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Comparing libev/ev.c (file contents):
Revision 1.398 by root, Sun Sep 25 21:27:35 2011 UTC vs.
Revision 1.458 by root, Sun Oct 27 16:26:07 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#endif 605#endif
544 606
545#ifndef ECB_MEMORY_FENCE 607#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) 608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 609 #if __i386 || __i386__
548 #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")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
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 its 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")
642 #elif defined __m68k__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
644 #elif defined __m88k__
645 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
646 #elif defined __sh__
647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
563 #endif 648 #endif
564 #endif 649 #endif
565#endif 650#endif
566 651
567#ifndef ECB_MEMORY_FENCE 652#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
656
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model.
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */
665
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 667 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 668 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 670 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 673 #elif defined _WIN32
578 #include <WinNT.h> 674 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
681 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync ()
683 #endif
684#endif
685
686#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 698 #endif
581#endif 699#endif
582 700
583#ifndef ECB_MEMORY_FENCE 701#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 702 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 714 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 715 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 716 #endif
599#endif 717#endif
600 718
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 719#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 720 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 721#endif
604 722
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 725#endif
608 726
609/*****************************************************************************/ 727/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 728
613#if __cplusplus 729#if __cplusplus
614 #define ecb_inline static inline 730 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 731#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 732 #define ecb_inline static __inline__
… …
655#elif ECB_GCC_VERSION(3,0) 771#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 772 #define ecb_decltype(x) __typeof(x)
657#endif 773#endif
658 774
659#define ecb_noinline ecb_attribute ((__noinline__)) 775#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 776#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 777#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 778#define ecb_pure ecb_attribute ((__pure__))
779
780#if ECB_C11
781 #define ecb_noreturn _Noreturn
782#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif
664 785
665#if ECB_GCC_VERSION(4,3) 786#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 787 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 788 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 789 #define ecb_cold ecb_attribute ((__cold__))
… …
759 880
760 return r + ecb_ld32 (x); 881 return r + ecb_ld32 (x);
761 } 882 }
762#endif 883#endif
763 884
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
892{
893 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895}
896
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
899{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8);
904
905 return x;
906}
907
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
910{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
915 x = ( x >> 16 ) | ( x << 16);
916
917 return x;
918}
919
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 920/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 921/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 923ecb_function_ int
768ecb_popcount64 (uint64_t x) 924ecb_popcount64 (uint64_t x)
… …
817 973
818#if ECB_GCC_VERSION(4,5) 974#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 975 #define ecb_unreachable() __builtin_unreachable ()
820#else 976#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 977 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 978 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 979 ecb_inline void ecb_unreachable (void) { }
824#endif 980#endif
825 981
826/* try to tell the compiler that some condition is definitely true */ 982/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828 984
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 986ecb_inline unsigned char
831ecb_byteorder_helper (void) 987ecb_byteorder_helper (void)
832{ 988{
833 const uint32_t u = 0x11223344; 989 /* the union code still generates code under pressure in gcc, */
834 return *(unsigned char *)&u; 990 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
998 return 0x44;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1000 return 0x11;
1001#else
1002 union
1003 {
1004 uint32_t i;
1005 uint8_t c;
1006 } u = { 0x11223344 };
1007 return u.c;
1008#endif
835} 1009}
836 1010
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 1015
842#if ECB_GCC_VERSION(3,0) || ECB_C99 1016#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 1018#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
870 } 1044 }
871#else 1045#else
872 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
873#endif 1047#endif
874 1048
1049/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051
1052/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \
1055 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \
1061 || defined __alpha__ \
1062 || defined __hppa__ \
1063 || defined __ia64__ \
1064 || defined __m68k__ \
1065 || defined __m88k__ \
1066 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1068 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */
1070#else
1071 #define ECB_STDFP 0
1072#endif
1073
1074#ifndef ECB_NO_LIBM
1075
1076 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1077
1078 #ifdef NEN
1079 #define ECB_NAN NAN
1080 #else
1081 #define ECB_NAN INFINITY
1082 #endif
1083
1084 /* converts an ieee half/binary16 to a float */
1085 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1086 ecb_function_ float
1087 ecb_binary16_to_float (uint16_t x)
1088 {
1089 int e = (x >> 10) & 0x1f;
1090 int m = x & 0x3ff;
1091 float r;
1092
1093 if (!e ) r = ldexpf (m , -24);
1094 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1095 else if (m ) r = ECB_NAN;
1096 else r = INFINITY;
1097
1098 return x & 0x8000 ? -r : r;
1099 }
1100
1101 /* convert a float to ieee single/binary32 */
1102 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1103 ecb_function_ uint32_t
1104 ecb_float_to_binary32 (float x)
1105 {
1106 uint32_t r;
1107
1108 #if ECB_STDFP
1109 memcpy (&r, &x, 4);
1110 #else
1111 /* slow emulation, works for anything but -0 */
1112 uint32_t m;
1113 int e;
1114
1115 if (x == 0e0f ) return 0x00000000U;
1116 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1117 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1118 if (x != x ) return 0x7fbfffffU;
1119
1120 m = frexpf (x, &e) * 0x1000000U;
1121
1122 r = m & 0x80000000U;
1123
1124 if (r)
1125 m = -m;
1126
1127 if (e <= -126)
1128 {
1129 m &= 0xffffffU;
1130 m >>= (-125 - e);
1131 e = -126;
1132 }
1133
1134 r |= (e + 126) << 23;
1135 r |= m & 0x7fffffU;
1136 #endif
1137
1138 return r;
1139 }
1140
1141 /* converts an ieee single/binary32 to a float */
1142 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1143 ecb_function_ float
1144 ecb_binary32_to_float (uint32_t x)
1145 {
1146 float r;
1147
1148 #if ECB_STDFP
1149 memcpy (&r, &x, 4);
1150 #else
1151 /* emulation, only works for normals and subnormals and +0 */
1152 int neg = x >> 31;
1153 int e = (x >> 23) & 0xffU;
1154
1155 x &= 0x7fffffU;
1156
1157 if (e)
1158 x |= 0x800000U;
1159 else
1160 e = 1;
1161
1162 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1163 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1164
1165 r = neg ? -r : r;
1166 #endif
1167
1168 return r;
1169 }
1170
1171 /* convert a double to ieee double/binary64 */
1172 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1173 ecb_function_ uint64_t
1174 ecb_double_to_binary64 (double x)
1175 {
1176 uint64_t r;
1177
1178 #if ECB_STDFP
1179 memcpy (&r, &x, 8);
1180 #else
1181 /* slow emulation, works for anything but -0 */
1182 uint64_t m;
1183 int e;
1184
1185 if (x == 0e0 ) return 0x0000000000000000U;
1186 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1187 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1188 if (x != x ) return 0X7ff7ffffffffffffU;
1189
1190 m = frexp (x, &e) * 0x20000000000000U;
1191
1192 r = m & 0x8000000000000000;;
1193
1194 if (r)
1195 m = -m;
1196
1197 if (e <= -1022)
1198 {
1199 m &= 0x1fffffffffffffU;
1200 m >>= (-1021 - e);
1201 e = -1022;
1202 }
1203
1204 r |= ((uint64_t)(e + 1022)) << 52;
1205 r |= m & 0xfffffffffffffU;
1206 #endif
1207
1208 return r;
1209 }
1210
1211 /* converts an ieee double/binary64 to a double */
1212 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1213 ecb_function_ double
1214 ecb_binary64_to_double (uint64_t x)
1215 {
1216 double r;
1217
1218 #if ECB_STDFP
1219 memcpy (&r, &x, 8);
1220 #else
1221 /* emulation, only works for normals and subnormals and +0 */
1222 int neg = x >> 63;
1223 int e = (x >> 52) & 0x7ffU;
1224
1225 x &= 0xfffffffffffffU;
1226
1227 if (e)
1228 x |= 0x10000000000000U;
1229 else
1230 e = 1;
1231
1232 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1233 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1234
1235 r = neg ? -r : r;
1236 #endif
1237
1238 return r;
1239 }
1240
1241#endif
1242
875#endif 1243#endif
876 1244
877/* ECB.H END */ 1245/* ECB.H END */
878 1246
879#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1247#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
880/* if your architecture doesn't need memory fences, e.g. because it is 1248/* if your architecture doesn't need memory fences, e.g. because it is
881 * single-cpu/core, or if you use libev in a project that doesn't use libev 1249 * single-cpu/core, or if you use libev in a project that doesn't use libev
882 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1250 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
883 * libev, in which casess the memory fences become nops. 1251 * libev, in which cases the memory fences become nops.
884 * alternatively, you can remove this #error and link against libpthread, 1252 * alternatively, you can remove this #error and link against libpthread,
885 * which will then provide the memory fences. 1253 * which will then provide the memory fences.
886 */ 1254 */
887# error "memory fences not defined for your architecture, please report" 1255# error "memory fences not defined for your architecture, please report"
888#endif 1256#endif
… …
1045{ 1413{
1046 write (STDERR_FILENO, msg, strlen (msg)); 1414 write (STDERR_FILENO, msg, strlen (msg));
1047} 1415}
1048#endif 1416#endif
1049 1417
1050static void (*syserr_cb)(const char *msg); 1418static void (*syserr_cb)(const char *msg) EV_THROW;
1051 1419
1052void ecb_cold 1420void ecb_cold
1053ev_set_syserr_cb (void (*cb)(const char *msg)) 1421ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1054{ 1422{
1055 syserr_cb = cb; 1423 syserr_cb = cb;
1056} 1424}
1057 1425
1058static void noinline ecb_cold 1426static void noinline ecb_cold
… …
1076 abort (); 1444 abort ();
1077 } 1445 }
1078} 1446}
1079 1447
1080static void * 1448static void *
1081ev_realloc_emul (void *ptr, long size) 1449ev_realloc_emul (void *ptr, long size) EV_THROW
1082{ 1450{
1083#if __GLIBC__
1084 return realloc (ptr, size);
1085#else
1086 /* some systems, notably openbsd and darwin, fail to properly 1451 /* some systems, notably openbsd and darwin, fail to properly
1087 * implement realloc (x, 0) (as required by both ansi c-89 and 1452 * implement realloc (x, 0) (as required by both ansi c-89 and
1088 * the single unix specification, so work around them here. 1453 * the single unix specification, so work around them here.
1454 * recently, also (at least) fedora and debian started breaking it,
1455 * despite documenting it otherwise.
1089 */ 1456 */
1090 1457
1091 if (size) 1458 if (size)
1092 return realloc (ptr, size); 1459 return realloc (ptr, size);
1093 1460
1094 free (ptr); 1461 free (ptr);
1095 return 0; 1462 return 0;
1096#endif
1097} 1463}
1098 1464
1099static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1465static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1100 1466
1101void ecb_cold 1467void ecb_cold
1102ev_set_allocator (void *(*cb)(void *ptr, long size)) 1468ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1103{ 1469{
1104 alloc = cb; 1470 alloc = cb;
1105} 1471}
1106 1472
1107inline_speed void * 1473inline_speed void *
… …
1195 #undef VAR 1561 #undef VAR
1196 }; 1562 };
1197 #include "ev_wrap.h" 1563 #include "ev_wrap.h"
1198 1564
1199 static struct ev_loop default_loop_struct; 1565 static struct ev_loop default_loop_struct;
1200 struct ev_loop *ev_default_loop_ptr; 1566 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1201 1567
1202#else 1568#else
1203 1569
1204 ev_tstamp ev_rt_now; 1570 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1205 #define VAR(name,decl) static decl; 1571 #define VAR(name,decl) static decl;
1206 #include "ev_vars.h" 1572 #include "ev_vars.h"
1207 #undef VAR 1573 #undef VAR
1208 1574
1209 static int ev_default_loop_ptr; 1575 static int ev_default_loop_ptr;
… …
1224 1590
1225/*****************************************************************************/ 1591/*****************************************************************************/
1226 1592
1227#ifndef EV_HAVE_EV_TIME 1593#ifndef EV_HAVE_EV_TIME
1228ev_tstamp 1594ev_tstamp
1229ev_time (void) 1595ev_time (void) EV_THROW
1230{ 1596{
1231#if EV_USE_REALTIME 1597#if EV_USE_REALTIME
1232 if (expect_true (have_realtime)) 1598 if (expect_true (have_realtime))
1233 { 1599 {
1234 struct timespec ts; 1600 struct timespec ts;
… …
1258 return ev_time (); 1624 return ev_time ();
1259} 1625}
1260 1626
1261#if EV_MULTIPLICITY 1627#if EV_MULTIPLICITY
1262ev_tstamp 1628ev_tstamp
1263ev_now (EV_P) 1629ev_now (EV_P) EV_THROW
1264{ 1630{
1265 return ev_rt_now; 1631 return ev_rt_now;
1266} 1632}
1267#endif 1633#endif
1268 1634
1269void 1635void
1270ev_sleep (ev_tstamp delay) 1636ev_sleep (ev_tstamp delay) EV_THROW
1271{ 1637{
1272 if (delay > 0.) 1638 if (delay > 0.)
1273 { 1639 {
1274#if EV_USE_NANOSLEEP 1640#if EV_USE_NANOSLEEP
1275 struct timespec ts; 1641 struct timespec ts;
1276 1642
1277 EV_TS_SET (ts, delay); 1643 EV_TS_SET (ts, delay);
1278 nanosleep (&ts, 0); 1644 nanosleep (&ts, 0);
1279#elif defined(_WIN32) 1645#elif defined _WIN32
1280 Sleep ((unsigned long)(delay * 1e3)); 1646 Sleep ((unsigned long)(delay * 1e3));
1281#else 1647#else
1282 struct timeval tv; 1648 struct timeval tv;
1283 1649
1284 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1650 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1303 1669
1304 do 1670 do
1305 ncur <<= 1; 1671 ncur <<= 1;
1306 while (cnt > ncur); 1672 while (cnt > ncur);
1307 1673
1308 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1674 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1309 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1675 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1310 { 1676 {
1311 ncur *= elem; 1677 ncur *= elem;
1312 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1678 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1313 ncur = ncur - sizeof (void *) * 4; 1679 ncur = ncur - sizeof (void *) * 4;
… …
1356pendingcb (EV_P_ ev_prepare *w, int revents) 1722pendingcb (EV_P_ ev_prepare *w, int revents)
1357{ 1723{
1358} 1724}
1359 1725
1360void noinline 1726void noinline
1361ev_feed_event (EV_P_ void *w, int revents) 1727ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1362{ 1728{
1363 W w_ = (W)w; 1729 W w_ = (W)w;
1364 int pri = ABSPRI (w_); 1730 int pri = ABSPRI (w_);
1365 1731
1366 if (expect_false (w_->pending)) 1732 if (expect_false (w_->pending))
… …
1370 w_->pending = ++pendingcnt [pri]; 1736 w_->pending = ++pendingcnt [pri];
1371 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1372 pendings [pri][w_->pending - 1].w = w_; 1738 pendings [pri][w_->pending - 1].w = w_;
1373 pendings [pri][w_->pending - 1].events = revents; 1739 pendings [pri][w_->pending - 1].events = revents;
1374 } 1740 }
1741
1742 pendingpri = NUMPRI - 1;
1375} 1743}
1376 1744
1377inline_speed void 1745inline_speed void
1378feed_reverse (EV_P_ W w) 1746feed_reverse (EV_P_ W w)
1379{ 1747{
… …
1425 if (expect_true (!anfd->reify)) 1793 if (expect_true (!anfd->reify))
1426 fd_event_nocheck (EV_A_ fd, revents); 1794 fd_event_nocheck (EV_A_ fd, revents);
1427} 1795}
1428 1796
1429void 1797void
1430ev_feed_fd_event (EV_P_ int fd, int revents) 1798ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1431{ 1799{
1432 if (fd >= 0 && fd < anfdmax) 1800 if (fd >= 0 && fd < anfdmax)
1433 fd_event_nocheck (EV_A_ fd, revents); 1801 fd_event_nocheck (EV_A_ fd, revents);
1434} 1802}
1435 1803
… …
1754static void noinline ecb_cold 2122static void noinline ecb_cold
1755evpipe_init (EV_P) 2123evpipe_init (EV_P)
1756{ 2124{
1757 if (!ev_is_active (&pipe_w)) 2125 if (!ev_is_active (&pipe_w))
1758 { 2126 {
2127 int fds [2];
2128
1759# if EV_USE_EVENTFD 2129# if EV_USE_EVENTFD
2130 fds [0] = -1;
1760 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2131 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1761 if (evfd < 0 && errno == EINVAL) 2132 if (fds [1] < 0 && errno == EINVAL)
1762 evfd = eventfd (0, 0); 2133 fds [1] = eventfd (0, 0);
1763 2134
1764 if (evfd >= 0) 2135 if (fds [1] < 0)
2136# endif
1765 { 2137 {
2138 while (pipe (fds))
2139 ev_syserr ("(libev) error creating signal/async pipe");
2140
2141 fd_intern (fds [0]);
2142 }
2143
1766 evpipe [0] = -1; 2144 evpipe [0] = fds [0];
1767 fd_intern (evfd); /* doing it twice doesn't hurt */ 2145
1768 ev_io_set (&pipe_w, evfd, EV_READ); 2146 if (evpipe [1] < 0)
2147 evpipe [1] = fds [1]; /* first call, set write fd */
2148 else
2149 {
2150 /* on subsequent calls, do not change evpipe [1] */
2151 /* so that evpipe_write can always rely on its value. */
2152 /* this branch does not do anything sensible on windows, */
2153 /* so must not be executed on windows */
2154
2155 dup2 (fds [1], evpipe [1]);
2156 close (fds [1]);
2157 }
2158
2159 fd_intern (evpipe [1]);
2160
2161 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2162 ev_io_start (EV_A_ &pipe_w);
2163 ev_unref (EV_A); /* watcher should not keep loop alive */
2164 }
2165}
2166
2167inline_speed void
2168evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2169{
2170 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2171
2172 if (expect_true (*flag))
2173 return;
2174
2175 *flag = 1;
2176 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2177
2178 pipe_write_skipped = 1;
2179
2180 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2181
2182 if (pipe_write_wanted)
2183 {
2184 int old_errno;
2185
2186 pipe_write_skipped = 0;
2187 ECB_MEMORY_FENCE_RELEASE;
2188
2189 old_errno = errno; /* save errno because write will clobber it */
2190
2191#if EV_USE_EVENTFD
2192 if (evpipe [0] < 0)
2193 {
2194 uint64_t counter = 1;
2195 write (evpipe [1], &counter, sizeof (uint64_t));
1769 } 2196 }
1770 else 2197 else
1771# endif 2198#endif
1772 { 2199 {
1773 while (pipe (evpipe)) 2200#ifdef _WIN32
1774 ev_syserr ("(libev) error creating signal/async pipe"); 2201 WSABUF buf;
1775 2202 DWORD sent;
1776 fd_intern (evpipe [0]); 2203 buf.buf = &buf;
1777 fd_intern (evpipe [1]); 2204 buf.len = 1;
1778 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2205 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1779 } 2206#else
1780
1781 ev_io_start (EV_A_ &pipe_w);
1782 ev_unref (EV_A); /* watcher should not keep loop alive */
1783 }
1784}
1785
1786inline_speed void
1787evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1788{
1789 if (expect_true (*flag))
1790 return;
1791
1792 *flag = 1;
1793
1794 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1795
1796 pipe_write_skipped = 1;
1797
1798 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1799
1800 if (pipe_write_wanted)
1801 {
1802 int old_errno;
1803
1804 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1805
1806 old_errno = errno; /* save errno because write will clobber it */
1807
1808#if EV_USE_EVENTFD
1809 if (evfd >= 0)
1810 {
1811 uint64_t counter = 1;
1812 write (evfd, &counter, sizeof (uint64_t));
1813 }
1814 else
1815#endif
1816 {
1817 /* win32 people keep sending patches that change this write() to send() */
1818 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1819 /* so when you think this write should be a send instead, please find out */
1820 /* where your send() is from - it's definitely not the microsoft send, and */
1821 /* tell me. thank you. */
1822 write (evpipe [1], &(evpipe [1]), 1); 2207 write (evpipe [1], &(evpipe [1]), 1);
2208#endif
1823 } 2209 }
1824 2210
1825 errno = old_errno; 2211 errno = old_errno;
1826 } 2212 }
1827} 2213}
… …
1834 int i; 2220 int i;
1835 2221
1836 if (revents & EV_READ) 2222 if (revents & EV_READ)
1837 { 2223 {
1838#if EV_USE_EVENTFD 2224#if EV_USE_EVENTFD
1839 if (evfd >= 0) 2225 if (evpipe [0] < 0)
1840 { 2226 {
1841 uint64_t counter; 2227 uint64_t counter;
1842 read (evfd, &counter, sizeof (uint64_t)); 2228 read (evpipe [1], &counter, sizeof (uint64_t));
1843 } 2229 }
1844 else 2230 else
1845#endif 2231#endif
1846 { 2232 {
1847 char dummy; 2233 char dummy[4];
1848 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2234#ifdef _WIN32
2235 WSABUF buf;
2236 DWORD recvd;
2237 DWORD flags = 0;
2238 buf.buf = dummy;
2239 buf.len = sizeof (dummy);
2240 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2241#else
1849 read (evpipe [0], &dummy, 1); 2242 read (evpipe [0], &dummy, sizeof (dummy));
2243#endif
1850 } 2244 }
1851 } 2245 }
1852 2246
1853 pipe_write_skipped = 0; 2247 pipe_write_skipped = 0;
2248
2249 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1854 2250
1855#if EV_SIGNAL_ENABLE 2251#if EV_SIGNAL_ENABLE
1856 if (sig_pending) 2252 if (sig_pending)
1857 { 2253 {
1858 sig_pending = 0; 2254 sig_pending = 0;
2255
2256 ECB_MEMORY_FENCE;
1859 2257
1860 for (i = EV_NSIG - 1; i--; ) 2258 for (i = EV_NSIG - 1; i--; )
1861 if (expect_false (signals [i].pending)) 2259 if (expect_false (signals [i].pending))
1862 ev_feed_signal_event (EV_A_ i + 1); 2260 ev_feed_signal_event (EV_A_ i + 1);
1863 } 2261 }
… …
1865 2263
1866#if EV_ASYNC_ENABLE 2264#if EV_ASYNC_ENABLE
1867 if (async_pending) 2265 if (async_pending)
1868 { 2266 {
1869 async_pending = 0; 2267 async_pending = 0;
2268
2269 ECB_MEMORY_FENCE;
1870 2270
1871 for (i = asynccnt; i--; ) 2271 for (i = asynccnt; i--; )
1872 if (asyncs [i]->sent) 2272 if (asyncs [i]->sent)
1873 { 2273 {
1874 asyncs [i]->sent = 0; 2274 asyncs [i]->sent = 0;
2275 ECB_MEMORY_FENCE_RELEASE;
1875 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2276 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1876 } 2277 }
1877 } 2278 }
1878#endif 2279#endif
1879} 2280}
1880 2281
1881/*****************************************************************************/ 2282/*****************************************************************************/
1882 2283
1883void 2284void
1884ev_feed_signal (int signum) 2285ev_feed_signal (int signum) EV_THROW
1885{ 2286{
1886#if EV_MULTIPLICITY 2287#if EV_MULTIPLICITY
2288 EV_P;
2289 ECB_MEMORY_FENCE_ACQUIRE;
1887 EV_P = signals [signum - 1].loop; 2290 EV_A = signals [signum - 1].loop;
1888 2291
1889 if (!EV_A) 2292 if (!EV_A)
1890 return; 2293 return;
1891#endif 2294#endif
1892 2295
1893 if (!ev_active (&pipe_w))
1894 return;
1895
1896 signals [signum - 1].pending = 1; 2296 signals [signum - 1].pending = 1;
1897 evpipe_write (EV_A_ &sig_pending); 2297 evpipe_write (EV_A_ &sig_pending);
1898} 2298}
1899 2299
1900static void 2300static void
… …
1906 2306
1907 ev_feed_signal (signum); 2307 ev_feed_signal (signum);
1908} 2308}
1909 2309
1910void noinline 2310void noinline
1911ev_feed_signal_event (EV_P_ int signum) 2311ev_feed_signal_event (EV_P_ int signum) EV_THROW
1912{ 2312{
1913 WL w; 2313 WL w;
1914 2314
1915 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2315 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1916 return; 2316 return;
1917 2317
1918 --signum; 2318 --signum;
1919 2319
1920#if EV_MULTIPLICITY 2320#if EV_MULTIPLICITY
… …
1924 if (expect_false (signals [signum].loop != EV_A)) 2324 if (expect_false (signals [signum].loop != EV_A))
1925 return; 2325 return;
1926#endif 2326#endif
1927 2327
1928 signals [signum].pending = 0; 2328 signals [signum].pending = 0;
2329 ECB_MEMORY_FENCE_RELEASE;
1929 2330
1930 for (w = signals [signum].head; w; w = w->next) 2331 for (w = signals [signum].head; w; w = w->next)
1931 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2332 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1932} 2333}
1933 2334
… …
2032#if EV_USE_SELECT 2433#if EV_USE_SELECT
2033# include "ev_select.c" 2434# include "ev_select.c"
2034#endif 2435#endif
2035 2436
2036int ecb_cold 2437int ecb_cold
2037ev_version_major (void) 2438ev_version_major (void) EV_THROW
2038{ 2439{
2039 return EV_VERSION_MAJOR; 2440 return EV_VERSION_MAJOR;
2040} 2441}
2041 2442
2042int ecb_cold 2443int ecb_cold
2043ev_version_minor (void) 2444ev_version_minor (void) EV_THROW
2044{ 2445{
2045 return EV_VERSION_MINOR; 2446 return EV_VERSION_MINOR;
2046} 2447}
2047 2448
2048/* return true if we are running with elevated privileges and should ignore env variables */ 2449/* return true if we are running with elevated privileges and should ignore env variables */
… …
2056 || getgid () != getegid (); 2457 || getgid () != getegid ();
2057#endif 2458#endif
2058} 2459}
2059 2460
2060unsigned int ecb_cold 2461unsigned int ecb_cold
2061ev_supported_backends (void) 2462ev_supported_backends (void) EV_THROW
2062{ 2463{
2063 unsigned int flags = 0; 2464 unsigned int flags = 0;
2064 2465
2065 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2466 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2066 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2467 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2070 2471
2071 return flags; 2472 return flags;
2072} 2473}
2073 2474
2074unsigned int ecb_cold 2475unsigned int ecb_cold
2075ev_recommended_backends (void) 2476ev_recommended_backends (void) EV_THROW
2076{ 2477{
2077 unsigned int flags = ev_supported_backends (); 2478 unsigned int flags = ev_supported_backends ();
2078 2479
2079#ifndef __NetBSD__ 2480#ifndef __NetBSD__
2080 /* kqueue is borked on everything but netbsd apparently */ 2481 /* kqueue is borked on everything but netbsd apparently */
… …
2092 2493
2093 return flags; 2494 return flags;
2094} 2495}
2095 2496
2096unsigned int ecb_cold 2497unsigned int ecb_cold
2097ev_embeddable_backends (void) 2498ev_embeddable_backends (void) EV_THROW
2098{ 2499{
2099 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2500 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2100 2501
2101 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2502 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2102 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2503 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2104 2505
2105 return flags; 2506 return flags;
2106} 2507}
2107 2508
2108unsigned int 2509unsigned int
2109ev_backend (EV_P) 2510ev_backend (EV_P) EV_THROW
2110{ 2511{
2111 return backend; 2512 return backend;
2112} 2513}
2113 2514
2114#if EV_FEATURE_API 2515#if EV_FEATURE_API
2115unsigned int 2516unsigned int
2116ev_iteration (EV_P) 2517ev_iteration (EV_P) EV_THROW
2117{ 2518{
2118 return loop_count; 2519 return loop_count;
2119} 2520}
2120 2521
2121unsigned int 2522unsigned int
2122ev_depth (EV_P) 2523ev_depth (EV_P) EV_THROW
2123{ 2524{
2124 return loop_depth; 2525 return loop_depth;
2125} 2526}
2126 2527
2127void 2528void
2128ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2529ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2129{ 2530{
2130 io_blocktime = interval; 2531 io_blocktime = interval;
2131} 2532}
2132 2533
2133void 2534void
2134ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2535ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2135{ 2536{
2136 timeout_blocktime = interval; 2537 timeout_blocktime = interval;
2137} 2538}
2138 2539
2139void 2540void
2140ev_set_userdata (EV_P_ void *data) 2541ev_set_userdata (EV_P_ void *data) EV_THROW
2141{ 2542{
2142 userdata = data; 2543 userdata = data;
2143} 2544}
2144 2545
2145void * 2546void *
2146ev_userdata (EV_P) 2547ev_userdata (EV_P) EV_THROW
2147{ 2548{
2148 return userdata; 2549 return userdata;
2149} 2550}
2150 2551
2151void 2552void
2152ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2553ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2153{ 2554{
2154 invoke_cb = invoke_pending_cb; 2555 invoke_cb = invoke_pending_cb;
2155} 2556}
2156 2557
2157void 2558void
2158ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2559ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2159{ 2560{
2160 release_cb = release; 2561 release_cb = release;
2161 acquire_cb = acquire; 2562 acquire_cb = acquire;
2162} 2563}
2163#endif 2564#endif
2164 2565
2165/* initialise a loop structure, must be zero-initialised */ 2566/* initialise a loop structure, must be zero-initialised */
2166static void noinline ecb_cold 2567static void noinline ecb_cold
2167loop_init (EV_P_ unsigned int flags) 2568loop_init (EV_P_ unsigned int flags) EV_THROW
2168{ 2569{
2169 if (!backend) 2570 if (!backend)
2170 { 2571 {
2171 origflags = flags; 2572 origflags = flags;
2172 2573
… …
2217#if EV_ASYNC_ENABLE 2618#if EV_ASYNC_ENABLE
2218 async_pending = 0; 2619 async_pending = 0;
2219#endif 2620#endif
2220 pipe_write_skipped = 0; 2621 pipe_write_skipped = 0;
2221 pipe_write_wanted = 0; 2622 pipe_write_wanted = 0;
2623 evpipe [0] = -1;
2624 evpipe [1] = -1;
2222#if EV_USE_INOTIFY 2625#if EV_USE_INOTIFY
2223 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2626 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2224#endif 2627#endif
2225#if EV_USE_SIGNALFD 2628#if EV_USE_SIGNALFD
2226 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2629 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2277 EV_INVOKE_PENDING; 2680 EV_INVOKE_PENDING;
2278 } 2681 }
2279#endif 2682#endif
2280 2683
2281#if EV_CHILD_ENABLE 2684#if EV_CHILD_ENABLE
2282 if (ev_is_active (&childev)) 2685 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2283 { 2686 {
2284 ev_ref (EV_A); /* child watcher */ 2687 ev_ref (EV_A); /* child watcher */
2285 ev_signal_stop (EV_A_ &childev); 2688 ev_signal_stop (EV_A_ &childev);
2286 } 2689 }
2287#endif 2690#endif
… …
2289 if (ev_is_active (&pipe_w)) 2692 if (ev_is_active (&pipe_w))
2290 { 2693 {
2291 /*ev_ref (EV_A);*/ 2694 /*ev_ref (EV_A);*/
2292 /*ev_io_stop (EV_A_ &pipe_w);*/ 2695 /*ev_io_stop (EV_A_ &pipe_w);*/
2293 2696
2294#if EV_USE_EVENTFD
2295 if (evfd >= 0)
2296 close (evfd);
2297#endif
2298
2299 if (evpipe [0] >= 0)
2300 {
2301 EV_WIN32_CLOSE_FD (evpipe [0]); 2697 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2302 EV_WIN32_CLOSE_FD (evpipe [1]); 2698 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2303 }
2304 } 2699 }
2305 2700
2306#if EV_USE_SIGNALFD 2701#if EV_USE_SIGNALFD
2307 if (ev_is_active (&sigfd_w)) 2702 if (ev_is_active (&sigfd_w))
2308 close (sigfd); 2703 close (sigfd);
… …
2394#endif 2789#endif
2395#if EV_USE_INOTIFY 2790#if EV_USE_INOTIFY
2396 infy_fork (EV_A); 2791 infy_fork (EV_A);
2397#endif 2792#endif
2398 2793
2794#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2399 if (ev_is_active (&pipe_w)) 2795 if (ev_is_active (&pipe_w))
2400 { 2796 {
2401 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2797 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2402 2798
2403 ev_ref (EV_A); 2799 ev_ref (EV_A);
2404 ev_io_stop (EV_A_ &pipe_w); 2800 ev_io_stop (EV_A_ &pipe_w);
2405 2801
2406#if EV_USE_EVENTFD
2407 if (evfd >= 0)
2408 close (evfd);
2409#endif
2410
2411 if (evpipe [0] >= 0) 2802 if (evpipe [0] >= 0)
2412 {
2413 EV_WIN32_CLOSE_FD (evpipe [0]); 2803 EV_WIN32_CLOSE_FD (evpipe [0]);
2414 EV_WIN32_CLOSE_FD (evpipe [1]);
2415 }
2416 2804
2417#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2418 evpipe_init (EV_A); 2805 evpipe_init (EV_A);
2419 /* now iterate over everything, in case we missed something */ 2806 /* iterate over everything, in case we missed something before */
2420 pipecb (EV_A_ &pipe_w, EV_READ); 2807 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2421#endif
2422 } 2808 }
2809#endif
2423 2810
2424 postfork = 0; 2811 postfork = 0;
2425} 2812}
2426 2813
2427#if EV_MULTIPLICITY 2814#if EV_MULTIPLICITY
2428 2815
2429struct ev_loop * ecb_cold 2816struct ev_loop * ecb_cold
2430ev_loop_new (unsigned int flags) 2817ev_loop_new (unsigned int flags) EV_THROW
2431{ 2818{
2432 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2819 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2433 2820
2434 memset (EV_A, 0, sizeof (struct ev_loop)); 2821 memset (EV_A, 0, sizeof (struct ev_loop));
2435 loop_init (EV_A_ flags); 2822 loop_init (EV_A_ flags);
… …
2479} 2866}
2480#endif 2867#endif
2481 2868
2482#if EV_FEATURE_API 2869#if EV_FEATURE_API
2483void ecb_cold 2870void ecb_cold
2484ev_verify (EV_P) 2871ev_verify (EV_P) EV_THROW
2485{ 2872{
2486#if EV_VERIFY 2873#if EV_VERIFY
2487 int i; 2874 int i;
2488 WL w; 2875 WL w, w2;
2489 2876
2490 assert (activecnt >= -1); 2877 assert (activecnt >= -1);
2491 2878
2492 assert (fdchangemax >= fdchangecnt); 2879 assert (fdchangemax >= fdchangecnt);
2493 for (i = 0; i < fdchangecnt; ++i) 2880 for (i = 0; i < fdchangecnt; ++i)
2494 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2881 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2495 2882
2496 assert (anfdmax >= 0); 2883 assert (anfdmax >= 0);
2497 for (i = 0; i < anfdmax; ++i) 2884 for (i = 0; i < anfdmax; ++i)
2885 {
2886 int j = 0;
2887
2498 for (w = anfds [i].head; w; w = w->next) 2888 for (w = w2 = anfds [i].head; w; w = w->next)
2499 { 2889 {
2500 verify_watcher (EV_A_ (W)w); 2890 verify_watcher (EV_A_ (W)w);
2891
2892 if (j++ & 1)
2893 {
2894 assert (("libev: io watcher list contains a loop", w != w2));
2895 w2 = w2->next;
2896 }
2897
2501 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2898 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2502 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2899 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2503 } 2900 }
2901 }
2504 2902
2505 assert (timermax >= timercnt); 2903 assert (timermax >= timercnt);
2506 verify_heap (EV_A_ timers, timercnt); 2904 verify_heap (EV_A_ timers, timercnt);
2507 2905
2508#if EV_PERIODIC_ENABLE 2906#if EV_PERIODIC_ENABLE
… …
2558#if EV_MULTIPLICITY 2956#if EV_MULTIPLICITY
2559struct ev_loop * ecb_cold 2957struct ev_loop * ecb_cold
2560#else 2958#else
2561int 2959int
2562#endif 2960#endif
2563ev_default_loop (unsigned int flags) 2961ev_default_loop (unsigned int flags) EV_THROW
2564{ 2962{
2565 if (!ev_default_loop_ptr) 2963 if (!ev_default_loop_ptr)
2566 { 2964 {
2567#if EV_MULTIPLICITY 2965#if EV_MULTIPLICITY
2568 EV_P = ev_default_loop_ptr = &default_loop_struct; 2966 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2587 2985
2588 return ev_default_loop_ptr; 2986 return ev_default_loop_ptr;
2589} 2987}
2590 2988
2591void 2989void
2592ev_loop_fork (EV_P) 2990ev_loop_fork (EV_P) EV_THROW
2593{ 2991{
2594 postfork = 1; /* must be in line with ev_default_fork */ 2992 postfork = 1;
2595} 2993}
2596 2994
2597/*****************************************************************************/ 2995/*****************************************************************************/
2598 2996
2599void 2997void
… …
2601{ 2999{
2602 EV_CB_INVOKE ((W)w, revents); 3000 EV_CB_INVOKE ((W)w, revents);
2603} 3001}
2604 3002
2605unsigned int 3003unsigned int
2606ev_pending_count (EV_P) 3004ev_pending_count (EV_P) EV_THROW
2607{ 3005{
2608 int pri; 3006 int pri;
2609 unsigned int count = 0; 3007 unsigned int count = 0;
2610 3008
2611 for (pri = NUMPRI; pri--; ) 3009 for (pri = NUMPRI; pri--; )
… …
2615} 3013}
2616 3014
2617void noinline 3015void noinline
2618ev_invoke_pending (EV_P) 3016ev_invoke_pending (EV_P)
2619{ 3017{
2620 int pri; 3018 pendingpri = NUMPRI;
2621 3019
2622 for (pri = NUMPRI; pri--; ) 3020 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3021 {
3022 --pendingpri;
3023
2623 while (pendingcnt [pri]) 3024 while (pendingcnt [pendingpri])
2624 { 3025 {
2625 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3026 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2626 3027
2627 p->w->pending = 0; 3028 p->w->pending = 0;
2628 EV_CB_INVOKE (p->w, p->events); 3029 EV_CB_INVOKE (p->w, p->events);
2629 EV_FREQUENT_CHECK; 3030 EV_FREQUENT_CHECK;
2630 } 3031 }
3032 }
2631} 3033}
2632 3034
2633#if EV_IDLE_ENABLE 3035#if EV_IDLE_ENABLE
2634/* make idle watchers pending. this handles the "call-idle */ 3036/* make idle watchers pending. this handles the "call-idle */
2635/* only when higher priorities are idle" logic */ 3037/* only when higher priorities are idle" logic */
… …
2725{ 3127{
2726 EV_FREQUENT_CHECK; 3128 EV_FREQUENT_CHECK;
2727 3129
2728 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3130 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2729 { 3131 {
2730 int feed_count = 0;
2731
2732 do 3132 do
2733 { 3133 {
2734 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3134 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2735 3135
2736 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3136 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2870 3270
2871 mn_now = ev_rt_now; 3271 mn_now = ev_rt_now;
2872 } 3272 }
2873} 3273}
2874 3274
2875void 3275int
2876ev_run (EV_P_ int flags) 3276ev_run (EV_P_ int flags)
2877{ 3277{
2878#if EV_FEATURE_API 3278#if EV_FEATURE_API
2879 ++loop_depth; 3279 ++loop_depth;
2880#endif 3280#endif
… …
2993#endif 3393#endif
2994 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3394 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2995 backend_poll (EV_A_ waittime); 3395 backend_poll (EV_A_ waittime);
2996 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3396 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2997 3397
2998 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3398 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2999 3399
3400 ECB_MEMORY_FENCE_ACQUIRE;
3000 if (pipe_write_skipped) 3401 if (pipe_write_skipped)
3001 { 3402 {
3002 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3403 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3003 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3404 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3004 } 3405 }
… …
3037 loop_done = EVBREAK_CANCEL; 3438 loop_done = EVBREAK_CANCEL;
3038 3439
3039#if EV_FEATURE_API 3440#if EV_FEATURE_API
3040 --loop_depth; 3441 --loop_depth;
3041#endif 3442#endif
3443
3444 return activecnt;
3042} 3445}
3043 3446
3044void 3447void
3045ev_break (EV_P_ int how) 3448ev_break (EV_P_ int how) EV_THROW
3046{ 3449{
3047 loop_done = how; 3450 loop_done = how;
3048} 3451}
3049 3452
3050void 3453void
3051ev_ref (EV_P) 3454ev_ref (EV_P) EV_THROW
3052{ 3455{
3053 ++activecnt; 3456 ++activecnt;
3054} 3457}
3055 3458
3056void 3459void
3057ev_unref (EV_P) 3460ev_unref (EV_P) EV_THROW
3058{ 3461{
3059 --activecnt; 3462 --activecnt;
3060} 3463}
3061 3464
3062void 3465void
3063ev_now_update (EV_P) 3466ev_now_update (EV_P) EV_THROW
3064{ 3467{
3065 time_update (EV_A_ 1e100); 3468 time_update (EV_A_ 1e100);
3066} 3469}
3067 3470
3068void 3471void
3069ev_suspend (EV_P) 3472ev_suspend (EV_P) EV_THROW
3070{ 3473{
3071 ev_now_update (EV_A); 3474 ev_now_update (EV_A);
3072} 3475}
3073 3476
3074void 3477void
3075ev_resume (EV_P) 3478ev_resume (EV_P) EV_THROW
3076{ 3479{
3077 ev_tstamp mn_prev = mn_now; 3480 ev_tstamp mn_prev = mn_now;
3078 3481
3079 ev_now_update (EV_A); 3482 ev_now_update (EV_A);
3080 timers_reschedule (EV_A_ mn_now - mn_prev); 3483 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3119 w->pending = 0; 3522 w->pending = 0;
3120 } 3523 }
3121} 3524}
3122 3525
3123int 3526int
3124ev_clear_pending (EV_P_ void *w) 3527ev_clear_pending (EV_P_ void *w) EV_THROW
3125{ 3528{
3126 W w_ = (W)w; 3529 W w_ = (W)w;
3127 int pending = w_->pending; 3530 int pending = w_->pending;
3128 3531
3129 if (expect_true (pending)) 3532 if (expect_true (pending))
… …
3162} 3565}
3163 3566
3164/*****************************************************************************/ 3567/*****************************************************************************/
3165 3568
3166void noinline 3569void noinline
3167ev_io_start (EV_P_ ev_io *w) 3570ev_io_start (EV_P_ ev_io *w) EV_THROW
3168{ 3571{
3169 int fd = w->fd; 3572 int fd = w->fd;
3170 3573
3171 if (expect_false (ev_is_active (w))) 3574 if (expect_false (ev_is_active (w)))
3172 return; 3575 return;
… …
3178 3581
3179 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
3180 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3583 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3181 wlist_add (&anfds[fd].head, (WL)w); 3584 wlist_add (&anfds[fd].head, (WL)w);
3182 3585
3586 /* common bug, apparently */
3587 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3588
3183 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3589 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3184 w->events &= ~EV__IOFDSET; 3590 w->events &= ~EV__IOFDSET;
3185 3591
3186 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3187} 3593}
3188 3594
3189void noinline 3595void noinline
3190ev_io_stop (EV_P_ ev_io *w) 3596ev_io_stop (EV_P_ ev_io *w) EV_THROW
3191{ 3597{
3192 clear_pending (EV_A_ (W)w); 3598 clear_pending (EV_A_ (W)w);
3193 if (expect_false (!ev_is_active (w))) 3599 if (expect_false (!ev_is_active (w)))
3194 return; 3600 return;
3195 3601
… …
3204 3610
3205 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
3206} 3612}
3207 3613
3208void noinline 3614void noinline
3209ev_timer_start (EV_P_ ev_timer *w) 3615ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3210{ 3616{
3211 if (expect_false (ev_is_active (w))) 3617 if (expect_false (ev_is_active (w)))
3212 return; 3618 return;
3213 3619
3214 ev_at (w) += mn_now; 3620 ev_at (w) += mn_now;
… …
3228 3634
3229 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3635 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3230} 3636}
3231 3637
3232void noinline 3638void noinline
3233ev_timer_stop (EV_P_ ev_timer *w) 3639ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3234{ 3640{
3235 clear_pending (EV_A_ (W)w); 3641 clear_pending (EV_A_ (W)w);
3236 if (expect_false (!ev_is_active (w))) 3642 if (expect_false (!ev_is_active (w)))
3237 return; 3643 return;
3238 3644
… …
3258 3664
3259 EV_FREQUENT_CHECK; 3665 EV_FREQUENT_CHECK;
3260} 3666}
3261 3667
3262void noinline 3668void noinline
3263ev_timer_again (EV_P_ ev_timer *w) 3669ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3264{ 3670{
3265 EV_FREQUENT_CHECK; 3671 EV_FREQUENT_CHECK;
3672
3673 clear_pending (EV_A_ (W)w);
3266 3674
3267 if (ev_is_active (w)) 3675 if (ev_is_active (w))
3268 { 3676 {
3269 if (w->repeat) 3677 if (w->repeat)
3270 { 3678 {
… …
3283 3691
3284 EV_FREQUENT_CHECK; 3692 EV_FREQUENT_CHECK;
3285} 3693}
3286 3694
3287ev_tstamp 3695ev_tstamp
3288ev_timer_remaining (EV_P_ ev_timer *w) 3696ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3289{ 3697{
3290 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3698 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3291} 3699}
3292 3700
3293#if EV_PERIODIC_ENABLE 3701#if EV_PERIODIC_ENABLE
3294void noinline 3702void noinline
3295ev_periodic_start (EV_P_ ev_periodic *w) 3703ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3296{ 3704{
3297 if (expect_false (ev_is_active (w))) 3705 if (expect_false (ev_is_active (w)))
3298 return; 3706 return;
3299 3707
3300 if (w->reschedule_cb) 3708 if (w->reschedule_cb)
… …
3320 3728
3321 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3729 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3322} 3730}
3323 3731
3324void noinline 3732void noinline
3325ev_periodic_stop (EV_P_ ev_periodic *w) 3733ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3326{ 3734{
3327 clear_pending (EV_A_ (W)w); 3735 clear_pending (EV_A_ (W)w);
3328 if (expect_false (!ev_is_active (w))) 3736 if (expect_false (!ev_is_active (w)))
3329 return; 3737 return;
3330 3738
… …
3348 3756
3349 EV_FREQUENT_CHECK; 3757 EV_FREQUENT_CHECK;
3350} 3758}
3351 3759
3352void noinline 3760void noinline
3353ev_periodic_again (EV_P_ ev_periodic *w) 3761ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3354{ 3762{
3355 /* TODO: use adjustheap and recalculation */ 3763 /* TODO: use adjustheap and recalculation */
3356 ev_periodic_stop (EV_A_ w); 3764 ev_periodic_stop (EV_A_ w);
3357 ev_periodic_start (EV_A_ w); 3765 ev_periodic_start (EV_A_ w);
3358} 3766}
… …
3363#endif 3771#endif
3364 3772
3365#if EV_SIGNAL_ENABLE 3773#if EV_SIGNAL_ENABLE
3366 3774
3367void noinline 3775void noinline
3368ev_signal_start (EV_P_ ev_signal *w) 3776ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3369{ 3777{
3370 if (expect_false (ev_is_active (w))) 3778 if (expect_false (ev_is_active (w)))
3371 return; 3779 return;
3372 3780
3373 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3781 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3375#if EV_MULTIPLICITY 3783#if EV_MULTIPLICITY
3376 assert (("libev: a signal must not be attached to two different loops", 3784 assert (("libev: a signal must not be attached to two different loops",
3377 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3785 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3378 3786
3379 signals [w->signum - 1].loop = EV_A; 3787 signals [w->signum - 1].loop = EV_A;
3788 ECB_MEMORY_FENCE_RELEASE;
3380#endif 3789#endif
3381 3790
3382 EV_FREQUENT_CHECK; 3791 EV_FREQUENT_CHECK;
3383 3792
3384#if EV_USE_SIGNALFD 3793#if EV_USE_SIGNALFD
… …
3444 3853
3445 EV_FREQUENT_CHECK; 3854 EV_FREQUENT_CHECK;
3446} 3855}
3447 3856
3448void noinline 3857void noinline
3449ev_signal_stop (EV_P_ ev_signal *w) 3858ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3450{ 3859{
3451 clear_pending (EV_A_ (W)w); 3860 clear_pending (EV_A_ (W)w);
3452 if (expect_false (!ev_is_active (w))) 3861 if (expect_false (!ev_is_active (w)))
3453 return; 3862 return;
3454 3863
… …
3485#endif 3894#endif
3486 3895
3487#if EV_CHILD_ENABLE 3896#if EV_CHILD_ENABLE
3488 3897
3489void 3898void
3490ev_child_start (EV_P_ ev_child *w) 3899ev_child_start (EV_P_ ev_child *w) EV_THROW
3491{ 3900{
3492#if EV_MULTIPLICITY 3901#if EV_MULTIPLICITY
3493 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3902 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3494#endif 3903#endif
3495 if (expect_false (ev_is_active (w))) 3904 if (expect_false (ev_is_active (w)))
… …
3502 3911
3503 EV_FREQUENT_CHECK; 3912 EV_FREQUENT_CHECK;
3504} 3913}
3505 3914
3506void 3915void
3507ev_child_stop (EV_P_ ev_child *w) 3916ev_child_stop (EV_P_ ev_child *w) EV_THROW
3508{ 3917{
3509 clear_pending (EV_A_ (W)w); 3918 clear_pending (EV_A_ (W)w);
3510 if (expect_false (!ev_is_active (w))) 3919 if (expect_false (!ev_is_active (w)))
3511 return; 3920 return;
3512 3921
… …
3539# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3948# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3540 3949
3541static void noinline 3950static void noinline
3542infy_add (EV_P_ ev_stat *w) 3951infy_add (EV_P_ ev_stat *w)
3543{ 3952{
3544 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); 3953 w->wd = inotify_add_watch (fs_fd, w->path,
3954 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3955 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3956 | IN_DONT_FOLLOW | IN_MASK_ADD);
3545 3957
3546 if (w->wd >= 0) 3958 if (w->wd >= 0)
3547 { 3959 {
3548 struct statfs sfs; 3960 struct statfs sfs;
3549 3961
… …
3553 3965
3554 if (!fs_2625) 3966 if (!fs_2625)
3555 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3967 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3556 else if (!statfs (w->path, &sfs) 3968 else if (!statfs (w->path, &sfs)
3557 && (sfs.f_type == 0x1373 /* devfs */ 3969 && (sfs.f_type == 0x1373 /* devfs */
3970 || sfs.f_type == 0x4006 /* fat */
3971 || sfs.f_type == 0x4d44 /* msdos */
3558 || sfs.f_type == 0xEF53 /* ext2/3 */ 3972 || sfs.f_type == 0xEF53 /* ext2/3 */
3973 || sfs.f_type == 0x72b6 /* jffs2 */
3974 || sfs.f_type == 0x858458f6 /* ramfs */
3975 || sfs.f_type == 0x5346544e /* ntfs */
3559 || sfs.f_type == 0x3153464a /* jfs */ 3976 || sfs.f_type == 0x3153464a /* jfs */
3977 || sfs.f_type == 0x9123683e /* btrfs */
3560 || sfs.f_type == 0x52654973 /* reiser3 */ 3978 || sfs.f_type == 0x52654973 /* reiser3 */
3561 || sfs.f_type == 0x01021994 /* tempfs */ 3979 || sfs.f_type == 0x01021994 /* tmpfs */
3562 || sfs.f_type == 0x58465342 /* xfs */)) 3980 || sfs.f_type == 0x58465342 /* xfs */))
3563 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3981 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3564 else 3982 else
3565 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3983 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3566 } 3984 }
… …
3679} 4097}
3680 4098
3681inline_size int 4099inline_size int
3682infy_newfd (void) 4100infy_newfd (void)
3683{ 4101{
3684#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4102#if defined IN_CLOEXEC && defined IN_NONBLOCK
3685 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4103 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3686 if (fd >= 0) 4104 if (fd >= 0)
3687 return fd; 4105 return fd;
3688#endif 4106#endif
3689 return inotify_init (); 4107 return inotify_init ();
… …
3764#else 4182#else
3765# define EV_LSTAT(p,b) lstat (p, b) 4183# define EV_LSTAT(p,b) lstat (p, b)
3766#endif 4184#endif
3767 4185
3768void 4186void
3769ev_stat_stat (EV_P_ ev_stat *w) 4187ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3770{ 4188{
3771 if (lstat (w->path, &w->attr) < 0) 4189 if (lstat (w->path, &w->attr) < 0)
3772 w->attr.st_nlink = 0; 4190 w->attr.st_nlink = 0;
3773 else if (!w->attr.st_nlink) 4191 else if (!w->attr.st_nlink)
3774 w->attr.st_nlink = 1; 4192 w->attr.st_nlink = 1;
… …
3813 ev_feed_event (EV_A_ w, EV_STAT); 4231 ev_feed_event (EV_A_ w, EV_STAT);
3814 } 4232 }
3815} 4233}
3816 4234
3817void 4235void
3818ev_stat_start (EV_P_ ev_stat *w) 4236ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3819{ 4237{
3820 if (expect_false (ev_is_active (w))) 4238 if (expect_false (ev_is_active (w)))
3821 return; 4239 return;
3822 4240
3823 ev_stat_stat (EV_A_ w); 4241 ev_stat_stat (EV_A_ w);
… …
3844 4262
3845 EV_FREQUENT_CHECK; 4263 EV_FREQUENT_CHECK;
3846} 4264}
3847 4265
3848void 4266void
3849ev_stat_stop (EV_P_ ev_stat *w) 4267ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3850{ 4268{
3851 clear_pending (EV_A_ (W)w); 4269 clear_pending (EV_A_ (W)w);
3852 if (expect_false (!ev_is_active (w))) 4270 if (expect_false (!ev_is_active (w)))
3853 return; 4271 return;
3854 4272
… …
3870} 4288}
3871#endif 4289#endif
3872 4290
3873#if EV_IDLE_ENABLE 4291#if EV_IDLE_ENABLE
3874void 4292void
3875ev_idle_start (EV_P_ ev_idle *w) 4293ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3876{ 4294{
3877 if (expect_false (ev_is_active (w))) 4295 if (expect_false (ev_is_active (w)))
3878 return; 4296 return;
3879 4297
3880 pri_adjust (EV_A_ (W)w); 4298 pri_adjust (EV_A_ (W)w);
… …
3893 4311
3894 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
3895} 4313}
3896 4314
3897void 4315void
3898ev_idle_stop (EV_P_ ev_idle *w) 4316ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3899{ 4317{
3900 clear_pending (EV_A_ (W)w); 4318 clear_pending (EV_A_ (W)w);
3901 if (expect_false (!ev_is_active (w))) 4319 if (expect_false (!ev_is_active (w)))
3902 return; 4320 return;
3903 4321
… …
3917} 4335}
3918#endif 4336#endif
3919 4337
3920#if EV_PREPARE_ENABLE 4338#if EV_PREPARE_ENABLE
3921void 4339void
3922ev_prepare_start (EV_P_ ev_prepare *w) 4340ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3923{ 4341{
3924 if (expect_false (ev_is_active (w))) 4342 if (expect_false (ev_is_active (w)))
3925 return; 4343 return;
3926 4344
3927 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
… …
3932 4350
3933 EV_FREQUENT_CHECK; 4351 EV_FREQUENT_CHECK;
3934} 4352}
3935 4353
3936void 4354void
3937ev_prepare_stop (EV_P_ ev_prepare *w) 4355ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3938{ 4356{
3939 clear_pending (EV_A_ (W)w); 4357 clear_pending (EV_A_ (W)w);
3940 if (expect_false (!ev_is_active (w))) 4358 if (expect_false (!ev_is_active (w)))
3941 return; 4359 return;
3942 4360
… …
3955} 4373}
3956#endif 4374#endif
3957 4375
3958#if EV_CHECK_ENABLE 4376#if EV_CHECK_ENABLE
3959void 4377void
3960ev_check_start (EV_P_ ev_check *w) 4378ev_check_start (EV_P_ ev_check *w) EV_THROW
3961{ 4379{
3962 if (expect_false (ev_is_active (w))) 4380 if (expect_false (ev_is_active (w)))
3963 return; 4381 return;
3964 4382
3965 EV_FREQUENT_CHECK; 4383 EV_FREQUENT_CHECK;
… …
3970 4388
3971 EV_FREQUENT_CHECK; 4389 EV_FREQUENT_CHECK;
3972} 4390}
3973 4391
3974void 4392void
3975ev_check_stop (EV_P_ ev_check *w) 4393ev_check_stop (EV_P_ ev_check *w) EV_THROW
3976{ 4394{
3977 clear_pending (EV_A_ (W)w); 4395 clear_pending (EV_A_ (W)w);
3978 if (expect_false (!ev_is_active (w))) 4396 if (expect_false (!ev_is_active (w)))
3979 return; 4397 return;
3980 4398
… …
3993} 4411}
3994#endif 4412#endif
3995 4413
3996#if EV_EMBED_ENABLE 4414#if EV_EMBED_ENABLE
3997void noinline 4415void noinline
3998ev_embed_sweep (EV_P_ ev_embed *w) 4416ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3999{ 4417{
4000 ev_run (w->other, EVRUN_NOWAIT); 4418 ev_run (w->other, EVRUN_NOWAIT);
4001} 4419}
4002 4420
4003static void 4421static void
… …
4051 ev_idle_stop (EV_A_ idle); 4469 ev_idle_stop (EV_A_ idle);
4052} 4470}
4053#endif 4471#endif
4054 4472
4055void 4473void
4056ev_embed_start (EV_P_ ev_embed *w) 4474ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4057{ 4475{
4058 if (expect_false (ev_is_active (w))) 4476 if (expect_false (ev_is_active (w)))
4059 return; 4477 return;
4060 4478
4061 { 4479 {
… …
4082 4500
4083 EV_FREQUENT_CHECK; 4501 EV_FREQUENT_CHECK;
4084} 4502}
4085 4503
4086void 4504void
4087ev_embed_stop (EV_P_ ev_embed *w) 4505ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4088{ 4506{
4089 clear_pending (EV_A_ (W)w); 4507 clear_pending (EV_A_ (W)w);
4090 if (expect_false (!ev_is_active (w))) 4508 if (expect_false (!ev_is_active (w)))
4091 return; 4509 return;
4092 4510
… …
4102} 4520}
4103#endif 4521#endif
4104 4522
4105#if EV_FORK_ENABLE 4523#if EV_FORK_ENABLE
4106void 4524void
4107ev_fork_start (EV_P_ ev_fork *w) 4525ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4108{ 4526{
4109 if (expect_false (ev_is_active (w))) 4527 if (expect_false (ev_is_active (w)))
4110 return; 4528 return;
4111 4529
4112 EV_FREQUENT_CHECK; 4530 EV_FREQUENT_CHECK;
… …
4117 4535
4118 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
4119} 4537}
4120 4538
4121void 4539void
4122ev_fork_stop (EV_P_ ev_fork *w) 4540ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4123{ 4541{
4124 clear_pending (EV_A_ (W)w); 4542 clear_pending (EV_A_ (W)w);
4125 if (expect_false (!ev_is_active (w))) 4543 if (expect_false (!ev_is_active (w)))
4126 return; 4544 return;
4127 4545
… …
4140} 4558}
4141#endif 4559#endif
4142 4560
4143#if EV_CLEANUP_ENABLE 4561#if EV_CLEANUP_ENABLE
4144void 4562void
4145ev_cleanup_start (EV_P_ ev_cleanup *w) 4563ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4146{ 4564{
4147 if (expect_false (ev_is_active (w))) 4565 if (expect_false (ev_is_active (w)))
4148 return; 4566 return;
4149 4567
4150 EV_FREQUENT_CHECK; 4568 EV_FREQUENT_CHECK;
… …
4157 ev_unref (EV_A); 4575 ev_unref (EV_A);
4158 EV_FREQUENT_CHECK; 4576 EV_FREQUENT_CHECK;
4159} 4577}
4160 4578
4161void 4579void
4162ev_cleanup_stop (EV_P_ ev_cleanup *w) 4580ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4163{ 4581{
4164 clear_pending (EV_A_ (W)w); 4582 clear_pending (EV_A_ (W)w);
4165 if (expect_false (!ev_is_active (w))) 4583 if (expect_false (!ev_is_active (w)))
4166 return; 4584 return;
4167 4585
… …
4181} 4599}
4182#endif 4600#endif
4183 4601
4184#if EV_ASYNC_ENABLE 4602#if EV_ASYNC_ENABLE
4185void 4603void
4186ev_async_start (EV_P_ ev_async *w) 4604ev_async_start (EV_P_ ev_async *w) EV_THROW
4187{ 4605{
4188 if (expect_false (ev_is_active (w))) 4606 if (expect_false (ev_is_active (w)))
4189 return; 4607 return;
4190 4608
4191 w->sent = 0; 4609 w->sent = 0;
… …
4200 4618
4201 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
4202} 4620}
4203 4621
4204void 4622void
4205ev_async_stop (EV_P_ ev_async *w) 4623ev_async_stop (EV_P_ ev_async *w) EV_THROW
4206{ 4624{
4207 clear_pending (EV_A_ (W)w); 4625 clear_pending (EV_A_ (W)w);
4208 if (expect_false (!ev_is_active (w))) 4626 if (expect_false (!ev_is_active (w)))
4209 return; 4627 return;
4210 4628
… …
4221 4639
4222 EV_FREQUENT_CHECK; 4640 EV_FREQUENT_CHECK;
4223} 4641}
4224 4642
4225void 4643void
4226ev_async_send (EV_P_ ev_async *w) 4644ev_async_send (EV_P_ ev_async *w) EV_THROW
4227{ 4645{
4228 w->sent = 1; 4646 w->sent = 1;
4229 evpipe_write (EV_A_ &async_pending); 4647 evpipe_write (EV_A_ &async_pending);
4230} 4648}
4231#endif 4649#endif
… …
4268 4686
4269 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4687 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4270} 4688}
4271 4689
4272void 4690void
4273ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4691ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4274{ 4692{
4275 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4693 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4276 4694
4277 if (expect_false (!once)) 4695 if (expect_false (!once))
4278 { 4696 {
… …
4300 4718
4301/*****************************************************************************/ 4719/*****************************************************************************/
4302 4720
4303#if EV_WALK_ENABLE 4721#if EV_WALK_ENABLE
4304void ecb_cold 4722void ecb_cold
4305ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4723ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4306{ 4724{
4307 int i, j; 4725 int i, j;
4308 ev_watcher_list *wl, *wn; 4726 ev_watcher_list *wl, *wn;
4309 4727
4310 if (types & (EV_IO | EV_EMBED)) 4728 if (types & (EV_IO | EV_EMBED))
… …
4416 4834
4417#if EV_MULTIPLICITY 4835#if EV_MULTIPLICITY
4418 #include "ev_wrap.h" 4836 #include "ev_wrap.h"
4419#endif 4837#endif
4420 4838
4421EV_CPP(})
4422

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