Merge pull request #1 from rjbasitali/add-license-1

Create LICENSE

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Basit Ali
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,50 @@
+# go-cache
+
+Simple thread safe key/value cache for Go.
+
+## Usage
+
+You can initialize the cache using:
+
+```go
+    cache = gocache.NewCache()
+```
+
+And perform the operations using:
+
+```go
+   // GET a value using key, which returns (value, error)
+   cache.Get(key)
+   
+   // SET a value using key
+   cache.Set(key, value)
+   
+   // REMOVE a key/value pair using key
+   cache.Remove(key)
+   
+   // And FLUSH, which removes all items from the cache
+   cache.Flush()
+```
+
+## Cache Expiration
+
+You can also add an **expiration** to the cache, expired cache will be auto deleted by the `sweeper`.
+
+To initialize a cache using `sweeper` we can use:
+
+```go
+    cache := NewCacheWithSweeper(10 * time.Minute, 10 * time.Minute, decisionFunc, onEviction)
+```
+
+Here, first two parameters are `interval` and `expireAfter`, sweeper will run in the background after specified `interval` to check for expired cache to delete.
+
+The `decisionFunc` and `onEviction` are **optional** functions with the following signature:
+```go
+    decisionFunc func(v interface{}) bool
+    
+    onEviction func(k string, v interface{})
+```
+
+We can use `decisionFunc` as a callback, it will be called by the cache before deleting a key/value, it takes in the value to delete and returns `true` to delete and `false` for not deleting a key/value pair even after expired.
+
+The `onEviction` is a callback which will be called every time a cache is deleted with its key/value as parameters.

my_cache.go

@@ -1,7 +1,6 @@
 package gocache
 
 import (
-	"runtime"
 	"sync"
 	"time"
 )
@@ -31,7 +30,7 @@ func NewCacheWithSweeper(interval, expireAfter time.Duration,
 
 	if interval > 0 && expireAfter > 0 {
 		s := newSweeper(c, interval)
-		runtime.SetFinalizer(c, s.stopSweeper)
+		// runtime.SetFinalizer(c, s.stopSweeper)
 		go s.run(c)
 	}