Distributed programming: Difference between revisions

pool ActionObject *action = [[NSAutoreleasePoolActionObject alloc] init];

NSSocketPort *port = (NSSocketPort *)[NSSocketPort port];

// initWithTCPPort: 1234 and other methods are not supported yet

// by GNUstep

NSConnection *connect = [NSConnection

connectionWithReceivePort: port

sendPort: port]; // or sendPort: nil

[connect setRootObject: action];

/* "vend" the object ActionObject as DistributedAction; on GNUstep

the Name Server that allows the resolution of the registered name

is bound to port 538 */

if (![connect registerName:@"DistributedAction"

withNameServer: [NSSocketPortNameServer sharedInstance] ] == NO)

{

NSLog(@"can't register the server DistributedAction");

exit(EXIT_FAILURE);

}

NSLog(@"waiting for messages...");

[[NSRunLoop currentRunLoop] run];

[NSConnection{

host: @"localhost"exit(EXIT_FAILURE);

NSArray *args = [[NSProcessInfo processInfo] arguments];

if ([args count] == 1)

{

NSLog(@"specify a message");

exit(EXIT_FAILURE);

}

NSString *msg = [args objectAtIndex: [1];

// "send" (call the selector "sendMessage:" of the (remote) object

// action) the first argument's text as msg, store the message "sent

// back" and then show it in the log

NSString *backmsg = [action sendMessage: msg];

NSLog("%@", backmsg);