mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-09-03 23:50:36 +02:00
b9aee2defb
The volume TTL and file TTL are not necessarily the same. as long as file TTL is smaller than volume TTL, it'll be fine. volume TTL is used when assigning file id, e.g. http://.../dir/assign?ttl=3h file TTL is used when uploading
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
package storage
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import (
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"errors"
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"fmt"
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)
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type ReplicaPlacement struct {
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SameRackCount int
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DiffRackCount int
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DiffDataCenterCount int
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}
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func NewReplicaPlacementFromString(t string) (*ReplicaPlacement, error) {
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rp := &ReplicaPlacement{}
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for i, c := range t {
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count := int(c - '0')
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if 0 <= count && count <= 2 {
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switch i {
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case 0:
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rp.DiffDataCenterCount = count
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case 1:
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rp.DiffRackCount = count
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case 2:
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rp.SameRackCount = count
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}
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} else {
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return rp, errors.New("Unknown Replication Type:" + t)
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}
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}
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return rp, nil
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}
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func NewReplicaPlacementFromByte(b byte) (*ReplicaPlacement, error) {
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return NewReplicaPlacementFromString(fmt.Sprintf("%03d", b))
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}
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func (rp *ReplicaPlacement) Byte() byte {
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ret := rp.DiffDataCenterCount*100 + rp.DiffRackCount*10 + rp.SameRackCount
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return byte(ret)
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}
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func (rp *ReplicaPlacement) String() string {
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b := make([]byte, 3)
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b[0] = byte(rp.DiffDataCenterCount + '0')
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b[1] = byte(rp.DiffRackCount + '0')
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b[2] = byte(rp.SameRackCount + '0')
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return string(b)
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}
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func (rp *ReplicaPlacement) GetCopyCount() int {
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return rp.DiffDataCenterCount + rp.DiffRackCount + rp.SameRackCount + 1
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}
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