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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 1.270 by root, Thu Oct 30 13:07:10 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
… …
374{ 388{
375 syserr_cb = cb; 389 syserr_cb = cb;
376} 390}
377 391
378static void noinline 392static void noinline
379syserr (const char *msg) 393ev_syserr (const char *msg)
380{ 394{
381 if (!msg) 395 if (!msg)
382 msg = "(libev) system error"; 396 msg = "(libev) system error";
383 397
384 if (syserr_cb) 398 if (syserr_cb)
… …
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;
456#if EV_USE_EPOLL
457 unsigned int egen; /* generation counter to counter epoll bugs */
458#endif
440#if EV_SELECT_IS_WINSOCKET 459#if EV_SELECT_IS_WINSOCKET
441 SOCKET handle; 460 SOCKET handle;
442#endif 461#endif
443} ANFD; 462} ANFD;
444 463
… …
557 struct timeval tv; 576 struct timeval tv;
558 577
559 tv.tv_sec = (time_t)delay; 578 tv.tv_sec = (time_t)delay;
560 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 579 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
561 580
581 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
582 /* somehting nto guaranteed by newer posix versions, but guaranteed */
583 /* by older ones */
562 select (0, 0, 0, 0, &tv); 584 select (0, 0, 0, 0, &tv);
563#endif 585#endif
564 } 586 }
565} 587}
566 588
… …
593array_realloc (int elem, void *base, int *cur, int cnt) 615array_realloc (int elem, void *base, int *cur, int cnt)
594{ 616{
595 *cur = array_nextsize (elem, *cur, cnt); 617 *cur = array_nextsize (elem, *cur, cnt);
596 return ev_realloc (base, elem * *cur); 618 return ev_realloc (base, elem * *cur);
597} 619}
620
621#define array_init_zero(base,count) \
622 memset ((void *)(base), 0, sizeof (*(base)) * (count))
598 623
599#define array_needsize(type,base,cur,cnt,init) \ 624#define array_needsize(type,base,cur,cnt,init) \
600 if (expect_false ((cnt) > (cur))) \ 625 if (expect_false ((cnt) > (cur))) \
601 { \ 626 { \
602 int ocur_ = (cur); \ 627 int ocur_ = (cur); \
… …
646 ev_feed_event (EV_A_ events [i], type); 671 ev_feed_event (EV_A_ events [i], type);
647} 672}
648 673
649/*****************************************************************************/ 674/*****************************************************************************/
650 675
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 676void inline_speed
665fd_event (EV_P_ int fd, int revents) 677fd_event (EV_P_ int fd, int revents)
666{ 678{
667 ANFD *anfd = anfds + fd; 679 ANFD *anfd = anfds + fd;
668 ev_io *w; 680 ev_io *w;
… …
700 events |= (unsigned char)w->events; 712 events |= (unsigned char)w->events;
701 713
702#if EV_SELECT_IS_WINSOCKET 714#if EV_SELECT_IS_WINSOCKET
703 if (events) 715 if (events)
704 { 716 {
705 unsigned long argp; 717 unsigned long arg;
706 #ifdef EV_FD_TO_WIN32_HANDLE 718 #ifdef EV_FD_TO_WIN32_HANDLE
707 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 719 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
708 #else 720 #else
709 anfd->handle = _get_osfhandle (fd); 721 anfd->handle = _get_osfhandle (fd);
710 #endif 722 #endif
711 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 723 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
712 } 724 }
713#endif 725#endif
714 726
715 { 727 {
716 unsigned char o_events = anfd->events; 728 unsigned char o_events = anfd->events;
… …
769{ 781{
770 int fd; 782 int fd;
771 783
772 for (fd = 0; fd < anfdmax; ++fd) 784 for (fd = 0; fd < anfdmax; ++fd)
773 if (anfds [fd].events) 785 if (anfds [fd].events)
774 if (!fd_valid (fd) == -1 && errno == EBADF) 786 if (!fd_valid (fd) && errno == EBADF)
775 fd_kill (EV_A_ fd); 787 fd_kill (EV_A_ fd);
776} 788}
777 789
778/* called on ENOMEM in select/poll to kill some fds and retry */ 790/* called on ENOMEM in select/poll to kill some fds and retry */
779static void noinline 791static void noinline
… …
797 809
798 for (fd = 0; fd < anfdmax; ++fd) 810 for (fd = 0; fd < anfdmax; ++fd)
799 if (anfds [fd].events) 811 if (anfds [fd].events)
800 { 812 {
801 anfds [fd].events = 0; 813 anfds [fd].events = 0;
814 anfds [fd].emask = 0;
802 fd_change (EV_A_ fd, EV_IOFDSET | 1); 815 fd_change (EV_A_ fd, EV_IOFDSET | 1);
803 } 816 }
804} 817}
805 818
806/*****************************************************************************/ 819/*****************************************************************************/
… …
938/* rebuild the heap: this function is used only once and executed rarely */ 951/* rebuild the heap: this function is used only once and executed rarely */
939void inline_size 952void inline_size
940reheap (ANHE *heap, int N) 953reheap (ANHE *heap, int N)
941{ 954{
942 int i; 955 int i;
956
943 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 957 /* 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 */ 958 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
945 for (i = 0; i < N; ++i) 959 for (i = 0; i < N; ++i)
946 upheap (heap, i + HEAP0); 960 upheap (heap, i + HEAP0);
947} 961}
948 962
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/*****************************************************************************/ 963/*****************************************************************************/
965 964
966typedef struct 965typedef struct
967{ 966{
968 WL head; 967 WL head;
… …
972static ANSIG *signals; 971static ANSIG *signals;
973static int signalmax; 972static int signalmax;
974 973
975static EV_ATOMIC_T gotsig; 974static EV_ATOMIC_T gotsig;
976 975
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/*****************************************************************************/ 976/*****************************************************************************/
990 977
991void inline_speed 978void inline_speed
992fd_intern (int fd) 979fd_intern (int fd)
993{ 980{
994#ifdef _WIN32 981#ifdef _WIN32
995 int arg = 1; 982 unsigned long arg = 1;
996 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 983 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
997#else 984#else
998 fcntl (fd, F_SETFD, FD_CLOEXEC); 985 fcntl (fd, F_SETFD, FD_CLOEXEC);
999 fcntl (fd, F_SETFL, O_NONBLOCK); 986 fcntl (fd, F_SETFL, O_NONBLOCK);
1000#endif 987#endif
… …
1014 } 1001 }
1015 else 1002 else
1016#endif 1003#endif
1017 { 1004 {
1018 while (pipe (evpipe)) 1005 while (pipe (evpipe))
1019 syserr ("(libev) error creating signal/async pipe"); 1006 ev_syserr ("(libev) error creating signal/async pipe");
1020 1007
1021 fd_intern (evpipe [0]); 1008 fd_intern (evpipe [0]);
1022 fd_intern (evpipe [1]); 1009 fd_intern (evpipe [1]);
1023 ev_io_set (&pipeev, evpipe [0], EV_READ); 1010 ev_io_set (&pipeev, evpipe [0], EV_READ);
1024 } 1011 }
… …
1484 1471
1485 postfork = 0; 1472 postfork = 0;
1486} 1473}
1487 1474
1488#if EV_MULTIPLICITY 1475#if EV_MULTIPLICITY
1476
1489struct ev_loop * 1477struct ev_loop *
1490ev_loop_new (unsigned int flags) 1478ev_loop_new (unsigned int flags)
1491{ 1479{
1492 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1480 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1493 1481
… …
1513{ 1501{
1514 postfork = 1; /* must be in line with ev_default_fork */ 1502 postfork = 1; /* must be in line with ev_default_fork */
1515} 1503}
1516 1504
1517#if EV_VERIFY 1505#if EV_VERIFY
1518static void 1506static void noinline
1507verify_watcher (EV_P_ W w)
1508{
1509 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1510
1511 if (w->pending)
1512 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1513}
1514
1515static void noinline
1516verify_heap (EV_P_ ANHE *heap, int N)
1517{
1518 int i;
1519
1520 for (i = HEAP0; i < N + HEAP0; ++i)
1521 {
1522 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1523 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1524 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1525
1526 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1527 }
1528}
1529
1530static void noinline
1519array_check (W **ws, int cnt) 1531array_verify (EV_P_ W *ws, int cnt)
1520{ 1532{
1521 while (cnt--) 1533 while (cnt--)
1534 {
1522 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1535 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1536 verify_watcher (EV_A_ ws [cnt]);
1537 }
1523} 1538}
1539#endif
1524 1540
1525static void 1541void
1526ev_loop_verify (EV_P) 1542ev_loop_verify (EV_P)
1527{ 1543{
1544#if EV_VERIFY
1528 int i; 1545 int i;
1546 WL w;
1529 1547
1548 assert (activecnt >= -1);
1549
1550 assert (fdchangemax >= fdchangecnt);
1551 for (i = 0; i < fdchangecnt; ++i)
1552 assert (("negative fd in fdchanges", fdchanges [i] >= 0));
1553
1554 assert (anfdmax >= 0);
1555 for (i = 0; i < anfdmax; ++i)
1556 for (w = anfds [i].head; w; w = w->next)
1557 {
1558 verify_watcher (EV_A_ (W)w);
1559 assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
1560 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1561 }
1562
1563 assert (timermax >= timercnt);
1530 checkheap (timers, timercnt); 1564 verify_heap (EV_A_ timers, timercnt);
1565
1531#if EV_PERIODIC_ENABLE 1566#if EV_PERIODIC_ENABLE
1567 assert (periodicmax >= periodiccnt);
1532 checkheap (periodics, periodiccnt); 1568 verify_heap (EV_A_ periodics, periodiccnt);
1533#endif 1569#endif
1534 1570
1571 for (i = NUMPRI; i--; )
1572 {
1573 assert (pendingmax [i] >= pendingcnt [i]);
1535#if EV_IDLE_ENABLE 1574#if EV_IDLE_ENABLE
1536 for (i = NUMPRI; i--; ) 1575 assert (idleall >= 0);
1576 assert (idlemax [i] >= idlecnt [i]);
1537 array_check ((W **)idles [i], idlecnt [i]); 1577 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1538#endif 1578#endif
1579 }
1580
1539#if EV_FORK_ENABLE 1581#if EV_FORK_ENABLE
1582 assert (forkmax >= forkcnt);
1540 array_check ((W **)forks, forkcnt); 1583 array_verify (EV_A_ (W *)forks, forkcnt);
1541#endif 1584#endif
1542 array_check ((W **)prepares, preparecnt); 1585
1543 array_check ((W **)checks, checkcnt);
1544#if EV_ASYNC_ENABLE 1586#if EV_ASYNC_ENABLE
1587 assert (asyncmax >= asynccnt);
1545 array_check ((W **)asyncs, asynccnt); 1588 array_verify (EV_A_ (W *)asyncs, asynccnt);
1589#endif
1590
1591 assert (preparemax >= preparecnt);
1592 array_verify (EV_A_ (W *)prepares, preparecnt);
1593
1594 assert (checkmax >= checkcnt);
1595 array_verify (EV_A_ (W *)checks, checkcnt);
1596
1597# if 0
1598 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1599 for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1546#endif 1600# endif
1547}
1548#endif 1601#endif
1602}
1549 1603
1550#endif 1604#endif /* multiplicity */
1551 1605
1552#if EV_MULTIPLICITY 1606#if EV_MULTIPLICITY
1553struct ev_loop * 1607struct ev_loop *
1554ev_default_loop_init (unsigned int flags) 1608ev_default_loop_init (unsigned int flags)
1555#else 1609#else
… …
1588{ 1642{
1589#if EV_MULTIPLICITY 1643#if EV_MULTIPLICITY
1590 struct ev_loop *loop = ev_default_loop_ptr; 1644 struct ev_loop *loop = ev_default_loop_ptr;
1591#endif 1645#endif
1592 1646
1647 ev_default_loop_ptr = 0;
1648
1593#ifndef _WIN32 1649#ifndef _WIN32
1594 ev_ref (EV_A); /* child watcher */ 1650 ev_ref (EV_A); /* child watcher */
1595 ev_signal_stop (EV_A_ &childev); 1651 ev_signal_stop (EV_A_ &childev);
1596#endif 1652#endif
1597 1653
… …
1603{ 1659{
1604#if EV_MULTIPLICITY 1660#if EV_MULTIPLICITY
1605 struct ev_loop *loop = ev_default_loop_ptr; 1661 struct ev_loop *loop = ev_default_loop_ptr;
1606#endif 1662#endif
1607 1663
1608 if (backend)
1609 postfork = 1; /* must be in line with ev_loop_fork */ 1664 postfork = 1; /* must be in line with ev_loop_fork */
1610} 1665}
1611 1666
1612/*****************************************************************************/ 1667/*****************************************************************************/
1613 1668
1614void 1669void
… …
1619 1674
1620void inline_speed 1675void inline_speed
1621call_pending (EV_P) 1676call_pending (EV_P)
1622{ 1677{
1623 int pri; 1678 int pri;
1624
1625 EV_FREQUENT_CHECK;
1626 1679
1627 for (pri = NUMPRI; pri--; ) 1680 for (pri = NUMPRI; pri--; )
1628 while (pendingcnt [pri]) 1681 while (pendingcnt [pri])
1629 { 1682 {
1630 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1683 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
… …
1633 { 1686 {
1634 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1687 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1635 1688
1636 p->w->pending = 0; 1689 p->w->pending = 0;
1637 EV_CB_INVOKE (p->w, p->events); 1690 EV_CB_INVOKE (p->w, p->events);
1691 EV_FREQUENT_CHECK;
1638 } 1692 }
1639 } 1693 }
1640
1641 EV_FREQUENT_CHECK;
1642} 1694}
1643 1695
1644#if EV_IDLE_ENABLE 1696#if EV_IDLE_ENABLE
1645void inline_size 1697void inline_size
1646idle_reify (EV_P) 1698idle_reify (EV_P)
… …
1698#if EV_PERIODIC_ENABLE 1750#if EV_PERIODIC_ENABLE
1699void inline_size 1751void inline_size
1700periodics_reify (EV_P) 1752periodics_reify (EV_P)
1701{ 1753{
1702 EV_FREQUENT_CHECK; 1754 EV_FREQUENT_CHECK;
1755
1703 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 1756 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704 { 1757 {
1705 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 1758 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1706 1759
1707 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1760 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
1713 1766
1714 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 1767 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1715 1768
1716 ANHE_at_cache (periodics [HEAP0]); 1769 ANHE_at_cache (periodics [HEAP0]);
1717 downheap (periodics, periodiccnt, HEAP0); 1770 downheap (periodics, periodiccnt, HEAP0);
1718 EV_FREQUENT_CHECK;
1719 } 1771 }
1720 else if (w->interval) 1772 else if (w->interval)
1721 { 1773 {
1722 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1774 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 */ 1775 /* if next trigger time is not sufficiently in the future, put it there */
… …
1848ev_unref (EV_P) 1900ev_unref (EV_P)
1849{ 1901{
1850 --activecnt; 1902 --activecnt;
1851} 1903}
1852 1904
1905void
1906ev_now_update (EV_P)
1907{
1908 time_update (EV_A_ 1e100);
1909}
1910
1853static int loop_done; 1911static int loop_done;
1854 1912
1855void 1913void
1856ev_loop (EV_P_ int flags) 1914ev_loop (EV_P_ int flags)
1857{ 1915{
… …
1859 1917
1860 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 1918 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1861 1919
1862 do 1920 do
1863 { 1921 {
1922#if EV_VERIFY >= 2
1923 ev_loop_verify (EV_A);
1924#endif
1925
1864#ifndef _WIN32 1926#ifndef _WIN32
1865 if (expect_false (curpid)) /* penalise the forking check even more */ 1927 if (expect_false (curpid)) /* penalise the forking check even more */
1866 if (expect_false (getpid () != curpid)) 1928 if (expect_false (getpid () != curpid))
1867 { 1929 {
1868 curpid = getpid (); 1930 curpid = getpid ();
… …
2062 2124
2063 if (expect_false (ev_is_active (w))) 2125 if (expect_false (ev_is_active (w)))
2064 return; 2126 return;
2065 2127
2066 assert (("ev_io_start called with negative fd", fd >= 0)); 2128 assert (("ev_io_start called with negative fd", fd >= 0));
2129 assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE))));
2067 2130
2068 EV_FREQUENT_CHECK; 2131 EV_FREQUENT_CHECK;
2069 2132
2070 ev_start (EV_A_ (W)w, 1); 2133 ev_start (EV_A_ (W)w, 1);
2071 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2134 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2072 wlist_add (&anfds[fd].head, (WL)w); 2135 wlist_add (&anfds[fd].head, (WL)w);
2073 2136
2074 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2137 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
2075 w->events &= ~EV_IOFDSET; 2138 w->events &= ~EV_IOFDSET;
2076 2139
… …
2268 sigset_t full, prev; 2331 sigset_t full, prev;
2269 sigfillset (&full); 2332 sigfillset (&full);
2270 sigprocmask (SIG_SETMASK, &full, &prev); 2333 sigprocmask (SIG_SETMASK, &full, &prev);
2271#endif 2334#endif
2272 2335
2273 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2336 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2274 2337
2275#ifndef _WIN32 2338#ifndef _WIN32
2276 sigprocmask (SIG_SETMASK, &prev, 0); 2339 sigprocmask (SIG_SETMASK, &prev, 0);
2277#endif 2340#endif
2278 } 2341 }
… …
2420 2483
2421static void noinline 2484static void noinline
2422infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2485infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2423{ 2486{
2424 if (slot < 0) 2487 if (slot < 0)
2425 /* overflow, need to check for all hahs slots */ 2488 /* overflow, need to check for all hash slots */
2426 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2489 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2427 infy_wd (EV_A_ slot, wd, ev); 2490 infy_wd (EV_A_ slot, wd, ev);
2428 else 2491 else
2429 { 2492 {
2430 WL w_; 2493 WL w_;
… …
2464infy_init (EV_P) 2527infy_init (EV_P)
2465{ 2528{
2466 if (fs_fd != -2) 2529 if (fs_fd != -2)
2467 return; 2530 return;
2468 2531
2532 /* kernels < 2.6.25 are borked
2533 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2534 */
2535 {
2536 struct utsname buf;
2537 int major, minor, micro;
2538
2539 fs_fd = -1;
2540
2541 if (uname (&buf))
2542 return;
2543
2544 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2545 return;
2546
2547 if (major < 2
2548 || (major == 2 && minor < 6)
2549 || (major == 2 && minor == 6 && micro < 25))
2550 return;
2551 }
2552
2469 fs_fd = inotify_init (); 2553 fs_fd = inotify_init ();
2470 2554
2471 if (fs_fd >= 0) 2555 if (fs_fd >= 0)
2472 { 2556 {
2473 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 2557 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
… …
2502 if (fs_fd >= 0) 2586 if (fs_fd >= 0)
2503 infy_add (EV_A_ w); /* re-add, no matter what */ 2587 infy_add (EV_A_ w); /* re-add, no matter what */
2504 else 2588 else
2505 ev_timer_start (EV_A_ &w->timer); 2589 ev_timer_start (EV_A_ &w->timer);
2506 } 2590 }
2507
2508 } 2591 }
2509} 2592}
2510 2593
2594#endif
2595
2596#ifdef _WIN32
2597# define EV_LSTAT(p,b) _stati64 (p, b)
2598#else
2599# define EV_LSTAT(p,b) lstat (p, b)
2511#endif 2600#endif
2512 2601
2513void 2602void
2514ev_stat_stat (EV_P_ ev_stat *w) 2603ev_stat_stat (EV_P_ ev_stat *w)
2515{ 2604{
… …
2542 || w->prev.st_atime != w->attr.st_atime 2631 || w->prev.st_atime != w->attr.st_atime
2543 || w->prev.st_mtime != w->attr.st_mtime 2632 || w->prev.st_mtime != w->attr.st_mtime
2544 || w->prev.st_ctime != w->attr.st_ctime 2633 || w->prev.st_ctime != w->attr.st_ctime
2545 ) { 2634 ) {
2546 #if EV_USE_INOTIFY 2635 #if EV_USE_INOTIFY
2636 if (fs_fd >= 0)
2637 {
2547 infy_del (EV_A_ w); 2638 infy_del (EV_A_ w);
2548 infy_add (EV_A_ w); 2639 infy_add (EV_A_ w);
2549 ev_stat_stat (EV_A_ w); /* avoid race... */ 2640 ev_stat_stat (EV_A_ w); /* avoid race... */
2641 }
2550 #endif 2642 #endif
2551 2643
2552 ev_feed_event (EV_A_ w, EV_STAT); 2644 ev_feed_event (EV_A_ w, EV_STAT);
2553 } 2645 }
2554} 2646}
… …
2756 ev_loop (EV_A_ EVLOOP_NONBLOCK); 2848 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2757 } 2849 }
2758 } 2850 }
2759} 2851}
2760 2852
2853static void
2854embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2855{
2856 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2857
2858 {
2859 struct ev_loop *loop = w->other;
2860
2861 ev_loop_fork (EV_A);
2862 }
2863}
2864
2761#if 0 2865#if 0
2762static void 2866static void
2763embed_idle_cb (EV_P_ ev_idle *idle, int revents) 2867embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2764{ 2868{
2765 ev_idle_stop (EV_A_ idle); 2869 ev_idle_stop (EV_A_ idle);
… …
2785 2889
2786 ev_prepare_init (&w->prepare, embed_prepare_cb); 2890 ev_prepare_init (&w->prepare, embed_prepare_cb);
2787 ev_set_priority (&w->prepare, EV_MINPRI); 2891 ev_set_priority (&w->prepare, EV_MINPRI);
2788 ev_prepare_start (EV_A_ &w->prepare); 2892 ev_prepare_start (EV_A_ &w->prepare);
2789 2893
2894 ev_fork_init (&w->fork, embed_fork_cb);
2895 ev_fork_start (EV_A_ &w->fork);
2896
2790 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 2897 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2791 2898
2792 ev_start (EV_A_ (W)w, 1); 2899 ev_start (EV_A_ (W)w, 1);
2793 2900
2794 EV_FREQUENT_CHECK; 2901 EV_FREQUENT_CHECK;
… …
2801 if (expect_false (!ev_is_active (w))) 2908 if (expect_false (!ev_is_active (w)))
2802 return; 2909 return;
2803 2910
2804 EV_FREQUENT_CHECK; 2911 EV_FREQUENT_CHECK;
2805 2912
2806 ev_io_stop (EV_A_ &w->io); 2913 ev_io_stop (EV_A_ &w->io);
2807 ev_prepare_stop (EV_A_ &w->prepare); 2914 ev_prepare_stop (EV_A_ &w->prepare);
2808 2915 ev_fork_stop (EV_A_ &w->fork);
2809 ev_stop (EV_A_ (W)w);
2810 2916
2811 EV_FREQUENT_CHECK; 2917 EV_FREQUENT_CHECK;
2812} 2918}
2813#endif 2919#endif
2814 2920
… …
2911once_cb (EV_P_ struct ev_once *once, int revents) 3017once_cb (EV_P_ struct ev_once *once, int revents)
2912{ 3018{
2913 void (*cb)(int revents, void *arg) = once->cb; 3019 void (*cb)(int revents, void *arg) = once->cb;
2914 void *arg = once->arg; 3020 void *arg = once->arg;
2915 3021
2916 ev_io_stop (EV_A_ &once->io); 3022 ev_io_stop (EV_A_ &once->io);
2917 ev_timer_stop (EV_A_ &once->to); 3023 ev_timer_stop (EV_A_ &once->to);
2918 ev_free (once); 3024 ev_free (once);
2919 3025
2920 cb (revents, arg); 3026 cb (revents, arg);
2921} 3027}
2922 3028
2923static void 3029static void
2924once_cb_io (EV_P_ ev_io *w, int revents) 3030once_cb_io (EV_P_ ev_io *w, int revents)
2925{ 3031{
2926 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3032 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3033
3034 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2927} 3035}
2928 3036
2929static void 3037static void
2930once_cb_to (EV_P_ ev_timer *w, int revents) 3038once_cb_to (EV_P_ ev_timer *w, int revents)
2931{ 3039{
2932 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3040 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3041
3042 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2933} 3043}
2934 3044
2935void 3045void
2936ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3046ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2937{ 3047{

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