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 | |
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475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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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; |
469 | #if __GNUC__ >= 4 |
519 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
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; |
472 | #else |
536 | #else |
473 | # define expect(expr,value) (expr) |
537 | #include <inttypes.h> |
474 | # define noinline |
538 | #if UINTMAX_MAX > 0xffffffffU |
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
539 | #define ECB_PTRSIZE 8 |
476 | # define inline |
540 | #else |
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541 | #define ECB_PTRSIZE 4 |
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542 | #endif |
477 | # endif |
543 | #endif |
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544 | |
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545 | /* many compilers define _GNUC_ to some versions but then only implement |
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546 | * what their idiot authors think are the "more important" extensions, |
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547 | * causing enormous grief in return for some better fake benchmark numbers. |
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548 | * or so. |
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549 | * we try to detect these and simply assume they are not gcc - if they have |
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550 | * an issue with that they should have done it right in the first place. |
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551 | */ |
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552 | #ifndef ECB_GCC_VERSION |
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553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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554 | #define ECB_GCC_VERSION(major,minor) 0 |
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555 | #else |
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556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
478 | #endif |
557 | #endif |
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558 | #endif |
479 | |
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 |
|
|
660 | /* |
|
|
661 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
662 | * or failure to find pthread.h, then you should implement |
|
|
663 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
664 | * OR provide pthread.h and link against the posix thread library |
|
|
665 | * of your system. |
|
|
666 | */ |
|
|
667 | #include <pthread.h> |
|
|
668 | #define ECB_NEEDS_PTHREADS 1 |
|
|
669 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
670 | |
|
|
671 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
672 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
673 | #endif |
|
|
674 | #endif |
|
|
675 | |
|
|
676 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
677 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
681 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | /*****************************************************************************/ |
|
|
685 | |
|
|
686 | #if __cplusplus |
|
|
687 | #define ecb_inline static inline |
|
|
688 | #elif ECB_GCC_VERSION(2,5) |
|
|
689 | #define ecb_inline static __inline__ |
|
|
690 | #elif ECB_C99 |
|
|
691 | #define ecb_inline static inline |
|
|
692 | #else |
|
|
693 | #define ecb_inline static |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | #if ECB_GCC_VERSION(3,3) |
|
|
697 | #define ecb_restrict __restrict__ |
|
|
698 | #elif ECB_C99 |
|
|
699 | #define ecb_restrict restrict |
|
|
700 | #else |
|
|
701 | #define ecb_restrict |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | typedef int ecb_bool; |
|
|
705 | |
|
|
706 | #define ECB_CONCAT_(a, b) a ## b |
|
|
707 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
708 | #define ECB_STRINGIFY_(a) # a |
|
|
709 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
710 | |
|
|
711 | #define ecb_function_ ecb_inline |
|
|
712 | |
|
|
713 | #if ECB_GCC_VERSION(3,1) |
|
|
714 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
715 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
716 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
717 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
718 | #else |
|
|
719 | #define ecb_attribute(attrlist) |
|
|
720 | #define ecb_is_constant(expr) 0 |
|
|
721 | #define ecb_expect(expr,value) (expr) |
|
|
722 | #define ecb_prefetch(addr,rw,locality) |
|
|
723 | #endif |
|
|
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 | |
|
|
732 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
733 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
734 | #define ecb_const ecb_attribute ((__const__)) |
|
|
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 |
|
|
742 | |
|
|
743 | #if ECB_GCC_VERSION(4,3) |
|
|
744 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
745 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
746 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
747 | #else |
|
|
748 | #define ecb_artificial |
|
|
749 | #define ecb_hot |
|
|
750 | #define ecb_cold |
|
|
751 | #endif |
|
|
752 | |
|
|
753 | /* put around conditional expressions if you are very sure that the */ |
|
|
754 | /* expression is mostly true or mostly false. note that these return */ |
|
|
755 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
756 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
757 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
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) |
|
|
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; |
|
|
773 | ecb_function_ int |
|
|
774 | ecb_ctz32 (uint32_t x) |
|
|
775 | { |
|
|
776 | int r = 0; |
|
|
777 | |
|
|
778 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
779 | |
|
|
780 | #if ECB_branchless_on_i386 |
|
|
781 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
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 |
|
|
1008 | |
|
|
1009 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1010 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1011 | #define noinline ecb_noinline |
|
|
1012 | |
482 | #define inline_size static inline |
1013 | #define inline_size ecb_inline |
483 | |
1014 | |
484 | #if EV_FEATURE_CODE |
1015 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
1016 | # define inline_speed ecb_inline |
486 | #else |
1017 | #else |
487 | # define inline_speed static noinline |
1018 | # define inline_speed static noinline |
488 | #endif |
1019 | #endif |
489 | |
1020 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1021 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
581 | |
1112 | |
582 | #ifdef __linux |
1113 | #ifdef __linux |
583 | # include <sys/utsname.h> |
1114 | # include <sys/utsname.h> |
584 | #endif |
1115 | #endif |
585 | |
1116 | |
586 | static unsigned int noinline |
1117 | static unsigned int noinline ecb_cold |
587 | ev_linux_version (void) |
1118 | ev_linux_version (void) |
588 | { |
1119 | { |
589 | #ifdef __linux |
1120 | #ifdef __linux |
590 | unsigned int v = 0; |
1121 | unsigned int v = 0; |
591 | struct utsname buf; |
1122 | struct utsname buf; |
… | |
… | |
620 | } |
1151 | } |
621 | |
1152 | |
622 | /*****************************************************************************/ |
1153 | /*****************************************************************************/ |
623 | |
1154 | |
624 | #if EV_AVOID_STDIO |
1155 | #if EV_AVOID_STDIO |
625 | static void noinline |
1156 | static void noinline ecb_cold |
626 | ev_printerr (const char *msg) |
1157 | ev_printerr (const char *msg) |
627 | { |
1158 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1159 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1160 | } |
630 | #endif |
1161 | #endif |
631 | |
1162 | |
632 | static void (*syserr_cb)(const char *msg); |
1163 | static void (*syserr_cb)(const char *msg) EV_THROW; |
633 | |
1164 | |
634 | void |
1165 | void ecb_cold |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1166 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
636 | { |
1167 | { |
637 | syserr_cb = cb; |
1168 | syserr_cb = cb; |
638 | } |
1169 | } |
639 | |
1170 | |
640 | static void noinline |
1171 | static void noinline ecb_cold |
641 | ev_syserr (const char *msg) |
1172 | ev_syserr (const char *msg) |
642 | { |
1173 | { |
643 | if (!msg) |
1174 | if (!msg) |
644 | msg = "(libev) system error"; |
1175 | msg = "(libev) system error"; |
645 | |
1176 | |
… | |
… | |
658 | abort (); |
1189 | abort (); |
659 | } |
1190 | } |
660 | } |
1191 | } |
661 | |
1192 | |
662 | static void * |
1193 | static void * |
663 | ev_realloc_emul (void *ptr, long size) |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
664 | { |
1195 | { |
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
|
|
668 | /* some systems, notably openbsd and darwin, fail to properly |
1196 | /* some systems, notably openbsd and darwin, fail to properly |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
670 | * the single unix specification, so work around them here. |
1198 | * the single unix specification, so work around them here. |
|
|
1199 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1200 | * despite documenting it otherwise. |
671 | */ |
1201 | */ |
672 | |
1202 | |
673 | if (size) |
1203 | if (size) |
674 | return realloc (ptr, size); |
1204 | return realloc (ptr, size); |
675 | |
1205 | |
676 | free (ptr); |
1206 | free (ptr); |
677 | return 0; |
1207 | return 0; |
678 | #endif |
|
|
679 | } |
1208 | } |
680 | |
1209 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1210 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
682 | |
1211 | |
683 | void |
1212 | void ecb_cold |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1213 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
685 | { |
1214 | { |
686 | alloc = cb; |
1215 | alloc = cb; |
687 | } |
1216 | } |
688 | |
1217 | |
689 | inline_speed void * |
1218 | inline_speed void * |
… | |
… | |
777 | #undef VAR |
1306 | #undef VAR |
778 | }; |
1307 | }; |
779 | #include "ev_wrap.h" |
1308 | #include "ev_wrap.h" |
780 | |
1309 | |
781 | static struct ev_loop default_loop_struct; |
1310 | static struct ev_loop default_loop_struct; |
782 | struct ev_loop *ev_default_loop_ptr; |
1311 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
783 | |
1312 | |
784 | #else |
1313 | #else |
785 | |
1314 | |
786 | ev_tstamp ev_rt_now; |
1315 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
787 | #define VAR(name,decl) static decl; |
1316 | #define VAR(name,decl) static decl; |
788 | #include "ev_vars.h" |
1317 | #include "ev_vars.h" |
789 | #undef VAR |
1318 | #undef VAR |
790 | |
1319 | |
791 | static int ev_default_loop_ptr; |
1320 | static int ev_default_loop_ptr; |
… | |
… | |
806 | |
1335 | |
807 | /*****************************************************************************/ |
1336 | /*****************************************************************************/ |
808 | |
1337 | |
809 | #ifndef EV_HAVE_EV_TIME |
1338 | #ifndef EV_HAVE_EV_TIME |
810 | ev_tstamp |
1339 | ev_tstamp |
811 | ev_time (void) |
1340 | ev_time (void) EV_THROW |
812 | { |
1341 | { |
813 | #if EV_USE_REALTIME |
1342 | #if EV_USE_REALTIME |
814 | if (expect_true (have_realtime)) |
1343 | if (expect_true (have_realtime)) |
815 | { |
1344 | { |
816 | struct timespec ts; |
1345 | struct timespec ts; |
… | |
… | |
840 | return ev_time (); |
1369 | return ev_time (); |
841 | } |
1370 | } |
842 | |
1371 | |
843 | #if EV_MULTIPLICITY |
1372 | #if EV_MULTIPLICITY |
844 | ev_tstamp |
1373 | ev_tstamp |
845 | ev_now (EV_P) |
1374 | ev_now (EV_P) EV_THROW |
846 | { |
1375 | { |
847 | return ev_rt_now; |
1376 | return ev_rt_now; |
848 | } |
1377 | } |
849 | #endif |
1378 | #endif |
850 | |
1379 | |
851 | void |
1380 | void |
852 | ev_sleep (ev_tstamp delay) |
1381 | ev_sleep (ev_tstamp delay) EV_THROW |
853 | { |
1382 | { |
854 | if (delay > 0.) |
1383 | if (delay > 0.) |
855 | { |
1384 | { |
856 | #if EV_USE_NANOSLEEP |
1385 | #if EV_USE_NANOSLEEP |
857 | struct timespec ts; |
1386 | struct timespec ts; |
858 | |
1387 | |
859 | EV_TS_SET (ts, delay); |
1388 | EV_TS_SET (ts, delay); |
860 | nanosleep (&ts, 0); |
1389 | nanosleep (&ts, 0); |
861 | #elif defined(_WIN32) |
1390 | #elif defined _WIN32 |
862 | Sleep ((unsigned long)(delay * 1e3)); |
1391 | Sleep ((unsigned long)(delay * 1e3)); |
863 | #else |
1392 | #else |
864 | struct timeval tv; |
1393 | struct timeval tv; |
865 | |
1394 | |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1395 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
885 | |
1414 | |
886 | do |
1415 | do |
887 | ncur <<= 1; |
1416 | ncur <<= 1; |
888 | while (cnt > ncur); |
1417 | while (cnt > ncur); |
889 | |
1418 | |
890 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1419 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
891 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1420 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
892 | { |
1421 | { |
893 | ncur *= elem; |
1422 | ncur *= elem; |
894 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1423 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
895 | ncur = ncur - sizeof (void *) * 4; |
1424 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
897 | } |
1426 | } |
898 | |
1427 | |
899 | return ncur; |
1428 | return ncur; |
900 | } |
1429 | } |
901 | |
1430 | |
902 | static noinline void * |
1431 | static void * noinline ecb_cold |
903 | array_realloc (int elem, void *base, int *cur, int cnt) |
1432 | array_realloc (int elem, void *base, int *cur, int cnt) |
904 | { |
1433 | { |
905 | *cur = array_nextsize (elem, *cur, cnt); |
1434 | *cur = array_nextsize (elem, *cur, cnt); |
906 | return ev_realloc (base, elem * *cur); |
1435 | return ev_realloc (base, elem * *cur); |
907 | } |
1436 | } |
… | |
… | |
910 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1439 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
911 | |
1440 | |
912 | #define array_needsize(type,base,cur,cnt,init) \ |
1441 | #define array_needsize(type,base,cur,cnt,init) \ |
913 | if (expect_false ((cnt) > (cur))) \ |
1442 | if (expect_false ((cnt) > (cur))) \ |
914 | { \ |
1443 | { \ |
915 | int ocur_ = (cur); \ |
1444 | int ecb_unused ocur_ = (cur); \ |
916 | (base) = (type *)array_realloc \ |
1445 | (base) = (type *)array_realloc \ |
917 | (sizeof (type), (base), &(cur), (cnt)); \ |
1446 | (sizeof (type), (base), &(cur), (cnt)); \ |
918 | init ((base) + (ocur_), (cur) - ocur_); \ |
1447 | init ((base) + (ocur_), (cur) - ocur_); \ |
919 | } |
1448 | } |
920 | |
1449 | |
… | |
… | |
938 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1467 | pendingcb (EV_P_ ev_prepare *w, int revents) |
939 | { |
1468 | { |
940 | } |
1469 | } |
941 | |
1470 | |
942 | void noinline |
1471 | void noinline |
943 | ev_feed_event (EV_P_ void *w, int revents) |
1472 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
944 | { |
1473 | { |
945 | W w_ = (W)w; |
1474 | W w_ = (W)w; |
946 | int pri = ABSPRI (w_); |
1475 | int pri = ABSPRI (w_); |
947 | |
1476 | |
948 | if (expect_false (w_->pending)) |
1477 | if (expect_false (w_->pending)) |
… | |
… | |
952 | w_->pending = ++pendingcnt [pri]; |
1481 | w_->pending = ++pendingcnt [pri]; |
953 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1482 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
954 | pendings [pri][w_->pending - 1].w = w_; |
1483 | pendings [pri][w_->pending - 1].w = w_; |
955 | pendings [pri][w_->pending - 1].events = revents; |
1484 | pendings [pri][w_->pending - 1].events = revents; |
956 | } |
1485 | } |
|
|
1486 | |
|
|
1487 | pendingpri = NUMPRI - 1; |
957 | } |
1488 | } |
958 | |
1489 | |
959 | inline_speed void |
1490 | inline_speed void |
960 | feed_reverse (EV_P_ W w) |
1491 | feed_reverse (EV_P_ W w) |
961 | { |
1492 | { |
… | |
… | |
1007 | if (expect_true (!anfd->reify)) |
1538 | if (expect_true (!anfd->reify)) |
1008 | fd_event_nocheck (EV_A_ fd, revents); |
1539 | fd_event_nocheck (EV_A_ fd, revents); |
1009 | } |
1540 | } |
1010 | |
1541 | |
1011 | void |
1542 | void |
1012 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1543 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1013 | { |
1544 | { |
1014 | if (fd >= 0 && fd < anfdmax) |
1545 | if (fd >= 0 && fd < anfdmax) |
1015 | fd_event_nocheck (EV_A_ fd, revents); |
1546 | fd_event_nocheck (EV_A_ fd, revents); |
1016 | } |
1547 | } |
1017 | |
1548 | |
… | |
… | |
1090 | fdchanges [fdchangecnt - 1] = fd; |
1621 | fdchanges [fdchangecnt - 1] = fd; |
1091 | } |
1622 | } |
1092 | } |
1623 | } |
1093 | |
1624 | |
1094 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1625 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1095 | inline_speed void |
1626 | inline_speed void ecb_cold |
1096 | fd_kill (EV_P_ int fd) |
1627 | fd_kill (EV_P_ int fd) |
1097 | { |
1628 | { |
1098 | ev_io *w; |
1629 | ev_io *w; |
1099 | |
1630 | |
1100 | while ((w = (ev_io *)anfds [fd].head)) |
1631 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1634 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1104 | } |
1635 | } |
1105 | } |
1636 | } |
1106 | |
1637 | |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
1638 | /* check whether the given fd is actually valid, for error recovery */ |
1108 | inline_size int |
1639 | inline_size int ecb_cold |
1109 | fd_valid (int fd) |
1640 | fd_valid (int fd) |
1110 | { |
1641 | { |
1111 | #ifdef _WIN32 |
1642 | #ifdef _WIN32 |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1643 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1113 | #else |
1644 | #else |
1114 | return fcntl (fd, F_GETFD) != -1; |
1645 | return fcntl (fd, F_GETFD) != -1; |
1115 | #endif |
1646 | #endif |
1116 | } |
1647 | } |
1117 | |
1648 | |
1118 | /* called on EBADF to verify fds */ |
1649 | /* called on EBADF to verify fds */ |
1119 | static void noinline |
1650 | static void noinline ecb_cold |
1120 | fd_ebadf (EV_P) |
1651 | fd_ebadf (EV_P) |
1121 | { |
1652 | { |
1122 | int fd; |
1653 | int fd; |
1123 | |
1654 | |
1124 | for (fd = 0; fd < anfdmax; ++fd) |
1655 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1126 | if (!fd_valid (fd) && errno == EBADF) |
1657 | if (!fd_valid (fd) && errno == EBADF) |
1127 | fd_kill (EV_A_ fd); |
1658 | fd_kill (EV_A_ fd); |
1128 | } |
1659 | } |
1129 | |
1660 | |
1130 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1661 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1131 | static void noinline |
1662 | static void noinline ecb_cold |
1132 | fd_enomem (EV_P) |
1663 | fd_enomem (EV_P) |
1133 | { |
1664 | { |
1134 | int fd; |
1665 | int fd; |
1135 | |
1666 | |
1136 | for (fd = anfdmax; fd--; ) |
1667 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1331 | |
1862 | |
1332 | /*****************************************************************************/ |
1863 | /*****************************************************************************/ |
1333 | |
1864 | |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1865 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1335 | |
1866 | |
1336 | static void noinline |
1867 | static void noinline ecb_cold |
1337 | evpipe_init (EV_P) |
1868 | evpipe_init (EV_P) |
1338 | { |
1869 | { |
1339 | if (!ev_is_active (&pipe_w)) |
1870 | if (!ev_is_active (&pipe_w)) |
1340 | { |
1871 | { |
|
|
1872 | int fds [2]; |
|
|
1873 | |
1341 | # if EV_USE_EVENTFD |
1874 | # if EV_USE_EVENTFD |
|
|
1875 | fds [0] = -1; |
1342 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1876 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1343 | if (evfd < 0 && errno == EINVAL) |
1877 | if (fds [1] < 0 && errno == EINVAL) |
1344 | evfd = eventfd (0, 0); |
1878 | fds [1] = eventfd (0, 0); |
1345 | |
1879 | |
1346 | if (evfd >= 0) |
1880 | if (fds [1] < 0) |
|
|
1881 | # endif |
1347 | { |
1882 | { |
|
|
1883 | while (pipe (fds)) |
|
|
1884 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1885 | |
|
|
1886 | fd_intern (fds [0]); |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | fd_intern (fds [1]); |
|
|
1890 | |
1348 | evpipe [0] = -1; |
1891 | evpipe [0] = fds [0]; |
1349 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1892 | |
1350 | ev_io_set (&pipe_w, evfd, EV_READ); |
1893 | if (evpipe [1] < 0) |
|
|
1894 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
1895 | else |
|
|
1896 | { |
|
|
1897 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
1898 | /* so that evpipe_write can always rely on its value. */ |
|
|
1899 | /* this branch does not do anything sensible on windows, */ |
|
|
1900 | /* so must not be executed on windows */ |
|
|
1901 | |
|
|
1902 | dup2 (fds [1], evpipe [1]); |
|
|
1903 | close (fds [1]); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
1907 | ev_io_start (EV_A_ &pipe_w); |
|
|
1908 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1909 | } |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | inline_speed void |
|
|
1913 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1914 | { |
|
|
1915 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1916 | |
|
|
1917 | if (expect_true (*flag)) |
|
|
1918 | return; |
|
|
1919 | |
|
|
1920 | *flag = 1; |
|
|
1921 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1922 | |
|
|
1923 | pipe_write_skipped = 1; |
|
|
1924 | |
|
|
1925 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1926 | |
|
|
1927 | if (pipe_write_wanted) |
|
|
1928 | { |
|
|
1929 | int old_errno; |
|
|
1930 | |
|
|
1931 | pipe_write_skipped = 0; |
|
|
1932 | ECB_MEMORY_FENCE_RELEASE; |
|
|
1933 | |
|
|
1934 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1935 | |
|
|
1936 | #if EV_USE_EVENTFD |
|
|
1937 | if (evpipe [0] < 0) |
|
|
1938 | { |
|
|
1939 | uint64_t counter = 1; |
|
|
1940 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1351 | } |
1941 | } |
1352 | else |
1942 | else |
1353 | # endif |
1943 | #endif |
1354 | { |
1944 | { |
1355 | while (pipe (evpipe)) |
1945 | #ifdef _WIN32 |
1356 | ev_syserr ("(libev) error creating signal/async pipe"); |
1946 | WSABUF buf; |
1357 | |
1947 | DWORD sent; |
1358 | fd_intern (evpipe [0]); |
1948 | buf.buf = &buf; |
1359 | fd_intern (evpipe [1]); |
1949 | buf.len = 1; |
1360 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1950 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1951 | #else |
|
|
1952 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1953 | #endif |
1361 | } |
1954 | } |
1362 | |
|
|
1363 | ev_io_start (EV_A_ &pipe_w); |
|
|
1364 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1365 | } |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | inline_size void |
|
|
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1370 | { |
|
|
1371 | if (!*flag) |
|
|
1372 | { |
|
|
1373 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1374 | char dummy; |
|
|
1375 | |
|
|
1376 | *flag = 1; |
|
|
1377 | |
|
|
1378 | #if EV_USE_EVENTFD |
|
|
1379 | if (evfd >= 0) |
|
|
1380 | { |
|
|
1381 | uint64_t counter = 1; |
|
|
1382 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1383 | } |
|
|
1384 | else |
|
|
1385 | #endif |
|
|
1386 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1387 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1388 | /* so when you think this write should be a send instead, please find out */ |
|
|
1389 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1390 | /* tell me. thank you. */ |
|
|
1391 | write (evpipe [1], &dummy, 1); |
|
|
1392 | |
1955 | |
1393 | errno = old_errno; |
1956 | errno = old_errno; |
1394 | } |
1957 | } |
1395 | } |
1958 | } |
1396 | |
1959 | |
… | |
… | |
1399 | static void |
1962 | static void |
1400 | pipecb (EV_P_ ev_io *iow, int revents) |
1963 | pipecb (EV_P_ ev_io *iow, int revents) |
1401 | { |
1964 | { |
1402 | int i; |
1965 | int i; |
1403 | |
1966 | |
|
|
1967 | if (revents & EV_READ) |
|
|
1968 | { |
1404 | #if EV_USE_EVENTFD |
1969 | #if EV_USE_EVENTFD |
1405 | if (evfd >= 0) |
1970 | if (evpipe [0] < 0) |
1406 | { |
1971 | { |
1407 | uint64_t counter; |
1972 | uint64_t counter; |
1408 | read (evfd, &counter, sizeof (uint64_t)); |
1973 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1409 | } |
1974 | } |
1410 | else |
1975 | else |
1411 | #endif |
1976 | #endif |
1412 | { |
1977 | { |
1413 | char dummy; |
1978 | char dummy[4]; |
1414 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1979 | #ifdef _WIN32 |
|
|
1980 | WSABUF buf; |
|
|
1981 | DWORD recvd; |
|
|
1982 | DWORD flags = 0; |
|
|
1983 | buf.buf = dummy; |
|
|
1984 | buf.len = sizeof (dummy); |
|
|
1985 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
1986 | #else |
1415 | read (evpipe [0], &dummy, 1); |
1987 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1988 | #endif |
|
|
1989 | } |
1416 | } |
1990 | } |
|
|
1991 | |
|
|
1992 | pipe_write_skipped = 0; |
|
|
1993 | |
|
|
1994 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1417 | |
1995 | |
1418 | #if EV_SIGNAL_ENABLE |
1996 | #if EV_SIGNAL_ENABLE |
1419 | if (sig_pending) |
1997 | if (sig_pending) |
1420 | { |
1998 | { |
1421 | sig_pending = 0; |
1999 | sig_pending = 0; |
|
|
2000 | |
|
|
2001 | ECB_MEMORY_FENCE; |
1422 | |
2002 | |
1423 | for (i = EV_NSIG - 1; i--; ) |
2003 | for (i = EV_NSIG - 1; i--; ) |
1424 | if (expect_false (signals [i].pending)) |
2004 | if (expect_false (signals [i].pending)) |
1425 | ev_feed_signal_event (EV_A_ i + 1); |
2005 | ev_feed_signal_event (EV_A_ i + 1); |
1426 | } |
2006 | } |
… | |
… | |
1428 | |
2008 | |
1429 | #if EV_ASYNC_ENABLE |
2009 | #if EV_ASYNC_ENABLE |
1430 | if (async_pending) |
2010 | if (async_pending) |
1431 | { |
2011 | { |
1432 | async_pending = 0; |
2012 | async_pending = 0; |
|
|
2013 | |
|
|
2014 | ECB_MEMORY_FENCE; |
1433 | |
2015 | |
1434 | for (i = asynccnt; i--; ) |
2016 | for (i = asynccnt; i--; ) |
1435 | if (asyncs [i]->sent) |
2017 | if (asyncs [i]->sent) |
1436 | { |
2018 | { |
1437 | asyncs [i]->sent = 0; |
2019 | asyncs [i]->sent = 0; |
|
|
2020 | ECB_MEMORY_FENCE_RELEASE; |
1438 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2021 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1439 | } |
2022 | } |
1440 | } |
2023 | } |
1441 | #endif |
2024 | #endif |
1442 | } |
2025 | } |
1443 | |
2026 | |
1444 | /*****************************************************************************/ |
2027 | /*****************************************************************************/ |
1445 | |
2028 | |
1446 | void |
2029 | void |
1447 | ev_feed_signal (int signum) |
2030 | ev_feed_signal (int signum) EV_THROW |
1448 | { |
2031 | { |
1449 | #if EV_MULTIPLICITY |
2032 | #if EV_MULTIPLICITY |
1450 | EV_P = signals [signum - 1].loop; |
2033 | EV_P = signals [signum - 1].loop; |
1451 | |
2034 | |
1452 | if (!EV_A) |
2035 | if (!EV_A) |
… | |
… | |
1466 | |
2049 | |
1467 | ev_feed_signal (signum); |
2050 | ev_feed_signal (signum); |
1468 | } |
2051 | } |
1469 | |
2052 | |
1470 | void noinline |
2053 | void noinline |
1471 | ev_feed_signal_event (EV_P_ int signum) |
2054 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1472 | { |
2055 | { |
1473 | WL w; |
2056 | WL w; |
1474 | |
2057 | |
1475 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2058 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1476 | return; |
2059 | return; |
1477 | |
2060 | |
1478 | --signum; |
2061 | --signum; |
1479 | |
2062 | |
1480 | #if EV_MULTIPLICITY |
2063 | #if EV_MULTIPLICITY |
… | |
… | |
1484 | if (expect_false (signals [signum].loop != EV_A)) |
2067 | if (expect_false (signals [signum].loop != EV_A)) |
1485 | return; |
2068 | return; |
1486 | #endif |
2069 | #endif |
1487 | |
2070 | |
1488 | signals [signum].pending = 0; |
2071 | signals [signum].pending = 0; |
|
|
2072 | ECB_MEMORY_FENCE_RELEASE; |
1489 | |
2073 | |
1490 | for (w = signals [signum].head; w; w = w->next) |
2074 | for (w = signals [signum].head; w; w = w->next) |
1491 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2075 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1492 | } |
2076 | } |
1493 | |
2077 | |
… | |
… | |
1591 | #endif |
2175 | #endif |
1592 | #if EV_USE_SELECT |
2176 | #if EV_USE_SELECT |
1593 | # include "ev_select.c" |
2177 | # include "ev_select.c" |
1594 | #endif |
2178 | #endif |
1595 | |
2179 | |
1596 | int |
2180 | int ecb_cold |
1597 | ev_version_major (void) |
2181 | ev_version_major (void) EV_THROW |
1598 | { |
2182 | { |
1599 | return EV_VERSION_MAJOR; |
2183 | return EV_VERSION_MAJOR; |
1600 | } |
2184 | } |
1601 | |
2185 | |
1602 | int |
2186 | int ecb_cold |
1603 | ev_version_minor (void) |
2187 | ev_version_minor (void) EV_THROW |
1604 | { |
2188 | { |
1605 | return EV_VERSION_MINOR; |
2189 | return EV_VERSION_MINOR; |
1606 | } |
2190 | } |
1607 | |
2191 | |
1608 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2192 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1609 | int inline_size |
2193 | int inline_size ecb_cold |
1610 | enable_secure (void) |
2194 | enable_secure (void) |
1611 | { |
2195 | { |
1612 | #ifdef _WIN32 |
2196 | #ifdef _WIN32 |
1613 | return 0; |
2197 | return 0; |
1614 | #else |
2198 | #else |
1615 | return getuid () != geteuid () |
2199 | return getuid () != geteuid () |
1616 | || getgid () != getegid (); |
2200 | || getgid () != getegid (); |
1617 | #endif |
2201 | #endif |
1618 | } |
2202 | } |
1619 | |
2203 | |
1620 | unsigned int |
2204 | unsigned int ecb_cold |
1621 | ev_supported_backends (void) |
2205 | ev_supported_backends (void) EV_THROW |
1622 | { |
2206 | { |
1623 | unsigned int flags = 0; |
2207 | unsigned int flags = 0; |
1624 | |
2208 | |
1625 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2209 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1626 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2210 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1629 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2213 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1630 | |
2214 | |
1631 | return flags; |
2215 | return flags; |
1632 | } |
2216 | } |
1633 | |
2217 | |
1634 | unsigned int |
2218 | unsigned int ecb_cold |
1635 | ev_recommended_backends (void) |
2219 | ev_recommended_backends (void) EV_THROW |
1636 | { |
2220 | { |
1637 | unsigned int flags = ev_supported_backends (); |
2221 | unsigned int flags = ev_supported_backends (); |
1638 | |
2222 | |
1639 | #ifndef __NetBSD__ |
2223 | #ifndef __NetBSD__ |
1640 | /* kqueue is borked on everything but netbsd apparently */ |
2224 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1651 | #endif |
2235 | #endif |
1652 | |
2236 | |
1653 | return flags; |
2237 | return flags; |
1654 | } |
2238 | } |
1655 | |
2239 | |
1656 | unsigned int |
2240 | unsigned int ecb_cold |
1657 | ev_embeddable_backends (void) |
2241 | ev_embeddable_backends (void) EV_THROW |
1658 | { |
2242 | { |
1659 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2243 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1660 | |
2244 | |
1661 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2245 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1662 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2246 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1664 | |
2248 | |
1665 | return flags; |
2249 | return flags; |
1666 | } |
2250 | } |
1667 | |
2251 | |
1668 | unsigned int |
2252 | unsigned int |
1669 | ev_backend (EV_P) |
2253 | ev_backend (EV_P) EV_THROW |
1670 | { |
2254 | { |
1671 | return backend; |
2255 | return backend; |
1672 | } |
2256 | } |
1673 | |
2257 | |
1674 | #if EV_FEATURE_API |
2258 | #if EV_FEATURE_API |
1675 | unsigned int |
2259 | unsigned int |
1676 | ev_iteration (EV_P) |
2260 | ev_iteration (EV_P) EV_THROW |
1677 | { |
2261 | { |
1678 | return loop_count; |
2262 | return loop_count; |
1679 | } |
2263 | } |
1680 | |
2264 | |
1681 | unsigned int |
2265 | unsigned int |
1682 | ev_depth (EV_P) |
2266 | ev_depth (EV_P) EV_THROW |
1683 | { |
2267 | { |
1684 | return loop_depth; |
2268 | return loop_depth; |
1685 | } |
2269 | } |
1686 | |
2270 | |
1687 | void |
2271 | void |
1688 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2272 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1689 | { |
2273 | { |
1690 | io_blocktime = interval; |
2274 | io_blocktime = interval; |
1691 | } |
2275 | } |
1692 | |
2276 | |
1693 | void |
2277 | void |
1694 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2278 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1695 | { |
2279 | { |
1696 | timeout_blocktime = interval; |
2280 | timeout_blocktime = interval; |
1697 | } |
2281 | } |
1698 | |
2282 | |
1699 | void |
2283 | void |
1700 | ev_set_userdata (EV_P_ void *data) |
2284 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1701 | { |
2285 | { |
1702 | userdata = data; |
2286 | userdata = data; |
1703 | } |
2287 | } |
1704 | |
2288 | |
1705 | void * |
2289 | void * |
1706 | ev_userdata (EV_P) |
2290 | ev_userdata (EV_P) EV_THROW |
1707 | { |
2291 | { |
1708 | return userdata; |
2292 | return userdata; |
1709 | } |
2293 | } |
1710 | |
2294 | |
|
|
2295 | void |
1711 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2296 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1712 | { |
2297 | { |
1713 | invoke_cb = invoke_pending_cb; |
2298 | invoke_cb = invoke_pending_cb; |
1714 | } |
2299 | } |
1715 | |
2300 | |
|
|
2301 | void |
1716 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2302 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1717 | { |
2303 | { |
1718 | release_cb = release; |
2304 | release_cb = release; |
1719 | acquire_cb = acquire; |
2305 | acquire_cb = acquire; |
1720 | } |
2306 | } |
1721 | #endif |
2307 | #endif |
1722 | |
2308 | |
1723 | /* initialise a loop structure, must be zero-initialised */ |
2309 | /* initialise a loop structure, must be zero-initialised */ |
1724 | static void noinline |
2310 | static void noinline ecb_cold |
1725 | loop_init (EV_P_ unsigned int flags) |
2311 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1726 | { |
2312 | { |
1727 | if (!backend) |
2313 | if (!backend) |
1728 | { |
2314 | { |
1729 | origflags = flags; |
2315 | origflags = flags; |
1730 | |
2316 | |
… | |
… | |
1757 | if (!(flags & EVFLAG_NOENV) |
2343 | if (!(flags & EVFLAG_NOENV) |
1758 | && !enable_secure () |
2344 | && !enable_secure () |
1759 | && getenv ("LIBEV_FLAGS")) |
2345 | && getenv ("LIBEV_FLAGS")) |
1760 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2346 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1761 | |
2347 | |
1762 | ev_rt_now = ev_time (); |
2348 | ev_rt_now = ev_time (); |
1763 | mn_now = get_clock (); |
2349 | mn_now = get_clock (); |
1764 | now_floor = mn_now; |
2350 | now_floor = mn_now; |
1765 | rtmn_diff = ev_rt_now - mn_now; |
2351 | rtmn_diff = ev_rt_now - mn_now; |
1766 | #if EV_FEATURE_API |
2352 | #if EV_FEATURE_API |
1767 | invoke_cb = ev_invoke_pending; |
2353 | invoke_cb = ev_invoke_pending; |
1768 | #endif |
2354 | #endif |
1769 | |
2355 | |
1770 | io_blocktime = 0.; |
2356 | io_blocktime = 0.; |
1771 | timeout_blocktime = 0.; |
2357 | timeout_blocktime = 0.; |
1772 | backend = 0; |
2358 | backend = 0; |
1773 | backend_fd = -1; |
2359 | backend_fd = -1; |
1774 | sig_pending = 0; |
2360 | sig_pending = 0; |
1775 | #if EV_ASYNC_ENABLE |
2361 | #if EV_ASYNC_ENABLE |
1776 | async_pending = 0; |
2362 | async_pending = 0; |
1777 | #endif |
2363 | #endif |
|
|
2364 | pipe_write_skipped = 0; |
|
|
2365 | pipe_write_wanted = 0; |
|
|
2366 | evpipe [0] = -1; |
|
|
2367 | evpipe [1] = -1; |
1778 | #if EV_USE_INOTIFY |
2368 | #if EV_USE_INOTIFY |
1779 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2369 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1780 | #endif |
2370 | #endif |
1781 | #if EV_USE_SIGNALFD |
2371 | #if EV_USE_SIGNALFD |
1782 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2372 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1783 | #endif |
2373 | #endif |
1784 | |
2374 | |
1785 | if (!(flags & EVBACKEND_MASK)) |
2375 | if (!(flags & EVBACKEND_MASK)) |
1786 | flags |= ev_recommended_backends (); |
2376 | flags |= ev_recommended_backends (); |
1787 | |
2377 | |
… | |
… | |
1812 | #endif |
2402 | #endif |
1813 | } |
2403 | } |
1814 | } |
2404 | } |
1815 | |
2405 | |
1816 | /* free up a loop structure */ |
2406 | /* free up a loop structure */ |
1817 | void |
2407 | void ecb_cold |
1818 | ev_loop_destroy (EV_P) |
2408 | ev_loop_destroy (EV_P) |
1819 | { |
2409 | { |
1820 | int i; |
2410 | int i; |
1821 | |
2411 | |
1822 | #if EV_MULTIPLICITY |
2412 | #if EV_MULTIPLICITY |
… | |
… | |
1833 | EV_INVOKE_PENDING; |
2423 | EV_INVOKE_PENDING; |
1834 | } |
2424 | } |
1835 | #endif |
2425 | #endif |
1836 | |
2426 | |
1837 | #if EV_CHILD_ENABLE |
2427 | #if EV_CHILD_ENABLE |
1838 | if (ev_is_active (&childev)) |
2428 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1839 | { |
2429 | { |
1840 | ev_ref (EV_A); /* child watcher */ |
2430 | ev_ref (EV_A); /* child watcher */ |
1841 | ev_signal_stop (EV_A_ &childev); |
2431 | ev_signal_stop (EV_A_ &childev); |
1842 | } |
2432 | } |
1843 | #endif |
2433 | #endif |
… | |
… | |
1845 | if (ev_is_active (&pipe_w)) |
2435 | if (ev_is_active (&pipe_w)) |
1846 | { |
2436 | { |
1847 | /*ev_ref (EV_A);*/ |
2437 | /*ev_ref (EV_A);*/ |
1848 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2438 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1849 | |
2439 | |
1850 | #if EV_USE_EVENTFD |
|
|
1851 | if (evfd >= 0) |
|
|
1852 | close (evfd); |
|
|
1853 | #endif |
|
|
1854 | |
|
|
1855 | if (evpipe [0] >= 0) |
|
|
1856 | { |
|
|
1857 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2440 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1858 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2441 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1859 | } |
|
|
1860 | } |
2442 | } |
1861 | |
2443 | |
1862 | #if EV_USE_SIGNALFD |
2444 | #if EV_USE_SIGNALFD |
1863 | if (ev_is_active (&sigfd_w)) |
2445 | if (ev_is_active (&sigfd_w)) |
1864 | close (sigfd); |
2446 | close (sigfd); |
… | |
… | |
1950 | #endif |
2532 | #endif |
1951 | #if EV_USE_INOTIFY |
2533 | #if EV_USE_INOTIFY |
1952 | infy_fork (EV_A); |
2534 | infy_fork (EV_A); |
1953 | #endif |
2535 | #endif |
1954 | |
2536 | |
|
|
2537 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1955 | if (ev_is_active (&pipe_w)) |
2538 | if (ev_is_active (&pipe_w)) |
1956 | { |
2539 | { |
1957 | /* this "locks" the handlers against writing to the pipe */ |
2540 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1958 | /* while we modify the fd vars */ |
|
|
1959 | sig_pending = 1; |
|
|
1960 | #if EV_ASYNC_ENABLE |
|
|
1961 | async_pending = 1; |
|
|
1962 | #endif |
|
|
1963 | |
2541 | |
1964 | ev_ref (EV_A); |
2542 | ev_ref (EV_A); |
1965 | ev_io_stop (EV_A_ &pipe_w); |
2543 | ev_io_stop (EV_A_ &pipe_w); |
1966 | |
2544 | |
1967 | #if EV_USE_EVENTFD |
|
|
1968 | if (evfd >= 0) |
|
|
1969 | close (evfd); |
|
|
1970 | #endif |
|
|
1971 | |
|
|
1972 | if (evpipe [0] >= 0) |
2545 | if (evpipe [0] >= 0) |
1973 | { |
|
|
1974 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2546 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1975 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1976 | } |
|
|
1977 | |
2547 | |
1978 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1979 | evpipe_init (EV_A); |
2548 | evpipe_init (EV_A); |
1980 | /* now iterate over everything, in case we missed something */ |
2549 | /* iterate over everything, in case we missed something before */ |
1981 | pipecb (EV_A_ &pipe_w, EV_READ); |
2550 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1982 | #endif |
|
|
1983 | } |
2551 | } |
|
|
2552 | #endif |
1984 | |
2553 | |
1985 | postfork = 0; |
2554 | postfork = 0; |
1986 | } |
2555 | } |
1987 | |
2556 | |
1988 | #if EV_MULTIPLICITY |
2557 | #if EV_MULTIPLICITY |
1989 | |
2558 | |
1990 | struct ev_loop * |
2559 | struct ev_loop * ecb_cold |
1991 | ev_loop_new (unsigned int flags) |
2560 | ev_loop_new (unsigned int flags) EV_THROW |
1992 | { |
2561 | { |
1993 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2562 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1994 | |
2563 | |
1995 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2564 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1996 | loop_init (EV_A_ flags); |
2565 | loop_init (EV_A_ flags); |
… | |
… | |
2003 | } |
2572 | } |
2004 | |
2573 | |
2005 | #endif /* multiplicity */ |
2574 | #endif /* multiplicity */ |
2006 | |
2575 | |
2007 | #if EV_VERIFY |
2576 | #if EV_VERIFY |
2008 | static void noinline |
2577 | static void noinline ecb_cold |
2009 | verify_watcher (EV_P_ W w) |
2578 | verify_watcher (EV_P_ W w) |
2010 | { |
2579 | { |
2011 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2580 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2012 | |
2581 | |
2013 | if (w->pending) |
2582 | if (w->pending) |
2014 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2583 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2015 | } |
2584 | } |
2016 | |
2585 | |
2017 | static void noinline |
2586 | static void noinline ecb_cold |
2018 | verify_heap (EV_P_ ANHE *heap, int N) |
2587 | verify_heap (EV_P_ ANHE *heap, int N) |
2019 | { |
2588 | { |
2020 | int i; |
2589 | int i; |
2021 | |
2590 | |
2022 | for (i = HEAP0; i < N + HEAP0; ++i) |
2591 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2027 | |
2596 | |
2028 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2597 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2029 | } |
2598 | } |
2030 | } |
2599 | } |
2031 | |
2600 | |
2032 | static void noinline |
2601 | static void noinline ecb_cold |
2033 | array_verify (EV_P_ W *ws, int cnt) |
2602 | array_verify (EV_P_ W *ws, int cnt) |
2034 | { |
2603 | { |
2035 | while (cnt--) |
2604 | while (cnt--) |
2036 | { |
2605 | { |
2037 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2606 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2039 | } |
2608 | } |
2040 | } |
2609 | } |
2041 | #endif |
2610 | #endif |
2042 | |
2611 | |
2043 | #if EV_FEATURE_API |
2612 | #if EV_FEATURE_API |
2044 | void |
2613 | void ecb_cold |
2045 | ev_verify (EV_P) |
2614 | ev_verify (EV_P) EV_THROW |
2046 | { |
2615 | { |
2047 | #if EV_VERIFY |
2616 | #if EV_VERIFY |
2048 | int i; |
2617 | int i; |
2049 | WL w; |
2618 | WL w, w2; |
2050 | |
2619 | |
2051 | assert (activecnt >= -1); |
2620 | assert (activecnt >= -1); |
2052 | |
2621 | |
2053 | assert (fdchangemax >= fdchangecnt); |
2622 | assert (fdchangemax >= fdchangecnt); |
2054 | for (i = 0; i < fdchangecnt; ++i) |
2623 | for (i = 0; i < fdchangecnt; ++i) |
2055 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2624 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2056 | |
2625 | |
2057 | assert (anfdmax >= 0); |
2626 | assert (anfdmax >= 0); |
2058 | for (i = 0; i < anfdmax; ++i) |
2627 | for (i = 0; i < anfdmax; ++i) |
|
|
2628 | { |
|
|
2629 | int j = 0; |
|
|
2630 | |
2059 | for (w = anfds [i].head; w; w = w->next) |
2631 | for (w = w2 = anfds [i].head; w; w = w->next) |
2060 | { |
2632 | { |
2061 | verify_watcher (EV_A_ (W)w); |
2633 | verify_watcher (EV_A_ (W)w); |
|
|
2634 | |
|
|
2635 | if (j++ & 1) |
|
|
2636 | { |
|
|
2637 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2638 | w2 = w2->next; |
|
|
2639 | } |
|
|
2640 | |
2062 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2641 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2063 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2642 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2064 | } |
2643 | } |
|
|
2644 | } |
2065 | |
2645 | |
2066 | assert (timermax >= timercnt); |
2646 | assert (timermax >= timercnt); |
2067 | verify_heap (EV_A_ timers, timercnt); |
2647 | verify_heap (EV_A_ timers, timercnt); |
2068 | |
2648 | |
2069 | #if EV_PERIODIC_ENABLE |
2649 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2115 | #endif |
2695 | #endif |
2116 | } |
2696 | } |
2117 | #endif |
2697 | #endif |
2118 | |
2698 | |
2119 | #if EV_MULTIPLICITY |
2699 | #if EV_MULTIPLICITY |
2120 | struct ev_loop * |
2700 | struct ev_loop * ecb_cold |
2121 | #else |
2701 | #else |
2122 | int |
2702 | int |
2123 | #endif |
2703 | #endif |
2124 | ev_default_loop (unsigned int flags) |
2704 | ev_default_loop (unsigned int flags) EV_THROW |
2125 | { |
2705 | { |
2126 | if (!ev_default_loop_ptr) |
2706 | if (!ev_default_loop_ptr) |
2127 | { |
2707 | { |
2128 | #if EV_MULTIPLICITY |
2708 | #if EV_MULTIPLICITY |
2129 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2709 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2148 | |
2728 | |
2149 | return ev_default_loop_ptr; |
2729 | return ev_default_loop_ptr; |
2150 | } |
2730 | } |
2151 | |
2731 | |
2152 | void |
2732 | void |
2153 | ev_loop_fork (EV_P) |
2733 | ev_loop_fork (EV_P) EV_THROW |
2154 | { |
2734 | { |
2155 | postfork = 1; /* must be in line with ev_default_fork */ |
2735 | postfork = 1; |
2156 | } |
2736 | } |
2157 | |
2737 | |
2158 | /*****************************************************************************/ |
2738 | /*****************************************************************************/ |
2159 | |
2739 | |
2160 | void |
2740 | void |
… | |
… | |
2162 | { |
2742 | { |
2163 | EV_CB_INVOKE ((W)w, revents); |
2743 | EV_CB_INVOKE ((W)w, revents); |
2164 | } |
2744 | } |
2165 | |
2745 | |
2166 | unsigned int |
2746 | unsigned int |
2167 | ev_pending_count (EV_P) |
2747 | ev_pending_count (EV_P) EV_THROW |
2168 | { |
2748 | { |
2169 | int pri; |
2749 | int pri; |
2170 | unsigned int count = 0; |
2750 | unsigned int count = 0; |
2171 | |
2751 | |
2172 | for (pri = NUMPRI; pri--; ) |
2752 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2176 | } |
2756 | } |
2177 | |
2757 | |
2178 | void noinline |
2758 | void noinline |
2179 | ev_invoke_pending (EV_P) |
2759 | ev_invoke_pending (EV_P) |
2180 | { |
2760 | { |
2181 | int pri; |
2761 | pendingpri = NUMPRI; |
2182 | |
2762 | |
2183 | for (pri = NUMPRI; pri--; ) |
2763 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2764 | { |
|
|
2765 | --pendingpri; |
|
|
2766 | |
2184 | while (pendingcnt [pri]) |
2767 | while (pendingcnt [pendingpri]) |
2185 | { |
2768 | { |
2186 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2769 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2187 | |
2770 | |
2188 | p->w->pending = 0; |
2771 | p->w->pending = 0; |
2189 | EV_CB_INVOKE (p->w, p->events); |
2772 | EV_CB_INVOKE (p->w, p->events); |
2190 | EV_FREQUENT_CHECK; |
2773 | EV_FREQUENT_CHECK; |
2191 | } |
2774 | } |
|
|
2775 | } |
2192 | } |
2776 | } |
2193 | |
2777 | |
2194 | #if EV_IDLE_ENABLE |
2778 | #if EV_IDLE_ENABLE |
2195 | /* make idle watchers pending. this handles the "call-idle */ |
2779 | /* make idle watchers pending. this handles the "call-idle */ |
2196 | /* only when higher priorities are idle" logic */ |
2780 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2286 | { |
2870 | { |
2287 | EV_FREQUENT_CHECK; |
2871 | EV_FREQUENT_CHECK; |
2288 | |
2872 | |
2289 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2290 | { |
2874 | { |
2291 | int feed_count = 0; |
|
|
2292 | |
|
|
2293 | do |
2875 | do |
2294 | { |
2876 | { |
2295 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2877 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2296 | |
2878 | |
2297 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2879 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2324 | } |
2906 | } |
2325 | } |
2907 | } |
2326 | |
2908 | |
2327 | /* simply recalculate all periodics */ |
2909 | /* simply recalculate all periodics */ |
2328 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2910 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2329 | static void noinline |
2911 | static void noinline ecb_cold |
2330 | periodics_reschedule (EV_P) |
2912 | periodics_reschedule (EV_P) |
2331 | { |
2913 | { |
2332 | int i; |
2914 | int i; |
2333 | |
2915 | |
2334 | /* adjust periodics after time jump */ |
2916 | /* adjust periodics after time jump */ |
… | |
… | |
2347 | reheap (periodics, periodiccnt); |
2929 | reheap (periodics, periodiccnt); |
2348 | } |
2930 | } |
2349 | #endif |
2931 | #endif |
2350 | |
2932 | |
2351 | /* adjust all timers by a given offset */ |
2933 | /* adjust all timers by a given offset */ |
2352 | static void noinline |
2934 | static void noinline ecb_cold |
2353 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2935 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2354 | { |
2936 | { |
2355 | int i; |
2937 | int i; |
2356 | |
2938 | |
2357 | for (i = 0; i < timercnt; ++i) |
2939 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2431 | |
3013 | |
2432 | mn_now = ev_rt_now; |
3014 | mn_now = ev_rt_now; |
2433 | } |
3015 | } |
2434 | } |
3016 | } |
2435 | |
3017 | |
2436 | void |
3018 | int |
2437 | ev_run (EV_P_ int flags) |
3019 | ev_run (EV_P_ int flags) |
2438 | { |
3020 | { |
2439 | #if EV_FEATURE_API |
3021 | #if EV_FEATURE_API |
2440 | ++loop_depth; |
3022 | ++loop_depth; |
2441 | #endif |
3023 | #endif |
… | |
… | |
2499 | ev_tstamp prev_mn_now = mn_now; |
3081 | ev_tstamp prev_mn_now = mn_now; |
2500 | |
3082 | |
2501 | /* update time to cancel out callback processing overhead */ |
3083 | /* update time to cancel out callback processing overhead */ |
2502 | time_update (EV_A_ 1e100); |
3084 | time_update (EV_A_ 1e100); |
2503 | |
3085 | |
|
|
3086 | /* from now on, we want a pipe-wake-up */ |
|
|
3087 | pipe_write_wanted = 1; |
|
|
3088 | |
|
|
3089 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3090 | |
2504 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3091 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2505 | { |
3092 | { |
2506 | waittime = MAX_BLOCKTIME; |
3093 | waittime = MAX_BLOCKTIME; |
2507 | |
3094 | |
2508 | if (timercnt) |
3095 | if (timercnt) |
2509 | { |
3096 | { |
2510 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3097 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2511 | if (waittime > to) waittime = to; |
3098 | if (waittime > to) waittime = to; |
2512 | } |
3099 | } |
2513 | |
3100 | |
2514 | #if EV_PERIODIC_ENABLE |
3101 | #if EV_PERIODIC_ENABLE |
2515 | if (periodiccnt) |
3102 | if (periodiccnt) |
2516 | { |
3103 | { |
2517 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3104 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2518 | if (waittime > to) waittime = to; |
3105 | if (waittime > to) waittime = to; |
2519 | } |
3106 | } |
2520 | #endif |
3107 | #endif |
2521 | |
3108 | |
2522 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3109 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2523 | if (expect_false (waittime < timeout_blocktime)) |
3110 | if (expect_false (waittime < timeout_blocktime)) |
2524 | waittime = timeout_blocktime; |
3111 | waittime = timeout_blocktime; |
|
|
3112 | |
|
|
3113 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3114 | /* to pass a minimum nonzero value to the backend */ |
|
|
3115 | if (expect_false (waittime < backend_mintime)) |
|
|
3116 | waittime = backend_mintime; |
2525 | |
3117 | |
2526 | /* extra check because io_blocktime is commonly 0 */ |
3118 | /* extra check because io_blocktime is commonly 0 */ |
2527 | if (expect_false (io_blocktime)) |
3119 | if (expect_false (io_blocktime)) |
2528 | { |
3120 | { |
2529 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3121 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2530 | |
3122 | |
2531 | if (sleeptime > waittime - backend_fudge) |
3123 | if (sleeptime > waittime - backend_mintime) |
2532 | sleeptime = waittime - backend_fudge; |
3124 | sleeptime = waittime - backend_mintime; |
2533 | |
3125 | |
2534 | if (expect_true (sleeptime > 0.)) |
3126 | if (expect_true (sleeptime > 0.)) |
2535 | { |
3127 | { |
2536 | ev_sleep (sleeptime); |
3128 | ev_sleep (sleeptime); |
2537 | waittime -= sleeptime; |
3129 | waittime -= sleeptime; |
… | |
… | |
2544 | #endif |
3136 | #endif |
2545 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3137 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2546 | backend_poll (EV_A_ waittime); |
3138 | backend_poll (EV_A_ waittime); |
2547 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3139 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2548 | |
3140 | |
|
|
3141 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3142 | |
|
|
3143 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3144 | if (pipe_write_skipped) |
|
|
3145 | { |
|
|
3146 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3147 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3148 | } |
|
|
3149 | |
|
|
3150 | |
2549 | /* update ev_rt_now, do magic */ |
3151 | /* update ev_rt_now, do magic */ |
2550 | time_update (EV_A_ waittime + sleeptime); |
3152 | time_update (EV_A_ waittime + sleeptime); |
2551 | } |
3153 | } |
2552 | |
3154 | |
2553 | /* queue pending timers and reschedule them */ |
3155 | /* queue pending timers and reschedule them */ |
… | |
… | |
2579 | loop_done = EVBREAK_CANCEL; |
3181 | loop_done = EVBREAK_CANCEL; |
2580 | |
3182 | |
2581 | #if EV_FEATURE_API |
3183 | #if EV_FEATURE_API |
2582 | --loop_depth; |
3184 | --loop_depth; |
2583 | #endif |
3185 | #endif |
|
|
3186 | |
|
|
3187 | return activecnt; |
2584 | } |
3188 | } |
2585 | |
3189 | |
2586 | void |
3190 | void |
2587 | ev_break (EV_P_ int how) |
3191 | ev_break (EV_P_ int how) EV_THROW |
2588 | { |
3192 | { |
2589 | loop_done = how; |
3193 | loop_done = how; |
2590 | } |
3194 | } |
2591 | |
3195 | |
2592 | void |
3196 | void |
2593 | ev_ref (EV_P) |
3197 | ev_ref (EV_P) EV_THROW |
2594 | { |
3198 | { |
2595 | ++activecnt; |
3199 | ++activecnt; |
2596 | } |
3200 | } |
2597 | |
3201 | |
2598 | void |
3202 | void |
2599 | ev_unref (EV_P) |
3203 | ev_unref (EV_P) EV_THROW |
2600 | { |
3204 | { |
2601 | --activecnt; |
3205 | --activecnt; |
2602 | } |
3206 | } |
2603 | |
3207 | |
2604 | void |
3208 | void |
2605 | ev_now_update (EV_P) |
3209 | ev_now_update (EV_P) EV_THROW |
2606 | { |
3210 | { |
2607 | time_update (EV_A_ 1e100); |
3211 | time_update (EV_A_ 1e100); |
2608 | } |
3212 | } |
2609 | |
3213 | |
2610 | void |
3214 | void |
2611 | ev_suspend (EV_P) |
3215 | ev_suspend (EV_P) EV_THROW |
2612 | { |
3216 | { |
2613 | ev_now_update (EV_A); |
3217 | ev_now_update (EV_A); |
2614 | } |
3218 | } |
2615 | |
3219 | |
2616 | void |
3220 | void |
2617 | ev_resume (EV_P) |
3221 | ev_resume (EV_P) EV_THROW |
2618 | { |
3222 | { |
2619 | ev_tstamp mn_prev = mn_now; |
3223 | ev_tstamp mn_prev = mn_now; |
2620 | |
3224 | |
2621 | ev_now_update (EV_A); |
3225 | ev_now_update (EV_A); |
2622 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3226 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2661 | w->pending = 0; |
3265 | w->pending = 0; |
2662 | } |
3266 | } |
2663 | } |
3267 | } |
2664 | |
3268 | |
2665 | int |
3269 | int |
2666 | ev_clear_pending (EV_P_ void *w) |
3270 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2667 | { |
3271 | { |
2668 | W w_ = (W)w; |
3272 | W w_ = (W)w; |
2669 | int pending = w_->pending; |
3273 | int pending = w_->pending; |
2670 | |
3274 | |
2671 | if (expect_true (pending)) |
3275 | if (expect_true (pending)) |
… | |
… | |
2704 | } |
3308 | } |
2705 | |
3309 | |
2706 | /*****************************************************************************/ |
3310 | /*****************************************************************************/ |
2707 | |
3311 | |
2708 | void noinline |
3312 | void noinline |
2709 | ev_io_start (EV_P_ ev_io *w) |
3313 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2710 | { |
3314 | { |
2711 | int fd = w->fd; |
3315 | int fd = w->fd; |
2712 | |
3316 | |
2713 | if (expect_false (ev_is_active (w))) |
3317 | if (expect_false (ev_is_active (w))) |
2714 | return; |
3318 | return; |
… | |
… | |
2720 | |
3324 | |
2721 | ev_start (EV_A_ (W)w, 1); |
3325 | ev_start (EV_A_ (W)w, 1); |
2722 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3326 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2723 | wlist_add (&anfds[fd].head, (WL)w); |
3327 | wlist_add (&anfds[fd].head, (WL)w); |
2724 | |
3328 | |
|
|
3329 | /* common bug, apparently */ |
|
|
3330 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3331 | |
2725 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3332 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2726 | w->events &= ~EV__IOFDSET; |
3333 | w->events &= ~EV__IOFDSET; |
2727 | |
3334 | |
2728 | EV_FREQUENT_CHECK; |
3335 | EV_FREQUENT_CHECK; |
2729 | } |
3336 | } |
2730 | |
3337 | |
2731 | void noinline |
3338 | void noinline |
2732 | ev_io_stop (EV_P_ ev_io *w) |
3339 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2733 | { |
3340 | { |
2734 | clear_pending (EV_A_ (W)w); |
3341 | clear_pending (EV_A_ (W)w); |
2735 | if (expect_false (!ev_is_active (w))) |
3342 | if (expect_false (!ev_is_active (w))) |
2736 | return; |
3343 | return; |
2737 | |
3344 | |
… | |
… | |
2746 | |
3353 | |
2747 | EV_FREQUENT_CHECK; |
3354 | EV_FREQUENT_CHECK; |
2748 | } |
3355 | } |
2749 | |
3356 | |
2750 | void noinline |
3357 | void noinline |
2751 | ev_timer_start (EV_P_ ev_timer *w) |
3358 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2752 | { |
3359 | { |
2753 | if (expect_false (ev_is_active (w))) |
3360 | if (expect_false (ev_is_active (w))) |
2754 | return; |
3361 | return; |
2755 | |
3362 | |
2756 | ev_at (w) += mn_now; |
3363 | ev_at (w) += mn_now; |
… | |
… | |
2770 | |
3377 | |
2771 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3378 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2772 | } |
3379 | } |
2773 | |
3380 | |
2774 | void noinline |
3381 | void noinline |
2775 | ev_timer_stop (EV_P_ ev_timer *w) |
3382 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2776 | { |
3383 | { |
2777 | clear_pending (EV_A_ (W)w); |
3384 | clear_pending (EV_A_ (W)w); |
2778 | if (expect_false (!ev_is_active (w))) |
3385 | if (expect_false (!ev_is_active (w))) |
2779 | return; |
3386 | return; |
2780 | |
3387 | |
… | |
… | |
2800 | |
3407 | |
2801 | EV_FREQUENT_CHECK; |
3408 | EV_FREQUENT_CHECK; |
2802 | } |
3409 | } |
2803 | |
3410 | |
2804 | void noinline |
3411 | void noinline |
2805 | ev_timer_again (EV_P_ ev_timer *w) |
3412 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2806 | { |
3413 | { |
2807 | EV_FREQUENT_CHECK; |
3414 | EV_FREQUENT_CHECK; |
|
|
3415 | |
|
|
3416 | clear_pending (EV_A_ (W)w); |
2808 | |
3417 | |
2809 | if (ev_is_active (w)) |
3418 | if (ev_is_active (w)) |
2810 | { |
3419 | { |
2811 | if (w->repeat) |
3420 | if (w->repeat) |
2812 | { |
3421 | { |
… | |
… | |
2825 | |
3434 | |
2826 | EV_FREQUENT_CHECK; |
3435 | EV_FREQUENT_CHECK; |
2827 | } |
3436 | } |
2828 | |
3437 | |
2829 | ev_tstamp |
3438 | ev_tstamp |
2830 | ev_timer_remaining (EV_P_ ev_timer *w) |
3439 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2831 | { |
3440 | { |
2832 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3441 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2833 | } |
3442 | } |
2834 | |
3443 | |
2835 | #if EV_PERIODIC_ENABLE |
3444 | #if EV_PERIODIC_ENABLE |
2836 | void noinline |
3445 | void noinline |
2837 | ev_periodic_start (EV_P_ ev_periodic *w) |
3446 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2838 | { |
3447 | { |
2839 | if (expect_false (ev_is_active (w))) |
3448 | if (expect_false (ev_is_active (w))) |
2840 | return; |
3449 | return; |
2841 | |
3450 | |
2842 | if (w->reschedule_cb) |
3451 | if (w->reschedule_cb) |
… | |
… | |
2862 | |
3471 | |
2863 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3472 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2864 | } |
3473 | } |
2865 | |
3474 | |
2866 | void noinline |
3475 | void noinline |
2867 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3476 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2868 | { |
3477 | { |
2869 | clear_pending (EV_A_ (W)w); |
3478 | clear_pending (EV_A_ (W)w); |
2870 | if (expect_false (!ev_is_active (w))) |
3479 | if (expect_false (!ev_is_active (w))) |
2871 | return; |
3480 | return; |
2872 | |
3481 | |
… | |
… | |
2890 | |
3499 | |
2891 | EV_FREQUENT_CHECK; |
3500 | EV_FREQUENT_CHECK; |
2892 | } |
3501 | } |
2893 | |
3502 | |
2894 | void noinline |
3503 | void noinline |
2895 | ev_periodic_again (EV_P_ ev_periodic *w) |
3504 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2896 | { |
3505 | { |
2897 | /* TODO: use adjustheap and recalculation */ |
3506 | /* TODO: use adjustheap and recalculation */ |
2898 | ev_periodic_stop (EV_A_ w); |
3507 | ev_periodic_stop (EV_A_ w); |
2899 | ev_periodic_start (EV_A_ w); |
3508 | ev_periodic_start (EV_A_ w); |
2900 | } |
3509 | } |
… | |
… | |
2905 | #endif |
3514 | #endif |
2906 | |
3515 | |
2907 | #if EV_SIGNAL_ENABLE |
3516 | #if EV_SIGNAL_ENABLE |
2908 | |
3517 | |
2909 | void noinline |
3518 | void noinline |
2910 | ev_signal_start (EV_P_ ev_signal *w) |
3519 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2911 | { |
3520 | { |
2912 | if (expect_false (ev_is_active (w))) |
3521 | if (expect_false (ev_is_active (w))) |
2913 | return; |
3522 | return; |
2914 | |
3523 | |
2915 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3524 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2986 | |
3595 | |
2987 | EV_FREQUENT_CHECK; |
3596 | EV_FREQUENT_CHECK; |
2988 | } |
3597 | } |
2989 | |
3598 | |
2990 | void noinline |
3599 | void noinline |
2991 | ev_signal_stop (EV_P_ ev_signal *w) |
3600 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2992 | { |
3601 | { |
2993 | clear_pending (EV_A_ (W)w); |
3602 | clear_pending (EV_A_ (W)w); |
2994 | if (expect_false (!ev_is_active (w))) |
3603 | if (expect_false (!ev_is_active (w))) |
2995 | return; |
3604 | return; |
2996 | |
3605 | |
… | |
… | |
3027 | #endif |
3636 | #endif |
3028 | |
3637 | |
3029 | #if EV_CHILD_ENABLE |
3638 | #if EV_CHILD_ENABLE |
3030 | |
3639 | |
3031 | void |
3640 | void |
3032 | ev_child_start (EV_P_ ev_child *w) |
3641 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3033 | { |
3642 | { |
3034 | #if EV_MULTIPLICITY |
3643 | #if EV_MULTIPLICITY |
3035 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3644 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3036 | #endif |
3645 | #endif |
3037 | if (expect_false (ev_is_active (w))) |
3646 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3044 | |
3653 | |
3045 | EV_FREQUENT_CHECK; |
3654 | EV_FREQUENT_CHECK; |
3046 | } |
3655 | } |
3047 | |
3656 | |
3048 | void |
3657 | void |
3049 | ev_child_stop (EV_P_ ev_child *w) |
3658 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3050 | { |
3659 | { |
3051 | clear_pending (EV_A_ (W)w); |
3660 | clear_pending (EV_A_ (W)w); |
3052 | if (expect_false (!ev_is_active (w))) |
3661 | if (expect_false (!ev_is_active (w))) |
3053 | return; |
3662 | return; |
3054 | |
3663 | |
… | |
… | |
3206 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3815 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3207 | ofs += sizeof (struct inotify_event) + ev->len; |
3816 | ofs += sizeof (struct inotify_event) + ev->len; |
3208 | } |
3817 | } |
3209 | } |
3818 | } |
3210 | |
3819 | |
3211 | inline_size void |
3820 | inline_size void ecb_cold |
3212 | ev_check_2625 (EV_P) |
3821 | ev_check_2625 (EV_P) |
3213 | { |
3822 | { |
3214 | /* kernels < 2.6.25 are borked |
3823 | /* kernels < 2.6.25 are borked |
3215 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3824 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3216 | */ |
3825 | */ |
… | |
… | |
3221 | } |
3830 | } |
3222 | |
3831 | |
3223 | inline_size int |
3832 | inline_size int |
3224 | infy_newfd (void) |
3833 | infy_newfd (void) |
3225 | { |
3834 | { |
3226 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3835 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3227 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3836 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3228 | if (fd >= 0) |
3837 | if (fd >= 0) |
3229 | return fd; |
3838 | return fd; |
3230 | #endif |
3839 | #endif |
3231 | return inotify_init (); |
3840 | return inotify_init (); |
… | |
… | |
3306 | #else |
3915 | #else |
3307 | # define EV_LSTAT(p,b) lstat (p, b) |
3916 | # define EV_LSTAT(p,b) lstat (p, b) |
3308 | #endif |
3917 | #endif |
3309 | |
3918 | |
3310 | void |
3919 | void |
3311 | ev_stat_stat (EV_P_ ev_stat *w) |
3920 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3312 | { |
3921 | { |
3313 | if (lstat (w->path, &w->attr) < 0) |
3922 | if (lstat (w->path, &w->attr) < 0) |
3314 | w->attr.st_nlink = 0; |
3923 | w->attr.st_nlink = 0; |
3315 | else if (!w->attr.st_nlink) |
3924 | else if (!w->attr.st_nlink) |
3316 | w->attr.st_nlink = 1; |
3925 | w->attr.st_nlink = 1; |
… | |
… | |
3355 | ev_feed_event (EV_A_ w, EV_STAT); |
3964 | ev_feed_event (EV_A_ w, EV_STAT); |
3356 | } |
3965 | } |
3357 | } |
3966 | } |
3358 | |
3967 | |
3359 | void |
3968 | void |
3360 | ev_stat_start (EV_P_ ev_stat *w) |
3969 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3361 | { |
3970 | { |
3362 | if (expect_false (ev_is_active (w))) |
3971 | if (expect_false (ev_is_active (w))) |
3363 | return; |
3972 | return; |
3364 | |
3973 | |
3365 | ev_stat_stat (EV_A_ w); |
3974 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3386 | |
3995 | |
3387 | EV_FREQUENT_CHECK; |
3996 | EV_FREQUENT_CHECK; |
3388 | } |
3997 | } |
3389 | |
3998 | |
3390 | void |
3999 | void |
3391 | ev_stat_stop (EV_P_ ev_stat *w) |
4000 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3392 | { |
4001 | { |
3393 | clear_pending (EV_A_ (W)w); |
4002 | clear_pending (EV_A_ (W)w); |
3394 | if (expect_false (!ev_is_active (w))) |
4003 | if (expect_false (!ev_is_active (w))) |
3395 | return; |
4004 | return; |
3396 | |
4005 | |
… | |
… | |
3412 | } |
4021 | } |
3413 | #endif |
4022 | #endif |
3414 | |
4023 | |
3415 | #if EV_IDLE_ENABLE |
4024 | #if EV_IDLE_ENABLE |
3416 | void |
4025 | void |
3417 | ev_idle_start (EV_P_ ev_idle *w) |
4026 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3418 | { |
4027 | { |
3419 | if (expect_false (ev_is_active (w))) |
4028 | if (expect_false (ev_is_active (w))) |
3420 | return; |
4029 | return; |
3421 | |
4030 | |
3422 | pri_adjust (EV_A_ (W)w); |
4031 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3435 | |
4044 | |
3436 | EV_FREQUENT_CHECK; |
4045 | EV_FREQUENT_CHECK; |
3437 | } |
4046 | } |
3438 | |
4047 | |
3439 | void |
4048 | void |
3440 | ev_idle_stop (EV_P_ ev_idle *w) |
4049 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3441 | { |
4050 | { |
3442 | clear_pending (EV_A_ (W)w); |
4051 | clear_pending (EV_A_ (W)w); |
3443 | if (expect_false (!ev_is_active (w))) |
4052 | if (expect_false (!ev_is_active (w))) |
3444 | return; |
4053 | return; |
3445 | |
4054 | |
… | |
… | |
3459 | } |
4068 | } |
3460 | #endif |
4069 | #endif |
3461 | |
4070 | |
3462 | #if EV_PREPARE_ENABLE |
4071 | #if EV_PREPARE_ENABLE |
3463 | void |
4072 | void |
3464 | ev_prepare_start (EV_P_ ev_prepare *w) |
4073 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3465 | { |
4074 | { |
3466 | if (expect_false (ev_is_active (w))) |
4075 | if (expect_false (ev_is_active (w))) |
3467 | return; |
4076 | return; |
3468 | |
4077 | |
3469 | EV_FREQUENT_CHECK; |
4078 | EV_FREQUENT_CHECK; |
… | |
… | |
3474 | |
4083 | |
3475 | EV_FREQUENT_CHECK; |
4084 | EV_FREQUENT_CHECK; |
3476 | } |
4085 | } |
3477 | |
4086 | |
3478 | void |
4087 | void |
3479 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4088 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3480 | { |
4089 | { |
3481 | clear_pending (EV_A_ (W)w); |
4090 | clear_pending (EV_A_ (W)w); |
3482 | if (expect_false (!ev_is_active (w))) |
4091 | if (expect_false (!ev_is_active (w))) |
3483 | return; |
4092 | return; |
3484 | |
4093 | |
… | |
… | |
3497 | } |
4106 | } |
3498 | #endif |
4107 | #endif |
3499 | |
4108 | |
3500 | #if EV_CHECK_ENABLE |
4109 | #if EV_CHECK_ENABLE |
3501 | void |
4110 | void |
3502 | ev_check_start (EV_P_ ev_check *w) |
4111 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3503 | { |
4112 | { |
3504 | if (expect_false (ev_is_active (w))) |
4113 | if (expect_false (ev_is_active (w))) |
3505 | return; |
4114 | return; |
3506 | |
4115 | |
3507 | EV_FREQUENT_CHECK; |
4116 | EV_FREQUENT_CHECK; |
… | |
… | |
3512 | |
4121 | |
3513 | EV_FREQUENT_CHECK; |
4122 | EV_FREQUENT_CHECK; |
3514 | } |
4123 | } |
3515 | |
4124 | |
3516 | void |
4125 | void |
3517 | ev_check_stop (EV_P_ ev_check *w) |
4126 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3518 | { |
4127 | { |
3519 | clear_pending (EV_A_ (W)w); |
4128 | clear_pending (EV_A_ (W)w); |
3520 | if (expect_false (!ev_is_active (w))) |
4129 | if (expect_false (!ev_is_active (w))) |
3521 | return; |
4130 | return; |
3522 | |
4131 | |
… | |
… | |
3535 | } |
4144 | } |
3536 | #endif |
4145 | #endif |
3537 | |
4146 | |
3538 | #if EV_EMBED_ENABLE |
4147 | #if EV_EMBED_ENABLE |
3539 | void noinline |
4148 | void noinline |
3540 | ev_embed_sweep (EV_P_ ev_embed *w) |
4149 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3541 | { |
4150 | { |
3542 | ev_run (w->other, EVRUN_NOWAIT); |
4151 | ev_run (w->other, EVRUN_NOWAIT); |
3543 | } |
4152 | } |
3544 | |
4153 | |
3545 | static void |
4154 | static void |
… | |
… | |
3593 | ev_idle_stop (EV_A_ idle); |
4202 | ev_idle_stop (EV_A_ idle); |
3594 | } |
4203 | } |
3595 | #endif |
4204 | #endif |
3596 | |
4205 | |
3597 | void |
4206 | void |
3598 | ev_embed_start (EV_P_ ev_embed *w) |
4207 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3599 | { |
4208 | { |
3600 | if (expect_false (ev_is_active (w))) |
4209 | if (expect_false (ev_is_active (w))) |
3601 | return; |
4210 | return; |
3602 | |
4211 | |
3603 | { |
4212 | { |
… | |
… | |
3624 | |
4233 | |
3625 | EV_FREQUENT_CHECK; |
4234 | EV_FREQUENT_CHECK; |
3626 | } |
4235 | } |
3627 | |
4236 | |
3628 | void |
4237 | void |
3629 | ev_embed_stop (EV_P_ ev_embed *w) |
4238 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3630 | { |
4239 | { |
3631 | clear_pending (EV_A_ (W)w); |
4240 | clear_pending (EV_A_ (W)w); |
3632 | if (expect_false (!ev_is_active (w))) |
4241 | if (expect_false (!ev_is_active (w))) |
3633 | return; |
4242 | return; |
3634 | |
4243 | |
… | |
… | |
3644 | } |
4253 | } |
3645 | #endif |
4254 | #endif |
3646 | |
4255 | |
3647 | #if EV_FORK_ENABLE |
4256 | #if EV_FORK_ENABLE |
3648 | void |
4257 | void |
3649 | ev_fork_start (EV_P_ ev_fork *w) |
4258 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3650 | { |
4259 | { |
3651 | if (expect_false (ev_is_active (w))) |
4260 | if (expect_false (ev_is_active (w))) |
3652 | return; |
4261 | return; |
3653 | |
4262 | |
3654 | EV_FREQUENT_CHECK; |
4263 | EV_FREQUENT_CHECK; |
… | |
… | |
3659 | |
4268 | |
3660 | EV_FREQUENT_CHECK; |
4269 | EV_FREQUENT_CHECK; |
3661 | } |
4270 | } |
3662 | |
4271 | |
3663 | void |
4272 | void |
3664 | ev_fork_stop (EV_P_ ev_fork *w) |
4273 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3665 | { |
4274 | { |
3666 | clear_pending (EV_A_ (W)w); |
4275 | clear_pending (EV_A_ (W)w); |
3667 | if (expect_false (!ev_is_active (w))) |
4276 | if (expect_false (!ev_is_active (w))) |
3668 | return; |
4277 | return; |
3669 | |
4278 | |
… | |
… | |
3682 | } |
4291 | } |
3683 | #endif |
4292 | #endif |
3684 | |
4293 | |
3685 | #if EV_CLEANUP_ENABLE |
4294 | #if EV_CLEANUP_ENABLE |
3686 | void |
4295 | void |
3687 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4296 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3688 | { |
4297 | { |
3689 | if (expect_false (ev_is_active (w))) |
4298 | if (expect_false (ev_is_active (w))) |
3690 | return; |
4299 | return; |
3691 | |
4300 | |
3692 | EV_FREQUENT_CHECK; |
4301 | EV_FREQUENT_CHECK; |
… | |
… | |
3699 | ev_unref (EV_A); |
4308 | ev_unref (EV_A); |
3700 | EV_FREQUENT_CHECK; |
4309 | EV_FREQUENT_CHECK; |
3701 | } |
4310 | } |
3702 | |
4311 | |
3703 | void |
4312 | void |
3704 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4313 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3705 | { |
4314 | { |
3706 | clear_pending (EV_A_ (W)w); |
4315 | clear_pending (EV_A_ (W)w); |
3707 | if (expect_false (!ev_is_active (w))) |
4316 | if (expect_false (!ev_is_active (w))) |
3708 | return; |
4317 | return; |
3709 | |
4318 | |
… | |
… | |
3723 | } |
4332 | } |
3724 | #endif |
4333 | #endif |
3725 | |
4334 | |
3726 | #if EV_ASYNC_ENABLE |
4335 | #if EV_ASYNC_ENABLE |
3727 | void |
4336 | void |
3728 | ev_async_start (EV_P_ ev_async *w) |
4337 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3729 | { |
4338 | { |
3730 | if (expect_false (ev_is_active (w))) |
4339 | if (expect_false (ev_is_active (w))) |
3731 | return; |
4340 | return; |
3732 | |
4341 | |
3733 | w->sent = 0; |
4342 | w->sent = 0; |
… | |
… | |
3742 | |
4351 | |
3743 | EV_FREQUENT_CHECK; |
4352 | EV_FREQUENT_CHECK; |
3744 | } |
4353 | } |
3745 | |
4354 | |
3746 | void |
4355 | void |
3747 | ev_async_stop (EV_P_ ev_async *w) |
4356 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3748 | { |
4357 | { |
3749 | clear_pending (EV_A_ (W)w); |
4358 | clear_pending (EV_A_ (W)w); |
3750 | if (expect_false (!ev_is_active (w))) |
4359 | if (expect_false (!ev_is_active (w))) |
3751 | return; |
4360 | return; |
3752 | |
4361 | |
… | |
… | |
3763 | |
4372 | |
3764 | EV_FREQUENT_CHECK; |
4373 | EV_FREQUENT_CHECK; |
3765 | } |
4374 | } |
3766 | |
4375 | |
3767 | void |
4376 | void |
3768 | ev_async_send (EV_P_ ev_async *w) |
4377 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3769 | { |
4378 | { |
3770 | w->sent = 1; |
4379 | w->sent = 1; |
3771 | evpipe_write (EV_A_ &async_pending); |
4380 | evpipe_write (EV_A_ &async_pending); |
3772 | } |
4381 | } |
3773 | #endif |
4382 | #endif |
… | |
… | |
3810 | |
4419 | |
3811 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4420 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3812 | } |
4421 | } |
3813 | |
4422 | |
3814 | void |
4423 | void |
3815 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4424 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3816 | { |
4425 | { |
3817 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4426 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3818 | |
4427 | |
3819 | if (expect_false (!once)) |
4428 | if (expect_false (!once)) |
3820 | { |
4429 | { |
… | |
… | |
3841 | } |
4450 | } |
3842 | |
4451 | |
3843 | /*****************************************************************************/ |
4452 | /*****************************************************************************/ |
3844 | |
4453 | |
3845 | #if EV_WALK_ENABLE |
4454 | #if EV_WALK_ENABLE |
3846 | void |
4455 | void ecb_cold |
3847 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4456 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3848 | { |
4457 | { |
3849 | int i, j; |
4458 | int i, j; |
3850 | ev_watcher_list *wl, *wn; |
4459 | ev_watcher_list *wl, *wn; |
3851 | |
4460 | |
3852 | if (types & (EV_IO | EV_EMBED)) |
4461 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3895 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4504 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3896 | #endif |
4505 | #endif |
3897 | |
4506 | |
3898 | #if EV_IDLE_ENABLE |
4507 | #if EV_IDLE_ENABLE |
3899 | if (types & EV_IDLE) |
4508 | if (types & EV_IDLE) |
3900 | for (j = NUMPRI; i--; ) |
4509 | for (j = NUMPRI; j--; ) |
3901 | for (i = idlecnt [j]; i--; ) |
4510 | for (i = idlecnt [j]; i--; ) |
3902 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4511 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3903 | #endif |
4512 | #endif |
3904 | |
4513 | |
3905 | #if EV_FORK_ENABLE |
4514 | #if EV_FORK_ENABLE |
… | |
… | |
3958 | |
4567 | |
3959 | #if EV_MULTIPLICITY |
4568 | #if EV_MULTIPLICITY |
3960 | #include "ev_wrap.h" |
4569 | #include "ev_wrap.h" |
3961 | #endif |
4570 | #endif |
3962 | |
4571 | |
3963 | EV_CPP(}) |
|
|
3964 | |
|
|