From eaea211c367d24d7863c5e5d50963f054e929499 Mon Sep 17 00:00:00 2001
From: Eugene Zhuravlev <jeka@intellij.com>
Date: Tue, 19 Jun 2012 17:20:47 +0200
Subject: [PATCH] ensure initialized state is visible to other threads

---
 .../src/com/intellij/util/indexing/FileBasedIndexImpl.java    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java b/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
index cfcc046a8114..1f9d4ec28e88 100644
--- a/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
+++ b/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
@@ -125,7 +125,7 @@ public class FileBasedIndexImpl extends FileBasedIndex {
   @Nullable private ScheduledFuture<?> myFlushingFuture;
   private volatile int myLocalModCount;
   private volatile int myFilesModCount;
-
+  private volatile boolean myInitialized; // need this variable for memory barrier
   @Override
   public void requestReindex(@NotNull final VirtualFile file) {
     myChangedFilesCollector.invalidateIndices(file, true);
@@ -347,7 +347,7 @@ public class FileBasedIndexImpl extends FileBasedIndex {
           lastModCount = myLocalModCount;
         }
       });
-
+      myInitialized = true; // this will ensure that all changes to component's state will be visible to other threads
     }
   }