From 485cd738f404db14f4dc1066f98596e56879e26d Mon Sep 17 00:00:00 2001
From: Peter Wu <peter@lekensteyn.nl>
Date: Thu, 8 May 2014 13:09:19 +0200
Subject: CompressableDataWriter: fix corruption for cfile

---
 src/io/CompressableDataWriter.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/io/CompressableDataWriter.java b/src/io/CompressableDataWriter.java
index 32531d1..d06c6cd 100644
--- a/src/io/CompressableDataWriter.java
+++ b/src/io/CompressableDataWriter.java
@@ -66,6 +66,10 @@ public class CompressableDataWriter extends DataWriter {
 
         @Override
         public void open() throws IOException {
+            if (os != null) {
+                // already open, don't bother.
+                return;
+            }
             // throws FileNotFoundException if the dirs do not exist...
             os = new FileOutputStream(getFileNameGz(), true);
             try {
-- 
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