Xray-core/common/singbridge/reader.go

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2023-04-23 11:31:41 +00:00
package singbridge
import (
"time"
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/bufio"
N "github.com/sagernet/sing/common/network"
"github.com/xtls/xray-core/common/buf"
"github.com/xtls/xray-core/common/net"
)
var (
_ buf.Reader = (*Conn)(nil)
_ buf.TimeoutReader = (*Conn)(nil)
_ buf.Writer = (*Conn)(nil)
)
type Conn struct {
net.Conn
writer N.VectorisedWriter
}
func NewConn(conn net.Conn) *Conn {
writer, _ := bufio.CreateVectorisedWriter(conn)
return &Conn{
Conn: conn,
writer: writer,
}
}
func (c *Conn) ReadMultiBuffer() (buf.MultiBuffer, error) {
buffer, err := buf.ReadBuffer(c.Conn)
if err != nil {
return nil, err
}
return buf.MultiBuffer{buffer}, nil
}
func (c *Conn) ReadMultiBufferTimeout(duration time.Duration) (buf.MultiBuffer, error) {
err := c.SetReadDeadline(time.Now().Add(duration))
if err != nil {
return nil, err
}
defer c.SetReadDeadline(time.Time{})
return c.ReadMultiBuffer()
}
func (c *Conn) WriteMultiBuffer(bufferList buf.MultiBuffer) error {
defer buf.ReleaseMulti(bufferList)
if c.writer != nil {
bytesList := make([][]byte, len(bufferList))
for i, buffer := range bufferList {
bytesList[i] = buffer.Bytes()
}
return common.Error(bufio.WriteVectorised(c.writer, bytesList))
}
// Since this conn is only used by tun, we don't force buffer writes to merge.
for _, buffer := range bufferList {
_, err := c.Conn.Write(buffer.Bytes())
if err != nil {
return err
}
}
return nil
}