author | jrose |
Wed, 02 Jun 2010 22:45:42 -0700 | |
changeset 5702 | 201c5cde25bb |
parent 5547 | f4b087cbb361 |
child 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2001, 2005, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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class PSAdaptiveSizePolicy; |
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class PSYoungGen; |
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class PSOldGen; |
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class PSMarkSweep : public MarkSweep { |
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private: |
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static elapsedTimer _accumulated_time; |
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static unsigned int _total_invocations; |
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static jlong _time_of_last_gc; // ms |
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static CollectorCounters* _counters; |
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// Closure accessors |
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static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; } |
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static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; } |
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static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; } |
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static OopClosure* adjust_root_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_root_pointer_closure; } |
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static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; } |
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debug_only(public:) // Used for PSParallelCompact debugging |
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// Mark live objects |
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static void mark_sweep_phase1(bool clear_all_softrefs); |
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// Calculate new addresses |
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static void mark_sweep_phase2(); |
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debug_only(private:) // End used for PSParallelCompact debugging |
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// Update pointers |
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static void mark_sweep_phase3(); |
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// Move objects to new positions |
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static void mark_sweep_phase4(); |
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debug_only(public:) // Used for PSParallelCompact debugging |
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// Temporary data structures for traversal and storing/restoring marks |
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static void allocate_stacks(); |
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static void deallocate_stacks(); |
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static void set_ref_processor(ReferenceProcessor* rp) { // delete this method |
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_ref_processor = rp; |
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} |
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debug_only(private:) // End used for PSParallelCompact debugging |
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// If objects are left in eden after a collection, try to move the boundary |
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// and absorb them into the old gen. Returns true if eden was emptied. |
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static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy, |
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PSYoungGen* young_gen, |
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PSOldGen* old_gen); |
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// Reset time since last full gc |
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static void reset_millis_since_last_gc(); |
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public: |
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static void invoke(bool clear_all_softrefs); |
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static void invoke_no_policy(bool clear_all_softrefs); |
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static void initialize(); |
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// Public accessors |
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static elapsedTimer* accumulated_time() { return &_accumulated_time; } |
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static unsigned int total_invocations() { return _total_invocations; } |
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static CollectorCounters* counters() { return _counters; } |
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// Time since last full gc (in milliseconds) |
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static jlong millis_since_last_gc(); |
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}; |