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/**
* @author Marcel Smit (msmit@remedy.nl)
*
* $Id$
*
* Wrapper facade for NDDS.
*/
#ifndef WAITSET_H_
#define WAITSET_H_
#include "dds4ccm/idl/ndds/ndds_dcpsC.h"
#include "tao/LocalObject.h"
#include "dds4ccm/impl/ndds/dds4ccm_ndds_export.h"
class DDSWaitSet;
struct DDSConditionSeq;
namespace CIAO
{
namespace NDDS
{
/**
* @class DDS_WaitSet_i
*
* @brief Representative (proxy) class for the RTI waitset.
*
* Implementation of the RTI waitset functionality.
*/
class DDS4CCM_NDDS_Export DDS_WaitSet_i :
public virtual ::DDS::WaitSet,
public virtual ::CORBA::LocalObject
{
public:
/// Constructor
DDS_WaitSet_i ();
/// Destructor
virtual ~DDS_WaitSet_i (void);
/**
* Waits for DDS until the attached read/query conditions are met
* or when a timeout occurs.
*
* active_conditions will contain conditions DDS has found.
*/
virtual ::DDS::ReturnCode_t
wait (::DDS::ConditionSeq & active_conditions,
const ::DDS::Duration_t & timeout);
/**
* Attaches a condition to the waitset. 'wait' will be waiting for
* this condition.
*/
virtual ::DDS::ReturnCode_t
attach_condition (::DDS::Condition_ptr cond);
/**
* Detaches a condition from the waitset. 'wait' won't be waiting
* for this condition anymore.
*/
virtual ::DDS::ReturnCode_t
detach_condition (::DDS::Condition_ptr cond);
/**
* Retrieves a list of attached conditions.
*/
virtual ::DDS::ReturnCode_t
get_conditions (::DDS::ConditionSeq & attached_conditions);
/**
* Returns the RTI waitset
*/
DDSWaitSet * get_rti_entity (void);
/**
* Used in the Reader in order to check whether whether the
* user has supplied the correct handle with the type specific
* instance. See Reader_T::read_one_last and the DDS4CCM spec
* for more info.
*
* Checks whether two DDS-handles are equal. If no error
* occurs and the lookup_handle exists, this method will return
* the lookup_handle.
*
* @todp We actually want this method to be in the DDS4CCM
* connector but since we're not allowed to use RTI specific code
* there it's located here.
*
* 'error' will be true if instance_handle != DDS_HANDLE_NIL and
* when instance_handle != lookup_handle.
*
* non_existent will be true is lookup_hnd is DDS_HANDLE_NIL
*/
::DDS::InstanceHandle_t
check_handle (const ::DDS::InstanceHandle_t & instance_handle,
const ::DDS::InstanceHandle_t & lookup_handle,
bool & error,
bool & non_existent);
/**
* Creates the RTI waitset.
*/
void init (void);
private:
DDSWaitSet * rti_entity_;
DDSWaitSet * rti_entity ();
/**
* Converts the RTI condition(s) to the DDS4CCM condition(s)
*/
void
convert_conditions (const DDSConditionSeq& dds_conditions,
::DDS::ConditionSeq & conditions);
};
}
}
#endif /* WAITSET_H_ */
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