dolphin/Source/Core/Common/SysConf.h
Léo Lam d86f020e81 Rewrite SysConf handling
This rewrites the SysConf code for several reasons:

* Modernising the SysConf class. The naming was entirely cleaned up.
  constexpr for constants.

* Exposing less stuff in the header.

* Probably less efficient parsing and writing logic, but much simpler
  to understand and use in my opinion. No more hardcoded offsets.
  No more duplicated code for the initial SYSCONF generation.

* More flexibility. It is now possible to add and remove entries,
  since we rebuild the file. This allows us to stop spamming
  "section not found" panic alerts; we can now use and insert
  default entries.
2017-06-18 16:17:05 +02:00

94 lines
2.2 KiB
C++

// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
// Utilities to parse and modify a Wii SYSCONF file and its sections.
#pragma once
#include <cstring>
#include <string>
#include <vector>
#include "Common/Assert.h"
#include "Common/CommonTypes.h"
#include "Common/NandPaths.h"
class SysConf final
{
public:
SysConf(Common::FromWhichRoot root_type);
~SysConf();
void Clear();
void Load();
bool Save() const;
struct Entry
{
enum Type : u8
{
BigArray = 1,
SmallArray = 2,
Byte = 3,
Short = 4,
Long = 5,
LongLong = 6,
// Should really be named Bool, but this conflicts with some random macro. :/
ByteBool = 7,
};
Entry(Type type_, const std::string& name_);
Entry(Type type_, const std::string& name_, const std::vector<u8>& bytes_);
Entry(Type type_, const std::string& name_, std::vector<u8>&& bytes_);
// Intended for use with the non array types.
template <typename T>
T GetData(T default_value) const
{
if (bytes.size() != sizeof(T))
return default_value;
T value;
std::memcpy(&value, bytes.data(), bytes.size());
return value;
}
template <typename T>
void SetData(T value)
{
_assert_(sizeof(value) == bytes.size());
std::memcpy(bytes.data(), &value, bytes.size());
}
Type type;
std::string name;
std::vector<u8> bytes;
};
void AddEntry(Entry&& entry);
Entry* GetEntry(const std::string& key);
const Entry* GetEntry(const std::string& key) const;
Entry* GetOrAddEntry(const std::string& key, Entry::Type type);
void RemoveEntry(const std::string& key);
// Intended for use with the non array types.
template <typename T>
T GetData(const std::string& key, T default_value) const
{
const Entry* entry = GetEntry(key);
return entry ? entry->GetData(default_value) : default_value;
}
template <typename T>
void SetData(const std::string& key, Entry::Type type, T value)
{
GetOrAddEntry(key, type)->SetData(value);
}
private:
void ApplySettingsFromMovie();
void InsertDefaultEntries();
bool LoadFromFile(const std::string& file_name);
std::string m_file_name;
std::vector<Entry> m_entries;
};