64 bytes from 123.30.53.19: icmp_seq=0 ttl=249 time=2.587 ms, how to get this? just like when ping on mac terminal.

I have a problem on my Mac app. I want to ping 30 IPs every 30 seconds. And when I do this, I found my app's memory keep increasing. And when ping stops, the memory won't reduce. Then I start a testing project and get the same result. But if there is a few IPs and not so high frequency, all is work fine.

Am I use it in the wrong way?

Hi,

I would like to know in detail what is the use of the following function. Anybody could you please explain in detail because I am facing timeout issue while try to connecting with wifi network.

[self performSelector:@selector(endTime) withObject:nil afterDelay:2];

is it necessary to call above function and what will be the effect if we would not use this function.
Please explain in detail.

Thanks in advance.

• (void)go {
  if ([NSThread isMainThread]) {
  [self.simplePing start];
  //[self performSelector:@selector(endTime) withObject:nil afterDelay:2]; // This timeout is what retains the ping helper
  } else {
  dispatch_sync(dispatch_get_main_queue(), ^{
  NSLog(@"Moving ping to main thread");
  [self.simplePing start];
  // [self performSelector:@selector(endTime) withObject:nil afterDelay:2];
  });
  }

}

was wondering if there was a way to get ttl and ping time.

It looks like didReceivePingResponsePacket is never called. The timeout occurs and the ping fails. Even if I change the timeout to 10 seconds it is never fired once.....any ideas?

If you implement the SimplePing delegates in a view controller it works as expected.

I have tried multiple IP's that I know are up on my local network (I can ping them in Terminal).

[NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(pingAddress) userInfo:nil repeats:YES];

ping a series of IPs, it will block the main thread