src/share/vm/runtime/mutexLocker.cpp

rev 5952 : 8029075: String deduplication in G1
Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192
Reviewed-by: brutisso, tschatzl, coleenp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -56,10 +56,12 @@
 Mutex*   AdapterHandlerLibrary_lock   = NULL;
 Mutex*   SignatureHandlerLibrary_lock = NULL;
 Mutex*   VtableStubs_lock             = NULL;
 Mutex*   SymbolTable_lock             = NULL;
 Mutex*   StringTable_lock             = NULL;
+Monitor* StringDedupQueue_lock        = NULL;
+Mutex*   StringDedupTable_lock        = NULL;
 Mutex*   CodeCache_lock               = NULL;
 Mutex*   MethodData_lock              = NULL;
 Mutex*   RetData_lock                 = NULL;
 Monitor* VMOperationQueue_lock        = NULL;
 Monitor* VMOperationRequest_lock      = NULL;

@@ -194,10 +196,13 @@
     def(OldSets_lock               , Mutex  , leaf     ,   true );
     def(RootRegionScan_lock        , Monitor, leaf     ,   true );
     def(MMUTracker_lock            , Mutex  , leaf     ,   true );
     def(HotCardCache_lock          , Mutex  , special  ,   true );
     def(EvacFailureStack_lock      , Mutex  , nonleaf  ,   true );
+
+    def(StringDedupQueue_lock      , Monitor, leaf,        true );
+    def(StringDedupTable_lock      , Mutex  , leaf,        true );
   }
   def(ParGCRareEvent_lock          , Mutex  , leaf     ,   true );
   def(DerivedPointerTableGC_lock   , Mutex,   leaf,        true );
   def(CodeCache_lock               , Mutex  , special,     true );
   def(Interrupt_lock               , Monitor, special,     true ); // used for interrupt processing