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58 lines
1.1 KiB
58 lines
1.1 KiB
package topology
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import ()
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type VolumeLocationList struct {
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list []*DataNode
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}
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func NewVolumeLocationList() *VolumeLocationList {
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return &VolumeLocationList{}
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}
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func (dnll *VolumeLocationList) Head() *DataNode {
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return dnll.list[0]
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}
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func (dnll *VolumeLocationList) Length() int {
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return len(dnll.list)
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}
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func (dnll *VolumeLocationList) Add(loc *DataNode) bool {
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for _, dnl := range dnll.list {
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if loc.Ip == dnl.Ip && loc.Port == dnl.Port {
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return false
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}
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}
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dnll.list = append(dnll.list, loc)
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return true
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}
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func (dnll *VolumeLocationList) Remove(loc *DataNode) bool {
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for i, dnl := range dnll.list {
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if loc.Ip == dnl.Ip && loc.Port == dnl.Port {
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dnll.list = append(dnll.list[:i], dnll.list[i+1:]...)
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return true
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}
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}
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return false
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}
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func (dnll *VolumeLocationList) Refresh(freshThreshHold int64) {
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var changed bool
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for _, dnl := range dnll.list {
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if dnl.LastSeen < freshThreshHold {
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changed = true
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break
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}
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}
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if changed {
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var l []*DataNode
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for _, dnl := range dnll.list {
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if dnl.LastSeen >= freshThreshHold {
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l = append(l, dnl)
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}
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}
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dnll.list = l
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}
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}
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