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51 lines
1.2 KiB
51 lines
1.2 KiB
// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package discovery
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import (
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"context"
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"net"
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"github.com/bboozzoo/mconnect/logger"
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)
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type Listener struct {
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conn *net.UDPConn
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}
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func NewListener() (*Listener, error) {
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addr := net.UDPAddr{
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Port: 1714,
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}
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conn, err := net.ListenUDP("udp", &addr)
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if err != nil {
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return nil, err
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}
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listener := &Listener{
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conn: conn,
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}
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return listener, nil
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}
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func (l *Listener) Receive(ctx context.Context) {
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log := logger.FromContext(ctx)
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buf := make([]byte, 4096)
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count, addr, err := l.conn.ReadFromUDP(buf)
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if err != nil {
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log.Printf("listen failed: %v", err)
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}
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log.Printf("got %v bytes from %v", count, addr)
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log.Printf("data:\n%s", string(buf))
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}
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