//%/////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM,
// The Open Group, Tivoli Systems
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//==============================================================================
//
// Author: Chip Vincent (cvincent@us.ibm.com)
//
// Modified By: Yi Zhou, Hewlett-Packard Company(yi_zhou@hp.com)
//              Jenny Yu, Hewlett-Packard Company(jenny_yu@hp.com)
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_ProviderManager_h
#define Pegasus_ProviderManager_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/String.h>
#include <Pegasus/Common/IPC.h>

#include <Pegasus/ProviderManager/Lockable.h>
#include <Pegasus/ProviderManager/Provider.h>

PEGASUS_NAMESPACE_BEGIN

class PEGASUS_SERVER_LINKAGE ProviderManager
{
public:
    ProviderManager(void);
    virtual ~ProviderManager(void);

public:
    Provider getProvider(const String & fileName, const String & providerName,
                         const String & interfaceName = String::EMPTY);

    void loadProvider(const String & fileName, const String & providerName,
                         const String & interfaceName = String::EMPTY);
    void unloadProvider(const String & fileName, const String & providerName);

    void shutdownAllProviders(void);

private:
    //Provider _loadProvider(const String & fileName, const String & providerName,
    //                     const String & interfaceName = String::EMPTY);

protected:
    Mutex _mutex;
    Array<Provider> _providers;
    Array<ProviderModule> _modules;

    void _getRefCount(const String & fileName, Uint32 & refCount);
    void _updateRefCount(const String & fileName, const Uint32 & refCount);
};

PEGASUS_NAMESPACE_END

#endif