llvm-project/clang-tools-extra/clangd/support/Shutdown.cpp

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C++

//===--- Shutdown.cpp - Unclean exit scenarios ----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "support/Shutdown.h"
#include <atomic>
#include <cstdlib>
#include <thread>
namespace clang {
namespace clangd {
void abortAfterTimeout(std::chrono::seconds Timeout) {
// This is more portable than sys::WatchDog, and yields a stack trace.
std::thread([Timeout] {
std::this_thread::sleep_for(Timeout);
std::abort();
}).detach();
}
static std::atomic<bool> ShutdownRequested = {false};
void requestShutdown() {
if (ShutdownRequested.exchange(true))
// This is the second shutdown request. Exit hard.
std::abort();
}
bool shutdownRequested() { return ShutdownRequested; }
} // namespace clangd
} // namespace clang