--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/engine/xathreadsyncitf.c Fri Apr 16 15:29:42 2010 +0300
@@ -0,0 +1,134 @@
+/*
+* 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 <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "xathreadsyncitf.h"
+
+/**
+ * Base interface XAThreadSyncItf Implementation
+ */
+XAresult XAThreadSyncItfImpl_EnterCriticalSection(XAThreadSyncItf self)
+{
+ XAresult ret = XA_RESULT_SUCCESS;
+ XAThreadSyncItfImpl* impl = NULL;
+
+ DEBUG_API("->XAThreadSyncItfImpl_EnterCriticalSection");
+
+ impl = (XAThreadSyncItfImpl*)(*self);
+ if( !impl || impl != impl->self )
+ {
+ DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+ DEBUG_API("<-XAThreadSyncItfImpl_EnterCriticalSection");
+ return XA_RESULT_PARAMETER_INVALID;
+ }
+
+ if( impl->engInCritical )
+ {
+ /* The calling context must not already be in
+ critical section state. */
+ DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED");
+ ret = XA_RESULT_PRECONDITIONS_VIOLATED;
+ }
+ else
+ {
+ ret = XAImpl_LockMutex( impl->engCriticalSection );
+ if(ret == XA_RESULT_SUCCESS)
+ {
+ impl->engInCritical = XA_BOOLEAN_TRUE;
+ }
+ }
+ DEBUG_API("<-XAThreadSyncItfImpl_EnterCriticalSection");
+ return ret;
+}
+
+XAresult XAThreadSyncItfImpl_ExitCriticalSection(XAThreadSyncItf self)
+{
+ XAThreadSyncItfImpl* impl = NULL;
+ XAresult ret = XA_RESULT_SUCCESS;
+
+ impl = (XAThreadSyncItfImpl*)(*self);
+ DEBUG_API("->XAThreadSyncItfImpl_ExitCriticalSection");
+
+ if( !impl || impl != impl->self )
+ {
+ DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+ DEBUG_API("<-XAThreadSyncItfImpl_ExitCriticalSection");
+ return XA_RESULT_PARAMETER_INVALID;
+ }
+
+ if( impl->engInCritical )
+ {
+ ret = XAImpl_UnlockMutex( impl->engCriticalSection );
+ if(ret == XA_RESULT_SUCCESS)
+ {
+ impl->engInCritical = XA_BOOLEAN_FALSE;
+ }
+ }
+ else
+ {
+ /* The engine must be in critical section state */
+ DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED");
+ ret = XA_RESULT_PRECONDITIONS_VIOLATED;
+ }
+ DEBUG_API("<-XAThreadSyncItfImpl_ExitCriticalSection");
+ return ret;
+}
+
+/**
+ * XAThreadSyncItfImpl -specific methods
+ **/
+
+XAThreadSyncItfImpl* XAThreadSyncItfImpl_Create()
+{
+ XAThreadSyncItfImpl *self = NULL;
+ DEBUG_API("->XAThreadSyncItfImpl_Create");
+
+ self = (XAThreadSyncItfImpl*)calloc(1,sizeof(XAThreadSyncItfImpl));
+
+ if( self )
+ {
+ /* init itf default implementation */
+ self->itf.EnterCriticalSection = XAThreadSyncItfImpl_EnterCriticalSection;
+ self->itf.ExitCriticalSection = XAThreadSyncItfImpl_ExitCriticalSection;
+
+ if( XAImpl_CreateMutex( &(self->engCriticalSection) )
+ != XA_RESULT_SUCCESS )
+ {
+ DEBUG_ERR("Mutex creation failed, abort");
+ free(self);
+ DEBUG_API("<-XAThreadSyncItfImpl_Create");
+ return NULL;
+ }
+
+ self->self = self;
+ }
+ DEBUG_API("<-XAThreadSyncItfImpl_Create");
+ return self;
+}
+
+void XAThreadSyncItfImpl_Free(XAThreadSyncItfImpl* self)
+{
+ DEBUG_API("->XAThreadSyncItfImpl_Free");
+ assert(self==self->self);
+ XAImpl_DeleteMutex(self->engCriticalSection);
+ free(self);
+ DEBUG_API("<-XAThreadSyncItfImpl_Free");
+}
+