mirror of
https://github.com/wpilibsuite/allwpilib
synced 2026-06-19 00:41:43 +00:00
d82635bbe1
Subsections are alphabetized according to lexographic ordering. Also, HAL includes were moved from headers to source files where possible. This change may cause user code which uses HAL functionality and does not include the relevant HAL header (since it may have been provided by another WPILib header) to fail to compile.
73 lines
2.8 KiB
C++
73 lines
2.8 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) FIRST 2011-2016. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#pragma once
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#include <map>
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#include <string>
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#include <vector>
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#include "ErrorBase.h"
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#include "HAL/cpp/Semaphore.h"
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#include "Task.h"
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#include "networktables/NetworkTable.h"
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#include "tables/ITableListener.h"
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/**
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* The preferences class provides a relatively simple way to save important
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* values to the RoboRIO to access the next time the RoboRIO is booted.
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*
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* <p>This class loads and saves from a file inside the RoboRIO. The user can
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* not access the file directly, but may modify values at specific fields which
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* will then be automatically periodically saved to the file by the NetworkTable
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* server.</p>
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*
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* <p>This class is thread safe.</p>
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*
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* <p>This will also interact with {@link NetworkTable} by creating a table
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* called "Preferences" with all the key-value pairs.</p>
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*/
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class Preferences : public ErrorBase {
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public:
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static Preferences* GetInstance();
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std::vector<std::string> GetKeys();
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std::string GetString(llvm::StringRef key, llvm::StringRef defaultValue = "");
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int GetInt(llvm::StringRef key, int defaultValue = 0);
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double GetDouble(llvm::StringRef key, double defaultValue = 0.0);
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float GetFloat(llvm::StringRef key, float defaultValue = 0.0);
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bool GetBoolean(llvm::StringRef key, bool defaultValue = false);
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int64_t GetLong(llvm::StringRef key, int64_t defaultValue = 0);
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void PutString(llvm::StringRef key, llvm::StringRef value);
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void PutInt(llvm::StringRef key, int value);
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void PutDouble(llvm::StringRef key, double value);
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void PutFloat(llvm::StringRef key, float value);
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void PutBoolean(llvm::StringRef key, bool value);
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void PutLong(llvm::StringRef key, int64_t value);
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DEPRECATED(
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"Saving is now automatically performed by the NetworkTables server.")
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void Save();
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bool ContainsKey(llvm::StringRef key);
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void Remove(llvm::StringRef key);
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protected:
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Preferences();
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virtual ~Preferences() = default;
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private:
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std::shared_ptr<ITable> m_table;
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class Listener : public ITableListener {
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public:
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void ValueChanged(ITable* source, llvm::StringRef key,
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std::shared_ptr<nt::Value> value, bool isNew) override;
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void ValueChangedEx(ITable* source, llvm::StringRef key,
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std::shared_ptr<nt::Value> value,
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unsigned int flags) override;
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};
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Listener m_listener;
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};
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