public MstRecord ReadRecord2
(
long offset
)
{
if (_stream.Seek(offset, SeekOrigin.Begin) != offset)
{
throw new IOException();
}
Encoding encoding = new UTF8Encoding(false, true);
MemoryStream memory = new MemoryStream(PreloadLength);
_AppendStream(_stream, memory, PreloadLength);
memory.Position = 0;
MstRecordLeader leader = MstRecordLeader.Read(memory);
int amountToRead = (int)(leader.Length - memory.Length);
if (amountToRead > 0)
{
_AppendStream(_stream, memory, amountToRead);
}
List <MstDictionaryEntry> dictionary
= new List <MstDictionaryEntry>();
for (int i = 0; i < leader.Nvf; i++)
{
MstDictionaryEntry entry = new MstDictionaryEntry
{
Tag = memory.ReadInt32Network(),
Position = memory.ReadInt32Network(),
Length = memory.ReadInt32Network()
};
dictionary.Add(entry);
}
foreach (MstDictionaryEntry entry in dictionary)
{
long endOffset = leader.Base + entry.Position;
memory.Seek(endOffset, SeekOrigin.Begin);
entry.Bytes = memory.ReadBytes(entry.Length);
if (entry.Bytes != null)
{
entry.Text = encoding.GetString(entry.Bytes);
}
}
MstRecord result = new MstRecord
{
Leader = leader,
Dictionary = dictionary
};
return(result);
}
public MstRecord ReadRecord(long offset)
{
if (_stream.Seek(offset, SeekOrigin.Begin) != offset)
{
throw new IOException();
}
//new ObjectDumper()
// .DumpStream(_stream,offset,64)
// .WriteLine();
Encoding encoding = new UTF8Encoding(false, true);
MstRecordLeader leader = MstRecordLeader.Read(_stream);
List <MstDictionaryEntry> dictionary
= new List <MstDictionaryEntry> ();
for (int i = 0; i < leader.Nvf; i++)
{
MstDictionaryEntry entry = new MstDictionaryEntry
{
Tag = _stream.ReadInt32Network(),
Position = _stream.ReadInt32Network(),
Length = _stream.ReadInt32Network()
};
dictionary.Add(entry);
}
foreach (MstDictionaryEntry entry in dictionary)
{
long endOffset = offset + leader.Base + entry.Position;
_stream.Seek(endOffset, SeekOrigin.Begin);
entry.Bytes = _stream.ReadBytes(entry.Length);
if (entry.Bytes != null)
{
entry.Text = encoding.GetString(entry.Bytes);
}
}
MstRecord result = new MstRecord
{
Leader = leader,
Dictionary = dictionary
};
return(result);
}
public static MstRecordLeader Read(Stream stream)
{
MstRecordLeader result = new MstRecordLeader
{
Mfn = stream.ReadInt32Network(),
Length = stream.ReadInt32Network(),
Previous = stream.ReadInt64Network(),
Base = stream.ReadInt32Network(),
Nvf = stream.ReadInt32Network(),
Version = stream.ReadInt32Network(),
Status = stream.ReadInt32Network()
};
Debug.Assert(result.Base ==
(LeaderSize + result.Nvf * MstDictionaryEntry.EntrySize));
return(result);
}