Implement Timeout in HTTP Post - objective-c

Question

What is the best way to implement a connection timeout (let's say, 20 seconds) within an HTTP post connection?
My current code is as follows:
-(NSData*) postData: (NSString*) strData
{
//postString is the STRING TO BE POSTED
NSString *postString;
//this is the string to send
postString = #"data=";
postString = [postString stringByAppendingString:strData];
NSURL *url = [NSURL URLWithString:#"MYSERVERHERE"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [postString length]];
//setting prarameters of the POST connection
[request setHTTPMethod:#"POST"];
[request addValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request addValue:msgLength forHTTPHeaderField:#"Content-Length"];
[request addValue:#"en-US" forHTTPHeaderField:#"Content-Language"];
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
[request setTimeoutInterval:10.0];
NSLog(#"%#",postString);
NSURLResponse *response;
NSError *error;
NSLog(#"Starting the send!");
//this sends the information away. everybody wave!
NSData *urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(#"Just finished receiving!");
if (&error) //OR TIMEOUT
{
NSLog(#"ERROR!");
NSString *errorString = [NSString stringWithFormat:#"ERROR"];
urlData = [errorString dataUsingEncoding:NSUTF8StringEncoding];
}
return urlData;
}
Obviously the timeout interval is set to 10.0, but nothing seems to happen when those ten seconds hit.

Answer 1

See:
NSMutableURLRequest timeout interval not taken into consideration for POST requests
Apparently timeouts under 240 seconds are ignored. The highest voted answer in that question links to a solution. However, I would simply recommend using the ASIHTTPRequest library instead.
http://allseeing-i.com/ASIHTTPRequest/