Add default Bluetooth HAL implementation
Also added initial target-side functional test.
Test: bluetooth_hidl_hal_test
Bug: 31972505
Change-Id: I1f574a5b2b53d7fbf65dbb4e1aaa5f8b6c5a9448
diff --git a/bluetooth/1.0/default/async_fd_watcher.h b/bluetooth/1.0/default/async_fd_watcher.h
new file mode 100644
index 0000000..1e4da8c
--- /dev/null
+++ b/bluetooth/1.0/default/async_fd_watcher.h
@@ -0,0 +1,63 @@
+//
+// Copyright 2016 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.
+//
+
+#pragma once
+
+#include <mutex>
+#include <thread>
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace V1_0 {
+namespace implementation {
+
+using ReadCallback = std::function<void(int)>;
+
+class AsyncFdWatcher {
+ public:
+ AsyncFdWatcher() = default;
+ ~AsyncFdWatcher();
+
+ int WatchFdForNonBlockingReads(int file_descriptor,
+ const ReadCallback& on_read_fd_ready_callback);
+ void StopWatchingFileDescriptor();
+
+ private:
+ AsyncFdWatcher(const AsyncFdWatcher&) = delete;
+ AsyncFdWatcher& operator=(const AsyncFdWatcher&) = delete;
+
+ int tryStartThread();
+ int stopThread();
+ int notifyThread();
+ void ThreadRoutine();
+
+ std::atomic_bool running_{false};
+ std::thread thread_;
+ std::mutex internal_mutex_;
+
+ int read_fd_;
+ int notification_listen_fd_;
+ int notification_write_fd_;
+ ReadCallback cb_;
+};
+
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace bluetooth
+} // namespace hardware
+} // namespace android