1 // Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // TraceCore Plugin Interface

    15 // 

    16 

    17 //- Include Files  ----------------------------------------------------------

    18 

    19 #include "TraceCorePluginIf.h" 

    20 #include "TraceCoreDebug.h"

    21 #include "TraceCoreMediaIfCallback.h"

    22 #include "TraceCoreMediaPlugin.h"

    23 #include "TraceCoreSubscriber.h"

    24 #include "OstTraceDefinitions.h"

    25 #ifdef OST_TRACE_COMPILER_IN_USE

    26 #include "TraceCorePluginIfTraces.h"

    27 #endif

    28 

    29 

    30 /**

    31  * Constructor

    32  */

    33 DTraceCorePluginIf::DTraceCorePluginIf()

    34 : DTraceCoreMediaIf( KMediaIfSendSupported | KMediaIfPluginSupported )

    35 , iMediaPlugin( NULL )

    36     {

    37     }

    38 

    39 

    40 /**

    41  * Destructor

    42  */

    43 DTraceCorePluginIf::~DTraceCorePluginIf()

    44     {

    45     iMediaPlugin = NULL;

    46     }

    47 

    48 

    49 /**

    50  * Initializes the plugin IF

    51  *

    52  * @param aCallBack Callback to TraceCore

    53  */

    54 TInt DTraceCorePluginIf::Init( MTraceCoreMediaIfCallback& aCallback )

    55     {

    56     iCallback = &aCallback;

    57     return KErrNone;

    58     }

    59 

    60 /**

    61  * Sends messages to plug-in

    62  * 

    63  * @param aMsg Message to be sent.

    64  * @return KErrNone if send successful

    65  */

    66 TInt DTraceCorePluginIf::Send( TTraceMessage& aMsg )

    67     {

    68     OstTraceExt1( TRACE_FLOW, DTRACECOREPLUGINIF_SEND_ENTRY, "> DTraceCorePluginIf::Send. MsgId:0x%hhx", aMsg.iMessageId );

    69     TInt retval = KErrNotSupported;

    70     if ( iMediaPlugin != NULL )

    71         {

    72         retval = iMediaPlugin->SendMessage( aMsg );

    73         }

    74     OstTrace1( TRACE_FLOW, DTRACECOREPLUGINIF_SEND_EXIT, "< DTraceCorePluginIf::Send %d", retval );

    75     return retval;

    76     }

    77     

    78 

    79 /**

    80  * Message was received by plug-in

    81  * 

    82  * @param aMsg The message that was received

    83  */

    84 void DTraceCorePluginIf::MessageReceived( TTraceMessage &aMsg )

    85     {

    86     OstTraceExt1( TRACE_FLOW, DTRACECOREPLUGINIF_MESSAGERECEIVED_ENTRY, "> DTraceCorePluginIf::MessageReceived. MsgId:0x%hhx", aMsg.iMessageId );

    87     if ( iCallback != NULL )

    88         {

    89         iCallback->SetSenderMedia( this ); // Added for SPLIT

    90         iCallback->MessageReceived( aMsg );

    91         }

    92     }

    93 

    94 

    95 /**

    96  * Registers a media Plug-In

    97  */

    98 TInt DTraceCorePluginIf::RegisterPlugin( DTraceCoreMediaPlugin& aPlugin )

    99     {

   100     OstTrace1( TRACE_FLOW, DTRACECOREPLUGINIF_REGISTERPLUGIN_ENTRY, "> DTraceCorePluginIf::RegisterPlugin 0x%x", ( TUint )&( aPlugin ) );

   101     TInt retval = KErrNone;

   102     

   103     // Register given media Plug-In

   104     if ( iMediaPlugin == NULL )

   105         {

   106         iMediaPlugin = &aPlugin;

   107         retval = KErrNone;

   108         }

   109     

   110     // Plug-In was already registered

   111     else

   112         {

   113         retval = KErrNotSupported;

   114         }

   115     OstTrace1( TRACE_FLOW, DTRACECOREPLUGINIF_REGISTERPLUGIN_EXIT, "< DTraceCorePluginIf::RegisterPlugin %d", retval );

   116     

   117     return retval;

   118     }

   119 

   120 

   121 /**

   122  * Unregisters a media Plug-In

   123  */

   124 void DTraceCorePluginIf::UnregisterPlugin( DTraceCoreMediaPlugin& aPlugin )

   125     {

   126     OstTrace1( TRACE_FLOW, DTRACECOREPLUGINIF_UNREGISTERPLUGIN_ENTRY, "> DTraceCorePluginIf::UnregisterPlugin 0x%x", ( TUint )&( aPlugin ) );

   127     

   128     // Unregister given media Plug-In

   129     if ( iMediaPlugin == &aPlugin )

   130         {

   131         OstTrace1( TRACE_NORMAL, DTRACECOREPLUGINIF_UNREGISTERPLUGIN_UNREGISTERED, "DTraceCorePluginIf::UnregisterPlugin - Plugin unregistered 0x%x", ( TUint )&( aPlugin ) );

   132         iMediaPlugin = NULL;

   133         }

   134     }

   135 

   136 // End of File