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Comparing libev/ev.c (file contents):
Revision 1.391 by root, Thu Aug 4 13:57:16 2011 UTC vs.
Revision 1.455 by root, Sun Apr 28 12:45:20 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__ ("")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
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")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
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 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
633 #elif defined __alpha__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
635 #elif defined __hppa__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif defined __ia64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
557 #endif 640 #endif
558 #endif 641 #endif
559#endif 642#endif
560 643
561#ifndef ECB_MEMORY_FENCE 644#ifndef ECB_MEMORY_FENCE
562 #if ECB_GCC_VERSION(4,4) 645 #if ECB_GCC_VERSION(4,7)
646 /* see comment below (stdatomic.h) about the C11 memory model. */
647 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
648
649 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
650 * without risking compile time errors with other compilers. We *could*
651 * define our own ecb_clang_has_feature, but I just can't be bothered to work
652 * around this shit time and again.
653 * #elif defined __clang && __has_feature (cxx_atomic)
654 * // see comment below (stdatomic.h) about the C11 memory model.
655 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
656 */
657
658 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
563 #define ECB_MEMORY_FENCE __sync_synchronize () 659 #define ECB_MEMORY_FENCE __sync_synchronize ()
564 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
565 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
566 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 660 #elif _MSC_VER >= 1400 /* VC++ 2005 */
567 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 661 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
568 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 662 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
569 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 663 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
570 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 664 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
571 #elif defined(_WIN32) 665 #elif defined _WIN32
572 #include <WinNT.h> 666 #include <WinNT.h>
573 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 667 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
574 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 668 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
575 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 669 #include <mbarrier.h>
670 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
672 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
673 #elif __xlC__
674 #define ECB_MEMORY_FENCE __sync ()
576 #endif 675 #endif
577#endif 676#endif
578 677
579#ifndef ECB_MEMORY_FENCE 678#ifndef ECB_MEMORY_FENCE
679 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
680 /* we assume that these memory fences work on all variables/all memory accesses, */
681 /* not just C11 atomics and atomic accesses */
682 #include <stdatomic.h>
683 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
684 /* any fence other than seq_cst, which isn't very efficient for us. */
685 /* Why that is, we don't know - either the C11 memory model is quite useless */
686 /* for most usages, or gcc and clang have a bug */
687 /* I *currently* lean towards the latter, and inefficiently implement */
688 /* all three of ecb's fences as a seq_cst fence */
689 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
690 #endif
691#endif
692
693#ifndef ECB_MEMORY_FENCE
694 #if !ECB_AVOID_PTHREADS
580 /* 695 /*
581 * if you get undefined symbol references to pthread_mutex_lock, 696 * if you get undefined symbol references to pthread_mutex_lock,
582 * or failure to find pthread.h, then you should implement 697 * or failure to find pthread.h, then you should implement
583 * the ECB_MEMORY_FENCE operations for your cpu/compiler 698 * the ECB_MEMORY_FENCE operations for your cpu/compiler
584 * OR provide pthread.h and link against the posix thread library 699 * OR provide pthread.h and link against the posix thread library
585 * of your system. 700 * of your system.
586 */ 701 */
587 #include <pthread.h> 702 #include <pthread.h>
588 #define ECB_NEEDS_PTHREADS 1 703 #define ECB_NEEDS_PTHREADS 1
589 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 704 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
590 705
591 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 706 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
592 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 707 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
708 #endif
709#endif
710
711#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
593 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 712 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
713#endif
714
715#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
594 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 716 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
595#endif 717#endif
596 718
597/*****************************************************************************/ 719/*****************************************************************************/
598
599#define ECB_C99 (__STDC_VERSION__ >= 199901L)
600 720
601#if __cplusplus 721#if __cplusplus
602 #define ecb_inline static inline 722 #define ecb_inline static inline
603#elif ECB_GCC_VERSION(2,5) 723#elif ECB_GCC_VERSION(2,5)
604 #define ecb_inline static __inline__ 724 #define ecb_inline static __inline__
… …
643#elif ECB_GCC_VERSION(3,0) 763#elif ECB_GCC_VERSION(3,0)
644 #define ecb_decltype(x) __typeof(x) 764 #define ecb_decltype(x) __typeof(x)
645#endif 765#endif
646 766
647#define ecb_noinline ecb_attribute ((__noinline__)) 767#define ecb_noinline ecb_attribute ((__noinline__))
648#define ecb_noreturn ecb_attribute ((__noreturn__))
649#define ecb_unused ecb_attribute ((__unused__)) 768#define ecb_unused ecb_attribute ((__unused__))
650#define ecb_const ecb_attribute ((__const__)) 769#define ecb_const ecb_attribute ((__const__))
651#define ecb_pure ecb_attribute ((__pure__)) 770#define ecb_pure ecb_attribute ((__pure__))
771
772#if ECB_C11
773 #define ecb_noreturn _Noreturn
774#else
775 #define ecb_noreturn ecb_attribute ((__noreturn__))
776#endif
652 777
653#if ECB_GCC_VERSION(4,3) 778#if ECB_GCC_VERSION(4,3)
654 #define ecb_artificial ecb_attribute ((__artificial__)) 779 #define ecb_artificial ecb_attribute ((__artificial__))
655 #define ecb_hot ecb_attribute ((__hot__)) 780 #define ecb_hot ecb_attribute ((__hot__))
656 #define ecb_cold ecb_attribute ((__cold__)) 781 #define ecb_cold ecb_attribute ((__cold__))
… …
747 872
748 return r + ecb_ld32 (x); 873 return r + ecb_ld32 (x);
749 } 874 }
750#endif 875#endif
751 876
877ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
878ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
879ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
880ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
881
882ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
883ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
884{
885 return ( (x * 0x0802U & 0x22110U)
886 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
887}
888
889ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
890ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
891{
892 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
893 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
894 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
895 x = ( x >> 8 ) | ( x << 8);
896
897 return x;
898}
899
900ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
901ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
902{
903 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
904 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
905 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
906 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
907 x = ( x >> 16 ) | ( x << 16);
908
909 return x;
910}
911
752/* popcount64 is only available on 64 bit cpus as gcc builtin */ 912/* popcount64 is only available on 64 bit cpus as gcc builtin */
753/* so for this version we are lazy */ 913/* so for this version we are lazy */
754ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 914ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
755ecb_function_ int 915ecb_function_ int
756ecb_popcount64 (uint64_t x) 916ecb_popcount64 (uint64_t x)
… …
805 965
806#if ECB_GCC_VERSION(4,5) 966#if ECB_GCC_VERSION(4,5)
807 #define ecb_unreachable() __builtin_unreachable () 967 #define ecb_unreachable() __builtin_unreachable ()
808#else 968#else
809 /* this seems to work fine, but gcc always emits a warning for it :/ */ 969 /* this seems to work fine, but gcc always emits a warning for it :/ */
810 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 970 ecb_inline void ecb_unreachable (void) ecb_noreturn;
811 ecb_function_ void ecb_unreachable (void) { } 971 ecb_inline void ecb_unreachable (void) { }
812#endif 972#endif
813 973
814/* try to tell the compiler that some condition is definitely true */ 974/* try to tell the compiler that some condition is definitely true */
815#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 975#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
816 976
817ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 977ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
818ecb_function_ unsigned char 978ecb_inline unsigned char
819ecb_byteorder_helper (void) 979ecb_byteorder_helper (void)
820{ 980{
821 const uint32_t u = 0x11223344; 981 /* the union code still generates code under pressure in gcc, */
822 return *(unsigned char *)&u; 982 /* but less than using pointers, and always seems to */
983 /* successfully return a constant. */
984 /* the reason why we have this horrible preprocessor mess */
985 /* is to avoid it in all cases, at least on common architectures */
986 /* or when using a recent enough gcc version (>= 4.6) */
987#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
988 return 0x44;
989#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
990 return 0x44;
991#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
992 return 0x11;
993#else
994 union
995 {
996 uint32_t i;
997 uint8_t c;
998 } u = { 0x11223344 };
999 return u.c;
1000#endif
823} 1001}
824 1002
825ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1003ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
826ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1004ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
827ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1005ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
828ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1006ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
829 1007
830#if ECB_GCC_VERSION(3,0) || ECB_C99 1008#if ECB_GCC_VERSION(3,0) || ECB_C99
831 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1009 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
832#else 1010#else
833 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1011 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1012#endif
1013
1014#if __cplusplus
1015 template<typename T>
1016 static inline T ecb_div_rd (T val, T div)
1017 {
1018 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1019 }
1020 template<typename T>
1021 static inline T ecb_div_ru (T val, T div)
1022 {
1023 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1024 }
1025#else
1026 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1027 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
834#endif 1028#endif
835 1029
836#if ecb_cplusplus_does_not_suck 1030#if ecb_cplusplus_does_not_suck
837 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1031 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
838 template<typename T, int N> 1032 template<typename T, int N>
… …
842 } 1036 }
843#else 1037#else
844 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1038 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
845#endif 1039#endif
846 1040
1041/*******************************************************************************/
1042/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1043
1044/* basically, everything uses "ieee pure-endian" floating point numbers */
1045/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1046#if 0 \
1047 || __i386 || __i386__ \
1048 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1049 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1050 || defined __arm__ && defined __ARM_EABI__ \
1051 || defined __s390__ || defined __s390x__ \
1052 || defined __mips__ \
1053 || defined __alpha__ \
1054 || defined __hppa__ \
1055 || defined __ia64__ \
1056 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1057 #define ECB_STDFP 1
1058 #include <string.h> /* for memcpy */
1059#else
1060 #define ECB_STDFP 0
1061 #include <math.h> /* for frexp*, ldexp* */
1062#endif
1063
1064#ifndef ECB_NO_LIBM
1065
1066 /* convert a float to ieee single/binary32 */
1067 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1068 ecb_function_ uint32_t
1069 ecb_float_to_binary32 (float x)
1070 {
1071 uint32_t r;
1072
1073 #if ECB_STDFP
1074 memcpy (&r, &x, 4);
1075 #else
1076 /* slow emulation, works for anything but -0 */
1077 uint32_t m;
1078 int e;
1079
1080 if (x == 0e0f ) return 0x00000000U;
1081 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1082 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1083 if (x != x ) return 0x7fbfffffU;
1084
1085 m = frexpf (x, &e) * 0x1000000U;
1086
1087 r = m & 0x80000000U;
1088
1089 if (r)
1090 m = -m;
1091
1092 if (e <= -126)
1093 {
1094 m &= 0xffffffU;
1095 m >>= (-125 - e);
1096 e = -126;
1097 }
1098
1099 r |= (e + 126) << 23;
1100 r |= m & 0x7fffffU;
1101 #endif
1102
1103 return r;
1104 }
1105
1106 /* converts an ieee single/binary32 to a float */
1107 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1108 ecb_function_ float
1109 ecb_binary32_to_float (uint32_t x)
1110 {
1111 float r;
1112
1113 #if ECB_STDFP
1114 memcpy (&r, &x, 4);
1115 #else
1116 /* emulation, only works for normals and subnormals and +0 */
1117 int neg = x >> 31;
1118 int e = (x >> 23) & 0xffU;
1119
1120 x &= 0x7fffffU;
1121
1122 if (e)
1123 x |= 0x800000U;
1124 else
1125 e = 1;
1126
1127 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1128 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1129
1130 r = neg ? -r : r;
1131 #endif
1132
1133 return r;
1134 }
1135
1136 /* convert a double to ieee double/binary64 */
1137 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1138 ecb_function_ uint64_t
1139 ecb_double_to_binary64 (double x)
1140 {
1141 uint64_t r;
1142
1143 #if ECB_STDFP
1144 memcpy (&r, &x, 8);
1145 #else
1146 /* slow emulation, works for anything but -0 */
1147 uint64_t m;
1148 int e;
1149
1150 if (x == 0e0 ) return 0x0000000000000000U;
1151 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1152 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1153 if (x != x ) return 0X7ff7ffffffffffffU;
1154
1155 m = frexp (x, &e) * 0x20000000000000U;
1156
1157 r = m & 0x8000000000000000;;
1158
1159 if (r)
1160 m = -m;
1161
1162 if (e <= -1022)
1163 {
1164 m &= 0x1fffffffffffffU;
1165 m >>= (-1021 - e);
1166 e = -1022;
1167 }
1168
1169 r |= ((uint64_t)(e + 1022)) << 52;
1170 r |= m & 0xfffffffffffffU;
1171 #endif
1172
1173 return r;
1174 }
1175
1176 /* converts an ieee double/binary64 to a double */
1177 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1178 ecb_function_ double
1179 ecb_binary64_to_double (uint64_t x)
1180 {
1181 double r;
1182
1183 #if ECB_STDFP
1184 memcpy (&r, &x, 8);
1185 #else
1186 /* emulation, only works for normals and subnormals and +0 */
1187 int neg = x >> 63;
1188 int e = (x >> 52) & 0x7ffU;
1189
1190 x &= 0xfffffffffffffU;
1191
1192 if (e)
1193 x |= 0x10000000000000U;
1194 else
1195 e = 1;
1196
1197 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1198 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1199
1200 r = neg ? -r : r;
1201 #endif
1202
1203 return r;
1204 }
1205
1206#endif
1207
847#endif 1208#endif
848 1209
849/* ECB.H END */ 1210/* ECB.H END */
1211
1212#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1213/* if your architecture doesn't need memory fences, e.g. because it is
1214 * single-cpu/core, or if you use libev in a project that doesn't use libev
1215 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1216 * libev, in which cases the memory fences become nops.
1217 * alternatively, you can remove this #error and link against libpthread,
1218 * which will then provide the memory fences.
1219 */
1220# error "memory fences not defined for your architecture, please report"
1221#endif
1222
1223#ifndef ECB_MEMORY_FENCE
1224# define ECB_MEMORY_FENCE do { } while (0)
1225# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1226# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1227#endif
850 1228
851#define expect_false(cond) ecb_expect_false (cond) 1229#define expect_false(cond) ecb_expect_false (cond)
852#define expect_true(cond) ecb_expect_true (cond) 1230#define expect_true(cond) ecb_expect_true (cond)
853#define noinline ecb_noinline 1231#define noinline ecb_noinline
854 1232
… …
1000{ 1378{
1001 write (STDERR_FILENO, msg, strlen (msg)); 1379 write (STDERR_FILENO, msg, strlen (msg));
1002} 1380}
1003#endif 1381#endif
1004 1382
1005static void (*syserr_cb)(const char *msg); 1383static void (*syserr_cb)(const char *msg) EV_THROW;
1006 1384
1007void ecb_cold 1385void ecb_cold
1008ev_set_syserr_cb (void (*cb)(const char *msg)) 1386ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1009{ 1387{
1010 syserr_cb = cb; 1388 syserr_cb = cb;
1011} 1389}
1012 1390
1013static void noinline ecb_cold 1391static void noinline ecb_cold
… …
1031 abort (); 1409 abort ();
1032 } 1410 }
1033} 1411}
1034 1412
1035static void * 1413static void *
1036ev_realloc_emul (void *ptr, long size) 1414ev_realloc_emul (void *ptr, long size) EV_THROW
1037{ 1415{
1038#if __GLIBC__
1039 return realloc (ptr, size);
1040#else
1041 /* some systems, notably openbsd and darwin, fail to properly 1416 /* some systems, notably openbsd and darwin, fail to properly
1042 * implement realloc (x, 0) (as required by both ansi c-89 and 1417 * implement realloc (x, 0) (as required by both ansi c-89 and
1043 * the single unix specification, so work around them here. 1418 * the single unix specification, so work around them here.
1419 * recently, also (at least) fedora and debian started breaking it,
1420 * despite documenting it otherwise.
1044 */ 1421 */
1045 1422
1046 if (size) 1423 if (size)
1047 return realloc (ptr, size); 1424 return realloc (ptr, size);
1048 1425
1049 free (ptr); 1426 free (ptr);
1050 return 0; 1427 return 0;
1051#endif
1052} 1428}
1053 1429
1054static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1430static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1055 1431
1056void ecb_cold 1432void ecb_cold
1057ev_set_allocator (void *(*cb)(void *ptr, long size)) 1433ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1058{ 1434{
1059 alloc = cb; 1435 alloc = cb;
1060} 1436}
1061 1437
1062inline_speed void * 1438inline_speed void *
… …
1150 #undef VAR 1526 #undef VAR
1151 }; 1527 };
1152 #include "ev_wrap.h" 1528 #include "ev_wrap.h"
1153 1529
1154 static struct ev_loop default_loop_struct; 1530 static struct ev_loop default_loop_struct;
1155 struct ev_loop *ev_default_loop_ptr; 1531 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1156 1532
1157#else 1533#else
1158 1534
1159 ev_tstamp ev_rt_now; 1535 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1160 #define VAR(name,decl) static decl; 1536 #define VAR(name,decl) static decl;
1161 #include "ev_vars.h" 1537 #include "ev_vars.h"
1162 #undef VAR 1538 #undef VAR
1163 1539
1164 static int ev_default_loop_ptr; 1540 static int ev_default_loop_ptr;
… …
1179 1555
1180/*****************************************************************************/ 1556/*****************************************************************************/
1181 1557
1182#ifndef EV_HAVE_EV_TIME 1558#ifndef EV_HAVE_EV_TIME
1183ev_tstamp 1559ev_tstamp
1184ev_time (void) 1560ev_time (void) EV_THROW
1185{ 1561{
1186#if EV_USE_REALTIME 1562#if EV_USE_REALTIME
1187 if (expect_true (have_realtime)) 1563 if (expect_true (have_realtime))
1188 { 1564 {
1189 struct timespec ts; 1565 struct timespec ts;
… …
1213 return ev_time (); 1589 return ev_time ();
1214} 1590}
1215 1591
1216#if EV_MULTIPLICITY 1592#if EV_MULTIPLICITY
1217ev_tstamp 1593ev_tstamp
1218ev_now (EV_P) 1594ev_now (EV_P) EV_THROW
1219{ 1595{
1220 return ev_rt_now; 1596 return ev_rt_now;
1221} 1597}
1222#endif 1598#endif
1223 1599
1224void 1600void
1225ev_sleep (ev_tstamp delay) 1601ev_sleep (ev_tstamp delay) EV_THROW
1226{ 1602{
1227 if (delay > 0.) 1603 if (delay > 0.)
1228 { 1604 {
1229#if EV_USE_NANOSLEEP 1605#if EV_USE_NANOSLEEP
1230 struct timespec ts; 1606 struct timespec ts;
1231 1607
1232 EV_TS_SET (ts, delay); 1608 EV_TS_SET (ts, delay);
1233 nanosleep (&ts, 0); 1609 nanosleep (&ts, 0);
1234#elif defined(_WIN32) 1610#elif defined _WIN32
1235 Sleep ((unsigned long)(delay * 1e3)); 1611 Sleep ((unsigned long)(delay * 1e3));
1236#else 1612#else
1237 struct timeval tv; 1613 struct timeval tv;
1238 1614
1239 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1615 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1258 1634
1259 do 1635 do
1260 ncur <<= 1; 1636 ncur <<= 1;
1261 while (cnt > ncur); 1637 while (cnt > ncur);
1262 1638
1263 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1639 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1264 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1640 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1265 { 1641 {
1266 ncur *= elem; 1642 ncur *= elem;
1267 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1643 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1268 ncur = ncur - sizeof (void *) * 4; 1644 ncur = ncur - sizeof (void *) * 4;
… …
1311pendingcb (EV_P_ ev_prepare *w, int revents) 1687pendingcb (EV_P_ ev_prepare *w, int revents)
1312{ 1688{
1313} 1689}
1314 1690
1315void noinline 1691void noinline
1316ev_feed_event (EV_P_ void *w, int revents) 1692ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1317{ 1693{
1318 W w_ = (W)w; 1694 W w_ = (W)w;
1319 int pri = ABSPRI (w_); 1695 int pri = ABSPRI (w_);
1320 1696
1321 if (expect_false (w_->pending)) 1697 if (expect_false (w_->pending))
… …
1325 w_->pending = ++pendingcnt [pri]; 1701 w_->pending = ++pendingcnt [pri];
1326 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1702 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1327 pendings [pri][w_->pending - 1].w = w_; 1703 pendings [pri][w_->pending - 1].w = w_;
1328 pendings [pri][w_->pending - 1].events = revents; 1704 pendings [pri][w_->pending - 1].events = revents;
1329 } 1705 }
1706
1707 pendingpri = NUMPRI - 1;
1330} 1708}
1331 1709
1332inline_speed void 1710inline_speed void
1333feed_reverse (EV_P_ W w) 1711feed_reverse (EV_P_ W w)
1334{ 1712{
… …
1380 if (expect_true (!anfd->reify)) 1758 if (expect_true (!anfd->reify))
1381 fd_event_nocheck (EV_A_ fd, revents); 1759 fd_event_nocheck (EV_A_ fd, revents);
1382} 1760}
1383 1761
1384void 1762void
1385ev_feed_fd_event (EV_P_ int fd, int revents) 1763ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1386{ 1764{
1387 if (fd >= 0 && fd < anfdmax) 1765 if (fd >= 0 && fd < anfdmax)
1388 fd_event_nocheck (EV_A_ fd, revents); 1766 fd_event_nocheck (EV_A_ fd, revents);
1389} 1767}
1390 1768
… …
1709static void noinline ecb_cold 2087static void noinline ecb_cold
1710evpipe_init (EV_P) 2088evpipe_init (EV_P)
1711{ 2089{
1712 if (!ev_is_active (&pipe_w)) 2090 if (!ev_is_active (&pipe_w))
1713 { 2091 {
2092 int fds [2];
2093
1714# if EV_USE_EVENTFD 2094# if EV_USE_EVENTFD
2095 fds [0] = -1;
1715 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2096 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1716 if (evfd < 0 && errno == EINVAL) 2097 if (fds [1] < 0 && errno == EINVAL)
1717 evfd = eventfd (0, 0); 2098 fds [1] = eventfd (0, 0);
1718 2099
1719 if (evfd >= 0) 2100 if (fds [1] < 0)
2101# endif
1720 { 2102 {
2103 while (pipe (fds))
2104 ev_syserr ("(libev) error creating signal/async pipe");
2105
2106 fd_intern (fds [0]);
2107 }
2108
1721 evpipe [0] = -1; 2109 evpipe [0] = fds [0];
1722 fd_intern (evfd); /* doing it twice doesn't hurt */ 2110
1723 ev_io_set (&pipe_w, evfd, EV_READ); 2111 if (evpipe [1] < 0)
2112 evpipe [1] = fds [1]; /* first call, set write fd */
2113 else
2114 {
2115 /* on subsequent calls, do not change evpipe [1] */
2116 /* so that evpipe_write can always rely on its value. */
2117 /* this branch does not do anything sensible on windows, */
2118 /* so must not be executed on windows */
2119
2120 dup2 (fds [1], evpipe [1]);
2121 close (fds [1]);
2122 }
2123
2124 fd_intern (evpipe [1]);
2125
2126 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2127 ev_io_start (EV_A_ &pipe_w);
2128 ev_unref (EV_A); /* watcher should not keep loop alive */
2129 }
2130}
2131
2132inline_speed void
2133evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2134{
2135 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2136
2137 if (expect_true (*flag))
2138 return;
2139
2140 *flag = 1;
2141 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2142
2143 pipe_write_skipped = 1;
2144
2145 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2146
2147 if (pipe_write_wanted)
2148 {
2149 int old_errno;
2150
2151 pipe_write_skipped = 0;
2152 ECB_MEMORY_FENCE_RELEASE;
2153
2154 old_errno = errno; /* save errno because write will clobber it */
2155
2156#if EV_USE_EVENTFD
2157 if (evpipe [0] < 0)
2158 {
2159 uint64_t counter = 1;
2160 write (evpipe [1], &counter, sizeof (uint64_t));
1724 } 2161 }
1725 else 2162 else
1726# endif 2163#endif
1727 { 2164 {
1728 while (pipe (evpipe)) 2165#ifdef _WIN32
1729 ev_syserr ("(libev) error creating signal/async pipe"); 2166 WSABUF buf;
1730 2167 DWORD sent;
1731 fd_intern (evpipe [0]); 2168 buf.buf = &buf;
1732 fd_intern (evpipe [1]); 2169 buf.len = 1;
1733 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2170 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1734 } 2171#else
1735
1736 ev_io_start (EV_A_ &pipe_w);
1737 ev_unref (EV_A); /* watcher should not keep loop alive */
1738 }
1739}
1740
1741inline_speed void
1742evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1743{
1744 if (expect_true (*flag))
1745 return;
1746
1747 *flag = 1;
1748
1749 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1750
1751 pipe_write_skipped = 1;
1752
1753 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1754
1755 if (pipe_write_wanted)
1756 {
1757 int old_errno;
1758
1759 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1760
1761 old_errno = errno; /* save errno because write will clobber it */
1762
1763#if EV_USE_EVENTFD
1764 if (evfd >= 0)
1765 {
1766 uint64_t counter = 1;
1767 write (evfd, &counter, sizeof (uint64_t));
1768 }
1769 else
1770#endif
1771 {
1772 /* win32 people keep sending patches that change this write() to send() */
1773 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1774 /* so when you think this write should be a send instead, please find out */
1775 /* where your send() is from - it's definitely not the microsoft send, and */
1776 /* tell me. thank you. */
1777 write (evpipe [1], &(evpipe [1]), 1); 2172 write (evpipe [1], &(evpipe [1]), 1);
2173#endif
1778 } 2174 }
1779 2175
1780 errno = old_errno; 2176 errno = old_errno;
1781 } 2177 }
1782} 2178}
… …
1789 int i; 2185 int i;
1790 2186
1791 if (revents & EV_READ) 2187 if (revents & EV_READ)
1792 { 2188 {
1793#if EV_USE_EVENTFD 2189#if EV_USE_EVENTFD
1794 if (evfd >= 0) 2190 if (evpipe [0] < 0)
1795 { 2191 {
1796 uint64_t counter; 2192 uint64_t counter;
1797 read (evfd, &counter, sizeof (uint64_t)); 2193 read (evpipe [1], &counter, sizeof (uint64_t));
1798 } 2194 }
1799 else 2195 else
1800#endif 2196#endif
1801 { 2197 {
1802 char dummy; 2198 char dummy[4];
1803 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2199#ifdef _WIN32
2200 WSABUF buf;
2201 DWORD recvd;
2202 DWORD flags = 0;
2203 buf.buf = dummy;
2204 buf.len = sizeof (dummy);
2205 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2206#else
1804 read (evpipe [0], &dummy, 1); 2207 read (evpipe [0], &dummy, sizeof (dummy));
2208#endif
1805 } 2209 }
1806 } 2210 }
1807 2211
1808 pipe_write_skipped = 0; 2212 pipe_write_skipped = 0;
2213
2214 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1809 2215
1810#if EV_SIGNAL_ENABLE 2216#if EV_SIGNAL_ENABLE
1811 if (sig_pending) 2217 if (sig_pending)
1812 { 2218 {
1813 sig_pending = 0; 2219 sig_pending = 0;
2220
2221 ECB_MEMORY_FENCE;
1814 2222
1815 for (i = EV_NSIG - 1; i--; ) 2223 for (i = EV_NSIG - 1; i--; )
1816 if (expect_false (signals [i].pending)) 2224 if (expect_false (signals [i].pending))
1817 ev_feed_signal_event (EV_A_ i + 1); 2225 ev_feed_signal_event (EV_A_ i + 1);
1818 } 2226 }
… …
1820 2228
1821#if EV_ASYNC_ENABLE 2229#if EV_ASYNC_ENABLE
1822 if (async_pending) 2230 if (async_pending)
1823 { 2231 {
1824 async_pending = 0; 2232 async_pending = 0;
2233
2234 ECB_MEMORY_FENCE;
1825 2235
1826 for (i = asynccnt; i--; ) 2236 for (i = asynccnt; i--; )
1827 if (asyncs [i]->sent) 2237 if (asyncs [i]->sent)
1828 { 2238 {
1829 asyncs [i]->sent = 0; 2239 asyncs [i]->sent = 0;
2240 ECB_MEMORY_FENCE_RELEASE;
1830 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2241 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1831 } 2242 }
1832 } 2243 }
1833#endif 2244#endif
1834} 2245}
1835 2246
1836/*****************************************************************************/ 2247/*****************************************************************************/
1837 2248
1838void 2249void
1839ev_feed_signal (int signum) 2250ev_feed_signal (int signum) EV_THROW
1840{ 2251{
1841#if EV_MULTIPLICITY 2252#if EV_MULTIPLICITY
2253 EV_P;
2254 ECB_MEMORY_FENCE_ACQUIRE;
1842 EV_P = signals [signum - 1].loop; 2255 EV_A = signals [signum - 1].loop;
1843 2256
1844 if (!EV_A) 2257 if (!EV_A)
1845 return; 2258 return;
1846#endif 2259#endif
1847 2260
1848 if (!ev_active (&pipe_w))
1849 return;
1850
1851 signals [signum - 1].pending = 1; 2261 signals [signum - 1].pending = 1;
1852 evpipe_write (EV_A_ &sig_pending); 2262 evpipe_write (EV_A_ &sig_pending);
1853} 2263}
1854 2264
1855static void 2265static void
… …
1861 2271
1862 ev_feed_signal (signum); 2272 ev_feed_signal (signum);
1863} 2273}
1864 2274
1865void noinline 2275void noinline
1866ev_feed_signal_event (EV_P_ int signum) 2276ev_feed_signal_event (EV_P_ int signum) EV_THROW
1867{ 2277{
1868 WL w; 2278 WL w;
1869 2279
1870 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2280 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1871 return; 2281 return;
1872 2282
1873 --signum; 2283 --signum;
1874 2284
1875#if EV_MULTIPLICITY 2285#if EV_MULTIPLICITY
… …
1879 if (expect_false (signals [signum].loop != EV_A)) 2289 if (expect_false (signals [signum].loop != EV_A))
1880 return; 2290 return;
1881#endif 2291#endif
1882 2292
1883 signals [signum].pending = 0; 2293 signals [signum].pending = 0;
2294 ECB_MEMORY_FENCE_RELEASE;
1884 2295
1885 for (w = signals [signum].head; w; w = w->next) 2296 for (w = signals [signum].head; w; w = w->next)
1886 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2297 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1887} 2298}
1888 2299
… …
1987#if EV_USE_SELECT 2398#if EV_USE_SELECT
1988# include "ev_select.c" 2399# include "ev_select.c"
1989#endif 2400#endif
1990 2401
1991int ecb_cold 2402int ecb_cold
1992ev_version_major (void) 2403ev_version_major (void) EV_THROW
1993{ 2404{
1994 return EV_VERSION_MAJOR; 2405 return EV_VERSION_MAJOR;
1995} 2406}
1996 2407
1997int ecb_cold 2408int ecb_cold
1998ev_version_minor (void) 2409ev_version_minor (void) EV_THROW
1999{ 2410{
2000 return EV_VERSION_MINOR; 2411 return EV_VERSION_MINOR;
2001} 2412}
2002 2413
2003/* return true if we are running with elevated privileges and should ignore env variables */ 2414/* return true if we are running with elevated privileges and should ignore env variables */
… …
2011 || getgid () != getegid (); 2422 || getgid () != getegid ();
2012#endif 2423#endif
2013} 2424}
2014 2425
2015unsigned int ecb_cold 2426unsigned int ecb_cold
2016ev_supported_backends (void) 2427ev_supported_backends (void) EV_THROW
2017{ 2428{
2018 unsigned int flags = 0; 2429 unsigned int flags = 0;
2019 2430
2020 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2431 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2021 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2432 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2025 2436
2026 return flags; 2437 return flags;
2027} 2438}
2028 2439
2029unsigned int ecb_cold 2440unsigned int ecb_cold
2030ev_recommended_backends (void) 2441ev_recommended_backends (void) EV_THROW
2031{ 2442{
2032 unsigned int flags = ev_supported_backends (); 2443 unsigned int flags = ev_supported_backends ();
2033 2444
2034#ifndef __NetBSD__ 2445#ifndef __NetBSD__
2035 /* kqueue is borked on everything but netbsd apparently */ 2446 /* kqueue is borked on everything but netbsd apparently */
… …
2047 2458
2048 return flags; 2459 return flags;
2049} 2460}
2050 2461
2051unsigned int ecb_cold 2462unsigned int ecb_cold
2052ev_embeddable_backends (void) 2463ev_embeddable_backends (void) EV_THROW
2053{ 2464{
2054 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2465 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2055 2466
2056 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2467 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2057 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2468 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2059 2470
2060 return flags; 2471 return flags;
2061} 2472}
2062 2473
2063unsigned int 2474unsigned int
2064ev_backend (EV_P) 2475ev_backend (EV_P) EV_THROW
2065{ 2476{
2066 return backend; 2477 return backend;
2067} 2478}
2068 2479
2069#if EV_FEATURE_API 2480#if EV_FEATURE_API
2070unsigned int 2481unsigned int
2071ev_iteration (EV_P) 2482ev_iteration (EV_P) EV_THROW
2072{ 2483{
2073 return loop_count; 2484 return loop_count;
2074} 2485}
2075 2486
2076unsigned int 2487unsigned int
2077ev_depth (EV_P) 2488ev_depth (EV_P) EV_THROW
2078{ 2489{
2079 return loop_depth; 2490 return loop_depth;
2080} 2491}
2081 2492
2082void 2493void
2083ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2494ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2084{ 2495{
2085 io_blocktime = interval; 2496 io_blocktime = interval;
2086} 2497}
2087 2498
2088void 2499void
2089ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2500ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2090{ 2501{
2091 timeout_blocktime = interval; 2502 timeout_blocktime = interval;
2092} 2503}
2093 2504
2094void 2505void
2095ev_set_userdata (EV_P_ void *data) 2506ev_set_userdata (EV_P_ void *data) EV_THROW
2096{ 2507{
2097 userdata = data; 2508 userdata = data;
2098} 2509}
2099 2510
2100void * 2511void *
2101ev_userdata (EV_P) 2512ev_userdata (EV_P) EV_THROW
2102{ 2513{
2103 return userdata; 2514 return userdata;
2104} 2515}
2105 2516
2106void 2517void
2107ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2518ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2108{ 2519{
2109 invoke_cb = invoke_pending_cb; 2520 invoke_cb = invoke_pending_cb;
2110} 2521}
2111 2522
2112void 2523void
2113ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2524ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2114{ 2525{
2115 release_cb = release; 2526 release_cb = release;
2116 acquire_cb = acquire; 2527 acquire_cb = acquire;
2117} 2528}
2118#endif 2529#endif
2119 2530
2120/* initialise a loop structure, must be zero-initialised */ 2531/* initialise a loop structure, must be zero-initialised */
2121static void noinline ecb_cold 2532static void noinline ecb_cold
2122loop_init (EV_P_ unsigned int flags) 2533loop_init (EV_P_ unsigned int flags) EV_THROW
2123{ 2534{
2124 if (!backend) 2535 if (!backend)
2125 { 2536 {
2126 origflags = flags; 2537 origflags = flags;
2127 2538
… …
2172#if EV_ASYNC_ENABLE 2583#if EV_ASYNC_ENABLE
2173 async_pending = 0; 2584 async_pending = 0;
2174#endif 2585#endif
2175 pipe_write_skipped = 0; 2586 pipe_write_skipped = 0;
2176 pipe_write_wanted = 0; 2587 pipe_write_wanted = 0;
2588 evpipe [0] = -1;
2589 evpipe [1] = -1;
2177#if EV_USE_INOTIFY 2590#if EV_USE_INOTIFY
2178 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2591 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2179#endif 2592#endif
2180#if EV_USE_SIGNALFD 2593#if EV_USE_SIGNALFD
2181 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2594 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2232 EV_INVOKE_PENDING; 2645 EV_INVOKE_PENDING;
2233 } 2646 }
2234#endif 2647#endif
2235 2648
2236#if EV_CHILD_ENABLE 2649#if EV_CHILD_ENABLE
2237 if (ev_is_active (&childev)) 2650 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2238 { 2651 {
2239 ev_ref (EV_A); /* child watcher */ 2652 ev_ref (EV_A); /* child watcher */
2240 ev_signal_stop (EV_A_ &childev); 2653 ev_signal_stop (EV_A_ &childev);
2241 } 2654 }
2242#endif 2655#endif
… …
2244 if (ev_is_active (&pipe_w)) 2657 if (ev_is_active (&pipe_w))
2245 { 2658 {
2246 /*ev_ref (EV_A);*/ 2659 /*ev_ref (EV_A);*/
2247 /*ev_io_stop (EV_A_ &pipe_w);*/ 2660 /*ev_io_stop (EV_A_ &pipe_w);*/
2248 2661
2249#if EV_USE_EVENTFD
2250 if (evfd >= 0)
2251 close (evfd);
2252#endif
2253
2254 if (evpipe [0] >= 0)
2255 {
2256 EV_WIN32_CLOSE_FD (evpipe [0]); 2662 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2257 EV_WIN32_CLOSE_FD (evpipe [1]); 2663 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2258 }
2259 } 2664 }
2260 2665
2261#if EV_USE_SIGNALFD 2666#if EV_USE_SIGNALFD
2262 if (ev_is_active (&sigfd_w)) 2667 if (ev_is_active (&sigfd_w))
2263 close (sigfd); 2668 close (sigfd);
… …
2349#endif 2754#endif
2350#if EV_USE_INOTIFY 2755#if EV_USE_INOTIFY
2351 infy_fork (EV_A); 2756 infy_fork (EV_A);
2352#endif 2757#endif
2353 2758
2759#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2354 if (ev_is_active (&pipe_w)) 2760 if (ev_is_active (&pipe_w))
2355 { 2761 {
2356 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2762 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2357 2763
2358 ev_ref (EV_A); 2764 ev_ref (EV_A);
2359 ev_io_stop (EV_A_ &pipe_w); 2765 ev_io_stop (EV_A_ &pipe_w);
2360 2766
2361#if EV_USE_EVENTFD
2362 if (evfd >= 0)
2363 close (evfd);
2364#endif
2365
2366 if (evpipe [0] >= 0) 2767 if (evpipe [0] >= 0)
2367 {
2368 EV_WIN32_CLOSE_FD (evpipe [0]); 2768 EV_WIN32_CLOSE_FD (evpipe [0]);
2369 EV_WIN32_CLOSE_FD (evpipe [1]);
2370 }
2371 2769
2372#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2373 evpipe_init (EV_A); 2770 evpipe_init (EV_A);
2374 /* now iterate over everything, in case we missed something */ 2771 /* iterate over everything, in case we missed something before */
2375 pipecb (EV_A_ &pipe_w, EV_READ); 2772 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2376#endif
2377 } 2773 }
2774#endif
2378 2775
2379 postfork = 0; 2776 postfork = 0;
2380} 2777}
2381 2778
2382#if EV_MULTIPLICITY 2779#if EV_MULTIPLICITY
2383 2780
2384struct ev_loop * ecb_cold 2781struct ev_loop * ecb_cold
2385ev_loop_new (unsigned int flags) 2782ev_loop_new (unsigned int flags) EV_THROW
2386{ 2783{
2387 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2784 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2388 2785
2389 memset (EV_A, 0, sizeof (struct ev_loop)); 2786 memset (EV_A, 0, sizeof (struct ev_loop));
2390 loop_init (EV_A_ flags); 2787 loop_init (EV_A_ flags);
… …
2434} 2831}
2435#endif 2832#endif
2436 2833
2437#if EV_FEATURE_API 2834#if EV_FEATURE_API
2438void ecb_cold 2835void ecb_cold
2439ev_verify (EV_P) 2836ev_verify (EV_P) EV_THROW
2440{ 2837{
2441#if EV_VERIFY 2838#if EV_VERIFY
2442 int i; 2839 int i;
2443 WL w; 2840 WL w, w2;
2444 2841
2445 assert (activecnt >= -1); 2842 assert (activecnt >= -1);
2446 2843
2447 assert (fdchangemax >= fdchangecnt); 2844 assert (fdchangemax >= fdchangecnt);
2448 for (i = 0; i < fdchangecnt; ++i) 2845 for (i = 0; i < fdchangecnt; ++i)
2449 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2846 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2450 2847
2451 assert (anfdmax >= 0); 2848 assert (anfdmax >= 0);
2452 for (i = 0; i < anfdmax; ++i) 2849 for (i = 0; i < anfdmax; ++i)
2850 {
2851 int j = 0;
2852
2453 for (w = anfds [i].head; w; w = w->next) 2853 for (w = w2 = anfds [i].head; w; w = w->next)
2454 { 2854 {
2455 verify_watcher (EV_A_ (W)w); 2855 verify_watcher (EV_A_ (W)w);
2856
2857 if (j++ & 1)
2858 {
2859 assert (("libev: io watcher list contains a loop", w != w2));
2860 w2 = w2->next;
2861 }
2862
2456 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2863 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2457 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2864 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2458 } 2865 }
2866 }
2459 2867
2460 assert (timermax >= timercnt); 2868 assert (timermax >= timercnt);
2461 verify_heap (EV_A_ timers, timercnt); 2869 verify_heap (EV_A_ timers, timercnt);
2462 2870
2463#if EV_PERIODIC_ENABLE 2871#if EV_PERIODIC_ENABLE
… …
2513#if EV_MULTIPLICITY 2921#if EV_MULTIPLICITY
2514struct ev_loop * ecb_cold 2922struct ev_loop * ecb_cold
2515#else 2923#else
2516int 2924int
2517#endif 2925#endif
2518ev_default_loop (unsigned int flags) 2926ev_default_loop (unsigned int flags) EV_THROW
2519{ 2927{
2520 if (!ev_default_loop_ptr) 2928 if (!ev_default_loop_ptr)
2521 { 2929 {
2522#if EV_MULTIPLICITY 2930#if EV_MULTIPLICITY
2523 EV_P = ev_default_loop_ptr = &default_loop_struct; 2931 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2542 2950
2543 return ev_default_loop_ptr; 2951 return ev_default_loop_ptr;
2544} 2952}
2545 2953
2546void 2954void
2547ev_loop_fork (EV_P) 2955ev_loop_fork (EV_P) EV_THROW
2548{ 2956{
2549 postfork = 1; /* must be in line with ev_default_fork */ 2957 postfork = 1;
2550} 2958}
2551 2959
2552/*****************************************************************************/ 2960/*****************************************************************************/
2553 2961
2554void 2962void
… …
2556{ 2964{
2557 EV_CB_INVOKE ((W)w, revents); 2965 EV_CB_INVOKE ((W)w, revents);
2558} 2966}
2559 2967
2560unsigned int 2968unsigned int
2561ev_pending_count (EV_P) 2969ev_pending_count (EV_P) EV_THROW
2562{ 2970{
2563 int pri; 2971 int pri;
2564 unsigned int count = 0; 2972 unsigned int count = 0;
2565 2973
2566 for (pri = NUMPRI; pri--; ) 2974 for (pri = NUMPRI; pri--; )
… …
2570} 2978}
2571 2979
2572void noinline 2980void noinline
2573ev_invoke_pending (EV_P) 2981ev_invoke_pending (EV_P)
2574{ 2982{
2575 int pri; 2983 pendingpri = NUMPRI;
2576 2984
2577 for (pri = NUMPRI; pri--; ) 2985 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2986 {
2987 --pendingpri;
2988
2578 while (pendingcnt [pri]) 2989 while (pendingcnt [pendingpri])
2579 { 2990 {
2580 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2991 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2581 2992
2582 p->w->pending = 0; 2993 p->w->pending = 0;
2583 EV_CB_INVOKE (p->w, p->events); 2994 EV_CB_INVOKE (p->w, p->events);
2584 EV_FREQUENT_CHECK; 2995 EV_FREQUENT_CHECK;
2585 } 2996 }
2997 }
2586} 2998}
2587 2999
2588#if EV_IDLE_ENABLE 3000#if EV_IDLE_ENABLE
2589/* make idle watchers pending. this handles the "call-idle */ 3001/* make idle watchers pending. this handles the "call-idle */
2590/* only when higher priorities are idle" logic */ 3002/* only when higher priorities are idle" logic */
… …
2680{ 3092{
2681 EV_FREQUENT_CHECK; 3093 EV_FREQUENT_CHECK;
2682 3094
2683 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3095 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2684 { 3096 {
2685 int feed_count = 0;
2686
2687 do 3097 do
2688 { 3098 {
2689 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3099 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2690 3100
2691 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3101 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2825 3235
2826 mn_now = ev_rt_now; 3236 mn_now = ev_rt_now;
2827 } 3237 }
2828} 3238}
2829 3239
2830void 3240int
2831ev_run (EV_P_ int flags) 3241ev_run (EV_P_ int flags)
2832{ 3242{
2833#if EV_FEATURE_API 3243#if EV_FEATURE_API
2834 ++loop_depth; 3244 ++loop_depth;
2835#endif 3245#endif
… …
2948#endif 3358#endif
2949 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3359 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2950 backend_poll (EV_A_ waittime); 3360 backend_poll (EV_A_ waittime);
2951 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3361 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2952 3362
2953 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3363 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2954 3364
3365 ECB_MEMORY_FENCE_ACQUIRE;
2955 if (pipe_write_skipped) 3366 if (pipe_write_skipped)
2956 { 3367 {
2957 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3368 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2958 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3369 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2959 } 3370 }
… …
2992 loop_done = EVBREAK_CANCEL; 3403 loop_done = EVBREAK_CANCEL;
2993 3404
2994#if EV_FEATURE_API 3405#if EV_FEATURE_API
2995 --loop_depth; 3406 --loop_depth;
2996#endif 3407#endif
3408
3409 return activecnt;
2997} 3410}
2998 3411
2999void 3412void
3000ev_break (EV_P_ int how) 3413ev_break (EV_P_ int how) EV_THROW
3001{ 3414{
3002 loop_done = how; 3415 loop_done = how;
3003} 3416}
3004 3417
3005void 3418void
3006ev_ref (EV_P) 3419ev_ref (EV_P) EV_THROW
3007{ 3420{
3008 ++activecnt; 3421 ++activecnt;
3009} 3422}
3010 3423
3011void 3424void
3012ev_unref (EV_P) 3425ev_unref (EV_P) EV_THROW
3013{ 3426{
3014 --activecnt; 3427 --activecnt;
3015} 3428}
3016 3429
3017void 3430void
3018ev_now_update (EV_P) 3431ev_now_update (EV_P) EV_THROW
3019{ 3432{
3020 time_update (EV_A_ 1e100); 3433 time_update (EV_A_ 1e100);
3021} 3434}
3022 3435
3023void 3436void
3024ev_suspend (EV_P) 3437ev_suspend (EV_P) EV_THROW
3025{ 3438{
3026 ev_now_update (EV_A); 3439 ev_now_update (EV_A);
3027} 3440}
3028 3441
3029void 3442void
3030ev_resume (EV_P) 3443ev_resume (EV_P) EV_THROW
3031{ 3444{
3032 ev_tstamp mn_prev = mn_now; 3445 ev_tstamp mn_prev = mn_now;
3033 3446
3034 ev_now_update (EV_A); 3447 ev_now_update (EV_A);
3035 timers_reschedule (EV_A_ mn_now - mn_prev); 3448 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3074 w->pending = 0; 3487 w->pending = 0;
3075 } 3488 }
3076} 3489}
3077 3490
3078int 3491int
3079ev_clear_pending (EV_P_ void *w) 3492ev_clear_pending (EV_P_ void *w) EV_THROW
3080{ 3493{
3081 W w_ = (W)w; 3494 W w_ = (W)w;
3082 int pending = w_->pending; 3495 int pending = w_->pending;
3083 3496
3084 if (expect_true (pending)) 3497 if (expect_true (pending))
… …
3117} 3530}
3118 3531
3119/*****************************************************************************/ 3532/*****************************************************************************/
3120 3533
3121void noinline 3534void noinline
3122ev_io_start (EV_P_ ev_io *w) 3535ev_io_start (EV_P_ ev_io *w) EV_THROW
3123{ 3536{
3124 int fd = w->fd; 3537 int fd = w->fd;
3125 3538
3126 if (expect_false (ev_is_active (w))) 3539 if (expect_false (ev_is_active (w)))
3127 return; 3540 return;
… …
3133 3546
3134 ev_start (EV_A_ (W)w, 1); 3547 ev_start (EV_A_ (W)w, 1);
3135 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3548 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3136 wlist_add (&anfds[fd].head, (WL)w); 3549 wlist_add (&anfds[fd].head, (WL)w);
3137 3550
3551 /* common bug, apparently */
3552 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3553
3138 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3554 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3139 w->events &= ~EV__IOFDSET; 3555 w->events &= ~EV__IOFDSET;
3140 3556
3141 EV_FREQUENT_CHECK; 3557 EV_FREQUENT_CHECK;
3142} 3558}
3143 3559
3144void noinline 3560void noinline
3145ev_io_stop (EV_P_ ev_io *w) 3561ev_io_stop (EV_P_ ev_io *w) EV_THROW
3146{ 3562{
3147 clear_pending (EV_A_ (W)w); 3563 clear_pending (EV_A_ (W)w);
3148 if (expect_false (!ev_is_active (w))) 3564 if (expect_false (!ev_is_active (w)))
3149 return; 3565 return;
3150 3566
… …
3159 3575
3160 EV_FREQUENT_CHECK; 3576 EV_FREQUENT_CHECK;
3161} 3577}
3162 3578
3163void noinline 3579void noinline
3164ev_timer_start (EV_P_ ev_timer *w) 3580ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3165{ 3581{
3166 if (expect_false (ev_is_active (w))) 3582 if (expect_false (ev_is_active (w)))
3167 return; 3583 return;
3168 3584
3169 ev_at (w) += mn_now; 3585 ev_at (w) += mn_now;
… …
3183 3599
3184 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3600 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3185} 3601}
3186 3602
3187void noinline 3603void noinline
3188ev_timer_stop (EV_P_ ev_timer *w) 3604ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3189{ 3605{
3190 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
3192 return; 3608 return;
3193 3609
… …
3213 3629
3214 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
3215} 3631}
3216 3632
3217void noinline 3633void noinline
3218ev_timer_again (EV_P_ ev_timer *w) 3634ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3219{ 3635{
3220 EV_FREQUENT_CHECK; 3636 EV_FREQUENT_CHECK;
3637
3638 clear_pending (EV_A_ (W)w);
3221 3639
3222 if (ev_is_active (w)) 3640 if (ev_is_active (w))
3223 { 3641 {
3224 if (w->repeat) 3642 if (w->repeat)
3225 { 3643 {
… …
3238 3656
3239 EV_FREQUENT_CHECK; 3657 EV_FREQUENT_CHECK;
3240} 3658}
3241 3659
3242ev_tstamp 3660ev_tstamp
3243ev_timer_remaining (EV_P_ ev_timer *w) 3661ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3244{ 3662{
3245 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3663 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3246} 3664}
3247 3665
3248#if EV_PERIODIC_ENABLE 3666#if EV_PERIODIC_ENABLE
3249void noinline 3667void noinline
3250ev_periodic_start (EV_P_ ev_periodic *w) 3668ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3251{ 3669{
3252 if (expect_false (ev_is_active (w))) 3670 if (expect_false (ev_is_active (w)))
3253 return; 3671 return;
3254 3672
3255 if (w->reschedule_cb) 3673 if (w->reschedule_cb)
… …
3275 3693
3276 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3694 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3277} 3695}
3278 3696
3279void noinline 3697void noinline
3280ev_periodic_stop (EV_P_ ev_periodic *w) 3698ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3281{ 3699{
3282 clear_pending (EV_A_ (W)w); 3700 clear_pending (EV_A_ (W)w);
3283 if (expect_false (!ev_is_active (w))) 3701 if (expect_false (!ev_is_active (w)))
3284 return; 3702 return;
3285 3703
… …
3303 3721
3304 EV_FREQUENT_CHECK; 3722 EV_FREQUENT_CHECK;
3305} 3723}
3306 3724
3307void noinline 3725void noinline
3308ev_periodic_again (EV_P_ ev_periodic *w) 3726ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3309{ 3727{
3310 /* TODO: use adjustheap and recalculation */ 3728 /* TODO: use adjustheap and recalculation */
3311 ev_periodic_stop (EV_A_ w); 3729 ev_periodic_stop (EV_A_ w);
3312 ev_periodic_start (EV_A_ w); 3730 ev_periodic_start (EV_A_ w);
3313} 3731}
… …
3318#endif 3736#endif
3319 3737
3320#if EV_SIGNAL_ENABLE 3738#if EV_SIGNAL_ENABLE
3321 3739
3322void noinline 3740void noinline
3323ev_signal_start (EV_P_ ev_signal *w) 3741ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3324{ 3742{
3325 if (expect_false (ev_is_active (w))) 3743 if (expect_false (ev_is_active (w)))
3326 return; 3744 return;
3327 3745
3328 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3746 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3330#if EV_MULTIPLICITY 3748#if EV_MULTIPLICITY
3331 assert (("libev: a signal must not be attached to two different loops", 3749 assert (("libev: a signal must not be attached to two different loops",
3332 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3750 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3333 3751
3334 signals [w->signum - 1].loop = EV_A; 3752 signals [w->signum - 1].loop = EV_A;
3753 ECB_MEMORY_FENCE_RELEASE;
3335#endif 3754#endif
3336 3755
3337 EV_FREQUENT_CHECK; 3756 EV_FREQUENT_CHECK;
3338 3757
3339#if EV_USE_SIGNALFD 3758#if EV_USE_SIGNALFD
… …
3399 3818
3400 EV_FREQUENT_CHECK; 3819 EV_FREQUENT_CHECK;
3401} 3820}
3402 3821
3403void noinline 3822void noinline
3404ev_signal_stop (EV_P_ ev_signal *w) 3823ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3405{ 3824{
3406 clear_pending (EV_A_ (W)w); 3825 clear_pending (EV_A_ (W)w);
3407 if (expect_false (!ev_is_active (w))) 3826 if (expect_false (!ev_is_active (w)))
3408 return; 3827 return;
3409 3828
… …
3440#endif 3859#endif
3441 3860
3442#if EV_CHILD_ENABLE 3861#if EV_CHILD_ENABLE
3443 3862
3444void 3863void
3445ev_child_start (EV_P_ ev_child *w) 3864ev_child_start (EV_P_ ev_child *w) EV_THROW
3446{ 3865{
3447#if EV_MULTIPLICITY 3866#if EV_MULTIPLICITY
3448 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3867 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3449#endif 3868#endif
3450 if (expect_false (ev_is_active (w))) 3869 if (expect_false (ev_is_active (w)))
… …
3457 3876
3458 EV_FREQUENT_CHECK; 3877 EV_FREQUENT_CHECK;
3459} 3878}
3460 3879
3461void 3880void
3462ev_child_stop (EV_P_ ev_child *w) 3881ev_child_stop (EV_P_ ev_child *w) EV_THROW
3463{ 3882{
3464 clear_pending (EV_A_ (W)w); 3883 clear_pending (EV_A_ (W)w);
3465 if (expect_false (!ev_is_active (w))) 3884 if (expect_false (!ev_is_active (w)))
3466 return; 3885 return;
3467 3886
… …
3494# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3913# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3495 3914
3496static void noinline 3915static void noinline
3497infy_add (EV_P_ ev_stat *w) 3916infy_add (EV_P_ ev_stat *w)
3498{ 3917{
3499 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); 3918 w->wd = inotify_add_watch (fs_fd, w->path,
3919 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3920 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3921 | IN_DONT_FOLLOW | IN_MASK_ADD);
3500 3922
3501 if (w->wd >= 0) 3923 if (w->wd >= 0)
3502 { 3924 {
3503 struct statfs sfs; 3925 struct statfs sfs;
3504 3926
… …
3508 3930
3509 if (!fs_2625) 3931 if (!fs_2625)
3510 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3932 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3511 else if (!statfs (w->path, &sfs) 3933 else if (!statfs (w->path, &sfs)
3512 && (sfs.f_type == 0x1373 /* devfs */ 3934 && (sfs.f_type == 0x1373 /* devfs */
3935 || sfs.f_type == 0x4006 /* fat */
3936 || sfs.f_type == 0x4d44 /* msdos */
3513 || sfs.f_type == 0xEF53 /* ext2/3 */ 3937 || sfs.f_type == 0xEF53 /* ext2/3 */
3938 || sfs.f_type == 0x72b6 /* jffs2 */
3939 || sfs.f_type == 0x858458f6 /* ramfs */
3940 || sfs.f_type == 0x5346544e /* ntfs */
3514 || sfs.f_type == 0x3153464a /* jfs */ 3941 || sfs.f_type == 0x3153464a /* jfs */
3942 || sfs.f_type == 0x9123683e /* btrfs */
3515 || sfs.f_type == 0x52654973 /* reiser3 */ 3943 || sfs.f_type == 0x52654973 /* reiser3 */
3516 || sfs.f_type == 0x01021994 /* tempfs */ 3944 || sfs.f_type == 0x01021994 /* tmpfs */
3517 || sfs.f_type == 0x58465342 /* xfs */)) 3945 || sfs.f_type == 0x58465342 /* xfs */))
3518 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3946 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3519 else 3947 else
3520 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3948 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3521 } 3949 }
… …
3634} 4062}
3635 4063
3636inline_size int 4064inline_size int
3637infy_newfd (void) 4065infy_newfd (void)
3638{ 4066{
3639#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4067#if defined IN_CLOEXEC && defined IN_NONBLOCK
3640 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4068 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3641 if (fd >= 0) 4069 if (fd >= 0)
3642 return fd; 4070 return fd;
3643#endif 4071#endif
3644 return inotify_init (); 4072 return inotify_init ();
… …
3719#else 4147#else
3720# define EV_LSTAT(p,b) lstat (p, b) 4148# define EV_LSTAT(p,b) lstat (p, b)
3721#endif 4149#endif
3722 4150
3723void 4151void
3724ev_stat_stat (EV_P_ ev_stat *w) 4152ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3725{ 4153{
3726 if (lstat (w->path, &w->attr) < 0) 4154 if (lstat (w->path, &w->attr) < 0)
3727 w->attr.st_nlink = 0; 4155 w->attr.st_nlink = 0;
3728 else if (!w->attr.st_nlink) 4156 else if (!w->attr.st_nlink)
3729 w->attr.st_nlink = 1; 4157 w->attr.st_nlink = 1;
… …
3768 ev_feed_event (EV_A_ w, EV_STAT); 4196 ev_feed_event (EV_A_ w, EV_STAT);
3769 } 4197 }
3770} 4198}
3771 4199
3772void 4200void
3773ev_stat_start (EV_P_ ev_stat *w) 4201ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3774{ 4202{
3775 if (expect_false (ev_is_active (w))) 4203 if (expect_false (ev_is_active (w)))
3776 return; 4204 return;
3777 4205
3778 ev_stat_stat (EV_A_ w); 4206 ev_stat_stat (EV_A_ w);
… …
3799 4227
3800 EV_FREQUENT_CHECK; 4228 EV_FREQUENT_CHECK;
3801} 4229}
3802 4230
3803void 4231void
3804ev_stat_stop (EV_P_ ev_stat *w) 4232ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3805{ 4233{
3806 clear_pending (EV_A_ (W)w); 4234 clear_pending (EV_A_ (W)w);
3807 if (expect_false (!ev_is_active (w))) 4235 if (expect_false (!ev_is_active (w)))
3808 return; 4236 return;
3809 4237
… …
3825} 4253}
3826#endif 4254#endif
3827 4255
3828#if EV_IDLE_ENABLE 4256#if EV_IDLE_ENABLE
3829void 4257void
3830ev_idle_start (EV_P_ ev_idle *w) 4258ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3831{ 4259{
3832 if (expect_false (ev_is_active (w))) 4260 if (expect_false (ev_is_active (w)))
3833 return; 4261 return;
3834 4262
3835 pri_adjust (EV_A_ (W)w); 4263 pri_adjust (EV_A_ (W)w);
… …
3848 4276
3849 EV_FREQUENT_CHECK; 4277 EV_FREQUENT_CHECK;
3850} 4278}
3851 4279
3852void 4280void
3853ev_idle_stop (EV_P_ ev_idle *w) 4281ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3854{ 4282{
3855 clear_pending (EV_A_ (W)w); 4283 clear_pending (EV_A_ (W)w);
3856 if (expect_false (!ev_is_active (w))) 4284 if (expect_false (!ev_is_active (w)))
3857 return; 4285 return;
3858 4286
… …
3872} 4300}
3873#endif 4301#endif
3874 4302
3875#if EV_PREPARE_ENABLE 4303#if EV_PREPARE_ENABLE
3876void 4304void
3877ev_prepare_start (EV_P_ ev_prepare *w) 4305ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3878{ 4306{
3879 if (expect_false (ev_is_active (w))) 4307 if (expect_false (ev_is_active (w)))
3880 return; 4308 return;
3881 4309
3882 EV_FREQUENT_CHECK; 4310 EV_FREQUENT_CHECK;
… …
3887 4315
3888 EV_FREQUENT_CHECK; 4316 EV_FREQUENT_CHECK;
3889} 4317}
3890 4318
3891void 4319void
3892ev_prepare_stop (EV_P_ ev_prepare *w) 4320ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3893{ 4321{
3894 clear_pending (EV_A_ (W)w); 4322 clear_pending (EV_A_ (W)w);
3895 if (expect_false (!ev_is_active (w))) 4323 if (expect_false (!ev_is_active (w)))
3896 return; 4324 return;
3897 4325
… …
3910} 4338}
3911#endif 4339#endif
3912 4340
3913#if EV_CHECK_ENABLE 4341#if EV_CHECK_ENABLE
3914void 4342void
3915ev_check_start (EV_P_ ev_check *w) 4343ev_check_start (EV_P_ ev_check *w) EV_THROW
3916{ 4344{
3917 if (expect_false (ev_is_active (w))) 4345 if (expect_false (ev_is_active (w)))
3918 return; 4346 return;
3919 4347
3920 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
… …
3925 4353
3926 EV_FREQUENT_CHECK; 4354 EV_FREQUENT_CHECK;
3927} 4355}
3928 4356
3929void 4357void
3930ev_check_stop (EV_P_ ev_check *w) 4358ev_check_stop (EV_P_ ev_check *w) EV_THROW
3931{ 4359{
3932 clear_pending (EV_A_ (W)w); 4360 clear_pending (EV_A_ (W)w);
3933 if (expect_false (!ev_is_active (w))) 4361 if (expect_false (!ev_is_active (w)))
3934 return; 4362 return;
3935 4363
… …
3948} 4376}
3949#endif 4377#endif
3950 4378
3951#if EV_EMBED_ENABLE 4379#if EV_EMBED_ENABLE
3952void noinline 4380void noinline
3953ev_embed_sweep (EV_P_ ev_embed *w) 4381ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3954{ 4382{
3955 ev_run (w->other, EVRUN_NOWAIT); 4383 ev_run (w->other, EVRUN_NOWAIT);
3956} 4384}
3957 4385
3958static void 4386static void
… …
4006 ev_idle_stop (EV_A_ idle); 4434 ev_idle_stop (EV_A_ idle);
4007} 4435}
4008#endif 4436#endif
4009 4437
4010void 4438void
4011ev_embed_start (EV_P_ ev_embed *w) 4439ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4012{ 4440{
4013 if (expect_false (ev_is_active (w))) 4441 if (expect_false (ev_is_active (w)))
4014 return; 4442 return;
4015 4443
4016 { 4444 {
… …
4037 4465
4038 EV_FREQUENT_CHECK; 4466 EV_FREQUENT_CHECK;
4039} 4467}
4040 4468
4041void 4469void
4042ev_embed_stop (EV_P_ ev_embed *w) 4470ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4043{ 4471{
4044 clear_pending (EV_A_ (W)w); 4472 clear_pending (EV_A_ (W)w);
4045 if (expect_false (!ev_is_active (w))) 4473 if (expect_false (!ev_is_active (w)))
4046 return; 4474 return;
4047 4475
… …
4057} 4485}
4058#endif 4486#endif
4059 4487
4060#if EV_FORK_ENABLE 4488#if EV_FORK_ENABLE
4061void 4489void
4062ev_fork_start (EV_P_ ev_fork *w) 4490ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4063{ 4491{
4064 if (expect_false (ev_is_active (w))) 4492 if (expect_false (ev_is_active (w)))
4065 return; 4493 return;
4066 4494
4067 EV_FREQUENT_CHECK; 4495 EV_FREQUENT_CHECK;
… …
4072 4500
4073 EV_FREQUENT_CHECK; 4501 EV_FREQUENT_CHECK;
4074} 4502}
4075 4503
4076void 4504void
4077ev_fork_stop (EV_P_ ev_fork *w) 4505ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4078{ 4506{
4079 clear_pending (EV_A_ (W)w); 4507 clear_pending (EV_A_ (W)w);
4080 if (expect_false (!ev_is_active (w))) 4508 if (expect_false (!ev_is_active (w)))
4081 return; 4509 return;
4082 4510
… …
4095} 4523}
4096#endif 4524#endif
4097 4525
4098#if EV_CLEANUP_ENABLE 4526#if EV_CLEANUP_ENABLE
4099void 4527void
4100ev_cleanup_start (EV_P_ ev_cleanup *w) 4528ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4101{ 4529{
4102 if (expect_false (ev_is_active (w))) 4530 if (expect_false (ev_is_active (w)))
4103 return; 4531 return;
4104 4532
4105 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
… …
4112 ev_unref (EV_A); 4540 ev_unref (EV_A);
4113 EV_FREQUENT_CHECK; 4541 EV_FREQUENT_CHECK;
4114} 4542}
4115 4543
4116void 4544void
4117ev_cleanup_stop (EV_P_ ev_cleanup *w) 4545ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4118{ 4546{
4119 clear_pending (EV_A_ (W)w); 4547 clear_pending (EV_A_ (W)w);
4120 if (expect_false (!ev_is_active (w))) 4548 if (expect_false (!ev_is_active (w)))
4121 return; 4549 return;
4122 4550
… …
4136} 4564}
4137#endif 4565#endif
4138 4566
4139#if EV_ASYNC_ENABLE 4567#if EV_ASYNC_ENABLE
4140void 4568void
4141ev_async_start (EV_P_ ev_async *w) 4569ev_async_start (EV_P_ ev_async *w) EV_THROW
4142{ 4570{
4143 if (expect_false (ev_is_active (w))) 4571 if (expect_false (ev_is_active (w)))
4144 return; 4572 return;
4145 4573
4146 w->sent = 0; 4574 w->sent = 0;
… …
4155 4583
4156 EV_FREQUENT_CHECK; 4584 EV_FREQUENT_CHECK;
4157} 4585}
4158 4586
4159void 4587void
4160ev_async_stop (EV_P_ ev_async *w) 4588ev_async_stop (EV_P_ ev_async *w) EV_THROW
4161{ 4589{
4162 clear_pending (EV_A_ (W)w); 4590 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w))) 4591 if (expect_false (!ev_is_active (w)))
4164 return; 4592 return;
4165 4593
… …
4176 4604
4177 EV_FREQUENT_CHECK; 4605 EV_FREQUENT_CHECK;
4178} 4606}
4179 4607
4180void 4608void
4181ev_async_send (EV_P_ ev_async *w) 4609ev_async_send (EV_P_ ev_async *w) EV_THROW
4182{ 4610{
4183 w->sent = 1; 4611 w->sent = 1;
4184 evpipe_write (EV_A_ &async_pending); 4612 evpipe_write (EV_A_ &async_pending);
4185} 4613}
4186#endif 4614#endif
… …
4223 4651
4224 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4652 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4225} 4653}
4226 4654
4227void 4655void
4228ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4656ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4229{ 4657{
4230 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4658 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4231 4659
4232 if (expect_false (!once)) 4660 if (expect_false (!once))
4233 { 4661 {
… …
4255 4683
4256/*****************************************************************************/ 4684/*****************************************************************************/
4257 4685
4258#if EV_WALK_ENABLE 4686#if EV_WALK_ENABLE
4259void ecb_cold 4687void ecb_cold
4260ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4688ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4261{ 4689{
4262 int i, j; 4690 int i, j;
4263 ev_watcher_list *wl, *wn; 4691 ev_watcher_list *wl, *wn;
4264 4692
4265 if (types & (EV_IO | EV_EMBED)) 4693 if (types & (EV_IO | EV_EMBED))
… …
4371 4799
4372#if EV_MULTIPLICITY 4800#if EV_MULTIPLICITY
4373 #include "ev_wrap.h" 4801 #include "ev_wrap.h"
4374#endif 4802#endif
4375 4803
4376EV_CPP(})
4377

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