incubator-nuttx/net/icmpv6/icmpv6_poll.c

81 lines
2.7 KiB
C

/****************************************************************************
* net/icmpv6/icmpv6_poll.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#if defined(CONFIG_NET_ICMPv6_SOCKET) || defined(CONFIG_NET_ICMPv6_NEIGHBOR)
#include <debug.h>
#include <nuttx/net/netconfig.h>
#include <nuttx/net/netdev.h>
#include <nuttx/net/icmpv6.h>
#include "devif/devif.h"
#include "icmpv6/icmpv6.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: icmpv6_poll
*
* Description:
* Poll a UDP "connection" structure for availability of TX data
*
* Input Parameters:
* dev - The device driver structure to use in the send operation
* conn - A pointer to the ICMPv6 connection structure
*
* Returned Value:
* None
*
* Assumptions:
* The network is locked.
* dev is not NULL.
* conn may be NULL.
* The connection (conn), if not NULL, is bound to
* the polling device (dev).
*
****************************************************************************/
void icmpv6_poll(FAR struct net_driver_s *dev,
FAR struct icmpv6_conn_s *conn)
{
DEBUGASSERT(dev != NULL && (conn == NULL || dev == conn->dev));
/* Setup for the application callback */
dev->d_appdata = IPBUF(IPICMPv6_HDRLEN);
dev->d_len = 0;
dev->d_sndlen = 0;
/* Perform the application callback */
devif_conn_event(dev, ICMPv6_POLL,
conn ? conn->sconn.list : dev->d_conncb);
}
#endif /* CONFIG_NET_ICMPv6_SOCKET || CONFIG_NET_ICMPv6_NEIGHBOR */