epoc32/include/mw/cbioasyncwaiter.h
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
parent 3 e1b950c65cb4
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.
     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__