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os/time: Provide time functions for Windows

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This commit is contained in:
Milan Jaros 2020-07-15 08:49:49 -05:00 committed by Jakob Bornecrantz
parent 7c47293c52
commit 367c01f354
1 changed files with 27 additions and 1 deletions
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28
src/xrt/auxiliary/os/os_time.h
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@ -25,6 +25,10 @@
#define XRT_HAVE_TIMESPEC
#define XRT_HAVE_TIMEVAL
#elif defined(XRT_OS_WINDOWS)
#include <time.h>
#define XRT_HAVE_TIMESPEC
#elif defined(XRT_DOXYGEN)
#include <time.h>
#define XRT_HAVE_TIMESPEC
@ -114,6 +118,28 @@ os_timeval_to_ns(struct timeval *val)
}
#endif // XRT_HAVE_TIMEVAL
#ifdef XRT_OS_WINDOWS
#define CLOCK_MONOTONIC 0
#define CLOCK_REALTIME 1
static int
clock_gettime(int clk_id, struct timespec *spec)
{
__int64 wintime;
//! @todo We should be using QueryPerformanceCounter
GetSystemTimeAsFileTime((FILETIME *)&wintime);
// 1jan1601 to 1jan1970
wintime -= 116444736000000000i64;
// seconds
spec->tv_sec = wintime / 10000000i64;
// nano-seconds
spec->tv_nsec = wintime % 10000000i64 * 100;
return 0;
}
#endif // XRT_OS_WINDOWS
/*!
* @brief Return a monotonic clock in nanoseconds.
@ -122,7 +148,7 @@ os_timeval_to_ns(struct timeval *val)
static inline uint64_t
os_monotonic_get_ns(void)
{
#ifdef XRT_OS_LINUX
#if defined(XRT_OS_LINUX) || defined(XRT_OS_WINDOWS)
struct timespec ts;
int ret = clock_gettime(CLOCK_MONOTONIC, &ts);
if (ret != 0) {