package cgroups

import "fmt"

//go:generate stringer -type=Controller -linecomment

const (
	ControllerUndefined Controller = iota // undefined
	ControllerPids                        // pids
	ControllerCPU                         // cpu
	ControllerMemory                      // memory
	ControllerRdma                        // rdma
	ControllerIo                          // io
)

type Controller int

func ParseController(in string) (Controller, error) {
	switch in {
	case ControllerPids.String():
		return ControllerPids, nil
	case ControllerCPU.String():
		return ControllerCPU, nil
	case ControllerMemory.String():
		return ControllerMemory, nil
	case ControllerRdma.String():
		return ControllerRdma, nil
	case ControllerIo.String():
		return ControllerIo, nil
	default:
		return ControllerUndefined, fmt.Errorf("Controller(%s)", in)
	}
}