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/*
* Copyright 2016
*
* ReceiverThreads.cpp
*
* Created on: 21.07.2016
* Author: Tobias Frust
*/
#include "ReceiverThreads.h"
#include "../UDPServer/UDPServer.h"
#include <boost/log/trivial.hpp>
ReceiverThreads::ReceiverThreads(const std::string& address, const int timeIntervall, const int numberOfDetectorModules)
: timeIntervall_{timeIntervall}, numberOfDetectorModules_{numberOfDetectorModules}, address_{address}, loss_{0} {
for(auto i = 0; i < numberOfDetectorModules; i++){
receiverModules_.emplace_back(&ReceiverThreads::receiverThread, this, 4000+i);
}
for(auto i = 0; i < numberOfDetectorModules; i++){
receiverModules_[i].join();
}
}
auto ReceiverThreads::receiverThread(const int port) -> void {
int max_packets = 100;
int max_packet_size = 65535;
struct vma_ap_t *vma = vma_get_api();
if (!vma) throw "Can't get LibVMA API"
struct vma_packet_desc_t vma_packet;
struct vma_buff_t *vma_buf;
int vma_buf_offset;
int vma_ring_fd;
vma->get_socket_rings_fds(fd?, &vma_ring_fd, 1);
if (vma_ring_fd < 0) throw "Can't get ring fds";
while (true) {
// free vma packets
struct vma_completion_t vma_comps[max_packets];
int n_packets = vma->socketxtreme_poll(vma_ring_fd, vma_comps, max_packets, 0);
if (!n_packets) continue;
for (int i = 0; i < n_packets; i++) {
switch (vma_comps[i].events) {
case VMA_SOCKETXTREME_PACKET:
break;
case EPOLLERR:
case EPOLLRDHUP:
printf("Polling error event=0x%lx user_data=%ld\n", vma_comps[i].events, vma_comps[i].user_data);
throw "Polling error";
default:
printf("Unsupported event=0x%lx user_data=%ld\n", vma_comps[i].events, vma_comps[i].user_data);
throw "Polling error";
}
int packet_len = vma_comps[i].packet.total_len;
int n_buffs = vma_comps[i].packet.num_bufs;
vma_comps.packet.buff_lst
vma_comps[i].packet.buff_lst->payload
/*
<------><------><------><------><------>conn = conns_in[vma_comps.user_data] vma_comps.packet.total_len;
<------><------><------><------><------>conn->vma_packet.num_bufs = vma_comps.packet.num_bufs;
<------><------><------><------><------>conn->vma_packet.total_len = vma_comps.packet.total_len;
<------><------><------><------><------>conn->vma_packet.buff_lst = vma_comps.packet.buff_lst;
<------><------><------><------><------>conn->vma_buf = conn->vma_packet.buff_lst;
<------><------><------><------><------>conn->vma_buf_offset = 0;
*/
/*
ret = _min((_config.msg_size - conn->msg_len), (conn->vma_buf->len - conn->vma_buf_offset));
memcpy(((uint8_t *)msg_hdr) + conn->msg_len,
((uint8_t *)conn->vma_buf->payload) + conn->vma_buf_offset,
ret);
*/
_vma_api->socketxtreme_free_vma_packets(&conn->vma_packet, 1);
}
auto ReceiverThreads::receiverThread(const int port) -> void {
int max_packets = 100;
int max_packet_size = 65535;
UDPServer server = UDPServer(address_, port);
std::vector<std::vector<char>> buffers;
std::size_t rcv_index = 0;
std::size_t rcv_packets = 0;
std::size_t rcv_size = 0;
std::size_t lastIndex{0};
std::size_t loss = 0;
struct mmsghdr msg[max_packets];
struct iovec msgvec[max_packets];
buffers.resize(max_packets);
memset(msg, 0, sizeof(msg));
memset(msgvec, 0, sizeof(msgvec));
for (int i = 0; i < max_packets; i++) {
buffers[i].resize(max_packet_size);
msgvec[i].iov_base = buffers[i].data();
msgvec[i].iov_len = buffers[i].size();
msg[i].msg_hdr.msg_iov = &msgvec[i];
msg[i].msg_hdr.msg_iovlen = 1;
}
BOOST_LOG_TRIVIAL(info) << "Address: " << address_ << " port: " << port << " timeout: " << timeIntervall_;
double coef = 1000. * 1000. * 1000. / 1024. / 1024. / 1024.;
auto ts_last = std::chrono::high_resolution_clock::now();
while(true){
int packets = server.mrecv(max_packets, msg, 1); //timeIntervall_);
if (packets >= 0) {
for (int i = 0; i < packets; i++) {
int bytes = msg[i].msg_len;
unsigned short *buf = reinterpret_cast<unsigned short*>(msgvec[i].iov_base);
rcv_packets++;
rcv_size += bytes;
// BOOST_LOG_TRIVIAL(debug) << "Received " << bytes << " Bytes.";
std::size_t index =*((std::size_t *)buf);
int diff = index - lastIndex - 1;
if(diff > 0){
loss += diff;
BOOST_LOG_TRIVIAL(debug) << "Packet loss or wrong order! new: " << index << " old: " << lastIndex;
}
/* if (port == 4000) {
printf("%i:%i:%i:%i,", index, diff, loss, i);
}*/
lastIndex = index;
}
}
auto ts = std::chrono::high_resolution_clock::now();
std::chrono::nanoseconds d = ts - ts_last;
if (d.count() >= 1000000000) {
printf("Lost %.2lf%, Received: %i (%zu bytes, %.3lf GBit/s) in %.3lf ms\n", loss / (double)(lastIndex - rcv_index)*100.0, rcv_packets, rcv_size, 8. * rcv_size * coef / d.count() , 1. * d.count() / 1000000);
rcv_packets = 0;
rcv_size = 0;
rcv_index = lastIndex;
loss = 0;
ts_last = ts;
}
}
BOOST_LOG_TRIVIAL(info) << "Lost " << loss << " from " << lastIndex << " packets; (" << loss/(double)lastIndex*100.0 << "%)";
loss_ += loss;
}
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