From 5e2cce4853c4e3ffa2ddb0e6a324cd767a4073e7 Mon Sep 17 00:00:00 2001
From: Vladimir Mihailenco <vladimir.webdev@gmail.com>
Date: Mon, 20 Aug 2012 11:40:27 +0300
Subject: [PATCH] Micro-optimize loop.

---
 multi.go    | 12 +++++-------
 pipeline.go |  3 ++-
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/multi.go b/multi.go
index c05d5e1..b620906 100644
--- a/multi.go
+++ b/multi.go
@@ -82,14 +82,11 @@ func (c *MultiClient) ExecReqs(reqs []Req, conn *Conn) error {
 
 	statusReq := NewStatusReq()
 
-	// Parse MULTI command reply.
-	_, err = statusReq.ParseReply(conn.Rd)
-	if err != nil {
-		return err
-	}
+	// Omit last request (EXEC).
+	reqsLen := len(reqs) - 1
 
 	// Parse queued replies.
-	for i := 1; i < len(reqs)-1; i++ {
+	for i := 0; i < reqsLen; i++ {
 		_, err = statusReq.ParseReply(conn.Rd)
 		if err != nil {
 			return err
@@ -109,7 +106,8 @@ func (c *MultiClient) ExecReqs(reqs []Req, conn *Conn) error {
 	}
 
 	// Parse replies.
-	for i := 1; i < len(reqs)-1; i++ {
+	// Loop starts from 1 to omit first request (MULTI).
+	for i := 1; i < reqsLen; i++ {
 		req := reqs[i]
 		val, err := req.ParseReply(conn.Rd)
 		if err != nil {
diff --git a/pipeline.go b/pipeline.go
index 47383c6..d7ed0d1 100644
--- a/pipeline.go
+++ b/pipeline.go
@@ -67,7 +67,8 @@ func (c *PipelineClient) RunReqs(reqs []Req, conn *Conn) error {
 		return err
 	}
 
-	for i := 0; i < len(reqs); i++ {
+	reqsLen := len(reqs)
+	for i := 0; i < reqsLen; i++ {
 		req := reqs[i]
 		val, err := req.ParseReply(conn.Rd)
 		if err != nil {