Initial commit

util/bufpool.go

@@ -0,0 +1,9 @@
+package util
+
+import "sync"
+
+var BufPool = sync.Pool{
+	New: func() any {
+		return make([]byte, 4096)
+	},
+}

util/mapkeys.go

@@ -0,0 +1,11 @@
+package util
+
+import "relay/device"
+
+func Keys(m map[string]*device.Device) []string {
+	out := make([]string, 0, len(m))
+	for k := range m {
+		out = append(out, k)
+	}
+	return out
+}