chromium/base/memory/shared_memory_mapping.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40284755): Remove this and spanify to fix the errors.
#pragma allow_unsafe_buffers
#endif

#include "base/memory/shared_memory_mapping.h"

#include <cstdint>
#include <utility>

#include "base/bits.h"
#include "base/logging.h"
#include "base/memory/shared_memory_security_policy.h"
#include "base/memory/shared_memory_tracker.h"
#include "base/system/sys_info.h"
#include "base/unguessable_token.h"
#include "build/build_config.h"

namespace base {

SharedMemoryMapping::SharedMemoryMapping() = default;

SharedMemoryMapping::SharedMemoryMapping(SharedMemoryMapping&& mapping) noexcept
    : … { … }

SharedMemoryMapping& SharedMemoryMapping::operator=(
    SharedMemoryMapping&& mapping) noexcept { … }

SharedMemoryMapping::~SharedMemoryMapping() { … }

SharedMemoryMapping::SharedMemoryMapping(span<uint8_t> mapped_span,
                                         size_t size,
                                         const UnguessableToken& guid,
                                         SharedMemoryMapper* mapper)
    : … { … }

void SharedMemoryMapping::Unmap() { … }

ReadOnlySharedMemoryMapping::ReadOnlySharedMemoryMapping() = default;
ReadOnlySharedMemoryMapping::ReadOnlySharedMemoryMapping(
    ReadOnlySharedMemoryMapping&&) noexcept = default;
ReadOnlySharedMemoryMapping& ReadOnlySharedMemoryMapping::operator=(
    ReadOnlySharedMemoryMapping&&) noexcept = default;
ReadOnlySharedMemoryMapping::ReadOnlySharedMemoryMapping(
    span<uint8_t> mapped_span,
    size_t size,
    const UnguessableToken& guid,
    SharedMemoryMapper* mapper)
    : … { … }

WritableSharedMemoryMapping::WritableSharedMemoryMapping() = default;
WritableSharedMemoryMapping::WritableSharedMemoryMapping(
    WritableSharedMemoryMapping&&) noexcept = default;
WritableSharedMemoryMapping& WritableSharedMemoryMapping::operator=(
    WritableSharedMemoryMapping&&) noexcept = default;
WritableSharedMemoryMapping::WritableSharedMemoryMapping(
    span<uint8_t> mapped_span,
    size_t size,
    const UnguessableToken& guid,
    SharedMemoryMapper* mapper)
    : … { … }

}  // namespace base