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// $Id$
// ============================================================================
//
// = LIBRARY
// orbsvcs
//
// = FILENAME
// CosEventComm.idl
//
// = DESCRIPTION
// EVENT SERVICE - described in CORBAservices: Common Object Services
// Specification, chapter 4.
// CosEventComm Module, page 4-8 includes the following interfaces:
// PushConsumer, PushSupplier, PullSupplier, PullConsumer
// The Event service description can be downloaded from
// ftp://www.omg.org/pub/docs/formal/97-11-02.idl
//
// = AUTHOR
// Pradeep Gore <pradeep@cs.wustl.edu>
//
// ============================================================================
#ifndef TAO_EVENTCOMM_IDL
#define TAO_EVENTCOMM_IDL
#pragma prefix "omg.org"
module CosEventComm
{
// = TITLE
// IDL module for the Corba Object Service for Event
// Communication.
exception Disconnected
{
// = TITLE
// If the event communication has already been disconnected, the
// Disconnected exception is raised.
};
interface PushConsumer
{
// = TITLE
// definition of the PushConsumer.
//
// = DESCRIPTION
// A push-style consumer supports the PushConsumer interface to
// receive event data.
void push (in any data) raises (Disconnected);
// A supplier communicates event data to the consumer by invoking
// the push operation and passing the event data as a parameter.
// If the event communication has already been disconnected, the
// Disconnected exception is raised.
void disconnect_push_consumer ();
// The disconnect_push_consumer operation terminates the event
// communication; it releases resources used at the consumer to
// support the event communication. The PushConsumer object
// reference is disposed.
};
interface PushSupplier
{
// = TITLE
// Definition of the PushSupplier.
//
// = DESCRIPTION
// A push-style supplier supports the PushSupplier interface.
void disconnect_push_supplier ();
// The disconnect_push_supplier operation terminates the event
// communication; it releases resources used at the supplier to
// support the event communication. The PushSupplier object
// reference is disposed.
};
interface PullSupplier
{
// = TITLE
// Definition of the PullSupplier.
//
// = DESCRIPTION
// A pull-style supplier supports the PullSupplier interface to
// transmit event data.
any pull () raises (Disconnected);
// The pull operation blocks until the event data is available or
// an exception is raised. It returns the event data to the
// consumer. If the event communication has already been
// disconnected, the Disconnected exception is raised.
any try_pull (out boolean has_event) raises (Disconnected);
// The try_pull operation does not block: if the event data is
// available, it returns the event data and sets the has_event
// parameter to true; if the event is not available, it sets the
// has_event parameter to false and the event data is returned as
// long with an undefined value. If the event communication has
// already been disconnected, the Disconnected exception is
// raised.
void disconnect_pull_supplier ();
// The disconnect_pull_supplier operation terminates the event
// communication; it releases resources used at the supplier to
// support the event communication. The PullSupplier object
// reference is disposed.
};
interface PullConsumer
{
// = TITLE
// Definition of the PullConsumer.
//
// = DESCRIPTION
// A pull-style consumer supports the PullConsumer interface.
void disconnect_pull_consumer ();
// The disconnect_pull_consumer operation terminates the event
// communication; it releases resources used at the consumer to
// support the event communication. The PullConsumer object
// reference is disposed.
};
};
#endif /* TAO_EVENTCOMM_IDL */
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