public static bool ConnectAsync(SocketType socketType, ProtocolType protocolType, SocketAsyncEventArgs e)
{
bool retval;
// Throw if multiple buffers specified.
if (e.m_BufferList != null)
{
throw new ArgumentException(SR.GetString(SR.net_multibuffernotsupported), "BufferList");
}
// Throw if RemoteEndPoint is null.
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("remoteEP");
}
EndPoint endPointSnapshot = e.RemoteEndPoint;
DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;
if (dnsEP != null)
{
Socket attemptSocket = null;
MultipleConnectAsync multipleConnectAsync = null;
if (dnsEP.AddressFamily == AddressFamily.Unspecified)
{
multipleConnectAsync = new MultipleSocketMultipleConnectAsync(socketType, protocolType);
}
else
{
attemptSocket = new Socket(dnsEP.AddressFamily, socketType, protocolType);
multipleConnectAsync = new SingleSocketMultipleConnectAsync(attemptSocket, false);
}
e.StartOperationCommon(attemptSocket);
e.StartOperationWrapperConnect(multipleConnectAsync);
retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
}
else
{
Socket attemptSocket = new Socket(endPointSnapshot.AddressFamily, socketType, protocolType);
retval = attemptSocket.ConnectAsync(e);
}
return(retval);
}
public static bool ConnectAsync(SocketType socketType, ProtocolType protocolType, SocketAsyncEventArgs e)
{
bool retval;
if (s_loggingEnabled)
{
Logging.Enter(Logging.Sockets, null, "ConnectAsync", "");
}
if (e == null)
{
throw new ArgumentNullException("e");
}
if (e._bufferList != null)
{
throw new ArgumentException(SR.net_multibuffernotsupported, "BufferList");
}
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("remoteEP");
}
EndPoint endPointSnapshot = e.RemoteEndPoint;
DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;
if (dnsEP != null)
{
Socket attemptSocket = null;
MultipleConnectAsync multipleConnectAsync = null;
if (dnsEP.AddressFamily == AddressFamily.Unspecified)
{
// Disable CS0162 and CS0429: Unreachable code detected
//
// SuportsMultipleConnectAttempts is a constant; when false, the following lines will trigger CS0162 or CS0429.
#pragma warning disable 162, 429
multipleConnectAsync = SocketPal.SupportsMultipleConnectAttempts ?
(MultipleConnectAsync)(new DualSocketMultipleConnectAsync(socketType, protocolType)) :
(MultipleConnectAsync)(new MultipleSocketMultipleConnectAsync(socketType, protocolType));
#pragma warning restore
}
else
{
attemptSocket = new Socket(dnsEP.AddressFamily, socketType, protocolType);
multipleConnectAsync = new SingleSocketMultipleConnectAsync(attemptSocket, false);
}
e.StartOperationCommon(attemptSocket);
e.StartOperationWrapperConnect(multipleConnectAsync);
retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
}
else
{
Socket attemptSocket = new Socket(endPointSnapshot.AddressFamily, socketType, protocolType);
retval = attemptSocket.ConnectAsync(e);
}
if (s_loggingEnabled)
{
Logging.Exit(Logging.Sockets, null, "ConnectAsync", retval);
}
return retval;
}
public bool ConnectAsync(SocketAsyncEventArgs e)
{
bool retval;
if (s_loggingEnabled)
{
Logging.Enter(Logging.Sockets, this, "ConnectAsync", "");
}
if (CleanedUp)
{
throw new ObjectDisposedException(GetType().FullName);
}
if (e == null)
{
throw new ArgumentNullException("e");
}
if (e._bufferList != null)
{
throw new ArgumentException(SR.net_multibuffernotsupported, "BufferList");
}
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("remoteEP");
}
if (_isListening)
{
throw new InvalidOperationException(SR.net_sockets_mustnotlisten);
}
// Check permissions for connect and prepare SocketAddress.
EndPoint endPointSnapshot = e.RemoteEndPoint;
DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;
if (dnsEP != null)
{
if (s_loggingEnabled)
{
Logging.PrintInfo(Logging.Sockets, "Socket#" + Logging.HashString(this) + "::ConnectAsync " + SR.net_log_socket_connect_dnsendpoint);
}
if (dnsEP.AddressFamily != AddressFamily.Unspecified && !CanTryAddressFamily(dnsEP.AddressFamily))
{
throw new NotSupportedException(SR.net_invalidversion);
}
MultipleConnectAsync multipleConnectAsync = new SingleSocketMultipleConnectAsync(this, true);
e.StartOperationCommon(this);
e.StartOperationWrapperConnect(multipleConnectAsync);
retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
}
else
{
// Throw if remote address family doesn't match socket.
if (!CanTryAddressFamily(e.RemoteEndPoint.AddressFamily))
{
throw new NotSupportedException(SR.net_invalidversion);
}
e._socketAddress = CheckCacheRemote(ref endPointSnapshot, false);
// Do wildcard bind if socket not bound.
if (_rightEndPoint == null)
{
if (endPointSnapshot.AddressFamily == AddressFamily.InterNetwork)
{
InternalBind(new IPEndPoint(IPAddress.Any, 0));
}
else
{
InternalBind(new IPEndPoint(IPAddress.IPv6Any, 0));
}
}
// Save the old RightEndPoint and prep new RightEndPoint.
EndPoint oldEndPoint = _rightEndPoint;
if (_rightEndPoint == null)
{
_rightEndPoint = endPointSnapshot;
}
// Prepare for the native call.
e.StartOperationCommon(this);
e.StartOperationConnect();
// Make the native call.
int bytesTransferred;
SocketError socketError = SocketError.Success;
try
{
socketError = e.DoOperationConnect(this, _handle, out bytesTransferred);
}
catch (Exception ex)
{
_rightEndPoint = oldEndPoint;
// Clear in-use flag on event args object.
e.Complete();
throw ex;
}
// Handle failure where completion port is not posted.
if (socketError != SocketError.Success && socketError != SocketError.IOPending)
{
e.FinishOperationSyncFailure(socketError, bytesTransferred, SocketFlags.None);
retval = false;
}
else
{
retval = true;
}
}
if (s_loggingEnabled)
{
Logging.Exit(Logging.Sockets, this, "ConnectAsync", retval);
}
return retval;
}
public static bool ConnectAsync(SocketType socketType, ProtocolType protocolType, SocketAsyncEventArgs e) {
bool retval;
if (s_LoggingEnabled) Logging.Enter(Logging.Sockets, null, "ConnectAsync", "");
// Throw if multiple buffers specified.
if (e.m_BufferList != null) {
throw new ArgumentException(SR.GetString(SR.net_multibuffernotsupported), "BufferList");
}
// Throw if RemoteEndPoint is null.
if (e.RemoteEndPoint == null) {
throw new ArgumentNullException("remoteEP");
}
EndPoint endPointSnapshot = e.RemoteEndPoint;
DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;
if (dnsEP != null) {
Socket attemptSocket = null;
MultipleConnectAsync multipleConnectAsync = null;
if (dnsEP.AddressFamily == AddressFamily.Unspecified) {
multipleConnectAsync = new MultipleSocketMultipleConnectAsync(socketType, protocolType);
} else {
attemptSocket = new Socket(dnsEP.AddressFamily, socketType, protocolType);
multipleConnectAsync = new SingleSocketMultipleConnectAsync(attemptSocket, false);
}
e.StartOperationCommon(attemptSocket);
e.StartOperationWrapperConnect(multipleConnectAsync);
retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
} else {
Socket attemptSocket = new Socket(endPointSnapshot.AddressFamily, socketType, protocolType);
retval = attemptSocket.ConnectAsync(e);
}
if (s_LoggingEnabled) Logging.Exit(Logging.Sockets, null, "ConnectAsync", retval);
return retval;
}
public static bool ConnectAsync(SocketType socketType, ProtocolType protocolType, SocketAsyncEventArgs e)
{
bool retval;
if (s_loggingEnabled)
{
NetEventSource.Enter(NetEventSource.ComponentType.Socket, null, nameof(ConnectAsync), "");
}
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
if (e._bufferList != null)
{
throw new ArgumentException(SR.net_multibuffernotsupported, "BufferList");
}
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("remoteEP");
}
EndPoint endPointSnapshot = e.RemoteEndPoint;
DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;
if (dnsEP != null)
{
Socket attemptSocket = null;
MultipleConnectAsync multipleConnectAsync = null;
if (dnsEP.AddressFamily == AddressFamily.Unspecified)
{
// Disable CS0162 and CS0429: Unreachable code detected
//
// SuportsMultipleConnectAttempts is a constant; when false, the following lines will trigger CS0162 or CS0429.
//
// This is the only *Connect* API that actually supports multiple endpoint attempts, as it's responsible
// for creating each Socket instance and can create one per attempt (with the instance methods, once a
// connect fails, on unix systems that socket can't be used for subsequent connect attempts).
#pragma warning disable 162, 429
multipleConnectAsync = SocketPal.SupportsMultipleConnectAttempts ?
(MultipleConnectAsync)(new DualSocketMultipleConnectAsync(socketType, protocolType)) :
(MultipleConnectAsync)(new MultipleSocketMultipleConnectAsync(socketType, protocolType));
#pragma warning restore
}
else
{
attemptSocket = new Socket(dnsEP.AddressFamily, socketType, protocolType);
multipleConnectAsync = new SingleSocketMultipleConnectAsync(attemptSocket, false);
}
e.StartOperationCommon(attemptSocket);
e.StartOperationWrapperConnect(multipleConnectAsync);
retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
}
else
{
Socket attemptSocket = new Socket(endPointSnapshot.AddressFamily, socketType, protocolType);
retval = attemptSocket.ConnectAsync(e);
}
if (s_loggingEnabled)
{
NetEventSource.Exit(NetEventSource.ComponentType.Socket, null, nameof(ConnectAsync), retval);
}
return retval;
}
public static bool ConnectAsync(System.Net.Sockets.SocketType socketType, System.Net.Sockets.ProtocolType protocolType, SocketAsyncEventArgs e)
{
bool flag;
if (s_LoggingEnabled)
{
Logging.Enter(Logging.Sockets, (string) null, "ConnectAsync", "");
}
if (e.m_BufferList != null)
{
throw new ArgumentException(SR.GetString("net_multibuffernotsupported"), "BufferList");
}
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("remoteEP");
}
EndPoint remoteEndPoint = e.RemoteEndPoint;
DnsEndPoint endPoint = remoteEndPoint as DnsEndPoint;
if (endPoint != null)
{
Socket socket = null;
MultipleConnectAsync args = null;
if (endPoint.AddressFamily == System.Net.Sockets.AddressFamily.Unspecified)
{
args = new MultipleSocketMultipleConnectAsync(socketType, protocolType);
}
else
{
socket = new Socket(endPoint.AddressFamily, socketType, protocolType);
args = new SingleSocketMultipleConnectAsync(socket, false);
}
e.StartOperationCommon(socket);
e.StartOperationWrapperConnect(args);
flag = args.StartConnectAsync(e, endPoint);
}
else
{
flag = new Socket(remoteEndPoint.AddressFamily, socketType, protocolType).ConnectAsync(e);
}
if (s_LoggingEnabled)
{
Logging.Exit(Logging.Sockets, (string) null, "ConnectAsync", flag);
}
return flag;
}
public bool ConnectAsync(SocketAsyncEventArgs e)
{
bool flag;
if (s_LoggingEnabled)
{
Logging.Enter(Logging.Sockets, this, "ConnectAsync", "");
}
if (this.CleanedUp)
{
throw new ObjectDisposedException(base.GetType().FullName);
}
if (e.m_BufferList != null)
{
throw new ArgumentException(SR.GetString("net_multibuffernotsupported"), "BufferList");
}
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("remoteEP");
}
if (this.isListening)
{
throw new InvalidOperationException(SR.GetString("net_sockets_mustnotlisten"));
}
EndPoint remoteEndPoint = e.RemoteEndPoint;
DnsEndPoint endPoint = remoteEndPoint as DnsEndPoint;
if (endPoint != null)
{
if (s_LoggingEnabled)
{
Logging.PrintInfo(Logging.Sockets, "Socket#" + ValidationHelper.HashString(this) + "::ConnectAsync Connecting to a DnsEndPoint");
}
if ((endPoint.AddressFamily != System.Net.Sockets.AddressFamily.Unspecified) && (endPoint.AddressFamily != this.addressFamily))
{
throw new NotSupportedException(SR.GetString("net_invalidversion"));
}
MultipleConnectAsync args = new SingleSocketMultipleConnectAsync(this, true);
e.StartOperationCommon(this);
e.StartOperationWrapperConnect(args);
flag = args.StartConnectAsync(e, endPoint);
}
else
{
int num;
if (this.addressFamily != e.RemoteEndPoint.AddressFamily)
{
throw new NotSupportedException(SR.GetString("net_invalidversion"));
}
e.m_SocketAddress = this.CheckCacheRemote(ref remoteEndPoint, false);
if (this.m_RightEndPoint == null)
{
if (remoteEndPoint.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
this.InternalBind(new IPEndPoint(IPAddress.Any, 0));
}
else
{
this.InternalBind(new IPEndPoint(IPAddress.IPv6Any, 0));
}
}
EndPoint rightEndPoint = this.m_RightEndPoint;
if (this.m_RightEndPoint == null)
{
this.m_RightEndPoint = remoteEndPoint;
}
e.StartOperationCommon(this);
e.StartOperationConnect();
this.BindToCompletionPort();
SocketError success = SocketError.Success;
try
{
if (!this.ConnectEx(this.m_Handle, e.m_PtrSocketAddressBuffer, e.m_SocketAddress.m_Size, e.m_PtrSingleBuffer, e.Count, out num, e.m_PtrNativeOverlapped))
{
success = (SocketError) Marshal.GetLastWin32Error();
}
}
catch (Exception exception)
{
this.m_RightEndPoint = rightEndPoint;
e.Complete();
throw exception;
}
if ((success != SocketError.Success) && (success != SocketError.IOPending))
{
e.FinishOperationSyncFailure(success, num, SocketFlags.None);
flag = false;
}
else
{
flag = true;
}
}
if (s_LoggingEnabled)
{
Logging.Exit(Logging.Sockets, this, "ConnectAsync", flag);
}
return flag;
}
