[android/platform-hardware-interfaces.git] / audio / common / all-versions / default / include / common / all-versions / default / EffectMap.h
diff --git a/audio/common/all-versions/default/include/common/all-versions/default/EffectMap.h b/audio/common/all-versions/default/include/common/all-versions/default/EffectMap.h
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+/*
+ * Copyright (C) 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.
+ */
+
+#ifndef android_hardware_audio_common_EffectMap_H_
+#define android_hardware_audio_common_EffectMap_H_
+
+#include <mutex>
+
+#include <hardware/audio_effect.h>
+#include <utils/KeyedVector.h>
+#include <utils/Singleton.h>
+
+namespace android {
+
+// This class needs to be in 'android' ns because Singleton macros require that.
+class EffectMap : public Singleton<EffectMap> {
+ public:
+ static const uint64_t INVALID_ID;
+
+ uint64_t add(effect_handle_t handle);
+ effect_handle_t get(const uint64_t& id);
+ void remove(effect_handle_t handle);
+
+ private:
+ static uint64_t makeUniqueId();
+
+ std::mutex mLock;
+ KeyedVector<uint64_t, effect_handle_t> mEffects;
+};
+
+} // namespace android
+
+#endif // android_hardware_audio_common_EffectMap_H_