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Comparing libev/ev.c (file contents):
Revision 1.482 by root, Sat Jul 28 04:15:15 2018 UTC vs.
Revision 1.522 by root, Tue Dec 31 06:02:28 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
… …
342#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
343# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
344# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
345# else 390# else
346# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
392# endif
393#endif
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
347# endif 400# endif
348#endif 401#endif
349 402
350#if 0 /* debugging */ 403#if 0 /* debugging */
351# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
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
1911 /* maybe this should round up, as ms is very low resolution */ 2095 /* maybe this should round up, as ms is very low resolution */
1912 /* compared to select (µs) or nanosleep (ns) */ 2096 /* compared to select (µs) or nanosleep (ns) */
1913 Sleep ((unsigned long)(delay * 1e3)); 2097 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1914#else 2098#else
1915 struct timeval tv; 2099 struct timeval tv;
1916 2100
1917 /* 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 */
1918 /* something not guaranteed by newer posix versions, but guaranteed */ 2102 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1948 } 2132 }
1949 2133
1950 return ncur; 2134 return ncur;
1951} 2135}
1952 2136
1953noinline ecb_cold 2137ecb_noinline ecb_cold
1954static void * 2138static void *
1955array_realloc (int elem, void *base, int *cur, int cnt) 2139array_realloc (int elem, void *base, int *cur, int cnt)
1956{ 2140{
1957 *cur = array_nextsize (elem, *cur, cnt); 2141 *cur = array_nextsize (elem, *cur, cnt);
1958 return ev_realloc (base, elem * *cur); 2142 return ev_realloc (base, elem * *cur);
1959} 2143}
1960 2144
2145#define array_needsize_noinit(base,offset,count)
2146
1961#define array_init_zero(base,count) \ 2147#define array_needsize_zerofill(base,offset,count) \
1962 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2148 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1963 2149
1964#define array_needsize(type,base,cur,cnt,init) \ 2150#define array_needsize(type,base,cur,cnt,init) \
1965 if (expect_false ((cnt) > (cur))) \ 2151 if (ecb_expect_false ((cnt) > (cur))) \
1966 { \ 2152 { \
1967 ecb_unused int ocur_ = (cur); \ 2153 ecb_unused int ocur_ = (cur); \
1968 (base) = (type *)array_realloc \ 2154 (base) = (type *)array_realloc \
1969 (sizeof (type), (base), &(cur), (cnt)); \ 2155 (sizeof (type), (base), &(cur), (cnt)); \
1970 init ((base) + (ocur_), (cur) - ocur_); \ 2156 init ((base), ocur_, ((cur) - ocur_)); \
1971 } 2157 }
1972 2158
1973#if 0 2159#if 0
1974#define array_slim(type,stem) \ 2160#define array_slim(type,stem) \
1975 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2161 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1984 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
1985 2171
1986/*****************************************************************************/ 2172/*****************************************************************************/
1987 2173
1988/* dummy callback for pending events */ 2174/* dummy callback for pending events */
1989noinline 2175ecb_noinline
1990static void 2176static void
1991pendingcb (EV_P_ ev_prepare *w, int revents) 2177pendingcb (EV_P_ ev_prepare *w, int revents)
1992{ 2178{
1993} 2179}
1994 2180
1995noinline 2181ecb_noinline
1996void 2182void
1997ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2183ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1998{ 2184{
1999 W w_ = (W)w; 2185 W w_ = (W)w;
2000 int pri = ABSPRI (w_); 2186 int pri = ABSPRI (w_);
2001 2187
2002 if (expect_false (w_->pending)) 2188 if (ecb_expect_false (w_->pending))
2003 pendings [pri][w_->pending - 1].events |= revents; 2189 pendings [pri][w_->pending - 1].events |= revents;
2004 else 2190 else
2005 { 2191 {
2006 w_->pending = ++pendingcnt [pri]; 2192 w_->pending = ++pendingcnt [pri];
2007 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2193 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2008 pendings [pri][w_->pending - 1].w = w_; 2194 pendings [pri][w_->pending - 1].w = w_;
2009 pendings [pri][w_->pending - 1].events = revents; 2195 pendings [pri][w_->pending - 1].events = revents;
2010 } 2196 }
2011 2197
2012 pendingpri = NUMPRI - 1; 2198 pendingpri = NUMPRI - 1;
2013} 2199}
2014 2200
2015inline_speed void 2201inline_speed void
2016feed_reverse (EV_P_ W w) 2202feed_reverse (EV_P_ W w)
2017{ 2203{
2018 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2204 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2019 rfeeds [rfeedcnt++] = w; 2205 rfeeds [rfeedcnt++] = w;
2020} 2206}
2021 2207
2022inline_size void 2208inline_size void
2023feed_reverse_done (EV_P_ int revents) 2209feed_reverse_done (EV_P_ int revents)
… …
2058inline_speed void 2244inline_speed void
2059fd_event (EV_P_ int fd, int revents) 2245fd_event (EV_P_ int fd, int revents)
2060{ 2246{
2061 ANFD *anfd = anfds + fd; 2247 ANFD *anfd = anfds + fd;
2062 2248
2063 if (expect_true (!anfd->reify)) 2249 if (ecb_expect_true (!anfd->reify))
2064 fd_event_nocheck (EV_A_ fd, revents); 2250 fd_event_nocheck (EV_A_ fd, revents);
2065} 2251}
2066 2252
2067void 2253void
2068ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2254ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2069{ 2255{
2070 if (fd >= 0 && fd < anfdmax) 2256 if (fd >= 0 && fd < anfdmax)
2071 fd_event_nocheck (EV_A_ fd, revents); 2257 fd_event_nocheck (EV_A_ fd, revents);
2072} 2258}
2073 2259
… …
2076inline_size void 2262inline_size void
2077fd_reify (EV_P) 2263fd_reify (EV_P)
2078{ 2264{
2079 int i; 2265 int i;
2080 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
2081#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2279#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2082 for (i = 0; i < fdchangecnt; ++i) 2280 for (i = 0; i < changecnt; ++i)
2083 { 2281 {
2084 int fd = fdchanges [i]; 2282 int fd = fdchanges [i];
2085 ANFD *anfd = anfds + fd; 2283 ANFD *anfd = anfds + fd;
2086 2284
2087 if (anfd->reify & EV__IOFDSET && anfd->head) 2285 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2101 } 2299 }
2102 } 2300 }
2103 } 2301 }
2104#endif 2302#endif
2105 2303
2106 for (i = 0; i < fdchangecnt; ++i) 2304 for (i = 0; i < changecnt; ++i)
2107 { 2305 {
2108 int fd = fdchanges [i]; 2306 int fd = fdchanges [i];
2109 ANFD *anfd = anfds + fd; 2307 ANFD *anfd = anfds + fd;
2110 ev_io *w; 2308 ev_io *w;
2111 2309
2112 unsigned char o_events = anfd->events; 2310 unsigned char o_events = anfd->events;
2113 unsigned char o_reify = anfd->reify; 2311 unsigned char o_reify = anfd->reify;
2114 2312
2115 anfd->reify = 0; 2313 anfd->reify = 0;
2116 2314
2117 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2315 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2118 { 2316 {
2119 anfd->events = 0; 2317 anfd->events = 0;
2120 2318
2121 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)
2122 anfd->events |= (unsigned char)w->events; 2320 anfd->events |= (unsigned char)w->events;
… …
2127 2325
2128 if (o_reify & EV__IOFDSET) 2326 if (o_reify & EV__IOFDSET)
2129 backend_modify (EV_A_ fd, o_events, anfd->events); 2327 backend_modify (EV_A_ fd, o_events, anfd->events);
2130 } 2328 }
2131 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
2132 fdchangecnt = 0; 2337 fdchangecnt -= changecnt;
2133} 2338}
2134 2339
2135/* something about the given fd changed */ 2340/* something about the given fd changed */
2136inline_size 2341inline_size
2137void 2342void
2138fd_change (EV_P_ int fd, int flags) 2343fd_change (EV_P_ int fd, int flags)
2139{ 2344{
2140 unsigned char reify = anfds [fd].reify; 2345 unsigned char reify = anfds [fd].reify;
2141 anfds [fd].reify |= flags; 2346 anfds [fd].reify |= flags;
2142 2347
2143 if (expect_true (!reify)) 2348 if (ecb_expect_true (!reify))
2144 { 2349 {
2145 ++fdchangecnt; 2350 ++fdchangecnt;
2146 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2351 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2147 fdchanges [fdchangecnt - 1] = fd; 2352 fdchanges [fdchangecnt - 1] = fd;
2148 } 2353 }
2149} 2354}
2150 2355
2151/* 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 */
… …
2171 return fcntl (fd, F_GETFD) != -1; 2376 return fcntl (fd, F_GETFD) != -1;
2172#endif 2377#endif
2173} 2378}
2174 2379
2175/* called on EBADF to verify fds */ 2380/* called on EBADF to verify fds */
2176noinline ecb_cold 2381ecb_noinline ecb_cold
2177static void 2382static void
2178fd_ebadf (EV_P) 2383fd_ebadf (EV_P)
2179{ 2384{
2180 int fd; 2385 int fd;
2181 2386
… …
2184 if (!fd_valid (fd) && errno == EBADF) 2389 if (!fd_valid (fd) && errno == EBADF)
2185 fd_kill (EV_A_ fd); 2390 fd_kill (EV_A_ fd);
2186} 2391}
2187 2392
2188/* 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 */
2189noinline ecb_cold 2394ecb_noinline ecb_cold
2190static void 2395static void
2191fd_enomem (EV_P) 2396fd_enomem (EV_P)
2192{ 2397{
2193 int fd; 2398 int fd;
2194 2399
… …
2199 break; 2404 break;
2200 } 2405 }
2201} 2406}
2202 2407
2203/* 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 */
2204noinline 2409ecb_noinline
2205static void 2410static void
2206fd_rearm_all (EV_P) 2411fd_rearm_all (EV_P)
2207{ 2412{
2208 int fd; 2413 int fd;
2209 2414
… …
2263 ev_tstamp minat; 2468 ev_tstamp minat;
2264 ANHE *minpos; 2469 ANHE *minpos;
2265 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2470 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2266 2471
2267 /* find minimum child */ 2472 /* find minimum child */
2268 if (expect_true (pos + DHEAP - 1 < E)) 2473 if (ecb_expect_true (pos + DHEAP - 1 < E))
2269 { 2474 {
2270 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2475 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2271 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));
2272 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));
2273 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));
2274 } 2479 }
2275 else if (pos < E) 2480 else if (pos < E)
2276 { 2481 {
2277 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2482 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2278 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));
2279 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));
2280 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));
2281 } 2486 }
2282 else 2487 else
2283 break; 2488 break;
2284 2489
2285 if (ANHE_at (he) <= minat) 2490 if (ANHE_at (he) <= minat)
… …
2293 2498
2294 heap [k] = he; 2499 heap [k] = he;
2295 ev_active (ANHE_w (he)) = k; 2500 ev_active (ANHE_w (he)) = k;
2296} 2501}
2297 2502
2298#else /* 4HEAP */ 2503#else /* not 4HEAP */
2299 2504
2300#define HEAP0 1 2505#define HEAP0 1
2301#define HPARENT(k) ((k) >> 1) 2506#define HPARENT(k) ((k) >> 1)
2302#define UPHEAP_DONE(p,k) (!(p)) 2507#define UPHEAP_DONE(p,k) (!(p))
2303 2508
… …
2375 upheap (heap, i + HEAP0); 2580 upheap (heap, i + HEAP0);
2376} 2581}
2377 2582
2378/*****************************************************************************/ 2583/*****************************************************************************/
2379 2584
2380/* associate signal watchers to a signal signal */ 2585/* associate signal watchers to a signal */
2381typedef struct 2586typedef struct
2382{ 2587{
2383 EV_ATOMIC_T pending; 2588 EV_ATOMIC_T pending;
2384#if EV_MULTIPLICITY 2589#if EV_MULTIPLICITY
2385 EV_P; 2590 EV_P;
… …
2391 2596
2392/*****************************************************************************/ 2597/*****************************************************************************/
2393 2598
2394#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2599#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2395 2600
2396noinline ecb_cold 2601ecb_noinline ecb_cold
2397static void 2602static void
2398evpipe_init (EV_P) 2603evpipe_init (EV_P)
2399{ 2604{
2400 if (!ev_is_active (&pipe_w)) 2605 if (!ev_is_active (&pipe_w))
2401 { 2606 {
… …
2442inline_speed void 2647inline_speed void
2443evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2648evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2444{ 2649{
2445 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 */
2446 2651
2447 if (expect_true (*flag)) 2652 if (ecb_expect_true (*flag))
2448 return; 2653 return;
2449 2654
2450 *flag = 1; 2655 *flag = 1;
2451 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 */
2452 2657
… …
2473#endif 2678#endif
2474 { 2679 {
2475#ifdef _WIN32 2680#ifdef _WIN32
2476 WSABUF buf; 2681 WSABUF buf;
2477 DWORD sent; 2682 DWORD sent;
2478 buf.buf = &buf; 2683 buf.buf = (char *)&buf;
2479 buf.len = 1; 2684 buf.len = 1;
2480 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);
2481#else 2686#else
2482 write (evpipe [1], &(evpipe [1]), 1); 2687 write (evpipe [1], &(evpipe [1]), 1);
2483#endif 2688#endif
… …
2529 sig_pending = 0; 2734 sig_pending = 0;
2530 2735
2531 ECB_MEMORY_FENCE; 2736 ECB_MEMORY_FENCE;
2532 2737
2533 for (i = EV_NSIG - 1; i--; ) 2738 for (i = EV_NSIG - 1; i--; )
2534 if (expect_false (signals [i].pending)) 2739 if (ecb_expect_false (signals [i].pending))
2535 ev_feed_signal_event (EV_A_ i + 1); 2740 ev_feed_signal_event (EV_A_ i + 1);
2536 } 2741 }
2537#endif 2742#endif
2538 2743
2539#if EV_ASYNC_ENABLE 2744#if EV_ASYNC_ENABLE
… …
2555} 2760}
2556 2761
2557/*****************************************************************************/ 2762/*****************************************************************************/
2558 2763
2559void 2764void
2560ev_feed_signal (int signum) EV_THROW 2765ev_feed_signal (int signum) EV_NOEXCEPT
2561{ 2766{
2562#if EV_MULTIPLICITY 2767#if EV_MULTIPLICITY
2563 EV_P; 2768 EV_P;
2564 ECB_MEMORY_FENCE_ACQUIRE; 2769 ECB_MEMORY_FENCE_ACQUIRE;
2565 EV_A = signals [signum - 1].loop; 2770 EV_A = signals [signum - 1].loop;
… …
2580#endif 2785#endif
2581 2786
2582 ev_feed_signal (signum); 2787 ev_feed_signal (signum);
2583} 2788}
2584 2789
2585noinline 2790ecb_noinline
2586void 2791void
2587ev_feed_signal_event (EV_P_ int signum) EV_THROW 2792ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2588{ 2793{
2589 WL w; 2794 WL w;
2590 2795
2591 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2796 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2592 return; 2797 return;
2593 2798
2594 --signum; 2799 --signum;
2595 2800
2596#if EV_MULTIPLICITY 2801#if EV_MULTIPLICITY
2597 /* 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 */
2598 /* or, likely more useful, feeding a signal nobody is waiting for */ 2803 /* or, likely more useful, feeding a signal nobody is waiting for */
2599 2804
2600 if (expect_false (signals [signum].loop != EV_A)) 2805 if (ecb_expect_false (signals [signum].loop != EV_A))
2601 return; 2806 return;
2602#endif 2807#endif
2603 2808
2604 signals [signum].pending = 0; 2809 signals [signum].pending = 0;
2605 ECB_MEMORY_FENCE_RELEASE; 2810 ECB_MEMORY_FENCE_RELEASE;
… …
2689 2894
2690#endif 2895#endif
2691 2896
2692/*****************************************************************************/ 2897/*****************************************************************************/
2693 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
2694#if EV_USE_IOCP 2951#if EV_USE_IOCP
2695# include "ev_iocp.c" 2952# include "ev_iocp.c"
2696#endif 2953#endif
2697#if EV_USE_PORT 2954#if EV_USE_PORT
2698# include "ev_port.c" 2955# include "ev_port.c"
… …
2701# include "ev_kqueue.c" 2958# include "ev_kqueue.c"
2702#endif 2959#endif
2703#if EV_USE_EPOLL 2960#if EV_USE_EPOLL
2704# include "ev_epoll.c" 2961# include "ev_epoll.c"
2705#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
2706#if EV_USE_POLL 2969#if EV_USE_POLL
2707# include "ev_poll.c" 2970# include "ev_poll.c"
2708#endif 2971#endif
2709#if EV_USE_SELECT 2972#if EV_USE_SELECT
2710# include "ev_select.c" 2973# include "ev_select.c"
2711#endif 2974#endif
2712 2975
2713ecb_cold int 2976ecb_cold int
2714ev_version_major (void) EV_THROW 2977ev_version_major (void) EV_NOEXCEPT
2715{ 2978{
2716 return EV_VERSION_MAJOR; 2979 return EV_VERSION_MAJOR;
2717} 2980}
2718 2981
2719ecb_cold int 2982ecb_cold int
2720ev_version_minor (void) EV_THROW 2983ev_version_minor (void) EV_NOEXCEPT
2721{ 2984{
2722 return EV_VERSION_MINOR; 2985 return EV_VERSION_MINOR;
2723} 2986}
2724 2987
2725/* 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 */
… …
2734#endif 2997#endif
2735} 2998}
2736 2999
2737ecb_cold 3000ecb_cold
2738unsigned int 3001unsigned int
2739ev_supported_backends (void) EV_THROW 3002ev_supported_backends (void) EV_NOEXCEPT
2740{ 3003{
2741 unsigned int flags = 0; 3004 unsigned int flags = 0;
2742 3005
2743 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3006 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2744 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3007 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2745 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3008 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2746 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3009 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2747 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3010 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2748 3011 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3012 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3013
2749 return flags; 3014 return flags;
2750} 3015}
2751 3016
2752ecb_cold 3017ecb_cold
2753unsigned int 3018unsigned int
2754ev_recommended_backends (void) EV_THROW 3019ev_recommended_backends (void) EV_NOEXCEPT
2755{ 3020{
2756 unsigned int flags = ev_supported_backends (); 3021 unsigned int flags = ev_supported_backends ();
2757 3022
2758#ifndef __NetBSD__ 3023#ifndef __NetBSD__
2759 /* kqueue is borked on everything but netbsd apparently */ 3024 /* kqueue is borked on everything but netbsd apparently */
… …
2767#endif 3032#endif
2768#ifdef __FreeBSD__ 3033#ifdef __FreeBSD__
2769 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) */
2770#endif 3035#endif
2771 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
2772 return flags; 3046 return flags;
2773} 3047}
2774 3048
2775ecb_cold 3049ecb_cold
2776unsigned int 3050unsigned int
2777ev_embeddable_backends (void) EV_THROW 3051ev_embeddable_backends (void) EV_NOEXCEPT
2778{ 3052{
2779 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3053 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2780 3054
2781 /* 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 */
2782 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 */
2783 flags &= ~EVBACKEND_EPOLL; 3057 flags &= ~EVBACKEND_EPOLL;
2784 3058
3059 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3060
2785 return flags; 3061 return flags;
2786} 3062}
2787 3063
2788unsigned int 3064unsigned int
2789ev_backend (EV_P) EV_THROW 3065ev_backend (EV_P) EV_NOEXCEPT
2790{ 3066{
2791 return backend; 3067 return backend;
2792} 3068}
2793 3069
2794#if EV_FEATURE_API 3070#if EV_FEATURE_API
2795unsigned int 3071unsigned int
2796ev_iteration (EV_P) EV_THROW 3072ev_iteration (EV_P) EV_NOEXCEPT
2797{ 3073{
2798 return loop_count; 3074 return loop_count;
2799} 3075}
2800 3076
2801unsigned int 3077unsigned int
2802ev_depth (EV_P) EV_THROW 3078ev_depth (EV_P) EV_NOEXCEPT
2803{ 3079{
2804 return loop_depth; 3080 return loop_depth;
2805} 3081}
2806 3082
2807void 3083void
2808ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3084ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2809{ 3085{
2810 io_blocktime = interval; 3086 io_blocktime = interval;
2811} 3087}
2812 3088
2813void 3089void
2814ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3090ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2815{ 3091{
2816 timeout_blocktime = interval; 3092 timeout_blocktime = interval;
2817} 3093}
2818 3094
2819void 3095void
2820ev_set_userdata (EV_P_ void *data) EV_THROW 3096ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2821{ 3097{
2822 userdata = data; 3098 userdata = data;
2823} 3099}
2824 3100
2825void * 3101void *
2826ev_userdata (EV_P) EV_THROW 3102ev_userdata (EV_P) EV_NOEXCEPT
2827{ 3103{
2828 return userdata; 3104 return userdata;
2829} 3105}
2830 3106
2831void 3107void
2832ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3108ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2833{ 3109{
2834 invoke_cb = invoke_pending_cb; 3110 invoke_cb = invoke_pending_cb;
2835} 3111}
2836 3112
2837void 3113void
2838ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3114ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2839{ 3115{
2840 release_cb = release; 3116 release_cb = release;
2841 acquire_cb = acquire; 3117 acquire_cb = acquire;
2842} 3118}
2843#endif 3119#endif
2844 3120
2845/* initialise a loop structure, must be zero-initialised */ 3121/* initialise a loop structure, must be zero-initialised */
2846noinline ecb_cold 3122ecb_noinline ecb_cold
2847static void 3123static void
2848loop_init (EV_P_ unsigned int flags) EV_THROW 3124loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2849{ 3125{
2850 if (!backend) 3126 if (!backend)
2851 { 3127 {
2852 origflags = flags; 3128 origflags = flags;
2853 3129
… …
2906 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3182 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2907#endif 3183#endif
2908#if EV_USE_SIGNALFD 3184#if EV_USE_SIGNALFD
2909 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3185 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2910#endif 3186#endif
3187#if EV_USE_TIMERFD
3188 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3189#endif
2911 3190
2912 if (!(flags & EVBACKEND_MASK)) 3191 if (!(flags & EVBACKEND_MASK))
2913 flags |= ev_recommended_backends (); 3192 flags |= ev_recommended_backends ();
2914 3193
2915#if EV_USE_IOCP 3194#if EV_USE_IOCP
2916 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3195 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2917#endif 3196#endif
2918#if EV_USE_PORT 3197#if EV_USE_PORT
2919 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3198 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2920#endif 3199#endif
2921#if EV_USE_KQUEUE 3200#if EV_USE_KQUEUE
2922 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3201 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3202#endif
3203#if EV_USE_IOURING
3204 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3205#endif
3206#if EV_USE_LINUXAIO
3207 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2923#endif 3208#endif
2924#if EV_USE_EPOLL 3209#if EV_USE_EPOLL
2925 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3210 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2926#endif 3211#endif
2927#if EV_USE_POLL 3212#if EV_USE_POLL
2928 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3213 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2929#endif 3214#endif
2930#if EV_USE_SELECT 3215#if EV_USE_SELECT
2931 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3216 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2932#endif 3217#endif
2933 3218
2934 ev_prepare_init (&pending_w, pendingcb); 3219 ev_prepare_init (&pending_w, pendingcb);
2935 3220
2936#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3221#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2953 return; 3238 return;
2954#endif 3239#endif
2955 3240
2956#if EV_CLEANUP_ENABLE 3241#if EV_CLEANUP_ENABLE
2957 /* queue cleanup watchers (and execute them) */ 3242 /* queue cleanup watchers (and execute them) */
2958 if (expect_false (cleanupcnt)) 3243 if (ecb_expect_false (cleanupcnt))
2959 { 3244 {
2960 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3245 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2961 EV_INVOKE_PENDING; 3246 EV_INVOKE_PENDING;
2962 } 3247 }
2963#endif 3248#endif
… …
2982#if EV_USE_SIGNALFD 3267#if EV_USE_SIGNALFD
2983 if (ev_is_active (&sigfd_w)) 3268 if (ev_is_active (&sigfd_w))
2984 close (sigfd); 3269 close (sigfd);
2985#endif 3270#endif
2986 3271
3272#if EV_USE_TIMERFD
3273 if (ev_is_active (&timerfd_w))
3274 close (timerfd);
3275#endif
3276
2987#if EV_USE_INOTIFY 3277#if EV_USE_INOTIFY
2988 if (fs_fd >= 0) 3278 if (fs_fd >= 0)
2989 close (fs_fd); 3279 close (fs_fd);
2990#endif 3280#endif
2991 3281
2992 if (backend_fd >= 0) 3282 if (backend_fd >= 0)
2993 close (backend_fd); 3283 close (backend_fd);
2994 3284
2995#if EV_USE_IOCP 3285#if EV_USE_IOCP
2996 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3286 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2997#endif 3287#endif
2998#if EV_USE_PORT 3288#if EV_USE_PORT
2999 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3289 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3000#endif 3290#endif
3001#if EV_USE_KQUEUE 3291#if EV_USE_KQUEUE
3002 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3292 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3293#endif
3294#if EV_USE_IOURING
3295 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3296#endif
3297#if EV_USE_LINUXAIO
3298 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3003#endif 3299#endif
3004#if EV_USE_EPOLL 3300#if EV_USE_EPOLL
3005 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3301 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3006#endif 3302#endif
3007#if EV_USE_POLL 3303#if EV_USE_POLL
3008 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3304 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3009#endif 3305#endif
3010#if EV_USE_SELECT 3306#if EV_USE_SELECT
3011 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3307 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3012#endif 3308#endif
3013 3309
3014 for (i = NUMPRI; i--; ) 3310 for (i = NUMPRI; i--; )
3015 { 3311 {
3016 array_free (pending, [i]); 3312 array_free (pending, [i]);
… …
3058 3354
3059inline_size void 3355inline_size void
3060loop_fork (EV_P) 3356loop_fork (EV_P)
3061{ 3357{
3062#if EV_USE_PORT 3358#if EV_USE_PORT
3063 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3359 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3064#endif 3360#endif
3065#if EV_USE_KQUEUE 3361#if EV_USE_KQUEUE
3066 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3362 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3363#endif
3364#if EV_USE_IOURING
3365 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3366#endif
3367#if EV_USE_LINUXAIO
3368 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3067#endif 3369#endif
3068#if EV_USE_EPOLL 3370#if EV_USE_EPOLL
3069 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3371 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3070#endif 3372#endif
3071#if EV_USE_INOTIFY 3373#if EV_USE_INOTIFY
3072 infy_fork (EV_A); 3374 infy_fork (EV_A);
3073#endif 3375#endif
3074 3376
3377 if (postfork != 2)
3378 {
3379 #if EV_USE_SIGNALFD
3380 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3381 #endif
3382
3383 #if EV_USE_TIMERFD
3384 if (ev_is_active (&timerfd_w))
3385 {
3386 ev_ref (EV_A);
3387 ev_io_stop (EV_A_ &timerfd_w);
3388
3389 close (timerfd);
3390 timerfd = -2;
3391
3392 evtimerfd_init (EV_A);
3393 /* reschedule periodics, in case we missed something */
3394 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3395 }
3396 #endif
3397
3075#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3398 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3076 if (ev_is_active (&pipe_w) && postfork != 2) 3399 if (ev_is_active (&pipe_w))
3077 { 3400 {
3078 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3401 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3079 3402
3080 ev_ref (EV_A); 3403 ev_ref (EV_A);
3081 ev_io_stop (EV_A_ &pipe_w); 3404 ev_io_stop (EV_A_ &pipe_w);
3082 3405
3083 if (evpipe [0] >= 0) 3406 if (evpipe [0] >= 0)
3084 EV_WIN32_CLOSE_FD (evpipe [0]); 3407 EV_WIN32_CLOSE_FD (evpipe [0]);
3085 3408
3086 evpipe_init (EV_A); 3409 evpipe_init (EV_A);
3087 /* iterate over everything, in case we missed something before */ 3410 /* iterate over everything, in case we missed something before */
3088 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3411 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3412 }
3413 #endif
3089 } 3414 }
3090#endif
3091 3415
3092 postfork = 0; 3416 postfork = 0;
3093} 3417}
3094 3418
3095#if EV_MULTIPLICITY 3419#if EV_MULTIPLICITY
3096 3420
3097ecb_cold 3421ecb_cold
3098struct ev_loop * 3422struct ev_loop *
3099ev_loop_new (unsigned int flags) EV_THROW 3423ev_loop_new (unsigned int flags) EV_NOEXCEPT
3100{ 3424{
3101 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3425 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3102 3426
3103 memset (EV_A, 0, sizeof (struct ev_loop)); 3427 memset (EV_A, 0, sizeof (struct ev_loop));
3104 loop_init (EV_A_ flags); 3428 loop_init (EV_A_ flags);
… …
3111} 3435}
3112 3436
3113#endif /* multiplicity */ 3437#endif /* multiplicity */
3114 3438
3115#if EV_VERIFY 3439#if EV_VERIFY
3116noinline ecb_cold 3440ecb_noinline ecb_cold
3117static void 3441static void
3118verify_watcher (EV_P_ W w) 3442verify_watcher (EV_P_ W w)
3119{ 3443{
3120 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3444 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3121 3445
3122 if (w->pending) 3446 if (w->pending)
3123 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3447 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3124} 3448}
3125 3449
3126noinline ecb_cold 3450ecb_noinline ecb_cold
3127static void 3451static void
3128verify_heap (EV_P_ ANHE *heap, int N) 3452verify_heap (EV_P_ ANHE *heap, int N)
3129{ 3453{
3130 int i; 3454 int i;
3131 3455
… …
3137 3461
3138 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3462 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3139 } 3463 }
3140} 3464}
3141 3465
3142noinline ecb_cold 3466ecb_noinline ecb_cold
3143static void 3467static void
3144array_verify (EV_P_ W *ws, int cnt) 3468array_verify (EV_P_ W *ws, int cnt)
3145{ 3469{
3146 while (cnt--) 3470 while (cnt--)
3147 { 3471 {
… …
3151} 3475}
3152#endif 3476#endif
3153 3477
3154#if EV_FEATURE_API 3478#if EV_FEATURE_API
3155void ecb_cold 3479void ecb_cold
3156ev_verify (EV_P) EV_THROW 3480ev_verify (EV_P) EV_NOEXCEPT
3157{ 3481{
3158#if EV_VERIFY 3482#if EV_VERIFY
3159 int i; 3483 int i;
3160 WL w, w2; 3484 WL w, w2;
3161 3485
… …
3242ecb_cold 3566ecb_cold
3243struct ev_loop * 3567struct ev_loop *
3244#else 3568#else
3245int 3569int
3246#endif 3570#endif
3247ev_default_loop (unsigned int flags) EV_THROW 3571ev_default_loop (unsigned int flags) EV_NOEXCEPT
3248{ 3572{
3249 if (!ev_default_loop_ptr) 3573 if (!ev_default_loop_ptr)
3250 { 3574 {
3251#if EV_MULTIPLICITY 3575#if EV_MULTIPLICITY
3252 EV_P = ev_default_loop_ptr = &default_loop_struct; 3576 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3271 3595
3272 return ev_default_loop_ptr; 3596 return ev_default_loop_ptr;
3273} 3597}
3274 3598
3275void 3599void
3276ev_loop_fork (EV_P) EV_THROW 3600ev_loop_fork (EV_P) EV_NOEXCEPT
3277{ 3601{
3278 postfork = 1; 3602 postfork = 1;
3279} 3603}
3280 3604
3281/*****************************************************************************/ 3605/*****************************************************************************/
… …
3285{ 3609{
3286 EV_CB_INVOKE ((W)w, revents); 3610 EV_CB_INVOKE ((W)w, revents);
3287} 3611}
3288 3612
3289unsigned int 3613unsigned int
3290ev_pending_count (EV_P) EV_THROW 3614ev_pending_count (EV_P) EV_NOEXCEPT
3291{ 3615{
3292 int pri; 3616 int pri;
3293 unsigned int count = 0; 3617 unsigned int count = 0;
3294 3618
3295 for (pri = NUMPRI; pri--; ) 3619 for (pri = NUMPRI; pri--; )
3296 count += pendingcnt [pri]; 3620 count += pendingcnt [pri];
3297 3621
3298 return count; 3622 return count;
3299} 3623}
3300 3624
3301noinline 3625ecb_noinline
3302void 3626void
3303ev_invoke_pending (EV_P) 3627ev_invoke_pending (EV_P)
3304{ 3628{
3305 pendingpri = NUMPRI; 3629 pendingpri = NUMPRI;
3306 3630
3307 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3631 do
3308 { 3632 {
3309 --pendingpri; 3633 --pendingpri;
3310 3634
3635 /* pendingpri possibly gets modified in the inner loop */
3311 while (pendingcnt [pendingpri]) 3636 while (pendingcnt [pendingpri])
3312 { 3637 {
3313 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3638 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3314 3639
3315 p->w->pending = 0; 3640 p->w->pending = 0;
3316 EV_CB_INVOKE (p->w, p->events); 3641 EV_CB_INVOKE (p->w, p->events);
3317 EV_FREQUENT_CHECK; 3642 EV_FREQUENT_CHECK;
3318 } 3643 }
3319 } 3644 }
3645 while (pendingpri);
3320} 3646}
3321 3647
3322#if EV_IDLE_ENABLE 3648#if EV_IDLE_ENABLE
3323/* make idle watchers pending. this handles the "call-idle */ 3649/* make idle watchers pending. this handles the "call-idle */
3324/* only when higher priorities are idle" logic */ 3650/* only when higher priorities are idle" logic */
3325inline_size void 3651inline_size void
3326idle_reify (EV_P) 3652idle_reify (EV_P)
3327{ 3653{
3328 if (expect_false (idleall)) 3654 if (ecb_expect_false (idleall))
3329 { 3655 {
3330 int pri; 3656 int pri;
3331 3657
3332 for (pri = NUMPRI; pri--; ) 3658 for (pri = NUMPRI; pri--; )
3333 { 3659 {
… …
3363 { 3689 {
3364 ev_at (w) += w->repeat; 3690 ev_at (w) += w->repeat;
3365 if (ev_at (w) < mn_now) 3691 if (ev_at (w) < mn_now)
3366 ev_at (w) = mn_now; 3692 ev_at (w) = mn_now;
3367 3693
3368 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3694 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3369 3695
3370 ANHE_at_cache (timers [HEAP0]); 3696 ANHE_at_cache (timers [HEAP0]);
3371 downheap (timers, timercnt, HEAP0); 3697 downheap (timers, timercnt, HEAP0);
3372 } 3698 }
3373 else 3699 else
… …
3382 } 3708 }
3383} 3709}
3384 3710
3385#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3386 3712
3387noinline 3713ecb_noinline
3388static void 3714static void
3389periodic_recalc (EV_P_ ev_periodic *w) 3715periodic_recalc (EV_P_ ev_periodic *w)
3390{ 3716{
3391 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3717 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3392 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3718 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3395 while (at <= ev_rt_now) 3721 while (at <= ev_rt_now)
3396 { 3722 {
3397 ev_tstamp nat = at + w->interval; 3723 ev_tstamp nat = at + w->interval;
3398 3724
3399 /* when resolution fails us, we use ev_rt_now */ 3725 /* when resolution fails us, we use ev_rt_now */
3400 if (expect_false (nat == at)) 3726 if (ecb_expect_false (nat == at))
3401 { 3727 {
3402 at = ev_rt_now; 3728 at = ev_rt_now;
3403 break; 3729 break;
3404 } 3730 }
3405 3731
… …
3451 } 3777 }
3452} 3778}
3453 3779
3454/* simply recalculate all periodics */ 3780/* simply recalculate all periodics */
3455/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3781/* TODO: maybe ensure that at least one event happens when jumping forward? */
3456noinline ecb_cold 3782ecb_noinline ecb_cold
3457static void 3783static void
3458periodics_reschedule (EV_P) 3784periodics_reschedule (EV_P)
3459{ 3785{
3460 int i; 3786 int i;
3461 3787
… …
3475 reheap (periodics, periodiccnt); 3801 reheap (periodics, periodiccnt);
3476} 3802}
3477#endif 3803#endif
3478 3804
3479/* adjust all timers by a given offset */ 3805/* adjust all timers by a given offset */
3480noinline ecb_cold 3806ecb_noinline ecb_cold
3481static void 3807static void
3482timers_reschedule (EV_P_ ev_tstamp adjust) 3808timers_reschedule (EV_P_ ev_tstamp adjust)
3483{ 3809{
3484 int i; 3810 int i;
3485 3811
… …
3495/* also detect if there was a timejump, and act accordingly */ 3821/* also detect if there was a timejump, and act accordingly */
3496inline_speed void 3822inline_speed void
3497time_update (EV_P_ ev_tstamp max_block) 3823time_update (EV_P_ ev_tstamp max_block)
3498{ 3824{
3499#if EV_USE_MONOTONIC 3825#if EV_USE_MONOTONIC
3500 if (expect_true (have_monotonic)) 3826 if (ecb_expect_true (have_monotonic))
3501 { 3827 {
3502 int i; 3828 int i;
3503 ev_tstamp odiff = rtmn_diff; 3829 ev_tstamp odiff = rtmn_diff;
3504 3830
3505 mn_now = get_clock (); 3831 mn_now = get_clock ();
3506 3832
3507 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3833 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3508 /* interpolate in the meantime */ 3834 /* interpolate in the meantime */
3509 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3835 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3510 { 3836 {
3511 ev_rt_now = rtmn_diff + mn_now; 3837 ev_rt_now = rtmn_diff + mn_now;
3512 return; 3838 return;
3513 } 3839 }
3514 3840
… …
3528 ev_tstamp diff; 3854 ev_tstamp diff;
3529 rtmn_diff = ev_rt_now - mn_now; 3855 rtmn_diff = ev_rt_now - mn_now;
3530 3856
3531 diff = odiff - rtmn_diff; 3857 diff = odiff - rtmn_diff;
3532 3858
3533 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3859 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3534 return; /* all is well */ 3860 return; /* all is well */
3535 3861
3536 ev_rt_now = ev_time (); 3862 ev_rt_now = ev_time ();
3537 mn_now = get_clock (); 3863 mn_now = get_clock ();
3538 now_floor = mn_now; 3864 now_floor = mn_now;
… …
3547 else 3873 else
3548#endif 3874#endif
3549 { 3875 {
3550 ev_rt_now = ev_time (); 3876 ev_rt_now = ev_time ();
3551 3877
3552 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3878 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3553 { 3879 {
3554 /* adjust timers. this is easy, as the offset is the same for all of them */ 3880 /* adjust timers. this is easy, as the offset is the same for all of them */
3555 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3881 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3556#if EV_PERIODIC_ENABLE 3882#if EV_PERIODIC_ENABLE
3557 periodics_reschedule (EV_A); 3883 periodics_reschedule (EV_A);
… …
3580#if EV_VERIFY >= 2 3906#if EV_VERIFY >= 2
3581 ev_verify (EV_A); 3907 ev_verify (EV_A);
3582#endif 3908#endif
3583 3909
3584#ifndef _WIN32 3910#ifndef _WIN32
3585 if (expect_false (curpid)) /* penalise the forking check even more */ 3911 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3586 if (expect_false (getpid () != curpid)) 3912 if (ecb_expect_false (getpid () != curpid))
3587 { 3913 {
3588 curpid = getpid (); 3914 curpid = getpid ();
3589 postfork = 1; 3915 postfork = 1;
3590 } 3916 }
3591#endif 3917#endif
3592 3918
3593#if EV_FORK_ENABLE 3919#if EV_FORK_ENABLE
3594 /* we might have forked, so queue fork handlers */ 3920 /* we might have forked, so queue fork handlers */
3595 if (expect_false (postfork)) 3921 if (ecb_expect_false (postfork))
3596 if (forkcnt) 3922 if (forkcnt)
3597 { 3923 {
3598 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3924 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3599 EV_INVOKE_PENDING; 3925 EV_INVOKE_PENDING;
3600 } 3926 }
3601#endif 3927#endif
3602 3928
3603#if EV_PREPARE_ENABLE 3929#if EV_PREPARE_ENABLE
3604 /* queue prepare watchers (and execute them) */ 3930 /* queue prepare watchers (and execute them) */
3605 if (expect_false (preparecnt)) 3931 if (ecb_expect_false (preparecnt))
3606 { 3932 {
3607 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3933 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3608 EV_INVOKE_PENDING; 3934 EV_INVOKE_PENDING;
3609 } 3935 }
3610#endif 3936#endif
3611 3937
3612 if (expect_false (loop_done)) 3938 if (ecb_expect_false (loop_done))
3613 break; 3939 break;
3614 3940
3615 /* we might have forked, so reify kernel state if necessary */ 3941 /* we might have forked, so reify kernel state if necessary */
3616 if (expect_false (postfork)) 3942 if (ecb_expect_false (postfork))
3617 loop_fork (EV_A); 3943 loop_fork (EV_A);
3618 3944
3619 /* update fd-related kernel structures */ 3945 /* update fd-related kernel structures */
3620 fd_reify (EV_A); 3946 fd_reify (EV_A);
3621 3947
… …
3626 3952
3627 /* remember old timestamp for io_blocktime calculation */ 3953 /* remember old timestamp for io_blocktime calculation */
3628 ev_tstamp prev_mn_now = mn_now; 3954 ev_tstamp prev_mn_now = mn_now;
3629 3955
3630 /* update time to cancel out callback processing overhead */ 3956 /* update time to cancel out callback processing overhead */
3631 time_update (EV_A_ 1e100); 3957 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3632 3958
3633 /* from now on, we want a pipe-wake-up */ 3959 /* from now on, we want a pipe-wake-up */
3634 pipe_write_wanted = 1; 3960 pipe_write_wanted = 1;
3635 3961
3636 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3962 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3637 3963
3638 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3964 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3639 { 3965 {
3640 waittime = MAX_BLOCKTIME; 3966 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3641 3967
3642 if (timercnt) 3968 if (timercnt)
3643 { 3969 {
3644 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3970 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3645 if (waittime > to) waittime = to; 3971 if (waittime > to) waittime = to;
… …
3652 if (waittime > to) waittime = to; 3978 if (waittime > to) waittime = to;
3653 } 3979 }
3654#endif 3980#endif
3655 3981
3656 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3982 /* don't let timeouts decrease the waittime below timeout_blocktime */
3657 if (expect_false (waittime < timeout_blocktime)) 3983 if (ecb_expect_false (waittime < timeout_blocktime))
3658 waittime = timeout_blocktime; 3984 waittime = timeout_blocktime;
3659 3985
3660 /* at this point, we NEED to wait, so we have to ensure */ 3986 /* now there are two more special cases left, either we have
3661 /* to pass a minimum nonzero value to the backend */ 3987 * already-expired timers, so we should not sleep, or we have timers
3988 * that expire very soon, in which case we need to wait for a minimum
3989 * amount of time for some event loop backends.
3990 */
3662 if (expect_false (waittime < backend_mintime)) 3991 if (ecb_expect_false (waittime < backend_mintime))
3992 waittime = waittime <= EV_TS_CONST (0.)
3993 ? EV_TS_CONST (0.)
3663 waittime = backend_mintime; 3994 : backend_mintime;
3664 3995
3665 /* extra check because io_blocktime is commonly 0 */ 3996 /* extra check because io_blocktime is commonly 0 */
3666 if (expect_false (io_blocktime)) 3997 if (ecb_expect_false (io_blocktime))
3667 { 3998 {
3668 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3999 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3669 4000
3670 if (sleeptime > waittime - backend_mintime) 4001 if (sleeptime > waittime - backend_mintime)
3671 sleeptime = waittime - backend_mintime; 4002 sleeptime = waittime - backend_mintime;
3672 4003
3673 if (expect_true (sleeptime > 0.)) 4004 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3674 { 4005 {
3675 ev_sleep (sleeptime); 4006 ev_sleep (sleeptime);
3676 waittime -= sleeptime; 4007 waittime -= sleeptime;
3677 } 4008 }
3678 } 4009 }
… …
3692 { 4023 {
3693 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4024 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3694 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4025 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3695 } 4026 }
3696 4027
3697
3698 /* update ev_rt_now, do magic */ 4028 /* update ev_rt_now, do magic */
3699 time_update (EV_A_ waittime + sleeptime); 4029 time_update (EV_A_ waittime + sleeptime);
3700 } 4030 }
3701 4031
3702 /* queue pending timers and reschedule them */ 4032 /* queue pending timers and reschedule them */
… …
3710 idle_reify (EV_A); 4040 idle_reify (EV_A);
3711#endif 4041#endif
3712 4042
3713#if EV_CHECK_ENABLE 4043#if EV_CHECK_ENABLE
3714 /* queue check watchers, to be executed first */ 4044 /* queue check watchers, to be executed first */
3715 if (expect_false (checkcnt)) 4045 if (ecb_expect_false (checkcnt))
3716 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4046 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3717#endif 4047#endif
3718 4048
3719 EV_INVOKE_PENDING; 4049 EV_INVOKE_PENDING;
3720 } 4050 }
3721 while (expect_true ( 4051 while (ecb_expect_true (
3722 activecnt 4052 activecnt
3723 && !loop_done 4053 && !loop_done
3724 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4054 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3725 )); 4055 ));
3726 4056
… …
3733 4063
3734 return activecnt; 4064 return activecnt;
3735} 4065}
3736 4066
3737void 4067void
3738ev_break (EV_P_ int how) EV_THROW 4068ev_break (EV_P_ int how) EV_NOEXCEPT
3739{ 4069{
3740 loop_done = how; 4070 loop_done = how;
3741} 4071}
3742 4072
3743void 4073void
3744ev_ref (EV_P) EV_THROW 4074ev_ref (EV_P) EV_NOEXCEPT
3745{ 4075{
3746 ++activecnt; 4076 ++activecnt;
3747} 4077}
3748 4078
3749void 4079void
3750ev_unref (EV_P) EV_THROW 4080ev_unref (EV_P) EV_NOEXCEPT
3751{ 4081{
3752 --activecnt; 4082 --activecnt;
3753} 4083}
3754 4084
3755void 4085void
3756ev_now_update (EV_P) EV_THROW 4086ev_now_update (EV_P) EV_NOEXCEPT
3757{ 4087{
3758 time_update (EV_A_ 1e100); 4088 time_update (EV_A_ EV_TSTAMP_HUGE);
3759} 4089}
3760 4090
3761void 4091void
3762ev_suspend (EV_P) EV_THROW 4092ev_suspend (EV_P) EV_NOEXCEPT
3763{ 4093{
3764 ev_now_update (EV_A); 4094 ev_now_update (EV_A);
3765} 4095}
3766 4096
3767void 4097void
3768ev_resume (EV_P) EV_THROW 4098ev_resume (EV_P) EV_NOEXCEPT
3769{ 4099{
3770 ev_tstamp mn_prev = mn_now; 4100 ev_tstamp mn_prev = mn_now;
3771 4101
3772 ev_now_update (EV_A); 4102 ev_now_update (EV_A);
3773 timers_reschedule (EV_A_ mn_now - mn_prev); 4103 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3790inline_size void 4120inline_size void
3791wlist_del (WL *head, WL elem) 4121wlist_del (WL *head, WL elem)
3792{ 4122{
3793 while (*head) 4123 while (*head)
3794 { 4124 {
3795 if (expect_true (*head == elem)) 4125 if (ecb_expect_true (*head == elem))
3796 { 4126 {
3797 *head = elem->next; 4127 *head = elem->next;
3798 break; 4128 break;
3799 } 4129 }
3800 4130
… …
3812 w->pending = 0; 4142 w->pending = 0;
3813 } 4143 }
3814} 4144}
3815 4145
3816int 4146int
3817ev_clear_pending (EV_P_ void *w) EV_THROW 4147ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3818{ 4148{
3819 W w_ = (W)w; 4149 W w_ = (W)w;
3820 int pending = w_->pending; 4150 int pending = w_->pending;
3821 4151
3822 if (expect_true (pending)) 4152 if (ecb_expect_true (pending))
3823 { 4153 {
3824 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4154 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3825 p->w = (W)&pending_w; 4155 p->w = (W)&pending_w;
3826 w_->pending = 0; 4156 w_->pending = 0;
3827 return p->events; 4157 return p->events;
… …
3854 w->active = 0; 4184 w->active = 0;
3855} 4185}
3856 4186
3857/*****************************************************************************/ 4187/*****************************************************************************/
3858 4188
3859noinline 4189ecb_noinline
3860void 4190void
3861ev_io_start (EV_P_ ev_io *w) EV_THROW 4191ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3862{ 4192{
3863 int fd = w->fd; 4193 int fd = w->fd;
3864 4194
3865 if (expect_false (ev_is_active (w))) 4195 if (ecb_expect_false (ev_is_active (w)))
3866 return; 4196 return;
3867 4197
3868 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4198 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3869 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4199 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3870 4200
4201#if EV_VERIFY >= 2
4202 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4203#endif
3871 EV_FREQUENT_CHECK; 4204 EV_FREQUENT_CHECK;
3872 4205
3873 ev_start (EV_A_ (W)w, 1); 4206 ev_start (EV_A_ (W)w, 1);
3874 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4207 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3875 wlist_add (&anfds[fd].head, (WL)w); 4208 wlist_add (&anfds[fd].head, (WL)w);
3876 4209
3877 /* common bug, apparently */ 4210 /* common bug, apparently */
3878 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4211 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3879 4212
… …
3881 w->events &= ~EV__IOFDSET; 4214 w->events &= ~EV__IOFDSET;
3882 4215
3883 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3884} 4217}
3885 4218
3886noinline 4219ecb_noinline
3887void 4220void
3888ev_io_stop (EV_P_ ev_io *w) EV_THROW 4221ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3889{ 4222{
3890 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3891 if (expect_false (!ev_is_active (w))) 4224 if (ecb_expect_false (!ev_is_active (w)))
3892 return; 4225 return;
3893 4226
3894 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4227 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3895 4228
4229#if EV_VERIFY >= 2
4230 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4231#endif
3896 EV_FREQUENT_CHECK; 4232 EV_FREQUENT_CHECK;
3897 4233
3898 wlist_del (&anfds[w->fd].head, (WL)w); 4234 wlist_del (&anfds[w->fd].head, (WL)w);
3899 ev_stop (EV_A_ (W)w); 4235 ev_stop (EV_A_ (W)w);
3900 4236
3901 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4237 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3902 4238
3903 EV_FREQUENT_CHECK; 4239 EV_FREQUENT_CHECK;
3904} 4240}
3905 4241
3906noinline 4242ecb_noinline
3907void 4243void
3908ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4244ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3909{ 4245{
3910 if (expect_false (ev_is_active (w))) 4246 if (ecb_expect_false (ev_is_active (w)))
3911 return; 4247 return;
3912 4248
3913 ev_at (w) += mn_now; 4249 ev_at (w) += mn_now;
3914 4250
3915 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4251 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3916 4252
3917 EV_FREQUENT_CHECK; 4253 EV_FREQUENT_CHECK;
3918 4254
3919 ++timercnt; 4255 ++timercnt;
3920 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4256 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3921 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4257 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3922 ANHE_w (timers [ev_active (w)]) = (WT)w; 4258 ANHE_w (timers [ev_active (w)]) = (WT)w;
3923 ANHE_at_cache (timers [ev_active (w)]); 4259 ANHE_at_cache (timers [ev_active (w)]);
3924 upheap (timers, ev_active (w)); 4260 upheap (timers, ev_active (w));
3925 4261
3926 EV_FREQUENT_CHECK; 4262 EV_FREQUENT_CHECK;
3927 4263
3928 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4264 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3929} 4265}
3930 4266
3931noinline 4267ecb_noinline
3932void 4268void
3933ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4269ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3934{ 4270{
3935 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
3936 if (expect_false (!ev_is_active (w))) 4272 if (ecb_expect_false (!ev_is_active (w)))
3937 return; 4273 return;
3938 4274
3939 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3940 4276
3941 { 4277 {
… …
3943 4279
3944 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4280 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3945 4281
3946 --timercnt; 4282 --timercnt;
3947 4283
3948 if (expect_true (active < timercnt + HEAP0)) 4284 if (ecb_expect_true (active < timercnt + HEAP0))
3949 { 4285 {
3950 timers [active] = timers [timercnt + HEAP0]; 4286 timers [active] = timers [timercnt + HEAP0];
3951 adjustheap (timers, timercnt, active); 4287 adjustheap (timers, timercnt, active);
3952 } 4288 }
3953 } 4289 }
… …
3957 ev_stop (EV_A_ (W)w); 4293 ev_stop (EV_A_ (W)w);
3958 4294
3959 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3960} 4296}
3961 4297
3962noinline 4298ecb_noinline
3963void 4299void
3964ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4300ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3965{ 4301{
3966 EV_FREQUENT_CHECK; 4302 EV_FREQUENT_CHECK;
3967 4303
3968 clear_pending (EV_A_ (W)w); 4304 clear_pending (EV_A_ (W)w);
3969 4305
… …
3986 4322
3987 EV_FREQUENT_CHECK; 4323 EV_FREQUENT_CHECK;
3988} 4324}
3989 4325
3990ev_tstamp 4326ev_tstamp
3991ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4327ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3992{ 4328{
3993 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4329 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3994} 4330}
3995 4331
3996#if EV_PERIODIC_ENABLE 4332#if EV_PERIODIC_ENABLE
3997noinline 4333ecb_noinline
3998void 4334void
3999ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4335ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4000{ 4336{
4001 if (expect_false (ev_is_active (w))) 4337 if (ecb_expect_false (ev_is_active (w)))
4002 return; 4338 return;
4339
4340#if EV_USE_TIMERFD
4341 if (timerfd == -2)
4342 evtimerfd_init (EV_A);
4343#endif
4003 4344
4004 if (w->reschedule_cb) 4345 if (w->reschedule_cb)
4005 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4346 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4006 else if (w->interval) 4347 else if (w->interval)
4007 { 4348 {
… …
4013 4354
4014 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
4015 4356
4016 ++periodiccnt; 4357 ++periodiccnt;
4017 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4358 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4018 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4359 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4019 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4360 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4020 ANHE_at_cache (periodics [ev_active (w)]); 4361 ANHE_at_cache (periodics [ev_active (w)]);
4021 upheap (periodics, ev_active (w)); 4362 upheap (periodics, ev_active (w));
4022 4363
4023 EV_FREQUENT_CHECK; 4364 EV_FREQUENT_CHECK;
4024 4365
4025 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4366 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4026} 4367}
4027 4368
4028noinline 4369ecb_noinline
4029void 4370void
4030ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4371ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4031{ 4372{
4032 clear_pending (EV_A_ (W)w); 4373 clear_pending (EV_A_ (W)w);
4033 if (expect_false (!ev_is_active (w))) 4374 if (ecb_expect_false (!ev_is_active (w)))
4034 return; 4375 return;
4035 4376
4036 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
4037 4378
4038 { 4379 {
… …
4040 4381
4041 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4382 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4042 4383
4043 --periodiccnt; 4384 --periodiccnt;
4044 4385
4045 if (expect_true (active < periodiccnt + HEAP0)) 4386 if (ecb_expect_true (active < periodiccnt + HEAP0))
4046 { 4387 {
4047 periodics [active] = periodics [periodiccnt + HEAP0]; 4388 periodics [active] = periodics [periodiccnt + HEAP0];
4048 adjustheap (periodics, periodiccnt, active); 4389 adjustheap (periodics, periodiccnt, active);
4049 } 4390 }
4050 } 4391 }
… …
4052 ev_stop (EV_A_ (W)w); 4393 ev_stop (EV_A_ (W)w);
4053 4394
4054 EV_FREQUENT_CHECK; 4395 EV_FREQUENT_CHECK;
4055} 4396}
4056 4397
4057noinline 4398ecb_noinline
4058void 4399void
4059ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4400ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4060{ 4401{
4061 /* TODO: use adjustheap and recalculation */ 4402 /* TODO: use adjustheap and recalculation */
4062 ev_periodic_stop (EV_A_ w); 4403 ev_periodic_stop (EV_A_ w);
4063 ev_periodic_start (EV_A_ w); 4404 ev_periodic_start (EV_A_ w);
4064} 4405}
… …
4068# define SA_RESTART 0 4409# define SA_RESTART 0
4069#endif 4410#endif
4070 4411
4071#if EV_SIGNAL_ENABLE 4412#if EV_SIGNAL_ENABLE
4072 4413
4073noinline 4414ecb_noinline
4074void 4415void
4075ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4416ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4076{ 4417{
4077 if (expect_false (ev_is_active (w))) 4418 if (ecb_expect_false (ev_is_active (w)))
4078 return; 4419 return;
4079 4420
4080 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4421 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4081 4422
4082#if EV_MULTIPLICITY 4423#if EV_MULTIPLICITY
… …
4151 } 4492 }
4152 4493
4153 EV_FREQUENT_CHECK; 4494 EV_FREQUENT_CHECK;
4154} 4495}
4155 4496
4156noinline 4497ecb_noinline
4157void 4498void
4158ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4499ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4159{ 4500{
4160 clear_pending (EV_A_ (W)w); 4501 clear_pending (EV_A_ (W)w);
4161 if (expect_false (!ev_is_active (w))) 4502 if (ecb_expect_false (!ev_is_active (w)))
4162 return; 4503 return;
4163 4504
4164 EV_FREQUENT_CHECK; 4505 EV_FREQUENT_CHECK;
4165 4506
4166 wlist_del (&signals [w->signum - 1].head, (WL)w); 4507 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4194#endif 4535#endif
4195 4536
4196#if EV_CHILD_ENABLE 4537#if EV_CHILD_ENABLE
4197 4538
4198void 4539void
4199ev_child_start (EV_P_ ev_child *w) EV_THROW 4540ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4200{ 4541{
4201#if EV_MULTIPLICITY 4542#if EV_MULTIPLICITY
4202 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4543 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4203#endif 4544#endif
4204 if (expect_false (ev_is_active (w))) 4545 if (ecb_expect_false (ev_is_active (w)))
4205 return; 4546 return;
4206 4547
4207 EV_FREQUENT_CHECK; 4548 EV_FREQUENT_CHECK;
4208 4549
4209 ev_start (EV_A_ (W)w, 1); 4550 ev_start (EV_A_ (W)w, 1);
… …
4211 4552
4212 EV_FREQUENT_CHECK; 4553 EV_FREQUENT_CHECK;
4213} 4554}
4214 4555
4215void 4556void
4216ev_child_stop (EV_P_ ev_child *w) EV_THROW 4557ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4217{ 4558{
4218 clear_pending (EV_A_ (W)w); 4559 clear_pending (EV_A_ (W)w);
4219 if (expect_false (!ev_is_active (w))) 4560 if (ecb_expect_false (!ev_is_active (w)))
4220 return; 4561 return;
4221 4562
4222 EV_FREQUENT_CHECK; 4563 EV_FREQUENT_CHECK;
4223 4564
4224 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4565 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4238 4579
4239#define DEF_STAT_INTERVAL 5.0074891 4580#define DEF_STAT_INTERVAL 5.0074891
4240#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4581#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4241#define MIN_STAT_INTERVAL 0.1074891 4582#define MIN_STAT_INTERVAL 0.1074891
4242 4583
4243noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4584ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4244 4585
4245#if EV_USE_INOTIFY 4586#if EV_USE_INOTIFY
4246 4587
4247/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4588/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4248# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4589# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4249 4590
4250noinline 4591ecb_noinline
4251static void 4592static void
4252infy_add (EV_P_ ev_stat *w) 4593infy_add (EV_P_ ev_stat *w)
4253{ 4594{
4254 w->wd = inotify_add_watch (fs_fd, w->path, 4595 w->wd = inotify_add_watch (fs_fd, w->path,
4255 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4596 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4320 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4661 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4321 ev_timer_again (EV_A_ &w->timer); 4662 ev_timer_again (EV_A_ &w->timer);
4322 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4663 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4323} 4664}
4324 4665
4325noinline 4666ecb_noinline
4326static void 4667static void
4327infy_del (EV_P_ ev_stat *w) 4668infy_del (EV_P_ ev_stat *w)
4328{ 4669{
4329 int slot; 4670 int slot;
4330 int wd = w->wd; 4671 int wd = w->wd;
… …
4338 4679
4339 /* remove this watcher, if others are watching it, they will rearm */ 4680 /* remove this watcher, if others are watching it, they will rearm */
4340 inotify_rm_watch (fs_fd, wd); 4681 inotify_rm_watch (fs_fd, wd);
4341} 4682}
4342 4683
4343noinline 4684ecb_noinline
4344static void 4685static void
4345infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4686infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4346{ 4687{
4347 if (slot < 0) 4688 if (slot < 0)
4348 /* overflow, need to check for all hash slots */ 4689 /* overflow, need to check for all hash slots */
… …
4486#else 4827#else
4487# define EV_LSTAT(p,b) lstat (p, b) 4828# define EV_LSTAT(p,b) lstat (p, b)
4488#endif 4829#endif
4489 4830
4490void 4831void
4491ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4832ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4492{ 4833{
4493 if (lstat (w->path, &w->attr) < 0) 4834 if (lstat (w->path, &w->attr) < 0)
4494 w->attr.st_nlink = 0; 4835 w->attr.st_nlink = 0;
4495 else if (!w->attr.st_nlink) 4836 else if (!w->attr.st_nlink)
4496 w->attr.st_nlink = 1; 4837 w->attr.st_nlink = 1;
4497} 4838}
4498 4839
4499noinline 4840ecb_noinline
4500static void 4841static void
4501stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4842stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4502{ 4843{
4503 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4844 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4504 4845
… …
4536 ev_feed_event (EV_A_ w, EV_STAT); 4877 ev_feed_event (EV_A_ w, EV_STAT);
4537 } 4878 }
4538} 4879}
4539 4880
4540void 4881void
4541ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4882ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4542{ 4883{
4543 if (expect_false (ev_is_active (w))) 4884 if (ecb_expect_false (ev_is_active (w)))
4544 return; 4885 return;
4545 4886
4546 ev_stat_stat (EV_A_ w); 4887 ev_stat_stat (EV_A_ w);
4547 4888
4548 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4889 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4567 4908
4568 EV_FREQUENT_CHECK; 4909 EV_FREQUENT_CHECK;
4569} 4910}
4570 4911
4571void 4912void
4572ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4913ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4573{ 4914{
4574 clear_pending (EV_A_ (W)w); 4915 clear_pending (EV_A_ (W)w);
4575 if (expect_false (!ev_is_active (w))) 4916 if (ecb_expect_false (!ev_is_active (w)))
4576 return; 4917 return;
4577 4918
4578 EV_FREQUENT_CHECK; 4919 EV_FREQUENT_CHECK;
4579 4920
4580#if EV_USE_INOTIFY 4921#if EV_USE_INOTIFY
… …
4593} 4934}
4594#endif 4935#endif
4595 4936
4596#if EV_IDLE_ENABLE 4937#if EV_IDLE_ENABLE
4597void 4938void
4598ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4939ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4599{ 4940{
4600 if (expect_false (ev_is_active (w))) 4941 if (ecb_expect_false (ev_is_active (w)))
4601 return; 4942 return;
4602 4943
4603 pri_adjust (EV_A_ (W)w); 4944 pri_adjust (EV_A_ (W)w);
4604 4945
4605 EV_FREQUENT_CHECK; 4946 EV_FREQUENT_CHECK;
… …
4608 int active = ++idlecnt [ABSPRI (w)]; 4949 int active = ++idlecnt [ABSPRI (w)];
4609 4950
4610 ++idleall; 4951 ++idleall;
4611 ev_start (EV_A_ (W)w, active); 4952 ev_start (EV_A_ (W)w, active);
4612 4953
4613 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4954 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4614 idles [ABSPRI (w)][active - 1] = w; 4955 idles [ABSPRI (w)][active - 1] = w;
4615 } 4956 }
4616 4957
4617 EV_FREQUENT_CHECK; 4958 EV_FREQUENT_CHECK;
4618} 4959}
4619 4960
4620void 4961void
4621ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4962ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4622{ 4963{
4623 clear_pending (EV_A_ (W)w); 4964 clear_pending (EV_A_ (W)w);
4624 if (expect_false (!ev_is_active (w))) 4965 if (ecb_expect_false (!ev_is_active (w)))
4625 return; 4966 return;
4626 4967
4627 EV_FREQUENT_CHECK; 4968 EV_FREQUENT_CHECK;
4628 4969
4629 { 4970 {
… …
4640} 4981}
4641#endif 4982#endif
4642 4983
4643#if EV_PREPARE_ENABLE 4984#if EV_PREPARE_ENABLE
4644void 4985void
4645ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4986ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4646{ 4987{
4647 if (expect_false (ev_is_active (w))) 4988 if (ecb_expect_false (ev_is_active (w)))
4648 return; 4989 return;
4649 4990
4650 EV_FREQUENT_CHECK; 4991 EV_FREQUENT_CHECK;
4651 4992
4652 ev_start (EV_A_ (W)w, ++preparecnt); 4993 ev_start (EV_A_ (W)w, ++preparecnt);
4653 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4994 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4654 prepares [preparecnt - 1] = w; 4995 prepares [preparecnt - 1] = w;
4655 4996
4656 EV_FREQUENT_CHECK; 4997 EV_FREQUENT_CHECK;
4657} 4998}
4658 4999
4659void 5000void
4660ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5001ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4661{ 5002{
4662 clear_pending (EV_A_ (W)w); 5003 clear_pending (EV_A_ (W)w);
4663 if (expect_false (!ev_is_active (w))) 5004 if (ecb_expect_false (!ev_is_active (w)))
4664 return; 5005 return;
4665 5006
4666 EV_FREQUENT_CHECK; 5007 EV_FREQUENT_CHECK;
4667 5008
4668 { 5009 {
… …
4678} 5019}
4679#endif 5020#endif
4680 5021
4681#if EV_CHECK_ENABLE 5022#if EV_CHECK_ENABLE
4682void 5023void
4683ev_check_start (EV_P_ ev_check *w) EV_THROW 5024ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4684{ 5025{
4685 if (expect_false (ev_is_active (w))) 5026 if (ecb_expect_false (ev_is_active (w)))
4686 return; 5027 return;
4687 5028
4688 EV_FREQUENT_CHECK; 5029 EV_FREQUENT_CHECK;
4689 5030
4690 ev_start (EV_A_ (W)w, ++checkcnt); 5031 ev_start (EV_A_ (W)w, ++checkcnt);
4691 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5032 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4692 checks [checkcnt - 1] = w; 5033 checks [checkcnt - 1] = w;
4693 5034
4694 EV_FREQUENT_CHECK; 5035 EV_FREQUENT_CHECK;
4695} 5036}
4696 5037
4697void 5038void
4698ev_check_stop (EV_P_ ev_check *w) EV_THROW 5039ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4699{ 5040{
4700 clear_pending (EV_A_ (W)w); 5041 clear_pending (EV_A_ (W)w);
4701 if (expect_false (!ev_is_active (w))) 5042 if (ecb_expect_false (!ev_is_active (w)))
4702 return; 5043 return;
4703 5044
4704 EV_FREQUENT_CHECK; 5045 EV_FREQUENT_CHECK;
4705 5046
4706 { 5047 {
… …
4715 EV_FREQUENT_CHECK; 5056 EV_FREQUENT_CHECK;
4716} 5057}
4717#endif 5058#endif
4718 5059
4719#if EV_EMBED_ENABLE 5060#if EV_EMBED_ENABLE
4720noinline 5061ecb_noinline
4721void 5062void
4722ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5063ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4723{ 5064{
4724 ev_run (w->other, EVRUN_NOWAIT); 5065 ev_run (w->other, EVRUN_NOWAIT);
4725} 5066}
4726 5067
4727static void 5068static void
… …
4749 ev_run (EV_A_ EVRUN_NOWAIT); 5090 ev_run (EV_A_ EVRUN_NOWAIT);
4750 } 5091 }
4751 } 5092 }
4752} 5093}
4753 5094
5095#if EV_FORK_ENABLE
4754static void 5096static void
4755embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5097embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4756{ 5098{
4757 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5099 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4758 5100
… …
4765 ev_run (EV_A_ EVRUN_NOWAIT); 5107 ev_run (EV_A_ EVRUN_NOWAIT);
4766 } 5108 }
4767 5109
4768 ev_embed_start (EV_A_ w); 5110 ev_embed_start (EV_A_ w);
4769} 5111}
5112#endif
4770 5113
4771#if 0 5114#if 0
4772static void 5115static void
4773embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5116embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4774{ 5117{
4775 ev_idle_stop (EV_A_ idle); 5118 ev_idle_stop (EV_A_ idle);
4776} 5119}
4777#endif 5120#endif
4778 5121
4779void 5122void
4780ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5123ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4781{ 5124{
4782 if (expect_false (ev_is_active (w))) 5125 if (ecb_expect_false (ev_is_active (w)))
4783 return; 5126 return;
4784 5127
4785 { 5128 {
4786 EV_P = w->other; 5129 EV_P = w->other;
4787 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5130 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4795 5138
4796 ev_prepare_init (&w->prepare, embed_prepare_cb); 5139 ev_prepare_init (&w->prepare, embed_prepare_cb);
4797 ev_set_priority (&w->prepare, EV_MINPRI); 5140 ev_set_priority (&w->prepare, EV_MINPRI);
4798 ev_prepare_start (EV_A_ &w->prepare); 5141 ev_prepare_start (EV_A_ &w->prepare);
4799 5142
5143#if EV_FORK_ENABLE
4800 ev_fork_init (&w->fork, embed_fork_cb); 5144 ev_fork_init (&w->fork, embed_fork_cb);
4801 ev_fork_start (EV_A_ &w->fork); 5145 ev_fork_start (EV_A_ &w->fork);
5146#endif
4802 5147
4803 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5148 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4804 5149
4805 ev_start (EV_A_ (W)w, 1); 5150 ev_start (EV_A_ (W)w, 1);
4806 5151
4807 EV_FREQUENT_CHECK; 5152 EV_FREQUENT_CHECK;
4808} 5153}
4809 5154
4810void 5155void
4811ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5156ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4812{ 5157{
4813 clear_pending (EV_A_ (W)w); 5158 clear_pending (EV_A_ (W)w);
4814 if (expect_false (!ev_is_active (w))) 5159 if (ecb_expect_false (!ev_is_active (w)))
4815 return; 5160 return;
4816 5161
4817 EV_FREQUENT_CHECK; 5162 EV_FREQUENT_CHECK;
4818 5163
4819 ev_io_stop (EV_A_ &w->io); 5164 ev_io_stop (EV_A_ &w->io);
4820 ev_prepare_stop (EV_A_ &w->prepare); 5165 ev_prepare_stop (EV_A_ &w->prepare);
5166#if EV_FORK_ENABLE
4821 ev_fork_stop (EV_A_ &w->fork); 5167 ev_fork_stop (EV_A_ &w->fork);
5168#endif
4822 5169
4823 ev_stop (EV_A_ (W)w); 5170 ev_stop (EV_A_ (W)w);
4824 5171
4825 EV_FREQUENT_CHECK; 5172 EV_FREQUENT_CHECK;
4826} 5173}
4827#endif 5174#endif
4828 5175
4829#if EV_FORK_ENABLE 5176#if EV_FORK_ENABLE
4830void 5177void
4831ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5178ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4832{ 5179{
4833 if (expect_false (ev_is_active (w))) 5180 if (ecb_expect_false (ev_is_active (w)))
4834 return; 5181 return;
4835 5182
4836 EV_FREQUENT_CHECK; 5183 EV_FREQUENT_CHECK;
4837 5184
4838 ev_start (EV_A_ (W)w, ++forkcnt); 5185 ev_start (EV_A_ (W)w, ++forkcnt);
4839 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5186 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4840 forks [forkcnt - 1] = w; 5187 forks [forkcnt - 1] = w;
4841 5188
4842 EV_FREQUENT_CHECK; 5189 EV_FREQUENT_CHECK;
4843} 5190}
4844 5191
4845void 5192void
4846ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5193ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4847{ 5194{
4848 clear_pending (EV_A_ (W)w); 5195 clear_pending (EV_A_ (W)w);
4849 if (expect_false (!ev_is_active (w))) 5196 if (ecb_expect_false (!ev_is_active (w)))
4850 return; 5197 return;
4851 5198
4852 EV_FREQUENT_CHECK; 5199 EV_FREQUENT_CHECK;
4853 5200
4854 { 5201 {
… …
4864} 5211}
4865#endif 5212#endif
4866 5213
4867#if EV_CLEANUP_ENABLE 5214#if EV_CLEANUP_ENABLE
4868void 5215void
4869ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5216ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4870{ 5217{
4871 if (expect_false (ev_is_active (w))) 5218 if (ecb_expect_false (ev_is_active (w)))
4872 return; 5219 return;
4873 5220
4874 EV_FREQUENT_CHECK; 5221 EV_FREQUENT_CHECK;
4875 5222
4876 ev_start (EV_A_ (W)w, ++cleanupcnt); 5223 ev_start (EV_A_ (W)w, ++cleanupcnt);
4877 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5224 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4878 cleanups [cleanupcnt - 1] = w; 5225 cleanups [cleanupcnt - 1] = w;
4879 5226
4880 /* cleanup watchers should never keep a refcount on the loop */ 5227 /* cleanup watchers should never keep a refcount on the loop */
4881 ev_unref (EV_A); 5228 ev_unref (EV_A);
4882 EV_FREQUENT_CHECK; 5229 EV_FREQUENT_CHECK;
4883} 5230}
4884 5231
4885void 5232void
4886ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5233ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4887{ 5234{
4888 clear_pending (EV_A_ (W)w); 5235 clear_pending (EV_A_ (W)w);
4889 if (expect_false (!ev_is_active (w))) 5236 if (ecb_expect_false (!ev_is_active (w)))
4890 return; 5237 return;
4891 5238
4892 EV_FREQUENT_CHECK; 5239 EV_FREQUENT_CHECK;
4893 ev_ref (EV_A); 5240 ev_ref (EV_A);
4894 5241
… …
4905} 5252}
4906#endif 5253#endif
4907 5254
4908#if EV_ASYNC_ENABLE 5255#if EV_ASYNC_ENABLE
4909void 5256void
4910ev_async_start (EV_P_ ev_async *w) EV_THROW 5257ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4911{ 5258{
4912 if (expect_false (ev_is_active (w))) 5259 if (ecb_expect_false (ev_is_active (w)))
4913 return; 5260 return;
4914 5261
4915 w->sent = 0; 5262 w->sent = 0;
4916 5263
4917 evpipe_init (EV_A); 5264 evpipe_init (EV_A);
4918 5265
4919 EV_FREQUENT_CHECK; 5266 EV_FREQUENT_CHECK;
4920 5267
4921 ev_start (EV_A_ (W)w, ++asynccnt); 5268 ev_start (EV_A_ (W)w, ++asynccnt);
4922 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5269 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4923 asyncs [asynccnt - 1] = w; 5270 asyncs [asynccnt - 1] = w;
4924 5271
4925 EV_FREQUENT_CHECK; 5272 EV_FREQUENT_CHECK;
4926} 5273}
4927 5274
4928void 5275void
4929ev_async_stop (EV_P_ ev_async *w) EV_THROW 5276ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4930{ 5277{
4931 clear_pending (EV_A_ (W)w); 5278 clear_pending (EV_A_ (W)w);
4932 if (expect_false (!ev_is_active (w))) 5279 if (ecb_expect_false (!ev_is_active (w)))
4933 return; 5280 return;
4934 5281
4935 EV_FREQUENT_CHECK; 5282 EV_FREQUENT_CHECK;
4936 5283
4937 { 5284 {
… …
4945 5292
4946 EV_FREQUENT_CHECK; 5293 EV_FREQUENT_CHECK;
4947} 5294}
4948 5295
4949void 5296void
4950ev_async_send (EV_P_ ev_async *w) EV_THROW 5297ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4951{ 5298{
4952 w->sent = 1; 5299 w->sent = 1;
4953 evpipe_write (EV_A_ &async_pending); 5300 evpipe_write (EV_A_ &async_pending);
4954} 5301}
4955#endif 5302#endif
… …
4992 5339
4993 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5340 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4994} 5341}
4995 5342
4996void 5343void
4997ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5344ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4998{ 5345{
4999 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5346 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
5000
5001 if (expect_false (!once))
5002 {
5003 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
5004 return;
5005 }
5006 5347
5007 once->cb = cb; 5348 once->cb = cb;
5008 once->arg = arg; 5349 once->arg = arg;
5009 5350
5010 ev_init (&once->io, once_cb_io); 5351 ev_init (&once->io, once_cb_io);
… …
5025/*****************************************************************************/ 5366/*****************************************************************************/
5026 5367
5027#if EV_WALK_ENABLE 5368#if EV_WALK_ENABLE
5028ecb_cold 5369ecb_cold
5029void 5370void
5030ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5371ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
5031{ 5372{
5032 int i, j; 5373 int i, j;
5033 ev_watcher_list *wl, *wn; 5374 ev_watcher_list *wl, *wn;
5034 5375
5035 if (types & (EV_IO | EV_EMBED)) 5376 if (types & (EV_IO | EV_EMBED))

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