FedP2P/worst_conns.go

45 lines
958 B
Go

package torrent
import "container/heap"
func worseConn(l, r *connection) bool {
var ml multiLess
ml.NextBool(!l.useful(), !r.useful())
ml.StrictNext(
l.lastHelpful().Equal(r.lastHelpful()),
l.lastHelpful().Before(r.lastHelpful()))
ml.StrictNext(
l.completedHandshake.Equal(r.completedHandshake),
l.completedHandshake.Before(r.completedHandshake))
return ml.Final()
}
type worseConnSlice struct {
conns []*connection
}
var _ heap.Interface = &worseConnSlice{}
func (me worseConnSlice) Len() int {
return len(me.conns)
}
func (me worseConnSlice) Less(i, j int) bool {
return worseConn(me.conns[i], me.conns[j])
}
func (me *worseConnSlice) Pop() interface{} {
i := len(me.conns) - 1
ret := me.conns[i]
me.conns = me.conns[:i]
return ret
}
func (me *worseConnSlice) Push(x interface{}) {
me.conns = append(me.conns, x.(*connection))
}
func (me worseConnSlice) Swap(i, j int) {
me.conns[i], me.conns[j] = me.conns[j], me.conns[i]
}