80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
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#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
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#include "VirtualProgram.h"
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#include <mutex>
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#include <vector>
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namespace android {
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namespace hardware {
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namespace broadcastradio {
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namespace V1_1 {
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namespace implementation {
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/**
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* A radio frequency space mock.
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*
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* This represents all broadcast waves in the air for a given radio technology,
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* not a captured station list in the radio tuner memory.
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*
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* It's meant to abstract out radio content from default tuner implementation.
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*/
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class VirtualRadio {
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public:
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VirtualRadio(const std::vector<VirtualProgram> initialList);
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std::vector<VirtualProgram> getProgramList();
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bool getProgram(const V1_1::ProgramSelector& selector, VirtualProgram& program);
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private:
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std::mutex mMut;
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std::vector<VirtualProgram> mPrograms;
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};
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/**
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* Get virtual radio space for a given radio class.
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*
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* As a space, each virtual radio always exists. For example, DAB frequencies
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* exists in US, but contains no programs.
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*
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* The lifetime of the virtual radio space is virtually infinite, but for the
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* needs of default implementation, it's bound with the lifetime of default
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* implementation process.
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*
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* Internally, it's a static object, so trying to access the reference during
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* default implementation library unloading may result in segmentation fault.
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* It's unlikely for testing purposes.
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*
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* @param classId A class of radio technology.
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* @return A reference to virtual radio space for a given technology.
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*/
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VirtualRadio& getRadio(V1_0::Class classId);
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VirtualRadio& getAmRadio();
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VirtualRadio& getFmRadio();
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VirtualRadio& getSatRadio();
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VirtualRadio& getDigitalRadio();
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} // namespace implementation
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} // namespace V1_1
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} // namespace broadcastradio
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
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