1 /* 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_SPACECOUNTERS_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_SPACECOUNTERS_HPP 27 28 #ifndef SERIALGC 29 #include "gc_implementation/shared/generationCounters.hpp" 30 #include "gc_implementation/shared/immutableSpace.hpp" 31 #include "gc_implementation/shared/mutableSpace.hpp" 32 #include "runtime/perfData.hpp" 33 #endif 34 35 // A SpaceCounter is a holder class for performance counters 36 // that track a space; 37 38 class SpaceCounters: public CHeapObj { 39 friend class VMStructs; 40 41 private: 42 PerfVariable* _capacity; 43 PerfVariable* _used; 44 45 // Constant PerfData types don't need to retain a reference. 46 // However, it's a good idea to document them here. 47 // PerfConstant* _size; 48 49 MutableSpace* _object_space; 50 char* _name_space; 51 52 public: 53 54 SpaceCounters(const char* name, int ordinal, size_t max_size, 55 MutableSpace* m, GenerationCounters* gc); 56 57 ~SpaceCounters() { 58 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space); 59 } 60 61 inline void update_capacity() { 62 _capacity->set_value(_object_space->capacity_in_bytes()); 63 } 64 65 inline void update_used() { 66 _used->set_value(_object_space->used_in_bytes()); 67 } 68 69 inline void update_all() { 70 update_used(); 71 update_capacity(); 72 } 73 74 const char* name_space() const { return _name_space; } 75 }; 76 77 class MutableSpaceUsedHelper: public PerfLongSampleHelper { 78 private: 79 MutableSpace* _m; 80 81 public: 82 MutableSpaceUsedHelper(MutableSpace* m) : _m(m) { } 83 84 inline jlong take_sample() { 85 return _m->used_in_bytes(); 86 } 87 }; 88 89 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_SPACECOUNTERS_HPP