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 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
237 | /* to make it compile regardless, just remove the above line, */ |
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238 | /* but consider reporting it, too! :) */ |
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239 | # define EV_NSIG 65 |
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240 | #endif |
247 | #endif |
241 | |
248 | |
242 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
243 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
244 | #endif |
251 | #endif |
245 | |
252 | |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
247 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
249 | # else |
256 | # else |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
258 | # endif |
252 | #endif |
259 | #endif |
253 | |
260 | |
254 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
264 | # else |
258 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
266 | # endif |
260 | #endif |
267 | #endif |
… | |
… | |
347 | |
354 | |
348 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
357 | #endif |
351 | |
358 | |
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359 | #ifdef ANDROID |
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360 | /* supposedly, android doesn't typedef fd_mask */ |
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361 | # undef EV_USE_SELECT |
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362 | # define EV_USE_SELECT 0 |
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363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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364 | # undef EV_USE_CLOCK_SYSCALL |
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365 | # define EV_USE_CLOCK_SYSCALL 0 |
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366 | #endif |
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367 | |
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368 | /* aix's poll.h seems to cause lots of trouble */ |
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369 | #ifdef _AIX |
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370 | /* AIX has a completely broken poll.h header */ |
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371 | # undef EV_USE_POLL |
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372 | # define EV_USE_POLL 0 |
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373 | #endif |
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374 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
375 | /* 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. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
360 | # else |
383 | # else |
… | |
… | |
363 | # endif |
386 | # endif |
364 | #endif |
387 | #endif |
365 | |
388 | |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
389 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
367 | |
390 | |
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 |
391 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
393 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
394 | #endif |
378 | |
395 | |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
387 | #endif |
404 | #endif |
388 | |
405 | |
389 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
408 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
409 | # include <sys/select.h> |
393 | # endif |
410 | # endif |
394 | #endif |
411 | #endif |
395 | |
412 | |
396 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
416 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
403 | # endif |
420 | # 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 |
421 | #endif |
409 | |
422 | |
410 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
424 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
425 | # include <stdint.h> |
… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
477 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
478 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
479 | #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) |
480 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
481 | |
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482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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483 | /* ECB.H BEGIN */ |
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484 | /* |
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485 | * libecb - http://software.schmorp.de/pkg/libecb |
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486 | * |
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487 | * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> |
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488 | * Copyright (©) 2011 Emanuele Giaquinta |
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489 | * All rights reserved. |
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490 | * |
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491 | * Redistribution and use in source and binary forms, with or without modifica- |
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492 | * tion, are permitted provided that the following conditions are met: |
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493 | * |
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494 | * 1. Redistributions of source code must retain the above copyright notice, |
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495 | * this list of conditions and the following disclaimer. |
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496 | * |
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497 | * 2. Redistributions in binary form must reproduce the above copyright |
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498 | * notice, this list of conditions and the following disclaimer in the |
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499 | * documentation and/or other materials provided with the distribution. |
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500 | * |
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501 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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502 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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503 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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504 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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505 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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509 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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511 | */ |
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512 | |
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513 | #ifndef ECB_H |
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514 | #define ECB_H |
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515 | |
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516 | /* 16 bits major, 16 bits minor */ |
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517 | #define ECB_VERSION 0x00010003 |
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518 | |
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519 | #ifdef _WIN32 |
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520 | typedef signed char int8_t; |
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521 | typedef unsigned char uint8_t; |
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522 | typedef signed short int16_t; |
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523 | typedef unsigned short uint16_t; |
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524 | typedef signed int int32_t; |
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525 | typedef unsigned int uint32_t; |
469 | #if __GNUC__ >= 4 |
526 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
527 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
528 | typedef unsigned long long uint64_t; |
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529 | #else /* _MSC_VER || __BORLANDC__ */ |
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530 | typedef signed __int64 int64_t; |
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531 | typedef unsigned __int64 uint64_t; |
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532 | #endif |
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533 | #ifdef _WIN64 |
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534 | #define ECB_PTRSIZE 8 |
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535 | typedef uint64_t uintptr_t; |
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536 | typedef int64_t intptr_t; |
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537 | #else |
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538 | #define ECB_PTRSIZE 4 |
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539 | typedef uint32_t uintptr_t; |
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540 | typedef int32_t intptr_t; |
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541 | #endif |
472 | #else |
542 | #else |
473 | # define expect(expr,value) (expr) |
543 | #include <inttypes.h> |
474 | # define noinline |
544 | #if UINTMAX_MAX > 0xffffffffU |
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
545 | #define ECB_PTRSIZE 8 |
476 | # define inline |
546 | #else |
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547 | #define ECB_PTRSIZE 4 |
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548 | #endif |
477 | # endif |
549 | #endif |
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550 | |
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551 | /* work around x32 idiocy by defining proper macros */ |
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552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
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553 | #if _ILP32 |
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554 | #define ECB_AMD64_X32 1 |
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555 | #else |
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556 | #define ECB_AMD64 1 |
478 | #endif |
557 | #endif |
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558 | #endif |
479 | |
559 | |
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560 | /* many compilers define _GNUC_ to some versions but then only implement |
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561 | * what their idiot authors think are the "more important" extensions, |
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562 | * causing enormous grief in return for some better fake benchmark numbers. |
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563 | * or so. |
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564 | * we try to detect these and simply assume they are not gcc - if they have |
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565 | * an issue with that they should have done it right in the first place. |
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566 | */ |
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567 | #ifndef ECB_GCC_VERSION |
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568 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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569 | #define ECB_GCC_VERSION(major,minor) 0 |
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570 | #else |
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571 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
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572 | #endif |
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573 | #endif |
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574 | |
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575 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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576 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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577 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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578 | #define ECB_CPP (__cplusplus+0) |
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579 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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580 | |
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581 | #if ECB_CPP |
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582 | #define ECB_EXTERN_C extern "C" |
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583 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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584 | #define ECB_EXTERN_C_END } |
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585 | #else |
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586 | #define ECB_EXTERN_C extern |
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587 | #define ECB_EXTERN_C_BEG |
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588 | #define ECB_EXTERN_C_END |
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589 | #endif |
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590 | |
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591 | /*****************************************************************************/ |
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592 | |
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593 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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594 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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595 | |
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596 | #if ECB_NO_THREADS |
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597 | #define ECB_NO_SMP 1 |
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598 | #endif |
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599 | |
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600 | #if ECB_NO_SMP |
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601 | #define ECB_MEMORY_FENCE do { } while (0) |
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602 | #endif |
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603 | |
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604 | #ifndef ECB_MEMORY_FENCE |
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605 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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606 | #if __i386 || __i386__ |
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607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
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608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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610 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
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611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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612 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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613 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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614 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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616 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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617 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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619 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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620 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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622 | #elif (__sparc || __sparc__) && !__sparcv8 |
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623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
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624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
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626 | #elif defined __s390__ || defined __s390x__ |
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627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
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628 | #elif defined __mips__ |
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629 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
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630 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
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631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
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632 | #elif defined __alpha__ |
|
|
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
634 | #elif defined __hppa__ |
|
|
635 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
636 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
637 | #elif defined __ia64__ |
|
|
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
639 | #elif defined __m68k__ |
|
|
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
641 | #elif defined __m88k__ |
|
|
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
643 | #elif defined __sh__ |
|
|
644 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
645 | #endif |
|
|
646 | #endif |
|
|
647 | #endif |
|
|
648 | |
|
|
649 | #ifndef ECB_MEMORY_FENCE |
|
|
650 | #if ECB_GCC_VERSION(4,7) |
|
|
651 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
652 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
653 | |
|
|
654 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
655 | * without risking compile time errors with other compilers. We *could* |
|
|
656 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
657 | * around this shit time and again. |
|
|
658 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
659 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
661 | */ |
|
|
662 | |
|
|
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
665 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
666 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
667 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
668 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
669 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
670 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
671 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
672 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
673 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
674 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
675 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
676 | #elif defined _WIN32 |
|
|
677 | #include <WinNT.h> |
|
|
678 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
679 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
680 | #include <mbarrier.h> |
|
|
681 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
682 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
683 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
684 | #elif __xlC__ |
|
|
685 | #define ECB_MEMORY_FENCE __sync () |
|
|
686 | #endif |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #ifndef ECB_MEMORY_FENCE |
|
|
690 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
691 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
692 | /* not just C11 atomics and atomic accesses */ |
|
|
693 | #include <stdatomic.h> |
|
|
694 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
695 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
696 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
697 | /* for most usages, or gcc and clang have a bug */ |
|
|
698 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
699 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
700 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
701 | #endif |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | #ifndef ECB_MEMORY_FENCE |
|
|
705 | #if !ECB_AVOID_PTHREADS |
|
|
706 | /* |
|
|
707 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
708 | * or failure to find pthread.h, then you should implement |
|
|
709 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
710 | * OR provide pthread.h and link against the posix thread library |
|
|
711 | * of your system. |
|
|
712 | */ |
|
|
713 | #include <pthread.h> |
|
|
714 | #define ECB_NEEDS_PTHREADS 1 |
|
|
715 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
716 | |
|
|
717 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
718 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
719 | #endif |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
723 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
724 | #endif |
|
|
725 | |
|
|
726 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
727 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
728 | #endif |
|
|
729 | |
|
|
730 | /*****************************************************************************/ |
|
|
731 | |
|
|
732 | #if __cplusplus |
|
|
733 | #define ecb_inline static inline |
|
|
734 | #elif ECB_GCC_VERSION(2,5) |
|
|
735 | #define ecb_inline static __inline__ |
|
|
736 | #elif ECB_C99 |
|
|
737 | #define ecb_inline static inline |
|
|
738 | #else |
|
|
739 | #define ecb_inline static |
|
|
740 | #endif |
|
|
741 | |
|
|
742 | #if ECB_GCC_VERSION(3,3) |
|
|
743 | #define ecb_restrict __restrict__ |
|
|
744 | #elif ECB_C99 |
|
|
745 | #define ecb_restrict restrict |
|
|
746 | #else |
|
|
747 | #define ecb_restrict |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | typedef int ecb_bool; |
|
|
751 | |
|
|
752 | #define ECB_CONCAT_(a, b) a ## b |
|
|
753 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
754 | #define ECB_STRINGIFY_(a) # a |
|
|
755 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
756 | |
|
|
757 | #define ecb_function_ ecb_inline |
|
|
758 | |
|
|
759 | #if ECB_GCC_VERSION(3,1) |
|
|
760 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
761 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
762 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
763 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
764 | #else |
|
|
765 | #define ecb_attribute(attrlist) |
|
|
766 | #define ecb_is_constant(expr) 0 |
|
|
767 | #define ecb_expect(expr,value) (expr) |
|
|
768 | #define ecb_prefetch(addr,rw,locality) |
|
|
769 | #endif |
|
|
770 | |
|
|
771 | /* no emulation for ecb_decltype */ |
|
|
772 | #if ECB_GCC_VERSION(4,5) |
|
|
773 | #define ecb_decltype(x) __decltype(x) |
|
|
774 | #elif ECB_GCC_VERSION(3,0) |
|
|
775 | #define ecb_decltype(x) __typeof(x) |
|
|
776 | #endif |
|
|
777 | |
|
|
778 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
779 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
780 | #define ecb_const ecb_attribute ((__const__)) |
|
|
781 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
782 | |
|
|
783 | #if ECB_C11 |
|
|
784 | #define ecb_noreturn _Noreturn |
|
|
785 | #else |
|
|
786 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
787 | #endif |
|
|
788 | |
|
|
789 | #if ECB_GCC_VERSION(4,3) |
|
|
790 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
791 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
792 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
793 | #else |
|
|
794 | #define ecb_artificial |
|
|
795 | #define ecb_hot |
|
|
796 | #define ecb_cold |
|
|
797 | #endif |
|
|
798 | |
|
|
799 | /* put around conditional expressions if you are very sure that the */ |
|
|
800 | /* expression is mostly true or mostly false. note that these return */ |
|
|
801 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
802 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
803 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
804 | /* for compatibility to the rest of the world */ |
|
|
805 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
806 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
807 | |
|
|
808 | /* count trailing zero bits and count # of one bits */ |
|
|
809 | #if ECB_GCC_VERSION(3,4) |
|
|
810 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
811 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
812 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
813 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
814 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
815 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
816 | /* no popcountll */ |
|
|
817 | #else |
|
|
818 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
819 | ecb_function_ int |
|
|
820 | ecb_ctz32 (uint32_t x) |
|
|
821 | { |
|
|
822 | int r = 0; |
|
|
823 | |
|
|
824 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
825 | |
|
|
826 | #if ECB_branchless_on_i386 |
|
|
827 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
828 | r += !!(x & 0xcccccccc) << 1; |
|
|
829 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
830 | r += !!(x & 0xff00ff00) << 3; |
|
|
831 | r += !!(x & 0xffff0000) << 4; |
|
|
832 | #else |
|
|
833 | if (x & 0xaaaaaaaa) r += 1; |
|
|
834 | if (x & 0xcccccccc) r += 2; |
|
|
835 | if (x & 0xf0f0f0f0) r += 4; |
|
|
836 | if (x & 0xff00ff00) r += 8; |
|
|
837 | if (x & 0xffff0000) r += 16; |
|
|
838 | #endif |
|
|
839 | |
|
|
840 | return r; |
|
|
841 | } |
|
|
842 | |
|
|
843 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
844 | ecb_function_ int |
|
|
845 | ecb_ctz64 (uint64_t x) |
|
|
846 | { |
|
|
847 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
848 | return ecb_ctz32 (x >> shift) + shift; |
|
|
849 | } |
|
|
850 | |
|
|
851 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
852 | ecb_function_ int |
|
|
853 | ecb_popcount32 (uint32_t x) |
|
|
854 | { |
|
|
855 | x -= (x >> 1) & 0x55555555; |
|
|
856 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
857 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
858 | x *= 0x01010101; |
|
|
859 | |
|
|
860 | return x >> 24; |
|
|
861 | } |
|
|
862 | |
|
|
863 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
864 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
865 | { |
|
|
866 | int r = 0; |
|
|
867 | |
|
|
868 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
869 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
870 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
871 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
872 | if (x >> 1) { r += 1; } |
|
|
873 | |
|
|
874 | return r; |
|
|
875 | } |
|
|
876 | |
|
|
877 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
878 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
879 | { |
|
|
880 | int r = 0; |
|
|
881 | |
|
|
882 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
883 | |
|
|
884 | return r + ecb_ld32 (x); |
|
|
885 | } |
|
|
886 | #endif |
|
|
887 | |
|
|
888 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
889 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
890 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
891 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
892 | |
|
|
893 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
894 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
895 | { |
|
|
896 | return ( (x * 0x0802U & 0x22110U) |
|
|
897 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
898 | } |
|
|
899 | |
|
|
900 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
901 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
902 | { |
|
|
903 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
904 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
905 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
906 | x = ( x >> 8 ) | ( x << 8); |
|
|
907 | |
|
|
908 | return x; |
|
|
909 | } |
|
|
910 | |
|
|
911 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
912 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
913 | { |
|
|
914 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
915 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
916 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
917 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
918 | x = ( x >> 16 ) | ( x << 16); |
|
|
919 | |
|
|
920 | return x; |
|
|
921 | } |
|
|
922 | |
|
|
923 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
924 | /* so for this version we are lazy */ |
|
|
925 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
926 | ecb_function_ int |
|
|
927 | ecb_popcount64 (uint64_t x) |
|
|
928 | { |
|
|
929 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
930 | } |
|
|
931 | |
|
|
932 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
933 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
934 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
935 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
936 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
937 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
938 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
939 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
940 | |
|
|
941 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
942 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
943 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
944 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
945 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
946 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
947 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
948 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
949 | |
|
|
950 | #if ECB_GCC_VERSION(4,3) |
|
|
951 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
952 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
953 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
954 | #else |
|
|
955 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
956 | ecb_function_ uint16_t |
|
|
957 | ecb_bswap16 (uint16_t x) |
|
|
958 | { |
|
|
959 | return ecb_rotl16 (x, 8); |
|
|
960 | } |
|
|
961 | |
|
|
962 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
963 | ecb_function_ uint32_t |
|
|
964 | ecb_bswap32 (uint32_t x) |
|
|
965 | { |
|
|
966 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
967 | } |
|
|
968 | |
|
|
969 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
970 | ecb_function_ uint64_t |
|
|
971 | ecb_bswap64 (uint64_t x) |
|
|
972 | { |
|
|
973 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
974 | } |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if ECB_GCC_VERSION(4,5) |
|
|
978 | #define ecb_unreachable() __builtin_unreachable () |
|
|
979 | #else |
|
|
980 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
981 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
982 | ecb_inline void ecb_unreachable (void) { } |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | /* try to tell the compiler that some condition is definitely true */ |
|
|
986 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
987 | |
|
|
988 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
989 | ecb_inline unsigned char |
|
|
990 | ecb_byteorder_helper (void) |
|
|
991 | { |
|
|
992 | /* the union code still generates code under pressure in gcc, */ |
|
|
993 | /* but less than using pointers, and always seems to */ |
|
|
994 | /* successfully return a constant. */ |
|
|
995 | /* the reason why we have this horrible preprocessor mess */ |
|
|
996 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
997 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
998 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
999 | return 0x44; |
|
|
1000 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1001 | return 0x44; |
|
|
1002 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1003 | return 0x11; |
|
|
1004 | #else |
|
|
1005 | union |
|
|
1006 | { |
|
|
1007 | uint32_t i; |
|
|
1008 | uint8_t c; |
|
|
1009 | } u = { 0x11223344 }; |
|
|
1010 | return u.c; |
|
|
1011 | #endif |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1015 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1016 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1017 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1018 | |
|
|
1019 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1020 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1021 | #else |
|
|
1022 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1023 | #endif |
|
|
1024 | |
|
|
1025 | #if __cplusplus |
|
|
1026 | template<typename T> |
|
|
1027 | static inline T ecb_div_rd (T val, T div) |
|
|
1028 | { |
|
|
1029 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1030 | } |
|
|
1031 | template<typename T> |
|
|
1032 | static inline T ecb_div_ru (T val, T div) |
|
|
1033 | { |
|
|
1034 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1035 | } |
|
|
1036 | #else |
|
|
1037 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1038 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1039 | #endif |
|
|
1040 | |
|
|
1041 | #if ecb_cplusplus_does_not_suck |
|
|
1042 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1043 | template<typename T, int N> |
|
|
1044 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1045 | { |
|
|
1046 | return N; |
|
|
1047 | } |
|
|
1048 | #else |
|
|
1049 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1050 | #endif |
|
|
1051 | |
|
|
1052 | /*******************************************************************************/ |
|
|
1053 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1054 | |
|
|
1055 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1056 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1057 | #if 0 \ |
|
|
1058 | || __i386 || __i386__ \ |
|
|
1059 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1060 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1061 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1062 | || defined __s390__ || defined __s390x__ \ |
|
|
1063 | || defined __mips__ \ |
|
|
1064 | || defined __alpha__ \ |
|
|
1065 | || defined __hppa__ \ |
|
|
1066 | || defined __ia64__ \ |
|
|
1067 | || defined __m68k__ \ |
|
|
1068 | || defined __m88k__ \ |
|
|
1069 | || defined __sh__ \ |
|
|
1070 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1071 | #define ECB_STDFP 1 |
|
|
1072 | #include <string.h> /* for memcpy */ |
|
|
1073 | #else |
|
|
1074 | #define ECB_STDFP 0 |
|
|
1075 | #endif |
|
|
1076 | |
|
|
1077 | #ifndef ECB_NO_LIBM |
|
|
1078 | |
|
|
1079 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1080 | |
|
|
1081 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1082 | #ifdef INFINITY |
|
|
1083 | #define ECB_INFINITY INFINITY |
|
|
1084 | #else |
|
|
1085 | #define ECB_INFINITY HUGE_VAL |
|
|
1086 | #endif |
|
|
1087 | |
|
|
1088 | #ifdef NAN |
|
|
1089 | #define ECB_NAN NAN |
|
|
1090 | #else |
|
|
1091 | #define ECB_NAN ECB_INFINITY |
|
|
1092 | #endif |
|
|
1093 | |
|
|
1094 | /* converts an ieee half/binary16 to a float */ |
|
|
1095 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1096 | ecb_function_ float |
|
|
1097 | ecb_binary16_to_float (uint16_t x) |
|
|
1098 | { |
|
|
1099 | int e = (x >> 10) & 0x1f; |
|
|
1100 | int m = x & 0x3ff; |
|
|
1101 | float r; |
|
|
1102 | |
|
|
1103 | if (!e ) r = ldexpf (m , -24); |
|
|
1104 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1105 | else if (m ) r = ECB_NAN; |
|
|
1106 | else r = ECB_INFINITY; |
|
|
1107 | |
|
|
1108 | return x & 0x8000 ? -r : r; |
|
|
1109 | } |
|
|
1110 | |
|
|
1111 | /* convert a float to ieee single/binary32 */ |
|
|
1112 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1113 | ecb_function_ uint32_t |
|
|
1114 | ecb_float_to_binary32 (float x) |
|
|
1115 | { |
|
|
1116 | uint32_t r; |
|
|
1117 | |
|
|
1118 | #if ECB_STDFP |
|
|
1119 | memcpy (&r, &x, 4); |
|
|
1120 | #else |
|
|
1121 | /* slow emulation, works for anything but -0 */ |
|
|
1122 | uint32_t m; |
|
|
1123 | int e; |
|
|
1124 | |
|
|
1125 | if (x == 0e0f ) return 0x00000000U; |
|
|
1126 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1127 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1128 | if (x != x ) return 0x7fbfffffU; |
|
|
1129 | |
|
|
1130 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1131 | |
|
|
1132 | r = m & 0x80000000U; |
|
|
1133 | |
|
|
1134 | if (r) |
|
|
1135 | m = -m; |
|
|
1136 | |
|
|
1137 | if (e <= -126) |
|
|
1138 | { |
|
|
1139 | m &= 0xffffffU; |
|
|
1140 | m >>= (-125 - e); |
|
|
1141 | e = -126; |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | r |= (e + 126) << 23; |
|
|
1145 | r |= m & 0x7fffffU; |
|
|
1146 | #endif |
|
|
1147 | |
|
|
1148 | return r; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | /* converts an ieee single/binary32 to a float */ |
|
|
1152 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1153 | ecb_function_ float |
|
|
1154 | ecb_binary32_to_float (uint32_t x) |
|
|
1155 | { |
|
|
1156 | float r; |
|
|
1157 | |
|
|
1158 | #if ECB_STDFP |
|
|
1159 | memcpy (&r, &x, 4); |
|
|
1160 | #else |
|
|
1161 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1162 | int neg = x >> 31; |
|
|
1163 | int e = (x >> 23) & 0xffU; |
|
|
1164 | |
|
|
1165 | x &= 0x7fffffU; |
|
|
1166 | |
|
|
1167 | if (e) |
|
|
1168 | x |= 0x800000U; |
|
|
1169 | else |
|
|
1170 | e = 1; |
|
|
1171 | |
|
|
1172 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1173 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1174 | |
|
|
1175 | r = neg ? -r : r; |
|
|
1176 | #endif |
|
|
1177 | |
|
|
1178 | return r; |
|
|
1179 | } |
|
|
1180 | |
|
|
1181 | /* convert a double to ieee double/binary64 */ |
|
|
1182 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1183 | ecb_function_ uint64_t |
|
|
1184 | ecb_double_to_binary64 (double x) |
|
|
1185 | { |
|
|
1186 | uint64_t r; |
|
|
1187 | |
|
|
1188 | #if ECB_STDFP |
|
|
1189 | memcpy (&r, &x, 8); |
|
|
1190 | #else |
|
|
1191 | /* slow emulation, works for anything but -0 */ |
|
|
1192 | uint64_t m; |
|
|
1193 | int e; |
|
|
1194 | |
|
|
1195 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1196 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1197 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1198 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1199 | |
|
|
1200 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1201 | |
|
|
1202 | r = m & 0x8000000000000000;; |
|
|
1203 | |
|
|
1204 | if (r) |
|
|
1205 | m = -m; |
|
|
1206 | |
|
|
1207 | if (e <= -1022) |
|
|
1208 | { |
|
|
1209 | m &= 0x1fffffffffffffU; |
|
|
1210 | m >>= (-1021 - e); |
|
|
1211 | e = -1022; |
|
|
1212 | } |
|
|
1213 | |
|
|
1214 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1215 | r |= m & 0xfffffffffffffU; |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | return r; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /* converts an ieee double/binary64 to a double */ |
|
|
1222 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1223 | ecb_function_ double |
|
|
1224 | ecb_binary64_to_double (uint64_t x) |
|
|
1225 | { |
|
|
1226 | double r; |
|
|
1227 | |
|
|
1228 | #if ECB_STDFP |
|
|
1229 | memcpy (&r, &x, 8); |
|
|
1230 | #else |
|
|
1231 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1232 | int neg = x >> 63; |
|
|
1233 | int e = (x >> 52) & 0x7ffU; |
|
|
1234 | |
|
|
1235 | x &= 0xfffffffffffffU; |
|
|
1236 | |
|
|
1237 | if (e) |
|
|
1238 | x |= 0x10000000000000U; |
|
|
1239 | else |
|
|
1240 | e = 1; |
|
|
1241 | |
|
|
1242 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1243 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1244 | |
|
|
1245 | r = neg ? -r : r; |
|
|
1246 | #endif |
|
|
1247 | |
|
|
1248 | return r; |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | #endif |
|
|
1252 | |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | /* ECB.H END */ |
|
|
1256 | |
|
|
1257 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1258 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1259 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1260 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1261 | * libev, in which cases the memory fences become nops. |
|
|
1262 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1263 | * which will then provide the memory fences. |
|
|
1264 | */ |
|
|
1265 | # error "memory fences not defined for your architecture, please report" |
|
|
1266 | #endif |
|
|
1267 | |
|
|
1268 | #ifndef ECB_MEMORY_FENCE |
|
|
1269 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1270 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1271 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1272 | #endif |
|
|
1273 | |
|
|
1274 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1275 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1276 | #define noinline ecb_noinline |
|
|
1277 | |
482 | #define inline_size static inline |
1278 | #define inline_size ecb_inline |
483 | |
1279 | |
484 | #if EV_FEATURE_CODE |
1280 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
1281 | # define inline_speed ecb_inline |
486 | #else |
1282 | #else |
487 | # define inline_speed static noinline |
1283 | # define inline_speed static noinline |
488 | #endif |
1284 | #endif |
489 | |
1285 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1286 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
581 | |
1377 | |
582 | #ifdef __linux |
1378 | #ifdef __linux |
583 | # include <sys/utsname.h> |
1379 | # include <sys/utsname.h> |
584 | #endif |
1380 | #endif |
585 | |
1381 | |
586 | static unsigned int noinline |
1382 | static unsigned int noinline ecb_cold |
587 | ev_linux_version (void) |
1383 | ev_linux_version (void) |
588 | { |
1384 | { |
589 | #ifdef __linux |
1385 | #ifdef __linux |
590 | unsigned int v = 0; |
1386 | unsigned int v = 0; |
591 | struct utsname buf; |
1387 | struct utsname buf; |
… | |
… | |
620 | } |
1416 | } |
621 | |
1417 | |
622 | /*****************************************************************************/ |
1418 | /*****************************************************************************/ |
623 | |
1419 | |
624 | #if EV_AVOID_STDIO |
1420 | #if EV_AVOID_STDIO |
625 | static void noinline |
1421 | static void noinline ecb_cold |
626 | ev_printerr (const char *msg) |
1422 | ev_printerr (const char *msg) |
627 | { |
1423 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1424 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1425 | } |
630 | #endif |
1426 | #endif |
631 | |
1427 | |
632 | static void (*syserr_cb)(const char *msg); |
1428 | static void (*syserr_cb)(const char *msg) EV_THROW; |
633 | |
1429 | |
634 | void |
1430 | void ecb_cold |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1431 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
636 | { |
1432 | { |
637 | syserr_cb = cb; |
1433 | syserr_cb = cb; |
638 | } |
1434 | } |
639 | |
1435 | |
640 | static void noinline |
1436 | static void noinline ecb_cold |
641 | ev_syserr (const char *msg) |
1437 | ev_syserr (const char *msg) |
642 | { |
1438 | { |
643 | if (!msg) |
1439 | if (!msg) |
644 | msg = "(libev) system error"; |
1440 | msg = "(libev) system error"; |
645 | |
1441 | |
… | |
… | |
658 | abort (); |
1454 | abort (); |
659 | } |
1455 | } |
660 | } |
1456 | } |
661 | |
1457 | |
662 | static void * |
1458 | static void * |
663 | ev_realloc_emul (void *ptr, long size) |
1459 | ev_realloc_emul (void *ptr, long size) EV_THROW |
664 | { |
1460 | { |
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
|
|
668 | /* some systems, notably openbsd and darwin, fail to properly |
1461 | /* some systems, notably openbsd and darwin, fail to properly |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1462 | * implement realloc (x, 0) (as required by both ansi c-89 and |
670 | * the single unix specification, so work around them here. |
1463 | * the single unix specification, so work around them here. |
|
|
1464 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1465 | * despite documenting it otherwise. |
671 | */ |
1466 | */ |
672 | |
1467 | |
673 | if (size) |
1468 | if (size) |
674 | return realloc (ptr, size); |
1469 | return realloc (ptr, size); |
675 | |
1470 | |
676 | free (ptr); |
1471 | free (ptr); |
677 | return 0; |
1472 | return 0; |
678 | #endif |
|
|
679 | } |
1473 | } |
680 | |
1474 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1475 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
682 | |
1476 | |
683 | void |
1477 | void ecb_cold |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1478 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
685 | { |
1479 | { |
686 | alloc = cb; |
1480 | alloc = cb; |
687 | } |
1481 | } |
688 | |
1482 | |
689 | inline_speed void * |
1483 | inline_speed void * |
… | |
… | |
777 | #undef VAR |
1571 | #undef VAR |
778 | }; |
1572 | }; |
779 | #include "ev_wrap.h" |
1573 | #include "ev_wrap.h" |
780 | |
1574 | |
781 | static struct ev_loop default_loop_struct; |
1575 | static struct ev_loop default_loop_struct; |
782 | struct ev_loop *ev_default_loop_ptr; |
1576 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
783 | |
1577 | |
784 | #else |
1578 | #else |
785 | |
1579 | |
786 | ev_tstamp ev_rt_now; |
1580 | 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; |
1581 | #define VAR(name,decl) static decl; |
788 | #include "ev_vars.h" |
1582 | #include "ev_vars.h" |
789 | #undef VAR |
1583 | #undef VAR |
790 | |
1584 | |
791 | static int ev_default_loop_ptr; |
1585 | static int ev_default_loop_ptr; |
… | |
… | |
806 | |
1600 | |
807 | /*****************************************************************************/ |
1601 | /*****************************************************************************/ |
808 | |
1602 | |
809 | #ifndef EV_HAVE_EV_TIME |
1603 | #ifndef EV_HAVE_EV_TIME |
810 | ev_tstamp |
1604 | ev_tstamp |
811 | ev_time (void) |
1605 | ev_time (void) EV_THROW |
812 | { |
1606 | { |
813 | #if EV_USE_REALTIME |
1607 | #if EV_USE_REALTIME |
814 | if (expect_true (have_realtime)) |
1608 | if (expect_true (have_realtime)) |
815 | { |
1609 | { |
816 | struct timespec ts; |
1610 | struct timespec ts; |
… | |
… | |
840 | return ev_time (); |
1634 | return ev_time (); |
841 | } |
1635 | } |
842 | |
1636 | |
843 | #if EV_MULTIPLICITY |
1637 | #if EV_MULTIPLICITY |
844 | ev_tstamp |
1638 | ev_tstamp |
845 | ev_now (EV_P) |
1639 | ev_now (EV_P) EV_THROW |
846 | { |
1640 | { |
847 | return ev_rt_now; |
1641 | return ev_rt_now; |
848 | } |
1642 | } |
849 | #endif |
1643 | #endif |
850 | |
1644 | |
851 | void |
1645 | void |
852 | ev_sleep (ev_tstamp delay) |
1646 | ev_sleep (ev_tstamp delay) EV_THROW |
853 | { |
1647 | { |
854 | if (delay > 0.) |
1648 | if (delay > 0.) |
855 | { |
1649 | { |
856 | #if EV_USE_NANOSLEEP |
1650 | #if EV_USE_NANOSLEEP |
857 | struct timespec ts; |
1651 | struct timespec ts; |
858 | |
1652 | |
859 | EV_TS_SET (ts, delay); |
1653 | EV_TS_SET (ts, delay); |
860 | nanosleep (&ts, 0); |
1654 | nanosleep (&ts, 0); |
861 | #elif defined(_WIN32) |
1655 | #elif defined _WIN32 |
862 | Sleep ((unsigned long)(delay * 1e3)); |
1656 | Sleep ((unsigned long)(delay * 1e3)); |
863 | #else |
1657 | #else |
864 | struct timeval tv; |
1658 | struct timeval tv; |
865 | |
1659 | |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1660 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
870 | select (0, 0, 0, 0, &tv); |
1664 | select (0, 0, 0, 0, &tv); |
871 | #endif |
1665 | #endif |
872 | } |
1666 | } |
873 | } |
1667 | } |
874 | |
1668 | |
875 | inline_speed int |
|
|
876 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
877 | { |
|
|
878 | int ms = timeout * 1000. + .999999; |
|
|
879 | |
|
|
880 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
881 | } |
|
|
882 | |
|
|
883 | /*****************************************************************************/ |
1669 | /*****************************************************************************/ |
884 | |
1670 | |
885 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1671 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
886 | |
1672 | |
887 | /* find a suitable new size for the given array, */ |
1673 | /* find a suitable new size for the given array, */ |
… | |
… | |
893 | |
1679 | |
894 | do |
1680 | do |
895 | ncur <<= 1; |
1681 | ncur <<= 1; |
896 | while (cnt > ncur); |
1682 | while (cnt > ncur); |
897 | |
1683 | |
898 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1684 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
899 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1685 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
900 | { |
1686 | { |
901 | ncur *= elem; |
1687 | ncur *= elem; |
902 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1688 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
903 | ncur = ncur - sizeof (void *) * 4; |
1689 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
905 | } |
1691 | } |
906 | |
1692 | |
907 | return ncur; |
1693 | return ncur; |
908 | } |
1694 | } |
909 | |
1695 | |
910 | static noinline void * |
1696 | static void * noinline ecb_cold |
911 | array_realloc (int elem, void *base, int *cur, int cnt) |
1697 | array_realloc (int elem, void *base, int *cur, int cnt) |
912 | { |
1698 | { |
913 | *cur = array_nextsize (elem, *cur, cnt); |
1699 | *cur = array_nextsize (elem, *cur, cnt); |
914 | return ev_realloc (base, elem * *cur); |
1700 | return ev_realloc (base, elem * *cur); |
915 | } |
1701 | } |
… | |
… | |
918 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1704 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
919 | |
1705 | |
920 | #define array_needsize(type,base,cur,cnt,init) \ |
1706 | #define array_needsize(type,base,cur,cnt,init) \ |
921 | if (expect_false ((cnt) > (cur))) \ |
1707 | if (expect_false ((cnt) > (cur))) \ |
922 | { \ |
1708 | { \ |
923 | int ocur_ = (cur); \ |
1709 | int ecb_unused ocur_ = (cur); \ |
924 | (base) = (type *)array_realloc \ |
1710 | (base) = (type *)array_realloc \ |
925 | (sizeof (type), (base), &(cur), (cnt)); \ |
1711 | (sizeof (type), (base), &(cur), (cnt)); \ |
926 | init ((base) + (ocur_), (cur) - ocur_); \ |
1712 | init ((base) + (ocur_), (cur) - ocur_); \ |
927 | } |
1713 | } |
928 | |
1714 | |
… | |
… | |
946 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1732 | pendingcb (EV_P_ ev_prepare *w, int revents) |
947 | { |
1733 | { |
948 | } |
1734 | } |
949 | |
1735 | |
950 | void noinline |
1736 | void noinline |
951 | ev_feed_event (EV_P_ void *w, int revents) |
1737 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
952 | { |
1738 | { |
953 | W w_ = (W)w; |
1739 | W w_ = (W)w; |
954 | int pri = ABSPRI (w_); |
1740 | int pri = ABSPRI (w_); |
955 | |
1741 | |
956 | if (expect_false (w_->pending)) |
1742 | if (expect_false (w_->pending)) |
… | |
… | |
960 | w_->pending = ++pendingcnt [pri]; |
1746 | w_->pending = ++pendingcnt [pri]; |
961 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1747 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
962 | pendings [pri][w_->pending - 1].w = w_; |
1748 | pendings [pri][w_->pending - 1].w = w_; |
963 | pendings [pri][w_->pending - 1].events = revents; |
1749 | pendings [pri][w_->pending - 1].events = revents; |
964 | } |
1750 | } |
|
|
1751 | |
|
|
1752 | pendingpri = NUMPRI - 1; |
965 | } |
1753 | } |
966 | |
1754 | |
967 | inline_speed void |
1755 | inline_speed void |
968 | feed_reverse (EV_P_ W w) |
1756 | feed_reverse (EV_P_ W w) |
969 | { |
1757 | { |
… | |
… | |
1015 | if (expect_true (!anfd->reify)) |
1803 | if (expect_true (!anfd->reify)) |
1016 | fd_event_nocheck (EV_A_ fd, revents); |
1804 | fd_event_nocheck (EV_A_ fd, revents); |
1017 | } |
1805 | } |
1018 | |
1806 | |
1019 | void |
1807 | void |
1020 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1808 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1021 | { |
1809 | { |
1022 | if (fd >= 0 && fd < anfdmax) |
1810 | if (fd >= 0 && fd < anfdmax) |
1023 | fd_event_nocheck (EV_A_ fd, revents); |
1811 | fd_event_nocheck (EV_A_ fd, revents); |
1024 | } |
1812 | } |
1025 | |
1813 | |
… | |
… | |
1034 | for (i = 0; i < fdchangecnt; ++i) |
1822 | for (i = 0; i < fdchangecnt; ++i) |
1035 | { |
1823 | { |
1036 | int fd = fdchanges [i]; |
1824 | int fd = fdchanges [i]; |
1037 | ANFD *anfd = anfds + fd; |
1825 | ANFD *anfd = anfds + fd; |
1038 | |
1826 | |
1039 | if (anfd->reify & EV__IOFDSET) |
1827 | if (anfd->reify & EV__IOFDSET && anfd->head) |
1040 | { |
1828 | { |
1041 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
1829 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
1042 | |
1830 | |
1043 | if (handle != anfd->handle) |
1831 | if (handle != anfd->handle) |
1044 | { |
1832 | { |
… | |
… | |
1098 | fdchanges [fdchangecnt - 1] = fd; |
1886 | fdchanges [fdchangecnt - 1] = fd; |
1099 | } |
1887 | } |
1100 | } |
1888 | } |
1101 | |
1889 | |
1102 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1890 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1103 | inline_speed void |
1891 | inline_speed void ecb_cold |
1104 | fd_kill (EV_P_ int fd) |
1892 | fd_kill (EV_P_ int fd) |
1105 | { |
1893 | { |
1106 | ev_io *w; |
1894 | ev_io *w; |
1107 | |
1895 | |
1108 | while ((w = (ev_io *)anfds [fd].head)) |
1896 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1111 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1899 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1112 | } |
1900 | } |
1113 | } |
1901 | } |
1114 | |
1902 | |
1115 | /* check whether the given fd is actually valid, for error recovery */ |
1903 | /* check whether the given fd is actually valid, for error recovery */ |
1116 | inline_size int |
1904 | inline_size int ecb_cold |
1117 | fd_valid (int fd) |
1905 | fd_valid (int fd) |
1118 | { |
1906 | { |
1119 | #ifdef _WIN32 |
1907 | #ifdef _WIN32 |
1120 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1908 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1121 | #else |
1909 | #else |
1122 | return fcntl (fd, F_GETFD) != -1; |
1910 | return fcntl (fd, F_GETFD) != -1; |
1123 | #endif |
1911 | #endif |
1124 | } |
1912 | } |
1125 | |
1913 | |
1126 | /* called on EBADF to verify fds */ |
1914 | /* called on EBADF to verify fds */ |
1127 | static void noinline |
1915 | static void noinline ecb_cold |
1128 | fd_ebadf (EV_P) |
1916 | fd_ebadf (EV_P) |
1129 | { |
1917 | { |
1130 | int fd; |
1918 | int fd; |
1131 | |
1919 | |
1132 | for (fd = 0; fd < anfdmax; ++fd) |
1920 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1134 | if (!fd_valid (fd) && errno == EBADF) |
1922 | if (!fd_valid (fd) && errno == EBADF) |
1135 | fd_kill (EV_A_ fd); |
1923 | fd_kill (EV_A_ fd); |
1136 | } |
1924 | } |
1137 | |
1925 | |
1138 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1926 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1139 | static void noinline |
1927 | static void noinline ecb_cold |
1140 | fd_enomem (EV_P) |
1928 | fd_enomem (EV_P) |
1141 | { |
1929 | { |
1142 | int fd; |
1930 | int fd; |
1143 | |
1931 | |
1144 | for (fd = anfdmax; fd--; ) |
1932 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1339 | |
2127 | |
1340 | /*****************************************************************************/ |
2128 | /*****************************************************************************/ |
1341 | |
2129 | |
1342 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2130 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1343 | |
2131 | |
1344 | static void noinline |
2132 | static void noinline ecb_cold |
1345 | evpipe_init (EV_P) |
2133 | evpipe_init (EV_P) |
1346 | { |
2134 | { |
1347 | if (!ev_is_active (&pipe_w)) |
2135 | if (!ev_is_active (&pipe_w)) |
1348 | { |
2136 | { |
|
|
2137 | int fds [2]; |
|
|
2138 | |
1349 | # if EV_USE_EVENTFD |
2139 | # if EV_USE_EVENTFD |
|
|
2140 | fds [0] = -1; |
1350 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2141 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1351 | if (evfd < 0 && errno == EINVAL) |
2142 | if (fds [1] < 0 && errno == EINVAL) |
1352 | evfd = eventfd (0, 0); |
2143 | fds [1] = eventfd (0, 0); |
1353 | |
2144 | |
1354 | if (evfd >= 0) |
2145 | if (fds [1] < 0) |
|
|
2146 | # endif |
1355 | { |
2147 | { |
|
|
2148 | while (pipe (fds)) |
|
|
2149 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2150 | |
|
|
2151 | fd_intern (fds [0]); |
|
|
2152 | } |
|
|
2153 | |
1356 | evpipe [0] = -1; |
2154 | evpipe [0] = fds [0]; |
1357 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2155 | |
1358 | ev_io_set (&pipe_w, evfd, EV_READ); |
2156 | if (evpipe [1] < 0) |
|
|
2157 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2158 | else |
|
|
2159 | { |
|
|
2160 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2161 | /* so that evpipe_write can always rely on its value. */ |
|
|
2162 | /* this branch does not do anything sensible on windows, */ |
|
|
2163 | /* so must not be executed on windows */ |
|
|
2164 | |
|
|
2165 | dup2 (fds [1], evpipe [1]); |
|
|
2166 | close (fds [1]); |
|
|
2167 | } |
|
|
2168 | |
|
|
2169 | fd_intern (evpipe [1]); |
|
|
2170 | |
|
|
2171 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2172 | ev_io_start (EV_A_ &pipe_w); |
|
|
2173 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2174 | } |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | inline_speed void |
|
|
2178 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2179 | { |
|
|
2180 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2181 | |
|
|
2182 | if (expect_true (*flag)) |
|
|
2183 | return; |
|
|
2184 | |
|
|
2185 | *flag = 1; |
|
|
2186 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2187 | |
|
|
2188 | pipe_write_skipped = 1; |
|
|
2189 | |
|
|
2190 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2191 | |
|
|
2192 | if (pipe_write_wanted) |
|
|
2193 | { |
|
|
2194 | int old_errno; |
|
|
2195 | |
|
|
2196 | pipe_write_skipped = 0; |
|
|
2197 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2198 | |
|
|
2199 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2200 | |
|
|
2201 | #if EV_USE_EVENTFD |
|
|
2202 | if (evpipe [0] < 0) |
|
|
2203 | { |
|
|
2204 | uint64_t counter = 1; |
|
|
2205 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1359 | } |
2206 | } |
1360 | else |
2207 | else |
1361 | # endif |
2208 | #endif |
1362 | { |
2209 | { |
1363 | while (pipe (evpipe)) |
2210 | #ifdef _WIN32 |
1364 | ev_syserr ("(libev) error creating signal/async pipe"); |
2211 | WSABUF buf; |
1365 | |
2212 | DWORD sent; |
1366 | fd_intern (evpipe [0]); |
2213 | buf.buf = &buf; |
1367 | fd_intern (evpipe [1]); |
2214 | buf.len = 1; |
1368 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2215 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2216 | #else |
|
|
2217 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2218 | #endif |
1369 | } |
2219 | } |
1370 | |
|
|
1371 | ev_io_start (EV_A_ &pipe_w); |
|
|
1372 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1373 | } |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | inline_size void |
|
|
1377 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1378 | { |
|
|
1379 | if (!*flag) |
|
|
1380 | { |
|
|
1381 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1382 | char dummy; |
|
|
1383 | |
|
|
1384 | *flag = 1; |
|
|
1385 | |
|
|
1386 | #if EV_USE_EVENTFD |
|
|
1387 | if (evfd >= 0) |
|
|
1388 | { |
|
|
1389 | uint64_t counter = 1; |
|
|
1390 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1391 | } |
|
|
1392 | else |
|
|
1393 | #endif |
|
|
1394 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1395 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1396 | /* so when you think this write should be a send instead, please find out */ |
|
|
1397 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1398 | /* tell me. thank you. */ |
|
|
1399 | write (evpipe [1], &dummy, 1); |
|
|
1400 | |
2220 | |
1401 | errno = old_errno; |
2221 | errno = old_errno; |
1402 | } |
2222 | } |
1403 | } |
2223 | } |
1404 | |
2224 | |
… | |
… | |
1407 | static void |
2227 | static void |
1408 | pipecb (EV_P_ ev_io *iow, int revents) |
2228 | pipecb (EV_P_ ev_io *iow, int revents) |
1409 | { |
2229 | { |
1410 | int i; |
2230 | int i; |
1411 | |
2231 | |
|
|
2232 | if (revents & EV_READ) |
|
|
2233 | { |
1412 | #if EV_USE_EVENTFD |
2234 | #if EV_USE_EVENTFD |
1413 | if (evfd >= 0) |
2235 | if (evpipe [0] < 0) |
1414 | { |
2236 | { |
1415 | uint64_t counter; |
2237 | uint64_t counter; |
1416 | read (evfd, &counter, sizeof (uint64_t)); |
2238 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1417 | } |
2239 | } |
1418 | else |
2240 | else |
1419 | #endif |
2241 | #endif |
1420 | { |
2242 | { |
1421 | char dummy; |
2243 | char dummy[4]; |
1422 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2244 | #ifdef _WIN32 |
|
|
2245 | WSABUF buf; |
|
|
2246 | DWORD recvd; |
|
|
2247 | DWORD flags = 0; |
|
|
2248 | buf.buf = dummy; |
|
|
2249 | buf.len = sizeof (dummy); |
|
|
2250 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2251 | #else |
1423 | read (evpipe [0], &dummy, 1); |
2252 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2253 | #endif |
|
|
2254 | } |
1424 | } |
2255 | } |
|
|
2256 | |
|
|
2257 | pipe_write_skipped = 0; |
|
|
2258 | |
|
|
2259 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1425 | |
2260 | |
1426 | #if EV_SIGNAL_ENABLE |
2261 | #if EV_SIGNAL_ENABLE |
1427 | if (sig_pending) |
2262 | if (sig_pending) |
1428 | { |
2263 | { |
1429 | sig_pending = 0; |
2264 | sig_pending = 0; |
|
|
2265 | |
|
|
2266 | ECB_MEMORY_FENCE; |
1430 | |
2267 | |
1431 | for (i = EV_NSIG - 1; i--; ) |
2268 | for (i = EV_NSIG - 1; i--; ) |
1432 | if (expect_false (signals [i].pending)) |
2269 | if (expect_false (signals [i].pending)) |
1433 | ev_feed_signal_event (EV_A_ i + 1); |
2270 | ev_feed_signal_event (EV_A_ i + 1); |
1434 | } |
2271 | } |
… | |
… | |
1436 | |
2273 | |
1437 | #if EV_ASYNC_ENABLE |
2274 | #if EV_ASYNC_ENABLE |
1438 | if (async_pending) |
2275 | if (async_pending) |
1439 | { |
2276 | { |
1440 | async_pending = 0; |
2277 | async_pending = 0; |
|
|
2278 | |
|
|
2279 | ECB_MEMORY_FENCE; |
1441 | |
2280 | |
1442 | for (i = asynccnt; i--; ) |
2281 | for (i = asynccnt; i--; ) |
1443 | if (asyncs [i]->sent) |
2282 | if (asyncs [i]->sent) |
1444 | { |
2283 | { |
1445 | asyncs [i]->sent = 0; |
2284 | asyncs [i]->sent = 0; |
|
|
2285 | ECB_MEMORY_FENCE_RELEASE; |
1446 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2286 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1447 | } |
2287 | } |
1448 | } |
2288 | } |
1449 | #endif |
2289 | #endif |
1450 | } |
2290 | } |
1451 | |
2291 | |
1452 | /*****************************************************************************/ |
2292 | /*****************************************************************************/ |
1453 | |
2293 | |
1454 | void |
2294 | void |
1455 | ev_feed_signal (int signum) |
2295 | ev_feed_signal (int signum) EV_THROW |
1456 | { |
2296 | { |
1457 | #if EV_MULTIPLICITY |
2297 | #if EV_MULTIPLICITY |
|
|
2298 | EV_P; |
|
|
2299 | ECB_MEMORY_FENCE_ACQUIRE; |
1458 | EV_P = signals [signum - 1].loop; |
2300 | EV_A = signals [signum - 1].loop; |
1459 | |
2301 | |
1460 | if (!EV_A) |
2302 | if (!EV_A) |
1461 | return; |
2303 | return; |
1462 | #endif |
2304 | #endif |
1463 | |
2305 | |
… | |
… | |
1474 | |
2316 | |
1475 | ev_feed_signal (signum); |
2317 | ev_feed_signal (signum); |
1476 | } |
2318 | } |
1477 | |
2319 | |
1478 | void noinline |
2320 | void noinline |
1479 | ev_feed_signal_event (EV_P_ int signum) |
2321 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1480 | { |
2322 | { |
1481 | WL w; |
2323 | WL w; |
1482 | |
2324 | |
1483 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2325 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1484 | return; |
2326 | return; |
1485 | |
2327 | |
1486 | --signum; |
2328 | --signum; |
1487 | |
2329 | |
1488 | #if EV_MULTIPLICITY |
2330 | #if EV_MULTIPLICITY |
… | |
… | |
1492 | if (expect_false (signals [signum].loop != EV_A)) |
2334 | if (expect_false (signals [signum].loop != EV_A)) |
1493 | return; |
2335 | return; |
1494 | #endif |
2336 | #endif |
1495 | |
2337 | |
1496 | signals [signum].pending = 0; |
2338 | signals [signum].pending = 0; |
|
|
2339 | ECB_MEMORY_FENCE_RELEASE; |
1497 | |
2340 | |
1498 | for (w = signals [signum].head; w; w = w->next) |
2341 | for (w = signals [signum].head; w; w = w->next) |
1499 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2342 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1500 | } |
2343 | } |
1501 | |
2344 | |
… | |
… | |
1599 | #endif |
2442 | #endif |
1600 | #if EV_USE_SELECT |
2443 | #if EV_USE_SELECT |
1601 | # include "ev_select.c" |
2444 | # include "ev_select.c" |
1602 | #endif |
2445 | #endif |
1603 | |
2446 | |
1604 | int |
2447 | int ecb_cold |
1605 | ev_version_major (void) |
2448 | ev_version_major (void) EV_THROW |
1606 | { |
2449 | { |
1607 | return EV_VERSION_MAJOR; |
2450 | return EV_VERSION_MAJOR; |
1608 | } |
2451 | } |
1609 | |
2452 | |
1610 | int |
2453 | int ecb_cold |
1611 | ev_version_minor (void) |
2454 | ev_version_minor (void) EV_THROW |
1612 | { |
2455 | { |
1613 | return EV_VERSION_MINOR; |
2456 | return EV_VERSION_MINOR; |
1614 | } |
2457 | } |
1615 | |
2458 | |
1616 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2459 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1617 | int inline_size |
2460 | int inline_size ecb_cold |
1618 | enable_secure (void) |
2461 | enable_secure (void) |
1619 | { |
2462 | { |
1620 | #ifdef _WIN32 |
2463 | #ifdef _WIN32 |
1621 | return 0; |
2464 | return 0; |
1622 | #else |
2465 | #else |
1623 | return getuid () != geteuid () |
2466 | return getuid () != geteuid () |
1624 | || getgid () != getegid (); |
2467 | || getgid () != getegid (); |
1625 | #endif |
2468 | #endif |
1626 | } |
2469 | } |
1627 | |
2470 | |
1628 | unsigned int |
2471 | unsigned int ecb_cold |
1629 | ev_supported_backends (void) |
2472 | ev_supported_backends (void) EV_THROW |
1630 | { |
2473 | { |
1631 | unsigned int flags = 0; |
2474 | unsigned int flags = 0; |
1632 | |
2475 | |
1633 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2476 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1634 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2477 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1637 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2480 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1638 | |
2481 | |
1639 | return flags; |
2482 | return flags; |
1640 | } |
2483 | } |
1641 | |
2484 | |
1642 | unsigned int |
2485 | unsigned int ecb_cold |
1643 | ev_recommended_backends (void) |
2486 | ev_recommended_backends (void) EV_THROW |
1644 | { |
2487 | { |
1645 | unsigned int flags = ev_supported_backends (); |
2488 | unsigned int flags = ev_supported_backends (); |
1646 | |
2489 | |
1647 | #ifndef __NetBSD__ |
2490 | #ifndef __NetBSD__ |
1648 | /* kqueue is borked on everything but netbsd apparently */ |
2491 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1659 | #endif |
2502 | #endif |
1660 | |
2503 | |
1661 | return flags; |
2504 | return flags; |
1662 | } |
2505 | } |
1663 | |
2506 | |
1664 | unsigned int |
2507 | unsigned int ecb_cold |
1665 | ev_embeddable_backends (void) |
2508 | ev_embeddable_backends (void) EV_THROW |
1666 | { |
2509 | { |
1667 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2510 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1668 | |
2511 | |
1669 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2512 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1670 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2513 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1672 | |
2515 | |
1673 | return flags; |
2516 | return flags; |
1674 | } |
2517 | } |
1675 | |
2518 | |
1676 | unsigned int |
2519 | unsigned int |
1677 | ev_backend (EV_P) |
2520 | ev_backend (EV_P) EV_THROW |
1678 | { |
2521 | { |
1679 | return backend; |
2522 | return backend; |
1680 | } |
2523 | } |
1681 | |
2524 | |
1682 | #if EV_FEATURE_API |
2525 | #if EV_FEATURE_API |
1683 | unsigned int |
2526 | unsigned int |
1684 | ev_iteration (EV_P) |
2527 | ev_iteration (EV_P) EV_THROW |
1685 | { |
2528 | { |
1686 | return loop_count; |
2529 | return loop_count; |
1687 | } |
2530 | } |
1688 | |
2531 | |
1689 | unsigned int |
2532 | unsigned int |
1690 | ev_depth (EV_P) |
2533 | ev_depth (EV_P) EV_THROW |
1691 | { |
2534 | { |
1692 | return loop_depth; |
2535 | return loop_depth; |
1693 | } |
2536 | } |
1694 | |
2537 | |
1695 | void |
2538 | void |
1696 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2539 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1697 | { |
2540 | { |
1698 | io_blocktime = interval; |
2541 | io_blocktime = interval; |
1699 | } |
2542 | } |
1700 | |
2543 | |
1701 | void |
2544 | void |
1702 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2545 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1703 | { |
2546 | { |
1704 | timeout_blocktime = interval; |
2547 | timeout_blocktime = interval; |
1705 | } |
2548 | } |
1706 | |
2549 | |
1707 | void |
2550 | void |
1708 | ev_set_userdata (EV_P_ void *data) |
2551 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1709 | { |
2552 | { |
1710 | userdata = data; |
2553 | userdata = data; |
1711 | } |
2554 | } |
1712 | |
2555 | |
1713 | void * |
2556 | void * |
1714 | ev_userdata (EV_P) |
2557 | ev_userdata (EV_P) EV_THROW |
1715 | { |
2558 | { |
1716 | return userdata; |
2559 | return userdata; |
1717 | } |
2560 | } |
1718 | |
2561 | |
|
|
2562 | void |
1719 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2563 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1720 | { |
2564 | { |
1721 | invoke_cb = invoke_pending_cb; |
2565 | invoke_cb = invoke_pending_cb; |
1722 | } |
2566 | } |
1723 | |
2567 | |
1724 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2568 | void |
|
|
2569 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
1725 | { |
2570 | { |
1726 | release_cb = release; |
2571 | release_cb = release; |
1727 | acquire_cb = acquire; |
2572 | acquire_cb = acquire; |
1728 | } |
2573 | } |
1729 | #endif |
2574 | #endif |
1730 | |
2575 | |
1731 | /* initialise a loop structure, must be zero-initialised */ |
2576 | /* initialise a loop structure, must be zero-initialised */ |
1732 | static void noinline |
2577 | static void noinline ecb_cold |
1733 | loop_init (EV_P_ unsigned int flags) |
2578 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1734 | { |
2579 | { |
1735 | if (!backend) |
2580 | if (!backend) |
1736 | { |
2581 | { |
1737 | origflags = flags; |
2582 | origflags = flags; |
1738 | |
2583 | |
… | |
… | |
1765 | if (!(flags & EVFLAG_NOENV) |
2610 | if (!(flags & EVFLAG_NOENV) |
1766 | && !enable_secure () |
2611 | && !enable_secure () |
1767 | && getenv ("LIBEV_FLAGS")) |
2612 | && getenv ("LIBEV_FLAGS")) |
1768 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2613 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1769 | |
2614 | |
1770 | ev_rt_now = ev_time (); |
2615 | ev_rt_now = ev_time (); |
1771 | mn_now = get_clock (); |
2616 | mn_now = get_clock (); |
1772 | now_floor = mn_now; |
2617 | now_floor = mn_now; |
1773 | rtmn_diff = ev_rt_now - mn_now; |
2618 | rtmn_diff = ev_rt_now - mn_now; |
1774 | #if EV_FEATURE_API |
2619 | #if EV_FEATURE_API |
1775 | invoke_cb = ev_invoke_pending; |
2620 | invoke_cb = ev_invoke_pending; |
1776 | #endif |
2621 | #endif |
1777 | |
2622 | |
1778 | io_blocktime = 0.; |
2623 | io_blocktime = 0.; |
1779 | timeout_blocktime = 0.; |
2624 | timeout_blocktime = 0.; |
1780 | backend = 0; |
2625 | backend = 0; |
1781 | backend_fd = -1; |
2626 | backend_fd = -1; |
1782 | sig_pending = 0; |
2627 | sig_pending = 0; |
1783 | #if EV_ASYNC_ENABLE |
2628 | #if EV_ASYNC_ENABLE |
1784 | async_pending = 0; |
2629 | async_pending = 0; |
1785 | #endif |
2630 | #endif |
|
|
2631 | pipe_write_skipped = 0; |
|
|
2632 | pipe_write_wanted = 0; |
|
|
2633 | evpipe [0] = -1; |
|
|
2634 | evpipe [1] = -1; |
1786 | #if EV_USE_INOTIFY |
2635 | #if EV_USE_INOTIFY |
1787 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2636 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1788 | #endif |
2637 | #endif |
1789 | #if EV_USE_SIGNALFD |
2638 | #if EV_USE_SIGNALFD |
1790 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2639 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1791 | #endif |
2640 | #endif |
1792 | |
2641 | |
1793 | if (!(flags & EVBACKEND_MASK)) |
2642 | if (!(flags & EVBACKEND_MASK)) |
1794 | flags |= ev_recommended_backends (); |
2643 | flags |= ev_recommended_backends (); |
1795 | |
2644 | |
… | |
… | |
1820 | #endif |
2669 | #endif |
1821 | } |
2670 | } |
1822 | } |
2671 | } |
1823 | |
2672 | |
1824 | /* free up a loop structure */ |
2673 | /* free up a loop structure */ |
1825 | void |
2674 | void ecb_cold |
1826 | ev_loop_destroy (EV_P) |
2675 | ev_loop_destroy (EV_P) |
1827 | { |
2676 | { |
1828 | int i; |
2677 | int i; |
1829 | |
2678 | |
1830 | #if EV_MULTIPLICITY |
2679 | #if EV_MULTIPLICITY |
… | |
… | |
1841 | EV_INVOKE_PENDING; |
2690 | EV_INVOKE_PENDING; |
1842 | } |
2691 | } |
1843 | #endif |
2692 | #endif |
1844 | |
2693 | |
1845 | #if EV_CHILD_ENABLE |
2694 | #if EV_CHILD_ENABLE |
1846 | if (ev_is_active (&childev)) |
2695 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1847 | { |
2696 | { |
1848 | ev_ref (EV_A); /* child watcher */ |
2697 | ev_ref (EV_A); /* child watcher */ |
1849 | ev_signal_stop (EV_A_ &childev); |
2698 | ev_signal_stop (EV_A_ &childev); |
1850 | } |
2699 | } |
1851 | #endif |
2700 | #endif |
… | |
… | |
1853 | if (ev_is_active (&pipe_w)) |
2702 | if (ev_is_active (&pipe_w)) |
1854 | { |
2703 | { |
1855 | /*ev_ref (EV_A);*/ |
2704 | /*ev_ref (EV_A);*/ |
1856 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2705 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1857 | |
2706 | |
1858 | #if EV_USE_EVENTFD |
|
|
1859 | if (evfd >= 0) |
|
|
1860 | close (evfd); |
|
|
1861 | #endif |
|
|
1862 | |
|
|
1863 | if (evpipe [0] >= 0) |
|
|
1864 | { |
|
|
1865 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2707 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1866 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2708 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1867 | } |
|
|
1868 | } |
2709 | } |
1869 | |
2710 | |
1870 | #if EV_USE_SIGNALFD |
2711 | #if EV_USE_SIGNALFD |
1871 | if (ev_is_active (&sigfd_w)) |
2712 | if (ev_is_active (&sigfd_w)) |
1872 | close (sigfd); |
2713 | close (sigfd); |
… | |
… | |
1958 | #endif |
2799 | #endif |
1959 | #if EV_USE_INOTIFY |
2800 | #if EV_USE_INOTIFY |
1960 | infy_fork (EV_A); |
2801 | infy_fork (EV_A); |
1961 | #endif |
2802 | #endif |
1962 | |
2803 | |
|
|
2804 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1963 | if (ev_is_active (&pipe_w)) |
2805 | if (ev_is_active (&pipe_w)) |
1964 | { |
2806 | { |
1965 | /* this "locks" the handlers against writing to the pipe */ |
2807 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1966 | /* while we modify the fd vars */ |
|
|
1967 | sig_pending = 1; |
|
|
1968 | #if EV_ASYNC_ENABLE |
|
|
1969 | async_pending = 1; |
|
|
1970 | #endif |
|
|
1971 | |
2808 | |
1972 | ev_ref (EV_A); |
2809 | ev_ref (EV_A); |
1973 | ev_io_stop (EV_A_ &pipe_w); |
2810 | ev_io_stop (EV_A_ &pipe_w); |
1974 | |
2811 | |
1975 | #if EV_USE_EVENTFD |
|
|
1976 | if (evfd >= 0) |
|
|
1977 | close (evfd); |
|
|
1978 | #endif |
|
|
1979 | |
|
|
1980 | if (evpipe [0] >= 0) |
2812 | if (evpipe [0] >= 0) |
1981 | { |
|
|
1982 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2813 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1983 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1984 | } |
|
|
1985 | |
2814 | |
1986 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1987 | evpipe_init (EV_A); |
2815 | evpipe_init (EV_A); |
1988 | /* now iterate over everything, in case we missed something */ |
2816 | /* iterate over everything, in case we missed something before */ |
1989 | pipecb (EV_A_ &pipe_w, EV_READ); |
2817 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1990 | #endif |
|
|
1991 | } |
2818 | } |
|
|
2819 | #endif |
1992 | |
2820 | |
1993 | postfork = 0; |
2821 | postfork = 0; |
1994 | } |
2822 | } |
1995 | |
2823 | |
1996 | #if EV_MULTIPLICITY |
2824 | #if EV_MULTIPLICITY |
1997 | |
2825 | |
1998 | struct ev_loop * |
2826 | struct ev_loop * ecb_cold |
1999 | ev_loop_new (unsigned int flags) |
2827 | ev_loop_new (unsigned int flags) EV_THROW |
2000 | { |
2828 | { |
2001 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2829 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2002 | |
2830 | |
2003 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2831 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2004 | loop_init (EV_A_ flags); |
2832 | loop_init (EV_A_ flags); |
… | |
… | |
2011 | } |
2839 | } |
2012 | |
2840 | |
2013 | #endif /* multiplicity */ |
2841 | #endif /* multiplicity */ |
2014 | |
2842 | |
2015 | #if EV_VERIFY |
2843 | #if EV_VERIFY |
2016 | static void noinline |
2844 | static void noinline ecb_cold |
2017 | verify_watcher (EV_P_ W w) |
2845 | verify_watcher (EV_P_ W w) |
2018 | { |
2846 | { |
2019 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2847 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2020 | |
2848 | |
2021 | if (w->pending) |
2849 | if (w->pending) |
2022 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2850 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2023 | } |
2851 | } |
2024 | |
2852 | |
2025 | static void noinline |
2853 | static void noinline ecb_cold |
2026 | verify_heap (EV_P_ ANHE *heap, int N) |
2854 | verify_heap (EV_P_ ANHE *heap, int N) |
2027 | { |
2855 | { |
2028 | int i; |
2856 | int i; |
2029 | |
2857 | |
2030 | for (i = HEAP0; i < N + HEAP0; ++i) |
2858 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2035 | |
2863 | |
2036 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2864 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2037 | } |
2865 | } |
2038 | } |
2866 | } |
2039 | |
2867 | |
2040 | static void noinline |
2868 | static void noinline ecb_cold |
2041 | array_verify (EV_P_ W *ws, int cnt) |
2869 | array_verify (EV_P_ W *ws, int cnt) |
2042 | { |
2870 | { |
2043 | while (cnt--) |
2871 | while (cnt--) |
2044 | { |
2872 | { |
2045 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2873 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2047 | } |
2875 | } |
2048 | } |
2876 | } |
2049 | #endif |
2877 | #endif |
2050 | |
2878 | |
2051 | #if EV_FEATURE_API |
2879 | #if EV_FEATURE_API |
2052 | void |
2880 | void ecb_cold |
2053 | ev_verify (EV_P) |
2881 | ev_verify (EV_P) EV_THROW |
2054 | { |
2882 | { |
2055 | #if EV_VERIFY |
2883 | #if EV_VERIFY |
2056 | int i; |
2884 | int i; |
2057 | WL w; |
2885 | WL w, w2; |
2058 | |
2886 | |
2059 | assert (activecnt >= -1); |
2887 | assert (activecnt >= -1); |
2060 | |
2888 | |
2061 | assert (fdchangemax >= fdchangecnt); |
2889 | assert (fdchangemax >= fdchangecnt); |
2062 | for (i = 0; i < fdchangecnt; ++i) |
2890 | for (i = 0; i < fdchangecnt; ++i) |
2063 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2891 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2064 | |
2892 | |
2065 | assert (anfdmax >= 0); |
2893 | assert (anfdmax >= 0); |
2066 | for (i = 0; i < anfdmax; ++i) |
2894 | for (i = 0; i < anfdmax; ++i) |
|
|
2895 | { |
|
|
2896 | int j = 0; |
|
|
2897 | |
2067 | for (w = anfds [i].head; w; w = w->next) |
2898 | for (w = w2 = anfds [i].head; w; w = w->next) |
2068 | { |
2899 | { |
2069 | verify_watcher (EV_A_ (W)w); |
2900 | verify_watcher (EV_A_ (W)w); |
|
|
2901 | |
|
|
2902 | if (j++ & 1) |
|
|
2903 | { |
|
|
2904 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2905 | w2 = w2->next; |
|
|
2906 | } |
|
|
2907 | |
2070 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2908 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2071 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2909 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2072 | } |
2910 | } |
|
|
2911 | } |
2073 | |
2912 | |
2074 | assert (timermax >= timercnt); |
2913 | assert (timermax >= timercnt); |
2075 | verify_heap (EV_A_ timers, timercnt); |
2914 | verify_heap (EV_A_ timers, timercnt); |
2076 | |
2915 | |
2077 | #if EV_PERIODIC_ENABLE |
2916 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2123 | #endif |
2962 | #endif |
2124 | } |
2963 | } |
2125 | #endif |
2964 | #endif |
2126 | |
2965 | |
2127 | #if EV_MULTIPLICITY |
2966 | #if EV_MULTIPLICITY |
2128 | struct ev_loop * |
2967 | struct ev_loop * ecb_cold |
2129 | #else |
2968 | #else |
2130 | int |
2969 | int |
2131 | #endif |
2970 | #endif |
2132 | ev_default_loop (unsigned int flags) |
2971 | ev_default_loop (unsigned int flags) EV_THROW |
2133 | { |
2972 | { |
2134 | if (!ev_default_loop_ptr) |
2973 | if (!ev_default_loop_ptr) |
2135 | { |
2974 | { |
2136 | #if EV_MULTIPLICITY |
2975 | #if EV_MULTIPLICITY |
2137 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2976 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2156 | |
2995 | |
2157 | return ev_default_loop_ptr; |
2996 | return ev_default_loop_ptr; |
2158 | } |
2997 | } |
2159 | |
2998 | |
2160 | void |
2999 | void |
2161 | ev_loop_fork (EV_P) |
3000 | ev_loop_fork (EV_P) EV_THROW |
2162 | { |
3001 | { |
2163 | postfork = 1; /* must be in line with ev_default_fork */ |
3002 | postfork = 1; |
2164 | } |
3003 | } |
2165 | |
3004 | |
2166 | /*****************************************************************************/ |
3005 | /*****************************************************************************/ |
2167 | |
3006 | |
2168 | void |
3007 | void |
… | |
… | |
2170 | { |
3009 | { |
2171 | EV_CB_INVOKE ((W)w, revents); |
3010 | EV_CB_INVOKE ((W)w, revents); |
2172 | } |
3011 | } |
2173 | |
3012 | |
2174 | unsigned int |
3013 | unsigned int |
2175 | ev_pending_count (EV_P) |
3014 | ev_pending_count (EV_P) EV_THROW |
2176 | { |
3015 | { |
2177 | int pri; |
3016 | int pri; |
2178 | unsigned int count = 0; |
3017 | unsigned int count = 0; |
2179 | |
3018 | |
2180 | for (pri = NUMPRI; pri--; ) |
3019 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2184 | } |
3023 | } |
2185 | |
3024 | |
2186 | void noinline |
3025 | void noinline |
2187 | ev_invoke_pending (EV_P) |
3026 | ev_invoke_pending (EV_P) |
2188 | { |
3027 | { |
2189 | int pri; |
3028 | pendingpri = NUMPRI; |
2190 | |
3029 | |
2191 | for (pri = NUMPRI; pri--; ) |
3030 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3031 | { |
|
|
3032 | --pendingpri; |
|
|
3033 | |
2192 | while (pendingcnt [pri]) |
3034 | while (pendingcnt [pendingpri]) |
2193 | { |
3035 | { |
2194 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3036 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2195 | |
3037 | |
2196 | p->w->pending = 0; |
3038 | p->w->pending = 0; |
2197 | EV_CB_INVOKE (p->w, p->events); |
3039 | EV_CB_INVOKE (p->w, p->events); |
2198 | EV_FREQUENT_CHECK; |
3040 | EV_FREQUENT_CHECK; |
2199 | } |
3041 | } |
|
|
3042 | } |
2200 | } |
3043 | } |
2201 | |
3044 | |
2202 | #if EV_IDLE_ENABLE |
3045 | #if EV_IDLE_ENABLE |
2203 | /* make idle watchers pending. this handles the "call-idle */ |
3046 | /* make idle watchers pending. this handles the "call-idle */ |
2204 | /* only when higher priorities are idle" logic */ |
3047 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2294 | { |
3137 | { |
2295 | EV_FREQUENT_CHECK; |
3138 | EV_FREQUENT_CHECK; |
2296 | |
3139 | |
2297 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3140 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2298 | { |
3141 | { |
2299 | int feed_count = 0; |
|
|
2300 | |
|
|
2301 | do |
3142 | do |
2302 | { |
3143 | { |
2303 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3144 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2304 | |
3145 | |
2305 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3146 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2332 | } |
3173 | } |
2333 | } |
3174 | } |
2334 | |
3175 | |
2335 | /* simply recalculate all periodics */ |
3176 | /* simply recalculate all periodics */ |
2336 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3177 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2337 | static void noinline |
3178 | static void noinline ecb_cold |
2338 | periodics_reschedule (EV_P) |
3179 | periodics_reschedule (EV_P) |
2339 | { |
3180 | { |
2340 | int i; |
3181 | int i; |
2341 | |
3182 | |
2342 | /* adjust periodics after time jump */ |
3183 | /* adjust periodics after time jump */ |
… | |
… | |
2355 | reheap (periodics, periodiccnt); |
3196 | reheap (periodics, periodiccnt); |
2356 | } |
3197 | } |
2357 | #endif |
3198 | #endif |
2358 | |
3199 | |
2359 | /* adjust all timers by a given offset */ |
3200 | /* adjust all timers by a given offset */ |
2360 | static void noinline |
3201 | static void noinline ecb_cold |
2361 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3202 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2362 | { |
3203 | { |
2363 | int i; |
3204 | int i; |
2364 | |
3205 | |
2365 | for (i = 0; i < timercnt; ++i) |
3206 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2439 | |
3280 | |
2440 | mn_now = ev_rt_now; |
3281 | mn_now = ev_rt_now; |
2441 | } |
3282 | } |
2442 | } |
3283 | } |
2443 | |
3284 | |
2444 | void |
3285 | int |
2445 | ev_run (EV_P_ int flags) |
3286 | ev_run (EV_P_ int flags) |
2446 | { |
3287 | { |
2447 | #if EV_FEATURE_API |
3288 | #if EV_FEATURE_API |
2448 | ++loop_depth; |
3289 | ++loop_depth; |
2449 | #endif |
3290 | #endif |
… | |
… | |
2507 | ev_tstamp prev_mn_now = mn_now; |
3348 | ev_tstamp prev_mn_now = mn_now; |
2508 | |
3349 | |
2509 | /* update time to cancel out callback processing overhead */ |
3350 | /* update time to cancel out callback processing overhead */ |
2510 | time_update (EV_A_ 1e100); |
3351 | time_update (EV_A_ 1e100); |
2511 | |
3352 | |
|
|
3353 | /* from now on, we want a pipe-wake-up */ |
|
|
3354 | pipe_write_wanted = 1; |
|
|
3355 | |
|
|
3356 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3357 | |
2512 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3358 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2513 | { |
3359 | { |
2514 | waittime = MAX_BLOCKTIME; |
3360 | waittime = MAX_BLOCKTIME; |
2515 | |
3361 | |
2516 | if (timercnt) |
3362 | if (timercnt) |
2517 | { |
3363 | { |
2518 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3364 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2519 | if (waittime > to) waittime = to; |
3365 | if (waittime > to) waittime = to; |
2520 | } |
3366 | } |
2521 | |
3367 | |
2522 | #if EV_PERIODIC_ENABLE |
3368 | #if EV_PERIODIC_ENABLE |
2523 | if (periodiccnt) |
3369 | if (periodiccnt) |
2524 | { |
3370 | { |
2525 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3371 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2526 | if (waittime > to) waittime = to; |
3372 | if (waittime > to) waittime = to; |
2527 | } |
3373 | } |
2528 | #endif |
3374 | #endif |
2529 | |
3375 | |
2530 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3376 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2531 | if (expect_false (waittime < timeout_blocktime)) |
3377 | if (expect_false (waittime < timeout_blocktime)) |
2532 | waittime = timeout_blocktime; |
3378 | waittime = timeout_blocktime; |
|
|
3379 | |
|
|
3380 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3381 | /* to pass a minimum nonzero value to the backend */ |
|
|
3382 | if (expect_false (waittime < backend_mintime)) |
|
|
3383 | waittime = backend_mintime; |
2533 | |
3384 | |
2534 | /* extra check because io_blocktime is commonly 0 */ |
3385 | /* extra check because io_blocktime is commonly 0 */ |
2535 | if (expect_false (io_blocktime)) |
3386 | if (expect_false (io_blocktime)) |
2536 | { |
3387 | { |
2537 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3388 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2538 | |
3389 | |
2539 | if (sleeptime > waittime - backend_fudge) |
3390 | if (sleeptime > waittime - backend_mintime) |
2540 | sleeptime = waittime - backend_fudge; |
3391 | sleeptime = waittime - backend_mintime; |
2541 | |
3392 | |
2542 | if (expect_true (sleeptime > 0.)) |
3393 | if (expect_true (sleeptime > 0.)) |
2543 | { |
3394 | { |
2544 | ev_sleep (sleeptime); |
3395 | ev_sleep (sleeptime); |
2545 | waittime -= sleeptime; |
3396 | waittime -= sleeptime; |
… | |
… | |
2552 | #endif |
3403 | #endif |
2553 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3404 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2554 | backend_poll (EV_A_ waittime); |
3405 | backend_poll (EV_A_ waittime); |
2555 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3406 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2556 | |
3407 | |
|
|
3408 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3409 | |
|
|
3410 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3411 | if (pipe_write_skipped) |
|
|
3412 | { |
|
|
3413 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3414 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3415 | } |
|
|
3416 | |
|
|
3417 | |
2557 | /* update ev_rt_now, do magic */ |
3418 | /* update ev_rt_now, do magic */ |
2558 | time_update (EV_A_ waittime + sleeptime); |
3419 | time_update (EV_A_ waittime + sleeptime); |
2559 | } |
3420 | } |
2560 | |
3421 | |
2561 | /* queue pending timers and reschedule them */ |
3422 | /* queue pending timers and reschedule them */ |
… | |
… | |
2587 | loop_done = EVBREAK_CANCEL; |
3448 | loop_done = EVBREAK_CANCEL; |
2588 | |
3449 | |
2589 | #if EV_FEATURE_API |
3450 | #if EV_FEATURE_API |
2590 | --loop_depth; |
3451 | --loop_depth; |
2591 | #endif |
3452 | #endif |
|
|
3453 | |
|
|
3454 | return activecnt; |
2592 | } |
3455 | } |
2593 | |
3456 | |
2594 | void |
3457 | void |
2595 | ev_break (EV_P_ int how) |
3458 | ev_break (EV_P_ int how) EV_THROW |
2596 | { |
3459 | { |
2597 | loop_done = how; |
3460 | loop_done = how; |
2598 | } |
3461 | } |
2599 | |
3462 | |
2600 | void |
3463 | void |
2601 | ev_ref (EV_P) |
3464 | ev_ref (EV_P) EV_THROW |
2602 | { |
3465 | { |
2603 | ++activecnt; |
3466 | ++activecnt; |
2604 | } |
3467 | } |
2605 | |
3468 | |
2606 | void |
3469 | void |
2607 | ev_unref (EV_P) |
3470 | ev_unref (EV_P) EV_THROW |
2608 | { |
3471 | { |
2609 | --activecnt; |
3472 | --activecnt; |
2610 | } |
3473 | } |
2611 | |
3474 | |
2612 | void |
3475 | void |
2613 | ev_now_update (EV_P) |
3476 | ev_now_update (EV_P) EV_THROW |
2614 | { |
3477 | { |
2615 | time_update (EV_A_ 1e100); |
3478 | time_update (EV_A_ 1e100); |
2616 | } |
3479 | } |
2617 | |
3480 | |
2618 | void |
3481 | void |
2619 | ev_suspend (EV_P) |
3482 | ev_suspend (EV_P) EV_THROW |
2620 | { |
3483 | { |
2621 | ev_now_update (EV_A); |
3484 | ev_now_update (EV_A); |
2622 | } |
3485 | } |
2623 | |
3486 | |
2624 | void |
3487 | void |
2625 | ev_resume (EV_P) |
3488 | ev_resume (EV_P) EV_THROW |
2626 | { |
3489 | { |
2627 | ev_tstamp mn_prev = mn_now; |
3490 | ev_tstamp mn_prev = mn_now; |
2628 | |
3491 | |
2629 | ev_now_update (EV_A); |
3492 | ev_now_update (EV_A); |
2630 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3493 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2669 | w->pending = 0; |
3532 | w->pending = 0; |
2670 | } |
3533 | } |
2671 | } |
3534 | } |
2672 | |
3535 | |
2673 | int |
3536 | int |
2674 | ev_clear_pending (EV_P_ void *w) |
3537 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2675 | { |
3538 | { |
2676 | W w_ = (W)w; |
3539 | W w_ = (W)w; |
2677 | int pending = w_->pending; |
3540 | int pending = w_->pending; |
2678 | |
3541 | |
2679 | if (expect_true (pending)) |
3542 | if (expect_true (pending)) |
… | |
… | |
2712 | } |
3575 | } |
2713 | |
3576 | |
2714 | /*****************************************************************************/ |
3577 | /*****************************************************************************/ |
2715 | |
3578 | |
2716 | void noinline |
3579 | void noinline |
2717 | ev_io_start (EV_P_ ev_io *w) |
3580 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2718 | { |
3581 | { |
2719 | int fd = w->fd; |
3582 | int fd = w->fd; |
2720 | |
3583 | |
2721 | if (expect_false (ev_is_active (w))) |
3584 | if (expect_false (ev_is_active (w))) |
2722 | return; |
3585 | return; |
… | |
… | |
2728 | |
3591 | |
2729 | ev_start (EV_A_ (W)w, 1); |
3592 | ev_start (EV_A_ (W)w, 1); |
2730 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3593 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2731 | wlist_add (&anfds[fd].head, (WL)w); |
3594 | wlist_add (&anfds[fd].head, (WL)w); |
2732 | |
3595 | |
|
|
3596 | /* common bug, apparently */ |
|
|
3597 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3598 | |
2733 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3599 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2734 | w->events &= ~EV__IOFDSET; |
3600 | w->events &= ~EV__IOFDSET; |
2735 | |
3601 | |
2736 | EV_FREQUENT_CHECK; |
3602 | EV_FREQUENT_CHECK; |
2737 | } |
3603 | } |
2738 | |
3604 | |
2739 | void noinline |
3605 | void noinline |
2740 | ev_io_stop (EV_P_ ev_io *w) |
3606 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2741 | { |
3607 | { |
2742 | clear_pending (EV_A_ (W)w); |
3608 | clear_pending (EV_A_ (W)w); |
2743 | if (expect_false (!ev_is_active (w))) |
3609 | if (expect_false (!ev_is_active (w))) |
2744 | return; |
3610 | return; |
2745 | |
3611 | |
… | |
… | |
2754 | |
3620 | |
2755 | EV_FREQUENT_CHECK; |
3621 | EV_FREQUENT_CHECK; |
2756 | } |
3622 | } |
2757 | |
3623 | |
2758 | void noinline |
3624 | void noinline |
2759 | ev_timer_start (EV_P_ ev_timer *w) |
3625 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2760 | { |
3626 | { |
2761 | if (expect_false (ev_is_active (w))) |
3627 | if (expect_false (ev_is_active (w))) |
2762 | return; |
3628 | return; |
2763 | |
3629 | |
2764 | ev_at (w) += mn_now; |
3630 | ev_at (w) += mn_now; |
… | |
… | |
2778 | |
3644 | |
2779 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3645 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2780 | } |
3646 | } |
2781 | |
3647 | |
2782 | void noinline |
3648 | void noinline |
2783 | ev_timer_stop (EV_P_ ev_timer *w) |
3649 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2784 | { |
3650 | { |
2785 | clear_pending (EV_A_ (W)w); |
3651 | clear_pending (EV_A_ (W)w); |
2786 | if (expect_false (!ev_is_active (w))) |
3652 | if (expect_false (!ev_is_active (w))) |
2787 | return; |
3653 | return; |
2788 | |
3654 | |
… | |
… | |
2808 | |
3674 | |
2809 | EV_FREQUENT_CHECK; |
3675 | EV_FREQUENT_CHECK; |
2810 | } |
3676 | } |
2811 | |
3677 | |
2812 | void noinline |
3678 | void noinline |
2813 | ev_timer_again (EV_P_ ev_timer *w) |
3679 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2814 | { |
3680 | { |
2815 | EV_FREQUENT_CHECK; |
3681 | EV_FREQUENT_CHECK; |
|
|
3682 | |
|
|
3683 | clear_pending (EV_A_ (W)w); |
2816 | |
3684 | |
2817 | if (ev_is_active (w)) |
3685 | if (ev_is_active (w)) |
2818 | { |
3686 | { |
2819 | if (w->repeat) |
3687 | if (w->repeat) |
2820 | { |
3688 | { |
… | |
… | |
2833 | |
3701 | |
2834 | EV_FREQUENT_CHECK; |
3702 | EV_FREQUENT_CHECK; |
2835 | } |
3703 | } |
2836 | |
3704 | |
2837 | ev_tstamp |
3705 | ev_tstamp |
2838 | ev_timer_remaining (EV_P_ ev_timer *w) |
3706 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2839 | { |
3707 | { |
2840 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3708 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2841 | } |
3709 | } |
2842 | |
3710 | |
2843 | #if EV_PERIODIC_ENABLE |
3711 | #if EV_PERIODIC_ENABLE |
2844 | void noinline |
3712 | void noinline |
2845 | ev_periodic_start (EV_P_ ev_periodic *w) |
3713 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2846 | { |
3714 | { |
2847 | if (expect_false (ev_is_active (w))) |
3715 | if (expect_false (ev_is_active (w))) |
2848 | return; |
3716 | return; |
2849 | |
3717 | |
2850 | if (w->reschedule_cb) |
3718 | if (w->reschedule_cb) |
… | |
… | |
2870 | |
3738 | |
2871 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3739 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2872 | } |
3740 | } |
2873 | |
3741 | |
2874 | void noinline |
3742 | void noinline |
2875 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3743 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2876 | { |
3744 | { |
2877 | clear_pending (EV_A_ (W)w); |
3745 | clear_pending (EV_A_ (W)w); |
2878 | if (expect_false (!ev_is_active (w))) |
3746 | if (expect_false (!ev_is_active (w))) |
2879 | return; |
3747 | return; |
2880 | |
3748 | |
… | |
… | |
2898 | |
3766 | |
2899 | EV_FREQUENT_CHECK; |
3767 | EV_FREQUENT_CHECK; |
2900 | } |
3768 | } |
2901 | |
3769 | |
2902 | void noinline |
3770 | void noinline |
2903 | ev_periodic_again (EV_P_ ev_periodic *w) |
3771 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2904 | { |
3772 | { |
2905 | /* TODO: use adjustheap and recalculation */ |
3773 | /* TODO: use adjustheap and recalculation */ |
2906 | ev_periodic_stop (EV_A_ w); |
3774 | ev_periodic_stop (EV_A_ w); |
2907 | ev_periodic_start (EV_A_ w); |
3775 | ev_periodic_start (EV_A_ w); |
2908 | } |
3776 | } |
… | |
… | |
2913 | #endif |
3781 | #endif |
2914 | |
3782 | |
2915 | #if EV_SIGNAL_ENABLE |
3783 | #if EV_SIGNAL_ENABLE |
2916 | |
3784 | |
2917 | void noinline |
3785 | void noinline |
2918 | ev_signal_start (EV_P_ ev_signal *w) |
3786 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2919 | { |
3787 | { |
2920 | if (expect_false (ev_is_active (w))) |
3788 | if (expect_false (ev_is_active (w))) |
2921 | return; |
3789 | return; |
2922 | |
3790 | |
2923 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3791 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2925 | #if EV_MULTIPLICITY |
3793 | #if EV_MULTIPLICITY |
2926 | assert (("libev: a signal must not be attached to two different loops", |
3794 | assert (("libev: a signal must not be attached to two different loops", |
2927 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3795 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2928 | |
3796 | |
2929 | signals [w->signum - 1].loop = EV_A; |
3797 | signals [w->signum - 1].loop = EV_A; |
|
|
3798 | ECB_MEMORY_FENCE_RELEASE; |
2930 | #endif |
3799 | #endif |
2931 | |
3800 | |
2932 | EV_FREQUENT_CHECK; |
3801 | EV_FREQUENT_CHECK; |
2933 | |
3802 | |
2934 | #if EV_USE_SIGNALFD |
3803 | #if EV_USE_SIGNALFD |
… | |
… | |
2994 | |
3863 | |
2995 | EV_FREQUENT_CHECK; |
3864 | EV_FREQUENT_CHECK; |
2996 | } |
3865 | } |
2997 | |
3866 | |
2998 | void noinline |
3867 | void noinline |
2999 | ev_signal_stop (EV_P_ ev_signal *w) |
3868 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3000 | { |
3869 | { |
3001 | clear_pending (EV_A_ (W)w); |
3870 | clear_pending (EV_A_ (W)w); |
3002 | if (expect_false (!ev_is_active (w))) |
3871 | if (expect_false (!ev_is_active (w))) |
3003 | return; |
3872 | return; |
3004 | |
3873 | |
… | |
… | |
3035 | #endif |
3904 | #endif |
3036 | |
3905 | |
3037 | #if EV_CHILD_ENABLE |
3906 | #if EV_CHILD_ENABLE |
3038 | |
3907 | |
3039 | void |
3908 | void |
3040 | ev_child_start (EV_P_ ev_child *w) |
3909 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3041 | { |
3910 | { |
3042 | #if EV_MULTIPLICITY |
3911 | #if EV_MULTIPLICITY |
3043 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3912 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3044 | #endif |
3913 | #endif |
3045 | if (expect_false (ev_is_active (w))) |
3914 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3052 | |
3921 | |
3053 | EV_FREQUENT_CHECK; |
3922 | EV_FREQUENT_CHECK; |
3054 | } |
3923 | } |
3055 | |
3924 | |
3056 | void |
3925 | void |
3057 | ev_child_stop (EV_P_ ev_child *w) |
3926 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3058 | { |
3927 | { |
3059 | clear_pending (EV_A_ (W)w); |
3928 | clear_pending (EV_A_ (W)w); |
3060 | if (expect_false (!ev_is_active (w))) |
3929 | if (expect_false (!ev_is_active (w))) |
3061 | return; |
3930 | return; |
3062 | |
3931 | |
… | |
… | |
3089 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3958 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3090 | |
3959 | |
3091 | static void noinline |
3960 | static void noinline |
3092 | infy_add (EV_P_ ev_stat *w) |
3961 | infy_add (EV_P_ ev_stat *w) |
3093 | { |
3962 | { |
3094 | 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); |
3963 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3964 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3965 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3966 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3095 | |
3967 | |
3096 | if (w->wd >= 0) |
3968 | if (w->wd >= 0) |
3097 | { |
3969 | { |
3098 | struct statfs sfs; |
3970 | struct statfs sfs; |
3099 | |
3971 | |
… | |
… | |
3103 | |
3975 | |
3104 | if (!fs_2625) |
3976 | if (!fs_2625) |
3105 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3977 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3106 | else if (!statfs (w->path, &sfs) |
3978 | else if (!statfs (w->path, &sfs) |
3107 | && (sfs.f_type == 0x1373 /* devfs */ |
3979 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3980 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3981 | || sfs.f_type == 0x4d44 /* msdos */ |
3108 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3982 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3983 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3984 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3985 | || sfs.f_type == 0x5346544e /* ntfs */ |
3109 | || sfs.f_type == 0x3153464a /* jfs */ |
3986 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3987 | || sfs.f_type == 0x9123683e /* btrfs */ |
3110 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3988 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3111 | || sfs.f_type == 0x01021994 /* tempfs */ |
3989 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3112 | || sfs.f_type == 0x58465342 /* xfs */)) |
3990 | || sfs.f_type == 0x58465342 /* xfs */)) |
3113 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3991 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3114 | else |
3992 | else |
3115 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3993 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3116 | } |
3994 | } |
… | |
… | |
3214 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4092 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3215 | ofs += sizeof (struct inotify_event) + ev->len; |
4093 | ofs += sizeof (struct inotify_event) + ev->len; |
3216 | } |
4094 | } |
3217 | } |
4095 | } |
3218 | |
4096 | |
3219 | inline_size void |
4097 | inline_size void ecb_cold |
3220 | ev_check_2625 (EV_P) |
4098 | ev_check_2625 (EV_P) |
3221 | { |
4099 | { |
3222 | /* kernels < 2.6.25 are borked |
4100 | /* kernels < 2.6.25 are borked |
3223 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4101 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3224 | */ |
4102 | */ |
… | |
… | |
3229 | } |
4107 | } |
3230 | |
4108 | |
3231 | inline_size int |
4109 | inline_size int |
3232 | infy_newfd (void) |
4110 | infy_newfd (void) |
3233 | { |
4111 | { |
3234 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4112 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3235 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4113 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3236 | if (fd >= 0) |
4114 | if (fd >= 0) |
3237 | return fd; |
4115 | return fd; |
3238 | #endif |
4116 | #endif |
3239 | return inotify_init (); |
4117 | return inotify_init (); |
… | |
… | |
3314 | #else |
4192 | #else |
3315 | # define EV_LSTAT(p,b) lstat (p, b) |
4193 | # define EV_LSTAT(p,b) lstat (p, b) |
3316 | #endif |
4194 | #endif |
3317 | |
4195 | |
3318 | void |
4196 | void |
3319 | ev_stat_stat (EV_P_ ev_stat *w) |
4197 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3320 | { |
4198 | { |
3321 | if (lstat (w->path, &w->attr) < 0) |
4199 | if (lstat (w->path, &w->attr) < 0) |
3322 | w->attr.st_nlink = 0; |
4200 | w->attr.st_nlink = 0; |
3323 | else if (!w->attr.st_nlink) |
4201 | else if (!w->attr.st_nlink) |
3324 | w->attr.st_nlink = 1; |
4202 | w->attr.st_nlink = 1; |
… | |
… | |
3363 | ev_feed_event (EV_A_ w, EV_STAT); |
4241 | ev_feed_event (EV_A_ w, EV_STAT); |
3364 | } |
4242 | } |
3365 | } |
4243 | } |
3366 | |
4244 | |
3367 | void |
4245 | void |
3368 | ev_stat_start (EV_P_ ev_stat *w) |
4246 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3369 | { |
4247 | { |
3370 | if (expect_false (ev_is_active (w))) |
4248 | if (expect_false (ev_is_active (w))) |
3371 | return; |
4249 | return; |
3372 | |
4250 | |
3373 | ev_stat_stat (EV_A_ w); |
4251 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3394 | |
4272 | |
3395 | EV_FREQUENT_CHECK; |
4273 | EV_FREQUENT_CHECK; |
3396 | } |
4274 | } |
3397 | |
4275 | |
3398 | void |
4276 | void |
3399 | ev_stat_stop (EV_P_ ev_stat *w) |
4277 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3400 | { |
4278 | { |
3401 | clear_pending (EV_A_ (W)w); |
4279 | clear_pending (EV_A_ (W)w); |
3402 | if (expect_false (!ev_is_active (w))) |
4280 | if (expect_false (!ev_is_active (w))) |
3403 | return; |
4281 | return; |
3404 | |
4282 | |
… | |
… | |
3420 | } |
4298 | } |
3421 | #endif |
4299 | #endif |
3422 | |
4300 | |
3423 | #if EV_IDLE_ENABLE |
4301 | #if EV_IDLE_ENABLE |
3424 | void |
4302 | void |
3425 | ev_idle_start (EV_P_ ev_idle *w) |
4303 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3426 | { |
4304 | { |
3427 | if (expect_false (ev_is_active (w))) |
4305 | if (expect_false (ev_is_active (w))) |
3428 | return; |
4306 | return; |
3429 | |
4307 | |
3430 | pri_adjust (EV_A_ (W)w); |
4308 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3443 | |
4321 | |
3444 | EV_FREQUENT_CHECK; |
4322 | EV_FREQUENT_CHECK; |
3445 | } |
4323 | } |
3446 | |
4324 | |
3447 | void |
4325 | void |
3448 | ev_idle_stop (EV_P_ ev_idle *w) |
4326 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3449 | { |
4327 | { |
3450 | clear_pending (EV_A_ (W)w); |
4328 | clear_pending (EV_A_ (W)w); |
3451 | if (expect_false (!ev_is_active (w))) |
4329 | if (expect_false (!ev_is_active (w))) |
3452 | return; |
4330 | return; |
3453 | |
4331 | |
… | |
… | |
3467 | } |
4345 | } |
3468 | #endif |
4346 | #endif |
3469 | |
4347 | |
3470 | #if EV_PREPARE_ENABLE |
4348 | #if EV_PREPARE_ENABLE |
3471 | void |
4349 | void |
3472 | ev_prepare_start (EV_P_ ev_prepare *w) |
4350 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3473 | { |
4351 | { |
3474 | if (expect_false (ev_is_active (w))) |
4352 | if (expect_false (ev_is_active (w))) |
3475 | return; |
4353 | return; |
3476 | |
4354 | |
3477 | EV_FREQUENT_CHECK; |
4355 | EV_FREQUENT_CHECK; |
… | |
… | |
3482 | |
4360 | |
3483 | EV_FREQUENT_CHECK; |
4361 | EV_FREQUENT_CHECK; |
3484 | } |
4362 | } |
3485 | |
4363 | |
3486 | void |
4364 | void |
3487 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4365 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3488 | { |
4366 | { |
3489 | clear_pending (EV_A_ (W)w); |
4367 | clear_pending (EV_A_ (W)w); |
3490 | if (expect_false (!ev_is_active (w))) |
4368 | if (expect_false (!ev_is_active (w))) |
3491 | return; |
4369 | return; |
3492 | |
4370 | |
… | |
… | |
3505 | } |
4383 | } |
3506 | #endif |
4384 | #endif |
3507 | |
4385 | |
3508 | #if EV_CHECK_ENABLE |
4386 | #if EV_CHECK_ENABLE |
3509 | void |
4387 | void |
3510 | ev_check_start (EV_P_ ev_check *w) |
4388 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3511 | { |
4389 | { |
3512 | if (expect_false (ev_is_active (w))) |
4390 | if (expect_false (ev_is_active (w))) |
3513 | return; |
4391 | return; |
3514 | |
4392 | |
3515 | EV_FREQUENT_CHECK; |
4393 | EV_FREQUENT_CHECK; |
… | |
… | |
3520 | |
4398 | |
3521 | EV_FREQUENT_CHECK; |
4399 | EV_FREQUENT_CHECK; |
3522 | } |
4400 | } |
3523 | |
4401 | |
3524 | void |
4402 | void |
3525 | ev_check_stop (EV_P_ ev_check *w) |
4403 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3526 | { |
4404 | { |
3527 | clear_pending (EV_A_ (W)w); |
4405 | clear_pending (EV_A_ (W)w); |
3528 | if (expect_false (!ev_is_active (w))) |
4406 | if (expect_false (!ev_is_active (w))) |
3529 | return; |
4407 | return; |
3530 | |
4408 | |
… | |
… | |
3543 | } |
4421 | } |
3544 | #endif |
4422 | #endif |
3545 | |
4423 | |
3546 | #if EV_EMBED_ENABLE |
4424 | #if EV_EMBED_ENABLE |
3547 | void noinline |
4425 | void noinline |
3548 | ev_embed_sweep (EV_P_ ev_embed *w) |
4426 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3549 | { |
4427 | { |
3550 | ev_run (w->other, EVRUN_NOWAIT); |
4428 | ev_run (w->other, EVRUN_NOWAIT); |
3551 | } |
4429 | } |
3552 | |
4430 | |
3553 | static void |
4431 | static void |
… | |
… | |
3601 | ev_idle_stop (EV_A_ idle); |
4479 | ev_idle_stop (EV_A_ idle); |
3602 | } |
4480 | } |
3603 | #endif |
4481 | #endif |
3604 | |
4482 | |
3605 | void |
4483 | void |
3606 | ev_embed_start (EV_P_ ev_embed *w) |
4484 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3607 | { |
4485 | { |
3608 | if (expect_false (ev_is_active (w))) |
4486 | if (expect_false (ev_is_active (w))) |
3609 | return; |
4487 | return; |
3610 | |
4488 | |
3611 | { |
4489 | { |
… | |
… | |
3632 | |
4510 | |
3633 | EV_FREQUENT_CHECK; |
4511 | EV_FREQUENT_CHECK; |
3634 | } |
4512 | } |
3635 | |
4513 | |
3636 | void |
4514 | void |
3637 | ev_embed_stop (EV_P_ ev_embed *w) |
4515 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3638 | { |
4516 | { |
3639 | clear_pending (EV_A_ (W)w); |
4517 | clear_pending (EV_A_ (W)w); |
3640 | if (expect_false (!ev_is_active (w))) |
4518 | if (expect_false (!ev_is_active (w))) |
3641 | return; |
4519 | return; |
3642 | |
4520 | |
… | |
… | |
3652 | } |
4530 | } |
3653 | #endif |
4531 | #endif |
3654 | |
4532 | |
3655 | #if EV_FORK_ENABLE |
4533 | #if EV_FORK_ENABLE |
3656 | void |
4534 | void |
3657 | ev_fork_start (EV_P_ ev_fork *w) |
4535 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3658 | { |
4536 | { |
3659 | if (expect_false (ev_is_active (w))) |
4537 | if (expect_false (ev_is_active (w))) |
3660 | return; |
4538 | return; |
3661 | |
4539 | |
3662 | EV_FREQUENT_CHECK; |
4540 | EV_FREQUENT_CHECK; |
… | |
… | |
3667 | |
4545 | |
3668 | EV_FREQUENT_CHECK; |
4546 | EV_FREQUENT_CHECK; |
3669 | } |
4547 | } |
3670 | |
4548 | |
3671 | void |
4549 | void |
3672 | ev_fork_stop (EV_P_ ev_fork *w) |
4550 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3673 | { |
4551 | { |
3674 | clear_pending (EV_A_ (W)w); |
4552 | clear_pending (EV_A_ (W)w); |
3675 | if (expect_false (!ev_is_active (w))) |
4553 | if (expect_false (!ev_is_active (w))) |
3676 | return; |
4554 | return; |
3677 | |
4555 | |
… | |
… | |
3690 | } |
4568 | } |
3691 | #endif |
4569 | #endif |
3692 | |
4570 | |
3693 | #if EV_CLEANUP_ENABLE |
4571 | #if EV_CLEANUP_ENABLE |
3694 | void |
4572 | void |
3695 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4573 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3696 | { |
4574 | { |
3697 | if (expect_false (ev_is_active (w))) |
4575 | if (expect_false (ev_is_active (w))) |
3698 | return; |
4576 | return; |
3699 | |
4577 | |
3700 | EV_FREQUENT_CHECK; |
4578 | EV_FREQUENT_CHECK; |
… | |
… | |
3707 | ev_unref (EV_A); |
4585 | ev_unref (EV_A); |
3708 | EV_FREQUENT_CHECK; |
4586 | EV_FREQUENT_CHECK; |
3709 | } |
4587 | } |
3710 | |
4588 | |
3711 | void |
4589 | void |
3712 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4590 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3713 | { |
4591 | { |
3714 | clear_pending (EV_A_ (W)w); |
4592 | clear_pending (EV_A_ (W)w); |
3715 | if (expect_false (!ev_is_active (w))) |
4593 | if (expect_false (!ev_is_active (w))) |
3716 | return; |
4594 | return; |
3717 | |
4595 | |
… | |
… | |
3731 | } |
4609 | } |
3732 | #endif |
4610 | #endif |
3733 | |
4611 | |
3734 | #if EV_ASYNC_ENABLE |
4612 | #if EV_ASYNC_ENABLE |
3735 | void |
4613 | void |
3736 | ev_async_start (EV_P_ ev_async *w) |
4614 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3737 | { |
4615 | { |
3738 | if (expect_false (ev_is_active (w))) |
4616 | if (expect_false (ev_is_active (w))) |
3739 | return; |
4617 | return; |
3740 | |
4618 | |
3741 | w->sent = 0; |
4619 | w->sent = 0; |
… | |
… | |
3750 | |
4628 | |
3751 | EV_FREQUENT_CHECK; |
4629 | EV_FREQUENT_CHECK; |
3752 | } |
4630 | } |
3753 | |
4631 | |
3754 | void |
4632 | void |
3755 | ev_async_stop (EV_P_ ev_async *w) |
4633 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3756 | { |
4634 | { |
3757 | clear_pending (EV_A_ (W)w); |
4635 | clear_pending (EV_A_ (W)w); |
3758 | if (expect_false (!ev_is_active (w))) |
4636 | if (expect_false (!ev_is_active (w))) |
3759 | return; |
4637 | return; |
3760 | |
4638 | |
… | |
… | |
3771 | |
4649 | |
3772 | EV_FREQUENT_CHECK; |
4650 | EV_FREQUENT_CHECK; |
3773 | } |
4651 | } |
3774 | |
4652 | |
3775 | void |
4653 | void |
3776 | ev_async_send (EV_P_ ev_async *w) |
4654 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3777 | { |
4655 | { |
3778 | w->sent = 1; |
4656 | w->sent = 1; |
3779 | evpipe_write (EV_A_ &async_pending); |
4657 | evpipe_write (EV_A_ &async_pending); |
3780 | } |
4658 | } |
3781 | #endif |
4659 | #endif |
… | |
… | |
3818 | |
4696 | |
3819 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4697 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3820 | } |
4698 | } |
3821 | |
4699 | |
3822 | void |
4700 | void |
3823 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4701 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3824 | { |
4702 | { |
3825 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4703 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3826 | |
4704 | |
3827 | if (expect_false (!once)) |
4705 | if (expect_false (!once)) |
3828 | { |
4706 | { |
… | |
… | |
3849 | } |
4727 | } |
3850 | |
4728 | |
3851 | /*****************************************************************************/ |
4729 | /*****************************************************************************/ |
3852 | |
4730 | |
3853 | #if EV_WALK_ENABLE |
4731 | #if EV_WALK_ENABLE |
3854 | void |
4732 | void ecb_cold |
3855 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4733 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3856 | { |
4734 | { |
3857 | int i, j; |
4735 | int i, j; |
3858 | ev_watcher_list *wl, *wn; |
4736 | ev_watcher_list *wl, *wn; |
3859 | |
4737 | |
3860 | if (types & (EV_IO | EV_EMBED)) |
4738 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3903 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4781 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3904 | #endif |
4782 | #endif |
3905 | |
4783 | |
3906 | #if EV_IDLE_ENABLE |
4784 | #if EV_IDLE_ENABLE |
3907 | if (types & EV_IDLE) |
4785 | if (types & EV_IDLE) |
3908 | for (j = NUMPRI; i--; ) |
4786 | for (j = NUMPRI; j--; ) |
3909 | for (i = idlecnt [j]; i--; ) |
4787 | for (i = idlecnt [j]; i--; ) |
3910 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4788 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3911 | #endif |
4789 | #endif |
3912 | |
4790 | |
3913 | #if EV_FORK_ENABLE |
4791 | #if EV_FORK_ENABLE |
… | |
… | |
3966 | |
4844 | |
3967 | #if EV_MULTIPLICITY |
4845 | #if EV_MULTIPLICITY |
3968 | #include "ev_wrap.h" |
4846 | #include "ev_wrap.h" |
3969 | #endif |
4847 | #endif |
3970 | |
4848 | |
3971 | EV_CPP(}) |
|
|
3972 | |
|
|