package writecache import ( "errors" "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common" storagelog "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/log" "go.etcd.io/bbolt" ) var ( // ErrBigObject is returned when object is too big to be placed in cache. ErrBigObject = errors.New("too big object") // ErrOutOfSpace is returned when there is no space left to put a new object. ErrOutOfSpace = errors.New("no space left in the write cache") ) // Put puts object to write-cache. func (c *cache) Put(prm common.PutPrm) (common.PutRes, error) { c.modeMtx.RLock() defer c.modeMtx.RUnlock() if c.readOnly() { return common.PutRes{}, ErrReadOnly } sz := uint64(len(prm.RawData)) if sz > c.maxObjectSize { return common.PutRes{}, ErrBigObject } oi := objectInfo{ addr: prm.Address.EncodeToString(), obj: prm.Object, data: prm.RawData, } if sz <= c.smallObjectSize { return common.PutRes{}, c.putSmall(oi) } return common.PutRes{}, c.putBig(oi.addr, prm) } // putSmall persists small objects to the write-cache database and // pushes the to the flush workers queue. func (c *cache) putSmall(obj objectInfo) error { cacheSize := c.estimateCacheSize() if c.maxCacheSize < c.incSizeDB(cacheSize) { return ErrOutOfSpace } err := c.db.Batch(func(tx *bbolt.Tx) error { b := tx.Bucket(defaultBucket) return b.Put([]byte(obj.addr), obj.data) }) if err == nil { storagelog.Write(c.log, storagelog.AddressField(obj.addr), storagelog.StorageTypeField(wcStorageType), storagelog.OpField("db PUT"), ) c.objCounters.IncDB() } return nil } // putBig writes object to FSTree and pushes it to the flush workers queue. func (c *cache) putBig(addr string, prm common.PutPrm) error { cacheSz := c.estimateCacheSize() if c.maxCacheSize < c.incSizeFS(cacheSz) { return ErrOutOfSpace } _, err := c.fsTree.Put(prm) if err != nil { return err } if c.blobstor.NeedsCompression(prm.Object) { c.mtx.Lock() c.compressFlags[addr] = struct{}{} c.mtx.Unlock() } c.objCounters.IncFS() storagelog.Write(c.log, storagelog.AddressField(addr), storagelog.StorageTypeField(wcStorageType), storagelog.OpField("fstree PUT"), ) return nil }