CODEWITHSUNDEEP
iosswift
Makalele
Makalele

Reputation: 7551

Using Simple Ping in swift (iOS)

I'm trying to use Apple's class: Simple Ping, but I can't get this working.

When I'm running example mac os x project it's working:

2015-06-17 00:03:22.569 SimplePing[20386:3133535] pinging 192.168.1.102

2015-06-17 00:03:22.569 SimplePing[20386:3133535] #0 sent

2015-06-17 00:03:22.570 SimplePing[20386:3133535] #0 received

2015-06-17 00:03:23.570 SimplePing[20386:3133535] #1 sent

2015-06-17 00:03:23.571 SimplePing[20386:3133535] #1 received

etc..

But when I do it from my ios (swift) app:

let pinger = SimplePing(hostName: "192.168.1.102")
pinger.delegate = self;
pinger.start()

do {
    NSRunLoop.currentRunLoop().runMode(NSDefaultRunLoopMode, beforeDate: NSDate.distantFuture() as! NSDate)
} while(pinger != nil)

Not sure is do..while loop is needed - probably not needed. Anyway I tried without it too.

And I've added SimplePingDelegate to my class:

    func simplePing(pinger: SimplePing!, didFailToSendPacket packet: NSData!, error: NSError!) {
        println("didFailToSendPacket")
    }

    func simplePing(pinger: SimplePing!, didFailWithError error: NSError!) {
        println("didFailWithError")
    }

    func simplePing(pinger: SimplePing!, didReceivePingResponsePacket packet: NSData!) {
        println("didReceivePingResponsePacket")
    }

    func simplePing(pinger: SimplePing!, didReceiveUnexpectedPacket packet: NSData!) {
        println("didReceiveUnexpectedPacket")
    }

    func simplePing(pinger: SimplePing!, didSendPacket packet: NSData!) {
        println("didSendPacket")
    }

    func simplePing(pinger: SimplePing!, didStartWithAddress address: NSData!) {
        println("didStartWithAddress")
    }

So it gives me output:

2015-06-17 00:32:12.368 Available[938:150352] CFHostStartInfoResolution

2015-06-17 00:32:12.374 Available[938:150352] >HostResolveCallback

didStartWithAddress

other functions aren't called. Why?

Btw. I've also tried moving pinger into class variable like this:

var pinger: SimplePing?

No difference at all.

How can I fix this?

Upvotes: 3

Views: 16501

Answers (1)

Artal
Artal

Reputation: 9143

Not sure why this doesn't work, but you can call the ping method yourself once the address is resolved.

A variable to tell you that you can start pinging:

var canStartPinging = false

The code that calls the ping:

let pinger = SimplePing(hostName: "www.apple.com")
pinger.delegate = self;
pinger.start()

do {
    if (canStartPinging) {
        pinger.sendPingWithData(nil)
    }
    NSRunLoop.currentRunLoop().runMode(NSDefaultRunLoopMode, beforeDate: NSDate.distantFuture() as! NSDate)
} while(pinger != nil)

The SimplePing delegate method to wait for before you can start pinging:

func simplePing(pinger: SimplePing!, didStartWithAddress address: NSData!) {
    println("didStartWithAddress")
    canStartPinging = true
}

Upvotes: 2

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