Changed name of suc module to stunicast

core/net/rime/stunicast.c

@@ -0,0 +1,160 @@
+/**
+ * \addtogroup rimestunicast
+ * @{
+ */
+
+/*
+ * 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: stunicast.c,v 1.1 2008/07/03 21:35:46 adamdunkels Exp $
+ */
+
+/**
+ * \file
+ *         Stubborn unicast
+ * \author
+ *         Adam Dunkels <adam@sics.se>
+ */
+
+#include "net/rime/stunicast.h"
+#include "net/rime.h"
+#include <string.h>
+
+#define DEBUG 0
+#if DEBUG
+#include <stdio.h>
+#define PRINTF(...) printf(__VA_ARGS__)
+#else
+#define PRINTF(...)
+#endif
+
+/*---------------------------------------------------------------------------*/
+static void
+recv_from_uc(struct unicast_conn *uc, rimeaddr_t *from)
+{
+  register struct stunicast_conn *c = (struct stunicast_conn *)uc;
+  PRINTF("%d.%d: stunicast: recv_from_uc from %d.%d\n",
+	 rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1],
+	from->u8[0], from->u8[1]);
+  if(c->u->recv != NULL) {
+    c->u->recv(c, from);
+  }
+}
+/*---------------------------------------------------------------------------*/
+static const struct unicast_callbacks stunicast = {recv_from_uc};
+/*---------------------------------------------------------------------------*/
+void
+stunicast_open(struct stunicast_conn *c, uint16_t channel,
+	  const struct stunicast_callbacks *u)
+{
+  unicast_open(&c->c, channel, &stunicast);
+  c->u = u;
+}
+/*---------------------------------------------------------------------------*/
+void
+stunicast_close(struct stunicast_conn *c)
+{
+  unicast_close(&c->c);
+  ctimer_stop(&c->t);
+  if(c->buf != NULL) {
+    queuebuf_free(c->buf);
+  }
+}
+/*---------------------------------------------------------------------------*/
+rimeaddr_t *
+stunicast_receiver(struct stunicast_conn *c)
+{
+  return &c->receiver;
+}
+/*---------------------------------------------------------------------------*/
+static void
+send(void *ptr)
+{
+  struct stunicast_conn *c = ptr;
+
+  PRINTF("%d.%d: stunicast: resend to %d.%d\n",
+	 rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1],
+	 c->receiver.u8[0], c->receiver.u8[1]);
+  queuebuf_to_rimebuf(c->buf);
+  unicast_send(&c->c, &c->receiver);
+  stunicast_set_timer(c, CLOCK_SECOND);
+  if(c->u->sent != NULL) {
+    c->u->sent(c);
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+stunicast_set_timer(struct stunicast_conn *c, clock_time_t t)
+{
+  ctimer_set(&c->t, t, send, c);
+}
+/*---------------------------------------------------------------------------*/
+int
+stunicast_send_stubborn(struct stunicast_conn *c, rimeaddr_t *receiver,
+		  clock_time_t rxmittime)
+{
+  if(c->buf != NULL) {
+    queuebuf_free(c->buf);
+  }
+  c->buf = queuebuf_new_from_rimebuf();
+  if(c->buf == NULL) {
+    return 0;
+  }
+  rimeaddr_copy(&c->receiver, receiver);
+  ctimer_set(&c->t, rxmittime, send, c);
+
+  PRINTF("%d.%d: stunicast_send_stubborn to %d.%d\n",
+	 rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1],
+	 c->receiver.u8[0],c->receiver.u8[1]);
+  unicast_send(&c->c, &c->receiver);
+  if(c->u->sent != NULL) {
+    c->u->sent(c);
+  }
+  
+  return 1;
+  
+}
+/*---------------------------------------------------------------------------*/
+int
+stunicast_send(struct stunicast_conn *c, rimeaddr_t *receiver)
+{
+  PRINTF("%d.%d: stunicast_send to %d.%d\n",
+	 rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
+	 receiver->u8[0], receiver->u8[1]);
+  return unicast_send(&c->c, receiver);
+}
+/*---------------------------------------------------------------------------*/
+void
+stunicast_cancel(struct stunicast_conn *c)
+{
+  ctimer_stop(&c->t);
+}
+/*---------------------------------------------------------------------------*/
+/** @} */