1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
|
|
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 | |
|
|
120 | # if HAVE_LINUX_AIO_ABI_H |
|
|
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 |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
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|
127 | # endif |
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|
128 | |
|
|
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 |
|
|
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
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|
135 | # define EV_USE_IOURING 0 |
|
|
136 | # endif |
|
|
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 |
|
|
184 | |
|
|
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 | |
|
|
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, |
|
|
216 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
217 | * ordered to have a vacuum, or they do anything for money. |
|
|
218 | * This might help. Or not. |
|
|
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 | |
|
|
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 | |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 | |
|
|
452 | #if __linux && EV_USE_IOURING |
|
|
453 | # include <linux/version.h> |
|
|
454 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
455 | # undef EV_USE_IOURING |
|
|
456 | # define EV_USE_IOURING 0 |
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|
457 | # endif |
|
|
458 | #endif |
|
|
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 |
|
|
465 | #endif |
|
|
466 | |
|
|
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 |
|
|
475 | #endif |
|
|
476 | |
|
|
477 | #if EV_USE_IOURING |
|
|
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 |
|
|
487 | # undef EV_USE_IOURING |
|
|
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 | |
|
|
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 | |
|
|
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 (©) 2009-2014 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: |
… | |
… | |
523 | |
617 | |
524 | #ifndef ECB_H |
618 | #ifndef ECB_H |
525 | #define ECB_H |
619 | #define ECB_H |
526 | |
620 | |
527 | /* 16 bits major, 16 bits minor */ |
621 | /* 16 bits major, 16 bits minor */ |
528 | #define ECB_VERSION 0x00010003 |
622 | #define ECB_VERSION 0x00010006 |
529 | |
623 | |
530 | #ifdef _WIN32 |
624 | #ifdef _WIN32 |
531 | typedef signed char int8_t; |
625 | typedef signed char int8_t; |
532 | typedef unsigned char uint8_t; |
626 | typedef unsigned char uint8_t; |
533 | typedef signed short int16_t; |
627 | typedef signed short int16_t; |
… | |
… | |
550 | typedef uint32_t uintptr_t; |
644 | typedef uint32_t uintptr_t; |
551 | typedef int32_t intptr_t; |
645 | typedef int32_t intptr_t; |
552 | #endif |
646 | #endif |
553 | #else |
647 | #else |
554 | #include <inttypes.h> |
648 | #include <inttypes.h> |
555 | #if UINTMAX_MAX > 0xffffffffU |
649 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
556 | #define ECB_PTRSIZE 8 |
650 | #define ECB_PTRSIZE 8 |
557 | #else |
651 | #else |
558 | #define ECB_PTRSIZE 4 |
652 | #define ECB_PTRSIZE 4 |
559 | #endif |
653 | #endif |
560 | #endif |
654 | #endif |
561 | |
655 | |
|
|
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 | |
562 | /* work around x32 idiocy by defining proper macros */ |
659 | /* work around x32 idiocy by defining proper macros */ |
563 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
660 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
564 | #if _ILP32 |
661 | #if _ILP32 |
565 | #define ECB_AMD64_X32 1 |
662 | #define ECB_AMD64_X32 1 |
566 | #else |
663 | #else |
567 | #define ECB_AMD64 1 |
664 | #define ECB_AMD64 1 |
568 | #endif |
665 | #endif |
… | |
… | |
573 | * causing enormous grief in return for some better fake benchmark numbers. |
670 | * causing enormous grief in return for some better fake benchmark numbers. |
574 | * or so. |
671 | * or so. |
575 | * 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 |
576 | * 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. |
577 | */ |
674 | */ |
578 | #ifndef ECB_GCC_VERSION |
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|
579 | #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__ |
580 | #define ECB_GCC_VERSION(major,minor) 0 |
676 | #define ECB_GCC_VERSION(major,minor) 0 |
581 | #else |
677 | #else |
582 | #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))) |
583 | #endif |
679 | #endif |
|
|
680 | |
|
|
681 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
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|
682 | |
|
|
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 |
584 | #endif |
693 | #endif |
585 | |
694 | |
586 | #define ECB_CPP (__cplusplus+0) |
695 | #define ECB_CPP (__cplusplus+0) |
587 | #define ECB_CPP11 (__cplusplus >= 201103L) |
696 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
697 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
698 | #define ECB_CPP17 (__cplusplus >= 201703L) |
588 | |
699 | |
589 | #if ECB_CPP |
700 | #if ECB_CPP |
590 | #define ECB_C 0 |
701 | #define ECB_C 0 |
591 | #define ECB_STDC_VERSION 0 |
702 | #define ECB_STDC_VERSION 0 |
592 | #else |
703 | #else |
… | |
… | |
594 | #define ECB_STDC_VERSION __STDC_VERSION__ |
705 | #define ECB_STDC_VERSION __STDC_VERSION__ |
595 | #endif |
706 | #endif |
596 | |
707 | |
597 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
708 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
598 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
709 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
710 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
599 | |
711 | |
600 | #if ECB_CPP |
712 | #if ECB_CPP |
601 | #define ECB_EXTERN_C extern "C" |
713 | #define ECB_EXTERN_C extern "C" |
602 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
714 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
603 | #define ECB_EXTERN_C_END } |
715 | #define ECB_EXTERN_C_END } |
… | |
… | |
618 | |
730 | |
619 | #if ECB_NO_SMP |
731 | #if ECB_NO_SMP |
620 | #define ECB_MEMORY_FENCE do { } while (0) |
732 | #define ECB_MEMORY_FENCE do { } while (0) |
621 | #endif |
733 | #endif |
622 | |
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 | |
623 | #ifndef ECB_MEMORY_FENCE |
744 | #ifndef ECB_MEMORY_FENCE |
624 | #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") |
625 | #if __i386 || __i386__ |
747 | #if __i386 || __i386__ |
626 | #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") |
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
749 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
750 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
629 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
751 | #elif ECB_GCC_AMD64 |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
631 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
753 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
632 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
754 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
633 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
755 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
634 | #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 */ |
635 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
764 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
636 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
765 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
766 | || defined __ARM_ARCH_6T2__ |
637 | #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") |
638 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
768 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
639 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
769 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
770 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
641 | #elif __aarch64__ |
771 | #elif __aarch64__ |
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
772 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
643 | #elif (__sparc || __sparc__) && !__sparcv8 |
773 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
644 | #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") |
645 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
775 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
646 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
776 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
647 | #elif defined __s390__ || defined __s390x__ |
777 | #elif defined __s390__ || defined __s390x__ |
648 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
778 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
671 | #if ECB_GCC_VERSION(4,7) |
801 | #if ECB_GCC_VERSION(4,7) |
672 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
802 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
673 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
803 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
674 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
804 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
675 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
805 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
806 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
676 | |
807 | |
677 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
808 | #elif ECB_CLANG_EXTENSION(c_atomic) |
678 | * without risking compile time errors with other compilers. We *could* |
|
|
679 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
680 | * around this shit time and again. |
|
|
681 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
682 | * // see comment below (stdatomic.h) about the C11 memory model. |
809 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
683 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
810 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
684 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
811 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
685 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
812 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
686 | */ |
813 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
687 | |
814 | |
688 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
815 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
689 | #define ECB_MEMORY_FENCE __sync_synchronize () |
816 | #define ECB_MEMORY_FENCE __sync_synchronize () |
690 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
817 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
691 | /* 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... */ |
… | |
… | |
701 | #elif defined _WIN32 |
828 | #elif defined _WIN32 |
702 | #include <WinNT.h> |
829 | #include <WinNT.h> |
703 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
830 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
704 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
831 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
705 | #include <mbarrier.h> |
832 | #include <mbarrier.h> |
706 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
833 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
707 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
834 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
708 | #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 () |
709 | #elif __xlC__ |
837 | #elif __xlC__ |
710 | #define ECB_MEMORY_FENCE __sync () |
838 | #define ECB_MEMORY_FENCE __sync () |
711 | #endif |
839 | #endif |
712 | #endif |
840 | #endif |
713 | |
841 | |
714 | #ifndef ECB_MEMORY_FENCE |
842 | #ifndef ECB_MEMORY_FENCE |
715 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
843 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
716 | /* 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, */ |
717 | /* not just C11 atomics and atomic accesses */ |
845 | /* not just C11 atomics and atomic accesses */ |
718 | #include <stdatomic.h> |
846 | #include <stdatomic.h> |
719 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
720 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
721 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
722 | /* for most usages, or gcc and clang have a bug */ |
|
|
723 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
724 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
725 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
726 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
727 | #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) |
728 | #endif |
850 | #endif |
729 | #endif |
851 | #endif |
730 | |
852 | |
731 | #ifndef ECB_MEMORY_FENCE |
853 | #ifndef ECB_MEMORY_FENCE |
732 | #if !ECB_AVOID_PTHREADS |
854 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
752 | |
874 | |
753 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
875 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
754 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
876 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
755 | #endif |
877 | #endif |
756 | |
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 | |
757 | /*****************************************************************************/ |
883 | /*****************************************************************************/ |
758 | |
884 | |
759 | #if __cplusplus |
885 | #if ECB_CPP |
760 | #define ecb_inline static inline |
886 | #define ecb_inline static inline |
761 | #elif ECB_GCC_VERSION(2,5) |
887 | #elif ECB_GCC_VERSION(2,5) |
762 | #define ecb_inline static __inline__ |
888 | #define ecb_inline static __inline__ |
763 | #elif ECB_C99 |
889 | #elif ECB_C99 |
764 | #define ecb_inline static inline |
890 | #define ecb_inline static inline |
… | |
… | |
778 | |
904 | |
779 | #define ECB_CONCAT_(a, b) a ## b |
905 | #define ECB_CONCAT_(a, b) a ## b |
780 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
906 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
781 | #define ECB_STRINGIFY_(a) # a |
907 | #define ECB_STRINGIFY_(a) # a |
782 | #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)) |
783 | |
910 | |
784 | #define ecb_function_ ecb_inline |
911 | #define ecb_function_ ecb_inline |
785 | |
912 | |
786 | #if ECB_GCC_VERSION(3,1) |
913 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
787 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
914 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
788 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
789 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
790 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
791 | #else |
915 | #else |
792 | #define ecb_attribute(attrlist) |
916 | #define ecb_attribute(attrlist) |
|
|
917 | #endif |
793 | |
918 | |
|
|
919 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
920 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
921 | #else |
794 | /* possible C11 impl for integral types |
922 | /* possible C11 impl for integral types |
795 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
923 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
796 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
924 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
797 | |
925 | |
798 | #define ecb_is_constant(expr) 0 |
926 | #define ecb_is_constant(expr) 0 |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
930 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
931 | #else |
799 | #define ecb_expect(expr,value) (expr) |
932 | #define ecb_expect(expr,value) (expr) |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
936 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
937 | #else |
800 | #define ecb_prefetch(addr,rw,locality) |
938 | #define ecb_prefetch(addr,rw,locality) |
801 | #endif |
939 | #endif |
802 | |
940 | |
803 | /* no emulation for ecb_decltype */ |
941 | /* no emulation for ecb_decltype */ |
804 | #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; }; |
805 | #define ecb_decltype(x) __decltype(x) |
945 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
806 | #elif ECB_GCC_VERSION(3,0) |
946 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
807 | #define ecb_decltype(x) __typeof(x) |
947 | #define ecb_decltype(x) __typeof__ (x) |
808 | #endif |
948 | #endif |
809 | |
949 | |
810 | #if _MSC_VER >= 1300 |
950 | #if _MSC_VER >= 1300 |
811 | #define ecb_deprecated __declspec(deprecated) |
951 | #define ecb_deprecated __declspec (deprecated) |
812 | #else |
952 | #else |
813 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
953 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
814 | #endif |
954 | #endif |
815 | |
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 |
816 | #define ecb_noinline ecb_attribute ((__noinline__)) |
967 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
968 | #endif |
|
|
969 | |
817 | #define ecb_unused ecb_attribute ((__unused__)) |
970 | #define ecb_unused ecb_attribute ((__unused__)) |
818 | #define ecb_const ecb_attribute ((__const__)) |
971 | #define ecb_const ecb_attribute ((__const__)) |
819 | #define ecb_pure ecb_attribute ((__pure__)) |
972 | #define ecb_pure ecb_attribute ((__pure__)) |
820 | |
973 | |
821 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
974 | #if ECB_C11 || __IBMC_NORETURN |
822 | #if ECB_C11 |
975 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
823 | #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) |
824 | #else |
982 | #else |
825 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
983 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
826 | #endif |
984 | #endif |
827 | |
985 | |
828 | #if ECB_GCC_VERSION(4,3) |
986 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
843 | /* for compatibility to the rest of the world */ |
1001 | /* for compatibility to the rest of the world */ |
844 | #define ecb_likely(expr) ecb_expect_true (expr) |
1002 | #define ecb_likely(expr) ecb_expect_true (expr) |
845 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
1003 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
846 | |
1004 | |
847 | /* count trailing zero bits and count # of one bits */ |
1005 | /* count trailing zero bits and count # of one bits */ |
848 | #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)) |
849 | /* 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 */ |
850 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
1011 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
851 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
1012 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
852 | #define ecb_ctz32(x) __builtin_ctz (x) |
1013 | #define ecb_ctz32(x) __builtin_ctz (x) |
853 | #define ecb_ctz64(x) __builtin_ctzll (x) |
1014 | #define ecb_ctz64(x) __builtin_ctzll (x) |
854 | #define ecb_popcount32(x) __builtin_popcount (x) |
1015 | #define ecb_popcount32(x) __builtin_popcount (x) |
855 | /* no popcountll */ |
1016 | /* no popcountll */ |
856 | #else |
1017 | #else |
857 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
1018 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
858 | ecb_function_ int |
1019 | ecb_function_ ecb_const int |
859 | ecb_ctz32 (uint32_t x) |
1020 | ecb_ctz32 (uint32_t x) |
860 | { |
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 |
861 | int r = 0; |
1027 | int r = 0; |
862 | |
1028 | |
863 | x &= ~x + 1; /* this isolates the lowest bit */ |
1029 | x &= ~x + 1; /* this isolates the lowest bit */ |
864 | |
1030 | |
865 | #if ECB_branchless_on_i386 |
1031 | #if ECB_branchless_on_i386 |
… | |
… | |
875 | if (x & 0xff00ff00) r += 8; |
1041 | if (x & 0xff00ff00) r += 8; |
876 | if (x & 0xffff0000) r += 16; |
1042 | if (x & 0xffff0000) r += 16; |
877 | #endif |
1043 | #endif |
878 | |
1044 | |
879 | return r; |
1045 | return r; |
|
|
1046 | #endif |
880 | } |
1047 | } |
881 | |
1048 | |
882 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1049 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
883 | ecb_function_ int |
1050 | ecb_function_ ecb_const int |
884 | ecb_ctz64 (uint64_t x) |
1051 | ecb_ctz64 (uint64_t x) |
885 | { |
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 |
886 | int shift = x & 0xffffffffU ? 0 : 32; |
1058 | int shift = x & 0xffffffff ? 0 : 32; |
887 | return ecb_ctz32 (x >> shift) + shift; |
1059 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1060 | #endif |
888 | } |
1061 | } |
889 | |
1062 | |
890 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1063 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
891 | ecb_function_ int |
1064 | ecb_function_ ecb_const int |
892 | ecb_popcount32 (uint32_t x) |
1065 | ecb_popcount32 (uint32_t x) |
893 | { |
1066 | { |
894 | x -= (x >> 1) & 0x55555555; |
1067 | x -= (x >> 1) & 0x55555555; |
895 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1068 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
896 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1069 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
897 | x *= 0x01010101; |
1070 | x *= 0x01010101; |
898 | |
1071 | |
899 | return x >> 24; |
1072 | return x >> 24; |
900 | } |
1073 | } |
901 | |
1074 | |
902 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1075 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
903 | ecb_function_ int ecb_ld32 (uint32_t x) |
1076 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
904 | { |
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 |
905 | int r = 0; |
1083 | int r = 0; |
906 | |
1084 | |
907 | if (x >> 16) { x >>= 16; r += 16; } |
1085 | if (x >> 16) { x >>= 16; r += 16; } |
908 | if (x >> 8) { x >>= 8; r += 8; } |
1086 | if (x >> 8) { x >>= 8; r += 8; } |
909 | if (x >> 4) { x >>= 4; r += 4; } |
1087 | if (x >> 4) { x >>= 4; r += 4; } |
910 | if (x >> 2) { x >>= 2; r += 2; } |
1088 | if (x >> 2) { x >>= 2; r += 2; } |
911 | if (x >> 1) { r += 1; } |
1089 | if (x >> 1) { r += 1; } |
912 | |
1090 | |
913 | return r; |
1091 | return r; |
|
|
1092 | #endif |
914 | } |
1093 | } |
915 | |
1094 | |
916 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1095 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
917 | ecb_function_ int ecb_ld64 (uint64_t x) |
1096 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
918 | { |
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 |
919 | int r = 0; |
1103 | int r = 0; |
920 | |
1104 | |
921 | if (x >> 32) { x >>= 32; r += 32; } |
1105 | if (x >> 32) { x >>= 32; r += 32; } |
922 | |
1106 | |
923 | return r + ecb_ld32 (x); |
1107 | return r + ecb_ld32 (x); |
|
|
1108 | #endif |
924 | } |
1109 | } |
925 | #endif |
1110 | #endif |
926 | |
1111 | |
927 | 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); |
928 | 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)); } |
929 | 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); |
930 | 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)); } |
931 | |
1116 | |
932 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1117 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
933 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1118 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
934 | { |
1119 | { |
935 | return ( (x * 0x0802U & 0x22110U) |
1120 | return ( (x * 0x0802U & 0x22110U) |
936 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1121 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
937 | } |
1122 | } |
938 | |
1123 | |
939 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1124 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
940 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1125 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
941 | { |
1126 | { |
942 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1127 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
943 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1128 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
944 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1129 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
945 | x = ( x >> 8 ) | ( x << 8); |
1130 | x = ( x >> 8 ) | ( x << 8); |
946 | |
1131 | |
947 | return x; |
1132 | return x; |
948 | } |
1133 | } |
949 | |
1134 | |
950 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1135 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
951 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1136 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
952 | { |
1137 | { |
953 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1138 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
954 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1139 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
955 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1140 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
956 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1141 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
959 | return x; |
1144 | return x; |
960 | } |
1145 | } |
961 | |
1146 | |
962 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1147 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
963 | /* so for this version we are lazy */ |
1148 | /* so for this version we are lazy */ |
964 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1149 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
965 | ecb_function_ int |
1150 | ecb_function_ ecb_const int |
966 | ecb_popcount64 (uint64_t x) |
1151 | ecb_popcount64 (uint64_t x) |
967 | { |
1152 | { |
968 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1153 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
969 | } |
1154 | } |
970 | |
1155 | |
971 | 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); |
972 | 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); |
973 | 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); |
974 | 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); |
975 | 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); |
976 | 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); |
977 | 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); |
978 | 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); |
979 | |
1164 | |
980 | 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); } |
981 | 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); } |
982 | 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); } |
983 | 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); } |
984 | 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); } |
985 | 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); } |
986 | 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); } |
987 | 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); } |
988 | |
1173 | |
989 | #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 |
990 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1178 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1179 | #endif |
991 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1180 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
992 | #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))) |
993 | #else |
1187 | #else |
994 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1188 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
995 | ecb_function_ uint16_t |
1189 | ecb_function_ ecb_const uint16_t |
996 | ecb_bswap16 (uint16_t x) |
1190 | ecb_bswap16 (uint16_t x) |
997 | { |
1191 | { |
998 | return ecb_rotl16 (x, 8); |
1192 | return ecb_rotl16 (x, 8); |
999 | } |
1193 | } |
1000 | |
1194 | |
1001 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1195 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
1002 | ecb_function_ uint32_t |
1196 | ecb_function_ ecb_const uint32_t |
1003 | ecb_bswap32 (uint32_t x) |
1197 | ecb_bswap32 (uint32_t x) |
1004 | { |
1198 | { |
1005 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1199 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1006 | } |
1200 | } |
1007 | |
1201 | |
1008 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1202 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
1009 | ecb_function_ uint64_t |
1203 | ecb_function_ ecb_const uint64_t |
1010 | ecb_bswap64 (uint64_t x) |
1204 | ecb_bswap64 (uint64_t x) |
1011 | { |
1205 | { |
1012 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1206 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1013 | } |
1207 | } |
1014 | #endif |
1208 | #endif |
1015 | |
1209 | |
1016 | #if ECB_GCC_VERSION(4,5) |
1210 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
1017 | #define ecb_unreachable() __builtin_unreachable () |
1211 | #define ecb_unreachable() __builtin_unreachable () |
1018 | #else |
1212 | #else |
1019 | /* 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 :/ */ |
1020 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1214 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
1021 | ecb_inline void ecb_unreachable (void) { } |
1215 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
1022 | #endif |
1216 | #endif |
1023 | |
1217 | |
1024 | /* try to tell the compiler that some condition is definitely true */ |
1218 | /* try to tell the compiler that some condition is definitely true */ |
1025 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1219 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1026 | |
1220 | |
1027 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1221 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
1028 | ecb_inline unsigned char |
1222 | ecb_inline ecb_const uint32_t |
1029 | ecb_byteorder_helper (void) |
1223 | ecb_byteorder_helper (void) |
1030 | { |
1224 | { |
1031 | /* the union code still generates code under pressure in gcc, */ |
1225 | /* the union code still generates code under pressure in gcc, */ |
1032 | /* but less than using pointers, and always seems to */ |
1226 | /* but less than using pointers, and always seems to */ |
1033 | /* successfully return a constant. */ |
1227 | /* successfully return a constant. */ |
1034 | /* the reason why we have this horrible preprocessor mess */ |
1228 | /* the reason why we have this horrible preprocessor mess */ |
1035 | /* 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 */ |
1036 | /* or when using a recent enough gcc version (>= 4.6) */ |
1230 | /* or when using a recent enough gcc version (>= 4.6) */ |
1037 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1038 | return 0x44; |
|
|
1039 | #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 |
1040 | return 0x44; |
1234 | return 0x44332211; |
1041 | #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 |
1042 | return 0x11; |
1238 | return 0x11223344; |
1043 | #else |
1239 | #else |
1044 | union |
1240 | union |
1045 | { |
1241 | { |
|
|
1242 | uint8_t c[4]; |
1046 | uint32_t i; |
1243 | uint32_t u; |
1047 | uint8_t c; |
|
|
1048 | } u = { 0x11223344 }; |
1244 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
1049 | return u.c; |
1245 | return u.u; |
1050 | #endif |
1246 | #endif |
1051 | } |
1247 | } |
1052 | |
1248 | |
1053 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1249 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1054 | 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; } |
1055 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1251 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1056 | 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; } |
1057 | |
1253 | |
1058 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1254 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1059 | #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)) |
1060 | #else |
1256 | #else |
1061 | #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))) |
1062 | #endif |
1258 | #endif |
1063 | |
1259 | |
1064 | #if __cplusplus |
1260 | #if ECB_CPP |
1065 | template<typename T> |
1261 | template<typename T> |
1066 | static inline T ecb_div_rd (T val, T div) |
1262 | static inline T ecb_div_rd (T val, T div) |
1067 | { |
1263 | { |
1068 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1264 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1069 | } |
1265 | } |
… | |
… | |
1086 | } |
1282 | } |
1087 | #else |
1283 | #else |
1088 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1284 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1089 | #endif |
1285 | #endif |
1090 | |
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 | |
1091 | /*******************************************************************************/ |
1383 | /*******************************************************************************/ |
1092 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1384 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1093 | |
1385 | |
1094 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1386 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1095 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1387 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1096 | #if 0 \ |
1388 | #if 0 \ |
1097 | || __i386 || __i386__ \ |
1389 | || __i386 || __i386__ \ |
1098 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1390 | || ECB_GCC_AMD64 \ |
1099 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1391 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1100 | || defined __s390__ || defined __s390x__ \ |
1392 | || defined __s390__ || defined __s390x__ \ |
1101 | || defined __mips__ \ |
1393 | || defined __mips__ \ |
1102 | || defined __alpha__ \ |
1394 | || defined __alpha__ \ |
1103 | || defined __hppa__ \ |
1395 | || defined __hppa__ \ |
1104 | || defined __ia64__ \ |
1396 | || defined __ia64__ \ |
1105 | || defined __m68k__ \ |
1397 | || defined __m68k__ \ |
1106 | || defined __m88k__ \ |
1398 | || defined __m88k__ \ |
1107 | || defined __sh__ \ |
1399 | || defined __sh__ \ |
1108 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
1400 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
1109 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1401 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1110 | || defined __aarch64__ |
1402 | || defined __aarch64__ |
1111 | #define ECB_STDFP 1 |
1403 | #define ECB_STDFP 1 |
1112 | #include <string.h> /* for memcpy */ |
1404 | #include <string.h> /* for memcpy */ |
1113 | #else |
1405 | #else |
… | |
… | |
1129 | #define ECB_NAN NAN |
1421 | #define ECB_NAN NAN |
1130 | #else |
1422 | #else |
1131 | #define ECB_NAN ECB_INFINITY |
1423 | #define ECB_NAN ECB_INFINITY |
1132 | #endif |
1424 | #endif |
1133 | |
1425 | |
1134 | /* converts an ieee half/binary16 to a float */ |
1426 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
1135 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1427 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
1136 | ecb_function_ float |
1428 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
1137 | ecb_binary16_to_float (uint16_t x) |
1429 | #else |
1138 | { |
1430 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
1139 | int e = (x >> 10) & 0x1f; |
1431 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
1140 | int m = x & 0x3ff; |
1432 | #endif |
1141 | float r; |
|
|
1142 | |
|
|
1143 | if (!e ) r = ldexpf (m , -24); |
|
|
1144 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1145 | else if (m ) r = ECB_NAN; |
|
|
1146 | else r = ECB_INFINITY; |
|
|
1147 | |
|
|
1148 | return x & 0x8000 ? -r : r; |
|
|
1149 | } |
|
|
1150 | |
1433 | |
1151 | /* convert a float to ieee single/binary32 */ |
1434 | /* convert a float to ieee single/binary32 */ |
1152 | 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); |
1153 | ecb_function_ uint32_t |
1436 | ecb_function_ ecb_const uint32_t |
1154 | ecb_float_to_binary32 (float x) |
1437 | ecb_float_to_binary32 (float x) |
1155 | { |
1438 | { |
1156 | uint32_t r; |
1439 | uint32_t r; |
1157 | |
1440 | |
1158 | #if ECB_STDFP |
1441 | #if ECB_STDFP |
… | |
… | |
1165 | if (x == 0e0f ) return 0x00000000U; |
1448 | if (x == 0e0f ) return 0x00000000U; |
1166 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1449 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1167 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1450 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1168 | if (x != x ) return 0x7fbfffffU; |
1451 | if (x != x ) return 0x7fbfffffU; |
1169 | |
1452 | |
1170 | m = frexpf (x, &e) * 0x1000000U; |
1453 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1171 | |
1454 | |
1172 | r = m & 0x80000000U; |
1455 | r = m & 0x80000000U; |
1173 | |
1456 | |
1174 | if (r) |
1457 | if (r) |
1175 | m = -m; |
1458 | m = -m; |
… | |
… | |
1187 | |
1470 | |
1188 | return r; |
1471 | return r; |
1189 | } |
1472 | } |
1190 | |
1473 | |
1191 | /* converts an ieee single/binary32 to a float */ |
1474 | /* converts an ieee single/binary32 to a float */ |
1192 | 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); |
1193 | ecb_function_ float |
1476 | ecb_function_ ecb_const float |
1194 | ecb_binary32_to_float (uint32_t x) |
1477 | ecb_binary32_to_float (uint32_t x) |
1195 | { |
1478 | { |
1196 | float r; |
1479 | float r; |
1197 | |
1480 | |
1198 | #if ECB_STDFP |
1481 | #if ECB_STDFP |
… | |
… | |
1208 | x |= 0x800000U; |
1491 | x |= 0x800000U; |
1209 | else |
1492 | else |
1210 | e = 1; |
1493 | e = 1; |
1211 | |
1494 | |
1212 | /* 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 */ |
1213 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1496 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1214 | |
1497 | |
1215 | r = neg ? -r : r; |
1498 | r = neg ? -r : r; |
1216 | #endif |
1499 | #endif |
1217 | |
1500 | |
1218 | return r; |
1501 | return r; |
1219 | } |
1502 | } |
1220 | |
1503 | |
1221 | /* convert a double to ieee double/binary64 */ |
1504 | /* convert a double to ieee double/binary64 */ |
1222 | 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); |
1223 | ecb_function_ uint64_t |
1506 | ecb_function_ ecb_const uint64_t |
1224 | ecb_double_to_binary64 (double x) |
1507 | ecb_double_to_binary64 (double x) |
1225 | { |
1508 | { |
1226 | uint64_t r; |
1509 | uint64_t r; |
1227 | |
1510 | |
1228 | #if ECB_STDFP |
1511 | #if ECB_STDFP |
… | |
… | |
1257 | |
1540 | |
1258 | return r; |
1541 | return r; |
1259 | } |
1542 | } |
1260 | |
1543 | |
1261 | /* converts an ieee double/binary64 to a double */ |
1544 | /* converts an ieee double/binary64 to a double */ |
1262 | 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); |
1263 | ecb_function_ double |
1546 | ecb_function_ ecb_const double |
1264 | ecb_binary64_to_double (uint64_t x) |
1547 | ecb_binary64_to_double (uint64_t x) |
1265 | { |
1548 | { |
1266 | double r; |
1549 | double r; |
1267 | |
1550 | |
1268 | #if ECB_STDFP |
1551 | #if ECB_STDFP |
… | |
… | |
1286 | #endif |
1569 | #endif |
1287 | |
1570 | |
1288 | return r; |
1571 | return r; |
1289 | } |
1572 | } |
1290 | |
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 | |
1291 | #endif |
1590 | #endif |
1292 | |
1591 | |
1293 | #endif |
1592 | #endif |
1294 | |
1593 | |
1295 | /* ECB.H END */ |
1594 | /* ECB.H END */ |
1296 | |
1595 | |
1297 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1596 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1298 | /* 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 |
1299 | * 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 |
1300 | * 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 |
1301 | * libev, in which cases the memory fences become nops. |
1600 | * libev, in which cases the memory fences become nops. |
1302 | * alternatively, you can remove this #error and link against libpthread, |
1601 | * alternatively, you can remove this #error and link against libpthread, |
1303 | * which will then provide the memory fences. |
1602 | * which will then provide the memory fences. |
1304 | */ |
1603 | */ |
1305 | # error "memory fences not defined for your architecture, please report" |
1604 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1309 | # define ECB_MEMORY_FENCE do { } while (0) |
1608 | # define ECB_MEMORY_FENCE do { } while (0) |
1310 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1609 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1311 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1610 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1312 | #endif |
1611 | #endif |
1313 | |
1612 | |
1314 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1315 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1316 | #define noinline ecb_noinline |
|
|
1317 | |
|
|
1318 | #define inline_size ecb_inline |
1613 | #define inline_size ecb_inline |
1319 | |
1614 | |
1320 | #if EV_FEATURE_CODE |
1615 | #if EV_FEATURE_CODE |
1321 | # define inline_speed ecb_inline |
1616 | # define inline_speed ecb_inline |
1322 | #else |
1617 | #else |
1323 | # define inline_speed static noinline |
1618 | # define inline_speed ecb_noinline static |
1324 | #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 | /*****************************************************************************/ |
1325 | |
1686 | |
1326 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1687 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1327 | |
1688 | |
1328 | #if EV_MINPRI == EV_MAXPRI |
1689 | #if EV_MINPRI == EV_MAXPRI |
1329 | # define ABSPRI(w) (((W)w), 0) |
1690 | # define ABSPRI(w) (((W)w), 0) |
1330 | #else |
1691 | #else |
1331 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1692 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1332 | #endif |
1693 | #endif |
1333 | |
1694 | |
1334 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1695 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1335 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1336 | |
1696 | |
1337 | typedef ev_watcher *W; |
1697 | typedef ev_watcher *W; |
1338 | typedef ev_watcher_list *WL; |
1698 | typedef ev_watcher_list *WL; |
1339 | typedef ev_watcher_time *WT; |
1699 | typedef ev_watcher_time *WT; |
1340 | |
1700 | |
… | |
… | |
1365 | # include "ev_win32.c" |
1725 | # include "ev_win32.c" |
1366 | #endif |
1726 | #endif |
1367 | |
1727 | |
1368 | /*****************************************************************************/ |
1728 | /*****************************************************************************/ |
1369 | |
1729 | |
|
|
1730 | #if EV_USE_LINUXAIO |
|
|
1731 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1732 | #endif |
|
|
1733 | |
1370 | /* define a suitable floor function (only used by periodics atm) */ |
1734 | /* define a suitable floor function (only used by periodics atm) */ |
1371 | |
1735 | |
1372 | #if EV_USE_FLOOR |
1736 | #if EV_USE_FLOOR |
1373 | # include <math.h> |
1737 | # include <math.h> |
1374 | # define ev_floor(v) floor (v) |
1738 | # define ev_floor(v) floor (v) |
1375 | #else |
1739 | #else |
1376 | |
1740 | |
1377 | #include <float.h> |
1741 | #include <float.h> |
1378 | |
1742 | |
1379 | /* 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 |
1380 | static ev_tstamp noinline |
1745 | static ev_tstamp |
1381 | ev_floor (ev_tstamp v) |
1746 | ev_floor (ev_tstamp v) |
1382 | { |
1747 | { |
1383 | /* the choice of shift factor is not terribly important */ |
1748 | /* the choice of shift factor is not terribly important */ |
1384 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1749 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1385 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1750 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1386 | #else |
1751 | #else |
1387 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1752 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1388 | #endif |
1753 | #endif |
1389 | |
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 | |
1390 | /* argument too large for an unsigned long? */ |
1763 | /* argument too large for an unsigned long? then reduce it */ |
1391 | if (expect_false (v >= shift)) |
1764 | if (ecb_expect_false (v >= shift)) |
1392 | { |
1765 | { |
1393 | ev_tstamp f; |
1766 | ev_tstamp f; |
1394 | |
1767 | |
1395 | if (v == v - 1.) |
1768 | if (v == v - 1.) |
1396 | return v; /* very large number */ |
1769 | return v; /* very large numbers are assumed to be integer */ |
1397 | |
1770 | |
1398 | f = shift * ev_floor (v * (1. / shift)); |
1771 | f = shift * ev_floor (v * (1. / shift)); |
1399 | return f + ev_floor (v - f); |
1772 | return f + ev_floor (v - f); |
1400 | } |
1773 | } |
1401 | |
1774 | |
1402 | /* special treatment for negative args? */ |
|
|
1403 | if (expect_false (v < 0.)) |
|
|
1404 | { |
|
|
1405 | ev_tstamp f = -ev_floor (-v); |
|
|
1406 | |
|
|
1407 | return f - (f == v ? 0 : 1); |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | /* fits into an unsigned long */ |
1775 | /* fits into an unsigned long */ |
1411 | return (unsigned long)v; |
1776 | return (unsigned long)v; |
1412 | } |
1777 | } |
1413 | |
1778 | |
1414 | #endif |
1779 | #endif |
… | |
… | |
1417 | |
1782 | |
1418 | #ifdef __linux |
1783 | #ifdef __linux |
1419 | # include <sys/utsname.h> |
1784 | # include <sys/utsname.h> |
1420 | #endif |
1785 | #endif |
1421 | |
1786 | |
1422 | static unsigned int noinline ecb_cold |
1787 | ecb_noinline ecb_cold |
|
|
1788 | static unsigned int |
1423 | ev_linux_version (void) |
1789 | ev_linux_version (void) |
1424 | { |
1790 | { |
1425 | #ifdef __linux |
1791 | #ifdef __linux |
1426 | unsigned int v = 0; |
1792 | unsigned int v = 0; |
1427 | struct utsname buf; |
1793 | struct utsname buf; |
… | |
… | |
1456 | } |
1822 | } |
1457 | |
1823 | |
1458 | /*****************************************************************************/ |
1824 | /*****************************************************************************/ |
1459 | |
1825 | |
1460 | #if EV_AVOID_STDIO |
1826 | #if EV_AVOID_STDIO |
1461 | static void noinline ecb_cold |
1827 | ecb_noinline ecb_cold |
|
|
1828 | static void |
1462 | ev_printerr (const char *msg) |
1829 | ev_printerr (const char *msg) |
1463 | { |
1830 | { |
1464 | write (STDERR_FILENO, msg, strlen (msg)); |
1831 | write (STDERR_FILENO, msg, strlen (msg)); |
1465 | } |
1832 | } |
1466 | #endif |
1833 | #endif |
1467 | |
1834 | |
1468 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1835 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1469 | |
1836 | |
1470 | void ecb_cold |
1837 | ecb_cold |
|
|
1838 | void |
1471 | 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 |
1472 | { |
1840 | { |
1473 | syserr_cb = cb; |
1841 | syserr_cb = cb; |
1474 | } |
1842 | } |
1475 | |
1843 | |
1476 | static void noinline ecb_cold |
1844 | ecb_noinline ecb_cold |
|
|
1845 | static void |
1477 | ev_syserr (const char *msg) |
1846 | ev_syserr (const char *msg) |
1478 | { |
1847 | { |
1479 | if (!msg) |
1848 | if (!msg) |
1480 | msg = "(libev) system error"; |
1849 | msg = "(libev) system error"; |
1481 | |
1850 | |
… | |
… | |
1494 | abort (); |
1863 | abort (); |
1495 | } |
1864 | } |
1496 | } |
1865 | } |
1497 | |
1866 | |
1498 | static void * |
1867 | static void * |
1499 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1868 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1500 | { |
1869 | { |
1501 | /* some systems, notably openbsd and darwin, fail to properly |
1870 | /* some systems, notably openbsd and darwin, fail to properly |
1502 | * 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 |
1503 | * the single unix specification, so work around them here. |
1872 | * the single unix specification, so work around them here. |
1504 | * recently, also (at least) fedora and debian started breaking it, |
1873 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1510 | |
1879 | |
1511 | free (ptr); |
1880 | free (ptr); |
1512 | return 0; |
1881 | return 0; |
1513 | } |
1882 | } |
1514 | |
1883 | |
1515 | 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; |
1516 | |
1885 | |
1517 | void ecb_cold |
1886 | ecb_cold |
|
|
1887 | void |
1518 | 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 |
1519 | { |
1889 | { |
1520 | alloc = cb; |
1890 | alloc = cb; |
1521 | } |
1891 | } |
1522 | |
1892 | |
1523 | inline_speed void * |
1893 | inline_speed void * |
… | |
… | |
1550 | typedef struct |
1920 | typedef struct |
1551 | { |
1921 | { |
1552 | WL head; |
1922 | WL head; |
1553 | unsigned char events; /* the events watched for */ |
1923 | unsigned char events; /* the events watched for */ |
1554 | 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) */ |
1555 | 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 */ |
1556 | unsigned char unused; |
1926 | unsigned char eflags; /* flags field for use by backends */ |
1557 | #if EV_USE_EPOLL |
1927 | #if EV_USE_EPOLL |
1558 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1928 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1559 | #endif |
1929 | #endif |
1560 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1930 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1561 | SOCKET handle; |
1931 | SOCKET handle; |
… | |
… | |
1615 | static struct ev_loop default_loop_struct; |
1985 | static struct ev_loop default_loop_struct; |
1616 | 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 */ |
1617 | |
1987 | |
1618 | #else |
1988 | #else |
1619 | |
1989 | |
1620 | 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 */ |
1621 | #define VAR(name,decl) static decl; |
1991 | #define VAR(name,decl) static decl; |
1622 | #include "ev_vars.h" |
1992 | #include "ev_vars.h" |
1623 | #undef VAR |
1993 | #undef VAR |
1624 | |
1994 | |
1625 | static int ev_default_loop_ptr; |
1995 | static int ev_default_loop_ptr; |
1626 | |
1996 | |
1627 | #endif |
1997 | #endif |
1628 | |
1998 | |
1629 | #if EV_FEATURE_API |
1999 | #if EV_FEATURE_API |
1630 | # 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) |
1631 | # 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) |
1632 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2002 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1633 | #else |
2003 | #else |
1634 | # define EV_RELEASE_CB (void)0 |
2004 | # define EV_RELEASE_CB (void)0 |
1635 | # define EV_ACQUIRE_CB (void)0 |
2005 | # define EV_ACQUIRE_CB (void)0 |
1636 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2006 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1640 | |
2010 | |
1641 | /*****************************************************************************/ |
2011 | /*****************************************************************************/ |
1642 | |
2012 | |
1643 | #ifndef EV_HAVE_EV_TIME |
2013 | #ifndef EV_HAVE_EV_TIME |
1644 | ev_tstamp |
2014 | ev_tstamp |
1645 | ev_time (void) EV_THROW |
2015 | ev_time (void) EV_NOEXCEPT |
1646 | { |
2016 | { |
1647 | #if EV_USE_REALTIME |
2017 | #if EV_USE_REALTIME |
1648 | if (expect_true (have_realtime)) |
2018 | if (ecb_expect_true (have_realtime)) |
1649 | { |
2019 | { |
1650 | struct timespec ts; |
2020 | struct timespec ts; |
1651 | clock_gettime (CLOCK_REALTIME, &ts); |
2021 | clock_gettime (CLOCK_REALTIME, &ts); |
1652 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2022 | return EV_TS_GET (ts); |
1653 | } |
2023 | } |
1654 | #endif |
2024 | #endif |
1655 | |
2025 | |
|
|
2026 | { |
1656 | struct timeval tv; |
2027 | struct timeval tv; |
1657 | gettimeofday (&tv, 0); |
2028 | gettimeofday (&tv, 0); |
1658 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2029 | return EV_TV_GET (tv); |
|
|
2030 | } |
1659 | } |
2031 | } |
1660 | #endif |
2032 | #endif |
1661 | |
2033 | |
1662 | inline_size ev_tstamp |
2034 | inline_size ev_tstamp |
1663 | get_clock (void) |
2035 | get_clock (void) |
1664 | { |
2036 | { |
1665 | #if EV_USE_MONOTONIC |
2037 | #if EV_USE_MONOTONIC |
1666 | if (expect_true (have_monotonic)) |
2038 | if (ecb_expect_true (have_monotonic)) |
1667 | { |
2039 | { |
1668 | struct timespec ts; |
2040 | struct timespec ts; |
1669 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2041 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1670 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2042 | return EV_TS_GET (ts); |
1671 | } |
2043 | } |
1672 | #endif |
2044 | #endif |
1673 | |
2045 | |
1674 | return ev_time (); |
2046 | return ev_time (); |
1675 | } |
2047 | } |
1676 | |
2048 | |
1677 | #if EV_MULTIPLICITY |
2049 | #if EV_MULTIPLICITY |
1678 | ev_tstamp |
2050 | ev_tstamp |
1679 | ev_now (EV_P) EV_THROW |
2051 | ev_now (EV_P) EV_NOEXCEPT |
1680 | { |
2052 | { |
1681 | return ev_rt_now; |
2053 | return ev_rt_now; |
1682 | } |
2054 | } |
1683 | #endif |
2055 | #endif |
1684 | |
2056 | |
1685 | void |
2057 | void |
1686 | ev_sleep (ev_tstamp delay) EV_THROW |
2058 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1687 | { |
2059 | { |
1688 | if (delay > 0.) |
2060 | if (delay > EV_TS_CONST (0.)) |
1689 | { |
2061 | { |
1690 | #if EV_USE_NANOSLEEP |
2062 | #if EV_USE_NANOSLEEP |
1691 | struct timespec ts; |
2063 | struct timespec ts; |
1692 | |
2064 | |
1693 | EV_TS_SET (ts, delay); |
2065 | EV_TS_SET (ts, delay); |
1694 | nanosleep (&ts, 0); |
2066 | nanosleep (&ts, 0); |
1695 | #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) */ |
1696 | Sleep ((unsigned long)(delay * 1e3)); |
2070 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1697 | #else |
2071 | #else |
1698 | struct timeval tv; |
2072 | struct timeval tv; |
1699 | |
2073 | |
1700 | /* 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 */ |
1701 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2075 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1731 | } |
2105 | } |
1732 | |
2106 | |
1733 | return ncur; |
2107 | return ncur; |
1734 | } |
2108 | } |
1735 | |
2109 | |
1736 | static void * noinline ecb_cold |
2110 | ecb_noinline ecb_cold |
|
|
2111 | static void * |
1737 | array_realloc (int elem, void *base, int *cur, int cnt) |
2112 | array_realloc (int elem, void *base, int *cur, int cnt) |
1738 | { |
2113 | { |
1739 | *cur = array_nextsize (elem, *cur, cnt); |
2114 | *cur = array_nextsize (elem, *cur, cnt); |
1740 | return ev_realloc (base, elem * *cur); |
2115 | return ev_realloc (base, elem * *cur); |
1741 | } |
2116 | } |
1742 | |
2117 | |
|
|
2118 | #define array_needsize_noinit(base,offset,count) |
|
|
2119 | |
1743 | #define array_init_zero(base,count) \ |
2120 | #define array_needsize_zerofill(base,offset,count) \ |
1744 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2121 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1745 | |
2122 | |
1746 | #define array_needsize(type,base,cur,cnt,init) \ |
2123 | #define array_needsize(type,base,cur,cnt,init) \ |
1747 | if (expect_false ((cnt) > (cur))) \ |
2124 | if (ecb_expect_false ((cnt) > (cur))) \ |
1748 | { \ |
2125 | { \ |
1749 | int ecb_unused ocur_ = (cur); \ |
2126 | ecb_unused int ocur_ = (cur); \ |
1750 | (base) = (type *)array_realloc \ |
2127 | (base) = (type *)array_realloc \ |
1751 | (sizeof (type), (base), &(cur), (cnt)); \ |
2128 | (sizeof (type), (base), &(cur), (cnt)); \ |
1752 | init ((base) + (ocur_), (cur) - ocur_); \ |
2129 | init ((base), ocur_, ((cur) - ocur_)); \ |
1753 | } |
2130 | } |
1754 | |
2131 | |
1755 | #if 0 |
2132 | #if 0 |
1756 | #define array_slim(type,stem) \ |
2133 | #define array_slim(type,stem) \ |
1757 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2134 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1766 | 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 |
1767 | |
2144 | |
1768 | /*****************************************************************************/ |
2145 | /*****************************************************************************/ |
1769 | |
2146 | |
1770 | /* dummy callback for pending events */ |
2147 | /* dummy callback for pending events */ |
1771 | static void noinline |
2148 | ecb_noinline |
|
|
2149 | static void |
1772 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2150 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1773 | { |
2151 | { |
1774 | } |
2152 | } |
1775 | |
2153 | |
1776 | void noinline |
2154 | ecb_noinline |
|
|
2155 | void |
1777 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2156 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1778 | { |
2157 | { |
1779 | W w_ = (W)w; |
2158 | W w_ = (W)w; |
1780 | int pri = ABSPRI (w_); |
2159 | int pri = ABSPRI (w_); |
1781 | |
2160 | |
1782 | if (expect_false (w_->pending)) |
2161 | if (ecb_expect_false (w_->pending)) |
1783 | pendings [pri][w_->pending - 1].events |= revents; |
2162 | pendings [pri][w_->pending - 1].events |= revents; |
1784 | else |
2163 | else |
1785 | { |
2164 | { |
1786 | w_->pending = ++pendingcnt [pri]; |
2165 | w_->pending = ++pendingcnt [pri]; |
1787 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2166 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1788 | pendings [pri][w_->pending - 1].w = w_; |
2167 | pendings [pri][w_->pending - 1].w = w_; |
1789 | pendings [pri][w_->pending - 1].events = revents; |
2168 | pendings [pri][w_->pending - 1].events = revents; |
1790 | } |
2169 | } |
1791 | |
2170 | |
1792 | pendingpri = NUMPRI - 1; |
2171 | pendingpri = NUMPRI - 1; |
1793 | } |
2172 | } |
1794 | |
2173 | |
1795 | inline_speed void |
2174 | inline_speed void |
1796 | feed_reverse (EV_P_ W w) |
2175 | feed_reverse (EV_P_ W w) |
1797 | { |
2176 | { |
1798 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2177 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1799 | rfeeds [rfeedcnt++] = w; |
2178 | rfeeds [rfeedcnt++] = w; |
1800 | } |
2179 | } |
1801 | |
2180 | |
1802 | inline_size void |
2181 | inline_size void |
1803 | feed_reverse_done (EV_P_ int revents) |
2182 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1838 | inline_speed void |
2217 | inline_speed void |
1839 | fd_event (EV_P_ int fd, int revents) |
2218 | fd_event (EV_P_ int fd, int revents) |
1840 | { |
2219 | { |
1841 | ANFD *anfd = anfds + fd; |
2220 | ANFD *anfd = anfds + fd; |
1842 | |
2221 | |
1843 | if (expect_true (!anfd->reify)) |
2222 | if (ecb_expect_true (!anfd->reify)) |
1844 | fd_event_nocheck (EV_A_ fd, revents); |
2223 | fd_event_nocheck (EV_A_ fd, revents); |
1845 | } |
2224 | } |
1846 | |
2225 | |
1847 | void |
2226 | void |
1848 | 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 |
1849 | { |
2228 | { |
1850 | if (fd >= 0 && fd < anfdmax) |
2229 | if (fd >= 0 && fd < anfdmax) |
1851 | fd_event_nocheck (EV_A_ fd, revents); |
2230 | fd_event_nocheck (EV_A_ fd, revents); |
1852 | } |
2231 | } |
1853 | |
2232 | |
… | |
… | |
1890 | ev_io *w; |
2269 | ev_io *w; |
1891 | |
2270 | |
1892 | unsigned char o_events = anfd->events; |
2271 | unsigned char o_events = anfd->events; |
1893 | unsigned char o_reify = anfd->reify; |
2272 | unsigned char o_reify = anfd->reify; |
1894 | |
2273 | |
1895 | anfd->reify = 0; |
2274 | anfd->reify = 0; |
1896 | |
2275 | |
1897 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2276 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1898 | { |
2277 | { |
1899 | anfd->events = 0; |
2278 | anfd->events = 0; |
1900 | |
2279 | |
1901 | 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) |
1902 | anfd->events |= (unsigned char)w->events; |
2281 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1911 | |
2290 | |
1912 | fdchangecnt = 0; |
2291 | fdchangecnt = 0; |
1913 | } |
2292 | } |
1914 | |
2293 | |
1915 | /* something about the given fd changed */ |
2294 | /* something about the given fd changed */ |
1916 | inline_size void |
2295 | inline_size |
|
|
2296 | void |
1917 | fd_change (EV_P_ int fd, int flags) |
2297 | fd_change (EV_P_ int fd, int flags) |
1918 | { |
2298 | { |
1919 | unsigned char reify = anfds [fd].reify; |
2299 | unsigned char reify = anfds [fd].reify; |
1920 | anfds [fd].reify |= flags; |
2300 | anfds [fd].reify |= flags; |
1921 | |
2301 | |
1922 | if (expect_true (!reify)) |
2302 | if (ecb_expect_true (!reify)) |
1923 | { |
2303 | { |
1924 | ++fdchangecnt; |
2304 | ++fdchangecnt; |
1925 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2305 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1926 | fdchanges [fdchangecnt - 1] = fd; |
2306 | fdchanges [fdchangecnt - 1] = fd; |
1927 | } |
2307 | } |
1928 | } |
2308 | } |
1929 | |
2309 | |
1930 | /* 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 */ |
1931 | inline_speed void ecb_cold |
2311 | inline_speed ecb_cold void |
1932 | fd_kill (EV_P_ int fd) |
2312 | fd_kill (EV_P_ int fd) |
1933 | { |
2313 | { |
1934 | ev_io *w; |
2314 | ev_io *w; |
1935 | |
2315 | |
1936 | while ((w = (ev_io *)anfds [fd].head)) |
2316 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1939 | 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); |
1940 | } |
2320 | } |
1941 | } |
2321 | } |
1942 | |
2322 | |
1943 | /* check whether the given fd is actually valid, for error recovery */ |
2323 | /* check whether the given fd is actually valid, for error recovery */ |
1944 | inline_size int ecb_cold |
2324 | inline_size ecb_cold int |
1945 | fd_valid (int fd) |
2325 | fd_valid (int fd) |
1946 | { |
2326 | { |
1947 | #ifdef _WIN32 |
2327 | #ifdef _WIN32 |
1948 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2328 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1949 | #else |
2329 | #else |
1950 | return fcntl (fd, F_GETFD) != -1; |
2330 | return fcntl (fd, F_GETFD) != -1; |
1951 | #endif |
2331 | #endif |
1952 | } |
2332 | } |
1953 | |
2333 | |
1954 | /* called on EBADF to verify fds */ |
2334 | /* called on EBADF to verify fds */ |
1955 | static void noinline ecb_cold |
2335 | ecb_noinline ecb_cold |
|
|
2336 | static void |
1956 | fd_ebadf (EV_P) |
2337 | fd_ebadf (EV_P) |
1957 | { |
2338 | { |
1958 | int fd; |
2339 | int fd; |
1959 | |
2340 | |
1960 | for (fd = 0; fd < anfdmax; ++fd) |
2341 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1962 | if (!fd_valid (fd) && errno == EBADF) |
2343 | if (!fd_valid (fd) && errno == EBADF) |
1963 | fd_kill (EV_A_ fd); |
2344 | fd_kill (EV_A_ fd); |
1964 | } |
2345 | } |
1965 | |
2346 | |
1966 | /* 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 */ |
1967 | static void noinline ecb_cold |
2348 | ecb_noinline ecb_cold |
|
|
2349 | static void |
1968 | fd_enomem (EV_P) |
2350 | fd_enomem (EV_P) |
1969 | { |
2351 | { |
1970 | int fd; |
2352 | int fd; |
1971 | |
2353 | |
1972 | for (fd = anfdmax; fd--; ) |
2354 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1976 | break; |
2358 | break; |
1977 | } |
2359 | } |
1978 | } |
2360 | } |
1979 | |
2361 | |
1980 | /* 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 */ |
1981 | static void noinline |
2363 | ecb_noinline |
|
|
2364 | static void |
1982 | fd_rearm_all (EV_P) |
2365 | fd_rearm_all (EV_P) |
1983 | { |
2366 | { |
1984 | int fd; |
2367 | int fd; |
1985 | |
2368 | |
1986 | for (fd = 0; fd < anfdmax; ++fd) |
2369 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
2039 | ev_tstamp minat; |
2422 | ev_tstamp minat; |
2040 | ANHE *minpos; |
2423 | ANHE *minpos; |
2041 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2424 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2042 | |
2425 | |
2043 | /* find minimum child */ |
2426 | /* find minimum child */ |
2044 | if (expect_true (pos + DHEAP - 1 < E)) |
2427 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2045 | { |
2428 | { |
2046 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2429 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2047 | 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)); |
2048 | 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)); |
2049 | 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)); |
2050 | } |
2433 | } |
2051 | else if (pos < E) |
2434 | else if (pos < E) |
2052 | { |
2435 | { |
2053 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2436 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2054 | 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)); |
2055 | 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)); |
2056 | 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)); |
2057 | } |
2440 | } |
2058 | else |
2441 | else |
2059 | break; |
2442 | break; |
2060 | |
2443 | |
2061 | if (ANHE_at (he) <= minat) |
2444 | if (ANHE_at (he) <= minat) |
… | |
… | |
2069 | |
2452 | |
2070 | heap [k] = he; |
2453 | heap [k] = he; |
2071 | ev_active (ANHE_w (he)) = k; |
2454 | ev_active (ANHE_w (he)) = k; |
2072 | } |
2455 | } |
2073 | |
2456 | |
2074 | #else /* 4HEAP */ |
2457 | #else /* not 4HEAP */ |
2075 | |
2458 | |
2076 | #define HEAP0 1 |
2459 | #define HEAP0 1 |
2077 | #define HPARENT(k) ((k) >> 1) |
2460 | #define HPARENT(k) ((k) >> 1) |
2078 | #define UPHEAP_DONE(p,k) (!(p)) |
2461 | #define UPHEAP_DONE(p,k) (!(p)) |
2079 | |
2462 | |
… | |
… | |
2167 | |
2550 | |
2168 | /*****************************************************************************/ |
2551 | /*****************************************************************************/ |
2169 | |
2552 | |
2170 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2171 | |
2554 | |
2172 | static void noinline ecb_cold |
2555 | ecb_noinline ecb_cold |
|
|
2556 | static void |
2173 | evpipe_init (EV_P) |
2557 | evpipe_init (EV_P) |
2174 | { |
2558 | { |
2175 | if (!ev_is_active (&pipe_w)) |
2559 | if (!ev_is_active (&pipe_w)) |
2176 | { |
2560 | { |
2177 | int fds [2]; |
2561 | int fds [2]; |
… | |
… | |
2217 | inline_speed void |
2601 | inline_speed void |
2218 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2602 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2219 | { |
2603 | { |
2220 | 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 */ |
2221 | |
2605 | |
2222 | if (expect_true (*flag)) |
2606 | if (ecb_expect_true (*flag)) |
2223 | return; |
2607 | return; |
2224 | |
2608 | |
2225 | *flag = 1; |
2609 | *flag = 1; |
2226 | 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 */ |
2227 | |
2611 | |
… | |
… | |
2248 | #endif |
2632 | #endif |
2249 | { |
2633 | { |
2250 | #ifdef _WIN32 |
2634 | #ifdef _WIN32 |
2251 | WSABUF buf; |
2635 | WSABUF buf; |
2252 | DWORD sent; |
2636 | DWORD sent; |
2253 | buf.buf = &buf; |
2637 | buf.buf = (char *)&buf; |
2254 | buf.len = 1; |
2638 | buf.len = 1; |
2255 | 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); |
2256 | #else |
2640 | #else |
2257 | write (evpipe [1], &(evpipe [1]), 1); |
2641 | write (evpipe [1], &(evpipe [1]), 1); |
2258 | #endif |
2642 | #endif |
… | |
… | |
2304 | sig_pending = 0; |
2688 | sig_pending = 0; |
2305 | |
2689 | |
2306 | ECB_MEMORY_FENCE; |
2690 | ECB_MEMORY_FENCE; |
2307 | |
2691 | |
2308 | for (i = EV_NSIG - 1; i--; ) |
2692 | for (i = EV_NSIG - 1; i--; ) |
2309 | if (expect_false (signals [i].pending)) |
2693 | if (ecb_expect_false (signals [i].pending)) |
2310 | ev_feed_signal_event (EV_A_ i + 1); |
2694 | ev_feed_signal_event (EV_A_ i + 1); |
2311 | } |
2695 | } |
2312 | #endif |
2696 | #endif |
2313 | |
2697 | |
2314 | #if EV_ASYNC_ENABLE |
2698 | #if EV_ASYNC_ENABLE |
… | |
… | |
2330 | } |
2714 | } |
2331 | |
2715 | |
2332 | /*****************************************************************************/ |
2716 | /*****************************************************************************/ |
2333 | |
2717 | |
2334 | void |
2718 | void |
2335 | ev_feed_signal (int signum) EV_THROW |
2719 | ev_feed_signal (int signum) EV_NOEXCEPT |
2336 | { |
2720 | { |
2337 | #if EV_MULTIPLICITY |
2721 | #if EV_MULTIPLICITY |
2338 | EV_P; |
2722 | EV_P; |
2339 | ECB_MEMORY_FENCE_ACQUIRE; |
2723 | ECB_MEMORY_FENCE_ACQUIRE; |
2340 | EV_A = signals [signum - 1].loop; |
2724 | EV_A = signals [signum - 1].loop; |
… | |
… | |
2355 | #endif |
2739 | #endif |
2356 | |
2740 | |
2357 | ev_feed_signal (signum); |
2741 | ev_feed_signal (signum); |
2358 | } |
2742 | } |
2359 | |
2743 | |
2360 | void noinline |
2744 | ecb_noinline |
|
|
2745 | void |
2361 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2746 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2362 | { |
2747 | { |
2363 | WL w; |
2748 | WL w; |
2364 | |
2749 | |
2365 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2750 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2366 | return; |
2751 | return; |
2367 | |
2752 | |
2368 | --signum; |
2753 | --signum; |
2369 | |
2754 | |
2370 | #if EV_MULTIPLICITY |
2755 | #if EV_MULTIPLICITY |
2371 | /* 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 */ |
2372 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2757 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2373 | |
2758 | |
2374 | if (expect_false (signals [signum].loop != EV_A)) |
2759 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2375 | return; |
2760 | return; |
2376 | #endif |
2761 | #endif |
2377 | |
2762 | |
2378 | signals [signum].pending = 0; |
2763 | signals [signum].pending = 0; |
2379 | ECB_MEMORY_FENCE_RELEASE; |
2764 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2475 | # include "ev_kqueue.c" |
2860 | # include "ev_kqueue.c" |
2476 | #endif |
2861 | #endif |
2477 | #if EV_USE_EPOLL |
2862 | #if EV_USE_EPOLL |
2478 | # include "ev_epoll.c" |
2863 | # include "ev_epoll.c" |
2479 | #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 |
2480 | #if EV_USE_POLL |
2871 | #if EV_USE_POLL |
2481 | # include "ev_poll.c" |
2872 | # include "ev_poll.c" |
2482 | #endif |
2873 | #endif |
2483 | #if EV_USE_SELECT |
2874 | #if EV_USE_SELECT |
2484 | # include "ev_select.c" |
2875 | # include "ev_select.c" |
2485 | #endif |
2876 | #endif |
2486 | |
2877 | |
2487 | int ecb_cold |
2878 | ecb_cold int |
2488 | ev_version_major (void) EV_THROW |
2879 | ev_version_major (void) EV_NOEXCEPT |
2489 | { |
2880 | { |
2490 | return EV_VERSION_MAJOR; |
2881 | return EV_VERSION_MAJOR; |
2491 | } |
2882 | } |
2492 | |
2883 | |
2493 | int ecb_cold |
2884 | ecb_cold int |
2494 | ev_version_minor (void) EV_THROW |
2885 | ev_version_minor (void) EV_NOEXCEPT |
2495 | { |
2886 | { |
2496 | return EV_VERSION_MINOR; |
2887 | return EV_VERSION_MINOR; |
2497 | } |
2888 | } |
2498 | |
2889 | |
2499 | /* 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 */ |
2500 | int inline_size ecb_cold |
2891 | inline_size ecb_cold int |
2501 | enable_secure (void) |
2892 | enable_secure (void) |
2502 | { |
2893 | { |
2503 | #ifdef _WIN32 |
2894 | #ifdef _WIN32 |
2504 | return 0; |
2895 | return 0; |
2505 | #else |
2896 | #else |
2506 | return getuid () != geteuid () |
2897 | return getuid () != geteuid () |
2507 | || getgid () != getegid (); |
2898 | || getgid () != getegid (); |
2508 | #endif |
2899 | #endif |
2509 | } |
2900 | } |
2510 | |
2901 | |
2511 | unsigned int ecb_cold |
2902 | ecb_cold |
|
|
2903 | unsigned int |
2512 | ev_supported_backends (void) EV_THROW |
2904 | ev_supported_backends (void) EV_NOEXCEPT |
2513 | { |
2905 | { |
2514 | unsigned int flags = 0; |
2906 | unsigned int flags = 0; |
2515 | |
2907 | |
2516 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2908 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2517 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2909 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2518 | 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; |
2519 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2913 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2520 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2914 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2521 | |
2915 | |
2522 | return flags; |
2916 | return flags; |
2523 | } |
2917 | } |
2524 | |
2918 | |
2525 | unsigned int ecb_cold |
2919 | ecb_cold |
|
|
2920 | unsigned int |
2526 | ev_recommended_backends (void) EV_THROW |
2921 | ev_recommended_backends (void) EV_NOEXCEPT |
2527 | { |
2922 | { |
2528 | unsigned int flags = ev_supported_backends (); |
2923 | unsigned int flags = ev_supported_backends (); |
2529 | |
2924 | |
2530 | #ifndef __NetBSD__ |
2925 | #ifndef __NetBSD__ |
2531 | /* kqueue is borked on everything but netbsd apparently */ |
2926 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2539 | #endif |
2934 | #endif |
2540 | #ifdef __FreeBSD__ |
2935 | #ifdef __FreeBSD__ |
2541 | 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) */ |
2542 | #endif |
2937 | #endif |
2543 | |
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 | |
2544 | return flags; |
2948 | return flags; |
2545 | } |
2949 | } |
2546 | |
2950 | |
2547 | unsigned int ecb_cold |
2951 | ecb_cold |
|
|
2952 | unsigned int |
2548 | ev_embeddable_backends (void) EV_THROW |
2953 | ev_embeddable_backends (void) EV_NOEXCEPT |
2549 | { |
2954 | { |
2550 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2955 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2551 | |
2956 | |
2552 | /* 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 */ |
2553 | 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 */ |
2554 | flags &= ~EVBACKEND_EPOLL; |
2959 | flags &= ~EVBACKEND_EPOLL; |
2555 | |
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 | |
2556 | return flags; |
2968 | return flags; |
2557 | } |
2969 | } |
2558 | |
2970 | |
2559 | unsigned int |
2971 | unsigned int |
2560 | ev_backend (EV_P) EV_THROW |
2972 | ev_backend (EV_P) EV_NOEXCEPT |
2561 | { |
2973 | { |
2562 | return backend; |
2974 | return backend; |
2563 | } |
2975 | } |
2564 | |
2976 | |
2565 | #if EV_FEATURE_API |
2977 | #if EV_FEATURE_API |
2566 | unsigned int |
2978 | unsigned int |
2567 | ev_iteration (EV_P) EV_THROW |
2979 | ev_iteration (EV_P) EV_NOEXCEPT |
2568 | { |
2980 | { |
2569 | return loop_count; |
2981 | return loop_count; |
2570 | } |
2982 | } |
2571 | |
2983 | |
2572 | unsigned int |
2984 | unsigned int |
2573 | ev_depth (EV_P) EV_THROW |
2985 | ev_depth (EV_P) EV_NOEXCEPT |
2574 | { |
2986 | { |
2575 | return loop_depth; |
2987 | return loop_depth; |
2576 | } |
2988 | } |
2577 | |
2989 | |
2578 | void |
2990 | void |
2579 | 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 |
2580 | { |
2992 | { |
2581 | io_blocktime = interval; |
2993 | io_blocktime = interval; |
2582 | } |
2994 | } |
2583 | |
2995 | |
2584 | void |
2996 | void |
2585 | 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 |
2586 | { |
2998 | { |
2587 | timeout_blocktime = interval; |
2999 | timeout_blocktime = interval; |
2588 | } |
3000 | } |
2589 | |
3001 | |
2590 | void |
3002 | void |
2591 | ev_set_userdata (EV_P_ void *data) EV_THROW |
3003 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2592 | { |
3004 | { |
2593 | userdata = data; |
3005 | userdata = data; |
2594 | } |
3006 | } |
2595 | |
3007 | |
2596 | void * |
3008 | void * |
2597 | ev_userdata (EV_P) EV_THROW |
3009 | ev_userdata (EV_P) EV_NOEXCEPT |
2598 | { |
3010 | { |
2599 | return userdata; |
3011 | return userdata; |
2600 | } |
3012 | } |
2601 | |
3013 | |
2602 | void |
3014 | void |
2603 | 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 |
2604 | { |
3016 | { |
2605 | invoke_cb = invoke_pending_cb; |
3017 | invoke_cb = invoke_pending_cb; |
2606 | } |
3018 | } |
2607 | |
3019 | |
2608 | void |
3020 | void |
2609 | 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 |
2610 | { |
3022 | { |
2611 | release_cb = release; |
3023 | release_cb = release; |
2612 | acquire_cb = acquire; |
3024 | acquire_cb = acquire; |
2613 | } |
3025 | } |
2614 | #endif |
3026 | #endif |
2615 | |
3027 | |
2616 | /* initialise a loop structure, must be zero-initialised */ |
3028 | /* initialise a loop structure, must be zero-initialised */ |
2617 | static void noinline ecb_cold |
3029 | ecb_noinline ecb_cold |
|
|
3030 | static void |
2618 | loop_init (EV_P_ unsigned int flags) EV_THROW |
3031 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2619 | { |
3032 | { |
2620 | if (!backend) |
3033 | if (!backend) |
2621 | { |
3034 | { |
2622 | origflags = flags; |
3035 | origflags = flags; |
2623 | |
3036 | |
… | |
… | |
2681 | |
3094 | |
2682 | if (!(flags & EVBACKEND_MASK)) |
3095 | if (!(flags & EVBACKEND_MASK)) |
2683 | flags |= ev_recommended_backends (); |
3096 | flags |= ev_recommended_backends (); |
2684 | |
3097 | |
2685 | #if EV_USE_IOCP |
3098 | #if EV_USE_IOCP |
2686 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3099 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2687 | #endif |
3100 | #endif |
2688 | #if EV_USE_PORT |
3101 | #if EV_USE_PORT |
2689 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3102 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2690 | #endif |
3103 | #endif |
2691 | #if EV_USE_KQUEUE |
3104 | #if EV_USE_KQUEUE |
2692 | 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); |
2693 | #endif |
3112 | #endif |
2694 | #if EV_USE_EPOLL |
3113 | #if EV_USE_EPOLL |
2695 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3114 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2696 | #endif |
3115 | #endif |
2697 | #if EV_USE_POLL |
3116 | #if EV_USE_POLL |
2698 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3117 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2699 | #endif |
3118 | #endif |
2700 | #if EV_USE_SELECT |
3119 | #if EV_USE_SELECT |
2701 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3120 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2702 | #endif |
3121 | #endif |
2703 | |
3122 | |
2704 | ev_prepare_init (&pending_w, pendingcb); |
3123 | ev_prepare_init (&pending_w, pendingcb); |
2705 | |
3124 | |
2706 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3125 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2709 | #endif |
3128 | #endif |
2710 | } |
3129 | } |
2711 | } |
3130 | } |
2712 | |
3131 | |
2713 | /* free up a loop structure */ |
3132 | /* free up a loop structure */ |
2714 | void ecb_cold |
3133 | ecb_cold |
|
|
3134 | void |
2715 | ev_loop_destroy (EV_P) |
3135 | ev_loop_destroy (EV_P) |
2716 | { |
3136 | { |
2717 | int i; |
3137 | int i; |
2718 | |
3138 | |
2719 | #if EV_MULTIPLICITY |
3139 | #if EV_MULTIPLICITY |
… | |
… | |
2722 | return; |
3142 | return; |
2723 | #endif |
3143 | #endif |
2724 | |
3144 | |
2725 | #if EV_CLEANUP_ENABLE |
3145 | #if EV_CLEANUP_ENABLE |
2726 | /* queue cleanup watchers (and execute them) */ |
3146 | /* queue cleanup watchers (and execute them) */ |
2727 | if (expect_false (cleanupcnt)) |
3147 | if (ecb_expect_false (cleanupcnt)) |
2728 | { |
3148 | { |
2729 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3149 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2730 | EV_INVOKE_PENDING; |
3150 | EV_INVOKE_PENDING; |
2731 | } |
3151 | } |
2732 | #endif |
3152 | #endif |
… | |
… | |
2760 | |
3180 | |
2761 | if (backend_fd >= 0) |
3181 | if (backend_fd >= 0) |
2762 | close (backend_fd); |
3182 | close (backend_fd); |
2763 | |
3183 | |
2764 | #if EV_USE_IOCP |
3184 | #if EV_USE_IOCP |
2765 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3185 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2766 | #endif |
3186 | #endif |
2767 | #if EV_USE_PORT |
3187 | #if EV_USE_PORT |
2768 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3188 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2769 | #endif |
3189 | #endif |
2770 | #if EV_USE_KQUEUE |
3190 | #if EV_USE_KQUEUE |
2771 | 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); |
2772 | #endif |
3198 | #endif |
2773 | #if EV_USE_EPOLL |
3199 | #if EV_USE_EPOLL |
2774 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3200 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2775 | #endif |
3201 | #endif |
2776 | #if EV_USE_POLL |
3202 | #if EV_USE_POLL |
2777 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3203 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2778 | #endif |
3204 | #endif |
2779 | #if EV_USE_SELECT |
3205 | #if EV_USE_SELECT |
2780 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3206 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2781 | #endif |
3207 | #endif |
2782 | |
3208 | |
2783 | for (i = NUMPRI; i--; ) |
3209 | for (i = NUMPRI; i--; ) |
2784 | { |
3210 | { |
2785 | array_free (pending, [i]); |
3211 | array_free (pending, [i]); |
… | |
… | |
2827 | |
3253 | |
2828 | inline_size void |
3254 | inline_size void |
2829 | loop_fork (EV_P) |
3255 | loop_fork (EV_P) |
2830 | { |
3256 | { |
2831 | #if EV_USE_PORT |
3257 | #if EV_USE_PORT |
2832 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3258 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2833 | #endif |
3259 | #endif |
2834 | #if EV_USE_KQUEUE |
3260 | #if EV_USE_KQUEUE |
2835 | 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); |
2836 | #endif |
3268 | #endif |
2837 | #if EV_USE_EPOLL |
3269 | #if EV_USE_EPOLL |
2838 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3270 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2839 | #endif |
3271 | #endif |
2840 | #if EV_USE_INOTIFY |
3272 | #if EV_USE_INOTIFY |
2841 | infy_fork (EV_A); |
3273 | infy_fork (EV_A); |
2842 | #endif |
3274 | #endif |
2843 | |
3275 | |
2844 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3276 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2845 | if (ev_is_active (&pipe_w)) |
3277 | if (ev_is_active (&pipe_w) && postfork != 2) |
2846 | { |
3278 | { |
2847 | /* 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 */ |
2848 | |
3280 | |
2849 | ev_ref (EV_A); |
3281 | ev_ref (EV_A); |
2850 | ev_io_stop (EV_A_ &pipe_w); |
3282 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2861 | postfork = 0; |
3293 | postfork = 0; |
2862 | } |
3294 | } |
2863 | |
3295 | |
2864 | #if EV_MULTIPLICITY |
3296 | #if EV_MULTIPLICITY |
2865 | |
3297 | |
|
|
3298 | ecb_cold |
2866 | struct ev_loop * ecb_cold |
3299 | struct ev_loop * |
2867 | ev_loop_new (unsigned int flags) EV_THROW |
3300 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2868 | { |
3301 | { |
2869 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3302 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2870 | |
3303 | |
2871 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3304 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2872 | loop_init (EV_A_ flags); |
3305 | loop_init (EV_A_ flags); |
… | |
… | |
2879 | } |
3312 | } |
2880 | |
3313 | |
2881 | #endif /* multiplicity */ |
3314 | #endif /* multiplicity */ |
2882 | |
3315 | |
2883 | #if EV_VERIFY |
3316 | #if EV_VERIFY |
2884 | static void noinline ecb_cold |
3317 | ecb_noinline ecb_cold |
|
|
3318 | static void |
2885 | verify_watcher (EV_P_ W w) |
3319 | verify_watcher (EV_P_ W w) |
2886 | { |
3320 | { |
2887 | 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)); |
2888 | |
3322 | |
2889 | if (w->pending) |
3323 | if (w->pending) |
2890 | 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)); |
2891 | } |
3325 | } |
2892 | |
3326 | |
2893 | static void noinline ecb_cold |
3327 | ecb_noinline ecb_cold |
|
|
3328 | static void |
2894 | verify_heap (EV_P_ ANHE *heap, int N) |
3329 | verify_heap (EV_P_ ANHE *heap, int N) |
2895 | { |
3330 | { |
2896 | int i; |
3331 | int i; |
2897 | |
3332 | |
2898 | for (i = HEAP0; i < N + HEAP0; ++i) |
3333 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2903 | |
3338 | |
2904 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3339 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2905 | } |
3340 | } |
2906 | } |
3341 | } |
2907 | |
3342 | |
2908 | static void noinline ecb_cold |
3343 | ecb_noinline ecb_cold |
|
|
3344 | static void |
2909 | array_verify (EV_P_ W *ws, int cnt) |
3345 | array_verify (EV_P_ W *ws, int cnt) |
2910 | { |
3346 | { |
2911 | while (cnt--) |
3347 | while (cnt--) |
2912 | { |
3348 | { |
2913 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3349 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2916 | } |
3352 | } |
2917 | #endif |
3353 | #endif |
2918 | |
3354 | |
2919 | #if EV_FEATURE_API |
3355 | #if EV_FEATURE_API |
2920 | void ecb_cold |
3356 | void ecb_cold |
2921 | ev_verify (EV_P) EV_THROW |
3357 | ev_verify (EV_P) EV_NOEXCEPT |
2922 | { |
3358 | { |
2923 | #if EV_VERIFY |
3359 | #if EV_VERIFY |
2924 | int i; |
3360 | int i; |
2925 | WL w, w2; |
3361 | WL w, w2; |
2926 | |
3362 | |
… | |
… | |
3002 | #endif |
3438 | #endif |
3003 | } |
3439 | } |
3004 | #endif |
3440 | #endif |
3005 | |
3441 | |
3006 | #if EV_MULTIPLICITY |
3442 | #if EV_MULTIPLICITY |
|
|
3443 | ecb_cold |
3007 | struct ev_loop * ecb_cold |
3444 | struct ev_loop * |
3008 | #else |
3445 | #else |
3009 | int |
3446 | int |
3010 | #endif |
3447 | #endif |
3011 | ev_default_loop (unsigned int flags) EV_THROW |
3448 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
3012 | { |
3449 | { |
3013 | if (!ev_default_loop_ptr) |
3450 | if (!ev_default_loop_ptr) |
3014 | { |
3451 | { |
3015 | #if EV_MULTIPLICITY |
3452 | #if EV_MULTIPLICITY |
3016 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3453 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
3035 | |
3472 | |
3036 | return ev_default_loop_ptr; |
3473 | return ev_default_loop_ptr; |
3037 | } |
3474 | } |
3038 | |
3475 | |
3039 | void |
3476 | void |
3040 | ev_loop_fork (EV_P) EV_THROW |
3477 | ev_loop_fork (EV_P) EV_NOEXCEPT |
3041 | { |
3478 | { |
3042 | postfork = 1; |
3479 | postfork = 1; |
3043 | } |
3480 | } |
3044 | |
3481 | |
3045 | /*****************************************************************************/ |
3482 | /*****************************************************************************/ |
… | |
… | |
3049 | { |
3486 | { |
3050 | EV_CB_INVOKE ((W)w, revents); |
3487 | EV_CB_INVOKE ((W)w, revents); |
3051 | } |
3488 | } |
3052 | |
3489 | |
3053 | unsigned int |
3490 | unsigned int |
3054 | ev_pending_count (EV_P) EV_THROW |
3491 | ev_pending_count (EV_P) EV_NOEXCEPT |
3055 | { |
3492 | { |
3056 | int pri; |
3493 | int pri; |
3057 | unsigned int count = 0; |
3494 | unsigned int count = 0; |
3058 | |
3495 | |
3059 | for (pri = NUMPRI; pri--; ) |
3496 | for (pri = NUMPRI; pri--; ) |
3060 | count += pendingcnt [pri]; |
3497 | count += pendingcnt [pri]; |
3061 | |
3498 | |
3062 | return count; |
3499 | return count; |
3063 | } |
3500 | } |
3064 | |
3501 | |
3065 | void noinline |
3502 | ecb_noinline |
|
|
3503 | void |
3066 | ev_invoke_pending (EV_P) |
3504 | ev_invoke_pending (EV_P) |
3067 | { |
3505 | { |
3068 | pendingpri = NUMPRI; |
3506 | pendingpri = NUMPRI; |
3069 | |
3507 | |
3070 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3508 | do |
3071 | { |
3509 | { |
3072 | --pendingpri; |
3510 | --pendingpri; |
3073 | |
3511 | |
|
|
3512 | /* pendingpri possibly gets modified in the inner loop */ |
3074 | while (pendingcnt [pendingpri]) |
3513 | while (pendingcnt [pendingpri]) |
3075 | { |
3514 | { |
3076 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3515 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3077 | |
3516 | |
3078 | p->w->pending = 0; |
3517 | p->w->pending = 0; |
3079 | EV_CB_INVOKE (p->w, p->events); |
3518 | EV_CB_INVOKE (p->w, p->events); |
3080 | EV_FREQUENT_CHECK; |
3519 | EV_FREQUENT_CHECK; |
3081 | } |
3520 | } |
3082 | } |
3521 | } |
|
|
3522 | while (pendingpri); |
3083 | } |
3523 | } |
3084 | |
3524 | |
3085 | #if EV_IDLE_ENABLE |
3525 | #if EV_IDLE_ENABLE |
3086 | /* make idle watchers pending. this handles the "call-idle */ |
3526 | /* make idle watchers pending. this handles the "call-idle */ |
3087 | /* only when higher priorities are idle" logic */ |
3527 | /* only when higher priorities are idle" logic */ |
3088 | inline_size void |
3528 | inline_size void |
3089 | idle_reify (EV_P) |
3529 | idle_reify (EV_P) |
3090 | { |
3530 | { |
3091 | if (expect_false (idleall)) |
3531 | if (ecb_expect_false (idleall)) |
3092 | { |
3532 | { |
3093 | int pri; |
3533 | int pri; |
3094 | |
3534 | |
3095 | for (pri = NUMPRI; pri--; ) |
3535 | for (pri = NUMPRI; pri--; ) |
3096 | { |
3536 | { |
… | |
… | |
3126 | { |
3566 | { |
3127 | ev_at (w) += w->repeat; |
3567 | ev_at (w) += w->repeat; |
3128 | if (ev_at (w) < mn_now) |
3568 | if (ev_at (w) < mn_now) |
3129 | ev_at (w) = mn_now; |
3569 | ev_at (w) = mn_now; |
3130 | |
3570 | |
3131 | 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.))); |
3132 | |
3572 | |
3133 | ANHE_at_cache (timers [HEAP0]); |
3573 | ANHE_at_cache (timers [HEAP0]); |
3134 | downheap (timers, timercnt, HEAP0); |
3574 | downheap (timers, timercnt, HEAP0); |
3135 | } |
3575 | } |
3136 | else |
3576 | else |
… | |
… | |
3145 | } |
3585 | } |
3146 | } |
3586 | } |
3147 | |
3587 | |
3148 | #if EV_PERIODIC_ENABLE |
3588 | #if EV_PERIODIC_ENABLE |
3149 | |
3589 | |
3150 | static void noinline |
3590 | ecb_noinline |
|
|
3591 | static void |
3151 | periodic_recalc (EV_P_ ev_periodic *w) |
3592 | periodic_recalc (EV_P_ ev_periodic *w) |
3152 | { |
3593 | { |
3153 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3594 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3154 | 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); |
3155 | |
3596 | |
… | |
… | |
3157 | while (at <= ev_rt_now) |
3598 | while (at <= ev_rt_now) |
3158 | { |
3599 | { |
3159 | ev_tstamp nat = at + w->interval; |
3600 | ev_tstamp nat = at + w->interval; |
3160 | |
3601 | |
3161 | /* when resolution fails us, we use ev_rt_now */ |
3602 | /* when resolution fails us, we use ev_rt_now */ |
3162 | if (expect_false (nat == at)) |
3603 | if (ecb_expect_false (nat == at)) |
3163 | { |
3604 | { |
3164 | at = ev_rt_now; |
3605 | at = ev_rt_now; |
3165 | break; |
3606 | break; |
3166 | } |
3607 | } |
3167 | |
3608 | |
… | |
… | |
3213 | } |
3654 | } |
3214 | } |
3655 | } |
3215 | |
3656 | |
3216 | /* simply recalculate all periodics */ |
3657 | /* simply recalculate all periodics */ |
3217 | /* 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? */ |
3218 | static void noinline ecb_cold |
3659 | ecb_noinline ecb_cold |
|
|
3660 | static void |
3219 | periodics_reschedule (EV_P) |
3661 | periodics_reschedule (EV_P) |
3220 | { |
3662 | { |
3221 | int i; |
3663 | int i; |
3222 | |
3664 | |
3223 | /* adjust periodics after time jump */ |
3665 | /* adjust periodics after time jump */ |
… | |
… | |
3236 | reheap (periodics, periodiccnt); |
3678 | reheap (periodics, periodiccnt); |
3237 | } |
3679 | } |
3238 | #endif |
3680 | #endif |
3239 | |
3681 | |
3240 | /* adjust all timers by a given offset */ |
3682 | /* adjust all timers by a given offset */ |
3241 | static void noinline ecb_cold |
3683 | ecb_noinline ecb_cold |
|
|
3684 | static void |
3242 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3685 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3243 | { |
3686 | { |
3244 | int i; |
3687 | int i; |
3245 | |
3688 | |
3246 | for (i = 0; i < timercnt; ++i) |
3689 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3255 | /* also detect if there was a timejump, and act accordingly */ |
3698 | /* also detect if there was a timejump, and act accordingly */ |
3256 | inline_speed void |
3699 | inline_speed void |
3257 | time_update (EV_P_ ev_tstamp max_block) |
3700 | time_update (EV_P_ ev_tstamp max_block) |
3258 | { |
3701 | { |
3259 | #if EV_USE_MONOTONIC |
3702 | #if EV_USE_MONOTONIC |
3260 | if (expect_true (have_monotonic)) |
3703 | if (ecb_expect_true (have_monotonic)) |
3261 | { |
3704 | { |
3262 | int i; |
3705 | int i; |
3263 | ev_tstamp odiff = rtmn_diff; |
3706 | ev_tstamp odiff = rtmn_diff; |
3264 | |
3707 | |
3265 | mn_now = get_clock (); |
3708 | mn_now = get_clock (); |
3266 | |
3709 | |
3267 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3710 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3268 | /* interpolate in the meantime */ |
3711 | /* interpolate in the meantime */ |
3269 | 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))) |
3270 | { |
3713 | { |
3271 | ev_rt_now = rtmn_diff + mn_now; |
3714 | ev_rt_now = rtmn_diff + mn_now; |
3272 | return; |
3715 | return; |
3273 | } |
3716 | } |
3274 | |
3717 | |
… | |
… | |
3288 | ev_tstamp diff; |
3731 | ev_tstamp diff; |
3289 | rtmn_diff = ev_rt_now - mn_now; |
3732 | rtmn_diff = ev_rt_now - mn_now; |
3290 | |
3733 | |
3291 | diff = odiff - rtmn_diff; |
3734 | diff = odiff - rtmn_diff; |
3292 | |
3735 | |
3293 | 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))) |
3294 | return; /* all is well */ |
3737 | return; /* all is well */ |
3295 | |
3738 | |
3296 | ev_rt_now = ev_time (); |
3739 | ev_rt_now = ev_time (); |
3297 | mn_now = get_clock (); |
3740 | mn_now = get_clock (); |
3298 | now_floor = mn_now; |
3741 | now_floor = mn_now; |
… | |
… | |
3307 | else |
3750 | else |
3308 | #endif |
3751 | #endif |
3309 | { |
3752 | { |
3310 | ev_rt_now = ev_time (); |
3753 | ev_rt_now = ev_time (); |
3311 | |
3754 | |
3312 | 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))) |
3313 | { |
3756 | { |
3314 | /* 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 */ |
3315 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3758 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3316 | #if EV_PERIODIC_ENABLE |
3759 | #if EV_PERIODIC_ENABLE |
3317 | periodics_reschedule (EV_A); |
3760 | periodics_reschedule (EV_A); |
… | |
… | |
3340 | #if EV_VERIFY >= 2 |
3783 | #if EV_VERIFY >= 2 |
3341 | ev_verify (EV_A); |
3784 | ev_verify (EV_A); |
3342 | #endif |
3785 | #endif |
3343 | |
3786 | |
3344 | #ifndef _WIN32 |
3787 | #ifndef _WIN32 |
3345 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3788 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3346 | if (expect_false (getpid () != curpid)) |
3789 | if (ecb_expect_false (getpid () != curpid)) |
3347 | { |
3790 | { |
3348 | curpid = getpid (); |
3791 | curpid = getpid (); |
3349 | postfork = 1; |
3792 | postfork = 1; |
3350 | } |
3793 | } |
3351 | #endif |
3794 | #endif |
3352 | |
3795 | |
3353 | #if EV_FORK_ENABLE |
3796 | #if EV_FORK_ENABLE |
3354 | /* we might have forked, so queue fork handlers */ |
3797 | /* we might have forked, so queue fork handlers */ |
3355 | if (expect_false (postfork)) |
3798 | if (ecb_expect_false (postfork)) |
3356 | if (forkcnt) |
3799 | if (forkcnt) |
3357 | { |
3800 | { |
3358 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3801 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3359 | EV_INVOKE_PENDING; |
3802 | EV_INVOKE_PENDING; |
3360 | } |
3803 | } |
3361 | #endif |
3804 | #endif |
3362 | |
3805 | |
3363 | #if EV_PREPARE_ENABLE |
3806 | #if EV_PREPARE_ENABLE |
3364 | /* queue prepare watchers (and execute them) */ |
3807 | /* queue prepare watchers (and execute them) */ |
3365 | if (expect_false (preparecnt)) |
3808 | if (ecb_expect_false (preparecnt)) |
3366 | { |
3809 | { |
3367 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3368 | EV_INVOKE_PENDING; |
3811 | EV_INVOKE_PENDING; |
3369 | } |
3812 | } |
3370 | #endif |
3813 | #endif |
3371 | |
3814 | |
3372 | if (expect_false (loop_done)) |
3815 | if (ecb_expect_false (loop_done)) |
3373 | break; |
3816 | break; |
3374 | |
3817 | |
3375 | /* we might have forked, so reify kernel state if necessary */ |
3818 | /* we might have forked, so reify kernel state if necessary */ |
3376 | if (expect_false (postfork)) |
3819 | if (ecb_expect_false (postfork)) |
3377 | loop_fork (EV_A); |
3820 | loop_fork (EV_A); |
3378 | |
3821 | |
3379 | /* update fd-related kernel structures */ |
3822 | /* update fd-related kernel structures */ |
3380 | fd_reify (EV_A); |
3823 | fd_reify (EV_A); |
3381 | |
3824 | |
… | |
… | |
3386 | |
3829 | |
3387 | /* remember old timestamp for io_blocktime calculation */ |
3830 | /* remember old timestamp for io_blocktime calculation */ |
3388 | ev_tstamp prev_mn_now = mn_now; |
3831 | ev_tstamp prev_mn_now = mn_now; |
3389 | |
3832 | |
3390 | /* update time to cancel out callback processing overhead */ |
3833 | /* update time to cancel out callback processing overhead */ |
3391 | time_update (EV_A_ 1e100); |
3834 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3392 | |
3835 | |
3393 | /* from now on, we want a pipe-wake-up */ |
3836 | /* from now on, we want a pipe-wake-up */ |
3394 | pipe_write_wanted = 1; |
3837 | pipe_write_wanted = 1; |
3395 | |
3838 | |
3396 | 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 */ |
3397 | |
3840 | |
3398 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3841 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3399 | { |
3842 | { |
3400 | waittime = MAX_BLOCKTIME; |
3843 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
3401 | |
3844 | |
3402 | if (timercnt) |
3845 | if (timercnt) |
3403 | { |
3846 | { |
3404 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3847 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3405 | if (waittime > to) waittime = to; |
3848 | if (waittime > to) waittime = to; |
… | |
… | |
3412 | if (waittime > to) waittime = to; |
3855 | if (waittime > to) waittime = to; |
3413 | } |
3856 | } |
3414 | #endif |
3857 | #endif |
3415 | |
3858 | |
3416 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3859 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3417 | if (expect_false (waittime < timeout_blocktime)) |
3860 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3418 | waittime = timeout_blocktime; |
3861 | waittime = timeout_blocktime; |
3419 | |
3862 | |
3420 | /* at this point, we NEED to wait, so we have to ensure */ |
3863 | /* now there are two more special cases left, either we have |
3421 | /* 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 wait for a minimum |
|
|
3866 | * amount of time for some event loop backends. |
|
|
3867 | */ |
3422 | 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.) |
3423 | waittime = backend_mintime; |
3871 | : backend_mintime; |
3424 | |
3872 | |
3425 | /* extra check because io_blocktime is commonly 0 */ |
3873 | /* extra check because io_blocktime is commonly 0 */ |
3426 | if (expect_false (io_blocktime)) |
3874 | if (ecb_expect_false (io_blocktime)) |
3427 | { |
3875 | { |
3428 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3876 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3429 | |
3877 | |
3430 | if (sleeptime > waittime - backend_mintime) |
3878 | if (sleeptime > waittime - backend_mintime) |
3431 | sleeptime = waittime - backend_mintime; |
3879 | sleeptime = waittime - backend_mintime; |
3432 | |
3880 | |
3433 | if (expect_true (sleeptime > 0.)) |
3881 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3434 | { |
3882 | { |
3435 | ev_sleep (sleeptime); |
3883 | ev_sleep (sleeptime); |
3436 | waittime -= sleeptime; |
3884 | waittime -= sleeptime; |
3437 | } |
3885 | } |
3438 | } |
3886 | } |
… | |
… | |
3452 | { |
3900 | { |
3453 | 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))); |
3454 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3902 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3455 | } |
3903 | } |
3456 | |
3904 | |
3457 | |
|
|
3458 | /* update ev_rt_now, do magic */ |
3905 | /* update ev_rt_now, do magic */ |
3459 | time_update (EV_A_ waittime + sleeptime); |
3906 | time_update (EV_A_ waittime + sleeptime); |
3460 | } |
3907 | } |
3461 | |
3908 | |
3462 | /* queue pending timers and reschedule them */ |
3909 | /* queue pending timers and reschedule them */ |
… | |
… | |
3470 | idle_reify (EV_A); |
3917 | idle_reify (EV_A); |
3471 | #endif |
3918 | #endif |
3472 | |
3919 | |
3473 | #if EV_CHECK_ENABLE |
3920 | #if EV_CHECK_ENABLE |
3474 | /* queue check watchers, to be executed first */ |
3921 | /* queue check watchers, to be executed first */ |
3475 | if (expect_false (checkcnt)) |
3922 | if (ecb_expect_false (checkcnt)) |
3476 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3923 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3477 | #endif |
3924 | #endif |
3478 | |
3925 | |
3479 | EV_INVOKE_PENDING; |
3926 | EV_INVOKE_PENDING; |
3480 | } |
3927 | } |
3481 | while (expect_true ( |
3928 | while (ecb_expect_true ( |
3482 | activecnt |
3929 | activecnt |
3483 | && !loop_done |
3930 | && !loop_done |
3484 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3931 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3485 | )); |
3932 | )); |
3486 | |
3933 | |
… | |
… | |
3493 | |
3940 | |
3494 | return activecnt; |
3941 | return activecnt; |
3495 | } |
3942 | } |
3496 | |
3943 | |
3497 | void |
3944 | void |
3498 | ev_break (EV_P_ int how) EV_THROW |
3945 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3499 | { |
3946 | { |
3500 | loop_done = how; |
3947 | loop_done = how; |
3501 | } |
3948 | } |
3502 | |
3949 | |
3503 | void |
3950 | void |
3504 | ev_ref (EV_P) EV_THROW |
3951 | ev_ref (EV_P) EV_NOEXCEPT |
3505 | { |
3952 | { |
3506 | ++activecnt; |
3953 | ++activecnt; |
3507 | } |
3954 | } |
3508 | |
3955 | |
3509 | void |
3956 | void |
3510 | ev_unref (EV_P) EV_THROW |
3957 | ev_unref (EV_P) EV_NOEXCEPT |
3511 | { |
3958 | { |
3512 | --activecnt; |
3959 | --activecnt; |
3513 | } |
3960 | } |
3514 | |
3961 | |
3515 | void |
3962 | void |
3516 | ev_now_update (EV_P) EV_THROW |
3963 | ev_now_update (EV_P) EV_NOEXCEPT |
3517 | { |
3964 | { |
3518 | time_update (EV_A_ 1e100); |
3965 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3519 | } |
3966 | } |
3520 | |
3967 | |
3521 | void |
3968 | void |
3522 | ev_suspend (EV_P) EV_THROW |
3969 | ev_suspend (EV_P) EV_NOEXCEPT |
3523 | { |
3970 | { |
3524 | ev_now_update (EV_A); |
3971 | ev_now_update (EV_A); |
3525 | } |
3972 | } |
3526 | |
3973 | |
3527 | void |
3974 | void |
3528 | ev_resume (EV_P) EV_THROW |
3975 | ev_resume (EV_P) EV_NOEXCEPT |
3529 | { |
3976 | { |
3530 | ev_tstamp mn_prev = mn_now; |
3977 | ev_tstamp mn_prev = mn_now; |
3531 | |
3978 | |
3532 | ev_now_update (EV_A); |
3979 | ev_now_update (EV_A); |
3533 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3980 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3550 | inline_size void |
3997 | inline_size void |
3551 | wlist_del (WL *head, WL elem) |
3998 | wlist_del (WL *head, WL elem) |
3552 | { |
3999 | { |
3553 | while (*head) |
4000 | while (*head) |
3554 | { |
4001 | { |
3555 | if (expect_true (*head == elem)) |
4002 | if (ecb_expect_true (*head == elem)) |
3556 | { |
4003 | { |
3557 | *head = elem->next; |
4004 | *head = elem->next; |
3558 | break; |
4005 | break; |
3559 | } |
4006 | } |
3560 | |
4007 | |
… | |
… | |
3572 | w->pending = 0; |
4019 | w->pending = 0; |
3573 | } |
4020 | } |
3574 | } |
4021 | } |
3575 | |
4022 | |
3576 | int |
4023 | int |
3577 | ev_clear_pending (EV_P_ void *w) EV_THROW |
4024 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3578 | { |
4025 | { |
3579 | W w_ = (W)w; |
4026 | W w_ = (W)w; |
3580 | int pending = w_->pending; |
4027 | int pending = w_->pending; |
3581 | |
4028 | |
3582 | if (expect_true (pending)) |
4029 | if (ecb_expect_true (pending)) |
3583 | { |
4030 | { |
3584 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4031 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3585 | p->w = (W)&pending_w; |
4032 | p->w = (W)&pending_w; |
3586 | w_->pending = 0; |
4033 | w_->pending = 0; |
3587 | return p->events; |
4034 | return p->events; |
… | |
… | |
3614 | w->active = 0; |
4061 | w->active = 0; |
3615 | } |
4062 | } |
3616 | |
4063 | |
3617 | /*****************************************************************************/ |
4064 | /*****************************************************************************/ |
3618 | |
4065 | |
3619 | void noinline |
4066 | ecb_noinline |
|
|
4067 | void |
3620 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
4068 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3621 | { |
4069 | { |
3622 | int fd = w->fd; |
4070 | int fd = w->fd; |
3623 | |
4071 | |
3624 | if (expect_false (ev_is_active (w))) |
4072 | if (ecb_expect_false (ev_is_active (w))) |
3625 | return; |
4073 | return; |
3626 | |
4074 | |
3627 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4075 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3628 | 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)))); |
3629 | |
4077 | |
|
|
4078 | #if EV_VERIFY >= 2 |
|
|
4079 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4080 | #endif |
3630 | EV_FREQUENT_CHECK; |
4081 | EV_FREQUENT_CHECK; |
3631 | |
4082 | |
3632 | ev_start (EV_A_ (W)w, 1); |
4083 | ev_start (EV_A_ (W)w, 1); |
3633 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4084 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3634 | wlist_add (&anfds[fd].head, (WL)w); |
4085 | wlist_add (&anfds[fd].head, (WL)w); |
3635 | |
4086 | |
3636 | /* common bug, apparently */ |
4087 | /* common bug, apparently */ |
3637 | 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)); |
3638 | |
4089 | |
… | |
… | |
3640 | w->events &= ~EV__IOFDSET; |
4091 | w->events &= ~EV__IOFDSET; |
3641 | |
4092 | |
3642 | EV_FREQUENT_CHECK; |
4093 | EV_FREQUENT_CHECK; |
3643 | } |
4094 | } |
3644 | |
4095 | |
3645 | void noinline |
4096 | ecb_noinline |
|
|
4097 | void |
3646 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
4098 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3647 | { |
4099 | { |
3648 | clear_pending (EV_A_ (W)w); |
4100 | clear_pending (EV_A_ (W)w); |
3649 | if (expect_false (!ev_is_active (w))) |
4101 | if (ecb_expect_false (!ev_is_active (w))) |
3650 | return; |
4102 | return; |
3651 | |
4103 | |
3652 | 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)); |
3653 | |
4105 | |
|
|
4106 | #if EV_VERIFY >= 2 |
|
|
4107 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4108 | #endif |
3654 | EV_FREQUENT_CHECK; |
4109 | EV_FREQUENT_CHECK; |
3655 | |
4110 | |
3656 | wlist_del (&anfds[w->fd].head, (WL)w); |
4111 | wlist_del (&anfds[w->fd].head, (WL)w); |
3657 | ev_stop (EV_A_ (W)w); |
4112 | ev_stop (EV_A_ (W)w); |
3658 | |
4113 | |
3659 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4114 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3660 | |
4115 | |
3661 | EV_FREQUENT_CHECK; |
4116 | EV_FREQUENT_CHECK; |
3662 | } |
4117 | } |
3663 | |
4118 | |
3664 | void noinline |
4119 | ecb_noinline |
|
|
4120 | void |
3665 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
4121 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3666 | { |
4122 | { |
3667 | if (expect_false (ev_is_active (w))) |
4123 | if (ecb_expect_false (ev_is_active (w))) |
3668 | return; |
4124 | return; |
3669 | |
4125 | |
3670 | ev_at (w) += mn_now; |
4126 | ev_at (w) += mn_now; |
3671 | |
4127 | |
3672 | 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.)); |
3673 | |
4129 | |
3674 | EV_FREQUENT_CHECK; |
4130 | EV_FREQUENT_CHECK; |
3675 | |
4131 | |
3676 | ++timercnt; |
4132 | ++timercnt; |
3677 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4133 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3678 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4134 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3679 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4135 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3680 | ANHE_at_cache (timers [ev_active (w)]); |
4136 | ANHE_at_cache (timers [ev_active (w)]); |
3681 | upheap (timers, ev_active (w)); |
4137 | upheap (timers, ev_active (w)); |
3682 | |
4138 | |
3683 | EV_FREQUENT_CHECK; |
4139 | EV_FREQUENT_CHECK; |
3684 | |
4140 | |
3685 | /*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));*/ |
3686 | } |
4142 | } |
3687 | |
4143 | |
3688 | void noinline |
4144 | ecb_noinline |
|
|
4145 | void |
3689 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
4146 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3690 | { |
4147 | { |
3691 | clear_pending (EV_A_ (W)w); |
4148 | clear_pending (EV_A_ (W)w); |
3692 | if (expect_false (!ev_is_active (w))) |
4149 | if (ecb_expect_false (!ev_is_active (w))) |
3693 | return; |
4150 | return; |
3694 | |
4151 | |
3695 | EV_FREQUENT_CHECK; |
4152 | EV_FREQUENT_CHECK; |
3696 | |
4153 | |
3697 | { |
4154 | { |
… | |
… | |
3699 | |
4156 | |
3700 | 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)); |
3701 | |
4158 | |
3702 | --timercnt; |
4159 | --timercnt; |
3703 | |
4160 | |
3704 | if (expect_true (active < timercnt + HEAP0)) |
4161 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3705 | { |
4162 | { |
3706 | timers [active] = timers [timercnt + HEAP0]; |
4163 | timers [active] = timers [timercnt + HEAP0]; |
3707 | adjustheap (timers, timercnt, active); |
4164 | adjustheap (timers, timercnt, active); |
3708 | } |
4165 | } |
3709 | } |
4166 | } |
… | |
… | |
3713 | ev_stop (EV_A_ (W)w); |
4170 | ev_stop (EV_A_ (W)w); |
3714 | |
4171 | |
3715 | EV_FREQUENT_CHECK; |
4172 | EV_FREQUENT_CHECK; |
3716 | } |
4173 | } |
3717 | |
4174 | |
3718 | void noinline |
4175 | ecb_noinline |
|
|
4176 | void |
3719 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4177 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3720 | { |
4178 | { |
3721 | EV_FREQUENT_CHECK; |
4179 | EV_FREQUENT_CHECK; |
3722 | |
4180 | |
3723 | clear_pending (EV_A_ (W)w); |
4181 | clear_pending (EV_A_ (W)w); |
3724 | |
4182 | |
… | |
… | |
3741 | |
4199 | |
3742 | EV_FREQUENT_CHECK; |
4200 | EV_FREQUENT_CHECK; |
3743 | } |
4201 | } |
3744 | |
4202 | |
3745 | ev_tstamp |
4203 | ev_tstamp |
3746 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4204 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3747 | { |
4205 | { |
3748 | 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.)); |
3749 | } |
4207 | } |
3750 | |
4208 | |
3751 | #if EV_PERIODIC_ENABLE |
4209 | #if EV_PERIODIC_ENABLE |
3752 | void noinline |
4210 | ecb_noinline |
|
|
4211 | void |
3753 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4212 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3754 | { |
4213 | { |
3755 | if (expect_false (ev_is_active (w))) |
4214 | if (ecb_expect_false (ev_is_active (w))) |
3756 | return; |
4215 | return; |
3757 | |
4216 | |
3758 | if (w->reschedule_cb) |
4217 | if (w->reschedule_cb) |
3759 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4218 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3760 | else if (w->interval) |
4219 | else if (w->interval) |
… | |
… | |
3767 | |
4226 | |
3768 | EV_FREQUENT_CHECK; |
4227 | EV_FREQUENT_CHECK; |
3769 | |
4228 | |
3770 | ++periodiccnt; |
4229 | ++periodiccnt; |
3771 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4230 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3772 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4231 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3773 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4232 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3774 | ANHE_at_cache (periodics [ev_active (w)]); |
4233 | ANHE_at_cache (periodics [ev_active (w)]); |
3775 | upheap (periodics, ev_active (w)); |
4234 | upheap (periodics, ev_active (w)); |
3776 | |
4235 | |
3777 | EV_FREQUENT_CHECK; |
4236 | EV_FREQUENT_CHECK; |
3778 | |
4237 | |
3779 | /*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));*/ |
3780 | } |
4239 | } |
3781 | |
4240 | |
3782 | void noinline |
4241 | ecb_noinline |
|
|
4242 | void |
3783 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4243 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3784 | { |
4244 | { |
3785 | clear_pending (EV_A_ (W)w); |
4245 | clear_pending (EV_A_ (W)w); |
3786 | if (expect_false (!ev_is_active (w))) |
4246 | if (ecb_expect_false (!ev_is_active (w))) |
3787 | return; |
4247 | return; |
3788 | |
4248 | |
3789 | EV_FREQUENT_CHECK; |
4249 | EV_FREQUENT_CHECK; |
3790 | |
4250 | |
3791 | { |
4251 | { |
… | |
… | |
3793 | |
4253 | |
3794 | 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)); |
3795 | |
4255 | |
3796 | --periodiccnt; |
4256 | --periodiccnt; |
3797 | |
4257 | |
3798 | if (expect_true (active < periodiccnt + HEAP0)) |
4258 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3799 | { |
4259 | { |
3800 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4260 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3801 | adjustheap (periodics, periodiccnt, active); |
4261 | adjustheap (periodics, periodiccnt, active); |
3802 | } |
4262 | } |
3803 | } |
4263 | } |
… | |
… | |
3805 | ev_stop (EV_A_ (W)w); |
4265 | ev_stop (EV_A_ (W)w); |
3806 | |
4266 | |
3807 | EV_FREQUENT_CHECK; |
4267 | EV_FREQUENT_CHECK; |
3808 | } |
4268 | } |
3809 | |
4269 | |
3810 | void noinline |
4270 | ecb_noinline |
|
|
4271 | void |
3811 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4272 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3812 | { |
4273 | { |
3813 | /* TODO: use adjustheap and recalculation */ |
4274 | /* TODO: use adjustheap and recalculation */ |
3814 | ev_periodic_stop (EV_A_ w); |
4275 | ev_periodic_stop (EV_A_ w); |
3815 | ev_periodic_start (EV_A_ w); |
4276 | ev_periodic_start (EV_A_ w); |
3816 | } |
4277 | } |
… | |
… | |
3820 | # define SA_RESTART 0 |
4281 | # define SA_RESTART 0 |
3821 | #endif |
4282 | #endif |
3822 | |
4283 | |
3823 | #if EV_SIGNAL_ENABLE |
4284 | #if EV_SIGNAL_ENABLE |
3824 | |
4285 | |
3825 | void noinline |
4286 | ecb_noinline |
|
|
4287 | void |
3826 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4288 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3827 | { |
4289 | { |
3828 | if (expect_false (ev_is_active (w))) |
4290 | if (ecb_expect_false (ev_is_active (w))) |
3829 | return; |
4291 | return; |
3830 | |
4292 | |
3831 | 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)); |
3832 | |
4294 | |
3833 | #if EV_MULTIPLICITY |
4295 | #if EV_MULTIPLICITY |
… | |
… | |
3902 | } |
4364 | } |
3903 | |
4365 | |
3904 | EV_FREQUENT_CHECK; |
4366 | EV_FREQUENT_CHECK; |
3905 | } |
4367 | } |
3906 | |
4368 | |
3907 | void noinline |
4369 | ecb_noinline |
|
|
4370 | void |
3908 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4371 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3909 | { |
4372 | { |
3910 | clear_pending (EV_A_ (W)w); |
4373 | clear_pending (EV_A_ (W)w); |
3911 | if (expect_false (!ev_is_active (w))) |
4374 | if (ecb_expect_false (!ev_is_active (w))) |
3912 | return; |
4375 | return; |
3913 | |
4376 | |
3914 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
3915 | |
4378 | |
3916 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4379 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3944 | #endif |
4407 | #endif |
3945 | |
4408 | |
3946 | #if EV_CHILD_ENABLE |
4409 | #if EV_CHILD_ENABLE |
3947 | |
4410 | |
3948 | void |
4411 | void |
3949 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4412 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3950 | { |
4413 | { |
3951 | #if EV_MULTIPLICITY |
4414 | #if EV_MULTIPLICITY |
3952 | 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)); |
3953 | #endif |
4416 | #endif |
3954 | if (expect_false (ev_is_active (w))) |
4417 | if (ecb_expect_false (ev_is_active (w))) |
3955 | return; |
4418 | return; |
3956 | |
4419 | |
3957 | EV_FREQUENT_CHECK; |
4420 | EV_FREQUENT_CHECK; |
3958 | |
4421 | |
3959 | ev_start (EV_A_ (W)w, 1); |
4422 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3961 | |
4424 | |
3962 | EV_FREQUENT_CHECK; |
4425 | EV_FREQUENT_CHECK; |
3963 | } |
4426 | } |
3964 | |
4427 | |
3965 | void |
4428 | void |
3966 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4429 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3967 | { |
4430 | { |
3968 | clear_pending (EV_A_ (W)w); |
4431 | clear_pending (EV_A_ (W)w); |
3969 | if (expect_false (!ev_is_active (w))) |
4432 | if (ecb_expect_false (!ev_is_active (w))) |
3970 | return; |
4433 | return; |
3971 | |
4434 | |
3972 | EV_FREQUENT_CHECK; |
4435 | EV_FREQUENT_CHECK; |
3973 | |
4436 | |
3974 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4437 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3988 | |
4451 | |
3989 | #define DEF_STAT_INTERVAL 5.0074891 |
4452 | #define DEF_STAT_INTERVAL 5.0074891 |
3990 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4453 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3991 | #define MIN_STAT_INTERVAL 0.1074891 |
4454 | #define MIN_STAT_INTERVAL 0.1074891 |
3992 | |
4455 | |
3993 | 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); |
3994 | |
4457 | |
3995 | #if EV_USE_INOTIFY |
4458 | #if EV_USE_INOTIFY |
3996 | |
4459 | |
3997 | /* 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 */ |
3998 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4461 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3999 | |
4462 | |
4000 | static void noinline |
4463 | ecb_noinline |
|
|
4464 | static void |
4001 | infy_add (EV_P_ ev_stat *w) |
4465 | infy_add (EV_P_ ev_stat *w) |
4002 | { |
4466 | { |
4003 | w->wd = inotify_add_watch (fs_fd, w->path, |
4467 | w->wd = inotify_add_watch (fs_fd, w->path, |
4004 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4468 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4005 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4469 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
4069 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4533 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4070 | ev_timer_again (EV_A_ &w->timer); |
4534 | ev_timer_again (EV_A_ &w->timer); |
4071 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4535 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4072 | } |
4536 | } |
4073 | |
4537 | |
4074 | static void noinline |
4538 | ecb_noinline |
|
|
4539 | static void |
4075 | infy_del (EV_P_ ev_stat *w) |
4540 | infy_del (EV_P_ ev_stat *w) |
4076 | { |
4541 | { |
4077 | int slot; |
4542 | int slot; |
4078 | int wd = w->wd; |
4543 | int wd = w->wd; |
4079 | |
4544 | |
… | |
… | |
4086 | |
4551 | |
4087 | /* remove this watcher, if others are watching it, they will rearm */ |
4552 | /* remove this watcher, if others are watching it, they will rearm */ |
4088 | inotify_rm_watch (fs_fd, wd); |
4553 | inotify_rm_watch (fs_fd, wd); |
4089 | } |
4554 | } |
4090 | |
4555 | |
4091 | static void noinline |
4556 | ecb_noinline |
|
|
4557 | static void |
4092 | 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) |
4093 | { |
4559 | { |
4094 | if (slot < 0) |
4560 | if (slot < 0) |
4095 | /* overflow, need to check for all hash slots */ |
4561 | /* overflow, need to check for all hash slots */ |
4096 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4562 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4132 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4598 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4133 | ofs += sizeof (struct inotify_event) + ev->len; |
4599 | ofs += sizeof (struct inotify_event) + ev->len; |
4134 | } |
4600 | } |
4135 | } |
4601 | } |
4136 | |
4602 | |
4137 | inline_size void ecb_cold |
4603 | inline_size ecb_cold |
|
|
4604 | void |
4138 | ev_check_2625 (EV_P) |
4605 | ev_check_2625 (EV_P) |
4139 | { |
4606 | { |
4140 | /* kernels < 2.6.25 are borked |
4607 | /* kernels < 2.6.25 are borked |
4141 | * 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 |
4142 | */ |
4609 | */ |
… | |
… | |
4232 | #else |
4699 | #else |
4233 | # define EV_LSTAT(p,b) lstat (p, b) |
4700 | # define EV_LSTAT(p,b) lstat (p, b) |
4234 | #endif |
4701 | #endif |
4235 | |
4702 | |
4236 | void |
4703 | void |
4237 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4704 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4238 | { |
4705 | { |
4239 | if (lstat (w->path, &w->attr) < 0) |
4706 | if (lstat (w->path, &w->attr) < 0) |
4240 | w->attr.st_nlink = 0; |
4707 | w->attr.st_nlink = 0; |
4241 | else if (!w->attr.st_nlink) |
4708 | else if (!w->attr.st_nlink) |
4242 | w->attr.st_nlink = 1; |
4709 | w->attr.st_nlink = 1; |
4243 | } |
4710 | } |
4244 | |
4711 | |
4245 | static void noinline |
4712 | ecb_noinline |
|
|
4713 | static void |
4246 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4714 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4247 | { |
4715 | { |
4248 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4716 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4249 | |
4717 | |
4250 | ev_statdata prev = w->attr; |
4718 | ev_statdata prev = w->attr; |
… | |
… | |
4281 | ev_feed_event (EV_A_ w, EV_STAT); |
4749 | ev_feed_event (EV_A_ w, EV_STAT); |
4282 | } |
4750 | } |
4283 | } |
4751 | } |
4284 | |
4752 | |
4285 | void |
4753 | void |
4286 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4754 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4287 | { |
4755 | { |
4288 | if (expect_false (ev_is_active (w))) |
4756 | if (ecb_expect_false (ev_is_active (w))) |
4289 | return; |
4757 | return; |
4290 | |
4758 | |
4291 | ev_stat_stat (EV_A_ w); |
4759 | ev_stat_stat (EV_A_ w); |
4292 | |
4760 | |
4293 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4761 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4312 | |
4780 | |
4313 | EV_FREQUENT_CHECK; |
4781 | EV_FREQUENT_CHECK; |
4314 | } |
4782 | } |
4315 | |
4783 | |
4316 | void |
4784 | void |
4317 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4785 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4318 | { |
4786 | { |
4319 | clear_pending (EV_A_ (W)w); |
4787 | clear_pending (EV_A_ (W)w); |
4320 | if (expect_false (!ev_is_active (w))) |
4788 | if (ecb_expect_false (!ev_is_active (w))) |
4321 | return; |
4789 | return; |
4322 | |
4790 | |
4323 | EV_FREQUENT_CHECK; |
4791 | EV_FREQUENT_CHECK; |
4324 | |
4792 | |
4325 | #if EV_USE_INOTIFY |
4793 | #if EV_USE_INOTIFY |
… | |
… | |
4338 | } |
4806 | } |
4339 | #endif |
4807 | #endif |
4340 | |
4808 | |
4341 | #if EV_IDLE_ENABLE |
4809 | #if EV_IDLE_ENABLE |
4342 | void |
4810 | void |
4343 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4811 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4344 | { |
4812 | { |
4345 | if (expect_false (ev_is_active (w))) |
4813 | if (ecb_expect_false (ev_is_active (w))) |
4346 | return; |
4814 | return; |
4347 | |
4815 | |
4348 | pri_adjust (EV_A_ (W)w); |
4816 | pri_adjust (EV_A_ (W)w); |
4349 | |
4817 | |
4350 | EV_FREQUENT_CHECK; |
4818 | EV_FREQUENT_CHECK; |
… | |
… | |
4353 | int active = ++idlecnt [ABSPRI (w)]; |
4821 | int active = ++idlecnt [ABSPRI (w)]; |
4354 | |
4822 | |
4355 | ++idleall; |
4823 | ++idleall; |
4356 | ev_start (EV_A_ (W)w, active); |
4824 | ev_start (EV_A_ (W)w, active); |
4357 | |
4825 | |
4358 | 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); |
4359 | idles [ABSPRI (w)][active - 1] = w; |
4827 | idles [ABSPRI (w)][active - 1] = w; |
4360 | } |
4828 | } |
4361 | |
4829 | |
4362 | EV_FREQUENT_CHECK; |
4830 | EV_FREQUENT_CHECK; |
4363 | } |
4831 | } |
4364 | |
4832 | |
4365 | void |
4833 | void |
4366 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4834 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4367 | { |
4835 | { |
4368 | clear_pending (EV_A_ (W)w); |
4836 | clear_pending (EV_A_ (W)w); |
4369 | if (expect_false (!ev_is_active (w))) |
4837 | if (ecb_expect_false (!ev_is_active (w))) |
4370 | return; |
4838 | return; |
4371 | |
4839 | |
4372 | EV_FREQUENT_CHECK; |
4840 | EV_FREQUENT_CHECK; |
4373 | |
4841 | |
4374 | { |
4842 | { |
… | |
… | |
4385 | } |
4853 | } |
4386 | #endif |
4854 | #endif |
4387 | |
4855 | |
4388 | #if EV_PREPARE_ENABLE |
4856 | #if EV_PREPARE_ENABLE |
4389 | void |
4857 | void |
4390 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4858 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4391 | { |
4859 | { |
4392 | if (expect_false (ev_is_active (w))) |
4860 | if (ecb_expect_false (ev_is_active (w))) |
4393 | return; |
4861 | return; |
4394 | |
4862 | |
4395 | EV_FREQUENT_CHECK; |
4863 | EV_FREQUENT_CHECK; |
4396 | |
4864 | |
4397 | ev_start (EV_A_ (W)w, ++preparecnt); |
4865 | ev_start (EV_A_ (W)w, ++preparecnt); |
4398 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4866 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4399 | prepares [preparecnt - 1] = w; |
4867 | prepares [preparecnt - 1] = w; |
4400 | |
4868 | |
4401 | EV_FREQUENT_CHECK; |
4869 | EV_FREQUENT_CHECK; |
4402 | } |
4870 | } |
4403 | |
4871 | |
4404 | void |
4872 | void |
4405 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4873 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4406 | { |
4874 | { |
4407 | clear_pending (EV_A_ (W)w); |
4875 | clear_pending (EV_A_ (W)w); |
4408 | if (expect_false (!ev_is_active (w))) |
4876 | if (ecb_expect_false (!ev_is_active (w))) |
4409 | return; |
4877 | return; |
4410 | |
4878 | |
4411 | EV_FREQUENT_CHECK; |
4879 | EV_FREQUENT_CHECK; |
4412 | |
4880 | |
4413 | { |
4881 | { |
… | |
… | |
4423 | } |
4891 | } |
4424 | #endif |
4892 | #endif |
4425 | |
4893 | |
4426 | #if EV_CHECK_ENABLE |
4894 | #if EV_CHECK_ENABLE |
4427 | void |
4895 | void |
4428 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4896 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4429 | { |
4897 | { |
4430 | if (expect_false (ev_is_active (w))) |
4898 | if (ecb_expect_false (ev_is_active (w))) |
4431 | return; |
4899 | return; |
4432 | |
4900 | |
4433 | EV_FREQUENT_CHECK; |
4901 | EV_FREQUENT_CHECK; |
4434 | |
4902 | |
4435 | ev_start (EV_A_ (W)w, ++checkcnt); |
4903 | ev_start (EV_A_ (W)w, ++checkcnt); |
4436 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4904 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4437 | checks [checkcnt - 1] = w; |
4905 | checks [checkcnt - 1] = w; |
4438 | |
4906 | |
4439 | EV_FREQUENT_CHECK; |
4907 | EV_FREQUENT_CHECK; |
4440 | } |
4908 | } |
4441 | |
4909 | |
4442 | void |
4910 | void |
4443 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4911 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4444 | { |
4912 | { |
4445 | clear_pending (EV_A_ (W)w); |
4913 | clear_pending (EV_A_ (W)w); |
4446 | if (expect_false (!ev_is_active (w))) |
4914 | if (ecb_expect_false (!ev_is_active (w))) |
4447 | return; |
4915 | return; |
4448 | |
4916 | |
4449 | EV_FREQUENT_CHECK; |
4917 | EV_FREQUENT_CHECK; |
4450 | |
4918 | |
4451 | { |
4919 | { |
… | |
… | |
4460 | EV_FREQUENT_CHECK; |
4928 | EV_FREQUENT_CHECK; |
4461 | } |
4929 | } |
4462 | #endif |
4930 | #endif |
4463 | |
4931 | |
4464 | #if EV_EMBED_ENABLE |
4932 | #if EV_EMBED_ENABLE |
4465 | void noinline |
4933 | ecb_noinline |
|
|
4934 | void |
4466 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4935 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4467 | { |
4936 | { |
4468 | ev_run (w->other, EVRUN_NOWAIT); |
4937 | ev_run (w->other, EVRUN_NOWAIT); |
4469 | } |
4938 | } |
4470 | |
4939 | |
4471 | static void |
4940 | static void |
… | |
… | |
4519 | ev_idle_stop (EV_A_ idle); |
4988 | ev_idle_stop (EV_A_ idle); |
4520 | } |
4989 | } |
4521 | #endif |
4990 | #endif |
4522 | |
4991 | |
4523 | void |
4992 | void |
4524 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4993 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4525 | { |
4994 | { |
4526 | if (expect_false (ev_is_active (w))) |
4995 | if (ecb_expect_false (ev_is_active (w))) |
4527 | return; |
4996 | return; |
4528 | |
4997 | |
4529 | { |
4998 | { |
4530 | EV_P = w->other; |
4999 | EV_P = w->other; |
4531 | 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 ())); |
… | |
… | |
4550 | |
5019 | |
4551 | EV_FREQUENT_CHECK; |
5020 | EV_FREQUENT_CHECK; |
4552 | } |
5021 | } |
4553 | |
5022 | |
4554 | void |
5023 | void |
4555 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
5024 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4556 | { |
5025 | { |
4557 | clear_pending (EV_A_ (W)w); |
5026 | clear_pending (EV_A_ (W)w); |
4558 | if (expect_false (!ev_is_active (w))) |
5027 | if (ecb_expect_false (!ev_is_active (w))) |
4559 | return; |
5028 | return; |
4560 | |
5029 | |
4561 | EV_FREQUENT_CHECK; |
5030 | EV_FREQUENT_CHECK; |
4562 | |
5031 | |
4563 | ev_io_stop (EV_A_ &w->io); |
5032 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
4570 | } |
5039 | } |
4571 | #endif |
5040 | #endif |
4572 | |
5041 | |
4573 | #if EV_FORK_ENABLE |
5042 | #if EV_FORK_ENABLE |
4574 | void |
5043 | void |
4575 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
5044 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4576 | { |
5045 | { |
4577 | if (expect_false (ev_is_active (w))) |
5046 | if (ecb_expect_false (ev_is_active (w))) |
4578 | return; |
5047 | return; |
4579 | |
5048 | |
4580 | EV_FREQUENT_CHECK; |
5049 | EV_FREQUENT_CHECK; |
4581 | |
5050 | |
4582 | ev_start (EV_A_ (W)w, ++forkcnt); |
5051 | ev_start (EV_A_ (W)w, ++forkcnt); |
4583 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5052 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4584 | forks [forkcnt - 1] = w; |
5053 | forks [forkcnt - 1] = w; |
4585 | |
5054 | |
4586 | EV_FREQUENT_CHECK; |
5055 | EV_FREQUENT_CHECK; |
4587 | } |
5056 | } |
4588 | |
5057 | |
4589 | void |
5058 | void |
4590 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
5059 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4591 | { |
5060 | { |
4592 | clear_pending (EV_A_ (W)w); |
5061 | clear_pending (EV_A_ (W)w); |
4593 | if (expect_false (!ev_is_active (w))) |
5062 | if (ecb_expect_false (!ev_is_active (w))) |
4594 | return; |
5063 | return; |
4595 | |
5064 | |
4596 | EV_FREQUENT_CHECK; |
5065 | EV_FREQUENT_CHECK; |
4597 | |
5066 | |
4598 | { |
5067 | { |
… | |
… | |
4608 | } |
5077 | } |
4609 | #endif |
5078 | #endif |
4610 | |
5079 | |
4611 | #if EV_CLEANUP_ENABLE |
5080 | #if EV_CLEANUP_ENABLE |
4612 | void |
5081 | void |
4613 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
5082 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4614 | { |
5083 | { |
4615 | if (expect_false (ev_is_active (w))) |
5084 | if (ecb_expect_false (ev_is_active (w))) |
4616 | return; |
5085 | return; |
4617 | |
5086 | |
4618 | EV_FREQUENT_CHECK; |
5087 | EV_FREQUENT_CHECK; |
4619 | |
5088 | |
4620 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5089 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4621 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5090 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4622 | cleanups [cleanupcnt - 1] = w; |
5091 | cleanups [cleanupcnt - 1] = w; |
4623 | |
5092 | |
4624 | /* cleanup watchers should never keep a refcount on the loop */ |
5093 | /* cleanup watchers should never keep a refcount on the loop */ |
4625 | ev_unref (EV_A); |
5094 | ev_unref (EV_A); |
4626 | EV_FREQUENT_CHECK; |
5095 | EV_FREQUENT_CHECK; |
4627 | } |
5096 | } |
4628 | |
5097 | |
4629 | void |
5098 | void |
4630 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
5099 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4631 | { |
5100 | { |
4632 | clear_pending (EV_A_ (W)w); |
5101 | clear_pending (EV_A_ (W)w); |
4633 | if (expect_false (!ev_is_active (w))) |
5102 | if (ecb_expect_false (!ev_is_active (w))) |
4634 | return; |
5103 | return; |
4635 | |
5104 | |
4636 | EV_FREQUENT_CHECK; |
5105 | EV_FREQUENT_CHECK; |
4637 | ev_ref (EV_A); |
5106 | ev_ref (EV_A); |
4638 | |
5107 | |
… | |
… | |
4649 | } |
5118 | } |
4650 | #endif |
5119 | #endif |
4651 | |
5120 | |
4652 | #if EV_ASYNC_ENABLE |
5121 | #if EV_ASYNC_ENABLE |
4653 | void |
5122 | void |
4654 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
5123 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4655 | { |
5124 | { |
4656 | if (expect_false (ev_is_active (w))) |
5125 | if (ecb_expect_false (ev_is_active (w))) |
4657 | return; |
5126 | return; |
4658 | |
5127 | |
4659 | w->sent = 0; |
5128 | w->sent = 0; |
4660 | |
5129 | |
4661 | evpipe_init (EV_A); |
5130 | evpipe_init (EV_A); |
4662 | |
5131 | |
4663 | EV_FREQUENT_CHECK; |
5132 | EV_FREQUENT_CHECK; |
4664 | |
5133 | |
4665 | ev_start (EV_A_ (W)w, ++asynccnt); |
5134 | ev_start (EV_A_ (W)w, ++asynccnt); |
4666 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5135 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4667 | asyncs [asynccnt - 1] = w; |
5136 | asyncs [asynccnt - 1] = w; |
4668 | |
5137 | |
4669 | EV_FREQUENT_CHECK; |
5138 | EV_FREQUENT_CHECK; |
4670 | } |
5139 | } |
4671 | |
5140 | |
4672 | void |
5141 | void |
4673 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
5142 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4674 | { |
5143 | { |
4675 | clear_pending (EV_A_ (W)w); |
5144 | clear_pending (EV_A_ (W)w); |
4676 | if (expect_false (!ev_is_active (w))) |
5145 | if (ecb_expect_false (!ev_is_active (w))) |
4677 | return; |
5146 | return; |
4678 | |
5147 | |
4679 | EV_FREQUENT_CHECK; |
5148 | EV_FREQUENT_CHECK; |
4680 | |
5149 | |
4681 | { |
5150 | { |
… | |
… | |
4689 | |
5158 | |
4690 | EV_FREQUENT_CHECK; |
5159 | EV_FREQUENT_CHECK; |
4691 | } |
5160 | } |
4692 | |
5161 | |
4693 | void |
5162 | void |
4694 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5163 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4695 | { |
5164 | { |
4696 | w->sent = 1; |
5165 | w->sent = 1; |
4697 | evpipe_write (EV_A_ &async_pending); |
5166 | evpipe_write (EV_A_ &async_pending); |
4698 | } |
5167 | } |
4699 | #endif |
5168 | #endif |
… | |
… | |
4736 | |
5205 | |
4737 | 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)); |
4738 | } |
5207 | } |
4739 | |
5208 | |
4740 | void |
5209 | void |
4741 | 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 |
4742 | { |
5211 | { |
4743 | 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)); |
4744 | |
|
|
4745 | if (expect_false (!once)) |
|
|
4746 | { |
|
|
4747 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4748 | return; |
|
|
4749 | } |
|
|
4750 | |
5213 | |
4751 | once->cb = cb; |
5214 | once->cb = cb; |
4752 | once->arg = arg; |
5215 | once->arg = arg; |
4753 | |
5216 | |
4754 | ev_init (&once->io, once_cb_io); |
5217 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4767 | } |
5230 | } |
4768 | |
5231 | |
4769 | /*****************************************************************************/ |
5232 | /*****************************************************************************/ |
4770 | |
5233 | |
4771 | #if EV_WALK_ENABLE |
5234 | #if EV_WALK_ENABLE |
4772 | void ecb_cold |
5235 | ecb_cold |
|
|
5236 | void |
4773 | 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 |
4774 | { |
5238 | { |
4775 | int i, j; |
5239 | int i, j; |
4776 | ev_watcher_list *wl, *wn; |
5240 | ev_watcher_list *wl, *wn; |
4777 | |
5241 | |
4778 | if (types & (EV_IO | EV_EMBED)) |
5242 | if (types & (EV_IO | EV_EMBED)) |