parra/ntfy
parra/ntfy
1
0
Fork 0
mirror of https://github.com/binwiederhier/ntfy.git synced 2025-06-02 03:20:34 +02:00
Code Releases Activity

Code review (round 1)

Browse source
This commit is contained in:
binwiederhier 2023-02-08 22:57:10 -05:00
parent 7706bd9845
commit b37cf02a6e
12 changed files with 78 additions and 23 deletions

22
util/lookup_cache.go
View file

@ -10,14 +10,14 @@ import (
//
// Example:
//
// lookup := func() (string, error) {
// r, _ := http.Get("...")
// s, _ := io.ReadAll(r.Body)
// return string(s), nil
// }
// c := NewLookupCache[string](lookup, time.Hour)
// fmt.Println(c.Get()) // Fetches the string via HTTP
// fmt.Println(c.Get()) // Uses cached value
// lookup := func() (string, error) {
// r, _ := http.Get("...")
// s, _ := io.ReadAll(r.Body)
// return string(s), nil
// }
// c := NewLookupCache[string](lookup, time.Hour)
// fmt.Println(c.Get()) // Fetches the string via HTTP
// fmt.Println(c.Get()) // Uses cached value
type LookupCache[T any] struct {
value *T
lookup func() (T, error)
@ -26,8 +26,12 @@ type LookupCache[T any] struct {
mu sync.Mutex
}
// LookupFunc is a function that is called by the LookupCache if the underlying
// value is out-of-date. It returns the new value, or an error.
type LookupFunc[T any] func() (T, error)
// NewLookupCache creates a new LookupCache with a given time-to-live (TTL)
func NewLookupCache[T any](lookup func() (T, error), ttl time.Duration) *LookupCache[T] {
func NewLookupCache[T any](lookup LookupFunc[T], ttl time.Duration) *LookupCache[T] {
return &LookupCache[T]{
value: nil,
lookup: lookup,