Mercurial > hg > truffle
view src/share/vm/gc_implementation/shared/collectorCounters.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. * */ // CollectorCounters is a holder class for performance counters // that track a collector class CollectorCounters: public CHeapObj { friend class VMStructs; private: PerfCounter* _invocations; PerfCounter* _time; PerfVariable* _last_entry_time; PerfVariable* _last_exit_time; // Constant PerfData types don't need to retain a reference. // However, it's a good idea to document them here. // PerfStringConstant* _name; char* _name_space; public: CollectorCounters(const char* name, int ordinal); ~CollectorCounters() { if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space); } inline PerfCounter* invocation_counter() const { return _invocations; } inline PerfCounter* time_counter() const { return _time; } inline PerfVariable* last_entry_counter() const { return _last_entry_time; } inline PerfVariable* last_exit_counter() const { return _last_exit_time; } const char* name_space() const { return _name_space; } }; class TraceCollectorStats: public PerfTraceTimedEvent { protected: CollectorCounters* _c; public: inline TraceCollectorStats(CollectorCounters* c) : PerfTraceTimedEvent(c->time_counter(), c->invocation_counter()), _c(c) { if (UsePerfData) { _c->last_entry_counter()->set_value(os::elapsed_counter()); } } inline ~TraceCollectorStats() { if (UsePerfData) _c->last_exit_counter()->set_value(os::elapsed_counter()); } };