datacommsserver/esockserver/ssock/ss_commsdataobject.cpp
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     1 // Copyright (c) 2006-2009 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 //
       
    15 
       
    16 /**
       
    17  @file
       
    18  @internalTechnology
       
    19 */
       
    20 
       
    21 #include "ss_commsdataobject.h"
       
    22 
       
    23 #include <comms-infras/ss_log.h>
       
    24 
       
    25 #include <comms-infras/api_ext_list.h>
       
    26 #include <es_sock.h>
       
    27 #include <comms-infras/es_parameterbundle.h>
       
    28 #include <comms-infras/es_commsdataobject.h>
       
    29 
       
    30 using namespace ESock;
       
    31 using namespace Messages;
       
    32 
       
    33 TBool TGetOrSetParameters::CanProcess(MeshMachine::TNodeContextBase& aContext)
       
    34 	{
       
    35 	TUint interfaceId = (*iDataObject)->RequiredItfExtId();
       
    36 	return HasInterface(aContext, (TSupportedCommsApiExt)interfaceId);
       
    37 	}
       
    38 
       
    39 void TGetOrSetParameters::ForwardL(MeshMachine::TNodeContextBase& aContext)
       
    40 	{
       
    41 	TUint interfaceId = (*iDataObject)->RequiredItfExtId();
       
    42 	RLegacyResponseMsg responseMsg(aContext, iMessage, iMessage.Int0());
       
    43 	TRAPD(err, ForwardRequestL(aContext));
       
    44 	if(err == KErrNotFound)
       
    45 		{
       
    46 		// We've reached the bottom of the stack, so complete the message
       
    47 		if ((*iDataObject)->IsProgressive())
       
    48 			{
       
    49 			// If the data object was progressive (meaning it traverses the entire
       
    50 			// stack progressively building up information using all nodes that
       
    51 			// support its required interface) then we complete with KErrNone at
       
    52 			// the bottom...
       
    53 			__CFLOG_VAR((KESockComponentTag, KESockMessage,
       
    54 					_L8("TGetOrSetParameters::ForwardL() Node %08x implementing interface id 0x%08x completing message (%08X) with %d"),
       
    55 					&aContext.Node(), interfaceId, iMessage.Handle(), err));
       
    56 			responseMsg.Complete(KErrNone);
       
    57 			}
       
    58 		else
       
    59 			{
       
    60 			// ...if on the other hand the data object was not progressive
       
    61 			// hitting the bottom of the stack means it didn't find any
       
    62 			// nodes that supporting its required interface. In thay case
       
    63 			// we complete with KErrNotFound
       
    64 			User::Leave(KErrNotFound);
       
    65 			}
       
    66 		return;
       
    67 		}
       
    68 	User::LeaveIfError(err);
       
    69 	}
       
    70 
       
    71 void TGetOrSetParameters::ProcessL(MeshMachine::TNodeContextBase& aContext)
       
    72 	{
       
    73 	TAny* interface = NULL;
       
    74 	TUint interfaceId = (*iDataObject)->RequiredItfExtId();
       
    75 	TRAPD(err, interface = FetchInterfaceL(aContext.Node(), (TSupportedCommsApiExt)interfaceId));
       
    76 	ASSERT(interface);
       
    77 	
       
    78 	RLegacyResponseMsg responseMsg(aContext, iMessage, iMessage.Int0());
       
    79 	User::LeaveIfError(err);
       
    80 
       
    81     if (interface)
       
    82     	{
       
    83     	XCommsDataObject::TProgressAction action(XCommsDataObject::EComplete);
       
    84     	TRAP(err, action = (*iDataObject)->DispatchL(interface, this));
       
    85 		if (err != KErrNone)
       
    86 			{
       
    87             NM_LOG_START_BLOCK(KESockMessage, _L8("TGetOrSetParameters::ProcessL()"));
       
    88             NM_LOG((KESockMessage, _L8("Node implementing interface id 0x%08x failed with %d"), interfaceId, err));
       
    89             NM_LOG_NODE(KESockMessage, aContext.Node().Id().Node());
       
    90             NM_LOG_END_BLOCK(KESockMessage, _L8("TGetOrSetParameters::ProcessL()"));
       
    91                 
       
    92 			Complete(aContext, err);
       
    93 			return;
       
    94 			}
       
    95 
       
    96 		if ((action == XCommsDataObject::EComplete)
       
    97 			|| !(*iDataObject)->IsProgressive())
       
    98 			{
       
    99 			Complete(aContext, KErrNone);
       
   100 			return;
       
   101 			}
       
   102 
       
   103 	    // On successful handling of a progressive data object
       
   104 	    // forward the data object down to the next node
       
   105 	    TRAP(err, ForwardRequestL(aContext));
       
   106 
       
   107 		if(err == KErrNotFound)
       
   108 			{
       
   109 			// We've reached the bottom of the stack, so complete the message
       
   110 			Complete(aContext, KErrNone);
       
   111 			return;
       
   112 			}
       
   113 		User::LeaveIfError(err);
       
   114     	}
       
   115 	}
       
   116 
       
   117 TInt TGetOrSetParameters::CheckError(MeshMachine::TNodeContextBase& /*aContext*/, TInt aError)
       
   118 	{
       
   119 	// The query set container is owned by the CConnection that originated
       
   120     // this message - if an error occurs we need to delete it and NULL the
       
   121     // pointer
       
   122 	if (aError != KErrNone)
       
   123 		{
       
   124 		delete (*iDataObject);
       
   125 		*iDataObject = NULL;
       
   126 		}
       
   127 
       
   128 	return aError;
       
   129 	}
       
   130 
       
   131 void TGetOrSetParameters::Complete(MeshMachine::TNodeContextBase& aContext, TInt aError)
       
   132 	{
       
   133 	RLegacyResponseMsg responseMsg(aContext, iMessage, iMessage.Int0());
       
   134 	
       
   135 	__CFLOG_VAR((KESockComponentTag, KESockMessage,
       
   136 		_L8("TGetOrSetParameters::Complete() completing message (%08X) with %d"),
       
   137 		iMessage.Handle(), aError));
       
   138 
       
   139 	if ((*iDataObject)->OperationMode() == XCommsDataObject::EOperationSet)
       
   140 		{
       
   141 		// Done with the object
       
   142 		delete (*iDataObject);
       
   143 		*iDataObject = NULL;
       
   144 		}
       
   145 
       
   146 	responseMsg.Complete(aError);
       
   147 	}
       
   148 
       
   149