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Comparing libev/ev.c (file contents):
Revision 1.394 by root, Thu Aug 4 14:49:27 2011 UTC vs.
Revision 1.439 by root, Tue May 29 21:06:11 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 __x86 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>
859#endif 985#endif
860 986
861/* ECB.H END */ 987/* ECB.H END */
862 988
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 989#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
990/* if your architecture doesn't need memory fences, e.g. because it is
991 * single-cpu/core, or if you use libev in a project that doesn't use libev
992 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
993 * libev, in which cases the memory fences become nops.
994 * alternatively, you can remove this #error and link against libpthread,
995 * which will then provide the memory fences.
996 */
997# error "memory fences not defined for your architecture, please report"
998#endif
999
864# undef ECB_MEMORY_FENCE 1000#ifndef ECB_MEMORY_FENCE
865# undef ECB_MEMORY_FENCE_ACQUIRE 1001# define ECB_MEMORY_FENCE do { } while (0)
866# undef ECB_MEMORY_FENCE_RELEASE 1002# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1003# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
867#endif 1004#endif
868 1005
869#define expect_false(cond) ecb_expect_false (cond) 1006#define expect_false(cond) ecb_expect_false (cond)
870#define expect_true(cond) ecb_expect_true (cond) 1007#define expect_true(cond) ecb_expect_true (cond)
871#define noinline ecb_noinline 1008#define noinline ecb_noinline
1018{ 1155{
1019 write (STDERR_FILENO, msg, strlen (msg)); 1156 write (STDERR_FILENO, msg, strlen (msg));
1020} 1157}
1021#endif 1158#endif
1022 1159
1023static void (*syserr_cb)(const char *msg); 1160static void (*syserr_cb)(const char *msg) EV_THROW;
1024 1161
1025void ecb_cold 1162void ecb_cold
1026ev_set_syserr_cb (void (*cb)(const char *msg)) 1163ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1027{ 1164{
1028 syserr_cb = cb; 1165 syserr_cb = cb;
1029} 1166}
1030 1167
1031static void noinline ecb_cold 1168static void noinline ecb_cold
1049 abort (); 1186 abort ();
1050 } 1187 }
1051} 1188}
1052 1189
1053static void * 1190static void *
1054ev_realloc_emul (void *ptr, long size) 1191ev_realloc_emul (void *ptr, long size) EV_THROW
1055{ 1192{
1056#if __GLIBC__ 1193#if __GLIBC__
1057 return realloc (ptr, size); 1194 return realloc (ptr, size);
1058#else 1195#else
1059 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
1067 free (ptr); 1204 free (ptr);
1068 return 0; 1205 return 0;
1069#endif 1206#endif
1070} 1207}
1071 1208
1072static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1073 1210
1074void ecb_cold 1211void ecb_cold
1075ev_set_allocator (void *(*cb)(void *ptr, long size)) 1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1076{ 1213{
1077 alloc = cb; 1214 alloc = cb;
1078} 1215}
1079 1216
1080inline_speed void * 1217inline_speed void *
1168 #undef VAR 1305 #undef VAR
1169 }; 1306 };
1170 #include "ev_wrap.h" 1307 #include "ev_wrap.h"
1171 1308
1172 static struct ev_loop default_loop_struct; 1309 static struct ev_loop default_loop_struct;
1173 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 */
1174 1311
1175#else 1312#else
1176 1313
1177 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 */
1178 #define VAR(name,decl) static decl; 1315 #define VAR(name,decl) static decl;
1179 #include "ev_vars.h" 1316 #include "ev_vars.h"
1180 #undef VAR 1317 #undef VAR
1181 1318
1182 static int ev_default_loop_ptr; 1319 static int ev_default_loop_ptr;
1197 1334
1198/*****************************************************************************/ 1335/*****************************************************************************/
1199 1336
1200#ifndef EV_HAVE_EV_TIME 1337#ifndef EV_HAVE_EV_TIME
1201ev_tstamp 1338ev_tstamp
1202ev_time (void) 1339ev_time (void) EV_THROW
1203{ 1340{
1204#if EV_USE_REALTIME 1341#if EV_USE_REALTIME
1205 if (expect_true (have_realtime)) 1342 if (expect_true (have_realtime))
1206 { 1343 {
1207 struct timespec ts; 1344 struct timespec ts;
1231 return ev_time (); 1368 return ev_time ();
1232} 1369}
1233 1370
1234#if EV_MULTIPLICITY 1371#if EV_MULTIPLICITY
1235ev_tstamp 1372ev_tstamp
1236ev_now (EV_P) 1373ev_now (EV_P) EV_THROW
1237{ 1374{
1238 return ev_rt_now; 1375 return ev_rt_now;
1239} 1376}
1240#endif 1377#endif
1241 1378
1242void 1379void
1243ev_sleep (ev_tstamp delay) 1380ev_sleep (ev_tstamp delay) EV_THROW
1244{ 1381{
1245 if (delay > 0.) 1382 if (delay > 0.)
1246 { 1383 {
1247#if EV_USE_NANOSLEEP 1384#if EV_USE_NANOSLEEP
1248 struct timespec ts; 1385 struct timespec ts;
1249 1386
1250 EV_TS_SET (ts, delay); 1387 EV_TS_SET (ts, delay);
1251 nanosleep (&ts, 0); 1388 nanosleep (&ts, 0);
1252#elif defined(_WIN32) 1389#elif defined _WIN32
1253 Sleep ((unsigned long)(delay * 1e3)); 1390 Sleep ((unsigned long)(delay * 1e3));
1254#else 1391#else
1255 struct timeval tv; 1392 struct timeval tv;
1256 1393
1257 /* 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 */
1276 1413
1277 do 1414 do
1278 ncur <<= 1; 1415 ncur <<= 1;
1279 while (cnt > ncur); 1416 while (cnt > ncur);
1280 1417
1281 /* 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 */
1282 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1419 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1283 { 1420 {
1284 ncur *= elem; 1421 ncur *= elem;
1285 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);
1286 ncur = ncur - sizeof (void *) * 4; 1423 ncur = ncur - sizeof (void *) * 4;
1329pendingcb (EV_P_ ev_prepare *w, int revents) 1466pendingcb (EV_P_ ev_prepare *w, int revents)
1330{ 1467{
1331} 1468}
1332 1469
1333void noinline 1470void noinline
1334ev_feed_event (EV_P_ void *w, int revents) 1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1335{ 1472{
1336 W w_ = (W)w; 1473 W w_ = (W)w;
1337 int pri = ABSPRI (w_); 1474 int pri = ABSPRI (w_);
1338 1475
1339 if (expect_false (w_->pending)) 1476 if (expect_false (w_->pending))
1343 w_->pending = ++pendingcnt [pri]; 1480 w_->pending = ++pendingcnt [pri];
1344 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1345 pendings [pri][w_->pending - 1].w = w_; 1482 pendings [pri][w_->pending - 1].w = w_;
1346 pendings [pri][w_->pending - 1].events = revents; 1483 pendings [pri][w_->pending - 1].events = revents;
1347 } 1484 }
1485
1486 pendingpri = NUMPRI - 1;
1348} 1487}
1349 1488
1350inline_speed void 1489inline_speed void
1351feed_reverse (EV_P_ W w) 1490feed_reverse (EV_P_ W w)
1352{ 1491{
1398 if (expect_true (!anfd->reify)) 1537 if (expect_true (!anfd->reify))
1399 fd_event_nocheck (EV_A_ fd, revents); 1538 fd_event_nocheck (EV_A_ fd, revents);
1400} 1539}
1401 1540
1402void 1541void
1403ev_feed_fd_event (EV_P_ int fd, int revents) 1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1404{ 1543{
1405 if (fd >= 0 && fd < anfdmax) 1544 if (fd >= 0 && fd < anfdmax)
1406 fd_event_nocheck (EV_A_ fd, revents); 1545 fd_event_nocheck (EV_A_ fd, revents);
1407} 1546}
1408 1547
1757} 1896}
1758 1897
1759inline_speed void 1898inline_speed void
1760evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1899evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1761{ 1900{
1901 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1902
1762 if (expect_true (*flag)) 1903 if (expect_true (*flag))
1763 return; 1904 return;
1764 1905
1765 *flag = 1; 1906 *flag = 1;
1766
1767 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 */
1768 1908
1769 pipe_write_skipped = 1; 1909 pipe_write_skipped = 1;
1770 1910
1771 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 */
1772 1912
1773 if (pipe_write_wanted) 1913 if (pipe_write_wanted)
1774 { 1914 {
1775 int old_errno; 1915 int old_errno;
1776 1916
1777 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 1917 pipe_write_skipped = 0;
1918 ECB_MEMORY_FENCE_RELEASE;
1778 1919
1779 old_errno = errno; /* save errno because write will clobber it */ 1920 old_errno = errno; /* save errno because write will clobber it */
1780 1921
1781#if EV_USE_EVENTFD 1922#if EV_USE_EVENTFD
1782 if (evfd >= 0) 1923 if (evfd >= 0)
1785 write (evfd, &counter, sizeof (uint64_t)); 1926 write (evfd, &counter, sizeof (uint64_t));
1786 } 1927 }
1787 else 1928 else
1788#endif 1929#endif
1789 { 1930 {
1790 /* win32 people keep sending patches that change this write() to send() */ 1931#ifdef _WIN32
1791 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1932 WSABUF buf;
1792 /* so when you think this write should be a send instead, please find out */ 1933 DWORD sent;
1793 /* where your send() is from - it's definitely not the microsoft send, and */ 1934 buf.buf = &buf;
1794 /* 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
1795 write (evpipe [1], &(evpipe [1]), 1); 1938 write (evpipe [1], &(evpipe [1]), 1);
1939#endif
1796 } 1940 }
1797 1941
1798 errno = old_errno; 1942 errno = old_errno;
1799 } 1943 }
1800} 1944}
1815 read (evfd, &counter, sizeof (uint64_t)); 1959 read (evfd, &counter, sizeof (uint64_t));
1816 } 1960 }
1817 else 1961 else
1818#endif 1962#endif
1819 { 1963 {
1820 char dummy; 1964 char dummy[4];
1821 /* 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
1822 read (evpipe [0], &dummy, 1); 1973 read (evpipe [0], &dummy, sizeof (dummy));
1974#endif
1823 } 1975 }
1824 } 1976 }
1825 1977
1826 pipe_write_skipped = 0; 1978 pipe_write_skipped = 0;
1979
1980 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1827 1981
1828#if EV_SIGNAL_ENABLE 1982#if EV_SIGNAL_ENABLE
1829 if (sig_pending) 1983 if (sig_pending)
1830 { 1984 {
1831 sig_pending = 0; 1985 sig_pending = 0;
1986
1987 ECB_MEMORY_FENCE;
1832 1988
1833 for (i = EV_NSIG - 1; i--; ) 1989 for (i = EV_NSIG - 1; i--; )
1834 if (expect_false (signals [i].pending)) 1990 if (expect_false (signals [i].pending))
1835 ev_feed_signal_event (EV_A_ i + 1); 1991 ev_feed_signal_event (EV_A_ i + 1);
1836 } 1992 }
1838 1994
1839#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1840 if (async_pending) 1996 if (async_pending)
1841 { 1997 {
1842 async_pending = 0; 1998 async_pending = 0;
1999
2000 ECB_MEMORY_FENCE;
1843 2001
1844 for (i = asynccnt; i--; ) 2002 for (i = asynccnt; i--; )
1845 if (asyncs [i]->sent) 2003 if (asyncs [i]->sent)
1846 { 2004 {
1847 asyncs [i]->sent = 0; 2005 asyncs [i]->sent = 0;
2006 ECB_MEMORY_FENCE_RELEASE;
1848 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2007 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1849 } 2008 }
1850 } 2009 }
1851#endif 2010#endif
1852} 2011}
1853 2012
1854/*****************************************************************************/ 2013/*****************************************************************************/
1855 2014
1856void 2015void
1857ev_feed_signal (int signum) 2016ev_feed_signal (int signum) EV_THROW
1858{ 2017{
1859#if EV_MULTIPLICITY 2018#if EV_MULTIPLICITY
1860 EV_P = signals [signum - 1].loop; 2019 EV_P = signals [signum - 1].loop;
1861 2020
1862 if (!EV_A) 2021 if (!EV_A)
1879 2038
1880 ev_feed_signal (signum); 2039 ev_feed_signal (signum);
1881} 2040}
1882 2041
1883void noinline 2042void noinline
1884ev_feed_signal_event (EV_P_ int signum) 2043ev_feed_signal_event (EV_P_ int signum) EV_THROW
1885{ 2044{
1886 WL w; 2045 WL w;
1887 2046
1888 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2047 if (expect_false (signum <= 0 || signum > EV_NSIG))
1889 return; 2048 return;
1897 if (expect_false (signals [signum].loop != EV_A)) 2056 if (expect_false (signals [signum].loop != EV_A))
1898 return; 2057 return;
1899#endif 2058#endif
1900 2059
1901 signals [signum].pending = 0; 2060 signals [signum].pending = 0;
2061 ECB_MEMORY_FENCE_RELEASE;
1902 2062
1903 for (w = signals [signum].head; w; w = w->next) 2063 for (w = signals [signum].head; w; w = w->next)
1904 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2064 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1905} 2065}
1906 2066
2005#if EV_USE_SELECT 2165#if EV_USE_SELECT
2006# include "ev_select.c" 2166# include "ev_select.c"
2007#endif 2167#endif
2008 2168
2009int ecb_cold 2169int ecb_cold
2010ev_version_major (void) 2170ev_version_major (void) EV_THROW
2011{ 2171{
2012 return EV_VERSION_MAJOR; 2172 return EV_VERSION_MAJOR;
2013} 2173}
2014 2174
2015int ecb_cold 2175int ecb_cold
2016ev_version_minor (void) 2176ev_version_minor (void) EV_THROW
2017{ 2177{
2018 return EV_VERSION_MINOR; 2178 return EV_VERSION_MINOR;
2019} 2179}
2020 2180
2021/* 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 */
2029 || getgid () != getegid (); 2189 || getgid () != getegid ();
2030#endif 2190#endif
2031} 2191}
2032 2192
2033unsigned int ecb_cold 2193unsigned int ecb_cold
2034ev_supported_backends (void) 2194ev_supported_backends (void) EV_THROW
2035{ 2195{
2036 unsigned int flags = 0; 2196 unsigned int flags = 0;
2037 2197
2038 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2039 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2043 2203
2044 return flags; 2204 return flags;
2045} 2205}
2046 2206
2047unsigned int ecb_cold 2207unsigned int ecb_cold
2048ev_recommended_backends (void) 2208ev_recommended_backends (void) EV_THROW
2049{ 2209{
2050 unsigned int flags = ev_supported_backends (); 2210 unsigned int flags = ev_supported_backends ();
2051 2211
2052#ifndef __NetBSD__ 2212#ifndef __NetBSD__
2053 /* kqueue is borked on everything but netbsd apparently */ 2213 /* kqueue is borked on everything but netbsd apparently */
2065 2225
2066 return flags; 2226 return flags;
2067} 2227}
2068 2228
2069unsigned int ecb_cold 2229unsigned int ecb_cold
2070ev_embeddable_backends (void) 2230ev_embeddable_backends (void) EV_THROW
2071{ 2231{
2072 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2232 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2073 2233
2074 /* 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 */
2075 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 */
2077 2237
2078 return flags; 2238 return flags;
2079} 2239}
2080 2240
2081unsigned int 2241unsigned int
2082ev_backend (EV_P) 2242ev_backend (EV_P) EV_THROW
2083{ 2243{
2084 return backend; 2244 return backend;
2085} 2245}
2086 2246
2087#if EV_FEATURE_API 2247#if EV_FEATURE_API
2088unsigned int 2248unsigned int
2089ev_iteration (EV_P) 2249ev_iteration (EV_P) EV_THROW
2090{ 2250{
2091 return loop_count; 2251 return loop_count;
2092} 2252}
2093 2253
2094unsigned int 2254unsigned int
2095ev_depth (EV_P) 2255ev_depth (EV_P) EV_THROW
2096{ 2256{
2097 return loop_depth; 2257 return loop_depth;
2098} 2258}
2099 2259
2100void 2260void
2101ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2102{ 2262{
2103 io_blocktime = interval; 2263 io_blocktime = interval;
2104} 2264}
2105 2265
2106void 2266void
2107ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2108{ 2268{
2109 timeout_blocktime = interval; 2269 timeout_blocktime = interval;
2110} 2270}
2111 2271
2112void 2272void
2113ev_set_userdata (EV_P_ void *data) 2273ev_set_userdata (EV_P_ void *data) EV_THROW
2114{ 2274{
2115 userdata = data; 2275 userdata = data;
2116} 2276}
2117 2277
2118void * 2278void *
2119ev_userdata (EV_P) 2279ev_userdata (EV_P) EV_THROW
2120{ 2280{
2121 return userdata; 2281 return userdata;
2122} 2282}
2123 2283
2124void 2284void
2125ev_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
2126{ 2286{
2127 invoke_cb = invoke_pending_cb; 2287 invoke_cb = invoke_pending_cb;
2128} 2288}
2129 2289
2130void 2290void
2131ev_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
2132{ 2292{
2133 release_cb = release; 2293 release_cb = release;
2134 acquire_cb = acquire; 2294 acquire_cb = acquire;
2135} 2295}
2136#endif 2296#endif
2137 2297
2138/* initialise a loop structure, must be zero-initialised */ 2298/* initialise a loop structure, must be zero-initialised */
2139static void noinline ecb_cold 2299static void noinline ecb_cold
2140loop_init (EV_P_ unsigned int flags) 2300loop_init (EV_P_ unsigned int flags) EV_THROW
2141{ 2301{
2142 if (!backend) 2302 if (!backend)
2143 { 2303 {
2144 origflags = flags; 2304 origflags = flags;
2145 2305
2250 EV_INVOKE_PENDING; 2410 EV_INVOKE_PENDING;
2251 } 2411 }
2252#endif 2412#endif
2253 2413
2254#if EV_CHILD_ENABLE 2414#if EV_CHILD_ENABLE
2255 if (ev_is_active (&childev)) 2415 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2256 { 2416 {
2257 ev_ref (EV_A); /* child watcher */ 2417 ev_ref (EV_A); /* child watcher */
2258 ev_signal_stop (EV_A_ &childev); 2418 ev_signal_stop (EV_A_ &childev);
2259 } 2419 }
2260#endif 2420#endif
2398} 2558}
2399 2559
2400#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
2401 2561
2402struct ev_loop * ecb_cold 2562struct ev_loop * ecb_cold
2403ev_loop_new (unsigned int flags) 2563ev_loop_new (unsigned int flags) EV_THROW
2404{ 2564{
2405 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2406 2566
2407 memset (EV_A, 0, sizeof (struct ev_loop)); 2567 memset (EV_A, 0, sizeof (struct ev_loop));
2408 loop_init (EV_A_ flags); 2568 loop_init (EV_A_ flags);
2452} 2612}
2453#endif 2613#endif
2454 2614
2455#if EV_FEATURE_API 2615#if EV_FEATURE_API
2456void ecb_cold 2616void ecb_cold
2457ev_verify (EV_P) 2617ev_verify (EV_P) EV_THROW
2458{ 2618{
2459#if EV_VERIFY 2619#if EV_VERIFY
2460 int i; 2620 int i;
2461 WL w; 2621 WL w, w2;
2462 2622
2463 assert (activecnt >= -1); 2623 assert (activecnt >= -1);
2464 2624
2465 assert (fdchangemax >= fdchangecnt); 2625 assert (fdchangemax >= fdchangecnt);
2466 for (i = 0; i < fdchangecnt; ++i) 2626 for (i = 0; i < fdchangecnt; ++i)
2467 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2627 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2468 2628
2469 assert (anfdmax >= 0); 2629 assert (anfdmax >= 0);
2470 for (i = 0; i < anfdmax; ++i) 2630 for (i = 0; i < anfdmax; ++i)
2631 {
2632 int j = 0;
2633
2471 for (w = anfds [i].head; w; w = w->next) 2634 for (w = w2 = anfds [i].head; w; w = w->next)
2472 { 2635 {
2473 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
2474 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));
2475 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));
2476 } 2646 }
2647 }
2477 2648
2478 assert (timermax >= timercnt); 2649 assert (timermax >= timercnt);
2479 verify_heap (EV_A_ timers, timercnt); 2650 verify_heap (EV_A_ timers, timercnt);
2480 2651
2481#if EV_PERIODIC_ENABLE 2652#if EV_PERIODIC_ENABLE
2531#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
2532struct ev_loop * ecb_cold 2703struct ev_loop * ecb_cold
2533#else 2704#else
2534int 2705int
2535#endif 2706#endif
2536ev_default_loop (unsigned int flags) 2707ev_default_loop (unsigned int flags) EV_THROW
2537{ 2708{
2538 if (!ev_default_loop_ptr) 2709 if (!ev_default_loop_ptr)
2539 { 2710 {
2540#if EV_MULTIPLICITY 2711#if EV_MULTIPLICITY
2541 EV_P = ev_default_loop_ptr = &default_loop_struct; 2712 EV_P = ev_default_loop_ptr = &default_loop_struct;
2560 2731
2561 return ev_default_loop_ptr; 2732 return ev_default_loop_ptr;
2562} 2733}
2563 2734
2564void 2735void
2565ev_loop_fork (EV_P) 2736ev_loop_fork (EV_P) EV_THROW
2566{ 2737{
2567 postfork = 1; /* must be in line with ev_default_fork */ 2738 postfork = 1; /* must be in line with ev_default_fork */
2568} 2739}
2569 2740
2570/*****************************************************************************/ 2741/*****************************************************************************/
2574{ 2745{
2575 EV_CB_INVOKE ((W)w, revents); 2746 EV_CB_INVOKE ((W)w, revents);
2576} 2747}
2577 2748
2578unsigned int 2749unsigned int
2579ev_pending_count (EV_P) 2750ev_pending_count (EV_P) EV_THROW
2580{ 2751{
2581 int pri; 2752 int pri;
2582 unsigned int count = 0; 2753 unsigned int count = 0;
2583 2754
2584 for (pri = NUMPRI; pri--; ) 2755 for (pri = NUMPRI; pri--; )
2588} 2759}
2589 2760
2590void noinline 2761void noinline
2591ev_invoke_pending (EV_P) 2762ev_invoke_pending (EV_P)
2592{ 2763{
2593 int pri; 2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2594
2595 for (pri = NUMPRI; pri--; )
2596 while (pendingcnt [pri]) 2765 while (pendingcnt [pendingpri])
2597 { 2766 {
2598 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2599 2768
2600 p->w->pending = 0; 2769 p->w->pending = 0;
2601 EV_CB_INVOKE (p->w, p->events); 2770 EV_CB_INVOKE (p->w, p->events);
2602 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2603 } 2772 }
2698{ 2867{
2699 EV_FREQUENT_CHECK; 2868 EV_FREQUENT_CHECK;
2700 2869
2701 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2870 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2702 { 2871 {
2703 int feed_count = 0;
2704
2705 do 2872 do
2706 { 2873 {
2707 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2708 2875
2709 /*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)));*/
2843 3010
2844 mn_now = ev_rt_now; 3011 mn_now = ev_rt_now;
2845 } 3012 }
2846} 3013}
2847 3014
2848void 3015int
2849ev_run (EV_P_ int flags) 3016ev_run (EV_P_ int flags)
2850{ 3017{
2851#if EV_FEATURE_API 3018#if EV_FEATURE_API
2852 ++loop_depth; 3019 ++loop_depth;
2853#endif 3020#endif
2966#endif 3133#endif
2967 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3134 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2968 backend_poll (EV_A_ waittime); 3135 backend_poll (EV_A_ waittime);
2969 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3136 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2970 3137
2971 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3138 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2972 3139
2973 if (pipe_write_skipped) 3140 if (pipe_write_skipped)
2974 { 3141 {
2975 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3142 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2976 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3143 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3010 loop_done = EVBREAK_CANCEL; 3177 loop_done = EVBREAK_CANCEL;
3011 3178
3012#if EV_FEATURE_API 3179#if EV_FEATURE_API
3013 --loop_depth; 3180 --loop_depth;
3014#endif 3181#endif
3182
3183 return activecnt;
3015} 3184}
3016 3185
3017void 3186void
3018ev_break (EV_P_ int how) 3187ev_break (EV_P_ int how) EV_THROW
3019{ 3188{
3020 loop_done = how; 3189 loop_done = how;
3021} 3190}
3022 3191
3023void 3192void
3024ev_ref (EV_P) 3193ev_ref (EV_P) EV_THROW
3025{ 3194{
3026 ++activecnt; 3195 ++activecnt;
3027} 3196}
3028 3197
3029void 3198void
3030ev_unref (EV_P) 3199ev_unref (EV_P) EV_THROW
3031{ 3200{
3032 --activecnt; 3201 --activecnt;
3033} 3202}
3034 3203
3035void 3204void
3036ev_now_update (EV_P) 3205ev_now_update (EV_P) EV_THROW
3037{ 3206{
3038 time_update (EV_A_ 1e100); 3207 time_update (EV_A_ 1e100);
3039} 3208}
3040 3209
3041void 3210void
3042ev_suspend (EV_P) 3211ev_suspend (EV_P) EV_THROW
3043{ 3212{
3044 ev_now_update (EV_A); 3213 ev_now_update (EV_A);
3045} 3214}
3046 3215
3047void 3216void
3048ev_resume (EV_P) 3217ev_resume (EV_P) EV_THROW
3049{ 3218{
3050 ev_tstamp mn_prev = mn_now; 3219 ev_tstamp mn_prev = mn_now;
3051 3220
3052 ev_now_update (EV_A); 3221 ev_now_update (EV_A);
3053 timers_reschedule (EV_A_ mn_now - mn_prev); 3222 timers_reschedule (EV_A_ mn_now - mn_prev);
3092 w->pending = 0; 3261 w->pending = 0;
3093 } 3262 }
3094} 3263}
3095 3264
3096int 3265int
3097ev_clear_pending (EV_P_ void *w) 3266ev_clear_pending (EV_P_ void *w) EV_THROW
3098{ 3267{
3099 W w_ = (W)w; 3268 W w_ = (W)w;
3100 int pending = w_->pending; 3269 int pending = w_->pending;
3101 3270
3102 if (expect_true (pending)) 3271 if (expect_true (pending))
3135} 3304}
3136 3305
3137/*****************************************************************************/ 3306/*****************************************************************************/
3138 3307
3139void noinline 3308void noinline
3140ev_io_start (EV_P_ ev_io *w) 3309ev_io_start (EV_P_ ev_io *w) EV_THROW
3141{ 3310{
3142 int fd = w->fd; 3311 int fd = w->fd;
3143 3312
3144 if (expect_false (ev_is_active (w))) 3313 if (expect_false (ev_is_active (w)))
3145 return; 3314 return;
3151 3320
3152 ev_start (EV_A_ (W)w, 1); 3321 ev_start (EV_A_ (W)w, 1);
3153 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3322 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3154 wlist_add (&anfds[fd].head, (WL)w); 3323 wlist_add (&anfds[fd].head, (WL)w);
3155 3324
3325 /* common bug, apparently */
3326 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3327
3156 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3328 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3157 w->events &= ~EV__IOFDSET; 3329 w->events &= ~EV__IOFDSET;
3158 3330
3159 EV_FREQUENT_CHECK; 3331 EV_FREQUENT_CHECK;
3160} 3332}
3161 3333
3162void noinline 3334void noinline
3163ev_io_stop (EV_P_ ev_io *w) 3335ev_io_stop (EV_P_ ev_io *w) EV_THROW
3164{ 3336{
3165 clear_pending (EV_A_ (W)w); 3337 clear_pending (EV_A_ (W)w);
3166 if (expect_false (!ev_is_active (w))) 3338 if (expect_false (!ev_is_active (w)))
3167 return; 3339 return;
3168 3340
3177 3349
3178 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
3179} 3351}
3180 3352
3181void noinline 3353void noinline
3182ev_timer_start (EV_P_ ev_timer *w) 3354ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3183{ 3355{
3184 if (expect_false (ev_is_active (w))) 3356 if (expect_false (ev_is_active (w)))
3185 return; 3357 return;
3186 3358
3187 ev_at (w) += mn_now; 3359 ev_at (w) += mn_now;
3201 3373
3202 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3374 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3203} 3375}
3204 3376
3205void noinline 3377void noinline
3206ev_timer_stop (EV_P_ ev_timer *w) 3378ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3207{ 3379{
3208 clear_pending (EV_A_ (W)w); 3380 clear_pending (EV_A_ (W)w);
3209 if (expect_false (!ev_is_active (w))) 3381 if (expect_false (!ev_is_active (w)))
3210 return; 3382 return;
3211 3383
3231 3403
3232 EV_FREQUENT_CHECK; 3404 EV_FREQUENT_CHECK;
3233} 3405}
3234 3406
3235void noinline 3407void noinline
3236ev_timer_again (EV_P_ ev_timer *w) 3408ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3237{ 3409{
3238 EV_FREQUENT_CHECK; 3410 EV_FREQUENT_CHECK;
3411
3412 clear_pending (EV_A_ (W)w);
3239 3413
3240 if (ev_is_active (w)) 3414 if (ev_is_active (w))
3241 { 3415 {
3242 if (w->repeat) 3416 if (w->repeat)
3243 { 3417 {
3256 3430
3257 EV_FREQUENT_CHECK; 3431 EV_FREQUENT_CHECK;
3258} 3432}
3259 3433
3260ev_tstamp 3434ev_tstamp
3261ev_timer_remaining (EV_P_ ev_timer *w) 3435ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3262{ 3436{
3263 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3437 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3264} 3438}
3265 3439
3266#if EV_PERIODIC_ENABLE 3440#if EV_PERIODIC_ENABLE
3267void noinline 3441void noinline
3268ev_periodic_start (EV_P_ ev_periodic *w) 3442ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3269{ 3443{
3270 if (expect_false (ev_is_active (w))) 3444 if (expect_false (ev_is_active (w)))
3271 return; 3445 return;
3272 3446
3273 if (w->reschedule_cb) 3447 if (w->reschedule_cb)
3293 3467
3294 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3468 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3295} 3469}
3296 3470
3297void noinline 3471void noinline
3298ev_periodic_stop (EV_P_ ev_periodic *w) 3472ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3299{ 3473{
3300 clear_pending (EV_A_ (W)w); 3474 clear_pending (EV_A_ (W)w);
3301 if (expect_false (!ev_is_active (w))) 3475 if (expect_false (!ev_is_active (w)))
3302 return; 3476 return;
3303 3477
3321 3495
3322 EV_FREQUENT_CHECK; 3496 EV_FREQUENT_CHECK;
3323} 3497}
3324 3498
3325void noinline 3499void noinline
3326ev_periodic_again (EV_P_ ev_periodic *w) 3500ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3327{ 3501{
3328 /* TODO: use adjustheap and recalculation */ 3502 /* TODO: use adjustheap and recalculation */
3329 ev_periodic_stop (EV_A_ w); 3503 ev_periodic_stop (EV_A_ w);
3330 ev_periodic_start (EV_A_ w); 3504 ev_periodic_start (EV_A_ w);
3331} 3505}
3336#endif 3510#endif
3337 3511
3338#if EV_SIGNAL_ENABLE 3512#if EV_SIGNAL_ENABLE
3339 3513
3340void noinline 3514void noinline
3341ev_signal_start (EV_P_ ev_signal *w) 3515ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3342{ 3516{
3343 if (expect_false (ev_is_active (w))) 3517 if (expect_false (ev_is_active (w)))
3344 return; 3518 return;
3345 3519
3346 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3520 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3417 3591
3418 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3419} 3593}
3420 3594
3421void noinline 3595void noinline
3422ev_signal_stop (EV_P_ ev_signal *w) 3596ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3423{ 3597{
3424 clear_pending (EV_A_ (W)w); 3598 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 3599 if (expect_false (!ev_is_active (w)))
3426 return; 3600 return;
3427 3601
3458#endif 3632#endif
3459 3633
3460#if EV_CHILD_ENABLE 3634#if EV_CHILD_ENABLE
3461 3635
3462void 3636void
3463ev_child_start (EV_P_ ev_child *w) 3637ev_child_start (EV_P_ ev_child *w) EV_THROW
3464{ 3638{
3465#if EV_MULTIPLICITY 3639#if EV_MULTIPLICITY
3466 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3640 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3467#endif 3641#endif
3468 if (expect_false (ev_is_active (w))) 3642 if (expect_false (ev_is_active (w)))
3475 3649
3476 EV_FREQUENT_CHECK; 3650 EV_FREQUENT_CHECK;
3477} 3651}
3478 3652
3479void 3653void
3480ev_child_stop (EV_P_ ev_child *w) 3654ev_child_stop (EV_P_ ev_child *w) EV_THROW
3481{ 3655{
3482 clear_pending (EV_A_ (W)w); 3656 clear_pending (EV_A_ (W)w);
3483 if (expect_false (!ev_is_active (w))) 3657 if (expect_false (!ev_is_active (w)))
3484 return; 3658 return;
3485 3659
3652} 3826}
3653 3827
3654inline_size int 3828inline_size int
3655infy_newfd (void) 3829infy_newfd (void)
3656{ 3830{
3657#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3831#if defined IN_CLOEXEC && defined IN_NONBLOCK
3658 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3832 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3659 if (fd >= 0) 3833 if (fd >= 0)
3660 return fd; 3834 return fd;
3661#endif 3835#endif
3662 return inotify_init (); 3836 return inotify_init ();
3737#else 3911#else
3738# define EV_LSTAT(p,b) lstat (p, b) 3912# define EV_LSTAT(p,b) lstat (p, b)
3739#endif 3913#endif
3740 3914
3741void 3915void
3742ev_stat_stat (EV_P_ ev_stat *w) 3916ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3743{ 3917{
3744 if (lstat (w->path, &w->attr) < 0) 3918 if (lstat (w->path, &w->attr) < 0)
3745 w->attr.st_nlink = 0; 3919 w->attr.st_nlink = 0;
3746 else if (!w->attr.st_nlink) 3920 else if (!w->attr.st_nlink)
3747 w->attr.st_nlink = 1; 3921 w->attr.st_nlink = 1;
3786 ev_feed_event (EV_A_ w, EV_STAT); 3960 ev_feed_event (EV_A_ w, EV_STAT);
3787 } 3961 }
3788} 3962}
3789 3963
3790void 3964void
3791ev_stat_start (EV_P_ ev_stat *w) 3965ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3792{ 3966{
3793 if (expect_false (ev_is_active (w))) 3967 if (expect_false (ev_is_active (w)))
3794 return; 3968 return;
3795 3969
3796 ev_stat_stat (EV_A_ w); 3970 ev_stat_stat (EV_A_ w);
3817 3991
3818 EV_FREQUENT_CHECK; 3992 EV_FREQUENT_CHECK;
3819} 3993}
3820 3994
3821void 3995void
3822ev_stat_stop (EV_P_ ev_stat *w) 3996ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3823{ 3997{
3824 clear_pending (EV_A_ (W)w); 3998 clear_pending (EV_A_ (W)w);
3825 if (expect_false (!ev_is_active (w))) 3999 if (expect_false (!ev_is_active (w)))
3826 return; 4000 return;
3827 4001
3843} 4017}
3844#endif 4018#endif
3845 4019
3846#if EV_IDLE_ENABLE 4020#if EV_IDLE_ENABLE
3847void 4021void
3848ev_idle_start (EV_P_ ev_idle *w) 4022ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3849{ 4023{
3850 if (expect_false (ev_is_active (w))) 4024 if (expect_false (ev_is_active (w)))
3851 return; 4025 return;
3852 4026
3853 pri_adjust (EV_A_ (W)w); 4027 pri_adjust (EV_A_ (W)w);
3866 4040
3867 EV_FREQUENT_CHECK; 4041 EV_FREQUENT_CHECK;
3868} 4042}
3869 4043
3870void 4044void
3871ev_idle_stop (EV_P_ ev_idle *w) 4045ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3872{ 4046{
3873 clear_pending (EV_A_ (W)w); 4047 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4048 if (expect_false (!ev_is_active (w)))
3875 return; 4049 return;
3876 4050
3890} 4064}
3891#endif 4065#endif
3892 4066
3893#if EV_PREPARE_ENABLE 4067#if EV_PREPARE_ENABLE
3894void 4068void
3895ev_prepare_start (EV_P_ ev_prepare *w) 4069ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3896{ 4070{
3897 if (expect_false (ev_is_active (w))) 4071 if (expect_false (ev_is_active (w)))
3898 return; 4072 return;
3899 4073
3900 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
3905 4079
3906 EV_FREQUENT_CHECK; 4080 EV_FREQUENT_CHECK;
3907} 4081}
3908 4082
3909void 4083void
3910ev_prepare_stop (EV_P_ ev_prepare *w) 4084ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3911{ 4085{
3912 clear_pending (EV_A_ (W)w); 4086 clear_pending (EV_A_ (W)w);
3913 if (expect_false (!ev_is_active (w))) 4087 if (expect_false (!ev_is_active (w)))
3914 return; 4088 return;
3915 4089
3928} 4102}
3929#endif 4103#endif
3930 4104
3931#if EV_CHECK_ENABLE 4105#if EV_CHECK_ENABLE
3932void 4106void
3933ev_check_start (EV_P_ ev_check *w) 4107ev_check_start (EV_P_ ev_check *w) EV_THROW
3934{ 4108{
3935 if (expect_false (ev_is_active (w))) 4109 if (expect_false (ev_is_active (w)))
3936 return; 4110 return;
3937 4111
3938 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3943 4117
3944 EV_FREQUENT_CHECK; 4118 EV_FREQUENT_CHECK;
3945} 4119}
3946 4120
3947void 4121void
3948ev_check_stop (EV_P_ ev_check *w) 4122ev_check_stop (EV_P_ ev_check *w) EV_THROW
3949{ 4123{
3950 clear_pending (EV_A_ (W)w); 4124 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4125 if (expect_false (!ev_is_active (w)))
3952 return; 4126 return;
3953 4127
3966} 4140}
3967#endif 4141#endif
3968 4142
3969#if EV_EMBED_ENABLE 4143#if EV_EMBED_ENABLE
3970void noinline 4144void noinline
3971ev_embed_sweep (EV_P_ ev_embed *w) 4145ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3972{ 4146{
3973 ev_run (w->other, EVRUN_NOWAIT); 4147 ev_run (w->other, EVRUN_NOWAIT);
3974} 4148}
3975 4149
3976static void 4150static void
4024 ev_idle_stop (EV_A_ idle); 4198 ev_idle_stop (EV_A_ idle);
4025} 4199}
4026#endif 4200#endif
4027 4201
4028void 4202void
4029ev_embed_start (EV_P_ ev_embed *w) 4203ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4030{ 4204{
4031 if (expect_false (ev_is_active (w))) 4205 if (expect_false (ev_is_active (w)))
4032 return; 4206 return;
4033 4207
4034 { 4208 {
4055 4229
4056 EV_FREQUENT_CHECK; 4230 EV_FREQUENT_CHECK;
4057} 4231}
4058 4232
4059void 4233void
4060ev_embed_stop (EV_P_ ev_embed *w) 4234ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4061{ 4235{
4062 clear_pending (EV_A_ (W)w); 4236 clear_pending (EV_A_ (W)w);
4063 if (expect_false (!ev_is_active (w))) 4237 if (expect_false (!ev_is_active (w)))
4064 return; 4238 return;
4065 4239
4075} 4249}
4076#endif 4250#endif
4077 4251
4078#if EV_FORK_ENABLE 4252#if EV_FORK_ENABLE
4079void 4253void
4080ev_fork_start (EV_P_ ev_fork *w) 4254ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4081{ 4255{
4082 if (expect_false (ev_is_active (w))) 4256 if (expect_false (ev_is_active (w)))
4083 return; 4257 return;
4084 4258
4085 EV_FREQUENT_CHECK; 4259 EV_FREQUENT_CHECK;
4090 4264
4091 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
4092} 4266}
4093 4267
4094void 4268void
4095ev_fork_stop (EV_P_ ev_fork *w) 4269ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4096{ 4270{
4097 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
4098 if (expect_false (!ev_is_active (w))) 4272 if (expect_false (!ev_is_active (w)))
4099 return; 4273 return;
4100 4274
4113} 4287}
4114#endif 4288#endif
4115 4289
4116#if EV_CLEANUP_ENABLE 4290#if EV_CLEANUP_ENABLE
4117void 4291void
4118ev_cleanup_start (EV_P_ ev_cleanup *w) 4292ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4119{ 4293{
4120 if (expect_false (ev_is_active (w))) 4294 if (expect_false (ev_is_active (w)))
4121 return; 4295 return;
4122 4296
4123 EV_FREQUENT_CHECK; 4297 EV_FREQUENT_CHECK;
4130 ev_unref (EV_A); 4304 ev_unref (EV_A);
4131 EV_FREQUENT_CHECK; 4305 EV_FREQUENT_CHECK;
4132} 4306}
4133 4307
4134void 4308void
4135ev_cleanup_stop (EV_P_ ev_cleanup *w) 4309ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4136{ 4310{
4137 clear_pending (EV_A_ (W)w); 4311 clear_pending (EV_A_ (W)w);
4138 if (expect_false (!ev_is_active (w))) 4312 if (expect_false (!ev_is_active (w)))
4139 return; 4313 return;
4140 4314
4154} 4328}
4155#endif 4329#endif
4156 4330
4157#if EV_ASYNC_ENABLE 4331#if EV_ASYNC_ENABLE
4158void 4332void
4159ev_async_start (EV_P_ ev_async *w) 4333ev_async_start (EV_P_ ev_async *w) EV_THROW
4160{ 4334{
4161 if (expect_false (ev_is_active (w))) 4335 if (expect_false (ev_is_active (w)))
4162 return; 4336 return;
4163 4337
4164 w->sent = 0; 4338 w->sent = 0;
4173 4347
4174 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
4175} 4349}
4176 4350
4177void 4351void
4178ev_async_stop (EV_P_ ev_async *w) 4352ev_async_stop (EV_P_ ev_async *w) EV_THROW
4179{ 4353{
4180 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
4181 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
4182 return; 4356 return;
4183 4357
4194 4368
4195 EV_FREQUENT_CHECK; 4369 EV_FREQUENT_CHECK;
4196} 4370}
4197 4371
4198void 4372void
4199ev_async_send (EV_P_ ev_async *w) 4373ev_async_send (EV_P_ ev_async *w) EV_THROW
4200{ 4374{
4201 w->sent = 1; 4375 w->sent = 1;
4202 evpipe_write (EV_A_ &async_pending); 4376 evpipe_write (EV_A_ &async_pending);
4203} 4377}
4204#endif 4378#endif
4241 4415
4242 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4416 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4243} 4417}
4244 4418
4245void 4419void
4246ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4420ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4247{ 4421{
4248 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4422 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4249 4423
4250 if (expect_false (!once)) 4424 if (expect_false (!once))
4251 { 4425 {
4273 4447
4274/*****************************************************************************/ 4448/*****************************************************************************/
4275 4449
4276#if EV_WALK_ENABLE 4450#if EV_WALK_ENABLE
4277void ecb_cold 4451void ecb_cold
4278ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4452ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4279{ 4453{
4280 int i, j; 4454 int i, j;
4281 ev_watcher_list *wl, *wn; 4455 ev_watcher_list *wl, *wn;
4282 4456
4283 if (types & (EV_IO | EV_EMBED)) 4457 if (types & (EV_IO | EV_EMBED))
4389 4563
4390#if EV_MULTIPLICITY 4564#if EV_MULTIPLICITY
4391 #include "ev_wrap.h" 4565 #include "ev_wrap.h"
4392#endif 4566#endif
4393 4567
4394EV_CPP(})
4395

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