incubator-nuttx/mm/iob/iob_free_chain.c

56 lines
1.9 KiB
C

/****************************************************************************
* mm/iob/iob_free_chain.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>
#include <nuttx/arch.h>
#include <nuttx/mm/iob.h>
#include "iob.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: iob_free_chain
*
* Description:
* Free an entire buffer chain, starting at the beginning of the I/O
* buffer chain
*
****************************************************************************/
void iob_free_chain(FAR struct iob_s *iob, enum iob_user_e producerid)
{
FAR struct iob_s *next;
/* Free each IOB in the chain -- one at a time to keep the count straight */
for (; iob; iob = next)
{
next = iob_free(iob, producerid);
}
}