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//
// System.MarshalByRefObject.cs
//
// Authors:
// Miguel de Icaza (miguel@ximian.com)
// Lluis Sanchez Gual (lsg@ctv.es)
// Patrik Torstensson (totte_mono@yahoo.com)
//
// (C) Ximian, Inc. http://www.ximian.com
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// 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.Threading;
using System.Runtime.Remoting;
using System.Security.Permissions;
using System.Runtime.InteropServices;
namespace System
{
[Serializable]
[ComVisible (true)]
[StructLayout (LayoutKind.Sequential)]
public abstract class MarshalByRefObject
{
[NonSerialized]
#if !FEATURE_REMOTING
private object _identity; //Keep layout equal to avoid runtime issues
#else
private ServerIdentity _identity; // Holds marshalling iformation of the object
#endif
protected MarshalByRefObject ()
{
}
#if !FEATURE_REMOTING
internal ServerIdentity ObjectIdentity {
get { throw new NotSupportedException (); }
set { throw new NotSupportedException (); }
}
#else
internal Identity GetObjectIdentity (MarshalByRefObject obj, out bool IsClient)
{
IsClient = false;
Identity objId = null;
if (RemotingServices.IsTransparentProxy (obj)) {
objId = RemotingServices.GetRealProxy (obj).ObjectIdentity;
IsClient = true;
}
else {
objId = obj.ObjectIdentity;
}
return objId;
}
internal ServerIdentity ObjectIdentity {
get { return _identity; }
set { _identity = value; }
}
#endif
[SecurityPermission (SecurityAction.LinkDemand, Infrastructure = true)]
public virtual ObjRef CreateObjRef (Type requestedType)
{
#if !FEATURE_REMOTING
throw new NotSupportedException ();
#else
// This method can only be called when this object has been marshalled
if (_identity == null)
throw new RemotingException (Locale.GetText ("No remoting information was found for the object."));
return _identity.CreateObjRef (requestedType);
#endif
}
// corcompare says it is "virtual final", so there is likely
// an internal interface in .NET.
[SecurityPermission (SecurityAction.LinkDemand, Infrastructure = true)]
public object GetLifetimeService ()
{
#if !FEATURE_REMOTING
throw new NotSupportedException ();
#else
if (_identity == null)
return null;
else return _identity.Lease;
#endif
}
[SecurityPermission (SecurityAction.LinkDemand, Infrastructure = true)]
public virtual object InitializeLifetimeService ()
{
#if !FEATURE_REMOTING
throw new NotSupportedException ();
#else
if (_identity != null && _identity.Lease != null)
return _identity.Lease;
else
return new System.Runtime.Remoting.Lifetime.Lease();
#endif
}
protected MarshalByRefObject MemberwiseClone (bool cloneIdentity)
{
#if !FEATURE_REMOTING
throw new NotSupportedException ();
#else
MarshalByRefObject mbr = (MarshalByRefObject) MemberwiseClone ();
if (!cloneIdentity)
mbr._identity = null;
return mbr;
#endif
}
}
}
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