1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/lowlevellibsandfws/pluginfw/Framework/Example/CachedCustomResolver.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,136 @@
     1.4 +// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +/**
    1.20 + @file
    1.21 + @internalComponent
    1.22 +*/
    1.23 +
    1.24 +#include "CachedCustomResolver.h"
    1.25 +#include <ecom/implementationproxy.h>
    1.26 +#include <ecom/ecomerrorcodes.h>
    1.27 +
    1.28 +/**
    1.29 +This function is used for cleanup support of ListAllL call.
    1.30 +*/
    1.31 +LOCAL_C void CleanupEComPtrArray(TAny* aArray)
    1.32 +	{
    1.33 +	RImplInfoArray* self = static_cast<RImplInfoArray*>(aArray);
    1.34 +	self->Reset();
    1.35 +	delete self;
    1.36 +	}
    1.37 +
    1.38 +// static factory method to instantiate the resolver.
    1.39 +CExampleResolver* CExampleResolver::NewL(MPublicRegistry& aRegistry)
    1.40 +	{
    1.41 +	CExampleResolver* self = new(ELeave) CExampleResolver(aRegistry);
    1.42 +	(void)self->GetSignature();
    1.43 +	return self;
    1.44 +	}
    1.45 +
    1.46 +CExampleResolver::~CExampleResolver()
    1.47 +	{
    1.48 +	// nothing
    1.49 +	}
    1.50 +
    1.51 +CExampleResolver::CExampleResolver(MPublicRegistry& aRegistry)
    1.52 +: CResolver(aRegistry)
    1.53 +	{
    1.54 +	// nothing to do
    1.55 +	}
    1.56 +
    1.57 +// stub for the IdentifyImplementationL pure virtual
    1.58 +TUid CExampleResolver::IdentifyImplementationL(TUid aInterfaceUid, 
    1.59 +											   const TEComResolverParams&) const
    1.60 +	{
    1.61 +	RImplInfoArray& implementationsInfo = iRegistry.ListImplementationsL(aInterfaceUid);
    1.62 +	if (implementationsInfo.Count())
    1.63 +		{
    1.64 +		return implementationsInfo[0]->ImplementationUid();
    1.65 +		}
    1.66 +	return KNullUid;
    1.67 +	}
    1.68 +
    1.69 +// stub for the ListAllL pure virtual
    1.70 +RImplInfoArray* CExampleResolver::ListAllL(TUid aInterfaceUid, 
    1.71 +										   const TEComResolverParams&) const
    1.72 +	{
    1.73 +	TBool checkMyVersion = (aInterfaceUid == KCustomResolverInterfaceUid);
    1.74 +	TBool foundMyself = EFalse;
    1.75 +
    1.76 +	// Ownership of the returned pointer is passed back to the caller.
    1.77 +	// Hence need to new it.
    1.78 +	RImplInfoArray* retList = new(ELeave) RImplInfoArray;
    1.79 +	CleanupStack::PushL(TCleanupItem(CleanupEComPtrArray, retList));
    1.80 +
    1.81 +	RImplInfoArray& fullList = iRegistry.ListImplementationsL(aInterfaceUid);
    1.82 +	const TInt numImps = fullList.Count();
    1.83 +	for(TInt index = 0; index < numImps; ++index)
    1.84 +		{
    1.85 +		if (checkMyVersion)
    1.86 +			{
    1.87 +			VerifyVersionL(fullList[index], foundMyself);
    1.88 +			}
    1.89 +
    1.90 +		User::LeaveIfError(retList->Append(fullList[index]));
    1.91 +		}
    1.92 +
    1.93 +	if (checkMyVersion && !foundMyself)
    1.94 +		{
    1.95 +		RDebug::Print(_L("ECOM: error cachedcustomresolver not in list\n"));
    1.96 +		User::Leave(KEComErrMismatchedTags);
    1.97 +		}
    1.98 +
    1.99 +	// Reset the member variable because we are passing ownership back
   1.100 +	CleanupStack::Pop(retList);
   1.101 +	return retList;
   1.102 +	}
   1.103 +
   1.104 +//
   1.105 +// Used by test code in list request where the i/f UID is KCustomResolverInterfaceUid.
   1.106 +// This gives the custom resolver object a chance to check that the version listed
   1.107 +// in ECOM registry matches the current running object.
   1.108 +//
   1.109 +// param aImplInfo - the implementation object to check
   1.110 +// param aMe - output parameter to tell the call if 'this' is found
   1.111 +void CExampleResolver::VerifyVersionL(const CImplementationInformation* aImplInfo, TBool& aMe) const
   1.112 +	{
   1.113 +	const TUid KMyImplUid = {0x10009E12};
   1.114 +	if (aImplInfo->ImplementationUid() == KMyImplUid)
   1.115 +		{
   1.116 +		if (GetSignature() != aImplInfo->Version())
   1.117 +			{
   1.118 +			RDebug::Print(_L("ECOM: error registry has ver %d, binary has %d\n"), aImplInfo->Version(), GetSignature());
   1.119 +			// leave with un-used cwcode. But even if ECOM will use this in
   1.120 +			// the future, the code will not occur in a list request.
   1.121 +			User::Leave(KEComErrMismatchedTags);
   1.122 +			}
   1.123 +		aMe = ETrue; // found myself
   1.124 +		}
   1.125 +	}
   1.126 +
   1.127 +// __________________________________________________________________________
   1.128 +// Exported proxy for instantiation method resolution
   1.129 +// Define the interface UIDs
   1.130 +const TImplementationProxy ImplementationTable[] = 
   1.131 +	{
   1.132 +	IMPLEMENTATION_PROXY_ENTRY(0x10009E12, CExampleResolver::NewL)
   1.133 +	};
   1.134 +
   1.135 +EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
   1.136 +	{
   1.137 +	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
   1.138 +	return ImplementationTable;
   1.139 +	}