Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Sys / System / IO / compression / GZipStream.cs / 1 / GZipStream.cs
namespace System.IO.Compression { using System.IO; using System.Diagnostics; using System.Security.Permissions; public class GZipStream : Stream { private DeflateStream deflateStream; public GZipStream(Stream stream, CompressionMode mode) : this( stream, mode, false) { } public GZipStream(Stream stream, CompressionMode mode, bool leaveOpen) { deflateStream = new DeflateStream(stream, mode, leaveOpen, true); } public override bool CanRead { get { if( deflateStream == null) { return false; } return deflateStream.CanRead; } } public override bool CanWrite { get { if( deflateStream == null) { return false; } return deflateStream.CanWrite; } } public override bool CanSeek { get { if( deflateStream == null) { return false; } return deflateStream.CanSeek; } } public override long Length { get { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } } public override long Position { get { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } set { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } } public override void Flush() { if( deflateStream == null) { throw new ObjectDisposedException(null, SR.GetString(SR.ObjectDisposed_StreamClosed)); } deflateStream.Flush(); return; } public override long Seek(long offset, SeekOrigin origin) { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } public override void SetLength(long value) { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } [HostProtection(ExternalThreading=true)] public override IAsyncResult BeginRead(byte[] array, int offset, int count, AsyncCallback asyncCallback, object asyncState) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.BeginRead(array, offset, count, asyncCallback, asyncState); } public override int EndRead(IAsyncResult asyncResult) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.EndRead(asyncResult); } [HostProtection(ExternalThreading=true)] public override IAsyncResult BeginWrite(byte[] array, int offset, int count, AsyncCallback asyncCallback, object asyncState) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.BeginWrite(array, offset, count, asyncCallback, asyncState); } public override void EndWrite(IAsyncResult asyncResult) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } deflateStream.EndWrite(asyncResult); } public override int Read(byte[] array, int offset, int count) { if( deflateStream == null) { throw new ObjectDisposedException(null, SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.Read(array, offset, count); } public override void Write(byte[] array, int offset, int count) { if( deflateStream == null) { throw new ObjectDisposedException(null, SR.GetString(SR.ObjectDisposed_StreamClosed)); } deflateStream.Write(array, offset, count); } protected override void Dispose(bool disposing) { try { if (disposing && deflateStream != null) { deflateStream.Close(); } deflateStream = null; } finally { base.Dispose(disposing); } } public Stream BaseStream { get { if( deflateStream != null) { return deflateStream.BaseStream; } else { return null; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. namespace System.IO.Compression { using System.IO; using System.Diagnostics; using System.Security.Permissions; public class GZipStream : Stream { private DeflateStream deflateStream; public GZipStream(Stream stream, CompressionMode mode) : this( stream, mode, false) { } public GZipStream(Stream stream, CompressionMode mode, bool leaveOpen) { deflateStream = new DeflateStream(stream, mode, leaveOpen, true); } public override bool CanRead { get { if( deflateStream == null) { return false; } return deflateStream.CanRead; } } public override bool CanWrite { get { if( deflateStream == null) { return false; } return deflateStream.CanWrite; } } public override bool CanSeek { get { if( deflateStream == null) { return false; } return deflateStream.CanSeek; } } public override long Length { get { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } } public override long Position { get { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } set { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } } public override void Flush() { if( deflateStream == null) { throw new ObjectDisposedException(null, SR.GetString(SR.ObjectDisposed_StreamClosed)); } deflateStream.Flush(); return; } public override long Seek(long offset, SeekOrigin origin) { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } public override void SetLength(long value) { throw new NotSupportedException(SR.GetString(SR.NotSupported)); } [HostProtection(ExternalThreading=true)] public override IAsyncResult BeginRead(byte[] array, int offset, int count, AsyncCallback asyncCallback, object asyncState) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.BeginRead(array, offset, count, asyncCallback, asyncState); } public override int EndRead(IAsyncResult asyncResult) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.EndRead(asyncResult); } [HostProtection(ExternalThreading=true)] public override IAsyncResult BeginWrite(byte[] array, int offset, int count, AsyncCallback asyncCallback, object asyncState) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.BeginWrite(array, offset, count, asyncCallback, asyncState); } public override void EndWrite(IAsyncResult asyncResult) { if( deflateStream == null) { throw new InvalidOperationException(SR.GetString(SR.ObjectDisposed_StreamClosed)); } deflateStream.EndWrite(asyncResult); } public override int Read(byte[] array, int offset, int count) { if( deflateStream == null) { throw new ObjectDisposedException(null, SR.GetString(SR.ObjectDisposed_StreamClosed)); } return deflateStream.Read(array, offset, count); } public override void Write(byte[] array, int offset, int count) { if( deflateStream == null) { throw new ObjectDisposedException(null, SR.GetString(SR.ObjectDisposed_StreamClosed)); } deflateStream.Write(array, offset, count); } protected override void Dispose(bool disposing) { try { if (disposing && deflateStream != null) { deflateStream.Close(); } deflateStream = null; } finally { base.Dispose(disposing); } } public Stream BaseStream { get { if( deflateStream != null) { return deflateStream.BaseStream; } else { return null; } } } } } // 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
- WebPartEditorOkVerb.cs
- ToolStripDropDownClosingEventArgs.cs
- DatagridviewDisplayedBandsData.cs
- CodeGenerator.cs
- SocketManager.cs
- UnsafeNativeMethods.cs
- HotSpotCollection.cs
- FileSystemWatcher.cs
- SqlUdtInfo.cs
- ZipIORawDataFileBlock.cs
- ScriptReference.cs
- WebExceptionStatus.cs
- SessionIDManager.cs
- MonthChangedEventArgs.cs
- SqlTrackingService.cs
- ServicePoint.cs
- RuntimeHelpers.cs
- SplitterPanel.cs
- WebPartUtil.cs
- GridViewColumn.cs
- UInt16Storage.cs
- StateChangeEvent.cs
- SingleAnimation.cs
- BitmapEffectrendercontext.cs
- ReferenceTypeElement.cs
- UICuesEvent.cs
- ValidationSummary.cs
- XmlAutoDetectWriter.cs
- ValidationResult.cs
- Path.cs
- StubHelpers.cs
- FixedSOMContainer.cs
- GridView.cs
- CodeAttributeDeclarationCollection.cs
- WebPartTransformerCollection.cs
- NetworkInformationException.cs
- KeyPressEvent.cs
- ListViewTableRow.cs
- IDictionary.cs
- formatter.cs
- SmiGettersStream.cs
- LocatorManager.cs
- AppDomainProtocolHandler.cs
- CodeAccessPermission.cs
- ActiveXSite.cs
- RectKeyFrameCollection.cs
- RouteTable.cs
- TextRunProperties.cs
- WebPartDisplayMode.cs
- IInstanceContextProvider.cs
- UpdateCommandGenerator.cs
- XmlNode.cs
- ScriptServiceAttribute.cs
- AttributeData.cs
- TextServicesContext.cs
- PhonemeEventArgs.cs
- TreeNodeEventArgs.cs
- PropertyDescriptorCollection.cs
- CompressEmulationStream.cs
- SignatureHelper.cs
- TableLayoutCellPaintEventArgs.cs
- PropertyKey.cs
- DateTime.cs
- List.cs
- BaseConfigurationRecord.cs
- SplayTreeNode.cs
- StateInitialization.cs
- FormClosingEvent.cs
- TargetConverter.cs
- DbUpdateCommandTree.cs
- SqlConnectionPoolGroupProviderInfo.cs
- SQLByteStorage.cs
- GridView.cs
- WebPartConnectionsConfigureVerb.cs
- WebBrowserNavigatingEventHandler.cs
- MarkupCompilePass2.cs
- InputLanguageCollection.cs
- BitmapSourceSafeMILHandle.cs
- WorkflowMarkupSerializationManager.cs
- Column.cs
- FreezableDefaultValueFactory.cs
- PageBuildProvider.cs
- SchemaNotation.cs
- PaginationProgressEventArgs.cs
- FileCodeGroup.cs
- RegexRunner.cs
- XmlSchemaRedefine.cs
- SqlClientFactory.cs
- ActivityStatusChangeEventArgs.cs
- DatePickerTextBox.cs
- ToolStripManager.cs
- VisualBrush.cs
- XmlSchemaFacet.cs
- SoapExtensionImporter.cs
- nulltextnavigator.cs
- HostingEnvironmentException.cs
- Panel.cs
- XmlSchemaAttributeGroupRef.cs
- MatrixTransform3D.cs
- DesignerCommandAdapter.cs