/*
* Copyright ( c ) 2011 , 2019 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*
*/
#ifndef SHARE_GC_SHARED_HSPACECOUNTERS_HPP
#define SHARE_GC_SHARED_HSPACECOUNTERS_HPP
#include "memory/allocation.hpp"
#include "runtime/perfData.hpp"
#include "utilities/macros.hpp"
// A HSpaceCounter is a holder class for performance counters
// that track a collections (logical spaces) in a heap;
class HSpaceCounters: public CHeapObj<mtGC> {
friend class VMStructs;
private :
PerfVariable* _capacity;
PerfVariable* _used;
// Constant PerfData types don't need to retain a reference.
// However, it's a good idea to document them here.
char * _name_space;
public :
HSpaceCounters(const char * name_space, const char * name, int ordinal,
size_t max_size, size_t initial_capacity);
~HSpaceCounters();
void update_capacity(size_t v);
void update_used(size_t v);
void update_all(size_t capacity, size_t used);
debug_only(
// for security reasons, we do not allow arbitrary reads from
// the counters as they may live in shared memory.
jlong used();
jlong capacity();
)
const char * name_space() const { return _name_space; }
};
#endif // SHARE_GC_SHARED_HSPACECOUNTERS_HPP
Messung V0.5 in Prozent C=97 H=92 G=94
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
*© Formatika GbR, Deutschland