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

Comparing libev/ev.c (file contents):
Revision 1.345 by sf-exg, Sat Jul 31 22:33:26 2010 UTC vs.
Revision 1.364 by root, Sun Oct 24 21:51:03 2010 UTC

… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
… …
182# include EV_H 178# include EV_H
183#else 179#else
184# include "ev.h" 180# include "ev.h"
185#endif 181#endif
186 182
183EV_CPP(extern "C" {)
184
187#ifndef _WIN32 185#ifndef _WIN32
188# include <sys/time.h> 186# include <sys/time.h>
189# include <sys/wait.h> 187# include <sys/wait.h>
190# include <unistd.h> 188# include <unistd.h>
191#else 189#else
… …
384# include <sys/select.h> 382# include <sys/select.h>
385# endif 383# endif
386#endif 384#endif
387 385
388#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
389# include <sys/utsname.h>
390# include <sys/statfs.h> 387# include <sys/statfs.h>
391# include <sys/inotify.h> 388# include <sys/inotify.h>
392/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
393# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
394# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
411# define EFD_CLOEXEC O_CLOEXEC 408# define EFD_CLOEXEC O_CLOEXEC
412# else 409# else
413# define EFD_CLOEXEC 02000000 410# define EFD_CLOEXEC 02000000
414# endif 411# endif
415# endif 412# endif
416# ifdef __cplusplus
417extern "C" {
418# endif
419int (eventfd) (unsigned int initval, int flags); 413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
420# ifdef __cplusplus
421}
422# endif
423#endif 414#endif
424 415
425#if EV_USE_SIGNALFD 416#if EV_USE_SIGNALFD
426/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
427# include <stdint.h> 418# include <stdint.h>
… …
433# define SFD_CLOEXEC O_CLOEXEC 424# define SFD_CLOEXEC O_CLOEXEC
434# else 425# else
435# define SFD_CLOEXEC 02000000 426# define SFD_CLOEXEC 02000000
436# endif 427# endif
437# endif 428# endif
438# ifdef __cplusplus
439extern "C" {
440# endif
441int signalfd (int fd, const sigset_t *mask, int flags); 429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
442 430
443struct signalfd_siginfo 431struct signalfd_siginfo
444{ 432{
445 uint32_t ssi_signo; 433 uint32_t ssi_signo;
446 char pad[128 - sizeof (uint32_t)]; 434 char pad[128 - sizeof (uint32_t)];
447}; 435};
448# ifdef __cplusplus
449}
450# endif 436#endif
451#endif
452
453 437
454/**/ 438/**/
455 439
456#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
… …
470#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
471 455
472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
474 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
461
475#if __GNUC__ >= 4 462#if __GNUC__ >= 4
476# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
477# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
478#else 465#else
479# define expect(expr,value) (expr) 466# define expect(expr,value) (expr)
… …
535# include "ev_win32.c" 522# include "ev_win32.c"
536#endif 523#endif
537 524
538/*****************************************************************************/ 525/*****************************************************************************/
539 526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
540#if EV_AVOID_STDIO 569#if EV_AVOID_STDIO
541static void noinline 570static void noinline
542ev_printerr (const char *msg) 571ev_printerr (const char *msg)
543{ 572{
544 write (STDERR_FILENO, msg, strlen (msg)); 573 write (STDERR_FILENO, msg, strlen (msg));
… …
639 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 668 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
640 unsigned char unused; 669 unsigned char unused;
641#if EV_USE_EPOLL 670#if EV_USE_EPOLL
642 unsigned int egen; /* generation counter to counter epoll bugs */ 671 unsigned int egen; /* generation counter to counter epoll bugs */
643#endif 672#endif
644#if EV_SELECT_IS_WINSOCKET 673#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
645 SOCKET handle; 674 SOCKET handle;
675#endif
676#if EV_USE_IOCP
677 OVERLAPPED or, ow;
646#endif 678#endif
647} ANFD; 679} ANFD;
648 680
649/* stores the pending event set for a given watcher */ 681/* stores the pending event set for a given watcher */
650typedef struct 682typedef struct
… …
715# define EV_RELEASE_CB (void)0 747# define EV_RELEASE_CB (void)0
716# define EV_ACQUIRE_CB (void)0 748# define EV_ACQUIRE_CB (void)0
717# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 749# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
718#endif 750#endif
719 751
720#define EVUNLOOP_RECURSE 0x80 752#define EVBREAK_RECURSE 0x80
721 753
722/*****************************************************************************/ 754/*****************************************************************************/
723 755
724#ifndef EV_HAVE_EV_TIME 756#ifndef EV_HAVE_EV_TIME
725ev_tstamp 757ev_tstamp
… …
769 if (delay > 0.) 801 if (delay > 0.)
770 { 802 {
771#if EV_USE_NANOSLEEP 803#if EV_USE_NANOSLEEP
772 struct timespec ts; 804 struct timespec ts;
773 805
774 ts.tv_sec = (time_t)delay; 806 EV_TS_SET (ts, delay);
775 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
776
777 nanosleep (&ts, 0); 807 nanosleep (&ts, 0);
778#elif defined(_WIN32) 808#elif defined(_WIN32)
779 Sleep ((unsigned long)(delay * 1e3)); 809 Sleep ((unsigned long)(delay * 1e3));
780#else 810#else
781 struct timeval tv; 811 struct timeval tv;
782 812
783 tv.tv_sec = (time_t)delay;
784 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
785
786 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 813 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
787 /* something not guaranteed by newer posix versions, but guaranteed */ 814 /* something not guaranteed by newer posix versions, but guaranteed */
788 /* by older ones */ 815 /* by older ones */
816 EV_TV_SET (tv, delay);
789 select (0, 0, 0, 0, &tv); 817 select (0, 0, 0, 0, &tv);
790#endif 818#endif
791 } 819 }
792} 820}
793 821
… …
945 { 973 {
946 int fd = fdchanges [i]; 974 int fd = fdchanges [i];
947 ANFD *anfd = anfds + fd; 975 ANFD *anfd = anfds + fd;
948 ev_io *w; 976 ev_io *w;
949 977
950 unsigned char events = 0; 978 unsigned char o_events = anfd->events;
979 unsigned char o_reify = anfd->reify;
951 980
952 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 981 anfd->reify = 0;
953 events |= (unsigned char)w->events;
954 982
955#if EV_SELECT_IS_WINSOCKET 983#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
956 if (events) 984 if (o_reify & EV__IOFDSET)
957 { 985 {
958 unsigned long arg; 986 unsigned long arg;
959 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 987 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
960 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 988 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
989 printf ("oi %d %x\n", fd, anfd->handle);//D
961 } 990 }
962#endif 991#endif
963 992
993 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
964 { 994 {
965 unsigned char o_events = anfd->events;
966 unsigned char o_reify = anfd->reify;
967
968 anfd->reify = 0;
969 anfd->events = events; 995 anfd->events = 0;
970 996
971 if (o_events != events || o_reify & EV__IOFDSET) 997 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
998 anfd->events |= (unsigned char)w->events;
999
1000 if (o_events != anfd->events)
1001 o_reify = EV__IOFDSET; /* actually |= */
1002 }
1003
1004 if (o_reify & EV__IOFDSET)
972 backend_modify (EV_A_ fd, o_events, events); 1005 backend_modify (EV_A_ fd, o_events, anfd->events);
973 }
974 } 1006 }
975 1007
976 fdchangecnt = 0; 1008 fdchangecnt = 0;
977} 1009}
978 1010
… …
1281 uint64_t counter = 1; 1313 uint64_t counter = 1;
1282 write (evfd, &counter, sizeof (uint64_t)); 1314 write (evfd, &counter, sizeof (uint64_t));
1283 } 1315 }
1284 else 1316 else
1285#endif 1317#endif
1318 /* win32 people keep sending patches that change this write() to send() */
1319 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1320 /* so when you think this write should be a send instead, please find out */
1321 /* where your send() is from - it's definitely not the microsoft send, and */
1322 /* tell me. thank you. */
1286 write (evpipe [1], &dummy, 1); 1323 write (evpipe [1], &dummy, 1);
1287 1324
1288 errno = old_errno; 1325 errno = old_errno;
1289 } 1326 }
1290} 1327}
… …
1304 } 1341 }
1305 else 1342 else
1306#endif 1343#endif
1307 { 1344 {
1308 char dummy; 1345 char dummy;
1346 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1309 read (evpipe [0], &dummy, 1); 1347 read (evpipe [0], &dummy, 1);
1310 } 1348 }
1311 1349
1312 if (sig_pending) 1350 if (sig_pending)
1313 { 1351 {
… …
1455 1493
1456#endif 1494#endif
1457 1495
1458/*****************************************************************************/ 1496/*****************************************************************************/
1459 1497
1498#if EV_USE_IOCP
1499# include "ev_iocp.c"
1500#endif
1460#if EV_USE_PORT 1501#if EV_USE_PORT
1461# include "ev_port.c" 1502# include "ev_port.c"
1462#endif 1503#endif
1463#if EV_USE_KQUEUE 1504#if EV_USE_KQUEUE
1464# include "ev_kqueue.c" 1505# include "ev_kqueue.c"
… …
1537ev_embeddable_backends (void) 1578ev_embeddable_backends (void)
1538{ 1579{
1539 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1580 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1540 1581
1541 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1582 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1542 /* please fix it and tell me how to detect the fix */ 1583 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1543 flags &= ~EVBACKEND_EPOLL; 1584 flags &= ~EVBACKEND_EPOLL;
1544 1585
1545 return flags; 1586 return flags;
1546} 1587}
1547 1588
1548unsigned int 1589unsigned int
… …
1661#endif 1702#endif
1662 1703
1663 if (!(flags & 0x0000ffffU)) 1704 if (!(flags & 0x0000ffffU))
1664 flags |= ev_recommended_backends (); 1705 flags |= ev_recommended_backends ();
1665 1706
1707#if EV_USE_IOCP
1708 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1709#endif
1666#if EV_USE_PORT 1710#if EV_USE_PORT
1667 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1711 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1668#endif 1712#endif
1669#if EV_USE_KQUEUE 1713#if EV_USE_KQUEUE
1670 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1714 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1687#endif 1731#endif
1688 } 1732 }
1689} 1733}
1690 1734
1691/* free up a loop structure */ 1735/* free up a loop structure */
1692static void noinline 1736void
1693loop_destroy (EV_P) 1737ev_loop_destroy (EV_P)
1694{ 1738{
1695 int i; 1739 int i;
1740
1741#if EV_MULTIPLICITY
1742 /* mimic free (0) */
1743 if (!EV_A)
1744 return;
1745#endif
1746
1747#if EV_CLEANUP_ENABLE
1748 /* queue cleanup watchers (and execute them) */
1749 if (expect_false (cleanupcnt))
1750 {
1751 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1752 EV_INVOKE_PENDING;
1753 }
1754#endif
1755
1756#if EV_CHILD_ENABLE
1757 if (ev_is_active (&childev))
1758 {
1759 ev_ref (EV_A); /* child watcher */
1760 ev_signal_stop (EV_A_ &childev);
1761 }
1762#endif
1696 1763
1697 if (ev_is_active (&pipe_w)) 1764 if (ev_is_active (&pipe_w))
1698 { 1765 {
1699 /*ev_ref (EV_A);*/ 1766 /*ev_ref (EV_A);*/
1700 /*ev_io_stop (EV_A_ &pipe_w);*/ 1767 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1722#endif 1789#endif
1723 1790
1724 if (backend_fd >= 0) 1791 if (backend_fd >= 0)
1725 close (backend_fd); 1792 close (backend_fd);
1726 1793
1794#if EV_USE_IOCP
1795 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1796#endif
1727#if EV_USE_PORT 1797#if EV_USE_PORT
1728 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1798 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1729#endif 1799#endif
1730#if EV_USE_KQUEUE 1800#if EV_USE_KQUEUE
1731 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1801 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1758 array_free (periodic, EMPTY); 1828 array_free (periodic, EMPTY);
1759#endif 1829#endif
1760#if EV_FORK_ENABLE 1830#if EV_FORK_ENABLE
1761 array_free (fork, EMPTY); 1831 array_free (fork, EMPTY);
1762#endif 1832#endif
1833#if EV_CLEANUP_ENABLE
1834 array_free (cleanup, EMPTY);
1835#endif
1763 array_free (prepare, EMPTY); 1836 array_free (prepare, EMPTY);
1764 array_free (check, EMPTY); 1837 array_free (check, EMPTY);
1765#if EV_ASYNC_ENABLE 1838#if EV_ASYNC_ENABLE
1766 array_free (async, EMPTY); 1839 array_free (async, EMPTY);
1767#endif 1840#endif
1768 1841
1769 backend = 0; 1842 backend = 0;
1843
1844#if EV_MULTIPLICITY
1845 if (ev_is_default_loop (EV_A))
1846#endif
1847 ev_default_loop_ptr = 0;
1848#if EV_MULTIPLICITY
1849 else
1850 ev_free (EV_A);
1851#endif
1770} 1852}
1771 1853
1772#if EV_USE_INOTIFY 1854#if EV_USE_INOTIFY
1773inline_size void infy_fork (EV_P); 1855inline_size void infy_fork (EV_P);
1774#endif 1856#endif
… …
1833 loop_init (EV_A_ flags); 1915 loop_init (EV_A_ flags);
1834 1916
1835 if (ev_backend (EV_A)) 1917 if (ev_backend (EV_A))
1836 return EV_A; 1918 return EV_A;
1837 1919
1920 ev_free (EV_A);
1838 return 0; 1921 return 0;
1839} 1922}
1840 1923
1841void
1842ev_loop_destroy (EV_P)
1843{
1844 loop_destroy (EV_A);
1845 ev_free (loop);
1846}
1847
1848void
1849ev_loop_fork (EV_P)
1850{
1851 postfork = 1; /* must be in line with ev_default_fork */
1852}
1853#endif /* multiplicity */ 1924#endif /* multiplicity */
1854 1925
1855#if EV_VERIFY 1926#if EV_VERIFY
1856static void noinline 1927static void noinline
1857verify_watcher (EV_P_ W w) 1928verify_watcher (EV_P_ W w)
… …
1932#if EV_FORK_ENABLE 2003#if EV_FORK_ENABLE
1933 assert (forkmax >= forkcnt); 2004 assert (forkmax >= forkcnt);
1934 array_verify (EV_A_ (W *)forks, forkcnt); 2005 array_verify (EV_A_ (W *)forks, forkcnt);
1935#endif 2006#endif
1936 2007
2008#if EV_CLEANUP_ENABLE
2009 assert (cleanupmax >= cleanupcnt);
2010 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2011#endif
2012
1937#if EV_ASYNC_ENABLE 2013#if EV_ASYNC_ENABLE
1938 assert (asyncmax >= asynccnt); 2014 assert (asyncmax >= asynccnt);
1939 array_verify (EV_A_ (W *)asyncs, asynccnt); 2015 array_verify (EV_A_ (W *)asyncs, asynccnt);
1940#endif 2016#endif
1941 2017
… …
1959} 2035}
1960#endif 2036#endif
1961 2037
1962#if EV_MULTIPLICITY 2038#if EV_MULTIPLICITY
1963struct ev_loop * 2039struct ev_loop *
1964ev_default_loop_init (unsigned int flags)
1965#else 2040#else
1966int 2041int
2042#endif
1967ev_default_loop (unsigned int flags) 2043ev_default_loop (unsigned int flags)
1968#endif
1969{ 2044{
1970 if (!ev_default_loop_ptr) 2045 if (!ev_default_loop_ptr)
1971 { 2046 {
1972#if EV_MULTIPLICITY 2047#if EV_MULTIPLICITY
1973 EV_P = ev_default_loop_ptr = &default_loop_struct; 2048 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1992 2067
1993 return ev_default_loop_ptr; 2068 return ev_default_loop_ptr;
1994} 2069}
1995 2070
1996void 2071void
1997ev_default_destroy (void) 2072ev_loop_fork (EV_P)
1998{ 2073{
1999#if EV_MULTIPLICITY
2000 EV_P = ev_default_loop_ptr;
2001#endif
2002
2003 ev_default_loop_ptr = 0;
2004
2005#if EV_CHILD_ENABLE
2006 ev_ref (EV_A); /* child watcher */
2007 ev_signal_stop (EV_A_ &childev);
2008#endif
2009
2010 loop_destroy (EV_A);
2011}
2012
2013void
2014ev_default_fork (void)
2015{
2016#if EV_MULTIPLICITY
2017 EV_P = ev_default_loop_ptr;
2018#endif
2019
2020 postfork = 1; /* must be in line with ev_loop_fork */ 2074 postfork = 1; /* must be in line with ev_default_fork */
2021} 2075}
2022 2076
2023/*****************************************************************************/ 2077/*****************************************************************************/
2024 2078
2025void 2079void
… …
2285 mn_now = ev_rt_now; 2339 mn_now = ev_rt_now;
2286 } 2340 }
2287} 2341}
2288 2342
2289void 2343void
2290ev_loop (EV_P_ int flags) 2344ev_run (EV_P_ int flags)
2291{ 2345{
2292#if EV_FEATURE_API 2346#if EV_FEATURE_API
2293 ++loop_depth; 2347 ++loop_depth;
2294#endif 2348#endif
2295 2349
2296 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2350 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2297 2351
2298 loop_done = EVUNLOOP_CANCEL; 2352 loop_done = EVBREAK_CANCEL;
2299 2353
2300 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2354 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2301 2355
2302 do 2356 do
2303 { 2357 {
… …
2346 /* calculate blocking time */ 2400 /* calculate blocking time */
2347 { 2401 {
2348 ev_tstamp waittime = 0.; 2402 ev_tstamp waittime = 0.;
2349 ev_tstamp sleeptime = 0.; 2403 ev_tstamp sleeptime = 0.;
2350 2404
2405 /* remember old timestamp for io_blocktime calculation */
2406 ev_tstamp prev_mn_now = mn_now;
2407
2408 /* update time to cancel out callback processing overhead */
2409 time_update (EV_A_ 1e100);
2410
2351 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2411 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2352 { 2412 {
2353 /* remember old timestamp for io_blocktime calculation */
2354 ev_tstamp prev_mn_now = mn_now;
2355
2356 /* update time to cancel out callback processing overhead */
2357 time_update (EV_A_ 1e100);
2358
2359 waittime = MAX_BLOCKTIME; 2413 waittime = MAX_BLOCKTIME;
2360 2414
2361 if (timercnt) 2415 if (timercnt)
2362 { 2416 {
2363 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2417 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2393 } 2447 }
2394 2448
2395#if EV_FEATURE_API 2449#if EV_FEATURE_API
2396 ++loop_count; 2450 ++loop_count;
2397#endif 2451#endif
2398 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2452 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2399 backend_poll (EV_A_ waittime); 2453 backend_poll (EV_A_ waittime);
2400 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2454 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2401 2455
2402 /* update ev_rt_now, do magic */ 2456 /* update ev_rt_now, do magic */
2403 time_update (EV_A_ waittime + sleeptime); 2457 time_update (EV_A_ waittime + sleeptime);
2404 } 2458 }
2405 2459
… …
2423 EV_INVOKE_PENDING; 2477 EV_INVOKE_PENDING;
2424 } 2478 }
2425 while (expect_true ( 2479 while (expect_true (
2426 activecnt 2480 activecnt
2427 && !loop_done 2481 && !loop_done
2428 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2482 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2429 )); 2483 ));
2430 2484
2431 if (loop_done == EVUNLOOP_ONE) 2485 if (loop_done == EVBREAK_ONE)
2432 loop_done = EVUNLOOP_CANCEL; 2486 loop_done = EVBREAK_CANCEL;
2433 2487
2434#if EV_FEATURE_API 2488#if EV_FEATURE_API
2435 --loop_depth; 2489 --loop_depth;
2436#endif 2490#endif
2437} 2491}
2438 2492
2439void 2493void
2440ev_unloop (EV_P_ int how) 2494ev_break (EV_P_ int how)
2441{ 2495{
2442 loop_done = how; 2496 loop_done = how;
2443} 2497}
2444 2498
2445void 2499void
… …
2593 EV_FREQUENT_CHECK; 2647 EV_FREQUENT_CHECK;
2594 2648
2595 wlist_del (&anfds[w->fd].head, (WL)w); 2649 wlist_del (&anfds[w->fd].head, (WL)w);
2596 ev_stop (EV_A_ (W)w); 2650 ev_stop (EV_A_ (W)w);
2597 2651
2598 fd_change (EV_A_ w->fd, 1); 2652 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2599 2653
2600 EV_FREQUENT_CHECK; 2654 EV_FREQUENT_CHECK;
2601} 2655}
2602 2656
2603void noinline 2657void noinline
… …
3055 { 3109 {
3056 struct inotify_event *ev = (struct inotify_event *)(buf + ofs); 3110 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
3057 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3111 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3058 ofs += sizeof (struct inotify_event) + ev->len; 3112 ofs += sizeof (struct inotify_event) + ev->len;
3059 } 3113 }
3060}
3061
3062inline_size unsigned int
3063ev_linux_version (void)
3064{
3065 struct utsname buf;
3066 unsigned int v;
3067 int i;
3068 char *p = buf.release;
3069
3070 if (uname (&buf))
3071 return 0;
3072
3073 for (i = 3+1; --i; )
3074 {
3075 unsigned int c = 0;
3076
3077 for (;;)
3078 {
3079 if (*p >= '0' && *p <= '9')
3080 c = c * 10 + *p++ - '0';
3081 else
3082 {
3083 p += *p == '.';
3084 break;
3085 }
3086 }
3087
3088 v = (v << 8) | c;
3089 }
3090
3091 return v;
3092} 3114}
3093 3115
3094inline_size void 3116inline_size void
3095ev_check_2625 (EV_P) 3117ev_check_2625 (EV_P)
3096{ 3118{
… …
3420 3442
3421#if EV_EMBED_ENABLE 3443#if EV_EMBED_ENABLE
3422void noinline 3444void noinline
3423ev_embed_sweep (EV_P_ ev_embed *w) 3445ev_embed_sweep (EV_P_ ev_embed *w)
3424{ 3446{
3425 ev_loop (w->other, EVLOOP_NONBLOCK); 3447 ev_run (w->other, EVRUN_NOWAIT);
3426} 3448}
3427 3449
3428static void 3450static void
3429embed_io_cb (EV_P_ ev_io *io, int revents) 3451embed_io_cb (EV_P_ ev_io *io, int revents)
3430{ 3452{
3431 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3453 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3432 3454
3433 if (ev_cb (w)) 3455 if (ev_cb (w))
3434 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3456 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3435 else 3457 else
3436 ev_loop (w->other, EVLOOP_NONBLOCK); 3458 ev_run (w->other, EVRUN_NOWAIT);
3437} 3459}
3438 3460
3439static void 3461static void
3440embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3462embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3441{ 3463{
… …
3445 EV_P = w->other; 3467 EV_P = w->other;
3446 3468
3447 while (fdchangecnt) 3469 while (fdchangecnt)
3448 { 3470 {
3449 fd_reify (EV_A); 3471 fd_reify (EV_A);
3450 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3472 ev_run (EV_A_ EVRUN_NOWAIT);
3451 } 3473 }
3452 } 3474 }
3453} 3475}
3454 3476
3455static void 3477static void
… …
3461 3483
3462 { 3484 {
3463 EV_P = w->other; 3485 EV_P = w->other;
3464 3486
3465 ev_loop_fork (EV_A); 3487 ev_loop_fork (EV_A);
3466 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3488 ev_run (EV_A_ EVRUN_NOWAIT);
3467 } 3489 }
3468 3490
3469 ev_embed_start (EV_A_ w); 3491 ev_embed_start (EV_A_ w);
3470} 3492}
3471 3493
… …
3563 3585
3564 EV_FREQUENT_CHECK; 3586 EV_FREQUENT_CHECK;
3565} 3587}
3566#endif 3588#endif
3567 3589
3568#if EV_ASYNC_ENABLE 3590#if EV_CLEANUP_ENABLE
3569void 3591void
3570ev_async_start (EV_P_ ev_async *w) 3592ev_cleanup_start (EV_P_ ev_cleanup *w)
3571{ 3593{
3572 if (expect_false (ev_is_active (w))) 3594 if (expect_false (ev_is_active (w)))
3573 return; 3595 return;
3596
3597 EV_FREQUENT_CHECK;
3598
3599 ev_start (EV_A_ (W)w, ++cleanupcnt);
3600 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3601 cleanups [cleanupcnt - 1] = w;
3602
3603 /* cleanup watchers should never keep a refcount on the loop */
3604 ev_unref (EV_A);
3605 EV_FREQUENT_CHECK;
3606}
3607
3608void
3609ev_cleanup_stop (EV_P_ ev_cleanup *w)
3610{
3611 clear_pending (EV_A_ (W)w);
3612 if (expect_false (!ev_is_active (w)))
3613 return;
3614
3615 EV_FREQUENT_CHECK;
3616 ev_ref (EV_A);
3617
3618 {
3619 int active = ev_active (w);
3620
3621 cleanups [active - 1] = cleanups [--cleanupcnt];
3622 ev_active (cleanups [active - 1]) = active;
3623 }
3624
3625 ev_stop (EV_A_ (W)w);
3626
3627 EV_FREQUENT_CHECK;
3628}
3629#endif
3630
3631#if EV_ASYNC_ENABLE
3632void
3633ev_async_start (EV_P_ ev_async *w)
3634{
3635 if (expect_false (ev_is_active (w)))
3636 return;
3637
3638 w->sent = 0;
3574 3639
3575 evpipe_init (EV_A); 3640 evpipe_init (EV_A);
3576 3641
3577 EV_FREQUENT_CHECK; 3642 EV_FREQUENT_CHECK;
3578 3643
… …
3798 3863
3799#if EV_MULTIPLICITY 3864#if EV_MULTIPLICITY
3800 #include "ev_wrap.h" 3865 #include "ev_wrap.h"
3801#endif 3866#endif
3802 3867
3803#ifdef __cplusplus 3868EV_CPP(})
3804}
3805#endif
3806 3869

Diff Legend

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