go-ethereum/whisper/sort.go
2015-03-21 00:57:18 +01:00

30 lines
568 B
Go

package whisper
import (
"sort"
"github.com/ethereum/go-ethereum/common"
)
type sortedKeys struct {
k []int32
}
func (self *sortedKeys) Len() int { return len(self.k) }
func (self *sortedKeys) Less(i, j int) bool { return self.k[i] < self.k[j] }
func (self *sortedKeys) Swap(i, j int) { self.k[i], self.k[j] = self.k[j], self.k[i] }
func sortKeys(m map[int32]common.Hash) []int32 {
sorted := new(sortedKeys)
sorted.k = make([]int32, len(m))
i := 0
for key, _ := range m {
sorted.k[i] = key
i++
}
sort.Sort(sorted)
return sorted.k
}