jdk-sandbox: src/hotspot/share/gc/parallel/psFileBackedVirtualspace.hpp@5b96c12f909d (annotated)

53117 37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	1	/*
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 53117 diff changeset	2	* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
53117 37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	4	*
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	7	* published by the Free Software Foundation.
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	8	*
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	9	* This code is distributed in the hope that it will be useful, but WITHOUT
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	12	* version 2 for more details (a copy is included in the LICENSE file that
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	13	* accompanied this code).
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	14	*
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	15	* You should have received a copy of the GNU General Public License version
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37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	18	*
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	20	* or visit www.oracle.com if you need additional information or have any
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	21	* questions.
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	22	*
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	23	*/
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	24
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 53117 diff changeset	25	#ifndef SHARE_GC_PARALLEL_PSFILEBACKEDVIRTUALSPACE_HPP
9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 53117 diff changeset	26	#define SHARE_GC_PARALLEL_PSFILEBACKEDVIRTUALSPACE_HPP
53117 37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	27
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	28	#include "gc/parallel/psVirtualspace.hpp"
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	29
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	30	class PSFileBackedVirtualSpace : public PSVirtualSpace {
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	31	private:
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	32	const char* _file_path;
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	33	int _fd;
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	34	bool _mapping_succeeded;
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	35	public:
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	36	PSFileBackedVirtualSpace(ReservedSpace rs, size_t alignment, const char* file_path);
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	37
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	38	bool initialize();
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	39	bool expand_by(size_t bytes);
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	40	bool shrink_by(size_t bytes);
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	41	size_t expand_into(PSVirtualSpace* space, size_t bytes);
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	42	void release();
37930c6ba6d7 8211424: Allocation of old generation of java heap on alternate memory devices - Parallel GC sangheki parents: diff changeset	43	};
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 53117 diff changeset	44	#endif // SHARE_GC_PARALLEL_PSFILEBACKEDVIRTUALSPACE_HPP

author	phh
	Sat, 30 Nov 2019 14:33:05 -0800
changeset 59330	5b96c12f909d
parent 54264	41af8d0546bc
permissions	-rw-r--r--