Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/hSpaceCounters.hpp @ 14909:4ca6dc0799b6
Backout jdk9 merge
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Tue, 01 Apr 2014 13:57:07 +0200 |
| parents | de88570fabfc |
| children |
| rev | line source |
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| 3289 | 1 /* |
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2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. |
| 3289 | 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_HSPACECOUNTERS_HPP | |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_HSPACECOUNTERS_HPP | |
| 27 | |
|
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28 #include "utilities/macros.hpp" |
| 3289 | 29 #include "gc_implementation/shared/generationCounters.hpp" |
| 30 #include "memory/generation.hpp" | |
| 31 #include "runtime/perfData.hpp" | |
| 32 | |
| 33 // A HSpaceCounter is a holder class for performance counters | |
| 34 // that track a collections (logical spaces) in a heap; | |
| 35 | |
| 36 class HeapSpaceUsedHelper; | |
| 37 class G1SpaceMonitoringSupport; | |
| 38 | |
| 6197 | 39 class HSpaceCounters: public CHeapObj<mtGC> { |
| 3289 | 40 friend class VMStructs; |
| 41 | |
| 42 private: | |
| 43 PerfVariable* _capacity; | |
| 44 PerfVariable* _used; | |
| 45 | |
| 46 // Constant PerfData types don't need to retain a reference. | |
| 47 // However, it's a good idea to document them here. | |
| 48 | |
| 49 char* _name_space; | |
| 50 | |
| 51 public: | |
| 52 | |
| 53 HSpaceCounters(const char* name, int ordinal, size_t max_size, | |
| 54 size_t initial_capacity, GenerationCounters* gc); | |
| 55 | |
| 56 ~HSpaceCounters() { | |
| 6197 | 57 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC); |
| 3289 | 58 } |
| 59 | |
| 60 inline void update_capacity(size_t v) { | |
| 61 _capacity->set_value(v); | |
| 62 } | |
| 63 | |
| 64 inline void update_used(size_t v) { | |
| 65 _used->set_value(v); | |
| 66 } | |
| 67 | |
| 68 debug_only( | |
| 69 // for security reasons, we do not allow arbitrary reads from | |
| 70 // the counters as they may live in shared memory. | |
| 71 jlong used() { | |
| 72 return _used->get_value(); | |
| 73 } | |
| 74 jlong capacity() { | |
| 75 return _used->get_value(); | |
| 76 } | |
| 77 ) | |
| 78 | |
| 79 inline void update_all(size_t capacity, size_t used) { | |
| 80 update_capacity(capacity); | |
| 81 update_used(used); | |
| 82 } | |
| 83 | |
| 84 const char* name_space() const { return _name_space; } | |
| 85 }; | |
| 86 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_HSPACECOUNTERS_HPP |