Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / clr / src / BCL / System / ArgIterator.cs / 1 / ArgIterator.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System { using System; using System.Runtime.InteropServices; using System.Runtime.CompilerServices; // This class will not be marked serializable [StructLayout(LayoutKind.Auto)] public struct ArgIterator { [MethodImplAttribute(MethodImplOptions.InternalCall)] private extern ArgIterator(IntPtr arglist); // create an arg iterator that points at the first argument that // is not statically declared (that is the first ... arg) // 'arglist' is the value returned by the ARGLIST instruction public ArgIterator(RuntimeArgumentHandle arglist) : this(arglist.Value) { } [MethodImplAttribute(MethodImplOptions.InternalCall)] private unsafe extern ArgIterator(IntPtr arglist, void *ptr); // create an arg iterator that points just past 'firstArg'. // 'arglist' is the value returned by the ARGLIST instruction // This is much like the C va_start macro [CLSCompliant(false)] public unsafe ArgIterator(RuntimeArgumentHandle arglist, void* ptr) : this(arglist.Value, ptr) { } // Fetch an argument as a typed referece, advance the iterator. // Throws an exception if past end of argument list [CLSCompliant(false)] public TypedReference GetNextArg() { TypedReference result = new TypedReference (); // reference to TypedReference is banned, so have to pass result as pointer unsafe { FCallGetNextArg (&result); } return result; } [MethodImplAttribute(MethodImplOptions.InternalCall)] // reference to TypedReference is banned, so have to pass result as void pointer private unsafe extern void FCallGetNextArg(void * result); // Alternate version of GetNextArg() intended primarily for IJW code // generated by VC's "va_arg()" construct. [CLSCompliant(false)] public TypedReference GetNextArg(RuntimeTypeHandle rth) { if (sigPtr != IntPtr.Zero) { // This is an ordinary ArgIterator capable of determining // types from a signature. Just do a regular GetNextArg. return GetNextArg(); } else { // Prevent abuse of this API with a default ArgIterator (it // doesn't require permission to create a zero-inited value // type). Check that ArgPtr isn't zero or this API will allow a // malicious caller to increment the pointer to an arbitrary // location in memory and read the contents. if (ArgPtr == IntPtr.Zero) throw new ArgumentNullException(); TypedReference result = new TypedReference (); // reference to TypedReference is banned, so have to pass result as pointer unsafe { InternalGetNextArg(&result, rth); } return result; } } [MethodImplAttribute(MethodImplOptions.InternalCall)] // reference to TypedReference is banned, so have to pass result as void pointer private unsafe extern void InternalGetNextArg(void * result, RuntimeTypeHandle rth); // This method should invalidate the iterator (va_end). It is not supported yet. public void End() { } // How many arguments are left in the list [MethodImplAttribute(MethodImplOptions.InternalCall)] public extern int GetRemainingCount(); // Gets the type of the current arg, does NOT advance the iterator [MethodImplAttribute(MethodImplOptions.InternalCall)] private extern unsafe void* _GetNextArgType(); public unsafe RuntimeTypeHandle GetNextArgType() { return new RuntimeTypeHandle(_GetNextArgType()); } public override int GetHashCode() { return unchecked((int)((long)ArgCookie)); } // Inherited from object public override bool Equals(Object o) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NYI")); } private IntPtr ArgCookie; // Cookie from the EE. // The SigPtr structure consists of the following members private IntPtr sigPtr; // Pointer to remaining signature. private IntPtr sigPtrLen; // Remaining length of the pointer // Note, sigPtrLen is actually a DWORD, but on 64bit systems this structure becomes // 8-byte aligned, which requires us to pad it. private IntPtr ArgPtr; // Pointer to remaining args. private int RemainingArgs; // # of remaining args. } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System { using System; using System.Runtime.InteropServices; using System.Runtime.CompilerServices; // This class will not be marked serializable [StructLayout(LayoutKind.Auto)] public struct ArgIterator { [MethodImplAttribute(MethodImplOptions.InternalCall)] private extern ArgIterator(IntPtr arglist); // create an arg iterator that points at the first argument that // is not statically declared (that is the first ... arg) // 'arglist' is the value returned by the ARGLIST instruction public ArgIterator(RuntimeArgumentHandle arglist) : this(arglist.Value) { } [MethodImplAttribute(MethodImplOptions.InternalCall)] private unsafe extern ArgIterator(IntPtr arglist, void *ptr); // create an arg iterator that points just past 'firstArg'. // 'arglist' is the value returned by the ARGLIST instruction // This is much like the C va_start macro [CLSCompliant(false)] public unsafe ArgIterator(RuntimeArgumentHandle arglist, void* ptr) : this(arglist.Value, ptr) { } // Fetch an argument as a typed referece, advance the iterator. // Throws an exception if past end of argument list [CLSCompliant(false)] public TypedReference GetNextArg() { TypedReference result = new TypedReference (); // reference to TypedReference is banned, so have to pass result as pointer unsafe { FCallGetNextArg (&result); } return result; } [MethodImplAttribute(MethodImplOptions.InternalCall)] // reference to TypedReference is banned, so have to pass result as void pointer private unsafe extern void FCallGetNextArg(void * result); // Alternate version of GetNextArg() intended primarily for IJW code // generated by VC's "va_arg()" construct. [CLSCompliant(false)] public TypedReference GetNextArg(RuntimeTypeHandle rth) { if (sigPtr != IntPtr.Zero) { // This is an ordinary ArgIterator capable of determining // types from a signature. Just do a regular GetNextArg. return GetNextArg(); } else { // Prevent abuse of this API with a default ArgIterator (it // doesn't require permission to create a zero-inited value // type). Check that ArgPtr isn't zero or this API will allow a // malicious caller to increment the pointer to an arbitrary // location in memory and read the contents. if (ArgPtr == IntPtr.Zero) throw new ArgumentNullException(); TypedReference result = new TypedReference (); // reference to TypedReference is banned, so have to pass result as pointer unsafe { InternalGetNextArg(&result, rth); } return result; } } [MethodImplAttribute(MethodImplOptions.InternalCall)] // reference to TypedReference is banned, so have to pass result as void pointer private unsafe extern void InternalGetNextArg(void * result, RuntimeTypeHandle rth); // This method should invalidate the iterator (va_end). It is not supported yet. public void End() { } // How many arguments are left in the list [MethodImplAttribute(MethodImplOptions.InternalCall)] public extern int GetRemainingCount(); // Gets the type of the current arg, does NOT advance the iterator [MethodImplAttribute(MethodImplOptions.InternalCall)] private extern unsafe void* _GetNextArgType(); public unsafe RuntimeTypeHandle GetNextArgType() { return new RuntimeTypeHandle(_GetNextArgType()); } public override int GetHashCode() { return unchecked((int)((long)ArgCookie)); } // Inherited from object public override bool Equals(Object o) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NYI")); } private IntPtr ArgCookie; // Cookie from the EE. // The SigPtr structure consists of the following members private IntPtr sigPtr; // Pointer to remaining signature. private IntPtr sigPtrLen; // Remaining length of the pointer // Note, sigPtrLen is actually a DWORD, but on 64bit systems this structure becomes // 8-byte aligned, which requires us to pad it. private IntPtr ArgPtr; // Pointer to remaining args. private int RemainingArgs; // # of remaining args. } } // 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
- ResourcePart.cs
- PeerPresenceInfo.cs
- ApplicationContext.cs
- KeyFrames.cs
- VirtualizedContainerService.cs
- FontStretch.cs
- ButtonField.cs
- COAUTHIDENTITY.cs
- XmlIterators.cs
- ExpressionVisitor.cs
- XmlTextEncoder.cs
- RegexRunnerFactory.cs
- ToolboxComponentsCreatingEventArgs.cs
- XmlDocumentSerializer.cs
- FlowDocumentPage.cs
- RestHandler.cs
- TableItemProviderWrapper.cs
- Border.cs
- VectorConverter.cs
- Rect3DConverter.cs
- ZipIOCentralDirectoryBlock.cs
- SimpleHandlerFactory.cs
- DataGridParentRows.cs
- SQLBytesStorage.cs
- GetChildSubtree.cs
- Calendar.cs
- TimeSpan.cs
- PackageStore.cs
- PointCollection.cs
- DataSourceControl.cs
- ManipulationBoundaryFeedbackEventArgs.cs
- Profiler.cs
- WindowsStreamSecurityElement.cs
- XmlArrayItemAttribute.cs
- DisableDpiAwarenessAttribute.cs
- TableLayoutPanelCellPosition.cs
- ObjectDisposedException.cs
- KeyFrames.cs
- SqlFactory.cs
- GroupQuery.cs
- LocalizedNameDescriptionPair.cs
- EntityProviderServices.cs
- ProcessingInstructionAction.cs
- LeftCellWrapper.cs
- EditorPartCollection.cs
- ConditionalAttribute.cs
- DynamicDataResources.Designer.cs
- DataSysAttribute.cs
- AnonymousIdentificationSection.cs
- SymmetricKeyWrap.cs
- RequestStatusBarUpdateEventArgs.cs
- MultipleViewProviderWrapper.cs
- EncryptedPackage.cs
- BooleanSwitch.cs
- KeyTime.cs
- EnterpriseServicesHelper.cs
- CommandExpr.cs
- WebCategoryAttribute.cs
- ClientFormsAuthenticationMembershipProvider.cs
- TransformConverter.cs
- UInt64Converter.cs
- ThreadExceptionEvent.cs
- DelayLoadType.cs
- OpCodes.cs
- WmpBitmapDecoder.cs
- XmlDocumentType.cs
- EntitySetBaseCollection.cs
- XPathChildIterator.cs
- Handle.cs
- input.cs
- RedBlackList.cs
- SqlClientFactory.cs
- EntitySqlQueryState.cs
- And.cs
- ComProxy.cs
- CodeConstructor.cs
- InvokeMethod.cs
- panel.cs
- ReadOnlyDictionary.cs
- DateTimeValueSerializerContext.cs
- DeviceContext2.cs
- NullReferenceException.cs
- JournalNavigationScope.cs
- DesignerToolboxInfo.cs
- WebScriptEndpointElement.cs
- CodeStatementCollection.cs
- NativeMethods.cs
- XsltSettings.cs
- ExpressionsCollectionConverter.cs
- RuleAttributes.cs
- LogExtent.cs
- Section.cs
- Literal.cs
- DeferredElementTreeState.cs
- BinaryObjectInfo.cs
- DataServiceContext.cs
- ExecutionContext.cs
- DataGridColumnHeader.cs
- DataGridViewComboBoxCell.cs
- LinqDataSourceHelper.cs