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 |
… | |
… | |
350 | #endif |
360 | #endif |
351 | |
361 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* 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. */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
364 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
365 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
366 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
369 | # define EV_USE_MONOTONIC 1 |
360 | # else |
370 | # else |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
387 | #endif |
397 | #endif |
388 | |
398 | |
389 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
401 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
402 | # include <sys/select.h> |
393 | # endif |
403 | # endif |
394 | #endif |
404 | #endif |
395 | |
405 | |
396 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
410 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
403 | # endif |
413 | # 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 |
414 | #endif |
409 | |
415 | |
410 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
471 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
472 | #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) |
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
474 | |
469 | /* the following are taken from libecb */ |
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
470 | /* ecb.h start */ |
476 | /* ECB.H BEGIN */ |
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477 | /* |
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478 | * libecb - http://software.schmorp.de/pkg/libecb |
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479 | * |
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480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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481 | * Copyright (©) 2011 Emanuele Giaquinta |
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482 | * All rights reserved. |
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483 | * |
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484 | * Redistribution and use in source and binary forms, with or without modifica- |
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485 | * tion, are permitted provided that the following conditions are met: |
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486 | * |
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487 | * 1. Redistributions of source code must retain the above copyright notice, |
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488 | * this list of conditions and the following disclaimer. |
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489 | * |
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490 | * 2. Redistributions in binary form must reproduce the above copyright |
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491 | * notice, this list of conditions and the following disclaimer in the |
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492 | * documentation and/or other materials provided with the distribution. |
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493 | * |
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494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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504 | */ |
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505 | |
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506 | #ifndef ECB_H |
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507 | #define ECB_H |
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508 | |
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509 | /* 16 bits major, 16 bits minor */ |
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510 | #define ECB_VERSION 0x00010001 |
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511 | |
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512 | #ifdef _WIN32 |
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513 | typedef signed char int8_t; |
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514 | typedef unsigned char uint8_t; |
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515 | typedef signed short int16_t; |
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516 | typedef unsigned short uint16_t; |
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517 | typedef signed int int32_t; |
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518 | typedef unsigned int uint32_t; |
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519 | #if __GNUC__ |
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520 | typedef signed long long int64_t; |
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521 | typedef unsigned long long uint64_t; |
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522 | #else /* _MSC_VER || __BORLANDC__ */ |
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523 | typedef signed __int64 int64_t; |
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524 | typedef unsigned __int64 uint64_t; |
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525 | #endif |
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526 | #ifdef _WIN64 |
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527 | #define ECB_PTRSIZE 8 |
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528 | typedef uint64_t uintptr_t; |
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529 | typedef int64_t intptr_t; |
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530 | #else |
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531 | #define ECB_PTRSIZE 4 |
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532 | typedef uint32_t uintptr_t; |
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533 | typedef int32_t intptr_t; |
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534 | #endif |
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535 | typedef intptr_t ptrdiff_t; |
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536 | #else |
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537 | #include <inttypes.h> |
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538 | #if UINTMAX_MAX > 0xffffffffU |
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539 | #define ECB_PTRSIZE 8 |
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540 | #else |
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541 | #define ECB_PTRSIZE 4 |
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542 | #endif |
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543 | #endif |
471 | |
544 | |
472 | /* many compilers define _GNUC_ to some versions but then only implement |
545 | /* many compilers define _GNUC_ to some versions but then only implement |
473 | * what their idiot authors think are the "more important" extensions, |
546 | * what their idiot authors think are the "more important" extensions, |
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
547 | * causing enormous grief in return for some better fake benchmark numbers. |
475 | * or so. |
548 | * or so. |
476 | * we try to detect these and simply assume they are not gcc - if they have |
549 | * we try to detect these and simply assume they are not gcc - if they have |
477 | * an issue with that they should have done it right in the first place. |
550 | * an issue with that they should have done it right in the first place. |
478 | */ |
551 | */ |
479 | #ifndef ECB_GCC_VERSION |
552 | #ifndef ECB_GCC_VERSION |
480 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
481 | #define ECB_GCC_VERSION(major,minor) 0 |
554 | #define ECB_GCC_VERSION(major,minor) 0 |
482 | #else |
555 | #else |
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
484 | #endif |
557 | #endif |
485 | #endif |
558 | #endif |
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559 | |
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560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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563 | #define ECB_CPP (__cplusplus+0) |
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564 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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565 | |
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566 | /*****************************************************************************/ |
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567 | |
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568 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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569 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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570 | |
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571 | #if ECB_NO_THREADS |
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572 | #define ECB_NO_SMP 1 |
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573 | #endif |
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574 | |
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575 | #if ECB_NO_SMP |
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576 | #define ECB_MEMORY_FENCE do { } while (0) |
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577 | #endif |
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578 | |
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579 | #ifndef ECB_MEMORY_FENCE |
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580 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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581 | #if __i386 || __i386__ |
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582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
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583 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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584 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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585 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
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586 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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587 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
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588 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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589 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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590 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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591 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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592 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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593 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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594 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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595 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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596 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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597 | #elif __sparc || __sparc__ |
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598 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
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599 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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600 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
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601 | #elif defined __s390__ || defined __s390x__ |
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602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
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603 | #elif defined __mips__ |
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604 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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605 | #elif defined __alpha__ |
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606 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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607 | #elif defined __hppa__ |
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608 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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610 | #elif defined __ia64__ |
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611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
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612 | #endif |
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613 | #endif |
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614 | #endif |
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615 | |
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616 | #ifndef ECB_MEMORY_FENCE |
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617 | #if ECB_GCC_VERSION(4,7) |
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618 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
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619 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
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620 | #elif defined __clang && __has_feature (cxx_atomic) |
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621 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
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622 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
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623 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
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624 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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625 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
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626 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
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627 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
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628 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
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629 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
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630 | #elif defined _WIN32 |
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631 | #include <WinNT.h> |
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632 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
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633 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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634 | #include <mbarrier.h> |
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635 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
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636 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
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637 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
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638 | #elif __xlC__ |
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639 | #define ECB_MEMORY_FENCE __sync () |
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640 | #endif |
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641 | #endif |
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642 | |
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643 | #ifndef ECB_MEMORY_FENCE |
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644 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
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645 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
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646 | /* not just C11 atomics and atomic accesses */ |
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647 | #include <stdatomic.h> |
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648 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
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649 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
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650 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
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651 | /* for most usages, or gcc and clang have a bug */ |
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652 | /* I *currently* lean towards the latter, and inefficiently implement */ |
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653 | /* all three of ecb's fences as a seq_cst fence */ |
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654 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
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655 | #endif |
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656 | #endif |
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657 | |
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658 | #ifndef ECB_MEMORY_FENCE |
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659 | #if !ECB_AVOID_PTHREADS |
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660 | /* |
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661 | * if you get undefined symbol references to pthread_mutex_lock, |
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662 | * or failure to find pthread.h, then you should implement |
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663 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
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664 | * OR provide pthread.h and link against the posix thread library |
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665 | * of your system. |
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666 | */ |
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667 | #include <pthread.h> |
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668 | #define ECB_NEEDS_PTHREADS 1 |
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669 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
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670 | |
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671 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
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672 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
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673 | #endif |
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674 | #endif |
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675 | |
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676 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
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677 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
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678 | #endif |
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679 | |
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680 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
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681 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
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682 | #endif |
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683 | |
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684 | /*****************************************************************************/ |
486 | |
685 | |
487 | #if __cplusplus |
686 | #if __cplusplus |
488 | #define ecb_inline static inline |
687 | #define ecb_inline static inline |
489 | #elif ECB_GCC_VERSION(2,5) |
688 | #elif ECB_GCC_VERSION(2,5) |
490 | #define ecb_inline static __inline__ |
689 | #define ecb_inline static __inline__ |
… | |
… | |
492 | #define ecb_inline static inline |
691 | #define ecb_inline static inline |
493 | #else |
692 | #else |
494 | #define ecb_inline static |
693 | #define ecb_inline static |
495 | #endif |
694 | #endif |
496 | |
695 | |
497 | #ifndef ECB_MEMORY_FENCE |
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|
498 | #if ECB_GCC_VERSION(2,5) |
696 | #if ECB_GCC_VERSION(3,3) |
499 | #if __x86 |
697 | #define ecb_restrict __restrict__ |
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
698 | #elif ECB_C99 |
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
699 | #define ecb_restrict restrict |
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
700 | #else |
503 | #elif __amd64 |
701 | #define ecb_restrict |
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
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|
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
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507 | #endif |
|
|
508 | #endif |
702 | #endif |
509 | #endif |
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|
510 | |
703 | |
511 | #ifndef ECB_MEMORY_FENCE |
704 | typedef int ecb_bool; |
512 | #if ECB_GCC_VERSION(4,4) |
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513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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|
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
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|
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
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|
516 | #elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */ |
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|
517 | #define ECB_MEMORY_FENCE do { } while (0) |
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|
518 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
519 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
520 | #elif defined(_WIN32) |
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|
521 | #include <WinNT.h> |
|
|
522 | #define ECB_MEMORY_FENCE MemoryBarrier () |
|
|
523 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
524 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
525 | #endif |
|
|
526 | #endif |
|
|
527 | |
705 | |
528 | #ifndef ECB_MEMORY_FENCE |
706 | #define ECB_CONCAT_(a, b) a ## b |
529 | #include <pthread.h> |
707 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
708 | #define ECB_STRINGIFY_(a) # a |
|
|
709 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
530 | |
710 | |
531 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
711 | #define ecb_function_ ecb_inline |
532 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
533 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
534 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
535 | #endif |
|
|
536 | |
712 | |
537 | #if ECB_GCC_VERSION(3,1) |
713 | #if ECB_GCC_VERSION(3,1) |
538 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
714 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
539 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
715 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
540 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
716 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
… | |
… | |
544 | #define ecb_is_constant(expr) 0 |
720 | #define ecb_is_constant(expr) 0 |
545 | #define ecb_expect(expr,value) (expr) |
721 | #define ecb_expect(expr,value) (expr) |
546 | #define ecb_prefetch(addr,rw,locality) |
722 | #define ecb_prefetch(addr,rw,locality) |
547 | #endif |
723 | #endif |
548 | |
724 | |
|
|
725 | /* no emulation for ecb_decltype */ |
|
|
726 | #if ECB_GCC_VERSION(4,5) |
|
|
727 | #define ecb_decltype(x) __decltype(x) |
|
|
728 | #elif ECB_GCC_VERSION(3,0) |
|
|
729 | #define ecb_decltype(x) __typeof(x) |
|
|
730 | #endif |
|
|
731 | |
549 | #define ecb_noinline ecb_attribute ((__noinline__)) |
732 | #define ecb_noinline ecb_attribute ((__noinline__)) |
550 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
551 | #define ecb_unused ecb_attribute ((__unused__)) |
733 | #define ecb_unused ecb_attribute ((__unused__)) |
552 | #define ecb_const ecb_attribute ((__const__)) |
734 | #define ecb_const ecb_attribute ((__const__)) |
553 | #define ecb_pure ecb_attribute ((__pure__)) |
735 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
736 | |
|
|
737 | #if ECB_C11 |
|
|
738 | #define ecb_noreturn _Noreturn |
|
|
739 | #else |
|
|
740 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
741 | #endif |
554 | |
742 | |
555 | #if ECB_GCC_VERSION(4,3) |
743 | #if ECB_GCC_VERSION(4,3) |
556 | #define ecb_artificial ecb_attribute ((__artificial__)) |
744 | #define ecb_artificial ecb_attribute ((__artificial__)) |
557 | #define ecb_hot ecb_attribute ((__hot__)) |
745 | #define ecb_hot ecb_attribute ((__hot__)) |
558 | #define ecb_cold ecb_attribute ((__cold__)) |
746 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
565 | /* put around conditional expressions if you are very sure that the */ |
753 | /* put around conditional expressions if you are very sure that the */ |
566 | /* expression is mostly true or mostly false. note that these return */ |
754 | /* expression is mostly true or mostly false. note that these return */ |
567 | /* booleans, not the expression. */ |
755 | /* booleans, not the expression. */ |
568 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
756 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
569 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
757 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
570 | /* ecb.h end */ |
758 | /* for compatibility to the rest of the world */ |
|
|
759 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
760 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
761 | |
|
|
762 | /* count trailing zero bits and count # of one bits */ |
|
|
763 | #if ECB_GCC_VERSION(3,4) |
|
|
764 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
765 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
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|
766 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
767 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
768 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
769 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
770 | /* no popcountll */ |
|
|
771 | #else |
|
|
772 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
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|
773 | ecb_function_ int |
|
|
774 | ecb_ctz32 (uint32_t x) |
|
|
775 | { |
|
|
776 | int r = 0; |
|
|
777 | |
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|
778 | x &= ~x + 1; /* this isolates the lowest bit */ |
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|
779 | |
|
|
780 | #if ECB_branchless_on_i386 |
|
|
781 | r += !!(x & 0xaaaaaaaa) << 0; |
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|
782 | r += !!(x & 0xcccccccc) << 1; |
|
|
783 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
784 | r += !!(x & 0xff00ff00) << 3; |
|
|
785 | r += !!(x & 0xffff0000) << 4; |
|
|
786 | #else |
|
|
787 | if (x & 0xaaaaaaaa) r += 1; |
|
|
788 | if (x & 0xcccccccc) r += 2; |
|
|
789 | if (x & 0xf0f0f0f0) r += 4; |
|
|
790 | if (x & 0xff00ff00) r += 8; |
|
|
791 | if (x & 0xffff0000) r += 16; |
|
|
792 | #endif |
|
|
793 | |
|
|
794 | return r; |
|
|
795 | } |
|
|
796 | |
|
|
797 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
798 | ecb_function_ int |
|
|
799 | ecb_ctz64 (uint64_t x) |
|
|
800 | { |
|
|
801 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
802 | return ecb_ctz32 (x >> shift) + shift; |
|
|
803 | } |
|
|
804 | |
|
|
805 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
806 | ecb_function_ int |
|
|
807 | ecb_popcount32 (uint32_t x) |
|
|
808 | { |
|
|
809 | x -= (x >> 1) & 0x55555555; |
|
|
810 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
811 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
812 | x *= 0x01010101; |
|
|
813 | |
|
|
814 | return x >> 24; |
|
|
815 | } |
|
|
816 | |
|
|
817 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
818 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
819 | { |
|
|
820 | int r = 0; |
|
|
821 | |
|
|
822 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
823 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
824 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
825 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
826 | if (x >> 1) { r += 1; } |
|
|
827 | |
|
|
828 | return r; |
|
|
829 | } |
|
|
830 | |
|
|
831 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
832 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
833 | { |
|
|
834 | int r = 0; |
|
|
835 | |
|
|
836 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
837 | |
|
|
838 | return r + ecb_ld32 (x); |
|
|
839 | } |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
843 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
844 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
845 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
846 | |
|
|
847 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
848 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
849 | { |
|
|
850 | return ( (x * 0x0802U & 0x22110U) |
|
|
851 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
852 | } |
|
|
853 | |
|
|
854 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
855 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
856 | { |
|
|
857 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
858 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
859 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
860 | x = ( x >> 8 ) | ( x << 8); |
|
|
861 | |
|
|
862 | return x; |
|
|
863 | } |
|
|
864 | |
|
|
865 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
866 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
867 | { |
|
|
868 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
869 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
870 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
871 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
872 | x = ( x >> 16 ) | ( x << 16); |
|
|
873 | |
|
|
874 | return x; |
|
|
875 | } |
|
|
876 | |
|
|
877 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
878 | /* so for this version we are lazy */ |
|
|
879 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
880 | ecb_function_ int |
|
|
881 | ecb_popcount64 (uint64_t x) |
|
|
882 | { |
|
|
883 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
884 | } |
|
|
885 | |
|
|
886 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
887 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
888 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
889 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
890 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
891 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
892 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
893 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
894 | |
|
|
895 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
896 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
897 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
898 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
899 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
900 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
901 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
902 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
903 | |
|
|
904 | #if ECB_GCC_VERSION(4,3) |
|
|
905 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
906 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
907 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
908 | #else |
|
|
909 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
910 | ecb_function_ uint16_t |
|
|
911 | ecb_bswap16 (uint16_t x) |
|
|
912 | { |
|
|
913 | return ecb_rotl16 (x, 8); |
|
|
914 | } |
|
|
915 | |
|
|
916 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
917 | ecb_function_ uint32_t |
|
|
918 | ecb_bswap32 (uint32_t x) |
|
|
919 | { |
|
|
920 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
921 | } |
|
|
922 | |
|
|
923 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
924 | ecb_function_ uint64_t |
|
|
925 | ecb_bswap64 (uint64_t x) |
|
|
926 | { |
|
|
927 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
928 | } |
|
|
929 | #endif |
|
|
930 | |
|
|
931 | #if ECB_GCC_VERSION(4,5) |
|
|
932 | #define ecb_unreachable() __builtin_unreachable () |
|
|
933 | #else |
|
|
934 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
935 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
936 | ecb_inline void ecb_unreachable (void) { } |
|
|
937 | #endif |
|
|
938 | |
|
|
939 | /* try to tell the compiler that some condition is definitely true */ |
|
|
940 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
941 | |
|
|
942 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
943 | ecb_inline unsigned char |
|
|
944 | ecb_byteorder_helper (void) |
|
|
945 | { |
|
|
946 | const uint32_t u = 0x11223344; |
|
|
947 | return *(unsigned char *)&u; |
|
|
948 | } |
|
|
949 | |
|
|
950 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
951 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
952 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
953 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
954 | |
|
|
955 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
956 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
957 | #else |
|
|
958 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | #if __cplusplus |
|
|
962 | template<typename T> |
|
|
963 | static inline T ecb_div_rd (T val, T div) |
|
|
964 | { |
|
|
965 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
966 | } |
|
|
967 | template<typename T> |
|
|
968 | static inline T ecb_div_ru (T val, T div) |
|
|
969 | { |
|
|
970 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
971 | } |
|
|
972 | #else |
|
|
973 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
974 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if ecb_cplusplus_does_not_suck |
|
|
978 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
979 | template<typename T, int N> |
|
|
980 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
981 | { |
|
|
982 | return N; |
|
|
983 | } |
|
|
984 | #else |
|
|
985 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | #endif |
|
|
989 | |
|
|
990 | /* ECB.H END */ |
|
|
991 | |
|
|
992 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
993 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
994 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
995 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
996 | * libev, in which cases the memory fences become nops. |
|
|
997 | * alternatively, you can remove this #error and link against libpthread, |
|
|
998 | * which will then provide the memory fences. |
|
|
999 | */ |
|
|
1000 | # error "memory fences not defined for your architecture, please report" |
|
|
1001 | #endif |
|
|
1002 | |
|
|
1003 | #ifndef ECB_MEMORY_FENCE |
|
|
1004 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1005 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1006 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1007 | #endif |
571 | |
1008 | |
572 | #define expect_false(cond) ecb_expect_false (cond) |
1009 | #define expect_false(cond) ecb_expect_false (cond) |
573 | #define expect_true(cond) ecb_expect_true (cond) |
1010 | #define expect_true(cond) ecb_expect_true (cond) |
574 | #define noinline ecb_noinline |
1011 | #define noinline ecb_noinline |
575 | |
1012 | |
… | |
… | |
721 | { |
1158 | { |
722 | write (STDERR_FILENO, msg, strlen (msg)); |
1159 | write (STDERR_FILENO, msg, strlen (msg)); |
723 | } |
1160 | } |
724 | #endif |
1161 | #endif |
725 | |
1162 | |
726 | static void (*syserr_cb)(const char *msg); |
1163 | static void (*syserr_cb)(const char *msg) EV_THROW; |
727 | |
1164 | |
728 | void ecb_cold |
1165 | void ecb_cold |
729 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1166 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
730 | { |
1167 | { |
731 | syserr_cb = cb; |
1168 | syserr_cb = cb; |
732 | } |
1169 | } |
733 | |
1170 | |
734 | static void noinline ecb_cold |
1171 | static void noinline ecb_cold |
… | |
… | |
752 | abort (); |
1189 | abort (); |
753 | } |
1190 | } |
754 | } |
1191 | } |
755 | |
1192 | |
756 | static void * |
1193 | static void * |
757 | ev_realloc_emul (void *ptr, long size) |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
758 | { |
1195 | { |
759 | #if __GLIBC__ |
1196 | #if __GLIBC__ |
760 | return realloc (ptr, size); |
1197 | return realloc (ptr, size); |
761 | #else |
1198 | #else |
762 | /* some systems, notably openbsd and darwin, fail to properly |
1199 | /* some systems, notably openbsd and darwin, fail to properly |
… | |
… | |
770 | free (ptr); |
1207 | free (ptr); |
771 | return 0; |
1208 | return 0; |
772 | #endif |
1209 | #endif |
773 | } |
1210 | } |
774 | |
1211 | |
775 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1212 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
776 | |
1213 | |
777 | void ecb_cold |
1214 | void ecb_cold |
778 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1215 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
779 | { |
1216 | { |
780 | alloc = cb; |
1217 | alloc = cb; |
781 | } |
1218 | } |
782 | |
1219 | |
783 | inline_speed void * |
1220 | inline_speed void * |
… | |
… | |
871 | #undef VAR |
1308 | #undef VAR |
872 | }; |
1309 | }; |
873 | #include "ev_wrap.h" |
1310 | #include "ev_wrap.h" |
874 | |
1311 | |
875 | static struct ev_loop default_loop_struct; |
1312 | static struct ev_loop default_loop_struct; |
876 | struct ev_loop *ev_default_loop_ptr; |
1313 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
877 | |
1314 | |
878 | #else |
1315 | #else |
879 | |
1316 | |
880 | ev_tstamp ev_rt_now; |
1317 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
881 | #define VAR(name,decl) static decl; |
1318 | #define VAR(name,decl) static decl; |
882 | #include "ev_vars.h" |
1319 | #include "ev_vars.h" |
883 | #undef VAR |
1320 | #undef VAR |
884 | |
1321 | |
885 | static int ev_default_loop_ptr; |
1322 | static int ev_default_loop_ptr; |
… | |
… | |
900 | |
1337 | |
901 | /*****************************************************************************/ |
1338 | /*****************************************************************************/ |
902 | |
1339 | |
903 | #ifndef EV_HAVE_EV_TIME |
1340 | #ifndef EV_HAVE_EV_TIME |
904 | ev_tstamp |
1341 | ev_tstamp |
905 | ev_time (void) |
1342 | ev_time (void) EV_THROW |
906 | { |
1343 | { |
907 | #if EV_USE_REALTIME |
1344 | #if EV_USE_REALTIME |
908 | if (expect_true (have_realtime)) |
1345 | if (expect_true (have_realtime)) |
909 | { |
1346 | { |
910 | struct timespec ts; |
1347 | struct timespec ts; |
… | |
… | |
934 | return ev_time (); |
1371 | return ev_time (); |
935 | } |
1372 | } |
936 | |
1373 | |
937 | #if EV_MULTIPLICITY |
1374 | #if EV_MULTIPLICITY |
938 | ev_tstamp |
1375 | ev_tstamp |
939 | ev_now (EV_P) |
1376 | ev_now (EV_P) EV_THROW |
940 | { |
1377 | { |
941 | return ev_rt_now; |
1378 | return ev_rt_now; |
942 | } |
1379 | } |
943 | #endif |
1380 | #endif |
944 | |
1381 | |
945 | void |
1382 | void |
946 | ev_sleep (ev_tstamp delay) |
1383 | ev_sleep (ev_tstamp delay) EV_THROW |
947 | { |
1384 | { |
948 | if (delay > 0.) |
1385 | if (delay > 0.) |
949 | { |
1386 | { |
950 | #if EV_USE_NANOSLEEP |
1387 | #if EV_USE_NANOSLEEP |
951 | struct timespec ts; |
1388 | struct timespec ts; |
952 | |
1389 | |
953 | EV_TS_SET (ts, delay); |
1390 | EV_TS_SET (ts, delay); |
954 | nanosleep (&ts, 0); |
1391 | nanosleep (&ts, 0); |
955 | #elif defined(_WIN32) |
1392 | #elif defined _WIN32 |
956 | Sleep ((unsigned long)(delay * 1e3)); |
1393 | Sleep ((unsigned long)(delay * 1e3)); |
957 | #else |
1394 | #else |
958 | struct timeval tv; |
1395 | struct timeval tv; |
959 | |
1396 | |
960 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1397 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
979 | |
1416 | |
980 | do |
1417 | do |
981 | ncur <<= 1; |
1418 | ncur <<= 1; |
982 | while (cnt > ncur); |
1419 | while (cnt > ncur); |
983 | |
1420 | |
984 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1421 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
985 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1422 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
986 | { |
1423 | { |
987 | ncur *= elem; |
1424 | ncur *= elem; |
988 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1425 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
989 | ncur = ncur - sizeof (void *) * 4; |
1426 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
1032 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1469 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1033 | { |
1470 | { |
1034 | } |
1471 | } |
1035 | |
1472 | |
1036 | void noinline |
1473 | void noinline |
1037 | ev_feed_event (EV_P_ void *w, int revents) |
1474 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1038 | { |
1475 | { |
1039 | W w_ = (W)w; |
1476 | W w_ = (W)w; |
1040 | int pri = ABSPRI (w_); |
1477 | int pri = ABSPRI (w_); |
1041 | |
1478 | |
1042 | if (expect_false (w_->pending)) |
1479 | if (expect_false (w_->pending)) |
… | |
… | |
1046 | w_->pending = ++pendingcnt [pri]; |
1483 | w_->pending = ++pendingcnt [pri]; |
1047 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1484 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1048 | pendings [pri][w_->pending - 1].w = w_; |
1485 | pendings [pri][w_->pending - 1].w = w_; |
1049 | pendings [pri][w_->pending - 1].events = revents; |
1486 | pendings [pri][w_->pending - 1].events = revents; |
1050 | } |
1487 | } |
|
|
1488 | |
|
|
1489 | pendingpri = NUMPRI - 1; |
1051 | } |
1490 | } |
1052 | |
1491 | |
1053 | inline_speed void |
1492 | inline_speed void |
1054 | feed_reverse (EV_P_ W w) |
1493 | feed_reverse (EV_P_ W w) |
1055 | { |
1494 | { |
… | |
… | |
1101 | if (expect_true (!anfd->reify)) |
1540 | if (expect_true (!anfd->reify)) |
1102 | fd_event_nocheck (EV_A_ fd, revents); |
1541 | fd_event_nocheck (EV_A_ fd, revents); |
1103 | } |
1542 | } |
1104 | |
1543 | |
1105 | void |
1544 | void |
1106 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1545 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1107 | { |
1546 | { |
1108 | if (fd >= 0 && fd < anfdmax) |
1547 | if (fd >= 0 && fd < anfdmax) |
1109 | fd_event_nocheck (EV_A_ fd, revents); |
1548 | fd_event_nocheck (EV_A_ fd, revents); |
1110 | } |
1549 | } |
1111 | |
1550 | |
… | |
… | |
1460 | } |
1899 | } |
1461 | |
1900 | |
1462 | inline_speed void |
1901 | inline_speed void |
1463 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1902 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1464 | { |
1903 | { |
|
|
1904 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1905 | |
1465 | if (expect_true (*flag)) |
1906 | if (expect_true (*flag)) |
1466 | return; |
1907 | return; |
1467 | |
1908 | |
1468 | *flag = 1; |
1909 | *flag = 1; |
1469 | |
|
|
1470 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1910 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1471 | |
1911 | |
1472 | pipe_write_skipped = 1; |
1912 | pipe_write_skipped = 1; |
1473 | |
1913 | |
1474 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1914 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1475 | |
1915 | |
1476 | if (pipe_write_wanted) |
1916 | if (pipe_write_wanted) |
1477 | { |
1917 | { |
1478 | int old_errno; |
1918 | int old_errno; |
1479 | |
1919 | |
1480 | pipe_write_skipped = 0; /* just an optimsiation, no fence needed */ |
1920 | pipe_write_skipped = 0; |
|
|
1921 | ECB_MEMORY_FENCE_RELEASE; |
1481 | |
1922 | |
1482 | old_errno = errno; /* save errno because write will clobber it */ |
1923 | old_errno = errno; /* save errno because write will clobber it */ |
1483 | |
1924 | |
1484 | #if EV_USE_EVENTFD |
1925 | #if EV_USE_EVENTFD |
1485 | if (evfd >= 0) |
1926 | if (evfd >= 0) |
… | |
… | |
1488 | write (evfd, &counter, sizeof (uint64_t)); |
1929 | write (evfd, &counter, sizeof (uint64_t)); |
1489 | } |
1930 | } |
1490 | else |
1931 | else |
1491 | #endif |
1932 | #endif |
1492 | { |
1933 | { |
1493 | /* win32 people keep sending patches that change this write() to send() */ |
1934 | #ifdef _WIN32 |
1494 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1935 | WSABUF buf; |
1495 | /* so when you think this write should be a send instead, please find out */ |
1936 | DWORD sent; |
1496 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1937 | buf.buf = &buf; |
1497 | /* tell me. thank you. */ |
1938 | buf.len = 1; |
|
|
1939 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1940 | #else |
1498 | write (evpipe [1], &(evpipe [1]), 1); |
1941 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1942 | #endif |
1499 | } |
1943 | } |
1500 | |
1944 | |
1501 | errno = old_errno; |
1945 | errno = old_errno; |
1502 | } |
1946 | } |
1503 | } |
1947 | } |
… | |
… | |
1518 | read (evfd, &counter, sizeof (uint64_t)); |
1962 | read (evfd, &counter, sizeof (uint64_t)); |
1519 | } |
1963 | } |
1520 | else |
1964 | else |
1521 | #endif |
1965 | #endif |
1522 | { |
1966 | { |
1523 | char dummy; |
1967 | char dummy[4]; |
1524 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1968 | #ifdef _WIN32 |
|
|
1969 | WSABUF buf; |
|
|
1970 | DWORD recvd; |
|
|
1971 | DWORD flags = 0; |
|
|
1972 | buf.buf = dummy; |
|
|
1973 | buf.len = sizeof (dummy); |
|
|
1974 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
1975 | #else |
1525 | read (evpipe [0], &dummy, 1); |
1976 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1977 | #endif |
1526 | } |
1978 | } |
1527 | } |
1979 | } |
1528 | |
1980 | |
1529 | pipe_write_skipped = 0; |
1981 | pipe_write_skipped = 0; |
|
|
1982 | |
|
|
1983 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1530 | |
1984 | |
1531 | #if EV_SIGNAL_ENABLE |
1985 | #if EV_SIGNAL_ENABLE |
1532 | if (sig_pending) |
1986 | if (sig_pending) |
1533 | { |
1987 | { |
1534 | sig_pending = 0; |
1988 | sig_pending = 0; |
|
|
1989 | |
|
|
1990 | ECB_MEMORY_FENCE; |
1535 | |
1991 | |
1536 | for (i = EV_NSIG - 1; i--; ) |
1992 | for (i = EV_NSIG - 1; i--; ) |
1537 | if (expect_false (signals [i].pending)) |
1993 | if (expect_false (signals [i].pending)) |
1538 | ev_feed_signal_event (EV_A_ i + 1); |
1994 | ev_feed_signal_event (EV_A_ i + 1); |
1539 | } |
1995 | } |
… | |
… | |
1541 | |
1997 | |
1542 | #if EV_ASYNC_ENABLE |
1998 | #if EV_ASYNC_ENABLE |
1543 | if (async_pending) |
1999 | if (async_pending) |
1544 | { |
2000 | { |
1545 | async_pending = 0; |
2001 | async_pending = 0; |
|
|
2002 | |
|
|
2003 | ECB_MEMORY_FENCE; |
1546 | |
2004 | |
1547 | for (i = asynccnt; i--; ) |
2005 | for (i = asynccnt; i--; ) |
1548 | if (asyncs [i]->sent) |
2006 | if (asyncs [i]->sent) |
1549 | { |
2007 | { |
1550 | asyncs [i]->sent = 0; |
2008 | asyncs [i]->sent = 0; |
|
|
2009 | ECB_MEMORY_FENCE_RELEASE; |
1551 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2010 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1552 | } |
2011 | } |
1553 | } |
2012 | } |
1554 | #endif |
2013 | #endif |
1555 | } |
2014 | } |
1556 | |
2015 | |
1557 | /*****************************************************************************/ |
2016 | /*****************************************************************************/ |
1558 | |
2017 | |
1559 | void |
2018 | void |
1560 | ev_feed_signal (int signum) |
2019 | ev_feed_signal (int signum) EV_THROW |
1561 | { |
2020 | { |
1562 | #if EV_MULTIPLICITY |
2021 | #if EV_MULTIPLICITY |
1563 | EV_P = signals [signum - 1].loop; |
2022 | EV_P = signals [signum - 1].loop; |
1564 | |
2023 | |
1565 | if (!EV_A) |
2024 | if (!EV_A) |
… | |
… | |
1582 | |
2041 | |
1583 | ev_feed_signal (signum); |
2042 | ev_feed_signal (signum); |
1584 | } |
2043 | } |
1585 | |
2044 | |
1586 | void noinline |
2045 | void noinline |
1587 | ev_feed_signal_event (EV_P_ int signum) |
2046 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1588 | { |
2047 | { |
1589 | WL w; |
2048 | WL w; |
1590 | |
2049 | |
1591 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2050 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1592 | return; |
2051 | return; |
1593 | |
2052 | |
1594 | --signum; |
2053 | --signum; |
1595 | |
2054 | |
1596 | #if EV_MULTIPLICITY |
2055 | #if EV_MULTIPLICITY |
… | |
… | |
1600 | if (expect_false (signals [signum].loop != EV_A)) |
2059 | if (expect_false (signals [signum].loop != EV_A)) |
1601 | return; |
2060 | return; |
1602 | #endif |
2061 | #endif |
1603 | |
2062 | |
1604 | signals [signum].pending = 0; |
2063 | signals [signum].pending = 0; |
|
|
2064 | ECB_MEMORY_FENCE_RELEASE; |
1605 | |
2065 | |
1606 | for (w = signals [signum].head; w; w = w->next) |
2066 | for (w = signals [signum].head; w; w = w->next) |
1607 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2067 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1608 | } |
2068 | } |
1609 | |
2069 | |
… | |
… | |
1708 | #if EV_USE_SELECT |
2168 | #if EV_USE_SELECT |
1709 | # include "ev_select.c" |
2169 | # include "ev_select.c" |
1710 | #endif |
2170 | #endif |
1711 | |
2171 | |
1712 | int ecb_cold |
2172 | int ecb_cold |
1713 | ev_version_major (void) |
2173 | ev_version_major (void) EV_THROW |
1714 | { |
2174 | { |
1715 | return EV_VERSION_MAJOR; |
2175 | return EV_VERSION_MAJOR; |
1716 | } |
2176 | } |
1717 | |
2177 | |
1718 | int ecb_cold |
2178 | int ecb_cold |
1719 | ev_version_minor (void) |
2179 | ev_version_minor (void) EV_THROW |
1720 | { |
2180 | { |
1721 | return EV_VERSION_MINOR; |
2181 | return EV_VERSION_MINOR; |
1722 | } |
2182 | } |
1723 | |
2183 | |
1724 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2184 | /* return true if we are running with elevated privileges and should ignore env variables */ |
… | |
… | |
1732 | || getgid () != getegid (); |
2192 | || getgid () != getegid (); |
1733 | #endif |
2193 | #endif |
1734 | } |
2194 | } |
1735 | |
2195 | |
1736 | unsigned int ecb_cold |
2196 | unsigned int ecb_cold |
1737 | ev_supported_backends (void) |
2197 | ev_supported_backends (void) EV_THROW |
1738 | { |
2198 | { |
1739 | unsigned int flags = 0; |
2199 | unsigned int flags = 0; |
1740 | |
2200 | |
1741 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2201 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1742 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2202 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1746 | |
2206 | |
1747 | return flags; |
2207 | return flags; |
1748 | } |
2208 | } |
1749 | |
2209 | |
1750 | unsigned int ecb_cold |
2210 | unsigned int ecb_cold |
1751 | ev_recommended_backends (void) |
2211 | ev_recommended_backends (void) EV_THROW |
1752 | { |
2212 | { |
1753 | unsigned int flags = ev_supported_backends (); |
2213 | unsigned int flags = ev_supported_backends (); |
1754 | |
2214 | |
1755 | #ifndef __NetBSD__ |
2215 | #ifndef __NetBSD__ |
1756 | /* kqueue is borked on everything but netbsd apparently */ |
2216 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1768 | |
2228 | |
1769 | return flags; |
2229 | return flags; |
1770 | } |
2230 | } |
1771 | |
2231 | |
1772 | unsigned int ecb_cold |
2232 | unsigned int ecb_cold |
1773 | ev_embeddable_backends (void) |
2233 | ev_embeddable_backends (void) EV_THROW |
1774 | { |
2234 | { |
1775 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2235 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1776 | |
2236 | |
1777 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2237 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1778 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2238 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1780 | |
2240 | |
1781 | return flags; |
2241 | return flags; |
1782 | } |
2242 | } |
1783 | |
2243 | |
1784 | unsigned int |
2244 | unsigned int |
1785 | ev_backend (EV_P) |
2245 | ev_backend (EV_P) EV_THROW |
1786 | { |
2246 | { |
1787 | return backend; |
2247 | return backend; |
1788 | } |
2248 | } |
1789 | |
2249 | |
1790 | #if EV_FEATURE_API |
2250 | #if EV_FEATURE_API |
1791 | unsigned int |
2251 | unsigned int |
1792 | ev_iteration (EV_P) |
2252 | ev_iteration (EV_P) EV_THROW |
1793 | { |
2253 | { |
1794 | return loop_count; |
2254 | return loop_count; |
1795 | } |
2255 | } |
1796 | |
2256 | |
1797 | unsigned int |
2257 | unsigned int |
1798 | ev_depth (EV_P) |
2258 | ev_depth (EV_P) EV_THROW |
1799 | { |
2259 | { |
1800 | return loop_depth; |
2260 | return loop_depth; |
1801 | } |
2261 | } |
1802 | |
2262 | |
1803 | void |
2263 | void |
1804 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2264 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1805 | { |
2265 | { |
1806 | io_blocktime = interval; |
2266 | io_blocktime = interval; |
1807 | } |
2267 | } |
1808 | |
2268 | |
1809 | void |
2269 | void |
1810 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2270 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1811 | { |
2271 | { |
1812 | timeout_blocktime = interval; |
2272 | timeout_blocktime = interval; |
1813 | } |
2273 | } |
1814 | |
2274 | |
1815 | void |
2275 | void |
1816 | ev_set_userdata (EV_P_ void *data) |
2276 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1817 | { |
2277 | { |
1818 | userdata = data; |
2278 | userdata = data; |
1819 | } |
2279 | } |
1820 | |
2280 | |
1821 | void * |
2281 | void * |
1822 | ev_userdata (EV_P) |
2282 | ev_userdata (EV_P) EV_THROW |
1823 | { |
2283 | { |
1824 | return userdata; |
2284 | return userdata; |
1825 | } |
2285 | } |
1826 | |
2286 | |
1827 | void |
2287 | void |
1828 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2288 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1829 | { |
2289 | { |
1830 | invoke_cb = invoke_pending_cb; |
2290 | invoke_cb = invoke_pending_cb; |
1831 | } |
2291 | } |
1832 | |
2292 | |
1833 | void |
2293 | void |
1834 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2294 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1835 | { |
2295 | { |
1836 | release_cb = release; |
2296 | release_cb = release; |
1837 | acquire_cb = acquire; |
2297 | acquire_cb = acquire; |
1838 | } |
2298 | } |
1839 | #endif |
2299 | #endif |
1840 | |
2300 | |
1841 | /* initialise a loop structure, must be zero-initialised */ |
2301 | /* initialise a loop structure, must be zero-initialised */ |
1842 | static void noinline ecb_cold |
2302 | static void noinline ecb_cold |
1843 | loop_init (EV_P_ unsigned int flags) |
2303 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1844 | { |
2304 | { |
1845 | if (!backend) |
2305 | if (!backend) |
1846 | { |
2306 | { |
1847 | origflags = flags; |
2307 | origflags = flags; |
1848 | |
2308 | |
… | |
… | |
1953 | EV_INVOKE_PENDING; |
2413 | EV_INVOKE_PENDING; |
1954 | } |
2414 | } |
1955 | #endif |
2415 | #endif |
1956 | |
2416 | |
1957 | #if EV_CHILD_ENABLE |
2417 | #if EV_CHILD_ENABLE |
1958 | if (ev_is_active (&childev)) |
2418 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1959 | { |
2419 | { |
1960 | ev_ref (EV_A); /* child watcher */ |
2420 | ev_ref (EV_A); /* child watcher */ |
1961 | ev_signal_stop (EV_A_ &childev); |
2421 | ev_signal_stop (EV_A_ &childev); |
1962 | } |
2422 | } |
1963 | #endif |
2423 | #endif |
… | |
… | |
2090 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2550 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2091 | } |
2551 | } |
2092 | |
2552 | |
2093 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2094 | evpipe_init (EV_A); |
2554 | evpipe_init (EV_A); |
2095 | /* now iterate over everything, in case we missed something */ |
2555 | /* iterate over everything, in case we missed something before */ |
2096 | pipecb (EV_A_ &pipe_w, EV_READ); |
2556 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2097 | #endif |
2557 | #endif |
2098 | } |
2558 | } |
2099 | |
2559 | |
2100 | postfork = 0; |
2560 | postfork = 0; |
2101 | } |
2561 | } |
2102 | |
2562 | |
2103 | #if EV_MULTIPLICITY |
2563 | #if EV_MULTIPLICITY |
2104 | |
2564 | |
2105 | struct ev_loop * ecb_cold |
2565 | struct ev_loop * ecb_cold |
2106 | ev_loop_new (unsigned int flags) |
2566 | ev_loop_new (unsigned int flags) EV_THROW |
2107 | { |
2567 | { |
2108 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2568 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2109 | |
2569 | |
2110 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2570 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2111 | loop_init (EV_A_ flags); |
2571 | loop_init (EV_A_ flags); |
… | |
… | |
2155 | } |
2615 | } |
2156 | #endif |
2616 | #endif |
2157 | |
2617 | |
2158 | #if EV_FEATURE_API |
2618 | #if EV_FEATURE_API |
2159 | void ecb_cold |
2619 | void ecb_cold |
2160 | ev_verify (EV_P) |
2620 | ev_verify (EV_P) EV_THROW |
2161 | { |
2621 | { |
2162 | #if EV_VERIFY |
2622 | #if EV_VERIFY |
2163 | int i; |
2623 | int i; |
2164 | WL w; |
2624 | WL w, w2; |
2165 | |
2625 | |
2166 | assert (activecnt >= -1); |
2626 | assert (activecnt >= -1); |
2167 | |
2627 | |
2168 | assert (fdchangemax >= fdchangecnt); |
2628 | assert (fdchangemax >= fdchangecnt); |
2169 | for (i = 0; i < fdchangecnt; ++i) |
2629 | for (i = 0; i < fdchangecnt; ++i) |
2170 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2630 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2171 | |
2631 | |
2172 | assert (anfdmax >= 0); |
2632 | assert (anfdmax >= 0); |
2173 | for (i = 0; i < anfdmax; ++i) |
2633 | for (i = 0; i < anfdmax; ++i) |
|
|
2634 | { |
|
|
2635 | int j = 0; |
|
|
2636 | |
2174 | for (w = anfds [i].head; w; w = w->next) |
2637 | for (w = w2 = anfds [i].head; w; w = w->next) |
2175 | { |
2638 | { |
2176 | verify_watcher (EV_A_ (W)w); |
2639 | verify_watcher (EV_A_ (W)w); |
|
|
2640 | |
|
|
2641 | if (j++ & 1) |
|
|
2642 | { |
|
|
2643 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2644 | w2 = w2->next; |
|
|
2645 | } |
|
|
2646 | |
2177 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2647 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2178 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2648 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2179 | } |
2649 | } |
|
|
2650 | } |
2180 | |
2651 | |
2181 | assert (timermax >= timercnt); |
2652 | assert (timermax >= timercnt); |
2182 | verify_heap (EV_A_ timers, timercnt); |
2653 | verify_heap (EV_A_ timers, timercnt); |
2183 | |
2654 | |
2184 | #if EV_PERIODIC_ENABLE |
2655 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2234 | #if EV_MULTIPLICITY |
2705 | #if EV_MULTIPLICITY |
2235 | struct ev_loop * ecb_cold |
2706 | struct ev_loop * ecb_cold |
2236 | #else |
2707 | #else |
2237 | int |
2708 | int |
2238 | #endif |
2709 | #endif |
2239 | ev_default_loop (unsigned int flags) |
2710 | ev_default_loop (unsigned int flags) EV_THROW |
2240 | { |
2711 | { |
2241 | if (!ev_default_loop_ptr) |
2712 | if (!ev_default_loop_ptr) |
2242 | { |
2713 | { |
2243 | #if EV_MULTIPLICITY |
2714 | #if EV_MULTIPLICITY |
2244 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2715 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2263 | |
2734 | |
2264 | return ev_default_loop_ptr; |
2735 | return ev_default_loop_ptr; |
2265 | } |
2736 | } |
2266 | |
2737 | |
2267 | void |
2738 | void |
2268 | ev_loop_fork (EV_P) |
2739 | ev_loop_fork (EV_P) EV_THROW |
2269 | { |
2740 | { |
2270 | postfork = 1; /* must be in line with ev_default_fork */ |
2741 | postfork = 1; |
2271 | } |
2742 | } |
2272 | |
2743 | |
2273 | /*****************************************************************************/ |
2744 | /*****************************************************************************/ |
2274 | |
2745 | |
2275 | void |
2746 | void |
… | |
… | |
2277 | { |
2748 | { |
2278 | EV_CB_INVOKE ((W)w, revents); |
2749 | EV_CB_INVOKE ((W)w, revents); |
2279 | } |
2750 | } |
2280 | |
2751 | |
2281 | unsigned int |
2752 | unsigned int |
2282 | ev_pending_count (EV_P) |
2753 | ev_pending_count (EV_P) EV_THROW |
2283 | { |
2754 | { |
2284 | int pri; |
2755 | int pri; |
2285 | unsigned int count = 0; |
2756 | unsigned int count = 0; |
2286 | |
2757 | |
2287 | for (pri = NUMPRI; pri--; ) |
2758 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2291 | } |
2762 | } |
2292 | |
2763 | |
2293 | void noinline |
2764 | void noinline |
2294 | ev_invoke_pending (EV_P) |
2765 | ev_invoke_pending (EV_P) |
2295 | { |
2766 | { |
2296 | int pri; |
2767 | pendingpri = NUMPRI; |
2297 | |
2768 | |
2298 | for (pri = NUMPRI; pri--; ) |
2769 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2770 | { |
|
|
2771 | --pendingpri; |
|
|
2772 | |
2299 | while (pendingcnt [pri]) |
2773 | while (pendingcnt [pendingpri]) |
2300 | { |
2774 | { |
2301 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2775 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2302 | |
2776 | |
2303 | p->w->pending = 0; |
2777 | p->w->pending = 0; |
2304 | EV_CB_INVOKE (p->w, p->events); |
2778 | EV_CB_INVOKE (p->w, p->events); |
2305 | EV_FREQUENT_CHECK; |
2779 | EV_FREQUENT_CHECK; |
2306 | } |
2780 | } |
|
|
2781 | } |
2307 | } |
2782 | } |
2308 | |
2783 | |
2309 | #if EV_IDLE_ENABLE |
2784 | #if EV_IDLE_ENABLE |
2310 | /* make idle watchers pending. this handles the "call-idle */ |
2785 | /* make idle watchers pending. this handles the "call-idle */ |
2311 | /* only when higher priorities are idle" logic */ |
2786 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2401 | { |
2876 | { |
2402 | EV_FREQUENT_CHECK; |
2877 | EV_FREQUENT_CHECK; |
2403 | |
2878 | |
2404 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2879 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2405 | { |
2880 | { |
2406 | int feed_count = 0; |
|
|
2407 | |
|
|
2408 | do |
2881 | do |
2409 | { |
2882 | { |
2410 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2883 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2411 | |
2884 | |
2412 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2885 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2546 | |
3019 | |
2547 | mn_now = ev_rt_now; |
3020 | mn_now = ev_rt_now; |
2548 | } |
3021 | } |
2549 | } |
3022 | } |
2550 | |
3023 | |
2551 | void |
3024 | int |
2552 | ev_run (EV_P_ int flags) |
3025 | ev_run (EV_P_ int flags) |
2553 | { |
3026 | { |
2554 | #if EV_FEATURE_API |
3027 | #if EV_FEATURE_API |
2555 | ++loop_depth; |
3028 | ++loop_depth; |
2556 | #endif |
3029 | #endif |
… | |
… | |
2617 | time_update (EV_A_ 1e100); |
3090 | time_update (EV_A_ 1e100); |
2618 | |
3091 | |
2619 | /* from now on, we want a pipe-wake-up */ |
3092 | /* from now on, we want a pipe-wake-up */ |
2620 | pipe_write_wanted = 1; |
3093 | pipe_write_wanted = 1; |
2621 | |
3094 | |
2622 | ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */ |
3095 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
2623 | |
3096 | |
2624 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3097 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2625 | { |
3098 | { |
2626 | waittime = MAX_BLOCKTIME; |
3099 | waittime = MAX_BLOCKTIME; |
2627 | |
3100 | |
… | |
… | |
2669 | #endif |
3142 | #endif |
2670 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3143 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2671 | backend_poll (EV_A_ waittime); |
3144 | backend_poll (EV_A_ waittime); |
2672 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3145 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2673 | |
3146 | |
2674 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
3147 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2675 | |
3148 | |
|
|
3149 | ECB_MEMORY_FENCE_ACQUIRE; |
2676 | if (pipe_write_skipped) |
3150 | if (pipe_write_skipped) |
2677 | { |
3151 | { |
2678 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3152 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
2679 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3153 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2680 | } |
3154 | } |
… | |
… | |
2713 | loop_done = EVBREAK_CANCEL; |
3187 | loop_done = EVBREAK_CANCEL; |
2714 | |
3188 | |
2715 | #if EV_FEATURE_API |
3189 | #if EV_FEATURE_API |
2716 | --loop_depth; |
3190 | --loop_depth; |
2717 | #endif |
3191 | #endif |
|
|
3192 | |
|
|
3193 | return activecnt; |
2718 | } |
3194 | } |
2719 | |
3195 | |
2720 | void |
3196 | void |
2721 | ev_break (EV_P_ int how) |
3197 | ev_break (EV_P_ int how) EV_THROW |
2722 | { |
3198 | { |
2723 | loop_done = how; |
3199 | loop_done = how; |
2724 | } |
3200 | } |
2725 | |
3201 | |
2726 | void |
3202 | void |
2727 | ev_ref (EV_P) |
3203 | ev_ref (EV_P) EV_THROW |
2728 | { |
3204 | { |
2729 | ++activecnt; |
3205 | ++activecnt; |
2730 | } |
3206 | } |
2731 | |
3207 | |
2732 | void |
3208 | void |
2733 | ev_unref (EV_P) |
3209 | ev_unref (EV_P) EV_THROW |
2734 | { |
3210 | { |
2735 | --activecnt; |
3211 | --activecnt; |
2736 | } |
3212 | } |
2737 | |
3213 | |
2738 | void |
3214 | void |
2739 | ev_now_update (EV_P) |
3215 | ev_now_update (EV_P) EV_THROW |
2740 | { |
3216 | { |
2741 | time_update (EV_A_ 1e100); |
3217 | time_update (EV_A_ 1e100); |
2742 | } |
3218 | } |
2743 | |
3219 | |
2744 | void |
3220 | void |
2745 | ev_suspend (EV_P) |
3221 | ev_suspend (EV_P) EV_THROW |
2746 | { |
3222 | { |
2747 | ev_now_update (EV_A); |
3223 | ev_now_update (EV_A); |
2748 | } |
3224 | } |
2749 | |
3225 | |
2750 | void |
3226 | void |
2751 | ev_resume (EV_P) |
3227 | ev_resume (EV_P) EV_THROW |
2752 | { |
3228 | { |
2753 | ev_tstamp mn_prev = mn_now; |
3229 | ev_tstamp mn_prev = mn_now; |
2754 | |
3230 | |
2755 | ev_now_update (EV_A); |
3231 | ev_now_update (EV_A); |
2756 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3232 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2795 | w->pending = 0; |
3271 | w->pending = 0; |
2796 | } |
3272 | } |
2797 | } |
3273 | } |
2798 | |
3274 | |
2799 | int |
3275 | int |
2800 | ev_clear_pending (EV_P_ void *w) |
3276 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2801 | { |
3277 | { |
2802 | W w_ = (W)w; |
3278 | W w_ = (W)w; |
2803 | int pending = w_->pending; |
3279 | int pending = w_->pending; |
2804 | |
3280 | |
2805 | if (expect_true (pending)) |
3281 | if (expect_true (pending)) |
… | |
… | |
2838 | } |
3314 | } |
2839 | |
3315 | |
2840 | /*****************************************************************************/ |
3316 | /*****************************************************************************/ |
2841 | |
3317 | |
2842 | void noinline |
3318 | void noinline |
2843 | ev_io_start (EV_P_ ev_io *w) |
3319 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2844 | { |
3320 | { |
2845 | int fd = w->fd; |
3321 | int fd = w->fd; |
2846 | |
3322 | |
2847 | if (expect_false (ev_is_active (w))) |
3323 | if (expect_false (ev_is_active (w))) |
2848 | return; |
3324 | return; |
… | |
… | |
2854 | |
3330 | |
2855 | ev_start (EV_A_ (W)w, 1); |
3331 | ev_start (EV_A_ (W)w, 1); |
2856 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3332 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2857 | wlist_add (&anfds[fd].head, (WL)w); |
3333 | wlist_add (&anfds[fd].head, (WL)w); |
2858 | |
3334 | |
|
|
3335 | /* common bug, apparently */ |
|
|
3336 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3337 | |
2859 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3338 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2860 | w->events &= ~EV__IOFDSET; |
3339 | w->events &= ~EV__IOFDSET; |
2861 | |
3340 | |
2862 | EV_FREQUENT_CHECK; |
3341 | EV_FREQUENT_CHECK; |
2863 | } |
3342 | } |
2864 | |
3343 | |
2865 | void noinline |
3344 | void noinline |
2866 | ev_io_stop (EV_P_ ev_io *w) |
3345 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2867 | { |
3346 | { |
2868 | clear_pending (EV_A_ (W)w); |
3347 | clear_pending (EV_A_ (W)w); |
2869 | if (expect_false (!ev_is_active (w))) |
3348 | if (expect_false (!ev_is_active (w))) |
2870 | return; |
3349 | return; |
2871 | |
3350 | |
… | |
… | |
2880 | |
3359 | |
2881 | EV_FREQUENT_CHECK; |
3360 | EV_FREQUENT_CHECK; |
2882 | } |
3361 | } |
2883 | |
3362 | |
2884 | void noinline |
3363 | void noinline |
2885 | ev_timer_start (EV_P_ ev_timer *w) |
3364 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2886 | { |
3365 | { |
2887 | if (expect_false (ev_is_active (w))) |
3366 | if (expect_false (ev_is_active (w))) |
2888 | return; |
3367 | return; |
2889 | |
3368 | |
2890 | ev_at (w) += mn_now; |
3369 | ev_at (w) += mn_now; |
… | |
… | |
2904 | |
3383 | |
2905 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3384 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2906 | } |
3385 | } |
2907 | |
3386 | |
2908 | void noinline |
3387 | void noinline |
2909 | ev_timer_stop (EV_P_ ev_timer *w) |
3388 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2910 | { |
3389 | { |
2911 | clear_pending (EV_A_ (W)w); |
3390 | clear_pending (EV_A_ (W)w); |
2912 | if (expect_false (!ev_is_active (w))) |
3391 | if (expect_false (!ev_is_active (w))) |
2913 | return; |
3392 | return; |
2914 | |
3393 | |
… | |
… | |
2934 | |
3413 | |
2935 | EV_FREQUENT_CHECK; |
3414 | EV_FREQUENT_CHECK; |
2936 | } |
3415 | } |
2937 | |
3416 | |
2938 | void noinline |
3417 | void noinline |
2939 | ev_timer_again (EV_P_ ev_timer *w) |
3418 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2940 | { |
3419 | { |
2941 | EV_FREQUENT_CHECK; |
3420 | EV_FREQUENT_CHECK; |
|
|
3421 | |
|
|
3422 | clear_pending (EV_A_ (W)w); |
2942 | |
3423 | |
2943 | if (ev_is_active (w)) |
3424 | if (ev_is_active (w)) |
2944 | { |
3425 | { |
2945 | if (w->repeat) |
3426 | if (w->repeat) |
2946 | { |
3427 | { |
… | |
… | |
2959 | |
3440 | |
2960 | EV_FREQUENT_CHECK; |
3441 | EV_FREQUENT_CHECK; |
2961 | } |
3442 | } |
2962 | |
3443 | |
2963 | ev_tstamp |
3444 | ev_tstamp |
2964 | ev_timer_remaining (EV_P_ ev_timer *w) |
3445 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2965 | { |
3446 | { |
2966 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3447 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2967 | } |
3448 | } |
2968 | |
3449 | |
2969 | #if EV_PERIODIC_ENABLE |
3450 | #if EV_PERIODIC_ENABLE |
2970 | void noinline |
3451 | void noinline |
2971 | ev_periodic_start (EV_P_ ev_periodic *w) |
3452 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2972 | { |
3453 | { |
2973 | if (expect_false (ev_is_active (w))) |
3454 | if (expect_false (ev_is_active (w))) |
2974 | return; |
3455 | return; |
2975 | |
3456 | |
2976 | if (w->reschedule_cb) |
3457 | if (w->reschedule_cb) |
… | |
… | |
2996 | |
3477 | |
2997 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3478 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2998 | } |
3479 | } |
2999 | |
3480 | |
3000 | void noinline |
3481 | void noinline |
3001 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3482 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3002 | { |
3483 | { |
3003 | clear_pending (EV_A_ (W)w); |
3484 | clear_pending (EV_A_ (W)w); |
3004 | if (expect_false (!ev_is_active (w))) |
3485 | if (expect_false (!ev_is_active (w))) |
3005 | return; |
3486 | return; |
3006 | |
3487 | |
… | |
… | |
3024 | |
3505 | |
3025 | EV_FREQUENT_CHECK; |
3506 | EV_FREQUENT_CHECK; |
3026 | } |
3507 | } |
3027 | |
3508 | |
3028 | void noinline |
3509 | void noinline |
3029 | ev_periodic_again (EV_P_ ev_periodic *w) |
3510 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3030 | { |
3511 | { |
3031 | /* TODO: use adjustheap and recalculation */ |
3512 | /* TODO: use adjustheap and recalculation */ |
3032 | ev_periodic_stop (EV_A_ w); |
3513 | ev_periodic_stop (EV_A_ w); |
3033 | ev_periodic_start (EV_A_ w); |
3514 | ev_periodic_start (EV_A_ w); |
3034 | } |
3515 | } |
… | |
… | |
3039 | #endif |
3520 | #endif |
3040 | |
3521 | |
3041 | #if EV_SIGNAL_ENABLE |
3522 | #if EV_SIGNAL_ENABLE |
3042 | |
3523 | |
3043 | void noinline |
3524 | void noinline |
3044 | ev_signal_start (EV_P_ ev_signal *w) |
3525 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3045 | { |
3526 | { |
3046 | if (expect_false (ev_is_active (w))) |
3527 | if (expect_false (ev_is_active (w))) |
3047 | return; |
3528 | return; |
3048 | |
3529 | |
3049 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3530 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3120 | |
3601 | |
3121 | EV_FREQUENT_CHECK; |
3602 | EV_FREQUENT_CHECK; |
3122 | } |
3603 | } |
3123 | |
3604 | |
3124 | void noinline |
3605 | void noinline |
3125 | ev_signal_stop (EV_P_ ev_signal *w) |
3606 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3126 | { |
3607 | { |
3127 | clear_pending (EV_A_ (W)w); |
3608 | clear_pending (EV_A_ (W)w); |
3128 | if (expect_false (!ev_is_active (w))) |
3609 | if (expect_false (!ev_is_active (w))) |
3129 | return; |
3610 | return; |
3130 | |
3611 | |
… | |
… | |
3161 | #endif |
3642 | #endif |
3162 | |
3643 | |
3163 | #if EV_CHILD_ENABLE |
3644 | #if EV_CHILD_ENABLE |
3164 | |
3645 | |
3165 | void |
3646 | void |
3166 | ev_child_start (EV_P_ ev_child *w) |
3647 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3167 | { |
3648 | { |
3168 | #if EV_MULTIPLICITY |
3649 | #if EV_MULTIPLICITY |
3169 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3650 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3170 | #endif |
3651 | #endif |
3171 | if (expect_false (ev_is_active (w))) |
3652 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3178 | |
3659 | |
3179 | EV_FREQUENT_CHECK; |
3660 | EV_FREQUENT_CHECK; |
3180 | } |
3661 | } |
3181 | |
3662 | |
3182 | void |
3663 | void |
3183 | ev_child_stop (EV_P_ ev_child *w) |
3664 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3184 | { |
3665 | { |
3185 | clear_pending (EV_A_ (W)w); |
3666 | clear_pending (EV_A_ (W)w); |
3186 | if (expect_false (!ev_is_active (w))) |
3667 | if (expect_false (!ev_is_active (w))) |
3187 | return; |
3668 | return; |
3188 | |
3669 | |
… | |
… | |
3355 | } |
3836 | } |
3356 | |
3837 | |
3357 | inline_size int |
3838 | inline_size int |
3358 | infy_newfd (void) |
3839 | infy_newfd (void) |
3359 | { |
3840 | { |
3360 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3841 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3361 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3842 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3362 | if (fd >= 0) |
3843 | if (fd >= 0) |
3363 | return fd; |
3844 | return fd; |
3364 | #endif |
3845 | #endif |
3365 | return inotify_init (); |
3846 | return inotify_init (); |
… | |
… | |
3440 | #else |
3921 | #else |
3441 | # define EV_LSTAT(p,b) lstat (p, b) |
3922 | # define EV_LSTAT(p,b) lstat (p, b) |
3442 | #endif |
3923 | #endif |
3443 | |
3924 | |
3444 | void |
3925 | void |
3445 | ev_stat_stat (EV_P_ ev_stat *w) |
3926 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3446 | { |
3927 | { |
3447 | if (lstat (w->path, &w->attr) < 0) |
3928 | if (lstat (w->path, &w->attr) < 0) |
3448 | w->attr.st_nlink = 0; |
3929 | w->attr.st_nlink = 0; |
3449 | else if (!w->attr.st_nlink) |
3930 | else if (!w->attr.st_nlink) |
3450 | w->attr.st_nlink = 1; |
3931 | w->attr.st_nlink = 1; |
… | |
… | |
3489 | ev_feed_event (EV_A_ w, EV_STAT); |
3970 | ev_feed_event (EV_A_ w, EV_STAT); |
3490 | } |
3971 | } |
3491 | } |
3972 | } |
3492 | |
3973 | |
3493 | void |
3974 | void |
3494 | ev_stat_start (EV_P_ ev_stat *w) |
3975 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3495 | { |
3976 | { |
3496 | if (expect_false (ev_is_active (w))) |
3977 | if (expect_false (ev_is_active (w))) |
3497 | return; |
3978 | return; |
3498 | |
3979 | |
3499 | ev_stat_stat (EV_A_ w); |
3980 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3520 | |
4001 | |
3521 | EV_FREQUENT_CHECK; |
4002 | EV_FREQUENT_CHECK; |
3522 | } |
4003 | } |
3523 | |
4004 | |
3524 | void |
4005 | void |
3525 | ev_stat_stop (EV_P_ ev_stat *w) |
4006 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3526 | { |
4007 | { |
3527 | clear_pending (EV_A_ (W)w); |
4008 | clear_pending (EV_A_ (W)w); |
3528 | if (expect_false (!ev_is_active (w))) |
4009 | if (expect_false (!ev_is_active (w))) |
3529 | return; |
4010 | return; |
3530 | |
4011 | |
… | |
… | |
3546 | } |
4027 | } |
3547 | #endif |
4028 | #endif |
3548 | |
4029 | |
3549 | #if EV_IDLE_ENABLE |
4030 | #if EV_IDLE_ENABLE |
3550 | void |
4031 | void |
3551 | ev_idle_start (EV_P_ ev_idle *w) |
4032 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3552 | { |
4033 | { |
3553 | if (expect_false (ev_is_active (w))) |
4034 | if (expect_false (ev_is_active (w))) |
3554 | return; |
4035 | return; |
3555 | |
4036 | |
3556 | pri_adjust (EV_A_ (W)w); |
4037 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3569 | |
4050 | |
3570 | EV_FREQUENT_CHECK; |
4051 | EV_FREQUENT_CHECK; |
3571 | } |
4052 | } |
3572 | |
4053 | |
3573 | void |
4054 | void |
3574 | ev_idle_stop (EV_P_ ev_idle *w) |
4055 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3575 | { |
4056 | { |
3576 | clear_pending (EV_A_ (W)w); |
4057 | clear_pending (EV_A_ (W)w); |
3577 | if (expect_false (!ev_is_active (w))) |
4058 | if (expect_false (!ev_is_active (w))) |
3578 | return; |
4059 | return; |
3579 | |
4060 | |
… | |
… | |
3593 | } |
4074 | } |
3594 | #endif |
4075 | #endif |
3595 | |
4076 | |
3596 | #if EV_PREPARE_ENABLE |
4077 | #if EV_PREPARE_ENABLE |
3597 | void |
4078 | void |
3598 | ev_prepare_start (EV_P_ ev_prepare *w) |
4079 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3599 | { |
4080 | { |
3600 | if (expect_false (ev_is_active (w))) |
4081 | if (expect_false (ev_is_active (w))) |
3601 | return; |
4082 | return; |
3602 | |
4083 | |
3603 | EV_FREQUENT_CHECK; |
4084 | EV_FREQUENT_CHECK; |
… | |
… | |
3608 | |
4089 | |
3609 | EV_FREQUENT_CHECK; |
4090 | EV_FREQUENT_CHECK; |
3610 | } |
4091 | } |
3611 | |
4092 | |
3612 | void |
4093 | void |
3613 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4094 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3614 | { |
4095 | { |
3615 | clear_pending (EV_A_ (W)w); |
4096 | clear_pending (EV_A_ (W)w); |
3616 | if (expect_false (!ev_is_active (w))) |
4097 | if (expect_false (!ev_is_active (w))) |
3617 | return; |
4098 | return; |
3618 | |
4099 | |
… | |
… | |
3631 | } |
4112 | } |
3632 | #endif |
4113 | #endif |
3633 | |
4114 | |
3634 | #if EV_CHECK_ENABLE |
4115 | #if EV_CHECK_ENABLE |
3635 | void |
4116 | void |
3636 | ev_check_start (EV_P_ ev_check *w) |
4117 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3637 | { |
4118 | { |
3638 | if (expect_false (ev_is_active (w))) |
4119 | if (expect_false (ev_is_active (w))) |
3639 | return; |
4120 | return; |
3640 | |
4121 | |
3641 | EV_FREQUENT_CHECK; |
4122 | EV_FREQUENT_CHECK; |
… | |
… | |
3646 | |
4127 | |
3647 | EV_FREQUENT_CHECK; |
4128 | EV_FREQUENT_CHECK; |
3648 | } |
4129 | } |
3649 | |
4130 | |
3650 | void |
4131 | void |
3651 | ev_check_stop (EV_P_ ev_check *w) |
4132 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3652 | { |
4133 | { |
3653 | clear_pending (EV_A_ (W)w); |
4134 | clear_pending (EV_A_ (W)w); |
3654 | if (expect_false (!ev_is_active (w))) |
4135 | if (expect_false (!ev_is_active (w))) |
3655 | return; |
4136 | return; |
3656 | |
4137 | |
… | |
… | |
3669 | } |
4150 | } |
3670 | #endif |
4151 | #endif |
3671 | |
4152 | |
3672 | #if EV_EMBED_ENABLE |
4153 | #if EV_EMBED_ENABLE |
3673 | void noinline |
4154 | void noinline |
3674 | ev_embed_sweep (EV_P_ ev_embed *w) |
4155 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3675 | { |
4156 | { |
3676 | ev_run (w->other, EVRUN_NOWAIT); |
4157 | ev_run (w->other, EVRUN_NOWAIT); |
3677 | } |
4158 | } |
3678 | |
4159 | |
3679 | static void |
4160 | static void |
… | |
… | |
3727 | ev_idle_stop (EV_A_ idle); |
4208 | ev_idle_stop (EV_A_ idle); |
3728 | } |
4209 | } |
3729 | #endif |
4210 | #endif |
3730 | |
4211 | |
3731 | void |
4212 | void |
3732 | ev_embed_start (EV_P_ ev_embed *w) |
4213 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3733 | { |
4214 | { |
3734 | if (expect_false (ev_is_active (w))) |
4215 | if (expect_false (ev_is_active (w))) |
3735 | return; |
4216 | return; |
3736 | |
4217 | |
3737 | { |
4218 | { |
… | |
… | |
3758 | |
4239 | |
3759 | EV_FREQUENT_CHECK; |
4240 | EV_FREQUENT_CHECK; |
3760 | } |
4241 | } |
3761 | |
4242 | |
3762 | void |
4243 | void |
3763 | ev_embed_stop (EV_P_ ev_embed *w) |
4244 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3764 | { |
4245 | { |
3765 | clear_pending (EV_A_ (W)w); |
4246 | clear_pending (EV_A_ (W)w); |
3766 | if (expect_false (!ev_is_active (w))) |
4247 | if (expect_false (!ev_is_active (w))) |
3767 | return; |
4248 | return; |
3768 | |
4249 | |
… | |
… | |
3778 | } |
4259 | } |
3779 | #endif |
4260 | #endif |
3780 | |
4261 | |
3781 | #if EV_FORK_ENABLE |
4262 | #if EV_FORK_ENABLE |
3782 | void |
4263 | void |
3783 | ev_fork_start (EV_P_ ev_fork *w) |
4264 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3784 | { |
4265 | { |
3785 | if (expect_false (ev_is_active (w))) |
4266 | if (expect_false (ev_is_active (w))) |
3786 | return; |
4267 | return; |
3787 | |
4268 | |
3788 | EV_FREQUENT_CHECK; |
4269 | EV_FREQUENT_CHECK; |
… | |
… | |
3793 | |
4274 | |
3794 | EV_FREQUENT_CHECK; |
4275 | EV_FREQUENT_CHECK; |
3795 | } |
4276 | } |
3796 | |
4277 | |
3797 | void |
4278 | void |
3798 | ev_fork_stop (EV_P_ ev_fork *w) |
4279 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3799 | { |
4280 | { |
3800 | clear_pending (EV_A_ (W)w); |
4281 | clear_pending (EV_A_ (W)w); |
3801 | if (expect_false (!ev_is_active (w))) |
4282 | if (expect_false (!ev_is_active (w))) |
3802 | return; |
4283 | return; |
3803 | |
4284 | |
… | |
… | |
3816 | } |
4297 | } |
3817 | #endif |
4298 | #endif |
3818 | |
4299 | |
3819 | #if EV_CLEANUP_ENABLE |
4300 | #if EV_CLEANUP_ENABLE |
3820 | void |
4301 | void |
3821 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4302 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3822 | { |
4303 | { |
3823 | if (expect_false (ev_is_active (w))) |
4304 | if (expect_false (ev_is_active (w))) |
3824 | return; |
4305 | return; |
3825 | |
4306 | |
3826 | EV_FREQUENT_CHECK; |
4307 | EV_FREQUENT_CHECK; |
… | |
… | |
3833 | ev_unref (EV_A); |
4314 | ev_unref (EV_A); |
3834 | EV_FREQUENT_CHECK; |
4315 | EV_FREQUENT_CHECK; |
3835 | } |
4316 | } |
3836 | |
4317 | |
3837 | void |
4318 | void |
3838 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4319 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3839 | { |
4320 | { |
3840 | clear_pending (EV_A_ (W)w); |
4321 | clear_pending (EV_A_ (W)w); |
3841 | if (expect_false (!ev_is_active (w))) |
4322 | if (expect_false (!ev_is_active (w))) |
3842 | return; |
4323 | return; |
3843 | |
4324 | |
… | |
… | |
3857 | } |
4338 | } |
3858 | #endif |
4339 | #endif |
3859 | |
4340 | |
3860 | #if EV_ASYNC_ENABLE |
4341 | #if EV_ASYNC_ENABLE |
3861 | void |
4342 | void |
3862 | ev_async_start (EV_P_ ev_async *w) |
4343 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3863 | { |
4344 | { |
3864 | if (expect_false (ev_is_active (w))) |
4345 | if (expect_false (ev_is_active (w))) |
3865 | return; |
4346 | return; |
3866 | |
4347 | |
3867 | w->sent = 0; |
4348 | w->sent = 0; |
… | |
… | |
3876 | |
4357 | |
3877 | EV_FREQUENT_CHECK; |
4358 | EV_FREQUENT_CHECK; |
3878 | } |
4359 | } |
3879 | |
4360 | |
3880 | void |
4361 | void |
3881 | ev_async_stop (EV_P_ ev_async *w) |
4362 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3882 | { |
4363 | { |
3883 | clear_pending (EV_A_ (W)w); |
4364 | clear_pending (EV_A_ (W)w); |
3884 | if (expect_false (!ev_is_active (w))) |
4365 | if (expect_false (!ev_is_active (w))) |
3885 | return; |
4366 | return; |
3886 | |
4367 | |
… | |
… | |
3897 | |
4378 | |
3898 | EV_FREQUENT_CHECK; |
4379 | EV_FREQUENT_CHECK; |
3899 | } |
4380 | } |
3900 | |
4381 | |
3901 | void |
4382 | void |
3902 | ev_async_send (EV_P_ ev_async *w) |
4383 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3903 | { |
4384 | { |
3904 | w->sent = 1; |
4385 | w->sent = 1; |
3905 | evpipe_write (EV_A_ &async_pending); |
4386 | evpipe_write (EV_A_ &async_pending); |
3906 | } |
4387 | } |
3907 | #endif |
4388 | #endif |
… | |
… | |
3944 | |
4425 | |
3945 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4426 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3946 | } |
4427 | } |
3947 | |
4428 | |
3948 | void |
4429 | void |
3949 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4430 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3950 | { |
4431 | { |
3951 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4432 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3952 | |
4433 | |
3953 | if (expect_false (!once)) |
4434 | if (expect_false (!once)) |
3954 | { |
4435 | { |
… | |
… | |
3976 | |
4457 | |
3977 | /*****************************************************************************/ |
4458 | /*****************************************************************************/ |
3978 | |
4459 | |
3979 | #if EV_WALK_ENABLE |
4460 | #if EV_WALK_ENABLE |
3980 | void ecb_cold |
4461 | void ecb_cold |
3981 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4462 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3982 | { |
4463 | { |
3983 | int i, j; |
4464 | int i, j; |
3984 | ev_watcher_list *wl, *wn; |
4465 | ev_watcher_list *wl, *wn; |
3985 | |
4466 | |
3986 | if (types & (EV_IO | EV_EMBED)) |
4467 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
4029 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4510 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4030 | #endif |
4511 | #endif |
4031 | |
4512 | |
4032 | #if EV_IDLE_ENABLE |
4513 | #if EV_IDLE_ENABLE |
4033 | if (types & EV_IDLE) |
4514 | if (types & EV_IDLE) |
4034 | for (j = NUMPRI; i--; ) |
4515 | for (j = NUMPRI; j--; ) |
4035 | for (i = idlecnt [j]; i--; ) |
4516 | for (i = idlecnt [j]; i--; ) |
4036 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4517 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4037 | #endif |
4518 | #endif |
4038 | |
4519 | |
4039 | #if EV_FORK_ENABLE |
4520 | #if EV_FORK_ENABLE |
… | |
… | |
4092 | |
4573 | |
4093 | #if EV_MULTIPLICITY |
4574 | #if EV_MULTIPLICITY |
4094 | #include "ev_wrap.h" |
4575 | #include "ev_wrap.h" |
4095 | #endif |
4576 | #endif |
4096 | |
4577 | |
4097 | EV_CPP(}) |
|
|
4098 | |
|
|