OW_LifecycleIndicationPoller.hpp

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#ifndef OW_LIFE_CYCLE_INDICATION_POLLER_HPP_INCLUDE_GUARD_
#define OW_LIFE_CYCLE_INDICATION_POLLER_HPP_INCLUDE_GUARD_
#include "OW_config.h"
#include "OW_String.hpp"
#include "OW_CIMInstance.hpp"
#include "OW_CppPolledProviderIFC.hpp"
#include "OW_Mutex.hpp"

namespace OW_NAMESPACE
{

class LifecycleIndicationPoller : public CppPolledProviderIFC
{
public:
   LifecycleIndicationPoller(const String& ns, const CIMName& className,
      UInt32 pollInterval);
   virtual Int32 getInitialPollingInterval(const ProviderEnvironmentIFCRef &env);
   virtual Int32 poll(const ProviderEnvironmentIFCRef &env);
   // used to determine what types of indications to create
   enum PollOp
   {
      POLL_FOR_INSTANCE_CREATION,
      POLL_FOR_INSTANCE_MODIFICATION,
      POLL_FOR_INSTANCE_DELETION
   };
   // takes a POLL_FOR_INSTANCE* flag and indicates a provider has requested
   // we poll for it.
   void addPollOp(PollOp op);
   // takes a POLL_FOR_INSTANCE* flag and indicates a provider has requested
   // we poll for it, and the subscription was removed.
   // returns !willPoll().
   bool removePollOp(PollOp op);
   // returns true if the there are any poll operations to do
   bool willPoll() const;
   // a new poll interval will be considered.  The new interval will be the
   // min of newPollInterval and the current poll interval.  The new interval
   // is returned.
   UInt32 addPollInterval(UInt32 newPollInterval);
private:
   UInt32 getPollInterval() const;
   String m_ns;
   CIMName m_classname;
   UInt32 m_pollInterval;
   UInt32 m_pollCreation;
   UInt32 m_pollModification;
   UInt32 m_pollDeletion;
   mutable Mutex m_guard;
   CIMInstanceArray m_prevInsts;
   bool m_initializedInstances;
};

} // end namespace OW_NAMESPACE

#endif

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