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/*
* Copyright 2016 Tobias Frust
*
* DetectorModule.cpp
*
* Created on: 29.06.2016
* Author: Tobias Frust
*/
#include "DetectorModule.h"
#include "../ConfigReader/ConfigReader.h"
#include <boost/log/trivial.hpp>
#include <exception>
#include <fstream>
void timer_start(std::function<void(int)> func, unsigned int interval, unsigned int max_packets){
std::thread([func, interval, max_packets]() {
int packets = 1;
auto next = std::chrono::high_resolution_clock::now();
while (true)
{
func(packets);
next += std::chrono::microseconds(packets * interval);
auto now = std::chrono::high_resolution_clock::now();
if (now > next) {
std::chrono::nanoseconds late = now - next;
packets = 1 + (late.count() / interval / 1000);
if (packets > max_packets)
packets = max_packets;
} else {
packets = 1;
}
std::this_thread::sleep_until(next);
// std::this_thread::sleep_for(std::chrono::microseconds(interval));
}
}).detach();
}
DetectorModule::DetectorModule(const int detectorID, const std::string& address, const std::string& configPath) :
detectorID_{detectorID},
numberOfDetectorsPerModule_{16},
index_{0u},
client_{address, detectorID+4000},
max_packets_{1000u}{
printf("Creating %d\n", detectorID);
if (readConfig(configPath)) {
throw std::runtime_error("DetectorModule: Configuration file could not be loaded successfully. Please check!");
}
sendBuffer_.resize(max_packets_);
for(auto &it: sendBuffer_) {
it.resize(numberOfProjectionsPerPacket_ * numberOfDetectorsPerModule_ * sizeof(unsigned short) + sizeof(size_t) + sizeof(short int));
}
//read the input data from the file corresponding to the detectorModuleID
readInput();
//unsigned int sinoSize = numberOfDetectorsPerModule_*numberOfProjections_;
//std::copy(((char*)buffer_.data()), ((char*)buffer_.data())+sinoSize*sizeof(unsigned short), sendBuffer_.begin()+sizeof(std::size_t));
printf("Created %d\n", detectorID);
}
auto DetectorModule::send(int packets = 1) -> void{
BOOST_LOG_TRIVIAL(debug) << "Detectormodule " << detectorID_ << " :sending udp packet with index " << index_ << ".";
int numberOfParts = numberOfProjections_/numberOfProjectionsPerPacket_;
// sendBuffer_[0] = (sizeof(std::size_t)) & 0xff;
// sendBuffer_[1] = (sizeof(std::size_t) >> 8) & 0xff;
// sendBuffer_[2] = (sizeof(std::size_t) >> 16) & 0xff;
// sendBuffer_[3] = (sizeof(std::size_t) >> 24) & 0xff;
// sendBuffer_[4] = (sizeof(std::size_t) >> 32) & 0xff;
// sendBuffer_[5] = (sizeof(std::size_t) >> 40) & 0xff;
// sendBuffer_[6] = (sizeof(std::size_t) >> 48) & 0xff;
// sendBuffer_[7] = (sizeof(std::size_t) >> 56) & 0xff;
struct mmsghdr msg[packets];
struct iovec msgvec[packets];
unsigned int hdrSize = sizeof(size_t) + sizeof(short int);
unsigned int sinoSize = numberOfDetectorsPerModule_ * numberOfProjectionsPerPacket_;
memset(msg, 0, sizeof(msg));
memset(msgvec, 0, sizeof(msgvec));
for (int i = 0; i < packets; i++) {
unsigned int bufferSizeIndex = index_ % 1000;
char *ptr = sendBuffer_[i].data();
msgvec[i].iov_base = sendBuffer_[i].data();
msgvec[i].iov_len = sendBuffer_[i].size();
msg[i].msg_hdr.msg_iov = &msgvec[i];
msg[i].msg_hdr.msg_iovlen = 1;
*reinterpret_cast<size_t*>(ptr) = index_ * numberOfParts + partID_;
*reinterpret_cast<unsigned short*>(ptr + sizeof(size_t)) = partID_;
memcpy(ptr + hdrSize, buffer_.data() + sinoSize * (bufferSizeIndex * numberOfParts + partID_), sinoSize * sizeof(unsigned short));
partID_ = (partID_ + 1) % numberOfParts;
if (partID_ == 0) ++index_;
}
client_.msend(packets, msg);
auto ts = std::chrono::high_resolution_clock::now();
std::chrono::nanoseconds d = ts - ts_;
counter_ += packets;
if (d.count() >= 1000000000) {
printf("Packets %i (%zu bytes, %.3lf GBit/s) in %.3lf ms\n", counter_, sendBuffer_[0].size(), 8. * counter_ * sendBuffer_[0].size() / 1024 / 1024 / 1024, 1. * d.count() / 1000000);
counter_ = 0;
ts_ = ts;
}
}
auto DetectorModule::sendPeriodically(unsigned int timeIntervall) -> void {
counter_ = 0;
ips_ = 1000000. / ((double)timeIntervall);
ts_ = std::chrono::high_resolution_clock::now();
std::function<void(int)> f = [=](int packets = 1) {
this->send(packets);
};
timer_start(f, timeIntervall, max_packets_);
}
auto DetectorModule::readInput() -> void {
if(path_.back() != '/')
path_.append("/");
//open file
const std::string filePath = path_ + fileName_ + std::to_string(detectorID_+1) + fileEnding_;
BOOST_LOG_TRIVIAL(debug) << "DetectorModule: Path = " << filePath;
std::ifstream input(filePath, std::ios::in | std::ios::binary);
if(input){
//allocate memory in vector
std::streampos fileSize;
input.seekg(0, std::ios::end);
fileSize = input.tellg();
input.seekg(0, std::ios::beg);
buffer_.resize(fileSize / sizeof(unsigned short));
input.read((char*) &buffer_[0], fileSize);
}else{
throw std::runtime_error("File not found.");
}
}
auto DetectorModule::readConfig(const std::string& configFile) -> bool {
ConfigReader configReader = ConfigReader(configFile.data());
int samplingRate, scanRate;
if (configReader.lookupValue("numberOfFanDetectors", numberOfDetectors_)
&& configReader.lookupValue("dataInputPath", path_)
&& configReader.lookupValue("dataFileName", fileName_)
&& configReader.lookupValue("dataFileEnding", fileEnding_)
&& configReader.lookupValue("numberOfPlanes", numberOfPlanes_)
&& configReader.lookupValue("samplingRate", samplingRate)
&& configReader.lookupValue("scanRate", scanRate)
&& configReader.lookupValue("numberOfDataFrames", numberOfFrames_)
&& configReader.lookupValue("numberOfProjectionsPerPacket", numberOfProjectionsPerPacket_)
&& configReader.lookupValue("numberOfDetectorsPerModule", numberOfDetectorsPerModule_)) {
numberOfProjections_ = samplingRate * 1000000 / scanRate;
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
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