2 Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, version 3 of the License.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 type SingleConn struct {
30 func (conn *SingleConn) Read(b []byte) (int, error) { return conn.conn.Read(b) }
32 func (conn *SingleConn) Write(b []byte) (int, error) { return conn.conn.Write(b) }
34 func (conn *SingleConn) Close() error {
36 return conn.conn.Close()
39 func (conn *SingleConn) LocalAddr() net.Addr { return conn.conn.LocalAddr() }
41 func (conn *SingleConn) RemoteAddr() net.Addr { return conn.conn.RemoteAddr() }
43 func (conn *SingleConn) SetDeadline(t time.Time) error { return conn.conn.SetDeadline(t) }
45 func (conn *SingleConn) SetReadDeadline(t time.Time) error { return conn.conn.SetReadDeadline(t) }
47 func (conn *SingleConn) SetWriteDeadline(t time.Time) error { return conn.conn.SetWriteDeadline(t) }
49 type AlreadyAccepted struct{}
51 func (err AlreadyAccepted) Error() string { return "already accepted" }
53 type SingleListener struct {
59 func (ln *SingleListener) Accept() (net.Conn, error) {
62 return nil, AlreadyAccepted{}
65 return &SingleConn{ln.conn, ln}, nil
68 func (ln *SingleListener) Close() error { return nil }
70 func (ln *SingleListener) Addr() net.Addr { return ln.conn.LocalAddr() }