author | hgs |
Fri, 11 Jun 2010 19:59:23 -0500 | |
changeset 25 | 6f7ceef7b1d1 |
parent 12 | 5a06f39ad45b |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: ThreadSync Itf Implementation |
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* |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <assert.h> |
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#include "xathreadsyncitf.h" |
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/** |
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* Base interface XAThreadSyncItf Implementation |
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*/ |
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XAresult XAThreadSyncItfImpl_EnterCriticalSection(XAThreadSyncItf self) |
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{ |
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XAresult ret = XA_RESULT_SUCCESS; |
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XAThreadSyncItfImpl* impl = NULL; |
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DEBUG_API("->XAThreadSyncItfImpl_EnterCriticalSection"); |
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impl = (XAThreadSyncItfImpl*) (*self); |
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if (!impl || impl != impl->self) |
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{ |
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DEBUG_ERR("XA_RESULT_PARAMETER_INVALID"); |
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DEBUG_API("<-XAThreadSyncItfImpl_EnterCriticalSection"); |
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return XA_RESULT_PARAMETER_INVALID; |
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} |
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if (impl->engInCritical) |
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{ |
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/* The calling context must not already be in |
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critical section state. */ |
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DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED"); |
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ret = XA_RESULT_PRECONDITIONS_VIOLATED; |
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} |
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else |
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{ |
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ret = XAImpl_LockMutex(impl->engCriticalSection); |
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if (ret == XA_RESULT_SUCCESS) |
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{ |
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impl->engInCritical = XA_BOOLEAN_TRUE; |
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} |
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}DEBUG_API("<-XAThreadSyncItfImpl_EnterCriticalSection"); |
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return ret; |
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} |
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XAresult XAThreadSyncItfImpl_ExitCriticalSection(XAThreadSyncItf self) |
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{ |
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XAThreadSyncItfImpl* impl = NULL; |
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XAresult ret = XA_RESULT_SUCCESS; |
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impl = (XAThreadSyncItfImpl*) (*self); |
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DEBUG_API("->XAThreadSyncItfImpl_ExitCriticalSection"); |
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if (!impl || impl != impl->self) |
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{ |
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DEBUG_ERR("XA_RESULT_PARAMETER_INVALID"); |
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DEBUG_API("<-XAThreadSyncItfImpl_ExitCriticalSection"); |
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return XA_RESULT_PARAMETER_INVALID; |
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} |
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if (impl->engInCritical) |
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{ |
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ret = XAImpl_UnlockMutex(impl->engCriticalSection); |
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if (ret == XA_RESULT_SUCCESS) |
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{ |
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impl->engInCritical = XA_BOOLEAN_FALSE; |
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} |
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} |
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else |
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{ |
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/* The engine must be in critical section state */ |
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DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED"); |
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ret = XA_RESULT_PRECONDITIONS_VIOLATED; |
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}DEBUG_API("<-XAThreadSyncItfImpl_ExitCriticalSection"); |
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return ret; |
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} |
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/** |
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* XAThreadSyncItfImpl -specific methods |
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**/ |
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XAThreadSyncItfImpl* XAThreadSyncItfImpl_Create() |
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{ |
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XAThreadSyncItfImpl *self = NULL; |
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DEBUG_API("->XAThreadSyncItfImpl_Create"); |
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self = (XAThreadSyncItfImpl*) calloc(1, sizeof(XAThreadSyncItfImpl)); |
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if (self) |
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{ |
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/* init itf default implementation */ |
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self->itf.EnterCriticalSection |
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= XAThreadSyncItfImpl_EnterCriticalSection; |
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self->itf.ExitCriticalSection |
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= XAThreadSyncItfImpl_ExitCriticalSection; |
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if (XAImpl_CreateMutex(&(self->engCriticalSection)) |
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!= XA_RESULT_SUCCESS) |
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{ |
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DEBUG_ERR("Mutex creation failed, abort"); |
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free(self); |
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DEBUG_API("<-XAThreadSyncItfImpl_Create"); |
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return NULL; |
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} |
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self->self = self; |
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} |
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DEBUG_API("<-XAThreadSyncItfImpl_Create"); |
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return self; |
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} |
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void XAThreadSyncItfImpl_Free(XAThreadSyncItfImpl* self) |
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{ |
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DEBUG_API("->XAThreadSyncItfImpl_Free"); |
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assert(self==self->self); |
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if(self) |
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{ |
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XAImpl_DeleteMutex(self->engCriticalSection); |
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free(self); |
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} |
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DEBUG_API("<-XAThreadSyncItfImpl_Free"); |
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} |
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