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kernel: Cleanup filesystem code

This commit is contained in:
IndecisiveTurtle 2024-06-26 17:54:36 +03:00
parent 3532fd1c9c
commit a2394109ee
1 changed files with 35 additions and 76 deletions
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109
src/core/libraries/kernel/file_system.cpp
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@ -4,6 +4,7 @@
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/singleton.h"
#include "common/scope_exit.h"
#include "core/file_sys/fs.h"
#include "core/libraries/error_codes.h"
#include "core/libraries/kernel/file_system.h"
@ -12,26 +13,16 @@
namespace Libraries::Kernel {
std::vector<Core::FileSys::DirEntry> GetDirectoryEntries(const std::string& path) {
std::string curpath = path;
if (!curpath.ends_with("/")) {
curpath = std::string(curpath + "/");
}
std::vector<Core::FileSys::DirEntry> files;
for (const auto& entry : std::filesystem::directory_iterator(curpath)) {
Core::FileSys::DirEntry e = {};
if (std::filesystem::is_directory(entry.path().string())) {
e.name = entry.path().filename().string();
e.isFile = false;
} else {
e.name = entry.path().filename().string();
e.isFile = true;
}
files.push_back(e);
for (const auto& entry : std::filesystem::directory_iterator(path)) {
auto& dir_entry = files.emplace_back();
dir_entry.name = entry.path().filename().string();
dir_entry.isFile = !std::filesystem::is_directory(entry.path().string());
}
return files;
}
int PS4_SYSV_ABI sceKernelOpen(const char* path, int flags, u16 mode) {
LOG_INFO(Kernel_Fs, "path = {} flags = {:#x} mode = {}", path, flags, mode);
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
@ -136,9 +127,6 @@ int PS4_SYSV_ABI posix_close(int d) {
}
size_t PS4_SYSV_ABI sceKernelWrite(int d, void* buf, size_t nbytes) {
if (buf == nullptr) {
return SCE_KERNEL_ERROR_EFAULT;
}
if (d <= 2) { // stdin,stdout,stderr
char* str = strdup((const char*)buf);
if (str[nbytes - 1] == '\n')
@ -152,20 +140,19 @@ size_t PS4_SYSV_ABI sceKernelWrite(int d, void* buf, size_t nbytes) {
if (file == nullptr) {
return SCE_KERNEL_ERROR_EBADF;
}
file->m_mutex.lock();
u32 bytes_write = file->f.WriteRaw<u8>(buf, static_cast<u32>(nbytes));
file->m_mutex.unlock();
return bytes_write;
std::scoped_lock lk{file->m_mutex};
return file->f.WriteRaw<u8>(buf, nbytes);
}
size_t PS4_SYSV_ABI _readv(int d, const SceKernelIovec* iov, int iovcnt) {
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
size_t total_read = 0;
file->m_mutex.lock();
std::scoped_lock lk{file->m_mutex};
for (int i = 0; i < iovcnt; i++) {
total_read += file->f.ReadRaw<u8>(iov[i].iov_base, iov[i].iov_len);
}
file->m_mutex.unlock();
return total_read;
}
@ -173,24 +160,18 @@ s64 PS4_SYSV_ABI sceKernelLseek(int d, s64 offset, int whence) {
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
file->m_mutex.lock();
Common::FS::SeekOrigin origin;
Common::FS::SeekOrigin origin{};
if (whence == 0) {
origin = Common::FS::SeekOrigin::SetOrigin;
}
if (whence == 1) {
} else if (whence == 1) {
origin = Common::FS::SeekOrigin::CurrentPosition;
}
if (whence == 2) {
} else if (whence == 2) {
origin = Common::FS::SeekOrigin::End;
}
std::scoped_lock lk{file->m_mutex};
file->f.Seek(offset, origin);
auto pos = static_cast<int64_t>(file->f.Tell());
file->m_mutex.unlock();
return pos;
return file->f.Tell();
}
s64 PS4_SYSV_ABI posix_lseek(int d, s64 offset, int whence) {
@ -198,19 +179,14 @@ s64 PS4_SYSV_ABI posix_lseek(int d, s64 offset, int whence) {
}
s64 PS4_SYSV_ABI sceKernelRead(int d, void* buf, size_t nbytes) {
if (buf == nullptr) {
return SCE_KERNEL_ERROR_EFAULT;
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
if (file == nullptr) {
return SCE_KERNEL_ERROR_EBADF;
}
file->m_mutex.lock();
u32 bytes_read = file->f.ReadRaw<u8>(buf, static_cast<u32>(nbytes));
file->m_mutex.unlock();
return bytes_read;
std::scoped_lock lk{file->m_mutex};
return file->f.ReadRaw<u8>(buf, nbytes);
}
int PS4_SYSV_ABI posix_read(int d, void* buf, size_t nbytes) {
@ -245,10 +221,10 @@ int PS4_SYSV_ABI posix_mkdir(const char* path, u16 mode) {
int PS4_SYSV_ABI sceKernelStat(const char* path, OrbisKernelStat* sb) {
LOG_INFO(Kernel_Fs, "(PARTIAL) path = {}", path);
auto* mnt = Common::Singleton<Core::FileSys::MntPoints>::Instance();
std::string path_name = mnt->GetHostFile(path);
memset(sb, 0, sizeof(OrbisKernelStat));
bool is_dir = std::filesystem::is_directory(path_name);
bool is_file = std::filesystem::is_regular_file(path_name);
const auto& path_name = mnt->GetHostFile(path);
std::memset(sb, 0, sizeof(OrbisKernelStat));
const bool is_dir = std::filesystem::is_directory(path_name);
const bool is_file = std::filesystem::is_regular_file(path_name);
if (!is_dir && !is_file) {
return ORBIS_KERNEL_ERROR_ENOENT;
}
@ -290,35 +266,28 @@ s64 PS4_SYSV_ABI sceKernelPread(int d, void* buf, size_t nbytes, s64 offset) {
if (d < 3) {
return ORBIS_KERNEL_ERROR_EPERM;
}
if (buf == nullptr) {
return ORBIS_KERNEL_ERROR_EFAULT;
}
if (offset < 0) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
if (file == nullptr) {
return ORBIS_KERNEL_ERROR_EBADF;
}
file->m_mutex.lock();
std::scoped_lock lk{file->m_mutex};
if (file->f.Tell() != offset) {
file->f.Seek(offset);
}
u32 bytes_read = file->f.ReadRaw<u8>(buf, static_cast<u32>(nbytes));
file->m_mutex.unlock();
return bytes_read;
return file->f.ReadRaw<u8>(buf, nbytes);
}
int PS4_SYSV_ABI sceKernelFStat(int fd, OrbisKernelStat* sb) {
LOG_INFO(Kernel_Fs, "(PARTIAL) fd = {}", fd);
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(fd);
memset(sb, 0, sizeof(OrbisKernelStat));
std::memset(sb, 0, sizeof(OrbisKernelStat));
if (file->is_directory) {
sb->st_mode = 0000777u | 0040000u;
@ -347,13 +316,14 @@ s32 PS4_SYSV_ABI sceKernelFsync(int fd) {
return ORBIS_OK;
}
int GetDents(int fd, char* buf, int nbytes, s64* basep) {
static int GetDents(int fd, char* buf, int nbytes, s64* basep) {
// TODO error codes
ASSERT(buf != nullptr);
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(fd);
if (file->dirents_index == file->dirents.size()) {
return 0;
return ORBIS_OK;
}
const auto& entry = file->dirents.at(file->dirents_index++);
@ -388,31 +358,20 @@ s64 PS4_SYSV_ABI sceKernelPwrite(int d, void* buf, size_t nbytes, s64 offset) {
if (d < 3) {
return ORBIS_KERNEL_ERROR_EPERM;
}
if (buf == nullptr) {
return ORBIS_KERNEL_ERROR_EFAULT;
}
if (offset < 0) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
if (file == nullptr) {
return ORBIS_KERNEL_ERROR_EBADF;
}
file->m_mutex.lock();
auto pos = file->f.Tell();
file->f.Seek(offset);
u32 bytes_write = file->f.WriteRaw<u8>(buf, static_cast<u32>(nbytes));
file->f.Seek(pos);
file->m_mutex.unlock();
return bytes_write;
std::scoped_lock lk{file->m_mutex};
const s64 pos = file->f.Tell();
SCOPE_EXIT { file->f.Seek(pos); };
return file->f.Seek(offset) && file->f.WriteRaw<u8>(buf, nbytes);
}
void fileSystemSymbolsRegister(Core::Loader::SymbolsResolver* sym) {