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Comparing libev/ev.c (file contents):
Revision 1.392 by root, Thu Aug 4 14:37:49 2011 UTC vs.
Revision 1.456 by root, Thu Jul 4 22:32:23 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
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
… …
347 357
348#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 360#endif
351 361
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
352/* 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, */
353/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 381# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
360# else 386# else
… …
363# endif 389# endif
364#endif 390#endif
365 391
366/* 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 */
367 393
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
377#endif 397#endif
378 398
… …
386# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
387#endif 407#endif
388 408
389#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
390/* 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 */
391# if !defined(_WIN32) && !defined(__hpux) 411# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 412# include <sys/select.h>
393# endif 413# endif
394#endif 414#endif
395 415
396#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
… …
399/* 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 */
400# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
403# endif 423# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 424#endif
409 425
410#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
411/* 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 */
412# include <stdint.h> 428# include <stdint.h>
… …
469/* 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 */
470/* ECB.H BEGIN */ 486/* ECB.H BEGIN */
471/* 487/*
472 * libecb - http://software.schmorp.de/pkg/libecb 488 * libecb - http://software.schmorp.de/pkg/libecb
473 * 489 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta 491 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved. 492 * All rights reserved.
477 * 493 *
478 * 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-
479 * tion, are permitted provided that the following conditions are met: 495 * tion, are permitted provided that the following conditions are met:
… …
498 */ 514 */
499 515
500#ifndef ECB_H 516#ifndef ECB_H
501#define ECB_H 517#define ECB_H
502 518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003
521
503#ifdef _WIN32 522#ifdef _WIN32
504 typedef signed char int8_t; 523 typedef signed char int8_t;
505 typedef unsigned char uint8_t; 524 typedef unsigned char uint8_t;
506 typedef signed short int16_t; 525 typedef signed short int16_t;
507 typedef unsigned short uint16_t; 526 typedef unsigned short uint16_t;
… …
512 typedef unsigned long long uint64_t; 531 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */ 532 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t; 533 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t; 534 typedef unsigned __int64 uint64_t;
516 #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
517#else 545#else
518 #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
552#endif
553
554/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64
556 #if __ILP32
557 #define ECB_AMD64_X32 1
558 #else
559 #define ECB_AMD64 1
560 #endif
519#endif 561#endif
520 562
521/* many compilers define _GNUC_ to some versions but then only implement 563/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions, 564 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers. 565 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so. 566 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 567 * 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. 568 * an issue with that they should have done it right in the first place.
527 */ 569 */
528#ifndef ECB_GCC_VERSION 570#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 572 #define ECB_GCC_VERSION(major,minor) 0
531 #else 573 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 575 #endif
534#endif 576#endif
535 577
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
579#define ECB_C99 (__STDC_VERSION__ >= 199901L)
580#define ECB_C11 (__STDC_VERSION__ >= 201112L)
581#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L)
583
584#if ECB_CPP
585 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END }
588#else
589 #define ECB_EXTERN_C extern
590 #define ECB_EXTERN_C_BEG
591 #define ECB_EXTERN_C_END
592#endif
593
536/*****************************************************************************/ 594/*****************************************************************************/
537 595
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 596/* 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 */ 597/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 598
541#if ECB_NO_THREADS || ECB_NO_SMP 599#if ECB_NO_THREADS
600 #define ECB_NO_SMP 1
601#endif
602
603#if ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 604 #define ECB_MEMORY_FENCE do { } while (0)
543 #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
544 #define ECB_MEMORY_FENCE_RELEASE do { } while (0)
545#endif 605#endif
546 606
547#ifndef ECB_MEMORY_FENCE 607#ifndef ECB_MEMORY_FENCE
548 #if ECB_GCC_VERSION(2,5) 608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
549 #if __x86 609 #if __i386 || __i386__
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553 #elif __amd64 613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
555 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
556 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
557 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
559 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
560 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \ 620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
561 || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
562 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
563 #define ECB_MEMORY_FENCE \ 624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
564 do { \ 625 #elif __sparc || __sparc__
565 int null = 0; \ 626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
566 __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \ 627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
567 while (0) 628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
568 #endif 642 #endif
569 #endif 643 #endif
570#endif 644#endif
571 645
572#ifndef ECB_MEMORY_FENCE 646#ifndef ECB_MEMORY_FENCE
647 #if ECB_GCC_VERSION(4,7)
648 /* see comment below (stdatomic.h) about the C11 memory model. */
649 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
650
651 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
652 * without risking compile time errors with other compilers. We *could*
653 * define our own ecb_clang_has_feature, but I just can't be bothered to work
654 * around this shit time and again.
655 * #elif defined __clang && __has_feature (cxx_atomic)
656 * // see comment below (stdatomic.h) about the C11 memory model.
657 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
658 */
659
573 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 660 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
574 #define ECB_MEMORY_FENCE __sync_synchronize () 661 #define ECB_MEMORY_FENCE __sync_synchronize ()
575 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
576 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
577 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 662 #elif _MSC_VER >= 1400 /* VC++ 2005 */
578 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 663 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
579 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 664 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
580 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 665 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
581 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 666 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
582 #elif defined(_WIN32) 667 #elif defined _WIN32
583 #include <WinNT.h> 668 #include <WinNT.h>
584 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 669 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
670 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
671 #include <mbarrier.h>
672 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
673 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
674 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
675 #elif __xlC__
676 #define ECB_MEMORY_FENCE __sync ()
677 #endif
678#endif
679
680#ifndef ECB_MEMORY_FENCE
681 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
682 /* we assume that these memory fences work on all variables/all memory accesses, */
683 /* not just C11 atomics and atomic accesses */
684 #include <stdatomic.h>
685 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
686 /* any fence other than seq_cst, which isn't very efficient for us. */
687 /* Why that is, we don't know - either the C11 memory model is quite useless */
688 /* for most usages, or gcc and clang have a bug */
689 /* I *currently* lean towards the latter, and inefficiently implement */
690 /* all three of ecb's fences as a seq_cst fence */
691 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
585 #endif 692 #endif
586#endif 693#endif
587 694
588#ifndef ECB_MEMORY_FENCE 695#ifndef ECB_MEMORY_FENCE
589 #if !ECB_AVOID_PTHREADS 696 #if !ECB_AVOID_PTHREADS
… …
601 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 708 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
602 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 709 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
603 #endif 710 #endif
604#endif 711#endif
605 712
606#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 713#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
607 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 714 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
608#endif 715#endif
609 716
610#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 717#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
611 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 718 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
612#endif 719#endif
613 720
614/*****************************************************************************/ 721/*****************************************************************************/
615
616#define ECB_C99 (__STDC_VERSION__ >= 199901L)
617 722
618#if __cplusplus 723#if __cplusplus
619 #define ecb_inline static inline 724 #define ecb_inline static inline
620#elif ECB_GCC_VERSION(2,5) 725#elif ECB_GCC_VERSION(2,5)
621 #define ecb_inline static __inline__ 726 #define ecb_inline static __inline__
… …
660#elif ECB_GCC_VERSION(3,0) 765#elif ECB_GCC_VERSION(3,0)
661 #define ecb_decltype(x) __typeof(x) 766 #define ecb_decltype(x) __typeof(x)
662#endif 767#endif
663 768
664#define ecb_noinline ecb_attribute ((__noinline__)) 769#define ecb_noinline ecb_attribute ((__noinline__))
665#define ecb_noreturn ecb_attribute ((__noreturn__))
666#define ecb_unused ecb_attribute ((__unused__)) 770#define ecb_unused ecb_attribute ((__unused__))
667#define ecb_const ecb_attribute ((__const__)) 771#define ecb_const ecb_attribute ((__const__))
668#define ecb_pure ecb_attribute ((__pure__)) 772#define ecb_pure ecb_attribute ((__pure__))
773
774#if ECB_C11
775 #define ecb_noreturn _Noreturn
776#else
777 #define ecb_noreturn ecb_attribute ((__noreturn__))
778#endif
669 779
670#if ECB_GCC_VERSION(4,3) 780#if ECB_GCC_VERSION(4,3)
671 #define ecb_artificial ecb_attribute ((__artificial__)) 781 #define ecb_artificial ecb_attribute ((__artificial__))
672 #define ecb_hot ecb_attribute ((__hot__)) 782 #define ecb_hot ecb_attribute ((__hot__))
673 #define ecb_cold ecb_attribute ((__cold__)) 783 #define ecb_cold ecb_attribute ((__cold__))
… …
764 874
765 return r + ecb_ld32 (x); 875 return r + ecb_ld32 (x);
766 } 876 }
767#endif 877#endif
768 878
879ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
880ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
881ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
882ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
883
884ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
885ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
886{
887 return ( (x * 0x0802U & 0x22110U)
888 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
889}
890
891ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
892ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
893{
894 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
895 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
896 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
897 x = ( x >> 8 ) | ( x << 8);
898
899 return x;
900}
901
902ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
903ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
904{
905 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
906 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
907 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
908 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
909 x = ( x >> 16 ) | ( x << 16);
910
911 return x;
912}
913
769/* popcount64 is only available on 64 bit cpus as gcc builtin */ 914/* popcount64 is only available on 64 bit cpus as gcc builtin */
770/* so for this version we are lazy */ 915/* so for this version we are lazy */
771ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 916ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
772ecb_function_ int 917ecb_function_ int
773ecb_popcount64 (uint64_t x) 918ecb_popcount64 (uint64_t x)
… …
822 967
823#if ECB_GCC_VERSION(4,5) 968#if ECB_GCC_VERSION(4,5)
824 #define ecb_unreachable() __builtin_unreachable () 969 #define ecb_unreachable() __builtin_unreachable ()
825#else 970#else
826 /* this seems to work fine, but gcc always emits a warning for it :/ */ 971 /* this seems to work fine, but gcc always emits a warning for it :/ */
827 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 972 ecb_inline void ecb_unreachable (void) ecb_noreturn;
828 ecb_function_ void ecb_unreachable (void) { } 973 ecb_inline void ecb_unreachable (void) { }
829#endif 974#endif
830 975
831/* try to tell the compiler that some condition is definitely true */ 976/* try to tell the compiler that some condition is definitely true */
832#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 977#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
833 978
834ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 979ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
835ecb_function_ unsigned char 980ecb_inline unsigned char
836ecb_byteorder_helper (void) 981ecb_byteorder_helper (void)
837{ 982{
838 const uint32_t u = 0x11223344; 983 /* the union code still generates code under pressure in gcc, */
839 return *(unsigned char *)&u; 984 /* but less than using pointers, and always seems to */
985 /* successfully return a constant. */
986 /* the reason why we have this horrible preprocessor mess */
987 /* is to avoid it in all cases, at least on common architectures */
988 /* or when using a recent enough gcc version (>= 4.6) */
989#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
990 return 0x44;
991#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
992 return 0x44;
993#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
994 return 0x11;
995#else
996 union
997 {
998 uint32_t i;
999 uint8_t c;
1000 } u = { 0x11223344 };
1001 return u.c;
1002#endif
840} 1003}
841 1004
842ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1005ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
843ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1006ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
844ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1007ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
845ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1008ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
846 1009
847#if ECB_GCC_VERSION(3,0) || ECB_C99 1010#if ECB_GCC_VERSION(3,0) || ECB_C99
848 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1011 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
849#else 1012#else
850 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1013 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1014#endif
1015
1016#if __cplusplus
1017 template<typename T>
1018 static inline T ecb_div_rd (T val, T div)
1019 {
1020 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1021 }
1022 template<typename T>
1023 static inline T ecb_div_ru (T val, T div)
1024 {
1025 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1026 }
1027#else
1028 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1029 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
851#endif 1030#endif
852 1031
853#if ecb_cplusplus_does_not_suck 1032#if ecb_cplusplus_does_not_suck
854 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1033 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
855 template<typename T, int N> 1034 template<typename T, int N>
… …
859 } 1038 }
860#else 1039#else
861 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1040 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
862#endif 1041#endif
863 1042
1043/*******************************************************************************/
1044/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1045
1046/* basically, everything uses "ieee pure-endian" floating point numbers */
1047/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1048#if 0 \
1049 || __i386 || __i386__ \
1050 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1051 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1052 || defined __arm__ && defined __ARM_EABI__ \
1053 || defined __s390__ || defined __s390x__ \
1054 || defined __mips__ \
1055 || defined __alpha__ \
1056 || defined __hppa__ \
1057 || defined __ia64__ \
1058 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1059 #define ECB_STDFP 1
1060 #include <string.h> /* for memcpy */
1061#else
1062 #define ECB_STDFP 0
1063 #include <math.h> /* for frexp*, ldexp* */
1064#endif
1065
1066#ifndef ECB_NO_LIBM
1067
1068 /* convert a float to ieee single/binary32 */
1069 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1070 ecb_function_ uint32_t
1071 ecb_float_to_binary32 (float x)
1072 {
1073 uint32_t r;
1074
1075 #if ECB_STDFP
1076 memcpy (&r, &x, 4);
1077 #else
1078 /* slow emulation, works for anything but -0 */
1079 uint32_t m;
1080 int e;
1081
1082 if (x == 0e0f ) return 0x00000000U;
1083 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1084 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1085 if (x != x ) return 0x7fbfffffU;
1086
1087 m = frexpf (x, &e) * 0x1000000U;
1088
1089 r = m & 0x80000000U;
1090
1091 if (r)
1092 m = -m;
1093
1094 if (e <= -126)
1095 {
1096 m &= 0xffffffU;
1097 m >>= (-125 - e);
1098 e = -126;
1099 }
1100
1101 r |= (e + 126) << 23;
1102 r |= m & 0x7fffffU;
1103 #endif
1104
1105 return r;
1106 }
1107
1108 /* converts an ieee single/binary32 to a float */
1109 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1110 ecb_function_ float
1111 ecb_binary32_to_float (uint32_t x)
1112 {
1113 float r;
1114
1115 #if ECB_STDFP
1116 memcpy (&r, &x, 4);
1117 #else
1118 /* emulation, only works for normals and subnormals and +0 */
1119 int neg = x >> 31;
1120 int e = (x >> 23) & 0xffU;
1121
1122 x &= 0x7fffffU;
1123
1124 if (e)
1125 x |= 0x800000U;
1126 else
1127 e = 1;
1128
1129 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1130 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1131
1132 r = neg ? -r : r;
1133 #endif
1134
1135 return r;
1136 }
1137
1138 /* convert a double to ieee double/binary64 */
1139 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1140 ecb_function_ uint64_t
1141 ecb_double_to_binary64 (double x)
1142 {
1143 uint64_t r;
1144
1145 #if ECB_STDFP
1146 memcpy (&r, &x, 8);
1147 #else
1148 /* slow emulation, works for anything but -0 */
1149 uint64_t m;
1150 int e;
1151
1152 if (x == 0e0 ) return 0x0000000000000000U;
1153 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1154 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1155 if (x != x ) return 0X7ff7ffffffffffffU;
1156
1157 m = frexp (x, &e) * 0x20000000000000U;
1158
1159 r = m & 0x8000000000000000;;
1160
1161 if (r)
1162 m = -m;
1163
1164 if (e <= -1022)
1165 {
1166 m &= 0x1fffffffffffffU;
1167 m >>= (-1021 - e);
1168 e = -1022;
1169 }
1170
1171 r |= ((uint64_t)(e + 1022)) << 52;
1172 r |= m & 0xfffffffffffffU;
1173 #endif
1174
1175 return r;
1176 }
1177
1178 /* converts an ieee double/binary64 to a double */
1179 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1180 ecb_function_ double
1181 ecb_binary64_to_double (uint64_t x)
1182 {
1183 double r;
1184
1185 #if ECB_STDFP
1186 memcpy (&r, &x, 8);
1187 #else
1188 /* emulation, only works for normals and subnormals and +0 */
1189 int neg = x >> 63;
1190 int e = (x >> 52) & 0x7ffU;
1191
1192 x &= 0xfffffffffffffU;
1193
1194 if (e)
1195 x |= 0x10000000000000U;
1196 else
1197 e = 1;
1198
1199 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1200 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1201
1202 r = neg ? -r : r;
1203 #endif
1204
1205 return r;
1206 }
1207
1208#endif
1209
864#endif 1210#endif
865 1211
866/* ECB.H END */ 1212/* ECB.H END */
867 1213
868#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1214#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1215/* if your architecture doesn't need memory fences, e.g. because it is
1216 * single-cpu/core, or if you use libev in a project that doesn't use libev
1217 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1218 * libev, in which cases the memory fences become nops.
1219 * alternatively, you can remove this #error and link against libpthread,
1220 * which will then provide the memory fences.
1221 */
1222# error "memory fences not defined for your architecture, please report"
1223#endif
1224
869# undef ECB_MEMORY_FENCE 1225#ifndef ECB_MEMORY_FENCE
870# undef ECB_MEMORY_FENCE_ACQUIRE 1226# define ECB_MEMORY_FENCE do { } while (0)
871# undef ECB_MEMORY_FENCE_RELEASE 1227# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1228# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
872#endif 1229#endif
873 1230
874#define expect_false(cond) ecb_expect_false (cond) 1231#define expect_false(cond) ecb_expect_false (cond)
875#define expect_true(cond) ecb_expect_true (cond) 1232#define expect_true(cond) ecb_expect_true (cond)
876#define noinline ecb_noinline 1233#define noinline ecb_noinline
… …
1023{ 1380{
1024 write (STDERR_FILENO, msg, strlen (msg)); 1381 write (STDERR_FILENO, msg, strlen (msg));
1025} 1382}
1026#endif 1383#endif
1027 1384
1028static void (*syserr_cb)(const char *msg); 1385static void (*syserr_cb)(const char *msg) EV_THROW;
1029 1386
1030void ecb_cold 1387void ecb_cold
1031ev_set_syserr_cb (void (*cb)(const char *msg)) 1388ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1032{ 1389{
1033 syserr_cb = cb; 1390 syserr_cb = cb;
1034} 1391}
1035 1392
1036static void noinline ecb_cold 1393static void noinline ecb_cold
… …
1054 abort (); 1411 abort ();
1055 } 1412 }
1056} 1413}
1057 1414
1058static void * 1415static void *
1059ev_realloc_emul (void *ptr, long size) 1416ev_realloc_emul (void *ptr, long size) EV_THROW
1060{ 1417{
1061#if __GLIBC__
1062 return realloc (ptr, size);
1063#else
1064 /* some systems, notably openbsd and darwin, fail to properly 1418 /* some systems, notably openbsd and darwin, fail to properly
1065 * implement realloc (x, 0) (as required by both ansi c-89 and 1419 * implement realloc (x, 0) (as required by both ansi c-89 and
1066 * the single unix specification, so work around them here. 1420 * the single unix specification, so work around them here.
1421 * recently, also (at least) fedora and debian started breaking it,
1422 * despite documenting it otherwise.
1067 */ 1423 */
1068 1424
1069 if (size) 1425 if (size)
1070 return realloc (ptr, size); 1426 return realloc (ptr, size);
1071 1427
1072 free (ptr); 1428 free (ptr);
1073 return 0; 1429 return 0;
1074#endif
1075} 1430}
1076 1431
1077static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1432static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1078 1433
1079void ecb_cold 1434void ecb_cold
1080ev_set_allocator (void *(*cb)(void *ptr, long size)) 1435ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1081{ 1436{
1082 alloc = cb; 1437 alloc = cb;
1083} 1438}
1084 1439
1085inline_speed void * 1440inline_speed void *
… …
1173 #undef VAR 1528 #undef VAR
1174 }; 1529 };
1175 #include "ev_wrap.h" 1530 #include "ev_wrap.h"
1176 1531
1177 static struct ev_loop default_loop_struct; 1532 static struct ev_loop default_loop_struct;
1178 struct ev_loop *ev_default_loop_ptr; 1533 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1179 1534
1180#else 1535#else
1181 1536
1182 ev_tstamp ev_rt_now; 1537 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1183 #define VAR(name,decl) static decl; 1538 #define VAR(name,decl) static decl;
1184 #include "ev_vars.h" 1539 #include "ev_vars.h"
1185 #undef VAR 1540 #undef VAR
1186 1541
1187 static int ev_default_loop_ptr; 1542 static int ev_default_loop_ptr;
… …
1202 1557
1203/*****************************************************************************/ 1558/*****************************************************************************/
1204 1559
1205#ifndef EV_HAVE_EV_TIME 1560#ifndef EV_HAVE_EV_TIME
1206ev_tstamp 1561ev_tstamp
1207ev_time (void) 1562ev_time (void) EV_THROW
1208{ 1563{
1209#if EV_USE_REALTIME 1564#if EV_USE_REALTIME
1210 if (expect_true (have_realtime)) 1565 if (expect_true (have_realtime))
1211 { 1566 {
1212 struct timespec ts; 1567 struct timespec ts;
… …
1236 return ev_time (); 1591 return ev_time ();
1237} 1592}
1238 1593
1239#if EV_MULTIPLICITY 1594#if EV_MULTIPLICITY
1240ev_tstamp 1595ev_tstamp
1241ev_now (EV_P) 1596ev_now (EV_P) EV_THROW
1242{ 1597{
1243 return ev_rt_now; 1598 return ev_rt_now;
1244} 1599}
1245#endif 1600#endif
1246 1601
1247void 1602void
1248ev_sleep (ev_tstamp delay) 1603ev_sleep (ev_tstamp delay) EV_THROW
1249{ 1604{
1250 if (delay > 0.) 1605 if (delay > 0.)
1251 { 1606 {
1252#if EV_USE_NANOSLEEP 1607#if EV_USE_NANOSLEEP
1253 struct timespec ts; 1608 struct timespec ts;
1254 1609
1255 EV_TS_SET (ts, delay); 1610 EV_TS_SET (ts, delay);
1256 nanosleep (&ts, 0); 1611 nanosleep (&ts, 0);
1257#elif defined(_WIN32) 1612#elif defined _WIN32
1258 Sleep ((unsigned long)(delay * 1e3)); 1613 Sleep ((unsigned long)(delay * 1e3));
1259#else 1614#else
1260 struct timeval tv; 1615 struct timeval tv;
1261 1616
1262 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1617 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1281 1636
1282 do 1637 do
1283 ncur <<= 1; 1638 ncur <<= 1;
1284 while (cnt > ncur); 1639 while (cnt > ncur);
1285 1640
1286 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1641 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1287 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1642 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1288 { 1643 {
1289 ncur *= elem; 1644 ncur *= elem;
1290 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1645 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1291 ncur = ncur - sizeof (void *) * 4; 1646 ncur = ncur - sizeof (void *) * 4;
… …
1334pendingcb (EV_P_ ev_prepare *w, int revents) 1689pendingcb (EV_P_ ev_prepare *w, int revents)
1335{ 1690{
1336} 1691}
1337 1692
1338void noinline 1693void noinline
1339ev_feed_event (EV_P_ void *w, int revents) 1694ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1340{ 1695{
1341 W w_ = (W)w; 1696 W w_ = (W)w;
1342 int pri = ABSPRI (w_); 1697 int pri = ABSPRI (w_);
1343 1698
1344 if (expect_false (w_->pending)) 1699 if (expect_false (w_->pending))
… …
1348 w_->pending = ++pendingcnt [pri]; 1703 w_->pending = ++pendingcnt [pri];
1349 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1704 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1350 pendings [pri][w_->pending - 1].w = w_; 1705 pendings [pri][w_->pending - 1].w = w_;
1351 pendings [pri][w_->pending - 1].events = revents; 1706 pendings [pri][w_->pending - 1].events = revents;
1352 } 1707 }
1708
1709 pendingpri = NUMPRI - 1;
1353} 1710}
1354 1711
1355inline_speed void 1712inline_speed void
1356feed_reverse (EV_P_ W w) 1713feed_reverse (EV_P_ W w)
1357{ 1714{
… …
1403 if (expect_true (!anfd->reify)) 1760 if (expect_true (!anfd->reify))
1404 fd_event_nocheck (EV_A_ fd, revents); 1761 fd_event_nocheck (EV_A_ fd, revents);
1405} 1762}
1406 1763
1407void 1764void
1408ev_feed_fd_event (EV_P_ int fd, int revents) 1765ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1409{ 1766{
1410 if (fd >= 0 && fd < anfdmax) 1767 if (fd >= 0 && fd < anfdmax)
1411 fd_event_nocheck (EV_A_ fd, revents); 1768 fd_event_nocheck (EV_A_ fd, revents);
1412} 1769}
1413 1770
… …
1732static void noinline ecb_cold 2089static void noinline ecb_cold
1733evpipe_init (EV_P) 2090evpipe_init (EV_P)
1734{ 2091{
1735 if (!ev_is_active (&pipe_w)) 2092 if (!ev_is_active (&pipe_w))
1736 { 2093 {
2094 int fds [2];
2095
1737# if EV_USE_EVENTFD 2096# if EV_USE_EVENTFD
2097 fds [0] = -1;
1738 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2098 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1739 if (evfd < 0 && errno == EINVAL) 2099 if (fds [1] < 0 && errno == EINVAL)
1740 evfd = eventfd (0, 0); 2100 fds [1] = eventfd (0, 0);
1741 2101
1742 if (evfd >= 0) 2102 if (fds [1] < 0)
2103# endif
1743 { 2104 {
2105 while (pipe (fds))
2106 ev_syserr ("(libev) error creating signal/async pipe");
2107
2108 fd_intern (fds [0]);
2109 }
2110
1744 evpipe [0] = -1; 2111 evpipe [0] = fds [0];
1745 fd_intern (evfd); /* doing it twice doesn't hurt */ 2112
1746 ev_io_set (&pipe_w, evfd, EV_READ); 2113 if (evpipe [1] < 0)
2114 evpipe [1] = fds [1]; /* first call, set write fd */
2115 else
2116 {
2117 /* on subsequent calls, do not change evpipe [1] */
2118 /* so that evpipe_write can always rely on its value. */
2119 /* this branch does not do anything sensible on windows, */
2120 /* so must not be executed on windows */
2121
2122 dup2 (fds [1], evpipe [1]);
2123 close (fds [1]);
2124 }
2125
2126 fd_intern (evpipe [1]);
2127
2128 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2129 ev_io_start (EV_A_ &pipe_w);
2130 ev_unref (EV_A); /* watcher should not keep loop alive */
2131 }
2132}
2133
2134inline_speed void
2135evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2136{
2137 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2138
2139 if (expect_true (*flag))
2140 return;
2141
2142 *flag = 1;
2143 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2144
2145 pipe_write_skipped = 1;
2146
2147 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2148
2149 if (pipe_write_wanted)
2150 {
2151 int old_errno;
2152
2153 pipe_write_skipped = 0;
2154 ECB_MEMORY_FENCE_RELEASE;
2155
2156 old_errno = errno; /* save errno because write will clobber it */
2157
2158#if EV_USE_EVENTFD
2159 if (evpipe [0] < 0)
2160 {
2161 uint64_t counter = 1;
2162 write (evpipe [1], &counter, sizeof (uint64_t));
1747 } 2163 }
1748 else 2164 else
1749# endif 2165#endif
1750 { 2166 {
1751 while (pipe (evpipe)) 2167#ifdef _WIN32
1752 ev_syserr ("(libev) error creating signal/async pipe"); 2168 WSABUF buf;
1753 2169 DWORD sent;
1754 fd_intern (evpipe [0]); 2170 buf.buf = &buf;
1755 fd_intern (evpipe [1]); 2171 buf.len = 1;
1756 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2172 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1757 } 2173#else
1758
1759 ev_io_start (EV_A_ &pipe_w);
1760 ev_unref (EV_A); /* watcher should not keep loop alive */
1761 }
1762}
1763
1764inline_speed void
1765evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1766{
1767 if (expect_true (*flag))
1768 return;
1769
1770 *flag = 1;
1771
1772 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1773
1774 pipe_write_skipped = 1;
1775
1776 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1777
1778 if (pipe_write_wanted)
1779 {
1780 int old_errno;
1781
1782 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1783
1784 old_errno = errno; /* save errno because write will clobber it */
1785
1786#if EV_USE_EVENTFD
1787 if (evfd >= 0)
1788 {
1789 uint64_t counter = 1;
1790 write (evfd, &counter, sizeof (uint64_t));
1791 }
1792 else
1793#endif
1794 {
1795 /* win32 people keep sending patches that change this write() to send() */
1796 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1797 /* so when you think this write should be a send instead, please find out */
1798 /* where your send() is from - it's definitely not the microsoft send, and */
1799 /* tell me. thank you. */
1800 write (evpipe [1], &(evpipe [1]), 1); 2174 write (evpipe [1], &(evpipe [1]), 1);
2175#endif
1801 } 2176 }
1802 2177
1803 errno = old_errno; 2178 errno = old_errno;
1804 } 2179 }
1805} 2180}
… …
1812 int i; 2187 int i;
1813 2188
1814 if (revents & EV_READ) 2189 if (revents & EV_READ)
1815 { 2190 {
1816#if EV_USE_EVENTFD 2191#if EV_USE_EVENTFD
1817 if (evfd >= 0) 2192 if (evpipe [0] < 0)
1818 { 2193 {
1819 uint64_t counter; 2194 uint64_t counter;
1820 read (evfd, &counter, sizeof (uint64_t)); 2195 read (evpipe [1], &counter, sizeof (uint64_t));
1821 } 2196 }
1822 else 2197 else
1823#endif 2198#endif
1824 { 2199 {
1825 char dummy; 2200 char dummy[4];
1826 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2201#ifdef _WIN32
2202 WSABUF buf;
2203 DWORD recvd;
2204 DWORD flags = 0;
2205 buf.buf = dummy;
2206 buf.len = sizeof (dummy);
2207 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2208#else
1827 read (evpipe [0], &dummy, 1); 2209 read (evpipe [0], &dummy, sizeof (dummy));
2210#endif
1828 } 2211 }
1829 } 2212 }
1830 2213
1831 pipe_write_skipped = 0; 2214 pipe_write_skipped = 0;
2215
2216 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1832 2217
1833#if EV_SIGNAL_ENABLE 2218#if EV_SIGNAL_ENABLE
1834 if (sig_pending) 2219 if (sig_pending)
1835 { 2220 {
1836 sig_pending = 0; 2221 sig_pending = 0;
2222
2223 ECB_MEMORY_FENCE;
1837 2224
1838 for (i = EV_NSIG - 1; i--; ) 2225 for (i = EV_NSIG - 1; i--; )
1839 if (expect_false (signals [i].pending)) 2226 if (expect_false (signals [i].pending))
1840 ev_feed_signal_event (EV_A_ i + 1); 2227 ev_feed_signal_event (EV_A_ i + 1);
1841 } 2228 }
… …
1843 2230
1844#if EV_ASYNC_ENABLE 2231#if EV_ASYNC_ENABLE
1845 if (async_pending) 2232 if (async_pending)
1846 { 2233 {
1847 async_pending = 0; 2234 async_pending = 0;
2235
2236 ECB_MEMORY_FENCE;
1848 2237
1849 for (i = asynccnt; i--; ) 2238 for (i = asynccnt; i--; )
1850 if (asyncs [i]->sent) 2239 if (asyncs [i]->sent)
1851 { 2240 {
1852 asyncs [i]->sent = 0; 2241 asyncs [i]->sent = 0;
2242 ECB_MEMORY_FENCE_RELEASE;
1853 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2243 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1854 } 2244 }
1855 } 2245 }
1856#endif 2246#endif
1857} 2247}
1858 2248
1859/*****************************************************************************/ 2249/*****************************************************************************/
1860 2250
1861void 2251void
1862ev_feed_signal (int signum) 2252ev_feed_signal (int signum) EV_THROW
1863{ 2253{
1864#if EV_MULTIPLICITY 2254#if EV_MULTIPLICITY
2255 EV_P;
2256 ECB_MEMORY_FENCE_ACQUIRE;
1865 EV_P = signals [signum - 1].loop; 2257 EV_A = signals [signum - 1].loop;
1866 2258
1867 if (!EV_A) 2259 if (!EV_A)
1868 return; 2260 return;
1869#endif 2261#endif
1870 2262
1871 if (!ev_active (&pipe_w))
1872 return;
1873
1874 signals [signum - 1].pending = 1; 2263 signals [signum - 1].pending = 1;
1875 evpipe_write (EV_A_ &sig_pending); 2264 evpipe_write (EV_A_ &sig_pending);
1876} 2265}
1877 2266
1878static void 2267static void
… …
1884 2273
1885 ev_feed_signal (signum); 2274 ev_feed_signal (signum);
1886} 2275}
1887 2276
1888void noinline 2277void noinline
1889ev_feed_signal_event (EV_P_ int signum) 2278ev_feed_signal_event (EV_P_ int signum) EV_THROW
1890{ 2279{
1891 WL w; 2280 WL w;
1892 2281
1893 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2282 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1894 return; 2283 return;
1895 2284
1896 --signum; 2285 --signum;
1897 2286
1898#if EV_MULTIPLICITY 2287#if EV_MULTIPLICITY
… …
1902 if (expect_false (signals [signum].loop != EV_A)) 2291 if (expect_false (signals [signum].loop != EV_A))
1903 return; 2292 return;
1904#endif 2293#endif
1905 2294
1906 signals [signum].pending = 0; 2295 signals [signum].pending = 0;
2296 ECB_MEMORY_FENCE_RELEASE;
1907 2297
1908 for (w = signals [signum].head; w; w = w->next) 2298 for (w = signals [signum].head; w; w = w->next)
1909 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2299 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1910} 2300}
1911 2301
… …
2010#if EV_USE_SELECT 2400#if EV_USE_SELECT
2011# include "ev_select.c" 2401# include "ev_select.c"
2012#endif 2402#endif
2013 2403
2014int ecb_cold 2404int ecb_cold
2015ev_version_major (void) 2405ev_version_major (void) EV_THROW
2016{ 2406{
2017 return EV_VERSION_MAJOR; 2407 return EV_VERSION_MAJOR;
2018} 2408}
2019 2409
2020int ecb_cold 2410int ecb_cold
2021ev_version_minor (void) 2411ev_version_minor (void) EV_THROW
2022{ 2412{
2023 return EV_VERSION_MINOR; 2413 return EV_VERSION_MINOR;
2024} 2414}
2025 2415
2026/* return true if we are running with elevated privileges and should ignore env variables */ 2416/* return true if we are running with elevated privileges and should ignore env variables */
… …
2034 || getgid () != getegid (); 2424 || getgid () != getegid ();
2035#endif 2425#endif
2036} 2426}
2037 2427
2038unsigned int ecb_cold 2428unsigned int ecb_cold
2039ev_supported_backends (void) 2429ev_supported_backends (void) EV_THROW
2040{ 2430{
2041 unsigned int flags = 0; 2431 unsigned int flags = 0;
2042 2432
2043 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2433 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2044 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2434 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2048 2438
2049 return flags; 2439 return flags;
2050} 2440}
2051 2441
2052unsigned int ecb_cold 2442unsigned int ecb_cold
2053ev_recommended_backends (void) 2443ev_recommended_backends (void) EV_THROW
2054{ 2444{
2055 unsigned int flags = ev_supported_backends (); 2445 unsigned int flags = ev_supported_backends ();
2056 2446
2057#ifndef __NetBSD__ 2447#ifndef __NetBSD__
2058 /* kqueue is borked on everything but netbsd apparently */ 2448 /* kqueue is borked on everything but netbsd apparently */
… …
2070 2460
2071 return flags; 2461 return flags;
2072} 2462}
2073 2463
2074unsigned int ecb_cold 2464unsigned int ecb_cold
2075ev_embeddable_backends (void) 2465ev_embeddable_backends (void) EV_THROW
2076{ 2466{
2077 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2467 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2078 2468
2079 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2469 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2080 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2470 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2082 2472
2083 return flags; 2473 return flags;
2084} 2474}
2085 2475
2086unsigned int 2476unsigned int
2087ev_backend (EV_P) 2477ev_backend (EV_P) EV_THROW
2088{ 2478{
2089 return backend; 2479 return backend;
2090} 2480}
2091 2481
2092#if EV_FEATURE_API 2482#if EV_FEATURE_API
2093unsigned int 2483unsigned int
2094ev_iteration (EV_P) 2484ev_iteration (EV_P) EV_THROW
2095{ 2485{
2096 return loop_count; 2486 return loop_count;
2097} 2487}
2098 2488
2099unsigned int 2489unsigned int
2100ev_depth (EV_P) 2490ev_depth (EV_P) EV_THROW
2101{ 2491{
2102 return loop_depth; 2492 return loop_depth;
2103} 2493}
2104 2494
2105void 2495void
2106ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2496ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2107{ 2497{
2108 io_blocktime = interval; 2498 io_blocktime = interval;
2109} 2499}
2110 2500
2111void 2501void
2112ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2502ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2113{ 2503{
2114 timeout_blocktime = interval; 2504 timeout_blocktime = interval;
2115} 2505}
2116 2506
2117void 2507void
2118ev_set_userdata (EV_P_ void *data) 2508ev_set_userdata (EV_P_ void *data) EV_THROW
2119{ 2509{
2120 userdata = data; 2510 userdata = data;
2121} 2511}
2122 2512
2123void * 2513void *
2124ev_userdata (EV_P) 2514ev_userdata (EV_P) EV_THROW
2125{ 2515{
2126 return userdata; 2516 return userdata;
2127} 2517}
2128 2518
2129void 2519void
2130ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2520ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2131{ 2521{
2132 invoke_cb = invoke_pending_cb; 2522 invoke_cb = invoke_pending_cb;
2133} 2523}
2134 2524
2135void 2525void
2136ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2526ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2137{ 2527{
2138 release_cb = release; 2528 release_cb = release;
2139 acquire_cb = acquire; 2529 acquire_cb = acquire;
2140} 2530}
2141#endif 2531#endif
2142 2532
2143/* initialise a loop structure, must be zero-initialised */ 2533/* initialise a loop structure, must be zero-initialised */
2144static void noinline ecb_cold 2534static void noinline ecb_cold
2145loop_init (EV_P_ unsigned int flags) 2535loop_init (EV_P_ unsigned int flags) EV_THROW
2146{ 2536{
2147 if (!backend) 2537 if (!backend)
2148 { 2538 {
2149 origflags = flags; 2539 origflags = flags;
2150 2540
… …
2195#if EV_ASYNC_ENABLE 2585#if EV_ASYNC_ENABLE
2196 async_pending = 0; 2586 async_pending = 0;
2197#endif 2587#endif
2198 pipe_write_skipped = 0; 2588 pipe_write_skipped = 0;
2199 pipe_write_wanted = 0; 2589 pipe_write_wanted = 0;
2590 evpipe [0] = -1;
2591 evpipe [1] = -1;
2200#if EV_USE_INOTIFY 2592#if EV_USE_INOTIFY
2201 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2593 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2202#endif 2594#endif
2203#if EV_USE_SIGNALFD 2595#if EV_USE_SIGNALFD
2204 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2596 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2255 EV_INVOKE_PENDING; 2647 EV_INVOKE_PENDING;
2256 } 2648 }
2257#endif 2649#endif
2258 2650
2259#if EV_CHILD_ENABLE 2651#if EV_CHILD_ENABLE
2260 if (ev_is_active (&childev)) 2652 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2261 { 2653 {
2262 ev_ref (EV_A); /* child watcher */ 2654 ev_ref (EV_A); /* child watcher */
2263 ev_signal_stop (EV_A_ &childev); 2655 ev_signal_stop (EV_A_ &childev);
2264 } 2656 }
2265#endif 2657#endif
… …
2267 if (ev_is_active (&pipe_w)) 2659 if (ev_is_active (&pipe_w))
2268 { 2660 {
2269 /*ev_ref (EV_A);*/ 2661 /*ev_ref (EV_A);*/
2270 /*ev_io_stop (EV_A_ &pipe_w);*/ 2662 /*ev_io_stop (EV_A_ &pipe_w);*/
2271 2663
2272#if EV_USE_EVENTFD
2273 if (evfd >= 0)
2274 close (evfd);
2275#endif
2276
2277 if (evpipe [0] >= 0)
2278 {
2279 EV_WIN32_CLOSE_FD (evpipe [0]); 2664 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2280 EV_WIN32_CLOSE_FD (evpipe [1]); 2665 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2281 }
2282 } 2666 }
2283 2667
2284#if EV_USE_SIGNALFD 2668#if EV_USE_SIGNALFD
2285 if (ev_is_active (&sigfd_w)) 2669 if (ev_is_active (&sigfd_w))
2286 close (sigfd); 2670 close (sigfd);
… …
2372#endif 2756#endif
2373#if EV_USE_INOTIFY 2757#if EV_USE_INOTIFY
2374 infy_fork (EV_A); 2758 infy_fork (EV_A);
2375#endif 2759#endif
2376 2760
2761#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2377 if (ev_is_active (&pipe_w)) 2762 if (ev_is_active (&pipe_w))
2378 { 2763 {
2379 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2764 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2380 2765
2381 ev_ref (EV_A); 2766 ev_ref (EV_A);
2382 ev_io_stop (EV_A_ &pipe_w); 2767 ev_io_stop (EV_A_ &pipe_w);
2383 2768
2384#if EV_USE_EVENTFD
2385 if (evfd >= 0)
2386 close (evfd);
2387#endif
2388
2389 if (evpipe [0] >= 0) 2769 if (evpipe [0] >= 0)
2390 {
2391 EV_WIN32_CLOSE_FD (evpipe [0]); 2770 EV_WIN32_CLOSE_FD (evpipe [0]);
2392 EV_WIN32_CLOSE_FD (evpipe [1]);
2393 }
2394 2771
2395#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2396 evpipe_init (EV_A); 2772 evpipe_init (EV_A);
2397 /* now iterate over everything, in case we missed something */ 2773 /* iterate over everything, in case we missed something before */
2398 pipecb (EV_A_ &pipe_w, EV_READ); 2774 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2399#endif
2400 } 2775 }
2776#endif
2401 2777
2402 postfork = 0; 2778 postfork = 0;
2403} 2779}
2404 2780
2405#if EV_MULTIPLICITY 2781#if EV_MULTIPLICITY
2406 2782
2407struct ev_loop * ecb_cold 2783struct ev_loop * ecb_cold
2408ev_loop_new (unsigned int flags) 2784ev_loop_new (unsigned int flags) EV_THROW
2409{ 2785{
2410 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2786 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2411 2787
2412 memset (EV_A, 0, sizeof (struct ev_loop)); 2788 memset (EV_A, 0, sizeof (struct ev_loop));
2413 loop_init (EV_A_ flags); 2789 loop_init (EV_A_ flags);
… …
2457} 2833}
2458#endif 2834#endif
2459 2835
2460#if EV_FEATURE_API 2836#if EV_FEATURE_API
2461void ecb_cold 2837void ecb_cold
2462ev_verify (EV_P) 2838ev_verify (EV_P) EV_THROW
2463{ 2839{
2464#if EV_VERIFY 2840#if EV_VERIFY
2465 int i; 2841 int i;
2466 WL w; 2842 WL w, w2;
2467 2843
2468 assert (activecnt >= -1); 2844 assert (activecnt >= -1);
2469 2845
2470 assert (fdchangemax >= fdchangecnt); 2846 assert (fdchangemax >= fdchangecnt);
2471 for (i = 0; i < fdchangecnt; ++i) 2847 for (i = 0; i < fdchangecnt; ++i)
2472 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2848 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2473 2849
2474 assert (anfdmax >= 0); 2850 assert (anfdmax >= 0);
2475 for (i = 0; i < anfdmax; ++i) 2851 for (i = 0; i < anfdmax; ++i)
2852 {
2853 int j = 0;
2854
2476 for (w = anfds [i].head; w; w = w->next) 2855 for (w = w2 = anfds [i].head; w; w = w->next)
2477 { 2856 {
2478 verify_watcher (EV_A_ (W)w); 2857 verify_watcher (EV_A_ (W)w);
2858
2859 if (j++ & 1)
2860 {
2861 assert (("libev: io watcher list contains a loop", w != w2));
2862 w2 = w2->next;
2863 }
2864
2479 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2865 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2480 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2866 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2481 } 2867 }
2868 }
2482 2869
2483 assert (timermax >= timercnt); 2870 assert (timermax >= timercnt);
2484 verify_heap (EV_A_ timers, timercnt); 2871 verify_heap (EV_A_ timers, timercnt);
2485 2872
2486#if EV_PERIODIC_ENABLE 2873#if EV_PERIODIC_ENABLE
… …
2536#if EV_MULTIPLICITY 2923#if EV_MULTIPLICITY
2537struct ev_loop * ecb_cold 2924struct ev_loop * ecb_cold
2538#else 2925#else
2539int 2926int
2540#endif 2927#endif
2541ev_default_loop (unsigned int flags) 2928ev_default_loop (unsigned int flags) EV_THROW
2542{ 2929{
2543 if (!ev_default_loop_ptr) 2930 if (!ev_default_loop_ptr)
2544 { 2931 {
2545#if EV_MULTIPLICITY 2932#if EV_MULTIPLICITY
2546 EV_P = ev_default_loop_ptr = &default_loop_struct; 2933 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2565 2952
2566 return ev_default_loop_ptr; 2953 return ev_default_loop_ptr;
2567} 2954}
2568 2955
2569void 2956void
2570ev_loop_fork (EV_P) 2957ev_loop_fork (EV_P) EV_THROW
2571{ 2958{
2572 postfork = 1; /* must be in line with ev_default_fork */ 2959 postfork = 1;
2573} 2960}
2574 2961
2575/*****************************************************************************/ 2962/*****************************************************************************/
2576 2963
2577void 2964void
… …
2579{ 2966{
2580 EV_CB_INVOKE ((W)w, revents); 2967 EV_CB_INVOKE ((W)w, revents);
2581} 2968}
2582 2969
2583unsigned int 2970unsigned int
2584ev_pending_count (EV_P) 2971ev_pending_count (EV_P) EV_THROW
2585{ 2972{
2586 int pri; 2973 int pri;
2587 unsigned int count = 0; 2974 unsigned int count = 0;
2588 2975
2589 for (pri = NUMPRI; pri--; ) 2976 for (pri = NUMPRI; pri--; )
… …
2593} 2980}
2594 2981
2595void noinline 2982void noinline
2596ev_invoke_pending (EV_P) 2983ev_invoke_pending (EV_P)
2597{ 2984{
2598 int pri; 2985 pendingpri = NUMPRI;
2599 2986
2600 for (pri = NUMPRI; pri--; ) 2987 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2988 {
2989 --pendingpri;
2990
2601 while (pendingcnt [pri]) 2991 while (pendingcnt [pendingpri])
2602 { 2992 {
2603 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2993 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2604 2994
2605 p->w->pending = 0; 2995 p->w->pending = 0;
2606 EV_CB_INVOKE (p->w, p->events); 2996 EV_CB_INVOKE (p->w, p->events);
2607 EV_FREQUENT_CHECK; 2997 EV_FREQUENT_CHECK;
2608 } 2998 }
2999 }
2609} 3000}
2610 3001
2611#if EV_IDLE_ENABLE 3002#if EV_IDLE_ENABLE
2612/* make idle watchers pending. this handles the "call-idle */ 3003/* make idle watchers pending. this handles the "call-idle */
2613/* only when higher priorities are idle" logic */ 3004/* only when higher priorities are idle" logic */
… …
2703{ 3094{
2704 EV_FREQUENT_CHECK; 3095 EV_FREQUENT_CHECK;
2705 3096
2706 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3097 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2707 { 3098 {
2708 int feed_count = 0;
2709
2710 do 3099 do
2711 { 3100 {
2712 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3101 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2713 3102
2714 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3103 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2848 3237
2849 mn_now = ev_rt_now; 3238 mn_now = ev_rt_now;
2850 } 3239 }
2851} 3240}
2852 3241
2853void 3242int
2854ev_run (EV_P_ int flags) 3243ev_run (EV_P_ int flags)
2855{ 3244{
2856#if EV_FEATURE_API 3245#if EV_FEATURE_API
2857 ++loop_depth; 3246 ++loop_depth;
2858#endif 3247#endif
… …
2971#endif 3360#endif
2972 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3361 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2973 backend_poll (EV_A_ waittime); 3362 backend_poll (EV_A_ waittime);
2974 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3363 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2975 3364
2976 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3365 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2977 3366
3367 ECB_MEMORY_FENCE_ACQUIRE;
2978 if (pipe_write_skipped) 3368 if (pipe_write_skipped)
2979 { 3369 {
2980 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3370 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2981 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3371 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2982 } 3372 }
… …
3015 loop_done = EVBREAK_CANCEL; 3405 loop_done = EVBREAK_CANCEL;
3016 3406
3017#if EV_FEATURE_API 3407#if EV_FEATURE_API
3018 --loop_depth; 3408 --loop_depth;
3019#endif 3409#endif
3410
3411 return activecnt;
3020} 3412}
3021 3413
3022void 3414void
3023ev_break (EV_P_ int how) 3415ev_break (EV_P_ int how) EV_THROW
3024{ 3416{
3025 loop_done = how; 3417 loop_done = how;
3026} 3418}
3027 3419
3028void 3420void
3029ev_ref (EV_P) 3421ev_ref (EV_P) EV_THROW
3030{ 3422{
3031 ++activecnt; 3423 ++activecnt;
3032} 3424}
3033 3425
3034void 3426void
3035ev_unref (EV_P) 3427ev_unref (EV_P) EV_THROW
3036{ 3428{
3037 --activecnt; 3429 --activecnt;
3038} 3430}
3039 3431
3040void 3432void
3041ev_now_update (EV_P) 3433ev_now_update (EV_P) EV_THROW
3042{ 3434{
3043 time_update (EV_A_ 1e100); 3435 time_update (EV_A_ 1e100);
3044} 3436}
3045 3437
3046void 3438void
3047ev_suspend (EV_P) 3439ev_suspend (EV_P) EV_THROW
3048{ 3440{
3049 ev_now_update (EV_A); 3441 ev_now_update (EV_A);
3050} 3442}
3051 3443
3052void 3444void
3053ev_resume (EV_P) 3445ev_resume (EV_P) EV_THROW
3054{ 3446{
3055 ev_tstamp mn_prev = mn_now; 3447 ev_tstamp mn_prev = mn_now;
3056 3448
3057 ev_now_update (EV_A); 3449 ev_now_update (EV_A);
3058 timers_reschedule (EV_A_ mn_now - mn_prev); 3450 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3097 w->pending = 0; 3489 w->pending = 0;
3098 } 3490 }
3099} 3491}
3100 3492
3101int 3493int
3102ev_clear_pending (EV_P_ void *w) 3494ev_clear_pending (EV_P_ void *w) EV_THROW
3103{ 3495{
3104 W w_ = (W)w; 3496 W w_ = (W)w;
3105 int pending = w_->pending; 3497 int pending = w_->pending;
3106 3498
3107 if (expect_true (pending)) 3499 if (expect_true (pending))
… …
3140} 3532}
3141 3533
3142/*****************************************************************************/ 3534/*****************************************************************************/
3143 3535
3144void noinline 3536void noinline
3145ev_io_start (EV_P_ ev_io *w) 3537ev_io_start (EV_P_ ev_io *w) EV_THROW
3146{ 3538{
3147 int fd = w->fd; 3539 int fd = w->fd;
3148 3540
3149 if (expect_false (ev_is_active (w))) 3541 if (expect_false (ev_is_active (w)))
3150 return; 3542 return;
… …
3156 3548
3157 ev_start (EV_A_ (W)w, 1); 3549 ev_start (EV_A_ (W)w, 1);
3158 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3550 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3159 wlist_add (&anfds[fd].head, (WL)w); 3551 wlist_add (&anfds[fd].head, (WL)w);
3160 3552
3553 /* common bug, apparently */
3554 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3555
3161 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3556 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3162 w->events &= ~EV__IOFDSET; 3557 w->events &= ~EV__IOFDSET;
3163 3558
3164 EV_FREQUENT_CHECK; 3559 EV_FREQUENT_CHECK;
3165} 3560}
3166 3561
3167void noinline 3562void noinline
3168ev_io_stop (EV_P_ ev_io *w) 3563ev_io_stop (EV_P_ ev_io *w) EV_THROW
3169{ 3564{
3170 clear_pending (EV_A_ (W)w); 3565 clear_pending (EV_A_ (W)w);
3171 if (expect_false (!ev_is_active (w))) 3566 if (expect_false (!ev_is_active (w)))
3172 return; 3567 return;
3173 3568
… …
3182 3577
3183 EV_FREQUENT_CHECK; 3578 EV_FREQUENT_CHECK;
3184} 3579}
3185 3580
3186void noinline 3581void noinline
3187ev_timer_start (EV_P_ ev_timer *w) 3582ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3188{ 3583{
3189 if (expect_false (ev_is_active (w))) 3584 if (expect_false (ev_is_active (w)))
3190 return; 3585 return;
3191 3586
3192 ev_at (w) += mn_now; 3587 ev_at (w) += mn_now;
… …
3206 3601
3207 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3602 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3208} 3603}
3209 3604
3210void noinline 3605void noinline
3211ev_timer_stop (EV_P_ ev_timer *w) 3606ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3212{ 3607{
3213 clear_pending (EV_A_ (W)w); 3608 clear_pending (EV_A_ (W)w);
3214 if (expect_false (!ev_is_active (w))) 3609 if (expect_false (!ev_is_active (w)))
3215 return; 3610 return;
3216 3611
… …
3236 3631
3237 EV_FREQUENT_CHECK; 3632 EV_FREQUENT_CHECK;
3238} 3633}
3239 3634
3240void noinline 3635void noinline
3241ev_timer_again (EV_P_ ev_timer *w) 3636ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3242{ 3637{
3243 EV_FREQUENT_CHECK; 3638 EV_FREQUENT_CHECK;
3639
3640 clear_pending (EV_A_ (W)w);
3244 3641
3245 if (ev_is_active (w)) 3642 if (ev_is_active (w))
3246 { 3643 {
3247 if (w->repeat) 3644 if (w->repeat)
3248 { 3645 {
… …
3261 3658
3262 EV_FREQUENT_CHECK; 3659 EV_FREQUENT_CHECK;
3263} 3660}
3264 3661
3265ev_tstamp 3662ev_tstamp
3266ev_timer_remaining (EV_P_ ev_timer *w) 3663ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3267{ 3664{
3268 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3665 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3269} 3666}
3270 3667
3271#if EV_PERIODIC_ENABLE 3668#if EV_PERIODIC_ENABLE
3272void noinline 3669void noinline
3273ev_periodic_start (EV_P_ ev_periodic *w) 3670ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3274{ 3671{
3275 if (expect_false (ev_is_active (w))) 3672 if (expect_false (ev_is_active (w)))
3276 return; 3673 return;
3277 3674
3278 if (w->reschedule_cb) 3675 if (w->reschedule_cb)
… …
3298 3695
3299 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3696 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3300} 3697}
3301 3698
3302void noinline 3699void noinline
3303ev_periodic_stop (EV_P_ ev_periodic *w) 3700ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3304{ 3701{
3305 clear_pending (EV_A_ (W)w); 3702 clear_pending (EV_A_ (W)w);
3306 if (expect_false (!ev_is_active (w))) 3703 if (expect_false (!ev_is_active (w)))
3307 return; 3704 return;
3308 3705
… …
3326 3723
3327 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
3328} 3725}
3329 3726
3330void noinline 3727void noinline
3331ev_periodic_again (EV_P_ ev_periodic *w) 3728ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3332{ 3729{
3333 /* TODO: use adjustheap and recalculation */ 3730 /* TODO: use adjustheap and recalculation */
3334 ev_periodic_stop (EV_A_ w); 3731 ev_periodic_stop (EV_A_ w);
3335 ev_periodic_start (EV_A_ w); 3732 ev_periodic_start (EV_A_ w);
3336} 3733}
… …
3341#endif 3738#endif
3342 3739
3343#if EV_SIGNAL_ENABLE 3740#if EV_SIGNAL_ENABLE
3344 3741
3345void noinline 3742void noinline
3346ev_signal_start (EV_P_ ev_signal *w) 3743ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3347{ 3744{
3348 if (expect_false (ev_is_active (w))) 3745 if (expect_false (ev_is_active (w)))
3349 return; 3746 return;
3350 3747
3351 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3748 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3353#if EV_MULTIPLICITY 3750#if EV_MULTIPLICITY
3354 assert (("libev: a signal must not be attached to two different loops", 3751 assert (("libev: a signal must not be attached to two different loops",
3355 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3752 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3356 3753
3357 signals [w->signum - 1].loop = EV_A; 3754 signals [w->signum - 1].loop = EV_A;
3755 ECB_MEMORY_FENCE_RELEASE;
3358#endif 3756#endif
3359 3757
3360 EV_FREQUENT_CHECK; 3758 EV_FREQUENT_CHECK;
3361 3759
3362#if EV_USE_SIGNALFD 3760#if EV_USE_SIGNALFD
… …
3422 3820
3423 EV_FREQUENT_CHECK; 3821 EV_FREQUENT_CHECK;
3424} 3822}
3425 3823
3426void noinline 3824void noinline
3427ev_signal_stop (EV_P_ ev_signal *w) 3825ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3428{ 3826{
3429 clear_pending (EV_A_ (W)w); 3827 clear_pending (EV_A_ (W)w);
3430 if (expect_false (!ev_is_active (w))) 3828 if (expect_false (!ev_is_active (w)))
3431 return; 3829 return;
3432 3830
… …
3463#endif 3861#endif
3464 3862
3465#if EV_CHILD_ENABLE 3863#if EV_CHILD_ENABLE
3466 3864
3467void 3865void
3468ev_child_start (EV_P_ ev_child *w) 3866ev_child_start (EV_P_ ev_child *w) EV_THROW
3469{ 3867{
3470#if EV_MULTIPLICITY 3868#if EV_MULTIPLICITY
3471 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3869 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3472#endif 3870#endif
3473 if (expect_false (ev_is_active (w))) 3871 if (expect_false (ev_is_active (w)))
… …
3480 3878
3481 EV_FREQUENT_CHECK; 3879 EV_FREQUENT_CHECK;
3482} 3880}
3483 3881
3484void 3882void
3485ev_child_stop (EV_P_ ev_child *w) 3883ev_child_stop (EV_P_ ev_child *w) EV_THROW
3486{ 3884{
3487 clear_pending (EV_A_ (W)w); 3885 clear_pending (EV_A_ (W)w);
3488 if (expect_false (!ev_is_active (w))) 3886 if (expect_false (!ev_is_active (w)))
3489 return; 3887 return;
3490 3888
… …
3517# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3915# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3518 3916
3519static void noinline 3917static void noinline
3520infy_add (EV_P_ ev_stat *w) 3918infy_add (EV_P_ ev_stat *w)
3521{ 3919{
3522 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); 3920 w->wd = inotify_add_watch (fs_fd, w->path,
3921 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3922 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3923 | IN_DONT_FOLLOW | IN_MASK_ADD);
3523 3924
3524 if (w->wd >= 0) 3925 if (w->wd >= 0)
3525 { 3926 {
3526 struct statfs sfs; 3927 struct statfs sfs;
3527 3928
… …
3531 3932
3532 if (!fs_2625) 3933 if (!fs_2625)
3533 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3934 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3534 else if (!statfs (w->path, &sfs) 3935 else if (!statfs (w->path, &sfs)
3535 && (sfs.f_type == 0x1373 /* devfs */ 3936 && (sfs.f_type == 0x1373 /* devfs */
3937 || sfs.f_type == 0x4006 /* fat */
3938 || sfs.f_type == 0x4d44 /* msdos */
3536 || sfs.f_type == 0xEF53 /* ext2/3 */ 3939 || sfs.f_type == 0xEF53 /* ext2/3 */
3940 || sfs.f_type == 0x72b6 /* jffs2 */
3941 || sfs.f_type == 0x858458f6 /* ramfs */
3942 || sfs.f_type == 0x5346544e /* ntfs */
3537 || sfs.f_type == 0x3153464a /* jfs */ 3943 || sfs.f_type == 0x3153464a /* jfs */
3944 || sfs.f_type == 0x9123683e /* btrfs */
3538 || sfs.f_type == 0x52654973 /* reiser3 */ 3945 || sfs.f_type == 0x52654973 /* reiser3 */
3539 || sfs.f_type == 0x01021994 /* tempfs */ 3946 || sfs.f_type == 0x01021994 /* tmpfs */
3540 || sfs.f_type == 0x58465342 /* xfs */)) 3947 || sfs.f_type == 0x58465342 /* xfs */))
3541 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3948 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3542 else 3949 else
3543 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3950 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3544 } 3951 }
… …
3657} 4064}
3658 4065
3659inline_size int 4066inline_size int
3660infy_newfd (void) 4067infy_newfd (void)
3661{ 4068{
3662#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4069#if defined IN_CLOEXEC && defined IN_NONBLOCK
3663 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4070 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3664 if (fd >= 0) 4071 if (fd >= 0)
3665 return fd; 4072 return fd;
3666#endif 4073#endif
3667 return inotify_init (); 4074 return inotify_init ();
… …
3742#else 4149#else
3743# define EV_LSTAT(p,b) lstat (p, b) 4150# define EV_LSTAT(p,b) lstat (p, b)
3744#endif 4151#endif
3745 4152
3746void 4153void
3747ev_stat_stat (EV_P_ ev_stat *w) 4154ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3748{ 4155{
3749 if (lstat (w->path, &w->attr) < 0) 4156 if (lstat (w->path, &w->attr) < 0)
3750 w->attr.st_nlink = 0; 4157 w->attr.st_nlink = 0;
3751 else if (!w->attr.st_nlink) 4158 else if (!w->attr.st_nlink)
3752 w->attr.st_nlink = 1; 4159 w->attr.st_nlink = 1;
… …
3791 ev_feed_event (EV_A_ w, EV_STAT); 4198 ev_feed_event (EV_A_ w, EV_STAT);
3792 } 4199 }
3793} 4200}
3794 4201
3795void 4202void
3796ev_stat_start (EV_P_ ev_stat *w) 4203ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3797{ 4204{
3798 if (expect_false (ev_is_active (w))) 4205 if (expect_false (ev_is_active (w)))
3799 return; 4206 return;
3800 4207
3801 ev_stat_stat (EV_A_ w); 4208 ev_stat_stat (EV_A_ w);
… …
3822 4229
3823 EV_FREQUENT_CHECK; 4230 EV_FREQUENT_CHECK;
3824} 4231}
3825 4232
3826void 4233void
3827ev_stat_stop (EV_P_ ev_stat *w) 4234ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3828{ 4235{
3829 clear_pending (EV_A_ (W)w); 4236 clear_pending (EV_A_ (W)w);
3830 if (expect_false (!ev_is_active (w))) 4237 if (expect_false (!ev_is_active (w)))
3831 return; 4238 return;
3832 4239
… …
3848} 4255}
3849#endif 4256#endif
3850 4257
3851#if EV_IDLE_ENABLE 4258#if EV_IDLE_ENABLE
3852void 4259void
3853ev_idle_start (EV_P_ ev_idle *w) 4260ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3854{ 4261{
3855 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3856 return; 4263 return;
3857 4264
3858 pri_adjust (EV_A_ (W)w); 4265 pri_adjust (EV_A_ (W)w);
… …
3871 4278
3872 EV_FREQUENT_CHECK; 4279 EV_FREQUENT_CHECK;
3873} 4280}
3874 4281
3875void 4282void
3876ev_idle_stop (EV_P_ ev_idle *w) 4283ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3877{ 4284{
3878 clear_pending (EV_A_ (W)w); 4285 clear_pending (EV_A_ (W)w);
3879 if (expect_false (!ev_is_active (w))) 4286 if (expect_false (!ev_is_active (w)))
3880 return; 4287 return;
3881 4288
… …
3895} 4302}
3896#endif 4303#endif
3897 4304
3898#if EV_PREPARE_ENABLE 4305#if EV_PREPARE_ENABLE
3899void 4306void
3900ev_prepare_start (EV_P_ ev_prepare *w) 4307ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3901{ 4308{
3902 if (expect_false (ev_is_active (w))) 4309 if (expect_false (ev_is_active (w)))
3903 return; 4310 return;
3904 4311
3905 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
… …
3910 4317
3911 EV_FREQUENT_CHECK; 4318 EV_FREQUENT_CHECK;
3912} 4319}
3913 4320
3914void 4321void
3915ev_prepare_stop (EV_P_ ev_prepare *w) 4322ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3916{ 4323{
3917 clear_pending (EV_A_ (W)w); 4324 clear_pending (EV_A_ (W)w);
3918 if (expect_false (!ev_is_active (w))) 4325 if (expect_false (!ev_is_active (w)))
3919 return; 4326 return;
3920 4327
… …
3933} 4340}
3934#endif 4341#endif
3935 4342
3936#if EV_CHECK_ENABLE 4343#if EV_CHECK_ENABLE
3937void 4344void
3938ev_check_start (EV_P_ ev_check *w) 4345ev_check_start (EV_P_ ev_check *w) EV_THROW
3939{ 4346{
3940 if (expect_false (ev_is_active (w))) 4347 if (expect_false (ev_is_active (w)))
3941 return; 4348 return;
3942 4349
3943 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
… …
3948 4355
3949 EV_FREQUENT_CHECK; 4356 EV_FREQUENT_CHECK;
3950} 4357}
3951 4358
3952void 4359void
3953ev_check_stop (EV_P_ ev_check *w) 4360ev_check_stop (EV_P_ ev_check *w) EV_THROW
3954{ 4361{
3955 clear_pending (EV_A_ (W)w); 4362 clear_pending (EV_A_ (W)w);
3956 if (expect_false (!ev_is_active (w))) 4363 if (expect_false (!ev_is_active (w)))
3957 return; 4364 return;
3958 4365
… …
3971} 4378}
3972#endif 4379#endif
3973 4380
3974#if EV_EMBED_ENABLE 4381#if EV_EMBED_ENABLE
3975void noinline 4382void noinline
3976ev_embed_sweep (EV_P_ ev_embed *w) 4383ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3977{ 4384{
3978 ev_run (w->other, EVRUN_NOWAIT); 4385 ev_run (w->other, EVRUN_NOWAIT);
3979} 4386}
3980 4387
3981static void 4388static void
… …
4029 ev_idle_stop (EV_A_ idle); 4436 ev_idle_stop (EV_A_ idle);
4030} 4437}
4031#endif 4438#endif
4032 4439
4033void 4440void
4034ev_embed_start (EV_P_ ev_embed *w) 4441ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4035{ 4442{
4036 if (expect_false (ev_is_active (w))) 4443 if (expect_false (ev_is_active (w)))
4037 return; 4444 return;
4038 4445
4039 { 4446 {
… …
4060 4467
4061 EV_FREQUENT_CHECK; 4468 EV_FREQUENT_CHECK;
4062} 4469}
4063 4470
4064void 4471void
4065ev_embed_stop (EV_P_ ev_embed *w) 4472ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4066{ 4473{
4067 clear_pending (EV_A_ (W)w); 4474 clear_pending (EV_A_ (W)w);
4068 if (expect_false (!ev_is_active (w))) 4475 if (expect_false (!ev_is_active (w)))
4069 return; 4476 return;
4070 4477
… …
4080} 4487}
4081#endif 4488#endif
4082 4489
4083#if EV_FORK_ENABLE 4490#if EV_FORK_ENABLE
4084void 4491void
4085ev_fork_start (EV_P_ ev_fork *w) 4492ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4086{ 4493{
4087 if (expect_false (ev_is_active (w))) 4494 if (expect_false (ev_is_active (w)))
4088 return; 4495 return;
4089 4496
4090 EV_FREQUENT_CHECK; 4497 EV_FREQUENT_CHECK;
… …
4095 4502
4096 EV_FREQUENT_CHECK; 4503 EV_FREQUENT_CHECK;
4097} 4504}
4098 4505
4099void 4506void
4100ev_fork_stop (EV_P_ ev_fork *w) 4507ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4101{ 4508{
4102 clear_pending (EV_A_ (W)w); 4509 clear_pending (EV_A_ (W)w);
4103 if (expect_false (!ev_is_active (w))) 4510 if (expect_false (!ev_is_active (w)))
4104 return; 4511 return;
4105 4512
… …
4118} 4525}
4119#endif 4526#endif
4120 4527
4121#if EV_CLEANUP_ENABLE 4528#if EV_CLEANUP_ENABLE
4122void 4529void
4123ev_cleanup_start (EV_P_ ev_cleanup *w) 4530ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4124{ 4531{
4125 if (expect_false (ev_is_active (w))) 4532 if (expect_false (ev_is_active (w)))
4126 return; 4533 return;
4127 4534
4128 EV_FREQUENT_CHECK; 4535 EV_FREQUENT_CHECK;
… …
4135 ev_unref (EV_A); 4542 ev_unref (EV_A);
4136 EV_FREQUENT_CHECK; 4543 EV_FREQUENT_CHECK;
4137} 4544}
4138 4545
4139void 4546void
4140ev_cleanup_stop (EV_P_ ev_cleanup *w) 4547ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4141{ 4548{
4142 clear_pending (EV_A_ (W)w); 4549 clear_pending (EV_A_ (W)w);
4143 if (expect_false (!ev_is_active (w))) 4550 if (expect_false (!ev_is_active (w)))
4144 return; 4551 return;
4145 4552
… …
4159} 4566}
4160#endif 4567#endif
4161 4568
4162#if EV_ASYNC_ENABLE 4569#if EV_ASYNC_ENABLE
4163void 4570void
4164ev_async_start (EV_P_ ev_async *w) 4571ev_async_start (EV_P_ ev_async *w) EV_THROW
4165{ 4572{
4166 if (expect_false (ev_is_active (w))) 4573 if (expect_false (ev_is_active (w)))
4167 return; 4574 return;
4168 4575
4169 w->sent = 0; 4576 w->sent = 0;
… …
4178 4585
4179 EV_FREQUENT_CHECK; 4586 EV_FREQUENT_CHECK;
4180} 4587}
4181 4588
4182void 4589void
4183ev_async_stop (EV_P_ ev_async *w) 4590ev_async_stop (EV_P_ ev_async *w) EV_THROW
4184{ 4591{
4185 clear_pending (EV_A_ (W)w); 4592 clear_pending (EV_A_ (W)w);
4186 if (expect_false (!ev_is_active (w))) 4593 if (expect_false (!ev_is_active (w)))
4187 return; 4594 return;
4188 4595
… …
4199 4606
4200 EV_FREQUENT_CHECK; 4607 EV_FREQUENT_CHECK;
4201} 4608}
4202 4609
4203void 4610void
4204ev_async_send (EV_P_ ev_async *w) 4611ev_async_send (EV_P_ ev_async *w) EV_THROW
4205{ 4612{
4206 w->sent = 1; 4613 w->sent = 1;
4207 evpipe_write (EV_A_ &async_pending); 4614 evpipe_write (EV_A_ &async_pending);
4208} 4615}
4209#endif 4616#endif
… …
4246 4653
4247 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4654 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4248} 4655}
4249 4656
4250void 4657void
4251ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4658ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4252{ 4659{
4253 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4660 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4254 4661
4255 if (expect_false (!once)) 4662 if (expect_false (!once))
4256 { 4663 {
… …
4278 4685
4279/*****************************************************************************/ 4686/*****************************************************************************/
4280 4687
4281#if EV_WALK_ENABLE 4688#if EV_WALK_ENABLE
4282void ecb_cold 4689void ecb_cold
4283ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4690ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4284{ 4691{
4285 int i, j; 4692 int i, j;
4286 ev_watcher_list *wl, *wn; 4693 ev_watcher_list *wl, *wn;
4287 4694
4288 if (types & (EV_IO | EV_EMBED)) 4695 if (types & (EV_IO | EV_EMBED))
… …
4394 4801
4395#if EV_MULTIPLICITY 4802#if EV_MULTIPLICITY
4396 #include "ev_wrap.h" 4803 #include "ev_wrap.h"
4397#endif 4804#endif
4398 4805
4399EV_CPP(})
4400

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