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/****************************************************************************
* *
* OpenNI 1.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* OpenNI is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* OpenNI is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with OpenNI. If not, see <http://www.gnu.org/licenses/>. *
* *
****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnOS.h>
#include <XnLog.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XN_C_API XnStatus xnOSLoadLibrary(const XnChar* cpFileName, XN_LIB_HANDLE* pLibHandle)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(cpFileName);
XN_VALIDATE_OUTPUT_PTR(pLibHandle);
// Load the requested shared library via the OS
*pLibHandle = LoadLibraryEx(cpFileName, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
// Make sure it succeeded (return value is not NULL). If not return an error....
if (*pLibHandle == NULL)
{
xnLogWarning(XN_MASK_OS, "Failed to load library '%s'. Error code: %d", cpFileName, GetLastError());
return (XN_STATUS_OS_CANT_LOAD_LIB);
}
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSFreeLibrary(const XN_LIB_HANDLE LibHandle)
{
// Make sure the actual shared library handle isn't NULL
XN_RET_IF_NULL(LibHandle, XN_STATUS_OS_INVALID_LIBRARY);
// Free the shared library via the OS and make sure it succeeded
if (FreeLibrary(LibHandle) != TRUE)
{
return (XN_STATUS_OS_CANT_FREE_LIB);
}
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSGetProcAddress(const XN_LIB_HANDLE LibHandle, const XnChar* cpProcName, XnFarProc* pProcAddr)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(cpProcName);
XN_VALIDATE_OUTPUT_PTR(pProcAddr);
// Make sure the actual shared library handle isn't NULL
XN_RET_IF_NULL(LibHandle, XN_STATUS_OS_INVALID_LIBRARY);
// Get the requested procedure address from the shared library via the OS
*pProcAddr = GetProcAddress(LibHandle, cpProcName);
// Make sure it succeeded (return value is not NULL). If not return an error....
XN_VALIDATE_PTR(*pProcAddr, XN_STATUS_OS_PROC_NOT_FOUND);
// All is good...
return (XN_STATUS_OK);
}
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