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// AprSharp, a wrapper library around the Apache Portable Runtime Library |
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#region Copyright (C) 2004 SOFTEC sa. |
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// |
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// This library is free software; you can redistribute it and/or |
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// modify it under the terms of the GNU Lesser General Public |
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// License as published by the Free Software Foundation; either |
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// version 2.1 of the License, or (at your option) any later version. |
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// |
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// This library is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// Lesser General Public License for more details. |
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// |
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// You should have received a copy of the GNU Lesser General Public |
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// License along with this library; if not, write to the Free Software |
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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// |
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// Sources, support options and lastest version of the complete library |
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// is available from: |
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// http://www.softec.st/AprSharp |
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// |
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// |
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// Initial authors : |
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// Denis Gervalle |
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// Olivier Desaive |
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#endregion |
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// |
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using System; |
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using System.Diagnostics; |
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using System.Reflection; |
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using System.Runtime.InteropServices; |
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using System.Collections; |
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|
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namespace Softec.AprSharp |
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{ |
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public unsafe struct AprArray : IEnumerable, ICollection, IAprUnmanaged |
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{ |
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private apr_array_header_t *mArray; |
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private Type mEltsType; |
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|
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[StructLayout( LayoutKind.Sequential, Pack=4 )] |
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private struct apr_array_header_t |
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{ |
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public IntPtr pool; |
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public int elt_size; |
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public int nelts; |
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public int nalloc; |
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public IntPtr elts; |
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} |
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|
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#region Generic embedding functions of an IntPtr |
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private AprArray(apr_array_header_t *ptr) |
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{ |
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mArray = ptr; |
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mEltsType = null; |
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} |
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|
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public AprArray(IntPtr ptr) |
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{ |
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mArray = (apr_array_header_t *)ptr.ToPointer(); |
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mEltsType = null; |
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} |
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|
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public AprArray(IntPtr ptr, Type eltsType) |
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{ |
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mArray = (apr_array_header_t *)ptr.ToPointer(); |
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mEltsType = null; |
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if( eltsType != null ) |
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ElementType = eltsType; |
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} |
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|
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public bool IsNull |
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{ |
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get |
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{ |
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return( mArray == null ); |
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} |
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} |
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|
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private void CheckPtr() |
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{ |
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if( mArray == null ) |
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throw new AprNullReferenceException(); |
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} |
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|
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private void CheckPtr(Type type) |
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{ |
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if( mArray == null ) |
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throw new AprNullReferenceException(); |
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if( mEltsType != null && mEltsType != type ) |
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throw new AprInvalidOperationException(String.Format("Types mismatch between array ({0}) and value {1}.",mEltsType.Name,type.Name)); |
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} |
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|
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public void ClearPtr() |
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{ |
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mArray = null; |
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mEltsType = null; |
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} |
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|
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public IntPtr ToIntPtr() |
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{ |
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return new IntPtr(mArray); |
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} |
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|
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public bool ReferenceEquals(IAprUnmanaged obj) |
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{ |
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return(obj.ToIntPtr() == ToIntPtr()); |
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} |
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|
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public static implicit operator IntPtr(AprArray array) |
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{ |
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return new IntPtr(array.mArray); |
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} |
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public static implicit operator AprArray(IntPtr ptr) |
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{ |
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return new AprArray(ptr); |
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} |
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|
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public override string ToString() |
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{ |
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return("[apr_array_header_t:"+(new IntPtr(mArray)).ToInt32().ToString("X")+"]"); |
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} |
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|
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public Type ElementType |
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{ |
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get |
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{ |
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return(mEltsType); |
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} |
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set |
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{ |
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if( (value.IsPrimitive && Marshal.SizeOf(value) != mArray->elt_size) |
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||(!value.IsPrimitive && Marshal.SizeOf(typeof(IntPtr)) != mArray->elt_size) ) |
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throw new AprArgumentException("Type does not match element size."); |
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|
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if( value.IsPrimitive ) |
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mEltsType = value; |
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else { |
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if( value != typeof(IntPtr) && value.GetConstructor(new Type[] {typeof(IntPtr)}) == null ) |
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throw new AprInvalidOperationException("Type is not primitive and cannot be constructed from an IntPtr."); |
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mEltsType = value; |
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} |
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} |
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} |
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#endregion |
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|
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#region Methods wrappers |
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public static AprArray Make(AprPool pool, int nElts, Type eltsType ) |
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{ |
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if(eltsType.IsPrimitive) |
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return(new AprArray(Make(pool, nElts, Marshal.SizeOf(eltsType)),eltsType)); |
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else |
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return(new AprArray(Make(pool, nElts, Marshal.SizeOf(typeof(IntPtr))),eltsType)); |
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} |
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public static AprArray Make(AprPool pool, int nElts, int eltSize ) |
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{ |
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IntPtr ptr; |
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Debug.Write(String.Format("apr_array_make({0},{1},{2})...",pool,nElts,eltSize)); |
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ptr = Apr.apr_array_make(pool,nElts,eltSize); |
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if(ptr == IntPtr.Zero ) |
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throw new AprException("apr_array_make: Can't create an apr_array_header_t"); |
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Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
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return(ptr); |
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} |
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public static AprArray Make(AprPool pool, ICollection list ) |
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{ |
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if(list is AprArray) |
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return(((AprArray)list).Copy(pool)); |
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else |
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{ |
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IEnumerator it = list.GetEnumerator(); |
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it.MoveNext(); |
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AprArray a = Make(pool, list.Count, it.Current.GetType()); |
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it.Reset(); |
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while(it.MoveNext()) { |
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a.Push(it.Current); |
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} |
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return(a); |
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} |
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} |
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public static AprArray Make(AprPool pool, ICollection list, Type type ) |
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{ |
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if(list is AprArray |
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&& ((AprArray)list).ElementType == type ) |
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return(((AprArray)list).Copy(pool)); |
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else |
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{ |
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AprArray a = Make(pool, list.Count, type); |
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IEnumerator it = list.GetEnumerator(); |
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while(it.MoveNext()) { |
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a.Push(it.Current); |
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} |
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return(a); |
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} |
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} |
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public static AprArray LazyMake(AprPool pool, ICollection list ) |
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{ |
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if(list is AprArray) |
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{ |
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if( ((AprArray)list).Pool.ReferenceEquals(pool) ) |
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return ((AprArray)list); |
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} |
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return( Make(pool, list) ); |
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} |
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public static AprArray LazyMake(AprPool pool, ICollection list, Type type) |
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{ |
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if(list is AprArray) |
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{ |
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if( ((AprArray)list).Pool.ReferenceEquals(pool) |
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&& ((AprArray)list).ElementType == type ) |
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return ((AprArray)list); |
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} |
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return( Make(pool, list, type) ); |
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} |
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public AprArray Copy(AprPool pool) |
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{ |
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IntPtr ptr; |
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CheckPtr(); |
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Debug.Write(String.Format("apr_array_copy({0},{1})...",pool,this)); |
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ptr = Apr.apr_array_copy(pool,(IntPtr)mArray); |
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if(ptr == IntPtr.Zero ) |
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throw new AprException("apr_array_copy: Can't copy an apr_array_header_t"); |
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Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
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return(new AprArray(ptr,mEltsType)); |
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} |
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public AprArray CopyHdr(AprPool pool) |
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{ |
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IntPtr ptr; |
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CheckPtr(); |
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Debug.Write(String.Format("apr_array_copy_hdr({0},{1})...",pool,this)); |
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ptr = Apr.apr_array_copy_hdr(pool,new IntPtr(mArray)); |
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if(ptr == IntPtr.Zero ) |
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throw new AprException("apr_array_copy_hdr: Can't copy an apr_array_header_t"); |
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Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
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return(new AprArray(ptr,mEltsType)); |
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} |
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public AprArray Append(AprPool pool, AprArray array) |
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{ |
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IntPtr ptr; |
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Type arrType; |
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CheckPtr(); |
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if (mEltsType != null && array.mEltsType != null && mEltsType != array.mEltsType) |
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throw new AprInvalidOperationException("Array type mismatch."); |
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if(mEltsType == null && array.mEltsType != null) |
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arrType = array.mEltsType; |
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arrType = mEltsType; |
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Debug.Write(String.Format("apr_array_append({0},{1},{2})...",pool,array,this)); |
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ptr = Apr.apr_array_append(pool,(IntPtr)mArray,array); |
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if(ptr == IntPtr.Zero ) |
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throw new AprException("apr_array_append: Can't append an apr_array_header_t"); |
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Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
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return(new AprArray(ptr,arrType)); |
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} |
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public void Cat(AprArray array) |
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{ |
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CheckPtr(); |
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if (mEltsType != null && array.mEltsType != null && mEltsType != array.mEltsType) |
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throw new AprInvalidOperationException("Array types mismatch."); |
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if(mEltsType == null && array.mEltsType != null) |
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mEltsType = array.mEltsType; |
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Debug.WriteLine(String.Format("apr_array_cat({0},{1})",this,array)); |
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Apr.apr_array_cat((IntPtr)mArray,array); |
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} |
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public string StrCat(AprPool pool, char sep) |
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{ |
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return(pStrCat(pool,sep).ToString()); |
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} |
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public AprString pStrCat(AprPool pool, char sep) |
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{ |
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IntPtr ptr; |
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CheckPtr(); |
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if(mEltsType != null && mEltsType != typeof(AprString)) |
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throw new AprInvalidOperationException("Not an AprString array."); |
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Debug.Write(String.Format("apr_array_pstrcat({0},{1},{2})...",pool,this,sep)); |
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ptr = Apr.apr_array_pstrcat(pool,new IntPtr(mArray),sep); |
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if(ptr == IntPtr.Zero ) |
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throw new AprException("apr_array_pstrcat: Can't convert an apr_array_header_t to AprString"); |
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Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
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return(ptr); |
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} |
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public void Push(bool o) |
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{ |
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CheckPtr(typeof(bool)); |
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Marshal.WriteByte(Push(),(byte)((o) ? 1 : 0)); |
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} |
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public void Push(byte o) |
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{ |
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CheckPtr(typeof(byte)); |
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Marshal.WriteByte(Push(),o); |
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} |
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|
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[CLSCompliant(false)] |
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public void Push(sbyte o) |
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{ |
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CheckPtr(typeof(sbyte)); |
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Marshal.WriteByte(Push(),unchecked((byte)o)); |
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} |
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|
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public void Push(short o) |
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{ |
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CheckPtr(typeof(short)); |
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Marshal.WriteInt16(Push(),o); |
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} |
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|
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[CLSCompliant(false)] |
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public void Push(ushort o) |
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{ |
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CheckPtr(typeof(ushort)); |
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Marshal.WriteInt16(Push(),unchecked((short)o)); |
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} |
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|
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public void Push(int o) |
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{ |
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CheckPtr(typeof(int)); |
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Marshal.WriteInt32(Push(),o); |
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} |
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|
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[CLSCompliant(false)] |
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public void Push(uint o) |
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{ |
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CheckPtr(typeof(uint)); |
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Marshal.WriteInt32(Push(),unchecked((int)o)); |
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} |
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|
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public void Push(long o) |
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{ |
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CheckPtr(typeof(long)); |
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Marshal.WriteInt64(Push(),o); |
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} |
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|
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[CLSCompliant(false)] |
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public void Push(ulong o) |
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{ |
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CheckPtr(typeof(ulong)); |
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Marshal.WriteInt64(Push(),unchecked((long)o)); |
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} |
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|
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public void Push(IntPtr ptr) |
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{ |
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CheckPtr(); |
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Marshal.WriteIntPtr(Push(),ptr); |
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} |
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|
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public void Push(object o) |
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{ |
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if(mEltsType == typeof(IntPtr)) |
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Push((IntPtr)o); |
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else |
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{ |
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if(mEltsType.IsPrimitive) |
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{ |
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if(mEltsType == typeof(bool)) |
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Push((bool)o); |
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else if(mEltsType == typeof(byte)) |
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Push((byte)o); |
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else if(mEltsType == typeof(sbyte)) |
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Push((sbyte)o); |
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else if(mEltsType == typeof(short)) |
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Push((short)o); |
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else if(mEltsType == typeof(ushort)) |
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Push((ushort)o); |
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else if(mEltsType == typeof(int)) |
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Push((int)o); |
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else if(mEltsType == typeof(uint)) |
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Push((uint)o); |
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else if(mEltsType == typeof(long)) |
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Push((long)o); |
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else if(mEltsType == typeof(ulong)) |
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Push((ulong)o); |
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else |
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throw new AprInvalidOperationException("Array type not supported."); |
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} |
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else |
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{ |
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object co; |
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|
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if(mEltsType != o.GetType()) |
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{ |
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411 |
ConstructorInfo ctor = mEltsType.GetConstructor(new Type[] {o.GetType(), |
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typeof(AprPool)}); |
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if( ctor == null ) |
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throw new AprInvalidOperationException("Type is not primitive and cannot be constructed from pushed object."); |
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|
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co = ctor.Invoke(new Object[] { o, Pool }); |
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} |
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else |
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co = o; |
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420 |
|
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IAprUnmanaged obj = co as IAprUnmanaged; |
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422 |
if( o == null ) |
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throw new AprInvalidOperationException("Array type should implement IAprUnmanaged."); |
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Push(obj.ToIntPtr()); |
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} |
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426 |
} |
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427 |
} |
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428 |
|
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public IntPtr Push() |
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430 |
{ |
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431 |
IntPtr ptr; |
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432 |
|
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CheckPtr(); |
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434 |
Debug.Write(String.Format("apr_array_push({0})...",this)); |
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ptr = Apr.apr_array_push(new IntPtr(mArray)); |
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436 |
if(ptr == IntPtr.Zero ) |
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437 |
throw new AprException("apr_array_push: Can't push an element"); |
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438 |
Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
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439 |
|
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440 |
return(ptr); |
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441 |
} |
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442 |
|
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443 |
public object PopObject() |
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444 |
{ |
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445 |
if(mEltsType == null) |
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446 |
throw new AprInvalidOperationException("Array not typed."); |
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447 |
|
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448 |
if(mEltsType == typeof(IntPtr)) |
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449 |
{ |
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450 |
return(Marshal.ReadIntPtr(Pop())); |
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451 |
} |
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452 |
if(mEltsType.IsPrimitive) |
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453 |
{ |
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454 |
object val; |
---|
455 |
switch(ElementSize) |
---|
456 |
{ |
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457 |
case 1: |
---|
458 |
val = Marshal.ReadByte(Pop()); |
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459 |
break; |
---|
460 |
case 2: |
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461 |
val = Marshal.ReadInt16(Pop()); |
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462 |
break; |
---|
463 |
case 4: |
---|
464 |
val = Marshal.ReadInt32(Pop()); |
---|
465 |
break; |
---|
466 |
case 8: |
---|
467 |
val = Marshal.ReadInt64(Pop()); |
---|
468 |
break; |
---|
469 |
default: |
---|
470 |
throw new AprInvalidOperationException("Invalid element size."); |
---|
471 |
} |
---|
472 |
if(mEltsType == val.GetType()) |
---|
473 |
return(val); |
---|
474 |
else if (mEltsType == typeof(bool)) |
---|
475 |
return(Convert.ChangeType(val,typeof(bool))); |
---|
476 |
else if (mEltsType == typeof(sbyte)) |
---|
477 |
return(unchecked((sbyte)((byte)val))); |
---|
478 |
else if (mEltsType == typeof(ushort)) |
---|
479 |
return(unchecked((ushort)((short)val))); |
---|
480 |
else if (mEltsType == typeof(uint)) |
---|
481 |
return(unchecked((uint)((int)val))); |
---|
482 |
else if (mEltsType == typeof(ulong)) |
---|
483 |
return(unchecked((ulong)((long)val))); |
---|
484 |
return(val); |
---|
485 |
} |
---|
486 |
|
---|
487 |
ConstructorInfo ctor = mEltsType.GetConstructor(new Type[] {typeof(IntPtr)}); |
---|
488 |
if( ctor == null ) |
---|
489 |
throw new AprInvalidOperationException("Type is not primitive and cannot be constructed from an IntPtr."); |
---|
490 |
|
---|
491 |
IntPtr ptr = Marshal.ReadIntPtr(Pop()); |
---|
492 |
return(ctor.Invoke(new Object[] { ptr })); |
---|
493 |
} |
---|
494 |
|
---|
495 |
public IntPtr Pop() |
---|
496 |
{ |
---|
497 |
IntPtr ptr; |
---|
498 |
|
---|
499 |
CheckPtr(); |
---|
500 |
Debug.Write(String.Format("apr_array_pop({0})...",this)); |
---|
501 |
ptr = Apr.apr_array_pop(new IntPtr(mArray)); |
---|
502 |
Debug.WriteLine(String.Format("Done({0:X})",((Int32)ptr))); |
---|
503 |
|
---|
504 |
return(ptr); |
---|
505 |
} |
---|
506 |
|
---|
507 |
public bool IsEmpty() |
---|
508 |
{ |
---|
509 |
bool isEmpty; |
---|
510 |
CheckPtr(); |
---|
511 |
Debug.Write(String.Format("apr_is_empty_array({0})...",this)); |
---|
512 |
isEmpty = Apr.apr_is_empty_array(new IntPtr(mArray)); |
---|
513 |
Debug.WriteLine(String.Format("Done({0:X})",isEmpty)); |
---|
514 |
return(isEmpty); |
---|
515 |
} |
---|
516 |
#endregion |
---|
517 |
|
---|
518 |
#region Wrapper Properties |
---|
519 |
public AprPool Pool |
---|
520 |
{ |
---|
521 |
get { |
---|
522 |
return(mArray->pool); |
---|
523 |
} |
---|
524 |
} |
---|
525 |
|
---|
526 |
public int AllocatedCount |
---|
527 |
{ |
---|
528 |
get { |
---|
529 |
return(mArray->nalloc); |
---|
530 |
} |
---|
531 |
} |
---|
532 |
|
---|
533 |
public int ElementSize |
---|
534 |
{ |
---|
535 |
get { |
---|
536 |
return(mArray->elt_size); |
---|
537 |
} |
---|
538 |
} |
---|
539 |
|
---|
540 |
public IntPtr Data |
---|
541 |
{ |
---|
542 |
get { |
---|
543 |
return(mArray->elts); |
---|
544 |
} |
---|
545 |
} |
---|
546 |
#endregion |
---|
547 |
|
---|
548 |
#region ICollection |
---|
549 |
public void CopyTo(Array array, int arrayIndex) |
---|
550 |
{ |
---|
551 |
if(null == array) |
---|
552 |
throw new AprArgumentNullException("array"); |
---|
553 |
if(arrayIndex < 0 || arrayIndex > array.Length) |
---|
554 |
throw new AprArgumentOutOfRangeException("arrayIndex"); |
---|
555 |
if(array.Rank > 1) |
---|
556 |
throw new AprArgumentException("array is multidimensional"); |
---|
557 |
if((array.Length - arrayIndex) < Count) |
---|
558 |
throw new AprArgumentException("Not enough room from arrayIndex to end of array for this AprArray"); |
---|
559 |
|
---|
560 |
int i = arrayIndex; |
---|
561 |
IEnumerator it = GetEnumerator(); |
---|
562 |
while(it.MoveNext()) { |
---|
563 |
array.SetValue(it.Current, i++); |
---|
564 |
} |
---|
565 |
} |
---|
566 |
|
---|
567 |
public bool IsSynchronized |
---|
568 |
{ |
---|
569 |
get |
---|
570 |
{ |
---|
571 |
return false; |
---|
572 |
} |
---|
573 |
} |
---|
574 |
|
---|
575 |
public object SyncRoot |
---|
576 |
{ |
---|
577 |
get |
---|
578 |
{ |
---|
579 |
return this; |
---|
580 |
} |
---|
581 |
} |
---|
582 |
|
---|
583 |
public int Count |
---|
584 |
{ |
---|
585 |
get { |
---|
586 |
return(mArray->nelts); |
---|
587 |
} |
---|
588 |
} |
---|
589 |
#endregion |
---|
590 |
|
---|
591 |
#region IEnumerable |
---|
592 |
public IEnumerator GetEnumerator() |
---|
593 |
{ |
---|
594 |
return (IEnumerator) new AprArrayEnumerator(this); |
---|
595 |
} |
---|
596 |
#endregion |
---|
597 |
|
---|
598 |
} |
---|
599 |
|
---|
600 |
public class AprArrayEnumerator : IEnumerator |
---|
601 |
{ |
---|
602 |
AprArray mArray; |
---|
603 |
int mIndex; |
---|
604 |
|
---|
605 |
public AprArrayEnumerator(AprArray array) |
---|
606 |
{ |
---|
607 |
mArray = array; |
---|
608 |
mIndex = -1; |
---|
609 |
} |
---|
610 |
|
---|
611 |
#region IEnumerator |
---|
612 |
public bool MoveNext() |
---|
613 |
{ |
---|
614 |
if (++mIndex >= mArray.Count) { |
---|
615 |
mIndex = mArray.Count; |
---|
616 |
return(false); |
---|
617 |
} |
---|
618 |
return(true); |
---|
619 |
} |
---|
620 |
|
---|
621 |
public void Reset() |
---|
622 |
{ |
---|
623 |
mIndex = -1; |
---|
624 |
} |
---|
625 |
|
---|
626 |
public object Current |
---|
627 |
{ |
---|
628 |
get |
---|
629 |
{ |
---|
630 |
if (mIndex < 0 || mIndex >= mArray.Count) |
---|
631 |
throw new AprInvalidOperationException("No current item."); |
---|
632 |
|
---|
633 |
if(mArray.ElementType == null) |
---|
634 |
throw new AprInvalidOperationException("Array not typed."); |
---|
635 |
|
---|
636 |
if(mArray.ElementType == typeof(IntPtr)) |
---|
637 |
{ |
---|
638 |
return(Marshal.ReadIntPtr(mArray.Data,mIndex*mArray.ElementSize)); |
---|
639 |
} |
---|
640 |
if(mArray.ElementType.IsPrimitive) |
---|
641 |
{ |
---|
642 |
object val; |
---|
643 |
switch(mArray.ElementSize) |
---|
644 |
{ |
---|
645 |
case 1: |
---|
646 |
val = Marshal.ReadByte(mArray.Data,mIndex); |
---|
647 |
break; |
---|
648 |
case 2: |
---|
649 |
val = Marshal.ReadInt16(mArray.Data,mIndex*2); |
---|
650 |
break; |
---|
651 |
case 4: |
---|
652 |
val = Marshal.ReadInt32(mArray.Data,mIndex*4); |
---|
653 |
break; |
---|
654 |
case 8: |
---|
655 |
val = Marshal.ReadInt64(mArray.Data,mIndex*8); |
---|
656 |
break; |
---|
657 |
default: |
---|
658 |
throw new AprInvalidOperationException("Invalid element size."); |
---|
659 |
} |
---|
660 |
|
---|
661 |
if(mArray.ElementType == val.GetType()) |
---|
662 |
return(val); |
---|
663 |
else if (mArray.ElementType == typeof(bool)) |
---|
664 |
return(unchecked(Convert.ChangeType(val,typeof(bool)))); |
---|
665 |
else if (mArray.ElementType == typeof(sbyte)) |
---|
666 |
return(unchecked((sbyte)((byte)val))); |
---|
667 |
else if (mArray.ElementType == typeof(ushort)) |
---|
668 |
return(unchecked((ushort)((short)val))); |
---|
669 |
else if (mArray.ElementType == typeof(uint)) |
---|
670 |
return(unchecked((uint)((int)val))); |
---|
671 |
else if (mArray.ElementType == typeof(ulong)) |
---|
672 |
return(unchecked((ulong)((long)val))); |
---|
673 |
return(val); |
---|
674 |
} |
---|
675 |
|
---|
676 |
ConstructorInfo ctor = mArray.ElementType.GetConstructor(new Type[] {typeof(IntPtr)}); |
---|
677 |
if( ctor == null ) |
---|
678 |
throw new AprInvalidOperationException("Type is not primitive and cannot be constructed from an IntPtr."); |
---|
679 |
|
---|
680 |
IntPtr ptr = Marshal.ReadIntPtr(mArray.Data,mIndex*mArray.ElementSize); |
---|
681 |
return(ctor.Invoke(new Object[] { ptr })); |
---|
682 |
} |
---|
683 |
} |
---|
684 |
#endregion |
---|
685 |
|
---|
686 |
} |
---|
687 |
} |
---|