internal static ulong IPPort2Long(string _ip, int _port)
{
byte[] _buffer = new byte[8];
ushort[] ipChunks = new ushort[4];
string[] chunks = _ip.Split('.');
if (chunks.Length == 4)
{
for (int i = 0; i < 4; i++)
{
ipChunks[i] = ushort.Parse(chunks[i]);
}
}
// IP 4
for (int i = 0; i < 4; i++)
{
_buffer[i] = (byte)ipChunks[i];
}
// Port 4
HelperTools.Int32Bytes(_buffer, 4, _port);
return(BitConverter.ToUInt64(_buffer, 0));
}
private void WriteIdx()
{
// Write index
HelperTools.Int32Bytes(idxBuffer, 0, secTime);
HelperTools.Long2Bytes(idxBuffer, 4, file.Position);
idxFile.Write(idxBuffer, 0, HelperTools.idxIndexSize);
}
private void FillHeader(long _time, string _ID, int _size, byte[] _buffer, ushort[] ipChunks, int _port)
{
// Time 8
HelperTools.Long2Bytes(_buffer, 0, _time);
// Hashed ID 4
HelperTools.Int32Bytes(_buffer, 8, HelperTools.GetDeterministicHashCode(_ID));
// IP 4
for (int i = 0; i < 4; i++)
{
_buffer[12 + i] = (byte)ipChunks[i];
}
// Port 4
HelperTools.Int32Bytes(_buffer, 16, _port);
// Size 4
HelperTools.Int32Bytes(_buffer, 20, _size);
}
private void FillIDXHeader(FileStream _idxFile)
{
byte[] idxHeader = new byte[4096];
int i = 0;
// Write idx Header
// Time of recording
i += HelperTools.Long2Bytes(idxHeader, i, HelperTools.millisFromEpochNow());
// Interval
i += HelperTools.Int32Bytes(idxHeader, i, secsIdxInterval);
// Number of peers
i += HelperTools.Int32Bytes(idxHeader, i, udpListeners.Count);
foreach (RecPeerInfo p in udpListeners.Values)
{
i += HelperTools.StringWithLength2Bytes(idxHeader, i, p.ID);
i += HelperTools.StringWithLength2Bytes(idxHeader, i, p.IP);
i += HelperTools.Int32Bytes(idxHeader, i, p.Port);
}
idxFile.Write(idxHeader, 0, i);
}
