networkcontrol/ipnetworklayer/src/ItfInfoConfigExt.cpp
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     1 // Copyright (c) 2005-2009 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 "ItfInfoConfigExt.h"
       
    22 #include <comms-infras/metatype.h>
       
    23 
       
    24 using namespace Meta;
       
    25 
       
    26 START_ATTRIBUTE_TABLE(TItfInfoConfigExt, KIpProtoConfigExtUid, EItfInfoConfigExt)
       
    27     // No attributes registered as no serialisation takes place.
       
    28 END_ATTRIBUTE_TABLE()
       
    29 
       
    30 START_ATTRIBUTE_TABLE(XInterfaceNames, KIpProtoConfigExtUid, EInterfaceName)
       
    31 	// No attributes registered as no serialisation takes place.
       
    32 END_ATTRIBUTE_TABLE()
       
    33 
       
    34 const TUint KMaxInterfaceNames = 10;
       
    35 
       
    36 XInterfaceNames* XInterfaceNames::NewL()
       
    37 	{
       
    38 	XInterfaceNames* self = new(ELeave) XInterfaceNames();
       
    39 	
       
    40 	CleanupStack::PushL(self);
       
    41 	self->ConstructL();	
       
    42 	CleanupStack::Pop(self);
       
    43 	
       
    44 	return self;
       
    45 	}
       
    46 
       
    47 void XInterfaceNames::ConstructL()
       
    48 	{
       
    49 	iInterfaceNames.ReserveL(KMaxInterfaceNames);
       
    50 	User::LeaveIfError(iLock.CreateLocal());
       
    51 	}
       
    52 
       
    53 XInterfaceNames::~XInterfaceNames()
       
    54 	{
       
    55 	iInterfaceNames.Close();
       
    56 	iLock.Close();	
       
    57 	}
       
    58 
       
    59 /**
       
    60 	Retrieves an interface name from the store.
       
    61 	
       
    62 	@param aIndex The index of the interface name to retrieve.
       
    63 	@param aInterfaceName The buffer to be populated with the name of the interface.
       
    64 */
       
    65 TInt XInterfaceNames::InterfaceName(TUint aIndex, TInterfaceName& aInterfaceName)
       
    66 	{
       
    67 	iLock.Wait();
       
    68 		{	
       
    69 		if(aIndex >= iInterfaceNames.Count() || aIndex >= KMaxInterfaceNames)
       
    70 			{
       
    71 			iLock.Signal();
       
    72 			return KErrArgument;
       
    73 			}
       
    74 		aInterfaceName = iInterfaceNames[aIndex].iName;
       
    75 		}
       
    76 	iLock.Signal();
       
    77 	
       
    78 	return KErrNone;
       
    79 	}
       
    80 
       
    81 /**
       
    82 	Adds an interface name to the store.
       
    83 	
       
    84 	@param aInterfaceName The name of the interface.
       
    85 	@leave A system-wide error code if the interface name could not be stored.
       
    86 */
       
    87 void XInterfaceNames::AddInterfaceNameL(const TAny* aOwner, const TInterfaceName& aInterfaceName)
       
    88 	{
       
    89 	TInt ret = KErrNone;
       
    90 	
       
    91 	iLock.Wait();
       
    92 		{
       
    93 		if(iInterfaceNames.Count() >= KMaxInterfaceNames)
       
    94 			{
       
    95 			iLock.Signal();
       
    96 			User::Leave(KErrOverflow);
       
    97 			}
       
    98 		
       
    99 		ret = iInterfaceNames.Append(TNameAndOwner(aOwner, aInterfaceName));
       
   100 		}
       
   101 	iLock.Signal();
       
   102 	
       
   103 	User::LeaveIfError(ret);
       
   104 	}
       
   105 	
       
   106 /**
       
   107 	Removes all interfacesName entries matching the supplied owner.
       
   108 	
       
   109 	@param aOwner The owner of the entry
       
   110 */
       
   111 void XInterfaceNames::RemoveInterfaceName(const TAny* aOwner)
       
   112 	{
       
   113 	iLock.Wait();
       
   114 		{
       
   115 		for(TUint i=0;i<iInterfaceNames.Count();i++)
       
   116 			{
       
   117 			if(iInterfaceNames[i].iOwner == aOwner)
       
   118 				{
       
   119 				iInterfaceNames.Remove(i);
       
   120 				}
       
   121 			}
       
   122 		}
       
   123 	iLock.Signal();
       
   124 	}