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https://github.com/wpilibsuite/allwpilib
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48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
// Copyright (c) FIRST and other WPILib contributors.
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// Open Source Software; you can modify and/or share it under the terms of
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// the WPILib BSD license file in the root directory of this project.
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#pragma once
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#include <atomic>
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#include <string>
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#include <wpi/mutex.h>
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#include <wpi/sendable/Sendable.h>
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#include <wpi/sendable/SendableHelper.h>
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namespace frc {
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/**
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* This class is a non-template base class for SendableChooser.
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*
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* It contains static, non-templated variables to avoid their duplication in the
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* template class.
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*/
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class SendableChooserBase : public wpi::Sendable,
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public wpi::SendableHelper<SendableChooserBase> {
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public:
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SendableChooserBase();
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~SendableChooserBase() override = default;
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SendableChooserBase(SendableChooserBase&& oth);
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SendableChooserBase& operator=(SendableChooserBase&& oth);
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protected:
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static constexpr const char* kDefault = "default";
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static constexpr const char* kOptions = "options";
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static constexpr const char* kSelected = "selected";
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static constexpr const char* kActive = "active";
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static constexpr const char* kInstance = ".instance";
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std::string m_defaultChoice;
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std::string m_selected;
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bool m_haveSelected = false;
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mutable wpi::mutex m_mutex;
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int m_instance;
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std::string m_previousVal;
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static std::atomic_int s_instances;
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};
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} // namespace frc
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