Fixed a bug with the resource transfer

[tinyos-2.x.git] / tos / lib / mac / tkn154 / dummies / NoDeviceCfpP.nc

diff --git a/tos/lib/mac/tkn154/dummies/NoDeviceCfpP.nc b/tos/lib/mac/tkn154/dummies/NoDeviceCfpP.nc
index 0d672ce6bc0ac8c5b63f6e847811c70073e41297..0cda4b605558976d5cba939732fe8857f33fd976 100644 (file)
--- a/tos/lib/mac/tkn154/dummies/NoDeviceCfpP.nc
+++ b/tos/lib/mac/tkn154/dummies/NoDeviceCfpP.nc
@@ -51,7 +51,6 @@ module NoDeviceCfpP
     interface FrameTx as CfpTx;
     interface Purge;
   } uses {
-    interface Resource as Token;
     interface ResourceTransferred as TokenTransferred;
     interface ResourceRequested as TokenRequested;
     interface ResourceTransfer as TokenToBeaconSync;
@@ -92,14 +91,12 @@ implementation
 
   async event void TokenTransferred.transferred()
   { 
-    // the CFP has started, this component now owns the token. 
-    // because GTS is not implemented we release the token
-    // (or pass it back to BeaconSynchronizeP if 
-    // we are not transmitting beacons)
-    if (call IsSendingBeacons.getNow())
-      call Token.release();  
-    else
-      call TokenToBeaconSync.transfer();
+    // the CFP has started, this component now owns the token -  
+    // because GTS is not implemented we pass it back to the
+    // BeaconTransmitP component
+    // Note: this component must not use the Resource
+    // interface to release the token!
+    call TokenToBeaconSync.transfer();
   }
 
   async event void CfpEndAlarm.fired() {}
@@ -117,10 +114,10 @@ implementation
 
   async event void TokenRequested.requested()
   {
-    // someone requested access to the radio, you might
-    // consider releasing it...
+    // someone (e.g. SCAN component) requested access to the radio, we 
+    // should pass the token back to BeaconSynchronizeP, which can release it
+    // call TokenToBeaconSync.transfer();
   }
 
   async event void TokenRequested.immediateRequested(){ }
-  event void Token.granted(){ }
 }