1 /*

     2 * Copyright (c) 2003 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: Socket Interaction Thread implementation.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef __SIT_H__

    21 #define __SIT_H__

    22 

    23 #include <e32std.h>

    24 #include <e32base.h>

    25 

    26 #include "eventmediatorapi.h"

    27 #include "sitdeathobserver.h"

    28 

    29 #ifndef TRAP_IGNORE

    30 #define TRAP_IGNORE(_s) {TInt _ignore;TTrap __t;if (__t.Trap(_ignore)==0){_s;TTrap::UnTrap();}}

    31 #endif

    32 

    33 _LIT(KSitName, "SocketInteractionThread");

    34 

    35 static const TUid KUidSit = {0x101FD28D};

    36 

    37 enum TSitPanic

    38     {

    39     EPanicUnknownEventType = 1,

    40     EPanicInvalidTaskHandlerState,

    41     EPanicUnexpectedEventOccured                             

    42     };

    43 

    44 const TUint KSitMaxHeapSize = 0x80000;  // 512 kB

    45 

    46 /**

    47  * Socket Interaction Thread implementation

    48  */

    49 class CSit : public CBase, public MSitDeathListener

    50     {

    51 /**

    52  ** @internalComponent

    53  */

    54 public:

    55     IMPORT_C CSit(MSitDeathListener* aSitDeathListener);

    56     IMPORT_C ~CSit();

    57 

    58     IMPORT_C void StartL();

    59     IMPORT_C static TBool EventRequiresSit(TEventType aEventType);

    60     IMPORT_C TThreadId ThreadId();

    61     IMPORT_C static TEventType FindTaskRequestEventType(TEventType aCancelEventType);

    62     IMPORT_C static TEventType FindCancelEventType(TEventType aTaskRequestEventType);

    63     IMPORT_C static TBool IsTaskCancellationObservationRequest(TEventType aEventType);

    64     

    65 public: // From MSitDeathListener    

    66     void SitDied();

    67     

    68 public:    

    69     static HBufC16* To16BitL(const TDesC8& aDes);

    70 

    71 private:

    72     void StartWorkingL();

    73     void StartThreadL();

    74    

    75     static TInt ThreadFunction(TAny* aParameters);

    76 

    77 private:

    78     RThread* iTaskThread;

    79 

    80     CSitDeathObserver* iSitDeathObserver;

    81     MSitDeathListener* iSitDeathListener;

    82 

    83     TEventType iEventType;

    84     };

    85 

    86 #endif // __SIT_H__