--- /dev/null	2019-01-28 17:47:25.000000000 +0800
+++ new/src/share/vm/jfr/recorder/jfrRecorder.hpp	2019-01-28 17:47:25.000000000 +0800
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_JFR_RECORDER_JFRRECORDER_HPP
+#define SHARE_VM_JFR_RECORDER_JFRRECORDER_HPP
+
+#include "jfr/utilities/jfrAllocation.hpp"
+
+class JavaThread;
+class Thread;
+
+//
+// Represents the singleton instance of Flight Recorder.
+// Lifecycle management of recorder components.
+//
+class JfrRecorder : public JfrCHeapObj {
+  friend class Jfr;
+  friend void recorderthread_entry(JavaThread*, Thread*);
+ private:
+  static bool create_checkpoint_manager();
+  static bool create_chunk_repository();
+  static bool create_jvmti_agent();
+  static bool create_os_interface();
+  static bool create_post_box();
+  static bool create_recorder_thread();
+  static bool create_stacktrace_repository();
+  static bool create_storage();
+  static bool create_stringpool();
+  static bool create_thread_sampling();
+  static bool create_components();
+  static void destroy_components();
+  static void on_recorder_thread_exit();
+  static bool on_vm_start();
+  static bool on_vm_init();
+
+ public:
+  static bool is_enabled();
+  static bool is_disabled();
+  static bool create(bool simulate_failure);
+  static bool is_created();
+  static void destroy();
+  static void start_recording();
+  static bool is_recording();
+  static void stop_recording();
+};
+
+#endif // SHARE_VM_JFR_RECORDER_JFRRECORDER_HPP