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 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 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 | * |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
188 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
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189 | # undef EV_NO_SMP |
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190 | # define EV_NO_SMP 1 |
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191 | # undef ECB_NO_THREADS |
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192 | # define ECB_NO_THREADS 1 |
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193 | #endif |
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194 | #if EV_NO_SMP |
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195 | # undef EV_NO_SMP |
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196 | # define ECB_NO_SMP 1 |
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197 | #endif |
189 | |
198 | |
190 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
200 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
193 | # include <unistd.h> |
202 | # include <unistd.h> |
194 | #else |
203 | #else |
195 | # include <io.h> |
204 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
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|
206 | # include <winsock2.h> |
197 | # include <windows.h> |
207 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
210 | # endif |
201 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
211 | |
221 | |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
213 | |
223 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
216 | /* use what's provided */ |
226 | /* use what's provided */ |
217 | #elif defined (NSIG) |
227 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
245 | #else |
236 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
237 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
238 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
… | |
… | |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
261 | # endif |
252 | #endif |
262 | #endif |
253 | |
263 | |
254 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
267 | # else |
258 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
269 | # endif |
260 | #endif |
270 | #endif |
… | |
… | |
347 | |
357 | |
348 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
360 | #endif |
351 | |
361 | |
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362 | #ifdef ANDROID |
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363 | /* supposedly, android doesn't typedef fd_mask */ |
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364 | # undef EV_USE_SELECT |
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365 | # define EV_USE_SELECT 0 |
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366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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367 | # undef EV_USE_CLOCK_SYSCALL |
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368 | # define EV_USE_CLOCK_SYSCALL 0 |
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369 | #endif |
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370 | |
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371 | /* aix's poll.h seems to cause lots of trouble */ |
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372 | #ifdef _AIX |
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373 | /* AIX has a completely broken poll.h header */ |
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374 | # undef EV_USE_POLL |
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375 | # define EV_USE_POLL 0 |
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376 | #endif |
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377 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
353 | /* which makes programs even slower. might work on other unices, too. */ |
379 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
380 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
381 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
382 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
385 | # define EV_USE_MONOTONIC 1 |
360 | # else |
386 | # else |
… | |
… | |
363 | # endif |
389 | # endif |
364 | #endif |
390 | #endif |
365 | |
391 | |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
392 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
367 | |
393 | |
368 | #ifdef _AIX |
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369 | /* AIX has a completely broken poll.h header */ |
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370 | # undef EV_USE_POLL |
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371 | # define EV_USE_POLL 0 |
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372 | #endif |
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373 | |
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374 | #ifndef CLOCK_MONOTONIC |
394 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
395 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
396 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
397 | #endif |
378 | |
398 | |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
406 | # define EV_USE_INOTIFY 0 |
387 | #endif |
407 | #endif |
388 | |
408 | |
389 | #if !EV_USE_NANOSLEEP |
409 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
410 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
411 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
412 | # include <sys/select.h> |
393 | # endif |
413 | # endif |
394 | #endif |
414 | #endif |
395 | |
415 | |
396 | #if EV_USE_INOTIFY |
416 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
419 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
420 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
421 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
422 | # define EV_USE_INOTIFY 0 |
403 | # endif |
423 | # endif |
404 | #endif |
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405 | |
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406 | #if EV_SELECT_IS_WINSOCKET |
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407 | # include <winsock.h> |
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408 | #endif |
424 | #endif |
409 | |
425 | |
410 | #if EV_USE_EVENTFD |
426 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
428 | # include <stdint.h> |
… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
480 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
481 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
482 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
483 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
484 | |
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485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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486 | /* ECB.H BEGIN */ |
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487 | /* |
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488 | * libecb - http://software.schmorp.de/pkg/libecb |
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489 | * |
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490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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491 | * Copyright (©) 2011 Emanuele Giaquinta |
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492 | * All rights reserved. |
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493 | * |
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494 | * Redistribution and use in source and binary forms, with or without modifica- |
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495 | * tion, are permitted provided that the following conditions are met: |
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496 | * |
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497 | * 1. Redistributions of source code must retain the above copyright notice, |
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498 | * this list of conditions and the following disclaimer. |
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499 | * |
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500 | * 2. Redistributions in binary form must reproduce the above copyright |
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501 | * notice, this list of conditions and the following disclaimer in the |
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502 | * documentation and/or other materials provided with the distribution. |
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503 | * |
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504 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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505 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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506 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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507 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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508 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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509 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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513 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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514 | */ |
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515 | |
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516 | #ifndef ECB_H |
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517 | #define ECB_H |
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518 | |
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519 | /* 16 bits major, 16 bits minor */ |
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520 | #define ECB_VERSION 0x00010003 |
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521 | |
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522 | #ifdef _WIN32 |
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523 | typedef signed char int8_t; |
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524 | typedef unsigned char uint8_t; |
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525 | typedef signed short int16_t; |
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526 | typedef unsigned short uint16_t; |
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527 | typedef signed int int32_t; |
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528 | typedef unsigned int uint32_t; |
469 | #if __GNUC__ >= 4 |
529 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
530 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
531 | typedef unsigned long long uint64_t; |
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532 | #else /* _MSC_VER || __BORLANDC__ */ |
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533 | typedef signed __int64 int64_t; |
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534 | typedef unsigned __int64 uint64_t; |
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535 | #endif |
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536 | #ifdef _WIN64 |
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537 | #define ECB_PTRSIZE 8 |
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538 | typedef uint64_t uintptr_t; |
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539 | typedef int64_t intptr_t; |
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540 | #else |
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541 | #define ECB_PTRSIZE 4 |
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542 | typedef uint32_t uintptr_t; |
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543 | typedef int32_t intptr_t; |
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544 | #endif |
472 | #else |
545 | #else |
473 | # define expect(expr,value) (expr) |
546 | #include <inttypes.h> |
474 | # define noinline |
547 | #if UINTMAX_MAX > 0xffffffffU |
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
548 | #define ECB_PTRSIZE 8 |
476 | # define inline |
549 | #else |
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550 | #define ECB_PTRSIZE 4 |
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551 | #endif |
477 | # endif |
552 | #endif |
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553 | |
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554 | /* work around x32 idiocy by defining proper macros */ |
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555 | #if __x86_64 || _M_AMD64 |
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556 | #if _ILP32 |
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557 | #define ECB_AMD64_X32 1 |
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558 | #else |
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559 | #define ECB_AMD64 1 |
478 | #endif |
560 | #endif |
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561 | #endif |
479 | |
562 | |
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563 | /* many compilers define _GNUC_ to some versions but then only implement |
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564 | * what their idiot authors think are the "more important" extensions, |
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565 | * causing enormous grief in return for some better fake benchmark numbers. |
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566 | * or so. |
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567 | * we try to detect these and simply assume they are not gcc - if they have |
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568 | * an issue with that they should have done it right in the first place. |
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569 | */ |
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570 | #ifndef ECB_GCC_VERSION |
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571 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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572 | #define ECB_GCC_VERSION(major,minor) 0 |
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573 | #else |
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574 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
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575 | #endif |
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576 | #endif |
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577 | |
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578 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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580 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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581 | #define ECB_CPP (__cplusplus+0) |
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582 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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583 | |
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584 | #if ECB_CPP |
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585 | #define ECB_EXTERN_C extern "C" |
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586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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587 | #define ECB_EXTERN_C_END } |
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588 | #else |
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589 | #define ECB_EXTERN_C extern |
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590 | #define ECB_EXTERN_C_BEG |
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591 | #define ECB_EXTERN_C_END |
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592 | #endif |
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593 | |
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594 | /*****************************************************************************/ |
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595 | |
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596 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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597 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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598 | |
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599 | #if ECB_NO_THREADS |
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600 | #define ECB_NO_SMP 1 |
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601 | #endif |
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602 | |
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603 | #if ECB_NO_SMP |
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604 | #define ECB_MEMORY_FENCE do { } while (0) |
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605 | #endif |
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606 | |
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607 | #ifndef ECB_MEMORY_FENCE |
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608 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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609 | #if __i386 || __i386__ |
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610 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
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611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
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614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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625 | #elif __sparc || __sparc__ |
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626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
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627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
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629 | #elif defined __s390__ || defined __s390x__ |
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630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
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631 | #elif defined __mips__ |
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632 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
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633 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
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634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
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635 | #elif defined __alpha__ |
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636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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637 | #elif defined __hppa__ |
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638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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639 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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640 | #elif defined __ia64__ |
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641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
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642 | #elif defined __m68k__ |
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643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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644 | #elif defined __m88k__ |
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|
645 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
646 | #elif defined __sh__ |
|
|
647 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
648 | #endif |
|
|
649 | #endif |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #ifndef ECB_MEMORY_FENCE |
|
|
653 | #if ECB_GCC_VERSION(4,7) |
|
|
654 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
655 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
656 | |
|
|
657 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
658 | * without risking compile time errors with other compilers. We *could* |
|
|
659 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
660 | * around this shit time and again. |
|
|
661 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
662 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
663 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
664 | */ |
|
|
665 | |
|
|
666 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
667 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
668 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
669 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
670 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
671 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
672 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
673 | #elif defined _WIN32 |
|
|
674 | #include <WinNT.h> |
|
|
675 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
676 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
677 | #include <mbarrier.h> |
|
|
678 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
679 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
680 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
681 | #elif __xlC__ |
|
|
682 | #define ECB_MEMORY_FENCE __sync () |
|
|
683 | #endif |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #ifndef ECB_MEMORY_FENCE |
|
|
687 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
688 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
689 | /* not just C11 atomics and atomic accesses */ |
|
|
690 | #include <stdatomic.h> |
|
|
691 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
692 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
693 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
694 | /* for most usages, or gcc and clang have a bug */ |
|
|
695 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
696 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
697 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
698 | #endif |
|
|
699 | #endif |
|
|
700 | |
|
|
701 | #ifndef ECB_MEMORY_FENCE |
|
|
702 | #if !ECB_AVOID_PTHREADS |
|
|
703 | /* |
|
|
704 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
705 | * or failure to find pthread.h, then you should implement |
|
|
706 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
707 | * OR provide pthread.h and link against the posix thread library |
|
|
708 | * of your system. |
|
|
709 | */ |
|
|
710 | #include <pthread.h> |
|
|
711 | #define ECB_NEEDS_PTHREADS 1 |
|
|
712 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
713 | |
|
|
714 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
715 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
716 | #endif |
|
|
717 | #endif |
|
|
718 | |
|
|
719 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
720 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
721 | #endif |
|
|
722 | |
|
|
723 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
725 | #endif |
|
|
726 | |
|
|
727 | /*****************************************************************************/ |
|
|
728 | |
|
|
729 | #if __cplusplus |
|
|
730 | #define ecb_inline static inline |
|
|
731 | #elif ECB_GCC_VERSION(2,5) |
|
|
732 | #define ecb_inline static __inline__ |
|
|
733 | #elif ECB_C99 |
|
|
734 | #define ecb_inline static inline |
|
|
735 | #else |
|
|
736 | #define ecb_inline static |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if ECB_GCC_VERSION(3,3) |
|
|
740 | #define ecb_restrict __restrict__ |
|
|
741 | #elif ECB_C99 |
|
|
742 | #define ecb_restrict restrict |
|
|
743 | #else |
|
|
744 | #define ecb_restrict |
|
|
745 | #endif |
|
|
746 | |
|
|
747 | typedef int ecb_bool; |
|
|
748 | |
|
|
749 | #define ECB_CONCAT_(a, b) a ## b |
|
|
750 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
751 | #define ECB_STRINGIFY_(a) # a |
|
|
752 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
753 | |
|
|
754 | #define ecb_function_ ecb_inline |
|
|
755 | |
|
|
756 | #if ECB_GCC_VERSION(3,1) |
|
|
757 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
758 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
759 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
760 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
761 | #else |
|
|
762 | #define ecb_attribute(attrlist) |
|
|
763 | #define ecb_is_constant(expr) 0 |
|
|
764 | #define ecb_expect(expr,value) (expr) |
|
|
765 | #define ecb_prefetch(addr,rw,locality) |
|
|
766 | #endif |
|
|
767 | |
|
|
768 | /* no emulation for ecb_decltype */ |
|
|
769 | #if ECB_GCC_VERSION(4,5) |
|
|
770 | #define ecb_decltype(x) __decltype(x) |
|
|
771 | #elif ECB_GCC_VERSION(3,0) |
|
|
772 | #define ecb_decltype(x) __typeof(x) |
|
|
773 | #endif |
|
|
774 | |
|
|
775 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
776 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
777 | #define ecb_const ecb_attribute ((__const__)) |
|
|
778 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
779 | |
|
|
780 | #if ECB_C11 |
|
|
781 | #define ecb_noreturn _Noreturn |
|
|
782 | #else |
|
|
783 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
784 | #endif |
|
|
785 | |
|
|
786 | #if ECB_GCC_VERSION(4,3) |
|
|
787 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
788 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
789 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
790 | #else |
|
|
791 | #define ecb_artificial |
|
|
792 | #define ecb_hot |
|
|
793 | #define ecb_cold |
|
|
794 | #endif |
|
|
795 | |
|
|
796 | /* put around conditional expressions if you are very sure that the */ |
|
|
797 | /* expression is mostly true or mostly false. note that these return */ |
|
|
798 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
799 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
800 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
801 | /* for compatibility to the rest of the world */ |
|
|
802 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
803 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
804 | |
|
|
805 | /* count trailing zero bits and count # of one bits */ |
|
|
806 | #if ECB_GCC_VERSION(3,4) |
|
|
807 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
808 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
809 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
810 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
811 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
812 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
813 | /* no popcountll */ |
|
|
814 | #else |
|
|
815 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
816 | ecb_function_ int |
|
|
817 | ecb_ctz32 (uint32_t x) |
|
|
818 | { |
|
|
819 | int r = 0; |
|
|
820 | |
|
|
821 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
822 | |
|
|
823 | #if ECB_branchless_on_i386 |
|
|
824 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
825 | r += !!(x & 0xcccccccc) << 1; |
|
|
826 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
827 | r += !!(x & 0xff00ff00) << 3; |
|
|
828 | r += !!(x & 0xffff0000) << 4; |
|
|
829 | #else |
|
|
830 | if (x & 0xaaaaaaaa) r += 1; |
|
|
831 | if (x & 0xcccccccc) r += 2; |
|
|
832 | if (x & 0xf0f0f0f0) r += 4; |
|
|
833 | if (x & 0xff00ff00) r += 8; |
|
|
834 | if (x & 0xffff0000) r += 16; |
|
|
835 | #endif |
|
|
836 | |
|
|
837 | return r; |
|
|
838 | } |
|
|
839 | |
|
|
840 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
841 | ecb_function_ int |
|
|
842 | ecb_ctz64 (uint64_t x) |
|
|
843 | { |
|
|
844 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
845 | return ecb_ctz32 (x >> shift) + shift; |
|
|
846 | } |
|
|
847 | |
|
|
848 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
849 | ecb_function_ int |
|
|
850 | ecb_popcount32 (uint32_t x) |
|
|
851 | { |
|
|
852 | x -= (x >> 1) & 0x55555555; |
|
|
853 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
854 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
855 | x *= 0x01010101; |
|
|
856 | |
|
|
857 | return x >> 24; |
|
|
858 | } |
|
|
859 | |
|
|
860 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
861 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
862 | { |
|
|
863 | int r = 0; |
|
|
864 | |
|
|
865 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
866 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
867 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
868 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
869 | if (x >> 1) { r += 1; } |
|
|
870 | |
|
|
871 | return r; |
|
|
872 | } |
|
|
873 | |
|
|
874 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
875 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
876 | { |
|
|
877 | int r = 0; |
|
|
878 | |
|
|
879 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
880 | |
|
|
881 | return r + ecb_ld32 (x); |
|
|
882 | } |
|
|
883 | #endif |
|
|
884 | |
|
|
885 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
886 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
887 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
888 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
889 | |
|
|
890 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
891 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
892 | { |
|
|
893 | return ( (x * 0x0802U & 0x22110U) |
|
|
894 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
895 | } |
|
|
896 | |
|
|
897 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
898 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
899 | { |
|
|
900 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
901 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
902 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
903 | x = ( x >> 8 ) | ( x << 8); |
|
|
904 | |
|
|
905 | return x; |
|
|
906 | } |
|
|
907 | |
|
|
908 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
909 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
910 | { |
|
|
911 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
912 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
913 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
914 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
915 | x = ( x >> 16 ) | ( x << 16); |
|
|
916 | |
|
|
917 | return x; |
|
|
918 | } |
|
|
919 | |
|
|
920 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
921 | /* so for this version we are lazy */ |
|
|
922 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
923 | ecb_function_ int |
|
|
924 | ecb_popcount64 (uint64_t x) |
|
|
925 | { |
|
|
926 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
927 | } |
|
|
928 | |
|
|
929 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
930 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
931 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
932 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
933 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
934 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
935 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
936 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
937 | |
|
|
938 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
939 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
940 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
941 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
942 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
943 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
944 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
945 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
946 | |
|
|
947 | #if ECB_GCC_VERSION(4,3) |
|
|
948 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
949 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
950 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
951 | #else |
|
|
952 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
953 | ecb_function_ uint16_t |
|
|
954 | ecb_bswap16 (uint16_t x) |
|
|
955 | { |
|
|
956 | return ecb_rotl16 (x, 8); |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
960 | ecb_function_ uint32_t |
|
|
961 | ecb_bswap32 (uint32_t x) |
|
|
962 | { |
|
|
963 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
964 | } |
|
|
965 | |
|
|
966 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
967 | ecb_function_ uint64_t |
|
|
968 | ecb_bswap64 (uint64_t x) |
|
|
969 | { |
|
|
970 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
971 | } |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | #if ECB_GCC_VERSION(4,5) |
|
|
975 | #define ecb_unreachable() __builtin_unreachable () |
|
|
976 | #else |
|
|
977 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
978 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
979 | ecb_inline void ecb_unreachable (void) { } |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | /* try to tell the compiler that some condition is definitely true */ |
|
|
983 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
984 | |
|
|
985 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
986 | ecb_inline unsigned char |
|
|
987 | ecb_byteorder_helper (void) |
|
|
988 | { |
|
|
989 | /* the union code still generates code under pressure in gcc, */ |
|
|
990 | /* but less than using pointers, and always seems to */ |
|
|
991 | /* successfully return a constant. */ |
|
|
992 | /* the reason why we have this horrible preprocessor mess */ |
|
|
993 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
994 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
995 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
996 | return 0x44; |
|
|
997 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
998 | return 0x44; |
|
|
999 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1000 | return 0x11; |
|
|
1001 | #else |
|
|
1002 | union |
|
|
1003 | { |
|
|
1004 | uint32_t i; |
|
|
1005 | uint8_t c; |
|
|
1006 | } u = { 0x11223344 }; |
|
|
1007 | return u.c; |
|
|
1008 | #endif |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1012 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1013 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1014 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1015 | |
|
|
1016 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1017 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1018 | #else |
|
|
1019 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | #if __cplusplus |
|
|
1023 | template<typename T> |
|
|
1024 | static inline T ecb_div_rd (T val, T div) |
|
|
1025 | { |
|
|
1026 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1027 | } |
|
|
1028 | template<typename T> |
|
|
1029 | static inline T ecb_div_ru (T val, T div) |
|
|
1030 | { |
|
|
1031 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1032 | } |
|
|
1033 | #else |
|
|
1034 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1035 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1036 | #endif |
|
|
1037 | |
|
|
1038 | #if ecb_cplusplus_does_not_suck |
|
|
1039 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1040 | template<typename T, int N> |
|
|
1041 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1042 | { |
|
|
1043 | return N; |
|
|
1044 | } |
|
|
1045 | #else |
|
|
1046 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1047 | #endif |
|
|
1048 | |
|
|
1049 | /*******************************************************************************/ |
|
|
1050 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1051 | |
|
|
1052 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1053 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1054 | #if 0 \ |
|
|
1055 | || __i386 || __i386__ \ |
|
|
1056 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1057 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1058 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1059 | || defined __s390__ || defined __s390x__ \ |
|
|
1060 | || defined __mips__ \ |
|
|
1061 | || defined __alpha__ \ |
|
|
1062 | || defined __hppa__ \ |
|
|
1063 | || defined __ia64__ \ |
|
|
1064 | || defined __m68k__ \ |
|
|
1065 | || defined __m88k__ \ |
|
|
1066 | || defined __sh__ \ |
|
|
1067 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1068 | #define ECB_STDFP 1 |
|
|
1069 | #include <string.h> /* for memcpy */ |
|
|
1070 | #else |
|
|
1071 | #define ECB_STDFP 0 |
|
|
1072 | #endif |
|
|
1073 | |
|
|
1074 | #ifndef ECB_NO_LIBM |
|
|
1075 | |
|
|
1076 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1077 | |
|
|
1078 | #ifdef NEN |
|
|
1079 | #define ECB_NAN NAN |
|
|
1080 | #else |
|
|
1081 | #define ECB_NAN INFINITY |
|
|
1082 | #endif |
|
|
1083 | |
|
|
1084 | /* converts an ieee half/binary16 to a float */ |
|
|
1085 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1086 | ecb_function_ float |
|
|
1087 | ecb_binary16_to_float (uint16_t x) |
|
|
1088 | { |
|
|
1089 | int e = (x >> 10) & 0x1f; |
|
|
1090 | int m = x & 0x3ff; |
|
|
1091 | float r; |
|
|
1092 | |
|
|
1093 | if (!e ) r = ldexpf (m , -24); |
|
|
1094 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1095 | else if (m ) r = ECB_NAN; |
|
|
1096 | else r = INFINITY; |
|
|
1097 | |
|
|
1098 | return x & 0x8000 ? -r : r; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | /* convert a float to ieee single/binary32 */ |
|
|
1102 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1103 | ecb_function_ uint32_t |
|
|
1104 | ecb_float_to_binary32 (float x) |
|
|
1105 | { |
|
|
1106 | uint32_t r; |
|
|
1107 | |
|
|
1108 | #if ECB_STDFP |
|
|
1109 | memcpy (&r, &x, 4); |
|
|
1110 | #else |
|
|
1111 | /* slow emulation, works for anything but -0 */ |
|
|
1112 | uint32_t m; |
|
|
1113 | int e; |
|
|
1114 | |
|
|
1115 | if (x == 0e0f ) return 0x00000000U; |
|
|
1116 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1117 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1118 | if (x != x ) return 0x7fbfffffU; |
|
|
1119 | |
|
|
1120 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1121 | |
|
|
1122 | r = m & 0x80000000U; |
|
|
1123 | |
|
|
1124 | if (r) |
|
|
1125 | m = -m; |
|
|
1126 | |
|
|
1127 | if (e <= -126) |
|
|
1128 | { |
|
|
1129 | m &= 0xffffffU; |
|
|
1130 | m >>= (-125 - e); |
|
|
1131 | e = -126; |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | r |= (e + 126) << 23; |
|
|
1135 | r |= m & 0x7fffffU; |
|
|
1136 | #endif |
|
|
1137 | |
|
|
1138 | return r; |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | /* converts an ieee single/binary32 to a float */ |
|
|
1142 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1143 | ecb_function_ float |
|
|
1144 | ecb_binary32_to_float (uint32_t x) |
|
|
1145 | { |
|
|
1146 | float r; |
|
|
1147 | |
|
|
1148 | #if ECB_STDFP |
|
|
1149 | memcpy (&r, &x, 4); |
|
|
1150 | #else |
|
|
1151 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1152 | int neg = x >> 31; |
|
|
1153 | int e = (x >> 23) & 0xffU; |
|
|
1154 | |
|
|
1155 | x &= 0x7fffffU; |
|
|
1156 | |
|
|
1157 | if (e) |
|
|
1158 | x |= 0x800000U; |
|
|
1159 | else |
|
|
1160 | e = 1; |
|
|
1161 | |
|
|
1162 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1163 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1164 | |
|
|
1165 | r = neg ? -r : r; |
|
|
1166 | #endif |
|
|
1167 | |
|
|
1168 | return r; |
|
|
1169 | } |
|
|
1170 | |
|
|
1171 | /* convert a double to ieee double/binary64 */ |
|
|
1172 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1173 | ecb_function_ uint64_t |
|
|
1174 | ecb_double_to_binary64 (double x) |
|
|
1175 | { |
|
|
1176 | uint64_t r; |
|
|
1177 | |
|
|
1178 | #if ECB_STDFP |
|
|
1179 | memcpy (&r, &x, 8); |
|
|
1180 | #else |
|
|
1181 | /* slow emulation, works for anything but -0 */ |
|
|
1182 | uint64_t m; |
|
|
1183 | int e; |
|
|
1184 | |
|
|
1185 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1186 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1187 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1188 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1189 | |
|
|
1190 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1191 | |
|
|
1192 | r = m & 0x8000000000000000;; |
|
|
1193 | |
|
|
1194 | if (r) |
|
|
1195 | m = -m; |
|
|
1196 | |
|
|
1197 | if (e <= -1022) |
|
|
1198 | { |
|
|
1199 | m &= 0x1fffffffffffffU; |
|
|
1200 | m >>= (-1021 - e); |
|
|
1201 | e = -1022; |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1205 | r |= m & 0xfffffffffffffU; |
|
|
1206 | #endif |
|
|
1207 | |
|
|
1208 | return r; |
|
|
1209 | } |
|
|
1210 | |
|
|
1211 | /* converts an ieee double/binary64 to a double */ |
|
|
1212 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1213 | ecb_function_ double |
|
|
1214 | ecb_binary64_to_double (uint64_t x) |
|
|
1215 | { |
|
|
1216 | double r; |
|
|
1217 | |
|
|
1218 | #if ECB_STDFP |
|
|
1219 | memcpy (&r, &x, 8); |
|
|
1220 | #else |
|
|
1221 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1222 | int neg = x >> 63; |
|
|
1223 | int e = (x >> 52) & 0x7ffU; |
|
|
1224 | |
|
|
1225 | x &= 0xfffffffffffffU; |
|
|
1226 | |
|
|
1227 | if (e) |
|
|
1228 | x |= 0x10000000000000U; |
|
|
1229 | else |
|
|
1230 | e = 1; |
|
|
1231 | |
|
|
1232 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1233 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1234 | |
|
|
1235 | r = neg ? -r : r; |
|
|
1236 | #endif |
|
|
1237 | |
|
|
1238 | return r; |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | #endif |
|
|
1242 | |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | /* ECB.H END */ |
|
|
1246 | |
|
|
1247 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1248 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1249 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1250 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1251 | * libev, in which cases the memory fences become nops. |
|
|
1252 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1253 | * which will then provide the memory fences. |
|
|
1254 | */ |
|
|
1255 | # error "memory fences not defined for your architecture, please report" |
|
|
1256 | #endif |
|
|
1257 | |
|
|
1258 | #ifndef ECB_MEMORY_FENCE |
|
|
1259 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1260 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1261 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1262 | #endif |
|
|
1263 | |
|
|
1264 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1265 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1266 | #define noinline ecb_noinline |
|
|
1267 | |
482 | #define inline_size static inline |
1268 | #define inline_size ecb_inline |
483 | |
1269 | |
484 | #if EV_FEATURE_CODE |
1270 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
1271 | # define inline_speed ecb_inline |
486 | #else |
1272 | #else |
487 | # define inline_speed static noinline |
1273 | # define inline_speed static noinline |
488 | #endif |
1274 | #endif |
489 | |
1275 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1276 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
581 | |
1367 | |
582 | #ifdef __linux |
1368 | #ifdef __linux |
583 | # include <sys/utsname.h> |
1369 | # include <sys/utsname.h> |
584 | #endif |
1370 | #endif |
585 | |
1371 | |
586 | static unsigned int noinline |
1372 | static unsigned int noinline ecb_cold |
587 | ev_linux_version (void) |
1373 | ev_linux_version (void) |
588 | { |
1374 | { |
589 | #ifdef __linux |
1375 | #ifdef __linux |
590 | unsigned int v = 0; |
1376 | unsigned int v = 0; |
591 | struct utsname buf; |
1377 | struct utsname buf; |
… | |
… | |
620 | } |
1406 | } |
621 | |
1407 | |
622 | /*****************************************************************************/ |
1408 | /*****************************************************************************/ |
623 | |
1409 | |
624 | #if EV_AVOID_STDIO |
1410 | #if EV_AVOID_STDIO |
625 | static void noinline |
1411 | static void noinline ecb_cold |
626 | ev_printerr (const char *msg) |
1412 | ev_printerr (const char *msg) |
627 | { |
1413 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1414 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1415 | } |
630 | #endif |
1416 | #endif |
631 | |
1417 | |
632 | static void (*syserr_cb)(const char *msg); |
1418 | static void (*syserr_cb)(const char *msg) EV_THROW; |
633 | |
1419 | |
634 | void |
1420 | void ecb_cold |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1421 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
636 | { |
1422 | { |
637 | syserr_cb = cb; |
1423 | syserr_cb = cb; |
638 | } |
1424 | } |
639 | |
1425 | |
640 | static void noinline |
1426 | static void noinline ecb_cold |
641 | ev_syserr (const char *msg) |
1427 | ev_syserr (const char *msg) |
642 | { |
1428 | { |
643 | if (!msg) |
1429 | if (!msg) |
644 | msg = "(libev) system error"; |
1430 | msg = "(libev) system error"; |
645 | |
1431 | |
… | |
… | |
658 | abort (); |
1444 | abort (); |
659 | } |
1445 | } |
660 | } |
1446 | } |
661 | |
1447 | |
662 | static void * |
1448 | static void * |
663 | ev_realloc_emul (void *ptr, long size) |
1449 | ev_realloc_emul (void *ptr, long size) EV_THROW |
664 | { |
1450 | { |
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
|
|
668 | /* some systems, notably openbsd and darwin, fail to properly |
1451 | /* some systems, notably openbsd and darwin, fail to properly |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1452 | * implement realloc (x, 0) (as required by both ansi c-89 and |
670 | * the single unix specification, so work around them here. |
1453 | * the single unix specification, so work around them here. |
|
|
1454 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1455 | * despite documenting it otherwise. |
671 | */ |
1456 | */ |
672 | |
1457 | |
673 | if (size) |
1458 | if (size) |
674 | return realloc (ptr, size); |
1459 | return realloc (ptr, size); |
675 | |
1460 | |
676 | free (ptr); |
1461 | free (ptr); |
677 | return 0; |
1462 | return 0; |
678 | #endif |
|
|
679 | } |
1463 | } |
680 | |
1464 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1465 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
682 | |
1466 | |
683 | void |
1467 | void ecb_cold |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1468 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
685 | { |
1469 | { |
686 | alloc = cb; |
1470 | alloc = cb; |
687 | } |
1471 | } |
688 | |
1472 | |
689 | inline_speed void * |
1473 | inline_speed void * |
… | |
… | |
777 | #undef VAR |
1561 | #undef VAR |
778 | }; |
1562 | }; |
779 | #include "ev_wrap.h" |
1563 | #include "ev_wrap.h" |
780 | |
1564 | |
781 | static struct ev_loop default_loop_struct; |
1565 | static struct ev_loop default_loop_struct; |
782 | struct ev_loop *ev_default_loop_ptr; |
1566 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
783 | |
1567 | |
784 | #else |
1568 | #else |
785 | |
1569 | |
786 | ev_tstamp ev_rt_now; |
1570 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
787 | #define VAR(name,decl) static decl; |
1571 | #define VAR(name,decl) static decl; |
788 | #include "ev_vars.h" |
1572 | #include "ev_vars.h" |
789 | #undef VAR |
1573 | #undef VAR |
790 | |
1574 | |
791 | static int ev_default_loop_ptr; |
1575 | static int ev_default_loop_ptr; |
… | |
… | |
806 | |
1590 | |
807 | /*****************************************************************************/ |
1591 | /*****************************************************************************/ |
808 | |
1592 | |
809 | #ifndef EV_HAVE_EV_TIME |
1593 | #ifndef EV_HAVE_EV_TIME |
810 | ev_tstamp |
1594 | ev_tstamp |
811 | ev_time (void) |
1595 | ev_time (void) EV_THROW |
812 | { |
1596 | { |
813 | #if EV_USE_REALTIME |
1597 | #if EV_USE_REALTIME |
814 | if (expect_true (have_realtime)) |
1598 | if (expect_true (have_realtime)) |
815 | { |
1599 | { |
816 | struct timespec ts; |
1600 | struct timespec ts; |
… | |
… | |
840 | return ev_time (); |
1624 | return ev_time (); |
841 | } |
1625 | } |
842 | |
1626 | |
843 | #if EV_MULTIPLICITY |
1627 | #if EV_MULTIPLICITY |
844 | ev_tstamp |
1628 | ev_tstamp |
845 | ev_now (EV_P) |
1629 | ev_now (EV_P) EV_THROW |
846 | { |
1630 | { |
847 | return ev_rt_now; |
1631 | return ev_rt_now; |
848 | } |
1632 | } |
849 | #endif |
1633 | #endif |
850 | |
1634 | |
851 | void |
1635 | void |
852 | ev_sleep (ev_tstamp delay) |
1636 | ev_sleep (ev_tstamp delay) EV_THROW |
853 | { |
1637 | { |
854 | if (delay > 0.) |
1638 | if (delay > 0.) |
855 | { |
1639 | { |
856 | #if EV_USE_NANOSLEEP |
1640 | #if EV_USE_NANOSLEEP |
857 | struct timespec ts; |
1641 | struct timespec ts; |
858 | |
1642 | |
859 | EV_TS_SET (ts, delay); |
1643 | EV_TS_SET (ts, delay); |
860 | nanosleep (&ts, 0); |
1644 | nanosleep (&ts, 0); |
861 | #elif defined(_WIN32) |
1645 | #elif defined _WIN32 |
862 | Sleep ((unsigned long)(delay * 1e3)); |
1646 | Sleep ((unsigned long)(delay * 1e3)); |
863 | #else |
1647 | #else |
864 | struct timeval tv; |
1648 | struct timeval tv; |
865 | |
1649 | |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1650 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
885 | |
1669 | |
886 | do |
1670 | do |
887 | ncur <<= 1; |
1671 | ncur <<= 1; |
888 | while (cnt > ncur); |
1672 | while (cnt > ncur); |
889 | |
1673 | |
890 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1674 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
891 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1675 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
892 | { |
1676 | { |
893 | ncur *= elem; |
1677 | ncur *= elem; |
894 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1678 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
895 | ncur = ncur - sizeof (void *) * 4; |
1679 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
897 | } |
1681 | } |
898 | |
1682 | |
899 | return ncur; |
1683 | return ncur; |
900 | } |
1684 | } |
901 | |
1685 | |
902 | static noinline void * |
1686 | static void * noinline ecb_cold |
903 | array_realloc (int elem, void *base, int *cur, int cnt) |
1687 | array_realloc (int elem, void *base, int *cur, int cnt) |
904 | { |
1688 | { |
905 | *cur = array_nextsize (elem, *cur, cnt); |
1689 | *cur = array_nextsize (elem, *cur, cnt); |
906 | return ev_realloc (base, elem * *cur); |
1690 | return ev_realloc (base, elem * *cur); |
907 | } |
1691 | } |
… | |
… | |
910 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1694 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
911 | |
1695 | |
912 | #define array_needsize(type,base,cur,cnt,init) \ |
1696 | #define array_needsize(type,base,cur,cnt,init) \ |
913 | if (expect_false ((cnt) > (cur))) \ |
1697 | if (expect_false ((cnt) > (cur))) \ |
914 | { \ |
1698 | { \ |
915 | int ocur_ = (cur); \ |
1699 | int ecb_unused ocur_ = (cur); \ |
916 | (base) = (type *)array_realloc \ |
1700 | (base) = (type *)array_realloc \ |
917 | (sizeof (type), (base), &(cur), (cnt)); \ |
1701 | (sizeof (type), (base), &(cur), (cnt)); \ |
918 | init ((base) + (ocur_), (cur) - ocur_); \ |
1702 | init ((base) + (ocur_), (cur) - ocur_); \ |
919 | } |
1703 | } |
920 | |
1704 | |
… | |
… | |
938 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1722 | pendingcb (EV_P_ ev_prepare *w, int revents) |
939 | { |
1723 | { |
940 | } |
1724 | } |
941 | |
1725 | |
942 | void noinline |
1726 | void noinline |
943 | ev_feed_event (EV_P_ void *w, int revents) |
1727 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
944 | { |
1728 | { |
945 | W w_ = (W)w; |
1729 | W w_ = (W)w; |
946 | int pri = ABSPRI (w_); |
1730 | int pri = ABSPRI (w_); |
947 | |
1731 | |
948 | if (expect_false (w_->pending)) |
1732 | if (expect_false (w_->pending)) |
… | |
… | |
952 | w_->pending = ++pendingcnt [pri]; |
1736 | w_->pending = ++pendingcnt [pri]; |
953 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1737 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
954 | pendings [pri][w_->pending - 1].w = w_; |
1738 | pendings [pri][w_->pending - 1].w = w_; |
955 | pendings [pri][w_->pending - 1].events = revents; |
1739 | pendings [pri][w_->pending - 1].events = revents; |
956 | } |
1740 | } |
|
|
1741 | |
|
|
1742 | pendingpri = NUMPRI - 1; |
957 | } |
1743 | } |
958 | |
1744 | |
959 | inline_speed void |
1745 | inline_speed void |
960 | feed_reverse (EV_P_ W w) |
1746 | feed_reverse (EV_P_ W w) |
961 | { |
1747 | { |
… | |
… | |
1007 | if (expect_true (!anfd->reify)) |
1793 | if (expect_true (!anfd->reify)) |
1008 | fd_event_nocheck (EV_A_ fd, revents); |
1794 | fd_event_nocheck (EV_A_ fd, revents); |
1009 | } |
1795 | } |
1010 | |
1796 | |
1011 | void |
1797 | void |
1012 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1798 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1013 | { |
1799 | { |
1014 | if (fd >= 0 && fd < anfdmax) |
1800 | if (fd >= 0 && fd < anfdmax) |
1015 | fd_event_nocheck (EV_A_ fd, revents); |
1801 | fd_event_nocheck (EV_A_ fd, revents); |
1016 | } |
1802 | } |
1017 | |
1803 | |
… | |
… | |
1090 | fdchanges [fdchangecnt - 1] = fd; |
1876 | fdchanges [fdchangecnt - 1] = fd; |
1091 | } |
1877 | } |
1092 | } |
1878 | } |
1093 | |
1879 | |
1094 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1880 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1095 | inline_speed void |
1881 | inline_speed void ecb_cold |
1096 | fd_kill (EV_P_ int fd) |
1882 | fd_kill (EV_P_ int fd) |
1097 | { |
1883 | { |
1098 | ev_io *w; |
1884 | ev_io *w; |
1099 | |
1885 | |
1100 | while ((w = (ev_io *)anfds [fd].head)) |
1886 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1889 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1104 | } |
1890 | } |
1105 | } |
1891 | } |
1106 | |
1892 | |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
1893 | /* check whether the given fd is actually valid, for error recovery */ |
1108 | inline_size int |
1894 | inline_size int ecb_cold |
1109 | fd_valid (int fd) |
1895 | fd_valid (int fd) |
1110 | { |
1896 | { |
1111 | #ifdef _WIN32 |
1897 | #ifdef _WIN32 |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1898 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1113 | #else |
1899 | #else |
1114 | return fcntl (fd, F_GETFD) != -1; |
1900 | return fcntl (fd, F_GETFD) != -1; |
1115 | #endif |
1901 | #endif |
1116 | } |
1902 | } |
1117 | |
1903 | |
1118 | /* called on EBADF to verify fds */ |
1904 | /* called on EBADF to verify fds */ |
1119 | static void noinline |
1905 | static void noinline ecb_cold |
1120 | fd_ebadf (EV_P) |
1906 | fd_ebadf (EV_P) |
1121 | { |
1907 | { |
1122 | int fd; |
1908 | int fd; |
1123 | |
1909 | |
1124 | for (fd = 0; fd < anfdmax; ++fd) |
1910 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1126 | if (!fd_valid (fd) && errno == EBADF) |
1912 | if (!fd_valid (fd) && errno == EBADF) |
1127 | fd_kill (EV_A_ fd); |
1913 | fd_kill (EV_A_ fd); |
1128 | } |
1914 | } |
1129 | |
1915 | |
1130 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1916 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1131 | static void noinline |
1917 | static void noinline ecb_cold |
1132 | fd_enomem (EV_P) |
1918 | fd_enomem (EV_P) |
1133 | { |
1919 | { |
1134 | int fd; |
1920 | int fd; |
1135 | |
1921 | |
1136 | for (fd = anfdmax; fd--; ) |
1922 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1331 | |
2117 | |
1332 | /*****************************************************************************/ |
2118 | /*****************************************************************************/ |
1333 | |
2119 | |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2120 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1335 | |
2121 | |
1336 | static void noinline |
2122 | static void noinline ecb_cold |
1337 | evpipe_init (EV_P) |
2123 | evpipe_init (EV_P) |
1338 | { |
2124 | { |
1339 | if (!ev_is_active (&pipe_w)) |
2125 | if (!ev_is_active (&pipe_w)) |
1340 | { |
2126 | { |
|
|
2127 | int fds [2]; |
|
|
2128 | |
1341 | # if EV_USE_EVENTFD |
2129 | # if EV_USE_EVENTFD |
|
|
2130 | fds [0] = -1; |
1342 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2131 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1343 | if (evfd < 0 && errno == EINVAL) |
2132 | if (fds [1] < 0 && errno == EINVAL) |
1344 | evfd = eventfd (0, 0); |
2133 | fds [1] = eventfd (0, 0); |
1345 | |
2134 | |
1346 | if (evfd >= 0) |
2135 | if (fds [1] < 0) |
|
|
2136 | # endif |
1347 | { |
2137 | { |
|
|
2138 | while (pipe (fds)) |
|
|
2139 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2140 | |
|
|
2141 | fd_intern (fds [0]); |
|
|
2142 | } |
|
|
2143 | |
1348 | evpipe [0] = -1; |
2144 | evpipe [0] = fds [0]; |
1349 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2145 | |
1350 | ev_io_set (&pipe_w, evfd, EV_READ); |
2146 | if (evpipe [1] < 0) |
|
|
2147 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2148 | else |
|
|
2149 | { |
|
|
2150 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2151 | /* so that evpipe_write can always rely on its value. */ |
|
|
2152 | /* this branch does not do anything sensible on windows, */ |
|
|
2153 | /* so must not be executed on windows */ |
|
|
2154 | |
|
|
2155 | dup2 (fds [1], evpipe [1]); |
|
|
2156 | close (fds [1]); |
|
|
2157 | } |
|
|
2158 | |
|
|
2159 | fd_intern (evpipe [1]); |
|
|
2160 | |
|
|
2161 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2162 | ev_io_start (EV_A_ &pipe_w); |
|
|
2163 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2164 | } |
|
|
2165 | } |
|
|
2166 | |
|
|
2167 | inline_speed void |
|
|
2168 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2169 | { |
|
|
2170 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2171 | |
|
|
2172 | if (expect_true (*flag)) |
|
|
2173 | return; |
|
|
2174 | |
|
|
2175 | *flag = 1; |
|
|
2176 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2177 | |
|
|
2178 | pipe_write_skipped = 1; |
|
|
2179 | |
|
|
2180 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2181 | |
|
|
2182 | if (pipe_write_wanted) |
|
|
2183 | { |
|
|
2184 | int old_errno; |
|
|
2185 | |
|
|
2186 | pipe_write_skipped = 0; |
|
|
2187 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2188 | |
|
|
2189 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2190 | |
|
|
2191 | #if EV_USE_EVENTFD |
|
|
2192 | if (evpipe [0] < 0) |
|
|
2193 | { |
|
|
2194 | uint64_t counter = 1; |
|
|
2195 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1351 | } |
2196 | } |
1352 | else |
2197 | else |
1353 | # endif |
2198 | #endif |
1354 | { |
2199 | { |
1355 | while (pipe (evpipe)) |
2200 | #ifdef _WIN32 |
1356 | ev_syserr ("(libev) error creating signal/async pipe"); |
2201 | WSABUF buf; |
1357 | |
2202 | DWORD sent; |
1358 | fd_intern (evpipe [0]); |
2203 | buf.buf = &buf; |
1359 | fd_intern (evpipe [1]); |
2204 | buf.len = 1; |
1360 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2205 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2206 | #else |
|
|
2207 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2208 | #endif |
1361 | } |
2209 | } |
1362 | |
|
|
1363 | ev_io_start (EV_A_ &pipe_w); |
|
|
1364 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1365 | } |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | inline_size void |
|
|
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1370 | { |
|
|
1371 | if (!*flag) |
|
|
1372 | { |
|
|
1373 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1374 | char dummy; |
|
|
1375 | |
|
|
1376 | *flag = 1; |
|
|
1377 | |
|
|
1378 | #if EV_USE_EVENTFD |
|
|
1379 | if (evfd >= 0) |
|
|
1380 | { |
|
|
1381 | uint64_t counter = 1; |
|
|
1382 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1383 | } |
|
|
1384 | else |
|
|
1385 | #endif |
|
|
1386 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1387 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1388 | /* so when you think this write should be a send instead, please find out */ |
|
|
1389 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1390 | /* tell me. thank you. */ |
|
|
1391 | write (evpipe [1], &dummy, 1); |
|
|
1392 | |
2210 | |
1393 | errno = old_errno; |
2211 | errno = old_errno; |
1394 | } |
2212 | } |
1395 | } |
2213 | } |
1396 | |
2214 | |
… | |
… | |
1399 | static void |
2217 | static void |
1400 | pipecb (EV_P_ ev_io *iow, int revents) |
2218 | pipecb (EV_P_ ev_io *iow, int revents) |
1401 | { |
2219 | { |
1402 | int i; |
2220 | int i; |
1403 | |
2221 | |
|
|
2222 | if (revents & EV_READ) |
|
|
2223 | { |
1404 | #if EV_USE_EVENTFD |
2224 | #if EV_USE_EVENTFD |
1405 | if (evfd >= 0) |
2225 | if (evpipe [0] < 0) |
1406 | { |
2226 | { |
1407 | uint64_t counter; |
2227 | uint64_t counter; |
1408 | read (evfd, &counter, sizeof (uint64_t)); |
2228 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1409 | } |
2229 | } |
1410 | else |
2230 | else |
1411 | #endif |
2231 | #endif |
1412 | { |
2232 | { |
1413 | char dummy; |
2233 | char dummy[4]; |
1414 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2234 | #ifdef _WIN32 |
|
|
2235 | WSABUF buf; |
|
|
2236 | DWORD recvd; |
|
|
2237 | DWORD flags = 0; |
|
|
2238 | buf.buf = dummy; |
|
|
2239 | buf.len = sizeof (dummy); |
|
|
2240 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2241 | #else |
1415 | read (evpipe [0], &dummy, 1); |
2242 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2243 | #endif |
|
|
2244 | } |
1416 | } |
2245 | } |
|
|
2246 | |
|
|
2247 | pipe_write_skipped = 0; |
|
|
2248 | |
|
|
2249 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1417 | |
2250 | |
1418 | #if EV_SIGNAL_ENABLE |
2251 | #if EV_SIGNAL_ENABLE |
1419 | if (sig_pending) |
2252 | if (sig_pending) |
1420 | { |
2253 | { |
1421 | sig_pending = 0; |
2254 | sig_pending = 0; |
|
|
2255 | |
|
|
2256 | ECB_MEMORY_FENCE; |
1422 | |
2257 | |
1423 | for (i = EV_NSIG - 1; i--; ) |
2258 | for (i = EV_NSIG - 1; i--; ) |
1424 | if (expect_false (signals [i].pending)) |
2259 | if (expect_false (signals [i].pending)) |
1425 | ev_feed_signal_event (EV_A_ i + 1); |
2260 | ev_feed_signal_event (EV_A_ i + 1); |
1426 | } |
2261 | } |
… | |
… | |
1428 | |
2263 | |
1429 | #if EV_ASYNC_ENABLE |
2264 | #if EV_ASYNC_ENABLE |
1430 | if (async_pending) |
2265 | if (async_pending) |
1431 | { |
2266 | { |
1432 | async_pending = 0; |
2267 | async_pending = 0; |
|
|
2268 | |
|
|
2269 | ECB_MEMORY_FENCE; |
1433 | |
2270 | |
1434 | for (i = asynccnt; i--; ) |
2271 | for (i = asynccnt; i--; ) |
1435 | if (asyncs [i]->sent) |
2272 | if (asyncs [i]->sent) |
1436 | { |
2273 | { |
1437 | asyncs [i]->sent = 0; |
2274 | asyncs [i]->sent = 0; |
|
|
2275 | ECB_MEMORY_FENCE_RELEASE; |
1438 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2276 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1439 | } |
2277 | } |
1440 | } |
2278 | } |
1441 | #endif |
2279 | #endif |
1442 | } |
2280 | } |
1443 | |
2281 | |
1444 | /*****************************************************************************/ |
2282 | /*****************************************************************************/ |
1445 | |
2283 | |
1446 | void |
2284 | void |
1447 | ev_feed_signal (int signum) |
2285 | ev_feed_signal (int signum) EV_THROW |
1448 | { |
2286 | { |
1449 | #if EV_MULTIPLICITY |
2287 | #if EV_MULTIPLICITY |
|
|
2288 | EV_P; |
|
|
2289 | ECB_MEMORY_FENCE_ACQUIRE; |
1450 | EV_P = signals [signum - 1].loop; |
2290 | EV_A = signals [signum - 1].loop; |
1451 | |
2291 | |
1452 | if (!EV_A) |
2292 | if (!EV_A) |
1453 | return; |
2293 | return; |
1454 | #endif |
2294 | #endif |
1455 | |
2295 | |
… | |
… | |
1466 | |
2306 | |
1467 | ev_feed_signal (signum); |
2307 | ev_feed_signal (signum); |
1468 | } |
2308 | } |
1469 | |
2309 | |
1470 | void noinline |
2310 | void noinline |
1471 | ev_feed_signal_event (EV_P_ int signum) |
2311 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1472 | { |
2312 | { |
1473 | WL w; |
2313 | WL w; |
1474 | |
2314 | |
1475 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2315 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1476 | return; |
2316 | return; |
1477 | |
2317 | |
1478 | --signum; |
2318 | --signum; |
1479 | |
2319 | |
1480 | #if EV_MULTIPLICITY |
2320 | #if EV_MULTIPLICITY |
… | |
… | |
1484 | if (expect_false (signals [signum].loop != EV_A)) |
2324 | if (expect_false (signals [signum].loop != EV_A)) |
1485 | return; |
2325 | return; |
1486 | #endif |
2326 | #endif |
1487 | |
2327 | |
1488 | signals [signum].pending = 0; |
2328 | signals [signum].pending = 0; |
|
|
2329 | ECB_MEMORY_FENCE_RELEASE; |
1489 | |
2330 | |
1490 | for (w = signals [signum].head; w; w = w->next) |
2331 | for (w = signals [signum].head; w; w = w->next) |
1491 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2332 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1492 | } |
2333 | } |
1493 | |
2334 | |
… | |
… | |
1591 | #endif |
2432 | #endif |
1592 | #if EV_USE_SELECT |
2433 | #if EV_USE_SELECT |
1593 | # include "ev_select.c" |
2434 | # include "ev_select.c" |
1594 | #endif |
2435 | #endif |
1595 | |
2436 | |
1596 | int |
2437 | int ecb_cold |
1597 | ev_version_major (void) |
2438 | ev_version_major (void) EV_THROW |
1598 | { |
2439 | { |
1599 | return EV_VERSION_MAJOR; |
2440 | return EV_VERSION_MAJOR; |
1600 | } |
2441 | } |
1601 | |
2442 | |
1602 | int |
2443 | int ecb_cold |
1603 | ev_version_minor (void) |
2444 | ev_version_minor (void) EV_THROW |
1604 | { |
2445 | { |
1605 | return EV_VERSION_MINOR; |
2446 | return EV_VERSION_MINOR; |
1606 | } |
2447 | } |
1607 | |
2448 | |
1608 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2449 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1609 | int inline_size |
2450 | int inline_size ecb_cold |
1610 | enable_secure (void) |
2451 | enable_secure (void) |
1611 | { |
2452 | { |
1612 | #ifdef _WIN32 |
2453 | #ifdef _WIN32 |
1613 | return 0; |
2454 | return 0; |
1614 | #else |
2455 | #else |
1615 | return getuid () != geteuid () |
2456 | return getuid () != geteuid () |
1616 | || getgid () != getegid (); |
2457 | || getgid () != getegid (); |
1617 | #endif |
2458 | #endif |
1618 | } |
2459 | } |
1619 | |
2460 | |
1620 | unsigned int |
2461 | unsigned int ecb_cold |
1621 | ev_supported_backends (void) |
2462 | ev_supported_backends (void) EV_THROW |
1622 | { |
2463 | { |
1623 | unsigned int flags = 0; |
2464 | unsigned int flags = 0; |
1624 | |
2465 | |
1625 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2466 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1626 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2467 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1629 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2470 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1630 | |
2471 | |
1631 | return flags; |
2472 | return flags; |
1632 | } |
2473 | } |
1633 | |
2474 | |
1634 | unsigned int |
2475 | unsigned int ecb_cold |
1635 | ev_recommended_backends (void) |
2476 | ev_recommended_backends (void) EV_THROW |
1636 | { |
2477 | { |
1637 | unsigned int flags = ev_supported_backends (); |
2478 | unsigned int flags = ev_supported_backends (); |
1638 | |
2479 | |
1639 | #ifndef __NetBSD__ |
2480 | #ifndef __NetBSD__ |
1640 | /* kqueue is borked on everything but netbsd apparently */ |
2481 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1651 | #endif |
2492 | #endif |
1652 | |
2493 | |
1653 | return flags; |
2494 | return flags; |
1654 | } |
2495 | } |
1655 | |
2496 | |
1656 | unsigned int |
2497 | unsigned int ecb_cold |
1657 | ev_embeddable_backends (void) |
2498 | ev_embeddable_backends (void) EV_THROW |
1658 | { |
2499 | { |
1659 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2500 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1660 | |
2501 | |
1661 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2502 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1662 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2503 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1664 | |
2505 | |
1665 | return flags; |
2506 | return flags; |
1666 | } |
2507 | } |
1667 | |
2508 | |
1668 | unsigned int |
2509 | unsigned int |
1669 | ev_backend (EV_P) |
2510 | ev_backend (EV_P) EV_THROW |
1670 | { |
2511 | { |
1671 | return backend; |
2512 | return backend; |
1672 | } |
2513 | } |
1673 | |
2514 | |
1674 | #if EV_FEATURE_API |
2515 | #if EV_FEATURE_API |
1675 | unsigned int |
2516 | unsigned int |
1676 | ev_iteration (EV_P) |
2517 | ev_iteration (EV_P) EV_THROW |
1677 | { |
2518 | { |
1678 | return loop_count; |
2519 | return loop_count; |
1679 | } |
2520 | } |
1680 | |
2521 | |
1681 | unsigned int |
2522 | unsigned int |
1682 | ev_depth (EV_P) |
2523 | ev_depth (EV_P) EV_THROW |
1683 | { |
2524 | { |
1684 | return loop_depth; |
2525 | return loop_depth; |
1685 | } |
2526 | } |
1686 | |
2527 | |
1687 | void |
2528 | void |
1688 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2529 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1689 | { |
2530 | { |
1690 | io_blocktime = interval; |
2531 | io_blocktime = interval; |
1691 | } |
2532 | } |
1692 | |
2533 | |
1693 | void |
2534 | void |
1694 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2535 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1695 | { |
2536 | { |
1696 | timeout_blocktime = interval; |
2537 | timeout_blocktime = interval; |
1697 | } |
2538 | } |
1698 | |
2539 | |
1699 | void |
2540 | void |
1700 | ev_set_userdata (EV_P_ void *data) |
2541 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1701 | { |
2542 | { |
1702 | userdata = data; |
2543 | userdata = data; |
1703 | } |
2544 | } |
1704 | |
2545 | |
1705 | void * |
2546 | void * |
1706 | ev_userdata (EV_P) |
2547 | ev_userdata (EV_P) EV_THROW |
1707 | { |
2548 | { |
1708 | return userdata; |
2549 | return userdata; |
1709 | } |
2550 | } |
1710 | |
2551 | |
|
|
2552 | void |
1711 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2553 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1712 | { |
2554 | { |
1713 | invoke_cb = invoke_pending_cb; |
2555 | invoke_cb = invoke_pending_cb; |
1714 | } |
2556 | } |
1715 | |
2557 | |
|
|
2558 | void |
1716 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2559 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1717 | { |
2560 | { |
1718 | release_cb = release; |
2561 | release_cb = release; |
1719 | acquire_cb = acquire; |
2562 | acquire_cb = acquire; |
1720 | } |
2563 | } |
1721 | #endif |
2564 | #endif |
1722 | |
2565 | |
1723 | /* initialise a loop structure, must be zero-initialised */ |
2566 | /* initialise a loop structure, must be zero-initialised */ |
1724 | static void noinline |
2567 | static void noinline ecb_cold |
1725 | loop_init (EV_P_ unsigned int flags) |
2568 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1726 | { |
2569 | { |
1727 | if (!backend) |
2570 | if (!backend) |
1728 | { |
2571 | { |
1729 | origflags = flags; |
2572 | origflags = flags; |
1730 | |
2573 | |
… | |
… | |
1757 | if (!(flags & EVFLAG_NOENV) |
2600 | if (!(flags & EVFLAG_NOENV) |
1758 | && !enable_secure () |
2601 | && !enable_secure () |
1759 | && getenv ("LIBEV_FLAGS")) |
2602 | && getenv ("LIBEV_FLAGS")) |
1760 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2603 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1761 | |
2604 | |
1762 | ev_rt_now = ev_time (); |
2605 | ev_rt_now = ev_time (); |
1763 | mn_now = get_clock (); |
2606 | mn_now = get_clock (); |
1764 | now_floor = mn_now; |
2607 | now_floor = mn_now; |
1765 | rtmn_diff = ev_rt_now - mn_now; |
2608 | rtmn_diff = ev_rt_now - mn_now; |
1766 | #if EV_FEATURE_API |
2609 | #if EV_FEATURE_API |
1767 | invoke_cb = ev_invoke_pending; |
2610 | invoke_cb = ev_invoke_pending; |
1768 | #endif |
2611 | #endif |
1769 | |
2612 | |
1770 | io_blocktime = 0.; |
2613 | io_blocktime = 0.; |
1771 | timeout_blocktime = 0.; |
2614 | timeout_blocktime = 0.; |
1772 | backend = 0; |
2615 | backend = 0; |
1773 | backend_fd = -1; |
2616 | backend_fd = -1; |
1774 | sig_pending = 0; |
2617 | sig_pending = 0; |
1775 | #if EV_ASYNC_ENABLE |
2618 | #if EV_ASYNC_ENABLE |
1776 | async_pending = 0; |
2619 | async_pending = 0; |
1777 | #endif |
2620 | #endif |
|
|
2621 | pipe_write_skipped = 0; |
|
|
2622 | pipe_write_wanted = 0; |
|
|
2623 | evpipe [0] = -1; |
|
|
2624 | evpipe [1] = -1; |
1778 | #if EV_USE_INOTIFY |
2625 | #if EV_USE_INOTIFY |
1779 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2626 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1780 | #endif |
2627 | #endif |
1781 | #if EV_USE_SIGNALFD |
2628 | #if EV_USE_SIGNALFD |
1782 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2629 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1783 | #endif |
2630 | #endif |
1784 | |
2631 | |
1785 | if (!(flags & EVBACKEND_MASK)) |
2632 | if (!(flags & EVBACKEND_MASK)) |
1786 | flags |= ev_recommended_backends (); |
2633 | flags |= ev_recommended_backends (); |
1787 | |
2634 | |
… | |
… | |
1812 | #endif |
2659 | #endif |
1813 | } |
2660 | } |
1814 | } |
2661 | } |
1815 | |
2662 | |
1816 | /* free up a loop structure */ |
2663 | /* free up a loop structure */ |
1817 | void |
2664 | void ecb_cold |
1818 | ev_loop_destroy (EV_P) |
2665 | ev_loop_destroy (EV_P) |
1819 | { |
2666 | { |
1820 | int i; |
2667 | int i; |
1821 | |
2668 | |
1822 | #if EV_MULTIPLICITY |
2669 | #if EV_MULTIPLICITY |
… | |
… | |
1833 | EV_INVOKE_PENDING; |
2680 | EV_INVOKE_PENDING; |
1834 | } |
2681 | } |
1835 | #endif |
2682 | #endif |
1836 | |
2683 | |
1837 | #if EV_CHILD_ENABLE |
2684 | #if EV_CHILD_ENABLE |
1838 | if (ev_is_active (&childev)) |
2685 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1839 | { |
2686 | { |
1840 | ev_ref (EV_A); /* child watcher */ |
2687 | ev_ref (EV_A); /* child watcher */ |
1841 | ev_signal_stop (EV_A_ &childev); |
2688 | ev_signal_stop (EV_A_ &childev); |
1842 | } |
2689 | } |
1843 | #endif |
2690 | #endif |
… | |
… | |
1845 | if (ev_is_active (&pipe_w)) |
2692 | if (ev_is_active (&pipe_w)) |
1846 | { |
2693 | { |
1847 | /*ev_ref (EV_A);*/ |
2694 | /*ev_ref (EV_A);*/ |
1848 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2695 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1849 | |
2696 | |
1850 | #if EV_USE_EVENTFD |
|
|
1851 | if (evfd >= 0) |
|
|
1852 | close (evfd); |
|
|
1853 | #endif |
|
|
1854 | |
|
|
1855 | if (evpipe [0] >= 0) |
|
|
1856 | { |
|
|
1857 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2697 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1858 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2698 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1859 | } |
|
|
1860 | } |
2699 | } |
1861 | |
2700 | |
1862 | #if EV_USE_SIGNALFD |
2701 | #if EV_USE_SIGNALFD |
1863 | if (ev_is_active (&sigfd_w)) |
2702 | if (ev_is_active (&sigfd_w)) |
1864 | close (sigfd); |
2703 | close (sigfd); |
… | |
… | |
1950 | #endif |
2789 | #endif |
1951 | #if EV_USE_INOTIFY |
2790 | #if EV_USE_INOTIFY |
1952 | infy_fork (EV_A); |
2791 | infy_fork (EV_A); |
1953 | #endif |
2792 | #endif |
1954 | |
2793 | |
|
|
2794 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1955 | if (ev_is_active (&pipe_w)) |
2795 | if (ev_is_active (&pipe_w)) |
1956 | { |
2796 | { |
1957 | /* this "locks" the handlers against writing to the pipe */ |
2797 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1958 | /* while we modify the fd vars */ |
|
|
1959 | sig_pending = 1; |
|
|
1960 | #if EV_ASYNC_ENABLE |
|
|
1961 | async_pending = 1; |
|
|
1962 | #endif |
|
|
1963 | |
2798 | |
1964 | ev_ref (EV_A); |
2799 | ev_ref (EV_A); |
1965 | ev_io_stop (EV_A_ &pipe_w); |
2800 | ev_io_stop (EV_A_ &pipe_w); |
1966 | |
2801 | |
1967 | #if EV_USE_EVENTFD |
|
|
1968 | if (evfd >= 0) |
|
|
1969 | close (evfd); |
|
|
1970 | #endif |
|
|
1971 | |
|
|
1972 | if (evpipe [0] >= 0) |
2802 | if (evpipe [0] >= 0) |
1973 | { |
|
|
1974 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2803 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1975 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1976 | } |
|
|
1977 | |
2804 | |
1978 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1979 | evpipe_init (EV_A); |
2805 | evpipe_init (EV_A); |
1980 | /* now iterate over everything, in case we missed something */ |
2806 | /* iterate over everything, in case we missed something before */ |
1981 | pipecb (EV_A_ &pipe_w, EV_READ); |
2807 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1982 | #endif |
|
|
1983 | } |
2808 | } |
|
|
2809 | #endif |
1984 | |
2810 | |
1985 | postfork = 0; |
2811 | postfork = 0; |
1986 | } |
2812 | } |
1987 | |
2813 | |
1988 | #if EV_MULTIPLICITY |
2814 | #if EV_MULTIPLICITY |
1989 | |
2815 | |
1990 | struct ev_loop * |
2816 | struct ev_loop * ecb_cold |
1991 | ev_loop_new (unsigned int flags) |
2817 | ev_loop_new (unsigned int flags) EV_THROW |
1992 | { |
2818 | { |
1993 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2819 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1994 | |
2820 | |
1995 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2821 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1996 | loop_init (EV_A_ flags); |
2822 | loop_init (EV_A_ flags); |
… | |
… | |
2003 | } |
2829 | } |
2004 | |
2830 | |
2005 | #endif /* multiplicity */ |
2831 | #endif /* multiplicity */ |
2006 | |
2832 | |
2007 | #if EV_VERIFY |
2833 | #if EV_VERIFY |
2008 | static void noinline |
2834 | static void noinline ecb_cold |
2009 | verify_watcher (EV_P_ W w) |
2835 | verify_watcher (EV_P_ W w) |
2010 | { |
2836 | { |
2011 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2837 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2012 | |
2838 | |
2013 | if (w->pending) |
2839 | if (w->pending) |
2014 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2840 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2015 | } |
2841 | } |
2016 | |
2842 | |
2017 | static void noinline |
2843 | static void noinline ecb_cold |
2018 | verify_heap (EV_P_ ANHE *heap, int N) |
2844 | verify_heap (EV_P_ ANHE *heap, int N) |
2019 | { |
2845 | { |
2020 | int i; |
2846 | int i; |
2021 | |
2847 | |
2022 | for (i = HEAP0; i < N + HEAP0; ++i) |
2848 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2027 | |
2853 | |
2028 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2854 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2029 | } |
2855 | } |
2030 | } |
2856 | } |
2031 | |
2857 | |
2032 | static void noinline |
2858 | static void noinline ecb_cold |
2033 | array_verify (EV_P_ W *ws, int cnt) |
2859 | array_verify (EV_P_ W *ws, int cnt) |
2034 | { |
2860 | { |
2035 | while (cnt--) |
2861 | while (cnt--) |
2036 | { |
2862 | { |
2037 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2863 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2039 | } |
2865 | } |
2040 | } |
2866 | } |
2041 | #endif |
2867 | #endif |
2042 | |
2868 | |
2043 | #if EV_FEATURE_API |
2869 | #if EV_FEATURE_API |
2044 | void |
2870 | void ecb_cold |
2045 | ev_verify (EV_P) |
2871 | ev_verify (EV_P) EV_THROW |
2046 | { |
2872 | { |
2047 | #if EV_VERIFY |
2873 | #if EV_VERIFY |
2048 | int i; |
2874 | int i; |
2049 | WL w; |
2875 | WL w, w2; |
2050 | |
2876 | |
2051 | assert (activecnt >= -1); |
2877 | assert (activecnt >= -1); |
2052 | |
2878 | |
2053 | assert (fdchangemax >= fdchangecnt); |
2879 | assert (fdchangemax >= fdchangecnt); |
2054 | for (i = 0; i < fdchangecnt; ++i) |
2880 | for (i = 0; i < fdchangecnt; ++i) |
2055 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2881 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2056 | |
2882 | |
2057 | assert (anfdmax >= 0); |
2883 | assert (anfdmax >= 0); |
2058 | for (i = 0; i < anfdmax; ++i) |
2884 | for (i = 0; i < anfdmax; ++i) |
|
|
2885 | { |
|
|
2886 | int j = 0; |
|
|
2887 | |
2059 | for (w = anfds [i].head; w; w = w->next) |
2888 | for (w = w2 = anfds [i].head; w; w = w->next) |
2060 | { |
2889 | { |
2061 | verify_watcher (EV_A_ (W)w); |
2890 | verify_watcher (EV_A_ (W)w); |
|
|
2891 | |
|
|
2892 | if (j++ & 1) |
|
|
2893 | { |
|
|
2894 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2895 | w2 = w2->next; |
|
|
2896 | } |
|
|
2897 | |
2062 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2898 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2063 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2899 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2064 | } |
2900 | } |
|
|
2901 | } |
2065 | |
2902 | |
2066 | assert (timermax >= timercnt); |
2903 | assert (timermax >= timercnt); |
2067 | verify_heap (EV_A_ timers, timercnt); |
2904 | verify_heap (EV_A_ timers, timercnt); |
2068 | |
2905 | |
2069 | #if EV_PERIODIC_ENABLE |
2906 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2115 | #endif |
2952 | #endif |
2116 | } |
2953 | } |
2117 | #endif |
2954 | #endif |
2118 | |
2955 | |
2119 | #if EV_MULTIPLICITY |
2956 | #if EV_MULTIPLICITY |
2120 | struct ev_loop * |
2957 | struct ev_loop * ecb_cold |
2121 | #else |
2958 | #else |
2122 | int |
2959 | int |
2123 | #endif |
2960 | #endif |
2124 | ev_default_loop (unsigned int flags) |
2961 | ev_default_loop (unsigned int flags) EV_THROW |
2125 | { |
2962 | { |
2126 | if (!ev_default_loop_ptr) |
2963 | if (!ev_default_loop_ptr) |
2127 | { |
2964 | { |
2128 | #if EV_MULTIPLICITY |
2965 | #if EV_MULTIPLICITY |
2129 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2966 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2148 | |
2985 | |
2149 | return ev_default_loop_ptr; |
2986 | return ev_default_loop_ptr; |
2150 | } |
2987 | } |
2151 | |
2988 | |
2152 | void |
2989 | void |
2153 | ev_loop_fork (EV_P) |
2990 | ev_loop_fork (EV_P) EV_THROW |
2154 | { |
2991 | { |
2155 | postfork = 1; /* must be in line with ev_default_fork */ |
2992 | postfork = 1; |
2156 | } |
2993 | } |
2157 | |
2994 | |
2158 | /*****************************************************************************/ |
2995 | /*****************************************************************************/ |
2159 | |
2996 | |
2160 | void |
2997 | void |
… | |
… | |
2162 | { |
2999 | { |
2163 | EV_CB_INVOKE ((W)w, revents); |
3000 | EV_CB_INVOKE ((W)w, revents); |
2164 | } |
3001 | } |
2165 | |
3002 | |
2166 | unsigned int |
3003 | unsigned int |
2167 | ev_pending_count (EV_P) |
3004 | ev_pending_count (EV_P) EV_THROW |
2168 | { |
3005 | { |
2169 | int pri; |
3006 | int pri; |
2170 | unsigned int count = 0; |
3007 | unsigned int count = 0; |
2171 | |
3008 | |
2172 | for (pri = NUMPRI; pri--; ) |
3009 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2176 | } |
3013 | } |
2177 | |
3014 | |
2178 | void noinline |
3015 | void noinline |
2179 | ev_invoke_pending (EV_P) |
3016 | ev_invoke_pending (EV_P) |
2180 | { |
3017 | { |
2181 | int pri; |
3018 | pendingpri = NUMPRI; |
2182 | |
3019 | |
2183 | for (pri = NUMPRI; pri--; ) |
3020 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3021 | { |
|
|
3022 | --pendingpri; |
|
|
3023 | |
2184 | while (pendingcnt [pri]) |
3024 | while (pendingcnt [pendingpri]) |
2185 | { |
3025 | { |
2186 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3026 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2187 | |
3027 | |
2188 | p->w->pending = 0; |
3028 | p->w->pending = 0; |
2189 | EV_CB_INVOKE (p->w, p->events); |
3029 | EV_CB_INVOKE (p->w, p->events); |
2190 | EV_FREQUENT_CHECK; |
3030 | EV_FREQUENT_CHECK; |
2191 | } |
3031 | } |
|
|
3032 | } |
2192 | } |
3033 | } |
2193 | |
3034 | |
2194 | #if EV_IDLE_ENABLE |
3035 | #if EV_IDLE_ENABLE |
2195 | /* make idle watchers pending. this handles the "call-idle */ |
3036 | /* make idle watchers pending. this handles the "call-idle */ |
2196 | /* only when higher priorities are idle" logic */ |
3037 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2286 | { |
3127 | { |
2287 | EV_FREQUENT_CHECK; |
3128 | EV_FREQUENT_CHECK; |
2288 | |
3129 | |
2289 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3130 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2290 | { |
3131 | { |
2291 | int feed_count = 0; |
|
|
2292 | |
|
|
2293 | do |
3132 | do |
2294 | { |
3133 | { |
2295 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3134 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2296 | |
3135 | |
2297 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3136 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2324 | } |
3163 | } |
2325 | } |
3164 | } |
2326 | |
3165 | |
2327 | /* simply recalculate all periodics */ |
3166 | /* simply recalculate all periodics */ |
2328 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3167 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2329 | static void noinline |
3168 | static void noinline ecb_cold |
2330 | periodics_reschedule (EV_P) |
3169 | periodics_reschedule (EV_P) |
2331 | { |
3170 | { |
2332 | int i; |
3171 | int i; |
2333 | |
3172 | |
2334 | /* adjust periodics after time jump */ |
3173 | /* adjust periodics after time jump */ |
… | |
… | |
2347 | reheap (periodics, periodiccnt); |
3186 | reheap (periodics, periodiccnt); |
2348 | } |
3187 | } |
2349 | #endif |
3188 | #endif |
2350 | |
3189 | |
2351 | /* adjust all timers by a given offset */ |
3190 | /* adjust all timers by a given offset */ |
2352 | static void noinline |
3191 | static void noinline ecb_cold |
2353 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3192 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2354 | { |
3193 | { |
2355 | int i; |
3194 | int i; |
2356 | |
3195 | |
2357 | for (i = 0; i < timercnt; ++i) |
3196 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2431 | |
3270 | |
2432 | mn_now = ev_rt_now; |
3271 | mn_now = ev_rt_now; |
2433 | } |
3272 | } |
2434 | } |
3273 | } |
2435 | |
3274 | |
2436 | void |
3275 | int |
2437 | ev_run (EV_P_ int flags) |
3276 | ev_run (EV_P_ int flags) |
2438 | { |
3277 | { |
2439 | #if EV_FEATURE_API |
3278 | #if EV_FEATURE_API |
2440 | ++loop_depth; |
3279 | ++loop_depth; |
2441 | #endif |
3280 | #endif |
… | |
… | |
2499 | ev_tstamp prev_mn_now = mn_now; |
3338 | ev_tstamp prev_mn_now = mn_now; |
2500 | |
3339 | |
2501 | /* update time to cancel out callback processing overhead */ |
3340 | /* update time to cancel out callback processing overhead */ |
2502 | time_update (EV_A_ 1e100); |
3341 | time_update (EV_A_ 1e100); |
2503 | |
3342 | |
|
|
3343 | /* from now on, we want a pipe-wake-up */ |
|
|
3344 | pipe_write_wanted = 1; |
|
|
3345 | |
|
|
3346 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3347 | |
2504 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3348 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2505 | { |
3349 | { |
2506 | waittime = MAX_BLOCKTIME; |
3350 | waittime = MAX_BLOCKTIME; |
2507 | |
3351 | |
2508 | if (timercnt) |
3352 | if (timercnt) |
2509 | { |
3353 | { |
… | |
… | |
2549 | #endif |
3393 | #endif |
2550 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3394 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2551 | backend_poll (EV_A_ waittime); |
3395 | backend_poll (EV_A_ waittime); |
2552 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3396 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2553 | |
3397 | |
|
|
3398 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3399 | |
|
|
3400 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3401 | if (pipe_write_skipped) |
|
|
3402 | { |
|
|
3403 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3404 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3405 | } |
|
|
3406 | |
|
|
3407 | |
2554 | /* update ev_rt_now, do magic */ |
3408 | /* update ev_rt_now, do magic */ |
2555 | time_update (EV_A_ waittime + sleeptime); |
3409 | time_update (EV_A_ waittime + sleeptime); |
2556 | } |
3410 | } |
2557 | |
3411 | |
2558 | /* queue pending timers and reschedule them */ |
3412 | /* queue pending timers and reschedule them */ |
… | |
… | |
2584 | loop_done = EVBREAK_CANCEL; |
3438 | loop_done = EVBREAK_CANCEL; |
2585 | |
3439 | |
2586 | #if EV_FEATURE_API |
3440 | #if EV_FEATURE_API |
2587 | --loop_depth; |
3441 | --loop_depth; |
2588 | #endif |
3442 | #endif |
|
|
3443 | |
|
|
3444 | return activecnt; |
2589 | } |
3445 | } |
2590 | |
3446 | |
2591 | void |
3447 | void |
2592 | ev_break (EV_P_ int how) |
3448 | ev_break (EV_P_ int how) EV_THROW |
2593 | { |
3449 | { |
2594 | loop_done = how; |
3450 | loop_done = how; |
2595 | } |
3451 | } |
2596 | |
3452 | |
2597 | void |
3453 | void |
2598 | ev_ref (EV_P) |
3454 | ev_ref (EV_P) EV_THROW |
2599 | { |
3455 | { |
2600 | ++activecnt; |
3456 | ++activecnt; |
2601 | } |
3457 | } |
2602 | |
3458 | |
2603 | void |
3459 | void |
2604 | ev_unref (EV_P) |
3460 | ev_unref (EV_P) EV_THROW |
2605 | { |
3461 | { |
2606 | --activecnt; |
3462 | --activecnt; |
2607 | } |
3463 | } |
2608 | |
3464 | |
2609 | void |
3465 | void |
2610 | ev_now_update (EV_P) |
3466 | ev_now_update (EV_P) EV_THROW |
2611 | { |
3467 | { |
2612 | time_update (EV_A_ 1e100); |
3468 | time_update (EV_A_ 1e100); |
2613 | } |
3469 | } |
2614 | |
3470 | |
2615 | void |
3471 | void |
2616 | ev_suspend (EV_P) |
3472 | ev_suspend (EV_P) EV_THROW |
2617 | { |
3473 | { |
2618 | ev_now_update (EV_A); |
3474 | ev_now_update (EV_A); |
2619 | } |
3475 | } |
2620 | |
3476 | |
2621 | void |
3477 | void |
2622 | ev_resume (EV_P) |
3478 | ev_resume (EV_P) EV_THROW |
2623 | { |
3479 | { |
2624 | ev_tstamp mn_prev = mn_now; |
3480 | ev_tstamp mn_prev = mn_now; |
2625 | |
3481 | |
2626 | ev_now_update (EV_A); |
3482 | ev_now_update (EV_A); |
2627 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3483 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2666 | w->pending = 0; |
3522 | w->pending = 0; |
2667 | } |
3523 | } |
2668 | } |
3524 | } |
2669 | |
3525 | |
2670 | int |
3526 | int |
2671 | ev_clear_pending (EV_P_ void *w) |
3527 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2672 | { |
3528 | { |
2673 | W w_ = (W)w; |
3529 | W w_ = (W)w; |
2674 | int pending = w_->pending; |
3530 | int pending = w_->pending; |
2675 | |
3531 | |
2676 | if (expect_true (pending)) |
3532 | if (expect_true (pending)) |
… | |
… | |
2709 | } |
3565 | } |
2710 | |
3566 | |
2711 | /*****************************************************************************/ |
3567 | /*****************************************************************************/ |
2712 | |
3568 | |
2713 | void noinline |
3569 | void noinline |
2714 | ev_io_start (EV_P_ ev_io *w) |
3570 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2715 | { |
3571 | { |
2716 | int fd = w->fd; |
3572 | int fd = w->fd; |
2717 | |
3573 | |
2718 | if (expect_false (ev_is_active (w))) |
3574 | if (expect_false (ev_is_active (w))) |
2719 | return; |
3575 | return; |
… | |
… | |
2725 | |
3581 | |
2726 | ev_start (EV_A_ (W)w, 1); |
3582 | ev_start (EV_A_ (W)w, 1); |
2727 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3583 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2728 | wlist_add (&anfds[fd].head, (WL)w); |
3584 | wlist_add (&anfds[fd].head, (WL)w); |
2729 | |
3585 | |
|
|
3586 | /* common bug, apparently */ |
|
|
3587 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3588 | |
2730 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3589 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2731 | w->events &= ~EV__IOFDSET; |
3590 | w->events &= ~EV__IOFDSET; |
2732 | |
3591 | |
2733 | EV_FREQUENT_CHECK; |
3592 | EV_FREQUENT_CHECK; |
2734 | } |
3593 | } |
2735 | |
3594 | |
2736 | void noinline |
3595 | void noinline |
2737 | ev_io_stop (EV_P_ ev_io *w) |
3596 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2738 | { |
3597 | { |
2739 | clear_pending (EV_A_ (W)w); |
3598 | clear_pending (EV_A_ (W)w); |
2740 | if (expect_false (!ev_is_active (w))) |
3599 | if (expect_false (!ev_is_active (w))) |
2741 | return; |
3600 | return; |
2742 | |
3601 | |
… | |
… | |
2751 | |
3610 | |
2752 | EV_FREQUENT_CHECK; |
3611 | EV_FREQUENT_CHECK; |
2753 | } |
3612 | } |
2754 | |
3613 | |
2755 | void noinline |
3614 | void noinline |
2756 | ev_timer_start (EV_P_ ev_timer *w) |
3615 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2757 | { |
3616 | { |
2758 | if (expect_false (ev_is_active (w))) |
3617 | if (expect_false (ev_is_active (w))) |
2759 | return; |
3618 | return; |
2760 | |
3619 | |
2761 | ev_at (w) += mn_now; |
3620 | ev_at (w) += mn_now; |
… | |
… | |
2775 | |
3634 | |
2776 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3635 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2777 | } |
3636 | } |
2778 | |
3637 | |
2779 | void noinline |
3638 | void noinline |
2780 | ev_timer_stop (EV_P_ ev_timer *w) |
3639 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2781 | { |
3640 | { |
2782 | clear_pending (EV_A_ (W)w); |
3641 | clear_pending (EV_A_ (W)w); |
2783 | if (expect_false (!ev_is_active (w))) |
3642 | if (expect_false (!ev_is_active (w))) |
2784 | return; |
3643 | return; |
2785 | |
3644 | |
… | |
… | |
2805 | |
3664 | |
2806 | EV_FREQUENT_CHECK; |
3665 | EV_FREQUENT_CHECK; |
2807 | } |
3666 | } |
2808 | |
3667 | |
2809 | void noinline |
3668 | void noinline |
2810 | ev_timer_again (EV_P_ ev_timer *w) |
3669 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2811 | { |
3670 | { |
2812 | EV_FREQUENT_CHECK; |
3671 | EV_FREQUENT_CHECK; |
|
|
3672 | |
|
|
3673 | clear_pending (EV_A_ (W)w); |
2813 | |
3674 | |
2814 | if (ev_is_active (w)) |
3675 | if (ev_is_active (w)) |
2815 | { |
3676 | { |
2816 | if (w->repeat) |
3677 | if (w->repeat) |
2817 | { |
3678 | { |
… | |
… | |
2830 | |
3691 | |
2831 | EV_FREQUENT_CHECK; |
3692 | EV_FREQUENT_CHECK; |
2832 | } |
3693 | } |
2833 | |
3694 | |
2834 | ev_tstamp |
3695 | ev_tstamp |
2835 | ev_timer_remaining (EV_P_ ev_timer *w) |
3696 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2836 | { |
3697 | { |
2837 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3698 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2838 | } |
3699 | } |
2839 | |
3700 | |
2840 | #if EV_PERIODIC_ENABLE |
3701 | #if EV_PERIODIC_ENABLE |
2841 | void noinline |
3702 | void noinline |
2842 | ev_periodic_start (EV_P_ ev_periodic *w) |
3703 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2843 | { |
3704 | { |
2844 | if (expect_false (ev_is_active (w))) |
3705 | if (expect_false (ev_is_active (w))) |
2845 | return; |
3706 | return; |
2846 | |
3707 | |
2847 | if (w->reschedule_cb) |
3708 | if (w->reschedule_cb) |
… | |
… | |
2867 | |
3728 | |
2868 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3729 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2869 | } |
3730 | } |
2870 | |
3731 | |
2871 | void noinline |
3732 | void noinline |
2872 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3733 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2873 | { |
3734 | { |
2874 | clear_pending (EV_A_ (W)w); |
3735 | clear_pending (EV_A_ (W)w); |
2875 | if (expect_false (!ev_is_active (w))) |
3736 | if (expect_false (!ev_is_active (w))) |
2876 | return; |
3737 | return; |
2877 | |
3738 | |
… | |
… | |
2895 | |
3756 | |
2896 | EV_FREQUENT_CHECK; |
3757 | EV_FREQUENT_CHECK; |
2897 | } |
3758 | } |
2898 | |
3759 | |
2899 | void noinline |
3760 | void noinline |
2900 | ev_periodic_again (EV_P_ ev_periodic *w) |
3761 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2901 | { |
3762 | { |
2902 | /* TODO: use adjustheap and recalculation */ |
3763 | /* TODO: use adjustheap and recalculation */ |
2903 | ev_periodic_stop (EV_A_ w); |
3764 | ev_periodic_stop (EV_A_ w); |
2904 | ev_periodic_start (EV_A_ w); |
3765 | ev_periodic_start (EV_A_ w); |
2905 | } |
3766 | } |
… | |
… | |
2910 | #endif |
3771 | #endif |
2911 | |
3772 | |
2912 | #if EV_SIGNAL_ENABLE |
3773 | #if EV_SIGNAL_ENABLE |
2913 | |
3774 | |
2914 | void noinline |
3775 | void noinline |
2915 | ev_signal_start (EV_P_ ev_signal *w) |
3776 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2916 | { |
3777 | { |
2917 | if (expect_false (ev_is_active (w))) |
3778 | if (expect_false (ev_is_active (w))) |
2918 | return; |
3779 | return; |
2919 | |
3780 | |
2920 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3781 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2922 | #if EV_MULTIPLICITY |
3783 | #if EV_MULTIPLICITY |
2923 | assert (("libev: a signal must not be attached to two different loops", |
3784 | assert (("libev: a signal must not be attached to two different loops", |
2924 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3785 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2925 | |
3786 | |
2926 | signals [w->signum - 1].loop = EV_A; |
3787 | signals [w->signum - 1].loop = EV_A; |
|
|
3788 | ECB_MEMORY_FENCE_RELEASE; |
2927 | #endif |
3789 | #endif |
2928 | |
3790 | |
2929 | EV_FREQUENT_CHECK; |
3791 | EV_FREQUENT_CHECK; |
2930 | |
3792 | |
2931 | #if EV_USE_SIGNALFD |
3793 | #if EV_USE_SIGNALFD |
… | |
… | |
2991 | |
3853 | |
2992 | EV_FREQUENT_CHECK; |
3854 | EV_FREQUENT_CHECK; |
2993 | } |
3855 | } |
2994 | |
3856 | |
2995 | void noinline |
3857 | void noinline |
2996 | ev_signal_stop (EV_P_ ev_signal *w) |
3858 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2997 | { |
3859 | { |
2998 | clear_pending (EV_A_ (W)w); |
3860 | clear_pending (EV_A_ (W)w); |
2999 | if (expect_false (!ev_is_active (w))) |
3861 | if (expect_false (!ev_is_active (w))) |
3000 | return; |
3862 | return; |
3001 | |
3863 | |
… | |
… | |
3032 | #endif |
3894 | #endif |
3033 | |
3895 | |
3034 | #if EV_CHILD_ENABLE |
3896 | #if EV_CHILD_ENABLE |
3035 | |
3897 | |
3036 | void |
3898 | void |
3037 | ev_child_start (EV_P_ ev_child *w) |
3899 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3038 | { |
3900 | { |
3039 | #if EV_MULTIPLICITY |
3901 | #if EV_MULTIPLICITY |
3040 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3902 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3041 | #endif |
3903 | #endif |
3042 | if (expect_false (ev_is_active (w))) |
3904 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3049 | |
3911 | |
3050 | EV_FREQUENT_CHECK; |
3912 | EV_FREQUENT_CHECK; |
3051 | } |
3913 | } |
3052 | |
3914 | |
3053 | void |
3915 | void |
3054 | ev_child_stop (EV_P_ ev_child *w) |
3916 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3055 | { |
3917 | { |
3056 | clear_pending (EV_A_ (W)w); |
3918 | clear_pending (EV_A_ (W)w); |
3057 | if (expect_false (!ev_is_active (w))) |
3919 | if (expect_false (!ev_is_active (w))) |
3058 | return; |
3920 | return; |
3059 | |
3921 | |
… | |
… | |
3086 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3948 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3087 | |
3949 | |
3088 | static void noinline |
3950 | static void noinline |
3089 | infy_add (EV_P_ ev_stat *w) |
3951 | infy_add (EV_P_ ev_stat *w) |
3090 | { |
3952 | { |
3091 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3953 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3954 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3955 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3956 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3092 | |
3957 | |
3093 | if (w->wd >= 0) |
3958 | if (w->wd >= 0) |
3094 | { |
3959 | { |
3095 | struct statfs sfs; |
3960 | struct statfs sfs; |
3096 | |
3961 | |
… | |
… | |
3100 | |
3965 | |
3101 | if (!fs_2625) |
3966 | if (!fs_2625) |
3102 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3967 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3103 | else if (!statfs (w->path, &sfs) |
3968 | else if (!statfs (w->path, &sfs) |
3104 | && (sfs.f_type == 0x1373 /* devfs */ |
3969 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3970 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3971 | || sfs.f_type == 0x4d44 /* msdos */ |
3105 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3972 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3973 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3974 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3975 | || sfs.f_type == 0x5346544e /* ntfs */ |
3106 | || sfs.f_type == 0x3153464a /* jfs */ |
3976 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3977 | || sfs.f_type == 0x9123683e /* btrfs */ |
3107 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3978 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3108 | || sfs.f_type == 0x01021994 /* tempfs */ |
3979 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3109 | || sfs.f_type == 0x58465342 /* xfs */)) |
3980 | || sfs.f_type == 0x58465342 /* xfs */)) |
3110 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3981 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3111 | else |
3982 | else |
3112 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3983 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3113 | } |
3984 | } |
… | |
… | |
3211 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4082 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3212 | ofs += sizeof (struct inotify_event) + ev->len; |
4083 | ofs += sizeof (struct inotify_event) + ev->len; |
3213 | } |
4084 | } |
3214 | } |
4085 | } |
3215 | |
4086 | |
3216 | inline_size void |
4087 | inline_size void ecb_cold |
3217 | ev_check_2625 (EV_P) |
4088 | ev_check_2625 (EV_P) |
3218 | { |
4089 | { |
3219 | /* kernels < 2.6.25 are borked |
4090 | /* kernels < 2.6.25 are borked |
3220 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4091 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3221 | */ |
4092 | */ |
… | |
… | |
3226 | } |
4097 | } |
3227 | |
4098 | |
3228 | inline_size int |
4099 | inline_size int |
3229 | infy_newfd (void) |
4100 | infy_newfd (void) |
3230 | { |
4101 | { |
3231 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4102 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3232 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4103 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3233 | if (fd >= 0) |
4104 | if (fd >= 0) |
3234 | return fd; |
4105 | return fd; |
3235 | #endif |
4106 | #endif |
3236 | return inotify_init (); |
4107 | return inotify_init (); |
… | |
… | |
3311 | #else |
4182 | #else |
3312 | # define EV_LSTAT(p,b) lstat (p, b) |
4183 | # define EV_LSTAT(p,b) lstat (p, b) |
3313 | #endif |
4184 | #endif |
3314 | |
4185 | |
3315 | void |
4186 | void |
3316 | ev_stat_stat (EV_P_ ev_stat *w) |
4187 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3317 | { |
4188 | { |
3318 | if (lstat (w->path, &w->attr) < 0) |
4189 | if (lstat (w->path, &w->attr) < 0) |
3319 | w->attr.st_nlink = 0; |
4190 | w->attr.st_nlink = 0; |
3320 | else if (!w->attr.st_nlink) |
4191 | else if (!w->attr.st_nlink) |
3321 | w->attr.st_nlink = 1; |
4192 | w->attr.st_nlink = 1; |
… | |
… | |
3360 | ev_feed_event (EV_A_ w, EV_STAT); |
4231 | ev_feed_event (EV_A_ w, EV_STAT); |
3361 | } |
4232 | } |
3362 | } |
4233 | } |
3363 | |
4234 | |
3364 | void |
4235 | void |
3365 | ev_stat_start (EV_P_ ev_stat *w) |
4236 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3366 | { |
4237 | { |
3367 | if (expect_false (ev_is_active (w))) |
4238 | if (expect_false (ev_is_active (w))) |
3368 | return; |
4239 | return; |
3369 | |
4240 | |
3370 | ev_stat_stat (EV_A_ w); |
4241 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3391 | |
4262 | |
3392 | EV_FREQUENT_CHECK; |
4263 | EV_FREQUENT_CHECK; |
3393 | } |
4264 | } |
3394 | |
4265 | |
3395 | void |
4266 | void |
3396 | ev_stat_stop (EV_P_ ev_stat *w) |
4267 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3397 | { |
4268 | { |
3398 | clear_pending (EV_A_ (W)w); |
4269 | clear_pending (EV_A_ (W)w); |
3399 | if (expect_false (!ev_is_active (w))) |
4270 | if (expect_false (!ev_is_active (w))) |
3400 | return; |
4271 | return; |
3401 | |
4272 | |
… | |
… | |
3417 | } |
4288 | } |
3418 | #endif |
4289 | #endif |
3419 | |
4290 | |
3420 | #if EV_IDLE_ENABLE |
4291 | #if EV_IDLE_ENABLE |
3421 | void |
4292 | void |
3422 | ev_idle_start (EV_P_ ev_idle *w) |
4293 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3423 | { |
4294 | { |
3424 | if (expect_false (ev_is_active (w))) |
4295 | if (expect_false (ev_is_active (w))) |
3425 | return; |
4296 | return; |
3426 | |
4297 | |
3427 | pri_adjust (EV_A_ (W)w); |
4298 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3440 | |
4311 | |
3441 | EV_FREQUENT_CHECK; |
4312 | EV_FREQUENT_CHECK; |
3442 | } |
4313 | } |
3443 | |
4314 | |
3444 | void |
4315 | void |
3445 | ev_idle_stop (EV_P_ ev_idle *w) |
4316 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3446 | { |
4317 | { |
3447 | clear_pending (EV_A_ (W)w); |
4318 | clear_pending (EV_A_ (W)w); |
3448 | if (expect_false (!ev_is_active (w))) |
4319 | if (expect_false (!ev_is_active (w))) |
3449 | return; |
4320 | return; |
3450 | |
4321 | |
… | |
… | |
3464 | } |
4335 | } |
3465 | #endif |
4336 | #endif |
3466 | |
4337 | |
3467 | #if EV_PREPARE_ENABLE |
4338 | #if EV_PREPARE_ENABLE |
3468 | void |
4339 | void |
3469 | ev_prepare_start (EV_P_ ev_prepare *w) |
4340 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3470 | { |
4341 | { |
3471 | if (expect_false (ev_is_active (w))) |
4342 | if (expect_false (ev_is_active (w))) |
3472 | return; |
4343 | return; |
3473 | |
4344 | |
3474 | EV_FREQUENT_CHECK; |
4345 | EV_FREQUENT_CHECK; |
… | |
… | |
3479 | |
4350 | |
3480 | EV_FREQUENT_CHECK; |
4351 | EV_FREQUENT_CHECK; |
3481 | } |
4352 | } |
3482 | |
4353 | |
3483 | void |
4354 | void |
3484 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4355 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3485 | { |
4356 | { |
3486 | clear_pending (EV_A_ (W)w); |
4357 | clear_pending (EV_A_ (W)w); |
3487 | if (expect_false (!ev_is_active (w))) |
4358 | if (expect_false (!ev_is_active (w))) |
3488 | return; |
4359 | return; |
3489 | |
4360 | |
… | |
… | |
3502 | } |
4373 | } |
3503 | #endif |
4374 | #endif |
3504 | |
4375 | |
3505 | #if EV_CHECK_ENABLE |
4376 | #if EV_CHECK_ENABLE |
3506 | void |
4377 | void |
3507 | ev_check_start (EV_P_ ev_check *w) |
4378 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3508 | { |
4379 | { |
3509 | if (expect_false (ev_is_active (w))) |
4380 | if (expect_false (ev_is_active (w))) |
3510 | return; |
4381 | return; |
3511 | |
4382 | |
3512 | EV_FREQUENT_CHECK; |
4383 | EV_FREQUENT_CHECK; |
… | |
… | |
3517 | |
4388 | |
3518 | EV_FREQUENT_CHECK; |
4389 | EV_FREQUENT_CHECK; |
3519 | } |
4390 | } |
3520 | |
4391 | |
3521 | void |
4392 | void |
3522 | ev_check_stop (EV_P_ ev_check *w) |
4393 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3523 | { |
4394 | { |
3524 | clear_pending (EV_A_ (W)w); |
4395 | clear_pending (EV_A_ (W)w); |
3525 | if (expect_false (!ev_is_active (w))) |
4396 | if (expect_false (!ev_is_active (w))) |
3526 | return; |
4397 | return; |
3527 | |
4398 | |
… | |
… | |
3540 | } |
4411 | } |
3541 | #endif |
4412 | #endif |
3542 | |
4413 | |
3543 | #if EV_EMBED_ENABLE |
4414 | #if EV_EMBED_ENABLE |
3544 | void noinline |
4415 | void noinline |
3545 | ev_embed_sweep (EV_P_ ev_embed *w) |
4416 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3546 | { |
4417 | { |
3547 | ev_run (w->other, EVRUN_NOWAIT); |
4418 | ev_run (w->other, EVRUN_NOWAIT); |
3548 | } |
4419 | } |
3549 | |
4420 | |
3550 | static void |
4421 | static void |
… | |
… | |
3598 | ev_idle_stop (EV_A_ idle); |
4469 | ev_idle_stop (EV_A_ idle); |
3599 | } |
4470 | } |
3600 | #endif |
4471 | #endif |
3601 | |
4472 | |
3602 | void |
4473 | void |
3603 | ev_embed_start (EV_P_ ev_embed *w) |
4474 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3604 | { |
4475 | { |
3605 | if (expect_false (ev_is_active (w))) |
4476 | if (expect_false (ev_is_active (w))) |
3606 | return; |
4477 | return; |
3607 | |
4478 | |
3608 | { |
4479 | { |
… | |
… | |
3629 | |
4500 | |
3630 | EV_FREQUENT_CHECK; |
4501 | EV_FREQUENT_CHECK; |
3631 | } |
4502 | } |
3632 | |
4503 | |
3633 | void |
4504 | void |
3634 | ev_embed_stop (EV_P_ ev_embed *w) |
4505 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3635 | { |
4506 | { |
3636 | clear_pending (EV_A_ (W)w); |
4507 | clear_pending (EV_A_ (W)w); |
3637 | if (expect_false (!ev_is_active (w))) |
4508 | if (expect_false (!ev_is_active (w))) |
3638 | return; |
4509 | return; |
3639 | |
4510 | |
… | |
… | |
3649 | } |
4520 | } |
3650 | #endif |
4521 | #endif |
3651 | |
4522 | |
3652 | #if EV_FORK_ENABLE |
4523 | #if EV_FORK_ENABLE |
3653 | void |
4524 | void |
3654 | ev_fork_start (EV_P_ ev_fork *w) |
4525 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3655 | { |
4526 | { |
3656 | if (expect_false (ev_is_active (w))) |
4527 | if (expect_false (ev_is_active (w))) |
3657 | return; |
4528 | return; |
3658 | |
4529 | |
3659 | EV_FREQUENT_CHECK; |
4530 | EV_FREQUENT_CHECK; |
… | |
… | |
3664 | |
4535 | |
3665 | EV_FREQUENT_CHECK; |
4536 | EV_FREQUENT_CHECK; |
3666 | } |
4537 | } |
3667 | |
4538 | |
3668 | void |
4539 | void |
3669 | ev_fork_stop (EV_P_ ev_fork *w) |
4540 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3670 | { |
4541 | { |
3671 | clear_pending (EV_A_ (W)w); |
4542 | clear_pending (EV_A_ (W)w); |
3672 | if (expect_false (!ev_is_active (w))) |
4543 | if (expect_false (!ev_is_active (w))) |
3673 | return; |
4544 | return; |
3674 | |
4545 | |
… | |
… | |
3687 | } |
4558 | } |
3688 | #endif |
4559 | #endif |
3689 | |
4560 | |
3690 | #if EV_CLEANUP_ENABLE |
4561 | #if EV_CLEANUP_ENABLE |
3691 | void |
4562 | void |
3692 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4563 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3693 | { |
4564 | { |
3694 | if (expect_false (ev_is_active (w))) |
4565 | if (expect_false (ev_is_active (w))) |
3695 | return; |
4566 | return; |
3696 | |
4567 | |
3697 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
… | |
… | |
3704 | ev_unref (EV_A); |
4575 | ev_unref (EV_A); |
3705 | EV_FREQUENT_CHECK; |
4576 | EV_FREQUENT_CHECK; |
3706 | } |
4577 | } |
3707 | |
4578 | |
3708 | void |
4579 | void |
3709 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4580 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3710 | { |
4581 | { |
3711 | clear_pending (EV_A_ (W)w); |
4582 | clear_pending (EV_A_ (W)w); |
3712 | if (expect_false (!ev_is_active (w))) |
4583 | if (expect_false (!ev_is_active (w))) |
3713 | return; |
4584 | return; |
3714 | |
4585 | |
… | |
… | |
3728 | } |
4599 | } |
3729 | #endif |
4600 | #endif |
3730 | |
4601 | |
3731 | #if EV_ASYNC_ENABLE |
4602 | #if EV_ASYNC_ENABLE |
3732 | void |
4603 | void |
3733 | ev_async_start (EV_P_ ev_async *w) |
4604 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3734 | { |
4605 | { |
3735 | if (expect_false (ev_is_active (w))) |
4606 | if (expect_false (ev_is_active (w))) |
3736 | return; |
4607 | return; |
3737 | |
4608 | |
3738 | w->sent = 0; |
4609 | w->sent = 0; |
… | |
… | |
3747 | |
4618 | |
3748 | EV_FREQUENT_CHECK; |
4619 | EV_FREQUENT_CHECK; |
3749 | } |
4620 | } |
3750 | |
4621 | |
3751 | void |
4622 | void |
3752 | ev_async_stop (EV_P_ ev_async *w) |
4623 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3753 | { |
4624 | { |
3754 | clear_pending (EV_A_ (W)w); |
4625 | clear_pending (EV_A_ (W)w); |
3755 | if (expect_false (!ev_is_active (w))) |
4626 | if (expect_false (!ev_is_active (w))) |
3756 | return; |
4627 | return; |
3757 | |
4628 | |
… | |
… | |
3768 | |
4639 | |
3769 | EV_FREQUENT_CHECK; |
4640 | EV_FREQUENT_CHECK; |
3770 | } |
4641 | } |
3771 | |
4642 | |
3772 | void |
4643 | void |
3773 | ev_async_send (EV_P_ ev_async *w) |
4644 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3774 | { |
4645 | { |
3775 | w->sent = 1; |
4646 | w->sent = 1; |
3776 | evpipe_write (EV_A_ &async_pending); |
4647 | evpipe_write (EV_A_ &async_pending); |
3777 | } |
4648 | } |
3778 | #endif |
4649 | #endif |
… | |
… | |
3815 | |
4686 | |
3816 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4687 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3817 | } |
4688 | } |
3818 | |
4689 | |
3819 | void |
4690 | void |
3820 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4691 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3821 | { |
4692 | { |
3822 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4693 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3823 | |
4694 | |
3824 | if (expect_false (!once)) |
4695 | if (expect_false (!once)) |
3825 | { |
4696 | { |
… | |
… | |
3846 | } |
4717 | } |
3847 | |
4718 | |
3848 | /*****************************************************************************/ |
4719 | /*****************************************************************************/ |
3849 | |
4720 | |
3850 | #if EV_WALK_ENABLE |
4721 | #if EV_WALK_ENABLE |
3851 | void |
4722 | void ecb_cold |
3852 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4723 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3853 | { |
4724 | { |
3854 | int i, j; |
4725 | int i, j; |
3855 | ev_watcher_list *wl, *wn; |
4726 | ev_watcher_list *wl, *wn; |
3856 | |
4727 | |
3857 | if (types & (EV_IO | EV_EMBED)) |
4728 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3900 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4771 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3901 | #endif |
4772 | #endif |
3902 | |
4773 | |
3903 | #if EV_IDLE_ENABLE |
4774 | #if EV_IDLE_ENABLE |
3904 | if (types & EV_IDLE) |
4775 | if (types & EV_IDLE) |
3905 | for (j = NUMPRI; i--; ) |
4776 | for (j = NUMPRI; j--; ) |
3906 | for (i = idlecnt [j]; i--; ) |
4777 | for (i = idlecnt [j]; i--; ) |
3907 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4778 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3908 | #endif |
4779 | #endif |
3909 | |
4780 | |
3910 | #if EV_FORK_ENABLE |
4781 | #if EV_FORK_ENABLE |
… | |
… | |
3963 | |
4834 | |
3964 | #if EV_MULTIPLICITY |
4835 | #if EV_MULTIPLICITY |
3965 | #include "ev_wrap.h" |
4836 | #include "ev_wrap.h" |
3966 | #endif |
4837 | #endif |
3967 | |
4838 | |
3968 | EV_CPP(}) |
|
|
3969 | |
|
|