Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/shared/generationCounters.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/gc_implementation/shared/generationCounters.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,62 @@ +/* + * Copyright 2002-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// A GenerationCounter is a holder class for performance counters +// that track a generation + +class GenerationCounters: public CHeapObj { + friend class VMStructs; + + protected: + PerfVariable* _current_size; + VirtualSpace* _virtual_space; + + // Constant PerfData types don't need to retain a reference. + // However, it's a good idea to document them here. + // PerfStringConstant* _name; + // PerfConstant* _min_size; + // PerfConstant* _max_size; + // PerfConstant* _spaces; + + char* _name_space; + + // This constructor is only meant for use with the PSGenerationCounters + // constructor. The need for such an constructor should be eliminated + // when VirtualSpace and PSVirtualSpace are unified. + GenerationCounters() : _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {} + public: + + GenerationCounters(const char* name, int ordinal, int spaces, + VirtualSpace* v); + + ~GenerationCounters() { + if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space); + } + + virtual void update_all() { + _current_size->set_value(_virtual_space->committed_size()); + } + + const char* name_space() const { return _name_space; } +};