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Comparing libev/ev.c (file contents):
Revision 1.395 by root, Wed Aug 24 16:08:17 2011 UTC vs.
Revision 1.438 by root, Tue May 29 21:03:44 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); }) */ 626 /*#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 ); }) */ 627 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 628 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 629 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 630 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 631 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 632 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 633 #elif defined _WIN32
578 #include <WinNT.h> 634 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 635 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
636 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
637 #include <mbarrier.h>
638 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
639 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
640 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
641 #elif __xlC__
642 #define ECB_MEMORY_FENCE __sync ()
643 #endif
644#endif
645
646#ifndef ECB_MEMORY_FENCE
647 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
648 /* we assume that these memory fences work on all variables/all memory accesses, */
649 /* not just C11 atomics and atomic accesses */
650 #include <stdatomic.h>
651 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */
652 /* simple barrier semantics. That means we need to take out thor's hammer. */
653 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
654 #endif
580 #endif 655 #endif
581#endif 656#endif
582 657
583#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 659 #if !ECB_AVOID_PTHREADS
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 671 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) 672 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 673 #endif
599#endif 674#endif
600 675
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 676#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 677 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 678#endif
604 679
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 682#endif
608 683
609/*****************************************************************************/ 684/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 685
613#if __cplusplus 686#if __cplusplus
614 #define ecb_inline static inline 687 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 688#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 689 #define ecb_inline static __inline__
655#elif ECB_GCC_VERSION(3,0) 728#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 729 #define ecb_decltype(x) __typeof(x)
657#endif 730#endif
658 731
659#define ecb_noinline ecb_attribute ((__noinline__)) 732#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 733#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 734#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 735#define ecb_pure ecb_attribute ((__pure__))
736
737#if ECB_C11
738 #define ecb_noreturn _Noreturn
739#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif
664 742
665#if ECB_GCC_VERSION(4,3) 743#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 744 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 745 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 746 #define ecb_cold ecb_attribute ((__cold__))
759 837
760 return r + ecb_ld32 (x); 838 return r + ecb_ld32 (x);
761 } 839 }
762#endif 840#endif
763 841
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
849{
850 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852}
853
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
856{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8);
861
862 return x;
863}
864
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
867{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
872 x = ( x >> 16 ) | ( x << 16);
873
874 return x;
875}
876
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 877/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 878/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 880ecb_function_ int
768ecb_popcount64 (uint64_t x) 881ecb_popcount64 (uint64_t x)
817 930
818#if ECB_GCC_VERSION(4,5) 931#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 932 #define ecb_unreachable() __builtin_unreachable ()
820#else 933#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 934 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 935 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 936 ecb_inline void ecb_unreachable (void) { }
824#endif 937#endif
825 938
826/* try to tell the compiler that some condition is definitely true */ 939/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
828 941
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 943ecb_inline unsigned char
831ecb_byteorder_helper (void) 944ecb_byteorder_helper (void)
832{ 945{
833 const uint32_t u = 0x11223344; 946 const uint32_t u = 0x11223344;
834 return *(unsigned char *)&u; 947 return *(unsigned char *)&u;
835} 948}
836 949
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 950ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 952ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 954
842#if ECB_GCC_VERSION(3,0) || ECB_C99 955#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 957#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif
960
961#if __cplusplus
962 template<typename T>
963 static inline T ecb_div_rd (T val, T div)
964 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 }
967 template<typename T>
968 static inline T ecb_div_ru (T val, T div)
969 {
970 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
971 }
972#else
973 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
974 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 975#endif
847 976
848#if ecb_cplusplus_does_not_suck 977#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) */ 978 /* 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> 979 template<typename T, int N>
859#endif 988#endif
860 989
861/* ECB.H END */ 990/* ECB.H END */
862 991
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
993/* if your architecture doesn't need memory fences, e.g. because it is
994 * single-cpu/core, or if you use libev in a project that doesn't use libev
995 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
996 * libev, in which cases the memory fences become nops.
997 * alternatively, you can remove this #error and link against libpthread,
998 * which will then provide the memory fences.
999 */
1000# error "memory fences not defined for your architecture, please report"
1001#endif
1002
864# undef ECB_MEMORY_FENCE 1003#ifndef ECB_MEMORY_FENCE
865# undef ECB_MEMORY_FENCE_ACQUIRE 1004# define ECB_MEMORY_FENCE do { } while (0)
866# undef ECB_MEMORY_FENCE_RELEASE 1005# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1006# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
867#endif 1007#endif
868 1008
869#define expect_false(cond) ecb_expect_false (cond) 1009#define expect_false(cond) ecb_expect_false (cond)
870#define expect_true(cond) ecb_expect_true (cond) 1010#define expect_true(cond) ecb_expect_true (cond)
871#define noinline ecb_noinline 1011#define noinline ecb_noinline
1018{ 1158{
1019 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
1020} 1160}
1021#endif 1161#endif
1022 1162
1023static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
1024 1164
1025void ecb_cold 1165void ecb_cold
1026ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1027{ 1167{
1028 syserr_cb = cb; 1168 syserr_cb = cb;
1029} 1169}
1030 1170
1031static void noinline ecb_cold 1171static void noinline ecb_cold
1049 abort (); 1189 abort ();
1050 } 1190 }
1051} 1191}
1052 1192
1053static void * 1193static void *
1054ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
1055{ 1195{
1056#if __GLIBC__ 1196#if __GLIBC__
1057 return realloc (ptr, size); 1197 return realloc (ptr, size);
1058#else 1198#else
1059 /* some systems, notably openbsd and darwin, fail to properly 1199 /* some systems, notably openbsd and darwin, fail to properly
1067 free (ptr); 1207 free (ptr);
1068 return 0; 1208 return 0;
1069#endif 1209#endif
1070} 1210}
1071 1211
1072static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1212static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1073 1213
1074void ecb_cold 1214void ecb_cold
1075ev_set_allocator (void *(*cb)(void *ptr, long size)) 1215ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1076{ 1216{
1077 alloc = cb; 1217 alloc = cb;
1078} 1218}
1079 1219
1080inline_speed void * 1220inline_speed void *
1168 #undef VAR 1308 #undef VAR
1169 }; 1309 };
1170 #include "ev_wrap.h" 1310 #include "ev_wrap.h"
1171 1311
1172 static struct ev_loop default_loop_struct; 1312 static struct ev_loop default_loop_struct;
1173 struct ev_loop *ev_default_loop_ptr; 1313 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1174 1314
1175#else 1315#else
1176 1316
1177 ev_tstamp ev_rt_now; 1317 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; 1318 #define VAR(name,decl) static decl;
1179 #include "ev_vars.h" 1319 #include "ev_vars.h"
1180 #undef VAR 1320 #undef VAR
1181 1321
1182 static int ev_default_loop_ptr; 1322 static int ev_default_loop_ptr;
1197 1337
1198/*****************************************************************************/ 1338/*****************************************************************************/
1199 1339
1200#ifndef EV_HAVE_EV_TIME 1340#ifndef EV_HAVE_EV_TIME
1201ev_tstamp 1341ev_tstamp
1202ev_time (void) 1342ev_time (void) EV_THROW
1203{ 1343{
1204#if EV_USE_REALTIME 1344#if EV_USE_REALTIME
1205 if (expect_true (have_realtime)) 1345 if (expect_true (have_realtime))
1206 { 1346 {
1207 struct timespec ts; 1347 struct timespec ts;
1231 return ev_time (); 1371 return ev_time ();
1232} 1372}
1233 1373
1234#if EV_MULTIPLICITY 1374#if EV_MULTIPLICITY
1235ev_tstamp 1375ev_tstamp
1236ev_now (EV_P) 1376ev_now (EV_P) EV_THROW
1237{ 1377{
1238 return ev_rt_now; 1378 return ev_rt_now;
1239} 1379}
1240#endif 1380#endif
1241 1381
1242void 1382void
1243ev_sleep (ev_tstamp delay) 1383ev_sleep (ev_tstamp delay) EV_THROW
1244{ 1384{
1245 if (delay > 0.) 1385 if (delay > 0.)
1246 { 1386 {
1247#if EV_USE_NANOSLEEP 1387#if EV_USE_NANOSLEEP
1248 struct timespec ts; 1388 struct timespec ts;
1249 1389
1250 EV_TS_SET (ts, delay); 1390 EV_TS_SET (ts, delay);
1251 nanosleep (&ts, 0); 1391 nanosleep (&ts, 0);
1252#elif defined(_WIN32) 1392#elif defined _WIN32
1253 Sleep ((unsigned long)(delay * 1e3)); 1393 Sleep ((unsigned long)(delay * 1e3));
1254#else 1394#else
1255 struct timeval tv; 1395 struct timeval tv;
1256 1396
1257 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1397 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1276 1416
1277 do 1417 do
1278 ncur <<= 1; 1418 ncur <<= 1;
1279 while (cnt > ncur); 1419 while (cnt > ncur);
1280 1420
1281 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1421 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1282 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1422 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1283 { 1423 {
1284 ncur *= elem; 1424 ncur *= elem;
1285 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1425 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1286 ncur = ncur - sizeof (void *) * 4; 1426 ncur = ncur - sizeof (void *) * 4;
1329pendingcb (EV_P_ ev_prepare *w, int revents) 1469pendingcb (EV_P_ ev_prepare *w, int revents)
1330{ 1470{
1331} 1471}
1332 1472
1333void noinline 1473void noinline
1334ev_feed_event (EV_P_ void *w, int revents) 1474ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1335{ 1475{
1336 W w_ = (W)w; 1476 W w_ = (W)w;
1337 int pri = ABSPRI (w_); 1477 int pri = ABSPRI (w_);
1338 1478
1339 if (expect_false (w_->pending)) 1479 if (expect_false (w_->pending))
1343 w_->pending = ++pendingcnt [pri]; 1483 w_->pending = ++pendingcnt [pri];
1344 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1484 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1345 pendings [pri][w_->pending - 1].w = w_; 1485 pendings [pri][w_->pending - 1].w = w_;
1346 pendings [pri][w_->pending - 1].events = revents; 1486 pendings [pri][w_->pending - 1].events = revents;
1347 } 1487 }
1488
1489 pendingpri = NUMPRI - 1;
1348} 1490}
1349 1491
1350inline_speed void 1492inline_speed void
1351feed_reverse (EV_P_ W w) 1493feed_reverse (EV_P_ W w)
1352{ 1494{
1398 if (expect_true (!anfd->reify)) 1540 if (expect_true (!anfd->reify))
1399 fd_event_nocheck (EV_A_ fd, revents); 1541 fd_event_nocheck (EV_A_ fd, revents);
1400} 1542}
1401 1543
1402void 1544void
1403ev_feed_fd_event (EV_P_ int fd, int revents) 1545ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1404{ 1546{
1405 if (fd >= 0 && fd < anfdmax) 1547 if (fd >= 0 && fd < anfdmax)
1406 fd_event_nocheck (EV_A_ fd, revents); 1548 fd_event_nocheck (EV_A_ fd, revents);
1407} 1549}
1408 1550
1757} 1899}
1758 1900
1759inline_speed void 1901inline_speed void
1760evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1902evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1761{ 1903{
1904 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1905
1762 if (expect_true (*flag)) 1906 if (expect_true (*flag))
1763 return; 1907 return;
1764 1908
1765 *flag = 1; 1909 *flag = 1;
1766
1767 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 1910 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1768 1911
1769 pipe_write_skipped = 1; 1912 pipe_write_skipped = 1;
1770 1913
1771 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ 1914 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1772 1915
1773 if (pipe_write_wanted) 1916 if (pipe_write_wanted)
1774 { 1917 {
1775 int old_errno; 1918 int old_errno;
1776 1919
1777 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 1920 pipe_write_skipped = 0;
1921 ECB_MEMORY_FENCE_RELEASE;
1778 1922
1779 old_errno = errno; /* save errno because write will clobber it */ 1923 old_errno = errno; /* save errno because write will clobber it */
1780 1924
1781#if EV_USE_EVENTFD 1925#if EV_USE_EVENTFD
1782 if (evfd >= 0) 1926 if (evfd >= 0)
1785 write (evfd, &counter, sizeof (uint64_t)); 1929 write (evfd, &counter, sizeof (uint64_t));
1786 } 1930 }
1787 else 1931 else
1788#endif 1932#endif
1789 { 1933 {
1790 /* win32 people keep sending patches that change this write() to send() */ 1934#ifdef _WIN32
1791 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1935 WSABUF buf;
1792 /* so when you think this write should be a send instead, please find out */ 1936 DWORD sent;
1793 /* where your send() is from - it's definitely not the microsoft send, and */ 1937 buf.buf = &buf;
1794 /* tell me. thank you. */ 1938 buf.len = 1;
1939 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1940#else
1795 write (evpipe [1], &(evpipe [1]), 1); 1941 write (evpipe [1], &(evpipe [1]), 1);
1942#endif
1796 } 1943 }
1797 1944
1798 errno = old_errno; 1945 errno = old_errno;
1799 } 1946 }
1800} 1947}
1815 read (evfd, &counter, sizeof (uint64_t)); 1962 read (evfd, &counter, sizeof (uint64_t));
1816 } 1963 }
1817 else 1964 else
1818#endif 1965#endif
1819 { 1966 {
1820 char dummy; 1967 char dummy[4];
1821 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1968#ifdef _WIN32
1969 WSABUF buf;
1970 DWORD recvd;
1971 DWORD flags = 0;
1972 buf.buf = dummy;
1973 buf.len = sizeof (dummy);
1974 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1975#else
1822 read (evpipe [0], &dummy, 1); 1976 read (evpipe [0], &dummy, sizeof (dummy));
1977#endif
1823 } 1978 }
1824 } 1979 }
1825 1980
1826 pipe_write_skipped = 0; 1981 pipe_write_skipped = 0;
1982
1983 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1827 1984
1828#if EV_SIGNAL_ENABLE 1985#if EV_SIGNAL_ENABLE
1829 if (sig_pending) 1986 if (sig_pending)
1830 { 1987 {
1831 sig_pending = 0; 1988 sig_pending = 0;
1989
1990 ECB_MEMORY_FENCE;
1832 1991
1833 for (i = EV_NSIG - 1; i--; ) 1992 for (i = EV_NSIG - 1; i--; )
1834 if (expect_false (signals [i].pending)) 1993 if (expect_false (signals [i].pending))
1835 ev_feed_signal_event (EV_A_ i + 1); 1994 ev_feed_signal_event (EV_A_ i + 1);
1836 } 1995 }
1838 1997
1839#if EV_ASYNC_ENABLE 1998#if EV_ASYNC_ENABLE
1840 if (async_pending) 1999 if (async_pending)
1841 { 2000 {
1842 async_pending = 0; 2001 async_pending = 0;
2002
2003 ECB_MEMORY_FENCE;
1843 2004
1844 for (i = asynccnt; i--; ) 2005 for (i = asynccnt; i--; )
1845 if (asyncs [i]->sent) 2006 if (asyncs [i]->sent)
1846 { 2007 {
1847 asyncs [i]->sent = 0; 2008 asyncs [i]->sent = 0;
2009 ECB_MEMORY_FENCE_RELEASE;
1848 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2010 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1849 } 2011 }
1850 } 2012 }
1851#endif 2013#endif
1852} 2014}
1853 2015
1854/*****************************************************************************/ 2016/*****************************************************************************/
1855 2017
1856void 2018void
1857ev_feed_signal (int signum) 2019ev_feed_signal (int signum) EV_THROW
1858{ 2020{
1859#if EV_MULTIPLICITY 2021#if EV_MULTIPLICITY
1860 EV_P = signals [signum - 1].loop; 2022 EV_P = signals [signum - 1].loop;
1861 2023
1862 if (!EV_A) 2024 if (!EV_A)
1879 2041
1880 ev_feed_signal (signum); 2042 ev_feed_signal (signum);
1881} 2043}
1882 2044
1883void noinline 2045void noinline
1884ev_feed_signal_event (EV_P_ int signum) 2046ev_feed_signal_event (EV_P_ int signum) EV_THROW
1885{ 2047{
1886 WL w; 2048 WL w;
1887 2049
1888 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2050 if (expect_false (signum <= 0 || signum > EV_NSIG))
1889 return; 2051 return;
1897 if (expect_false (signals [signum].loop != EV_A)) 2059 if (expect_false (signals [signum].loop != EV_A))
1898 return; 2060 return;
1899#endif 2061#endif
1900 2062
1901 signals [signum].pending = 0; 2063 signals [signum].pending = 0;
2064 ECB_MEMORY_FENCE_RELEASE;
1902 2065
1903 for (w = signals [signum].head; w; w = w->next) 2066 for (w = signals [signum].head; w; w = w->next)
1904 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2067 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1905} 2068}
1906 2069
2005#if EV_USE_SELECT 2168#if EV_USE_SELECT
2006# include "ev_select.c" 2169# include "ev_select.c"
2007#endif 2170#endif
2008 2171
2009int ecb_cold 2172int ecb_cold
2010ev_version_major (void) 2173ev_version_major (void) EV_THROW
2011{ 2174{
2012 return EV_VERSION_MAJOR; 2175 return EV_VERSION_MAJOR;
2013} 2176}
2014 2177
2015int ecb_cold 2178int ecb_cold
2016ev_version_minor (void) 2179ev_version_minor (void) EV_THROW
2017{ 2180{
2018 return EV_VERSION_MINOR; 2181 return EV_VERSION_MINOR;
2019} 2182}
2020 2183
2021/* return true if we are running with elevated privileges and should ignore env variables */ 2184/* return true if we are running with elevated privileges and should ignore env variables */
2029 || getgid () != getegid (); 2192 || getgid () != getegid ();
2030#endif 2193#endif
2031} 2194}
2032 2195
2033unsigned int ecb_cold 2196unsigned int ecb_cold
2034ev_supported_backends (void) 2197ev_supported_backends (void) EV_THROW
2035{ 2198{
2036 unsigned int flags = 0; 2199 unsigned int flags = 0;
2037 2200
2038 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2201 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2039 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2202 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2043 2206
2044 return flags; 2207 return flags;
2045} 2208}
2046 2209
2047unsigned int ecb_cold 2210unsigned int ecb_cold
2048ev_recommended_backends (void) 2211ev_recommended_backends (void) EV_THROW
2049{ 2212{
2050 unsigned int flags = ev_supported_backends (); 2213 unsigned int flags = ev_supported_backends ();
2051 2214
2052#ifndef __NetBSD__ 2215#ifndef __NetBSD__
2053 /* kqueue is borked on everything but netbsd apparently */ 2216 /* kqueue is borked on everything but netbsd apparently */
2065 2228
2066 return flags; 2229 return flags;
2067} 2230}
2068 2231
2069unsigned int ecb_cold 2232unsigned int ecb_cold
2070ev_embeddable_backends (void) 2233ev_embeddable_backends (void) EV_THROW
2071{ 2234{
2072 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2235 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2073 2236
2074 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2237 /* 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 */ 2238 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2077 2240
2078 return flags; 2241 return flags;
2079} 2242}
2080 2243
2081unsigned int 2244unsigned int
2082ev_backend (EV_P) 2245ev_backend (EV_P) EV_THROW
2083{ 2246{
2084 return backend; 2247 return backend;
2085} 2248}
2086 2249
2087#if EV_FEATURE_API 2250#if EV_FEATURE_API
2088unsigned int 2251unsigned int
2089ev_iteration (EV_P) 2252ev_iteration (EV_P) EV_THROW
2090{ 2253{
2091 return loop_count; 2254 return loop_count;
2092} 2255}
2093 2256
2094unsigned int 2257unsigned int
2095ev_depth (EV_P) 2258ev_depth (EV_P) EV_THROW
2096{ 2259{
2097 return loop_depth; 2260 return loop_depth;
2098} 2261}
2099 2262
2100void 2263void
2101ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2264ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2102{ 2265{
2103 io_blocktime = interval; 2266 io_blocktime = interval;
2104} 2267}
2105 2268
2106void 2269void
2107ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2270ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2108{ 2271{
2109 timeout_blocktime = interval; 2272 timeout_blocktime = interval;
2110} 2273}
2111 2274
2112void 2275void
2113ev_set_userdata (EV_P_ void *data) 2276ev_set_userdata (EV_P_ void *data) EV_THROW
2114{ 2277{
2115 userdata = data; 2278 userdata = data;
2116} 2279}
2117 2280
2118void * 2281void *
2119ev_userdata (EV_P) 2282ev_userdata (EV_P) EV_THROW
2120{ 2283{
2121 return userdata; 2284 return userdata;
2122} 2285}
2123 2286
2124void 2287void
2125ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2288ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2126{ 2289{
2127 invoke_cb = invoke_pending_cb; 2290 invoke_cb = invoke_pending_cb;
2128} 2291}
2129 2292
2130void 2293void
2131ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2294ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2132{ 2295{
2133 release_cb = release; 2296 release_cb = release;
2134 acquire_cb = acquire; 2297 acquire_cb = acquire;
2135} 2298}
2136#endif 2299#endif
2137 2300
2138/* initialise a loop structure, must be zero-initialised */ 2301/* initialise a loop structure, must be zero-initialised */
2139static void noinline ecb_cold 2302static void noinline ecb_cold
2140loop_init (EV_P_ unsigned int flags) 2303loop_init (EV_P_ unsigned int flags) EV_THROW
2141{ 2304{
2142 if (!backend) 2305 if (!backend)
2143 { 2306 {
2144 origflags = flags; 2307 origflags = flags;
2145 2308
2250 EV_INVOKE_PENDING; 2413 EV_INVOKE_PENDING;
2251 } 2414 }
2252#endif 2415#endif
2253 2416
2254#if EV_CHILD_ENABLE 2417#if EV_CHILD_ENABLE
2255 if (ev_is_active (&childev)) 2418 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2256 { 2419 {
2257 ev_ref (EV_A); /* child watcher */ 2420 ev_ref (EV_A); /* child watcher */
2258 ev_signal_stop (EV_A_ &childev); 2421 ev_signal_stop (EV_A_ &childev);
2259 } 2422 }
2260#endif 2423#endif
2398} 2561}
2399 2562
2400#if EV_MULTIPLICITY 2563#if EV_MULTIPLICITY
2401 2564
2402struct ev_loop * ecb_cold 2565struct ev_loop * ecb_cold
2403ev_loop_new (unsigned int flags) 2566ev_loop_new (unsigned int flags) EV_THROW
2404{ 2567{
2405 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2568 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2406 2569
2407 memset (EV_A, 0, sizeof (struct ev_loop)); 2570 memset (EV_A, 0, sizeof (struct ev_loop));
2408 loop_init (EV_A_ flags); 2571 loop_init (EV_A_ flags);
2452} 2615}
2453#endif 2616#endif
2454 2617
2455#if EV_FEATURE_API 2618#if EV_FEATURE_API
2456void ecb_cold 2619void ecb_cold
2457ev_verify (EV_P) 2620ev_verify (EV_P) EV_THROW
2458{ 2621{
2459#if EV_VERIFY 2622#if EV_VERIFY
2460 int i; 2623 int i;
2461 WL w; 2624 WL w, w2;
2462 2625
2463 assert (activecnt >= -1); 2626 assert (activecnt >= -1);
2464 2627
2465 assert (fdchangemax >= fdchangecnt); 2628 assert (fdchangemax >= fdchangecnt);
2466 for (i = 0; i < fdchangecnt; ++i) 2629 for (i = 0; i < fdchangecnt; ++i)
2467 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2630 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2468 2631
2469 assert (anfdmax >= 0); 2632 assert (anfdmax >= 0);
2470 for (i = 0; i < anfdmax; ++i) 2633 for (i = 0; i < anfdmax; ++i)
2634 {
2635 int j = 0;
2636
2471 for (w = anfds [i].head; w; w = w->next) 2637 for (w = w2 = anfds [i].head; w; w = w->next)
2472 { 2638 {
2473 verify_watcher (EV_A_ (W)w); 2639 verify_watcher (EV_A_ (W)w);
2640
2641 if (j++ & 1)
2642 {
2643 assert (("libev: io watcher list contains a loop", w != w2));
2644 w2 = w2->next;
2645 }
2646
2474 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2647 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)); 2648 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2476 } 2649 }
2650 }
2477 2651
2478 assert (timermax >= timercnt); 2652 assert (timermax >= timercnt);
2479 verify_heap (EV_A_ timers, timercnt); 2653 verify_heap (EV_A_ timers, timercnt);
2480 2654
2481#if EV_PERIODIC_ENABLE 2655#if EV_PERIODIC_ENABLE
2531#if EV_MULTIPLICITY 2705#if EV_MULTIPLICITY
2532struct ev_loop * ecb_cold 2706struct ev_loop * ecb_cold
2533#else 2707#else
2534int 2708int
2535#endif 2709#endif
2536ev_default_loop (unsigned int flags) 2710ev_default_loop (unsigned int flags) EV_THROW
2537{ 2711{
2538 if (!ev_default_loop_ptr) 2712 if (!ev_default_loop_ptr)
2539 { 2713 {
2540#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
2541 EV_P = ev_default_loop_ptr = &default_loop_struct; 2715 EV_P = ev_default_loop_ptr = &default_loop_struct;
2560 2734
2561 return ev_default_loop_ptr; 2735 return ev_default_loop_ptr;
2562} 2736}
2563 2737
2564void 2738void
2565ev_loop_fork (EV_P) 2739ev_loop_fork (EV_P) EV_THROW
2566{ 2740{
2567 postfork = 1; /* must be in line with ev_default_fork */ 2741 postfork = 1; /* must be in line with ev_default_fork */
2568} 2742}
2569 2743
2570/*****************************************************************************/ 2744/*****************************************************************************/
2574{ 2748{
2575 EV_CB_INVOKE ((W)w, revents); 2749 EV_CB_INVOKE ((W)w, revents);
2576} 2750}
2577 2751
2578unsigned int 2752unsigned int
2579ev_pending_count (EV_P) 2753ev_pending_count (EV_P) EV_THROW
2580{ 2754{
2581 int pri; 2755 int pri;
2582 unsigned int count = 0; 2756 unsigned int count = 0;
2583 2757
2584 for (pri = NUMPRI; pri--; ) 2758 for (pri = NUMPRI; pri--; )
2588} 2762}
2589 2763
2590void noinline 2764void noinline
2591ev_invoke_pending (EV_P) 2765ev_invoke_pending (EV_P)
2592{ 2766{
2593 int pri; 2767 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2594
2595 for (pri = NUMPRI; pri--; )
2596 while (pendingcnt [pri]) 2768 while (pendingcnt [pendingpri])
2597 { 2769 {
2598 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2599 2771
2600 p->w->pending = 0; 2772 p->w->pending = 0;
2601 EV_CB_INVOKE (p->w, p->events); 2773 EV_CB_INVOKE (p->w, p->events);
2602 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2603 } 2775 }
2698{ 2870{
2699 EV_FREQUENT_CHECK; 2871 EV_FREQUENT_CHECK;
2700 2872
2701 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2873 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2702 { 2874 {
2703 int feed_count = 0;
2704
2705 do 2875 do
2706 { 2876 {
2707 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2877 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2708 2878
2709 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2879 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2843 3013
2844 mn_now = ev_rt_now; 3014 mn_now = ev_rt_now;
2845 } 3015 }
2846} 3016}
2847 3017
2848void 3018int
2849ev_run (EV_P_ int flags) 3019ev_run (EV_P_ int flags)
2850{ 3020{
2851#if EV_FEATURE_API 3021#if EV_FEATURE_API
2852 ++loop_depth; 3022 ++loop_depth;
2853#endif 3023#endif
2966#endif 3136#endif
2967 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3137 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2968 backend_poll (EV_A_ waittime); 3138 backend_poll (EV_A_ waittime);
2969 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3139 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2970 3140
2971 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3141 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2972 3142
2973 if (pipe_write_skipped) 3143 if (pipe_write_skipped)
2974 { 3144 {
2975 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3145 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); 3146 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3010 loop_done = EVBREAK_CANCEL; 3180 loop_done = EVBREAK_CANCEL;
3011 3181
3012#if EV_FEATURE_API 3182#if EV_FEATURE_API
3013 --loop_depth; 3183 --loop_depth;
3014#endif 3184#endif
3185
3186 return activecnt;
3015} 3187}
3016 3188
3017void 3189void
3018ev_break (EV_P_ int how) 3190ev_break (EV_P_ int how) EV_THROW
3019{ 3191{
3020 loop_done = how; 3192 loop_done = how;
3021} 3193}
3022 3194
3023void 3195void
3024ev_ref (EV_P) 3196ev_ref (EV_P) EV_THROW
3025{ 3197{
3026 ++activecnt; 3198 ++activecnt;
3027} 3199}
3028 3200
3029void 3201void
3030ev_unref (EV_P) 3202ev_unref (EV_P) EV_THROW
3031{ 3203{
3032 --activecnt; 3204 --activecnt;
3033} 3205}
3034 3206
3035void 3207void
3036ev_now_update (EV_P) 3208ev_now_update (EV_P) EV_THROW
3037{ 3209{
3038 time_update (EV_A_ 1e100); 3210 time_update (EV_A_ 1e100);
3039} 3211}
3040 3212
3041void 3213void
3042ev_suspend (EV_P) 3214ev_suspend (EV_P) EV_THROW
3043{ 3215{
3044 ev_now_update (EV_A); 3216 ev_now_update (EV_A);
3045} 3217}
3046 3218
3047void 3219void
3048ev_resume (EV_P) 3220ev_resume (EV_P) EV_THROW
3049{ 3221{
3050 ev_tstamp mn_prev = mn_now; 3222 ev_tstamp mn_prev = mn_now;
3051 3223
3052 ev_now_update (EV_A); 3224 ev_now_update (EV_A);
3053 timers_reschedule (EV_A_ mn_now - mn_prev); 3225 timers_reschedule (EV_A_ mn_now - mn_prev);
3092 w->pending = 0; 3264 w->pending = 0;
3093 } 3265 }
3094} 3266}
3095 3267
3096int 3268int
3097ev_clear_pending (EV_P_ void *w) 3269ev_clear_pending (EV_P_ void *w) EV_THROW
3098{ 3270{
3099 W w_ = (W)w; 3271 W w_ = (W)w;
3100 int pending = w_->pending; 3272 int pending = w_->pending;
3101 3273
3102 if (expect_true (pending)) 3274 if (expect_true (pending))
3135} 3307}
3136 3308
3137/*****************************************************************************/ 3309/*****************************************************************************/
3138 3310
3139void noinline 3311void noinline
3140ev_io_start (EV_P_ ev_io *w) 3312ev_io_start (EV_P_ ev_io *w) EV_THROW
3141{ 3313{
3142 int fd = w->fd; 3314 int fd = w->fd;
3143 3315
3144 if (expect_false (ev_is_active (w))) 3316 if (expect_false (ev_is_active (w)))
3145 return; 3317 return;
3151 3323
3152 ev_start (EV_A_ (W)w, 1); 3324 ev_start (EV_A_ (W)w, 1);
3153 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3325 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3154 wlist_add (&anfds[fd].head, (WL)w); 3326 wlist_add (&anfds[fd].head, (WL)w);
3155 3327
3328 /* common bug, apparently */
3329 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3330
3156 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3331 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3157 w->events &= ~EV__IOFDSET; 3332 w->events &= ~EV__IOFDSET;
3158 3333
3159 EV_FREQUENT_CHECK; 3334 EV_FREQUENT_CHECK;
3160} 3335}
3161 3336
3162void noinline 3337void noinline
3163ev_io_stop (EV_P_ ev_io *w) 3338ev_io_stop (EV_P_ ev_io *w) EV_THROW
3164{ 3339{
3165 clear_pending (EV_A_ (W)w); 3340 clear_pending (EV_A_ (W)w);
3166 if (expect_false (!ev_is_active (w))) 3341 if (expect_false (!ev_is_active (w)))
3167 return; 3342 return;
3168 3343
3177 3352
3178 EV_FREQUENT_CHECK; 3353 EV_FREQUENT_CHECK;
3179} 3354}
3180 3355
3181void noinline 3356void noinline
3182ev_timer_start (EV_P_ ev_timer *w) 3357ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3183{ 3358{
3184 if (expect_false (ev_is_active (w))) 3359 if (expect_false (ev_is_active (w)))
3185 return; 3360 return;
3186 3361
3187 ev_at (w) += mn_now; 3362 ev_at (w) += mn_now;
3201 3376
3202 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3377 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3203} 3378}
3204 3379
3205void noinline 3380void noinline
3206ev_timer_stop (EV_P_ ev_timer *w) 3381ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3207{ 3382{
3208 clear_pending (EV_A_ (W)w); 3383 clear_pending (EV_A_ (W)w);
3209 if (expect_false (!ev_is_active (w))) 3384 if (expect_false (!ev_is_active (w)))
3210 return; 3385 return;
3211 3386
3231 3406
3232 EV_FREQUENT_CHECK; 3407 EV_FREQUENT_CHECK;
3233} 3408}
3234 3409
3235void noinline 3410void noinline
3236ev_timer_again (EV_P_ ev_timer *w) 3411ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3237{ 3412{
3238 EV_FREQUENT_CHECK; 3413 EV_FREQUENT_CHECK;
3414
3415 clear_pending (EV_A_ (W)w);
3239 3416
3240 if (ev_is_active (w)) 3417 if (ev_is_active (w))
3241 { 3418 {
3242 if (w->repeat) 3419 if (w->repeat)
3243 { 3420 {
3256 3433
3257 EV_FREQUENT_CHECK; 3434 EV_FREQUENT_CHECK;
3258} 3435}
3259 3436
3260ev_tstamp 3437ev_tstamp
3261ev_timer_remaining (EV_P_ ev_timer *w) 3438ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3262{ 3439{
3263 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3440 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3264} 3441}
3265 3442
3266#if EV_PERIODIC_ENABLE 3443#if EV_PERIODIC_ENABLE
3267void noinline 3444void noinline
3268ev_periodic_start (EV_P_ ev_periodic *w) 3445ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3269{ 3446{
3270 if (expect_false (ev_is_active (w))) 3447 if (expect_false (ev_is_active (w)))
3271 return; 3448 return;
3272 3449
3273 if (w->reschedule_cb) 3450 if (w->reschedule_cb)
3293 3470
3294 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3471 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3295} 3472}
3296 3473
3297void noinline 3474void noinline
3298ev_periodic_stop (EV_P_ ev_periodic *w) 3475ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3299{ 3476{
3300 clear_pending (EV_A_ (W)w); 3477 clear_pending (EV_A_ (W)w);
3301 if (expect_false (!ev_is_active (w))) 3478 if (expect_false (!ev_is_active (w)))
3302 return; 3479 return;
3303 3480
3321 3498
3322 EV_FREQUENT_CHECK; 3499 EV_FREQUENT_CHECK;
3323} 3500}
3324 3501
3325void noinline 3502void noinline
3326ev_periodic_again (EV_P_ ev_periodic *w) 3503ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3327{ 3504{
3328 /* TODO: use adjustheap and recalculation */ 3505 /* TODO: use adjustheap and recalculation */
3329 ev_periodic_stop (EV_A_ w); 3506 ev_periodic_stop (EV_A_ w);
3330 ev_periodic_start (EV_A_ w); 3507 ev_periodic_start (EV_A_ w);
3331} 3508}
3336#endif 3513#endif
3337 3514
3338#if EV_SIGNAL_ENABLE 3515#if EV_SIGNAL_ENABLE
3339 3516
3340void noinline 3517void noinline
3341ev_signal_start (EV_P_ ev_signal *w) 3518ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3342{ 3519{
3343 if (expect_false (ev_is_active (w))) 3520 if (expect_false (ev_is_active (w)))
3344 return; 3521 return;
3345 3522
3346 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3523 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3417 3594
3418 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
3419} 3596}
3420 3597
3421void noinline 3598void noinline
3422ev_signal_stop (EV_P_ ev_signal *w) 3599ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3423{ 3600{
3424 clear_pending (EV_A_ (W)w); 3601 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 3602 if (expect_false (!ev_is_active (w)))
3426 return; 3603 return;
3427 3604
3458#endif 3635#endif
3459 3636
3460#if EV_CHILD_ENABLE 3637#if EV_CHILD_ENABLE
3461 3638
3462void 3639void
3463ev_child_start (EV_P_ ev_child *w) 3640ev_child_start (EV_P_ ev_child *w) EV_THROW
3464{ 3641{
3465#if EV_MULTIPLICITY 3642#if EV_MULTIPLICITY
3466 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3643 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3467#endif 3644#endif
3468 if (expect_false (ev_is_active (w))) 3645 if (expect_false (ev_is_active (w)))
3475 3652
3476 EV_FREQUENT_CHECK; 3653 EV_FREQUENT_CHECK;
3477} 3654}
3478 3655
3479void 3656void
3480ev_child_stop (EV_P_ ev_child *w) 3657ev_child_stop (EV_P_ ev_child *w) EV_THROW
3481{ 3658{
3482 clear_pending (EV_A_ (W)w); 3659 clear_pending (EV_A_ (W)w);
3483 if (expect_false (!ev_is_active (w))) 3660 if (expect_false (!ev_is_active (w)))
3484 return; 3661 return;
3485 3662
3652} 3829}
3653 3830
3654inline_size int 3831inline_size int
3655infy_newfd (void) 3832infy_newfd (void)
3656{ 3833{
3657#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3834#if defined IN_CLOEXEC && defined IN_NONBLOCK
3658 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3835 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3659 if (fd >= 0) 3836 if (fd >= 0)
3660 return fd; 3837 return fd;
3661#endif 3838#endif
3662 return inotify_init (); 3839 return inotify_init ();
3737#else 3914#else
3738# define EV_LSTAT(p,b) lstat (p, b) 3915# define EV_LSTAT(p,b) lstat (p, b)
3739#endif 3916#endif
3740 3917
3741void 3918void
3742ev_stat_stat (EV_P_ ev_stat *w) 3919ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3743{ 3920{
3744 if (lstat (w->path, &w->attr) < 0) 3921 if (lstat (w->path, &w->attr) < 0)
3745 w->attr.st_nlink = 0; 3922 w->attr.st_nlink = 0;
3746 else if (!w->attr.st_nlink) 3923 else if (!w->attr.st_nlink)
3747 w->attr.st_nlink = 1; 3924 w->attr.st_nlink = 1;
3786 ev_feed_event (EV_A_ w, EV_STAT); 3963 ev_feed_event (EV_A_ w, EV_STAT);
3787 } 3964 }
3788} 3965}
3789 3966
3790void 3967void
3791ev_stat_start (EV_P_ ev_stat *w) 3968ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3792{ 3969{
3793 if (expect_false (ev_is_active (w))) 3970 if (expect_false (ev_is_active (w)))
3794 return; 3971 return;
3795 3972
3796 ev_stat_stat (EV_A_ w); 3973 ev_stat_stat (EV_A_ w);
3817 3994
3818 EV_FREQUENT_CHECK; 3995 EV_FREQUENT_CHECK;
3819} 3996}
3820 3997
3821void 3998void
3822ev_stat_stop (EV_P_ ev_stat *w) 3999ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3823{ 4000{
3824 clear_pending (EV_A_ (W)w); 4001 clear_pending (EV_A_ (W)w);
3825 if (expect_false (!ev_is_active (w))) 4002 if (expect_false (!ev_is_active (w)))
3826 return; 4003 return;
3827 4004
3843} 4020}
3844#endif 4021#endif
3845 4022
3846#if EV_IDLE_ENABLE 4023#if EV_IDLE_ENABLE
3847void 4024void
3848ev_idle_start (EV_P_ ev_idle *w) 4025ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3849{ 4026{
3850 if (expect_false (ev_is_active (w))) 4027 if (expect_false (ev_is_active (w)))
3851 return; 4028 return;
3852 4029
3853 pri_adjust (EV_A_ (W)w); 4030 pri_adjust (EV_A_ (W)w);
3866 4043
3867 EV_FREQUENT_CHECK; 4044 EV_FREQUENT_CHECK;
3868} 4045}
3869 4046
3870void 4047void
3871ev_idle_stop (EV_P_ ev_idle *w) 4048ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3872{ 4049{
3873 clear_pending (EV_A_ (W)w); 4050 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4051 if (expect_false (!ev_is_active (w)))
3875 return; 4052 return;
3876 4053
3890} 4067}
3891#endif 4068#endif
3892 4069
3893#if EV_PREPARE_ENABLE 4070#if EV_PREPARE_ENABLE
3894void 4071void
3895ev_prepare_start (EV_P_ ev_prepare *w) 4072ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3896{ 4073{
3897 if (expect_false (ev_is_active (w))) 4074 if (expect_false (ev_is_active (w)))
3898 return; 4075 return;
3899 4076
3900 EV_FREQUENT_CHECK; 4077 EV_FREQUENT_CHECK;
3905 4082
3906 EV_FREQUENT_CHECK; 4083 EV_FREQUENT_CHECK;
3907} 4084}
3908 4085
3909void 4086void
3910ev_prepare_stop (EV_P_ ev_prepare *w) 4087ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3911{ 4088{
3912 clear_pending (EV_A_ (W)w); 4089 clear_pending (EV_A_ (W)w);
3913 if (expect_false (!ev_is_active (w))) 4090 if (expect_false (!ev_is_active (w)))
3914 return; 4091 return;
3915 4092
3928} 4105}
3929#endif 4106#endif
3930 4107
3931#if EV_CHECK_ENABLE 4108#if EV_CHECK_ENABLE
3932void 4109void
3933ev_check_start (EV_P_ ev_check *w) 4110ev_check_start (EV_P_ ev_check *w) EV_THROW
3934{ 4111{
3935 if (expect_false (ev_is_active (w))) 4112 if (expect_false (ev_is_active (w)))
3936 return; 4113 return;
3937 4114
3938 EV_FREQUENT_CHECK; 4115 EV_FREQUENT_CHECK;
3943 4120
3944 EV_FREQUENT_CHECK; 4121 EV_FREQUENT_CHECK;
3945} 4122}
3946 4123
3947void 4124void
3948ev_check_stop (EV_P_ ev_check *w) 4125ev_check_stop (EV_P_ ev_check *w) EV_THROW
3949{ 4126{
3950 clear_pending (EV_A_ (W)w); 4127 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4128 if (expect_false (!ev_is_active (w)))
3952 return; 4129 return;
3953 4130
3966} 4143}
3967#endif 4144#endif
3968 4145
3969#if EV_EMBED_ENABLE 4146#if EV_EMBED_ENABLE
3970void noinline 4147void noinline
3971ev_embed_sweep (EV_P_ ev_embed *w) 4148ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3972{ 4149{
3973 ev_run (w->other, EVRUN_NOWAIT); 4150 ev_run (w->other, EVRUN_NOWAIT);
3974} 4151}
3975 4152
3976static void 4153static void
4024 ev_idle_stop (EV_A_ idle); 4201 ev_idle_stop (EV_A_ idle);
4025} 4202}
4026#endif 4203#endif
4027 4204
4028void 4205void
4029ev_embed_start (EV_P_ ev_embed *w) 4206ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4030{ 4207{
4031 if (expect_false (ev_is_active (w))) 4208 if (expect_false (ev_is_active (w)))
4032 return; 4209 return;
4033 4210
4034 { 4211 {
4055 4232
4056 EV_FREQUENT_CHECK; 4233 EV_FREQUENT_CHECK;
4057} 4234}
4058 4235
4059void 4236void
4060ev_embed_stop (EV_P_ ev_embed *w) 4237ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4061{ 4238{
4062 clear_pending (EV_A_ (W)w); 4239 clear_pending (EV_A_ (W)w);
4063 if (expect_false (!ev_is_active (w))) 4240 if (expect_false (!ev_is_active (w)))
4064 return; 4241 return;
4065 4242
4075} 4252}
4076#endif 4253#endif
4077 4254
4078#if EV_FORK_ENABLE 4255#if EV_FORK_ENABLE
4079void 4256void
4080ev_fork_start (EV_P_ ev_fork *w) 4257ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4081{ 4258{
4082 if (expect_false (ev_is_active (w))) 4259 if (expect_false (ev_is_active (w)))
4083 return; 4260 return;
4084 4261
4085 EV_FREQUENT_CHECK; 4262 EV_FREQUENT_CHECK;
4090 4267
4091 EV_FREQUENT_CHECK; 4268 EV_FREQUENT_CHECK;
4092} 4269}
4093 4270
4094void 4271void
4095ev_fork_stop (EV_P_ ev_fork *w) 4272ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4096{ 4273{
4097 clear_pending (EV_A_ (W)w); 4274 clear_pending (EV_A_ (W)w);
4098 if (expect_false (!ev_is_active (w))) 4275 if (expect_false (!ev_is_active (w)))
4099 return; 4276 return;
4100 4277
4113} 4290}
4114#endif 4291#endif
4115 4292
4116#if EV_CLEANUP_ENABLE 4293#if EV_CLEANUP_ENABLE
4117void 4294void
4118ev_cleanup_start (EV_P_ ev_cleanup *w) 4295ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4119{ 4296{
4120 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
4121 return; 4298 return;
4122 4299
4123 EV_FREQUENT_CHECK; 4300 EV_FREQUENT_CHECK;
4130 ev_unref (EV_A); 4307 ev_unref (EV_A);
4131 EV_FREQUENT_CHECK; 4308 EV_FREQUENT_CHECK;
4132} 4309}
4133 4310
4134void 4311void
4135ev_cleanup_stop (EV_P_ ev_cleanup *w) 4312ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4136{ 4313{
4137 clear_pending (EV_A_ (W)w); 4314 clear_pending (EV_A_ (W)w);
4138 if (expect_false (!ev_is_active (w))) 4315 if (expect_false (!ev_is_active (w)))
4139 return; 4316 return;
4140 4317
4154} 4331}
4155#endif 4332#endif
4156 4333
4157#if EV_ASYNC_ENABLE 4334#if EV_ASYNC_ENABLE
4158void 4335void
4159ev_async_start (EV_P_ ev_async *w) 4336ev_async_start (EV_P_ ev_async *w) EV_THROW
4160{ 4337{
4161 if (expect_false (ev_is_active (w))) 4338 if (expect_false (ev_is_active (w)))
4162 return; 4339 return;
4163 4340
4164 w->sent = 0; 4341 w->sent = 0;
4173 4350
4174 EV_FREQUENT_CHECK; 4351 EV_FREQUENT_CHECK;
4175} 4352}
4176 4353
4177void 4354void
4178ev_async_stop (EV_P_ ev_async *w) 4355ev_async_stop (EV_P_ ev_async *w) EV_THROW
4179{ 4356{
4180 clear_pending (EV_A_ (W)w); 4357 clear_pending (EV_A_ (W)w);
4181 if (expect_false (!ev_is_active (w))) 4358 if (expect_false (!ev_is_active (w)))
4182 return; 4359 return;
4183 4360
4194 4371
4195 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
4196} 4373}
4197 4374
4198void 4375void
4199ev_async_send (EV_P_ ev_async *w) 4376ev_async_send (EV_P_ ev_async *w) EV_THROW
4200{ 4377{
4201 w->sent = 1; 4378 w->sent = 1;
4202 evpipe_write (EV_A_ &async_pending); 4379 evpipe_write (EV_A_ &async_pending);
4203} 4380}
4204#endif 4381#endif
4241 4418
4242 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4419 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4243} 4420}
4244 4421
4245void 4422void
4246ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4423ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4247{ 4424{
4248 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4425 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4249 4426
4250 if (expect_false (!once)) 4427 if (expect_false (!once))
4251 { 4428 {
4273 4450
4274/*****************************************************************************/ 4451/*****************************************************************************/
4275 4452
4276#if EV_WALK_ENABLE 4453#if EV_WALK_ENABLE
4277void ecb_cold 4454void ecb_cold
4278ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4455ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4279{ 4456{
4280 int i, j; 4457 int i, j;
4281 ev_watcher_list *wl, *wn; 4458 ev_watcher_list *wl, *wn;
4282 4459
4283 if (types & (EV_IO | EV_EMBED)) 4460 if (types & (EV_IO | EV_EMBED))
4389 4566
4390#if EV_MULTIPLICITY 4567#if EV_MULTIPLICITY
4391 #include "ev_wrap.h" 4568 #include "ev_wrap.h"
4392#endif 4569#endif
4393 4570
4394EV_CPP(})
4395

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