From 42b5a0d0edda1ceef72889d8ca39e14c999bde01 Mon Sep 17 00:00:00 2001
From: Mike Hearn <hearn@google.com>
Date: Sun, 18 Sep 2011 19:54:03 +0000
Subject: [PATCH] Implement a couple of (weak) hashCode methods to go with
 equals(). Resolves issue 82.

---
 src/com/google/bitcoin/core/PeerAddress.java    | 5 +++++
 src/com/google/bitcoin/core/VersionMessage.java | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/src/com/google/bitcoin/core/PeerAddress.java b/src/com/google/bitcoin/core/PeerAddress.java
index cb71c425..77c79906 100644
--- a/src/com/google/bitcoin/core/PeerAddress.java
+++ b/src/com/google/bitcoin/core/PeerAddress.java
@@ -125,4 +125,9 @@ public class PeerAddress extends Message {
                other.services.equals(services) &&
                other.time == time;
     }
+
+    @Override
+    public int hashCode() {
+        return addr.hashCode() ^ port ^ (int)time ^ services.hashCode();
+    }
 }
diff --git a/src/com/google/bitcoin/core/VersionMessage.java b/src/com/google/bitcoin/core/VersionMessage.java
index 09ee18e3..ede9b389 100644
--- a/src/com/google/bitcoin/core/VersionMessage.java
+++ b/src/com/google/bitcoin/core/VersionMessage.java
@@ -137,4 +137,10 @@ public class VersionMessage extends Message {
                other.myAddr.equals(myAddr) &&
                other.theirAddr.equals(theirAddr);
     }
+
+    @Override
+    public int hashCode() {
+        return (int)bestHeight ^ clientVersion ^ (int)localServices ^ (int)time ^ subVer.hashCode() ^ myAddr.hashCode()
+                ^ theirAddr.hashCode();
+    }
 }