public TCPRawClient(IPAddress remote_ip, ushort remote_port, PacketCalculateEvent calc_event, int header_size, int maxPacketSize = 64 * 1024, int outputStreamMultiply = 64, LatencyMode mode = LatencyMode.Normal)
{
remoteIp = remote_ip;
remotePort = remote_port;
_maxPacketSize = maxPacketSize;
this.mode = mode;
if (calc_event == null)
{
throw new ArgumentNullException(nameof(calc_event));
}
packetHeaderSize = header_size;
CalculatePacketSize = calc_event;
workerStarted = 0;
_outputStream = new ConcurrentMemoryStream(_maxPacketSize * outputStreamMultiply);
rcvBuff = new byte[maxPacketSize];
}
// Methods overidden from WebRequest
public override WebResponse GetResponse()
{
ConcurrentMemoryStream stream = new ConcurrentMemoryStream()
{
Blocking = true,
ReadTimeout = Timeout
};
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
CancellationToken cancellationToken = cancellationTokenSource.Token;
Task curlTask = Task.Factory.StartNew(() => {
// We shouldn't need to check if libcurl is initialized, because it's reference counted and can be called multiple times.
// However, repeated calls to curl_global_cleanup are crashing my program, so for the time being I'm not pairing it with this.
// It's up the user to call curl_global_cleanup once when they're done using it.
if (!LibCurl.IsInitialized) // Check so ref count will not be increased (only one call to curl_global_cleanup required after multiple requests)
{
LibCurl.GlobalInit();
}
try {
using (CurlEasyHandle easyHandle = LibCurl.EasyInit())
using (SList headers = new SList())
using (MemoryStream postDataStream = new MemoryStream(GetRequestStream(validateMethod: false).ToArray())) {
CurlDataCopier dataCopier = new CurlDataCopier(stream, postDataStream, cancellationToken);
dataCopier.SetCallbacks(easyHandle);
LibCurl.EasySetOpt(easyHandle, CurlOption.Url, RequestUri.AbsoluteUri);
LibCurl.EasySetOpt(easyHandle, CurlOption.FollowLocation, AllowAutoRedirect ? 1 : 0);
LibCurl.EasySetOpt(easyHandle, CurlOption.MaxRedirs, MaximumAutomaticRedirections);
LibCurl.EasySetOpt(easyHandle, CurlOption.Timeout, Timeout);
LibCurl.EasySetOpt(easyHandle, CurlOption.HttpVersion, (int)GetHttpVersion());
if (AutomaticDecompression != DecompressionMethods.None)
{
LibCurl.EasySetOpt(easyHandle, CurlOption.AcceptEncoding, GetAcceptEncoding());
}
LibCurl.EasySetOpt(easyHandle, CurlOption.TcpKeepAlive, KeepAlive ? 1 : 0);
if (File.Exists(LibCurl.CABundlePath))
{
LibCurl.EasySetOpt(easyHandle, CurlOption.CaInfo, LibCurl.CABundlePath);
}
SetCookies(easyHandle);
SetCredentials(easyHandle);
SetHeaders(easyHandle, headers);
SetMethod(easyHandle);
SetProxy(easyHandle);
// Execute the request.
LibCurl.EasyPerform(easyHandle);
}
}
finally {
// Close the stream to indicate that we're done writing to it, unblocking readers.
stream.Close();
//LibCurl.GlobalCleanup();
}
}, cancellationToken);
HaveResponse = true;
return(new LibCurlHttpWebResponse(this, stream, cancellationTokenSource));
}
