2015-04-07 09:35:12 +01:00
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//
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// Socket.cs
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//
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// Author:
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// Martin Baulig <martin.baulig@xamarin.com>
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//
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// Copyright (c) 2015 Xamarin Inc. (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.IO;
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namespace System.Net.Sockets
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{
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partial class Socket
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{
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internal const int DefaultCloseTimeout = -1;
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// don't change for default, otherwise breaking change
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// this version does not throw.
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internal void InternalShutdown (SocketShutdown how)
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{
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2015-08-26 07:17:56 -04:00
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if (!is_connected || is_disposed)
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2015-04-07 09:35:12 +01:00
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return;
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int error;
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2015-08-26 07:17:56 -04:00
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Shutdown_internal (safe_handle, how, out error);
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2015-04-07 09:35:12 +01:00
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}
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internal IAsyncResult UnsafeBeginConnect (EndPoint remoteEP, AsyncCallback callback, object state)
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{
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return BeginConnect (remoteEP, callback, state);
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}
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internal IAsyncResult UnsafeBeginSend (byte[] buffer, int offset, int size, SocketFlags socketFlags, AsyncCallback callback, object state)
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{
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return BeginSend (buffer, offset, size, socketFlags, callback, state);
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}
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internal IAsyncResult UnsafeBeginReceive (byte[] buffer, int offset, int size, SocketFlags socketFlags, AsyncCallback callback, object state)
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{
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return BeginReceive (buffer, offset, size, socketFlags, callback, state);
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}
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internal IAsyncResult BeginMultipleSend (BufferOffsetSize[] buffers, SocketFlags socketFlags, AsyncCallback callback, object state)
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{
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var segments = new ArraySegment<byte> [buffers.Length];
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for (int i = 0; i < buffers.Length; i++)
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segments [i] = new ArraySegment<byte> (buffers [i].Buffer, buffers [i].Offset, buffers [i].Size);
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return BeginSend (segments, socketFlags, callback, state);
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}
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internal IAsyncResult UnsafeBeginMultipleSend (BufferOffsetSize[] buffers, SocketFlags socketFlags, AsyncCallback callback, object state)
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{
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return BeginMultipleSend (buffers, socketFlags, callback, state);
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}
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internal int EndMultipleSend (IAsyncResult asyncResult)
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{
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return EndSend (asyncResult);
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}
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internal void MultipleSend (BufferOffsetSize[] buffers, SocketFlags socketFlags)
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{
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var segments = new ArraySegment<byte> [buffers.Length];
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for (int i = 0; i < buffers.Length; i++)
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segments [i] = new ArraySegment<byte> (buffers [i].Buffer, buffers [i].Offset, buffers [i].Size);
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Send (segments, socketFlags);
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}
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internal void SetSocketOption (SocketOptionLevel optionLevel, SocketOptionName optionName, int optionValue, bool silent)
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{
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2015-08-26 07:17:56 -04:00
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if (is_disposed && is_closed) {
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2015-04-07 09:35:12 +01:00
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if (silent)
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return;
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throw new ObjectDisposedException (GetType ().ToString ());
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}
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int error;
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2015-08-26 07:17:56 -04:00
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SetSocketOption_internal (safe_handle, optionLevel, optionName, null,
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2015-04-07 09:35:12 +01:00
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null, optionValue, out error);
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if (!silent && error != 0)
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throw new SocketException (error);
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}
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2016-11-10 13:04:39 +00:00
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internal bool CanTryAddressFamily (AddressFamily family)
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{
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return (family == address_family) || (family == AddressFamily.InterNetwork && IsDualMode);
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}
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public static bool ConnectAsync(SocketType socketType, ProtocolType protocolType, SocketAsyncEventArgs e) {
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bool retval;
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// Throw if multiple buffers specified.
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if (e.m_BufferList != null) {
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throw new ArgumentException(SR.GetString(SR.net_multibuffernotsupported), "BufferList");
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}
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// Throw if RemoteEndPoint is null.
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if (e.RemoteEndPoint == null) {
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throw new ArgumentNullException("remoteEP");
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}
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EndPoint endPointSnapshot = e.RemoteEndPoint;
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DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;
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if (dnsEP != null) {
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Socket attemptSocket = null;
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MultipleConnectAsync multipleConnectAsync = null;
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if (dnsEP.AddressFamily == AddressFamily.Unspecified) {
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multipleConnectAsync = new MultipleSocketMultipleConnectAsync(socketType, protocolType);
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} else {
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attemptSocket = new Socket(dnsEP.AddressFamily, socketType, protocolType);
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multipleConnectAsync = new SingleSocketMultipleConnectAsync(attemptSocket, false);
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}
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e.StartOperationCommon(attemptSocket);
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e.StartOperationWrapperConnect(multipleConnectAsync);
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retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
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} else {
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Socket attemptSocket = new Socket(endPointSnapshot.AddressFamily, socketType, protocolType);
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retval = attemptSocket.ConnectAsync(e);
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}
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return retval;
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}
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2015-04-07 09:35:12 +01:00
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}
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}
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