Mercurial > MadButterfly
annotate include/mb_timer.h @ 795:46a4cd4d382b
Remove dependent on system time to gain frame rate
Date.now() would read system time. It is ineffeciency in for some
implementation. To gain frame rate, we should rely on accuration of
setInterval().
| author | Thinker K.F. Li <thinker@codemud.net> |
|---|---|
| date | Tue, 31 Aug 2010 10:04:15 +0800 |
| parents | 530bb7728546 |
| children | 586e50f82c1f |
| rev | line source |
|---|---|
| 39 | 1 #ifndef __MB_TIMER_H_ |
| 2 #define __MB_TIMER_H_ | |
| 3 | |
| 41 | 4 #include <sys/time.h> |
| 59 | 5 #include <stdint.h> |
| 41 | 6 |
| 39 | 7 typedef uint32_t mbsec_t; |
| 8 typedef uint32_t mbusec_t; | |
| 9 typedef struct _mb_timer mb_timer_t; | |
| 10 typedef struct _mb_tman mb_tman_t; | |
| 41 | 11 typedef struct timeval mb_timeval_t; |
| 39 | 12 |
| 41 | 13 |
| 14 typedef void (*mb_tmo_hdlr)(const mb_timeval_t *tmo, | |
| 15 const mb_timeval_t *now, | |
| 39 | 16 void *arg); |
| 17 | |
| 18 extern mb_tman_t *mb_tman_new(void); | |
| 19 extern void mb_tman_free(mb_tman_t *tman); | |
| 20 extern mb_timer_t *mb_tman_timeout(mb_tman_t *tman, | |
| 41 | 21 const mb_timeval_t *tmo, |
| 39 | 22 mb_tmo_hdlr hdlr, void *arg); |
| 23 extern int mb_tman_remove(mb_tman_t *tman, mb_timer_t *timer); | |
| 24 extern int mb_tman_next_timeout(mb_tman_t *tman, | |
| 41 | 25 const mb_timeval_t *now, |
| 26 mb_timeval_t *tmo_after); | |
| 27 extern int mb_tman_handle_timeout(mb_tman_t *tman, mb_timeval_t *now); | |
| 39 | 28 |
| 41 | 29 #define MB_TIMEVAL_SET(_tv, _sec, _usec) \ |
| 30 do { \ | |
| 31 (_tv)->tv_sec = _sec; \ | |
| 32 (_tv)->tv_usec = _usec; \ | |
| 33 } while(0) | |
|
43
6270230b9248
Use MB_TIMEVAL_CP() instead of memcpy
Thinker K.F. Li <thinker@branda.to>
parents:
41
diff
changeset
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34 #define MB_TIMEVAL_CP(_tv1, _tv2) \ |
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6270230b9248
Use MB_TIMEVAL_CP() instead of memcpy
Thinker K.F. Li <thinker@branda.to>
parents:
41
diff
changeset
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35 do { \ |
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6270230b9248
Use MB_TIMEVAL_CP() instead of memcpy
Thinker K.F. Li <thinker@branda.to>
parents:
41
diff
changeset
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36 (_tv1)->tv_sec = (_tv2)->tv_sec; \ |
|
6270230b9248
Use MB_TIMEVAL_CP() instead of memcpy
Thinker K.F. Li <thinker@branda.to>
parents:
41
diff
changeset
|
37 (_tv1)->tv_usec = (_tv2)->tv_usec; \ |
|
6270230b9248
Use MB_TIMEVAL_CP() instead of memcpy
Thinker K.F. Li <thinker@branda.to>
parents:
41
diff
changeset
|
38 } while(0) |
| 41 | 39 #define MB_TIMEVAL_SEC(_tv) ((_tv)->tv_sec) |
| 40 #define MB_TIMEVAL_USEC(_tv) ((_tv)->tv_usec) | |
| 41 #define MB_TIMEVAL_LATER(a, b) \ | |
| 42 ((a)->tv_sec > (b)->tv_sec || \ | |
| 43 ((a)->tv_sec == (b)->tv_sec && \ | |
| 44 (a)->tv_usec > (b)->tv_usec)) | |
| 46 | 45 #define MB_TIMEVAL_LATER_INC(a, b) \ |
| 46 ((a)->tv_sec > (b)->tv_sec || \ | |
| 47 ((a)->tv_sec == (b)->tv_sec && \ | |
| 48 (a)->tv_usec >= (b)->tv_usec)) | |
| 49 #define MB_TIMEVAL_EQ(a, b) \ | |
| 50 ((a)->tv_sec == (b)->tv_sec && \ | |
| 51 (a)->tv_usec == (b)->tv_usec) | |
| 41 | 52 #define MB_TIMEVAL_DIFF(a, b) \ |
| 53 do { \ | |
| 54 (a)->tv_sec -= (b)->tv_sec; \ | |
| 55 if((a)->tv_usec < (b)->tv_usec) { \ | |
| 56 (a)->tv_sec--; \ | |
| 57 (a)->tv_usec += 1000000; \ | |
| 58 } \ | |
| 59 (a)->tv_usec -= (b)->tv_usec; \ | |
| 60 } while(0) | |
| 61 #define MB_TIMEVAL_ADD(a, b) \ | |
| 62 do { \ | |
| 63 (a)->tv_sec += (b)->tv_sec; \ | |
| 64 (a)->tv_usec += (b)->tv_usec; \ | |
| 65 if((a)->tv_usec >= 1000000) { \ | |
| 66 (a)->tv_sec++; \ | |
| 67 (a)->tv_usec -= 1000000; \ | |
| 68 } \ | |
| 69 } while(0) | |
|
155
6749f6639924
Fix bug for STAILQ that fail to remove a node.
Thinker K.F. Li <thinker@branda.to>
parents:
77
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changeset
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70 #define MB_TIMEVAL_DIV(a, b) \ |
|
6749f6639924
Fix bug for STAILQ that fail to remove a node.
Thinker K.F. Li <thinker@branda.to>
parents:
77
diff
changeset
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71 (((a)->tv_sec * 1000000.0 + (a)->tv_usec) / \ |
|
6749f6639924
Fix bug for STAILQ that fail to remove a node.
Thinker K.F. Li <thinker@branda.to>
parents:
77
diff
changeset
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72 ((b)->tv_sec * 1000000.0 + (b)->tv_usec)) |
| 39 | 73 |
| 74 | |
| 77 | 75 extern void get_now(mb_timeval_t *tmo); |
| 76 | |
| 77 | |
| 39 | 78 #endif /* __MB_TIMER_H_ */ |