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- /*
- * Copyright 2015-present Facebook, 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.
- */
- #pragma once
- #include <memory>
- #include <stdexcept>
- #include <vector>
- #include <glog/logging.h>
- #include <folly/portability/GTest.h>
- struct Watchdog {
- static std::vector<Watchdog*>& creation_order();
- Watchdog();
- ~Watchdog() {
- if (creation_order().back() != this) {
- LOG(FATAL) << "Watchdog destruction order mismatch";
- }
- creation_order().pop_back();
- }
- const size_t serial_number;
- size_t livingWatchdogCount() const {
- return creation_order().size();
- }
- Watchdog(const Watchdog&) = delete;
- Watchdog& operator=(const Watchdog&) = delete;
- Watchdog(Watchdog&&) noexcept = default;
- Watchdog& operator=(Watchdog&&) noexcept = default;
- };
- // Some basic types we use for tracking.
- struct ChildWatchdog : public Watchdog {};
- struct GlobalWatchdog : public Watchdog {};
- struct UnregisteredWatchdog : public Watchdog {};
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