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Comparing libev/ev.c (file contents):
Revision 1.479 by root, Sun Dec 20 01:31:17 2015 UTC vs.
Revision 1.488 by root, Fri Dec 21 06:57:09 2018 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2018 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
… …
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
… …
363 365
364#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 368#endif
367 369
368#ifdef ANDROID 370#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 372# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
… …
607 #define ECB_CLANG_EXTENSION(x) 0 609 #define ECB_CLANG_EXTENSION(x) 0
608#endif 610#endif
609 611
610#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
614#define ECB_CPP14 (__cplusplus >= 201402L)
615#define ECB_CPP17 (__cplusplus >= 201703L)
612 616
613#if ECB_CPP 617#if ECB_CPP
614 #define ECB_C 0 618 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 619 #define ECB_STDC_VERSION 0
616#else 620#else
… …
618 #define ECB_STDC_VERSION __STDC_VERSION__ 622 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 623#endif
620 624
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 625#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 626#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
627#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 628
624#if ECB_CPP 629#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 630 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 631 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 632 #define ECB_EXTERN_C_END }
… …
656#ifndef ECB_MEMORY_FENCE 661#ifndef ECB_MEMORY_FENCE
657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
658 #if __i386 || __i386__ 663 #if __i386 || __i386__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
662 #elif ECB_GCC_AMD64 667 #elif ECB_GCC_AMD64
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 671 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \ 673 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ 674 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ 675 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
… …
1527#define inline_size ecb_inline 1532#define inline_size ecb_inline
1528 1533
1529#if EV_FEATURE_CODE 1534#if EV_FEATURE_CODE
1530# define inline_speed ecb_inline 1535# define inline_speed ecb_inline
1531#else 1536#else
1532# define inline_speed static noinline 1537# define inline_speed noinline static
1533#endif 1538#endif
1534 1539
1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1536 1541
1537#if EV_MINPRI == EV_MAXPRI 1542#if EV_MINPRI == EV_MAXPRI
… …
1584#else 1589#else
1585 1590
1586#include <float.h> 1591#include <float.h>
1587 1592
1588/* a floor() replacement function, should be independent of ev_tstamp type */ 1593/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline
1589static ev_tstamp noinline 1595static ev_tstamp
1590ev_floor (ev_tstamp v) 1596ev_floor (ev_tstamp v)
1591{ 1597{
1592 /* the choice of shift factor is not terribly important */ 1598 /* the choice of shift factor is not terribly important */
1593#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1594 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1626 1632
1627#ifdef __linux 1633#ifdef __linux
1628# include <sys/utsname.h> 1634# include <sys/utsname.h>
1629#endif 1635#endif
1630 1636
1631static unsigned int noinline ecb_cold 1637noinline ecb_cold
1638static unsigned int
1632ev_linux_version (void) 1639ev_linux_version (void)
1633{ 1640{
1634#ifdef __linux 1641#ifdef __linux
1635 unsigned int v = 0; 1642 unsigned int v = 0;
1636 struct utsname buf; 1643 struct utsname buf;
… …
1665} 1672}
1666 1673
1667/*****************************************************************************/ 1674/*****************************************************************************/
1668 1675
1669#if EV_AVOID_STDIO 1676#if EV_AVOID_STDIO
1670static void noinline ecb_cold 1677noinline ecb_cold
1678static void
1671ev_printerr (const char *msg) 1679ev_printerr (const char *msg)
1672{ 1680{
1673 write (STDERR_FILENO, msg, strlen (msg)); 1681 write (STDERR_FILENO, msg, strlen (msg));
1674} 1682}
1675#endif 1683#endif
1676 1684
1677static void (*syserr_cb)(const char *msg) EV_THROW; 1685static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1678 1686
1679void ecb_cold 1687ecb_cold
1688void
1680ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1681{ 1690{
1682 syserr_cb = cb; 1691 syserr_cb = cb;
1683} 1692}
1684 1693
1685static void noinline ecb_cold 1694noinline ecb_cold
1695static void
1686ev_syserr (const char *msg) 1696ev_syserr (const char *msg)
1687{ 1697{
1688 if (!msg) 1698 if (!msg)
1689 msg = "(libev) system error"; 1699 msg = "(libev) system error";
1690 1700
… …
1703 abort (); 1713 abort ();
1704 } 1714 }
1705} 1715}
1706 1716
1707static void * 1717static void *
1708ev_realloc_emul (void *ptr, long size) EV_THROW 1718ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1709{ 1719{
1710 /* some systems, notably openbsd and darwin, fail to properly 1720 /* some systems, notably openbsd and darwin, fail to properly
1711 * implement realloc (x, 0) (as required by both ansi c-89 and 1721 * implement realloc (x, 0) (as required by both ansi c-89 and
1712 * the single unix specification, so work around them here. 1722 * the single unix specification, so work around them here.
1713 * recently, also (at least) fedora and debian started breaking it, 1723 * recently, also (at least) fedora and debian started breaking it,
… …
1719 1729
1720 free (ptr); 1730 free (ptr);
1721 return 0; 1731 return 0;
1722} 1732}
1723 1733
1724static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1734static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1725 1735
1726void ecb_cold 1736ecb_cold
1737void
1727ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1738ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1728{ 1739{
1729 alloc = cb; 1740 alloc = cb;
1730} 1741}
1731 1742
1732inline_speed void * 1743inline_speed void *
… …
1849 1860
1850/*****************************************************************************/ 1861/*****************************************************************************/
1851 1862
1852#ifndef EV_HAVE_EV_TIME 1863#ifndef EV_HAVE_EV_TIME
1853ev_tstamp 1864ev_tstamp
1854ev_time (void) EV_THROW 1865ev_time (void) EV_NOEXCEPT
1855{ 1866{
1856#if EV_USE_REALTIME 1867#if EV_USE_REALTIME
1857 if (expect_true (have_realtime)) 1868 if (expect_true (have_realtime))
1858 { 1869 {
1859 struct timespec ts; 1870 struct timespec ts;
… …
1883 return ev_time (); 1894 return ev_time ();
1884} 1895}
1885 1896
1886#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1887ev_tstamp 1898ev_tstamp
1888ev_now (EV_P) EV_THROW 1899ev_now (EV_P) EV_NOEXCEPT
1889{ 1900{
1890 return ev_rt_now; 1901 return ev_rt_now;
1891} 1902}
1892#endif 1903#endif
1893 1904
1894void 1905void
1895ev_sleep (ev_tstamp delay) EV_THROW 1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1896{ 1907{
1897 if (delay > 0.) 1908 if (delay > 0.)
1898 { 1909 {
1899#if EV_USE_NANOSLEEP 1910#if EV_USE_NANOSLEEP
1900 struct timespec ts; 1911 struct timespec ts;
1901 1912
1902 EV_TS_SET (ts, delay); 1913 EV_TS_SET (ts, delay);
1903 nanosleep (&ts, 0); 1914 nanosleep (&ts, 0);
1904#elif defined _WIN32 1915#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */
1905 Sleep ((unsigned long)(delay * 1e3)); 1918 Sleep ((unsigned long)(delay * 1e3));
1906#else 1919#else
1907 struct timeval tv; 1920 struct timeval tv;
1908 1921
1909 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1940 } 1953 }
1941 1954
1942 return ncur; 1955 return ncur;
1943} 1956}
1944 1957
1945static void * noinline ecb_cold 1958noinline ecb_cold
1959static void *
1946array_realloc (int elem, void *base, int *cur, int cnt) 1960array_realloc (int elem, void *base, int *cur, int cnt)
1947{ 1961{
1948 *cur = array_nextsize (elem, *cur, cnt); 1962 *cur = array_nextsize (elem, *cur, cnt);
1949 return ev_realloc (base, elem * *cur); 1963 return ev_realloc (base, elem * *cur);
1950} 1964}
… …
1953 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1967 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1954 1968
1955#define array_needsize(type,base,cur,cnt,init) \ 1969#define array_needsize(type,base,cur,cnt,init) \
1956 if (expect_false ((cnt) > (cur))) \ 1970 if (expect_false ((cnt) > (cur))) \
1957 { \ 1971 { \
1958 int ecb_unused ocur_ = (cur); \ 1972 ecb_unused int ocur_ = (cur); \
1959 (base) = (type *)array_realloc \ 1973 (base) = (type *)array_realloc \
1960 (sizeof (type), (base), &(cur), (cnt)); \ 1974 (sizeof (type), (base), &(cur), (cnt)); \
1961 init ((base) + (ocur_), (cur) - ocur_); \ 1975 init ((base) + (ocur_), (cur) - ocur_); \
1962 } 1976 }
1963 1977
… …
1975 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1976 1990
1977/*****************************************************************************/ 1991/*****************************************************************************/
1978 1992
1979/* dummy callback for pending events */ 1993/* dummy callback for pending events */
1980static void noinline 1994noinline
1995static void
1981pendingcb (EV_P_ ev_prepare *w, int revents) 1996pendingcb (EV_P_ ev_prepare *w, int revents)
1982{ 1997{
1983} 1998}
1984 1999
1985void noinline 2000noinline
2001void
1986ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1987{ 2003{
1988 W w_ = (W)w; 2004 W w_ = (W)w;
1989 int pri = ABSPRI (w_); 2005 int pri = ABSPRI (w_);
1990 2006
1991 if (expect_false (w_->pending)) 2007 if (expect_false (w_->pending))
… …
2052 if (expect_true (!anfd->reify)) 2068 if (expect_true (!anfd->reify))
2053 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
2054} 2070}
2055 2071
2056void 2072void
2057ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2058{ 2074{
2059 if (fd >= 0 && fd < anfdmax) 2075 if (fd >= 0 && fd < anfdmax)
2060 fd_event_nocheck (EV_A_ fd, revents); 2076 fd_event_nocheck (EV_A_ fd, revents);
2061} 2077}
2062 2078
… …
2120 2136
2121 fdchangecnt = 0; 2137 fdchangecnt = 0;
2122} 2138}
2123 2139
2124/* something about the given fd changed */ 2140/* something about the given fd changed */
2125inline_size void 2141inline_size
2142void
2126fd_change (EV_P_ int fd, int flags) 2143fd_change (EV_P_ int fd, int flags)
2127{ 2144{
2128 unsigned char reify = anfds [fd].reify; 2145 unsigned char reify = anfds [fd].reify;
2129 anfds [fd].reify |= flags; 2146 anfds [fd].reify |= flags;
2130 2147
… …
2135 fdchanges [fdchangecnt - 1] = fd; 2152 fdchanges [fdchangecnt - 1] = fd;
2136 } 2153 }
2137} 2154}
2138 2155
2139/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
2140inline_speed void ecb_cold 2157inline_speed ecb_cold void
2141fd_kill (EV_P_ int fd) 2158fd_kill (EV_P_ int fd)
2142{ 2159{
2143 ev_io *w; 2160 ev_io *w;
2144 2161
2145 while ((w = (ev_io *)anfds [fd].head)) 2162 while ((w = (ev_io *)anfds [fd].head))
… …
2148 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2165 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2149 } 2166 }
2150} 2167}
2151 2168
2152/* check whether the given fd is actually valid, for error recovery */ 2169/* check whether the given fd is actually valid, for error recovery */
2153inline_size int ecb_cold 2170inline_size ecb_cold int
2154fd_valid (int fd) 2171fd_valid (int fd)
2155{ 2172{
2156#ifdef _WIN32 2173#ifdef _WIN32
2157 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2174 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2158#else 2175#else
2159 return fcntl (fd, F_GETFD) != -1; 2176 return fcntl (fd, F_GETFD) != -1;
2160#endif 2177#endif
2161} 2178}
2162 2179
2163/* called on EBADF to verify fds */ 2180/* called on EBADF to verify fds */
2164static void noinline ecb_cold 2181noinline ecb_cold
2182static void
2165fd_ebadf (EV_P) 2183fd_ebadf (EV_P)
2166{ 2184{
2167 int fd; 2185 int fd;
2168 2186
2169 for (fd = 0; fd < anfdmax; ++fd) 2187 for (fd = 0; fd < anfdmax; ++fd)
… …
2171 if (!fd_valid (fd) && errno == EBADF) 2189 if (!fd_valid (fd) && errno == EBADF)
2172 fd_kill (EV_A_ fd); 2190 fd_kill (EV_A_ fd);
2173} 2191}
2174 2192
2175/* called on ENOMEM in select/poll to kill some fds and retry */ 2193/* called on ENOMEM in select/poll to kill some fds and retry */
2176static void noinline ecb_cold 2194noinline ecb_cold
2195static void
2177fd_enomem (EV_P) 2196fd_enomem (EV_P)
2178{ 2197{
2179 int fd; 2198 int fd;
2180 2199
2181 for (fd = anfdmax; fd--; ) 2200 for (fd = anfdmax; fd--; )
… …
2185 break; 2204 break;
2186 } 2205 }
2187} 2206}
2188 2207
2189/* usually called after fork if backend needs to re-arm all fds from scratch */ 2208/* usually called after fork if backend needs to re-arm all fds from scratch */
2190static void noinline 2209noinline
2210static void
2191fd_rearm_all (EV_P) 2211fd_rearm_all (EV_P)
2192{ 2212{
2193 int fd; 2213 int fd;
2194 2214
2195 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
2376 2396
2377/*****************************************************************************/ 2397/*****************************************************************************/
2378 2398
2379#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2380 2400
2381static void noinline ecb_cold 2401noinline ecb_cold
2402static void
2382evpipe_init (EV_P) 2403evpipe_init (EV_P)
2383{ 2404{
2384 if (!ev_is_active (&pipe_w)) 2405 if (!ev_is_active (&pipe_w))
2385 { 2406 {
2386 int fds [2]; 2407 int fds [2];
… …
2457#endif 2478#endif
2458 { 2479 {
2459#ifdef _WIN32 2480#ifdef _WIN32
2460 WSABUF buf; 2481 WSABUF buf;
2461 DWORD sent; 2482 DWORD sent;
2462 buf.buf = &buf; 2483 buf.buf = (char *)&buf;
2463 buf.len = 1; 2484 buf.len = 1;
2464 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2485 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2465#else 2486#else
2466 write (evpipe [1], &(evpipe [1]), 1); 2487 write (evpipe [1], &(evpipe [1]), 1);
2467#endif 2488#endif
… …
2539} 2560}
2540 2561
2541/*****************************************************************************/ 2562/*****************************************************************************/
2542 2563
2543void 2564void
2544ev_feed_signal (int signum) EV_THROW 2565ev_feed_signal (int signum) EV_NOEXCEPT
2545{ 2566{
2546#if EV_MULTIPLICITY 2567#if EV_MULTIPLICITY
2547 EV_P; 2568 EV_P;
2548 ECB_MEMORY_FENCE_ACQUIRE; 2569 ECB_MEMORY_FENCE_ACQUIRE;
2549 EV_A = signals [signum - 1].loop; 2570 EV_A = signals [signum - 1].loop;
… …
2564#endif 2585#endif
2565 2586
2566 ev_feed_signal (signum); 2587 ev_feed_signal (signum);
2567} 2588}
2568 2589
2569void noinline 2590noinline
2591void
2570ev_feed_signal_event (EV_P_ int signum) EV_THROW 2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2571{ 2593{
2572 WL w; 2594 WL w;
2573 2595
2574 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2596 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2575 return; 2597 return;
… …
2691#endif 2713#endif
2692#if EV_USE_SELECT 2714#if EV_USE_SELECT
2693# include "ev_select.c" 2715# include "ev_select.c"
2694#endif 2716#endif
2695 2717
2696int ecb_cold 2718ecb_cold int
2697ev_version_major (void) EV_THROW 2719ev_version_major (void) EV_NOEXCEPT
2698{ 2720{
2699 return EV_VERSION_MAJOR; 2721 return EV_VERSION_MAJOR;
2700} 2722}
2701 2723
2702int ecb_cold 2724ecb_cold int
2703ev_version_minor (void) EV_THROW 2725ev_version_minor (void) EV_NOEXCEPT
2704{ 2726{
2705 return EV_VERSION_MINOR; 2727 return EV_VERSION_MINOR;
2706} 2728}
2707 2729
2708/* return true if we are running with elevated privileges and should ignore env variables */ 2730/* return true if we are running with elevated privileges and should ignore env variables */
2709int inline_size ecb_cold 2731inline_size ecb_cold int
2710enable_secure (void) 2732enable_secure (void)
2711{ 2733{
2712#ifdef _WIN32 2734#ifdef _WIN32
2713 return 0; 2735 return 0;
2714#else 2736#else
2715 return getuid () != geteuid () 2737 return getuid () != geteuid ()
2716 || getgid () != getegid (); 2738 || getgid () != getegid ();
2717#endif 2739#endif
2718} 2740}
2719 2741
2720unsigned int ecb_cold 2742ecb_cold
2743unsigned int
2721ev_supported_backends (void) EV_THROW 2744ev_supported_backends (void) EV_NOEXCEPT
2722{ 2745{
2723 unsigned int flags = 0; 2746 unsigned int flags = 0;
2724 2747
2725 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2726 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2729 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2730 2753
2731 return flags; 2754 return flags;
2732} 2755}
2733 2756
2734unsigned int ecb_cold 2757ecb_cold
2758unsigned int
2735ev_recommended_backends (void) EV_THROW 2759ev_recommended_backends (void) EV_NOEXCEPT
2736{ 2760{
2737 unsigned int flags = ev_supported_backends (); 2761 unsigned int flags = ev_supported_backends ();
2738 2762
2739#ifndef __NetBSD__ 2763#ifndef __NetBSD__
2740 /* kqueue is borked on everything but netbsd apparently */ 2764 /* kqueue is borked on everything but netbsd apparently */
… …
2751#endif 2775#endif
2752 2776
2753 return flags; 2777 return flags;
2754} 2778}
2755 2779
2756unsigned int ecb_cold 2780ecb_cold
2781unsigned int
2757ev_embeddable_backends (void) EV_THROW 2782ev_embeddable_backends (void) EV_NOEXCEPT
2758{ 2783{
2759 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2760 2785
2761 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2762 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2764 2789
2765 return flags; 2790 return flags;
2766} 2791}
2767 2792
2768unsigned int 2793unsigned int
2769ev_backend (EV_P) EV_THROW 2794ev_backend (EV_P) EV_NOEXCEPT
2770{ 2795{
2771 return backend; 2796 return backend;
2772} 2797}
2773 2798
2774#if EV_FEATURE_API 2799#if EV_FEATURE_API
2775unsigned int 2800unsigned int
2776ev_iteration (EV_P) EV_THROW 2801ev_iteration (EV_P) EV_NOEXCEPT
2777{ 2802{
2778 return loop_count; 2803 return loop_count;
2779} 2804}
2780 2805
2781unsigned int 2806unsigned int
2782ev_depth (EV_P) EV_THROW 2807ev_depth (EV_P) EV_NOEXCEPT
2783{ 2808{
2784 return loop_depth; 2809 return loop_depth;
2785} 2810}
2786 2811
2787void 2812void
2788ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2813ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2789{ 2814{
2790 io_blocktime = interval; 2815 io_blocktime = interval;
2791} 2816}
2792 2817
2793void 2818void
2794ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2819ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2795{ 2820{
2796 timeout_blocktime = interval; 2821 timeout_blocktime = interval;
2797} 2822}
2798 2823
2799void 2824void
2800ev_set_userdata (EV_P_ void *data) EV_THROW 2825ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2801{ 2826{
2802 userdata = data; 2827 userdata = data;
2803} 2828}
2804 2829
2805void * 2830void *
2806ev_userdata (EV_P) EV_THROW 2831ev_userdata (EV_P) EV_NOEXCEPT
2807{ 2832{
2808 return userdata; 2833 return userdata;
2809} 2834}
2810 2835
2811void 2836void
2812ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2837ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2813{ 2838{
2814 invoke_cb = invoke_pending_cb; 2839 invoke_cb = invoke_pending_cb;
2815} 2840}
2816 2841
2817void 2842void
2818ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2843ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2819{ 2844{
2820 release_cb = release; 2845 release_cb = release;
2821 acquire_cb = acquire; 2846 acquire_cb = acquire;
2822} 2847}
2823#endif 2848#endif
2824 2849
2825/* initialise a loop structure, must be zero-initialised */ 2850/* initialise a loop structure, must be zero-initialised */
2826static void noinline ecb_cold 2851noinline ecb_cold
2852static void
2827loop_init (EV_P_ unsigned int flags) EV_THROW 2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2828{ 2854{
2829 if (!backend) 2855 if (!backend)
2830 { 2856 {
2831 origflags = flags; 2857 origflags = flags;
2832 2858
… …
2918#endif 2944#endif
2919 } 2945 }
2920} 2946}
2921 2947
2922/* free up a loop structure */ 2948/* free up a loop structure */
2923void ecb_cold 2949ecb_cold
2950void
2924ev_loop_destroy (EV_P) 2951ev_loop_destroy (EV_P)
2925{ 2952{
2926 int i; 2953 int i;
2927 2954
2928#if EV_MULTIPLICITY 2955#if EV_MULTIPLICITY
… …
3070 postfork = 0; 3097 postfork = 0;
3071} 3098}
3072 3099
3073#if EV_MULTIPLICITY 3100#if EV_MULTIPLICITY
3074 3101
3102ecb_cold
3075struct ev_loop * ecb_cold 3103struct ev_loop *
3076ev_loop_new (unsigned int flags) EV_THROW 3104ev_loop_new (unsigned int flags) EV_NOEXCEPT
3077{ 3105{
3078 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3106 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3079 3107
3080 memset (EV_A, 0, sizeof (struct ev_loop)); 3108 memset (EV_A, 0, sizeof (struct ev_loop));
3081 loop_init (EV_A_ flags); 3109 loop_init (EV_A_ flags);
… …
3088} 3116}
3089 3117
3090#endif /* multiplicity */ 3118#endif /* multiplicity */
3091 3119
3092#if EV_VERIFY 3120#if EV_VERIFY
3093static void noinline ecb_cold 3121noinline ecb_cold
3122static void
3094verify_watcher (EV_P_ W w) 3123verify_watcher (EV_P_ W w)
3095{ 3124{
3096 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3097 3126
3098 if (w->pending) 3127 if (w->pending)
3099 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3100} 3129}
3101 3130
3102static void noinline ecb_cold 3131noinline ecb_cold
3132static void
3103verify_heap (EV_P_ ANHE *heap, int N) 3133verify_heap (EV_P_ ANHE *heap, int N)
3104{ 3134{
3105 int i; 3135 int i;
3106 3136
3107 for (i = HEAP0; i < N + HEAP0; ++i) 3137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
3112 3142
3113 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3114 } 3144 }
3115} 3145}
3116 3146
3117static void noinline ecb_cold 3147noinline ecb_cold
3148static void
3118array_verify (EV_P_ W *ws, int cnt) 3149array_verify (EV_P_ W *ws, int cnt)
3119{ 3150{
3120 while (cnt--) 3151 while (cnt--)
3121 { 3152 {
3122 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
3125} 3156}
3126#endif 3157#endif
3127 3158
3128#if EV_FEATURE_API 3159#if EV_FEATURE_API
3129void ecb_cold 3160void ecb_cold
3130ev_verify (EV_P) EV_THROW 3161ev_verify (EV_P) EV_NOEXCEPT
3131{ 3162{
3132#if EV_VERIFY 3163#if EV_VERIFY
3133 int i; 3164 int i;
3134 WL w, w2; 3165 WL w, w2;
3135 3166
… …
3211#endif 3242#endif
3212} 3243}
3213#endif 3244#endif
3214 3245
3215#if EV_MULTIPLICITY 3246#if EV_MULTIPLICITY
3247ecb_cold
3216struct ev_loop * ecb_cold 3248struct ev_loop *
3217#else 3249#else
3218int 3250int
3219#endif 3251#endif
3220ev_default_loop (unsigned int flags) EV_THROW 3252ev_default_loop (unsigned int flags) EV_NOEXCEPT
3221{ 3253{
3222 if (!ev_default_loop_ptr) 3254 if (!ev_default_loop_ptr)
3223 { 3255 {
3224#if EV_MULTIPLICITY 3256#if EV_MULTIPLICITY
3225 EV_P = ev_default_loop_ptr = &default_loop_struct; 3257 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3244 3276
3245 return ev_default_loop_ptr; 3277 return ev_default_loop_ptr;
3246} 3278}
3247 3279
3248void 3280void
3249ev_loop_fork (EV_P) EV_THROW 3281ev_loop_fork (EV_P) EV_NOEXCEPT
3250{ 3282{
3251 postfork = 1; 3283 postfork = 1;
3252} 3284}
3253 3285
3254/*****************************************************************************/ 3286/*****************************************************************************/
… …
3258{ 3290{
3259 EV_CB_INVOKE ((W)w, revents); 3291 EV_CB_INVOKE ((W)w, revents);
3260} 3292}
3261 3293
3262unsigned int 3294unsigned int
3263ev_pending_count (EV_P) EV_THROW 3295ev_pending_count (EV_P) EV_NOEXCEPT
3264{ 3296{
3265 int pri; 3297 int pri;
3266 unsigned int count = 0; 3298 unsigned int count = 0;
3267 3299
3268 for (pri = NUMPRI; pri--; ) 3300 for (pri = NUMPRI; pri--; )
3269 count += pendingcnt [pri]; 3301 count += pendingcnt [pri];
3270 3302
3271 return count; 3303 return count;
3272} 3304}
3273 3305
3274void noinline 3306noinline
3307void
3275ev_invoke_pending (EV_P) 3308ev_invoke_pending (EV_P)
3276{ 3309{
3277 pendingpri = NUMPRI; 3310 pendingpri = NUMPRI;
3278 3311
3279 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3312 do
3280 { 3313 {
3281 --pendingpri; 3314 --pendingpri;
3282 3315
3316 /* pendingpri possibly gets modified in the inner loop */
3283 while (pendingcnt [pendingpri]) 3317 while (pendingcnt [pendingpri])
3284 { 3318 {
3285 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3319 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3286 3320
3287 p->w->pending = 0; 3321 p->w->pending = 0;
3288 EV_CB_INVOKE (p->w, p->events); 3322 EV_CB_INVOKE (p->w, p->events);
3289 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
3290 } 3324 }
3291 } 3325 }
3326 while (pendingpri);
3292} 3327}
3293 3328
3294#if EV_IDLE_ENABLE 3329#if EV_IDLE_ENABLE
3295/* make idle watchers pending. this handles the "call-idle */ 3330/* make idle watchers pending. this handles the "call-idle */
3296/* only when higher priorities are idle" logic */ 3331/* only when higher priorities are idle" logic */
… …
3354 } 3389 }
3355} 3390}
3356 3391
3357#if EV_PERIODIC_ENABLE 3392#if EV_PERIODIC_ENABLE
3358 3393
3359static void noinline 3394noinline
3395static void
3360periodic_recalc (EV_P_ ev_periodic *w) 3396periodic_recalc (EV_P_ ev_periodic *w)
3361{ 3397{
3362 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3363 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3364 3400
… …
3422 } 3458 }
3423} 3459}
3424 3460
3425/* simply recalculate all periodics */ 3461/* simply recalculate all periodics */
3426/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3462/* TODO: maybe ensure that at least one event happens when jumping forward? */
3427static void noinline ecb_cold 3463noinline ecb_cold
3464static void
3428periodics_reschedule (EV_P) 3465periodics_reschedule (EV_P)
3429{ 3466{
3430 int i; 3467 int i;
3431 3468
3432 /* adjust periodics after time jump */ 3469 /* adjust periodics after time jump */
… …
3445 reheap (periodics, periodiccnt); 3482 reheap (periodics, periodiccnt);
3446} 3483}
3447#endif 3484#endif
3448 3485
3449/* adjust all timers by a given offset */ 3486/* adjust all timers by a given offset */
3450static void noinline ecb_cold 3487noinline ecb_cold
3488static void
3451timers_reschedule (EV_P_ ev_tstamp adjust) 3489timers_reschedule (EV_P_ ev_tstamp adjust)
3452{ 3490{
3453 int i; 3491 int i;
3454 3492
3455 for (i = 0; i < timercnt; ++i) 3493 for (i = 0; i < timercnt; ++i)
… …
3702 3740
3703 return activecnt; 3741 return activecnt;
3704} 3742}
3705 3743
3706void 3744void
3707ev_break (EV_P_ int how) EV_THROW 3745ev_break (EV_P_ int how) EV_NOEXCEPT
3708{ 3746{
3709 loop_done = how; 3747 loop_done = how;
3710} 3748}
3711 3749
3712void 3750void
3713ev_ref (EV_P) EV_THROW 3751ev_ref (EV_P) EV_NOEXCEPT
3714{ 3752{
3715 ++activecnt; 3753 ++activecnt;
3716} 3754}
3717 3755
3718void 3756void
3719ev_unref (EV_P) EV_THROW 3757ev_unref (EV_P) EV_NOEXCEPT
3720{ 3758{
3721 --activecnt; 3759 --activecnt;
3722} 3760}
3723 3761
3724void 3762void
3725ev_now_update (EV_P) EV_THROW 3763ev_now_update (EV_P) EV_NOEXCEPT
3726{ 3764{
3727 time_update (EV_A_ 1e100); 3765 time_update (EV_A_ 1e100);
3728} 3766}
3729 3767
3730void 3768void
3731ev_suspend (EV_P) EV_THROW 3769ev_suspend (EV_P) EV_NOEXCEPT
3732{ 3770{
3733 ev_now_update (EV_A); 3771 ev_now_update (EV_A);
3734} 3772}
3735 3773
3736void 3774void
3737ev_resume (EV_P) EV_THROW 3775ev_resume (EV_P) EV_NOEXCEPT
3738{ 3776{
3739 ev_tstamp mn_prev = mn_now; 3777 ev_tstamp mn_prev = mn_now;
3740 3778
3741 ev_now_update (EV_A); 3779 ev_now_update (EV_A);
3742 timers_reschedule (EV_A_ mn_now - mn_prev); 3780 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3781 w->pending = 0; 3819 w->pending = 0;
3782 } 3820 }
3783} 3821}
3784 3822
3785int 3823int
3786ev_clear_pending (EV_P_ void *w) EV_THROW 3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3787{ 3825{
3788 W w_ = (W)w; 3826 W w_ = (W)w;
3789 int pending = w_->pending; 3827 int pending = w_->pending;
3790 3828
3791 if (expect_true (pending)) 3829 if (expect_true (pending))
… …
3823 w->active = 0; 3861 w->active = 0;
3824} 3862}
3825 3863
3826/*****************************************************************************/ 3864/*****************************************************************************/
3827 3865
3828void noinline 3866noinline
3867void
3829ev_io_start (EV_P_ ev_io *w) EV_THROW 3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3830{ 3869{
3831 int fd = w->fd; 3870 int fd = w->fd;
3832 3871
3833 if (expect_false (ev_is_active (w))) 3872 if (expect_false (ev_is_active (w)))
3834 return; 3873 return;
… …
3849 w->events &= ~EV__IOFDSET; 3888 w->events &= ~EV__IOFDSET;
3850 3889
3851 EV_FREQUENT_CHECK; 3890 EV_FREQUENT_CHECK;
3852} 3891}
3853 3892
3854void noinline 3893noinline
3894void
3855ev_io_stop (EV_P_ ev_io *w) EV_THROW 3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3856{ 3896{
3857 clear_pending (EV_A_ (W)w); 3897 clear_pending (EV_A_ (W)w);
3858 if (expect_false (!ev_is_active (w))) 3898 if (expect_false (!ev_is_active (w)))
3859 return; 3899 return;
3860 3900
… …
3868 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3869 3909
3870 EV_FREQUENT_CHECK; 3910 EV_FREQUENT_CHECK;
3871} 3911}
3872 3912
3873void noinline 3913noinline
3914void
3874ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3875{ 3916{
3876 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3877 return; 3918 return;
3878 3919
3879 ev_at (w) += mn_now; 3920 ev_at (w) += mn_now;
… …
3892 EV_FREQUENT_CHECK; 3933 EV_FREQUENT_CHECK;
3893 3934
3894 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3895} 3936}
3896 3937
3897void noinline 3938noinline
3939void
3898ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3899{ 3941{
3900 clear_pending (EV_A_ (W)w); 3942 clear_pending (EV_A_ (W)w);
3901 if (expect_false (!ev_is_active (w))) 3943 if (expect_false (!ev_is_active (w)))
3902 return; 3944 return;
3903 3945
… …
3922 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3923 3965
3924 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3925} 3967}
3926 3968
3927void noinline 3969noinline
3970void
3928ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3929{ 3972{
3930 EV_FREQUENT_CHECK; 3973 EV_FREQUENT_CHECK;
3931 3974
3932 clear_pending (EV_A_ (W)w); 3975 clear_pending (EV_A_ (W)w);
3933 3976
… …
3950 3993
3951 EV_FREQUENT_CHECK; 3994 EV_FREQUENT_CHECK;
3952} 3995}
3953 3996
3954ev_tstamp 3997ev_tstamp
3955ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3956{ 3999{
3957 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3958} 4001}
3959 4002
3960#if EV_PERIODIC_ENABLE 4003#if EV_PERIODIC_ENABLE
3961void noinline 4004noinline
4005void
3962ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3963{ 4007{
3964 if (expect_false (ev_is_active (w))) 4008 if (expect_false (ev_is_active (w)))
3965 return; 4009 return;
3966 4010
3967 if (w->reschedule_cb) 4011 if (w->reschedule_cb)
… …
3986 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3987 4031
3988 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3989} 4033}
3990 4034
3991void noinline 4035noinline
4036void
3992ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3993{ 4038{
3994 clear_pending (EV_A_ (W)w); 4039 clear_pending (EV_A_ (W)w);
3995 if (expect_false (!ev_is_active (w))) 4040 if (expect_false (!ev_is_active (w)))
3996 return; 4041 return;
3997 4042
… …
4014 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
4015 4060
4016 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
4017} 4062}
4018 4063
4019void noinline 4064noinline
4065void
4020ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4021{ 4067{
4022 /* TODO: use adjustheap and recalculation */ 4068 /* TODO: use adjustheap and recalculation */
4023 ev_periodic_stop (EV_A_ w); 4069 ev_periodic_stop (EV_A_ w);
4024 ev_periodic_start (EV_A_ w); 4070 ev_periodic_start (EV_A_ w);
4025} 4071}
… …
4029# define SA_RESTART 0 4075# define SA_RESTART 0
4030#endif 4076#endif
4031 4077
4032#if EV_SIGNAL_ENABLE 4078#if EV_SIGNAL_ENABLE
4033 4079
4034void noinline 4080noinline
4081void
4035ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4036{ 4083{
4037 if (expect_false (ev_is_active (w))) 4084 if (expect_false (ev_is_active (w)))
4038 return; 4085 return;
4039 4086
4040 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
4111 } 4158 }
4112 4159
4113 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
4114} 4161}
4115 4162
4116void noinline 4163noinline
4164void
4117ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4118{ 4166{
4119 clear_pending (EV_A_ (W)w); 4167 clear_pending (EV_A_ (W)w);
4120 if (expect_false (!ev_is_active (w))) 4168 if (expect_false (!ev_is_active (w)))
4121 return; 4169 return;
4122 4170
… …
4153#endif 4201#endif
4154 4202
4155#if EV_CHILD_ENABLE 4203#if EV_CHILD_ENABLE
4156 4204
4157void 4205void
4158ev_child_start (EV_P_ ev_child *w) EV_THROW 4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4159{ 4207{
4160#if EV_MULTIPLICITY 4208#if EV_MULTIPLICITY
4161 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4162#endif 4210#endif
4163 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
… …
4170 4218
4171 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
4172} 4220}
4173 4221
4174void 4222void
4175ev_child_stop (EV_P_ ev_child *w) EV_THROW 4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4176{ 4224{
4177 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
4178 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
4179 return; 4227 return;
4180 4228
… …
4197 4245
4198#define DEF_STAT_INTERVAL 5.0074891 4246#define DEF_STAT_INTERVAL 5.0074891
4199#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4200#define MIN_STAT_INTERVAL 0.1074891 4248#define MIN_STAT_INTERVAL 0.1074891
4201 4249
4202static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4203 4251
4204#if EV_USE_INOTIFY 4252#if EV_USE_INOTIFY
4205 4253
4206/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4207# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4208 4256
4209static void noinline 4257noinline
4258static void
4210infy_add (EV_P_ ev_stat *w) 4259infy_add (EV_P_ ev_stat *w)
4211{ 4260{
4212 w->wd = inotify_add_watch (fs_fd, w->path, 4261 w->wd = inotify_add_watch (fs_fd, w->path,
4213 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4214 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4263 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4278 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4327 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4279 ev_timer_again (EV_A_ &w->timer); 4328 ev_timer_again (EV_A_ &w->timer);
4280 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4329 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4281} 4330}
4282 4331
4283static void noinline 4332noinline
4333static void
4284infy_del (EV_P_ ev_stat *w) 4334infy_del (EV_P_ ev_stat *w)
4285{ 4335{
4286 int slot; 4336 int slot;
4287 int wd = w->wd; 4337 int wd = w->wd;
4288 4338
… …
4295 4345
4296 /* remove this watcher, if others are watching it, they will rearm */ 4346 /* remove this watcher, if others are watching it, they will rearm */
4297 inotify_rm_watch (fs_fd, wd); 4347 inotify_rm_watch (fs_fd, wd);
4298} 4348}
4299 4349
4300static void noinline 4350noinline
4351static void
4301infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4302{ 4353{
4303 if (slot < 0) 4354 if (slot < 0)
4304 /* overflow, need to check for all hash slots */ 4355 /* overflow, need to check for all hash slots */
4305 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4356 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4341 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4392 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4342 ofs += sizeof (struct inotify_event) + ev->len; 4393 ofs += sizeof (struct inotify_event) + ev->len;
4343 } 4394 }
4344} 4395}
4345 4396
4346inline_size void ecb_cold 4397inline_size ecb_cold
4398void
4347ev_check_2625 (EV_P) 4399ev_check_2625 (EV_P)
4348{ 4400{
4349 /* kernels < 2.6.25 are borked 4401 /* kernels < 2.6.25 are borked
4350 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4402 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4351 */ 4403 */
… …
4441#else 4493#else
4442# define EV_LSTAT(p,b) lstat (p, b) 4494# define EV_LSTAT(p,b) lstat (p, b)
4443#endif 4495#endif
4444 4496
4445void 4497void
4446ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4498ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4447{ 4499{
4448 if (lstat (w->path, &w->attr) < 0) 4500 if (lstat (w->path, &w->attr) < 0)
4449 w->attr.st_nlink = 0; 4501 w->attr.st_nlink = 0;
4450 else if (!w->attr.st_nlink) 4502 else if (!w->attr.st_nlink)
4451 w->attr.st_nlink = 1; 4503 w->attr.st_nlink = 1;
4452} 4504}
4453 4505
4454static void noinline 4506noinline
4507static void
4455stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4508stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4456{ 4509{
4457 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4458 4511
4459 ev_statdata prev = w->attr; 4512 ev_statdata prev = w->attr;
… …
4490 ev_feed_event (EV_A_ w, EV_STAT); 4543 ev_feed_event (EV_A_ w, EV_STAT);
4491 } 4544 }
4492} 4545}
4493 4546
4494void 4547void
4495ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4496{ 4549{
4497 if (expect_false (ev_is_active (w))) 4550 if (expect_false (ev_is_active (w)))
4498 return; 4551 return;
4499 4552
4500 ev_stat_stat (EV_A_ w); 4553 ev_stat_stat (EV_A_ w);
… …
4521 4574
4522 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4523} 4576}
4524 4577
4525void 4578void
4526ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4527{ 4580{
4528 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4529 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4530 return; 4583 return;
4531 4584
… …
4547} 4600}
4548#endif 4601#endif
4549 4602
4550#if EV_IDLE_ENABLE 4603#if EV_IDLE_ENABLE
4551void 4604void
4552ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4553{ 4606{
4554 if (expect_false (ev_is_active (w))) 4607 if (expect_false (ev_is_active (w)))
4555 return; 4608 return;
4556 4609
4557 pri_adjust (EV_A_ (W)w); 4610 pri_adjust (EV_A_ (W)w);
… …
4570 4623
4571 EV_FREQUENT_CHECK; 4624 EV_FREQUENT_CHECK;
4572} 4625}
4573 4626
4574void 4627void
4575ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4576{ 4629{
4577 clear_pending (EV_A_ (W)w); 4630 clear_pending (EV_A_ (W)w);
4578 if (expect_false (!ev_is_active (w))) 4631 if (expect_false (!ev_is_active (w)))
4579 return; 4632 return;
4580 4633
… …
4594} 4647}
4595#endif 4648#endif
4596 4649
4597#if EV_PREPARE_ENABLE 4650#if EV_PREPARE_ENABLE
4598void 4651void
4599ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4600{ 4653{
4601 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4602 return; 4655 return;
4603 4656
4604 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4609 4662
4610 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
4611} 4664}
4612 4665
4613void 4666void
4614ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4615{ 4668{
4616 clear_pending (EV_A_ (W)w); 4669 clear_pending (EV_A_ (W)w);
4617 if (expect_false (!ev_is_active (w))) 4670 if (expect_false (!ev_is_active (w)))
4618 return; 4671 return;
4619 4672
… …
4632} 4685}
4633#endif 4686#endif
4634 4687
4635#if EV_CHECK_ENABLE 4688#if EV_CHECK_ENABLE
4636void 4689void
4637ev_check_start (EV_P_ ev_check *w) EV_THROW 4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4638{ 4691{
4639 if (expect_false (ev_is_active (w))) 4692 if (expect_false (ev_is_active (w)))
4640 return; 4693 return;
4641 4694
4642 EV_FREQUENT_CHECK; 4695 EV_FREQUENT_CHECK;
… …
4647 4700
4648 EV_FREQUENT_CHECK; 4701 EV_FREQUENT_CHECK;
4649} 4702}
4650 4703
4651void 4704void
4652ev_check_stop (EV_P_ ev_check *w) EV_THROW 4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4653{ 4706{
4654 clear_pending (EV_A_ (W)w); 4707 clear_pending (EV_A_ (W)w);
4655 if (expect_false (!ev_is_active (w))) 4708 if (expect_false (!ev_is_active (w)))
4656 return; 4709 return;
4657 4710
… …
4669 EV_FREQUENT_CHECK; 4722 EV_FREQUENT_CHECK;
4670} 4723}
4671#endif 4724#endif
4672 4725
4673#if EV_EMBED_ENABLE 4726#if EV_EMBED_ENABLE
4674void noinline 4727noinline
4728void
4675ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4676{ 4730{
4677 ev_run (w->other, EVRUN_NOWAIT); 4731 ev_run (w->other, EVRUN_NOWAIT);
4678} 4732}
4679 4733
4680static void 4734static void
… …
4728 ev_idle_stop (EV_A_ idle); 4782 ev_idle_stop (EV_A_ idle);
4729} 4783}
4730#endif 4784#endif
4731 4785
4732void 4786void
4733ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4734{ 4788{
4735 if (expect_false (ev_is_active (w))) 4789 if (expect_false (ev_is_active (w)))
4736 return; 4790 return;
4737 4791
4738 { 4792 {
… …
4759 4813
4760 EV_FREQUENT_CHECK; 4814 EV_FREQUENT_CHECK;
4761} 4815}
4762 4816
4763void 4817void
4764ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4765{ 4819{
4766 clear_pending (EV_A_ (W)w); 4820 clear_pending (EV_A_ (W)w);
4767 if (expect_false (!ev_is_active (w))) 4821 if (expect_false (!ev_is_active (w)))
4768 return; 4822 return;
4769 4823
… …
4779} 4833}
4780#endif 4834#endif
4781 4835
4782#if EV_FORK_ENABLE 4836#if EV_FORK_ENABLE
4783void 4837void
4784ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4785{ 4839{
4786 if (expect_false (ev_is_active (w))) 4840 if (expect_false (ev_is_active (w)))
4787 return; 4841 return;
4788 4842
4789 EV_FREQUENT_CHECK; 4843 EV_FREQUENT_CHECK;
… …
4794 4848
4795 EV_FREQUENT_CHECK; 4849 EV_FREQUENT_CHECK;
4796} 4850}
4797 4851
4798void 4852void
4799ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4800{ 4854{
4801 clear_pending (EV_A_ (W)w); 4855 clear_pending (EV_A_ (W)w);
4802 if (expect_false (!ev_is_active (w))) 4856 if (expect_false (!ev_is_active (w)))
4803 return; 4857 return;
4804 4858
… …
4817} 4871}
4818#endif 4872#endif
4819 4873
4820#if EV_CLEANUP_ENABLE 4874#if EV_CLEANUP_ENABLE
4821void 4875void
4822ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4823{ 4877{
4824 if (expect_false (ev_is_active (w))) 4878 if (expect_false (ev_is_active (w)))
4825 return; 4879 return;
4826 4880
4827 EV_FREQUENT_CHECK; 4881 EV_FREQUENT_CHECK;
… …
4834 ev_unref (EV_A); 4888 ev_unref (EV_A);
4835 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4836} 4890}
4837 4891
4838void 4892void
4839ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4840{ 4894{
4841 clear_pending (EV_A_ (W)w); 4895 clear_pending (EV_A_ (W)w);
4842 if (expect_false (!ev_is_active (w))) 4896 if (expect_false (!ev_is_active (w)))
4843 return; 4897 return;
4844 4898
… …
4858} 4912}
4859#endif 4913#endif
4860 4914
4861#if EV_ASYNC_ENABLE 4915#if EV_ASYNC_ENABLE
4862void 4916void
4863ev_async_start (EV_P_ ev_async *w) EV_THROW 4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4864{ 4918{
4865 if (expect_false (ev_is_active (w))) 4919 if (expect_false (ev_is_active (w)))
4866 return; 4920 return;
4867 4921
4868 w->sent = 0; 4922 w->sent = 0;
… …
4877 4931
4878 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4879} 4933}
4880 4934
4881void 4935void
4882ev_async_stop (EV_P_ ev_async *w) EV_THROW 4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4883{ 4937{
4884 clear_pending (EV_A_ (W)w); 4938 clear_pending (EV_A_ (W)w);
4885 if (expect_false (!ev_is_active (w))) 4939 if (expect_false (!ev_is_active (w)))
4886 return; 4940 return;
4887 4941
… …
4898 4952
4899 EV_FREQUENT_CHECK; 4953 EV_FREQUENT_CHECK;
4900} 4954}
4901 4955
4902void 4956void
4903ev_async_send (EV_P_ ev_async *w) EV_THROW 4957ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4904{ 4958{
4905 w->sent = 1; 4959 w->sent = 1;
4906 evpipe_write (EV_A_ &async_pending); 4960 evpipe_write (EV_A_ &async_pending);
4907} 4961}
4908#endif 4962#endif
… …
4945 4999
4946 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5000 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4947} 5001}
4948 5002
4949void 5003void
4950ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5004ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4951{ 5005{
4952 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5006 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4953 5007
4954 if (expect_false (!once)) 5008 if (expect_false (!once))
4955 { 5009 {
… …
4976} 5030}
4977 5031
4978/*****************************************************************************/ 5032/*****************************************************************************/
4979 5033
4980#if EV_WALK_ENABLE 5034#if EV_WALK_ENABLE
4981void ecb_cold 5035ecb_cold
5036void
4982ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5037ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4983{ 5038{
4984 int i, j; 5039 int i, j;
4985 ev_watcher_list *wl, *wn; 5040 ev_watcher_list *wl, *wn;
4986 5041
4987 if (types & (EV_IO | EV_EMBED)) 5042 if (types & (EV_IO | EV_EMBED))

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