--- /dev/null	2017-11-09 09:38:01.297999907 +0100
+++ new/src/hotspot/share/jfr/writers/jfrStreamWriterHost.inline.hpp	2018-04-09 15:31:19.641058407 +0200
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2016, 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.
+ *
+ */
+
+#ifndef SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_INLINE_HPP
+#define SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_INLINE_HPP
+
+#include "jfr/writers/jfrStreamWriterHost.hpp"
+#include "runtime/os.hpp"
+
+template <typename Adapter, typename AP>
+StreamWriterHost<Adapter, AP>::StreamWriterHost(typename Adapter::StorageType* storage, Thread* thread) :
+  MemoryWriterHost<Adapter, AP>(storage, thread), _stream_pos(0), _fd(invalid_fd) {
+}
+
+template <typename Adapter, typename AP>
+StreamWriterHost<Adapter, AP>::StreamWriterHost(typename Adapter::StorageType* storage, size_t size) :
+  MemoryWriterHost<Adapter, AP>(storage, size), _stream_pos(0), _fd(invalid_fd) {
+}
+
+template <typename Adapter, typename AP>
+StreamWriterHost<Adapter, AP>::StreamWriterHost(Thread* thread) :
+  MemoryWriterHost<Adapter, AP>(thread), _stream_pos(0), _fd(invalid_fd) {
+}
+
+template <typename Adapter, typename AP>
+inline intptr_t StreamWriterHost<Adapter, AP>::current_stream_position() const {
+  return this->used_offset() + _stream_pos;
+}
+
+template <typename Adapter, typename AP>
+inline bool StreamWriterHost<Adapter, AP>::accommodate(size_t used, size_t requested) {
+  if (used > 0) {
+    this->flush(used);
+  }
+  assert(this->used_size() == 0, "invariant");
+  if (this->available_size() >= requested) {
+    return true;
+  }
+  return StorageHost<Adapter, AP>::accommodate(0, requested);
+}
+
+template <typename Adapter, typename AP>
+inline void StreamWriterHost<Adapter, AP>::bytes(void* dest, const void* buf, size_t len) {
+  if (len > this->available_size()) {
+    this->write_unbuffered(buf, len);
+    return;
+  }
+  MemoryWriterHost<Adapter, AP>::bytes(dest, buf, len);
+}
+
+template <typename Adapter, typename AP>
+inline void StreamWriterHost<Adapter, AP>::flush(size_t size) {
+  assert(size > 0, "invariant");
+  assert(this->is_valid(), "invariant");
+  _stream_pos += os::write(_fd, this->start_pos(), (int)size);
+  StorageHost<Adapter, AP>::reset();
+  assert(0 == this->used_offset(), "invariant");
+}
+
+template <typename Adapter, typename AP>
+inline bool StreamWriterHost<Adapter, AP>::has_valid_fd() const {
+  return invalid_fd != _fd;
+}
+
+template <typename Adapter, typename AP>
+inline intptr_t StreamWriterHost<Adapter, AP>::current_offset() const {
+  return current_stream_position();
+}
+
+template <typename Adapter, typename AP>
+void StreamWriterHost<Adapter, AP>::seek(intptr_t offset) {
+  this->flush();
+  assert(0 == this->used_offset(), "can only seek from beginning");
+  _stream_pos = os::seek_to_file_offset(_fd, offset);
+}
+
+template <typename Adapter, typename AP>
+void StreamWriterHost<Adapter, AP>::flush() {
+  if (this->is_valid()) {
+    const size_t used = this->used_size();
+    if (used > 0) {
+      this->flush(used);
+    }
+  }
+}
+
+template <typename Adapter, typename AP>
+void StreamWriterHost<Adapter, AP>::write_unbuffered(const void* buf, size_t len) {
+  this->flush();
+  assert(0 == this->used_offset(), "can only seek from beginning");
+  while (len > 0) {
+    const int n = MIN2<int>((int)len, INT_MAX);
+    _stream_pos += os::write(_fd, buf, n);
+    len -= n;
+  }
+}
+
+template <typename Adapter, typename AP>
+inline bool StreamWriterHost<Adapter, AP>::is_valid() const {
+  return has_valid_fd();
+}
+
+template <typename Adapter, typename AP>
+inline void StreamWriterHost<Adapter, AP>::close_fd() {
+  assert(this->has_valid_fd(), "closing invalid fd!");
+  os::close(_fd);
+  _fd = invalid_fd;
+}
+
+template <typename Adapter, typename AP>
+inline void StreamWriterHost<Adapter, AP>::reset(fio_fd fd) {
+  assert(!this->has_valid_fd(), "invariant");
+  _fd = fd;
+  _stream_pos = 0;
+  this->hard_reset();
+}
+
+#endif // SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_INLINE_HPP