1 /*
2 * Copyright (c) 2003, 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/adjoiningVirtualSpaces.hpp"
27 #include "memory/allocation.inline.hpp"
28 #include "runtime/java.hpp"
29
30 AdjoiningVirtualSpaces::AdjoiningVirtualSpaces(ReservedSpace rs,
31 size_t min_low_byte_size,
32 size_t min_high_byte_size,
33 size_t alignment) :
34 _reserved_space(rs), _min_low_byte_size(min_low_byte_size),
35 _min_high_byte_size(min_high_byte_size), _low(0), _high(0),
36 _alignment(alignment) {}
37
38 // The maximum byte sizes are for the initial layout of the
39 // virtual spaces and are not the limit on the maximum bytes sizes.
40 void AdjoiningVirtualSpaces::initialize(size_t max_low_byte_size,
41 size_t init_low_byte_size,
42 size_t init_high_byte_size) {
43
44 // The reserved spaces for the two parts of the virtual space.
45 ReservedSpace old_rs = _reserved_space.first_part(max_low_byte_size);
46 ReservedSpace young_rs = _reserved_space.last_part(max_low_byte_size);
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1 /*
2 * Copyright (c) 2003, 2015, 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/parallel/adjoiningVirtualSpaces.hpp"
27 #include "memory/allocation.inline.hpp"
28 #include "runtime/java.hpp"
29
30 AdjoiningVirtualSpaces::AdjoiningVirtualSpaces(ReservedSpace rs,
31 size_t min_low_byte_size,
32 size_t min_high_byte_size,
33 size_t alignment) :
34 _reserved_space(rs), _min_low_byte_size(min_low_byte_size),
35 _min_high_byte_size(min_high_byte_size), _low(0), _high(0),
36 _alignment(alignment) {}
37
38 // The maximum byte sizes are for the initial layout of the
39 // virtual spaces and are not the limit on the maximum bytes sizes.
40 void AdjoiningVirtualSpaces::initialize(size_t max_low_byte_size,
41 size_t init_low_byte_size,
42 size_t init_high_byte_size) {
43
44 // The reserved spaces for the two parts of the virtual space.
45 ReservedSpace old_rs = _reserved_space.first_part(max_low_byte_size);
46 ReservedSpace young_rs = _reserved_space.last_part(max_low_byte_size);
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