Swift computed variable that lets you know if a debugger is currently attached to the process

Utility.swift

class Utlity {

      internal var isDebuggerAttached: Bool {
        var info = kinfo_proc()
        var mib : [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid()]
        var size = MemoryLayout<kinfo_proc>.stride
        let junk = sysctl(&mib, UInt32(mib.count), &info, &size, nil, 0)
        assert(junk == 0, "sysctl failed")
        return (info.kp_proc.p_flag & P_TRACED) != 0
    }

}