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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#pragma once
#include "port/port.h"
#include "rocksdb/rocksdb_namespace.h"
namespace ROCKSDB_NAMESPACE {
// Resource management object for threads that joins the thread upon
// destruction. Has unique ownership of the thread object, so copying it is not
// allowed, while moving it transfers ownership.
class ThreadGuard {
public:
ThreadGuard() = default;
explicit ThreadGuard(port::Thread&& thread) : thread_(std::move(thread)) {}
ThreadGuard(const ThreadGuard&) = delete;
ThreadGuard& operator=(const ThreadGuard&) = delete;
ThreadGuard(ThreadGuard&&) noexcept = default;
ThreadGuard& operator=(ThreadGuard&&) noexcept = default;
~ThreadGuard() {
if (thread_.joinable()) {
thread_.join();
}
}
const port::Thread& GetThread() const { return thread_; }
port::Thread& GetThread() { return thread_; }
private:
port::Thread thread_;
};
} // namespace ROCKSDB_NAMESPACE
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