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Jungfraujoch/image_puller/ImagePuller.h

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1.4 KiB
C++

// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only
#ifndef JFJOCH_IMAGEPULLER_H
#define JFJOCH_IMAGEPULLER_H
#include <string>
#include <memory>
#include "../common/ZMQWrappers.h"
#include "../frame_serialize/CBORStream2Deserializer.h"
#include "../common/ThreadSafeFIFO.h"
#include "../common/JfjochTCP.h"
struct RawFrame {
TcpFrameHeader header{};
std::vector<uint8_t> payload;
bool end = false;
};
struct ImagePullerOutput {
std::shared_ptr<ZMQMessage> zmq_msg;
std::shared_ptr<RawFrame> tcp_msg;
std::shared_ptr<CBORStream2DeserializerOutput> cbor;
};
struct ImagePullerStatistics {
size_t outside_fifo_max_util = 0;
};
class ImagePuller {
protected:
ThreadSafeFIFO<ImagePullerOutput> outside_fifo; // assuming 1 file is <1000 files, this should be enough to buffer
public:
constexpr static size_t DefaultQueueSize = 1000;
constexpr static auto PollTimeout = std::chrono::milliseconds(100);
explicit ImagePuller(size_t fifo_size = DefaultQueueSize);
virtual ~ImagePuller() = default;
[[nodiscard]] std::optional<ImagePullerOutput> PollImage(std::chrono::microseconds timeout = PollTimeout);
[[nodiscard]] size_t GetMaxFifoUtilization() const;
[[nodiscard]] size_t GetCurrentFifoUtilization() const;
virtual void Disconnect() = 0;
};
#endif //JFJOCH_IMAGEPULLER_H