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Comparing libev/ev.c (file contents):
Revision 1.380 by root, Mon Jun 27 19:20:01 2011 UTC vs.
Revision 1.449 by root, Sun Sep 23 21:21:58 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 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_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
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
237/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
… …
250# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
251# endif 261# endif
252#endif 262#endif
253 263
254#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 267# else
258# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
259# endif 269# endif
260#endif 270#endif
… …
350#endif 360#endif
351 361
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 365# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
360# else 370# else
… …
386# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
387#endif 397#endif
388 398
389#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 401# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 402# include <sys/select.h>
393# endif 403# endif
394#endif 404#endif
395 405
396#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
403# endif 413# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 414#endif
409 415
410#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 418# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 471
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 474
469/* the following are taken from libecb */ 475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ecb.h start */ 476/* ECB.H BEGIN */
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;
519 #if __GNUC__
520 typedef signed long long int64_t;
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;
536#else
537 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU
539 #define ECB_PTRSIZE 8
540 #else
541 #define ECB_PTRSIZE 4
542 #endif
543#endif
471 544
472/* many compilers define _GNUC_ to some versions but then only implement 545/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions, 546 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers. 547 * causing enormous grief in return for some better fake benchmark numbers.
475 * or so. 548 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have 549 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place. 550 * an issue with that they should have done it right in the first place.
478 */ 551 */
479#ifndef ECB_GCC_VERSION 552#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481 #define ECB_GCC_VERSION(major,minor) 0 554 #define ECB_GCC_VERSION(major,minor) 0
482 #else 555 #else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484 #endif 557 #endif
485#endif 558#endif
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/*****************************************************************************/
486 685
487#if __cplusplus 686#if __cplusplus
488 #define ecb_inline static inline 687 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5) 688#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__ 689 #define ecb_inline static __inline__
491#elif ECB_C99 690#elif ECB_C99
492 #define ecb_inline static inline 691 #define ecb_inline static inline
493#else 692#else
494 #define ecb_inline static 693 #define ecb_inline static
495#endif 694#endif
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
496 712
497#if ECB_GCC_VERSION(3,1) 713#if ECB_GCC_VERSION(3,1)
498 #define ecb_attribute(attrlist) __attribute__(attrlist) 714 #define ecb_attribute(attrlist) __attribute__(attrlist)
499 #define ecb_is_constant(expr) __builtin_constant_p (expr) 715 #define ecb_is_constant(expr) __builtin_constant_p (expr)
500 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
… …
504 #define ecb_is_constant(expr) 0 720 #define ecb_is_constant(expr) 0
505 #define ecb_expect(expr,value) (expr) 721 #define ecb_expect(expr,value) (expr)
506 #define ecb_prefetch(addr,rw,locality) 722 #define ecb_prefetch(addr,rw,locality)
507#endif 723#endif
508 724
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
509#define ecb_noinline ecb_attribute ((__noinline__)) 732#define ecb_noinline ecb_attribute ((__noinline__))
510#define ecb_noreturn ecb_attribute ((__noreturn__))
511#define ecb_unused ecb_attribute ((__unused__)) 733#define ecb_unused ecb_attribute ((__unused__))
512#define ecb_const ecb_attribute ((__const__)) 734#define ecb_const ecb_attribute ((__const__))
513#define ecb_pure ecb_attribute ((__pure__)) 735#define ecb_pure ecb_attribute ((__pure__))
736
737#if ECB_C11
738 #define ecb_noreturn _Noreturn
739#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif
514 742
515#if ECB_GCC_VERSION(4,3) 743#if ECB_GCC_VERSION(4,3)
516 #define ecb_artificial ecb_attribute ((__artificial__)) 744 #define ecb_artificial ecb_attribute ((__artificial__))
517 #define ecb_hot ecb_attribute ((__hot__)) 745 #define ecb_hot ecb_attribute ((__hot__))
518 #define ecb_cold ecb_attribute ((__cold__)) 746 #define ecb_cold ecb_attribute ((__cold__))
… …
525/* put around conditional expressions if you are very sure that the */ 753/* put around conditional expressions if you are very sure that the */
526/* expression is mostly true or mostly false. note that these return */ 754/* expression is mostly true or mostly false. note that these return */
527/* booleans, not the expression. */ 755/* booleans, not the expression. */
528#define ecb_expect_false(expr) ecb_expect (!!(expr), 0) 756#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
529#define ecb_expect_true(expr) ecb_expect (!!(expr), 1) 757#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530/* ecb.h end */ 758/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr)
761
762/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4)
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
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
531 1008
532#define expect_false(cond) ecb_expect_false (cond) 1009#define expect_false(cond) ecb_expect_false (cond)
533#define expect_true(cond) ecb_expect_true (cond) 1010#define expect_true(cond) ecb_expect_true (cond)
534#define noinline ecb_noinline 1011#define noinline ecb_noinline
535 1012
… …
681{ 1158{
682 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
683} 1160}
684#endif 1161#endif
685 1162
686static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
687 1164
688void ecb_cold 1165void ecb_cold
689ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
690{ 1167{
691 syserr_cb = cb; 1168 syserr_cb = cb;
692} 1169}
693 1170
694static void noinline ecb_cold 1171static void noinline ecb_cold
… …
712 abort (); 1189 abort ();
713 } 1190 }
714} 1191}
715 1192
716static void * 1193static void *
717ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
718{ 1195{
719#if __GLIBC__
720 return realloc (ptr, size);
721#else
722 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
723 * implement realloc (x, 0) (as required by both ansi c-89 and 1197 * implement realloc (x, 0) (as required by both ansi c-89 and
724 * the single unix specification, so work around them here. 1198 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it,
1200 * despite documenting it otherwise.
725 */ 1201 */
726 1202
727 if (size) 1203 if (size)
728 return realloc (ptr, size); 1204 return realloc (ptr, size);
729 1205
730 free (ptr); 1206 free (ptr);
731 return 0; 1207 return 0;
732#endif
733} 1208}
734 1209
735static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
736 1211
737void ecb_cold 1212void ecb_cold
738ev_set_allocator (void *(*cb)(void *ptr, long size)) 1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
739{ 1214{
740 alloc = cb; 1215 alloc = cb;
741} 1216}
742 1217
743inline_speed void * 1218inline_speed void *
… …
831 #undef VAR 1306 #undef VAR
832 }; 1307 };
833 #include "ev_wrap.h" 1308 #include "ev_wrap.h"
834 1309
835 static struct ev_loop default_loop_struct; 1310 static struct ev_loop default_loop_struct;
836 struct ev_loop *ev_default_loop_ptr; 1311 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
837 1312
838#else 1313#else
839 1314
840 ev_tstamp ev_rt_now; 1315 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
841 #define VAR(name,decl) static decl; 1316 #define VAR(name,decl) static decl;
842 #include "ev_vars.h" 1317 #include "ev_vars.h"
843 #undef VAR 1318 #undef VAR
844 1319
845 static int ev_default_loop_ptr; 1320 static int ev_default_loop_ptr;
… …
860 1335
861/*****************************************************************************/ 1336/*****************************************************************************/
862 1337
863#ifndef EV_HAVE_EV_TIME 1338#ifndef EV_HAVE_EV_TIME
864ev_tstamp 1339ev_tstamp
865ev_time (void) 1340ev_time (void) EV_THROW
866{ 1341{
867#if EV_USE_REALTIME 1342#if EV_USE_REALTIME
868 if (expect_true (have_realtime)) 1343 if (expect_true (have_realtime))
869 { 1344 {
870 struct timespec ts; 1345 struct timespec ts;
… …
894 return ev_time (); 1369 return ev_time ();
895} 1370}
896 1371
897#if EV_MULTIPLICITY 1372#if EV_MULTIPLICITY
898ev_tstamp 1373ev_tstamp
899ev_now (EV_P) 1374ev_now (EV_P) EV_THROW
900{ 1375{
901 return ev_rt_now; 1376 return ev_rt_now;
902} 1377}
903#endif 1378#endif
904 1379
905void 1380void
906ev_sleep (ev_tstamp delay) 1381ev_sleep (ev_tstamp delay) EV_THROW
907{ 1382{
908 if (delay > 0.) 1383 if (delay > 0.)
909 { 1384 {
910#if EV_USE_NANOSLEEP 1385#if EV_USE_NANOSLEEP
911 struct timespec ts; 1386 struct timespec ts;
912 1387
913 EV_TS_SET (ts, delay); 1388 EV_TS_SET (ts, delay);
914 nanosleep (&ts, 0); 1389 nanosleep (&ts, 0);
915#elif defined(_WIN32) 1390#elif defined _WIN32
916 Sleep ((unsigned long)(delay * 1e3)); 1391 Sleep ((unsigned long)(delay * 1e3));
917#else 1392#else
918 struct timeval tv; 1393 struct timeval tv;
919 1394
920 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
939 1414
940 do 1415 do
941 ncur <<= 1; 1416 ncur <<= 1;
942 while (cnt > ncur); 1417 while (cnt > ncur);
943 1418
944 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1419 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
945 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1420 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
946 { 1421 {
947 ncur *= elem; 1422 ncur *= elem;
948 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1423 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
949 ncur = ncur - sizeof (void *) * 4; 1424 ncur = ncur - sizeof (void *) * 4;
… …
964 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1439 memset ((void *)(base), 0, sizeof (*(base)) * (count))
965 1440
966#define array_needsize(type,base,cur,cnt,init) \ 1441#define array_needsize(type,base,cur,cnt,init) \
967 if (expect_false ((cnt) > (cur))) \ 1442 if (expect_false ((cnt) > (cur))) \
968 { \ 1443 { \
969 int ocur_ = (cur); \ 1444 int ecb_unused ocur_ = (cur); \
970 (base) = (type *)array_realloc \ 1445 (base) = (type *)array_realloc \
971 (sizeof (type), (base), &(cur), (cnt)); \ 1446 (sizeof (type), (base), &(cur), (cnt)); \
972 init ((base) + (ocur_), (cur) - ocur_); \ 1447 init ((base) + (ocur_), (cur) - ocur_); \
973 } 1448 }
974 1449
… …
992pendingcb (EV_P_ ev_prepare *w, int revents) 1467pendingcb (EV_P_ ev_prepare *w, int revents)
993{ 1468{
994} 1469}
995 1470
996void noinline 1471void noinline
997ev_feed_event (EV_P_ void *w, int revents) 1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW
998{ 1473{
999 W w_ = (W)w; 1474 W w_ = (W)w;
1000 int pri = ABSPRI (w_); 1475 int pri = ABSPRI (w_);
1001 1476
1002 if (expect_false (w_->pending)) 1477 if (expect_false (w_->pending))
… …
1006 w_->pending = ++pendingcnt [pri]; 1481 w_->pending = ++pendingcnt [pri];
1007 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1008 pendings [pri][w_->pending - 1].w = w_; 1483 pendings [pri][w_->pending - 1].w = w_;
1009 pendings [pri][w_->pending - 1].events = revents; 1484 pendings [pri][w_->pending - 1].events = revents;
1010 } 1485 }
1486
1487 pendingpri = NUMPRI - 1;
1011} 1488}
1012 1489
1013inline_speed void 1490inline_speed void
1014feed_reverse (EV_P_ W w) 1491feed_reverse (EV_P_ W w)
1015{ 1492{
… …
1061 if (expect_true (!anfd->reify)) 1538 if (expect_true (!anfd->reify))
1062 fd_event_nocheck (EV_A_ fd, revents); 1539 fd_event_nocheck (EV_A_ fd, revents);
1063} 1540}
1064 1541
1065void 1542void
1066ev_feed_fd_event (EV_P_ int fd, int revents) 1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1067{ 1544{
1068 if (fd >= 0 && fd < anfdmax) 1545 if (fd >= 0 && fd < anfdmax)
1069 fd_event_nocheck (EV_A_ fd, revents); 1546 fd_event_nocheck (EV_A_ fd, revents);
1070} 1547}
1071 1548
… …
1390static void noinline ecb_cold 1867static void noinline ecb_cold
1391evpipe_init (EV_P) 1868evpipe_init (EV_P)
1392{ 1869{
1393 if (!ev_is_active (&pipe_w)) 1870 if (!ev_is_active (&pipe_w))
1394 { 1871 {
1872 int fds [2];
1873
1395# if EV_USE_EVENTFD 1874# if EV_USE_EVENTFD
1875 fds [0] = -1;
1396 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1876 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1397 if (evfd < 0 && errno == EINVAL) 1877 if (fds [1] < 0 && errno == EINVAL)
1398 evfd = eventfd (0, 0); 1878 fds [1] = eventfd (0, 0);
1399 1879
1400 if (evfd >= 0) 1880 if (fds [1] < 0)
1881# endif
1401 { 1882 {
1883 while (pipe (fds))
1884 ev_syserr ("(libev) error creating signal/async pipe");
1885
1886 fd_intern (fds [0]);
1887 }
1888
1889 fd_intern (fds [1]);
1890
1402 evpipe [0] = -1; 1891 evpipe [0] = fds [0];
1403 fd_intern (evfd); /* doing it twice doesn't hurt */ 1892
1404 ev_io_set (&pipe_w, evfd, EV_READ); 1893 if (evpipe [1] < 0)
1894 evpipe [1] = fds [1]; /* first call, set write fd */
1895 else
1896 {
1897 /* on subsequent calls, do not change evpipe [1] */
1898 /* so that evpipe_write can always rely on its value. */
1899 /* this branch does not do anything sensible on windows, */
1900 /* so must not be executed on windows */
1901
1902 dup2 (fds [1], evpipe [1]);
1903 close (fds [1]);
1904 }
1905
1906 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1907 ev_io_start (EV_A_ &pipe_w);
1908 ev_unref (EV_A); /* watcher should not keep loop alive */
1909 }
1910}
1911
1912inline_speed void
1913evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1914{
1915 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1916
1917 if (expect_true (*flag))
1918 return;
1919
1920 *flag = 1;
1921 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1922
1923 pipe_write_skipped = 1;
1924
1925 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1926
1927 if (pipe_write_wanted)
1928 {
1929 int old_errno;
1930
1931 pipe_write_skipped = 0;
1932 ECB_MEMORY_FENCE_RELEASE;
1933
1934 old_errno = errno; /* save errno because write will clobber it */
1935
1936#if EV_USE_EVENTFD
1937 if (evpipe [0] < 0)
1938 {
1939 uint64_t counter = 1;
1940 write (evpipe [1], &counter, sizeof (uint64_t));
1405 } 1941 }
1406 else 1942 else
1407# endif 1943#endif
1408 { 1944 {
1409 while (pipe (evpipe)) 1945#ifdef _WIN32
1410 ev_syserr ("(libev) error creating signal/async pipe"); 1946 WSABUF buf;
1411 1947 DWORD sent;
1412 fd_intern (evpipe [0]); 1948 buf.buf = &buf;
1413 fd_intern (evpipe [1]); 1949 buf.len = 1;
1414 ev_io_set (&pipe_w, evpipe [0], EV_READ); 1950 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1951#else
1952 write (evpipe [1], &(evpipe [1]), 1);
1953#endif
1415 } 1954 }
1416 1955
1417 ev_io_start (EV_A_ &pipe_w);
1418 ev_unref (EV_A); /* watcher should not keep loop alive */
1419 }
1420}
1421
1422inline_speed void
1423evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1424{
1425 if (!*flag)
1426 {
1427 *flag = 1;
1428
1429 pipe_write_skipped = 1;
1430
1431 if (pipe_write_wanted)
1432 {
1433 int old_errno;
1434
1435 pipe_write_skipped = 0;
1436
1437 old_errno = errno; /* save errno because write will clobber it */
1438
1439#if EV_USE_EVENTFD
1440 if (evfd >= 0)
1441 {
1442 uint64_t counter = 1;
1443 write (evfd, &counter, sizeof (uint64_t));
1444 }
1445 else
1446#endif
1447 {
1448 /* win32 people keep sending patches that change this write() to send() */
1449 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1450 /* so when you think this write should be a send instead, please find out */
1451 /* where your send() is from - it's definitely not the microsoft send, and */
1452 /* tell me. thank you. */
1453 write (evpipe [1], &(evpipe [1]), 1);
1454 }
1455
1456 errno = old_errno; 1956 errno = old_errno;
1457 }
1458 } 1957 }
1459} 1958}
1460 1959
1461/* called whenever the libev signal pipe */ 1960/* called whenever the libev signal pipe */
1462/* got some events (signal, async) */ 1961/* got some events (signal, async) */
… …
1466 int i; 1965 int i;
1467 1966
1468 if (revents & EV_READ) 1967 if (revents & EV_READ)
1469 { 1968 {
1470#if EV_USE_EVENTFD 1969#if EV_USE_EVENTFD
1471 if (evfd >= 0) 1970 if (evpipe [0] < 0)
1472 { 1971 {
1473 uint64_t counter; 1972 uint64_t counter;
1474 read (evfd, &counter, sizeof (uint64_t)); 1973 read (evpipe [1], &counter, sizeof (uint64_t));
1475 } 1974 }
1476 else 1975 else
1477#endif 1976#endif
1478 { 1977 {
1479 char dummy; 1978 char dummy[4];
1480 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1979#ifdef _WIN32
1980 WSABUF buf;
1981 DWORD recvd;
1982 DWORD flags = 0;
1983 buf.buf = dummy;
1984 buf.len = sizeof (dummy);
1985 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1986#else
1481 read (evpipe [0], &dummy, 1); 1987 read (evpipe [0], &dummy, sizeof (dummy));
1988#endif
1482 } 1989 }
1483 } 1990 }
1484 1991
1485 pipe_write_skipped = 0; 1992 pipe_write_skipped = 0;
1993
1994 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1486 1995
1487#if EV_SIGNAL_ENABLE 1996#if EV_SIGNAL_ENABLE
1488 if (sig_pending) 1997 if (sig_pending)
1489 { 1998 {
1490 sig_pending = 0; 1999 sig_pending = 0;
2000
2001 ECB_MEMORY_FENCE;
1491 2002
1492 for (i = EV_NSIG - 1; i--; ) 2003 for (i = EV_NSIG - 1; i--; )
1493 if (expect_false (signals [i].pending)) 2004 if (expect_false (signals [i].pending))
1494 ev_feed_signal_event (EV_A_ i + 1); 2005 ev_feed_signal_event (EV_A_ i + 1);
1495 } 2006 }
… …
1497 2008
1498#if EV_ASYNC_ENABLE 2009#if EV_ASYNC_ENABLE
1499 if (async_pending) 2010 if (async_pending)
1500 { 2011 {
1501 async_pending = 0; 2012 async_pending = 0;
2013
2014 ECB_MEMORY_FENCE;
1502 2015
1503 for (i = asynccnt; i--; ) 2016 for (i = asynccnt; i--; )
1504 if (asyncs [i]->sent) 2017 if (asyncs [i]->sent)
1505 { 2018 {
1506 asyncs [i]->sent = 0; 2019 asyncs [i]->sent = 0;
2020 ECB_MEMORY_FENCE_RELEASE;
1507 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2021 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1508 } 2022 }
1509 } 2023 }
1510#endif 2024#endif
1511} 2025}
1512 2026
1513/*****************************************************************************/ 2027/*****************************************************************************/
1514 2028
1515void 2029void
1516ev_feed_signal (int signum) 2030ev_feed_signal (int signum) EV_THROW
1517{ 2031{
1518#if EV_MULTIPLICITY 2032#if EV_MULTIPLICITY
2033 ECB_MEMORY_FENCE_ACQUIRE;
1519 EV_P = signals [signum - 1].loop; 2034 EV_P = signals [signum - 1].loop;
1520 2035
1521 if (!EV_A) 2036 if (!EV_A)
1522 return; 2037 return;
1523#endif 2038#endif
1524 2039
1525 evpipe_init (EV_A);
1526
1527 signals [signum - 1].pending = 1; 2040 signals [signum - 1].pending = 1;
1528 evpipe_write (EV_A_ &sig_pending); 2041 evpipe_write (EV_A_ &sig_pending);
1529} 2042}
1530 2043
1531static void 2044static void
… …
1537 2050
1538 ev_feed_signal (signum); 2051 ev_feed_signal (signum);
1539} 2052}
1540 2053
1541void noinline 2054void noinline
1542ev_feed_signal_event (EV_P_ int signum) 2055ev_feed_signal_event (EV_P_ int signum) EV_THROW
1543{ 2056{
1544 WL w; 2057 WL w;
1545 2058
1546 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2059 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1547 return; 2060 return;
1548 2061
1549 --signum; 2062 --signum;
1550 2063
1551#if EV_MULTIPLICITY 2064#if EV_MULTIPLICITY
… …
1555 if (expect_false (signals [signum].loop != EV_A)) 2068 if (expect_false (signals [signum].loop != EV_A))
1556 return; 2069 return;
1557#endif 2070#endif
1558 2071
1559 signals [signum].pending = 0; 2072 signals [signum].pending = 0;
2073 ECB_MEMORY_FENCE_RELEASE;
1560 2074
1561 for (w = signals [signum].head; w; w = w->next) 2075 for (w = signals [signum].head; w; w = w->next)
1562 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2076 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1563} 2077}
1564 2078
… …
1663#if EV_USE_SELECT 2177#if EV_USE_SELECT
1664# include "ev_select.c" 2178# include "ev_select.c"
1665#endif 2179#endif
1666 2180
1667int ecb_cold 2181int ecb_cold
1668ev_version_major (void) 2182ev_version_major (void) EV_THROW
1669{ 2183{
1670 return EV_VERSION_MAJOR; 2184 return EV_VERSION_MAJOR;
1671} 2185}
1672 2186
1673int ecb_cold 2187int ecb_cold
1674ev_version_minor (void) 2188ev_version_minor (void) EV_THROW
1675{ 2189{
1676 return EV_VERSION_MINOR; 2190 return EV_VERSION_MINOR;
1677} 2191}
1678 2192
1679/* return true if we are running with elevated privileges and should ignore env variables */ 2193/* return true if we are running with elevated privileges and should ignore env variables */
… …
1687 || getgid () != getegid (); 2201 || getgid () != getegid ();
1688#endif 2202#endif
1689} 2203}
1690 2204
1691unsigned int ecb_cold 2205unsigned int ecb_cold
1692ev_supported_backends (void) 2206ev_supported_backends (void) EV_THROW
1693{ 2207{
1694 unsigned int flags = 0; 2208 unsigned int flags = 0;
1695 2209
1696 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2210 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1697 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2211 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1701 2215
1702 return flags; 2216 return flags;
1703} 2217}
1704 2218
1705unsigned int ecb_cold 2219unsigned int ecb_cold
1706ev_recommended_backends (void) 2220ev_recommended_backends (void) EV_THROW
1707{ 2221{
1708 unsigned int flags = ev_supported_backends (); 2222 unsigned int flags = ev_supported_backends ();
1709 2223
1710#ifndef __NetBSD__ 2224#ifndef __NetBSD__
1711 /* kqueue is borked on everything but netbsd apparently */ 2225 /* kqueue is borked on everything but netbsd apparently */
… …
1723 2237
1724 return flags; 2238 return flags;
1725} 2239}
1726 2240
1727unsigned int ecb_cold 2241unsigned int ecb_cold
1728ev_embeddable_backends (void) 2242ev_embeddable_backends (void) EV_THROW
1729{ 2243{
1730 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2244 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1731 2245
1732 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2246 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1733 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2247 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1735 2249
1736 return flags; 2250 return flags;
1737} 2251}
1738 2252
1739unsigned int 2253unsigned int
1740ev_backend (EV_P) 2254ev_backend (EV_P) EV_THROW
1741{ 2255{
1742 return backend; 2256 return backend;
1743} 2257}
1744 2258
1745#if EV_FEATURE_API 2259#if EV_FEATURE_API
1746unsigned int 2260unsigned int
1747ev_iteration (EV_P) 2261ev_iteration (EV_P) EV_THROW
1748{ 2262{
1749 return loop_count; 2263 return loop_count;
1750} 2264}
1751 2265
1752unsigned int 2266unsigned int
1753ev_depth (EV_P) 2267ev_depth (EV_P) EV_THROW
1754{ 2268{
1755 return loop_depth; 2269 return loop_depth;
1756} 2270}
1757 2271
1758void 2272void
1759ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2273ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1760{ 2274{
1761 io_blocktime = interval; 2275 io_blocktime = interval;
1762} 2276}
1763 2277
1764void 2278void
1765ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2279ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1766{ 2280{
1767 timeout_blocktime = interval; 2281 timeout_blocktime = interval;
1768} 2282}
1769 2283
1770void 2284void
1771ev_set_userdata (EV_P_ void *data) 2285ev_set_userdata (EV_P_ void *data) EV_THROW
1772{ 2286{
1773 userdata = data; 2287 userdata = data;
1774} 2288}
1775 2289
1776void * 2290void *
1777ev_userdata (EV_P) 2291ev_userdata (EV_P) EV_THROW
1778{ 2292{
1779 return userdata; 2293 return userdata;
1780} 2294}
1781 2295
1782void 2296void
1783ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2297ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1784{ 2298{
1785 invoke_cb = invoke_pending_cb; 2299 invoke_cb = invoke_pending_cb;
1786} 2300}
1787 2301
1788void 2302void
1789ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2303ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1790{ 2304{
1791 release_cb = release; 2305 release_cb = release;
1792 acquire_cb = acquire; 2306 acquire_cb = acquire;
1793} 2307}
1794#endif 2308#endif
1795 2309
1796/* initialise a loop structure, must be zero-initialised */ 2310/* initialise a loop structure, must be zero-initialised */
1797static void noinline ecb_cold 2311static void noinline ecb_cold
1798loop_init (EV_P_ unsigned int flags) 2312loop_init (EV_P_ unsigned int flags) EV_THROW
1799{ 2313{
1800 if (!backend) 2314 if (!backend)
1801 { 2315 {
1802 origflags = flags; 2316 origflags = flags;
1803 2317
… …
1848#if EV_ASYNC_ENABLE 2362#if EV_ASYNC_ENABLE
1849 async_pending = 0; 2363 async_pending = 0;
1850#endif 2364#endif
1851 pipe_write_skipped = 0; 2365 pipe_write_skipped = 0;
1852 pipe_write_wanted = 0; 2366 pipe_write_wanted = 0;
2367 evpipe [0] = -1;
2368 evpipe [1] = -1;
1853#if EV_USE_INOTIFY 2369#if EV_USE_INOTIFY
1854 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2370 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1855#endif 2371#endif
1856#if EV_USE_SIGNALFD 2372#if EV_USE_SIGNALFD
1857 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2373 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
1908 EV_INVOKE_PENDING; 2424 EV_INVOKE_PENDING;
1909 } 2425 }
1910#endif 2426#endif
1911 2427
1912#if EV_CHILD_ENABLE 2428#if EV_CHILD_ENABLE
1913 if (ev_is_active (&childev)) 2429 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1914 { 2430 {
1915 ev_ref (EV_A); /* child watcher */ 2431 ev_ref (EV_A); /* child watcher */
1916 ev_signal_stop (EV_A_ &childev); 2432 ev_signal_stop (EV_A_ &childev);
1917 } 2433 }
1918#endif 2434#endif
… …
1920 if (ev_is_active (&pipe_w)) 2436 if (ev_is_active (&pipe_w))
1921 { 2437 {
1922 /*ev_ref (EV_A);*/ 2438 /*ev_ref (EV_A);*/
1923 /*ev_io_stop (EV_A_ &pipe_w);*/ 2439 /*ev_io_stop (EV_A_ &pipe_w);*/
1924 2440
1925#if EV_USE_EVENTFD
1926 if (evfd >= 0)
1927 close (evfd);
1928#endif
1929
1930 if (evpipe [0] >= 0)
1931 {
1932 EV_WIN32_CLOSE_FD (evpipe [0]); 2441 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1933 EV_WIN32_CLOSE_FD (evpipe [1]); 2442 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1934 }
1935 } 2443 }
1936 2444
1937#if EV_USE_SIGNALFD 2445#if EV_USE_SIGNALFD
1938 if (ev_is_active (&sigfd_w)) 2446 if (ev_is_active (&sigfd_w))
1939 close (sigfd); 2447 close (sigfd);
… …
2025#endif 2533#endif
2026#if EV_USE_INOTIFY 2534#if EV_USE_INOTIFY
2027 infy_fork (EV_A); 2535 infy_fork (EV_A);
2028#endif 2536#endif
2029 2537
2538#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2030 if (ev_is_active (&pipe_w)) 2539 if (ev_is_active (&pipe_w))
2031 { 2540 {
2032 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2541 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2033 2542
2034 ev_ref (EV_A); 2543 ev_ref (EV_A);
2035 ev_io_stop (EV_A_ &pipe_w); 2544 ev_io_stop (EV_A_ &pipe_w);
2036 2545
2037#if EV_USE_EVENTFD
2038 if (evfd >= 0)
2039 close (evfd);
2040#endif
2041
2042 if (evpipe [0] >= 0) 2546 if (evpipe [0] >= 0)
2043 {
2044 EV_WIN32_CLOSE_FD (evpipe [0]); 2547 EV_WIN32_CLOSE_FD (evpipe [0]);
2045 EV_WIN32_CLOSE_FD (evpipe [1]);
2046 }
2047 2548
2048#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2049 evpipe_init (EV_A); 2549 evpipe_init (EV_A);
2050 /* now iterate over everything, in case we missed something */ 2550 /* iterate over everything, in case we missed something before */
2051 pipecb (EV_A_ &pipe_w, EV_READ); 2551 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2052#endif
2053 } 2552 }
2553#endif
2054 2554
2055 postfork = 0; 2555 postfork = 0;
2056} 2556}
2057 2557
2058#if EV_MULTIPLICITY 2558#if EV_MULTIPLICITY
2059 2559
2060struct ev_loop * ecb_cold 2560struct ev_loop * ecb_cold
2061ev_loop_new (unsigned int flags) 2561ev_loop_new (unsigned int flags) EV_THROW
2062{ 2562{
2063 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2563 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2064 2564
2065 memset (EV_A, 0, sizeof (struct ev_loop)); 2565 memset (EV_A, 0, sizeof (struct ev_loop));
2066 loop_init (EV_A_ flags); 2566 loop_init (EV_A_ flags);
… …
2110} 2610}
2111#endif 2611#endif
2112 2612
2113#if EV_FEATURE_API 2613#if EV_FEATURE_API
2114void ecb_cold 2614void ecb_cold
2115ev_verify (EV_P) 2615ev_verify (EV_P) EV_THROW
2116{ 2616{
2117#if EV_VERIFY 2617#if EV_VERIFY
2118 int i; 2618 int i;
2119 WL w; 2619 WL w, w2;
2120 2620
2121 assert (activecnt >= -1); 2621 assert (activecnt >= -1);
2122 2622
2123 assert (fdchangemax >= fdchangecnt); 2623 assert (fdchangemax >= fdchangecnt);
2124 for (i = 0; i < fdchangecnt; ++i) 2624 for (i = 0; i < fdchangecnt; ++i)
2125 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2625 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2126 2626
2127 assert (anfdmax >= 0); 2627 assert (anfdmax >= 0);
2128 for (i = 0; i < anfdmax; ++i) 2628 for (i = 0; i < anfdmax; ++i)
2629 {
2630 int j = 0;
2631
2129 for (w = anfds [i].head; w; w = w->next) 2632 for (w = w2 = anfds [i].head; w; w = w->next)
2130 { 2633 {
2131 verify_watcher (EV_A_ (W)w); 2634 verify_watcher (EV_A_ (W)w);
2635
2636 if (j++ & 1)
2637 {
2638 assert (("libev: io watcher list contains a loop", w != w2));
2639 w2 = w2->next;
2640 }
2641
2132 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2642 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2133 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2643 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2134 } 2644 }
2645 }
2135 2646
2136 assert (timermax >= timercnt); 2647 assert (timermax >= timercnt);
2137 verify_heap (EV_A_ timers, timercnt); 2648 verify_heap (EV_A_ timers, timercnt);
2138 2649
2139#if EV_PERIODIC_ENABLE 2650#if EV_PERIODIC_ENABLE
… …
2189#if EV_MULTIPLICITY 2700#if EV_MULTIPLICITY
2190struct ev_loop * ecb_cold 2701struct ev_loop * ecb_cold
2191#else 2702#else
2192int 2703int
2193#endif 2704#endif
2194ev_default_loop (unsigned int flags) 2705ev_default_loop (unsigned int flags) EV_THROW
2195{ 2706{
2196 if (!ev_default_loop_ptr) 2707 if (!ev_default_loop_ptr)
2197 { 2708 {
2198#if EV_MULTIPLICITY 2709#if EV_MULTIPLICITY
2199 EV_P = ev_default_loop_ptr = &default_loop_struct; 2710 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2218 2729
2219 return ev_default_loop_ptr; 2730 return ev_default_loop_ptr;
2220} 2731}
2221 2732
2222void 2733void
2223ev_loop_fork (EV_P) 2734ev_loop_fork (EV_P) EV_THROW
2224{ 2735{
2225 postfork = 1; /* must be in line with ev_default_fork */ 2736 postfork = 1;
2226} 2737}
2227 2738
2228/*****************************************************************************/ 2739/*****************************************************************************/
2229 2740
2230void 2741void
… …
2232{ 2743{
2233 EV_CB_INVOKE ((W)w, revents); 2744 EV_CB_INVOKE ((W)w, revents);
2234} 2745}
2235 2746
2236unsigned int 2747unsigned int
2237ev_pending_count (EV_P) 2748ev_pending_count (EV_P) EV_THROW
2238{ 2749{
2239 int pri; 2750 int pri;
2240 unsigned int count = 0; 2751 unsigned int count = 0;
2241 2752
2242 for (pri = NUMPRI; pri--; ) 2753 for (pri = NUMPRI; pri--; )
… …
2246} 2757}
2247 2758
2248void noinline 2759void noinline
2249ev_invoke_pending (EV_P) 2760ev_invoke_pending (EV_P)
2250{ 2761{
2251 int pri; 2762 pendingpri = NUMPRI;
2252 2763
2253 for (pri = NUMPRI; pri--; ) 2764 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2765 {
2766 --pendingpri;
2767
2254 while (pendingcnt [pri]) 2768 while (pendingcnt [pendingpri])
2255 { 2769 {
2256 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2257 2771
2258 p->w->pending = 0; 2772 p->w->pending = 0;
2259 EV_CB_INVOKE (p->w, p->events); 2773 EV_CB_INVOKE (p->w, p->events);
2260 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2261 } 2775 }
2776 }
2262} 2777}
2263 2778
2264#if EV_IDLE_ENABLE 2779#if EV_IDLE_ENABLE
2265/* make idle watchers pending. this handles the "call-idle */ 2780/* make idle watchers pending. this handles the "call-idle */
2266/* only when higher priorities are idle" logic */ 2781/* only when higher priorities are idle" logic */
… …
2356{ 2871{
2357 EV_FREQUENT_CHECK; 2872 EV_FREQUENT_CHECK;
2358 2873
2359 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2874 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2360 { 2875 {
2361 int feed_count = 0;
2362
2363 do 2876 do
2364 { 2877 {
2365 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2878 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2366 2879
2367 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2880 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2501 3014
2502 mn_now = ev_rt_now; 3015 mn_now = ev_rt_now;
2503 } 3016 }
2504} 3017}
2505 3018
2506void 3019int
2507ev_run (EV_P_ int flags) 3020ev_run (EV_P_ int flags)
2508{ 3021{
2509#if EV_FEATURE_API 3022#if EV_FEATURE_API
2510 ++loop_depth; 3023 ++loop_depth;
2511#endif 3024#endif
… …
2572 time_update (EV_A_ 1e100); 3085 time_update (EV_A_ 1e100);
2573 3086
2574 /* from now on, we want a pipe-wake-up */ 3087 /* from now on, we want a pipe-wake-up */
2575 pipe_write_wanted = 1; 3088 pipe_write_wanted = 1;
2576 3089
3090 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3091
2577 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3092 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2578 { 3093 {
2579 waittime = MAX_BLOCKTIME; 3094 waittime = MAX_BLOCKTIME;
2580 3095
2581 if (timercnt) 3096 if (timercnt)
… …
2622#endif 3137#endif
2623 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3138 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2624 backend_poll (EV_A_ waittime); 3139 backend_poll (EV_A_ waittime);
2625 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3140 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2626 3141
2627 pipe_write_wanted = 0; 3142 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2628 3143
3144 ECB_MEMORY_FENCE_ACQUIRE;
2629 if (pipe_write_skipped) 3145 if (pipe_write_skipped)
2630 { 3146 {
2631 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3147 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2632 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3148 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2633 } 3149 }
… …
2666 loop_done = EVBREAK_CANCEL; 3182 loop_done = EVBREAK_CANCEL;
2667 3183
2668#if EV_FEATURE_API 3184#if EV_FEATURE_API
2669 --loop_depth; 3185 --loop_depth;
2670#endif 3186#endif
3187
3188 return activecnt;
2671} 3189}
2672 3190
2673void 3191void
2674ev_break (EV_P_ int how) 3192ev_break (EV_P_ int how) EV_THROW
2675{ 3193{
2676 loop_done = how; 3194 loop_done = how;
2677} 3195}
2678 3196
2679void 3197void
2680ev_ref (EV_P) 3198ev_ref (EV_P) EV_THROW
2681{ 3199{
2682 ++activecnt; 3200 ++activecnt;
2683} 3201}
2684 3202
2685void 3203void
2686ev_unref (EV_P) 3204ev_unref (EV_P) EV_THROW
2687{ 3205{
2688 --activecnt; 3206 --activecnt;
2689} 3207}
2690 3208
2691void 3209void
2692ev_now_update (EV_P) 3210ev_now_update (EV_P) EV_THROW
2693{ 3211{
2694 time_update (EV_A_ 1e100); 3212 time_update (EV_A_ 1e100);
2695} 3213}
2696 3214
2697void 3215void
2698ev_suspend (EV_P) 3216ev_suspend (EV_P) EV_THROW
2699{ 3217{
2700 ev_now_update (EV_A); 3218 ev_now_update (EV_A);
2701} 3219}
2702 3220
2703void 3221void
2704ev_resume (EV_P) 3222ev_resume (EV_P) EV_THROW
2705{ 3223{
2706 ev_tstamp mn_prev = mn_now; 3224 ev_tstamp mn_prev = mn_now;
2707 3225
2708 ev_now_update (EV_A); 3226 ev_now_update (EV_A);
2709 timers_reschedule (EV_A_ mn_now - mn_prev); 3227 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2748 w->pending = 0; 3266 w->pending = 0;
2749 } 3267 }
2750} 3268}
2751 3269
2752int 3270int
2753ev_clear_pending (EV_P_ void *w) 3271ev_clear_pending (EV_P_ void *w) EV_THROW
2754{ 3272{
2755 W w_ = (W)w; 3273 W w_ = (W)w;
2756 int pending = w_->pending; 3274 int pending = w_->pending;
2757 3275
2758 if (expect_true (pending)) 3276 if (expect_true (pending))
… …
2791} 3309}
2792 3310
2793/*****************************************************************************/ 3311/*****************************************************************************/
2794 3312
2795void noinline 3313void noinline
2796ev_io_start (EV_P_ ev_io *w) 3314ev_io_start (EV_P_ ev_io *w) EV_THROW
2797{ 3315{
2798 int fd = w->fd; 3316 int fd = w->fd;
2799 3317
2800 if (expect_false (ev_is_active (w))) 3318 if (expect_false (ev_is_active (w)))
2801 return; 3319 return;
… …
2807 3325
2808 ev_start (EV_A_ (W)w, 1); 3326 ev_start (EV_A_ (W)w, 1);
2809 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3327 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2810 wlist_add (&anfds[fd].head, (WL)w); 3328 wlist_add (&anfds[fd].head, (WL)w);
2811 3329
3330 /* common bug, apparently */
3331 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3332
2812 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3333 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2813 w->events &= ~EV__IOFDSET; 3334 w->events &= ~EV__IOFDSET;
2814 3335
2815 EV_FREQUENT_CHECK; 3336 EV_FREQUENT_CHECK;
2816} 3337}
2817 3338
2818void noinline 3339void noinline
2819ev_io_stop (EV_P_ ev_io *w) 3340ev_io_stop (EV_P_ ev_io *w) EV_THROW
2820{ 3341{
2821 clear_pending (EV_A_ (W)w); 3342 clear_pending (EV_A_ (W)w);
2822 if (expect_false (!ev_is_active (w))) 3343 if (expect_false (!ev_is_active (w)))
2823 return; 3344 return;
2824 3345
… …
2833 3354
2834 EV_FREQUENT_CHECK; 3355 EV_FREQUENT_CHECK;
2835} 3356}
2836 3357
2837void noinline 3358void noinline
2838ev_timer_start (EV_P_ ev_timer *w) 3359ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2839{ 3360{
2840 if (expect_false (ev_is_active (w))) 3361 if (expect_false (ev_is_active (w)))
2841 return; 3362 return;
2842 3363
2843 ev_at (w) += mn_now; 3364 ev_at (w) += mn_now;
… …
2857 3378
2858 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3379 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2859} 3380}
2860 3381
2861void noinline 3382void noinline
2862ev_timer_stop (EV_P_ ev_timer *w) 3383ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2863{ 3384{
2864 clear_pending (EV_A_ (W)w); 3385 clear_pending (EV_A_ (W)w);
2865 if (expect_false (!ev_is_active (w))) 3386 if (expect_false (!ev_is_active (w)))
2866 return; 3387 return;
2867 3388
… …
2887 3408
2888 EV_FREQUENT_CHECK; 3409 EV_FREQUENT_CHECK;
2889} 3410}
2890 3411
2891void noinline 3412void noinline
2892ev_timer_again (EV_P_ ev_timer *w) 3413ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2893{ 3414{
2894 EV_FREQUENT_CHECK; 3415 EV_FREQUENT_CHECK;
3416
3417 clear_pending (EV_A_ (W)w);
2895 3418
2896 if (ev_is_active (w)) 3419 if (ev_is_active (w))
2897 { 3420 {
2898 if (w->repeat) 3421 if (w->repeat)
2899 { 3422 {
… …
2912 3435
2913 EV_FREQUENT_CHECK; 3436 EV_FREQUENT_CHECK;
2914} 3437}
2915 3438
2916ev_tstamp 3439ev_tstamp
2917ev_timer_remaining (EV_P_ ev_timer *w) 3440ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2918{ 3441{
2919 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3442 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2920} 3443}
2921 3444
2922#if EV_PERIODIC_ENABLE 3445#if EV_PERIODIC_ENABLE
2923void noinline 3446void noinline
2924ev_periodic_start (EV_P_ ev_periodic *w) 3447ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2925{ 3448{
2926 if (expect_false (ev_is_active (w))) 3449 if (expect_false (ev_is_active (w)))
2927 return; 3450 return;
2928 3451
2929 if (w->reschedule_cb) 3452 if (w->reschedule_cb)
… …
2949 3472
2950 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3473 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2951} 3474}
2952 3475
2953void noinline 3476void noinline
2954ev_periodic_stop (EV_P_ ev_periodic *w) 3477ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2955{ 3478{
2956 clear_pending (EV_A_ (W)w); 3479 clear_pending (EV_A_ (W)w);
2957 if (expect_false (!ev_is_active (w))) 3480 if (expect_false (!ev_is_active (w)))
2958 return; 3481 return;
2959 3482
… …
2977 3500
2978 EV_FREQUENT_CHECK; 3501 EV_FREQUENT_CHECK;
2979} 3502}
2980 3503
2981void noinline 3504void noinline
2982ev_periodic_again (EV_P_ ev_periodic *w) 3505ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2983{ 3506{
2984 /* TODO: use adjustheap and recalculation */ 3507 /* TODO: use adjustheap and recalculation */
2985 ev_periodic_stop (EV_A_ w); 3508 ev_periodic_stop (EV_A_ w);
2986 ev_periodic_start (EV_A_ w); 3509 ev_periodic_start (EV_A_ w);
2987} 3510}
… …
2992#endif 3515#endif
2993 3516
2994#if EV_SIGNAL_ENABLE 3517#if EV_SIGNAL_ENABLE
2995 3518
2996void noinline 3519void noinline
2997ev_signal_start (EV_P_ ev_signal *w) 3520ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2998{ 3521{
2999 if (expect_false (ev_is_active (w))) 3522 if (expect_false (ev_is_active (w)))
3000 return; 3523 return;
3001 3524
3002 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3525 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3004#if EV_MULTIPLICITY 3527#if EV_MULTIPLICITY
3005 assert (("libev: a signal must not be attached to two different loops", 3528 assert (("libev: a signal must not be attached to two different loops",
3006 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3529 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3007 3530
3008 signals [w->signum - 1].loop = EV_A; 3531 signals [w->signum - 1].loop = EV_A;
3532 ECB_MEMORY_FENCE_RELEASE;
3009#endif 3533#endif
3010 3534
3011 EV_FREQUENT_CHECK; 3535 EV_FREQUENT_CHECK;
3012 3536
3013#if EV_USE_SIGNALFD 3537#if EV_USE_SIGNALFD
… …
3073 3597
3074 EV_FREQUENT_CHECK; 3598 EV_FREQUENT_CHECK;
3075} 3599}
3076 3600
3077void noinline 3601void noinline
3078ev_signal_stop (EV_P_ ev_signal *w) 3602ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3079{ 3603{
3080 clear_pending (EV_A_ (W)w); 3604 clear_pending (EV_A_ (W)w);
3081 if (expect_false (!ev_is_active (w))) 3605 if (expect_false (!ev_is_active (w)))
3082 return; 3606 return;
3083 3607
… …
3114#endif 3638#endif
3115 3639
3116#if EV_CHILD_ENABLE 3640#if EV_CHILD_ENABLE
3117 3641
3118void 3642void
3119ev_child_start (EV_P_ ev_child *w) 3643ev_child_start (EV_P_ ev_child *w) EV_THROW
3120{ 3644{
3121#if EV_MULTIPLICITY 3645#if EV_MULTIPLICITY
3122 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3646 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3123#endif 3647#endif
3124 if (expect_false (ev_is_active (w))) 3648 if (expect_false (ev_is_active (w)))
… …
3131 3655
3132 EV_FREQUENT_CHECK; 3656 EV_FREQUENT_CHECK;
3133} 3657}
3134 3658
3135void 3659void
3136ev_child_stop (EV_P_ ev_child *w) 3660ev_child_stop (EV_P_ ev_child *w) EV_THROW
3137{ 3661{
3138 clear_pending (EV_A_ (W)w); 3662 clear_pending (EV_A_ (W)w);
3139 if (expect_false (!ev_is_active (w))) 3663 if (expect_false (!ev_is_active (w)))
3140 return; 3664 return;
3141 3665
… …
3308} 3832}
3309 3833
3310inline_size int 3834inline_size int
3311infy_newfd (void) 3835infy_newfd (void)
3312{ 3836{
3313#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3837#if defined IN_CLOEXEC && defined IN_NONBLOCK
3314 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3838 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3315 if (fd >= 0) 3839 if (fd >= 0)
3316 return fd; 3840 return fd;
3317#endif 3841#endif
3318 return inotify_init (); 3842 return inotify_init ();
… …
3393#else 3917#else
3394# define EV_LSTAT(p,b) lstat (p, b) 3918# define EV_LSTAT(p,b) lstat (p, b)
3395#endif 3919#endif
3396 3920
3397void 3921void
3398ev_stat_stat (EV_P_ ev_stat *w) 3922ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3399{ 3923{
3400 if (lstat (w->path, &w->attr) < 0) 3924 if (lstat (w->path, &w->attr) < 0)
3401 w->attr.st_nlink = 0; 3925 w->attr.st_nlink = 0;
3402 else if (!w->attr.st_nlink) 3926 else if (!w->attr.st_nlink)
3403 w->attr.st_nlink = 1; 3927 w->attr.st_nlink = 1;
… …
3442 ev_feed_event (EV_A_ w, EV_STAT); 3966 ev_feed_event (EV_A_ w, EV_STAT);
3443 } 3967 }
3444} 3968}
3445 3969
3446void 3970void
3447ev_stat_start (EV_P_ ev_stat *w) 3971ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3448{ 3972{
3449 if (expect_false (ev_is_active (w))) 3973 if (expect_false (ev_is_active (w)))
3450 return; 3974 return;
3451 3975
3452 ev_stat_stat (EV_A_ w); 3976 ev_stat_stat (EV_A_ w);
… …
3473 3997
3474 EV_FREQUENT_CHECK; 3998 EV_FREQUENT_CHECK;
3475} 3999}
3476 4000
3477void 4001void
3478ev_stat_stop (EV_P_ ev_stat *w) 4002ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3479{ 4003{
3480 clear_pending (EV_A_ (W)w); 4004 clear_pending (EV_A_ (W)w);
3481 if (expect_false (!ev_is_active (w))) 4005 if (expect_false (!ev_is_active (w)))
3482 return; 4006 return;
3483 4007
… …
3499} 4023}
3500#endif 4024#endif
3501 4025
3502#if EV_IDLE_ENABLE 4026#if EV_IDLE_ENABLE
3503void 4027void
3504ev_idle_start (EV_P_ ev_idle *w) 4028ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3505{ 4029{
3506 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
3507 return; 4031 return;
3508 4032
3509 pri_adjust (EV_A_ (W)w); 4033 pri_adjust (EV_A_ (W)w);
… …
3522 4046
3523 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
3524} 4048}
3525 4049
3526void 4050void
3527ev_idle_stop (EV_P_ ev_idle *w) 4051ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3528{ 4052{
3529 clear_pending (EV_A_ (W)w); 4053 clear_pending (EV_A_ (W)w);
3530 if (expect_false (!ev_is_active (w))) 4054 if (expect_false (!ev_is_active (w)))
3531 return; 4055 return;
3532 4056
… …
3546} 4070}
3547#endif 4071#endif
3548 4072
3549#if EV_PREPARE_ENABLE 4073#if EV_PREPARE_ENABLE
3550void 4074void
3551ev_prepare_start (EV_P_ ev_prepare *w) 4075ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3552{ 4076{
3553 if (expect_false (ev_is_active (w))) 4077 if (expect_false (ev_is_active (w)))
3554 return; 4078 return;
3555 4079
3556 EV_FREQUENT_CHECK; 4080 EV_FREQUENT_CHECK;
… …
3561 4085
3562 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3563} 4087}
3564 4088
3565void 4089void
3566ev_prepare_stop (EV_P_ ev_prepare *w) 4090ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3567{ 4091{
3568 clear_pending (EV_A_ (W)w); 4092 clear_pending (EV_A_ (W)w);
3569 if (expect_false (!ev_is_active (w))) 4093 if (expect_false (!ev_is_active (w)))
3570 return; 4094 return;
3571 4095
… …
3584} 4108}
3585#endif 4109#endif
3586 4110
3587#if EV_CHECK_ENABLE 4111#if EV_CHECK_ENABLE
3588void 4112void
3589ev_check_start (EV_P_ ev_check *w) 4113ev_check_start (EV_P_ ev_check *w) EV_THROW
3590{ 4114{
3591 if (expect_false (ev_is_active (w))) 4115 if (expect_false (ev_is_active (w)))
3592 return; 4116 return;
3593 4117
3594 EV_FREQUENT_CHECK; 4118 EV_FREQUENT_CHECK;
… …
3599 4123
3600 EV_FREQUENT_CHECK; 4124 EV_FREQUENT_CHECK;
3601} 4125}
3602 4126
3603void 4127void
3604ev_check_stop (EV_P_ ev_check *w) 4128ev_check_stop (EV_P_ ev_check *w) EV_THROW
3605{ 4129{
3606 clear_pending (EV_A_ (W)w); 4130 clear_pending (EV_A_ (W)w);
3607 if (expect_false (!ev_is_active (w))) 4131 if (expect_false (!ev_is_active (w)))
3608 return; 4132 return;
3609 4133
… …
3622} 4146}
3623#endif 4147#endif
3624 4148
3625#if EV_EMBED_ENABLE 4149#if EV_EMBED_ENABLE
3626void noinline 4150void noinline
3627ev_embed_sweep (EV_P_ ev_embed *w) 4151ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3628{ 4152{
3629 ev_run (w->other, EVRUN_NOWAIT); 4153 ev_run (w->other, EVRUN_NOWAIT);
3630} 4154}
3631 4155
3632static void 4156static void
… …
3680 ev_idle_stop (EV_A_ idle); 4204 ev_idle_stop (EV_A_ idle);
3681} 4205}
3682#endif 4206#endif
3683 4207
3684void 4208void
3685ev_embed_start (EV_P_ ev_embed *w) 4209ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3686{ 4210{
3687 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
3688 return; 4212 return;
3689 4213
3690 { 4214 {
… …
3711 4235
3712 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3713} 4237}
3714 4238
3715void 4239void
3716ev_embed_stop (EV_P_ ev_embed *w) 4240ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3717{ 4241{
3718 clear_pending (EV_A_ (W)w); 4242 clear_pending (EV_A_ (W)w);
3719 if (expect_false (!ev_is_active (w))) 4243 if (expect_false (!ev_is_active (w)))
3720 return; 4244 return;
3721 4245
… …
3731} 4255}
3732#endif 4256#endif
3733 4257
3734#if EV_FORK_ENABLE 4258#if EV_FORK_ENABLE
3735void 4259void
3736ev_fork_start (EV_P_ ev_fork *w) 4260ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3737{ 4261{
3738 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3739 return; 4263 return;
3740 4264
3741 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
… …
3746 4270
3747 EV_FREQUENT_CHECK; 4271 EV_FREQUENT_CHECK;
3748} 4272}
3749 4273
3750void 4274void
3751ev_fork_stop (EV_P_ ev_fork *w) 4275ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3752{ 4276{
3753 clear_pending (EV_A_ (W)w); 4277 clear_pending (EV_A_ (W)w);
3754 if (expect_false (!ev_is_active (w))) 4278 if (expect_false (!ev_is_active (w)))
3755 return; 4279 return;
3756 4280
… …
3769} 4293}
3770#endif 4294#endif
3771 4295
3772#if EV_CLEANUP_ENABLE 4296#if EV_CLEANUP_ENABLE
3773void 4297void
3774ev_cleanup_start (EV_P_ ev_cleanup *w) 4298ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3775{ 4299{
3776 if (expect_false (ev_is_active (w))) 4300 if (expect_false (ev_is_active (w)))
3777 return; 4301 return;
3778 4302
3779 EV_FREQUENT_CHECK; 4303 EV_FREQUENT_CHECK;
… …
3786 ev_unref (EV_A); 4310 ev_unref (EV_A);
3787 EV_FREQUENT_CHECK; 4311 EV_FREQUENT_CHECK;
3788} 4312}
3789 4313
3790void 4314void
3791ev_cleanup_stop (EV_P_ ev_cleanup *w) 4315ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3792{ 4316{
3793 clear_pending (EV_A_ (W)w); 4317 clear_pending (EV_A_ (W)w);
3794 if (expect_false (!ev_is_active (w))) 4318 if (expect_false (!ev_is_active (w)))
3795 return; 4319 return;
3796 4320
… …
3810} 4334}
3811#endif 4335#endif
3812 4336
3813#if EV_ASYNC_ENABLE 4337#if EV_ASYNC_ENABLE
3814void 4338void
3815ev_async_start (EV_P_ ev_async *w) 4339ev_async_start (EV_P_ ev_async *w) EV_THROW
3816{ 4340{
3817 if (expect_false (ev_is_active (w))) 4341 if (expect_false (ev_is_active (w)))
3818 return; 4342 return;
3819 4343
3820 w->sent = 0; 4344 w->sent = 0;
… …
3829 4353
3830 EV_FREQUENT_CHECK; 4354 EV_FREQUENT_CHECK;
3831} 4355}
3832 4356
3833void 4357void
3834ev_async_stop (EV_P_ ev_async *w) 4358ev_async_stop (EV_P_ ev_async *w) EV_THROW
3835{ 4359{
3836 clear_pending (EV_A_ (W)w); 4360 clear_pending (EV_A_ (W)w);
3837 if (expect_false (!ev_is_active (w))) 4361 if (expect_false (!ev_is_active (w)))
3838 return; 4362 return;
3839 4363
… …
3850 4374
3851 EV_FREQUENT_CHECK; 4375 EV_FREQUENT_CHECK;
3852} 4376}
3853 4377
3854void 4378void
3855ev_async_send (EV_P_ ev_async *w) 4379ev_async_send (EV_P_ ev_async *w) EV_THROW
3856{ 4380{
3857 w->sent = 1; 4381 w->sent = 1;
3858 evpipe_write (EV_A_ &async_pending); 4382 evpipe_write (EV_A_ &async_pending);
3859} 4383}
3860#endif 4384#endif
… …
3897 4421
3898 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4422 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3899} 4423}
3900 4424
3901void 4425void
3902ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4426ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3903{ 4427{
3904 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4428 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3905 4429
3906 if (expect_false (!once)) 4430 if (expect_false (!once))
3907 { 4431 {
… …
3929 4453
3930/*****************************************************************************/ 4454/*****************************************************************************/
3931 4455
3932#if EV_WALK_ENABLE 4456#if EV_WALK_ENABLE
3933void ecb_cold 4457void ecb_cold
3934ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4458ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3935{ 4459{
3936 int i, j; 4460 int i, j;
3937 ev_watcher_list *wl, *wn; 4461 ev_watcher_list *wl, *wn;
3938 4462
3939 if (types & (EV_IO | EV_EMBED)) 4463 if (types & (EV_IO | EV_EMBED))
… …
3982 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4506 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3983#endif 4507#endif
3984 4508
3985#if EV_IDLE_ENABLE 4509#if EV_IDLE_ENABLE
3986 if (types & EV_IDLE) 4510 if (types & EV_IDLE)
3987 for (j = NUMPRI; i--; ) 4511 for (j = NUMPRI; j--; )
3988 for (i = idlecnt [j]; i--; ) 4512 for (i = idlecnt [j]; i--; )
3989 cb (EV_A_ EV_IDLE, idles [j][i]); 4513 cb (EV_A_ EV_IDLE, idles [j][i]);
3990#endif 4514#endif
3991 4515
3992#if EV_FORK_ENABLE 4516#if EV_FORK_ENABLE
… …
4045 4569
4046#if EV_MULTIPLICITY 4570#if EV_MULTIPLICITY
4047 #include "ev_wrap.h" 4571 #include "ev_wrap.h"
4048#endif 4572#endif
4049 4573
4050EV_CPP(})
4051

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