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Comparing libev/ev.c (file contents):
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC vs.
Revision 1.447 by root, Tue Jun 19 12:29:43 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
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;
469#if __GNUC__ >= 4 519 #if __GNUC__
470# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
471# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
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;
472#else 536#else
473# define expect(expr,value) (expr) 537 #include <inttypes.h>
474# define noinline 538 #if UINTMAX_MAX > 0xffffffffU
475# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 539 #define ECB_PTRSIZE 8
476# define inline 540 #else
541 #define ECB_PTRSIZE 4
542 #endif
477# 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)))
478#endif 557 #endif
558#endif
479 559
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. */
480#define expect_false(expr) expect ((expr) != 0, 0) 756#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481#define expect_true(expr) expect ((expr) != 0, 1) 757#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
758/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr)
761
762/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4)
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */
771#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
773 ecb_function_ int
774 ecb_ctz32 (uint32_t x)
775 {
776 int r = 0;
777
778 x &= ~x + 1; /* this isolates the lowest bit */
779
780#if ECB_branchless_on_i386
781 r += !!(x & 0xaaaaaaaa) << 0;
782 r += !!(x & 0xcccccccc) << 1;
783 r += !!(x & 0xf0f0f0f0) << 2;
784 r += !!(x & 0xff00ff00) << 3;
785 r += !!(x & 0xffff0000) << 4;
786#else
787 if (x & 0xaaaaaaaa) r += 1;
788 if (x & 0xcccccccc) r += 2;
789 if (x & 0xf0f0f0f0) r += 4;
790 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16;
792#endif
793
794 return r;
795 }
796
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
798 ecb_function_ int
799 ecb_ctz64 (uint64_t x)
800 {
801 int shift = x & 0xffffffffU ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift;
803 }
804
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
806 ecb_function_ int
807 ecb_popcount32 (uint32_t x)
808 {
809 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101;
813
814 return x >> 24;
815 }
816
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
818 ecb_function_ int ecb_ld32 (uint32_t x)
819 {
820 int r = 0;
821
822 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; }
827
828 return r;
829 }
830
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
832 ecb_function_ int ecb_ld64 (uint64_t x)
833 {
834 int r = 0;
835
836 if (x >> 32) { x >>= 32; r += 32; }
837
838 return r + ecb_ld32 (x);
839 }
840#endif
841
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
482#define inline_size static inline 1013#define inline_size ecb_inline
483 1014
484#if EV_FEATURE_CODE 1015#if EV_FEATURE_CODE
485# define inline_speed static inline 1016# define inline_speed ecb_inline
486#else 1017#else
487# define inline_speed static noinline 1018# define inline_speed static noinline
488#endif 1019#endif
489 1020
490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
581 1112
582#ifdef __linux 1113#ifdef __linux
583# include <sys/utsname.h> 1114# include <sys/utsname.h>
584#endif 1115#endif
585 1116
586static unsigned int noinline 1117static unsigned int noinline ecb_cold
587ev_linux_version (void) 1118ev_linux_version (void)
588{ 1119{
589#ifdef __linux 1120#ifdef __linux
590 unsigned int v = 0; 1121 unsigned int v = 0;
591 struct utsname buf; 1122 struct utsname buf;
… …
620} 1151}
621 1152
622/*****************************************************************************/ 1153/*****************************************************************************/
623 1154
624#if EV_AVOID_STDIO 1155#if EV_AVOID_STDIO
625static void noinline 1156static void noinline ecb_cold
626ev_printerr (const char *msg) 1157ev_printerr (const char *msg)
627{ 1158{
628 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
629} 1160}
630#endif 1161#endif
631 1162
632static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
633 1164
634void 1165void ecb_cold
635ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636{ 1167{
637 syserr_cb = cb; 1168 syserr_cb = cb;
638} 1169}
639 1170
640static void noinline 1171static void noinline ecb_cold
641ev_syserr (const char *msg) 1172ev_syserr (const char *msg)
642{ 1173{
643 if (!msg) 1174 if (!msg)
644 msg = "(libev) system error"; 1175 msg = "(libev) system error";
645 1176
… …
658 abort (); 1189 abort ();
659 } 1190 }
660} 1191}
661 1192
662static void * 1193static void *
663ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
664{ 1195{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
668 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
669 * implement realloc (x, 0) (as required by both ansi c-89 and 1197 * implement realloc (x, 0) (as required by both ansi c-89 and
670 * the single unix specification, so work around them here. 1198 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it,
1200 * despite documenting it otherwise.
671 */ 1201 */
672 1202
673 if (size) 1203 if (size)
674 return realloc (ptr, size); 1204 return realloc (ptr, size);
675 1205
676 free (ptr); 1206 free (ptr);
677 return 0; 1207 return 0;
678#endif
679} 1208}
680 1209
681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682 1211
683void 1212void ecb_cold
684ev_set_allocator (void *(*cb)(void *ptr, long size)) 1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685{ 1214{
686 alloc = cb; 1215 alloc = cb;
687} 1216}
688 1217
689inline_speed void * 1218inline_speed void *
… …
777 #undef VAR 1306 #undef VAR
778 }; 1307 };
779 #include "ev_wrap.h" 1308 #include "ev_wrap.h"
780 1309
781 static struct ev_loop default_loop_struct; 1310 static struct ev_loop default_loop_struct;
782 struct ev_loop *ev_default_loop_ptr; 1311 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783 1312
784#else 1313#else
785 1314
786 ev_tstamp ev_rt_now; 1315 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
787 #define VAR(name,decl) static decl; 1316 #define VAR(name,decl) static decl;
788 #include "ev_vars.h" 1317 #include "ev_vars.h"
789 #undef VAR 1318 #undef VAR
790 1319
791 static int ev_default_loop_ptr; 1320 static int ev_default_loop_ptr;
… …
806 1335
807/*****************************************************************************/ 1336/*****************************************************************************/
808 1337
809#ifndef EV_HAVE_EV_TIME 1338#ifndef EV_HAVE_EV_TIME
810ev_tstamp 1339ev_tstamp
811ev_time (void) 1340ev_time (void) EV_THROW
812{ 1341{
813#if EV_USE_REALTIME 1342#if EV_USE_REALTIME
814 if (expect_true (have_realtime)) 1343 if (expect_true (have_realtime))
815 { 1344 {
816 struct timespec ts; 1345 struct timespec ts;
… …
840 return ev_time (); 1369 return ev_time ();
841} 1370}
842 1371
843#if EV_MULTIPLICITY 1372#if EV_MULTIPLICITY
844ev_tstamp 1373ev_tstamp
845ev_now (EV_P) 1374ev_now (EV_P) EV_THROW
846{ 1375{
847 return ev_rt_now; 1376 return ev_rt_now;
848} 1377}
849#endif 1378#endif
850 1379
851void 1380void
852ev_sleep (ev_tstamp delay) 1381ev_sleep (ev_tstamp delay) EV_THROW
853{ 1382{
854 if (delay > 0.) 1383 if (delay > 0.)
855 { 1384 {
856#if EV_USE_NANOSLEEP 1385#if EV_USE_NANOSLEEP
857 struct timespec ts; 1386 struct timespec ts;
858 1387
859 EV_TS_SET (ts, delay); 1388 EV_TS_SET (ts, delay);
860 nanosleep (&ts, 0); 1389 nanosleep (&ts, 0);
861#elif defined(_WIN32) 1390#elif defined _WIN32
862 Sleep ((unsigned long)(delay * 1e3)); 1391 Sleep ((unsigned long)(delay * 1e3));
863#else 1392#else
864 struct timeval tv; 1393 struct timeval tv;
865 1394
866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
885 1414
886 do 1415 do
887 ncur <<= 1; 1416 ncur <<= 1;
888 while (cnt > ncur); 1417 while (cnt > ncur);
889 1418
890 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1419 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1420 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892 { 1421 {
893 ncur *= elem; 1422 ncur *= elem;
894 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1423 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895 ncur = ncur - sizeof (void *) * 4; 1424 ncur = ncur - sizeof (void *) * 4;
… …
897 } 1426 }
898 1427
899 return ncur; 1428 return ncur;
900} 1429}
901 1430
902static noinline void * 1431static void * noinline ecb_cold
903array_realloc (int elem, void *base, int *cur, int cnt) 1432array_realloc (int elem, void *base, int *cur, int cnt)
904{ 1433{
905 *cur = array_nextsize (elem, *cur, cnt); 1434 *cur = array_nextsize (elem, *cur, cnt);
906 return ev_realloc (base, elem * *cur); 1435 return ev_realloc (base, elem * *cur);
907} 1436}
… …
910 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1439 memset ((void *)(base), 0, sizeof (*(base)) * (count))
911 1440
912#define array_needsize(type,base,cur,cnt,init) \ 1441#define array_needsize(type,base,cur,cnt,init) \
913 if (expect_false ((cnt) > (cur))) \ 1442 if (expect_false ((cnt) > (cur))) \
914 { \ 1443 { \
915 int ocur_ = (cur); \ 1444 int ecb_unused ocur_ = (cur); \
916 (base) = (type *)array_realloc \ 1445 (base) = (type *)array_realloc \
917 (sizeof (type), (base), &(cur), (cnt)); \ 1446 (sizeof (type), (base), &(cur), (cnt)); \
918 init ((base) + (ocur_), (cur) - ocur_); \ 1447 init ((base) + (ocur_), (cur) - ocur_); \
919 } 1448 }
920 1449
… …
938pendingcb (EV_P_ ev_prepare *w, int revents) 1467pendingcb (EV_P_ ev_prepare *w, int revents)
939{ 1468{
940} 1469}
941 1470
942void noinline 1471void noinline
943ev_feed_event (EV_P_ void *w, int revents) 1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944{ 1473{
945 W w_ = (W)w; 1474 W w_ = (W)w;
946 int pri = ABSPRI (w_); 1475 int pri = ABSPRI (w_);
947 1476
948 if (expect_false (w_->pending)) 1477 if (expect_false (w_->pending))
… …
952 w_->pending = ++pendingcnt [pri]; 1481 w_->pending = ++pendingcnt [pri];
953 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954 pendings [pri][w_->pending - 1].w = w_; 1483 pendings [pri][w_->pending - 1].w = w_;
955 pendings [pri][w_->pending - 1].events = revents; 1484 pendings [pri][w_->pending - 1].events = revents;
956 } 1485 }
1486
1487 pendingpri = NUMPRI - 1;
957} 1488}
958 1489
959inline_speed void 1490inline_speed void
960feed_reverse (EV_P_ W w) 1491feed_reverse (EV_P_ W w)
961{ 1492{
… …
1007 if (expect_true (!anfd->reify)) 1538 if (expect_true (!anfd->reify))
1008 fd_event_nocheck (EV_A_ fd, revents); 1539 fd_event_nocheck (EV_A_ fd, revents);
1009} 1540}
1010 1541
1011void 1542void
1012ev_feed_fd_event (EV_P_ int fd, int revents) 1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013{ 1544{
1014 if (fd >= 0 && fd < anfdmax) 1545 if (fd >= 0 && fd < anfdmax)
1015 fd_event_nocheck (EV_A_ fd, revents); 1546 fd_event_nocheck (EV_A_ fd, revents);
1016} 1547}
1017 1548
… …
1090 fdchanges [fdchangecnt - 1] = fd; 1621 fdchanges [fdchangecnt - 1] = fd;
1091 } 1622 }
1092} 1623}
1093 1624
1094/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1625/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095inline_speed void 1626inline_speed void ecb_cold
1096fd_kill (EV_P_ int fd) 1627fd_kill (EV_P_ int fd)
1097{ 1628{
1098 ev_io *w; 1629 ev_io *w;
1099 1630
1100 while ((w = (ev_io *)anfds [fd].head)) 1631 while ((w = (ev_io *)anfds [fd].head))
… …
1103 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1634 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104 } 1635 }
1105} 1636}
1106 1637
1107/* check whether the given fd is actually valid, for error recovery */ 1638/* check whether the given fd is actually valid, for error recovery */
1108inline_size int 1639inline_size int ecb_cold
1109fd_valid (int fd) 1640fd_valid (int fd)
1110{ 1641{
1111#ifdef _WIN32 1642#ifdef _WIN32
1112 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1643 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113#else 1644#else
1114 return fcntl (fd, F_GETFD) != -1; 1645 return fcntl (fd, F_GETFD) != -1;
1115#endif 1646#endif
1116} 1647}
1117 1648
1118/* called on EBADF to verify fds */ 1649/* called on EBADF to verify fds */
1119static void noinline 1650static void noinline ecb_cold
1120fd_ebadf (EV_P) 1651fd_ebadf (EV_P)
1121{ 1652{
1122 int fd; 1653 int fd;
1123 1654
1124 for (fd = 0; fd < anfdmax; ++fd) 1655 for (fd = 0; fd < anfdmax; ++fd)
… …
1126 if (!fd_valid (fd) && errno == EBADF) 1657 if (!fd_valid (fd) && errno == EBADF)
1127 fd_kill (EV_A_ fd); 1658 fd_kill (EV_A_ fd);
1128} 1659}
1129 1660
1130/* called on ENOMEM in select/poll to kill some fds and retry */ 1661/* called on ENOMEM in select/poll to kill some fds and retry */
1131static void noinline 1662static void noinline ecb_cold
1132fd_enomem (EV_P) 1663fd_enomem (EV_P)
1133{ 1664{
1134 int fd; 1665 int fd;
1135 1666
1136 for (fd = anfdmax; fd--; ) 1667 for (fd = anfdmax; fd--; )
… …
1331 1862
1332/*****************************************************************************/ 1863/*****************************************************************************/
1333 1864
1334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1865#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335 1866
1336static void noinline 1867static void noinline ecb_cold
1337evpipe_init (EV_P) 1868evpipe_init (EV_P)
1338{ 1869{
1339 if (!ev_is_active (&pipe_w)) 1870 if (!ev_is_active (&pipe_w))
1340 { 1871 {
1341# if EV_USE_EVENTFD 1872# if EV_USE_EVENTFD
… …
1363 ev_io_start (EV_A_ &pipe_w); 1894 ev_io_start (EV_A_ &pipe_w);
1364 ev_unref (EV_A); /* watcher should not keep loop alive */ 1895 ev_unref (EV_A); /* watcher should not keep loop alive */
1365 } 1896 }
1366} 1897}
1367 1898
1368inline_size void 1899inline_speed void
1369evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1900evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370{ 1901{
1371 if (!*flag) 1902 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1372 { 1903
1904 if (expect_true (*flag))
1905 return;
1906
1373 *flag = 1; 1907 *flag = 1;
1908 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1374 1909
1910 pipe_write_skipped = 1;
1911
1912 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1913
1914 if (pipe_write_wanted)
1915 {
1916 int old_errno;
1917
1375 pipe_write_skipped = 1; 1918 pipe_write_skipped = 0;
1919 ECB_MEMORY_FENCE_RELEASE;
1376 1920
1377 if (pipe_write_wanted) 1921 old_errno = errno; /* save errno because write will clobber it */
1922
1923#if EV_USE_EVENTFD
1924 if (evfd >= 0)
1378 { 1925 {
1379 int old_errno = errno; /* save errno because write will clobber it */
1380 char dummy;
1381
1382 pipe_write_skipped = 0;
1383
1384#if EV_USE_EVENTFD
1385 if (evfd >= 0)
1386 {
1387 uint64_t counter = 1; 1926 uint64_t counter = 1;
1388 write (evfd, &counter, sizeof (uint64_t)); 1927 write (evfd, &counter, sizeof (uint64_t));
1389 }
1390 else
1391#endif
1392 {
1393 /* win32 people keep sending patches that change this write() to send() */
1394 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1395 /* so when you think this write should be a send instead, please find out */
1396 /* where your send() is from - it's definitely not the microsoft send, and */
1397 /* tell me. thank you. */
1398 write (evpipe [1], &dummy, 1);
1399 }
1400
1401 errno = old_errno;
1402 } 1928 }
1929 else
1930#endif
1931 {
1932#ifdef _WIN32
1933 WSABUF buf;
1934 DWORD sent;
1935 buf.buf = &buf;
1936 buf.len = 1;
1937 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1938#else
1939 write (evpipe [1], &(evpipe [1]), 1);
1940#endif
1941 }
1942
1943 errno = old_errno;
1403 } 1944 }
1404} 1945}
1405 1946
1406/* called whenever the libev signal pipe */ 1947/* called whenever the libev signal pipe */
1407/* got some events (signal, async) */ 1948/* got some events (signal, async) */
… …
1419 read (evfd, &counter, sizeof (uint64_t)); 1960 read (evfd, &counter, sizeof (uint64_t));
1420 } 1961 }
1421 else 1962 else
1422#endif 1963#endif
1423 { 1964 {
1424 char dummy; 1965 char dummy[4];
1425 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1966#ifdef _WIN32
1967 WSABUF buf;
1968 DWORD recvd;
1969 DWORD flags = 0;
1970 buf.buf = dummy;
1971 buf.len = sizeof (dummy);
1972 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1973#else
1426 read (evpipe [0], &dummy, 1); 1974 read (evpipe [0], &dummy, sizeof (dummy));
1975#endif
1427 } 1976 }
1428 } 1977 }
1429 1978
1430 pipe_write_skipped = 0; 1979 pipe_write_skipped = 0;
1980
1981 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1431 1982
1432#if EV_SIGNAL_ENABLE 1983#if EV_SIGNAL_ENABLE
1433 if (sig_pending) 1984 if (sig_pending)
1434 { 1985 {
1435 sig_pending = 0; 1986 sig_pending = 0;
1987
1988 ECB_MEMORY_FENCE;
1436 1989
1437 for (i = EV_NSIG - 1; i--; ) 1990 for (i = EV_NSIG - 1; i--; )
1438 if (expect_false (signals [i].pending)) 1991 if (expect_false (signals [i].pending))
1439 ev_feed_signal_event (EV_A_ i + 1); 1992 ev_feed_signal_event (EV_A_ i + 1);
1440 } 1993 }
… …
1442 1995
1443#if EV_ASYNC_ENABLE 1996#if EV_ASYNC_ENABLE
1444 if (async_pending) 1997 if (async_pending)
1445 { 1998 {
1446 async_pending = 0; 1999 async_pending = 0;
2000
2001 ECB_MEMORY_FENCE;
1447 2002
1448 for (i = asynccnt; i--; ) 2003 for (i = asynccnt; i--; )
1449 if (asyncs [i]->sent) 2004 if (asyncs [i]->sent)
1450 { 2005 {
1451 asyncs [i]->sent = 0; 2006 asyncs [i]->sent = 0;
2007 ECB_MEMORY_FENCE_RELEASE;
1452 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2008 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1453 } 2009 }
1454 } 2010 }
1455#endif 2011#endif
1456} 2012}
1457 2013
1458/*****************************************************************************/ 2014/*****************************************************************************/
1459 2015
1460void 2016void
1461ev_feed_signal (int signum) 2017ev_feed_signal (int signum) EV_THROW
1462{ 2018{
1463#if EV_MULTIPLICITY 2019#if EV_MULTIPLICITY
1464 EV_P = signals [signum - 1].loop; 2020 EV_P = signals [signum - 1].loop;
1465 2021
1466 if (!EV_A) 2022 if (!EV_A)
1467 return; 2023 return;
1468#endif 2024#endif
1469 2025
1470 evpipe_init (EV_A); 2026 if (!ev_active (&pipe_w))
2027 return;
1471 2028
1472 signals [signum - 1].pending = 1; 2029 signals [signum - 1].pending = 1;
1473 evpipe_write (EV_A_ &sig_pending); 2030 evpipe_write (EV_A_ &sig_pending);
1474} 2031}
1475 2032
… …
1482 2039
1483 ev_feed_signal (signum); 2040 ev_feed_signal (signum);
1484} 2041}
1485 2042
1486void noinline 2043void noinline
1487ev_feed_signal_event (EV_P_ int signum) 2044ev_feed_signal_event (EV_P_ int signum) EV_THROW
1488{ 2045{
1489 WL w; 2046 WL w;
1490 2047
1491 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2048 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1492 return; 2049 return;
1493 2050
1494 --signum; 2051 --signum;
1495 2052
1496#if EV_MULTIPLICITY 2053#if EV_MULTIPLICITY
… …
1500 if (expect_false (signals [signum].loop != EV_A)) 2057 if (expect_false (signals [signum].loop != EV_A))
1501 return; 2058 return;
1502#endif 2059#endif
1503 2060
1504 signals [signum].pending = 0; 2061 signals [signum].pending = 0;
2062 ECB_MEMORY_FENCE_RELEASE;
1505 2063
1506 for (w = signals [signum].head; w; w = w->next) 2064 for (w = signals [signum].head; w; w = w->next)
1507 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2065 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1508} 2066}
1509 2067
… …
1607#endif 2165#endif
1608#if EV_USE_SELECT 2166#if EV_USE_SELECT
1609# include "ev_select.c" 2167# include "ev_select.c"
1610#endif 2168#endif
1611 2169
1612int 2170int ecb_cold
1613ev_version_major (void) 2171ev_version_major (void) EV_THROW
1614{ 2172{
1615 return EV_VERSION_MAJOR; 2173 return EV_VERSION_MAJOR;
1616} 2174}
1617 2175
1618int 2176int ecb_cold
1619ev_version_minor (void) 2177ev_version_minor (void) EV_THROW
1620{ 2178{
1621 return EV_VERSION_MINOR; 2179 return EV_VERSION_MINOR;
1622} 2180}
1623 2181
1624/* return true if we are running with elevated privileges and should ignore env variables */ 2182/* return true if we are running with elevated privileges and should ignore env variables */
1625int inline_size 2183int inline_size ecb_cold
1626enable_secure (void) 2184enable_secure (void)
1627{ 2185{
1628#ifdef _WIN32 2186#ifdef _WIN32
1629 return 0; 2187 return 0;
1630#else 2188#else
1631 return getuid () != geteuid () 2189 return getuid () != geteuid ()
1632 || getgid () != getegid (); 2190 || getgid () != getegid ();
1633#endif 2191#endif
1634} 2192}
1635 2193
1636unsigned int 2194unsigned int ecb_cold
1637ev_supported_backends (void) 2195ev_supported_backends (void) EV_THROW
1638{ 2196{
1639 unsigned int flags = 0; 2197 unsigned int flags = 0;
1640 2198
1641 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2199 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1642 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2200 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1645 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2203 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1646 2204
1647 return flags; 2205 return flags;
1648} 2206}
1649 2207
1650unsigned int 2208unsigned int ecb_cold
1651ev_recommended_backends (void) 2209ev_recommended_backends (void) EV_THROW
1652{ 2210{
1653 unsigned int flags = ev_supported_backends (); 2211 unsigned int flags = ev_supported_backends ();
1654 2212
1655#ifndef __NetBSD__ 2213#ifndef __NetBSD__
1656 /* kqueue is borked on everything but netbsd apparently */ 2214 /* kqueue is borked on everything but netbsd apparently */
… …
1667#endif 2225#endif
1668 2226
1669 return flags; 2227 return flags;
1670} 2228}
1671 2229
1672unsigned int 2230unsigned int ecb_cold
1673ev_embeddable_backends (void) 2231ev_embeddable_backends (void) EV_THROW
1674{ 2232{
1675 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2233 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1676 2234
1677 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2235 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1678 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2236 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1680 2238
1681 return flags; 2239 return flags;
1682} 2240}
1683 2241
1684unsigned int 2242unsigned int
1685ev_backend (EV_P) 2243ev_backend (EV_P) EV_THROW
1686{ 2244{
1687 return backend; 2245 return backend;
1688} 2246}
1689 2247
1690#if EV_FEATURE_API 2248#if EV_FEATURE_API
1691unsigned int 2249unsigned int
1692ev_iteration (EV_P) 2250ev_iteration (EV_P) EV_THROW
1693{ 2251{
1694 return loop_count; 2252 return loop_count;
1695} 2253}
1696 2254
1697unsigned int 2255unsigned int
1698ev_depth (EV_P) 2256ev_depth (EV_P) EV_THROW
1699{ 2257{
1700 return loop_depth; 2258 return loop_depth;
1701} 2259}
1702 2260
1703void 2261void
1704ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2262ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1705{ 2263{
1706 io_blocktime = interval; 2264 io_blocktime = interval;
1707} 2265}
1708 2266
1709void 2267void
1710ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2268ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1711{ 2269{
1712 timeout_blocktime = interval; 2270 timeout_blocktime = interval;
1713} 2271}
1714 2272
1715void 2273void
1716ev_set_userdata (EV_P_ void *data) 2274ev_set_userdata (EV_P_ void *data) EV_THROW
1717{ 2275{
1718 userdata = data; 2276 userdata = data;
1719} 2277}
1720 2278
1721void * 2279void *
1722ev_userdata (EV_P) 2280ev_userdata (EV_P) EV_THROW
1723{ 2281{
1724 return userdata; 2282 return userdata;
1725} 2283}
1726 2284
2285void
1727void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2286ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1728{ 2287{
1729 invoke_cb = invoke_pending_cb; 2288 invoke_cb = invoke_pending_cb;
1730} 2289}
1731 2290
2291void
1732void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2292ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1733{ 2293{
1734 release_cb = release; 2294 release_cb = release;
1735 acquire_cb = acquire; 2295 acquire_cb = acquire;
1736} 2296}
1737#endif 2297#endif
1738 2298
1739/* initialise a loop structure, must be zero-initialised */ 2299/* initialise a loop structure, must be zero-initialised */
1740static void noinline 2300static void noinline ecb_cold
1741loop_init (EV_P_ unsigned int flags) 2301loop_init (EV_P_ unsigned int flags) EV_THROW
1742{ 2302{
1743 if (!backend) 2303 if (!backend)
1744 { 2304 {
1745 origflags = flags; 2305 origflags = flags;
1746 2306
… …
1830#endif 2390#endif
1831 } 2391 }
1832} 2392}
1833 2393
1834/* free up a loop structure */ 2394/* free up a loop structure */
1835void 2395void ecb_cold
1836ev_loop_destroy (EV_P) 2396ev_loop_destroy (EV_P)
1837{ 2397{
1838 int i; 2398 int i;
1839 2399
1840#if EV_MULTIPLICITY 2400#if EV_MULTIPLICITY
… …
1851 EV_INVOKE_PENDING; 2411 EV_INVOKE_PENDING;
1852 } 2412 }
1853#endif 2413#endif
1854 2414
1855#if EV_CHILD_ENABLE 2415#if EV_CHILD_ENABLE
1856 if (ev_is_active (&childev)) 2416 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1857 { 2417 {
1858 ev_ref (EV_A); /* child watcher */ 2418 ev_ref (EV_A); /* child watcher */
1859 ev_signal_stop (EV_A_ &childev); 2419 ev_signal_stop (EV_A_ &childev);
1860 } 2420 }
1861#endif 2421#endif
… …
1988 EV_WIN32_CLOSE_FD (evpipe [1]); 2548 EV_WIN32_CLOSE_FD (evpipe [1]);
1989 } 2549 }
1990 2550
1991#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2551#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1992 evpipe_init (EV_A); 2552 evpipe_init (EV_A);
1993 /* now iterate over everything, in case we missed something */ 2553 /* iterate over everything, in case we missed something before */
1994 pipecb (EV_A_ &pipe_w, EV_READ); 2554 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1995#endif 2555#endif
1996 } 2556 }
1997 2557
1998 postfork = 0; 2558 postfork = 0;
1999} 2559}
2000 2560
2001#if EV_MULTIPLICITY 2561#if EV_MULTIPLICITY
2002 2562
2003struct ev_loop * 2563struct ev_loop * ecb_cold
2004ev_loop_new (unsigned int flags) 2564ev_loop_new (unsigned int flags) EV_THROW
2005{ 2565{
2006 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2566 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2007 2567
2008 memset (EV_A, 0, sizeof (struct ev_loop)); 2568 memset (EV_A, 0, sizeof (struct ev_loop));
2009 loop_init (EV_A_ flags); 2569 loop_init (EV_A_ flags);
… …
2016} 2576}
2017 2577
2018#endif /* multiplicity */ 2578#endif /* multiplicity */
2019 2579
2020#if EV_VERIFY 2580#if EV_VERIFY
2021static void noinline 2581static void noinline ecb_cold
2022verify_watcher (EV_P_ W w) 2582verify_watcher (EV_P_ W w)
2023{ 2583{
2024 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2584 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2025 2585
2026 if (w->pending) 2586 if (w->pending)
2027 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2587 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2028} 2588}
2029 2589
2030static void noinline 2590static void noinline ecb_cold
2031verify_heap (EV_P_ ANHE *heap, int N) 2591verify_heap (EV_P_ ANHE *heap, int N)
2032{ 2592{
2033 int i; 2593 int i;
2034 2594
2035 for (i = HEAP0; i < N + HEAP0; ++i) 2595 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2040 2600
2041 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2601 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2042 } 2602 }
2043} 2603}
2044 2604
2045static void noinline 2605static void noinline ecb_cold
2046array_verify (EV_P_ W *ws, int cnt) 2606array_verify (EV_P_ W *ws, int cnt)
2047{ 2607{
2048 while (cnt--) 2608 while (cnt--)
2049 { 2609 {
2050 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2610 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2052 } 2612 }
2053} 2613}
2054#endif 2614#endif
2055 2615
2056#if EV_FEATURE_API 2616#if EV_FEATURE_API
2057void 2617void ecb_cold
2058ev_verify (EV_P) 2618ev_verify (EV_P) EV_THROW
2059{ 2619{
2060#if EV_VERIFY 2620#if EV_VERIFY
2061 int i; 2621 int i;
2062 WL w; 2622 WL w, w2;
2063 2623
2064 assert (activecnt >= -1); 2624 assert (activecnt >= -1);
2065 2625
2066 assert (fdchangemax >= fdchangecnt); 2626 assert (fdchangemax >= fdchangecnt);
2067 for (i = 0; i < fdchangecnt; ++i) 2627 for (i = 0; i < fdchangecnt; ++i)
2068 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2628 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2069 2629
2070 assert (anfdmax >= 0); 2630 assert (anfdmax >= 0);
2071 for (i = 0; i < anfdmax; ++i) 2631 for (i = 0; i < anfdmax; ++i)
2632 {
2633 int j = 0;
2634
2072 for (w = anfds [i].head; w; w = w->next) 2635 for (w = w2 = anfds [i].head; w; w = w->next)
2073 { 2636 {
2074 verify_watcher (EV_A_ (W)w); 2637 verify_watcher (EV_A_ (W)w);
2638
2639 if (j++ & 1)
2640 {
2641 assert (("libev: io watcher list contains a loop", w != w2));
2642 w2 = w2->next;
2643 }
2644
2075 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2645 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2076 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2646 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2077 } 2647 }
2648 }
2078 2649
2079 assert (timermax >= timercnt); 2650 assert (timermax >= timercnt);
2080 verify_heap (EV_A_ timers, timercnt); 2651 verify_heap (EV_A_ timers, timercnt);
2081 2652
2082#if EV_PERIODIC_ENABLE 2653#if EV_PERIODIC_ENABLE
… …
2128#endif 2699#endif
2129} 2700}
2130#endif 2701#endif
2131 2702
2132#if EV_MULTIPLICITY 2703#if EV_MULTIPLICITY
2133struct ev_loop * 2704struct ev_loop * ecb_cold
2134#else 2705#else
2135int 2706int
2136#endif 2707#endif
2137ev_default_loop (unsigned int flags) 2708ev_default_loop (unsigned int flags) EV_THROW
2138{ 2709{
2139 if (!ev_default_loop_ptr) 2710 if (!ev_default_loop_ptr)
2140 { 2711 {
2141#if EV_MULTIPLICITY 2712#if EV_MULTIPLICITY
2142 EV_P = ev_default_loop_ptr = &default_loop_struct; 2713 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2161 2732
2162 return ev_default_loop_ptr; 2733 return ev_default_loop_ptr;
2163} 2734}
2164 2735
2165void 2736void
2166ev_loop_fork (EV_P) 2737ev_loop_fork (EV_P) EV_THROW
2167{ 2738{
2168 postfork = 1; /* must be in line with ev_default_fork */ 2739 postfork = 1;
2169} 2740}
2170 2741
2171/*****************************************************************************/ 2742/*****************************************************************************/
2172 2743
2173void 2744void
… …
2175{ 2746{
2176 EV_CB_INVOKE ((W)w, revents); 2747 EV_CB_INVOKE ((W)w, revents);
2177} 2748}
2178 2749
2179unsigned int 2750unsigned int
2180ev_pending_count (EV_P) 2751ev_pending_count (EV_P) EV_THROW
2181{ 2752{
2182 int pri; 2753 int pri;
2183 unsigned int count = 0; 2754 unsigned int count = 0;
2184 2755
2185 for (pri = NUMPRI; pri--; ) 2756 for (pri = NUMPRI; pri--; )
… …
2189} 2760}
2190 2761
2191void noinline 2762void noinline
2192ev_invoke_pending (EV_P) 2763ev_invoke_pending (EV_P)
2193{ 2764{
2194 int pri; 2765 pendingpri = NUMPRI;
2195 2766
2196 for (pri = NUMPRI; pri--; ) 2767 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2768 {
2769 --pendingpri;
2770
2197 while (pendingcnt [pri]) 2771 while (pendingcnt [pendingpri])
2198 { 2772 {
2199 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2773 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2200 2774
2201 p->w->pending = 0; 2775 p->w->pending = 0;
2202 EV_CB_INVOKE (p->w, p->events); 2776 EV_CB_INVOKE (p->w, p->events);
2203 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2204 } 2778 }
2779 }
2205} 2780}
2206 2781
2207#if EV_IDLE_ENABLE 2782#if EV_IDLE_ENABLE
2208/* make idle watchers pending. this handles the "call-idle */ 2783/* make idle watchers pending. this handles the "call-idle */
2209/* only when higher priorities are idle" logic */ 2784/* only when higher priorities are idle" logic */
… …
2299{ 2874{
2300 EV_FREQUENT_CHECK; 2875 EV_FREQUENT_CHECK;
2301 2876
2302 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2877 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2303 { 2878 {
2304 int feed_count = 0;
2305
2306 do 2879 do
2307 { 2880 {
2308 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2881 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2309 2882
2310 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2883 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2337 } 2910 }
2338} 2911}
2339 2912
2340/* simply recalculate all periodics */ 2913/* simply recalculate all periodics */
2341/* TODO: maybe ensure that at least one event happens when jumping forward? */ 2914/* TODO: maybe ensure that at least one event happens when jumping forward? */
2342static void noinline 2915static void noinline ecb_cold
2343periodics_reschedule (EV_P) 2916periodics_reschedule (EV_P)
2344{ 2917{
2345 int i; 2918 int i;
2346 2919
2347 /* adjust periodics after time jump */ 2920 /* adjust periodics after time jump */
… …
2360 reheap (periodics, periodiccnt); 2933 reheap (periodics, periodiccnt);
2361} 2934}
2362#endif 2935#endif
2363 2936
2364/* adjust all timers by a given offset */ 2937/* adjust all timers by a given offset */
2365static void noinline 2938static void noinline ecb_cold
2366timers_reschedule (EV_P_ ev_tstamp adjust) 2939timers_reschedule (EV_P_ ev_tstamp adjust)
2367{ 2940{
2368 int i; 2941 int i;
2369 2942
2370 for (i = 0; i < timercnt; ++i) 2943 for (i = 0; i < timercnt; ++i)
… …
2444 3017
2445 mn_now = ev_rt_now; 3018 mn_now = ev_rt_now;
2446 } 3019 }
2447} 3020}
2448 3021
2449void 3022int
2450ev_run (EV_P_ int flags) 3023ev_run (EV_P_ int flags)
2451{ 3024{
2452#if EV_FEATURE_API 3025#if EV_FEATURE_API
2453 ++loop_depth; 3026 ++loop_depth;
2454#endif 3027#endif
… …
2515 time_update (EV_A_ 1e100); 3088 time_update (EV_A_ 1e100);
2516 3089
2517 /* from now on, we want a pipe-wake-up */ 3090 /* from now on, we want a pipe-wake-up */
2518 pipe_write_wanted = 1; 3091 pipe_write_wanted = 1;
2519 3092
3093 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3094
2520 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3095 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2521 { 3096 {
2522 waittime = MAX_BLOCKTIME; 3097 waittime = MAX_BLOCKTIME;
2523 3098
2524 if (timercnt) 3099 if (timercnt)
… …
2565#endif 3140#endif
2566 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3141 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2567 backend_poll (EV_A_ waittime); 3142 backend_poll (EV_A_ waittime);
2568 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3143 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2569 3144
2570 pipe_write_wanted = 0; 3145 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2571 3146
3147 ECB_MEMORY_FENCE_ACQUIRE;
2572 if (pipe_write_skipped) 3148 if (pipe_write_skipped)
2573 { 3149 {
2574 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3150 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2575 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3151 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2576 } 3152 }
… …
2609 loop_done = EVBREAK_CANCEL; 3185 loop_done = EVBREAK_CANCEL;
2610 3186
2611#if EV_FEATURE_API 3187#if EV_FEATURE_API
2612 --loop_depth; 3188 --loop_depth;
2613#endif 3189#endif
3190
3191 return activecnt;
2614} 3192}
2615 3193
2616void 3194void
2617ev_break (EV_P_ int how) 3195ev_break (EV_P_ int how) EV_THROW
2618{ 3196{
2619 loop_done = how; 3197 loop_done = how;
2620} 3198}
2621 3199
2622void 3200void
2623ev_ref (EV_P) 3201ev_ref (EV_P) EV_THROW
2624{ 3202{
2625 ++activecnt; 3203 ++activecnt;
2626} 3204}
2627 3205
2628void 3206void
2629ev_unref (EV_P) 3207ev_unref (EV_P) EV_THROW
2630{ 3208{
2631 --activecnt; 3209 --activecnt;
2632} 3210}
2633 3211
2634void 3212void
2635ev_now_update (EV_P) 3213ev_now_update (EV_P) EV_THROW
2636{ 3214{
2637 time_update (EV_A_ 1e100); 3215 time_update (EV_A_ 1e100);
2638} 3216}
2639 3217
2640void 3218void
2641ev_suspend (EV_P) 3219ev_suspend (EV_P) EV_THROW
2642{ 3220{
2643 ev_now_update (EV_A); 3221 ev_now_update (EV_A);
2644} 3222}
2645 3223
2646void 3224void
2647ev_resume (EV_P) 3225ev_resume (EV_P) EV_THROW
2648{ 3226{
2649 ev_tstamp mn_prev = mn_now; 3227 ev_tstamp mn_prev = mn_now;
2650 3228
2651 ev_now_update (EV_A); 3229 ev_now_update (EV_A);
2652 timers_reschedule (EV_A_ mn_now - mn_prev); 3230 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2691 w->pending = 0; 3269 w->pending = 0;
2692 } 3270 }
2693} 3271}
2694 3272
2695int 3273int
2696ev_clear_pending (EV_P_ void *w) 3274ev_clear_pending (EV_P_ void *w) EV_THROW
2697{ 3275{
2698 W w_ = (W)w; 3276 W w_ = (W)w;
2699 int pending = w_->pending; 3277 int pending = w_->pending;
2700 3278
2701 if (expect_true (pending)) 3279 if (expect_true (pending))
… …
2734} 3312}
2735 3313
2736/*****************************************************************************/ 3314/*****************************************************************************/
2737 3315
2738void noinline 3316void noinline
2739ev_io_start (EV_P_ ev_io *w) 3317ev_io_start (EV_P_ ev_io *w) EV_THROW
2740{ 3318{
2741 int fd = w->fd; 3319 int fd = w->fd;
2742 3320
2743 if (expect_false (ev_is_active (w))) 3321 if (expect_false (ev_is_active (w)))
2744 return; 3322 return;
… …
2750 3328
2751 ev_start (EV_A_ (W)w, 1); 3329 ev_start (EV_A_ (W)w, 1);
2752 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3330 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2753 wlist_add (&anfds[fd].head, (WL)w); 3331 wlist_add (&anfds[fd].head, (WL)w);
2754 3332
3333 /* common bug, apparently */
3334 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3335
2755 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3336 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2756 w->events &= ~EV__IOFDSET; 3337 w->events &= ~EV__IOFDSET;
2757 3338
2758 EV_FREQUENT_CHECK; 3339 EV_FREQUENT_CHECK;
2759} 3340}
2760 3341
2761void noinline 3342void noinline
2762ev_io_stop (EV_P_ ev_io *w) 3343ev_io_stop (EV_P_ ev_io *w) EV_THROW
2763{ 3344{
2764 clear_pending (EV_A_ (W)w); 3345 clear_pending (EV_A_ (W)w);
2765 if (expect_false (!ev_is_active (w))) 3346 if (expect_false (!ev_is_active (w)))
2766 return; 3347 return;
2767 3348
… …
2776 3357
2777 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
2778} 3359}
2779 3360
2780void noinline 3361void noinline
2781ev_timer_start (EV_P_ ev_timer *w) 3362ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2782{ 3363{
2783 if (expect_false (ev_is_active (w))) 3364 if (expect_false (ev_is_active (w)))
2784 return; 3365 return;
2785 3366
2786 ev_at (w) += mn_now; 3367 ev_at (w) += mn_now;
… …
2800 3381
2801 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3382 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2802} 3383}
2803 3384
2804void noinline 3385void noinline
2805ev_timer_stop (EV_P_ ev_timer *w) 3386ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2806{ 3387{
2807 clear_pending (EV_A_ (W)w); 3388 clear_pending (EV_A_ (W)w);
2808 if (expect_false (!ev_is_active (w))) 3389 if (expect_false (!ev_is_active (w)))
2809 return; 3390 return;
2810 3391
… …
2830 3411
2831 EV_FREQUENT_CHECK; 3412 EV_FREQUENT_CHECK;
2832} 3413}
2833 3414
2834void noinline 3415void noinline
2835ev_timer_again (EV_P_ ev_timer *w) 3416ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2836{ 3417{
2837 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
3419
3420 clear_pending (EV_A_ (W)w);
2838 3421
2839 if (ev_is_active (w)) 3422 if (ev_is_active (w))
2840 { 3423 {
2841 if (w->repeat) 3424 if (w->repeat)
2842 { 3425 {
… …
2855 3438
2856 EV_FREQUENT_CHECK; 3439 EV_FREQUENT_CHECK;
2857} 3440}
2858 3441
2859ev_tstamp 3442ev_tstamp
2860ev_timer_remaining (EV_P_ ev_timer *w) 3443ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2861{ 3444{
2862 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3445 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2863} 3446}
2864 3447
2865#if EV_PERIODIC_ENABLE 3448#if EV_PERIODIC_ENABLE
2866void noinline 3449void noinline
2867ev_periodic_start (EV_P_ ev_periodic *w) 3450ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2868{ 3451{
2869 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
2870 return; 3453 return;
2871 3454
2872 if (w->reschedule_cb) 3455 if (w->reschedule_cb)
… …
2892 3475
2893 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3476 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2894} 3477}
2895 3478
2896void noinline 3479void noinline
2897ev_periodic_stop (EV_P_ ev_periodic *w) 3480ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2898{ 3481{
2899 clear_pending (EV_A_ (W)w); 3482 clear_pending (EV_A_ (W)w);
2900 if (expect_false (!ev_is_active (w))) 3483 if (expect_false (!ev_is_active (w)))
2901 return; 3484 return;
2902 3485
… …
2920 3503
2921 EV_FREQUENT_CHECK; 3504 EV_FREQUENT_CHECK;
2922} 3505}
2923 3506
2924void noinline 3507void noinline
2925ev_periodic_again (EV_P_ ev_periodic *w) 3508ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2926{ 3509{
2927 /* TODO: use adjustheap and recalculation */ 3510 /* TODO: use adjustheap and recalculation */
2928 ev_periodic_stop (EV_A_ w); 3511 ev_periodic_stop (EV_A_ w);
2929 ev_periodic_start (EV_A_ w); 3512 ev_periodic_start (EV_A_ w);
2930} 3513}
… …
2935#endif 3518#endif
2936 3519
2937#if EV_SIGNAL_ENABLE 3520#if EV_SIGNAL_ENABLE
2938 3521
2939void noinline 3522void noinline
2940ev_signal_start (EV_P_ ev_signal *w) 3523ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2941{ 3524{
2942 if (expect_false (ev_is_active (w))) 3525 if (expect_false (ev_is_active (w)))
2943 return; 3526 return;
2944 3527
2945 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3528 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3016 3599
3017 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
3018} 3601}
3019 3602
3020void noinline 3603void noinline
3021ev_signal_stop (EV_P_ ev_signal *w) 3604ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3022{ 3605{
3023 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
3024 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
3025 return; 3608 return;
3026 3609
… …
3057#endif 3640#endif
3058 3641
3059#if EV_CHILD_ENABLE 3642#if EV_CHILD_ENABLE
3060 3643
3061void 3644void
3062ev_child_start (EV_P_ ev_child *w) 3645ev_child_start (EV_P_ ev_child *w) EV_THROW
3063{ 3646{
3064#if EV_MULTIPLICITY 3647#if EV_MULTIPLICITY
3065 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3648 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3066#endif 3649#endif
3067 if (expect_false (ev_is_active (w))) 3650 if (expect_false (ev_is_active (w)))
… …
3074 3657
3075 EV_FREQUENT_CHECK; 3658 EV_FREQUENT_CHECK;
3076} 3659}
3077 3660
3078void 3661void
3079ev_child_stop (EV_P_ ev_child *w) 3662ev_child_stop (EV_P_ ev_child *w) EV_THROW
3080{ 3663{
3081 clear_pending (EV_A_ (W)w); 3664 clear_pending (EV_A_ (W)w);
3082 if (expect_false (!ev_is_active (w))) 3665 if (expect_false (!ev_is_active (w)))
3083 return; 3666 return;
3084 3667
… …
3236 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3819 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3237 ofs += sizeof (struct inotify_event) + ev->len; 3820 ofs += sizeof (struct inotify_event) + ev->len;
3238 } 3821 }
3239} 3822}
3240 3823
3241inline_size void 3824inline_size void ecb_cold
3242ev_check_2625 (EV_P) 3825ev_check_2625 (EV_P)
3243{ 3826{
3244 /* kernels < 2.6.25 are borked 3827 /* kernels < 2.6.25 are borked
3245 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3828 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3246 */ 3829 */
… …
3251} 3834}
3252 3835
3253inline_size int 3836inline_size int
3254infy_newfd (void) 3837infy_newfd (void)
3255{ 3838{
3256#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3839#if defined IN_CLOEXEC && defined IN_NONBLOCK
3257 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3840 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3258 if (fd >= 0) 3841 if (fd >= 0)
3259 return fd; 3842 return fd;
3260#endif 3843#endif
3261 return inotify_init (); 3844 return inotify_init ();
… …
3336#else 3919#else
3337# define EV_LSTAT(p,b) lstat (p, b) 3920# define EV_LSTAT(p,b) lstat (p, b)
3338#endif 3921#endif
3339 3922
3340void 3923void
3341ev_stat_stat (EV_P_ ev_stat *w) 3924ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3342{ 3925{
3343 if (lstat (w->path, &w->attr) < 0) 3926 if (lstat (w->path, &w->attr) < 0)
3344 w->attr.st_nlink = 0; 3927 w->attr.st_nlink = 0;
3345 else if (!w->attr.st_nlink) 3928 else if (!w->attr.st_nlink)
3346 w->attr.st_nlink = 1; 3929 w->attr.st_nlink = 1;
… …
3385 ev_feed_event (EV_A_ w, EV_STAT); 3968 ev_feed_event (EV_A_ w, EV_STAT);
3386 } 3969 }
3387} 3970}
3388 3971
3389void 3972void
3390ev_stat_start (EV_P_ ev_stat *w) 3973ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3391{ 3974{
3392 if (expect_false (ev_is_active (w))) 3975 if (expect_false (ev_is_active (w)))
3393 return; 3976 return;
3394 3977
3395 ev_stat_stat (EV_A_ w); 3978 ev_stat_stat (EV_A_ w);
… …
3416 3999
3417 EV_FREQUENT_CHECK; 4000 EV_FREQUENT_CHECK;
3418} 4001}
3419 4002
3420void 4003void
3421ev_stat_stop (EV_P_ ev_stat *w) 4004ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3422{ 4005{
3423 clear_pending (EV_A_ (W)w); 4006 clear_pending (EV_A_ (W)w);
3424 if (expect_false (!ev_is_active (w))) 4007 if (expect_false (!ev_is_active (w)))
3425 return; 4008 return;
3426 4009
… …
3442} 4025}
3443#endif 4026#endif
3444 4027
3445#if EV_IDLE_ENABLE 4028#if EV_IDLE_ENABLE
3446void 4029void
3447ev_idle_start (EV_P_ ev_idle *w) 4030ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3448{ 4031{
3449 if (expect_false (ev_is_active (w))) 4032 if (expect_false (ev_is_active (w)))
3450 return; 4033 return;
3451 4034
3452 pri_adjust (EV_A_ (W)w); 4035 pri_adjust (EV_A_ (W)w);
… …
3465 4048
3466 EV_FREQUENT_CHECK; 4049 EV_FREQUENT_CHECK;
3467} 4050}
3468 4051
3469void 4052void
3470ev_idle_stop (EV_P_ ev_idle *w) 4053ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3471{ 4054{
3472 clear_pending (EV_A_ (W)w); 4055 clear_pending (EV_A_ (W)w);
3473 if (expect_false (!ev_is_active (w))) 4056 if (expect_false (!ev_is_active (w)))
3474 return; 4057 return;
3475 4058
… …
3489} 4072}
3490#endif 4073#endif
3491 4074
3492#if EV_PREPARE_ENABLE 4075#if EV_PREPARE_ENABLE
3493void 4076void
3494ev_prepare_start (EV_P_ ev_prepare *w) 4077ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3495{ 4078{
3496 if (expect_false (ev_is_active (w))) 4079 if (expect_false (ev_is_active (w)))
3497 return; 4080 return;
3498 4081
3499 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
… …
3504 4087
3505 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3506} 4089}
3507 4090
3508void 4091void
3509ev_prepare_stop (EV_P_ ev_prepare *w) 4092ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3510{ 4093{
3511 clear_pending (EV_A_ (W)w); 4094 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 4095 if (expect_false (!ev_is_active (w)))
3513 return; 4096 return;
3514 4097
… …
3527} 4110}
3528#endif 4111#endif
3529 4112
3530#if EV_CHECK_ENABLE 4113#if EV_CHECK_ENABLE
3531void 4114void
3532ev_check_start (EV_P_ ev_check *w) 4115ev_check_start (EV_P_ ev_check *w) EV_THROW
3533{ 4116{
3534 if (expect_false (ev_is_active (w))) 4117 if (expect_false (ev_is_active (w)))
3535 return; 4118 return;
3536 4119
3537 EV_FREQUENT_CHECK; 4120 EV_FREQUENT_CHECK;
… …
3542 4125
3543 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
3544} 4127}
3545 4128
3546void 4129void
3547ev_check_stop (EV_P_ ev_check *w) 4130ev_check_stop (EV_P_ ev_check *w) EV_THROW
3548{ 4131{
3549 clear_pending (EV_A_ (W)w); 4132 clear_pending (EV_A_ (W)w);
3550 if (expect_false (!ev_is_active (w))) 4133 if (expect_false (!ev_is_active (w)))
3551 return; 4134 return;
3552 4135
… …
3565} 4148}
3566#endif 4149#endif
3567 4150
3568#if EV_EMBED_ENABLE 4151#if EV_EMBED_ENABLE
3569void noinline 4152void noinline
3570ev_embed_sweep (EV_P_ ev_embed *w) 4153ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3571{ 4154{
3572 ev_run (w->other, EVRUN_NOWAIT); 4155 ev_run (w->other, EVRUN_NOWAIT);
3573} 4156}
3574 4157
3575static void 4158static void
… …
3623 ev_idle_stop (EV_A_ idle); 4206 ev_idle_stop (EV_A_ idle);
3624} 4207}
3625#endif 4208#endif
3626 4209
3627void 4210void
3628ev_embed_start (EV_P_ ev_embed *w) 4211ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3629{ 4212{
3630 if (expect_false (ev_is_active (w))) 4213 if (expect_false (ev_is_active (w)))
3631 return; 4214 return;
3632 4215
3633 { 4216 {
… …
3654 4237
3655 EV_FREQUENT_CHECK; 4238 EV_FREQUENT_CHECK;
3656} 4239}
3657 4240
3658void 4241void
3659ev_embed_stop (EV_P_ ev_embed *w) 4242ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3660{ 4243{
3661 clear_pending (EV_A_ (W)w); 4244 clear_pending (EV_A_ (W)w);
3662 if (expect_false (!ev_is_active (w))) 4245 if (expect_false (!ev_is_active (w)))
3663 return; 4246 return;
3664 4247
… …
3674} 4257}
3675#endif 4258#endif
3676 4259
3677#if EV_FORK_ENABLE 4260#if EV_FORK_ENABLE
3678void 4261void
3679ev_fork_start (EV_P_ ev_fork *w) 4262ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3680{ 4263{
3681 if (expect_false (ev_is_active (w))) 4264 if (expect_false (ev_is_active (w)))
3682 return; 4265 return;
3683 4266
3684 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
… …
3689 4272
3690 EV_FREQUENT_CHECK; 4273 EV_FREQUENT_CHECK;
3691} 4274}
3692 4275
3693void 4276void
3694ev_fork_stop (EV_P_ ev_fork *w) 4277ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3695{ 4278{
3696 clear_pending (EV_A_ (W)w); 4279 clear_pending (EV_A_ (W)w);
3697 if (expect_false (!ev_is_active (w))) 4280 if (expect_false (!ev_is_active (w)))
3698 return; 4281 return;
3699 4282
… …
3712} 4295}
3713#endif 4296#endif
3714 4297
3715#if EV_CLEANUP_ENABLE 4298#if EV_CLEANUP_ENABLE
3716void 4299void
3717ev_cleanup_start (EV_P_ ev_cleanup *w) 4300ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3718{ 4301{
3719 if (expect_false (ev_is_active (w))) 4302 if (expect_false (ev_is_active (w)))
3720 return; 4303 return;
3721 4304
3722 EV_FREQUENT_CHECK; 4305 EV_FREQUENT_CHECK;
… …
3729 ev_unref (EV_A); 4312 ev_unref (EV_A);
3730 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
3731} 4314}
3732 4315
3733void 4316void
3734ev_cleanup_stop (EV_P_ ev_cleanup *w) 4317ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3735{ 4318{
3736 clear_pending (EV_A_ (W)w); 4319 clear_pending (EV_A_ (W)w);
3737 if (expect_false (!ev_is_active (w))) 4320 if (expect_false (!ev_is_active (w)))
3738 return; 4321 return;
3739 4322
… …
3753} 4336}
3754#endif 4337#endif
3755 4338
3756#if EV_ASYNC_ENABLE 4339#if EV_ASYNC_ENABLE
3757void 4340void
3758ev_async_start (EV_P_ ev_async *w) 4341ev_async_start (EV_P_ ev_async *w) EV_THROW
3759{ 4342{
3760 if (expect_false (ev_is_active (w))) 4343 if (expect_false (ev_is_active (w)))
3761 return; 4344 return;
3762 4345
3763 w->sent = 0; 4346 w->sent = 0;
… …
3772 4355
3773 EV_FREQUENT_CHECK; 4356 EV_FREQUENT_CHECK;
3774} 4357}
3775 4358
3776void 4359void
3777ev_async_stop (EV_P_ ev_async *w) 4360ev_async_stop (EV_P_ ev_async *w) EV_THROW
3778{ 4361{
3779 clear_pending (EV_A_ (W)w); 4362 clear_pending (EV_A_ (W)w);
3780 if (expect_false (!ev_is_active (w))) 4363 if (expect_false (!ev_is_active (w)))
3781 return; 4364 return;
3782 4365
… …
3793 4376
3794 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
3795} 4378}
3796 4379
3797void 4380void
3798ev_async_send (EV_P_ ev_async *w) 4381ev_async_send (EV_P_ ev_async *w) EV_THROW
3799{ 4382{
3800 w->sent = 1; 4383 w->sent = 1;
3801 evpipe_write (EV_A_ &async_pending); 4384 evpipe_write (EV_A_ &async_pending);
3802} 4385}
3803#endif 4386#endif
… …
3840 4423
3841 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4424 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3842} 4425}
3843 4426
3844void 4427void
3845ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4428ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3846{ 4429{
3847 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4430 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3848 4431
3849 if (expect_false (!once)) 4432 if (expect_false (!once))
3850 { 4433 {
… …
3871} 4454}
3872 4455
3873/*****************************************************************************/ 4456/*****************************************************************************/
3874 4457
3875#if EV_WALK_ENABLE 4458#if EV_WALK_ENABLE
3876void 4459void ecb_cold
3877ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4460ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3878{ 4461{
3879 int i, j; 4462 int i, j;
3880 ev_watcher_list *wl, *wn; 4463 ev_watcher_list *wl, *wn;
3881 4464
3882 if (types & (EV_IO | EV_EMBED)) 4465 if (types & (EV_IO | EV_EMBED))
… …
3925 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4508 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3926#endif 4509#endif
3927 4510
3928#if EV_IDLE_ENABLE 4511#if EV_IDLE_ENABLE
3929 if (types & EV_IDLE) 4512 if (types & EV_IDLE)
3930 for (j = NUMPRI; i--; ) 4513 for (j = NUMPRI; j--; )
3931 for (i = idlecnt [j]; i--; ) 4514 for (i = idlecnt [j]; i--; )
3932 cb (EV_A_ EV_IDLE, idles [j][i]); 4515 cb (EV_A_ EV_IDLE, idles [j][i]);
3933#endif 4516#endif
3934 4517
3935#if EV_FORK_ENABLE 4518#if EV_FORK_ENABLE
… …
3988 4571
3989#if EV_MULTIPLICITY 4572#if EV_MULTIPLICITY
3990 #include "ev_wrap.h" 4573 #include "ev_wrap.h"
3991#endif 4574#endif
3992 4575
3993EV_CPP(})
3994

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