incubator-nuttx/net/utils/net_dsec2timeval.c

62 lines
2.1 KiB
C

/****************************************************************************
* net/utils/net_dsec2timeval.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 <sys/time.h>
#include <nuttx/clock.h>
#include "utils/utils.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: net_dsec2timeval
*
* Description:
* Convert a decisecond timeout value to a struct timeval. Needed by
* getsockopt() to report timeout values.
*
* Input Parameters:
* dsec The decisecond value to convert
* tv The struct timeval to receive the converted value
*
* Returned Value:
* None
*
* Assumptions:
*
****************************************************************************/
void net_dsec2timeval(uint16_t dsec, FAR struct timeval *tv)
{
uint16_t remainder;
tv->tv_sec = dsec / DSEC_PER_SEC;
remainder = dsec - tv->tv_sec * DSEC_PER_SEC;
tv->tv_usec = remainder * USEC_PER_DSEC;
}