mojo/environment/buffer_tls_impl.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "mojo/environment/buffer_tls_impl.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/threading/thread_local.h"
   9
  10 namespace mojo {
  11 namespace internal {
  12 namespace {
  13
  14 base::LazyInstance<base::ThreadLocalPointer<Buffer> >::Leaky lazy_tls_ptr =
  15     LAZY_INSTANCE_INITIALIZER;
  16
  17 }  // namespace
  18
  19 Buffer* GetCurrentBufferImpl() {
  20   return lazy_tls_ptr.Pointer()->Get();
  21 }
  22
  23 Buffer* SetCurrentBufferImpl(Buffer* buf) {
  24   Buffer* old_buf = lazy_tls_ptr.Pointer()->Get();
  25   lazy_tls_ptr.Pointer()->Set(buf);
  26   return old_buf;
  27 }
  28
  29 }  // namespace internal
  30 }  // namespace mojo