duke@435: /*
mikael@4153:  * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP
stefank@2314: #define SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP
stefank@2314: 
stefank@2314: #include "runtime/perfData.hpp"
stefank@2314: 
duke@435: // CollectorCounters is a holder class for performance counters
duke@435: // that track a collector
duke@435: 
zgu@3900: class CollectorCounters: public CHeapObj<mtGC> {
duke@435:   friend class VMStructs;
duke@435: 
duke@435:   private:
duke@435:     PerfCounter*      _invocations;
duke@435:     PerfCounter*      _time;
duke@435:     PerfVariable*     _last_entry_time;
duke@435:     PerfVariable*     _last_exit_time;
duke@435: 
duke@435:     // Constant PerfData types don't need to retain a reference.
duke@435:     // However, it's a good idea to document them here.
duke@435:     // PerfStringConstant*     _name;
duke@435: 
duke@435:     char*             _name_space;
duke@435: 
duke@435:   public:
duke@435: 
duke@435:     CollectorCounters(const char* name, int ordinal);
duke@435: 
duke@435:     ~CollectorCounters() {
zgu@3900:       if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC);
duke@435:     }
duke@435: 
duke@435:     inline PerfCounter* invocation_counter() const  { return _invocations; }
duke@435: 
duke@435:     inline PerfCounter* time_counter() const        { return _time; }
duke@435: 
duke@435:     inline PerfVariable* last_entry_counter() const { return _last_entry_time; }
duke@435: 
duke@435:     inline PerfVariable* last_exit_counter() const  { return _last_exit_time; }
duke@435: 
duke@435:     const char* name_space() const                  { return _name_space; }
duke@435: };
duke@435: 
duke@435: class TraceCollectorStats: public PerfTraceTimedEvent {
duke@435: 
duke@435:   protected:
duke@435:     CollectorCounters* _c;
duke@435: 
duke@435:   public:
duke@435:     inline TraceCollectorStats(CollectorCounters* c) :
duke@435:            PerfTraceTimedEvent(c->time_counter(), c->invocation_counter()),
duke@435:            _c(c) {
duke@435: 
duke@435:       if (UsePerfData) {
duke@435:          _c->last_entry_counter()->set_value(os::elapsed_counter());
duke@435:       }
duke@435:     }
duke@435: 
duke@435:     inline ~TraceCollectorStats() {
duke@435:       if (UsePerfData) _c->last_exit_counter()->set_value(os::elapsed_counter());
duke@435:     }
duke@435: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP