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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 1.520 by root, Sat Dec 28 07:44:15 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 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
165#endif 190# endif
191
192#endif
193
194/* OS X, in its infinite idiocy, actually HARDCODES
195 * a limit of 1024 into their select. Where people have brains,
196 * OS X engineers apparently have a vacuum. Or maybe they were
197 * ordered to have a vacuum, or they do anything for money.
198 * This might help. Or not.
199 * Note that this must be defined early, as other include files
200 * will rely on this define as well.
201 */
202#define _DARWIN_UNLIMITED_SELECT 1
166 203
167#include <stdlib.h> 204#include <stdlib.h>
168#include <string.h> 205#include <string.h>
169#include <fcntl.h> 206#include <fcntl.h>
170#include <stddef.h> 207#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 245# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 246# define EV_SELECT_IS_WINSOCKET 1
210# endif 247# endif
211# undef EV_AVOID_STDIO 248# undef EV_AVOID_STDIO
212#endif 249#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
221 250
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 251/* this block tries to deduce configuration from header-defined symbols and defaults */
223 252
224/* try to deduce the maximum number of signals on this platform */ 253/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 254#if defined EV_NSIG
… …
313 342
314#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
315# define EV_USE_PORT 0 344# define EV_USE_PORT 0
316#endif 345#endif
317 346
347#ifndef EV_USE_LINUXAIO
348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
349# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
350# else
351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
360# endif
361#endif
362
318#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
320# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
321# else 366# else
322# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
345# else 390# else
346# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
347# endif 392# endif
348#endif 393#endif
349 394
395#ifndef EV_USE_TIMERFD
396# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
397# define EV_USE_TIMERFD EV_FEATURE_OS
398# else
399# define EV_USE_TIMERFD 0
400# endif
401#endif
402
350#if 0 /* debugging */ 403#if 0 /* debugging */
351# define EV_VERIFY 3 404# define EV_VERIFY 3
352# define EV_USE_4HEAP 1 405# define EV_USE_4HEAP 1
353# define EV_HEAP_CACHE_AT 1 406# define EV_HEAP_CACHE_AT 1
354#endif 407#endif
… …
363 416
364#ifndef EV_HEAP_CACHE_AT 417#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 418# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 419#endif
367 420
368#ifdef ANDROID 421#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 422/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 423# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 424# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 425/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 426# undef EV_USE_CLOCK_SYSCALL
… …
387# include <sys/syscall.h> 440# include <sys/syscall.h>
388# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
390# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
391# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
392# else 446# else
393# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
394# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
395# endif 449# endif
396#endif 450#endif
… …
410#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
411# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
412# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
413#endif 467#endif
414 468
469#if __linux && EV_USE_IOURING
470# include <linux/version.h>
471# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
472# undef EV_USE_IOURING
473# define EV_USE_IOURING 0
474# endif
475#endif
476
415#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
416/* hp-ux has it in sys/time.h, which we unconditionally include above */ 478/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
418# include <sys/select.h> 480# include <sys/select.h>
481# endif
482#endif
483
484#if EV_USE_LINUXAIO
485# include <sys/syscall.h>
486# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
487# define EV_NEED_SYSCALL 1
488# else
489# undef EV_USE_LINUXAIO
490# define EV_USE_LINUXAIO 0
491# endif
492#endif
493
494#if EV_USE_IOURING
495# include <sys/syscall.h>
496# if !SYS_io_uring_setup && __linux && !__alpha
497# define SYS_io_uring_setup 425
498# define SYS_io_uring_enter 426
499# define SYS_io_uring_wregister 427
500# endif
501# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
502# define EV_NEED_SYSCALL 1
503# else
504# undef EV_USE_IOURING
505# define EV_USE_IOURING 0
419# endif 506# endif
420#endif 507#endif
421 508
422#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
423# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
428# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
429# endif 516# endif
430#endif 517#endif
431 518
432#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 520/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
434# include <stdint.h> 521# include <stdint.h>
435# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
436# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
437# endif 524# endif
438# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
444# endif 531# endif
445EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
446#endif 533#endif
447 534
448#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
449/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 536/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
450# include <stdint.h> 537# include <stdint.h>
451# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
452# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
453# endif 540# endif
454# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
456# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
457# else 544# else
458# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
459# endif 546# endif
460# endif 547# endif
461EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 548EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
462 549
463struct signalfd_siginfo 550struct signalfd_siginfo
464{ 551{
465 uint32_t ssi_signo; 552 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
467}; 554};
468#endif 555#endif
469 556
470/**/ 557/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
558#if EV_USE_TIMERFD
559# include <sys/timerfd.h>
560/* timerfd is only used for periodics */
561# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
562# undef EV_USE_TIMERFD
563# define EV_USE_TIMERFD 0
564# endif
565#endif
566
567/*****************************************************************************/
471 568
472#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
473# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
474#else 571#else
475# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
480 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
481 */ 578 */
482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
484 581
485#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 582#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) */ 583#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
487 584
585/* find a portable timestamp that is "always" in the future but fits into time_t.
586 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
587 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
588#define EV_TSTAMP_HUGE \
589 (sizeof (time_t) >= 8 ? 10000000000000. \
590 : 0 < (time_t)4294967295 ? 4294967295. \
591 : 2147483647.) \
592
593#ifndef EV_TS_CONST
594# define EV_TS_CONST(nv) nv
595# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
596# define EV_TS_FROM_USEC(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) 597# 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) 598# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
599# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
600# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
601#endif
490 602
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 603/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */ 604/* ECB.H BEGIN */
493/* 605/*
494 * libecb - http://software.schmorp.de/pkg/libecb 606 * libecb - http://software.schmorp.de/pkg/libecb
… …
532 644
533#ifndef ECB_H 645#ifndef ECB_H
534#define ECB_H 646#define ECB_H
535 647
536/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010005 649#define ECB_VERSION 0x00010006
538 650
539#ifdef _WIN32 651#ifdef _WIN32
540 typedef signed char int8_t; 652 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
607 #define ECB_CLANG_EXTENSION(x) 0 719 #define ECB_CLANG_EXTENSION(x) 0
608#endif 720#endif
609 721
610#define ECB_CPP (__cplusplus+0) 722#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 723#define ECB_CPP11 (__cplusplus >= 201103L)
724#define ECB_CPP14 (__cplusplus >= 201402L)
725#define ECB_CPP17 (__cplusplus >= 201703L)
612 726
613#if ECB_CPP 727#if ECB_CPP
614 #define ECB_C 0 728 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 729 #define ECB_STDC_VERSION 0
616#else 730#else
… …
618 #define ECB_STDC_VERSION __STDC_VERSION__ 732 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 733#endif
620 734
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 735#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 736#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
737#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 738
624#if ECB_CPP 739#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 740 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 741 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 742 #define ECB_EXTERN_C_END }
… …
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 768 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
654#endif 769#endif
655 770
656#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 772 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
773 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
658 #if __i386 || __i386__ 774 #if __i386 || __i386__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
662 #elif ECB_GCC_AMD64 778 #elif ECB_GCC_AMD64
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 779 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 780 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 781 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 782 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 783 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \ 784 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ 785 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ 786 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
… …
712 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
713 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
714 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
715 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
716 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 832 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
833 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
717 834
718 #elif ECB_CLANG_EXTENSION(c_atomic) 835 #elif ECB_CLANG_EXTENSION(c_atomic)
719 /* see comment below (stdatomic.h) about the C11 memory model. */ 836 /* see comment below (stdatomic.h) about the C11 memory model. */
720 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
721 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
722 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 839 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
840 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
723 841
724 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
725 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
726 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
727 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 845 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
737 #elif defined _WIN32 855 #elif defined _WIN32
738 #include <WinNT.h> 856 #include <WinNT.h>
739 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
740 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
741 #include <mbarrier.h> 859 #include <mbarrier.h>
742 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
743 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
744 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 862 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
863 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
745 #elif __xlC__ 864 #elif __xlC__
746 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
747 #endif 866 #endif
748#endif 867#endif
749 868
750#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
751 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
752 /* we assume that these memory fences work on all variables/all memory accesses, */ 871 /* we assume that these memory fences work on all variables/all memory accesses, */
753 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
754 #include <stdatomic.h> 873 #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) 874 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
875 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
876 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
764 #endif 877 #endif
765#endif 878#endif
766 879
767#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
768 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
786 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 899 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
787#endif 900#endif
788 901
789#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
790 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 903 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
904#endif
905
906#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
907 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
791#endif 908#endif
792 909
793/*****************************************************************************/ 910/*****************************************************************************/
794 911
795#if ECB_CPP 912#if ECB_CPP
… …
1504/* ECB.H END */ 1621/* ECB.H END */
1505 1622
1506#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1507/* if your architecture doesn't need memory fences, e.g. because it is 1624/* 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 1625 * 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 1626 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1510 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
1511 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
1512 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
1513 */ 1630 */
1514# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1518# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1519# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1520# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1521#endif 1638#endif
1522 1639
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 1640#define inline_size ecb_inline
1528 1641
1529#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1530# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1531#else 1644#else
1532# define inline_speed noinline static 1645# define inline_speed ecb_noinline static
1533#endif 1646#endif
1647
1648/*****************************************************************************/
1649/* raw syscall wrappers */
1650
1651#if EV_NEED_SYSCALL
1652
1653#include <sys/syscall.h>
1654
1655/*
1656 * define some syscall wrappers for common architectures
1657 * this is mostly for nice looks during debugging, not performance.
1658 * our syscalls return < 0, not == -1, on error. which is good
1659 * enough for linux aio.
1660 * TODO: arm is also common nowadays, maybe even mips and x86
1661 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1662 */
1663#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1664 /* the costly errno access probably kills this for size optimisation */
1665
1666 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1667 ({ \
1668 long res; \
1669 register unsigned long r6 __asm__ ("r9" ); \
1670 register unsigned long r5 __asm__ ("r8" ); \
1671 register unsigned long r4 __asm__ ("r10"); \
1672 register unsigned long r3 __asm__ ("rdx"); \
1673 register unsigned long r2 __asm__ ("rsi"); \
1674 register unsigned long r1 __asm__ ("rdi"); \
1675 if (narg >= 6) r6 = (unsigned long)(arg6); \
1676 if (narg >= 5) r5 = (unsigned long)(arg5); \
1677 if (narg >= 4) r4 = (unsigned long)(arg4); \
1678 if (narg >= 3) r3 = (unsigned long)(arg3); \
1679 if (narg >= 2) r2 = (unsigned long)(arg2); \
1680 if (narg >= 1) r1 = (unsigned long)(arg1); \
1681 __asm__ __volatile__ ( \
1682 "syscall\n\t" \
1683 : "=a" (res) \
1684 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1685 : "cc", "r11", "cx", "memory"); \
1686 errno = -res; \
1687 res; \
1688 })
1689
1690#endif
1691
1692#ifdef ev_syscall
1693 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1694 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1695 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1696 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1697 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1698 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1699 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1700#else
1701 #define ev_syscall0(nr) syscall (nr)
1702 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1703 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1704 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1705 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1706 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1707 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1708#endif
1709
1710#endif
1711
1712/*****************************************************************************/
1534 1713
1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1714#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1536 1715
1537#if EV_MINPRI == EV_MAXPRI 1716#if EV_MINPRI == EV_MAXPRI
1538# define ABSPRI(w) (((W)w), 0) 1717# define ABSPRI(w) (((W)w), 0)
1539#else 1718#else
1540# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1719# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1541#endif 1720#endif
1542 1721
1543#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1722#define EMPTY /* required for microsofts broken pseudo-c compiler */
1544#define EMPTY2(a,b) /* used to suppress some warnings */
1545 1723
1546typedef ev_watcher *W; 1724typedef ev_watcher *W;
1547typedef ev_watcher_list *WL; 1725typedef ev_watcher_list *WL;
1548typedef ev_watcher_time *WT; 1726typedef ev_watcher_time *WT;
1549 1727
… …
1574# include "ev_win32.c" 1752# include "ev_win32.c"
1575#endif 1753#endif
1576 1754
1577/*****************************************************************************/ 1755/*****************************************************************************/
1578 1756
1757#if EV_USE_LINUXAIO
1758# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1759#endif
1760
1579/* define a suitable floor function (only used by periodics atm) */ 1761/* define a suitable floor function (only used by periodics atm) */
1580 1762
1581#if EV_USE_FLOOR 1763#if EV_USE_FLOOR
1582# include <math.h> 1764# include <math.h>
1583# define ev_floor(v) floor (v) 1765# define ev_floor(v) floor (v)
1584#else 1766#else
1585 1767
1586#include <float.h> 1768#include <float.h>
1587 1769
1588/* a floor() replacement function, should be independent of ev_tstamp type */ 1770/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline 1771ecb_noinline
1590static ev_tstamp 1772static ev_tstamp
1591ev_floor (ev_tstamp v) 1773ev_floor (ev_tstamp v)
1592{ 1774{
1593 /* the choice of shift factor is not terribly important */ 1775 /* the choice of shift factor is not terribly important */
1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1776#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1777 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1596#else 1778#else
1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1779 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1598#endif 1780#endif
1599 1781
1782 /* special treatment for negative arguments */
1783 if (ecb_expect_false (v < 0.))
1784 {
1785 ev_tstamp f = -ev_floor (-v);
1786
1787 return f - (f == v ? 0 : 1);
1788 }
1789
1600 /* argument too large for an unsigned long? */ 1790 /* argument too large for an unsigned long? then reduce it */
1601 if (expect_false (v >= shift)) 1791 if (ecb_expect_false (v >= shift))
1602 { 1792 {
1603 ev_tstamp f; 1793 ev_tstamp f;
1604 1794
1605 if (v == v - 1.) 1795 if (v == v - 1.)
1606 return v; /* very large number */ 1796 return v; /* very large numbers are assumed to be integer */
1607 1797
1608 f = shift * ev_floor (v * (1. / shift)); 1798 f = shift * ev_floor (v * (1. / shift));
1609 return f + ev_floor (v - f); 1799 return f + ev_floor (v - f);
1610 } 1800 }
1611 1801
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 */ 1802 /* fits into an unsigned long */
1621 return (unsigned long)v; 1803 return (unsigned long)v;
1622} 1804}
1623 1805
1624#endif 1806#endif
… …
1627 1809
1628#ifdef __linux 1810#ifdef __linux
1629# include <sys/utsname.h> 1811# include <sys/utsname.h>
1630#endif 1812#endif
1631 1813
1632noinline ecb_cold 1814ecb_noinline ecb_cold
1633static unsigned int 1815static unsigned int
1634ev_linux_version (void) 1816ev_linux_version (void)
1635{ 1817{
1636#ifdef __linux 1818#ifdef __linux
1637 unsigned int v = 0; 1819 unsigned int v = 0;
… …
1667} 1849}
1668 1850
1669/*****************************************************************************/ 1851/*****************************************************************************/
1670 1852
1671#if EV_AVOID_STDIO 1853#if EV_AVOID_STDIO
1672noinline ecb_cold 1854ecb_noinline ecb_cold
1673static void 1855static void
1674ev_printerr (const char *msg) 1856ev_printerr (const char *msg)
1675{ 1857{
1676 write (STDERR_FILENO, msg, strlen (msg)); 1858 write (STDERR_FILENO, msg, strlen (msg));
1677} 1859}
1678#endif 1860#endif
1679 1861
1680static void (*syserr_cb)(const char *msg) EV_THROW; 1862static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1681 1863
1682ecb_cold 1864ecb_cold
1683void 1865void
1684ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1866ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1685{ 1867{
1686 syserr_cb = cb; 1868 syserr_cb = cb;
1687} 1869}
1688 1870
1689noinline ecb_cold 1871ecb_noinline ecb_cold
1690static void 1872static void
1691ev_syserr (const char *msg) 1873ev_syserr (const char *msg)
1692{ 1874{
1693 if (!msg) 1875 if (!msg)
1694 msg = "(libev) system error"; 1876 msg = "(libev) system error";
… …
1708 abort (); 1890 abort ();
1709 } 1891 }
1710} 1892}
1711 1893
1712static void * 1894static void *
1713ev_realloc_emul (void *ptr, long size) EV_THROW 1895ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1714{ 1896{
1715 /* some systems, notably openbsd and darwin, fail to properly 1897 /* some systems, notably openbsd and darwin, fail to properly
1716 * implement realloc (x, 0) (as required by both ansi c-89 and 1898 * implement realloc (x, 0) (as required by both ansi c-89 and
1717 * the single unix specification, so work around them here. 1899 * the single unix specification, so work around them here.
1718 * recently, also (at least) fedora and debian started breaking it, 1900 * recently, also (at least) fedora and debian started breaking it,
… …
1724 1906
1725 free (ptr); 1907 free (ptr);
1726 return 0; 1908 return 0;
1727} 1909}
1728 1910
1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1911static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1730 1912
1731ecb_cold 1913ecb_cold
1732void 1914void
1733ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1915ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1734{ 1916{
1735 alloc = cb; 1917 alloc = cb;
1736} 1918}
1737 1919
1738inline_speed void * 1920inline_speed void *
… …
1765typedef struct 1947typedef struct
1766{ 1948{
1767 WL head; 1949 WL head;
1768 unsigned char events; /* the events watched for */ 1950 unsigned char events; /* the events watched for */
1769 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1951 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 */ 1952 unsigned char emask; /* some backends store the actual kernel mask in here */
1771 unsigned char unused; 1953 unsigned char eflags; /* flags field for use by backends */
1772#if EV_USE_EPOLL 1954#if EV_USE_EPOLL
1773 unsigned int egen; /* generation counter to counter epoll bugs */ 1955 unsigned int egen; /* generation counter to counter epoll bugs */
1774#endif 1956#endif
1775#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1957#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1776 SOCKET handle; 1958 SOCKET handle;
… …
1830 static struct ev_loop default_loop_struct; 2012 static struct ev_loop default_loop_struct;
1831 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2013 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1832 2014
1833#else 2015#else
1834 2016
1835 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2017 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1836 #define VAR(name,decl) static decl; 2018 #define VAR(name,decl) static decl;
1837 #include "ev_vars.h" 2019 #include "ev_vars.h"
1838 #undef VAR 2020 #undef VAR
1839 2021
1840 static int ev_default_loop_ptr; 2022 static int ev_default_loop_ptr;
1841 2023
1842#endif 2024#endif
1843 2025
1844#if EV_FEATURE_API 2026#if EV_FEATURE_API
1845# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2027# 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) 2028# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1847# define EV_INVOKE_PENDING invoke_cb (EV_A) 2029# define EV_INVOKE_PENDING invoke_cb (EV_A)
1848#else 2030#else
1849# define EV_RELEASE_CB (void)0 2031# define EV_RELEASE_CB (void)0
1850# define EV_ACQUIRE_CB (void)0 2032# define EV_ACQUIRE_CB (void)0
1851# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2033# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1855 2037
1856/*****************************************************************************/ 2038/*****************************************************************************/
1857 2039
1858#ifndef EV_HAVE_EV_TIME 2040#ifndef EV_HAVE_EV_TIME
1859ev_tstamp 2041ev_tstamp
1860ev_time (void) EV_THROW 2042ev_time (void) EV_NOEXCEPT
1861{ 2043{
1862#if EV_USE_REALTIME 2044#if EV_USE_REALTIME
1863 if (expect_true (have_realtime)) 2045 if (ecb_expect_true (have_realtime))
1864 { 2046 {
1865 struct timespec ts; 2047 struct timespec ts;
1866 clock_gettime (CLOCK_REALTIME, &ts); 2048 clock_gettime (CLOCK_REALTIME, &ts);
1867 return ts.tv_sec + ts.tv_nsec * 1e-9; 2049 return EV_TS_GET (ts);
1868 } 2050 }
1869#endif 2051#endif
1870 2052
2053 {
1871 struct timeval tv; 2054 struct timeval tv;
1872 gettimeofday (&tv, 0); 2055 gettimeofday (&tv, 0);
1873 return tv.tv_sec + tv.tv_usec * 1e-6; 2056 return EV_TV_GET (tv);
2057 }
1874} 2058}
1875#endif 2059#endif
1876 2060
1877inline_size ev_tstamp 2061inline_size ev_tstamp
1878get_clock (void) 2062get_clock (void)
1879{ 2063{
1880#if EV_USE_MONOTONIC 2064#if EV_USE_MONOTONIC
1881 if (expect_true (have_monotonic)) 2065 if (ecb_expect_true (have_monotonic))
1882 { 2066 {
1883 struct timespec ts; 2067 struct timespec ts;
1884 clock_gettime (CLOCK_MONOTONIC, &ts); 2068 clock_gettime (CLOCK_MONOTONIC, &ts);
1885 return ts.tv_sec + ts.tv_nsec * 1e-9; 2069 return EV_TS_GET (ts);
1886 } 2070 }
1887#endif 2071#endif
1888 2072
1889 return ev_time (); 2073 return ev_time ();
1890} 2074}
1891 2075
1892#if EV_MULTIPLICITY 2076#if EV_MULTIPLICITY
1893ev_tstamp 2077ev_tstamp
1894ev_now (EV_P) EV_THROW 2078ev_now (EV_P) EV_NOEXCEPT
1895{ 2079{
1896 return ev_rt_now; 2080 return ev_rt_now;
1897} 2081}
1898#endif 2082#endif
1899 2083
1900void 2084void
1901ev_sleep (ev_tstamp delay) EV_THROW 2085ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1902{ 2086{
1903 if (delay > 0.) 2087 if (delay > EV_TS_CONST (0.))
1904 { 2088 {
1905#if EV_USE_NANOSLEEP 2089#if EV_USE_NANOSLEEP
1906 struct timespec ts; 2090 struct timespec ts;
1907 2091
1908 EV_TS_SET (ts, delay); 2092 EV_TS_SET (ts, delay);
1909 nanosleep (&ts, 0); 2093 nanosleep (&ts, 0);
1910#elif defined _WIN32 2094#elif defined _WIN32
2095 /* maybe this should round up, as ms is very low resolution */
2096 /* compared to select (µs) or nanosleep (ns) */
1911 Sleep ((unsigned long)(delay * 1e3)); 2097 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1912#else 2098#else
1913 struct timeval tv; 2099 struct timeval tv;
1914 2100
1915 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2101 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1916 /* something not guaranteed by newer posix versions, but guaranteed */ 2102 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1946 } 2132 }
1947 2133
1948 return ncur; 2134 return ncur;
1949} 2135}
1950 2136
1951noinline ecb_cold 2137ecb_noinline ecb_cold
1952static void * 2138static void *
1953array_realloc (int elem, void *base, int *cur, int cnt) 2139array_realloc (int elem, void *base, int *cur, int cnt)
1954{ 2140{
1955 *cur = array_nextsize (elem, *cur, cnt); 2141 *cur = array_nextsize (elem, *cur, cnt);
1956 return ev_realloc (base, elem * *cur); 2142 return ev_realloc (base, elem * *cur);
1957} 2143}
1958 2144
2145#define array_needsize_noinit(base,offset,count)
2146
1959#define array_init_zero(base,count) \ 2147#define array_needsize_zerofill(base,offset,count) \
1960 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2148 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1961 2149
1962#define array_needsize(type,base,cur,cnt,init) \ 2150#define array_needsize(type,base,cur,cnt,init) \
1963 if (expect_false ((cnt) > (cur))) \ 2151 if (ecb_expect_false ((cnt) > (cur))) \
1964 { \ 2152 { \
1965 ecb_unused int ocur_ = (cur); \ 2153 ecb_unused int ocur_ = (cur); \
1966 (base) = (type *)array_realloc \ 2154 (base) = (type *)array_realloc \
1967 (sizeof (type), (base), &(cur), (cnt)); \ 2155 (sizeof (type), (base), &(cur), (cnt)); \
1968 init ((base) + (ocur_), (cur) - ocur_); \ 2156 init ((base), ocur_, ((cur) - ocur_)); \
1969 } 2157 }
1970 2158
1971#if 0 2159#if 0
1972#define array_slim(type,stem) \ 2160#define array_slim(type,stem) \
1973 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2161 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 2170 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1983 2171
1984/*****************************************************************************/ 2172/*****************************************************************************/
1985 2173
1986/* dummy callback for pending events */ 2174/* dummy callback for pending events */
1987noinline 2175ecb_noinline
1988static void 2176static void
1989pendingcb (EV_P_ ev_prepare *w, int revents) 2177pendingcb (EV_P_ ev_prepare *w, int revents)
1990{ 2178{
1991} 2179}
1992 2180
1993noinline 2181ecb_noinline
1994void 2182void
1995ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2183ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1996{ 2184{
1997 W w_ = (W)w; 2185 W w_ = (W)w;
1998 int pri = ABSPRI (w_); 2186 int pri = ABSPRI (w_);
1999 2187
2000 if (expect_false (w_->pending)) 2188 if (ecb_expect_false (w_->pending))
2001 pendings [pri][w_->pending - 1].events |= revents; 2189 pendings [pri][w_->pending - 1].events |= revents;
2002 else 2190 else
2003 { 2191 {
2004 w_->pending = ++pendingcnt [pri]; 2192 w_->pending = ++pendingcnt [pri];
2005 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2193 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2006 pendings [pri][w_->pending - 1].w = w_; 2194 pendings [pri][w_->pending - 1].w = w_;
2007 pendings [pri][w_->pending - 1].events = revents; 2195 pendings [pri][w_->pending - 1].events = revents;
2008 } 2196 }
2009 2197
2010 pendingpri = NUMPRI - 1; 2198 pendingpri = NUMPRI - 1;
2011} 2199}
2012 2200
2013inline_speed void 2201inline_speed void
2014feed_reverse (EV_P_ W w) 2202feed_reverse (EV_P_ W w)
2015{ 2203{
2016 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2204 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2017 rfeeds [rfeedcnt++] = w; 2205 rfeeds [rfeedcnt++] = w;
2018} 2206}
2019 2207
2020inline_size void 2208inline_size void
2021feed_reverse_done (EV_P_ int revents) 2209feed_reverse_done (EV_P_ int revents)
… …
2056inline_speed void 2244inline_speed void
2057fd_event (EV_P_ int fd, int revents) 2245fd_event (EV_P_ int fd, int revents)
2058{ 2246{
2059 ANFD *anfd = anfds + fd; 2247 ANFD *anfd = anfds + fd;
2060 2248
2061 if (expect_true (!anfd->reify)) 2249 if (ecb_expect_true (!anfd->reify))
2062 fd_event_nocheck (EV_A_ fd, revents); 2250 fd_event_nocheck (EV_A_ fd, revents);
2063} 2251}
2064 2252
2065void 2253void
2066ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2254ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2067{ 2255{
2068 if (fd >= 0 && fd < anfdmax) 2256 if (fd >= 0 && fd < anfdmax)
2069 fd_event_nocheck (EV_A_ fd, revents); 2257 fd_event_nocheck (EV_A_ fd, revents);
2070} 2258}
2071 2259
… …
2074inline_size void 2262inline_size void
2075fd_reify (EV_P) 2263fd_reify (EV_P)
2076{ 2264{
2077 int i; 2265 int i;
2078 2266
2267 /* most backends do not modify the fdchanges list in backend_modfiy.
2268 * except io_uring, which has fixed-size buffers which might force us
2269 * to handle events in backend_modify, causing fdchangesd to be amended,
2270 * which could result in an endless loop.
2271 * to avoid this, we do not dynamically handle fds that were added
2272 * during fd_reify. that menas thast for those backends, fdchangecnt
2273 * might be non-zero during poll, which must cause them to not block.
2274 * to not put too much of a burden on other backends, this detail
2275 * needs to be handled in the backend.
2276 */
2277 int changecnt = fdchangecnt;
2278
2079#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2279#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2080 for (i = 0; i < fdchangecnt; ++i) 2280 for (i = 0; i < changecnt; ++i)
2081 { 2281 {
2082 int fd = fdchanges [i]; 2282 int fd = fdchanges [i];
2083 ANFD *anfd = anfds + fd; 2283 ANFD *anfd = anfds + fd;
2084 2284
2085 if (anfd->reify & EV__IOFDSET && anfd->head) 2285 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2099 } 2299 }
2100 } 2300 }
2101 } 2301 }
2102#endif 2302#endif
2103 2303
2104 for (i = 0; i < fdchangecnt; ++i) 2304 for (i = 0; i < changecnt; ++i)
2105 { 2305 {
2106 int fd = fdchanges [i]; 2306 int fd = fdchanges [i];
2107 ANFD *anfd = anfds + fd; 2307 ANFD *anfd = anfds + fd;
2108 ev_io *w; 2308 ev_io *w;
2109 2309
2110 unsigned char o_events = anfd->events; 2310 unsigned char o_events = anfd->events;
2111 unsigned char o_reify = anfd->reify; 2311 unsigned char o_reify = anfd->reify;
2112 2312
2113 anfd->reify = 0; 2313 anfd->reify = 0;
2114 2314
2115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2315 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2116 { 2316 {
2117 anfd->events = 0; 2317 anfd->events = 0;
2118 2318
2119 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2319 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2120 anfd->events |= (unsigned char)w->events; 2320 anfd->events |= (unsigned char)w->events;
… …
2125 2325
2126 if (o_reify & EV__IOFDSET) 2326 if (o_reify & EV__IOFDSET)
2127 backend_modify (EV_A_ fd, o_events, anfd->events); 2327 backend_modify (EV_A_ fd, o_events, anfd->events);
2128 } 2328 }
2129 2329
2330 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2331 * this is a rare case (see beginning comment in this function), so we copy them to the
2332 * front and hope the backend handles this case.
2333 */
2334 if (ecb_expect_false (fdchangecnt != changecnt))
2335 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2336
2130 fdchangecnt = 0; 2337 fdchangecnt -= changecnt;
2131} 2338}
2132 2339
2133/* something about the given fd changed */ 2340/* something about the given fd changed */
2134inline_size 2341inline_size
2135void 2342void
2136fd_change (EV_P_ int fd, int flags) 2343fd_change (EV_P_ int fd, int flags)
2137{ 2344{
2138 unsigned char reify = anfds [fd].reify; 2345 unsigned char reify = anfds [fd].reify;
2139 anfds [fd].reify |= flags; 2346 anfds [fd].reify |= flags;
2140 2347
2141 if (expect_true (!reify)) 2348 if (ecb_expect_true (!reify))
2142 { 2349 {
2143 ++fdchangecnt; 2350 ++fdchangecnt;
2144 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2351 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2145 fdchanges [fdchangecnt - 1] = fd; 2352 fdchanges [fdchangecnt - 1] = fd;
2146 } 2353 }
2147} 2354}
2148 2355
2149/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2356/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
… …
2169 return fcntl (fd, F_GETFD) != -1; 2376 return fcntl (fd, F_GETFD) != -1;
2170#endif 2377#endif
2171} 2378}
2172 2379
2173/* called on EBADF to verify fds */ 2380/* called on EBADF to verify fds */
2174noinline ecb_cold 2381ecb_noinline ecb_cold
2175static void 2382static void
2176fd_ebadf (EV_P) 2383fd_ebadf (EV_P)
2177{ 2384{
2178 int fd; 2385 int fd;
2179 2386
… …
2182 if (!fd_valid (fd) && errno == EBADF) 2389 if (!fd_valid (fd) && errno == EBADF)
2183 fd_kill (EV_A_ fd); 2390 fd_kill (EV_A_ fd);
2184} 2391}
2185 2392
2186/* called on ENOMEM in select/poll to kill some fds and retry */ 2393/* called on ENOMEM in select/poll to kill some fds and retry */
2187noinline ecb_cold 2394ecb_noinline ecb_cold
2188static void 2395static void
2189fd_enomem (EV_P) 2396fd_enomem (EV_P)
2190{ 2397{
2191 int fd; 2398 int fd;
2192 2399
… …
2197 break; 2404 break;
2198 } 2405 }
2199} 2406}
2200 2407
2201/* usually called after fork if backend needs to re-arm all fds from scratch */ 2408/* usually called after fork if backend needs to re-arm all fds from scratch */
2202noinline 2409ecb_noinline
2203static void 2410static void
2204fd_rearm_all (EV_P) 2411fd_rearm_all (EV_P)
2205{ 2412{
2206 int fd; 2413 int fd;
2207 2414
… …
2261 ev_tstamp minat; 2468 ev_tstamp minat;
2262 ANHE *minpos; 2469 ANHE *minpos;
2263 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2470 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2264 2471
2265 /* find minimum child */ 2472 /* find minimum child */
2266 if (expect_true (pos + DHEAP - 1 < E)) 2473 if (ecb_expect_true (pos + DHEAP - 1 < E))
2267 { 2474 {
2268 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2475 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2269 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2476 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)); 2477 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)); 2478 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2272 } 2479 }
2273 else if (pos < E) 2480 else if (pos < E)
2274 { 2481 {
2275 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2482 /* 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)); 2483 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)); 2484 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)); 2485 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2279 } 2486 }
2280 else 2487 else
2281 break; 2488 break;
2282 2489
2283 if (ANHE_at (he) <= minat) 2490 if (ANHE_at (he) <= minat)
… …
2291 2498
2292 heap [k] = he; 2499 heap [k] = he;
2293 ev_active (ANHE_w (he)) = k; 2500 ev_active (ANHE_w (he)) = k;
2294} 2501}
2295 2502
2296#else /* 4HEAP */ 2503#else /* not 4HEAP */
2297 2504
2298#define HEAP0 1 2505#define HEAP0 1
2299#define HPARENT(k) ((k) >> 1) 2506#define HPARENT(k) ((k) >> 1)
2300#define UPHEAP_DONE(p,k) (!(p)) 2507#define UPHEAP_DONE(p,k) (!(p))
2301 2508
… …
2389 2596
2390/*****************************************************************************/ 2597/*****************************************************************************/
2391 2598
2392#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2599#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2393 2600
2394noinline ecb_cold 2601ecb_noinline ecb_cold
2395static void 2602static void
2396evpipe_init (EV_P) 2603evpipe_init (EV_P)
2397{ 2604{
2398 if (!ev_is_active (&pipe_w)) 2605 if (!ev_is_active (&pipe_w))
2399 { 2606 {
… …
2440inline_speed void 2647inline_speed void
2441evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2648evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2442{ 2649{
2443 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2650 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2444 2651
2445 if (expect_true (*flag)) 2652 if (ecb_expect_true (*flag))
2446 return; 2653 return;
2447 2654
2448 *flag = 1; 2655 *flag = 1;
2449 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2656 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2450 2657
… …
2471#endif 2678#endif
2472 { 2679 {
2473#ifdef _WIN32 2680#ifdef _WIN32
2474 WSABUF buf; 2681 WSABUF buf;
2475 DWORD sent; 2682 DWORD sent;
2476 buf.buf = &buf; 2683 buf.buf = (char *)&buf;
2477 buf.len = 1; 2684 buf.len = 1;
2478 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2685 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2479#else 2686#else
2480 write (evpipe [1], &(evpipe [1]), 1); 2687 write (evpipe [1], &(evpipe [1]), 1);
2481#endif 2688#endif
… …
2527 sig_pending = 0; 2734 sig_pending = 0;
2528 2735
2529 ECB_MEMORY_FENCE; 2736 ECB_MEMORY_FENCE;
2530 2737
2531 for (i = EV_NSIG - 1; i--; ) 2738 for (i = EV_NSIG - 1; i--; )
2532 if (expect_false (signals [i].pending)) 2739 if (ecb_expect_false (signals [i].pending))
2533 ev_feed_signal_event (EV_A_ i + 1); 2740 ev_feed_signal_event (EV_A_ i + 1);
2534 } 2741 }
2535#endif 2742#endif
2536 2743
2537#if EV_ASYNC_ENABLE 2744#if EV_ASYNC_ENABLE
… …
2553} 2760}
2554 2761
2555/*****************************************************************************/ 2762/*****************************************************************************/
2556 2763
2557void 2764void
2558ev_feed_signal (int signum) EV_THROW 2765ev_feed_signal (int signum) EV_NOEXCEPT
2559{ 2766{
2560#if EV_MULTIPLICITY 2767#if EV_MULTIPLICITY
2561 EV_P; 2768 EV_P;
2562 ECB_MEMORY_FENCE_ACQUIRE; 2769 ECB_MEMORY_FENCE_ACQUIRE;
2563 EV_A = signals [signum - 1].loop; 2770 EV_A = signals [signum - 1].loop;
… …
2578#endif 2785#endif
2579 2786
2580 ev_feed_signal (signum); 2787 ev_feed_signal (signum);
2581} 2788}
2582 2789
2583noinline 2790ecb_noinline
2584void 2791void
2585ev_feed_signal_event (EV_P_ int signum) EV_THROW 2792ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2586{ 2793{
2587 WL w; 2794 WL w;
2588 2795
2589 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2796 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2590 return; 2797 return;
2591 2798
2592 --signum; 2799 --signum;
2593 2800
2594#if EV_MULTIPLICITY 2801#if EV_MULTIPLICITY
2595 /* it is permissible to try to feed a signal to the wrong loop */ 2802 /* 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 */ 2803 /* or, likely more useful, feeding a signal nobody is waiting for */
2597 2804
2598 if (expect_false (signals [signum].loop != EV_A)) 2805 if (ecb_expect_false (signals [signum].loop != EV_A))
2599 return; 2806 return;
2600#endif 2807#endif
2601 2808
2602 signals [signum].pending = 0; 2809 signals [signum].pending = 0;
2603 ECB_MEMORY_FENCE_RELEASE; 2810 ECB_MEMORY_FENCE_RELEASE;
… …
2687 2894
2688#endif 2895#endif
2689 2896
2690/*****************************************************************************/ 2897/*****************************************************************************/
2691 2898
2899#if EV_USE_TIMERFD
2900
2901static void periodics_reschedule (EV_P);
2902
2903static void
2904timerfdcb (EV_P_ ev_io *iow, int revents)
2905{
2906 struct itimerspec its = { 0 };
2907
2908 /* since we can't easily come zup with a (portable) maximum value of time_t,
2909 * we wake up once per month, which hopefully is rare enough to not
2910 * be a problem. */
2911 its.it_value.tv_sec = ev_rt_now + 86400 * 30;
2912 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
2913
2914 ev_rt_now = ev_time ();
2915 /* periodics_reschedule only needs ev_rt_now */
2916 /* but maybe in the future we want the full treatment. */
2917 /*
2918 now_floor = EV_TS_CONST (0.);
2919 time_update (EV_A_ EV_TSTAMP_HUGE);
2920 */
2921 periodics_reschedule (EV_A);
2922}
2923
2924ecb_noinline ecb_cold
2925static void
2926evtimerfd_init (EV_P)
2927{
2928 if (!ev_is_active (&timerfd_w))
2929 {
2930 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
2931
2932 if (timerfd >= 0)
2933 {
2934 fd_intern (timerfd); /* just to be sure */
2935
2936 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
2937 ev_set_priority (&timerfd_w, EV_MINPRI);
2938 ev_io_start (EV_A_ &timerfd_w);
2939 ev_unref (EV_A); /* watcher should not keep loop alive */
2940
2941 /* (re-) arm timer */
2942 timerfdcb (EV_A_ 0, 0);
2943 }
2944 }
2945}
2946
2947#endif
2948
2949/*****************************************************************************/
2950
2692#if EV_USE_IOCP 2951#if EV_USE_IOCP
2693# include "ev_iocp.c" 2952# include "ev_iocp.c"
2694#endif 2953#endif
2695#if EV_USE_PORT 2954#if EV_USE_PORT
2696# include "ev_port.c" 2955# include "ev_port.c"
… …
2699# include "ev_kqueue.c" 2958# include "ev_kqueue.c"
2700#endif 2959#endif
2701#if EV_USE_EPOLL 2960#if EV_USE_EPOLL
2702# include "ev_epoll.c" 2961# include "ev_epoll.c"
2703#endif 2962#endif
2963#if EV_USE_LINUXAIO
2964# include "ev_linuxaio.c"
2965#endif
2966#if EV_USE_IOURING
2967# include "ev_iouring.c"
2968#endif
2704#if EV_USE_POLL 2969#if EV_USE_POLL
2705# include "ev_poll.c" 2970# include "ev_poll.c"
2706#endif 2971#endif
2707#if EV_USE_SELECT 2972#if EV_USE_SELECT
2708# include "ev_select.c" 2973# include "ev_select.c"
2709#endif 2974#endif
2710 2975
2711ecb_cold int 2976ecb_cold int
2712ev_version_major (void) EV_THROW 2977ev_version_major (void) EV_NOEXCEPT
2713{ 2978{
2714 return EV_VERSION_MAJOR; 2979 return EV_VERSION_MAJOR;
2715} 2980}
2716 2981
2717ecb_cold int 2982ecb_cold int
2718ev_version_minor (void) EV_THROW 2983ev_version_minor (void) EV_NOEXCEPT
2719{ 2984{
2720 return EV_VERSION_MINOR; 2985 return EV_VERSION_MINOR;
2721} 2986}
2722 2987
2723/* return true if we are running with elevated privileges and should ignore env variables */ 2988/* return true if we are running with elevated privileges and should ignore env variables */
… …
2732#endif 2997#endif
2733} 2998}
2734 2999
2735ecb_cold 3000ecb_cold
2736unsigned int 3001unsigned int
2737ev_supported_backends (void) EV_THROW 3002ev_supported_backends (void) EV_NOEXCEPT
2738{ 3003{
2739 unsigned int flags = 0; 3004 unsigned int flags = 0;
2740 3005
2741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3006 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2742 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3007 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2743 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3008 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2744 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3009 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3010 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2746 3011 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3012 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3013
2747 return flags; 3014 return flags;
2748} 3015}
2749 3016
2750ecb_cold 3017ecb_cold
2751unsigned int 3018unsigned int
2752ev_recommended_backends (void) EV_THROW 3019ev_recommended_backends (void) EV_NOEXCEPT
2753{ 3020{
2754 unsigned int flags = ev_supported_backends (); 3021 unsigned int flags = ev_supported_backends ();
2755 3022
2756#ifndef __NetBSD__ 3023#ifndef __NetBSD__
2757 /* kqueue is borked on everything but netbsd apparently */ 3024 /* kqueue is borked on everything but netbsd apparently */
… …
2765#endif 3032#endif
2766#ifdef __FreeBSD__ 3033#ifdef __FreeBSD__
2767 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3034 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2768#endif 3035#endif
2769 3036
3037 /* TODO: linuxaio is very experimental */
3038#if !EV_RECOMMEND_LINUXAIO
3039 flags &= ~EVBACKEND_LINUXAIO;
3040#endif
3041 /* TODO: linuxaio is super experimental */
3042#if !EV_RECOMMEND_IOURING
3043 flags &= ~EVBACKEND_IOURING;
3044#endif
3045
2770 return flags; 3046 return flags;
2771} 3047}
2772 3048
2773ecb_cold 3049ecb_cold
2774unsigned int 3050unsigned int
2775ev_embeddable_backends (void) EV_THROW 3051ev_embeddable_backends (void) EV_NOEXCEPT
2776{ 3052{
2777 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3053 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2778 3054
2779 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3055 /* 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 */ 3056 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2781 flags &= ~EVBACKEND_EPOLL; 3057 flags &= ~EVBACKEND_EPOLL;
2782 3058
3059 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3060
3061 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
3062 * because our backend_fd is the epoll fd we need as fallback.
3063 * if the kernel ever is fixed, this might change...
3064 */
3065
2783 return flags; 3066 return flags;
2784} 3067}
2785 3068
2786unsigned int 3069unsigned int
2787ev_backend (EV_P) EV_THROW 3070ev_backend (EV_P) EV_NOEXCEPT
2788{ 3071{
2789 return backend; 3072 return backend;
2790} 3073}
2791 3074
2792#if EV_FEATURE_API 3075#if EV_FEATURE_API
2793unsigned int 3076unsigned int
2794ev_iteration (EV_P) EV_THROW 3077ev_iteration (EV_P) EV_NOEXCEPT
2795{ 3078{
2796 return loop_count; 3079 return loop_count;
2797} 3080}
2798 3081
2799unsigned int 3082unsigned int
2800ev_depth (EV_P) EV_THROW 3083ev_depth (EV_P) EV_NOEXCEPT
2801{ 3084{
2802 return loop_depth; 3085 return loop_depth;
2803} 3086}
2804 3087
2805void 3088void
2806ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3089ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2807{ 3090{
2808 io_blocktime = interval; 3091 io_blocktime = interval;
2809} 3092}
2810 3093
2811void 3094void
2812ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3095ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2813{ 3096{
2814 timeout_blocktime = interval; 3097 timeout_blocktime = interval;
2815} 3098}
2816 3099
2817void 3100void
2818ev_set_userdata (EV_P_ void *data) EV_THROW 3101ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2819{ 3102{
2820 userdata = data; 3103 userdata = data;
2821} 3104}
2822 3105
2823void * 3106void *
2824ev_userdata (EV_P) EV_THROW 3107ev_userdata (EV_P) EV_NOEXCEPT
2825{ 3108{
2826 return userdata; 3109 return userdata;
2827} 3110}
2828 3111
2829void 3112void
2830ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3113ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2831{ 3114{
2832 invoke_cb = invoke_pending_cb; 3115 invoke_cb = invoke_pending_cb;
2833} 3116}
2834 3117
2835void 3118void
2836ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3119ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2837{ 3120{
2838 release_cb = release; 3121 release_cb = release;
2839 acquire_cb = acquire; 3122 acquire_cb = acquire;
2840} 3123}
2841#endif 3124#endif
2842 3125
2843/* initialise a loop structure, must be zero-initialised */ 3126/* initialise a loop structure, must be zero-initialised */
2844noinline ecb_cold 3127ecb_noinline ecb_cold
2845static void 3128static void
2846loop_init (EV_P_ unsigned int flags) EV_THROW 3129loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2847{ 3130{
2848 if (!backend) 3131 if (!backend)
2849 { 3132 {
2850 origflags = flags; 3133 origflags = flags;
2851 3134
… …
2904 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3187 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2905#endif 3188#endif
2906#if EV_USE_SIGNALFD 3189#if EV_USE_SIGNALFD
2907 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3190 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2908#endif 3191#endif
3192#if EV_USE_TIMERFD
3193 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3194#endif
2909 3195
2910 if (!(flags & EVBACKEND_MASK)) 3196 if (!(flags & EVBACKEND_MASK))
2911 flags |= ev_recommended_backends (); 3197 flags |= ev_recommended_backends ();
2912 3198
2913#if EV_USE_IOCP 3199#if EV_USE_IOCP
2914 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3200 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2915#endif 3201#endif
2916#if EV_USE_PORT 3202#if EV_USE_PORT
2917 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3203 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2918#endif 3204#endif
2919#if EV_USE_KQUEUE 3205#if EV_USE_KQUEUE
2920 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3206 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3207#endif
3208#if EV_USE_IOURING
3209 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3210#endif
3211#if EV_USE_LINUXAIO
3212 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2921#endif 3213#endif
2922#if EV_USE_EPOLL 3214#if EV_USE_EPOLL
2923 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3215 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2924#endif 3216#endif
2925#if EV_USE_POLL 3217#if EV_USE_POLL
2926 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3218 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2927#endif 3219#endif
2928#if EV_USE_SELECT 3220#if EV_USE_SELECT
2929 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3221 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2930#endif 3222#endif
2931 3223
2932 ev_prepare_init (&pending_w, pendingcb); 3224 ev_prepare_init (&pending_w, pendingcb);
2933 3225
2934#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3226#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2951 return; 3243 return;
2952#endif 3244#endif
2953 3245
2954#if EV_CLEANUP_ENABLE 3246#if EV_CLEANUP_ENABLE
2955 /* queue cleanup watchers (and execute them) */ 3247 /* queue cleanup watchers (and execute them) */
2956 if (expect_false (cleanupcnt)) 3248 if (ecb_expect_false (cleanupcnt))
2957 { 3249 {
2958 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3250 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2959 EV_INVOKE_PENDING; 3251 EV_INVOKE_PENDING;
2960 } 3252 }
2961#endif 3253#endif
… …
2980#if EV_USE_SIGNALFD 3272#if EV_USE_SIGNALFD
2981 if (ev_is_active (&sigfd_w)) 3273 if (ev_is_active (&sigfd_w))
2982 close (sigfd); 3274 close (sigfd);
2983#endif 3275#endif
2984 3276
3277#if EV_USE_TIMERFD
3278 if (ev_is_active (&timerfd_w))
3279 close (timerfd);
3280#endif
3281
2985#if EV_USE_INOTIFY 3282#if EV_USE_INOTIFY
2986 if (fs_fd >= 0) 3283 if (fs_fd >= 0)
2987 close (fs_fd); 3284 close (fs_fd);
2988#endif 3285#endif
2989 3286
2990 if (backend_fd >= 0) 3287 if (backend_fd >= 0)
2991 close (backend_fd); 3288 close (backend_fd);
2992 3289
2993#if EV_USE_IOCP 3290#if EV_USE_IOCP
2994 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3291 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2995#endif 3292#endif
2996#if EV_USE_PORT 3293#if EV_USE_PORT
2997 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3294 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2998#endif 3295#endif
2999#if EV_USE_KQUEUE 3296#if EV_USE_KQUEUE
3000 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3297 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3298#endif
3299#if EV_USE_IOURING
3300 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3301#endif
3302#if EV_USE_LINUXAIO
3303 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3001#endif 3304#endif
3002#if EV_USE_EPOLL 3305#if EV_USE_EPOLL
3003 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3306 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3004#endif 3307#endif
3005#if EV_USE_POLL 3308#if EV_USE_POLL
3006 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3309 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3007#endif 3310#endif
3008#if EV_USE_SELECT 3311#if EV_USE_SELECT
3009 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3312 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3010#endif 3313#endif
3011 3314
3012 for (i = NUMPRI; i--; ) 3315 for (i = NUMPRI; i--; )
3013 { 3316 {
3014 array_free (pending, [i]); 3317 array_free (pending, [i]);
… …
3056 3359
3057inline_size void 3360inline_size void
3058loop_fork (EV_P) 3361loop_fork (EV_P)
3059{ 3362{
3060#if EV_USE_PORT 3363#if EV_USE_PORT
3061 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3364 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3062#endif 3365#endif
3063#if EV_USE_KQUEUE 3366#if EV_USE_KQUEUE
3064 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3367 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3368#endif
3369#if EV_USE_IOURING
3370 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3371#endif
3372#if EV_USE_LINUXAIO
3373 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3065#endif 3374#endif
3066#if EV_USE_EPOLL 3375#if EV_USE_EPOLL
3067 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3376 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3068#endif 3377#endif
3069#if EV_USE_INOTIFY 3378#if EV_USE_INOTIFY
3070 infy_fork (EV_A); 3379 infy_fork (EV_A);
3071#endif 3380#endif
3072 3381
3382 if (postfork != 2)
3383 {
3384 #if EV_USE_SIGNALFD
3385 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3386 #endif
3387
3388 #if EV_USE_TIMERFD
3389 if (ev_is_active (&timerfd_w))
3390 {
3391 ev_ref (EV_A);
3392 ev_io_stop (EV_A_ &timerfd_w);
3393
3394 close (timerfd);
3395 timerfd = -2;
3396
3397 evtimerfd_init (EV_A);
3398 /* reschedule periodics, in case we missed something */
3399 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3400 }
3401 #endif
3402
3073#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3403 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3074 if (ev_is_active (&pipe_w) && postfork != 2) 3404 if (ev_is_active (&pipe_w))
3075 { 3405 {
3076 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3406 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3077 3407
3078 ev_ref (EV_A); 3408 ev_ref (EV_A);
3079 ev_io_stop (EV_A_ &pipe_w); 3409 ev_io_stop (EV_A_ &pipe_w);
3080 3410
3081 if (evpipe [0] >= 0) 3411 if (evpipe [0] >= 0)
3082 EV_WIN32_CLOSE_FD (evpipe [0]); 3412 EV_WIN32_CLOSE_FD (evpipe [0]);
3083 3413
3084 evpipe_init (EV_A); 3414 evpipe_init (EV_A);
3085 /* iterate over everything, in case we missed something before */ 3415 /* iterate over everything, in case we missed something before */
3086 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3416 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3417 }
3418 #endif
3087 } 3419 }
3088#endif
3089 3420
3090 postfork = 0; 3421 postfork = 0;
3091} 3422}
3092 3423
3093#if EV_MULTIPLICITY 3424#if EV_MULTIPLICITY
3094 3425
3095ecb_cold 3426ecb_cold
3096struct ev_loop * 3427struct ev_loop *
3097ev_loop_new (unsigned int flags) EV_THROW 3428ev_loop_new (unsigned int flags) EV_NOEXCEPT
3098{ 3429{
3099 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3430 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3100 3431
3101 memset (EV_A, 0, sizeof (struct ev_loop)); 3432 memset (EV_A, 0, sizeof (struct ev_loop));
3102 loop_init (EV_A_ flags); 3433 loop_init (EV_A_ flags);
… …
3109} 3440}
3110 3441
3111#endif /* multiplicity */ 3442#endif /* multiplicity */
3112 3443
3113#if EV_VERIFY 3444#if EV_VERIFY
3114noinline ecb_cold 3445ecb_noinline ecb_cold
3115static void 3446static void
3116verify_watcher (EV_P_ W w) 3447verify_watcher (EV_P_ W w)
3117{ 3448{
3118 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3449 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3119 3450
3120 if (w->pending) 3451 if (w->pending)
3121 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3452 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3122} 3453}
3123 3454
3124noinline ecb_cold 3455ecb_noinline ecb_cold
3125static void 3456static void
3126verify_heap (EV_P_ ANHE *heap, int N) 3457verify_heap (EV_P_ ANHE *heap, int N)
3127{ 3458{
3128 int i; 3459 int i;
3129 3460
… …
3135 3466
3136 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3467 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3137 } 3468 }
3138} 3469}
3139 3470
3140noinline ecb_cold 3471ecb_noinline ecb_cold
3141static void 3472static void
3142array_verify (EV_P_ W *ws, int cnt) 3473array_verify (EV_P_ W *ws, int cnt)
3143{ 3474{
3144 while (cnt--) 3475 while (cnt--)
3145 { 3476 {
… …
3149} 3480}
3150#endif 3481#endif
3151 3482
3152#if EV_FEATURE_API 3483#if EV_FEATURE_API
3153void ecb_cold 3484void ecb_cold
3154ev_verify (EV_P) EV_THROW 3485ev_verify (EV_P) EV_NOEXCEPT
3155{ 3486{
3156#if EV_VERIFY 3487#if EV_VERIFY
3157 int i; 3488 int i;
3158 WL w, w2; 3489 WL w, w2;
3159 3490
… …
3240ecb_cold 3571ecb_cold
3241struct ev_loop * 3572struct ev_loop *
3242#else 3573#else
3243int 3574int
3244#endif 3575#endif
3245ev_default_loop (unsigned int flags) EV_THROW 3576ev_default_loop (unsigned int flags) EV_NOEXCEPT
3246{ 3577{
3247 if (!ev_default_loop_ptr) 3578 if (!ev_default_loop_ptr)
3248 { 3579 {
3249#if EV_MULTIPLICITY 3580#if EV_MULTIPLICITY
3250 EV_P = ev_default_loop_ptr = &default_loop_struct; 3581 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3269 3600
3270 return ev_default_loop_ptr; 3601 return ev_default_loop_ptr;
3271} 3602}
3272 3603
3273void 3604void
3274ev_loop_fork (EV_P) EV_THROW 3605ev_loop_fork (EV_P) EV_NOEXCEPT
3275{ 3606{
3276 postfork = 1; 3607 postfork = 1;
3277} 3608}
3278 3609
3279/*****************************************************************************/ 3610/*****************************************************************************/
… …
3283{ 3614{
3284 EV_CB_INVOKE ((W)w, revents); 3615 EV_CB_INVOKE ((W)w, revents);
3285} 3616}
3286 3617
3287unsigned int 3618unsigned int
3288ev_pending_count (EV_P) EV_THROW 3619ev_pending_count (EV_P) EV_NOEXCEPT
3289{ 3620{
3290 int pri; 3621 int pri;
3291 unsigned int count = 0; 3622 unsigned int count = 0;
3292 3623
3293 for (pri = NUMPRI; pri--; ) 3624 for (pri = NUMPRI; pri--; )
3294 count += pendingcnt [pri]; 3625 count += pendingcnt [pri];
3295 3626
3296 return count; 3627 return count;
3297} 3628}
3298 3629
3299noinline 3630ecb_noinline
3300void 3631void
3301ev_invoke_pending (EV_P) 3632ev_invoke_pending (EV_P)
3302{ 3633{
3303 pendingpri = NUMPRI; 3634 pendingpri = NUMPRI;
3304 3635
3305 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3636 do
3306 { 3637 {
3307 --pendingpri; 3638 --pendingpri;
3308 3639
3640 /* pendingpri possibly gets modified in the inner loop */
3309 while (pendingcnt [pendingpri]) 3641 while (pendingcnt [pendingpri])
3310 { 3642 {
3311 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3643 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3312 3644
3313 p->w->pending = 0; 3645 p->w->pending = 0;
3314 EV_CB_INVOKE (p->w, p->events); 3646 EV_CB_INVOKE (p->w, p->events);
3315 EV_FREQUENT_CHECK; 3647 EV_FREQUENT_CHECK;
3316 } 3648 }
3317 } 3649 }
3650 while (pendingpri);
3318} 3651}
3319 3652
3320#if EV_IDLE_ENABLE 3653#if EV_IDLE_ENABLE
3321/* make idle watchers pending. this handles the "call-idle */ 3654/* make idle watchers pending. this handles the "call-idle */
3322/* only when higher priorities are idle" logic */ 3655/* only when higher priorities are idle" logic */
3323inline_size void 3656inline_size void
3324idle_reify (EV_P) 3657idle_reify (EV_P)
3325{ 3658{
3326 if (expect_false (idleall)) 3659 if (ecb_expect_false (idleall))
3327 { 3660 {
3328 int pri; 3661 int pri;
3329 3662
3330 for (pri = NUMPRI; pri--; ) 3663 for (pri = NUMPRI; pri--; )
3331 { 3664 {
… …
3361 { 3694 {
3362 ev_at (w) += w->repeat; 3695 ev_at (w) += w->repeat;
3363 if (ev_at (w) < mn_now) 3696 if (ev_at (w) < mn_now)
3364 ev_at (w) = mn_now; 3697 ev_at (w) = mn_now;
3365 3698
3366 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3699 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3367 3700
3368 ANHE_at_cache (timers [HEAP0]); 3701 ANHE_at_cache (timers [HEAP0]);
3369 downheap (timers, timercnt, HEAP0); 3702 downheap (timers, timercnt, HEAP0);
3370 } 3703 }
3371 else 3704 else
… …
3380 } 3713 }
3381} 3714}
3382 3715
3383#if EV_PERIODIC_ENABLE 3716#if EV_PERIODIC_ENABLE
3384 3717
3385noinline 3718ecb_noinline
3386static void 3719static void
3387periodic_recalc (EV_P_ ev_periodic *w) 3720periodic_recalc (EV_P_ ev_periodic *w)
3388{ 3721{
3389 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3722 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); 3723 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3393 while (at <= ev_rt_now) 3726 while (at <= ev_rt_now)
3394 { 3727 {
3395 ev_tstamp nat = at + w->interval; 3728 ev_tstamp nat = at + w->interval;
3396 3729
3397 /* when resolution fails us, we use ev_rt_now */ 3730 /* when resolution fails us, we use ev_rt_now */
3398 if (expect_false (nat == at)) 3731 if (ecb_expect_false (nat == at))
3399 { 3732 {
3400 at = ev_rt_now; 3733 at = ev_rt_now;
3401 break; 3734 break;
3402 } 3735 }
3403 3736
… …
3449 } 3782 }
3450} 3783}
3451 3784
3452/* simply recalculate all periodics */ 3785/* simply recalculate all periodics */
3453/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3786/* TODO: maybe ensure that at least one event happens when jumping forward? */
3454noinline ecb_cold 3787ecb_noinline ecb_cold
3455static void 3788static void
3456periodics_reschedule (EV_P) 3789periodics_reschedule (EV_P)
3457{ 3790{
3458 int i; 3791 int i;
3459 3792
… …
3473 reheap (periodics, periodiccnt); 3806 reheap (periodics, periodiccnt);
3474} 3807}
3475#endif 3808#endif
3476 3809
3477/* adjust all timers by a given offset */ 3810/* adjust all timers by a given offset */
3478noinline ecb_cold 3811ecb_noinline ecb_cold
3479static void 3812static void
3480timers_reschedule (EV_P_ ev_tstamp adjust) 3813timers_reschedule (EV_P_ ev_tstamp adjust)
3481{ 3814{
3482 int i; 3815 int i;
3483 3816
… …
3493/* also detect if there was a timejump, and act accordingly */ 3826/* also detect if there was a timejump, and act accordingly */
3494inline_speed void 3827inline_speed void
3495time_update (EV_P_ ev_tstamp max_block) 3828time_update (EV_P_ ev_tstamp max_block)
3496{ 3829{
3497#if EV_USE_MONOTONIC 3830#if EV_USE_MONOTONIC
3498 if (expect_true (have_monotonic)) 3831 if (ecb_expect_true (have_monotonic))
3499 { 3832 {
3500 int i; 3833 int i;
3501 ev_tstamp odiff = rtmn_diff; 3834 ev_tstamp odiff = rtmn_diff;
3502 3835
3503 mn_now = get_clock (); 3836 mn_now = get_clock ();
3504 3837
3505 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3838 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3506 /* interpolate in the meantime */ 3839 /* interpolate in the meantime */
3507 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3840 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3508 { 3841 {
3509 ev_rt_now = rtmn_diff + mn_now; 3842 ev_rt_now = rtmn_diff + mn_now;
3510 return; 3843 return;
3511 } 3844 }
3512 3845
… …
3526 ev_tstamp diff; 3859 ev_tstamp diff;
3527 rtmn_diff = ev_rt_now - mn_now; 3860 rtmn_diff = ev_rt_now - mn_now;
3528 3861
3529 diff = odiff - rtmn_diff; 3862 diff = odiff - rtmn_diff;
3530 3863
3531 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3864 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3532 return; /* all is well */ 3865 return; /* all is well */
3533 3866
3534 ev_rt_now = ev_time (); 3867 ev_rt_now = ev_time ();
3535 mn_now = get_clock (); 3868 mn_now = get_clock ();
3536 now_floor = mn_now; 3869 now_floor = mn_now;
… …
3545 else 3878 else
3546#endif 3879#endif
3547 { 3880 {
3548 ev_rt_now = ev_time (); 3881 ev_rt_now = ev_time ();
3549 3882
3550 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3883 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3551 { 3884 {
3552 /* adjust timers. this is easy, as the offset is the same for all of them */ 3885 /* 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); 3886 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3554#if EV_PERIODIC_ENABLE 3887#if EV_PERIODIC_ENABLE
3555 periodics_reschedule (EV_A); 3888 periodics_reschedule (EV_A);
… …
3578#if EV_VERIFY >= 2 3911#if EV_VERIFY >= 2
3579 ev_verify (EV_A); 3912 ev_verify (EV_A);
3580#endif 3913#endif
3581 3914
3582#ifndef _WIN32 3915#ifndef _WIN32
3583 if (expect_false (curpid)) /* penalise the forking check even more */ 3916 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3584 if (expect_false (getpid () != curpid)) 3917 if (ecb_expect_false (getpid () != curpid))
3585 { 3918 {
3586 curpid = getpid (); 3919 curpid = getpid ();
3587 postfork = 1; 3920 postfork = 1;
3588 } 3921 }
3589#endif 3922#endif
3590 3923
3591#if EV_FORK_ENABLE 3924#if EV_FORK_ENABLE
3592 /* we might have forked, so queue fork handlers */ 3925 /* we might have forked, so queue fork handlers */
3593 if (expect_false (postfork)) 3926 if (ecb_expect_false (postfork))
3594 if (forkcnt) 3927 if (forkcnt)
3595 { 3928 {
3596 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3929 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3597 EV_INVOKE_PENDING; 3930 EV_INVOKE_PENDING;
3598 } 3931 }
3599#endif 3932#endif
3600 3933
3601#if EV_PREPARE_ENABLE 3934#if EV_PREPARE_ENABLE
3602 /* queue prepare watchers (and execute them) */ 3935 /* queue prepare watchers (and execute them) */
3603 if (expect_false (preparecnt)) 3936 if (ecb_expect_false (preparecnt))
3604 { 3937 {
3605 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3938 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3606 EV_INVOKE_PENDING; 3939 EV_INVOKE_PENDING;
3607 } 3940 }
3608#endif 3941#endif
3609 3942
3610 if (expect_false (loop_done)) 3943 if (ecb_expect_false (loop_done))
3611 break; 3944 break;
3612 3945
3613 /* we might have forked, so reify kernel state if necessary */ 3946 /* we might have forked, so reify kernel state if necessary */
3614 if (expect_false (postfork)) 3947 if (ecb_expect_false (postfork))
3615 loop_fork (EV_A); 3948 loop_fork (EV_A);
3616 3949
3617 /* update fd-related kernel structures */ 3950 /* update fd-related kernel structures */
3618 fd_reify (EV_A); 3951 fd_reify (EV_A);
3619 3952
… …
3624 3957
3625 /* remember old timestamp for io_blocktime calculation */ 3958 /* remember old timestamp for io_blocktime calculation */
3626 ev_tstamp prev_mn_now = mn_now; 3959 ev_tstamp prev_mn_now = mn_now;
3627 3960
3628 /* update time to cancel out callback processing overhead */ 3961 /* update time to cancel out callback processing overhead */
3629 time_update (EV_A_ 1e100); 3962 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3630 3963
3631 /* from now on, we want a pipe-wake-up */ 3964 /* from now on, we want a pipe-wake-up */
3632 pipe_write_wanted = 1; 3965 pipe_write_wanted = 1;
3633 3966
3634 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3967 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3635 3968
3636 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3969 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3637 { 3970 {
3638 waittime = MAX_BLOCKTIME; 3971 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3639 3972
3640 if (timercnt) 3973 if (timercnt)
3641 { 3974 {
3642 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3975 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3643 if (waittime > to) waittime = to; 3976 if (waittime > to) waittime = to;
… …
3650 if (waittime > to) waittime = to; 3983 if (waittime > to) waittime = to;
3651 } 3984 }
3652#endif 3985#endif
3653 3986
3654 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3987 /* don't let timeouts decrease the waittime below timeout_blocktime */
3655 if (expect_false (waittime < timeout_blocktime)) 3988 if (ecb_expect_false (waittime < timeout_blocktime))
3656 waittime = timeout_blocktime; 3989 waittime = timeout_blocktime;
3657 3990
3658 /* at this point, we NEED to wait, so we have to ensure */ 3991 /* now there are two more special cases left, either we have
3659 /* to pass a minimum nonzero value to the backend */ 3992 * already-expired timers, so we should not sleep, or we have timers
3993 * that expire very soon, in which case we need to wait for a minimum
3994 * amount of time for some event loop backends.
3995 */
3660 if (expect_false (waittime < backend_mintime)) 3996 if (ecb_expect_false (waittime < backend_mintime))
3997 waittime = waittime <= EV_TS_CONST (0.)
3998 ? EV_TS_CONST (0.)
3661 waittime = backend_mintime; 3999 : backend_mintime;
3662 4000
3663 /* extra check because io_blocktime is commonly 0 */ 4001 /* extra check because io_blocktime is commonly 0 */
3664 if (expect_false (io_blocktime)) 4002 if (ecb_expect_false (io_blocktime))
3665 { 4003 {
3666 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4004 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3667 4005
3668 if (sleeptime > waittime - backend_mintime) 4006 if (sleeptime > waittime - backend_mintime)
3669 sleeptime = waittime - backend_mintime; 4007 sleeptime = waittime - backend_mintime;
3670 4008
3671 if (expect_true (sleeptime > 0.)) 4009 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3672 { 4010 {
3673 ev_sleep (sleeptime); 4011 ev_sleep (sleeptime);
3674 waittime -= sleeptime; 4012 waittime -= sleeptime;
3675 } 4013 }
3676 } 4014 }
… …
3690 { 4028 {
3691 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4029 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); 4030 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3693 } 4031 }
3694 4032
3695
3696 /* update ev_rt_now, do magic */ 4033 /* update ev_rt_now, do magic */
3697 time_update (EV_A_ waittime + sleeptime); 4034 time_update (EV_A_ waittime + sleeptime);
3698 } 4035 }
3699 4036
3700 /* queue pending timers and reschedule them */ 4037 /* queue pending timers and reschedule them */
… …
3708 idle_reify (EV_A); 4045 idle_reify (EV_A);
3709#endif 4046#endif
3710 4047
3711#if EV_CHECK_ENABLE 4048#if EV_CHECK_ENABLE
3712 /* queue check watchers, to be executed first */ 4049 /* queue check watchers, to be executed first */
3713 if (expect_false (checkcnt)) 4050 if (ecb_expect_false (checkcnt))
3714 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4051 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3715#endif 4052#endif
3716 4053
3717 EV_INVOKE_PENDING; 4054 EV_INVOKE_PENDING;
3718 } 4055 }
3719 while (expect_true ( 4056 while (ecb_expect_true (
3720 activecnt 4057 activecnt
3721 && !loop_done 4058 && !loop_done
3722 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4059 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3723 )); 4060 ));
3724 4061
… …
3731 4068
3732 return activecnt; 4069 return activecnt;
3733} 4070}
3734 4071
3735void 4072void
3736ev_break (EV_P_ int how) EV_THROW 4073ev_break (EV_P_ int how) EV_NOEXCEPT
3737{ 4074{
3738 loop_done = how; 4075 loop_done = how;
3739} 4076}
3740 4077
3741void 4078void
3742ev_ref (EV_P) EV_THROW 4079ev_ref (EV_P) EV_NOEXCEPT
3743{ 4080{
3744 ++activecnt; 4081 ++activecnt;
3745} 4082}
3746 4083
3747void 4084void
3748ev_unref (EV_P) EV_THROW 4085ev_unref (EV_P) EV_NOEXCEPT
3749{ 4086{
3750 --activecnt; 4087 --activecnt;
3751} 4088}
3752 4089
3753void 4090void
3754ev_now_update (EV_P) EV_THROW 4091ev_now_update (EV_P) EV_NOEXCEPT
3755{ 4092{
3756 time_update (EV_A_ 1e100); 4093 time_update (EV_A_ EV_TSTAMP_HUGE);
3757} 4094}
3758 4095
3759void 4096void
3760ev_suspend (EV_P) EV_THROW 4097ev_suspend (EV_P) EV_NOEXCEPT
3761{ 4098{
3762 ev_now_update (EV_A); 4099 ev_now_update (EV_A);
3763} 4100}
3764 4101
3765void 4102void
3766ev_resume (EV_P) EV_THROW 4103ev_resume (EV_P) EV_NOEXCEPT
3767{ 4104{
3768 ev_tstamp mn_prev = mn_now; 4105 ev_tstamp mn_prev = mn_now;
3769 4106
3770 ev_now_update (EV_A); 4107 ev_now_update (EV_A);
3771 timers_reschedule (EV_A_ mn_now - mn_prev); 4108 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3788inline_size void 4125inline_size void
3789wlist_del (WL *head, WL elem) 4126wlist_del (WL *head, WL elem)
3790{ 4127{
3791 while (*head) 4128 while (*head)
3792 { 4129 {
3793 if (expect_true (*head == elem)) 4130 if (ecb_expect_true (*head == elem))
3794 { 4131 {
3795 *head = elem->next; 4132 *head = elem->next;
3796 break; 4133 break;
3797 } 4134 }
3798 4135
… …
3810 w->pending = 0; 4147 w->pending = 0;
3811 } 4148 }
3812} 4149}
3813 4150
3814int 4151int
3815ev_clear_pending (EV_P_ void *w) EV_THROW 4152ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3816{ 4153{
3817 W w_ = (W)w; 4154 W w_ = (W)w;
3818 int pending = w_->pending; 4155 int pending = w_->pending;
3819 4156
3820 if (expect_true (pending)) 4157 if (ecb_expect_true (pending))
3821 { 4158 {
3822 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4159 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3823 p->w = (W)&pending_w; 4160 p->w = (W)&pending_w;
3824 w_->pending = 0; 4161 w_->pending = 0;
3825 return p->events; 4162 return p->events;
… …
3852 w->active = 0; 4189 w->active = 0;
3853} 4190}
3854 4191
3855/*****************************************************************************/ 4192/*****************************************************************************/
3856 4193
3857noinline 4194ecb_noinline
3858void 4195void
3859ev_io_start (EV_P_ ev_io *w) EV_THROW 4196ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3860{ 4197{
3861 int fd = w->fd; 4198 int fd = w->fd;
3862 4199
3863 if (expect_false (ev_is_active (w))) 4200 if (ecb_expect_false (ev_is_active (w)))
3864 return; 4201 return;
3865 4202
3866 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4203 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)))); 4204 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3868 4205
4206#if EV_VERIFY >= 2
4207 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4208#endif
3869 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
3870 4210
3871 ev_start (EV_A_ (W)w, 1); 4211 ev_start (EV_A_ (W)w, 1);
3872 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4212 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3873 wlist_add (&anfds[fd].head, (WL)w); 4213 wlist_add (&anfds[fd].head, (WL)w);
3874 4214
3875 /* common bug, apparently */ 4215 /* common bug, apparently */
3876 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4216 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3877 4217
… …
3879 w->events &= ~EV__IOFDSET; 4219 w->events &= ~EV__IOFDSET;
3880 4220
3881 EV_FREQUENT_CHECK; 4221 EV_FREQUENT_CHECK;
3882} 4222}
3883 4223
3884noinline 4224ecb_noinline
3885void 4225void
3886ev_io_stop (EV_P_ ev_io *w) EV_THROW 4226ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3887{ 4227{
3888 clear_pending (EV_A_ (W)w); 4228 clear_pending (EV_A_ (W)w);
3889 if (expect_false (!ev_is_active (w))) 4229 if (ecb_expect_false (!ev_is_active (w)))
3890 return; 4230 return;
3891 4231
3892 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4232 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3893 4233
4234#if EV_VERIFY >= 2
4235 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4236#endif
3894 EV_FREQUENT_CHECK; 4237 EV_FREQUENT_CHECK;
3895 4238
3896 wlist_del (&anfds[w->fd].head, (WL)w); 4239 wlist_del (&anfds[w->fd].head, (WL)w);
3897 ev_stop (EV_A_ (W)w); 4240 ev_stop (EV_A_ (W)w);
3898 4241
3899 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4242 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3900 4243
3901 EV_FREQUENT_CHECK; 4244 EV_FREQUENT_CHECK;
3902} 4245}
3903 4246
3904noinline 4247ecb_noinline
3905void 4248void
3906ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4249ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3907{ 4250{
3908 if (expect_false (ev_is_active (w))) 4251 if (ecb_expect_false (ev_is_active (w)))
3909 return; 4252 return;
3910 4253
3911 ev_at (w) += mn_now; 4254 ev_at (w) += mn_now;
3912 4255
3913 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4256 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3914 4257
3915 EV_FREQUENT_CHECK; 4258 EV_FREQUENT_CHECK;
3916 4259
3917 ++timercnt; 4260 ++timercnt;
3918 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4261 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3919 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4262 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3920 ANHE_w (timers [ev_active (w)]) = (WT)w; 4263 ANHE_w (timers [ev_active (w)]) = (WT)w;
3921 ANHE_at_cache (timers [ev_active (w)]); 4264 ANHE_at_cache (timers [ev_active (w)]);
3922 upheap (timers, ev_active (w)); 4265 upheap (timers, ev_active (w));
3923 4266
3924 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3925 4268
3926 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4269 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3927} 4270}
3928 4271
3929noinline 4272ecb_noinline
3930void 4273void
3931ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4274ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3932{ 4275{
3933 clear_pending (EV_A_ (W)w); 4276 clear_pending (EV_A_ (W)w);
3934 if (expect_false (!ev_is_active (w))) 4277 if (ecb_expect_false (!ev_is_active (w)))
3935 return; 4278 return;
3936 4279
3937 EV_FREQUENT_CHECK; 4280 EV_FREQUENT_CHECK;
3938 4281
3939 { 4282 {
… …
3941 4284
3942 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4285 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3943 4286
3944 --timercnt; 4287 --timercnt;
3945 4288
3946 if (expect_true (active < timercnt + HEAP0)) 4289 if (ecb_expect_true (active < timercnt + HEAP0))
3947 { 4290 {
3948 timers [active] = timers [timercnt + HEAP0]; 4291 timers [active] = timers [timercnt + HEAP0];
3949 adjustheap (timers, timercnt, active); 4292 adjustheap (timers, timercnt, active);
3950 } 4293 }
3951 } 4294 }
… …
3955 ev_stop (EV_A_ (W)w); 4298 ev_stop (EV_A_ (W)w);
3956 4299
3957 EV_FREQUENT_CHECK; 4300 EV_FREQUENT_CHECK;
3958} 4301}
3959 4302
3960noinline 4303ecb_noinline
3961void 4304void
3962ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4305ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3963{ 4306{
3964 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
3965 4308
3966 clear_pending (EV_A_ (W)w); 4309 clear_pending (EV_A_ (W)w);
3967 4310
… …
3984 4327
3985 EV_FREQUENT_CHECK; 4328 EV_FREQUENT_CHECK;
3986} 4329}
3987 4330
3988ev_tstamp 4331ev_tstamp
3989ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4332ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3990{ 4333{
3991 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4334 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3992} 4335}
3993 4336
3994#if EV_PERIODIC_ENABLE 4337#if EV_PERIODIC_ENABLE
3995noinline 4338ecb_noinline
3996void 4339void
3997ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4340ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3998{ 4341{
3999 if (expect_false (ev_is_active (w))) 4342 if (ecb_expect_false (ev_is_active (w)))
4000 return; 4343 return;
4344
4345#if EV_USE_TIMERFD
4346 if (timerfd == -2)
4347 evtimerfd_init (EV_A);
4348#endif
4001 4349
4002 if (w->reschedule_cb) 4350 if (w->reschedule_cb)
4003 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4351 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4004 else if (w->interval) 4352 else if (w->interval)
4005 { 4353 {
… …
4011 4359
4012 EV_FREQUENT_CHECK; 4360 EV_FREQUENT_CHECK;
4013 4361
4014 ++periodiccnt; 4362 ++periodiccnt;
4015 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4363 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4016 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4364 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4017 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4365 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4018 ANHE_at_cache (periodics [ev_active (w)]); 4366 ANHE_at_cache (periodics [ev_active (w)]);
4019 upheap (periodics, ev_active (w)); 4367 upheap (periodics, ev_active (w));
4020 4368
4021 EV_FREQUENT_CHECK; 4369 EV_FREQUENT_CHECK;
4022 4370
4023 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4371 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4024} 4372}
4025 4373
4026noinline 4374ecb_noinline
4027void 4375void
4028ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4376ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4029{ 4377{
4030 clear_pending (EV_A_ (W)w); 4378 clear_pending (EV_A_ (W)w);
4031 if (expect_false (!ev_is_active (w))) 4379 if (ecb_expect_false (!ev_is_active (w)))
4032 return; 4380 return;
4033 4381
4034 EV_FREQUENT_CHECK; 4382 EV_FREQUENT_CHECK;
4035 4383
4036 { 4384 {
… …
4038 4386
4039 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4387 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4040 4388
4041 --periodiccnt; 4389 --periodiccnt;
4042 4390
4043 if (expect_true (active < periodiccnt + HEAP0)) 4391 if (ecb_expect_true (active < periodiccnt + HEAP0))
4044 { 4392 {
4045 periodics [active] = periodics [periodiccnt + HEAP0]; 4393 periodics [active] = periodics [periodiccnt + HEAP0];
4046 adjustheap (periodics, periodiccnt, active); 4394 adjustheap (periodics, periodiccnt, active);
4047 } 4395 }
4048 } 4396 }
… …
4050 ev_stop (EV_A_ (W)w); 4398 ev_stop (EV_A_ (W)w);
4051 4399
4052 EV_FREQUENT_CHECK; 4400 EV_FREQUENT_CHECK;
4053} 4401}
4054 4402
4055noinline 4403ecb_noinline
4056void 4404void
4057ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4405ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4058{ 4406{
4059 /* TODO: use adjustheap and recalculation */ 4407 /* TODO: use adjustheap and recalculation */
4060 ev_periodic_stop (EV_A_ w); 4408 ev_periodic_stop (EV_A_ w);
4061 ev_periodic_start (EV_A_ w); 4409 ev_periodic_start (EV_A_ w);
4062} 4410}
… …
4066# define SA_RESTART 0 4414# define SA_RESTART 0
4067#endif 4415#endif
4068 4416
4069#if EV_SIGNAL_ENABLE 4417#if EV_SIGNAL_ENABLE
4070 4418
4071noinline 4419ecb_noinline
4072void 4420void
4073ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4421ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4074{ 4422{
4075 if (expect_false (ev_is_active (w))) 4423 if (ecb_expect_false (ev_is_active (w)))
4076 return; 4424 return;
4077 4425
4078 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4426 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4079 4427
4080#if EV_MULTIPLICITY 4428#if EV_MULTIPLICITY
… …
4149 } 4497 }
4150 4498
4151 EV_FREQUENT_CHECK; 4499 EV_FREQUENT_CHECK;
4152} 4500}
4153 4501
4154noinline 4502ecb_noinline
4155void 4503void
4156ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4504ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4157{ 4505{
4158 clear_pending (EV_A_ (W)w); 4506 clear_pending (EV_A_ (W)w);
4159 if (expect_false (!ev_is_active (w))) 4507 if (ecb_expect_false (!ev_is_active (w)))
4160 return; 4508 return;
4161 4509
4162 EV_FREQUENT_CHECK; 4510 EV_FREQUENT_CHECK;
4163 4511
4164 wlist_del (&signals [w->signum - 1].head, (WL)w); 4512 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4192#endif 4540#endif
4193 4541
4194#if EV_CHILD_ENABLE 4542#if EV_CHILD_ENABLE
4195 4543
4196void 4544void
4197ev_child_start (EV_P_ ev_child *w) EV_THROW 4545ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4198{ 4546{
4199#if EV_MULTIPLICITY 4547#if EV_MULTIPLICITY
4200 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4548 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4201#endif 4549#endif
4202 if (expect_false (ev_is_active (w))) 4550 if (ecb_expect_false (ev_is_active (w)))
4203 return; 4551 return;
4204 4552
4205 EV_FREQUENT_CHECK; 4553 EV_FREQUENT_CHECK;
4206 4554
4207 ev_start (EV_A_ (W)w, 1); 4555 ev_start (EV_A_ (W)w, 1);
… …
4209 4557
4210 EV_FREQUENT_CHECK; 4558 EV_FREQUENT_CHECK;
4211} 4559}
4212 4560
4213void 4561void
4214ev_child_stop (EV_P_ ev_child *w) EV_THROW 4562ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4215{ 4563{
4216 clear_pending (EV_A_ (W)w); 4564 clear_pending (EV_A_ (W)w);
4217 if (expect_false (!ev_is_active (w))) 4565 if (ecb_expect_false (!ev_is_active (w)))
4218 return; 4566 return;
4219 4567
4220 EV_FREQUENT_CHECK; 4568 EV_FREQUENT_CHECK;
4221 4569
4222 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4570 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4236 4584
4237#define DEF_STAT_INTERVAL 5.0074891 4585#define DEF_STAT_INTERVAL 5.0074891
4238#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4586#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4239#define MIN_STAT_INTERVAL 0.1074891 4587#define MIN_STAT_INTERVAL 0.1074891
4240 4588
4241noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4589ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4242 4590
4243#if EV_USE_INOTIFY 4591#if EV_USE_INOTIFY
4244 4592
4245/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4593/* 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) 4594# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4247 4595
4248noinline 4596ecb_noinline
4249static void 4597static void
4250infy_add (EV_P_ ev_stat *w) 4598infy_add (EV_P_ ev_stat *w)
4251{ 4599{
4252 w->wd = inotify_add_watch (fs_fd, w->path, 4600 w->wd = inotify_add_watch (fs_fd, w->path,
4253 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4601 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4318 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4666 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4319 ev_timer_again (EV_A_ &w->timer); 4667 ev_timer_again (EV_A_ &w->timer);
4320 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4668 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4321} 4669}
4322 4670
4323noinline 4671ecb_noinline
4324static void 4672static void
4325infy_del (EV_P_ ev_stat *w) 4673infy_del (EV_P_ ev_stat *w)
4326{ 4674{
4327 int slot; 4675 int slot;
4328 int wd = w->wd; 4676 int wd = w->wd;
… …
4336 4684
4337 /* remove this watcher, if others are watching it, they will rearm */ 4685 /* remove this watcher, if others are watching it, they will rearm */
4338 inotify_rm_watch (fs_fd, wd); 4686 inotify_rm_watch (fs_fd, wd);
4339} 4687}
4340 4688
4341noinline 4689ecb_noinline
4342static void 4690static void
4343infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4691infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4344{ 4692{
4345 if (slot < 0) 4693 if (slot < 0)
4346 /* overflow, need to check for all hash slots */ 4694 /* overflow, need to check for all hash slots */
… …
4484#else 4832#else
4485# define EV_LSTAT(p,b) lstat (p, b) 4833# define EV_LSTAT(p,b) lstat (p, b)
4486#endif 4834#endif
4487 4835
4488void 4836void
4489ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4837ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4490{ 4838{
4491 if (lstat (w->path, &w->attr) < 0) 4839 if (lstat (w->path, &w->attr) < 0)
4492 w->attr.st_nlink = 0; 4840 w->attr.st_nlink = 0;
4493 else if (!w->attr.st_nlink) 4841 else if (!w->attr.st_nlink)
4494 w->attr.st_nlink = 1; 4842 w->attr.st_nlink = 1;
4495} 4843}
4496 4844
4497noinline 4845ecb_noinline
4498static void 4846static void
4499stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4847stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4500{ 4848{
4501 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4849 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4502 4850
… …
4534 ev_feed_event (EV_A_ w, EV_STAT); 4882 ev_feed_event (EV_A_ w, EV_STAT);
4535 } 4883 }
4536} 4884}
4537 4885
4538void 4886void
4539ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4887ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4540{ 4888{
4541 if (expect_false (ev_is_active (w))) 4889 if (ecb_expect_false (ev_is_active (w)))
4542 return; 4890 return;
4543 4891
4544 ev_stat_stat (EV_A_ w); 4892 ev_stat_stat (EV_A_ w);
4545 4893
4546 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4894 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4565 4913
4566 EV_FREQUENT_CHECK; 4914 EV_FREQUENT_CHECK;
4567} 4915}
4568 4916
4569void 4917void
4570ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4918ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4571{ 4919{
4572 clear_pending (EV_A_ (W)w); 4920 clear_pending (EV_A_ (W)w);
4573 if (expect_false (!ev_is_active (w))) 4921 if (ecb_expect_false (!ev_is_active (w)))
4574 return; 4922 return;
4575 4923
4576 EV_FREQUENT_CHECK; 4924 EV_FREQUENT_CHECK;
4577 4925
4578#if EV_USE_INOTIFY 4926#if EV_USE_INOTIFY
… …
4591} 4939}
4592#endif 4940#endif
4593 4941
4594#if EV_IDLE_ENABLE 4942#if EV_IDLE_ENABLE
4595void 4943void
4596ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4944ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4597{ 4945{
4598 if (expect_false (ev_is_active (w))) 4946 if (ecb_expect_false (ev_is_active (w)))
4599 return; 4947 return;
4600 4948
4601 pri_adjust (EV_A_ (W)w); 4949 pri_adjust (EV_A_ (W)w);
4602 4950
4603 EV_FREQUENT_CHECK; 4951 EV_FREQUENT_CHECK;
… …
4606 int active = ++idlecnt [ABSPRI (w)]; 4954 int active = ++idlecnt [ABSPRI (w)];
4607 4955
4608 ++idleall; 4956 ++idleall;
4609 ev_start (EV_A_ (W)w, active); 4957 ev_start (EV_A_ (W)w, active);
4610 4958
4611 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4959 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4612 idles [ABSPRI (w)][active - 1] = w; 4960 idles [ABSPRI (w)][active - 1] = w;
4613 } 4961 }
4614 4962
4615 EV_FREQUENT_CHECK; 4963 EV_FREQUENT_CHECK;
4616} 4964}
4617 4965
4618void 4966void
4619ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4967ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4620{ 4968{
4621 clear_pending (EV_A_ (W)w); 4969 clear_pending (EV_A_ (W)w);
4622 if (expect_false (!ev_is_active (w))) 4970 if (ecb_expect_false (!ev_is_active (w)))
4623 return; 4971 return;
4624 4972
4625 EV_FREQUENT_CHECK; 4973 EV_FREQUENT_CHECK;
4626 4974
4627 { 4975 {
… …
4638} 4986}
4639#endif 4987#endif
4640 4988
4641#if EV_PREPARE_ENABLE 4989#if EV_PREPARE_ENABLE
4642void 4990void
4643ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4991ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4644{ 4992{
4645 if (expect_false (ev_is_active (w))) 4993 if (ecb_expect_false (ev_is_active (w)))
4646 return; 4994 return;
4647 4995
4648 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4649 4997
4650 ev_start (EV_A_ (W)w, ++preparecnt); 4998 ev_start (EV_A_ (W)w, ++preparecnt);
4651 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4999 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4652 prepares [preparecnt - 1] = w; 5000 prepares [preparecnt - 1] = w;
4653 5001
4654 EV_FREQUENT_CHECK; 5002 EV_FREQUENT_CHECK;
4655} 5003}
4656 5004
4657void 5005void
4658ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5006ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4659{ 5007{
4660 clear_pending (EV_A_ (W)w); 5008 clear_pending (EV_A_ (W)w);
4661 if (expect_false (!ev_is_active (w))) 5009 if (ecb_expect_false (!ev_is_active (w)))
4662 return; 5010 return;
4663 5011
4664 EV_FREQUENT_CHECK; 5012 EV_FREQUENT_CHECK;
4665 5013
4666 { 5014 {
… …
4676} 5024}
4677#endif 5025#endif
4678 5026
4679#if EV_CHECK_ENABLE 5027#if EV_CHECK_ENABLE
4680void 5028void
4681ev_check_start (EV_P_ ev_check *w) EV_THROW 5029ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4682{ 5030{
4683 if (expect_false (ev_is_active (w))) 5031 if (ecb_expect_false (ev_is_active (w)))
4684 return; 5032 return;
4685 5033
4686 EV_FREQUENT_CHECK; 5034 EV_FREQUENT_CHECK;
4687 5035
4688 ev_start (EV_A_ (W)w, ++checkcnt); 5036 ev_start (EV_A_ (W)w, ++checkcnt);
4689 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5037 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4690 checks [checkcnt - 1] = w; 5038 checks [checkcnt - 1] = w;
4691 5039
4692 EV_FREQUENT_CHECK; 5040 EV_FREQUENT_CHECK;
4693} 5041}
4694 5042
4695void 5043void
4696ev_check_stop (EV_P_ ev_check *w) EV_THROW 5044ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4697{ 5045{
4698 clear_pending (EV_A_ (W)w); 5046 clear_pending (EV_A_ (W)w);
4699 if (expect_false (!ev_is_active (w))) 5047 if (ecb_expect_false (!ev_is_active (w)))
4700 return; 5048 return;
4701 5049
4702 EV_FREQUENT_CHECK; 5050 EV_FREQUENT_CHECK;
4703 5051
4704 { 5052 {
… …
4713 EV_FREQUENT_CHECK; 5061 EV_FREQUENT_CHECK;
4714} 5062}
4715#endif 5063#endif
4716 5064
4717#if EV_EMBED_ENABLE 5065#if EV_EMBED_ENABLE
4718noinline 5066ecb_noinline
4719void 5067void
4720ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5068ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4721{ 5069{
4722 ev_run (w->other, EVRUN_NOWAIT); 5070 ev_run (w->other, EVRUN_NOWAIT);
4723} 5071}
4724 5072
4725static void 5073static void
… …
4747 ev_run (EV_A_ EVRUN_NOWAIT); 5095 ev_run (EV_A_ EVRUN_NOWAIT);
4748 } 5096 }
4749 } 5097 }
4750} 5098}
4751 5099
5100#if EV_FORK_ENABLE
4752static void 5101static void
4753embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5102embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4754{ 5103{
4755 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5104 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4756 5105
… …
4763 ev_run (EV_A_ EVRUN_NOWAIT); 5112 ev_run (EV_A_ EVRUN_NOWAIT);
4764 } 5113 }
4765 5114
4766 ev_embed_start (EV_A_ w); 5115 ev_embed_start (EV_A_ w);
4767} 5116}
5117#endif
4768 5118
4769#if 0 5119#if 0
4770static void 5120static void
4771embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5121embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4772{ 5122{
4773 ev_idle_stop (EV_A_ idle); 5123 ev_idle_stop (EV_A_ idle);
4774} 5124}
4775#endif 5125#endif
4776 5126
4777void 5127void
4778ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5128ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4779{ 5129{
4780 if (expect_false (ev_is_active (w))) 5130 if (ecb_expect_false (ev_is_active (w)))
4781 return; 5131 return;
4782 5132
4783 { 5133 {
4784 EV_P = w->other; 5134 EV_P = w->other;
4785 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5135 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4793 5143
4794 ev_prepare_init (&w->prepare, embed_prepare_cb); 5144 ev_prepare_init (&w->prepare, embed_prepare_cb);
4795 ev_set_priority (&w->prepare, EV_MINPRI); 5145 ev_set_priority (&w->prepare, EV_MINPRI);
4796 ev_prepare_start (EV_A_ &w->prepare); 5146 ev_prepare_start (EV_A_ &w->prepare);
4797 5147
5148#if EV_FORK_ENABLE
4798 ev_fork_init (&w->fork, embed_fork_cb); 5149 ev_fork_init (&w->fork, embed_fork_cb);
4799 ev_fork_start (EV_A_ &w->fork); 5150 ev_fork_start (EV_A_ &w->fork);
5151#endif
4800 5152
4801 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5153 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4802 5154
4803 ev_start (EV_A_ (W)w, 1); 5155 ev_start (EV_A_ (W)w, 1);
4804 5156
4805 EV_FREQUENT_CHECK; 5157 EV_FREQUENT_CHECK;
4806} 5158}
4807 5159
4808void 5160void
4809ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5161ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4810{ 5162{
4811 clear_pending (EV_A_ (W)w); 5163 clear_pending (EV_A_ (W)w);
4812 if (expect_false (!ev_is_active (w))) 5164 if (ecb_expect_false (!ev_is_active (w)))
4813 return; 5165 return;
4814 5166
4815 EV_FREQUENT_CHECK; 5167 EV_FREQUENT_CHECK;
4816 5168
4817 ev_io_stop (EV_A_ &w->io); 5169 ev_io_stop (EV_A_ &w->io);
4818 ev_prepare_stop (EV_A_ &w->prepare); 5170 ev_prepare_stop (EV_A_ &w->prepare);
5171#if EV_FORK_ENABLE
4819 ev_fork_stop (EV_A_ &w->fork); 5172 ev_fork_stop (EV_A_ &w->fork);
5173#endif
4820 5174
4821 ev_stop (EV_A_ (W)w); 5175 ev_stop (EV_A_ (W)w);
4822 5176
4823 EV_FREQUENT_CHECK; 5177 EV_FREQUENT_CHECK;
4824} 5178}
4825#endif 5179#endif
4826 5180
4827#if EV_FORK_ENABLE 5181#if EV_FORK_ENABLE
4828void 5182void
4829ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5183ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4830{ 5184{
4831 if (expect_false (ev_is_active (w))) 5185 if (ecb_expect_false (ev_is_active (w)))
4832 return; 5186 return;
4833 5187
4834 EV_FREQUENT_CHECK; 5188 EV_FREQUENT_CHECK;
4835 5189
4836 ev_start (EV_A_ (W)w, ++forkcnt); 5190 ev_start (EV_A_ (W)w, ++forkcnt);
4837 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5191 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4838 forks [forkcnt - 1] = w; 5192 forks [forkcnt - 1] = w;
4839 5193
4840 EV_FREQUENT_CHECK; 5194 EV_FREQUENT_CHECK;
4841} 5195}
4842 5196
4843void 5197void
4844ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5198ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4845{ 5199{
4846 clear_pending (EV_A_ (W)w); 5200 clear_pending (EV_A_ (W)w);
4847 if (expect_false (!ev_is_active (w))) 5201 if (ecb_expect_false (!ev_is_active (w)))
4848 return; 5202 return;
4849 5203
4850 EV_FREQUENT_CHECK; 5204 EV_FREQUENT_CHECK;
4851 5205
4852 { 5206 {
… …
4862} 5216}
4863#endif 5217#endif
4864 5218
4865#if EV_CLEANUP_ENABLE 5219#if EV_CLEANUP_ENABLE
4866void 5220void
4867ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5221ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4868{ 5222{
4869 if (expect_false (ev_is_active (w))) 5223 if (ecb_expect_false (ev_is_active (w)))
4870 return; 5224 return;
4871 5225
4872 EV_FREQUENT_CHECK; 5226 EV_FREQUENT_CHECK;
4873 5227
4874 ev_start (EV_A_ (W)w, ++cleanupcnt); 5228 ev_start (EV_A_ (W)w, ++cleanupcnt);
4875 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5229 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4876 cleanups [cleanupcnt - 1] = w; 5230 cleanups [cleanupcnt - 1] = w;
4877 5231
4878 /* cleanup watchers should never keep a refcount on the loop */ 5232 /* cleanup watchers should never keep a refcount on the loop */
4879 ev_unref (EV_A); 5233 ev_unref (EV_A);
4880 EV_FREQUENT_CHECK; 5234 EV_FREQUENT_CHECK;
4881} 5235}
4882 5236
4883void 5237void
4884ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5238ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4885{ 5239{
4886 clear_pending (EV_A_ (W)w); 5240 clear_pending (EV_A_ (W)w);
4887 if (expect_false (!ev_is_active (w))) 5241 if (ecb_expect_false (!ev_is_active (w)))
4888 return; 5242 return;
4889 5243
4890 EV_FREQUENT_CHECK; 5244 EV_FREQUENT_CHECK;
4891 ev_ref (EV_A); 5245 ev_ref (EV_A);
4892 5246
… …
4903} 5257}
4904#endif 5258#endif
4905 5259
4906#if EV_ASYNC_ENABLE 5260#if EV_ASYNC_ENABLE
4907void 5261void
4908ev_async_start (EV_P_ ev_async *w) EV_THROW 5262ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4909{ 5263{
4910 if (expect_false (ev_is_active (w))) 5264 if (ecb_expect_false (ev_is_active (w)))
4911 return; 5265 return;
4912 5266
4913 w->sent = 0; 5267 w->sent = 0;
4914 5268
4915 evpipe_init (EV_A); 5269 evpipe_init (EV_A);
4916 5270
4917 EV_FREQUENT_CHECK; 5271 EV_FREQUENT_CHECK;
4918 5272
4919 ev_start (EV_A_ (W)w, ++asynccnt); 5273 ev_start (EV_A_ (W)w, ++asynccnt);
4920 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5274 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4921 asyncs [asynccnt - 1] = w; 5275 asyncs [asynccnt - 1] = w;
4922 5276
4923 EV_FREQUENT_CHECK; 5277 EV_FREQUENT_CHECK;
4924} 5278}
4925 5279
4926void 5280void
4927ev_async_stop (EV_P_ ev_async *w) EV_THROW 5281ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4928{ 5282{
4929 clear_pending (EV_A_ (W)w); 5283 clear_pending (EV_A_ (W)w);
4930 if (expect_false (!ev_is_active (w))) 5284 if (ecb_expect_false (!ev_is_active (w)))
4931 return; 5285 return;
4932 5286
4933 EV_FREQUENT_CHECK; 5287 EV_FREQUENT_CHECK;
4934 5288
4935 { 5289 {
… …
4943 5297
4944 EV_FREQUENT_CHECK; 5298 EV_FREQUENT_CHECK;
4945} 5299}
4946 5300
4947void 5301void
4948ev_async_send (EV_P_ ev_async *w) EV_THROW 5302ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4949{ 5303{
4950 w->sent = 1; 5304 w->sent = 1;
4951 evpipe_write (EV_A_ &async_pending); 5305 evpipe_write (EV_A_ &async_pending);
4952} 5306}
4953#endif 5307#endif
… …
4990 5344
4991 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5345 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4992} 5346}
4993 5347
4994void 5348void
4995ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5349ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4996{ 5350{
4997 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5351 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 5352
5005 once->cb = cb; 5353 once->cb = cb;
5006 once->arg = arg; 5354 once->arg = arg;
5007 5355
5008 ev_init (&once->io, once_cb_io); 5356 ev_init (&once->io, once_cb_io);
… …
5023/*****************************************************************************/ 5371/*****************************************************************************/
5024 5372
5025#if EV_WALK_ENABLE 5373#if EV_WALK_ENABLE
5026ecb_cold 5374ecb_cold
5027void 5375void
5028ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5376ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
5029{ 5377{
5030 int i, j; 5378 int i, j;
5031 ev_watcher_list *wl, *wn; 5379 ev_watcher_list *wl, *wn;
5032 5380
5033 if (types & (EV_IO | EV_EMBED)) 5381 if (types & (EV_IO | EV_EMBED))

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