fusee_cpp: rename source dir to fusee

This commit is contained in:
Michael Scire 2021-09-05 10:12:20 -07:00 committed by SciresM
parent a6ea490615
commit 62f8408a2e
260 changed files with 0 additions and 0 deletions

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "../fatfs/ff.h"
#include "fusee_fs_api.hpp"
namespace ams::fs {
static_assert(sizeof(DirectoryEntry) == sizeof(FILINFO));
namespace {
constexpr size_t MaxFiles = 8 + 64;
constexpr size_t MaxDirectories = 2;
constinit bool g_is_sd_mounted = false;
constinit bool g_is_sys_mounted = false;
alignas(0x10) constinit FATFS g_sd_fs = {};
alignas(0x10) constinit FATFS g_sys_fs = {};
alignas(0x10) constinit FIL g_files[MaxFiles] = {};
alignas(0x10) constinit DIR g_dirs[MaxDirectories] = {};
constinit bool g_files_opened[MaxFiles] = {};
constinit bool g_dirs_opened[MaxFiles] = {};
constinit int g_open_modes[MaxFiles] = {};
Result TranslateFatFsError(FRESULT res) {
switch (res) {
case FR_OK:
return ResultSuccess();
case FR_DISK_ERR:
return fs::ResultMmcAccessFailed();
case FR_INT_ERR:
return fs::ResultPreconditionViolation();
case FR_NOT_READY:
return fs::ResultMmcAccessFailed();
case FR_NO_FILE:
return fs::ResultPathNotFound();
case FR_NO_PATH:
return fs::ResultPathNotFound();
case FR_INVALID_NAME:
return fs::ResultInvalidPath();
case FR_DENIED:
return fs::ResultPermissionDenied();
case FR_EXIST:
return fs::ResultPathAlreadyExists();
case FR_INVALID_OBJECT:
return fs::ResultInvalidArgument();
case FR_WRITE_PROTECTED:
return fs::ResultWriteNotPermitted();
case FR_INVALID_DRIVE:
return fs::ResultInvalidMountName();
case FR_NOT_ENABLED:
return fs::ResultInvalidMountName(); /* BAD/TODO */
case FR_NO_FILESYSTEM:
return fs::ResultInvalidMountName(); /* BAD/TODO */
case FR_TIMEOUT:
return fs::ResultTargetLocked(); /* BAD/TODO */
case FR_LOCKED:
return fs::ResultTargetLocked();
case FR_NOT_ENOUGH_CORE:
return fs::ResultPreconditionViolation(); /* BAD/TODO */
case FR_TOO_MANY_OPEN_FILES:
return fs::ResultPreconditionViolation(); /* BAD/TODO */
case FR_INVALID_PARAMETER:
return fs::ResultInvalidArgument();
default:
return fs::ResultInternal();
}
}
int TranslateToFatFsMode(int mode) {
int fmode = FA_OPEN_EXISTING;
if ((mode & OpenMode_Read) != 0) {
fmode |= FA_READ;
}
if ((mode & OpenMode_Write) != 0) {
fmode |= FA_WRITE;
}
if ((mode & OpenMode_AllowAppend) != 0) {
fmode |= FA_OPEN_APPEND;
}
return fmode;
}
FIL *GetInternalFile(FileHandle handle) {
return static_cast<FIL *>(handle._handle);
}
DIR *GetInternalDirectory(DirectoryHandle handle) {
return static_cast<DIR *>(handle._handle);
}
ALWAYS_INLINE size_t GetFileIndex(FIL *fp) {
const size_t file_index = (fp - g_files);
AMS_ASSERT(file_index < MaxFiles);
return file_index;
}
ALWAYS_INLINE size_t GetDirectoryIndex(DIR *dp) {
const size_t dir_index = (dp - g_dirs);
AMS_ASSERT(dir_index < MaxDirectories);
return dir_index;
}
}
bool MountSdCard() {
AMS_ASSERT(!g_is_sd_mounted);
g_is_sd_mounted = f_mount(std::addressof(g_sd_fs), "sdmc:", 1) == FR_OK;
return g_is_sd_mounted;
}
void UnmountSdCard() {
AMS_ASSERT(g_is_sd_mounted);
f_unmount("sdmc:");
g_is_sd_mounted = false;
}
bool MountSystem() {
AMS_ASSERT(!g_is_sys_mounted);
g_is_sys_mounted = f_mount(std::addressof(g_sys_fs), "sys:", 1) == FR_OK;
return g_is_sys_mounted;
}
void UnmountSystem() {
AMS_ASSERT(g_is_sys_mounted);
f_unmount("sys:");
g_is_sys_mounted = false;
}
Result GetEntryType(DirectoryEntryType *out_entry_type, bool *out_archive, const char *path) {
/* Get the file info. */
FILINFO info;
R_TRY(TranslateFatFsError(f_stat(path, std::addressof(info))));
/* Handle the file. */
*out_entry_type = (info.fattrib & AM_DIR) ? DirectoryEntryType_Directory : DirectoryEntryType_File;
*out_archive = (info.fattrib & AM_ARC);
return ResultSuccess();
}
Result CreateFile(const char *path, s64 size) {
/* Create the file. */
FIL fp;
R_TRY(TranslateFatFsError(f_open(std::addressof(fp), path, FA_CREATE_NEW | FA_READ | FA_WRITE)));
/* Ensure that we close the file when we're done with it. */
ON_SCOPE_EXIT { f_close(std::addressof(fp)); };
/* Expand the file. */
R_TRY(TranslateFatFsError(f_expand(std::addressof(fp), size, 1)));
return ResultSuccess();
}
Result CreateDirectory(const char *path) {
return TranslateFatFsError(f_mkdir(path));
}
Result OpenFile(FileHandle *out_file, const char *path, int mode) {
/* Find a free file. */
for (size_t i = 0; i < MaxFiles; ++i) {
if (!g_files_opened[i]) {
/* Open the file. */
FIL *fp = std::addressof(g_files[i]);
R_TRY(TranslateFatFsError(f_open(fp, path, TranslateToFatFsMode(mode))));
/* Set the output. */
out_file->_handle = fp;
g_files_opened[i] = true;
g_open_modes[i] = mode;
return ResultSuccess();
}
}
return fs::ResultOpenCountLimit();
}
Result OpenDirectory(DirectoryHandle *out_dir, const char *path) {
/* Find a free directory. */
for (size_t i = 0; i < MaxDirectories; ++i) {
if (!g_dirs_opened[i]) {
/* Open the file. */
DIR *dp = std::addressof(g_dirs[i]);
R_TRY(TranslateFatFsError(f_opendir(dp, path)));
/* Set the output. */
out_dir->_handle = dp;
g_dirs_opened[i] = true;
return ResultSuccess();
}
}
return fs::ResultOpenCountLimit();
}
Result ReadDirectory(s64 *out_count, DirectoryEntry *out_entries, DirectoryHandle handle, s64 max_entries) {
DIR * const dp = GetInternalDirectory(handle);
s64 count = 0;
while (count < max_entries) {
R_TRY(TranslateFatFsError(f_readdir(dp, reinterpret_cast<FILINFO *>(out_entries + count))));
if (out_entries[count].file_name[0] == '\x00') {
break;
}
++count;
}
*out_count = count;
return ResultSuccess();
}
void CloseDirectory(DirectoryHandle handle) {
const size_t index = GetDirectoryIndex(GetInternalDirectory(handle));
f_closedir(std::addressof(g_dirs[index]));
g_dirs_opened[index] = false;
}
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) {
/* Option is unused. */
AMS_UNUSED(option);
/* Seek to the offset we're reading at. */
R_TRY(TranslateFatFsError(f_lseek(GetInternalFile(handle), offset)));
/* Read the data. */
UINT br;
R_TRY(TranslateFatFsError(f_read(GetInternalFile(handle), buffer, size, std::addressof(br))));
/* Check that we read the correct amount. */
R_UNLESS(br == size, fs::ResultOutOfRange());
return ResultSuccess();
}
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size) {
return ReadFile(handle, offset, buffer, size, fs::ReadOption::None);
}
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) {
/* Option is unused. */
AMS_UNUSED(option);
/* Seek to the offset we're reading at. */
R_TRY(TranslateFatFsError(f_lseek(GetInternalFile(handle), offset)));
/* Read the data. */
UINT br;
R_TRY(TranslateFatFsError(f_read(GetInternalFile(handle), buffer, size, std::addressof(br))));
/* Set the output size. */
*out = br;
return ResultSuccess();
}
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size) {
return ReadFile(out, handle, offset, buffer, size, fs::ReadOption::None);
}
Result GetFileSize(s64 *out, FileHandle handle) {
FIL *fp = GetInternalFile(handle);
*out = f_size(fp);
return ResultSuccess();
}
Result FlushFile(FileHandle handle) {
return TranslateFatFsError(f_sync(GetInternalFile(handle)));
}
Result WriteFile(FileHandle handle, s64 offset, const void *buffer, size_t size, const fs::WriteOption &option) {
/* Seek to the offset we're writing at. */
R_TRY(TranslateFatFsError(f_lseek(GetInternalFile(handle), offset)));
/* Write the data. */
UINT bw;
R_TRY(TranslateFatFsError(f_write(GetInternalFile(handle), buffer, size, std::addressof(bw))));
/* Check that we wrote the correct amount. */
R_UNLESS(bw == size, fs::ResultOutOfRange());
/* If we should, flush the file. */
if (option.HasFlushFlag()) {
R_TRY(FlushFile(handle));
}
return ResultSuccess();
}
Result SetFileSize(FileHandle handle, s64 size) {
FIL *fp = GetInternalFile(handle);
/* Check if we have nothing to do. */
const size_t fsize = f_size(fp);
R_SUCCEED_IF(static_cast<FSIZE_t>(size) == fsize);
/* NOTE/TODO: This may not preserve file data. Do this in a way that does? */
/* Truncate the file. */
R_TRY(TranslateFatFsError(f_truncate(fp)));
/* Expand the file. */
R_TRY(TranslateFatFsError(f_expand(fp, size, 1)));
/* Ensure the file is synchronized. */
R_TRY(FlushFile(handle));
/* Check that our expansion succeeded. */
AMS_ASSERT(f_size(fp) == static_cast<FSIZE_t>(size));
return ResultSuccess();
}
int GetFileOpenMode(FileHandle handle) {
return g_open_modes[GetFileIndex(GetInternalFile(handle))];
}
void CloseFile(FileHandle handle) {
const size_t index = GetFileIndex(GetInternalFile(handle));
f_close(std::addressof(g_files[index]));
g_open_modes[index] = 0;
g_files_opened[index] = false;
}
}

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <exosphere.hpp>
namespace ams::fs {
enum OpenMode {
OpenMode_Read = (1 << 0),
OpenMode_Write = (1 << 1),
OpenMode_AllowAppend = (1 << 2),
OpenMode_ReadWrite = (OpenMode_Read | OpenMode_Write),
OpenMode_All = (OpenMode_ReadWrite | OpenMode_AllowAppend),
};
struct ReadOption {
u32 value;
static const ReadOption None;
};
inline constexpr const ReadOption ReadOption::None = {0};
inline constexpr bool operator==(const ReadOption &lhs, const ReadOption &rhs) {
return lhs.value == rhs.value;
}
inline constexpr bool operator!=(const ReadOption &lhs, const ReadOption &rhs) {
return !(lhs == rhs);
}
static_assert(util::is_pod<ReadOption>::value && sizeof(ReadOption) == sizeof(u32));
struct WriteOption {
u32 value;
constexpr inline bool HasFlushFlag() const {
return this->value & 1;
}
static const WriteOption None;
static const WriteOption Flush;
};
inline constexpr const WriteOption WriteOption::None = {0};
inline constexpr const WriteOption WriteOption::Flush = {1};
inline constexpr bool operator==(const WriteOption &lhs, const WriteOption &rhs) {
return lhs.value == rhs.value;
}
inline constexpr bool operator!=(const WriteOption &lhs, const WriteOption &rhs) {
return !(lhs == rhs);
}
static_assert(util::is_pod<WriteOption>::value && sizeof(WriteOption) == sizeof(u32));
enum DirectoryEntryType {
DirectoryEntryType_Directory = 0,
DirectoryEntryType_File = 1,
};
struct DirectoryEntry {
u64 file_size;
u16 file_date;
u16 file_time;
u8 file_attr;
char altname[13];
char file_name[0x100];
};
constexpr ALWAYS_INLINE DirectoryEntryType GetEntryType(const DirectoryEntry &entry) {
return (entry.file_attr & 0x10) ? DirectoryEntryType_Directory : DirectoryEntryType_File;
}
struct FileHandle {
void *_handle;
};
struct DirectoryHandle {
void *_handle;
};
bool MountSdCard();
void UnmountSdCard();
bool MountSystem();
void UnmountSystem();
Result GetEntryType(DirectoryEntryType *out_entry_type, bool *out_archive, const char *path);
Result CreateFile(const char *path, s64 size);
Result CreateDirectory(const char *path);
Result OpenFile(FileHandle *out_file, const char *path, int mode);
Result OpenDirectory(DirectoryHandle *out_dir, const char *path);
Result ReadDirectory(s64 *out_count, DirectoryEntry *out_entries, DirectoryHandle handle, s64 max_entries);
void CloseDirectory(DirectoryHandle handle);
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option);
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size);
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option);
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size);
Result GetFileSize(s64 *out, FileHandle handle);
Result FlushFile(FileHandle handle);
Result WriteFile(FileHandle handle, s64 offset, const void *buffer, size_t size, const fs::WriteOption &option);
Result SetFileSize(FileHandle handle, s64 size);
int GetFileOpenMode(FileHandle handle);
void CloseFile(FileHandle handle);
}

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "fusee_fs_storage.hpp"
namespace ams::fs {
Result FileHandleStorage::UpdateSize() {
R_SUCCEED_IF(m_size != InvalidSize);
return GetFileSize(std::addressof(m_size), m_handle);
}
Result FileHandleStorage::Read(s64 offset, void *buffer, size_t size) {
/* Immediately succeed if there's nothing to read. */
R_SUCCEED_IF(size == 0);
/* Validate buffer. */
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
/* Ensure our size is valid. */
R_TRY(this->UpdateSize());
/* Ensure our access is valid. */
R_UNLESS(IStorage::CheckAccessRange(offset, size, m_size), fs::ResultOutOfRange());
return ReadFile(m_handle, offset, buffer, size, fs::ReadOption());
}
Result FileHandleStorage::Write(s64 offset, const void *buffer, size_t size) {
/* Immediately succeed if there's nothing to write. */
R_SUCCEED_IF(size == 0);
/* Validate buffer. */
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
/* Ensure our size is valid. */
R_TRY(this->UpdateSize());
/* Ensure our access is valid. */
R_UNLESS(IStorage::CheckAccessRange(offset, size, m_size), fs::ResultOutOfRange());
return WriteFile(m_handle, offset, buffer, size, fs::WriteOption());
}
Result FileHandleStorage::Flush() {
return FlushFile(m_handle);
}
Result FileHandleStorage::GetSize(s64 *out_size) {
R_TRY(this->UpdateSize());
*out_size = m_size;
return ResultSuccess();
}
Result FileHandleStorage::SetSize(s64 size) {
m_size = InvalidSize;
return SetFileSize(m_handle, size);
}
}

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <exosphere.hpp>
#include "fusee_fs_api.hpp"
namespace ams::fs {
class IStorage {
public:
virtual Result Read(s64 offset, void *buffer, size_t size) = 0;
virtual Result Write(s64 offset, const void *buffer, size_t size) = 0;
virtual Result Flush() = 0;
virtual Result SetSize(s64 size) = 0;
virtual Result GetSize(s64 *out) = 0;
public:
static inline bool CheckAccessRange(s64 offset, s64 size, s64 total_size) {
return offset >= 0 &&
size >= 0 &&
size <= total_size &&
offset <= (total_size - size);
}
static inline bool CheckAccessRange(s64 offset, size_t size, s64 total_size) {
return CheckAccessRange(offset, static_cast<s64>(size), total_size);
}
static inline bool CheckOffsetAndSize(s64 offset, s64 size) {
return offset >= 0 &&
size >= 0 &&
offset <= (offset + size);
}
static inline bool CheckOffsetAndSize(s64 offset, size_t size) {
return CheckOffsetAndSize(offset, static_cast<s64>(size));
}
};
class ReadOnlyStorageAdapter : public IStorage {
private:
IStorage &m_storage;
public:
ReadOnlyStorageAdapter(IStorage &s) : m_storage(s) { /* ... */ }
virtual Result Read(s64 offset, void *buffer, size_t size) override {
return m_storage.Read(offset, buffer, size);
}
virtual Result Flush() override {
return m_storage.Flush();
}
virtual Result GetSize(s64 *out) override {
return m_storage.GetSize(out);
}
virtual Result Write(s64 offset, const void *buffer, size_t size) override {
return fs::ResultUnsupportedOperation();
}
virtual Result SetSize(s64 size) override {
return fs::ResultUnsupportedOperation();
}
};
class SubStorage : public IStorage {
private:
IStorage &m_storage;
s64 m_offset;
s64 m_size;
public:
SubStorage(IStorage &s, s64 o, s64 sz) : m_storage(s), m_offset(o), m_size(sz) { /* ... */ }
virtual Result Read(s64 offset, void *buffer, size_t size) override {
/* Succeed immediately on zero-sized operation. */
R_SUCCEED_IF(size == 0);
/* Validate arguments and read. */
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
R_UNLESS(IStorage::CheckAccessRange(offset, size, m_size), fs::ResultOutOfRange());
return m_storage.Read(m_offset + offset, buffer, size);
}
virtual Result Write(s64 offset, const void *buffer, size_t size) override{
/* Succeed immediately on zero-sized operation. */
R_SUCCEED_IF(size == 0);
/* Validate arguments and write. */
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
R_UNLESS(IStorage::CheckAccessRange(offset, size, m_size), fs::ResultOutOfRange());
return m_storage.Write(m_offset + offset, buffer, size);
}
virtual Result Flush() override {
return m_storage.Flush();
}
virtual Result GetSize(s64 *out) override {
*out = m_size;
return ResultSuccess();
}
virtual Result SetSize(s64 size) override {
return fs::ResultUnsupportedOperationInSubStorageA();
}
};
class FileHandleStorage : public IStorage {
private:
static constexpr s64 InvalidSize = -1;
private:
FileHandle m_handle;
s64 m_size;
public:
constexpr explicit FileHandleStorage(FileHandle handle) : m_handle(handle), m_size(InvalidSize) { /* ... */ }
~FileHandleStorage() { fs::CloseFile(m_handle); }
protected:
Result UpdateSize();
public:
virtual Result Read(s64 offset, void *buffer, size_t size) override;
virtual Result Write(s64 offset, const void *buffer, size_t size) override;
virtual Result Flush() override;
virtual Result GetSize(s64 *out_size) override;
virtual Result SetSize(s64 size) override;
};
}