| /* |
| * Copyright (c) 2002, 2015, 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_VM_GC_SHARED_COLLECTORCOUNTERS_HPP |
| #define SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP |
| |
| #include "runtime/perfData.hpp" |
| |
| // CollectorCounters is a holder class for performance counters |
| // that track a collector |
| |
| class CollectorCounters: public CHeapObj<mtGC> { |
| 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()); |
| } |
| }; |
| |
| #endif // SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP |