56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package pipes
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import (
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"net"
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)
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// NetPipe wraps net.Pipe in a signature returning an error
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func NetPipe() (net.Conn, net.Conn, error) {
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p1, p2 := net.Pipe()
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return p1, p2, nil
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}
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// TCPPipe creates an in process full duplex pipe based on a localhost TCP socket
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func TCPPipe() (net.Conn, net.Conn, error) {
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l, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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return nil, nil, err
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}
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defer l.Close()
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var aconn net.Conn
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aerr := make(chan error, 1)
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go func() {
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var err error
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aconn, err = l.Accept()
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aerr <- err
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}()
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dconn, err := net.Dial("tcp", l.Addr().String())
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if err != nil {
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<-aerr
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return nil, nil, err
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}
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if err := <-aerr; err != nil {
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dconn.Close()
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return nil, nil, err
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}
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return aconn, dconn, nil
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}
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