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sign.go
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/
sign.go
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package channel
import (
"github.com/hacash/core/fields"
"sort"
)
/**
* 签名相关
*/
// Sorting unit
type SortAddresses []fields.Address
func (n SortAddresses) Len() int {
return len(n)
}
func (n SortAddresses) Less(i, j int) bool {
a, b := n[i], n[j]
for k := 0; k < fields.AddressSize; k++ {
if a[k] < b[k] {
return true // Character sorting
}
}
return false
}
func (n SortAddresses) Swap(i, j int) {
n[i], n[j] = n[j], n[i]
}
// De duplication and sorting address list
func CleanSortMustSignAddresses(addrs []fields.Address) (fields.VarUint1, []fields.Address) {
// duplicate removal
addrsclear := make([]fields.Address, 0)
repeats := map[string]bool{}
for _, v := range addrs {
if _, hav := repeats[string(v)]; hav == false {
addrsclear = append(addrsclear, v)
}
repeats[string(v)] = true
}
// sort
sort.Sort(SortAddresses(addrsclear))
return fields.VarUint1(len(addrsclear)), addrsclear
}