From: gnawali <gnawali>
Date: Mon, 9 Apr 2007 15:34:34 +0000 (+0000)
Subject: allow etx for a bad parent to grow if no pkts were received since the last update
X-Git-Tag: tinyos/2.0.1~85
X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=commitdiff_plain;h=534d2d7ae42380d6721ec14327b7f1108f10ae9b;p=tinyos-2.x.git

allow etx for a bad parent to grow if no pkts were received since the last update
---

diff --git a/tos/lib/net/le/LinkEstimatorP.nc b/tos/lib/net/le/LinkEstimatorP.nc
index 58ab66c6..ebfa4430 100644
--- a/tos/lib/net/le/LinkEstimatorP.nc
+++ b/tos/lib/net/le/LinkEstimatorP.nc
@@ -246,14 +246,15 @@ implementation {
 
     if (ne->data_success == 0) {
       // if there were no successful packet transmission in the
-      // last window, assign a large EETX estimate
-      estETX = LARGE_EETX_VALUE;
+      // last window, our current estimate is the number of failed
+      // transmissions
+      estETX = (ne->data_total - 1)* 10;
     } else {
       estETX = (10 * ne->data_total) / ne->data_success - 10;
+      ne->data_success = 0;
+      ne->data_total = 0;
     }
     updateEETX(ne, estETX);
-    ne->data_success = 0;
-    ne->data_total = 0;
   }