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// Copyright (c) 2020 by Robert Bosch GmbH. All rights reserved.
// Copyright (c) 2020 - 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_EXAMPLES_ICEPERF_UDS_HPP
#define IOX_EXAMPLES_ICEPERF_UDS_HPP
#include "base.hpp"
#include "iceoryx_hoofs/platform/fcntl.hpp"
#include "iceoryx_hoofs/platform/mqueue.hpp"
#include "iceoryx_hoofs/platform/socket.hpp"
#include "iceoryx_hoofs/platform/stat.hpp"
#include "iceoryx_hoofs/platform/un.hpp"
#include "iceoryx_hoofs/platform/unistd.hpp"
#include <string>
class UDS : public IcePerfBase
{
public:
/// @brief Max message size is on linux = 4096 and on mac os = 2048. To have
/// the same behavior on every platform we use 2048.
#ifdef __APPLE__
static constexpr uint32_t MAX_MESSAGE_SIZE = 2 * IcePerfBase::ONE_KILOBYTE;
#else
static constexpr uint32_t MAX_MESSAGE_SIZE = 4 * IcePerfBase::ONE_KILOBYTE;
#endif
static constexpr int32_t ERROR_CODE = -1;
static constexpr int32_t INVALID_FD = -1;
UDS(const std::string& publisherName, const std::string& subscriberName) noexcept;
/// @brief Cleans up outdated sockets, e.g. from a previous test
/// @attention only leader is allowed to call this
static void cleanupOutdatedResources(const std::string& publisherName, const std::string& subscriberName) noexcept;
void initLeader() noexcept override;
void initFollower() noexcept override;
void shutdown() noexcept override;
private:
static constexpr const char* PREFIX{"/tmp/"};
void init() noexcept;
void send(const char* buffer, uint32_t length) noexcept;
void receive(char* buffer) noexcept;
void waitForLeader() noexcept;
void waitForFollower() noexcept;
void sendPerfTopic(const uint32_t payloadSizeInBytes, const RunFlag runFlag) noexcept override;
PerfTopic receivePerfTopic() noexcept override;
static void initSocketAddress(sockaddr_un& sockAddr, const std::string& socketName);
const std::string m_publisherSocketName;
const std::string m_subscriberSocketName;
int m_sockfdPublisher{INVALID_FD};
int m_sockfdSubscriber{INVALID_FD};
struct sockaddr_un m_sockAddrPublisher;
struct sockaddr_un m_sockAddrSubscriber;
char m_message[MAX_MESSAGE_SIZE];
};
#endif // IOX_EXAMPLES_ICEPERF_UDS_HPP
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