mirror of https://github.com/chrislusf/seaweedfs
100 lines
2.0 KiB
Go
100 lines
2.0 KiB
Go
package topology
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
|
|
)
|
|
|
|
type VolumeLocationList struct {
|
|
list []*DataNode
|
|
}
|
|
|
|
func NewVolumeLocationList() *VolumeLocationList {
|
|
return &VolumeLocationList{}
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) String() string {
|
|
return fmt.Sprintf("%v", dnll.list)
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Copy() *VolumeLocationList {
|
|
list := make([]*DataNode, len(dnll.list))
|
|
copy(list, dnll.list)
|
|
return &VolumeLocationList{
|
|
list: list,
|
|
}
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Head() *DataNode {
|
|
//mark first node as master volume
|
|
if dnll.Length() == 0 {
|
|
return nil
|
|
}
|
|
return dnll.list[0]
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Rest() []*DataNode {
|
|
//mark first node as master volume
|
|
return dnll.list[1:]
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Length() int {
|
|
if dnll == nil {
|
|
return 0
|
|
}
|
|
return len(dnll.list)
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Set(loc *DataNode) {
|
|
for i := 0; i < len(dnll.list); i++ {
|
|
if loc.Ip == dnll.list[i].Ip && loc.Port == dnll.list[i].Port {
|
|
dnll.list[i] = loc
|
|
return
|
|
}
|
|
}
|
|
dnll.list = append(dnll.list, loc)
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Remove(loc *DataNode) bool {
|
|
for i, dnl := range dnll.list {
|
|
if loc.Ip == dnl.Ip && loc.Port == dnl.Port {
|
|
dnll.list = append(dnll.list[:i], dnll.list[i+1:]...)
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (dnll *VolumeLocationList) Refresh(freshThreshHold int64) {
|
|
var changed bool
|
|
for _, dnl := range dnll.list {
|
|
if dnl.LastSeen < freshThreshHold {
|
|
changed = true
|
|
break
|
|
}
|
|
}
|
|
if changed {
|
|
var l []*DataNode
|
|
for _, dnl := range dnll.list {
|
|
if dnl.LastSeen >= freshThreshHold {
|
|
l = append(l, dnl)
|
|
}
|
|
}
|
|
dnll.list = l
|
|
}
|
|
}
|
|
|
|
// Stats returns logic size and count
|
|
func (dnll *VolumeLocationList) Stats(vid needle.VolumeId, freshThreshHold int64) (size uint64, fileCount int) {
|
|
for _, dnl := range dnll.list {
|
|
if dnl.LastSeen < freshThreshHold {
|
|
vinfo, err := dnl.GetVolumesById(vid)
|
|
if err == nil {
|
|
return (vinfo.Size - vinfo.DeletedByteCount), vinfo.FileCount - vinfo.DeleteCount
|
|
}
|
|
}
|
|
}
|
|
return 0, 0
|
|
}
|