• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/gc_implementation/shared/generationCounters.hpp@b52782ae3880 (annotated)

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

Thu, 21 Apr 2011 10:23:44 -0700

author

jmasa

date

Thu, 21 Apr 2011 10:23:44 -0700

changeset 2821

b52782ae3880

parent 2314

f95d63e2154a

child 3176

8229bd737950

permissions

-rw-r--r--

6946417: G1: Java VisualVM does not support G1 properly.
Summary: Added counters for jstat
Reviewed-by: tonyp, jwilhelm, stefank, ysr, johnc

duke@435	1	/*
jmasa@2821	2	* Copyright (c) 2002, 2011, 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_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
stefank@2314	26	#define SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
stefank@2314	27
stefank@2314	28	#include "runtime/perfData.hpp"
stefank@2314	29	#include "runtime/virtualspace.hpp"
stefank@2314	30
duke@435	31	// A GenerationCounter is a holder class for performance counters
duke@435	32	// that track a generation
duke@435	33
duke@435	34	class GenerationCounters: public CHeapObj {
duke@435	35	friend class VMStructs;
duke@435	36
duke@435	37	protected:
duke@435	38	PerfVariable* _current_size;
duke@435	39	VirtualSpace* _virtual_space;
duke@435	40
duke@435	41	// Constant PerfData types don't need to retain a reference.
duke@435	42	// However, it's a good idea to document them here.
duke@435	43	// PerfStringConstant* _name;
duke@435	44	// PerfConstant* _min_size;
duke@435	45	// PerfConstant* _max_size;
duke@435	46	// PerfConstant* _spaces;
duke@435	47
duke@435	48	char* _name_space;
duke@435	49
duke@435	50	// This constructor is only meant for use with the PSGenerationCounters
duke@435	51	// constructor. The need for such an constructor should be eliminated
duke@435	52	// when VirtualSpace and PSVirtualSpace are unified.
duke@435	53	GenerationCounters() : _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
duke@435	54	public:
duke@435	55
duke@435	56	GenerationCounters(const char* name, int ordinal, int spaces,
duke@435	57	VirtualSpace* v);
duke@435	58
duke@435	59	~GenerationCounters() {
duke@435	60	if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
duke@435	61	}
duke@435	62
duke@435	63	virtual void update_all() {
jmasa@2821	64	_current_size->set_value(_virtual_space == NULL ? 0 :
jmasa@2821	65	_virtual_space->committed_size());
duke@435	66	}
duke@435	67
duke@435	68	const char* name_space() const { return _name_space; }
jmasa@2821	69
duke@435	70	};
stefank@2314	71	#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP