// Authors:
// Dietmar Maurer (dietmar@ximian.com)
// Lluis Sanchez Gual (lluis@ideary.com)
+// Patrik Torstensson
//
// (C) 2001 Ximian, Inc. http://www.ximian.com
//
using System;
+using System.Text;
using System.Reflection;
using System.Threading;
using System.Collections;
using System.Runtime.Remoting.Lifetime;
using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
+using System.IO;
namespace System.Runtime.Remoting
{
static RemotingServices ()
{
- app_id = "/" + Guid.NewGuid().ToString().Replace('-', '_') + "/";
-
- CreateServerIdentity (null, typeof(RemoteActivator), "RemoteActivationService.rem", ServiceType.Singleton);
+ RegisterInternalChannels ();
+ app_id = "/" + Guid.NewGuid().ToString().Replace('-', '_') + "/";
+ CreateWellKnownServerIdentity (typeof(RemoteActivator), "RemoteActivationService.rem", WellKnownObjectMode.Singleton);
}
private RemotingServices () {}
{
ReturnMessage result;
- MonoMethod method = (MonoMethod)reqMsg.MethodBase;
-
- try {
+ MonoMethod method = (MonoMethod) target.GetType().GetMethod(reqMsg.MethodName, BindingFlags.Public|BindingFlags.NonPublic|BindingFlags.Instance, null, (Type[]) reqMsg.MethodSignature, null);
+ object oldContext = CallContext.SetCurrentCallContext (reqMsg.LogicalCallContext);
+
+ try
+ {
object [] out_args;
object rval = InternalExecute (method, target, reqMsg.Args, out out_args);
- result = new ReturnMessage (rval, out_args, out_args.Length,
- reqMsg.LogicalCallContext, reqMsg);
- } catch (Exception e) {
+ // Collect parameters with Out flag from the request message
+
+ ParameterInfo[] parameters = method.GetParameters();
+ object[] returnArgs = new object [parameters.Length];
+
+ int n = 0;
+ int noa = 0;
+ foreach (ParameterInfo par in parameters)
+ {
+ if (par.IsOut && !par.ParameterType.IsByRef)
+ returnArgs [n++] = reqMsg.GetArg (par.Position);
+ else if (par.ParameterType.IsByRef)
+ returnArgs [n++] = out_args [noa++];
+ }
+
+ result = new ReturnMessage (rval, returnArgs, n, CallContext.CreateLogicalCallContext(), reqMsg);
+ }
+ catch (Exception e)
+ {
result = new ReturnMessage (e, reqMsg);
}
-
+
+ CallContext.RestoreCallContext (oldContext);
return result;
}
public static object Connect (Type classToProxy, string url)
{
- return GetRemoteObject(classToProxy, url, null, null);
+ ObjRef objRef = new ObjRef (classToProxy, url, null);
+ return GetRemoteObject (objRef, classToProxy);
}
public static object Connect (Type classToProxy, string url, object data)
{
- return GetRemoteObject (classToProxy, url, data, null);
+ ObjRef objRef = new ObjRef (classToProxy, url, data);
+ return GetRemoteObject (objRef, classToProxy);
+ }
+
+ public static bool Disconnect (MarshalByRefObject obj)
+ {
+ if (obj == null) throw new ArgumentNullException ("obj");
+
+ ServerIdentity identity;
+
+ if (IsTransparentProxy (obj))
+ {
+ // CBOs are always accessed through a proxy, even in the server, so
+ // for server CBOs it is ok to disconnect a proxy
+
+ RealProxy proxy = GetRealProxy(obj);
+ if (proxy.GetProxiedType().IsContextful && (proxy.ObjectIdentity is ServerIdentity))
+ identity = proxy.ObjectIdentity as ServerIdentity;
+ else
+ throw new ArgumentException ("The obj parameter is a proxy");
+ }
+ else
+ identity = obj.ObjectIdentity;
+
+ if (identity == null || !identity.IsConnected)
+ return false;
+ else
+ {
+ LifetimeServices.StopTrackingLifetime (identity);
+ DisposeIdentity (identity);
+ return true;
+ }
}
public static Type GetServerTypeForUri (string uri)
public static string GetObjectUri (MarshalByRefObject obj)
{
Identity ident = GetObjectIdentity(obj);
- if (ident != null) return ident.ObjectUri;
+ if (ident is ClientIdentity) return ((ClientIdentity)ident).TargetUri;
+ else if (ident != null) return ident.ObjectUri;
else return null;
}
public static object Unmarshal (ObjRef objref)
{
- return Unmarshal(objref, false);
+ return Unmarshal(objref, true);
}
public static object Unmarshal (ObjRef objref, bool fRefine)
{
// FIXME: use type name when fRefine==true
- Type requiredType = Type.GetType(objref.TypeInfo.TypeName);
- return GetRemoteObject(requiredType, null, objref.ChannelInfo.ChannelData, objref.URI);
+
+ Type classToProxy = fRefine ? objref.ServerType : typeof (MarshalByRefObject);
+ if (classToProxy == null) classToProxy = typeof (MarshalByRefObject);
+
+ if (objref.IsReferenceToWellKnow)
+ return GetRemoteObject(objref, classToProxy);
+ else
+ {
+ if (classToProxy.IsContextful)
+ {
+ // Look for a ProxyAttribute
+ ProxyAttribute att = (ProxyAttribute) Attribute.GetCustomAttribute (classToProxy, typeof(ProxyAttribute),true);
+ if (att != null)
+ return att.CreateProxy (objref, classToProxy, null, null).GetTransparentProxy();
+ }
+ return GetProxyForRemoteObject (objref, classToProxy);
+ }
}
public static ObjRef Marshal (MarshalByRefObject obj)
if (IsTransparentProxy (obj))
{
RealProxy proxy = RemotingServices.GetRealProxy(obj);
- if (proxy != null && proxy.ObjectIdentity != null)
+ Identity identity = proxy.ObjectIdentity;
+
+ if (identity != null)
{
- if (uri != null)
+ if (identity.ObjectType.IsContextful && !identity.IsConnected)
+ {
+ // Unregistered local contextbound object. Register now.
+ ClientActivatedIdentity cboundIdentity = (ClientActivatedIdentity)identity;
+ if (uri == null) uri = NewUri();
+ cboundIdentity.ObjectUri = uri;
+ RegisterServerIdentity (cboundIdentity);
+ cboundIdentity.StartTrackingLifetime ((ILease)obj.InitializeLifetimeService());
+ return cboundIdentity.CreateObjRef(requested_type);
+ }
+ else if (uri != null)
throw new RemotingException ("It is not possible marshal a proxy of a remote object");
return proxy.ObjectIdentity.CreateObjRef(requested_type);
}
if (requested_type == null) requested_type = obj.GetType();
- if (uri == null) uri = app_id + Environment.TickCount + "_" + next_id++;
- CreateServerIdentity (obj, requested_type, uri, ServiceType.ClientActivated);
+ if (uri == null)
+ {
+ uri = NewUri();
+ CreateClientActivatedServerIdentity (obj, requested_type, uri);
+ }
+ else
+ {
+ ClientActivatedIdentity identity = GetIdentityForUri (uri) as ClientActivatedIdentity;
+ if (identity == null || obj != identity.GetServerObject())
+ CreateClientActivatedServerIdentity (obj, requested_type, uri);
+ }
+
return obj.CreateObjRef(requested_type);
}
+ static string NewUri ()
+ {
+ return app_id + Environment.TickCount + "_" + next_id++;
+ }
+
public static RealProxy GetRealProxy (object proxy)
{
if (!IsTransparentProxy(proxy)) throw new RemotingException("Cannot get the real proxy from an object that is not a transparent proxy");
public static MethodBase GetMethodBaseFromMethodMessage(IMethodMessage msg)
{
- Type type = Type.GetType(msg.TypeName);
+ Type type = Type.GetType (msg.TypeName);
+ if (type == null)
+ throw new RemotingException ("Type '" + msg.TypeName + "' not found!");
+ BindingFlags bflags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
if (msg.MethodSignature == null)
- return type.GetMethod (msg.MethodName);
+ return type.GetMethod (msg.MethodName, bflags);
else
- return type.GetMethod (msg.MethodName, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, (Type[]) msg.MethodSignature, null);
+ return type.GetMethod (msg.MethodName, bflags, null, (Type[]) msg.MethodSignature, null);
}
public static void GetObjectData(object obj, SerializationInfo info, StreamingContext context)
{
if (obj == null) throw new ArgumentNullException ("obj");
- MarshalByRefObject mbr = (MarshalByRefObject)obj;
-
- ObjRef oref;
- Identity ident = GetObjectIdentity(mbr);
-
- if (ident != null)
- oref = mbr.CreateObjRef(null);
- else
- oref = Marshal (mbr);
-
+ ObjRef oref = Marshal ((MarshalByRefObject)obj);
oref.GetObjectData (info, context);
}
else return ident.CreateObjRef(null);
}
+ public static object GetLifetimeService (MarshalByRefObject obj)
+ {
+ if (obj == null) return null;
+ return obj.GetLifetimeService ();
+ }
+
+ public static IMessageSink GetEnvoyChainForProxy (MarshalByRefObject obj)
+ {
+ if (IsTransparentProxy(obj))
+ return ((ClientIdentity)GetRealProxy (obj).ObjectIdentity).EnvoySink;
+ else
+ throw new ArgumentException ("obj must be a proxy","obj");
+ }
+
+ public static void LogRemotingStage (int stage)
+ {
+ throw new NotImplementedException ();
+ }
+
[MonoTODO]
public static string GetSessionIdForMethodMessage(IMethodMessage msg)
{
public static bool IsMethodOverloaded(IMethodMessage msg)
{
Type type = msg.MethodBase.DeclaringType;
- MemberInfo[] members = type.GetMember (msg.MethodName, MemberTypes.Method, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);\r
- return members.Length > 1;\r
+ MemberInfo[] members = type.GetMember (msg.MethodName, MemberTypes.Method, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
+ return members.Length > 1;
}
public static bool IsObjectOutOfAppDomain(object tp)
public static bool IsObjectOutOfContext(object tp)
{
- Identity ident = GetObjectIdentity((MarshalByRefObject)tp);
+ ServerIdentity ident = GetObjectIdentity((MarshalByRefObject)tp) as ServerIdentity;
if (ident != null) return ident.Context != System.Threading.Thread.CurrentContext;
else return false;
}
public static bool IsOneWay(MethodBase method)
{
+ // TODO: use internal call for better performance
object[] atts = method.GetCustomAttributes (typeof (OneWayAttribute), false);
return atts.Length > 0;
}
+ public static bool IsAsyncMessage(IMessage msg)
+ {
+ if (! (msg is MonoMethodMessage)) return false;
+ else if (((MonoMethodMessage)msg).IsAsync) return true;
+ else if (IsOneWay (((MonoMethodMessage)msg).MethodBase)) return true;
+ else return false;
+ }
+
public static void SetObjectUriForMarshal(MarshalByRefObject obj, string uri)
{
if (IsTransparentProxy (obj)) throw new RemotingException ("SetObjectUriForMarshal method should only be called for MarshalByRefObjects that exist in the current AppDomain.");
Marshal (obj, uri);
}
-
#region Internal Methods
+ internal static object CreateClientProxy (ActivatedClientTypeEntry entry, object[] activationAttributes)
+ {
+ if (entry.ContextAttributes != null || activationAttributes != null)
+ {
+ ArrayList props = new ArrayList ();
+ if (entry.ContextAttributes != null) props.AddRange (entry.ContextAttributes);
+ if (activationAttributes != null) props.AddRange (activationAttributes);
+ return CreateClientProxy (entry.ObjectType, entry.ApplicationUrl, props.ToArray ());
+ }
+ else
+ return CreateClientProxy (entry.ObjectType, entry.ApplicationUrl, null);
+ }
+
+ internal static object CreateClientProxy (Type objectType, string url, object[] activationAttributes)
+ {
+ string activationUrl = url + "/RemoteActivationService.rem";
+
+ string objectUri;
+ IMessageSink sink = GetClientChannelSinkChain (activationUrl, null, out objectUri);
+
+ RemotingProxy proxy = new RemotingProxy (objectType, activationUrl, activationAttributes);
+ return proxy.GetTransparentProxy();
+ }
+
+ internal static object CreateClientProxy (WellKnownClientTypeEntry entry)
+ {
+ return Connect (entry.ObjectType, entry.ObjectUrl, null);
+ }
+
+ internal static object CreateClientProxyForContextBound (Type type, object[] activationAttributes)
+ {
+ if (type.IsContextful)
+ {
+ // Look for a ProxyAttribute
+ ProxyAttribute att = (ProxyAttribute) Attribute.GetCustomAttribute (type, typeof(ProxyAttribute), true);
+ if (att != null)
+ return att.CreateInstance (type);
+ }
+ RemotingProxy proxy = new RemotingProxy (type, ChannelServices.CrossContextUrl, activationAttributes);
+ return proxy.GetTransparentProxy();
+ }
+
internal static Identity GetIdentityForUri (string uri)
{
lock (uri_hash)
return obj.ObjectIdentity;
}
- private static Identity GetClientIdentity(Type requiredType, string url, object channelData, string remotedObjectUri)
+ internal static ClientIdentity GetOrCreateClientIdentity(ObjRef objRef, Type proxyType)
{
// This method looks for an identity for the given url.
// If an identity is not found, it creates the identity and
// Creates the client sink chain for the given url or channelData.
// It will also get the object uri from the url.
+ object channelData = objRef.ChannelInfo != null ? objRef.ChannelInfo.ChannelData : null;
+ string url = (channelData == null) ? objRef.URI : null;
+
string objectUri;
+ IMessageSink sink = GetClientChannelSinkChain (url, channelData, out objectUri);
+
+ if (objectUri == null) objectUri = objRef.URI;
+
+ lock (uri_hash)
+ {
+ ClientIdentity identity = uri_hash [objRef.URI] as ClientIdentity;
+ if (identity != null)
+ return identity; // Object already registered
+
+ // Creates an identity and a proxy for the remote object
+
+ identity = new ClientIdentity (objectUri, objRef);
+ identity.ChannelSink = sink;
+
+ if (proxyType != null)
+ {
+ RemotingProxy proxy = new RemotingProxy (proxyType, identity);
+ identity.ClientProxy = (MarshalByRefObject) proxy.GetTransparentProxy();
+ }
+
+ // Registers the identity
+ uri_hash [objRef.URI] = identity;
+ return identity;
+ }
+ }
+
+ static IMessageSink GetClientChannelSinkChain(string url, object channelData, out string objectUri)
+ {
IMessageSink sink = ChannelServices.CreateClientChannelSinkChain (url, channelData, out objectUri);
if (sink == null)
{
- if (url != null) {
+ if (url != null)
+ {
string msg = String.Format ("Cannot create channel sink to connect to URL {0}. An appropriate channel has probably not been registered.", url);
throw new RemotingException (msg);
}
- else {
+ else
+ {
string msg = String.Format ("Cannot create channel sink to connect to the remote object. An appropriate channel has probably not been registered.", url);
throw new RemotingException (msg);
}
}
+ return sink;
+ }
- if (objectUri == null) objectUri = remotedObjectUri;
+ internal static ClientActivatedIdentity CreateContextBoundObjectIdentity(Type objectType)
+ {
+ ClientActivatedIdentity identity = new ClientActivatedIdentity (null, objectType);
+ identity.ChannelSink = ChannelServices.CrossContextChannel;
+ return identity;
+ }
- lock (uri_hash)
- {
- Identity identity = (Identity)uri_hash [objectUri];
- if (identity != null)
- return identity; // Object already registered
+ internal static ClientActivatedIdentity CreateClientActivatedServerIdentity(MarshalByRefObject realObject, Type objectType, string objectUri)
+ {
+ ClientActivatedIdentity identity = new ClientActivatedIdentity (objectUri, objectType);
+ identity.AttachServerObject (realObject, Context.DefaultContext);
+ RegisterServerIdentity (identity);
+ identity.StartTrackingLifetime ((ILease)realObject.InitializeLifetimeService ());
+ return identity;
+ }
- // Creates an identity and a proxy for the remote object
+ internal static ServerIdentity CreateWellKnownServerIdentity(Type objectType, string objectUri, WellKnownObjectMode mode)
+ {
+ ServerIdentity identity;
- identity = new Identity (objectUri, null, requiredType, ServiceType.ClientProxy);
- identity.ClientSink = sink;
+ if (mode == WellKnownObjectMode.SingleCall)
+ identity = new SingleCallIdentity(objectUri, Context.DefaultContext, objectType);
+ else
+ identity = new SingletonIdentity(objectUri, Context.DefaultContext, objectType);
- RemotingProxy proxy = new RemotingProxy (requiredType, identity);
+ RegisterServerIdentity (identity);
+ return identity;
+ }
- identity.RealObject = (MarshalByRefObject) proxy.GetTransparentProxy();
+ private static void RegisterServerIdentity(ServerIdentity identity)
+ {
+ lock (uri_hash)
+ {
+ if (uri_hash.ContainsKey (identity.ObjectUri))
+ throw new RemotingException ("Uri already in use: " + identity.ObjectUri);
- // Registers the identity
- uri_hash [objectUri] = identity;
- return identity;
+ uri_hash[identity.ObjectUri] = identity;
}
}
- internal static Identity CreateServerIdentity(MarshalByRefObject realObject, Type objectType, string objectUri, ServiceType serviceType)
+ internal static object GetProxyForRemoteObject (ObjRef objref, Type classToProxy)
{
- // This method looks for an identity for the given object.
- // If an identity is not found, it creates the identity and
- // assigns it to the given object
+ ClientActivatedIdentity identity = GetIdentityForUri (objref.URI) as ClientActivatedIdentity;
+ if (identity != null) return identity.GetServerObject ();
+ else return GetRemoteObject (objref, classToProxy);
+ }
- lock (uri_hash)
- {
- Identity identity = (Identity)uri_hash [objectUri];
- if (identity != null)
- {
- if (realObject != identity.RealObject)
- throw new RemotingException ("Uri already in use: " + objectUri);
+ internal static object GetRemoteObject(ObjRef objRef, Type proxyType)
+ {
+ ClientIdentity id = GetOrCreateClientIdentity (objRef, proxyType);
+ return id.ClientProxy;
+ }
- return identity; // Object already registered
- }
+ internal static object GetDomainProxy(AppDomain domain)
+ {
+ byte[] data = null;
- identity = new Identity (objectUri, Context.DefaultContext, objectType, serviceType);
- identity.RealObject = realObject;
+ Context currentContext = Thread.CurrentContext;
+ AppDomain currentDomain = AppDomain.InternalSetDomain (domain);
+ try
+ {
+ data = domain.GetMarshalledDomainObjRef ();
+ }
+ finally
+ {
+ AppDomain.InternalSetDomain (currentDomain);
+ AppDomain.InternalSetContext (currentContext);
+ }
- // Registers the identity
- uri_hash[objectUri] = identity;
+ MemoryStream stream = new MemoryStream (data);
+ ObjRef appref = (ObjRef) CADSerializer.DeserializeObject (stream);
+ return (AppDomain) RemotingServices.Unmarshal(appref);
+ }
- if (realObject != null)
- realObject.ObjectIdentity = identity;
+ private static void RegisterInternalChannels()
+ {
+ CrossAppDomainChannel.RegisterCrossAppDomainChannel();
+ }
+
+ internal static void DisposeIdentity (ServerIdentity ident)
+ {
+ lock (uri_hash)
+ {
+ uri_hash.Remove (ident.ObjectUri);
+ }
+ }
- LifetimeServices.TrackLifetime (identity);
+ internal static Identity GetMessageTargetIdentity (IMessage msg)
+ {
+ // Returns the identity where the message is sent
- return identity;
+ if (msg is IInternalMessage)
+ return ((IInternalMessage)msg).TargetIdentity;
+
+ lock (uri_hash)
+ {
+ return uri_hash [((IMethodMessage)msg).Uri] as ServerIdentity;
}
}
- internal static object GetRemoteObject(Type requiredType, string url, object channelData, string remotedObjectUri)
+ internal static void SetMessageTargetIdentity (IMessage msg, Identity ident)
{
- Identity id = GetClientIdentity(requiredType, url, channelData, remotedObjectUri);
- return id.RealObject;
+ if (msg is IInternalMessage)
+ ((IInternalMessage)msg).TargetIdentity = ident;
}
-
- internal static void DisposeObject (MarshalByRefObject obj)
+
+ internal static bool UpdateOutArgObject (ParameterInfo pi, object local, object remote)
{
- IDisposable disp = obj as IDisposable;
- if (disp != null) disp.Dispose ();
-
- Identity ident = GetObjectIdentity (obj);
- if (ident == null) return;
- else uri_hash.Remove (ident.ObjectUri);
+ if (local is StringBuilder)
+ {
+ StringBuilder sb = local as StringBuilder;
+ sb.Remove (0, sb.Length);
+ sb.Append (remote.ToString());
+ return true;
+ }
+ else if (pi.ParameterType.IsArray && ((Array)local).Rank == 1)
+ {
+ Array alocal = (Array) local;
+ if (alocal.Rank == 1)
+ {
+ Array.Copy ((Array) remote, alocal, alocal.Length);
+ return true;
+ }
+ else
+ {
+ // TODO
+ }
+ }
+ return false;
}
#endregion
-
}
-
-
}
projects / mono.git / blobdiff