1 /*

     2 * Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  State machine for fetching and caching files and directories

    15 *

    16 */

    17 

    18 

    19 #ifndef C_RSFW_FETCHANDCACHESTATEMACHINE_H

    20 #define C_RSFW_FETCHANDCACHESTATEMACHINE_H

    21 

    22 #include "rsfwwaitnotestatemachine.h"

    23 

    24 /**

    25  *  State machine for fetching and caching files and directories

    26  *

    27  */

    28 class CRsfwFetchAndCacheStateMachine : public CRsfwWaitNoteStateMachine

    29     {

    30 public:

    31     CRsfwFetchAndCacheStateMachine();

    32     TState* ErrorOnStateExit(TInt aError);

    33 

    34 public:

    35     // STATES

    36     // Before DoFetch we call UpdateAttributesL,

    37     // where it is decided whether cached data is used...

    38     // so this operation has only one state that fetches the data -

    39     // possibly from the server or then from the local cache

    40     class TFetchDataState : public CRsfwFetchAndCacheStateMachine::TState

    41         {

    42     public:

    43         TFetchDataState(CRsfwFetchAndCacheStateMachine* aOperation);

    44         void EnterL();

    45         TState* CompleteL();

    46         TState* ErrorL(TInt aCode);

    47     private:

    48         CRsfwFetchAndCacheStateMachine* iOperation;

    49         };

    50         

    51 public:

    52     TState* CompleteRequestL(TInt aError);

    53 

    54 public:

    55     // input params

    56     // the first byte requested

    57     // = the current cached size

    58     TInt iFirstByte;

    59 

    60     // output params:

    61     // last byte of the container file after fetch

    62     TInt iLastByte;

    63     

    64     // directory entries, when used to fetch directory contents...

    65     RPointerArray<CRsfwDirEnt> iDirEnts;

    66     

    67     // length of the data fetched

    68     TInt iLength;

    69    

    70     };

    71 

    72 #endif // C_RSFW_FETCHANDCACHESTATEMACHINE_H