cache

Documentation

Overview

Package cache provides a time cache implementation safe for concurrent use without the need of additional locking.

Index

• type TimeCache
  • func NewTimeCache(timespan time.Duration) *TimeCache
  • func (tc *TimeCache) Add(item string) bool
  • func (tc *TimeCache) Has(item string) bool
  • func (tc *TimeCache) Sweep()

Types

type TimeCache

type TimeCache struct {
	// contains filtered or unexported fields
}

TimeCache provides a time cache safe for concurrent use by multiple goroutines without additional locking or coordination.

func NewTimeCache

func NewTimeCache(timespan time.Duration) *TimeCache

NewTimeCache creates a new cache instance with provided timespan.

func (*TimeCache) Add

func (tc *TimeCache) Add(item string) bool

Add adds an entry to the cache. Returns `true` if entry was not present in the cache and was successfully added into it. Returns `false` if entry is already in the cache. This method is synchronized.

func (*TimeCache) Has

func (tc *TimeCache) Has(item string) bool

Has checks presence of an entry in the cache. Returns `true` if entry is present and `false` otherwise.

func (*TimeCache) Sweep

func (tc *TimeCache) Sweep()

Sweep removes old entries. That is those for which caching timespan has passed.