natplugins/natpnatfwsdpprovider/src/nspstateactivating.cpp
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     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:  Activating state implementation.
       
    15 *
       
    16 */
       
    17 
       
    18 #include <sdpdocument.h>
       
    19 #include "nspstateactivating.h"
       
    20 #include "nspevents.h"
       
    21 #include "nspsession.h"
       
    22 #include "nspactionset.h"
       
    23 #include "nspsessiondata.h"
       
    24 #include "nspdefs.h"
       
    25 
       
    26 // ======== MEMBER FUNCTIONS ========
       
    27 // ---------------------------------------------------------------------------
       
    28 // CNSPStateActivating::CNSPStateActivating
       
    29 // ---------------------------------------------------------------------------
       
    30 //
       
    31 CNSPStateActivating::CNSPStateActivating()
       
    32     {
       
    33     }
       
    34 
       
    35 
       
    36 // ---------------------------------------------------------------------------
       
    37 // CNSPStateActivating::NewL
       
    38 // ---------------------------------------------------------------------------
       
    39 //
       
    40 CNSPStateActivating* CNSPStateActivating::NewL()
       
    41     {
       
    42     CNSPStateActivating* self = CNSPStateActivating::NewLC();
       
    43     CleanupStack::Pop( self );
       
    44     return self;
       
    45     }
       
    46 
       
    47 
       
    48 // ---------------------------------------------------------------------------
       
    49 // CNSPStateActivating::NewLC
       
    50 // ---------------------------------------------------------------------------
       
    51 //
       
    52 CNSPStateActivating* CNSPStateActivating::NewLC()
       
    53     {
       
    54     CNSPStateActivating* self = new ( ELeave ) CNSPStateActivating;
       
    55     CleanupStack::PushL( self );
       
    56     return self;
       
    57     }
       
    58 
       
    59 
       
    60 // ---------------------------------------------------------------------------
       
    61 // CNSPStateActivating::~CNSPStateActivating
       
    62 // ---------------------------------------------------------------------------
       
    63 //
       
    64 CNSPStateActivating::~CNSPStateActivating()
       
    65     {
       
    66     }
       
    67 
       
    68 
       
    69 // ---------------------------------------------------------------------------
       
    70 // CNSPStateActivating::DoAcceptL
       
    71 // ---------------------------------------------------------------------------
       
    72 //
       
    73 TBool CNSPStateActivating::DoAcceptL( TNSPStateMachineEvent& aEvent )
       
    74     {
       
    75     User::LeaveIfError(
       
    76             TNSPStateMachineEvent::ENat == aEvent.Request() ||
       
    77             TNSPStateMachineEvent::EUpdate == aEvent.Request() ||
       
    78             TNSPStateMachineEvent::EReservationStatus == aEvent.Request() ||
       
    79             TNSPStateMachineEvent::ECloseSession == aEvent.Request() ?
       
    80                     KErrNone : KErrArgument );
       
    81     
       
    82     return ETrue;
       
    83     }
       
    84 
       
    85 
       
    86 // ---------------------------------------------------------------------------
       
    87 // CNSPStateActivating::DoStateEntryL
       
    88 // ---------------------------------------------------------------------------
       
    89 //
       
    90 void CNSPStateActivating::DoStateEntryL( TNSPStateMachineEvent& aEvent )
       
    91     {
       
    92     CNSPSession& session = aEvent.Session();
       
    93     CSdpDocument* doc = ( OFFERER( session.Role() ) ? &session.Data().Answer() :
       
    94             ( ANSWERER( session.Role() ) ? &session.Data().Offer() : NULL ) );
       
    95     
       
    96     __ASSERT_ALWAYS( doc, User::Leave( KErrArgument ) );
       
    97     
       
    98     session.Actions().ActivateL( *doc );
       
    99     }
       
   100 
       
   101 
       
   102 // ---------------------------------------------------------------------------
       
   103 // CNSPStateActivating::DoReverse
       
   104 // ---------------------------------------------------------------------------
       
   105 //
       
   106 void CNSPStateActivating::DoReverse( TNSPStateMachineEvent& /*aEvent*/ )
       
   107     {
       
   108     }
       
   109 
       
   110 
       
   111 // ---------------------------------------------------------------------------
       
   112 // CNSPStateActivating::DoApplyL
       
   113 // ---------------------------------------------------------------------------
       
   114 //
       
   115 void CNSPStateActivating::DoApplyL( TNSPStateMachineEvent& aEvent )
       
   116     {
       
   117     switch( aEvent.Request() )
       
   118         {
       
   119         case TNSPStateMachineEvent::ENat:
       
   120             {
       
   121             ControlMediaL( aEvent );
       
   122             break;
       
   123             }
       
   124         
       
   125         case TNSPStateMachineEvent::EUpdate:
       
   126             {
       
   127             ApplyUpdateL( aEvent );
       
   128             break;
       
   129             }
       
   130         
       
   131         case TNSPStateMachineEvent::EReservationStatus:
       
   132         case TNSPStateMachineEvent::ECloseSession:
       
   133             {
       
   134             aEvent.Status() = KNatReady;
       
   135             break;
       
   136             }
       
   137         
       
   138         default:
       
   139             {
       
   140             User::Leave( KErrArgument );
       
   141             }
       
   142         }
       
   143     }
       
   144 
       
   145 
       
   146 // ---------------------------------------------------------------------------
       
   147 // CNSPStateActivating::DoExitL
       
   148 // ---------------------------------------------------------------------------
       
   149 //
       
   150 void CNSPStateActivating::DoExitL( TNSPStateMachineEvent& aEvent )
       
   151     {
       
   152     switch( aEvent.Request() )
       
   153         {
       
   154         case TNSPStateMachineEvent::ENat:
       
   155             {
       
   156             break;
       
   157             }
       
   158             
       
   159         default:
       
   160             {
       
   161             User::Leave( KErrArgument );
       
   162             }
       
   163         }
       
   164     }
       
   165 
       
   166 
       
   167 // ---------------------------------------------------------------------------
       
   168 // CNSPStateActivating::ControlMediaL
       
   169 // ---------------------------------------------------------------------------
       
   170 //
       
   171 void CNSPStateActivating::ControlMediaL( TNSPStateMachineEvent& aEvent ) const
       
   172 	{
       
   173 	TNSPStateMachineMediaEvent& event = MEDIAEVENT( aEvent );
       
   174     TNatReturnStatus status = event.Session().Actions().ControlMediaL(
       
   175     		event.StreamId(), event.Event(), event.Status(), event.Data() );
       
   176     
       
   177     if ( NSP_TRIGGER( status ) )
       
   178     	{
       
   179     	ApplyNatL( event );
       
   180     	}
       
   181     else
       
   182     	{
       
   183     	event.Status() = status;
       
   184     	}
       
   185 	}
       
   186 
       
   187 
       
   188 // ---------------------------------------------------------------------------
       
   189 // CNSPStateActivating::ApplyNatL
       
   190 // ---------------------------------------------------------------------------
       
   191 //
       
   192 void CNSPStateActivating::ApplyNatL( TNSPStateMachineEvent& aEvent ) const
       
   193     {
       
   194     CNSPSession& session = aEvent.Session();
       
   195     CSdpDocument* doc = ( OFFERER( session.Role() ) ? &session.Data().Answer() :
       
   196             ( ANSWERER( session.Role() ) ? &session.Data().Offer() : NULL ) );
       
   197 
       
   198     __ASSERT_ALWAYS( doc, User::Leave( KErrArgument ) );
       
   199     session.Actions().LocalRoundL( *doc );
       
   200     
       
   201     aEvent.NextState() = KStateIndexConnected;
       
   202     }
       
   203 
       
   204 
       
   205 // ---------------------------------------------------------------------------
       
   206 // CNSPStateActivating::ApplyUpdateL
       
   207 // ---------------------------------------------------------------------------
       
   208 //
       
   209 void CNSPStateActivating::ApplyUpdateL( TNSPStateMachineEvent& aEvent ) const
       
   210     {
       
   211     CNSPSession& session = aEvent.Session();
       
   212     CSdpDocument* offer = aEvent.Offer();
       
   213     
       
   214     if ( KNatAsync == session.Actions().GetCandidatesL( *offer ) )
       
   215         {
       
   216         session.Actions().UpdateL();
       
   217         }
       
   218     
       
   219     aEvent.Status() = KNatAsync;
       
   220     }
       
   221 
       
   222 // end of file