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Comparing libev/ev.c (file contents):
Revision 1.397 by root, Wed Aug 24 16:13:41 2011 UTC vs.
Revision 1.441 by root, Wed May 30 15:45:40 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 0x00010001
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
535 typedef intptr_t ptrdiff_t;
517#else 536#else
518 #include <inttypes.h> 537 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU
539 #define ECB_PTRSIZE 8
540 #else
541 #define ECB_PTRSIZE 4
542 #endif
519#endif 543#endif
520 544
521/* many compilers define _GNUC_ to some versions but then only implement 545/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions, 546 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers. 547 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so. 548 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 549 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place. 550 * an issue with that they should have done it right in the first place.
527 */ 551 */
528#ifndef ECB_GCC_VERSION 552#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 554 #define ECB_GCC_VERSION(major,minor) 0
531 #else 555 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 557 #endif
534#endif 558#endif
535 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP98 (__cplusplus >= 199711L)
565#define ECB_CPP11 (__cplusplus >= 201103L)
566
536/*****************************************************************************/ 567/*****************************************************************************/
537 568
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 569/* 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 */ 570/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 571
541#if ECB_NO_THREADS || ECB_NO_SMP 572#if ECB_NO_THREADS
573 #define ECB_NO_SMP 1
574#endif
575
576#if ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 577 #define ECB_MEMORY_FENCE do { } while (0)
543#endif 578#endif
544 579
545#ifndef ECB_MEMORY_FENCE 580#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 581 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 582 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 583 #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 */ 584 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 585 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 586 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 587 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 588 #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 */ 589 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 590 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 592 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 593 || 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") 594 #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__ ) \ 595 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 596 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 597 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
598 #elif __sparc || __sparc__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
601 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
602 #elif defined __s390__ || defined __s390x__
603 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
604 #elif defined __mips__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
606 #elif defined __alpha__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
608 #elif defined __hppa__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
610 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
611 #elif defined __ia64__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
563 #endif 613 #endif
564 #endif 614 #endif
565#endif 615#endif
566 616
567#ifndef ECB_MEMORY_FENCE 617#ifndef ECB_MEMORY_FENCE
618 #if ECB_GCC_VERSION(4,7)
619 /* see comment below about the C11 memory model. in short - avoid */
620 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
621 #elif defined __clang && __has_feature (cxx_atomic)
622 /* see above */
623 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 624 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 625 #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 */ 626 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 627 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 628 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 629 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 630 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 631 #elif defined _WIN32
578 #include <WinNT.h> 632 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 633 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
634 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
635 #include <mbarrier.h>
636 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
637 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
638 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
639 #elif __xlC__
640 #define ECB_MEMORY_FENCE __sync ()
641 #endif
642#endif
643
644#ifndef ECB_MEMORY_FENCE
645 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
646 /* we assume that these memory fences work on all variables/all memory accesses, */
647 /* not just C11 atomics and atomic accesses */
648 #include <stdatomic.h>
649 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */
650 /* simple barrier semantics. That means we need to take out thor's hammer. */
651 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 652 #endif
581#endif 653#endif
582 654
583#ifndef ECB_MEMORY_FENCE 655#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 656 #if !ECB_AVOID_PTHREADS
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 668 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) 669 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 670 #endif
599#endif 671#endif
600 672
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 673#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 674 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 675#endif
604 676
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 677#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 678 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 679#endif
608 680
609/*****************************************************************************/ 681/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 682
613#if __cplusplus 683#if __cplusplus
614 #define ecb_inline static inline 684 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 685#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 686 #define ecb_inline static __inline__
655#elif ECB_GCC_VERSION(3,0) 725#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 726 #define ecb_decltype(x) __typeof(x)
657#endif 727#endif
658 728
659#define ecb_noinline ecb_attribute ((__noinline__)) 729#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 730#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 731#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 732#define ecb_pure ecb_attribute ((__pure__))
733
734#if ECB_C11
735 #define ecb_noreturn _Noreturn
736#else
737 #define ecb_noreturn ecb_attribute ((__noreturn__))
738#endif
664 739
665#if ECB_GCC_VERSION(4,3) 740#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 741 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 742 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 743 #define ecb_cold ecb_attribute ((__cold__))
759 834
760 return r + ecb_ld32 (x); 835 return r + ecb_ld32 (x);
761 } 836 }
762#endif 837#endif
763 838
839ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
840ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
841ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
842ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
843
844ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
845ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
846{
847 return ( (x * 0x0802U & 0x22110U)
848 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
849}
850
851ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
852ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
853{
854 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
855 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
856 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
857 x = ( x >> 8 ) | ( x << 8);
858
859 return x;
860}
861
862ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
863ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
864{
865 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
866 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
867 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
868 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
869 x = ( x >> 16 ) | ( x << 16);
870
871 return x;
872}
873
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 874/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 875/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 876ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 877ecb_function_ int
768ecb_popcount64 (uint64_t x) 878ecb_popcount64 (uint64_t x)
817 927
818#if ECB_GCC_VERSION(4,5) 928#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 929 #define ecb_unreachable() __builtin_unreachable ()
820#else 930#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 931 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 932 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 933 ecb_inline void ecb_unreachable (void) { }
824#endif 934#endif
825 935
826/* try to tell the compiler that some condition is definitely true */ 936/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 937#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
828 938
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 939ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 940ecb_inline unsigned char
831ecb_byteorder_helper (void) 941ecb_byteorder_helper (void)
832{ 942{
833 const uint32_t u = 0x11223344; 943 const uint32_t u = 0x11223344;
834 return *(unsigned char *)&u; 944 return *(unsigned char *)&u;
835} 945}
836 946
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 947ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 948ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 949ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 950ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 951
842#if ECB_GCC_VERSION(3,0) || ECB_C99 952#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 953 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 954#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 955 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
956#endif
957
958#if __cplusplus
959 template<typename T>
960 static inline T ecb_div_rd (T val, T div)
961 {
962 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
963 }
964 template<typename T>
965 static inline T ecb_div_ru (T val, T div)
966 {
967 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
968 }
969#else
970 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
971 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 972#endif
847 973
848#if ecb_cplusplus_does_not_suck 974#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) */ 975 /* 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> 976 template<typename T, int N>
862 988
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 989#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864/* if your architecture doesn't need memory fences, e.g. because it is 990/* 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 991 * 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 992 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
867 * libev, in which casess the memory fences become nops. 993 * libev, in which cases the memory fences become nops.
868 * alternatively, you can remove this #error and link against libpthread, 994 * alternatively, you can remove this #error and link against libpthread,
869 * which will then provide the memory fences. 995 * which will then provide the memory fences.
870 */ 996 */
871# error "memory fences not defined for your architecture, please report" 997# error "memory fences not defined for your architecture, please report"
872#endif 998#endif
1029{ 1155{
1030 write (STDERR_FILENO, msg, strlen (msg)); 1156 write (STDERR_FILENO, msg, strlen (msg));
1031} 1157}
1032#endif 1158#endif
1033 1159
1034static void (*syserr_cb)(const char *msg); 1160static void (*syserr_cb)(const char *msg) EV_THROW;
1035 1161
1036void ecb_cold 1162void ecb_cold
1037ev_set_syserr_cb (void (*cb)(const char *msg)) 1163ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1038{ 1164{
1039 syserr_cb = cb; 1165 syserr_cb = cb;
1040} 1166}
1041 1167
1042static void noinline ecb_cold 1168static void noinline ecb_cold
1060 abort (); 1186 abort ();
1061 } 1187 }
1062} 1188}
1063 1189
1064static void * 1190static void *
1065ev_realloc_emul (void *ptr, long size) 1191ev_realloc_emul (void *ptr, long size) EV_THROW
1066{ 1192{
1067#if __GLIBC__ 1193#if __GLIBC__
1068 return realloc (ptr, size); 1194 return realloc (ptr, size);
1069#else 1195#else
1070 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
1078 free (ptr); 1204 free (ptr);
1079 return 0; 1205 return 0;
1080#endif 1206#endif
1081} 1207}
1082 1208
1083static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1084 1210
1085void ecb_cold 1211void ecb_cold
1086ev_set_allocator (void *(*cb)(void *ptr, long size)) 1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1087{ 1213{
1088 alloc = cb; 1214 alloc = cb;
1089} 1215}
1090 1216
1091inline_speed void * 1217inline_speed void *
1179 #undef VAR 1305 #undef VAR
1180 }; 1306 };
1181 #include "ev_wrap.h" 1307 #include "ev_wrap.h"
1182 1308
1183 static struct ev_loop default_loop_struct; 1309 static struct ev_loop default_loop_struct;
1184 struct ev_loop *ev_default_loop_ptr; 1310 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1185 1311
1186#else 1312#else
1187 1313
1188 ev_tstamp ev_rt_now; 1314 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; 1315 #define VAR(name,decl) static decl;
1190 #include "ev_vars.h" 1316 #include "ev_vars.h"
1191 #undef VAR 1317 #undef VAR
1192 1318
1193 static int ev_default_loop_ptr; 1319 static int ev_default_loop_ptr;
1208 1334
1209/*****************************************************************************/ 1335/*****************************************************************************/
1210 1336
1211#ifndef EV_HAVE_EV_TIME 1337#ifndef EV_HAVE_EV_TIME
1212ev_tstamp 1338ev_tstamp
1213ev_time (void) 1339ev_time (void) EV_THROW
1214{ 1340{
1215#if EV_USE_REALTIME 1341#if EV_USE_REALTIME
1216 if (expect_true (have_realtime)) 1342 if (expect_true (have_realtime))
1217 { 1343 {
1218 struct timespec ts; 1344 struct timespec ts;
1242 return ev_time (); 1368 return ev_time ();
1243} 1369}
1244 1370
1245#if EV_MULTIPLICITY 1371#if EV_MULTIPLICITY
1246ev_tstamp 1372ev_tstamp
1247ev_now (EV_P) 1373ev_now (EV_P) EV_THROW
1248{ 1374{
1249 return ev_rt_now; 1375 return ev_rt_now;
1250} 1376}
1251#endif 1377#endif
1252 1378
1253void 1379void
1254ev_sleep (ev_tstamp delay) 1380ev_sleep (ev_tstamp delay) EV_THROW
1255{ 1381{
1256 if (delay > 0.) 1382 if (delay > 0.)
1257 { 1383 {
1258#if EV_USE_NANOSLEEP 1384#if EV_USE_NANOSLEEP
1259 struct timespec ts; 1385 struct timespec ts;
1260 1386
1261 EV_TS_SET (ts, delay); 1387 EV_TS_SET (ts, delay);
1262 nanosleep (&ts, 0); 1388 nanosleep (&ts, 0);
1263#elif defined(_WIN32) 1389#elif defined _WIN32
1264 Sleep ((unsigned long)(delay * 1e3)); 1390 Sleep ((unsigned long)(delay * 1e3));
1265#else 1391#else
1266 struct timeval tv; 1392 struct timeval tv;
1267 1393
1268 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1394 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1287 1413
1288 do 1414 do
1289 ncur <<= 1; 1415 ncur <<= 1;
1290 while (cnt > ncur); 1416 while (cnt > ncur);
1291 1417
1292 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1418 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1293 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1419 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1294 { 1420 {
1295 ncur *= elem; 1421 ncur *= elem;
1296 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1422 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1297 ncur = ncur - sizeof (void *) * 4; 1423 ncur = ncur - sizeof (void *) * 4;
1340pendingcb (EV_P_ ev_prepare *w, int revents) 1466pendingcb (EV_P_ ev_prepare *w, int revents)
1341{ 1467{
1342} 1468}
1343 1469
1344void noinline 1470void noinline
1345ev_feed_event (EV_P_ void *w, int revents) 1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1346{ 1472{
1347 W w_ = (W)w; 1473 W w_ = (W)w;
1348 int pri = ABSPRI (w_); 1474 int pri = ABSPRI (w_);
1349 1475
1350 if (expect_false (w_->pending)) 1476 if (expect_false (w_->pending))
1354 w_->pending = ++pendingcnt [pri]; 1480 w_->pending = ++pendingcnt [pri];
1355 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1356 pendings [pri][w_->pending - 1].w = w_; 1482 pendings [pri][w_->pending - 1].w = w_;
1357 pendings [pri][w_->pending - 1].events = revents; 1483 pendings [pri][w_->pending - 1].events = revents;
1358 } 1484 }
1485
1486 pendingpri = NUMPRI - 1;
1359} 1487}
1360 1488
1361inline_speed void 1489inline_speed void
1362feed_reverse (EV_P_ W w) 1490feed_reverse (EV_P_ W w)
1363{ 1491{
1409 if (expect_true (!anfd->reify)) 1537 if (expect_true (!anfd->reify))
1410 fd_event_nocheck (EV_A_ fd, revents); 1538 fd_event_nocheck (EV_A_ fd, revents);
1411} 1539}
1412 1540
1413void 1541void
1414ev_feed_fd_event (EV_P_ int fd, int revents) 1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1415{ 1543{
1416 if (fd >= 0 && fd < anfdmax) 1544 if (fd >= 0 && fd < anfdmax)
1417 fd_event_nocheck (EV_A_ fd, revents); 1545 fd_event_nocheck (EV_A_ fd, revents);
1418} 1546}
1419 1547
1768} 1896}
1769 1897
1770inline_speed void 1898inline_speed void
1771evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1899evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1772{ 1900{
1901 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1902
1773 if (expect_true (*flag)) 1903 if (expect_true (*flag))
1774 return; 1904 return;
1775 1905
1776 *flag = 1; 1906 *flag = 1;
1777
1778 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 1907 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1779 1908
1780 pipe_write_skipped = 1; 1909 pipe_write_skipped = 1;
1781 1910
1782 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ 1911 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1783 1912
1784 if (pipe_write_wanted) 1913 if (pipe_write_wanted)
1785 { 1914 {
1786 int old_errno; 1915 int old_errno;
1787 1916
1788 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 1917 pipe_write_skipped = 0;
1918 ECB_MEMORY_FENCE_RELEASE;
1789 1919
1790 old_errno = errno; /* save errno because write will clobber it */ 1920 old_errno = errno; /* save errno because write will clobber it */
1791 1921
1792#if EV_USE_EVENTFD 1922#if EV_USE_EVENTFD
1793 if (evfd >= 0) 1923 if (evfd >= 0)
1796 write (evfd, &counter, sizeof (uint64_t)); 1926 write (evfd, &counter, sizeof (uint64_t));
1797 } 1927 }
1798 else 1928 else
1799#endif 1929#endif
1800 { 1930 {
1801 /* win32 people keep sending patches that change this write() to send() */ 1931#ifdef _WIN32
1802 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1932 WSABUF buf;
1803 /* so when you think this write should be a send instead, please find out */ 1933 DWORD sent;
1804 /* where your send() is from - it's definitely not the microsoft send, and */ 1934 buf.buf = &buf;
1805 /* tell me. thank you. */ 1935 buf.len = 1;
1936 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1937#else
1806 write (evpipe [1], &(evpipe [1]), 1); 1938 write (evpipe [1], &(evpipe [1]), 1);
1939#endif
1807 } 1940 }
1808 1941
1809 errno = old_errno; 1942 errno = old_errno;
1810 } 1943 }
1811} 1944}
1826 read (evfd, &counter, sizeof (uint64_t)); 1959 read (evfd, &counter, sizeof (uint64_t));
1827 } 1960 }
1828 else 1961 else
1829#endif 1962#endif
1830 { 1963 {
1831 char dummy; 1964 char dummy[4];
1832 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1965#ifdef _WIN32
1966 WSABUF buf;
1967 DWORD recvd;
1968 DWORD flags = 0;
1969 buf.buf = dummy;
1970 buf.len = sizeof (dummy);
1971 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1972#else
1833 read (evpipe [0], &dummy, 1); 1973 read (evpipe [0], &dummy, sizeof (dummy));
1974#endif
1834 } 1975 }
1835 } 1976 }
1836 1977
1837 pipe_write_skipped = 0; 1978 pipe_write_skipped = 0;
1979
1980 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1838 1981
1839#if EV_SIGNAL_ENABLE 1982#if EV_SIGNAL_ENABLE
1840 if (sig_pending) 1983 if (sig_pending)
1841 { 1984 {
1842 sig_pending = 0; 1985 sig_pending = 0;
1986
1987 ECB_MEMORY_FENCE;
1843 1988
1844 for (i = EV_NSIG - 1; i--; ) 1989 for (i = EV_NSIG - 1; i--; )
1845 if (expect_false (signals [i].pending)) 1990 if (expect_false (signals [i].pending))
1846 ev_feed_signal_event (EV_A_ i + 1); 1991 ev_feed_signal_event (EV_A_ i + 1);
1847 } 1992 }
1849 1994
1850#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1851 if (async_pending) 1996 if (async_pending)
1852 { 1997 {
1853 async_pending = 0; 1998 async_pending = 0;
1999
2000 ECB_MEMORY_FENCE;
1854 2001
1855 for (i = asynccnt; i--; ) 2002 for (i = asynccnt; i--; )
1856 if (asyncs [i]->sent) 2003 if (asyncs [i]->sent)
1857 { 2004 {
1858 asyncs [i]->sent = 0; 2005 asyncs [i]->sent = 0;
2006 ECB_MEMORY_FENCE_RELEASE;
1859 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2007 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1860 } 2008 }
1861 } 2009 }
1862#endif 2010#endif
1863} 2011}
1864 2012
1865/*****************************************************************************/ 2013/*****************************************************************************/
1866 2014
1867void 2015void
1868ev_feed_signal (int signum) 2016ev_feed_signal (int signum) EV_THROW
1869{ 2017{
1870#if EV_MULTIPLICITY 2018#if EV_MULTIPLICITY
1871 EV_P = signals [signum - 1].loop; 2019 EV_P = signals [signum - 1].loop;
1872 2020
1873 if (!EV_A) 2021 if (!EV_A)
1890 2038
1891 ev_feed_signal (signum); 2039 ev_feed_signal (signum);
1892} 2040}
1893 2041
1894void noinline 2042void noinline
1895ev_feed_signal_event (EV_P_ int signum) 2043ev_feed_signal_event (EV_P_ int signum) EV_THROW
1896{ 2044{
1897 WL w; 2045 WL w;
1898 2046
1899 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2047 if (expect_false (signum <= 0 || signum > EV_NSIG))
1900 return; 2048 return;
1908 if (expect_false (signals [signum].loop != EV_A)) 2056 if (expect_false (signals [signum].loop != EV_A))
1909 return; 2057 return;
1910#endif 2058#endif
1911 2059
1912 signals [signum].pending = 0; 2060 signals [signum].pending = 0;
2061 ECB_MEMORY_FENCE_RELEASE;
1913 2062
1914 for (w = signals [signum].head; w; w = w->next) 2063 for (w = signals [signum].head; w; w = w->next)
1915 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2064 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1916} 2065}
1917 2066
2016#if EV_USE_SELECT 2165#if EV_USE_SELECT
2017# include "ev_select.c" 2166# include "ev_select.c"
2018#endif 2167#endif
2019 2168
2020int ecb_cold 2169int ecb_cold
2021ev_version_major (void) 2170ev_version_major (void) EV_THROW
2022{ 2171{
2023 return EV_VERSION_MAJOR; 2172 return EV_VERSION_MAJOR;
2024} 2173}
2025 2174
2026int ecb_cold 2175int ecb_cold
2027ev_version_minor (void) 2176ev_version_minor (void) EV_THROW
2028{ 2177{
2029 return EV_VERSION_MINOR; 2178 return EV_VERSION_MINOR;
2030} 2179}
2031 2180
2032/* return true if we are running with elevated privileges and should ignore env variables */ 2181/* return true if we are running with elevated privileges and should ignore env variables */
2040 || getgid () != getegid (); 2189 || getgid () != getegid ();
2041#endif 2190#endif
2042} 2191}
2043 2192
2044unsigned int ecb_cold 2193unsigned int ecb_cold
2045ev_supported_backends (void) 2194ev_supported_backends (void) EV_THROW
2046{ 2195{
2047 unsigned int flags = 0; 2196 unsigned int flags = 0;
2048 2197
2049 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2050 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2054 2203
2055 return flags; 2204 return flags;
2056} 2205}
2057 2206
2058unsigned int ecb_cold 2207unsigned int ecb_cold
2059ev_recommended_backends (void) 2208ev_recommended_backends (void) EV_THROW
2060{ 2209{
2061 unsigned int flags = ev_supported_backends (); 2210 unsigned int flags = ev_supported_backends ();
2062 2211
2063#ifndef __NetBSD__ 2212#ifndef __NetBSD__
2064 /* kqueue is borked on everything but netbsd apparently */ 2213 /* kqueue is borked on everything but netbsd apparently */
2076 2225
2077 return flags; 2226 return flags;
2078} 2227}
2079 2228
2080unsigned int ecb_cold 2229unsigned int ecb_cold
2081ev_embeddable_backends (void) 2230ev_embeddable_backends (void) EV_THROW
2082{ 2231{
2083 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2232 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2084 2233
2085 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2234 /* 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 */ 2235 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2088 2237
2089 return flags; 2238 return flags;
2090} 2239}
2091 2240
2092unsigned int 2241unsigned int
2093ev_backend (EV_P) 2242ev_backend (EV_P) EV_THROW
2094{ 2243{
2095 return backend; 2244 return backend;
2096} 2245}
2097 2246
2098#if EV_FEATURE_API 2247#if EV_FEATURE_API
2099unsigned int 2248unsigned int
2100ev_iteration (EV_P) 2249ev_iteration (EV_P) EV_THROW
2101{ 2250{
2102 return loop_count; 2251 return loop_count;
2103} 2252}
2104 2253
2105unsigned int 2254unsigned int
2106ev_depth (EV_P) 2255ev_depth (EV_P) EV_THROW
2107{ 2256{
2108 return loop_depth; 2257 return loop_depth;
2109} 2258}
2110 2259
2111void 2260void
2112ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2113{ 2262{
2114 io_blocktime = interval; 2263 io_blocktime = interval;
2115} 2264}
2116 2265
2117void 2266void
2118ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2119{ 2268{
2120 timeout_blocktime = interval; 2269 timeout_blocktime = interval;
2121} 2270}
2122 2271
2123void 2272void
2124ev_set_userdata (EV_P_ void *data) 2273ev_set_userdata (EV_P_ void *data) EV_THROW
2125{ 2274{
2126 userdata = data; 2275 userdata = data;
2127} 2276}
2128 2277
2129void * 2278void *
2130ev_userdata (EV_P) 2279ev_userdata (EV_P) EV_THROW
2131{ 2280{
2132 return userdata; 2281 return userdata;
2133} 2282}
2134 2283
2135void 2284void
2136ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2285ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2137{ 2286{
2138 invoke_cb = invoke_pending_cb; 2287 invoke_cb = invoke_pending_cb;
2139} 2288}
2140 2289
2141void 2290void
2142ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2291ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2143{ 2292{
2144 release_cb = release; 2293 release_cb = release;
2145 acquire_cb = acquire; 2294 acquire_cb = acquire;
2146} 2295}
2147#endif 2296#endif
2148 2297
2149/* initialise a loop structure, must be zero-initialised */ 2298/* initialise a loop structure, must be zero-initialised */
2150static void noinline ecb_cold 2299static void noinline ecb_cold
2151loop_init (EV_P_ unsigned int flags) 2300loop_init (EV_P_ unsigned int flags) EV_THROW
2152{ 2301{
2153 if (!backend) 2302 if (!backend)
2154 { 2303 {
2155 origflags = flags; 2304 origflags = flags;
2156 2305
2261 EV_INVOKE_PENDING; 2410 EV_INVOKE_PENDING;
2262 } 2411 }
2263#endif 2412#endif
2264 2413
2265#if EV_CHILD_ENABLE 2414#if EV_CHILD_ENABLE
2266 if (ev_is_active (&childev)) 2415 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2267 { 2416 {
2268 ev_ref (EV_A); /* child watcher */ 2417 ev_ref (EV_A); /* child watcher */
2269 ev_signal_stop (EV_A_ &childev); 2418 ev_signal_stop (EV_A_ &childev);
2270 } 2419 }
2271#endif 2420#endif
2409} 2558}
2410 2559
2411#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
2412 2561
2413struct ev_loop * ecb_cold 2562struct ev_loop * ecb_cold
2414ev_loop_new (unsigned int flags) 2563ev_loop_new (unsigned int flags) EV_THROW
2415{ 2564{
2416 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2417 2566
2418 memset (EV_A, 0, sizeof (struct ev_loop)); 2567 memset (EV_A, 0, sizeof (struct ev_loop));
2419 loop_init (EV_A_ flags); 2568 loop_init (EV_A_ flags);
2463} 2612}
2464#endif 2613#endif
2465 2614
2466#if EV_FEATURE_API 2615#if EV_FEATURE_API
2467void ecb_cold 2616void ecb_cold
2468ev_verify (EV_P) 2617ev_verify (EV_P) EV_THROW
2469{ 2618{
2470#if EV_VERIFY 2619#if EV_VERIFY
2471 int i; 2620 int i;
2472 WL w; 2621 WL w, w2;
2473 2622
2474 assert (activecnt >= -1); 2623 assert (activecnt >= -1);
2475 2624
2476 assert (fdchangemax >= fdchangecnt); 2625 assert (fdchangemax >= fdchangecnt);
2477 for (i = 0; i < fdchangecnt; ++i) 2626 for (i = 0; i < fdchangecnt; ++i)
2478 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2627 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2479 2628
2480 assert (anfdmax >= 0); 2629 assert (anfdmax >= 0);
2481 for (i = 0; i < anfdmax; ++i) 2630 for (i = 0; i < anfdmax; ++i)
2631 {
2632 int j = 0;
2633
2482 for (w = anfds [i].head; w; w = w->next) 2634 for (w = w2 = anfds [i].head; w; w = w->next)
2483 { 2635 {
2484 verify_watcher (EV_A_ (W)w); 2636 verify_watcher (EV_A_ (W)w);
2637
2638 if (j++ & 1)
2639 {
2640 assert (("libev: io watcher list contains a loop", w != w2));
2641 w2 = w2->next;
2642 }
2643
2485 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2644 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)); 2645 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2487 } 2646 }
2647 }
2488 2648
2489 assert (timermax >= timercnt); 2649 assert (timermax >= timercnt);
2490 verify_heap (EV_A_ timers, timercnt); 2650 verify_heap (EV_A_ timers, timercnt);
2491 2651
2492#if EV_PERIODIC_ENABLE 2652#if EV_PERIODIC_ENABLE
2542#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
2543struct ev_loop * ecb_cold 2703struct ev_loop * ecb_cold
2544#else 2704#else
2545int 2705int
2546#endif 2706#endif
2547ev_default_loop (unsigned int flags) 2707ev_default_loop (unsigned int flags) EV_THROW
2548{ 2708{
2549 if (!ev_default_loop_ptr) 2709 if (!ev_default_loop_ptr)
2550 { 2710 {
2551#if EV_MULTIPLICITY 2711#if EV_MULTIPLICITY
2552 EV_P = ev_default_loop_ptr = &default_loop_struct; 2712 EV_P = ev_default_loop_ptr = &default_loop_struct;
2571 2731
2572 return ev_default_loop_ptr; 2732 return ev_default_loop_ptr;
2573} 2733}
2574 2734
2575void 2735void
2576ev_loop_fork (EV_P) 2736ev_loop_fork (EV_P) EV_THROW
2577{ 2737{
2578 postfork = 1; /* must be in line with ev_default_fork */ 2738 postfork = 1;
2579} 2739}
2580 2740
2581/*****************************************************************************/ 2741/*****************************************************************************/
2582 2742
2583void 2743void
2585{ 2745{
2586 EV_CB_INVOKE ((W)w, revents); 2746 EV_CB_INVOKE ((W)w, revents);
2587} 2747}
2588 2748
2589unsigned int 2749unsigned int
2590ev_pending_count (EV_P) 2750ev_pending_count (EV_P) EV_THROW
2591{ 2751{
2592 int pri; 2752 int pri;
2593 unsigned int count = 0; 2753 unsigned int count = 0;
2594 2754
2595 for (pri = NUMPRI; pri--; ) 2755 for (pri = NUMPRI; pri--; )
2599} 2759}
2600 2760
2601void noinline 2761void noinline
2602ev_invoke_pending (EV_P) 2762ev_invoke_pending (EV_P)
2603{ 2763{
2604 int pri; 2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2605
2606 for (pri = NUMPRI; pri--; )
2607 while (pendingcnt [pri]) 2765 while (pendingcnt [pendingpri])
2608 { 2766 {
2609 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2610 2768
2611 p->w->pending = 0; 2769 p->w->pending = 0;
2612 EV_CB_INVOKE (p->w, p->events); 2770 EV_CB_INVOKE (p->w, p->events);
2613 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2614 } 2772 }
2709{ 2867{
2710 EV_FREQUENT_CHECK; 2868 EV_FREQUENT_CHECK;
2711 2869
2712 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2870 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2713 { 2871 {
2714 int feed_count = 0;
2715
2716 do 2872 do
2717 { 2873 {
2718 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2719 2875
2720 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2876 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2854 3010
2855 mn_now = ev_rt_now; 3011 mn_now = ev_rt_now;
2856 } 3012 }
2857} 3013}
2858 3014
2859void 3015int
2860ev_run (EV_P_ int flags) 3016ev_run (EV_P_ int flags)
2861{ 3017{
2862#if EV_FEATURE_API 3018#if EV_FEATURE_API
2863 ++loop_depth; 3019 ++loop_depth;
2864#endif 3020#endif
2977#endif 3133#endif
2978 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3134 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2979 backend_poll (EV_A_ waittime); 3135 backend_poll (EV_A_ waittime);
2980 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3136 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2981 3137
2982 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3138 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2983 3139
3140 MEMORY_FENCE_ACQUIRE;
2984 if (pipe_write_skipped) 3141 if (pipe_write_skipped)
2985 { 3142 {
2986 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3143 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); 3144 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2988 } 3145 }
3021 loop_done = EVBREAK_CANCEL; 3178 loop_done = EVBREAK_CANCEL;
3022 3179
3023#if EV_FEATURE_API 3180#if EV_FEATURE_API
3024 --loop_depth; 3181 --loop_depth;
3025#endif 3182#endif
3183
3184 return activecnt;
3026} 3185}
3027 3186
3028void 3187void
3029ev_break (EV_P_ int how) 3188ev_break (EV_P_ int how) EV_THROW
3030{ 3189{
3031 loop_done = how; 3190 loop_done = how;
3032} 3191}
3033 3192
3034void 3193void
3035ev_ref (EV_P) 3194ev_ref (EV_P) EV_THROW
3036{ 3195{
3037 ++activecnt; 3196 ++activecnt;
3038} 3197}
3039 3198
3040void 3199void
3041ev_unref (EV_P) 3200ev_unref (EV_P) EV_THROW
3042{ 3201{
3043 --activecnt; 3202 --activecnt;
3044} 3203}
3045 3204
3046void 3205void
3047ev_now_update (EV_P) 3206ev_now_update (EV_P) EV_THROW
3048{ 3207{
3049 time_update (EV_A_ 1e100); 3208 time_update (EV_A_ 1e100);
3050} 3209}
3051 3210
3052void 3211void
3053ev_suspend (EV_P) 3212ev_suspend (EV_P) EV_THROW
3054{ 3213{
3055 ev_now_update (EV_A); 3214 ev_now_update (EV_A);
3056} 3215}
3057 3216
3058void 3217void
3059ev_resume (EV_P) 3218ev_resume (EV_P) EV_THROW
3060{ 3219{
3061 ev_tstamp mn_prev = mn_now; 3220 ev_tstamp mn_prev = mn_now;
3062 3221
3063 ev_now_update (EV_A); 3222 ev_now_update (EV_A);
3064 timers_reschedule (EV_A_ mn_now - mn_prev); 3223 timers_reschedule (EV_A_ mn_now - mn_prev);
3103 w->pending = 0; 3262 w->pending = 0;
3104 } 3263 }
3105} 3264}
3106 3265
3107int 3266int
3108ev_clear_pending (EV_P_ void *w) 3267ev_clear_pending (EV_P_ void *w) EV_THROW
3109{ 3268{
3110 W w_ = (W)w; 3269 W w_ = (W)w;
3111 int pending = w_->pending; 3270 int pending = w_->pending;
3112 3271
3113 if (expect_true (pending)) 3272 if (expect_true (pending))
3146} 3305}
3147 3306
3148/*****************************************************************************/ 3307/*****************************************************************************/
3149 3308
3150void noinline 3309void noinline
3151ev_io_start (EV_P_ ev_io *w) 3310ev_io_start (EV_P_ ev_io *w) EV_THROW
3152{ 3311{
3153 int fd = w->fd; 3312 int fd = w->fd;
3154 3313
3155 if (expect_false (ev_is_active (w))) 3314 if (expect_false (ev_is_active (w)))
3156 return; 3315 return;
3162 3321
3163 ev_start (EV_A_ (W)w, 1); 3322 ev_start (EV_A_ (W)w, 1);
3164 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3323 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3165 wlist_add (&anfds[fd].head, (WL)w); 3324 wlist_add (&anfds[fd].head, (WL)w);
3166 3325
3326 /* common bug, apparently */
3327 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3328
3167 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3329 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3168 w->events &= ~EV__IOFDSET; 3330 w->events &= ~EV__IOFDSET;
3169 3331
3170 EV_FREQUENT_CHECK; 3332 EV_FREQUENT_CHECK;
3171} 3333}
3172 3334
3173void noinline 3335void noinline
3174ev_io_stop (EV_P_ ev_io *w) 3336ev_io_stop (EV_P_ ev_io *w) EV_THROW
3175{ 3337{
3176 clear_pending (EV_A_ (W)w); 3338 clear_pending (EV_A_ (W)w);
3177 if (expect_false (!ev_is_active (w))) 3339 if (expect_false (!ev_is_active (w)))
3178 return; 3340 return;
3179 3341
3188 3350
3189 EV_FREQUENT_CHECK; 3351 EV_FREQUENT_CHECK;
3190} 3352}
3191 3353
3192void noinline 3354void noinline
3193ev_timer_start (EV_P_ ev_timer *w) 3355ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3194{ 3356{
3195 if (expect_false (ev_is_active (w))) 3357 if (expect_false (ev_is_active (w)))
3196 return; 3358 return;
3197 3359
3198 ev_at (w) += mn_now; 3360 ev_at (w) += mn_now;
3212 3374
3213 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3375 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3214} 3376}
3215 3377
3216void noinline 3378void noinline
3217ev_timer_stop (EV_P_ ev_timer *w) 3379ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3218{ 3380{
3219 clear_pending (EV_A_ (W)w); 3381 clear_pending (EV_A_ (W)w);
3220 if (expect_false (!ev_is_active (w))) 3382 if (expect_false (!ev_is_active (w)))
3221 return; 3383 return;
3222 3384
3242 3404
3243 EV_FREQUENT_CHECK; 3405 EV_FREQUENT_CHECK;
3244} 3406}
3245 3407
3246void noinline 3408void noinline
3247ev_timer_again (EV_P_ ev_timer *w) 3409ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3248{ 3410{
3249 EV_FREQUENT_CHECK; 3411 EV_FREQUENT_CHECK;
3412
3413 clear_pending (EV_A_ (W)w);
3250 3414
3251 if (ev_is_active (w)) 3415 if (ev_is_active (w))
3252 { 3416 {
3253 if (w->repeat) 3417 if (w->repeat)
3254 { 3418 {
3267 3431
3268 EV_FREQUENT_CHECK; 3432 EV_FREQUENT_CHECK;
3269} 3433}
3270 3434
3271ev_tstamp 3435ev_tstamp
3272ev_timer_remaining (EV_P_ ev_timer *w) 3436ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3273{ 3437{
3274 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3438 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3275} 3439}
3276 3440
3277#if EV_PERIODIC_ENABLE 3441#if EV_PERIODIC_ENABLE
3278void noinline 3442void noinline
3279ev_periodic_start (EV_P_ ev_periodic *w) 3443ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3280{ 3444{
3281 if (expect_false (ev_is_active (w))) 3445 if (expect_false (ev_is_active (w)))
3282 return; 3446 return;
3283 3447
3284 if (w->reschedule_cb) 3448 if (w->reschedule_cb)
3304 3468
3305 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3469 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3306} 3470}
3307 3471
3308void noinline 3472void noinline
3309ev_periodic_stop (EV_P_ ev_periodic *w) 3473ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3310{ 3474{
3311 clear_pending (EV_A_ (W)w); 3475 clear_pending (EV_A_ (W)w);
3312 if (expect_false (!ev_is_active (w))) 3476 if (expect_false (!ev_is_active (w)))
3313 return; 3477 return;
3314 3478
3332 3496
3333 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
3334} 3498}
3335 3499
3336void noinline 3500void noinline
3337ev_periodic_again (EV_P_ ev_periodic *w) 3501ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3338{ 3502{
3339 /* TODO: use adjustheap and recalculation */ 3503 /* TODO: use adjustheap and recalculation */
3340 ev_periodic_stop (EV_A_ w); 3504 ev_periodic_stop (EV_A_ w);
3341 ev_periodic_start (EV_A_ w); 3505 ev_periodic_start (EV_A_ w);
3342} 3506}
3347#endif 3511#endif
3348 3512
3349#if EV_SIGNAL_ENABLE 3513#if EV_SIGNAL_ENABLE
3350 3514
3351void noinline 3515void noinline
3352ev_signal_start (EV_P_ ev_signal *w) 3516ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3353{ 3517{
3354 if (expect_false (ev_is_active (w))) 3518 if (expect_false (ev_is_active (w)))
3355 return; 3519 return;
3356 3520
3357 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3521 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3428 3592
3429 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
3430} 3594}
3431 3595
3432void noinline 3596void noinline
3433ev_signal_stop (EV_P_ ev_signal *w) 3597ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3434{ 3598{
3435 clear_pending (EV_A_ (W)w); 3599 clear_pending (EV_A_ (W)w);
3436 if (expect_false (!ev_is_active (w))) 3600 if (expect_false (!ev_is_active (w)))
3437 return; 3601 return;
3438 3602
3469#endif 3633#endif
3470 3634
3471#if EV_CHILD_ENABLE 3635#if EV_CHILD_ENABLE
3472 3636
3473void 3637void
3474ev_child_start (EV_P_ ev_child *w) 3638ev_child_start (EV_P_ ev_child *w) EV_THROW
3475{ 3639{
3476#if EV_MULTIPLICITY 3640#if EV_MULTIPLICITY
3477 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3641 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3478#endif 3642#endif
3479 if (expect_false (ev_is_active (w))) 3643 if (expect_false (ev_is_active (w)))
3486 3650
3487 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
3488} 3652}
3489 3653
3490void 3654void
3491ev_child_stop (EV_P_ ev_child *w) 3655ev_child_stop (EV_P_ ev_child *w) EV_THROW
3492{ 3656{
3493 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
3494 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
3495 return; 3659 return;
3496 3660
3663} 3827}
3664 3828
3665inline_size int 3829inline_size int
3666infy_newfd (void) 3830infy_newfd (void)
3667{ 3831{
3668#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3832#if defined IN_CLOEXEC && defined IN_NONBLOCK
3669 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3833 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3670 if (fd >= 0) 3834 if (fd >= 0)
3671 return fd; 3835 return fd;
3672#endif 3836#endif
3673 return inotify_init (); 3837 return inotify_init ();
3748#else 3912#else
3749# define EV_LSTAT(p,b) lstat (p, b) 3913# define EV_LSTAT(p,b) lstat (p, b)
3750#endif 3914#endif
3751 3915
3752void 3916void
3753ev_stat_stat (EV_P_ ev_stat *w) 3917ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3754{ 3918{
3755 if (lstat (w->path, &w->attr) < 0) 3919 if (lstat (w->path, &w->attr) < 0)
3756 w->attr.st_nlink = 0; 3920 w->attr.st_nlink = 0;
3757 else if (!w->attr.st_nlink) 3921 else if (!w->attr.st_nlink)
3758 w->attr.st_nlink = 1; 3922 w->attr.st_nlink = 1;
3797 ev_feed_event (EV_A_ w, EV_STAT); 3961 ev_feed_event (EV_A_ w, EV_STAT);
3798 } 3962 }
3799} 3963}
3800 3964
3801void 3965void
3802ev_stat_start (EV_P_ ev_stat *w) 3966ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3803{ 3967{
3804 if (expect_false (ev_is_active (w))) 3968 if (expect_false (ev_is_active (w)))
3805 return; 3969 return;
3806 3970
3807 ev_stat_stat (EV_A_ w); 3971 ev_stat_stat (EV_A_ w);
3828 3992
3829 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
3830} 3994}
3831 3995
3832void 3996void
3833ev_stat_stop (EV_P_ ev_stat *w) 3997ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3834{ 3998{
3835 clear_pending (EV_A_ (W)w); 3999 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w))) 4000 if (expect_false (!ev_is_active (w)))
3837 return; 4001 return;
3838 4002
3854} 4018}
3855#endif 4019#endif
3856 4020
3857#if EV_IDLE_ENABLE 4021#if EV_IDLE_ENABLE
3858void 4022void
3859ev_idle_start (EV_P_ ev_idle *w) 4023ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3860{ 4024{
3861 if (expect_false (ev_is_active (w))) 4025 if (expect_false (ev_is_active (w)))
3862 return; 4026 return;
3863 4027
3864 pri_adjust (EV_A_ (W)w); 4028 pri_adjust (EV_A_ (W)w);
3877 4041
3878 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3879} 4043}
3880 4044
3881void 4045void
3882ev_idle_stop (EV_P_ ev_idle *w) 4046ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3883{ 4047{
3884 clear_pending (EV_A_ (W)w); 4048 clear_pending (EV_A_ (W)w);
3885 if (expect_false (!ev_is_active (w))) 4049 if (expect_false (!ev_is_active (w)))
3886 return; 4050 return;
3887 4051
3901} 4065}
3902#endif 4066#endif
3903 4067
3904#if EV_PREPARE_ENABLE 4068#if EV_PREPARE_ENABLE
3905void 4069void
3906ev_prepare_start (EV_P_ ev_prepare *w) 4070ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3907{ 4071{
3908 if (expect_false (ev_is_active (w))) 4072 if (expect_false (ev_is_active (w)))
3909 return; 4073 return;
3910 4074
3911 EV_FREQUENT_CHECK; 4075 EV_FREQUENT_CHECK;
3916 4080
3917 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3918} 4082}
3919 4083
3920void 4084void
3921ev_prepare_stop (EV_P_ ev_prepare *w) 4085ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3922{ 4086{
3923 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3924 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3925 return; 4089 return;
3926 4090
3939} 4103}
3940#endif 4104#endif
3941 4105
3942#if EV_CHECK_ENABLE 4106#if EV_CHECK_ENABLE
3943void 4107void
3944ev_check_start (EV_P_ ev_check *w) 4108ev_check_start (EV_P_ ev_check *w) EV_THROW
3945{ 4109{
3946 if (expect_false (ev_is_active (w))) 4110 if (expect_false (ev_is_active (w)))
3947 return; 4111 return;
3948 4112
3949 EV_FREQUENT_CHECK; 4113 EV_FREQUENT_CHECK;
3954 4118
3955 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3956} 4120}
3957 4121
3958void 4122void
3959ev_check_stop (EV_P_ ev_check *w) 4123ev_check_stop (EV_P_ ev_check *w) EV_THROW
3960{ 4124{
3961 clear_pending (EV_A_ (W)w); 4125 clear_pending (EV_A_ (W)w);
3962 if (expect_false (!ev_is_active (w))) 4126 if (expect_false (!ev_is_active (w)))
3963 return; 4127 return;
3964 4128
3977} 4141}
3978#endif 4142#endif
3979 4143
3980#if EV_EMBED_ENABLE 4144#if EV_EMBED_ENABLE
3981void noinline 4145void noinline
3982ev_embed_sweep (EV_P_ ev_embed *w) 4146ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3983{ 4147{
3984 ev_run (w->other, EVRUN_NOWAIT); 4148 ev_run (w->other, EVRUN_NOWAIT);
3985} 4149}
3986 4150
3987static void 4151static void
4035 ev_idle_stop (EV_A_ idle); 4199 ev_idle_stop (EV_A_ idle);
4036} 4200}
4037#endif 4201#endif
4038 4202
4039void 4203void
4040ev_embed_start (EV_P_ ev_embed *w) 4204ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4041{ 4205{
4042 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
4043 return; 4207 return;
4044 4208
4045 { 4209 {
4066 4230
4067 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
4068} 4232}
4069 4233
4070void 4234void
4071ev_embed_stop (EV_P_ ev_embed *w) 4235ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4072{ 4236{
4073 clear_pending (EV_A_ (W)w); 4237 clear_pending (EV_A_ (W)w);
4074 if (expect_false (!ev_is_active (w))) 4238 if (expect_false (!ev_is_active (w)))
4075 return; 4239 return;
4076 4240
4086} 4250}
4087#endif 4251#endif
4088 4252
4089#if EV_FORK_ENABLE 4253#if EV_FORK_ENABLE
4090void 4254void
4091ev_fork_start (EV_P_ ev_fork *w) 4255ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4092{ 4256{
4093 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
4094 return; 4258 return;
4095 4259
4096 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
4101 4265
4102 EV_FREQUENT_CHECK; 4266 EV_FREQUENT_CHECK;
4103} 4267}
4104 4268
4105void 4269void
4106ev_fork_stop (EV_P_ ev_fork *w) 4270ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4107{ 4271{
4108 clear_pending (EV_A_ (W)w); 4272 clear_pending (EV_A_ (W)w);
4109 if (expect_false (!ev_is_active (w))) 4273 if (expect_false (!ev_is_active (w)))
4110 return; 4274 return;
4111 4275
4124} 4288}
4125#endif 4289#endif
4126 4290
4127#if EV_CLEANUP_ENABLE 4291#if EV_CLEANUP_ENABLE
4128void 4292void
4129ev_cleanup_start (EV_P_ ev_cleanup *w) 4293ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4130{ 4294{
4131 if (expect_false (ev_is_active (w))) 4295 if (expect_false (ev_is_active (w)))
4132 return; 4296 return;
4133 4297
4134 EV_FREQUENT_CHECK; 4298 EV_FREQUENT_CHECK;
4141 ev_unref (EV_A); 4305 ev_unref (EV_A);
4142 EV_FREQUENT_CHECK; 4306 EV_FREQUENT_CHECK;
4143} 4307}
4144 4308
4145void 4309void
4146ev_cleanup_stop (EV_P_ ev_cleanup *w) 4310ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4147{ 4311{
4148 clear_pending (EV_A_ (W)w); 4312 clear_pending (EV_A_ (W)w);
4149 if (expect_false (!ev_is_active (w))) 4313 if (expect_false (!ev_is_active (w)))
4150 return; 4314 return;
4151 4315
4165} 4329}
4166#endif 4330#endif
4167 4331
4168#if EV_ASYNC_ENABLE 4332#if EV_ASYNC_ENABLE
4169void 4333void
4170ev_async_start (EV_P_ ev_async *w) 4334ev_async_start (EV_P_ ev_async *w) EV_THROW
4171{ 4335{
4172 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
4173 return; 4337 return;
4174 4338
4175 w->sent = 0; 4339 w->sent = 0;
4184 4348
4185 EV_FREQUENT_CHECK; 4349 EV_FREQUENT_CHECK;
4186} 4350}
4187 4351
4188void 4352void
4189ev_async_stop (EV_P_ ev_async *w) 4353ev_async_stop (EV_P_ ev_async *w) EV_THROW
4190{ 4354{
4191 clear_pending (EV_A_ (W)w); 4355 clear_pending (EV_A_ (W)w);
4192 if (expect_false (!ev_is_active (w))) 4356 if (expect_false (!ev_is_active (w)))
4193 return; 4357 return;
4194 4358
4205 4369
4206 EV_FREQUENT_CHECK; 4370 EV_FREQUENT_CHECK;
4207} 4371}
4208 4372
4209void 4373void
4210ev_async_send (EV_P_ ev_async *w) 4374ev_async_send (EV_P_ ev_async *w) EV_THROW
4211{ 4375{
4212 w->sent = 1; 4376 w->sent = 1;
4213 evpipe_write (EV_A_ &async_pending); 4377 evpipe_write (EV_A_ &async_pending);
4214} 4378}
4215#endif 4379#endif
4252 4416
4253 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4417 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4254} 4418}
4255 4419
4256void 4420void
4257ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4421ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4258{ 4422{
4259 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4423 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4260 4424
4261 if (expect_false (!once)) 4425 if (expect_false (!once))
4262 { 4426 {
4284 4448
4285/*****************************************************************************/ 4449/*****************************************************************************/
4286 4450
4287#if EV_WALK_ENABLE 4451#if EV_WALK_ENABLE
4288void ecb_cold 4452void ecb_cold
4289ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4453ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4290{ 4454{
4291 int i, j; 4455 int i, j;
4292 ev_watcher_list *wl, *wn; 4456 ev_watcher_list *wl, *wn;
4293 4457
4294 if (types & (EV_IO | EV_EMBED)) 4458 if (types & (EV_IO | EV_EMBED))
4400 4564
4401#if EV_MULTIPLICITY 4565#if EV_MULTIPLICITY
4402 #include "ev_wrap.h" 4566 #include "ev_wrap.h"
4403#endif 4567#endif
4404 4568
4405EV_CPP(})
4406

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