1 files changed, 31 insertions, 0 deletions
diff --git a/devtools/shared/specs/eventlooplag.js b/devtools/shared/specs/eventlooplag.js
new file mode 100644
index 000000000..1498d5f63
--- /dev/null
+++ b/devtools/shared/specs/eventlooplag.js
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const { Arg, RetVal, generateActorSpec } = require("devtools/shared/protocol");
+
+const eventLoopLagSpec = generateActorSpec({
+  typeName: "eventLoopLag",
+
+  events: {
+    "event-loop-lag": {
+      type: "event-loop-lag",
+      // duration of the lag in milliseconds.
+      time: Arg(0, "number")
+    }
+  },
+
+  methods: {
+    start: {
+      request: {},
+      response: {success: RetVal("number")}
+    },
+    stop: {
+      request: {},
+      response: {}
+    }
+  }
+});
+
+exports.eventLoopLagSpec = eventLoopLagSpec;