add ByteBuffer

bytes/bytes.go

@@ -1,13 +1,28 @@
 package bytes
 
-import "unsafe"
+import (
+	"unsafe"
+
+	"github.com/valyala/bytebufferpool"
+)
+
+type ByteBuffer = bytebufferpool.ByteBuffer
+
+var (
+	Get = bytebufferpool.Get()
+	Put = func(b *ByteBuffer) {
+		if b != nil {
+			bytebufferpool.Put(b)
+		}
+	}
+)
 
 // String []byte转换为string
 func String(b []byte) string {
 	return *(*string)(unsafe.Pointer(&b))
 }
 
-// SliceEqual
+// SliceEqual 判断两个字节切片每个元素是否相等
 func SliceEqual(a, b []byte) bool {
 	aLen, bLen := len(a), len(b)
 	if aLen != bLen {
@@ -27,7 +42,7 @@ func SliceEqual(a, b []byte) bool {
 	return true
 }
 
-// Contain
+// Contain 判断字节切片b是否包含ele元素
 func Contain(ele byte, b []byte) bool {
 	for _, v := range b {
 		if v == ele {
@@ -37,7 +52,7 @@ func Contain(ele byte, b []byte) bool {
 	return false
 }
 
-// Reverse
+// Reverse 翻转字节切片
 func Reverse(b []byte) {
 	l := len(b)
 	for i := l/2 - 1; i >= 0; i-- {
@@ -46,7 +61,7 @@ func Reverse(b []byte) {
 	}
 }
 
-// Remove
+// Remove 从b中删除ele
 func Remove(ele byte, b []byte) {
 	for i := range b {
 		if ele == b[i] {

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/lestrrat-go/strftime v1.0.4 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
+	github.com/valyala/bytebufferpool v1.0.1-0.20201104193830-18533face0df // indirect
 	github.com/vmihailenco/msgpack/v5 v5.3.4 // indirect
 	go.uber.org/zap v1.18.1 // indirect
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e // indirect

go.sum

@@ -26,6 +26,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/valyala/bytebufferpool v1.0.1-0.20201104193830-18533face0df h1:lL/Oy/WWGQJ7cly/i0z/ALOprHiHRI+KjSoZLVmTwp8=
+github.com/valyala/bytebufferpool v1.0.1-0.20201104193830-18533face0df/go.mod h1:7zinLbvFO6mTmV5z9I+E31lfEnEQ2a27Om5SPCg99dA=
 github.com/vmihailenco/msgpack/v5 v5.3.4 h1:qMKAwOV+meBw2Y8k9cVwAy7qErtYCwBzZ2ellBfvnqc=
 github.com/vmihailenco/msgpack/v5 v5.3.4/go.mod h1:7xyJ9e+0+9SaZT0Wt1RGleJXzli6Q/V5KbhBonMG9jc=
 github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=

strings/strings.go

@@ -1,16 +1,18 @@
 package strings
 
 import (
+	"reflect"
 	"strconv"
 	"strings"
 	"unsafe"
 )
 
 // Bytes string转换为[]byte
-func Bytes(s string) []byte {
-	sp := *(*[2]uintptr)(unsafe.Pointer(&s))
-	bp := [3]uintptr{sp[0], sp[1], sp[1]}
-	return *(*[]byte)(unsafe.Pointer(&bp))
+func Bytes(s string) (b []byte) {
+	sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
+	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
+	bh.Data, bh.Len, bh.Cap = sh.Data, sh.Len, sh.Len
+	return b
 }
 
 // Uint64 string转换为uint64
@@ -108,7 +110,7 @@ func Reverse(s []string) {
 	}
 }
 
-// Remove
+// Remove 从s中删除第一个ele
 func Remove(ele string, s []string) {
 	for i := range s {
 		if s[i] == ele {
@@ -153,9 +155,8 @@ func FilterRepeatBySlice(slc []string) []string {
 	return result
 }
 
-//通过map转换
+// FilterRepeatByMap 通过map元素去重
 func FilterRepeatByMap(slc []string) []string {
-	//result := make([]string, 0)
 	var result []string
 	tempMap := make(map[string]byte, 0)
 	for _, e := range slc {