ensure the callback function used in ZKClusterRT.sWatchGroup cannot b…

…e NULL
jaejaejae · Jun 10, 2015 · 56fe4b8 · 56fe4b8
1 parent 6bcaaaa
commit 56fe4b8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/utils/cluster_rt.cc b/src/utils/cluster_rt.cc
@@ -55,6 +55,8 @@ bool ZKClusterRT::Init(){
 
 bool ZKClusterRT::sWatchSGroup(int gid, int sid, rt_callback fn, void *ctx){
 
+  CHECK_NOTNULL(fn);
+
   string path = getSGroupPath(gid);
   struct Stat stat;