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BUG#: 5485
TITLE: Simplify idle provider detection logic
DESCRIPTION: Move the tracking of the last activity time from the CIMOMHandle to the provider manager.  Remove the unused pending_operation() methods from the CIMOMHandle and provider managers.  Remove the unnecessary CIMOMHandleOpSemaphore class and its uses.  Simplify the Mutex lock requirements in the DefaultProviderManager.  Consolidate the provider unloading logic in the DefaultProviderManager.  Remove the pm_service_op_lock and op_counter classes, consolidating the operation counting in the ProviderOperationCounter class.  Augment the ProviderStatus interface to remove the need for friend relationships

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#ifndef Pegasus_CIMOMHandleRep_h
#define Pegasus_CIMOMHandleRep_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/Mutex.h>
#include <Pegasus/Common/OperationContext.h>
#include <Pegasus/Common/CIMObject.h>
#include <Pegasus/Common/CIMObjectPath.h>
#include <Pegasus/Common/CIMClass.h>
#include <Pegasus/Common/CIMInstance.h>
#include <Pegasus/Common/CIMPropertyList.h>
#include <Pegasus/Common/CIMParamValue.h>
#include <Pegasus/Common/Sharable.h>
#include <Pegasus/Common/InternalException.h>
#include <Pegasus/Provider/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

class PEGASUS_PROVIDER_LINKAGE CIMOMHandleRep : public Sharable
{
public:
    /** */
    CIMOMHandleRep();

    /** */
    virtual ~CIMOMHandleRep();

    virtual CIMClass getClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList) = 0;

    virtual Array<CIMClass> enumerateClasses(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean deepInheritance,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin) = 0;

    virtual Array<CIMName> enumerateClassNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean deepInheritance) = 0;

    virtual void createClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMClass& newClass) = 0;

    virtual void modifyClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMClass& modifiedClass) = 0;

    virtual void deleteClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className) = 0;

    virtual CIMInstance getInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList) = 0;

    virtual Array<CIMInstance> enumerateInstances(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean deepInheritance,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList) = 0;

    virtual Array<CIMObjectPath> enumerateInstanceNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className) = 0;

    virtual CIMObjectPath createInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMInstance& newInstance) = 0;

    virtual void modifyInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMInstance& modifiedInstance,
        Boolean includeQualifiers,
        const CIMPropertyList& propertyList) = 0;

    virtual void deleteInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName) = 0;

    virtual Array<CIMObject> execQuery(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const String& queryLanguage,
        const String& query) = 0;

    virtual Array<CIMObject> associators(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& assocClass,
        const CIMName& resultClass,
        const String& role,
        const String& resultRole,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList) = 0;

    virtual Array<CIMObjectPath> associatorNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& assocClass,
        const CIMName& resultClass,
        const String& role,
        const String& resultRole) = 0;

    virtual Array<CIMObject> references(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& resultClass,
        const String& role,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList) = 0;

    virtual Array<CIMObjectPath> referenceNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& resultClass,
        const String& role) = 0;

    // property operations
    virtual CIMValue getProperty(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        const CIMName& propertyName) = 0;

    virtual void setProperty(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        const CIMName& propertyName,
        const CIMValue& newValue) = 0;

    virtual CIMValue invokeMethod(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        const CIMName& methodName,
        const Array<CIMParamValue>& inParameters,
        Array<CIMParamValue>& outParameters) = 0;

    /**
        Provides a hint to the CIM Server that the provider calling this
        method prefers not to be unloaded.  This hint applies in
        situations where a provider unload is not necessary, such as
        when the CIM Server unloads idle providers for efficiency reasons.
        A provider may rescind this hint by using the allowProviderUnload
        method.  Note that disallowProviderUnload is cumulative, such that
        each call to disallowProviderUnload must be matched with a call to
        allowProviderUnload.
     */
    virtual void disallowProviderUnload();

    /**
        Provides a hint to the CIM Server that the provider calling this
        method no longer prefers not to be unloaded.  This hint applies in
        situations where a provider unload is not necessary, such as
        when the CIM Server unloads idle providers for efficiency reasons.
        This method is used to rescind a hint that was given using the
        disallowProviderUnload method.  Note that each allowProviderUnload
        call should be preceded by a disallowProviderUnload call.
     */
    virtual void allowProviderUnload();

#ifdef PEGASUS_USE_EXPERIMENTAL_INTERFACES
    /**
        Returns the context of the response to the last request.
        Currently, the context only contains the ContentLanguageListContainer
        from the response.
        Note: this method should be called directly after the call to the
        CIM request method (getClass, etc), and can only be called once
        per request.
     */
    virtual OperationContext getResponseContext() = 0;
#endif

#ifdef PEGASUS_OS_OS400
    virtual void setOS400ProfileHandle(const char* profileHandle) = 0;
#endif

    virtual Boolean unload_ok();

private:      
    Uint32 _providerUnloadProtect;
    Mutex _providerUnloadProtectMutex;
};

PEGASUS_NAMESPACE_END

#endif