refactor: move more background jobs to using job queue

config/jobqueue.go

@@ -2,25 +2,33 @@ package config
 
 import (
 	"fmt"
+	"github.com/emvi/logbuch"
 	"github.com/muety/artifex"
+	"math"
+	"runtime"
 )
 
 var jobqueues map[string]*artifex.Dispatcher
 
 const (
-	QueueDefault    = ""
-	QueueProcessing = "processing"
-	QueueMails      = "mails"
+	QueueDefault    = "wakapi.default"
+	QueueProcessing = "wakapi.processing"
+	QueueReports    = "wakapi.reports"
 )
 
 func init() {
 	jobqueues = make(map[string]*artifex.Dispatcher)
+
+	InitQueue(QueueDefault, 1)
+	InitQueue(QueueProcessing, int(math.Ceil(float64(runtime.NumCPU())/2.0)))
+	InitQueue(QueueReports, 1)
 }
 
 func InitQueue(name string, workers int) error {
 	if _, ok := jobqueues[name]; ok {
 		return fmt.Errorf("queue '%s' already existing", name)
 	}
+	logbuch.Info("creating job queue '%s' (%d workers)", name, workers)
 	jobqueues[name] = artifex.NewDispatcher(workers, 4096)
 	jobqueues[name].Start()
 	return nil