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add millisecond resolution timer #1234

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Merged
Simn merged 1 commit into from
Jun 5, 2025
Merged

add millisecond resolution timer #1234

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1 change: 1 addition & 0 deletions include/hx/StdLibs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ Array<unsigned char> __hxcpp_resource_bytes(String inName);
// System access
Array<String> __get_args();
double __time_stamp();
::cpp::Int64 __time_stamp_ms();

HXCPP_EXTERN_CLASS_ATTRIBUTES void __hxcpp_print_string(const String &inV);
HXCPP_EXTERN_CLASS_ATTRIBUTES void __hxcpp_println_string(const String &inV);
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34 changes: 30 additions & 4 deletions src/hx/StdLibs.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -242,8 +242,17 @@ int __hxcpp_irand(int inMax)
return (lo | (mid<<12) | (hi<<24) ) % inMax;
}

#ifdef HX_WINDOWS
LARGE_INTEGER qpcFrequency;
#endif

void __hxcpp_stdlibs_boot()
{
#ifdef HX_WINDOWS
// MSDN states that QueryPerformanceFrequency will always succeed on XP and above, so I'm ignoring the result.
QueryPerformanceFrequency(&qpcFrequency);
#endif

#if defined(_MSC_VER) && !defined(HX_WINRT)
HMODULE kernel32 = LoadLibraryA("kernel32");
if (kernel32)
Expand Down Expand Up @@ -327,10 +336,7 @@ double __time_stamp()
if (t0==0)
{
t0 = now;
__int64 freq;
QueryPerformanceFrequency((LARGE_INTEGER*)&freq);
if (freq!=0)
period = 1.0/freq;
period = 1.0/qpcFrequency.QuadPart;
}
if (period!=0)
return (now-t0)*period;
Expand All @@ -349,6 +355,26 @@ double __time_stamp()
#endif
}

::cpp::Int64 __time_stamp_ms()
{
#ifdef HX_WINDOWS
// MSDN states that QueryPerformanceCounter will always succeed on XP and above, so I'm ignoring the result.
auto now = LARGE_INTEGER{ 0 };
QueryPerformanceCounter(&now);

return now.QuadPart * LONGLONG{ 1000 } / qpcFrequency.QuadPart;
#else
auto time = timespec();

if (clock_gettime(CLOCK_MONOTONIC, &time))
{
throw ::Dynamic(HX_CSTRING("Failed to get the monotonic clock time"));
}

return time.tv_sec * 1000 + (time.tv_nsec / 1000000);
#endif
}

#if defined(HX_WINDOWS) && !defined(HX_WINRT)

/*
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