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Comparing libev/ev.c (file contents):
Revision 1.480 by root, Thu Feb 18 04:48:05 2016 UTC vs.
Revision 1.506 by root, Thu Jul 11 05:41:39 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 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 *
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 132# endif
124# else 133# else
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
313 324
314#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
315# define EV_USE_PORT 0 326# define EV_USE_PORT 0
316#endif 327#endif
317 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
318#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
320# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
321# else 348# else
322# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
363 390
364#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 393#endif
367 394
368#ifdef ANDROID 395#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 396/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 397# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 398# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 400# undef EV_USE_CLOCK_SYSCALL
387# include <sys/syscall.h> 414# include <sys/syscall.h>
388# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
390# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
391# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
392# else 420# else
393# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
394# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
395# endif 423# endif
396#endif 424#endif
414 442
415#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
416/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
418# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
455# undef EV_USE_LINUXAIO
456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
419# endif 472# endif
420#endif 473#endif
421 474
422#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
423# include <sys/statfs.h> 476# include <sys/statfs.h>
465 uint32_t ssi_signo; 518 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
467}; 520};
468#endif 521#endif
469 522
470/**/ 523/*****************************************************************************/
471 524
472#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
473# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
474#else 527#else
475# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
480 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
481 */ 534 */
482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
484 537
485#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
487 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#define EV_TS_TO_MS(a) a * 1e3 + 0.9999
550#define EV_TS_FROM_US(us) us * 1e-6
488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 551#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 552#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
553#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
554#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
490 555
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 556/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */ 557/* ECB.H BEGIN */
493/* 558/*
494 * libecb - http://software.schmorp.de/pkg/libecb 559 * libecb - http://software.schmorp.de/pkg/libecb
532 597
533#ifndef ECB_H 598#ifndef ECB_H
534#define ECB_H 599#define ECB_H
535 600
536/* 16 bits major, 16 bits minor */ 601/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010005 602#define ECB_VERSION 0x00010006
538 603
539#ifdef _WIN32 604#ifdef _WIN32
540 typedef signed char int8_t; 605 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 606 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 607 typedef signed short int16_t;
607 #define ECB_CLANG_EXTENSION(x) 0 672 #define ECB_CLANG_EXTENSION(x) 0
608#endif 673#endif
609 674
610#define ECB_CPP (__cplusplus+0) 675#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 676#define ECB_CPP11 (__cplusplus >= 201103L)
677#define ECB_CPP14 (__cplusplus >= 201402L)
678#define ECB_CPP17 (__cplusplus >= 201703L)
612 679
613#if ECB_CPP 680#if ECB_CPP
614 #define ECB_C 0 681 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 682 #define ECB_STDC_VERSION 0
616#else 683#else
618 #define ECB_STDC_VERSION __STDC_VERSION__ 685 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 686#endif
620 687
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 688#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 689#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
690#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 691
624#if ECB_CPP 692#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 693 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 694 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 695 #define ECB_EXTERN_C_END }
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 721 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
654#endif 722#endif
655 723
656#ifndef ECB_MEMORY_FENCE 724#ifndef ECB_MEMORY_FENCE
657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 725 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
726 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
658 #if __i386 || __i386__ 727 #if __i386 || __i386__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 729 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 730 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
662 #elif ECB_GCC_AMD64 731 #elif ECB_GCC_AMD64
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 733 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 734 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 735 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \ 737 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ 738 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ 739 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
712 #if ECB_GCC_VERSION(4,7) 781 #if ECB_GCC_VERSION(4,7)
713 /* see comment below (stdatomic.h) about the C11 memory model. */ 782 /* see comment below (stdatomic.h) about the C11 memory model. */
714 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 783 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
715 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 784 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
716 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 785 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
786 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
717 787
718 #elif ECB_CLANG_EXTENSION(c_atomic) 788 #elif ECB_CLANG_EXTENSION(c_atomic)
719 /* see comment below (stdatomic.h) about the C11 memory model. */ 789 /* see comment below (stdatomic.h) about the C11 memory model. */
720 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 790 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
721 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 791 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
722 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 792 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
793 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
723 794
724 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 795 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
725 #define ECB_MEMORY_FENCE __sync_synchronize () 796 #define ECB_MEMORY_FENCE __sync_synchronize ()
726 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 797 #elif _MSC_VER >= 1500 /* VC++ 2008 */
727 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 798 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
737 #elif defined _WIN32 808 #elif defined _WIN32
738 #include <WinNT.h> 809 #include <WinNT.h>
739 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 810 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
740 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 811 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
741 #include <mbarrier.h> 812 #include <mbarrier.h>
742 #define ECB_MEMORY_FENCE __machine_rw_barrier () 813 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
743 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 814 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
744 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 815 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
816 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
745 #elif __xlC__ 817 #elif __xlC__
746 #define ECB_MEMORY_FENCE __sync () 818 #define ECB_MEMORY_FENCE __sync ()
747 #endif 819 #endif
748#endif 820#endif
749 821
750#ifndef ECB_MEMORY_FENCE 822#ifndef ECB_MEMORY_FENCE
751 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 823 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
752 /* we assume that these memory fences work on all variables/all memory accesses, */ 824 /* we assume that these memory fences work on all variables/all memory accesses, */
753 /* not just C11 atomics and atomic accesses */ 825 /* not just C11 atomics and atomic accesses */
754 #include <stdatomic.h> 826 #include <stdatomic.h>
755 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
756 /* any fence other than seq_cst, which isn't very efficient for us. */
757 /* Why that is, we don't know - either the C11 memory model is quite useless */
758 /* for most usages, or gcc and clang have a bug */
759 /* I *currently* lean towards the latter, and inefficiently implement */
760 /* all three of ecb's fences as a seq_cst fence */
761 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
762 /* for all __atomic_thread_fence's except seq_cst */
763 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 827 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
828 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
829 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
764 #endif 830 #endif
765#endif 831#endif
766 832
767#ifndef ECB_MEMORY_FENCE 833#ifndef ECB_MEMORY_FENCE
768 #if !ECB_AVOID_PTHREADS 834 #if !ECB_AVOID_PTHREADS
786 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 852 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
787#endif 853#endif
788 854
789#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 855#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
790 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 856 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
857#endif
858
859#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
860 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
791#endif 861#endif
792 862
793/*****************************************************************************/ 863/*****************************************************************************/
794 864
795#if ECB_CPP 865#if ECB_CPP
1504/* ECB.H END */ 1574/* ECB.H END */
1505 1575
1506#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1576#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1507/* if your architecture doesn't need memory fences, e.g. because it is 1577/* if your architecture doesn't need memory fences, e.g. because it is
1508 * single-cpu/core, or if you use libev in a project that doesn't use libev 1578 * single-cpu/core, or if you use libev in a project that doesn't use libev
1509 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1579 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1510 * libev, in which cases the memory fences become nops. 1580 * libev, in which cases the memory fences become nops.
1511 * alternatively, you can remove this #error and link against libpthread, 1581 * alternatively, you can remove this #error and link against libpthread,
1512 * which will then provide the memory fences. 1582 * which will then provide the memory fences.
1513 */ 1583 */
1514# error "memory fences not defined for your architecture, please report" 1584# error "memory fences not defined for your architecture, please report"
1518# define ECB_MEMORY_FENCE do { } while (0) 1588# define ECB_MEMORY_FENCE do { } while (0)
1519# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1589# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1520# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1590# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1521#endif 1591#endif
1522 1592
1523#define expect_false(cond) ecb_expect_false (cond)
1524#define expect_true(cond) ecb_expect_true (cond)
1525#define noinline ecb_noinline
1526
1527#define inline_size ecb_inline 1593#define inline_size ecb_inline
1528 1594
1529#if EV_FEATURE_CODE 1595#if EV_FEATURE_CODE
1530# define inline_speed ecb_inline 1596# define inline_speed ecb_inline
1531#else 1597#else
1532# define inline_speed noinline static 1598# define inline_speed ecb_noinline static
1533#endif 1599#endif
1600
1601/*****************************************************************************/
1602/* raw syscall wrappers */
1603
1604#if EV_NEED_SYSCALL
1605
1606#include <sys/syscall.h>
1607
1608/*
1609 * define some syscall wrappers for common architectures
1610 * this is mostly for nice looks during debugging, not performance.
1611 * our syscalls return < 0, not == -1, on error. which is good
1612 * enough for linux aio.
1613 * TODO: arm is also common nowadays, maybe even mips and x86
1614 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1615 */
1616#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1617 /* the costly errno access probably kills this for size optimisation */
1618
1619 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1620 ({ \
1621 long res; \
1622 register unsigned long r6 __asm__ ("r9" ); \
1623 register unsigned long r5 __asm__ ("r8" ); \
1624 register unsigned long r4 __asm__ ("r10"); \
1625 register unsigned long r3 __asm__ ("rdx"); \
1626 register unsigned long r2 __asm__ ("rsi"); \
1627 register unsigned long r1 __asm__ ("rdi"); \
1628 if (narg >= 6) r6 = (unsigned long)(arg6); \
1629 if (narg >= 5) r5 = (unsigned long)(arg5); \
1630 if (narg >= 4) r4 = (unsigned long)(arg4); \
1631 if (narg >= 3) r3 = (unsigned long)(arg3); \
1632 if (narg >= 2) r2 = (unsigned long)(arg2); \
1633 if (narg >= 1) r1 = (unsigned long)(arg1); \
1634 __asm__ __volatile__ ( \
1635 "syscall\n\t" \
1636 : "=a" (res) \
1637 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1638 : "cc", "r11", "cx", "memory"); \
1639 errno = -res; \
1640 res; \
1641 })
1642
1643#endif
1644
1645#ifdef ev_syscall
1646 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1647 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1648 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1649 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1650 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1651 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1652 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1653#else
1654 #define ev_syscall0(nr) syscall (nr)
1655 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1656 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1657 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1658 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1659 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1660 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1661#endif
1662
1663#endif
1664
1665/*****************************************************************************/
1534 1666
1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1667#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1536 1668
1537#if EV_MINPRI == EV_MAXPRI 1669#if EV_MINPRI == EV_MAXPRI
1538# define ABSPRI(w) (((W)w), 0) 1670# define ABSPRI(w) (((W)w), 0)
1539#else 1671#else
1540# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1672# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1541#endif 1673#endif
1542 1674
1543#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1675#define EMPTY /* required for microsofts broken pseudo-c compiler */
1544#define EMPTY2(a,b) /* used to suppress some warnings */
1545 1676
1546typedef ev_watcher *W; 1677typedef ev_watcher *W;
1547typedef ev_watcher_list *WL; 1678typedef ev_watcher_list *WL;
1548typedef ev_watcher_time *WT; 1679typedef ev_watcher_time *WT;
1549 1680
1574# include "ev_win32.c" 1705# include "ev_win32.c"
1575#endif 1706#endif
1576 1707
1577/*****************************************************************************/ 1708/*****************************************************************************/
1578 1709
1710#if EV_USE_LINUXAIO
1711# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1712#endif
1713
1579/* define a suitable floor function (only used by periodics atm) */ 1714/* define a suitable floor function (only used by periodics atm) */
1580 1715
1581#if EV_USE_FLOOR 1716#if EV_USE_FLOOR
1582# include <math.h> 1717# include <math.h>
1583# define ev_floor(v) floor (v) 1718# define ev_floor(v) floor (v)
1584#else 1719#else
1585 1720
1586#include <float.h> 1721#include <float.h>
1587 1722
1588/* a floor() replacement function, should be independent of ev_tstamp type */ 1723/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline 1724ecb_noinline
1590static ev_tstamp 1725static ev_tstamp
1591ev_floor (ev_tstamp v) 1726ev_floor (ev_tstamp v)
1592{ 1727{
1593 /* the choice of shift factor is not terribly important */ 1728 /* the choice of shift factor is not terribly important */
1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1729#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1596#else 1731#else
1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1732 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1598#endif 1733#endif
1599 1734
1735 /* special treatment for negative arguments */
1736 if (ecb_expect_false (v < 0.))
1737 {
1738 ev_tstamp f = -ev_floor (-v);
1739
1740 return f - (f == v ? 0 : 1);
1741 }
1742
1600 /* argument too large for an unsigned long? */ 1743 /* argument too large for an unsigned long? then reduce it */
1601 if (expect_false (v >= shift)) 1744 if (ecb_expect_false (v >= shift))
1602 { 1745 {
1603 ev_tstamp f; 1746 ev_tstamp f;
1604 1747
1605 if (v == v - 1.) 1748 if (v == v - 1.)
1606 return v; /* very large number */ 1749 return v; /* very large numbers are assumed to be integer */
1607 1750
1608 f = shift * ev_floor (v * (1. / shift)); 1751 f = shift * ev_floor (v * (1. / shift));
1609 return f + ev_floor (v - f); 1752 return f + ev_floor (v - f);
1610 } 1753 }
1611 1754
1612 /* special treatment for negative args? */
1613 if (expect_false (v < 0.))
1614 {
1615 ev_tstamp f = -ev_floor (-v);
1616
1617 return f - (f == v ? 0 : 1);
1618 }
1619
1620 /* fits into an unsigned long */ 1755 /* fits into an unsigned long */
1621 return (unsigned long)v; 1756 return (unsigned long)v;
1622} 1757}
1623 1758
1624#endif 1759#endif
1627 1762
1628#ifdef __linux 1763#ifdef __linux
1629# include <sys/utsname.h> 1764# include <sys/utsname.h>
1630#endif 1765#endif
1631 1766
1632noinline ecb_cold 1767ecb_noinline ecb_cold
1633static unsigned int 1768static unsigned int
1634ev_linux_version (void) 1769ev_linux_version (void)
1635{ 1770{
1636#ifdef __linux 1771#ifdef __linux
1637 unsigned int v = 0; 1772 unsigned int v = 0;
1667} 1802}
1668 1803
1669/*****************************************************************************/ 1804/*****************************************************************************/
1670 1805
1671#if EV_AVOID_STDIO 1806#if EV_AVOID_STDIO
1672noinline ecb_cold 1807ecb_noinline ecb_cold
1673static void 1808static void
1674ev_printerr (const char *msg) 1809ev_printerr (const char *msg)
1675{ 1810{
1676 write (STDERR_FILENO, msg, strlen (msg)); 1811 write (STDERR_FILENO, msg, strlen (msg));
1677} 1812}
1678#endif 1813#endif
1679 1814
1680static void (*syserr_cb)(const char *msg) EV_THROW; 1815static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1681 1816
1682ecb_cold 1817ecb_cold
1683void 1818void
1684ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1819ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1685{ 1820{
1686 syserr_cb = cb; 1821 syserr_cb = cb;
1687} 1822}
1688 1823
1689noinline ecb_cold 1824ecb_noinline ecb_cold
1690static void 1825static void
1691ev_syserr (const char *msg) 1826ev_syserr (const char *msg)
1692{ 1827{
1693 if (!msg) 1828 if (!msg)
1694 msg = "(libev) system error"; 1829 msg = "(libev) system error";
1708 abort (); 1843 abort ();
1709 } 1844 }
1710} 1845}
1711 1846
1712static void * 1847static void *
1713ev_realloc_emul (void *ptr, long size) EV_THROW 1848ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1714{ 1849{
1715 /* some systems, notably openbsd and darwin, fail to properly 1850 /* some systems, notably openbsd and darwin, fail to properly
1716 * implement realloc (x, 0) (as required by both ansi c-89 and 1851 * implement realloc (x, 0) (as required by both ansi c-89 and
1717 * the single unix specification, so work around them here. 1852 * the single unix specification, so work around them here.
1718 * recently, also (at least) fedora and debian started breaking it, 1853 * recently, also (at least) fedora and debian started breaking it,
1724 1859
1725 free (ptr); 1860 free (ptr);
1726 return 0; 1861 return 0;
1727} 1862}
1728 1863
1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1864static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1730 1865
1731ecb_cold 1866ecb_cold
1732void 1867void
1733ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1868ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1734{ 1869{
1735 alloc = cb; 1870 alloc = cb;
1736} 1871}
1737 1872
1738inline_speed void * 1873inline_speed void *
1765typedef struct 1900typedef struct
1766{ 1901{
1767 WL head; 1902 WL head;
1768 unsigned char events; /* the events watched for */ 1903 unsigned char events; /* the events watched for */
1769 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1904 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1770 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1905 unsigned char emask; /* some backends store the actual kernel mask in here */
1771 unsigned char unused; 1906 unsigned char eflags; /* flags field for use by backends */
1772#if EV_USE_EPOLL 1907#if EV_USE_EPOLL
1773 unsigned int egen; /* generation counter to counter epoll bugs */ 1908 unsigned int egen; /* generation counter to counter epoll bugs */
1774#endif 1909#endif
1775#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1910#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1776 SOCKET handle; 1911 SOCKET handle;
1840 static int ev_default_loop_ptr; 1975 static int ev_default_loop_ptr;
1841 1976
1842#endif 1977#endif
1843 1978
1844#if EV_FEATURE_API 1979#if EV_FEATURE_API
1845# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1980# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1846# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1981# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1847# define EV_INVOKE_PENDING invoke_cb (EV_A) 1982# define EV_INVOKE_PENDING invoke_cb (EV_A)
1848#else 1983#else
1849# define EV_RELEASE_CB (void)0 1984# define EV_RELEASE_CB (void)0
1850# define EV_ACQUIRE_CB (void)0 1985# define EV_ACQUIRE_CB (void)0
1851# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1986# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1855 1990
1856/*****************************************************************************/ 1991/*****************************************************************************/
1857 1992
1858#ifndef EV_HAVE_EV_TIME 1993#ifndef EV_HAVE_EV_TIME
1859ev_tstamp 1994ev_tstamp
1860ev_time (void) EV_THROW 1995ev_time (void) EV_NOEXCEPT
1861{ 1996{
1862#if EV_USE_REALTIME 1997#if EV_USE_REALTIME
1863 if (expect_true (have_realtime)) 1998 if (ecb_expect_true (have_realtime))
1864 { 1999 {
1865 struct timespec ts; 2000 struct timespec ts;
1866 clock_gettime (CLOCK_REALTIME, &ts); 2001 clock_gettime (CLOCK_REALTIME, &ts);
1867 return ts.tv_sec + ts.tv_nsec * 1e-9; 2002 return EV_TS_GET (ts);
1868 } 2003 }
1869#endif 2004#endif
1870 2005
1871 struct timeval tv; 2006 struct timeval tv;
1872 gettimeofday (&tv, 0); 2007 gettimeofday (&tv, 0);
1873 return tv.tv_sec + tv.tv_usec * 1e-6; 2008 return EV_TV_GET (tv);
1874} 2009}
1875#endif 2010#endif
1876 2011
1877inline_size ev_tstamp 2012inline_size ev_tstamp
1878get_clock (void) 2013get_clock (void)
1879{ 2014{
1880#if EV_USE_MONOTONIC 2015#if EV_USE_MONOTONIC
1881 if (expect_true (have_monotonic)) 2016 if (ecb_expect_true (have_monotonic))
1882 { 2017 {
1883 struct timespec ts; 2018 struct timespec ts;
1884 clock_gettime (CLOCK_MONOTONIC, &ts); 2019 clock_gettime (CLOCK_MONOTONIC, &ts);
1885 return ts.tv_sec + ts.tv_nsec * 1e-9; 2020 return EV_TS_GET (ts);
1886 } 2021 }
1887#endif 2022#endif
1888 2023
1889 return ev_time (); 2024 return ev_time ();
1890} 2025}
1891 2026
1892#if EV_MULTIPLICITY 2027#if EV_MULTIPLICITY
1893ev_tstamp 2028ev_tstamp
1894ev_now (EV_P) EV_THROW 2029ev_now (EV_P) EV_NOEXCEPT
1895{ 2030{
1896 return ev_rt_now; 2031 return ev_rt_now;
1897} 2032}
1898#endif 2033#endif
1899 2034
1900void 2035void
1901ev_sleep (ev_tstamp delay) EV_THROW 2036ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1902{ 2037{
1903 if (delay > 0.) 2038 if (delay > 0.)
1904 { 2039 {
1905#if EV_USE_NANOSLEEP 2040#if EV_USE_NANOSLEEP
1906 struct timespec ts; 2041 struct timespec ts;
1907 2042
1908 EV_TS_SET (ts, delay); 2043 EV_TS_SET (ts, delay);
1909 nanosleep (&ts, 0); 2044 nanosleep (&ts, 0);
1910#elif defined _WIN32 2045#elif defined _WIN32
2046 /* maybe this should round up, as ms is very low resolution */
2047 /* compared to select (µs) or nanosleep (ns) */
1911 Sleep ((unsigned long)(delay * 1e3)); 2048 Sleep ((unsigned long)(EV_TS_TO_MS (delay)));
1912#else 2049#else
1913 struct timeval tv; 2050 struct timeval tv;
1914 2051
1915 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2052 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1916 /* something not guaranteed by newer posix versions, but guaranteed */ 2053 /* something not guaranteed by newer posix versions, but guaranteed */
1946 } 2083 }
1947 2084
1948 return ncur; 2085 return ncur;
1949} 2086}
1950 2087
1951noinline ecb_cold 2088ecb_noinline ecb_cold
1952static void * 2089static void *
1953array_realloc (int elem, void *base, int *cur, int cnt) 2090array_realloc (int elem, void *base, int *cur, int cnt)
1954{ 2091{
1955 *cur = array_nextsize (elem, *cur, cnt); 2092 *cur = array_nextsize (elem, *cur, cnt);
1956 return ev_realloc (base, elem * *cur); 2093 return ev_realloc (base, elem * *cur);
1957} 2094}
1958 2095
2096#define array_needsize_noinit(base,offset,count)
2097
1959#define array_init_zero(base,count) \ 2098#define array_needsize_zerofill(base,offset,count) \
1960 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2099 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1961 2100
1962#define array_needsize(type,base,cur,cnt,init) \ 2101#define array_needsize(type,base,cur,cnt,init) \
1963 if (expect_false ((cnt) > (cur))) \ 2102 if (ecb_expect_false ((cnt) > (cur))) \
1964 { \ 2103 { \
1965 ecb_unused int ocur_ = (cur); \ 2104 ecb_unused int ocur_ = (cur); \
1966 (base) = (type *)array_realloc \ 2105 (base) = (type *)array_realloc \
1967 (sizeof (type), (base), &(cur), (cnt)); \ 2106 (sizeof (type), (base), &(cur), (cnt)); \
1968 init ((base) + (ocur_), (cur) - ocur_); \ 2107 init ((base), ocur_, ((cur) - ocur_)); \
1969 } 2108 }
1970 2109
1971#if 0 2110#if 0
1972#define array_slim(type,stem) \ 2111#define array_slim(type,stem) \
1973 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2112 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
1982 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2121 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1983 2122
1984/*****************************************************************************/ 2123/*****************************************************************************/
1985 2124
1986/* dummy callback for pending events */ 2125/* dummy callback for pending events */
1987noinline 2126ecb_noinline
1988static void 2127static void
1989pendingcb (EV_P_ ev_prepare *w, int revents) 2128pendingcb (EV_P_ ev_prepare *w, int revents)
1990{ 2129{
1991} 2130}
1992 2131
1993noinline 2132ecb_noinline
1994void 2133void
1995ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2134ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1996{ 2135{
1997 W w_ = (W)w; 2136 W w_ = (W)w;
1998 int pri = ABSPRI (w_); 2137 int pri = ABSPRI (w_);
1999 2138
2000 if (expect_false (w_->pending)) 2139 if (ecb_expect_false (w_->pending))
2001 pendings [pri][w_->pending - 1].events |= revents; 2140 pendings [pri][w_->pending - 1].events |= revents;
2002 else 2141 else
2003 { 2142 {
2004 w_->pending = ++pendingcnt [pri]; 2143 w_->pending = ++pendingcnt [pri];
2005 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2144 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2006 pendings [pri][w_->pending - 1].w = w_; 2145 pendings [pri][w_->pending - 1].w = w_;
2007 pendings [pri][w_->pending - 1].events = revents; 2146 pendings [pri][w_->pending - 1].events = revents;
2008 } 2147 }
2009 2148
2010 pendingpri = NUMPRI - 1; 2149 pendingpri = NUMPRI - 1;
2011} 2150}
2012 2151
2013inline_speed void 2152inline_speed void
2014feed_reverse (EV_P_ W w) 2153feed_reverse (EV_P_ W w)
2015{ 2154{
2016 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2155 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2017 rfeeds [rfeedcnt++] = w; 2156 rfeeds [rfeedcnt++] = w;
2018} 2157}
2019 2158
2020inline_size void 2159inline_size void
2021feed_reverse_done (EV_P_ int revents) 2160feed_reverse_done (EV_P_ int revents)
2056inline_speed void 2195inline_speed void
2057fd_event (EV_P_ int fd, int revents) 2196fd_event (EV_P_ int fd, int revents)
2058{ 2197{
2059 ANFD *anfd = anfds + fd; 2198 ANFD *anfd = anfds + fd;
2060 2199
2061 if (expect_true (!anfd->reify)) 2200 if (ecb_expect_true (!anfd->reify))
2062 fd_event_nocheck (EV_A_ fd, revents); 2201 fd_event_nocheck (EV_A_ fd, revents);
2063} 2202}
2064 2203
2065void 2204void
2066ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2205ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2067{ 2206{
2068 if (fd >= 0 && fd < anfdmax) 2207 if (fd >= 0 && fd < anfdmax)
2069 fd_event_nocheck (EV_A_ fd, revents); 2208 fd_event_nocheck (EV_A_ fd, revents);
2070} 2209}
2071 2210
2108 ev_io *w; 2247 ev_io *w;
2109 2248
2110 unsigned char o_events = anfd->events; 2249 unsigned char o_events = anfd->events;
2111 unsigned char o_reify = anfd->reify; 2250 unsigned char o_reify = anfd->reify;
2112 2251
2113 anfd->reify = 0; 2252 anfd->reify = 0;
2114 2253
2115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2254 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2116 { 2255 {
2117 anfd->events = 0; 2256 anfd->events = 0;
2118 2257
2119 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2258 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2120 anfd->events |= (unsigned char)w->events; 2259 anfd->events |= (unsigned char)w->events;
2136fd_change (EV_P_ int fd, int flags) 2275fd_change (EV_P_ int fd, int flags)
2137{ 2276{
2138 unsigned char reify = anfds [fd].reify; 2277 unsigned char reify = anfds [fd].reify;
2139 anfds [fd].reify |= flags; 2278 anfds [fd].reify |= flags;
2140 2279
2141 if (expect_true (!reify)) 2280 if (ecb_expect_true (!reify))
2142 { 2281 {
2143 ++fdchangecnt; 2282 ++fdchangecnt;
2144 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2283 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2145 fdchanges [fdchangecnt - 1] = fd; 2284 fdchanges [fdchangecnt - 1] = fd;
2146 } 2285 }
2147} 2286}
2148 2287
2149/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2288/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
2169 return fcntl (fd, F_GETFD) != -1; 2308 return fcntl (fd, F_GETFD) != -1;
2170#endif 2309#endif
2171} 2310}
2172 2311
2173/* called on EBADF to verify fds */ 2312/* called on EBADF to verify fds */
2174noinline ecb_cold 2313ecb_noinline ecb_cold
2175static void 2314static void
2176fd_ebadf (EV_P) 2315fd_ebadf (EV_P)
2177{ 2316{
2178 int fd; 2317 int fd;
2179 2318
2182 if (!fd_valid (fd) && errno == EBADF) 2321 if (!fd_valid (fd) && errno == EBADF)
2183 fd_kill (EV_A_ fd); 2322 fd_kill (EV_A_ fd);
2184} 2323}
2185 2324
2186/* called on ENOMEM in select/poll to kill some fds and retry */ 2325/* called on ENOMEM in select/poll to kill some fds and retry */
2187noinline ecb_cold 2326ecb_noinline ecb_cold
2188static void 2327static void
2189fd_enomem (EV_P) 2328fd_enomem (EV_P)
2190{ 2329{
2191 int fd; 2330 int fd;
2192 2331
2197 break; 2336 break;
2198 } 2337 }
2199} 2338}
2200 2339
2201/* usually called after fork if backend needs to re-arm all fds from scratch */ 2340/* usually called after fork if backend needs to re-arm all fds from scratch */
2202noinline 2341ecb_noinline
2203static void 2342static void
2204fd_rearm_all (EV_P) 2343fd_rearm_all (EV_P)
2205{ 2344{
2206 int fd; 2345 int fd;
2207 2346
2261 ev_tstamp minat; 2400 ev_tstamp minat;
2262 ANHE *minpos; 2401 ANHE *minpos;
2263 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2402 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2264 2403
2265 /* find minimum child */ 2404 /* find minimum child */
2266 if (expect_true (pos + DHEAP - 1 < E)) 2405 if (ecb_expect_true (pos + DHEAP - 1 < E))
2267 { 2406 {
2268 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2407 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2269 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2408 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2270 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2409 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2271 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2410 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2272 } 2411 }
2273 else if (pos < E) 2412 else if (pos < E)
2274 { 2413 {
2275 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2414 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2276 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2415 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2277 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2416 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2278 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2417 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2279 } 2418 }
2280 else 2419 else
2281 break; 2420 break;
2282 2421
2283 if (ANHE_at (he) <= minat) 2422 if (ANHE_at (he) <= minat)
2291 2430
2292 heap [k] = he; 2431 heap [k] = he;
2293 ev_active (ANHE_w (he)) = k; 2432 ev_active (ANHE_w (he)) = k;
2294} 2433}
2295 2434
2296#else /* 4HEAP */ 2435#else /* not 4HEAP */
2297 2436
2298#define HEAP0 1 2437#define HEAP0 1
2299#define HPARENT(k) ((k) >> 1) 2438#define HPARENT(k) ((k) >> 1)
2300#define UPHEAP_DONE(p,k) (!(p)) 2439#define UPHEAP_DONE(p,k) (!(p))
2301 2440
2389 2528
2390/*****************************************************************************/ 2529/*****************************************************************************/
2391 2530
2392#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2531#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2393 2532
2394noinline ecb_cold 2533ecb_noinline ecb_cold
2395static void 2534static void
2396evpipe_init (EV_P) 2535evpipe_init (EV_P)
2397{ 2536{
2398 if (!ev_is_active (&pipe_w)) 2537 if (!ev_is_active (&pipe_w))
2399 { 2538 {
2440inline_speed void 2579inline_speed void
2441evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2580evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2442{ 2581{
2443 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2582 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2444 2583
2445 if (expect_true (*flag)) 2584 if (ecb_expect_true (*flag))
2446 return; 2585 return;
2447 2586
2448 *flag = 1; 2587 *flag = 1;
2449 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2588 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2450 2589
2471#endif 2610#endif
2472 { 2611 {
2473#ifdef _WIN32 2612#ifdef _WIN32
2474 WSABUF buf; 2613 WSABUF buf;
2475 DWORD sent; 2614 DWORD sent;
2476 buf.buf = &buf; 2615 buf.buf = (char *)&buf;
2477 buf.len = 1; 2616 buf.len = 1;
2478 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2617 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2479#else 2618#else
2480 write (evpipe [1], &(evpipe [1]), 1); 2619 write (evpipe [1], &(evpipe [1]), 1);
2481#endif 2620#endif
2527 sig_pending = 0; 2666 sig_pending = 0;
2528 2667
2529 ECB_MEMORY_FENCE; 2668 ECB_MEMORY_FENCE;
2530 2669
2531 for (i = EV_NSIG - 1; i--; ) 2670 for (i = EV_NSIG - 1; i--; )
2532 if (expect_false (signals [i].pending)) 2671 if (ecb_expect_false (signals [i].pending))
2533 ev_feed_signal_event (EV_A_ i + 1); 2672 ev_feed_signal_event (EV_A_ i + 1);
2534 } 2673 }
2535#endif 2674#endif
2536 2675
2537#if EV_ASYNC_ENABLE 2676#if EV_ASYNC_ENABLE
2553} 2692}
2554 2693
2555/*****************************************************************************/ 2694/*****************************************************************************/
2556 2695
2557void 2696void
2558ev_feed_signal (int signum) EV_THROW 2697ev_feed_signal (int signum) EV_NOEXCEPT
2559{ 2698{
2560#if EV_MULTIPLICITY 2699#if EV_MULTIPLICITY
2561 EV_P; 2700 EV_P;
2562 ECB_MEMORY_FENCE_ACQUIRE; 2701 ECB_MEMORY_FENCE_ACQUIRE;
2563 EV_A = signals [signum - 1].loop; 2702 EV_A = signals [signum - 1].loop;
2578#endif 2717#endif
2579 2718
2580 ev_feed_signal (signum); 2719 ev_feed_signal (signum);
2581} 2720}
2582 2721
2583noinline 2722ecb_noinline
2584void 2723void
2585ev_feed_signal_event (EV_P_ int signum) EV_THROW 2724ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2586{ 2725{
2587 WL w; 2726 WL w;
2588 2727
2589 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2728 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2590 return; 2729 return;
2591 2730
2592 --signum; 2731 --signum;
2593 2732
2594#if EV_MULTIPLICITY 2733#if EV_MULTIPLICITY
2595 /* it is permissible to try to feed a signal to the wrong loop */ 2734 /* it is permissible to try to feed a signal to the wrong loop */
2596 /* or, likely more useful, feeding a signal nobody is waiting for */ 2735 /* or, likely more useful, feeding a signal nobody is waiting for */
2597 2736
2598 if (expect_false (signals [signum].loop != EV_A)) 2737 if (ecb_expect_false (signals [signum].loop != EV_A))
2599 return; 2738 return;
2600#endif 2739#endif
2601 2740
2602 signals [signum].pending = 0; 2741 signals [signum].pending = 0;
2603 ECB_MEMORY_FENCE_RELEASE; 2742 ECB_MEMORY_FENCE_RELEASE;
2699# include "ev_kqueue.c" 2838# include "ev_kqueue.c"
2700#endif 2839#endif
2701#if EV_USE_EPOLL 2840#if EV_USE_EPOLL
2702# include "ev_epoll.c" 2841# include "ev_epoll.c"
2703#endif 2842#endif
2843#if EV_USE_LINUXAIO
2844# include "ev_linuxaio.c"
2845#endif
2846#if EV_USE_IOURING
2847# include "ev_iouring.c"
2848#endif
2704#if EV_USE_POLL 2849#if EV_USE_POLL
2705# include "ev_poll.c" 2850# include "ev_poll.c"
2706#endif 2851#endif
2707#if EV_USE_SELECT 2852#if EV_USE_SELECT
2708# include "ev_select.c" 2853# include "ev_select.c"
2709#endif 2854#endif
2710 2855
2711ecb_cold int 2856ecb_cold int
2712ev_version_major (void) EV_THROW 2857ev_version_major (void) EV_NOEXCEPT
2713{ 2858{
2714 return EV_VERSION_MAJOR; 2859 return EV_VERSION_MAJOR;
2715} 2860}
2716 2861
2717ecb_cold int 2862ecb_cold int
2718ev_version_minor (void) EV_THROW 2863ev_version_minor (void) EV_NOEXCEPT
2719{ 2864{
2720 return EV_VERSION_MINOR; 2865 return EV_VERSION_MINOR;
2721} 2866}
2722 2867
2723/* return true if we are running with elevated privileges and should ignore env variables */ 2868/* return true if we are running with elevated privileges and should ignore env variables */
2732#endif 2877#endif
2733} 2878}
2734 2879
2735ecb_cold 2880ecb_cold
2736unsigned int 2881unsigned int
2737ev_supported_backends (void) EV_THROW 2882ev_supported_backends (void) EV_NOEXCEPT
2738{ 2883{
2739 unsigned int flags = 0; 2884 unsigned int flags = 0;
2740 2885
2741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2886 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2742 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2887 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2743 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2888 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2889 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2890 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2744 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2891 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2892 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2746 2893
2747 return flags; 2894 return flags;
2748} 2895}
2749 2896
2750ecb_cold 2897ecb_cold
2751unsigned int 2898unsigned int
2752ev_recommended_backends (void) EV_THROW 2899ev_recommended_backends (void) EV_NOEXCEPT
2753{ 2900{
2754 unsigned int flags = ev_supported_backends (); 2901 unsigned int flags = ev_supported_backends ();
2755 2902
2756#ifndef __NetBSD__ 2903#ifndef __NetBSD__
2757 /* kqueue is borked on everything but netbsd apparently */ 2904 /* kqueue is borked on everything but netbsd apparently */
2765#endif 2912#endif
2766#ifdef __FreeBSD__ 2913#ifdef __FreeBSD__
2767 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2914 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2768#endif 2915#endif
2769 2916
2917 /* TODO: linuxaio is very experimental */
2918#if !EV_RECOMMEND_LINUXAIO
2919 flags &= ~EVBACKEND_LINUXAIO;
2920#endif
2921 /* TODO: linuxaio is super experimental */
2922#if !EV_RECOMMEND_IOURING
2923 flags &= ~EVBACKEND_IOURING;
2924#endif
2925
2770 return flags; 2926 return flags;
2771} 2927}
2772 2928
2773ecb_cold 2929ecb_cold
2774unsigned int 2930unsigned int
2775ev_embeddable_backends (void) EV_THROW 2931ev_embeddable_backends (void) EV_NOEXCEPT
2776{ 2932{
2777 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2933 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2778 2934
2779 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2935 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2780 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2936 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2781 flags &= ~EVBACKEND_EPOLL; 2937 flags &= ~EVBACKEND_EPOLL;
2782 2938
2939 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2940
2941 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2942 * because our backend_fd is the epoll fd we need as fallback.
2943 * if the kernel ever is fixed, this might change...
2944 */
2945
2783 return flags; 2946 return flags;
2784} 2947}
2785 2948
2786unsigned int 2949unsigned int
2787ev_backend (EV_P) EV_THROW 2950ev_backend (EV_P) EV_NOEXCEPT
2788{ 2951{
2789 return backend; 2952 return backend;
2790} 2953}
2791 2954
2792#if EV_FEATURE_API 2955#if EV_FEATURE_API
2793unsigned int 2956unsigned int
2794ev_iteration (EV_P) EV_THROW 2957ev_iteration (EV_P) EV_NOEXCEPT
2795{ 2958{
2796 return loop_count; 2959 return loop_count;
2797} 2960}
2798 2961
2799unsigned int 2962unsigned int
2800ev_depth (EV_P) EV_THROW 2963ev_depth (EV_P) EV_NOEXCEPT
2801{ 2964{
2802 return loop_depth; 2965 return loop_depth;
2803} 2966}
2804 2967
2805void 2968void
2806ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2969ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2807{ 2970{
2808 io_blocktime = interval; 2971 io_blocktime = interval;
2809} 2972}
2810 2973
2811void 2974void
2812ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2975ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2813{ 2976{
2814 timeout_blocktime = interval; 2977 timeout_blocktime = interval;
2815} 2978}
2816 2979
2817void 2980void
2818ev_set_userdata (EV_P_ void *data) EV_THROW 2981ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2819{ 2982{
2820 userdata = data; 2983 userdata = data;
2821} 2984}
2822 2985
2823void * 2986void *
2824ev_userdata (EV_P) EV_THROW 2987ev_userdata (EV_P) EV_NOEXCEPT
2825{ 2988{
2826 return userdata; 2989 return userdata;
2827} 2990}
2828 2991
2829void 2992void
2830ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2993ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2831{ 2994{
2832 invoke_cb = invoke_pending_cb; 2995 invoke_cb = invoke_pending_cb;
2833} 2996}
2834 2997
2835void 2998void
2836ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2999ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2837{ 3000{
2838 release_cb = release; 3001 release_cb = release;
2839 acquire_cb = acquire; 3002 acquire_cb = acquire;
2840} 3003}
2841#endif 3004#endif
2842 3005
2843/* initialise a loop structure, must be zero-initialised */ 3006/* initialise a loop structure, must be zero-initialised */
2844noinline ecb_cold 3007ecb_noinline ecb_cold
2845static void 3008static void
2846loop_init (EV_P_ unsigned int flags) EV_THROW 3009loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2847{ 3010{
2848 if (!backend) 3011 if (!backend)
2849 { 3012 {
2850 origflags = flags; 3013 origflags = flags;
2851 3014
2909 3072
2910 if (!(flags & EVBACKEND_MASK)) 3073 if (!(flags & EVBACKEND_MASK))
2911 flags |= ev_recommended_backends (); 3074 flags |= ev_recommended_backends ();
2912 3075
2913#if EV_USE_IOCP 3076#if EV_USE_IOCP
2914 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3077 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2915#endif 3078#endif
2916#if EV_USE_PORT 3079#if EV_USE_PORT
2917 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2918#endif 3081#endif
2919#if EV_USE_KQUEUE 3082#if EV_USE_KQUEUE
2920 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3084#endif
3085#if EV_USE_IOURING
3086 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3087#endif
3088#if EV_USE_LINUXAIO
3089 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2921#endif 3090#endif
2922#if EV_USE_EPOLL 3091#if EV_USE_EPOLL
2923 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3092 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2924#endif 3093#endif
2925#if EV_USE_POLL 3094#if EV_USE_POLL
2926 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2927#endif 3096#endif
2928#if EV_USE_SELECT 3097#if EV_USE_SELECT
2929 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2930#endif 3099#endif
2931 3100
2932 ev_prepare_init (&pending_w, pendingcb); 3101 ev_prepare_init (&pending_w, pendingcb);
2933 3102
2934#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3103#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2951 return; 3120 return;
2952#endif 3121#endif
2953 3122
2954#if EV_CLEANUP_ENABLE 3123#if EV_CLEANUP_ENABLE
2955 /* queue cleanup watchers (and execute them) */ 3124 /* queue cleanup watchers (and execute them) */
2956 if (expect_false (cleanupcnt)) 3125 if (ecb_expect_false (cleanupcnt))
2957 { 3126 {
2958 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3127 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2959 EV_INVOKE_PENDING; 3128 EV_INVOKE_PENDING;
2960 } 3129 }
2961#endif 3130#endif
2989 3158
2990 if (backend_fd >= 0) 3159 if (backend_fd >= 0)
2991 close (backend_fd); 3160 close (backend_fd);
2992 3161
2993#if EV_USE_IOCP 3162#if EV_USE_IOCP
2994 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3163 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2995#endif 3164#endif
2996#if EV_USE_PORT 3165#if EV_USE_PORT
2997 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3166 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2998#endif 3167#endif
2999#if EV_USE_KQUEUE 3168#if EV_USE_KQUEUE
3000 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3169 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3170#endif
3171#if EV_USE_IOURING
3172 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3173#endif
3174#if EV_USE_LINUXAIO
3175 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3001#endif 3176#endif
3002#if EV_USE_EPOLL 3177#if EV_USE_EPOLL
3003 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3178 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3004#endif 3179#endif
3005#if EV_USE_POLL 3180#if EV_USE_POLL
3006 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3181 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3007#endif 3182#endif
3008#if EV_USE_SELECT 3183#if EV_USE_SELECT
3009 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3184 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3010#endif 3185#endif
3011 3186
3012 for (i = NUMPRI; i--; ) 3187 for (i = NUMPRI; i--; )
3013 { 3188 {
3014 array_free (pending, [i]); 3189 array_free (pending, [i]);
3056 3231
3057inline_size void 3232inline_size void
3058loop_fork (EV_P) 3233loop_fork (EV_P)
3059{ 3234{
3060#if EV_USE_PORT 3235#if EV_USE_PORT
3061 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3236 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3062#endif 3237#endif
3063#if EV_USE_KQUEUE 3238#if EV_USE_KQUEUE
3064 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3239 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3240#endif
3241#if EV_USE_IOURING
3242 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3243#endif
3244#if EV_USE_LINUXAIO
3245 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3065#endif 3246#endif
3066#if EV_USE_EPOLL 3247#if EV_USE_EPOLL
3067 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3248 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3068#endif 3249#endif
3069#if EV_USE_INOTIFY 3250#if EV_USE_INOTIFY
3070 infy_fork (EV_A); 3251 infy_fork (EV_A);
3071#endif 3252#endif
3072 3253
3092 3273
3093#if EV_MULTIPLICITY 3274#if EV_MULTIPLICITY
3094 3275
3095ecb_cold 3276ecb_cold
3096struct ev_loop * 3277struct ev_loop *
3097ev_loop_new (unsigned int flags) EV_THROW 3278ev_loop_new (unsigned int flags) EV_NOEXCEPT
3098{ 3279{
3099 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3280 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3100 3281
3101 memset (EV_A, 0, sizeof (struct ev_loop)); 3282 memset (EV_A, 0, sizeof (struct ev_loop));
3102 loop_init (EV_A_ flags); 3283 loop_init (EV_A_ flags);
3109} 3290}
3110 3291
3111#endif /* multiplicity */ 3292#endif /* multiplicity */
3112 3293
3113#if EV_VERIFY 3294#if EV_VERIFY
3114noinline ecb_cold 3295ecb_noinline ecb_cold
3115static void 3296static void
3116verify_watcher (EV_P_ W w) 3297verify_watcher (EV_P_ W w)
3117{ 3298{
3118 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3299 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3119 3300
3120 if (w->pending) 3301 if (w->pending)
3121 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3302 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3122} 3303}
3123 3304
3124noinline ecb_cold 3305ecb_noinline ecb_cold
3125static void 3306static void
3126verify_heap (EV_P_ ANHE *heap, int N) 3307verify_heap (EV_P_ ANHE *heap, int N)
3127{ 3308{
3128 int i; 3309 int i;
3129 3310
3135 3316
3136 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3317 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3137 } 3318 }
3138} 3319}
3139 3320
3140noinline ecb_cold 3321ecb_noinline ecb_cold
3141static void 3322static void
3142array_verify (EV_P_ W *ws, int cnt) 3323array_verify (EV_P_ W *ws, int cnt)
3143{ 3324{
3144 while (cnt--) 3325 while (cnt--)
3145 { 3326 {
3149} 3330}
3150#endif 3331#endif
3151 3332
3152#if EV_FEATURE_API 3333#if EV_FEATURE_API
3153void ecb_cold 3334void ecb_cold
3154ev_verify (EV_P) EV_THROW 3335ev_verify (EV_P) EV_NOEXCEPT
3155{ 3336{
3156#if EV_VERIFY 3337#if EV_VERIFY
3157 int i; 3338 int i;
3158 WL w, w2; 3339 WL w, w2;
3159 3340
3240ecb_cold 3421ecb_cold
3241struct ev_loop * 3422struct ev_loop *
3242#else 3423#else
3243int 3424int
3244#endif 3425#endif
3245ev_default_loop (unsigned int flags) EV_THROW 3426ev_default_loop (unsigned int flags) EV_NOEXCEPT
3246{ 3427{
3247 if (!ev_default_loop_ptr) 3428 if (!ev_default_loop_ptr)
3248 { 3429 {
3249#if EV_MULTIPLICITY 3430#if EV_MULTIPLICITY
3250 EV_P = ev_default_loop_ptr = &default_loop_struct; 3431 EV_P = ev_default_loop_ptr = &default_loop_struct;
3269 3450
3270 return ev_default_loop_ptr; 3451 return ev_default_loop_ptr;
3271} 3452}
3272 3453
3273void 3454void
3274ev_loop_fork (EV_P) EV_THROW 3455ev_loop_fork (EV_P) EV_NOEXCEPT
3275{ 3456{
3276 postfork = 1; 3457 postfork = 1;
3277} 3458}
3278 3459
3279/*****************************************************************************/ 3460/*****************************************************************************/
3283{ 3464{
3284 EV_CB_INVOKE ((W)w, revents); 3465 EV_CB_INVOKE ((W)w, revents);
3285} 3466}
3286 3467
3287unsigned int 3468unsigned int
3288ev_pending_count (EV_P) EV_THROW 3469ev_pending_count (EV_P) EV_NOEXCEPT
3289{ 3470{
3290 int pri; 3471 int pri;
3291 unsigned int count = 0; 3472 unsigned int count = 0;
3292 3473
3293 for (pri = NUMPRI; pri--; ) 3474 for (pri = NUMPRI; pri--; )
3294 count += pendingcnt [pri]; 3475 count += pendingcnt [pri];
3295 3476
3296 return count; 3477 return count;
3297} 3478}
3298 3479
3299noinline 3480ecb_noinline
3300void 3481void
3301ev_invoke_pending (EV_P) 3482ev_invoke_pending (EV_P)
3302{ 3483{
3303 pendingpri = NUMPRI; 3484 pendingpri = NUMPRI;
3304 3485
3305 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3486 do
3306 { 3487 {
3307 --pendingpri; 3488 --pendingpri;
3308 3489
3490 /* pendingpri possibly gets modified in the inner loop */
3309 while (pendingcnt [pendingpri]) 3491 while (pendingcnt [pendingpri])
3310 { 3492 {
3311 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3493 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3312 3494
3313 p->w->pending = 0; 3495 p->w->pending = 0;
3314 EV_CB_INVOKE (p->w, p->events); 3496 EV_CB_INVOKE (p->w, p->events);
3315 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
3316 } 3498 }
3317 } 3499 }
3500 while (pendingpri);
3318} 3501}
3319 3502
3320#if EV_IDLE_ENABLE 3503#if EV_IDLE_ENABLE
3321/* make idle watchers pending. this handles the "call-idle */ 3504/* make idle watchers pending. this handles the "call-idle */
3322/* only when higher priorities are idle" logic */ 3505/* only when higher priorities are idle" logic */
3323inline_size void 3506inline_size void
3324idle_reify (EV_P) 3507idle_reify (EV_P)
3325{ 3508{
3326 if (expect_false (idleall)) 3509 if (ecb_expect_false (idleall))
3327 { 3510 {
3328 int pri; 3511 int pri;
3329 3512
3330 for (pri = NUMPRI; pri--; ) 3513 for (pri = NUMPRI; pri--; )
3331 { 3514 {
3380 } 3563 }
3381} 3564}
3382 3565
3383#if EV_PERIODIC_ENABLE 3566#if EV_PERIODIC_ENABLE
3384 3567
3385noinline 3568ecb_noinline
3386static void 3569static void
3387periodic_recalc (EV_P_ ev_periodic *w) 3570periodic_recalc (EV_P_ ev_periodic *w)
3388{ 3571{
3389 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3572 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3390 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3573 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3393 while (at <= ev_rt_now) 3576 while (at <= ev_rt_now)
3394 { 3577 {
3395 ev_tstamp nat = at + w->interval; 3578 ev_tstamp nat = at + w->interval;
3396 3579
3397 /* when resolution fails us, we use ev_rt_now */ 3580 /* when resolution fails us, we use ev_rt_now */
3398 if (expect_false (nat == at)) 3581 if (ecb_expect_false (nat == at))
3399 { 3582 {
3400 at = ev_rt_now; 3583 at = ev_rt_now;
3401 break; 3584 break;
3402 } 3585 }
3403 3586
3449 } 3632 }
3450} 3633}
3451 3634
3452/* simply recalculate all periodics */ 3635/* simply recalculate all periodics */
3453/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3636/* TODO: maybe ensure that at least one event happens when jumping forward? */
3454noinline ecb_cold 3637ecb_noinline ecb_cold
3455static void 3638static void
3456periodics_reschedule (EV_P) 3639periodics_reschedule (EV_P)
3457{ 3640{
3458 int i; 3641 int i;
3459 3642
3473 reheap (periodics, periodiccnt); 3656 reheap (periodics, periodiccnt);
3474} 3657}
3475#endif 3658#endif
3476 3659
3477/* adjust all timers by a given offset */ 3660/* adjust all timers by a given offset */
3478noinline ecb_cold 3661ecb_noinline ecb_cold
3479static void 3662static void
3480timers_reschedule (EV_P_ ev_tstamp adjust) 3663timers_reschedule (EV_P_ ev_tstamp adjust)
3481{ 3664{
3482 int i; 3665 int i;
3483 3666
3493/* also detect if there was a timejump, and act accordingly */ 3676/* also detect if there was a timejump, and act accordingly */
3494inline_speed void 3677inline_speed void
3495time_update (EV_P_ ev_tstamp max_block) 3678time_update (EV_P_ ev_tstamp max_block)
3496{ 3679{
3497#if EV_USE_MONOTONIC 3680#if EV_USE_MONOTONIC
3498 if (expect_true (have_monotonic)) 3681 if (ecb_expect_true (have_monotonic))
3499 { 3682 {
3500 int i; 3683 int i;
3501 ev_tstamp odiff = rtmn_diff; 3684 ev_tstamp odiff = rtmn_diff;
3502 3685
3503 mn_now = get_clock (); 3686 mn_now = get_clock ();
3504 3687
3505 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3688 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3506 /* interpolate in the meantime */ 3689 /* interpolate in the meantime */
3507 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3690 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3508 { 3691 {
3509 ev_rt_now = rtmn_diff + mn_now; 3692 ev_rt_now = rtmn_diff + mn_now;
3510 return; 3693 return;
3511 } 3694 }
3512 3695
3526 ev_tstamp diff; 3709 ev_tstamp diff;
3527 rtmn_diff = ev_rt_now - mn_now; 3710 rtmn_diff = ev_rt_now - mn_now;
3528 3711
3529 diff = odiff - rtmn_diff; 3712 diff = odiff - rtmn_diff;
3530 3713
3531 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3714 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3532 return; /* all is well */ 3715 return; /* all is well */
3533 3716
3534 ev_rt_now = ev_time (); 3717 ev_rt_now = ev_time ();
3535 mn_now = get_clock (); 3718 mn_now = get_clock ();
3536 now_floor = mn_now; 3719 now_floor = mn_now;
3545 else 3728 else
3546#endif 3729#endif
3547 { 3730 {
3548 ev_rt_now = ev_time (); 3731 ev_rt_now = ev_time ();
3549 3732
3550 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3733 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3551 { 3734 {
3552 /* adjust timers. this is easy, as the offset is the same for all of them */ 3735 /* adjust timers. this is easy, as the offset is the same for all of them */
3553 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3736 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3554#if EV_PERIODIC_ENABLE 3737#if EV_PERIODIC_ENABLE
3555 periodics_reschedule (EV_A); 3738 periodics_reschedule (EV_A);
3578#if EV_VERIFY >= 2 3761#if EV_VERIFY >= 2
3579 ev_verify (EV_A); 3762 ev_verify (EV_A);
3580#endif 3763#endif
3581 3764
3582#ifndef _WIN32 3765#ifndef _WIN32
3583 if (expect_false (curpid)) /* penalise the forking check even more */ 3766 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3584 if (expect_false (getpid () != curpid)) 3767 if (ecb_expect_false (getpid () != curpid))
3585 { 3768 {
3586 curpid = getpid (); 3769 curpid = getpid ();
3587 postfork = 1; 3770 postfork = 1;
3588 } 3771 }
3589#endif 3772#endif
3590 3773
3591#if EV_FORK_ENABLE 3774#if EV_FORK_ENABLE
3592 /* we might have forked, so queue fork handlers */ 3775 /* we might have forked, so queue fork handlers */
3593 if (expect_false (postfork)) 3776 if (ecb_expect_false (postfork))
3594 if (forkcnt) 3777 if (forkcnt)
3595 { 3778 {
3596 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3779 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3597 EV_INVOKE_PENDING; 3780 EV_INVOKE_PENDING;
3598 } 3781 }
3599#endif 3782#endif
3600 3783
3601#if EV_PREPARE_ENABLE 3784#if EV_PREPARE_ENABLE
3602 /* queue prepare watchers (and execute them) */ 3785 /* queue prepare watchers (and execute them) */
3603 if (expect_false (preparecnt)) 3786 if (ecb_expect_false (preparecnt))
3604 { 3787 {
3605 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3788 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3606 EV_INVOKE_PENDING; 3789 EV_INVOKE_PENDING;
3607 } 3790 }
3608#endif 3791#endif
3609 3792
3610 if (expect_false (loop_done)) 3793 if (ecb_expect_false (loop_done))
3611 break; 3794 break;
3612 3795
3613 /* we might have forked, so reify kernel state if necessary */ 3796 /* we might have forked, so reify kernel state if necessary */
3614 if (expect_false (postfork)) 3797 if (ecb_expect_false (postfork))
3615 loop_fork (EV_A); 3798 loop_fork (EV_A);
3616 3799
3617 /* update fd-related kernel structures */ 3800 /* update fd-related kernel structures */
3618 fd_reify (EV_A); 3801 fd_reify (EV_A);
3619 3802
3631 /* from now on, we want a pipe-wake-up */ 3814 /* from now on, we want a pipe-wake-up */
3632 pipe_write_wanted = 1; 3815 pipe_write_wanted = 1;
3633 3816
3634 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3817 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3635 3818
3636 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3819 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3637 { 3820 {
3638 waittime = MAX_BLOCKTIME; 3821 waittime = MAX_BLOCKTIME;
3639 3822
3640 if (timercnt) 3823 if (timercnt)
3641 { 3824 {
3650 if (waittime > to) waittime = to; 3833 if (waittime > to) waittime = to;
3651 } 3834 }
3652#endif 3835#endif
3653 3836
3654 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3837 /* don't let timeouts decrease the waittime below timeout_blocktime */
3655 if (expect_false (waittime < timeout_blocktime)) 3838 if (ecb_expect_false (waittime < timeout_blocktime))
3656 waittime = timeout_blocktime; 3839 waittime = timeout_blocktime;
3657 3840
3658 /* at this point, we NEED to wait, so we have to ensure */ 3841 /* at this point, we NEED to wait, so we have to ensure */
3659 /* to pass a minimum nonzero value to the backend */ 3842 /* to pass a minimum nonzero value to the backend */
3660 if (expect_false (waittime < backend_mintime)) 3843 if (ecb_expect_false (waittime < backend_mintime))
3661 waittime = backend_mintime; 3844 waittime = backend_mintime;
3662 3845
3663 /* extra check because io_blocktime is commonly 0 */ 3846 /* extra check because io_blocktime is commonly 0 */
3664 if (expect_false (io_blocktime)) 3847 if (ecb_expect_false (io_blocktime))
3665 { 3848 {
3666 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3849 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3667 3850
3668 if (sleeptime > waittime - backend_mintime) 3851 if (sleeptime > waittime - backend_mintime)
3669 sleeptime = waittime - backend_mintime; 3852 sleeptime = waittime - backend_mintime;
3670 3853
3671 if (expect_true (sleeptime > 0.)) 3854 if (ecb_expect_true (sleeptime > 0.))
3672 { 3855 {
3673 ev_sleep (sleeptime); 3856 ev_sleep (sleeptime);
3674 waittime -= sleeptime; 3857 waittime -= sleeptime;
3675 } 3858 }
3676 } 3859 }
3690 { 3873 {
3691 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3874 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3692 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3875 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3693 } 3876 }
3694 3877
3695
3696 /* update ev_rt_now, do magic */ 3878 /* update ev_rt_now, do magic */
3697 time_update (EV_A_ waittime + sleeptime); 3879 time_update (EV_A_ waittime + sleeptime);
3698 } 3880 }
3699 3881
3700 /* queue pending timers and reschedule them */ 3882 /* queue pending timers and reschedule them */
3708 idle_reify (EV_A); 3890 idle_reify (EV_A);
3709#endif 3891#endif
3710 3892
3711#if EV_CHECK_ENABLE 3893#if EV_CHECK_ENABLE
3712 /* queue check watchers, to be executed first */ 3894 /* queue check watchers, to be executed first */
3713 if (expect_false (checkcnt)) 3895 if (ecb_expect_false (checkcnt))
3714 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3896 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3715#endif 3897#endif
3716 3898
3717 EV_INVOKE_PENDING; 3899 EV_INVOKE_PENDING;
3718 } 3900 }
3719 while (expect_true ( 3901 while (ecb_expect_true (
3720 activecnt 3902 activecnt
3721 && !loop_done 3903 && !loop_done
3722 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3904 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3723 )); 3905 ));
3724 3906
3731 3913
3732 return activecnt; 3914 return activecnt;
3733} 3915}
3734 3916
3735void 3917void
3736ev_break (EV_P_ int how) EV_THROW 3918ev_break (EV_P_ int how) EV_NOEXCEPT
3737{ 3919{
3738 loop_done = how; 3920 loop_done = how;
3739} 3921}
3740 3922
3741void 3923void
3742ev_ref (EV_P) EV_THROW 3924ev_ref (EV_P) EV_NOEXCEPT
3743{ 3925{
3744 ++activecnt; 3926 ++activecnt;
3745} 3927}
3746 3928
3747void 3929void
3748ev_unref (EV_P) EV_THROW 3930ev_unref (EV_P) EV_NOEXCEPT
3749{ 3931{
3750 --activecnt; 3932 --activecnt;
3751} 3933}
3752 3934
3753void 3935void
3754ev_now_update (EV_P) EV_THROW 3936ev_now_update (EV_P) EV_NOEXCEPT
3755{ 3937{
3756 time_update (EV_A_ 1e100); 3938 time_update (EV_A_ 1e100);
3757} 3939}
3758 3940
3759void 3941void
3760ev_suspend (EV_P) EV_THROW 3942ev_suspend (EV_P) EV_NOEXCEPT
3761{ 3943{
3762 ev_now_update (EV_A); 3944 ev_now_update (EV_A);
3763} 3945}
3764 3946
3765void 3947void
3766ev_resume (EV_P) EV_THROW 3948ev_resume (EV_P) EV_NOEXCEPT
3767{ 3949{
3768 ev_tstamp mn_prev = mn_now; 3950 ev_tstamp mn_prev = mn_now;
3769 3951
3770 ev_now_update (EV_A); 3952 ev_now_update (EV_A);
3771 timers_reschedule (EV_A_ mn_now - mn_prev); 3953 timers_reschedule (EV_A_ mn_now - mn_prev);
3788inline_size void 3970inline_size void
3789wlist_del (WL *head, WL elem) 3971wlist_del (WL *head, WL elem)
3790{ 3972{
3791 while (*head) 3973 while (*head)
3792 { 3974 {
3793 if (expect_true (*head == elem)) 3975 if (ecb_expect_true (*head == elem))
3794 { 3976 {
3795 *head = elem->next; 3977 *head = elem->next;
3796 break; 3978 break;
3797 } 3979 }
3798 3980
3810 w->pending = 0; 3992 w->pending = 0;
3811 } 3993 }
3812} 3994}
3813 3995
3814int 3996int
3815ev_clear_pending (EV_P_ void *w) EV_THROW 3997ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3816{ 3998{
3817 W w_ = (W)w; 3999 W w_ = (W)w;
3818 int pending = w_->pending; 4000 int pending = w_->pending;
3819 4001
3820 if (expect_true (pending)) 4002 if (ecb_expect_true (pending))
3821 { 4003 {
3822 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4004 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3823 p->w = (W)&pending_w; 4005 p->w = (W)&pending_w;
3824 w_->pending = 0; 4006 w_->pending = 0;
3825 return p->events; 4007 return p->events;
3852 w->active = 0; 4034 w->active = 0;
3853} 4035}
3854 4036
3855/*****************************************************************************/ 4037/*****************************************************************************/
3856 4038
3857noinline 4039ecb_noinline
3858void 4040void
3859ev_io_start (EV_P_ ev_io *w) EV_THROW 4041ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3860{ 4042{
3861 int fd = w->fd; 4043 int fd = w->fd;
3862 4044
3863 if (expect_false (ev_is_active (w))) 4045 if (ecb_expect_false (ev_is_active (w)))
3864 return; 4046 return;
3865 4047
3866 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4048 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3867 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4049 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3868 4050
4051#if EV_VERIFY >= 2
4052 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4053#endif
3869 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3870 4055
3871 ev_start (EV_A_ (W)w, 1); 4056 ev_start (EV_A_ (W)w, 1);
3872 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4057 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3873 wlist_add (&anfds[fd].head, (WL)w); 4058 wlist_add (&anfds[fd].head, (WL)w);
3874 4059
3875 /* common bug, apparently */ 4060 /* common bug, apparently */
3876 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4061 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3877 4062
3879 w->events &= ~EV__IOFDSET; 4064 w->events &= ~EV__IOFDSET;
3880 4065
3881 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3882} 4067}
3883 4068
3884noinline 4069ecb_noinline
3885void 4070void
3886ev_io_stop (EV_P_ ev_io *w) EV_THROW 4071ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3887{ 4072{
3888 clear_pending (EV_A_ (W)w); 4073 clear_pending (EV_A_ (W)w);
3889 if (expect_false (!ev_is_active (w))) 4074 if (ecb_expect_false (!ev_is_active (w)))
3890 return; 4075 return;
3891 4076
3892 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4077 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3893 4078
4079#if EV_VERIFY >= 2
4080 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4081#endif
3894 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3895 4083
3896 wlist_del (&anfds[w->fd].head, (WL)w); 4084 wlist_del (&anfds[w->fd].head, (WL)w);
3897 ev_stop (EV_A_ (W)w); 4085 ev_stop (EV_A_ (W)w);
3898 4086
3899 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4087 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3900 4088
3901 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3902} 4090}
3903 4091
3904noinline 4092ecb_noinline
3905void 4093void
3906ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4094ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3907{ 4095{
3908 if (expect_false (ev_is_active (w))) 4096 if (ecb_expect_false (ev_is_active (w)))
3909 return; 4097 return;
3910 4098
3911 ev_at (w) += mn_now; 4099 ev_at (w) += mn_now;
3912 4100
3913 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4101 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3914 4102
3915 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3916 4104
3917 ++timercnt; 4105 ++timercnt;
3918 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4106 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3919 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4107 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3920 ANHE_w (timers [ev_active (w)]) = (WT)w; 4108 ANHE_w (timers [ev_active (w)]) = (WT)w;
3921 ANHE_at_cache (timers [ev_active (w)]); 4109 ANHE_at_cache (timers [ev_active (w)]);
3922 upheap (timers, ev_active (w)); 4110 upheap (timers, ev_active (w));
3923 4111
3924 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3925 4113
3926 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4114 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3927} 4115}
3928 4116
3929noinline 4117ecb_noinline
3930void 4118void
3931ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4119ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3932{ 4120{
3933 clear_pending (EV_A_ (W)w); 4121 clear_pending (EV_A_ (W)w);
3934 if (expect_false (!ev_is_active (w))) 4122 if (ecb_expect_false (!ev_is_active (w)))
3935 return; 4123 return;
3936 4124
3937 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3938 4126
3939 { 4127 {
3941 4129
3942 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4130 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3943 4131
3944 --timercnt; 4132 --timercnt;
3945 4133
3946 if (expect_true (active < timercnt + HEAP0)) 4134 if (ecb_expect_true (active < timercnt + HEAP0))
3947 { 4135 {
3948 timers [active] = timers [timercnt + HEAP0]; 4136 timers [active] = timers [timercnt + HEAP0];
3949 adjustheap (timers, timercnt, active); 4137 adjustheap (timers, timercnt, active);
3950 } 4138 }
3951 } 4139 }
3955 ev_stop (EV_A_ (W)w); 4143 ev_stop (EV_A_ (W)w);
3956 4144
3957 EV_FREQUENT_CHECK; 4145 EV_FREQUENT_CHECK;
3958} 4146}
3959 4147
3960noinline 4148ecb_noinline
3961void 4149void
3962ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4150ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3963{ 4151{
3964 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3965 4153
3966 clear_pending (EV_A_ (W)w); 4154 clear_pending (EV_A_ (W)w);
3967 4155
3984 4172
3985 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3986} 4174}
3987 4175
3988ev_tstamp 4176ev_tstamp
3989ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3990{ 4178{
3991 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4179 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3992} 4180}
3993 4181
3994#if EV_PERIODIC_ENABLE 4182#if EV_PERIODIC_ENABLE
3995noinline 4183ecb_noinline
3996void 4184void
3997ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4185ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3998{ 4186{
3999 if (expect_false (ev_is_active (w))) 4187 if (ecb_expect_false (ev_is_active (w)))
4000 return; 4188 return;
4001 4189
4002 if (w->reschedule_cb) 4190 if (w->reschedule_cb)
4003 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4191 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4004 else if (w->interval) 4192 else if (w->interval)
4011 4199
4012 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
4013 4201
4014 ++periodiccnt; 4202 ++periodiccnt;
4015 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4203 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4016 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4204 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4017 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4205 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4018 ANHE_at_cache (periodics [ev_active (w)]); 4206 ANHE_at_cache (periodics [ev_active (w)]);
4019 upheap (periodics, ev_active (w)); 4207 upheap (periodics, ev_active (w));
4020 4208
4021 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
4022 4210
4023 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4211 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4024} 4212}
4025 4213
4026noinline 4214ecb_noinline
4027void 4215void
4028ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4216ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4029{ 4217{
4030 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
4031 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
4032 return; 4220 return;
4033 4221
4034 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
4035 4223
4036 { 4224 {
4038 4226
4039 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4227 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4040 4228
4041 --periodiccnt; 4229 --periodiccnt;
4042 4230
4043 if (expect_true (active < periodiccnt + HEAP0)) 4231 if (ecb_expect_true (active < periodiccnt + HEAP0))
4044 { 4232 {
4045 periodics [active] = periodics [periodiccnt + HEAP0]; 4233 periodics [active] = periodics [periodiccnt + HEAP0];
4046 adjustheap (periodics, periodiccnt, active); 4234 adjustheap (periodics, periodiccnt, active);
4047 } 4235 }
4048 } 4236 }
4050 ev_stop (EV_A_ (W)w); 4238 ev_stop (EV_A_ (W)w);
4051 4239
4052 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
4053} 4241}
4054 4242
4055noinline 4243ecb_noinline
4056void 4244void
4057ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4245ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4058{ 4246{
4059 /* TODO: use adjustheap and recalculation */ 4247 /* TODO: use adjustheap and recalculation */
4060 ev_periodic_stop (EV_A_ w); 4248 ev_periodic_stop (EV_A_ w);
4061 ev_periodic_start (EV_A_ w); 4249 ev_periodic_start (EV_A_ w);
4062} 4250}
4066# define SA_RESTART 0 4254# define SA_RESTART 0
4067#endif 4255#endif
4068 4256
4069#if EV_SIGNAL_ENABLE 4257#if EV_SIGNAL_ENABLE
4070 4258
4071noinline 4259ecb_noinline
4072void 4260void
4073ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4261ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4074{ 4262{
4075 if (expect_false (ev_is_active (w))) 4263 if (ecb_expect_false (ev_is_active (w)))
4076 return; 4264 return;
4077 4265
4078 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4266 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4079 4267
4080#if EV_MULTIPLICITY 4268#if EV_MULTIPLICITY
4149 } 4337 }
4150 4338
4151 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
4152} 4340}
4153 4341
4154noinline 4342ecb_noinline
4155void 4343void
4156ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4344ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4157{ 4345{
4158 clear_pending (EV_A_ (W)w); 4346 clear_pending (EV_A_ (W)w);
4159 if (expect_false (!ev_is_active (w))) 4347 if (ecb_expect_false (!ev_is_active (w)))
4160 return; 4348 return;
4161 4349
4162 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
4163 4351
4164 wlist_del (&signals [w->signum - 1].head, (WL)w); 4352 wlist_del (&signals [w->signum - 1].head, (WL)w);
4192#endif 4380#endif
4193 4381
4194#if EV_CHILD_ENABLE 4382#if EV_CHILD_ENABLE
4195 4383
4196void 4384void
4197ev_child_start (EV_P_ ev_child *w) EV_THROW 4385ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4198{ 4386{
4199#if EV_MULTIPLICITY 4387#if EV_MULTIPLICITY
4200 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4388 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4201#endif 4389#endif
4202 if (expect_false (ev_is_active (w))) 4390 if (ecb_expect_false (ev_is_active (w)))
4203 return; 4391 return;
4204 4392
4205 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
4206 4394
4207 ev_start (EV_A_ (W)w, 1); 4395 ev_start (EV_A_ (W)w, 1);
4209 4397
4210 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
4211} 4399}
4212 4400
4213void 4401void
4214ev_child_stop (EV_P_ ev_child *w) EV_THROW 4402ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4215{ 4403{
4216 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
4217 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
4218 return; 4406 return;
4219 4407
4220 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
4221 4409
4222 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4410 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
4236 4424
4237#define DEF_STAT_INTERVAL 5.0074891 4425#define DEF_STAT_INTERVAL 5.0074891
4238#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4426#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4239#define MIN_STAT_INTERVAL 0.1074891 4427#define MIN_STAT_INTERVAL 0.1074891
4240 4428
4241noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4429ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4242 4430
4243#if EV_USE_INOTIFY 4431#if EV_USE_INOTIFY
4244 4432
4245/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4433/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4246# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4434# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4247 4435
4248noinline 4436ecb_noinline
4249static void 4437static void
4250infy_add (EV_P_ ev_stat *w) 4438infy_add (EV_P_ ev_stat *w)
4251{ 4439{
4252 w->wd = inotify_add_watch (fs_fd, w->path, 4440 w->wd = inotify_add_watch (fs_fd, w->path,
4253 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4441 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4318 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4319 ev_timer_again (EV_A_ &w->timer); 4507 ev_timer_again (EV_A_ &w->timer);
4320 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4508 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4321} 4509}
4322 4510
4323noinline 4511ecb_noinline
4324static void 4512static void
4325infy_del (EV_P_ ev_stat *w) 4513infy_del (EV_P_ ev_stat *w)
4326{ 4514{
4327 int slot; 4515 int slot;
4328 int wd = w->wd; 4516 int wd = w->wd;
4336 4524
4337 /* remove this watcher, if others are watching it, they will rearm */ 4525 /* remove this watcher, if others are watching it, they will rearm */
4338 inotify_rm_watch (fs_fd, wd); 4526 inotify_rm_watch (fs_fd, wd);
4339} 4527}
4340 4528
4341noinline 4529ecb_noinline
4342static void 4530static void
4343infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4531infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4344{ 4532{
4345 if (slot < 0) 4533 if (slot < 0)
4346 /* overflow, need to check for all hash slots */ 4534 /* overflow, need to check for all hash slots */
4484#else 4672#else
4485# define EV_LSTAT(p,b) lstat (p, b) 4673# define EV_LSTAT(p,b) lstat (p, b)
4486#endif 4674#endif
4487 4675
4488void 4676void
4489ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4677ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4490{ 4678{
4491 if (lstat (w->path, &w->attr) < 0) 4679 if (lstat (w->path, &w->attr) < 0)
4492 w->attr.st_nlink = 0; 4680 w->attr.st_nlink = 0;
4493 else if (!w->attr.st_nlink) 4681 else if (!w->attr.st_nlink)
4494 w->attr.st_nlink = 1; 4682 w->attr.st_nlink = 1;
4495} 4683}
4496 4684
4497noinline 4685ecb_noinline
4498static void 4686static void
4499stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4687stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4500{ 4688{
4501 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4689 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4502 4690
4534 ev_feed_event (EV_A_ w, EV_STAT); 4722 ev_feed_event (EV_A_ w, EV_STAT);
4535 } 4723 }
4536} 4724}
4537 4725
4538void 4726void
4539ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4727ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4540{ 4728{
4541 if (expect_false (ev_is_active (w))) 4729 if (ecb_expect_false (ev_is_active (w)))
4542 return; 4730 return;
4543 4731
4544 ev_stat_stat (EV_A_ w); 4732 ev_stat_stat (EV_A_ w);
4545 4733
4546 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4734 if (w->interval < MIN_STAT_INTERVAL && w->interval)
4565 4753
4566 EV_FREQUENT_CHECK; 4754 EV_FREQUENT_CHECK;
4567} 4755}
4568 4756
4569void 4757void
4570ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4758ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4571{ 4759{
4572 clear_pending (EV_A_ (W)w); 4760 clear_pending (EV_A_ (W)w);
4573 if (expect_false (!ev_is_active (w))) 4761 if (ecb_expect_false (!ev_is_active (w)))
4574 return; 4762 return;
4575 4763
4576 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4577 4765
4578#if EV_USE_INOTIFY 4766#if EV_USE_INOTIFY
4591} 4779}
4592#endif 4780#endif
4593 4781
4594#if EV_IDLE_ENABLE 4782#if EV_IDLE_ENABLE
4595void 4783void
4596ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4784ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4597{ 4785{
4598 if (expect_false (ev_is_active (w))) 4786 if (ecb_expect_false (ev_is_active (w)))
4599 return; 4787 return;
4600 4788
4601 pri_adjust (EV_A_ (W)w); 4789 pri_adjust (EV_A_ (W)w);
4602 4790
4603 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
4606 int active = ++idlecnt [ABSPRI (w)]; 4794 int active = ++idlecnt [ABSPRI (w)];
4607 4795
4608 ++idleall; 4796 ++idleall;
4609 ev_start (EV_A_ (W)w, active); 4797 ev_start (EV_A_ (W)w, active);
4610 4798
4611 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4799 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4612 idles [ABSPRI (w)][active - 1] = w; 4800 idles [ABSPRI (w)][active - 1] = w;
4613 } 4801 }
4614 4802
4615 EV_FREQUENT_CHECK; 4803 EV_FREQUENT_CHECK;
4616} 4804}
4617 4805
4618void 4806void
4619ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4807ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4620{ 4808{
4621 clear_pending (EV_A_ (W)w); 4809 clear_pending (EV_A_ (W)w);
4622 if (expect_false (!ev_is_active (w))) 4810 if (ecb_expect_false (!ev_is_active (w)))
4623 return; 4811 return;
4624 4812
4625 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
4626 4814
4627 { 4815 {
4638} 4826}
4639#endif 4827#endif
4640 4828
4641#if EV_PREPARE_ENABLE 4829#if EV_PREPARE_ENABLE
4642void 4830void
4643ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4831ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4644{ 4832{
4645 if (expect_false (ev_is_active (w))) 4833 if (ecb_expect_false (ev_is_active (w)))
4646 return; 4834 return;
4647 4835
4648 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4649 4837
4650 ev_start (EV_A_ (W)w, ++preparecnt); 4838 ev_start (EV_A_ (W)w, ++preparecnt);
4651 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4839 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4652 prepares [preparecnt - 1] = w; 4840 prepares [preparecnt - 1] = w;
4653 4841
4654 EV_FREQUENT_CHECK; 4842 EV_FREQUENT_CHECK;
4655} 4843}
4656 4844
4657void 4845void
4658ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4846ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4659{ 4847{
4660 clear_pending (EV_A_ (W)w); 4848 clear_pending (EV_A_ (W)w);
4661 if (expect_false (!ev_is_active (w))) 4849 if (ecb_expect_false (!ev_is_active (w)))
4662 return; 4850 return;
4663 4851
4664 EV_FREQUENT_CHECK; 4852 EV_FREQUENT_CHECK;
4665 4853
4666 { 4854 {
4676} 4864}
4677#endif 4865#endif
4678 4866
4679#if EV_CHECK_ENABLE 4867#if EV_CHECK_ENABLE
4680void 4868void
4681ev_check_start (EV_P_ ev_check *w) EV_THROW 4869ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4682{ 4870{
4683 if (expect_false (ev_is_active (w))) 4871 if (ecb_expect_false (ev_is_active (w)))
4684 return; 4872 return;
4685 4873
4686 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4687 4875
4688 ev_start (EV_A_ (W)w, ++checkcnt); 4876 ev_start (EV_A_ (W)w, ++checkcnt);
4689 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4877 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4690 checks [checkcnt - 1] = w; 4878 checks [checkcnt - 1] = w;
4691 4879
4692 EV_FREQUENT_CHECK; 4880 EV_FREQUENT_CHECK;
4693} 4881}
4694 4882
4695void 4883void
4696ev_check_stop (EV_P_ ev_check *w) EV_THROW 4884ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4697{ 4885{
4698 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
4699 if (expect_false (!ev_is_active (w))) 4887 if (ecb_expect_false (!ev_is_active (w)))
4700 return; 4888 return;
4701 4889
4702 EV_FREQUENT_CHECK; 4890 EV_FREQUENT_CHECK;
4703 4891
4704 { 4892 {
4713 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4714} 4902}
4715#endif 4903#endif
4716 4904
4717#if EV_EMBED_ENABLE 4905#if EV_EMBED_ENABLE
4718noinline 4906ecb_noinline
4719void 4907void
4720ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4908ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4721{ 4909{
4722 ev_run (w->other, EVRUN_NOWAIT); 4910 ev_run (w->other, EVRUN_NOWAIT);
4723} 4911}
4724 4912
4725static void 4913static void
4773 ev_idle_stop (EV_A_ idle); 4961 ev_idle_stop (EV_A_ idle);
4774} 4962}
4775#endif 4963#endif
4776 4964
4777void 4965void
4778ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4966ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4779{ 4967{
4780 if (expect_false (ev_is_active (w))) 4968 if (ecb_expect_false (ev_is_active (w)))
4781 return; 4969 return;
4782 4970
4783 { 4971 {
4784 EV_P = w->other; 4972 EV_P = w->other;
4785 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4973 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
4804 4992
4805 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4806} 4994}
4807 4995
4808void 4996void
4809ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4997ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4810{ 4998{
4811 clear_pending (EV_A_ (W)w); 4999 clear_pending (EV_A_ (W)w);
4812 if (expect_false (!ev_is_active (w))) 5000 if (ecb_expect_false (!ev_is_active (w)))
4813 return; 5001 return;
4814 5002
4815 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4816 5004
4817 ev_io_stop (EV_A_ &w->io); 5005 ev_io_stop (EV_A_ &w->io);
4824} 5012}
4825#endif 5013#endif
4826 5014
4827#if EV_FORK_ENABLE 5015#if EV_FORK_ENABLE
4828void 5016void
4829ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5017ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4830{ 5018{
4831 if (expect_false (ev_is_active (w))) 5019 if (ecb_expect_false (ev_is_active (w)))
4832 return; 5020 return;
4833 5021
4834 EV_FREQUENT_CHECK; 5022 EV_FREQUENT_CHECK;
4835 5023
4836 ev_start (EV_A_ (W)w, ++forkcnt); 5024 ev_start (EV_A_ (W)w, ++forkcnt);
4837 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5025 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4838 forks [forkcnt - 1] = w; 5026 forks [forkcnt - 1] = w;
4839 5027
4840 EV_FREQUENT_CHECK; 5028 EV_FREQUENT_CHECK;
4841} 5029}
4842 5030
4843void 5031void
4844ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5032ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4845{ 5033{
4846 clear_pending (EV_A_ (W)w); 5034 clear_pending (EV_A_ (W)w);
4847 if (expect_false (!ev_is_active (w))) 5035 if (ecb_expect_false (!ev_is_active (w)))
4848 return; 5036 return;
4849 5037
4850 EV_FREQUENT_CHECK; 5038 EV_FREQUENT_CHECK;
4851 5039
4852 { 5040 {
4862} 5050}
4863#endif 5051#endif
4864 5052
4865#if EV_CLEANUP_ENABLE 5053#if EV_CLEANUP_ENABLE
4866void 5054void
4867ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5055ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4868{ 5056{
4869 if (expect_false (ev_is_active (w))) 5057 if (ecb_expect_false (ev_is_active (w)))
4870 return; 5058 return;
4871 5059
4872 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4873 5061
4874 ev_start (EV_A_ (W)w, ++cleanupcnt); 5062 ev_start (EV_A_ (W)w, ++cleanupcnt);
4875 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5063 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4876 cleanups [cleanupcnt - 1] = w; 5064 cleanups [cleanupcnt - 1] = w;
4877 5065
4878 /* cleanup watchers should never keep a refcount on the loop */ 5066 /* cleanup watchers should never keep a refcount on the loop */
4879 ev_unref (EV_A); 5067 ev_unref (EV_A);
4880 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4881} 5069}
4882 5070
4883void 5071void
4884ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5072ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4885{ 5073{
4886 clear_pending (EV_A_ (W)w); 5074 clear_pending (EV_A_ (W)w);
4887 if (expect_false (!ev_is_active (w))) 5075 if (ecb_expect_false (!ev_is_active (w)))
4888 return; 5076 return;
4889 5077
4890 EV_FREQUENT_CHECK; 5078 EV_FREQUENT_CHECK;
4891 ev_ref (EV_A); 5079 ev_ref (EV_A);
4892 5080
4903} 5091}
4904#endif 5092#endif
4905 5093
4906#if EV_ASYNC_ENABLE 5094#if EV_ASYNC_ENABLE
4907void 5095void
4908ev_async_start (EV_P_ ev_async *w) EV_THROW 5096ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4909{ 5097{
4910 if (expect_false (ev_is_active (w))) 5098 if (ecb_expect_false (ev_is_active (w)))
4911 return; 5099 return;
4912 5100
4913 w->sent = 0; 5101 w->sent = 0;
4914 5102
4915 evpipe_init (EV_A); 5103 evpipe_init (EV_A);
4916 5104
4917 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4918 5106
4919 ev_start (EV_A_ (W)w, ++asynccnt); 5107 ev_start (EV_A_ (W)w, ++asynccnt);
4920 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5108 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4921 asyncs [asynccnt - 1] = w; 5109 asyncs [asynccnt - 1] = w;
4922 5110
4923 EV_FREQUENT_CHECK; 5111 EV_FREQUENT_CHECK;
4924} 5112}
4925 5113
4926void 5114void
4927ev_async_stop (EV_P_ ev_async *w) EV_THROW 5115ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4928{ 5116{
4929 clear_pending (EV_A_ (W)w); 5117 clear_pending (EV_A_ (W)w);
4930 if (expect_false (!ev_is_active (w))) 5118 if (ecb_expect_false (!ev_is_active (w)))
4931 return; 5119 return;
4932 5120
4933 EV_FREQUENT_CHECK; 5121 EV_FREQUENT_CHECK;
4934 5122
4935 { 5123 {
4943 5131
4944 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4945} 5133}
4946 5134
4947void 5135void
4948ev_async_send (EV_P_ ev_async *w) EV_THROW 5136ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4949{ 5137{
4950 w->sent = 1; 5138 w->sent = 1;
4951 evpipe_write (EV_A_ &async_pending); 5139 evpipe_write (EV_A_ &async_pending);
4952} 5140}
4953#endif 5141#endif
4990 5178
4991 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5179 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4992} 5180}
4993 5181
4994void 5182void
4995ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5183ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4996{ 5184{
4997 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5185 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4998
4999 if (expect_false (!once))
5000 {
5001 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
5002 return;
5003 }
5004 5186
5005 once->cb = cb; 5187 once->cb = cb;
5006 once->arg = arg; 5188 once->arg = arg;
5007 5189
5008 ev_init (&once->io, once_cb_io); 5190 ev_init (&once->io, once_cb_io);
5023/*****************************************************************************/ 5205/*****************************************************************************/
5024 5206
5025#if EV_WALK_ENABLE 5207#if EV_WALK_ENABLE
5026ecb_cold 5208ecb_cold
5027void 5209void
5028ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5210ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
5029{ 5211{
5030 int i, j; 5212 int i, j;
5031 ev_watcher_list *wl, *wn; 5213 ev_watcher_list *wl, *wn;
5032 5214
5033 if (types & (EV_IO | EV_EMBED)) 5215 if (types & (EV_IO | EV_EMBED))

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