1 files changed, 55 insertions, 0 deletions
diff --git a/hal/sensors/2.1/SensorThread.h b/hal/sensors/2.1/SensorThread.h
new file mode 100644
index 0000000..e0cf3ce
--- /dev/null
+++ b/hal/sensors/2.1/SensorThread.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2021 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 <atomic>
+#include <condition_variable>
+#include <mutex>
+#include <thread>
+
+namespace android::hardware::sensors::V2_1::subhal::implementation {
+
+class SensorBase;
+
+class SensorThread {
+  public:
+    explicit SensorThread(SensorBase*);
+    ~SensorThread();
+
+    void notifyAll();
+    void start();
+    void stop();
+    std::unique_lock<std::mutex> lock();
+    void join();
+
+    bool isStopped() const;
+
+    template <typename Predicate>
+    void wait(Predicate p) {
+        auto lck(lock());
+        mWaitCV.wait(lck, p);
+    }
+
+  private:
+    SensorBase* mSensor;
+    std::atomic_bool mStopThread;
+    std::condition_variable mWaitCV;
+    std::mutex mRunMutex;
+    std::thread mThread;
+};
+
+}  // namespace android::hardware::sensors::V2_1::subhal::implementation