package shard import ( "sync" "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor" meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase" "github.com/nspcc-dev/neofs-node/pkg/util/logger" ) // Shard represents single shard of NeoFS Local Storage Engine. type Shard struct { *cfg mtx *sync.RWMutex weight WeightValues blobStor *blobstor.BlobStor metaBase *meta.DB } // Option represents Shard's constructor option. type Option func(*cfg) type cfg struct { id *ID blobOpts []blobstor.Option metaOpts []meta.Option log *logger.Logger } func defaultCfg() *cfg { return new(cfg) } // New creates, initializes and returns new Shard instance. func New(opts ...Option) *Shard { c := defaultCfg() for i := range opts { opts[i](c) } return &Shard{ cfg: c, mtx: new(sync.RWMutex), blobStor: blobstor.New(c.blobOpts...), metaBase: meta.NewDB(c.metaOpts...), } } // WithID returns option to set shard identifier. func WithID(id *ID) Option { return func(c *cfg) { c.id = id } } // WithBlobStorOptions returns option to set internal BlobStor options. func WithBlobStorOptions(opts ...blobstor.Option) Option { return func(c *cfg) { c.blobOpts = opts } } // WithMetaBaseOptions returns option to set internal metabase options. func WithMetaBaseOptions(opts ...meta.Option) Option { return func(c *cfg) { c.metaOpts = opts } } // WithLogger returns option to set Shard's logger. func WithLogger(l *logger.Logger) Option { return func(c *cfg) { c.log = l } }