syncthing/internal/model/scanner.go
2014-11-17 12:54:42 +01:00

78 lines
1.7 KiB
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.
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 {
s.model.cfg.InvalidateFolder(s.folder, err.Error())
return
}
s.model.setState(s.folder, FolderIdle)
if !initialScanCompleted {
l.Infoln("Completed initial scan (ro) of folder", s.folder)
initialScanCompleted = true
}
if s.intv == 0 {
return
}
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)
}