hotspot/src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.hpp
author jcoomes
Wed, 03 Mar 2010 14:48:26 -0800
changeset 5076 8b74a4b60b31
parent 1 489c9b5090e2
child 5547 f4b087cbb361
permissions -rw-r--r--
4396719: Mark Sweep stack overflow on deeply nested Object arrays Summary: Use an explicit stack for object arrays and process them in chunks. Reviewed-by: iveresov, apetrusenko
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/*
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 * Copyright (c) 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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class VM_ParallelGCFailedAllocation: public VM_GC_Operation {
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 private:
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  size_t    _size;
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  bool      _is_tlab;
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  HeapWord* _result;
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 public:
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  VM_ParallelGCFailedAllocation(size_t size, bool is_tlab,
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                                unsigned int gc_count);
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  virtual VMOp_Type type() const {
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    return VMOp_ParallelGCFailedAllocation;
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  }
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  virtual void doit();
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  HeapWord* result() const       { return _result; }
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};
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class VM_ParallelGCFailedPermanentAllocation: public VM_GC_Operation {
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private:
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  size_t    _size;
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  HeapWord* _result;
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  VM_ParallelGCFailedPermanentAllocation(size_t size,
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                                         unsigned int gc_count,
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                                         unsigned int full_gc_count);
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  virtual VMOp_Type type() const {
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    return VMOp_ParallelGCFailedPermanentAllocation;
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  }
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  virtual void doit();
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  HeapWord* result() const       { return _result; }
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};
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class VM_ParallelGCSystemGC: public VM_GC_Operation {
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 public:
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  VM_ParallelGCSystemGC(unsigned int gc_count, unsigned int full_gc_count,
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                        GCCause::Cause gc_cause);
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  virtual VMOp_Type type() const { return VMOp_ParallelGCSystemGC; }
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  virtual void doit();
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};