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:  M3GCore function call serialization and synchronization

    15 *

    16 */

    17 

    18 #ifndef CSYNCHRONIZATION_H

    19 #define CSYNCHRONIZATION_H

    20 

    21 // INCLUDE FILES

    22 #include <e32std.h>

    23 #include <e32base.h>

    24 

    25 // CLASS DECLARATION

    26 /**

    27  * @class CSynchronization

    28  */

    29 class CSynchronization : public CBase

    30 {

    31 public:

    32     /**

    33      * Two-phased constructor.

    34          */

    35     static CSynchronization* InstanceL();

    36 

    37     /**

    38          * Dtor

    39          */

    40     ~CSynchronization();

    41 

    42     /**

    43        * Locks the semaphore

    44        */

    45     void Lock();

    46 

    47     /**

    48        * Unlocks the semaphore

    49        */

    50     void Unlock();

    51 

    52     /**

    53     * Sets error code for error occured during lock period

    54     */

    55     void SetErrorCode(TInt aCode);

    56 

    57     /**

    58     * Returns error string set with SetErrorString

    59     */

    60     TInt GetErrorCode();

    61 

    62 private: // METHODS

    63     /**

    64       * Constructor

    65       */

    66     CSynchronization();

    67 

    68     /**

    69     * Two-phased constructor.

    70     * @return New object

    71     */

    72     static CSynchronization* NewL();

    73 

    74     /**

    75      * Constructor

    76      */

    77     void ConstructL();

    78 

    79 private: // MEMBER VARIABLES

    80     static CSynchronization* iSelf;

    81     RCriticalSection iGuard;

    82     TInt iErrorCode;

    83 };

    84 

    85 #endif // CSYNCHRONIZATION_H