/** * \addtogroup rimeuc * @{ */ /* * 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. * */ /** * \file * Single-hop unicast * \author * Adam Dunkels */ #include "net/rime/rime.h" #include "net/rime/unicast.h" #include static const struct packetbuf_attrlist attributes[] = { UNICAST_ATTRIBUTES PACKETBUF_ATTR_LAST }; #define DEBUG 0 #if DEBUG #include #define PRINTF(...) printf(__VA_ARGS__) #else #define PRINTF(...) #endif /*---------------------------------------------------------------------------*/ static void recv_from_broadcast(struct broadcast_conn *broadcast, const linkaddr_t *from) { struct unicast_conn *c = (struct unicast_conn *)broadcast; PRINTF("%d.%d: uc: recv_from_broadcast, receiver %d.%d\n", linkaddr_node_addr.u8[0], linkaddr_node_addr.u8[1], packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[0], packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[1]); if(linkaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &linkaddr_node_addr)) { if(c->u->recv) { c->u->recv(c, from); } } } /*---------------------------------------------------------------------------*/ static void sent_by_broadcast(struct broadcast_conn *broadcast, int status, int num_tx) { struct unicast_conn *c = (struct unicast_conn *)broadcast; PRINTF("%d.%d: uc: sent_by_broadcast, receiver %d.%d\n", linkaddr_node_addr.u8[0], linkaddr_node_addr.u8[1], packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[0], packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[1]); if(c->u->sent) { c->u->sent(c, status, num_tx); } } /*---------------------------------------------------------------------------*/ static const struct broadcast_callbacks uc = {recv_from_broadcast, sent_by_broadcast}; /*---------------------------------------------------------------------------*/ void unicast_open(struct unicast_conn *c, uint16_t channel, const struct unicast_callbacks *u) { broadcast_open(&c->c, channel, &uc); c->u = u; channel_set_attributes(channel, attributes); } /*---------------------------------------------------------------------------*/ void unicast_close(struct unicast_conn *c) { broadcast_close(&c->c); } /*---------------------------------------------------------------------------*/ int unicast_send(struct unicast_conn *c, const linkaddr_t *receiver) { PRINTF("%d.%d: unicast_send to %d.%d\n", linkaddr_node_addr.u8[0],linkaddr_node_addr.u8[1], receiver->u8[0], receiver->u8[1]); packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, receiver); return broadcast_send(&c->c); } /*---------------------------------------------------------------------------*/ /** @} */