//
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('-', '_') + "/";
-
+ RegisterInternalChannels ();
+ app_id = Guid.NewGuid().ToString().Replace('-', '_') + "/";
CreateWellKnownServerIdentity (typeof(RemoteActivator), "RemoteActivationService.rem", WellKnownObjectMode.Singleton);
}
{
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)
{
ObjRef objRef = new ObjRef (classToProxy, url, null);
- return GetRemoteObject(objRef);
+ return GetRemoteObject (objRef, classToProxy);
}
public static object Connect (Type classToProxy, string url, object data)
{
ObjRef objRef = new ObjRef (classToProxy, url, data);
- return GetRemoteObject(objRef);
+ 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)
{
- Identity ident = GetIdentityForUri (uri);
+ ServerIdentity ident = GetIdentityForUri (uri) as ServerIdentity;
if (ident == null) return null;
return ident.ObjectType;
}
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 classToProxy = fRefine ? objref.ServerType : typeof (MarshalByRefObject);
+ if (classToProxy == null) classToProxy = typeof (MarshalByRefObject);
if (objref.IsReferenceToWellKnow)
- return GetRemoteObject(objref);
+ return GetRemoteObject(objref, classToProxy);
else
{
- ClientActivatedIdentity identity = uri_hash [objref.URI] as ClientActivatedIdentity;
- if (identity != null) return identity.GetServerObject ();
- else return GetRemoteObject (objref);
+ 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);
}
}
if (IsTransparentProxy (obj))
{
RealProxy proxy = RemotingServices.GetRealProxy(obj);
- if (proxy != null && proxy.ObjectIdentity != null)
+ Identity identity = proxy.ObjectIdentity;
+
+ if (identity != null)
{
- if (uri != null)
- throw new RemotingException ("It is not possible marshal a proxy of a remote object");
+ if (proxy.GetProxiedType().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 (uri == null)
{
- uri = app_id + Environment.TickCount + "_" + next_id++;
- CreateClientActivatedServerIdentity (obj, requested_type, uri);
+ if (obj.ObjectIdentity == null)
+ {
+ uri = NewUri();
+ CreateClientActivatedServerIdentity (obj, requested_type, uri);
+ }
}
else
{
- ClientActivatedIdentity identity = uri_hash [uri] as ClientActivatedIdentity;
+ ClientActivatedIdentity identity = GetIdentityForUri ("/" + uri) as ClientActivatedIdentity;
if (identity == null || obj != identity.GetServerObject())
CreateClientActivatedServerIdentity (obj, requested_type, uri);
}
- return obj.CreateObjRef(requested_type);
+ if (IsTransparentProxy (obj))
+ return RemotingServices.GetRealProxy(obj).ObjectIdentity.CreateObjRef (requested_type);
+ else
+ return obj.CreateObjRef(requested_type);
+ }
+
+ static string NewUri ()
+ {
+ int n = Interlocked.Increment (ref next_id);
+ return app_id + Environment.TickCount + "_" + n + ".rem";
}
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");
+ if (!IsTransparentProxy(proxy)) throw new RemotingException("Cannot get the real proxy from an object that is not a transparent proxy.");
return (RealProxy)((TransparentProxy)proxy)._rp;
}
{
Type type = Type.GetType (msg.TypeName);
if (type == null)
- throw new RemotingException ("Type '" + msg.TypeName + "' not found!");
+ throw new RemotingException ("Type '" + msg.TypeName + "' not found.");
BindingFlags bflags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
if (msg.MethodSignature == null)
else return ident.CreateObjRef(null);
}
- [MonoTODO]
+ 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 ();
+ }
+
public static string GetSessionIdForMethodMessage(IMethodMessage msg)
{
- throw new NotImplementedException ();
+ // It seems that this it what MS returns.
+ return msg.Uri;
}
public static bool IsMethodOverloaded(IMethodMessage msg)
{
+ // TODO: use internal call for better performance
Type type = msg.MethodBase.DeclaringType;
MemberInfo[] members = type.GetMember (msg.MethodName, MemberTypes.Method, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
return members.Length > 1;
public static bool IsObjectOutOfAppDomain(object tp)
{
+ // TODO: use internal call for better performance
Identity ident = GetObjectIdentity((MarshalByRefObject)tp);
if (ident != null) return !ident.IsFromThisAppDomain;
else return false;
public static bool IsObjectOutOfContext(object tp)
{
+ // TODO: use internal call for better performance
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;
}
+ internal 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.");
#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 (Identity)uri_hash [uri];
+ return (Identity)uri_hash [GetNormalizedUri(uri)];
}
}
return obj.ObjectIdentity;
}
- private static ClientIdentity GetOrCreateClientIdentity(ObjRef objRef)
+ internal static ClientIdentity GetOrCreateClientIdentity(ObjRef objRef, Type proxyType, out object clientProxy)
{
// This method looks for an identity for the given url.
// If an identity is not found, it creates the identity and
string url = (channelData == null) ? objRef.URI : null;
string objectUri;
- IMessageSink sink = ChannelServices.CreateClientChannelSinkChain (url, channelData, out objectUri);
- if (sink == 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 {
- 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);
- }
- }
+ 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
+ clientProxy = null;
+ string uri = GetNormalizedUri (objRef.URI);
+
+ ClientIdentity identity = uri_hash [uri] as ClientIdentity;
+ if (identity != null)
+ {
+ // Object already registered
+ clientProxy = identity.ClientProxy;
+ if (clientProxy != null) return identity;
+
+ // The proxy has just been GCed, so its identity cannot
+ // be reused. Just dispose it.
+ DisposeIdentity (identity);
+ }
// Creates an identity and a proxy for the remote object
identity = new ClientIdentity (objectUri, objRef);
- identity.ClientSink = sink;
-
- RemotingProxy proxy = new RemotingProxy (Type.GetType (objRef.TypeInfo.TypeName), identity);
- identity.ClientProxy = (MarshalByRefObject) proxy.GetTransparentProxy();
+ identity.ChannelSink = sink;
// Registers the identity
- uri_hash [objRef.URI] = identity;
+ uri_hash [uri] = identity;
+
+ if (proxyType != null)
+ {
+ RemotingProxy proxy = new RemotingProxy (proxyType, identity);
+ clientProxy = proxy.GetTransparentProxy();
+ identity.ClientProxy = (MarshalByRefObject) clientProxy;
+ }
+
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)
+ {
+ 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
+ {
+ 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;
+ }
+
+ internal static ClientActivatedIdentity CreateContextBoundObjectIdentity(Type objectType)
+ {
+ ClientActivatedIdentity identity = new ClientActivatedIdentity (null, objectType);
+ identity.ChannelSink = ChannelServices.CrossContextChannel;
+ return identity;
+ }
+
internal static ClientActivatedIdentity CreateClientActivatedServerIdentity(MarshalByRefObject realObject, Type objectType, string objectUri)
{
- ClientActivatedIdentity identity = new ClientActivatedIdentity (objectUri, Context.DefaultContext, objectType);
- identity.AttachServerObject (realObject);
+ ClientActivatedIdentity identity = new ClientActivatedIdentity (objectUri, objectType);
+ identity.AttachServerObject (realObject, Context.DefaultContext);
RegisterServerIdentity (identity);
+ identity.StartTrackingLifetime ((ILease)realObject.InitializeLifetimeService ());
return identity;
}
return identity;
}
- private static void RegisterServerIdentity(Identity identity)
+ private static void RegisterServerIdentity(ServerIdentity identity)
{
lock (uri_hash)
{
if (uri_hash.ContainsKey (identity.ObjectUri))
- throw new RemotingException ("Uri already in use: " + identity.ObjectUri);
+ throw new RemotingException ("Uri already in use: " + identity.ObjectUri + ".");
uri_hash[identity.ObjectUri] = identity;
}
}
- internal static object GetRemoteObject(ObjRef objRef)
+ internal static object GetProxyForRemoteObject (ObjRef objref, Type classToProxy)
{
- ClientIdentity id = GetOrCreateClientIdentity (objRef);
- return id.ClientProxy;
+ ClientActivatedIdentity identity = GetIdentityForUri (objref.URI) as ClientActivatedIdentity;
+ if (identity != null) return identity.GetServerObject ();
+ else return GetRemoteObject (objref, classToProxy);
+ }
+
+ internal static object GetRemoteObject(ObjRef objRef, Type proxyType)
+ {
+ object proxy;
+ GetOrCreateClientIdentity (objRef, proxyType, out proxy);
+ return proxy;
}
internal static object GetDomainProxy(AppDomain domain)
{
- ObjRef appRef = null;
+ byte[] data = null;
- // Make sure that the channels is active in this domain
- RegisterInternalChannels();
+ Context currentContext = Thread.CurrentContext;
- // this should use contexts in the future
- AppDomain currentDomain = AppDomain.InternalSetDomain (domain);
- try
+ try
{
- // Make sure that our new domain also has the internal channels
- RegisterInternalChannels();
-
- appRef = RemotingServices.Marshal(domain, null, null);
+ data = (byte[])AppDomain.InvokeInDomain (domain, typeof (AppDomain).GetMethod ("GetMarshalledDomainObjRef", BindingFlags.Instance|BindingFlags.NonPublic), domain, null);
}
- finally
+ finally
{
- AppDomain.InternalSetDomain (currentDomain);
- }
+ AppDomain.InternalSetContext (currentContext);
+ }
- return (AppDomain) RemotingServices.Unmarshal(appRef);
+ MemoryStream stream = new MemoryStream (data);
+ ObjRef appref = (ObjRef) CADSerializer.DeserializeObject (stream);
+ return (AppDomain) RemotingServices.Unmarshal(appref);
}
private static void RegisterInternalChannels()
internal static void DisposeIdentity (Identity ident)
{
- uri_hash.Remove (ident.ObjectUri);
+ lock (uri_hash)
+ {
+ if (!ident.Disposed) {
+ ClientIdentity clientId = ident as ClientIdentity;
+ if (clientId != null)
+ uri_hash.Remove (GetNormalizedUri (clientId.TargetUri));
+ else
+ uri_hash.Remove (ident.ObjectUri);
+
+ ident.Disposed = true;
+ }
+ }
}
- internal static ServerIdentity GetMessageTargetIdentity (IMessage msg)
+ internal static Identity GetMessageTargetIdentity (IMessage msg)
{
// Returns the identity where the message is sent
- // TODO: check for identity embedded in MethodCall
+
+ if (msg is IInternalMessage)
+ return ((IInternalMessage)msg).TargetIdentity;
lock (uri_hash)
{
- return uri_hash [((IMethodMessage)msg).Uri] as ServerIdentity;
+ string uri = GetNormalizedUri (((IMethodMessage)msg).Uri);
+ return uri_hash [uri] as ServerIdentity;
}
}
+ internal static void SetMessageTargetIdentity (IMessage msg, Identity ident)
+ {
+ if (msg is IInternalMessage)
+ ((IInternalMessage)msg).TargetIdentity = ident;
+ }
+
+ internal static bool UpdateOutArgObject (ParameterInfo pi, object local, object remote)
+ {
+ 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;
+ }
+
+ static string GetNormalizedUri (string uri)
+ {
+ if (uri.StartsWith ("/")) return uri.Substring (1);
+ else return uri;
+ }
+
#endregion
}
}
projects / mono.git / blobdiff