xpc.swift

    func createXPCDictionary(_ inDictionary: [String: Any?]) -> xpc_object_t {
        var keyArray: [UnsafePointer<Int8>] = []
        var valueArray: [xpc_object_t?] = []

        for (key, value) in inDictionary {
            keyArray.append(key)
            let xo: xpc_object_t? = xpc_string_create(value as! String)
            valueArray.append(xo)
        }

        precondition(keyArray.count == valueArray.count)

        let keys: UnsafePointer<UnsafePointer<Int8>> = UnsafePointer(keyArray)
        let values: UnsafePointer<xpc_object_t?> = UnsafePointer(valueArray)

        print("keys: \(keys)")
        print("values: \(values)")
        print("count: \(keyArray.count)")
        return xpc_dictionary_create(keys, values, keyArray.count)
    }