+////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2015 Realm Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////
+
+#include "impl/weak_realm_notifier.hpp"
+
+#include "shared_realm.hpp"
+#include "util/event_loop_signal.hpp"
+
+using namespace realm;
+using namespace realm::_impl;
+
+
+WeakRealmNotifier::WeakRealmNotifier(const std::shared_ptr<Realm>& realm, bool cache)
+: m_realm(realm)
+, m_execution_context(realm->config().execution_context)
+, m_realm_key(realm.get())
+, m_cache(cache)
+, m_signal(std::make_shared<util::EventLoopSignal<Callback>>(Callback{realm}))
+{
+}
+
+WeakRealmNotifier::~WeakRealmNotifier() = default;
+
+void WeakRealmNotifier::Callback::operator()() const
+{
+ if (auto realm = weak_realm.lock()) {
+ realm->notify();
+ }
+}
+
+void WeakRealmNotifier::notify()
+{
+ m_signal->notify();
+}