Mercurial > MadButterfly
annotate src/timertool.c @ 509:3e0d63d7c7ae Android_Skia
Remove absolute pathes from config.cache.
Absolute pathes in config.cache would be the source of problems when
the source tree of Android is different from what is in config.cache.
So, these cached values are removed and re-computed when running
configure.
| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Tue, 01 Dec 2009 22:55:27 +0800 |
| parents | 530bb7728546 |
| children | 586e50f82c1f |
| rev | line source |
|---|---|
|
92
3f619ae03678
Improve calcuator example program.
Thinker K.F. Li <thinker@branda.to>
parents:
78
diff
changeset
|
1 #include <stdio.h> |
| 77 | 2 #include <sys/time.h> |
| 3 #ifdef __FreeBSD__ | |
| 4 #include <machine/cpufunc.h> | |
| 5 #include <sys/types.h> | |
| 6 #include <sys/sysctl.h> | |
| 7 #endif | |
|
186
530bb7728546
Move header files to $(top_srcdir)/include/ and prefixed with 'mb_'.
Thinker K.F. Li <thinker@branda.to>
parents:
185
diff
changeset
|
8 #include "mb_timer.h" |
| 77 | 9 |
| 10 | |
| 11 #ifdef __FreeBSD__ | |
| 12 void get_now(mb_timeval_t *tmo) { | |
| 13 struct timeval tv; | |
| 14 static uint64_t cpufreq; | |
| 120 | 15 static uint64_t diff; |
| 77 | 16 static mb_timeval_t tm = {0, 0}; |
| 17 static uint64_t last_ts; | |
| 18 mb_timeval_t diff_tm; | |
| 120 | 19 uint64_t ts, udiff, sdiff; |
| 77 | 20 size_t sysctl_sz; |
| 78 | 21 int r; |
| 77 | 22 |
| 23 if(MB_TIMEVAL_SEC(&tm) == 0) { | |
| 24 sysctl_sz = sizeof(uint64_t); | |
| 78 | 25 r = sysctlbyname("kern.timecounter.tc.TSC.frequency", |
| 26 &cpufreq, &sysctl_sz, | |
| 27 NULL, 0); | |
| 28 if(r == -1) { | |
| 29 perror("sysctl"); | |
| 30 return; | |
| 31 } | |
| 77 | 32 |
| 33 gettimeofday(&tv, NULL); | |
| 34 last_ts = rdtsc(); | |
| 35 | |
| 36 MB_TIMEVAL_SET(tmo, tv.tv_sec, tv.tv_usec); | |
| 37 MB_TIMEVAL_CP(&tm, tmo); | |
| 38 diff = 0; | |
| 39 } else { | |
| 40 ts = rdtsc(); | |
| 120 | 41 diff += ts - last_ts; |
| 77 | 42 sdiff = diff / cpufreq; |
| 43 udiff = (diff % cpufreq) * 1000000 / cpufreq; | |
| 44 | |
| 45 MB_TIMEVAL_SET(&diff_tm, sdiff, udiff); | |
| 46 MB_TIMEVAL_CP(tmo, &tm); | |
| 47 MB_TIMEVAL_ADD(tmo, &diff_tm); | |
| 48 | |
| 49 MB_TIMEVAL_SET(&diff_tm, sdiff, 0); | |
| 50 MB_TIMEVAL_ADD(&tm, &diff_tm); | |
| 51 | |
| 120 | 52 diff %= cpufreq; |
| 53 last_ts = ts; | |
| 77 | 54 } |
| 55 } | |
| 56 #else /* __FreeBSD__ */ | |
| 57 void get_now(mb_timeval_t *tmo) { | |
| 58 struct timeval tv; | |
| 59 | |
| 60 gettimeofday(&tv, NULL); | |
| 61 MB_TIMEVAL_SET(tmo, tv.tv_sec, tv.tv_usec); | |
| 62 } | |
| 63 #endif /* __FreeBSD__ */ | |
| 64 |