From: idgay <idgay>
Date: Thu, 8 Feb 2007 17:49:22 +0000 (+0000)
Subject: fix empty queue case
X-Git-Tag: tinyos/2.0.1~184
X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=commitdiff_plain;h=de2911076c8d075827bc8401fd0196a086953137;p=tinyos-2.x.git

fix empty queue case
---

diff --git a/tos/system/RoundRobinResourceQueueC.nc b/tos/system/RoundRobinResourceQueueC.nc
index b6d5565b..d2805a64 100644
--- a/tos/system/RoundRobinResourceQueueC.nc
+++ b/tos/system/RoundRobinResourceQueueC.nc
@@ -36,9 +36,12 @@ generic module RoundRobinResourceQueueC(uint8_t size) {
   }
 }
 implementation {
-  enum {NO_ENTRY = 0xFF};
+  enum {
+    NO_ENTRY = 0xFF,
+    SIZE = size ? (size - 1) / 8 + 1 : 0
+  };
 
-  uint8_t resQ[(size-1)/8 + 1];
+  uint8_t resQ[SIZE];
   uint8_t last = 0;
 
   void clearEntry(uint8_t id) {