Version 3 starter

backend/internal/state/state.go

@@ -0,0 +1,31 @@
+package state
+
+import (
+	"sync"
+)
+
+// AppState holds pointers to channels and waitGroups
+// shared by all goroutines of the application
+type AppState struct {
+	waitGroup sync.WaitGroup
+	termSig   chan bool
+}
+
+// NewState ...
+func NewState() *AppState {
+	state := &AppState{
+		// buffered channel
+		termSig: make(chan bool, 1),
+	}
+	return state
+}
+
+// GetWaitGroup ...
+func (state *AppState) GetWaitGroup() *sync.WaitGroup {
+	return &state.waitGroup
+}
+
+// GetTermSig ...
+func (state *AppState) GetTermSig() chan bool {
+	return state.termSig
+}