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Comparing libev/ev.c (file contents):
Revision 1.340 by root, Tue Mar 16 20:39:29 2010 UTC vs.
Revision 1.347 by root, Fri Oct 15 22:44:41 2010 UTC

… …
77# ifndef EV_USE_REALTIME 77# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 78# define EV_USE_REALTIME 0
79# endif 79# endif
80# endif 80# endif
81 81
82# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 83# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP EV_FEATURE_OS 84# define EV_USE_NANOSLEEP EV_FEATURE_OS
85# endif
85# else 86# else
87# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 88# define EV_USE_NANOSLEEP 0
89# endif
90
91# if HAVE_SELECT && HAVE_SYS_SELECT_H
92# ifndef EV_USE_SELECT
93# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 94# endif
95# else
96# undef EV_USE_SELECT
97# define EV_USE_SELECT 0
88# endif 98# endif
89 99
100# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 101# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H
92# define EV_USE_SELECT EV_FEATURE_BACKENDS 102# define EV_USE_POLL EV_FEATURE_BACKENDS
93# else
94# define EV_USE_SELECT 0
95# endif 103# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL EV_FEATURE_BACKENDS
101# else 104# else
105# undef EV_USE_POLL
102# define EV_USE_POLL 0 106# define EV_USE_POLL 0
103# endif
104# endif 107# endif
105 108
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 109# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
110# ifndef EV_USE_EPOLL
108# define EV_USE_EPOLL EV_FEATURE_BACKENDS 111# define EV_USE_EPOLL EV_FEATURE_BACKENDS
109# else
110# define EV_USE_EPOLL 0
111# endif 112# endif
113# else
114# undef EV_USE_EPOLL
115# define EV_USE_EPOLL 0
112# endif 116# endif
113 117
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 118# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
119# ifndef EV_USE_KQUEUE
116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 120# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
117# else
118# define EV_USE_KQUEUE 0
119# endif 121# endif
122# else
123# undef EV_USE_KQUEUE
124# define EV_USE_KQUEUE 0
120# endif 125# endif
121 126
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 127# if HAVE_PORT_H && HAVE_PORT_CREATE
128# ifndef EV_USE_PORT
124# define EV_USE_PORT EV_FEATURE_BACKENDS 129# define EV_USE_PORT EV_FEATURE_BACKENDS
125# else
126# define EV_USE_PORT 0
127# endif 130# endif
131# else
132# undef EV_USE_PORT
133# define EV_USE_PORT 0
128# endif 134# endif
129 135
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 136# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
137# ifndef EV_USE_INOTIFY
132# define EV_USE_INOTIFY EV_FEATURE_OS 138# define EV_USE_INOTIFY EV_FEATURE_OS
133# else
134# define EV_USE_INOTIFY 0
135# endif 139# endif
140# else
141# undef EV_USE_INOTIFY
142# define EV_USE_INOTIFY 0
136# endif 143# endif
137 144
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 145# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
146# ifndef EV_USE_SIGNALFD
140# define EV_USE_SIGNALFD EV_FEATURE_OS 147# define EV_USE_SIGNALFD EV_FEATURE_OS
141# else
142# define EV_USE_SIGNALFD 0
143# endif 148# endif
149# else
150# undef EV_USE_SIGNALFD
151# define EV_USE_SIGNALFD 0
144# endif 152# endif
145 153
154# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 155# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD EV_FEATURE_OS 156# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 157# endif
158# else
159# undef EV_USE_EVENTFD
160# define EV_USE_EVENTFD 0
152# endif 161# endif
153 162
154#endif 163#endif
155 164
156#include <math.h> 165#include <math.h>
… …
186# ifndef EV_SELECT_IS_WINSOCKET 195# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 196# define EV_SELECT_IS_WINSOCKET 1
188# endif 197# endif
189# undef EV_AVOID_STDIO 198# undef EV_AVOID_STDIO
190#endif 199#endif
200
201/* OS X, in its infinite idiocy, actually HARDCODES
202 * a limit of 1024 into their select. Where people have brains,
203 * OS X engineers apparently have a vacuum. Or maybe they were
204 * ordered to have a vacuum, or they do anything for money.
205 * This might help. Or not.
206 */
207#define _DARWIN_UNLIMITED_SELECT 1
191 208
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 209/* this block tries to deduce configuration from header-defined symbols and defaults */
193 210
194/* try to deduce the maximum number of signals on this platform */ 211/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 212#if defined (EV_NSIG)
… …
431# ifdef __cplusplus 448# ifdef __cplusplus
432} 449}
433# endif 450# endif
434#endif 451#endif
435 452
436
437/**/ 453/**/
438 454
439#if EV_VERIFY >= 3 455#if EV_VERIFY >= 3
440# define EV_FREQUENT_CHECK ev_verify (EV_A) 456# define EV_FREQUENT_CHECK ev_verify (EV_A)
441#else 457#else
… …
453#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
454 470
455#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 471#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
456#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 472#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
457 473
474#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
475#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; tv.tv_nsec = (long)((t - tv.tv_sec) * 1e9); } while (0)
476
458#if __GNUC__ >= 4 477#if __GNUC__ >= 4
459# define expect(expr,value) __builtin_expect ((expr),(value)) 478# define expect(expr,value) __builtin_expect ((expr),(value))
460# define noinline __attribute__ ((noinline)) 479# define noinline __attribute__ ((noinline))
461#else 480#else
462# define expect(expr,value) (expr) 481# define expect(expr,value) (expr)
… …
494#define ev_active(w) ((W)(w))->active 513#define ev_active(w) ((W)(w))->active
495#define ev_at(w) ((WT)(w))->at 514#define ev_at(w) ((WT)(w))->at
496 515
497#if EV_USE_REALTIME 516#if EV_USE_REALTIME
498/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 517/* sig_atomic_t is used to avoid per-thread variables or locking but still */
499/* giving it a reasonably high chance of working on typical architetcures */ 518/* giving it a reasonably high chance of working on typical architectures */
500static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 519static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
501#endif 520#endif
502 521
503#if EV_USE_MONOTONIC 522#if EV_USE_MONOTONIC
504static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 523static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
752 if (delay > 0.) 771 if (delay > 0.)
753 { 772 {
754#if EV_USE_NANOSLEEP 773#if EV_USE_NANOSLEEP
755 struct timespec ts; 774 struct timespec ts;
756 775
757 ts.tv_sec = (time_t)delay; 776 EV_SET_TS (ts, delay);
758 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
759
760 nanosleep (&ts, 0); 777 nanosleep (&ts, 0);
761#elif defined(_WIN32) 778#elif defined(_WIN32)
762 Sleep ((unsigned long)(delay * 1e3)); 779 Sleep ((unsigned long)(delay * 1e3));
763#else 780#else
764 struct timeval tv; 781 struct timeval tv;
765 782
766 tv.tv_sec = (time_t)delay;
767 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
768
769 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 783 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
770 /* something not guaranteed by newer posix versions, but guaranteed */ 784 /* something not guaranteed by newer posix versions, but guaranteed */
771 /* by older ones */ 785 /* by older ones */
786 EV_SET_TV (tv, delay);
772 select (0, 0, 0, 0, &tv); 787 select (0, 0, 0, 0, &tv);
773#endif 788#endif
774 } 789 }
775} 790}
776 791
777/*****************************************************************************/ 792/*****************************************************************************/
778 793
779#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 794#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
780 795
781/* find a suitable new size for the given array, */ 796/* find a suitable new size for the given array, */
782/* hopefully by rounding to a ncie-to-malloc size */ 797/* hopefully by rounding to a nice-to-malloc size */
783inline_size int 798inline_size int
784array_nextsize (int elem, int cur, int cnt) 799array_nextsize (int elem, int cur, int cnt)
785{ 800{
786 int ncur = cur + 1; 801 int ncur = cur + 1;
787 802
… …
1054} 1069}
1055 1070
1056/*****************************************************************************/ 1071/*****************************************************************************/
1057 1072
1058/* 1073/*
1059 * the heap functions want a real array index. array index 0 uis guaranteed to not 1074 * the heap functions want a real array index. array index 0 is guaranteed to not
1060 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1075 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1061 * the branching factor of the d-tree. 1076 * the branching factor of the d-tree.
1062 */ 1077 */
1063 1078
1064/* 1079/*
… …
1264 uint64_t counter = 1; 1279 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1280 write (evfd, &counter, sizeof (uint64_t));
1266 } 1281 }
1267 else 1282 else
1268#endif 1283#endif
1284 /* win32 people keep sending patches that change this write() to send() */
1285 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1286 /* so when you think this write should be a send instead, please find out */
1287 /* where your send() is from - it's definitely not the microsoft send, and */
1288 /* tell me. thank you. */
1269 write (evpipe [1], &dummy, 1); 1289 write (evpipe [1], &dummy, 1);
1270 1290
1271 errno = old_errno; 1291 errno = old_errno;
1272 } 1292 }
1273} 1293}
… …
1287 } 1307 }
1288 else 1308 else
1289#endif 1309#endif
1290 { 1310 {
1291 char dummy; 1311 char dummy;
1312 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1292 read (evpipe [0], &dummy, 1); 1313 read (evpipe [0], &dummy, 1);
1293 } 1314 }
1294 1315
1295 if (sig_pending) 1316 if (sig_pending)
1296 { 1317 {
… …
1507#ifdef __APPLE__ 1528#ifdef __APPLE__
1508 /* only select works correctly on that "unix-certified" platform */ 1529 /* only select works correctly on that "unix-certified" platform */
1509 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1530 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1510 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1531 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1511#endif 1532#endif
1533#ifdef __FreeBSD__
1534 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1535#endif
1512 1536
1513 return flags; 1537 return flags;
1514} 1538}
1515 1539
1516unsigned int 1540unsigned int
… …
2096 EV_FREQUENT_CHECK; 2120 EV_FREQUENT_CHECK;
2097 feed_reverse (EV_A_ (W)w); 2121 feed_reverse (EV_A_ (W)w);
2098 } 2122 }
2099 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2123 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2100 2124
2101 feed_reverse_done (EV_A_ EV_TIMEOUT); 2125 feed_reverse_done (EV_A_ EV_TIMER);
2102 } 2126 }
2103} 2127}
2104 2128
2105#if EV_PERIODIC_ENABLE 2129#if EV_PERIODIC_ENABLE
2106/* make periodics pending */ 2130/* make periodics pending */
… …
2159 feed_reverse_done (EV_A_ EV_PERIODIC); 2183 feed_reverse_done (EV_A_ EV_PERIODIC);
2160 } 2184 }
2161} 2185}
2162 2186
2163/* simply recalculate all periodics */ 2187/* simply recalculate all periodics */
2164/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2188/* TODO: maybe ensure that at least one event happens when jumping forward? */
2165static void noinline 2189static void noinline
2166periodics_reschedule (EV_P) 2190periodics_reschedule (EV_P)
2167{ 2191{
2168 int i; 2192 int i;
2169 2193
… …
3636{ 3660{
3637 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3661 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3638 3662
3639 if (expect_false (!once)) 3663 if (expect_false (!once))
3640 { 3664 {
3641 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3665 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3642 return; 3666 return;
3643 } 3667 }
3644 3668
3645 once->cb = cb; 3669 once->cb = cb;
3646 once->arg = arg; 3670 once->arg = arg;

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