func startup(cn *pool.Conn, user, password, database string) error {
writeStartupMsg(cn.Wr, user, database)
if err := cn.Wr.Flush(); err != nil {
return err
}
for {
c, msgLen, err := readMessageType(cn)
if err != nil {
return err
}
switch c {
case backendKeyDataMsg:
processId, err := readInt32(cn)
if err != nil {
return err
}
secretKey, err := readInt32(cn)
if err != nil {
return err
}
cn.ProcessId = processId
cn.SecretKey = secretKey
case parameterStatusMsg:
if err := logParameterStatus(cn, msgLen); err != nil {
return err
}
case authenticationOKMsg:
if err := authenticate(cn, user, password); err != nil {
return err
}
case readyForQueryMsg:
_, err := cn.ReadN(msgLen)
if err != nil {
return err
}
return nil
case errorResponseMsg:
e, err := readError(cn)
if err != nil {
return err
}
return e
default:
return fmt.Errorf("pg: unknown startup message response: %q", c)
}
}
}
