gosora/tickloop.go

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package main
import (
"database/sql"
"log"
"strconv"
"time"
c "github.com/Azareal/Gosora/common"
"github.com/pkg/errors"
)
var TickLoop *c.TickLoop
func runHook(name string) error {
if e := c.RunTaskHook(name); e != nil {
return errors.Wrap(e, "Failed at task '"+name+"'")
}
return nil
}
func deferredDailies() error {
lastDailyStr, e := c.Meta.Get("lastDaily")
// TODO: Report this error back correctly...
if e != nil && e != sql.ErrNoRows {
return e
}
lastDaily, _ := strconv.ParseInt(lastDailyStr, 10, 64)
low := time.Now().Unix() - (60 * 60 * 24)
if lastDaily < low {
if e := c.Dailies(); e != nil {
return e
}
}
return nil
}
func tickLoop(thumbChan chan bool) error {
tl := c.NewTickLoop()
TickLoop = tl
if e := deferredDailies(); e != nil {
return e
}
if e := c.StartupTasks(); e != nil {
return e
}
tick := func(name string, tasks []func() error) error {
if c.StartTick() {
return nil
}
if e := runHook("before_" + name + "_tick"); e != nil {
return e
}
if e := c.RunTasks(tasks); e != nil {
return e
}
return runHook("after_" + name + "_tick")
}
tl.HalfSecf = func() error {
return tick("half_second", c.ScheduledHalfSecondTasks)
}
// TODO: Automatically lock topics, if they're really old, and the associated setting is enabled.
// TODO: Publish scheduled posts.
tl.FifteenMinf = func() error {
return tick("fifteen_minute", c.ScheduledFifteenMinuteTasks)
}
// TODO: Handle the instance going down a lot better
// TODO: Handle the daily clean-up.
tl.Dayf = func() error {
if c.StartTick() {
return nil
}
return c.Dailies()
}
tl.Secf = func() (e error) {
if c.StartTick() {
return nil
}
if e = runHook("before_second_tick"); e != nil {
return e
}
go func() { thumbChan <- true }()
if e = c.RunTasks(c.ScheduledSecondTasks); e != nil {
return e
}
// TODO: Stop hard-coding this
if e = c.HandleExpiredScheduledGroups(); e != nil {
return e
}
// TODO: Handle delayed moderation tasks
// Sync with the database, if there are any changes
if e = c.HandleServerSync(); e != nil {
return e
}
// TODO: Manage the TopicStore, UserStore, and ForumStore
// TODO: Alert the admin, if CPU usage, RAM usage, or the number of posts in the past second are too high
// TODO: Clean-up alerts with no unread matches which are over two weeks old. Move this to a 24 hour task?
// TODO: Rescan the static files for changes
return runHook("after_second_tick")
}
tl.Hourf = func() error {
if c.StartTick() {
return nil
}
if e := runHook("before_hour_tick"); e != nil {
return e
}
jsToken, e := c.GenerateSafeString(80)
if e != nil {
return e
}
c.JSTokenBox.Store(jsToken)
c.OldSessionSigningKeyBox.Store(c.SessionSigningKeyBox.Load().(string)) // TODO: We probably don't need this type conversion
sessionSigningKey, e := c.GenerateSafeString(80)
if e != nil {
return e
}
c.SessionSigningKeyBox.Store(sessionSigningKey)
if e = c.RunTasks(c.ScheduledHourTasks); e != nil {
return e
}
return runHook("after_hour_tick")
}
go tl.Loop()
return nil
}
func sched() error {
ws := errors.WithStack
schedStr, err := c.Meta.Get("sched")
// TODO: Report this error back correctly...
if err != nil && err != sql.ErrNoRows {
return ws(err)
}
if schedStr == "recalc" {
log.Print("Cleaning up orphaned data.")
count, err := c.Recalc.Replies()
if err != nil {
return ws(err)
}
log.Printf("Deleted %d orphaned replies.", count)
count, err = c.Recalc.Forums()
if err != nil {
return ws(err)
}
log.Printf("Recalculated %d forum topic counts.", count)
count, err = c.Recalc.Subscriptions()
if err != nil {
return ws(err)
}
log.Printf("Deleted %d orphaned subscriptions.", count)
count, err = c.Recalc.ActivityStream()
if err != nil {
return ws(err)
}
log.Printf("Deleted %d orphaned activity stream items.", count)
err = c.Recalc.Users()
if err != nil {
return ws(err)
}
log.Print("Recalculated user post stats.")
count, err = c.Recalc.Attachments()
if err != nil {
return ws(err)
}
log.Printf("Deleted %d orphaned attachments.", count)
}
return nil
}