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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
2.0 KiB
Go
90 lines
2.0 KiB
Go
// Copyright (C) 2015 The Syncthing Authors.
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 3 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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// more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program. If not, see <http://www.gnu.org/licenses/>.
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package model
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import (
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"sync"
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"time"
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"github.com/syncthing/syncthing/internal/events"
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)
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type folderState int
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const (
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FolderIdle folderState = iota
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FolderScanning
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FolderSyncing
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FolderCleaning
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)
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func (s folderState) String() string {
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switch s {
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case FolderIdle:
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return "idle"
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case FolderScanning:
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return "scanning"
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case FolderCleaning:
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return "cleaning"
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case FolderSyncing:
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return "syncing"
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default:
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return "unknown"
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}
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}
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type stateTracker struct {
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folder string
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mut sync.Mutex
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current folderState
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changed time.Time
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}
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func (s *stateTracker) setState(newState folderState) {
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s.mut.Lock()
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if newState != s.current {
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/* This should hold later...
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if s.current != FolderIdle && (newState == FolderScanning || newState == FolderSyncing) {
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panic("illegal state transition " + s.current.String() + " -> " + newState.String())
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}
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*/
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eventData := map[string]interface{}{
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"folder": s.folder,
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"to": newState.String(),
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"from": s.current.String(),
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}
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if !s.changed.IsZero() {
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eventData["duration"] = time.Since(s.changed).Seconds()
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}
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s.current = newState
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s.changed = time.Now()
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events.Default.Log(events.StateChanged, eventData)
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}
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s.mut.Unlock()
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}
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func (s *stateTracker) getState() (current folderState, changed time.Time) {
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s.mut.Lock()
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current, changed = s.current, s.changed
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s.mut.Unlock()
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return
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}
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