Swift

Bind and Listen on a Randomly Selected Unused Port

See more Socket/SSL/TLS Examples

Demonstrates how to bind and listen on a randomly selected unused port.

Note:The ListenPort property used in this example is available starting in Chilkat v9.5.0.59.

Swift

func chilkatTest() {
    var success: Bool = false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let listenSocket = CkoSocket()!

    // Pass a value of 0 for the port number to randomly select
    // an unused port.
    // (The 2nd argument allows for a backlog of 25 pending connection requests when accepting connections.)
    success = listenSocket.bindAndListen(port: 5555, backlog: 25)
    if success != true {
        print("\(listenSocket.lastErrorText!)")
        return
    }

    // Find out what port was chosen.
    // Note: The ListenPort propety was added in Chilkat v9.5.0.59
    var listenPort: Int = listenSocket.listenPort.intValue
    print("Chosen listen port = \(listenPort)")

}