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+//
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+// DefaultOperationInvoker.cs
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+//
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+// Author: Atsushi Enomoto ([email protected])
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+//
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+// Copyright (C) 2009 Novell, Inc (http://www.novell.com)
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining
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+// a copy of this software and associated documentation files (the
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+// "Software"), to deal in the Software without restriction, including
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+// without limitation the rights to use, copy, modify, merge, publish,
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+// distribute, sublicense, and/or sell copies of the Software, and to
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+// permit persons to whom the Software is furnished to do so, subject to
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+// the following conditions:
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+//
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+// The above copyright notice and this permission notice shall be
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+// included in all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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+//
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+
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+using System;
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+using System.Collections.Generic;
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+using System.ServiceModel;
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+using System.ServiceModel.Description;
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+using System.Reflection;
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+using System.Threading;
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+
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+namespace System.ServiceModel.Dispatcher
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+{
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+ class DefaultOperationInvoker : IOperationInvoker
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+ {
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+ readonly OperationDescription od;
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+ readonly ParameterInfo [] in_params, out_params;
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+
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+ public DefaultOperationInvoker (OperationDescription od)
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+ {
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+ this.od = od;
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+ var mi = od.SyncMethod ?? od.BeginMethod;
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+ var il = new List<ParameterInfo> ();
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+ var ol = new List<ParameterInfo> ();
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+ var pl = mi.GetParameters ();
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+ int count = mi == od.BeginMethod ? pl.Length - 2 : pl.Length;
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+ for (int i = 0; i < count; i++) {
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+ var pi = pl [i];
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+ if (!pi.IsOut)
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+ il.Add (pi);
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+ if (pi.IsOut)
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+ ol.Add (pi);
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+ }
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+ in_params = il.ToArray ();
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+ out_params = ol.ToArray ();
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+ }
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+
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+ public bool IsSynchronous {
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+ get { return true; }
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+ }
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+
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+ public object [] AllocateInputs ()
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+ {
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+ return new object [in_params.Length];
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+ }
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+
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+ public object Invoke (object instance, object [] inputs, out object [] outputs)
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+ {
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+ var arr = new object [in_params.Length + out_params.Length];
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+ for (int i = 0; i < in_params.Length; i++)
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+ arr [in_params [i].Position] = inputs [i];
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+
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+ var ret = od.SyncMethod.Invoke (instance, arr);
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+
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+ outputs = new object [out_params.Length];
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+ for (int i = 0; i < out_params.Length; i++)
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+ outputs [i] = arr [out_params [i].Position];
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+
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+ return ret;
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+ }
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+
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+ public IAsyncResult InvokeBegin (object instance, object [] inputs, AsyncCallback callback, object state)
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+ {
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+ var arr = new object [in_params.Length + out_params.Length + 2];
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+ for (int i = 0; i < in_params.Length; i++)
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+ arr [in_params [i].Position] = inputs [i];
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+ arr [arr.Length - 2] = callback;
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+ arr [arr.Length - 1] = state;
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+ return new InvokeAsyncResult (arr, (IAsyncResult) od.BeginMethod.Invoke (instance, arr));
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+ }
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+
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+ public object InvokeEnd (object instance, out object [] outputs, IAsyncResult result)
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+ {
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+ var r = (InvokeAsyncResult) result;
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+ var ret = od.EndMethod.Invoke (instance, new object [] {r.Source});
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+ var arr = r.Parameters;
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+ outputs = new object [out_params.Length];
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+ for (int i = 0; i < out_params.Length; i++)
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+ outputs [i] = arr [out_params [i].Position];
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+ return ret;
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+ }
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+
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+ class InvokeAsyncResult : IAsyncResult
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+ {
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+ public InvokeAsyncResult (object [] parameters, IAsyncResult source)
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+ {
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+ Source = source;
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+ Parameters = parameters;
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+ }
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+
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+ public IAsyncResult Source;
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+ public object [] Parameters;
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+
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+ public WaitHandle AsyncWaitHandle {
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+ get { return Source.AsyncWaitHandle; }
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+ }
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+ public bool CompletedSynchronously {
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+ get { return Source.CompletedSynchronously; }
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+ }
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+ public bool IsCompleted {
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+ get { return Source.IsCompleted; }
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+ }
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+ public object AsyncState {
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+ get { return Source.AsyncState; }
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+ }
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+ }
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+ }
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+}
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