12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182 |
- // Copyright 2020 The Gitea Authors. All rights reserved.
- // Use of this source code is governed by a MIT-style
- // license that can be found in the LICENSE file.
-
- package eventsource
-
- import (
- "context"
- "time"
-
- "code.gitea.io/gitea/models"
- "code.gitea.io/gitea/modules/graceful"
- "code.gitea.io/gitea/modules/log"
- "code.gitea.io/gitea/modules/setting"
- "code.gitea.io/gitea/modules/timeutil"
- )
-
- // Init starts this eventsource
- func (m *Manager) Init() {
- if setting.UI.Notification.EventSourceUpdateTime <= 0 {
- return
- }
- go graceful.GetManager().RunWithShutdownContext(m.Run)
- }
-
- // Run runs the manager within a provided context
- func (m *Manager) Run(ctx context.Context) {
- then := timeutil.TimeStampNow().Add(-2)
- timer := time.NewTicker(setting.UI.Notification.EventSourceUpdateTime)
- loop:
- for {
- select {
- case <-ctx.Done():
- timer.Stop()
- break loop
- case <-timer.C:
- m.mutex.Lock()
- connectionCount := len(m.messengers)
- if connectionCount == 0 {
- log.Trace("Event source has no listeners")
- // empty the connection channel
- select {
- case <-m.connection:
- default:
- }
- }
- m.mutex.Unlock()
- if connectionCount == 0 {
- // No listeners so the source can be paused
- log.Trace("Pausing the eventsource")
- select {
- case <-ctx.Done():
- break loop
- case <-m.connection:
- log.Trace("Connection detected - restarting the eventsource")
- // OK we're back so lets reset the timer and start again
- // We won't change the "then" time because there could be concurrency issues
- select {
- case <-timer.C:
- default:
- }
- continue
- }
- }
-
- now := timeutil.TimeStampNow().Add(-2)
-
- uidCounts, err := models.GetUIDsAndNotificationCounts(then, now)
- if err != nil {
- log.Error("Unable to get UIDcounts: %v", err)
- }
- for _, uidCount := range uidCounts {
- m.SendMessage(uidCount.UserID, &Event{
- Name: "notification-count",
- Data: uidCount,
- })
- }
- then = now
- }
- }
- m.UnregisterAll()
- }
|