1 files changed, 63 insertions, 0 deletions
diff --git a/mojo/embedder/channel_init.h b/mojo/embedder/channel_init.h
new file mode 100644
index 0000000..26a6452
--- /dev/null
+++ b/mojo/embedder/channel_init.h
@@ -0,0 +1,63 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_EMBEDDER_CHANNEL_INIT_H_
+#define MOJO_EMBEDDER_CHANNEL_INIT_H_
+
+#include "base/files/file.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "mojo/public/cpp/system/core.h"
+#include "mojo/system/system_impl_export.h"
+
+namespace base {
+class MessageLoopProxy;
+class TaskRunner;
+}
+
+namespace mojo {
+namespace embedder {
+struct ChannelInfo;
+}
+
+namespace embedder {
+
+// |ChannelInit| handles creation (and destruction) of the Mojo channel. It is
+// not thread-safe, but may be used on any single thread (with a |MessageLoop|).
+class MOJO_SYSTEM_IMPL_EXPORT ChannelInit {
+ public:
+  ChannelInit();
+  ~ChannelInit();
+
+  // Initializes the channel. This takes ownership of |file|. Returns the
+  // primordial MessagePipe for the channel.
+  mojo::ScopedMessagePipeHandle Init(
+      base::PlatformFile file,
+      scoped_refptr<base::TaskRunner> io_thread_task_runner);
+
+  // Notifies the channel that we (hence it) will soon be destroyed.
+  void WillDestroySoon();
+
+ private:
+  // Invoked on the thread on which this object lives once the channel has been
+  // established. (This is a static method that takes a weak pointer to self,
+  // since we want to destroy the channel even if we're destroyed.)
+  static void OnCreatedChannel(base::WeakPtr<ChannelInit> self,
+                               scoped_refptr<base::TaskRunner> io_thread,
+                               ChannelInfo* channel);
+
+  scoped_refptr<base::TaskRunner> io_thread_task_runner_;
+
+  // If non-null the channel has been established.
+  ChannelInfo* channel_info_;
+
+  base::WeakPtrFactory<ChannelInit> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChannelInit);
+};
+
+}  // namespace embedder
+}  // namespace mojo
+
+#endif  // MOJO_EMBEDDER_CHANNEL_INIT_H_