Add GnssBatching AIDL HAL (hardware/interfaces)
Bug: 201253590
Test: atest VtsHalGnssTargetTest
Change-Id: Ied71c609dff714de06e2792f51d54a2dbddbb9d8
diff --git a/gnss/aidl/default/GnssBatching.h b/gnss/aidl/default/GnssBatching.h
new file mode 100644
index 0000000..7cd6e85
--- /dev/null
+++ b/gnss/aidl/default/GnssBatching.h
@@ -0,0 +1,53 @@
+/*
+ * 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 <aidl/android/hardware/gnss/BnGnssBatching.h>
+#include <atomic>
+#include <thread>
+
+namespace aidl::android::hardware::gnss {
+
+struct GnssBatching : public BnGnssBatching {
+ public:
+ GnssBatching();
+ ~GnssBatching();
+ ndk::ScopedAStatus init(const std::shared_ptr<IGnssBatchingCallback>& callback) override;
+ ndk::ScopedAStatus getBatchSize(int* size) override;
+ ndk::ScopedAStatus start(int64_t periodNanos, int flags) override;
+ ndk::ScopedAStatus flush() override;
+ ndk::ScopedAStatus stop() override;
+ ndk::ScopedAStatus cleanup() override;
+
+ private:
+ void batchLocation(const GnssLocation&);
+
+ // Guarded by mMutex
+ static std::shared_ptr<IGnssBatchingCallback> sCallback;
+
+ std::thread mThread;
+ std::atomic<bool> mIsActive;
+ std::atomic<long> mMinIntervalMs;
+ std::atomic<bool> mWakeUpOnFifoFull;
+
+ // Synchronization lock for sCallback
+ mutable std::mutex mMutex;
+
+ std::vector<GnssLocation> mBatchedLocations;
+};
+
+} // namespace aidl::android::hardware::gnss