/// <summary>
///
/// </summary>
/// <param name="blockHeader"></param>
/// <returns></returns>
public byte[] ReadBytes(V8BlockHeader blockHeader)
{
Int32 bytesReaded = 0;
Int32 bytesToRead = 0;
Int32 dataSize = blockHeader.DataSize;
byte[] bytes = new byte[dataSize];
while (dataSize > bytesReaded)
{
bytesToRead = Math.Min(blockHeader.PageSize, dataSize - bytesReaded);
_reader.Read(bytes, bytesReaded, bytesToRead);
bytesReaded += bytesToRead;
if (blockHeader.RefToNextPage != 0x7FFFFFFF)
{
// Seek to next block header
Seek(blockHeader.RefToNextPage, SeekOrigin.Begin);
blockHeader = ReadBlockHeader();
}
}
return bytes;
}
/// <summary>
/// Reads <see cref="V8Commit.Entities.V8FileSystem.V8BlockHeader"/>
/// from <see cref="_reader"/>
/// </summary>
/// <returns>
/// Returns <see cref="V8Commit.Entities.V8FileSystem.V8BlockHeader"/>
/// with data
/// </returns>
/// <permission cref="System.Security.PermissionSet">Everyone
/// can access this method.
/// </permission>
public V8BlockHeader ReadBlockHeader()
{
char[] Block = _reader.ReadChars(V8BlockHeader.Size());
if (Block[0] != 0x0d || Block[1] != 0x0a ||
Block[10] != 0x20 || Block[19] != 0x20 ||
Block[28] != 0x20 || Block[29] != 0x0d || Block[30] != 0x0a)
{
throw new NotImplementedException();
}
string HexDataSize = new string(Block, 2, 8);
string HexPageSize = new string(Block, 11, 8);
string HexNextPage = new string(Block, 20, 8);
V8BlockHeader header = new V8BlockHeader();
header.DataSize = Convert.ToInt32(HexDataSize, 16);
header.PageSize = Convert.ToInt32(HexPageSize, 16);
header.RefToNextPage = Convert.ToInt32(HexNextPage, 16);
return header;
}
