forked from TrueCloudLab/frostfs-node
67 lines
1.2 KiB
Go
67 lines
1.2 KiB
Go
package writecachebadger
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import (
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"fmt"
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"math"
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"sync/atomic"
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"github.com/dgraph-io/badger/v4"
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)
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func (c *cache) estimateCacheSize() uint64 {
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onDiskSize, _ := c.db.EstimateSize(nil)
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c.metrics.SetEstimateSize(onDiskSize, 0)
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return onDiskSize
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}
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func (c *cache) incSizeDB(sz uint64) uint64 {
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return sz + c.maxObjectSize
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}
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type counters struct {
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cDB atomic.Uint64
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}
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func (x *counters) IncDB() {
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x.cDB.Add(1)
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}
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func (x *counters) DecDB() {
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x.cDB.Add(math.MaxUint64)
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}
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func (x *counters) DB() uint64 {
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return x.cDB.Load()
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}
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func (c *cache) initCounters() error {
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var inDB uint64
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err := c.db.View(func(tx *badger.Txn) error {
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opts := badger.DefaultIteratorOptions
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opts.PrefetchValues = false
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it := tx.NewIterator(opts)
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defer it.Close()
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for it.Rewind(); it.Valid(); it.Next() {
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inDB++
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}
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return nil
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})
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if err != nil {
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return fmt.Errorf("could not read write-cache DB counter: %w", err)
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}
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c.objCounters.cDB.Store(inDB)
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c.metrics.SetActualCounters(inDB, 0)
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return nil
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}
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func (c *cache) incDB() {
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c.objCounters.IncDB()
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c.metrics.SetActualCounters(c.objCounters.DB(), 0)
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}
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func (c *cache) decDB() {
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c.objCounters.DecDB()
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c.metrics.SetActualCounters(c.objCounters.DB(), 0)
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}
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