Mercurial > hg > truffle
view src/share/vm/gc_implementation/shared/generationCounters.hpp @ 1407:09e7826ecf01
Can now call to Java code from the VM.
Need to specify a JAR file with the classes from the Maxine subprojects C1X, CRI, and HotSpotVM in the bootclasspath.
See HotSpotVM/README.txt in the Maxine sources for details.
author | Thomas Wuerthinger <thomas.wuerthinger@gmail.com> |
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date | Tue, 11 May 2010 19:24:14 +0200 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * 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; } };