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src/share/vm/memory/generationSpec.hpp@f258c5828eb8 (annotated)

src/share/vm/memory/generationSpec.hpp

Mon, 29 Apr 2013 16:13:57 -0400

author

hseigel

date

Mon, 29 Apr 2013 16:13:57 -0400

changeset 4987

f258c5828eb8

parent 4037

da91efe96a93

child 6876

710a3c8b516e

permissions

-rw-r--r--

8011773: Some tests on Interned String crashed JVM with OOM
Summary: Instead of terminating the VM, throw OutOfMemoryError exceptions.
Reviewed-by: coleenp, dholmes

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_MEMORY_GENERATIONSPEC_HPP
stefank@2314	26	#define SHARE_VM_MEMORY_GENERATIONSPEC_HPP
stefank@2314	27
stefank@2314	28	#include "memory/generation.hpp"
stefank@2314	29
duke@435	30	// The specification of a generation. This class also encapsulates
duke@435	31	// some generation-specific behavior. This is done here rather than as a
duke@435	32	// virtual function of Generation because these methods are needed in
duke@435	33	// initialization of the Generations.
zgu@3900	34	class GenerationSpec : public CHeapObj<mtGC> {
duke@435	35	friend class VMStructs;
duke@435	36	private:
duke@435	37	Generation::Name _name;
duke@435	38	size_t _init_size;
duke@435	39	size_t _max_size;
duke@435	40
duke@435	41	public:
duke@435	42	GenerationSpec(Generation::Name name, size_t init_size, size_t max_size) {
duke@435	43	_name = name;
duke@435	44	_init_size = init_size;
duke@435	45	_max_size = max_size;
duke@435	46	}
duke@435	47
duke@435	48	Generation* init(ReservedSpace rs, int level, GenRemSet* remset);
duke@435	49
duke@435	50	// Accessors
duke@435	51	Generation::Name name() const { return _name; }
duke@435	52	size_t init_size() const { return _init_size; }
duke@435	53	void set_init_size(size_t size) { _init_size = size; }
duke@435	54	size_t max_size() const { return _max_size; }
duke@435	55	void set_max_size(size_t size) { _max_size = size; }
duke@435	56
duke@435	57	// Alignment
duke@435	58	void align(size_t alignment) {
duke@435	59	set_init_size(align_size_up(init_size(), alignment));
duke@435	60	set_max_size(align_size_up(max_size(), alignment));
duke@435	61	}
duke@435	62
duke@435	63	// Return the number of regions contained in the generation which
duke@435	64	// might need to be independently covered by a remembered set.
duke@435	65	virtual int n_covered_regions() const { return 1; }
duke@435	66	};
duke@435	67
duke@435	68	typedef GenerationSpec* GenerationSpecPtr;
duke@435	69
stefank@2314	70	#endif // SHARE_VM_MEMORY_GENERATIONSPEC_HPP