--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/recorder/service/jfrRecorderThreadLoop.cpp	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2012, 2018, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "jfr/recorder/jfrRecorder.hpp"
+#include "jfr/recorder/service/jfrPostBox.hpp"
+#include "jfr/recorder/service/jfrRecorderService.hpp"
+#include "jfr/recorder/service/jfrRecorderThread.hpp"
+#include "logging/log.hpp"
+#include "runtime/mutexLocker.hpp"
+#include "runtime/thread.inline.hpp"
+
+//
+// Entry point for "JFR Recorder Thread" message loop.
+// The recorder thread executes service requests collected from the message system.
+//
+void recorderthread_entry(JavaThread* thread, Thread* unused) {
+  assert(thread != NULL, "invariant");
+  #define START (msgs & (MSGBIT(MSG_START)))
+  #define SHUTDOWN (msgs & MSGBIT(MSG_SHUTDOWN))
+  #define ROTATE (msgs & (MSGBIT(MSG_ROTATE)|MSGBIT(MSG_STOP)))
+  #define PROCESS_FULL_BUFFERS (msgs & (MSGBIT(MSG_ROTATE)|MSGBIT(MSG_STOP)|MSGBIT(MSG_FULLBUFFER)))
+  #define SCAVENGE (msgs & (MSGBIT(MSG_DEADBUFFER)))
+
+  JfrPostBox& post_box = JfrRecorderThread::post_box();
+  log_debug(jfr, system)("Recorder thread STARTED");
+
+  {
+    bool done = false;
+    int msgs = 0;
+    JfrRecorderService service;
+    MutexLockerEx msg_lock(JfrMsg_lock);
+
+    // JFR MESSAGE LOOP PROCESSING - BEGIN
+    while (!done) {
+      if (post_box.is_empty()) {
+        JfrMsg_lock->wait(false);
+      }
+      msgs = post_box.collect();
+      JfrMsg_lock->unlock();
+      if (PROCESS_FULL_BUFFERS) {
+        service.process_full_buffers();
+      }
+      if (SCAVENGE) {
+        service.scavenge();
+      }
+      // Check amount of data written to chunk already
+      // if it warrants asking for a new chunk
+      service.evaluate_chunk_size_for_rotation();
+      if (START) {
+        service.start();
+      } else if (ROTATE) {
+        service.rotate(msgs);
+      }
+      JfrMsg_lock->lock();
+      post_box.notify_waiters();
+      if (SHUTDOWN) {
+        log_debug(jfr, system)("Request to STOP recorder");
+        done = true;
+      }
+    } // JFR MESSAGE LOOP PROCESSING - END
+
+  } // JfrMsg_lock scope
+
+  assert(!JfrMsg_lock->owned_by_self(), "invariant");
+  post_box.notify_collection_stop();
+  JfrRecorder::on_recorder_thread_exit();
+
+  #undef START
+  #undef SHUTDOWN
+  #undef ROTATE
+  #undef PROCESS_FULL_BUFFERS
+  #undef SCAVENGE
+}