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Comparing libev/ev.c (file contents):
Revision 1.396 by root, Wed Aug 24 16:13:17 2011 UTC vs.
Revision 1.450 by root, Mon Oct 8 15:43:35 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
237/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
… …
250# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
251# endif 261# endif
252#endif 262#endif
253 263
254#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 267# else
258# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
259# endif 269# endif
260#endif 270#endif
… …
350#endif 360#endif
351 361
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 365# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
360# else 370# else
… …
386# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
387#endif 397#endif
388 398
389#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 401# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 402# include <sys/select.h>
393# endif 403# endif
394#endif 404#endif
395 405
396#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
403# endif 413# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 414#endif
409 415
410#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 418# include <stdint.h>
… …
469/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ECB.H BEGIN */ 476/* ECB.H BEGIN */
471/* 477/*
472 * libecb - http://software.schmorp.de/pkg/libecb 478 * libecb - http://software.schmorp.de/pkg/libecb
473 * 479 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta 481 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved. 482 * All rights reserved.
477 * 483 *
478 * Redistribution and use in source and binary forms, with or without modifica- 484 * Redistribution and use in source and binary forms, with or without modifica-
479 * tion, are permitted provided that the following conditions are met: 485 * tion, are permitted provided that the following conditions are met:
… …
498 */ 504 */
499 505
500#ifndef ECB_H 506#ifndef ECB_H
501#define ECB_H 507#define ECB_H
502 508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010002
511
503#ifdef _WIN32 512#ifdef _WIN32
504 typedef signed char int8_t; 513 typedef signed char int8_t;
505 typedef unsigned char uint8_t; 514 typedef unsigned char uint8_t;
506 typedef signed short int16_t; 515 typedef signed short int16_t;
507 typedef unsigned short uint16_t; 516 typedef unsigned short uint16_t;
… …
512 typedef unsigned long long uint64_t; 521 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */ 522 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t; 523 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t; 524 typedef unsigned __int64 uint64_t;
516 #endif 525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
517#else 535#else
518 #include <inttypes.h> 536 #include <inttypes.h>
537 #if UINTMAX_MAX > 0xffffffffU
538 #define ECB_PTRSIZE 8
539 #else
540 #define ECB_PTRSIZE 4
541 #endif
519#endif 542#endif
520 543
521/* many compilers define _GNUC_ to some versions but then only implement 544/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions, 545 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers. 546 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so. 547 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 548 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place. 549 * an issue with that they should have done it right in the first place.
527 */ 550 */
528#ifndef ECB_GCC_VERSION 551#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 552 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 553 #define ECB_GCC_VERSION(major,minor) 0
531 #else 554 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 555 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 556 #endif
534#endif 557#endif
535 558
559#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
560#define ECB_C99 (__STDC_VERSION__ >= 199901L)
561#define ECB_C11 (__STDC_VERSION__ >= 201112L)
562#define ECB_CPP (__cplusplus+0)
563#define ECB_CPP11 (__cplusplus >= 201103L)
564
565#if ECB_CPP
566 #define ECB_EXTERN_C extern "C"
567 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
568 #define ECB_EXTERN_C_END }
569#else
570 #define ECB_EXTERN_C extern
571 #define ECB_EXTERN_C_BEG
572 #define ECB_EXTERN_C_END
573#endif
574
536/*****************************************************************************/ 575/*****************************************************************************/
537 576
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 577/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 578/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 579
541#if ECB_NO_THREADS || ECB_NO_SMP 580#if ECB_NO_THREADS
581 #define ECB_NO_SMP 1
582#endif
583
584#if ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 585 #define ECB_MEMORY_FENCE do { } while (0)
543#endif 586#endif
544 587
545#ifndef ECB_MEMORY_FENCE 588#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 589 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 590 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 592 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 593 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 594 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 595 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 596 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 597 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 598 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 600 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 601 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 603 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 604 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
606 #elif __sparc || __sparc__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610 #elif defined __s390__ || defined __s390x__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612 #elif defined __mips__
613 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
614 #elif defined __alpha__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616 #elif defined __hppa__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
619 #elif defined __ia64__
620 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
563 #endif 621 #endif
564 #endif 622 #endif
565#endif 623#endif
566 624
567#ifndef ECB_MEMORY_FENCE 625#ifndef ECB_MEMORY_FENCE
626 #if ECB_GCC_VERSION(4,7)
627 /* see comment below (stdatomic.h) about the C11 memory model. */
628 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
629
630 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
631 * without risking compile time errors with other compilers. We *could*
632 * define our own ecb_clang_has_feature, but I just can't be bothered to work
633 * around this shit time and again.
634 * #elif defined __clang && __has_feature (cxx_atomic)
635 * // see comment below (stdatomic.h) about the C11 memory model.
636 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
637 */
638
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 639 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 640 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 641 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 642 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 643 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 644 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 645 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 646 #elif defined _WIN32
578 #include <WinNT.h> 647 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 648 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
649 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
650 #include <mbarrier.h>
651 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
652 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
653 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
654 #elif __xlC__
655 #define ECB_MEMORY_FENCE __sync ()
656 #endif
657#endif
658
659#ifndef ECB_MEMORY_FENCE
660 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
661 /* we assume that these memory fences work on all variables/all memory accesses, */
662 /* not just C11 atomics and atomic accesses */
663 #include <stdatomic.h>
664 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
665 /* any fence other than seq_cst, which isn't very efficient for us. */
666 /* Why that is, we don't know - either the C11 memory model is quite useless */
667 /* for most usages, or gcc and clang have a bug */
668 /* I *currently* lean towards the latter, and inefficiently implement */
669 /* all three of ecb's fences as a seq_cst fence */
670 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 671 #endif
581#endif 672#endif
582 673
583#ifndef ECB_MEMORY_FENCE 674#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 675 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 687 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 688 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 689 #endif
599#endif 690#endif
600 691
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 692#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 693 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 694#endif
604 695
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 696#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 697 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 698#endif
608 699
609/*****************************************************************************/ 700/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 701
613#if __cplusplus 702#if __cplusplus
614 #define ecb_inline static inline 703 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 704#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 705 #define ecb_inline static __inline__
… …
655#elif ECB_GCC_VERSION(3,0) 744#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 745 #define ecb_decltype(x) __typeof(x)
657#endif 746#endif
658 747
659#define ecb_noinline ecb_attribute ((__noinline__)) 748#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 749#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 750#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 751#define ecb_pure ecb_attribute ((__pure__))
752
753#if ECB_C11
754 #define ecb_noreturn _Noreturn
755#else
756 #define ecb_noreturn ecb_attribute ((__noreturn__))
757#endif
664 758
665#if ECB_GCC_VERSION(4,3) 759#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 760 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 761 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 762 #define ecb_cold ecb_attribute ((__cold__))
… …
759 853
760 return r + ecb_ld32 (x); 854 return r + ecb_ld32 (x);
761 } 855 }
762#endif 856#endif
763 857
858ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
859ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
860ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
861ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
862
863ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
864ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
865{
866 return ( (x * 0x0802U & 0x22110U)
867 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
868}
869
870ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
871ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
872{
873 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
874 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
875 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
876 x = ( x >> 8 ) | ( x << 8);
877
878 return x;
879}
880
881ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
882ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
883{
884 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
885 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
886 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
887 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
888 x = ( x >> 16 ) | ( x << 16);
889
890 return x;
891}
892
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 893/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 894/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 895ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 896ecb_function_ int
768ecb_popcount64 (uint64_t x) 897ecb_popcount64 (uint64_t x)
… …
817 946
818#if ECB_GCC_VERSION(4,5) 947#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 948 #define ecb_unreachable() __builtin_unreachable ()
820#else 949#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 950 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 951 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 952 ecb_inline void ecb_unreachable (void) { }
824#endif 953#endif
825 954
826/* try to tell the compiler that some condition is definitely true */ 955/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 956#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828 957
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 958ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 959ecb_inline unsigned char
831ecb_byteorder_helper (void) 960ecb_byteorder_helper (void)
832{ 961{
833 const uint32_t u = 0x11223344; 962 /* the union code still generates code under pressure in gcc, */
834 return *(unsigned char *)&u; 963 /* but less than using pointers, and always seems to */
964 /* successfully return a constant. */
965 /* the reason why we have this horrible preprocessor mess */
966 /* is to avoid it in all cases, at least on common architectures */
967 /* or when using a recent enough gcc version (>= 4.6) */
968#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
969 return 0x44;
970#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
971 return 0x44;
972#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
973 return 0x11;
974#else
975 union
976 {
977 uint32_t i;
978 uint8_t c;
979 } u = { 0x11223344 };
980 return u.c;
981#endif
835} 982}
836 983
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 984ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 985ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 986ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 987ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 988
842#if ECB_GCC_VERSION(3,0) || ECB_C99 989#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 990 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 991#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 992 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
993#endif
994
995#if __cplusplus
996 template<typename T>
997 static inline T ecb_div_rd (T val, T div)
998 {
999 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1000 }
1001 template<typename T>
1002 static inline T ecb_div_ru (T val, T div)
1003 {
1004 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1005 }
1006#else
1007 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1008 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 1009#endif
847 1010
848#if ecb_cplusplus_does_not_suck 1011#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1012 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N> 1013 template<typename T, int N>
… …
854 } 1017 }
855#else 1018#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1019 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif 1020#endif
858 1021
1022/*******************************************************************************/
1023/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1024
1025/* basically, everything uses "ieee pure-endian" floating point numbers */
1026/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1027#if 0 \
1028 || __i386 || __i386__ \
1029 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1030 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1031 || defined __arm__ && defined __ARM_EABI__ \
1032 || defined __s390__ || defined __s390x__ \
1033 || defined __mips__ \
1034 || defined __alpha__ \
1035 || defined __hppa__ \
1036 || defined __ia64__ \
1037 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1038 #define ECB_STDFP 1
1039 #include <string.h> /* for memcpy */
1040#else
1041 #define ECB_STDFP 0
1042 #include <math.h> /* for frexp*, ldexp* */
1043#endif
1044
1045#ifndef ECB_NO_LIBM
1046
1047 /* convert a float to ieee single/binary32 */
1048 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1049 ecb_function_ uint32_t
1050 ecb_float_to_binary32 (float x)
1051 {
1052 uint32_t r;
1053
1054 #if ECB_STDFP
1055 memcpy (&r, &x, 4);
1056 #else
1057 /* slow emulation, works for anything but -0 */
1058 uint32_t m;
1059 int e;
1060
1061 if (x == 0e0f ) return 0x00000000U;
1062 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1063 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1064 if (x != x ) return 0x7fbfffffU;
1065
1066 m = frexpf (x, &e) * 0x1000000U;
1067
1068 r = m & 0x80000000U;
1069
1070 if (r)
1071 m = -m;
1072
1073 if (e <= -126)
1074 {
1075 m &= 0xffffffU;
1076 m >>= (-125 - e);
1077 e = -126;
1078 }
1079
1080 r |= (e + 126) << 23;
1081 r |= m & 0x7fffffU;
1082 #endif
1083
1084 return r;
1085 }
1086
1087 /* converts an ieee single/binary32 to a float */
1088 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1089 ecb_function_ float
1090 ecb_binary32_to_float (uint32_t x)
1091 {
1092 float r;
1093
1094 #if ECB_STDFP
1095 memcpy (&r, &x, 4);
1096 #else
1097 /* emulation, only works for normals and subnormals and +0 */
1098 int neg = x >> 31;
1099 int e = (x >> 23) & 0xffU;
1100
1101 x &= 0x7fffffU;
1102
1103 if (e)
1104 x |= 0x800000U;
1105 else
1106 e = 1;
1107
1108 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1109 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1110
1111 r = neg ? -r : r;
1112 #endif
1113
1114 return r;
1115 }
1116
1117 /* convert a double to ieee double/binary64 */
1118 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1119 ecb_function_ uint64_t
1120 ecb_double_to_binary64 (double x)
1121 {
1122 uint64_t r;
1123
1124 #if ECB_STDFP
1125 memcpy (&r, &x, 8);
1126 #else
1127 /* slow emulation, works for anything but -0 */
1128 uint64_t m;
1129 int e;
1130
1131 if (x == 0e0 ) return 0x0000000000000000U;
1132 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1133 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1134 if (x != x ) return 0X7ff7ffffffffffffU;
1135
1136 m = frexp (x, &e) * 0x20000000000000U;
1137
1138 r = m & 0x8000000000000000;;
1139
1140 if (r)
1141 m = -m;
1142
1143 if (e <= -1022)
1144 {
1145 m &= 0x1fffffffffffffU;
1146 m >>= (-1021 - e);
1147 e = -1022;
1148 }
1149
1150 r |= ((uint64_t)(e + 1022)) << 52;
1151 r |= m & 0xfffffffffffffU;
1152 #endif
1153
1154 return r;
1155 }
1156
1157 /* converts an ieee double/binary64 to a double */
1158 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1159 ecb_function_ double
1160 ecb_binary64_to_double (uint64_t x)
1161 {
1162 double r;
1163
1164 #if ECB_STDFP
1165 memcpy (&r, &x, 8);
1166 #else
1167 /* emulation, only works for normals and subnormals and +0 */
1168 int neg = x >> 63;
1169 int e = (x >> 52) & 0x7ffU;
1170
1171 x &= 0xfffffffffffffU;
1172
1173 if (e)
1174 x |= 0x10000000000000U;
1175 else
1176 e = 1;
1177
1178 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1179 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1180
1181 r = neg ? -r : r;
1182 #endif
1183
1184 return r;
1185 }
1186
1187#endif
1188
859#endif 1189#endif
860 1190
861/* ECB.H END */ 1191/* ECB.H END */
862 1192
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1193#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864/* if your architetcure doesn't need memory fences, e.g. because it is 1194/* if your architecture doesn't need memory fences, e.g. because it is
865 * single-cpu/core, or if you use libev in a project that doesn't use libev 1195 * single-cpu/core, or if you use libev in a project that doesn't use libev
866 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1196 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
867 * libev, in which casess the memory fences become nops. 1197 * libev, in which cases the memory fences become nops.
868 * alternatively, you can remove this #error and link against libpthread, 1198 * alternatively, you can remove this #error and link against libpthread,
869 * which will then provide the memory fences. 1199 * which will then provide the memory fences.
870 */ 1200 */
871# error "memory fences not defined for your architecture, please report" 1201# error "memory fences not defined for your architecture, please report"
872#endif 1202#endif
… …
1029{ 1359{
1030 write (STDERR_FILENO, msg, strlen (msg)); 1360 write (STDERR_FILENO, msg, strlen (msg));
1031} 1361}
1032#endif 1362#endif
1033 1363
1034static void (*syserr_cb)(const char *msg); 1364static void (*syserr_cb)(const char *msg) EV_THROW;
1035 1365
1036void ecb_cold 1366void ecb_cold
1037ev_set_syserr_cb (void (*cb)(const char *msg)) 1367ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1038{ 1368{
1039 syserr_cb = cb; 1369 syserr_cb = cb;
1040} 1370}
1041 1371
1042static void noinline ecb_cold 1372static void noinline ecb_cold
… …
1060 abort (); 1390 abort ();
1061 } 1391 }
1062} 1392}
1063 1393
1064static void * 1394static void *
1065ev_realloc_emul (void *ptr, long size) 1395ev_realloc_emul (void *ptr, long size) EV_THROW
1066{ 1396{
1067#if __GLIBC__
1068 return realloc (ptr, size);
1069#else
1070 /* some systems, notably openbsd and darwin, fail to properly 1397 /* some systems, notably openbsd and darwin, fail to properly
1071 * implement realloc (x, 0) (as required by both ansi c-89 and 1398 * implement realloc (x, 0) (as required by both ansi c-89 and
1072 * the single unix specification, so work around them here. 1399 * the single unix specification, so work around them here.
1400 * recently, also (at least) fedora and debian started breaking it,
1401 * despite documenting it otherwise.
1073 */ 1402 */
1074 1403
1075 if (size) 1404 if (size)
1076 return realloc (ptr, size); 1405 return realloc (ptr, size);
1077 1406
1078 free (ptr); 1407 free (ptr);
1079 return 0; 1408 return 0;
1080#endif
1081} 1409}
1082 1410
1083static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1411static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1084 1412
1085void ecb_cold 1413void ecb_cold
1086ev_set_allocator (void *(*cb)(void *ptr, long size)) 1414ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1087{ 1415{
1088 alloc = cb; 1416 alloc = cb;
1089} 1417}
1090 1418
1091inline_speed void * 1419inline_speed void *
… …
1179 #undef VAR 1507 #undef VAR
1180 }; 1508 };
1181 #include "ev_wrap.h" 1509 #include "ev_wrap.h"
1182 1510
1183 static struct ev_loop default_loop_struct; 1511 static struct ev_loop default_loop_struct;
1184 struct ev_loop *ev_default_loop_ptr; 1512 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1185 1513
1186#else 1514#else
1187 1515
1188 ev_tstamp ev_rt_now; 1516 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1189 #define VAR(name,decl) static decl; 1517 #define VAR(name,decl) static decl;
1190 #include "ev_vars.h" 1518 #include "ev_vars.h"
1191 #undef VAR 1519 #undef VAR
1192 1520
1193 static int ev_default_loop_ptr; 1521 static int ev_default_loop_ptr;
… …
1208 1536
1209/*****************************************************************************/ 1537/*****************************************************************************/
1210 1538
1211#ifndef EV_HAVE_EV_TIME 1539#ifndef EV_HAVE_EV_TIME
1212ev_tstamp 1540ev_tstamp
1213ev_time (void) 1541ev_time (void) EV_THROW
1214{ 1542{
1215#if EV_USE_REALTIME 1543#if EV_USE_REALTIME
1216 if (expect_true (have_realtime)) 1544 if (expect_true (have_realtime))
1217 { 1545 {
1218 struct timespec ts; 1546 struct timespec ts;
… …
1242 return ev_time (); 1570 return ev_time ();
1243} 1571}
1244 1572
1245#if EV_MULTIPLICITY 1573#if EV_MULTIPLICITY
1246ev_tstamp 1574ev_tstamp
1247ev_now (EV_P) 1575ev_now (EV_P) EV_THROW
1248{ 1576{
1249 return ev_rt_now; 1577 return ev_rt_now;
1250} 1578}
1251#endif 1579#endif
1252 1580
1253void 1581void
1254ev_sleep (ev_tstamp delay) 1582ev_sleep (ev_tstamp delay) EV_THROW
1255{ 1583{
1256 if (delay > 0.) 1584 if (delay > 0.)
1257 { 1585 {
1258#if EV_USE_NANOSLEEP 1586#if EV_USE_NANOSLEEP
1259 struct timespec ts; 1587 struct timespec ts;
1260 1588
1261 EV_TS_SET (ts, delay); 1589 EV_TS_SET (ts, delay);
1262 nanosleep (&ts, 0); 1590 nanosleep (&ts, 0);
1263#elif defined(_WIN32) 1591#elif defined _WIN32
1264 Sleep ((unsigned long)(delay * 1e3)); 1592 Sleep ((unsigned long)(delay * 1e3));
1265#else 1593#else
1266 struct timeval tv; 1594 struct timeval tv;
1267 1595
1268 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1596 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1287 1615
1288 do 1616 do
1289 ncur <<= 1; 1617 ncur <<= 1;
1290 while (cnt > ncur); 1618 while (cnt > ncur);
1291 1619
1292 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1620 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1293 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1621 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1294 { 1622 {
1295 ncur *= elem; 1623 ncur *= elem;
1296 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1624 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1297 ncur = ncur - sizeof (void *) * 4; 1625 ncur = ncur - sizeof (void *) * 4;
… …
1340pendingcb (EV_P_ ev_prepare *w, int revents) 1668pendingcb (EV_P_ ev_prepare *w, int revents)
1341{ 1669{
1342} 1670}
1343 1671
1344void noinline 1672void noinline
1345ev_feed_event (EV_P_ void *w, int revents) 1673ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1346{ 1674{
1347 W w_ = (W)w; 1675 W w_ = (W)w;
1348 int pri = ABSPRI (w_); 1676 int pri = ABSPRI (w_);
1349 1677
1350 if (expect_false (w_->pending)) 1678 if (expect_false (w_->pending))
… …
1354 w_->pending = ++pendingcnt [pri]; 1682 w_->pending = ++pendingcnt [pri];
1355 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1683 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1356 pendings [pri][w_->pending - 1].w = w_; 1684 pendings [pri][w_->pending - 1].w = w_;
1357 pendings [pri][w_->pending - 1].events = revents; 1685 pendings [pri][w_->pending - 1].events = revents;
1358 } 1686 }
1687
1688 pendingpri = NUMPRI - 1;
1359} 1689}
1360 1690
1361inline_speed void 1691inline_speed void
1362feed_reverse (EV_P_ W w) 1692feed_reverse (EV_P_ W w)
1363{ 1693{
… …
1409 if (expect_true (!anfd->reify)) 1739 if (expect_true (!anfd->reify))
1410 fd_event_nocheck (EV_A_ fd, revents); 1740 fd_event_nocheck (EV_A_ fd, revents);
1411} 1741}
1412 1742
1413void 1743void
1414ev_feed_fd_event (EV_P_ int fd, int revents) 1744ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1415{ 1745{
1416 if (fd >= 0 && fd < anfdmax) 1746 if (fd >= 0 && fd < anfdmax)
1417 fd_event_nocheck (EV_A_ fd, revents); 1747 fd_event_nocheck (EV_A_ fd, revents);
1418} 1748}
1419 1749
… …
1738static void noinline ecb_cold 2068static void noinline ecb_cold
1739evpipe_init (EV_P) 2069evpipe_init (EV_P)
1740{ 2070{
1741 if (!ev_is_active (&pipe_w)) 2071 if (!ev_is_active (&pipe_w))
1742 { 2072 {
2073 int fds [2];
2074
1743# if EV_USE_EVENTFD 2075# if EV_USE_EVENTFD
2076 fds [0] = -1;
1744 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2077 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1745 if (evfd < 0 && errno == EINVAL) 2078 if (fds [1] < 0 && errno == EINVAL)
1746 evfd = eventfd (0, 0); 2079 fds [1] = eventfd (0, 0);
1747 2080
1748 if (evfd >= 0) 2081 if (fds [1] < 0)
2082# endif
1749 { 2083 {
2084 while (pipe (fds))
2085 ev_syserr ("(libev) error creating signal/async pipe");
2086
2087 fd_intern (fds [0]);
2088 }
2089
2090 fd_intern (fds [1]);
2091
1750 evpipe [0] = -1; 2092 evpipe [0] = fds [0];
1751 fd_intern (evfd); /* doing it twice doesn't hurt */ 2093
1752 ev_io_set (&pipe_w, evfd, EV_READ); 2094 if (evpipe [1] < 0)
2095 evpipe [1] = fds [1]; /* first call, set write fd */
2096 else
2097 {
2098 /* on subsequent calls, do not change evpipe [1] */
2099 /* so that evpipe_write can always rely on its value. */
2100 /* this branch does not do anything sensible on windows, */
2101 /* so must not be executed on windows */
2102
2103 dup2 (fds [1], evpipe [1]);
2104 close (fds [1]);
2105 }
2106
2107 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108 ev_io_start (EV_A_ &pipe_w);
2109 ev_unref (EV_A); /* watcher should not keep loop alive */
2110 }
2111}
2112
2113inline_speed void
2114evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2115{
2116 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2117
2118 if (expect_true (*flag))
2119 return;
2120
2121 *flag = 1;
2122 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2123
2124 pipe_write_skipped = 1;
2125
2126 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2127
2128 if (pipe_write_wanted)
2129 {
2130 int old_errno;
2131
2132 pipe_write_skipped = 0;
2133 ECB_MEMORY_FENCE_RELEASE;
2134
2135 old_errno = errno; /* save errno because write will clobber it */
2136
2137#if EV_USE_EVENTFD
2138 if (evpipe [0] < 0)
2139 {
2140 uint64_t counter = 1;
2141 write (evpipe [1], &counter, sizeof (uint64_t));
1753 } 2142 }
1754 else 2143 else
1755# endif 2144#endif
1756 { 2145 {
1757 while (pipe (evpipe)) 2146#ifdef _WIN32
1758 ev_syserr ("(libev) error creating signal/async pipe"); 2147 WSABUF buf;
1759 2148 DWORD sent;
1760 fd_intern (evpipe [0]); 2149 buf.buf = &buf;
1761 fd_intern (evpipe [1]); 2150 buf.len = 1;
1762 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2151 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1763 } 2152#else
1764
1765 ev_io_start (EV_A_ &pipe_w);
1766 ev_unref (EV_A); /* watcher should not keep loop alive */
1767 }
1768}
1769
1770inline_speed void
1771evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1772{
1773 if (expect_true (*flag))
1774 return;
1775
1776 *flag = 1;
1777
1778 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1779
1780 pipe_write_skipped = 1;
1781
1782 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1783
1784 if (pipe_write_wanted)
1785 {
1786 int old_errno;
1787
1788 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1789
1790 old_errno = errno; /* save errno because write will clobber it */
1791
1792#if EV_USE_EVENTFD
1793 if (evfd >= 0)
1794 {
1795 uint64_t counter = 1;
1796 write (evfd, &counter, sizeof (uint64_t));
1797 }
1798 else
1799#endif
1800 {
1801 /* win32 people keep sending patches that change this write() to send() */
1802 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1803 /* so when you think this write should be a send instead, please find out */
1804 /* where your send() is from - it's definitely not the microsoft send, and */
1805 /* tell me. thank you. */
1806 write (evpipe [1], &(evpipe [1]), 1); 2153 write (evpipe [1], &(evpipe [1]), 1);
2154#endif
1807 } 2155 }
1808 2156
1809 errno = old_errno; 2157 errno = old_errno;
1810 } 2158 }
1811} 2159}
… …
1818 int i; 2166 int i;
1819 2167
1820 if (revents & EV_READ) 2168 if (revents & EV_READ)
1821 { 2169 {
1822#if EV_USE_EVENTFD 2170#if EV_USE_EVENTFD
1823 if (evfd >= 0) 2171 if (evpipe [0] < 0)
1824 { 2172 {
1825 uint64_t counter; 2173 uint64_t counter;
1826 read (evfd, &counter, sizeof (uint64_t)); 2174 read (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2175 }
1828 else 2176 else
1829#endif 2177#endif
1830 { 2178 {
1831 char dummy; 2179 char dummy[4];
1832 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2180#ifdef _WIN32
2181 WSABUF buf;
2182 DWORD recvd;
2183 DWORD flags = 0;
2184 buf.buf = dummy;
2185 buf.len = sizeof (dummy);
2186 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2187#else
1833 read (evpipe [0], &dummy, 1); 2188 read (evpipe [0], &dummy, sizeof (dummy));
2189#endif
1834 } 2190 }
1835 } 2191 }
1836 2192
1837 pipe_write_skipped = 0; 2193 pipe_write_skipped = 0;
2194
2195 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1838 2196
1839#if EV_SIGNAL_ENABLE 2197#if EV_SIGNAL_ENABLE
1840 if (sig_pending) 2198 if (sig_pending)
1841 { 2199 {
1842 sig_pending = 0; 2200 sig_pending = 0;
2201
2202 ECB_MEMORY_FENCE;
1843 2203
1844 for (i = EV_NSIG - 1; i--; ) 2204 for (i = EV_NSIG - 1; i--; )
1845 if (expect_false (signals [i].pending)) 2205 if (expect_false (signals [i].pending))
1846 ev_feed_signal_event (EV_A_ i + 1); 2206 ev_feed_signal_event (EV_A_ i + 1);
1847 } 2207 }
… …
1849 2209
1850#if EV_ASYNC_ENABLE 2210#if EV_ASYNC_ENABLE
1851 if (async_pending) 2211 if (async_pending)
1852 { 2212 {
1853 async_pending = 0; 2213 async_pending = 0;
2214
2215 ECB_MEMORY_FENCE;
1854 2216
1855 for (i = asynccnt; i--; ) 2217 for (i = asynccnt; i--; )
1856 if (asyncs [i]->sent) 2218 if (asyncs [i]->sent)
1857 { 2219 {
1858 asyncs [i]->sent = 0; 2220 asyncs [i]->sent = 0;
2221 ECB_MEMORY_FENCE_RELEASE;
1859 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2222 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1860 } 2223 }
1861 } 2224 }
1862#endif 2225#endif
1863} 2226}
1864 2227
1865/*****************************************************************************/ 2228/*****************************************************************************/
1866 2229
1867void 2230void
1868ev_feed_signal (int signum) 2231ev_feed_signal (int signum) EV_THROW
1869{ 2232{
1870#if EV_MULTIPLICITY 2233#if EV_MULTIPLICITY
2234 ECB_MEMORY_FENCE_ACQUIRE;
1871 EV_P = signals [signum - 1].loop; 2235 EV_P = signals [signum - 1].loop;
1872 2236
1873 if (!EV_A) 2237 if (!EV_A)
1874 return; 2238 return;
1875#endif 2239#endif
1876 2240
1877 if (!ev_active (&pipe_w))
1878 return;
1879
1880 signals [signum - 1].pending = 1; 2241 signals [signum - 1].pending = 1;
1881 evpipe_write (EV_A_ &sig_pending); 2242 evpipe_write (EV_A_ &sig_pending);
1882} 2243}
1883 2244
1884static void 2245static void
… …
1890 2251
1891 ev_feed_signal (signum); 2252 ev_feed_signal (signum);
1892} 2253}
1893 2254
1894void noinline 2255void noinline
1895ev_feed_signal_event (EV_P_ int signum) 2256ev_feed_signal_event (EV_P_ int signum) EV_THROW
1896{ 2257{
1897 WL w; 2258 WL w;
1898 2259
1899 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2260 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1900 return; 2261 return;
1901 2262
1902 --signum; 2263 --signum;
1903 2264
1904#if EV_MULTIPLICITY 2265#if EV_MULTIPLICITY
… …
1908 if (expect_false (signals [signum].loop != EV_A)) 2269 if (expect_false (signals [signum].loop != EV_A))
1909 return; 2270 return;
1910#endif 2271#endif
1911 2272
1912 signals [signum].pending = 0; 2273 signals [signum].pending = 0;
2274 ECB_MEMORY_FENCE_RELEASE;
1913 2275
1914 for (w = signals [signum].head; w; w = w->next) 2276 for (w = signals [signum].head; w; w = w->next)
1915 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2277 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1916} 2278}
1917 2279
… …
2016#if EV_USE_SELECT 2378#if EV_USE_SELECT
2017# include "ev_select.c" 2379# include "ev_select.c"
2018#endif 2380#endif
2019 2381
2020int ecb_cold 2382int ecb_cold
2021ev_version_major (void) 2383ev_version_major (void) EV_THROW
2022{ 2384{
2023 return EV_VERSION_MAJOR; 2385 return EV_VERSION_MAJOR;
2024} 2386}
2025 2387
2026int ecb_cold 2388int ecb_cold
2027ev_version_minor (void) 2389ev_version_minor (void) EV_THROW
2028{ 2390{
2029 return EV_VERSION_MINOR; 2391 return EV_VERSION_MINOR;
2030} 2392}
2031 2393
2032/* return true if we are running with elevated privileges and should ignore env variables */ 2394/* return true if we are running with elevated privileges and should ignore env variables */
… …
2040 || getgid () != getegid (); 2402 || getgid () != getegid ();
2041#endif 2403#endif
2042} 2404}
2043 2405
2044unsigned int ecb_cold 2406unsigned int ecb_cold
2045ev_supported_backends (void) 2407ev_supported_backends (void) EV_THROW
2046{ 2408{
2047 unsigned int flags = 0; 2409 unsigned int flags = 0;
2048 2410
2049 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2411 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2050 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2412 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2054 2416
2055 return flags; 2417 return flags;
2056} 2418}
2057 2419
2058unsigned int ecb_cold 2420unsigned int ecb_cold
2059ev_recommended_backends (void) 2421ev_recommended_backends (void) EV_THROW
2060{ 2422{
2061 unsigned int flags = ev_supported_backends (); 2423 unsigned int flags = ev_supported_backends ();
2062 2424
2063#ifndef __NetBSD__ 2425#ifndef __NetBSD__
2064 /* kqueue is borked on everything but netbsd apparently */ 2426 /* kqueue is borked on everything but netbsd apparently */
… …
2076 2438
2077 return flags; 2439 return flags;
2078} 2440}
2079 2441
2080unsigned int ecb_cold 2442unsigned int ecb_cold
2081ev_embeddable_backends (void) 2443ev_embeddable_backends (void) EV_THROW
2082{ 2444{
2083 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2445 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2084 2446
2085 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2447 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2086 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2448 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2088 2450
2089 return flags; 2451 return flags;
2090} 2452}
2091 2453
2092unsigned int 2454unsigned int
2093ev_backend (EV_P) 2455ev_backend (EV_P) EV_THROW
2094{ 2456{
2095 return backend; 2457 return backend;
2096} 2458}
2097 2459
2098#if EV_FEATURE_API 2460#if EV_FEATURE_API
2099unsigned int 2461unsigned int
2100ev_iteration (EV_P) 2462ev_iteration (EV_P) EV_THROW
2101{ 2463{
2102 return loop_count; 2464 return loop_count;
2103} 2465}
2104 2466
2105unsigned int 2467unsigned int
2106ev_depth (EV_P) 2468ev_depth (EV_P) EV_THROW
2107{ 2469{
2108 return loop_depth; 2470 return loop_depth;
2109} 2471}
2110 2472
2111void 2473void
2112ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2474ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2113{ 2475{
2114 io_blocktime = interval; 2476 io_blocktime = interval;
2115} 2477}
2116 2478
2117void 2479void
2118ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2480ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2119{ 2481{
2120 timeout_blocktime = interval; 2482 timeout_blocktime = interval;
2121} 2483}
2122 2484
2123void 2485void
2124ev_set_userdata (EV_P_ void *data) 2486ev_set_userdata (EV_P_ void *data) EV_THROW
2125{ 2487{
2126 userdata = data; 2488 userdata = data;
2127} 2489}
2128 2490
2129void * 2491void *
2130ev_userdata (EV_P) 2492ev_userdata (EV_P) EV_THROW
2131{ 2493{
2132 return userdata; 2494 return userdata;
2133} 2495}
2134 2496
2135void 2497void
2136ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2498ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2137{ 2499{
2138 invoke_cb = invoke_pending_cb; 2500 invoke_cb = invoke_pending_cb;
2139} 2501}
2140 2502
2141void 2503void
2142ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2504ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2143{ 2505{
2144 release_cb = release; 2506 release_cb = release;
2145 acquire_cb = acquire; 2507 acquire_cb = acquire;
2146} 2508}
2147#endif 2509#endif
2148 2510
2149/* initialise a loop structure, must be zero-initialised */ 2511/* initialise a loop structure, must be zero-initialised */
2150static void noinline ecb_cold 2512static void noinline ecb_cold
2151loop_init (EV_P_ unsigned int flags) 2513loop_init (EV_P_ unsigned int flags) EV_THROW
2152{ 2514{
2153 if (!backend) 2515 if (!backend)
2154 { 2516 {
2155 origflags = flags; 2517 origflags = flags;
2156 2518
… …
2201#if EV_ASYNC_ENABLE 2563#if EV_ASYNC_ENABLE
2202 async_pending = 0; 2564 async_pending = 0;
2203#endif 2565#endif
2204 pipe_write_skipped = 0; 2566 pipe_write_skipped = 0;
2205 pipe_write_wanted = 0; 2567 pipe_write_wanted = 0;
2568 evpipe [0] = -1;
2569 evpipe [1] = -1;
2206#if EV_USE_INOTIFY 2570#if EV_USE_INOTIFY
2207 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2571 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2208#endif 2572#endif
2209#if EV_USE_SIGNALFD 2573#if EV_USE_SIGNALFD
2210 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2574 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2261 EV_INVOKE_PENDING; 2625 EV_INVOKE_PENDING;
2262 } 2626 }
2263#endif 2627#endif
2264 2628
2265#if EV_CHILD_ENABLE 2629#if EV_CHILD_ENABLE
2266 if (ev_is_active (&childev)) 2630 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2267 { 2631 {
2268 ev_ref (EV_A); /* child watcher */ 2632 ev_ref (EV_A); /* child watcher */
2269 ev_signal_stop (EV_A_ &childev); 2633 ev_signal_stop (EV_A_ &childev);
2270 } 2634 }
2271#endif 2635#endif
… …
2273 if (ev_is_active (&pipe_w)) 2637 if (ev_is_active (&pipe_w))
2274 { 2638 {
2275 /*ev_ref (EV_A);*/ 2639 /*ev_ref (EV_A);*/
2276 /*ev_io_stop (EV_A_ &pipe_w);*/ 2640 /*ev_io_stop (EV_A_ &pipe_w);*/
2277 2641
2278#if EV_USE_EVENTFD
2279 if (evfd >= 0)
2280 close (evfd);
2281#endif
2282
2283 if (evpipe [0] >= 0)
2284 {
2285 EV_WIN32_CLOSE_FD (evpipe [0]); 2642 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2286 EV_WIN32_CLOSE_FD (evpipe [1]); 2643 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2287 }
2288 } 2644 }
2289 2645
2290#if EV_USE_SIGNALFD 2646#if EV_USE_SIGNALFD
2291 if (ev_is_active (&sigfd_w)) 2647 if (ev_is_active (&sigfd_w))
2292 close (sigfd); 2648 close (sigfd);
… …
2378#endif 2734#endif
2379#if EV_USE_INOTIFY 2735#if EV_USE_INOTIFY
2380 infy_fork (EV_A); 2736 infy_fork (EV_A);
2381#endif 2737#endif
2382 2738
2739#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2383 if (ev_is_active (&pipe_w)) 2740 if (ev_is_active (&pipe_w))
2384 { 2741 {
2385 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2742 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2386 2743
2387 ev_ref (EV_A); 2744 ev_ref (EV_A);
2388 ev_io_stop (EV_A_ &pipe_w); 2745 ev_io_stop (EV_A_ &pipe_w);
2389 2746
2390#if EV_USE_EVENTFD
2391 if (evfd >= 0)
2392 close (evfd);
2393#endif
2394
2395 if (evpipe [0] >= 0) 2747 if (evpipe [0] >= 0)
2396 {
2397 EV_WIN32_CLOSE_FD (evpipe [0]); 2748 EV_WIN32_CLOSE_FD (evpipe [0]);
2398 EV_WIN32_CLOSE_FD (evpipe [1]);
2399 }
2400 2749
2401#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2402 evpipe_init (EV_A); 2750 evpipe_init (EV_A);
2403 /* now iterate over everything, in case we missed something */ 2751 /* iterate over everything, in case we missed something before */
2404 pipecb (EV_A_ &pipe_w, EV_READ); 2752 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2405#endif
2406 } 2753 }
2754#endif
2407 2755
2408 postfork = 0; 2756 postfork = 0;
2409} 2757}
2410 2758
2411#if EV_MULTIPLICITY 2759#if EV_MULTIPLICITY
2412 2760
2413struct ev_loop * ecb_cold 2761struct ev_loop * ecb_cold
2414ev_loop_new (unsigned int flags) 2762ev_loop_new (unsigned int flags) EV_THROW
2415{ 2763{
2416 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2764 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2417 2765
2418 memset (EV_A, 0, sizeof (struct ev_loop)); 2766 memset (EV_A, 0, sizeof (struct ev_loop));
2419 loop_init (EV_A_ flags); 2767 loop_init (EV_A_ flags);
… …
2463} 2811}
2464#endif 2812#endif
2465 2813
2466#if EV_FEATURE_API 2814#if EV_FEATURE_API
2467void ecb_cold 2815void ecb_cold
2468ev_verify (EV_P) 2816ev_verify (EV_P) EV_THROW
2469{ 2817{
2470#if EV_VERIFY 2818#if EV_VERIFY
2471 int i; 2819 int i;
2472 WL w; 2820 WL w, w2;
2473 2821
2474 assert (activecnt >= -1); 2822 assert (activecnt >= -1);
2475 2823
2476 assert (fdchangemax >= fdchangecnt); 2824 assert (fdchangemax >= fdchangecnt);
2477 for (i = 0; i < fdchangecnt; ++i) 2825 for (i = 0; i < fdchangecnt; ++i)
2478 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2826 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2479 2827
2480 assert (anfdmax >= 0); 2828 assert (anfdmax >= 0);
2481 for (i = 0; i < anfdmax; ++i) 2829 for (i = 0; i < anfdmax; ++i)
2830 {
2831 int j = 0;
2832
2482 for (w = anfds [i].head; w; w = w->next) 2833 for (w = w2 = anfds [i].head; w; w = w->next)
2483 { 2834 {
2484 verify_watcher (EV_A_ (W)w); 2835 verify_watcher (EV_A_ (W)w);
2836
2837 if (j++ & 1)
2838 {
2839 assert (("libev: io watcher list contains a loop", w != w2));
2840 w2 = w2->next;
2841 }
2842
2485 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2843 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2486 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2844 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2487 } 2845 }
2846 }
2488 2847
2489 assert (timermax >= timercnt); 2848 assert (timermax >= timercnt);
2490 verify_heap (EV_A_ timers, timercnt); 2849 verify_heap (EV_A_ timers, timercnt);
2491 2850
2492#if EV_PERIODIC_ENABLE 2851#if EV_PERIODIC_ENABLE
… …
2542#if EV_MULTIPLICITY 2901#if EV_MULTIPLICITY
2543struct ev_loop * ecb_cold 2902struct ev_loop * ecb_cold
2544#else 2903#else
2545int 2904int
2546#endif 2905#endif
2547ev_default_loop (unsigned int flags) 2906ev_default_loop (unsigned int flags) EV_THROW
2548{ 2907{
2549 if (!ev_default_loop_ptr) 2908 if (!ev_default_loop_ptr)
2550 { 2909 {
2551#if EV_MULTIPLICITY 2910#if EV_MULTIPLICITY
2552 EV_P = ev_default_loop_ptr = &default_loop_struct; 2911 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2571 2930
2572 return ev_default_loop_ptr; 2931 return ev_default_loop_ptr;
2573} 2932}
2574 2933
2575void 2934void
2576ev_loop_fork (EV_P) 2935ev_loop_fork (EV_P) EV_THROW
2577{ 2936{
2578 postfork = 1; /* must be in line with ev_default_fork */ 2937 postfork = 1;
2579} 2938}
2580 2939
2581/*****************************************************************************/ 2940/*****************************************************************************/
2582 2941
2583void 2942void
… …
2585{ 2944{
2586 EV_CB_INVOKE ((W)w, revents); 2945 EV_CB_INVOKE ((W)w, revents);
2587} 2946}
2588 2947
2589unsigned int 2948unsigned int
2590ev_pending_count (EV_P) 2949ev_pending_count (EV_P) EV_THROW
2591{ 2950{
2592 int pri; 2951 int pri;
2593 unsigned int count = 0; 2952 unsigned int count = 0;
2594 2953
2595 for (pri = NUMPRI; pri--; ) 2954 for (pri = NUMPRI; pri--; )
… …
2599} 2958}
2600 2959
2601void noinline 2960void noinline
2602ev_invoke_pending (EV_P) 2961ev_invoke_pending (EV_P)
2603{ 2962{
2604 int pri; 2963 pendingpri = NUMPRI;
2605 2964
2606 for (pri = NUMPRI; pri--; ) 2965 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2966 {
2967 --pendingpri;
2968
2607 while (pendingcnt [pri]) 2969 while (pendingcnt [pendingpri])
2608 { 2970 {
2609 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2971 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2610 2972
2611 p->w->pending = 0; 2973 p->w->pending = 0;
2612 EV_CB_INVOKE (p->w, p->events); 2974 EV_CB_INVOKE (p->w, p->events);
2613 EV_FREQUENT_CHECK; 2975 EV_FREQUENT_CHECK;
2614 } 2976 }
2977 }
2615} 2978}
2616 2979
2617#if EV_IDLE_ENABLE 2980#if EV_IDLE_ENABLE
2618/* make idle watchers pending. this handles the "call-idle */ 2981/* make idle watchers pending. this handles the "call-idle */
2619/* only when higher priorities are idle" logic */ 2982/* only when higher priorities are idle" logic */
… …
2709{ 3072{
2710 EV_FREQUENT_CHECK; 3073 EV_FREQUENT_CHECK;
2711 3074
2712 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3075 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2713 { 3076 {
2714 int feed_count = 0;
2715
2716 do 3077 do
2717 { 3078 {
2718 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3079 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2719 3080
2720 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3081 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2854 3215
2855 mn_now = ev_rt_now; 3216 mn_now = ev_rt_now;
2856 } 3217 }
2857} 3218}
2858 3219
2859void 3220int
2860ev_run (EV_P_ int flags) 3221ev_run (EV_P_ int flags)
2861{ 3222{
2862#if EV_FEATURE_API 3223#if EV_FEATURE_API
2863 ++loop_depth; 3224 ++loop_depth;
2864#endif 3225#endif
… …
2977#endif 3338#endif
2978 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3339 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2979 backend_poll (EV_A_ waittime); 3340 backend_poll (EV_A_ waittime);
2980 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3341 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2981 3342
2982 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3343 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2983 3344
3345 ECB_MEMORY_FENCE_ACQUIRE;
2984 if (pipe_write_skipped) 3346 if (pipe_write_skipped)
2985 { 3347 {
2986 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3348 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2987 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3349 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2988 } 3350 }
… …
3021 loop_done = EVBREAK_CANCEL; 3383 loop_done = EVBREAK_CANCEL;
3022 3384
3023#if EV_FEATURE_API 3385#if EV_FEATURE_API
3024 --loop_depth; 3386 --loop_depth;
3025#endif 3387#endif
3388
3389 return activecnt;
3026} 3390}
3027 3391
3028void 3392void
3029ev_break (EV_P_ int how) 3393ev_break (EV_P_ int how) EV_THROW
3030{ 3394{
3031 loop_done = how; 3395 loop_done = how;
3032} 3396}
3033 3397
3034void 3398void
3035ev_ref (EV_P) 3399ev_ref (EV_P) EV_THROW
3036{ 3400{
3037 ++activecnt; 3401 ++activecnt;
3038} 3402}
3039 3403
3040void 3404void
3041ev_unref (EV_P) 3405ev_unref (EV_P) EV_THROW
3042{ 3406{
3043 --activecnt; 3407 --activecnt;
3044} 3408}
3045 3409
3046void 3410void
3047ev_now_update (EV_P) 3411ev_now_update (EV_P) EV_THROW
3048{ 3412{
3049 time_update (EV_A_ 1e100); 3413 time_update (EV_A_ 1e100);
3050} 3414}
3051 3415
3052void 3416void
3053ev_suspend (EV_P) 3417ev_suspend (EV_P) EV_THROW
3054{ 3418{
3055 ev_now_update (EV_A); 3419 ev_now_update (EV_A);
3056} 3420}
3057 3421
3058void 3422void
3059ev_resume (EV_P) 3423ev_resume (EV_P) EV_THROW
3060{ 3424{
3061 ev_tstamp mn_prev = mn_now; 3425 ev_tstamp mn_prev = mn_now;
3062 3426
3063 ev_now_update (EV_A); 3427 ev_now_update (EV_A);
3064 timers_reschedule (EV_A_ mn_now - mn_prev); 3428 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3103 w->pending = 0; 3467 w->pending = 0;
3104 } 3468 }
3105} 3469}
3106 3470
3107int 3471int
3108ev_clear_pending (EV_P_ void *w) 3472ev_clear_pending (EV_P_ void *w) EV_THROW
3109{ 3473{
3110 W w_ = (W)w; 3474 W w_ = (W)w;
3111 int pending = w_->pending; 3475 int pending = w_->pending;
3112 3476
3113 if (expect_true (pending)) 3477 if (expect_true (pending))
… …
3146} 3510}
3147 3511
3148/*****************************************************************************/ 3512/*****************************************************************************/
3149 3513
3150void noinline 3514void noinline
3151ev_io_start (EV_P_ ev_io *w) 3515ev_io_start (EV_P_ ev_io *w) EV_THROW
3152{ 3516{
3153 int fd = w->fd; 3517 int fd = w->fd;
3154 3518
3155 if (expect_false (ev_is_active (w))) 3519 if (expect_false (ev_is_active (w)))
3156 return; 3520 return;
… …
3162 3526
3163 ev_start (EV_A_ (W)w, 1); 3527 ev_start (EV_A_ (W)w, 1);
3164 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3528 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3165 wlist_add (&anfds[fd].head, (WL)w); 3529 wlist_add (&anfds[fd].head, (WL)w);
3166 3530
3531 /* common bug, apparently */
3532 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3533
3167 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3534 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3168 w->events &= ~EV__IOFDSET; 3535 w->events &= ~EV__IOFDSET;
3169 3536
3170 EV_FREQUENT_CHECK; 3537 EV_FREQUENT_CHECK;
3171} 3538}
3172 3539
3173void noinline 3540void noinline
3174ev_io_stop (EV_P_ ev_io *w) 3541ev_io_stop (EV_P_ ev_io *w) EV_THROW
3175{ 3542{
3176 clear_pending (EV_A_ (W)w); 3543 clear_pending (EV_A_ (W)w);
3177 if (expect_false (!ev_is_active (w))) 3544 if (expect_false (!ev_is_active (w)))
3178 return; 3545 return;
3179 3546
… …
3188 3555
3189 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
3190} 3557}
3191 3558
3192void noinline 3559void noinline
3193ev_timer_start (EV_P_ ev_timer *w) 3560ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3194{ 3561{
3195 if (expect_false (ev_is_active (w))) 3562 if (expect_false (ev_is_active (w)))
3196 return; 3563 return;
3197 3564
3198 ev_at (w) += mn_now; 3565 ev_at (w) += mn_now;
… …
3212 3579
3213 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3214} 3581}
3215 3582
3216void noinline 3583void noinline
3217ev_timer_stop (EV_P_ ev_timer *w) 3584ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3218{ 3585{
3219 clear_pending (EV_A_ (W)w); 3586 clear_pending (EV_A_ (W)w);
3220 if (expect_false (!ev_is_active (w))) 3587 if (expect_false (!ev_is_active (w)))
3221 return; 3588 return;
3222 3589
… …
3242 3609
3243 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
3244} 3611}
3245 3612
3246void noinline 3613void noinline
3247ev_timer_again (EV_P_ ev_timer *w) 3614ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3248{ 3615{
3249 EV_FREQUENT_CHECK; 3616 EV_FREQUENT_CHECK;
3617
3618 clear_pending (EV_A_ (W)w);
3250 3619
3251 if (ev_is_active (w)) 3620 if (ev_is_active (w))
3252 { 3621 {
3253 if (w->repeat) 3622 if (w->repeat)
3254 { 3623 {
… …
3267 3636
3268 EV_FREQUENT_CHECK; 3637 EV_FREQUENT_CHECK;
3269} 3638}
3270 3639
3271ev_tstamp 3640ev_tstamp
3272ev_timer_remaining (EV_P_ ev_timer *w) 3641ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3273{ 3642{
3274 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3643 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3275} 3644}
3276 3645
3277#if EV_PERIODIC_ENABLE 3646#if EV_PERIODIC_ENABLE
3278void noinline 3647void noinline
3279ev_periodic_start (EV_P_ ev_periodic *w) 3648ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3280{ 3649{
3281 if (expect_false (ev_is_active (w))) 3650 if (expect_false (ev_is_active (w)))
3282 return; 3651 return;
3283 3652
3284 if (w->reschedule_cb) 3653 if (w->reschedule_cb)
… …
3304 3673
3305 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3674 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3306} 3675}
3307 3676
3308void noinline 3677void noinline
3309ev_periodic_stop (EV_P_ ev_periodic *w) 3678ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3310{ 3679{
3311 clear_pending (EV_A_ (W)w); 3680 clear_pending (EV_A_ (W)w);
3312 if (expect_false (!ev_is_active (w))) 3681 if (expect_false (!ev_is_active (w)))
3313 return; 3682 return;
3314 3683
… …
3332 3701
3333 EV_FREQUENT_CHECK; 3702 EV_FREQUENT_CHECK;
3334} 3703}
3335 3704
3336void noinline 3705void noinline
3337ev_periodic_again (EV_P_ ev_periodic *w) 3706ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3338{ 3707{
3339 /* TODO: use adjustheap and recalculation */ 3708 /* TODO: use adjustheap and recalculation */
3340 ev_periodic_stop (EV_A_ w); 3709 ev_periodic_stop (EV_A_ w);
3341 ev_periodic_start (EV_A_ w); 3710 ev_periodic_start (EV_A_ w);
3342} 3711}
… …
3347#endif 3716#endif
3348 3717
3349#if EV_SIGNAL_ENABLE 3718#if EV_SIGNAL_ENABLE
3350 3719
3351void noinline 3720void noinline
3352ev_signal_start (EV_P_ ev_signal *w) 3721ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3353{ 3722{
3354 if (expect_false (ev_is_active (w))) 3723 if (expect_false (ev_is_active (w)))
3355 return; 3724 return;
3356 3725
3357 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3726 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3359#if EV_MULTIPLICITY 3728#if EV_MULTIPLICITY
3360 assert (("libev: a signal must not be attached to two different loops", 3729 assert (("libev: a signal must not be attached to two different loops",
3361 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3730 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3362 3731
3363 signals [w->signum - 1].loop = EV_A; 3732 signals [w->signum - 1].loop = EV_A;
3733 ECB_MEMORY_FENCE_RELEASE;
3364#endif 3734#endif
3365 3735
3366 EV_FREQUENT_CHECK; 3736 EV_FREQUENT_CHECK;
3367 3737
3368#if EV_USE_SIGNALFD 3738#if EV_USE_SIGNALFD
… …
3428 3798
3429 EV_FREQUENT_CHECK; 3799 EV_FREQUENT_CHECK;
3430} 3800}
3431 3801
3432void noinline 3802void noinline
3433ev_signal_stop (EV_P_ ev_signal *w) 3803ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3434{ 3804{
3435 clear_pending (EV_A_ (W)w); 3805 clear_pending (EV_A_ (W)w);
3436 if (expect_false (!ev_is_active (w))) 3806 if (expect_false (!ev_is_active (w)))
3437 return; 3807 return;
3438 3808
… …
3469#endif 3839#endif
3470 3840
3471#if EV_CHILD_ENABLE 3841#if EV_CHILD_ENABLE
3472 3842
3473void 3843void
3474ev_child_start (EV_P_ ev_child *w) 3844ev_child_start (EV_P_ ev_child *w) EV_THROW
3475{ 3845{
3476#if EV_MULTIPLICITY 3846#if EV_MULTIPLICITY
3477 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3847 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3478#endif 3848#endif
3479 if (expect_false (ev_is_active (w))) 3849 if (expect_false (ev_is_active (w)))
… …
3486 3856
3487 EV_FREQUENT_CHECK; 3857 EV_FREQUENT_CHECK;
3488} 3858}
3489 3859
3490void 3860void
3491ev_child_stop (EV_P_ ev_child *w) 3861ev_child_stop (EV_P_ ev_child *w) EV_THROW
3492{ 3862{
3493 clear_pending (EV_A_ (W)w); 3863 clear_pending (EV_A_ (W)w);
3494 if (expect_false (!ev_is_active (w))) 3864 if (expect_false (!ev_is_active (w)))
3495 return; 3865 return;
3496 3866
… …
3663} 4033}
3664 4034
3665inline_size int 4035inline_size int
3666infy_newfd (void) 4036infy_newfd (void)
3667{ 4037{
3668#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4038#if defined IN_CLOEXEC && defined IN_NONBLOCK
3669 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4039 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3670 if (fd >= 0) 4040 if (fd >= 0)
3671 return fd; 4041 return fd;
3672#endif 4042#endif
3673 return inotify_init (); 4043 return inotify_init ();
… …
3748#else 4118#else
3749# define EV_LSTAT(p,b) lstat (p, b) 4119# define EV_LSTAT(p,b) lstat (p, b)
3750#endif 4120#endif
3751 4121
3752void 4122void
3753ev_stat_stat (EV_P_ ev_stat *w) 4123ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3754{ 4124{
3755 if (lstat (w->path, &w->attr) < 0) 4125 if (lstat (w->path, &w->attr) < 0)
3756 w->attr.st_nlink = 0; 4126 w->attr.st_nlink = 0;
3757 else if (!w->attr.st_nlink) 4127 else if (!w->attr.st_nlink)
3758 w->attr.st_nlink = 1; 4128 w->attr.st_nlink = 1;
… …
3797 ev_feed_event (EV_A_ w, EV_STAT); 4167 ev_feed_event (EV_A_ w, EV_STAT);
3798 } 4168 }
3799} 4169}
3800 4170
3801void 4171void
3802ev_stat_start (EV_P_ ev_stat *w) 4172ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3803{ 4173{
3804 if (expect_false (ev_is_active (w))) 4174 if (expect_false (ev_is_active (w)))
3805 return; 4175 return;
3806 4176
3807 ev_stat_stat (EV_A_ w); 4177 ev_stat_stat (EV_A_ w);
… …
3828 4198
3829 EV_FREQUENT_CHECK; 4199 EV_FREQUENT_CHECK;
3830} 4200}
3831 4201
3832void 4202void
3833ev_stat_stop (EV_P_ ev_stat *w) 4203ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3834{ 4204{
3835 clear_pending (EV_A_ (W)w); 4205 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w))) 4206 if (expect_false (!ev_is_active (w)))
3837 return; 4207 return;
3838 4208
… …
3854} 4224}
3855#endif 4225#endif
3856 4226
3857#if EV_IDLE_ENABLE 4227#if EV_IDLE_ENABLE
3858void 4228void
3859ev_idle_start (EV_P_ ev_idle *w) 4229ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3860{ 4230{
3861 if (expect_false (ev_is_active (w))) 4231 if (expect_false (ev_is_active (w)))
3862 return; 4232 return;
3863 4233
3864 pri_adjust (EV_A_ (W)w); 4234 pri_adjust (EV_A_ (W)w);
… …
3877 4247
3878 EV_FREQUENT_CHECK; 4248 EV_FREQUENT_CHECK;
3879} 4249}
3880 4250
3881void 4251void
3882ev_idle_stop (EV_P_ ev_idle *w) 4252ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3883{ 4253{
3884 clear_pending (EV_A_ (W)w); 4254 clear_pending (EV_A_ (W)w);
3885 if (expect_false (!ev_is_active (w))) 4255 if (expect_false (!ev_is_active (w)))
3886 return; 4256 return;
3887 4257
… …
3901} 4271}
3902#endif 4272#endif
3903 4273
3904#if EV_PREPARE_ENABLE 4274#if EV_PREPARE_ENABLE
3905void 4275void
3906ev_prepare_start (EV_P_ ev_prepare *w) 4276ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3907{ 4277{
3908 if (expect_false (ev_is_active (w))) 4278 if (expect_false (ev_is_active (w)))
3909 return; 4279 return;
3910 4280
3911 EV_FREQUENT_CHECK; 4281 EV_FREQUENT_CHECK;
… …
3916 4286
3917 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3918} 4288}
3919 4289
3920void 4290void
3921ev_prepare_stop (EV_P_ ev_prepare *w) 4291ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3922{ 4292{
3923 clear_pending (EV_A_ (W)w); 4293 clear_pending (EV_A_ (W)w);
3924 if (expect_false (!ev_is_active (w))) 4294 if (expect_false (!ev_is_active (w)))
3925 return; 4295 return;
3926 4296
… …
3939} 4309}
3940#endif 4310#endif
3941 4311
3942#if EV_CHECK_ENABLE 4312#if EV_CHECK_ENABLE
3943void 4313void
3944ev_check_start (EV_P_ ev_check *w) 4314ev_check_start (EV_P_ ev_check *w) EV_THROW
3945{ 4315{
3946 if (expect_false (ev_is_active (w))) 4316 if (expect_false (ev_is_active (w)))
3947 return; 4317 return;
3948 4318
3949 EV_FREQUENT_CHECK; 4319 EV_FREQUENT_CHECK;
… …
3954 4324
3955 EV_FREQUENT_CHECK; 4325 EV_FREQUENT_CHECK;
3956} 4326}
3957 4327
3958void 4328void
3959ev_check_stop (EV_P_ ev_check *w) 4329ev_check_stop (EV_P_ ev_check *w) EV_THROW
3960{ 4330{
3961 clear_pending (EV_A_ (W)w); 4331 clear_pending (EV_A_ (W)w);
3962 if (expect_false (!ev_is_active (w))) 4332 if (expect_false (!ev_is_active (w)))
3963 return; 4333 return;
3964 4334
… …
3977} 4347}
3978#endif 4348#endif
3979 4349
3980#if EV_EMBED_ENABLE 4350#if EV_EMBED_ENABLE
3981void noinline 4351void noinline
3982ev_embed_sweep (EV_P_ ev_embed *w) 4352ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3983{ 4353{
3984 ev_run (w->other, EVRUN_NOWAIT); 4354 ev_run (w->other, EVRUN_NOWAIT);
3985} 4355}
3986 4356
3987static void 4357static void
… …
4035 ev_idle_stop (EV_A_ idle); 4405 ev_idle_stop (EV_A_ idle);
4036} 4406}
4037#endif 4407#endif
4038 4408
4039void 4409void
4040ev_embed_start (EV_P_ ev_embed *w) 4410ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4041{ 4411{
4042 if (expect_false (ev_is_active (w))) 4412 if (expect_false (ev_is_active (w)))
4043 return; 4413 return;
4044 4414
4045 { 4415 {
… …
4066 4436
4067 EV_FREQUENT_CHECK; 4437 EV_FREQUENT_CHECK;
4068} 4438}
4069 4439
4070void 4440void
4071ev_embed_stop (EV_P_ ev_embed *w) 4441ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4072{ 4442{
4073 clear_pending (EV_A_ (W)w); 4443 clear_pending (EV_A_ (W)w);
4074 if (expect_false (!ev_is_active (w))) 4444 if (expect_false (!ev_is_active (w)))
4075 return; 4445 return;
4076 4446
… …
4086} 4456}
4087#endif 4457#endif
4088 4458
4089#if EV_FORK_ENABLE 4459#if EV_FORK_ENABLE
4090void 4460void
4091ev_fork_start (EV_P_ ev_fork *w) 4461ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4092{ 4462{
4093 if (expect_false (ev_is_active (w))) 4463 if (expect_false (ev_is_active (w)))
4094 return; 4464 return;
4095 4465
4096 EV_FREQUENT_CHECK; 4466 EV_FREQUENT_CHECK;
… …
4101 4471
4102 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
4103} 4473}
4104 4474
4105void 4475void
4106ev_fork_stop (EV_P_ ev_fork *w) 4476ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4107{ 4477{
4108 clear_pending (EV_A_ (W)w); 4478 clear_pending (EV_A_ (W)w);
4109 if (expect_false (!ev_is_active (w))) 4479 if (expect_false (!ev_is_active (w)))
4110 return; 4480 return;
4111 4481
… …
4124} 4494}
4125#endif 4495#endif
4126 4496
4127#if EV_CLEANUP_ENABLE 4497#if EV_CLEANUP_ENABLE
4128void 4498void
4129ev_cleanup_start (EV_P_ ev_cleanup *w) 4499ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4130{ 4500{
4131 if (expect_false (ev_is_active (w))) 4501 if (expect_false (ev_is_active (w)))
4132 return; 4502 return;
4133 4503
4134 EV_FREQUENT_CHECK; 4504 EV_FREQUENT_CHECK;
… …
4141 ev_unref (EV_A); 4511 ev_unref (EV_A);
4142 EV_FREQUENT_CHECK; 4512 EV_FREQUENT_CHECK;
4143} 4513}
4144 4514
4145void 4515void
4146ev_cleanup_stop (EV_P_ ev_cleanup *w) 4516ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4147{ 4517{
4148 clear_pending (EV_A_ (W)w); 4518 clear_pending (EV_A_ (W)w);
4149 if (expect_false (!ev_is_active (w))) 4519 if (expect_false (!ev_is_active (w)))
4150 return; 4520 return;
4151 4521
… …
4165} 4535}
4166#endif 4536#endif
4167 4537
4168#if EV_ASYNC_ENABLE 4538#if EV_ASYNC_ENABLE
4169void 4539void
4170ev_async_start (EV_P_ ev_async *w) 4540ev_async_start (EV_P_ ev_async *w) EV_THROW
4171{ 4541{
4172 if (expect_false (ev_is_active (w))) 4542 if (expect_false (ev_is_active (w)))
4173 return; 4543 return;
4174 4544
4175 w->sent = 0; 4545 w->sent = 0;
… …
4184 4554
4185 EV_FREQUENT_CHECK; 4555 EV_FREQUENT_CHECK;
4186} 4556}
4187 4557
4188void 4558void
4189ev_async_stop (EV_P_ ev_async *w) 4559ev_async_stop (EV_P_ ev_async *w) EV_THROW
4190{ 4560{
4191 clear_pending (EV_A_ (W)w); 4561 clear_pending (EV_A_ (W)w);
4192 if (expect_false (!ev_is_active (w))) 4562 if (expect_false (!ev_is_active (w)))
4193 return; 4563 return;
4194 4564
… …
4205 4575
4206 EV_FREQUENT_CHECK; 4576 EV_FREQUENT_CHECK;
4207} 4577}
4208 4578
4209void 4579void
4210ev_async_send (EV_P_ ev_async *w) 4580ev_async_send (EV_P_ ev_async *w) EV_THROW
4211{ 4581{
4212 w->sent = 1; 4582 w->sent = 1;
4213 evpipe_write (EV_A_ &async_pending); 4583 evpipe_write (EV_A_ &async_pending);
4214} 4584}
4215#endif 4585#endif
… …
4252 4622
4253 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4623 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4254} 4624}
4255 4625
4256void 4626void
4257ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4627ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4258{ 4628{
4259 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4629 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4260 4630
4261 if (expect_false (!once)) 4631 if (expect_false (!once))
4262 { 4632 {
… …
4284 4654
4285/*****************************************************************************/ 4655/*****************************************************************************/
4286 4656
4287#if EV_WALK_ENABLE 4657#if EV_WALK_ENABLE
4288void ecb_cold 4658void ecb_cold
4289ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4659ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4290{ 4660{
4291 int i, j; 4661 int i, j;
4292 ev_watcher_list *wl, *wn; 4662 ev_watcher_list *wl, *wn;
4293 4663
4294 if (types & (EV_IO | EV_EMBED)) 4664 if (types & (EV_IO | EV_EMBED))
… …
4400 4770
4401#if EV_MULTIPLICITY 4771#if EV_MULTIPLICITY
4402 #include "ev_wrap.h" 4772 #include "ev_wrap.h"
4403#endif 4773#endif
4404 4774
4405EV_CPP(})
4406

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