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fs: Add FileSystemAccessor classes

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This commit is contained in:
FearlessTobi
2024-02-10 18:15:58 +01:00
parent c9ef2e26ca
commit d5e4617ab5
14 changed files with 554 additions and 130 deletions
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58
src/core/hle/service/filesystem/fsp/fs_i_directory.cpp
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@ -8,43 +8,15 @@
namespace Service::FileSystem {
template <typename T>
static void BuildEntryIndex(std::vector<FileSys::DirectoryEntry>& entries,
const std::vector<T>& new_data, FileSys::DirectoryEntryType type) {
entries.reserve(entries.size() + new_data.size());
for (const auto& new_entry : new_data) {
auto name = new_entry->GetName();
if (type == FileSys::DirectoryEntryType::File &&
name == FileSys::GetSaveDataSizeFileName()) {
continue;
}
entries.emplace_back(name, static_cast<s8>(type),
type == FileSys::DirectoryEntryType::Directory ? 0
: new_entry->GetSize());
}
}
IDirectory::IDirectory(Core::System& system_, FileSys::VirtualDir backend_,
IDirectory::IDirectory(Core::System& system_, FileSys::VirtualDir directory_,
FileSys::OpenDirectoryMode mode)
: ServiceFramework{system_, "IDirectory"}, backend(std::move(backend_)) {
: ServiceFramework{system_, "IDirectory"},
backend(std::make_unique<FileSys::Fsa::IDirectory>(directory_, mode)) {
static const FunctionInfo functions[] = {
{0, &IDirectory::Read, "Read"},
{1, &IDirectory::GetEntryCount, "GetEntryCount"},
};
RegisterHandlers(functions);
// TODO(DarkLordZach): Verify that this is the correct behavior.
// Build entry index now to save time later.
if (True(mode & FileSys::OpenDirectoryMode::Directory)) {
BuildEntryIndex(entries, backend->GetSubdirectories(),
FileSys::DirectoryEntryType::Directory);
}
if (True(mode & FileSys::OpenDirectoryMode::File)) {
BuildEntryIndex(entries, backend->GetFiles(), FileSys::DirectoryEntryType::File);
}
}
void IDirectory::Read(HLERequestContext& ctx) {
@ -53,32 +25,26 @@ void IDirectory::Read(HLERequestContext& ctx) {
// Calculate how many entries we can fit in the output buffer
const u64 count_entries = ctx.GetWriteBufferNumElements<FileSys::DirectoryEntry>();
// Cap at total number of entries.
const u64 actual_entries = std::min(count_entries, entries.size() - next_entry_index);
// Determine data start and end
const auto* begin = reinterpret_cast<u8*>(entries.data() + next_entry_index);
const auto* end = reinterpret_cast<u8*>(entries.data() + next_entry_index + actual_entries);
const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
next_entry_index += actual_entries;
s64 out_count{};
FileSys::DirectoryEntry* out_entries = nullptr;
const auto result = backend->Read(&out_count, out_entries, count_entries);
// Write the data to memory
ctx.WriteBuffer(begin, range_size);
ctx.WriteBuffer(out_entries, out_count);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(actual_entries);
rb.Push(result);
rb.Push(out_count);
}
void IDirectory::GetEntryCount(HLERequestContext& ctx) {
LOG_DEBUG(Service_FS, "called");
u64 count = entries.size() - next_entry_index;
s64 out_count{};
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(count);
rb.Push(backend->GetEntryCount(&out_count));
rb.Push(out_count);
}
} // namespace Service::FileSystem

7
src/core/hle/service/filesystem/fsp/fs_i_directory.h
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@ -3,6 +3,7 @@
#pragma once
#include "core/file_sys/fsa/fs_i_directory.h"
#include "core/file_sys/vfs/vfs.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/hle/service/service.h"
@ -15,13 +16,11 @@ namespace Service::FileSystem {
class IDirectory final : public ServiceFramework<IDirectory> {
public:
explicit IDirectory(Core::System& system_, FileSys::VirtualDir backend_,
explicit IDirectory(Core::System& system_, FileSys::VirtualDir directory_,
FileSys::OpenDirectoryMode mode);
private:
FileSys::VirtualDir backend;
std::vector<FileSys::DirectoryEntry> entries;
u64 next_entry_index = 0;
std::unique_ptr<FileSys::Fsa::IDirectory> backend;
void Read(HLERequestContext& ctx);
void GetEntryCount(HLERequestContext& ctx);

74
src/core/hle/service/filesystem/fsp/fs_i_file.cpp
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@ -7,8 +7,8 @@
namespace Service::FileSystem {
IFile::IFile(Core::System& system_, FileSys::VirtualFile backend_)
: ServiceFramework{system_, "IFile"}, backend(std::move(backend_)) {
IFile::IFile(Core::System& system_, FileSys::VirtualFile file_)
: ServiceFramework{system_, "IFile"}, backend{std::make_unique<FileSys::Fsa::IFile>(file_)} {
static const FunctionInfo functions[] = {
{0, &IFile::Read, "Read"},
{1, &IFile::Write, "Write"},
@ -29,79 +29,40 @@ void IFile::Read(HLERequestContext& ctx) {
LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option, offset, length);
// Error checking
if (length < 0) {
LOG_ERROR(Service_FS, "Length is less than 0, length={}", length);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(FileSys::ResultInvalidSize);
return;
}
if (offset < 0) {
LOG_ERROR(Service_FS, "Offset is less than 0, offset={}", offset);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(FileSys::ResultInvalidOffset);
return;
}
// Read the data from the Storage backend
std::vector<u8> output = backend->ReadBytes(length, offset);
std::vector<u8> output(length);
std::size_t bytes_read;
const auto result = backend->Read(&bytes_read, offset, output.data(), length);
// Write the data to memory
ctx.WriteBuffer(output);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(static_cast<u64>(output.size()));
rb.Push(result);
rb.Push(static_cast<u64>(bytes_read));
}
void IFile::Write(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 option = rp.Pop<u64>();
const auto option = rp.PopRaw<FileSys::WriteOption>();
[[maybe_unused]] const u32 unused = rp.Pop<u32>();
const s64 offset = rp.Pop<s64>();
const s64 length = rp.Pop<s64>();
LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option, offset, length);
// Error checking
if (length < 0) {
LOG_ERROR(Service_FS, "Length is less than 0, length={}", length);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(FileSys::ResultInvalidSize);
return;
}
if (offset < 0) {
LOG_ERROR(Service_FS, "Offset is less than 0, offset={}", offset);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(FileSys::ResultInvalidOffset);
return;
}
LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option.value, offset,
length);
const auto data = ctx.ReadBuffer();
ASSERT_MSG(static_cast<s64>(data.size()) <= length,
"Attempting to write more data than requested (requested={:016X}, actual={:016X}).",
length, data.size());
// Write the data to the Storage backend
const auto write_size =
static_cast<std::size_t>(std::distance(data.begin(), data.begin() + length));
const std::size_t written = backend->Write(data.data(), write_size, offset);
ASSERT_MSG(static_cast<s64>(written) == length,
"Could not write all bytes to file (requested={:016X}, actual={:016X}).", length,
written);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
rb.Push(backend->Write(offset, data.data(), length, option));
}
void IFile::Flush(HLERequestContext& ctx) {
LOG_DEBUG(Service_FS, "called");
// Exists for SDK compatibiltity -- No need to flush file.
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
rb.Push(backend->Flush());
}
void IFile::SetSize(HLERequestContext& ctx) {
@ -109,18 +70,17 @@ void IFile::SetSize(HLERequestContext& ctx) {
const u64 size = rp.Pop<u64>();
LOG_DEBUG(Service_FS, "called, size={}", size);
backend->Resize(size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
rb.Push(backend->SetSize(size));
}
void IFile::GetSize(HLERequestContext& ctx) {
const u64 size = backend->GetSize();
s64 size;
const auto result = backend->GetSize(&size);
LOG_DEBUG(Service_FS, "called, size={}", size);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(result);
rb.Push<u64>(size);
}

5
src/core/hle/service/filesystem/fsp/fs_i_file.h
View File

@ -3,6 +3,7 @@
#pragma once
#include "core/file_sys/fsa/fs_i_file.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/hle/service/service.h"
@ -10,10 +11,10 @@ namespace Service::FileSystem {
class IFile final : public ServiceFramework<IFile> {
public:
explicit IFile(Core::System& system_, FileSys::VirtualFile backend_);
explicit IFile(Core::System& system_, FileSys::VirtualFile file_);
private:
FileSys::VirtualFile backend;
std::unique_ptr<FileSys::Fsa::IFile> backend;
void Read(HLERequestContext& ctx);
void Write(HLERequestContext& ctx);

41
src/core/hle/service/filesystem/fsp/fs_i_filesystem.cpp
View File

@ -9,9 +9,9 @@
namespace Service::FileSystem {
IFileSystem::IFileSystem(Core::System& system_, FileSys::VirtualDir backend_, SizeGetter size_)
: ServiceFramework{system_, "IFileSystem"}, backend{std::move(backend_)}, size{std::move(
size_)} {
IFileSystem::IFileSystem(Core::System& system_, FileSys::VirtualDir dir_, SizeGetter size_)
: ServiceFramework{system_, "IFileSystem"},
backend{std::make_unique<FileSys::Fsa::IFileSystem>(dir_)}, size{std::move(size_)} {
static const FunctionInfo functions[] = {
{0, &IFileSystem::CreateFile, "CreateFile"},
{1, &IFileSystem::DeleteFile, "DeleteFile"},
@ -39,6 +39,7 @@ void IFileSystem::CreateFile(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
const u64 file_mode = rp.Pop<u64>();
const u32 file_size = rp.Pop<u32>();
@ -47,67 +48,75 @@ void IFileSystem::CreateFile(HLERequestContext& ctx) {
file_size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.CreateFile(name, file_size));
rb.Push(backend->CreateFile(path, file_size));
}
void IFileSystem::DeleteFile(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_DEBUG(Service_FS, "called. file={}", name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.DeleteFile(name));
rb.Push(backend->DeleteFile(path));
}
void IFileSystem::CreateDirectory(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_DEBUG(Service_FS, "called. directory={}", name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.CreateDirectory(name));
rb.Push(backend->CreateDirectory(path));
}
void IFileSystem::DeleteDirectory(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_DEBUG(Service_FS, "called. directory={}", name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.DeleteDirectory(name));
rb.Push(backend->DeleteDirectory(path));
}
void IFileSystem::DeleteDirectoryRecursively(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_DEBUG(Service_FS, "called. directory={}", name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.DeleteDirectoryRecursively(name));
rb.Push(backend->DeleteDirectoryRecursively(path));
}
void IFileSystem::CleanDirectoryRecursively(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_DEBUG(Service_FS, "called. Directory: {}", name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.CleanDirectoryRecursively(name));
rb.Push(backend->CleanDirectoryRecursively(path));
}
void IFileSystem::RenameFile(HLERequestContext& ctx) {
const std::string src_name = Common::StringFromBuffer(ctx.ReadBuffer(0));
const std::string dst_name = Common::StringFromBuffer(ctx.ReadBuffer(1));
const auto src_path = FileSys::Path(src_name.c_str());
const auto dst_path = FileSys::Path(dst_name.c_str());
LOG_DEBUG(Service_FS, "called. file '{}' to file '{}'", src_name, dst_name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend.RenameFile(src_name, dst_name));
rb.Push(backend->RenameFile(src_path, dst_path));
}
void IFileSystem::OpenFile(HLERequestContext& ctx) {
@ -115,13 +124,14 @@ void IFileSystem::OpenFile(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
const auto mode = static_cast<FileSys::OpenMode>(rp.Pop<u32>());
LOG_DEBUG(Service_FS, "called. file={}, mode={}", name, mode);
FileSys::VirtualFile vfs_file{};
auto result = backend.OpenFile(&vfs_file, name, mode);
auto result = backend->OpenFile(&vfs_file, path, mode);
if (result != ResultSuccess) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
@ -140,12 +150,13 @@ void IFileSystem::OpenDirectory(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
const auto mode = rp.PopRaw<FileSys::OpenDirectoryMode>();
LOG_DEBUG(Service_FS, "called. directory={}, mode={}", name, mode);
FileSys::VirtualDir vfs_dir{};
auto result = backend.OpenDirectory(&vfs_dir, name);
auto result = backend->OpenDirectory(&vfs_dir, path, mode);
if (result != ResultSuccess) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
@ -162,11 +173,12 @@ void IFileSystem::OpenDirectory(HLERequestContext& ctx) {
void IFileSystem::GetEntryType(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_DEBUG(Service_FS, "called. file={}", name);
FileSys::DirectoryEntryType vfs_entry_type{};
auto result = backend.GetEntryType(&vfs_entry_type, name);
auto result = backend->GetEntryType(&vfs_entry_type, path);
if (result != ResultSuccess) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
@ -204,11 +216,12 @@ void IFileSystem::GetTotalSpaceSize(HLERequestContext& ctx) {
void IFileSystem::GetFileTimeStampRaw(HLERequestContext& ctx) {
const auto file_buffer = ctx.ReadBuffer();
const std::string name = Common::StringFromBuffer(file_buffer);
const auto path = FileSys::Path(name.c_str());
LOG_WARNING(Service_FS, "(Partial Implementation) called. file={}", name);
FileSys::FileTimeStampRaw vfs_timestamp{};
auto result = backend.GetFileTimeStampRaw(&vfs_timestamp, name);
auto result = backend->GetFileTimeStampRaw(&vfs_timestamp, path);
if (result != ResultSuccess) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);

5
src/core/hle/service/filesystem/fsp/fs_i_filesystem.h
View File

@ -3,6 +3,7 @@
#pragma once
#include "core/file_sys/fsa/fs_i_filesystem.h"
#include "core/file_sys/vfs/vfs.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/hle/service/filesystem/fsp/fsp_util.h"
@ -12,7 +13,7 @@ namespace Service::FileSystem {
class IFileSystem final : public ServiceFramework<IFileSystem> {
public:
explicit IFileSystem(Core::System& system_, FileSys::VirtualDir backend_, SizeGetter size_);
explicit IFileSystem(Core::System& system_, FileSys::VirtualDir dir_, SizeGetter size_);
void CreateFile(HLERequestContext& ctx);
void DeleteFile(HLERequestContext& ctx);
@ -31,7 +32,7 @@ public:
void GetFileSystemAttribute(HLERequestContext& ctx);
private:
VfsDirectoryServiceWrapper backend;
std::unique_ptr<FileSys::Fsa::IFileSystem> backend;
SizeGetter size;
};