folly/folly/CancellationToken.cpp

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * 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 <folly/CancellationToken.h>
#include <folly/Optional.h>
#include <folly/synchronization/detail/Sleeper.h>

#include <glog/logging.h>

#include <algorithm>
#include <new>
#include <thread>
#include <tuple>

namespace folly {
namespace detail {

CancellationState::~CancellationState() { … }

bool CancellationState::tryAddCallback(
    CancellationCallback* callback,
    bool incrementRefCountIfSuccessful) noexcept { … }

void CancellationState::removeCallback(
    CancellationCallback* callback) noexcept { … }

bool CancellationState::requestCancellation() noexcept { … }

void CancellationState::lock() noexcept { … }

void CancellationState::unlock() noexcept { … }

void CancellationState::unlockAndIncrementTokenCount() noexcept { … }

void CancellationState::unlockAndDecrementTokenCount() noexcept { … }

bool CancellationState::tryLockAndCancelUnlessCancelled() noexcept { … }

template <typename Predicate>
bool CancellationState::tryLock(Predicate predicate) noexcept { … }

} // namespace detail
} // namespace folly