github.com/whtcorpsinc/milevadb-prod@v0.0.0-20211104133533-f57f4be3b597/allegrosql/server/buffered_read_conn.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package server
    15  
    16  import (
    17  	"bufio"
    18  	"net"
    19  )
    20  
    21  const defaultReaderSize = 16 * 1024
    22  
    23  // bufferedReadConn is a net.Conn compatible structure that reads from bufio.Reader.
    24  type bufferedReadConn struct {
    25  	net.Conn
    26  	rb *bufio.Reader
    27  }
    28  
    29  func (conn bufferedReadConn) Read(b []byte) (n int, err error) {
    30  	return conn.rb.Read(b)
    31  }
    32  
    33  func newBufferedReadConn(conn net.Conn) *bufferedReadConn {
    34  	return &bufferedReadConn{
    35  		Conn: conn,
    36  		rb:   bufio.NewReaderSize(conn, defaultReaderSize),
    37  	}
    38  }