72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
|
#include "il2cpp-config.h"
|
||
|
|
|
||
|
|
#if IL2CPP_TARGET_WINDOWS
|
||
|
|
|
||
|
|
#include "os/Time.h"
|
||
|
|
#include "os/Win32/WindowsHeaders.h"
|
||
|
|
#include "utils/MathUtils.h"
|
||
|
|
|
||
|
|
#define MTICKS_PER_SEC 10000000LL
|
||
|
|
|
||
|
|
namespace il2cpp
|
||
|
|
{
|
||
|
|
namespace os
|
||
|
|
{
|
||
|
|
static LARGE_INTEGER s_PerformanceCounterFrequency;
|
||
|
|
|
||
|
|
static inline void InitializePerformanceCounterFrequency()
|
||
|
|
{
|
||
|
|
if (!s_PerformanceCounterFrequency.QuadPart)
|
||
|
|
{
|
||
|
|
// From MSDN: On systems that run Windows XP or later, the function will always succeed and will thus never return zero.
|
||
|
|
// so I'll just assume we never run on older than XP
|
||
|
|
|
||
|
|
BOOL qpfResult = QueryPerformanceFrequency(&s_PerformanceCounterFrequency);
|
||
|
|
IL2CPP_ASSERT(qpfResult != FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t Time::GetTicksMillisecondsMonotonic()
|
||
|
|
{
|
||
|
|
InitializePerformanceCounterFrequency();
|
||
|
|
|
||
|
|
LARGE_INTEGER value;
|
||
|
|
QueryPerformanceCounter(&value);
|
||
|
|
return static_cast<uint32_t>(value.QuadPart * 1000 / s_PerformanceCounterFrequency.QuadPart);
|
||
|
|
}
|
||
|
|
|
||
|
|
int64_t Time::GetTicks100NanosecondsMonotonic()
|
||
|
|
{
|
||
|
|
InitializePerformanceCounterFrequency();
|
||
|
|
|
||
|
|
LARGE_INTEGER value;
|
||
|
|
QueryPerformanceCounter(&value);
|
||
|
|
return utils::MathUtils::A_Times_B_DividedBy_C(value.QuadPart, MTICKS_PER_SEC, s_PerformanceCounterFrequency.QuadPart);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Magic number to convert FILETIME base Jan 1, 1601 to DateTime - base Jan, 1, 0001
|
||
|
|
*/
|
||
|
|
const uint64_t FILETIME_ADJUST = ((uint64_t)504911232000000000LL);
|
||
|
|
|
||
|
|
int64_t Time::GetTicks100NanosecondsDateTime()
|
||
|
|
{
|
||
|
|
ULARGE_INTEGER ft;
|
||
|
|
|
||
|
|
IL2CPP_ASSERT(sizeof(ft) == sizeof(FILETIME));
|
||
|
|
|
||
|
|
::GetSystemTimeAsFileTime((FILETIME*)&ft);
|
||
|
|
return FILETIME_ADJUST + ft.QuadPart;
|
||
|
|
}
|
||
|
|
|
||
|
|
int64_t Time::GetSystemTimeAsFileTime()
|
||
|
|
{
|
||
|
|
int64_t fileTime;
|
||
|
|
::GetSystemTimeAsFileTime(reinterpret_cast<FILETIME*>(&fileTime));
|
||
|
|
return fileTime;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|