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Comparing libev/ev.c (file contents):
Revision 1.344 by root, Fri Jul 9 20:55:14 2010 UTC vs.
Revision 1.349 by sf-exg, Fri Oct 15 22:59:59 2010 UTC

… …
448# ifdef __cplusplus 448# ifdef __cplusplus
449} 449}
450# endif 450# endif
451#endif 451#endif
452 452
453
454/**/ 453/**/
455 454
456#if EV_VERIFY >= 3 455#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 456# define EV_FREQUENT_CHECK ev_verify (EV_A)
458#else 457#else
… …
470#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
471 470
472#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) */
473#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) */
474 473
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; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
476
475#if __GNUC__ >= 4 477#if __GNUC__ >= 4
476# define expect(expr,value) __builtin_expect ((expr),(value)) 478# define expect(expr,value) __builtin_expect ((expr),(value))
477# define noinline __attribute__ ((noinline)) 479# define noinline __attribute__ ((noinline))
478#else 480#else
479# define expect(expr,value) (expr) 481# define expect(expr,value) (expr)
… …
511#define ev_active(w) ((W)(w))->active 513#define ev_active(w) ((W)(w))->active
512#define ev_at(w) ((WT)(w))->at 514#define ev_at(w) ((WT)(w))->at
513 515
514#if EV_USE_REALTIME 516#if EV_USE_REALTIME
515/* 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 */
516/* giving it a reasonably high chance of working on typical architetcures */ 518/* giving it a reasonably high chance of working on typical architectures */
517static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 519static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
518#endif 520#endif
519 521
520#if EV_USE_MONOTONIC 522#if EV_USE_MONOTONIC
521static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 523static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
769 if (delay > 0.) 771 if (delay > 0.)
770 { 772 {
771#if EV_USE_NANOSLEEP 773#if EV_USE_NANOSLEEP
772 struct timespec ts; 774 struct timespec ts;
773 775
774 ts.tv_sec = (time_t)delay; 776 EV_TS_SET (ts, delay);
775 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
776
777 nanosleep (&ts, 0); 777 nanosleep (&ts, 0);
778#elif defined(_WIN32) 778#elif defined(_WIN32)
779 Sleep ((unsigned long)(delay * 1e3)); 779 Sleep ((unsigned long)(delay * 1e3));
780#else 780#else
781 struct timeval tv; 781 struct timeval tv;
782 782
783 tv.tv_sec = (time_t)delay;
784 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
785
786 /* 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 */
787 /* something not guaranteed by newer posix versions, but guaranteed */ 784 /* something not guaranteed by newer posix versions, but guaranteed */
788 /* by older ones */ 785 /* by older ones */
786 EV_TV_SET (tv, delay);
789 select (0, 0, 0, 0, &tv); 787 select (0, 0, 0, 0, &tv);
790#endif 788#endif
791 } 789 }
792} 790}
793 791
794/*****************************************************************************/ 792/*****************************************************************************/
795 793
796#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 */
797 795
798/* find a suitable new size for the given array, */ 796/* find a suitable new size for the given array, */
799/* hopefully by rounding to a ncie-to-malloc size */ 797/* hopefully by rounding to a nice-to-malloc size */
800inline_size int 798inline_size int
801array_nextsize (int elem, int cur, int cnt) 799array_nextsize (int elem, int cur, int cnt)
802{ 800{
803 int ncur = cur + 1; 801 int ncur = cur + 1;
804 802
… …
1071} 1069}
1072 1070
1073/*****************************************************************************/ 1071/*****************************************************************************/
1074 1072
1075/* 1073/*
1076 * 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
1077 * 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
1078 * the branching factor of the d-tree. 1076 * the branching factor of the d-tree.
1079 */ 1077 */
1080 1078
1081/* 1079/*
… …
1281 uint64_t counter = 1; 1279 uint64_t counter = 1;
1282 write (evfd, &counter, sizeof (uint64_t)); 1280 write (evfd, &counter, sizeof (uint64_t));
1283 } 1281 }
1284 else 1282 else
1285#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. */
1286 write (evpipe [1], &dummy, 1); 1289 write (evpipe [1], &dummy, 1);
1287 1290
1288 errno = old_errno; 1291 errno = old_errno;
1289 } 1292 }
1290} 1293}
… …
1304 } 1307 }
1305 else 1308 else
1306#endif 1309#endif
1307 { 1310 {
1308 char dummy; 1311 char dummy;
1312 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1309 read (evpipe [0], &dummy, 1); 1313 read (evpipe [0], &dummy, 1);
1310 } 1314 }
1311 1315
1312 if (sig_pending) 1316 if (sig_pending)
1313 { 1317 {
… …
2179 feed_reverse_done (EV_A_ EV_PERIODIC); 2183 feed_reverse_done (EV_A_ EV_PERIODIC);
2180 } 2184 }
2181} 2185}
2182 2186
2183/* simply recalculate all periodics */ 2187/* simply recalculate all periodics */
2184/* 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? */
2185static void noinline 2189static void noinline
2186periodics_reschedule (EV_P) 2190periodics_reschedule (EV_P)
2187{ 2191{
2188 int i; 2192 int i;
2189 2193

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