Merge pull request #76 from georgemoralis/threads_and_openorbis_stuff_part1

initial fs implementation (mounting /app0/)
This commit is contained in:
georgemoralis 2023-11-19 10:23:23 +02:00 committed by GitHub
commit a298ddb057
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 153 additions and 1 deletions

View File

@ -59,6 +59,8 @@ set(SYSTEMSERVICE_SOURCES src/core/hle/libraries/libsystemservice/system_service
set(FILESYSTEM_SOURCES src/core/hle/libraries/libkernel/file_system.cpp
src/core/hle/libraries/libkernel/file_system.h
src/core/file_sys/fs.cpp
src/core/file_sys/fs.h
)
set(HOST_SOURCES src/Emulator/Host/controller.cpp

91
src/core/file_sys/fs.cpp Normal file
View File

@ -0,0 +1,91 @@
#include "fs.h"
#include <algorithm>
namespace Core::FileSys {
constexpr int RESERVED_HANDLES = 3; // First 3 handles are stdin,stdout,stderr
void MntPoints::mount(const std::string& host_folder, const std::string& guest_folder) {
std::scoped_lock lock{m_mutex};
MntPair pair;
pair.host_path = host_folder;
pair.guest_path = guest_folder;
m_mnt_pairs.push_back(pair);
}
void MntPoints::unmount(const std::string& path) {} // TODO!
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) {
if (pair.guest_path.starts_with(guest_directory)) {
return pair.host_path + guest_directory;
}
}
// hack for relative path , get app0 and assuming it goes from there
for (auto& pair : m_mnt_pairs) {
if (pair.guest_path.starts_with("/app0")) {
std::replace(pair.host_path.begin(), pair.host_path.end(), '\\', '/');
return pair.host_path + guest_directory;
}
}
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) {
std::string npath = guest_file.substr(pair.guest_path.size(), guest_file.size()-1);
std::replace(pair.host_path.begin(), pair.host_path.end(), '\\', '/');
return pair.host_path + npath;
}
}
return "";
}
int HandleTable::createHandle() {
std::scoped_lock lock{m_mutex};
auto* file = new File{};
file->isDirectory = false;
file->isOpened = 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

54
src/core/file_sys/fs.h Normal file
View File

@ -0,0 +1,54 @@
#pragma once
#include <mutex>
#include <string>
#include <vector>
#include "common/fs_file.h"
namespace Core::FileSys {
class MntPoints {
public:
struct MntPair {
std::string host_path;
std::string guest_path; // e.g /app0/
};
MntPoints() = default;
virtual ~MntPoints() = default;
void mount(const std::string& host_folder, const std::string& guest_folder);
void unmount(const std::string& path);
void unmountAll();
std::string getHostDirectory(const std::string& guest_directory);
std::string MntPoints::getHostFile(const std::string& guest_file);
private:
std::vector<MntPair> m_mnt_pairs;
std::mutex m_mutex;
};
struct File {
std::atomic_bool isOpened;
std::atomic_bool isDirectory;
std::string m_host_name;
std::string m_guest_name;
Common::FS::File f;
//std::vector<Common::FS::DirEntry> dirents;
u32 dirents_index;
std::mutex m_mutex;
};
class HandleTable {
public:
HandleTable() {}
virtual ~HandleTable() {}
int createHandle();
void deleteHandle(int d);
File* getFile(int d);
File* getFile(const std::string& host_name);
private:
std::vector<File*> m_files;
std::mutex m_mutex;
};
} // namespace Core::FileSys

View File

@ -17,6 +17,7 @@
#include "emuTimer.h"
#include "emulator.h"
#include <core/hle/libraries/libkernel/thread_management.h>
#include "core/file_sys/fs.h"
int main(int argc, char* argv[]) {
if (argc == 1) {
@ -35,6 +36,10 @@ int main(int argc, char* argv[]) {
// Argument 1 is the path of self file to boot
const char* const path = argv[1];
auto* mnt = Common::Singleton<Core::FileSys::MntPoints>::Instance();
std::filesystem::path p = std::string(path);
mnt->mount(p.parent_path().string(), "/app0");
auto linker = Common::Singleton<Core::Linker>::Instance();
Core::Libraries::InitHLELibs(&linker->getHLESymbols());
linker->LoadModule(path);