hotspot/src/share/vm/gc/g1/satbQueue.hpp
changeset 33881 c474c2aa53c4
parent 33880 3d43ae0bef27
parent 33877 28d56d7e4211
child 33892 b948a0f3b9a6
--- a/hotspot/src/share/vm/gc/g1/satbQueue.hpp	Fri Nov 20 15:41:49 2015 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,123 +0,0 @@
-/*
- * Copyright (c) 2001, 2015, 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_G1_SATBQUEUE_HPP
-#define SHARE_VM_GC_G1_SATBQUEUE_HPP
-
-#include "gc/g1/ptrQueue.hpp"
-#include "memory/allocation.hpp"
-
-class JavaThread;
-class SATBMarkQueueSet;
-
-// Base class for processing the contents of a SATB buffer.
-class SATBBufferClosure : public StackObj {
-protected:
-  ~SATBBufferClosure() { }
-
-public:
-  // Process the SATB entries in the designated buffer range.
-  virtual void do_buffer(void** buffer, size_t size) = 0;
-};
-
-// A ptrQueue whose elements are "oops", pointers to object heads.
-class ObjPtrQueue: public PtrQueue {
-  friend class SATBMarkQueueSet;
-
-private:
-  // Filter out unwanted entries from the buffer.
-  void filter();
-
-public:
-  ObjPtrQueue(PtrQueueSet* qset, bool perm = false) :
-    // SATB queues are only active during marking cycles. We create
-    // them with their active field set to false. If a thread is
-    // created during a cycle and its SATB queue needs to be activated
-    // before the thread starts running, we'll need to set its active
-    // field to true. This is done in JavaThread::initialize_queues().
-    PtrQueue(qset, perm, false /* active */) { }
-
-  // Process queue entries and free resources.
-  void flush();
-
-  // Apply cl to the active part of the buffer.
-  // Prerequisite: Must be at a safepoint.
-  void apply_closure_and_empty(SATBBufferClosure* cl);
-
-  // Overrides PtrQueue::should_enqueue_buffer(). See the method's
-  // definition for more information.
-  virtual bool should_enqueue_buffer();
-
-#ifndef PRODUCT
-  // Helpful for debugging
-  void print(const char* name);
-  static void print(const char* name, void** buf, size_t index, size_t sz);
-#endif // PRODUCT
-};
-
-class SATBMarkQueueSet: public PtrQueueSet {
-  ObjPtrQueue _shared_satb_queue;
-
-#ifdef ASSERT
-  void dump_active_states(bool expected_active);
-  void verify_active_states(bool expected_active);
-#endif // ASSERT
-
-public:
-  SATBMarkQueueSet();
-
-  void initialize(Monitor* cbl_mon, Mutex* fl_lock,
-                  int process_completed_threshold,
-                  Mutex* lock);
-
-  static void handle_zero_index_for_thread(JavaThread* t);
-
-  // Apply "set_active(active)" to all SATB queues in the set. It should be
-  // called only with the world stopped. The method will assert that the
-  // SATB queues of all threads it visits, as well as the SATB queue
-  // set itself, has an active value same as expected_active.
-  void set_active_all_threads(bool active, bool expected_active);
-
-  // Filter all the currently-active SATB buffers.
-  void filter_thread_buffers();
-
-  // If there exists some completed buffer, pop and process it, and
-  // return true.  Otherwise return false.  Processing a buffer
-  // consists of applying the closure to the buffer range starting
-  // with the first non-NULL entry to the end of the buffer; the
-  // leading entries may be NULL due to filtering.
-  bool apply_closure_to_completed_buffer(SATBBufferClosure* cl);
-
-#ifndef PRODUCT
-  // Helpful for debugging
-  void print_all(const char* msg);
-#endif // PRODUCT
-
-  ObjPtrQueue* shared_satb_queue() { return &_shared_satb_queue; }
-
-  // If a marking is being abandoned, reset any unprocessed log buffers.
-  void abandon_partial_marking();
-};
-
-#endif // SHARE_VM_GC_G1_SATBQUEUE_HPP