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

Comparing libev/ev.c (file contents):
Revision 1.489 by root, Sat Dec 29 14:23:20 2018 UTC vs.
Revision 1.521 by root, Sat Dec 28 07:47:35 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007-2018 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
190# endif
191
165#endif 192#endif
166 193
167/* OS X, in its infinite idiocy, actually HARDCODES 194/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains, 195 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were 196 * OS X engineers apparently have a vacuum. Or maybe they were
… …
315 342
316#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
317# define EV_USE_PORT 0 344# define EV_USE_PORT 0
318#endif 345#endif
319 346
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
320#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
321# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
322# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
323# else 366# else
324# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
344#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
345# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
346# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
347# else 390# else
348# 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
349# endif 400# endif
350#endif 401#endif
351 402
352#if 0 /* debugging */ 403#if 0 /* debugging */
353# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
389# include <sys/syscall.h> 440# include <sys/syscall.h>
390# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
391# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
392# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
393# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
394# else 446# else
395# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
396# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
397# endif 449# endif
398#endif 450#endif
… …
412#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
413# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
414# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
415#endif 467#endif
416 468
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
417#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
418/* 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 */
419# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
420# 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
421# endif 506# endif
422#endif 507#endif
423 508
424#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
425# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
430# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
431# endif 516# endif
432#endif 517#endif
433 518
434#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
435/* 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 */
436# include <stdint.h> 521# include <stdint.h>
437# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
438# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
439# endif 524# endif
440# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
446# endif 531# endif
447EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
448#endif 533#endif
449 534
450#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
451/* 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 */
452# include <stdint.h> 537# include <stdint.h>
453# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
454# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
455# endif 540# endif
456# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
458# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
459# else 544# else
460# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
461# endif 546# endif
462# endif 547# endif
463EV_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);
464 549
465struct signalfd_siginfo 550struct signalfd_siginfo
466{ 551{
467 uint32_t ssi_signo; 552 uint32_t ssi_signo;
468 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
469}; 554};
470#endif 555#endif
471 556
472/**/ 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/*****************************************************************************/
473 568
474#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
475# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
476#else 571#else
477# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
482 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
483 */ 578 */
484#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
485/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
486 581
487#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) */
488#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) */
489 584
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
490#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)
491#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
492 602
493/* 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 */
494/* ECB.H BEGIN */ 604/* ECB.H BEGIN */
495/* 605/*
496 * libecb - http://software.schmorp.de/pkg/libecb 606 * libecb - http://software.schmorp.de/pkg/libecb
… …
534 644
535#ifndef ECB_H 645#ifndef ECB_H
536#define ECB_H 646#define ECB_H
537 647
538/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
539#define ECB_VERSION 0x00010005 649#define ECB_VERSION 0x00010006
540 650
541#ifdef _WIN32 651#ifdef _WIN32
542 typedef signed char int8_t; 652 typedef signed char int8_t;
543 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
544 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 768 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
659#endif 769#endif
660 770
661#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
662 #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")
663 #if __i386 || __i386__ 774 #if __i386 || __i386__
664 #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")
665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
667 #elif ECB_GCC_AMD64 778 #elif ECB_GCC_AMD64
… …
717 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
718 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #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)
722 834
723 #elif ECB_CLANG_EXTENSION(c_atomic) 835 #elif ECB_CLANG_EXTENSION(c_atomic)
724 /* see comment below (stdatomic.h) about the C11 memory model. */ 836 /* see comment below (stdatomic.h) about the C11 memory model. */
725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #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)
728 841
729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
730 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
731 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
732 /* 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... */
… …
742 #elif defined _WIN32 855 #elif defined _WIN32
743 #include <WinNT.h> 856 #include <WinNT.h>
744 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
745 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #include <mbarrier.h> 859 #include <mbarrier.h>
747 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
748 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
749 #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 ()
750 #elif __xlC__ 864 #elif __xlC__
751 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
752 #endif 866 #endif
753#endif 867#endif
754 868
755#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
756 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
757 /* 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, */
758 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
759 #include <stdatomic.h> 873 #include <stdatomic.h>
760 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
761 /* any fence other than seq_cst, which isn't very efficient for us. */
762 /* Why that is, we don't know - either the C11 memory model is quite useless */
763 /* for most usages, or gcc and clang have a bug */
764 /* I *currently* lean towards the latter, and inefficiently implement */
765 /* all three of ecb's fences as a seq_cst fence */
766 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
767 /* for all __atomic_thread_fence's except seq_cst */
768 #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)
769 #endif 877 #endif
770#endif 878#endif
771 879
772#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
773 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
791 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 899 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
792#endif 900#endif
793 901
794#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
795 #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 */
796#endif 908#endif
797 909
798/*****************************************************************************/ 910/*****************************************************************************/
799 911
800#if ECB_CPP 912#if ECB_CPP
… …
1509/* ECB.H END */ 1621/* ECB.H END */
1510 1622
1511#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1512/* 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
1513 * 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
1514 * 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
1515 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
1516 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
1517 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
1518 */ 1630 */
1519# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1523# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1524# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1525# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1526#endif 1638#endif
1527 1639
1528#define expect_false(cond) ecb_expect_false (cond)
1529#define expect_true(cond) ecb_expect_true (cond)
1530#define noinline ecb_noinline
1531
1532#define inline_size ecb_inline 1640#define inline_size ecb_inline
1533 1641
1534#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1535# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1536#else 1644#else
1537# define inline_speed noinline static 1645# define inline_speed ecb_noinline static
1538#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/*****************************************************************************/
1539 1713
1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1714#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1541 1715
1542#if EV_MINPRI == EV_MAXPRI 1716#if EV_MINPRI == EV_MAXPRI
1543# define ABSPRI(w) (((W)w), 0) 1717# define ABSPRI(w) (((W)w), 0)
1544#else 1718#else
1545# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1719# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1546#endif 1720#endif
1547 1721
1548#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1722#define EMPTY /* required for microsofts broken pseudo-c compiler */
1549#define EMPTY2(a,b) /* used to suppress some warnings */
1550 1723
1551typedef ev_watcher *W; 1724typedef ev_watcher *W;
1552typedef ev_watcher_list *WL; 1725typedef ev_watcher_list *WL;
1553typedef ev_watcher_time *WT; 1726typedef ev_watcher_time *WT;
1554 1727
… …
1579# include "ev_win32.c" 1752# include "ev_win32.c"
1580#endif 1753#endif
1581 1754
1582/*****************************************************************************/ 1755/*****************************************************************************/
1583 1756
1757#if EV_USE_LINUXAIO
1758# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1759#endif
1760
1584/* define a suitable floor function (only used by periodics atm) */ 1761/* define a suitable floor function (only used by periodics atm) */
1585 1762
1586#if EV_USE_FLOOR 1763#if EV_USE_FLOOR
1587# include <math.h> 1764# include <math.h>
1588# define ev_floor(v) floor (v) 1765# define ev_floor(v) floor (v)
1589#else 1766#else
1590 1767
1591#include <float.h> 1768#include <float.h>
1592 1769
1593/* a floor() replacement function, should be independent of ev_tstamp type */ 1770/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline 1771ecb_noinline
1595static ev_tstamp 1772static ev_tstamp
1596ev_floor (ev_tstamp v) 1773ev_floor (ev_tstamp v)
1597{ 1774{
1598 /* the choice of shift factor is not terribly important */ 1775 /* the choice of shift factor is not terribly important */
1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1776#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1777 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1601#else 1778#else
1602 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1779 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1603#endif 1780#endif
1604 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
1605 /* argument too large for an unsigned long? */ 1790 /* argument too large for an unsigned long? then reduce it */
1606 if (expect_false (v >= shift)) 1791 if (ecb_expect_false (v >= shift))
1607 { 1792 {
1608 ev_tstamp f; 1793 ev_tstamp f;
1609 1794
1610 if (v == v - 1.) 1795 if (v == v - 1.)
1611 return v; /* very large number */ 1796 return v; /* very large numbers are assumed to be integer */
1612 1797
1613 f = shift * ev_floor (v * (1. / shift)); 1798 f = shift * ev_floor (v * (1. / shift));
1614 return f + ev_floor (v - f); 1799 return f + ev_floor (v - f);
1615 } 1800 }
1616 1801
1617 /* special treatment for negative args? */
1618 if (expect_false (v < 0.))
1619 {
1620 ev_tstamp f = -ev_floor (-v);
1621
1622 return f - (f == v ? 0 : 1);
1623 }
1624
1625 /* fits into an unsigned long */ 1802 /* fits into an unsigned long */
1626 return (unsigned long)v; 1803 return (unsigned long)v;
1627} 1804}
1628 1805
1629#endif 1806#endif
… …
1632 1809
1633#ifdef __linux 1810#ifdef __linux
1634# include <sys/utsname.h> 1811# include <sys/utsname.h>
1635#endif 1812#endif
1636 1813
1637noinline ecb_cold 1814ecb_noinline ecb_cold
1638static unsigned int 1815static unsigned int
1639ev_linux_version (void) 1816ev_linux_version (void)
1640{ 1817{
1641#ifdef __linux 1818#ifdef __linux
1642 unsigned int v = 0; 1819 unsigned int v = 0;
… …
1672} 1849}
1673 1850
1674/*****************************************************************************/ 1851/*****************************************************************************/
1675 1852
1676#if EV_AVOID_STDIO 1853#if EV_AVOID_STDIO
1677noinline ecb_cold 1854ecb_noinline ecb_cold
1678static void 1855static void
1679ev_printerr (const char *msg) 1856ev_printerr (const char *msg)
1680{ 1857{
1681 write (STDERR_FILENO, msg, strlen (msg)); 1858 write (STDERR_FILENO, msg, strlen (msg));
1682} 1859}
… …
1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 1866ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1690{ 1867{
1691 syserr_cb = cb; 1868 syserr_cb = cb;
1692} 1869}
1693 1870
1694noinline ecb_cold 1871ecb_noinline ecb_cold
1695static void 1872static void
1696ev_syserr (const char *msg) 1873ev_syserr (const char *msg)
1697{ 1874{
1698 if (!msg) 1875 if (!msg)
1699 msg = "(libev) system error"; 1876 msg = "(libev) system error";
… …
1770typedef struct 1947typedef struct
1771{ 1948{
1772 WL head; 1949 WL head;
1773 unsigned char events; /* the events watched for */ 1950 unsigned char events; /* the events watched for */
1774 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) */
1775 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 */
1776 unsigned char unused; 1953 unsigned char eflags; /* flags field for use by backends */
1777#if EV_USE_EPOLL 1954#if EV_USE_EPOLL
1778 unsigned int egen; /* generation counter to counter epoll bugs */ 1955 unsigned int egen; /* generation counter to counter epoll bugs */
1779#endif 1956#endif
1780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1957#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1781 SOCKET handle; 1958 SOCKET handle;
… …
1835 static struct ev_loop default_loop_struct; 2012 static struct ev_loop default_loop_struct;
1836 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 */
1837 2014
1838#else 2015#else
1839 2016
1840 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 */
1841 #define VAR(name,decl) static decl; 2018 #define VAR(name,decl) static decl;
1842 #include "ev_vars.h" 2019 #include "ev_vars.h"
1843 #undef VAR 2020 #undef VAR
1844 2021
1845 static int ev_default_loop_ptr; 2022 static int ev_default_loop_ptr;
1846 2023
1847#endif 2024#endif
1848 2025
1849#if EV_FEATURE_API 2026#if EV_FEATURE_API
1850# 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)
1851# 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)
1852# define EV_INVOKE_PENDING invoke_cb (EV_A) 2029# define EV_INVOKE_PENDING invoke_cb (EV_A)
1853#else 2030#else
1854# define EV_RELEASE_CB (void)0 2031# define EV_RELEASE_CB (void)0
1855# define EV_ACQUIRE_CB (void)0 2032# define EV_ACQUIRE_CB (void)0
1856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2033# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1863#ifndef EV_HAVE_EV_TIME 2040#ifndef EV_HAVE_EV_TIME
1864ev_tstamp 2041ev_tstamp
1865ev_time (void) EV_NOEXCEPT 2042ev_time (void) EV_NOEXCEPT
1866{ 2043{
1867#if EV_USE_REALTIME 2044#if EV_USE_REALTIME
1868 if (expect_true (have_realtime)) 2045 if (ecb_expect_true (have_realtime))
1869 { 2046 {
1870 struct timespec ts; 2047 struct timespec ts;
1871 clock_gettime (CLOCK_REALTIME, &ts); 2048 clock_gettime (CLOCK_REALTIME, &ts);
1872 return ts.tv_sec + ts.tv_nsec * 1e-9; 2049 return EV_TS_GET (ts);
1873 } 2050 }
1874#endif 2051#endif
1875 2052
2053 {
1876 struct timeval tv; 2054 struct timeval tv;
1877 gettimeofday (&tv, 0); 2055 gettimeofday (&tv, 0);
1878 return tv.tv_sec + tv.tv_usec * 1e-6; 2056 return EV_TV_GET (tv);
2057 }
1879} 2058}
1880#endif 2059#endif
1881 2060
1882inline_size ev_tstamp 2061inline_size ev_tstamp
1883get_clock (void) 2062get_clock (void)
1884{ 2063{
1885#if EV_USE_MONOTONIC 2064#if EV_USE_MONOTONIC
1886 if (expect_true (have_monotonic)) 2065 if (ecb_expect_true (have_monotonic))
1887 { 2066 {
1888 struct timespec ts; 2067 struct timespec ts;
1889 clock_gettime (CLOCK_MONOTONIC, &ts); 2068 clock_gettime (CLOCK_MONOTONIC, &ts);
1890 return ts.tv_sec + ts.tv_nsec * 1e-9; 2069 return EV_TS_GET (ts);
1891 } 2070 }
1892#endif 2071#endif
1893 2072
1894 return ev_time (); 2073 return ev_time ();
1895} 2074}
… …
1903#endif 2082#endif
1904 2083
1905void 2084void
1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT 2085ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1907{ 2086{
1908 if (delay > 0.) 2087 if (delay > EV_TS_CONST (0.))
1909 { 2088 {
1910#if EV_USE_NANOSLEEP 2089#if EV_USE_NANOSLEEP
1911 struct timespec ts; 2090 struct timespec ts;
1912 2091
1913 EV_TS_SET (ts, delay); 2092 EV_TS_SET (ts, delay);
1914 nanosleep (&ts, 0); 2093 nanosleep (&ts, 0);
1915#elif defined _WIN32 2094#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */ 2095 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */ 2096 /* compared to select (µs) or nanosleep (ns) */
1918 Sleep ((unsigned long)(delay * 1e3)); 2097 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1919#else 2098#else
1920 struct timeval tv; 2099 struct timeval tv;
1921 2100
1922 /* 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 */
1923 /* something not guaranteed by newer posix versions, but guaranteed */ 2102 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1953 } 2132 }
1954 2133
1955 return ncur; 2134 return ncur;
1956} 2135}
1957 2136
1958noinline ecb_cold 2137ecb_noinline ecb_cold
1959static void * 2138static void *
1960array_realloc (int elem, void *base, int *cur, int cnt) 2139array_realloc (int elem, void *base, int *cur, int cnt)
1961{ 2140{
1962 *cur = array_nextsize (elem, *cur, cnt); 2141 *cur = array_nextsize (elem, *cur, cnt);
1963 return ev_realloc (base, elem * *cur); 2142 return ev_realloc (base, elem * *cur);
1964} 2143}
1965 2144
2145#define array_needsize_noinit(base,offset,count)
2146
1966#define array_init_zero(base,count) \ 2147#define array_needsize_zerofill(base,offset,count) \
1967 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2148 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1968 2149
1969#define array_needsize(type,base,cur,cnt,init) \ 2150#define array_needsize(type,base,cur,cnt,init) \
1970 if (expect_false ((cnt) > (cur))) \ 2151 if (ecb_expect_false ((cnt) > (cur))) \
1971 { \ 2152 { \
1972 ecb_unused int ocur_ = (cur); \ 2153 ecb_unused int ocur_ = (cur); \
1973 (base) = (type *)array_realloc \ 2154 (base) = (type *)array_realloc \
1974 (sizeof (type), (base), &(cur), (cnt)); \ 2155 (sizeof (type), (base), &(cur), (cnt)); \
1975 init ((base) + (ocur_), (cur) - ocur_); \ 2156 init ((base), ocur_, ((cur) - ocur_)); \
1976 } 2157 }
1977 2158
1978#if 0 2159#if 0
1979#define array_slim(type,stem) \ 2160#define array_slim(type,stem) \
1980 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2161 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1989 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
1990 2171
1991/*****************************************************************************/ 2172/*****************************************************************************/
1992 2173
1993/* dummy callback for pending events */ 2174/* dummy callback for pending events */
1994noinline 2175ecb_noinline
1995static void 2176static void
1996pendingcb (EV_P_ ev_prepare *w, int revents) 2177pendingcb (EV_P_ ev_prepare *w, int revents)
1997{ 2178{
1998} 2179}
1999 2180
2000noinline 2181ecb_noinline
2001void 2182void
2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2183ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2003{ 2184{
2004 W w_ = (W)w; 2185 W w_ = (W)w;
2005 int pri = ABSPRI (w_); 2186 int pri = ABSPRI (w_);
2006 2187
2007 if (expect_false (w_->pending)) 2188 if (ecb_expect_false (w_->pending))
2008 pendings [pri][w_->pending - 1].events |= revents; 2189 pendings [pri][w_->pending - 1].events |= revents;
2009 else 2190 else
2010 { 2191 {
2011 w_->pending = ++pendingcnt [pri]; 2192 w_->pending = ++pendingcnt [pri];
2012 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2193 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2013 pendings [pri][w_->pending - 1].w = w_; 2194 pendings [pri][w_->pending - 1].w = w_;
2014 pendings [pri][w_->pending - 1].events = revents; 2195 pendings [pri][w_->pending - 1].events = revents;
2015 } 2196 }
2016 2197
2017 pendingpri = NUMPRI - 1; 2198 pendingpri = NUMPRI - 1;
2018} 2199}
2019 2200
2020inline_speed void 2201inline_speed void
2021feed_reverse (EV_P_ W w) 2202feed_reverse (EV_P_ W w)
2022{ 2203{
2023 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2204 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2024 rfeeds [rfeedcnt++] = w; 2205 rfeeds [rfeedcnt++] = w;
2025} 2206}
2026 2207
2027inline_size void 2208inline_size void
2028feed_reverse_done (EV_P_ int revents) 2209feed_reverse_done (EV_P_ int revents)
… …
2063inline_speed void 2244inline_speed void
2064fd_event (EV_P_ int fd, int revents) 2245fd_event (EV_P_ int fd, int revents)
2065{ 2246{
2066 ANFD *anfd = anfds + fd; 2247 ANFD *anfd = anfds + fd;
2067 2248
2068 if (expect_true (!anfd->reify)) 2249 if (ecb_expect_true (!anfd->reify))
2069 fd_event_nocheck (EV_A_ fd, revents); 2250 fd_event_nocheck (EV_A_ fd, revents);
2070} 2251}
2071 2252
2072void 2253void
2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2254ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2081inline_size void 2262inline_size void
2082fd_reify (EV_P) 2263fd_reify (EV_P)
2083{ 2264{
2084 int i; 2265 int i;
2085 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
2086#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2279#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2087 for (i = 0; i < fdchangecnt; ++i) 2280 for (i = 0; i < changecnt; ++i)
2088 { 2281 {
2089 int fd = fdchanges [i]; 2282 int fd = fdchanges [i];
2090 ANFD *anfd = anfds + fd; 2283 ANFD *anfd = anfds + fd;
2091 2284
2092 if (anfd->reify & EV__IOFDSET && anfd->head) 2285 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2106 } 2299 }
2107 } 2300 }
2108 } 2301 }
2109#endif 2302#endif
2110 2303
2111 for (i = 0; i < fdchangecnt; ++i) 2304 for (i = 0; i < changecnt; ++i)
2112 { 2305 {
2113 int fd = fdchanges [i]; 2306 int fd = fdchanges [i];
2114 ANFD *anfd = anfds + fd; 2307 ANFD *anfd = anfds + fd;
2115 ev_io *w; 2308 ev_io *w;
2116 2309
2117 unsigned char o_events = anfd->events; 2310 unsigned char o_events = anfd->events;
2118 unsigned char o_reify = anfd->reify; 2311 unsigned char o_reify = anfd->reify;
2119 2312
2120 anfd->reify = 0; 2313 anfd->reify = 0;
2121 2314
2122 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2315 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2123 { 2316 {
2124 anfd->events = 0; 2317 anfd->events = 0;
2125 2318
2126 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)
2127 anfd->events |= (unsigned char)w->events; 2320 anfd->events |= (unsigned char)w->events;
… …
2132 2325
2133 if (o_reify & EV__IOFDSET) 2326 if (o_reify & EV__IOFDSET)
2134 backend_modify (EV_A_ fd, o_events, anfd->events); 2327 backend_modify (EV_A_ fd, o_events, anfd->events);
2135 } 2328 }
2136 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
2137 fdchangecnt = 0; 2337 fdchangecnt -= changecnt;
2138} 2338}
2139 2339
2140/* something about the given fd changed */ 2340/* something about the given fd changed */
2141inline_size 2341inline_size
2142void 2342void
2143fd_change (EV_P_ int fd, int flags) 2343fd_change (EV_P_ int fd, int flags)
2144{ 2344{
2145 unsigned char reify = anfds [fd].reify; 2345 unsigned char reify = anfds [fd].reify;
2146 anfds [fd].reify |= flags; 2346 anfds [fd].reify |= flags;
2147 2347
2148 if (expect_true (!reify)) 2348 if (ecb_expect_true (!reify))
2149 { 2349 {
2150 ++fdchangecnt; 2350 ++fdchangecnt;
2151 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2351 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2152 fdchanges [fdchangecnt - 1] = fd; 2352 fdchanges [fdchangecnt - 1] = fd;
2153 } 2353 }
2154} 2354}
2155 2355
2156/* 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 */
… …
2176 return fcntl (fd, F_GETFD) != -1; 2376 return fcntl (fd, F_GETFD) != -1;
2177#endif 2377#endif
2178} 2378}
2179 2379
2180/* called on EBADF to verify fds */ 2380/* called on EBADF to verify fds */
2181noinline ecb_cold 2381ecb_noinline ecb_cold
2182static void 2382static void
2183fd_ebadf (EV_P) 2383fd_ebadf (EV_P)
2184{ 2384{
2185 int fd; 2385 int fd;
2186 2386
… …
2189 if (!fd_valid (fd) && errno == EBADF) 2389 if (!fd_valid (fd) && errno == EBADF)
2190 fd_kill (EV_A_ fd); 2390 fd_kill (EV_A_ fd);
2191} 2391}
2192 2392
2193/* 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 */
2194noinline ecb_cold 2394ecb_noinline ecb_cold
2195static void 2395static void
2196fd_enomem (EV_P) 2396fd_enomem (EV_P)
2197{ 2397{
2198 int fd; 2398 int fd;
2199 2399
… …
2204 break; 2404 break;
2205 } 2405 }
2206} 2406}
2207 2407
2208/* 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 */
2209noinline 2409ecb_noinline
2210static void 2410static void
2211fd_rearm_all (EV_P) 2411fd_rearm_all (EV_P)
2212{ 2412{
2213 int fd; 2413 int fd;
2214 2414
… …
2268 ev_tstamp minat; 2468 ev_tstamp minat;
2269 ANHE *minpos; 2469 ANHE *minpos;
2270 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2470 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2271 2471
2272 /* find minimum child */ 2472 /* find minimum child */
2273 if (expect_true (pos + DHEAP - 1 < E)) 2473 if (ecb_expect_true (pos + DHEAP - 1 < E))
2274 { 2474 {
2275 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2475 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2276 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));
2277 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));
2278 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));
2279 } 2479 }
2280 else if (pos < E) 2480 else if (pos < E)
2281 { 2481 {
2282 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2482 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2283 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));
2284 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));
2285 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));
2286 } 2486 }
2287 else 2487 else
2288 break; 2488 break;
2289 2489
2290 if (ANHE_at (he) <= minat) 2490 if (ANHE_at (he) <= minat)
… …
2298 2498
2299 heap [k] = he; 2499 heap [k] = he;
2300 ev_active (ANHE_w (he)) = k; 2500 ev_active (ANHE_w (he)) = k;
2301} 2501}
2302 2502
2303#else /* 4HEAP */ 2503#else /* not 4HEAP */
2304 2504
2305#define HEAP0 1 2505#define HEAP0 1
2306#define HPARENT(k) ((k) >> 1) 2506#define HPARENT(k) ((k) >> 1)
2307#define UPHEAP_DONE(p,k) (!(p)) 2507#define UPHEAP_DONE(p,k) (!(p))
2308 2508
… …
2396 2596
2397/*****************************************************************************/ 2597/*****************************************************************************/
2398 2598
2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2599#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2400 2600
2401noinline ecb_cold 2601ecb_noinline ecb_cold
2402static void 2602static void
2403evpipe_init (EV_P) 2603evpipe_init (EV_P)
2404{ 2604{
2405 if (!ev_is_active (&pipe_w)) 2605 if (!ev_is_active (&pipe_w))
2406 { 2606 {
… …
2447inline_speed void 2647inline_speed void
2448evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2648evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2449{ 2649{
2450 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 */
2451 2651
2452 if (expect_true (*flag)) 2652 if (ecb_expect_true (*flag))
2453 return; 2653 return;
2454 2654
2455 *flag = 1; 2655 *flag = 1;
2456 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 */
2457 2657
… …
2534 sig_pending = 0; 2734 sig_pending = 0;
2535 2735
2536 ECB_MEMORY_FENCE; 2736 ECB_MEMORY_FENCE;
2537 2737
2538 for (i = EV_NSIG - 1; i--; ) 2738 for (i = EV_NSIG - 1; i--; )
2539 if (expect_false (signals [i].pending)) 2739 if (ecb_expect_false (signals [i].pending))
2540 ev_feed_signal_event (EV_A_ i + 1); 2740 ev_feed_signal_event (EV_A_ i + 1);
2541 } 2741 }
2542#endif 2742#endif
2543 2743
2544#if EV_ASYNC_ENABLE 2744#if EV_ASYNC_ENABLE
… …
2585#endif 2785#endif
2586 2786
2587 ev_feed_signal (signum); 2787 ev_feed_signal (signum);
2588} 2788}
2589 2789
2590noinline 2790ecb_noinline
2591void 2791void
2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2792ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2593{ 2793{
2594 WL w; 2794 WL w;
2595 2795
2596 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2796 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2597 return; 2797 return;
2598 2798
2599 --signum; 2799 --signum;
2600 2800
2601#if EV_MULTIPLICITY 2801#if EV_MULTIPLICITY
2602 /* 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 */
2603 /* or, likely more useful, feeding a signal nobody is waiting for */ 2803 /* or, likely more useful, feeding a signal nobody is waiting for */
2604 2804
2605 if (expect_false (signals [signum].loop != EV_A)) 2805 if (ecb_expect_false (signals [signum].loop != EV_A))
2606 return; 2806 return;
2607#endif 2807#endif
2608 2808
2609 signals [signum].pending = 0; 2809 signals [signum].pending = 0;
2610 ECB_MEMORY_FENCE_RELEASE; 2810 ECB_MEMORY_FENCE_RELEASE;
… …
2694 2894
2695#endif 2895#endif
2696 2896
2697/*****************************************************************************/ 2897/*****************************************************************************/
2698 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
2699#if EV_USE_IOCP 2951#if EV_USE_IOCP
2700# include "ev_iocp.c" 2952# include "ev_iocp.c"
2701#endif 2953#endif
2702#if EV_USE_PORT 2954#if EV_USE_PORT
2703# include "ev_port.c" 2955# include "ev_port.c"
… …
2705#if EV_USE_KQUEUE 2957#if EV_USE_KQUEUE
2706# include "ev_kqueue.c" 2958# include "ev_kqueue.c"
2707#endif 2959#endif
2708#if EV_USE_EPOLL 2960#if EV_USE_EPOLL
2709# include "ev_epoll.c" 2961# include "ev_epoll.c"
2962#endif
2963#if EV_USE_LINUXAIO
2964# include "ev_linuxaio.c"
2965#endif
2966#if EV_USE_IOURING
2967# include "ev_iouring.c"
2710#endif 2968#endif
2711#if EV_USE_POLL 2969#if EV_USE_POLL
2712# include "ev_poll.c" 2970# include "ev_poll.c"
2713#endif 2971#endif
2714#if EV_USE_SELECT 2972#if EV_USE_SELECT
… …
2743unsigned int 3001unsigned int
2744ev_supported_backends (void) EV_NOEXCEPT 3002ev_supported_backends (void) EV_NOEXCEPT
2745{ 3003{
2746 unsigned int flags = 0; 3004 unsigned int flags = 0;
2747 3005
2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3006 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3007 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2750 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3008 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2751 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3009 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3010 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2753 3011 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3012 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3013
2754 return flags; 3014 return flags;
2755} 3015}
2756 3016
2757ecb_cold 3017ecb_cold
2758unsigned int 3018unsigned int
… …
2772#endif 3032#endif
2773#ifdef __FreeBSD__ 3033#ifdef __FreeBSD__
2774 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) */
2775#endif 3035#endif
2776 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
2777 return flags; 3046 return flags;
2778} 3047}
2779 3048
2780ecb_cold 3049ecb_cold
2781unsigned int 3050unsigned int
2782ev_embeddable_backends (void) EV_NOEXCEPT 3051ev_embeddable_backends (void) EV_NOEXCEPT
2783{ 3052{
2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3053 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2785 3054
2786 /* 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 */
2787 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 */
2788 flags &= ~EVBACKEND_EPOLL; 3057 flags &= ~EVBACKEND_EPOLL;
2789 3058
3059 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3060
2790 return flags; 3061 return flags;
2791} 3062}
2792 3063
2793unsigned int 3064unsigned int
2794ev_backend (EV_P) EV_NOEXCEPT 3065ev_backend (EV_P) EV_NOEXCEPT
… …
2846 acquire_cb = acquire; 3117 acquire_cb = acquire;
2847} 3118}
2848#endif 3119#endif
2849 3120
2850/* initialise a loop structure, must be zero-initialised */ 3121/* initialise a loop structure, must be zero-initialised */
2851noinline ecb_cold 3122ecb_noinline ecb_cold
2852static void 3123static void
2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 3124loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2854{ 3125{
2855 if (!backend) 3126 if (!backend)
2856 { 3127 {
… …
2911 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3182 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2912#endif 3183#endif
2913#if EV_USE_SIGNALFD 3184#if EV_USE_SIGNALFD
2914 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3185 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2915#endif 3186#endif
3187#if EV_USE_TIMERFD
3188 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3189#endif
2916 3190
2917 if (!(flags & EVBACKEND_MASK)) 3191 if (!(flags & EVBACKEND_MASK))
2918 flags |= ev_recommended_backends (); 3192 flags |= ev_recommended_backends ();
2919 3193
2920#if EV_USE_IOCP 3194#if EV_USE_IOCP
2921 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3195 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2922#endif 3196#endif
2923#if EV_USE_PORT 3197#if EV_USE_PORT
2924 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3198 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2925#endif 3199#endif
2926#if EV_USE_KQUEUE 3200#if EV_USE_KQUEUE
2927 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);
2928#endif 3208#endif
2929#if EV_USE_EPOLL 3209#if EV_USE_EPOLL
2930 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3210 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2931#endif 3211#endif
2932#if EV_USE_POLL 3212#if EV_USE_POLL
2933 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3213 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2934#endif 3214#endif
2935#if EV_USE_SELECT 3215#if EV_USE_SELECT
2936 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3216 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2937#endif 3217#endif
2938 3218
2939 ev_prepare_init (&pending_w, pendingcb); 3219 ev_prepare_init (&pending_w, pendingcb);
2940 3220
2941#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3221#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2958 return; 3238 return;
2959#endif 3239#endif
2960 3240
2961#if EV_CLEANUP_ENABLE 3241#if EV_CLEANUP_ENABLE
2962 /* queue cleanup watchers (and execute them) */ 3242 /* queue cleanup watchers (and execute them) */
2963 if (expect_false (cleanupcnt)) 3243 if (ecb_expect_false (cleanupcnt))
2964 { 3244 {
2965 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3245 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2966 EV_INVOKE_PENDING; 3246 EV_INVOKE_PENDING;
2967 } 3247 }
2968#endif 3248#endif
… …
2987#if EV_USE_SIGNALFD 3267#if EV_USE_SIGNALFD
2988 if (ev_is_active (&sigfd_w)) 3268 if (ev_is_active (&sigfd_w))
2989 close (sigfd); 3269 close (sigfd);
2990#endif 3270#endif
2991 3271
3272#if EV_USE_TIMERFD
3273 if (ev_is_active (&timerfd_w))
3274 close (timerfd);
3275#endif
3276
2992#if EV_USE_INOTIFY 3277#if EV_USE_INOTIFY
2993 if (fs_fd >= 0) 3278 if (fs_fd >= 0)
2994 close (fs_fd); 3279 close (fs_fd);
2995#endif 3280#endif
2996 3281
2997 if (backend_fd >= 0) 3282 if (backend_fd >= 0)
2998 close (backend_fd); 3283 close (backend_fd);
2999 3284
3000#if EV_USE_IOCP 3285#if EV_USE_IOCP
3001 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3286 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
3002#endif 3287#endif
3003#if EV_USE_PORT 3288#if EV_USE_PORT
3004 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3289 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3005#endif 3290#endif
3006#if EV_USE_KQUEUE 3291#if EV_USE_KQUEUE
3007 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);
3008#endif 3299#endif
3009#if EV_USE_EPOLL 3300#if EV_USE_EPOLL
3010 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3301 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3011#endif 3302#endif
3012#if EV_USE_POLL 3303#if EV_USE_POLL
3013 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3304 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3014#endif 3305#endif
3015#if EV_USE_SELECT 3306#if EV_USE_SELECT
3016 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3307 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3017#endif 3308#endif
3018 3309
3019 for (i = NUMPRI; i--; ) 3310 for (i = NUMPRI; i--; )
3020 { 3311 {
3021 array_free (pending, [i]); 3312 array_free (pending, [i]);
… …
3063 3354
3064inline_size void 3355inline_size void
3065loop_fork (EV_P) 3356loop_fork (EV_P)
3066{ 3357{
3067#if EV_USE_PORT 3358#if EV_USE_PORT
3068 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3359 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3069#endif 3360#endif
3070#if EV_USE_KQUEUE 3361#if EV_USE_KQUEUE
3071 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);
3072#endif 3369#endif
3073#if EV_USE_EPOLL 3370#if EV_USE_EPOLL
3074 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3371 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3075#endif 3372#endif
3076#if EV_USE_INOTIFY 3373#if EV_USE_INOTIFY
3077 infy_fork (EV_A); 3374 infy_fork (EV_A);
3078#endif 3375#endif
3079 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
3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3398 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3081 if (ev_is_active (&pipe_w) && postfork != 2) 3399 if (ev_is_active (&pipe_w))
3082 { 3400 {
3083 /* 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 */
3084 3402
3085 ev_ref (EV_A); 3403 ev_ref (EV_A);
3086 ev_io_stop (EV_A_ &pipe_w); 3404 ev_io_stop (EV_A_ &pipe_w);
3087 3405
3088 if (evpipe [0] >= 0) 3406 if (evpipe [0] >= 0)
3089 EV_WIN32_CLOSE_FD (evpipe [0]); 3407 EV_WIN32_CLOSE_FD (evpipe [0]);
3090 3408
3091 evpipe_init (EV_A); 3409 evpipe_init (EV_A);
3092 /* iterate over everything, in case we missed something before */ 3410 /* iterate over everything, in case we missed something before */
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3411 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3412 }
3413 #endif
3094 } 3414 }
3095#endif
3096 3415
3097 postfork = 0; 3416 postfork = 0;
3098} 3417}
3099 3418
3100#if EV_MULTIPLICITY 3419#if EV_MULTIPLICITY
… …
3116} 3435}
3117 3436
3118#endif /* multiplicity */ 3437#endif /* multiplicity */
3119 3438
3120#if EV_VERIFY 3439#if EV_VERIFY
3121noinline ecb_cold 3440ecb_noinline ecb_cold
3122static void 3441static void
3123verify_watcher (EV_P_ W w) 3442verify_watcher (EV_P_ W w)
3124{ 3443{
3125 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));
3126 3445
3127 if (w->pending) 3446 if (w->pending)
3128 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));
3129} 3448}
3130 3449
3131noinline ecb_cold 3450ecb_noinline ecb_cold
3132static void 3451static void
3133verify_heap (EV_P_ ANHE *heap, int N) 3452verify_heap (EV_P_ ANHE *heap, int N)
3134{ 3453{
3135 int i; 3454 int i;
3136 3455
… …
3142 3461
3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3462 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3144 } 3463 }
3145} 3464}
3146 3465
3147noinline ecb_cold 3466ecb_noinline ecb_cold
3148static void 3467static void
3149array_verify (EV_P_ W *ws, int cnt) 3468array_verify (EV_P_ W *ws, int cnt)
3150{ 3469{
3151 while (cnt--) 3470 while (cnt--)
3152 { 3471 {
… …
3301 count += pendingcnt [pri]; 3620 count += pendingcnt [pri];
3302 3621
3303 return count; 3622 return count;
3304} 3623}
3305 3624
3306noinline 3625ecb_noinline
3307void 3626void
3308ev_invoke_pending (EV_P) 3627ev_invoke_pending (EV_P)
3309{ 3628{
3310 pendingpri = NUMPRI; 3629 pendingpri = NUMPRI;
3311 3630
… …
3330/* make idle watchers pending. this handles the "call-idle */ 3649/* make idle watchers pending. this handles the "call-idle */
3331/* only when higher priorities are idle" logic */ 3650/* only when higher priorities are idle" logic */
3332inline_size void 3651inline_size void
3333idle_reify (EV_P) 3652idle_reify (EV_P)
3334{ 3653{
3335 if (expect_false (idleall)) 3654 if (ecb_expect_false (idleall))
3336 { 3655 {
3337 int pri; 3656 int pri;
3338 3657
3339 for (pri = NUMPRI; pri--; ) 3658 for (pri = NUMPRI; pri--; )
3340 { 3659 {
… …
3370 { 3689 {
3371 ev_at (w) += w->repeat; 3690 ev_at (w) += w->repeat;
3372 if (ev_at (w) < mn_now) 3691 if (ev_at (w) < mn_now)
3373 ev_at (w) = mn_now; 3692 ev_at (w) = mn_now;
3374 3693
3375 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.)));
3376 3695
3377 ANHE_at_cache (timers [HEAP0]); 3696 ANHE_at_cache (timers [HEAP0]);
3378 downheap (timers, timercnt, HEAP0); 3697 downheap (timers, timercnt, HEAP0);
3379 } 3698 }
3380 else 3699 else
… …
3389 } 3708 }
3390} 3709}
3391 3710
3392#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3393 3712
3394noinline 3713ecb_noinline
3395static void 3714static void
3396periodic_recalc (EV_P_ ev_periodic *w) 3715periodic_recalc (EV_P_ ev_periodic *w)
3397{ 3716{
3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3717 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3399 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);
… …
3402 while (at <= ev_rt_now) 3721 while (at <= ev_rt_now)
3403 { 3722 {
3404 ev_tstamp nat = at + w->interval; 3723 ev_tstamp nat = at + w->interval;
3405 3724
3406 /* when resolution fails us, we use ev_rt_now */ 3725 /* when resolution fails us, we use ev_rt_now */
3407 if (expect_false (nat == at)) 3726 if (ecb_expect_false (nat == at))
3408 { 3727 {
3409 at = ev_rt_now; 3728 at = ev_rt_now;
3410 break; 3729 break;
3411 } 3730 }
3412 3731
… …
3458 } 3777 }
3459} 3778}
3460 3779
3461/* simply recalculate all periodics */ 3780/* simply recalculate all periodics */
3462/* 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? */
3463noinline ecb_cold 3782ecb_noinline ecb_cold
3464static void 3783static void
3465periodics_reschedule (EV_P) 3784periodics_reschedule (EV_P)
3466{ 3785{
3467 int i; 3786 int i;
3468 3787
… …
3482 reheap (periodics, periodiccnt); 3801 reheap (periodics, periodiccnt);
3483} 3802}
3484#endif 3803#endif
3485 3804
3486/* adjust all timers by a given offset */ 3805/* adjust all timers by a given offset */
3487noinline ecb_cold 3806ecb_noinline ecb_cold
3488static void 3807static void
3489timers_reschedule (EV_P_ ev_tstamp adjust) 3808timers_reschedule (EV_P_ ev_tstamp adjust)
3490{ 3809{
3491 int i; 3810 int i;
3492 3811
… …
3502/* also detect if there was a timejump, and act accordingly */ 3821/* also detect if there was a timejump, and act accordingly */
3503inline_speed void 3822inline_speed void
3504time_update (EV_P_ ev_tstamp max_block) 3823time_update (EV_P_ ev_tstamp max_block)
3505{ 3824{
3506#if EV_USE_MONOTONIC 3825#if EV_USE_MONOTONIC
3507 if (expect_true (have_monotonic)) 3826 if (ecb_expect_true (have_monotonic))
3508 { 3827 {
3509 int i; 3828 int i;
3510 ev_tstamp odiff = rtmn_diff; 3829 ev_tstamp odiff = rtmn_diff;
3511 3830
3512 mn_now = get_clock (); 3831 mn_now = get_clock ();
3513 3832
3514 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3833 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3515 /* interpolate in the meantime */ 3834 /* interpolate in the meantime */
3516 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)))
3517 { 3836 {
3518 ev_rt_now = rtmn_diff + mn_now; 3837 ev_rt_now = rtmn_diff + mn_now;
3519 return; 3838 return;
3520 } 3839 }
3521 3840
… …
3535 ev_tstamp diff; 3854 ev_tstamp diff;
3536 rtmn_diff = ev_rt_now - mn_now; 3855 rtmn_diff = ev_rt_now - mn_now;
3537 3856
3538 diff = odiff - rtmn_diff; 3857 diff = odiff - rtmn_diff;
3539 3858
3540 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)))
3541 return; /* all is well */ 3860 return; /* all is well */
3542 3861
3543 ev_rt_now = ev_time (); 3862 ev_rt_now = ev_time ();
3544 mn_now = get_clock (); 3863 mn_now = get_clock ();
3545 now_floor = mn_now; 3864 now_floor = mn_now;
… …
3554 else 3873 else
3555#endif 3874#endif
3556 { 3875 {
3557 ev_rt_now = ev_time (); 3876 ev_rt_now = ev_time ();
3558 3877
3559 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)))
3560 { 3879 {
3561 /* 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 */
3562 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3881 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3563#if EV_PERIODIC_ENABLE 3882#if EV_PERIODIC_ENABLE
3564 periodics_reschedule (EV_A); 3883 periodics_reschedule (EV_A);
… …
3587#if EV_VERIFY >= 2 3906#if EV_VERIFY >= 2
3588 ev_verify (EV_A); 3907 ev_verify (EV_A);
3589#endif 3908#endif
3590 3909
3591#ifndef _WIN32 3910#ifndef _WIN32
3592 if (expect_false (curpid)) /* penalise the forking check even more */ 3911 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3593 if (expect_false (getpid () != curpid)) 3912 if (ecb_expect_false (getpid () != curpid))
3594 { 3913 {
3595 curpid = getpid (); 3914 curpid = getpid ();
3596 postfork = 1; 3915 postfork = 1;
3597 } 3916 }
3598#endif 3917#endif
3599 3918
3600#if EV_FORK_ENABLE 3919#if EV_FORK_ENABLE
3601 /* we might have forked, so queue fork handlers */ 3920 /* we might have forked, so queue fork handlers */
3602 if (expect_false (postfork)) 3921 if (ecb_expect_false (postfork))
3603 if (forkcnt) 3922 if (forkcnt)
3604 { 3923 {
3605 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3924 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3606 EV_INVOKE_PENDING; 3925 EV_INVOKE_PENDING;
3607 } 3926 }
3608#endif 3927#endif
3609 3928
3610#if EV_PREPARE_ENABLE 3929#if EV_PREPARE_ENABLE
3611 /* queue prepare watchers (and execute them) */ 3930 /* queue prepare watchers (and execute them) */
3612 if (expect_false (preparecnt)) 3931 if (ecb_expect_false (preparecnt))
3613 { 3932 {
3614 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3933 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3615 EV_INVOKE_PENDING; 3934 EV_INVOKE_PENDING;
3616 } 3935 }
3617#endif 3936#endif
3618 3937
3619 if (expect_false (loop_done)) 3938 if (ecb_expect_false (loop_done))
3620 break; 3939 break;
3621 3940
3622 /* we might have forked, so reify kernel state if necessary */ 3941 /* we might have forked, so reify kernel state if necessary */
3623 if (expect_false (postfork)) 3942 if (ecb_expect_false (postfork))
3624 loop_fork (EV_A); 3943 loop_fork (EV_A);
3625 3944
3626 /* update fd-related kernel structures */ 3945 /* update fd-related kernel structures */
3627 fd_reify (EV_A); 3946 fd_reify (EV_A);
3628 3947
… …
3633 3952
3634 /* remember old timestamp for io_blocktime calculation */ 3953 /* remember old timestamp for io_blocktime calculation */
3635 ev_tstamp prev_mn_now = mn_now; 3954 ev_tstamp prev_mn_now = mn_now;
3636 3955
3637 /* update time to cancel out callback processing overhead */ 3956 /* update time to cancel out callback processing overhead */
3638 time_update (EV_A_ 1e100); 3957 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3639 3958
3640 /* from now on, we want a pipe-wake-up */ 3959 /* from now on, we want a pipe-wake-up */
3641 pipe_write_wanted = 1; 3960 pipe_write_wanted = 1;
3642 3961
3643 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 */
3644 3963
3645 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3964 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3646 { 3965 {
3647 waittime = MAX_BLOCKTIME; 3966 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3648 3967
3649 if (timercnt) 3968 if (timercnt)
3650 { 3969 {
3651 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3970 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3652 if (waittime > to) waittime = to; 3971 if (waittime > to) waittime = to;
… …
3659 if (waittime > to) waittime = to; 3978 if (waittime > to) waittime = to;
3660 } 3979 }
3661#endif 3980#endif
3662 3981
3663 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3982 /* don't let timeouts decrease the waittime below timeout_blocktime */
3664 if (expect_false (waittime < timeout_blocktime)) 3983 if (ecb_expect_false (waittime < timeout_blocktime))
3665 waittime = timeout_blocktime; 3984 waittime = timeout_blocktime;
3666 3985
3667 /* at this point, we NEED to wait, so we have to ensure */ 3986 /* now there are two more special cases left, either we have
3668 /* 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 */
3669 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.)
3670 waittime = backend_mintime; 3994 : backend_mintime;
3671 3995
3672 /* extra check because io_blocktime is commonly 0 */ 3996 /* extra check because io_blocktime is commonly 0 */
3673 if (expect_false (io_blocktime)) 3997 if (ecb_expect_false (io_blocktime))
3674 { 3998 {
3675 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3999 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3676 4000
3677 if (sleeptime > waittime - backend_mintime) 4001 if (sleeptime > waittime - backend_mintime)
3678 sleeptime = waittime - backend_mintime; 4002 sleeptime = waittime - backend_mintime;
3679 4003
3680 if (expect_true (sleeptime > 0.)) 4004 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3681 { 4005 {
3682 ev_sleep (sleeptime); 4006 ev_sleep (sleeptime);
3683 waittime -= sleeptime; 4007 waittime -= sleeptime;
3684 } 4008 }
3685 } 4009 }
… …
3699 { 4023 {
3700 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)));
3701 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4025 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3702 } 4026 }
3703 4027
3704
3705 /* update ev_rt_now, do magic */ 4028 /* update ev_rt_now, do magic */
3706 time_update (EV_A_ waittime + sleeptime); 4029 time_update (EV_A_ waittime + sleeptime);
3707 } 4030 }
3708 4031
3709 /* queue pending timers and reschedule them */ 4032 /* queue pending timers and reschedule them */
… …
3717 idle_reify (EV_A); 4040 idle_reify (EV_A);
3718#endif 4041#endif
3719 4042
3720#if EV_CHECK_ENABLE 4043#if EV_CHECK_ENABLE
3721 /* queue check watchers, to be executed first */ 4044 /* queue check watchers, to be executed first */
3722 if (expect_false (checkcnt)) 4045 if (ecb_expect_false (checkcnt))
3723 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4046 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3724#endif 4047#endif
3725 4048
3726 EV_INVOKE_PENDING; 4049 EV_INVOKE_PENDING;
3727 } 4050 }
3728 while (expect_true ( 4051 while (ecb_expect_true (
3729 activecnt 4052 activecnt
3730 && !loop_done 4053 && !loop_done
3731 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4054 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3732 )); 4055 ));
3733 4056
… …
3760} 4083}
3761 4084
3762void 4085void
3763ev_now_update (EV_P) EV_NOEXCEPT 4086ev_now_update (EV_P) EV_NOEXCEPT
3764{ 4087{
3765 time_update (EV_A_ 1e100); 4088 time_update (EV_A_ EV_TSTAMP_HUGE);
3766} 4089}
3767 4090
3768void 4091void
3769ev_suspend (EV_P) EV_NOEXCEPT 4092ev_suspend (EV_P) EV_NOEXCEPT
3770{ 4093{
… …
3797inline_size void 4120inline_size void
3798wlist_del (WL *head, WL elem) 4121wlist_del (WL *head, WL elem)
3799{ 4122{
3800 while (*head) 4123 while (*head)
3801 { 4124 {
3802 if (expect_true (*head == elem)) 4125 if (ecb_expect_true (*head == elem))
3803 { 4126 {
3804 *head = elem->next; 4127 *head = elem->next;
3805 break; 4128 break;
3806 } 4129 }
3807 4130
… …
3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 4147ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3825{ 4148{
3826 W w_ = (W)w; 4149 W w_ = (W)w;
3827 int pending = w_->pending; 4150 int pending = w_->pending;
3828 4151
3829 if (expect_true (pending)) 4152 if (ecb_expect_true (pending))
3830 { 4153 {
3831 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4154 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3832 p->w = (W)&pending_w; 4155 p->w = (W)&pending_w;
3833 w_->pending = 0; 4156 w_->pending = 0;
3834 return p->events; 4157 return p->events;
… …
3861 w->active = 0; 4184 w->active = 0;
3862} 4185}
3863 4186
3864/*****************************************************************************/ 4187/*****************************************************************************/
3865 4188
3866noinline 4189ecb_noinline
3867void 4190void
3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4191ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3869{ 4192{
3870 int fd = w->fd; 4193 int fd = w->fd;
3871 4194
3872 if (expect_false (ev_is_active (w))) 4195 if (ecb_expect_false (ev_is_active (w)))
3873 return; 4196 return;
3874 4197
3875 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4198 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3876 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))));
3877 4200
4201#if EV_VERIFY >= 2
4202 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4203#endif
3878 EV_FREQUENT_CHECK; 4204 EV_FREQUENT_CHECK;
3879 4205
3880 ev_start (EV_A_ (W)w, 1); 4206 ev_start (EV_A_ (W)w, 1);
3881 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4207 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3882 wlist_add (&anfds[fd].head, (WL)w); 4208 wlist_add (&anfds[fd].head, (WL)w);
3883 4209
3884 /* common bug, apparently */ 4210 /* common bug, apparently */
3885 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));
3886 4212
… …
3888 w->events &= ~EV__IOFDSET; 4214 w->events &= ~EV__IOFDSET;
3889 4215
3890 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3891} 4217}
3892 4218
3893noinline 4219ecb_noinline
3894void 4220void
3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4221ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3896{ 4222{
3897 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3898 if (expect_false (!ev_is_active (w))) 4224 if (ecb_expect_false (!ev_is_active (w)))
3899 return; 4225 return;
3900 4226
3901 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));
3902 4228
4229#if EV_VERIFY >= 2
4230 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4231#endif
3903 EV_FREQUENT_CHECK; 4232 EV_FREQUENT_CHECK;
3904 4233
3905 wlist_del (&anfds[w->fd].head, (WL)w); 4234 wlist_del (&anfds[w->fd].head, (WL)w);
3906 ev_stop (EV_A_ (W)w); 4235 ev_stop (EV_A_ (W)w);
3907 4236
3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4237 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3909 4238
3910 EV_FREQUENT_CHECK; 4239 EV_FREQUENT_CHECK;
3911} 4240}
3912 4241
3913noinline 4242ecb_noinline
3914void 4243void
3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4244ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3916{ 4245{
3917 if (expect_false (ev_is_active (w))) 4246 if (ecb_expect_false (ev_is_active (w)))
3918 return; 4247 return;
3919 4248
3920 ev_at (w) += mn_now; 4249 ev_at (w) += mn_now;
3921 4250
3922 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.));
3923 4252
3924 EV_FREQUENT_CHECK; 4253 EV_FREQUENT_CHECK;
3925 4254
3926 ++timercnt; 4255 ++timercnt;
3927 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4256 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3928 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4257 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3929 ANHE_w (timers [ev_active (w)]) = (WT)w; 4258 ANHE_w (timers [ev_active (w)]) = (WT)w;
3930 ANHE_at_cache (timers [ev_active (w)]); 4259 ANHE_at_cache (timers [ev_active (w)]);
3931 upheap (timers, ev_active (w)); 4260 upheap (timers, ev_active (w));
3932 4261
3933 EV_FREQUENT_CHECK; 4262 EV_FREQUENT_CHECK;
3934 4263
3935 /*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));*/
3936} 4265}
3937 4266
3938noinline 4267ecb_noinline
3939void 4268void
3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4269ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3941{ 4270{
3942 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
3943 if (expect_false (!ev_is_active (w))) 4272 if (ecb_expect_false (!ev_is_active (w)))
3944 return; 4273 return;
3945 4274
3946 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3947 4276
3948 { 4277 {
… …
3950 4279
3951 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));
3952 4281
3953 --timercnt; 4282 --timercnt;
3954 4283
3955 if (expect_true (active < timercnt + HEAP0)) 4284 if (ecb_expect_true (active < timercnt + HEAP0))
3956 { 4285 {
3957 timers [active] = timers [timercnt + HEAP0]; 4286 timers [active] = timers [timercnt + HEAP0];
3958 adjustheap (timers, timercnt, active); 4287 adjustheap (timers, timercnt, active);
3959 } 4288 }
3960 } 4289 }
… …
3964 ev_stop (EV_A_ (W)w); 4293 ev_stop (EV_A_ (W)w);
3965 4294
3966 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3967} 4296}
3968 4297
3969noinline 4298ecb_noinline
3970void 4299void
3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4300ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3972{ 4301{
3973 EV_FREQUENT_CHECK; 4302 EV_FREQUENT_CHECK;
3974 4303
… …
3995} 4324}
3996 4325
3997ev_tstamp 4326ev_tstamp
3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT 4327ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3999{ 4328{
4000 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.));
4001} 4330}
4002 4331
4003#if EV_PERIODIC_ENABLE 4332#if EV_PERIODIC_ENABLE
4004noinline 4333ecb_noinline
4005void 4334void
4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4335ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4007{ 4336{
4008 if (expect_false (ev_is_active (w))) 4337 if (ecb_expect_false (ev_is_active (w)))
4009 return; 4338 return;
4339
4340#if EV_USE_TIMERFD
4341 if (timerfd == -2)
4342 evtimerfd_init (EV_A);
4343#endif
4010 4344
4011 if (w->reschedule_cb) 4345 if (w->reschedule_cb)
4012 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4346 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4013 else if (w->interval) 4347 else if (w->interval)
4014 { 4348 {
… …
4020 4354
4021 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
4022 4356
4023 ++periodiccnt; 4357 ++periodiccnt;
4024 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4358 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4025 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4359 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4026 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4360 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4027 ANHE_at_cache (periodics [ev_active (w)]); 4361 ANHE_at_cache (periodics [ev_active (w)]);
4028 upheap (periodics, ev_active (w)); 4362 upheap (periodics, ev_active (w));
4029 4363
4030 EV_FREQUENT_CHECK; 4364 EV_FREQUENT_CHECK;
4031 4365
4032 /*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));*/
4033} 4367}
4034 4368
4035noinline 4369ecb_noinline
4036void 4370void
4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4371ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4038{ 4372{
4039 clear_pending (EV_A_ (W)w); 4373 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4374 if (ecb_expect_false (!ev_is_active (w)))
4041 return; 4375 return;
4042 4376
4043 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
4044 4378
4045 { 4379 {
… …
4047 4381
4048 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));
4049 4383
4050 --periodiccnt; 4384 --periodiccnt;
4051 4385
4052 if (expect_true (active < periodiccnt + HEAP0)) 4386 if (ecb_expect_true (active < periodiccnt + HEAP0))
4053 { 4387 {
4054 periodics [active] = periodics [periodiccnt + HEAP0]; 4388 periodics [active] = periodics [periodiccnt + HEAP0];
4055 adjustheap (periodics, periodiccnt, active); 4389 adjustheap (periodics, periodiccnt, active);
4056 } 4390 }
4057 } 4391 }
… …
4059 ev_stop (EV_A_ (W)w); 4393 ev_stop (EV_A_ (W)w);
4060 4394
4061 EV_FREQUENT_CHECK; 4395 EV_FREQUENT_CHECK;
4062} 4396}
4063 4397
4064noinline 4398ecb_noinline
4065void 4399void
4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4400ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4067{ 4401{
4068 /* TODO: use adjustheap and recalculation */ 4402 /* TODO: use adjustheap and recalculation */
4069 ev_periodic_stop (EV_A_ w); 4403 ev_periodic_stop (EV_A_ w);
… …
4075# define SA_RESTART 0 4409# define SA_RESTART 0
4076#endif 4410#endif
4077 4411
4078#if EV_SIGNAL_ENABLE 4412#if EV_SIGNAL_ENABLE
4079 4413
4080noinline 4414ecb_noinline
4081void 4415void
4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4416ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4083{ 4417{
4084 if (expect_false (ev_is_active (w))) 4418 if (ecb_expect_false (ev_is_active (w)))
4085 return; 4419 return;
4086 4420
4087 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));
4088 4422
4089#if EV_MULTIPLICITY 4423#if EV_MULTIPLICITY
… …
4158 } 4492 }
4159 4493
4160 EV_FREQUENT_CHECK; 4494 EV_FREQUENT_CHECK;
4161} 4495}
4162 4496
4163noinline 4497ecb_noinline
4164void 4498void
4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4499ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4166{ 4500{
4167 clear_pending (EV_A_ (W)w); 4501 clear_pending (EV_A_ (W)w);
4168 if (expect_false (!ev_is_active (w))) 4502 if (ecb_expect_false (!ev_is_active (w)))
4169 return; 4503 return;
4170 4504
4171 EV_FREQUENT_CHECK; 4505 EV_FREQUENT_CHECK;
4172 4506
4173 wlist_del (&signals [w->signum - 1].head, (WL)w); 4507 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4540ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4207{ 4541{
4208#if EV_MULTIPLICITY 4542#if EV_MULTIPLICITY
4209 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));
4210#endif 4544#endif
4211 if (expect_false (ev_is_active (w))) 4545 if (ecb_expect_false (ev_is_active (w)))
4212 return; 4546 return;
4213 4547
4214 EV_FREQUENT_CHECK; 4548 EV_FREQUENT_CHECK;
4215 4549
4216 ev_start (EV_A_ (W)w, 1); 4550 ev_start (EV_A_ (W)w, 1);
… …
4221 4555
4222void 4556void
4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4557ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4224{ 4558{
4225 clear_pending (EV_A_ (W)w); 4559 clear_pending (EV_A_ (W)w);
4226 if (expect_false (!ev_is_active (w))) 4560 if (ecb_expect_false (!ev_is_active (w)))
4227 return; 4561 return;
4228 4562
4229 EV_FREQUENT_CHECK; 4563 EV_FREQUENT_CHECK;
4230 4564
4231 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4565 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4245 4579
4246#define DEF_STAT_INTERVAL 5.0074891 4580#define DEF_STAT_INTERVAL 5.0074891
4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4581#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4248#define MIN_STAT_INTERVAL 0.1074891 4582#define MIN_STAT_INTERVAL 0.1074891
4249 4583
4250noinline 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);
4251 4585
4252#if EV_USE_INOTIFY 4586#if EV_USE_INOTIFY
4253 4587
4254/* 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 */
4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4589# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4256 4590
4257noinline 4591ecb_noinline
4258static void 4592static void
4259infy_add (EV_P_ ev_stat *w) 4593infy_add (EV_P_ ev_stat *w)
4260{ 4594{
4261 w->wd = inotify_add_watch (fs_fd, w->path, 4595 w->wd = inotify_add_watch (fs_fd, w->path,
4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4596 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4327 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4661 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4328 ev_timer_again (EV_A_ &w->timer); 4662 ev_timer_again (EV_A_ &w->timer);
4329 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4663 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4330} 4664}
4331 4665
4332noinline 4666ecb_noinline
4333static void 4667static void
4334infy_del (EV_P_ ev_stat *w) 4668infy_del (EV_P_ ev_stat *w)
4335{ 4669{
4336 int slot; 4670 int slot;
4337 int wd = w->wd; 4671 int wd = w->wd;
… …
4345 4679
4346 /* remove this watcher, if others are watching it, they will rearm */ 4680 /* remove this watcher, if others are watching it, they will rearm */
4347 inotify_rm_watch (fs_fd, wd); 4681 inotify_rm_watch (fs_fd, wd);
4348} 4682}
4349 4683
4350noinline 4684ecb_noinline
4351static void 4685static void
4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4686infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4353{ 4687{
4354 if (slot < 0) 4688 if (slot < 0)
4355 /* overflow, need to check for all hash slots */ 4689 /* overflow, need to check for all hash slots */
… …
4501 w->attr.st_nlink = 0; 4835 w->attr.st_nlink = 0;
4502 else if (!w->attr.st_nlink) 4836 else if (!w->attr.st_nlink)
4503 w->attr.st_nlink = 1; 4837 w->attr.st_nlink = 1;
4504} 4838}
4505 4839
4506noinline 4840ecb_noinline
4507static void 4841static void
4508stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4842stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4509{ 4843{
4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4844 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4511 4845
… …
4545} 4879}
4546 4880
4547void 4881void
4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 4882ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4549{ 4883{
4550 if (expect_false (ev_is_active (w))) 4884 if (ecb_expect_false (ev_is_active (w)))
4551 return; 4885 return;
4552 4886
4553 ev_stat_stat (EV_A_ w); 4887 ev_stat_stat (EV_A_ w);
4554 4888
4555 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4889 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4577 4911
4578void 4912void
4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 4913ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4580{ 4914{
4581 clear_pending (EV_A_ (W)w); 4915 clear_pending (EV_A_ (W)w);
4582 if (expect_false (!ev_is_active (w))) 4916 if (ecb_expect_false (!ev_is_active (w)))
4583 return; 4917 return;
4584 4918
4585 EV_FREQUENT_CHECK; 4919 EV_FREQUENT_CHECK;
4586 4920
4587#if EV_USE_INOTIFY 4921#if EV_USE_INOTIFY
… …
4602 4936
4603#if EV_IDLE_ENABLE 4937#if EV_IDLE_ENABLE
4604void 4938void
4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 4939ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4606{ 4940{
4607 if (expect_false (ev_is_active (w))) 4941 if (ecb_expect_false (ev_is_active (w)))
4608 return; 4942 return;
4609 4943
4610 pri_adjust (EV_A_ (W)w); 4944 pri_adjust (EV_A_ (W)w);
4611 4945
4612 EV_FREQUENT_CHECK; 4946 EV_FREQUENT_CHECK;
… …
4615 int active = ++idlecnt [ABSPRI (w)]; 4949 int active = ++idlecnt [ABSPRI (w)];
4616 4950
4617 ++idleall; 4951 ++idleall;
4618 ev_start (EV_A_ (W)w, active); 4952 ev_start (EV_A_ (W)w, active);
4619 4953
4620 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);
4621 idles [ABSPRI (w)][active - 1] = w; 4955 idles [ABSPRI (w)][active - 1] = w;
4622 } 4956 }
4623 4957
4624 EV_FREQUENT_CHECK; 4958 EV_FREQUENT_CHECK;
4625} 4959}
4626 4960
4627void 4961void
4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 4962ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4629{ 4963{
4630 clear_pending (EV_A_ (W)w); 4964 clear_pending (EV_A_ (W)w);
4631 if (expect_false (!ev_is_active (w))) 4965 if (ecb_expect_false (!ev_is_active (w)))
4632 return; 4966 return;
4633 4967
4634 EV_FREQUENT_CHECK; 4968 EV_FREQUENT_CHECK;
4635 4969
4636 { 4970 {
… …
4649 4983
4650#if EV_PREPARE_ENABLE 4984#if EV_PREPARE_ENABLE
4651void 4985void
4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 4986ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4653{ 4987{
4654 if (expect_false (ev_is_active (w))) 4988 if (ecb_expect_false (ev_is_active (w)))
4655 return; 4989 return;
4656 4990
4657 EV_FREQUENT_CHECK; 4991 EV_FREQUENT_CHECK;
4658 4992
4659 ev_start (EV_A_ (W)w, ++preparecnt); 4993 ev_start (EV_A_ (W)w, ++preparecnt);
4660 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4994 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4661 prepares [preparecnt - 1] = w; 4995 prepares [preparecnt - 1] = w;
4662 4996
4663 EV_FREQUENT_CHECK; 4997 EV_FREQUENT_CHECK;
4664} 4998}
4665 4999
4666void 5000void
4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 5001ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4668{ 5002{
4669 clear_pending (EV_A_ (W)w); 5003 clear_pending (EV_A_ (W)w);
4670 if (expect_false (!ev_is_active (w))) 5004 if (ecb_expect_false (!ev_is_active (w)))
4671 return; 5005 return;
4672 5006
4673 EV_FREQUENT_CHECK; 5007 EV_FREQUENT_CHECK;
4674 5008
4675 { 5009 {
… …
4687 5021
4688#if EV_CHECK_ENABLE 5022#if EV_CHECK_ENABLE
4689void 5023void
4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 5024ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4691{ 5025{
4692 if (expect_false (ev_is_active (w))) 5026 if (ecb_expect_false (ev_is_active (w)))
4693 return; 5027 return;
4694 5028
4695 EV_FREQUENT_CHECK; 5029 EV_FREQUENT_CHECK;
4696 5030
4697 ev_start (EV_A_ (W)w, ++checkcnt); 5031 ev_start (EV_A_ (W)w, ++checkcnt);
4698 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5032 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4699 checks [checkcnt - 1] = w; 5033 checks [checkcnt - 1] = w;
4700 5034
4701 EV_FREQUENT_CHECK; 5035 EV_FREQUENT_CHECK;
4702} 5036}
4703 5037
4704void 5038void
4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 5039ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4706{ 5040{
4707 clear_pending (EV_A_ (W)w); 5041 clear_pending (EV_A_ (W)w);
4708 if (expect_false (!ev_is_active (w))) 5042 if (ecb_expect_false (!ev_is_active (w)))
4709 return; 5043 return;
4710 5044
4711 EV_FREQUENT_CHECK; 5045 EV_FREQUENT_CHECK;
4712 5046
4713 { 5047 {
… …
4722 EV_FREQUENT_CHECK; 5056 EV_FREQUENT_CHECK;
4723} 5057}
4724#endif 5058#endif
4725 5059
4726#if EV_EMBED_ENABLE 5060#if EV_EMBED_ENABLE
4727noinline 5061ecb_noinline
4728void 5062void
4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 5063ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4730{ 5064{
4731 ev_run (w->other, EVRUN_NOWAIT); 5065 ev_run (w->other, EVRUN_NOWAIT);
4732} 5066}
… …
4756 ev_run (EV_A_ EVRUN_NOWAIT); 5090 ev_run (EV_A_ EVRUN_NOWAIT);
4757 } 5091 }
4758 } 5092 }
4759} 5093}
4760 5094
5095#if EV_FORK_ENABLE
4761static void 5096static void
4762embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5097embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4763{ 5098{
4764 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));
4765 5100
… …
4772 ev_run (EV_A_ EVRUN_NOWAIT); 5107 ev_run (EV_A_ EVRUN_NOWAIT);
4773 } 5108 }
4774 5109
4775 ev_embed_start (EV_A_ w); 5110 ev_embed_start (EV_A_ w);
4776} 5111}
5112#endif
4777 5113
4778#if 0 5114#if 0
4779static void 5115static void
4780embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5116embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4781{ 5117{
… …
4784#endif 5120#endif
4785 5121
4786void 5122void
4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 5123ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4788{ 5124{
4789 if (expect_false (ev_is_active (w))) 5125 if (ecb_expect_false (ev_is_active (w)))
4790 return; 5126 return;
4791 5127
4792 { 5128 {
4793 EV_P = w->other; 5129 EV_P = w->other;
4794 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 ()));
… …
4802 5138
4803 ev_prepare_init (&w->prepare, embed_prepare_cb); 5139 ev_prepare_init (&w->prepare, embed_prepare_cb);
4804 ev_set_priority (&w->prepare, EV_MINPRI); 5140 ev_set_priority (&w->prepare, EV_MINPRI);
4805 ev_prepare_start (EV_A_ &w->prepare); 5141 ev_prepare_start (EV_A_ &w->prepare);
4806 5142
5143#if EV_FORK_ENABLE
4807 ev_fork_init (&w->fork, embed_fork_cb); 5144 ev_fork_init (&w->fork, embed_fork_cb);
4808 ev_fork_start (EV_A_ &w->fork); 5145 ev_fork_start (EV_A_ &w->fork);
5146#endif
4809 5147
4810 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5148 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4811 5149
4812 ev_start (EV_A_ (W)w, 1); 5150 ev_start (EV_A_ (W)w, 1);
4813 5151
… …
4816 5154
4817void 5155void
4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 5156ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4819{ 5157{
4820 clear_pending (EV_A_ (W)w); 5158 clear_pending (EV_A_ (W)w);
4821 if (expect_false (!ev_is_active (w))) 5159 if (ecb_expect_false (!ev_is_active (w)))
4822 return; 5160 return;
4823 5161
4824 EV_FREQUENT_CHECK; 5162 EV_FREQUENT_CHECK;
4825 5163
4826 ev_io_stop (EV_A_ &w->io); 5164 ev_io_stop (EV_A_ &w->io);
4827 ev_prepare_stop (EV_A_ &w->prepare); 5165 ev_prepare_stop (EV_A_ &w->prepare);
5166#if EV_FORK_ENABLE
4828 ev_fork_stop (EV_A_ &w->fork); 5167 ev_fork_stop (EV_A_ &w->fork);
5168#endif
4829 5169
4830 ev_stop (EV_A_ (W)w); 5170 ev_stop (EV_A_ (W)w);
4831 5171
4832 EV_FREQUENT_CHECK; 5172 EV_FREQUENT_CHECK;
4833} 5173}
… …
4835 5175
4836#if EV_FORK_ENABLE 5176#if EV_FORK_ENABLE
4837void 5177void
4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 5178ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4839{ 5179{
4840 if (expect_false (ev_is_active (w))) 5180 if (ecb_expect_false (ev_is_active (w)))
4841 return; 5181 return;
4842 5182
4843 EV_FREQUENT_CHECK; 5183 EV_FREQUENT_CHECK;
4844 5184
4845 ev_start (EV_A_ (W)w, ++forkcnt); 5185 ev_start (EV_A_ (W)w, ++forkcnt);
4846 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5186 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4847 forks [forkcnt - 1] = w; 5187 forks [forkcnt - 1] = w;
4848 5188
4849 EV_FREQUENT_CHECK; 5189 EV_FREQUENT_CHECK;
4850} 5190}
4851 5191
4852void 5192void
4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5193ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4854{ 5194{
4855 clear_pending (EV_A_ (W)w); 5195 clear_pending (EV_A_ (W)w);
4856 if (expect_false (!ev_is_active (w))) 5196 if (ecb_expect_false (!ev_is_active (w)))
4857 return; 5197 return;
4858 5198
4859 EV_FREQUENT_CHECK; 5199 EV_FREQUENT_CHECK;
4860 5200
4861 { 5201 {
… …
4873 5213
4874#if EV_CLEANUP_ENABLE 5214#if EV_CLEANUP_ENABLE
4875void 5215void
4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5216ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4877{ 5217{
4878 if (expect_false (ev_is_active (w))) 5218 if (ecb_expect_false (ev_is_active (w)))
4879 return; 5219 return;
4880 5220
4881 EV_FREQUENT_CHECK; 5221 EV_FREQUENT_CHECK;
4882 5222
4883 ev_start (EV_A_ (W)w, ++cleanupcnt); 5223 ev_start (EV_A_ (W)w, ++cleanupcnt);
4884 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5224 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4885 cleanups [cleanupcnt - 1] = w; 5225 cleanups [cleanupcnt - 1] = w;
4886 5226
4887 /* cleanup watchers should never keep a refcount on the loop */ 5227 /* cleanup watchers should never keep a refcount on the loop */
4888 ev_unref (EV_A); 5228 ev_unref (EV_A);
4889 EV_FREQUENT_CHECK; 5229 EV_FREQUENT_CHECK;
… …
4891 5231
4892void 5232void
4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5233ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4894{ 5234{
4895 clear_pending (EV_A_ (W)w); 5235 clear_pending (EV_A_ (W)w);
4896 if (expect_false (!ev_is_active (w))) 5236 if (ecb_expect_false (!ev_is_active (w)))
4897 return; 5237 return;
4898 5238
4899 EV_FREQUENT_CHECK; 5239 EV_FREQUENT_CHECK;
4900 ev_ref (EV_A); 5240 ev_ref (EV_A);
4901 5241
… …
4914 5254
4915#if EV_ASYNC_ENABLE 5255#if EV_ASYNC_ENABLE
4916void 5256void
4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5257ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4918{ 5258{
4919 if (expect_false (ev_is_active (w))) 5259 if (ecb_expect_false (ev_is_active (w)))
4920 return; 5260 return;
4921 5261
4922 w->sent = 0; 5262 w->sent = 0;
4923 5263
4924 evpipe_init (EV_A); 5264 evpipe_init (EV_A);
4925 5265
4926 EV_FREQUENT_CHECK; 5266 EV_FREQUENT_CHECK;
4927 5267
4928 ev_start (EV_A_ (W)w, ++asynccnt); 5268 ev_start (EV_A_ (W)w, ++asynccnt);
4929 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5269 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4930 asyncs [asynccnt - 1] = w; 5270 asyncs [asynccnt - 1] = w;
4931 5271
4932 EV_FREQUENT_CHECK; 5272 EV_FREQUENT_CHECK;
4933} 5273}
4934 5274
4935void 5275void
4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5276ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4937{ 5277{
4938 clear_pending (EV_A_ (W)w); 5278 clear_pending (EV_A_ (W)w);
4939 if (expect_false (!ev_is_active (w))) 5279 if (ecb_expect_false (!ev_is_active (w)))
4940 return; 5280 return;
4941 5281
4942 EV_FREQUENT_CHECK; 5282 EV_FREQUENT_CHECK;
4943 5283
4944 { 5284 {

Diff Legend

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