1 /* 2 * Copyright (c) 2012, 2021, 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_SERVICE_JFRMEMORYSIZER_HPP 26 #define SHARE_VM_JFR_RECORDER_SERVICE_JFRMEMORYSIZER_HPP 27 28 #include "memory/allocation.hpp" 29 #include "utilities/globalDefinitions.hpp" 30 31 extern const julong MIN_BUFFER_COUNT; 32 extern const julong MIN_GLOBAL_BUFFER_SIZE; 33 extern const julong MIN_MEMORY_SIZE; 34 extern const julong MIN_THREAD_BUFFER_SIZE; 35 extern const julong MAX_GLOBAL_BUFFER_SIZE; 36 extern const julong MAX_THREAD_BUFFER_SIZE; 37 38 struct JfrMemoryOptions { 39 julong memory_size; 40 julong global_buffer_size; 41 julong buffer_count; 42 julong thread_buffer_size; 43 bool memory_size_configured; 44 bool global_buffer_size_configured; 45 bool buffer_count_configured; 46 bool thread_buffer_size_configured; 47 }; 48 49 // 50 // Encapsulates sizing of memory options 51 // The options parameter is modified with updated values. 52 // 53 class JfrMemorySizer : AllStatic { 54 public: 55 static bool adjust_options(JfrMemoryOptions* options); 56 }; 57 58 #endif // SHARE_VM_JFR_RECORDER_SERVICE_JFRMEMORYSIZER_HPP 59