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Comparing libev/ev.c (file contents):
Revision 1.391 by root, Thu Aug 4 13:57:16 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 #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
544 #define ECB_MEMORY_FENCE_RELEASE do { } while (0)
545#endif 586#endif
546 587
547#ifndef ECB_MEMORY_FENCE 588#ifndef ECB_MEMORY_FENCE
548 #if ECB_GCC_VERSION(2,5) 589 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
549 #if __x86 590 #if __i386 || __i386__
550 #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")
551 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 592 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 593 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553 #elif __amd64 594 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 595 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
555 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 596 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
556 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 597 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
598 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
600 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
601 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
603 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
604 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
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")
557 #endif 621 #endif
558 #endif 622 #endif
559#endif 623#endif
560 624
561#ifndef ECB_MEMORY_FENCE 625#ifndef ECB_MEMORY_FENCE
562 #if ECB_GCC_VERSION(4,4) 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
639 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
563 #define ECB_MEMORY_FENCE __sync_synchronize () 640 #define ECB_MEMORY_FENCE __sync_synchronize ()
564 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
565 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
566 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 641 #elif _MSC_VER >= 1400 /* VC++ 2005 */
567 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 642 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
568 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 643 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
569 #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 */
570 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 645 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
571 #elif defined(_WIN32) 646 #elif defined _WIN32
572 #include <WinNT.h> 647 #include <WinNT.h>
573 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 648 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
574 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 649 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
575 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 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 ()
576 #endif 656 #endif
577#endif 657#endif
578 658
579#ifndef ECB_MEMORY_FENCE 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)
671 #endif
672#endif
673
674#ifndef ECB_MEMORY_FENCE
675 #if !ECB_AVOID_PTHREADS
580 /* 676 /*
581 * if you get undefined symbol references to pthread_mutex_lock, 677 * if you get undefined symbol references to pthread_mutex_lock,
582 * or failure to find pthread.h, then you should implement 678 * or failure to find pthread.h, then you should implement
583 * the ECB_MEMORY_FENCE operations for your cpu/compiler 679 * the ECB_MEMORY_FENCE operations for your cpu/compiler
584 * OR provide pthread.h and link against the posix thread library 680 * OR provide pthread.h and link against the posix thread library
585 * of your system. 681 * of your system.
586 */ 682 */
587 #include <pthread.h> 683 #include <pthread.h>
588 #define ECB_NEEDS_PTHREADS 1 684 #define ECB_NEEDS_PTHREADS 1
589 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 685 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
590 686
591 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 687 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
592 #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)
689 #endif
690#endif
691
692#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
593 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 693 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
694#endif
695
696#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
594 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 697 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
595#endif 698#endif
596 699
597/*****************************************************************************/ 700/*****************************************************************************/
598
599#define ECB_C99 (__STDC_VERSION__ >= 199901L)
600 701
601#if __cplusplus 702#if __cplusplus
602 #define ecb_inline static inline 703 #define ecb_inline static inline
603#elif ECB_GCC_VERSION(2,5) 704#elif ECB_GCC_VERSION(2,5)
604 #define ecb_inline static __inline__ 705 #define ecb_inline static __inline__
… …
643#elif ECB_GCC_VERSION(3,0) 744#elif ECB_GCC_VERSION(3,0)
644 #define ecb_decltype(x) __typeof(x) 745 #define ecb_decltype(x) __typeof(x)
645#endif 746#endif
646 747
647#define ecb_noinline ecb_attribute ((__noinline__)) 748#define ecb_noinline ecb_attribute ((__noinline__))
648#define ecb_noreturn ecb_attribute ((__noreturn__))
649#define ecb_unused ecb_attribute ((__unused__)) 749#define ecb_unused ecb_attribute ((__unused__))
650#define ecb_const ecb_attribute ((__const__)) 750#define ecb_const ecb_attribute ((__const__))
651#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
652 758
653#if ECB_GCC_VERSION(4,3) 759#if ECB_GCC_VERSION(4,3)
654 #define ecb_artificial ecb_attribute ((__artificial__)) 760 #define ecb_artificial ecb_attribute ((__artificial__))
655 #define ecb_hot ecb_attribute ((__hot__)) 761 #define ecb_hot ecb_attribute ((__hot__))
656 #define ecb_cold ecb_attribute ((__cold__)) 762 #define ecb_cold ecb_attribute ((__cold__))
… …
747 853
748 return r + ecb_ld32 (x); 854 return r + ecb_ld32 (x);
749 } 855 }
750#endif 856#endif
751 857
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
752/* popcount64 is only available on 64 bit cpus as gcc builtin */ 893/* popcount64 is only available on 64 bit cpus as gcc builtin */
753/* so for this version we are lazy */ 894/* so for this version we are lazy */
754ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 895ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
755ecb_function_ int 896ecb_function_ int
756ecb_popcount64 (uint64_t x) 897ecb_popcount64 (uint64_t x)
… …
805 946
806#if ECB_GCC_VERSION(4,5) 947#if ECB_GCC_VERSION(4,5)
807 #define ecb_unreachable() __builtin_unreachable () 948 #define ecb_unreachable() __builtin_unreachable ()
808#else 949#else
809 /* 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 :/ */
810 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 951 ecb_inline void ecb_unreachable (void) ecb_noreturn;
811 ecb_function_ void ecb_unreachable (void) { } 952 ecb_inline void ecb_unreachable (void) { }
812#endif 953#endif
813 954
814/* try to tell the compiler that some condition is definitely true */ 955/* try to tell the compiler that some condition is definitely true */
815#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 956#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
816 957
817ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 958ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
818ecb_function_ unsigned char 959ecb_inline unsigned char
819ecb_byteorder_helper (void) 960ecb_byteorder_helper (void)
820{ 961{
821 const uint32_t u = 0x11223344; 962 /* the union code still generates code under pressure in gcc, */
822 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
823} 982}
824 983
825ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 984ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
826ecb_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; }
827ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 986ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
828ecb_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; }
829 988
830#if ECB_GCC_VERSION(3,0) || ECB_C99 989#if ECB_GCC_VERSION(3,0) || ECB_C99
831 #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))
832#else 991#else
833 #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))
834#endif 1009#endif
835 1010
836#if ecb_cplusplus_does_not_suck 1011#if ecb_cplusplus_does_not_suck
837 /* 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) */
838 template<typename T, int N> 1013 template<typename T, int N>
… …
842 } 1017 }
843#else 1018#else
844 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1019 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
845#endif 1020#endif
846 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
847#endif 1189#endif
848 1190
849/* ECB.H END */ 1191/* ECB.H END */
1192
1193#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1194/* if your architecture doesn't need memory fences, e.g. because it is
1195 * single-cpu/core, or if you use libev in a project that doesn't use libev
1196 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1197 * libev, in which cases the memory fences become nops.
1198 * alternatively, you can remove this #error and link against libpthread,
1199 * which will then provide the memory fences.
1200 */
1201# error "memory fences not defined for your architecture, please report"
1202#endif
1203
1204#ifndef ECB_MEMORY_FENCE
1205# define ECB_MEMORY_FENCE do { } while (0)
1206# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1207# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1208#endif
850 1209
851#define expect_false(cond) ecb_expect_false (cond) 1210#define expect_false(cond) ecb_expect_false (cond)
852#define expect_true(cond) ecb_expect_true (cond) 1211#define expect_true(cond) ecb_expect_true (cond)
853#define noinline ecb_noinline 1212#define noinline ecb_noinline
854 1213
… …
1000{ 1359{
1001 write (STDERR_FILENO, msg, strlen (msg)); 1360 write (STDERR_FILENO, msg, strlen (msg));
1002} 1361}
1003#endif 1362#endif
1004 1363
1005static void (*syserr_cb)(const char *msg); 1364static void (*syserr_cb)(const char *msg) EV_THROW;
1006 1365
1007void ecb_cold 1366void ecb_cold
1008ev_set_syserr_cb (void (*cb)(const char *msg)) 1367ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1009{ 1368{
1010 syserr_cb = cb; 1369 syserr_cb = cb;
1011} 1370}
1012 1371
1013static void noinline ecb_cold 1372static void noinline ecb_cold
… …
1031 abort (); 1390 abort ();
1032 } 1391 }
1033} 1392}
1034 1393
1035static void * 1394static void *
1036ev_realloc_emul (void *ptr, long size) 1395ev_realloc_emul (void *ptr, long size) EV_THROW
1037{ 1396{
1038#if __GLIBC__
1039 return realloc (ptr, size);
1040#else
1041 /* some systems, notably openbsd and darwin, fail to properly 1397 /* some systems, notably openbsd and darwin, fail to properly
1042 * 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
1043 * 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.
1044 */ 1402 */
1045 1403
1046 if (size) 1404 if (size)
1047 return realloc (ptr, size); 1405 return realloc (ptr, size);
1048 1406
1049 free (ptr); 1407 free (ptr);
1050 return 0; 1408 return 0;
1051#endif
1052} 1409}
1053 1410
1054static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1411static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1055 1412
1056void ecb_cold 1413void ecb_cold
1057ev_set_allocator (void *(*cb)(void *ptr, long size)) 1414ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1058{ 1415{
1059 alloc = cb; 1416 alloc = cb;
1060} 1417}
1061 1418
1062inline_speed void * 1419inline_speed void *
… …
1150 #undef VAR 1507 #undef VAR
1151 }; 1508 };
1152 #include "ev_wrap.h" 1509 #include "ev_wrap.h"
1153 1510
1154 static struct ev_loop default_loop_struct; 1511 static struct ev_loop default_loop_struct;
1155 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 */
1156 1513
1157#else 1514#else
1158 1515
1159 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 */
1160 #define VAR(name,decl) static decl; 1517 #define VAR(name,decl) static decl;
1161 #include "ev_vars.h" 1518 #include "ev_vars.h"
1162 #undef VAR 1519 #undef VAR
1163 1520
1164 static int ev_default_loop_ptr; 1521 static int ev_default_loop_ptr;
… …
1179 1536
1180/*****************************************************************************/ 1537/*****************************************************************************/
1181 1538
1182#ifndef EV_HAVE_EV_TIME 1539#ifndef EV_HAVE_EV_TIME
1183ev_tstamp 1540ev_tstamp
1184ev_time (void) 1541ev_time (void) EV_THROW
1185{ 1542{
1186#if EV_USE_REALTIME 1543#if EV_USE_REALTIME
1187 if (expect_true (have_realtime)) 1544 if (expect_true (have_realtime))
1188 { 1545 {
1189 struct timespec ts; 1546 struct timespec ts;
… …
1213 return ev_time (); 1570 return ev_time ();
1214} 1571}
1215 1572
1216#if EV_MULTIPLICITY 1573#if EV_MULTIPLICITY
1217ev_tstamp 1574ev_tstamp
1218ev_now (EV_P) 1575ev_now (EV_P) EV_THROW
1219{ 1576{
1220 return ev_rt_now; 1577 return ev_rt_now;
1221} 1578}
1222#endif 1579#endif
1223 1580
1224void 1581void
1225ev_sleep (ev_tstamp delay) 1582ev_sleep (ev_tstamp delay) EV_THROW
1226{ 1583{
1227 if (delay > 0.) 1584 if (delay > 0.)
1228 { 1585 {
1229#if EV_USE_NANOSLEEP 1586#if EV_USE_NANOSLEEP
1230 struct timespec ts; 1587 struct timespec ts;
1231 1588
1232 EV_TS_SET (ts, delay); 1589 EV_TS_SET (ts, delay);
1233 nanosleep (&ts, 0); 1590 nanosleep (&ts, 0);
1234#elif defined(_WIN32) 1591#elif defined _WIN32
1235 Sleep ((unsigned long)(delay * 1e3)); 1592 Sleep ((unsigned long)(delay * 1e3));
1236#else 1593#else
1237 struct timeval tv; 1594 struct timeval tv;
1238 1595
1239 /* 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 */
… …
1258 1615
1259 do 1616 do
1260 ncur <<= 1; 1617 ncur <<= 1;
1261 while (cnt > ncur); 1618 while (cnt > ncur);
1262 1619
1263 /* 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 */
1264 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1621 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1265 { 1622 {
1266 ncur *= elem; 1623 ncur *= elem;
1267 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);
1268 ncur = ncur - sizeof (void *) * 4; 1625 ncur = ncur - sizeof (void *) * 4;
… …
1311pendingcb (EV_P_ ev_prepare *w, int revents) 1668pendingcb (EV_P_ ev_prepare *w, int revents)
1312{ 1669{
1313} 1670}
1314 1671
1315void noinline 1672void noinline
1316ev_feed_event (EV_P_ void *w, int revents) 1673ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1317{ 1674{
1318 W w_ = (W)w; 1675 W w_ = (W)w;
1319 int pri = ABSPRI (w_); 1676 int pri = ABSPRI (w_);
1320 1677
1321 if (expect_false (w_->pending)) 1678 if (expect_false (w_->pending))
… …
1325 w_->pending = ++pendingcnt [pri]; 1682 w_->pending = ++pendingcnt [pri];
1326 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1683 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1327 pendings [pri][w_->pending - 1].w = w_; 1684 pendings [pri][w_->pending - 1].w = w_;
1328 pendings [pri][w_->pending - 1].events = revents; 1685 pendings [pri][w_->pending - 1].events = revents;
1329 } 1686 }
1687
1688 pendingpri = NUMPRI - 1;
1330} 1689}
1331 1690
1332inline_speed void 1691inline_speed void
1333feed_reverse (EV_P_ W w) 1692feed_reverse (EV_P_ W w)
1334{ 1693{
… …
1380 if (expect_true (!anfd->reify)) 1739 if (expect_true (!anfd->reify))
1381 fd_event_nocheck (EV_A_ fd, revents); 1740 fd_event_nocheck (EV_A_ fd, revents);
1382} 1741}
1383 1742
1384void 1743void
1385ev_feed_fd_event (EV_P_ int fd, int revents) 1744ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1386{ 1745{
1387 if (fd >= 0 && fd < anfdmax) 1746 if (fd >= 0 && fd < anfdmax)
1388 fd_event_nocheck (EV_A_ fd, revents); 1747 fd_event_nocheck (EV_A_ fd, revents);
1389} 1748}
1390 1749
… …
1709static void noinline ecb_cold 2068static void noinline ecb_cold
1710evpipe_init (EV_P) 2069evpipe_init (EV_P)
1711{ 2070{
1712 if (!ev_is_active (&pipe_w)) 2071 if (!ev_is_active (&pipe_w))
1713 { 2072 {
2073 int fds [2];
2074
1714# if EV_USE_EVENTFD 2075# if EV_USE_EVENTFD
2076 fds [0] = -1;
1715 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2077 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1716 if (evfd < 0 && errno == EINVAL) 2078 if (fds [1] < 0 && errno == EINVAL)
1717 evfd = eventfd (0, 0); 2079 fds [1] = eventfd (0, 0);
1718 2080
1719 if (evfd >= 0) 2081 if (fds [1] < 0)
2082# endif
1720 { 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
1721 evpipe [0] = -1; 2092 evpipe [0] = fds [0];
1722 fd_intern (evfd); /* doing it twice doesn't hurt */ 2093
1723 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));
1724 } 2142 }
1725 else 2143 else
1726# endif 2144#endif
1727 { 2145 {
1728 while (pipe (evpipe)) 2146#ifdef _WIN32
1729 ev_syserr ("(libev) error creating signal/async pipe"); 2147 WSABUF buf;
1730 2148 DWORD sent;
1731 fd_intern (evpipe [0]); 2149 buf.buf = &buf;
1732 fd_intern (evpipe [1]); 2150 buf.len = 1;
1733 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2151 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1734 } 2152#else
1735
1736 ev_io_start (EV_A_ &pipe_w);
1737 ev_unref (EV_A); /* watcher should not keep loop alive */
1738 }
1739}
1740
1741inline_speed void
1742evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1743{
1744 if (expect_true (*flag))
1745 return;
1746
1747 *flag = 1;
1748
1749 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1750
1751 pipe_write_skipped = 1;
1752
1753 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1754
1755 if (pipe_write_wanted)
1756 {
1757 int old_errno;
1758
1759 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1760
1761 old_errno = errno; /* save errno because write will clobber it */
1762
1763#if EV_USE_EVENTFD
1764 if (evfd >= 0)
1765 {
1766 uint64_t counter = 1;
1767 write (evfd, &counter, sizeof (uint64_t));
1768 }
1769 else
1770#endif
1771 {
1772 /* win32 people keep sending patches that change this write() to send() */
1773 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1774 /* so when you think this write should be a send instead, please find out */
1775 /* where your send() is from - it's definitely not the microsoft send, and */
1776 /* tell me. thank you. */
1777 write (evpipe [1], &(evpipe [1]), 1); 2153 write (evpipe [1], &(evpipe [1]), 1);
2154#endif
1778 } 2155 }
1779 2156
1780 errno = old_errno; 2157 errno = old_errno;
1781 } 2158 }
1782} 2159}
… …
1789 int i; 2166 int i;
1790 2167
1791 if (revents & EV_READ) 2168 if (revents & EV_READ)
1792 { 2169 {
1793#if EV_USE_EVENTFD 2170#if EV_USE_EVENTFD
1794 if (evfd >= 0) 2171 if (evpipe [0] < 0)
1795 { 2172 {
1796 uint64_t counter; 2173 uint64_t counter;
1797 read (evfd, &counter, sizeof (uint64_t)); 2174 read (evpipe [1], &counter, sizeof (uint64_t));
1798 } 2175 }
1799 else 2176 else
1800#endif 2177#endif
1801 { 2178 {
1802 char dummy; 2179 char dummy[4];
1803 /* 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
1804 read (evpipe [0], &dummy, 1); 2188 read (evpipe [0], &dummy, sizeof (dummy));
2189#endif
1805 } 2190 }
1806 } 2191 }
1807 2192
1808 pipe_write_skipped = 0; 2193 pipe_write_skipped = 0;
2194
2195 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1809 2196
1810#if EV_SIGNAL_ENABLE 2197#if EV_SIGNAL_ENABLE
1811 if (sig_pending) 2198 if (sig_pending)
1812 { 2199 {
1813 sig_pending = 0; 2200 sig_pending = 0;
2201
2202 ECB_MEMORY_FENCE;
1814 2203
1815 for (i = EV_NSIG - 1; i--; ) 2204 for (i = EV_NSIG - 1; i--; )
1816 if (expect_false (signals [i].pending)) 2205 if (expect_false (signals [i].pending))
1817 ev_feed_signal_event (EV_A_ i + 1); 2206 ev_feed_signal_event (EV_A_ i + 1);
1818 } 2207 }
… …
1820 2209
1821#if EV_ASYNC_ENABLE 2210#if EV_ASYNC_ENABLE
1822 if (async_pending) 2211 if (async_pending)
1823 { 2212 {
1824 async_pending = 0; 2213 async_pending = 0;
2214
2215 ECB_MEMORY_FENCE;
1825 2216
1826 for (i = asynccnt; i--; ) 2217 for (i = asynccnt; i--; )
1827 if (asyncs [i]->sent) 2218 if (asyncs [i]->sent)
1828 { 2219 {
1829 asyncs [i]->sent = 0; 2220 asyncs [i]->sent = 0;
2221 ECB_MEMORY_FENCE_RELEASE;
1830 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2222 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1831 } 2223 }
1832 } 2224 }
1833#endif 2225#endif
1834} 2226}
1835 2227
1836/*****************************************************************************/ 2228/*****************************************************************************/
1837 2229
1838void 2230void
1839ev_feed_signal (int signum) 2231ev_feed_signal (int signum) EV_THROW
1840{ 2232{
1841#if EV_MULTIPLICITY 2233#if EV_MULTIPLICITY
2234 ECB_MEMORY_FENCE_ACQUIRE;
1842 EV_P = signals [signum - 1].loop; 2235 EV_P = signals [signum - 1].loop;
1843 2236
1844 if (!EV_A) 2237 if (!EV_A)
1845 return; 2238 return;
1846#endif 2239#endif
1847 2240
1848 if (!ev_active (&pipe_w))
1849 return;
1850
1851 signals [signum - 1].pending = 1; 2241 signals [signum - 1].pending = 1;
1852 evpipe_write (EV_A_ &sig_pending); 2242 evpipe_write (EV_A_ &sig_pending);
1853} 2243}
1854 2244
1855static void 2245static void
… …
1861 2251
1862 ev_feed_signal (signum); 2252 ev_feed_signal (signum);
1863} 2253}
1864 2254
1865void noinline 2255void noinline
1866ev_feed_signal_event (EV_P_ int signum) 2256ev_feed_signal_event (EV_P_ int signum) EV_THROW
1867{ 2257{
1868 WL w; 2258 WL w;
1869 2259
1870 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2260 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1871 return; 2261 return;
1872 2262
1873 --signum; 2263 --signum;
1874 2264
1875#if EV_MULTIPLICITY 2265#if EV_MULTIPLICITY
… …
1879 if (expect_false (signals [signum].loop != EV_A)) 2269 if (expect_false (signals [signum].loop != EV_A))
1880 return; 2270 return;
1881#endif 2271#endif
1882 2272
1883 signals [signum].pending = 0; 2273 signals [signum].pending = 0;
2274 ECB_MEMORY_FENCE_RELEASE;
1884 2275
1885 for (w = signals [signum].head; w; w = w->next) 2276 for (w = signals [signum].head; w; w = w->next)
1886 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2277 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1887} 2278}
1888 2279
… …
1987#if EV_USE_SELECT 2378#if EV_USE_SELECT
1988# include "ev_select.c" 2379# include "ev_select.c"
1989#endif 2380#endif
1990 2381
1991int ecb_cold 2382int ecb_cold
1992ev_version_major (void) 2383ev_version_major (void) EV_THROW
1993{ 2384{
1994 return EV_VERSION_MAJOR; 2385 return EV_VERSION_MAJOR;
1995} 2386}
1996 2387
1997int ecb_cold 2388int ecb_cold
1998ev_version_minor (void) 2389ev_version_minor (void) EV_THROW
1999{ 2390{
2000 return EV_VERSION_MINOR; 2391 return EV_VERSION_MINOR;
2001} 2392}
2002 2393
2003/* 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 */
… …
2011 || getgid () != getegid (); 2402 || getgid () != getegid ();
2012#endif 2403#endif
2013} 2404}
2014 2405
2015unsigned int ecb_cold 2406unsigned int ecb_cold
2016ev_supported_backends (void) 2407ev_supported_backends (void) EV_THROW
2017{ 2408{
2018 unsigned int flags = 0; 2409 unsigned int flags = 0;
2019 2410
2020 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2411 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2021 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2412 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2025 2416
2026 return flags; 2417 return flags;
2027} 2418}
2028 2419
2029unsigned int ecb_cold 2420unsigned int ecb_cold
2030ev_recommended_backends (void) 2421ev_recommended_backends (void) EV_THROW
2031{ 2422{
2032 unsigned int flags = ev_supported_backends (); 2423 unsigned int flags = ev_supported_backends ();
2033 2424
2034#ifndef __NetBSD__ 2425#ifndef __NetBSD__
2035 /* kqueue is borked on everything but netbsd apparently */ 2426 /* kqueue is borked on everything but netbsd apparently */
… …
2047 2438
2048 return flags; 2439 return flags;
2049} 2440}
2050 2441
2051unsigned int ecb_cold 2442unsigned int ecb_cold
2052ev_embeddable_backends (void) 2443ev_embeddable_backends (void) EV_THROW
2053{ 2444{
2054 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2445 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2055 2446
2056 /* 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 */
2057 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 */
… …
2059 2450
2060 return flags; 2451 return flags;
2061} 2452}
2062 2453
2063unsigned int 2454unsigned int
2064ev_backend (EV_P) 2455ev_backend (EV_P) EV_THROW
2065{ 2456{
2066 return backend; 2457 return backend;
2067} 2458}
2068 2459
2069#if EV_FEATURE_API 2460#if EV_FEATURE_API
2070unsigned int 2461unsigned int
2071ev_iteration (EV_P) 2462ev_iteration (EV_P) EV_THROW
2072{ 2463{
2073 return loop_count; 2464 return loop_count;
2074} 2465}
2075 2466
2076unsigned int 2467unsigned int
2077ev_depth (EV_P) 2468ev_depth (EV_P) EV_THROW
2078{ 2469{
2079 return loop_depth; 2470 return loop_depth;
2080} 2471}
2081 2472
2082void 2473void
2083ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2474ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2084{ 2475{
2085 io_blocktime = interval; 2476 io_blocktime = interval;
2086} 2477}
2087 2478
2088void 2479void
2089ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2480ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2090{ 2481{
2091 timeout_blocktime = interval; 2482 timeout_blocktime = interval;
2092} 2483}
2093 2484
2094void 2485void
2095ev_set_userdata (EV_P_ void *data) 2486ev_set_userdata (EV_P_ void *data) EV_THROW
2096{ 2487{
2097 userdata = data; 2488 userdata = data;
2098} 2489}
2099 2490
2100void * 2491void *
2101ev_userdata (EV_P) 2492ev_userdata (EV_P) EV_THROW
2102{ 2493{
2103 return userdata; 2494 return userdata;
2104} 2495}
2105 2496
2106void 2497void
2107ev_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
2108{ 2499{
2109 invoke_cb = invoke_pending_cb; 2500 invoke_cb = invoke_pending_cb;
2110} 2501}
2111 2502
2112void 2503void
2113ev_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
2114{ 2505{
2115 release_cb = release; 2506 release_cb = release;
2116 acquire_cb = acquire; 2507 acquire_cb = acquire;
2117} 2508}
2118#endif 2509#endif
2119 2510
2120/* initialise a loop structure, must be zero-initialised */ 2511/* initialise a loop structure, must be zero-initialised */
2121static void noinline ecb_cold 2512static void noinline ecb_cold
2122loop_init (EV_P_ unsigned int flags) 2513loop_init (EV_P_ unsigned int flags) EV_THROW
2123{ 2514{
2124 if (!backend) 2515 if (!backend)
2125 { 2516 {
2126 origflags = flags; 2517 origflags = flags;
2127 2518
… …
2172#if EV_ASYNC_ENABLE 2563#if EV_ASYNC_ENABLE
2173 async_pending = 0; 2564 async_pending = 0;
2174#endif 2565#endif
2175 pipe_write_skipped = 0; 2566 pipe_write_skipped = 0;
2176 pipe_write_wanted = 0; 2567 pipe_write_wanted = 0;
2568 evpipe [0] = -1;
2569 evpipe [1] = -1;
2177#if EV_USE_INOTIFY 2570#if EV_USE_INOTIFY
2178 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2571 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2179#endif 2572#endif
2180#if EV_USE_SIGNALFD 2573#if EV_USE_SIGNALFD
2181 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2574 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2232 EV_INVOKE_PENDING; 2625 EV_INVOKE_PENDING;
2233 } 2626 }
2234#endif 2627#endif
2235 2628
2236#if EV_CHILD_ENABLE 2629#if EV_CHILD_ENABLE
2237 if (ev_is_active (&childev)) 2630 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2238 { 2631 {
2239 ev_ref (EV_A); /* child watcher */ 2632 ev_ref (EV_A); /* child watcher */
2240 ev_signal_stop (EV_A_ &childev); 2633 ev_signal_stop (EV_A_ &childev);
2241 } 2634 }
2242#endif 2635#endif
… …
2244 if (ev_is_active (&pipe_w)) 2637 if (ev_is_active (&pipe_w))
2245 { 2638 {
2246 /*ev_ref (EV_A);*/ 2639 /*ev_ref (EV_A);*/
2247 /*ev_io_stop (EV_A_ &pipe_w);*/ 2640 /*ev_io_stop (EV_A_ &pipe_w);*/
2248 2641
2249#if EV_USE_EVENTFD
2250 if (evfd >= 0)
2251 close (evfd);
2252#endif
2253
2254 if (evpipe [0] >= 0)
2255 {
2256 EV_WIN32_CLOSE_FD (evpipe [0]); 2642 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2257 EV_WIN32_CLOSE_FD (evpipe [1]); 2643 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2258 }
2259 } 2644 }
2260 2645
2261#if EV_USE_SIGNALFD 2646#if EV_USE_SIGNALFD
2262 if (ev_is_active (&sigfd_w)) 2647 if (ev_is_active (&sigfd_w))
2263 close (sigfd); 2648 close (sigfd);
… …
2349#endif 2734#endif
2350#if EV_USE_INOTIFY 2735#if EV_USE_INOTIFY
2351 infy_fork (EV_A); 2736 infy_fork (EV_A);
2352#endif 2737#endif
2353 2738
2739#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2354 if (ev_is_active (&pipe_w)) 2740 if (ev_is_active (&pipe_w))
2355 { 2741 {
2356 /* 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 */
2357 2743
2358 ev_ref (EV_A); 2744 ev_ref (EV_A);
2359 ev_io_stop (EV_A_ &pipe_w); 2745 ev_io_stop (EV_A_ &pipe_w);
2360 2746
2361#if EV_USE_EVENTFD
2362 if (evfd >= 0)
2363 close (evfd);
2364#endif
2365
2366 if (evpipe [0] >= 0) 2747 if (evpipe [0] >= 0)
2367 {
2368 EV_WIN32_CLOSE_FD (evpipe [0]); 2748 EV_WIN32_CLOSE_FD (evpipe [0]);
2369 EV_WIN32_CLOSE_FD (evpipe [1]);
2370 }
2371 2749
2372#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2373 evpipe_init (EV_A); 2750 evpipe_init (EV_A);
2374 /* now iterate over everything, in case we missed something */ 2751 /* iterate over everything, in case we missed something before */
2375 pipecb (EV_A_ &pipe_w, EV_READ); 2752 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2376#endif
2377 } 2753 }
2754#endif
2378 2755
2379 postfork = 0; 2756 postfork = 0;
2380} 2757}
2381 2758
2382#if EV_MULTIPLICITY 2759#if EV_MULTIPLICITY
2383 2760
2384struct ev_loop * ecb_cold 2761struct ev_loop * ecb_cold
2385ev_loop_new (unsigned int flags) 2762ev_loop_new (unsigned int flags) EV_THROW
2386{ 2763{
2387 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2764 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2388 2765
2389 memset (EV_A, 0, sizeof (struct ev_loop)); 2766 memset (EV_A, 0, sizeof (struct ev_loop));
2390 loop_init (EV_A_ flags); 2767 loop_init (EV_A_ flags);
… …
2434} 2811}
2435#endif 2812#endif
2436 2813
2437#if EV_FEATURE_API 2814#if EV_FEATURE_API
2438void ecb_cold 2815void ecb_cold
2439ev_verify (EV_P) 2816ev_verify (EV_P) EV_THROW
2440{ 2817{
2441#if EV_VERIFY 2818#if EV_VERIFY
2442 int i; 2819 int i;
2443 WL w; 2820 WL w, w2;
2444 2821
2445 assert (activecnt >= -1); 2822 assert (activecnt >= -1);
2446 2823
2447 assert (fdchangemax >= fdchangecnt); 2824 assert (fdchangemax >= fdchangecnt);
2448 for (i = 0; i < fdchangecnt; ++i) 2825 for (i = 0; i < fdchangecnt; ++i)
2449 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2826 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2450 2827
2451 assert (anfdmax >= 0); 2828 assert (anfdmax >= 0);
2452 for (i = 0; i < anfdmax; ++i) 2829 for (i = 0; i < anfdmax; ++i)
2830 {
2831 int j = 0;
2832
2453 for (w = anfds [i].head; w; w = w->next) 2833 for (w = w2 = anfds [i].head; w; w = w->next)
2454 { 2834 {
2455 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
2456 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));
2457 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));
2458 } 2845 }
2846 }
2459 2847
2460 assert (timermax >= timercnt); 2848 assert (timermax >= timercnt);
2461 verify_heap (EV_A_ timers, timercnt); 2849 verify_heap (EV_A_ timers, timercnt);
2462 2850
2463#if EV_PERIODIC_ENABLE 2851#if EV_PERIODIC_ENABLE
… …
2513#if EV_MULTIPLICITY 2901#if EV_MULTIPLICITY
2514struct ev_loop * ecb_cold 2902struct ev_loop * ecb_cold
2515#else 2903#else
2516int 2904int
2517#endif 2905#endif
2518ev_default_loop (unsigned int flags) 2906ev_default_loop (unsigned int flags) EV_THROW
2519{ 2907{
2520 if (!ev_default_loop_ptr) 2908 if (!ev_default_loop_ptr)
2521 { 2909 {
2522#if EV_MULTIPLICITY 2910#if EV_MULTIPLICITY
2523 EV_P = ev_default_loop_ptr = &default_loop_struct; 2911 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2542 2930
2543 return ev_default_loop_ptr; 2931 return ev_default_loop_ptr;
2544} 2932}
2545 2933
2546void 2934void
2547ev_loop_fork (EV_P) 2935ev_loop_fork (EV_P) EV_THROW
2548{ 2936{
2549 postfork = 1; /* must be in line with ev_default_fork */ 2937 postfork = 1;
2550} 2938}
2551 2939
2552/*****************************************************************************/ 2940/*****************************************************************************/
2553 2941
2554void 2942void
… …
2556{ 2944{
2557 EV_CB_INVOKE ((W)w, revents); 2945 EV_CB_INVOKE ((W)w, revents);
2558} 2946}
2559 2947
2560unsigned int 2948unsigned int
2561ev_pending_count (EV_P) 2949ev_pending_count (EV_P) EV_THROW
2562{ 2950{
2563 int pri; 2951 int pri;
2564 unsigned int count = 0; 2952 unsigned int count = 0;
2565 2953
2566 for (pri = NUMPRI; pri--; ) 2954 for (pri = NUMPRI; pri--; )
… …
2570} 2958}
2571 2959
2572void noinline 2960void noinline
2573ev_invoke_pending (EV_P) 2961ev_invoke_pending (EV_P)
2574{ 2962{
2575 int pri; 2963 pendingpri = NUMPRI;
2576 2964
2577 for (pri = NUMPRI; pri--; ) 2965 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2966 {
2967 --pendingpri;
2968
2578 while (pendingcnt [pri]) 2969 while (pendingcnt [pendingpri])
2579 { 2970 {
2580 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2971 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2581 2972
2582 p->w->pending = 0; 2973 p->w->pending = 0;
2583 EV_CB_INVOKE (p->w, p->events); 2974 EV_CB_INVOKE (p->w, p->events);
2584 EV_FREQUENT_CHECK; 2975 EV_FREQUENT_CHECK;
2585 } 2976 }
2977 }
2586} 2978}
2587 2979
2588#if EV_IDLE_ENABLE 2980#if EV_IDLE_ENABLE
2589/* make idle watchers pending. this handles the "call-idle */ 2981/* make idle watchers pending. this handles the "call-idle */
2590/* only when higher priorities are idle" logic */ 2982/* only when higher priorities are idle" logic */
… …
2680{ 3072{
2681 EV_FREQUENT_CHECK; 3073 EV_FREQUENT_CHECK;
2682 3074
2683 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3075 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2684 { 3076 {
2685 int feed_count = 0;
2686
2687 do 3077 do
2688 { 3078 {
2689 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3079 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2690 3080
2691 /*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)));*/
… …
2825 3215
2826 mn_now = ev_rt_now; 3216 mn_now = ev_rt_now;
2827 } 3217 }
2828} 3218}
2829 3219
2830void 3220int
2831ev_run (EV_P_ int flags) 3221ev_run (EV_P_ int flags)
2832{ 3222{
2833#if EV_FEATURE_API 3223#if EV_FEATURE_API
2834 ++loop_depth; 3224 ++loop_depth;
2835#endif 3225#endif
… …
2948#endif 3338#endif
2949 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3339 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2950 backend_poll (EV_A_ waittime); 3340 backend_poll (EV_A_ waittime);
2951 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3341 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2952 3342
2953 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3343 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2954 3344
3345 ECB_MEMORY_FENCE_ACQUIRE;
2955 if (pipe_write_skipped) 3346 if (pipe_write_skipped)
2956 { 3347 {
2957 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)));
2958 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3349 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2959 } 3350 }
… …
2992 loop_done = EVBREAK_CANCEL; 3383 loop_done = EVBREAK_CANCEL;
2993 3384
2994#if EV_FEATURE_API 3385#if EV_FEATURE_API
2995 --loop_depth; 3386 --loop_depth;
2996#endif 3387#endif
3388
3389 return activecnt;
2997} 3390}
2998 3391
2999void 3392void
3000ev_break (EV_P_ int how) 3393ev_break (EV_P_ int how) EV_THROW
3001{ 3394{
3002 loop_done = how; 3395 loop_done = how;
3003} 3396}
3004 3397
3005void 3398void
3006ev_ref (EV_P) 3399ev_ref (EV_P) EV_THROW
3007{ 3400{
3008 ++activecnt; 3401 ++activecnt;
3009} 3402}
3010 3403
3011void 3404void
3012ev_unref (EV_P) 3405ev_unref (EV_P) EV_THROW
3013{ 3406{
3014 --activecnt; 3407 --activecnt;
3015} 3408}
3016 3409
3017void 3410void
3018ev_now_update (EV_P) 3411ev_now_update (EV_P) EV_THROW
3019{ 3412{
3020 time_update (EV_A_ 1e100); 3413 time_update (EV_A_ 1e100);
3021} 3414}
3022 3415
3023void 3416void
3024ev_suspend (EV_P) 3417ev_suspend (EV_P) EV_THROW
3025{ 3418{
3026 ev_now_update (EV_A); 3419 ev_now_update (EV_A);
3027} 3420}
3028 3421
3029void 3422void
3030ev_resume (EV_P) 3423ev_resume (EV_P) EV_THROW
3031{ 3424{
3032 ev_tstamp mn_prev = mn_now; 3425 ev_tstamp mn_prev = mn_now;
3033 3426
3034 ev_now_update (EV_A); 3427 ev_now_update (EV_A);
3035 timers_reschedule (EV_A_ mn_now - mn_prev); 3428 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3074 w->pending = 0; 3467 w->pending = 0;
3075 } 3468 }
3076} 3469}
3077 3470
3078int 3471int
3079ev_clear_pending (EV_P_ void *w) 3472ev_clear_pending (EV_P_ void *w) EV_THROW
3080{ 3473{
3081 W w_ = (W)w; 3474 W w_ = (W)w;
3082 int pending = w_->pending; 3475 int pending = w_->pending;
3083 3476
3084 if (expect_true (pending)) 3477 if (expect_true (pending))
… …
3117} 3510}
3118 3511
3119/*****************************************************************************/ 3512/*****************************************************************************/
3120 3513
3121void noinline 3514void noinline
3122ev_io_start (EV_P_ ev_io *w) 3515ev_io_start (EV_P_ ev_io *w) EV_THROW
3123{ 3516{
3124 int fd = w->fd; 3517 int fd = w->fd;
3125 3518
3126 if (expect_false (ev_is_active (w))) 3519 if (expect_false (ev_is_active (w)))
3127 return; 3520 return;
… …
3133 3526
3134 ev_start (EV_A_ (W)w, 1); 3527 ev_start (EV_A_ (W)w, 1);
3135 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3528 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3136 wlist_add (&anfds[fd].head, (WL)w); 3529 wlist_add (&anfds[fd].head, (WL)w);
3137 3530
3531 /* common bug, apparently */
3532 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3533
3138 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);
3139 w->events &= ~EV__IOFDSET; 3535 w->events &= ~EV__IOFDSET;
3140 3536
3141 EV_FREQUENT_CHECK; 3537 EV_FREQUENT_CHECK;
3142} 3538}
3143 3539
3144void noinline 3540void noinline
3145ev_io_stop (EV_P_ ev_io *w) 3541ev_io_stop (EV_P_ ev_io *w) EV_THROW
3146{ 3542{
3147 clear_pending (EV_A_ (W)w); 3543 clear_pending (EV_A_ (W)w);
3148 if (expect_false (!ev_is_active (w))) 3544 if (expect_false (!ev_is_active (w)))
3149 return; 3545 return;
3150 3546
… …
3159 3555
3160 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
3161} 3557}
3162 3558
3163void noinline 3559void noinline
3164ev_timer_start (EV_P_ ev_timer *w) 3560ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3165{ 3561{
3166 if (expect_false (ev_is_active (w))) 3562 if (expect_false (ev_is_active (w)))
3167 return; 3563 return;
3168 3564
3169 ev_at (w) += mn_now; 3565 ev_at (w) += mn_now;
… …
3183 3579
3184 /*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));*/
3185} 3581}
3186 3582
3187void noinline 3583void noinline
3188ev_timer_stop (EV_P_ ev_timer *w) 3584ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3189{ 3585{
3190 clear_pending (EV_A_ (W)w); 3586 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 3587 if (expect_false (!ev_is_active (w)))
3192 return; 3588 return;
3193 3589
… …
3213 3609
3214 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
3215} 3611}
3216 3612
3217void noinline 3613void noinline
3218ev_timer_again (EV_P_ ev_timer *w) 3614ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3219{ 3615{
3220 EV_FREQUENT_CHECK; 3616 EV_FREQUENT_CHECK;
3617
3618 clear_pending (EV_A_ (W)w);
3221 3619
3222 if (ev_is_active (w)) 3620 if (ev_is_active (w))
3223 { 3621 {
3224 if (w->repeat) 3622 if (w->repeat)
3225 { 3623 {
… …
3238 3636
3239 EV_FREQUENT_CHECK; 3637 EV_FREQUENT_CHECK;
3240} 3638}
3241 3639
3242ev_tstamp 3640ev_tstamp
3243ev_timer_remaining (EV_P_ ev_timer *w) 3641ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3244{ 3642{
3245 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3643 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3246} 3644}
3247 3645
3248#if EV_PERIODIC_ENABLE 3646#if EV_PERIODIC_ENABLE
3249void noinline 3647void noinline
3250ev_periodic_start (EV_P_ ev_periodic *w) 3648ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3251{ 3649{
3252 if (expect_false (ev_is_active (w))) 3650 if (expect_false (ev_is_active (w)))
3253 return; 3651 return;
3254 3652
3255 if (w->reschedule_cb) 3653 if (w->reschedule_cb)
… …
3275 3673
3276 /*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));*/
3277} 3675}
3278 3676
3279void noinline 3677void noinline
3280ev_periodic_stop (EV_P_ ev_periodic *w) 3678ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3281{ 3679{
3282 clear_pending (EV_A_ (W)w); 3680 clear_pending (EV_A_ (W)w);
3283 if (expect_false (!ev_is_active (w))) 3681 if (expect_false (!ev_is_active (w)))
3284 return; 3682 return;
3285 3683
… …
3303 3701
3304 EV_FREQUENT_CHECK; 3702 EV_FREQUENT_CHECK;
3305} 3703}
3306 3704
3307void noinline 3705void noinline
3308ev_periodic_again (EV_P_ ev_periodic *w) 3706ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3309{ 3707{
3310 /* TODO: use adjustheap and recalculation */ 3708 /* TODO: use adjustheap and recalculation */
3311 ev_periodic_stop (EV_A_ w); 3709 ev_periodic_stop (EV_A_ w);
3312 ev_periodic_start (EV_A_ w); 3710 ev_periodic_start (EV_A_ w);
3313} 3711}
… …
3318#endif 3716#endif
3319 3717
3320#if EV_SIGNAL_ENABLE 3718#if EV_SIGNAL_ENABLE
3321 3719
3322void noinline 3720void noinline
3323ev_signal_start (EV_P_ ev_signal *w) 3721ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3324{ 3722{
3325 if (expect_false (ev_is_active (w))) 3723 if (expect_false (ev_is_active (w)))
3326 return; 3724 return;
3327 3725
3328 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));
… …
3330#if EV_MULTIPLICITY 3728#if EV_MULTIPLICITY
3331 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",
3332 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3730 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3333 3731
3334 signals [w->signum - 1].loop = EV_A; 3732 signals [w->signum - 1].loop = EV_A;
3733 ECB_MEMORY_FENCE_RELEASE;
3335#endif 3734#endif
3336 3735
3337 EV_FREQUENT_CHECK; 3736 EV_FREQUENT_CHECK;
3338 3737
3339#if EV_USE_SIGNALFD 3738#if EV_USE_SIGNALFD
… …
3399 3798
3400 EV_FREQUENT_CHECK; 3799 EV_FREQUENT_CHECK;
3401} 3800}
3402 3801
3403void noinline 3802void noinline
3404ev_signal_stop (EV_P_ ev_signal *w) 3803ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3405{ 3804{
3406 clear_pending (EV_A_ (W)w); 3805 clear_pending (EV_A_ (W)w);
3407 if (expect_false (!ev_is_active (w))) 3806 if (expect_false (!ev_is_active (w)))
3408 return; 3807 return;
3409 3808
… …
3440#endif 3839#endif
3441 3840
3442#if EV_CHILD_ENABLE 3841#if EV_CHILD_ENABLE
3443 3842
3444void 3843void
3445ev_child_start (EV_P_ ev_child *w) 3844ev_child_start (EV_P_ ev_child *w) EV_THROW
3446{ 3845{
3447#if EV_MULTIPLICITY 3846#if EV_MULTIPLICITY
3448 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));
3449#endif 3848#endif
3450 if (expect_false (ev_is_active (w))) 3849 if (expect_false (ev_is_active (w)))
… …
3457 3856
3458 EV_FREQUENT_CHECK; 3857 EV_FREQUENT_CHECK;
3459} 3858}
3460 3859
3461void 3860void
3462ev_child_stop (EV_P_ ev_child *w) 3861ev_child_stop (EV_P_ ev_child *w) EV_THROW
3463{ 3862{
3464 clear_pending (EV_A_ (W)w); 3863 clear_pending (EV_A_ (W)w);
3465 if (expect_false (!ev_is_active (w))) 3864 if (expect_false (!ev_is_active (w)))
3466 return; 3865 return;
3467 3866
… …
3634} 4033}
3635 4034
3636inline_size int 4035inline_size int
3637infy_newfd (void) 4036infy_newfd (void)
3638{ 4037{
3639#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4038#if defined IN_CLOEXEC && defined IN_NONBLOCK
3640 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4039 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3641 if (fd >= 0) 4040 if (fd >= 0)
3642 return fd; 4041 return fd;
3643#endif 4042#endif
3644 return inotify_init (); 4043 return inotify_init ();
… …
3719#else 4118#else
3720# define EV_LSTAT(p,b) lstat (p, b) 4119# define EV_LSTAT(p,b) lstat (p, b)
3721#endif 4120#endif
3722 4121
3723void 4122void
3724ev_stat_stat (EV_P_ ev_stat *w) 4123ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3725{ 4124{
3726 if (lstat (w->path, &w->attr) < 0) 4125 if (lstat (w->path, &w->attr) < 0)
3727 w->attr.st_nlink = 0; 4126 w->attr.st_nlink = 0;
3728 else if (!w->attr.st_nlink) 4127 else if (!w->attr.st_nlink)
3729 w->attr.st_nlink = 1; 4128 w->attr.st_nlink = 1;
… …
3768 ev_feed_event (EV_A_ w, EV_STAT); 4167 ev_feed_event (EV_A_ w, EV_STAT);
3769 } 4168 }
3770} 4169}
3771 4170
3772void 4171void
3773ev_stat_start (EV_P_ ev_stat *w) 4172ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3774{ 4173{
3775 if (expect_false (ev_is_active (w))) 4174 if (expect_false (ev_is_active (w)))
3776 return; 4175 return;
3777 4176
3778 ev_stat_stat (EV_A_ w); 4177 ev_stat_stat (EV_A_ w);
… …
3799 4198
3800 EV_FREQUENT_CHECK; 4199 EV_FREQUENT_CHECK;
3801} 4200}
3802 4201
3803void 4202void
3804ev_stat_stop (EV_P_ ev_stat *w) 4203ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3805{ 4204{
3806 clear_pending (EV_A_ (W)w); 4205 clear_pending (EV_A_ (W)w);
3807 if (expect_false (!ev_is_active (w))) 4206 if (expect_false (!ev_is_active (w)))
3808 return; 4207 return;
3809 4208
… …
3825} 4224}
3826#endif 4225#endif
3827 4226
3828#if EV_IDLE_ENABLE 4227#if EV_IDLE_ENABLE
3829void 4228void
3830ev_idle_start (EV_P_ ev_idle *w) 4229ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3831{ 4230{
3832 if (expect_false (ev_is_active (w))) 4231 if (expect_false (ev_is_active (w)))
3833 return; 4232 return;
3834 4233
3835 pri_adjust (EV_A_ (W)w); 4234 pri_adjust (EV_A_ (W)w);
… …
3848 4247
3849 EV_FREQUENT_CHECK; 4248 EV_FREQUENT_CHECK;
3850} 4249}
3851 4250
3852void 4251void
3853ev_idle_stop (EV_P_ ev_idle *w) 4252ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3854{ 4253{
3855 clear_pending (EV_A_ (W)w); 4254 clear_pending (EV_A_ (W)w);
3856 if (expect_false (!ev_is_active (w))) 4255 if (expect_false (!ev_is_active (w)))
3857 return; 4256 return;
3858 4257
… …
3872} 4271}
3873#endif 4272#endif
3874 4273
3875#if EV_PREPARE_ENABLE 4274#if EV_PREPARE_ENABLE
3876void 4275void
3877ev_prepare_start (EV_P_ ev_prepare *w) 4276ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3878{ 4277{
3879 if (expect_false (ev_is_active (w))) 4278 if (expect_false (ev_is_active (w)))
3880 return; 4279 return;
3881 4280
3882 EV_FREQUENT_CHECK; 4281 EV_FREQUENT_CHECK;
… …
3887 4286
3888 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3889} 4288}
3890 4289
3891void 4290void
3892ev_prepare_stop (EV_P_ ev_prepare *w) 4291ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3893{ 4292{
3894 clear_pending (EV_A_ (W)w); 4293 clear_pending (EV_A_ (W)w);
3895 if (expect_false (!ev_is_active (w))) 4294 if (expect_false (!ev_is_active (w)))
3896 return; 4295 return;
3897 4296
… …
3910} 4309}
3911#endif 4310#endif
3912 4311
3913#if EV_CHECK_ENABLE 4312#if EV_CHECK_ENABLE
3914void 4313void
3915ev_check_start (EV_P_ ev_check *w) 4314ev_check_start (EV_P_ ev_check *w) EV_THROW
3916{ 4315{
3917 if (expect_false (ev_is_active (w))) 4316 if (expect_false (ev_is_active (w)))
3918 return; 4317 return;
3919 4318
3920 EV_FREQUENT_CHECK; 4319 EV_FREQUENT_CHECK;
… …
3925 4324
3926 EV_FREQUENT_CHECK; 4325 EV_FREQUENT_CHECK;
3927} 4326}
3928 4327
3929void 4328void
3930ev_check_stop (EV_P_ ev_check *w) 4329ev_check_stop (EV_P_ ev_check *w) EV_THROW
3931{ 4330{
3932 clear_pending (EV_A_ (W)w); 4331 clear_pending (EV_A_ (W)w);
3933 if (expect_false (!ev_is_active (w))) 4332 if (expect_false (!ev_is_active (w)))
3934 return; 4333 return;
3935 4334
… …
3948} 4347}
3949#endif 4348#endif
3950 4349
3951#if EV_EMBED_ENABLE 4350#if EV_EMBED_ENABLE
3952void noinline 4351void noinline
3953ev_embed_sweep (EV_P_ ev_embed *w) 4352ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3954{ 4353{
3955 ev_run (w->other, EVRUN_NOWAIT); 4354 ev_run (w->other, EVRUN_NOWAIT);
3956} 4355}
3957 4356
3958static void 4357static void
… …
4006 ev_idle_stop (EV_A_ idle); 4405 ev_idle_stop (EV_A_ idle);
4007} 4406}
4008#endif 4407#endif
4009 4408
4010void 4409void
4011ev_embed_start (EV_P_ ev_embed *w) 4410ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4012{ 4411{
4013 if (expect_false (ev_is_active (w))) 4412 if (expect_false (ev_is_active (w)))
4014 return; 4413 return;
4015 4414
4016 { 4415 {
… …
4037 4436
4038 EV_FREQUENT_CHECK; 4437 EV_FREQUENT_CHECK;
4039} 4438}
4040 4439
4041void 4440void
4042ev_embed_stop (EV_P_ ev_embed *w) 4441ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4043{ 4442{
4044 clear_pending (EV_A_ (W)w); 4443 clear_pending (EV_A_ (W)w);
4045 if (expect_false (!ev_is_active (w))) 4444 if (expect_false (!ev_is_active (w)))
4046 return; 4445 return;
4047 4446
… …
4057} 4456}
4058#endif 4457#endif
4059 4458
4060#if EV_FORK_ENABLE 4459#if EV_FORK_ENABLE
4061void 4460void
4062ev_fork_start (EV_P_ ev_fork *w) 4461ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4063{ 4462{
4064 if (expect_false (ev_is_active (w))) 4463 if (expect_false (ev_is_active (w)))
4065 return; 4464 return;
4066 4465
4067 EV_FREQUENT_CHECK; 4466 EV_FREQUENT_CHECK;
… …
4072 4471
4073 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
4074} 4473}
4075 4474
4076void 4475void
4077ev_fork_stop (EV_P_ ev_fork *w) 4476ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4078{ 4477{
4079 clear_pending (EV_A_ (W)w); 4478 clear_pending (EV_A_ (W)w);
4080 if (expect_false (!ev_is_active (w))) 4479 if (expect_false (!ev_is_active (w)))
4081 return; 4480 return;
4082 4481
… …
4095} 4494}
4096#endif 4495#endif
4097 4496
4098#if EV_CLEANUP_ENABLE 4497#if EV_CLEANUP_ENABLE
4099void 4498void
4100ev_cleanup_start (EV_P_ ev_cleanup *w) 4499ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4101{ 4500{
4102 if (expect_false (ev_is_active (w))) 4501 if (expect_false (ev_is_active (w)))
4103 return; 4502 return;
4104 4503
4105 EV_FREQUENT_CHECK; 4504 EV_FREQUENT_CHECK;
… …
4112 ev_unref (EV_A); 4511 ev_unref (EV_A);
4113 EV_FREQUENT_CHECK; 4512 EV_FREQUENT_CHECK;
4114} 4513}
4115 4514
4116void 4515void
4117ev_cleanup_stop (EV_P_ ev_cleanup *w) 4516ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4118{ 4517{
4119 clear_pending (EV_A_ (W)w); 4518 clear_pending (EV_A_ (W)w);
4120 if (expect_false (!ev_is_active (w))) 4519 if (expect_false (!ev_is_active (w)))
4121 return; 4520 return;
4122 4521
… …
4136} 4535}
4137#endif 4536#endif
4138 4537
4139#if EV_ASYNC_ENABLE 4538#if EV_ASYNC_ENABLE
4140void 4539void
4141ev_async_start (EV_P_ ev_async *w) 4540ev_async_start (EV_P_ ev_async *w) EV_THROW
4142{ 4541{
4143 if (expect_false (ev_is_active (w))) 4542 if (expect_false (ev_is_active (w)))
4144 return; 4543 return;
4145 4544
4146 w->sent = 0; 4545 w->sent = 0;
… …
4155 4554
4156 EV_FREQUENT_CHECK; 4555 EV_FREQUENT_CHECK;
4157} 4556}
4158 4557
4159void 4558void
4160ev_async_stop (EV_P_ ev_async *w) 4559ev_async_stop (EV_P_ ev_async *w) EV_THROW
4161{ 4560{
4162 clear_pending (EV_A_ (W)w); 4561 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w))) 4562 if (expect_false (!ev_is_active (w)))
4164 return; 4563 return;
4165 4564
… …
4176 4575
4177 EV_FREQUENT_CHECK; 4576 EV_FREQUENT_CHECK;
4178} 4577}
4179 4578
4180void 4579void
4181ev_async_send (EV_P_ ev_async *w) 4580ev_async_send (EV_P_ ev_async *w) EV_THROW
4182{ 4581{
4183 w->sent = 1; 4582 w->sent = 1;
4184 evpipe_write (EV_A_ &async_pending); 4583 evpipe_write (EV_A_ &async_pending);
4185} 4584}
4186#endif 4585#endif
… …
4223 4622
4224 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));
4225} 4624}
4226 4625
4227void 4626void
4228ev_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
4229{ 4628{
4230 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));
4231 4630
4232 if (expect_false (!once)) 4631 if (expect_false (!once))
4233 { 4632 {
… …
4255 4654
4256/*****************************************************************************/ 4655/*****************************************************************************/
4257 4656
4258#if EV_WALK_ENABLE 4657#if EV_WALK_ENABLE
4259void ecb_cold 4658void ecb_cold
4260ev_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
4261{ 4660{
4262 int i, j; 4661 int i, j;
4263 ev_watcher_list *wl, *wn; 4662 ev_watcher_list *wl, *wn;
4264 4663
4265 if (types & (EV_IO | EV_EMBED)) 4664 if (types & (EV_IO | EV_EMBED))
… …
4371 4770
4372#if EV_MULTIPLICITY 4771#if EV_MULTIPLICITY
4373 #include "ev_wrap.h" 4772 #include "ev_wrap.h"
4374#endif 4773#endif
4375 4774
4376EV_CPP(})
4377

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