gosora/tickloop.go

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package main
import (
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"bytes"
"database/sql"
"log"
"net/http/httptest"
"strconv"
"time"
c "github.com/Azareal/Gosora/common"
"github.com/Azareal/Gosora/routes"
"github.com/Azareal/Gosora/uutils"
"github.com/pkg/errors"
)
var TickLoop *c.TickLoop
func runHook(name string) error {
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if e := c.RunTaskHook(name); e != nil {
return errors.Wrap(e, "Failed at task '"+name+"'")
}
return nil
}
func deferredDailies() error {
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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
}
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func handleLogLongTick(name string, cn int64, secs int) {
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if !c.Dev.LogLongTick {
return
}
dur := time.Duration(uutils.Nanotime() - cn)
if dur.Seconds() > float64(secs) {
log.Print("tick " + name + " completed in " + dur.String())
}
}
func tickLoop(thumbChan chan bool) error {
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tl := c.NewTickLoop()
TickLoop = tl
if e := deferredDailies(); e != nil {
return e
}
if e := c.StartupTasks(); e != nil {
return e
}
startTick := func(ch chan bool) (ret bool) {
if c.Dev.HourDBTimeout {
go func() {
defer c.EatPanics()
ch <- c.StartTick()
}()
return <-ch
}
return c.StartTick()
}
tick := func(name string, tasks c.TaskSet, secs int) error {
tw := c.NewTickWatch()
tw.Name = name
tw.Set(&tw.Start, uutils.Nanotime())
tw.Run()
defer tw.Stop()
ch := make(chan bool)
tw.OutEndChan = ch
if startTick(ch) {
return nil
}
tw.Set(&tw.DBCheck, uutils.Nanotime())
if e := runHook("before_" + name + "_tick"); e != nil {
return e
}
cn := uutils.Nanotime()
tw.Set(&tw.StartHook, cn)
if e := tasks.Run(); e != nil {
return e
}
tw.Set(&tw.Tasks, uutils.Nanotime())
handleLogLongTick(name, cn, secs)
if e := runHook("after_" + name + "_tick"); e != nil {
return e
}
tw.Set(&tw.EndHook, uutils.Nanotime())
//close(tw.OutEndChan)
return nil
}
tl.HalfSecf = func() error {
return tick("half_second", c.Tasks.HalfSec, 2)
}
// 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.Tasks.FifteenMin, 5)
}
// TODO: Handle the instance going down a lot better
// TODO: Handle the daily clean-up.
tl.Dayf = func() error {
if c.StartTick() {
return nil
}
cn := uutils.Nanotime()
if e := c.Dailies(); e != nil {
return e
}
handleLogLongTick("day", cn, 5)
return nil
}
tl.Secf = func() (e error) {
if c.StartTick() {
return nil
}
if e = runHook("before_second_tick"); e != nil {
return e
}
cn := uutils.Nanotime()
go func() {
defer c.EatPanics()
thumbChan <- true
}()
if e = c.Tasks.Sec.Run(); 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
}
handleLogLongTick("second", cn, 3)
// 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
}
cn := uutils.Nanotime()
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.Tasks.Hour.Run(); e != nil {
return e
}
if e = PingLastTopicTick(); e != nil {
return e
}
handleLogLongTick("hour", cn, 5)
return runHook("after_hour_tick")
}
c.CTickLoop = tl
return nil
}
func sched() error {
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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
}
var pingLastTopicCount = 1
// TODO: Move somewhere else
func PingLastTopicTick() error {
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g, e := c.Groups.Get(c.GuestUser.Group)
if e != nil {
return e
}
tList, _, _, e := c.TopicList.GetListByGroup(g, 1, 0, nil)
if e != nil {
return e
}
if len(tList) == 0 {
return nil
}
w := httptest.NewRecorder()
sid := strconv.Itoa(tList[0].ID)
req := httptest.NewRequest("get", "/topic/"+sid, bytes.NewReader(nil))
cn := uutils.Nanotime()
// Deal with the session stuff, etc.
ucpy, ok := c.PreRoute(w, req)
if !ok {
return errors.New("preroute failed")
}
head, rerr := c.UserCheck(w, req, &ucpy)
if rerr != nil {
return errors.New(rerr.Error())
}
rerr = routes.ViewTopic(w, req, &ucpy, head, sid)
if rerr != nil {
return errors.New(rerr.Error())
}
/*if w.Code != 200 {
return errors.New("topic code not 200")
}*/
dur := time.Duration(uutils.Nanotime() - cn)
if dur.Seconds() > 5 {
c.Log("topic " + sid + " completed in " + dur.String())
} else if c.Dev.Log4thLongRoute {
pingLastTopicCount++
if pingLastTopicCount == 4 {
c.Log("topic " + sid + " completed in " + dur.String())
}
if pingLastTopicCount >= 4 {
pingLastTopicCount = 1
}
}
return nil
}