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Code Issues Releases Wiki Activity

refactor buffer

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This commit is contained in:
Darien Raymond 2016-12-09 12:08:25 +01:00
parent 7a80409e30
commit 055023fdd5
No known key found for this signature in database
GPG Key ID: 7251FFA14BB18169
53 changed files with 220 additions and 284 deletions
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2
app/dispatcher/impl/default.go
View File

@ -62,7 +62,7 @@ func (v *DefaultDispatcher) DispatchToOutbound(session *proxy.SessionInfo) ray.I
}
if session.Inbound != nil && session.Inbound.AllowPassiveConnection {
go dispatcher.Dispatch(destination, buf.NewLocalBuffer(32), direct)
go dispatcher.Dispatch(destination, buf.NewLocal(32), direct)
} else {
go v.FilterPacketAndDispatch(destination, direct, dispatcher)
}

2
app/dispatcher/testing/dispatcher.go
View File

@ -20,7 +20,7 @@ func NewTestPacketDispatcher(handler func(destination v2net.Destination, traffic
if err != nil {
break
}
output := buf.NewBuffer()
output := buf.New()
output.Append([]byte("Processed: "))
output.Append(payload.Bytes())
payload.Release()

2
app/dns/nameserver.go
View File

@ -145,7 +145,7 @@ func (v *UDPNameServer) HandleResponse(dest v2net.Destination, payload *buf.Buff
}
func (v *UDPNameServer) BuildQueryA(domain string, id uint16) *buf.Buffer {
buffer := buf.NewBuffer()
buffer := buf.New()
msg := new(dns.Msg)
msg.Id = id
msg.RecursionDesired = true

43
common/buf/buffer.go
View File

@ -1,12 +1,12 @@
// Package alloc provides a light-weight memory allocation mechanism.
// Package buf provides a light-weight memory allocation mechanism.
package buf
import (
"io"
)
// BytesWriter is a writer that writes contents into the given buffer.
type BytesWriter func([]byte) int
// Supplier is a writer that writes contents into the given buffer.
type Supplier func([]byte) (int, error)
// Buffer is a recyclable allocation of a byte array. Buffer.Release() recycles
// the buffer into an internal buffer pool, in order to recreate a buffer more
@ -59,10 +59,11 @@ func (b *Buffer) Append(data []byte) {
b.end += nBytes
}
// AppendFunc appends the content of a BytesWriter to the buffer.
func (b *Buffer) AppendFunc(writer BytesWriter) {
nBytes := writer(b.v[b.end:])
// AppendSupplier appends the content of a BytesWriter to the buffer.
func (b *Buffer) AppendSupplier(writer Supplier) error {
nBytes, err := writer(b.v[b.end:])
b.end += nBytes
return err
}
// Byte returns the bytes at index.
@ -80,9 +81,11 @@ func (b *Buffer) Bytes() []byte {
return b.v[b.start:b.end]
}
func (b *Buffer) SetBytesFunc(writer BytesWriter) {
func (b *Buffer) Reset(writer Supplier) error {
b.start = 0
b.end = b.start + writer(b.v[b.start:])
nBytes, err := writer(b.v[b.start:])
b.end = b.start + nBytes
return err
}
// BytesRange returns a slice of this buffer with given from and to bounary.
@ -172,33 +175,21 @@ func (b *Buffer) Read(data []byte) (int, error) {
return nBytes, nil
}
func (b *Buffer) FillFrom(reader io.Reader) (int, error) {
nBytes, err := reader.Read(b.v[b.end:])
b.end += nBytes
return nBytes, err
}
func (b *Buffer) FillFullFrom(reader io.Reader, amount int) (int, error) {
nBytes, err := io.ReadFull(reader, b.v[b.end:b.end+amount])
b.end += nBytes
return nBytes, err
}
func (b *Buffer) String() string {
return string(b.Bytes())
}
// NewBuffer creates a Buffer with 8K bytes of arbitrary content.
func NewBuffer() *Buffer {
// New creates a Buffer with 8K bytes of arbitrary content.
func New() *Buffer {
return mediumPool.Allocate()
}
// NewSmallBuffer returns a buffer with 2K bytes capacity.
func NewSmallBuffer() *Buffer {
// NewSmall returns a buffer with 2K bytes capacity.
func NewSmall() *Buffer {
return smallPool.Allocate()
}
// NewLocalBuffer creates and returns a buffer on current thread.
func NewLocalBuffer(size int) *Buffer {
// NewLocal creates and returns a buffer on current thread.
func NewLocal(size int) *Buffer {
return CreateBuffer(make([]byte, size), nil)
}

10
common/buf/buffer_pool.go
View File

@ -84,15 +84,15 @@ func (p *BufferPool) Free(buffer *Buffer) {
}
const (
BufferSize = 8 * 1024
SmallBufferSize = 2 * 1024
Size = 8 * 1024
SizeSmall = 2 * 1024
PoolSizeEnvKey = "v2ray.buffer.size"
)
var (
mediumPool Pool
smallPool = NewSyncPool(2048)
smallPool = NewSyncPool(SizeSmall)
)
func init() {
@ -106,8 +106,8 @@ func init() {
}
if size > 0 {
totalByteSize := size * 1024 * 1024
mediumPool = NewBufferPool(BufferSize, totalByteSize/BufferSize)
mediumPool = NewBufferPool(Size, totalByteSize/Size)
} else {
mediumPool = NewSyncPool(BufferSize)
mediumPool = NewSyncPool(Size)
}
}

20
common/buf/buffer_test.go
View File

@ -11,7 +11,7 @@ import (
func TestBufferClear(t *testing.T) {
assert := assert.On(t)
buffer := NewBuffer()
buffer := New()
defer buffer.Release()
payload := "Bytes"
@ -25,7 +25,7 @@ func TestBufferClear(t *testing.T) {
func TestBufferIsEmpty(t *testing.T) {
assert := assert.On(t)
buffer := NewBuffer()
buffer := New()
defer buffer.Release()
assert.Bool(buffer.IsEmpty()).IsTrue()
@ -34,17 +34,17 @@ func TestBufferIsEmpty(t *testing.T) {
func TestBufferString(t *testing.T) {
assert := assert.On(t)
buffer := NewBuffer()
buffer := New()
defer buffer.Release()
buffer.AppendFunc(serial.WriteString("Test String"))
buffer.AppendSupplier(serial.WriteString("Test String"))
assert.String(buffer.String()).Equals("Test String")
}
func TestBufferWrite(t *testing.T) {
assert := assert.On(t)
buffer := NewLocalBuffer(8)
buffer := NewLocal(8)
nBytes, err := buffer.Write([]byte("abcd"))
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(4)
@ -56,28 +56,28 @@ func TestBufferWrite(t *testing.T) {
func BenchmarkNewBuffer8192(b *testing.B) {
for i := 0; i < b.N; i++ {
buffer := NewBuffer()
buffer := New()
buffer.Release()
}
}
func BenchmarkNewLocalBuffer8192(b *testing.B) {
for i := 0; i < b.N; i++ {
buffer := NewLocalBuffer(8192)
buffer := NewLocal(8192)
buffer.Release()
}
}
func BenchmarkNewBuffer2048(b *testing.B) {
for i := 0; i < b.N; i++ {
buffer := NewSmallBuffer()
buffer := NewSmall()
buffer.Release()
}
}
func BenchmarkNewLocalBuffer2048(b *testing.B) {
for i := 0; i < b.N; i++ {
buffer := NewLocalBuffer(2048)
buffer := NewLocal(2048)
buffer.Release()
}
}
@ -94,7 +94,7 @@ func BenchmarkBufferValue(b *testing.B) {
}
func BenchmarkBufferPointer(b *testing.B) {
x := NewSmallBuffer()
x := NewSmall()
doSomething := func(a *Buffer) {
_ = a.Len()
}

15
common/buf/io.go Normal file
View File

@ -0,0 +1,15 @@
package buf
import "io"
func ReadFrom(reader io.Reader) Supplier {
return func(b []byte) (int, error) {
return reader.Read(b)
}
}
func ReadFullFrom(reader io.Reader, size int) Supplier {
return func(b []byte) (int, error) {
return io.ReadFull(reader, b[:size])
}
}

8
common/crypto/auth.go
View File

@ -81,7 +81,7 @@ type AuthenticationReader struct {
func NewAuthenticationReader(auth Authenticator, reader io.Reader, aggressive bool) *AuthenticationReader {
return &AuthenticationReader{
auth: auth,
buffer: buf.NewLocalBuffer(32 * 1024),
buffer: buf.NewLocal(32 * 1024),
reader: reader,
aggressive: aggressive,
}
@ -135,11 +135,11 @@ func (v *AuthenticationReader) EnsureChunk() error {
v.buffer.Clear()
} else {
leftover := v.buffer.Bytes()
v.buffer.SetBytesFunc(func(b []byte) int {
return copy(b, leftover)
v.buffer.Reset(func(b []byte) (int, error) {
return copy(b, leftover), nil
})
}
_, err = v.buffer.FillFrom(v.reader)
err = v.buffer.AppendSupplier(buf.ReadFrom(v.reader))
}
return err
}

4
common/io/buffered_reader.go
View File

@ -17,7 +17,7 @@ type BufferedReader struct {
func NewBufferedReader(rawReader io.Reader) *BufferedReader {
return &BufferedReader{
reader: rawReader,
buffer: buf.NewBuffer(),
buffer: buf.New(),
cached: true,
}
}
@ -54,7 +54,7 @@ func (v *BufferedReader) Read(b []byte) (int, error) {
return v.reader.Read(b)
}
if v.buffer.IsEmpty() {
_, err := v.buffer.FillFrom(v.reader)
err := v.buffer.AppendSupplier(buf.ReadFrom(v.reader))
if err != nil {
return 0, err
}

6
common/io/buffered_reader_test.go
View File

@ -1,9 +1,9 @@
package io_test
import (
"crypto/rand"
"testing"
"crypto/rand"
"v2ray.com/core/common/buf"
. "v2ray.com/core/common/io"
"v2ray.com/core/testing/assert"
@ -12,8 +12,8 @@ import (
func TestBufferedReader(t *testing.T) {
assert := assert.On(t)
content := buf.NewBuffer()
content.FillFrom(rand.Reader)
content := buf.New()
content.AppendSupplier(buf.ReadFrom(rand.Reader))
len := content.Len()

8
common/io/buffered_writer.go
View File

@ -3,6 +3,7 @@ package io
import (
"io"
"sync"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/errors"
)
@ -17,7 +18,7 @@ type BufferedWriter struct {
func NewBufferedWriter(rawWriter io.Writer) *BufferedWriter {
return &BufferedWriter{
writer: rawWriter,
buffer: buf.NewSmallBuffer(),
buffer: buf.NewSmall(),
cached: true,
}
}
@ -32,8 +33,9 @@ func (v *BufferedWriter) ReadFrom(reader io.Reader) (int64, error) {
totalBytes := int64(0)
for {
nBytes, err := v.buffer.FillFrom(reader)
totalBytes += int64(nBytes)
oriSize := v.buffer.Len()
err := v.buffer.AppendSupplier(buf.ReadFrom(reader))
totalBytes += int64(v.buffer.Len() - oriSize)
if err != nil {
if errors.Cause(err) == io.EOF {
return totalBytes, nil

4
common/io/buffered_writer_test.go
View File

@ -12,7 +12,7 @@ import (
func TestBufferedWriter(t *testing.T) {
assert := assert.On(t)
content := buf.NewBuffer()
content := buf.New()
writer := NewBufferedWriter(content)
assert.Bool(writer.Cached()).IsTrue()
@ -32,7 +32,7 @@ func TestBufferedWriter(t *testing.T) {
func TestBufferedWriterLargePayload(t *testing.T) {
assert := assert.On(t)
content := buf.NewLocalBuffer(128 * 1024)
content := buf.NewLocal(128 * 1024)
writer := NewBufferedWriter(content)
assert.Bool(writer.Cached()).IsTrue()

2
common/io/chain_writer.go
View File

@ -28,7 +28,7 @@ func (v *ChainWriter) Write(payload []byte) (int, error) {
bytesWritten := 0
size := len(payload)
for size > 0 {
buffer := buf.NewBuffer()
buffer := buf.New()
nBytes, _ := buffer.Write(payload)
size -= nBytes
payload = payload[nBytes:]

12
common/io/reader.go
View File

@ -33,24 +33,24 @@ func NewAdaptiveReader(reader io.Reader) *AdaptiveReader {
func (v *AdaptiveReader) Read() (*buf.Buffer, error) {
if v.highVolumn && v.largeBuffer.IsEmpty() {
if v.largeBuffer == nil {
v.largeBuffer = buf.NewLocalBuffer(32 * 1024)
v.largeBuffer = buf.NewLocal(32 * 1024)
}
nBytes, err := v.largeBuffer.FillFrom(v.reader)
err := v.largeBuffer.AppendSupplier(buf.ReadFrom(v.reader))
if err != nil {
return nil, err
}
if nBytes < buf.BufferSize {
if v.largeBuffer.Len() < buf.Size {
v.highVolumn = false
}
}
buffer := buf.NewBuffer()
buffer := buf.New()
if !v.largeBuffer.IsEmpty() {
buffer.FillFrom(v.largeBuffer)
buffer.AppendSupplier(buf.ReadFrom(v.largeBuffer))
return buffer, nil
}
_, err := buffer.FillFrom(v.reader)
err := buffer.AppendSupplier(buf.ReadFrom(v.reader))
if err != nil {
buffer.Release()
return nil, err

4
common/io/reader_test.go
View File

@ -19,8 +19,8 @@ func TestAdaptiveReader(t *testing.T) {
b1, err := reader.Read()
assert.Error(err).IsNil()
assert.Bool(b1.IsFull()).IsTrue()
assert.Int(b1.Len()).Equals(buf.BufferSize)
assert.Int(buffer.Len()).Equals(cap(rawContent) - buf.BufferSize)
assert.Int(b1.Len()).Equals(buf.Size)
assert.Int(buffer.Len()).Equals(cap(rawContent) - buf.Size)
b2, err := reader.Read()
assert.Error(err).IsNil()

4
common/io/writer_test.go
View File

@ -13,8 +13,8 @@ import (
func TestAdaptiveWriter(t *testing.T) {
assert := assert.On(t)
lb := buf.NewBuffer()
lb.FillFrom(rand.Reader)
lb := buf.New()
lb.AppendSupplier(buf.ReadFrom(rand.Reader))
expectedBytes := append([]byte(nil), lb.Bytes()...)

6
common/serial/hash.go
View File

@ -6,9 +6,9 @@ import (
"v2ray.com/core/common/buf"
)
func WriteHash(h hash.Hash) buf.BytesWriter {
return func(b []byte) int {
func WriteHash(h hash.Hash) buf.Supplier {
return func(b []byte) (int, error) {
h.Sum(b[:0])
return h.Size()
return h.Size(), nil
}
}

12
common/serial/numbers.go
View File

@ -14,10 +14,10 @@ func Uint16ToString(value uint16) string {
return strconv.Itoa(int(value))
}
func WriteUint16(value uint16) buf.BytesWriter {
return func(b []byte) int {
func WriteUint16(value uint16) buf.Supplier {
return func(b []byte) (int, error) {
b = Uint16ToBytes(value, b[:0])
return 2
return 2, nil
}
}
@ -29,10 +29,10 @@ func Uint32ToString(value uint32) string {
return strconv.FormatUint(uint64(value), 10)
}
func WriteUint32(value uint32) buf.BytesWriter {
return func(b []byte) int {
func WriteUint32(value uint32) buf.Supplier {
return func(b []byte) (int, error) {
b = Uint32ToBytes(value, b[:0])
return 4
return 4, nil
}
}

7
common/serial/string.go
View File

@ -36,9 +36,8 @@ func Concat(v ...interface{}) string {
return strings.Join(values, "")
}
func WriteString(s string) buf.BytesWriter {
return func(b []byte) int {
copy(b, []byte(s))
return len(s)
func WriteString(s string) buf.Supplier {
return func(b []byte) (int, error) {
return copy(b, []byte(s)), nil
}
}

4
proxy/blackhole/config.go
View File

@ -32,8 +32,8 @@ func (v *NoneResponse) AsAny() *any.Any {
}
func (v *HTTPResponse) WriteTo(writer v2io.Writer) {
b := buf.NewLocalBuffer(512)
b.AppendFunc(serial.WriteString(http403response))
b := buf.NewLocal(512)
b.AppendSupplier(serial.WriteString(http403response))
writer.Write(b)
}

2
proxy/blackhole/config_test.go
View File

@ -14,7 +14,7 @@ import (
func TestHTTPResponse(t *testing.T) {
assert := assert.On(t)
buffer := buf.NewBuffer()
buffer := buf.New()
httpResponse := new(HTTPResponse)
httpResponse.WriteTo(v2io.NewAdaptiveWriter(buffer))

2
proxy/freedom/freedom_test.go
View File

@ -47,7 +47,7 @@ func TestSinglePacket(t *testing.T) {
traffic := ray.NewRay()
data2Send := "Data to be sent to remote"
payload := buf.NewLocalBuffer(2048)
payload := buf.NewLocal(2048)
payload.Append([]byte(data2Send))
go freedom.Dispatch(v2net.TCPDestination(v2net.LocalHostIP, tcpServer.Port), payload, traffic)

17
proxy/shadowsocks/ota.go
View File

@ -27,13 +27,12 @@ func NewAuthenticator(keygen KeyGenerator) *Authenticator {
}
}
func (v *Authenticator) Authenticate(data []byte) buf.BytesWriter {
func (v *Authenticator) Authenticate(data []byte) buf.Supplier {
hasher := hmac.New(sha1.New, v.key())
hasher.Write(data)
res := hasher.Sum(nil)
return func(b []byte) int {
copy(b, res[:AuthSize])
return AuthSize
return func(b []byte) (int, error) {
return copy(b, res[:AuthSize]), nil
}
}
@ -75,22 +74,22 @@ func (v *ChunkReader) Release() {
}
func (v *ChunkReader) Read() (*buf.Buffer, error) {
buffer := buf.NewBuffer()
if _, err := buffer.FillFullFrom(v.reader, 2); err != nil {
buffer := buf.New()
if err := buffer.AppendSupplier(buf.ReadFullFrom(v.reader, 2)); err != nil {
buffer.Release()
return nil, err
}
// There is a potential buffer overflow here. Large buffer is 64K bytes,
// while uin16 + 10 will be more than that
length := serial.BytesToUint16(buffer.BytesTo(2)) + AuthSize
if length > buf.BufferSize {
if length > buf.Size {
// Theoretically the size of a chunk is 64K, but most Shadowsocks implementations used <4K buffer.
buffer.Release()
buffer = buf.NewLocalBuffer(int(length) + 128)
buffer = buf.NewLocal(int(length) + 128)
}
buffer.Clear()
if _, err := buffer.FillFullFrom(v.reader, int(length)); err != nil {
if err := buffer.AppendSupplier(buf.ReadFullFrom(v.reader, int(length))); err != nil {
buffer.Release()
return nil, err
}

6
proxy/shadowsocks/ota_test.go
View File

@ -11,7 +11,7 @@ import (
func TestNormalChunkReading(t *testing.T) {
assert := assert.On(t)
buffer := buf.NewBuffer()
buffer := buf.New()
buffer.AppendBytes(
0, 8, 39, 228, 69, 96, 133, 39, 254, 26, 201, 70, 11, 12, 13, 14, 15, 16, 17, 18)
reader := NewChunkReader(buffer, NewAuthenticator(ChunkKeyGenerator(
@ -24,11 +24,11 @@ func TestNormalChunkReading(t *testing.T) {
func TestNormalChunkWriting(t *testing.T) {
assert := assert.On(t)
buffer := buf.NewLocalBuffer(512)
buffer := buf.NewLocal(512)
writer := NewChunkWriter(buffer, NewAuthenticator(ChunkKeyGenerator(
[]byte{21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36})))
b := buf.NewLocalBuffer(256)
b := buf.NewLocal(256)
b.Append([]byte{11, 12, 13, 14, 15, 16, 17, 18})
err := writer.Write(b)
assert.Error(err).IsNil()

37
proxy/shadowsocks/protocol.go
View File

@ -4,6 +4,7 @@ import (
"bytes"
"crypto/rand"
"io"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/crypto"
"v2ray.com/core/common/errors"
@ -29,11 +30,11 @@ func ReadTCPSession(user *protocol.User, reader io.Reader) (*protocol.RequestHea
}
account := rawAccount.(*ShadowsocksAccount)
buffer := buf.NewLocalBuffer(512)
buffer := buf.NewLocal(512)
defer buffer.Release()
ivLen := account.Cipher.IVSize()
_, err = buffer.FillFullFrom(reader, ivLen)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, ivLen))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read IV.")
}
@ -54,7 +55,7 @@ func ReadTCPSession(user *protocol.User, reader io.Reader) (*protocol.RequestHea
}
buffer.Clear()
_, err = buffer.FillFullFrom(reader, 1)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 1))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read address type.")
}
@ -74,24 +75,24 @@ func ReadTCPSession(user *protocol.User, reader io.Reader) (*protocol.RequestHea
switch addrType {
case AddrTypeIPv4:
_, err := buffer.FillFullFrom(reader, 4)
err := buffer.AppendSupplier(buf.ReadFullFrom(reader, 4))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read IPv4 address.")
}
request.Address = v2net.IPAddress(buffer.BytesFrom(-4))
case AddrTypeIPv6:
_, err := buffer.FillFullFrom(reader, 16)
err := buffer.AppendSupplier(buf.ReadFullFrom(reader, 16))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read IPv6 address.")
}
request.Address = v2net.IPAddress(buffer.BytesFrom(-16))
case AddrTypeDomain:
_, err := buffer.FillFullFrom(reader, 1)
err := buffer.AppendSupplier(buf.ReadFullFrom(reader, 1))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read domain lenth.")
}
domainLength := int(buffer.BytesFrom(-1)[0])
_, err = buffer.FillFullFrom(reader, domainLength)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, domainLength))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read domain.")
}
@ -100,7 +101,7 @@ func ReadTCPSession(user *protocol.User, reader io.Reader) (*protocol.RequestHea
return nil, nil, errors.New("Shadowsocks|TCP: Unknown address type: ", addrType)
}
_, err = buffer.FillFullFrom(reader, 2)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 2))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read port.")
}
@ -110,7 +111,7 @@ func ReadTCPSession(user *protocol.User, reader io.Reader) (*protocol.RequestHea
actualAuth := make([]byte, AuthSize)
authenticator.Authenticate(buffer.Bytes())(actualAuth)
_, err := buffer.FillFullFrom(reader, AuthSize)
err := buffer.AppendSupplier(buf.ReadFullFrom(reader, AuthSize))
if err != nil {
return nil, nil, errors.Base(err).Message("Shadowsocks|TCP: Failed to read OTA.")
}
@ -152,7 +153,7 @@ func WriteTCPRequest(request *protocol.RequestHeader, writer io.Writer) (v2io.Wr
writer = crypto.NewCryptionWriter(stream, writer)
header := buf.NewLocalBuffer(512)
header := buf.NewLocal(512)
switch request.Address.Family() {
case v2net.AddressFamilyIPv4:
@ -168,13 +169,13 @@ func WriteTCPRequest(request *protocol.RequestHeader, writer io.Writer) (v2io.Wr
return nil, errors.New("Shadowsocks|TCP: Unsupported address type: ", request.Address.Family())
}
header.AppendFunc(serial.WriteUint16(uint16(request.Port)))
header.AppendSupplier(serial.WriteUint16(uint16(request.Port)))
if request.Option.Has(RequestOptionOneTimeAuth) {
header.SetByte(0, header.Byte(0)|0x10)
authenticator := NewAuthenticator(HeaderKeyGenerator(account.Key, iv))
header.AppendFunc(authenticator.Authenticate(header.Bytes()))
header.AppendSupplier(authenticator.Authenticate(header.Bytes()))
}
_, err = writer.Write(header.Bytes())
@ -243,9 +244,9 @@ func EncodeUDPPacket(request *protocol.RequestHeader, payload *buf.Buffer) (*buf
}
account := rawAccount.(*ShadowsocksAccount)
buffer := buf.NewSmallBuffer()
buffer := buf.NewSmall()
ivLen := account.Cipher.IVSize()
buffer.FillFullFrom(rand.Reader, ivLen)
buffer.AppendSupplier(buf.ReadFullFrom(rand.Reader, ivLen))
iv := buffer.Bytes()
switch request.Address.Family() {
@ -262,14 +263,14 @@ func EncodeUDPPacket(request *protocol.RequestHeader, payload *buf.Buffer) (*buf
return nil, errors.New("Shadowsocks|UDP: Unsupported address type: ", request.Address.Family())
}
buffer.AppendFunc(serial.WriteUint16(uint16(request.Port)))
buffer.AppendSupplier(serial.WriteUint16(uint16(request.Port)))
buffer.Append(payload.Bytes())
if request.Option.Has(RequestOptionOneTimeAuth) {
authenticator := NewAuthenticator(HeaderKeyGenerator(account.Key, iv))
buffer.SetByte(ivLen, buffer.Byte(ivLen)|0x10)
buffer.AppendFunc(authenticator.Authenticate(buffer.BytesFrom(ivLen)))
buffer.AppendSupplier(authenticator.Authenticate(buffer.BytesFrom(ivLen)))
}
stream, err := account.Cipher.NewEncodingStream(account.Key, iv)
@ -360,8 +361,8 @@ type UDPReader struct {
}
func (v *UDPReader) Read() (*buf.Buffer, error) {
buffer := buf.NewSmallBuffer()
_, err := buffer.FillFrom(v.Reader)
buffer := buf.NewSmall()
err := buffer.AppendSupplier(buf.ReadFrom(v.Reader))
if err != nil {
buffer.Release()
return nil, err

20
proxy/shadowsocks/protocol_test.go
View File

@ -30,8 +30,8 @@ func TestUDPEncoding(t *testing.T) {
},
}
data := buf.NewLocalBuffer(256)
data.AppendFunc(serial.WriteString("test string"))
data := buf.NewLocal(256)
data.AppendSupplier(serial.WriteString("test string"))
encodedData, err := EncodeUDPPacket(request, data)
assert.Error(err).IsNil()
@ -60,9 +60,9 @@ func TestTCPRequest(t *testing.T) {
},
}
data := buf.NewLocalBuffer(256)
data.AppendFunc(serial.WriteString("test string"))
cache := buf.NewBuffer()
data := buf.NewLocal(256)
data.AppendSupplier(serial.WriteString("test string"))
cache := buf.New()
writer, err := WriteTCPRequest(request, cache)
assert.Error(err).IsNil()
@ -88,7 +88,7 @@ func TestUDPReaderWriter(t *testing.T) {
CipherType: CipherType_CHACHA20_IEFT,
}),
}
cache := buf.NewBuffer()
cache := buf.New()
writer := &UDPWriter{
Writer: cache,
Request: &protocol.RequestHeader{
@ -105,8 +105,8 @@ func TestUDPReaderWriter(t *testing.T) {
User: user,
}
b := buf.NewBuffer()
b.AppendFunc(serial.WriteString("test payload"))
b := buf.New()
b.AppendSupplier(serial.WriteString("test payload"))
err := writer.Write(b)
assert.Error(err).IsNil()
@ -114,8 +114,8 @@ func TestUDPReaderWriter(t *testing.T) {
assert.Error(err).IsNil()
assert.String(payload.String()).Equals("test payload")
b = buf.NewBuffer()
b.AppendFunc(serial.WriteString("test payload 2"))
b = buf.New()
b.AppendSupplier(serial.WriteString("test payload 2"))
err = writer.Write(b)
assert.Error(err).IsNil()

23
proxy/socks/protocol/socks.go
View File

@ -3,12 +3,13 @@ package protocol
import (
"fmt"
"io"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/crypto"
"v2ray.com/core/common/errors"
"v2ray.com/core/common/log"
v2net "v2ray.com/core/common/net"
"v2ray.com/core/proxy"
"v2ray.com/core/common/crypto"
)
const (
@ -120,10 +121,10 @@ func (request Socks5UserPassRequest) AuthDetail() string {
}
func ReadUserPassRequest(reader io.Reader) (request Socks5UserPassRequest, err error) {
buffer := buf.NewLocalBuffer(512)
buffer := buf.NewLocal(512)
defer buffer.Release()
_, err = buffer.FillFullFrom(reader, 2)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 2))
if err != nil {
return
}
@ -131,18 +132,18 @@ func ReadUserPassRequest(reader io.Reader) (request Socks5UserPassRequest, err e
nUsername := int(buffer.Byte(1))
buffer.Clear()
_, err = buffer.FillFullFrom(reader, nUsername)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, nUsername))
if err != nil {
return
}
request.username = string(buffer.Bytes())
_, err = buffer.FillFullFrom(reader, 1)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 1))
if err != nil {
return
}
nPassword := int(buffer.Byte(0))
_, err = buffer.FillFullFrom(reader, nPassword)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, nPassword))
if err != nil {
return
}
@ -188,10 +189,10 @@ type Socks5Request struct {
}
func ReadRequest(reader io.Reader) (request *Socks5Request, err error) {
buffer := buf.NewLocalBuffer(512)
buffer := buf.NewLocal(512)
defer buffer.Release()
_, err = buffer.FillFullFrom(reader, 4)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 4))
if err != nil {
return
}
@ -210,12 +211,12 @@ func ReadRequest(reader io.Reader) (request *Socks5Request, err error) {
}
case AddrTypeDomain:
buffer.Clear()
_, err = buffer.FillFullFrom(reader, 1)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 1))
if err != nil {
return
}
domainLength := int(buffer.Byte(0))
_, err = buffer.FillFullFrom(reader, domainLength)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, domainLength))
if err != nil {
return
}
@ -231,7 +232,7 @@ func ReadRequest(reader io.Reader) (request *Socks5Request, err error) {
return
}
_, err = buffer.FillFullFrom(reader, 2)
err = buffer.AppendSupplier(buf.ReadFullFrom(reader, 2))
if err != nil {
return
}

2
proxy/socks/protocol/socks4_test.go
View File

@ -31,7 +31,7 @@ func TestSocks4AuthenticationResponseToBytes(t *testing.T) {
response := NewSocks4AuthenticationResponse(byte(0x10), 443, []byte{1, 2, 3, 4})
buffer := buf.NewLocalBuffer(2048)
buffer := buf.NewLocal(2048)
defer buffer.Release()
response.Write(buffer)

20
proxy/socks/protocol/socks_test.go
View File

@ -6,10 +6,10 @@ import (
"testing"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/crypto"
v2net "v2ray.com/core/common/net"
"v2ray.com/core/proxy"
"v2ray.com/core/testing/assert"
"v2ray.com/core/common/crypto"
)
func TestHasAuthenticationMethod(t *testing.T) {
@ -30,7 +30,7 @@ func TestHasAuthenticationMethod(t *testing.T) {
func TestAuthenticationRequestRead(t *testing.T) {
assert := assert.On(t)
buffer := buf.NewBuffer()
buffer := buf.New()
buffer.AppendBytes(
0x05, // version
0x01, // nMethods
@ -85,7 +85,7 @@ func TestResponseWrite(t *testing.T) {
[16]byte{},
v2net.Port(53),
}
buffer := buf.NewLocalBuffer(2048)
buffer := buf.NewLocal(2048)
defer buffer.Release()
response.Write(buffer)
@ -106,7 +106,7 @@ func TestSetIPv6(t *testing.T) {
response := NewSocks5Response()
response.SetIPv6([]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15})
buffer := buf.NewLocalBuffer(2048)
buffer := buf.NewLocal(2048)
defer buffer.Release()
response.Write(buffer)
assert.Bytes(buffer.Bytes()).Equals([]byte{
@ -119,7 +119,7 @@ func TestSetDomain(t *testing.T) {
response := NewSocks5Response()
response.SetDomain("v2ray.com")
buffer := buf.NewLocalBuffer(2048)
buffer := buf.NewLocal(2048)
defer buffer.Release()
response.Write(buffer)
assert.Bytes(buffer.Bytes()).Equals([]byte{
@ -129,7 +129,7 @@ func TestSetDomain(t *testing.T) {
func TestEmptyAuthRequest(t *testing.T) {
assert := assert.On(t)
_, _, err := ReadAuthentication(buf.NewBuffer())
_, _, err := ReadAuthentication(buf.New())
assert.Error(err).Equals(io.EOF)
}
@ -143,7 +143,7 @@ func TestSingleByteAuthRequest(t *testing.T) {
func TestZeroAuthenticationMethod(t *testing.T) {
assert := assert.On(t)
buffer := buf.NewBuffer()
buffer := buf.New()
buffer.AppendBytes(5, 0)
_, _, err := ReadAuthentication(buffer)
assert.Error(err).Equals(crypto.ErrAuthenticationFailed)
@ -151,7 +151,7 @@ func TestZeroAuthenticationMethod(t *testing.T) {
func TestWrongProtocolVersion(t *testing.T) {
assert := assert.On(t)
buffer := buf.NewBuffer()
buffer := buf.New()
buffer.AppendBytes(6, 1, 0)
_, _, err := ReadAuthentication(buffer)
assert.Error(err).Equals(proxy.ErrInvalidProtocolVersion)
@ -160,14 +160,14 @@ func TestWrongProtocolVersion(t *testing.T) {
func TestEmptyRequest(t *testing.T) {
assert := assert.On(t)
_, err := ReadRequest(buf.NewBuffer())
_, err := ReadRequest(buf.New())
assert.Error(err).Equals(io.EOF)
}
func TestIPv6Request(t *testing.T) {
assert := assert.On(t)
b := buf.NewBuffer()
b := buf.New()
b.AppendBytes(5, 1, 0, 4, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 0, 8)
request, err := ReadRequest(b)
assert.Error(err).IsNil()

4
proxy/socks/protocol/udp.go
View File

@ -36,7 +36,7 @@ func (request *Socks5UDPRequest) Write(buffer *buf.Buffer) {
buffer.AppendBytes(AddrTypeDomain, byte(len(request.Address.Domain())))
buffer.Append([]byte(request.Address.Domain()))
}
buffer.AppendFunc(serial.WriteUint16(request.Port.Value()))
buffer.AppendSupplier(serial.WriteUint16(request.Port.Value()))
buffer.Append(request.Data.Bytes())
}
@ -83,7 +83,7 @@ func ReadUDPRequest(packet []byte) (*Socks5UDPRequest, error) {
}
if len(packet) > dataBegin {
b := buf.NewSmallBuffer()
b := buf.NewSmall()
b.Append(packet[dataBegin:])
request.Data = b
}

2
proxy/socks/server_udp.go
View File

@ -55,7 +55,7 @@ func (v *Server) handleUDPPayload(payload *buf.Buffer, session *proxy.SessionInf
}
log.Info("Socks: Writing back UDP response with ", payload.Len(), " bytes to ", destination)
udpMessage := buf.NewLocalBuffer(2048)
udpMessage := buf.NewLocal(2048)
response.Write(udpMessage)
v.udpMutex.RLock()

2
proxy/vmess/encoding/commands.go
View File

@ -32,7 +32,7 @@ func MarshalCommand(command interface{}, writer io.Writer) error {
return ErrUnknownCommand
}
buffer := buf.NewLocalBuffer(512)
buffer := buf.NewLocal(512)
defer buffer.Release()
err := factory.Marshal(command, buffer)

2
proxy/vmess/encoding/commands_test.go
View File

@ -21,7 +21,7 @@ func TestSwitchAccount(t *testing.T) {
ValidMin: 16,
}
buffer := buf.NewBuffer()
buffer := buf.New()
err := MarshalCommand(sa, buffer)
assert.Error(err).IsNil()

2
proxy/vmess/encoding/encoding_test.go
View File

@ -36,7 +36,7 @@ func TestRequestSerialization(t *testing.T) {
Security: protocol.Security(protocol.SecurityType_AES128_GCM),
}
buffer := buf.NewBuffer()
buffer := buf.New()
client := NewClientSession(protocol.DefaultIDHash)
client.EncodeRequestHeader(expectedRequest, buffer)

2
proxy/vmess/inbound/inbound.go
View File

@ -225,7 +225,7 @@ func (v *VMessInboundHandler) HandleConnection(connection internet.Connection) {
}
output.Release()
if request.Option.Has(protocol.RequestOptionChunkStream) {
if err := bodyWriter.Write(buf.NewLocalBuffer(8)); err != nil {
if err := bodyWriter.Write(buf.NewLocal(8)); err != nil {
connection.SetReusable(false)
}
}

2
proxy/vmess/outbound/outbound.go
View File

@ -116,7 +116,7 @@ func (v *VMessOutboundHandler) handleRequest(session *encoding.ClientSession, co
}
if request.Option.Has(protocol.RequestOptionChunkStream) {
err := bodyWriter.Write(buf.NewLocalBuffer(8))
err := bodyWriter.Write(buf.NewLocal(8))
if err != nil {
conn.SetReusable(false)
}

5
testing/scenarios/shadowsocks_test.go
View File

@ -4,6 +4,7 @@ import (
"fmt"
"net"
"testing"
"v2ray.com/core/common/buf"
v2net "v2ray.com/core/common/net"
"v2ray.com/core/testing/assert"
@ -42,11 +43,11 @@ func TestShadowsocksTCP(t *testing.T) {
//conn.CloseWrite()
response := buf.NewBuffer()
response := buf.New()
finished := false
expectedResponse := "Processed: " + payload
for {
_, err := response.FillFrom(conn)
err := response.AppendSupplier(buf.ReadFrom(conn))
assert.Error(err).IsNil()
if err != nil {
break

70
transport/internet/authenticator.go
View File

@ -1,70 +0,0 @@
package internet
import (
"v2ray.com/core/common"
"v2ray.com/core/common/buf"
)
type Authenticator interface {
Seal(*buf.Buffer)
Open(*buf.Buffer) bool
Overhead() int
}
type AuthenticatorFactory interface {
Create(interface{}) Authenticator
}
var (
authenticatorCache = make(map[string]AuthenticatorFactory)
)
func RegisterAuthenticator(name string, factory AuthenticatorFactory) error {
if _, found := authenticatorCache[name]; found {
return common.ErrDuplicatedName
}
authenticatorCache[name] = factory
return nil
}
func CreateAuthenticator(name string, config interface{}) (Authenticator, error) {
factory, found := authenticatorCache[name]
if !found {
return nil, common.ErrObjectNotFound
}
return factory.Create(config), nil
}
type AuthenticatorChain struct {
authenticators []Authenticator
}
func NewAuthenticatorChain(auths ...Authenticator) Authenticator {
return &AuthenticatorChain{
authenticators: auths,
}
}
func (v *AuthenticatorChain) Overhead() int {
total := 0
for _, auth := range v.authenticators {
total += auth.Overhead()
}
return total
}
func (v *AuthenticatorChain) Open(payload *buf.Buffer) bool {
for _, auth := range v.authenticators {
if !auth.Open(payload) {
return false
}
}
return true
}
func (v *AuthenticatorChain) Seal(payload *buf.Buffer) {
for i := len(v.authenticators) - 1; i >= 0; i-- {
auth := v.authenticators[i]
auth.Seal(payload)
}
}

2
transport/internet/header.go
View File

@ -4,7 +4,7 @@ import "v2ray.com/core/common"
type PacketHeader interface {
Size() int
Write([]byte) int
Write([]byte) (int, error)
}
type PacketHeaderFactory interface {

35
transport/internet/headers/http/http.go
View File

@ -7,6 +7,7 @@ import (
"net/http"
"strings"
"time"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/loader"
"v2ray.com/core/common/serial"
@ -46,9 +47,9 @@ type HeaderReader struct {
}
func (*HeaderReader) Read(reader io.Reader) (*buf.Buffer, error) {
buffer := buf.NewSmallBuffer()
buffer := buf.NewSmall()
for {
_, err := buffer.FillFrom(reader)
err := buffer.AppendSupplier(buf.ReadFrom(reader))
if err != nil {
return nil, err
}
@ -143,39 +144,39 @@ type HttpAuthenticator struct {
}
func (v HttpAuthenticator) GetClientWriter() *HeaderWriter {
header := buf.NewSmallBuffer()
header := buf.NewSmall()
config := v.config.Request
header.AppendFunc(serial.WriteString(strings.Join([]string{config.Method.GetValue(), config.PickUri(), config.GetFullVersion()}, " ")))
header.AppendFunc(writeCRLF)
header.AppendSupplier(serial.WriteString(strings.Join([]string{config.Method.GetValue(), config.PickUri(), config.GetFullVersion()}, " ")))
header.AppendSupplier(writeCRLF)
headers := config.PickHeaders()
for _, h := range headers {
header.AppendFunc(serial.WriteString(h))
header.AppendFunc(writeCRLF)
header.AppendSupplier(serial.WriteString(h))
header.AppendSupplier(writeCRLF)
}
header.AppendFunc(writeCRLF)
header.AppendSupplier(writeCRLF)
return &HeaderWriter{
header: header,
}
}
func (v HttpAuthenticator) GetServerWriter() *HeaderWriter {
header := buf.NewSmallBuffer()
header := buf.NewSmall()
config := v.config.Response
header.AppendFunc(serial.WriteString(strings.Join([]string{config.GetFullVersion(), config.Status.GetCode(), config.Status.GetReason()}, " ")))
header.AppendFunc(writeCRLF)
header.AppendSupplier(serial.WriteString(strings.Join([]string{config.GetFullVersion(), config.Status.GetCode(), config.Status.GetReason()}, " ")))
header.AppendSupplier(writeCRLF)
headers := config.PickHeaders()
for _, h := range headers {
header.AppendFunc(serial.WriteString(h))
header.AppendFunc(writeCRLF)
header.AppendSupplier(serial.WriteString(h))
header.AppendSupplier(writeCRLF)
}
if !config.HasHeader("Date") {
header.AppendFunc(serial.WriteString("Date: "))
header.AppendFunc(serial.WriteString(time.Now().Format(http.TimeFormat)))
header.AppendFunc(writeCRLF)
header.AppendSupplier(serial.WriteString("Date: "))
header.AppendSupplier(serial.WriteString(time.Now().Format(http.TimeFormat)))
header.AppendSupplier(writeCRLF)
}
header.AppendFunc(writeCRLF)
header.AppendSupplier(writeCRLF)
return &HeaderWriter{
header: header,
}

8
transport/internet/headers/http/http_test.go
View File

@ -12,9 +12,9 @@ import (
func TestReaderWriter(t *testing.T) {
assert := assert.On(t)
cache := buf.NewBuffer()
b := buf.NewLocalBuffer(256)
b.AppendFunc(serial.WriteString("abcd" + ENDING))
cache := buf.New()
b := buf.NewLocal(256)
b.AppendSupplier(serial.WriteString("abcd" + ENDING))
writer := NewHeaderWriter(b)
writer.Write(cache)
cache.Write([]byte{'e', 'f', 'g'})
@ -41,7 +41,7 @@ func TestRequestHeader(t *testing.T) {
},
}).(HttpAuthenticator)
cache := buf.NewBuffer()
cache := buf.New()
err := auth.GetClientWriter().Write(cache)
assert.Error(err).IsNil()

4
transport/internet/headers/noop/noop.go
View File

@ -12,8 +12,8 @@ type NoOpHeader struct{}
func (v NoOpHeader) Size() int {
return 0
}
func (v NoOpHeader) Write([]byte) int {
return 0
func (v NoOpHeader) Write([]byte) (int, error) {
return 0, nil
}
type NoOpHeaderFactory struct{}

4
transport/internet/headers/srtp/srtp.go
View File

@ -17,11 +17,11 @@ func (v *SRTP) Size() int {
return 4
}
func (v *SRTP) Write(b []byte) int {
func (v *SRTP) Write(b []byte) (int, error) {
v.number++
b = serial.Uint16ToBytes(v.number, b[:0])
b = serial.Uint16ToBytes(v.number, b)
return 4
return 4, nil
}
type SRTPFactory struct {

4
transport/internet/headers/srtp/srtp_test.go
View File

@ -14,8 +14,8 @@ func TestSRTPWrite(t *testing.T) {
content := []byte{'a', 'b', 'c', 'd', 'e', 'f', 'g'}
srtp := SRTP{}
payload := buf.NewLocalBuffer(2048)
payload.AppendFunc(srtp.Write)
payload := buf.NewLocal(2048)
payload.AppendSupplier(srtp.Write)
payload.Append(content)
assert.Int(payload.Len()).Equals(len(content) + srtp.Size())

4
transport/internet/headers/utp/utp.go
View File

@ -18,10 +18,10 @@ func (v *UTP) Size() int {
return 4
}
func (v *UTP) Write(b []byte) int {
func (v *UTP) Write(b []byte) (int, error) {
b = serial.Uint16ToBytes(v.connectionId, b[:0])
b = append(b, v.header, v.extension)
return 4
return 4, nil
}
type UTPFactory struct{}

4
transport/internet/headers/utp/utp_test.go
View File

@ -14,8 +14,8 @@ func TestUTPWrite(t *testing.T) {
content := []byte{'a', 'b', 'c', 'd', 'e', 'f', 'g'}
utp := UTP{}
payload := buf.NewLocalBuffer(2048)
payload.AppendFunc(utp.Write)
payload := buf.NewLocal(2048)
payload.AppendSupplier(utp.Write)
payload.Append(content)
assert.Int(payload.Len()).Equals(len(content) + utp.Size())

2
transport/internet/kcp/connection.go
View File

@ -10,7 +10,6 @@ import (
"v2ray.com/core/common/errors"
"v2ray.com/core/common/log"
"v2ray.com/core/common/predicate"
"v2ray.com/core/transport/internet"
"v2ray.com/core/transport/internet/internal"
)
@ -170,7 +169,6 @@ type SystemConnection interface {
type Connection struct {
conn SystemConnection
connRecycler internal.ConnectionRecyler
block internet.Authenticator
rd time.Time
wd time.Time // write deadline
since int64

4
transport/internet/kcp/dialer.go
View File

@ -88,12 +88,12 @@ func (o *ClientConnection) ResetSecurity(header internet.PacketHeader, security
}
func (o *ClientConnection) Run() {
payload := buf.NewSmallBuffer()
payload := buf.NewSmall()
defer payload.Release()
for {
payload.Clear()
_, err := payload.FillFrom(o.Conn)
err := payload.AppendSupplier(buf.ReadFrom(o.Conn))
if err != nil {
payload.Release()
return

2
transport/internet/kcp/io.go
View File

@ -69,7 +69,7 @@ func (v *KCPPacketWriter) Write(b []byte) (int, error) {
x := v.buffer[:]
size := 0
if v.Header != nil {
nBytes := v.Header.Write(x)
nBytes, _ := v.Header.Write(x)
size += nBytes
x = x[nBytes:]
}

4
transport/internet/kcp/output.go
View File

@ -22,7 +22,7 @@ func NewSegmentWriter(writer io.Writer, mtu uint32) *BufferedSegmentWriter {
return &BufferedSegmentWriter{
mtu: mtu,
writer: writer,
buffer: buf.NewSmallBuffer(),
buffer: buf.NewSmall(),
}
}
@ -35,7 +35,7 @@ func (v *BufferedSegmentWriter) Write(seg Segment) {
v.FlushWithoutLock()
}
v.buffer.AppendFunc(seg.Bytes())
v.buffer.AppendSupplier(seg.Bytes())
}
func (v *BufferedSegmentWriter) FlushWithoutLock() {

22
transport/internet/kcp/segment.go
View File

@ -31,7 +31,7 @@ type Segment interface {
Conversation() uint16
Command() Command
ByteSize() int
Bytes() buf.BytesWriter
Bytes() buf.Supplier
}
const (
@ -64,14 +64,14 @@ func (v *DataSegment) Command() Command {
func (v *DataSegment) SetData(b []byte) {
if v.Data == nil {
v.Data = buf.NewSmallBuffer()
v.Data = buf.NewSmall()
}
v.Data.Clear()
v.Data.Append(b)
}
func (v *DataSegment) Bytes() buf.BytesWriter {
return func(b []byte) int {
func (v *DataSegment) Bytes() buf.Supplier {
return func(b []byte) (int, error) {
b = serial.Uint16ToBytes(v.Conv, b[:0])
b = append(b, byte(CommandData), byte(v.Option))
b = serial.Uint32ToBytes(v.Timestamp, b)
@ -79,7 +79,7 @@ func (v *DataSegment) Bytes() buf.BytesWriter {
b = serial.Uint32ToBytes(v.SendingNext, b)
b = serial.Uint16ToBytes(uint16(v.Data.Len()), b)
b = append(b, v.Data.Bytes()...)
return v.ByteSize()
return v.ByteSize(), nil
}
}
@ -137,8 +137,8 @@ func (v *AckSegment) ByteSize() int {
return 2 + 1 + 1 + 4 + 4 + 4 + 1 + int(v.Count)*4
}
func (v *AckSegment) Bytes() buf.BytesWriter {
return func(b []byte) int {
func (v *AckSegment) Bytes() buf.Supplier {
return func(b []byte) (int, error) {
b = serial.Uint16ToBytes(v.Conv, b[:0])
b = append(b, byte(CommandACK), byte(v.Option))
b = serial.Uint32ToBytes(v.ReceivingWindow, b)
@ -148,7 +148,7 @@ func (v *AckSegment) Bytes() buf.BytesWriter {
for i := byte(0); i < v.Count; i++ {
b = serial.Uint32ToBytes(v.NumberList[i], b)
}
return v.ByteSize()
return v.ByteSize(), nil
}
}
@ -181,14 +181,14 @@ func (v *CmdOnlySegment) ByteSize() int {
return 2 + 1 + 1 + 4 + 4 + 4
}
func (v *CmdOnlySegment) Bytes() buf.BytesWriter {
return func(b []byte) int {
func (v *CmdOnlySegment) Bytes() buf.Supplier {
return func(b []byte) (int, error) {
b = serial.Uint16ToBytes(v.Conv, b[:0])
b = append(b, byte(v.Cmd), byte(v.Option))
b = serial.Uint32ToBytes(v.SendingNext, b)
b = serial.Uint32ToBytes(v.ReceivinNext, b)
b = serial.Uint32ToBytes(v.PeerRTO, b)
return v.ByteSize()
return v.ByteSize(), nil
}
}

2
transport/internet/kcp/segment_test.go
View File

@ -19,7 +19,7 @@ func TestBadSegment(t *testing.T) {
func TestDataSegment(t *testing.T) {
assert := assert.On(t)
b := buf.NewLocalBuffer(512)
b := buf.NewLocal(512)
b.Append([]byte{'a', 'b', 'c', 'd'})
seg := &DataSegment{
Conv: 1,

8
transport/internet/udp/hub.go
View File

@ -135,16 +135,14 @@ func (v *UDPHub) start() {
oobBytes := make([]byte, 256)
for v.Running() {
buffer := buf.NewSmallBuffer()
buffer := buf.NewSmall()
var noob int
var addr *net.UDPAddr
var err error
buffer.AppendFunc(func(b []byte) int {
err := buffer.AppendSupplier(func(b []byte) (int, error) {
n, nb, _, a, e := ReadUDPMsg(v.conn, b, oobBytes)
noob = nb
addr = a
err = e
return n
return n, e
})
if err != nil {