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Comparing libev/ev.c (file contents):
Revision 1.391 by root, Thu Aug 4 13:57:16 2011 UTC vs.
Revision 1.453 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__ ("")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
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")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
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")
557 #endif 631 #endif
558 #endif 632 #endif
559#endif 633#endif
560 634
561#ifndef ECB_MEMORY_FENCE 635#ifndef ECB_MEMORY_FENCE
562 #if ECB_GCC_VERSION(4,4) 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
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
563 #define ECB_MEMORY_FENCE __sync_synchronize () 650 #define ECB_MEMORY_FENCE __sync_synchronize ()
564 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
565 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
566 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
567 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
568 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
569 #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 */
570 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
571 #elif defined(_WIN32) 656 #elif defined _WIN32
572 #include <WinNT.h> 657 #include <WinNT.h>
573 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
574 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
575 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 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 ()
576 #endif 666 #endif
577#endif 667#endif
578 668
579#ifndef ECB_MEMORY_FENCE 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)
681 #endif
682#endif
683
684#ifndef ECB_MEMORY_FENCE
685 #if !ECB_AVOID_PTHREADS
580 /* 686 /*
581 * if you get undefined symbol references to pthread_mutex_lock, 687 * if you get undefined symbol references to pthread_mutex_lock,
582 * or failure to find pthread.h, then you should implement 688 * or failure to find pthread.h, then you should implement
583 * the ECB_MEMORY_FENCE operations for your cpu/compiler 689 * the ECB_MEMORY_FENCE operations for your cpu/compiler
584 * OR provide pthread.h and link against the posix thread library 690 * OR provide pthread.h and link against the posix thread library
585 * of your system. 691 * of your system.
586 */ 692 */
587 #include <pthread.h> 693 #include <pthread.h>
588 #define ECB_NEEDS_PTHREADS 1 694 #define ECB_NEEDS_PTHREADS 1
589 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 695 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
590 696
591 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 697 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
592 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
699 #endif
700#endif
701
702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
593 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
704#endif
705
706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
594 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
595#endif 708#endif
596 709
597/*****************************************************************************/ 710/*****************************************************************************/
598
599#define ECB_C99 (__STDC_VERSION__ >= 199901L)
600 711
601#if __cplusplus 712#if __cplusplus
602 #define ecb_inline static inline 713 #define ecb_inline static inline
603#elif ECB_GCC_VERSION(2,5) 714#elif ECB_GCC_VERSION(2,5)
604 #define ecb_inline static __inline__ 715 #define ecb_inline static __inline__
… …
643#elif ECB_GCC_VERSION(3,0) 754#elif ECB_GCC_VERSION(3,0)
644 #define ecb_decltype(x) __typeof(x) 755 #define ecb_decltype(x) __typeof(x)
645#endif 756#endif
646 757
647#define ecb_noinline ecb_attribute ((__noinline__)) 758#define ecb_noinline ecb_attribute ((__noinline__))
648#define ecb_noreturn ecb_attribute ((__noreturn__))
649#define ecb_unused ecb_attribute ((__unused__)) 759#define ecb_unused ecb_attribute ((__unused__))
650#define ecb_const ecb_attribute ((__const__)) 760#define ecb_const ecb_attribute ((__const__))
651#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
652 768
653#if ECB_GCC_VERSION(4,3) 769#if ECB_GCC_VERSION(4,3)
654 #define ecb_artificial ecb_attribute ((__artificial__)) 770 #define ecb_artificial ecb_attribute ((__artificial__))
655 #define ecb_hot ecb_attribute ((__hot__)) 771 #define ecb_hot ecb_attribute ((__hot__))
656 #define ecb_cold ecb_attribute ((__cold__)) 772 #define ecb_cold ecb_attribute ((__cold__))
… …
747 863
748 return r + ecb_ld32 (x); 864 return r + ecb_ld32 (x);
749 } 865 }
750#endif 866#endif
751 867
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
752/* popcount64 is only available on 64 bit cpus as gcc builtin */ 903/* popcount64 is only available on 64 bit cpus as gcc builtin */
753/* so for this version we are lazy */ 904/* so for this version we are lazy */
754ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
755ecb_function_ int 906ecb_function_ int
756ecb_popcount64 (uint64_t x) 907ecb_popcount64 (uint64_t x)
… …
805 956
806#if ECB_GCC_VERSION(4,5) 957#if ECB_GCC_VERSION(4,5)
807 #define ecb_unreachable() __builtin_unreachable () 958 #define ecb_unreachable() __builtin_unreachable ()
808#else 959#else
809 /* 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 :/ */
810 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
811 ecb_function_ void ecb_unreachable (void) { } 962 ecb_inline void ecb_unreachable (void) { }
812#endif 963#endif
813 964
814/* try to tell the compiler that some condition is definitely true */ 965/* try to tell the compiler that some condition is definitely true */
815#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
816 967
817ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
818ecb_function_ unsigned char 969ecb_inline unsigned char
819ecb_byteorder_helper (void) 970ecb_byteorder_helper (void)
820{ 971{
821 const uint32_t u = 0x11223344; 972 /* the union code still generates code under pressure in gcc, */
822 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
823} 992}
824 993
825ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
826ecb_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; }
827ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
828ecb_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; }
829 998
830#if ECB_GCC_VERSION(3,0) || ECB_C99 999#if ECB_GCC_VERSION(3,0) || ECB_C99
831 #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))
832#else 1001#else
833 #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))
834#endif 1019#endif
835 1020
836#if ecb_cplusplus_does_not_suck 1021#if ecb_cplusplus_does_not_suck
837 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1022 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
838 template<typename T, int N> 1023 template<typename T, int N>
… …
842 } 1027 }
843#else 1028#else
844 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
845#endif 1030#endif
846 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
847#endif 1199#endif
848 1200
849/* ECB.H END */ 1201/* ECB.H END */
1202
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
1214#ifndef ECB_MEMORY_FENCE
1215# define ECB_MEMORY_FENCE do { } while (0)
1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1218#endif
850 1219
851#define expect_false(cond) ecb_expect_false (cond) 1220#define expect_false(cond) ecb_expect_false (cond)
852#define expect_true(cond) ecb_expect_true (cond) 1221#define expect_true(cond) ecb_expect_true (cond)
853#define noinline ecb_noinline 1222#define noinline ecb_noinline
854 1223
… …
1000{ 1369{
1001 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
1002} 1371}
1003#endif 1372#endif
1004 1373
1005static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
1006 1375
1007void ecb_cold 1376void ecb_cold
1008ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1009{ 1378{
1010 syserr_cb = cb; 1379 syserr_cb = cb;
1011} 1380}
1012 1381
1013static void noinline ecb_cold 1382static void noinline ecb_cold
… …
1031 abort (); 1400 abort ();
1032 } 1401 }
1033} 1402}
1034 1403
1035static void * 1404static void *
1036ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
1037{ 1406{
1038#if __GLIBC__
1039 return realloc (ptr, size);
1040#else
1041 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
1042 * 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
1043 * 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.
1044 */ 1412 */
1045 1413
1046 if (size) 1414 if (size)
1047 return realloc (ptr, size); 1415 return realloc (ptr, size);
1048 1416
1049 free (ptr); 1417 free (ptr);
1050 return 0; 1418 return 0;
1051#endif
1052} 1419}
1053 1420
1054static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1055 1422
1056void ecb_cold 1423void ecb_cold
1057ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1058{ 1425{
1059 alloc = cb; 1426 alloc = cb;
1060} 1427}
1061 1428
1062inline_speed void * 1429inline_speed void *
… …
1150 #undef VAR 1517 #undef VAR
1151 }; 1518 };
1152 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
1153 1520
1154 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
1155 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 */
1156 1523
1157#else 1524#else
1158 1525
1159 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 */
1160 #define VAR(name,decl) static decl; 1527 #define VAR(name,decl) static decl;
1161 #include "ev_vars.h" 1528 #include "ev_vars.h"
1162 #undef VAR 1529 #undef VAR
1163 1530
1164 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
… …
1179 1546
1180/*****************************************************************************/ 1547/*****************************************************************************/
1181 1548
1182#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
1183ev_tstamp 1550ev_tstamp
1184ev_time (void) 1551ev_time (void) EV_THROW
1185{ 1552{
1186#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
1187 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
1188 { 1555 {
1189 struct timespec ts; 1556 struct timespec ts;
… …
1213 return ev_time (); 1580 return ev_time ();
1214} 1581}
1215 1582
1216#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
1217ev_tstamp 1584ev_tstamp
1218ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
1219{ 1586{
1220 return ev_rt_now; 1587 return ev_rt_now;
1221} 1588}
1222#endif 1589#endif
1223 1590
1224void 1591void
1225ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
1226{ 1593{
1227 if (delay > 0.) 1594 if (delay > 0.)
1228 { 1595 {
1229#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
1230 struct timespec ts; 1597 struct timespec ts;
1231 1598
1232 EV_TS_SET (ts, delay); 1599 EV_TS_SET (ts, delay);
1233 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
1234#elif defined(_WIN32) 1601#elif defined _WIN32
1235 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
1236#else 1603#else
1237 struct timeval tv; 1604 struct timeval tv;
1238 1605
1239 /* 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 */
… …
1258 1625
1259 do 1626 do
1260 ncur <<= 1; 1627 ncur <<= 1;
1261 while (cnt > ncur); 1628 while (cnt > ncur);
1262 1629
1263 /* 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 */
1264 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1265 { 1632 {
1266 ncur *= elem; 1633 ncur *= elem;
1267 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);
1268 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
1311pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
1312{ 1679{
1313} 1680}
1314 1681
1315void noinline 1682void noinline
1316ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1317{ 1684{
1318 W w_ = (W)w; 1685 W w_ = (W)w;
1319 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
1320 1687
1321 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
1325 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
1326 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1327 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
1328 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
1329 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
1330} 1699}
1331 1700
1332inline_speed void 1701inline_speed void
1333feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
1334{ 1703{
… …
1380 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
1381 fd_event_nocheck (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
1382} 1751}
1383 1752
1384void 1753void
1385ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1386{ 1755{
1387 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
1388 fd_event_nocheck (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
1389} 1758}
1390 1759
… …
1709static void noinline ecb_cold 2078static void noinline ecb_cold
1710evpipe_init (EV_P) 2079evpipe_init (EV_P)
1711{ 2080{
1712 if (!ev_is_active (&pipe_w)) 2081 if (!ev_is_active (&pipe_w))
1713 { 2082 {
2083 int fds [2];
2084
1714# if EV_USE_EVENTFD 2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
1715 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1716 if (evfd < 0 && errno == EINVAL) 2088 if (fds [1] < 0 && errno == EINVAL)
1717 evfd = eventfd (0, 0); 2089 fds [1] = eventfd (0, 0);
1718 2090
1719 if (evfd >= 0) 2091 if (fds [1] < 0)
2092# endif
1720 { 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
1721 evpipe [0] = -1; 2102 evpipe [0] = fds [0];
1722 fd_intern (evfd); /* doing it twice doesn't hurt */ 2103
1723 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));
1724 } 2152 }
1725 else 2153 else
1726# endif 2154#endif
1727 { 2155 {
1728 while (pipe (evpipe)) 2156#ifdef _WIN32
1729 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1730 2158 DWORD sent;
1731 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1732 fd_intern (evpipe [1]); 2160 buf.len = 1;
1733 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1734 } 2162#else
1735
1736 ev_io_start (EV_A_ &pipe_w);
1737 ev_unref (EV_A); /* watcher should not keep loop alive */
1738 }
1739}
1740
1741inline_speed void
1742evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1743{
1744 if (expect_true (*flag))
1745 return;
1746
1747 *flag = 1;
1748
1749 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1750
1751 pipe_write_skipped = 1;
1752
1753 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1754
1755 if (pipe_write_wanted)
1756 {
1757 int old_errno;
1758
1759 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1760
1761 old_errno = errno; /* save errno because write will clobber it */
1762
1763#if EV_USE_EVENTFD
1764 if (evfd >= 0)
1765 {
1766 uint64_t counter = 1;
1767 write (evfd, &counter, sizeof (uint64_t));
1768 }
1769 else
1770#endif
1771 {
1772 /* win32 people keep sending patches that change this write() to send() */
1773 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1774 /* so when you think this write should be a send instead, please find out */
1775 /* where your send() is from - it's definitely not the microsoft send, and */
1776 /* tell me. thank you. */
1777 write (evpipe [1], &(evpipe [1]), 1); 2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1778 } 2165 }
1779 2166
1780 errno = old_errno; 2167 errno = old_errno;
1781 } 2168 }
1782} 2169}
… …
1789 int i; 2176 int i;
1790 2177
1791 if (revents & EV_READ) 2178 if (revents & EV_READ)
1792 { 2179 {
1793#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1794 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1795 { 2182 {
1796 uint64_t counter; 2183 uint64_t counter;
1797 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1798 } 2185 }
1799 else 2186 else
1800#endif 2187#endif
1801 { 2188 {
1802 char dummy; 2189 char dummy[4];
1803 /* 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
1804 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
1805 } 2200 }
1806 } 2201 }
1807 2202
1808 pipe_write_skipped = 0; 2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1809 2206
1810#if EV_SIGNAL_ENABLE 2207#if EV_SIGNAL_ENABLE
1811 if (sig_pending) 2208 if (sig_pending)
1812 { 2209 {
1813 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1814 2213
1815 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1816 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1817 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1818 } 2217 }
… …
1820 2219
1821#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1822 if (async_pending) 2221 if (async_pending)
1823 { 2222 {
1824 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1825 2226
1826 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1827 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1828 { 2229 {
1829 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1830 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1831 } 2233 }
1832 } 2234 }
1833#endif 2235#endif
1834} 2236}
1835 2237
1836/*****************************************************************************/ 2238/*****************************************************************************/
1837 2239
1838void 2240void
1839ev_feed_signal (int signum) 2241ev_feed_signal (int signum) EV_THROW
1840{ 2242{
1841#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
2244 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE;
1842 EV_P = signals [signum - 1].loop; 2246 EV_A = signals [signum - 1].loop;
1843 2247
1844 if (!EV_A) 2248 if (!EV_A)
1845 return; 2249 return;
1846#endif 2250#endif
1847 2251
1848 if (!ev_active (&pipe_w))
1849 return;
1850
1851 signals [signum - 1].pending = 1; 2252 signals [signum - 1].pending = 1;
1852 evpipe_write (EV_A_ &sig_pending); 2253 evpipe_write (EV_A_ &sig_pending);
1853} 2254}
1854 2255
1855static void 2256static void
… …
1861 2262
1862 ev_feed_signal (signum); 2263 ev_feed_signal (signum);
1863} 2264}
1864 2265
1865void noinline 2266void noinline
1866ev_feed_signal_event (EV_P_ int signum) 2267ev_feed_signal_event (EV_P_ int signum) EV_THROW
1867{ 2268{
1868 WL w; 2269 WL w;
1869 2270
1870 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2271 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1871 return; 2272 return;
1872 2273
1873 --signum; 2274 --signum;
1874 2275
1875#if EV_MULTIPLICITY 2276#if EV_MULTIPLICITY
… …
1879 if (expect_false (signals [signum].loop != EV_A)) 2280 if (expect_false (signals [signum].loop != EV_A))
1880 return; 2281 return;
1881#endif 2282#endif
1882 2283
1883 signals [signum].pending = 0; 2284 signals [signum].pending = 0;
2285 ECB_MEMORY_FENCE_RELEASE;
1884 2286
1885 for (w = signals [signum].head; w; w = w->next) 2287 for (w = signals [signum].head; w; w = w->next)
1886 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2288 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1887} 2289}
1888 2290
… …
1987#if EV_USE_SELECT 2389#if EV_USE_SELECT
1988# include "ev_select.c" 2390# include "ev_select.c"
1989#endif 2391#endif
1990 2392
1991int ecb_cold 2393int ecb_cold
1992ev_version_major (void) 2394ev_version_major (void) EV_THROW
1993{ 2395{
1994 return EV_VERSION_MAJOR; 2396 return EV_VERSION_MAJOR;
1995} 2397}
1996 2398
1997int ecb_cold 2399int ecb_cold
1998ev_version_minor (void) 2400ev_version_minor (void) EV_THROW
1999{ 2401{
2000 return EV_VERSION_MINOR; 2402 return EV_VERSION_MINOR;
2001} 2403}
2002 2404
2003/* 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 */
… …
2011 || getgid () != getegid (); 2413 || getgid () != getegid ();
2012#endif 2414#endif
2013} 2415}
2014 2416
2015unsigned int ecb_cold 2417unsigned int ecb_cold
2016ev_supported_backends (void) 2418ev_supported_backends (void) EV_THROW
2017{ 2419{
2018 unsigned int flags = 0; 2420 unsigned int flags = 0;
2019 2421
2020 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2021 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2025 2427
2026 return flags; 2428 return flags;
2027} 2429}
2028 2430
2029unsigned int ecb_cold 2431unsigned int ecb_cold
2030ev_recommended_backends (void) 2432ev_recommended_backends (void) EV_THROW
2031{ 2433{
2032 unsigned int flags = ev_supported_backends (); 2434 unsigned int flags = ev_supported_backends ();
2033 2435
2034#ifndef __NetBSD__ 2436#ifndef __NetBSD__
2035 /* kqueue is borked on everything but netbsd apparently */ 2437 /* kqueue is borked on everything but netbsd apparently */
… …
2047 2449
2048 return flags; 2450 return flags;
2049} 2451}
2050 2452
2051unsigned int ecb_cold 2453unsigned int ecb_cold
2052ev_embeddable_backends (void) 2454ev_embeddable_backends (void) EV_THROW
2053{ 2455{
2054 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2055 2457
2056 /* 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 */
2057 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 */
… …
2059 2461
2060 return flags; 2462 return flags;
2061} 2463}
2062 2464
2063unsigned int 2465unsigned int
2064ev_backend (EV_P) 2466ev_backend (EV_P) EV_THROW
2065{ 2467{
2066 return backend; 2468 return backend;
2067} 2469}
2068 2470
2069#if EV_FEATURE_API 2471#if EV_FEATURE_API
2070unsigned int 2472unsigned int
2071ev_iteration (EV_P) 2473ev_iteration (EV_P) EV_THROW
2072{ 2474{
2073 return loop_count; 2475 return loop_count;
2074} 2476}
2075 2477
2076unsigned int 2478unsigned int
2077ev_depth (EV_P) 2479ev_depth (EV_P) EV_THROW
2078{ 2480{
2079 return loop_depth; 2481 return loop_depth;
2080} 2482}
2081 2483
2082void 2484void
2083ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2084{ 2486{
2085 io_blocktime = interval; 2487 io_blocktime = interval;
2086} 2488}
2087 2489
2088void 2490void
2089ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2090{ 2492{
2091 timeout_blocktime = interval; 2493 timeout_blocktime = interval;
2092} 2494}
2093 2495
2094void 2496void
2095ev_set_userdata (EV_P_ void *data) 2497ev_set_userdata (EV_P_ void *data) EV_THROW
2096{ 2498{
2097 userdata = data; 2499 userdata = data;
2098} 2500}
2099 2501
2100void * 2502void *
2101ev_userdata (EV_P) 2503ev_userdata (EV_P) EV_THROW
2102{ 2504{
2103 return userdata; 2505 return userdata;
2104} 2506}
2105 2507
2106void 2508void
2107ev_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
2108{ 2510{
2109 invoke_cb = invoke_pending_cb; 2511 invoke_cb = invoke_pending_cb;
2110} 2512}
2111 2513
2112void 2514void
2113ev_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
2114{ 2516{
2115 release_cb = release; 2517 release_cb = release;
2116 acquire_cb = acquire; 2518 acquire_cb = acquire;
2117} 2519}
2118#endif 2520#endif
2119 2521
2120/* initialise a loop structure, must be zero-initialised */ 2522/* initialise a loop structure, must be zero-initialised */
2121static void noinline ecb_cold 2523static void noinline ecb_cold
2122loop_init (EV_P_ unsigned int flags) 2524loop_init (EV_P_ unsigned int flags) EV_THROW
2123{ 2525{
2124 if (!backend) 2526 if (!backend)
2125 { 2527 {
2126 origflags = flags; 2528 origflags = flags;
2127 2529
… …
2172#if EV_ASYNC_ENABLE 2574#if EV_ASYNC_ENABLE
2173 async_pending = 0; 2575 async_pending = 0;
2174#endif 2576#endif
2175 pipe_write_skipped = 0; 2577 pipe_write_skipped = 0;
2176 pipe_write_wanted = 0; 2578 pipe_write_wanted = 0;
2579 evpipe [0] = -1;
2580 evpipe [1] = -1;
2177#if EV_USE_INOTIFY 2581#if EV_USE_INOTIFY
2178 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2179#endif 2583#endif
2180#if EV_USE_SIGNALFD 2584#if EV_USE_SIGNALFD
2181 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2585 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2232 EV_INVOKE_PENDING; 2636 EV_INVOKE_PENDING;
2233 } 2637 }
2234#endif 2638#endif
2235 2639
2236#if EV_CHILD_ENABLE 2640#if EV_CHILD_ENABLE
2237 if (ev_is_active (&childev)) 2641 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2238 { 2642 {
2239 ev_ref (EV_A); /* child watcher */ 2643 ev_ref (EV_A); /* child watcher */
2240 ev_signal_stop (EV_A_ &childev); 2644 ev_signal_stop (EV_A_ &childev);
2241 } 2645 }
2242#endif 2646#endif
… …
2244 if (ev_is_active (&pipe_w)) 2648 if (ev_is_active (&pipe_w))
2245 { 2649 {
2246 /*ev_ref (EV_A);*/ 2650 /*ev_ref (EV_A);*/
2247 /*ev_io_stop (EV_A_ &pipe_w);*/ 2651 /*ev_io_stop (EV_A_ &pipe_w);*/
2248 2652
2249#if EV_USE_EVENTFD
2250 if (evfd >= 0)
2251 close (evfd);
2252#endif
2253
2254 if (evpipe [0] >= 0)
2255 {
2256 EV_WIN32_CLOSE_FD (evpipe [0]); 2653 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2257 EV_WIN32_CLOSE_FD (evpipe [1]); 2654 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2258 }
2259 } 2655 }
2260 2656
2261#if EV_USE_SIGNALFD 2657#if EV_USE_SIGNALFD
2262 if (ev_is_active (&sigfd_w)) 2658 if (ev_is_active (&sigfd_w))
2263 close (sigfd); 2659 close (sigfd);
… …
2349#endif 2745#endif
2350#if EV_USE_INOTIFY 2746#if EV_USE_INOTIFY
2351 infy_fork (EV_A); 2747 infy_fork (EV_A);
2352#endif 2748#endif
2353 2749
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2354 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
2355 { 2752 {
2356 /* 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 */
2357 2754
2358 ev_ref (EV_A); 2755 ev_ref (EV_A);
2359 ev_io_stop (EV_A_ &pipe_w); 2756 ev_io_stop (EV_A_ &pipe_w);
2360 2757
2361#if EV_USE_EVENTFD
2362 if (evfd >= 0)
2363 close (evfd);
2364#endif
2365
2366 if (evpipe [0] >= 0) 2758 if (evpipe [0] >= 0)
2367 {
2368 EV_WIN32_CLOSE_FD (evpipe [0]); 2759 EV_WIN32_CLOSE_FD (evpipe [0]);
2369 EV_WIN32_CLOSE_FD (evpipe [1]);
2370 }
2371 2760
2372#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2373 evpipe_init (EV_A); 2761 evpipe_init (EV_A);
2374 /* now iterate over everything, in case we missed something */ 2762 /* iterate over everything, in case we missed something before */
2375 pipecb (EV_A_ &pipe_w, EV_READ); 2763 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2376#endif
2377 } 2764 }
2765#endif
2378 2766
2379 postfork = 0; 2767 postfork = 0;
2380} 2768}
2381 2769
2382#if EV_MULTIPLICITY 2770#if EV_MULTIPLICITY
2383 2771
2384struct ev_loop * ecb_cold 2772struct ev_loop * ecb_cold
2385ev_loop_new (unsigned int flags) 2773ev_loop_new (unsigned int flags) EV_THROW
2386{ 2774{
2387 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2388 2776
2389 memset (EV_A, 0, sizeof (struct ev_loop)); 2777 memset (EV_A, 0, sizeof (struct ev_loop));
2390 loop_init (EV_A_ flags); 2778 loop_init (EV_A_ flags);
… …
2434} 2822}
2435#endif 2823#endif
2436 2824
2437#if EV_FEATURE_API 2825#if EV_FEATURE_API
2438void ecb_cold 2826void ecb_cold
2439ev_verify (EV_P) 2827ev_verify (EV_P) EV_THROW
2440{ 2828{
2441#if EV_VERIFY 2829#if EV_VERIFY
2442 int i; 2830 int i;
2443 WL w; 2831 WL w, w2;
2444 2832
2445 assert (activecnt >= -1); 2833 assert (activecnt >= -1);
2446 2834
2447 assert (fdchangemax >= fdchangecnt); 2835 assert (fdchangemax >= fdchangecnt);
2448 for (i = 0; i < fdchangecnt; ++i) 2836 for (i = 0; i < fdchangecnt; ++i)
2449 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2837 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2450 2838
2451 assert (anfdmax >= 0); 2839 assert (anfdmax >= 0);
2452 for (i = 0; i < anfdmax; ++i) 2840 for (i = 0; i < anfdmax; ++i)
2841 {
2842 int j = 0;
2843
2453 for (w = anfds [i].head; w; w = w->next) 2844 for (w = w2 = anfds [i].head; w; w = w->next)
2454 { 2845 {
2455 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
2456 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));
2457 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));
2458 } 2856 }
2857 }
2459 2858
2460 assert (timermax >= timercnt); 2859 assert (timermax >= timercnt);
2461 verify_heap (EV_A_ timers, timercnt); 2860 verify_heap (EV_A_ timers, timercnt);
2462 2861
2463#if EV_PERIODIC_ENABLE 2862#if EV_PERIODIC_ENABLE
… …
2513#if EV_MULTIPLICITY 2912#if EV_MULTIPLICITY
2514struct ev_loop * ecb_cold 2913struct ev_loop * ecb_cold
2515#else 2914#else
2516int 2915int
2517#endif 2916#endif
2518ev_default_loop (unsigned int flags) 2917ev_default_loop (unsigned int flags) EV_THROW
2519{ 2918{
2520 if (!ev_default_loop_ptr) 2919 if (!ev_default_loop_ptr)
2521 { 2920 {
2522#if EV_MULTIPLICITY 2921#if EV_MULTIPLICITY
2523 EV_P = ev_default_loop_ptr = &default_loop_struct; 2922 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2542 2941
2543 return ev_default_loop_ptr; 2942 return ev_default_loop_ptr;
2544} 2943}
2545 2944
2546void 2945void
2547ev_loop_fork (EV_P) 2946ev_loop_fork (EV_P) EV_THROW
2548{ 2947{
2549 postfork = 1; /* must be in line with ev_default_fork */ 2948 postfork = 1;
2550} 2949}
2551 2950
2552/*****************************************************************************/ 2951/*****************************************************************************/
2553 2952
2554void 2953void
… …
2556{ 2955{
2557 EV_CB_INVOKE ((W)w, revents); 2956 EV_CB_INVOKE ((W)w, revents);
2558} 2957}
2559 2958
2560unsigned int 2959unsigned int
2561ev_pending_count (EV_P) 2960ev_pending_count (EV_P) EV_THROW
2562{ 2961{
2563 int pri; 2962 int pri;
2564 unsigned int count = 0; 2963 unsigned int count = 0;
2565 2964
2566 for (pri = NUMPRI; pri--; ) 2965 for (pri = NUMPRI; pri--; )
… …
2570} 2969}
2571 2970
2572void noinline 2971void noinline
2573ev_invoke_pending (EV_P) 2972ev_invoke_pending (EV_P)
2574{ 2973{
2575 int pri; 2974 pendingpri = NUMPRI;
2576 2975
2577 for (pri = NUMPRI; pri--; ) 2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2977 {
2978 --pendingpri;
2979
2578 while (pendingcnt [pri]) 2980 while (pendingcnt [pendingpri])
2579 { 2981 {
2580 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2581 2983
2582 p->w->pending = 0; 2984 p->w->pending = 0;
2583 EV_CB_INVOKE (p->w, p->events); 2985 EV_CB_INVOKE (p->w, p->events);
2584 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
2585 } 2987 }
2988 }
2586} 2989}
2587 2990
2588#if EV_IDLE_ENABLE 2991#if EV_IDLE_ENABLE
2589/* make idle watchers pending. this handles the "call-idle */ 2992/* make idle watchers pending. this handles the "call-idle */
2590/* only when higher priorities are idle" logic */ 2993/* only when higher priorities are idle" logic */
… …
2680{ 3083{
2681 EV_FREQUENT_CHECK; 3084 EV_FREQUENT_CHECK;
2682 3085
2683 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3086 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2684 { 3087 {
2685 int feed_count = 0;
2686
2687 do 3088 do
2688 { 3089 {
2689 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3090 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2690 3091
2691 /*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)));*/
… …
2825 3226
2826 mn_now = ev_rt_now; 3227 mn_now = ev_rt_now;
2827 } 3228 }
2828} 3229}
2829 3230
2830void 3231int
2831ev_run (EV_P_ int flags) 3232ev_run (EV_P_ int flags)
2832{ 3233{
2833#if EV_FEATURE_API 3234#if EV_FEATURE_API
2834 ++loop_depth; 3235 ++loop_depth;
2835#endif 3236#endif
… …
2948#endif 3349#endif
2949 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3350 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2950 backend_poll (EV_A_ waittime); 3351 backend_poll (EV_A_ waittime);
2951 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3352 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2952 3353
2953 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3354 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2954 3355
3356 ECB_MEMORY_FENCE_ACQUIRE;
2955 if (pipe_write_skipped) 3357 if (pipe_write_skipped)
2956 { 3358 {
2957 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)));
2958 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3360 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2959 } 3361 }
… …
2992 loop_done = EVBREAK_CANCEL; 3394 loop_done = EVBREAK_CANCEL;
2993 3395
2994#if EV_FEATURE_API 3396#if EV_FEATURE_API
2995 --loop_depth; 3397 --loop_depth;
2996#endif 3398#endif
3399
3400 return activecnt;
2997} 3401}
2998 3402
2999void 3403void
3000ev_break (EV_P_ int how) 3404ev_break (EV_P_ int how) EV_THROW
3001{ 3405{
3002 loop_done = how; 3406 loop_done = how;
3003} 3407}
3004 3408
3005void 3409void
3006ev_ref (EV_P) 3410ev_ref (EV_P) EV_THROW
3007{ 3411{
3008 ++activecnt; 3412 ++activecnt;
3009} 3413}
3010 3414
3011void 3415void
3012ev_unref (EV_P) 3416ev_unref (EV_P) EV_THROW
3013{ 3417{
3014 --activecnt; 3418 --activecnt;
3015} 3419}
3016 3420
3017void 3421void
3018ev_now_update (EV_P) 3422ev_now_update (EV_P) EV_THROW
3019{ 3423{
3020 time_update (EV_A_ 1e100); 3424 time_update (EV_A_ 1e100);
3021} 3425}
3022 3426
3023void 3427void
3024ev_suspend (EV_P) 3428ev_suspend (EV_P) EV_THROW
3025{ 3429{
3026 ev_now_update (EV_A); 3430 ev_now_update (EV_A);
3027} 3431}
3028 3432
3029void 3433void
3030ev_resume (EV_P) 3434ev_resume (EV_P) EV_THROW
3031{ 3435{
3032 ev_tstamp mn_prev = mn_now; 3436 ev_tstamp mn_prev = mn_now;
3033 3437
3034 ev_now_update (EV_A); 3438 ev_now_update (EV_A);
3035 timers_reschedule (EV_A_ mn_now - mn_prev); 3439 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3074 w->pending = 0; 3478 w->pending = 0;
3075 } 3479 }
3076} 3480}
3077 3481
3078int 3482int
3079ev_clear_pending (EV_P_ void *w) 3483ev_clear_pending (EV_P_ void *w) EV_THROW
3080{ 3484{
3081 W w_ = (W)w; 3485 W w_ = (W)w;
3082 int pending = w_->pending; 3486 int pending = w_->pending;
3083 3487
3084 if (expect_true (pending)) 3488 if (expect_true (pending))
… …
3117} 3521}
3118 3522
3119/*****************************************************************************/ 3523/*****************************************************************************/
3120 3524
3121void noinline 3525void noinline
3122ev_io_start (EV_P_ ev_io *w) 3526ev_io_start (EV_P_ ev_io *w) EV_THROW
3123{ 3527{
3124 int fd = w->fd; 3528 int fd = w->fd;
3125 3529
3126 if (expect_false (ev_is_active (w))) 3530 if (expect_false (ev_is_active (w)))
3127 return; 3531 return;
… …
3133 3537
3134 ev_start (EV_A_ (W)w, 1); 3538 ev_start (EV_A_ (W)w, 1);
3135 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3136 wlist_add (&anfds[fd].head, (WL)w); 3540 wlist_add (&anfds[fd].head, (WL)w);
3137 3541
3542 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544
3138 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);
3139 w->events &= ~EV__IOFDSET; 3546 w->events &= ~EV__IOFDSET;
3140 3547
3141 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
3142} 3549}
3143 3550
3144void noinline 3551void noinline
3145ev_io_stop (EV_P_ ev_io *w) 3552ev_io_stop (EV_P_ ev_io *w) EV_THROW
3146{ 3553{
3147 clear_pending (EV_A_ (W)w); 3554 clear_pending (EV_A_ (W)w);
3148 if (expect_false (!ev_is_active (w))) 3555 if (expect_false (!ev_is_active (w)))
3149 return; 3556 return;
3150 3557
… …
3159 3566
3160 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
3161} 3568}
3162 3569
3163void noinline 3570void noinline
3164ev_timer_start (EV_P_ ev_timer *w) 3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3165{ 3572{
3166 if (expect_false (ev_is_active (w))) 3573 if (expect_false (ev_is_active (w)))
3167 return; 3574 return;
3168 3575
3169 ev_at (w) += mn_now; 3576 ev_at (w) += mn_now;
… …
3183 3590
3184 /*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));*/
3185} 3592}
3186 3593
3187void noinline 3594void noinline
3188ev_timer_stop (EV_P_ ev_timer *w) 3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3189{ 3596{
3190 clear_pending (EV_A_ (W)w); 3597 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 3598 if (expect_false (!ev_is_active (w)))
3192 return; 3599 return;
3193 3600
… …
3213 3620
3214 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
3215} 3622}
3216 3623
3217void noinline 3624void noinline
3218ev_timer_again (EV_P_ ev_timer *w) 3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3219{ 3626{
3220 EV_FREQUENT_CHECK; 3627 EV_FREQUENT_CHECK;
3628
3629 clear_pending (EV_A_ (W)w);
3221 3630
3222 if (ev_is_active (w)) 3631 if (ev_is_active (w))
3223 { 3632 {
3224 if (w->repeat) 3633 if (w->repeat)
3225 { 3634 {
… …
3238 3647
3239 EV_FREQUENT_CHECK; 3648 EV_FREQUENT_CHECK;
3240} 3649}
3241 3650
3242ev_tstamp 3651ev_tstamp
3243ev_timer_remaining (EV_P_ ev_timer *w) 3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3244{ 3653{
3245 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3246} 3655}
3247 3656
3248#if EV_PERIODIC_ENABLE 3657#if EV_PERIODIC_ENABLE
3249void noinline 3658void noinline
3250ev_periodic_start (EV_P_ ev_periodic *w) 3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3251{ 3660{
3252 if (expect_false (ev_is_active (w))) 3661 if (expect_false (ev_is_active (w)))
3253 return; 3662 return;
3254 3663
3255 if (w->reschedule_cb) 3664 if (w->reschedule_cb)
… …
3275 3684
3276 /*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));*/
3277} 3686}
3278 3687
3279void noinline 3688void noinline
3280ev_periodic_stop (EV_P_ ev_periodic *w) 3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3281{ 3690{
3282 clear_pending (EV_A_ (W)w); 3691 clear_pending (EV_A_ (W)w);
3283 if (expect_false (!ev_is_active (w))) 3692 if (expect_false (!ev_is_active (w)))
3284 return; 3693 return;
3285 3694
… …
3303 3712
3304 EV_FREQUENT_CHECK; 3713 EV_FREQUENT_CHECK;
3305} 3714}
3306 3715
3307void noinline 3716void noinline
3308ev_periodic_again (EV_P_ ev_periodic *w) 3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3309{ 3718{
3310 /* TODO: use adjustheap and recalculation */ 3719 /* TODO: use adjustheap and recalculation */
3311 ev_periodic_stop (EV_A_ w); 3720 ev_periodic_stop (EV_A_ w);
3312 ev_periodic_start (EV_A_ w); 3721 ev_periodic_start (EV_A_ w);
3313} 3722}
… …
3318#endif 3727#endif
3319 3728
3320#if EV_SIGNAL_ENABLE 3729#if EV_SIGNAL_ENABLE
3321 3730
3322void noinline 3731void noinline
3323ev_signal_start (EV_P_ ev_signal *w) 3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3324{ 3733{
3325 if (expect_false (ev_is_active (w))) 3734 if (expect_false (ev_is_active (w)))
3326 return; 3735 return;
3327 3736
3328 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));
… …
3330#if EV_MULTIPLICITY 3739#if EV_MULTIPLICITY
3331 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",
3332 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3741 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3333 3742
3334 signals [w->signum - 1].loop = EV_A; 3743 signals [w->signum - 1].loop = EV_A;
3744 ECB_MEMORY_FENCE_RELEASE;
3335#endif 3745#endif
3336 3746
3337 EV_FREQUENT_CHECK; 3747 EV_FREQUENT_CHECK;
3338 3748
3339#if EV_USE_SIGNALFD 3749#if EV_USE_SIGNALFD
… …
3399 3809
3400 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
3401} 3811}
3402 3812
3403void noinline 3813void noinline
3404ev_signal_stop (EV_P_ ev_signal *w) 3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3405{ 3815{
3406 clear_pending (EV_A_ (W)w); 3816 clear_pending (EV_A_ (W)w);
3407 if (expect_false (!ev_is_active (w))) 3817 if (expect_false (!ev_is_active (w)))
3408 return; 3818 return;
3409 3819
… …
3440#endif 3850#endif
3441 3851
3442#if EV_CHILD_ENABLE 3852#if EV_CHILD_ENABLE
3443 3853
3444void 3854void
3445ev_child_start (EV_P_ ev_child *w) 3855ev_child_start (EV_P_ ev_child *w) EV_THROW
3446{ 3856{
3447#if EV_MULTIPLICITY 3857#if EV_MULTIPLICITY
3448 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));
3449#endif 3859#endif
3450 if (expect_false (ev_is_active (w))) 3860 if (expect_false (ev_is_active (w)))
… …
3457 3867
3458 EV_FREQUENT_CHECK; 3868 EV_FREQUENT_CHECK;
3459} 3869}
3460 3870
3461void 3871void
3462ev_child_stop (EV_P_ ev_child *w) 3872ev_child_stop (EV_P_ ev_child *w) EV_THROW
3463{ 3873{
3464 clear_pending (EV_A_ (W)w); 3874 clear_pending (EV_A_ (W)w);
3465 if (expect_false (!ev_is_active (w))) 3875 if (expect_false (!ev_is_active (w)))
3466 return; 3876 return;
3467 3877
… …
3494# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3495 3905
3496static void noinline 3906static void noinline
3497infy_add (EV_P_ ev_stat *w) 3907infy_add (EV_P_ ev_stat *w)
3498{ 3908{
3499 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 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);
3500 3913
3501 if (w->wd >= 0) 3914 if (w->wd >= 0)
3502 { 3915 {
3503 struct statfs sfs; 3916 struct statfs sfs;
3504 3917
… …
3508 3921
3509 if (!fs_2625) 3922 if (!fs_2625)
3510 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3923 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3511 else if (!statfs (w->path, &sfs) 3924 else if (!statfs (w->path, &sfs)
3512 && (sfs.f_type == 0x1373 /* devfs */ 3925 && (sfs.f_type == 0x1373 /* devfs */
3926 || sfs.f_type == 0x4006 /* fat */
3927 || sfs.f_type == 0x4d44 /* msdos */
3513 || 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 */
3514 || sfs.f_type == 0x3153464a /* jfs */ 3932 || sfs.f_type == 0x3153464a /* jfs */
3933 || sfs.f_type == 0x9123683e /* btrfs */
3515 || sfs.f_type == 0x52654973 /* reiser3 */ 3934 || sfs.f_type == 0x52654973 /* reiser3 */
3516 || sfs.f_type == 0x01021994 /* tempfs */ 3935 || sfs.f_type == 0x01021994 /* tmpfs */
3517 || sfs.f_type == 0x58465342 /* xfs */)) 3936 || sfs.f_type == 0x58465342 /* xfs */))
3518 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3937 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3519 else 3938 else
3520 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 */
3521 } 3940 }
… …
3634} 4053}
3635 4054
3636inline_size int 4055inline_size int
3637infy_newfd (void) 4056infy_newfd (void)
3638{ 4057{
3639#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4058#if defined IN_CLOEXEC && defined IN_NONBLOCK
3640 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4059 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3641 if (fd >= 0) 4060 if (fd >= 0)
3642 return fd; 4061 return fd;
3643#endif 4062#endif
3644 return inotify_init (); 4063 return inotify_init ();
… …
3719#else 4138#else
3720# define EV_LSTAT(p,b) lstat (p, b) 4139# define EV_LSTAT(p,b) lstat (p, b)
3721#endif 4140#endif
3722 4141
3723void 4142void
3724ev_stat_stat (EV_P_ ev_stat *w) 4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3725{ 4144{
3726 if (lstat (w->path, &w->attr) < 0) 4145 if (lstat (w->path, &w->attr) < 0)
3727 w->attr.st_nlink = 0; 4146 w->attr.st_nlink = 0;
3728 else if (!w->attr.st_nlink) 4147 else if (!w->attr.st_nlink)
3729 w->attr.st_nlink = 1; 4148 w->attr.st_nlink = 1;
… …
3768 ev_feed_event (EV_A_ w, EV_STAT); 4187 ev_feed_event (EV_A_ w, EV_STAT);
3769 } 4188 }
3770} 4189}
3771 4190
3772void 4191void
3773ev_stat_start (EV_P_ ev_stat *w) 4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3774{ 4193{
3775 if (expect_false (ev_is_active (w))) 4194 if (expect_false (ev_is_active (w)))
3776 return; 4195 return;
3777 4196
3778 ev_stat_stat (EV_A_ w); 4197 ev_stat_stat (EV_A_ w);
… …
3799 4218
3800 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3801} 4220}
3802 4221
3803void 4222void
3804ev_stat_stop (EV_P_ ev_stat *w) 4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3805{ 4224{
3806 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3807 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3808 return; 4227 return;
3809 4228
… …
3825} 4244}
3826#endif 4245#endif
3827 4246
3828#if EV_IDLE_ENABLE 4247#if EV_IDLE_ENABLE
3829void 4248void
3830ev_idle_start (EV_P_ ev_idle *w) 4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3831{ 4250{
3832 if (expect_false (ev_is_active (w))) 4251 if (expect_false (ev_is_active (w)))
3833 return; 4252 return;
3834 4253
3835 pri_adjust (EV_A_ (W)w); 4254 pri_adjust (EV_A_ (W)w);
… …
3848 4267
3849 EV_FREQUENT_CHECK; 4268 EV_FREQUENT_CHECK;
3850} 4269}
3851 4270
3852void 4271void
3853ev_idle_stop (EV_P_ ev_idle *w) 4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3854{ 4273{
3855 clear_pending (EV_A_ (W)w); 4274 clear_pending (EV_A_ (W)w);
3856 if (expect_false (!ev_is_active (w))) 4275 if (expect_false (!ev_is_active (w)))
3857 return; 4276 return;
3858 4277
… …
3872} 4291}
3873#endif 4292#endif
3874 4293
3875#if EV_PREPARE_ENABLE 4294#if EV_PREPARE_ENABLE
3876void 4295void
3877ev_prepare_start (EV_P_ ev_prepare *w) 4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3878{ 4297{
3879 if (expect_false (ev_is_active (w))) 4298 if (expect_false (ev_is_active (w)))
3880 return; 4299 return;
3881 4300
3882 EV_FREQUENT_CHECK; 4301 EV_FREQUENT_CHECK;
… …
3887 4306
3888 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
3889} 4308}
3890 4309
3891void 4310void
3892ev_prepare_stop (EV_P_ ev_prepare *w) 4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3893{ 4312{
3894 clear_pending (EV_A_ (W)w); 4313 clear_pending (EV_A_ (W)w);
3895 if (expect_false (!ev_is_active (w))) 4314 if (expect_false (!ev_is_active (w)))
3896 return; 4315 return;
3897 4316
… …
3910} 4329}
3911#endif 4330#endif
3912 4331
3913#if EV_CHECK_ENABLE 4332#if EV_CHECK_ENABLE
3914void 4333void
3915ev_check_start (EV_P_ ev_check *w) 4334ev_check_start (EV_P_ ev_check *w) EV_THROW
3916{ 4335{
3917 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3918 return; 4337 return;
3919 4338
3920 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
… …
3925 4344
3926 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3927} 4346}
3928 4347
3929void 4348void
3930ev_check_stop (EV_P_ ev_check *w) 4349ev_check_stop (EV_P_ ev_check *w) EV_THROW
3931{ 4350{
3932 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3933 if (expect_false (!ev_is_active (w))) 4352 if (expect_false (!ev_is_active (w)))
3934 return; 4353 return;
3935 4354
… …
3948} 4367}
3949#endif 4368#endif
3950 4369
3951#if EV_EMBED_ENABLE 4370#if EV_EMBED_ENABLE
3952void noinline 4371void noinline
3953ev_embed_sweep (EV_P_ ev_embed *w) 4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3954{ 4373{
3955 ev_run (w->other, EVRUN_NOWAIT); 4374 ev_run (w->other, EVRUN_NOWAIT);
3956} 4375}
3957 4376
3958static void 4377static void
… …
4006 ev_idle_stop (EV_A_ idle); 4425 ev_idle_stop (EV_A_ idle);
4007} 4426}
4008#endif 4427#endif
4009 4428
4010void 4429void
4011ev_embed_start (EV_P_ ev_embed *w) 4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4012{ 4431{
4013 if (expect_false (ev_is_active (w))) 4432 if (expect_false (ev_is_active (w)))
4014 return; 4433 return;
4015 4434
4016 { 4435 {
… …
4037 4456
4038 EV_FREQUENT_CHECK; 4457 EV_FREQUENT_CHECK;
4039} 4458}
4040 4459
4041void 4460void
4042ev_embed_stop (EV_P_ ev_embed *w) 4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4043{ 4462{
4044 clear_pending (EV_A_ (W)w); 4463 clear_pending (EV_A_ (W)w);
4045 if (expect_false (!ev_is_active (w))) 4464 if (expect_false (!ev_is_active (w)))
4046 return; 4465 return;
4047 4466
… …
4057} 4476}
4058#endif 4477#endif
4059 4478
4060#if EV_FORK_ENABLE 4479#if EV_FORK_ENABLE
4061void 4480void
4062ev_fork_start (EV_P_ ev_fork *w) 4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4063{ 4482{
4064 if (expect_false (ev_is_active (w))) 4483 if (expect_false (ev_is_active (w)))
4065 return; 4484 return;
4066 4485
4067 EV_FREQUENT_CHECK; 4486 EV_FREQUENT_CHECK;
… …
4072 4491
4073 EV_FREQUENT_CHECK; 4492 EV_FREQUENT_CHECK;
4074} 4493}
4075 4494
4076void 4495void
4077ev_fork_stop (EV_P_ ev_fork *w) 4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4078{ 4497{
4079 clear_pending (EV_A_ (W)w); 4498 clear_pending (EV_A_ (W)w);
4080 if (expect_false (!ev_is_active (w))) 4499 if (expect_false (!ev_is_active (w)))
4081 return; 4500 return;
4082 4501
… …
4095} 4514}
4096#endif 4515#endif
4097 4516
4098#if EV_CLEANUP_ENABLE 4517#if EV_CLEANUP_ENABLE
4099void 4518void
4100ev_cleanup_start (EV_P_ ev_cleanup *w) 4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4101{ 4520{
4102 if (expect_false (ev_is_active (w))) 4521 if (expect_false (ev_is_active (w)))
4103 return; 4522 return;
4104 4523
4105 EV_FREQUENT_CHECK; 4524 EV_FREQUENT_CHECK;
… …
4112 ev_unref (EV_A); 4531 ev_unref (EV_A);
4113 EV_FREQUENT_CHECK; 4532 EV_FREQUENT_CHECK;
4114} 4533}
4115 4534
4116void 4535void
4117ev_cleanup_stop (EV_P_ ev_cleanup *w) 4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4118{ 4537{
4119 clear_pending (EV_A_ (W)w); 4538 clear_pending (EV_A_ (W)w);
4120 if (expect_false (!ev_is_active (w))) 4539 if (expect_false (!ev_is_active (w)))
4121 return; 4540 return;
4122 4541
… …
4136} 4555}
4137#endif 4556#endif
4138 4557
4139#if EV_ASYNC_ENABLE 4558#if EV_ASYNC_ENABLE
4140void 4559void
4141ev_async_start (EV_P_ ev_async *w) 4560ev_async_start (EV_P_ ev_async *w) EV_THROW
4142{ 4561{
4143 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
4144 return; 4563 return;
4145 4564
4146 w->sent = 0; 4565 w->sent = 0;
… …
4155 4574
4156 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4157} 4576}
4158 4577
4159void 4578void
4160ev_async_stop (EV_P_ ev_async *w) 4579ev_async_stop (EV_P_ ev_async *w) EV_THROW
4161{ 4580{
4162 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4164 return; 4583 return;
4165 4584
… …
4176 4595
4177 EV_FREQUENT_CHECK; 4596 EV_FREQUENT_CHECK;
4178} 4597}
4179 4598
4180void 4599void
4181ev_async_send (EV_P_ ev_async *w) 4600ev_async_send (EV_P_ ev_async *w) EV_THROW
4182{ 4601{
4183 w->sent = 1; 4602 w->sent = 1;
4184 evpipe_write (EV_A_ &async_pending); 4603 evpipe_write (EV_A_ &async_pending);
4185} 4604}
4186#endif 4605#endif
… …
4223 4642
4224 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));
4225} 4644}
4226 4645
4227void 4646void
4228ev_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
4229{ 4648{
4230 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));
4231 4650
4232 if (expect_false (!once)) 4651 if (expect_false (!once))
4233 { 4652 {
… …
4255 4674
4256/*****************************************************************************/ 4675/*****************************************************************************/
4257 4676
4258#if EV_WALK_ENABLE 4677#if EV_WALK_ENABLE
4259void ecb_cold 4678void ecb_cold
4260ev_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
4261{ 4680{
4262 int i, j; 4681 int i, j;
4263 ev_watcher_list *wl, *wn; 4682 ev_watcher_list *wl, *wn;
4264 4683
4265 if (types & (EV_IO | EV_EMBED)) 4684 if (types & (EV_IO | EV_EMBED))
… …
4371 4790
4372#if EV_MULTIPLICITY 4791#if EV_MULTIPLICITY
4373 #include "ev_wrap.h" 4792 #include "ev_wrap.h"
4374#endif 4793#endif
4375 4794
4376EV_CPP(})
4377

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