public bool Parse()
{
if (this.isOK)
{
return(true);
}
bool finish = false;
while (!finish)
{
switch (this.state)
{
case ParserState.PacketSize:
if (this.buffer.Length < 2)
{
finish = true;
}
else
{
this.buffer.Read(this.packet.Bytes, 0, 2);
this.packetSize = BytesHelper.ToUInt16(this.packet.Bytes, 0);
if (packetSize > 60000)
{
throw new Exception($"packet too large, size: {this.packetSize}");
}
this.state = ParserState.PacketBody;
}
break;
case ParserState.PacketBody:
if (this.buffer.Length < this.packetSize)
{
finish = true;
}
else
{
this.buffer.Read(this.packet.Bytes, 0, this.packetSize);
this.packet.Length = this.packetSize;
this.isOK = true;
this.state = ParserState.PacketSize;
finish = true;
}
break;
}
}
return(this.isOK);
}