proton-c/include/proton/listener.h

#ifndef PROTON_LISTENER_H
#define PROTON_LISTENER_H 1

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

#include <proton/import_export.h>
#include <proton/types.h>
#include <proton/event.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @file
 *
 * @copybrief listener
 *
 * @addtogroup listener
 * @{
 *
 * @note Thread safety: Listener has the same thread-safety rules as a
 * @ref core object.  Calls to a single listener must be serialized
 * with the exception of pn_listener_close().
 */

/**
 * Create a listener to pass to pn_proactor_listen()
 *
 * You can use pn_listener_attachments() to set application data that can be
 * accessed when accepting connections.
 */
PNP_EXTERN pn_listener_t *pn_listener(void);

/**
 * Free a listener. You don't need to call this unless you create a listener
 * with pn_listen() but never pass it to pn_proactor_listen()
 */
PNP_EXTERN void pn_listener_free(pn_listener_t *l);

/**
 * Bind @p connection to a new transport accepted from @p listener.
 * Errors are returned as @ref PN_TRANSPORT_CLOSED events by pn_proactor_wait().
 *
 */
PNP_EXTERN void pn_listener_accept(pn_listener_t*, pn_connection_t *);

/**
 * Get the error condition for a listener.
 */
PNP_EXTERN pn_condition_t *pn_listener_condition(pn_listener_t *l);

/**
 * @cond INTERNAL
 */

PNP_EXTERN void *pn_listener_get_context(pn_listener_t *listener);

PNP_EXTERN void pn_listener_set_context(pn_listener_t *listener, void *context);

/**
 * @endcond
 */

/**
 * Get the attachments that are associated with a listener object.
 */
PNP_EXTERN pn_record_t *pn_listener_attachments(pn_listener_t *listener);

/**
 * Close the listener.
 * The PN_LISTENER_CLOSE event is generated when the listener has stopped listening.
 *
 * @note Thread safe. Must not be called after the PN_LISTENER_CLOSE event has
 * been handled as the listener may be freed .
 */
PNP_EXTERN void pn_listener_close(pn_listener_t *l);

/**
 * The proactor associated with a listener.
 */
PNP_EXTERN pn_proactor_t *pn_listener_proactor(pn_listener_t *c);

/**
 * Return the listener associated with an event.
 *
 * @return NULL if the event is not associated with a listener.
 */
PNP_EXTERN pn_listener_t *pn_event_listener(pn_event_t *event);

/**
 *@}
 */

#ifdef __cplusplus
}
#endif

#endif /* listener.h */