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sys_fs: Fixed sys_fs_unlink()'s failing to delete files in dev_usbXXX

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sys_fs: Fixed get_mp() up for dev_usbXXX
This commit is contained in:
brian218 2023-12-27 11:59:41 +08:00 committed by Megamouse
parent 61e130e68c
commit 862295d9f3
2 changed files with 19 additions and 20 deletions
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37
rpcs3/Emu/Cell/lv2/sys_fs.cpp
View File

@ -160,7 +160,7 @@ bool lv2_fs_mount_info_map::remove(std::string_view path)
return false;
}
const lv2_fs_mount_info& lv2_fs_mount_info_map::lookup(std::string_view path, bool no_cell_fs_path) const
const lv2_fs_mount_info& lv2_fs_mount_info_map::lookup(std::string_view path, bool no_cell_fs_path, std::string* mount_path) const
{
if (path.starts_with("/"sv))
{
@ -177,7 +177,9 @@ const lv2_fs_mount_info& lv2_fs_mount_info_map::lookup(std::string_view path, bo
if (iterator->second == &g_mp_sys_dev_root && parent_level > 1)
break;
if (no_cell_fs_path && iterator->second.device.starts_with(cell_fs_path))
return lookup(iterator->second.device.substr(cell_fs_path.size()), no_cell_fs_path); // Recursively look up the parent mount info
return lookup(iterator->second.device.substr(cell_fs_path.size()), no_cell_fs_path, mount_path); // Recursively look up the parent mount info
if (mount_path)
*mount_path = iterator->first;
return iterator->second;
}
} while (parent_dir.length() > 1); // Exit the loop when parent_dir == "/" or empty
@ -295,8 +297,6 @@ lv2_fs_mount_point* lv2_fs_object::get_mp(std::string_view filename, std::string
{
for (auto mp = &g_mp_sys_dev_root; mp; mp = mp->next)
{
const auto pos = mp->root.find_first_not_of('/');
const auto mp_root = pos != umax ? mp->root.substr(pos) : mp->root;
const auto& device_alias_check = !is_path && (
(mp == &g_mp_sys_dev_hdd0 && mp_name == "CELL_FS_IOS:PATA0_HDD_DRIVE"sv) ||
(mp == &g_mp_sys_dev_hdd1 && mp_name == "CELL_FS_IOS:PATA1_HDD_DRIVE"sv) ||
@ -304,20 +304,17 @@ lv2_fs_mount_point* lv2_fs_object::get_mp(std::string_view filename, std::string
if (mp == &g_mp_sys_dev_usb)
{
for (int i = 0; i < 8; i++)
if (mp_name.starts_with(is_path ? mp->root : mp->device))
{
if (fmt::format("%s%03d", is_path ? mp_root : mp->device, i) == mp_name)
{
if (!is_path)
mp_name = fmt::format("%s%03d", mp_root, i);
return mp;
}
if (!is_path)
mp_name = fmt::format("%s%s", mp->root, mp_name.substr(mp->device.size()));
return mp;
}
}
else if ((is_path ? mp_root : mp->device) == mp_name || device_alias_check)
else if ((is_path ? mp->root : mp->device) == mp_name || device_alias_check)
{
if (!is_path)
mp_name = mp_root;
mp_name = mp->root;
return mp;
}
}
@ -335,7 +332,7 @@ lv2_fs_mount_point* lv2_fs_object::get_mp(std::string_view filename, std::string
else if (result == &g_mp_sys_dev_hdd1)
*vfs_path = g_cfg_vfs.get(g_cfg_vfs.dev_hdd1, rpcs3::utils::get_emu_dir());
else if (result == &g_mp_sys_dev_usb)
*vfs_path = g_cfg_vfs.get_device(g_cfg_vfs.dev_usb, fmt::format("/%s", mp_name), rpcs3::utils::get_emu_dir()).path;
*vfs_path = g_cfg_vfs.get_device(g_cfg_vfs.dev_usb, mp_name, rpcs3::utils::get_emu_dir()).path;
else if (result == &g_mp_sys_dev_bdvd)
*vfs_path = g_cfg_vfs.get(g_cfg_vfs.dev_bdvd, rpcs3::utils::get_emu_dir());
else if (result == &g_mp_sys_dev_dvd)
@ -354,7 +351,7 @@ lv2_fs_mount_point* lv2_fs_object::get_mp(std::string_view filename, std::string
*vfs_path = {};
if (is_path && !is_cell_fs_path && !vfs_path->empty())
vfs_path->append(filename.substr(mp_name.size() + 1)); // substr: remove leading "/mp_name"
vfs_path->append(filename.substr(mp_name.size()));
}
return result;
@ -1481,7 +1478,9 @@ error_code sys_fs_stat(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<CellFsStat>
if (local_path.empty())
{
return {CELL_ENOTMOUNTED, path};
// This syscall can be used by games and VSH to test the presence of dev_usb000 ~ dev_usb127
// Thus there is no need to fuss about CELL_ENOTMOUNTED in this case
return {sys_fs.warning, CELL_ENOTMOUNTED, path};
}
std::unique_lock lock(mp->mutex);
@ -1796,7 +1795,8 @@ error_code sys_fs_unlink(ppu_thread& ppu, vm::cptr<char> path)
const std::string local_path = vfs::get(vpath);
const auto& mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
std::string mount_path = fs::get_parent_dir(vpath); // Use its parent directory as fallback
const auto& mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath, true, &mount_path);
if (mp == &g_mp_sys_dev_root)
{
@ -1820,8 +1820,7 @@ error_code sys_fs_unlink(ppu_thread& ppu, vm::cptr<char> path)
std::lock_guard lock(mp->mutex);
// Provide default mp root or use parent directory if not available (such as host_root)
if (!vfs::host::unlink(local_path, vfs::get(mp->root.empty() ? vpath.substr(0, vpath.find_last_of('/')) : mp->root)))
if (!vfs::host::unlink(local_path, vfs::get(mount_path)))
{
switch (auto error = fs::g_tls_error)
{

2
rpcs3/Emu/Cell/lv2/sys_fs.h
View File

@ -213,7 +213,7 @@ public:
return map.try_emplace(std::forward<Args>(args)...).second;
}
bool remove(std::string_view path);
const lv2_fs_mount_info& lookup(std::string_view path, bool no_cell_fs_path = false) const;
const lv2_fs_mount_info& lookup(std::string_view path, bool no_cell_fs_path = false, std::string* mount_path = nullptr) const;
u64 get_all(CellFsMountInfo* info = nullptr, u64 len = 0) const;
static bool vfs_unmount(std::string_view vpath, bool remove_from_map = true);