fieldalignment of all structs to save memory

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

codec/codec.go

@@ -51,16 +51,14 @@ type Codec interface {
 // the communication, likely followed by the body.
 // In the case of an error, body may be nil.
 type Message struct {
-	Id       string
-	Type     MessageType
+	Header   metadata.Metadata
 	Target   string
 	Method   string
 	Endpoint string
 	Error    string
-
-	// The values read from the socket
-	Header metadata.Metadata
-	Body   []byte
+	Id       string
+	Body     []byte
+	Type     MessageType
 }
 
 // NewMessage creates new codec message

codec/options.go

@@ -11,10 +11,14 @@ type Option func(*Options)
 
 // Options contains codec options
 type Options struct {
+	// Meter used for metrics
+	Meter meter.Meter
+	// Logger used for logging
+	Logger logger.Logger
+	// Tracer used for tracing
+	Tracer tracer.Tracer
+	// MaxMsgSize specifies max messages size that reads by codec
 	MaxMsgSize int
-	Meter      meter.Meter
-	Logger     logger.Logger
-	Tracer     tracer.Tracer
 }
 
 // MaxMsgSize sets the max message size