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Comparing libev/ev.c (file contents):
Revision 1.144 by root, Tue Nov 27 08:11:52 2007 UTC vs.
Revision 1.156 by root, Wed Nov 28 17:50:13 2007 UTC

… …
94# else 94# else
95# define EV_USE_PORT 0 95# define EV_USE_PORT 0
96# endif 96# endif
97# endif 97# endif
98 98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
105# endif
106
99#endif 107#endif
100 108
101#include <math.h> 109#include <math.h>
102#include <stdlib.h> 110#include <stdlib.h>
103#include <fcntl.h> 111#include <fcntl.h>
… …
109#include <errno.h> 117#include <errno.h>
110#include <sys/types.h> 118#include <sys/types.h>
111#include <time.h> 119#include <time.h>
112 120
113#include <signal.h> 121#include <signal.h>
122
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
114 128
115#ifndef _WIN32 129#ifndef _WIN32
116# include <sys/time.h> 130# include <sys/time.h>
117# include <sys/wait.h> 131# include <sys/wait.h>
118# include <unistd.h> 132# include <unistd.h>
… …
156 170
157#ifndef EV_USE_PORT 171#ifndef EV_USE_PORT
158# define EV_USE_PORT 0 172# define EV_USE_PORT 0
159#endif 173#endif
160 174
175#ifndef EV_USE_INOTIFY
176# define EV_USE_INOTIFY 0
177#endif
178
179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
182# else
183# define EV_PID_HASHSIZE 16
184# endif
185#endif
186
187#ifndef EV_INOTIFY_HASHSIZE
188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
193#endif
194
161/**/ 195/**/
162 196
163#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
164# undef EV_USE_MONOTONIC 198# undef EV_USE_MONOTONIC
165# define EV_USE_MONOTONIC 0 199# define EV_USE_MONOTONIC 0
… …
172 206
173#if EV_SELECT_IS_WINSOCKET 207#if EV_SELECT_IS_WINSOCKET
174# include <winsock.h> 208# include <winsock.h>
175#endif 209#endif
176 210
211#if !EV_STAT_ENABLE
212# define EV_USE_INOTIFY 0
213#endif
214
215#if EV_USE_INOTIFY
216# include <sys/inotify.h>
217#endif
218
177/**/ 219/**/
178 220
179#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 221#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
180#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) */
181#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182/*#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 */
183
184#ifdef EV_H
185# include EV_H
186#else
187# include "ev.h"
188#endif
189 224
190#if __GNUC__ >= 3 225#if __GNUC__ >= 3
191# define expect(expr,value) __builtin_expect ((expr),(value)) 226# define expect(expr,value) __builtin_expect ((expr),(value))
192# define inline_size static inline /* inline for codesize */ 227# define inline_size static inline /* inline for codesize */
193# if EV_MINIMAL 228# if EV_MINIMAL
… …
198# define inline_speed static inline 233# define inline_speed static inline
199# endif 234# endif
200#else 235#else
201# define expect(expr,value) (expr) 236# define expect(expr,value) (expr)
202# define inline_speed static 237# define inline_speed static
203# define inline_minimal static 238# define inline_size static
204# define noinline 239# define noinline
205#endif 240#endif
206 241
207#define expect_false(expr) expect ((expr) != 0, 0) 242#define expect_false(expr) expect ((expr) != 0, 0)
208#define expect_true(expr) expect ((expr) != 0, 1) 243#define expect_true(expr) expect ((expr) != 0, 1)
… …
254ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, long size))
255{ 290{
256 alloc = cb; 291 alloc = cb;
257} 292}
258 293
259static void * 294inline_speed void *
260ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, long size)
261{ 296{
262 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
263 298
264 if (!ptr && size) 299 if (!ptr && size)
… …
288typedef struct 323typedef struct
289{ 324{
290 W w; 325 W w;
291 int events; 326 int events;
292} ANPENDING; 327} ANPENDING;
328
329#if EV_USE_INOTIFY
330typedef struct
331{
332 WL head;
333} ANFS;
334#endif
293 335
294#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
295 337
296 struct ev_loop 338 struct ev_loop
297 { 339 {
… …
709 ev_unref (EV_A); /* child watcher should not keep loop alive */ 751 ev_unref (EV_A); /* child watcher should not keep loop alive */
710} 752}
711 753
712/*****************************************************************************/ 754/*****************************************************************************/
713 755
714static ev_child *childs [PID_HASHSIZE]; 756static ev_child *childs [EV_PID_HASHSIZE];
715 757
716#ifndef _WIN32 758#ifndef _WIN32
717 759
718static ev_signal childev; 760static ev_signal childev;
719 761
720void inline_speed 762void inline_speed
721child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 763child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
722{ 764{
723 ev_child *w; 765 ev_child *w;
724 766
725 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 767 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
726 if (w->pid == pid || !w->pid) 768 if (w->pid == pid || !w->pid)
727 { 769 {
728 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 770 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
729 w->rpid = pid; 771 w->rpid = pid;
730 w->rstatus = status; 772 w->rstatus = status;
… …
751 /* make sure we are called again until all childs have been reaped */ 793 /* make sure we are called again until all childs have been reaped */
752 /* we need to do it this way so that the callback gets called before we continue */ 794 /* we need to do it this way so that the callback gets called before we continue */
753 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 795 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
754 796
755 child_reap (EV_A_ sw, pid, pid, status); 797 child_reap (EV_A_ sw, pid, pid, status);
798 if (EV_PID_HASHSIZE > 1)
756 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 799 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
757} 800}
758 801
759#endif 802#endif
760 803
761/*****************************************************************************/ 804/*****************************************************************************/
… …
844ev_backend (EV_P) 887ev_backend (EV_P)
845{ 888{
846 return backend; 889 return backend;
847} 890}
848 891
849static void 892static void noinline
850loop_init (EV_P_ unsigned int flags) 893loop_init (EV_P_ unsigned int flags)
851{ 894{
852 if (!backend) 895 if (!backend)
853 { 896 {
854#if EV_USE_MONOTONIC 897#if EV_USE_MONOTONIC
… …
871 914
872 if (!(flags & 0x0000ffffUL)) 915 if (!(flags & 0x0000ffffUL))
873 flags |= ev_recommended_backends (); 916 flags |= ev_recommended_backends ();
874 917
875 backend = 0; 918 backend = 0;
919 backend_fd = -1;
920#if EV_USE_INOTIFY
921 fs_fd = -2;
922#endif
923
876#if EV_USE_PORT 924#if EV_USE_PORT
877 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 925 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
878#endif 926#endif
879#if EV_USE_KQUEUE 927#if EV_USE_KQUEUE
880 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 928 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
892 ev_init (&sigev, sigcb); 940 ev_init (&sigev, sigcb);
893 ev_set_priority (&sigev, EV_MAXPRI); 941 ev_set_priority (&sigev, EV_MAXPRI);
894 } 942 }
895} 943}
896 944
897static void 945static void noinline
898loop_destroy (EV_P) 946loop_destroy (EV_P)
899{ 947{
900 int i; 948 int i;
949
950#if EV_USE_INOTIFY
951 if (fs_fd >= 0)
952 close (fs_fd);
953#endif
954
955 if (backend_fd >= 0)
956 close (backend_fd);
901 957
902#if EV_USE_PORT 958#if EV_USE_PORT
903 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 959 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
904#endif 960#endif
905#if EV_USE_KQUEUE 961#if EV_USE_KQUEUE
… …
929 array_free (check, EMPTY0); 985 array_free (check, EMPTY0);
930 986
931 backend = 0; 987 backend = 0;
932} 988}
933 989
934static void 990void inline_size infy_fork (EV_P);
991
992void inline_size
935loop_fork (EV_P) 993loop_fork (EV_P)
936{ 994{
937#if EV_USE_PORT 995#if EV_USE_PORT
938 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 996 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
939#endif 997#endif
940#if EV_USE_KQUEUE 998#if EV_USE_KQUEUE
941 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 999 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
942#endif 1000#endif
943#if EV_USE_EPOLL 1001#if EV_USE_EPOLL
944 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1002 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1003#endif
1004#if EV_USE_INOTIFY
1005 infy_fork (EV_A);
945#endif 1006#endif
946 1007
947 if (ev_is_active (&sigev)) 1008 if (ev_is_active (&sigev))
948 { 1009 {
949 /* default loop */ 1010 /* default loop */
… …
1089 { 1150 {
1090 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1151 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1091 1152
1092 if (expect_true (p->w)) 1153 if (expect_true (p->w))
1093 { 1154 {
1094 assert (("non-pending watcher on pending list", p->w->pending)); 1155 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1095 1156
1096 p->w->pending = 0; 1157 p->w->pending = 0;
1097 EV_CB_INVOKE (p->w, p->events); 1158 EV_CB_INVOKE (p->w, p->events);
1098 } 1159 }
1099 } 1160 }
… …
1104{ 1165{
1105 while (timercnt && ((WT)timers [0])->at <= mn_now) 1166 while (timercnt && ((WT)timers [0])->at <= mn_now)
1106 { 1167 {
1107 ev_timer *w = timers [0]; 1168 ev_timer *w = timers [0];
1108 1169
1109 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1170 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1110 1171
1111 /* first reschedule or stop timer */ 1172 /* first reschedule or stop timer */
1112 if (w->repeat) 1173 if (w->repeat)
1113 { 1174 {
1114 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1175 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
… …
1132{ 1193{
1133 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1194 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1134 { 1195 {
1135 ev_periodic *w = periodics [0]; 1196 ev_periodic *w = periodics [0];
1136 1197
1137 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1198 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1138 1199
1139 /* first reschedule or stop timer */ 1200 /* first reschedule or stop timer */
1140 if (w->reschedule_cb) 1201 if (w->reschedule_cb)
1141 { 1202 {
1142 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1203 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
… …
1276 ? EVUNLOOP_ONE 1337 ? EVUNLOOP_ONE
1277 : EVUNLOOP_CANCEL; 1338 : EVUNLOOP_CANCEL;
1278 1339
1279 while (activecnt) 1340 while (activecnt)
1280 { 1341 {
1342 /* we might have forked, so reify kernel state if necessary */
1343 #if EV_FORK_ENABLE
1344 if (expect_false (postfork))
1345 if (forkcnt)
1346 {
1347 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1348 call_pending (EV_A);
1349 }
1350 #endif
1351
1281 /* queue check watchers (and execute them) */ 1352 /* queue check watchers (and execute them) */
1282 if (expect_false (preparecnt)) 1353 if (expect_false (preparecnt))
1283 { 1354 {
1284 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1355 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1285 call_pending (EV_A); 1356 call_pending (EV_A);
… …
1464 ev_start (EV_A_ (W)w, ++timercnt); 1535 ev_start (EV_A_ (W)w, ++timercnt);
1465 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1536 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1466 timers [timercnt - 1] = w; 1537 timers [timercnt - 1] = w;
1467 upheap ((WT *)timers, timercnt - 1); 1538 upheap ((WT *)timers, timercnt - 1);
1468 1539
1469 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1540 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1470} 1541}
1471 1542
1472void 1543void
1473ev_timer_stop (EV_P_ ev_timer *w) 1544ev_timer_stop (EV_P_ ev_timer *w)
1474{ 1545{
… …
1476 if (expect_false (!ev_is_active (w))) 1547 if (expect_false (!ev_is_active (w)))
1477 return; 1548 return;
1478 1549
1479 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1550 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1480 1551
1552 {
1553 int active = ((W)w)->active;
1554
1481 if (expect_true (((W)w)->active < timercnt--)) 1555 if (expect_true (--active < --timercnt))
1482 { 1556 {
1483 timers [((W)w)->active - 1] = timers [timercnt]; 1557 timers [active] = timers [timercnt];
1484 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1558 adjustheap ((WT *)timers, timercnt, active);
1485 } 1559 }
1560 }
1486 1561
1487 ((WT)w)->at -= mn_now; 1562 ((WT)w)->at -= mn_now;
1488 1563
1489 ev_stop (EV_A_ (W)w); 1564 ev_stop (EV_A_ (W)w);
1490} 1565}
… …
1528 ev_start (EV_A_ (W)w, ++periodiccnt); 1603 ev_start (EV_A_ (W)w, ++periodiccnt);
1529 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1604 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1530 periodics [periodiccnt - 1] = w; 1605 periodics [periodiccnt - 1] = w;
1531 upheap ((WT *)periodics, periodiccnt - 1); 1606 upheap ((WT *)periodics, periodiccnt - 1);
1532 1607
1533 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1608 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1534} 1609}
1535 1610
1536void 1611void
1537ev_periodic_stop (EV_P_ ev_periodic *w) 1612ev_periodic_stop (EV_P_ ev_periodic *w)
1538{ 1613{
… …
1540 if (expect_false (!ev_is_active (w))) 1615 if (expect_false (!ev_is_active (w)))
1541 return; 1616 return;
1542 1617
1543 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1618 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1544 1619
1620 {
1621 int active = ((W)w)->active;
1622
1545 if (expect_true (((W)w)->active < periodiccnt--)) 1623 if (expect_true (--active < --periodiccnt))
1546 { 1624 {
1547 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1625 periodics [active] = periodics [periodiccnt];
1548 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1626 adjustheap ((WT *)periodics, periodiccnt, active);
1549 } 1627 }
1628 }
1550 1629
1551 ev_stop (EV_A_ (W)w); 1630 ev_stop (EV_A_ (W)w);
1552} 1631}
1553 1632
1554void 1633void
… …
1615#endif 1694#endif
1616 if (expect_false (ev_is_active (w))) 1695 if (expect_false (ev_is_active (w)))
1617 return; 1696 return;
1618 1697
1619 ev_start (EV_A_ (W)w, 1); 1698 ev_start (EV_A_ (W)w, 1);
1620 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1699 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1621} 1700}
1622 1701
1623void 1702void
1624ev_child_stop (EV_P_ ev_child *w) 1703ev_child_stop (EV_P_ ev_child *w)
1625{ 1704{
1626 ev_clear_pending (EV_A_ (W)w); 1705 ev_clear_pending (EV_A_ (W)w);
1627 if (expect_false (!ev_is_active (w))) 1706 if (expect_false (!ev_is_active (w)))
1628 return; 1707 return;
1629 1708
1630 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1709 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1631 ev_stop (EV_A_ (W)w); 1710 ev_stop (EV_A_ (W)w);
1632} 1711}
1633 1712
1634#if EV_STAT_ENABLE 1713#if EV_STAT_ENABLE
1635 1714
1636# ifdef _WIN32 1715# ifdef _WIN32
1716# undef lstat
1637# define lstat(a,b) stat(a,b) 1717# define lstat(a,b) _stati64 (a,b)
1638# endif 1718# endif
1639 1719
1640#define DEF_STAT_INTERVAL 5.0074891 1720#define DEF_STAT_INTERVAL 5.0074891
1641#define MIN_STAT_INTERVAL 0.1074891 1721#define MIN_STAT_INTERVAL 0.1074891
1722
1723void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1724
1725#if EV_USE_INOTIFY
1726# define EV_INOTIFY_BUFSIZE 8192
1727
1728static void noinline
1729infy_add (EV_P_ ev_stat *w)
1730{
1731 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
1732
1733 if (w->wd < 0)
1734 {
1735 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1736
1737 /* monitor some parent directory for speedup hints */
1738 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1739 {
1740 char path [4096];
1741 strcpy (path, w->path);
1742
1743 do
1744 {
1745 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1746 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1747
1748 char *pend = strrchr (path, '/');
1749
1750 if (!pend)
1751 break; /* whoops, no '/', complain to your admin */
1752
1753 *pend = 0;
1754 w->wd = inotify_add_watch (fs_fd, path, mask);
1755 }
1756 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1757 }
1758 }
1759 else
1760 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1761
1762 if (w->wd >= 0)
1763 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1764}
1765
1766static void noinline
1767infy_del (EV_P_ ev_stat *w)
1768{
1769 int slot;
1770 int wd = w->wd;
1771
1772 if (wd < 0)
1773 return;
1774
1775 w->wd = -2;
1776 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1777 wlist_del (&fs_hash [slot].head, (WL)w);
1778
1779 /* remove this watcher, if others are watching it, they will rearm */
1780 inotify_rm_watch (fs_fd, wd);
1781}
1782
1783static void noinline
1784infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1785{
1786 if (slot < 0)
1787 /* overflow, need to check for all hahs slots */
1788 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1789 infy_wd (EV_A_ slot, wd, ev);
1790 else
1791 {
1792 WL w_;
1793
1794 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1795 {
1796 ev_stat *w = (ev_stat *)w_;
1797 w_ = w_->next; /* lets us remove this watcher and all before it */
1798
1799 if (w->wd == wd || wd == -1)
1800 {
1801 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1802 {
1803 w->wd = -1;
1804 infy_add (EV_A_ w); /* re-add, no matter what */
1805 }
1806
1807 stat_timer_cb (EV_A_ &w->timer, 0);
1808 }
1809 }
1810 }
1811}
1812
1813static void
1814infy_cb (EV_P_ ev_io *w, int revents)
1815{
1816 char buf [EV_INOTIFY_BUFSIZE];
1817 struct inotify_event *ev = (struct inotify_event *)buf;
1818 int ofs;
1819 int len = read (fs_fd, buf, sizeof (buf));
1820
1821 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1822 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1823}
1824
1825void inline_size
1826infy_init (EV_P)
1827{
1828 if (fs_fd != -2)
1829 return;
1830
1831 fs_fd = inotify_init ();
1832
1833 if (fs_fd >= 0)
1834 {
1835 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1836 ev_set_priority (&fs_w, EV_MAXPRI);
1837 ev_io_start (EV_A_ &fs_w);
1838 }
1839}
1840
1841void inline_size
1842infy_fork (EV_P)
1843{
1844 int slot;
1845
1846 if (fs_fd < 0)
1847 return;
1848
1849 close (fs_fd);
1850 fs_fd = inotify_init ();
1851
1852 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1853 {
1854 WL w_ = fs_hash [slot].head;
1855 fs_hash [slot].head = 0;
1856
1857 while (w_)
1858 {
1859 ev_stat *w = (ev_stat *)w_;
1860 w_ = w_->next; /* lets us add this watcher */
1861
1862 w->wd = -1;
1863
1864 if (fs_fd >= 0)
1865 infy_add (EV_A_ w); /* re-add, no matter what */
1866 else
1867 ev_timer_start (EV_A_ &w->timer);
1868 }
1869
1870 }
1871}
1872
1873#endif
1642 1874
1643void 1875void
1644ev_stat_stat (EV_P_ ev_stat *w) 1876ev_stat_stat (EV_P_ ev_stat *w)
1645{ 1877{
1646 if (lstat (w->path, &w->attr) < 0) 1878 if (lstat (w->path, &w->attr) < 0)
1647 w->attr.st_nlink = 0; 1879 w->attr.st_nlink = 0;
1648 else if (!w->attr.st_nlink) 1880 else if (!w->attr.st_nlink)
1649 w->attr.st_nlink = 1; 1881 w->attr.st_nlink = 1;
1650} 1882}
1651 1883
1652static void 1884void noinline
1653stat_timer_cb (EV_P_ ev_timer *w_, int revents) 1885stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1654{ 1886{
1655 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 1887 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1656 1888
1657 /* we copy this here each the time so that */ 1889 /* we copy this here each the time so that */
1658 /* prev has the old value when the callback gets invoked */ 1890 /* prev has the old value when the callback gets invoked */
1659 w->prev = w->attr; 1891 w->prev = w->attr;
1660 ev_stat_stat (EV_A_ w); 1892 ev_stat_stat (EV_A_ w);
1661 1893
1662 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) 1894 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1895 if (
1896 w->prev.st_dev != w->attr.st_dev
1897 || w->prev.st_ino != w->attr.st_ino
1898 || w->prev.st_mode != w->attr.st_mode
1899 || w->prev.st_nlink != w->attr.st_nlink
1900 || w->prev.st_uid != w->attr.st_uid
1901 || w->prev.st_gid != w->attr.st_gid
1902 || w->prev.st_rdev != w->attr.st_rdev
1903 || w->prev.st_size != w->attr.st_size
1904 || w->prev.st_atime != w->attr.st_atime
1905 || w->prev.st_mtime != w->attr.st_mtime
1906 || w->prev.st_ctime != w->attr.st_ctime
1907 ) {
1908 #if EV_USE_INOTIFY
1909 infy_del (EV_A_ w);
1910 infy_add (EV_A_ w);
1911 ev_stat_stat (EV_A_ w); /* avoid race... */
1912 #endif
1913
1663 ev_feed_event (EV_A_ w, EV_STAT); 1914 ev_feed_event (EV_A_ w, EV_STAT);
1915 }
1664} 1916}
1665 1917
1666void 1918void
1667ev_stat_start (EV_P_ ev_stat *w) 1919ev_stat_start (EV_P_ ev_stat *w)
1668{ 1920{
… …
1678 if (w->interval < MIN_STAT_INTERVAL) 1930 if (w->interval < MIN_STAT_INTERVAL)
1679 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; 1931 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1680 1932
1681 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 1933 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1682 ev_set_priority (&w->timer, ev_priority (w)); 1934 ev_set_priority (&w->timer, ev_priority (w));
1935
1936#if EV_USE_INOTIFY
1937 infy_init (EV_A);
1938
1939 if (fs_fd >= 0)
1940 infy_add (EV_A_ w);
1941 else
1942#endif
1683 ev_timer_start (EV_A_ &w->timer); 1943 ev_timer_start (EV_A_ &w->timer);
1684 1944
1685 ev_start (EV_A_ (W)w, 1); 1945 ev_start (EV_A_ (W)w, 1);
1686} 1946}
1687 1947
1688void 1948void
… …
1690{ 1950{
1691 ev_clear_pending (EV_A_ (W)w); 1951 ev_clear_pending (EV_A_ (W)w);
1692 if (expect_false (!ev_is_active (w))) 1952 if (expect_false (!ev_is_active (w)))
1693 return; 1953 return;
1694 1954
1955#if EV_USE_INOTIFY
1956 infy_del (EV_A_ w);
1957#endif
1695 ev_timer_stop (EV_A_ &w->timer); 1958 ev_timer_stop (EV_A_ &w->timer);
1696 1959
1697 ev_stop (EV_A_ (W)w); 1960 ev_stop (EV_A_ (W)w);
1698} 1961}
1699#endif 1962#endif
… …
1826 2089
1827 ev_stop (EV_A_ (W)w); 2090 ev_stop (EV_A_ (W)w);
1828} 2091}
1829#endif 2092#endif
1830 2093
2094#if EV_FORK_ENABLE
2095void
2096ev_fork_start (EV_P_ ev_fork *w)
2097{
2098 if (expect_false (ev_is_active (w)))
2099 return;
2100
2101 ev_start (EV_A_ (W)w, ++forkcnt);
2102 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2103 forks [forkcnt - 1] = w;
2104}
2105
2106void
2107ev_fork_stop (EV_P_ ev_fork *w)
2108{
2109 ev_clear_pending (EV_A_ (W)w);
2110 if (expect_false (!ev_is_active (w)))
2111 return;
2112
2113 {
2114 int active = ((W)w)->active;
2115 forks [active - 1] = forks [--forkcnt];
2116 ((W)forks [active - 1])->active = active;
2117 }
2118
2119 ev_stop (EV_A_ (W)w);
2120}
2121#endif
2122
1831/*****************************************************************************/ 2123/*****************************************************************************/
1832 2124
1833struct ev_once 2125struct ev_once
1834{ 2126{
1835 ev_io io; 2127 ev_io io;

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