ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.397 by root, Wed Aug 24 16:13:41 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#endif 596#endif
544 597
545#ifndef ECB_MEMORY_FENCE 598#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 600 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
624 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
563 #endif 631 #endif
564 #endif 632 #endif
565#endif 633#endif
566 634
567#ifndef ECB_MEMORY_FENCE 635#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
639
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model.
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */
648
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 650 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 656 #elif defined _WIN32
578 #include <WinNT.h> 657 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
663 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
664 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync ()
666 #endif
667#endif
668
669#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* we assume that these memory fences work on all variables/all memory accesses, */
672 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 681 #endif
581#endif 682#endif
582 683
583#ifndef ECB_MEMORY_FENCE 684#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 685 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 697 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 699 #endif
599#endif 700#endif
600 701
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 704#endif
604 705
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 708#endif
608 709
609/*****************************************************************************/ 710/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 711
613#if __cplusplus 712#if __cplusplus
614 #define ecb_inline static inline 713 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 714#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 715 #define ecb_inline static __inline__
… …
655#elif ECB_GCC_VERSION(3,0) 754#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 755 #define ecb_decltype(x) __typeof(x)
657#endif 756#endif
658 757
659#define ecb_noinline ecb_attribute ((__noinline__)) 758#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 759#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 760#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 761#define ecb_pure ecb_attribute ((__pure__))
762
763#if ECB_C11
764 #define ecb_noreturn _Noreturn
765#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif
664 768
665#if ECB_GCC_VERSION(4,3) 769#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 770 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 771 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 772 #define ecb_cold ecb_attribute ((__cold__))
… …
759 863
760 return r + ecb_ld32 (x); 864 return r + ecb_ld32 (x);
761 } 865 }
762#endif 866#endif
763 867
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
875{
876 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878}
879
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
882{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8);
887
888 return x;
889}
890
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
893{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
898 x = ( x >> 16 ) | ( x << 16);
899
900 return x;
901}
902
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 903/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 904/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 906ecb_function_ int
768ecb_popcount64 (uint64_t x) 907ecb_popcount64 (uint64_t x)
… …
817 956
818#if ECB_GCC_VERSION(4,5) 957#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 958 #define ecb_unreachable() __builtin_unreachable ()
820#else 959#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 960 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 962 ecb_inline void ecb_unreachable (void) { }
824#endif 963#endif
825 964
826/* try to tell the compiler that some condition is definitely true */ 965/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828 967
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 969ecb_inline unsigned char
831ecb_byteorder_helper (void) 970ecb_byteorder_helper (void)
832{ 971{
833 const uint32_t u = 0x11223344; 972 /* the union code still generates code under pressure in gcc, */
834 return *(unsigned char *)&u; 973 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
981 return 0x44;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
983 return 0x11;
984#else
985 union
986 {
987 uint32_t i;
988 uint8_t c;
989 } u = { 0x11223344 };
990 return u.c;
991#endif
835} 992}
836 993
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 998
842#if ECB_GCC_VERSION(3,0) || ECB_C99 999#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 1001#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif
1004
1005#if __cplusplus
1006 template<typename T>
1007 static inline T ecb_div_rd (T val, T div)
1008 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 }
1011 template<typename T>
1012 static inline T ecb_div_ru (T val, T div)
1013 {
1014 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1015 }
1016#else
1017 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1018 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 1019#endif
847 1020
848#if ecb_cplusplus_does_not_suck 1021#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1022 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N> 1023 template<typename T, int N>
… …
854 } 1027 }
855#else 1028#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif 1030#endif
858 1031
1032/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034
1035/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \
1038 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \
1044 || defined __alpha__ \
1045 || defined __hppa__ \
1046 || defined __ia64__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1048 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */
1050#else
1051 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif
1054
1055#ifndef ECB_NO_LIBM
1056
1057 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1059 ecb_function_ uint32_t
1060 ecb_float_to_binary32 (float x)
1061 {
1062 uint32_t r;
1063
1064 #if ECB_STDFP
1065 memcpy (&r, &x, 4);
1066 #else
1067 /* slow emulation, works for anything but -0 */
1068 uint32_t m;
1069 int e;
1070
1071 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU;
1075
1076 m = frexpf (x, &e) * 0x1000000U;
1077
1078 r = m & 0x80000000U;
1079
1080 if (r)
1081 m = -m;
1082
1083 if (e <= -126)
1084 {
1085 m &= 0xffffffU;
1086 m >>= (-125 - e);
1087 e = -126;
1088 }
1089
1090 r |= (e + 126) << 23;
1091 r |= m & 0x7fffffU;
1092 #endif
1093
1094 return r;
1095 }
1096
1097 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1099 ecb_function_ float
1100 ecb_binary32_to_float (uint32_t x)
1101 {
1102 float r;
1103
1104 #if ECB_STDFP
1105 memcpy (&r, &x, 4);
1106 #else
1107 /* emulation, only works for normals and subnormals and +0 */
1108 int neg = x >> 31;
1109 int e = (x >> 23) & 0xffU;
1110
1111 x &= 0x7fffffU;
1112
1113 if (e)
1114 x |= 0x800000U;
1115 else
1116 e = 1;
1117
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1120
1121 r = neg ? -r : r;
1122 #endif
1123
1124 return r;
1125 }
1126
1127 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1129 ecb_function_ uint64_t
1130 ecb_double_to_binary64 (double x)
1131 {
1132 uint64_t r;
1133
1134 #if ECB_STDFP
1135 memcpy (&r, &x, 8);
1136 #else
1137 /* slow emulation, works for anything but -0 */
1138 uint64_t m;
1139 int e;
1140
1141 if (x == 0e0 ) return 0x0000000000000000U;
1142 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1143 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1144 if (x != x ) return 0X7ff7ffffffffffffU;
1145
1146 m = frexp (x, &e) * 0x20000000000000U;
1147
1148 r = m & 0x8000000000000000;;
1149
1150 if (r)
1151 m = -m;
1152
1153 if (e <= -1022)
1154 {
1155 m &= 0x1fffffffffffffU;
1156 m >>= (-1021 - e);
1157 e = -1022;
1158 }
1159
1160 r |= ((uint64_t)(e + 1022)) << 52;
1161 r |= m & 0xfffffffffffffU;
1162 #endif
1163
1164 return r;
1165 }
1166
1167 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1169 ecb_function_ double
1170 ecb_binary64_to_double (uint64_t x)
1171 {
1172 double r;
1173
1174 #if ECB_STDFP
1175 memcpy (&r, &x, 8);
1176 #else
1177 /* emulation, only works for normals and subnormals and +0 */
1178 int neg = x >> 63;
1179 int e = (x >> 52) & 0x7ffU;
1180
1181 x &= 0xfffffffffffffU;
1182
1183 if (e)
1184 x |= 0x10000000000000U;
1185 else
1186 e = 1;
1187
1188 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1189 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1190
1191 r = neg ? -r : r;
1192 #endif
1193
1194 return r;
1195 }
1196
1197#endif
1198
859#endif 1199#endif
860 1200
861/* ECB.H END */ 1201/* ECB.H END */
862 1202
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864/* if your architecture doesn't need memory fences, e.g. because it is 1204/* if your architecture doesn't need memory fences, e.g. because it is
865 * single-cpu/core, or if you use libev in a project that doesn't use libev 1205 * single-cpu/core, or if you use libev in a project that doesn't use libev
866 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1206 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
867 * libev, in which casess the memory fences become nops. 1207 * libev, in which cases the memory fences become nops.
868 * alternatively, you can remove this #error and link against libpthread, 1208 * alternatively, you can remove this #error and link against libpthread,
869 * which will then provide the memory fences. 1209 * which will then provide the memory fences.
870 */ 1210 */
871# error "memory fences not defined for your architecture, please report" 1211# error "memory fences not defined for your architecture, please report"
872#endif 1212#endif
… …
1029{ 1369{
1030 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
1031} 1371}
1032#endif 1372#endif
1033 1373
1034static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
1035 1375
1036void ecb_cold 1376void ecb_cold
1037ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1038{ 1378{
1039 syserr_cb = cb; 1379 syserr_cb = cb;
1040} 1380}
1041 1381
1042static void noinline ecb_cold 1382static void noinline ecb_cold
… …
1060 abort (); 1400 abort ();
1061 } 1401 }
1062} 1402}
1063 1403
1064static void * 1404static void *
1065ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
1066{ 1406{
1067#if __GLIBC__
1068 return realloc (ptr, size);
1069#else
1070 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
1071 * 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
1072 * 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.
1073 */ 1412 */
1074 1413
1075 if (size) 1414 if (size)
1076 return realloc (ptr, size); 1415 return realloc (ptr, size);
1077 1416
1078 free (ptr); 1417 free (ptr);
1079 return 0; 1418 return 0;
1080#endif
1081} 1419}
1082 1420
1083static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1084 1422
1085void ecb_cold 1423void ecb_cold
1086ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1087{ 1425{
1088 alloc = cb; 1426 alloc = cb;
1089} 1427}
1090 1428
1091inline_speed void * 1429inline_speed void *
… …
1179 #undef VAR 1517 #undef VAR
1180 }; 1518 };
1181 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
1182 1520
1183 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
1184 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 */
1185 1523
1186#else 1524#else
1187 1525
1188 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 */
1189 #define VAR(name,decl) static decl; 1527 #define VAR(name,decl) static decl;
1190 #include "ev_vars.h" 1528 #include "ev_vars.h"
1191 #undef VAR 1529 #undef VAR
1192 1530
1193 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
… …
1208 1546
1209/*****************************************************************************/ 1547/*****************************************************************************/
1210 1548
1211#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
1212ev_tstamp 1550ev_tstamp
1213ev_time (void) 1551ev_time (void) EV_THROW
1214{ 1552{
1215#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
1216 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
1217 { 1555 {
1218 struct timespec ts; 1556 struct timespec ts;
… …
1242 return ev_time (); 1580 return ev_time ();
1243} 1581}
1244 1582
1245#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
1246ev_tstamp 1584ev_tstamp
1247ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
1248{ 1586{
1249 return ev_rt_now; 1587 return ev_rt_now;
1250} 1588}
1251#endif 1589#endif
1252 1590
1253void 1591void
1254ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
1255{ 1593{
1256 if (delay > 0.) 1594 if (delay > 0.)
1257 { 1595 {
1258#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
1259 struct timespec ts; 1597 struct timespec ts;
1260 1598
1261 EV_TS_SET (ts, delay); 1599 EV_TS_SET (ts, delay);
1262 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
1263#elif defined(_WIN32) 1601#elif defined _WIN32
1264 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
1265#else 1603#else
1266 struct timeval tv; 1604 struct timeval tv;
1267 1605
1268 /* 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 */
… …
1287 1625
1288 do 1626 do
1289 ncur <<= 1; 1627 ncur <<= 1;
1290 while (cnt > ncur); 1628 while (cnt > ncur);
1291 1629
1292 /* 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 */
1293 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1294 { 1632 {
1295 ncur *= elem; 1633 ncur *= elem;
1296 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);
1297 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
1340pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
1341{ 1679{
1342} 1680}
1343 1681
1344void noinline 1682void noinline
1345ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1346{ 1684{
1347 W w_ = (W)w; 1685 W w_ = (W)w;
1348 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
1349 1687
1350 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
1354 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
1355 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1356 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
1357 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
1358 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
1359} 1699}
1360 1700
1361inline_speed void 1701inline_speed void
1362feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
1363{ 1703{
… …
1409 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
1410 fd_event_nocheck (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
1411} 1751}
1412 1752
1413void 1753void
1414ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1415{ 1755{
1416 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
1417 fd_event_nocheck (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
1418} 1758}
1419 1759
… …
1738static void noinline ecb_cold 2078static void noinline ecb_cold
1739evpipe_init (EV_P) 2079evpipe_init (EV_P)
1740{ 2080{
1741 if (!ev_is_active (&pipe_w)) 2081 if (!ev_is_active (&pipe_w))
1742 { 2082 {
2083 int fds [2];
2084
1743# if EV_USE_EVENTFD 2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
1744 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1745 if (evfd < 0 && errno == EINVAL) 2088 if (fds [1] < 0 && errno == EINVAL)
1746 evfd = eventfd (0, 0); 2089 fds [1] = eventfd (0, 0);
1747 2090
1748 if (evfd >= 0) 2091 if (fds [1] < 0)
2092# endif
1749 { 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
1750 evpipe [0] = -1; 2102 evpipe [0] = fds [0];
1751 fd_intern (evfd); /* doing it twice doesn't hurt */ 2103
1752 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));
1753 } 2152 }
1754 else 2153 else
1755# endif 2154#endif
1756 { 2155 {
1757 while (pipe (evpipe)) 2156#ifdef _WIN32
1758 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1759 2158 DWORD sent;
1760 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1761 fd_intern (evpipe [1]); 2160 buf.len = 1;
1762 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1763 } 2162#else
1764
1765 ev_io_start (EV_A_ &pipe_w);
1766 ev_unref (EV_A); /* watcher should not keep loop alive */
1767 }
1768}
1769
1770inline_speed void
1771evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1772{
1773 if (expect_true (*flag))
1774 return;
1775
1776 *flag = 1;
1777
1778 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1779
1780 pipe_write_skipped = 1;
1781
1782 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1783
1784 if (pipe_write_wanted)
1785 {
1786 int old_errno;
1787
1788 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1789
1790 old_errno = errno; /* save errno because write will clobber it */
1791
1792#if EV_USE_EVENTFD
1793 if (evfd >= 0)
1794 {
1795 uint64_t counter = 1;
1796 write (evfd, &counter, sizeof (uint64_t));
1797 }
1798 else
1799#endif
1800 {
1801 /* win32 people keep sending patches that change this write() to send() */
1802 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1803 /* so when you think this write should be a send instead, please find out */
1804 /* where your send() is from - it's definitely not the microsoft send, and */
1805 /* tell me. thank you. */
1806 write (evpipe [1], &(evpipe [1]), 1); 2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1807 } 2165 }
1808 2166
1809 errno = old_errno; 2167 errno = old_errno;
1810 } 2168 }
1811} 2169}
… …
1818 int i; 2176 int i;
1819 2177
1820 if (revents & EV_READ) 2178 if (revents & EV_READ)
1821 { 2179 {
1822#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1823 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1824 { 2182 {
1825 uint64_t counter; 2183 uint64_t counter;
1826 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2185 }
1828 else 2186 else
1829#endif 2187#endif
1830 { 2188 {
1831 char dummy; 2189 char dummy[4];
1832 /* 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
1833 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
1834 } 2200 }
1835 } 2201 }
1836 2202
1837 pipe_write_skipped = 0; 2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1838 2206
1839#if EV_SIGNAL_ENABLE 2207#if EV_SIGNAL_ENABLE
1840 if (sig_pending) 2208 if (sig_pending)
1841 { 2209 {
1842 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1843 2213
1844 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1845 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1846 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1847 } 2217 }
… …
1849 2219
1850#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1851 if (async_pending) 2221 if (async_pending)
1852 { 2222 {
1853 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1854 2226
1855 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1856 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1857 { 2229 {
1858 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1859 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1860 } 2233 }
1861 } 2234 }
1862#endif 2235#endif
1863} 2236}
1864 2237
1865/*****************************************************************************/ 2238/*****************************************************************************/
1866 2239
1867void 2240void
1868ev_feed_signal (int signum) 2241ev_feed_signal (int signum) EV_THROW
1869{ 2242{
1870#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
2244 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE;
1871 EV_P = signals [signum - 1].loop; 2246 EV_A = signals [signum - 1].loop;
1872 2247
1873 if (!EV_A) 2248 if (!EV_A)
1874 return; 2249 return;
1875#endif 2250#endif
1876 2251
1877 if (!ev_active (&pipe_w))
1878 return;
1879
1880 signals [signum - 1].pending = 1; 2252 signals [signum - 1].pending = 1;
1881 evpipe_write (EV_A_ &sig_pending); 2253 evpipe_write (EV_A_ &sig_pending);
1882} 2254}
1883 2255
1884static void 2256static void
… …
1890 2262
1891 ev_feed_signal (signum); 2263 ev_feed_signal (signum);
1892} 2264}
1893 2265
1894void noinline 2266void noinline
1895ev_feed_signal_event (EV_P_ int signum) 2267ev_feed_signal_event (EV_P_ int signum) EV_THROW
1896{ 2268{
1897 WL w; 2269 WL w;
1898 2270
1899 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2271 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1900 return; 2272 return;
1901 2273
1902 --signum; 2274 --signum;
1903 2275
1904#if EV_MULTIPLICITY 2276#if EV_MULTIPLICITY
… …
1908 if (expect_false (signals [signum].loop != EV_A)) 2280 if (expect_false (signals [signum].loop != EV_A))
1909 return; 2281 return;
1910#endif 2282#endif
1911 2283
1912 signals [signum].pending = 0; 2284 signals [signum].pending = 0;
2285 ECB_MEMORY_FENCE_RELEASE;
1913 2286
1914 for (w = signals [signum].head; w; w = w->next) 2287 for (w = signals [signum].head; w; w = w->next)
1915 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2288 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1916} 2289}
1917 2290
… …
2016#if EV_USE_SELECT 2389#if EV_USE_SELECT
2017# include "ev_select.c" 2390# include "ev_select.c"
2018#endif 2391#endif
2019 2392
2020int ecb_cold 2393int ecb_cold
2021ev_version_major (void) 2394ev_version_major (void) EV_THROW
2022{ 2395{
2023 return EV_VERSION_MAJOR; 2396 return EV_VERSION_MAJOR;
2024} 2397}
2025 2398
2026int ecb_cold 2399int ecb_cold
2027ev_version_minor (void) 2400ev_version_minor (void) EV_THROW
2028{ 2401{
2029 return EV_VERSION_MINOR; 2402 return EV_VERSION_MINOR;
2030} 2403}
2031 2404
2032/* 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 */
… …
2040 || getgid () != getegid (); 2413 || getgid () != getegid ();
2041#endif 2414#endif
2042} 2415}
2043 2416
2044unsigned int ecb_cold 2417unsigned int ecb_cold
2045ev_supported_backends (void) 2418ev_supported_backends (void) EV_THROW
2046{ 2419{
2047 unsigned int flags = 0; 2420 unsigned int flags = 0;
2048 2421
2049 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2050 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2054 2427
2055 return flags; 2428 return flags;
2056} 2429}
2057 2430
2058unsigned int ecb_cold 2431unsigned int ecb_cold
2059ev_recommended_backends (void) 2432ev_recommended_backends (void) EV_THROW
2060{ 2433{
2061 unsigned int flags = ev_supported_backends (); 2434 unsigned int flags = ev_supported_backends ();
2062 2435
2063#ifndef __NetBSD__ 2436#ifndef __NetBSD__
2064 /* kqueue is borked on everything but netbsd apparently */ 2437 /* kqueue is borked on everything but netbsd apparently */
… …
2076 2449
2077 return flags; 2450 return flags;
2078} 2451}
2079 2452
2080unsigned int ecb_cold 2453unsigned int ecb_cold
2081ev_embeddable_backends (void) 2454ev_embeddable_backends (void) EV_THROW
2082{ 2455{
2083 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2084 2457
2085 /* 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 */
2086 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 */
… …
2088 2461
2089 return flags; 2462 return flags;
2090} 2463}
2091 2464
2092unsigned int 2465unsigned int
2093ev_backend (EV_P) 2466ev_backend (EV_P) EV_THROW
2094{ 2467{
2095 return backend; 2468 return backend;
2096} 2469}
2097 2470
2098#if EV_FEATURE_API 2471#if EV_FEATURE_API
2099unsigned int 2472unsigned int
2100ev_iteration (EV_P) 2473ev_iteration (EV_P) EV_THROW
2101{ 2474{
2102 return loop_count; 2475 return loop_count;
2103} 2476}
2104 2477
2105unsigned int 2478unsigned int
2106ev_depth (EV_P) 2479ev_depth (EV_P) EV_THROW
2107{ 2480{
2108 return loop_depth; 2481 return loop_depth;
2109} 2482}
2110 2483
2111void 2484void
2112ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2113{ 2486{
2114 io_blocktime = interval; 2487 io_blocktime = interval;
2115} 2488}
2116 2489
2117void 2490void
2118ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2119{ 2492{
2120 timeout_blocktime = interval; 2493 timeout_blocktime = interval;
2121} 2494}
2122 2495
2123void 2496void
2124ev_set_userdata (EV_P_ void *data) 2497ev_set_userdata (EV_P_ void *data) EV_THROW
2125{ 2498{
2126 userdata = data; 2499 userdata = data;
2127} 2500}
2128 2501
2129void * 2502void *
2130ev_userdata (EV_P) 2503ev_userdata (EV_P) EV_THROW
2131{ 2504{
2132 return userdata; 2505 return userdata;
2133} 2506}
2134 2507
2135void 2508void
2136ev_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
2137{ 2510{
2138 invoke_cb = invoke_pending_cb; 2511 invoke_cb = invoke_pending_cb;
2139} 2512}
2140 2513
2141void 2514void
2142ev_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
2143{ 2516{
2144 release_cb = release; 2517 release_cb = release;
2145 acquire_cb = acquire; 2518 acquire_cb = acquire;
2146} 2519}
2147#endif 2520#endif
2148 2521
2149/* initialise a loop structure, must be zero-initialised */ 2522/* initialise a loop structure, must be zero-initialised */
2150static void noinline ecb_cold 2523static void noinline ecb_cold
2151loop_init (EV_P_ unsigned int flags) 2524loop_init (EV_P_ unsigned int flags) EV_THROW
2152{ 2525{
2153 if (!backend) 2526 if (!backend)
2154 { 2527 {
2155 origflags = flags; 2528 origflags = flags;
2156 2529
… …
2201#if EV_ASYNC_ENABLE 2574#if EV_ASYNC_ENABLE
2202 async_pending = 0; 2575 async_pending = 0;
2203#endif 2576#endif
2204 pipe_write_skipped = 0; 2577 pipe_write_skipped = 0;
2205 pipe_write_wanted = 0; 2578 pipe_write_wanted = 0;
2579 evpipe [0] = -1;
2580 evpipe [1] = -1;
2206#if EV_USE_INOTIFY 2581#if EV_USE_INOTIFY
2207 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2208#endif 2583#endif
2209#if EV_USE_SIGNALFD 2584#if EV_USE_SIGNALFD
2210 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2585 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2261 EV_INVOKE_PENDING; 2636 EV_INVOKE_PENDING;
2262 } 2637 }
2263#endif 2638#endif
2264 2639
2265#if EV_CHILD_ENABLE 2640#if EV_CHILD_ENABLE
2266 if (ev_is_active (&childev)) 2641 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2267 { 2642 {
2268 ev_ref (EV_A); /* child watcher */ 2643 ev_ref (EV_A); /* child watcher */
2269 ev_signal_stop (EV_A_ &childev); 2644 ev_signal_stop (EV_A_ &childev);
2270 } 2645 }
2271#endif 2646#endif
… …
2273 if (ev_is_active (&pipe_w)) 2648 if (ev_is_active (&pipe_w))
2274 { 2649 {
2275 /*ev_ref (EV_A);*/ 2650 /*ev_ref (EV_A);*/
2276 /*ev_io_stop (EV_A_ &pipe_w);*/ 2651 /*ev_io_stop (EV_A_ &pipe_w);*/
2277 2652
2278#if EV_USE_EVENTFD
2279 if (evfd >= 0)
2280 close (evfd);
2281#endif
2282
2283 if (evpipe [0] >= 0)
2284 {
2285 EV_WIN32_CLOSE_FD (evpipe [0]); 2653 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2286 EV_WIN32_CLOSE_FD (evpipe [1]); 2654 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2287 }
2288 } 2655 }
2289 2656
2290#if EV_USE_SIGNALFD 2657#if EV_USE_SIGNALFD
2291 if (ev_is_active (&sigfd_w)) 2658 if (ev_is_active (&sigfd_w))
2292 close (sigfd); 2659 close (sigfd);
… …
2378#endif 2745#endif
2379#if EV_USE_INOTIFY 2746#if EV_USE_INOTIFY
2380 infy_fork (EV_A); 2747 infy_fork (EV_A);
2381#endif 2748#endif
2382 2749
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2383 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
2384 { 2752 {
2385 /* 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 */
2386 2754
2387 ev_ref (EV_A); 2755 ev_ref (EV_A);
2388 ev_io_stop (EV_A_ &pipe_w); 2756 ev_io_stop (EV_A_ &pipe_w);
2389 2757
2390#if EV_USE_EVENTFD
2391 if (evfd >= 0)
2392 close (evfd);
2393#endif
2394
2395 if (evpipe [0] >= 0) 2758 if (evpipe [0] >= 0)
2396 {
2397 EV_WIN32_CLOSE_FD (evpipe [0]); 2759 EV_WIN32_CLOSE_FD (evpipe [0]);
2398 EV_WIN32_CLOSE_FD (evpipe [1]);
2399 }
2400 2760
2401#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2402 evpipe_init (EV_A); 2761 evpipe_init (EV_A);
2403 /* now iterate over everything, in case we missed something */ 2762 /* iterate over everything, in case we missed something before */
2404 pipecb (EV_A_ &pipe_w, EV_READ); 2763 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2405#endif
2406 } 2764 }
2765#endif
2407 2766
2408 postfork = 0; 2767 postfork = 0;
2409} 2768}
2410 2769
2411#if EV_MULTIPLICITY 2770#if EV_MULTIPLICITY
2412 2771
2413struct ev_loop * ecb_cold 2772struct ev_loop * ecb_cold
2414ev_loop_new (unsigned int flags) 2773ev_loop_new (unsigned int flags) EV_THROW
2415{ 2774{
2416 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2417 2776
2418 memset (EV_A, 0, sizeof (struct ev_loop)); 2777 memset (EV_A, 0, sizeof (struct ev_loop));
2419 loop_init (EV_A_ flags); 2778 loop_init (EV_A_ flags);
… …
2463} 2822}
2464#endif 2823#endif
2465 2824
2466#if EV_FEATURE_API 2825#if EV_FEATURE_API
2467void ecb_cold 2826void ecb_cold
2468ev_verify (EV_P) 2827ev_verify (EV_P) EV_THROW
2469{ 2828{
2470#if EV_VERIFY 2829#if EV_VERIFY
2471 int i; 2830 int i;
2472 WL w; 2831 WL w, w2;
2473 2832
2474 assert (activecnt >= -1); 2833 assert (activecnt >= -1);
2475 2834
2476 assert (fdchangemax >= fdchangecnt); 2835 assert (fdchangemax >= fdchangecnt);
2477 for (i = 0; i < fdchangecnt; ++i) 2836 for (i = 0; i < fdchangecnt; ++i)
2478 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2837 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2479 2838
2480 assert (anfdmax >= 0); 2839 assert (anfdmax >= 0);
2481 for (i = 0; i < anfdmax; ++i) 2840 for (i = 0; i < anfdmax; ++i)
2841 {
2842 int j = 0;
2843
2482 for (w = anfds [i].head; w; w = w->next) 2844 for (w = w2 = anfds [i].head; w; w = w->next)
2483 { 2845 {
2484 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
2485 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));
2486 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));
2487 } 2856 }
2857 }
2488 2858
2489 assert (timermax >= timercnt); 2859 assert (timermax >= timercnt);
2490 verify_heap (EV_A_ timers, timercnt); 2860 verify_heap (EV_A_ timers, timercnt);
2491 2861
2492#if EV_PERIODIC_ENABLE 2862#if EV_PERIODIC_ENABLE
… …
2542#if EV_MULTIPLICITY 2912#if EV_MULTIPLICITY
2543struct ev_loop * ecb_cold 2913struct ev_loop * ecb_cold
2544#else 2914#else
2545int 2915int
2546#endif 2916#endif
2547ev_default_loop (unsigned int flags) 2917ev_default_loop (unsigned int flags) EV_THROW
2548{ 2918{
2549 if (!ev_default_loop_ptr) 2919 if (!ev_default_loop_ptr)
2550 { 2920 {
2551#if EV_MULTIPLICITY 2921#if EV_MULTIPLICITY
2552 EV_P = ev_default_loop_ptr = &default_loop_struct; 2922 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2571 2941
2572 return ev_default_loop_ptr; 2942 return ev_default_loop_ptr;
2573} 2943}
2574 2944
2575void 2945void
2576ev_loop_fork (EV_P) 2946ev_loop_fork (EV_P) EV_THROW
2577{ 2947{
2578 postfork = 1; /* must be in line with ev_default_fork */ 2948 postfork = 1;
2579} 2949}
2580 2950
2581/*****************************************************************************/ 2951/*****************************************************************************/
2582 2952
2583void 2953void
… …
2585{ 2955{
2586 EV_CB_INVOKE ((W)w, revents); 2956 EV_CB_INVOKE ((W)w, revents);
2587} 2957}
2588 2958
2589unsigned int 2959unsigned int
2590ev_pending_count (EV_P) 2960ev_pending_count (EV_P) EV_THROW
2591{ 2961{
2592 int pri; 2962 int pri;
2593 unsigned int count = 0; 2963 unsigned int count = 0;
2594 2964
2595 for (pri = NUMPRI; pri--; ) 2965 for (pri = NUMPRI; pri--; )
… …
2599} 2969}
2600 2970
2601void noinline 2971void noinline
2602ev_invoke_pending (EV_P) 2972ev_invoke_pending (EV_P)
2603{ 2973{
2604 int pri; 2974 pendingpri = NUMPRI;
2605 2975
2606 for (pri = NUMPRI; pri--; ) 2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2977 {
2978 --pendingpri;
2979
2607 while (pendingcnt [pri]) 2980 while (pendingcnt [pendingpri])
2608 { 2981 {
2609 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2610 2983
2611 p->w->pending = 0; 2984 p->w->pending = 0;
2612 EV_CB_INVOKE (p->w, p->events); 2985 EV_CB_INVOKE (p->w, p->events);
2613 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
2614 } 2987 }
2988 }
2615} 2989}
2616 2990
2617#if EV_IDLE_ENABLE 2991#if EV_IDLE_ENABLE
2618/* make idle watchers pending. this handles the "call-idle */ 2992/* make idle watchers pending. this handles the "call-idle */
2619/* only when higher priorities are idle" logic */ 2993/* only when higher priorities are idle" logic */
… …
2709{ 3083{
2710 EV_FREQUENT_CHECK; 3084 EV_FREQUENT_CHECK;
2711 3085
2712 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3086 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2713 { 3087 {
2714 int feed_count = 0;
2715
2716 do 3088 do
2717 { 3089 {
2718 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3090 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2719 3091
2720 /*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)));*/
… …
2854 3226
2855 mn_now = ev_rt_now; 3227 mn_now = ev_rt_now;
2856 } 3228 }
2857} 3229}
2858 3230
2859void 3231int
2860ev_run (EV_P_ int flags) 3232ev_run (EV_P_ int flags)
2861{ 3233{
2862#if EV_FEATURE_API 3234#if EV_FEATURE_API
2863 ++loop_depth; 3235 ++loop_depth;
2864#endif 3236#endif
… …
2977#endif 3349#endif
2978 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3350 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2979 backend_poll (EV_A_ waittime); 3351 backend_poll (EV_A_ waittime);
2980 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3352 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2981 3353
2982 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3354 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2983 3355
3356 ECB_MEMORY_FENCE_ACQUIRE;
2984 if (pipe_write_skipped) 3357 if (pipe_write_skipped)
2985 { 3358 {
2986 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)));
2987 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3360 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2988 } 3361 }
… …
3021 loop_done = EVBREAK_CANCEL; 3394 loop_done = EVBREAK_CANCEL;
3022 3395
3023#if EV_FEATURE_API 3396#if EV_FEATURE_API
3024 --loop_depth; 3397 --loop_depth;
3025#endif 3398#endif
3399
3400 return activecnt;
3026} 3401}
3027 3402
3028void 3403void
3029ev_break (EV_P_ int how) 3404ev_break (EV_P_ int how) EV_THROW
3030{ 3405{
3031 loop_done = how; 3406 loop_done = how;
3032} 3407}
3033 3408
3034void 3409void
3035ev_ref (EV_P) 3410ev_ref (EV_P) EV_THROW
3036{ 3411{
3037 ++activecnt; 3412 ++activecnt;
3038} 3413}
3039 3414
3040void 3415void
3041ev_unref (EV_P) 3416ev_unref (EV_P) EV_THROW
3042{ 3417{
3043 --activecnt; 3418 --activecnt;
3044} 3419}
3045 3420
3046void 3421void
3047ev_now_update (EV_P) 3422ev_now_update (EV_P) EV_THROW
3048{ 3423{
3049 time_update (EV_A_ 1e100); 3424 time_update (EV_A_ 1e100);
3050} 3425}
3051 3426
3052void 3427void
3053ev_suspend (EV_P) 3428ev_suspend (EV_P) EV_THROW
3054{ 3429{
3055 ev_now_update (EV_A); 3430 ev_now_update (EV_A);
3056} 3431}
3057 3432
3058void 3433void
3059ev_resume (EV_P) 3434ev_resume (EV_P) EV_THROW
3060{ 3435{
3061 ev_tstamp mn_prev = mn_now; 3436 ev_tstamp mn_prev = mn_now;
3062 3437
3063 ev_now_update (EV_A); 3438 ev_now_update (EV_A);
3064 timers_reschedule (EV_A_ mn_now - mn_prev); 3439 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3103 w->pending = 0; 3478 w->pending = 0;
3104 } 3479 }
3105} 3480}
3106 3481
3107int 3482int
3108ev_clear_pending (EV_P_ void *w) 3483ev_clear_pending (EV_P_ void *w) EV_THROW
3109{ 3484{
3110 W w_ = (W)w; 3485 W w_ = (W)w;
3111 int pending = w_->pending; 3486 int pending = w_->pending;
3112 3487
3113 if (expect_true (pending)) 3488 if (expect_true (pending))
… …
3146} 3521}
3147 3522
3148/*****************************************************************************/ 3523/*****************************************************************************/
3149 3524
3150void noinline 3525void noinline
3151ev_io_start (EV_P_ ev_io *w) 3526ev_io_start (EV_P_ ev_io *w) EV_THROW
3152{ 3527{
3153 int fd = w->fd; 3528 int fd = w->fd;
3154 3529
3155 if (expect_false (ev_is_active (w))) 3530 if (expect_false (ev_is_active (w)))
3156 return; 3531 return;
… …
3162 3537
3163 ev_start (EV_A_ (W)w, 1); 3538 ev_start (EV_A_ (W)w, 1);
3164 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3165 wlist_add (&anfds[fd].head, (WL)w); 3540 wlist_add (&anfds[fd].head, (WL)w);
3166 3541
3542 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544
3167 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);
3168 w->events &= ~EV__IOFDSET; 3546 w->events &= ~EV__IOFDSET;
3169 3547
3170 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
3171} 3549}
3172 3550
3173void noinline 3551void noinline
3174ev_io_stop (EV_P_ ev_io *w) 3552ev_io_stop (EV_P_ ev_io *w) EV_THROW
3175{ 3553{
3176 clear_pending (EV_A_ (W)w); 3554 clear_pending (EV_A_ (W)w);
3177 if (expect_false (!ev_is_active (w))) 3555 if (expect_false (!ev_is_active (w)))
3178 return; 3556 return;
3179 3557
… …
3188 3566
3189 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
3190} 3568}
3191 3569
3192void noinline 3570void noinline
3193ev_timer_start (EV_P_ ev_timer *w) 3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3194{ 3572{
3195 if (expect_false (ev_is_active (w))) 3573 if (expect_false (ev_is_active (w)))
3196 return; 3574 return;
3197 3575
3198 ev_at (w) += mn_now; 3576 ev_at (w) += mn_now;
… …
3212 3590
3213 /*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));*/
3214} 3592}
3215 3593
3216void noinline 3594void noinline
3217ev_timer_stop (EV_P_ ev_timer *w) 3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3218{ 3596{
3219 clear_pending (EV_A_ (W)w); 3597 clear_pending (EV_A_ (W)w);
3220 if (expect_false (!ev_is_active (w))) 3598 if (expect_false (!ev_is_active (w)))
3221 return; 3599 return;
3222 3600
… …
3242 3620
3243 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
3244} 3622}
3245 3623
3246void noinline 3624void noinline
3247ev_timer_again (EV_P_ ev_timer *w) 3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3248{ 3626{
3249 EV_FREQUENT_CHECK; 3627 EV_FREQUENT_CHECK;
3628
3629 clear_pending (EV_A_ (W)w);
3250 3630
3251 if (ev_is_active (w)) 3631 if (ev_is_active (w))
3252 { 3632 {
3253 if (w->repeat) 3633 if (w->repeat)
3254 { 3634 {
… …
3267 3647
3268 EV_FREQUENT_CHECK; 3648 EV_FREQUENT_CHECK;
3269} 3649}
3270 3650
3271ev_tstamp 3651ev_tstamp
3272ev_timer_remaining (EV_P_ ev_timer *w) 3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3273{ 3653{
3274 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3275} 3655}
3276 3656
3277#if EV_PERIODIC_ENABLE 3657#if EV_PERIODIC_ENABLE
3278void noinline 3658void noinline
3279ev_periodic_start (EV_P_ ev_periodic *w) 3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3280{ 3660{
3281 if (expect_false (ev_is_active (w))) 3661 if (expect_false (ev_is_active (w)))
3282 return; 3662 return;
3283 3663
3284 if (w->reschedule_cb) 3664 if (w->reschedule_cb)
… …
3304 3684
3305 /*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));*/
3306} 3686}
3307 3687
3308void noinline 3688void noinline
3309ev_periodic_stop (EV_P_ ev_periodic *w) 3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3310{ 3690{
3311 clear_pending (EV_A_ (W)w); 3691 clear_pending (EV_A_ (W)w);
3312 if (expect_false (!ev_is_active (w))) 3692 if (expect_false (!ev_is_active (w)))
3313 return; 3693 return;
3314 3694
… …
3332 3712
3333 EV_FREQUENT_CHECK; 3713 EV_FREQUENT_CHECK;
3334} 3714}
3335 3715
3336void noinline 3716void noinline
3337ev_periodic_again (EV_P_ ev_periodic *w) 3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3338{ 3718{
3339 /* TODO: use adjustheap and recalculation */ 3719 /* TODO: use adjustheap and recalculation */
3340 ev_periodic_stop (EV_A_ w); 3720 ev_periodic_stop (EV_A_ w);
3341 ev_periodic_start (EV_A_ w); 3721 ev_periodic_start (EV_A_ w);
3342} 3722}
… …
3347#endif 3727#endif
3348 3728
3349#if EV_SIGNAL_ENABLE 3729#if EV_SIGNAL_ENABLE
3350 3730
3351void noinline 3731void noinline
3352ev_signal_start (EV_P_ ev_signal *w) 3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3353{ 3733{
3354 if (expect_false (ev_is_active (w))) 3734 if (expect_false (ev_is_active (w)))
3355 return; 3735 return;
3356 3736
3357 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));
… …
3359#if EV_MULTIPLICITY 3739#if EV_MULTIPLICITY
3360 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",
3361 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3741 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3362 3742
3363 signals [w->signum - 1].loop = EV_A; 3743 signals [w->signum - 1].loop = EV_A;
3744 ECB_MEMORY_FENCE_RELEASE;
3364#endif 3745#endif
3365 3746
3366 EV_FREQUENT_CHECK; 3747 EV_FREQUENT_CHECK;
3367 3748
3368#if EV_USE_SIGNALFD 3749#if EV_USE_SIGNALFD
… …
3428 3809
3429 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
3430} 3811}
3431 3812
3432void noinline 3813void noinline
3433ev_signal_stop (EV_P_ ev_signal *w) 3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3434{ 3815{
3435 clear_pending (EV_A_ (W)w); 3816 clear_pending (EV_A_ (W)w);
3436 if (expect_false (!ev_is_active (w))) 3817 if (expect_false (!ev_is_active (w)))
3437 return; 3818 return;
3438 3819
… …
3469#endif 3850#endif
3470 3851
3471#if EV_CHILD_ENABLE 3852#if EV_CHILD_ENABLE
3472 3853
3473void 3854void
3474ev_child_start (EV_P_ ev_child *w) 3855ev_child_start (EV_P_ ev_child *w) EV_THROW
3475{ 3856{
3476#if EV_MULTIPLICITY 3857#if EV_MULTIPLICITY
3477 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));
3478#endif 3859#endif
3479 if (expect_false (ev_is_active (w))) 3860 if (expect_false (ev_is_active (w)))
… …
3486 3867
3487 EV_FREQUENT_CHECK; 3868 EV_FREQUENT_CHECK;
3488} 3869}
3489 3870
3490void 3871void
3491ev_child_stop (EV_P_ ev_child *w) 3872ev_child_stop (EV_P_ ev_child *w) EV_THROW
3492{ 3873{
3493 clear_pending (EV_A_ (W)w); 3874 clear_pending (EV_A_ (W)w);
3494 if (expect_false (!ev_is_active (w))) 3875 if (expect_false (!ev_is_active (w)))
3495 return; 3876 return;
3496 3877
… …
3523# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3524 3905
3525static void noinline 3906static void noinline
3526infy_add (EV_P_ ev_stat *w) 3907infy_add (EV_P_ ev_stat *w)
3527{ 3908{
3528 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);
3529 3913
3530 if (w->wd >= 0) 3914 if (w->wd >= 0)
3531 { 3915 {
3532 struct statfs sfs; 3916 struct statfs sfs;
3533 3917
… …
3537 3921
3538 if (!fs_2625) 3922 if (!fs_2625)
3539 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3923 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3540 else if (!statfs (w->path, &sfs) 3924 else if (!statfs (w->path, &sfs)
3541 && (sfs.f_type == 0x1373 /* devfs */ 3925 && (sfs.f_type == 0x1373 /* devfs */
3926 || sfs.f_type == 0x4006 /* fat */
3927 || sfs.f_type == 0x4d44 /* msdos */
3542 || 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 */
3543 || sfs.f_type == 0x3153464a /* jfs */ 3932 || sfs.f_type == 0x3153464a /* jfs */
3933 || sfs.f_type == 0x9123683e /* btrfs */
3544 || sfs.f_type == 0x52654973 /* reiser3 */ 3934 || sfs.f_type == 0x52654973 /* reiser3 */
3545 || sfs.f_type == 0x01021994 /* tempfs */ 3935 || sfs.f_type == 0x01021994 /* tmpfs */
3546 || sfs.f_type == 0x58465342 /* xfs */)) 3936 || sfs.f_type == 0x58465342 /* xfs */))
3547 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3937 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3548 else 3938 else
3549 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 */
3550 } 3940 }
… …
3663} 4053}
3664 4054
3665inline_size int 4055inline_size int
3666infy_newfd (void) 4056infy_newfd (void)
3667{ 4057{
3668#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4058#if defined IN_CLOEXEC && defined IN_NONBLOCK
3669 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4059 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3670 if (fd >= 0) 4060 if (fd >= 0)
3671 return fd; 4061 return fd;
3672#endif 4062#endif
3673 return inotify_init (); 4063 return inotify_init ();
… …
3748#else 4138#else
3749# define EV_LSTAT(p,b) lstat (p, b) 4139# define EV_LSTAT(p,b) lstat (p, b)
3750#endif 4140#endif
3751 4141
3752void 4142void
3753ev_stat_stat (EV_P_ ev_stat *w) 4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3754{ 4144{
3755 if (lstat (w->path, &w->attr) < 0) 4145 if (lstat (w->path, &w->attr) < 0)
3756 w->attr.st_nlink = 0; 4146 w->attr.st_nlink = 0;
3757 else if (!w->attr.st_nlink) 4147 else if (!w->attr.st_nlink)
3758 w->attr.st_nlink = 1; 4148 w->attr.st_nlink = 1;
… …
3797 ev_feed_event (EV_A_ w, EV_STAT); 4187 ev_feed_event (EV_A_ w, EV_STAT);
3798 } 4188 }
3799} 4189}
3800 4190
3801void 4191void
3802ev_stat_start (EV_P_ ev_stat *w) 4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3803{ 4193{
3804 if (expect_false (ev_is_active (w))) 4194 if (expect_false (ev_is_active (w)))
3805 return; 4195 return;
3806 4196
3807 ev_stat_stat (EV_A_ w); 4197 ev_stat_stat (EV_A_ w);
… …
3828 4218
3829 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3830} 4220}
3831 4221
3832void 4222void
3833ev_stat_stop (EV_P_ ev_stat *w) 4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3834{ 4224{
3835 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3837 return; 4227 return;
3838 4228
… …
3854} 4244}
3855#endif 4245#endif
3856 4246
3857#if EV_IDLE_ENABLE 4247#if EV_IDLE_ENABLE
3858void 4248void
3859ev_idle_start (EV_P_ ev_idle *w) 4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3860{ 4250{
3861 if (expect_false (ev_is_active (w))) 4251 if (expect_false (ev_is_active (w)))
3862 return; 4252 return;
3863 4253
3864 pri_adjust (EV_A_ (W)w); 4254 pri_adjust (EV_A_ (W)w);
… …
3877 4267
3878 EV_FREQUENT_CHECK; 4268 EV_FREQUENT_CHECK;
3879} 4269}
3880 4270
3881void 4271void
3882ev_idle_stop (EV_P_ ev_idle *w) 4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3883{ 4273{
3884 clear_pending (EV_A_ (W)w); 4274 clear_pending (EV_A_ (W)w);
3885 if (expect_false (!ev_is_active (w))) 4275 if (expect_false (!ev_is_active (w)))
3886 return; 4276 return;
3887 4277
… …
3901} 4291}
3902#endif 4292#endif
3903 4293
3904#if EV_PREPARE_ENABLE 4294#if EV_PREPARE_ENABLE
3905void 4295void
3906ev_prepare_start (EV_P_ ev_prepare *w) 4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3907{ 4297{
3908 if (expect_false (ev_is_active (w))) 4298 if (expect_false (ev_is_active (w)))
3909 return; 4299 return;
3910 4300
3911 EV_FREQUENT_CHECK; 4301 EV_FREQUENT_CHECK;
… …
3916 4306
3917 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
3918} 4308}
3919 4309
3920void 4310void
3921ev_prepare_stop (EV_P_ ev_prepare *w) 4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3922{ 4312{
3923 clear_pending (EV_A_ (W)w); 4313 clear_pending (EV_A_ (W)w);
3924 if (expect_false (!ev_is_active (w))) 4314 if (expect_false (!ev_is_active (w)))
3925 return; 4315 return;
3926 4316
… …
3939} 4329}
3940#endif 4330#endif
3941 4331
3942#if EV_CHECK_ENABLE 4332#if EV_CHECK_ENABLE
3943void 4333void
3944ev_check_start (EV_P_ ev_check *w) 4334ev_check_start (EV_P_ ev_check *w) EV_THROW
3945{ 4335{
3946 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3947 return; 4337 return;
3948 4338
3949 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
… …
3954 4344
3955 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3956} 4346}
3957 4347
3958void 4348void
3959ev_check_stop (EV_P_ ev_check *w) 4349ev_check_stop (EV_P_ ev_check *w) EV_THROW
3960{ 4350{
3961 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3962 if (expect_false (!ev_is_active (w))) 4352 if (expect_false (!ev_is_active (w)))
3963 return; 4353 return;
3964 4354
… …
3977} 4367}
3978#endif 4368#endif
3979 4369
3980#if EV_EMBED_ENABLE 4370#if EV_EMBED_ENABLE
3981void noinline 4371void noinline
3982ev_embed_sweep (EV_P_ ev_embed *w) 4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3983{ 4373{
3984 ev_run (w->other, EVRUN_NOWAIT); 4374 ev_run (w->other, EVRUN_NOWAIT);
3985} 4375}
3986 4376
3987static void 4377static void
… …
4035 ev_idle_stop (EV_A_ idle); 4425 ev_idle_stop (EV_A_ idle);
4036} 4426}
4037#endif 4427#endif
4038 4428
4039void 4429void
4040ev_embed_start (EV_P_ ev_embed *w) 4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4041{ 4431{
4042 if (expect_false (ev_is_active (w))) 4432 if (expect_false (ev_is_active (w)))
4043 return; 4433 return;
4044 4434
4045 { 4435 {
… …
4066 4456
4067 EV_FREQUENT_CHECK; 4457 EV_FREQUENT_CHECK;
4068} 4458}
4069 4459
4070void 4460void
4071ev_embed_stop (EV_P_ ev_embed *w) 4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4072{ 4462{
4073 clear_pending (EV_A_ (W)w); 4463 clear_pending (EV_A_ (W)w);
4074 if (expect_false (!ev_is_active (w))) 4464 if (expect_false (!ev_is_active (w)))
4075 return; 4465 return;
4076 4466
… …
4086} 4476}
4087#endif 4477#endif
4088 4478
4089#if EV_FORK_ENABLE 4479#if EV_FORK_ENABLE
4090void 4480void
4091ev_fork_start (EV_P_ ev_fork *w) 4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4092{ 4482{
4093 if (expect_false (ev_is_active (w))) 4483 if (expect_false (ev_is_active (w)))
4094 return; 4484 return;
4095 4485
4096 EV_FREQUENT_CHECK; 4486 EV_FREQUENT_CHECK;
… …
4101 4491
4102 EV_FREQUENT_CHECK; 4492 EV_FREQUENT_CHECK;
4103} 4493}
4104 4494
4105void 4495void
4106ev_fork_stop (EV_P_ ev_fork *w) 4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4107{ 4497{
4108 clear_pending (EV_A_ (W)w); 4498 clear_pending (EV_A_ (W)w);
4109 if (expect_false (!ev_is_active (w))) 4499 if (expect_false (!ev_is_active (w)))
4110 return; 4500 return;
4111 4501
… …
4124} 4514}
4125#endif 4515#endif
4126 4516
4127#if EV_CLEANUP_ENABLE 4517#if EV_CLEANUP_ENABLE
4128void 4518void
4129ev_cleanup_start (EV_P_ ev_cleanup *w) 4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4130{ 4520{
4131 if (expect_false (ev_is_active (w))) 4521 if (expect_false (ev_is_active (w)))
4132 return; 4522 return;
4133 4523
4134 EV_FREQUENT_CHECK; 4524 EV_FREQUENT_CHECK;
… …
4141 ev_unref (EV_A); 4531 ev_unref (EV_A);
4142 EV_FREQUENT_CHECK; 4532 EV_FREQUENT_CHECK;
4143} 4533}
4144 4534
4145void 4535void
4146ev_cleanup_stop (EV_P_ ev_cleanup *w) 4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4147{ 4537{
4148 clear_pending (EV_A_ (W)w); 4538 clear_pending (EV_A_ (W)w);
4149 if (expect_false (!ev_is_active (w))) 4539 if (expect_false (!ev_is_active (w)))
4150 return; 4540 return;
4151 4541
… …
4165} 4555}
4166#endif 4556#endif
4167 4557
4168#if EV_ASYNC_ENABLE 4558#if EV_ASYNC_ENABLE
4169void 4559void
4170ev_async_start (EV_P_ ev_async *w) 4560ev_async_start (EV_P_ ev_async *w) EV_THROW
4171{ 4561{
4172 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
4173 return; 4563 return;
4174 4564
4175 w->sent = 0; 4565 w->sent = 0;
… …
4184 4574
4185 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4186} 4576}
4187 4577
4188void 4578void
4189ev_async_stop (EV_P_ ev_async *w) 4579ev_async_stop (EV_P_ ev_async *w) EV_THROW
4190{ 4580{
4191 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4192 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4193 return; 4583 return;
4194 4584
… …
4205 4595
4206 EV_FREQUENT_CHECK; 4596 EV_FREQUENT_CHECK;
4207} 4597}
4208 4598
4209void 4599void
4210ev_async_send (EV_P_ ev_async *w) 4600ev_async_send (EV_P_ ev_async *w) EV_THROW
4211{ 4601{
4212 w->sent = 1; 4602 w->sent = 1;
4213 evpipe_write (EV_A_ &async_pending); 4603 evpipe_write (EV_A_ &async_pending);
4214} 4604}
4215#endif 4605#endif
… …
4252 4642
4253 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));
4254} 4644}
4255 4645
4256void 4646void
4257ev_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
4258{ 4648{
4259 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));
4260 4650
4261 if (expect_false (!once)) 4651 if (expect_false (!once))
4262 { 4652 {
… …
4284 4674
4285/*****************************************************************************/ 4675/*****************************************************************************/
4286 4676
4287#if EV_WALK_ENABLE 4677#if EV_WALK_ENABLE
4288void ecb_cold 4678void ecb_cold
4289ev_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
4290{ 4680{
4291 int i, j; 4681 int i, j;
4292 ev_watcher_list *wl, *wn; 4682 ev_watcher_list *wl, *wn;
4293 4683
4294 if (types & (EV_IO | EV_EMBED)) 4684 if (types & (EV_IO | EV_EMBED))
… …
4400 4790
4401#if EV_MULTIPLICITY 4791#if EV_MULTIPLICITY
4402 #include "ev_wrap.h" 4792 #include "ev_wrap.h"
4403#endif 4793#endif
4404 4794
4405EV_CPP(})
4406

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines