130 lines
2.4 KiB
Go
130 lines
2.4 KiB
Go
package blobovnicza
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import (
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"io/fs"
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"os"
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"sync"
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"sync/atomic"
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"time"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
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"go.etcd.io/bbolt"
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"go.uber.org/zap"
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)
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// Blobovnicza represents the implementation of FrostFS Blobovnicza.
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type Blobovnicza struct {
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cfg
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dataSize atomic.Uint64
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itemsCount atomic.Uint64
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boltDB *bbolt.DB
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opened bool
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controlMtx sync.Mutex
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}
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// Option is an option of Blobovnicza's constructor.
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type Option func(*cfg)
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type cfg struct {
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boltDBCfg
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fullSizeLimit uint64
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objSizeLimit uint64
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log *logger.Logger
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metrics Metrics
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}
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type boltDBCfg struct {
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perm fs.FileMode
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path string
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boltOptions *bbolt.Options
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}
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func defaultCfg(c *cfg) {
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*c = cfg{
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boltDBCfg: boltDBCfg{
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perm: os.ModePerm, // 0777
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boltOptions: &bbolt.Options{
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Timeout: 100 * time.Millisecond,
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},
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},
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fullSizeLimit: 1 << 30, // 1GB
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objSizeLimit: 1 << 20, // 1MB
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log: &logger.Logger{Logger: zap.L()},
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metrics: &NoopMetrics{},
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}
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}
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// New creates and returns a new Blobovnicza instance.
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func New(opts ...Option) *Blobovnicza {
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var b Blobovnicza
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defaultCfg(&b.cfg)
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for i := range opts {
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opts[i](&b.cfg)
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}
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return &b
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}
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// WithPath returns option to set system path to Blobovnicza.
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func WithPath(path string) Option {
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return func(c *cfg) {
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c.path = path
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}
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}
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// WithPermissions returns an option to specify permission bits
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// of Blobovnicza's system path.
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func WithPermissions(perm fs.FileMode) Option {
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return func(c *cfg) {
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c.perm = perm
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}
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}
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// WithObjectSizeLimit returns an option to specify the maximum size
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// of the objects stored in Blobovnicza.
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func WithObjectSizeLimit(lim uint64) Option {
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return func(c *cfg) {
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c.objSizeLimit = lim
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}
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}
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// WithFullSizeLimit returns an option to set the maximum sum size
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// of all stored objects.
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func WithFullSizeLimit(lim uint64) Option {
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return func(c *cfg) {
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c.fullSizeLimit = lim
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}
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}
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// WithLogger returns an option to specify Blobovnicza's logger.
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func WithLogger(l *logger.Logger) Option {
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return func(c *cfg) {
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c.log = &logger.Logger{Logger: l.With(zap.String("component", "Blobovnicza"))}
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}
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}
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// WithReadOnly returns an option to open Blobovnicza in read-only mode.
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func WithReadOnly(ro bool) Option {
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return func(c *cfg) {
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c.boltOptions.ReadOnly = ro
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}
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}
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// WithMetrics returns an option to set metrics storage.
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func WithMetrics(m Metrics) Option {
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return func(c *cfg) {
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c.metrics = m
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}
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}
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