78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
|
// Copyright 2018 yuzu emulator team
|
||
|
|
// Licensed under GPLv2 or any later version
|
||
|
|
// Refer to the license.txt file included.
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <memory>
|
||
|
|
#include <string_view>
|
||
|
|
|
||
|
|
#include "core/file_sys/vfs.h"
|
||
|
|
|
||
|
|
namespace FileSys {
|
||
|
|
|
||
|
|
template <u8 value>
|
||
|
|
class StaticVfsFile : public VfsFile {
|
||
|
|
public:
|
||
|
|
explicit StaticVfsFile(size_t size = 0, std::string name = "", VirtualDir parent = nullptr)
|
||
|
|
: size(size), name(name), parent(parent) {}
|
||
|
|
|
||
|
|
std::string GetName() const override {
|
||
|
|
return name;
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t GetSize() const override {
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Resize(size_t new_size) override {
|
||
|
|
size = new_size;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::shared_ptr<VfsDirectory> GetContainingDirectory() const override {
|
||
|
|
return parent;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool IsWritable() const override {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool IsReadable() const override {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t Read(u8* data, size_t length, size_t offset) const override {
|
||
|
|
const auto read = std::min(length, size - offset);
|
||
|
|
std::fill(data, data + read, value);
|
||
|
|
return read;
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t Write(const u8* data, size_t length, size_t offset) override {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
boost::optional<u8> ReadByte(size_t offset) const override {
|
||
|
|
if (offset < size)
|
||
|
|
return value;
|
||
|
|
return boost::none;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::vector<u8> ReadBytes(size_t length, size_t offset) const override {
|
||
|
|
const auto read = std::min(length, size - offset);
|
||
|
|
return std::vector<u8>(read, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Rename(std::string_view new_name) override {
|
||
|
|
name = new_name;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
size_t size;
|
||
|
|
std::string name;
|
||
|
|
VirtualDir parent;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace FileSys
|