bdbca75dfa
Move state tracking into the puller/scanner objects. This is a first step towards resolving #1391. Rename Puller and Scanner to roFolder and rwFolder as they have more duties than just pulling and scanning, and don't need to be exported.
90 lines
1.8 KiB
Go
90 lines
1.8 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package model
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import (
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"fmt"
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"math/rand"
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"time"
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)
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type roFolder struct {
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stateTracker
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folder string
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intv time.Duration
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model *Model
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stop chan struct{}
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}
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func newROFolder(model *Model, folder string, interval time.Duration) *roFolder {
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return &roFolder{
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stateTracker: stateTracker{folder: folder},
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folder: folder,
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intv: interval,
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model: model,
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stop: make(chan struct{}),
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}
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}
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func (s *roFolder) Serve() {
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if debug {
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l.Debugln(s, "starting")
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defer l.Debugln(s, "exiting")
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}
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timer := time.NewTimer(time.Millisecond)
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defer timer.Stop()
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initialScanCompleted := false
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for {
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select {
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case <-s.stop:
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return
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case <-timer.C:
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if debug {
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l.Debugln(s, "rescan")
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}
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s.setState(FolderScanning)
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if err := s.model.ScanFolder(s.folder); err != nil {
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s.model.cfg.InvalidateFolder(s.folder, err.Error())
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return
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}
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s.setState(FolderIdle)
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if !initialScanCompleted {
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l.Infoln("Completed initial scan (ro) of folder", s.folder)
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initialScanCompleted = true
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}
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if s.intv == 0 {
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return
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}
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// Sleep a random time between 3/4 and 5/4 of the configured interval.
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sleepNanos := (s.intv.Nanoseconds()*3 + rand.Int63n(2*s.intv.Nanoseconds())) / 4
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timer.Reset(time.Duration(sleepNanos) * time.Nanosecond)
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}
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}
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}
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func (s *roFolder) Stop() {
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close(s.stop)
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}
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func (s *roFolder) String() string {
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return fmt.Sprintf("roFolder/%s@%p", s.folder, s)
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}
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func (s *roFolder) BringToFront(string) {}
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func (s *roFolder) Jobs() ([]string, []string) {
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return nil, nil
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}
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