1 files changed, 29 insertions, 0 deletions
diff --git a/dom/midi/MIDIManagerChild.cpp b/dom/midi/MIDIManagerChild.cpp
new file mode 100644
index 0000000000..cb0dd6a793
--- /dev/null
+++ b/dom/midi/MIDIManagerChild.cpp
@@ -0,0 +1,29 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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/. */
+
+#include "MIDIManagerChild.h"
+#include "mozilla/dom/MIDIAccessManager.h"
+
+using namespace mozilla::dom;
+
+MIDIManagerChild::MIDIManagerChild() : mShutdown(false) {}
+
+mozilla::ipc::IPCResult MIDIManagerChild::RecvMIDIPortListUpdate(
+    const MIDIPortList& aPortList) {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (mShutdown) {
+    return IPC_OK();
+  }
+  MOZ_ASSERT(MIDIAccessManager::IsRunning());
+  MIDIAccessManager::Get()->Update(aPortList);
+  return IPC_OK();
+}
+
+void MIDIManagerChild::Shutdown() {
+  MOZ_ASSERT(!mShutdown);
+  mShutdown = true;
+  SendShutdown();
+}