serversubscription.hxx

这是国外的resip协议栈

#if !defined(RESIP_SERVERSUBSCRIPTION_HXX)
#define RESIP_SERVERSUBSCRIPTION_HXX

#include "resip/dum/BaseSubscription.hxx"

namespace resip
{

class DialogUsageManager;

//!dcm! -- no Subscription State expires parameter generation yet. 
class ServerSubscription : public BaseSubscription 
{
   public:
      typedef Handle<ServerSubscription> ServerSubscriptionHandle;
      ServerSubscriptionHandle getHandle();

      const Data& getSubscriber() const { return mSubscriber; }
     
      //only 200 and 202 are permissable.  SubscriptionState is not affected.
      //currently must be called for a refresh as well as initial creation.
      SharedPtr<SipMessage> accept(int statusCode = 202);
      SharedPtr<SipMessage> reject(int responseCode);

      //used to accept a reresh when there is no useful state to convey to the
      //client     
      SharedPtr<SipMessage> neutralNotify();
      
      void setSubscriptionState(SubscriptionState state);

      SharedPtr<SipMessage> update(const Contents* document);
      void end(TerminateReason reason, const Contents* document = 0);

      virtual void end();
      virtual void send(SharedPtr<SipMessage> msg);

//      void setTerminationState(TerminateReason reason);
//      void setCurrentEventDocument(const Contents* document);

      virtual void dispatch(const SipMessage& msg);
      virtual void dispatch(const DumTimeout& timer);

      virtual std::ostream& dump(std::ostream& strm) const;

   protected:
      virtual ~ServerSubscription();
      virtual void dialogDestroyed(const SipMessage& msg);           
      void onReadyToSend(SipMessage& msg);
      
   private:
      friend class Dialog;
      
      ServerSubscription(DialogUsageManager& dum, Dialog& dialog, const SipMessage& req);

      void makeNotifyExpires();
      void makeNotify();    
      
      UInt32 getTimeLeft();

      bool shouldDestroyAfterSendingFailure(const SipMessage& msg);      

      Data mSubscriber;

//      const Contents* mCurrentEventDocument;
      SipMessage mLastSubscribe;

      UInt32 mExpires;

      // disabled
      ServerSubscription(const ServerSubscription&);
      ServerSubscription& operator=(const ServerSubscription&);
      UInt64 mAbsoluteExpiry;      
};
 
}

#endif

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