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/*---------------------------------------------------------*\
| SettingsManager.cpp |
| |
| OpenRGB Settings Manager maintains a list of application|
| settings in JSON format. Other components may register |
| settings with this class and store/load values. |
| |
| Adam Honse (CalcProgrammer1) 04 Nov 2020 |
| |
| This file is part of the OpenRGB project |
| SPDX-License-Identifier: GPL-2.0-only |
\*---------------------------------------------------------*/
#include <fstream>
#include <iostream>
#include "SettingsManager.h"
#include "LogManager.h"
SettingsManager::SettingsManager()
{
config_found = false;
}
SettingsManager::~SettingsManager()
{
}
json SettingsManager::GetSettings(std::string settings_key)
{
/*---------------------------------------------------------*\
| Check to see if the key exists in the settings store and |
| return the settings associated with the key if it exists |
| We lock the mutex to protect the value from changing |
| while data is being read and copy before unlocking |
\*---------------------------------------------------------*/
json result;
mutex.lock();
if(settings_data.contains(settings_key))
{
result = settings_data[settings_key];
}
mutex.unlock();
return result;
}
void SettingsManager::SetSettings(std::string settings_key, json new_settings)
{
mutex.lock();
settings_data[settings_key] = new_settings;
mutex.unlock();
}
void SettingsManager::LoadSettings(const filesystem::path& filename)
{
/*---------------------------------------------------------*\
| Clear any stored settings before loading |
\*---------------------------------------------------------*/
mutex.lock();
settings_data.clear();
/*---------------------------------------------------------*\
| Store settings filename, so we can save to it later |
\*---------------------------------------------------------*/
settings_filename = filename;
/*---------------------------------------------------------*\
| Open input file in binary mode |
\*---------------------------------------------------------*/
config_found = filesystem::exists(filename);
if(config_found)
{
std::ifstream settings_file(settings_filename, std::ios::in | std::ios::binary);
/*---------------------------------------------------------*\
| Read settings into JSON store |
\*---------------------------------------------------------*/
if(settings_file)
{
try
{
settings_file >> settings_data;
}
catch(const std::exception& e)
{
/*-------------------------------------------------*\
| If an exception was caught, that means the JSON |
| parsing failed. Clear out any data in the store |
| as it is corrupt. |
| We could attempt a reload for backup location |
\*-------------------------------------------------*/
LOG_ERROR("[SettingsManager] JSON parsing failed: %s", e.what());
settings_data.clear();
}
}
settings_file.close();
}
mutex.unlock();
}
void SettingsManager::SaveSettings()
{
mutex.lock();
std::ofstream settings_file(settings_filename, std::ios::out | std::ios::binary);
if(settings_file)
{
try
{
settings_file << settings_data.dump(4);
}
catch(const std::exception& e)
{
LOG_ERROR("[SettingsManager] Cannot write to file: %s", e.what());
}
settings_file.close();
}
mutex.unlock();
}
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