deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Generic abc module

Browse source
This commit is contained in:
adamdunkels 2007-03-13 13:01:48 +00:00
parent 6930910cd3
commit 358259105e
2 changed files with 152 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

103
core/net/rime/abc.c Normal file
View file

@ -0,0 +1,103 @@
/*
* Copyright (c) 2004, Swedish Institute of Computer Science.
* 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.
*
* This file is part of the Contiki operating system.
*
* Author: Adam Dunkels <adam@sics.se>
*
* $Id: abc.c,v 1.1 2007/03/13 13:01:48 adamdunkels Exp $
*/
/**
* \addtogroup rime
* @{
*/
/**
* \file
* Anonymous best-effort local area Broad Cast (abc)
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "net/rime.h"
struct abc_hdr {
u16_t channel;
};
LIST(channels);
/*---------------------------------------------------------------------------*/
void
abc_setup(struct abc_conn *c, u16_t channel,
const struct abc_ulayer *ulayer)
{
struct channel *chan;
c->channel = channel;
c->u = ulayer;
list_add(channels, c);
}
/*---------------------------------------------------------------------------*/
int
abc_send(struct abc_conn *c)
{
if(rimebuf_hdrextend(sizeof(struct abc_hdr))) {
struct abc_hdr *hdr = rimebuf_hdrptr();
hdr->channel = c->channel;
rimebuf_copy_reference();
abc_arch_send(rimebuf_hdrptr(), rimebuf_totlen());
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
void
abc_input_packet(void)
{
struct abc_hdr *hdr;
struct abc_conn *c;
hdr = rimebuf_dataptr();
if(rimebuf_hdrreduce(sizeof(struct abc_hdr))) {
for(c = list_head(channels); c != NULL; c = c->next) {
if(c->channel == hdr->channel) {
c->u->recv(c);
}
}
}
}
/*---------------------------------------------------------------------------*/
/** @} */