Update TwinProduction/gocache to v1.2.3

go.mod

@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	cloud.google.com/go v0.74.0 // indirect
-	github.com/TwinProduction/gocache v1.2.2
+	github.com/TwinProduction/gocache v1.2.3
 	github.com/TwinProduction/health v1.0.0
 	github.com/go-ping/ping v0.0.0-20201115131931-3300c582a663
 	github.com/google/gofuzz v1.2.0 // indirect

go.sum

@@ -49,8 +49,8 @@ github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbt
 github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/TwinProduction/gocache v1.2.2 h1:GpIq4HW+oLFlxO8mXapWKx54qT8p7SMWh2tf91jkLDU=
-github.com/TwinProduction/gocache v1.2.2/go.mod h1:Yj2daITit8TTBgiOpc26XCDSbg9xcFskUilHj9u3Mh8=
+github.com/TwinProduction/gocache v1.2.3 h1:4wFNih4CemUX+A99Gk/EsaU0SXSNZV42Ve77v7/7ToY=
+github.com/TwinProduction/gocache v1.2.3/go.mod h1:Yj2daITit8TTBgiOpc26XCDSbg9xcFskUilHj9u3Mh8=
 github.com/TwinProduction/health v1.0.0 h1:TVyYTAORQQZ8LaptX8jCHZRCGCAO6e+oJx19BUIzQYY=
 github.com/TwinProduction/health v1.0.0/go.mod h1:ys4mYKUeEfYrWmkm60xLtPjTuLIEDQNBZaTZvenLG1c=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=

vendor/github.com/TwinProduction/gocache/README.md

@@ -5,7 +5,7 @@
 [![codecov](https://codecov.io/gh/TwinProduction/gocache/branch/master/graph/badge.svg)](https://codecov.io/gh/TwinProduction/gocache)
 [![Go version](https://img.shields.io/github/go-mod/go-version/TwinProduction/gocache.svg)](https://github.com/TwinProduction/gocache)
 [![Go Reference](https://pkg.go.dev/badge/github.com/TwinProduction/gocache.svg)](https://pkg.go.dev/github.com/TwinProduction/gocache)
-[![Join Discord server](https://img.shields.io/discord/442432928614449155.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)](https://discord.gg/44p4TRep)
+[![Follow TwinProduction](https://img.shields.io/github/followers/TwinProduction?label=Follow&style=social)](https://github.com/TwinProduction)
 
 gocache is an easy-to-use, high-performance, lightweight and thread-safe (goroutine-safe) in-memory key-value cache 
 with support for LRU and FIFO eviction policies as well as expiration, bulk operations and even persistence to file.

vendor/github.com/TwinProduction/gocache/gocache.go

@@ -239,12 +239,12 @@ func (cache *Cache) SetWithTTL(key string, value interface{}, ttl time.Duration)
 			Key:               key,
 			Value:             value,
 			RelevantTimestamp: time.Now(),
-			previous:          cache.head,
+			next:              cache.head,
 		}
 		if cache.head == nil {
 			cache.tail = entry
 		} else {
-			cache.head.next = entry
+			cache.head.previous = entry
 		}
 		cache.head = entry
 		cache.entries[key] = entry
@@ -519,10 +519,10 @@ func (cache *Cache) moveExistingEntryToHead(entry *Entry) {
 		cache.removeExistingEntryReferences(entry)
 	}
 	if entry != cache.head {
-		entry.previous = cache.head
-		entry.next = nil
+		entry.next = cache.head
+		entry.previous = nil
 		if cache.head != nil {
-			cache.head.next = entry
+			cache.head.previous = entry
 		}
 		cache.head = entry
 	}
@@ -536,9 +536,9 @@ func (cache *Cache) removeExistingEntryReferences(entry *Entry) {
 		cache.tail = nil
 		cache.head = nil
 	} else if cache.tail == entry {
-		cache.tail = cache.tail.next
+		cache.tail = cache.tail.previous
 	} else if cache.head == entry {
-		cache.head = cache.head.previous
+		cache.head = cache.head.next
 	}
 	if entry.previous != nil {
 		entry.previous.next = entry.next

vendor/github.com/TwinProduction/gocache/janitor.go

@@ -33,7 +33,7 @@ func (cache *Cache) StartJanitor() error {
 	}
 	cache.stopJanitor = make(chan bool)
 	go func() {
-		// rather than starting from the tail on every run, we can try to start from the last next entry
+		// rather than starting from the tail on every run, we can try to start from the last traversed entry
 		var lastTraversedNode *Entry
 		totalNumberOfExpiredKeysInPreviousRunFromTailToHead := 0
 		backOff := JanitorMinShiftBackOff
@@ -62,13 +62,14 @@ func (cache *Cache) StartJanitor() error {
 						totalNumberOfExpiredKeysInPreviousRunFromTailToHead = 0
 					}
 					for current != nil {
-						var next *Entry
+						// since we're walking from the tail to the head, we get the previous reference
+						var previous *Entry
 						steps++
 						if current.Expired() {
 							expiredEntriesFound++
-							// Because delete will remove the next reference from the entry, we need to store the
-							// next reference before we delete it
-							next = current.next
+							// Because delete will remove the previous reference from the entry, we need to store the
+							// previous reference before we delete it
+							previous = current.previous
 							cache.delete(current.Key)
 							cache.stats.ExpiredKeys++
 						}
@@ -76,11 +77,11 @@ func (cache *Cache) StartJanitor() error {
 							lastTraversedNode = nil
 							break
 						}
-						// Travel to the current node's next node only if no specific next node has been specified
-						if next != nil {
-							current = next
+						// Travel to the current node's previous node only if no specific previous node has been specified
+						if previous != nil {
+							current = previous
 						} else {
-							current = current.next
+							current = current.previous
 						}
 						lastTraversedNode = current
 						if steps == JanitorMaxIterationsPerShift || expiredEntriesFound >= JanitorShiftTarget {

vendor/github.com/TwinProduction/gocache/persistence.go

@@ -120,8 +120,8 @@ func (cache *Cache) ReadFromFile(path string) (int, error) {
 			cache.tail = current
 			cache.head = current
 		} else {
-			previous.next = current
-			current.previous = previous
+			previous.previous = current
+			current.next = previous
 			cache.head = current
 		}
 		previous = entries[i]

vendor/modules.txt

@@ -1,7 +1,7 @@
 # cloud.google.com/go v0.74.0
 ## explicit
 cloud.google.com/go/compute/metadata
-# github.com/TwinProduction/gocache v1.2.2
+# github.com/TwinProduction/gocache v1.2.3
 ## explicit
 github.com/TwinProduction/gocache
 # github.com/TwinProduction/health v1.0.0