| author | sl@SLION-WIN7.fritz.box |
| Fri, 15 Jun 2012 03:10:57 +0200 | |
| changeset 0 | bde4ae8d615e |
| permissions | -rw-r--r-- |
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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 the License "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: |
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// |
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|
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#include <kernel/kernel.h> |
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#include "d_buffer_manager.h" |
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|
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using namespace Debug; |
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|
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// Global buffer manager |
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DBufferManager TheDBufferManager; |
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|
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DBufferManager::DBufferManager() |
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{
|
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} |
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|
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DBufferManager::~DBufferManager() |
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{
|
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for(TInt i=0; i<iBuffers.Count(); i++) |
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{
|
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if(iBuffers[i].iSize>0 && iBuffers[i].iValue) |
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{
|
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Kern::Free((TAny*)iBuffers[i].iValue); |
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} |
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} |
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|
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iBuffers.Close(); |
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} |
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|
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/** |
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* Creates a buffer and adds it to the buffer manager |
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* @param aBufferDetails Contains the size and tag ID of the buffer to be created and the location |
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* in which the resulting buffer is created |
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* @return One of the System wide error codes |
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*/ |
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TInt DBufferManager::CreateBuffer(TTag& aBufferDetails) |
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{
|
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if(aBufferDetails.iType != ETagTypePointer) |
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{
|
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return KErrArgument; |
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} |
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if(aBufferDetails.iSize == 0) |
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{
|
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return KErrArgument; |
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} |
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|
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for(TInt i=0; i<iBuffers.Count(); i++) |
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{
|
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if(iBuffers[i].iTagId == aBufferDetails.iTagId) |
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{
|
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return KErrAlreadyExists; |
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} |
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} |
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|
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TAny* buffer = Kern::AllocZ(aBufferDetails.iSize); |
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if(!buffer) |
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{
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return KErrNoMemory; |
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} |
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|
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aBufferDetails.iValue = (TUint32)buffer; |
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if(KErrNone != iBuffers.Append(aBufferDetails)) |
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{
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Kern::Free(buffer); |
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return KErrNoMemory; |
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} |
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|
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return KErrNone; |
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} |
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|
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/** |
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* Retrieves buffer details for a given tag |
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* @param aTag The tag for which to get buffer details |
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* @return One of the System wide error codes |
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*/ |
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TInt DBufferManager::GetBufferDetails(const TBufferType aBufferType, TTag& aTag) const |
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{
|
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for(TInt i=0; i<iBuffers.Count(); i++) |
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{
|
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if(iBuffers[i].iTagId == aBufferType) |
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{
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aTag = iBuffers[i]; |
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return KErrNone; |
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} |
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} |
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|
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aTag.iTagId = aBufferType; |
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aTag.iType = ETagTypePointer; |
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aTag.iSize = 0; |
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aTag.iValue = NULL; |
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|
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return KErrNotFound; |
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} |
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