Add new API GetTimeInNanoSecond() to TimerLib to convert elapsed ticks to time in unit of nanoseconds.
Signed-off-by: xdu2 Reviewed-by: mdkinney git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12206 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,7 +1,7 @@
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/** @file
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A non-functional instance of the Timer Library.
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Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@@ -111,3 +111,24 @@ GetPerformanceCounterProperties (
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return (UINT64)(-1);
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}
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/**
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Converts elapsed ticks of performance counter to time in nanoseconds.
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This function converts the elapsed ticks of running performance counter to
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time value in unit of nanoseconds.
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@param Ticks The number of elapsed ticks of running performance counter.
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@return The elapsed time in nanoseconds.
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**/
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UINT64
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EFIAPI
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GetTimeInNanoSecond (
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IN UINT64 Ticks
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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