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

/*
 * Copyright (c) 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

class VM_ParallelGCFailedAllocation: public VM_GC_Operation {
 private:
  size_t    _size;
  bool      _is_tlab;
  HeapWord* _result;

 public:
  VM_ParallelGCFailedAllocation(size_t size, bool is_tlab,
                                unsigned int gc_count);

  virtual VMOp_Type type() const {
    return VMOp_ParallelGCFailedAllocation;
  }
  virtual void doit();

  HeapWord* result() const       { return _result; }
};

class VM_ParallelGCFailedPermanentAllocation: public VM_GC_Operation {
private:
  size_t    _size;
  HeapWord* _result;

 public:
  VM_ParallelGCFailedPermanentAllocation(size_t size,
                                         unsigned int gc_count,
                                         unsigned int full_gc_count);
  virtual VMOp_Type type() const {
    return VMOp_ParallelGCFailedPermanentAllocation;
  }
  virtual void doit();
  HeapWord* result() const       { return _result; }
};

class VM_ParallelGCSystemGC: public VM_GC_Operation {
 public:
  VM_ParallelGCSystemGC(unsigned int gc_count, unsigned int full_gc_count,
                        GCCause::Cause gc_cause);
  virtual VMOp_Type type() const { return VMOp_ParallelGCSystemGC; }
  virtual void doit();
};