syncthing/internal/model/scanner.go

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2014-09-30 17:56:02 +02:00
// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
// All rights reserved. Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package model
import (
"fmt"
"time"
)
type Scanner struct {
folder string
intv time.Duration
model *Model
stop chan struct{}
}
func (s *Scanner) Serve() {
if debug {
l.Debugln(s, "starting")
defer l.Debugln(s, "exiting")
}
timer := time.NewTimer(time.Millisecond)
defer timer.Stop()
initialScanCompleted := false
for {
select {
case <-s.stop:
return
case <-timer.C:
if debug {
l.Debugln(s, "rescan")
}
s.model.setState(s.folder, FolderScanning)
if err := s.model.ScanFolder(s.folder); err != nil {
invalidateFolder(s.model.cfg, s.folder, err)
return
}
s.model.setState(s.folder, FolderIdle)
if !initialScanCompleted {
l.Infoln("Completed initial scan (ro) of folder", s.folder)
initialScanCompleted = true
}
timer.Reset(s.intv)
}
}
}
func (s *Scanner) Stop() {
close(s.stop)
}
func (s *Scanner) String() string {
return fmt.Sprintf("scanner/%s@%p", s.folder, s)
}