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Comparing libev/ev.c (file contents):
Revision 1.376 by root, Sat Jun 4 05:33:29 2011 UTC vs.
Revision 1.453 by root, Thu Feb 28 00:33:25 2013 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
… …
347 357
348#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 360#endif
351 361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
376#endif
377
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* 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. */ 379/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 381# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
360# else 386# else
… …
363# endif 389# endif
364#endif 390#endif
365 391
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 393
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
377#endif 397#endif
378 398
… …
386# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
387#endif 407#endif
388 408
389#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 411# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 412# include <sys/select.h>
393# endif 413# endif
394#endif 414#endif
395 415
396#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 419/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
403# endif 423# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 424#endif
409 425
410#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 428# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 480#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 481
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 482#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) 483#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 484
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */
487/*
488 * libecb - http://software.schmorp.de/pkg/libecb
489 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved.
493 *
494 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met:
496 *
497 * 1. Redistributions of source code must retain the above copyright notice,
498 * this list of conditions and the following disclaimer.
499 *
500 * 2. Redistributions in binary form must reproduce the above copyright
501 * notice, this list of conditions and the following disclaimer in the
502 * documentation and/or other materials provided with the distribution.
503 *
504 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
505 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
506 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
507 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
508 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE.
514 */
515
516#ifndef ECB_H
517#define ECB_H
518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010002
521
522#ifdef _WIN32
523 typedef signed char int8_t;
524 typedef unsigned char uint8_t;
525 typedef signed short int16_t;
526 typedef unsigned short uint16_t;
527 typedef signed int int32_t;
528 typedef unsigned int uint32_t;
469#if __GNUC__ >= 4 529 #if __GNUC__
470# define expect(expr,value) __builtin_expect ((expr),(value)) 530 typedef signed long long int64_t;
471# define noinline __attribute__ ((noinline)) 531 typedef unsigned long long uint64_t;
532 #else /* _MSC_VER || __BORLANDC__ */
533 typedef signed __int64 int64_t;
534 typedef unsigned __int64 uint64_t;
535 #endif
536 #ifdef _WIN64
537 #define ECB_PTRSIZE 8
538 typedef uint64_t uintptr_t;
539 typedef int64_t intptr_t;
540 #else
541 #define ECB_PTRSIZE 4
542 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t;
544 #endif
472#else 545#else
473# define expect(expr,value) (expr) 546 #include <inttypes.h>
474# define noinline 547 #if UINTMAX_MAX > 0xffffffffU
475# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 548 #define ECB_PTRSIZE 8
476# define inline 549 #else
550 #define ECB_PTRSIZE 4
551 #endif
477# endif 552#endif
553
554/* many compilers define _GNUC_ to some versions but then only implement
555 * what their idiot authors think are the "more important" extensions,
556 * causing enormous grief in return for some better fake benchmark numbers.
557 * or so.
558 * we try to detect these and simply assume they are not gcc - if they have
559 * an issue with that they should have done it right in the first place.
560 */
561#ifndef ECB_GCC_VERSION
562 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
563 #define ECB_GCC_VERSION(major,minor) 0
564 #else
565 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
478#endif 566 #endif
567#endif
479 568
569#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
570#define ECB_C99 (__STDC_VERSION__ >= 199901L)
571#define ECB_C11 (__STDC_VERSION__ >= 201112L)
572#define ECB_CPP (__cplusplus+0)
573#define ECB_CPP11 (__cplusplus >= 201103L)
574
575#if ECB_CPP
576 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END }
579#else
580 #define ECB_EXTERN_C extern
581 #define ECB_EXTERN_C_BEG
582 #define ECB_EXTERN_C_END
583#endif
584
585/*****************************************************************************/
586
587/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
588/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
589
590#if ECB_NO_THREADS
591 #define ECB_NO_SMP 1
592#endif
593
594#if ECB_NO_SMP
595 #define ECB_MEMORY_FENCE do { } while (0)
596#endif
597
598#ifndef ECB_MEMORY_FENCE
599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #if __i386 || __i386__
601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
624 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
631 #endif
632 #endif
633#endif
634
635#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
639
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model.
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */
648
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #define ECB_MEMORY_FENCE __sync_synchronize ()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
656 #elif defined _WIN32
657 #include <WinNT.h>
658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
663 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
664 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync ()
666 #endif
667#endif
668
669#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* we assume that these memory fences work on all variables/all memory accesses, */
672 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
681 #endif
682#endif
683
684#ifndef ECB_MEMORY_FENCE
685 #if !ECB_AVOID_PTHREADS
686 /*
687 * if you get undefined symbol references to pthread_mutex_lock,
688 * or failure to find pthread.h, then you should implement
689 * the ECB_MEMORY_FENCE operations for your cpu/compiler
690 * OR provide pthread.h and link against the posix thread library
691 * of your system.
692 */
693 #include <pthread.h>
694 #define ECB_NEEDS_PTHREADS 1
695 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
696
697 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
699 #endif
700#endif
701
702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
704#endif
705
706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif
709
710/*****************************************************************************/
711
712#if __cplusplus
713 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__
716#elif ECB_C99
717 #define ecb_inline static inline
718#else
719 #define ecb_inline static
720#endif
721
722#if ECB_GCC_VERSION(3,3)
723 #define ecb_restrict __restrict__
724#elif ECB_C99
725 #define ecb_restrict restrict
726#else
727 #define ecb_restrict
728#endif
729
730typedef int ecb_bool;
731
732#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a
735#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
736
737#define ecb_function_ ecb_inline
738
739#if ECB_GCC_VERSION(3,1)
740 #define ecb_attribute(attrlist) __attribute__(attrlist)
741 #define ecb_is_constant(expr) __builtin_constant_p (expr)
742 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else
745 #define ecb_attribute(attrlist)
746 #define ecb_is_constant(expr) 0
747 #define ecb_expect(expr,value) (expr)
748 #define ecb_prefetch(addr,rw,locality)
749#endif
750
751/* no emulation for ecb_decltype */
752#if ECB_GCC_VERSION(4,5)
753 #define ecb_decltype(x) __decltype(x)
754#elif ECB_GCC_VERSION(3,0)
755 #define ecb_decltype(x) __typeof(x)
756#endif
757
758#define ecb_noinline ecb_attribute ((__noinline__))
759#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__))
762
763#if ECB_C11
764 #define ecb_noreturn _Noreturn
765#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif
768
769#if ECB_GCC_VERSION(4,3)
770 #define ecb_artificial ecb_attribute ((__artificial__))
771 #define ecb_hot ecb_attribute ((__hot__))
772 #define ecb_cold ecb_attribute ((__cold__))
773#else
774 #define ecb_artificial
775 #define ecb_hot
776 #define ecb_cold
777#endif
778
779/* put around conditional expressions if you are very sure that the */
780/* expression is mostly true or mostly false. note that these return */
781/* booleans, not the expression. */
480#define expect_false(expr) expect ((expr) != 0, 0) 782#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481#define expect_true(expr) expect ((expr) != 0, 1) 783#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
784/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr)
787
788/* count trailing zero bits and count # of one bits */
789#if ECB_GCC_VERSION(3,4)
790 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */
797#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
799 ecb_function_ int
800 ecb_ctz32 (uint32_t x)
801 {
802 int r = 0;
803
804 x &= ~x + 1; /* this isolates the lowest bit */
805
806#if ECB_branchless_on_i386
807 r += !!(x & 0xaaaaaaaa) << 0;
808 r += !!(x & 0xcccccccc) << 1;
809 r += !!(x & 0xf0f0f0f0) << 2;
810 r += !!(x & 0xff00ff00) << 3;
811 r += !!(x & 0xffff0000) << 4;
812#else
813 if (x & 0xaaaaaaaa) r += 1;
814 if (x & 0xcccccccc) r += 2;
815 if (x & 0xf0f0f0f0) r += 4;
816 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16;
818#endif
819
820 return r;
821 }
822
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
824 ecb_function_ int
825 ecb_ctz64 (uint64_t x)
826 {
827 int shift = x & 0xffffffffU ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift;
829 }
830
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
832 ecb_function_ int
833 ecb_popcount32 (uint32_t x)
834 {
835 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101;
839
840 return x >> 24;
841 }
842
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
844 ecb_function_ int ecb_ld32 (uint32_t x)
845 {
846 int r = 0;
847
848 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; }
853
854 return r;
855 }
856
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
858 ecb_function_ int ecb_ld64 (uint64_t x)
859 {
860 int r = 0;
861
862 if (x >> 32) { x >>= 32; r += 32; }
863
864 return r + ecb_ld32 (x);
865 }
866#endif
867
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
875{
876 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878}
879
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
882{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8);
887
888 return x;
889}
890
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
893{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
898 x = ( x >> 16 ) | ( x << 16);
899
900 return x;
901}
902
903/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
906ecb_function_ int
907ecb_popcount64 (uint64_t x)
908{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910}
911
912ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
913ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
914ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
915ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
916ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
917ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
918ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
919ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
920
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
929
930#if ECB_GCC_VERSION(4,3)
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
932 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #define ecb_bswap64(x) __builtin_bswap64 (x)
934#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
936 ecb_function_ uint16_t
937 ecb_bswap16 (uint16_t x)
938 {
939 return ecb_rotl16 (x, 8);
940 }
941
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
943 ecb_function_ uint32_t
944 ecb_bswap32 (uint32_t x)
945 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 }
948
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
950 ecb_function_ uint64_t
951 ecb_bswap64 (uint64_t x)
952 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 }
955#endif
956
957#if ECB_GCC_VERSION(4,5)
958 #define ecb_unreachable() __builtin_unreachable ()
959#else
960 /* this seems to work fine, but gcc always emits a warning for it :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
962 ecb_inline void ecb_unreachable (void) { }
963#endif
964
965/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
969ecb_inline unsigned char
970ecb_byteorder_helper (void)
971{
972 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
981 return 0x44;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
983 return 0x11;
984#else
985 union
986 {
987 uint32_t i;
988 uint8_t c;
989 } u = { 0x11223344 };
990 return u.c;
991#endif
992}
993
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
998
999#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1001#else
1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif
1004
1005#if __cplusplus
1006 template<typename T>
1007 static inline T ecb_div_rd (T val, T div)
1008 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 }
1011 template<typename T>
1012 static inline T ecb_div_ru (T val, T div)
1013 {
1014 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1015 }
1016#else
1017 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1018 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1019#endif
1020
1021#if ecb_cplusplus_does_not_suck
1022 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1023 template<typename T, int N>
1024 static inline int ecb_array_length (const T (&arr)[N])
1025 {
1026 return N;
1027 }
1028#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif
1031
1032/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034
1035/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \
1038 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \
1044 || defined __alpha__ \
1045 || defined __hppa__ \
1046 || defined __ia64__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1048 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */
1050#else
1051 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif
1054
1055#ifndef ECB_NO_LIBM
1056
1057 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1059 ecb_function_ uint32_t
1060 ecb_float_to_binary32 (float x)
1061 {
1062 uint32_t r;
1063
1064 #if ECB_STDFP
1065 memcpy (&r, &x, 4);
1066 #else
1067 /* slow emulation, works for anything but -0 */
1068 uint32_t m;
1069 int e;
1070
1071 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU;
1075
1076 m = frexpf (x, &e) * 0x1000000U;
1077
1078 r = m & 0x80000000U;
1079
1080 if (r)
1081 m = -m;
1082
1083 if (e <= -126)
1084 {
1085 m &= 0xffffffU;
1086 m >>= (-125 - e);
1087 e = -126;
1088 }
1089
1090 r |= (e + 126) << 23;
1091 r |= m & 0x7fffffU;
1092 #endif
1093
1094 return r;
1095 }
1096
1097 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1099 ecb_function_ float
1100 ecb_binary32_to_float (uint32_t x)
1101 {
1102 float r;
1103
1104 #if ECB_STDFP
1105 memcpy (&r, &x, 4);
1106 #else
1107 /* emulation, only works for normals and subnormals and +0 */
1108 int neg = x >> 31;
1109 int e = (x >> 23) & 0xffU;
1110
1111 x &= 0x7fffffU;
1112
1113 if (e)
1114 x |= 0x800000U;
1115 else
1116 e = 1;
1117
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1120
1121 r = neg ? -r : r;
1122 #endif
1123
1124 return r;
1125 }
1126
1127 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1129 ecb_function_ uint64_t
1130 ecb_double_to_binary64 (double x)
1131 {
1132 uint64_t r;
1133
1134 #if ECB_STDFP
1135 memcpy (&r, &x, 8);
1136 #else
1137 /* slow emulation, works for anything but -0 */
1138 uint64_t m;
1139 int e;
1140
1141 if (x == 0e0 ) return 0x0000000000000000U;
1142 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1143 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1144 if (x != x ) return 0X7ff7ffffffffffffU;
1145
1146 m = frexp (x, &e) * 0x20000000000000U;
1147
1148 r = m & 0x8000000000000000;;
1149
1150 if (r)
1151 m = -m;
1152
1153 if (e <= -1022)
1154 {
1155 m &= 0x1fffffffffffffU;
1156 m >>= (-1021 - e);
1157 e = -1022;
1158 }
1159
1160 r |= ((uint64_t)(e + 1022)) << 52;
1161 r |= m & 0xfffffffffffffU;
1162 #endif
1163
1164 return r;
1165 }
1166
1167 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1169 ecb_function_ double
1170 ecb_binary64_to_double (uint64_t x)
1171 {
1172 double r;
1173
1174 #if ECB_STDFP
1175 memcpy (&r, &x, 8);
1176 #else
1177 /* emulation, only works for normals and subnormals and +0 */
1178 int neg = x >> 63;
1179 int e = (x >> 52) & 0x7ffU;
1180
1181 x &= 0xfffffffffffffU;
1182
1183 if (e)
1184 x |= 0x10000000000000U;
1185 else
1186 e = 1;
1187
1188 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1189 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1190
1191 r = neg ? -r : r;
1192 #endif
1193
1194 return r;
1195 }
1196
1197#endif
1198
1199#endif
1200
1201/* ECB.H END */
1202
1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1204/* if your architecture doesn't need memory fences, e.g. because it is
1205 * single-cpu/core, or if you use libev in a project that doesn't use libev
1206 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1207 * libev, in which cases the memory fences become nops.
1208 * alternatively, you can remove this #error and link against libpthread,
1209 * which will then provide the memory fences.
1210 */
1211# error "memory fences not defined for your architecture, please report"
1212#endif
1213
1214#ifndef ECB_MEMORY_FENCE
1215# define ECB_MEMORY_FENCE do { } while (0)
1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1218#endif
1219
1220#define expect_false(cond) ecb_expect_false (cond)
1221#define expect_true(cond) ecb_expect_true (cond)
1222#define noinline ecb_noinline
1223
482#define inline_size static inline 1224#define inline_size ecb_inline
483 1225
484#if EV_FEATURE_CODE 1226#if EV_FEATURE_CODE
485# define inline_speed static inline 1227# define inline_speed ecb_inline
486#else 1228#else
487# define inline_speed static noinline 1229# define inline_speed static noinline
488#endif 1230#endif
489 1231
490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
581 1323
582#ifdef __linux 1324#ifdef __linux
583# include <sys/utsname.h> 1325# include <sys/utsname.h>
584#endif 1326#endif
585 1327
586static unsigned int noinline 1328static unsigned int noinline ecb_cold
587ev_linux_version (void) 1329ev_linux_version (void)
588{ 1330{
589#ifdef __linux 1331#ifdef __linux
590 unsigned int v = 0; 1332 unsigned int v = 0;
591 struct utsname buf; 1333 struct utsname buf;
… …
620} 1362}
621 1363
622/*****************************************************************************/ 1364/*****************************************************************************/
623 1365
624#if EV_AVOID_STDIO 1366#if EV_AVOID_STDIO
625static void noinline 1367static void noinline ecb_cold
626ev_printerr (const char *msg) 1368ev_printerr (const char *msg)
627{ 1369{
628 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
629} 1371}
630#endif 1372#endif
631 1373
632static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
633 1375
634void 1376void ecb_cold
635ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636{ 1378{
637 syserr_cb = cb; 1379 syserr_cb = cb;
638} 1380}
639 1381
640static void noinline 1382static void noinline ecb_cold
641ev_syserr (const char *msg) 1383ev_syserr (const char *msg)
642{ 1384{
643 if (!msg) 1385 if (!msg)
644 msg = "(libev) system error"; 1386 msg = "(libev) system error";
645 1387
… …
658 abort (); 1400 abort ();
659 } 1401 }
660} 1402}
661 1403
662static void * 1404static void *
663ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
664{ 1406{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
668 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
669 * implement realloc (x, 0) (as required by both ansi c-89 and 1408 * implement realloc (x, 0) (as required by both ansi c-89 and
670 * the single unix specification, so work around them here. 1409 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it,
1411 * despite documenting it otherwise.
671 */ 1412 */
672 1413
673 if (size) 1414 if (size)
674 return realloc (ptr, size); 1415 return realloc (ptr, size);
675 1416
676 free (ptr); 1417 free (ptr);
677 return 0; 1418 return 0;
678#endif
679} 1419}
680 1420
681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682 1422
683void 1423void ecb_cold
684ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685{ 1425{
686 alloc = cb; 1426 alloc = cb;
687} 1427}
688 1428
689inline_speed void * 1429inline_speed void *
… …
777 #undef VAR 1517 #undef VAR
778 }; 1518 };
779 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
780 1520
781 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
782 struct ev_loop *ev_default_loop_ptr; 1522 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783 1523
784#else 1524#else
785 1525
786 ev_tstamp ev_rt_now; 1526 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; 1527 #define VAR(name,decl) static decl;
788 #include "ev_vars.h" 1528 #include "ev_vars.h"
789 #undef VAR 1529 #undef VAR
790 1530
791 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
… …
806 1546
807/*****************************************************************************/ 1547/*****************************************************************************/
808 1548
809#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
810ev_tstamp 1550ev_tstamp
811ev_time (void) 1551ev_time (void) EV_THROW
812{ 1552{
813#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
814 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
815 { 1555 {
816 struct timespec ts; 1556 struct timespec ts;
… …
840 return ev_time (); 1580 return ev_time ();
841} 1581}
842 1582
843#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
844ev_tstamp 1584ev_tstamp
845ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
846{ 1586{
847 return ev_rt_now; 1587 return ev_rt_now;
848} 1588}
849#endif 1589#endif
850 1590
851void 1591void
852ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
853{ 1593{
854 if (delay > 0.) 1594 if (delay > 0.)
855 { 1595 {
856#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
857 struct timespec ts; 1597 struct timespec ts;
858 1598
859 EV_TS_SET (ts, delay); 1599 EV_TS_SET (ts, delay);
860 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
861#elif defined(_WIN32) 1601#elif defined _WIN32
862 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
863#else 1603#else
864 struct timeval tv; 1604 struct timeval tv;
865 1605
866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
885 1625
886 do 1626 do
887 ncur <<= 1; 1627 ncur <<= 1;
888 while (cnt > ncur); 1628 while (cnt > ncur);
889 1629
890 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1630 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892 { 1632 {
893 ncur *= elem; 1633 ncur *= elem;
894 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1634 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
897 } 1637 }
898 1638
899 return ncur; 1639 return ncur;
900} 1640}
901 1641
902static noinline void * 1642static void * noinline ecb_cold
903array_realloc (int elem, void *base, int *cur, int cnt) 1643array_realloc (int elem, void *base, int *cur, int cnt)
904{ 1644{
905 *cur = array_nextsize (elem, *cur, cnt); 1645 *cur = array_nextsize (elem, *cur, cnt);
906 return ev_realloc (base, elem * *cur); 1646 return ev_realloc (base, elem * *cur);
907} 1647}
… …
910 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1650 memset ((void *)(base), 0, sizeof (*(base)) * (count))
911 1651
912#define array_needsize(type,base,cur,cnt,init) \ 1652#define array_needsize(type,base,cur,cnt,init) \
913 if (expect_false ((cnt) > (cur))) \ 1653 if (expect_false ((cnt) > (cur))) \
914 { \ 1654 { \
915 int ocur_ = (cur); \ 1655 int ecb_unused ocur_ = (cur); \
916 (base) = (type *)array_realloc \ 1656 (base) = (type *)array_realloc \
917 (sizeof (type), (base), &(cur), (cnt)); \ 1657 (sizeof (type), (base), &(cur), (cnt)); \
918 init ((base) + (ocur_), (cur) - ocur_); \ 1658 init ((base) + (ocur_), (cur) - ocur_); \
919 } 1659 }
920 1660
… …
938pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
939{ 1679{
940} 1680}
941 1681
942void noinline 1682void noinline
943ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944{ 1684{
945 W w_ = (W)w; 1685 W w_ = (W)w;
946 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
947 1687
948 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
952 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
953 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
955 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
956 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
957} 1699}
958 1700
959inline_speed void 1701inline_speed void
960feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
961{ 1703{
… …
1007 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
1008 fd_event_nocheck (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
1009} 1751}
1010 1752
1011void 1753void
1012ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013{ 1755{
1014 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
1015 fd_event_nocheck (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
1016} 1758}
1017 1759
… …
1090 fdchanges [fdchangecnt - 1] = fd; 1832 fdchanges [fdchangecnt - 1] = fd;
1091 } 1833 }
1092} 1834}
1093 1835
1094/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1836/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095inline_speed void 1837inline_speed void ecb_cold
1096fd_kill (EV_P_ int fd) 1838fd_kill (EV_P_ int fd)
1097{ 1839{
1098 ev_io *w; 1840 ev_io *w;
1099 1841
1100 while ((w = (ev_io *)anfds [fd].head)) 1842 while ((w = (ev_io *)anfds [fd].head))
… …
1103 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1845 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104 } 1846 }
1105} 1847}
1106 1848
1107/* check whether the given fd is actually valid, for error recovery */ 1849/* check whether the given fd is actually valid, for error recovery */
1108inline_size int 1850inline_size int ecb_cold
1109fd_valid (int fd) 1851fd_valid (int fd)
1110{ 1852{
1111#ifdef _WIN32 1853#ifdef _WIN32
1112 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113#else 1855#else
1114 return fcntl (fd, F_GETFD) != -1; 1856 return fcntl (fd, F_GETFD) != -1;
1115#endif 1857#endif
1116} 1858}
1117 1859
1118/* called on EBADF to verify fds */ 1860/* called on EBADF to verify fds */
1119static void noinline 1861static void noinline ecb_cold
1120fd_ebadf (EV_P) 1862fd_ebadf (EV_P)
1121{ 1863{
1122 int fd; 1864 int fd;
1123 1865
1124 for (fd = 0; fd < anfdmax; ++fd) 1866 for (fd = 0; fd < anfdmax; ++fd)
… …
1126 if (!fd_valid (fd) && errno == EBADF) 1868 if (!fd_valid (fd) && errno == EBADF)
1127 fd_kill (EV_A_ fd); 1869 fd_kill (EV_A_ fd);
1128} 1870}
1129 1871
1130/* called on ENOMEM in select/poll to kill some fds and retry */ 1872/* called on ENOMEM in select/poll to kill some fds and retry */
1131static void noinline 1873static void noinline ecb_cold
1132fd_enomem (EV_P) 1874fd_enomem (EV_P)
1133{ 1875{
1134 int fd; 1876 int fd;
1135 1877
1136 for (fd = anfdmax; fd--; ) 1878 for (fd = anfdmax; fd--; )
… …
1331 2073
1332/*****************************************************************************/ 2074/*****************************************************************************/
1333 2075
1334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335 2077
1336static void noinline 2078static void noinline ecb_cold
1337evpipe_init (EV_P) 2079evpipe_init (EV_P)
1338{ 2080{
1339 if (!ev_is_active (&pipe_w)) 2081 if (!ev_is_active (&pipe_w))
1340 { 2082 {
2083 int fds [2];
2084
1341# if EV_USE_EVENTFD 2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
1342 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1343 if (evfd < 0 && errno == EINVAL) 2088 if (fds [1] < 0 && errno == EINVAL)
1344 evfd = eventfd (0, 0); 2089 fds [1] = eventfd (0, 0);
1345 2090
1346 if (evfd >= 0) 2091 if (fds [1] < 0)
2092# endif
1347 { 2093 {
2094 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe");
2096
2097 fd_intern (fds [0]);
2098 }
2099
2100 fd_intern (fds [1]);
2101
1348 evpipe [0] = -1; 2102 evpipe [0] = fds [0];
1349 fd_intern (evfd); /* doing it twice doesn't hurt */ 2103
1350 ev_io_set (&pipe_w, evfd, EV_READ); 2104 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */
2106 else
2107 {
2108 /* on subsequent calls, do not change evpipe [1] */
2109 /* so that evpipe_write can always rely on its value. */
2110 /* this branch does not do anything sensible on windows, */
2111 /* so must not be executed on windows */
2112
2113 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]);
2115 }
2116
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 }
2121}
2122
2123inline_speed void
2124evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2125{
2126 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2127
2128 if (expect_true (*flag))
2129 return;
2130
2131 *flag = 1;
2132 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2133
2134 pipe_write_skipped = 1;
2135
2136 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2137
2138 if (pipe_write_wanted)
2139 {
2140 int old_errno;
2141
2142 pipe_write_skipped = 0;
2143 ECB_MEMORY_FENCE_RELEASE;
2144
2145 old_errno = errno; /* save errno because write will clobber it */
2146
2147#if EV_USE_EVENTFD
2148 if (evpipe [0] < 0)
2149 {
2150 uint64_t counter = 1;
2151 write (evpipe [1], &counter, sizeof (uint64_t));
1351 } 2152 }
1352 else 2153 else
1353# endif 2154#endif
1354 { 2155 {
1355 while (pipe (evpipe)) 2156#ifdef _WIN32
1356 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1357 2158 DWORD sent;
1358 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1359 fd_intern (evpipe [1]); 2160 buf.len = 1;
1360 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2162#else
2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1361 } 2165 }
1362
1363 ev_io_start (EV_A_ &pipe_w);
1364 ev_unref (EV_A); /* watcher should not keep loop alive */
1365 }
1366}
1367
1368inline_size void
1369evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370{
1371 if (!*flag)
1372 {
1373 int old_errno = errno; /* save errno because write might clobber it */
1374 char dummy;
1375
1376 *flag = 1;
1377
1378#if EV_USE_EVENTFD
1379 if (evfd >= 0)
1380 {
1381 uint64_t counter = 1;
1382 write (evfd, &counter, sizeof (uint64_t));
1383 }
1384 else
1385#endif
1386 /* win32 people keep sending patches that change this write() to send() */
1387 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1388 /* so when you think this write should be a send instead, please find out */
1389 /* where your send() is from - it's definitely not the microsoft send, and */
1390 /* tell me. thank you. */
1391 write (evpipe [1], &dummy, 1);
1392 2166
1393 errno = old_errno; 2167 errno = old_errno;
1394 } 2168 }
1395} 2169}
1396 2170
… …
1399static void 2173static void
1400pipecb (EV_P_ ev_io *iow, int revents) 2174pipecb (EV_P_ ev_io *iow, int revents)
1401{ 2175{
1402 int i; 2176 int i;
1403 2177
2178 if (revents & EV_READ)
2179 {
1404#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1405 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1406 { 2182 {
1407 uint64_t counter; 2183 uint64_t counter;
1408 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1409 } 2185 }
1410 else 2186 else
1411#endif 2187#endif
1412 { 2188 {
1413 char dummy; 2189 char dummy[4];
1414 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2190#ifdef _WIN32
2191 WSABUF buf;
2192 DWORD recvd;
2193 DWORD flags = 0;
2194 buf.buf = dummy;
2195 buf.len = sizeof (dummy);
2196 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2197#else
1415 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
2200 }
1416 } 2201 }
2202
2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1417 2206
1418#if EV_SIGNAL_ENABLE 2207#if EV_SIGNAL_ENABLE
1419 if (sig_pending) 2208 if (sig_pending)
1420 { 2209 {
1421 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1422 2213
1423 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1424 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1425 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1426 } 2217 }
… …
1428 2219
1429#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1430 if (async_pending) 2221 if (async_pending)
1431 { 2222 {
1432 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1433 2226
1434 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1435 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1436 { 2229 {
1437 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1438 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1439 } 2233 }
1440 } 2234 }
1441#endif 2235#endif
1442} 2236}
1443 2237
1444/*****************************************************************************/ 2238/*****************************************************************************/
1445 2239
1446void 2240void
1447ev_feed_signal (int signum) 2241ev_feed_signal (int signum) EV_THROW
1448{ 2242{
1449#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
2244 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE;
1450 EV_P = signals [signum - 1].loop; 2246 EV_A = signals [signum - 1].loop;
1451 2247
1452 if (!EV_A) 2248 if (!EV_A)
1453 return; 2249 return;
1454#endif 2250#endif
1455 2251
… …
1466 2262
1467 ev_feed_signal (signum); 2263 ev_feed_signal (signum);
1468} 2264}
1469 2265
1470void noinline 2266void noinline
1471ev_feed_signal_event (EV_P_ int signum) 2267ev_feed_signal_event (EV_P_ int signum) EV_THROW
1472{ 2268{
1473 WL w; 2269 WL w;
1474 2270
1475 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2271 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1476 return; 2272 return;
1477 2273
1478 --signum; 2274 --signum;
1479 2275
1480#if EV_MULTIPLICITY 2276#if EV_MULTIPLICITY
… …
1484 if (expect_false (signals [signum].loop != EV_A)) 2280 if (expect_false (signals [signum].loop != EV_A))
1485 return; 2281 return;
1486#endif 2282#endif
1487 2283
1488 signals [signum].pending = 0; 2284 signals [signum].pending = 0;
2285 ECB_MEMORY_FENCE_RELEASE;
1489 2286
1490 for (w = signals [signum].head; w; w = w->next) 2287 for (w = signals [signum].head; w; w = w->next)
1491 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2288 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1492} 2289}
1493 2290
… …
1591#endif 2388#endif
1592#if EV_USE_SELECT 2389#if EV_USE_SELECT
1593# include "ev_select.c" 2390# include "ev_select.c"
1594#endif 2391#endif
1595 2392
1596int 2393int ecb_cold
1597ev_version_major (void) 2394ev_version_major (void) EV_THROW
1598{ 2395{
1599 return EV_VERSION_MAJOR; 2396 return EV_VERSION_MAJOR;
1600} 2397}
1601 2398
1602int 2399int ecb_cold
1603ev_version_minor (void) 2400ev_version_minor (void) EV_THROW
1604{ 2401{
1605 return EV_VERSION_MINOR; 2402 return EV_VERSION_MINOR;
1606} 2403}
1607 2404
1608/* return true if we are running with elevated privileges and should ignore env variables */ 2405/* return true if we are running with elevated privileges and should ignore env variables */
1609int inline_size 2406int inline_size ecb_cold
1610enable_secure (void) 2407enable_secure (void)
1611{ 2408{
1612#ifdef _WIN32 2409#ifdef _WIN32
1613 return 0; 2410 return 0;
1614#else 2411#else
1615 return getuid () != geteuid () 2412 return getuid () != geteuid ()
1616 || getgid () != getegid (); 2413 || getgid () != getegid ();
1617#endif 2414#endif
1618} 2415}
1619 2416
1620unsigned int 2417unsigned int ecb_cold
1621ev_supported_backends (void) 2418ev_supported_backends (void) EV_THROW
1622{ 2419{
1623 unsigned int flags = 0; 2420 unsigned int flags = 0;
1624 2421
1625 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1626 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1629 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2426 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1630 2427
1631 return flags; 2428 return flags;
1632} 2429}
1633 2430
1634unsigned int 2431unsigned int ecb_cold
1635ev_recommended_backends (void) 2432ev_recommended_backends (void) EV_THROW
1636{ 2433{
1637 unsigned int flags = ev_supported_backends (); 2434 unsigned int flags = ev_supported_backends ();
1638 2435
1639#ifndef __NetBSD__ 2436#ifndef __NetBSD__
1640 /* kqueue is borked on everything but netbsd apparently */ 2437 /* kqueue is borked on everything but netbsd apparently */
… …
1651#endif 2448#endif
1652 2449
1653 return flags; 2450 return flags;
1654} 2451}
1655 2452
1656unsigned int 2453unsigned int ecb_cold
1657ev_embeddable_backends (void) 2454ev_embeddable_backends (void) EV_THROW
1658{ 2455{
1659 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1660 2457
1661 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2458 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1662 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2459 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1664 2461
1665 return flags; 2462 return flags;
1666} 2463}
1667 2464
1668unsigned int 2465unsigned int
1669ev_backend (EV_P) 2466ev_backend (EV_P) EV_THROW
1670{ 2467{
1671 return backend; 2468 return backend;
1672} 2469}
1673 2470
1674#if EV_FEATURE_API 2471#if EV_FEATURE_API
1675unsigned int 2472unsigned int
1676ev_iteration (EV_P) 2473ev_iteration (EV_P) EV_THROW
1677{ 2474{
1678 return loop_count; 2475 return loop_count;
1679} 2476}
1680 2477
1681unsigned int 2478unsigned int
1682ev_depth (EV_P) 2479ev_depth (EV_P) EV_THROW
1683{ 2480{
1684 return loop_depth; 2481 return loop_depth;
1685} 2482}
1686 2483
1687void 2484void
1688ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1689{ 2486{
1690 io_blocktime = interval; 2487 io_blocktime = interval;
1691} 2488}
1692 2489
1693void 2490void
1694ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1695{ 2492{
1696 timeout_blocktime = interval; 2493 timeout_blocktime = interval;
1697} 2494}
1698 2495
1699void 2496void
1700ev_set_userdata (EV_P_ void *data) 2497ev_set_userdata (EV_P_ void *data) EV_THROW
1701{ 2498{
1702 userdata = data; 2499 userdata = data;
1703} 2500}
1704 2501
1705void * 2502void *
1706ev_userdata (EV_P) 2503ev_userdata (EV_P) EV_THROW
1707{ 2504{
1708 return userdata; 2505 return userdata;
1709} 2506}
1710 2507
2508void
1711void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2509ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1712{ 2510{
1713 invoke_cb = invoke_pending_cb; 2511 invoke_cb = invoke_pending_cb;
1714} 2512}
1715 2513
2514void
1716void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2515ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1717{ 2516{
1718 release_cb = release; 2517 release_cb = release;
1719 acquire_cb = acquire; 2518 acquire_cb = acquire;
1720} 2519}
1721#endif 2520#endif
1722 2521
1723/* initialise a loop structure, must be zero-initialised */ 2522/* initialise a loop structure, must be zero-initialised */
1724static void noinline 2523static void noinline ecb_cold
1725loop_init (EV_P_ unsigned int flags) 2524loop_init (EV_P_ unsigned int flags) EV_THROW
1726{ 2525{
1727 if (!backend) 2526 if (!backend)
1728 { 2527 {
1729 origflags = flags; 2528 origflags = flags;
1730 2529
… …
1757 if (!(flags & EVFLAG_NOENV) 2556 if (!(flags & EVFLAG_NOENV)
1758 && !enable_secure () 2557 && !enable_secure ()
1759 && getenv ("LIBEV_FLAGS")) 2558 && getenv ("LIBEV_FLAGS"))
1760 flags = atoi (getenv ("LIBEV_FLAGS")); 2559 flags = atoi (getenv ("LIBEV_FLAGS"));
1761 2560
1762 ev_rt_now = ev_time (); 2561 ev_rt_now = ev_time ();
1763 mn_now = get_clock (); 2562 mn_now = get_clock ();
1764 now_floor = mn_now; 2563 now_floor = mn_now;
1765 rtmn_diff = ev_rt_now - mn_now; 2564 rtmn_diff = ev_rt_now - mn_now;
1766#if EV_FEATURE_API 2565#if EV_FEATURE_API
1767 invoke_cb = ev_invoke_pending; 2566 invoke_cb = ev_invoke_pending;
1768#endif 2567#endif
1769 2568
1770 io_blocktime = 0.; 2569 io_blocktime = 0.;
1771 timeout_blocktime = 0.; 2570 timeout_blocktime = 0.;
1772 backend = 0; 2571 backend = 0;
1773 backend_fd = -1; 2572 backend_fd = -1;
1774 sig_pending = 0; 2573 sig_pending = 0;
1775#if EV_ASYNC_ENABLE 2574#if EV_ASYNC_ENABLE
1776 async_pending = 0; 2575 async_pending = 0;
1777#endif 2576#endif
2577 pipe_write_skipped = 0;
2578 pipe_write_wanted = 0;
2579 evpipe [0] = -1;
2580 evpipe [1] = -1;
1778#if EV_USE_INOTIFY 2581#if EV_USE_INOTIFY
1779 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1780#endif 2583#endif
1781#if EV_USE_SIGNALFD 2584#if EV_USE_SIGNALFD
1782 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2585 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1783#endif 2586#endif
1784 2587
1785 if (!(flags & EVBACKEND_MASK)) 2588 if (!(flags & EVBACKEND_MASK))
1786 flags |= ev_recommended_backends (); 2589 flags |= ev_recommended_backends ();
1787 2590
… …
1812#endif 2615#endif
1813 } 2616 }
1814} 2617}
1815 2618
1816/* free up a loop structure */ 2619/* free up a loop structure */
1817void 2620void ecb_cold
1818ev_loop_destroy (EV_P) 2621ev_loop_destroy (EV_P)
1819{ 2622{
1820 int i; 2623 int i;
1821 2624
1822#if EV_MULTIPLICITY 2625#if EV_MULTIPLICITY
… …
1833 EV_INVOKE_PENDING; 2636 EV_INVOKE_PENDING;
1834 } 2637 }
1835#endif 2638#endif
1836 2639
1837#if EV_CHILD_ENABLE 2640#if EV_CHILD_ENABLE
1838 if (ev_is_active (&childev)) 2641 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1839 { 2642 {
1840 ev_ref (EV_A); /* child watcher */ 2643 ev_ref (EV_A); /* child watcher */
1841 ev_signal_stop (EV_A_ &childev); 2644 ev_signal_stop (EV_A_ &childev);
1842 } 2645 }
1843#endif 2646#endif
… …
1845 if (ev_is_active (&pipe_w)) 2648 if (ev_is_active (&pipe_w))
1846 { 2649 {
1847 /*ev_ref (EV_A);*/ 2650 /*ev_ref (EV_A);*/
1848 /*ev_io_stop (EV_A_ &pipe_w);*/ 2651 /*ev_io_stop (EV_A_ &pipe_w);*/
1849 2652
1850#if EV_USE_EVENTFD
1851 if (evfd >= 0)
1852 close (evfd);
1853#endif
1854
1855 if (evpipe [0] >= 0)
1856 {
1857 EV_WIN32_CLOSE_FD (evpipe [0]); 2653 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1858 EV_WIN32_CLOSE_FD (evpipe [1]); 2654 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1859 }
1860 } 2655 }
1861 2656
1862#if EV_USE_SIGNALFD 2657#if EV_USE_SIGNALFD
1863 if (ev_is_active (&sigfd_w)) 2658 if (ev_is_active (&sigfd_w))
1864 close (sigfd); 2659 close (sigfd);
… …
1950#endif 2745#endif
1951#if EV_USE_INOTIFY 2746#if EV_USE_INOTIFY
1952 infy_fork (EV_A); 2747 infy_fork (EV_A);
1953#endif 2748#endif
1954 2749
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1955 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
1956 { 2752 {
1957 /* this "locks" the handlers against writing to the pipe */ 2753 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1958 /* while we modify the fd vars */
1959 sig_pending = 1;
1960#if EV_ASYNC_ENABLE
1961 async_pending = 1;
1962#endif
1963 2754
1964 ev_ref (EV_A); 2755 ev_ref (EV_A);
1965 ev_io_stop (EV_A_ &pipe_w); 2756 ev_io_stop (EV_A_ &pipe_w);
1966 2757
1967#if EV_USE_EVENTFD
1968 if (evfd >= 0)
1969 close (evfd);
1970#endif
1971
1972 if (evpipe [0] >= 0) 2758 if (evpipe [0] >= 0)
1973 {
1974 EV_WIN32_CLOSE_FD (evpipe [0]); 2759 EV_WIN32_CLOSE_FD (evpipe [0]);
1975 EV_WIN32_CLOSE_FD (evpipe [1]);
1976 }
1977 2760
1978#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1979 evpipe_init (EV_A); 2761 evpipe_init (EV_A);
1980 /* now iterate over everything, in case we missed something */ 2762 /* iterate over everything, in case we missed something before */
1981 pipecb (EV_A_ &pipe_w, EV_READ); 2763 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1982#endif
1983 } 2764 }
2765#endif
1984 2766
1985 postfork = 0; 2767 postfork = 0;
1986} 2768}
1987 2769
1988#if EV_MULTIPLICITY 2770#if EV_MULTIPLICITY
1989 2771
1990struct ev_loop * 2772struct ev_loop * ecb_cold
1991ev_loop_new (unsigned int flags) 2773ev_loop_new (unsigned int flags) EV_THROW
1992{ 2774{
1993 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1994 2776
1995 memset (EV_A, 0, sizeof (struct ev_loop)); 2777 memset (EV_A, 0, sizeof (struct ev_loop));
1996 loop_init (EV_A_ flags); 2778 loop_init (EV_A_ flags);
… …
2003} 2785}
2004 2786
2005#endif /* multiplicity */ 2787#endif /* multiplicity */
2006 2788
2007#if EV_VERIFY 2789#if EV_VERIFY
2008static void noinline 2790static void noinline ecb_cold
2009verify_watcher (EV_P_ W w) 2791verify_watcher (EV_P_ W w)
2010{ 2792{
2011 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2793 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2012 2794
2013 if (w->pending) 2795 if (w->pending)
2014 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2796 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2015} 2797}
2016 2798
2017static void noinline 2799static void noinline ecb_cold
2018verify_heap (EV_P_ ANHE *heap, int N) 2800verify_heap (EV_P_ ANHE *heap, int N)
2019{ 2801{
2020 int i; 2802 int i;
2021 2803
2022 for (i = HEAP0; i < N + HEAP0; ++i) 2804 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2027 2809
2028 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2810 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2029 } 2811 }
2030} 2812}
2031 2813
2032static void noinline 2814static void noinline ecb_cold
2033array_verify (EV_P_ W *ws, int cnt) 2815array_verify (EV_P_ W *ws, int cnt)
2034{ 2816{
2035 while (cnt--) 2817 while (cnt--)
2036 { 2818 {
2037 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2819 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2039 } 2821 }
2040} 2822}
2041#endif 2823#endif
2042 2824
2043#if EV_FEATURE_API 2825#if EV_FEATURE_API
2044void 2826void ecb_cold
2045ev_verify (EV_P) 2827ev_verify (EV_P) EV_THROW
2046{ 2828{
2047#if EV_VERIFY 2829#if EV_VERIFY
2048 int i; 2830 int i;
2049 WL w; 2831 WL w, w2;
2050 2832
2051 assert (activecnt >= -1); 2833 assert (activecnt >= -1);
2052 2834
2053 assert (fdchangemax >= fdchangecnt); 2835 assert (fdchangemax >= fdchangecnt);
2054 for (i = 0; i < fdchangecnt; ++i) 2836 for (i = 0; i < fdchangecnt; ++i)
2055 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2837 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2056 2838
2057 assert (anfdmax >= 0); 2839 assert (anfdmax >= 0);
2058 for (i = 0; i < anfdmax; ++i) 2840 for (i = 0; i < anfdmax; ++i)
2841 {
2842 int j = 0;
2843
2059 for (w = anfds [i].head; w; w = w->next) 2844 for (w = w2 = anfds [i].head; w; w = w->next)
2060 { 2845 {
2061 verify_watcher (EV_A_ (W)w); 2846 verify_watcher (EV_A_ (W)w);
2847
2848 if (j++ & 1)
2849 {
2850 assert (("libev: io watcher list contains a loop", w != w2));
2851 w2 = w2->next;
2852 }
2853
2062 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2854 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2063 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2855 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2064 } 2856 }
2857 }
2065 2858
2066 assert (timermax >= timercnt); 2859 assert (timermax >= timercnt);
2067 verify_heap (EV_A_ timers, timercnt); 2860 verify_heap (EV_A_ timers, timercnt);
2068 2861
2069#if EV_PERIODIC_ENABLE 2862#if EV_PERIODIC_ENABLE
… …
2115#endif 2908#endif
2116} 2909}
2117#endif 2910#endif
2118 2911
2119#if EV_MULTIPLICITY 2912#if EV_MULTIPLICITY
2120struct ev_loop * 2913struct ev_loop * ecb_cold
2121#else 2914#else
2122int 2915int
2123#endif 2916#endif
2124ev_default_loop (unsigned int flags) 2917ev_default_loop (unsigned int flags) EV_THROW
2125{ 2918{
2126 if (!ev_default_loop_ptr) 2919 if (!ev_default_loop_ptr)
2127 { 2920 {
2128#if EV_MULTIPLICITY 2921#if EV_MULTIPLICITY
2129 EV_P = ev_default_loop_ptr = &default_loop_struct; 2922 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2148 2941
2149 return ev_default_loop_ptr; 2942 return ev_default_loop_ptr;
2150} 2943}
2151 2944
2152void 2945void
2153ev_loop_fork (EV_P) 2946ev_loop_fork (EV_P) EV_THROW
2154{ 2947{
2155 postfork = 1; /* must be in line with ev_default_fork */ 2948 postfork = 1;
2156} 2949}
2157 2950
2158/*****************************************************************************/ 2951/*****************************************************************************/
2159 2952
2160void 2953void
… …
2162{ 2955{
2163 EV_CB_INVOKE ((W)w, revents); 2956 EV_CB_INVOKE ((W)w, revents);
2164} 2957}
2165 2958
2166unsigned int 2959unsigned int
2167ev_pending_count (EV_P) 2960ev_pending_count (EV_P) EV_THROW
2168{ 2961{
2169 int pri; 2962 int pri;
2170 unsigned int count = 0; 2963 unsigned int count = 0;
2171 2964
2172 for (pri = NUMPRI; pri--; ) 2965 for (pri = NUMPRI; pri--; )
… …
2176} 2969}
2177 2970
2178void noinline 2971void noinline
2179ev_invoke_pending (EV_P) 2972ev_invoke_pending (EV_P)
2180{ 2973{
2181 int pri; 2974 pendingpri = NUMPRI;
2182 2975
2183 for (pri = NUMPRI; pri--; ) 2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2977 {
2978 --pendingpri;
2979
2184 while (pendingcnt [pri]) 2980 while (pendingcnt [pendingpri])
2185 { 2981 {
2186 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2187 2983
2188 p->w->pending = 0; 2984 p->w->pending = 0;
2189 EV_CB_INVOKE (p->w, p->events); 2985 EV_CB_INVOKE (p->w, p->events);
2190 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
2191 } 2987 }
2988 }
2192} 2989}
2193 2990
2194#if EV_IDLE_ENABLE 2991#if EV_IDLE_ENABLE
2195/* make idle watchers pending. this handles the "call-idle */ 2992/* make idle watchers pending. this handles the "call-idle */
2196/* only when higher priorities are idle" logic */ 2993/* only when higher priorities are idle" logic */
… …
2286{ 3083{
2287 EV_FREQUENT_CHECK; 3084 EV_FREQUENT_CHECK;
2288 3085
2289 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3086 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2290 { 3087 {
2291 int feed_count = 0;
2292
2293 do 3088 do
2294 { 3089 {
2295 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3090 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2296 3091
2297 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3092 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2324 } 3119 }
2325} 3120}
2326 3121
2327/* simply recalculate all periodics */ 3122/* simply recalculate all periodics */
2328/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3123/* TODO: maybe ensure that at least one event happens when jumping forward? */
2329static void noinline 3124static void noinline ecb_cold
2330periodics_reschedule (EV_P) 3125periodics_reschedule (EV_P)
2331{ 3126{
2332 int i; 3127 int i;
2333 3128
2334 /* adjust periodics after time jump */ 3129 /* adjust periodics after time jump */
… …
2347 reheap (periodics, periodiccnt); 3142 reheap (periodics, periodiccnt);
2348} 3143}
2349#endif 3144#endif
2350 3145
2351/* adjust all timers by a given offset */ 3146/* adjust all timers by a given offset */
2352static void noinline 3147static void noinline ecb_cold
2353timers_reschedule (EV_P_ ev_tstamp adjust) 3148timers_reschedule (EV_P_ ev_tstamp adjust)
2354{ 3149{
2355 int i; 3150 int i;
2356 3151
2357 for (i = 0; i < timercnt; ++i) 3152 for (i = 0; i < timercnt; ++i)
… …
2431 3226
2432 mn_now = ev_rt_now; 3227 mn_now = ev_rt_now;
2433 } 3228 }
2434} 3229}
2435 3230
2436void 3231int
2437ev_run (EV_P_ int flags) 3232ev_run (EV_P_ int flags)
2438{ 3233{
2439#if EV_FEATURE_API 3234#if EV_FEATURE_API
2440 ++loop_depth; 3235 ++loop_depth;
2441#endif 3236#endif
… …
2499 ev_tstamp prev_mn_now = mn_now; 3294 ev_tstamp prev_mn_now = mn_now;
2500 3295
2501 /* update time to cancel out callback processing overhead */ 3296 /* update time to cancel out callback processing overhead */
2502 time_update (EV_A_ 1e100); 3297 time_update (EV_A_ 1e100);
2503 3298
3299 /* from now on, we want a pipe-wake-up */
3300 pipe_write_wanted = 1;
3301
3302 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3303
2504 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) 3304 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2505 { 3305 {
2506 waittime = MAX_BLOCKTIME; 3306 waittime = MAX_BLOCKTIME;
2507 3307
2508 if (timercnt) 3308 if (timercnt)
2509 { 3309 {
2510 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_mintime; 3310 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2511 if (waittime > to) waittime = to; 3311 if (waittime > to) waittime = to;
2512 } 3312 }
2513 3313
2514#if EV_PERIODIC_ENABLE 3314#if EV_PERIODIC_ENABLE
2515 if (periodiccnt) 3315 if (periodiccnt)
2516 { 3316 {
2517 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_mintime; 3317 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2518 if (waittime > to) waittime = to; 3318 if (waittime > to) waittime = to;
2519 } 3319 }
2520#endif 3320#endif
2521 3321
2522 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3322 /* don't let timeouts decrease the waittime below timeout_blocktime */
2523 if (expect_false (waittime < timeout_blocktime)) 3323 if (expect_false (waittime < timeout_blocktime))
2524 waittime = timeout_blocktime; 3324 waittime = timeout_blocktime;
3325
3326 /* at this point, we NEED to wait, so we have to ensure */
3327 /* to pass a minimum nonzero value to the backend */
3328 if (expect_false (waittime < backend_mintime))
3329 waittime = backend_mintime;
2525 3330
2526 /* extra check because io_blocktime is commonly 0 */ 3331 /* extra check because io_blocktime is commonly 0 */
2527 if (expect_false (io_blocktime)) 3332 if (expect_false (io_blocktime))
2528 { 3333 {
2529 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3334 sleeptime = io_blocktime - (mn_now - prev_mn_now);
… …
2544#endif 3349#endif
2545 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3350 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2546 backend_poll (EV_A_ waittime); 3351 backend_poll (EV_A_ waittime);
2547 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3352 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2548 3353
3354 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3355
3356 ECB_MEMORY_FENCE_ACQUIRE;
3357 if (pipe_write_skipped)
3358 {
3359 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3360 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3361 }
3362
3363
2549 /* update ev_rt_now, do magic */ 3364 /* update ev_rt_now, do magic */
2550 time_update (EV_A_ waittime + sleeptime); 3365 time_update (EV_A_ waittime + sleeptime);
2551 } 3366 }
2552 3367
2553 /* queue pending timers and reschedule them */ 3368 /* queue pending timers and reschedule them */
… …
2579 loop_done = EVBREAK_CANCEL; 3394 loop_done = EVBREAK_CANCEL;
2580 3395
2581#if EV_FEATURE_API 3396#if EV_FEATURE_API
2582 --loop_depth; 3397 --loop_depth;
2583#endif 3398#endif
3399
3400 return activecnt;
2584} 3401}
2585 3402
2586void 3403void
2587ev_break (EV_P_ int how) 3404ev_break (EV_P_ int how) EV_THROW
2588{ 3405{
2589 loop_done = how; 3406 loop_done = how;
2590} 3407}
2591 3408
2592void 3409void
2593ev_ref (EV_P) 3410ev_ref (EV_P) EV_THROW
2594{ 3411{
2595 ++activecnt; 3412 ++activecnt;
2596} 3413}
2597 3414
2598void 3415void
2599ev_unref (EV_P) 3416ev_unref (EV_P) EV_THROW
2600{ 3417{
2601 --activecnt; 3418 --activecnt;
2602} 3419}
2603 3420
2604void 3421void
2605ev_now_update (EV_P) 3422ev_now_update (EV_P) EV_THROW
2606{ 3423{
2607 time_update (EV_A_ 1e100); 3424 time_update (EV_A_ 1e100);
2608} 3425}
2609 3426
2610void 3427void
2611ev_suspend (EV_P) 3428ev_suspend (EV_P) EV_THROW
2612{ 3429{
2613 ev_now_update (EV_A); 3430 ev_now_update (EV_A);
2614} 3431}
2615 3432
2616void 3433void
2617ev_resume (EV_P) 3434ev_resume (EV_P) EV_THROW
2618{ 3435{
2619 ev_tstamp mn_prev = mn_now; 3436 ev_tstamp mn_prev = mn_now;
2620 3437
2621 ev_now_update (EV_A); 3438 ev_now_update (EV_A);
2622 timers_reschedule (EV_A_ mn_now - mn_prev); 3439 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2661 w->pending = 0; 3478 w->pending = 0;
2662 } 3479 }
2663} 3480}
2664 3481
2665int 3482int
2666ev_clear_pending (EV_P_ void *w) 3483ev_clear_pending (EV_P_ void *w) EV_THROW
2667{ 3484{
2668 W w_ = (W)w; 3485 W w_ = (W)w;
2669 int pending = w_->pending; 3486 int pending = w_->pending;
2670 3487
2671 if (expect_true (pending)) 3488 if (expect_true (pending))
… …
2704} 3521}
2705 3522
2706/*****************************************************************************/ 3523/*****************************************************************************/
2707 3524
2708void noinline 3525void noinline
2709ev_io_start (EV_P_ ev_io *w) 3526ev_io_start (EV_P_ ev_io *w) EV_THROW
2710{ 3527{
2711 int fd = w->fd; 3528 int fd = w->fd;
2712 3529
2713 if (expect_false (ev_is_active (w))) 3530 if (expect_false (ev_is_active (w)))
2714 return; 3531 return;
… …
2720 3537
2721 ev_start (EV_A_ (W)w, 1); 3538 ev_start (EV_A_ (W)w, 1);
2722 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2723 wlist_add (&anfds[fd].head, (WL)w); 3540 wlist_add (&anfds[fd].head, (WL)w);
2724 3541
3542 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544
2725 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3545 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2726 w->events &= ~EV__IOFDSET; 3546 w->events &= ~EV__IOFDSET;
2727 3547
2728 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
2729} 3549}
2730 3550
2731void noinline 3551void noinline
2732ev_io_stop (EV_P_ ev_io *w) 3552ev_io_stop (EV_P_ ev_io *w) EV_THROW
2733{ 3553{
2734 clear_pending (EV_A_ (W)w); 3554 clear_pending (EV_A_ (W)w);
2735 if (expect_false (!ev_is_active (w))) 3555 if (expect_false (!ev_is_active (w)))
2736 return; 3556 return;
2737 3557
… …
2746 3566
2747 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
2748} 3568}
2749 3569
2750void noinline 3570void noinline
2751ev_timer_start (EV_P_ ev_timer *w) 3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2752{ 3572{
2753 if (expect_false (ev_is_active (w))) 3573 if (expect_false (ev_is_active (w)))
2754 return; 3574 return;
2755 3575
2756 ev_at (w) += mn_now; 3576 ev_at (w) += mn_now;
… …
2770 3590
2771 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3591 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2772} 3592}
2773 3593
2774void noinline 3594void noinline
2775ev_timer_stop (EV_P_ ev_timer *w) 3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2776{ 3596{
2777 clear_pending (EV_A_ (W)w); 3597 clear_pending (EV_A_ (W)w);
2778 if (expect_false (!ev_is_active (w))) 3598 if (expect_false (!ev_is_active (w)))
2779 return; 3599 return;
2780 3600
… …
2800 3620
2801 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
2802} 3622}
2803 3623
2804void noinline 3624void noinline
2805ev_timer_again (EV_P_ ev_timer *w) 3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2806{ 3626{
2807 EV_FREQUENT_CHECK; 3627 EV_FREQUENT_CHECK;
3628
3629 clear_pending (EV_A_ (W)w);
2808 3630
2809 if (ev_is_active (w)) 3631 if (ev_is_active (w))
2810 { 3632 {
2811 if (w->repeat) 3633 if (w->repeat)
2812 { 3634 {
… …
2825 3647
2826 EV_FREQUENT_CHECK; 3648 EV_FREQUENT_CHECK;
2827} 3649}
2828 3650
2829ev_tstamp 3651ev_tstamp
2830ev_timer_remaining (EV_P_ ev_timer *w) 3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2831{ 3653{
2832 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2833} 3655}
2834 3656
2835#if EV_PERIODIC_ENABLE 3657#if EV_PERIODIC_ENABLE
2836void noinline 3658void noinline
2837ev_periodic_start (EV_P_ ev_periodic *w) 3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2838{ 3660{
2839 if (expect_false (ev_is_active (w))) 3661 if (expect_false (ev_is_active (w)))
2840 return; 3662 return;
2841 3663
2842 if (w->reschedule_cb) 3664 if (w->reschedule_cb)
… …
2862 3684
2863 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3685 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2864} 3686}
2865 3687
2866void noinline 3688void noinline
2867ev_periodic_stop (EV_P_ ev_periodic *w) 3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2868{ 3690{
2869 clear_pending (EV_A_ (W)w); 3691 clear_pending (EV_A_ (W)w);
2870 if (expect_false (!ev_is_active (w))) 3692 if (expect_false (!ev_is_active (w)))
2871 return; 3693 return;
2872 3694
… …
2890 3712
2891 EV_FREQUENT_CHECK; 3713 EV_FREQUENT_CHECK;
2892} 3714}
2893 3715
2894void noinline 3716void noinline
2895ev_periodic_again (EV_P_ ev_periodic *w) 3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2896{ 3718{
2897 /* TODO: use adjustheap and recalculation */ 3719 /* TODO: use adjustheap and recalculation */
2898 ev_periodic_stop (EV_A_ w); 3720 ev_periodic_stop (EV_A_ w);
2899 ev_periodic_start (EV_A_ w); 3721 ev_periodic_start (EV_A_ w);
2900} 3722}
… …
2905#endif 3727#endif
2906 3728
2907#if EV_SIGNAL_ENABLE 3729#if EV_SIGNAL_ENABLE
2908 3730
2909void noinline 3731void noinline
2910ev_signal_start (EV_P_ ev_signal *w) 3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2911{ 3733{
2912 if (expect_false (ev_is_active (w))) 3734 if (expect_false (ev_is_active (w)))
2913 return; 3735 return;
2914 3736
2915 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3737 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2917#if EV_MULTIPLICITY 3739#if EV_MULTIPLICITY
2918 assert (("libev: a signal must not be attached to two different loops", 3740 assert (("libev: a signal must not be attached to two different loops",
2919 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3741 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2920 3742
2921 signals [w->signum - 1].loop = EV_A; 3743 signals [w->signum - 1].loop = EV_A;
3744 ECB_MEMORY_FENCE_RELEASE;
2922#endif 3745#endif
2923 3746
2924 EV_FREQUENT_CHECK; 3747 EV_FREQUENT_CHECK;
2925 3748
2926#if EV_USE_SIGNALFD 3749#if EV_USE_SIGNALFD
… …
2986 3809
2987 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
2988} 3811}
2989 3812
2990void noinline 3813void noinline
2991ev_signal_stop (EV_P_ ev_signal *w) 3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2992{ 3815{
2993 clear_pending (EV_A_ (W)w); 3816 clear_pending (EV_A_ (W)w);
2994 if (expect_false (!ev_is_active (w))) 3817 if (expect_false (!ev_is_active (w)))
2995 return; 3818 return;
2996 3819
… …
3027#endif 3850#endif
3028 3851
3029#if EV_CHILD_ENABLE 3852#if EV_CHILD_ENABLE
3030 3853
3031void 3854void
3032ev_child_start (EV_P_ ev_child *w) 3855ev_child_start (EV_P_ ev_child *w) EV_THROW
3033{ 3856{
3034#if EV_MULTIPLICITY 3857#if EV_MULTIPLICITY
3035 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3858 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3036#endif 3859#endif
3037 if (expect_false (ev_is_active (w))) 3860 if (expect_false (ev_is_active (w)))
… …
3044 3867
3045 EV_FREQUENT_CHECK; 3868 EV_FREQUENT_CHECK;
3046} 3869}
3047 3870
3048void 3871void
3049ev_child_stop (EV_P_ ev_child *w) 3872ev_child_stop (EV_P_ ev_child *w) EV_THROW
3050{ 3873{
3051 clear_pending (EV_A_ (W)w); 3874 clear_pending (EV_A_ (W)w);
3052 if (expect_false (!ev_is_active (w))) 3875 if (expect_false (!ev_is_active (w)))
3053 return; 3876 return;
3054 3877
… …
3081# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3082 3905
3083static void noinline 3906static void noinline
3084infy_add (EV_P_ ev_stat *w) 3907infy_add (EV_P_ ev_stat *w)
3085{ 3908{
3086 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3909 w->wd = inotify_add_watch (fs_fd, w->path,
3910 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3911 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3912 | IN_DONT_FOLLOW | IN_MASK_ADD);
3087 3913
3088 if (w->wd >= 0) 3914 if (w->wd >= 0)
3089 { 3915 {
3090 struct statfs sfs; 3916 struct statfs sfs;
3091 3917
… …
3095 3921
3096 if (!fs_2625) 3922 if (!fs_2625)
3097 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3923 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3098 else if (!statfs (w->path, &sfs) 3924 else if (!statfs (w->path, &sfs)
3099 && (sfs.f_type == 0x1373 /* devfs */ 3925 && (sfs.f_type == 0x1373 /* devfs */
3926 || sfs.f_type == 0x4006 /* fat */
3927 || sfs.f_type == 0x4d44 /* msdos */
3100 || sfs.f_type == 0xEF53 /* ext2/3 */ 3928 || sfs.f_type == 0xEF53 /* ext2/3 */
3929 || sfs.f_type == 0x72b6 /* jffs2 */
3930 || sfs.f_type == 0x858458f6 /* ramfs */
3931 || sfs.f_type == 0x5346544e /* ntfs */
3101 || sfs.f_type == 0x3153464a /* jfs */ 3932 || sfs.f_type == 0x3153464a /* jfs */
3933 || sfs.f_type == 0x9123683e /* btrfs */
3102 || sfs.f_type == 0x52654973 /* reiser3 */ 3934 || sfs.f_type == 0x52654973 /* reiser3 */
3103 || sfs.f_type == 0x01021994 /* tempfs */ 3935 || sfs.f_type == 0x01021994 /* tmpfs */
3104 || sfs.f_type == 0x58465342 /* xfs */)) 3936 || sfs.f_type == 0x58465342 /* xfs */))
3105 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3937 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3106 else 3938 else
3107 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3939 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3108 } 3940 }
… …
3206 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4038 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3207 ofs += sizeof (struct inotify_event) + ev->len; 4039 ofs += sizeof (struct inotify_event) + ev->len;
3208 } 4040 }
3209} 4041}
3210 4042
3211inline_size void 4043inline_size void ecb_cold
3212ev_check_2625 (EV_P) 4044ev_check_2625 (EV_P)
3213{ 4045{
3214 /* kernels < 2.6.25 are borked 4046 /* kernels < 2.6.25 are borked
3215 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4047 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3216 */ 4048 */
… …
3221} 4053}
3222 4054
3223inline_size int 4055inline_size int
3224infy_newfd (void) 4056infy_newfd (void)
3225{ 4057{
3226#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4058#if defined IN_CLOEXEC && defined IN_NONBLOCK
3227 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4059 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3228 if (fd >= 0) 4060 if (fd >= 0)
3229 return fd; 4061 return fd;
3230#endif 4062#endif
3231 return inotify_init (); 4063 return inotify_init ();
… …
3306#else 4138#else
3307# define EV_LSTAT(p,b) lstat (p, b) 4139# define EV_LSTAT(p,b) lstat (p, b)
3308#endif 4140#endif
3309 4141
3310void 4142void
3311ev_stat_stat (EV_P_ ev_stat *w) 4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3312{ 4144{
3313 if (lstat (w->path, &w->attr) < 0) 4145 if (lstat (w->path, &w->attr) < 0)
3314 w->attr.st_nlink = 0; 4146 w->attr.st_nlink = 0;
3315 else if (!w->attr.st_nlink) 4147 else if (!w->attr.st_nlink)
3316 w->attr.st_nlink = 1; 4148 w->attr.st_nlink = 1;
… …
3355 ev_feed_event (EV_A_ w, EV_STAT); 4187 ev_feed_event (EV_A_ w, EV_STAT);
3356 } 4188 }
3357} 4189}
3358 4190
3359void 4191void
3360ev_stat_start (EV_P_ ev_stat *w) 4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3361{ 4193{
3362 if (expect_false (ev_is_active (w))) 4194 if (expect_false (ev_is_active (w)))
3363 return; 4195 return;
3364 4196
3365 ev_stat_stat (EV_A_ w); 4197 ev_stat_stat (EV_A_ w);
… …
3386 4218
3387 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3388} 4220}
3389 4221
3390void 4222void
3391ev_stat_stop (EV_P_ ev_stat *w) 4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3392{ 4224{
3393 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3394 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3395 return; 4227 return;
3396 4228
… …
3412} 4244}
3413#endif 4245#endif
3414 4246
3415#if EV_IDLE_ENABLE 4247#if EV_IDLE_ENABLE
3416void 4248void
3417ev_idle_start (EV_P_ ev_idle *w) 4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3418{ 4250{
3419 if (expect_false (ev_is_active (w))) 4251 if (expect_false (ev_is_active (w)))
3420 return; 4252 return;
3421 4253
3422 pri_adjust (EV_A_ (W)w); 4254 pri_adjust (EV_A_ (W)w);
… …
3435 4267
3436 EV_FREQUENT_CHECK; 4268 EV_FREQUENT_CHECK;
3437} 4269}
3438 4270
3439void 4271void
3440ev_idle_stop (EV_P_ ev_idle *w) 4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3441{ 4273{
3442 clear_pending (EV_A_ (W)w); 4274 clear_pending (EV_A_ (W)w);
3443 if (expect_false (!ev_is_active (w))) 4275 if (expect_false (!ev_is_active (w)))
3444 return; 4276 return;
3445 4277
… …
3459} 4291}
3460#endif 4292#endif
3461 4293
3462#if EV_PREPARE_ENABLE 4294#if EV_PREPARE_ENABLE
3463void 4295void
3464ev_prepare_start (EV_P_ ev_prepare *w) 4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3465{ 4297{
3466 if (expect_false (ev_is_active (w))) 4298 if (expect_false (ev_is_active (w)))
3467 return; 4299 return;
3468 4300
3469 EV_FREQUENT_CHECK; 4301 EV_FREQUENT_CHECK;
… …
3474 4306
3475 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
3476} 4308}
3477 4309
3478void 4310void
3479ev_prepare_stop (EV_P_ ev_prepare *w) 4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3480{ 4312{
3481 clear_pending (EV_A_ (W)w); 4313 clear_pending (EV_A_ (W)w);
3482 if (expect_false (!ev_is_active (w))) 4314 if (expect_false (!ev_is_active (w)))
3483 return; 4315 return;
3484 4316
… …
3497} 4329}
3498#endif 4330#endif
3499 4331
3500#if EV_CHECK_ENABLE 4332#if EV_CHECK_ENABLE
3501void 4333void
3502ev_check_start (EV_P_ ev_check *w) 4334ev_check_start (EV_P_ ev_check *w) EV_THROW
3503{ 4335{
3504 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3505 return; 4337 return;
3506 4338
3507 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
… …
3512 4344
3513 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3514} 4346}
3515 4347
3516void 4348void
3517ev_check_stop (EV_P_ ev_check *w) 4349ev_check_stop (EV_P_ ev_check *w) EV_THROW
3518{ 4350{
3519 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3520 if (expect_false (!ev_is_active (w))) 4352 if (expect_false (!ev_is_active (w)))
3521 return; 4353 return;
3522 4354
… …
3535} 4367}
3536#endif 4368#endif
3537 4369
3538#if EV_EMBED_ENABLE 4370#if EV_EMBED_ENABLE
3539void noinline 4371void noinline
3540ev_embed_sweep (EV_P_ ev_embed *w) 4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3541{ 4373{
3542 ev_run (w->other, EVRUN_NOWAIT); 4374 ev_run (w->other, EVRUN_NOWAIT);
3543} 4375}
3544 4376
3545static void 4377static void
… …
3593 ev_idle_stop (EV_A_ idle); 4425 ev_idle_stop (EV_A_ idle);
3594} 4426}
3595#endif 4427#endif
3596 4428
3597void 4429void
3598ev_embed_start (EV_P_ ev_embed *w) 4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3599{ 4431{
3600 if (expect_false (ev_is_active (w))) 4432 if (expect_false (ev_is_active (w)))
3601 return; 4433 return;
3602 4434
3603 { 4435 {
… …
3624 4456
3625 EV_FREQUENT_CHECK; 4457 EV_FREQUENT_CHECK;
3626} 4458}
3627 4459
3628void 4460void
3629ev_embed_stop (EV_P_ ev_embed *w) 4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3630{ 4462{
3631 clear_pending (EV_A_ (W)w); 4463 clear_pending (EV_A_ (W)w);
3632 if (expect_false (!ev_is_active (w))) 4464 if (expect_false (!ev_is_active (w)))
3633 return; 4465 return;
3634 4466
… …
3644} 4476}
3645#endif 4477#endif
3646 4478
3647#if EV_FORK_ENABLE 4479#if EV_FORK_ENABLE
3648void 4480void
3649ev_fork_start (EV_P_ ev_fork *w) 4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3650{ 4482{
3651 if (expect_false (ev_is_active (w))) 4483 if (expect_false (ev_is_active (w)))
3652 return; 4484 return;
3653 4485
3654 EV_FREQUENT_CHECK; 4486 EV_FREQUENT_CHECK;
… …
3659 4491
3660 EV_FREQUENT_CHECK; 4492 EV_FREQUENT_CHECK;
3661} 4493}
3662 4494
3663void 4495void
3664ev_fork_stop (EV_P_ ev_fork *w) 4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3665{ 4497{
3666 clear_pending (EV_A_ (W)w); 4498 clear_pending (EV_A_ (W)w);
3667 if (expect_false (!ev_is_active (w))) 4499 if (expect_false (!ev_is_active (w)))
3668 return; 4500 return;
3669 4501
… …
3682} 4514}
3683#endif 4515#endif
3684 4516
3685#if EV_CLEANUP_ENABLE 4517#if EV_CLEANUP_ENABLE
3686void 4518void
3687ev_cleanup_start (EV_P_ ev_cleanup *w) 4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3688{ 4520{
3689 if (expect_false (ev_is_active (w))) 4521 if (expect_false (ev_is_active (w)))
3690 return; 4522 return;
3691 4523
3692 EV_FREQUENT_CHECK; 4524 EV_FREQUENT_CHECK;
… …
3699 ev_unref (EV_A); 4531 ev_unref (EV_A);
3700 EV_FREQUENT_CHECK; 4532 EV_FREQUENT_CHECK;
3701} 4533}
3702 4534
3703void 4535void
3704ev_cleanup_stop (EV_P_ ev_cleanup *w) 4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3705{ 4537{
3706 clear_pending (EV_A_ (W)w); 4538 clear_pending (EV_A_ (W)w);
3707 if (expect_false (!ev_is_active (w))) 4539 if (expect_false (!ev_is_active (w)))
3708 return; 4540 return;
3709 4541
… …
3723} 4555}
3724#endif 4556#endif
3725 4557
3726#if EV_ASYNC_ENABLE 4558#if EV_ASYNC_ENABLE
3727void 4559void
3728ev_async_start (EV_P_ ev_async *w) 4560ev_async_start (EV_P_ ev_async *w) EV_THROW
3729{ 4561{
3730 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
3731 return; 4563 return;
3732 4564
3733 w->sent = 0; 4565 w->sent = 0;
… …
3742 4574
3743 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
3744} 4576}
3745 4577
3746void 4578void
3747ev_async_stop (EV_P_ ev_async *w) 4579ev_async_stop (EV_P_ ev_async *w) EV_THROW
3748{ 4580{
3749 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
3750 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
3751 return; 4583 return;
3752 4584
… …
3763 4595
3764 EV_FREQUENT_CHECK; 4596 EV_FREQUENT_CHECK;
3765} 4597}
3766 4598
3767void 4599void
3768ev_async_send (EV_P_ ev_async *w) 4600ev_async_send (EV_P_ ev_async *w) EV_THROW
3769{ 4601{
3770 w->sent = 1; 4602 w->sent = 1;
3771 evpipe_write (EV_A_ &async_pending); 4603 evpipe_write (EV_A_ &async_pending);
3772} 4604}
3773#endif 4605#endif
… …
3810 4642
3811 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4643 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3812} 4644}
3813 4645
3814void 4646void
3815ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4647ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3816{ 4648{
3817 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4649 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3818 4650
3819 if (expect_false (!once)) 4651 if (expect_false (!once))
3820 { 4652 {
… …
3841} 4673}
3842 4674
3843/*****************************************************************************/ 4675/*****************************************************************************/
3844 4676
3845#if EV_WALK_ENABLE 4677#if EV_WALK_ENABLE
3846void 4678void ecb_cold
3847ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4679ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3848{ 4680{
3849 int i, j; 4681 int i, j;
3850 ev_watcher_list *wl, *wn; 4682 ev_watcher_list *wl, *wn;
3851 4683
3852 if (types & (EV_IO | EV_EMBED)) 4684 if (types & (EV_IO | EV_EMBED))
… …
3895 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4727 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3896#endif 4728#endif
3897 4729
3898#if EV_IDLE_ENABLE 4730#if EV_IDLE_ENABLE
3899 if (types & EV_IDLE) 4731 if (types & EV_IDLE)
3900 for (j = NUMPRI; i--; ) 4732 for (j = NUMPRI; j--; )
3901 for (i = idlecnt [j]; i--; ) 4733 for (i = idlecnt [j]; i--; )
3902 cb (EV_A_ EV_IDLE, idles [j][i]); 4734 cb (EV_A_ EV_IDLE, idles [j][i]);
3903#endif 4735#endif
3904 4736
3905#if EV_FORK_ENABLE 4737#if EV_FORK_ENABLE
… …
3958 4790
3959#if EV_MULTIPLICITY 4791#if EV_MULTIPLICITY
3960 #include "ev_wrap.h" 4792 #include "ev_wrap.h"
3961#endif 4793#endif
3962 4794
3963EV_CPP(})
3964

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