private StorageItem <T> ReadMetaData(FileStream fs, out int metasize)
{
byte[] hdr = new byte[5];
// read header
fs.Read(hdr, 0, 5); // meta length
int len = Helper.ToInt32(hdr, 1);
int type = hdr[0];
if (type > 0)
{
metasize = len + 5;
hdr = new byte[len];
fs.Read(hdr, 0, len);
StorageItem <T> meta;
if (type == 1)
{
meta = fastBinaryJSON.BJSON.ToObject <StorageItem <T> >(hdr);
}
else
{
string str = Helper.GetString(hdr, 0, (short)hdr.Length);
meta = fastJSON.JSON.ToObject <StorageItem <T> >(str);
}
return(meta);
}
else
{
metasize = len;
return(null);
}
}
private int ParseBlockHeader(AllocationBlock ab, byte[] b, int blocknumberexpected)
{
int bnum = Helper.ToInt32(b, 0);
if (bnum != blocknumberexpected)
{
_log.Error("Block numbers does not match, looking for : " + blocknumberexpected);
//throw new Exception("Block numbers does not match, looking for : " + blocknumberexpected);
return(-1);
}
if (b[14] != 1)
{
_log.Error("Expecting string keys only, got : " + b[14]);
//throw new Exception("Expecting string keys only, got : " + b[11]);
return(-1);
}
int next = Helper.ToInt32(b, 4);
if (ab.keylen == 0)
{
byte flags = b[8];
if ((flags & 0x01) > 0)
{
ab.isCompressed = true;
}
if ((flags & 0x02) > 0)
{
ab.isBinaryJSON = true;
}
if ((flags & 0x04) > 0)
{
ab.deleteKey = true;
}
ab.datalength = Helper.ToInt32(b, 9);
byte keylen = b[13];
ab.keylen = keylen;
ab.key = Helper.GetString(b, _blockheader.Length, keylen);
}
return(next);
}
public string GetObject(byte[] buffer, int offset, int count)
{
return(Helper.GetString(buffer, offset, (short)count));
}