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

Comparing libev/ev.c (file contents):
Revision 1.168 by root, Sat Dec 8 14:12:07 2007 UTC vs.
Revision 1.172 by root, Sun Dec 9 02:27:44 2007 UTC

222#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 222#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ 223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
224 224
225#if __GNUC__ >= 3 225#if __GNUC__ >= 3
226# define expect(expr,value) __builtin_expect ((expr),(value)) 226# define expect(expr,value) __builtin_expect ((expr),(value))
227# define inline_size static inline /* inline for codesize */
228# if EV_MINIMAL
229# define noinline __attribute__ ((noinline)) 227# define noinline __attribute__ ((noinline))
230# define inline_speed static noinline
231# else
232# define noinline
233# define inline_speed static inline
234# endif
235#else 228#else
236# define expect(expr,value) (expr) 229# define expect(expr,value) (expr)
237# define inline_speed static
238# define inline_size static
239# define noinline 230# define noinline
231# if __STDC_VERSION__ < 199901L
232# define inline
233# endif
240#endif 234#endif
241 235
242#define expect_false(expr) expect ((expr) != 0, 0) 236#define expect_false(expr) expect ((expr) != 0, 0)
243#define expect_true(expr) expect ((expr) != 0, 1) 237#define expect_true(expr) expect ((expr) != 0, 1)
238#define inline_size static inline
239
240#if EV_MINIMAL
241# define inline_speed static noinline
242#else
243# define inline_speed static inline
244#endif
244 245
245#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 246#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 247#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247 248
248#define EMPTY /* required for microsofts broken pseudo-c compiler */ 249#define EMPTY /* required for microsofts broken pseudo-c compiler */
417 } 418 }
418 419
419 return ncur; 420 return ncur;
420} 421}
421 422
422inline_speed void * 423static noinline void *
423array_realloc (int elem, void *base, int *cur, int cnt) 424array_realloc (int elem, void *base, int *cur, int cnt)
424{ 425{
425 *cur = array_nextsize (elem, *cur, cnt); 426 *cur = array_nextsize (elem, *cur, cnt);
426 return ev_realloc (base, elem * *cur); 427 return ev_realloc (base, elem * *cur);
427} 428}
452 453
453void noinline 454void noinline
454ev_feed_event (EV_P_ void *w, int revents) 455ev_feed_event (EV_P_ void *w, int revents)
455{ 456{
456 W w_ = (W)w; 457 W w_ = (W)w;
458 int pri = ABSPRI (w_);
457 459
458 if (expect_false (w_->pending)) 460 if (expect_false (w_->pending))
461 pendings [pri][w_->pending - 1].events |= revents;
462 else
459 { 463 {
464 w_->pending = ++pendingcnt [pri];
465 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
466 pendings [pri][w_->pending - 1].w = w_;
460 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 467 pendings [pri][w_->pending - 1].events = revents;
461 return;
462 } 468 }
463
464 w_->pending = ++pendingcnt [ABSPRI (w_)];
465 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
466 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
467 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
468} 469}
469 470
470void inline_size 471void inline_size
471queue_events (EV_P_ W *events, int eventcnt, int type) 472queue_events (EV_P_ W *events, int eventcnt, int type)
472{ 473{
748 for (signum = signalmax; signum--; ) 749 for (signum = signalmax; signum--; )
749 if (signals [signum].gotsig) 750 if (signals [signum].gotsig)
750 ev_feed_signal_event (EV_A_ signum + 1); 751 ev_feed_signal_event (EV_A_ signum + 1);
751} 752}
752 753
753void inline_size 754void inline_speed
754fd_intern (int fd) 755fd_intern (int fd)
755{ 756{
756#ifdef _WIN32 757#ifdef _WIN32
757 int arg = 1; 758 int arg = 1;
758 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 759 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1413 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 1414 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1414 call_pending (EV_A); 1415 call_pending (EV_A);
1415 } 1416 }
1416#endif 1417#endif
1417 1418
1418 /* queue check watchers (and execute them) */ 1419 /* queue prepare watchers (and execute them) */
1419 if (expect_false (preparecnt)) 1420 if (expect_false (preparecnt))
1420 { 1421 {
1421 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1422 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1422 call_pending (EV_A); 1423 call_pending (EV_A);
1423 } 1424 }
1545ev_clear_pending (EV_P_ void *w) 1546ev_clear_pending (EV_P_ void *w)
1546{ 1547{
1547 W w_ = (W)w; 1548 W w_ = (W)w;
1548 int pending = w_->pending; 1549 int pending = w_->pending;
1549 1550
1550 if (!pending) 1551 if (expect_true (pending))
1552 {
1553 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1554 w_->pending = 0;
1555 p->w = 0;
1556 return p->events;
1557 }
1558 else
1551 return 0; 1559 return 0;
1552
1553 w_->pending = 0;
1554 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1555 p->w = 0;
1556
1557 return p->events;
1558} 1560}
1559 1561
1560void inline_size 1562void inline_size
1561pri_adjust (EV_P_ W w) 1563pri_adjust (EV_P_ W w)
1562{ 1564{
1581 w->active = 0; 1583 w->active = 0;
1582} 1584}
1583 1585
1584/*****************************************************************************/ 1586/*****************************************************************************/
1585 1587
1586void 1588void noinline
1587ev_io_start (EV_P_ ev_io *w) 1589ev_io_start (EV_P_ ev_io *w)
1588{ 1590{
1589 int fd = w->fd; 1591 int fd = w->fd;
1590 1592
1591 if (expect_false (ev_is_active (w))) 1593 if (expect_false (ev_is_active (w)))
1598 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1600 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1599 1601
1600 fd_change (EV_A_ fd); 1602 fd_change (EV_A_ fd);
1601} 1603}
1602 1604
1603void 1605void noinline
1604ev_io_stop (EV_P_ ev_io *w) 1606ev_io_stop (EV_P_ ev_io *w)
1605{ 1607{
1606 clear_pending (EV_A_ (W)w); 1608 clear_pending (EV_A_ (W)w);
1607 if (expect_false (!ev_is_active (w))) 1609 if (expect_false (!ev_is_active (w)))
1608 return; 1610 return;
1613 ev_stop (EV_A_ (W)w); 1615 ev_stop (EV_A_ (W)w);
1614 1616
1615 fd_change (EV_A_ w->fd); 1617 fd_change (EV_A_ w->fd);
1616} 1618}
1617 1619
1618void 1620void noinline
1619ev_timer_start (EV_P_ ev_timer *w) 1621ev_timer_start (EV_P_ ev_timer *w)
1620{ 1622{
1621 if (expect_false (ev_is_active (w))) 1623 if (expect_false (ev_is_active (w)))
1622 return; 1624 return;
1623 1625
1631 upheap ((WT *)timers, timercnt - 1); 1633 upheap ((WT *)timers, timercnt - 1);
1632 1634
1633 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1635 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1634} 1636}
1635 1637
1636void 1638void noinline
1637ev_timer_stop (EV_P_ ev_timer *w) 1639ev_timer_stop (EV_P_ ev_timer *w)
1638{ 1640{
1639 clear_pending (EV_A_ (W)w); 1641 clear_pending (EV_A_ (W)w);
1640 if (expect_false (!ev_is_active (w))) 1642 if (expect_false (!ev_is_active (w)))
1641 return; 1643 return;
1655 ((WT)w)->at -= mn_now; 1657 ((WT)w)->at -= mn_now;
1656 1658
1657 ev_stop (EV_A_ (W)w); 1659 ev_stop (EV_A_ (W)w);
1658} 1660}
1659 1661
1660void 1662void noinline
1661ev_timer_again (EV_P_ ev_timer *w) 1663ev_timer_again (EV_P_ ev_timer *w)
1662{ 1664{
1663 if (ev_is_active (w)) 1665 if (ev_is_active (w))
1664 { 1666 {
1665 if (w->repeat) 1667 if (w->repeat)
1676 ev_timer_start (EV_A_ w); 1678 ev_timer_start (EV_A_ w);
1677 } 1679 }
1678} 1680}
1679 1681
1680#if EV_PERIODIC_ENABLE 1682#if EV_PERIODIC_ENABLE
1681void 1683void noinline
1682ev_periodic_start (EV_P_ ev_periodic *w) 1684ev_periodic_start (EV_P_ ev_periodic *w)
1683{ 1685{
1684 if (expect_false (ev_is_active (w))) 1686 if (expect_false (ev_is_active (w)))
1685 return; 1687 return;
1686 1688
1699 upheap ((WT *)periodics, periodiccnt - 1); 1701 upheap ((WT *)periodics, periodiccnt - 1);
1700 1702
1701 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 1703 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1702} 1704}
1703 1705
1704void 1706void noinline
1705ev_periodic_stop (EV_P_ ev_periodic *w) 1707ev_periodic_stop (EV_P_ ev_periodic *w)
1706{ 1708{
1707 clear_pending (EV_A_ (W)w); 1709 clear_pending (EV_A_ (W)w);
1708 if (expect_false (!ev_is_active (w))) 1710 if (expect_false (!ev_is_active (w)))
1709 return; 1711 return;
1721 } 1723 }
1722 1724
1723 ev_stop (EV_A_ (W)w); 1725 ev_stop (EV_A_ (W)w);
1724} 1726}
1725 1727
1726void 1728void noinline
1727ev_periodic_again (EV_P_ ev_periodic *w) 1729ev_periodic_again (EV_P_ ev_periodic *w)
1728{ 1730{
1729 /* TODO: use adjustheap and recalculation */ 1731 /* TODO: use adjustheap and recalculation */
1730 ev_periodic_stop (EV_A_ w); 1732 ev_periodic_stop (EV_A_ w);
1731 ev_periodic_start (EV_A_ w); 1733 ev_periodic_start (EV_A_ w);
1734 1736
1735#ifndef SA_RESTART 1737#ifndef SA_RESTART
1736# define SA_RESTART 0 1738# define SA_RESTART 0
1737#endif 1739#endif
1738 1740
1739void 1741void noinline
1740ev_signal_start (EV_P_ ev_signal *w) 1742ev_signal_start (EV_P_ ev_signal *w)
1741{ 1743{
1742#if EV_MULTIPLICITY 1744#if EV_MULTIPLICITY
1743 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1745 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1744#endif 1746#endif
1763 sigaction (w->signum, &sa, 0); 1765 sigaction (w->signum, &sa, 0);
1764#endif 1766#endif
1765 } 1767 }
1766} 1768}
1767 1769
1768void 1770void noinline
1769ev_signal_stop (EV_P_ ev_signal *w) 1771ev_signal_stop (EV_P_ ev_signal *w)
1770{ 1772{
1771 clear_pending (EV_A_ (W)w); 1773 clear_pending (EV_A_ (W)w);
1772 if (expect_false (!ev_is_active (w))) 1774 if (expect_false (!ev_is_active (w)))
1773 return; 1775 return;

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines