1 #include "artdaq-ots/Generators/UDPReceiver.hh"
3 #include "canvas/Utilities/Exception.h"
4 #include "artdaq/Application/GeneratorMacros.hh"
5 #include "cetlib/exception.h"
6 #include "fhiclcpp/ParameterSet.h"
7 #include "artdaq-core/Utilities/SimpleLookupPolicy.hh"
8 #include "artdaq-ots/Overlays/UDPFragmentWriter.hh"
9 #include "artdaq-ots/Overlays/FragmentType.hh"
10 #include "otsdaq-core/Macros/CoutHeaderMacros.h"
19 ots::UDPReceiver::UDPReceiver(fhicl::ParameterSet
const & ps)
20 : CommandableFragmentGenerator(ps)
21 , rawOutput_(ps.get<bool>(
"raw_output_enabled",false))
22 , rawPath_(ps.get<std::string>(
"raw_output_path",
"/tmp"))
23 , dataport_(ps.get<int>(
"port",6343))
24 , ip_(ps.get<std::string>(
"ip",
"127.0.0.1"))
25 , expectedPacketNumber_(0)
26 , sendCommands_(ps.get<bool>(
"send_OtsUDP_commands",false))
27 , fragmentWindow_(ps.get<double>(
"fragment_time_window_ms", 1000))
28 , lastFrag_(std::chrono::high_resolution_clock::now())
30 datasocket_ = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
33 throw art::Exception(art::errors::Configuration) <<
"UDPReceiver: Error creating socket!" << std::endl;
37 struct sockaddr_in si_me_data;
38 si_me_data.sin_family = AF_INET;
39 si_me_data.sin_port = htons(dataport_);
40 si_me_data.sin_addr.s_addr = htonl(INADDR_ANY);
41 if(bind(datasocket_, (
struct sockaddr *)&si_me_data,
sizeof(si_me_data)) == -1)
43 throw art::Exception(art::errors::Configuration) <<
44 "UDPReceiver: Cannot bind data socket to port " << dataport_ << std::endl;
48 si_data_.sin_family = AF_INET;
49 si_data_.sin_port = htons(dataport_);
50 if(inet_aton(ip_.c_str(), &si_data_.sin_addr) == 0)
52 throw art::Exception(art::errors::Configuration) <<
53 "UDPReceiver: Could not translate provided IP Address: " << ip_ <<
"\n";
56 mf::LogInfo(
"UDPReceiver") <<
"UDP Receiver Construction Complete!" << std::endl;
59 ots::UDPReceiver::~UDPReceiver()
61 receiverThread_.join();
64 void ots::UDPReceiver::start() {
67 std::cout << __COUT_HDR_FL__ <<
"Start." << std::endl;
68 mf::LogInfo(
"UDPReceiver") <<
"Starting..." << std::endl;
70 receiverThread_ = std::thread(&UDPReceiver::receiveLoop_,
this);
73 void ots::UDPReceiver::receiveLoop_() {
75 uint8_t droppedPackets = 0;
76 while(!should_stop()) {
77 struct pollfd ufds[1];
78 ufds[0].fd = datasocket_;
79 ufds[0].events = POLLIN | POLLPRI;
81 int rv = poll(ufds, 1, 1000);
84 std::cout << __COUT_HDR_FL__ <<
"revents: " << ufds[0].revents <<
", " << std::endl;
85 if(ufds[0].revents == POLLIN || ufds[0].revents == POLLPRI)
91 uint32_t peekBuffer[6];
92 recvfrom(datasocket_, peekBuffer,
sizeof(peekBuffer), MSG_PEEK,
93 (
struct sockaddr *) &si_data_, (socklen_t*)
sizeof(si_data_));
95 mf::LogInfo(
"UDPReceiver") <<
"Received UDP Packet with sequence number " << std::hex <<
"0x" << (int)peekBuffer[1] <<
"!" << std::dec;
96 std::cout << __COUT_HDR_FL__ <<
"peekBuffer[1] == expectedPacketNumber_: " << std::hex << (int)peekBuffer[1] <<
" =?= " << (
int)expectedPacketNumber_ << std::endl;
98 uint32_t seqNum = peekBuffer[5];
100 if(seqNum >= expectedPacketNumber_ || (seqNum < 10 && expectedPacketNumber_ > 240) || droppedPackets > 0 || expectedPacketNumber_ - seqNum > 20)
102 if(seqNum != expectedPacketNumber_ && (seqNum >= expectedPacketNumber_ || (seqNum < 10 && expectedPacketNumber_ > 200)))
104 int deltaHi = seqNum - expectedPacketNumber_;
105 int deltaLo = 4294967295 + seqNum - expectedPacketNumber_;
106 droppedPackets += deltaLo;
107 mf::LogWarning(
"UDPReceiver") <<
"Dropped/Delayed packets detected: " << std::dec << std::to_string(droppedPackets);
108 expectedPacketNumber_ = seqNum;
109 }
else if (seqNum != expectedPacketNumber_) {
110 int delta = expectedPacketNumber_ - seqNum;
111 mf::LogWarning(
"UDPReceiver") << std::dec <<
"Sequence Number significantly different than expected! (delta: " << delta <<
")";
114 packetBuffer_t* buffer =
new packetBuffer_t();
115 memset(&((*buffer).at(0)),0,
sizeof(packetBuffer_t));
116 int DJN= recvfrom(datasocket_, &(*buffer).at(0),
sizeof(packetBuffer_t), 0,(
struct sockaddr *) &si_data_, (socklen_t*)
sizeof(si_data_));
117 mf::LogInfo(
"DJN UDPReceiver") <<
"UDP packet recvfrom got Nbytes=" << (int)DJN <<
" into buffer.";
119 if(droppedPackets == 0) {
120 std::lock_guard<std::mutex> lock(receiveBufferLock_);
121 receiveBuffers_.emplace_back(std::unique_ptr<packetBuffer_t>(buffer));
125 for(packetBuffer_list_t::reverse_iterator it = packetBuffers_.rbegin(); it != packetBuffers_.rend(); ++it) {
126 if(seqNum < (*it)->at(1)) {
127 std::lock_guard<std::mutex> lock(receiveBufferLock_);
128 receiveBuffers_.emplace(it.base(), std::unique_ptr<packetBuffer_t>(buffer));
130 expectedPacketNumber_--;
135 std::lock_guard<std::mutex> lock(receiveBufferLock_);
136 receiveBuffers_.emplace_back(std::unique_ptr<packetBuffer_t>(buffer));
139 mf::LogInfo(
"UDPReceiver") <<
"Now placing UDP packet with sequence number " << std::hex << (int)seqNum <<
" into buffer." << std::dec;
142 ++expectedPacketNumber_;
145 std::cout << __COUT_HDR_FL__ <<
"waiting..." << std::endl;
148 mf::LogInfo(
"UDPReceiver") <<
"receive Loop exiting..." << std::endl;
151 bool ots::UDPReceiver::getNext_(artdaq::FragmentPtrs & output)
157 while(receiveBuffers_.size() == 0 && isTimerExpired_()) { usleep(1000); }
160 std::lock_guard<std::mutex> lock(receiveBufferLock_);
161 std::move(receiveBuffers_.begin(), receiveBuffers_.end(), std::inserter(packetBuffers_,packetBuffers_.end()));
162 receiveBuffers_.clear();
164 mf::LogInfo(
"UDPReceiver") <<
"Calling ProcessData";
165 ProcessData_(output);
167 mf::LogInfo(
"UDPReceiver") <<
"Returning output of size " << output.size() <<
" to TriggeredFragmentGenerator";
171 void ots::UDPReceiver::ProcessData_(artdaq::FragmentPtrs & output) {
174 metadata.port = dataport_;
175 metadata.address = si_data_.sin_addr.s_addr;
177 std::size_t initial_payload_size = 0;
179 output.emplace_back( artdaq::Fragment::FragmentBytes(initial_payload_size,
180 ev_counter(), fragment_id(),
181 ots::detail::FragmentType::UDP, metadata) );
185 std::cout << __COUT_HDR_FL__ <<
"Received data, now placing data with UDP sequence number "
186 << std::hex << static_cast<int>((*packetBuffers_.front()).at(1))
187 <<
" into UDPFragment" << std::endl;
188 thisFrag.resize(64050 * packetBuffers_.size() + 1);
189 std::ofstream rawOutput;
191 std::string outputPath = rawPath_ +
"/UDPReceiver-"+ ip_ +
":" + std::to_string(dataport_) +
".bin";
192 rawOutput.open(outputPath, std::ios::out | std::ios::app | std::ios::binary );
195 DataType dataType = getDataType((*packetBuffers_.front()).at(0));
196 thisFrag.set_hdr_type((
int)dataType);
198 for(
auto jj = packetBuffers_.begin(); jj != packetBuffers_.end(); ++jj) {
199 for(
int ii = 0; ii < 64050; ++ii) {
201 if((*jj)->at(ii) == 0 && (dataType == DataType::JSON || dataType == DataType::String)) {
break; }
203 if(rawOutput_) rawOutput.write((
char*)&((*jj)->at(ii)),
sizeof(uint8_t));
204 *(thisFrag.dataBegin() + pos) = (*jj)->at(ii);
208 packetBuffers_.clear();
210 if(dataType == DataType::JSON || dataType == DataType::String) {
211 *(thisFrag.dataBegin() + pos) = 0;
213 if(rawOutput_) rawOutput.write(&zero,
sizeof(
char));
215 if(rawOutput_) rawOutput.close();
218 void ots::UDPReceiver::send(CommandType command)
221 CommandPacket packet;
222 packet.type = command;
224 sendto(datasocket_,&packet,
sizeof(packet),0, (
struct sockaddr *) &si_data_,
sizeof(si_data_));
228 bool ots::UDPReceiver::isTimerExpired_()
230 auto now = std::chrono::high_resolution_clock::now();
231 auto diff = std::chrono::duration<double, std::milli>(now - lastFrag_).count();
232 return diff > fragmentWindow_;
235 void ots::UDPReceiver::stop()
237 #pragma message "Using default implementation of UDPReceiver::stop()"
240 void ots::UDPReceiver::stopNoMutex()
242 #pragma message "Using default implementation of UDPReceiver::stopNoMutex()"