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src/share/vm/gc_implementation/shared/cSpaceCounters.hpp@710a3c8b516e (annotated)

src/share/vm/gc_implementation/shared/cSpaceCounters.hpp

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 4037

da91efe96a93

parent 0

f90c822e73f8

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP
aoqi@0	26	#define SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP
aoqi@0	27
aoqi@0	28	#include "gc_implementation/shared/generationCounters.hpp"
aoqi@0	29	#include "memory/space.inline.hpp"
aoqi@0	30	#include "runtime/perfData.hpp"
aoqi@0	31
aoqi@0	32	// A CSpaceCounters is a holder class for performance counters
aoqi@0	33	// that track a space;
aoqi@0	34
aoqi@0	35	class CSpaceCounters: public CHeapObj<mtGC> {
aoqi@0	36	friend class VMStructs;
aoqi@0	37
aoqi@0	38	private:
aoqi@0	39	PerfVariable* _capacity;
aoqi@0	40	PerfVariable* _used;
aoqi@0	41	PerfVariable* _max_capacity;
aoqi@0	42
aoqi@0	43	// Constant PerfData types don't need to retain a reference.
aoqi@0	44	// However, it's a good idea to document them here.
aoqi@0	45	// PerfConstant* _size;
aoqi@0	46
aoqi@0	47	ContiguousSpace* _space;
aoqi@0	48	char* _name_space;
aoqi@0	49
aoqi@0	50	public:
aoqi@0	51
aoqi@0	52	CSpaceCounters(const char* name, int ordinal, size_t max_size,
aoqi@0	53	ContiguousSpace* s, GenerationCounters* gc);
aoqi@0	54
aoqi@0	55	~CSpaceCounters() {
aoqi@0	56	if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtInternal);
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	virtual inline void update_capacity() {
aoqi@0	60	_capacity->set_value(_space->capacity());
aoqi@0	61	}
aoqi@0	62
aoqi@0	63	virtual inline void update_used() {
aoqi@0	64	_used->set_value(_space->used());
aoqi@0	65	}
aoqi@0	66
aoqi@0	67	virtual inline void update_all() {
aoqi@0	68	update_used();
aoqi@0	69	update_capacity();
aoqi@0	70	}
aoqi@0	71
aoqi@0	72	const char* name_space() const { return _name_space; }
aoqi@0	73	};
aoqi@0	74
aoqi@0	75	class ContiguousSpaceUsedHelper : public PerfLongSampleHelper {
aoqi@0	76	private:
aoqi@0	77	ContiguousSpace* _space;
aoqi@0	78
aoqi@0	79	public:
aoqi@0	80	ContiguousSpaceUsedHelper(ContiguousSpace* space) : _space(space) { }
aoqi@0	81
aoqi@0	82	inline jlong take_sample() {
aoqi@0	83	return _space->used();
aoqi@0	84	}
aoqi@0	85	};
aoqi@0	86
aoqi@0	87	#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP