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| author | Josh Blum <josh@joshknows.com> | 2011-01-31 15:25:13 -0800 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2011-01-31 15:25:13 -0800 |
| commit | d46058d75c723402d7d135ff309afe4f00deca0c (patch) | |
| tree | c90814d69ef4027a0c5402e855616fc493d959dc | |
| parent | a7d7e0d28925b01044ade6a5b9e288af8828239b (diff) | |
| download | uhd-d46058d75c723402d7d135ff309afe4f00deca0c.tar.gz uhd-d46058d75c723402d7d135ff309afe4f00deca0c.tar.bz2 uhd-d46058d75c723402d7d135ff309afe4f00deca0c.zip | |
uhd: simplify the mach time usage based on example from web
| -rw-r--r-- | host/lib/types/time_spec.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/host/lib/types/time_spec.cpp b/host/lib/types/time_spec.cpp index 312c161cb..ece3b92f3 100644 --- a/host/lib/types/time_spec.cpp +++ b/host/lib/types/time_spec.cpp @@ -47,13 +47,10 @@ time_spec_t time_spec_t::get_system_time(void){ #ifdef TIME_SPEC_USE_MACH_ABSOLUTE_TIME #include <mach/mach_time.h> -static intmax_t get_freq(void){ - mach_timebase_info_data_t info; mach_timebase_info(&info); - return intmax_t(1e9*(double(info.denom)/double(info.numer))); -} time_spec_t time_spec_t::get_system_time(void){ - static const intmax_t freq = get_freq(); - return time_spec_t_from_counts(mach_absolute_time(), freq); + mach_timebase_info_data_t info; mach_timebase_info(&info); + intmax_t nanosecs = mach_absolute_time()*info.numer/info.denom; + return time_spec_t_from_counts(nanosecs, intmax_t(1e9)); } #endif /* TIME_SPEC_USE_MACH_ABSOLUTE_TIME */ |