Index: content/common/mojo/channel_init.h |
diff --git a/content/common/mojo/channel_init.h b/content/common/mojo/channel_init.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..659d4bb55f11f297fc9fddd68a5be51874b81819 |
--- /dev/null |
+++ b/content/common/mojo/channel_init.h |
@@ -0,0 +1,64 @@ |
+// Copyright 2015 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 CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ |
+#define CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ |
+ |
+#include "base/files/file.h" |
+#include "base/memory/ref_counted.h" |
+#include "base/memory/weak_ptr.h" |
+#include "content/common/content_export.h" |
+#include "ipc/mojo/scoped_ipc_support.h" |
+#include "third_party/mojo/src/mojo/edk/embedder/channel_info_forward.h" |
+#include "third_party/mojo/src/mojo/public/cpp/system/message_pipe.h" |
+ |
+namespace base { |
+class MessageLoopProxy; |
+class TaskRunner; |
+} |
+ |
+namespace content { |
+ |
+// 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 CONTENT_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(); |
+ |
+ // Get/Set a shared I/O TaskRunner for children to use in single process mode. |
+ static scoped_refptr<base::TaskRunner> GetSingleProcessIOTaskRunner(); |
+ static void SetSingleProcessIOTaskRunner( |
+ scoped_refptr<base::TaskRunner> io_task_runner); |
+ |
+ 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 if we were destroyed first. |
+ static void OnCreatedChannel( |
+ base::WeakPtr<ChannelInit> self, |
+ scoped_ptr<IPC::ScopedIPCSupport> ipc_support, |
+ mojo::embedder::ChannelInfo* channel); |
+ |
+ // If non-null the channel has been established. |
+ mojo::embedder::ChannelInfo* channel_info_; |
+ |
+ scoped_ptr<IPC::ScopedIPCSupport> ipc_support_; |
+ base::WeakPtrFactory<ChannelInit> weak_factory_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(ChannelInit); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ |