Update events handler, add mutex to push

1 files changed, 38 insertions, 0 deletions

diff --git a/pkg/events/events.go b/pkg/events/events.go
new file mode 100755
index 00000000..92dc103a
--- /dev/null
+++ b/pkg/events/events.go
@@ -0,0 +1,38 @@
+package events
+
+import (
+	"sync"
+
+	"github.com/spiral/roadrunner/v2/interfaces/events"
+)
+
+// EventHandler helps to broadcast events to multiple listeners.
+type EventHandler struct {
+	listeners []events.EventListener
+	sync.RWMutex
+}
+
+func NewEventsHandler() events.Handler {
+	return &EventHandler{listeners: make([]events.EventListener, 0, 2)}
+}
+
+// NumListeners returns number of event listeners.
+func (eb *EventHandler) NumListeners() int {
+	return len(eb.listeners)
+}
+
+// AddListener registers new event listener.
+func (eb *EventHandler) AddListener(listener events.EventListener) {
+	eb.Lock()
+	defer eb.Unlock()
+	eb.listeners = append(eb.listeners, listener)
+}
+
+// Push broadcast events across all event listeners.
+func (eb *EventHandler) Push(e interface{}) {
+	eb.Lock()
+	defer eb.Unlock()
+	for k := range eb.listeners {
+		eb.listeners[k](e)
+	}
+}