |
2324 | |
2749 | |
2325 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2750 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2326 | return; |
2751 | return; |
2327 | |
2752 | |
2328 | --signum; |
2753 | --signum; |
2329 | |
2754 | |
2330 | #if EV_MULTIPLICITY |
2755 | #if EV_MULTIPLICITY |
2331 | /* it is permissible to try to feed a signal to the wrong loop */ |
2756 | /* it is permissible to try to feed a signal to the wrong loop */ |
2332 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2757 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2333 | |
2758 | |
2334 | if (expect_false (signals [signum].loop != EV_A)) |
2759 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2335 | return; |
2760 | return; |
2336 | #endif |
2761 | #endif |
2337 | |
2762 | |
2338 | signals [signum].pending = 0; |
2763 | signals [signum].pending = 0; |
2339 | ECB_MEMORY_FENCE_RELEASE; |
2764 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2435 | # include "ev_kqueue.c" |
2860 | # include "ev_kqueue.c" |
2436 | #endif |
2861 | #endif |
2437 | #if EV_USE_EPOLL |
2862 | #if EV_USE_EPOLL |
2438 | # include "ev_epoll.c" |
2863 | # include "ev_epoll.c" |
2439 | #endif |
2864 | #endif |
|
|
2865 | #if EV_USE_LINUXAIO |
|
|
2866 | # include "ev_linuxaio.c" |
|
|
2867 | #endif |
|
|
2868 | #if EV_USE_IOURING |
|
|
2869 | # include "ev_iouring.c" |
|
|
2870 | #endif |
2440 | #if EV_USE_POLL |
2871 | #if EV_USE_POLL |
2441 | # include "ev_poll.c" |
2872 | # include "ev_poll.c" |
2442 | #endif |
2873 | #endif |
2443 | #if EV_USE_SELECT |
2874 | #if EV_USE_SELECT |
2444 | # include "ev_select.c" |
2875 | # include "ev_select.c" |
2445 | #endif |
2876 | #endif |
2446 | |
2877 | |
2447 | int ecb_cold |
2878 | ecb_cold int |
2448 | ev_version_major (void) EV_THROW |
2879 | ev_version_major (void) EV_NOEXCEPT |
2449 | { |
2880 | { |
2450 | return EV_VERSION_MAJOR; |
2881 | return EV_VERSION_MAJOR; |
2451 | } |
2882 | } |
2452 | |
2883 | |
2453 | int ecb_cold |
2884 | ecb_cold int |
2454 | ev_version_minor (void) EV_THROW |
2885 | ev_version_minor (void) EV_NOEXCEPT |
2455 | { |
2886 | { |
2456 | return EV_VERSION_MINOR; |
2887 | return EV_VERSION_MINOR; |
2457 | } |
2888 | } |
2458 | |
2889 | |
2459 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2890 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2460 | int inline_size ecb_cold |
2891 | inline_size ecb_cold int |
2461 | enable_secure (void) |
2892 | enable_secure (void) |
2462 | { |
2893 | { |
2463 | #ifdef _WIN32 |
2894 | #ifdef _WIN32 |
2464 | return 0; |
2895 | return 0; |
2465 | #else |
2896 | #else |
2466 | return getuid () != geteuid () |
2897 | return getuid () != geteuid () |
2467 | || getgid () != getegid (); |
2898 | || getgid () != getegid (); |
2468 | #endif |
2899 | #endif |
2469 | } |
2900 | } |
2470 | |
2901 | |
2471 | unsigned int ecb_cold |
2902 | ecb_cold |
|
|
2903 | unsigned int |
2472 | ev_supported_backends (void) EV_THROW |
2904 | ev_supported_backends (void) EV_NOEXCEPT |
2473 | { |
2905 | { |
2474 | unsigned int flags = 0; |
2906 | unsigned int flags = 0; |
2475 | |
2907 | |
2476 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2908 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2477 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2909 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2478 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2910 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2911 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2912 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
2479 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2913 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2480 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2914 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2481 | |
2915 | |
2482 | return flags; |
2916 | return flags; |
2483 | } |
2917 | } |
2484 | |
2918 | |
2485 | unsigned int ecb_cold |
2919 | ecb_cold |
|
|
2920 | unsigned int |
2486 | ev_recommended_backends (void) EV_THROW |
2921 | ev_recommended_backends (void) EV_NOEXCEPT |
2487 | { |
2922 | { |
2488 | unsigned int flags = ev_supported_backends (); |
2923 | unsigned int flags = ev_supported_backends (); |
2489 | |
2924 | |
2490 | #ifndef __NetBSD__ |
2925 | #ifndef __NetBSD__ |
2491 | /* kqueue is borked on everything but netbsd apparently */ |
2926 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2499 | #endif |
2934 | #endif |
2500 | #ifdef __FreeBSD__ |
2935 | #ifdef __FreeBSD__ |
2501 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2936 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2502 | #endif |
2937 | #endif |
2503 | |
2938 | |
|
|
2939 | /* TODO: linuxaio is very experimental */ |
|
|
2940 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2941 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2942 | #endif |
|
|
2943 | /* TODO: linuxaio is super experimental */ |
|
|
2944 | #if !EV_RECOMMEND_IOURING |
|
|
2945 | flags &= ~EVBACKEND_IOURING; |
|
|
2946 | #endif |
|
|
2947 | |
2504 | return flags; |
2948 | return flags; |
2505 | } |
2949 | } |
2506 | |
2950 | |
2507 | unsigned int ecb_cold |
2951 | ecb_cold |
|
|
2952 | unsigned int |
2508 | ev_embeddable_backends (void) EV_THROW |
2953 | ev_embeddable_backends (void) EV_NOEXCEPT |
2509 | { |
2954 | { |
2510 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2955 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2511 | |
2956 | |
2512 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2957 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2513 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2958 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2514 | flags &= ~EVBACKEND_EPOLL; |
2959 | flags &= ~EVBACKEND_EPOLL; |
2515 | |
2960 | |
|
|
2961 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2962 | |
|
|
2963 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2964 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2965 | * if the kernel ever is fixed, this might change... |
|
|
2966 | */ |
|
|
2967 | |
2516 | return flags; |
2968 | return flags; |
2517 | } |
2969 | } |
2518 | |
2970 | |
2519 | unsigned int |
2971 | unsigned int |
2520 | ev_backend (EV_P) EV_THROW |
2972 | ev_backend (EV_P) EV_NOEXCEPT |
2521 | { |
2973 | { |
2522 | return backend; |
2974 | return backend; |
2523 | } |
2975 | } |
2524 | |
2976 | |
2525 | #if EV_FEATURE_API |
2977 | #if EV_FEATURE_API |
2526 | unsigned int |
2978 | unsigned int |
2527 | ev_iteration (EV_P) EV_THROW |
2979 | ev_iteration (EV_P) EV_NOEXCEPT |
2528 | { |
2980 | { |
2529 | return loop_count; |
2981 | return loop_count; |
2530 | } |
2982 | } |
2531 | |
2983 | |
2532 | unsigned int |
2984 | unsigned int |
2533 | ev_depth (EV_P) EV_THROW |
2985 | ev_depth (EV_P) EV_NOEXCEPT |
2534 | { |
2986 | { |
2535 | return loop_depth; |
2987 | return loop_depth; |
2536 | } |
2988 | } |
2537 | |
2989 | |
2538 | void |
2990 | void |
2539 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2991 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2540 | { |
2992 | { |
2541 | io_blocktime = interval; |
2993 | io_blocktime = interval; |
2542 | } |
2994 | } |
2543 | |
2995 | |
2544 | void |
2996 | void |
2545 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2997 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2546 | { |
2998 | { |
2547 | timeout_blocktime = interval; |
2999 | timeout_blocktime = interval; |
2548 | } |
3000 | } |
2549 | |
3001 | |
2550 | void |
3002 | void |
2551 | ev_set_userdata (EV_P_ void *data) EV_THROW |
3003 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2552 | { |
3004 | { |
2553 | userdata = data; |
3005 | userdata = data; |
2554 | } |
3006 | } |
2555 | |
3007 | |
2556 | void * |
3008 | void * |
2557 | ev_userdata (EV_P) EV_THROW |
3009 | ev_userdata (EV_P) EV_NOEXCEPT |
2558 | { |
3010 | { |
2559 | return userdata; |
3011 | return userdata; |
2560 | } |
3012 | } |
2561 | |
3013 | |
2562 | void |
3014 | void |
2563 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
3015 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2564 | { |
3016 | { |
2565 | invoke_cb = invoke_pending_cb; |
3017 | invoke_cb = invoke_pending_cb; |
2566 | } |
3018 | } |
2567 | |
3019 | |
2568 | void |
3020 | void |
2569 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
3021 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2570 | { |
3022 | { |
2571 | release_cb = release; |
3023 | release_cb = release; |
2572 | acquire_cb = acquire; |
3024 | acquire_cb = acquire; |
2573 | } |
3025 | } |
2574 | #endif |
3026 | #endif |
2575 | |
3027 | |
2576 | /* initialise a loop structure, must be zero-initialised */ |
3028 | /* initialise a loop structure, must be zero-initialised */ |
2577 | static void noinline ecb_cold |
3029 | ecb_noinline ecb_cold |
|
|
3030 | static void |
2578 | loop_init (EV_P_ unsigned int flags) EV_THROW |
3031 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2579 | { |
3032 | { |
2580 | if (!backend) |
3033 | if (!backend) |
2581 | { |
3034 | { |
2582 | origflags = flags; |
3035 | origflags = flags; |
2583 | |
3036 | |
… | |
… | |
2641 | |
3094 | |
2642 | if (!(flags & EVBACKEND_MASK)) |
3095 | if (!(flags & EVBACKEND_MASK)) |
2643 | flags |= ev_recommended_backends (); |
3096 | flags |= ev_recommended_backends (); |
2644 | |
3097 | |
2645 | #if EV_USE_IOCP |
3098 | #if EV_USE_IOCP |
2646 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3099 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2647 | #endif |
3100 | #endif |
2648 | #if EV_USE_PORT |
3101 | #if EV_USE_PORT |
2649 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3102 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2650 | #endif |
3103 | #endif |
2651 | #if EV_USE_KQUEUE |
3104 | #if EV_USE_KQUEUE |
2652 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3105 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3106 | #endif |
|
|
3107 | #if EV_USE_IOURING |
|
|
3108 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3109 | #endif |
|
|
3110 | #if EV_USE_LINUXAIO |
|
|
3111 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2653 | #endif |
3112 | #endif |
2654 | #if EV_USE_EPOLL |
3113 | #if EV_USE_EPOLL |
2655 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3114 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2656 | #endif |
3115 | #endif |
2657 | #if EV_USE_POLL |
3116 | #if EV_USE_POLL |
2658 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3117 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2659 | #endif |
3118 | #endif |
2660 | #if EV_USE_SELECT |
3119 | #if EV_USE_SELECT |
2661 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3120 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2662 | #endif |
3121 | #endif |
2663 | |
3122 | |
2664 | ev_prepare_init (&pending_w, pendingcb); |
3123 | ev_prepare_init (&pending_w, pendingcb); |
2665 | |
3124 | |
2666 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3125 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2669 | #endif |
3128 | #endif |
2670 | } |
3129 | } |
2671 | } |
3130 | } |
2672 | |
3131 | |
2673 | /* free up a loop structure */ |
3132 | /* free up a loop structure */ |
2674 | void ecb_cold |
3133 | ecb_cold |
|
|
3134 | void |
2675 | ev_loop_destroy (EV_P) |
3135 | ev_loop_destroy (EV_P) |
2676 | { |
3136 | { |
2677 | int i; |
3137 | int i; |
2678 | |
3138 | |
2679 | #if EV_MULTIPLICITY |
3139 | #if EV_MULTIPLICITY |
… | |
… | |
2682 | return; |
3142 | return; |
2683 | #endif |
3143 | #endif |
2684 | |
3144 | |
2685 | #if EV_CLEANUP_ENABLE |
3145 | #if EV_CLEANUP_ENABLE |
2686 | /* queue cleanup watchers (and execute them) */ |
3146 | /* queue cleanup watchers (and execute them) */ |
2687 | if (expect_false (cleanupcnt)) |
3147 | if (ecb_expect_false (cleanupcnt)) |
2688 | { |
3148 | { |
2689 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3149 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2690 | EV_INVOKE_PENDING; |
3150 | EV_INVOKE_PENDING; |
2691 | } |
3151 | } |
2692 | #endif |
3152 | #endif |
… | |
… | |
2720 | |
3180 | |
2721 | if (backend_fd >= 0) |
3181 | if (backend_fd >= 0) |
2722 | close (backend_fd); |
3182 | close (backend_fd); |
2723 | |
3183 | |
2724 | #if EV_USE_IOCP |
3184 | #if EV_USE_IOCP |
2725 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3185 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2726 | #endif |
3186 | #endif |
2727 | #if EV_USE_PORT |
3187 | #if EV_USE_PORT |
2728 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3188 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2729 | #endif |
3189 | #endif |
2730 | #if EV_USE_KQUEUE |
3190 | #if EV_USE_KQUEUE |
2731 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3191 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3192 | #endif |
|
|
3193 | #if EV_USE_IOURING |
|
|
3194 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3195 | #endif |
|
|
3196 | #if EV_USE_LINUXAIO |
|
|
3197 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2732 | #endif |
3198 | #endif |
2733 | #if EV_USE_EPOLL |
3199 | #if EV_USE_EPOLL |
2734 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3200 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2735 | #endif |
3201 | #endif |
2736 | #if EV_USE_POLL |
3202 | #if EV_USE_POLL |
2737 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3203 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2738 | #endif |
3204 | #endif |
2739 | #if EV_USE_SELECT |
3205 | #if EV_USE_SELECT |
2740 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3206 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2741 | #endif |
3207 | #endif |
2742 | |
3208 | |
2743 | for (i = NUMPRI; i--; ) |
3209 | for (i = NUMPRI; i--; ) |
2744 | { |
3210 | { |
2745 | array_free (pending, [i]); |
3211 | array_free (pending, [i]); |
… | |
… | |
2787 | |
3253 | |
2788 | inline_size void |
3254 | inline_size void |
2789 | loop_fork (EV_P) |
3255 | loop_fork (EV_P) |
2790 | { |
3256 | { |
2791 | #if EV_USE_PORT |
3257 | #if EV_USE_PORT |
2792 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3258 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2793 | #endif |
3259 | #endif |
2794 | #if EV_USE_KQUEUE |
3260 | #if EV_USE_KQUEUE |
2795 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3261 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3262 | #endif |
|
|
3263 | #if EV_USE_IOURING |
|
|
3264 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3265 | #endif |
|
|
3266 | #if EV_USE_LINUXAIO |
|
|
3267 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2796 | #endif |
3268 | #endif |
2797 | #if EV_USE_EPOLL |
3269 | #if EV_USE_EPOLL |
2798 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3270 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2799 | #endif |
3271 | #endif |
2800 | #if EV_USE_INOTIFY |
3272 | #if EV_USE_INOTIFY |
2801 | infy_fork (EV_A); |
3273 | infy_fork (EV_A); |
2802 | #endif |
3274 | #endif |
2803 | |
3275 | |
2804 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3276 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2805 | if (ev_is_active (&pipe_w)) |
3277 | if (ev_is_active (&pipe_w) && postfork != 2) |
2806 | { |
3278 | { |
2807 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3279 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2808 | |
3280 | |
2809 | ev_ref (EV_A); |
3281 | ev_ref (EV_A); |
2810 | ev_io_stop (EV_A_ &pipe_w); |
3282 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2821 | postfork = 0; |
3293 | postfork = 0; |
2822 | } |
3294 | } |
2823 | |
3295 | |
2824 | #if EV_MULTIPLICITY |
3296 | #if EV_MULTIPLICITY |
2825 | |
3297 | |
|
|
3298 | ecb_cold |
2826 | struct ev_loop * ecb_cold |
3299 | struct ev_loop * |
2827 | ev_loop_new (unsigned int flags) EV_THROW |
3300 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2828 | { |
3301 | { |
2829 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3302 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2830 | |
3303 | |
2831 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3304 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2832 | loop_init (EV_A_ flags); |
3305 | loop_init (EV_A_ flags); |
… | |
… | |
2839 | } |
3312 | } |
2840 | |
3313 | |
2841 | #endif /* multiplicity */ |
3314 | #endif /* multiplicity */ |
2842 | |
3315 | |
2843 | #if EV_VERIFY |
3316 | #if EV_VERIFY |
2844 | static void noinline ecb_cold |
3317 | ecb_noinline ecb_cold |
|
|
3318 | static void |
2845 | verify_watcher (EV_P_ W w) |
3319 | verify_watcher (EV_P_ W w) |
2846 | { |
3320 | { |
2847 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3321 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2848 | |
3322 | |
2849 | if (w->pending) |
3323 | if (w->pending) |
2850 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3324 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2851 | } |
3325 | } |
2852 | |
3326 | |
2853 | static void noinline ecb_cold |
3327 | ecb_noinline ecb_cold |
|
|
3328 | static void |
2854 | verify_heap (EV_P_ ANHE *heap, int N) |
3329 | verify_heap (EV_P_ ANHE *heap, int N) |
2855 | { |
3330 | { |
2856 | int i; |
3331 | int i; |
2857 | |
3332 | |
2858 | for (i = HEAP0; i < N + HEAP0; ++i) |
3333 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2863 | |
3338 | |
2864 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3339 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2865 | } |
3340 | } |
2866 | } |
3341 | } |
2867 | |
3342 | |
2868 | static void noinline ecb_cold |
3343 | ecb_noinline ecb_cold |
|
|
3344 | static void |
2869 | array_verify (EV_P_ W *ws, int cnt) |
3345 | array_verify (EV_P_ W *ws, int cnt) |
2870 | { |
3346 | { |
2871 | while (cnt--) |
3347 | while (cnt--) |
2872 | { |
3348 | { |
2873 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3349 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2876 | } |
3352 | } |
2877 | #endif |
3353 | #endif |
2878 | |
3354 | |
2879 | #if EV_FEATURE_API |
3355 | #if EV_FEATURE_API |
2880 | void ecb_cold |
3356 | void ecb_cold |
2881 | ev_verify (EV_P) EV_THROW |
3357 | ev_verify (EV_P) EV_NOEXCEPT |
2882 | { |
3358 | { |
2883 | #if EV_VERIFY |
3359 | #if EV_VERIFY |
2884 | int i; |
3360 | int i; |
2885 | WL w, w2; |
3361 | WL w, w2; |
2886 | |
3362 | |
… | |
… | |
2962 | #endif |
3438 | #endif |
2963 | } |
3439 | } |
2964 | #endif |
3440 | #endif |
2965 | |
3441 | |
2966 | #if EV_MULTIPLICITY |
3442 | #if EV_MULTIPLICITY |
|
|
3443 | ecb_cold |
2967 | struct ev_loop * ecb_cold |
3444 | struct ev_loop * |
2968 | #else |
3445 | #else |
2969 | int |
3446 | int |
2970 | #endif |
3447 | #endif |
2971 | ev_default_loop (unsigned int flags) EV_THROW |
3448 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2972 | { |
3449 | { |
2973 | if (!ev_default_loop_ptr) |
3450 | if (!ev_default_loop_ptr) |
2974 | { |
3451 | { |
2975 | #if EV_MULTIPLICITY |
3452 | #if EV_MULTIPLICITY |
2976 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3453 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2995 | |
3472 | |
2996 | return ev_default_loop_ptr; |
3473 | return ev_default_loop_ptr; |
2997 | } |
3474 | } |
2998 | |
3475 | |
2999 | void |
3476 | void |
3000 | ev_loop_fork (EV_P) EV_THROW |
3477 | ev_loop_fork (EV_P) EV_NOEXCEPT |
3001 | { |
3478 | { |
3002 | postfork = 1; |
3479 | postfork = 1; |
3003 | } |
3480 | } |
3004 | |
3481 | |
3005 | /*****************************************************************************/ |
3482 | /*****************************************************************************/ |
… | |
… | |
3009 | { |
3486 | { |
3010 | EV_CB_INVOKE ((W)w, revents); |
3487 | EV_CB_INVOKE ((W)w, revents); |
3011 | } |
3488 | } |
3012 | |
3489 | |
3013 | unsigned int |
3490 | unsigned int |
3014 | ev_pending_count (EV_P) EV_THROW |
3491 | ev_pending_count (EV_P) EV_NOEXCEPT |
3015 | { |
3492 | { |
3016 | int pri; |
3493 | int pri; |
3017 | unsigned int count = 0; |
3494 | unsigned int count = 0; |
3018 | |
3495 | |
3019 | for (pri = NUMPRI; pri--; ) |
3496 | for (pri = NUMPRI; pri--; ) |
3020 | count += pendingcnt [pri]; |
3497 | count += pendingcnt [pri]; |
3021 | |
3498 | |
3022 | return count; |
3499 | return count; |
3023 | } |
3500 | } |
3024 | |
3501 | |
3025 | void noinline |
3502 | ecb_noinline |
|
|
3503 | void |
3026 | ev_invoke_pending (EV_P) |
3504 | ev_invoke_pending (EV_P) |
3027 | { |
3505 | { |
3028 | pendingpri = NUMPRI; |
3506 | pendingpri = NUMPRI; |
3029 | |
3507 | |
3030 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3508 | do |
3031 | { |
3509 | { |
3032 | --pendingpri; |
3510 | --pendingpri; |
3033 | |
3511 | |
|
|
3512 | /* pendingpri possibly gets modified in the inner loop */ |
3034 | while (pendingcnt [pendingpri]) |
3513 | while (pendingcnt [pendingpri]) |
3035 | { |
3514 | { |
3036 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3515 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3037 | |
3516 | |
3038 | p->w->pending = 0; |
3517 | p->w->pending = 0; |
3039 | EV_CB_INVOKE (p->w, p->events); |
3518 | EV_CB_INVOKE (p->w, p->events); |
3040 | EV_FREQUENT_CHECK; |
3519 | EV_FREQUENT_CHECK; |
3041 | } |
3520 | } |
3042 | } |
3521 | } |
|
|
3522 | while (pendingpri); |
3043 | } |
3523 | } |
3044 | |
3524 | |
3045 | #if EV_IDLE_ENABLE |
3525 | #if EV_IDLE_ENABLE |
3046 | /* make idle watchers pending. this handles the "call-idle */ |
3526 | /* make idle watchers pending. this handles the "call-idle */ |
3047 | /* only when higher priorities are idle" logic */ |
3527 | /* only when higher priorities are idle" logic */ |
3048 | inline_size void |
3528 | inline_size void |
3049 | idle_reify (EV_P) |
3529 | idle_reify (EV_P) |
3050 | { |
3530 | { |
3051 | if (expect_false (idleall)) |
3531 | if (ecb_expect_false (idleall)) |
3052 | { |
3532 | { |
3053 | int pri; |
3533 | int pri; |
3054 | |
3534 | |
3055 | for (pri = NUMPRI; pri--; ) |
3535 | for (pri = NUMPRI; pri--; ) |
3056 | { |
3536 | { |
… | |
… | |
3086 | { |
3566 | { |
3087 | ev_at (w) += w->repeat; |
3567 | ev_at (w) += w->repeat; |
3088 | if (ev_at (w) < mn_now) |
3568 | if (ev_at (w) < mn_now) |
3089 | ev_at (w) = mn_now; |
3569 | ev_at (w) = mn_now; |
3090 | |
3570 | |
3091 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3571 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
3092 | |
3572 | |
3093 | ANHE_at_cache (timers [HEAP0]); |
3573 | ANHE_at_cache (timers [HEAP0]); |
3094 | downheap (timers, timercnt, HEAP0); |
3574 | downheap (timers, timercnt, HEAP0); |
3095 | } |
3575 | } |
3096 | else |
3576 | else |
… | |
… | |
3105 | } |
3585 | } |
3106 | } |
3586 | } |
3107 | |
3587 | |
3108 | #if EV_PERIODIC_ENABLE |
3588 | #if EV_PERIODIC_ENABLE |
3109 | |
3589 | |
3110 | static void noinline |
3590 | ecb_noinline |
|
|
3591 | static void |
3111 | periodic_recalc (EV_P_ ev_periodic *w) |
3592 | periodic_recalc (EV_P_ ev_periodic *w) |
3112 | { |
3593 | { |
3113 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3594 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3114 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3595 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3115 | |
3596 | |
… | |
… | |
3117 | while (at <= ev_rt_now) |
3598 | while (at <= ev_rt_now) |
3118 | { |
3599 | { |
3119 | ev_tstamp nat = at + w->interval; |
3600 | ev_tstamp nat = at + w->interval; |
3120 | |
3601 | |
3121 | /* when resolution fails us, we use ev_rt_now */ |
3602 | /* when resolution fails us, we use ev_rt_now */ |
3122 | if (expect_false (nat == at)) |
3603 | if (ecb_expect_false (nat == at)) |
3123 | { |
3604 | { |
3124 | at = ev_rt_now; |
3605 | at = ev_rt_now; |
3125 | break; |
3606 | break; |
3126 | } |
3607 | } |
3127 | |
3608 | |
… | |
… | |
3173 | } |
3654 | } |
3174 | } |
3655 | } |
3175 | |
3656 | |
3176 | /* simply recalculate all periodics */ |
3657 | /* simply recalculate all periodics */ |
3177 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3658 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3178 | static void noinline ecb_cold |
3659 | ecb_noinline ecb_cold |
|
|
3660 | static void |
3179 | periodics_reschedule (EV_P) |
3661 | periodics_reschedule (EV_P) |
3180 | { |
3662 | { |
3181 | int i; |
3663 | int i; |
3182 | |
3664 | |
3183 | /* adjust periodics after time jump */ |
3665 | /* adjust periodics after time jump */ |
… | |
… | |
3196 | reheap (periodics, periodiccnt); |
3678 | reheap (periodics, periodiccnt); |
3197 | } |
3679 | } |
3198 | #endif |
3680 | #endif |
3199 | |
3681 | |
3200 | /* adjust all timers by a given offset */ |
3682 | /* adjust all timers by a given offset */ |
3201 | static void noinline ecb_cold |
3683 | ecb_noinline ecb_cold |
|
|
3684 | static void |
3202 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3685 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3203 | { |
3686 | { |
3204 | int i; |
3687 | int i; |
3205 | |
3688 | |
3206 | for (i = 0; i < timercnt; ++i) |
3689 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3215 | /* also detect if there was a timejump, and act accordingly */ |
3698 | /* also detect if there was a timejump, and act accordingly */ |
3216 | inline_speed void |
3699 | inline_speed void |
3217 | time_update (EV_P_ ev_tstamp max_block) |
3700 | time_update (EV_P_ ev_tstamp max_block) |
3218 | { |
3701 | { |
3219 | #if EV_USE_MONOTONIC |
3702 | #if EV_USE_MONOTONIC |
3220 | if (expect_true (have_monotonic)) |
3703 | if (ecb_expect_true (have_monotonic)) |
3221 | { |
3704 | { |
3222 | int i; |
3705 | int i; |
3223 | ev_tstamp odiff = rtmn_diff; |
3706 | ev_tstamp odiff = rtmn_diff; |
3224 | |
3707 | |
3225 | mn_now = get_clock (); |
3708 | mn_now = get_clock (); |
3226 | |
3709 | |
3227 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3710 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3228 | /* interpolate in the meantime */ |
3711 | /* interpolate in the meantime */ |
3229 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3712 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
3230 | { |
3713 | { |
3231 | ev_rt_now = rtmn_diff + mn_now; |
3714 | ev_rt_now = rtmn_diff + mn_now; |
3232 | return; |
3715 | return; |
3233 | } |
3716 | } |
3234 | |
3717 | |
… | |
… | |
3248 | ev_tstamp diff; |
3731 | ev_tstamp diff; |
3249 | rtmn_diff = ev_rt_now - mn_now; |
3732 | rtmn_diff = ev_rt_now - mn_now; |
3250 | |
3733 | |
3251 | diff = odiff - rtmn_diff; |
3734 | diff = odiff - rtmn_diff; |
3252 | |
3735 | |
3253 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3736 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
3254 | return; /* all is well */ |
3737 | return; /* all is well */ |
3255 | |
3738 | |
3256 | ev_rt_now = ev_time (); |
3739 | ev_rt_now = ev_time (); |
3257 | mn_now = get_clock (); |
3740 | mn_now = get_clock (); |
3258 | now_floor = mn_now; |
3741 | now_floor = mn_now; |
… | |
… | |
3267 | else |
3750 | else |
3268 | #endif |
3751 | #endif |
3269 | { |
3752 | { |
3270 | ev_rt_now = ev_time (); |
3753 | ev_rt_now = ev_time (); |
3271 | |
3754 | |
3272 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3755 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
3273 | { |
3756 | { |
3274 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3757 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3275 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3758 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3276 | #if EV_PERIODIC_ENABLE |
3759 | #if EV_PERIODIC_ENABLE |
3277 | periodics_reschedule (EV_A); |
3760 | periodics_reschedule (EV_A); |
… | |
… | |
3300 | #if EV_VERIFY >= 2 |
3783 | #if EV_VERIFY >= 2 |
3301 | ev_verify (EV_A); |
3784 | ev_verify (EV_A); |
3302 | #endif |
3785 | #endif |
3303 | |
3786 | |
3304 | #ifndef _WIN32 |
3787 | #ifndef _WIN32 |
3305 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3788 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3306 | if (expect_false (getpid () != curpid)) |
3789 | if (ecb_expect_false (getpid () != curpid)) |
3307 | { |
3790 | { |
3308 | curpid = getpid (); |
3791 | curpid = getpid (); |
3309 | postfork = 1; |
3792 | postfork = 1; |
3310 | } |
3793 | } |
3311 | #endif |
3794 | #endif |
3312 | |
3795 | |
3313 | #if EV_FORK_ENABLE |
3796 | #if EV_FORK_ENABLE |
3314 | /* we might have forked, so queue fork handlers */ |
3797 | /* we might have forked, so queue fork handlers */ |
3315 | if (expect_false (postfork)) |
3798 | if (ecb_expect_false (postfork)) |
3316 | if (forkcnt) |
3799 | if (forkcnt) |
3317 | { |
3800 | { |
3318 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3801 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3319 | EV_INVOKE_PENDING; |
3802 | EV_INVOKE_PENDING; |
3320 | } |
3803 | } |
3321 | #endif |
3804 | #endif |
3322 | |
3805 | |
3323 | #if EV_PREPARE_ENABLE |
3806 | #if EV_PREPARE_ENABLE |
3324 | /* queue prepare watchers (and execute them) */ |
3807 | /* queue prepare watchers (and execute them) */ |
3325 | if (expect_false (preparecnt)) |
3808 | if (ecb_expect_false (preparecnt)) |
3326 | { |
3809 | { |
3327 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3328 | EV_INVOKE_PENDING; |
3811 | EV_INVOKE_PENDING; |
3329 | } |
3812 | } |
3330 | #endif |
3813 | #endif |
3331 | |
3814 | |
3332 | if (expect_false (loop_done)) |
3815 | if (ecb_expect_false (loop_done)) |
3333 | break; |
3816 | break; |
3334 | |
3817 | |
3335 | /* we might have forked, so reify kernel state if necessary */ |
3818 | /* we might have forked, so reify kernel state if necessary */ |
3336 | if (expect_false (postfork)) |
3819 | if (ecb_expect_false (postfork)) |
3337 | loop_fork (EV_A); |
3820 | loop_fork (EV_A); |
3338 | |
3821 | |
3339 | /* update fd-related kernel structures */ |
3822 | /* update fd-related kernel structures */ |
3340 | fd_reify (EV_A); |
3823 | fd_reify (EV_A); |
3341 | |
3824 | |
… | |
… | |
3346 | |
3829 | |
3347 | /* remember old timestamp for io_blocktime calculation */ |
3830 | /* remember old timestamp for io_blocktime calculation */ |
3348 | ev_tstamp prev_mn_now = mn_now; |
3831 | ev_tstamp prev_mn_now = mn_now; |
3349 | |
3832 | |
3350 | /* update time to cancel out callback processing overhead */ |
3833 | /* update time to cancel out callback processing overhead */ |
3351 | time_update (EV_A_ 1e100); |
3834 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3352 | |
3835 | |
3353 | /* from now on, we want a pipe-wake-up */ |
3836 | /* from now on, we want a pipe-wake-up */ |
3354 | pipe_write_wanted = 1; |
3837 | pipe_write_wanted = 1; |
3355 | |
3838 | |
3356 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3839 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3357 | |
3840 | |
3358 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3841 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3359 | { |
3842 | { |
3360 | waittime = MAX_BLOCKTIME; |
3843 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
3361 | |
3844 | |
3362 | if (timercnt) |
3845 | if (timercnt) |
3363 | { |
3846 | { |
3364 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3847 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3365 | if (waittime > to) waittime = to; |
3848 | if (waittime > to) waittime = to; |
… | |
… | |
3372 | if (waittime > to) waittime = to; |
3855 | if (waittime > to) waittime = to; |
3373 | } |
3856 | } |
3374 | #endif |
3857 | #endif |
3375 | |
3858 | |
3376 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3859 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3377 | if (expect_false (waittime < timeout_blocktime)) |
3860 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3378 | waittime = timeout_blocktime; |
3861 | waittime = timeout_blocktime; |
3379 | |
3862 | |
3380 | /* at this point, we NEED to wait, so we have to ensure */ |
3863 | /* now there are two more special cases left, either we have |
3381 | /* to pass a minimum nonzero value to the backend */ |
3864 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3865 | * that expire very soon, in which case we need to weait for a minimum |
|
|
3866 | * amount of time for some event loop backends |
|
|
3867 | */ |
3382 | if (expect_false (waittime < backend_mintime)) |
3868 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3869 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3870 | ? EV_TS_CONST (0.) |
3383 | waittime = backend_mintime; |
3871 | : backend_mintime; |
3384 | |
3872 | |
3385 | /* extra check because io_blocktime is commonly 0 */ |
3873 | /* extra check because io_blocktime is commonly 0 */ |
3386 | if (expect_false (io_blocktime)) |
3874 | if (ecb_expect_false (io_blocktime)) |
3387 | { |
3875 | { |
3388 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3876 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3389 | |
3877 | |
3390 | if (sleeptime > waittime - backend_mintime) |
3878 | if (sleeptime > waittime - backend_mintime) |
3391 | sleeptime = waittime - backend_mintime; |
3879 | sleeptime = waittime - backend_mintime; |
3392 | |
3880 | |
3393 | if (expect_true (sleeptime > 0.)) |
3881 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3394 | { |
3882 | { |
3395 | ev_sleep (sleeptime); |
3883 | ev_sleep (sleeptime); |
3396 | waittime -= sleeptime; |
3884 | waittime -= sleeptime; |
3397 | } |
3885 | } |
3398 | } |
3886 | } |
… | |
… | |
3412 | { |
3900 | { |
3413 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3901 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3414 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3902 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3415 | } |
3903 | } |
3416 | |
3904 | |
3417 | |
|
|
3418 | /* update ev_rt_now, do magic */ |
3905 | /* update ev_rt_now, do magic */ |
3419 | time_update (EV_A_ waittime + sleeptime); |
3906 | time_update (EV_A_ waittime + sleeptime); |
3420 | } |
3907 | } |
3421 | |
3908 | |
3422 | /* queue pending timers and reschedule them */ |
3909 | /* queue pending timers and reschedule them */ |
… | |
… | |
3430 | idle_reify (EV_A); |
3917 | idle_reify (EV_A); |
3431 | #endif |
3918 | #endif |
3432 | |
3919 | |
3433 | #if EV_CHECK_ENABLE |
3920 | #if EV_CHECK_ENABLE |
3434 | /* queue check watchers, to be executed first */ |
3921 | /* queue check watchers, to be executed first */ |
3435 | if (expect_false (checkcnt)) |
3922 | if (ecb_expect_false (checkcnt)) |
3436 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3923 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3437 | #endif |
3924 | #endif |
3438 | |
3925 | |
3439 | EV_INVOKE_PENDING; |
3926 | EV_INVOKE_PENDING; |
3440 | } |
3927 | } |
3441 | while (expect_true ( |
3928 | while (ecb_expect_true ( |
3442 | activecnt |
3929 | activecnt |
3443 | && !loop_done |
3930 | && !loop_done |
3444 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3931 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3445 | )); |
3932 | )); |
3446 | |
3933 | |
… | |
… | |
3453 | |
3940 | |
3454 | return activecnt; |
3941 | return activecnt; |
3455 | } |
3942 | } |
3456 | |
3943 | |
3457 | void |
3944 | void |
3458 | ev_break (EV_P_ int how) EV_THROW |
3945 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3459 | { |
3946 | { |
3460 | loop_done = how; |
3947 | loop_done = how; |
3461 | } |
3948 | } |
3462 | |
3949 | |
3463 | void |
3950 | void |
3464 | ev_ref (EV_P) EV_THROW |
3951 | ev_ref (EV_P) EV_NOEXCEPT |
3465 | { |
3952 | { |
3466 | ++activecnt; |
3953 | ++activecnt; |
3467 | } |
3954 | } |
3468 | |
3955 | |
3469 | void |
3956 | void |
3470 | ev_unref (EV_P) EV_THROW |
3957 | ev_unref (EV_P) EV_NOEXCEPT |
3471 | { |
3958 | { |
3472 | --activecnt; |
3959 | --activecnt; |
3473 | } |
3960 | } |
3474 | |
3961 | |
3475 | void |
3962 | void |
3476 | ev_now_update (EV_P) EV_THROW |
3963 | ev_now_update (EV_P) EV_NOEXCEPT |
3477 | { |
3964 | { |
3478 | time_update (EV_A_ 1e100); |
3965 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3479 | } |
3966 | } |
3480 | |
3967 | |
3481 | void |
3968 | void |
3482 | ev_suspend (EV_P) EV_THROW |
3969 | ev_suspend (EV_P) EV_NOEXCEPT |
3483 | { |
3970 | { |
3484 | ev_now_update (EV_A); |
3971 | ev_now_update (EV_A); |
3485 | } |
3972 | } |
3486 | |
3973 | |
3487 | void |
3974 | void |
3488 | ev_resume (EV_P) EV_THROW |
3975 | ev_resume (EV_P) EV_NOEXCEPT |
3489 | { |
3976 | { |
3490 | ev_tstamp mn_prev = mn_now; |
3977 | ev_tstamp mn_prev = mn_now; |
3491 | |
3978 | |
3492 | ev_now_update (EV_A); |
3979 | ev_now_update (EV_A); |
3493 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3980 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3510 | inline_size void |
3997 | inline_size void |
3511 | wlist_del (WL *head, WL elem) |
3998 | wlist_del (WL *head, WL elem) |
3512 | { |
3999 | { |
3513 | while (*head) |
4000 | while (*head) |
3514 | { |
4001 | { |
3515 | if (expect_true (*head == elem)) |
4002 | if (ecb_expect_true (*head == elem)) |
3516 | { |
4003 | { |
3517 | *head = elem->next; |
4004 | *head = elem->next; |
3518 | break; |
4005 | break; |
3519 | } |
4006 | } |
3520 | |
4007 | |
… | |
… | |
3532 | w->pending = 0; |
4019 | w->pending = 0; |
3533 | } |
4020 | } |
3534 | } |
4021 | } |
3535 | |
4022 | |
3536 | int |
4023 | int |
3537 | ev_clear_pending (EV_P_ void *w) EV_THROW |
4024 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3538 | { |
4025 | { |
3539 | W w_ = (W)w; |
4026 | W w_ = (W)w; |
3540 | int pending = w_->pending; |
4027 | int pending = w_->pending; |
3541 | |
4028 | |
3542 | if (expect_true (pending)) |
4029 | if (ecb_expect_true (pending)) |
3543 | { |
4030 | { |
3544 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4031 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3545 | p->w = (W)&pending_w; |
4032 | p->w = (W)&pending_w; |
3546 | w_->pending = 0; |
4033 | w_->pending = 0; |
3547 | return p->events; |
4034 | return p->events; |
… | |
… | |
3574 | w->active = 0; |
4061 | w->active = 0; |
3575 | } |
4062 | } |
3576 | |
4063 | |
3577 | /*****************************************************************************/ |
4064 | /*****************************************************************************/ |
3578 | |
4065 | |
3579 | void noinline |
4066 | ecb_noinline |
|
|
4067 | void |
3580 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
4068 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3581 | { |
4069 | { |
3582 | int fd = w->fd; |
4070 | int fd = w->fd; |
3583 | |
4071 | |
3584 | if (expect_false (ev_is_active (w))) |
4072 | if (ecb_expect_false (ev_is_active (w))) |
3585 | return; |
4073 | return; |
3586 | |
4074 | |
3587 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4075 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3588 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4076 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3589 | |
4077 | |
|
|
4078 | #if EV_VERIFY >= 2 |
|
|
4079 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4080 | #endif |
3590 | EV_FREQUENT_CHECK; |
4081 | EV_FREQUENT_CHECK; |
3591 | |
4082 | |
3592 | ev_start (EV_A_ (W)w, 1); |
4083 | ev_start (EV_A_ (W)w, 1); |
3593 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4084 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3594 | wlist_add (&anfds[fd].head, (WL)w); |
4085 | wlist_add (&anfds[fd].head, (WL)w); |
3595 | |
4086 | |
3596 | /* common bug, apparently */ |
4087 | /* common bug, apparently */ |
3597 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
4088 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3598 | |
4089 | |
… | |
… | |
3600 | w->events &= ~EV__IOFDSET; |
4091 | w->events &= ~EV__IOFDSET; |
3601 | |
4092 | |
3602 | EV_FREQUENT_CHECK; |
4093 | EV_FREQUENT_CHECK; |
3603 | } |
4094 | } |
3604 | |
4095 | |
3605 | void noinline |
4096 | ecb_noinline |
|
|
4097 | void |
3606 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
4098 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3607 | { |
4099 | { |
3608 | clear_pending (EV_A_ (W)w); |
4100 | clear_pending (EV_A_ (W)w); |
3609 | if (expect_false (!ev_is_active (w))) |
4101 | if (ecb_expect_false (!ev_is_active (w))) |
3610 | return; |
4102 | return; |
3611 | |
4103 | |
3612 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4104 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3613 | |
4105 | |
|
|
4106 | #if EV_VERIFY >= 2 |
|
|
4107 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4108 | #endif |
3614 | EV_FREQUENT_CHECK; |
4109 | EV_FREQUENT_CHECK; |
3615 | |
4110 | |
3616 | wlist_del (&anfds[w->fd].head, (WL)w); |
4111 | wlist_del (&anfds[w->fd].head, (WL)w); |
3617 | ev_stop (EV_A_ (W)w); |
4112 | ev_stop (EV_A_ (W)w); |
3618 | |
4113 | |
3619 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4114 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3620 | |
4115 | |
3621 | EV_FREQUENT_CHECK; |
4116 | EV_FREQUENT_CHECK; |
3622 | } |
4117 | } |
3623 | |
4118 | |
3624 | void noinline |
4119 | ecb_noinline |
|
|
4120 | void |
3625 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
4121 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3626 | { |
4122 | { |
3627 | if (expect_false (ev_is_active (w))) |
4123 | if (ecb_expect_false (ev_is_active (w))) |
3628 | return; |
4124 | return; |
3629 | |
4125 | |
3630 | ev_at (w) += mn_now; |
4126 | ev_at (w) += mn_now; |
3631 | |
4127 | |
3632 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4128 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3633 | |
4129 | |
3634 | EV_FREQUENT_CHECK; |
4130 | EV_FREQUENT_CHECK; |
3635 | |
4131 | |
3636 | ++timercnt; |
4132 | ++timercnt; |
3637 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4133 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3638 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4134 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3639 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4135 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3640 | ANHE_at_cache (timers [ev_active (w)]); |
4136 | ANHE_at_cache (timers [ev_active (w)]); |
3641 | upheap (timers, ev_active (w)); |
4137 | upheap (timers, ev_active (w)); |
3642 | |
4138 | |
3643 | EV_FREQUENT_CHECK; |
4139 | EV_FREQUENT_CHECK; |
3644 | |
4140 | |
3645 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4141 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3646 | } |
4142 | } |
3647 | |
4143 | |
3648 | void noinline |
4144 | ecb_noinline |
|
|
4145 | void |
3649 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
4146 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3650 | { |
4147 | { |
3651 | clear_pending (EV_A_ (W)w); |
4148 | clear_pending (EV_A_ (W)w); |
3652 | if (expect_false (!ev_is_active (w))) |
4149 | if (ecb_expect_false (!ev_is_active (w))) |
3653 | return; |
4150 | return; |
3654 | |
4151 | |
3655 | EV_FREQUENT_CHECK; |
4152 | EV_FREQUENT_CHECK; |
3656 | |
4153 | |
3657 | { |
4154 | { |
… | |
… | |
3659 | |
4156 | |
3660 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4157 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3661 | |
4158 | |
3662 | --timercnt; |
4159 | --timercnt; |
3663 | |
4160 | |
3664 | if (expect_true (active < timercnt + HEAP0)) |
4161 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3665 | { |
4162 | { |
3666 | timers [active] = timers [timercnt + HEAP0]; |
4163 | timers [active] = timers [timercnt + HEAP0]; |
3667 | adjustheap (timers, timercnt, active); |
4164 | adjustheap (timers, timercnt, active); |
3668 | } |
4165 | } |
3669 | } |
4166 | } |
… | |
… | |
3673 | ev_stop (EV_A_ (W)w); |
4170 | ev_stop (EV_A_ (W)w); |
3674 | |
4171 | |
3675 | EV_FREQUENT_CHECK; |
4172 | EV_FREQUENT_CHECK; |
3676 | } |
4173 | } |
3677 | |
4174 | |
3678 | void noinline |
4175 | ecb_noinline |
|
|
4176 | void |
3679 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4177 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3680 | { |
4178 | { |
3681 | EV_FREQUENT_CHECK; |
4179 | EV_FREQUENT_CHECK; |
3682 | |
4180 | |
3683 | clear_pending (EV_A_ (W)w); |
4181 | clear_pending (EV_A_ (W)w); |
3684 | |
4182 | |
… | |
… | |
3701 | |
4199 | |
3702 | EV_FREQUENT_CHECK; |
4200 | EV_FREQUENT_CHECK; |
3703 | } |
4201 | } |
3704 | |
4202 | |
3705 | ev_tstamp |
4203 | ev_tstamp |
3706 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4204 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3707 | { |
4205 | { |
3708 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4206 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
3709 | } |
4207 | } |
3710 | |
4208 | |
3711 | #if EV_PERIODIC_ENABLE |
4209 | #if EV_PERIODIC_ENABLE |
3712 | void noinline |
4210 | ecb_noinline |
|
|
4211 | void |
3713 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4212 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3714 | { |
4213 | { |
3715 | if (expect_false (ev_is_active (w))) |
4214 | if (ecb_expect_false (ev_is_active (w))) |
3716 | return; |
4215 | return; |
3717 | |
4216 | |
3718 | if (w->reschedule_cb) |
4217 | if (w->reschedule_cb) |
3719 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4218 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3720 | else if (w->interval) |
4219 | else if (w->interval) |
… | |
… | |
3727 | |
4226 | |
3728 | EV_FREQUENT_CHECK; |
4227 | EV_FREQUENT_CHECK; |
3729 | |
4228 | |
3730 | ++periodiccnt; |
4229 | ++periodiccnt; |
3731 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4230 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3732 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4231 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3733 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4232 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3734 | ANHE_at_cache (periodics [ev_active (w)]); |
4233 | ANHE_at_cache (periodics [ev_active (w)]); |
3735 | upheap (periodics, ev_active (w)); |
4234 | upheap (periodics, ev_active (w)); |
3736 | |
4235 | |
3737 | EV_FREQUENT_CHECK; |
4236 | EV_FREQUENT_CHECK; |
3738 | |
4237 | |
3739 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4238 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3740 | } |
4239 | } |
3741 | |
4240 | |
3742 | void noinline |
4241 | ecb_noinline |
|
|
4242 | void |
3743 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4243 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3744 | { |
4244 | { |
3745 | clear_pending (EV_A_ (W)w); |
4245 | clear_pending (EV_A_ (W)w); |
3746 | if (expect_false (!ev_is_active (w))) |
4246 | if (ecb_expect_false (!ev_is_active (w))) |
3747 | return; |
4247 | return; |
3748 | |
4248 | |
3749 | EV_FREQUENT_CHECK; |
4249 | EV_FREQUENT_CHECK; |
3750 | |
4250 | |
3751 | { |
4251 | { |
… | |
… | |
3753 | |
4253 | |
3754 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4254 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3755 | |
4255 | |
3756 | --periodiccnt; |
4256 | --periodiccnt; |
3757 | |
4257 | |
3758 | if (expect_true (active < periodiccnt + HEAP0)) |
4258 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3759 | { |
4259 | { |
3760 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4260 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3761 | adjustheap (periodics, periodiccnt, active); |
4261 | adjustheap (periodics, periodiccnt, active); |
3762 | } |
4262 | } |
3763 | } |
4263 | } |
… | |
… | |
3765 | ev_stop (EV_A_ (W)w); |
4265 | ev_stop (EV_A_ (W)w); |
3766 | |
4266 | |
3767 | EV_FREQUENT_CHECK; |
4267 | EV_FREQUENT_CHECK; |
3768 | } |
4268 | } |
3769 | |
4269 | |
3770 | void noinline |
4270 | ecb_noinline |
|
|
4271 | void |
3771 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4272 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3772 | { |
4273 | { |
3773 | /* TODO: use adjustheap and recalculation */ |
4274 | /* TODO: use adjustheap and recalculation */ |
3774 | ev_periodic_stop (EV_A_ w); |
4275 | ev_periodic_stop (EV_A_ w); |
3775 | ev_periodic_start (EV_A_ w); |
4276 | ev_periodic_start (EV_A_ w); |
3776 | } |
4277 | } |
… | |
… | |
3780 | # define SA_RESTART 0 |
4281 | # define SA_RESTART 0 |
3781 | #endif |
4282 | #endif |
3782 | |
4283 | |
3783 | #if EV_SIGNAL_ENABLE |
4284 | #if EV_SIGNAL_ENABLE |
3784 | |
4285 | |
3785 | void noinline |
4286 | ecb_noinline |
|
|
4287 | void |
3786 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4288 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3787 | { |
4289 | { |
3788 | if (expect_false (ev_is_active (w))) |
4290 | if (ecb_expect_false (ev_is_active (w))) |
3789 | return; |
4291 | return; |
3790 | |
4292 | |
3791 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4293 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3792 | |
4294 | |
3793 | #if EV_MULTIPLICITY |
4295 | #if EV_MULTIPLICITY |
… | |
… | |
3862 | } |
4364 | } |
3863 | |
4365 | |
3864 | EV_FREQUENT_CHECK; |
4366 | EV_FREQUENT_CHECK; |
3865 | } |
4367 | } |
3866 | |
4368 | |
3867 | void noinline |
4369 | ecb_noinline |
|
|
4370 | void |
3868 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4371 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3869 | { |
4372 | { |
3870 | clear_pending (EV_A_ (W)w); |
4373 | clear_pending (EV_A_ (W)w); |
3871 | if (expect_false (!ev_is_active (w))) |
4374 | if (ecb_expect_false (!ev_is_active (w))) |
3872 | return; |
4375 | return; |
3873 | |
4376 | |
3874 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
3875 | |
4378 | |
3876 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4379 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3904 | #endif |
4407 | #endif |
3905 | |
4408 | |
3906 | #if EV_CHILD_ENABLE |
4409 | #if EV_CHILD_ENABLE |
3907 | |
4410 | |
3908 | void |
4411 | void |
3909 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4412 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3910 | { |
4413 | { |
3911 | #if EV_MULTIPLICITY |
4414 | #if EV_MULTIPLICITY |
3912 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4415 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3913 | #endif |
4416 | #endif |
3914 | if (expect_false (ev_is_active (w))) |
4417 | if (ecb_expect_false (ev_is_active (w))) |
3915 | return; |
4418 | return; |
3916 | |
4419 | |
3917 | EV_FREQUENT_CHECK; |
4420 | EV_FREQUENT_CHECK; |
3918 | |
4421 | |
3919 | ev_start (EV_A_ (W)w, 1); |
4422 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3921 | |
4424 | |
3922 | EV_FREQUENT_CHECK; |
4425 | EV_FREQUENT_CHECK; |
3923 | } |
4426 | } |
3924 | |
4427 | |
3925 | void |
4428 | void |
3926 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4429 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3927 | { |
4430 | { |
3928 | clear_pending (EV_A_ (W)w); |
4431 | clear_pending (EV_A_ (W)w); |
3929 | if (expect_false (!ev_is_active (w))) |
4432 | if (ecb_expect_false (!ev_is_active (w))) |
3930 | return; |
4433 | return; |
3931 | |
4434 | |
3932 | EV_FREQUENT_CHECK; |
4435 | EV_FREQUENT_CHECK; |
3933 | |
4436 | |
3934 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4437 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3948 | |
4451 | |
3949 | #define DEF_STAT_INTERVAL 5.0074891 |
4452 | #define DEF_STAT_INTERVAL 5.0074891 |
3950 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4453 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3951 | #define MIN_STAT_INTERVAL 0.1074891 |
4454 | #define MIN_STAT_INTERVAL 0.1074891 |
3952 | |
4455 | |
3953 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4456 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3954 | |
4457 | |
3955 | #if EV_USE_INOTIFY |
4458 | #if EV_USE_INOTIFY |
3956 | |
4459 | |
3957 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4460 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3958 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4461 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3959 | |
4462 | |
3960 | static void noinline |
4463 | ecb_noinline |
|
|
4464 | static void |
3961 | infy_add (EV_P_ ev_stat *w) |
4465 | infy_add (EV_P_ ev_stat *w) |
3962 | { |
4466 | { |
3963 | w->wd = inotify_add_watch (fs_fd, w->path, |
4467 | w->wd = inotify_add_watch (fs_fd, w->path, |
3964 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4468 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3965 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4469 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
4029 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4533 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4030 | ev_timer_again (EV_A_ &w->timer); |
4534 | ev_timer_again (EV_A_ &w->timer); |
4031 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4535 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4032 | } |
4536 | } |
4033 | |
4537 | |
4034 | static void noinline |
4538 | ecb_noinline |
|
|
4539 | static void |
4035 | infy_del (EV_P_ ev_stat *w) |
4540 | infy_del (EV_P_ ev_stat *w) |
4036 | { |
4541 | { |
4037 | int slot; |
4542 | int slot; |
4038 | int wd = w->wd; |
4543 | int wd = w->wd; |
4039 | |
4544 | |
… | |
… | |
4046 | |
4551 | |
4047 | /* remove this watcher, if others are watching it, they will rearm */ |
4552 | /* remove this watcher, if others are watching it, they will rearm */ |
4048 | inotify_rm_watch (fs_fd, wd); |
4553 | inotify_rm_watch (fs_fd, wd); |
4049 | } |
4554 | } |
4050 | |
4555 | |
4051 | static void noinline |
4556 | ecb_noinline |
|
|
4557 | static void |
4052 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4558 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4053 | { |
4559 | { |
4054 | if (slot < 0) |
4560 | if (slot < 0) |
4055 | /* overflow, need to check for all hash slots */ |
4561 | /* overflow, need to check for all hash slots */ |
4056 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4562 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4092 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4598 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4093 | ofs += sizeof (struct inotify_event) + ev->len; |
4599 | ofs += sizeof (struct inotify_event) + ev->len; |
4094 | } |
4600 | } |
4095 | } |
4601 | } |
4096 | |
4602 | |
4097 | inline_size void ecb_cold |
4603 | inline_size ecb_cold |
|
|
4604 | void |
4098 | ev_check_2625 (EV_P) |
4605 | ev_check_2625 (EV_P) |
4099 | { |
4606 | { |
4100 | /* kernels < 2.6.25 are borked |
4607 | /* kernels < 2.6.25 are borked |
4101 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4608 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4102 | */ |
4609 | */ |
… | |
… | |
4192 | #else |
4699 | #else |
4193 | # define EV_LSTAT(p,b) lstat (p, b) |
4700 | # define EV_LSTAT(p,b) lstat (p, b) |
4194 | #endif |
4701 | #endif |
4195 | |
4702 | |
4196 | void |
4703 | void |
4197 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4704 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4198 | { |
4705 | { |
4199 | if (lstat (w->path, &w->attr) < 0) |
4706 | if (lstat (w->path, &w->attr) < 0) |
4200 | w->attr.st_nlink = 0; |
4707 | w->attr.st_nlink = 0; |
4201 | else if (!w->attr.st_nlink) |
4708 | else if (!w->attr.st_nlink) |
4202 | w->attr.st_nlink = 1; |
4709 | w->attr.st_nlink = 1; |
4203 | } |
4710 | } |
4204 | |
4711 | |
4205 | static void noinline |
4712 | ecb_noinline |
|
|
4713 | static void |
4206 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4714 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4207 | { |
4715 | { |
4208 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4716 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4209 | |
4717 | |
4210 | ev_statdata prev = w->attr; |
4718 | ev_statdata prev = w->attr; |
… | |
… | |
4241 | ev_feed_event (EV_A_ w, EV_STAT); |
4749 | ev_feed_event (EV_A_ w, EV_STAT); |
4242 | } |
4750 | } |
4243 | } |
4751 | } |
4244 | |
4752 | |
4245 | void |
4753 | void |
4246 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4754 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4247 | { |
4755 | { |
4248 | if (expect_false (ev_is_active (w))) |
4756 | if (ecb_expect_false (ev_is_active (w))) |
4249 | return; |
4757 | return; |
4250 | |
4758 | |
4251 | ev_stat_stat (EV_A_ w); |
4759 | ev_stat_stat (EV_A_ w); |
4252 | |
4760 | |
4253 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4761 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4272 | |
4780 | |
4273 | EV_FREQUENT_CHECK; |
4781 | EV_FREQUENT_CHECK; |
4274 | } |
4782 | } |
4275 | |
4783 | |
4276 | void |
4784 | void |
4277 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4785 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4278 | { |
4786 | { |
4279 | clear_pending (EV_A_ (W)w); |
4787 | clear_pending (EV_A_ (W)w); |
4280 | if (expect_false (!ev_is_active (w))) |
4788 | if (ecb_expect_false (!ev_is_active (w))) |
4281 | return; |
4789 | return; |
4282 | |
4790 | |
4283 | EV_FREQUENT_CHECK; |
4791 | EV_FREQUENT_CHECK; |
4284 | |
4792 | |
4285 | #if EV_USE_INOTIFY |
4793 | #if EV_USE_INOTIFY |
… | |
… | |
4298 | } |
4806 | } |
4299 | #endif |
4807 | #endif |
4300 | |
4808 | |
4301 | #if EV_IDLE_ENABLE |
4809 | #if EV_IDLE_ENABLE |
4302 | void |
4810 | void |
4303 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4811 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4304 | { |
4812 | { |
4305 | if (expect_false (ev_is_active (w))) |
4813 | if (ecb_expect_false (ev_is_active (w))) |
4306 | return; |
4814 | return; |
4307 | |
4815 | |
4308 | pri_adjust (EV_A_ (W)w); |
4816 | pri_adjust (EV_A_ (W)w); |
4309 | |
4817 | |
4310 | EV_FREQUENT_CHECK; |
4818 | EV_FREQUENT_CHECK; |
… | |
… | |
4313 | int active = ++idlecnt [ABSPRI (w)]; |
4821 | int active = ++idlecnt [ABSPRI (w)]; |
4314 | |
4822 | |
4315 | ++idleall; |
4823 | ++idleall; |
4316 | ev_start (EV_A_ (W)w, active); |
4824 | ev_start (EV_A_ (W)w, active); |
4317 | |
4825 | |
4318 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4826 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4319 | idles [ABSPRI (w)][active - 1] = w; |
4827 | idles [ABSPRI (w)][active - 1] = w; |
4320 | } |
4828 | } |
4321 | |
4829 | |
4322 | EV_FREQUENT_CHECK; |
4830 | EV_FREQUENT_CHECK; |
4323 | } |
4831 | } |
4324 | |
4832 | |
4325 | void |
4833 | void |
4326 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4834 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4327 | { |
4835 | { |
4328 | clear_pending (EV_A_ (W)w); |
4836 | clear_pending (EV_A_ (W)w); |
4329 | if (expect_false (!ev_is_active (w))) |
4837 | if (ecb_expect_false (!ev_is_active (w))) |
4330 | return; |
4838 | return; |
4331 | |
4839 | |
4332 | EV_FREQUENT_CHECK; |
4840 | EV_FREQUENT_CHECK; |
4333 | |
4841 | |
4334 | { |
4842 | { |
… | |
… | |
4345 | } |
4853 | } |
4346 | #endif |
4854 | #endif |
4347 | |
4855 | |
4348 | #if EV_PREPARE_ENABLE |
4856 | #if EV_PREPARE_ENABLE |
4349 | void |
4857 | void |
4350 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4858 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4351 | { |
4859 | { |
4352 | if (expect_false (ev_is_active (w))) |
4860 | if (ecb_expect_false (ev_is_active (w))) |
4353 | return; |
4861 | return; |
4354 | |
4862 | |
4355 | EV_FREQUENT_CHECK; |
4863 | EV_FREQUENT_CHECK; |
4356 | |
4864 | |
4357 | ev_start (EV_A_ (W)w, ++preparecnt); |
4865 | ev_start (EV_A_ (W)w, ++preparecnt); |
4358 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4866 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4359 | prepares [preparecnt - 1] = w; |
4867 | prepares [preparecnt - 1] = w; |
4360 | |
4868 | |
4361 | EV_FREQUENT_CHECK; |
4869 | EV_FREQUENT_CHECK; |
4362 | } |
4870 | } |
4363 | |
4871 | |
4364 | void |
4872 | void |
4365 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4873 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4366 | { |
4874 | { |
4367 | clear_pending (EV_A_ (W)w); |
4875 | clear_pending (EV_A_ (W)w); |
4368 | if (expect_false (!ev_is_active (w))) |
4876 | if (ecb_expect_false (!ev_is_active (w))) |
4369 | return; |
4877 | return; |
4370 | |
4878 | |
4371 | EV_FREQUENT_CHECK; |
4879 | EV_FREQUENT_CHECK; |
4372 | |
4880 | |
4373 | { |
4881 | { |
… | |
… | |
4383 | } |
4891 | } |
4384 | #endif |
4892 | #endif |
4385 | |
4893 | |
4386 | #if EV_CHECK_ENABLE |
4894 | #if EV_CHECK_ENABLE |
4387 | void |
4895 | void |
4388 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4896 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4389 | { |
4897 | { |
4390 | if (expect_false (ev_is_active (w))) |
4898 | if (ecb_expect_false (ev_is_active (w))) |
4391 | return; |
4899 | return; |
4392 | |
4900 | |
4393 | EV_FREQUENT_CHECK; |
4901 | EV_FREQUENT_CHECK; |
4394 | |
4902 | |
4395 | ev_start (EV_A_ (W)w, ++checkcnt); |
4903 | ev_start (EV_A_ (W)w, ++checkcnt); |
4396 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4904 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4397 | checks [checkcnt - 1] = w; |
4905 | checks [checkcnt - 1] = w; |
4398 | |
4906 | |
4399 | EV_FREQUENT_CHECK; |
4907 | EV_FREQUENT_CHECK; |
4400 | } |
4908 | } |
4401 | |
4909 | |
4402 | void |
4910 | void |
4403 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4911 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4404 | { |
4912 | { |
4405 | clear_pending (EV_A_ (W)w); |
4913 | clear_pending (EV_A_ (W)w); |
4406 | if (expect_false (!ev_is_active (w))) |
4914 | if (ecb_expect_false (!ev_is_active (w))) |
4407 | return; |
4915 | return; |
4408 | |
4916 | |
4409 | EV_FREQUENT_CHECK; |
4917 | EV_FREQUENT_CHECK; |
4410 | |
4918 | |
4411 | { |
4919 | { |
… | |
… | |
4420 | EV_FREQUENT_CHECK; |
4928 | EV_FREQUENT_CHECK; |
4421 | } |
4929 | } |
4422 | #endif |
4930 | #endif |
4423 | |
4931 | |
4424 | #if EV_EMBED_ENABLE |
4932 | #if EV_EMBED_ENABLE |
4425 | void noinline |
4933 | ecb_noinline |
|
|
4934 | void |
4426 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4935 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4427 | { |
4936 | { |
4428 | ev_run (w->other, EVRUN_NOWAIT); |
4937 | ev_run (w->other, EVRUN_NOWAIT); |
4429 | } |
4938 | } |
4430 | |
4939 | |
4431 | static void |
4940 | static void |
… | |
… | |
4479 | ev_idle_stop (EV_A_ idle); |
4988 | ev_idle_stop (EV_A_ idle); |
4480 | } |
4989 | } |
4481 | #endif |
4990 | #endif |
4482 | |
4991 | |
4483 | void |
4992 | void |
4484 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4993 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4485 | { |
4994 | { |
4486 | if (expect_false (ev_is_active (w))) |
4995 | if (ecb_expect_false (ev_is_active (w))) |
4487 | return; |
4996 | return; |
4488 | |
4997 | |
4489 | { |
4998 | { |
4490 | EV_P = w->other; |
4999 | EV_P = w->other; |
4491 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5000 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4510 | |
5019 | |
4511 | EV_FREQUENT_CHECK; |
5020 | EV_FREQUENT_CHECK; |
4512 | } |
5021 | } |
4513 | |
5022 | |
4514 | void |
5023 | void |
4515 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
5024 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4516 | { |
5025 | { |
4517 | clear_pending (EV_A_ (W)w); |
5026 | clear_pending (EV_A_ (W)w); |
4518 | if (expect_false (!ev_is_active (w))) |
5027 | if (ecb_expect_false (!ev_is_active (w))) |
4519 | return; |
5028 | return; |
4520 | |
5029 | |
4521 | EV_FREQUENT_CHECK; |
5030 | EV_FREQUENT_CHECK; |
4522 | |
5031 | |
4523 | ev_io_stop (EV_A_ &w->io); |
5032 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
4530 | } |
5039 | } |
4531 | #endif |
5040 | #endif |
4532 | |
5041 | |
4533 | #if EV_FORK_ENABLE |
5042 | #if EV_FORK_ENABLE |
4534 | void |
5043 | void |
4535 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
5044 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4536 | { |
5045 | { |
4537 | if (expect_false (ev_is_active (w))) |
5046 | if (ecb_expect_false (ev_is_active (w))) |
4538 | return; |
5047 | return; |
4539 | |
5048 | |
4540 | EV_FREQUENT_CHECK; |
5049 | EV_FREQUENT_CHECK; |
4541 | |
5050 | |
4542 | ev_start (EV_A_ (W)w, ++forkcnt); |
5051 | ev_start (EV_A_ (W)w, ++forkcnt); |
4543 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5052 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4544 | forks [forkcnt - 1] = w; |
5053 | forks [forkcnt - 1] = w; |
4545 | |
5054 | |
4546 | EV_FREQUENT_CHECK; |
5055 | EV_FREQUENT_CHECK; |
4547 | } |
5056 | } |
4548 | |
5057 | |
4549 | void |
5058 | void |
4550 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
5059 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4551 | { |
5060 | { |
4552 | clear_pending (EV_A_ (W)w); |
5061 | clear_pending (EV_A_ (W)w); |
4553 | if (expect_false (!ev_is_active (w))) |
5062 | if (ecb_expect_false (!ev_is_active (w))) |
4554 | return; |
5063 | return; |
4555 | |
5064 | |
4556 | EV_FREQUENT_CHECK; |
5065 | EV_FREQUENT_CHECK; |
4557 | |
5066 | |
4558 | { |
5067 | { |
… | |
… | |
4568 | } |
5077 | } |
4569 | #endif |
5078 | #endif |
4570 | |
5079 | |
4571 | #if EV_CLEANUP_ENABLE |
5080 | #if EV_CLEANUP_ENABLE |
4572 | void |
5081 | void |
4573 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
5082 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4574 | { |
5083 | { |
4575 | if (expect_false (ev_is_active (w))) |
5084 | if (ecb_expect_false (ev_is_active (w))) |
4576 | return; |
5085 | return; |
4577 | |
5086 | |
4578 | EV_FREQUENT_CHECK; |
5087 | EV_FREQUENT_CHECK; |
4579 | |
5088 | |
4580 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5089 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4581 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5090 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4582 | cleanups [cleanupcnt - 1] = w; |
5091 | cleanups [cleanupcnt - 1] = w; |
4583 | |
5092 | |
4584 | /* cleanup watchers should never keep a refcount on the loop */ |
5093 | /* cleanup watchers should never keep a refcount on the loop */ |
4585 | ev_unref (EV_A); |
5094 | ev_unref (EV_A); |
4586 | EV_FREQUENT_CHECK; |
5095 | EV_FREQUENT_CHECK; |
4587 | } |
5096 | } |
4588 | |
5097 | |
4589 | void |
5098 | void |
4590 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
5099 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4591 | { |
5100 | { |
4592 | clear_pending (EV_A_ (W)w); |
5101 | clear_pending (EV_A_ (W)w); |
4593 | if (expect_false (!ev_is_active (w))) |
5102 | if (ecb_expect_false (!ev_is_active (w))) |
4594 | return; |
5103 | return; |
4595 | |
5104 | |
4596 | EV_FREQUENT_CHECK; |
5105 | EV_FREQUENT_CHECK; |
4597 | ev_ref (EV_A); |
5106 | ev_ref (EV_A); |
4598 | |
5107 | |
… | |
… | |
4609 | } |
5118 | } |
4610 | #endif |
5119 | #endif |
4611 | |
5120 | |
4612 | #if EV_ASYNC_ENABLE |
5121 | #if EV_ASYNC_ENABLE |
4613 | void |
5122 | void |
4614 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
5123 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4615 | { |
5124 | { |
4616 | if (expect_false (ev_is_active (w))) |
5125 | if (ecb_expect_false (ev_is_active (w))) |
4617 | return; |
5126 | return; |
4618 | |
5127 | |
4619 | w->sent = 0; |
5128 | w->sent = 0; |
4620 | |
5129 | |
4621 | evpipe_init (EV_A); |
5130 | evpipe_init (EV_A); |
4622 | |
5131 | |
4623 | EV_FREQUENT_CHECK; |
5132 | EV_FREQUENT_CHECK; |
4624 | |
5133 | |
4625 | ev_start (EV_A_ (W)w, ++asynccnt); |
5134 | ev_start (EV_A_ (W)w, ++asynccnt); |
4626 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5135 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4627 | asyncs [asynccnt - 1] = w; |
5136 | asyncs [asynccnt - 1] = w; |
4628 | |
5137 | |
4629 | EV_FREQUENT_CHECK; |
5138 | EV_FREQUENT_CHECK; |
4630 | } |
5139 | } |
4631 | |
5140 | |
4632 | void |
5141 | void |
4633 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
5142 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4634 | { |
5143 | { |
4635 | clear_pending (EV_A_ (W)w); |
5144 | clear_pending (EV_A_ (W)w); |
4636 | if (expect_false (!ev_is_active (w))) |
5145 | if (ecb_expect_false (!ev_is_active (w))) |
4637 | return; |
5146 | return; |
4638 | |
5147 | |
4639 | EV_FREQUENT_CHECK; |
5148 | EV_FREQUENT_CHECK; |
4640 | |
5149 | |
4641 | { |
5150 | { |
… | |
… | |
4649 | |
5158 | |
4650 | EV_FREQUENT_CHECK; |
5159 | EV_FREQUENT_CHECK; |
4651 | } |
5160 | } |
4652 | |
5161 | |
4653 | void |
5162 | void |
4654 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5163 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4655 | { |
5164 | { |
4656 | w->sent = 1; |
5165 | w->sent = 1; |
4657 | evpipe_write (EV_A_ &async_pending); |
5166 | evpipe_write (EV_A_ &async_pending); |
4658 | } |
5167 | } |
4659 | #endif |
5168 | #endif |
… | |
… | |
4696 | |
5205 | |
4697 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5206 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4698 | } |
5207 | } |
4699 | |
5208 | |
4700 | void |
5209 | void |
4701 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5210 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4702 | { |
5211 | { |
4703 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5212 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4704 | |
|
|
4705 | if (expect_false (!once)) |
|
|
4706 | { |
|
|
4707 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4708 | return; |
|
|
4709 | } |
|
|
4710 | |
5213 | |
4711 | once->cb = cb; |
5214 | once->cb = cb; |
4712 | once->arg = arg; |
5215 | once->arg = arg; |
4713 | |
5216 | |
4714 | ev_init (&once->io, once_cb_io); |
5217 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4727 | } |
5230 | } |
4728 | |
5231 | |
4729 | /*****************************************************************************/ |
5232 | /*****************************************************************************/ |
4730 | |
5233 | |
4731 | #if EV_WALK_ENABLE |
5234 | #if EV_WALK_ENABLE |
4732 | void ecb_cold |
5235 | ecb_cold |
|
|
5236 | void |
4733 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5237 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4734 | { |
5238 | { |
4735 | int i, j; |
5239 | int i, j; |
4736 | ev_watcher_list *wl, *wn; |
5240 | ev_watcher_list *wl, *wn; |
4737 | |
5241 | |
4738 | if (types & (EV_IO | EV_EMBED)) |
5242 | if (types & (EV_IO | EV_EMBED)) |