Cocoa Distributed Objects - objective-c

Question

I've given myself a headache trying to figure out how to run this Distributed Objects demo. I can run it just fine locally on the same machine.
Here's the situation. I have a Server App that spawns a Client App [with OpenGLView] on a remote machine.
I can do this easy with AppleScript.
The Client App seems to Vend it's OpenGLView window OK:
clientPort = [[NSSocketPort alloc] initWithTCPPort:SERVER_PORT];
if(clientPort == nil) continue; else NSLog(#"Port OK");
clientConnection = [NSConnection connectionWithReceivePort:clientPort sendPort:nil];
if(clientConnection == nil) continue; else NSLog(#"Conn OK");
[[NSSocketPortNameServer sharedInstance] registerPort:clientPort name:#"DOTest3_0"];
//Vend Object
#try {
[clientConnection setRootObject:object];
NSLog([NSString stringWithFormat:#"Port %d: Vend OK", (SERVER_PORT + i)]);
return;
} #catch (...) {
NSLog([NSString stringWithFormat:#"Port %d: Vend Next", (SERVER_PORT + i)]);
}
The Server App finds the Port and Connection, but Raises a TimeOut exception:
// Create temporary Pointer to kGLView Object.
id <NSCoding, kGLViewProtocol> openGLView;
// Setup Port, Connection, & Proxy
portTest = (NSSocketPort *)[[NSSocketPortNameServer sharedInstance] portForName:#"DOTest3_0" host:#"*"];
if (portTest == nil ) continue ; else NSLog(#"Port OK");
connTest = [NSConnection connectionWithReceivePort:nil sendPort:portTest];
if (connTest == nil ) continue ; else NSLog(#"Conn OK");
openGLView = [[connTest rootProxy] retain];
if (openGLView == nil ) continue ; else NSLog(#"OpenGL OK");
[openGLView drawWithRotation: rotationAngle];
}
And I can't figure out for the life of Me WHY.
I get in the Console of the Client PC:
"Port OK"
"Conn OK"
"Port 8081: Vend OK"
I get in the Console of the Server PC:
"Port OK"
"Conn OK"
11/18/09 2:05:36 PM DOTest3[15278] [NSPortCoder sendBeforeTime:sendReplyPort:] timed out (10280263936.092180 280263936.092642) 1
Even if the TimeOuts are both set to 60 seconds.
Help!
-Stephen
Server: MacMini OS X 10.5
Client: MacPro OS X 10.6
Remote Login, Management, etc. are all enabled.
EDIT:
Taking NSResponder's suggestion, I've Vended the Controller, but it still isn't working.
Client/Vender:
-(void)vend:(id)object {
port = [[[NSSocketPort alloc] initWithTCPPort:[self tcpPort]]
retain];
conn = [[NSConnection connectionWithReceivePort:port sendPort:nil]
retain];
for (int i = 0; i < 10; i++) {
[[NSSocketPortNameServer sharedInstance] registerPort:port
name:[[self portName] stringByAppendingFormat:#"_%d", i]];
#try {
[conn setRootObject:object];
return;
} #catch (...) {
NSLog(#"Vend Next");
continue;
}
}
NSLog(#"Vend Failed");
}
Client Controller:
-(id)init {
self = [super init];
[self setRotationAngle:0.0f];
clientObj = [[Client alloc] initWithName:#"DOTest4"
Address:#"10.10.5.104" // mini
Port:48557];
[clientObj vend:self];
return self;
}
Server Controller:
-(IBAction)rotateClient:(id)sender {
NSArray *vendedObjects = [serverObj getVendedObjects];
id <NSCoding, ClientController_Protocol> proxy;
if (vendedObjects != nil) {
for (int i = 0; i < [vendedObjects count]; i++) {
proxy = [vendedObjects objectAtIndex:i];
[proxy rotate];
}
}
// release
[vendedObjects release];
}
Server/(grabs Vended Objects)
-(NSArray *)getVendedObjects {
NSArray *vendedObjects = [[[NSArray alloc] init] retain];
NSSocketPort *port;
NSConnection *conn;
for (int i = 0; i< 10; i++) {
// Get Port Object
port = (NSSocketPort *)[[NSSocketPortNameServer sharedInstance]
portForName:[[self portName] stringByAppendingFormat:#"_%d", i]
host:[self addressRemote]];
if (port == nil) continue;
// Create Connection with Timeouts
conn = [NSConnection connectionWithReceivePort:nil sendPort:port];
if (conn == nil) continue;
[conn setReplyTimeout:(NSTimeInterval)60.0];
[conn setRequestTimeout:(NSTimeInterval)60.0];
// Get VendedObject of Connection
vendedObjects = [[vendedObjects arrayByAddingObject:[conn rootProxy]] retain];
}
return vendedObjects;
}
Sigh... I'm sure I'm just overlooking something REALLY cocoa-basic here.
-S!

Answer 1

I've never seen anyone attempting to vend a view or a window across a DO link, and I'm surprised that it worked even on the local host. Anytime I've used DO, it's been from objects in the controller layer of the server to a corresponding controller in the client.