32 lines
870 B
Go
32 lines
870 B
Go
|
package sandbox
|
||
|
|
|
||
|
|
import "sort"
|
||
|
|
|
||
|
|
// History is a convenience type for storing a list of sandboxes,
|
||
|
|
// sorted by creation date in descendant order.
|
||
|
|
type History []*Sandbox
|
||
|
|
|
||
|
|
// Len returns the number of sandboxes in the history.
|
||
|
|
func (history *History) Len() int {
|
||
|
|
return len(*history)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Less compares two sandboxes and returns true if the second one
|
||
|
|
// was created before the first one.
|
||
|
|
func (history *History) Less(i, j int) bool {
|
||
|
|
sandboxes := *history
|
||
|
|
// FIXME: state access should be serialized
|
||
|
|
return sandboxes[j].created.Before(sandboxes[i].created)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Swap switches sandboxes i and j positions in the history.
|
||
|
|
func (history *History) Swap(i, j int) {
|
||
|
|
sandboxes := *history
|
||
|
|
sandboxes[i], sandboxes[j] = sandboxes[j], sandboxes[i]
|
||
|
|
}
|
||
|
|
|
||
|
|
// sort orders the history by creation date in descendant order.
|
||
|
|
func (history *History) sort() {
|
||
|
|
sort.Sort(history)
|
||
|
|
}
|