58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
// Copyright (2019-2022) Paul Scherrer Institute
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include "UDPSimulator.h"
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <cstring>
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#include <fstream>
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#include "../common/JFJochException.h"
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#include "../common/Definitions.h"
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#include "../jungfrau/jf_packet.h"
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UDPSimulator::UDPSimulator(const std::vector<uint16_t> &in_image) : image(in_image) {
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if (image.size() != RAW_MODULE_SIZE)
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throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
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"Input image for simulator is wrong");
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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if (fd < 0)
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throw JFJochException(JFJochExceptionCategory::UDPError,
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"Cannot create UDP socket");
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}
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UDPSimulator::~UDPSimulator() {
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close(fd);
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}
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void UDPSimulator::SendImage(const std::string &ipv4_dest_addr,
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uint64_t frame_number,
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uint16_t module_number) {
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std::unique_lock<std::mutex> ul(m);
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struct sockaddr_in addr {
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.sin_family = AF_INET,
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.sin_port = htons(8192 + module_number * 2),
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.sin_addr = {
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.s_addr = inet_addr(ipv4_dest_addr.c_str())
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}
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};
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if (inet_pton(AF_INET, ipv4_dest_addr.c_str(), &addr.sin_addr.s_addr) <= 0)
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throw JFJochException(JFJochExceptionCategory::UDPError, "Cannot parse address " + ipv4_dest_addr);
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jf_udp_payload packet{
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.framenum = frame_number
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};
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for (int i = 0; i < 128; i++) {
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packet.packetnum = i;
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memcpy(packet.data, image.data() + 4096 * i, 4096 * sizeof(uint16_t));
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sendto(fd, &packet, sizeof(jf_udp_payload), 0, (struct sockaddr *) &addr, sizeof(addr));
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}
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}
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