Reuse slice in SentinelInput of base/context to reduce memory allocation (#466)

Author: tylitianrui

api/api.go

@@ -51,7 +51,7 @@ func (o *EntryOptions) Reset() {
 	o.batchCount = 1
 	o.flag = 0
 	o.slotChain = nil
-	o.args = nil
+	o.args = o.args[:0]
 	o.attachments = nil
 }
 

core/base/context.go

@@ -91,9 +91,7 @@ type SentinelInput struct {
 func (i *SentinelInput) reset() {
 	i.BatchCount = 1
 	i.Flag = 0
-	if len(i.Args) != 0 {
-		i.Args = make([]interface{}, 0)
-	}
+	i.Args = i.Args[:0]
 	if len(i.Attachments) != 0 {
 		i.Attachments = make(map[interface{}]interface{})
 	}