Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / 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. // //[....] //[....] //----------------------------------------------------------------------------- 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.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SoapMessage.cs
- TemplatePropertyEntry.cs
- ResolvedKeyFrameEntry.cs
- DatasetMethodGenerator.cs
- OrderToken.cs
- OptimizedTemplateContent.cs
- SessionState.cs
- WindowPatternIdentifiers.cs
- Roles.cs
- SystemIcmpV4Statistics.cs
- StickyNoteHelper.cs
- ConnectionStringsExpressionBuilder.cs
- basecomparevalidator.cs
- DataGridTableCollection.cs
- GridErrorDlg.cs
- UnknownExceptionActionHelper.cs
- DbProviderServices.cs
- BuildManagerHost.cs
- RectangleGeometry.cs
- DesignerLoader.cs
- TextEditorParagraphs.cs
- NestPullup.cs
- MimeObjectFactory.cs
- EncryptedData.cs
- Zone.cs
- EncryptedKeyIdentifierClause.cs
- ProviderSettings.cs
- GeometryDrawing.cs
- WsiProfilesElementCollection.cs
- XamlSerializationHelper.cs
- SingleTagSectionHandler.cs
- DeploymentExceptionMapper.cs
- TableLayout.cs
- LOSFormatter.cs
- SoapExtensionTypeElementCollection.cs
- DBPropSet.cs
- BlurBitmapEffect.cs
- Configuration.cs
- StorageRoot.cs
- SqlUtils.cs
- DataGridViewElement.cs
- CodeTypeConstructor.cs
- SQLInt32.cs
- DataProtection.cs
- PreProcessInputEventArgs.cs
- Connector.cs
- StringWriter.cs
- ProviderManager.cs
- DataColumnMappingCollection.cs
- AxDesigner.cs
- DataObjectPastingEventArgs.cs
- ZipIOModeEnforcingStream.cs
- NetworkStream.cs
- Process.cs
- XmlIterators.cs
- HtmlElement.cs
- ProviderConnectionPointCollection.cs
- AssociatedControlConverter.cs
- AgileSafeNativeMemoryHandle.cs
- EditCommandColumn.cs
- PropertyGridView.cs
- ConcatQueryOperator.cs
- PartBasedPackageProperties.cs
- CustomLineCap.cs
- UserPreferenceChangedEventArgs.cs
- SqlInfoMessageEvent.cs
- ChannelBinding.cs
- IndicFontClient.cs
- PriorityQueue.cs
- ComAwareEventInfo.cs
- ButtonBaseAutomationPeer.cs
- ServiceBehaviorAttribute.cs
- JobStaple.cs
- HtmlToClrEventProxy.cs
- Utilities.cs
- InstanceDataCollectionCollection.cs
- tooltip.cs
- AppModelKnownContentFactory.cs
- TcpProcessProtocolHandler.cs
- ListViewCommandEventArgs.cs
- PrintPreviewControl.cs
- FixedPageProcessor.cs
- ValidatorUtils.cs
- SchemaTypeEmitter.cs
- DiscoveryReference.cs
- PackagingUtilities.cs
- DeploymentSectionCache.cs
- XmlHelper.cs
- DynamicRenderer.cs
- HtmlInputButton.cs
- DecimalConverter.cs
- PropertyGridEditorPart.cs
- ThrowHelper.cs
- DynamicDocumentPaginator.cs
- UniqueConstraint.cs
- SqlBooleanizer.cs
- adornercollection.cs
- DecimalConstantAttribute.cs
- DataGridViewAdvancedBorderStyle.cs
- NotCondition.cs