1 /* 2 * Copyright (c) 2016, 2019, 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_JFR_RECORDER_STRINGPOOL_JFRSTRINGPOOLWRITER_HPP 26 #define SHARE_VM_JFR_RECORDER_STRINGPOOL_JFRSTRINGPOOLWRITER_HPP 27 28 #include "memory/allocation.hpp" 29 #include "jfr/recorder/stringpool/jfrStringPoolBuffer.hpp" 30 #include "jfr/writers/jfrEventWriterHost.hpp" 31 #include "jfr/writers/jfrMemoryWriterHost.hpp" 32 #include "jfr/writers/jfrStorageAdapter.hpp" 33 34 class Thread; 35 36 class JfrStringPoolFlush : public StackObj { 37 public: 38 typedef JfrStringPoolBuffer Type; 39 JfrStringPoolFlush(Type* old, size_t used, size_t requested, Thread* t); 40 Type* result() { return _result; } 41 private: 42 Type* _result; 43 }; 44 45 typedef Adapter<JfrStringPoolFlush> JfrStringPoolAdapter; 46 typedef AcquireReleaseMemoryWriterHost<JfrStringPoolAdapter, StackObj> JfrTransactionalStringPoolWriter; 47 typedef EventWriterHost<BigEndianEncoder, CompressedIntegerEncoder, JfrTransactionalStringPoolWriter> JfrStringPoolWriterBase; 48 49 class JfrStringPoolWriter : public JfrStringPoolWriterBase { 50 private: 51 size_t _nof_strings; 52 public: 53 JfrStringPoolWriter(Thread* thread); 54 ~JfrStringPoolWriter(); 55 void inc_nof_strings(); 56 }; 57 58 #endif // SHARE_VM_JFR_RECORDER_STRINGPOOL_JFRSTRINGPOOLWRITER_HPP