1 /*
   2  * Copyright (c) 2001, 2009, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_psYoungGen.cpp.incl"








  27 
  28 PSYoungGen::PSYoungGen(size_t        initial_size,
  29                        size_t        min_size,
  30                        size_t        max_size) :
  31   _init_gen_size(initial_size),
  32   _min_gen_size(min_size),
  33   _max_gen_size(max_size)
  34 {}
  35 
  36 void PSYoungGen::initialize_virtual_space(ReservedSpace rs, size_t alignment) {
  37   assert(_init_gen_size != 0, "Should have a finite size");
  38   _virtual_space = new PSVirtualSpace(rs, alignment);
  39   if (!virtual_space()->expand_by(_init_gen_size)) {
  40     vm_exit_during_initialization("Could not reserve enough space for "
  41                                   "object heap");
  42   }
  43 }
  44 
  45 void PSYoungGen::initialize(ReservedSpace rs, size_t alignment) {
  46   initialize_virtual_space(rs, alignment);

   1 /*
   2  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
  27 #include "gc_implementation/parallelScavenge/psMarkSweepDecorator.hpp"
  28 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
  29 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
  30 #include "gc_implementation/shared/gcUtil.hpp"
  31 #include "gc_implementation/shared/mutableNUMASpace.hpp"
  32 #include "gc_implementation/shared/spaceDecorator.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "runtime/java.hpp"
  35 
  36 PSYoungGen::PSYoungGen(size_t        initial_size,
  37                        size_t        min_size,
  38                        size_t        max_size) :
  39   _init_gen_size(initial_size),
  40   _min_gen_size(min_size),
  41   _max_gen_size(max_size)
  42 {}
  43 
  44 void PSYoungGen::initialize_virtual_space(ReservedSpace rs, size_t alignment) {
  45   assert(_init_gen_size != 0, "Should have a finite size");
  46   _virtual_space = new PSVirtualSpace(rs, alignment);
  47   if (!virtual_space()->expand_by(_init_gen_size)) {
  48     vm_exit_during_initialization("Could not reserve enough space for "
  49                                   "object heap");
  50   }
  51 }
  52 
  53 void PSYoungGen::initialize(ReservedSpace rs, size_t alignment) {
  54   initialize_virtual_space(rs, alignment);