cache

Documentation

Index

• type Cache
  • func New(db *badger.DB, prefix, humanReadableName string) *Cache
  • func (cache *Cache) Delete(key string) error
  • func (cache *Cache) Evict(percent float64)
  • func (cache *Cache) Flush()
  • func (cache *Cache) GetOrCreate(key string) (interface{}, error)
  • func (cache *Cache) Len() int
  • func (cache *Cache) Lookup(key string) (interface{}, bool)
  • func (cache *Cache) Put(key string, val interface{})
  • func (cache *Cache) Size() uint64
  • func (cache *Cache) WriteBack()

Types

type Cache

type Cache struct {

	// Bytes serializes objects before they go into storage. Users are required to define this one
	Bytes func(k string, v interface{}) ([]byte, error)
	// FromBytes deserializes object coming from storage. Users are required to define this one
	FromBytes func(k string, v []byte) (interface{}, error)
	// New creates a new object when there's no object in cache or storage. Optional
	New func(k string) interface{}
	// contains filtered or unexported fields
}

func New

func New(db *badger.DB, prefix, humanReadableName string) *Cache

func (*Cache) Delete

func (cache *Cache) Delete(key string) error

func (*Cache) Evict

func (cache *Cache) Evict(percent float64)

Evict performs cache evictions. The difference between Evict and WriteBack is that evictions happen when cache grows above allowed threshold and write-back calls happen constantly, making pyroscope more crash-resilient. See https://github.com/pyroscope-io/pyroscope/issues/210 for more context

func (*Cache) Flush

func (cache *Cache) Flush()

func (*Cache) GetOrCreate

func (cache *Cache) GetOrCreate(key string) (interface{}, error)

func (*Cache) Len

func (cache *Cache) Len() int

func (*Cache) Lookup

func (cache *Cache) Lookup(key string) (interface{}, bool)

func (*Cache) Put

func (cache *Cache) Put(key string, val interface{})

func (*Cache) Size

func (cache *Cache) Size() uint64

func (*Cache) WriteBack

func (cache *Cache) WriteBack()

See Evict for more information on this