syncthing/lib/beacon/beacon.go
2017-02-09 08:04:16 +01:00

45 lines
831 B
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package beacon
import (
"net"
stdsync "sync"
"github.com/thejerf/suture"
)
type recv struct {
data []byte
src net.Addr
}
type Interface interface {
suture.Service
Send(data []byte)
Recv() ([]byte, net.Addr)
Error() error
}
type errorHolder struct {
err error
mut stdsync.Mutex // uses stdlib sync as I want this to be trivially embeddable, and there is no risk of blocking
}
func (e *errorHolder) setError(err error) {
e.mut.Lock()
e.err = err
e.mut.Unlock()
}
func (e *errorHolder) Error() error {
e.mut.Lock()
err := e.err
e.mut.Unlock()
return err
}