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