#55,#56,#57 : @chenyahui was on fire and greatly improved the peformance of the library. He also got rid of the blocking call to expirationNotification, making the code run twice as fast in the benchmarks!
#53 : Avoids recalculation of TTL value returned in API when TTL is extended. by @iczc
#51 : The call GetWithTTL(key string) (interface{}, time.Duration, error) is added so that you can retrieve an item, and also know the remaining TTL. Thanks to @asgarciap for contributing.
#46 : got panic
A panic occured in a line that checks the maximum amount of items in the cache. While not definite root cause has been found, there is indeed the possibility of crashing an empty cache if the cache limit is set to 'zero' which codes for infinite. This would lead to removal of the first item in the cache which would panic on an empty cache.
Fixed this by applying the global cache lock to all configuration options as well.
#44 : There are no API changes, but a contribution was made to use https://pkg.go.dev/golang.org/x/sync/singleflight as a way to provide everybody waiting for a key with that key when it's fetched.
This removes some complexity from the code and will make sure that all callers will get a return value even if there's high concurrency and low TTL (as proven by the test that was added).
- #39 : Allow custom loader function for each key via
GetByLoader
Introduce the SimpleCache
interface for quick-start and basic usage.
- #42 : Add option to get list of keys
- #40: Allow 'Touch' on items without other operation
// Touch resets the TTL of the key when it exists, returns ErrNotFound if the key is not present. func (cache *Cache) Touch(key string) error
// GetKeys returns all keys of items in the cache. Returns nil when the cache has been closed. func (cache *Cache) GetKeys() []string
- #38: Added func (cache *Cache) SetExpirationReasonCallback(callback ExpireReasonCallback) This wil function will replace SetExpirationCallback(..) in the next major version.
- #37 : a GetMetrics call is now available for some information on hits/misses etc.
- #34 : Errors are now const
SetCacheSizeLimit(limit int)
a call was contributed to set a cache limit. #35
Remove(key)
now also calls the expiration callback when it's setCount()
returns zero when the cache is closed
SetLoaderFunction
allows you to provide a function to retrieve data on missing cache keys.- Operations that affect item behaviour such as
Close
,Set
,SetWithTTL
,Get
,Remove
,Purge
now return an error with standard errorsErrClosed
anErrNotFound
instead of a bool or nothing SkipTTLExtensionOnHit
replacesSkipTtlExtensionOnHit
to satisfy golint- The callback types are now exported