shadPS4/src/core/file_sys/fs.cpp

119 lines
3.6 KiB
C++

// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include "common/string_util.h"
#include "core/file_sys/fs.h"
namespace Core::FileSys {
constexpr int RESERVED_HANDLES = 3; // First 3 handles are stdin,stdout,stderr
void MntPoints::Mount(const std::filesystem::path& host_folder, const std::string& guest_folder) {
std::scoped_lock lock{m_mutex};
MntPair pair;
pair.host_path = host_folder.string();
std::replace(pair.host_path.begin(), pair.host_path.end(), '\\', '/');
pair.guest_path = guest_folder;
m_mnt_pairs.push_back(pair);
}
void MntPoints::Unmount(const std::filesystem::path& host_folder, const std::string& guest_folder) {
auto it = std::remove_if(m_mnt_pairs.begin(), m_mnt_pairs.end(),
[&](const MntPair& pair) { return pair.guest_path == guest_folder; });
m_mnt_pairs.erase(it, m_mnt_pairs.end());
}
void MntPoints::UnmountAll() {
std::scoped_lock lock{m_mutex};
m_mnt_pairs.clear();
}
std::string MntPoints::GetHostDirectory(const std::string& guest_directory) {
std::scoped_lock lock{m_mutex};
for (auto& pair : m_mnt_pairs) {
// horrible code but it works :D
int find = guest_directory.find(pair.guest_path);
if (find == 0) {
std::string npath =
guest_directory.substr(pair.guest_path.size(), guest_directory.size() - 1);
std::replace(pair.host_path.begin(), pair.host_path.end(), '\\', '/');
return pair.host_path + npath;
}
}
return "";
}
std::string MntPoints::GetHostFile(const std::string& guest_file) {
std::scoped_lock lock{m_mutex};
for (auto& pair : m_mnt_pairs) {
// horrible code but it works :D
int find = guest_file.find(pair.guest_path);
if (find != 0) {
continue;
}
std::string npath = guest_file.substr(pair.guest_path.size(), guest_file.size() - 1);
const auto host_path = pair.host_path + npath;
#ifndef _WIN64
const std::filesystem::path path{host_path};
if (!std::filesystem::exists(path)) {
const auto filename = Common::ToLower(path.filename());
for (const auto& file : std::filesystem::directory_iterator(path.parent_path())) {
const auto exist_filename = Common::ToLower(file.path().filename());
if (filename == exist_filename) {
return file.path();
}
}
}
#endif
return host_path;
}
return "";
}
int HandleTable::CreateHandle() {
std::scoped_lock lock{m_mutex};
auto* file = new File{};
file->is_directory = false;
file->is_opened = false;
int existingFilesNum = m_files.size();
for (int index = 0; index < existingFilesNum; index++) {
if (m_files.at(index) == nullptr) {
m_files[index] = file;
return index + RESERVED_HANDLES;
}
}
m_files.push_back(file);
return m_files.size() + RESERVED_HANDLES - 1;
}
void HandleTable::DeleteHandle(int d) {
std::scoped_lock lock{m_mutex};
delete m_files.at(d - RESERVED_HANDLES);
m_files[d - RESERVED_HANDLES] = nullptr;
}
File* HandleTable::GetFile(int d) {
std::scoped_lock lock{m_mutex};
return m_files.at(d - RESERVED_HANDLES);
}
File* HandleTable::getFile(const std::string& host_name) {
std::scoped_lock lock{m_mutex};
for (auto* file : m_files) {
if (file != nullptr && file->m_host_name == host_name) {
return file;
}
}
return nullptr;
}
} // namespace Core::FileSys