func (s *Server) newClientConn(co net.Conn) *ClientConn {
c := new(ClientConn)
switch co.(type) {
case *net.TCPConn:
tcpConn := co.(*net.TCPConn)
//SetNoDelay controls whether the operating system should delay packet transmission
// in hopes of sending fewer packets (Nagle's algorithm).
// The default is true (no delay),
// meaning that data is sent as soon as possible after a Write.
//I set this option false.
tcpConn.SetNoDelay(false)
c.c = tcpConn
default:
c.c = co
}
c.pkg = mysql.NewPacketIO(c.c)
c.proxy = s
c.pkg.Sequence = 0
c.connectionId = atomic.AddUint32(&baseConnId, 1)
c.status = mysql.SERVER_STATUS_AUTOCOMMIT
c.salt = mysql.RandomBuf(20)
c.closed = false
c.collation = mysql.DEFAULT_COLLATION_ID
c.charset = mysql.DEFAULT_CHARSET
return c
}
func (c *Conn) ReConnect() error {
if c.conn != nil {
c.conn.Close()
}
n := "tcp"
if strings.Contains(c.addr, "/") {
n = "unix"
}
var err error
var netConn net.Conn
if c.client.proxy.cfg.TlsClient {
netConn, err = tls.Dial(n, c.addr, c.client.proxy.cfg.TlsClientConf)
} else {
netConn, err = net.Dial(n, c.addr)
}
if err != nil {
return err
}
switch netConn.(type) {
case *net.TCPConn:
tcpConn := netConn.(*net.TCPConn)
//SetNoDelay controls whether the operating system should delay packet transmission
// in hopes of sending fewer packets (Nagle's algorithm).
// The default is true (no delay),
// meaning that data is sent as soon as possible after a Write.
//I set this option false.
tcpConn.SetNoDelay(false)
c.conn = tcpConn
default:
c.conn = netConn
}
c.pkg = mysql.NewPacketIO(c.conn)
if err := c.readInitialHandshake(); err != nil {
c.conn.Close()
return err
}
if err := c.writeAuthHandshake(); err != nil {
c.conn.Close()
return err
}
if _, err := c.readOK(); err != nil {
c.conn.Close()
return err
}
//we must always use autocommit
if !c.IsAutoCommit() {
if _, err := c.exec("set autocommit = 1"); err != nil {
c.conn.Close()
return err
}
}
c.lastPing = time.Now().Unix()
return nil
}