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/*
* Copyright (C) 2017 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_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
#include "VirtualProgram.h"
#include <mutex>
#include <vector>
namespace android {
namespace hardware {
namespace broadcastradio {
namespace V1_1 {
namespace implementation {
/**
* A radio frequency space mock.
*
* This represents all broadcast waves in the air for a given radio technology,
* not a captured station list in the radio tuner memory.
*
* It's meant to abstract out radio content from default tuner implementation.
*/
class VirtualRadio {
public:
VirtualRadio(const std::vector<VirtualProgram> initialList);
std::vector<VirtualProgram> getProgramList();
bool getProgram(const ProgramSelector& selector, VirtualProgram& program);
private:
std::mutex mMut;
std::vector<VirtualProgram> mPrograms;
};
/**
* Get virtual radio space for a given radio class.
*
* As a space, each virtual radio always exists. For example, DAB frequencies
* exists in US, but contains no programs.
*
* The lifetime of the virtual radio space is virtually infinite, but for the
* needs of default implementation, it's bound with the lifetime of default
* implementation process.
*
* Internally, it's a static object, so trying to access the reference during
* default implementation library unloading may result in segmentation fault.
* It's unlikely for testing purposes.
*
* @param classId A class of radio technology.
* @return A reference to virtual radio space for a given technology.
*/
VirtualRadio& getRadio(V1_0::Class classId);
VirtualRadio& getAmRadio();
VirtualRadio& getFmRadio();
VirtualRadio& getSatRadio();
VirtualRadio& getDigitalRadio();
} // namespace implementation
} // namespace V1_1
} // namespace broadcastradio
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
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