From 51f9331ecb50afeafd0fa2ca8336e75aa374465e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Fri, 5 Oct 2018 19:21:15 +0200
Subject: Add deno.metrics()

---
 js/metrics.ts | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 js/metrics.ts

(limited to 'js/metrics.ts')

diff --git a/js/metrics.ts b/js/metrics.ts
new file mode 100644
index 000000000..d76b781db
--- /dev/null
+++ b/js/metrics.ts
@@ -0,0 +1,39 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+import * as msg from "gen/msg_generated";
+import { flatbuffers } from "flatbuffers";
+import { assert } from "./util";
+import * as dispatch from "./dispatch";
+
+interface Metrics {
+  opsDispatched: number;
+  opsCompleted: number;
+  bytesSentControl: number;
+  bytesSentData: number;
+  bytesReceived: number;
+}
+
+export function metrics(): Metrics {
+  return res(dispatch.sendSync(...req()));
+}
+
+function req(): [flatbuffers.Builder, msg.Any, flatbuffers.Offset] {
+  const builder = new flatbuffers.Builder();
+  msg.Metrics.startMetrics(builder);
+  const inner = msg.Metrics.endMetrics(builder);
+  return [builder, msg.Any.Metrics, inner];
+}
+
+function res(baseRes: null | msg.Base): Metrics {
+  assert(baseRes !== null);
+  assert(msg.Any.MetricsRes === baseRes!.innerType());
+  const res = new msg.MetricsRes();
+  assert(baseRes!.inner(res) !== null);
+
+  return {
+    opsDispatched: res.opsDispatched().toFloat64(),
+    opsCompleted: res.opsCompleted().toFloat64(),
+    bytesSentControl: res.bytesSentControl().toFloat64(),
+    bytesSentData: res.bytesSentData().toFloat64(),
+    bytesReceived: res.bytesReceived().toFloat64()
+  };
+}
-- 
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