ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.402 by sf-exg, Tue Dec 20 10:34:10 2011 UTC vs.
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 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
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
198
188#ifndef _WIN32 199#ifndef _WIN32
189# include <sys/time.h> 200# include <sys/time.h>
190# include <sys/wait.h> 201# include <sys/wait.h>
191# include <unistd.h> 202# include <unistd.h>
192#else 203#else
193# include <io.h> 204# include <io.h>
194# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
195# include <windows.h> 207# include <windows.h>
196# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
197# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
198# endif 210# endif
199# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
208#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
209 221
210/* 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 */
211 223
212/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
213#if defined (EV_NSIG) 225#if defined EV_NSIG
214/* use what's provided */ 226/* use what's provided */
215#elif defined (NSIG) 227#elif defined NSIG
216# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
217#elif defined(_NSIG) 229#elif defined _NSIG
218# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
219#elif defined (SIGMAX) 231#elif defined SIGMAX
220# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
221#elif defined (SIG_MAX) 233#elif defined SIG_MAX
222# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
223#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
224# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
225#elif defined (MAXSIG) 237#elif defined MAXSIG
226# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
227#elif defined (MAX_SIG) 239#elif defined MAX_SIG
228# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
229#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231#elif defined (_sys_nsig) 243#elif defined _sys_nsig
232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233#else 245#else
234# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
235/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
… …
248# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
249# endif 261# endif
250#endif 262#endif
251 263
252#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
255# else 267# else
256# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
257# endif 269# endif
258#endif 270#endif
… …
345 357
346#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
347# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
348#endif 360#endif
349 361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
376#endif
377
350/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
351/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
352#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
353# include <syscall.h> 381# include <sys/syscall.h>
354# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
355# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
358# else 386# else
… …
361# endif 389# endif
362#endif 390#endif
363 391
364/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
365 393
366#ifdef _AIX
367/* AIX has a completely broken poll.h header */
368# undef EV_USE_POLL
369# define EV_USE_POLL 0
370#endif
371
372#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
373# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
374# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
375#endif 397#endif
376 398
… …
384# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
385#endif 407#endif
386 408
387#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
388/* hp-ux has it in sys/time.h, which we unconditionally include above */ 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
389# if !defined(_WIN32) && !defined(__hpux) 411# if !defined _WIN32 && !defined __hpux
390# include <sys/select.h> 412# include <sys/select.h>
391# endif 413# endif
392#endif 414#endif
393 415
394#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
… …
397/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 419/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
398# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
399# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
400# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
401# endif 423# endif
402#endif
403
404#if EV_SELECT_IS_WINSOCKET
405# include <winsock.h>
406#endif 424#endif
407 425
408#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
409/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410# include <stdint.h> 428# include <stdint.h>
… …
467/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468/* ECB.H BEGIN */ 486/* ECB.H BEGIN */
469/* 487/*
470 * libecb - http://software.schmorp.de/pkg/libecb 488 * libecb - http://software.schmorp.de/pkg/libecb
471 * 489 *
472 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
473 * Copyright (©) 2011 Emanuele Giaquinta 491 * Copyright (©) 2011 Emanuele Giaquinta
474 * All rights reserved. 492 * All rights reserved.
475 * 493 *
476 * Redistribution and use in source and binary forms, with or without modifica- 494 * Redistribution and use in source and binary forms, with or without modifica-
477 * tion, are permitted provided that the following conditions are met: 495 * tion, are permitted provided that the following conditions are met:
… …
496 */ 514 */
497 515
498#ifndef ECB_H 516#ifndef ECB_H
499#define ECB_H 517#define ECB_H
500 518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010002
521
501#ifdef _WIN32 522#ifdef _WIN32
502 typedef signed char int8_t; 523 typedef signed char int8_t;
503 typedef unsigned char uint8_t; 524 typedef unsigned char uint8_t;
504 typedef signed short int16_t; 525 typedef signed short int16_t;
505 typedef unsigned short uint16_t; 526 typedef unsigned short uint16_t;
… …
510 typedef unsigned long long uint64_t; 531 typedef unsigned long long uint64_t;
511 #else /* _MSC_VER || __BORLANDC__ */ 532 #else /* _MSC_VER || __BORLANDC__ */
512 typedef signed __int64 int64_t; 533 typedef signed __int64 int64_t;
513 typedef unsigned __int64 uint64_t; 534 typedef unsigned __int64 uint64_t;
514 #endif 535 #endif
536 #ifdef _WIN64
537 #define ECB_PTRSIZE 8
538 typedef uint64_t uintptr_t;
539 typedef int64_t intptr_t;
540 #else
541 #define ECB_PTRSIZE 4
542 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t;
544 #endif
515#else 545#else
516 #include <inttypes.h> 546 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU
548 #define ECB_PTRSIZE 8
549 #else
550 #define ECB_PTRSIZE 4
551 #endif
517#endif 552#endif
518 553
519/* many compilers define _GNUC_ to some versions but then only implement 554/* many compilers define _GNUC_ to some versions but then only implement
520 * what their idiot authors think are the "more important" extensions, 555 * what their idiot authors think are the "more important" extensions,
521 * causing enormous grief in return for some better fake benchmark numbers. 556 * causing enormous grief in return for some better fake benchmark numbers.
522 * or so. 557 * or so.
523 * we try to detect these and simply assume they are not gcc - if they have 558 * we try to detect these and simply assume they are not gcc - if they have
524 * an issue with that they should have done it right in the first place. 559 * an issue with that they should have done it right in the first place.
525 */ 560 */
526#ifndef ECB_GCC_VERSION 561#ifndef ECB_GCC_VERSION
527 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 562 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
528 #define ECB_GCC_VERSION(major,minor) 0 563 #define ECB_GCC_VERSION(major,minor) 0
529 #else 564 #else
530 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 565 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
531 #endif 566 #endif
532#endif 567#endif
533 568
569#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
570#define ECB_C99 (__STDC_VERSION__ >= 199901L)
571#define ECB_C11 (__STDC_VERSION__ >= 201112L)
572#define ECB_CPP (__cplusplus+0)
573#define ECB_CPP11 (__cplusplus >= 201103L)
574
575#if ECB_CPP
576 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END }
579#else
580 #define ECB_EXTERN_C extern
581 #define ECB_EXTERN_C_BEG
582 #define ECB_EXTERN_C_END
583#endif
584
534/*****************************************************************************/ 585/*****************************************************************************/
535 586
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 587/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 588/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538 589
539#if ECB_NO_THREADS || ECB_NO_SMP 590#if ECB_NO_THREADS
591 #define ECB_NO_SMP 1
592#endif
593
594#if ECB_NO_SMP
540 #define ECB_MEMORY_FENCE do { } while (0) 595 #define ECB_MEMORY_FENCE do { } while (0)
541#endif 596#endif
542 597
543#ifndef ECB_MEMORY_FENCE 598#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) 599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545 #if __i386__ 600 #if __i386 || __i386__
546 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
549 #elif __amd64 604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
557 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
560 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
624 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
561 #endif 631 #endif
562 #endif 632 #endif
563#endif 633#endif
564 634
565#ifndef ECB_MEMORY_FENCE 635#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
639
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model.
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */
648
566 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
567 #define ECB_MEMORY_FENCE __sync_synchronize () 650 #define ECB_MEMORY_FENCE __sync_synchronize ()
568 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
569 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
570 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
571 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
572 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
573 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
574 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
575 #elif defined(_WIN32) 656 #elif defined _WIN32
576 #include <WinNT.h> 657 #include <WinNT.h>
577 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
663 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
664 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync ()
666 #endif
667#endif
668
669#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* we assume that these memory fences work on all variables/all memory accesses, */
672 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
578 #endif 681 #endif
579#endif 682#endif
580 683
581#ifndef ECB_MEMORY_FENCE 684#ifndef ECB_MEMORY_FENCE
582 #if !ECB_AVOID_PTHREADS 685 #if !ECB_AVOID_PTHREADS
… …
594 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 697 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
595 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
596 #endif 699 #endif
597#endif 700#endif
598 701
599#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
600 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
601#endif 704#endif
602 705
603#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
604 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
605#endif 708#endif
606 709
607/*****************************************************************************/ 710/*****************************************************************************/
608
609#define ECB_C99 (__STDC_VERSION__ >= 199901L)
610 711
611#if __cplusplus 712#if __cplusplus
612 #define ecb_inline static inline 713 #define ecb_inline static inline
613#elif ECB_GCC_VERSION(2,5) 714#elif ECB_GCC_VERSION(2,5)
614 #define ecb_inline static __inline__ 715 #define ecb_inline static __inline__
… …
653#elif ECB_GCC_VERSION(3,0) 754#elif ECB_GCC_VERSION(3,0)
654 #define ecb_decltype(x) __typeof(x) 755 #define ecb_decltype(x) __typeof(x)
655#endif 756#endif
656 757
657#define ecb_noinline ecb_attribute ((__noinline__)) 758#define ecb_noinline ecb_attribute ((__noinline__))
658#define ecb_noreturn ecb_attribute ((__noreturn__))
659#define ecb_unused ecb_attribute ((__unused__)) 759#define ecb_unused ecb_attribute ((__unused__))
660#define ecb_const ecb_attribute ((__const__)) 760#define ecb_const ecb_attribute ((__const__))
661#define ecb_pure ecb_attribute ((__pure__)) 761#define ecb_pure ecb_attribute ((__pure__))
762
763#if ECB_C11
764 #define ecb_noreturn _Noreturn
765#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif
662 768
663#if ECB_GCC_VERSION(4,3) 769#if ECB_GCC_VERSION(4,3)
664 #define ecb_artificial ecb_attribute ((__artificial__)) 770 #define ecb_artificial ecb_attribute ((__artificial__))
665 #define ecb_hot ecb_attribute ((__hot__)) 771 #define ecb_hot ecb_attribute ((__hot__))
666 #define ecb_cold ecb_attribute ((__cold__)) 772 #define ecb_cold ecb_attribute ((__cold__))
… …
757 863
758 return r + ecb_ld32 (x); 864 return r + ecb_ld32 (x);
759 } 865 }
760#endif 866#endif
761 867
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
875{
876 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878}
879
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
882{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8);
887
888 return x;
889}
890
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
893{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
898 x = ( x >> 16 ) | ( x << 16);
899
900 return x;
901}
902
762/* popcount64 is only available on 64 bit cpus as gcc builtin */ 903/* popcount64 is only available on 64 bit cpus as gcc builtin */
763/* so for this version we are lazy */ 904/* so for this version we are lazy */
764ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
765ecb_function_ int 906ecb_function_ int
766ecb_popcount64 (uint64_t x) 907ecb_popcount64 (uint64_t x)
… …
815 956
816#if ECB_GCC_VERSION(4,5) 957#if ECB_GCC_VERSION(4,5)
817 #define ecb_unreachable() __builtin_unreachable () 958 #define ecb_unreachable() __builtin_unreachable ()
818#else 959#else
819 /* this seems to work fine, but gcc always emits a warning for it :/ */ 960 /* this seems to work fine, but gcc always emits a warning for it :/ */
820 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
821 ecb_function_ void ecb_unreachable (void) { } 962 ecb_inline void ecb_unreachable (void) { }
822#endif 963#endif
823 964
824/* try to tell the compiler that some condition is definitely true */ 965/* try to tell the compiler that some condition is definitely true */
825#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
826 967
827ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
828ecb_function_ unsigned char 969ecb_inline unsigned char
829ecb_byteorder_helper (void) 970ecb_byteorder_helper (void)
830{ 971{
831 const uint32_t u = 0x11223344; 972 /* the union code still generates code under pressure in gcc, */
832 return *(unsigned char *)&u; 973 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
981 return 0x44;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
983 return 0x11;
984#else
985 union
986 {
987 uint32_t i;
988 uint8_t c;
989 } u = { 0x11223344 };
990 return u.c;
991#endif
833} 992}
834 993
835ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
836ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
837ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
839 998
840#if ECB_GCC_VERSION(3,0) || ECB_C99 999#if ECB_GCC_VERSION(3,0) || ECB_C99
841 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
842#else 1001#else
843 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
868 } 1027 }
869#else 1028#else
870 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
871#endif 1030#endif
872 1031
1032/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034
1035/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \
1038 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \
1044 || defined __alpha__ \
1045 || defined __hppa__ \
1046 || defined __ia64__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1048 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */
1050#else
1051 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif
1054
1055#ifndef ECB_NO_LIBM
1056
1057 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1059 ecb_function_ uint32_t
1060 ecb_float_to_binary32 (float x)
1061 {
1062 uint32_t r;
1063
1064 #if ECB_STDFP
1065 memcpy (&r, &x, 4);
1066 #else
1067 /* slow emulation, works for anything but -0 */
1068 uint32_t m;
1069 int e;
1070
1071 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU;
1075
1076 m = frexpf (x, &e) * 0x1000000U;
1077
1078 r = m & 0x80000000U;
1079
1080 if (r)
1081 m = -m;
1082
1083 if (e <= -126)
1084 {
1085 m &= 0xffffffU;
1086 m >>= (-125 - e);
1087 e = -126;
1088 }
1089
1090 r |= (e + 126) << 23;
1091 r |= m & 0x7fffffU;
1092 #endif
1093
1094 return r;
1095 }
1096
1097 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1099 ecb_function_ float
1100 ecb_binary32_to_float (uint32_t x)
1101 {
1102 float r;
1103
1104 #if ECB_STDFP
1105 memcpy (&r, &x, 4);
1106 #else
1107 /* emulation, only works for normals and subnormals and +0 */
1108 int neg = x >> 31;
1109 int e = (x >> 23) & 0xffU;
1110
1111 x &= 0x7fffffU;
1112
1113 if (e)
1114 x |= 0x800000U;
1115 else
1116 e = 1;
1117
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1120
1121 r = neg ? -r : r;
1122 #endif
1123
1124 return r;
1125 }
1126
1127 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1129 ecb_function_ uint64_t
1130 ecb_double_to_binary64 (double x)
1131 {
1132 uint64_t r;
1133
1134 #if ECB_STDFP
1135 memcpy (&r, &x, 8);
1136 #else
1137 /* slow emulation, works for anything but -0 */
1138 uint64_t m;
1139 int e;
1140
1141 if (x == 0e0 ) return 0x0000000000000000U;
1142 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1143 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1144 if (x != x ) return 0X7ff7ffffffffffffU;
1145
1146 m = frexp (x, &e) * 0x20000000000000U;
1147
1148 r = m & 0x8000000000000000;;
1149
1150 if (r)
1151 m = -m;
1152
1153 if (e <= -1022)
1154 {
1155 m &= 0x1fffffffffffffU;
1156 m >>= (-1021 - e);
1157 e = -1022;
1158 }
1159
1160 r |= ((uint64_t)(e + 1022)) << 52;
1161 r |= m & 0xfffffffffffffU;
1162 #endif
1163
1164 return r;
1165 }
1166
1167 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1169 ecb_function_ double
1170 ecb_binary64_to_double (uint64_t x)
1171 {
1172 double r;
1173
1174 #if ECB_STDFP
1175 memcpy (&r, &x, 8);
1176 #else
1177 /* emulation, only works for normals and subnormals and +0 */
1178 int neg = x >> 63;
1179 int e = (x >> 52) & 0x7ffU;
1180
1181 x &= 0xfffffffffffffU;
1182
1183 if (e)
1184 x |= 0x10000000000000U;
1185 else
1186 e = 1;
1187
1188 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1189 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1190
1191 r = neg ? -r : r;
1192 #endif
1193
1194 return r;
1195 }
1196
1197#endif
1198
873#endif 1199#endif
874 1200
875/* ECB.H END */ 1201/* ECB.H END */
876 1202
877#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1043{ 1369{
1044 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
1045} 1371}
1046#endif 1372#endif
1047 1373
1048static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
1049 1375
1050void ecb_cold 1376void ecb_cold
1051ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1052{ 1378{
1053 syserr_cb = cb; 1379 syserr_cb = cb;
1054} 1380}
1055 1381
1056static void noinline ecb_cold 1382static void noinline ecb_cold
… …
1074 abort (); 1400 abort ();
1075 } 1401 }
1076} 1402}
1077 1403
1078static void * 1404static void *
1079ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
1080{ 1406{
1081#if __GLIBC__
1082 return realloc (ptr, size);
1083#else
1084 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
1085 * implement realloc (x, 0) (as required by both ansi c-89 and 1408 * implement realloc (x, 0) (as required by both ansi c-89 and
1086 * the single unix specification, so work around them here. 1409 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it,
1411 * despite documenting it otherwise.
1087 */ 1412 */
1088 1413
1089 if (size) 1414 if (size)
1090 return realloc (ptr, size); 1415 return realloc (ptr, size);
1091 1416
1092 free (ptr); 1417 free (ptr);
1093 return 0; 1418 return 0;
1094#endif
1095} 1419}
1096 1420
1097static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1098 1422
1099void ecb_cold 1423void ecb_cold
1100ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1101{ 1425{
1102 alloc = cb; 1426 alloc = cb;
1103} 1427}
1104 1428
1105inline_speed void * 1429inline_speed void *
… …
1222 1546
1223/*****************************************************************************/ 1547/*****************************************************************************/
1224 1548
1225#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
1226ev_tstamp 1550ev_tstamp
1227ev_time (void) 1551ev_time (void) EV_THROW
1228{ 1552{
1229#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
1230 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
1231 { 1555 {
1232 struct timespec ts; 1556 struct timespec ts;
… …
1256 return ev_time (); 1580 return ev_time ();
1257} 1581}
1258 1582
1259#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
1260ev_tstamp 1584ev_tstamp
1261ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
1262{ 1586{
1263 return ev_rt_now; 1587 return ev_rt_now;
1264} 1588}
1265#endif 1589#endif
1266 1590
1267void 1591void
1268ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
1269{ 1593{
1270 if (delay > 0.) 1594 if (delay > 0.)
1271 { 1595 {
1272#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
1273 struct timespec ts; 1597 struct timespec ts;
1274 1598
1275 EV_TS_SET (ts, delay); 1599 EV_TS_SET (ts, delay);
1276 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
1277#elif defined(_WIN32) 1601#elif defined _WIN32
1278 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
1279#else 1603#else
1280 struct timeval tv; 1604 struct timeval tv;
1281 1605
1282 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1354pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
1355{ 1679{
1356} 1680}
1357 1681
1358void noinline 1682void noinline
1359ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1360{ 1684{
1361 W w_ = (W)w; 1685 W w_ = (W)w;
1362 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
1363 1687
1364 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
1368 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
1369 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1370 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
1371 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
1372 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
1373} 1699}
1374 1700
1375inline_speed void 1701inline_speed void
1376feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
1377{ 1703{
… …
1423 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
1424 fd_event_nocheck (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
1425} 1751}
1426 1752
1427void 1753void
1428ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1429{ 1755{
1430 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
1431 fd_event_nocheck (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
1432} 1758}
1433 1759
… …
1752static void noinline ecb_cold 2078static void noinline ecb_cold
1753evpipe_init (EV_P) 2079evpipe_init (EV_P)
1754{ 2080{
1755 if (!ev_is_active (&pipe_w)) 2081 if (!ev_is_active (&pipe_w))
1756 { 2082 {
2083 int fds [2];
2084
1757# if EV_USE_EVENTFD 2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
1758 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1759 if (evfd < 0 && errno == EINVAL) 2088 if (fds [1] < 0 && errno == EINVAL)
1760 evfd = eventfd (0, 0); 2089 fds [1] = eventfd (0, 0);
1761 2090
1762 if (evfd >= 0) 2091 if (fds [1] < 0)
2092# endif
1763 { 2093 {
2094 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe");
2096
2097 fd_intern (fds [0]);
2098 }
2099
2100 fd_intern (fds [1]);
2101
1764 evpipe [0] = -1; 2102 evpipe [0] = fds [0];
1765 fd_intern (evfd); /* doing it twice doesn't hurt */ 2103
1766 ev_io_set (&pipe_w, evfd, EV_READ); 2104 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */
2106 else
2107 {
2108 /* on subsequent calls, do not change evpipe [1] */
2109 /* so that evpipe_write can always rely on its value. */
2110 /* this branch does not do anything sensible on windows, */
2111 /* so must not be executed on windows */
2112
2113 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]);
2115 }
2116
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 }
2121}
2122
2123inline_speed void
2124evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2125{
2126 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2127
2128 if (expect_true (*flag))
2129 return;
2130
2131 *flag = 1;
2132 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2133
2134 pipe_write_skipped = 1;
2135
2136 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2137
2138 if (pipe_write_wanted)
2139 {
2140 int old_errno;
2141
2142 pipe_write_skipped = 0;
2143 ECB_MEMORY_FENCE_RELEASE;
2144
2145 old_errno = errno; /* save errno because write will clobber it */
2146
2147#if EV_USE_EVENTFD
2148 if (evpipe [0] < 0)
2149 {
2150 uint64_t counter = 1;
2151 write (evpipe [1], &counter, sizeof (uint64_t));
1767 } 2152 }
1768 else 2153 else
1769# endif 2154#endif
1770 { 2155 {
1771 while (pipe (evpipe)) 2156#ifdef _WIN32
1772 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1773 2158 DWORD sent;
1774 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1775 fd_intern (evpipe [1]); 2160 buf.len = 1;
1776 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1777 } 2162#else
1778
1779 ev_io_start (EV_A_ &pipe_w);
1780 ev_unref (EV_A); /* watcher should not keep loop alive */
1781 }
1782}
1783
1784inline_speed void
1785evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1786{
1787 if (expect_true (*flag))
1788 return;
1789
1790 *flag = 1;
1791
1792 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1793
1794 pipe_write_skipped = 1;
1795
1796 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1797
1798 if (pipe_write_wanted)
1799 {
1800 int old_errno;
1801
1802 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1803
1804 old_errno = errno; /* save errno because write will clobber it */
1805
1806#if EV_USE_EVENTFD
1807 if (evfd >= 0)
1808 {
1809 uint64_t counter = 1;
1810 write (evfd, &counter, sizeof (uint64_t));
1811 }
1812 else
1813#endif
1814 {
1815 /* win32 people keep sending patches that change this write() to send() */
1816 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1817 /* so when you think this write should be a send instead, please find out */
1818 /* where your send() is from - it's definitely not the microsoft send, and */
1819 /* tell me. thank you. */
1820 write (evpipe [1], &(evpipe [1]), 1); 2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1821 } 2165 }
1822 2166
1823 errno = old_errno; 2167 errno = old_errno;
1824 } 2168 }
1825} 2169}
… …
1832 int i; 2176 int i;
1833 2177
1834 if (revents & EV_READ) 2178 if (revents & EV_READ)
1835 { 2179 {
1836#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1837 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1838 { 2182 {
1839 uint64_t counter; 2183 uint64_t counter;
1840 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1841 } 2185 }
1842 else 2186 else
1843#endif 2187#endif
1844 { 2188 {
1845 char dummy; 2189 char dummy[4];
1846 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2190#ifdef _WIN32
2191 WSABUF buf;
2192 DWORD recvd;
2193 DWORD flags = 0;
2194 buf.buf = dummy;
2195 buf.len = sizeof (dummy);
2196 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2197#else
1847 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
1848 } 2200 }
1849 } 2201 }
1850 2202
1851 pipe_write_skipped = 0; 2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1852 2206
1853#if EV_SIGNAL_ENABLE 2207#if EV_SIGNAL_ENABLE
1854 if (sig_pending) 2208 if (sig_pending)
1855 { 2209 {
1856 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1857 2213
1858 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1859 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1860 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1861 } 2217 }
… …
1863 2219
1864#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1865 if (async_pending) 2221 if (async_pending)
1866 { 2222 {
1867 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1868 2226
1869 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1870 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1871 { 2229 {
1872 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1873 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1874 } 2233 }
1875 } 2234 }
1876#endif 2235#endif
1877} 2236}
1878 2237
1879/*****************************************************************************/ 2238/*****************************************************************************/
1880 2239
1881void 2240void
1882ev_feed_signal (int signum) 2241ev_feed_signal (int signum) EV_THROW
1883{ 2242{
1884#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
2244 ECB_MEMORY_FENCE_ACQUIRE;
1885 EV_P = signals [signum - 1].loop; 2245 EV_P = signals [signum - 1].loop;
1886 2246
1887 if (!EV_A) 2247 if (!EV_A)
1888 return; 2248 return;
1889#endif 2249#endif
1890 2250
1891 if (!ev_active (&pipe_w))
1892 return;
1893
1894 signals [signum - 1].pending = 1; 2251 signals [signum - 1].pending = 1;
1895 evpipe_write (EV_A_ &sig_pending); 2252 evpipe_write (EV_A_ &sig_pending);
1896} 2253}
1897 2254
1898static void 2255static void
… …
1904 2261
1905 ev_feed_signal (signum); 2262 ev_feed_signal (signum);
1906} 2263}
1907 2264
1908void noinline 2265void noinline
1909ev_feed_signal_event (EV_P_ int signum) 2266ev_feed_signal_event (EV_P_ int signum) EV_THROW
1910{ 2267{
1911 WL w; 2268 WL w;
1912 2269
1913 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2270 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1914 return; 2271 return;
1915 2272
1916 --signum; 2273 --signum;
1917 2274
1918#if EV_MULTIPLICITY 2275#if EV_MULTIPLICITY
… …
1922 if (expect_false (signals [signum].loop != EV_A)) 2279 if (expect_false (signals [signum].loop != EV_A))
1923 return; 2280 return;
1924#endif 2281#endif
1925 2282
1926 signals [signum].pending = 0; 2283 signals [signum].pending = 0;
2284 ECB_MEMORY_FENCE_RELEASE;
1927 2285
1928 for (w = signals [signum].head; w; w = w->next) 2286 for (w = signals [signum].head; w; w = w->next)
1929 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2287 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1930} 2288}
1931 2289
… …
2030#if EV_USE_SELECT 2388#if EV_USE_SELECT
2031# include "ev_select.c" 2389# include "ev_select.c"
2032#endif 2390#endif
2033 2391
2034int ecb_cold 2392int ecb_cold
2035ev_version_major (void) 2393ev_version_major (void) EV_THROW
2036{ 2394{
2037 return EV_VERSION_MAJOR; 2395 return EV_VERSION_MAJOR;
2038} 2396}
2039 2397
2040int ecb_cold 2398int ecb_cold
2041ev_version_minor (void) 2399ev_version_minor (void) EV_THROW
2042{ 2400{
2043 return EV_VERSION_MINOR; 2401 return EV_VERSION_MINOR;
2044} 2402}
2045 2403
2046/* return true if we are running with elevated privileges and should ignore env variables */ 2404/* return true if we are running with elevated privileges and should ignore env variables */
… …
2054 || getgid () != getegid (); 2412 || getgid () != getegid ();
2055#endif 2413#endif
2056} 2414}
2057 2415
2058unsigned int ecb_cold 2416unsigned int ecb_cold
2059ev_supported_backends (void) 2417ev_supported_backends (void) EV_THROW
2060{ 2418{
2061 unsigned int flags = 0; 2419 unsigned int flags = 0;
2062 2420
2063 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2064 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2068 2426
2069 return flags; 2427 return flags;
2070} 2428}
2071 2429
2072unsigned int ecb_cold 2430unsigned int ecb_cold
2073ev_recommended_backends (void) 2431ev_recommended_backends (void) EV_THROW
2074{ 2432{
2075 unsigned int flags = ev_supported_backends (); 2433 unsigned int flags = ev_supported_backends ();
2076 2434
2077#ifndef __NetBSD__ 2435#ifndef __NetBSD__
2078 /* kqueue is borked on everything but netbsd apparently */ 2436 /* kqueue is borked on everything but netbsd apparently */
… …
2090 2448
2091 return flags; 2449 return flags;
2092} 2450}
2093 2451
2094unsigned int ecb_cold 2452unsigned int ecb_cold
2095ev_embeddable_backends (void) 2453ev_embeddable_backends (void) EV_THROW
2096{ 2454{
2097 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2455 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2098 2456
2099 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2457 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2100 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2458 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2102 2460
2103 return flags; 2461 return flags;
2104} 2462}
2105 2463
2106unsigned int 2464unsigned int
2107ev_backend (EV_P) 2465ev_backend (EV_P) EV_THROW
2108{ 2466{
2109 return backend; 2467 return backend;
2110} 2468}
2111 2469
2112#if EV_FEATURE_API 2470#if EV_FEATURE_API
2113unsigned int 2471unsigned int
2114ev_iteration (EV_P) 2472ev_iteration (EV_P) EV_THROW
2115{ 2473{
2116 return loop_count; 2474 return loop_count;
2117} 2475}
2118 2476
2119unsigned int 2477unsigned int
2120ev_depth (EV_P) 2478ev_depth (EV_P) EV_THROW
2121{ 2479{
2122 return loop_depth; 2480 return loop_depth;
2123} 2481}
2124 2482
2125void 2483void
2126ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2484ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2127{ 2485{
2128 io_blocktime = interval; 2486 io_blocktime = interval;
2129} 2487}
2130 2488
2131void 2489void
2132ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2490ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2133{ 2491{
2134 timeout_blocktime = interval; 2492 timeout_blocktime = interval;
2135} 2493}
2136 2494
2137void 2495void
2138ev_set_userdata (EV_P_ void *data) 2496ev_set_userdata (EV_P_ void *data) EV_THROW
2139{ 2497{
2140 userdata = data; 2498 userdata = data;
2141} 2499}
2142 2500
2143void * 2501void *
2144ev_userdata (EV_P) 2502ev_userdata (EV_P) EV_THROW
2145{ 2503{
2146 return userdata; 2504 return userdata;
2147} 2505}
2148 2506
2149void 2507void
2150ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2508ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2151{ 2509{
2152 invoke_cb = invoke_pending_cb; 2510 invoke_cb = invoke_pending_cb;
2153} 2511}
2154 2512
2155void 2513void
2156ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2514ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2157{ 2515{
2158 release_cb = release; 2516 release_cb = release;
2159 acquire_cb = acquire; 2517 acquire_cb = acquire;
2160} 2518}
2161#endif 2519#endif
2162 2520
2163/* initialise a loop structure, must be zero-initialised */ 2521/* initialise a loop structure, must be zero-initialised */
2164static void noinline ecb_cold 2522static void noinline ecb_cold
2165loop_init (EV_P_ unsigned int flags) 2523loop_init (EV_P_ unsigned int flags) EV_THROW
2166{ 2524{
2167 if (!backend) 2525 if (!backend)
2168 { 2526 {
2169 origflags = flags; 2527 origflags = flags;
2170 2528
… …
2215#if EV_ASYNC_ENABLE 2573#if EV_ASYNC_ENABLE
2216 async_pending = 0; 2574 async_pending = 0;
2217#endif 2575#endif
2218 pipe_write_skipped = 0; 2576 pipe_write_skipped = 0;
2219 pipe_write_wanted = 0; 2577 pipe_write_wanted = 0;
2578 evpipe [0] = -1;
2579 evpipe [1] = -1;
2220#if EV_USE_INOTIFY 2580#if EV_USE_INOTIFY
2221 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2581 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2222#endif 2582#endif
2223#if EV_USE_SIGNALFD 2583#if EV_USE_SIGNALFD
2224 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2584 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2275 EV_INVOKE_PENDING; 2635 EV_INVOKE_PENDING;
2276 } 2636 }
2277#endif 2637#endif
2278 2638
2279#if EV_CHILD_ENABLE 2639#if EV_CHILD_ENABLE
2280 if (ev_is_active (&childev)) 2640 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2281 { 2641 {
2282 ev_ref (EV_A); /* child watcher */ 2642 ev_ref (EV_A); /* child watcher */
2283 ev_signal_stop (EV_A_ &childev); 2643 ev_signal_stop (EV_A_ &childev);
2284 } 2644 }
2285#endif 2645#endif
… …
2287 if (ev_is_active (&pipe_w)) 2647 if (ev_is_active (&pipe_w))
2288 { 2648 {
2289 /*ev_ref (EV_A);*/ 2649 /*ev_ref (EV_A);*/
2290 /*ev_io_stop (EV_A_ &pipe_w);*/ 2650 /*ev_io_stop (EV_A_ &pipe_w);*/
2291 2651
2292#if EV_USE_EVENTFD
2293 if (evfd >= 0)
2294 close (evfd);
2295#endif
2296
2297 if (evpipe [0] >= 0)
2298 {
2299 EV_WIN32_CLOSE_FD (evpipe [0]); 2652 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2300 EV_WIN32_CLOSE_FD (evpipe [1]); 2653 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2301 }
2302 } 2654 }
2303 2655
2304#if EV_USE_SIGNALFD 2656#if EV_USE_SIGNALFD
2305 if (ev_is_active (&sigfd_w)) 2657 if (ev_is_active (&sigfd_w))
2306 close (sigfd); 2658 close (sigfd);
… …
2392#endif 2744#endif
2393#if EV_USE_INOTIFY 2745#if EV_USE_INOTIFY
2394 infy_fork (EV_A); 2746 infy_fork (EV_A);
2395#endif 2747#endif
2396 2748
2749#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2397 if (ev_is_active (&pipe_w)) 2750 if (ev_is_active (&pipe_w))
2398 { 2751 {
2399 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2752 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2400 2753
2401 ev_ref (EV_A); 2754 ev_ref (EV_A);
2402 ev_io_stop (EV_A_ &pipe_w); 2755 ev_io_stop (EV_A_ &pipe_w);
2403 2756
2404#if EV_USE_EVENTFD
2405 if (evfd >= 0)
2406 close (evfd);
2407#endif
2408
2409 if (evpipe [0] >= 0) 2757 if (evpipe [0] >= 0)
2410 {
2411 EV_WIN32_CLOSE_FD (evpipe [0]); 2758 EV_WIN32_CLOSE_FD (evpipe [0]);
2412 EV_WIN32_CLOSE_FD (evpipe [1]);
2413 }
2414 2759
2415#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2416 evpipe_init (EV_A); 2760 evpipe_init (EV_A);
2417 /* now iterate over everything, in case we missed something */ 2761 /* iterate over everything, in case we missed something before */
2418 pipecb (EV_A_ &pipe_w, EV_READ); 2762 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2419#endif
2420 } 2763 }
2764#endif
2421 2765
2422 postfork = 0; 2766 postfork = 0;
2423} 2767}
2424 2768
2425#if EV_MULTIPLICITY 2769#if EV_MULTIPLICITY
2426 2770
2427struct ev_loop * ecb_cold 2771struct ev_loop * ecb_cold
2428ev_loop_new (unsigned int flags) 2772ev_loop_new (unsigned int flags) EV_THROW
2429{ 2773{
2430 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2774 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2431 2775
2432 memset (EV_A, 0, sizeof (struct ev_loop)); 2776 memset (EV_A, 0, sizeof (struct ev_loop));
2433 loop_init (EV_A_ flags); 2777 loop_init (EV_A_ flags);
… …
2477} 2821}
2478#endif 2822#endif
2479 2823
2480#if EV_FEATURE_API 2824#if EV_FEATURE_API
2481void ecb_cold 2825void ecb_cold
2482ev_verify (EV_P) 2826ev_verify (EV_P) EV_THROW
2483{ 2827{
2484#if EV_VERIFY 2828#if EV_VERIFY
2485 int i; 2829 int i;
2486 WL w; 2830 WL w, w2;
2487 2831
2488 assert (activecnt >= -1); 2832 assert (activecnt >= -1);
2489 2833
2490 assert (fdchangemax >= fdchangecnt); 2834 assert (fdchangemax >= fdchangecnt);
2491 for (i = 0; i < fdchangecnt; ++i) 2835 for (i = 0; i < fdchangecnt; ++i)
2492 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2836 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2493 2837
2494 assert (anfdmax >= 0); 2838 assert (anfdmax >= 0);
2495 for (i = 0; i < anfdmax; ++i) 2839 for (i = 0; i < anfdmax; ++i)
2840 {
2841 int j = 0;
2842
2496 for (w = anfds [i].head; w; w = w->next) 2843 for (w = w2 = anfds [i].head; w; w = w->next)
2497 { 2844 {
2498 verify_watcher (EV_A_ (W)w); 2845 verify_watcher (EV_A_ (W)w);
2846
2847 if (j++ & 1)
2848 {
2849 assert (("libev: io watcher list contains a loop", w != w2));
2850 w2 = w2->next;
2851 }
2852
2499 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2853 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2500 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2854 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2501 } 2855 }
2856 }
2502 2857
2503 assert (timermax >= timercnt); 2858 assert (timermax >= timercnt);
2504 verify_heap (EV_A_ timers, timercnt); 2859 verify_heap (EV_A_ timers, timercnt);
2505 2860
2506#if EV_PERIODIC_ENABLE 2861#if EV_PERIODIC_ENABLE
… …
2556#if EV_MULTIPLICITY 2911#if EV_MULTIPLICITY
2557struct ev_loop * ecb_cold 2912struct ev_loop * ecb_cold
2558#else 2913#else
2559int 2914int
2560#endif 2915#endif
2561ev_default_loop (unsigned int flags) 2916ev_default_loop (unsigned int flags) EV_THROW
2562{ 2917{
2563 if (!ev_default_loop_ptr) 2918 if (!ev_default_loop_ptr)
2564 { 2919 {
2565#if EV_MULTIPLICITY 2920#if EV_MULTIPLICITY
2566 EV_P = ev_default_loop_ptr = &default_loop_struct; 2921 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2585 2940
2586 return ev_default_loop_ptr; 2941 return ev_default_loop_ptr;
2587} 2942}
2588 2943
2589void 2944void
2590ev_loop_fork (EV_P) 2945ev_loop_fork (EV_P) EV_THROW
2591{ 2946{
2592 postfork = 1; /* must be in line with ev_default_fork */ 2947 postfork = 1;
2593} 2948}
2594 2949
2595/*****************************************************************************/ 2950/*****************************************************************************/
2596 2951
2597void 2952void
… …
2599{ 2954{
2600 EV_CB_INVOKE ((W)w, revents); 2955 EV_CB_INVOKE ((W)w, revents);
2601} 2956}
2602 2957
2603unsigned int 2958unsigned int
2604ev_pending_count (EV_P) 2959ev_pending_count (EV_P) EV_THROW
2605{ 2960{
2606 int pri; 2961 int pri;
2607 unsigned int count = 0; 2962 unsigned int count = 0;
2608 2963
2609 for (pri = NUMPRI; pri--; ) 2964 for (pri = NUMPRI; pri--; )
… …
2613} 2968}
2614 2969
2615void noinline 2970void noinline
2616ev_invoke_pending (EV_P) 2971ev_invoke_pending (EV_P)
2617{ 2972{
2618 int pri; 2973 pendingpri = NUMPRI;
2619 2974
2620 for (pri = NUMPRI; pri--; ) 2975 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2976 {
2977 --pendingpri;
2978
2621 while (pendingcnt [pri]) 2979 while (pendingcnt [pendingpri])
2622 { 2980 {
2623 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2981 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2624 2982
2625 p->w->pending = 0; 2983 p->w->pending = 0;
2626 EV_CB_INVOKE (p->w, p->events); 2984 EV_CB_INVOKE (p->w, p->events);
2627 EV_FREQUENT_CHECK; 2985 EV_FREQUENT_CHECK;
2628 } 2986 }
2987 }
2629} 2988}
2630 2989
2631#if EV_IDLE_ENABLE 2990#if EV_IDLE_ENABLE
2632/* make idle watchers pending. this handles the "call-idle */ 2991/* make idle watchers pending. this handles the "call-idle */
2633/* only when higher priorities are idle" logic */ 2992/* only when higher priorities are idle" logic */
… …
2723{ 3082{
2724 EV_FREQUENT_CHECK; 3083 EV_FREQUENT_CHECK;
2725 3084
2726 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3085 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2727 { 3086 {
2728 int feed_count = 0;
2729
2730 do 3087 do
2731 { 3088 {
2732 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3089 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2733 3090
2734 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3091 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2868 3225
2869 mn_now = ev_rt_now; 3226 mn_now = ev_rt_now;
2870 } 3227 }
2871} 3228}
2872 3229
2873void 3230int
2874ev_run (EV_P_ int flags) 3231ev_run (EV_P_ int flags)
2875{ 3232{
2876#if EV_FEATURE_API 3233#if EV_FEATURE_API
2877 ++loop_depth; 3234 ++loop_depth;
2878#endif 3235#endif
… …
2993 backend_poll (EV_A_ waittime); 3350 backend_poll (EV_A_ waittime);
2994 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3351 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2995 3352
2996 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3353 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2997 3354
3355 ECB_MEMORY_FENCE_ACQUIRE;
2998 if (pipe_write_skipped) 3356 if (pipe_write_skipped)
2999 { 3357 {
3000 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3358 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3001 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3359 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3002 } 3360 }
… …
3035 loop_done = EVBREAK_CANCEL; 3393 loop_done = EVBREAK_CANCEL;
3036 3394
3037#if EV_FEATURE_API 3395#if EV_FEATURE_API
3038 --loop_depth; 3396 --loop_depth;
3039#endif 3397#endif
3398
3399 return activecnt;
3040} 3400}
3041 3401
3042void 3402void
3043ev_break (EV_P_ int how) 3403ev_break (EV_P_ int how) EV_THROW
3044{ 3404{
3045 loop_done = how; 3405 loop_done = how;
3046} 3406}
3047 3407
3048void 3408void
3049ev_ref (EV_P) 3409ev_ref (EV_P) EV_THROW
3050{ 3410{
3051 ++activecnt; 3411 ++activecnt;
3052} 3412}
3053 3413
3054void 3414void
3055ev_unref (EV_P) 3415ev_unref (EV_P) EV_THROW
3056{ 3416{
3057 --activecnt; 3417 --activecnt;
3058} 3418}
3059 3419
3060void 3420void
3061ev_now_update (EV_P) 3421ev_now_update (EV_P) EV_THROW
3062{ 3422{
3063 time_update (EV_A_ 1e100); 3423 time_update (EV_A_ 1e100);
3064} 3424}
3065 3425
3066void 3426void
3067ev_suspend (EV_P) 3427ev_suspend (EV_P) EV_THROW
3068{ 3428{
3069 ev_now_update (EV_A); 3429 ev_now_update (EV_A);
3070} 3430}
3071 3431
3072void 3432void
3073ev_resume (EV_P) 3433ev_resume (EV_P) EV_THROW
3074{ 3434{
3075 ev_tstamp mn_prev = mn_now; 3435 ev_tstamp mn_prev = mn_now;
3076 3436
3077 ev_now_update (EV_A); 3437 ev_now_update (EV_A);
3078 timers_reschedule (EV_A_ mn_now - mn_prev); 3438 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3117 w->pending = 0; 3477 w->pending = 0;
3118 } 3478 }
3119} 3479}
3120 3480
3121int 3481int
3122ev_clear_pending (EV_P_ void *w) 3482ev_clear_pending (EV_P_ void *w) EV_THROW
3123{ 3483{
3124 W w_ = (W)w; 3484 W w_ = (W)w;
3125 int pending = w_->pending; 3485 int pending = w_->pending;
3126 3486
3127 if (expect_true (pending)) 3487 if (expect_true (pending))
… …
3160} 3520}
3161 3521
3162/*****************************************************************************/ 3522/*****************************************************************************/
3163 3523
3164void noinline 3524void noinline
3165ev_io_start (EV_P_ ev_io *w) 3525ev_io_start (EV_P_ ev_io *w) EV_THROW
3166{ 3526{
3167 int fd = w->fd; 3527 int fd = w->fd;
3168 3528
3169 if (expect_false (ev_is_active (w))) 3529 if (expect_false (ev_is_active (w)))
3170 return; 3530 return;
… …
3176 3536
3177 ev_start (EV_A_ (W)w, 1); 3537 ev_start (EV_A_ (W)w, 1);
3178 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3538 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3179 wlist_add (&anfds[fd].head, (WL)w); 3539 wlist_add (&anfds[fd].head, (WL)w);
3180 3540
3541 /* common bug, apparently */
3542 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3543
3181 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3544 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3182 w->events &= ~EV__IOFDSET; 3545 w->events &= ~EV__IOFDSET;
3183 3546
3184 EV_FREQUENT_CHECK; 3547 EV_FREQUENT_CHECK;
3185} 3548}
3186 3549
3187void noinline 3550void noinline
3188ev_io_stop (EV_P_ ev_io *w) 3551ev_io_stop (EV_P_ ev_io *w) EV_THROW
3189{ 3552{
3190 clear_pending (EV_A_ (W)w); 3553 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 3554 if (expect_false (!ev_is_active (w)))
3192 return; 3555 return;
3193 3556
… …
3202 3565
3203 EV_FREQUENT_CHECK; 3566 EV_FREQUENT_CHECK;
3204} 3567}
3205 3568
3206void noinline 3569void noinline
3207ev_timer_start (EV_P_ ev_timer *w) 3570ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3208{ 3571{
3209 if (expect_false (ev_is_active (w))) 3572 if (expect_false (ev_is_active (w)))
3210 return; 3573 return;
3211 3574
3212 ev_at (w) += mn_now; 3575 ev_at (w) += mn_now;
… …
3226 3589
3227 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3590 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3228} 3591}
3229 3592
3230void noinline 3593void noinline
3231ev_timer_stop (EV_P_ ev_timer *w) 3594ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3232{ 3595{
3233 clear_pending (EV_A_ (W)w); 3596 clear_pending (EV_A_ (W)w);
3234 if (expect_false (!ev_is_active (w))) 3597 if (expect_false (!ev_is_active (w)))
3235 return; 3598 return;
3236 3599
… …
3256 3619
3257 EV_FREQUENT_CHECK; 3620 EV_FREQUENT_CHECK;
3258} 3621}
3259 3622
3260void noinline 3623void noinline
3261ev_timer_again (EV_P_ ev_timer *w) 3624ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3262{ 3625{
3263 EV_FREQUENT_CHECK; 3626 EV_FREQUENT_CHECK;
3627
3628 clear_pending (EV_A_ (W)w);
3264 3629
3265 if (ev_is_active (w)) 3630 if (ev_is_active (w))
3266 { 3631 {
3267 if (w->repeat) 3632 if (w->repeat)
3268 { 3633 {
… …
3281 3646
3282 EV_FREQUENT_CHECK; 3647 EV_FREQUENT_CHECK;
3283} 3648}
3284 3649
3285ev_tstamp 3650ev_tstamp
3286ev_timer_remaining (EV_P_ ev_timer *w) 3651ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3287{ 3652{
3288 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3653 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3289} 3654}
3290 3655
3291#if EV_PERIODIC_ENABLE 3656#if EV_PERIODIC_ENABLE
3292void noinline 3657void noinline
3293ev_periodic_start (EV_P_ ev_periodic *w) 3658ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3294{ 3659{
3295 if (expect_false (ev_is_active (w))) 3660 if (expect_false (ev_is_active (w)))
3296 return; 3661 return;
3297 3662
3298 if (w->reschedule_cb) 3663 if (w->reschedule_cb)
… …
3318 3683
3319 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3684 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3320} 3685}
3321 3686
3322void noinline 3687void noinline
3323ev_periodic_stop (EV_P_ ev_periodic *w) 3688ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3324{ 3689{
3325 clear_pending (EV_A_ (W)w); 3690 clear_pending (EV_A_ (W)w);
3326 if (expect_false (!ev_is_active (w))) 3691 if (expect_false (!ev_is_active (w)))
3327 return; 3692 return;
3328 3693
… …
3346 3711
3347 EV_FREQUENT_CHECK; 3712 EV_FREQUENT_CHECK;
3348} 3713}
3349 3714
3350void noinline 3715void noinline
3351ev_periodic_again (EV_P_ ev_periodic *w) 3716ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3352{ 3717{
3353 /* TODO: use adjustheap and recalculation */ 3718 /* TODO: use adjustheap and recalculation */
3354 ev_periodic_stop (EV_A_ w); 3719 ev_periodic_stop (EV_A_ w);
3355 ev_periodic_start (EV_A_ w); 3720 ev_periodic_start (EV_A_ w);
3356} 3721}
… …
3361#endif 3726#endif
3362 3727
3363#if EV_SIGNAL_ENABLE 3728#if EV_SIGNAL_ENABLE
3364 3729
3365void noinline 3730void noinline
3366ev_signal_start (EV_P_ ev_signal *w) 3731ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3367{ 3732{
3368 if (expect_false (ev_is_active (w))) 3733 if (expect_false (ev_is_active (w)))
3369 return; 3734 return;
3370 3735
3371 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3373#if EV_MULTIPLICITY 3738#if EV_MULTIPLICITY
3374 assert (("libev: a signal must not be attached to two different loops", 3739 assert (("libev: a signal must not be attached to two different loops",
3375 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3740 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3376 3741
3377 signals [w->signum - 1].loop = EV_A; 3742 signals [w->signum - 1].loop = EV_A;
3743 ECB_MEMORY_FENCE_RELEASE;
3378#endif 3744#endif
3379 3745
3380 EV_FREQUENT_CHECK; 3746 EV_FREQUENT_CHECK;
3381 3747
3382#if EV_USE_SIGNALFD 3748#if EV_USE_SIGNALFD
… …
3442 3808
3443 EV_FREQUENT_CHECK; 3809 EV_FREQUENT_CHECK;
3444} 3810}
3445 3811
3446void noinline 3812void noinline
3447ev_signal_stop (EV_P_ ev_signal *w) 3813ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3448{ 3814{
3449 clear_pending (EV_A_ (W)w); 3815 clear_pending (EV_A_ (W)w);
3450 if (expect_false (!ev_is_active (w))) 3816 if (expect_false (!ev_is_active (w)))
3451 return; 3817 return;
3452 3818
… …
3483#endif 3849#endif
3484 3850
3485#if EV_CHILD_ENABLE 3851#if EV_CHILD_ENABLE
3486 3852
3487void 3853void
3488ev_child_start (EV_P_ ev_child *w) 3854ev_child_start (EV_P_ ev_child *w) EV_THROW
3489{ 3855{
3490#if EV_MULTIPLICITY 3856#if EV_MULTIPLICITY
3491 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3857 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3492#endif 3858#endif
3493 if (expect_false (ev_is_active (w))) 3859 if (expect_false (ev_is_active (w)))
… …
3500 3866
3501 EV_FREQUENT_CHECK; 3867 EV_FREQUENT_CHECK;
3502} 3868}
3503 3869
3504void 3870void
3505ev_child_stop (EV_P_ ev_child *w) 3871ev_child_stop (EV_P_ ev_child *w) EV_THROW
3506{ 3872{
3507 clear_pending (EV_A_ (W)w); 3873 clear_pending (EV_A_ (W)w);
3508 if (expect_false (!ev_is_active (w))) 3874 if (expect_false (!ev_is_active (w)))
3509 return; 3875 return;
3510 3876
… …
3537# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3903# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3538 3904
3539static void noinline 3905static void noinline
3540infy_add (EV_P_ ev_stat *w) 3906infy_add (EV_P_ ev_stat *w)
3541{ 3907{
3542 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3908 w->wd = inotify_add_watch (fs_fd, w->path,
3909 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3911 | IN_DONT_FOLLOW | IN_MASK_ADD);
3543 3912
3544 if (w->wd >= 0) 3913 if (w->wd >= 0)
3545 { 3914 {
3546 struct statfs sfs; 3915 struct statfs sfs;
3547 3916
… …
3551 3920
3552 if (!fs_2625) 3921 if (!fs_2625)
3553 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3922 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3554 else if (!statfs (w->path, &sfs) 3923 else if (!statfs (w->path, &sfs)
3555 && (sfs.f_type == 0x1373 /* devfs */ 3924 && (sfs.f_type == 0x1373 /* devfs */
3925 || sfs.f_type == 0x4006 /* fat */
3926 || sfs.f_type == 0x4d44 /* msdos */
3556 || sfs.f_type == 0xEF53 /* ext2/3 */ 3927 || sfs.f_type == 0xEF53 /* ext2/3 */
3928 || sfs.f_type == 0x72b6 /* jffs2 */
3929 || sfs.f_type == 0x858458f6 /* ramfs */
3930 || sfs.f_type == 0x5346544e /* ntfs */
3557 || sfs.f_type == 0x3153464a /* jfs */ 3931 || sfs.f_type == 0x3153464a /* jfs */
3932 || sfs.f_type == 0x9123683e /* btrfs */
3558 || sfs.f_type == 0x52654973 /* reiser3 */ 3933 || sfs.f_type == 0x52654973 /* reiser3 */
3559 || sfs.f_type == 0x01021994 /* tempfs */ 3934 || sfs.f_type == 0x01021994 /* tmpfs */
3560 || sfs.f_type == 0x58465342 /* xfs */)) 3935 || sfs.f_type == 0x58465342 /* xfs */))
3561 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3936 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3562 else 3937 else
3563 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3938 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3564 } 3939 }
… …
3677} 4052}
3678 4053
3679inline_size int 4054inline_size int
3680infy_newfd (void) 4055infy_newfd (void)
3681{ 4056{
3682#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4057#if defined IN_CLOEXEC && defined IN_NONBLOCK
3683 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4058 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3684 if (fd >= 0) 4059 if (fd >= 0)
3685 return fd; 4060 return fd;
3686#endif 4061#endif
3687 return inotify_init (); 4062 return inotify_init ();
… …
3762#else 4137#else
3763# define EV_LSTAT(p,b) lstat (p, b) 4138# define EV_LSTAT(p,b) lstat (p, b)
3764#endif 4139#endif
3765 4140
3766void 4141void
3767ev_stat_stat (EV_P_ ev_stat *w) 4142ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3768{ 4143{
3769 if (lstat (w->path, &w->attr) < 0) 4144 if (lstat (w->path, &w->attr) < 0)
3770 w->attr.st_nlink = 0; 4145 w->attr.st_nlink = 0;
3771 else if (!w->attr.st_nlink) 4146 else if (!w->attr.st_nlink)
3772 w->attr.st_nlink = 1; 4147 w->attr.st_nlink = 1;
… …
3811 ev_feed_event (EV_A_ w, EV_STAT); 4186 ev_feed_event (EV_A_ w, EV_STAT);
3812 } 4187 }
3813} 4188}
3814 4189
3815void 4190void
3816ev_stat_start (EV_P_ ev_stat *w) 4191ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3817{ 4192{
3818 if (expect_false (ev_is_active (w))) 4193 if (expect_false (ev_is_active (w)))
3819 return; 4194 return;
3820 4195
3821 ev_stat_stat (EV_A_ w); 4196 ev_stat_stat (EV_A_ w);
… …
3842 4217
3843 EV_FREQUENT_CHECK; 4218 EV_FREQUENT_CHECK;
3844} 4219}
3845 4220
3846void 4221void
3847ev_stat_stop (EV_P_ ev_stat *w) 4222ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3848{ 4223{
3849 clear_pending (EV_A_ (W)w); 4224 clear_pending (EV_A_ (W)w);
3850 if (expect_false (!ev_is_active (w))) 4225 if (expect_false (!ev_is_active (w)))
3851 return; 4226 return;
3852 4227
… …
3868} 4243}
3869#endif 4244#endif
3870 4245
3871#if EV_IDLE_ENABLE 4246#if EV_IDLE_ENABLE
3872void 4247void
3873ev_idle_start (EV_P_ ev_idle *w) 4248ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3874{ 4249{
3875 if (expect_false (ev_is_active (w))) 4250 if (expect_false (ev_is_active (w)))
3876 return; 4251 return;
3877 4252
3878 pri_adjust (EV_A_ (W)w); 4253 pri_adjust (EV_A_ (W)w);
… …
3891 4266
3892 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3893} 4268}
3894 4269
3895void 4270void
3896ev_idle_stop (EV_P_ ev_idle *w) 4271ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3897{ 4272{
3898 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3899 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3900 return; 4275 return;
3901 4276
… …
3915} 4290}
3916#endif 4291#endif
3917 4292
3918#if EV_PREPARE_ENABLE 4293#if EV_PREPARE_ENABLE
3919void 4294void
3920ev_prepare_start (EV_P_ ev_prepare *w) 4295ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3921{ 4296{
3922 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3923 return; 4298 return;
3924 4299
3925 EV_FREQUENT_CHECK; 4300 EV_FREQUENT_CHECK;
… …
3930 4305
3931 EV_FREQUENT_CHECK; 4306 EV_FREQUENT_CHECK;
3932} 4307}
3933 4308
3934void 4309void
3935ev_prepare_stop (EV_P_ ev_prepare *w) 4310ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3936{ 4311{
3937 clear_pending (EV_A_ (W)w); 4312 clear_pending (EV_A_ (W)w);
3938 if (expect_false (!ev_is_active (w))) 4313 if (expect_false (!ev_is_active (w)))
3939 return; 4314 return;
3940 4315
… …
3953} 4328}
3954#endif 4329#endif
3955 4330
3956#if EV_CHECK_ENABLE 4331#if EV_CHECK_ENABLE
3957void 4332void
3958ev_check_start (EV_P_ ev_check *w) 4333ev_check_start (EV_P_ ev_check *w) EV_THROW
3959{ 4334{
3960 if (expect_false (ev_is_active (w))) 4335 if (expect_false (ev_is_active (w)))
3961 return; 4336 return;
3962 4337
3963 EV_FREQUENT_CHECK; 4338 EV_FREQUENT_CHECK;
… …
3968 4343
3969 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3970} 4345}
3971 4346
3972void 4347void
3973ev_check_stop (EV_P_ ev_check *w) 4348ev_check_stop (EV_P_ ev_check *w) EV_THROW
3974{ 4349{
3975 clear_pending (EV_A_ (W)w); 4350 clear_pending (EV_A_ (W)w);
3976 if (expect_false (!ev_is_active (w))) 4351 if (expect_false (!ev_is_active (w)))
3977 return; 4352 return;
3978 4353
… …
3991} 4366}
3992#endif 4367#endif
3993 4368
3994#if EV_EMBED_ENABLE 4369#if EV_EMBED_ENABLE
3995void noinline 4370void noinline
3996ev_embed_sweep (EV_P_ ev_embed *w) 4371ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3997{ 4372{
3998 ev_run (w->other, EVRUN_NOWAIT); 4373 ev_run (w->other, EVRUN_NOWAIT);
3999} 4374}
4000 4375
4001static void 4376static void
… …
4049 ev_idle_stop (EV_A_ idle); 4424 ev_idle_stop (EV_A_ idle);
4050} 4425}
4051#endif 4426#endif
4052 4427
4053void 4428void
4054ev_embed_start (EV_P_ ev_embed *w) 4429ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4055{ 4430{
4056 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
4057 return; 4432 return;
4058 4433
4059 { 4434 {
… …
4080 4455
4081 EV_FREQUENT_CHECK; 4456 EV_FREQUENT_CHECK;
4082} 4457}
4083 4458
4084void 4459void
4085ev_embed_stop (EV_P_ ev_embed *w) 4460ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4086{ 4461{
4087 clear_pending (EV_A_ (W)w); 4462 clear_pending (EV_A_ (W)w);
4088 if (expect_false (!ev_is_active (w))) 4463 if (expect_false (!ev_is_active (w)))
4089 return; 4464 return;
4090 4465
… …
4100} 4475}
4101#endif 4476#endif
4102 4477
4103#if EV_FORK_ENABLE 4478#if EV_FORK_ENABLE
4104void 4479void
4105ev_fork_start (EV_P_ ev_fork *w) 4480ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4106{ 4481{
4107 if (expect_false (ev_is_active (w))) 4482 if (expect_false (ev_is_active (w)))
4108 return; 4483 return;
4109 4484
4110 EV_FREQUENT_CHECK; 4485 EV_FREQUENT_CHECK;
… …
4115 4490
4116 EV_FREQUENT_CHECK; 4491 EV_FREQUENT_CHECK;
4117} 4492}
4118 4493
4119void 4494void
4120ev_fork_stop (EV_P_ ev_fork *w) 4495ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4121{ 4496{
4122 clear_pending (EV_A_ (W)w); 4497 clear_pending (EV_A_ (W)w);
4123 if (expect_false (!ev_is_active (w))) 4498 if (expect_false (!ev_is_active (w)))
4124 return; 4499 return;
4125 4500
… …
4138} 4513}
4139#endif 4514#endif
4140 4515
4141#if EV_CLEANUP_ENABLE 4516#if EV_CLEANUP_ENABLE
4142void 4517void
4143ev_cleanup_start (EV_P_ ev_cleanup *w) 4518ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4144{ 4519{
4145 if (expect_false (ev_is_active (w))) 4520 if (expect_false (ev_is_active (w)))
4146 return; 4521 return;
4147 4522
4148 EV_FREQUENT_CHECK; 4523 EV_FREQUENT_CHECK;
… …
4155 ev_unref (EV_A); 4530 ev_unref (EV_A);
4156 EV_FREQUENT_CHECK; 4531 EV_FREQUENT_CHECK;
4157} 4532}
4158 4533
4159void 4534void
4160ev_cleanup_stop (EV_P_ ev_cleanup *w) 4535ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4161{ 4536{
4162 clear_pending (EV_A_ (W)w); 4537 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w))) 4538 if (expect_false (!ev_is_active (w)))
4164 return; 4539 return;
4165 4540
… …
4179} 4554}
4180#endif 4555#endif
4181 4556
4182#if EV_ASYNC_ENABLE 4557#if EV_ASYNC_ENABLE
4183void 4558void
4184ev_async_start (EV_P_ ev_async *w) 4559ev_async_start (EV_P_ ev_async *w) EV_THROW
4185{ 4560{
4186 if (expect_false (ev_is_active (w))) 4561 if (expect_false (ev_is_active (w)))
4187 return; 4562 return;
4188 4563
4189 w->sent = 0; 4564 w->sent = 0;
… …
4198 4573
4199 EV_FREQUENT_CHECK; 4574 EV_FREQUENT_CHECK;
4200} 4575}
4201 4576
4202void 4577void
4203ev_async_stop (EV_P_ ev_async *w) 4578ev_async_stop (EV_P_ ev_async *w) EV_THROW
4204{ 4579{
4205 clear_pending (EV_A_ (W)w); 4580 clear_pending (EV_A_ (W)w);
4206 if (expect_false (!ev_is_active (w))) 4581 if (expect_false (!ev_is_active (w)))
4207 return; 4582 return;
4208 4583
… …
4219 4594
4220 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
4221} 4596}
4222 4597
4223void 4598void
4224ev_async_send (EV_P_ ev_async *w) 4599ev_async_send (EV_P_ ev_async *w) EV_THROW
4225{ 4600{
4226 w->sent = 1; 4601 w->sent = 1;
4227 evpipe_write (EV_A_ &async_pending); 4602 evpipe_write (EV_A_ &async_pending);
4228} 4603}
4229#endif 4604#endif
… …
4266 4641
4267 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4642 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4268} 4643}
4269 4644
4270void 4645void
4271ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4646ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4272{ 4647{
4273 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4648 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4274 4649
4275 if (expect_false (!once)) 4650 if (expect_false (!once))
4276 { 4651 {
… …
4298 4673
4299/*****************************************************************************/ 4674/*****************************************************************************/
4300 4675
4301#if EV_WALK_ENABLE 4676#if EV_WALK_ENABLE
4302void ecb_cold 4677void ecb_cold
4303ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4678ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4304{ 4679{
4305 int i, j; 4680 int i, j;
4306 ev_watcher_list *wl, *wn; 4681 ev_watcher_list *wl, *wn;
4307 4682
4308 if (types & (EV_IO | EV_EMBED)) 4683 if (types & (EV_IO | EV_EMBED))

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines