internal byte[] SerializeMetadata(List <FileInfo> fileInfos)
{
byte[] buffer;
if (fileInfos.Count > FileInfo.MAX_FILE)
{
throw new ArgumentException("Too many files");
}
using (var ms = new MemoryStream())
{
using (var bw = new BinaryWriter(ms, Encoding.UTF8))
{
bw.Write((byte)MAGIC_BYTE); // 1 byte
bw.Write((Int32)fileInfos.Count); // 2 byte
foreach (var fi in fileInfos)
{
bw.Write(BinSerializer.SerializeStringInUTF8(fi.FileName, FileInfo.MAX_FILE_NAME_SIZE)); // 16
bw.Write((Int32)fi.StartPage); // 4 byte
bw.Write((Int32)fi.Length); // 4 byte
bw.Write(fi.Created.Ticks); // 8 bytes
}
}
buffer = ms.ToArray();
buffer = BinSerializer.PadBuffer(buffer, FAT_END_ADDR);
return(buffer);
}
}
/// <summary>
/// Convert the FAT data into a byte array
/// </summary>
/// <param name="fileInfos"></param>
/// <returns></returns>
internal byte[] SerializeFAT()
{
byte[] buffer;
if (FileInfos.Count > MAX_FILE_PER_FAT)
{
throw new ArgumentException("Too many files");
}
using (var ms = new MemoryStream())
{
using (var bw = new BinaryWriter(ms, Encoding.UTF8))
{
bw.Write((byte)MAGIC_BYTE); // 1 byte
bw.Write((Int32)FileInfos.Count); // 4 byte
foreach (var fi in FileInfos)
{
bw.Write(BinSerializer.SerializeStringInUTF8(fi.FileName, sFsFileInfo.MAX_FILE_NAME_SIZE)); // 32 bytes
bw.Write((Int32)fi.StartPage); // 4 bytes
bw.Write((Int32)fi.Length); // 4 bytes
bw.Write(fi.LastModificationDate.Ticks); // 8 bytes
}
}
buffer = ms.ToArray();
buffer = BinSerializer.PadBuffer(buffer, FAT_END_ADDR);
return(buffer);
}
}
