Files
Jungfraujoch/frame_serialize/ZMQWriterNotificationPuller.cpp
2024-06-30 17:48:35 +02:00

35 lines
1.2 KiB
C++

// Copyright (2019-2024) Paul Scherrer Institute
#include "ZMQWriterNotificationPuller.h"
#include "nlohmann/json.hpp"
ZMQWriterNotificationPuller::ZMQWriterNotificationPuller(const std::string &addr, std::chrono::milliseconds timeout)
: socket(ZMQSocketType::Pull) {
socket.ReceiveTimeout(timeout);
socket.Bind(addr);
}
std::optional<ZMQWriterNotificationOutput> ZMQWriterNotificationPuller::Receive(uint64_t run_number, const std::string &run_name) {
ZMQMessage msg;
// Loop to ensure that messages with wrong run_number or run_name are filtered
while (socket.Receive(msg)) {
try {
nlohmann::json j = nlohmann::json::parse(std::string((char *) msg.data(), msg.size()));
if ((j["run_number"] == run_number) && (j["run_name"] == run_name)) {
ZMQWriterNotificationOutput ret{};
ret.ok = j["ok"];
ret.processed_images = j["processed_images"];
ret.socket_number = j["socket_number"];
return ret;
}
} catch (const std::exception &e) {
// Cannot parse properly
}
}
return {};
}
std::string ZMQWriterNotificationPuller::GetEndpointName() {
return socket.GetEndpointName();
}