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Comparing libev/ev.c (file contents):
Revision 1.141 by root, Mon Nov 26 20:33:58 2007 UTC vs.
Revision 1.148 by root, Tue Nov 27 11:11:13 2007 UTC

… …
198# define inline_speed static inline 198# define inline_speed static inline
199# endif 199# endif
200#else 200#else
201# define expect(expr,value) (expr) 201# define expect(expr,value) (expr)
202# define inline_speed static 202# define inline_speed static
203# define inline_minimal static 203# define inline_size static
204# define noinline 204# define noinline
205#endif 205#endif
206 206
207#define expect_false(expr) expect ((expr) != 0, 0) 207#define expect_false(expr) expect ((expr) != 0, 0)
208#define expect_true(expr) expect ((expr) != 0, 1) 208#define expect_true(expr) expect ((expr) != 0, 1)
… …
715 715
716#ifndef _WIN32 716#ifndef _WIN32
717 717
718static ev_signal childev; 718static ev_signal childev;
719 719
720#ifndef WCONTINUED
721# define WCONTINUED 0
722#endif
723
724void inline_speed 720void inline_speed
725child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 721child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
726{ 722{
727 ev_child *w; 723 ev_child *w;
728 724
… …
734 w->rstatus = status; 730 w->rstatus = status;
735 ev_feed_event (EV_A_ (W)w, EV_CHILD); 731 ev_feed_event (EV_A_ (W)w, EV_CHILD);
736 } 732 }
737} 733}
738 734
735#ifndef WCONTINUED
736# define WCONTINUED 0
737#endif
738
739static void 739static void
740childcb (EV_P_ ev_signal *sw, int revents) 740childcb (EV_P_ ev_signal *sw, int revents)
741{ 741{
742 int pid, status; 742 int pid, status;
743 743
744 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
744 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 745 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
745 { 746 if (!WCONTINUED
747 || errno != EINVAL
748 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
749 return;
750
746 /* make sure we are called again until all childs have been reaped */ 751 /* make sure we are called again until all childs have been reaped */
747 /* we need to do it this way so that the callback gets called before we continue */ 752 /* we need to do it this way so that the callback gets called before we continue */
748 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 753 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
749 754
750 child_reap (EV_A_ sw, pid, pid, status); 755 child_reap (EV_A_ sw, pid, pid, status);
751 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 756 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
752 }
753} 757}
754 758
755#endif 759#endif
756 760
757/*****************************************************************************/ 761/*****************************************************************************/
… …
1272 ? EVUNLOOP_ONE 1276 ? EVUNLOOP_ONE
1273 : EVUNLOOP_CANCEL; 1277 : EVUNLOOP_CANCEL;
1274 1278
1275 while (activecnt) 1279 while (activecnt)
1276 { 1280 {
1281 /* we might have forked, so reify kernel state if necessary */
1282 #if EV_FORK_ENABLE
1283 if (expect_false (postfork))
1284 if (forkcnt)
1285 {
1286 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1287 call_pending (EV_A);
1288 }
1289 #endif
1290
1277 /* queue check watchers (and execute them) */ 1291 /* queue check watchers (and execute them) */
1278 if (expect_false (preparecnt)) 1292 if (expect_false (preparecnt))
1279 { 1293 {
1280 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1294 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1281 call_pending (EV_A); 1295 call_pending (EV_A);
… …
1554 ev_periodic_stop (EV_A_ w); 1568 ev_periodic_stop (EV_A_ w);
1555 ev_periodic_start (EV_A_ w); 1569 ev_periodic_start (EV_A_ w);
1556} 1570}
1557#endif 1571#endif
1558 1572
1559void
1560ev_idle_start (EV_P_ ev_idle *w)
1561{
1562 if (expect_false (ev_is_active (w)))
1563 return;
1564
1565 ev_start (EV_A_ (W)w, ++idlecnt);
1566 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1567 idles [idlecnt - 1] = w;
1568}
1569
1570void
1571ev_idle_stop (EV_P_ ev_idle *w)
1572{
1573 ev_clear_pending (EV_A_ (W)w);
1574 if (expect_false (!ev_is_active (w)))
1575 return;
1576
1577 {
1578 int active = ((W)w)->active;
1579 idles [active - 1] = idles [--idlecnt];
1580 ((W)idles [active - 1])->active = active;
1581 }
1582
1583 ev_stop (EV_A_ (W)w);
1584}
1585
1586void
1587ev_prepare_start (EV_P_ ev_prepare *w)
1588{
1589 if (expect_false (ev_is_active (w)))
1590 return;
1591
1592 ev_start (EV_A_ (W)w, ++preparecnt);
1593 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1594 prepares [preparecnt - 1] = w;
1595}
1596
1597void
1598ev_prepare_stop (EV_P_ ev_prepare *w)
1599{
1600 ev_clear_pending (EV_A_ (W)w);
1601 if (expect_false (!ev_is_active (w)))
1602 return;
1603
1604 {
1605 int active = ((W)w)->active;
1606 prepares [active - 1] = prepares [--preparecnt];
1607 ((W)prepares [active - 1])->active = active;
1608 }
1609
1610 ev_stop (EV_A_ (W)w);
1611}
1612
1613void
1614ev_check_start (EV_P_ ev_check *w)
1615{
1616 if (expect_false (ev_is_active (w)))
1617 return;
1618
1619 ev_start (EV_A_ (W)w, ++checkcnt);
1620 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1621 checks [checkcnt - 1] = w;
1622}
1623
1624void
1625ev_check_stop (EV_P_ ev_check *w)
1626{
1627 ev_clear_pending (EV_A_ (W)w);
1628 if (expect_false (!ev_is_active (w)))
1629 return;
1630
1631 {
1632 int active = ((W)w)->active;
1633 checks [active - 1] = checks [--checkcnt];
1634 ((W)checks [active - 1])->active = active;
1635 }
1636
1637 ev_stop (EV_A_ (W)w);
1638}
1639
1640#ifndef SA_RESTART 1573#ifndef SA_RESTART
1641# define SA_RESTART 0 1574# define SA_RESTART 0
1642#endif 1575#endif
1643 1576
1644void 1577void
… …
1706 1639
1707 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1640 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1708 ev_stop (EV_A_ (W)w); 1641 ev_stop (EV_A_ (W)w);
1709} 1642}
1710 1643
1644#if EV_STAT_ENABLE
1645
1646# ifdef _WIN32
1647# undef lstat
1648# define lstat(a,b) _stati64 (a,b)
1649# endif
1650
1651#define DEF_STAT_INTERVAL 5.0074891
1652#define MIN_STAT_INTERVAL 0.1074891
1653
1654void
1655ev_stat_stat (EV_P_ ev_stat *w)
1656{
1657 if (lstat (w->path, &w->attr) < 0)
1658 w->attr.st_nlink = 0;
1659 else if (!w->attr.st_nlink)
1660 w->attr.st_nlink = 1;
1661}
1662
1663static void
1664stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1665{
1666 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1667
1668 /* we copy this here each the time so that */
1669 /* prev has the old value when the callback gets invoked */
1670 w->prev = w->attr;
1671 ev_stat_stat (EV_A_ w);
1672
1673 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1674 ev_feed_event (EV_A_ w, EV_STAT);
1675}
1676
1677void
1678ev_stat_start (EV_P_ ev_stat *w)
1679{
1680 if (expect_false (ev_is_active (w)))
1681 return;
1682
1683 /* since we use memcmp, we need to clear any padding data etc. */
1684 memset (&w->prev, 0, sizeof (ev_statdata));
1685 memset (&w->attr, 0, sizeof (ev_statdata));
1686
1687 ev_stat_stat (EV_A_ w);
1688
1689 if (w->interval < MIN_STAT_INTERVAL)
1690 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1691
1692 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1693 ev_set_priority (&w->timer, ev_priority (w));
1694 ev_timer_start (EV_A_ &w->timer);
1695
1696 ev_start (EV_A_ (W)w, 1);
1697}
1698
1699void
1700ev_stat_stop (EV_P_ ev_stat *w)
1701{
1702 ev_clear_pending (EV_A_ (W)w);
1703 if (expect_false (!ev_is_active (w)))
1704 return;
1705
1706 ev_timer_stop (EV_A_ &w->timer);
1707
1708 ev_stop (EV_A_ (W)w);
1709}
1710#endif
1711
1712void
1713ev_idle_start (EV_P_ ev_idle *w)
1714{
1715 if (expect_false (ev_is_active (w)))
1716 return;
1717
1718 ev_start (EV_A_ (W)w, ++idlecnt);
1719 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1720 idles [idlecnt - 1] = w;
1721}
1722
1723void
1724ev_idle_stop (EV_P_ ev_idle *w)
1725{
1726 ev_clear_pending (EV_A_ (W)w);
1727 if (expect_false (!ev_is_active (w)))
1728 return;
1729
1730 {
1731 int active = ((W)w)->active;
1732 idles [active - 1] = idles [--idlecnt];
1733 ((W)idles [active - 1])->active = active;
1734 }
1735
1736 ev_stop (EV_A_ (W)w);
1737}
1738
1739void
1740ev_prepare_start (EV_P_ ev_prepare *w)
1741{
1742 if (expect_false (ev_is_active (w)))
1743 return;
1744
1745 ev_start (EV_A_ (W)w, ++preparecnt);
1746 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1747 prepares [preparecnt - 1] = w;
1748}
1749
1750void
1751ev_prepare_stop (EV_P_ ev_prepare *w)
1752{
1753 ev_clear_pending (EV_A_ (W)w);
1754 if (expect_false (!ev_is_active (w)))
1755 return;
1756
1757 {
1758 int active = ((W)w)->active;
1759 prepares [active - 1] = prepares [--preparecnt];
1760 ((W)prepares [active - 1])->active = active;
1761 }
1762
1763 ev_stop (EV_A_ (W)w);
1764}
1765
1766void
1767ev_check_start (EV_P_ ev_check *w)
1768{
1769 if (expect_false (ev_is_active (w)))
1770 return;
1771
1772 ev_start (EV_A_ (W)w, ++checkcnt);
1773 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1774 checks [checkcnt - 1] = w;
1775}
1776
1777void
1778ev_check_stop (EV_P_ ev_check *w)
1779{
1780 ev_clear_pending (EV_A_ (W)w);
1781 if (expect_false (!ev_is_active (w)))
1782 return;
1783
1784 {
1785 int active = ((W)w)->active;
1786 checks [active - 1] = checks [--checkcnt];
1787 ((W)checks [active - 1])->active = active;
1788 }
1789
1790 ev_stop (EV_A_ (W)w);
1791}
1792
1711#if EV_EMBED_ENABLE 1793#if EV_EMBED_ENABLE
1712void noinline 1794void noinline
1713ev_embed_sweep (EV_P_ ev_embed *w) 1795ev_embed_sweep (EV_P_ ev_embed *w)
1714{ 1796{
1715 ev_loop (w->loop, EVLOOP_NONBLOCK); 1797 ev_loop (w->loop, EVLOOP_NONBLOCK);
… …
1755 1837
1756 ev_stop (EV_A_ (W)w); 1838 ev_stop (EV_A_ (W)w);
1757} 1839}
1758#endif 1840#endif
1759 1841
1760#if EV_STAT_ENABLE 1842#if EV_FORK_ENABLE
1761
1762# ifdef _WIN32
1763# define lstat(a,b) stat(a,b)
1764# endif
1765
1766void 1843void
1767ev_stat_stat (EV_P_ ev_stat *w)
1768{
1769 if (lstat (w->path, &w->attr) < 0)
1770 w->attr.st_nlink = 0;
1771 else if (!w->attr.st_nlink)
1772 w->attr.st_nlink = 1;
1773}
1774
1775static void
1776stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1777{
1778 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1779
1780 /* we copy this here each the time so that */
1781 /* prev has the old value when the callback gets invoked */
1782 w->prev = w->attr;
1783 ev_stat_stat (EV_A_ w);
1784
1785 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1786 ev_feed_event (EV_A_ w, EV_STAT);
1787}
1788
1789void
1790ev_stat_start (EV_P_ ev_stat *w) 1844ev_fork_start (EV_P_ ev_fork *w)
1791{ 1845{
1792 if (expect_false (ev_is_active (w))) 1846 if (expect_false (ev_is_active (w)))
1793 return; 1847 return;
1794 1848
1795 /* since we use memcmp, we need to clear any padding data etc. */
1796 memset (&w->prev, 0, sizeof (ev_statdata));
1797 memset (&w->attr, 0, sizeof (ev_statdata));
1798
1799 ev_stat_stat (EV_A_ w);
1800
1801 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1802 ev_set_priority (&w->timer, ev_priority (w));
1803 ev_timer_start (EV_A_ &w->timer);
1804
1805 ev_start (EV_A_ (W)w, 1); 1849 ev_start (EV_A_ (W)w, ++forkcnt);
1850 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
1851 forks [forkcnt - 1] = w;
1806} 1852}
1807 1853
1808void 1854void
1809ev_stat_stop (EV_P_ ev_stat *w) 1855ev_fork_stop (EV_P_ ev_fork *w)
1810{ 1856{
1811 ev_clear_pending (EV_A_ (W)w); 1857 ev_clear_pending (EV_A_ (W)w);
1812 if (expect_false (!ev_is_active (w))) 1858 if (expect_false (!ev_is_active (w)))
1813 return; 1859 return;
1814 1860
1815 ev_timer_stop (EV_A_ &w->timer); 1861 {
1862 int active = ((W)w)->active;
1863 forks [active - 1] = forks [--forkcnt];
1864 ((W)forks [active - 1])->active = active;
1865 }
1816 1866
1817 ev_stop (EV_A_ (W)w); 1867 ev_stop (EV_A_ (W)w);
1818} 1868}
1819#endif 1869#endif
1820 1870

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