From 7b2b93e6e62d7305888d6db7cf3bb8766a43717d Mon Sep 17 00:00:00 2001
From: nifi <nifi>
Date: Fri, 18 Dec 2009 14:49:42 +0000
Subject: [PATCH] clear transmission flag if send failed

---
 core/net/rime/runicast.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/core/net/rime/runicast.c b/core/net/rime/runicast.c
index 173a36765..34f1fa016 100644
--- a/core/net/rime/runicast.c
+++ b/core/net/rime/runicast.c
@@ -34,7 +34,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: runicast.c,v 1.7 2009/11/08 19:40:18 adamdunkels Exp $
+ * $Id: runicast.c,v 1.8 2009/12/18 14:49:42 nifi Exp $
  */
 
 /**
@@ -213,7 +213,8 @@ int
 runicast_send(struct runicast_conn *c, const rimeaddr_t *receiver,
 	      uint8_t max_retransmissions)
 {
-  if (runicast_is_transmitting(c)) {
+  int ret;
+  if(runicast_is_transmitting(c)) {
     PRINTF("%d.%d: runicast: already transmitting\n",
         rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1]);
     return 0;
@@ -228,7 +229,11 @@ runicast_send(struct runicast_conn *c, const rimeaddr_t *receiver,
   PRINTF("%d.%d: runicast: sending packet %d\n",
 	 rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1],
 	 c->sndnxt);
-  return stunicast_send_stubborn(&c->c, receiver, REXMIT_TIME);
+  ret = stunicast_send_stubborn(&c->c, receiver, REXMIT_TIME);
+  if(!ret) {
+    c->is_tx = 0;
+  }
+  return ret;
 }
 /*---------------------------------------------------------------------------*/
 /** @} */