/
transport.go
61 lines (51 loc) · 1.07 KB
/
transport.go
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package rpc
import (
"encoding/binary"
"io"
"net"
)
// @Author Chen Zikang
// @Email zikang.chen@shopee.com
// @Since 2022-02-21
// Transport struct
type Transport struct {
conn net.Conn
}
// NewTransport creates a transport
func NewTransport(conn net.Conn) *Transport {
return &Transport{conn}
}
// Send data
func (t *Transport) Send(req Data) error {
// Encode request into bytes
b, err := Encode(req)
if err != nil {
return err
}
buf := make([]byte, 4+len(b))
// set header field
binary.BigEndian.PutUint32(buf[:4], uint32(len(b)))
// set content field
copy(buf[4:], b)
_, err = t.conn.Write(buf)
return err
}
// Receive data
func (t *Transport) Receive() (Data, error) {
header := make([]byte, 4)
_, err := io.ReadFull(t.conn, header)
if err != nil {
return Data{}, err
}
// read header field
dataLen := binary.BigEndian.Uint32(header)
// read content field
content := make([]byte, dataLen)
_, err = io.ReadFull(t.conn, content)
if err != nil {
return Data{}, err
}
// Decode response from bytes
rsp, err := Decode(content)
return rsp, err
}