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Comparing libev/ev.c (file contents):
Revision 1.392 by root, Thu Aug 4 14:37:49 2011 UTC vs.
Revision 1.453 by root, Thu Feb 28 00:33:25 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 #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
544 #define ECB_MEMORY_FENCE_RELEASE do { } while (0)
545#endif 596#endif
546 597
547#ifndef ECB_MEMORY_FENCE 598#ifndef ECB_MEMORY_FENCE
548 #if ECB_GCC_VERSION(2,5) 599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
549 #if __x86 600 #if __i386 || __i386__
550 #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")
551 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553 #elif __amd64 604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
555 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 606 #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 */ 607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
557 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
559 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
560 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \ 611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
561 || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
562 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
563 #define ECB_MEMORY_FENCE \ 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
564 do { \ 616 #elif __sparc || __sparc__
565 int null = 0; \ 617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
566 __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \ 618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
567 while (0) 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")
568 #endif 631 #endif
569 #endif 632 #endif
570#endif 633#endif
571 634
572#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
573 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
574 #define ECB_MEMORY_FENCE __sync_synchronize () 650 #define ECB_MEMORY_FENCE __sync_synchronize ()
575 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
576 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
577 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
578 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
579 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
580 #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 */
581 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
582 #elif defined(_WIN32) 656 #elif defined _WIN32
583 #include <WinNT.h> 657 #include <WinNT.h>
584 #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)
585 #endif 681 #endif
586#endif 682#endif
587 683
588#ifndef ECB_MEMORY_FENCE 684#ifndef ECB_MEMORY_FENCE
589 #if !ECB_AVOID_PTHREADS 685 #if !ECB_AVOID_PTHREADS
… …
601 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 697 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
602 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
603 #endif 699 #endif
604#endif 700#endif
605 701
606#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
607 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
608#endif 704#endif
609 705
610#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
611 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
612#endif 708#endif
613 709
614/*****************************************************************************/ 710/*****************************************************************************/
615
616#define ECB_C99 (__STDC_VERSION__ >= 199901L)
617 711
618#if __cplusplus 712#if __cplusplus
619 #define ecb_inline static inline 713 #define ecb_inline static inline
620#elif ECB_GCC_VERSION(2,5) 714#elif ECB_GCC_VERSION(2,5)
621 #define ecb_inline static __inline__ 715 #define ecb_inline static __inline__
… …
660#elif ECB_GCC_VERSION(3,0) 754#elif ECB_GCC_VERSION(3,0)
661 #define ecb_decltype(x) __typeof(x) 755 #define ecb_decltype(x) __typeof(x)
662#endif 756#endif
663 757
664#define ecb_noinline ecb_attribute ((__noinline__)) 758#define ecb_noinline ecb_attribute ((__noinline__))
665#define ecb_noreturn ecb_attribute ((__noreturn__))
666#define ecb_unused ecb_attribute ((__unused__)) 759#define ecb_unused ecb_attribute ((__unused__))
667#define ecb_const ecb_attribute ((__const__)) 760#define ecb_const ecb_attribute ((__const__))
668#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
669 768
670#if ECB_GCC_VERSION(4,3) 769#if ECB_GCC_VERSION(4,3)
671 #define ecb_artificial ecb_attribute ((__artificial__)) 770 #define ecb_artificial ecb_attribute ((__artificial__))
672 #define ecb_hot ecb_attribute ((__hot__)) 771 #define ecb_hot ecb_attribute ((__hot__))
673 #define ecb_cold ecb_attribute ((__cold__)) 772 #define ecb_cold ecb_attribute ((__cold__))
… …
764 863
765 return r + ecb_ld32 (x); 864 return r + ecb_ld32 (x);
766 } 865 }
767#endif 866#endif
768 867
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
769/* popcount64 is only available on 64 bit cpus as gcc builtin */ 903/* popcount64 is only available on 64 bit cpus as gcc builtin */
770/* so for this version we are lazy */ 904/* so for this version we are lazy */
771ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
772ecb_function_ int 906ecb_function_ int
773ecb_popcount64 (uint64_t x) 907ecb_popcount64 (uint64_t x)
… …
822 956
823#if ECB_GCC_VERSION(4,5) 957#if ECB_GCC_VERSION(4,5)
824 #define ecb_unreachable() __builtin_unreachable () 958 #define ecb_unreachable() __builtin_unreachable ()
825#else 959#else
826 /* 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 :/ */
827 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
828 ecb_function_ void ecb_unreachable (void) { } 962 ecb_inline void ecb_unreachable (void) { }
829#endif 963#endif
830 964
831/* try to tell the compiler that some condition is definitely true */ 965/* try to tell the compiler that some condition is definitely true */
832#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
833 967
834ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
835ecb_function_ unsigned char 969ecb_inline unsigned char
836ecb_byteorder_helper (void) 970ecb_byteorder_helper (void)
837{ 971{
838 const uint32_t u = 0x11223344; 972 /* the union code still generates code under pressure in gcc, */
839 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
840} 992}
841 993
842ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
843ecb_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; }
844ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
845ecb_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; }
846 998
847#if ECB_GCC_VERSION(3,0) || ECB_C99 999#if ECB_GCC_VERSION(3,0) || ECB_C99
848 #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))
849#else 1001#else
850 #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))
851#endif 1019#endif
852 1020
853#if ecb_cplusplus_does_not_suck 1021#if ecb_cplusplus_does_not_suck
854 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1022 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
855 template<typename T, int N> 1023 template<typename T, int N>
… …
859 } 1027 }
860#else 1028#else
861 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
862#endif 1030#endif
863 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
864#endif 1199#endif
865 1200
866/* ECB.H END */ 1201/* ECB.H END */
867 1202
868#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
869# undef ECB_MEMORY_FENCE 1214#ifndef ECB_MEMORY_FENCE
870# undef ECB_MEMORY_FENCE_ACQUIRE 1215# define ECB_MEMORY_FENCE do { } while (0)
871# undef ECB_MEMORY_FENCE_RELEASE 1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
872#endif 1218#endif
873 1219
874#define expect_false(cond) ecb_expect_false (cond) 1220#define expect_false(cond) ecb_expect_false (cond)
875#define expect_true(cond) ecb_expect_true (cond) 1221#define expect_true(cond) ecb_expect_true (cond)
876#define noinline ecb_noinline 1222#define noinline ecb_noinline
… …
1023{ 1369{
1024 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
1025} 1371}
1026#endif 1372#endif
1027 1373
1028static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
1029 1375
1030void ecb_cold 1376void ecb_cold
1031ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1032{ 1378{
1033 syserr_cb = cb; 1379 syserr_cb = cb;
1034} 1380}
1035 1381
1036static void noinline ecb_cold 1382static void noinline ecb_cold
… …
1054 abort (); 1400 abort ();
1055 } 1401 }
1056} 1402}
1057 1403
1058static void * 1404static void *
1059ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
1060{ 1406{
1061#if __GLIBC__
1062 return realloc (ptr, size);
1063#else
1064 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
1065 * 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
1066 * 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.
1067 */ 1412 */
1068 1413
1069 if (size) 1414 if (size)
1070 return realloc (ptr, size); 1415 return realloc (ptr, size);
1071 1416
1072 free (ptr); 1417 free (ptr);
1073 return 0; 1418 return 0;
1074#endif
1075} 1419}
1076 1420
1077static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1078 1422
1079void ecb_cold 1423void ecb_cold
1080ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1081{ 1425{
1082 alloc = cb; 1426 alloc = cb;
1083} 1427}
1084 1428
1085inline_speed void * 1429inline_speed void *
… …
1173 #undef VAR 1517 #undef VAR
1174 }; 1518 };
1175 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
1176 1520
1177 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
1178 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 */
1179 1523
1180#else 1524#else
1181 1525
1182 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 */
1183 #define VAR(name,decl) static decl; 1527 #define VAR(name,decl) static decl;
1184 #include "ev_vars.h" 1528 #include "ev_vars.h"
1185 #undef VAR 1529 #undef VAR
1186 1530
1187 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
… …
1202 1546
1203/*****************************************************************************/ 1547/*****************************************************************************/
1204 1548
1205#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
1206ev_tstamp 1550ev_tstamp
1207ev_time (void) 1551ev_time (void) EV_THROW
1208{ 1552{
1209#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
1210 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
1211 { 1555 {
1212 struct timespec ts; 1556 struct timespec ts;
… …
1236 return ev_time (); 1580 return ev_time ();
1237} 1581}
1238 1582
1239#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
1240ev_tstamp 1584ev_tstamp
1241ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
1242{ 1586{
1243 return ev_rt_now; 1587 return ev_rt_now;
1244} 1588}
1245#endif 1589#endif
1246 1590
1247void 1591void
1248ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
1249{ 1593{
1250 if (delay > 0.) 1594 if (delay > 0.)
1251 { 1595 {
1252#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
1253 struct timespec ts; 1597 struct timespec ts;
1254 1598
1255 EV_TS_SET (ts, delay); 1599 EV_TS_SET (ts, delay);
1256 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
1257#elif defined(_WIN32) 1601#elif defined _WIN32
1258 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
1259#else 1603#else
1260 struct timeval tv; 1604 struct timeval tv;
1261 1605
1262 /* 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 */
… …
1281 1625
1282 do 1626 do
1283 ncur <<= 1; 1627 ncur <<= 1;
1284 while (cnt > ncur); 1628 while (cnt > ncur);
1285 1629
1286 /* 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 */
1287 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1288 { 1632 {
1289 ncur *= elem; 1633 ncur *= elem;
1290 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);
1291 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
1334pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
1335{ 1679{
1336} 1680}
1337 1681
1338void noinline 1682void noinline
1339ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1340{ 1684{
1341 W w_ = (W)w; 1685 W w_ = (W)w;
1342 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
1343 1687
1344 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
1348 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
1349 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1350 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
1351 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
1352 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
1353} 1699}
1354 1700
1355inline_speed void 1701inline_speed void
1356feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
1357{ 1703{
… …
1403 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
1404 fd_event_nocheck (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
1405} 1751}
1406 1752
1407void 1753void
1408ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1409{ 1755{
1410 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
1411 fd_event_nocheck (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
1412} 1758}
1413 1759
… …
1732static void noinline ecb_cold 2078static void noinline ecb_cold
1733evpipe_init (EV_P) 2079evpipe_init (EV_P)
1734{ 2080{
1735 if (!ev_is_active (&pipe_w)) 2081 if (!ev_is_active (&pipe_w))
1736 { 2082 {
2083 int fds [2];
2084
1737# if EV_USE_EVENTFD 2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
1738 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1739 if (evfd < 0 && errno == EINVAL) 2088 if (fds [1] < 0 && errno == EINVAL)
1740 evfd = eventfd (0, 0); 2089 fds [1] = eventfd (0, 0);
1741 2090
1742 if (evfd >= 0) 2091 if (fds [1] < 0)
2092# endif
1743 { 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
1744 evpipe [0] = -1; 2102 evpipe [0] = fds [0];
1745 fd_intern (evfd); /* doing it twice doesn't hurt */ 2103
1746 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));
1747 } 2152 }
1748 else 2153 else
1749# endif 2154#endif
1750 { 2155 {
1751 while (pipe (evpipe)) 2156#ifdef _WIN32
1752 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1753 2158 DWORD sent;
1754 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1755 fd_intern (evpipe [1]); 2160 buf.len = 1;
1756 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1757 } 2162#else
1758
1759 ev_io_start (EV_A_ &pipe_w);
1760 ev_unref (EV_A); /* watcher should not keep loop alive */
1761 }
1762}
1763
1764inline_speed void
1765evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1766{
1767 if (expect_true (*flag))
1768 return;
1769
1770 *flag = 1;
1771
1772 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1773
1774 pipe_write_skipped = 1;
1775
1776 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1777
1778 if (pipe_write_wanted)
1779 {
1780 int old_errno;
1781
1782 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1783
1784 old_errno = errno; /* save errno because write will clobber it */
1785
1786#if EV_USE_EVENTFD
1787 if (evfd >= 0)
1788 {
1789 uint64_t counter = 1;
1790 write (evfd, &counter, sizeof (uint64_t));
1791 }
1792 else
1793#endif
1794 {
1795 /* win32 people keep sending patches that change this write() to send() */
1796 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1797 /* so when you think this write should be a send instead, please find out */
1798 /* where your send() is from - it's definitely not the microsoft send, and */
1799 /* tell me. thank you. */
1800 write (evpipe [1], &(evpipe [1]), 1); 2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1801 } 2165 }
1802 2166
1803 errno = old_errno; 2167 errno = old_errno;
1804 } 2168 }
1805} 2169}
… …
1812 int i; 2176 int i;
1813 2177
1814 if (revents & EV_READ) 2178 if (revents & EV_READ)
1815 { 2179 {
1816#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1817 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1818 { 2182 {
1819 uint64_t counter; 2183 uint64_t counter;
1820 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1821 } 2185 }
1822 else 2186 else
1823#endif 2187#endif
1824 { 2188 {
1825 char dummy; 2189 char dummy[4];
1826 /* 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
1827 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
1828 } 2200 }
1829 } 2201 }
1830 2202
1831 pipe_write_skipped = 0; 2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1832 2206
1833#if EV_SIGNAL_ENABLE 2207#if EV_SIGNAL_ENABLE
1834 if (sig_pending) 2208 if (sig_pending)
1835 { 2209 {
1836 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1837 2213
1838 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1839 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1840 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1841 } 2217 }
… …
1843 2219
1844#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1845 if (async_pending) 2221 if (async_pending)
1846 { 2222 {
1847 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1848 2226
1849 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1850 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1851 { 2229 {
1852 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1853 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1854 } 2233 }
1855 } 2234 }
1856#endif 2235#endif
1857} 2236}
1858 2237
1859/*****************************************************************************/ 2238/*****************************************************************************/
1860 2239
1861void 2240void
1862ev_feed_signal (int signum) 2241ev_feed_signal (int signum) EV_THROW
1863{ 2242{
1864#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
2244 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE;
1865 EV_P = signals [signum - 1].loop; 2246 EV_A = signals [signum - 1].loop;
1866 2247
1867 if (!EV_A) 2248 if (!EV_A)
1868 return; 2249 return;
1869#endif 2250#endif
1870 2251
1871 if (!ev_active (&pipe_w))
1872 return;
1873
1874 signals [signum - 1].pending = 1; 2252 signals [signum - 1].pending = 1;
1875 evpipe_write (EV_A_ &sig_pending); 2253 evpipe_write (EV_A_ &sig_pending);
1876} 2254}
1877 2255
1878static void 2256static void
… …
1884 2262
1885 ev_feed_signal (signum); 2263 ev_feed_signal (signum);
1886} 2264}
1887 2265
1888void noinline 2266void noinline
1889ev_feed_signal_event (EV_P_ int signum) 2267ev_feed_signal_event (EV_P_ int signum) EV_THROW
1890{ 2268{
1891 WL w; 2269 WL w;
1892 2270
1893 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2271 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1894 return; 2272 return;
1895 2273
1896 --signum; 2274 --signum;
1897 2275
1898#if EV_MULTIPLICITY 2276#if EV_MULTIPLICITY
… …
1902 if (expect_false (signals [signum].loop != EV_A)) 2280 if (expect_false (signals [signum].loop != EV_A))
1903 return; 2281 return;
1904#endif 2282#endif
1905 2283
1906 signals [signum].pending = 0; 2284 signals [signum].pending = 0;
2285 ECB_MEMORY_FENCE_RELEASE;
1907 2286
1908 for (w = signals [signum].head; w; w = w->next) 2287 for (w = signals [signum].head; w; w = w->next)
1909 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2288 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1910} 2289}
1911 2290
… …
2010#if EV_USE_SELECT 2389#if EV_USE_SELECT
2011# include "ev_select.c" 2390# include "ev_select.c"
2012#endif 2391#endif
2013 2392
2014int ecb_cold 2393int ecb_cold
2015ev_version_major (void) 2394ev_version_major (void) EV_THROW
2016{ 2395{
2017 return EV_VERSION_MAJOR; 2396 return EV_VERSION_MAJOR;
2018} 2397}
2019 2398
2020int ecb_cold 2399int ecb_cold
2021ev_version_minor (void) 2400ev_version_minor (void) EV_THROW
2022{ 2401{
2023 return EV_VERSION_MINOR; 2402 return EV_VERSION_MINOR;
2024} 2403}
2025 2404
2026/* return true if we are running with elevated privileges and should ignore env variables */ 2405/* return true if we are running with elevated privileges and should ignore env variables */
… …
2034 || getgid () != getegid (); 2413 || getgid () != getegid ();
2035#endif 2414#endif
2036} 2415}
2037 2416
2038unsigned int ecb_cold 2417unsigned int ecb_cold
2039ev_supported_backends (void) 2418ev_supported_backends (void) EV_THROW
2040{ 2419{
2041 unsigned int flags = 0; 2420 unsigned int flags = 0;
2042 2421
2043 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2044 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2048 2427
2049 return flags; 2428 return flags;
2050} 2429}
2051 2430
2052unsigned int ecb_cold 2431unsigned int ecb_cold
2053ev_recommended_backends (void) 2432ev_recommended_backends (void) EV_THROW
2054{ 2433{
2055 unsigned int flags = ev_supported_backends (); 2434 unsigned int flags = ev_supported_backends ();
2056 2435
2057#ifndef __NetBSD__ 2436#ifndef __NetBSD__
2058 /* kqueue is borked on everything but netbsd apparently */ 2437 /* kqueue is borked on everything but netbsd apparently */
… …
2070 2449
2071 return flags; 2450 return flags;
2072} 2451}
2073 2452
2074unsigned int ecb_cold 2453unsigned int ecb_cold
2075ev_embeddable_backends (void) 2454ev_embeddable_backends (void) EV_THROW
2076{ 2455{
2077 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2078 2457
2079 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2458 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2080 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2459 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2082 2461
2083 return flags; 2462 return flags;
2084} 2463}
2085 2464
2086unsigned int 2465unsigned int
2087ev_backend (EV_P) 2466ev_backend (EV_P) EV_THROW
2088{ 2467{
2089 return backend; 2468 return backend;
2090} 2469}
2091 2470
2092#if EV_FEATURE_API 2471#if EV_FEATURE_API
2093unsigned int 2472unsigned int
2094ev_iteration (EV_P) 2473ev_iteration (EV_P) EV_THROW
2095{ 2474{
2096 return loop_count; 2475 return loop_count;
2097} 2476}
2098 2477
2099unsigned int 2478unsigned int
2100ev_depth (EV_P) 2479ev_depth (EV_P) EV_THROW
2101{ 2480{
2102 return loop_depth; 2481 return loop_depth;
2103} 2482}
2104 2483
2105void 2484void
2106ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2107{ 2486{
2108 io_blocktime = interval; 2487 io_blocktime = interval;
2109} 2488}
2110 2489
2111void 2490void
2112ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2113{ 2492{
2114 timeout_blocktime = interval; 2493 timeout_blocktime = interval;
2115} 2494}
2116 2495
2117void 2496void
2118ev_set_userdata (EV_P_ void *data) 2497ev_set_userdata (EV_P_ void *data) EV_THROW
2119{ 2498{
2120 userdata = data; 2499 userdata = data;
2121} 2500}
2122 2501
2123void * 2502void *
2124ev_userdata (EV_P) 2503ev_userdata (EV_P) EV_THROW
2125{ 2504{
2126 return userdata; 2505 return userdata;
2127} 2506}
2128 2507
2129void 2508void
2130ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2509ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2131{ 2510{
2132 invoke_cb = invoke_pending_cb; 2511 invoke_cb = invoke_pending_cb;
2133} 2512}
2134 2513
2135void 2514void
2136ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2515ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2137{ 2516{
2138 release_cb = release; 2517 release_cb = release;
2139 acquire_cb = acquire; 2518 acquire_cb = acquire;
2140} 2519}
2141#endif 2520#endif
2142 2521
2143/* initialise a loop structure, must be zero-initialised */ 2522/* initialise a loop structure, must be zero-initialised */
2144static void noinline ecb_cold 2523static void noinline ecb_cold
2145loop_init (EV_P_ unsigned int flags) 2524loop_init (EV_P_ unsigned int flags) EV_THROW
2146{ 2525{
2147 if (!backend) 2526 if (!backend)
2148 { 2527 {
2149 origflags = flags; 2528 origflags = flags;
2150 2529
… …
2195#if EV_ASYNC_ENABLE 2574#if EV_ASYNC_ENABLE
2196 async_pending = 0; 2575 async_pending = 0;
2197#endif 2576#endif
2198 pipe_write_skipped = 0; 2577 pipe_write_skipped = 0;
2199 pipe_write_wanted = 0; 2578 pipe_write_wanted = 0;
2579 evpipe [0] = -1;
2580 evpipe [1] = -1;
2200#if EV_USE_INOTIFY 2581#if EV_USE_INOTIFY
2201 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2202#endif 2583#endif
2203#if EV_USE_SIGNALFD 2584#if EV_USE_SIGNALFD
2204 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2585 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2255 EV_INVOKE_PENDING; 2636 EV_INVOKE_PENDING;
2256 } 2637 }
2257#endif 2638#endif
2258 2639
2259#if EV_CHILD_ENABLE 2640#if EV_CHILD_ENABLE
2260 if (ev_is_active (&childev)) 2641 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2261 { 2642 {
2262 ev_ref (EV_A); /* child watcher */ 2643 ev_ref (EV_A); /* child watcher */
2263 ev_signal_stop (EV_A_ &childev); 2644 ev_signal_stop (EV_A_ &childev);
2264 } 2645 }
2265#endif 2646#endif
… …
2267 if (ev_is_active (&pipe_w)) 2648 if (ev_is_active (&pipe_w))
2268 { 2649 {
2269 /*ev_ref (EV_A);*/ 2650 /*ev_ref (EV_A);*/
2270 /*ev_io_stop (EV_A_ &pipe_w);*/ 2651 /*ev_io_stop (EV_A_ &pipe_w);*/
2271 2652
2272#if EV_USE_EVENTFD
2273 if (evfd >= 0)
2274 close (evfd);
2275#endif
2276
2277 if (evpipe [0] >= 0)
2278 {
2279 EV_WIN32_CLOSE_FD (evpipe [0]); 2653 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2280 EV_WIN32_CLOSE_FD (evpipe [1]); 2654 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2281 }
2282 } 2655 }
2283 2656
2284#if EV_USE_SIGNALFD 2657#if EV_USE_SIGNALFD
2285 if (ev_is_active (&sigfd_w)) 2658 if (ev_is_active (&sigfd_w))
2286 close (sigfd); 2659 close (sigfd);
… …
2372#endif 2745#endif
2373#if EV_USE_INOTIFY 2746#if EV_USE_INOTIFY
2374 infy_fork (EV_A); 2747 infy_fork (EV_A);
2375#endif 2748#endif
2376 2749
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2377 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
2378 { 2752 {
2379 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2753 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2380 2754
2381 ev_ref (EV_A); 2755 ev_ref (EV_A);
2382 ev_io_stop (EV_A_ &pipe_w); 2756 ev_io_stop (EV_A_ &pipe_w);
2383 2757
2384#if EV_USE_EVENTFD
2385 if (evfd >= 0)
2386 close (evfd);
2387#endif
2388
2389 if (evpipe [0] >= 0) 2758 if (evpipe [0] >= 0)
2390 {
2391 EV_WIN32_CLOSE_FD (evpipe [0]); 2759 EV_WIN32_CLOSE_FD (evpipe [0]);
2392 EV_WIN32_CLOSE_FD (evpipe [1]);
2393 }
2394 2760
2395#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2396 evpipe_init (EV_A); 2761 evpipe_init (EV_A);
2397 /* now iterate over everything, in case we missed something */ 2762 /* iterate over everything, in case we missed something before */
2398 pipecb (EV_A_ &pipe_w, EV_READ); 2763 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2399#endif
2400 } 2764 }
2765#endif
2401 2766
2402 postfork = 0; 2767 postfork = 0;
2403} 2768}
2404 2769
2405#if EV_MULTIPLICITY 2770#if EV_MULTIPLICITY
2406 2771
2407struct ev_loop * ecb_cold 2772struct ev_loop * ecb_cold
2408ev_loop_new (unsigned int flags) 2773ev_loop_new (unsigned int flags) EV_THROW
2409{ 2774{
2410 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2411 2776
2412 memset (EV_A, 0, sizeof (struct ev_loop)); 2777 memset (EV_A, 0, sizeof (struct ev_loop));
2413 loop_init (EV_A_ flags); 2778 loop_init (EV_A_ flags);
… …
2457} 2822}
2458#endif 2823#endif
2459 2824
2460#if EV_FEATURE_API 2825#if EV_FEATURE_API
2461void ecb_cold 2826void ecb_cold
2462ev_verify (EV_P) 2827ev_verify (EV_P) EV_THROW
2463{ 2828{
2464#if EV_VERIFY 2829#if EV_VERIFY
2465 int i; 2830 int i;
2466 WL w; 2831 WL w, w2;
2467 2832
2468 assert (activecnt >= -1); 2833 assert (activecnt >= -1);
2469 2834
2470 assert (fdchangemax >= fdchangecnt); 2835 assert (fdchangemax >= fdchangecnt);
2471 for (i = 0; i < fdchangecnt; ++i) 2836 for (i = 0; i < fdchangecnt; ++i)
2472 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2837 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2473 2838
2474 assert (anfdmax >= 0); 2839 assert (anfdmax >= 0);
2475 for (i = 0; i < anfdmax; ++i) 2840 for (i = 0; i < anfdmax; ++i)
2841 {
2842 int j = 0;
2843
2476 for (w = anfds [i].head; w; w = w->next) 2844 for (w = w2 = anfds [i].head; w; w = w->next)
2477 { 2845 {
2478 verify_watcher (EV_A_ (W)w); 2846 verify_watcher (EV_A_ (W)w);
2847
2848 if (j++ & 1)
2849 {
2850 assert (("libev: io watcher list contains a loop", w != w2));
2851 w2 = w2->next;
2852 }
2853
2479 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2854 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2480 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2855 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2481 } 2856 }
2857 }
2482 2858
2483 assert (timermax >= timercnt); 2859 assert (timermax >= timercnt);
2484 verify_heap (EV_A_ timers, timercnt); 2860 verify_heap (EV_A_ timers, timercnt);
2485 2861
2486#if EV_PERIODIC_ENABLE 2862#if EV_PERIODIC_ENABLE
… …
2536#if EV_MULTIPLICITY 2912#if EV_MULTIPLICITY
2537struct ev_loop * ecb_cold 2913struct ev_loop * ecb_cold
2538#else 2914#else
2539int 2915int
2540#endif 2916#endif
2541ev_default_loop (unsigned int flags) 2917ev_default_loop (unsigned int flags) EV_THROW
2542{ 2918{
2543 if (!ev_default_loop_ptr) 2919 if (!ev_default_loop_ptr)
2544 { 2920 {
2545#if EV_MULTIPLICITY 2921#if EV_MULTIPLICITY
2546 EV_P = ev_default_loop_ptr = &default_loop_struct; 2922 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2565 2941
2566 return ev_default_loop_ptr; 2942 return ev_default_loop_ptr;
2567} 2943}
2568 2944
2569void 2945void
2570ev_loop_fork (EV_P) 2946ev_loop_fork (EV_P) EV_THROW
2571{ 2947{
2572 postfork = 1; /* must be in line with ev_default_fork */ 2948 postfork = 1;
2573} 2949}
2574 2950
2575/*****************************************************************************/ 2951/*****************************************************************************/
2576 2952
2577void 2953void
… …
2579{ 2955{
2580 EV_CB_INVOKE ((W)w, revents); 2956 EV_CB_INVOKE ((W)w, revents);
2581} 2957}
2582 2958
2583unsigned int 2959unsigned int
2584ev_pending_count (EV_P) 2960ev_pending_count (EV_P) EV_THROW
2585{ 2961{
2586 int pri; 2962 int pri;
2587 unsigned int count = 0; 2963 unsigned int count = 0;
2588 2964
2589 for (pri = NUMPRI; pri--; ) 2965 for (pri = NUMPRI; pri--; )
… …
2593} 2969}
2594 2970
2595void noinline 2971void noinline
2596ev_invoke_pending (EV_P) 2972ev_invoke_pending (EV_P)
2597{ 2973{
2598 int pri; 2974 pendingpri = NUMPRI;
2599 2975
2600 for (pri = NUMPRI; pri--; ) 2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2977 {
2978 --pendingpri;
2979
2601 while (pendingcnt [pri]) 2980 while (pendingcnt [pendingpri])
2602 { 2981 {
2603 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2604 2983
2605 p->w->pending = 0; 2984 p->w->pending = 0;
2606 EV_CB_INVOKE (p->w, p->events); 2985 EV_CB_INVOKE (p->w, p->events);
2607 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
2608 } 2987 }
2988 }
2609} 2989}
2610 2990
2611#if EV_IDLE_ENABLE 2991#if EV_IDLE_ENABLE
2612/* make idle watchers pending. this handles the "call-idle */ 2992/* make idle watchers pending. this handles the "call-idle */
2613/* only when higher priorities are idle" logic */ 2993/* only when higher priorities are idle" logic */
… …
2703{ 3083{
2704 EV_FREQUENT_CHECK; 3084 EV_FREQUENT_CHECK;
2705 3085
2706 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3086 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2707 { 3087 {
2708 int feed_count = 0;
2709
2710 do 3088 do
2711 { 3089 {
2712 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3090 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2713 3091
2714 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3092 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2848 3226
2849 mn_now = ev_rt_now; 3227 mn_now = ev_rt_now;
2850 } 3228 }
2851} 3229}
2852 3230
2853void 3231int
2854ev_run (EV_P_ int flags) 3232ev_run (EV_P_ int flags)
2855{ 3233{
2856#if EV_FEATURE_API 3234#if EV_FEATURE_API
2857 ++loop_depth; 3235 ++loop_depth;
2858#endif 3236#endif
… …
2971#endif 3349#endif
2972 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3350 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2973 backend_poll (EV_A_ waittime); 3351 backend_poll (EV_A_ waittime);
2974 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3352 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2975 3353
2976 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3354 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2977 3355
3356 ECB_MEMORY_FENCE_ACQUIRE;
2978 if (pipe_write_skipped) 3357 if (pipe_write_skipped)
2979 { 3358 {
2980 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3359 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2981 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3360 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2982 } 3361 }
… …
3015 loop_done = EVBREAK_CANCEL; 3394 loop_done = EVBREAK_CANCEL;
3016 3395
3017#if EV_FEATURE_API 3396#if EV_FEATURE_API
3018 --loop_depth; 3397 --loop_depth;
3019#endif 3398#endif
3399
3400 return activecnt;
3020} 3401}
3021 3402
3022void 3403void
3023ev_break (EV_P_ int how) 3404ev_break (EV_P_ int how) EV_THROW
3024{ 3405{
3025 loop_done = how; 3406 loop_done = how;
3026} 3407}
3027 3408
3028void 3409void
3029ev_ref (EV_P) 3410ev_ref (EV_P) EV_THROW
3030{ 3411{
3031 ++activecnt; 3412 ++activecnt;
3032} 3413}
3033 3414
3034void 3415void
3035ev_unref (EV_P) 3416ev_unref (EV_P) EV_THROW
3036{ 3417{
3037 --activecnt; 3418 --activecnt;
3038} 3419}
3039 3420
3040void 3421void
3041ev_now_update (EV_P) 3422ev_now_update (EV_P) EV_THROW
3042{ 3423{
3043 time_update (EV_A_ 1e100); 3424 time_update (EV_A_ 1e100);
3044} 3425}
3045 3426
3046void 3427void
3047ev_suspend (EV_P) 3428ev_suspend (EV_P) EV_THROW
3048{ 3429{
3049 ev_now_update (EV_A); 3430 ev_now_update (EV_A);
3050} 3431}
3051 3432
3052void 3433void
3053ev_resume (EV_P) 3434ev_resume (EV_P) EV_THROW
3054{ 3435{
3055 ev_tstamp mn_prev = mn_now; 3436 ev_tstamp mn_prev = mn_now;
3056 3437
3057 ev_now_update (EV_A); 3438 ev_now_update (EV_A);
3058 timers_reschedule (EV_A_ mn_now - mn_prev); 3439 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3097 w->pending = 0; 3478 w->pending = 0;
3098 } 3479 }
3099} 3480}
3100 3481
3101int 3482int
3102ev_clear_pending (EV_P_ void *w) 3483ev_clear_pending (EV_P_ void *w) EV_THROW
3103{ 3484{
3104 W w_ = (W)w; 3485 W w_ = (W)w;
3105 int pending = w_->pending; 3486 int pending = w_->pending;
3106 3487
3107 if (expect_true (pending)) 3488 if (expect_true (pending))
… …
3140} 3521}
3141 3522
3142/*****************************************************************************/ 3523/*****************************************************************************/
3143 3524
3144void noinline 3525void noinline
3145ev_io_start (EV_P_ ev_io *w) 3526ev_io_start (EV_P_ ev_io *w) EV_THROW
3146{ 3527{
3147 int fd = w->fd; 3528 int fd = w->fd;
3148 3529
3149 if (expect_false (ev_is_active (w))) 3530 if (expect_false (ev_is_active (w)))
3150 return; 3531 return;
… …
3156 3537
3157 ev_start (EV_A_ (W)w, 1); 3538 ev_start (EV_A_ (W)w, 1);
3158 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3159 wlist_add (&anfds[fd].head, (WL)w); 3540 wlist_add (&anfds[fd].head, (WL)w);
3160 3541
3542 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544
3161 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3545 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3162 w->events &= ~EV__IOFDSET; 3546 w->events &= ~EV__IOFDSET;
3163 3547
3164 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
3165} 3549}
3166 3550
3167void noinline 3551void noinline
3168ev_io_stop (EV_P_ ev_io *w) 3552ev_io_stop (EV_P_ ev_io *w) EV_THROW
3169{ 3553{
3170 clear_pending (EV_A_ (W)w); 3554 clear_pending (EV_A_ (W)w);
3171 if (expect_false (!ev_is_active (w))) 3555 if (expect_false (!ev_is_active (w)))
3172 return; 3556 return;
3173 3557
… …
3182 3566
3183 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
3184} 3568}
3185 3569
3186void noinline 3570void noinline
3187ev_timer_start (EV_P_ ev_timer *w) 3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3188{ 3572{
3189 if (expect_false (ev_is_active (w))) 3573 if (expect_false (ev_is_active (w)))
3190 return; 3574 return;
3191 3575
3192 ev_at (w) += mn_now; 3576 ev_at (w) += mn_now;
… …
3206 3590
3207 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3591 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3208} 3592}
3209 3593
3210void noinline 3594void noinline
3211ev_timer_stop (EV_P_ ev_timer *w) 3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3212{ 3596{
3213 clear_pending (EV_A_ (W)w); 3597 clear_pending (EV_A_ (W)w);
3214 if (expect_false (!ev_is_active (w))) 3598 if (expect_false (!ev_is_active (w)))
3215 return; 3599 return;
3216 3600
… …
3236 3620
3237 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
3238} 3622}
3239 3623
3240void noinline 3624void noinline
3241ev_timer_again (EV_P_ ev_timer *w) 3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3242{ 3626{
3243 EV_FREQUENT_CHECK; 3627 EV_FREQUENT_CHECK;
3628
3629 clear_pending (EV_A_ (W)w);
3244 3630
3245 if (ev_is_active (w)) 3631 if (ev_is_active (w))
3246 { 3632 {
3247 if (w->repeat) 3633 if (w->repeat)
3248 { 3634 {
… …
3261 3647
3262 EV_FREQUENT_CHECK; 3648 EV_FREQUENT_CHECK;
3263} 3649}
3264 3650
3265ev_tstamp 3651ev_tstamp
3266ev_timer_remaining (EV_P_ ev_timer *w) 3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3267{ 3653{
3268 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3269} 3655}
3270 3656
3271#if EV_PERIODIC_ENABLE 3657#if EV_PERIODIC_ENABLE
3272void noinline 3658void noinline
3273ev_periodic_start (EV_P_ ev_periodic *w) 3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3274{ 3660{
3275 if (expect_false (ev_is_active (w))) 3661 if (expect_false (ev_is_active (w)))
3276 return; 3662 return;
3277 3663
3278 if (w->reschedule_cb) 3664 if (w->reschedule_cb)
… …
3298 3684
3299 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3685 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3300} 3686}
3301 3687
3302void noinline 3688void noinline
3303ev_periodic_stop (EV_P_ ev_periodic *w) 3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3304{ 3690{
3305 clear_pending (EV_A_ (W)w); 3691 clear_pending (EV_A_ (W)w);
3306 if (expect_false (!ev_is_active (w))) 3692 if (expect_false (!ev_is_active (w)))
3307 return; 3693 return;
3308 3694
… …
3326 3712
3327 EV_FREQUENT_CHECK; 3713 EV_FREQUENT_CHECK;
3328} 3714}
3329 3715
3330void noinline 3716void noinline
3331ev_periodic_again (EV_P_ ev_periodic *w) 3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3332{ 3718{
3333 /* TODO: use adjustheap and recalculation */ 3719 /* TODO: use adjustheap and recalculation */
3334 ev_periodic_stop (EV_A_ w); 3720 ev_periodic_stop (EV_A_ w);
3335 ev_periodic_start (EV_A_ w); 3721 ev_periodic_start (EV_A_ w);
3336} 3722}
… …
3341#endif 3727#endif
3342 3728
3343#if EV_SIGNAL_ENABLE 3729#if EV_SIGNAL_ENABLE
3344 3730
3345void noinline 3731void noinline
3346ev_signal_start (EV_P_ ev_signal *w) 3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3347{ 3733{
3348 if (expect_false (ev_is_active (w))) 3734 if (expect_false (ev_is_active (w)))
3349 return; 3735 return;
3350 3736
3351 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3737 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3353#if EV_MULTIPLICITY 3739#if EV_MULTIPLICITY
3354 assert (("libev: a signal must not be attached to two different loops", 3740 assert (("libev: a signal must not be attached to two different loops",
3355 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3741 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3356 3742
3357 signals [w->signum - 1].loop = EV_A; 3743 signals [w->signum - 1].loop = EV_A;
3744 ECB_MEMORY_FENCE_RELEASE;
3358#endif 3745#endif
3359 3746
3360 EV_FREQUENT_CHECK; 3747 EV_FREQUENT_CHECK;
3361 3748
3362#if EV_USE_SIGNALFD 3749#if EV_USE_SIGNALFD
… …
3422 3809
3423 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
3424} 3811}
3425 3812
3426void noinline 3813void noinline
3427ev_signal_stop (EV_P_ ev_signal *w) 3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3428{ 3815{
3429 clear_pending (EV_A_ (W)w); 3816 clear_pending (EV_A_ (W)w);
3430 if (expect_false (!ev_is_active (w))) 3817 if (expect_false (!ev_is_active (w)))
3431 return; 3818 return;
3432 3819
… …
3463#endif 3850#endif
3464 3851
3465#if EV_CHILD_ENABLE 3852#if EV_CHILD_ENABLE
3466 3853
3467void 3854void
3468ev_child_start (EV_P_ ev_child *w) 3855ev_child_start (EV_P_ ev_child *w) EV_THROW
3469{ 3856{
3470#if EV_MULTIPLICITY 3857#if EV_MULTIPLICITY
3471 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3858 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3472#endif 3859#endif
3473 if (expect_false (ev_is_active (w))) 3860 if (expect_false (ev_is_active (w)))
… …
3480 3867
3481 EV_FREQUENT_CHECK; 3868 EV_FREQUENT_CHECK;
3482} 3869}
3483 3870
3484void 3871void
3485ev_child_stop (EV_P_ ev_child *w) 3872ev_child_stop (EV_P_ ev_child *w) EV_THROW
3486{ 3873{
3487 clear_pending (EV_A_ (W)w); 3874 clear_pending (EV_A_ (W)w);
3488 if (expect_false (!ev_is_active (w))) 3875 if (expect_false (!ev_is_active (w)))
3489 return; 3876 return;
3490 3877
… …
3517# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3518 3905
3519static void noinline 3906static void noinline
3520infy_add (EV_P_ ev_stat *w) 3907infy_add (EV_P_ ev_stat *w)
3521{ 3908{
3522 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3909 w->wd = inotify_add_watch (fs_fd, w->path,
3910 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3911 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3912 | IN_DONT_FOLLOW | IN_MASK_ADD);
3523 3913
3524 if (w->wd >= 0) 3914 if (w->wd >= 0)
3525 { 3915 {
3526 struct statfs sfs; 3916 struct statfs sfs;
3527 3917
… …
3531 3921
3532 if (!fs_2625) 3922 if (!fs_2625)
3533 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3923 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3534 else if (!statfs (w->path, &sfs) 3924 else if (!statfs (w->path, &sfs)
3535 && (sfs.f_type == 0x1373 /* devfs */ 3925 && (sfs.f_type == 0x1373 /* devfs */
3926 || sfs.f_type == 0x4006 /* fat */
3927 || sfs.f_type == 0x4d44 /* msdos */
3536 || sfs.f_type == 0xEF53 /* ext2/3 */ 3928 || sfs.f_type == 0xEF53 /* ext2/3 */
3929 || sfs.f_type == 0x72b6 /* jffs2 */
3930 || sfs.f_type == 0x858458f6 /* ramfs */
3931 || sfs.f_type == 0x5346544e /* ntfs */
3537 || sfs.f_type == 0x3153464a /* jfs */ 3932 || sfs.f_type == 0x3153464a /* jfs */
3933 || sfs.f_type == 0x9123683e /* btrfs */
3538 || sfs.f_type == 0x52654973 /* reiser3 */ 3934 || sfs.f_type == 0x52654973 /* reiser3 */
3539 || sfs.f_type == 0x01021994 /* tempfs */ 3935 || sfs.f_type == 0x01021994 /* tmpfs */
3540 || sfs.f_type == 0x58465342 /* xfs */)) 3936 || sfs.f_type == 0x58465342 /* xfs */))
3541 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3937 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3542 else 3938 else
3543 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3939 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3544 } 3940 }
… …
3657} 4053}
3658 4054
3659inline_size int 4055inline_size int
3660infy_newfd (void) 4056infy_newfd (void)
3661{ 4057{
3662#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4058#if defined IN_CLOEXEC && defined IN_NONBLOCK
3663 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4059 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3664 if (fd >= 0) 4060 if (fd >= 0)
3665 return fd; 4061 return fd;
3666#endif 4062#endif
3667 return inotify_init (); 4063 return inotify_init ();
… …
3742#else 4138#else
3743# define EV_LSTAT(p,b) lstat (p, b) 4139# define EV_LSTAT(p,b) lstat (p, b)
3744#endif 4140#endif
3745 4141
3746void 4142void
3747ev_stat_stat (EV_P_ ev_stat *w) 4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3748{ 4144{
3749 if (lstat (w->path, &w->attr) < 0) 4145 if (lstat (w->path, &w->attr) < 0)
3750 w->attr.st_nlink = 0; 4146 w->attr.st_nlink = 0;
3751 else if (!w->attr.st_nlink) 4147 else if (!w->attr.st_nlink)
3752 w->attr.st_nlink = 1; 4148 w->attr.st_nlink = 1;
… …
3791 ev_feed_event (EV_A_ w, EV_STAT); 4187 ev_feed_event (EV_A_ w, EV_STAT);
3792 } 4188 }
3793} 4189}
3794 4190
3795void 4191void
3796ev_stat_start (EV_P_ ev_stat *w) 4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3797{ 4193{
3798 if (expect_false (ev_is_active (w))) 4194 if (expect_false (ev_is_active (w)))
3799 return; 4195 return;
3800 4196
3801 ev_stat_stat (EV_A_ w); 4197 ev_stat_stat (EV_A_ w);
… …
3822 4218
3823 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3824} 4220}
3825 4221
3826void 4222void
3827ev_stat_stop (EV_P_ ev_stat *w) 4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3828{ 4224{
3829 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3830 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3831 return; 4227 return;
3832 4228
… …
3848} 4244}
3849#endif 4245#endif
3850 4246
3851#if EV_IDLE_ENABLE 4247#if EV_IDLE_ENABLE
3852void 4248void
3853ev_idle_start (EV_P_ ev_idle *w) 4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3854{ 4250{
3855 if (expect_false (ev_is_active (w))) 4251 if (expect_false (ev_is_active (w)))
3856 return; 4252 return;
3857 4253
3858 pri_adjust (EV_A_ (W)w); 4254 pri_adjust (EV_A_ (W)w);
… …
3871 4267
3872 EV_FREQUENT_CHECK; 4268 EV_FREQUENT_CHECK;
3873} 4269}
3874 4270
3875void 4271void
3876ev_idle_stop (EV_P_ ev_idle *w) 4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3877{ 4273{
3878 clear_pending (EV_A_ (W)w); 4274 clear_pending (EV_A_ (W)w);
3879 if (expect_false (!ev_is_active (w))) 4275 if (expect_false (!ev_is_active (w)))
3880 return; 4276 return;
3881 4277
… …
3895} 4291}
3896#endif 4292#endif
3897 4293
3898#if EV_PREPARE_ENABLE 4294#if EV_PREPARE_ENABLE
3899void 4295void
3900ev_prepare_start (EV_P_ ev_prepare *w) 4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3901{ 4297{
3902 if (expect_false (ev_is_active (w))) 4298 if (expect_false (ev_is_active (w)))
3903 return; 4299 return;
3904 4300
3905 EV_FREQUENT_CHECK; 4301 EV_FREQUENT_CHECK;
… …
3910 4306
3911 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
3912} 4308}
3913 4309
3914void 4310void
3915ev_prepare_stop (EV_P_ ev_prepare *w) 4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3916{ 4312{
3917 clear_pending (EV_A_ (W)w); 4313 clear_pending (EV_A_ (W)w);
3918 if (expect_false (!ev_is_active (w))) 4314 if (expect_false (!ev_is_active (w)))
3919 return; 4315 return;
3920 4316
… …
3933} 4329}
3934#endif 4330#endif
3935 4331
3936#if EV_CHECK_ENABLE 4332#if EV_CHECK_ENABLE
3937void 4333void
3938ev_check_start (EV_P_ ev_check *w) 4334ev_check_start (EV_P_ ev_check *w) EV_THROW
3939{ 4335{
3940 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3941 return; 4337 return;
3942 4338
3943 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
… …
3948 4344
3949 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3950} 4346}
3951 4347
3952void 4348void
3953ev_check_stop (EV_P_ ev_check *w) 4349ev_check_stop (EV_P_ ev_check *w) EV_THROW
3954{ 4350{
3955 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3956 if (expect_false (!ev_is_active (w))) 4352 if (expect_false (!ev_is_active (w)))
3957 return; 4353 return;
3958 4354
… …
3971} 4367}
3972#endif 4368#endif
3973 4369
3974#if EV_EMBED_ENABLE 4370#if EV_EMBED_ENABLE
3975void noinline 4371void noinline
3976ev_embed_sweep (EV_P_ ev_embed *w) 4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3977{ 4373{
3978 ev_run (w->other, EVRUN_NOWAIT); 4374 ev_run (w->other, EVRUN_NOWAIT);
3979} 4375}
3980 4376
3981static void 4377static void
… …
4029 ev_idle_stop (EV_A_ idle); 4425 ev_idle_stop (EV_A_ idle);
4030} 4426}
4031#endif 4427#endif
4032 4428
4033void 4429void
4034ev_embed_start (EV_P_ ev_embed *w) 4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4035{ 4431{
4036 if (expect_false (ev_is_active (w))) 4432 if (expect_false (ev_is_active (w)))
4037 return; 4433 return;
4038 4434
4039 { 4435 {
… …
4060 4456
4061 EV_FREQUENT_CHECK; 4457 EV_FREQUENT_CHECK;
4062} 4458}
4063 4459
4064void 4460void
4065ev_embed_stop (EV_P_ ev_embed *w) 4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4066{ 4462{
4067 clear_pending (EV_A_ (W)w); 4463 clear_pending (EV_A_ (W)w);
4068 if (expect_false (!ev_is_active (w))) 4464 if (expect_false (!ev_is_active (w)))
4069 return; 4465 return;
4070 4466
… …
4080} 4476}
4081#endif 4477#endif
4082 4478
4083#if EV_FORK_ENABLE 4479#if EV_FORK_ENABLE
4084void 4480void
4085ev_fork_start (EV_P_ ev_fork *w) 4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4086{ 4482{
4087 if (expect_false (ev_is_active (w))) 4483 if (expect_false (ev_is_active (w)))
4088 return; 4484 return;
4089 4485
4090 EV_FREQUENT_CHECK; 4486 EV_FREQUENT_CHECK;
… …
4095 4491
4096 EV_FREQUENT_CHECK; 4492 EV_FREQUENT_CHECK;
4097} 4493}
4098 4494
4099void 4495void
4100ev_fork_stop (EV_P_ ev_fork *w) 4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4101{ 4497{
4102 clear_pending (EV_A_ (W)w); 4498 clear_pending (EV_A_ (W)w);
4103 if (expect_false (!ev_is_active (w))) 4499 if (expect_false (!ev_is_active (w)))
4104 return; 4500 return;
4105 4501
… …
4118} 4514}
4119#endif 4515#endif
4120 4516
4121#if EV_CLEANUP_ENABLE 4517#if EV_CLEANUP_ENABLE
4122void 4518void
4123ev_cleanup_start (EV_P_ ev_cleanup *w) 4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4124{ 4520{
4125 if (expect_false (ev_is_active (w))) 4521 if (expect_false (ev_is_active (w)))
4126 return; 4522 return;
4127 4523
4128 EV_FREQUENT_CHECK; 4524 EV_FREQUENT_CHECK;
… …
4135 ev_unref (EV_A); 4531 ev_unref (EV_A);
4136 EV_FREQUENT_CHECK; 4532 EV_FREQUENT_CHECK;
4137} 4533}
4138 4534
4139void 4535void
4140ev_cleanup_stop (EV_P_ ev_cleanup *w) 4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4141{ 4537{
4142 clear_pending (EV_A_ (W)w); 4538 clear_pending (EV_A_ (W)w);
4143 if (expect_false (!ev_is_active (w))) 4539 if (expect_false (!ev_is_active (w)))
4144 return; 4540 return;
4145 4541
… …
4159} 4555}
4160#endif 4556#endif
4161 4557
4162#if EV_ASYNC_ENABLE 4558#if EV_ASYNC_ENABLE
4163void 4559void
4164ev_async_start (EV_P_ ev_async *w) 4560ev_async_start (EV_P_ ev_async *w) EV_THROW
4165{ 4561{
4166 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
4167 return; 4563 return;
4168 4564
4169 w->sent = 0; 4565 w->sent = 0;
… …
4178 4574
4179 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4180} 4576}
4181 4577
4182void 4578void
4183ev_async_stop (EV_P_ ev_async *w) 4579ev_async_stop (EV_P_ ev_async *w) EV_THROW
4184{ 4580{
4185 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4186 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4187 return; 4583 return;
4188 4584
… …
4199 4595
4200 EV_FREQUENT_CHECK; 4596 EV_FREQUENT_CHECK;
4201} 4597}
4202 4598
4203void 4599void
4204ev_async_send (EV_P_ ev_async *w) 4600ev_async_send (EV_P_ ev_async *w) EV_THROW
4205{ 4601{
4206 w->sent = 1; 4602 w->sent = 1;
4207 evpipe_write (EV_A_ &async_pending); 4603 evpipe_write (EV_A_ &async_pending);
4208} 4604}
4209#endif 4605#endif
… …
4246 4642
4247 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4643 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4248} 4644}
4249 4645
4250void 4646void
4251ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4647ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4252{ 4648{
4253 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4649 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4254 4650
4255 if (expect_false (!once)) 4651 if (expect_false (!once))
4256 { 4652 {
… …
4278 4674
4279/*****************************************************************************/ 4675/*****************************************************************************/
4280 4676
4281#if EV_WALK_ENABLE 4677#if EV_WALK_ENABLE
4282void ecb_cold 4678void ecb_cold
4283ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4679ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4284{ 4680{
4285 int i, j; 4681 int i, j;
4286 ev_watcher_list *wl, *wn; 4682 ev_watcher_list *wl, *wn;
4287 4683
4288 if (types & (EV_IO | EV_EMBED)) 4684 if (types & (EV_IO | EV_EMBED))
… …
4394 4790
4395#if EV_MULTIPLICITY 4791#if EV_MULTIPLICITY
4396 #include "ev_wrap.h" 4792 #include "ev_wrap.h"
4397#endif 4793#endif
4398 4794
4399EV_CPP(})
4400

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