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package losetup
import (
"fmt"
"os"
)
// Device represents a loop device /dev/loop#
type Device struct {
// device number (i.e. 7 if /dev/loop7)
number uint64
// flags with which to open the device with
flags int
}
// New creates a reference to a specific loop device, if you know which one you
// want to reference.
func New(number uint64, flags int) Device {
return Device{number, flags}
}
// open returns a file handle to /dev/loop# and returns an error if it cannot
// be opened.
func (device Device) open() (*os.File, error) {
return os.OpenFile(device.Path(), device.flags, 0660)
}
// Path returns the path to the loopback device
func (device Device) Path() string {
return fmt.Sprintf(DeviceFormatString, device.number)
}
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