1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __CBIOASYNCWAITER_H__

    17 #define __CBIOASYNCWAITER_H__

    18 

    19 #include <e32base.h>

    20 

    21 /**

    22 Utility class for waiting for asychronous requests.

    23 

    24 This class allows asynchronous requests to be made from synchronous

    25 objects. This object is used by passing its iStatus to an asynchronous

    26 request and then calling Start(). The result of the request can be 

    27 obtained by calling the Result() method.

    28 

    29 @publishedAll

    30 @released

    31 */

    32 class CBioAsyncWaiter : public CActive

    33 	{

    34 public:

    35 	IMPORT_C static CBioAsyncWaiter* NewLC();

    36 	IMPORT_C ~CBioAsyncWaiter();

    37 	

    38 	IMPORT_C void StartAndWait();

    39 	IMPORT_C TInt Result() const;

    40 	

    41 private:

    42 	CBioAsyncWaiter();

    43 	

    44 	// from CActive

    45 	virtual void RunL();

    46 	virtual void DoCancel();

    47 	

    48 private:

    49 	TInt iError;

    50 	};

    51 

    52 #endif // __CBIOASYNCWAITER_H__