1 files changed, 51 insertions, 0 deletions
diff --git a/dom/ipc/JSOracleChild.cpp b/dom/ipc/JSOracleChild.cpp
new file mode 100644
index 0000000000..1ac495ab87
--- /dev/null
+++ b/dom/ipc/JSOracleChild.cpp
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "mozilla/dom/JSOracleChild.h"
+
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/dom/JSValidatorChild.h"
+#include "mozilla/dom/PJSValidatorChild.h"
+#include "mozilla/ipc/Endpoint.h"
+
+using namespace mozilla::dom;
+
+static mozilla::StaticRefPtr<JSOracleChild> sOracleSingletonChild;
+
+static mozilla::StaticAutoPtr<JSFrontendContextHolder> sJSFrontendContextHolder;
+
+/* static */
+void JSFrontendContextHolder::MaybeInit() {
+  if (!sJSFrontendContextHolder) {
+    sJSFrontendContextHolder = new JSFrontendContextHolder();
+    ClearOnShutdown(&sJSFrontendContextHolder);
+  }
+}
+
+/* static */
+JS::FrontendContext* JSOracleChild::JSFrontendContext() {
+  MOZ_ASSERT(sJSFrontendContextHolder);
+  return sJSFrontendContextHolder->mFc;
+}
+
+JSOracleChild* JSOracleChild::GetSingleton() {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (!sOracleSingletonChild) {
+    sOracleSingletonChild = new JSOracleChild();
+    ClearOnShutdown(&sOracleSingletonChild);
+  }
+  return sOracleSingletonChild;
+}
+
+already_AddRefed<PJSValidatorChild> JSOracleChild::AllocPJSValidatorChild() {
+  return MakeAndAddRef<JSValidatorChild>();
+}
+
+void JSOracleChild::Start(Endpoint<PJSOracleChild>&& aEndpoint) {
+  DebugOnly<bool> ok = std::move(aEndpoint).Bind(this);
+  JSFrontendContextHolder::MaybeInit();
+  MOZ_ASSERT(ok);
+}