diff -r 71ca22bcf22a -r 5a06f39ad45b khronosfws/openmax_al/src/common/xaplatform.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/common/xaplatform.c	Fri Apr 16 15:29:42 2010 +0300
@@ -0,0 +1,283 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include <pthread.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+
+#include "xaplatform.h"
+
+
+
+/** MACROS **/
+
+/**********************************************************************
+ * mutex management
+ **********************************************************************/
+/* define next if platform supports posix error checking mutex type */
+#undef _MUTEXERRORSUPPORT
+
+#ifdef _MUTEXERRORSUPPORT
+    typedef pthread_mutex_t XA_MTX;
+#else
+    typedef struct
+    {
+        pthread_mutex_t mutex;
+        pthread_t owner;
+    } XA_MTX;
+#endif
+
+XAresult XAImpl_CreateMutex( XAImplMutexHandle *mtx )
+{
+    XA_MTX *pMtx = (XA_MTX *)malloc(sizeof(XA_MTX));
+    assert(mtx);
+    if( pMtx )
+    {
+        pthread_mutexattr_t *pAttr = NULL;
+#ifdef _MUTEXERRORSUPPORT
+        pthread_mutexattr_t attr;
+        pAttr = &attr;
+        pthread_mutexattr_init(pAttr);
+        pthread_mutexattr_settype(pAttr, PTHREAD_MUTEX_ERRORCHECK);
+        if(pthread_mutex_init(pMtx, pAttr))
+#else
+        if(pthread_mutex_init(&(pMtx->mutex), pAttr))
+#endif
+        {
+            free(pMtx);
+            *mtx = NULL;
+            return XA_RESULT_INTERNAL_ERROR;
+        }
+        *mtx = (XAImplMutexHandle)pMtx;
+        return XA_RESULT_SUCCESS;
+    }
+    else
+    {
+        return XA_RESULT_MEMORY_FAILURE;
+    }
+}
+
+
+XAresult XAImpl_LockMutex( XAImplMutexHandle mtx )
+{
+    XA_MTX *pMtx = (XA_MTX*)mtx;
+    assert(pMtx);
+#ifdef _MUTEXERRORSUPPORT
+    if(pthread_mutex_lock(pMtx))
+    {
+        return XA_RESULT_PRECONDITIONS_VIOLATED;
+    }
+#else
+    if( pthread_self() == pMtx->owner ||
+        pthread_mutex_unlock(&(pMtx->mutex)) )
+    {
+        return XA_RESULT_PRECONDITIONS_VIOLATED;
+    }
+    pMtx->owner = pthread_self();
+#endif
+    return XA_RESULT_SUCCESS;
+}
+
+XAresult XAImpl_TryLockMutex( XAImplMutexHandle  mtx )
+{
+    XA_MTX *pMtx = (XA_MTX*)mtx;
+    XAint32 mutexRet;
+    XAresult ret = XA_RESULT_SUCCESS;
+    assert(pMtx);
+
+#ifdef _MUTEXERRORSUPPORT
+    mutexRet = pthread_ mutex_trylock(pMtx);
+    switch (mutexRet)
+    {
+    case EBUSY:
+        /* if mutex is already locked, return permission denied */
+        ret =  XA_RESULT_PERMISSION_DENIED;
+        break;
+    case 0:
+        ret =  XA_RESULT_SUCCESS;
+        break;
+    default:
+        ret = XA_RESULT_PRECONDITIONS_VIOLATED;
+        break;
+    }
+#else
+    if( pthread_self() == pMtx->owner )
+    {
+        return XA_RESULT_PRECONDITIONS_VIOLATED;
+    }
+
+    mutexRet = pthread_mutex_trylock(&(pMtx->mutex));
+    switch (mutexRet)
+    {
+    case EBUSY:
+        /* if mutex is already locked, return permission denied */
+        ret =  XA_RESULT_PERMISSION_DENIED;
+        break;
+    case 0:
+        pMtx->owner = pthread_self();
+        ret =  XA_RESULT_SUCCESS;
+        break;
+    default:
+        ret =  XA_RESULT_PRECONDITIONS_VIOLATED;
+        break;
+    }
+#endif
+    return ret;
+}
+
+
+XAresult XAImpl_UnlockMutex( XAImplMutexHandle mtx )
+{
+    XA_MTX *pMtx = (XA_MTX*)mtx;
+    assert(pMtx);
+#ifdef _MUTEXERRORSUPPORT
+    if(pthread_mutex_lock(pMtx))
+    {
+        return XA_RESULT_PRECONDITIONS_VIOLATED;
+    }
+#else
+    if( pthread_self() != pMtx->owner ||
+        pthread_mutex_unlock(&(pMtx->mutex)) )
+    {
+        return XA_RESULT_PRECONDITIONS_VIOLATED;
+    }
+    // Changing the below value to 0 since owner is an unsigned int.
+    // pMtx->owner = -1;
+    pMtx->owner = 0;
+#endif
+    return XA_RESULT_SUCCESS;
+}
+
+void XAImpl_DeleteMutex( XAImplMutexHandle mtx )
+{
+    XA_MTX *pMtx = (XA_MTX*)mtx;
+    if( pMtx )
+    {
+#ifdef _MUTEXERRORSUPPORT
+        pthread_mutex_destroy(pMtx);
+#else
+        pthread_mutex_destroy(&(pMtx->mutex));
+#endif
+        free(pMtx);
+    }
+}
+
+/**********************************************************************
+ * semaphores
+ **********************************************************************/
+
+
+XAresult XAImpl_CreateSemaphore( XAImplSemHandle *sem )
+{
+    sem_t *pSem = (sem_t*)malloc(sizeof(sem_t));
+    assert(sem);
+    if( pSem )
+    {
+        if(sem_init(pSem,0,0))
+        {
+            free(pSem);
+            *sem = NULL;
+            return XA_RESULT_INTERNAL_ERROR;
+        }
+        *sem = (XAImplSemHandle)pSem;
+        return XA_RESULT_SUCCESS;
+    }
+    else
+    {
+        return XA_RESULT_MEMORY_FAILURE;
+    }
+}
+
+XAresult XAImpl_WaitSemaphore( XAImplSemHandle sem )
+{
+    sem_t* pSem = (sem_t*)sem;
+    assert(pSem);
+    sem_wait(pSem);
+    return XA_RESULT_SUCCESS;
+}
+
+XAresult XAImpl_PostSemaphore( XAImplSemHandle sem )
+{
+    sem_t *pSem = (sem_t*)sem;
+    assert(pSem);
+    sem_post(pSem);
+    return XA_RESULT_SUCCESS;
+}
+
+void XAImpl_DeleteSemaphore( XAImplSemHandle sem )
+{
+    sem_t *pSem = (sem_t*)sem;
+    if( pSem )
+    {
+        sem_destroy(pSem);
+        free(pSem);
+    }
+}
+
+/**********************************************************************
+ * THREADS
+ **********************************************************************/
+
+XAresult XAImpl_CreateThreadHandle( XAImplThreadHandle *thd )
+{
+    pthread_t *pThd = (pthread_t*)malloc(sizeof(pthread_t));
+    assert(thd);
+    if( !pThd )
+    {
+        return XA_RESULT_MEMORY_FAILURE;
+    }
+    *thd = (XAImplThreadHandle)pThd;
+    return XA_RESULT_SUCCESS;
+}
+
+XAresult XAImpl_StartThread( XAImplThreadHandle thd,
+        void *thdattrib, XAImplThreadFunction thdfunc, void* thdfuncargs )
+{
+    pthread_t *pThd = (pthread_t*)thd;
+    assert(thd);
+    if ( pthread_create(pThd, thdattrib, thdfunc, thdfuncargs) )
+    {
+        return XA_RESULT_INTERNAL_ERROR;
+    }
+    return XA_RESULT_SUCCESS;
+}
+
+void XAImpl_CancelThread( XAImplThreadHandle thd )
+{
+// int res;
+ // TL: TODO: There is no pthread_cancel API in S60, need to replace
+ //res = pthread_cancel(*pThd);
+ 
+}
+
+void XAImpl_ExitThread( XAImplThreadHandle thd )
+{
+    pthread_exit(NULL);
+}
+
+void XAImpl_DeleteThreadHandle( XAImplThreadHandle thd )
+{
+    pthread_t *pThd = (pthread_t*)thd;
+    if( pThd )
+    {
+        free(pThd);
+    }
+}
+