public async Task UpdateAsync(EntryStatusEntity status, IEnumerable <EntryEntity> entities)
        {
            var path = Path.Combine(Definition.EntryDirectory, Definition.EntryFileFormatter(status.StorageNo));

            await fileService.DeleteFileAsync(path);

            using (var stream = await fileService.OpenAsync(path).ConfigureAwait(false))
            {
                var buffer = status.ToBytes();

                stream.Write(buffer, 0, buffer.Length);

                foreach (var entity in entities)
                {
                    buffer = entity.ToBytes();

                    stream.Write(buffer, 0, buffer.Length);
                }
            }
        }
        public async Task <EntryStatusEntity[]> QueryEntryStatusListAsync()
        {
            var list   = new List <EntryStatusEntity>();
            var buffer = new byte[EntryStatusEntity.Size];

            foreach (var file in await fileService.GetFilesAsync(Definition.EntryDirectory, "*"))
            {
                var path = Path.Combine(Definition.EntryDirectory, file);
                using (var stream = await fileService.OpenReadAsync(path).ConfigureAwait(false))
                {
                    stream.Read(buffer, 0, buffer.Length);

                    var entity = new EntryStatusEntity();
                    entity.FromBytes(buffer);

                    list.Add(entity);
                }
            }

            return(list.ToArray());
        }