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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
/*=====================================================================
**
** Source: test1.c
**
** Purpose: Tests that SleepEx correctly sleeps for a given amount of time,
** regardless of the alertable flag.
**
**
**===================================================================*/
#include <palsuite.h>
typedef struct
{
DWORD SleepTime;
BOOL Alertable;
} testCase;
testCase testCases[] =
{
{0, FALSE},
{50, FALSE},
{100, FALSE},
{500, FALSE},
{2000, FALSE},
{0, TRUE},
{50, TRUE},
{100, TRUE},
{500, TRUE},
{2000, TRUE},
};
/* 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(testCases) / sizeof(testCases[0]); i++)
{
OldTimeStamp = GetHighPrecisionTimeStamp(performanceFrequency);
SleepEx(testCases[i].SleepTime, testCases[i].Alertable);
NewTimeStamp = GetHighPrecisionTimeStamp(performanceFrequency);
TimeDelta = NewTimeStamp - OldTimeStamp;
/* For longer intervals use a 10 percent tolerance */
if ((testCases[i].SleepTime * 0.1) > AcceptableTimeError)
{
MaxDelta = testCases[i].SleepTime + (DWORD)(testCases[i].SleepTime * 0.1);
}
else
{
MaxDelta = testCases[i].SleepTime + AcceptableTimeError;
}
if (TimeDelta < testCases[i].SleepTime || TimeDelta > MaxDelta)
{
Fail("The sleep function slept for %d ms when it should have "
"slept for %d ms\n", TimeDelta, testCases[i].SleepTime);
}
}
PAL_Terminate();
return PASS;
}
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