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Comparing libev/ev.c (file contents):
Revision 1.395 by root, Wed Aug 24 16:08:17 2011 UTC vs.
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
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 0x00010002
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
519#endif 552#endif
520 553
521/* many compilers define _GNUC_ to some versions but then only implement 554/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions, 555 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers. 556 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so. 557 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 558 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place. 559 * an issue with that they should have done it right in the first place.
527 */ 560 */
528#ifndef ECB_GCC_VERSION 561#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 562 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 563 #define ECB_GCC_VERSION(major,minor) 0
531 #else 564 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 565 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 566 #endif
534#endif 567#endif
535 568
569#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
570#define ECB_C99 (__STDC_VERSION__ >= 199901L)
571#define ECB_C11 (__STDC_VERSION__ >= 201112L)
572#define ECB_CPP (__cplusplus+0)
573#define ECB_CPP11 (__cplusplus >= 201103L)
574
575#if ECB_CPP
576 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END }
579#else
580 #define ECB_EXTERN_C extern
581 #define ECB_EXTERN_C_BEG
582 #define ECB_EXTERN_C_END
583#endif
584
536/*****************************************************************************/ 585/*****************************************************************************/
537 586
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 587/* 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 */ 588/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 589
541#if ECB_NO_THREADS || ECB_NO_SMP 590#if ECB_NO_THREADS
591 #define ECB_NO_SMP 1
592#endif
593
594#if ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 595 #define ECB_MEMORY_FENCE do { } while (0)
543#endif 596#endif
544 597
545#ifndef ECB_MEMORY_FENCE 598#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 600 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 606 #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 */ 607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 611 || 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") 612 #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__ ) \ 613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
624 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
563 #endif 631 #endif
564 #endif 632 #endif
565#endif 633#endif
566 634
567#ifndef ECB_MEMORY_FENCE 635#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
639
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model.
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */
648
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 650 #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 */ 651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 656 #elif defined _WIN32
578 #include <WinNT.h> 657 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
663 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
664 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync ()
666 #endif
667#endif
668
669#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* we assume that these memory fences work on all variables/all memory accesses, */
672 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 681 #endif
581#endif 682#endif
582 683
583#ifndef ECB_MEMORY_FENCE 684#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 685 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 697 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) 698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 699 #endif
599#endif 700#endif
600 701
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 704#endif
604 705
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 708#endif
608 709
609/*****************************************************************************/ 710/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 711
613#if __cplusplus 712#if __cplusplus
614 #define ecb_inline static inline 713 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 714#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 715 #define ecb_inline static __inline__
… …
655#elif ECB_GCC_VERSION(3,0) 754#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 755 #define ecb_decltype(x) __typeof(x)
657#endif 756#endif
658 757
659#define ecb_noinline ecb_attribute ((__noinline__)) 758#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 759#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 760#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 761#define ecb_pure ecb_attribute ((__pure__))
762
763#if ECB_C11
764 #define ecb_noreturn _Noreturn
765#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif
664 768
665#if ECB_GCC_VERSION(4,3) 769#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 770 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 771 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 772 #define ecb_cold ecb_attribute ((__cold__))
… …
759 863
760 return r + ecb_ld32 (x); 864 return r + ecb_ld32 (x);
761 } 865 }
762#endif 866#endif
763 867
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
875{
876 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878}
879
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
882{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8);
887
888 return x;
889}
890
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
893{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
898 x = ( x >> 16 ) | ( x << 16);
899
900 return x;
901}
902
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 903/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 904/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 906ecb_function_ int
768ecb_popcount64 (uint64_t x) 907ecb_popcount64 (uint64_t x)
… …
817 956
818#if ECB_GCC_VERSION(4,5) 957#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 958 #define ecb_unreachable() __builtin_unreachable ()
820#else 959#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 960 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 962 ecb_inline void ecb_unreachable (void) { }
824#endif 963#endif
825 964
826/* try to tell the compiler that some condition is definitely true */ 965/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828 967
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 969ecb_inline unsigned char
831ecb_byteorder_helper (void) 970ecb_byteorder_helper (void)
832{ 971{
833 const uint32_t u = 0x11223344; 972 /* the union code still generates code under pressure in gcc, */
834 return *(unsigned char *)&u; 973 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
981 return 0x44;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
983 return 0x11;
984#else
985 union
986 {
987 uint32_t i;
988 uint8_t c;
989 } u = { 0x11223344 };
990 return u.c;
991#endif
835} 992}
836 993
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 998
842#if ECB_GCC_VERSION(3,0) || ECB_C99 999#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 1001#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif
1004
1005#if __cplusplus
1006 template<typename T>
1007 static inline T ecb_div_rd (T val, T div)
1008 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 }
1011 template<typename T>
1012 static inline T ecb_div_ru (T val, T div)
1013 {
1014 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1015 }
1016#else
1017 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1018 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 1019#endif
847 1020
848#if ecb_cplusplus_does_not_suck 1021#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1022 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N> 1023 template<typename T, int N>
… …
854 } 1027 }
855#else 1028#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif 1030#endif
858 1031
1032/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034
1035/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \
1038 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \
1044 || defined __alpha__ \
1045 || defined __hppa__ \
1046 || defined __ia64__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1048 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */
1050#else
1051 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif
1054
1055#ifndef ECB_NO_LIBM
1056
1057 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1059 ecb_function_ uint32_t
1060 ecb_float_to_binary32 (float x)
1061 {
1062 uint32_t r;
1063
1064 #if ECB_STDFP
1065 memcpy (&r, &x, 4);
1066 #else
1067 /* slow emulation, works for anything but -0 */
1068 uint32_t m;
1069 int e;
1070
1071 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU;
1075
1076 m = frexpf (x, &e) * 0x1000000U;
1077
1078 r = m & 0x80000000U;
1079
1080 if (r)
1081 m = -m;
1082
1083 if (e <= -126)
1084 {
1085 m &= 0xffffffU;
1086 m >>= (-125 - e);
1087 e = -126;
1088 }
1089
1090 r |= (e + 126) << 23;
1091 r |= m & 0x7fffffU;
1092 #endif
1093
1094 return r;
1095 }
1096
1097 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1099 ecb_function_ float
1100 ecb_binary32_to_float (uint32_t x)
1101 {
1102 float r;
1103
1104 #if ECB_STDFP
1105 memcpy (&r, &x, 4);
1106 #else
1107 /* emulation, only works for normals and subnormals and +0 */
1108 int neg = x >> 31;
1109 int e = (x >> 23) & 0xffU;
1110
1111 x &= 0x7fffffU;
1112
1113 if (e)
1114 x |= 0x800000U;
1115 else
1116 e = 1;
1117
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1120
1121 r = neg ? -r : r;
1122 #endif
1123
1124 return r;
1125 }
1126
1127 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1129 ecb_function_ uint64_t
1130 ecb_double_to_binary64 (double x)
1131 {
1132 uint64_t r;
1133
1134 #if ECB_STDFP
1135 memcpy (&r, &x, 8);
1136 #else
1137 /* slow emulation, works for anything but -0 */
1138 uint64_t m;
1139 int e;
1140
1141 if (x == 0e0 ) return 0x0000000000000000U;
1142 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1143 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1144 if (x != x ) return 0X7ff7ffffffffffffU;
1145
1146 m = frexp (x, &e) * 0x20000000000000U;
1147
1148 r = m & 0x8000000000000000;;
1149
1150 if (r)
1151 m = -m;
1152
1153 if (e <= -1022)
1154 {
1155 m &= 0x1fffffffffffffU;
1156 m >>= (-1021 - e);
1157 e = -1022;
1158 }
1159
1160 r |= ((uint64_t)(e + 1022)) << 52;
1161 r |= m & 0xfffffffffffffU;
1162 #endif
1163
1164 return r;
1165 }
1166
1167 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1169 ecb_function_ double
1170 ecb_binary64_to_double (uint64_t x)
1171 {
1172 double r;
1173
1174 #if ECB_STDFP
1175 memcpy (&r, &x, 8);
1176 #else
1177 /* emulation, only works for normals and subnormals and +0 */
1178 int neg = x >> 63;
1179 int e = (x >> 52) & 0x7ffU;
1180
1181 x &= 0xfffffffffffffU;
1182
1183 if (e)
1184 x |= 0x10000000000000U;
1185 else
1186 e = 1;
1187
1188 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1189 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1190
1191 r = neg ? -r : r;
1192 #endif
1193
1194 return r;
1195 }
1196
1197#endif
1198
859#endif 1199#endif
860 1200
861/* ECB.H END */ 1201/* ECB.H END */
862 1202
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1204/* if your architecture doesn't need memory fences, e.g. because it is
1205 * single-cpu/core, or if you use libev in a project that doesn't use libev
1206 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1207 * libev, in which cases the memory fences become nops.
1208 * alternatively, you can remove this #error and link against libpthread,
1209 * which will then provide the memory fences.
1210 */
1211# error "memory fences not defined for your architecture, please report"
1212#endif
1213
864# undef ECB_MEMORY_FENCE 1214#ifndef ECB_MEMORY_FENCE
865# undef ECB_MEMORY_FENCE_ACQUIRE 1215# define ECB_MEMORY_FENCE do { } while (0)
866# undef ECB_MEMORY_FENCE_RELEASE 1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
867#endif 1218#endif
868 1219
869#define expect_false(cond) ecb_expect_false (cond) 1220#define expect_false(cond) ecb_expect_false (cond)
870#define expect_true(cond) ecb_expect_true (cond) 1221#define expect_true(cond) ecb_expect_true (cond)
871#define noinline ecb_noinline 1222#define noinline ecb_noinline
… …
1018{ 1369{
1019 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
1020} 1371}
1021#endif 1372#endif
1022 1373
1023static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
1024 1375
1025void ecb_cold 1376void ecb_cold
1026ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1027{ 1378{
1028 syserr_cb = cb; 1379 syserr_cb = cb;
1029} 1380}
1030 1381
1031static void noinline ecb_cold 1382static void noinline ecb_cold
… …
1049 abort (); 1400 abort ();
1050 } 1401 }
1051} 1402}
1052 1403
1053static void * 1404static void *
1054ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
1055{ 1406{
1056#if __GLIBC__
1057 return realloc (ptr, size);
1058#else
1059 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
1060 * implement realloc (x, 0) (as required by both ansi c-89 and 1408 * implement realloc (x, 0) (as required by both ansi c-89 and
1061 * the single unix specification, so work around them here. 1409 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it,
1411 * despite documenting it otherwise.
1062 */ 1412 */
1063 1413
1064 if (size) 1414 if (size)
1065 return realloc (ptr, size); 1415 return realloc (ptr, size);
1066 1416
1067 free (ptr); 1417 free (ptr);
1068 return 0; 1418 return 0;
1069#endif
1070} 1419}
1071 1420
1072static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1073 1422
1074void ecb_cold 1423void ecb_cold
1075ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1076{ 1425{
1077 alloc = cb; 1426 alloc = cb;
1078} 1427}
1079 1428
1080inline_speed void * 1429inline_speed void *
… …
1168 #undef VAR 1517 #undef VAR
1169 }; 1518 };
1170 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
1171 1520
1172 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
1173 struct ev_loop *ev_default_loop_ptr; 1522 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1174 1523
1175#else 1524#else
1176 1525
1177 ev_tstamp ev_rt_now; 1526 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1178 #define VAR(name,decl) static decl; 1527 #define VAR(name,decl) static decl;
1179 #include "ev_vars.h" 1528 #include "ev_vars.h"
1180 #undef VAR 1529 #undef VAR
1181 1530
1182 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
… …
1197 1546
1198/*****************************************************************************/ 1547/*****************************************************************************/
1199 1548
1200#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
1201ev_tstamp 1550ev_tstamp
1202ev_time (void) 1551ev_time (void) EV_THROW
1203{ 1552{
1204#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
1205 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
1206 { 1555 {
1207 struct timespec ts; 1556 struct timespec ts;
… …
1231 return ev_time (); 1580 return ev_time ();
1232} 1581}
1233 1582
1234#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
1235ev_tstamp 1584ev_tstamp
1236ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
1237{ 1586{
1238 return ev_rt_now; 1587 return ev_rt_now;
1239} 1588}
1240#endif 1589#endif
1241 1590
1242void 1591void
1243ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
1244{ 1593{
1245 if (delay > 0.) 1594 if (delay > 0.)
1246 { 1595 {
1247#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
1248 struct timespec ts; 1597 struct timespec ts;
1249 1598
1250 EV_TS_SET (ts, delay); 1599 EV_TS_SET (ts, delay);
1251 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
1252#elif defined(_WIN32) 1601#elif defined _WIN32
1253 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
1254#else 1603#else
1255 struct timeval tv; 1604 struct timeval tv;
1256 1605
1257 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1276 1625
1277 do 1626 do
1278 ncur <<= 1; 1627 ncur <<= 1;
1279 while (cnt > ncur); 1628 while (cnt > ncur);
1280 1629
1281 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1630 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1282 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1283 { 1632 {
1284 ncur *= elem; 1633 ncur *= elem;
1285 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1634 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1286 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
1329pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
1330{ 1679{
1331} 1680}
1332 1681
1333void noinline 1682void noinline
1334ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1335{ 1684{
1336 W w_ = (W)w; 1685 W w_ = (W)w;
1337 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
1338 1687
1339 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
1343 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
1344 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1345 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
1346 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
1347 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
1348} 1699}
1349 1700
1350inline_speed void 1701inline_speed void
1351feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
1352{ 1703{
… …
1398 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
1399 fd_event_nocheck (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
1400} 1751}
1401 1752
1402void 1753void
1403ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1404{ 1755{
1405 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
1406 fd_event_nocheck (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
1407} 1758}
1408 1759
… …
1727static void noinline ecb_cold 2078static void noinline ecb_cold
1728evpipe_init (EV_P) 2079evpipe_init (EV_P)
1729{ 2080{
1730 if (!ev_is_active (&pipe_w)) 2081 if (!ev_is_active (&pipe_w))
1731 { 2082 {
2083 int fds [2];
2084
1732# if EV_USE_EVENTFD 2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
1733 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1734 if (evfd < 0 && errno == EINVAL) 2088 if (fds [1] < 0 && errno == EINVAL)
1735 evfd = eventfd (0, 0); 2089 fds [1] = eventfd (0, 0);
1736 2090
1737 if (evfd >= 0) 2091 if (fds [1] < 0)
2092# endif
1738 { 2093 {
2094 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe");
2096
2097 fd_intern (fds [0]);
2098 }
2099
2100 fd_intern (fds [1]);
2101
1739 evpipe [0] = -1; 2102 evpipe [0] = fds [0];
1740 fd_intern (evfd); /* doing it twice doesn't hurt */ 2103
1741 ev_io_set (&pipe_w, evfd, EV_READ); 2104 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */
2106 else
2107 {
2108 /* on subsequent calls, do not change evpipe [1] */
2109 /* so that evpipe_write can always rely on its value. */
2110 /* this branch does not do anything sensible on windows, */
2111 /* so must not be executed on windows */
2112
2113 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]);
2115 }
2116
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 }
2121}
2122
2123inline_speed void
2124evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2125{
2126 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2127
2128 if (expect_true (*flag))
2129 return;
2130
2131 *flag = 1;
2132 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2133
2134 pipe_write_skipped = 1;
2135
2136 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2137
2138 if (pipe_write_wanted)
2139 {
2140 int old_errno;
2141
2142 pipe_write_skipped = 0;
2143 ECB_MEMORY_FENCE_RELEASE;
2144
2145 old_errno = errno; /* save errno because write will clobber it */
2146
2147#if EV_USE_EVENTFD
2148 if (evpipe [0] < 0)
2149 {
2150 uint64_t counter = 1;
2151 write (evpipe [1], &counter, sizeof (uint64_t));
1742 } 2152 }
1743 else 2153 else
1744# endif 2154#endif
1745 { 2155 {
1746 while (pipe (evpipe)) 2156#ifdef _WIN32
1747 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1748 2158 DWORD sent;
1749 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1750 fd_intern (evpipe [1]); 2160 buf.len = 1;
1751 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1752 } 2162#else
1753
1754 ev_io_start (EV_A_ &pipe_w);
1755 ev_unref (EV_A); /* watcher should not keep loop alive */
1756 }
1757}
1758
1759inline_speed void
1760evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1761{
1762 if (expect_true (*flag))
1763 return;
1764
1765 *flag = 1;
1766
1767 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1768
1769 pipe_write_skipped = 1;
1770
1771 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1772
1773 if (pipe_write_wanted)
1774 {
1775 int old_errno;
1776
1777 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1778
1779 old_errno = errno; /* save errno because write will clobber it */
1780
1781#if EV_USE_EVENTFD
1782 if (evfd >= 0)
1783 {
1784 uint64_t counter = 1;
1785 write (evfd, &counter, sizeof (uint64_t));
1786 }
1787 else
1788#endif
1789 {
1790 /* win32 people keep sending patches that change this write() to send() */
1791 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1792 /* so when you think this write should be a send instead, please find out */
1793 /* where your send() is from - it's definitely not the microsoft send, and */
1794 /* tell me. thank you. */
1795 write (evpipe [1], &(evpipe [1]), 1); 2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1796 } 2165 }
1797 2166
1798 errno = old_errno; 2167 errno = old_errno;
1799 } 2168 }
1800} 2169}
… …
1807 int i; 2176 int i;
1808 2177
1809 if (revents & EV_READ) 2178 if (revents & EV_READ)
1810 { 2179 {
1811#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1812 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1813 { 2182 {
1814 uint64_t counter; 2183 uint64_t counter;
1815 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1816 } 2185 }
1817 else 2186 else
1818#endif 2187#endif
1819 { 2188 {
1820 char dummy; 2189 char dummy[4];
1821 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2190#ifdef _WIN32
2191 WSABUF buf;
2192 DWORD recvd;
2193 DWORD flags = 0;
2194 buf.buf = dummy;
2195 buf.len = sizeof (dummy);
2196 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2197#else
1822 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
1823 } 2200 }
1824 } 2201 }
1825 2202
1826 pipe_write_skipped = 0; 2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1827 2206
1828#if EV_SIGNAL_ENABLE 2207#if EV_SIGNAL_ENABLE
1829 if (sig_pending) 2208 if (sig_pending)
1830 { 2209 {
1831 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1832 2213
1833 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1834 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1835 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1836 } 2217 }
… …
1838 2219
1839#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1840 if (async_pending) 2221 if (async_pending)
1841 { 2222 {
1842 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1843 2226
1844 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1845 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1846 { 2229 {
1847 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1848 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1849 } 2233 }
1850 } 2234 }
1851#endif 2235#endif
1852} 2236}
1853 2237
1854/*****************************************************************************/ 2238/*****************************************************************************/
1855 2239
1856void 2240void
1857ev_feed_signal (int signum) 2241ev_feed_signal (int signum) EV_THROW
1858{ 2242{
1859#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
2244 ECB_MEMORY_FENCE_ACQUIRE;
1860 EV_P = signals [signum - 1].loop; 2245 EV_P = signals [signum - 1].loop;
1861 2246
1862 if (!EV_A) 2247 if (!EV_A)
1863 return; 2248 return;
1864#endif 2249#endif
1865 2250
1866 if (!ev_active (&pipe_w))
1867 return;
1868
1869 signals [signum - 1].pending = 1; 2251 signals [signum - 1].pending = 1;
1870 evpipe_write (EV_A_ &sig_pending); 2252 evpipe_write (EV_A_ &sig_pending);
1871} 2253}
1872 2254
1873static void 2255static void
… …
1879 2261
1880 ev_feed_signal (signum); 2262 ev_feed_signal (signum);
1881} 2263}
1882 2264
1883void noinline 2265void noinline
1884ev_feed_signal_event (EV_P_ int signum) 2266ev_feed_signal_event (EV_P_ int signum) EV_THROW
1885{ 2267{
1886 WL w; 2268 WL w;
1887 2269
1888 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2270 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1889 return; 2271 return;
1890 2272
1891 --signum; 2273 --signum;
1892 2274
1893#if EV_MULTIPLICITY 2275#if EV_MULTIPLICITY
… …
1897 if (expect_false (signals [signum].loop != EV_A)) 2279 if (expect_false (signals [signum].loop != EV_A))
1898 return; 2280 return;
1899#endif 2281#endif
1900 2282
1901 signals [signum].pending = 0; 2283 signals [signum].pending = 0;
2284 ECB_MEMORY_FENCE_RELEASE;
1902 2285
1903 for (w = signals [signum].head; w; w = w->next) 2286 for (w = signals [signum].head; w; w = w->next)
1904 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2287 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1905} 2288}
1906 2289
… …
2005#if EV_USE_SELECT 2388#if EV_USE_SELECT
2006# include "ev_select.c" 2389# include "ev_select.c"
2007#endif 2390#endif
2008 2391
2009int ecb_cold 2392int ecb_cold
2010ev_version_major (void) 2393ev_version_major (void) EV_THROW
2011{ 2394{
2012 return EV_VERSION_MAJOR; 2395 return EV_VERSION_MAJOR;
2013} 2396}
2014 2397
2015int ecb_cold 2398int ecb_cold
2016ev_version_minor (void) 2399ev_version_minor (void) EV_THROW
2017{ 2400{
2018 return EV_VERSION_MINOR; 2401 return EV_VERSION_MINOR;
2019} 2402}
2020 2403
2021/* return true if we are running with elevated privileges and should ignore env variables */ 2404/* return true if we are running with elevated privileges and should ignore env variables */
… …
2029 || getgid () != getegid (); 2412 || getgid () != getegid ();
2030#endif 2413#endif
2031} 2414}
2032 2415
2033unsigned int ecb_cold 2416unsigned int ecb_cold
2034ev_supported_backends (void) 2417ev_supported_backends (void) EV_THROW
2035{ 2418{
2036 unsigned int flags = 0; 2419 unsigned int flags = 0;
2037 2420
2038 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2039 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2043 2426
2044 return flags; 2427 return flags;
2045} 2428}
2046 2429
2047unsigned int ecb_cold 2430unsigned int ecb_cold
2048ev_recommended_backends (void) 2431ev_recommended_backends (void) EV_THROW
2049{ 2432{
2050 unsigned int flags = ev_supported_backends (); 2433 unsigned int flags = ev_supported_backends ();
2051 2434
2052#ifndef __NetBSD__ 2435#ifndef __NetBSD__
2053 /* kqueue is borked on everything but netbsd apparently */ 2436 /* kqueue is borked on everything but netbsd apparently */
… …
2065 2448
2066 return flags; 2449 return flags;
2067} 2450}
2068 2451
2069unsigned int ecb_cold 2452unsigned int ecb_cold
2070ev_embeddable_backends (void) 2453ev_embeddable_backends (void) EV_THROW
2071{ 2454{
2072 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2455 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2073 2456
2074 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2457 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2075 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2458 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2077 2460
2078 return flags; 2461 return flags;
2079} 2462}
2080 2463
2081unsigned int 2464unsigned int
2082ev_backend (EV_P) 2465ev_backend (EV_P) EV_THROW
2083{ 2466{
2084 return backend; 2467 return backend;
2085} 2468}
2086 2469
2087#if EV_FEATURE_API 2470#if EV_FEATURE_API
2088unsigned int 2471unsigned int
2089ev_iteration (EV_P) 2472ev_iteration (EV_P) EV_THROW
2090{ 2473{
2091 return loop_count; 2474 return loop_count;
2092} 2475}
2093 2476
2094unsigned int 2477unsigned int
2095ev_depth (EV_P) 2478ev_depth (EV_P) EV_THROW
2096{ 2479{
2097 return loop_depth; 2480 return loop_depth;
2098} 2481}
2099 2482
2100void 2483void
2101ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2484ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2102{ 2485{
2103 io_blocktime = interval; 2486 io_blocktime = interval;
2104} 2487}
2105 2488
2106void 2489void
2107ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2490ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2108{ 2491{
2109 timeout_blocktime = interval; 2492 timeout_blocktime = interval;
2110} 2493}
2111 2494
2112void 2495void
2113ev_set_userdata (EV_P_ void *data) 2496ev_set_userdata (EV_P_ void *data) EV_THROW
2114{ 2497{
2115 userdata = data; 2498 userdata = data;
2116} 2499}
2117 2500
2118void * 2501void *
2119ev_userdata (EV_P) 2502ev_userdata (EV_P) EV_THROW
2120{ 2503{
2121 return userdata; 2504 return userdata;
2122} 2505}
2123 2506
2124void 2507void
2125ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2508ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2126{ 2509{
2127 invoke_cb = invoke_pending_cb; 2510 invoke_cb = invoke_pending_cb;
2128} 2511}
2129 2512
2130void 2513void
2131ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2514ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2132{ 2515{
2133 release_cb = release; 2516 release_cb = release;
2134 acquire_cb = acquire; 2517 acquire_cb = acquire;
2135} 2518}
2136#endif 2519#endif
2137 2520
2138/* initialise a loop structure, must be zero-initialised */ 2521/* initialise a loop structure, must be zero-initialised */
2139static void noinline ecb_cold 2522static void noinline ecb_cold
2140loop_init (EV_P_ unsigned int flags) 2523loop_init (EV_P_ unsigned int flags) EV_THROW
2141{ 2524{
2142 if (!backend) 2525 if (!backend)
2143 { 2526 {
2144 origflags = flags; 2527 origflags = flags;
2145 2528
… …
2190#if EV_ASYNC_ENABLE 2573#if EV_ASYNC_ENABLE
2191 async_pending = 0; 2574 async_pending = 0;
2192#endif 2575#endif
2193 pipe_write_skipped = 0; 2576 pipe_write_skipped = 0;
2194 pipe_write_wanted = 0; 2577 pipe_write_wanted = 0;
2578 evpipe [0] = -1;
2579 evpipe [1] = -1;
2195#if EV_USE_INOTIFY 2580#if EV_USE_INOTIFY
2196 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2581 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2197#endif 2582#endif
2198#if EV_USE_SIGNALFD 2583#if EV_USE_SIGNALFD
2199 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2584 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2250 EV_INVOKE_PENDING; 2635 EV_INVOKE_PENDING;
2251 } 2636 }
2252#endif 2637#endif
2253 2638
2254#if EV_CHILD_ENABLE 2639#if EV_CHILD_ENABLE
2255 if (ev_is_active (&childev)) 2640 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2256 { 2641 {
2257 ev_ref (EV_A); /* child watcher */ 2642 ev_ref (EV_A); /* child watcher */
2258 ev_signal_stop (EV_A_ &childev); 2643 ev_signal_stop (EV_A_ &childev);
2259 } 2644 }
2260#endif 2645#endif
… …
2262 if (ev_is_active (&pipe_w)) 2647 if (ev_is_active (&pipe_w))
2263 { 2648 {
2264 /*ev_ref (EV_A);*/ 2649 /*ev_ref (EV_A);*/
2265 /*ev_io_stop (EV_A_ &pipe_w);*/ 2650 /*ev_io_stop (EV_A_ &pipe_w);*/
2266 2651
2267#if EV_USE_EVENTFD
2268 if (evfd >= 0)
2269 close (evfd);
2270#endif
2271
2272 if (evpipe [0] >= 0)
2273 {
2274 EV_WIN32_CLOSE_FD (evpipe [0]); 2652 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2275 EV_WIN32_CLOSE_FD (evpipe [1]); 2653 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2276 }
2277 } 2654 }
2278 2655
2279#if EV_USE_SIGNALFD 2656#if EV_USE_SIGNALFD
2280 if (ev_is_active (&sigfd_w)) 2657 if (ev_is_active (&sigfd_w))
2281 close (sigfd); 2658 close (sigfd);
… …
2367#endif 2744#endif
2368#if EV_USE_INOTIFY 2745#if EV_USE_INOTIFY
2369 infy_fork (EV_A); 2746 infy_fork (EV_A);
2370#endif 2747#endif
2371 2748
2749#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2372 if (ev_is_active (&pipe_w)) 2750 if (ev_is_active (&pipe_w))
2373 { 2751 {
2374 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2752 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2375 2753
2376 ev_ref (EV_A); 2754 ev_ref (EV_A);
2377 ev_io_stop (EV_A_ &pipe_w); 2755 ev_io_stop (EV_A_ &pipe_w);
2378 2756
2379#if EV_USE_EVENTFD
2380 if (evfd >= 0)
2381 close (evfd);
2382#endif
2383
2384 if (evpipe [0] >= 0) 2757 if (evpipe [0] >= 0)
2385 {
2386 EV_WIN32_CLOSE_FD (evpipe [0]); 2758 EV_WIN32_CLOSE_FD (evpipe [0]);
2387 EV_WIN32_CLOSE_FD (evpipe [1]);
2388 }
2389 2759
2390#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2391 evpipe_init (EV_A); 2760 evpipe_init (EV_A);
2392 /* now iterate over everything, in case we missed something */ 2761 /* iterate over everything, in case we missed something before */
2393 pipecb (EV_A_ &pipe_w, EV_READ); 2762 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2394#endif
2395 } 2763 }
2764#endif
2396 2765
2397 postfork = 0; 2766 postfork = 0;
2398} 2767}
2399 2768
2400#if EV_MULTIPLICITY 2769#if EV_MULTIPLICITY
2401 2770
2402struct ev_loop * ecb_cold 2771struct ev_loop * ecb_cold
2403ev_loop_new (unsigned int flags) 2772ev_loop_new (unsigned int flags) EV_THROW
2404{ 2773{
2405 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2774 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2406 2775
2407 memset (EV_A, 0, sizeof (struct ev_loop)); 2776 memset (EV_A, 0, sizeof (struct ev_loop));
2408 loop_init (EV_A_ flags); 2777 loop_init (EV_A_ flags);
… …
2452} 2821}
2453#endif 2822#endif
2454 2823
2455#if EV_FEATURE_API 2824#if EV_FEATURE_API
2456void ecb_cold 2825void ecb_cold
2457ev_verify (EV_P) 2826ev_verify (EV_P) EV_THROW
2458{ 2827{
2459#if EV_VERIFY 2828#if EV_VERIFY
2460 int i; 2829 int i;
2461 WL w; 2830 WL w, w2;
2462 2831
2463 assert (activecnt >= -1); 2832 assert (activecnt >= -1);
2464 2833
2465 assert (fdchangemax >= fdchangecnt); 2834 assert (fdchangemax >= fdchangecnt);
2466 for (i = 0; i < fdchangecnt; ++i) 2835 for (i = 0; i < fdchangecnt; ++i)
2467 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2836 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2468 2837
2469 assert (anfdmax >= 0); 2838 assert (anfdmax >= 0);
2470 for (i = 0; i < anfdmax; ++i) 2839 for (i = 0; i < anfdmax; ++i)
2840 {
2841 int j = 0;
2842
2471 for (w = anfds [i].head; w; w = w->next) 2843 for (w = w2 = anfds [i].head; w; w = w->next)
2472 { 2844 {
2473 verify_watcher (EV_A_ (W)w); 2845 verify_watcher (EV_A_ (W)w);
2846
2847 if (j++ & 1)
2848 {
2849 assert (("libev: io watcher list contains a loop", w != w2));
2850 w2 = w2->next;
2851 }
2852
2474 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2853 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2475 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2854 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2476 } 2855 }
2856 }
2477 2857
2478 assert (timermax >= timercnt); 2858 assert (timermax >= timercnt);
2479 verify_heap (EV_A_ timers, timercnt); 2859 verify_heap (EV_A_ timers, timercnt);
2480 2860
2481#if EV_PERIODIC_ENABLE 2861#if EV_PERIODIC_ENABLE
… …
2531#if EV_MULTIPLICITY 2911#if EV_MULTIPLICITY
2532struct ev_loop * ecb_cold 2912struct ev_loop * ecb_cold
2533#else 2913#else
2534int 2914int
2535#endif 2915#endif
2536ev_default_loop (unsigned int flags) 2916ev_default_loop (unsigned int flags) EV_THROW
2537{ 2917{
2538 if (!ev_default_loop_ptr) 2918 if (!ev_default_loop_ptr)
2539 { 2919 {
2540#if EV_MULTIPLICITY 2920#if EV_MULTIPLICITY
2541 EV_P = ev_default_loop_ptr = &default_loop_struct; 2921 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2560 2940
2561 return ev_default_loop_ptr; 2941 return ev_default_loop_ptr;
2562} 2942}
2563 2943
2564void 2944void
2565ev_loop_fork (EV_P) 2945ev_loop_fork (EV_P) EV_THROW
2566{ 2946{
2567 postfork = 1; /* must be in line with ev_default_fork */ 2947 postfork = 1;
2568} 2948}
2569 2949
2570/*****************************************************************************/ 2950/*****************************************************************************/
2571 2951
2572void 2952void
… …
2574{ 2954{
2575 EV_CB_INVOKE ((W)w, revents); 2955 EV_CB_INVOKE ((W)w, revents);
2576} 2956}
2577 2957
2578unsigned int 2958unsigned int
2579ev_pending_count (EV_P) 2959ev_pending_count (EV_P) EV_THROW
2580{ 2960{
2581 int pri; 2961 int pri;
2582 unsigned int count = 0; 2962 unsigned int count = 0;
2583 2963
2584 for (pri = NUMPRI; pri--; ) 2964 for (pri = NUMPRI; pri--; )
… …
2588} 2968}
2589 2969
2590void noinline 2970void noinline
2591ev_invoke_pending (EV_P) 2971ev_invoke_pending (EV_P)
2592{ 2972{
2593 int pri; 2973 pendingpri = NUMPRI;
2594 2974
2595 for (pri = NUMPRI; pri--; ) 2975 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2976 {
2977 --pendingpri;
2978
2596 while (pendingcnt [pri]) 2979 while (pendingcnt [pendingpri])
2597 { 2980 {
2598 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2981 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2599 2982
2600 p->w->pending = 0; 2983 p->w->pending = 0;
2601 EV_CB_INVOKE (p->w, p->events); 2984 EV_CB_INVOKE (p->w, p->events);
2602 EV_FREQUENT_CHECK; 2985 EV_FREQUENT_CHECK;
2603 } 2986 }
2987 }
2604} 2988}
2605 2989
2606#if EV_IDLE_ENABLE 2990#if EV_IDLE_ENABLE
2607/* make idle watchers pending. this handles the "call-idle */ 2991/* make idle watchers pending. this handles the "call-idle */
2608/* only when higher priorities are idle" logic */ 2992/* only when higher priorities are idle" logic */
… …
2698{ 3082{
2699 EV_FREQUENT_CHECK; 3083 EV_FREQUENT_CHECK;
2700 3084
2701 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3085 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2702 { 3086 {
2703 int feed_count = 0;
2704
2705 do 3087 do
2706 { 3088 {
2707 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3089 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2708 3090
2709 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3091 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2843 3225
2844 mn_now = ev_rt_now; 3226 mn_now = ev_rt_now;
2845 } 3227 }
2846} 3228}
2847 3229
2848void 3230int
2849ev_run (EV_P_ int flags) 3231ev_run (EV_P_ int flags)
2850{ 3232{
2851#if EV_FEATURE_API 3233#if EV_FEATURE_API
2852 ++loop_depth; 3234 ++loop_depth;
2853#endif 3235#endif
… …
2966#endif 3348#endif
2967 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3349 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2968 backend_poll (EV_A_ waittime); 3350 backend_poll (EV_A_ waittime);
2969 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3351 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2970 3352
2971 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3353 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2972 3354
3355 ECB_MEMORY_FENCE_ACQUIRE;
2973 if (pipe_write_skipped) 3356 if (pipe_write_skipped)
2974 { 3357 {
2975 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3358 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2976 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3359 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2977 } 3360 }
… …
3010 loop_done = EVBREAK_CANCEL; 3393 loop_done = EVBREAK_CANCEL;
3011 3394
3012#if EV_FEATURE_API 3395#if EV_FEATURE_API
3013 --loop_depth; 3396 --loop_depth;
3014#endif 3397#endif
3398
3399 return activecnt;
3015} 3400}
3016 3401
3017void 3402void
3018ev_break (EV_P_ int how) 3403ev_break (EV_P_ int how) EV_THROW
3019{ 3404{
3020 loop_done = how; 3405 loop_done = how;
3021} 3406}
3022 3407
3023void 3408void
3024ev_ref (EV_P) 3409ev_ref (EV_P) EV_THROW
3025{ 3410{
3026 ++activecnt; 3411 ++activecnt;
3027} 3412}
3028 3413
3029void 3414void
3030ev_unref (EV_P) 3415ev_unref (EV_P) EV_THROW
3031{ 3416{
3032 --activecnt; 3417 --activecnt;
3033} 3418}
3034 3419
3035void 3420void
3036ev_now_update (EV_P) 3421ev_now_update (EV_P) EV_THROW
3037{ 3422{
3038 time_update (EV_A_ 1e100); 3423 time_update (EV_A_ 1e100);
3039} 3424}
3040 3425
3041void 3426void
3042ev_suspend (EV_P) 3427ev_suspend (EV_P) EV_THROW
3043{ 3428{
3044 ev_now_update (EV_A); 3429 ev_now_update (EV_A);
3045} 3430}
3046 3431
3047void 3432void
3048ev_resume (EV_P) 3433ev_resume (EV_P) EV_THROW
3049{ 3434{
3050 ev_tstamp mn_prev = mn_now; 3435 ev_tstamp mn_prev = mn_now;
3051 3436
3052 ev_now_update (EV_A); 3437 ev_now_update (EV_A);
3053 timers_reschedule (EV_A_ mn_now - mn_prev); 3438 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3092 w->pending = 0; 3477 w->pending = 0;
3093 } 3478 }
3094} 3479}
3095 3480
3096int 3481int
3097ev_clear_pending (EV_P_ void *w) 3482ev_clear_pending (EV_P_ void *w) EV_THROW
3098{ 3483{
3099 W w_ = (W)w; 3484 W w_ = (W)w;
3100 int pending = w_->pending; 3485 int pending = w_->pending;
3101 3486
3102 if (expect_true (pending)) 3487 if (expect_true (pending))
… …
3135} 3520}
3136 3521
3137/*****************************************************************************/ 3522/*****************************************************************************/
3138 3523
3139void noinline 3524void noinline
3140ev_io_start (EV_P_ ev_io *w) 3525ev_io_start (EV_P_ ev_io *w) EV_THROW
3141{ 3526{
3142 int fd = w->fd; 3527 int fd = w->fd;
3143 3528
3144 if (expect_false (ev_is_active (w))) 3529 if (expect_false (ev_is_active (w)))
3145 return; 3530 return;
… …
3151 3536
3152 ev_start (EV_A_ (W)w, 1); 3537 ev_start (EV_A_ (W)w, 1);
3153 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3538 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3154 wlist_add (&anfds[fd].head, (WL)w); 3539 wlist_add (&anfds[fd].head, (WL)w);
3155 3540
3541 /* common bug, apparently */
3542 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3543
3156 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3544 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3157 w->events &= ~EV__IOFDSET; 3545 w->events &= ~EV__IOFDSET;
3158 3546
3159 EV_FREQUENT_CHECK; 3547 EV_FREQUENT_CHECK;
3160} 3548}
3161 3549
3162void noinline 3550void noinline
3163ev_io_stop (EV_P_ ev_io *w) 3551ev_io_stop (EV_P_ ev_io *w) EV_THROW
3164{ 3552{
3165 clear_pending (EV_A_ (W)w); 3553 clear_pending (EV_A_ (W)w);
3166 if (expect_false (!ev_is_active (w))) 3554 if (expect_false (!ev_is_active (w)))
3167 return; 3555 return;
3168 3556
… …
3177 3565
3178 EV_FREQUENT_CHECK; 3566 EV_FREQUENT_CHECK;
3179} 3567}
3180 3568
3181void noinline 3569void noinline
3182ev_timer_start (EV_P_ ev_timer *w) 3570ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3183{ 3571{
3184 if (expect_false (ev_is_active (w))) 3572 if (expect_false (ev_is_active (w)))
3185 return; 3573 return;
3186 3574
3187 ev_at (w) += mn_now; 3575 ev_at (w) += mn_now;
… …
3201 3589
3202 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3590 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3203} 3591}
3204 3592
3205void noinline 3593void noinline
3206ev_timer_stop (EV_P_ ev_timer *w) 3594ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3207{ 3595{
3208 clear_pending (EV_A_ (W)w); 3596 clear_pending (EV_A_ (W)w);
3209 if (expect_false (!ev_is_active (w))) 3597 if (expect_false (!ev_is_active (w)))
3210 return; 3598 return;
3211 3599
… …
3231 3619
3232 EV_FREQUENT_CHECK; 3620 EV_FREQUENT_CHECK;
3233} 3621}
3234 3622
3235void noinline 3623void noinline
3236ev_timer_again (EV_P_ ev_timer *w) 3624ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3237{ 3625{
3238 EV_FREQUENT_CHECK; 3626 EV_FREQUENT_CHECK;
3627
3628 clear_pending (EV_A_ (W)w);
3239 3629
3240 if (ev_is_active (w)) 3630 if (ev_is_active (w))
3241 { 3631 {
3242 if (w->repeat) 3632 if (w->repeat)
3243 { 3633 {
… …
3256 3646
3257 EV_FREQUENT_CHECK; 3647 EV_FREQUENT_CHECK;
3258} 3648}
3259 3649
3260ev_tstamp 3650ev_tstamp
3261ev_timer_remaining (EV_P_ ev_timer *w) 3651ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3262{ 3652{
3263 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3653 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3264} 3654}
3265 3655
3266#if EV_PERIODIC_ENABLE 3656#if EV_PERIODIC_ENABLE
3267void noinline 3657void noinline
3268ev_periodic_start (EV_P_ ev_periodic *w) 3658ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3269{ 3659{
3270 if (expect_false (ev_is_active (w))) 3660 if (expect_false (ev_is_active (w)))
3271 return; 3661 return;
3272 3662
3273 if (w->reschedule_cb) 3663 if (w->reschedule_cb)
… …
3293 3683
3294 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3684 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3295} 3685}
3296 3686
3297void noinline 3687void noinline
3298ev_periodic_stop (EV_P_ ev_periodic *w) 3688ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3299{ 3689{
3300 clear_pending (EV_A_ (W)w); 3690 clear_pending (EV_A_ (W)w);
3301 if (expect_false (!ev_is_active (w))) 3691 if (expect_false (!ev_is_active (w)))
3302 return; 3692 return;
3303 3693
… …
3321 3711
3322 EV_FREQUENT_CHECK; 3712 EV_FREQUENT_CHECK;
3323} 3713}
3324 3714
3325void noinline 3715void noinline
3326ev_periodic_again (EV_P_ ev_periodic *w) 3716ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3327{ 3717{
3328 /* TODO: use adjustheap and recalculation */ 3718 /* TODO: use adjustheap and recalculation */
3329 ev_periodic_stop (EV_A_ w); 3719 ev_periodic_stop (EV_A_ w);
3330 ev_periodic_start (EV_A_ w); 3720 ev_periodic_start (EV_A_ w);
3331} 3721}
… …
3336#endif 3726#endif
3337 3727
3338#if EV_SIGNAL_ENABLE 3728#if EV_SIGNAL_ENABLE
3339 3729
3340void noinline 3730void noinline
3341ev_signal_start (EV_P_ ev_signal *w) 3731ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3342{ 3732{
3343 if (expect_false (ev_is_active (w))) 3733 if (expect_false (ev_is_active (w)))
3344 return; 3734 return;
3345 3735
3346 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3348#if EV_MULTIPLICITY 3738#if EV_MULTIPLICITY
3349 assert (("libev: a signal must not be attached to two different loops", 3739 assert (("libev: a signal must not be attached to two different loops",
3350 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3740 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3351 3741
3352 signals [w->signum - 1].loop = EV_A; 3742 signals [w->signum - 1].loop = EV_A;
3743 ECB_MEMORY_FENCE_RELEASE;
3353#endif 3744#endif
3354 3745
3355 EV_FREQUENT_CHECK; 3746 EV_FREQUENT_CHECK;
3356 3747
3357#if EV_USE_SIGNALFD 3748#if EV_USE_SIGNALFD
… …
3417 3808
3418 EV_FREQUENT_CHECK; 3809 EV_FREQUENT_CHECK;
3419} 3810}
3420 3811
3421void noinline 3812void noinline
3422ev_signal_stop (EV_P_ ev_signal *w) 3813ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3423{ 3814{
3424 clear_pending (EV_A_ (W)w); 3815 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 3816 if (expect_false (!ev_is_active (w)))
3426 return; 3817 return;
3427 3818
… …
3458#endif 3849#endif
3459 3850
3460#if EV_CHILD_ENABLE 3851#if EV_CHILD_ENABLE
3461 3852
3462void 3853void
3463ev_child_start (EV_P_ ev_child *w) 3854ev_child_start (EV_P_ ev_child *w) EV_THROW
3464{ 3855{
3465#if EV_MULTIPLICITY 3856#if EV_MULTIPLICITY
3466 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3857 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3467#endif 3858#endif
3468 if (expect_false (ev_is_active (w))) 3859 if (expect_false (ev_is_active (w)))
… …
3475 3866
3476 EV_FREQUENT_CHECK; 3867 EV_FREQUENT_CHECK;
3477} 3868}
3478 3869
3479void 3870void
3480ev_child_stop (EV_P_ ev_child *w) 3871ev_child_stop (EV_P_ ev_child *w) EV_THROW
3481{ 3872{
3482 clear_pending (EV_A_ (W)w); 3873 clear_pending (EV_A_ (W)w);
3483 if (expect_false (!ev_is_active (w))) 3874 if (expect_false (!ev_is_active (w)))
3484 return; 3875 return;
3485 3876
… …
3512# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3903# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3513 3904
3514static void noinline 3905static void noinline
3515infy_add (EV_P_ ev_stat *w) 3906infy_add (EV_P_ ev_stat *w)
3516{ 3907{
3517 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3908 w->wd = inotify_add_watch (fs_fd, w->path,
3909 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3911 | IN_DONT_FOLLOW | IN_MASK_ADD);
3518 3912
3519 if (w->wd >= 0) 3913 if (w->wd >= 0)
3520 { 3914 {
3521 struct statfs sfs; 3915 struct statfs sfs;
3522 3916
… …
3526 3920
3527 if (!fs_2625) 3921 if (!fs_2625)
3528 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3922 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3529 else if (!statfs (w->path, &sfs) 3923 else if (!statfs (w->path, &sfs)
3530 && (sfs.f_type == 0x1373 /* devfs */ 3924 && (sfs.f_type == 0x1373 /* devfs */
3925 || sfs.f_type == 0x4006 /* fat */
3926 || sfs.f_type == 0x4d44 /* msdos */
3531 || sfs.f_type == 0xEF53 /* ext2/3 */ 3927 || sfs.f_type == 0xEF53 /* ext2/3 */
3928 || sfs.f_type == 0x72b6 /* jffs2 */
3929 || sfs.f_type == 0x858458f6 /* ramfs */
3930 || sfs.f_type == 0x5346544e /* ntfs */
3532 || sfs.f_type == 0x3153464a /* jfs */ 3931 || sfs.f_type == 0x3153464a /* jfs */
3932 || sfs.f_type == 0x9123683e /* btrfs */
3533 || sfs.f_type == 0x52654973 /* reiser3 */ 3933 || sfs.f_type == 0x52654973 /* reiser3 */
3534 || sfs.f_type == 0x01021994 /* tempfs */ 3934 || sfs.f_type == 0x01021994 /* tmpfs */
3535 || sfs.f_type == 0x58465342 /* xfs */)) 3935 || sfs.f_type == 0x58465342 /* xfs */))
3536 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3936 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3537 else 3937 else
3538 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3938 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3539 } 3939 }
… …
3652} 4052}
3653 4053
3654inline_size int 4054inline_size int
3655infy_newfd (void) 4055infy_newfd (void)
3656{ 4056{
3657#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4057#if defined IN_CLOEXEC && defined IN_NONBLOCK
3658 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4058 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3659 if (fd >= 0) 4059 if (fd >= 0)
3660 return fd; 4060 return fd;
3661#endif 4061#endif
3662 return inotify_init (); 4062 return inotify_init ();
… …
3737#else 4137#else
3738# define EV_LSTAT(p,b) lstat (p, b) 4138# define EV_LSTAT(p,b) lstat (p, b)
3739#endif 4139#endif
3740 4140
3741void 4141void
3742ev_stat_stat (EV_P_ ev_stat *w) 4142ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3743{ 4143{
3744 if (lstat (w->path, &w->attr) < 0) 4144 if (lstat (w->path, &w->attr) < 0)
3745 w->attr.st_nlink = 0; 4145 w->attr.st_nlink = 0;
3746 else if (!w->attr.st_nlink) 4146 else if (!w->attr.st_nlink)
3747 w->attr.st_nlink = 1; 4147 w->attr.st_nlink = 1;
… …
3786 ev_feed_event (EV_A_ w, EV_STAT); 4186 ev_feed_event (EV_A_ w, EV_STAT);
3787 } 4187 }
3788} 4188}
3789 4189
3790void 4190void
3791ev_stat_start (EV_P_ ev_stat *w) 4191ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3792{ 4192{
3793 if (expect_false (ev_is_active (w))) 4193 if (expect_false (ev_is_active (w)))
3794 return; 4194 return;
3795 4195
3796 ev_stat_stat (EV_A_ w); 4196 ev_stat_stat (EV_A_ w);
… …
3817 4217
3818 EV_FREQUENT_CHECK; 4218 EV_FREQUENT_CHECK;
3819} 4219}
3820 4220
3821void 4221void
3822ev_stat_stop (EV_P_ ev_stat *w) 4222ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3823{ 4223{
3824 clear_pending (EV_A_ (W)w); 4224 clear_pending (EV_A_ (W)w);
3825 if (expect_false (!ev_is_active (w))) 4225 if (expect_false (!ev_is_active (w)))
3826 return; 4226 return;
3827 4227
… …
3843} 4243}
3844#endif 4244#endif
3845 4245
3846#if EV_IDLE_ENABLE 4246#if EV_IDLE_ENABLE
3847void 4247void
3848ev_idle_start (EV_P_ ev_idle *w) 4248ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3849{ 4249{
3850 if (expect_false (ev_is_active (w))) 4250 if (expect_false (ev_is_active (w)))
3851 return; 4251 return;
3852 4252
3853 pri_adjust (EV_A_ (W)w); 4253 pri_adjust (EV_A_ (W)w);
… …
3866 4266
3867 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3868} 4268}
3869 4269
3870void 4270void
3871ev_idle_stop (EV_P_ ev_idle *w) 4271ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3872{ 4272{
3873 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3875 return; 4275 return;
3876 4276
… …
3890} 4290}
3891#endif 4291#endif
3892 4292
3893#if EV_PREPARE_ENABLE 4293#if EV_PREPARE_ENABLE
3894void 4294void
3895ev_prepare_start (EV_P_ ev_prepare *w) 4295ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3896{ 4296{
3897 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3898 return; 4298 return;
3899 4299
3900 EV_FREQUENT_CHECK; 4300 EV_FREQUENT_CHECK;
… …
3905 4305
3906 EV_FREQUENT_CHECK; 4306 EV_FREQUENT_CHECK;
3907} 4307}
3908 4308
3909void 4309void
3910ev_prepare_stop (EV_P_ ev_prepare *w) 4310ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3911{ 4311{
3912 clear_pending (EV_A_ (W)w); 4312 clear_pending (EV_A_ (W)w);
3913 if (expect_false (!ev_is_active (w))) 4313 if (expect_false (!ev_is_active (w)))
3914 return; 4314 return;
3915 4315
… …
3928} 4328}
3929#endif 4329#endif
3930 4330
3931#if EV_CHECK_ENABLE 4331#if EV_CHECK_ENABLE
3932void 4332void
3933ev_check_start (EV_P_ ev_check *w) 4333ev_check_start (EV_P_ ev_check *w) EV_THROW
3934{ 4334{
3935 if (expect_false (ev_is_active (w))) 4335 if (expect_false (ev_is_active (w)))
3936 return; 4336 return;
3937 4337
3938 EV_FREQUENT_CHECK; 4338 EV_FREQUENT_CHECK;
… …
3943 4343
3944 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3945} 4345}
3946 4346
3947void 4347void
3948ev_check_stop (EV_P_ ev_check *w) 4348ev_check_stop (EV_P_ ev_check *w) EV_THROW
3949{ 4349{
3950 clear_pending (EV_A_ (W)w); 4350 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4351 if (expect_false (!ev_is_active (w)))
3952 return; 4352 return;
3953 4353
… …
3966} 4366}
3967#endif 4367#endif
3968 4368
3969#if EV_EMBED_ENABLE 4369#if EV_EMBED_ENABLE
3970void noinline 4370void noinline
3971ev_embed_sweep (EV_P_ ev_embed *w) 4371ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3972{ 4372{
3973 ev_run (w->other, EVRUN_NOWAIT); 4373 ev_run (w->other, EVRUN_NOWAIT);
3974} 4374}
3975 4375
3976static void 4376static void
… …
4024 ev_idle_stop (EV_A_ idle); 4424 ev_idle_stop (EV_A_ idle);
4025} 4425}
4026#endif 4426#endif
4027 4427
4028void 4428void
4029ev_embed_start (EV_P_ ev_embed *w) 4429ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4030{ 4430{
4031 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
4032 return; 4432 return;
4033 4433
4034 { 4434 {
… …
4055 4455
4056 EV_FREQUENT_CHECK; 4456 EV_FREQUENT_CHECK;
4057} 4457}
4058 4458
4059void 4459void
4060ev_embed_stop (EV_P_ ev_embed *w) 4460ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4061{ 4461{
4062 clear_pending (EV_A_ (W)w); 4462 clear_pending (EV_A_ (W)w);
4063 if (expect_false (!ev_is_active (w))) 4463 if (expect_false (!ev_is_active (w)))
4064 return; 4464 return;
4065 4465
… …
4075} 4475}
4076#endif 4476#endif
4077 4477
4078#if EV_FORK_ENABLE 4478#if EV_FORK_ENABLE
4079void 4479void
4080ev_fork_start (EV_P_ ev_fork *w) 4480ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4081{ 4481{
4082 if (expect_false (ev_is_active (w))) 4482 if (expect_false (ev_is_active (w)))
4083 return; 4483 return;
4084 4484
4085 EV_FREQUENT_CHECK; 4485 EV_FREQUENT_CHECK;
… …
4090 4490
4091 EV_FREQUENT_CHECK; 4491 EV_FREQUENT_CHECK;
4092} 4492}
4093 4493
4094void 4494void
4095ev_fork_stop (EV_P_ ev_fork *w) 4495ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4096{ 4496{
4097 clear_pending (EV_A_ (W)w); 4497 clear_pending (EV_A_ (W)w);
4098 if (expect_false (!ev_is_active (w))) 4498 if (expect_false (!ev_is_active (w)))
4099 return; 4499 return;
4100 4500
… …
4113} 4513}
4114#endif 4514#endif
4115 4515
4116#if EV_CLEANUP_ENABLE 4516#if EV_CLEANUP_ENABLE
4117void 4517void
4118ev_cleanup_start (EV_P_ ev_cleanup *w) 4518ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4119{ 4519{
4120 if (expect_false (ev_is_active (w))) 4520 if (expect_false (ev_is_active (w)))
4121 return; 4521 return;
4122 4522
4123 EV_FREQUENT_CHECK; 4523 EV_FREQUENT_CHECK;
… …
4130 ev_unref (EV_A); 4530 ev_unref (EV_A);
4131 EV_FREQUENT_CHECK; 4531 EV_FREQUENT_CHECK;
4132} 4532}
4133 4533
4134void 4534void
4135ev_cleanup_stop (EV_P_ ev_cleanup *w) 4535ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4136{ 4536{
4137 clear_pending (EV_A_ (W)w); 4537 clear_pending (EV_A_ (W)w);
4138 if (expect_false (!ev_is_active (w))) 4538 if (expect_false (!ev_is_active (w)))
4139 return; 4539 return;
4140 4540
… …
4154} 4554}
4155#endif 4555#endif
4156 4556
4157#if EV_ASYNC_ENABLE 4557#if EV_ASYNC_ENABLE
4158void 4558void
4159ev_async_start (EV_P_ ev_async *w) 4559ev_async_start (EV_P_ ev_async *w) EV_THROW
4160{ 4560{
4161 if (expect_false (ev_is_active (w))) 4561 if (expect_false (ev_is_active (w)))
4162 return; 4562 return;
4163 4563
4164 w->sent = 0; 4564 w->sent = 0;
… …
4173 4573
4174 EV_FREQUENT_CHECK; 4574 EV_FREQUENT_CHECK;
4175} 4575}
4176 4576
4177void 4577void
4178ev_async_stop (EV_P_ ev_async *w) 4578ev_async_stop (EV_P_ ev_async *w) EV_THROW
4179{ 4579{
4180 clear_pending (EV_A_ (W)w); 4580 clear_pending (EV_A_ (W)w);
4181 if (expect_false (!ev_is_active (w))) 4581 if (expect_false (!ev_is_active (w)))
4182 return; 4582 return;
4183 4583
… …
4194 4594
4195 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
4196} 4596}
4197 4597
4198void 4598void
4199ev_async_send (EV_P_ ev_async *w) 4599ev_async_send (EV_P_ ev_async *w) EV_THROW
4200{ 4600{
4201 w->sent = 1; 4601 w->sent = 1;
4202 evpipe_write (EV_A_ &async_pending); 4602 evpipe_write (EV_A_ &async_pending);
4203} 4603}
4204#endif 4604#endif
… …
4241 4641
4242 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4642 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4243} 4643}
4244 4644
4245void 4645void
4246ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4646ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4247{ 4647{
4248 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4648 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4249 4649
4250 if (expect_false (!once)) 4650 if (expect_false (!once))
4251 { 4651 {
… …
4273 4673
4274/*****************************************************************************/ 4674/*****************************************************************************/
4275 4675
4276#if EV_WALK_ENABLE 4676#if EV_WALK_ENABLE
4277void ecb_cold 4677void ecb_cold
4278ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4678ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4279{ 4679{
4280 int i, j; 4680 int i, j;
4281 ev_watcher_list *wl, *wn; 4681 ev_watcher_list *wl, *wn;
4282 4682
4283 if (types & (EV_IO | EV_EMBED)) 4683 if (types & (EV_IO | EV_EMBED))
… …
4389 4789
4390#if EV_MULTIPLICITY 4790#if EV_MULTIPLICITY
4391 #include "ev_wrap.h" 4791 #include "ev_wrap.h"
4392#endif 4792#endif
4393 4793
4394EV_CPP(})
4395

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