From d4a3b1f28237694452d57be1672662cc6e535d74 Mon Sep 17 00:00:00 2001
From: Vladimir Mihailenco <vladimir.webdev@gmail.com>
Date: Sat, 26 Nov 2016 10:33:06 +0200
Subject: [PATCH] Add instrumentation example.

---
 README.md               | 16 ----------------
 example_test.go         | 18 ++++++++++++++++++
 internal/proto/proto.go | 14 ++++++--------
 redis.go                |  2 +-
 4 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/README.md b/README.md
index db120c9..0a976b2 100644
--- a/README.md
+++ b/README.md
@@ -32,22 +32,6 @@ Import:
 import "gopkg.in/redis.v5"
 ```
 
-## Vendoring
-
-If you are using a vendoring tool with support for semantic versioning
-e.g. [glide](https://github.com/Masterminds/glide), you can import this
-package via its GitHub URL:
-
-```yaml
-- package: github.com/go-redis/redis
-  version: ^5.0.0
-```
-
-WARNING: please note that by importing `github.com/go-redis/redis`
-directly (without semantic versioning constrol) you are in danger of
-running in the breaking API changes. Use carefully and at your own
-risk!
-
 ## Quickstart
 
 ```go
diff --git a/example_test.go b/example_test.go
index 0769aa0..8f35f2f 100644
--- a/example_test.go
+++ b/example_test.go
@@ -331,3 +331,21 @@ func ExampleScanCmd_Iterator() {
 		panic(err)
 	}
 }
+
+func ExampleClient_instrumentation() {
+	client := redis.NewClient(&redis.Options{
+		Addr: ":6379",
+	})
+	client.WrapProcess(func(oldProcess func(cmd redis.Cmder) error) func(cmd redis.Cmder) error {
+		return func(cmd redis.Cmder) error {
+			start := time.Now()
+			err := oldProcess(cmd)
+			if err != nil {
+				fmt.Printf("command %s failed: %s", cmd, err)
+			} else {
+				fmt.Printf("command %q took %s", cmd, time.Since(start))
+			}
+			return err
+		}
+	})
+}
diff --git a/internal/proto/proto.go b/internal/proto/proto.go
index e1c1ed4..b51e4e8 100644
--- a/internal/proto/proto.go
+++ b/internal/proto/proto.go
@@ -8,8 +8,8 @@ import (
 	"gopkg.in/redis.v5/internal"
 )
 
-func Scan(s string, val interface{}) error {
-	switch v := val.(type) {
+func Scan(s string, v interface{}) error {
+	switch v := v.(type) {
 	case nil:
 		return internal.RedisError("redis: Scan(nil)")
 	case *string:
@@ -99,12 +99,10 @@ func Scan(s string, val interface{}) error {
 	case *bool:
 		*v = len(s) == 1 && s[0] == '1'
 		return nil
+	case encoding.BinaryUnmarshaler:
+		return v.UnmarshalBinary([]byte(s))
 	default:
-		if bu, ok := val.(encoding.BinaryUnmarshaler); ok {
-			return bu.UnmarshalBinary([]byte(s))
-		}
-		err := fmt.Errorf(
-			"redis: can't unmarshal %T (consider implementing BinaryUnmarshaler)", val)
-		return err
+		return fmt.Errorf(
+			"redis: can't unmarshal %T (consider implementing BinaryUnmarshaler)", v)
 	}
 }
diff --git a/redis.go b/redis.go
index aee3893..72b8ee6 100644
--- a/redis.go
+++ b/redis.go
@@ -1,4 +1,4 @@
-package redis
+package redis // import "gopkg.in/redis.v5"
 
 import (
 	"fmt"