Lease_Impl.h

Go to the documentation of this file.

#include "LeasingS.h"

class Lease_Impl : public POA_Lease
{
public:

  Lease_Impl (TimeBase::TimeT expiration_time,
              LookupService_ptr lookup_service,
              const CosNaming::Name &name,
              LeaseHolder_ptr lease_holder)
    : lookup_service_ ( LookupService::_duplicate (lookup_service)), 
      lease_holder_ (LeaseHolder::_duplicate (lease_holder)),
      expiration_time_ (expiration_time), 
      name_ (name), 
      valid_lease_ (TRUE)
  {
  }
  
  void renew (TimeBase::TimeT duration)
    throw (InvalidDuration)
  {
    TimeBase::TimeT accepted_duration = 
      lookup_service_->prolong_lease (this->_this (), duration);
    
    if (accepted_duration != 0)
      {
        expiration_time_ = current_time () + accepted_duration;
        valid_lease_ = TRUE;
      }
  }

  TimeBase::TimeT get_remaining_time ()
  {
    if (valid_lease_)
      return expiration_time_-current_time ();
    else
      return 0;
  }

  void expired () 
  {
    valid_lease_ = FALSE;
  }
  
  LeaseHolder_ptr get_lease_holder ()
  {
    return LeaseHolder::_duplicate (lease_holder_);
  }
  
  CosNaming::Name *get_name ()
  {
    return &name_;
  }
  
private:
  
  TimeBase::TimeT current_time ()
  {
    
  }
  
  LookupService_var lookup_service_;
  LeaseHolder_var lease_holder_;
  TimeBase::TimeT expiration_time_;
  CosNaming::Name name_;
  bool valid_lease_;
};

These pages document the source code of the patterns Lookup, Eager Acquisition, and Leasing.

Copyright 2004 John Wiley and Sons. All Rights Reserved.