1.	fun getDistance(index: Int): Double? {
2.	    val vertex = vertexes[index] ?: return null
3.	    return vertex.getDistance().distance
4.	}
5.	 
6.	fun getDistance(): Distance {
7.	    while (true) {
8.	        val curDescriptor = descriptor.value
9.	        val curStatus = curDescriptor.process.status.value
10.	        val curDistance = readActual(curDescriptor, curStatus)
11.	        if (descriptor.value === curDescriptor) {
12.	            return curDistance
13.	        }
14.	    }
15.	}

fun setEdge(fromIndex: Int, toIndex: Int, newWeight: Double): Boolean {
    if (fromIndex == toIndex) return false
    val from = vertexes[fromIndex] ?: return false
    val to = vertexes[toIndex] ?: return false

    while (true) {
        val process = Process(priority, newWeight)
        process.from = from
        process.to = to

        process.help()

        if (process.status.value == Status.SUCCESS) {
            return true
        }
    }
}