private void CheckInput()
{
if (!input.HasBytes(12))
{
return;
}
int packetLength = (int)input.ReadInt32();
if (packetLength < 12)
{
logger.error("invalid packet length: {0}", packetLength);
return;
}
while (input.HasBytes(packetLength))
{
uint len = input.GetInt32();
uint seq = input.GetInt32();
byte[] packet = input.GetBytes(packetLength - 12);
int checksum = (int)input.GetInt32();
int validChecksum = input.Crc32(-packetLength, packetLength - 4);
if (checksum != validChecksum)
{
logger.warning("invalid checksum! skip");
continue;
}
try {
OnInputEvent(this, packet);
} catch (Exception ex) {
logger.error("OnReceive error {0}", ex);
}
if (input.HasBytes(4))
{
packetLength = (int)input.ReadInt32();
}
else
{
break;
}
}
}
private void CheckInput()
{
if (!input.HasBytes(12))
{
return;
}
int packetLength = (int)input.ReadInt32();
if (packetLength < 12)
{
logger.error("invalid packet length: {0}", packetLength);
return;
}
while (input.HasBytes(packetLength))
{
uint len = input.GetInt32();
uint seq = input.GetInt32();
byte[] packet = input.GetBytes(packetLength - 12);
int checksum = (int)input.GetInt32();
int validChecksum = input.Crc32(-packetLength, packetLength - 4);
if (checksum != validChecksum)
{
logger.warning("invalid checksum! skip");
continue;
}
try {
OnReceive(packet);
} catch (Exception ex) {
logger.error("OnReceive error {0}", ex);
}
if (input.HasBytes(4))
{
packetLength = (int)input.ReadInt32();
}
else
{
break;
}
}
/*
* //logger.debug("check input started");
* if (inputStream.Length < 12) {
* //logger.debug("input too short");
* return;
* }
*
* inputStream.Seek(0, SeekOrigin.Begin);
* BinaryReader binaryReader = new BinaryReader(inputStream);
* byte[] buffer = inputStream.GetBuffer();
*
* int packetLength = ReadInt(buffer, inputStream.Position);
* //logger.debug("readed packet length: {0}, buffer size: {1}", packetLength, inputStream.Length - inputStream.Position);
*
* while (inputStream.Length - inputStream.Position >= packetLength) {
* //logger.info("new packet success");
* int len = binaryReader.ReadInt32();
* int seq = binaryReader.ReadInt32();
* byte[] packet = binaryReader.ReadBytes(packetLength - 12);
* byte[] checksum = binaryReader.ReadBytes(4);
*
*
* Crc32 crc32 = new Crc32();
* byte[] validChecksum = crc32.ComputeHash(inputStream.GetBuffer(), (int)inputStream.Position - 4 - packet.Length - 8, 8 + packet.Length).Reverse().ToArray();
*
* //logger.debug("readed new network packet: len {0}, seq {1}, packet data size {2}, checksum {3}, valid checksum: {4}", len, seq, packet.Length, BitConverter.ToString(checksum).Replace("-",""), BitConverter.ToString(validChecksum).Replace("-",""));
* //logger.debug("response data: {0}", BitConverter.ToString(packet));
*
* if(!checksum.SequenceEqual(validChecksum)) {
* logger.warning("invalid checksum! skip");
* continue;
* }
*
* try {
* OnReceive(packet);
* }
* catch (Exception ex) {
* logger.error("OnReceive error {0}", ex);
* }
*
* if (inputStream.Length - inputStream.Position < 12) {
* break;
* }
*
* packetLength = ReadInt(buffer, inputStream.Position);
* }
*
* long remaining = inputStream.Length - inputStream.Position;
* if (remaining == 0) {
* inputStream.Seek(0, SeekOrigin.Begin);
* inputStream.SetLength(0);
* } else {
* //Array.Copy(buffer, (int) inputStream.Position, buffer, 0,(int) remaining);
*
* for (int i = 0; i < remaining; i++) {
* buffer[i] = buffer[inputStream.Position + i];
* }
*
*
* inputStream.SetLength(remaining);
* inputStream.Seek(0, SeekOrigin.End);
* }*/
}
