mirror of
https://github.com/seaweedfs/seaweedfs.git
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85 lines
2 KiB
Go
85 lines
2 KiB
Go
package topology
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import (
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"github.com/chrislusf/seaweedfs/weed/storage/erasure_coding"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
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"github.com/chrislusf/seaweedfs/weed/storage/types"
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)
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func (d *Disk) GetEcShards() (ret []*erasure_coding.EcVolumeInfo) {
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d.RLock()
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for _, ecVolumeInfo := range d.ecShards {
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ret = append(ret, ecVolumeInfo)
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}
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d.RUnlock()
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return ret
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}
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func (d *Disk) AddOrUpdateEcShard(s *erasure_coding.EcVolumeInfo) {
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d.ecShardsLock.Lock()
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defer d.ecShardsLock.Unlock()
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delta := 0
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if existing, ok := d.ecShards[s.VolumeId]; !ok {
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d.ecShards[s.VolumeId] = s
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delta = s.ShardBits.ShardIdCount()
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} else {
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oldCount := existing.ShardBits.ShardIdCount()
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existing.ShardBits = existing.ShardBits.Plus(s.ShardBits)
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delta = existing.ShardBits.ShardIdCount() - oldCount
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}
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deltaDiskUsages := newDiskUsages()
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deltaDiskUsage := deltaDiskUsages.getOrCreateDisk(types.ToDiskType(string(d.Id())))
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deltaDiskUsage.ecShardCount = int64(delta)
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d.UpAdjustDiskUsageDelta(deltaDiskUsages)
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}
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func (d *Disk) DeleteEcShard(s *erasure_coding.EcVolumeInfo) {
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d.ecShardsLock.Lock()
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defer d.ecShardsLock.Unlock()
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if existing, ok := d.ecShards[s.VolumeId]; ok {
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oldCount := existing.ShardBits.ShardIdCount()
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existing.ShardBits = existing.ShardBits.Minus(s.ShardBits)
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delta := existing.ShardBits.ShardIdCount() - oldCount
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deltaDiskUsages := newDiskUsages()
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deltaDiskUsage := deltaDiskUsages.getOrCreateDisk(types.ToDiskType(string(d.Id())))
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deltaDiskUsage.ecShardCount = int64(delta)
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d.UpAdjustDiskUsageDelta(deltaDiskUsages)
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if existing.ShardBits.ShardIdCount() == 0 {
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delete(d.ecShards, s.VolumeId)
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}
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}
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}
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func (d *Disk) HasVolumesById(id needle.VolumeId) (hasVolumeId bool) {
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// check whether normal volumes has this volume id
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d.RLock()
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_, ok := d.volumes[id]
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if ok {
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hasVolumeId = true
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}
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d.RUnlock()
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if hasVolumeId {
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return
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}
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// check whether ec shards has this volume id
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d.ecShardsLock.RLock()
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_, ok = d.ecShards[id]
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if ok {
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hasVolumeId = true
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}
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d.ecShardsLock.RUnlock()
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return
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}
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