// Connect to a MySQL server, addr can be ip:port, or a unix socket domain like /var/sock.
func Connect(addr string, user string, password string, dbName string) (*Conn, error) {
proto := getNetProto(addr)
c := new(Conn)
fmt.Printf("mysql %s %s:%s %s\n", addr, user, password, dbName)
var err error
conn, err := net.DialTimeout(proto, addr, 10*time.Second)
if err != nil {
return nil, errors.Trace(err)
}
c.Conn = packet.NewConn(conn)
c.user = user
c.password = password
c.db = dbName
//use default charset here, utf-8
c.charset = DEFAULT_CHARSET
if err = c.handshake(); err != nil {
return nil, errors.Trace(err)
}
return c, nil
}
func NewConn(conn net.Conn, user string, password string, h Handler) (*Conn, error) {
c := new(Conn)
c.h = h
c.user = user
c.Conn = packet.NewConn(conn)
c.connectionID = atomic.AddUint32(&baseConnID, 1)
c.stmts = make(map[uint32]*Stmt)
c.salt, _ = RandomBuf(20)
c.closed.Set(false)
if err := c.handshake(password); err != nil {
c.Close()
return nil, err
}
return c, nil
}