Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Data / System / Data / SqlClient / SqlClientWrapperSmiStreamChars.cs / 1 / SqlClientWrapperSmiStreamChars.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- namespace Microsoft.SqlServer.Server { using System; using System.Data.Common; using System.Data.SqlClient; using System.Data.SqlTypes; using System.Diagnostics; using System.IO; // Simple SqlStreamChars wrapper over SmiStream that handles server events on the // SqlClient side of Smi internal class SqlClientWrapperSmiStreamChars : SqlStreamChars { private SmiEventSink_Default _sink; private SmiStream _stream; internal SqlClientWrapperSmiStreamChars( SmiEventSink_Default sink, SmiStream stream ) { Debug.Assert( null != sink ); Debug.Assert( null != stream ); _sink = sink; _stream = stream; } public override bool IsNull { get { return null == _stream; } } public override bool CanRead { get { return _stream.CanRead; } } // If CanSeek is false, Position, Seek, Length, and SetLength should throw. public override bool CanSeek { get { return _stream.CanSeek; } } public override bool CanWrite { get { return _stream.CanWrite; } } public override long Length { get { long length = _stream.GetLength( _sink ); _sink.ProcessMessagesAndThrow(); if ( length > 0 ) return length / sizeof( char ); else return length; } } public override long Position { get { long position = _stream.GetPosition( _sink ) / sizeof( char ); _sink.ProcessMessagesAndThrow(); return position; } set { if ( value < 0 ) { throw ADP.ArgumentOutOfRange("Position"); } _stream.SetPosition( _sink, value * sizeof( char ) ); _sink.ProcessMessagesAndThrow(); } } public override void Flush() { _stream.Flush( _sink ); _sink.ProcessMessagesAndThrow(); } public override long Seek(long offset, SeekOrigin origin) { long result = _stream.Seek( _sink, offset * sizeof( char ), origin ); _sink.ProcessMessagesAndThrow(); return result; } public override void SetLength(long value) { if ( value < 0 ) { throw ADP.ArgumentOutOfRange("value"); } _stream.SetLength( _sink, value * sizeof( char ) ); _sink.ProcessMessagesAndThrow(); } public override int Read(char[] buffer, int offset, int count) { int bytesRead = _stream.Read( _sink, buffer, offset * sizeof( char ), count ); _sink.ProcessMessagesAndThrow(); return bytesRead; } public override void Write(char[] buffer, int offset, int count) { _stream.Write( _sink, buffer, offset, count ); _sink.ProcessMessagesAndThrow(); } // Convenience methods to allow simple pulling/pushing of raw bytes internal int Read(byte[] buffer, int offset, int count) { int bytesRead = _stream.Read( _sink, buffer, offset, count ); _sink.ProcessMessagesAndThrow(); return bytesRead; } internal void Write(byte[] buffer, int offset, int count) { _stream.Write( _sink, buffer, offset, count ); _sink.ProcessMessagesAndThrow(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DataReaderContainer.cs
- IdentityModelDictionary.cs
- LookupBindingPropertiesAttribute.cs
- MaterialGroup.cs
- Bold.cs
- DataGridViewRowsAddedEventArgs.cs
- HttpCookiesSection.cs
- ObjectComplexPropertyMapping.cs
- DictionaryChange.cs
- TrustLevelCollection.cs
- SqlUserDefinedTypeAttribute.cs
- Control.cs
- DecodeHelper.cs
- ImmutablePropertyDescriptorGridEntry.cs
- FontNamesConverter.cs
- PropertyToken.cs
- RawMouseInputReport.cs
- SelectQueryOperator.cs
- IdentityReference.cs
- PrimitiveSchema.cs
- TaiwanCalendar.cs
- GPPOINT.cs
- PassportAuthenticationEventArgs.cs
- ColorAnimationBase.cs
- Highlights.cs
- FontResourceCache.cs
- DBSchemaRow.cs
- SimpleFieldTemplateUserControl.cs
- StringComparer.cs
- Translator.cs
- SslStreamSecurityElement.cs
- WebPartEditorOkVerb.cs
- TypeConverterValueSerializer.cs
- WebBrowserDocumentCompletedEventHandler.cs
- FastPropertyAccessor.cs
- XPathArrayIterator.cs
- ProtocolViolationException.cs
- Validator.cs
- DBSchemaTable.cs
- CompilerErrorCollection.cs
- DetailsView.cs
- RetriableClipboard.cs
- DataColumn.cs
- XmlName.cs
- DispatchChannelSink.cs
- HttpMethodAttribute.cs
- SemaphoreFullException.cs
- XmlDocument.cs
- SpecialFolderEnumConverter.cs
- OperandQuery.cs
- CorruptingExceptionCommon.cs
- InvalidCommandTreeException.cs
- ByteStreamGeometryContext.cs
- Viewport3DVisual.cs
- CheckedPointers.cs
- HttpChannelListener.cs
- DrawingBrush.cs
- InvokeSchedule.cs
- MailWebEventProvider.cs
- NumericPagerField.cs
- HMAC.cs
- NotImplementedException.cs
- KeyValueConfigurationCollection.cs
- TrackingStringDictionary.cs
- _UncName.cs
- ExtensibleClassFactory.cs
- FileUpload.cs
- ImageClickEventArgs.cs
- WebConfigurationFileMap.cs
- FrameworkElementFactoryMarkupObject.cs
- MultiSelectRootGridEntry.cs
- RegexRunner.cs
- FrameworkRichTextComposition.cs
- QueryableDataSource.cs
- PlacementWorkspace.cs
- ReverseInheritProperty.cs
- InputScopeAttribute.cs
- XmlBinaryWriter.cs
- CngProvider.cs
- ErrorProvider.cs
- BuildDependencySet.cs
- XsdBuilder.cs
- ConfigXmlAttribute.cs
- AssemblyAttributesGoHere.cs
- CompilerHelpers.cs
- Dynamic.cs
- ContentDisposition.cs
- XmlILAnnotation.cs
- relpropertyhelper.cs
- ImpersonateTokenRef.cs
- OdbcDataAdapter.cs
- RunClient.cs
- WebServiceClientProxyGenerator.cs
- IndexedWhereQueryOperator.cs
- SecurityTokenTypes.cs
- OpCodes.cs
- MetadataItemEmitter.cs
- TextCollapsingProperties.cs
- RemotingServices.cs
- MemberJoinTreeNode.cs