| 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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#ifndef __BASIC_WATCHER_H |
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#define __BASIC_WATCHER_H |
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|
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/* |
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* Copyright (c) 2007-2009 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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* @file BasicWatcher.h |
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* @internalComponent |
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* |
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* |
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*/ |
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|
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|
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|
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#include <e32base.h> |
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#include <d32usbdi.h> |
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#include "testdebug.h" |
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|
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namespace NUnitTesting_USBDI |
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{
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|
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|
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/** |
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This class watches for asynchronous completions and calls back |
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*/ |
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class CBasicWatcher : public CActive |
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{
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public: |
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CBasicWatcher(const TCallBack& aCallBack,TInt aPriority=EPriorityStandard); |
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virtual ~CBasicWatcher(); |
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|
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void CompleteNow(TInt aCompletionCode = KErrNone); |
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void StartWatching(); |
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|
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protected: // From CActive |
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void DoCancel(); |
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void RunL(); |
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TInt RunError(TInt aError); |
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|
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private: |
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TCallBack iCallBack; |
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TInt iCompletionCode; |
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}; |
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|
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|
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|
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|
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|
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/** |
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This class describes a watcher for resumptions of interfaces |
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*/ |
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class CInterfaceWatcher : public CActive |
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{
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public: |
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/** |
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Constructor, build |
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@param aInterface the usb interface to suspend |
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@param aCallBack the call back object to call once a resumption signal has happened |
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*/ |
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CInterfaceWatcher(RUsbInterface& aInterface,const TCallBack& aCallBack) |
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: CActive(EPriorityUserInput), |
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iUsbInterface(aInterface), |
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iResumeCallBack(aCallBack), |
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iCompletionCode(KErrNone) |
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{
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CActiveScheduler::Add(this); |
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} |
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|
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/** |
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Destructor |
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*/ |
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~CInterfaceWatcher() |
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{
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Cancel(); |
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} |
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|
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/** |
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Suspend the interface and watch for resumtions |
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*/ |
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void SuspendAndWatch() |
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{
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iUsbInterface.PermitSuspendAndWaitForResume(iStatus); |
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SetActive(); |
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} |
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|
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/** |
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Obtains the most recent completion code for the interface resumption |
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asynchronous action |
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@return the completion error code |
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*/ |
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TInt CompletionCode() const |
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{
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return iCompletionCode; |
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} |
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|
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protected: // From CActive |
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|
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/** |
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*/ |
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void DoCancel() |
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{
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LOG_FUNC |
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iUsbInterface.CancelPermitSuspend(); |
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} |
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|
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|
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/** |
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*/ |
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void RunL() |
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{
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LOG_FUNC |
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iCompletionCode = iStatus.Int(); |
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User::LeaveIfError(iResumeCallBack.CallBack()); |
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} |
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|
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/** |
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*/ |
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TInt RunError() |
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{
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LOG_FUNC |
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return KErrNone; |
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} |
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|
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private: |
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|
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/** |
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The USB interface resource |
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*/ |
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RUsbInterface& iUsbInterface; |
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|
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/** |
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*/ |
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TCallBack iResumeCallBack; |
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|
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/** |
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*/ |
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TInt iCompletionCode; |
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}; |
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|
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} |
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#endif |