src/share/vm/memory/genMarkSweep.hpp

Mon, 23 Jun 2008 16:49:37 -0700

author
ysr
date
Mon, 23 Jun 2008 16:49:37 -0700
changeset 782
60fb9c4db4e6
parent 777
37f87013dfd8
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6718086: CMS assert: _concurrent_iteration_safe_limit update missed
Summary: Initialize the field correctly in ContiguousSpace's constructor and initialize() methods, using the latter for the survivor spaces upon initial construction or a subsequent resizing of the young generation. Add some missing Space sub-class constructors.
Reviewed-by: apetrusenko

     1 /*
     2  * Copyright 2001-2004 Sun Microsystems, Inc.  All Rights Reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 class GenMarkSweep : public MarkSweep {
    26   friend class VM_MarkSweep;
    27   friend class G1MarkSweep;
    28  public:
    29   static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
    30                                   bool clear_all_softrefs);
    32  private:
    34   // Mark live objects
    35   static void mark_sweep_phase1(int level, bool clear_all_softrefs);
    36   // Calculate new addresses
    37   static void mark_sweep_phase2();
    38   // Update pointers
    39   static void mark_sweep_phase3(int level);
    40   // Move objects to new positions
    41   static void mark_sweep_phase4();
    43   // Temporary data structures for traversal and storing/restoring marks
    44   static void allocate_stacks();
    45   static void deallocate_stacks();
    46 };

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