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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <atomic>
#include <exception>
#include <utility>
// This file provides a wrapper over the function registered by `std::set_terminate`. This
// facilitates making `stdx::set_terminate` work correctly on windows. In windows,
// `std::set_terminate` works on a per-thread basis. Our `stdx::thread` header registers our
// handler using the `stdx::terminate_detail::TerminateHandlerInterface::dispatch` as an entry point
// for `std::set_terminate` when a thread starts on windows. `stdx::set_terminate` sets the handler
// globally for all threads. Our wrapper, which is registered with each thread, calls the global
// handler.
//
// NOTE: Our wrapper is not initialization order safe. It is not safe to set the terminate handler
// until main has started.
namespace mongo::stdx {
// In order to grant `mongo::stdx::thread` access to the dispatch method, we need to know this
// class's name. A forward-decl header would be overkill for this singular special case.
class thread;
// This must be the same as the definition in standard. Do not alter this alias.
using ::std::terminate_handler;
#if defined(_WIN32)
class TerminateHandlerDetailsInterface {
friend ::mongo::stdx::thread;
static void dispatch() noexcept;
};
terminate_handler set_terminate(const terminate_handler handler) noexcept;
terminate_handler get_terminate() noexcept;
#else
using ::std::get_terminate; // NOLINT
using ::std::set_terminate; // NOLINT
#endif
} // namespace mongo::stdx
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