bool File::Delete(const String &path)
{
ManagedObject<FileStream> file = File::Open(path,
FileMode::OpenExist,
FileAccess::NT_DELETE);
return file.IsNull() ? false : file->Delete();
}
FileStream *File::Create(const String &path,
FileMode mode /* = FileMode::CreateOnly */,
FileAccess access /* = FileAccess::ReadWrite */,
FileAttributes attr /* = FileAttributes::Normal */,
FileShare share /* = FileShare::None */,
FileOptions options /* = FileOptions::None */)
{
ManagedObject<FileStream> file = new FileStream;
if (file.IsNull()) {
Exception::SetLastException(STATUS_NO_MEMORY, false);
return nullptr;
} //if
// converts to full nt path
TCHAR fullpath[RLIB_MAX_PATH];
StringCopyToW(Path::ToNtPath(path), fullpath);
UNICODE_STRING us_path;
RtlInitUnicodeString(&us_path, fullpath);
// others parameters
OBJECT_ATTRIBUTES obj_attr;
InitializeObjectAttributes(&obj_attr, &us_path, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE,
NULL, NULL);
IO_STATUS_BLOCK io_stat;
NTSTATUS status = NtCreateFile(&file->m_native_handle,
static_cast<ACCESS_MASK>(access),
&obj_attr,
&io_stat,
NULL,
static_cast<ULONG>(attr),
static_cast<ULONG>(share),
static_cast<ULONG>(mode != FileMode::AppendAlways ? mode : FileMode::OpenOrCreate),
static_cast<ULONG>(options),
NULL,
NULL);
if (status == STATUS_SUCCESS) {
if (mode == FileMode::AppendAlways) {
file->Position = file->Length;
} //if
return file.SuppressFinalize();
} //if
file->m_native_handle = INVALID_HANDLE_VALUE;
Exception::SetLastException(status);
return nullptr;
}