Using NSURLConnection and NSURLRequest with cocos2d-x

Hi,
I have a simple app for iOS(pure objc) that I use the following code:

    NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://fabiosistemas.com.br/a=user&b=extra&c=100"]
                                              cachePolicy:NSURLRequestUseProtocolCachePolicy
                                          timeoutInterval:60.0];

    NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
    if (theConnection) {
        receivedData = [[NSMutableData data] retain] ;

    } else {
        // error message - Inform the user that the connection failed.
    }

And I have the following methods that I use to manage the connection

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{    
    // it can be called multiple times, for example in the case of a
    // redirect, so each time we reset the data.
    // receivedData is declared as a method instance elsewhere
    NSLog(@"zzz");
    [receivedData setLength:0];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    // append the new data to the receivedData
    // receivedData is declared as a method instance elsewhere
    NSLog(@"xxxx");
    [receivedData appendData:data];
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    //NSLog(@"Connection failed! Error - %@ %@",
    NSLog(@"yyy");
}

- (void) connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSLog(@"Succeeded! Received %d bytes of data",[receivedData length]);

}

But I want to use this within cocos2d-x, how I can do that, I already rename the cpp files to mm files, but I don’t know how I can use the management(I don’t know the correct name) methods