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Comparing libev/ev.c (file contents):
Revision 1.249 by root, Wed May 21 23:30:52 2008 UTC vs.
Revision 1.265 by root, Thu Oct 23 04:56:49 2008 UTC

… …
126# define EV_USE_EVENTFD 1 126# define EV_USE_EVENTFD 1
127# else 127# else
128# define EV_USE_EVENTFD 0 128# define EV_USE_EVENTFD 0
129# endif 129# endif
130# endif 130# endif
131 131
132#endif 132#endif
133 133
134#include <math.h> 134#include <math.h>
135#include <stdlib.h> 135#include <stdlib.h>
136#include <fcntl.h> 136#include <fcntl.h>
… …
154#ifndef _WIN32 154#ifndef _WIN32
155# include <sys/time.h> 155# include <sys/time.h>
156# include <sys/wait.h> 156# include <sys/wait.h>
157# include <unistd.h> 157# include <unistd.h>
158#else 158#else
159# include <io.h>
159# define WIN32_LEAN_AND_MEAN 160# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 161# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 162# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 163# define EV_SELECT_IS_WINSOCKET 1
163# endif 164# endif
164#endif 165#endif
165 166
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 167/* this block tries to deduce configuration from header-defined symbols and defaults */
167 168
168#ifndef EV_USE_MONOTONIC 169#ifndef EV_USE_MONOTONIC
170# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171# define EV_USE_MONOTONIC 1
172# else
169# define EV_USE_MONOTONIC 0 173# define EV_USE_MONOTONIC 0
174# endif
170#endif 175#endif
171 176
172#ifndef EV_USE_REALTIME 177#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 178# define EV_USE_REALTIME 0
174#endif 179#endif
175 180
176#ifndef EV_USE_NANOSLEEP 181#ifndef EV_USE_NANOSLEEP
182# if _POSIX_C_SOURCE >= 199309L
183# define EV_USE_NANOSLEEP 1
184# else
177# define EV_USE_NANOSLEEP 0 185# define EV_USE_NANOSLEEP 0
186# endif
178#endif 187#endif
179 188
180#ifndef EV_USE_SELECT 189#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 190# define EV_USE_SELECT 1
182#endif 191#endif
… …
236# define EV_USE_EVENTFD 0 245# define EV_USE_EVENTFD 0
237# endif 246# endif
238#endif 247#endif
239 248
240#if 0 /* debugging */ 249#if 0 /* debugging */
241# define EV_VERIFY 1 250# define EV_VERIFY 3
242# define EV_USE_4HEAP 1 251# define EV_USE_4HEAP 1
243# define EV_HEAP_CACHE_AT 1 252# define EV_HEAP_CACHE_AT 1
253#endif
254
255#ifndef EV_VERIFY
256# define EV_VERIFY !EV_MINIMAL
244#endif 257#endif
245 258
246#ifndef EV_USE_4HEAP 259#ifndef EV_USE_4HEAP
247# define EV_USE_4HEAP !EV_MINIMAL 260# define EV_USE_4HEAP !EV_MINIMAL
248#endif 261#endif
… …
273# include <sys/select.h> 286# include <sys/select.h>
274# endif 287# endif
275#endif 288#endif
276 289
277#if EV_USE_INOTIFY 290#if EV_USE_INOTIFY
291# include <sys/utsname.h>
278# include <sys/inotify.h> 292# include <sys/inotify.h>
293/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
294# ifndef IN_DONT_FOLLOW
295# undef EV_USE_INOTIFY
296# define EV_USE_INOTIFY 0
297# endif
279#endif 298#endif
280 299
281#if EV_SELECT_IS_WINSOCKET 300#if EV_SELECT_IS_WINSOCKET
282# include <winsock.h> 301# include <winsock.h>
283#endif 302#endif
… …
294# endif 313# endif
295#endif 314#endif
296 315
297/**/ 316/**/
298 317
299/* EV_VERIFY: enable internal consistency checks
300 * undefined or zero: no verification done or available
301 * 1 or higher: ev_loop_verify function available
302 * 2 or higher: ev_loop_verify is called frequently
303 */
304#if EV_VERIFY >= 1 318#if EV_VERIFY >= 3
305# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 319# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
306#else 320#else
307# define EV_FREQUENT_CHECK do { } while (0) 321# define EV_FREQUENT_CHECK do { } while (0)
308#endif 322#endif
309 323
… …
435typedef struct 449typedef struct
436{ 450{
437 WL head; 451 WL head;
438 unsigned char events; 452 unsigned char events;
439 unsigned char reify; 453 unsigned char reify;
454 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
455 unsigned char unused; /* currently unused padding */
440#if EV_SELECT_IS_WINSOCKET 456#if EV_SELECT_IS_WINSOCKET
441 SOCKET handle; 457 SOCKET handle;
442#endif 458#endif
443} ANFD; 459} ANFD;
444 460
… …
557 struct timeval tv; 573 struct timeval tv;
558 574
559 tv.tv_sec = (time_t)delay; 575 tv.tv_sec = (time_t)delay;
560 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 576 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
561 577
578 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
579 /* somehting nto guaranteed by newer posix versions, but guaranteed */
580 /* by older ones */
562 select (0, 0, 0, 0, &tv); 581 select (0, 0, 0, 0, &tv);
563#endif 582#endif
564 } 583 }
565} 584}
566 585
… …
593array_realloc (int elem, void *base, int *cur, int cnt) 612array_realloc (int elem, void *base, int *cur, int cnt)
594{ 613{
595 *cur = array_nextsize (elem, *cur, cnt); 614 *cur = array_nextsize (elem, *cur, cnt);
596 return ev_realloc (base, elem * *cur); 615 return ev_realloc (base, elem * *cur);
597} 616}
617
618#define array_init_zero(base,count) \
619 memset ((void *)(base), 0, sizeof (*(base)) * (count))
598 620
599#define array_needsize(type,base,cur,cnt,init) \ 621#define array_needsize(type,base,cur,cnt,init) \
600 if (expect_false ((cnt) > (cur))) \ 622 if (expect_false ((cnt) > (cur))) \
601 { \ 623 { \
602 int ocur_ = (cur); \ 624 int ocur_ = (cur); \
… …
646 ev_feed_event (EV_A_ events [i], type); 668 ev_feed_event (EV_A_ events [i], type);
647} 669}
648 670
649/*****************************************************************************/ 671/*****************************************************************************/
650 672
651void inline_size
652anfds_init (ANFD *base, int count)
653{
654 while (count--)
655 {
656 base->head = 0;
657 base->events = EV_NONE;
658 base->reify = 0;
659
660 ++base;
661 }
662}
663
664void inline_speed 673void inline_speed
665fd_event (EV_P_ int fd, int revents) 674fd_event (EV_P_ int fd, int revents)
666{ 675{
667 ANFD *anfd = anfds + fd; 676 ANFD *anfd = anfds + fd;
668 ev_io *w; 677 ev_io *w;
… …
700 events |= (unsigned char)w->events; 709 events |= (unsigned char)w->events;
701 710
702#if EV_SELECT_IS_WINSOCKET 711#if EV_SELECT_IS_WINSOCKET
703 if (events) 712 if (events)
704 { 713 {
705 unsigned long argp; 714 unsigned long arg;
706 #ifdef EV_FD_TO_WIN32_HANDLE 715 #ifdef EV_FD_TO_WIN32_HANDLE
707 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 716 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
708 #else 717 #else
709 anfd->handle = _get_osfhandle (fd); 718 anfd->handle = _get_osfhandle (fd);
710 #endif 719 #endif
711 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 720 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
712 } 721 }
713#endif 722#endif
714 723
715 { 724 {
716 unsigned char o_events = anfd->events; 725 unsigned char o_events = anfd->events;
… …
769{ 778{
770 int fd; 779 int fd;
771 780
772 for (fd = 0; fd < anfdmax; ++fd) 781 for (fd = 0; fd < anfdmax; ++fd)
773 if (anfds [fd].events) 782 if (anfds [fd].events)
774 if (!fd_valid (fd) == -1 && errno == EBADF) 783 if (!fd_valid (fd) && errno == EBADF)
775 fd_kill (EV_A_ fd); 784 fd_kill (EV_A_ fd);
776} 785}
777 786
778/* called on ENOMEM in select/poll to kill some fds and retry */ 787/* called on ENOMEM in select/poll to kill some fds and retry */
779static void noinline 788static void noinline
… …
938/* rebuild the heap: this function is used only once and executed rarely */ 947/* rebuild the heap: this function is used only once and executed rarely */
939void inline_size 948void inline_size
940reheap (ANHE *heap, int N) 949reheap (ANHE *heap, int N)
941{ 950{
942 int i; 951 int i;
952
943 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 953 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
944 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ 954 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
945 for (i = 0; i < N; ++i) 955 for (i = 0; i < N; ++i)
946 upheap (heap, i + HEAP0); 956 upheap (heap, i + HEAP0);
947} 957}
948 958
949#if EV_VERIFY
950static void
951checkheap (ANHE *heap, int N)
952{
953 int i;
954
955 for (i = HEAP0; i < N + HEAP0; ++i)
956 {
957 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
958 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
959 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
960 }
961}
962#endif
963
964/*****************************************************************************/ 959/*****************************************************************************/
965 960
966typedef struct 961typedef struct
967{ 962{
968 WL head; 963 WL head;
… …
972static ANSIG *signals; 967static ANSIG *signals;
973static int signalmax; 968static int signalmax;
974 969
975static EV_ATOMIC_T gotsig; 970static EV_ATOMIC_T gotsig;
976 971
977void inline_size
978signals_init (ANSIG *base, int count)
979{
980 while (count--)
981 {
982 base->head = 0;
983 base->gotsig = 0;
984
985 ++base;
986 }
987}
988
989/*****************************************************************************/ 972/*****************************************************************************/
990 973
991void inline_speed 974void inline_speed
992fd_intern (int fd) 975fd_intern (int fd)
993{ 976{
994#ifdef _WIN32 977#ifdef _WIN32
995 int arg = 1; 978 unsigned long arg = 1;
996 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 979 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
997#else 980#else
998 fcntl (fd, F_SETFD, FD_CLOEXEC); 981 fcntl (fd, F_SETFD, FD_CLOEXEC);
999 fcntl (fd, F_SETFL, O_NONBLOCK); 982 fcntl (fd, F_SETFL, O_NONBLOCK);
1000#endif 983#endif
… …
1484 1467
1485 postfork = 0; 1468 postfork = 0;
1486} 1469}
1487 1470
1488#if EV_MULTIPLICITY 1471#if EV_MULTIPLICITY
1472
1489struct ev_loop * 1473struct ev_loop *
1490ev_loop_new (unsigned int flags) 1474ev_loop_new (unsigned int flags)
1491{ 1475{
1492 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1476 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1493 1477
… …
1513{ 1497{
1514 postfork = 1; /* must be in line with ev_default_fork */ 1498 postfork = 1; /* must be in line with ev_default_fork */
1515} 1499}
1516 1500
1517#if EV_VERIFY 1501#if EV_VERIFY
1518static void 1502static void noinline
1503verify_watcher (EV_P_ W w)
1504{
1505 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1506
1507 if (w->pending)
1508 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1509}
1510
1511static void noinline
1512verify_heap (EV_P_ ANHE *heap, int N)
1513{
1514 int i;
1515
1516 for (i = HEAP0; i < N + HEAP0; ++i)
1517 {
1518 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1519 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1520 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1521
1522 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1523 }
1524}
1525
1526static void noinline
1519array_check (W **ws, int cnt) 1527array_verify (EV_P_ W *ws, int cnt)
1520{ 1528{
1521 while (cnt--) 1529 while (cnt--)
1530 {
1522 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1531 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1532 verify_watcher (EV_A_ ws [cnt]);
1533 }
1523} 1534}
1535#endif
1524 1536
1525static void 1537void
1526ev_loop_verify (EV_P) 1538ev_loop_verify (EV_P)
1527{ 1539{
1540#if EV_VERIFY
1528 int i; 1541 int i;
1542 WL w;
1529 1543
1544 assert (activecnt >= -1);
1545
1546 assert (fdchangemax >= fdchangecnt);
1547 for (i = 0; i < fdchangecnt; ++i)
1548 assert (("negative fd in fdchanges", fdchanges [i] >= 0));
1549
1550 assert (anfdmax >= 0);
1551 for (i = 0; i < anfdmax; ++i)
1552 for (w = anfds [i].head; w; w = w->next)
1553 {
1554 verify_watcher (EV_A_ (W)w);
1555 assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
1556 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1557 }
1558
1559 assert (timermax >= timercnt);
1530 checkheap (timers, timercnt); 1560 verify_heap (EV_A_ timers, timercnt);
1561
1531#if EV_PERIODIC_ENABLE 1562#if EV_PERIODIC_ENABLE
1563 assert (periodicmax >= periodiccnt);
1532 checkheap (periodics, periodiccnt); 1564 verify_heap (EV_A_ periodics, periodiccnt);
1533#endif 1565#endif
1534 1566
1567 for (i = NUMPRI; i--; )
1568 {
1569 assert (pendingmax [i] >= pendingcnt [i]);
1535#if EV_IDLE_ENABLE 1570#if EV_IDLE_ENABLE
1536 for (i = NUMPRI; i--; ) 1571 assert (idleall >= 0);
1572 assert (idlemax [i] >= idlecnt [i]);
1537 array_check ((W **)idles [i], idlecnt [i]); 1573 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1538#endif 1574#endif
1575 }
1576
1539#if EV_FORK_ENABLE 1577#if EV_FORK_ENABLE
1578 assert (forkmax >= forkcnt);
1540 array_check ((W **)forks, forkcnt); 1579 array_verify (EV_A_ (W *)forks, forkcnt);
1541#endif 1580#endif
1542 array_check ((W **)prepares, preparecnt); 1581
1543 array_check ((W **)checks, checkcnt);
1544#if EV_ASYNC_ENABLE 1582#if EV_ASYNC_ENABLE
1583 assert (asyncmax >= asynccnt);
1545 array_check ((W **)asyncs, asynccnt); 1584 array_verify (EV_A_ (W *)asyncs, asynccnt);
1585#endif
1586
1587 assert (preparemax >= preparecnt);
1588 array_verify (EV_A_ (W *)prepares, preparecnt);
1589
1590 assert (checkmax >= checkcnt);
1591 array_verify (EV_A_ (W *)checks, checkcnt);
1592
1593# if 0
1594 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1595 for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1546#endif 1596# endif
1547}
1548#endif 1597#endif
1598}
1549 1599
1550#endif 1600#endif /* multiplicity */
1551 1601
1552#if EV_MULTIPLICITY 1602#if EV_MULTIPLICITY
1553struct ev_loop * 1603struct ev_loop *
1554ev_default_loop_init (unsigned int flags) 1604ev_default_loop_init (unsigned int flags)
1555#else 1605#else
… …
1620void inline_speed 1670void inline_speed
1621call_pending (EV_P) 1671call_pending (EV_P)
1622{ 1672{
1623 int pri; 1673 int pri;
1624 1674
1625 EV_FREQUENT_CHECK;
1626
1627 for (pri = NUMPRI; pri--; ) 1675 for (pri = NUMPRI; pri--; )
1628 while (pendingcnt [pri]) 1676 while (pendingcnt [pri])
1629 { 1677 {
1630 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1678 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1631 1679
… …
1633 { 1681 {
1634 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1682 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1635 1683
1636 p->w->pending = 0; 1684 p->w->pending = 0;
1637 EV_CB_INVOKE (p->w, p->events); 1685 EV_CB_INVOKE (p->w, p->events);
1686 EV_FREQUENT_CHECK;
1638 } 1687 }
1639 } 1688 }
1640
1641 EV_FREQUENT_CHECK;
1642} 1689}
1643 1690
1644#if EV_IDLE_ENABLE 1691#if EV_IDLE_ENABLE
1645void inline_size 1692void inline_size
1646idle_reify (EV_P) 1693idle_reify (EV_P)
… …
1698#if EV_PERIODIC_ENABLE 1745#if EV_PERIODIC_ENABLE
1699void inline_size 1746void inline_size
1700periodics_reify (EV_P) 1747periodics_reify (EV_P)
1701{ 1748{
1702 EV_FREQUENT_CHECK; 1749 EV_FREQUENT_CHECK;
1750
1703 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 1751 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704 { 1752 {
1705 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 1753 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1706 1754
1707 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1755 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
1713 1761
1714 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 1762 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1715 1763
1716 ANHE_at_cache (periodics [HEAP0]); 1764 ANHE_at_cache (periodics [HEAP0]);
1717 downheap (periodics, periodiccnt, HEAP0); 1765 downheap (periodics, periodiccnt, HEAP0);
1718 EV_FREQUENT_CHECK;
1719 } 1766 }
1720 else if (w->interval) 1767 else if (w->interval)
1721 { 1768 {
1722 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1769 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1723 /* if next trigger time is not sufficiently in the future, put it there */ 1770 /* if next trigger time is not sufficiently in the future, put it there */
… …
1848ev_unref (EV_P) 1895ev_unref (EV_P)
1849{ 1896{
1850 --activecnt; 1897 --activecnt;
1851} 1898}
1852 1899
1900void
1901ev_now_update (EV_P)
1902{
1903 time_update (EV_A_ 1e100);
1904}
1905
1853static int loop_done; 1906static int loop_done;
1854 1907
1855void 1908void
1856ev_loop (EV_P_ int flags) 1909ev_loop (EV_P_ int flags)
1857{ 1910{
… …
1859 1912
1860 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 1913 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1861 1914
1862 do 1915 do
1863 { 1916 {
1917#if EV_VERIFY >= 2
1918 ev_loop_verify (EV_A);
1919#endif
1920
1864#ifndef _WIN32 1921#ifndef _WIN32
1865 if (expect_false (curpid)) /* penalise the forking check even more */ 1922 if (expect_false (curpid)) /* penalise the forking check even more */
1866 if (expect_false (getpid () != curpid)) 1923 if (expect_false (getpid () != curpid))
1867 { 1924 {
1868 curpid = getpid (); 1925 curpid = getpid ();
… …
2062 2119
2063 if (expect_false (ev_is_active (w))) 2120 if (expect_false (ev_is_active (w)))
2064 return; 2121 return;
2065 2122
2066 assert (("ev_io_start called with negative fd", fd >= 0)); 2123 assert (("ev_io_start called with negative fd", fd >= 0));
2124 assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE))));
2067 2125
2068 EV_FREQUENT_CHECK; 2126 EV_FREQUENT_CHECK;
2069 2127
2070 ev_start (EV_A_ (W)w, 1); 2128 ev_start (EV_A_ (W)w, 1);
2071 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2129 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2072 wlist_add (&anfds[fd].head, (WL)w); 2130 wlist_add (&anfds[fd].head, (WL)w);
2073 2131
2074 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2132 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
2075 w->events &= ~EV_IOFDSET; 2133 w->events &= ~EV_IOFDSET;
2076 2134
… …
2268 sigset_t full, prev; 2326 sigset_t full, prev;
2269 sigfillset (&full); 2327 sigfillset (&full);
2270 sigprocmask (SIG_SETMASK, &full, &prev); 2328 sigprocmask (SIG_SETMASK, &full, &prev);
2271#endif 2329#endif
2272 2330
2273 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2331 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2274 2332
2275#ifndef _WIN32 2333#ifndef _WIN32
2276 sigprocmask (SIG_SETMASK, &prev, 0); 2334 sigprocmask (SIG_SETMASK, &prev, 0);
2277#endif 2335#endif
2278 } 2336 }
… …
2420 2478
2421static void noinline 2479static void noinline
2422infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2480infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2423{ 2481{
2424 if (slot < 0) 2482 if (slot < 0)
2425 /* overflow, need to check for all hahs slots */ 2483 /* overflow, need to check for all hash slots */
2426 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2484 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2427 infy_wd (EV_A_ slot, wd, ev); 2485 infy_wd (EV_A_ slot, wd, ev);
2428 else 2486 else
2429 { 2487 {
2430 WL w_; 2488 WL w_;
… …
2464infy_init (EV_P) 2522infy_init (EV_P)
2465{ 2523{
2466 if (fs_fd != -2) 2524 if (fs_fd != -2)
2467 return; 2525 return;
2468 2526
2527 /* kernels < 2.6.25 are borked
2528 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2529 */
2530 {
2531 struct utsname buf;
2532 int major, minor, micro;
2533
2534 fs_fd = -1;
2535
2536 if (uname (&buf))
2537 return;
2538
2539 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2540 return;
2541
2542 if (major < 2
2543 || (major == 2 && minor < 6)
2544 || (major == 2 && minor == 6 && micro < 25))
2545 return;
2546 }
2547
2469 fs_fd = inotify_init (); 2548 fs_fd = inotify_init ();
2470 2549
2471 if (fs_fd >= 0) 2550 if (fs_fd >= 0)
2472 { 2551 {
2473 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 2552 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
… …
2502 if (fs_fd >= 0) 2581 if (fs_fd >= 0)
2503 infy_add (EV_A_ w); /* re-add, no matter what */ 2582 infy_add (EV_A_ w); /* re-add, no matter what */
2504 else 2583 else
2505 ev_timer_start (EV_A_ &w->timer); 2584 ev_timer_start (EV_A_ &w->timer);
2506 } 2585 }
2507
2508 } 2586 }
2509} 2587}
2510 2588
2589#endif
2590
2591#ifdef _WIN32
2592# define EV_LSTAT(p,b) _stati64 (p, b)
2593#else
2594# define EV_LSTAT(p,b) lstat (p, b)
2511#endif 2595#endif
2512 2596
2513void 2597void
2514ev_stat_stat (EV_P_ ev_stat *w) 2598ev_stat_stat (EV_P_ ev_stat *w)
2515{ 2599{
… …
2542 || w->prev.st_atime != w->attr.st_atime 2626 || w->prev.st_atime != w->attr.st_atime
2543 || w->prev.st_mtime != w->attr.st_mtime 2627 || w->prev.st_mtime != w->attr.st_mtime
2544 || w->prev.st_ctime != w->attr.st_ctime 2628 || w->prev.st_ctime != w->attr.st_ctime
2545 ) { 2629 ) {
2546 #if EV_USE_INOTIFY 2630 #if EV_USE_INOTIFY
2631 if (fs_fd >= 0)
2632 {
2547 infy_del (EV_A_ w); 2633 infy_del (EV_A_ w);
2548 infy_add (EV_A_ w); 2634 infy_add (EV_A_ w);
2549 ev_stat_stat (EV_A_ w); /* avoid race... */ 2635 ev_stat_stat (EV_A_ w); /* avoid race... */
2636 }
2550 #endif 2637 #endif
2551 2638
2552 ev_feed_event (EV_A_ w, EV_STAT); 2639 ev_feed_event (EV_A_ w, EV_STAT);
2553 } 2640 }
2554} 2641}
… …
2756 ev_loop (EV_A_ EVLOOP_NONBLOCK); 2843 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2757 } 2844 }
2758 } 2845 }
2759} 2846}
2760 2847
2848static void
2849embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2850{
2851 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2852
2853 {
2854 struct ev_loop *loop = w->other;
2855
2856 ev_loop_fork (EV_A);
2857 }
2858}
2859
2761#if 0 2860#if 0
2762static void 2861static void
2763embed_idle_cb (EV_P_ ev_idle *idle, int revents) 2862embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2764{ 2863{
2765 ev_idle_stop (EV_A_ idle); 2864 ev_idle_stop (EV_A_ idle);
… …
2785 2884
2786 ev_prepare_init (&w->prepare, embed_prepare_cb); 2885 ev_prepare_init (&w->prepare, embed_prepare_cb);
2787 ev_set_priority (&w->prepare, EV_MINPRI); 2886 ev_set_priority (&w->prepare, EV_MINPRI);
2788 ev_prepare_start (EV_A_ &w->prepare); 2887 ev_prepare_start (EV_A_ &w->prepare);
2789 2888
2889 ev_fork_init (&w->fork, embed_fork_cb);
2890 ev_fork_start (EV_A_ &w->fork);
2891
2790 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 2892 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2791 2893
2792 ev_start (EV_A_ (W)w, 1); 2894 ev_start (EV_A_ (W)w, 1);
2793 2895
2794 EV_FREQUENT_CHECK; 2896 EV_FREQUENT_CHECK;
… …
2801 if (expect_false (!ev_is_active (w))) 2903 if (expect_false (!ev_is_active (w)))
2802 return; 2904 return;
2803 2905
2804 EV_FREQUENT_CHECK; 2906 EV_FREQUENT_CHECK;
2805 2907
2806 ev_io_stop (EV_A_ &w->io); 2908 ev_io_stop (EV_A_ &w->io);
2807 ev_prepare_stop (EV_A_ &w->prepare); 2909 ev_prepare_stop (EV_A_ &w->prepare);
2808 2910 ev_fork_stop (EV_A_ &w->fork);
2809 ev_stop (EV_A_ (W)w);
2810 2911
2811 EV_FREQUENT_CHECK; 2912 EV_FREQUENT_CHECK;
2812} 2913}
2813#endif 2914#endif
2814 2915
… …
2911once_cb (EV_P_ struct ev_once *once, int revents) 3012once_cb (EV_P_ struct ev_once *once, int revents)
2912{ 3013{
2913 void (*cb)(int revents, void *arg) = once->cb; 3014 void (*cb)(int revents, void *arg) = once->cb;
2914 void *arg = once->arg; 3015 void *arg = once->arg;
2915 3016
2916 ev_io_stop (EV_A_ &once->io); 3017 ev_io_stop (EV_A_ &once->io);
2917 ev_timer_stop (EV_A_ &once->to); 3018 ev_timer_stop (EV_A_ &once->to);
2918 ev_free (once); 3019 ev_free (once);
2919 3020
2920 cb (revents, arg); 3021 cb (revents, arg);
2921} 3022}
2922 3023
2923static void 3024static void
2924once_cb_io (EV_P_ ev_io *w, int revents) 3025once_cb_io (EV_P_ ev_io *w, int revents)
2925{ 3026{
2926 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3027 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3028
3029 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2927} 3030}
2928 3031
2929static void 3032static void
2930once_cb_to (EV_P_ ev_timer *w, int revents) 3033once_cb_to (EV_P_ ev_timer *w, int revents)
2931{ 3034{
2932 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3035 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3036
3037 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2933} 3038}
2934 3039
2935void 3040void
2936ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3041ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2937{ 3042{

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