mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-21 19:29:18 +00:00
66 lines
2.9 KiB
C
66 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2015, SICS Swedish ICT.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*
|
|
* Authors: Simon Duquennoy <simonduq@sics.se>
|
|
*/
|
|
|
|
#ifndef LINK_STATS_H_
|
|
#define LINK_STATS_H_
|
|
|
|
#include "core/net/linkaddr.h"
|
|
|
|
/* ETX fixed point divisor. 128 is the value used by RPL (RFC 6551 and RFC 6719) */
|
|
#ifdef LINK_STATS_CONF_ETX_DIVISOR
|
|
#define LINK_STATS_ETX_DIVISOR LINK_STATS_CONF_ETX_DIVISOR
|
|
#else /* LINK_STATS_CONF_ETX_DIVISOR */
|
|
#define LINK_STATS_ETX_DIVISOR 128
|
|
#endif /* LINK_STATS_CONF_ETX_DIVISOR */
|
|
|
|
/* All statistics of a given link */
|
|
struct link_stats {
|
|
uint16_t etx; /* ETX using ETX_DIVISOR as fixed point divisor */
|
|
int16_t rssi; /* RSSI (received signal strength) */
|
|
uint8_t freshness; /* Freshness of the statistics */
|
|
clock_time_t last_tx_time; /* Last Tx timestamp */
|
|
};
|
|
|
|
/* Returns the neighbor's link statistics */
|
|
const struct link_stats *link_stats_from_lladdr(const linkaddr_t *lladdr);
|
|
/* Are the statistics fresh? */
|
|
int link_stats_is_fresh(const struct link_stats *stats);
|
|
|
|
/* Initializes link-stats module */
|
|
void link_stats_init(void);
|
|
/* Packet sent callback. Updates statistics for transmissions on a given link */
|
|
void link_stats_packet_sent(const linkaddr_t *lladdr, int status, int numtx);
|
|
/* Packet input callback. Updates statistics for receptions on a given link */
|
|
void link_stats_input_callback(const linkaddr_t *lladdr);
|
|
|
|
#endif /* LINK_STATS_H_ */
|