jdk8-mips64-public/hotspot: src/share/vm/oops/compiledICHolderKlass.hpp@5f24d0319e54

4360113: Evict nmethods when code cache gets full
Summary: Speculatively unload the oldest nmethods when code cache gets full.
Reviewed-by: never, kvn
Contributed-by: eric.caspole@amd.com

     1 /*

     2  * Copyright 1998-2006 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 CMSIsAliveClosure;

    27 // a compiledICHolderKlass is the klass of a compiledICHolderOop

    29 class compiledICHolderKlass : public Klass {

    30   friend class VMStructs;

    31  private:

    32   juint    _alloc_size;        // allocation profiling support

    33  public:

    34   // Testing

    35   bool oop_is_compiledICHolder() const { return true; }

    37   // Allocation

    38   DEFINE_ALLOCATE_PERMANENT(compiledICHolderKlass);

    39   compiledICHolderOop allocate(TRAPS);

    40   static klassOop create_klass(TRAPS);

    42   // Sizing

    43   int oop_size(oop obj) const;

    44   int klass_oop_size() const     { return object_size(); }

    46   // Casting from klassOop

    47   static compiledICHolderKlass* cast(klassOop k) {

    48     assert(k->klass_part()->oop_is_compiledICHolder(), "cast to compiledICHolderKlass");

    49     return (compiledICHolderKlass*) k->klass_part();

    50   }

    52   // Sizing

    53   static int header_size()       { return oopDesc::header_size() + sizeof(compiledICHolderKlass)/HeapWordSize; }

    54   int object_size() const        { return align_object_size(header_size()); }

    56   // Garbage collection

    57   void oop_follow_contents(oop obj);

    58   int  oop_adjust_pointers(oop obj);

    60   // Parallel Scavenge and Parallel Old

    61   PARALLEL_GC_DECLS

    63   // Allocation profiling support

    64   juint alloc_size() const              { return _alloc_size; }

    65   void set_alloc_size(juint n)          { _alloc_size = n; }

    67   // Iterators

    68   int  oop_oop_iterate(oop obj, OopClosure* blk);

    69   int  oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);

    71  public:

    72   // Printing

    73   void oop_print_value_on(oop obj, outputStream* st);

    74 #ifndef PRODUCT

    75   void oop_print_on      (oop obj, outputStream* st);

    76 #endif //PRODUCT

    78   // Verification

    79   const char* internal_name() const;

    80   void oop_verify_on(oop obj, outputStream* st);

    82 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/oops/compiledICHolderKlass.hpp@5f24d0319e54

src/share/vm/oops/compiledICHolderKlass.hpp