New JobQueue worker

backend/internal/jobqueue/main.go

@@ -0,0 +1,46 @@
+package jobqueue
+
+import (
+	"context"
+	"errors"
+)
+
+var (
+	ctx    context.Context
+	cancel context.CancelFunc
+	worker *Worker
+)
+
+// Start ...
+func Start() {
+	ctx, cancel = context.WithCancel(context.Background())
+	q := &Queue{
+		jobs:   make(chan Job),
+		ctx:    ctx,
+		cancel: cancel,
+	}
+
+	// Defines a queue worker, which will execute our queue.
+	worker = newWorker(q)
+
+	// Execute jobs in queue.
+	go worker.doWork()
+}
+
+// AddJob adds a job to the queue for processing
+func AddJob(j Job) error {
+	if worker == nil {
+		return errors.New("Unable to add job, jobqueue has not been started")
+	}
+	worker.Queue.AddJob(j)
+	return nil
+}
+
+// Shutdown ...
+func Shutdown() error {
+	if cancel == nil {
+		return errors.New("Unable to shutdown, jobqueue has not been started")
+	}
+	cancel()
+	return nil
+}