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_JFRRECORDER_HPP 26 #define SHARE_VM_JFR_RECORDER_JFRRECORDER_HPP 27 28 #include "jfr/utilities/jfrAllocation.hpp" 29 30 class JavaThread; 31 class Thread; 32 33 // 34 // Represents the singleton instance of Flight Recorder. 35 // Lifecycle management of recorder components. 36 // 37 class JfrRecorder : public JfrCHeapObj { 38 friend class Jfr; 39 friend void recorderthread_entry(JavaThread*, Thread*); 40 private: 41 static bool _shutting_down; 42 43 static bool create_checkpoint_manager(); 44 static bool create_chunk_repository(); 45 static bool create_java_event_writer(); 46 static bool create_jvmti_agent(); 47 static bool create_os_interface(); 48 static bool create_post_box(); 49 static bool create_recorder_thread(); 50 static bool create_stacktrace_repository(); 51 static bool create_storage(); 52 static bool create_stringpool(); 53 static bool create_thread_sampling(); 54 static bool create_components(); 55 static void destroy_components(); 56 static void on_recorder_thread_exit(); 57 static bool on_vm_start(); 58 static bool on_vm_init(); 59 60 public: 61 static bool is_enabled(); 62 static bool is_disabled(); 63 static bool create(bool simulate_failure); 64 static bool is_created(); 65 static void destroy(); 66 static void start_recording(); 67 static bool is_recording(); 68 static void stop_recording(); is_shutting_down()69 static bool is_shutting_down() { return _shutting_down; } set_is_shutting_down()70 static void set_is_shutting_down() { _shutting_down = true; } 71 }; 72 73 #endif // SHARE_VM_JFR_RECORDER_JFRRECORDER_HPP 74