--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/engine/xathreadsyncitf.c Tue Aug 31 15:43:02 2010 +0300
@@ -0,0 +1,139 @@
+/*
+ * 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: ThreadSync Itf Implementation
+ *
+ */
+
+#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");
+ if(self)
+ {
+ assert(self==self->self);
+ XAImpl_DeleteMutex(self->engCriticalSection);
+ free(self);
+ }
+ DEBUG_API("<-XAThreadSyncItfImpl_Free");
+ }
+