How to terminate another thread?

[Stefan Urbanek]

Hello,

I need a proxy of an object in another thread for handling asynchronous
messages. One object may handle messages in more than one thread. I do it like
described later. When the proxy is no more needed I would like to terminate
the thread. Is there a way how it is possible to control another thread?

--- CODE BEGIN ---
 
static NSMutableDictionary *requestDict = nil;
static int                  requestID = 0;

@implementation NSObject(AsynchronousProxy)
- (NSDistantObject *)proxyInNewThread
{
    NSMutableArray  *array = [NSMutableArray array];
    NSConnection    *connection;
    NSDictionary    *dict;
    NSPort          *port1;
    NSPort          *port2;
    NSLock          *lock;
    NSDistantObject *proxy;
    NSNumber        *request;
    
    NSLog(@"Creating new thread proxy for '%@'", self);
    
    if(!requestDict)
    {
        requestDict = [[NSMutableDictionary alloc] init];
    }
    
    port1 = [NSPort port];
    port2 = [NSPort port];

    connection = [[NSConnection alloc] initWithReceivePort:port1
                                                  sendPort:port2];
    [connection setRootObject:self];

    request = [NSNumber numberWithInt:requestID];
    requestID ++;

    /* Ports switched here. */
    dict = [NSDictionary dictionaryWithObjectsAndKeys:
                                port2,     @"ReceivePort",
                                port1,     @"SendPort",
                                request,   @"ID",
                                nil,        nil];

    [NSThread
detachNewThreadSelector:@selector(_establishThreadConnectionUsingParameters:)
                             toTarget:self
                           withObject:dict];

    NSLog(@"Waiting for connection '%@' in new thread", request);

    while(!(proxy = [requestDict objectForKey:request]))
    {
        [[NSRunLoop currentRunLoop] runUntilDate: 
                            [NSDate dateWithTimeIntervalSinceNow: 1]];
        NSLog(@"Still waiting '%@'", requestDict);
    }

    NSLog(@"Connection established to %@", proxy);

    RETAIN(proxy);

    [requestDict removeObjectForKey:request];
    
    return AUTORELEASE(proxy);
}
- (void)_establishThreadConnectionUsingParameters:(NSDictionary *)dict
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    NSConnection      *connection;
    id                 proxy;
    
    NSLog(@"Establishing connection to %@", self);

    connection = [NSConnection
                    connectionWithReceivePort:[dict
objectForKey:@"ReceivePort"]
                                     sendPort:[dict
objectForKey:@"SendPort"]];

    proxy = [connection rootProxy];

    [proxy _concludeNewThreadConnectionTo:self 
                                requestID:[dict objectForKey:@"ID"]];

    NSLog(@"Connection established");
    [[NSRunLoop currentRunLoop] run];

    NSLog(@"Established connection died");
    RELEASE(pool);

    return;
}
- _concludeNewThreadConnectionTo:(id)anObject 
                       requestID:(NSString *)request
{
    NSLog(@"Conclude connection '%@' 0x%p", request, anObject);
    [requestDict setObject:anObject forKey:request];
}
@end

-- CODE END ---

Tahnk you very much for any help.

Stefan