Add BinderWatcher.
Add a class that bridges between base::MessageLoop and
libbinder. When instantiated, the binder FD will be watched
and libbinder will be notified about transactions.
Change-Id: If68d2765fa5161196489c4004360f2d0c56e59d0
diff --git a/chromeos/binder_watcher.h b/chromeos/binder_watcher.h
new file mode 100644
index 0000000..198f4f8
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+++ b/chromeos/binder_watcher.h
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+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LIBCHROMEOS_CHROMEOS_BINDER_WATCHER_H_
+#define LIBCHROMEOS_CHROMEOS_BINDER_WATCHER_H_
+
+#include <base/macros.h>
+#include <base/message_loop/message_loop.h>
+
+namespace chromeos {
+
+// Bridge between libbinder and base::MessageLoop. Construct at startup to make
+// the message loop watch for binder events and pass them to libbinder.
+class BinderWatcher : public base::MessageLoopForIO::Watcher {
+ public:
+ BinderWatcher();
+ ~BinderWatcher() override;
+
+ // Initializes the object, returning true on success.
+ bool Init();
+
+ // base::MessageLoopForIO::Watcher:
+ void OnFileCanReadWithoutBlocking(int fd) override;
+ void OnFileCanWriteWithoutBlocking(int fd) override;
+
+ private:
+ base::MessageLoopForIO::FileDescriptorWatcher watcher_;
+
+ DISALLOW_COPY_AND_ASSIGN(BinderWatcher);
+};
+
+} // namespace chromeos
+
+#endif // LIBCHROMEOS_CHROMEOS_BINDER_WATCHER_H_