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Comparing libev/ev.c (file contents):
Revision 1.370 by root, Sun Jan 30 19:05:41 2011 UTC vs.
Revision 1.446 by root, Mon Jun 11 12:50:50 2012 UTC

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 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
53
48# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
49# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
50# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
51# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
52# define EV_USE_REALTIME 0 58# define EV_USE_REALTIME 0
53# endif 59# endif
54# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
55# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
56# endif 62# endif
57# endif 63# endif
58# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
59# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
60# endif 66# endif
61 67
62# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
63# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
156# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
157# endif 163# endif
158 164
159#endif 165#endif
160 166
161#include <math.h>
162#include <stdlib.h> 167#include <stdlib.h>
163#include <string.h> 168#include <string.h>
164#include <fcntl.h> 169#include <fcntl.h>
165#include <stddef.h> 170#include <stddef.h>
166 171
… …
178# include EV_H 183# include EV_H
179#else 184#else
180# include "ev.h" 185# include "ev.h"
181#endif 186#endif
182 187
183EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
184 198
185#ifndef _WIN32 199#ifndef _WIN32
186# include <sys/time.h> 200# include <sys/time.h>
187# include <sys/wait.h> 201# include <sys/wait.h>
188# include <unistd.h> 202# include <unistd.h>
189#else 203#else
190# include <io.h> 204# include <io.h>
191# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
192# include <windows.h> 207# include <windows.h>
193# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
194# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
195# endif 210# endif
196# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
205#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
206 221
207/* 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 */
208 223
209/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG) 225#if defined EV_NSIG
211/* use what's provided */ 226/* use what's provided */
212#elif defined (NSIG) 227#elif defined NSIG
213# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
214#elif defined(_NSIG) 229#elif defined _NSIG
215# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX) 231#elif defined SIGMAX
217# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX) 233#elif defined SIG_MAX
219# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
221# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG) 237#elif defined MAXSIG
223# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG) 239#elif defined MAX_SIG
225# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig) 243#elif defined _sys_nsig
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else 245#else
231# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
234# define EV_NSIG 65 249# define EV_NSIG 65
235#endif 250#endif
236 251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
254#endif
255
237#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
238# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
240# else 259# else
241# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
242# endif 261# endif
243#endif 262#endif
244 263
245#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
247# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
248# else 267# else
249# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
250# endif 269# endif
251#endif 270#endif
… …
341#endif 360#endif
342 361
343/* 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, */
344/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
345#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
346# include <syscall.h> 365# include <sys/syscall.h>
347# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
348# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
349# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
351# else 370# else
… …
377# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
378#endif 397#endif
379 398
380#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
381/* 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 */
382# if !defined(_WIN32) && !defined(__hpux) 401# if !defined _WIN32 && !defined __hpux
383# include <sys/select.h> 402# include <sys/select.h>
384# endif 403# endif
385#endif 404#endif
386 405
387#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
… …
390/* 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 */
391# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
392# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
393# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
394# endif 413# endif
395#endif
396
397#if EV_SELECT_IS_WINSOCKET
398# include <winsock.h>
399#endif 414#endif
400 415
401#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
402/* 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 */
403# include <stdint.h> 418# include <stdint.h>
… …
443#else 458#else
444# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
445#endif 460#endif
446 461
447/* 462/*
448 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
449 * It is added to ev_rt_now when scheduling periodics
450 * to ensure progress, time-wise, even when rounding
451 * errors are against us.
452 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
453 * Better solutions welcome.
454 */ 465 */
455#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
456 468
457#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
458#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) */
459 471
460#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)
461#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)
462 474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
463#if __GNUC__ >= 4 519 #if __GNUC__
464# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
465# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
535 typedef intptr_t ptrdiff_t;
466#else 536#else
467# define expect(expr,value) (expr) 537 #include <inttypes.h>
468# define noinline 538 #if UINTMAX_MAX > 0xffffffffU
469# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 539 #define ECB_PTRSIZE 8
470# define inline 540 #else
541 #define ECB_PTRSIZE 4
542 #endif
471# endif 543#endif
544
545/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place.
551 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0
555 #else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
472#endif 557 #endif
558#endif
473 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L)
565
566/*****************************************************************************/
567
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
570
571#if ECB_NO_THREADS
572 #define ECB_NO_SMP 1
573#endif
574
575#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0)
577#endif
578
579#ifndef ECB_MEMORY_FENCE
580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
581 #if __i386 || __i386__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
593 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__
598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
605 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
612 #endif
613 #endif
614#endif
615
616#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #define ECB_MEMORY_FENCE __sync_synchronize ()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
630 #elif defined _WIN32
631 #include <WinNT.h>
632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #include <mbarrier.h>
635 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
637 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
638 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync ()
640 #endif
641#endif
642
643#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
655 #endif
656#endif
657
658#ifndef ECB_MEMORY_FENCE
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
704typedef 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. */
474#define expect_false(expr) expect ((expr) != 0, 0) 756#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
475#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
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
849{
850 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852}
853
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
855ecb_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
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
866ecb_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 */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
880ecb_function_ int
881ecb_popcount64 (uint64_t x)
882{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884}
885
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
887ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
888ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
889ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
890ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
891ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
892ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
893ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
894
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
896ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
897ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
898ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
899ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
900ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
901ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
902ecb_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
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
943ecb_inline unsigned char
944ecb_byteorder_helper (void)
945{
946 const uint32_t u = 0x11223344;
947 return *(unsigned char *)&u;
948}
949
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
953ecb_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
476#define inline_size static inline 1013#define inline_size ecb_inline
477 1014
478#if EV_FEATURE_CODE 1015#if EV_FEATURE_CODE
479# define inline_speed static inline 1016# define inline_speed ecb_inline
480#else 1017#else
481# define inline_speed static noinline 1018# define inline_speed static noinline
482#endif 1019#endif
483 1020
484#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
523# include "ev_win32.c" 1060# include "ev_win32.c"
524#endif 1061#endif
525 1062
526/*****************************************************************************/ 1063/*****************************************************************************/
527 1064
1065/* define a suitable floor function (only used by periodics atm) */
1066
1067#if EV_USE_FLOOR
1068# include <math.h>
1069# define ev_floor(v) floor (v)
1070#else
1071
1072#include <float.h>
1073
1074/* a floor() replacement function, should be independent of ev_tstamp type */
1075static ev_tstamp noinline
1076ev_floor (ev_tstamp v)
1077{
1078 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif
1084
1085 /* argument too large for an unsigned long? */
1086 if (expect_false (v >= shift))
1087 {
1088 ev_tstamp f;
1089
1090 if (v == v - 1.)
1091 return v; /* very large number */
1092
1093 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f);
1095 }
1096
1097 /* special treatment for negative args? */
1098 if (expect_false (v < 0.))
1099 {
1100 ev_tstamp f = -ev_floor (-v);
1101
1102 return f - (f == v ? 0 : 1);
1103 }
1104
1105 /* fits into an unsigned long */
1106 return (unsigned long)v;
1107}
1108
1109#endif
1110
1111/*****************************************************************************/
1112
528#ifdef __linux 1113#ifdef __linux
529# include <sys/utsname.h> 1114# include <sys/utsname.h>
530#endif 1115#endif
531 1116
532static unsigned int noinline 1117static unsigned int noinline ecb_cold
533ev_linux_version (void) 1118ev_linux_version (void)
534{ 1119{
535#ifdef __linux 1120#ifdef __linux
536 unsigned int v = 0; 1121 unsigned int v = 0;
537 struct utsname buf; 1122 struct utsname buf;
… …
566} 1151}
567 1152
568/*****************************************************************************/ 1153/*****************************************************************************/
569 1154
570#if EV_AVOID_STDIO 1155#if EV_AVOID_STDIO
571static void noinline 1156static void noinline ecb_cold
572ev_printerr (const char *msg) 1157ev_printerr (const char *msg)
573{ 1158{
574 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
575} 1160}
576#endif 1161#endif
577 1162
578static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
579 1164
580void 1165void ecb_cold
581ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
582{ 1167{
583 syserr_cb = cb; 1168 syserr_cb = cb;
584} 1169}
585 1170
586static void noinline 1171static void noinline ecb_cold
587ev_syserr (const char *msg) 1172ev_syserr (const char *msg)
588{ 1173{
589 if (!msg) 1174 if (!msg)
590 msg = "(libev) system error"; 1175 msg = "(libev) system error";
591 1176
… …
604 abort (); 1189 abort ();
605 } 1190 }
606} 1191}
607 1192
608static void * 1193static void *
609ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
610{ 1195{
611#if __GLIBC__ 1196#if __GLIBC__
612 return realloc (ptr, size); 1197 return realloc (ptr, size);
613#else 1198#else
614 /* some systems, notably openbsd and darwin, fail to properly 1199 /* some systems, notably openbsd and darwin, fail to properly
… …
622 free (ptr); 1207 free (ptr);
623 return 0; 1208 return 0;
624#endif 1209#endif
625} 1210}
626 1211
627static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1212static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
628 1213
629void 1214void ecb_cold
630ev_set_allocator (void *(*cb)(void *ptr, long size)) 1215ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
631{ 1216{
632 alloc = cb; 1217 alloc = cb;
633} 1218}
634 1219
635inline_speed void * 1220inline_speed void *
… …
723 #undef VAR 1308 #undef VAR
724 }; 1309 };
725 #include "ev_wrap.h" 1310 #include "ev_wrap.h"
726 1311
727 static struct ev_loop default_loop_struct; 1312 static struct ev_loop default_loop_struct;
728 struct ev_loop *ev_default_loop_ptr; 1313 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
729 1314
730#else 1315#else
731 1316
732 ev_tstamp ev_rt_now; 1317 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
733 #define VAR(name,decl) static decl; 1318 #define VAR(name,decl) static decl;
734 #include "ev_vars.h" 1319 #include "ev_vars.h"
735 #undef VAR 1320 #undef VAR
736 1321
737 static int ev_default_loop_ptr; 1322 static int ev_default_loop_ptr;
… …
752 1337
753/*****************************************************************************/ 1338/*****************************************************************************/
754 1339
755#ifndef EV_HAVE_EV_TIME 1340#ifndef EV_HAVE_EV_TIME
756ev_tstamp 1341ev_tstamp
757ev_time (void) 1342ev_time (void) EV_THROW
758{ 1343{
759#if EV_USE_REALTIME 1344#if EV_USE_REALTIME
760 if (expect_true (have_realtime)) 1345 if (expect_true (have_realtime))
761 { 1346 {
762 struct timespec ts; 1347 struct timespec ts;
… …
786 return ev_time (); 1371 return ev_time ();
787} 1372}
788 1373
789#if EV_MULTIPLICITY 1374#if EV_MULTIPLICITY
790ev_tstamp 1375ev_tstamp
791ev_now (EV_P) 1376ev_now (EV_P) EV_THROW
792{ 1377{
793 return ev_rt_now; 1378 return ev_rt_now;
794} 1379}
795#endif 1380#endif
796 1381
797void 1382void
798ev_sleep (ev_tstamp delay) 1383ev_sleep (ev_tstamp delay) EV_THROW
799{ 1384{
800 if (delay > 0.) 1385 if (delay > 0.)
801 { 1386 {
802#if EV_USE_NANOSLEEP 1387#if EV_USE_NANOSLEEP
803 struct timespec ts; 1388 struct timespec ts;
804 1389
805 EV_TS_SET (ts, delay); 1390 EV_TS_SET (ts, delay);
806 nanosleep (&ts, 0); 1391 nanosleep (&ts, 0);
807#elif defined(_WIN32) 1392#elif defined _WIN32
808 Sleep ((unsigned long)(delay * 1e3)); 1393 Sleep ((unsigned long)(delay * 1e3));
809#else 1394#else
810 struct timeval tv; 1395 struct timeval tv;
811 1396
812 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1397 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
816 select (0, 0, 0, 0, &tv); 1401 select (0, 0, 0, 0, &tv);
817#endif 1402#endif
818 } 1403 }
819} 1404}
820 1405
821inline_speed int
822ev_timeout_to_ms (ev_tstamp timeout)
823{
824 int ms = timeout * 1000. + .999999;
825
826 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
827}
828
829/*****************************************************************************/ 1406/*****************************************************************************/
830 1407
831#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1408#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
832 1409
833/* find a suitable new size for the given array, */ 1410/* find a suitable new size for the given array, */
… …
839 1416
840 do 1417 do
841 ncur <<= 1; 1418 ncur <<= 1;
842 while (cnt > ncur); 1419 while (cnt > ncur);
843 1420
844 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1421 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
845 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1422 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
846 { 1423 {
847 ncur *= elem; 1424 ncur *= elem;
848 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1425 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
849 ncur = ncur - sizeof (void *) * 4; 1426 ncur = ncur - sizeof (void *) * 4;
… …
851 } 1428 }
852 1429
853 return ncur; 1430 return ncur;
854} 1431}
855 1432
856static noinline void * 1433static void * noinline ecb_cold
857array_realloc (int elem, void *base, int *cur, int cnt) 1434array_realloc (int elem, void *base, int *cur, int cnt)
858{ 1435{
859 *cur = array_nextsize (elem, *cur, cnt); 1436 *cur = array_nextsize (elem, *cur, cnt);
860 return ev_realloc (base, elem * *cur); 1437 return ev_realloc (base, elem * *cur);
861} 1438}
… …
864 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1441 memset ((void *)(base), 0, sizeof (*(base)) * (count))
865 1442
866#define array_needsize(type,base,cur,cnt,init) \ 1443#define array_needsize(type,base,cur,cnt,init) \
867 if (expect_false ((cnt) > (cur))) \ 1444 if (expect_false ((cnt) > (cur))) \
868 { \ 1445 { \
869 int ocur_ = (cur); \ 1446 int ecb_unused ocur_ = (cur); \
870 (base) = (type *)array_realloc \ 1447 (base) = (type *)array_realloc \
871 (sizeof (type), (base), &(cur), (cnt)); \ 1448 (sizeof (type), (base), &(cur), (cnt)); \
872 init ((base) + (ocur_), (cur) - ocur_); \ 1449 init ((base) + (ocur_), (cur) - ocur_); \
873 } 1450 }
874 1451
… …
892pendingcb (EV_P_ ev_prepare *w, int revents) 1469pendingcb (EV_P_ ev_prepare *w, int revents)
893{ 1470{
894} 1471}
895 1472
896void noinline 1473void noinline
897ev_feed_event (EV_P_ void *w, int revents) 1474ev_feed_event (EV_P_ void *w, int revents) EV_THROW
898{ 1475{
899 W w_ = (W)w; 1476 W w_ = (W)w;
900 int pri = ABSPRI (w_); 1477 int pri = ABSPRI (w_);
901 1478
902 if (expect_false (w_->pending)) 1479 if (expect_false (w_->pending))
… …
906 w_->pending = ++pendingcnt [pri]; 1483 w_->pending = ++pendingcnt [pri];
907 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1484 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
908 pendings [pri][w_->pending - 1].w = w_; 1485 pendings [pri][w_->pending - 1].w = w_;
909 pendings [pri][w_->pending - 1].events = revents; 1486 pendings [pri][w_->pending - 1].events = revents;
910 } 1487 }
1488
1489 pendingpri = NUMPRI - 1;
911} 1490}
912 1491
913inline_speed void 1492inline_speed void
914feed_reverse (EV_P_ W w) 1493feed_reverse (EV_P_ W w)
915{ 1494{
… …
961 if (expect_true (!anfd->reify)) 1540 if (expect_true (!anfd->reify))
962 fd_event_nocheck (EV_A_ fd, revents); 1541 fd_event_nocheck (EV_A_ fd, revents);
963} 1542}
964 1543
965void 1544void
966ev_feed_fd_event (EV_P_ int fd, int revents) 1545ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
967{ 1546{
968 if (fd >= 0 && fd < anfdmax) 1547 if (fd >= 0 && fd < anfdmax)
969 fd_event_nocheck (EV_A_ fd, revents); 1548 fd_event_nocheck (EV_A_ fd, revents);
970} 1549}
971 1550
… …
974inline_size void 1553inline_size void
975fd_reify (EV_P) 1554fd_reify (EV_P)
976{ 1555{
977 int i; 1556 int i;
978 1557
1558#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1559 for (i = 0; i < fdchangecnt; ++i)
1560 {
1561 int fd = fdchanges [i];
1562 ANFD *anfd = anfds + fd;
1563
1564 if (anfd->reify & EV__IOFDSET && anfd->head)
1565 {
1566 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1567
1568 if (handle != anfd->handle)
1569 {
1570 unsigned long arg;
1571
1572 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1573
1574 /* handle changed, but fd didn't - we need to do it in two steps */
1575 backend_modify (EV_A_ fd, anfd->events, 0);
1576 anfd->events = 0;
1577 anfd->handle = handle;
1578 }
1579 }
1580 }
1581#endif
1582
979 for (i = 0; i < fdchangecnt; ++i) 1583 for (i = 0; i < fdchangecnt; ++i)
980 { 1584 {
981 int fd = fdchanges [i]; 1585 int fd = fdchanges [i];
982 ANFD *anfd = anfds + fd; 1586 ANFD *anfd = anfds + fd;
983 ev_io *w; 1587 ev_io *w;
… …
985 unsigned char o_events = anfd->events; 1589 unsigned char o_events = anfd->events;
986 unsigned char o_reify = anfd->reify; 1590 unsigned char o_reify = anfd->reify;
987 1591
988 anfd->reify = 0; 1592 anfd->reify = 0;
989 1593
990#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
991 if (o_reify & EV__IOFDSET)
992 {
993 unsigned long arg;
994 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
995 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
996 printf ("oi %d %x\n", fd, anfd->handle);//D
997 }
998#endif
999
1000 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 1594 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1001 { 1595 {
1002 anfd->events = 0; 1596 anfd->events = 0;
1003 1597
1004 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1598 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
1029 fdchanges [fdchangecnt - 1] = fd; 1623 fdchanges [fdchangecnt - 1] = fd;
1030 } 1624 }
1031} 1625}
1032 1626
1033/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1627/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1034inline_speed void 1628inline_speed void ecb_cold
1035fd_kill (EV_P_ int fd) 1629fd_kill (EV_P_ int fd)
1036{ 1630{
1037 ev_io *w; 1631 ev_io *w;
1038 1632
1039 while ((w = (ev_io *)anfds [fd].head)) 1633 while ((w = (ev_io *)anfds [fd].head))
… …
1042 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1636 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1043 } 1637 }
1044} 1638}
1045 1639
1046/* check whether the given fd is actually valid, for error recovery */ 1640/* check whether the given fd is actually valid, for error recovery */
1047inline_size int 1641inline_size int ecb_cold
1048fd_valid (int fd) 1642fd_valid (int fd)
1049{ 1643{
1050#ifdef _WIN32 1644#ifdef _WIN32
1051 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1645 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1052#else 1646#else
1053 return fcntl (fd, F_GETFD) != -1; 1647 return fcntl (fd, F_GETFD) != -1;
1054#endif 1648#endif
1055} 1649}
1056 1650
1057/* called on EBADF to verify fds */ 1651/* called on EBADF to verify fds */
1058static void noinline 1652static void noinline ecb_cold
1059fd_ebadf (EV_P) 1653fd_ebadf (EV_P)
1060{ 1654{
1061 int fd; 1655 int fd;
1062 1656
1063 for (fd = 0; fd < anfdmax; ++fd) 1657 for (fd = 0; fd < anfdmax; ++fd)
… …
1065 if (!fd_valid (fd) && errno == EBADF) 1659 if (!fd_valid (fd) && errno == EBADF)
1066 fd_kill (EV_A_ fd); 1660 fd_kill (EV_A_ fd);
1067} 1661}
1068 1662
1069/* called on ENOMEM in select/poll to kill some fds and retry */ 1663/* called on ENOMEM in select/poll to kill some fds and retry */
1070static void noinline 1664static void noinline ecb_cold
1071fd_enomem (EV_P) 1665fd_enomem (EV_P)
1072{ 1666{
1073 int fd; 1667 int fd;
1074 1668
1075 for (fd = anfdmax; fd--; ) 1669 for (fd = anfdmax; fd--; )
… …
1270 1864
1271/*****************************************************************************/ 1865/*****************************************************************************/
1272 1866
1273#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1867#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1274 1868
1275static void noinline 1869static void noinline ecb_cold
1276evpipe_init (EV_P) 1870evpipe_init (EV_P)
1277{ 1871{
1278 if (!ev_is_active (&pipe_w)) 1872 if (!ev_is_active (&pipe_w))
1279 { 1873 {
1280# if EV_USE_EVENTFD 1874# if EV_USE_EVENTFD
… …
1302 ev_io_start (EV_A_ &pipe_w); 1896 ev_io_start (EV_A_ &pipe_w);
1303 ev_unref (EV_A); /* watcher should not keep loop alive */ 1897 ev_unref (EV_A); /* watcher should not keep loop alive */
1304 } 1898 }
1305} 1899}
1306 1900
1307inline_size void 1901inline_speed void
1308evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1902evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1309{ 1903{
1310 if (!*flag) 1904 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1905
1906 if (expect_true (*flag))
1907 return;
1908
1909 *flag = 1;
1910 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1911
1912 pipe_write_skipped = 1;
1913
1914 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1915
1916 if (pipe_write_wanted)
1311 { 1917 {
1918 int old_errno;
1919
1920 pipe_write_skipped = 0;
1921 ECB_MEMORY_FENCE_RELEASE;
1922
1312 int old_errno = errno; /* save errno because write might clobber it */ 1923 old_errno = errno; /* save errno because write will clobber it */
1313 char dummy;
1314
1315 *flag = 1;
1316 1924
1317#if EV_USE_EVENTFD 1925#if EV_USE_EVENTFD
1318 if (evfd >= 0) 1926 if (evfd >= 0)
1319 { 1927 {
1320 uint64_t counter = 1; 1928 uint64_t counter = 1;
1321 write (evfd, &counter, sizeof (uint64_t)); 1929 write (evfd, &counter, sizeof (uint64_t));
1322 } 1930 }
1323 else 1931 else
1324#endif 1932#endif
1325 /* win32 people keep sending patches that change this write() to send() */ 1933 {
1326 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1934#ifdef _WIN32
1327 /* so when you think this write should be a send instead, please find out */ 1935 WSABUF buf;
1328 /* where your send() is from - it's definitely not the microsoft send, and */ 1936 DWORD sent;
1329 /* tell me. thank you. */ 1937 buf.buf = &buf;
1938 buf.len = 1;
1939 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1940#else
1330 write (evpipe [1], &dummy, 1); 1941 write (evpipe [1], &(evpipe [1]), 1);
1942#endif
1943 }
1331 1944
1332 errno = old_errno; 1945 errno = old_errno;
1333 } 1946 }
1334} 1947}
1335 1948
… …
1338static void 1951static void
1339pipecb (EV_P_ ev_io *iow, int revents) 1952pipecb (EV_P_ ev_io *iow, int revents)
1340{ 1953{
1341 int i; 1954 int i;
1342 1955
1956 if (revents & EV_READ)
1957 {
1343#if EV_USE_EVENTFD 1958#if EV_USE_EVENTFD
1344 if (evfd >= 0) 1959 if (evfd >= 0)
1345 { 1960 {
1346 uint64_t counter; 1961 uint64_t counter;
1347 read (evfd, &counter, sizeof (uint64_t)); 1962 read (evfd, &counter, sizeof (uint64_t));
1348 } 1963 }
1349 else 1964 else
1350#endif 1965#endif
1351 { 1966 {
1352 char dummy; 1967 char dummy[4];
1353 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1968#ifdef _WIN32
1969 WSABUF buf;
1970 DWORD recvd;
1971 DWORD flags = 0;
1972 buf.buf = dummy;
1973 buf.len = sizeof (dummy);
1974 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1975#else
1354 read (evpipe [0], &dummy, 1); 1976 read (evpipe [0], &dummy, sizeof (dummy));
1977#endif
1978 }
1355 } 1979 }
1980
1981 pipe_write_skipped = 0;
1982
1983 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1356 1984
1357#if EV_SIGNAL_ENABLE 1985#if EV_SIGNAL_ENABLE
1358 if (sig_pending) 1986 if (sig_pending)
1359 { 1987 {
1360 sig_pending = 0; 1988 sig_pending = 0;
1989
1990 ECB_MEMORY_FENCE;
1361 1991
1362 for (i = EV_NSIG - 1; i--; ) 1992 for (i = EV_NSIG - 1; i--; )
1363 if (expect_false (signals [i].pending)) 1993 if (expect_false (signals [i].pending))
1364 ev_feed_signal_event (EV_A_ i + 1); 1994 ev_feed_signal_event (EV_A_ i + 1);
1365 } 1995 }
… …
1367 1997
1368#if EV_ASYNC_ENABLE 1998#if EV_ASYNC_ENABLE
1369 if (async_pending) 1999 if (async_pending)
1370 { 2000 {
1371 async_pending = 0; 2001 async_pending = 0;
2002
2003 ECB_MEMORY_FENCE;
1372 2004
1373 for (i = asynccnt; i--; ) 2005 for (i = asynccnt; i--; )
1374 if (asyncs [i]->sent) 2006 if (asyncs [i]->sent)
1375 { 2007 {
1376 asyncs [i]->sent = 0; 2008 asyncs [i]->sent = 0;
2009 ECB_MEMORY_FENCE_RELEASE;
1377 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2010 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1378 } 2011 }
1379 } 2012 }
1380#endif 2013#endif
1381} 2014}
1382 2015
1383/*****************************************************************************/ 2016/*****************************************************************************/
1384 2017
1385void 2018void
1386ev_feed_signal (int signum) 2019ev_feed_signal (int signum) EV_THROW
1387{ 2020{
1388#if EV_MULTIPLICITY 2021#if EV_MULTIPLICITY
1389 EV_P = signals [signum - 1].loop; 2022 EV_P = signals [signum - 1].loop;
1390 2023
1391 if (!EV_A) 2024 if (!EV_A)
1392 return; 2025 return;
1393#endif 2026#endif
1394 2027
2028 if (!ev_active (&pipe_w))
2029 return;
2030
1395 signals [signum - 1].pending = 1; 2031 signals [signum - 1].pending = 1;
1396 evpipe_write (EV_A_ &sig_pending); 2032 evpipe_write (EV_A_ &sig_pending);
1397} 2033}
1398 2034
1399static void 2035static void
… …
1405 2041
1406 ev_feed_signal (signum); 2042 ev_feed_signal (signum);
1407} 2043}
1408 2044
1409void noinline 2045void noinline
1410ev_feed_signal_event (EV_P_ int signum) 2046ev_feed_signal_event (EV_P_ int signum) EV_THROW
1411{ 2047{
1412 WL w; 2048 WL w;
1413 2049
1414 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2050 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1415 return; 2051 return;
1416 2052
1417 --signum; 2053 --signum;
1418 2054
1419#if EV_MULTIPLICITY 2055#if EV_MULTIPLICITY
… …
1423 if (expect_false (signals [signum].loop != EV_A)) 2059 if (expect_false (signals [signum].loop != EV_A))
1424 return; 2060 return;
1425#endif 2061#endif
1426 2062
1427 signals [signum].pending = 0; 2063 signals [signum].pending = 0;
2064 ECB_MEMORY_FENCE_RELEASE;
1428 2065
1429 for (w = signals [signum].head; w; w = w->next) 2066 for (w = signals [signum].head; w; w = w->next)
1430 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2067 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1431} 2068}
1432 2069
… …
1530#endif 2167#endif
1531#if EV_USE_SELECT 2168#if EV_USE_SELECT
1532# include "ev_select.c" 2169# include "ev_select.c"
1533#endif 2170#endif
1534 2171
1535int 2172int ecb_cold
1536ev_version_major (void) 2173ev_version_major (void) EV_THROW
1537{ 2174{
1538 return EV_VERSION_MAJOR; 2175 return EV_VERSION_MAJOR;
1539} 2176}
1540 2177
1541int 2178int ecb_cold
1542ev_version_minor (void) 2179ev_version_minor (void) EV_THROW
1543{ 2180{
1544 return EV_VERSION_MINOR; 2181 return EV_VERSION_MINOR;
1545} 2182}
1546 2183
1547/* return true if we are running with elevated privileges and should ignore env variables */ 2184/* return true if we are running with elevated privileges and should ignore env variables */
1548int inline_size 2185int inline_size ecb_cold
1549enable_secure (void) 2186enable_secure (void)
1550{ 2187{
1551#ifdef _WIN32 2188#ifdef _WIN32
1552 return 0; 2189 return 0;
1553#else 2190#else
1554 return getuid () != geteuid () 2191 return getuid () != geteuid ()
1555 || getgid () != getegid (); 2192 || getgid () != getegid ();
1556#endif 2193#endif
1557} 2194}
1558 2195
1559unsigned int 2196unsigned int ecb_cold
1560ev_supported_backends (void) 2197ev_supported_backends (void) EV_THROW
1561{ 2198{
1562 unsigned int flags = 0; 2199 unsigned int flags = 0;
1563 2200
1564 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2201 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1565 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2202 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1568 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2205 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1569 2206
1570 return flags; 2207 return flags;
1571} 2208}
1572 2209
1573unsigned int 2210unsigned int ecb_cold
1574ev_recommended_backends (void) 2211ev_recommended_backends (void) EV_THROW
1575{ 2212{
1576 unsigned int flags = ev_supported_backends (); 2213 unsigned int flags = ev_supported_backends ();
1577 2214
1578#ifndef __NetBSD__ 2215#ifndef __NetBSD__
1579 /* kqueue is borked on everything but netbsd apparently */ 2216 /* kqueue is borked on everything but netbsd apparently */
… …
1590#endif 2227#endif
1591 2228
1592 return flags; 2229 return flags;
1593} 2230}
1594 2231
1595unsigned int 2232unsigned int ecb_cold
1596ev_embeddable_backends (void) 2233ev_embeddable_backends (void) EV_THROW
1597{ 2234{
1598 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2235 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1599 2236
1600 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2237 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1601 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2238 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1603 2240
1604 return flags; 2241 return flags;
1605} 2242}
1606 2243
1607unsigned int 2244unsigned int
1608ev_backend (EV_P) 2245ev_backend (EV_P) EV_THROW
1609{ 2246{
1610 return backend; 2247 return backend;
1611} 2248}
1612 2249
1613#if EV_FEATURE_API 2250#if EV_FEATURE_API
1614unsigned int 2251unsigned int
1615ev_iteration (EV_P) 2252ev_iteration (EV_P) EV_THROW
1616{ 2253{
1617 return loop_count; 2254 return loop_count;
1618} 2255}
1619 2256
1620unsigned int 2257unsigned int
1621ev_depth (EV_P) 2258ev_depth (EV_P) EV_THROW
1622{ 2259{
1623 return loop_depth; 2260 return loop_depth;
1624} 2261}
1625 2262
1626void 2263void
1627ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2264ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1628{ 2265{
1629 io_blocktime = interval; 2266 io_blocktime = interval;
1630} 2267}
1631 2268
1632void 2269void
1633ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2270ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1634{ 2271{
1635 timeout_blocktime = interval; 2272 timeout_blocktime = interval;
1636} 2273}
1637 2274
1638void 2275void
1639ev_set_userdata (EV_P_ void *data) 2276ev_set_userdata (EV_P_ void *data) EV_THROW
1640{ 2277{
1641 userdata = data; 2278 userdata = data;
1642} 2279}
1643 2280
1644void * 2281void *
1645ev_userdata (EV_P) 2282ev_userdata (EV_P) EV_THROW
1646{ 2283{
1647 return userdata; 2284 return userdata;
1648} 2285}
1649 2286
2287void
1650void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2288ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1651{ 2289{
1652 invoke_cb = invoke_pending_cb; 2290 invoke_cb = invoke_pending_cb;
1653} 2291}
1654 2292
2293void
1655void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2294ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1656{ 2295{
1657 release_cb = release; 2296 release_cb = release;
1658 acquire_cb = acquire; 2297 acquire_cb = acquire;
1659} 2298}
1660#endif 2299#endif
1661 2300
1662/* initialise a loop structure, must be zero-initialised */ 2301/* initialise a loop structure, must be zero-initialised */
1663static void noinline 2302static void noinline ecb_cold
1664loop_init (EV_P_ unsigned int flags) 2303loop_init (EV_P_ unsigned int flags) EV_THROW
1665{ 2304{
1666 if (!backend) 2305 if (!backend)
1667 { 2306 {
1668 origflags = flags; 2307 origflags = flags;
1669 2308
… …
1696 if (!(flags & EVFLAG_NOENV) 2335 if (!(flags & EVFLAG_NOENV)
1697 && !enable_secure () 2336 && !enable_secure ()
1698 && getenv ("LIBEV_FLAGS")) 2337 && getenv ("LIBEV_FLAGS"))
1699 flags = atoi (getenv ("LIBEV_FLAGS")); 2338 flags = atoi (getenv ("LIBEV_FLAGS"));
1700 2339
1701 ev_rt_now = ev_time (); 2340 ev_rt_now = ev_time ();
1702 mn_now = get_clock (); 2341 mn_now = get_clock ();
1703 now_floor = mn_now; 2342 now_floor = mn_now;
1704 rtmn_diff = ev_rt_now - mn_now; 2343 rtmn_diff = ev_rt_now - mn_now;
1705#if EV_FEATURE_API 2344#if EV_FEATURE_API
1706 invoke_cb = ev_invoke_pending; 2345 invoke_cb = ev_invoke_pending;
1707#endif 2346#endif
1708 2347
1709 io_blocktime = 0.; 2348 io_blocktime = 0.;
1710 timeout_blocktime = 0.; 2349 timeout_blocktime = 0.;
1711 backend = 0; 2350 backend = 0;
1712 backend_fd = -1; 2351 backend_fd = -1;
1713 sig_pending = 0; 2352 sig_pending = 0;
1714#if EV_ASYNC_ENABLE 2353#if EV_ASYNC_ENABLE
1715 async_pending = 0; 2354 async_pending = 0;
1716#endif 2355#endif
2356 pipe_write_skipped = 0;
2357 pipe_write_wanted = 0;
1717#if EV_USE_INOTIFY 2358#if EV_USE_INOTIFY
1718 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2359 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1719#endif 2360#endif
1720#if EV_USE_SIGNALFD 2361#if EV_USE_SIGNALFD
1721 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2362 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1722#endif 2363#endif
1723 2364
1724 if (!(flags & EVBACKEND_MASK)) 2365 if (!(flags & EVBACKEND_MASK))
1725 flags |= ev_recommended_backends (); 2366 flags |= ev_recommended_backends ();
1726 2367
… …
1751#endif 2392#endif
1752 } 2393 }
1753} 2394}
1754 2395
1755/* free up a loop structure */ 2396/* free up a loop structure */
1756void 2397void ecb_cold
1757ev_loop_destroy (EV_P) 2398ev_loop_destroy (EV_P)
1758{ 2399{
1759 int i; 2400 int i;
1760 2401
1761#if EV_MULTIPLICITY 2402#if EV_MULTIPLICITY
… …
1772 EV_INVOKE_PENDING; 2413 EV_INVOKE_PENDING;
1773 } 2414 }
1774#endif 2415#endif
1775 2416
1776#if EV_CHILD_ENABLE 2417#if EV_CHILD_ENABLE
1777 if (ev_is_active (&childev)) 2418 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1778 { 2419 {
1779 ev_ref (EV_A); /* child watcher */ 2420 ev_ref (EV_A); /* child watcher */
1780 ev_signal_stop (EV_A_ &childev); 2421 ev_signal_stop (EV_A_ &childev);
1781 } 2422 }
1782#endif 2423#endif
… …
1891 infy_fork (EV_A); 2532 infy_fork (EV_A);
1892#endif 2533#endif
1893 2534
1894 if (ev_is_active (&pipe_w)) 2535 if (ev_is_active (&pipe_w))
1895 { 2536 {
1896 /* this "locks" the handlers against writing to the pipe */ 2537 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1897 /* while we modify the fd vars */
1898 sig_pending = 1;
1899#if EV_ASYNC_ENABLE
1900 async_pending = 1;
1901#endif
1902 2538
1903 ev_ref (EV_A); 2539 ev_ref (EV_A);
1904 ev_io_stop (EV_A_ &pipe_w); 2540 ev_io_stop (EV_A_ &pipe_w);
1905 2541
1906#if EV_USE_EVENTFD 2542#if EV_USE_EVENTFD
… …
1914 EV_WIN32_CLOSE_FD (evpipe [1]); 2550 EV_WIN32_CLOSE_FD (evpipe [1]);
1915 } 2551 }
1916 2552
1917#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1918 evpipe_init (EV_A); 2554 evpipe_init (EV_A);
1919 /* now iterate over everything, in case we missed something */ 2555 /* iterate over everything, in case we missed something before */
1920 pipecb (EV_A_ &pipe_w, EV_READ); 2556 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1921#endif 2557#endif
1922 } 2558 }
1923 2559
1924 postfork = 0; 2560 postfork = 0;
1925} 2561}
1926 2562
1927#if EV_MULTIPLICITY 2563#if EV_MULTIPLICITY
1928 2564
1929struct ev_loop * 2565struct ev_loop * ecb_cold
1930ev_loop_new (unsigned int flags) 2566ev_loop_new (unsigned int flags) EV_THROW
1931{ 2567{
1932 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2568 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1933 2569
1934 memset (EV_A, 0, sizeof (struct ev_loop)); 2570 memset (EV_A, 0, sizeof (struct ev_loop));
1935 loop_init (EV_A_ flags); 2571 loop_init (EV_A_ flags);
… …
1942} 2578}
1943 2579
1944#endif /* multiplicity */ 2580#endif /* multiplicity */
1945 2581
1946#if EV_VERIFY 2582#if EV_VERIFY
1947static void noinline 2583static void noinline ecb_cold
1948verify_watcher (EV_P_ W w) 2584verify_watcher (EV_P_ W w)
1949{ 2585{
1950 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2586 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1951 2587
1952 if (w->pending) 2588 if (w->pending)
1953 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2589 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1954} 2590}
1955 2591
1956static void noinline 2592static void noinline ecb_cold
1957verify_heap (EV_P_ ANHE *heap, int N) 2593verify_heap (EV_P_ ANHE *heap, int N)
1958{ 2594{
1959 int i; 2595 int i;
1960 2596
1961 for (i = HEAP0; i < N + HEAP0; ++i) 2597 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1966 2602
1967 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2603 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1968 } 2604 }
1969} 2605}
1970 2606
1971static void noinline 2607static void noinline ecb_cold
1972array_verify (EV_P_ W *ws, int cnt) 2608array_verify (EV_P_ W *ws, int cnt)
1973{ 2609{
1974 while (cnt--) 2610 while (cnt--)
1975 { 2611 {
1976 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2612 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
1978 } 2614 }
1979} 2615}
1980#endif 2616#endif
1981 2617
1982#if EV_FEATURE_API 2618#if EV_FEATURE_API
1983void 2619void ecb_cold
1984ev_verify (EV_P) 2620ev_verify (EV_P) EV_THROW
1985{ 2621{
1986#if EV_VERIFY 2622#if EV_VERIFY
1987 int i; 2623 int i;
1988 WL w; 2624 WL w, w2;
1989 2625
1990 assert (activecnt >= -1); 2626 assert (activecnt >= -1);
1991 2627
1992 assert (fdchangemax >= fdchangecnt); 2628 assert (fdchangemax >= fdchangecnt);
1993 for (i = 0; i < fdchangecnt; ++i) 2629 for (i = 0; i < fdchangecnt; ++i)
1994 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2630 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1995 2631
1996 assert (anfdmax >= 0); 2632 assert (anfdmax >= 0);
1997 for (i = 0; i < anfdmax; ++i) 2633 for (i = 0; i < anfdmax; ++i)
2634 {
2635 int j = 0;
2636
1998 for (w = anfds [i].head; w; w = w->next) 2637 for (w = w2 = anfds [i].head; w; w = w->next)
1999 { 2638 {
2000 verify_watcher (EV_A_ (W)w); 2639 verify_watcher (EV_A_ (W)w);
2640
2641 if (j++ & 1)
2642 {
2643 assert (("libev: io watcher list contains a loop", w != w2));
2644 w2 = w2->next;
2645 }
2646
2001 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2647 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2002 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2648 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2003 } 2649 }
2650 }
2004 2651
2005 assert (timermax >= timercnt); 2652 assert (timermax >= timercnt);
2006 verify_heap (EV_A_ timers, timercnt); 2653 verify_heap (EV_A_ timers, timercnt);
2007 2654
2008#if EV_PERIODIC_ENABLE 2655#if EV_PERIODIC_ENABLE
… …
2054#endif 2701#endif
2055} 2702}
2056#endif 2703#endif
2057 2704
2058#if EV_MULTIPLICITY 2705#if EV_MULTIPLICITY
2059struct ev_loop * 2706struct ev_loop * ecb_cold
2060#else 2707#else
2061int 2708int
2062#endif 2709#endif
2063ev_default_loop (unsigned int flags) 2710ev_default_loop (unsigned int flags) EV_THROW
2064{ 2711{
2065 if (!ev_default_loop_ptr) 2712 if (!ev_default_loop_ptr)
2066 { 2713 {
2067#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
2068 EV_P = ev_default_loop_ptr = &default_loop_struct; 2715 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2087 2734
2088 return ev_default_loop_ptr; 2735 return ev_default_loop_ptr;
2089} 2736}
2090 2737
2091void 2738void
2092ev_loop_fork (EV_P) 2739ev_loop_fork (EV_P) EV_THROW
2093{ 2740{
2094 postfork = 1; /* must be in line with ev_default_fork */ 2741 postfork = 1;
2095} 2742}
2096 2743
2097/*****************************************************************************/ 2744/*****************************************************************************/
2098 2745
2099void 2746void
… …
2101{ 2748{
2102 EV_CB_INVOKE ((W)w, revents); 2749 EV_CB_INVOKE ((W)w, revents);
2103} 2750}
2104 2751
2105unsigned int 2752unsigned int
2106ev_pending_count (EV_P) 2753ev_pending_count (EV_P) EV_THROW
2107{ 2754{
2108 int pri; 2755 int pri;
2109 unsigned int count = 0; 2756 unsigned int count = 0;
2110 2757
2111 for (pri = NUMPRI; pri--; ) 2758 for (pri = NUMPRI; pri--; )
… …
2115} 2762}
2116 2763
2117void noinline 2764void noinline
2118ev_invoke_pending (EV_P) 2765ev_invoke_pending (EV_P)
2119{ 2766{
2120 int pri; 2767 pendingpri = NUMPRI;
2121 2768
2122 for (pri = NUMPRI; pri--; ) 2769 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2770 {
2771 --pendingpri;
2772
2123 while (pendingcnt [pri]) 2773 while (pendingcnt [pendingpri])
2124 { 2774 {
2125 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2775 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2126 2776
2127 p->w->pending = 0; 2777 p->w->pending = 0;
2128 EV_CB_INVOKE (p->w, p->events); 2778 EV_CB_INVOKE (p->w, p->events);
2129 EV_FREQUENT_CHECK; 2779 EV_FREQUENT_CHECK;
2130 } 2780 }
2781 }
2131} 2782}
2132 2783
2133#if EV_IDLE_ENABLE 2784#if EV_IDLE_ENABLE
2134/* make idle watchers pending. this handles the "call-idle */ 2785/* make idle watchers pending. this handles the "call-idle */
2135/* only when higher priorities are idle" logic */ 2786/* only when higher priorities are idle" logic */
… …
2193 } 2844 }
2194} 2845}
2195 2846
2196#if EV_PERIODIC_ENABLE 2847#if EV_PERIODIC_ENABLE
2197 2848
2198inline_speed 2849static void noinline
2199periodic_recalc (EV_P_ ev_periodic *w) 2850periodic_recalc (EV_P_ ev_periodic *w)
2200{ 2851{
2201 /* TODO: use slow but potentially more correct incremental algo, */ 2852 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2202 /* also do not rely on ceil */ 2853 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2203 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2854
2855 /* the above almost always errs on the low side */
2856 while (at <= ev_rt_now)
2857 {
2858 ev_tstamp nat = at + w->interval;
2859
2860 /* when resolution fails us, we use ev_rt_now */
2861 if (expect_false (nat == at))
2862 {
2863 at = ev_rt_now;
2864 break;
2865 }
2866
2867 at = nat;
2868 }
2869
2870 ev_at (w) = at;
2204} 2871}
2205 2872
2206/* make periodics pending */ 2873/* make periodics pending */
2207inline_size void 2874inline_size void
2208periodics_reify (EV_P) 2875periodics_reify (EV_P)
2209{ 2876{
2210 EV_FREQUENT_CHECK; 2877 EV_FREQUENT_CHECK;
2211 2878
2212 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2879 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2213 { 2880 {
2214 int feed_count = 0;
2215
2216 do 2881 do
2217 { 2882 {
2218 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2883 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2219 2884
2220 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2885 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2230 downheap (periodics, periodiccnt, HEAP0); 2895 downheap (periodics, periodiccnt, HEAP0);
2231 } 2896 }
2232 else if (w->interval) 2897 else if (w->interval)
2233 { 2898 {
2234 periodic_recalc (EV_A_ w); 2899 periodic_recalc (EV_A_ w);
2235
2236 /* if next trigger time is not sufficiently in the future, put it there */
2237 /* this might happen because of floating point inexactness */
2238 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2239 {
2240 ev_at (w) += w->interval;
2241
2242 /* if interval is unreasonably low we might still have a time in the past */
2243 /* so correct this. this will make the periodic very inexact, but the user */
2244 /* has effectively asked to get triggered more often than possible */
2245 if (ev_at (w) < ev_rt_now)
2246 ev_at (w) = ev_rt_now;
2247 }
2248
2249 ANHE_at_cache (periodics [HEAP0]); 2900 ANHE_at_cache (periodics [HEAP0]);
2250 downheap (periodics, periodiccnt, HEAP0); 2901 downheap (periodics, periodiccnt, HEAP0);
2251 } 2902 }
2252 else 2903 else
2253 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2904 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2261 } 2912 }
2262} 2913}
2263 2914
2264/* simply recalculate all periodics */ 2915/* simply recalculate all periodics */
2265/* TODO: maybe ensure that at least one event happens when jumping forward? */ 2916/* TODO: maybe ensure that at least one event happens when jumping forward? */
2266static void noinline 2917static void noinline ecb_cold
2267periodics_reschedule (EV_P) 2918periodics_reschedule (EV_P)
2268{ 2919{
2269 int i; 2920 int i;
2270 2921
2271 /* adjust periodics after time jump */ 2922 /* adjust periodics after time jump */
… …
2284 reheap (periodics, periodiccnt); 2935 reheap (periodics, periodiccnt);
2285} 2936}
2286#endif 2937#endif
2287 2938
2288/* adjust all timers by a given offset */ 2939/* adjust all timers by a given offset */
2289static void noinline 2940static void noinline ecb_cold
2290timers_reschedule (EV_P_ ev_tstamp adjust) 2941timers_reschedule (EV_P_ ev_tstamp adjust)
2291{ 2942{
2292 int i; 2943 int i;
2293 2944
2294 for (i = 0; i < timercnt; ++i) 2945 for (i = 0; i < timercnt; ++i)
… …
2331 * doesn't hurt either as we only do this on time-jumps or 2982 * doesn't hurt either as we only do this on time-jumps or
2332 * in the unlikely event of having been preempted here. 2983 * in the unlikely event of having been preempted here.
2333 */ 2984 */
2334 for (i = 4; --i; ) 2985 for (i = 4; --i; )
2335 { 2986 {
2987 ev_tstamp diff;
2336 rtmn_diff = ev_rt_now - mn_now; 2988 rtmn_diff = ev_rt_now - mn_now;
2337 2989
2990 diff = odiff - rtmn_diff;
2991
2338 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2992 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2339 return; /* all is well */ 2993 return; /* all is well */
2340 2994
2341 ev_rt_now = ev_time (); 2995 ev_rt_now = ev_time ();
2342 mn_now = get_clock (); 2996 mn_now = get_clock ();
2343 now_floor = mn_now; 2997 now_floor = mn_now;
… …
2365 3019
2366 mn_now = ev_rt_now; 3020 mn_now = ev_rt_now;
2367 } 3021 }
2368} 3022}
2369 3023
2370void 3024int
2371ev_run (EV_P_ int flags) 3025ev_run (EV_P_ int flags)
2372{ 3026{
2373#if EV_FEATURE_API 3027#if EV_FEATURE_API
2374 ++loop_depth; 3028 ++loop_depth;
2375#endif 3029#endif
… …
2433 ev_tstamp prev_mn_now = mn_now; 3087 ev_tstamp prev_mn_now = mn_now;
2434 3088
2435 /* update time to cancel out callback processing overhead */ 3089 /* update time to cancel out callback processing overhead */
2436 time_update (EV_A_ 1e100); 3090 time_update (EV_A_ 1e100);
2437 3091
3092 /* from now on, we want a pipe-wake-up */
3093 pipe_write_wanted = 1;
3094
3095 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3096
2438 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) 3097 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2439 { 3098 {
2440 waittime = MAX_BLOCKTIME; 3099 waittime = MAX_BLOCKTIME;
2441 3100
2442 if (timercnt) 3101 if (timercnt)
2443 { 3102 {
2444 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3103 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2445 if (waittime > to) waittime = to; 3104 if (waittime > to) waittime = to;
2446 } 3105 }
2447 3106
2448#if EV_PERIODIC_ENABLE 3107#if EV_PERIODIC_ENABLE
2449 if (periodiccnt) 3108 if (periodiccnt)
2450 { 3109 {
2451 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3110 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2452 if (waittime > to) waittime = to; 3111 if (waittime > to) waittime = to;
2453 } 3112 }
2454#endif 3113#endif
2455 3114
2456 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3115 /* don't let timeouts decrease the waittime below timeout_blocktime */
2457 if (expect_false (waittime < timeout_blocktime)) 3116 if (expect_false (waittime < timeout_blocktime))
2458 waittime = timeout_blocktime; 3117 waittime = timeout_blocktime;
3118
3119 /* at this point, we NEED to wait, so we have to ensure */
3120 /* to pass a minimum nonzero value to the backend */
3121 if (expect_false (waittime < backend_mintime))
3122 waittime = backend_mintime;
2459 3123
2460 /* extra check because io_blocktime is commonly 0 */ 3124 /* extra check because io_blocktime is commonly 0 */
2461 if (expect_false (io_blocktime)) 3125 if (expect_false (io_blocktime))
2462 { 3126 {
2463 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3127 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2464 3128
2465 if (sleeptime > waittime - backend_fudge) 3129 if (sleeptime > waittime - backend_mintime)
2466 sleeptime = waittime - backend_fudge; 3130 sleeptime = waittime - backend_mintime;
2467 3131
2468 if (expect_true (sleeptime > 0.)) 3132 if (expect_true (sleeptime > 0.))
2469 { 3133 {
2470 ev_sleep (sleeptime); 3134 ev_sleep (sleeptime);
2471 waittime -= sleeptime; 3135 waittime -= sleeptime;
… …
2478#endif 3142#endif
2479 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3143 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2480 backend_poll (EV_A_ waittime); 3144 backend_poll (EV_A_ waittime);
2481 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3145 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2482 3146
3147 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3148
3149 ECB_MEMORY_FENCE_ACQUIRE;
3150 if (pipe_write_skipped)
3151 {
3152 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3153 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3154 }
3155
3156
2483 /* update ev_rt_now, do magic */ 3157 /* update ev_rt_now, do magic */
2484 time_update (EV_A_ waittime + sleeptime); 3158 time_update (EV_A_ waittime + sleeptime);
2485 } 3159 }
2486 3160
2487 /* queue pending timers and reschedule them */ 3161 /* queue pending timers and reschedule them */
… …
2513 loop_done = EVBREAK_CANCEL; 3187 loop_done = EVBREAK_CANCEL;
2514 3188
2515#if EV_FEATURE_API 3189#if EV_FEATURE_API
2516 --loop_depth; 3190 --loop_depth;
2517#endif 3191#endif
3192
3193 return activecnt;
2518} 3194}
2519 3195
2520void 3196void
2521ev_break (EV_P_ int how) 3197ev_break (EV_P_ int how) EV_THROW
2522{ 3198{
2523 loop_done = how; 3199 loop_done = how;
2524} 3200}
2525 3201
2526void 3202void
2527ev_ref (EV_P) 3203ev_ref (EV_P) EV_THROW
2528{ 3204{
2529 ++activecnt; 3205 ++activecnt;
2530} 3206}
2531 3207
2532void 3208void
2533ev_unref (EV_P) 3209ev_unref (EV_P) EV_THROW
2534{ 3210{
2535 --activecnt; 3211 --activecnt;
2536} 3212}
2537 3213
2538void 3214void
2539ev_now_update (EV_P) 3215ev_now_update (EV_P) EV_THROW
2540{ 3216{
2541 time_update (EV_A_ 1e100); 3217 time_update (EV_A_ 1e100);
2542} 3218}
2543 3219
2544void 3220void
2545ev_suspend (EV_P) 3221ev_suspend (EV_P) EV_THROW
2546{ 3222{
2547 ev_now_update (EV_A); 3223 ev_now_update (EV_A);
2548} 3224}
2549 3225
2550void 3226void
2551ev_resume (EV_P) 3227ev_resume (EV_P) EV_THROW
2552{ 3228{
2553 ev_tstamp mn_prev = mn_now; 3229 ev_tstamp mn_prev = mn_now;
2554 3230
2555 ev_now_update (EV_A); 3231 ev_now_update (EV_A);
2556 timers_reschedule (EV_A_ mn_now - mn_prev); 3232 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2595 w->pending = 0; 3271 w->pending = 0;
2596 } 3272 }
2597} 3273}
2598 3274
2599int 3275int
2600ev_clear_pending (EV_P_ void *w) 3276ev_clear_pending (EV_P_ void *w) EV_THROW
2601{ 3277{
2602 W w_ = (W)w; 3278 W w_ = (W)w;
2603 int pending = w_->pending; 3279 int pending = w_->pending;
2604 3280
2605 if (expect_true (pending)) 3281 if (expect_true (pending))
… …
2638} 3314}
2639 3315
2640/*****************************************************************************/ 3316/*****************************************************************************/
2641 3317
2642void noinline 3318void noinline
2643ev_io_start (EV_P_ ev_io *w) 3319ev_io_start (EV_P_ ev_io *w) EV_THROW
2644{ 3320{
2645 int fd = w->fd; 3321 int fd = w->fd;
2646 3322
2647 if (expect_false (ev_is_active (w))) 3323 if (expect_false (ev_is_active (w)))
2648 return; 3324 return;
… …
2654 3330
2655 ev_start (EV_A_ (W)w, 1); 3331 ev_start (EV_A_ (W)w, 1);
2656 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3332 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2657 wlist_add (&anfds[fd].head, (WL)w); 3333 wlist_add (&anfds[fd].head, (WL)w);
2658 3334
3335 /* common bug, apparently */
3336 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3337
2659 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3338 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2660 w->events &= ~EV__IOFDSET; 3339 w->events &= ~EV__IOFDSET;
2661 3340
2662 EV_FREQUENT_CHECK; 3341 EV_FREQUENT_CHECK;
2663} 3342}
2664 3343
2665void noinline 3344void noinline
2666ev_io_stop (EV_P_ ev_io *w) 3345ev_io_stop (EV_P_ ev_io *w) EV_THROW
2667{ 3346{
2668 clear_pending (EV_A_ (W)w); 3347 clear_pending (EV_A_ (W)w);
2669 if (expect_false (!ev_is_active (w))) 3348 if (expect_false (!ev_is_active (w)))
2670 return; 3349 return;
2671 3350
… …
2680 3359
2681 EV_FREQUENT_CHECK; 3360 EV_FREQUENT_CHECK;
2682} 3361}
2683 3362
2684void noinline 3363void noinline
2685ev_timer_start (EV_P_ ev_timer *w) 3364ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2686{ 3365{
2687 if (expect_false (ev_is_active (w))) 3366 if (expect_false (ev_is_active (w)))
2688 return; 3367 return;
2689 3368
2690 ev_at (w) += mn_now; 3369 ev_at (w) += mn_now;
… …
2704 3383
2705 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3384 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2706} 3385}
2707 3386
2708void noinline 3387void noinline
2709ev_timer_stop (EV_P_ ev_timer *w) 3388ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2710{ 3389{
2711 clear_pending (EV_A_ (W)w); 3390 clear_pending (EV_A_ (W)w);
2712 if (expect_false (!ev_is_active (w))) 3391 if (expect_false (!ev_is_active (w)))
2713 return; 3392 return;
2714 3393
… …
2734 3413
2735 EV_FREQUENT_CHECK; 3414 EV_FREQUENT_CHECK;
2736} 3415}
2737 3416
2738void noinline 3417void noinline
2739ev_timer_again (EV_P_ ev_timer *w) 3418ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2740{ 3419{
2741 EV_FREQUENT_CHECK; 3420 EV_FREQUENT_CHECK;
3421
3422 clear_pending (EV_A_ (W)w);
2742 3423
2743 if (ev_is_active (w)) 3424 if (ev_is_active (w))
2744 { 3425 {
2745 if (w->repeat) 3426 if (w->repeat)
2746 { 3427 {
… …
2759 3440
2760 EV_FREQUENT_CHECK; 3441 EV_FREQUENT_CHECK;
2761} 3442}
2762 3443
2763ev_tstamp 3444ev_tstamp
2764ev_timer_remaining (EV_P_ ev_timer *w) 3445ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2765{ 3446{
2766 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3447 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2767} 3448}
2768 3449
2769#if EV_PERIODIC_ENABLE 3450#if EV_PERIODIC_ENABLE
2770void noinline 3451void noinline
2771ev_periodic_start (EV_P_ ev_periodic *w) 3452ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2772{ 3453{
2773 if (expect_false (ev_is_active (w))) 3454 if (expect_false (ev_is_active (w)))
2774 return; 3455 return;
2775 3456
2776 if (w->reschedule_cb) 3457 if (w->reschedule_cb)
… …
2796 3477
2797 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3478 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2798} 3479}
2799 3480
2800void noinline 3481void noinline
2801ev_periodic_stop (EV_P_ ev_periodic *w) 3482ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2802{ 3483{
2803 clear_pending (EV_A_ (W)w); 3484 clear_pending (EV_A_ (W)w);
2804 if (expect_false (!ev_is_active (w))) 3485 if (expect_false (!ev_is_active (w)))
2805 return; 3486 return;
2806 3487
… …
2824 3505
2825 EV_FREQUENT_CHECK; 3506 EV_FREQUENT_CHECK;
2826} 3507}
2827 3508
2828void noinline 3509void noinline
2829ev_periodic_again (EV_P_ ev_periodic *w) 3510ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2830{ 3511{
2831 /* TODO: use adjustheap and recalculation */ 3512 /* TODO: use adjustheap and recalculation */
2832 ev_periodic_stop (EV_A_ w); 3513 ev_periodic_stop (EV_A_ w);
2833 ev_periodic_start (EV_A_ w); 3514 ev_periodic_start (EV_A_ w);
2834} 3515}
… …
2839#endif 3520#endif
2840 3521
2841#if EV_SIGNAL_ENABLE 3522#if EV_SIGNAL_ENABLE
2842 3523
2843void noinline 3524void noinline
2844ev_signal_start (EV_P_ ev_signal *w) 3525ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2845{ 3526{
2846 if (expect_false (ev_is_active (w))) 3527 if (expect_false (ev_is_active (w)))
2847 return; 3528 return;
2848 3529
2849 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3530 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2920 3601
2921 EV_FREQUENT_CHECK; 3602 EV_FREQUENT_CHECK;
2922} 3603}
2923 3604
2924void noinline 3605void noinline
2925ev_signal_stop (EV_P_ ev_signal *w) 3606ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2926{ 3607{
2927 clear_pending (EV_A_ (W)w); 3608 clear_pending (EV_A_ (W)w);
2928 if (expect_false (!ev_is_active (w))) 3609 if (expect_false (!ev_is_active (w)))
2929 return; 3610 return;
2930 3611
… …
2961#endif 3642#endif
2962 3643
2963#if EV_CHILD_ENABLE 3644#if EV_CHILD_ENABLE
2964 3645
2965void 3646void
2966ev_child_start (EV_P_ ev_child *w) 3647ev_child_start (EV_P_ ev_child *w) EV_THROW
2967{ 3648{
2968#if EV_MULTIPLICITY 3649#if EV_MULTIPLICITY
2969 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3650 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2970#endif 3651#endif
2971 if (expect_false (ev_is_active (w))) 3652 if (expect_false (ev_is_active (w)))
… …
2978 3659
2979 EV_FREQUENT_CHECK; 3660 EV_FREQUENT_CHECK;
2980} 3661}
2981 3662
2982void 3663void
2983ev_child_stop (EV_P_ ev_child *w) 3664ev_child_stop (EV_P_ ev_child *w) EV_THROW
2984{ 3665{
2985 clear_pending (EV_A_ (W)w); 3666 clear_pending (EV_A_ (W)w);
2986 if (expect_false (!ev_is_active (w))) 3667 if (expect_false (!ev_is_active (w)))
2987 return; 3668 return;
2988 3669
… …
3063 if (!pend || pend == path) 3744 if (!pend || pend == path)
3064 break; 3745 break;
3065 3746
3066 *pend = 0; 3747 *pend = 0;
3067 w->wd = inotify_add_watch (fs_fd, path, mask); 3748 w->wd = inotify_add_watch (fs_fd, path, mask);
3068 } 3749 }
3069 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3750 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
3070 } 3751 }
3071 } 3752 }
3072 3753
3073 if (w->wd >= 0) 3754 if (w->wd >= 0)
… …
3140 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3821 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3141 ofs += sizeof (struct inotify_event) + ev->len; 3822 ofs += sizeof (struct inotify_event) + ev->len;
3142 } 3823 }
3143} 3824}
3144 3825
3145inline_size void 3826inline_size void ecb_cold
3146ev_check_2625 (EV_P) 3827ev_check_2625 (EV_P)
3147{ 3828{
3148 /* kernels < 2.6.25 are borked 3829 /* kernels < 2.6.25 are borked
3149 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3830 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3150 */ 3831 */
… …
3155} 3836}
3156 3837
3157inline_size int 3838inline_size int
3158infy_newfd (void) 3839infy_newfd (void)
3159{ 3840{
3160#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3841#if defined IN_CLOEXEC && defined IN_NONBLOCK
3161 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3842 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3162 if (fd >= 0) 3843 if (fd >= 0)
3163 return fd; 3844 return fd;
3164#endif 3845#endif
3165 return inotify_init (); 3846 return inotify_init ();
… …
3240#else 3921#else
3241# define EV_LSTAT(p,b) lstat (p, b) 3922# define EV_LSTAT(p,b) lstat (p, b)
3242#endif 3923#endif
3243 3924
3244void 3925void
3245ev_stat_stat (EV_P_ ev_stat *w) 3926ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3246{ 3927{
3247 if (lstat (w->path, &w->attr) < 0) 3928 if (lstat (w->path, &w->attr) < 0)
3248 w->attr.st_nlink = 0; 3929 w->attr.st_nlink = 0;
3249 else if (!w->attr.st_nlink) 3930 else if (!w->attr.st_nlink)
3250 w->attr.st_nlink = 1; 3931 w->attr.st_nlink = 1;
… …
3289 ev_feed_event (EV_A_ w, EV_STAT); 3970 ev_feed_event (EV_A_ w, EV_STAT);
3290 } 3971 }
3291} 3972}
3292 3973
3293void 3974void
3294ev_stat_start (EV_P_ ev_stat *w) 3975ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3295{ 3976{
3296 if (expect_false (ev_is_active (w))) 3977 if (expect_false (ev_is_active (w)))
3297 return; 3978 return;
3298 3979
3299 ev_stat_stat (EV_A_ w); 3980 ev_stat_stat (EV_A_ w);
… …
3320 4001
3321 EV_FREQUENT_CHECK; 4002 EV_FREQUENT_CHECK;
3322} 4003}
3323 4004
3324void 4005void
3325ev_stat_stop (EV_P_ ev_stat *w) 4006ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3326{ 4007{
3327 clear_pending (EV_A_ (W)w); 4008 clear_pending (EV_A_ (W)w);
3328 if (expect_false (!ev_is_active (w))) 4009 if (expect_false (!ev_is_active (w)))
3329 return; 4010 return;
3330 4011
… …
3346} 4027}
3347#endif 4028#endif
3348 4029
3349#if EV_IDLE_ENABLE 4030#if EV_IDLE_ENABLE
3350void 4031void
3351ev_idle_start (EV_P_ ev_idle *w) 4032ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3352{ 4033{
3353 if (expect_false (ev_is_active (w))) 4034 if (expect_false (ev_is_active (w)))
3354 return; 4035 return;
3355 4036
3356 pri_adjust (EV_A_ (W)w); 4037 pri_adjust (EV_A_ (W)w);
… …
3369 4050
3370 EV_FREQUENT_CHECK; 4051 EV_FREQUENT_CHECK;
3371} 4052}
3372 4053
3373void 4054void
3374ev_idle_stop (EV_P_ ev_idle *w) 4055ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3375{ 4056{
3376 clear_pending (EV_A_ (W)w); 4057 clear_pending (EV_A_ (W)w);
3377 if (expect_false (!ev_is_active (w))) 4058 if (expect_false (!ev_is_active (w)))
3378 return; 4059 return;
3379 4060
… …
3393} 4074}
3394#endif 4075#endif
3395 4076
3396#if EV_PREPARE_ENABLE 4077#if EV_PREPARE_ENABLE
3397void 4078void
3398ev_prepare_start (EV_P_ ev_prepare *w) 4079ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3399{ 4080{
3400 if (expect_false (ev_is_active (w))) 4081 if (expect_false (ev_is_active (w)))
3401 return; 4082 return;
3402 4083
3403 EV_FREQUENT_CHECK; 4084 EV_FREQUENT_CHECK;
… …
3408 4089
3409 EV_FREQUENT_CHECK; 4090 EV_FREQUENT_CHECK;
3410} 4091}
3411 4092
3412void 4093void
3413ev_prepare_stop (EV_P_ ev_prepare *w) 4094ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3414{ 4095{
3415 clear_pending (EV_A_ (W)w); 4096 clear_pending (EV_A_ (W)w);
3416 if (expect_false (!ev_is_active (w))) 4097 if (expect_false (!ev_is_active (w)))
3417 return; 4098 return;
3418 4099
… …
3431} 4112}
3432#endif 4113#endif
3433 4114
3434#if EV_CHECK_ENABLE 4115#if EV_CHECK_ENABLE
3435void 4116void
3436ev_check_start (EV_P_ ev_check *w) 4117ev_check_start (EV_P_ ev_check *w) EV_THROW
3437{ 4118{
3438 if (expect_false (ev_is_active (w))) 4119 if (expect_false (ev_is_active (w)))
3439 return; 4120 return;
3440 4121
3441 EV_FREQUENT_CHECK; 4122 EV_FREQUENT_CHECK;
… …
3446 4127
3447 EV_FREQUENT_CHECK; 4128 EV_FREQUENT_CHECK;
3448} 4129}
3449 4130
3450void 4131void
3451ev_check_stop (EV_P_ ev_check *w) 4132ev_check_stop (EV_P_ ev_check *w) EV_THROW
3452{ 4133{
3453 clear_pending (EV_A_ (W)w); 4134 clear_pending (EV_A_ (W)w);
3454 if (expect_false (!ev_is_active (w))) 4135 if (expect_false (!ev_is_active (w)))
3455 return; 4136 return;
3456 4137
… …
3469} 4150}
3470#endif 4151#endif
3471 4152
3472#if EV_EMBED_ENABLE 4153#if EV_EMBED_ENABLE
3473void noinline 4154void noinline
3474ev_embed_sweep (EV_P_ ev_embed *w) 4155ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3475{ 4156{
3476 ev_run (w->other, EVRUN_NOWAIT); 4157 ev_run (w->other, EVRUN_NOWAIT);
3477} 4158}
3478 4159
3479static void 4160static void
… …
3527 ev_idle_stop (EV_A_ idle); 4208 ev_idle_stop (EV_A_ idle);
3528} 4209}
3529#endif 4210#endif
3530 4211
3531void 4212void
3532ev_embed_start (EV_P_ ev_embed *w) 4213ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3533{ 4214{
3534 if (expect_false (ev_is_active (w))) 4215 if (expect_false (ev_is_active (w)))
3535 return; 4216 return;
3536 4217
3537 { 4218 {
… …
3558 4239
3559 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
3560} 4241}
3561 4242
3562void 4243void
3563ev_embed_stop (EV_P_ ev_embed *w) 4244ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3564{ 4245{
3565 clear_pending (EV_A_ (W)w); 4246 clear_pending (EV_A_ (W)w);
3566 if (expect_false (!ev_is_active (w))) 4247 if (expect_false (!ev_is_active (w)))
3567 return; 4248 return;
3568 4249
… …
3578} 4259}
3579#endif 4260#endif
3580 4261
3581#if EV_FORK_ENABLE 4262#if EV_FORK_ENABLE
3582void 4263void
3583ev_fork_start (EV_P_ ev_fork *w) 4264ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3584{ 4265{
3585 if (expect_false (ev_is_active (w))) 4266 if (expect_false (ev_is_active (w)))
3586 return; 4267 return;
3587 4268
3588 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
… …
3593 4274
3594 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3595} 4276}
3596 4277
3597void 4278void
3598ev_fork_stop (EV_P_ ev_fork *w) 4279ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3599{ 4280{
3600 clear_pending (EV_A_ (W)w); 4281 clear_pending (EV_A_ (W)w);
3601 if (expect_false (!ev_is_active (w))) 4282 if (expect_false (!ev_is_active (w)))
3602 return; 4283 return;
3603 4284
… …
3616} 4297}
3617#endif 4298#endif
3618 4299
3619#if EV_CLEANUP_ENABLE 4300#if EV_CLEANUP_ENABLE
3620void 4301void
3621ev_cleanup_start (EV_P_ ev_cleanup *w) 4302ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3622{ 4303{
3623 if (expect_false (ev_is_active (w))) 4304 if (expect_false (ev_is_active (w)))
3624 return; 4305 return;
3625 4306
3626 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
… …
3633 ev_unref (EV_A); 4314 ev_unref (EV_A);
3634 EV_FREQUENT_CHECK; 4315 EV_FREQUENT_CHECK;
3635} 4316}
3636 4317
3637void 4318void
3638ev_cleanup_stop (EV_P_ ev_cleanup *w) 4319ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3639{ 4320{
3640 clear_pending (EV_A_ (W)w); 4321 clear_pending (EV_A_ (W)w);
3641 if (expect_false (!ev_is_active (w))) 4322 if (expect_false (!ev_is_active (w)))
3642 return; 4323 return;
3643 4324
… …
3657} 4338}
3658#endif 4339#endif
3659 4340
3660#if EV_ASYNC_ENABLE 4341#if EV_ASYNC_ENABLE
3661void 4342void
3662ev_async_start (EV_P_ ev_async *w) 4343ev_async_start (EV_P_ ev_async *w) EV_THROW
3663{ 4344{
3664 if (expect_false (ev_is_active (w))) 4345 if (expect_false (ev_is_active (w)))
3665 return; 4346 return;
3666 4347
3667 w->sent = 0; 4348 w->sent = 0;
… …
3676 4357
3677 EV_FREQUENT_CHECK; 4358 EV_FREQUENT_CHECK;
3678} 4359}
3679 4360
3680void 4361void
3681ev_async_stop (EV_P_ ev_async *w) 4362ev_async_stop (EV_P_ ev_async *w) EV_THROW
3682{ 4363{
3683 clear_pending (EV_A_ (W)w); 4364 clear_pending (EV_A_ (W)w);
3684 if (expect_false (!ev_is_active (w))) 4365 if (expect_false (!ev_is_active (w)))
3685 return; 4366 return;
3686 4367
… …
3697 4378
3698 EV_FREQUENT_CHECK; 4379 EV_FREQUENT_CHECK;
3699} 4380}
3700 4381
3701void 4382void
3702ev_async_send (EV_P_ ev_async *w) 4383ev_async_send (EV_P_ ev_async *w) EV_THROW
3703{ 4384{
3704 w->sent = 1; 4385 w->sent = 1;
3705 evpipe_write (EV_A_ &async_pending); 4386 evpipe_write (EV_A_ &async_pending);
3706} 4387}
3707#endif 4388#endif
… …
3744 4425
3745 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4426 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3746} 4427}
3747 4428
3748void 4429void
3749ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4430ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3750{ 4431{
3751 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4432 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3752 4433
3753 if (expect_false (!once)) 4434 if (expect_false (!once))
3754 { 4435 {
… …
3775} 4456}
3776 4457
3777/*****************************************************************************/ 4458/*****************************************************************************/
3778 4459
3779#if EV_WALK_ENABLE 4460#if EV_WALK_ENABLE
3780void 4461void ecb_cold
3781ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4462ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3782{ 4463{
3783 int i, j; 4464 int i, j;
3784 ev_watcher_list *wl, *wn; 4465 ev_watcher_list *wl, *wn;
3785 4466
3786 if (types & (EV_IO | EV_EMBED)) 4467 if (types & (EV_IO | EV_EMBED))
… …
3829 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4510 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3830#endif 4511#endif
3831 4512
3832#if EV_IDLE_ENABLE 4513#if EV_IDLE_ENABLE
3833 if (types & EV_IDLE) 4514 if (types & EV_IDLE)
3834 for (j = NUMPRI; i--; ) 4515 for (j = NUMPRI; j--; )
3835 for (i = idlecnt [j]; i--; ) 4516 for (i = idlecnt [j]; i--; )
3836 cb (EV_A_ EV_IDLE, idles [j][i]); 4517 cb (EV_A_ EV_IDLE, idles [j][i]);
3837#endif 4518#endif
3838 4519
3839#if EV_FORK_ENABLE 4520#if EV_FORK_ENABLE
… …
3892 4573
3893#if EV_MULTIPLICITY 4574#if EV_MULTIPLICITY
3894 #include "ev_wrap.h" 4575 #include "ev_wrap.h"
3895#endif 4576#endif
3896 4577
3897EV_CPP(})
3898

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