提交 v1.3.0 beta

server/common/taskrunner/task_runner.go

@@ -0,0 +1,30 @@
+package taskrunner
+
+import "sync"
+
+type Runner struct {
+	wg     sync.WaitGroup
+	errors []error
+	mux    sync.Mutex
+}
+
+func (r *Runner) Add(f func() error) {
+	r.wg.Add(1)
+	go func() {
+		defer r.wg.Done()
+		if err := f(); err != nil {
+			r.addError(err)
+		}
+	}()
+}
+
+func (r *Runner) addError(err error) {
+	r.mux.Lock()
+	defer r.mux.Unlock()
+	r.errors = append(r.errors, err)
+}
+
+func (r *Runner) Wait() []error {
+	r.wg.Wait()
+	return r.errors
+}