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Comparing libev/ev.c (file contents):
Revision 1.497 by root, Tue Jun 25 04:52:30 2019 UTC vs.
Revision 1.507 by root, Thu Jul 11 08:22:54 2019 UTC

… …
332# else 332# else
333# define EV_USE_LINUXAIO 0 333# define EV_USE_LINUXAIO 0
334# endif 334# endif
335#endif 335#endif
336 336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
337#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
339# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
340# else 348# else
341# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
406# include <sys/syscall.h> 414# include <sys/syscall.h>
407# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
408# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
409# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
410# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
411# else 420# else
412# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
413# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
414# endif 423# endif
415#endif 424#endif
… …
438# endif 447# endif
439#endif 448#endif
440 449
441#if EV_USE_LINUXAIO 450#if EV_USE_LINUXAIO
442# include <sys/syscall.h> 451# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */ 452# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
444# undef EV_USE_LINUXAIO 455# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0 456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
446# endif 472# endif
447#endif 473#endif
448 474
449#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
450# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
492 uint32_t ssi_signo; 518 uint32_t ssi_signo;
493 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
494}; 520};
495#endif 521#endif
496 522
497/**/ 523/*****************************************************************************/
498 524
499#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
500# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
501#else 527#else
502# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
507 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
508 */ 534 */
509#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
510/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
511 537
512#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
513#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
514 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#define EV_TS_TO_MS(a) a * 1e3 + 0.9999
550#define EV_TS_FROM_USEC(us) us * 1e-6
515#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 551#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
516#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 552#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
553#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
554#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
517 555
518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 556/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
519/* ECB.H BEGIN */ 557/* ECB.H BEGIN */
520/* 558/*
521 * libecb - http://software.schmorp.de/pkg/libecb 559 * libecb - http://software.schmorp.de/pkg/libecb
… …
1536/* ECB.H END */ 1574/* ECB.H END */
1537 1575
1538#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1576#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1539/* if your architecture doesn't need memory fences, e.g. because it is 1577/* if your architecture doesn't need memory fences, e.g. because it is
1540 * single-cpu/core, or if you use libev in a project that doesn't use libev 1578 * single-cpu/core, or if you use libev in a project that doesn't use libev
1541 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1579 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1542 * libev, in which cases the memory fences become nops. 1580 * libev, in which cases the memory fences become nops.
1543 * alternatively, you can remove this #error and link against libpthread, 1581 * alternatively, you can remove this #error and link against libpthread,
1544 * which will then provide the memory fences. 1582 * which will then provide the memory fences.
1545 */ 1583 */
1546# error "memory fences not defined for your architecture, please report" 1584# error "memory fences not defined for your architecture, please report"
… …
1550# define ECB_MEMORY_FENCE do { } while (0) 1588# define ECB_MEMORY_FENCE do { } while (0)
1551# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1589# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1552# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1590# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1553#endif 1591#endif
1554 1592
1555#define expect_false(cond) ecb_expect_false (cond)
1556#define expect_true(cond) ecb_expect_true (cond)
1557#define noinline ecb_noinline
1558
1559#define inline_size ecb_inline 1593#define inline_size ecb_inline
1560 1594
1561#if EV_FEATURE_CODE 1595#if EV_FEATURE_CODE
1562# define inline_speed ecb_inline 1596# define inline_speed ecb_inline
1563#else 1597#else
1564# define inline_speed noinline static 1598# define inline_speed ecb_noinline static
1565#endif 1599#endif
1600
1601/*****************************************************************************/
1602/* raw syscall wrappers */
1603
1604#if EV_NEED_SYSCALL
1605
1606#include <sys/syscall.h>
1607
1608/*
1609 * define some syscall wrappers for common architectures
1610 * this is mostly for nice looks during debugging, not performance.
1611 * our syscalls return < 0, not == -1, on error. which is good
1612 * enough for linux aio.
1613 * TODO: arm is also common nowadays, maybe even mips and x86
1614 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1615 */
1616#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1617 /* the costly errno access probably kills this for size optimisation */
1618
1619 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1620 ({ \
1621 long res; \
1622 register unsigned long r6 __asm__ ("r9" ); \
1623 register unsigned long r5 __asm__ ("r8" ); \
1624 register unsigned long r4 __asm__ ("r10"); \
1625 register unsigned long r3 __asm__ ("rdx"); \
1626 register unsigned long r2 __asm__ ("rsi"); \
1627 register unsigned long r1 __asm__ ("rdi"); \
1628 if (narg >= 6) r6 = (unsigned long)(arg6); \
1629 if (narg >= 5) r5 = (unsigned long)(arg5); \
1630 if (narg >= 4) r4 = (unsigned long)(arg4); \
1631 if (narg >= 3) r3 = (unsigned long)(arg3); \
1632 if (narg >= 2) r2 = (unsigned long)(arg2); \
1633 if (narg >= 1) r1 = (unsigned long)(arg1); \
1634 __asm__ __volatile__ ( \
1635 "syscall\n\t" \
1636 : "=a" (res) \
1637 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1638 : "cc", "r11", "cx", "memory"); \
1639 errno = -res; \
1640 res; \
1641 })
1642
1643#endif
1644
1645#ifdef ev_syscall
1646 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1647 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1648 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1649 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1650 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1651 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1652 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1653#else
1654 #define ev_syscall0(nr) syscall (nr)
1655 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1656 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1657 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1658 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1659 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1660 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1661#endif
1662
1663#endif
1664
1665/*****************************************************************************/
1566 1666
1567#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1667#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1568 1668
1569#if EV_MINPRI == EV_MAXPRI 1669#if EV_MINPRI == EV_MAXPRI
1570# define ABSPRI(w) (((W)w), 0) 1670# define ABSPRI(w) (((W)w), 0)
… …
1619#else 1719#else
1620 1720
1621#include <float.h> 1721#include <float.h>
1622 1722
1623/* a floor() replacement function, should be independent of ev_tstamp type */ 1723/* a floor() replacement function, should be independent of ev_tstamp type */
1624noinline 1724ecb_noinline
1625static ev_tstamp 1725static ev_tstamp
1626ev_floor (ev_tstamp v) 1726ev_floor (ev_tstamp v)
1627{ 1727{
1628 /* the choice of shift factor is not terribly important */ 1728 /* the choice of shift factor is not terribly important */
1629#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1729#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1630 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1631#else 1731#else
1632 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1732 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1633#endif 1733#endif
1634 1734
1735 /* special treatment for negative arguments */
1736 if (ecb_expect_false (v < 0.))
1737 {
1738 ev_tstamp f = -ev_floor (-v);
1739
1740 return f - (f == v ? 0 : 1);
1741 }
1742
1635 /* argument too large for an unsigned long? */ 1743 /* argument too large for an unsigned long? then reduce it */
1636 if (expect_false (v >= shift)) 1744 if (ecb_expect_false (v >= shift))
1637 { 1745 {
1638 ev_tstamp f; 1746 ev_tstamp f;
1639 1747
1640 if (v == v - 1.) 1748 if (v == v - 1.)
1641 return v; /* very large number */ 1749 return v; /* very large numbers are assumed to be integer */
1642 1750
1643 f = shift * ev_floor (v * (1. / shift)); 1751 f = shift * ev_floor (v * (1. / shift));
1644 return f + ev_floor (v - f); 1752 return f + ev_floor (v - f);
1645 } 1753 }
1646 1754
1647 /* special treatment for negative args? */
1648 if (expect_false (v < 0.))
1649 {
1650 ev_tstamp f = -ev_floor (-v);
1651
1652 return f - (f == v ? 0 : 1);
1653 }
1654
1655 /* fits into an unsigned long */ 1755 /* fits into an unsigned long */
1656 return (unsigned long)v; 1756 return (unsigned long)v;
1657} 1757}
1658 1758
1659#endif 1759#endif
… …
1662 1762
1663#ifdef __linux 1763#ifdef __linux
1664# include <sys/utsname.h> 1764# include <sys/utsname.h>
1665#endif 1765#endif
1666 1766
1667noinline ecb_cold 1767ecb_noinline ecb_cold
1668static unsigned int 1768static unsigned int
1669ev_linux_version (void) 1769ev_linux_version (void)
1670{ 1770{
1671#ifdef __linux 1771#ifdef __linux
1672 unsigned int v = 0; 1772 unsigned int v = 0;
… …
1702} 1802}
1703 1803
1704/*****************************************************************************/ 1804/*****************************************************************************/
1705 1805
1706#if EV_AVOID_STDIO 1806#if EV_AVOID_STDIO
1707noinline ecb_cold 1807ecb_noinline ecb_cold
1708static void 1808static void
1709ev_printerr (const char *msg) 1809ev_printerr (const char *msg)
1710{ 1810{
1711 write (STDERR_FILENO, msg, strlen (msg)); 1811 write (STDERR_FILENO, msg, strlen (msg));
1712} 1812}
… …
1719ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 1819ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1720{ 1820{
1721 syserr_cb = cb; 1821 syserr_cb = cb;
1722} 1822}
1723 1823
1724noinline ecb_cold 1824ecb_noinline ecb_cold
1725static void 1825static void
1726ev_syserr (const char *msg) 1826ev_syserr (const char *msg)
1727{ 1827{
1728 if (!msg) 1828 if (!msg)
1729 msg = "(libev) system error"; 1829 msg = "(libev) system error";
… …
1801{ 1901{
1802 WL head; 1902 WL head;
1803 unsigned char events; /* the events watched for */ 1903 unsigned char events; /* the events watched for */
1804 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1904 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1805 unsigned char emask; /* some backends store the actual kernel mask in here */ 1905 unsigned char emask; /* some backends store the actual kernel mask in here */
1806 unsigned char unused; 1906 unsigned char eflags; /* flags field for use by backends */
1807#if EV_USE_EPOLL 1907#if EV_USE_EPOLL
1808 unsigned int egen; /* generation counter to counter epoll bugs */ 1908 unsigned int egen; /* generation counter to counter epoll bugs */
1809#endif 1909#endif
1810#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1910#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1811 SOCKET handle; 1911 SOCKET handle;
… …
1875 static int ev_default_loop_ptr; 1975 static int ev_default_loop_ptr;
1876 1976
1877#endif 1977#endif
1878 1978
1879#if EV_FEATURE_API 1979#if EV_FEATURE_API
1880# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1980# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1881# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1981# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1882# define EV_INVOKE_PENDING invoke_cb (EV_A) 1982# define EV_INVOKE_PENDING invoke_cb (EV_A)
1883#else 1983#else
1884# define EV_RELEASE_CB (void)0 1984# define EV_RELEASE_CB (void)0
1885# define EV_ACQUIRE_CB (void)0 1985# define EV_ACQUIRE_CB (void)0
1886# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1986# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1893#ifndef EV_HAVE_EV_TIME 1993#ifndef EV_HAVE_EV_TIME
1894ev_tstamp 1994ev_tstamp
1895ev_time (void) EV_NOEXCEPT 1995ev_time (void) EV_NOEXCEPT
1896{ 1996{
1897#if EV_USE_REALTIME 1997#if EV_USE_REALTIME
1898 if (expect_true (have_realtime)) 1998 if (ecb_expect_true (have_realtime))
1899 { 1999 {
1900 struct timespec ts; 2000 struct timespec ts;
1901 clock_gettime (CLOCK_REALTIME, &ts); 2001 clock_gettime (CLOCK_REALTIME, &ts);
1902 return ts.tv_sec + ts.tv_nsec * 1e-9; 2002 return EV_TS_GET (ts);
1903 } 2003 }
1904#endif 2004#endif
1905 2005
1906 struct timeval tv; 2006 struct timeval tv;
1907 gettimeofday (&tv, 0); 2007 gettimeofday (&tv, 0);
1908 return tv.tv_sec + tv.tv_usec * 1e-6; 2008 return EV_TV_GET (tv);
1909} 2009}
1910#endif 2010#endif
1911 2011
1912inline_size ev_tstamp 2012inline_size ev_tstamp
1913get_clock (void) 2013get_clock (void)
1914{ 2014{
1915#if EV_USE_MONOTONIC 2015#if EV_USE_MONOTONIC
1916 if (expect_true (have_monotonic)) 2016 if (ecb_expect_true (have_monotonic))
1917 { 2017 {
1918 struct timespec ts; 2018 struct timespec ts;
1919 clock_gettime (CLOCK_MONOTONIC, &ts); 2019 clock_gettime (CLOCK_MONOTONIC, &ts);
1920 return ts.tv_sec + ts.tv_nsec * 1e-9; 2020 return EV_TS_GET (ts);
1921 } 2021 }
1922#endif 2022#endif
1923 2023
1924 return ev_time (); 2024 return ev_time ();
1925} 2025}
… …
1943 EV_TS_SET (ts, delay); 2043 EV_TS_SET (ts, delay);
1944 nanosleep (&ts, 0); 2044 nanosleep (&ts, 0);
1945#elif defined _WIN32 2045#elif defined _WIN32
1946 /* maybe this should round up, as ms is very low resolution */ 2046 /* maybe this should round up, as ms is very low resolution */
1947 /* compared to select (µs) or nanosleep (ns) */ 2047 /* compared to select (µs) or nanosleep (ns) */
1948 Sleep ((unsigned long)(delay * 1e3)); 2048 Sleep ((unsigned long)(EV_TS_TO_MS (delay)));
1949#else 2049#else
1950 struct timeval tv; 2050 struct timeval tv;
1951 2051
1952 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2052 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1953 /* something not guaranteed by newer posix versions, but guaranteed */ 2053 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1983 } 2083 }
1984 2084
1985 return ncur; 2085 return ncur;
1986} 2086}
1987 2087
1988noinline ecb_cold 2088ecb_noinline ecb_cold
1989static void * 2089static void *
1990array_realloc (int elem, void *base, int *cur, int cnt) 2090array_realloc (int elem, void *base, int *cur, int cnt)
1991{ 2091{
1992 *cur = array_nextsize (elem, *cur, cnt); 2092 *cur = array_nextsize (elem, *cur, cnt);
1993 return ev_realloc (base, elem * *cur); 2093 return ev_realloc (base, elem * *cur);
… …
1997 2097
1998#define array_needsize_zerofill(base,offset,count) \ 2098#define array_needsize_zerofill(base,offset,count) \
1999 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) 2099 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
2000 2100
2001#define array_needsize(type,base,cur,cnt,init) \ 2101#define array_needsize(type,base,cur,cnt,init) \
2002 if (expect_false ((cnt) > (cur))) \ 2102 if (ecb_expect_false ((cnt) > (cur))) \
2003 { \ 2103 { \
2004 ecb_unused int ocur_ = (cur); \ 2104 ecb_unused int ocur_ = (cur); \
2005 (base) = (type *)array_realloc \ 2105 (base) = (type *)array_realloc \
2006 (sizeof (type), (base), &(cur), (cnt)); \ 2106 (sizeof (type), (base), &(cur), (cnt)); \
2007 init ((base), ocur_, ((cur) - ocur_)); \ 2107 init ((base), ocur_, ((cur) - ocur_)); \
… …
2021 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2121 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
2022 2122
2023/*****************************************************************************/ 2123/*****************************************************************************/
2024 2124
2025/* dummy callback for pending events */ 2125/* dummy callback for pending events */
2026noinline 2126ecb_noinline
2027static void 2127static void
2028pendingcb (EV_P_ ev_prepare *w, int revents) 2128pendingcb (EV_P_ ev_prepare *w, int revents)
2029{ 2129{
2030} 2130}
2031 2131
2032noinline 2132ecb_noinline
2033void 2133void
2034ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2134ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2035{ 2135{
2036 W w_ = (W)w; 2136 W w_ = (W)w;
2037 int pri = ABSPRI (w_); 2137 int pri = ABSPRI (w_);
2038 2138
2039 if (expect_false (w_->pending)) 2139 if (ecb_expect_false (w_->pending))
2040 pendings [pri][w_->pending - 1].events |= revents; 2140 pendings [pri][w_->pending - 1].events |= revents;
2041 else 2141 else
2042 { 2142 {
2043 w_->pending = ++pendingcnt [pri]; 2143 w_->pending = ++pendingcnt [pri];
2044 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); 2144 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
… …
2095inline_speed void 2195inline_speed void
2096fd_event (EV_P_ int fd, int revents) 2196fd_event (EV_P_ int fd, int revents)
2097{ 2197{
2098 ANFD *anfd = anfds + fd; 2198 ANFD *anfd = anfds + fd;
2099 2199
2100 if (expect_true (!anfd->reify)) 2200 if (ecb_expect_true (!anfd->reify))
2101 fd_event_nocheck (EV_A_ fd, revents); 2201 fd_event_nocheck (EV_A_ fd, revents);
2102} 2202}
2103 2203
2104void 2204void
2105ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2205ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2149 unsigned char o_events = anfd->events; 2249 unsigned char o_events = anfd->events;
2150 unsigned char o_reify = anfd->reify; 2250 unsigned char o_reify = anfd->reify;
2151 2251
2152 anfd->reify = 0; 2252 anfd->reify = 0;
2153 2253
2154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2254 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2155 { 2255 {
2156 anfd->events = 0; 2256 anfd->events = 0;
2157 2257
2158 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2258 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2159 anfd->events |= (unsigned char)w->events; 2259 anfd->events |= (unsigned char)w->events;
… …
2175fd_change (EV_P_ int fd, int flags) 2275fd_change (EV_P_ int fd, int flags)
2176{ 2276{
2177 unsigned char reify = anfds [fd].reify; 2277 unsigned char reify = anfds [fd].reify;
2178 anfds [fd].reify |= flags; 2278 anfds [fd].reify |= flags;
2179 2279
2180 if (expect_true (!reify)) 2280 if (ecb_expect_true (!reify))
2181 { 2281 {
2182 ++fdchangecnt; 2282 ++fdchangecnt;
2183 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); 2283 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2184 fdchanges [fdchangecnt - 1] = fd; 2284 fdchanges [fdchangecnt - 1] = fd;
2185 } 2285 }
… …
2208 return fcntl (fd, F_GETFD) != -1; 2308 return fcntl (fd, F_GETFD) != -1;
2209#endif 2309#endif
2210} 2310}
2211 2311
2212/* called on EBADF to verify fds */ 2312/* called on EBADF to verify fds */
2213noinline ecb_cold 2313ecb_noinline ecb_cold
2214static void 2314static void
2215fd_ebadf (EV_P) 2315fd_ebadf (EV_P)
2216{ 2316{
2217 int fd; 2317 int fd;
2218 2318
… …
2221 if (!fd_valid (fd) && errno == EBADF) 2321 if (!fd_valid (fd) && errno == EBADF)
2222 fd_kill (EV_A_ fd); 2322 fd_kill (EV_A_ fd);
2223} 2323}
2224 2324
2225/* called on ENOMEM in select/poll to kill some fds and retry */ 2325/* called on ENOMEM in select/poll to kill some fds and retry */
2226noinline ecb_cold 2326ecb_noinline ecb_cold
2227static void 2327static void
2228fd_enomem (EV_P) 2328fd_enomem (EV_P)
2229{ 2329{
2230 int fd; 2330 int fd;
2231 2331
… …
2236 break; 2336 break;
2237 } 2337 }
2238} 2338}
2239 2339
2240/* usually called after fork if backend needs to re-arm all fds from scratch */ 2340/* usually called after fork if backend needs to re-arm all fds from scratch */
2241noinline 2341ecb_noinline
2242static void 2342static void
2243fd_rearm_all (EV_P) 2343fd_rearm_all (EV_P)
2244{ 2344{
2245 int fd; 2345 int fd;
2246 2346
… …
2300 ev_tstamp minat; 2400 ev_tstamp minat;
2301 ANHE *minpos; 2401 ANHE *minpos;
2302 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2402 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2303 2403
2304 /* find minimum child */ 2404 /* find minimum child */
2305 if (expect_true (pos + DHEAP - 1 < E)) 2405 if (ecb_expect_true (pos + DHEAP - 1 < E))
2306 { 2406 {
2307 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2407 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2308 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2408 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2309 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2409 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2310 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2410 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2311 } 2411 }
2312 else if (pos < E) 2412 else if (pos < E)
2313 { 2413 {
2314 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2414 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2315 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2415 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2316 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2416 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2317 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2417 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2318 } 2418 }
2319 else 2419 else
2320 break; 2420 break;
2321 2421
2322 if (ANHE_at (he) <= minat) 2422 if (ANHE_at (he) <= minat)
… …
2330 2430
2331 heap [k] = he; 2431 heap [k] = he;
2332 ev_active (ANHE_w (he)) = k; 2432 ev_active (ANHE_w (he)) = k;
2333} 2433}
2334 2434
2335#else /* 4HEAP */ 2435#else /* not 4HEAP */
2336 2436
2337#define HEAP0 1 2437#define HEAP0 1
2338#define HPARENT(k) ((k) >> 1) 2438#define HPARENT(k) ((k) >> 1)
2339#define UPHEAP_DONE(p,k) (!(p)) 2439#define UPHEAP_DONE(p,k) (!(p))
2340 2440
… …
2428 2528
2429/*****************************************************************************/ 2529/*****************************************************************************/
2430 2530
2431#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2531#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2432 2532
2433noinline ecb_cold 2533ecb_noinline ecb_cold
2434static void 2534static void
2435evpipe_init (EV_P) 2535evpipe_init (EV_P)
2436{ 2536{
2437 if (!ev_is_active (&pipe_w)) 2537 if (!ev_is_active (&pipe_w))
2438 { 2538 {
… …
2479inline_speed void 2579inline_speed void
2480evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2580evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2481{ 2581{
2482 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2582 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2483 2583
2484 if (expect_true (*flag)) 2584 if (ecb_expect_true (*flag))
2485 return; 2585 return;
2486 2586
2487 *flag = 1; 2587 *flag = 1;
2488 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2588 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2489 2589
… …
2566 sig_pending = 0; 2666 sig_pending = 0;
2567 2667
2568 ECB_MEMORY_FENCE; 2668 ECB_MEMORY_FENCE;
2569 2669
2570 for (i = EV_NSIG - 1; i--; ) 2670 for (i = EV_NSIG - 1; i--; )
2571 if (expect_false (signals [i].pending)) 2671 if (ecb_expect_false (signals [i].pending))
2572 ev_feed_signal_event (EV_A_ i + 1); 2672 ev_feed_signal_event (EV_A_ i + 1);
2573 } 2673 }
2574#endif 2674#endif
2575 2675
2576#if EV_ASYNC_ENABLE 2676#if EV_ASYNC_ENABLE
… …
2617#endif 2717#endif
2618 2718
2619 ev_feed_signal (signum); 2719 ev_feed_signal (signum);
2620} 2720}
2621 2721
2622noinline 2722ecb_noinline
2623void 2723void
2624ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2724ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2625{ 2725{
2626 WL w; 2726 WL w;
2627 2727
2628 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2728 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2629 return; 2729 return;
2630 2730
2631 --signum; 2731 --signum;
2632 2732
2633#if EV_MULTIPLICITY 2733#if EV_MULTIPLICITY
2634 /* it is permissible to try to feed a signal to the wrong loop */ 2734 /* it is permissible to try to feed a signal to the wrong loop */
2635 /* or, likely more useful, feeding a signal nobody is waiting for */ 2735 /* or, likely more useful, feeding a signal nobody is waiting for */
2636 2736
2637 if (expect_false (signals [signum].loop != EV_A)) 2737 if (ecb_expect_false (signals [signum].loop != EV_A))
2638 return; 2738 return;
2639#endif 2739#endif
2640 2740
2641 signals [signum].pending = 0; 2741 signals [signum].pending = 0;
2642 ECB_MEMORY_FENCE_RELEASE; 2742 ECB_MEMORY_FENCE_RELEASE;
… …
2741# include "ev_epoll.c" 2841# include "ev_epoll.c"
2742#endif 2842#endif
2743#if EV_USE_LINUXAIO 2843#if EV_USE_LINUXAIO
2744# include "ev_linuxaio.c" 2844# include "ev_linuxaio.c"
2745#endif 2845#endif
2846#if EV_USE_IOURING
2847# include "ev_iouring.c"
2848#endif
2746#if EV_USE_POLL 2849#if EV_USE_POLL
2747# include "ev_poll.c" 2850# include "ev_poll.c"
2748#endif 2851#endif
2749#if EV_USE_SELECT 2852#if EV_USE_SELECT
2750# include "ev_select.c" 2853# include "ev_select.c"
… …
2782 2885
2783 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2886 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2784 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; 2887 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2785 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2888 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2786 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; 2889 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2890 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2787 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2891 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2788 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; 2892 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2789 2893
2790 return flags; 2894 return flags;
2791} 2895}
… …
2812 2916
2813 /* TODO: linuxaio is very experimental */ 2917 /* TODO: linuxaio is very experimental */
2814#if !EV_RECOMMEND_LINUXAIO 2918#if !EV_RECOMMEND_LINUXAIO
2815 flags &= ~EVBACKEND_LINUXAIO; 2919 flags &= ~EVBACKEND_LINUXAIO;
2816#endif 2920#endif
2921 /* TODO: linuxaio is super experimental */
2922#if !EV_RECOMMEND_IOURING
2923 flags &= ~EVBACKEND_IOURING;
2924#endif
2817 2925
2818 return flags; 2926 return flags;
2819} 2927}
2820 2928
2821ecb_cold 2929ecb_cold
… …
2826 2934
2827 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2935 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2828 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2936 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2829 flags &= ~EVBACKEND_EPOLL; 2937 flags &= ~EVBACKEND_EPOLL;
2830 2938
2939 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2940
2941 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2942 * because our backend_fd is the epoll fd we need as fallback.
2943 * if the kernel ever is fixed, this might change...
2944 */
2945
2831 return flags; 2946 return flags;
2832} 2947}
2833 2948
2834unsigned int 2949unsigned int
2835ev_backend (EV_P) EV_NOEXCEPT 2950ev_backend (EV_P) EV_NOEXCEPT
… …
2887 acquire_cb = acquire; 3002 acquire_cb = acquire;
2888} 3003}
2889#endif 3004#endif
2890 3005
2891/* initialise a loop structure, must be zero-initialised */ 3006/* initialise a loop structure, must be zero-initialised */
2892noinline ecb_cold 3007ecb_noinline ecb_cold
2893static void 3008static void
2894loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 3009loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2895{ 3010{
2896 if (!backend) 3011 if (!backend)
2897 { 3012 {
… …
2965 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2966#endif 3081#endif
2967#if EV_USE_KQUEUE 3082#if EV_USE_KQUEUE
2968 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2969#endif 3084#endif
3085#if EV_USE_IOURING
3086 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3087#endif
2970#if EV_USE_LINUXAIO 3088#if EV_USE_LINUXAIO
2971 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); 3089 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2972#endif 3090#endif
2973#if EV_USE_EPOLL 3091#if EV_USE_EPOLL
2974 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3092 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
… …
3002 return; 3120 return;
3003#endif 3121#endif
3004 3122
3005#if EV_CLEANUP_ENABLE 3123#if EV_CLEANUP_ENABLE
3006 /* queue cleanup watchers (and execute them) */ 3124 /* queue cleanup watchers (and execute them) */
3007 if (expect_false (cleanupcnt)) 3125 if (ecb_expect_false (cleanupcnt))
3008 { 3126 {
3009 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3127 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
3010 EV_INVOKE_PENDING; 3128 EV_INVOKE_PENDING;
3011 } 3129 }
3012#endif 3130#endif
… …
3047#if EV_USE_PORT 3165#if EV_USE_PORT
3048 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3166 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3049#endif 3167#endif
3050#if EV_USE_KQUEUE 3168#if EV_USE_KQUEUE
3051 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); 3169 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3170#endif
3171#if EV_USE_IOURING
3172 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3052#endif 3173#endif
3053#if EV_USE_LINUXAIO 3174#if EV_USE_LINUXAIO
3054 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); 3175 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3055#endif 3176#endif
3056#if EV_USE_EPOLL 3177#if EV_USE_EPOLL
… …
3115 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3236 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3116#endif 3237#endif
3117#if EV_USE_KQUEUE 3238#if EV_USE_KQUEUE
3118 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); 3239 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3119#endif 3240#endif
3241#if EV_USE_IOURING
3242 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3243#endif
3120#if EV_USE_LINUXAIO 3244#if EV_USE_LINUXAIO
3121 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); 3245 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3122#endif 3246#endif
3123#if EV_USE_EPOLL 3247#if EV_USE_EPOLL
3124 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3248 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
… …
3166} 3290}
3167 3291
3168#endif /* multiplicity */ 3292#endif /* multiplicity */
3169 3293
3170#if EV_VERIFY 3294#if EV_VERIFY
3171noinline ecb_cold 3295ecb_noinline ecb_cold
3172static void 3296static void
3173verify_watcher (EV_P_ W w) 3297verify_watcher (EV_P_ W w)
3174{ 3298{
3175 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3299 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3176 3300
3177 if (w->pending) 3301 if (w->pending)
3178 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3302 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3179} 3303}
3180 3304
3181noinline ecb_cold 3305ecb_noinline ecb_cold
3182static void 3306static void
3183verify_heap (EV_P_ ANHE *heap, int N) 3307verify_heap (EV_P_ ANHE *heap, int N)
3184{ 3308{
3185 int i; 3309 int i;
3186 3310
… …
3192 3316
3193 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3317 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3194 } 3318 }
3195} 3319}
3196 3320
3197noinline ecb_cold 3321ecb_noinline ecb_cold
3198static void 3322static void
3199array_verify (EV_P_ W *ws, int cnt) 3323array_verify (EV_P_ W *ws, int cnt)
3200{ 3324{
3201 while (cnt--) 3325 while (cnt--)
3202 { 3326 {
… …
3351 count += pendingcnt [pri]; 3475 count += pendingcnt [pri];
3352 3476
3353 return count; 3477 return count;
3354} 3478}
3355 3479
3356noinline 3480ecb_noinline
3357void 3481void
3358ev_invoke_pending (EV_P) 3482ev_invoke_pending (EV_P)
3359{ 3483{
3360 pendingpri = NUMPRI; 3484 pendingpri = NUMPRI;
3361 3485
… …
3380/* make idle watchers pending. this handles the "call-idle */ 3504/* make idle watchers pending. this handles the "call-idle */
3381/* only when higher priorities are idle" logic */ 3505/* only when higher priorities are idle" logic */
3382inline_size void 3506inline_size void
3383idle_reify (EV_P) 3507idle_reify (EV_P)
3384{ 3508{
3385 if (expect_false (idleall)) 3509 if (ecb_expect_false (idleall))
3386 { 3510 {
3387 int pri; 3511 int pri;
3388 3512
3389 for (pri = NUMPRI; pri--; ) 3513 for (pri = NUMPRI; pri--; )
3390 { 3514 {
… …
3439 } 3563 }
3440} 3564}
3441 3565
3442#if EV_PERIODIC_ENABLE 3566#if EV_PERIODIC_ENABLE
3443 3567
3444noinline 3568ecb_noinline
3445static void 3569static void
3446periodic_recalc (EV_P_ ev_periodic *w) 3570periodic_recalc (EV_P_ ev_periodic *w)
3447{ 3571{
3448 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3572 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3449 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3573 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3452 while (at <= ev_rt_now) 3576 while (at <= ev_rt_now)
3453 { 3577 {
3454 ev_tstamp nat = at + w->interval; 3578 ev_tstamp nat = at + w->interval;
3455 3579
3456 /* when resolution fails us, we use ev_rt_now */ 3580 /* when resolution fails us, we use ev_rt_now */
3457 if (expect_false (nat == at)) 3581 if (ecb_expect_false (nat == at))
3458 { 3582 {
3459 at = ev_rt_now; 3583 at = ev_rt_now;
3460 break; 3584 break;
3461 } 3585 }
3462 3586
… …
3508 } 3632 }
3509} 3633}
3510 3634
3511/* simply recalculate all periodics */ 3635/* simply recalculate all periodics */
3512/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3636/* TODO: maybe ensure that at least one event happens when jumping forward? */
3513noinline ecb_cold 3637ecb_noinline ecb_cold
3514static void 3638static void
3515periodics_reschedule (EV_P) 3639periodics_reschedule (EV_P)
3516{ 3640{
3517 int i; 3641 int i;
3518 3642
… …
3532 reheap (periodics, periodiccnt); 3656 reheap (periodics, periodiccnt);
3533} 3657}
3534#endif 3658#endif
3535 3659
3536/* adjust all timers by a given offset */ 3660/* adjust all timers by a given offset */
3537noinline ecb_cold 3661ecb_noinline ecb_cold
3538static void 3662static void
3539timers_reschedule (EV_P_ ev_tstamp adjust) 3663timers_reschedule (EV_P_ ev_tstamp adjust)
3540{ 3664{
3541 int i; 3665 int i;
3542 3666
… …
3552/* also detect if there was a timejump, and act accordingly */ 3676/* also detect if there was a timejump, and act accordingly */
3553inline_speed void 3677inline_speed void
3554time_update (EV_P_ ev_tstamp max_block) 3678time_update (EV_P_ ev_tstamp max_block)
3555{ 3679{
3556#if EV_USE_MONOTONIC 3680#if EV_USE_MONOTONIC
3557 if (expect_true (have_monotonic)) 3681 if (ecb_expect_true (have_monotonic))
3558 { 3682 {
3559 int i; 3683 int i;
3560 ev_tstamp odiff = rtmn_diff; 3684 ev_tstamp odiff = rtmn_diff;
3561 3685
3562 mn_now = get_clock (); 3686 mn_now = get_clock ();
3563 3687
3564 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3688 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3565 /* interpolate in the meantime */ 3689 /* interpolate in the meantime */
3566 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3690 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3567 { 3691 {
3568 ev_rt_now = rtmn_diff + mn_now; 3692 ev_rt_now = rtmn_diff + mn_now;
3569 return; 3693 return;
3570 } 3694 }
3571 3695
… …
3585 ev_tstamp diff; 3709 ev_tstamp diff;
3586 rtmn_diff = ev_rt_now - mn_now; 3710 rtmn_diff = ev_rt_now - mn_now;
3587 3711
3588 diff = odiff - rtmn_diff; 3712 diff = odiff - rtmn_diff;
3589 3713
3590 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3714 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3591 return; /* all is well */ 3715 return; /* all is well */
3592 3716
3593 ev_rt_now = ev_time (); 3717 ev_rt_now = ev_time ();
3594 mn_now = get_clock (); 3718 mn_now = get_clock ();
3595 now_floor = mn_now; 3719 now_floor = mn_now;
… …
3604 else 3728 else
3605#endif 3729#endif
3606 { 3730 {
3607 ev_rt_now = ev_time (); 3731 ev_rt_now = ev_time ();
3608 3732
3609 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3733 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3610 { 3734 {
3611 /* adjust timers. this is easy, as the offset is the same for all of them */ 3735 /* adjust timers. this is easy, as the offset is the same for all of them */
3612 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3736 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3613#if EV_PERIODIC_ENABLE 3737#if EV_PERIODIC_ENABLE
3614 periodics_reschedule (EV_A); 3738 periodics_reschedule (EV_A);
… …
3637#if EV_VERIFY >= 2 3761#if EV_VERIFY >= 2
3638 ev_verify (EV_A); 3762 ev_verify (EV_A);
3639#endif 3763#endif
3640 3764
3641#ifndef _WIN32 3765#ifndef _WIN32
3642 if (expect_false (curpid)) /* penalise the forking check even more */ 3766 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3643 if (expect_false (getpid () != curpid)) 3767 if (ecb_expect_false (getpid () != curpid))
3644 { 3768 {
3645 curpid = getpid (); 3769 curpid = getpid ();
3646 postfork = 1; 3770 postfork = 1;
3647 } 3771 }
3648#endif 3772#endif
3649 3773
3650#if EV_FORK_ENABLE 3774#if EV_FORK_ENABLE
3651 /* we might have forked, so queue fork handlers */ 3775 /* we might have forked, so queue fork handlers */
3652 if (expect_false (postfork)) 3776 if (ecb_expect_false (postfork))
3653 if (forkcnt) 3777 if (forkcnt)
3654 { 3778 {
3655 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3779 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3656 EV_INVOKE_PENDING; 3780 EV_INVOKE_PENDING;
3657 } 3781 }
3658#endif 3782#endif
3659 3783
3660#if EV_PREPARE_ENABLE 3784#if EV_PREPARE_ENABLE
3661 /* queue prepare watchers (and execute them) */ 3785 /* queue prepare watchers (and execute them) */
3662 if (expect_false (preparecnt)) 3786 if (ecb_expect_false (preparecnt))
3663 { 3787 {
3664 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3788 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3665 EV_INVOKE_PENDING; 3789 EV_INVOKE_PENDING;
3666 } 3790 }
3667#endif 3791#endif
3668 3792
3669 if (expect_false (loop_done)) 3793 if (ecb_expect_false (loop_done))
3670 break; 3794 break;
3671 3795
3672 /* we might have forked, so reify kernel state if necessary */ 3796 /* we might have forked, so reify kernel state if necessary */
3673 if (expect_false (postfork)) 3797 if (ecb_expect_false (postfork))
3674 loop_fork (EV_A); 3798 loop_fork (EV_A);
3675 3799
3676 /* update fd-related kernel structures */ 3800 /* update fd-related kernel structures */
3677 fd_reify (EV_A); 3801 fd_reify (EV_A);
3678 3802
… …
3690 /* from now on, we want a pipe-wake-up */ 3814 /* from now on, we want a pipe-wake-up */
3691 pipe_write_wanted = 1; 3815 pipe_write_wanted = 1;
3692 3816
3693 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3817 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3694 3818
3695 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3819 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3696 { 3820 {
3697 waittime = MAX_BLOCKTIME; 3821 waittime = MAX_BLOCKTIME;
3698 3822
3699 if (timercnt) 3823 if (timercnt)
3700 { 3824 {
… …
3709 if (waittime > to) waittime = to; 3833 if (waittime > to) waittime = to;
3710 } 3834 }
3711#endif 3835#endif
3712 3836
3713 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3837 /* don't let timeouts decrease the waittime below timeout_blocktime */
3714 if (expect_false (waittime < timeout_blocktime)) 3838 if (ecb_expect_false (waittime < timeout_blocktime))
3715 waittime = timeout_blocktime; 3839 waittime = timeout_blocktime;
3716 3840
3717 /* at this point, we NEED to wait, so we have to ensure */ 3841 /* at this point, we NEED to wait, so we have to ensure */
3718 /* to pass a minimum nonzero value to the backend */ 3842 /* to pass a minimum nonzero value to the backend */
3719 if (expect_false (waittime < backend_mintime)) 3843 if (ecb_expect_false (waittime < backend_mintime))
3720 waittime = backend_mintime; 3844 waittime = backend_mintime;
3721 3845
3722 /* extra check because io_blocktime is commonly 0 */ 3846 /* extra check because io_blocktime is commonly 0 */
3723 if (expect_false (io_blocktime)) 3847 if (ecb_expect_false (io_blocktime))
3724 { 3848 {
3725 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3849 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3726 3850
3727 if (sleeptime > waittime - backend_mintime) 3851 if (sleeptime > waittime - backend_mintime)
3728 sleeptime = waittime - backend_mintime; 3852 sleeptime = waittime - backend_mintime;
3729 3853
3730 if (expect_true (sleeptime > 0.)) 3854 if (ecb_expect_true (sleeptime > 0.))
3731 { 3855 {
3732 ev_sleep (sleeptime); 3856 ev_sleep (sleeptime);
3733 waittime -= sleeptime; 3857 waittime -= sleeptime;
3734 } 3858 }
3735 } 3859 }
… …
3749 { 3873 {
3750 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3874 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3751 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3875 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3752 } 3876 }
3753 3877
3754
3755 /* update ev_rt_now, do magic */ 3878 /* update ev_rt_now, do magic */
3756 time_update (EV_A_ waittime + sleeptime); 3879 time_update (EV_A_ waittime + sleeptime);
3757 } 3880 }
3758 3881
3759 /* queue pending timers and reschedule them */ 3882 /* queue pending timers and reschedule them */
… …
3767 idle_reify (EV_A); 3890 idle_reify (EV_A);
3768#endif 3891#endif
3769 3892
3770#if EV_CHECK_ENABLE 3893#if EV_CHECK_ENABLE
3771 /* queue check watchers, to be executed first */ 3894 /* queue check watchers, to be executed first */
3772 if (expect_false (checkcnt)) 3895 if (ecb_expect_false (checkcnt))
3773 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3896 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3774#endif 3897#endif
3775 3898
3776 EV_INVOKE_PENDING; 3899 EV_INVOKE_PENDING;
3777 } 3900 }
3778 while (expect_true ( 3901 while (ecb_expect_true (
3779 activecnt 3902 activecnt
3780 && !loop_done 3903 && !loop_done
3781 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3904 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3782 )); 3905 ));
3783 3906
… …
3847inline_size void 3970inline_size void
3848wlist_del (WL *head, WL elem) 3971wlist_del (WL *head, WL elem)
3849{ 3972{
3850 while (*head) 3973 while (*head)
3851 { 3974 {
3852 if (expect_true (*head == elem)) 3975 if (ecb_expect_true (*head == elem))
3853 { 3976 {
3854 *head = elem->next; 3977 *head = elem->next;
3855 break; 3978 break;
3856 } 3979 }
3857 3980
… …
3874ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 3997ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3875{ 3998{
3876 W w_ = (W)w; 3999 W w_ = (W)w;
3877 int pending = w_->pending; 4000 int pending = w_->pending;
3878 4001
3879 if (expect_true (pending)) 4002 if (ecb_expect_true (pending))
3880 { 4003 {
3881 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4004 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3882 p->w = (W)&pending_w; 4005 p->w = (W)&pending_w;
3883 w_->pending = 0; 4006 w_->pending = 0;
3884 return p->events; 4007 return p->events;
… …
3911 w->active = 0; 4034 w->active = 0;
3912} 4035}
3913 4036
3914/*****************************************************************************/ 4037/*****************************************************************************/
3915 4038
3916noinline 4039ecb_noinline
3917void 4040void
3918ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4041ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3919{ 4042{
3920 int fd = w->fd; 4043 int fd = w->fd;
3921 4044
3922 if (expect_false (ev_is_active (w))) 4045 if (ecb_expect_false (ev_is_active (w)))
3923 return; 4046 return;
3924 4047
3925 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4048 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3926 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4049 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3927 4050
4051#if EV_VERIFY >= 2
4052 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4053#endif
3928 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3929 4055
3930 ev_start (EV_A_ (W)w, 1); 4056 ev_start (EV_A_ (W)w, 1);
3931 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); 4057 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3932 wlist_add (&anfds[fd].head, (WL)w); 4058 wlist_add (&anfds[fd].head, (WL)w);
… …
3938 w->events &= ~EV__IOFDSET; 4064 w->events &= ~EV__IOFDSET;
3939 4065
3940 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3941} 4067}
3942 4068
3943noinline 4069ecb_noinline
3944void 4070void
3945ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4071ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3946{ 4072{
3947 clear_pending (EV_A_ (W)w); 4073 clear_pending (EV_A_ (W)w);
3948 if (expect_false (!ev_is_active (w))) 4074 if (ecb_expect_false (!ev_is_active (w)))
3949 return; 4075 return;
3950 4076
3951 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4077 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3952 4078
4079#if EV_VERIFY >= 2
4080 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4081#endif
3953 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3954 4083
3955 wlist_del (&anfds[w->fd].head, (WL)w); 4084 wlist_del (&anfds[w->fd].head, (WL)w);
3956 ev_stop (EV_A_ (W)w); 4085 ev_stop (EV_A_ (W)w);
3957 4086
3958 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4087 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3959 4088
3960 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3961} 4090}
3962 4091
3963noinline 4092ecb_noinline
3964void 4093void
3965ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4094ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3966{ 4095{
3967 if (expect_false (ev_is_active (w))) 4096 if (ecb_expect_false (ev_is_active (w)))
3968 return; 4097 return;
3969 4098
3970 ev_at (w) += mn_now; 4099 ev_at (w) += mn_now;
3971 4100
3972 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4101 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
… …
3983 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3984 4113
3985 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4114 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3986} 4115}
3987 4116
3988noinline 4117ecb_noinline
3989void 4118void
3990ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4119ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3991{ 4120{
3992 clear_pending (EV_A_ (W)w); 4121 clear_pending (EV_A_ (W)w);
3993 if (expect_false (!ev_is_active (w))) 4122 if (ecb_expect_false (!ev_is_active (w)))
3994 return; 4123 return;
3995 4124
3996 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3997 4126
3998 { 4127 {
… …
4000 4129
4001 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4130 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
4002 4131
4003 --timercnt; 4132 --timercnt;
4004 4133
4005 if (expect_true (active < timercnt + HEAP0)) 4134 if (ecb_expect_true (active < timercnt + HEAP0))
4006 { 4135 {
4007 timers [active] = timers [timercnt + HEAP0]; 4136 timers [active] = timers [timercnt + HEAP0];
4008 adjustheap (timers, timercnt, active); 4137 adjustheap (timers, timercnt, active);
4009 } 4138 }
4010 } 4139 }
… …
4014 ev_stop (EV_A_ (W)w); 4143 ev_stop (EV_A_ (W)w);
4015 4144
4016 EV_FREQUENT_CHECK; 4145 EV_FREQUENT_CHECK;
4017} 4146}
4018 4147
4019noinline 4148ecb_noinline
4020void 4149void
4021ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4150ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
4022{ 4151{
4023 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
4024 4153
… …
4049{ 4178{
4050 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4179 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
4051} 4180}
4052 4181
4053#if EV_PERIODIC_ENABLE 4182#if EV_PERIODIC_ENABLE
4054noinline 4183ecb_noinline
4055void 4184void
4056ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4185ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4057{ 4186{
4058 if (expect_false (ev_is_active (w))) 4187 if (ecb_expect_false (ev_is_active (w)))
4059 return; 4188 return;
4060 4189
4061 if (w->reschedule_cb) 4190 if (w->reschedule_cb)
4062 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4191 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4063 else if (w->interval) 4192 else if (w->interval)
… …
4080 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
4081 4210
4082 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4211 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4083} 4212}
4084 4213
4085noinline 4214ecb_noinline
4086void 4215void
4087ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4216ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4088{ 4217{
4089 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
4090 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
4091 return; 4220 return;
4092 4221
4093 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
4094 4223
4095 { 4224 {
… …
4097 4226
4098 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4227 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4099 4228
4100 --periodiccnt; 4229 --periodiccnt;
4101 4230
4102 if (expect_true (active < periodiccnt + HEAP0)) 4231 if (ecb_expect_true (active < periodiccnt + HEAP0))
4103 { 4232 {
4104 periodics [active] = periodics [periodiccnt + HEAP0]; 4233 periodics [active] = periodics [periodiccnt + HEAP0];
4105 adjustheap (periodics, periodiccnt, active); 4234 adjustheap (periodics, periodiccnt, active);
4106 } 4235 }
4107 } 4236 }
… …
4109 ev_stop (EV_A_ (W)w); 4238 ev_stop (EV_A_ (W)w);
4110 4239
4111 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
4112} 4241}
4113 4242
4114noinline 4243ecb_noinline
4115void 4244void
4116ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4245ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4117{ 4246{
4118 /* TODO: use adjustheap and recalculation */ 4247 /* TODO: use adjustheap and recalculation */
4119 ev_periodic_stop (EV_A_ w); 4248 ev_periodic_stop (EV_A_ w);
… …
4125# define SA_RESTART 0 4254# define SA_RESTART 0
4126#endif 4255#endif
4127 4256
4128#if EV_SIGNAL_ENABLE 4257#if EV_SIGNAL_ENABLE
4129 4258
4130noinline 4259ecb_noinline
4131void 4260void
4132ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4261ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4133{ 4262{
4134 if (expect_false (ev_is_active (w))) 4263 if (ecb_expect_false (ev_is_active (w)))
4135 return; 4264 return;
4136 4265
4137 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4266 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4138 4267
4139#if EV_MULTIPLICITY 4268#if EV_MULTIPLICITY
… …
4208 } 4337 }
4209 4338
4210 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
4211} 4340}
4212 4341
4213noinline 4342ecb_noinline
4214void 4343void
4215ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4344ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4216{ 4345{
4217 clear_pending (EV_A_ (W)w); 4346 clear_pending (EV_A_ (W)w);
4218 if (expect_false (!ev_is_active (w))) 4347 if (ecb_expect_false (!ev_is_active (w)))
4219 return; 4348 return;
4220 4349
4221 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
4222 4351
4223 wlist_del (&signals [w->signum - 1].head, (WL)w); 4352 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4256ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4385ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4257{ 4386{
4258#if EV_MULTIPLICITY 4387#if EV_MULTIPLICITY
4259 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4388 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4260#endif 4389#endif
4261 if (expect_false (ev_is_active (w))) 4390 if (ecb_expect_false (ev_is_active (w)))
4262 return; 4391 return;
4263 4392
4264 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
4265 4394
4266 ev_start (EV_A_ (W)w, 1); 4395 ev_start (EV_A_ (W)w, 1);
… …
4271 4400
4272void 4401void
4273ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4402ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4274{ 4403{
4275 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
4276 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
4277 return; 4406 return;
4278 4407
4279 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
4280 4409
4281 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4410 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4295 4424
4296#define DEF_STAT_INTERVAL 5.0074891 4425#define DEF_STAT_INTERVAL 5.0074891
4297#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4426#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4298#define MIN_STAT_INTERVAL 0.1074891 4427#define MIN_STAT_INTERVAL 0.1074891
4299 4428
4300noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4429ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4301 4430
4302#if EV_USE_INOTIFY 4431#if EV_USE_INOTIFY
4303 4432
4304/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4433/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4305# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4434# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4306 4435
4307noinline 4436ecb_noinline
4308static void 4437static void
4309infy_add (EV_P_ ev_stat *w) 4438infy_add (EV_P_ ev_stat *w)
4310{ 4439{
4311 w->wd = inotify_add_watch (fs_fd, w->path, 4440 w->wd = inotify_add_watch (fs_fd, w->path,
4312 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4441 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4377 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4378 ev_timer_again (EV_A_ &w->timer); 4507 ev_timer_again (EV_A_ &w->timer);
4379 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4508 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4380} 4509}
4381 4510
4382noinline 4511ecb_noinline
4383static void 4512static void
4384infy_del (EV_P_ ev_stat *w) 4513infy_del (EV_P_ ev_stat *w)
4385{ 4514{
4386 int slot; 4515 int slot;
4387 int wd = w->wd; 4516 int wd = w->wd;
… …
4395 4524
4396 /* remove this watcher, if others are watching it, they will rearm */ 4525 /* remove this watcher, if others are watching it, they will rearm */
4397 inotify_rm_watch (fs_fd, wd); 4526 inotify_rm_watch (fs_fd, wd);
4398} 4527}
4399 4528
4400noinline 4529ecb_noinline
4401static void 4530static void
4402infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4531infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4403{ 4532{
4404 if (slot < 0) 4533 if (slot < 0)
4405 /* overflow, need to check for all hash slots */ 4534 /* overflow, need to check for all hash slots */
… …
4551 w->attr.st_nlink = 0; 4680 w->attr.st_nlink = 0;
4552 else if (!w->attr.st_nlink) 4681 else if (!w->attr.st_nlink)
4553 w->attr.st_nlink = 1; 4682 w->attr.st_nlink = 1;
4554} 4683}
4555 4684
4556noinline 4685ecb_noinline
4557static void 4686static void
4558stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4687stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4559{ 4688{
4560 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4689 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4561 4690
… …
4595} 4724}
4596 4725
4597void 4726void
4598ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 4727ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4599{ 4728{
4600 if (expect_false (ev_is_active (w))) 4729 if (ecb_expect_false (ev_is_active (w)))
4601 return; 4730 return;
4602 4731
4603 ev_stat_stat (EV_A_ w); 4732 ev_stat_stat (EV_A_ w);
4604 4733
4605 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4734 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4627 4756
4628void 4757void
4629ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 4758ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4630{ 4759{
4631 clear_pending (EV_A_ (W)w); 4760 clear_pending (EV_A_ (W)w);
4632 if (expect_false (!ev_is_active (w))) 4761 if (ecb_expect_false (!ev_is_active (w)))
4633 return; 4762 return;
4634 4763
4635 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4636 4765
4637#if EV_USE_INOTIFY 4766#if EV_USE_INOTIFY
… …
4652 4781
4653#if EV_IDLE_ENABLE 4782#if EV_IDLE_ENABLE
4654void 4783void
4655ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 4784ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4656{ 4785{
4657 if (expect_false (ev_is_active (w))) 4786 if (ecb_expect_false (ev_is_active (w)))
4658 return; 4787 return;
4659 4788
4660 pri_adjust (EV_A_ (W)w); 4789 pri_adjust (EV_A_ (W)w);
4661 4790
4662 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
… …
4676 4805
4677void 4806void
4678ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 4807ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4679{ 4808{
4680 clear_pending (EV_A_ (W)w); 4809 clear_pending (EV_A_ (W)w);
4681 if (expect_false (!ev_is_active (w))) 4810 if (ecb_expect_false (!ev_is_active (w)))
4682 return; 4811 return;
4683 4812
4684 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
4685 4814
4686 { 4815 {
… …
4699 4828
4700#if EV_PREPARE_ENABLE 4829#if EV_PREPARE_ENABLE
4701void 4830void
4702ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 4831ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4703{ 4832{
4704 if (expect_false (ev_is_active (w))) 4833 if (ecb_expect_false (ev_is_active (w)))
4705 return; 4834 return;
4706 4835
4707 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4708 4837
4709 ev_start (EV_A_ (W)w, ++preparecnt); 4838 ev_start (EV_A_ (W)w, ++preparecnt);
… …
4715 4844
4716void 4845void
4717ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 4846ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4718{ 4847{
4719 clear_pending (EV_A_ (W)w); 4848 clear_pending (EV_A_ (W)w);
4720 if (expect_false (!ev_is_active (w))) 4849 if (ecb_expect_false (!ev_is_active (w)))
4721 return; 4850 return;
4722 4851
4723 EV_FREQUENT_CHECK; 4852 EV_FREQUENT_CHECK;
4724 4853
4725 { 4854 {
… …
4737 4866
4738#if EV_CHECK_ENABLE 4867#if EV_CHECK_ENABLE
4739void 4868void
4740ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 4869ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4741{ 4870{
4742 if (expect_false (ev_is_active (w))) 4871 if (ecb_expect_false (ev_is_active (w)))
4743 return; 4872 return;
4744 4873
4745 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4746 4875
4747 ev_start (EV_A_ (W)w, ++checkcnt); 4876 ev_start (EV_A_ (W)w, ++checkcnt);
… …
4753 4882
4754void 4883void
4755ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 4884ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4756{ 4885{
4757 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
4758 if (expect_false (!ev_is_active (w))) 4887 if (ecb_expect_false (!ev_is_active (w)))
4759 return; 4888 return;
4760 4889
4761 EV_FREQUENT_CHECK; 4890 EV_FREQUENT_CHECK;
4762 4891
4763 { 4892 {
… …
4772 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4773} 4902}
4774#endif 4903#endif
4775 4904
4776#if EV_EMBED_ENABLE 4905#if EV_EMBED_ENABLE
4777noinline 4906ecb_noinline
4778void 4907void
4779ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 4908ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4780{ 4909{
4781 ev_run (w->other, EVRUN_NOWAIT); 4910 ev_run (w->other, EVRUN_NOWAIT);
4782} 4911}
… …
4834#endif 4963#endif
4835 4964
4836void 4965void
4837ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 4966ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4838{ 4967{
4839 if (expect_false (ev_is_active (w))) 4968 if (ecb_expect_false (ev_is_active (w)))
4840 return; 4969 return;
4841 4970
4842 { 4971 {
4843 EV_P = w->other; 4972 EV_P = w->other;
4844 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4973 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4866 4995
4867void 4996void
4868ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 4997ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4869{ 4998{
4870 clear_pending (EV_A_ (W)w); 4999 clear_pending (EV_A_ (W)w);
4871 if (expect_false (!ev_is_active (w))) 5000 if (ecb_expect_false (!ev_is_active (w)))
4872 return; 5001 return;
4873 5002
4874 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4875 5004
4876 ev_io_stop (EV_A_ &w->io); 5005 ev_io_stop (EV_A_ &w->io);
… …
4885 5014
4886#if EV_FORK_ENABLE 5015#if EV_FORK_ENABLE
4887void 5016void
4888ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 5017ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4889{ 5018{
4890 if (expect_false (ev_is_active (w))) 5019 if (ecb_expect_false (ev_is_active (w)))
4891 return; 5020 return;
4892 5021
4893 EV_FREQUENT_CHECK; 5022 EV_FREQUENT_CHECK;
4894 5023
4895 ev_start (EV_A_ (W)w, ++forkcnt); 5024 ev_start (EV_A_ (W)w, ++forkcnt);
… …
4901 5030
4902void 5031void
4903ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5032ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4904{ 5033{
4905 clear_pending (EV_A_ (W)w); 5034 clear_pending (EV_A_ (W)w);
4906 if (expect_false (!ev_is_active (w))) 5035 if (ecb_expect_false (!ev_is_active (w)))
4907 return; 5036 return;
4908 5037
4909 EV_FREQUENT_CHECK; 5038 EV_FREQUENT_CHECK;
4910 5039
4911 { 5040 {
… …
4923 5052
4924#if EV_CLEANUP_ENABLE 5053#if EV_CLEANUP_ENABLE
4925void 5054void
4926ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5055ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4927{ 5056{
4928 if (expect_false (ev_is_active (w))) 5057 if (ecb_expect_false (ev_is_active (w)))
4929 return; 5058 return;
4930 5059
4931 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4932 5061
4933 ev_start (EV_A_ (W)w, ++cleanupcnt); 5062 ev_start (EV_A_ (W)w, ++cleanupcnt);
… …
4941 5070
4942void 5071void
4943ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5072ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4944{ 5073{
4945 clear_pending (EV_A_ (W)w); 5074 clear_pending (EV_A_ (W)w);
4946 if (expect_false (!ev_is_active (w))) 5075 if (ecb_expect_false (!ev_is_active (w)))
4947 return; 5076 return;
4948 5077
4949 EV_FREQUENT_CHECK; 5078 EV_FREQUENT_CHECK;
4950 ev_ref (EV_A); 5079 ev_ref (EV_A);
4951 5080
… …
4964 5093
4965#if EV_ASYNC_ENABLE 5094#if EV_ASYNC_ENABLE
4966void 5095void
4967ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5096ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4968{ 5097{
4969 if (expect_false (ev_is_active (w))) 5098 if (ecb_expect_false (ev_is_active (w)))
4970 return; 5099 return;
4971 5100
4972 w->sent = 0; 5101 w->sent = 0;
4973 5102
4974 evpipe_init (EV_A); 5103 evpipe_init (EV_A);
… …
4984 5113
4985void 5114void
4986ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5115ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4987{ 5116{
4988 clear_pending (EV_A_ (W)w); 5117 clear_pending (EV_A_ (W)w);
4989 if (expect_false (!ev_is_active (w))) 5118 if (ecb_expect_false (!ev_is_active (w)))
4990 return; 5119 return;
4991 5120
4992 EV_FREQUENT_CHECK; 5121 EV_FREQUENT_CHECK;
4993 5122
4994 { 5123 {

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