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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>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XN_C_API XnStatus xnOSCreateThread(XN_THREAD_PROC_PROTO pThreadProc, const XN_THREAD_PARAM pThreadParam, XN_THREAD_HANDLE* pThreadHandle)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pThreadProc);
XN_VALIDATE_OUTPUT_PTR(pThreadHandle);
// Create a thread via the OS
*pThreadHandle = CreateThread(NULL, 0, pThreadProc, pThreadParam, 0, NULL);
// Make sure it succeeded (return value is not null)
XN_VALIDATE_PTR(*pThreadHandle, XN_STATUS_OS_THREAD_CREATION_FAILED);
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSTerminateThread(XN_THREAD_HANDLE* pThreadHandle)
{
// Local function variables
XnBool bRetVal = FALSE;
XnStatus nRetVal = XN_STATUS_OK;
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pThreadHandle);
// Make sure the actual thread handle isn't NULL
XN_RET_IF_NULL(*pThreadHandle, XN_STATUS_OS_INVALID_THREAD);
// Close the thread via the OS
bRetVal = TerminateThread(*pThreadHandle, 0);
// Make sure it succeeded (return value is true)
if (bRetVal != TRUE)
{
return (XN_STATUS_OS_THREAD_TERMINATION_FAILED);
}
// Close the handle
nRetVal = xnOSCloseThread(pThreadHandle);
XN_IS_STATUS_OK(nRetVal);
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSCloseThread(XN_THREAD_HANDLE* pThreadHandle)
{
// Local function variables
XnBool bRetVal = FALSE;
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pThreadHandle);
// Make sure the actual thread handle isn't NULL
XN_RET_IF_NULL(*pThreadHandle, XN_STATUS_OS_INVALID_THREAD);
// Close the thread via the OS
bRetVal = CloseHandle(*pThreadHandle);
// Make sure it succeeded (return value is true)
if (bRetVal != TRUE)
{
return (XN_STATUS_OS_THREAD_CLOSE_FAILED);
}
// Null the output thread
*pThreadHandle = NULL;
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSWaitForThreadExit(XN_THREAD_HANDLE ThreadHandle, XnUInt32 nMilliseconds)
{
// Local function variables
XnInt32 nRetVal = 0;
// Make sure the actual thread handle isn't NULL
XN_RET_IF_NULL(ThreadHandle, XN_STATUS_OS_INVALID_THREAD);
// Lock the mutex for a period if time (can be infinite)
nRetVal = WaitForSingleObject(ThreadHandle, nMilliseconds);
// Check the return value (WAIT_OBJECT_0 is OK)
if (nRetVal != WAIT_OBJECT_0)
{
// Handle the timeout failure
if (nRetVal == WAIT_TIMEOUT)
{
return (XN_STATUS_OS_THREAD_TIMEOUT);
}
else
{
return (XN_STATUS_OS_THREAD_WAIT_FAILED);
}
}
// All is good...
return (XN_STATUS_OK);
}
XN_C_API XnStatus xnOSSetThreadPriority(XN_THREAD_HANDLE ThreadHandle, XnThreadPriority nPriority)
{
int nWinPriority = 0;
switch (nPriority)
{
case XN_PRIORITY_CRITICAL:
nWinPriority = THREAD_PRIORITY_TIME_CRITICAL;
break;
case XN_PRIORITY_HIGH:
nWinPriority = THREAD_PRIORITY_HIGHEST;
break;
case XN_PRIORITY_LOW:
nWinPriority = THREAD_PRIORITY_LOWEST;
break;
case XN_PRIORITY_NORMAL:
nWinPriority = THREAD_PRIORITY_NORMAL;
break;
default:
XN_ASSERT(FALSE);
return XN_STATUS_OS_THREAD_UNSUPPORTED_PRIORITY;
}
if (!SetThreadPriority(ThreadHandle, nWinPriority))
{
return XN_STATUS_OS_THREAD_SET_PRIORITY_FAILED;
}
return XN_STATUS_OK;
}
XN_C_API XnStatus xnOSGetCurrentThreadID(XN_THREAD_ID* pThreadID)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_OUTPUT_PTR(pThreadID);
// Get the current thread id
*pThreadID = GetCurrentThreadId();
// All is good...
return (XN_STATUS_OK);
}
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