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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_CIMOMHandle_h
#define Pegasus_CIMOMHandle_h

#include <Pegasus/Common/Config.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/ResponseHandler.h>
#include <Pegasus/Provider/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

#ifdef PEGASUS_OS_OS400
class CIMProviderOS400UserState;
class CIMProviderOS400SystemState;
#endif

class CIMOMHandleRep;

class PEGASUS_PROVIDER_LINKAGE CIMOMHandle
{
   public:

      /** */
      CIMOMHandle(void);

      CIMOMHandle(const CIMOMHandle &);

      /** */
      ~CIMOMHandle(void);

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

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

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

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

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

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

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

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

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

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

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

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

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

      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);

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

      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);

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

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

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

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

      /**
          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.
       */
      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.
       */
      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.
       */
      OperationContext getResponseContext(void);
#endif

   private:      
      CIMOMHandleRep* _rep;

      friend class ProviderStatus;
      friend class CMPIProvider;
#ifdef PEGASUS_OS_OS400
      friend class CIMProviderOS400UserState;
      CIMOMHandle(Uint32 os400UserStateKey);

      friend class CIMProviderOS400SystemState;
      void setOS400ProfileHandle(const char * profileHandle);
#endif
      Boolean unload_ok(void);
};

PEGASUS_NAMESPACE_END

#endif