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Code Issues Releases Wiki Activity

sys_fs: Implemented get_normalized_path()

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This commit is contained in:
brian218 2023-06-25 10:09:08 +08:00 committed by Megamouse
parent 09f83e48ff
commit cf4ae38699
3 changed files with 38 additions and 21 deletions
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1
Utilities/File.cpp
View File

@ -3,7 +3,6 @@
#include "StrFmt.h"
#include "Crypto/sha1.h"
#include <filesystem>
#include <unordered_map>
#include <algorithm>
#include <cstring>

50
rpcs3/Emu/Cell/lv2/sys_fs.cpp
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@ -14,6 +14,7 @@
#include "Emu/system_utils.hpp"
#include "Emu/Cell/lv2/sys_process.h"
#include <filesystem>
#include <span>
LOG_CHANNEL(sys_fs);
@ -163,13 +164,14 @@ const lv2_fs_mount_info& lv2_fs_mount_info_map::lookup(std::string_view path, bo
if (path.starts_with("/"sv))
{
constexpr std::string_view cell_fs_path = "CELL_FS_PATH:"sv;
std::string path_dir;
const std::string normalized_path = lv2_fs_object::get_normalized_path(path);
std::string_view parent_dir;
u32 parent_level = 0;
do
{
path_dir = fs::get_parent_dir(path, parent_level++);
if (const auto iterator = map.find(path_dir); iterator != map.end())
parent_dir = fs::get_parent_dir_view(normalized_path, parent_level++);
if (const auto iterator = map.find(parent_dir); iterator != map.end())
{
if (iterator->second == &g_mp_sys_dev_root && parent_level > 1)
break;
@ -177,7 +179,7 @@ const lv2_fs_mount_info& lv2_fs_mount_info_map::lookup(std::string_view path, bo
return lookup(iterator->second.device.substr(cell_fs_path.size()), no_cell_fs_path); // Recursively look up the parent mount info
return iterator->second;
}
} while (path_dir.length() > 1); // Exit the loop when path_dir == "/" or empty
} while (parent_dir.length() > 1); // Exit the loop when parent_dir == "/" or empty
}
return g_mi_sys_not_found;
@ -247,22 +249,34 @@ bool lv2_fs_mount_info_map::vfs_unmount(std::string_view vpath, bool remove_from
return result;
}
std::string lv2_fs_object::get_device_root(std::string_view filename)
std::string lv2_fs_object::get_normalized_path(std::string_view path)
{
if (filename.starts_with("/"sv))
{
std::string path_dir;
u32 parent_level = 0;
std::string normalized_path = std::filesystem::u8path(path).lexically_normal().string();
do
#ifdef _WIN32
std::replace(normalized_path.begin(), normalized_path.end(), '\\', '/');
#endif
if (normalized_path.ends_with('/'))
normalized_path.pop_back();
return normalized_path.empty() ? "/" : normalized_path;
}
std::string_view lv2_fs_object::get_device_root(std::string_view path)
{
if (const auto first = path.find_first_not_of("/"sv); first != umax)
{
path_dir = fs::get_parent_dir(filename, parent_level++);
if (path_dir.find_last_of("/") == 0)
return path_dir;
} while (path_dir.length() > 1); // Exit the loop when path_dir == "/" or empty
if (const auto pos = path.substr(first).find_first_of("/"sv); pos != umax)
path = path.substr(0, first + pos);
path.remove_prefix(std::max<usz>(0, first - 1)); // Remove duplicate leading '/' while keeping only one
}
else
{
path = path.substr(0, 1);
}
return std::string(filename);
return path;
}
lv2_fs_mount_point* lv2_fs_object::get_mp(std::string_view filename, std::string* vfs_path)
@ -273,8 +287,8 @@ lv2_fs_mount_point* lv2_fs_object::get_mp(std::string_view filename, std::string
if (is_cell_fs_path)
filename.remove_prefix(cell_fs_path.size());
const bool is_path = filename.starts_with('/');
std::string mp_name = get_device_root(filename);
const bool is_path = filename.starts_with("/"sv);
std::string mp_name = std::string(is_path ? get_device_root(filename) : filename);
const auto check_mp = [&]()
{
@ -3115,7 +3129,7 @@ error_code sys_fs_mount(ppu_thread& ppu, vm::cptr<char> dev_name, vm::cptr<char>
return {path_error, path_sv};
}
const std::string vpath = fs::get_parent_dir(path_sv, 0); // Just normalize the path
const std::string vpath = lv2_fs_object::get_normalized_path(path_sv);
std::string vfs_path;
const auto mp = lv2_fs_object::get_mp(device_name, &vfs_path);

6
rpcs3/Emu/Cell/lv2/sys_fs.h
View File

@ -245,7 +245,11 @@ public:
lv2_fs_object& operator=(const lv2_fs_object&) = delete;
static std::string get_device_root(std::string_view filename);
// Normalize a virtual path
static std::string get_normalized_path(std::string_view path);
// Get the device's root path (e.g. "/dev_hdd0") from a given path
static std::string_view get_device_root(std::string_view path);
// Filename can be either a path starting with '/' or a CELL_FS device name
// This should be used only when handling devices that are not mounted