[#199] putsvc: Refactor streamer pool

Resolve staticcheck linter for putBytesPool

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

pkg/services/object/put/distributed.go

@@ -28,7 +28,7 @@ type distributedTarget struct {
 	obj     *objectSDK.Object
 	objMeta object.ContentMeta
 
-	payload []byte
+	payload *payload
 
 	nodeTargetInitializer func(nodeDesc) preparedObjectTarget
 
@@ -122,7 +122,7 @@ func (t *distributedTarget) WriteHeader(obj *objectSDK.Object) error {
 }
 
 func (t *distributedTarget) Write(p []byte) (n int, err error) {
-	t.payload = append(t.payload, p...)
+	t.payload.Data = append(t.payload.Data, p...)
 
 	return len(p), nil
 }
@@ -133,7 +133,7 @@ func (t *distributedTarget) Close() (*transformer.AccessIdentifiers, error) {
 		t.payload = nil
 	}()
 
-	t.obj.SetPayload(t.payload)
+	t.obj.SetPayload(t.payload.Data)
 
 	var err error
 

pkg/services/object/put/pool.go

@@ -6,15 +6,19 @@ import (
 
 const defaultAllocSize = 1024
 
+type payload struct {
+	Data []byte
+}
+
 var putBytesPool = &sync.Pool{
-	New: func() any { return make([]byte, 0, defaultAllocSize) },
+	New: func() any { return &payload{Data: make([]byte, 0, defaultAllocSize)} },
 }
 
-func getPayload() []byte {
+func getPayload() *payload {
-	return putBytesPool.Get().([]byte)
+	return putBytesPool.Get().(*payload)
 }
 
-func putPayload(p []byte) {
+func putPayload(p *payload) {
-	//nolint:staticcheck
+	p.Data = p.Data[:0]
-	putBytesPool.Put(p[:0])
+	putBytesPool.Put(p)
 }