void File::Write(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0803, 4, 2);
u64 offset = rp.Pop<u64>();
u32 length = rp.Pop<u32>();
u32 flush = rp.Pop<u32>();
auto& buffer = rp.PopMappedBuffer();
LOG_TRACE(Service_FS, "Write {}: offset=0x{:x} length={}, flush=0x{:x}", GetName(), offset,
length, flush);
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
const FileSessionSlot* file = GetSessionData(ctx.Session());
// Subfiles can not be written to
if (file->subfile) {
rb.Push(FileSys::ERROR_UNSUPPORTED_OPEN_FLAGS);
rb.Push<u32>(0);
rb.PushMappedBuffer(buffer);
return;
}
std::vector<u8> data(length);
buffer.Read(data.data(), 0, data.size());
ResultVal<std::size_t> written = backend->Write(offset, data.size(), flush != 0, data.data());
if (written.Failed()) {
rb.Push(written.Code());
rb.Push<u32>(0);
} else {
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(static_cast<u32>(*written));
}
rb.PushMappedBuffer(buffer);
}
/**
* FS_User::OpenFile service function
* Inputs:
* 1 : Transaction
* 2 : Archive handle lower word
* 3 : Archive handle upper word
* 4 : Low path type
* 5 : Low path size
* 6 : Open flags
* 7 : Attributes
* 8 : (LowPathSize << 14) | 2
* 9 : Low path data pointer
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : File handle
*/
static void OpenFile(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
// TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
auto filename_type = static_cast<FileSys::LowPathType>(cmd_buff[4]);
u32 filename_size = cmd_buff[5];
FileSys::Mode mode; mode.hex = cmd_buff[6];
u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
u32 filename_ptr = cmd_buff[9];
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
DEBUG_LOG(KERNEL, "path=%s, mode=%d attrs=%u", file_path.DebugStr().c_str(), mode.hex, attributes);
ResultVal<Handle> handle = Kernel::OpenFileFromArchive(archive_handle, file_path, mode);
cmd_buff[1] = handle.Code().raw;
if (handle.Succeeded()) {
cmd_buff[3] = *handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
}
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenArchive service function
* Inputs:
* 1 : Archive ID
* 2 : Archive low path type
* 3 : Archive low path size
* 4 : (LowPathSize << 14) | 2
* 5 : Archive low path
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Archive handle lower word (unused)
* 3 : Archive handle upper word (same as file handle)
*/
static void OpenArchive(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
auto archive_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[1]);
auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
u32 archivename_size = cmd_buff[3];
u32 archivename_ptr = cmd_buff[5];
FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
DEBUG_LOG(KERNEL, "archive_path=%s", archive_path.DebugStr().c_str());
if (archive_path.GetType() != FileSys::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
return;
}
ResultVal<Handle> handle = Kernel::OpenArchive(archive_id);
cmd_buff[1] = handle.Code().raw;
if (handle.Succeeded()) {
// cmd_buff[2] isn't used according to 3dmoo's implementation.
cmd_buff[3] = *handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for archive");
}
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenFileDirectly service function
* Inputs:
* 1 : Transaction
* 2 : Archive ID
* 3 : Archive low path type
* 4 : Archive low path size
* 5 : File low path type
* 6 : File low path size
* 7 : Flags
* 8 : Attributes
* 9 : (ArchiveLowPathSize << 14) | 0x802
* 10 : Archive low path
* 11 : (FileLowPathSize << 14) | 2
* 12 : File low path
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : File handle
*/
static void OpenFileDirectly(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
auto archive_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[2]);
auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
u32 archivename_size = cmd_buff[4];
auto filename_type = static_cast<FileSys::LowPathType>(cmd_buff[5]);
u32 filename_size = cmd_buff[6];
FileSys::Mode mode; mode.hex = cmd_buff[7];
u32 attributes = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
u32 archivename_ptr = cmd_buff[10];
u32 filename_ptr = cmd_buff[12];
FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
DEBUG_LOG(KERNEL, "archive_path=%s file_path=%s, mode=%u attributes=%d",
archive_path.DebugStr().c_str(), file_path.DebugStr().c_str(), mode.hex, attributes);
if (archive_path.GetType() != FileSys::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
return;
}
// TODO(Link Mauve): Check if we should even get a handle for the archive, and don't leak it
// TODO(yuriks): Why is there all this duplicate (and seemingly useless) code up here?
ResultVal<Handle> archive_handle = Kernel::OpenArchive(archive_id);
cmd_buff[1] = archive_handle.Code().raw;
if (archive_handle.Failed()) {
ERROR_LOG(KERNEL, "failed to get a handle for archive");
return;
}
// cmd_buff[2] isn't used according to 3dmoo's implementation.
cmd_buff[3] = *archive_handle;
ResultVal<Handle> handle = Kernel::OpenFileFromArchive(*archive_handle, file_path, mode);
cmd_buff[1] = handle.Code().raw;
if (handle.Succeeded()) {
cmd_buff[3] = *handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
}
DEBUG_LOG(KERNEL, "called");
}
/// Synchronize to an OS service
static Result SendSyncRequest(Handle handle) {
// TODO(yuriks): ObjectPool::Get tries to check the Object type, which fails since this is a generic base Object,
// so we are forced to use GetFast and manually verify the handle.
if (!Kernel::g_object_pool.IsValid(handle)) {
return InvalidHandle(ErrorModule::Kernel).raw;
}
Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handle);
_assert_msg_(KERNEL, (object != nullptr), "called, but kernel object is nullptr!");
DEBUG_LOG(SVC, "called handle=0x%08X(%s)", handle, object->GetTypeName().c_str());
ResultVal<bool> wait = object->SyncRequest();
if (wait.Succeeded() && *wait) {
Kernel::WaitCurrentThread(WAITTYPE_SYNCH); // TODO(bunnei): Is this correct?
}
return wait.Code().raw;
}
/// Wait for a handle to synchronize, timeout after the specified nanoseconds
static Result WaitSynchronization1(Handle handle, s64 nano_seconds) {
// TODO(bunnei): Do something with nano_seconds, currently ignoring this
bool wait_infinite = (nano_seconds == -1); // Used to wait until a thread has terminated
if (!Kernel::g_object_pool.IsValid(handle)) {
return InvalidHandle(ErrorModule::Kernel).raw;
}
Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handle);
_dbg_assert_(KERNEL, object != nullptr);
DEBUG_LOG(SVC, "called handle=0x%08X(%s:%s), nanoseconds=%lld", handle, object->GetTypeName().c_str(),
object->GetName().c_str(), nano_seconds);
ResultVal<bool> wait = object->WaitSynchronization();
// Check for next thread to schedule
if (wait.Succeeded() && *wait) {
HLE::Reschedule(__func__);
}
return wait.Code().raw;
}
static void OpenDirectory(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
// TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
Handle archive_handle = static_cast<Handle>(cmd_buff[2]);
auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
u32 dirname_size = cmd_buff[4];
u32 dirname_ptr = cmd_buff[6];
FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
ResultVal<Handle> handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_path);
cmd_buff[1] = handle.Code().raw;
if (handle.Succeeded()) {
cmd_buff[3] = *handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for directory");
}
DEBUG_LOG(KERNEL, "called");
}
file_path.DebugStr().c_str(), mode.hex, attributes);
ResultVal<ArchiveHandle> archive_handle = OpenArchive(archive_id, archive_path);
if (archive_handle.Failed()) {
LOG_ERROR(Service_FS,
"Failed to get a handle for archive archive_id=0x%08X archive_path=%s",
static_cast<u32>(archive_id), archive_path.DebugStr().c_str());
cmd_buff[1] = archive_handle.Code().raw;
cmd_buff[3] = 0;
return;
}
SCOPE_EXIT({ CloseArchive(*archive_handle); });
ResultVal<std::shared_ptr<File>> file_res =
OpenFileFromArchive(*archive_handle, file_path, mode);
cmd_buff[1] = file_res.Code().raw;
if (file_res.Succeeded()) {
std::shared_ptr<File> file = *file_res;
auto sessions = ServerSession::CreateSessionPair(file->GetName());
file->ClientConnected(std::get<SharedPtr<ServerSession>>(sessions));
cmd_buff[3] =
Kernel::g_handle_table.Create(std::get<SharedPtr<ClientSession>>(sessions)).Unwrap();
} else {
cmd_buff[3] = 0;
LOG_ERROR(Service_FS, "failed to get a handle for file %s mode=%u attributes=%u",
file_path.DebugStr().c_str(), mode.hex, attributes);
}
}
/*
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
ResultVal<ArchiveHandle> archive_handle = archives.OpenArchive(archive_id, archive_path);
if (archive_handle.Failed()) {
LOG_ERROR(Service_FS,
"Failed to get a handle for archive archive_id=0x{:08X} archive_path={}",
static_cast<u32>(archive_id), archive_path.DebugStr());
rb.Push(archive_handle.Code());
rb.PushMoveObjects<Kernel::Object>(nullptr);
return;
}
SCOPE_EXIT({ archives.CloseArchive(*archive_handle); });
ResultVal<std::shared_ptr<File>> file_res =
archives.OpenFileFromArchive(*archive_handle, file_path, mode);
rb.Push(file_res.Code());
if (file_res.Succeeded()) {
std::shared_ptr<File> file = *file_res;
rb.PushMoveObjects(file->Connect());
} else {
rb.PushMoveObjects<Kernel::Object>(nullptr);
LOG_ERROR(Service_FS, "failed to get a handle for file {} mode={} attributes={}",
file_path.DebugStr(), mode.hex, attributes);
}
}
void FS_USER::DeleteFile(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x804, 5, 2);
rp.Skip(1, false); // TransactionId
ArchiveHandle archive_handle = rp.PopRaw<ArchiveHandle>();
auto filename_type = rp.PopEnum<FileSys::LowPathType>();