mirror of
https://github.com/MetaCubeX/mihomo.git
synced 2024-12-26 20:26:06 +08:00
45 lines
779 B
Go
45 lines
779 B
Go
|
package trie
|
||
|
|
||
|
import "errors"
|
||
|
|
||
|
var (
|
||
|
ErrorOverMaxValue = errors.New("the value don't over max value")
|
||
|
)
|
||
|
|
||
|
type IpCidrNode struct {
|
||
|
Mark bool
|
||
|
child map[uint32]*IpCidrNode
|
||
|
maxValue uint32
|
||
|
}
|
||
|
|
||
|
func NewIpCidrNode(mark bool, maxValue uint32) *IpCidrNode {
|
||
|
ipCidrNode := &IpCidrNode{
|
||
|
Mark: mark,
|
||
|
child: map[uint32]*IpCidrNode{},
|
||
|
maxValue: maxValue,
|
||
|
}
|
||
|
|
||
|
return ipCidrNode
|
||
|
}
|
||
|
|
||
|
func (n *IpCidrNode) addChild(value uint32) error {
|
||
|
if value > n.maxValue {
|
||
|
return ErrorOverMaxValue
|
||
|
}
|
||
|
|
||
|
n.child[value] = NewIpCidrNode(false, n.maxValue)
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
func (n *IpCidrNode) hasChild(value uint32) bool {
|
||
|
return n.getChild(value) != nil
|
||
|
}
|
||
|
|
||
|
func (n *IpCidrNode) getChild(value uint32) *IpCidrNode {
|
||
|
if value <= n.maxValue {
|
||
|
return n.child[value]
|
||
|
}
|
||
|
|
||
|
return nil
|
||
|
}
|