53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 3 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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// more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program. If not, see <http://www.gnu.org/licenses/>.
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package beacon
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import "net"
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type recv struct {
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data []byte
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src net.Addr
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}
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type Interface interface {
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Send(data []byte)
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Recv() ([]byte, net.Addr)
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}
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func genericReader(conn *net.UDPConn, outbox chan<- recv) {
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bs := make([]byte, 65536)
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for {
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n, addr, err := conn.ReadFrom(bs)
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if err != nil {
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l.Warnln("multicast read:", err)
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return
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}
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if debug {
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l.Debugf("recv %d bytes from %s", n, addr)
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}
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c := make([]byte, n)
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copy(c, bs)
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select {
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case outbox <- recv{c, addr}:
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default:
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if debug {
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l.Debugln("dropping message")
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}
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}
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}
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}
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