MessageQueueEnumerator.cs :  » 2.6.4-mono-.net-core » System.Messaging » System » Messaging » C# / CSharp Open Source

//
// System.Messaging
//
// Authors:
//      Peter Van Isacker (sclytrack@planetinternet.be)
//      Rafael Teixeira   (rafaelteixeirabr@hotmail.com)
//
// (C) 2003 Peter Van Isacker
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;

namespace System.Messaging{
  public class MessageQueueEnumerator : MarshalByRefObject, IEnumerator, IDisposable
  {
    private bool disposed;
    private ArrayList queueList;
    private int currentIndex;

    internal MessageQueueEnumerator (ArrayList queueList)
    {
      this.queueList = queueList;
      this.currentIndex = -1;
    }

    public MessageQueue Current
    {
      get
      {
        if (currentIndex < 0 || currentIndex >= queueList.Count)
          return null;
        return (MessageQueue) queueList[currentIndex];
      }
    }

    object IEnumerator.Current
    {
      get
      {
        if (currentIndex < 0 || currentIndex >= queueList.Count)
          return null;
        return queueList[currentIndex];
      }
    }

    public IntPtr LocatorHandle
    {
      [MonoTODO]
      get
      {
        throw new NotImplementedException ();
      }
    }

    [MonoTODO]
    public void Close ()
    {
    }

    public void Dispose ()
    {
      Dispose (true);
      GC.SuppressFinalize (this);
    }

    protected virtual void Dispose (bool disposing)
    {
      Close ();
      disposed = true;
    }

    public bool MoveNext ()
    {
      return (++currentIndex) < queueList.Count;
    }

    public void Reset ()
    {
      currentIndex = -1;
    }

    ~MessageQueueEnumerator ()
    {
      if (!disposed)
        Dispose (false);
    }
  }
}