1 /* 2 * Copyright (c) 2012, 2018, 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_ACCESS_JFROPTIONSET_HPP 26 #define SHARE_VM_JFR_RECORDER_ACCESS_JFROPTIONSET_HPP 27 28 #include "jni.h" 29 #include "memory/allocation.hpp" 30 #include "utilities/exceptions.hpp" 31 32 // 33 // Command-line options and defaults 34 // 35 class JfrOptionSet : public AllStatic { 36 friend class JfrRecorder; 37 private: 38 static jlong _max_chunk_size; 39 static jlong _global_buffer_size; 40 static jlong _thread_buffer_size; 41 static jlong _memory_size; 42 static jlong _num_global_buffers; 43 static jlong _old_object_queue_size; 44 static u4 _stack_depth; 45 static jboolean _sample_threads; 46 static jboolean _retransform; 47 static jboolean _sample_protection; 48 49 static bool initialize(Thread* thread); 50 static bool configure(TRAPS); 51 static bool adjust_memory_options(); 52 53 public: 54 static jlong max_chunk_size(); 55 static void set_max_chunk_size(jlong value); 56 static jlong global_buffer_size(); 57 static void set_global_buffer_size(jlong value); 58 static jlong thread_buffer_size(); 59 static void set_thread_buffer_size(jlong value); 60 static jlong memory_size(); 61 static void set_memory_size(jlong value); 62 static jlong num_global_buffers(); 63 static void set_num_global_buffers(jlong value); 64 static jint old_object_queue_size(); 65 static void set_old_object_queue_size(jlong value); 66 static u4 stackdepth(); 67 static void set_stackdepth(u4 depth); 68 static bool sample_threads(); 69 static void set_sample_threads(jboolean sample); 70 static bool can_retransform(); 71 static void set_retransform(jboolean value); 72 static bool compressed_integers(); 73 static bool allow_retransforms(); 74 static bool allow_event_retransforms(); 75 static bool sample_protection(); 76 DEBUG_ONLY(static void set_sample_protection(jboolean protection);) 77 78 static bool parse_start_flight_recording(const JavaVMOption** option, char* tail); 79 static bool parse_flight_recorder_options(const JavaVMOption** option, char* tail); 80 81 }; 82 83 #endif // SHARE_VM_JFR_RECORDER_ACCESS_JFROPTIONSET_HPP