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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