1 /*

     2 * Copyright (c) 2007 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: 

    15 *

    16 */

    17 

    18 

    19 #include "cnatbindingrefresher.h"

    20 #include "mnatbindingrefresherobserver.h"

    21 

    22 

    23 // -----------------------------------------------------------------------------

    24 // CNATBindingRefresher::CNATBindingRefresher

    25 // -----------------------------------------------------------------------------

    26 //

    27 CNATBindingRefresher::CNATBindingRefresher(

    28     CDeltaTimer& aDeltaTimer,

    29     MNATBindingRefresherObserver& aObserver)

    30     : iObserver(aObserver),

    31       iDeltaTimer(aDeltaTimer),

    32       iDeltaTimerCallBack(RefreshTimerExpired,this),

    33       iDeltaTimerEntry(iDeltaTimerCallBack),

    34       iIsRefreshed(EFalse),

    35       iTimerRunning(EFalse)

    36     {

    37     }

    38 

    39 // -----------------------------------------------------------------------------

    40 // CNATBindingRefresher::~CNATBindingRefresher

    41 // -----------------------------------------------------------------------------

    42 //

    43 CNATBindingRefresher::~CNATBindingRefresher()

    44     {

    45     iDeltaTimer.Remove(iDeltaTimerEntry);

    46     }

    47 

    48 // -----------------------------------------------------------------------------

    49 // CNATBindingRefresher::PersistentConnectionRequired

    50 // -----------------------------------------------------------------------------

    51 //

    52 TBool CNATBindingRefresher::PersistentConnectionRequired() const

    53     {

    54     return EFalse;

    55     }

    56 

    57 // -----------------------------------------------------------------------------

    58 // CNATBindingRefresher::HasSocket

    59 // -----------------------------------------------------------------------------

    60 //

    61 TBool CNATBindingRefresher::HasSocket(const CSecureSocket& /*aSocket*/) const

    62     {

    63     return EFalse;

    64     }

    65 

    66 // -----------------------------------------------------------------------------

    67 // CNATBindingRefresher::SetRefresh

    68 // -----------------------------------------------------------------------------

    69 //

    70 void CNATBindingRefresher::SetRefresh(TBool aRefresh)

    71     {

    72     iIsRefreshed = aRefresh;

    73     if (aRefresh)

    74         {

    75         StartTimer();

    76         }

    77     else

    78         {

    79         iDeltaTimer.Remove(iDeltaTimerEntry);

    80         CancelRefresh();

    81         iTimerRunning = EFalse;

    82         }

    83     }

    84 

    85 // -----------------------------------------------------------------------------

    86 // CNATBindingRefresher::ContinueRefreshing

    87 // -----------------------------------------------------------------------------

    88 //

    89 void CNATBindingRefresher::ContinueRefreshing()

    90     {

    91     if (iIsRefreshed)

    92         {

    93         StartTimer();

    94         }

    95     }

    96 

    97 // -----------------------------------------------------------------------------

    98 // CNATBindingRefresher::IsRefreshed

    99 // -----------------------------------------------------------------------------

   100 //

   101 TBool CNATBindingRefresher::IsRefreshed() const

   102     {

   103     return iIsRefreshed;

   104     }

   105 

   106 // -----------------------------------------------------------------------------

   107 // CNATBindingRefresher::RefreshTimerExpired

   108 // A callback for CDeltaTimer

   109 // -----------------------------------------------------------------------------

   110 //

   111 TInt CNATBindingRefresher::RefreshTimerExpired(TAny* aPtr)

   112     {

   113     _LIT(KPanicCategory,"NAT Traversal Controller");

   114     __ASSERT_ALWAYS(aPtr,User::Panic(KPanicCategory,KErrBadHandle));

   115     CNATBindingRefresher* self = reinterpret_cast<CNATBindingRefresher*>(aPtr);

   116     self->RefreshNow();

   117     return ETrue;

   118     }

   119 

   120 // -----------------------------------------------------------------------------

   121 // CNATBindingRefresher::StartTimer

   122 // -----------------------------------------------------------------------------

   123 //

   124 void CNATBindingRefresher::StartTimer()

   125     {

   126     if (!iTimerRunning)

   127         {

   128         iDeltaTimer.Remove(iDeltaTimerEntry);

   129         TTimeIntervalMicroSeconds32 interval(RefreshInterval());

   130         iDeltaTimer.Queue(interval,iDeltaTimerEntry);

   131         iTimerRunning = ETrue;

   132         }

   133     }

   134 

   135 // -----------------------------------------------------------------------------

   136 // CNATBindingRefresher::RefreshNow

   137 // -----------------------------------------------------------------------------

   138 //

   139 void CNATBindingRefresher::RefreshNow()

   140     {

   141     iTimerRunning = EFalse;

   142     TRAPD(err, RefreshTimerExpiredL());

   143     if (err)

   144         {

   145         iObserver.NATBindingRefreshComplete(err);

   146         }

   147     }