--- /dev/null	2019-01-28 17:48:37.000000000 +0800
+++ new/src/share/vm/jfr/writers/jfrStorageHost.inline.hpp	2019-01-28 17:48:37.000000000 +0800
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2016, 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_WRITERS_JFRSTORAGEHOST_INLINE_HPP
+#define SHARE_VM_JFR_WRITERS_JFRSTORAGEHOST_INLINE_HPP
+
+#include "jfr/writers/jfrStorageHost.hpp"
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::bind() {
+  if (is_backed()) {
+    this->hard_reset();
+    assert(is_valid(), "invariant");
+    return;
+  }
+  this->set_start_pos(NULL);
+  this->set_current_pos((const u1*)NULL);
+  this->set_end_pos(NULL);
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::soft_reset() {
+  this->set_start_pos(this->current_pos());
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::hard_reset() {
+  this->set_start_pos(_adapter.pos());
+  this->set_current_pos(_adapter.pos());
+  this->set_end_pos(_adapter.end());
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::cancel() {
+  this->set_end_pos(NULL);
+}
+
+template <typename Adapter, typename AP>
+inline bool StorageHost<Adapter, AP>::is_backed() {
+  return _adapter.storage() != NULL;
+}
+
+template <typename Adapter, typename AP>
+inline bool StorageHost<Adapter, AP>::accommodate(size_t used, size_t requested) {
+  if (!_adapter.flush(used, requested)) {
+    this->cancel();
+    return false;
+  }
+  assert(is_backed(), "invariant");
+  this->hard_reset();
+  this->set_current_pos(used);
+  return true;
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::commit() {
+  if (this->is_valid()) {
+    assert(_adapter.pos() == this->start_pos(), "invariant");
+    assert(_adapter.end() == this->end_pos(), "invariant");
+    u1* new_position = this->current_pos();
+    _adapter.commit(new_position);
+    this->set_start_pos(new_position);
+  }
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::release() {
+  _adapter.release();
+}
+
+template <typename Adapter, typename AP>
+inline StorageHost<Adapter, AP>::StorageHost(typename Adapter::StorageType* storage, Thread* thread) : Position<AP>(), _adapter(storage, thread) {
+  bind();
+}
+
+template <typename Adapter, typename AP>
+inline StorageHost<Adapter, AP>::StorageHost(typename Adapter::StorageType* storage, size_t size) : Position<AP>(), _adapter(storage, size) {
+  bind();
+}
+
+template <typename Adapter, typename AP>
+inline StorageHost<Adapter, AP>::StorageHost(Thread* thread) : Position<AP>(), _adapter(thread) {
+  bind();
+}
+
+template <typename Adapter, typename AP>
+inline bool StorageHost<Adapter, AP>::is_valid() const {
+  return this->end_pos() != NULL;
+}
+
+template <typename Adapter, typename AP>
+inline typename Adapter::StorageType* StorageHost<Adapter, AP>::storage() {
+  return _adapter.storage();
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::set_storage(typename Adapter::StorageType* storage) {
+  _adapter.set_storage(storage);
+  bind();
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::flush() {
+  this->accommodate(this->is_valid() ? this->used_size() : 0, 0);
+}
+
+template <typename Adapter, typename AP>
+inline void StorageHost<Adapter, AP>::seek(intptr_t offset) {
+  if (this->is_valid()) {
+    assert(offset >= 0, "negative offsets not supported");
+    assert(this->start_pos() + offset <= this->end_pos(), "invariant");
+    assert(this->start_pos() + offset >= this->start_pos(), "invariant");
+    this->set_current_pos(this->start_pos() + offset);
+  }
+}
+
+#endif // SHARE_VM_JFR_WRITERS_JFRSTORAGEHOST_INLINE_HPP