Asyncsocket on iOS stuck at delegates - ios

Question

I am new to objective C, as a whole and iOS in particular, but i spent the last day to learn it.
i've been trying to create a simple app that reads data from a socket.
I understood that Asyncsocket is the best solution and have started working with it, but I encountered a problem.. it goes through all the delegates (connected to host, read data, disconnected) but then it drifts off and gets stuck somewhere.
heres the code:
- (void) connect:(NSString *)ip PORT:(NSInteger)port
{
//open asyncsoket
connectSocket = [[AsyncSocket alloc] initWithDelegate:self];
[connectSocket setDelegate:self];
// open connection
NSError *error = nil;
if (![connectSocket connectToHost:ip onPort:port error:&error]) {
NSLog(#"Error starting client: %#", error);
return;
}
}
- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port{
// if connection was succeful read from socket
NSLog(#"connected to server");
[sock readDataWithTimeout:-1.0 tag:0];
}
- (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag{
//if did read data
[connectSocket readDataWithTimeout:-1 tag:0];
to_pass = data;
[sock disconnect];
}
- (void)onSocketDidDisconnect:(AsyncSocket *)sock{
// nothing to do
}
- (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err{
//nothing to do
}
if i follow by break points it seems i goes through all those it needs, but then goes to assembly code and stops here:
libsystem_kernel.dylib`mach_msg_trap:
0x2178f70: movl $4294967265, %eax
0x2178f75: calll 0x217f4bc ; _sysenter_trap
0x2178f7a: ret ----> right here
0x2178f7b: nop