1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
188 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
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189 | # undef EV_NO_SMP |
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190 | # define EV_NO_SMP 1 |
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191 | # undef ECB_NO_THREADS |
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192 | # define ECB_NO_THREADS 1 |
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193 | #endif |
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194 | #if EV_NO_SMP |
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195 | # undef EV_NO_SMP |
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196 | # define ECB_NO_SMP 1 |
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197 | #endif |
189 | |
198 | |
190 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
200 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
193 | # include <unistd.h> |
202 | # include <unistd.h> |
194 | #else |
203 | #else |
195 | # include <io.h> |
204 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
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|
206 | # include <winsock2.h> |
197 | # include <windows.h> |
207 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
210 | # endif |
201 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
211 | |
221 | |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
213 | |
223 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
216 | /* use what's provided */ |
226 | /* use what's provided */ |
217 | #elif defined (NSIG) |
227 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
245 | #else |
236 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
237 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
238 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
… | |
… | |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
261 | # endif |
252 | #endif |
262 | #endif |
253 | |
263 | |
254 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
267 | # else |
258 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
269 | # endif |
260 | #endif |
270 | #endif |
… | |
… | |
347 | |
357 | |
348 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
360 | #endif |
351 | |
361 | |
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362 | #ifdef ANDROID |
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363 | /* supposedly, android doesn't typedef fd_mask */ |
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364 | # undef EV_USE_SELECT |
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365 | # define EV_USE_SELECT 0 |
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366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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367 | # undef EV_USE_CLOCK_SYSCALL |
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368 | # define EV_USE_CLOCK_SYSCALL 0 |
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369 | #endif |
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370 | |
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371 | /* aix's poll.h seems to cause lots of trouble */ |
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372 | #ifdef _AIX |
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373 | /* AIX has a completely broken poll.h header */ |
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374 | # undef EV_USE_POLL |
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375 | # define EV_USE_POLL 0 |
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376 | #endif |
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377 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
353 | /* which makes programs even slower. might work on other unices, too. */ |
379 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
380 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
381 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
382 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
385 | # define EV_USE_MONOTONIC 1 |
360 | # else |
386 | # else |
… | |
… | |
363 | # endif |
389 | # endif |
364 | #endif |
390 | #endif |
365 | |
391 | |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
392 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
367 | |
393 | |
368 | #ifdef _AIX |
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369 | /* AIX has a completely broken poll.h header */ |
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370 | # undef EV_USE_POLL |
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371 | # define EV_USE_POLL 0 |
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372 | #endif |
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373 | |
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374 | #ifndef CLOCK_MONOTONIC |
394 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
395 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
396 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
397 | #endif |
378 | |
398 | |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
406 | # define EV_USE_INOTIFY 0 |
387 | #endif |
407 | #endif |
388 | |
408 | |
389 | #if !EV_USE_NANOSLEEP |
409 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
410 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
411 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
412 | # include <sys/select.h> |
393 | # endif |
413 | # endif |
394 | #endif |
414 | #endif |
395 | |
415 | |
396 | #if EV_USE_INOTIFY |
416 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
419 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
420 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
421 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
422 | # define EV_USE_INOTIFY 0 |
403 | # endif |
423 | # endif |
404 | #endif |
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405 | |
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406 | #if EV_SELECT_IS_WINSOCKET |
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407 | # include <winsock.h> |
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408 | #endif |
424 | #endif |
409 | |
425 | |
410 | #if EV_USE_EVENTFD |
426 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
428 | # include <stdint.h> |
… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
480 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
481 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
482 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
483 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
484 | |
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485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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486 | /* ECB.H BEGIN */ |
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487 | /* |
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488 | * libecb - http://software.schmorp.de/pkg/libecb |
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489 | * |
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490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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491 | * Copyright (©) 2011 Emanuele Giaquinta |
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492 | * All rights reserved. |
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493 | * |
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494 | * Redistribution and use in source and binary forms, with or without modifica- |
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495 | * tion, are permitted provided that the following conditions are met: |
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496 | * |
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497 | * 1. Redistributions of source code must retain the above copyright notice, |
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498 | * this list of conditions and the following disclaimer. |
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499 | * |
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500 | * 2. Redistributions in binary form must reproduce the above copyright |
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501 | * notice, this list of conditions and the following disclaimer in the |
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502 | * documentation and/or other materials provided with the distribution. |
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503 | * |
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504 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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505 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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506 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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507 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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508 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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509 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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513 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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514 | */ |
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515 | |
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516 | #ifndef ECB_H |
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517 | #define ECB_H |
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518 | |
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519 | /* 16 bits major, 16 bits minor */ |
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520 | #define ECB_VERSION 0x00010003 |
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521 | |
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522 | #ifdef _WIN32 |
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523 | typedef signed char int8_t; |
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524 | typedef unsigned char uint8_t; |
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525 | typedef signed short int16_t; |
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526 | typedef unsigned short uint16_t; |
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527 | typedef signed int int32_t; |
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528 | typedef unsigned int uint32_t; |
469 | #if __GNUC__ >= 4 |
529 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
530 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
531 | typedef unsigned long long uint64_t; |
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532 | #else /* _MSC_VER || __BORLANDC__ */ |
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533 | typedef signed __int64 int64_t; |
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534 | typedef unsigned __int64 uint64_t; |
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535 | #endif |
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536 | #ifdef _WIN64 |
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537 | #define ECB_PTRSIZE 8 |
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538 | typedef uint64_t uintptr_t; |
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539 | typedef int64_t intptr_t; |
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540 | #else |
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541 | #define ECB_PTRSIZE 4 |
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542 | typedef uint32_t uintptr_t; |
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543 | typedef int32_t intptr_t; |
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544 | #endif |
472 | #else |
545 | #else |
473 | # define expect(expr,value) (expr) |
546 | #include <inttypes.h> |
474 | # define noinline |
547 | #if UINTMAX_MAX > 0xffffffffU |
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
548 | #define ECB_PTRSIZE 8 |
476 | # define inline |
549 | #else |
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550 | #define ECB_PTRSIZE 4 |
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551 | #endif |
477 | # endif |
552 | #endif |
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553 | |
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554 | /* work around x32 idiocy by defining proper macros */ |
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555 | #if __x86_64 || _M_AMD64 |
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556 | #if __ILP32 |
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557 | #define ECB_AMD64_X32 1 |
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558 | #else |
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559 | #define ECB_AMD64 1 |
478 | #endif |
560 | #endif |
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561 | #endif |
479 | |
562 | |
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563 | /* many compilers define _GNUC_ to some versions but then only implement |
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564 | * what their idiot authors think are the "more important" extensions, |
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565 | * causing enormous grief in return for some better fake benchmark numbers. |
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566 | * or so. |
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567 | * we try to detect these and simply assume they are not gcc - if they have |
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568 | * an issue with that they should have done it right in the first place. |
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569 | */ |
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570 | #ifndef ECB_GCC_VERSION |
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571 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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572 | #define ECB_GCC_VERSION(major,minor) 0 |
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573 | #else |
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574 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
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575 | #endif |
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576 | #endif |
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577 | |
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578 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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580 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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581 | #define ECB_CPP (__cplusplus+0) |
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582 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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583 | |
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584 | #if ECB_CPP |
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585 | #define ECB_EXTERN_C extern "C" |
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586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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587 | #define ECB_EXTERN_C_END } |
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588 | #else |
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589 | #define ECB_EXTERN_C extern |
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590 | #define ECB_EXTERN_C_BEG |
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591 | #define ECB_EXTERN_C_END |
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592 | #endif |
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593 | |
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594 | /*****************************************************************************/ |
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595 | |
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596 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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597 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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598 | |
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599 | #if ECB_NO_THREADS |
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600 | #define ECB_NO_SMP 1 |
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601 | #endif |
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602 | |
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603 | #if ECB_NO_SMP |
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604 | #define ECB_MEMORY_FENCE do { } while (0) |
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605 | #endif |
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606 | |
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607 | #ifndef ECB_MEMORY_FENCE |
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608 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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609 | #if __i386 || __i386__ |
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610 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
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611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
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614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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625 | #elif __sparc || __sparc__ |
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626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
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627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
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629 | #elif defined __s390__ || defined __s390x__ |
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630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
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631 | #elif defined __mips__ |
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632 | /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ |
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633 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
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634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
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635 | #elif defined __alpha__ |
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636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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637 | #elif defined __hppa__ |
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638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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639 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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640 | #elif defined __ia64__ |
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641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
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642 | #elif defined __m68k__ |
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643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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644 | #elif defined __m88k__ |
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|
645 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
646 | #elif defined __sh__ |
|
|
647 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
648 | #endif |
|
|
649 | #endif |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #ifndef ECB_MEMORY_FENCE |
|
|
653 | #if ECB_GCC_VERSION(4,7) |
|
|
654 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
655 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
656 | |
|
|
657 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
658 | * without risking compile time errors with other compilers. We *could* |
|
|
659 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
660 | * around this shit time and again. |
|
|
661 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
662 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
663 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
664 | */ |
|
|
665 | |
|
|
666 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
667 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
668 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
669 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
670 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
671 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
672 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
673 | #elif defined _WIN32 |
|
|
674 | #include <WinNT.h> |
|
|
675 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
676 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
677 | #include <mbarrier.h> |
|
|
678 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
679 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
680 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
681 | #elif __xlC__ |
|
|
682 | #define ECB_MEMORY_FENCE __sync () |
|
|
683 | #endif |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #ifndef ECB_MEMORY_FENCE |
|
|
687 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
688 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
689 | /* not just C11 atomics and atomic accesses */ |
|
|
690 | #include <stdatomic.h> |
|
|
691 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
692 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
693 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
694 | /* for most usages, or gcc and clang have a bug */ |
|
|
695 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
696 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
697 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
698 | #endif |
|
|
699 | #endif |
|
|
700 | |
|
|
701 | #ifndef ECB_MEMORY_FENCE |
|
|
702 | #if !ECB_AVOID_PTHREADS |
|
|
703 | /* |
|
|
704 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
705 | * or failure to find pthread.h, then you should implement |
|
|
706 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
707 | * OR provide pthread.h and link against the posix thread library |
|
|
708 | * of your system. |
|
|
709 | */ |
|
|
710 | #include <pthread.h> |
|
|
711 | #define ECB_NEEDS_PTHREADS 1 |
|
|
712 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
713 | |
|
|
714 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
715 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
716 | #endif |
|
|
717 | #endif |
|
|
718 | |
|
|
719 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
720 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
721 | #endif |
|
|
722 | |
|
|
723 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
725 | #endif |
|
|
726 | |
|
|
727 | /*****************************************************************************/ |
|
|
728 | |
|
|
729 | #if __cplusplus |
|
|
730 | #define ecb_inline static inline |
|
|
731 | #elif ECB_GCC_VERSION(2,5) |
|
|
732 | #define ecb_inline static __inline__ |
|
|
733 | #elif ECB_C99 |
|
|
734 | #define ecb_inline static inline |
|
|
735 | #else |
|
|
736 | #define ecb_inline static |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if ECB_GCC_VERSION(3,3) |
|
|
740 | #define ecb_restrict __restrict__ |
|
|
741 | #elif ECB_C99 |
|
|
742 | #define ecb_restrict restrict |
|
|
743 | #else |
|
|
744 | #define ecb_restrict |
|
|
745 | #endif |
|
|
746 | |
|
|
747 | typedef int ecb_bool; |
|
|
748 | |
|
|
749 | #define ECB_CONCAT_(a, b) a ## b |
|
|
750 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
751 | #define ECB_STRINGIFY_(a) # a |
|
|
752 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
753 | |
|
|
754 | #define ecb_function_ ecb_inline |
|
|
755 | |
|
|
756 | #if ECB_GCC_VERSION(3,1) |
|
|
757 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
758 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
759 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
760 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
761 | #else |
|
|
762 | #define ecb_attribute(attrlist) |
|
|
763 | #define ecb_is_constant(expr) 0 |
|
|
764 | #define ecb_expect(expr,value) (expr) |
|
|
765 | #define ecb_prefetch(addr,rw,locality) |
|
|
766 | #endif |
|
|
767 | |
|
|
768 | /* no emulation for ecb_decltype */ |
|
|
769 | #if ECB_GCC_VERSION(4,5) |
|
|
770 | #define ecb_decltype(x) __decltype(x) |
|
|
771 | #elif ECB_GCC_VERSION(3,0) |
|
|
772 | #define ecb_decltype(x) __typeof(x) |
|
|
773 | #endif |
|
|
774 | |
|
|
775 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
776 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
777 | #define ecb_const ecb_attribute ((__const__)) |
|
|
778 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
779 | |
|
|
780 | #if ECB_C11 |
|
|
781 | #define ecb_noreturn _Noreturn |
|
|
782 | #else |
|
|
783 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
784 | #endif |
|
|
785 | |
|
|
786 | #if ECB_GCC_VERSION(4,3) |
|
|
787 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
788 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
789 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
790 | #else |
|
|
791 | #define ecb_artificial |
|
|
792 | #define ecb_hot |
|
|
793 | #define ecb_cold |
|
|
794 | #endif |
|
|
795 | |
|
|
796 | /* put around conditional expressions if you are very sure that the */ |
|
|
797 | /* expression is mostly true or mostly false. note that these return */ |
|
|
798 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
799 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
800 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
801 | /* for compatibility to the rest of the world */ |
|
|
802 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
803 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
804 | |
|
|
805 | /* count trailing zero bits and count # of one bits */ |
|
|
806 | #if ECB_GCC_VERSION(3,4) |
|
|
807 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
808 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
809 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
810 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
811 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
812 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
813 | /* no popcountll */ |
|
|
814 | #else |
|
|
815 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
816 | ecb_function_ int |
|
|
817 | ecb_ctz32 (uint32_t x) |
|
|
818 | { |
|
|
819 | int r = 0; |
|
|
820 | |
|
|
821 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
822 | |
|
|
823 | #if ECB_branchless_on_i386 |
|
|
824 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
825 | r += !!(x & 0xcccccccc) << 1; |
|
|
826 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
827 | r += !!(x & 0xff00ff00) << 3; |
|
|
828 | r += !!(x & 0xffff0000) << 4; |
|
|
829 | #else |
|
|
830 | if (x & 0xaaaaaaaa) r += 1; |
|
|
831 | if (x & 0xcccccccc) r += 2; |
|
|
832 | if (x & 0xf0f0f0f0) r += 4; |
|
|
833 | if (x & 0xff00ff00) r += 8; |
|
|
834 | if (x & 0xffff0000) r += 16; |
|
|
835 | #endif |
|
|
836 | |
|
|
837 | return r; |
|
|
838 | } |
|
|
839 | |
|
|
840 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
841 | ecb_function_ int |
|
|
842 | ecb_ctz64 (uint64_t x) |
|
|
843 | { |
|
|
844 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
845 | return ecb_ctz32 (x >> shift) + shift; |
|
|
846 | } |
|
|
847 | |
|
|
848 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
849 | ecb_function_ int |
|
|
850 | ecb_popcount32 (uint32_t x) |
|
|
851 | { |
|
|
852 | x -= (x >> 1) & 0x55555555; |
|
|
853 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
854 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
855 | x *= 0x01010101; |
|
|
856 | |
|
|
857 | return x >> 24; |
|
|
858 | } |
|
|
859 | |
|
|
860 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
861 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
862 | { |
|
|
863 | int r = 0; |
|
|
864 | |
|
|
865 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
866 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
867 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
868 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
869 | if (x >> 1) { r += 1; } |
|
|
870 | |
|
|
871 | return r; |
|
|
872 | } |
|
|
873 | |
|
|
874 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
875 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
876 | { |
|
|
877 | int r = 0; |
|
|
878 | |
|
|
879 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
880 | |
|
|
881 | return r + ecb_ld32 (x); |
|
|
882 | } |
|
|
883 | #endif |
|
|
884 | |
|
|
885 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
886 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
887 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
888 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
889 | |
|
|
890 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
891 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
892 | { |
|
|
893 | return ( (x * 0x0802U & 0x22110U) |
|
|
894 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
895 | } |
|
|
896 | |
|
|
897 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
898 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
899 | { |
|
|
900 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
901 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
902 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
903 | x = ( x >> 8 ) | ( x << 8); |
|
|
904 | |
|
|
905 | return x; |
|
|
906 | } |
|
|
907 | |
|
|
908 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
909 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
910 | { |
|
|
911 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
912 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
913 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
914 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
915 | x = ( x >> 16 ) | ( x << 16); |
|
|
916 | |
|
|
917 | return x; |
|
|
918 | } |
|
|
919 | |
|
|
920 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
921 | /* so for this version we are lazy */ |
|
|
922 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
923 | ecb_function_ int |
|
|
924 | ecb_popcount64 (uint64_t x) |
|
|
925 | { |
|
|
926 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
927 | } |
|
|
928 | |
|
|
929 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
930 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
931 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
932 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
933 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
934 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
935 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
936 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
937 | |
|
|
938 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
939 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
940 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
941 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
942 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
943 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
944 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
945 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
946 | |
|
|
947 | #if ECB_GCC_VERSION(4,3) |
|
|
948 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
949 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
950 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
951 | #else |
|
|
952 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
953 | ecb_function_ uint16_t |
|
|
954 | ecb_bswap16 (uint16_t x) |
|
|
955 | { |
|
|
956 | return ecb_rotl16 (x, 8); |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
960 | ecb_function_ uint32_t |
|
|
961 | ecb_bswap32 (uint32_t x) |
|
|
962 | { |
|
|
963 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
964 | } |
|
|
965 | |
|
|
966 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
967 | ecb_function_ uint64_t |
|
|
968 | ecb_bswap64 (uint64_t x) |
|
|
969 | { |
|
|
970 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
971 | } |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | #if ECB_GCC_VERSION(4,5) |
|
|
975 | #define ecb_unreachable() __builtin_unreachable () |
|
|
976 | #else |
|
|
977 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
978 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
979 | ecb_inline void ecb_unreachable (void) { } |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | /* try to tell the compiler that some condition is definitely true */ |
|
|
983 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
984 | |
|
|
985 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
986 | ecb_inline unsigned char |
|
|
987 | ecb_byteorder_helper (void) |
|
|
988 | { |
|
|
989 | /* the union code still generates code under pressure in gcc, */ |
|
|
990 | /* but less than using pointers, and always seems to */ |
|
|
991 | /* successfully return a constant. */ |
|
|
992 | /* the reason why we have this horrible preprocessor mess */ |
|
|
993 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
994 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
995 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
996 | return 0x44; |
|
|
997 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
998 | return 0x44; |
|
|
999 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1000 | return 0x11; |
|
|
1001 | #else |
|
|
1002 | union |
|
|
1003 | { |
|
|
1004 | uint32_t i; |
|
|
1005 | uint8_t c; |
|
|
1006 | } u = { 0x11223344 }; |
|
|
1007 | return u.c; |
|
|
1008 | #endif |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1012 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1013 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1014 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1015 | |
|
|
1016 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1017 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1018 | #else |
|
|
1019 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | #if __cplusplus |
|
|
1023 | template<typename T> |
|
|
1024 | static inline T ecb_div_rd (T val, T div) |
|
|
1025 | { |
|
|
1026 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1027 | } |
|
|
1028 | template<typename T> |
|
|
1029 | static inline T ecb_div_ru (T val, T div) |
|
|
1030 | { |
|
|
1031 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1032 | } |
|
|
1033 | #else |
|
|
1034 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1035 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1036 | #endif |
|
|
1037 | |
|
|
1038 | #if ecb_cplusplus_does_not_suck |
|
|
1039 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1040 | template<typename T, int N> |
|
|
1041 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1042 | { |
|
|
1043 | return N; |
|
|
1044 | } |
|
|
1045 | #else |
|
|
1046 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1047 | #endif |
|
|
1048 | |
|
|
1049 | /*******************************************************************************/ |
|
|
1050 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1051 | |
|
|
1052 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1053 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1054 | #if 0 \ |
|
|
1055 | || __i386 || __i386__ \ |
|
|
1056 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1057 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1058 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1059 | || defined __s390__ || defined __s390x__ \ |
|
|
1060 | || defined __mips__ \ |
|
|
1061 | || defined __alpha__ \ |
|
|
1062 | || defined __hppa__ \ |
|
|
1063 | || defined __ia64__ \ |
|
|
1064 | || defined __m68k__ \ |
|
|
1065 | || defined __m88k__ \ |
|
|
1066 | || defined __sh__ \ |
|
|
1067 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1068 | #define ECB_STDFP 1 |
|
|
1069 | #include <string.h> /* for memcpy */ |
|
|
1070 | #else |
|
|
1071 | #define ECB_STDFP 0 |
|
|
1072 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1073 | #endif |
|
|
1074 | |
|
|
1075 | #ifndef ECB_NO_LIBM |
|
|
1076 | |
|
|
1077 | /* convert a float to ieee single/binary32 */ |
|
|
1078 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1079 | ecb_function_ uint32_t |
|
|
1080 | ecb_float_to_binary32 (float x) |
|
|
1081 | { |
|
|
1082 | uint32_t r; |
|
|
1083 | |
|
|
1084 | #if ECB_STDFP |
|
|
1085 | memcpy (&r, &x, 4); |
|
|
1086 | #else |
|
|
1087 | /* slow emulation, works for anything but -0 */ |
|
|
1088 | uint32_t m; |
|
|
1089 | int e; |
|
|
1090 | |
|
|
1091 | if (x == 0e0f ) return 0x00000000U; |
|
|
1092 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1093 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1094 | if (x != x ) return 0x7fbfffffU; |
|
|
1095 | |
|
|
1096 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1097 | |
|
|
1098 | r = m & 0x80000000U; |
|
|
1099 | |
|
|
1100 | if (r) |
|
|
1101 | m = -m; |
|
|
1102 | |
|
|
1103 | if (e <= -126) |
|
|
1104 | { |
|
|
1105 | m &= 0xffffffU; |
|
|
1106 | m >>= (-125 - e); |
|
|
1107 | e = -126; |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | r |= (e + 126) << 23; |
|
|
1111 | r |= m & 0x7fffffU; |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | return r; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | /* converts an ieee single/binary32 to a float */ |
|
|
1118 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1119 | ecb_function_ float |
|
|
1120 | ecb_binary32_to_float (uint32_t x) |
|
|
1121 | { |
|
|
1122 | float r; |
|
|
1123 | |
|
|
1124 | #if ECB_STDFP |
|
|
1125 | memcpy (&r, &x, 4); |
|
|
1126 | #else |
|
|
1127 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1128 | int neg = x >> 31; |
|
|
1129 | int e = (x >> 23) & 0xffU; |
|
|
1130 | |
|
|
1131 | x &= 0x7fffffU; |
|
|
1132 | |
|
|
1133 | if (e) |
|
|
1134 | x |= 0x800000U; |
|
|
1135 | else |
|
|
1136 | e = 1; |
|
|
1137 | |
|
|
1138 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1139 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1140 | |
|
|
1141 | r = neg ? -r : r; |
|
|
1142 | #endif |
|
|
1143 | |
|
|
1144 | return r; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | /* convert a double to ieee double/binary64 */ |
|
|
1148 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1149 | ecb_function_ uint64_t |
|
|
1150 | ecb_double_to_binary64 (double x) |
|
|
1151 | { |
|
|
1152 | uint64_t r; |
|
|
1153 | |
|
|
1154 | #if ECB_STDFP |
|
|
1155 | memcpy (&r, &x, 8); |
|
|
1156 | #else |
|
|
1157 | /* slow emulation, works for anything but -0 */ |
|
|
1158 | uint64_t m; |
|
|
1159 | int e; |
|
|
1160 | |
|
|
1161 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1162 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1163 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1164 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1165 | |
|
|
1166 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1167 | |
|
|
1168 | r = m & 0x8000000000000000;; |
|
|
1169 | |
|
|
1170 | if (r) |
|
|
1171 | m = -m; |
|
|
1172 | |
|
|
1173 | if (e <= -1022) |
|
|
1174 | { |
|
|
1175 | m &= 0x1fffffffffffffU; |
|
|
1176 | m >>= (-1021 - e); |
|
|
1177 | e = -1022; |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1181 | r |= m & 0xfffffffffffffU; |
|
|
1182 | #endif |
|
|
1183 | |
|
|
1184 | return r; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | /* converts an ieee double/binary64 to a double */ |
|
|
1188 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1189 | ecb_function_ double |
|
|
1190 | ecb_binary64_to_double (uint64_t x) |
|
|
1191 | { |
|
|
1192 | double r; |
|
|
1193 | |
|
|
1194 | #if ECB_STDFP |
|
|
1195 | memcpy (&r, &x, 8); |
|
|
1196 | #else |
|
|
1197 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1198 | int neg = x >> 63; |
|
|
1199 | int e = (x >> 52) & 0x7ffU; |
|
|
1200 | |
|
|
1201 | x &= 0xfffffffffffffU; |
|
|
1202 | |
|
|
1203 | if (e) |
|
|
1204 | x |= 0x10000000000000U; |
|
|
1205 | else |
|
|
1206 | e = 1; |
|
|
1207 | |
|
|
1208 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1209 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1210 | |
|
|
1211 | r = neg ? -r : r; |
|
|
1212 | #endif |
|
|
1213 | |
|
|
1214 | return r; |
|
|
1215 | } |
|
|
1216 | |
|
|
1217 | #endif |
|
|
1218 | |
|
|
1219 | #endif |
|
|
1220 | |
|
|
1221 | /* ECB.H END */ |
|
|
1222 | |
|
|
1223 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1224 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1225 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1226 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1227 | * libev, in which cases the memory fences become nops. |
|
|
1228 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1229 | * which will then provide the memory fences. |
|
|
1230 | */ |
|
|
1231 | # error "memory fences not defined for your architecture, please report" |
|
|
1232 | #endif |
|
|
1233 | |
|
|
1234 | #ifndef ECB_MEMORY_FENCE |
|
|
1235 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1236 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1237 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1238 | #endif |
|
|
1239 | |
|
|
1240 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1241 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1242 | #define noinline ecb_noinline |
|
|
1243 | |
482 | #define inline_size static inline |
1244 | #define inline_size ecb_inline |
483 | |
1245 | |
484 | #if EV_FEATURE_CODE |
1246 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
1247 | # define inline_speed ecb_inline |
486 | #else |
1248 | #else |
487 | # define inline_speed static noinline |
1249 | # define inline_speed static noinline |
488 | #endif |
1250 | #endif |
489 | |
1251 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1252 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
581 | |
1343 | |
582 | #ifdef __linux |
1344 | #ifdef __linux |
583 | # include <sys/utsname.h> |
1345 | # include <sys/utsname.h> |
584 | #endif |
1346 | #endif |
585 | |
1347 | |
586 | static unsigned int noinline |
1348 | static unsigned int noinline ecb_cold |
587 | ev_linux_version (void) |
1349 | ev_linux_version (void) |
588 | { |
1350 | { |
589 | #ifdef __linux |
1351 | #ifdef __linux |
590 | unsigned int v = 0; |
1352 | unsigned int v = 0; |
591 | struct utsname buf; |
1353 | struct utsname buf; |
… | |
… | |
620 | } |
1382 | } |
621 | |
1383 | |
622 | /*****************************************************************************/ |
1384 | /*****************************************************************************/ |
623 | |
1385 | |
624 | #if EV_AVOID_STDIO |
1386 | #if EV_AVOID_STDIO |
625 | static void noinline |
1387 | static void noinline ecb_cold |
626 | ev_printerr (const char *msg) |
1388 | ev_printerr (const char *msg) |
627 | { |
1389 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1390 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1391 | } |
630 | #endif |
1392 | #endif |
631 | |
1393 | |
632 | static void (*syserr_cb)(const char *msg); |
1394 | static void (*syserr_cb)(const char *msg) EV_THROW; |
633 | |
1395 | |
634 | void |
1396 | void ecb_cold |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1397 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
636 | { |
1398 | { |
637 | syserr_cb = cb; |
1399 | syserr_cb = cb; |
638 | } |
1400 | } |
639 | |
1401 | |
640 | static void noinline |
1402 | static void noinline ecb_cold |
641 | ev_syserr (const char *msg) |
1403 | ev_syserr (const char *msg) |
642 | { |
1404 | { |
643 | if (!msg) |
1405 | if (!msg) |
644 | msg = "(libev) system error"; |
1406 | msg = "(libev) system error"; |
645 | |
1407 | |
… | |
… | |
658 | abort (); |
1420 | abort (); |
659 | } |
1421 | } |
660 | } |
1422 | } |
661 | |
1423 | |
662 | static void * |
1424 | static void * |
663 | ev_realloc_emul (void *ptr, long size) |
1425 | ev_realloc_emul (void *ptr, long size) EV_THROW |
664 | { |
1426 | { |
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
|
|
668 | /* some systems, notably openbsd and darwin, fail to properly |
1427 | /* some systems, notably openbsd and darwin, fail to properly |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1428 | * implement realloc (x, 0) (as required by both ansi c-89 and |
670 | * the single unix specification, so work around them here. |
1429 | * the single unix specification, so work around them here. |
|
|
1430 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1431 | * despite documenting it otherwise. |
671 | */ |
1432 | */ |
672 | |
1433 | |
673 | if (size) |
1434 | if (size) |
674 | return realloc (ptr, size); |
1435 | return realloc (ptr, size); |
675 | |
1436 | |
676 | free (ptr); |
1437 | free (ptr); |
677 | return 0; |
1438 | return 0; |
678 | #endif |
|
|
679 | } |
1439 | } |
680 | |
1440 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1441 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
682 | |
1442 | |
683 | void |
1443 | void ecb_cold |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1444 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
685 | { |
1445 | { |
686 | alloc = cb; |
1446 | alloc = cb; |
687 | } |
1447 | } |
688 | |
1448 | |
689 | inline_speed void * |
1449 | inline_speed void * |
… | |
… | |
777 | #undef VAR |
1537 | #undef VAR |
778 | }; |
1538 | }; |
779 | #include "ev_wrap.h" |
1539 | #include "ev_wrap.h" |
780 | |
1540 | |
781 | static struct ev_loop default_loop_struct; |
1541 | static struct ev_loop default_loop_struct; |
782 | struct ev_loop *ev_default_loop_ptr; |
1542 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
783 | |
1543 | |
784 | #else |
1544 | #else |
785 | |
1545 | |
786 | ev_tstamp ev_rt_now; |
1546 | 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; |
1547 | #define VAR(name,decl) static decl; |
788 | #include "ev_vars.h" |
1548 | #include "ev_vars.h" |
789 | #undef VAR |
1549 | #undef VAR |
790 | |
1550 | |
791 | static int ev_default_loop_ptr; |
1551 | static int ev_default_loop_ptr; |
… | |
… | |
806 | |
1566 | |
807 | /*****************************************************************************/ |
1567 | /*****************************************************************************/ |
808 | |
1568 | |
809 | #ifndef EV_HAVE_EV_TIME |
1569 | #ifndef EV_HAVE_EV_TIME |
810 | ev_tstamp |
1570 | ev_tstamp |
811 | ev_time (void) |
1571 | ev_time (void) EV_THROW |
812 | { |
1572 | { |
813 | #if EV_USE_REALTIME |
1573 | #if EV_USE_REALTIME |
814 | if (expect_true (have_realtime)) |
1574 | if (expect_true (have_realtime)) |
815 | { |
1575 | { |
816 | struct timespec ts; |
1576 | struct timespec ts; |
… | |
… | |
840 | return ev_time (); |
1600 | return ev_time (); |
841 | } |
1601 | } |
842 | |
1602 | |
843 | #if EV_MULTIPLICITY |
1603 | #if EV_MULTIPLICITY |
844 | ev_tstamp |
1604 | ev_tstamp |
845 | ev_now (EV_P) |
1605 | ev_now (EV_P) EV_THROW |
846 | { |
1606 | { |
847 | return ev_rt_now; |
1607 | return ev_rt_now; |
848 | } |
1608 | } |
849 | #endif |
1609 | #endif |
850 | |
1610 | |
851 | void |
1611 | void |
852 | ev_sleep (ev_tstamp delay) |
1612 | ev_sleep (ev_tstamp delay) EV_THROW |
853 | { |
1613 | { |
854 | if (delay > 0.) |
1614 | if (delay > 0.) |
855 | { |
1615 | { |
856 | #if EV_USE_NANOSLEEP |
1616 | #if EV_USE_NANOSLEEP |
857 | struct timespec ts; |
1617 | struct timespec ts; |
858 | |
1618 | |
859 | EV_TS_SET (ts, delay); |
1619 | EV_TS_SET (ts, delay); |
860 | nanosleep (&ts, 0); |
1620 | nanosleep (&ts, 0); |
861 | #elif defined(_WIN32) |
1621 | #elif defined _WIN32 |
862 | Sleep ((unsigned long)(delay * 1e3)); |
1622 | Sleep ((unsigned long)(delay * 1e3)); |
863 | #else |
1623 | #else |
864 | struct timeval tv; |
1624 | struct timeval tv; |
865 | |
1625 | |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1626 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
870 | select (0, 0, 0, 0, &tv); |
1630 | select (0, 0, 0, 0, &tv); |
871 | #endif |
1631 | #endif |
872 | } |
1632 | } |
873 | } |
1633 | } |
874 | |
1634 | |
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 | /*****************************************************************************/ |
1635 | /*****************************************************************************/ |
884 | |
1636 | |
885 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1637 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
886 | |
1638 | |
887 | /* find a suitable new size for the given array, */ |
1639 | /* find a suitable new size for the given array, */ |
… | |
… | |
893 | |
1645 | |
894 | do |
1646 | do |
895 | ncur <<= 1; |
1647 | ncur <<= 1; |
896 | while (cnt > ncur); |
1648 | while (cnt > ncur); |
897 | |
1649 | |
898 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1650 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
899 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1651 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
900 | { |
1652 | { |
901 | ncur *= elem; |
1653 | ncur *= elem; |
902 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1654 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
903 | ncur = ncur - sizeof (void *) * 4; |
1655 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
905 | } |
1657 | } |
906 | |
1658 | |
907 | return ncur; |
1659 | return ncur; |
908 | } |
1660 | } |
909 | |
1661 | |
910 | static noinline void * |
1662 | static void * noinline ecb_cold |
911 | array_realloc (int elem, void *base, int *cur, int cnt) |
1663 | array_realloc (int elem, void *base, int *cur, int cnt) |
912 | { |
1664 | { |
913 | *cur = array_nextsize (elem, *cur, cnt); |
1665 | *cur = array_nextsize (elem, *cur, cnt); |
914 | return ev_realloc (base, elem * *cur); |
1666 | return ev_realloc (base, elem * *cur); |
915 | } |
1667 | } |
… | |
… | |
918 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1670 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
919 | |
1671 | |
920 | #define array_needsize(type,base,cur,cnt,init) \ |
1672 | #define array_needsize(type,base,cur,cnt,init) \ |
921 | if (expect_false ((cnt) > (cur))) \ |
1673 | if (expect_false ((cnt) > (cur))) \ |
922 | { \ |
1674 | { \ |
923 | int ocur_ = (cur); \ |
1675 | int ecb_unused ocur_ = (cur); \ |
924 | (base) = (type *)array_realloc \ |
1676 | (base) = (type *)array_realloc \ |
925 | (sizeof (type), (base), &(cur), (cnt)); \ |
1677 | (sizeof (type), (base), &(cur), (cnt)); \ |
926 | init ((base) + (ocur_), (cur) - ocur_); \ |
1678 | init ((base) + (ocur_), (cur) - ocur_); \ |
927 | } |
1679 | } |
928 | |
1680 | |
… | |
… | |
946 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1698 | pendingcb (EV_P_ ev_prepare *w, int revents) |
947 | { |
1699 | { |
948 | } |
1700 | } |
949 | |
1701 | |
950 | void noinline |
1702 | void noinline |
951 | ev_feed_event (EV_P_ void *w, int revents) |
1703 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
952 | { |
1704 | { |
953 | W w_ = (W)w; |
1705 | W w_ = (W)w; |
954 | int pri = ABSPRI (w_); |
1706 | int pri = ABSPRI (w_); |
955 | |
1707 | |
956 | if (expect_false (w_->pending)) |
1708 | if (expect_false (w_->pending)) |
… | |
… | |
960 | w_->pending = ++pendingcnt [pri]; |
1712 | w_->pending = ++pendingcnt [pri]; |
961 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1713 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
962 | pendings [pri][w_->pending - 1].w = w_; |
1714 | pendings [pri][w_->pending - 1].w = w_; |
963 | pendings [pri][w_->pending - 1].events = revents; |
1715 | pendings [pri][w_->pending - 1].events = revents; |
964 | } |
1716 | } |
|
|
1717 | |
|
|
1718 | pendingpri = NUMPRI - 1; |
965 | } |
1719 | } |
966 | |
1720 | |
967 | inline_speed void |
1721 | inline_speed void |
968 | feed_reverse (EV_P_ W w) |
1722 | feed_reverse (EV_P_ W w) |
969 | { |
1723 | { |
… | |
… | |
1015 | if (expect_true (!anfd->reify)) |
1769 | if (expect_true (!anfd->reify)) |
1016 | fd_event_nocheck (EV_A_ fd, revents); |
1770 | fd_event_nocheck (EV_A_ fd, revents); |
1017 | } |
1771 | } |
1018 | |
1772 | |
1019 | void |
1773 | void |
1020 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1774 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1021 | { |
1775 | { |
1022 | if (fd >= 0 && fd < anfdmax) |
1776 | if (fd >= 0 && fd < anfdmax) |
1023 | fd_event_nocheck (EV_A_ fd, revents); |
1777 | fd_event_nocheck (EV_A_ fd, revents); |
1024 | } |
1778 | } |
1025 | |
1779 | |
… | |
… | |
1034 | for (i = 0; i < fdchangecnt; ++i) |
1788 | for (i = 0; i < fdchangecnt; ++i) |
1035 | { |
1789 | { |
1036 | int fd = fdchanges [i]; |
1790 | int fd = fdchanges [i]; |
1037 | ANFD *anfd = anfds + fd; |
1791 | ANFD *anfd = anfds + fd; |
1038 | |
1792 | |
1039 | if (anfd->reify & EV__IOFDSET) |
1793 | if (anfd->reify & EV__IOFDSET && anfd->head) |
1040 | { |
1794 | { |
1041 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
1795 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
1042 | |
1796 | |
1043 | if (handle != anfd->handle) |
1797 | if (handle != anfd->handle) |
1044 | { |
1798 | { |
… | |
… | |
1098 | fdchanges [fdchangecnt - 1] = fd; |
1852 | fdchanges [fdchangecnt - 1] = fd; |
1099 | } |
1853 | } |
1100 | } |
1854 | } |
1101 | |
1855 | |
1102 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1856 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1103 | inline_speed void |
1857 | inline_speed void ecb_cold |
1104 | fd_kill (EV_P_ int fd) |
1858 | fd_kill (EV_P_ int fd) |
1105 | { |
1859 | { |
1106 | ev_io *w; |
1860 | ev_io *w; |
1107 | |
1861 | |
1108 | while ((w = (ev_io *)anfds [fd].head)) |
1862 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1111 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1865 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1112 | } |
1866 | } |
1113 | } |
1867 | } |
1114 | |
1868 | |
1115 | /* check whether the given fd is actually valid, for error recovery */ |
1869 | /* check whether the given fd is actually valid, for error recovery */ |
1116 | inline_size int |
1870 | inline_size int ecb_cold |
1117 | fd_valid (int fd) |
1871 | fd_valid (int fd) |
1118 | { |
1872 | { |
1119 | #ifdef _WIN32 |
1873 | #ifdef _WIN32 |
1120 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1874 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1121 | #else |
1875 | #else |
1122 | return fcntl (fd, F_GETFD) != -1; |
1876 | return fcntl (fd, F_GETFD) != -1; |
1123 | #endif |
1877 | #endif |
1124 | } |
1878 | } |
1125 | |
1879 | |
1126 | /* called on EBADF to verify fds */ |
1880 | /* called on EBADF to verify fds */ |
1127 | static void noinline |
1881 | static void noinline ecb_cold |
1128 | fd_ebadf (EV_P) |
1882 | fd_ebadf (EV_P) |
1129 | { |
1883 | { |
1130 | int fd; |
1884 | int fd; |
1131 | |
1885 | |
1132 | for (fd = 0; fd < anfdmax; ++fd) |
1886 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1134 | if (!fd_valid (fd) && errno == EBADF) |
1888 | if (!fd_valid (fd) && errno == EBADF) |
1135 | fd_kill (EV_A_ fd); |
1889 | fd_kill (EV_A_ fd); |
1136 | } |
1890 | } |
1137 | |
1891 | |
1138 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1892 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1139 | static void noinline |
1893 | static void noinline ecb_cold |
1140 | fd_enomem (EV_P) |
1894 | fd_enomem (EV_P) |
1141 | { |
1895 | { |
1142 | int fd; |
1896 | int fd; |
1143 | |
1897 | |
1144 | for (fd = anfdmax; fd--; ) |
1898 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1339 | |
2093 | |
1340 | /*****************************************************************************/ |
2094 | /*****************************************************************************/ |
1341 | |
2095 | |
1342 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2096 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1343 | |
2097 | |
1344 | static void noinline |
2098 | static void noinline ecb_cold |
1345 | evpipe_init (EV_P) |
2099 | evpipe_init (EV_P) |
1346 | { |
2100 | { |
1347 | if (!ev_is_active (&pipe_w)) |
2101 | if (!ev_is_active (&pipe_w)) |
1348 | { |
2102 | { |
|
|
2103 | int fds [2]; |
|
|
2104 | |
1349 | # if EV_USE_EVENTFD |
2105 | # if EV_USE_EVENTFD |
|
|
2106 | fds [0] = -1; |
1350 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2107 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1351 | if (evfd < 0 && errno == EINVAL) |
2108 | if (fds [1] < 0 && errno == EINVAL) |
1352 | evfd = eventfd (0, 0); |
2109 | fds [1] = eventfd (0, 0); |
1353 | |
2110 | |
1354 | if (evfd >= 0) |
2111 | if (fds [1] < 0) |
|
|
2112 | # endif |
1355 | { |
2113 | { |
|
|
2114 | while (pipe (fds)) |
|
|
2115 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2116 | |
|
|
2117 | fd_intern (fds [0]); |
|
|
2118 | } |
|
|
2119 | |
1356 | evpipe [0] = -1; |
2120 | evpipe [0] = fds [0]; |
1357 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2121 | |
1358 | ev_io_set (&pipe_w, evfd, EV_READ); |
2122 | if (evpipe [1] < 0) |
|
|
2123 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2124 | else |
|
|
2125 | { |
|
|
2126 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2127 | /* so that evpipe_write can always rely on its value. */ |
|
|
2128 | /* this branch does not do anything sensible on windows, */ |
|
|
2129 | /* so must not be executed on windows */ |
|
|
2130 | |
|
|
2131 | dup2 (fds [1], evpipe [1]); |
|
|
2132 | close (fds [1]); |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | fd_intern (evpipe [1]); |
|
|
2136 | |
|
|
2137 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2138 | ev_io_start (EV_A_ &pipe_w); |
|
|
2139 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2140 | } |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | inline_speed void |
|
|
2144 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2145 | { |
|
|
2146 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2147 | |
|
|
2148 | if (expect_true (*flag)) |
|
|
2149 | return; |
|
|
2150 | |
|
|
2151 | *flag = 1; |
|
|
2152 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2153 | |
|
|
2154 | pipe_write_skipped = 1; |
|
|
2155 | |
|
|
2156 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2157 | |
|
|
2158 | if (pipe_write_wanted) |
|
|
2159 | { |
|
|
2160 | int old_errno; |
|
|
2161 | |
|
|
2162 | pipe_write_skipped = 0; |
|
|
2163 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2164 | |
|
|
2165 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2166 | |
|
|
2167 | #if EV_USE_EVENTFD |
|
|
2168 | if (evpipe [0] < 0) |
|
|
2169 | { |
|
|
2170 | uint64_t counter = 1; |
|
|
2171 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1359 | } |
2172 | } |
1360 | else |
2173 | else |
1361 | # endif |
2174 | #endif |
1362 | { |
2175 | { |
1363 | while (pipe (evpipe)) |
2176 | #ifdef _WIN32 |
1364 | ev_syserr ("(libev) error creating signal/async pipe"); |
2177 | WSABUF buf; |
1365 | |
2178 | DWORD sent; |
1366 | fd_intern (evpipe [0]); |
2179 | buf.buf = &buf; |
1367 | fd_intern (evpipe [1]); |
2180 | buf.len = 1; |
1368 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2181 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2182 | #else |
|
|
2183 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2184 | #endif |
1369 | } |
2185 | } |
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 | |
2186 | |
1401 | errno = old_errno; |
2187 | errno = old_errno; |
1402 | } |
2188 | } |
1403 | } |
2189 | } |
1404 | |
2190 | |
… | |
… | |
1407 | static void |
2193 | static void |
1408 | pipecb (EV_P_ ev_io *iow, int revents) |
2194 | pipecb (EV_P_ ev_io *iow, int revents) |
1409 | { |
2195 | { |
1410 | int i; |
2196 | int i; |
1411 | |
2197 | |
|
|
2198 | if (revents & EV_READ) |
|
|
2199 | { |
1412 | #if EV_USE_EVENTFD |
2200 | #if EV_USE_EVENTFD |
1413 | if (evfd >= 0) |
2201 | if (evpipe [0] < 0) |
1414 | { |
2202 | { |
1415 | uint64_t counter; |
2203 | uint64_t counter; |
1416 | read (evfd, &counter, sizeof (uint64_t)); |
2204 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1417 | } |
2205 | } |
1418 | else |
2206 | else |
1419 | #endif |
2207 | #endif |
1420 | { |
2208 | { |
1421 | char dummy; |
2209 | char dummy[4]; |
1422 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2210 | #ifdef _WIN32 |
|
|
2211 | WSABUF buf; |
|
|
2212 | DWORD recvd; |
|
|
2213 | DWORD flags = 0; |
|
|
2214 | buf.buf = dummy; |
|
|
2215 | buf.len = sizeof (dummy); |
|
|
2216 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2217 | #else |
1423 | read (evpipe [0], &dummy, 1); |
2218 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2219 | #endif |
|
|
2220 | } |
1424 | } |
2221 | } |
|
|
2222 | |
|
|
2223 | pipe_write_skipped = 0; |
|
|
2224 | |
|
|
2225 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1425 | |
2226 | |
1426 | #if EV_SIGNAL_ENABLE |
2227 | #if EV_SIGNAL_ENABLE |
1427 | if (sig_pending) |
2228 | if (sig_pending) |
1428 | { |
2229 | { |
1429 | sig_pending = 0; |
2230 | sig_pending = 0; |
|
|
2231 | |
|
|
2232 | ECB_MEMORY_FENCE; |
1430 | |
2233 | |
1431 | for (i = EV_NSIG - 1; i--; ) |
2234 | for (i = EV_NSIG - 1; i--; ) |
1432 | if (expect_false (signals [i].pending)) |
2235 | if (expect_false (signals [i].pending)) |
1433 | ev_feed_signal_event (EV_A_ i + 1); |
2236 | ev_feed_signal_event (EV_A_ i + 1); |
1434 | } |
2237 | } |
… | |
… | |
1436 | |
2239 | |
1437 | #if EV_ASYNC_ENABLE |
2240 | #if EV_ASYNC_ENABLE |
1438 | if (async_pending) |
2241 | if (async_pending) |
1439 | { |
2242 | { |
1440 | async_pending = 0; |
2243 | async_pending = 0; |
|
|
2244 | |
|
|
2245 | ECB_MEMORY_FENCE; |
1441 | |
2246 | |
1442 | for (i = asynccnt; i--; ) |
2247 | for (i = asynccnt; i--; ) |
1443 | if (asyncs [i]->sent) |
2248 | if (asyncs [i]->sent) |
1444 | { |
2249 | { |
1445 | asyncs [i]->sent = 0; |
2250 | asyncs [i]->sent = 0; |
|
|
2251 | ECB_MEMORY_FENCE_RELEASE; |
1446 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2252 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1447 | } |
2253 | } |
1448 | } |
2254 | } |
1449 | #endif |
2255 | #endif |
1450 | } |
2256 | } |
1451 | |
2257 | |
1452 | /*****************************************************************************/ |
2258 | /*****************************************************************************/ |
1453 | |
2259 | |
1454 | void |
2260 | void |
1455 | ev_feed_signal (int signum) |
2261 | ev_feed_signal (int signum) EV_THROW |
1456 | { |
2262 | { |
1457 | #if EV_MULTIPLICITY |
2263 | #if EV_MULTIPLICITY |
|
|
2264 | EV_P; |
|
|
2265 | ECB_MEMORY_FENCE_ACQUIRE; |
1458 | EV_P = signals [signum - 1].loop; |
2266 | EV_A = signals [signum - 1].loop; |
1459 | |
2267 | |
1460 | if (!EV_A) |
2268 | if (!EV_A) |
1461 | return; |
2269 | return; |
1462 | #endif |
2270 | #endif |
1463 | |
2271 | |
… | |
… | |
1474 | |
2282 | |
1475 | ev_feed_signal (signum); |
2283 | ev_feed_signal (signum); |
1476 | } |
2284 | } |
1477 | |
2285 | |
1478 | void noinline |
2286 | void noinline |
1479 | ev_feed_signal_event (EV_P_ int signum) |
2287 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1480 | { |
2288 | { |
1481 | WL w; |
2289 | WL w; |
1482 | |
2290 | |
1483 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2291 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1484 | return; |
2292 | return; |
1485 | |
2293 | |
1486 | --signum; |
2294 | --signum; |
1487 | |
2295 | |
1488 | #if EV_MULTIPLICITY |
2296 | #if EV_MULTIPLICITY |
… | |
… | |
1492 | if (expect_false (signals [signum].loop != EV_A)) |
2300 | if (expect_false (signals [signum].loop != EV_A)) |
1493 | return; |
2301 | return; |
1494 | #endif |
2302 | #endif |
1495 | |
2303 | |
1496 | signals [signum].pending = 0; |
2304 | signals [signum].pending = 0; |
|
|
2305 | ECB_MEMORY_FENCE_RELEASE; |
1497 | |
2306 | |
1498 | for (w = signals [signum].head; w; w = w->next) |
2307 | for (w = signals [signum].head; w; w = w->next) |
1499 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2308 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1500 | } |
2309 | } |
1501 | |
2310 | |
… | |
… | |
1599 | #endif |
2408 | #endif |
1600 | #if EV_USE_SELECT |
2409 | #if EV_USE_SELECT |
1601 | # include "ev_select.c" |
2410 | # include "ev_select.c" |
1602 | #endif |
2411 | #endif |
1603 | |
2412 | |
1604 | int |
2413 | int ecb_cold |
1605 | ev_version_major (void) |
2414 | ev_version_major (void) EV_THROW |
1606 | { |
2415 | { |
1607 | return EV_VERSION_MAJOR; |
2416 | return EV_VERSION_MAJOR; |
1608 | } |
2417 | } |
1609 | |
2418 | |
1610 | int |
2419 | int ecb_cold |
1611 | ev_version_minor (void) |
2420 | ev_version_minor (void) EV_THROW |
1612 | { |
2421 | { |
1613 | return EV_VERSION_MINOR; |
2422 | return EV_VERSION_MINOR; |
1614 | } |
2423 | } |
1615 | |
2424 | |
1616 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2425 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1617 | int inline_size |
2426 | int inline_size ecb_cold |
1618 | enable_secure (void) |
2427 | enable_secure (void) |
1619 | { |
2428 | { |
1620 | #ifdef _WIN32 |
2429 | #ifdef _WIN32 |
1621 | return 0; |
2430 | return 0; |
1622 | #else |
2431 | #else |
1623 | return getuid () != geteuid () |
2432 | return getuid () != geteuid () |
1624 | || getgid () != getegid (); |
2433 | || getgid () != getegid (); |
1625 | #endif |
2434 | #endif |
1626 | } |
2435 | } |
1627 | |
2436 | |
1628 | unsigned int |
2437 | unsigned int ecb_cold |
1629 | ev_supported_backends (void) |
2438 | ev_supported_backends (void) EV_THROW |
1630 | { |
2439 | { |
1631 | unsigned int flags = 0; |
2440 | unsigned int flags = 0; |
1632 | |
2441 | |
1633 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2442 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1634 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2443 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1637 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2446 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1638 | |
2447 | |
1639 | return flags; |
2448 | return flags; |
1640 | } |
2449 | } |
1641 | |
2450 | |
1642 | unsigned int |
2451 | unsigned int ecb_cold |
1643 | ev_recommended_backends (void) |
2452 | ev_recommended_backends (void) EV_THROW |
1644 | { |
2453 | { |
1645 | unsigned int flags = ev_supported_backends (); |
2454 | unsigned int flags = ev_supported_backends (); |
1646 | |
2455 | |
1647 | #ifndef __NetBSD__ |
2456 | #ifndef __NetBSD__ |
1648 | /* kqueue is borked on everything but netbsd apparently */ |
2457 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1659 | #endif |
2468 | #endif |
1660 | |
2469 | |
1661 | return flags; |
2470 | return flags; |
1662 | } |
2471 | } |
1663 | |
2472 | |
1664 | unsigned int |
2473 | unsigned int ecb_cold |
1665 | ev_embeddable_backends (void) |
2474 | ev_embeddable_backends (void) EV_THROW |
1666 | { |
2475 | { |
1667 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2476 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1668 | |
2477 | |
1669 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2478 | /* 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 */ |
2479 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1672 | |
2481 | |
1673 | return flags; |
2482 | return flags; |
1674 | } |
2483 | } |
1675 | |
2484 | |
1676 | unsigned int |
2485 | unsigned int |
1677 | ev_backend (EV_P) |
2486 | ev_backend (EV_P) EV_THROW |
1678 | { |
2487 | { |
1679 | return backend; |
2488 | return backend; |
1680 | } |
2489 | } |
1681 | |
2490 | |
1682 | #if EV_FEATURE_API |
2491 | #if EV_FEATURE_API |
1683 | unsigned int |
2492 | unsigned int |
1684 | ev_iteration (EV_P) |
2493 | ev_iteration (EV_P) EV_THROW |
1685 | { |
2494 | { |
1686 | return loop_count; |
2495 | return loop_count; |
1687 | } |
2496 | } |
1688 | |
2497 | |
1689 | unsigned int |
2498 | unsigned int |
1690 | ev_depth (EV_P) |
2499 | ev_depth (EV_P) EV_THROW |
1691 | { |
2500 | { |
1692 | return loop_depth; |
2501 | return loop_depth; |
1693 | } |
2502 | } |
1694 | |
2503 | |
1695 | void |
2504 | void |
1696 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2505 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1697 | { |
2506 | { |
1698 | io_blocktime = interval; |
2507 | io_blocktime = interval; |
1699 | } |
2508 | } |
1700 | |
2509 | |
1701 | void |
2510 | void |
1702 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2511 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1703 | { |
2512 | { |
1704 | timeout_blocktime = interval; |
2513 | timeout_blocktime = interval; |
1705 | } |
2514 | } |
1706 | |
2515 | |
1707 | void |
2516 | void |
1708 | ev_set_userdata (EV_P_ void *data) |
2517 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1709 | { |
2518 | { |
1710 | userdata = data; |
2519 | userdata = data; |
1711 | } |
2520 | } |
1712 | |
2521 | |
1713 | void * |
2522 | void * |
1714 | ev_userdata (EV_P) |
2523 | ev_userdata (EV_P) EV_THROW |
1715 | { |
2524 | { |
1716 | return userdata; |
2525 | return userdata; |
1717 | } |
2526 | } |
1718 | |
2527 | |
|
|
2528 | void |
1719 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2529 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1720 | { |
2530 | { |
1721 | invoke_cb = invoke_pending_cb; |
2531 | invoke_cb = invoke_pending_cb; |
1722 | } |
2532 | } |
1723 | |
2533 | |
|
|
2534 | void |
1724 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2535 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1725 | { |
2536 | { |
1726 | release_cb = release; |
2537 | release_cb = release; |
1727 | acquire_cb = acquire; |
2538 | acquire_cb = acquire; |
1728 | } |
2539 | } |
1729 | #endif |
2540 | #endif |
1730 | |
2541 | |
1731 | /* initialise a loop structure, must be zero-initialised */ |
2542 | /* initialise a loop structure, must be zero-initialised */ |
1732 | static void noinline |
2543 | static void noinline ecb_cold |
1733 | loop_init (EV_P_ unsigned int flags) |
2544 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1734 | { |
2545 | { |
1735 | if (!backend) |
2546 | if (!backend) |
1736 | { |
2547 | { |
1737 | origflags = flags; |
2548 | origflags = flags; |
1738 | |
2549 | |
… | |
… | |
1765 | if (!(flags & EVFLAG_NOENV) |
2576 | if (!(flags & EVFLAG_NOENV) |
1766 | && !enable_secure () |
2577 | && !enable_secure () |
1767 | && getenv ("LIBEV_FLAGS")) |
2578 | && getenv ("LIBEV_FLAGS")) |
1768 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2579 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1769 | |
2580 | |
1770 | ev_rt_now = ev_time (); |
2581 | ev_rt_now = ev_time (); |
1771 | mn_now = get_clock (); |
2582 | mn_now = get_clock (); |
1772 | now_floor = mn_now; |
2583 | now_floor = mn_now; |
1773 | rtmn_diff = ev_rt_now - mn_now; |
2584 | rtmn_diff = ev_rt_now - mn_now; |
1774 | #if EV_FEATURE_API |
2585 | #if EV_FEATURE_API |
1775 | invoke_cb = ev_invoke_pending; |
2586 | invoke_cb = ev_invoke_pending; |
1776 | #endif |
2587 | #endif |
1777 | |
2588 | |
1778 | io_blocktime = 0.; |
2589 | io_blocktime = 0.; |
1779 | timeout_blocktime = 0.; |
2590 | timeout_blocktime = 0.; |
1780 | backend = 0; |
2591 | backend = 0; |
1781 | backend_fd = -1; |
2592 | backend_fd = -1; |
1782 | sig_pending = 0; |
2593 | sig_pending = 0; |
1783 | #if EV_ASYNC_ENABLE |
2594 | #if EV_ASYNC_ENABLE |
1784 | async_pending = 0; |
2595 | async_pending = 0; |
1785 | #endif |
2596 | #endif |
|
|
2597 | pipe_write_skipped = 0; |
|
|
2598 | pipe_write_wanted = 0; |
|
|
2599 | evpipe [0] = -1; |
|
|
2600 | evpipe [1] = -1; |
1786 | #if EV_USE_INOTIFY |
2601 | #if EV_USE_INOTIFY |
1787 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2602 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1788 | #endif |
2603 | #endif |
1789 | #if EV_USE_SIGNALFD |
2604 | #if EV_USE_SIGNALFD |
1790 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2605 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1791 | #endif |
2606 | #endif |
1792 | |
2607 | |
1793 | if (!(flags & EVBACKEND_MASK)) |
2608 | if (!(flags & EVBACKEND_MASK)) |
1794 | flags |= ev_recommended_backends (); |
2609 | flags |= ev_recommended_backends (); |
1795 | |
2610 | |
… | |
… | |
1820 | #endif |
2635 | #endif |
1821 | } |
2636 | } |
1822 | } |
2637 | } |
1823 | |
2638 | |
1824 | /* free up a loop structure */ |
2639 | /* free up a loop structure */ |
1825 | void |
2640 | void ecb_cold |
1826 | ev_loop_destroy (EV_P) |
2641 | ev_loop_destroy (EV_P) |
1827 | { |
2642 | { |
1828 | int i; |
2643 | int i; |
1829 | |
2644 | |
1830 | #if EV_MULTIPLICITY |
2645 | #if EV_MULTIPLICITY |
… | |
… | |
1841 | EV_INVOKE_PENDING; |
2656 | EV_INVOKE_PENDING; |
1842 | } |
2657 | } |
1843 | #endif |
2658 | #endif |
1844 | |
2659 | |
1845 | #if EV_CHILD_ENABLE |
2660 | #if EV_CHILD_ENABLE |
1846 | if (ev_is_active (&childev)) |
2661 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1847 | { |
2662 | { |
1848 | ev_ref (EV_A); /* child watcher */ |
2663 | ev_ref (EV_A); /* child watcher */ |
1849 | ev_signal_stop (EV_A_ &childev); |
2664 | ev_signal_stop (EV_A_ &childev); |
1850 | } |
2665 | } |
1851 | #endif |
2666 | #endif |
… | |
… | |
1853 | if (ev_is_active (&pipe_w)) |
2668 | if (ev_is_active (&pipe_w)) |
1854 | { |
2669 | { |
1855 | /*ev_ref (EV_A);*/ |
2670 | /*ev_ref (EV_A);*/ |
1856 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2671 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1857 | |
2672 | |
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]); |
2673 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1866 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2674 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1867 | } |
|
|
1868 | } |
2675 | } |
1869 | |
2676 | |
1870 | #if EV_USE_SIGNALFD |
2677 | #if EV_USE_SIGNALFD |
1871 | if (ev_is_active (&sigfd_w)) |
2678 | if (ev_is_active (&sigfd_w)) |
1872 | close (sigfd); |
2679 | close (sigfd); |
… | |
… | |
1958 | #endif |
2765 | #endif |
1959 | #if EV_USE_INOTIFY |
2766 | #if EV_USE_INOTIFY |
1960 | infy_fork (EV_A); |
2767 | infy_fork (EV_A); |
1961 | #endif |
2768 | #endif |
1962 | |
2769 | |
|
|
2770 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1963 | if (ev_is_active (&pipe_w)) |
2771 | if (ev_is_active (&pipe_w)) |
1964 | { |
2772 | { |
1965 | /* this "locks" the handlers against writing to the pipe */ |
2773 | /* 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 | |
2774 | |
1972 | ev_ref (EV_A); |
2775 | ev_ref (EV_A); |
1973 | ev_io_stop (EV_A_ &pipe_w); |
2776 | ev_io_stop (EV_A_ &pipe_w); |
1974 | |
2777 | |
1975 | #if EV_USE_EVENTFD |
|
|
1976 | if (evfd >= 0) |
|
|
1977 | close (evfd); |
|
|
1978 | #endif |
|
|
1979 | |
|
|
1980 | if (evpipe [0] >= 0) |
2778 | if (evpipe [0] >= 0) |
1981 | { |
|
|
1982 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2779 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1983 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1984 | } |
|
|
1985 | |
2780 | |
1986 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1987 | evpipe_init (EV_A); |
2781 | evpipe_init (EV_A); |
1988 | /* now iterate over everything, in case we missed something */ |
2782 | /* iterate over everything, in case we missed something before */ |
1989 | pipecb (EV_A_ &pipe_w, EV_READ); |
2783 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1990 | #endif |
|
|
1991 | } |
2784 | } |
|
|
2785 | #endif |
1992 | |
2786 | |
1993 | postfork = 0; |
2787 | postfork = 0; |
1994 | } |
2788 | } |
1995 | |
2789 | |
1996 | #if EV_MULTIPLICITY |
2790 | #if EV_MULTIPLICITY |
1997 | |
2791 | |
1998 | struct ev_loop * |
2792 | struct ev_loop * ecb_cold |
1999 | ev_loop_new (unsigned int flags) |
2793 | ev_loop_new (unsigned int flags) EV_THROW |
2000 | { |
2794 | { |
2001 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2795 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2002 | |
2796 | |
2003 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2797 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2004 | loop_init (EV_A_ flags); |
2798 | loop_init (EV_A_ flags); |
… | |
… | |
2011 | } |
2805 | } |
2012 | |
2806 | |
2013 | #endif /* multiplicity */ |
2807 | #endif /* multiplicity */ |
2014 | |
2808 | |
2015 | #if EV_VERIFY |
2809 | #if EV_VERIFY |
2016 | static void noinline |
2810 | static void noinline ecb_cold |
2017 | verify_watcher (EV_P_ W w) |
2811 | verify_watcher (EV_P_ W w) |
2018 | { |
2812 | { |
2019 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2813 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2020 | |
2814 | |
2021 | if (w->pending) |
2815 | if (w->pending) |
2022 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2816 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2023 | } |
2817 | } |
2024 | |
2818 | |
2025 | static void noinline |
2819 | static void noinline ecb_cold |
2026 | verify_heap (EV_P_ ANHE *heap, int N) |
2820 | verify_heap (EV_P_ ANHE *heap, int N) |
2027 | { |
2821 | { |
2028 | int i; |
2822 | int i; |
2029 | |
2823 | |
2030 | for (i = HEAP0; i < N + HEAP0; ++i) |
2824 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2035 | |
2829 | |
2036 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2830 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2037 | } |
2831 | } |
2038 | } |
2832 | } |
2039 | |
2833 | |
2040 | static void noinline |
2834 | static void noinline ecb_cold |
2041 | array_verify (EV_P_ W *ws, int cnt) |
2835 | array_verify (EV_P_ W *ws, int cnt) |
2042 | { |
2836 | { |
2043 | while (cnt--) |
2837 | while (cnt--) |
2044 | { |
2838 | { |
2045 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2839 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2047 | } |
2841 | } |
2048 | } |
2842 | } |
2049 | #endif |
2843 | #endif |
2050 | |
2844 | |
2051 | #if EV_FEATURE_API |
2845 | #if EV_FEATURE_API |
2052 | void |
2846 | void ecb_cold |
2053 | ev_verify (EV_P) |
2847 | ev_verify (EV_P) EV_THROW |
2054 | { |
2848 | { |
2055 | #if EV_VERIFY |
2849 | #if EV_VERIFY |
2056 | int i; |
2850 | int i; |
2057 | WL w; |
2851 | WL w, w2; |
2058 | |
2852 | |
2059 | assert (activecnt >= -1); |
2853 | assert (activecnt >= -1); |
2060 | |
2854 | |
2061 | assert (fdchangemax >= fdchangecnt); |
2855 | assert (fdchangemax >= fdchangecnt); |
2062 | for (i = 0; i < fdchangecnt; ++i) |
2856 | for (i = 0; i < fdchangecnt; ++i) |
2063 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2857 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2064 | |
2858 | |
2065 | assert (anfdmax >= 0); |
2859 | assert (anfdmax >= 0); |
2066 | for (i = 0; i < anfdmax; ++i) |
2860 | for (i = 0; i < anfdmax; ++i) |
|
|
2861 | { |
|
|
2862 | int j = 0; |
|
|
2863 | |
2067 | for (w = anfds [i].head; w; w = w->next) |
2864 | for (w = w2 = anfds [i].head; w; w = w->next) |
2068 | { |
2865 | { |
2069 | verify_watcher (EV_A_ (W)w); |
2866 | verify_watcher (EV_A_ (W)w); |
|
|
2867 | |
|
|
2868 | if (j++ & 1) |
|
|
2869 | { |
|
|
2870 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2871 | w2 = w2->next; |
|
|
2872 | } |
|
|
2873 | |
2070 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2874 | 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)); |
2875 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2072 | } |
2876 | } |
|
|
2877 | } |
2073 | |
2878 | |
2074 | assert (timermax >= timercnt); |
2879 | assert (timermax >= timercnt); |
2075 | verify_heap (EV_A_ timers, timercnt); |
2880 | verify_heap (EV_A_ timers, timercnt); |
2076 | |
2881 | |
2077 | #if EV_PERIODIC_ENABLE |
2882 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2123 | #endif |
2928 | #endif |
2124 | } |
2929 | } |
2125 | #endif |
2930 | #endif |
2126 | |
2931 | |
2127 | #if EV_MULTIPLICITY |
2932 | #if EV_MULTIPLICITY |
2128 | struct ev_loop * |
2933 | struct ev_loop * ecb_cold |
2129 | #else |
2934 | #else |
2130 | int |
2935 | int |
2131 | #endif |
2936 | #endif |
2132 | ev_default_loop (unsigned int flags) |
2937 | ev_default_loop (unsigned int flags) EV_THROW |
2133 | { |
2938 | { |
2134 | if (!ev_default_loop_ptr) |
2939 | if (!ev_default_loop_ptr) |
2135 | { |
2940 | { |
2136 | #if EV_MULTIPLICITY |
2941 | #if EV_MULTIPLICITY |
2137 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2942 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2156 | |
2961 | |
2157 | return ev_default_loop_ptr; |
2962 | return ev_default_loop_ptr; |
2158 | } |
2963 | } |
2159 | |
2964 | |
2160 | void |
2965 | void |
2161 | ev_loop_fork (EV_P) |
2966 | ev_loop_fork (EV_P) EV_THROW |
2162 | { |
2967 | { |
2163 | postfork = 1; /* must be in line with ev_default_fork */ |
2968 | postfork = 1; |
2164 | } |
2969 | } |
2165 | |
2970 | |
2166 | /*****************************************************************************/ |
2971 | /*****************************************************************************/ |
2167 | |
2972 | |
2168 | void |
2973 | void |
… | |
… | |
2170 | { |
2975 | { |
2171 | EV_CB_INVOKE ((W)w, revents); |
2976 | EV_CB_INVOKE ((W)w, revents); |
2172 | } |
2977 | } |
2173 | |
2978 | |
2174 | unsigned int |
2979 | unsigned int |
2175 | ev_pending_count (EV_P) |
2980 | ev_pending_count (EV_P) EV_THROW |
2176 | { |
2981 | { |
2177 | int pri; |
2982 | int pri; |
2178 | unsigned int count = 0; |
2983 | unsigned int count = 0; |
2179 | |
2984 | |
2180 | for (pri = NUMPRI; pri--; ) |
2985 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2184 | } |
2989 | } |
2185 | |
2990 | |
2186 | void noinline |
2991 | void noinline |
2187 | ev_invoke_pending (EV_P) |
2992 | ev_invoke_pending (EV_P) |
2188 | { |
2993 | { |
2189 | int pri; |
2994 | pendingpri = NUMPRI; |
2190 | |
2995 | |
2191 | for (pri = NUMPRI; pri--; ) |
2996 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2997 | { |
|
|
2998 | --pendingpri; |
|
|
2999 | |
2192 | while (pendingcnt [pri]) |
3000 | while (pendingcnt [pendingpri]) |
2193 | { |
3001 | { |
2194 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3002 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2195 | |
3003 | |
2196 | p->w->pending = 0; |
3004 | p->w->pending = 0; |
2197 | EV_CB_INVOKE (p->w, p->events); |
3005 | EV_CB_INVOKE (p->w, p->events); |
2198 | EV_FREQUENT_CHECK; |
3006 | EV_FREQUENT_CHECK; |
2199 | } |
3007 | } |
|
|
3008 | } |
2200 | } |
3009 | } |
2201 | |
3010 | |
2202 | #if EV_IDLE_ENABLE |
3011 | #if EV_IDLE_ENABLE |
2203 | /* make idle watchers pending. this handles the "call-idle */ |
3012 | /* make idle watchers pending. this handles the "call-idle */ |
2204 | /* only when higher priorities are idle" logic */ |
3013 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2294 | { |
3103 | { |
2295 | EV_FREQUENT_CHECK; |
3104 | EV_FREQUENT_CHECK; |
2296 | |
3105 | |
2297 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3106 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2298 | { |
3107 | { |
2299 | int feed_count = 0; |
|
|
2300 | |
|
|
2301 | do |
3108 | do |
2302 | { |
3109 | { |
2303 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3110 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2304 | |
3111 | |
2305 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3112 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2332 | } |
3139 | } |
2333 | } |
3140 | } |
2334 | |
3141 | |
2335 | /* simply recalculate all periodics */ |
3142 | /* simply recalculate all periodics */ |
2336 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3143 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2337 | static void noinline |
3144 | static void noinline ecb_cold |
2338 | periodics_reschedule (EV_P) |
3145 | periodics_reschedule (EV_P) |
2339 | { |
3146 | { |
2340 | int i; |
3147 | int i; |
2341 | |
3148 | |
2342 | /* adjust periodics after time jump */ |
3149 | /* adjust periodics after time jump */ |
… | |
… | |
2355 | reheap (periodics, periodiccnt); |
3162 | reheap (periodics, periodiccnt); |
2356 | } |
3163 | } |
2357 | #endif |
3164 | #endif |
2358 | |
3165 | |
2359 | /* adjust all timers by a given offset */ |
3166 | /* adjust all timers by a given offset */ |
2360 | static void noinline |
3167 | static void noinline ecb_cold |
2361 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3168 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2362 | { |
3169 | { |
2363 | int i; |
3170 | int i; |
2364 | |
3171 | |
2365 | for (i = 0; i < timercnt; ++i) |
3172 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2439 | |
3246 | |
2440 | mn_now = ev_rt_now; |
3247 | mn_now = ev_rt_now; |
2441 | } |
3248 | } |
2442 | } |
3249 | } |
2443 | |
3250 | |
2444 | void |
3251 | int |
2445 | ev_run (EV_P_ int flags) |
3252 | ev_run (EV_P_ int flags) |
2446 | { |
3253 | { |
2447 | #if EV_FEATURE_API |
3254 | #if EV_FEATURE_API |
2448 | ++loop_depth; |
3255 | ++loop_depth; |
2449 | #endif |
3256 | #endif |
… | |
… | |
2507 | ev_tstamp prev_mn_now = mn_now; |
3314 | ev_tstamp prev_mn_now = mn_now; |
2508 | |
3315 | |
2509 | /* update time to cancel out callback processing overhead */ |
3316 | /* update time to cancel out callback processing overhead */ |
2510 | time_update (EV_A_ 1e100); |
3317 | time_update (EV_A_ 1e100); |
2511 | |
3318 | |
|
|
3319 | /* from now on, we want a pipe-wake-up */ |
|
|
3320 | pipe_write_wanted = 1; |
|
|
3321 | |
|
|
3322 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3323 | |
2512 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3324 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2513 | { |
3325 | { |
2514 | waittime = MAX_BLOCKTIME; |
3326 | waittime = MAX_BLOCKTIME; |
2515 | |
3327 | |
2516 | if (timercnt) |
3328 | if (timercnt) |
2517 | { |
3329 | { |
2518 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3330 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2519 | if (waittime > to) waittime = to; |
3331 | if (waittime > to) waittime = to; |
2520 | } |
3332 | } |
2521 | |
3333 | |
2522 | #if EV_PERIODIC_ENABLE |
3334 | #if EV_PERIODIC_ENABLE |
2523 | if (periodiccnt) |
3335 | if (periodiccnt) |
2524 | { |
3336 | { |
2525 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3337 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2526 | if (waittime > to) waittime = to; |
3338 | if (waittime > to) waittime = to; |
2527 | } |
3339 | } |
2528 | #endif |
3340 | #endif |
2529 | |
3341 | |
2530 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3342 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2531 | if (expect_false (waittime < timeout_blocktime)) |
3343 | if (expect_false (waittime < timeout_blocktime)) |
2532 | waittime = timeout_blocktime; |
3344 | waittime = timeout_blocktime; |
|
|
3345 | |
|
|
3346 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3347 | /* to pass a minimum nonzero value to the backend */ |
|
|
3348 | if (expect_false (waittime < backend_mintime)) |
|
|
3349 | waittime = backend_mintime; |
2533 | |
3350 | |
2534 | /* extra check because io_blocktime is commonly 0 */ |
3351 | /* extra check because io_blocktime is commonly 0 */ |
2535 | if (expect_false (io_blocktime)) |
3352 | if (expect_false (io_blocktime)) |
2536 | { |
3353 | { |
2537 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3354 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2538 | |
3355 | |
2539 | if (sleeptime > waittime - backend_fudge) |
3356 | if (sleeptime > waittime - backend_mintime) |
2540 | sleeptime = waittime - backend_fudge; |
3357 | sleeptime = waittime - backend_mintime; |
2541 | |
3358 | |
2542 | if (expect_true (sleeptime > 0.)) |
3359 | if (expect_true (sleeptime > 0.)) |
2543 | { |
3360 | { |
2544 | ev_sleep (sleeptime); |
3361 | ev_sleep (sleeptime); |
2545 | waittime -= sleeptime; |
3362 | waittime -= sleeptime; |
… | |
… | |
2552 | #endif |
3369 | #endif |
2553 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3370 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2554 | backend_poll (EV_A_ waittime); |
3371 | backend_poll (EV_A_ waittime); |
2555 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3372 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2556 | |
3373 | |
|
|
3374 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3375 | |
|
|
3376 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3377 | if (pipe_write_skipped) |
|
|
3378 | { |
|
|
3379 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3380 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3381 | } |
|
|
3382 | |
|
|
3383 | |
2557 | /* update ev_rt_now, do magic */ |
3384 | /* update ev_rt_now, do magic */ |
2558 | time_update (EV_A_ waittime + sleeptime); |
3385 | time_update (EV_A_ waittime + sleeptime); |
2559 | } |
3386 | } |
2560 | |
3387 | |
2561 | /* queue pending timers and reschedule them */ |
3388 | /* queue pending timers and reschedule them */ |
… | |
… | |
2587 | loop_done = EVBREAK_CANCEL; |
3414 | loop_done = EVBREAK_CANCEL; |
2588 | |
3415 | |
2589 | #if EV_FEATURE_API |
3416 | #if EV_FEATURE_API |
2590 | --loop_depth; |
3417 | --loop_depth; |
2591 | #endif |
3418 | #endif |
|
|
3419 | |
|
|
3420 | return activecnt; |
2592 | } |
3421 | } |
2593 | |
3422 | |
2594 | void |
3423 | void |
2595 | ev_break (EV_P_ int how) |
3424 | ev_break (EV_P_ int how) EV_THROW |
2596 | { |
3425 | { |
2597 | loop_done = how; |
3426 | loop_done = how; |
2598 | } |
3427 | } |
2599 | |
3428 | |
2600 | void |
3429 | void |
2601 | ev_ref (EV_P) |
3430 | ev_ref (EV_P) EV_THROW |
2602 | { |
3431 | { |
2603 | ++activecnt; |
3432 | ++activecnt; |
2604 | } |
3433 | } |
2605 | |
3434 | |
2606 | void |
3435 | void |
2607 | ev_unref (EV_P) |
3436 | ev_unref (EV_P) EV_THROW |
2608 | { |
3437 | { |
2609 | --activecnt; |
3438 | --activecnt; |
2610 | } |
3439 | } |
2611 | |
3440 | |
2612 | void |
3441 | void |
2613 | ev_now_update (EV_P) |
3442 | ev_now_update (EV_P) EV_THROW |
2614 | { |
3443 | { |
2615 | time_update (EV_A_ 1e100); |
3444 | time_update (EV_A_ 1e100); |
2616 | } |
3445 | } |
2617 | |
3446 | |
2618 | void |
3447 | void |
2619 | ev_suspend (EV_P) |
3448 | ev_suspend (EV_P) EV_THROW |
2620 | { |
3449 | { |
2621 | ev_now_update (EV_A); |
3450 | ev_now_update (EV_A); |
2622 | } |
3451 | } |
2623 | |
3452 | |
2624 | void |
3453 | void |
2625 | ev_resume (EV_P) |
3454 | ev_resume (EV_P) EV_THROW |
2626 | { |
3455 | { |
2627 | ev_tstamp mn_prev = mn_now; |
3456 | ev_tstamp mn_prev = mn_now; |
2628 | |
3457 | |
2629 | ev_now_update (EV_A); |
3458 | ev_now_update (EV_A); |
2630 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3459 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2669 | w->pending = 0; |
3498 | w->pending = 0; |
2670 | } |
3499 | } |
2671 | } |
3500 | } |
2672 | |
3501 | |
2673 | int |
3502 | int |
2674 | ev_clear_pending (EV_P_ void *w) |
3503 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2675 | { |
3504 | { |
2676 | W w_ = (W)w; |
3505 | W w_ = (W)w; |
2677 | int pending = w_->pending; |
3506 | int pending = w_->pending; |
2678 | |
3507 | |
2679 | if (expect_true (pending)) |
3508 | if (expect_true (pending)) |
… | |
… | |
2712 | } |
3541 | } |
2713 | |
3542 | |
2714 | /*****************************************************************************/ |
3543 | /*****************************************************************************/ |
2715 | |
3544 | |
2716 | void noinline |
3545 | void noinline |
2717 | ev_io_start (EV_P_ ev_io *w) |
3546 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2718 | { |
3547 | { |
2719 | int fd = w->fd; |
3548 | int fd = w->fd; |
2720 | |
3549 | |
2721 | if (expect_false (ev_is_active (w))) |
3550 | if (expect_false (ev_is_active (w))) |
2722 | return; |
3551 | return; |
… | |
… | |
2728 | |
3557 | |
2729 | ev_start (EV_A_ (W)w, 1); |
3558 | ev_start (EV_A_ (W)w, 1); |
2730 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3559 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2731 | wlist_add (&anfds[fd].head, (WL)w); |
3560 | wlist_add (&anfds[fd].head, (WL)w); |
2732 | |
3561 | |
|
|
3562 | /* common bug, apparently */ |
|
|
3563 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3564 | |
2733 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3565 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2734 | w->events &= ~EV__IOFDSET; |
3566 | w->events &= ~EV__IOFDSET; |
2735 | |
3567 | |
2736 | EV_FREQUENT_CHECK; |
3568 | EV_FREQUENT_CHECK; |
2737 | } |
3569 | } |
2738 | |
3570 | |
2739 | void noinline |
3571 | void noinline |
2740 | ev_io_stop (EV_P_ ev_io *w) |
3572 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2741 | { |
3573 | { |
2742 | clear_pending (EV_A_ (W)w); |
3574 | clear_pending (EV_A_ (W)w); |
2743 | if (expect_false (!ev_is_active (w))) |
3575 | if (expect_false (!ev_is_active (w))) |
2744 | return; |
3576 | return; |
2745 | |
3577 | |
… | |
… | |
2754 | |
3586 | |
2755 | EV_FREQUENT_CHECK; |
3587 | EV_FREQUENT_CHECK; |
2756 | } |
3588 | } |
2757 | |
3589 | |
2758 | void noinline |
3590 | void noinline |
2759 | ev_timer_start (EV_P_ ev_timer *w) |
3591 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2760 | { |
3592 | { |
2761 | if (expect_false (ev_is_active (w))) |
3593 | if (expect_false (ev_is_active (w))) |
2762 | return; |
3594 | return; |
2763 | |
3595 | |
2764 | ev_at (w) += mn_now; |
3596 | ev_at (w) += mn_now; |
… | |
… | |
2778 | |
3610 | |
2779 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3611 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2780 | } |
3612 | } |
2781 | |
3613 | |
2782 | void noinline |
3614 | void noinline |
2783 | ev_timer_stop (EV_P_ ev_timer *w) |
3615 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2784 | { |
3616 | { |
2785 | clear_pending (EV_A_ (W)w); |
3617 | clear_pending (EV_A_ (W)w); |
2786 | if (expect_false (!ev_is_active (w))) |
3618 | if (expect_false (!ev_is_active (w))) |
2787 | return; |
3619 | return; |
2788 | |
3620 | |
… | |
… | |
2808 | |
3640 | |
2809 | EV_FREQUENT_CHECK; |
3641 | EV_FREQUENT_CHECK; |
2810 | } |
3642 | } |
2811 | |
3643 | |
2812 | void noinline |
3644 | void noinline |
2813 | ev_timer_again (EV_P_ ev_timer *w) |
3645 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2814 | { |
3646 | { |
2815 | EV_FREQUENT_CHECK; |
3647 | EV_FREQUENT_CHECK; |
|
|
3648 | |
|
|
3649 | clear_pending (EV_A_ (W)w); |
2816 | |
3650 | |
2817 | if (ev_is_active (w)) |
3651 | if (ev_is_active (w)) |
2818 | { |
3652 | { |
2819 | if (w->repeat) |
3653 | if (w->repeat) |
2820 | { |
3654 | { |
… | |
… | |
2833 | |
3667 | |
2834 | EV_FREQUENT_CHECK; |
3668 | EV_FREQUENT_CHECK; |
2835 | } |
3669 | } |
2836 | |
3670 | |
2837 | ev_tstamp |
3671 | ev_tstamp |
2838 | ev_timer_remaining (EV_P_ ev_timer *w) |
3672 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2839 | { |
3673 | { |
2840 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3674 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2841 | } |
3675 | } |
2842 | |
3676 | |
2843 | #if EV_PERIODIC_ENABLE |
3677 | #if EV_PERIODIC_ENABLE |
2844 | void noinline |
3678 | void noinline |
2845 | ev_periodic_start (EV_P_ ev_periodic *w) |
3679 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2846 | { |
3680 | { |
2847 | if (expect_false (ev_is_active (w))) |
3681 | if (expect_false (ev_is_active (w))) |
2848 | return; |
3682 | return; |
2849 | |
3683 | |
2850 | if (w->reschedule_cb) |
3684 | if (w->reschedule_cb) |
… | |
… | |
2870 | |
3704 | |
2871 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3705 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2872 | } |
3706 | } |
2873 | |
3707 | |
2874 | void noinline |
3708 | void noinline |
2875 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3709 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2876 | { |
3710 | { |
2877 | clear_pending (EV_A_ (W)w); |
3711 | clear_pending (EV_A_ (W)w); |
2878 | if (expect_false (!ev_is_active (w))) |
3712 | if (expect_false (!ev_is_active (w))) |
2879 | return; |
3713 | return; |
2880 | |
3714 | |
… | |
… | |
2898 | |
3732 | |
2899 | EV_FREQUENT_CHECK; |
3733 | EV_FREQUENT_CHECK; |
2900 | } |
3734 | } |
2901 | |
3735 | |
2902 | void noinline |
3736 | void noinline |
2903 | ev_periodic_again (EV_P_ ev_periodic *w) |
3737 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2904 | { |
3738 | { |
2905 | /* TODO: use adjustheap and recalculation */ |
3739 | /* TODO: use adjustheap and recalculation */ |
2906 | ev_periodic_stop (EV_A_ w); |
3740 | ev_periodic_stop (EV_A_ w); |
2907 | ev_periodic_start (EV_A_ w); |
3741 | ev_periodic_start (EV_A_ w); |
2908 | } |
3742 | } |
… | |
… | |
2913 | #endif |
3747 | #endif |
2914 | |
3748 | |
2915 | #if EV_SIGNAL_ENABLE |
3749 | #if EV_SIGNAL_ENABLE |
2916 | |
3750 | |
2917 | void noinline |
3751 | void noinline |
2918 | ev_signal_start (EV_P_ ev_signal *w) |
3752 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2919 | { |
3753 | { |
2920 | if (expect_false (ev_is_active (w))) |
3754 | if (expect_false (ev_is_active (w))) |
2921 | return; |
3755 | return; |
2922 | |
3756 | |
2923 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3757 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2925 | #if EV_MULTIPLICITY |
3759 | #if EV_MULTIPLICITY |
2926 | assert (("libev: a signal must not be attached to two different loops", |
3760 | assert (("libev: a signal must not be attached to two different loops", |
2927 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3761 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2928 | |
3762 | |
2929 | signals [w->signum - 1].loop = EV_A; |
3763 | signals [w->signum - 1].loop = EV_A; |
|
|
3764 | ECB_MEMORY_FENCE_RELEASE; |
2930 | #endif |
3765 | #endif |
2931 | |
3766 | |
2932 | EV_FREQUENT_CHECK; |
3767 | EV_FREQUENT_CHECK; |
2933 | |
3768 | |
2934 | #if EV_USE_SIGNALFD |
3769 | #if EV_USE_SIGNALFD |
… | |
… | |
2994 | |
3829 | |
2995 | EV_FREQUENT_CHECK; |
3830 | EV_FREQUENT_CHECK; |
2996 | } |
3831 | } |
2997 | |
3832 | |
2998 | void noinline |
3833 | void noinline |
2999 | ev_signal_stop (EV_P_ ev_signal *w) |
3834 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3000 | { |
3835 | { |
3001 | clear_pending (EV_A_ (W)w); |
3836 | clear_pending (EV_A_ (W)w); |
3002 | if (expect_false (!ev_is_active (w))) |
3837 | if (expect_false (!ev_is_active (w))) |
3003 | return; |
3838 | return; |
3004 | |
3839 | |
… | |
… | |
3035 | #endif |
3870 | #endif |
3036 | |
3871 | |
3037 | #if EV_CHILD_ENABLE |
3872 | #if EV_CHILD_ENABLE |
3038 | |
3873 | |
3039 | void |
3874 | void |
3040 | ev_child_start (EV_P_ ev_child *w) |
3875 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3041 | { |
3876 | { |
3042 | #if EV_MULTIPLICITY |
3877 | #if EV_MULTIPLICITY |
3043 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3878 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3044 | #endif |
3879 | #endif |
3045 | if (expect_false (ev_is_active (w))) |
3880 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3052 | |
3887 | |
3053 | EV_FREQUENT_CHECK; |
3888 | EV_FREQUENT_CHECK; |
3054 | } |
3889 | } |
3055 | |
3890 | |
3056 | void |
3891 | void |
3057 | ev_child_stop (EV_P_ ev_child *w) |
3892 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3058 | { |
3893 | { |
3059 | clear_pending (EV_A_ (W)w); |
3894 | clear_pending (EV_A_ (W)w); |
3060 | if (expect_false (!ev_is_active (w))) |
3895 | if (expect_false (!ev_is_active (w))) |
3061 | return; |
3896 | return; |
3062 | |
3897 | |
… | |
… | |
3089 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3924 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3090 | |
3925 | |
3091 | static void noinline |
3926 | static void noinline |
3092 | infy_add (EV_P_ ev_stat *w) |
3927 | infy_add (EV_P_ ev_stat *w) |
3093 | { |
3928 | { |
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); |
3929 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3930 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3931 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3932 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3095 | |
3933 | |
3096 | if (w->wd >= 0) |
3934 | if (w->wd >= 0) |
3097 | { |
3935 | { |
3098 | struct statfs sfs; |
3936 | struct statfs sfs; |
3099 | |
3937 | |
… | |
… | |
3103 | |
3941 | |
3104 | if (!fs_2625) |
3942 | if (!fs_2625) |
3105 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3943 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3106 | else if (!statfs (w->path, &sfs) |
3944 | else if (!statfs (w->path, &sfs) |
3107 | && (sfs.f_type == 0x1373 /* devfs */ |
3945 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3946 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3947 | || sfs.f_type == 0x4d44 /* msdos */ |
3108 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3948 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3949 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3950 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3951 | || sfs.f_type == 0x5346544e /* ntfs */ |
3109 | || sfs.f_type == 0x3153464a /* jfs */ |
3952 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3953 | || sfs.f_type == 0x9123683e /* btrfs */ |
3110 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3954 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3111 | || sfs.f_type == 0x01021994 /* tempfs */ |
3955 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3112 | || sfs.f_type == 0x58465342 /* xfs */)) |
3956 | || sfs.f_type == 0x58465342 /* xfs */)) |
3113 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3957 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3114 | else |
3958 | else |
3115 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3959 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3116 | } |
3960 | } |
… | |
… | |
3214 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4058 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3215 | ofs += sizeof (struct inotify_event) + ev->len; |
4059 | ofs += sizeof (struct inotify_event) + ev->len; |
3216 | } |
4060 | } |
3217 | } |
4061 | } |
3218 | |
4062 | |
3219 | inline_size void |
4063 | inline_size void ecb_cold |
3220 | ev_check_2625 (EV_P) |
4064 | ev_check_2625 (EV_P) |
3221 | { |
4065 | { |
3222 | /* kernels < 2.6.25 are borked |
4066 | /* kernels < 2.6.25 are borked |
3223 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4067 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3224 | */ |
4068 | */ |
… | |
… | |
3229 | } |
4073 | } |
3230 | |
4074 | |
3231 | inline_size int |
4075 | inline_size int |
3232 | infy_newfd (void) |
4076 | infy_newfd (void) |
3233 | { |
4077 | { |
3234 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4078 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3235 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4079 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3236 | if (fd >= 0) |
4080 | if (fd >= 0) |
3237 | return fd; |
4081 | return fd; |
3238 | #endif |
4082 | #endif |
3239 | return inotify_init (); |
4083 | return inotify_init (); |
… | |
… | |
3314 | #else |
4158 | #else |
3315 | # define EV_LSTAT(p,b) lstat (p, b) |
4159 | # define EV_LSTAT(p,b) lstat (p, b) |
3316 | #endif |
4160 | #endif |
3317 | |
4161 | |
3318 | void |
4162 | void |
3319 | ev_stat_stat (EV_P_ ev_stat *w) |
4163 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3320 | { |
4164 | { |
3321 | if (lstat (w->path, &w->attr) < 0) |
4165 | if (lstat (w->path, &w->attr) < 0) |
3322 | w->attr.st_nlink = 0; |
4166 | w->attr.st_nlink = 0; |
3323 | else if (!w->attr.st_nlink) |
4167 | else if (!w->attr.st_nlink) |
3324 | w->attr.st_nlink = 1; |
4168 | w->attr.st_nlink = 1; |
… | |
… | |
3363 | ev_feed_event (EV_A_ w, EV_STAT); |
4207 | ev_feed_event (EV_A_ w, EV_STAT); |
3364 | } |
4208 | } |
3365 | } |
4209 | } |
3366 | |
4210 | |
3367 | void |
4211 | void |
3368 | ev_stat_start (EV_P_ ev_stat *w) |
4212 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3369 | { |
4213 | { |
3370 | if (expect_false (ev_is_active (w))) |
4214 | if (expect_false (ev_is_active (w))) |
3371 | return; |
4215 | return; |
3372 | |
4216 | |
3373 | ev_stat_stat (EV_A_ w); |
4217 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3394 | |
4238 | |
3395 | EV_FREQUENT_CHECK; |
4239 | EV_FREQUENT_CHECK; |
3396 | } |
4240 | } |
3397 | |
4241 | |
3398 | void |
4242 | void |
3399 | ev_stat_stop (EV_P_ ev_stat *w) |
4243 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3400 | { |
4244 | { |
3401 | clear_pending (EV_A_ (W)w); |
4245 | clear_pending (EV_A_ (W)w); |
3402 | if (expect_false (!ev_is_active (w))) |
4246 | if (expect_false (!ev_is_active (w))) |
3403 | return; |
4247 | return; |
3404 | |
4248 | |
… | |
… | |
3420 | } |
4264 | } |
3421 | #endif |
4265 | #endif |
3422 | |
4266 | |
3423 | #if EV_IDLE_ENABLE |
4267 | #if EV_IDLE_ENABLE |
3424 | void |
4268 | void |
3425 | ev_idle_start (EV_P_ ev_idle *w) |
4269 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3426 | { |
4270 | { |
3427 | if (expect_false (ev_is_active (w))) |
4271 | if (expect_false (ev_is_active (w))) |
3428 | return; |
4272 | return; |
3429 | |
4273 | |
3430 | pri_adjust (EV_A_ (W)w); |
4274 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3443 | |
4287 | |
3444 | EV_FREQUENT_CHECK; |
4288 | EV_FREQUENT_CHECK; |
3445 | } |
4289 | } |
3446 | |
4290 | |
3447 | void |
4291 | void |
3448 | ev_idle_stop (EV_P_ ev_idle *w) |
4292 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3449 | { |
4293 | { |
3450 | clear_pending (EV_A_ (W)w); |
4294 | clear_pending (EV_A_ (W)w); |
3451 | if (expect_false (!ev_is_active (w))) |
4295 | if (expect_false (!ev_is_active (w))) |
3452 | return; |
4296 | return; |
3453 | |
4297 | |
… | |
… | |
3467 | } |
4311 | } |
3468 | #endif |
4312 | #endif |
3469 | |
4313 | |
3470 | #if EV_PREPARE_ENABLE |
4314 | #if EV_PREPARE_ENABLE |
3471 | void |
4315 | void |
3472 | ev_prepare_start (EV_P_ ev_prepare *w) |
4316 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3473 | { |
4317 | { |
3474 | if (expect_false (ev_is_active (w))) |
4318 | if (expect_false (ev_is_active (w))) |
3475 | return; |
4319 | return; |
3476 | |
4320 | |
3477 | EV_FREQUENT_CHECK; |
4321 | EV_FREQUENT_CHECK; |
… | |
… | |
3482 | |
4326 | |
3483 | EV_FREQUENT_CHECK; |
4327 | EV_FREQUENT_CHECK; |
3484 | } |
4328 | } |
3485 | |
4329 | |
3486 | void |
4330 | void |
3487 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4331 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3488 | { |
4332 | { |
3489 | clear_pending (EV_A_ (W)w); |
4333 | clear_pending (EV_A_ (W)w); |
3490 | if (expect_false (!ev_is_active (w))) |
4334 | if (expect_false (!ev_is_active (w))) |
3491 | return; |
4335 | return; |
3492 | |
4336 | |
… | |
… | |
3505 | } |
4349 | } |
3506 | #endif |
4350 | #endif |
3507 | |
4351 | |
3508 | #if EV_CHECK_ENABLE |
4352 | #if EV_CHECK_ENABLE |
3509 | void |
4353 | void |
3510 | ev_check_start (EV_P_ ev_check *w) |
4354 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3511 | { |
4355 | { |
3512 | if (expect_false (ev_is_active (w))) |
4356 | if (expect_false (ev_is_active (w))) |
3513 | return; |
4357 | return; |
3514 | |
4358 | |
3515 | EV_FREQUENT_CHECK; |
4359 | EV_FREQUENT_CHECK; |
… | |
… | |
3520 | |
4364 | |
3521 | EV_FREQUENT_CHECK; |
4365 | EV_FREQUENT_CHECK; |
3522 | } |
4366 | } |
3523 | |
4367 | |
3524 | void |
4368 | void |
3525 | ev_check_stop (EV_P_ ev_check *w) |
4369 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3526 | { |
4370 | { |
3527 | clear_pending (EV_A_ (W)w); |
4371 | clear_pending (EV_A_ (W)w); |
3528 | if (expect_false (!ev_is_active (w))) |
4372 | if (expect_false (!ev_is_active (w))) |
3529 | return; |
4373 | return; |
3530 | |
4374 | |
… | |
… | |
3543 | } |
4387 | } |
3544 | #endif |
4388 | #endif |
3545 | |
4389 | |
3546 | #if EV_EMBED_ENABLE |
4390 | #if EV_EMBED_ENABLE |
3547 | void noinline |
4391 | void noinline |
3548 | ev_embed_sweep (EV_P_ ev_embed *w) |
4392 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3549 | { |
4393 | { |
3550 | ev_run (w->other, EVRUN_NOWAIT); |
4394 | ev_run (w->other, EVRUN_NOWAIT); |
3551 | } |
4395 | } |
3552 | |
4396 | |
3553 | static void |
4397 | static void |
… | |
… | |
3601 | ev_idle_stop (EV_A_ idle); |
4445 | ev_idle_stop (EV_A_ idle); |
3602 | } |
4446 | } |
3603 | #endif |
4447 | #endif |
3604 | |
4448 | |
3605 | void |
4449 | void |
3606 | ev_embed_start (EV_P_ ev_embed *w) |
4450 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3607 | { |
4451 | { |
3608 | if (expect_false (ev_is_active (w))) |
4452 | if (expect_false (ev_is_active (w))) |
3609 | return; |
4453 | return; |
3610 | |
4454 | |
3611 | { |
4455 | { |
… | |
… | |
3632 | |
4476 | |
3633 | EV_FREQUENT_CHECK; |
4477 | EV_FREQUENT_CHECK; |
3634 | } |
4478 | } |
3635 | |
4479 | |
3636 | void |
4480 | void |
3637 | ev_embed_stop (EV_P_ ev_embed *w) |
4481 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3638 | { |
4482 | { |
3639 | clear_pending (EV_A_ (W)w); |
4483 | clear_pending (EV_A_ (W)w); |
3640 | if (expect_false (!ev_is_active (w))) |
4484 | if (expect_false (!ev_is_active (w))) |
3641 | return; |
4485 | return; |
3642 | |
4486 | |
… | |
… | |
3652 | } |
4496 | } |
3653 | #endif |
4497 | #endif |
3654 | |
4498 | |
3655 | #if EV_FORK_ENABLE |
4499 | #if EV_FORK_ENABLE |
3656 | void |
4500 | void |
3657 | ev_fork_start (EV_P_ ev_fork *w) |
4501 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3658 | { |
4502 | { |
3659 | if (expect_false (ev_is_active (w))) |
4503 | if (expect_false (ev_is_active (w))) |
3660 | return; |
4504 | return; |
3661 | |
4505 | |
3662 | EV_FREQUENT_CHECK; |
4506 | EV_FREQUENT_CHECK; |
… | |
… | |
3667 | |
4511 | |
3668 | EV_FREQUENT_CHECK; |
4512 | EV_FREQUENT_CHECK; |
3669 | } |
4513 | } |
3670 | |
4514 | |
3671 | void |
4515 | void |
3672 | ev_fork_stop (EV_P_ ev_fork *w) |
4516 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3673 | { |
4517 | { |
3674 | clear_pending (EV_A_ (W)w); |
4518 | clear_pending (EV_A_ (W)w); |
3675 | if (expect_false (!ev_is_active (w))) |
4519 | if (expect_false (!ev_is_active (w))) |
3676 | return; |
4520 | return; |
3677 | |
4521 | |
… | |
… | |
3690 | } |
4534 | } |
3691 | #endif |
4535 | #endif |
3692 | |
4536 | |
3693 | #if EV_CLEANUP_ENABLE |
4537 | #if EV_CLEANUP_ENABLE |
3694 | void |
4538 | void |
3695 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4539 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3696 | { |
4540 | { |
3697 | if (expect_false (ev_is_active (w))) |
4541 | if (expect_false (ev_is_active (w))) |
3698 | return; |
4542 | return; |
3699 | |
4543 | |
3700 | EV_FREQUENT_CHECK; |
4544 | EV_FREQUENT_CHECK; |
… | |
… | |
3707 | ev_unref (EV_A); |
4551 | ev_unref (EV_A); |
3708 | EV_FREQUENT_CHECK; |
4552 | EV_FREQUENT_CHECK; |
3709 | } |
4553 | } |
3710 | |
4554 | |
3711 | void |
4555 | void |
3712 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4556 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3713 | { |
4557 | { |
3714 | clear_pending (EV_A_ (W)w); |
4558 | clear_pending (EV_A_ (W)w); |
3715 | if (expect_false (!ev_is_active (w))) |
4559 | if (expect_false (!ev_is_active (w))) |
3716 | return; |
4560 | return; |
3717 | |
4561 | |
… | |
… | |
3731 | } |
4575 | } |
3732 | #endif |
4576 | #endif |
3733 | |
4577 | |
3734 | #if EV_ASYNC_ENABLE |
4578 | #if EV_ASYNC_ENABLE |
3735 | void |
4579 | void |
3736 | ev_async_start (EV_P_ ev_async *w) |
4580 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3737 | { |
4581 | { |
3738 | if (expect_false (ev_is_active (w))) |
4582 | if (expect_false (ev_is_active (w))) |
3739 | return; |
4583 | return; |
3740 | |
4584 | |
3741 | w->sent = 0; |
4585 | w->sent = 0; |
… | |
… | |
3750 | |
4594 | |
3751 | EV_FREQUENT_CHECK; |
4595 | EV_FREQUENT_CHECK; |
3752 | } |
4596 | } |
3753 | |
4597 | |
3754 | void |
4598 | void |
3755 | ev_async_stop (EV_P_ ev_async *w) |
4599 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3756 | { |
4600 | { |
3757 | clear_pending (EV_A_ (W)w); |
4601 | clear_pending (EV_A_ (W)w); |
3758 | if (expect_false (!ev_is_active (w))) |
4602 | if (expect_false (!ev_is_active (w))) |
3759 | return; |
4603 | return; |
3760 | |
4604 | |
… | |
… | |
3771 | |
4615 | |
3772 | EV_FREQUENT_CHECK; |
4616 | EV_FREQUENT_CHECK; |
3773 | } |
4617 | } |
3774 | |
4618 | |
3775 | void |
4619 | void |
3776 | ev_async_send (EV_P_ ev_async *w) |
4620 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3777 | { |
4621 | { |
3778 | w->sent = 1; |
4622 | w->sent = 1; |
3779 | evpipe_write (EV_A_ &async_pending); |
4623 | evpipe_write (EV_A_ &async_pending); |
3780 | } |
4624 | } |
3781 | #endif |
4625 | #endif |
… | |
… | |
3818 | |
4662 | |
3819 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4663 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3820 | } |
4664 | } |
3821 | |
4665 | |
3822 | void |
4666 | void |
3823 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4667 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3824 | { |
4668 | { |
3825 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4669 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3826 | |
4670 | |
3827 | if (expect_false (!once)) |
4671 | if (expect_false (!once)) |
3828 | { |
4672 | { |
… | |
… | |
3849 | } |
4693 | } |
3850 | |
4694 | |
3851 | /*****************************************************************************/ |
4695 | /*****************************************************************************/ |
3852 | |
4696 | |
3853 | #if EV_WALK_ENABLE |
4697 | #if EV_WALK_ENABLE |
3854 | void |
4698 | void ecb_cold |
3855 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4699 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3856 | { |
4700 | { |
3857 | int i, j; |
4701 | int i, j; |
3858 | ev_watcher_list *wl, *wn; |
4702 | ev_watcher_list *wl, *wn; |
3859 | |
4703 | |
3860 | if (types & (EV_IO | EV_EMBED)) |
4704 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3903 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4747 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3904 | #endif |
4748 | #endif |
3905 | |
4749 | |
3906 | #if EV_IDLE_ENABLE |
4750 | #if EV_IDLE_ENABLE |
3907 | if (types & EV_IDLE) |
4751 | if (types & EV_IDLE) |
3908 | for (j = NUMPRI; i--; ) |
4752 | for (j = NUMPRI; j--; ) |
3909 | for (i = idlecnt [j]; i--; ) |
4753 | for (i = idlecnt [j]; i--; ) |
3910 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4754 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3911 | #endif |
4755 | #endif |
3912 | |
4756 | |
3913 | #if EV_FORK_ENABLE |
4757 | #if EV_FORK_ENABLE |
… | |
… | |
3966 | |
4810 | |
3967 | #if EV_MULTIPLICITY |
4811 | #if EV_MULTIPLICITY |
3968 | #include "ev_wrap.h" |
4812 | #include "ev_wrap.h" |
3969 | #endif |
4813 | #endif |
3970 | |
4814 | |
3971 | EV_CPP(}) |
|
|
3972 | |
|
|