* net/utils/net_iob_concat.c
*
* SPDX-License-Identifier: Apache-2.0
*
* 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>
#include <sys/types.h>
#include <nuttx/mm/iob.h>
#ifdef CONFIG_MM_IOB
* Public Functions
****************************************************************************/
* Name: net_iob_concat
*
* Description:
* Concatenate iob_s chain iob2 to iob1, if CONFIG_NET_RECV_PACK is
* endabled, pack all data in the I/O buffer chain.
*
* Returned Value:
* The number of bytes actually buffered is returned. This will be either
* zero or equal to iob->io_pktlen.
*
****************************************************************************/
uint16_t net_iob_concat(FAR struct iob_s **iob1, FAR struct iob_s **iob2)
{
if (*iob1 == NULL)
{
*iob1 = *iob2;
}
else
{
iob_concat(*iob1, *iob2);
}
*iob2 = NULL;
#ifdef CONFIG_NET_RECV_PACK
* consumption.
*/
*iob1 = iob_pack(*iob1);
#endif
return (*iob1)->io_pktlen;
}
#endif