/* * Copyright (c) 2006, 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. * * $Id: uc.c,v 1.4 2007/03/19 19:24:37 adamdunkels Exp $ */ /** * \file * A brief description of what this file is. * \author * Adam Dunkels */ #include "net/rime.h" #include "net/rime/uc.h" #include struct uc_hdr { rimeaddr_t receiver; }; /*---------------------------------------------------------------------------*/ static void recv_from_ibc(struct ibc_conn *ibc, rimeaddr_t *from) { struct uc_conn *c = (struct uc_conn *)ibc; struct uc_hdr *hdr = rimebuf_dataptr(); DEBUGF(2, "%d: uc: recv_from_ibc, receiver %d %p hdr %p\n", node_id, hdr->receiver, c, hdr); if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_node_addr)) { rimebuf_hdrreduce(sizeof(struct uc_hdr)); c->u->recv(c, from); } } /*---------------------------------------------------------------------------*/ static const struct ibc_callbacks uc = {recv_from_ibc}; /*---------------------------------------------------------------------------*/ void uc_open(struct uc_conn *c, u16_t channel, const struct uc_callbacks *u) { ibc_open(&c->c, channel, &uc); c->u = u; } /*---------------------------------------------------------------------------*/ int uc_send(struct uc_conn *c, rimeaddr_t *receiver) { DEBUGF(2, "%d: uc_send to %d\n", node_id, receiver_id); if(rimebuf_hdrextend(sizeof(struct uc_hdr))) { struct uc_hdr *hdr = rimebuf_hdrptr(); rimeaddr_copy(&hdr->receiver, receiver); return ibc_send(&c->c); } return 0; } /*---------------------------------------------------------------------------*/