Added a comment describing how eventChannels is kept thread safe.
Change-Id: Iabb83b2babbc03bb1fa4e6ca11443f8b93db65a3
NOTE: This commit is a followup on change 394.
diff --git a/src/main/java/net/onrc/onos/datagrid/HazelcastDatagrid.java b/src/main/java/net/onrc/onos/datagrid/HazelcastDatagrid.java
index 39d6c49..9bd838b 100755
--- a/src/main/java/net/onrc/onos/datagrid/HazelcastDatagrid.java
+++ b/src/main/java/net/onrc/onos/datagrid/HazelcastDatagrid.java
@@ -59,6 +59,11 @@
private final KryoFactory kryoFactory = new KryoFactory();
+ //
+ // NOTE: eventChannels is kept thread safe by using explicit "synchronized"
+ // blocks below. Those are needed to protect the integrity of each entry
+ // instance, and avoid preemption during channel creation/startup.
+ //
private final Map<String, IEventChannel<?, ?>> eventChannels = new HashMap<>();
// State related to the packet out map