60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
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SST_Time_MacOSX.c
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Author: Patrick Baggett <ptbaggett@762studios.com>
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Created: 5/30/2013
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Purpose:
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libsst-os timing functions for MacOSX systems
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License:
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This program is free software. It comes without any warranty, to
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the extent permitted by applicable law. You can redistribute it
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and/or modify it under the terms of the Do What The Fuck You Want
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To Public License, Version 2, as published by Sam Hocevar. See
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http://sam.zoy.org/wtfpl/COPYING for more details.
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*/
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#include <SST/SST_Time.h>
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#include <mach/mach_time.h>
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/******************************************************************************/
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static mach_timebase_info_data_t info;
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/******************************************************************************/
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int __libsst_init_time()
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{
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return (mach_timebase_info(&info) == KERN_SUCCESS);
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}
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/******************************************************************************/
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static uint64_t absToNsec(uint64_t abstime)
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{
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return abstime * info.numer / info.denom;
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}
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/******************************************************************************/
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uint64_t SST_OS_GetMicroTime()
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{
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return absToNsec(mach_absolute_time()) / 1000;
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}
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/******************************************************************************/
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uint64_t SST_OS_GetMilliTime()
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{
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return absToNsec(mach_absolute_time()) / 1000000;
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}
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/******************************************************************************/
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double SST_OS_GetFloatingTime()
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{
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return absToNsec(mach_absolute_time()) / 1000000000.0;
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} |