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/*****************************************************************************
* *
* PrimeSense PSCommon Library *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of PSCommon. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
#include <XnLib.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XN_C_API XnStatus xnOSCreateCriticalSection(XN_CRITICAL_SECTION_HANDLE* pCriticalSectionHandle)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pCriticalSectionHandle);
// allocate critical section memory
XN_VALIDATE_ALLOC(*pCriticalSectionHandle, CRITICAL_SECTION);
// initialize the critical section object via OS
InitializeCriticalSection(*pCriticalSectionHandle);
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSCloseCriticalSection(XN_CRITICAL_SECTION_HANDLE* pCriticalSectionHandle)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pCriticalSectionHandle);
// Make sure the actual critical section handle isn't NULL
XN_RET_IF_NULL(*pCriticalSectionHandle, XN_STATUS_OS_INVALID_CRITICAL_SECTION);
// Close the critical section via the OS
DeleteCriticalSection(*pCriticalSectionHandle);
// release allocated memory
XN_FREE_AND_NULL(*pCriticalSectionHandle);
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSEnterCriticalSection(XN_CRITICAL_SECTION_HANDLE* pCriticalSectionHandle)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pCriticalSectionHandle);
// Make sure the actual critical section handle isn't NULL
XN_RET_IF_NULL(*pCriticalSectionHandle, XN_STATUS_OS_INVALID_CRITICAL_SECTION);
// Enter the critical section via the OS
EnterCriticalSection(*pCriticalSectionHandle);
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSLeaveCriticalSection(XN_CRITICAL_SECTION_HANDLE* pCriticalSectionHandle)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pCriticalSectionHandle);
// Make sure the actual critical section handle isn't NULL
XN_RET_IF_NULL(*pCriticalSectionHandle, XN_STATUS_OS_INVALID_CRITICAL_SECTION);
// Leave the critical section via the OS
LeaveCriticalSection(*pCriticalSectionHandle);
// All is good...
return (XN_STATUS_OK);
}
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