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

Comparing libev/ev.c (file contents):
Revision 1.490 by root, Thu Jun 20 22:44:59 2019 UTC vs.
Revision 1.501 by root, Mon Jul 1 21:47:42 2019 UTC

… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 132# endif
124# else 133# else
… …
316#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
317# define EV_USE_PORT 0 326# define EV_USE_PORT 0
318#endif 327#endif
319 328
320#ifndef EV_USE_LINUXAIO 329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
321# define EV_USE_LINUXAIO 0 333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
322#endif 343#endif
323 344
324#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
326# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
… …
383/* aix's poll.h seems to cause lots of trouble */ 404/* aix's poll.h seems to cause lots of trouble */
384#ifdef _AIX 405#ifdef _AIX
385/* AIX has a completely broken poll.h header */ 406/* AIX has a completely broken poll.h header */
386# undef EV_USE_POLL 407# undef EV_USE_POLL
387# define EV_USE_POLL 0 408# define EV_USE_POLL 0
388#endif
389
390#if EV_USE_LINUXAIO
391# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
392#endif 409#endif
393 410
394/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 411/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
395/* which makes programs even slower. might work on other unices, too. */ 412/* which makes programs even slower. might work on other unices, too. */
396#if EV_USE_CLOCK_SYSCALL 413#if EV_USE_CLOCK_SYSCALL
397# include <sys/syscall.h> 414# include <sys/syscall.h>
398# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
399# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
400# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
401# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
402# else 420# else
403# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
404# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
405# endif 423# endif
406#endif 424#endif
… …
424 442
425#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
426/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
427# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
428# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
453# undef EV_USE_LINUXAIO
454# define EV_USE_LINUXAIO 0
455# else
456# define EV_NEED_SYSCALL 1
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !__alpha && !SYS_io_uring_setup
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
429# endif 472# endif
430#endif 473#endif
431 474
432#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
433# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
475 uint32_t ssi_signo; 518 uint32_t ssi_signo;
476 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
477}; 520};
478#endif 521#endif
479 522
480/**/ 523/*****************************************************************************/
524
525#if EV_NEED_SYSCALL
526
527#include <sys/syscall.h>
528
529/*
530 * define some syscall wrappers for common architectures
531 * this is mostly for nice looks during debugging, not performance.
532 * our syscalls return < 0, not == -1, on error. which is good
533 * enough for linux aio.
534 * TODO: arm is also common nowadays, maybe even mips and x86
535 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
536 */
537#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
538 /* the costly errno access probably kills this for size optimisation */
539
540 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5) \
541 ({ \
542 long res; \
543 register unsigned long r5 __asm__ ("r8" ); \
544 register unsigned long r4 __asm__ ("r10"); \
545 register unsigned long r3 __asm__ ("rdx"); \
546 register unsigned long r2 __asm__ ("rsi"); \
547 register unsigned long r1 __asm__ ("rdi"); \
548 if (narg >= 5) r5 = (unsigned long)(arg5); \
549 if (narg >= 4) r4 = (unsigned long)(arg4); \
550 if (narg >= 3) r3 = (unsigned long)(arg3); \
551 if (narg >= 2) r2 = (unsigned long)(arg2); \
552 if (narg >= 1) r1 = (unsigned long)(arg1); \
553 __asm__ __volatile__ ( \
554 "syscall\n\t" \
555 : "=a" (res) \
556 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
557 : "cc", "r11", "cx", "memory"); \
558 errno = -res; \
559 res; \
560 })
561
562#endif
563
564#ifdef ev_syscall
565 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0
566 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0)
567 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0)
568 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0)
569 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0)
570 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5)
571#else
572 #define ev_syscall0(nr) syscall (nr)
573 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
574 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
575 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
576 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
577 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
578#endif
579
580#endif
581
582/*****************************************************************************/
481 583
482#if EV_VERIFY >= 3 584#if EV_VERIFY >= 3
483# define EV_FREQUENT_CHECK ev_verify (EV_A) 585# define EV_FREQUENT_CHECK ev_verify (EV_A)
484#else 586#else
485# define EV_FREQUENT_CHECK do { } while (0) 587# define EV_FREQUENT_CHECK do { } while (0)
… …
542 644
543#ifndef ECB_H 645#ifndef ECB_H
544#define ECB_H 646#define ECB_H
545 647
546/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
547#define ECB_VERSION 0x00010005 649#define ECB_VERSION 0x00010006
548 650
549#ifdef _WIN32 651#ifdef _WIN32
550 typedef signed char int8_t; 652 typedef signed char int8_t;
551 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
552 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
666 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 768 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
667#endif 769#endif
668 770
669#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
670 #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")
671 #if __i386 || __i386__ 774 #if __i386 || __i386__
672 #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")
673 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
674 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
675 #elif ECB_GCC_AMD64 778 #elif ECB_GCC_AMD64
… …
725 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
726 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
727 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
728 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
729 #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)
730 834
731 #elif ECB_CLANG_EXTENSION(c_atomic) 835 #elif ECB_CLANG_EXTENSION(c_atomic)
732 /* see comment below (stdatomic.h) about the C11 memory model. */ 836 /* see comment below (stdatomic.h) about the C11 memory model. */
733 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
734 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
735 #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)
736 841
737 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
738 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
739 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
740 /* 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... */
… …
750 #elif defined _WIN32 855 #elif defined _WIN32
751 #include <WinNT.h> 856 #include <WinNT.h>
752 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
753 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
754 #include <mbarrier.h> 859 #include <mbarrier.h>
755 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
756 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
757 #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 ()
758 #elif __xlC__ 864 #elif __xlC__
759 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
760 #endif 866 #endif
761#endif 867#endif
762 868
763#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
764 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
765 /* 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, */
766 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
767 #include <stdatomic.h> 873 #include <stdatomic.h>
768 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
769 /* any fence other than seq_cst, which isn't very efficient for us. */
770 /* Why that is, we don't know - either the C11 memory model is quite useless */
771 /* for most usages, or gcc and clang have a bug */
772 /* I *currently* lean towards the latter, and inefficiently implement */
773 /* all three of ecb's fences as a seq_cst fence */
774 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
775 /* for all __atomic_thread_fence's except seq_cst */
776 #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)
777 #endif 877 #endif
778#endif 878#endif
779 879
780#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
781 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
799 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 899 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
800#endif 900#endif
801 901
802#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
803 #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 */
804#endif 908#endif
805 909
806/*****************************************************************************/ 910/*****************************************************************************/
807 911
808#if ECB_CPP 912#if ECB_CPP
… …
1517/* ECB.H END */ 1621/* ECB.H END */
1518 1622
1519#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1520/* 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
1521 * 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
1522 * 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
1523 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
1524 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
1525 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
1526 */ 1630 */
1527# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1531# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1532# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1533# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1534#endif 1638#endif
1535 1639
1536#define expect_false(cond) ecb_expect_false (cond)
1537#define expect_true(cond) ecb_expect_true (cond)
1538#define noinline ecb_noinline
1539
1540#define inline_size ecb_inline 1640#define inline_size ecb_inline
1541 1641
1542#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1543# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1544#else 1644#else
1545# define inline_speed noinline static 1645# define inline_speed ecb_noinline static
1546#endif 1646#endif
1547 1647
1548#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1648#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1549 1649
1550#if EV_MINPRI == EV_MAXPRI 1650#if EV_MINPRI == EV_MAXPRI
… …
1586# include "ev_win32.c" 1686# include "ev_win32.c"
1587#endif 1687#endif
1588 1688
1589/*****************************************************************************/ 1689/*****************************************************************************/
1590 1690
1691#if EV_USE_LINUXAIO
1692# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1693#endif
1694
1591/* define a suitable floor function (only used by periodics atm) */ 1695/* define a suitable floor function (only used by periodics atm) */
1592 1696
1593#if EV_USE_FLOOR 1697#if EV_USE_FLOOR
1594# include <math.h> 1698# include <math.h>
1595# define ev_floor(v) floor (v) 1699# define ev_floor(v) floor (v)
1596#else 1700#else
1597 1701
1598#include <float.h> 1702#include <float.h>
1599 1703
1600/* a floor() replacement function, should be independent of ev_tstamp type */ 1704/* a floor() replacement function, should be independent of ev_tstamp type */
1601noinline 1705ecb_noinline
1602static ev_tstamp 1706static ev_tstamp
1603ev_floor (ev_tstamp v) 1707ev_floor (ev_tstamp v)
1604{ 1708{
1605 /* the choice of shift factor is not terribly important */ 1709 /* the choice of shift factor is not terribly important */
1606#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1710#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
… …
1608#else 1712#else
1609 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1713 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1610#endif 1714#endif
1611 1715
1612 /* argument too large for an unsigned long? */ 1716 /* argument too large for an unsigned long? */
1613 if (expect_false (v >= shift)) 1717 if (ecb_expect_false (v >= shift))
1614 { 1718 {
1615 ev_tstamp f; 1719 ev_tstamp f;
1616 1720
1617 if (v == v - 1.) 1721 if (v == v - 1.)
1618 return v; /* very large number */ 1722 return v; /* very large number */
… …
1620 f = shift * ev_floor (v * (1. / shift)); 1724 f = shift * ev_floor (v * (1. / shift));
1621 return f + ev_floor (v - f); 1725 return f + ev_floor (v - f);
1622 } 1726 }
1623 1727
1624 /* special treatment for negative args? */ 1728 /* special treatment for negative args? */
1625 if (expect_false (v < 0.)) 1729 if (ecb_expect_false (v < 0.))
1626 { 1730 {
1627 ev_tstamp f = -ev_floor (-v); 1731 ev_tstamp f = -ev_floor (-v);
1628 1732
1629 return f - (f == v ? 0 : 1); 1733 return f - (f == v ? 0 : 1);
1630 } 1734 }
… …
1639 1743
1640#ifdef __linux 1744#ifdef __linux
1641# include <sys/utsname.h> 1745# include <sys/utsname.h>
1642#endif 1746#endif
1643 1747
1644noinline ecb_cold 1748ecb_noinline ecb_cold
1645static unsigned int 1749static unsigned int
1646ev_linux_version (void) 1750ev_linux_version (void)
1647{ 1751{
1648#ifdef __linux 1752#ifdef __linux
1649 unsigned int v = 0; 1753 unsigned int v = 0;
… …
1679} 1783}
1680 1784
1681/*****************************************************************************/ 1785/*****************************************************************************/
1682 1786
1683#if EV_AVOID_STDIO 1787#if EV_AVOID_STDIO
1684noinline ecb_cold 1788ecb_noinline ecb_cold
1685static void 1789static void
1686ev_printerr (const char *msg) 1790ev_printerr (const char *msg)
1687{ 1791{
1688 write (STDERR_FILENO, msg, strlen (msg)); 1792 write (STDERR_FILENO, msg, strlen (msg));
1689} 1793}
… …
1696ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 1800ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1697{ 1801{
1698 syserr_cb = cb; 1802 syserr_cb = cb;
1699} 1803}
1700 1804
1701noinline ecb_cold 1805ecb_noinline ecb_cold
1702static void 1806static void
1703ev_syserr (const char *msg) 1807ev_syserr (const char *msg)
1704{ 1808{
1705 if (!msg) 1809 if (!msg)
1706 msg = "(libev) system error"; 1810 msg = "(libev) system error";
… …
1852 static int ev_default_loop_ptr; 1956 static int ev_default_loop_ptr;
1853 1957
1854#endif 1958#endif
1855 1959
1856#if EV_FEATURE_API 1960#if EV_FEATURE_API
1857# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1961# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1858# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1962# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1859# define EV_INVOKE_PENDING invoke_cb (EV_A) 1963# define EV_INVOKE_PENDING invoke_cb (EV_A)
1860#else 1964#else
1861# define EV_RELEASE_CB (void)0 1965# define EV_RELEASE_CB (void)0
1862# define EV_ACQUIRE_CB (void)0 1966# define EV_ACQUIRE_CB (void)0
1863# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1967# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1870#ifndef EV_HAVE_EV_TIME 1974#ifndef EV_HAVE_EV_TIME
1871ev_tstamp 1975ev_tstamp
1872ev_time (void) EV_NOEXCEPT 1976ev_time (void) EV_NOEXCEPT
1873{ 1977{
1874#if EV_USE_REALTIME 1978#if EV_USE_REALTIME
1875 if (expect_true (have_realtime)) 1979 if (ecb_expect_true (have_realtime))
1876 { 1980 {
1877 struct timespec ts; 1981 struct timespec ts;
1878 clock_gettime (CLOCK_REALTIME, &ts); 1982 clock_gettime (CLOCK_REALTIME, &ts);
1879 return ts.tv_sec + ts.tv_nsec * 1e-9; 1983 return ts.tv_sec + ts.tv_nsec * 1e-9;
1880 } 1984 }
… …
1888 1992
1889inline_size ev_tstamp 1993inline_size ev_tstamp
1890get_clock (void) 1994get_clock (void)
1891{ 1995{
1892#if EV_USE_MONOTONIC 1996#if EV_USE_MONOTONIC
1893 if (expect_true (have_monotonic)) 1997 if (ecb_expect_true (have_monotonic))
1894 { 1998 {
1895 struct timespec ts; 1999 struct timespec ts;
1896 clock_gettime (CLOCK_MONOTONIC, &ts); 2000 clock_gettime (CLOCK_MONOTONIC, &ts);
1897 return ts.tv_sec + ts.tv_nsec * 1e-9; 2001 return ts.tv_sec + ts.tv_nsec * 1e-9;
1898 } 2002 }
… …
1960 } 2064 }
1961 2065
1962 return ncur; 2066 return ncur;
1963} 2067}
1964 2068
1965noinline ecb_cold 2069ecb_noinline ecb_cold
1966static void * 2070static void *
1967array_realloc (int elem, void *base, int *cur, int cnt) 2071array_realloc (int elem, void *base, int *cur, int cnt)
1968{ 2072{
1969 *cur = array_nextsize (elem, *cur, cnt); 2073 *cur = array_nextsize (elem, *cur, cnt);
1970 return ev_realloc (base, elem * *cur); 2074 return ev_realloc (base, elem * *cur);
1971} 2075}
1972 2076
1973#define array_needsize_noinit(base,count) 2077#define array_needsize_noinit(base,offset,count)
1974 2078
1975#define array_needsize_zerofill(base,count) \ 2079#define array_needsize_zerofill(base,offset,count) \
1976 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2080 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1977 2081
1978#define array_needsize(type,base,cur,cnt,init) \ 2082#define array_needsize(type,base,cur,cnt,init) \
1979 if (expect_false ((cnt) > (cur))) \ 2083 if (ecb_expect_false ((cnt) > (cur))) \
1980 { \ 2084 { \
1981 ecb_unused int ocur_ = (cur); \ 2085 ecb_unused int ocur_ = (cur); \
1982 (base) = (type *)array_realloc \ 2086 (base) = (type *)array_realloc \
1983 (sizeof (type), (base), &(cur), (cnt)); \ 2087 (sizeof (type), (base), &(cur), (cnt)); \
1984 init ((base) + (ocur_), (cur) - ocur_); \ 2088 init ((base), ocur_, ((cur) - ocur_)); \
1985 } 2089 }
1986 2090
1987#if 0 2091#if 0
1988#define array_slim(type,stem) \ 2092#define array_slim(type,stem) \
1989 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2093 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1998 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2102 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1999 2103
2000/*****************************************************************************/ 2104/*****************************************************************************/
2001 2105
2002/* dummy callback for pending events */ 2106/* dummy callback for pending events */
2003noinline 2107ecb_noinline
2004static void 2108static void
2005pendingcb (EV_P_ ev_prepare *w, int revents) 2109pendingcb (EV_P_ ev_prepare *w, int revents)
2006{ 2110{
2007} 2111}
2008 2112
2009noinline 2113ecb_noinline
2010void 2114void
2011ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2115ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2012{ 2116{
2013 W w_ = (W)w; 2117 W w_ = (W)w;
2014 int pri = ABSPRI (w_); 2118 int pri = ABSPRI (w_);
2015 2119
2016 if (expect_false (w_->pending)) 2120 if (ecb_expect_false (w_->pending))
2017 pendings [pri][w_->pending - 1].events |= revents; 2121 pendings [pri][w_->pending - 1].events |= revents;
2018 else 2122 else
2019 { 2123 {
2020 w_->pending = ++pendingcnt [pri]; 2124 w_->pending = ++pendingcnt [pri];
2021 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); 2125 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
… …
2072inline_speed void 2176inline_speed void
2073fd_event (EV_P_ int fd, int revents) 2177fd_event (EV_P_ int fd, int revents)
2074{ 2178{
2075 ANFD *anfd = anfds + fd; 2179 ANFD *anfd = anfds + fd;
2076 2180
2077 if (expect_true (!anfd->reify)) 2181 if (ecb_expect_true (!anfd->reify))
2078 fd_event_nocheck (EV_A_ fd, revents); 2182 fd_event_nocheck (EV_A_ fd, revents);
2079} 2183}
2080 2184
2081void 2185void
2082ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2186ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2124 ev_io *w; 2228 ev_io *w;
2125 2229
2126 unsigned char o_events = anfd->events; 2230 unsigned char o_events = anfd->events;
2127 unsigned char o_reify = anfd->reify; 2231 unsigned char o_reify = anfd->reify;
2128 2232
2129 anfd->reify = 0; 2233 anfd->reify = 0;
2130 2234
2131 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2235 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2132 { 2236 {
2133 anfd->events = 0; 2237 anfd->events = 0;
2134 2238
2135 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2239 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2136 anfd->events |= (unsigned char)w->events; 2240 anfd->events |= (unsigned char)w->events;
… …
2152fd_change (EV_P_ int fd, int flags) 2256fd_change (EV_P_ int fd, int flags)
2153{ 2257{
2154 unsigned char reify = anfds [fd].reify; 2258 unsigned char reify = anfds [fd].reify;
2155 anfds [fd].reify |= flags; 2259 anfds [fd].reify |= flags;
2156 2260
2157 if (expect_true (!reify)) 2261 if (ecb_expect_true (!reify))
2158 { 2262 {
2159 ++fdchangecnt; 2263 ++fdchangecnt;
2160 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); 2264 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2161 fdchanges [fdchangecnt - 1] = fd; 2265 fdchanges [fdchangecnt - 1] = fd;
2162 } 2266 }
… …
2185 return fcntl (fd, F_GETFD) != -1; 2289 return fcntl (fd, F_GETFD) != -1;
2186#endif 2290#endif
2187} 2291}
2188 2292
2189/* called on EBADF to verify fds */ 2293/* called on EBADF to verify fds */
2190noinline ecb_cold 2294ecb_noinline ecb_cold
2191static void 2295static void
2192fd_ebadf (EV_P) 2296fd_ebadf (EV_P)
2193{ 2297{
2194 int fd; 2298 int fd;
2195 2299
… …
2198 if (!fd_valid (fd) && errno == EBADF) 2302 if (!fd_valid (fd) && errno == EBADF)
2199 fd_kill (EV_A_ fd); 2303 fd_kill (EV_A_ fd);
2200} 2304}
2201 2305
2202/* called on ENOMEM in select/poll to kill some fds and retry */ 2306/* called on ENOMEM in select/poll to kill some fds and retry */
2203noinline ecb_cold 2307ecb_noinline ecb_cold
2204static void 2308static void
2205fd_enomem (EV_P) 2309fd_enomem (EV_P)
2206{ 2310{
2207 int fd; 2311 int fd;
2208 2312
… …
2213 break; 2317 break;
2214 } 2318 }
2215} 2319}
2216 2320
2217/* usually called after fork if backend needs to re-arm all fds from scratch */ 2321/* usually called after fork if backend needs to re-arm all fds from scratch */
2218noinline 2322ecb_noinline
2219static void 2323static void
2220fd_rearm_all (EV_P) 2324fd_rearm_all (EV_P)
2221{ 2325{
2222 int fd; 2326 int fd;
2223 2327
… …
2277 ev_tstamp minat; 2381 ev_tstamp minat;
2278 ANHE *minpos; 2382 ANHE *minpos;
2279 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2383 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2280 2384
2281 /* find minimum child */ 2385 /* find minimum child */
2282 if (expect_true (pos + DHEAP - 1 < E)) 2386 if (ecb_expect_true (pos + DHEAP - 1 < E))
2283 { 2387 {
2284 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2388 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2285 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2389 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2286 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2390 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2287 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2391 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
2405 2509
2406/*****************************************************************************/ 2510/*****************************************************************************/
2407 2511
2408#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2512#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2409 2513
2410noinline ecb_cold 2514ecb_noinline ecb_cold
2411static void 2515static void
2412evpipe_init (EV_P) 2516evpipe_init (EV_P)
2413{ 2517{
2414 if (!ev_is_active (&pipe_w)) 2518 if (!ev_is_active (&pipe_w))
2415 { 2519 {
… …
2456inline_speed void 2560inline_speed void
2457evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2561evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2458{ 2562{
2459 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2563 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2460 2564
2461 if (expect_true (*flag)) 2565 if (ecb_expect_true (*flag))
2462 return; 2566 return;
2463 2567
2464 *flag = 1; 2568 *flag = 1;
2465 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2569 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2466 2570
… …
2543 sig_pending = 0; 2647 sig_pending = 0;
2544 2648
2545 ECB_MEMORY_FENCE; 2649 ECB_MEMORY_FENCE;
2546 2650
2547 for (i = EV_NSIG - 1; i--; ) 2651 for (i = EV_NSIG - 1; i--; )
2548 if (expect_false (signals [i].pending)) 2652 if (ecb_expect_false (signals [i].pending))
2549 ev_feed_signal_event (EV_A_ i + 1); 2653 ev_feed_signal_event (EV_A_ i + 1);
2550 } 2654 }
2551#endif 2655#endif
2552 2656
2553#if EV_ASYNC_ENABLE 2657#if EV_ASYNC_ENABLE
… …
2594#endif 2698#endif
2595 2699
2596 ev_feed_signal (signum); 2700 ev_feed_signal (signum);
2597} 2701}
2598 2702
2599noinline 2703ecb_noinline
2600void 2704void
2601ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2705ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2602{ 2706{
2603 WL w; 2707 WL w;
2604 2708
2605 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2709 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2606 return; 2710 return;
2607 2711
2608 --signum; 2712 --signum;
2609 2713
2610#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
2611 /* it is permissible to try to feed a signal to the wrong loop */ 2715 /* it is permissible to try to feed a signal to the wrong loop */
2612 /* or, likely more useful, feeding a signal nobody is waiting for */ 2716 /* or, likely more useful, feeding a signal nobody is waiting for */
2613 2717
2614 if (expect_false (signals [signum].loop != EV_A)) 2718 if (ecb_expect_false (signals [signum].loop != EV_A))
2615 return; 2719 return;
2616#endif 2720#endif
2617 2721
2618 signals [signum].pending = 0; 2722 signals [signum].pending = 0;
2619 ECB_MEMORY_FENCE_RELEASE; 2723 ECB_MEMORY_FENCE_RELEASE;
… …
2712# include "ev_port.c" 2816# include "ev_port.c"
2713#endif 2817#endif
2714#if EV_USE_KQUEUE 2818#if EV_USE_KQUEUE
2715# include "ev_kqueue.c" 2819# include "ev_kqueue.c"
2716#endif 2820#endif
2821#if EV_USE_EPOLL
2822# include "ev_epoll.c"
2823#endif
2717#if EV_USE_LINUXAIO 2824#if EV_USE_LINUXAIO
2718# include "ev_linuxaio.c" 2825# include "ev_linuxaio.c"
2719#endif 2826#endif
2720#if EV_USE_EPOLL 2827#if EV_USE_IOURING
2721# include "ev_epoll.c" 2828# include "ev_iouring.c"
2722#endif 2829#endif
2723#if EV_USE_POLL 2830#if EV_USE_POLL
2724# include "ev_poll.c" 2831# include "ev_poll.c"
2725#endif 2832#endif
2726#if EV_USE_SELECT 2833#if EV_USE_SELECT
… …
2759 2866
2760 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2867 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2761 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; 2868 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2762 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2869 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2763 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; 2870 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2871 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2764 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2872 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2765 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; 2873 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2766 2874
2767 return flags; 2875 return flags;
2768} 2876}
… …
2785#endif 2893#endif
2786#ifdef __FreeBSD__ 2894#ifdef __FreeBSD__
2787 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2895 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2788#endif 2896#endif
2789 2897
2898 /* TODO: linuxaio is very experimental */
2899#if !EV_RECOMMEND_LINUXAIO
2900 flags &= ~EVBACKEND_LINUXAIO;
2901#endif
2902 /* TODO: linuxaio is super experimental */
2903#if !EV_RECOMMEND_IOURING
2904 flags &= ~EVBACKEND_IOURING;
2905#endif
2906
2790 return flags; 2907 return flags;
2791} 2908}
2792 2909
2793ecb_cold 2910ecb_cold
2794unsigned int 2911unsigned int
… …
2859 acquire_cb = acquire; 2976 acquire_cb = acquire;
2860} 2977}
2861#endif 2978#endif
2862 2979
2863/* initialise a loop structure, must be zero-initialised */ 2980/* initialise a loop structure, must be zero-initialised */
2864noinline ecb_cold 2981ecb_noinline ecb_cold
2865static void 2982static void
2866loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 2983loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2867{ 2984{
2868 if (!backend) 2985 if (!backend)
2869 { 2986 {
… …
2937 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2938#endif 3055#endif
2939#if EV_USE_KQUEUE 3056#if EV_USE_KQUEUE
2940 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); 3057 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2941#endif 3058#endif
3059#if EV_USE_IOURING
3060 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3061#endif
2942#if EV_USE_LINUXAIO 3062#if EV_USE_LINUXAIO
2943 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); 3063 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2944#endif 3064#endif
2945#if EV_USE_EPOLL 3065#if EV_USE_EPOLL
2946 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3066 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
… …
2974 return; 3094 return;
2975#endif 3095#endif
2976 3096
2977#if EV_CLEANUP_ENABLE 3097#if EV_CLEANUP_ENABLE
2978 /* queue cleanup watchers (and execute them) */ 3098 /* queue cleanup watchers (and execute them) */
2979 if (expect_false (cleanupcnt)) 3099 if (ecb_expect_false (cleanupcnt))
2980 { 3100 {
2981 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3101 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2982 EV_INVOKE_PENDING; 3102 EV_INVOKE_PENDING;
2983 } 3103 }
2984#endif 3104#endif
… …
3019#if EV_USE_PORT 3139#if EV_USE_PORT
3020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3140 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3021#endif 3141#endif
3022#if EV_USE_KQUEUE 3142#if EV_USE_KQUEUE
3023 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); 3143 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3144#endif
3145#if EV_USE_IOURING
3146 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3024#endif 3147#endif
3025#if EV_USE_LINUXAIO 3148#if EV_USE_LINUXAIO
3026 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); 3149 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3027#endif 3150#endif
3028#if EV_USE_EPOLL 3151#if EV_USE_EPOLL
… …
3087 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3210 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3088#endif 3211#endif
3089#if EV_USE_KQUEUE 3212#if EV_USE_KQUEUE
3090 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); 3213 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3091#endif 3214#endif
3215#if EV_USE_IOURING
3216 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3217#endif
3092#if EV_USE_LINUXAIO 3218#if EV_USE_LINUXAIO
3093 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); 3219 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3094#endif 3220#endif
3095#if EV_USE_EPOLL 3221#if EV_USE_EPOLL
3096 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3222 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
… …
3138} 3264}
3139 3265
3140#endif /* multiplicity */ 3266#endif /* multiplicity */
3141 3267
3142#if EV_VERIFY 3268#if EV_VERIFY
3143noinline ecb_cold 3269ecb_noinline ecb_cold
3144static void 3270static void
3145verify_watcher (EV_P_ W w) 3271verify_watcher (EV_P_ W w)
3146{ 3272{
3147 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3273 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3148 3274
3149 if (w->pending) 3275 if (w->pending)
3150 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3276 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3151} 3277}
3152 3278
3153noinline ecb_cold 3279ecb_noinline ecb_cold
3154static void 3280static void
3155verify_heap (EV_P_ ANHE *heap, int N) 3281verify_heap (EV_P_ ANHE *heap, int N)
3156{ 3282{
3157 int i; 3283 int i;
3158 3284
… …
3164 3290
3165 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3291 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3166 } 3292 }
3167} 3293}
3168 3294
3169noinline ecb_cold 3295ecb_noinline ecb_cold
3170static void 3296static void
3171array_verify (EV_P_ W *ws, int cnt) 3297array_verify (EV_P_ W *ws, int cnt)
3172{ 3298{
3173 while (cnt--) 3299 while (cnt--)
3174 { 3300 {
… …
3323 count += pendingcnt [pri]; 3449 count += pendingcnt [pri];
3324 3450
3325 return count; 3451 return count;
3326} 3452}
3327 3453
3328noinline 3454ecb_noinline
3329void 3455void
3330ev_invoke_pending (EV_P) 3456ev_invoke_pending (EV_P)
3331{ 3457{
3332 pendingpri = NUMPRI; 3458 pendingpri = NUMPRI;
3333 3459
… …
3352/* make idle watchers pending. this handles the "call-idle */ 3478/* make idle watchers pending. this handles the "call-idle */
3353/* only when higher priorities are idle" logic */ 3479/* only when higher priorities are idle" logic */
3354inline_size void 3480inline_size void
3355idle_reify (EV_P) 3481idle_reify (EV_P)
3356{ 3482{
3357 if (expect_false (idleall)) 3483 if (ecb_expect_false (idleall))
3358 { 3484 {
3359 int pri; 3485 int pri;
3360 3486
3361 for (pri = NUMPRI; pri--; ) 3487 for (pri = NUMPRI; pri--; )
3362 { 3488 {
… …
3411 } 3537 }
3412} 3538}
3413 3539
3414#if EV_PERIODIC_ENABLE 3540#if EV_PERIODIC_ENABLE
3415 3541
3416noinline 3542ecb_noinline
3417static void 3543static void
3418periodic_recalc (EV_P_ ev_periodic *w) 3544periodic_recalc (EV_P_ ev_periodic *w)
3419{ 3545{
3420 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3546 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3421 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3547 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3424 while (at <= ev_rt_now) 3550 while (at <= ev_rt_now)
3425 { 3551 {
3426 ev_tstamp nat = at + w->interval; 3552 ev_tstamp nat = at + w->interval;
3427 3553
3428 /* when resolution fails us, we use ev_rt_now */ 3554 /* when resolution fails us, we use ev_rt_now */
3429 if (expect_false (nat == at)) 3555 if (ecb_expect_false (nat == at))
3430 { 3556 {
3431 at = ev_rt_now; 3557 at = ev_rt_now;
3432 break; 3558 break;
3433 } 3559 }
3434 3560
… …
3480 } 3606 }
3481} 3607}
3482 3608
3483/* simply recalculate all periodics */ 3609/* simply recalculate all periodics */
3484/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3610/* TODO: maybe ensure that at least one event happens when jumping forward? */
3485noinline ecb_cold 3611ecb_noinline ecb_cold
3486static void 3612static void
3487periodics_reschedule (EV_P) 3613periodics_reschedule (EV_P)
3488{ 3614{
3489 int i; 3615 int i;
3490 3616
… …
3504 reheap (periodics, periodiccnt); 3630 reheap (periodics, periodiccnt);
3505} 3631}
3506#endif 3632#endif
3507 3633
3508/* adjust all timers by a given offset */ 3634/* adjust all timers by a given offset */
3509noinline ecb_cold 3635ecb_noinline ecb_cold
3510static void 3636static void
3511timers_reschedule (EV_P_ ev_tstamp adjust) 3637timers_reschedule (EV_P_ ev_tstamp adjust)
3512{ 3638{
3513 int i; 3639 int i;
3514 3640
… …
3524/* also detect if there was a timejump, and act accordingly */ 3650/* also detect if there was a timejump, and act accordingly */
3525inline_speed void 3651inline_speed void
3526time_update (EV_P_ ev_tstamp max_block) 3652time_update (EV_P_ ev_tstamp max_block)
3527{ 3653{
3528#if EV_USE_MONOTONIC 3654#if EV_USE_MONOTONIC
3529 if (expect_true (have_monotonic)) 3655 if (ecb_expect_true (have_monotonic))
3530 { 3656 {
3531 int i; 3657 int i;
3532 ev_tstamp odiff = rtmn_diff; 3658 ev_tstamp odiff = rtmn_diff;
3533 3659
3534 mn_now = get_clock (); 3660 mn_now = get_clock ();
3535 3661
3536 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3662 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3537 /* interpolate in the meantime */ 3663 /* interpolate in the meantime */
3538 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3664 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3539 { 3665 {
3540 ev_rt_now = rtmn_diff + mn_now; 3666 ev_rt_now = rtmn_diff + mn_now;
3541 return; 3667 return;
3542 } 3668 }
3543 3669
… …
3557 ev_tstamp diff; 3683 ev_tstamp diff;
3558 rtmn_diff = ev_rt_now - mn_now; 3684 rtmn_diff = ev_rt_now - mn_now;
3559 3685
3560 diff = odiff - rtmn_diff; 3686 diff = odiff - rtmn_diff;
3561 3687
3562 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3688 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3563 return; /* all is well */ 3689 return; /* all is well */
3564 3690
3565 ev_rt_now = ev_time (); 3691 ev_rt_now = ev_time ();
3566 mn_now = get_clock (); 3692 mn_now = get_clock ();
3567 now_floor = mn_now; 3693 now_floor = mn_now;
… …
3576 else 3702 else
3577#endif 3703#endif
3578 { 3704 {
3579 ev_rt_now = ev_time (); 3705 ev_rt_now = ev_time ();
3580 3706
3581 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3707 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3582 { 3708 {
3583 /* adjust timers. this is easy, as the offset is the same for all of them */ 3709 /* adjust timers. this is easy, as the offset is the same for all of them */
3584 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3710 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3585#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3586 periodics_reschedule (EV_A); 3712 periodics_reschedule (EV_A);
… …
3609#if EV_VERIFY >= 2 3735#if EV_VERIFY >= 2
3610 ev_verify (EV_A); 3736 ev_verify (EV_A);
3611#endif 3737#endif
3612 3738
3613#ifndef _WIN32 3739#ifndef _WIN32
3614 if (expect_false (curpid)) /* penalise the forking check even more */ 3740 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3615 if (expect_false (getpid () != curpid)) 3741 if (ecb_expect_false (getpid () != curpid))
3616 { 3742 {
3617 curpid = getpid (); 3743 curpid = getpid ();
3618 postfork = 1; 3744 postfork = 1;
3619 } 3745 }
3620#endif 3746#endif
3621 3747
3622#if EV_FORK_ENABLE 3748#if EV_FORK_ENABLE
3623 /* we might have forked, so queue fork handlers */ 3749 /* we might have forked, so queue fork handlers */
3624 if (expect_false (postfork)) 3750 if (ecb_expect_false (postfork))
3625 if (forkcnt) 3751 if (forkcnt)
3626 { 3752 {
3627 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3753 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3628 EV_INVOKE_PENDING; 3754 EV_INVOKE_PENDING;
3629 } 3755 }
3630#endif 3756#endif
3631 3757
3632#if EV_PREPARE_ENABLE 3758#if EV_PREPARE_ENABLE
3633 /* queue prepare watchers (and execute them) */ 3759 /* queue prepare watchers (and execute them) */
3634 if (expect_false (preparecnt)) 3760 if (ecb_expect_false (preparecnt))
3635 { 3761 {
3636 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3762 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3637 EV_INVOKE_PENDING; 3763 EV_INVOKE_PENDING;
3638 } 3764 }
3639#endif 3765#endif
3640 3766
3641 if (expect_false (loop_done)) 3767 if (ecb_expect_false (loop_done))
3642 break; 3768 break;
3643 3769
3644 /* we might have forked, so reify kernel state if necessary */ 3770 /* we might have forked, so reify kernel state if necessary */
3645 if (expect_false (postfork)) 3771 if (ecb_expect_false (postfork))
3646 loop_fork (EV_A); 3772 loop_fork (EV_A);
3647 3773
3648 /* update fd-related kernel structures */ 3774 /* update fd-related kernel structures */
3649 fd_reify (EV_A); 3775 fd_reify (EV_A);
3650 3776
… …
3662 /* from now on, we want a pipe-wake-up */ 3788 /* from now on, we want a pipe-wake-up */
3663 pipe_write_wanted = 1; 3789 pipe_write_wanted = 1;
3664 3790
3665 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3791 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3666 3792
3667 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3793 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3668 { 3794 {
3669 waittime = MAX_BLOCKTIME; 3795 waittime = MAX_BLOCKTIME;
3670 3796
3671 if (timercnt) 3797 if (timercnt)
3672 { 3798 {
… …
3681 if (waittime > to) waittime = to; 3807 if (waittime > to) waittime = to;
3682 } 3808 }
3683#endif 3809#endif
3684 3810
3685 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3811 /* don't let timeouts decrease the waittime below timeout_blocktime */
3686 if (expect_false (waittime < timeout_blocktime)) 3812 if (ecb_expect_false (waittime < timeout_blocktime))
3687 waittime = timeout_blocktime; 3813 waittime = timeout_blocktime;
3688 3814
3689 /* at this point, we NEED to wait, so we have to ensure */ 3815 /* at this point, we NEED to wait, so we have to ensure */
3690 /* to pass a minimum nonzero value to the backend */ 3816 /* to pass a minimum nonzero value to the backend */
3691 if (expect_false (waittime < backend_mintime)) 3817 if (ecb_expect_false (waittime < backend_mintime))
3692 waittime = backend_mintime; 3818 waittime = backend_mintime;
3693 3819
3694 /* extra check because io_blocktime is commonly 0 */ 3820 /* extra check because io_blocktime is commonly 0 */
3695 if (expect_false (io_blocktime)) 3821 if (ecb_expect_false (io_blocktime))
3696 { 3822 {
3697 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3823 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3698 3824
3699 if (sleeptime > waittime - backend_mintime) 3825 if (sleeptime > waittime - backend_mintime)
3700 sleeptime = waittime - backend_mintime; 3826 sleeptime = waittime - backend_mintime;
3701 3827
3702 if (expect_true (sleeptime > 0.)) 3828 if (ecb_expect_true (sleeptime > 0.))
3703 { 3829 {
3704 ev_sleep (sleeptime); 3830 ev_sleep (sleeptime);
3705 waittime -= sleeptime; 3831 waittime -= sleeptime;
3706 } 3832 }
3707 } 3833 }
… …
3721 { 3847 {
3722 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3848 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3723 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3849 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3724 } 3850 }
3725 3851
3726
3727 /* update ev_rt_now, do magic */ 3852 /* update ev_rt_now, do magic */
3728 time_update (EV_A_ waittime + sleeptime); 3853 time_update (EV_A_ waittime + sleeptime);
3729 } 3854 }
3730 3855
3731 /* queue pending timers and reschedule them */ 3856 /* queue pending timers and reschedule them */
… …
3739 idle_reify (EV_A); 3864 idle_reify (EV_A);
3740#endif 3865#endif
3741 3866
3742#if EV_CHECK_ENABLE 3867#if EV_CHECK_ENABLE
3743 /* queue check watchers, to be executed first */ 3868 /* queue check watchers, to be executed first */
3744 if (expect_false (checkcnt)) 3869 if (ecb_expect_false (checkcnt))
3745 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3870 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3746#endif 3871#endif
3747 3872
3748 EV_INVOKE_PENDING; 3873 EV_INVOKE_PENDING;
3749 } 3874 }
3750 while (expect_true ( 3875 while (ecb_expect_true (
3751 activecnt 3876 activecnt
3752 && !loop_done 3877 && !loop_done
3753 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3878 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3754 )); 3879 ));
3755 3880
… …
3819inline_size void 3944inline_size void
3820wlist_del (WL *head, WL elem) 3945wlist_del (WL *head, WL elem)
3821{ 3946{
3822 while (*head) 3947 while (*head)
3823 { 3948 {
3824 if (expect_true (*head == elem)) 3949 if (ecb_expect_true (*head == elem))
3825 { 3950 {
3826 *head = elem->next; 3951 *head = elem->next;
3827 break; 3952 break;
3828 } 3953 }
3829 3954
… …
3846ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 3971ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3847{ 3972{
3848 W w_ = (W)w; 3973 W w_ = (W)w;
3849 int pending = w_->pending; 3974 int pending = w_->pending;
3850 3975
3851 if (expect_true (pending)) 3976 if (ecb_expect_true (pending))
3852 { 3977 {
3853 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3978 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3854 p->w = (W)&pending_w; 3979 p->w = (W)&pending_w;
3855 w_->pending = 0; 3980 w_->pending = 0;
3856 return p->events; 3981 return p->events;
… …
3883 w->active = 0; 4008 w->active = 0;
3884} 4009}
3885 4010
3886/*****************************************************************************/ 4011/*****************************************************************************/
3887 4012
3888noinline 4013ecb_noinline
3889void 4014void
3890ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4015ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3891{ 4016{
3892 int fd = w->fd; 4017 int fd = w->fd;
3893 4018
3894 if (expect_false (ev_is_active (w))) 4019 if (ecb_expect_false (ev_is_active (w)))
3895 return; 4020 return;
3896 4021
3897 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4022 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3898 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4023 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3899 4024
4025#if EV_VERIFY >= 2
4026 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4027#endif
3900 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3901 4029
3902 ev_start (EV_A_ (W)w, 1); 4030 ev_start (EV_A_ (W)w, 1);
3903 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); 4031 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3904 wlist_add (&anfds[fd].head, (WL)w); 4032 wlist_add (&anfds[fd].head, (WL)w);
… …
3910 w->events &= ~EV__IOFDSET; 4038 w->events &= ~EV__IOFDSET;
3911 4039
3912 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3913} 4041}
3914 4042
3915noinline 4043ecb_noinline
3916void 4044void
3917ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4045ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3918{ 4046{
3919 clear_pending (EV_A_ (W)w); 4047 clear_pending (EV_A_ (W)w);
3920 if (expect_false (!ev_is_active (w))) 4048 if (ecb_expect_false (!ev_is_active (w)))
3921 return; 4049 return;
3922 4050
3923 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4051 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3924 4052
4053#if EV_VERIFY >= 2
4054 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4055#endif
3925 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
3926 4057
3927 wlist_del (&anfds[w->fd].head, (WL)w); 4058 wlist_del (&anfds[w->fd].head, (WL)w);
3928 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3929 4060
3930 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4061 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3931 4062
3932 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3933} 4064}
3934 4065
3935noinline 4066ecb_noinline
3936void 4067void
3937ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4068ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3938{ 4069{
3939 if (expect_false (ev_is_active (w))) 4070 if (ecb_expect_false (ev_is_active (w)))
3940 return; 4071 return;
3941 4072
3942 ev_at (w) += mn_now; 4073 ev_at (w) += mn_now;
3943 4074
3944 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4075 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
… …
3955 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3956 4087
3957 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4088 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3958} 4089}
3959 4090
3960noinline 4091ecb_noinline
3961void 4092void
3962ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4093ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3963{ 4094{
3964 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3965 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3966 return; 4097 return;
3967 4098
3968 EV_FREQUENT_CHECK; 4099 EV_FREQUENT_CHECK;
3969 4100
3970 { 4101 {
… …
3972 4103
3973 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4104 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3974 4105
3975 --timercnt; 4106 --timercnt;
3976 4107
3977 if (expect_true (active < timercnt + HEAP0)) 4108 if (ecb_expect_true (active < timercnt + HEAP0))
3978 { 4109 {
3979 timers [active] = timers [timercnt + HEAP0]; 4110 timers [active] = timers [timercnt + HEAP0];
3980 adjustheap (timers, timercnt, active); 4111 adjustheap (timers, timercnt, active);
3981 } 4112 }
3982 } 4113 }
… …
3986 ev_stop (EV_A_ (W)w); 4117 ev_stop (EV_A_ (W)w);
3987 4118
3988 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3989} 4120}
3990 4121
3991noinline 4122ecb_noinline
3992void 4123void
3993ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4124ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3994{ 4125{
3995 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
3996 4127
… …
4021{ 4152{
4022 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4153 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
4023} 4154}
4024 4155
4025#if EV_PERIODIC_ENABLE 4156#if EV_PERIODIC_ENABLE
4026noinline 4157ecb_noinline
4027void 4158void
4028ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4159ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4029{ 4160{
4030 if (expect_false (ev_is_active (w))) 4161 if (ecb_expect_false (ev_is_active (w)))
4031 return; 4162 return;
4032 4163
4033 if (w->reschedule_cb) 4164 if (w->reschedule_cb)
4034 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4165 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4035 else if (w->interval) 4166 else if (w->interval)
… …
4052 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
4053 4184
4054 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4185 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4055} 4186}
4056 4187
4057noinline 4188ecb_noinline
4058void 4189void
4059ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4190ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4060{ 4191{
4061 clear_pending (EV_A_ (W)w); 4192 clear_pending (EV_A_ (W)w);
4062 if (expect_false (!ev_is_active (w))) 4193 if (ecb_expect_false (!ev_is_active (w)))
4063 return; 4194 return;
4064 4195
4065 EV_FREQUENT_CHECK; 4196 EV_FREQUENT_CHECK;
4066 4197
4067 { 4198 {
… …
4069 4200
4070 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4201 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4071 4202
4072 --periodiccnt; 4203 --periodiccnt;
4073 4204
4074 if (expect_true (active < periodiccnt + HEAP0)) 4205 if (ecb_expect_true (active < periodiccnt + HEAP0))
4075 { 4206 {
4076 periodics [active] = periodics [periodiccnt + HEAP0]; 4207 periodics [active] = periodics [periodiccnt + HEAP0];
4077 adjustheap (periodics, periodiccnt, active); 4208 adjustheap (periodics, periodiccnt, active);
4078 } 4209 }
4079 } 4210 }
… …
4081 ev_stop (EV_A_ (W)w); 4212 ev_stop (EV_A_ (W)w);
4082 4213
4083 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
4084} 4215}
4085 4216
4086noinline 4217ecb_noinline
4087void 4218void
4088ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4219ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4089{ 4220{
4090 /* TODO: use adjustheap and recalculation */ 4221 /* TODO: use adjustheap and recalculation */
4091 ev_periodic_stop (EV_A_ w); 4222 ev_periodic_stop (EV_A_ w);
… …
4097# define SA_RESTART 0 4228# define SA_RESTART 0
4098#endif 4229#endif
4099 4230
4100#if EV_SIGNAL_ENABLE 4231#if EV_SIGNAL_ENABLE
4101 4232
4102noinline 4233ecb_noinline
4103void 4234void
4104ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4235ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4105{ 4236{
4106 if (expect_false (ev_is_active (w))) 4237 if (ecb_expect_false (ev_is_active (w)))
4107 return; 4238 return;
4108 4239
4109 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4240 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4110 4241
4111#if EV_MULTIPLICITY 4242#if EV_MULTIPLICITY
… …
4180 } 4311 }
4181 4312
4182 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
4183} 4314}
4184 4315
4185noinline 4316ecb_noinline
4186void 4317void
4187ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4318ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4188{ 4319{
4189 clear_pending (EV_A_ (W)w); 4320 clear_pending (EV_A_ (W)w);
4190 if (expect_false (!ev_is_active (w))) 4321 if (ecb_expect_false (!ev_is_active (w)))
4191 return; 4322 return;
4192 4323
4193 EV_FREQUENT_CHECK; 4324 EV_FREQUENT_CHECK;
4194 4325
4195 wlist_del (&signals [w->signum - 1].head, (WL)w); 4326 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4228ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4359ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4229{ 4360{
4230#if EV_MULTIPLICITY 4361#if EV_MULTIPLICITY
4231 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4362 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4232#endif 4363#endif
4233 if (expect_false (ev_is_active (w))) 4364 if (ecb_expect_false (ev_is_active (w)))
4234 return; 4365 return;
4235 4366
4236 EV_FREQUENT_CHECK; 4367 EV_FREQUENT_CHECK;
4237 4368
4238 ev_start (EV_A_ (W)w, 1); 4369 ev_start (EV_A_ (W)w, 1);
… …
4243 4374
4244void 4375void
4245ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4376ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4246{ 4377{
4247 clear_pending (EV_A_ (W)w); 4378 clear_pending (EV_A_ (W)w);
4248 if (expect_false (!ev_is_active (w))) 4379 if (ecb_expect_false (!ev_is_active (w)))
4249 return; 4380 return;
4250 4381
4251 EV_FREQUENT_CHECK; 4382 EV_FREQUENT_CHECK;
4252 4383
4253 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4384 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4267 4398
4268#define DEF_STAT_INTERVAL 5.0074891 4399#define DEF_STAT_INTERVAL 5.0074891
4269#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4400#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4270#define MIN_STAT_INTERVAL 0.1074891 4401#define MIN_STAT_INTERVAL 0.1074891
4271 4402
4272noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4403ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4273 4404
4274#if EV_USE_INOTIFY 4405#if EV_USE_INOTIFY
4275 4406
4276/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4407/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4277# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4408# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4278 4409
4279noinline 4410ecb_noinline
4280static void 4411static void
4281infy_add (EV_P_ ev_stat *w) 4412infy_add (EV_P_ ev_stat *w)
4282{ 4413{
4283 w->wd = inotify_add_watch (fs_fd, w->path, 4414 w->wd = inotify_add_watch (fs_fd, w->path,
4284 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4415 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4349 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4480 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4350 ev_timer_again (EV_A_ &w->timer); 4481 ev_timer_again (EV_A_ &w->timer);
4351 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4482 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4352} 4483}
4353 4484
4354noinline 4485ecb_noinline
4355static void 4486static void
4356infy_del (EV_P_ ev_stat *w) 4487infy_del (EV_P_ ev_stat *w)
4357{ 4488{
4358 int slot; 4489 int slot;
4359 int wd = w->wd; 4490 int wd = w->wd;
… …
4367 4498
4368 /* remove this watcher, if others are watching it, they will rearm */ 4499 /* remove this watcher, if others are watching it, they will rearm */
4369 inotify_rm_watch (fs_fd, wd); 4500 inotify_rm_watch (fs_fd, wd);
4370} 4501}
4371 4502
4372noinline 4503ecb_noinline
4373static void 4504static void
4374infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4505infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4375{ 4506{
4376 if (slot < 0) 4507 if (slot < 0)
4377 /* overflow, need to check for all hash slots */ 4508 /* overflow, need to check for all hash slots */
… …
4523 w->attr.st_nlink = 0; 4654 w->attr.st_nlink = 0;
4524 else if (!w->attr.st_nlink) 4655 else if (!w->attr.st_nlink)
4525 w->attr.st_nlink = 1; 4656 w->attr.st_nlink = 1;
4526} 4657}
4527 4658
4528noinline 4659ecb_noinline
4529static void 4660static void
4530stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4661stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4531{ 4662{
4532 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4663 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4533 4664
… …
4567} 4698}
4568 4699
4569void 4700void
4570ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 4701ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4571{ 4702{
4572 if (expect_false (ev_is_active (w))) 4703 if (ecb_expect_false (ev_is_active (w)))
4573 return; 4704 return;
4574 4705
4575 ev_stat_stat (EV_A_ w); 4706 ev_stat_stat (EV_A_ w);
4576 4707
4577 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4708 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4599 4730
4600void 4731void
4601ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 4732ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4602{ 4733{
4603 clear_pending (EV_A_ (W)w); 4734 clear_pending (EV_A_ (W)w);
4604 if (expect_false (!ev_is_active (w))) 4735 if (ecb_expect_false (!ev_is_active (w)))
4605 return; 4736 return;
4606 4737
4607 EV_FREQUENT_CHECK; 4738 EV_FREQUENT_CHECK;
4608 4739
4609#if EV_USE_INOTIFY 4740#if EV_USE_INOTIFY
… …
4624 4755
4625#if EV_IDLE_ENABLE 4756#if EV_IDLE_ENABLE
4626void 4757void
4627ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 4758ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4628{ 4759{
4629 if (expect_false (ev_is_active (w))) 4760 if (ecb_expect_false (ev_is_active (w)))
4630 return; 4761 return;
4631 4762
4632 pri_adjust (EV_A_ (W)w); 4763 pri_adjust (EV_A_ (W)w);
4633 4764
4634 EV_FREQUENT_CHECK; 4765 EV_FREQUENT_CHECK;
… …
4648 4779
4649void 4780void
4650ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 4781ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4651{ 4782{
4652 clear_pending (EV_A_ (W)w); 4783 clear_pending (EV_A_ (W)w);
4653 if (expect_false (!ev_is_active (w))) 4784 if (ecb_expect_false (!ev_is_active (w)))
4654 return; 4785 return;
4655 4786
4656 EV_FREQUENT_CHECK; 4787 EV_FREQUENT_CHECK;
4657 4788
4658 { 4789 {
… …
4671 4802
4672#if EV_PREPARE_ENABLE 4803#if EV_PREPARE_ENABLE
4673void 4804void
4674ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 4805ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4675{ 4806{
4676 if (expect_false (ev_is_active (w))) 4807 if (ecb_expect_false (ev_is_active (w)))
4677 return; 4808 return;
4678 4809
4679 EV_FREQUENT_CHECK; 4810 EV_FREQUENT_CHECK;
4680 4811
4681 ev_start (EV_A_ (W)w, ++preparecnt); 4812 ev_start (EV_A_ (W)w, ++preparecnt);
… …
4687 4818
4688void 4819void
4689ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 4820ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4690{ 4821{
4691 clear_pending (EV_A_ (W)w); 4822 clear_pending (EV_A_ (W)w);
4692 if (expect_false (!ev_is_active (w))) 4823 if (ecb_expect_false (!ev_is_active (w)))
4693 return; 4824 return;
4694 4825
4695 EV_FREQUENT_CHECK; 4826 EV_FREQUENT_CHECK;
4696 4827
4697 { 4828 {
… …
4709 4840
4710#if EV_CHECK_ENABLE 4841#if EV_CHECK_ENABLE
4711void 4842void
4712ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 4843ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4713{ 4844{
4714 if (expect_false (ev_is_active (w))) 4845 if (ecb_expect_false (ev_is_active (w)))
4715 return; 4846 return;
4716 4847
4717 EV_FREQUENT_CHECK; 4848 EV_FREQUENT_CHECK;
4718 4849
4719 ev_start (EV_A_ (W)w, ++checkcnt); 4850 ev_start (EV_A_ (W)w, ++checkcnt);
… …
4725 4856
4726void 4857void
4727ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 4858ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4728{ 4859{
4729 clear_pending (EV_A_ (W)w); 4860 clear_pending (EV_A_ (W)w);
4730 if (expect_false (!ev_is_active (w))) 4861 if (ecb_expect_false (!ev_is_active (w)))
4731 return; 4862 return;
4732 4863
4733 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4734 4865
4735 { 4866 {
… …
4744 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4745} 4876}
4746#endif 4877#endif
4747 4878
4748#if EV_EMBED_ENABLE 4879#if EV_EMBED_ENABLE
4749noinline 4880ecb_noinline
4750void 4881void
4751ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 4882ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4752{ 4883{
4753 ev_run (w->other, EVRUN_NOWAIT); 4884 ev_run (w->other, EVRUN_NOWAIT);
4754} 4885}
… …
4806#endif 4937#endif
4807 4938
4808void 4939void
4809ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 4940ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4810{ 4941{
4811 if (expect_false (ev_is_active (w))) 4942 if (ecb_expect_false (ev_is_active (w)))
4812 return; 4943 return;
4813 4944
4814 { 4945 {
4815 EV_P = w->other; 4946 EV_P = w->other;
4816 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4947 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4838 4969
4839void 4970void
4840ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 4971ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4841{ 4972{
4842 clear_pending (EV_A_ (W)w); 4973 clear_pending (EV_A_ (W)w);
4843 if (expect_false (!ev_is_active (w))) 4974 if (ecb_expect_false (!ev_is_active (w)))
4844 return; 4975 return;
4845 4976
4846 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4847 4978
4848 ev_io_stop (EV_A_ &w->io); 4979 ev_io_stop (EV_A_ &w->io);
… …
4857 4988
4858#if EV_FORK_ENABLE 4989#if EV_FORK_ENABLE
4859void 4990void
4860ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 4991ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4861{ 4992{
4862 if (expect_false (ev_is_active (w))) 4993 if (ecb_expect_false (ev_is_active (w)))
4863 return; 4994 return;
4864 4995
4865 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4866 4997
4867 ev_start (EV_A_ (W)w, ++forkcnt); 4998 ev_start (EV_A_ (W)w, ++forkcnt);
… …
4873 5004
4874void 5005void
4875ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5006ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4876{ 5007{
4877 clear_pending (EV_A_ (W)w); 5008 clear_pending (EV_A_ (W)w);
4878 if (expect_false (!ev_is_active (w))) 5009 if (ecb_expect_false (!ev_is_active (w)))
4879 return; 5010 return;
4880 5011
4881 EV_FREQUENT_CHECK; 5012 EV_FREQUENT_CHECK;
4882 5013
4883 { 5014 {
… …
4895 5026
4896#if EV_CLEANUP_ENABLE 5027#if EV_CLEANUP_ENABLE
4897void 5028void
4898ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5029ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4899{ 5030{
4900 if (expect_false (ev_is_active (w))) 5031 if (ecb_expect_false (ev_is_active (w)))
4901 return; 5032 return;
4902 5033
4903 EV_FREQUENT_CHECK; 5034 EV_FREQUENT_CHECK;
4904 5035
4905 ev_start (EV_A_ (W)w, ++cleanupcnt); 5036 ev_start (EV_A_ (W)w, ++cleanupcnt);
… …
4913 5044
4914void 5045void
4915ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5046ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4916{ 5047{
4917 clear_pending (EV_A_ (W)w); 5048 clear_pending (EV_A_ (W)w);
4918 if (expect_false (!ev_is_active (w))) 5049 if (ecb_expect_false (!ev_is_active (w)))
4919 return; 5050 return;
4920 5051
4921 EV_FREQUENT_CHECK; 5052 EV_FREQUENT_CHECK;
4922 ev_ref (EV_A); 5053 ev_ref (EV_A);
4923 5054
… …
4936 5067
4937#if EV_ASYNC_ENABLE 5068#if EV_ASYNC_ENABLE
4938void 5069void
4939ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5070ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4940{ 5071{
4941 if (expect_false (ev_is_active (w))) 5072 if (ecb_expect_false (ev_is_active (w)))
4942 return; 5073 return;
4943 5074
4944 w->sent = 0; 5075 w->sent = 0;
4945 5076
4946 evpipe_init (EV_A); 5077 evpipe_init (EV_A);
… …
4956 5087
4957void 5088void
4958ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5089ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4959{ 5090{
4960 clear_pending (EV_A_ (W)w); 5091 clear_pending (EV_A_ (W)w);
4961 if (expect_false (!ev_is_active (w))) 5092 if (ecb_expect_false (!ev_is_active (w)))
4962 return; 5093 return;
4963 5094
4964 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4965 5096
4966 { 5097 {

Diff Legend

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