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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*============================================================
**
** Source: Sleep.c
**
** Purpose: Test to establish whether the Sleep function stops the thread from
** executing for the specified times.
**
** Dependencies: GetSystemTime
** Fail
** Trace
**
**
**=========================================================*/
#include <palsuite.h>
DWORD SleepTimes[] =
{
0,
50,
100,
500,
2000
};
/* Milliseconds of error which are acceptable Function execution time, etc. */
DWORD AcceptableTimeError = 150;
int __cdecl main( int argc, char **argv )
{
UINT64 OldTimeStamp;
UINT64 NewTimeStamp;
DWORD MaxDelta;
DWORD TimeDelta;
DWORD i;
if(0 != (PAL_Initialize(argc, argv)))
{
return ( FAIL );
}
LARGE_INTEGER performanceFrequency;
if (!QueryPerformanceFrequency(&performanceFrequency))
{
return FAIL;
}
for( i = 0; i < sizeof(SleepTimes) / sizeof(DWORD); i++)
{
OldTimeStamp = GetHighPrecisionTimeStamp(performanceFrequency);
Sleep(SleepTimes[i]);
NewTimeStamp = GetHighPrecisionTimeStamp(performanceFrequency);
TimeDelta = NewTimeStamp - OldTimeStamp;
/* For longer intervals use a 10 percent tolerance */
if ((SleepTimes[i] * 0.1) > AcceptableTimeError)
{
MaxDelta = SleepTimes[i] + (DWORD)(SleepTimes[i] * 0.1);
}
else
{
MaxDelta = SleepTimes[i] + AcceptableTimeError;
}
if ( TimeDelta<SleepTimes[i] || TimeDelta>MaxDelta )
{
Fail("The sleep function slept for %d ms when it should have "
"slept for %d ms\n", TimeDelta, SleepTimes[i]);
}
}
PAL_Terminate();
return ( PASS );
}
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