lru

package

v4.3.2+incompatible Latest Latest Go to latest Published: Aug 20, 2019 License: BSD-3-Clause, BSD-3-Clause Imports: 14 Imported by: 0

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Repository

github.com/qbit/client

Links

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Documentation ¶

Index ¶

func CleanOutOfSyncWithDelay(mctx libkb.MetaContext, d *DiskLRU, cacheDir string, delay time.Duration)
type Cache
- func NewLRU(ctx libkb.LRUContext, sz int, version int, exampleObj interface{}) *Cache
type DiskLRU
- func NewDiskLRU(name string, version, maxSize int) *DiskLRU
type DiskLRUEntry

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func CleanOutOfSyncWithDelay ¶

func CleanOutOfSyncWithDelay(mctx libkb.MetaContext, d *DiskLRU, cacheDir string, delay time.Duration)

CleanOutOfSyncWithDelay runs the LRU clean function after the `delay` duration. If the service crashes it's possible that temporarily files get stranded on disk before they can get recorded in the LRU. Callers can run this in the background to prevent leaking space. We delay to keep off the critical path to start up.

Types ¶

type Cache ¶

type Cache struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func NewLRU ¶

func NewLRU(ctx libkb.LRUContext, sz int, version int, exampleObj interface{}) *Cache

func (*Cache) ClearMemory ¶

func (c *Cache) ClearMemory()

func (*Cache) Get ¶

func (c *Cache) Get(ctx context.Context, lctx libkb.LRUContext, k libkb.LRUKeyer) (interface{}, error)

func (*Cache) OnDbNuke ¶

func (c *Cache) OnDbNuke(mctx libkb.MetaContext) error

func (*Cache) OnLogout ¶

func (c *Cache) OnLogout(mctx libkb.MetaContext) error

func (*Cache) Put ¶

func (c *Cache) Put(ctx context.Context, lctx libkb.LRUContext, k libkb.LRUKeyer, v interface{}) error

type DiskLRU ¶ added in v1.0.46

type DiskLRU struct {
	sync.Mutex
	// contains filtered or unexported fields
}

DiskLRU maintains a cache of files on the disk in a LRU manner.

func NewDiskLRU ¶ added in v1.0.46

func NewDiskLRU(name string, version, maxSize int) *DiskLRU

func (*DiskLRU) CleanOutOfSync ¶

func (d *DiskLRU) CleanOutOfSync(mctx libkb.MetaContext, cacheDir string) error

func (*DiskLRU) ClearMemory ¶ added in v1.0.46

func (d *DiskLRU) ClearMemory(ctx context.Context, lctx libkb.LRUContext)

func (*DiskLRU) Flush ¶ added in v1.0.46

func (d *DiskLRU) Flush(ctx context.Context, lctx libkb.LRUContext) error

func (*DiskLRU) Get ¶ added in v1.0.46

func (d *DiskLRU) Get(ctx context.Context, lctx libkb.LRUContext, key string) (found bool, res DiskLRUEntry, err error)

func (*DiskLRU) MaxSize ¶

func (d *DiskLRU) MaxSize() int

func (*DiskLRU) Put ¶ added in v1.0.46

func (d *DiskLRU) Put(ctx context.Context, lctx libkb.LRUContext, key string, value interface{}) (evicted *DiskLRUEntry, err error)

func (*DiskLRU) Remove ¶ added in v1.0.46

func (d *DiskLRU) Remove(ctx context.Context, lctx libkb.LRUContext, key string) (err error)

func (*DiskLRU) Size ¶ added in v1.0.46

func (d *DiskLRU) Size(ctx context.Context, lctx libkb.LRUContext) (int, error)

type DiskLRUEntry ¶ added in v1.0.46

type DiskLRUEntry struct {
	Key          string
	Value        interface{}
	Ctime        time.Time
	LastAccessed time.Time
}

Source Files ¶

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