diff --git a/client.go b/client.go
index b0906d6..05ffd06 100644
--- a/client.go
+++ b/client.go
@@ -5,6 +5,7 @@
 package dsrpc
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
@@ -14,7 +15,7 @@ import (
 	encoder "github.com/vmihailenco/msgpack/v5"
 )
 
-func Put(address string, method string, reader io.Reader, binSize int64, param, result any, auth *Auth) error {
+func Put(ctx context.Context, address string, method string, reader io.Reader, binSize int64, param, result any, auth *Auth) error {
 	var err error
 
 	addr, err := net.ResolveTCPAddr("tcp", address)
@@ -28,10 +29,10 @@ func Put(address string, method string, reader io.Reader, binSize int64, param,
 	}
 	defer conn.Close()
 
-	return ConnPut(conn, method, reader, binSize, param, result, auth)
+	return ConnPut(ctx, conn, method, reader, binSize, param, result, auth)
 }
 
-func ConnPut(conn net.Conn, method string, reader io.Reader, binSize int64, param, result any, auth *Auth) error {
+func ConnPut(ctx context.Context, conn net.Conn, method string, reader io.Reader, binSize int64, param, result any, auth *Auth) error {
 	var err error
 	content := CreateContent(conn)
 
@@ -51,11 +52,11 @@ func ConnPut(conn net.Conn, method string, reader io.Reader, binSize int64, para
 
 	content.reqHeader.binSize = binSize
 
-	err = content.CreateRequest()
+	err = content.createRequest()
 	if err != nil {
 		return err
 	}
-	err = content.WriteRequest()
+	err = content.writeRequest()
 	if err != nil {
 		return err
 	}
@@ -64,24 +65,24 @@ func ConnPut(conn net.Conn, method string, reader io.Reader, binSize int64, para
 	errChan := make(chan error, 1)
 
 	wg.Add(1)
-	go content.ReadResponseAsync(&wg, errChan)
+	go content.readResponseAsync(&wg, errChan)
 
 	wg.Add(1)
-	go content.UploadBinAsync(&wg)
+	go content.uploadBinAsync(ctx, &wg)
 
 	wg.Wait()
 	err = <-errChan
 	if err != nil {
 		return err
 	}
-	err = content.BindResponse()
+	err = content.bindResponse()
 	if err != nil {
 		return err
 	}
 	return err
 }
 
-func Get(address string, method string, writer io.Writer, param, result any, auth *Auth) error {
+func Get(ctx context.Context, address string, method string, writer io.Writer, param, result any, auth *Auth) error {
 	var err error
 
 	addr, err := net.ResolveTCPAddr("tcp", address)
@@ -95,10 +96,10 @@ func Get(address string, method string, writer io.Writer, param, result any, aut
 	}
 	defer conn.Close()
 
-	return ConnGet(conn, method, writer, param, result, auth)
+	return ConnGet(ctx, conn, method, writer, param, result, auth)
 }
 
-func ConnGet(conn net.Conn, method string, writer io.Writer, param, result any, auth *Auth) error {
+func ConnGet(ctx context.Context, conn net.Conn, method string, writer io.Writer, param, result any, auth *Auth) error {
 	var err error
 
 	content := CreateContent(conn)
@@ -116,30 +117,30 @@ func ConnGet(conn net.Conn, method string, writer io.Writer, param, result any,
 	content.binReader = conn
 	content.binWriter = writer
 
-	err = content.CreateRequest()
+	err = content.createRequest()
 	if err != nil {
 		return err
 	}
-	err = content.WriteRequest()
+	err = content.writeRequest()
 	if err != nil {
 		return err
 	}
-	err = content.ReadResponse()
+	err = content.readResponse()
 	if err != nil {
 		return err
 	}
-	err = content.DownloadBin()
+	err = content.downloadBin(ctx)
 	if err != nil {
 		return err
 	}
-	err = content.BindResponse()
+	err = content.bindResponse()
 	if err != nil {
 		return err
 	}
 	return err
 }
 
-func Exec(address, method string, param any, result any, auth *Auth) error {
+func Exec(ctx context.Context, address, method string, param any, result any, auth *Auth) error {
 	var err error
 
 	addr, err := net.ResolveTCPAddr("tcp", address)
@@ -153,14 +154,14 @@ func Exec(address, method string, param any, result any, auth *Auth) error {
 	}
 	defer conn.Close()
 
-	err = ConnExec(conn, method, param, result, auth)
+	err = ConnExec(ctx, conn, method, param, result, auth)
 	if err != nil {
 		return err
 	}
 	return err
 }
 
-func ConnExec(conn net.Conn, method string, param any, result any, auth *Auth) error {
+func ConnExec(ctx context.Context, conn net.Conn, method string, param any, result any, auth *Auth) error {
 	var err error
 
 	content := CreateContent(conn)
@@ -176,26 +177,26 @@ func ConnExec(conn net.Conn, method string, param any, result any, auth *Auth) e
 		content.reqBlock.Auth = auth
 	}
 
-	err = content.CreateRequest()
+	err = content.createRequest()
 	if err != nil {
 		return err
 	}
-	err = content.WriteRequest()
+	err = content.writeRequest()
 	if err != nil {
 		return err
 	}
-	err = content.ReadResponse()
+	err = content.readResponse()
 	if err != nil {
 		return err
 	}
-	err = content.BindResponse()
+	err = content.bindResponse()
 	if err != nil {
 		return err
 	}
 	return err
 }
 
-func (content *Content) CreateRequest() error {
+func (content *Content) createRequest() error {
 	var err error
 
 	content.reqPacket.rcpPayload, err = content.reqBlock.Pack()
@@ -212,7 +213,7 @@ func (content *Content) CreateRequest() error {
 	return err
 }
 
-func (content *Content) WriteRequest() error {
+func (content *Content) writeRequest() error {
 	var err error
 	_, err = content.sockWriter.Write(content.reqPacket.header)
 	if err != nil {
@@ -225,13 +226,13 @@ func (content *Content) WriteRequest() error {
 	return err
 }
 
-func (content *Content) UploadBin() error {
+func (content *Content) uploadBin(ctx context.Context) error {
 	var err error
-	_, err = CopyBytes(content.binReader, content.binWriter, content.reqHeader.binSize)
+	_, err = CopyBytes(ctx, content.binReader, content.binWriter, content.reqHeader.binSize)
 	return err
 }
 
-func (content *Content) ReadResponse() error {
+func (content *Content) readResponse() error {
 	var err error
 
 	content.resPacket.header, err = ReadBytes(content.sockReader, headerSize)
@@ -250,16 +251,16 @@ func (content *Content) ReadResponse() error {
 	return err
 }
 
-func (content *Content) UploadBinAsync(wg *sync.WaitGroup) {
+func (content *Content) uploadBinAsync(ctx context.Context, wg *sync.WaitGroup) {
 	exitFunc := func() {
 		wg.Done()
 	}
 	defer exitFunc()
-	_, _ = CopyBytes(content.binReader, content.binWriter, content.reqHeader.binSize)
+	_, _ = CopyBytes(ctx, content.binReader, content.binWriter, content.reqHeader.binSize)
 	return
 }
 
-func (content *Content) ReadResponseAsync(wg *sync.WaitGroup, errChan chan error) {
+func (content *Content) readResponseAsync(wg *sync.WaitGroup, errChan chan error) {
 	var err error
 	exitFunc := func() {
 		errChan <- err
@@ -285,13 +286,13 @@ func (content *Content) ReadResponseAsync(wg *sync.WaitGroup, errChan chan error
 	return
 }
 
-func (content *Content) DownloadBin() error {
+func (content *Content) downloadBin(ctx context.Context) error {
 	var err error
-	_, err = CopyBytes(content.binReader, content.binWriter, content.resHeader.binSize)
+	_, err = CopyBytes(ctx, content.binReader, content.binWriter, content.resHeader.binSize)
 	return err
 }
 
-func (content *Content) BindResponse() error {
+func (content *Content) bindResponse() error {
 	var err error
 
 	err = encoder.Unmarshal(content.resPacket.rcpPayload, content.resBlock)
diff --git a/example/go.mod b/example/go.mod
index bb8242a..47e7cc6 100644
--- a/example/go.mod
+++ b/example/go.mod
@@ -2,7 +2,7 @@ module netsrv
 
 go 1.19
 
-require github.com/kindsoldier/dsrpc v1.1.2
+require github.com/kindsoldier/dsrpc v1.1.4
 
 require (
 	github.com/vmihailenco/msgpack/v5 v5.3.5 // indirect
diff --git a/example/go.sum b/example/go.sum
index 8b1ee29..0ddc5d4 100644
--- a/example/go.sum
+++ b/example/go.sum
@@ -2,6 +2,8 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/kindsoldier/dsrpc v1.1.2 h1:bFTIGpRSMq5OK1a3dHQxLPMxf6R+Ik15slkqNN0QrNE=
 github.com/kindsoldier/dsrpc v1.1.2/go.mod h1:KG8x2ZPid/hPJdhkUHtt1mDulWPVhj9fh/1XL3Z2xT8=
+github.com/kindsoldier/dsrpc v1.1.4 h1:F6e1K5C7C92jKGOrH4lF/XraLe5E2glsQTeVP9avYBE=
+github.com/kindsoldier/dsrpc v1.1.4/go.mod h1:KG8x2ZPid/hPJdhkUHtt1mDulWPVhj9fh/1XL3Z2xT8=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
diff --git a/exec_test.go b/exec_test.go
index 25d5226..b9e43be 100644
--- a/exec_test.go
+++ b/exec_test.go
@@ -6,6 +6,7 @@ package dsrpc
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"errors"
 	"io"
@@ -66,7 +67,10 @@ func TestLocalSave(t *testing.T) {
 
 	reader := bytes.NewReader(binBytes)
 
-	err = LocalPut(SaveMethod, reader, binSize, &params, &result, auth, saveHandler)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = LocalPut(ctx, SaveMethod, reader, binSize, &params, &result, auth, saveHandler)
 	require.NoError(t, err)
 
 	resultJson, _ := json.Marshal(result)
@@ -84,7 +88,10 @@ func TestLocalLoad(t *testing.T) {
 	binBytes := make([]byte, 0)
 	writer := bytes.NewBuffer(binBytes)
 
-	err = LocalGet(LoadMethod, writer, &params, &result, auth, loadHandler)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = LocalGet(ctx, LoadMethod, writer, &params, &result, auth, loadHandler)
 	require.NoError(t, err)
 
 	resultJson, _ := json.Marshal(result)
@@ -141,7 +148,10 @@ func clientHello() error {
 	binBytes := make([]byte, binSize)
 	rand.Read(binBytes)
 
-	err = Exec("127.0.0.1:8081", HelloMethod, &params, &result, auth)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = Exec(ctx, "127.0.0.1:8081", HelloMethod, &params, &result, auth)
 	if err != nil {
 		logError("method err:", err)
 		return err
@@ -166,7 +176,10 @@ func clientSave() error {
 
 	reader := bytes.NewReader(binBytes)
 
-	err = Put("127.0.0.1:8081", SaveMethod, reader, binSize, &params, &result, auth)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = Put(ctx, "127.0.0.1:8081", SaveMethod, reader, binSize, &params, &result, auth)
 	if err != nil {
 		logError("method err:", err)
 		return err
@@ -187,7 +200,10 @@ func clientLoad() error {
 	binBytes := make([]byte, 0)
 	writer := bytes.NewBuffer(binBytes)
 
-	err = Get("127.0.0.1:8081", LoadMethod, writer, &params, &result, auth)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = Get(ctx, "127.0.0.1:8081", LoadMethod, writer, &params, &result, auth)
 	if err != nil {
 		logError("method err:", err)
 		return err
@@ -261,7 +277,10 @@ func helloHandler(content *Content) error {
 		return err
 	}
 
-	err = content.ReadBin(io.Discard)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = content.ReadBin(ctx, io.Discard)
 	if err != nil {
 		content.SendError(err)
 		return err
@@ -289,7 +308,10 @@ func saveHandler(content *Content) error {
 	bufferBytes := make([]byte, 0, 1024)
 	binWriter := bytes.NewBuffer(bufferBytes)
 
-	err = content.ReadBin(binWriter)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = content.ReadBin(ctx, binWriter)
 	if err != nil {
 		content.SendError(err)
 		return err
@@ -314,7 +336,10 @@ func loadHandler(content *Content) error {
 		return err
 	}
 
-	err = content.ReadBin(io.Discard)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5*time.Second))
+	defer cancel()
+
+	err = content.ReadBin(ctx, io.Discard)
 	if err != nil {
 		content.SendError(err)
 		return err
@@ -334,8 +359,9 @@ func loadHandler(content *Content) error {
 	if err != nil {
 		return err
 	}
+
 	binWriter := content.BinWriter()
-	_, err = CopyBytes(binReader, binWriter, binSize)
+	_, err = CopyBytes(ctx, binReader, binWriter, binSize)
 	if err != nil {
 		return err
 	}
diff --git a/header.go b/header.go
index 61493d9..d722390 100644
--- a/header.go
+++ b/header.go
@@ -44,16 +44,16 @@ func (hdr *Header) Pack() ([]byte, error) {
 	headerBytes := make([]byte, 0, headerSize)
 	headerBuffer := bytes.NewBuffer(headerBytes)
 
-	magicCodeABytes := encoderI64(hdr.magicCodeA)
+	magicCodeABytes := EncoderI64(hdr.magicCodeA)
 	headerBuffer.Write(magicCodeABytes)
 
-	rpcSizeBytes := encoderI64(hdr.rpcSize)
+	rpcSizeBytes := EncoderI64(hdr.rpcSize)
 	headerBuffer.Write(rpcSizeBytes)
 
-	binSizeBytes := encoderI64(hdr.binSize)
+	binSizeBytes := EncoderI64(hdr.binSize)
 	headerBuffer.Write(binSizeBytes)
 
-	magicCodeBBytes := encoderI64(hdr.magicCodeB)
+	magicCodeBBytes := EncoderI64(hdr.magicCodeB)
 	headerBuffer.Write(magicCodeBBytes)
 
 	return headerBuffer.Bytes(), err
@@ -77,10 +77,10 @@ func UnpackHeader(headerBytes []byte) (*Header, error) {
 	headerReader.Read(magicCodeBBytes)
 
 	header := &Header{
-		magicCodeA: decoderI64(magicCodeABytes),
-		rpcSize:    decoderI64(rpcSizeBytes),
-		binSize:    decoderI64(binSizeBytes),
-		magicCodeB: decoderI64(magicCodeBBytes),
+		magicCodeA: DecoderI64(magicCodeABytes),
+		rpcSize:    DecoderI64(rpcSizeBytes),
+		binSize:    DecoderI64(binSizeBytes),
+		magicCodeB: DecoderI64(magicCodeBBytes),
 	}
 
 	if header.magicCodeA != magicCodeA || header.magicCodeB != magicCodeB {
@@ -90,12 +90,12 @@ func UnpackHeader(headerBytes []byte) (*Header, error) {
 	return header, err
 }
 
-func encoderI64(i int64) []byte {
+func EncoderI64(i int64) []byte {
 	buffer := make([]byte, sizeOfInt64)
 	binary.BigEndian.PutUint64(buffer, uint64(i))
 	return buffer
 }
 
-func decoderI64(b []byte) int64 {
+func DecoderI64(b []byte) int64 {
 	return int64(binary.BigEndian.Uint64(b))
 }
diff --git a/server.go b/server.go
index cdfb847..3350ed5 100644
--- a/server.go
+++ b/server.go
@@ -232,9 +232,9 @@ func (content *Content) BinSize() int64 {
 	return content.reqHeader.binSize
 }
 
-func (content *Content) ReadBin(writer io.Writer) error {
+func (content *Content) ReadBin(ctx context.Context, writer io.Writer) error {
 	var err error
-	_, err = CopyBytes(content.sockReader, writer, content.reqHeader.binSize)
+	_, err = CopyBytes(ctx, content.sockReader, writer, content.reqHeader.binSize)
 	return err
 }
 
diff --git a/tools.go b/tools.go
index 10721c4..259b106 100644
--- a/tools.go
+++ b/tools.go
@@ -5,6 +5,7 @@
 package dsrpc
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
@@ -16,7 +17,7 @@ func ReadBytes(reader io.Reader, size int64) ([]byte, error) {
 	return buffer[0:read], err
 }
 
-func CopyBytes(reader io.Reader, writer io.Writer, dataSize int64) (int64, error) {
+func CopyBytes(ctx context.Context, reader io.Reader, writer io.Writer, dataSize int64) (int64, error) {
 	var err error
 	var bSize int64 = 1024 * 16
 	var total int64 = 0
@@ -24,6 +25,12 @@ func CopyBytes(reader io.Reader, writer io.Writer, dataSize int64) (int64, error
 	buffer := make([]byte, bSize)
 
 	for {
+		select {
+		case <-ctx.Done():
+			return total, errors.New("break by context")
+		default:
+		}
+
 		if reader == nil {
 			return total, errors.New("reader is nil")
 		}
diff --git a/validate.go b/validate.go
index 55bc762..9b60619 100644
--- a/validate.go
+++ b/validate.go
@@ -5,6 +5,7 @@
 package dsrpc
 
 import (
+	"context"
 	"io"
 	"net"
 )
@@ -27,11 +28,11 @@ func LocalExec(method string, param, result any, auth *Auth, handler HandlerFunc
 		content.resBlock.Result = result
 	}
 
-	err = content.CreateRequest()
+	err = content.createRequest()
 	if err != nil {
 		return err
 	}
-	err = content.WriteRequest()
+	err = content.writeRequest()
 	if err != nil {
 		return err
 	}
@@ -39,11 +40,11 @@ func LocalExec(method string, param, result any, auth *Auth, handler HandlerFunc
 	if err != nil {
 		return err
 	}
-	err = content.ReadResponse()
+	err = content.readResponse()
 	if err != nil {
 		return err
 	}
-	err = content.BindResponse()
+	err = content.bindResponse()
 	if err != nil {
 		return err
 	}
@@ -51,7 +52,7 @@ func LocalExec(method string, param, result any, auth *Auth, handler HandlerFunc
 	return err
 }
 
-func LocalPut(method string, reader io.Reader, size int64, param, result any, auth *Auth, handler HandlerFunc) error {
+func LocalPut(ctx context.Context, method string, reader io.Reader, size int64, param, result any, auth *Auth, handler HandlerFunc) error {
 
 	var err error
 
@@ -75,15 +76,15 @@ func LocalPut(method string, reader io.Reader, size int64, param, result any, au
 
 	content.reqHeader.binSize = size
 
-	err = content.CreateRequest()
+	err = content.createRequest()
 	if err != nil {
 		return err
 	}
-	err = content.WriteRequest()
+	err = content.writeRequest()
 	if err != nil {
 		return err
 	}
-	err = content.UploadBin()
+	err = content.uploadBin(ctx)
 	if err != nil {
 		return err
 	}
@@ -91,18 +92,18 @@ func LocalPut(method string, reader io.Reader, size int64, param, result any, au
 	if err != nil {
 		return err
 	}
-	err = content.ReadResponse()
+	err = content.readResponse()
 	if err != nil {
 		return err
 	}
-	err = content.BindResponse()
+	err = content.bindResponse()
 	if err != nil {
 		return err
 	}
 	return err
 }
 
-func LocalGet(method string, writer io.Writer, param, result any, auth *Auth, handler HandlerFunc) error {
+func LocalGet(ctx context.Context, method string, writer io.Writer, param, result any, auth *Auth, handler HandlerFunc) error {
 	var err error
 
 	cliConn, srvConn := NewFConn()
@@ -123,11 +124,11 @@ func LocalGet(method string, writer io.Writer, param, result any, auth *Auth, ha
 	content.binReader = cliConn
 	content.binWriter = writer
 
-	err = content.CreateRequest()
+	err = content.createRequest()
 	if err != nil {
 		return err
 	}
-	err = content.WriteRequest()
+	err = content.writeRequest()
 	if err != nil {
 		return err
 	}
@@ -136,15 +137,15 @@ func LocalGet(method string, writer io.Writer, param, result any, auth *Auth, ha
 	if err != nil {
 		return err
 	}
-	err = content.ReadResponse()
+	err = content.readResponse()
 	if err != nil {
 		return err
 	}
-	err = content.DownloadBin()
+	err = content.downloadBin(ctx)
 	if err != nil {
 		return err
 	}
-	err = content.BindResponse()
+	err = content.bindResponse()
 	if err != nil {
 		return err
 	}