shared_memory_user.hpp🔗

Namespaces🔗

Name
iox
iox::runtime

Classes🔗

	Name
class	iox::runtime::SharedMemoryUser shared memory setup for the management segment user side

Source code🔗

// Copyright (c) 2019 by Robert Bosch GmbH. All rights reserved.
// Copyright (c) 2021 by Apex.AI Inc. All rights reserved.
//
// 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.
//
// SPDX-License-Identifier: Apache-2.0
#ifndef IOX_POSH_RUNTIME_SHARED_MEMORY_USER_HPP
#define IOX_POSH_RUNTIME_SHARED_MEMORY_USER_HPP

#include "iceoryx_posh/iceoryx_posh_types.hpp"
#include "iceoryx_utils/cxx/optional.hpp"
#include "iceoryx_utils/cxx/vector.hpp"
#include "iceoryx_utils/internal/posix_wrapper/shared_memory_object.hpp"
#include "iceoryx_utils/internal/relocatable_pointer/base_relative_pointer.hpp"


namespace iox
{
namespace runtime
{
class SharedMemoryUser
{
  public:
    SharedMemoryUser(const bool doMapSharedMemoryIntoThread,
                     const size_t topicSize,
                     const uint64_t segmentId,
                     const rp::BaseRelativePointer::offset_t segmentManagerAddressOffset);

  private:
    void openDataSegments(const uint64_t segmentId,
                          const rp::BaseRelativePointer::offset_t segmentManagerAddressOffset) noexcept;

  private:
    cxx::optional<posix::SharedMemoryObject> m_shmObject;
    cxx::vector<posix::SharedMemoryObject, MAX_SHM_SEGMENTS> m_dataShmObjects;
};

} // namespace runtime
} // namespace iox

#endif // IOX_POSH_RUNTIME_SHARED_MEMORY_USER_HPP

Updated on 31 May 2022 at 15:29:16 CEST