Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / ManagedLibraries / Remoting / Channels / CORE / SocketStream.cs / 1305376 / SocketStream.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== //========================================================================== // File: SocketStream.cs // // Summary: Stream used for reading from a socket by remoting channels. // //========================================================================= using System; using System.IO; using System.Runtime.Remoting; using System.Net; using System.Net.Sockets; namespace System.Runtime.Remoting.Channels { // Basically the same as NetworkStream, but adds support for timeouts. internal sealed class SocketStream : Stream { private Socket _socket; private int _timeout = 0; // throw timout exception if a read takes longer than this many milliseconds // as per http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b201213 // we shouldn't write more than 64K synchronously to a socket const int maxSocketWrite = 64 * 1024; // 64k const int maxSocketRead = 4 * 1024 * 1024; // 4 MB public SocketStream(Socket socket) { if (socket == null) throw new ArgumentNullException("socket"); _socket = socket; } // SocketStream // Stream implementation public override bool CanRead { get { return true; } } public override bool CanSeek { get { return false; } } public override bool CanWrite { get { return true; } } public override long Length { get { throw new NotSupportedException(); } } public override long Position { get { throw new NotSupportedException(); } set { throw new NotSupportedException(); } } // Position public override long Seek(long offset, SeekOrigin origin) { throw new NotSupportedException(); } public override int Read(byte[] buffer, int offset, int size) { if (_timeout <= 0) { return _socket.Receive(buffer, offset, Math.Min(size, maxSocketRead), SocketFlags.None); } else { IAsyncResult ar = _socket.BeginReceive(buffer, offset, Math.Min(size, maxSocketRead), SocketFlags.None, null, null); if (_timeout>0 && !ar.IsCompleted) { ar.AsyncWaitHandle.WaitOne(_timeout, false); if (!ar.IsCompleted) throw new RemotingTimeoutException(); } return _socket.EndReceive(ar); } } // Read public override void Write(byte[] buffer, int offset, int count) { int bytesToWrite = count; while (bytesToWrite > 0) { count = Math.Min(bytesToWrite, maxSocketWrite); _socket.Send(buffer, offset, count, SocketFlags.None); bytesToWrite -= count; offset += count; } } // Write protected override void Dispose(bool disposing) { try { if (disposing) _socket.Close(); } finally { base.Dispose(disposing); } } public override void Flush() {} public override IAsyncResult BeginRead( byte[] buffer, int offset, int size, AsyncCallback callback, Object state) { IAsyncResult asyncResult = _socket.BeginReceive( buffer, offset, Math.Min(size, maxSocketRead), SocketFlags.None, callback, state); return asyncResult; } // BeginRead public override int EndRead(IAsyncResult asyncResult) { return _socket.EndReceive(asyncResult); } // EndRead public override IAsyncResult BeginWrite( byte[] buffer, int offset, int size, AsyncCallback callback, Object state) { IAsyncResult asyncResult = _socket.BeginSend( buffer, offset, size, SocketFlags.None, callback, state); return asyncResult; } // BeginWrite public override void EndWrite(IAsyncResult asyncResult) { _socket.EndSend(asyncResult); } // EndWrite public override void SetLength(long value) { throw new NotSupportedException(); } } // class SocketStream } // namespace System.Runtime.Remoting.Channels // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Module.cs
- SiteMapNodeCollection.cs
- GridLengthConverter.cs
- XmlText.cs
- UnionExpr.cs
- ProviderSettings.cs
- DocumentApplicationJournalEntry.cs
- ExpressionBuilder.cs
- WebPartEditorApplyVerb.cs
- Socket.cs
- SynchronizedInputProviderWrapper.cs
- X509CertificateRecipientServiceCredential.cs
- X509Certificate.cs
- DataGridViewElement.cs
- WebBrowserBase.cs
- DetailsViewActionList.cs
- TypeInfo.cs
- CommandBindingCollection.cs
- SecurityRuntime.cs
- Resources.Designer.cs
- Types.cs
- XmlSchemaComplexContentExtension.cs
- ProjectionCamera.cs
- ObjectRef.cs
- SmtpLoginAuthenticationModule.cs
- SessionStateItemCollection.cs
- StateDesigner.CommentLayoutGlyph.cs
- ImageCodecInfo.cs
- AuthorizationSection.cs
- GetPageCompletedEventArgs.cs
- PreservationFileWriter.cs
- GPPOINT.cs
- JsonWriterDelegator.cs
- ScaleTransform.cs
- WebRequestModuleElementCollection.cs
- CacheMemory.cs
- WindowsToolbarAsMenu.cs
- FlowLayout.cs
- TaiwanCalendar.cs
- TextSerializer.cs
- ThreadExceptionEvent.cs
- ExchangeUtilities.cs
- objectresult_tresulttype.cs
- WebPartCatalogCloseVerb.cs
- InputMethodStateChangeEventArgs.cs
- UnsafeNativeMethods.cs
- SecurityPolicySection.cs
- DataControlButton.cs
- DllNotFoundException.cs
- DataGridRowDetailsEventArgs.cs
- ObjectDataSourceView.cs
- GuidelineSet.cs
- DefaultTraceListener.cs
- QilScopedVisitor.cs
- PaperSize.cs
- ConfigurationPropertyCollection.cs
- DataGridViewLayoutData.cs
- TableRowCollection.cs
- Empty.cs
- ViewgenGatekeeper.cs
- WSDualHttpBinding.cs
- DataTablePropertyDescriptor.cs
- FactoryGenerator.cs
- PasswordTextContainer.cs
- TextTreeInsertElementUndoUnit.cs
- CategoryNameCollection.cs
- WrapperSecurityCommunicationObject.cs
- XmlTextAttribute.cs
- UDPClient.cs
- TreeViewEvent.cs
- UdpReplyToBehavior.cs
- AdditionalEntityFunctions.cs
- RTTrackingProfile.cs
- StrokeFIndices.cs
- NonSerializedAttribute.cs
- AutomationPatternInfo.cs
- Int16KeyFrameCollection.cs
- TextFormatter.cs
- OracleSqlParser.cs
- EntityTypeEmitter.cs
- RMPermissions.cs
- securitymgrsite.cs
- EventLogInformation.cs
- WebPageTraceListener.cs
- _RequestCacheProtocol.cs
- DynamicObject.cs
- RemotingAttributes.cs
- HttpProfileBase.cs
- ValueQuery.cs
- ICspAsymmetricAlgorithm.cs
- TransformValueSerializer.cs
- TailPinnedEventArgs.cs
- ToolStripControlHost.cs
- GradientStop.cs
- DateTimeOffsetConverter.cs
- WinInet.cs
- ECDiffieHellmanCngPublicKey.cs
- SmtpDigestAuthenticationModule.cs
- ErrorFormatterPage.cs
- CodeLabeledStatement.cs