--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentZFThread.hpp Fri Feb 04 13:17:30 2011 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,91 +0,0 @@
-/*
- * Copyright (c) 2001, 2010, 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.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTZFTHREAD_HPP
-#define SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTZFTHREAD_HPP
-
-#include "gc_implementation/shared/concurrentGCThread.hpp"
-
-// The Concurrent ZF Thread. Performs concurrent zero-filling.
-
-class ConcurrentZFThread: public ConcurrentGCThread {
- friend class VMStructs;
- friend class ZeroFillRegionClosure;
-
- private:
-
- // Zero fill the heap region.
- void processHeapRegion(HeapRegion* r);
-
- // Stats
- // Allocation (protected by heap lock).
- static int _region_allocs; // Number of regions allocated
- static int _sync_zfs; // Synchronous zero-fills +
- static int _zf_waits; // Wait for conc zero-fill completion.
-
- // Number of regions CFZ thread fills.
- static int _regions_filled;
-
- double _vtime_start; // Initial virtual time.
-
- // These are static because the "print_summary_info" method is, and
- // it currently assumes there is only one ZF thread. We'll change when
- // we need to.
- static double _vtime_accum; // Initial virtual time.
- static double vtime_accum() { return _vtime_accum; }
-
- // Offer yield for GC. Returns true if yield occurred.
- bool offer_yield();
-
- public:
- // Constructor
- ConcurrentZFThread();
-
- // Main loop.
- virtual void run();
-
- // Printing
- void print_on(outputStream* st) const;
- void print() const;
-
- // Waits until "r" has been zero-filled. Requires caller to hold the
- // ZF_mon.
- static void wait_for_ZF_completed(HeapRegion* r);
-
- // Get or clear the current unclean region. Should be done
- // while holding the ZF_needed_mon lock.
-
- // shutdown
- void stop();
-
- // Stats
- static void note_region_alloc() {_region_allocs++; }
- static void note_sync_zfs() { _sync_zfs++; }
- static void note_zf_wait() { _zf_waits++; }
- static void note_region_filled() { _regions_filled++; }
-
- static void print_summary_info();
-};
-
-#endif // SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTZFTHREAD_HPP