1 #include "artdaq/DAQdata/Globals.hh"
2 #define TRACE_NAME (app_name + "_RequestReceiver").c_str()
4 #include "artdaq/DAQdata/Globals.hh"
5 #include "artdaq/DAQrate/RequestReceiver.hh"
6 #include "artdaq/DAQrate/detail/RequestMessage.hh"
8 #include <boost/exception/all.hpp>
9 #include <boost/throw_exception.hpp>
14 #include "canvas/Utilities/Exception.h"
15 #include "cetlib_except/exception.h"
16 #include "fhiclcpp/ParameterSet.h"
18 #include "artdaq-core/Data/ContainerFragmentLoader.hh"
19 #include "artdaq-core/Data/Fragment.hh"
20 #include "artdaq-core/Utilities/ExceptionHandler.hh"
21 #include "artdaq-core/Utilities/SimpleLookupPolicy.hh"
22 #include "artdaq-core/Utilities/TimeUtils.hh"
24 #include <arpa/inet.h>
25 #include <netinet/in.h>
35 : request_stop_requested_(false)
36 , request_received_(false)
38 , request_addr_(
"227.128.12.26")
39 , receive_requests_(false)
43 : request_stop_requested_(false)
44 , request_received_(false)
46 , request_port_(ps.get<int>(
"request_port", 3001))
47 , request_addr_(ps.get<std::string>(
"request_address",
"227.128.12.26"))
48 , multicast_in_addr_(ps.get<std::string>(
"multicast_interface_ip",
"0.0.0.0"))
49 , receive_requests_(ps.get<bool>(
"receive_requests", false))
50 , end_of_run_timeout_ms_(ps.get<size_t>(
"end_of_run_quiet_timeout_ms", 1000))
51 , requests_(output_buffer)
53 if (receive_requests_)
61 TLOG(TLVL_INFO) <<
"Setting up request listen socket, rank=" << my_rank <<
", address=" << request_addr_ <<
":" << request_port_
62 <<
", multicast interface=" << multicast_in_addr_;
63 request_socket_ = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
64 if (request_socket_ < 0)
66 TLOG(TLVL_ERROR) <<
"Error creating socket for receiving data requests! err=" << strerror(errno);
70 struct sockaddr_in si_me_request;
73 if (setsockopt(request_socket_, SOL_SOCKET, SO_REUSEADDR, &yes,
sizeof(yes)) < 0)
75 TLOG(TLVL_ERROR) <<
"Unable to enable port reuse on request socket, err=" << strerror(errno);
78 memset(&si_me_request, 0,
sizeof(si_me_request));
79 si_me_request.sin_family = AF_INET;
80 si_me_request.sin_port = htons(request_port_);
81 si_me_request.sin_addr.s_addr = htonl(INADDR_ANY);
82 if (bind(request_socket_, reinterpret_cast<struct sockaddr*>(&si_me_request),
sizeof(si_me_request)) == -1)
84 TLOG(TLVL_ERROR) <<
"Cannot bind request socket to port " << request_port_ <<
", err=" << strerror(errno);
88 if (request_addr_ !=
"localhost")
91 int sts =
ResolveHost(request_addr_.c_str(), mreq.imr_multiaddr);
94 TLOG(TLVL_ERROR) <<
"Unable to resolve multicast request address, err=" << strerror(errno);
100 TLOG(TLVL_ERROR) <<
"Unable to determine the multicast network interface for " << multicast_in_addr_;
103 char addr_str[INET_ADDRSTRLEN];
104 inet_ntop(AF_INET, &(mreq.imr_interface), addr_str, INET_ADDRSTRLEN);
105 TLOG(TLVL_INFO) <<
"Successfully determined the multicast network interface for " << multicast_in_addr_ <<
": " << addr_str <<
" (RequestReceiver)";
106 if (setsockopt(request_socket_, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
sizeof(mreq)) < 0)
108 TLOG(TLVL_ERROR) <<
"Unable to join multicast group, err=" << strerror(errno);
112 TLOG(TLVL_INFO) <<
"Done setting up request socket, rank=" << my_rank;
117 stopRequestReception(
true);
122 std::unique_lock<std::mutex> lk(state_mutex_);
123 if (!receive_requests_)
return;
124 if (!request_received_ && !force)
126 TLOG(TLVL_ERROR) <<
"Stop request received by RequestReceiver, but no requests have ever been received." << std::endl
127 <<
"Check that UDP port " << request_port_ <<
" is open in the firewall config.";
132 TLOG(TLVL_DEBUG) <<
"Joining requestThread";
135 if (requestThread_.joinable())
137 requestThread_.join();
149 TLOG(TLVL_ERROR) <<
"running_ is true after thread join! Should NOT happen";
156 if (request_socket_ != -1)
158 close(request_socket_);
159 request_socket_ = -1;
161 request_received_ =
false;
166 if (!receive_requests_)
return;
167 std::unique_lock<std::mutex> lk(state_mutex_);
168 if (requestThread_.joinable())
170 requestThread_.join();
172 should_stop_ =
false;
173 request_stop_requested_ =
false;
175 if (request_socket_ == -1)
177 TLOG(TLVL_INFO) <<
"Connecting Request Reception socket";
178 setupRequestListener();
181 TLOG(TLVL_INFO) <<
"Starting Request Reception Thread";
186 catch (
const boost::exception& e)
188 TLOG(TLVL_ERROR) <<
"Caught boost::exception starting Request Receiver thread: " << boost::diagnostic_information(e) <<
", errno=" << errno;
189 std::cerr <<
"Caught boost::exception starting Request Receiver thread: " << boost::diagnostic_information(e) <<
", errno=" << errno << std::endl;
198 requests_->setRunning(
true);
199 while (!should_stop_)
201 TLOG(16) <<
"receiveRequestsLoop: Polling Request socket for new requests";
203 if (request_socket_ == -1)
205 setupRequestListener();
209 struct pollfd ufds[1];
210 ufds[0].fd = request_socket_;
211 ufds[0].events = POLLIN | POLLPRI | POLLERR;
212 int rv = poll(ufds, 1, ms_to_wait);
215 if (rv <= 0 || (ufds[0].revents != POLLIN && ufds[0].revents != POLLPRI))
217 if (rv == 1 && ((ufds[0].revents & (POLLNVAL | POLLERR | POLLHUP)) != 0))
219 close(request_socket_);
220 request_socket_ = -1;
222 if (request_stop_requested_ && TimeUtils::GetElapsedTimeMilliseconds(request_stop_timeout_) > end_of_run_timeout_ms_)
229 TLOG(11) <<
"Received packet on Request channel";
230 std::vector<uint8_t> buffer(MAX_REQUEST_MESSAGE_SIZE);
231 struct sockaddr_in from;
232 socklen_t len =
sizeof(from);
233 auto sts = recvfrom(request_socket_, &buffer[0], MAX_REQUEST_MESSAGE_SIZE, 0, reinterpret_cast<struct sockaddr*>(&from), &len);
236 TLOG(TLVL_ERROR) <<
"Error receiving request message header err=" << strerror(errno);
237 close(request_socket_);
238 request_socket_ = -1;
243 TLOG(11) <<
"Request header word: 0x" << std::hex << hdr_buffer->
header << std::dec <<
", packet_count: " << hdr_buffer->packet_count <<
" from rank " << hdr_buffer->rank <<
", " << inet_ntoa(from.sin_addr) <<
":" << from.sin_port <<
", run number: " << hdr_buffer->run_number;
244 if (!hdr_buffer->isValid())
249 request_received_ =
true;
252 if (run_number_ != 0 && hdr_buffer->run_number != run_number_)
254 TLOG(TLVL_WARNING) <<
"Received a Request Message with the wrong run number ("
255 << hdr_buffer->run_number <<
"), expected " << run_number_
256 <<
", ignoring this request.";
262 TLOG(TLVL_INFO) <<
"Received Request Message with the EndOfRun marker. (Re)Starting 1-second timeout for receiving all outstanding requests...";
263 request_stop_timeout_ = std::chrono::steady_clock::now();
264 request_stop_requested_ =
true;
267 std::vector<artdaq::detail::RequestPacket> pkt_buffer(hdr_buffer->packet_count);
275 for (
auto& buffer : pkt_buffer)
277 TLOG(20) <<
"Request Packet: hdr=" << buffer.header <<
", seq=" << buffer.sequence_id <<
", ts=" << buffer.timestamp;
278 if (!buffer.isValid())
continue;
279 requests_->push(buffer.sequence_id, buffer.timestamp);
282 TLOG(TLVL_DEBUG) <<
"Ending Request Thread";
284 requests_->setRunning(
false);
int ResolveHost(char const *host_in, in_addr &addr)
Convert a string hostname to a in_addr suitable for socket communication.
void startRequestReception()
Enables (starts) the reception of data requests.
End of Run mode (Used to end request processing on receiver)
RequestReceiver()
RequestReceiver Default Constructor.
int GetInterfaceForNetwork(char const *host_in, in_addr &addr)
Convert an IP address to the network address of the interface sharing the subnet mask.
void setupRequestListener()
Opens the socket used to listen for data requests.
void receiveRequestsLoop()
This function receives data request packets, adding new requests to the request list.
The RequestPacket contains information about a single data request.
virtual ~RequestReceiver()
RequestReceiver Destructor.
void stopRequestReception(bool force=false)
Disables (stops) the reception of data requests.