src/share/vm/gc_implementation/parallelScavenge/psPermGen.hpp

changeset 435
a61af66fc99e
child 1907
c18cbe5936b8
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/psPermGen.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,53 @@
     1.4 +/*
     1.5 + * Copyright 2001-2005 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +class AdaptivePaddedAverage;
    1.29 +
    1.30 +class PSPermGen : public PSOldGen {
    1.31 +  friend class VMStructs;
    1.32 + protected:
    1.33 +  AdaptivePaddedAverage* _avg_size;  // Used for sizing
    1.34 +  size_t _last_used;                 // Amount used at last GC, used for sizing
    1.35 +
    1.36 + public:
    1.37 +  // Initialize the generation.
    1.38 +  PSPermGen(ReservedSpace rs, size_t alignment, size_t initial_byte_size,
    1.39 +            size_t minimum_byte_size, size_t maximum_byte_size,
    1.40 +            const char* gen_name, int level);
    1.41 +
    1.42 +  // Permanent Gen special allocation. Uses the OldGen allocation
    1.43 +  // routines, which should not be directly called on this generation.
    1.44 +  HeapWord* allocate_permanent(size_t word_size);
    1.45 +
    1.46 +  // Size calculation.
    1.47 +  void compute_new_size(size_t used_before_collection);
    1.48 +
    1.49 +  // MarkSweep code
    1.50 +  virtual void precompact();
    1.51 +
    1.52 +  // Parallel old
    1.53 +  virtual void move_and_update(ParCompactionManager* cm);
    1.54 +
    1.55 +  virtual const char* name() const { return "PSPermGen"; }
    1.56 +};

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