Rewrote the collect module so that it uses the announcement module rather than the neighbor-discovery module. This makes it possible to implement other annoumcement back-ends than the traditional broadcast-based neighbor discovery

This commit is contained in:
adamdunkels 2009-02-09 20:58:25 +00:00
parent 37e15ab537
commit 3670ef2f44
2 changed files with 49 additions and 34 deletions

View file

@ -36,7 +36,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: collect.c,v 1.15 2008/11/17 22:52:10 oliverschmidt Exp $
* $Id: collect.c,v 1.16 2009/02/09 20:58:25 adamdunkels Exp $
*/
/**
@ -68,7 +68,7 @@ static const struct rimebuf_attrlist attributes[] =
RIMEBUF_ATTR_LAST
};
#define NUM_RECENT_PACKETS 2
#define NUM_RECENT_PACKETS 4
struct recent_packet {
rimeaddr_t originator;
@ -115,18 +115,13 @@ update_rtmetric(struct collect_conn *tc)
}
tc->rtmetric = RTMETRIC_MAX;
} else {
/* We set our rtmetric to the rtmetric of our best neighbor plus
the expected transmissions to reach that neighbor. */
if(n->rtmetric + neighbor_etx(n) != tc->rtmetric) {
uint16_t new_rtmetric = n->rtmetric + neighbor_etx(n);
if(tc->rtmetric == RTMETRIC_MAX) {
neighbor_discovery_start(&tc->neighbor_discovery_conn, new_rtmetric);
} else {
neighbor_discovery_set_val(&tc->neighbor_discovery_conn, new_rtmetric);
}
tc->rtmetric = new_rtmetric;
tc->rtmetric = n->rtmetric + neighbor_etx(n);
/* neighbor_discovery_start(&tc->neighbor_discovery_conn, tc->rtmetric);*/
announcement_set_value(&tc->announcement, tc->rtmetric);
PRINTF("%d.%d: new rtmetric %d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
tc->rtmetric);
@ -164,11 +159,6 @@ node_packet_received(struct runicast_conn *c, rimeaddr_t *from, uint8_t seqno)
if(recent_packets[i].seqno == rimebuf_attr(RIMEBUF_ATTR_EPACKET_ID)&&
rimeaddr_cmp(&recent_packets[i].originator,
rimebuf_addr(RIMEBUF_ADDR_ESENDER))) {
PRINTF("%d.%d: collect: dropping duplicate packet %d from %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
rimebuf_attr(RIMEBUF_ATTR_EPACKET_ID),
rimebuf_addr(RIMEBUF_ADDR_ESENDER)->u8[0],
rimebuf_addr(RIMEBUF_ADDR_ESENDER)->u8[1]);
/* Drop the packet. */
return;
}
@ -231,8 +221,7 @@ node_packet_received(struct runicast_conn *c, rimeaddr_t *from, uint8_t seqno)
}
/*---------------------------------------------------------------------------*/
static void
node_packet_sent(struct runicast_conn *c, rimeaddr_t *to,
uint8_t retransmissions)
node_packet_sent(struct runicast_conn *c, rimeaddr_t *to, uint8_t retransmissions)
{
struct collect_conn *tc = (struct collect_conn *)
((char *)c - offsetof(struct collect_conn, runicast_conn));
@ -243,8 +232,7 @@ node_packet_sent(struct runicast_conn *c, rimeaddr_t *to,
}
/*---------------------------------------------------------------------------*/
static void
node_packet_timedout(struct runicast_conn *c, rimeaddr_t *to,
uint8_t retransmissions)
node_packet_timedout(struct runicast_conn *c, rimeaddr_t *to, uint8_t retransmissions)
{
struct collect_conn *tc = (struct collect_conn *)
((char *)c - offsetof(struct collect_conn, runicast_conn));
@ -254,7 +242,7 @@ node_packet_timedout(struct runicast_conn *c, rimeaddr_t *to,
update_rtmetric(tc);
}
/*---------------------------------------------------------------------------*/
static void
/*static void
adv_received(struct neighbor_discovery_conn *c, rimeaddr_t *from, uint16_t rtmetric)
{
struct collect_conn *tc = (struct collect_conn *)
@ -273,35 +261,61 @@ adv_received(struct neighbor_discovery_conn *c, rimeaddr_t *from, uint16_t rtmet
1, rtmetric);
}
update_rtmetric(tc);
}*/
static void
received_announcement(struct announcement *a, rimeaddr_t *from,
uint16_t id, uint16_t value)
{
struct collect_conn *tc = (struct collect_conn *)
((char *)a - offsetof(struct collect_conn, announcement));
struct neighbor *n;
n = neighbor_find(from);
if(n == NULL) {
neighbor_add(from, value, 1);
} else {
neighbor_update(n, value);
PRINTF("%d.%d: updating neighbor %d.%d, etx %d, hops %d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
n->addr.u8[0], n->addr.u8[1],
1, value);
}
update_rtmetric(tc);
}
/*---------------------------------------------------------------------------*/
static const struct runicast_callbacks runicast_callbacks = {node_packet_received,
node_packet_sent,
node_packet_timedout};
static const struct neighbor_discovery_callbacks neighbor_discovery_callbacks =
{ adv_received, NULL};
/*static const struct neighbor_discovery_callbacks neighbor_discovery_callbacks =
{ adv_received, NULL};*/
/*---------------------------------------------------------------------------*/
void
collect_open(struct collect_conn *tc, uint16_t channels,
const struct collect_callbacks *cb)
{
neighbor_discovery_open(&tc->neighbor_discovery_conn, channels,
/* neighbor_discovery_open(&tc->neighbor_discovery_conn, channels,
CLOCK_SECOND * 2,
CLOCK_SECOND * 10,
CLOCK_SECOND * 60,
&neighbor_discovery_callbacks);
&neighbor_discovery_callbacks);*/
runicast_open(&tc->runicast_conn, channels + 1, &runicast_callbacks);
channel_set_attributes(channels + 1, attributes);
tc->rtmetric = RTMETRIC_MAX;
tc->cb = cb;
neighbor_discovery_set_val(&tc->neighbor_discovery_conn, tc->rtmetric);
/* neighbor_discovery_start(&tc->neighbor_discovery_conn, tc->rtmetric);*/
announcement_register(&tc->announcement, channels, tc->rtmetric,
received_announcement);
announcement_listen(2);
}
/*---------------------------------------------------------------------------*/
void
collect_close(struct collect_conn *tc)
{
neighbor_discovery_close(&tc->neighbor_discovery_conn);
/* neighbor_discovery_close(&tc->neighbor_discovery_conn);*/
announcement_remove(&tc->announcement);
runicast_close(&tc->runicast_conn);
}
/*---------------------------------------------------------------------------*/
@ -310,10 +324,12 @@ collect_set_sink(struct collect_conn *tc, int should_be_sink)
{
if(should_be_sink) {
tc->rtmetric = SINK;
neighbor_discovery_start(&tc->neighbor_discovery_conn, tc->rtmetric);
/* neighbor_discovery_start(&tc->neighbor_discovery_conn, tc->rtmetric);*/
announcement_set_value(&tc->announcement, tc->rtmetric);
} else {
tc->rtmetric = RTMETRIC_MAX;
}
announcement_set_value(&tc->announcement, tc->rtmetric);
update_rtmetric(tc);
}
/*---------------------------------------------------------------------------*/

View file

@ -47,7 +47,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: collect.h,v 1.8 2008/07/03 21:52:25 adamdunkels Exp $
* $Id: collect.h,v 1.9 2009/02/09 20:58:25 adamdunkels Exp $
*/
/**
@ -60,9 +60,8 @@
#ifndef __COLLECT_H__
#define __COLLECT_H__
#include "net/rime/ipolite.h"
#include "net/rime/announcement.h"
#include "net/rime/runicast.h"
#include "net/rime/neighbor-discovery.h"
#define COLLECT_ATTRIBUTES { RIMEBUF_ADDR_ESENDER, RIMEBUF_ADDRSIZE }, \
{ RIMEBUF_ATTR_EPACKET_ID, RIMEBUF_ATTR_BIT * 2 }, \
@ -77,8 +76,8 @@ struct collect_callbacks {
};
struct collect_conn {
struct neighbor_discovery_conn neighbor_discovery_conn;
struct runicast_conn runicast_conn;
struct announcement announcement;
const struct collect_callbacks *cb;
struct ctimer t;
uint16_t rtmetric;