#ifndef _BALANCE_H_
#define _BALANCE_H_

#define MY_PLUGIN_VERSION    0
#define MY_DESCRIPTION       "Blance Plug-in: Dynamically balances load across a number of HelixDNA streaming servers."

#define SPREAD_GROUP	"helix"
                                  
class CBalance : public IHXPlugin, public IHXPropWatchResponse, public IHXCallback
{
public:
    CBalance (void);
 
    /*
     *  IHXPlugin Interface Methods
     */
    STDMETHOD(GetPluginInfo)
	    (THIS_ 
	      REF(BOOL)        bLoadMultiple,
	      REF(const char*) pDescription,
	      REF(const char*) pCopyright,
	      REF(const char*) pMoreInfoURL,
	      REF(UINT32)      ulVersionNumber
	    );
    STDMETHOD(InitPlugin) (THIS_ IUnknown* pContext);

    /*
     *  IUnknown COM Interface Methods
     */
    STDMETHOD (QueryInterface ) (THIS_ REFIID ID, void** ppInterfaceObj);
    STDMETHOD_(UINT32, AddRef ) (THIS);
    STDMETHOD_(UINT32, Release) (THIS);

    /*
	 * IHXPropWatchResponse Interface Methods 
	 */
	STDMETHOD(AddedProp) (
	    THIS_
	    const UINT32 id,
	    const HXPropType propType,
	    const UINT32 ulParentID
	);
	
	STDMETHOD(DeletedProp) (
	    THIS_
	    const UINT32 id,
	    const UINT32 ulParentID
	);
	
	STDMETHOD(ModifiedProp) (
	    THIS_
	    const UINT32 id,
	    const HXPropType propType,
	    const UINT32 ulParentID
	);

    /************************************************************************
     * IHXCallback Interface Methods
     */
    STDMETHOD (Func) (THIS);


 private:

    ~CBalance(void);

    INT32		            m_RefCount;		// Object's reference count
    IHXCommonClassFactory*  m_pClassFactory;// Creates common Helix classes
    IHXRegistry*	        m_pRegistry;	// Accesses server registry
    IHXPropWatch*			m_pPropWatch;	// Keep an eye on the registry
    IHXScheduler*   m_pScheduler; // Lets call outselves back

    static const char*      zm_pDescription;
    static const char*      zm_pCopyright;
    static const char*      zm_pMoreInfoURL;

	mailbox					m_mbox;
	char					m_private_group[MAX_GROUP_NAME];
	bool					sp_connected;

    PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME       // Avoids GCC compiler warning
};

#endif  /* ifndef _BALANCE_H_ */