folly/folly/memory/ReentrantAllocator.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/memory/ReentrantAllocator.h>

#include <new>
#include <utility>

#include <folly/lang/Bits.h>
#include <folly/lang/SafeAssert.h>
#include <folly/portability/SysMman.h>

namespace folly {

namespace {

max_align_t dummy; // return value for zero-sized allocations

void* reentrant_allocate(std::size_t const n) noexcept { … }

void reentrant_deallocate(void* const p, std::size_t const n) noexcept { … }

} // namespace

namespace detail {

reentrant_allocator_base::reentrant_allocator_base(
    reentrant_allocator_options const& options) noexcept { … }

reentrant_allocator_base::reentrant_allocator_base(
    reentrant_allocator_base const& that) noexcept { … }

reentrant_allocator_base& reentrant_allocator_base::operator=(
    reentrant_allocator_base const& that) noexcept { … }

reentrant_allocator_base::~reentrant_allocator_base() { … }

void* reentrant_allocator_base::allocate(
    std::size_t const n, std::size_t const a) noexcept { … }

void reentrant_allocator_base::deallocate(
    void* const p, std::size_t const n) noexcept { … }

void reentrant_allocator_base::obliterate() noexcept { … }

} // namespace detail

} // namespace folly