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-rw-r--r--lib/RemoteControl.cpp18
-rw-r--r--lib/Socket.cpp154
-rw-r--r--lib/Socket.h65
-rw-r--r--lib/edi/ETIDecoder.cpp6
-rw-r--r--lib/edi/ETIDecoder.hpp6
-rw-r--r--lib/edi/PFT.cpp40
-rw-r--r--lib/edi/PFT.hpp7
-rw-r--r--lib/edi/README.md2
-rw-r--r--lib/edi/common.cpp31
-rw-r--r--lib/edi/common.hpp16
-rw-r--r--lib/zmq.hpp2120
11 files changed, 2347 insertions, 118 deletions
diff --git a/lib/RemoteControl.cpp b/lib/RemoteControl.cpp
index 4adb90c..9ca8d22 100644
--- a/lib/RemoteControl.cpp
+++ b/lib/RemoteControl.cpp
@@ -29,6 +29,7 @@
#include <algorithm>
#include "RemoteControl.h"
+#include "zmq.hpp"
using namespace std;
@@ -424,7 +425,7 @@ void RemoteControllerZmq::recv_all(zmq::socket_t& pSocket, std::vector<std::stri
bool more = true;
do {
zmq::message_t msg;
- pSocket.recv(&msg);
+ pSocket.recv(msg);
std::string incoming((char*)msg.data(), msg.size());
message.push_back(incoming);
more = msg.more();
@@ -436,7 +437,7 @@ void RemoteControllerZmq::send_ok_reply(zmq::socket_t &pSocket)
zmq::message_t msg(2);
char repCode[2] = {'o', 'k'};
memcpy ((void*) msg.data(), repCode, 2);
- pSocket.send(msg, 0);
+ pSocket.send(msg, zmq::send_flags::none);
}
void RemoteControllerZmq::send_fail_reply(zmq::socket_t &pSocket, const std::string &error)
@@ -444,11 +445,11 @@ void RemoteControllerZmq::send_fail_reply(zmq::socket_t &pSocket, const std::str
zmq::message_t msg1(4);
char repCode[4] = {'f', 'a', 'i', 'l'};
memcpy ((void*) msg1.data(), repCode, 4);
- pSocket.send(msg1, ZMQ_SNDMORE);
+ pSocket.send(msg1, zmq::send_flags::sndmore);
zmq::message_t msg2(error.length());
memcpy ((void*) msg2.data(), error.c_str(), error.length());
- pSocket.send(msg2, 0);
+ pSocket.send(msg2, zmq::send_flags::none);
}
void RemoteControllerZmq::process()
@@ -508,8 +509,7 @@ void RemoteControllerZmq::process()
zmq::message_t zmsg(ss.str().size());
memcpy ((void*) zmsg.data(), msg_s.data(), msg_s.size());
- int flag = (--cohort_size > 0) ? ZMQ_SNDMORE : 0;
- repSocket.send(zmsg, flag);
+ repSocket.send(zmsg, (--cohort_size > 0) ? zmq::send_flags::sndmore : zmq::send_flags::none);
}
}
else if (msg.size() == 2 && command == "show") {
@@ -523,8 +523,7 @@ void RemoteControllerZmq::process()
zmq::message_t zmsg(ss.str().size());
memcpy(zmsg.data(), ss.str().data(), ss.str().size());
- int flag = (--r_size > 0) ? ZMQ_SNDMORE : 0;
- repSocket.send(zmsg, flag);
+ repSocket.send(zmsg, (--r_size > 0) ? zmq::send_flags::sndmore : zmq::send_flags::none);
}
}
catch (const ParameterError &err) {
@@ -539,7 +538,7 @@ void RemoteControllerZmq::process()
std::string value = rcs.get_param(module, parameter);
zmq::message_t zmsg(value.size());
memcpy ((void*) zmsg.data(), value.data(), value.size());
- repSocket.send(zmsg, 0);
+ repSocket.send(zmsg, zmq::send_flags::none);
}
catch (const ParameterError &err) {
send_fail_reply(repSocket, err.what());
@@ -576,4 +575,3 @@ void RemoteControllerZmq::process()
}
#endif
-
diff --git a/lib/Socket.cpp b/lib/Socket.cpp
index d41ed1c..c876f32 100644
--- a/lib/Socket.cpp
+++ b/lib/Socket.cpp
@@ -66,6 +66,18 @@ void InetAddress::resolveUdpDestination(const std::string& destination, int port
}
}
+string InetAddress::to_string() const
+{
+ char received_from_str[64] = {};
+ sockaddr *addr = reinterpret_cast<sockaddr*>(&addr);
+ const char* ret = inet_ntop(AF_INET, addr, received_from_str, 63);
+
+ if (ret == nullptr) {
+ throw invalid_argument(string("Error converting InetAddress") + strerror(errno));
+ }
+ return ret;
+}
+
UDPPacket::UDPPacket() { }
UDPPacket::UDPPacket(size_t initSize) :
@@ -74,24 +86,37 @@ UDPPacket::UDPPacket(size_t initSize) :
{ }
-UDPSocket::UDPSocket() :
- m_sock(INVALID_SOCKET)
+UDPSocket::UDPSocket()
{
reinit(0, "");
}
-UDPSocket::UDPSocket(int port) :
- m_sock(INVALID_SOCKET)
+UDPSocket::UDPSocket(int port)
{
reinit(port, "");
}
-UDPSocket::UDPSocket(int port, const std::string& name) :
- m_sock(INVALID_SOCKET)
+UDPSocket::UDPSocket(int port, const std::string& name)
{
reinit(port, name);
}
+UDPSocket::UDPSocket(UDPSocket&& other)
+{
+ m_sock = other.m_sock;
+ m_port = other.m_port;
+ other.m_port = 0;
+ other.m_sock = INVALID_SOCKET;
+}
+
+const UDPSocket& UDPSocket::operator=(UDPSocket&& other)
+{
+ m_sock = other.m_sock;
+ m_port = other.m_port;
+ other.m_port = 0;
+ other.m_sock = INVALID_SOCKET;
+ return *this;
+}
void UDPSocket::setBlocking(bool block)
{
@@ -112,6 +137,8 @@ void UDPSocket::reinit(int port, const std::string& name)
::close(m_sock);
}
+ m_port = port;
+
if (port == 0) {
// No need to bind to a given port, creating the
// socket is enough
@@ -276,72 +303,71 @@ void UDPSocket::setMulticastTTL(int ttl)
}
}
-UDPReceiver::UDPReceiver() { }
-
-UDPReceiver::~UDPReceiver() {
- m_stop = true;
- m_sock.close();
- if (m_thread.joinable()) {
- m_thread.join();
- }
+SOCKET UDPSocket::getNativeSocket() const
+{
+ return m_sock;
}
-void UDPReceiver::start(int port, const string& bindto, const string& mcastaddr, size_t max_packets_queued) {
- m_port = port;
- m_bindto = bindto;
- m_mcastaddr = mcastaddr;
- m_max_packets_queued = max_packets_queued;
- m_thread = std::thread(&UDPReceiver::m_run, this);
+int UDPSocket::getPort() const
+{
+ return m_port;
}
-std::vector<uint8_t> UDPReceiver::get_packet_buffer()
-{
- if (m_stop) {
- throw runtime_error("UDP Receiver not running");
- }
+void UDPReceiver::add_receive_port(int port, const string& bindto, const string& mcastaddr) {
+ UDPSocket sock;
- UDPPacket p;
- m_packets.wait_and_pop(p);
+ if (IN_MULTICAST(ntohl(inet_addr(mcastaddr.c_str())))) {
+ sock.reinit(port, mcastaddr);
+ sock.setMulticastSource(bindto.c_str());
+ sock.joinGroup(mcastaddr.c_str(), bindto.c_str());
+ }
+ else {
+ sock.reinit(port, bindto);
+ }
- return p.buffer;
+ m_sockets.push_back(move(sock));
}
-void UDPReceiver::m_run()
+vector<UDPReceiver::ReceivedPacket> UDPReceiver::receive(int timeout_ms)
{
- // Ensure that stop is set to true in case of exception or return
- struct SetStopOnDestruct {
- SetStopOnDestruct(atomic<bool>& stop) : m_stop(stop) {}
- ~SetStopOnDestruct() { m_stop = true; }
- private: atomic<bool>& m_stop;
- } autoSetStop(m_stop);
-
- if (IN_MULTICAST(ntohl(inet_addr(m_mcastaddr.c_str())))) {
- m_sock.reinit(m_port, m_mcastaddr);
- m_sock.setMulticastSource(m_bindto.c_str());
- m_sock.joinGroup(m_mcastaddr.c_str(), m_bindto.c_str());
+ constexpr size_t MAX_FDS = 64;
+ struct pollfd fds[MAX_FDS];
+ if (m_sockets.size() > MAX_FDS) {
+ throw std::runtime_error("UDPReceiver only supports up to 64 ports");
}
- else {
- m_sock.reinit(m_port, m_bindto);
+
+ for (size_t i = 0; i < m_sockets.size(); i++) {
+ fds[i].fd = m_sockets[i].getNativeSocket();
+ fds[i].events = POLLIN;
}
- while (not m_stop) {
- constexpr size_t packsize = 8192;
- try {
- auto packet = m_sock.receive(packsize);
- if (packet.buffer.size() == packsize) {
- // TODO replace fprintf
- fprintf(stderr, "Warning, possible UDP truncation\n");
- }
+ int retval = poll(fds, m_sockets.size(), timeout_ms);
- // If this blocks, the UDP socket will lose incoming packets
- m_packets.push_wait_if_full(packet, m_max_packets_queued);
- }
- catch (const std::runtime_error& e) {
- // TODO replace fprintf
- // TODO handle intr
- fprintf(stderr, "Socket error: %s\n", e.what());
- m_stop = true;
+ if (retval == -1 and errno == EINTR) {
+ throw Interrupted();
+ }
+ else if (retval == -1) {
+ std::string errstr(strerror(errno));
+ throw std::runtime_error("UDP receive with poll() error: " + errstr);
+ }
+ else if (retval > 0) {
+ vector<ReceivedPacket> received;
+
+ for (size_t i = 0; i < m_sockets.size(); i++) {
+ if (fds[i].revents & POLLIN) {
+ auto p = m_sockets[i].receive(2048); // This is larger than the usual MTU
+ ReceivedPacket rp;
+ rp.packetdata = move(p.buffer);
+ rp.received_from = move(p.address);
+ rp.port_received_on = m_sockets[i].getPort();
+ received.push_back(move(rp));
+ }
}
+
+ return received;
+ }
+ else {
+ throw Timeout();
}
}
@@ -862,9 +888,9 @@ TCPReceiveServer::~TCPReceiveServer()
}
}
-vector<uint8_t> TCPReceiveServer::receive()
+shared_ptr<TCPReceiveMessage> TCPReceiveServer::receive()
{
- vector<uint8_t> buffer;
+ shared_ptr<TCPReceiveMessage> buffer = make_shared<TCPReceiveMessageEmpty>();
m_queue.try_pop(buffer);
// we can ignore try_pop()'s return value, because
@@ -892,11 +918,12 @@ void TCPReceiveServer::process()
}
else if (r == 0) {
sock.close();
+ m_queue.push(make_shared<TCPReceiveMessageDisconnected>());
break;
}
else {
buf.resize(r);
- m_queue.push(move(buf));
+ m_queue.push(make_shared<TCPReceiveMessageData>(move(buf)));
}
}
catch (const TCPSocket::Interrupted&) {
@@ -905,6 +932,11 @@ void TCPReceiveServer::process()
catch (const TCPSocket::Timeout&) {
num_timeouts++;
}
+ catch (const runtime_error& e) {
+ sock.close();
+ // TODO replace fprintf
+ fprintf(stderr, "TCP Receiver restarted after error: %s\n", e.what());
+ }
if (num_timeouts > max_num_timeouts) {
sock.close();
diff --git a/lib/Socket.h b/lib/Socket.h
index 8881be3..33cdc05 100644
--- a/lib/Socket.h
+++ b/lib/Socket.h
@@ -30,11 +30,12 @@
#include "ThreadsafeQueue.h"
#include <cstdlib>
-#include <iostream>
-#include <vector>
#include <atomic>
-#include <thread>
+#include <iostream>
#include <list>
+#include <memory>
+#include <thread>
+#include <vector>
#include <sys/socket.h>
#include <netinet/in.h>
@@ -55,6 +56,8 @@ struct InetAddress {
struct sockaddr *as_sockaddr() { return reinterpret_cast<sockaddr*>(&addr); };
void resolveUdpDestination(const std::string& destination, int port);
+
+ std::string to_string() const;
};
/** This class represents a UDP packet.
@@ -102,6 +105,8 @@ class UDPSocket
~UDPSocket();
UDPSocket(const UDPSocket& other) = delete;
const UDPSocket& operator=(const UDPSocket& other) = delete;
+ UDPSocket(UDPSocket&& other);
+ const UDPSocket& operator=(UDPSocket&& other);
/** Close the already open socket, and create a new one. Throws a runtime_error on error. */
void reinit(int port);
@@ -120,36 +125,36 @@ class UDPSocket
*/
void setBlocking(bool block);
+ SOCKET getNativeSocket() const;
+ int getPort() const;
+
protected:
- SOCKET m_sock;
+ SOCKET m_sock = INVALID_SOCKET;
+ int m_port = 0;
};
-/* Threaded UDP receiver */
+/* UDP packet receiver supporting receiving from several ports at once */
class UDPReceiver {
public:
- UDPReceiver();
- ~UDPReceiver();
- UDPReceiver(const UDPReceiver&) = delete;
- UDPReceiver operator=(const UDPReceiver&) = delete;
+ void add_receive_port(int port, const std::string& bindto, const std::string& mcastaddr);
- // Start the receiver in a separate thread
- void start(int port, const std::string& bindto, const std::string& mcastaddr, size_t max_packets_queued);
+ struct ReceivedPacket {
+ std::vector<uint8_t> packetdata;
+ InetAddress received_from;
+ int port_received_on;
+ };
- // Get the data contained in a UDP packet, blocks if none available
- // In case of error, throws a runtime_error
- std::vector<uint8_t> get_packet_buffer(void);
+ class Interrupted {};
+ class Timeout {};
+ /* Returns one or several packets,
+ * throws a Timeout on timeout, Interrupted on EINTR, a runtime_error
+ * on error. */
+ std::vector<ReceivedPacket> receive(int timeout_ms);
private:
void m_run(void);
- int m_port = 0;
- std::string m_bindto;
- std::string m_mcastaddr;
- size_t m_max_packets_queued = 1;
- std::thread m_thread;
- std::atomic<bool> m_stop = ATOMIC_VAR_INIT(false);
- ThreadsafeQueue<UDPPacket> m_packets;
- UDPSocket m_sock;
+ std::vector<UDPSocket> m_sockets;
};
class TCPSocket {
@@ -265,6 +270,14 @@ class TCPDataDispatcher
std::list<TCPConnection> m_connections;
};
+struct TCPReceiveMessage { virtual ~TCPReceiveMessage() {}; };
+struct TCPReceiveMessageDisconnected : public TCPReceiveMessage { };
+struct TCPReceiveMessageEmpty : public TCPReceiveMessage { };
+struct TCPReceiveMessageData : public TCPReceiveMessage {
+ TCPReceiveMessageData(std::vector<uint8_t> d) : data(d) {};
+ std::vector<uint8_t> data;
+};
+
/* A TCP Server to receive data, which abstracts the handling of connects and disconnects.
*/
class TCPReceiveServer {
@@ -276,15 +289,15 @@ class TCPReceiveServer {
void start(int listen_port, const std::string& address);
- // Return a vector that contains up to blocksize bytes of data, or
- // and empty vector if no data is available.
- std::vector<uint8_t> receive();
+ // Return an instance of a subclass of TCPReceiveMessage that contains up to blocksize
+ // bytes of data, or TCPReceiveMessageEmpty if no data is available.
+ std::shared_ptr<TCPReceiveMessage> receive();
private:
void process();
size_t m_blocksize = 0;
- ThreadsafeQueue<std::vector<uint8_t> > m_queue;
+ ThreadsafeQueue<std::shared_ptr<TCPReceiveMessage> > m_queue;
std::atomic<bool> m_running = ATOMIC_VAR_INIT(false);
std::string m_exception_data;
std::thread m_listener_thread;
diff --git a/lib/edi/ETIDecoder.cpp b/lib/edi/ETIDecoder.cpp
index 88a7333..656f50b 100644
--- a/lib/edi/ETIDecoder.cpp
+++ b/lib/edi/ETIDecoder.cpp
@@ -57,9 +57,9 @@ void ETIDecoder::push_bytes(const vector<uint8_t> &buf)
m_dispatcher.push_bytes(buf);
}
-void ETIDecoder::push_packet(const vector<uint8_t> &buf)
+void ETIDecoder::push_packet(Packet& pack)
{
- m_dispatcher.push_packet(buf);
+ m_dispatcher.push_packet(pack);
}
void ETIDecoder::setMaxDelay(int num_af_packets)
@@ -107,7 +107,7 @@ bool ETIDecoder::decode_deti(const std::vector<uint8_t>& value, const tag_name_t
uint8_t fcth = (detiHeader >> 8) & 0x1F;
uint8_t fct = detiHeader & 0xFF;
- fc.dflc = fcth * 250 + fct; // modulo 5000 counter
+ fc.dlfc = fcth * 250 + fct; // modulo 5000 counter
uint32_t etiHeader = read_32b(value.begin() + 2);
diff --git a/lib/edi/ETIDecoder.hpp b/lib/edi/ETIDecoder.hpp
index ffa9037..e0865ce 100644
--- a/lib/edi/ETIDecoder.hpp
+++ b/lib/edi/ETIDecoder.hpp
@@ -38,11 +38,11 @@ struct eti_fc_data {
bool atstf;
uint32_t tsta;
bool ficf;
- uint16_t dflc;
+ uint16_t dlfc;
uint8_t mid;
uint8_t fp;
- uint8_t fct(void) const { return dflc % 250; }
+ uint8_t fct(void) const { return dlfc % 250; }
};
// Information for a subchannel available in EDI
@@ -119,7 +119,7 @@ class ETIDecoder {
/* Push a complete packet into the decoder. Useful for UDP and other
* datagram-oriented protocols.
*/
- void push_packet(const std::vector<uint8_t> &buf);
+ void push_packet(Packet &pack);
/* Set the maximum delay in number of AF Packets before we
* abandon decoding a given pseq.
diff --git a/lib/edi/PFT.cpp b/lib/edi/PFT.cpp
index 158b206..85d6b63 100644
--- a/lib/edi/PFT.cpp
+++ b/lib/edi/PFT.cpp
@@ -23,6 +23,7 @@
#include <cstdio>
#include <cassert>
#include <cstring>
+#include <cmath>
#include <sstream>
#include <stdexcept>
#include <algorithm>
@@ -109,11 +110,18 @@ class FECDecoder {
size_t Fragment::loadData(const std::vector<uint8_t> &buf)
{
+ return loadData(buf, 0);
+}
+
+size_t Fragment::loadData(const std::vector<uint8_t> &buf, int received_on_port)
+{
const size_t header_len = 14;
if (buf.size() < header_len) {
return 0;
}
+ this->received_on_port = received_on_port;
+
size_t index = 0;
// Parse PFT Fragment Header (ETSI TS 102 821 V1.4.1 ch7.1)
@@ -461,6 +469,32 @@ std::string AFBuilder::visualise() const
return ss.str();
}
+std::string AFBuilder::visualise_fragment_origins() const
+{
+ stringstream ss;
+ if (_fragments.size() == 0) {
+ return "No fragments";
+ }
+ else {
+ ss << _fragments.size() << " fragments: ";
+ }
+
+ std::map<int, size_t> port_count;
+
+ for (const auto& f : _fragments) {
+ port_count[f.second.received_on_port]++;
+ }
+
+ for (const auto& p : port_count) {
+ ss << "p" << p.first << " " <<
+ std::round(100.0 * ((double)p.second) / (double)_fragments.size()) << "% ";
+ }
+
+ ss << "\n";
+
+ return ss.str();
+}
+
void PFT::pushPFTFrag(const Fragment &fragment)
{
// Start decoding the first pseq we receive. In normal
@@ -518,6 +552,9 @@ std::vector<uint8_t> PFT::getNextAFPacket()
if (builder.canAttemptToDecode() == dar_t::yes) {
auto afpacket = builder.extractAF();
assert(not afpacket.empty());
+ if (m_verbose) {
+ etiLog.level(debug) << "Fragment origin stats: " << builder.visualise_fragment_origins();
+ }
incrementNextPseq();
return afpacket;
}
@@ -533,6 +570,9 @@ std::vector<uint8_t> PFT::getNextAFPacket()
if (afpacket.empty()) {
etiLog.log(debug,"pseq %d timed out after RS", m_next_pseq);
}
+ if (m_verbose) {
+ etiLog.level(debug) << "Fragment origin stats: " << builder.visualise_fragment_origins();
+ }
incrementNextPseq();
return afpacket;
}
diff --git a/lib/edi/PFT.hpp b/lib/edi/PFT.hpp
index 208fd70..08dca45 100644
--- a/lib/edi/PFT.hpp
+++ b/lib/edi/PFT.hpp
@@ -36,11 +36,14 @@ using findex_t = uint32_t; // findex is a 24-bit value
class Fragment
{
public:
+ int received_on_port = 0;
+
// Load the data for one fragment from buf into
// the Fragment.
// \returns the number of bytes of useful data found in buf
// A non-zero return value doesn't imply a valid fragment
// the isValid() method must be used to verify this.
+ size_t loadData(const std::vector<uint8_t> &buf, int received_on_port);
size_t loadData(const std::vector<uint8_t> &buf);
bool isValid() const { return _valid; }
@@ -111,7 +114,9 @@ class AFBuilder
return {_fragments.size(), _Fcount};
}
- std::string visualise(void) const;
+ std::string visualise() const;
+
+ std::string visualise_fragment_origins() const;
/* The user of this instance can keep track of the lifetime of this
* builder
diff --git a/lib/edi/README.md b/lib/edi/README.md
index b6ab67a..535a65c 100644
--- a/lib/edi/README.md
+++ b/lib/edi/README.md
@@ -1 +1 @@
-These files are copied from the odr-edilib project.
+These files are copied from the common ODR code repository.
diff --git a/lib/edi/common.cpp b/lib/edi/common.cpp
index 306261a..7907656 100644
--- a/lib/edi/common.cpp
+++ b/lib/edi/common.cpp
@@ -22,6 +22,7 @@
#include "buffer_unpack.hpp"
#include "Log.h"
#include "crc.h"
+#include <algorithm>
#include <sstream>
#include <cassert>
#include <cmath>
@@ -142,6 +143,12 @@ void TagDispatcher::set_verbose(bool verbose)
void TagDispatcher::push_bytes(const vector<uint8_t> &buf)
{
+ if (buf.empty()) {
+ m_input_data.clear();
+ m_last_seq_valid = false;
+ return;
+ }
+
copy(buf.begin(), buf.end(), back_inserter(m_input_data));
while (m_input_data.size() > 2) {
@@ -194,14 +201,16 @@ void TagDispatcher::push_bytes(const vector<uint8_t> &buf)
}
}
else {
- etiLog.log(warn,"Unknown %c!", *m_input_data.data());
+ etiLog.log(warn, "Unknown 0x%02x!", *m_input_data.data());
m_input_data.erase(m_input_data.begin());
}
}
}
-void TagDispatcher::push_packet(const vector<uint8_t> &buf)
+void TagDispatcher::push_packet(const Packet &packet)
{
+ auto& buf = packet.buf;
+
if (buf.size() < 2) {
throw std::invalid_argument("Not enough bytes to read EDI packet header");
}
@@ -216,7 +225,7 @@ void TagDispatcher::push_packet(const vector<uint8_t> &buf)
}
else if (buf[0] == 'P' and buf[1] == 'F') {
PFT::Fragment fragment;
- fragment.loadData(buf);
+ fragment.loadData(buf, packet.received_on_port);
if (fragment.isValid()) {
m_pft.pushPFTFrag(fragment);
@@ -232,11 +241,10 @@ void TagDispatcher::push_packet(const vector<uint8_t> &buf)
}
}
else {
- const char packettype[3] = {(char)buf[0], (char)buf[1], '\0'};
std::stringstream ss;
- ss << "Unknown EDI packet ";
- ss << packettype;
- throw std::invalid_argument(ss.str());
+ ss << "Unknown EDI packet " << std::hex << (int)buf[0] << " " << (int)buf[1];
+ m_ignored_tags.clear();
+ throw invalid_argument(ss.str());
}
}
@@ -268,6 +276,7 @@ decode_state_t TagDispatcher::decode_afpacket(
const uint16_t expected_seq = m_last_seq + 1;
if (expected_seq != seq) {
etiLog.level(warn) << "EDI AF Packet sequence error, " << seq;
+ m_ignored_tags.clear();
}
}
else {
@@ -303,8 +312,7 @@ decode_state_t TagDispatcher::decode_afpacket(
uint16_t packet_crc = read_16b(input_data.begin() + AFPACKET_HEADER_LEN + taglength);
if (packet_crc != crc) {
- throw invalid_argument(
- "AF Packet crc wrong");
+ throw invalid_argument("AF Packet crc wrong");
}
else {
vector<uint8_t> payload(taglength);
@@ -379,7 +387,10 @@ bool TagDispatcher::decode_tagpacket(const vector<uint8_t> &payload)
}
if (not found) {
- etiLog.log(warn, "Ignoring unknown TAG %s", tag.c_str());
+ if (std::find(m_ignored_tags.begin(), m_ignored_tags.end(), tag) == m_ignored_tags.end()) {
+ etiLog.log(warn, "Ignoring unknown TAG %s", tag.c_str());
+ m_ignored_tags.push_back(tag);
+ }
break;
}
diff --git a/lib/edi/common.hpp b/lib/edi/common.hpp
index c8c4bb3..14b91ba 100644
--- a/lib/edi/common.hpp
+++ b/lib/edi/common.hpp
@@ -60,6 +60,14 @@ using tag_name_t = std::array<uint8_t, 4>;
std::string tag_name_to_human_readable(const tag_name_t& name);
+struct Packet {
+ std::vector<uint8_t> buf;
+ int received_on_port;
+
+ Packet(std::vector<uint8_t>&& b) : buf(b), received_on_port(0) { }
+ Packet() {}
+};
+
/* The TagDispatcher takes care of decoding EDI, with or without PFT, and
* will call functions when TAGs are encountered.
*
@@ -72,17 +80,17 @@ class TagDispatcher {
void set_verbose(bool verbose);
-
/* Push bytes into the decoder. The buf can contain more
* than a single packet. This is useful when reading from streams
- * (files, TCP)
+ * (files, TCP). Pushing an empty buf will clear the internal decoder
+ * state to ensure realignment (e.g. on stream reconnection)
*/
void push_bytes(const std::vector<uint8_t> &buf);
/* Push a complete packet into the decoder. Useful for UDP and other
* datagram-oriented protocols.
*/
- void push_packet(const std::vector<uint8_t> &buf);
+ void push_packet(const Packet &packet);
/* Set the maximum delay in number of AF Packets before we
* abandon decoding a given pseq.
@@ -113,6 +121,8 @@ class TagDispatcher {
std::map<std::string, tag_handler> m_handlers;
std::function<void()> m_af_packet_completed;
tagpacket_handler m_tagpacket_handler;
+
+ std::vector<std::string> m_ignored_tags;
};
// Data carried inside the ODRv EDI TAG
diff --git a/lib/zmq.hpp b/lib/zmq.hpp
new file mode 100644
index 0000000..74a0574
--- /dev/null
+++ b/lib/zmq.hpp
@@ -0,0 +1,2120 @@
+/*
+ Copyright (c) 2016-2017 ZeroMQ community
+ Copyright (c) 2009-2011 250bpm s.r.o.
+ Copyright (c) 2011 Botond Ballo
+ Copyright (c) 2007-2009 iMatix Corporation
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to
+ deal in the Software without restriction, including without limitation the
+ rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ sell copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ IN THE SOFTWARE.
+*/
+
+#ifndef __ZMQ_HPP_INCLUDED__
+#define __ZMQ_HPP_INCLUDED__
+
+// macros defined if has a specific standard or greater
+#if (defined(__cplusplus) && __cplusplus >= 201103L) || (defined(_MSC_VER) && _MSC_VER >= 1900)
+ #define ZMQ_CPP11
+#endif
+#if (defined(__cplusplus) && __cplusplus >= 201402L) || \
+ (defined(_HAS_CXX14) && _HAS_CXX14 == 1) || \
+ (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // _HAS_CXX14 might not be defined when using C++17 on MSVC
+ #define ZMQ_CPP14
+#endif
+#if (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1)
+ #define ZMQ_CPP17
+#endif
+
+#if defined(ZMQ_CPP14)
+#define ZMQ_DEPRECATED(msg) [[deprecated(msg)]]
+#elif defined(_MSC_VER)
+#define ZMQ_DEPRECATED(msg) __declspec(deprecated(msg))
+#elif defined(__GNUC__)
+#define ZMQ_DEPRECATED(msg) __attribute__((deprecated(msg)))
+#endif
+
+#if defined(ZMQ_CPP17)
+#define ZMQ_NODISCARD [[nodiscard]]
+#else
+#define ZMQ_NODISCARD
+#endif
+
+#if defined(ZMQ_CPP11)
+#define ZMQ_NOTHROW noexcept
+#define ZMQ_EXPLICIT explicit
+#define ZMQ_OVERRIDE override
+#define ZMQ_NULLPTR nullptr
+#define ZMQ_CONSTEXPR_FN constexpr
+#define ZMQ_CONSTEXPR_VAR constexpr
+#else
+#define ZMQ_NOTHROW throw()
+#define ZMQ_EXPLICIT
+#define ZMQ_OVERRIDE
+#define ZMQ_NULLPTR 0
+#define ZMQ_CONSTEXPR_FN
+#define ZMQ_CONSTEXPR_VAR const
+#endif
+
+#include <zmq.h>
+
+#include <cassert>
+#include <cstring>
+
+#include <algorithm>
+#include <exception>
+#include <iomanip>
+#include <sstream>
+#include <string>
+#include <vector>
+#ifdef ZMQ_CPP11
+#include <array>
+#include <chrono>
+#include <tuple>
+#include <memory>
+#endif
+#ifdef ZMQ_CPP17
+#ifdef __has_include
+#if __has_include(<optional>)
+#include <optional>
+#define ZMQ_HAS_OPTIONAL 1
+#endif
+#if __has_include(<string_view>)
+#include <string_view>
+#define ZMQ_HAS_STRING_VIEW 1
+#endif
+#endif
+
+#endif
+
+/* Version macros for compile-time API version detection */
+#define CPPZMQ_VERSION_MAJOR 4
+#define CPPZMQ_VERSION_MINOR 6
+#define CPPZMQ_VERSION_PATCH 0
+
+#define CPPZMQ_VERSION \
+ ZMQ_MAKE_VERSION(CPPZMQ_VERSION_MAJOR, CPPZMQ_VERSION_MINOR, \
+ CPPZMQ_VERSION_PATCH)
+
+// Detect whether the compiler supports C++11 rvalue references.
+#if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 2)) \
+ && defined(__GXX_EXPERIMENTAL_CXX0X__))
+#define ZMQ_HAS_RVALUE_REFS
+#define ZMQ_DELETED_FUNCTION = delete
+#elif defined(__clang__)
+#if __has_feature(cxx_rvalue_references)
+#define ZMQ_HAS_RVALUE_REFS
+#endif
+
+#if __has_feature(cxx_deleted_functions)
+#define ZMQ_DELETED_FUNCTION = delete
+#else
+#define ZMQ_DELETED_FUNCTION
+#endif
+#elif defined(_MSC_VER) && (_MSC_VER >= 1900)
+#define ZMQ_HAS_RVALUE_REFS
+#define ZMQ_DELETED_FUNCTION = delete
+#elif defined(_MSC_VER) && (_MSC_VER >= 1600)
+#define ZMQ_HAS_RVALUE_REFS
+#define ZMQ_DELETED_FUNCTION
+#else
+#define ZMQ_DELETED_FUNCTION
+#endif
+
+#if defined(ZMQ_CPP11) && !defined(__llvm__) && !defined(__INTEL_COMPILER) \
+ && defined(__GNUC__) && __GNUC__ < 5
+#define ZMQ_CPP11_PARTIAL
+#elif defined(__GLIBCXX__) && __GLIBCXX__ < 20160805
+//the date here is the last date of gcc 4.9.4, which
+// effectively means libstdc++ from gcc 5.5 and higher won't trigger this branch
+#define ZMQ_CPP11_PARTIAL
+#endif
+
+#ifdef ZMQ_CPP11
+#ifdef ZMQ_CPP11_PARTIAL
+#define ZMQ_IS_TRIVIALLY_COPYABLE(T) __has_trivial_copy(T)
+#else
+#include <type_traits>
+#define ZMQ_IS_TRIVIALLY_COPYABLE(T) std::is_trivially_copyable<T>::value
+#endif
+#endif
+
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(3, 3, 0)
+#define ZMQ_NEW_MONITOR_EVENT_LAYOUT
+#endif
+
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 1, 0)
+#define ZMQ_HAS_PROXY_STEERABLE
+/* Socket event data */
+typedef struct
+{
+ uint16_t event; // id of the event as bitfield
+ int32_t value; // value is either error code, fd or reconnect interval
+} zmq_event_t;
+#endif
+
+// Avoid using deprecated message receive function when possible
+#if ZMQ_VERSION < ZMQ_MAKE_VERSION(3, 2, 0)
+#define zmq_msg_recv(msg, socket, flags) zmq_recvmsg(socket, msg, flags)
+#endif
+
+
+// In order to prevent unused variable warnings when building in non-debug
+// mode use this macro to make assertions.
+#ifndef NDEBUG
+#define ZMQ_ASSERT(expression) assert(expression)
+#else
+#define ZMQ_ASSERT(expression) (void) (expression)
+#endif
+
+namespace zmq
+{
+
+#ifdef ZMQ_CPP11
+namespace detail
+{
+namespace ranges
+{
+using std::begin;
+using std::end;
+template<class T>
+auto begin(T&& r) -> decltype(begin(std::forward<T>(r)))
+{
+ return begin(std::forward<T>(r));
+}
+template<class T>
+auto end(T&& r) -> decltype(end(std::forward<T>(r)))
+{
+ return end(std::forward<T>(r));
+}
+} // namespace ranges
+
+template<class T> using void_t = void;
+
+template<class Iter>
+using iter_value_t = typename std::iterator_traits<Iter>::value_type;
+
+template<class Range>
+using range_iter_t = decltype(
+ ranges::begin(std::declval<typename std::remove_reference<Range>::type &>()));
+
+template<class Range>
+using range_value_t = iter_value_t<range_iter_t<Range>>;
+
+template<class T, class = void> struct is_range : std::false_type
+{
+};
+
+template<class T>
+struct is_range<
+ T,
+ void_t<decltype(
+ ranges::begin(std::declval<typename std::remove_reference<T>::type &>())
+ == ranges::end(std::declval<typename std::remove_reference<T>::type &>()))>>
+ : std::true_type
+{
+};
+
+} // namespace detail
+#endif
+
+typedef zmq_free_fn free_fn;
+typedef zmq_pollitem_t pollitem_t;
+
+class error_t : public std::exception
+{
+ public:
+ error_t() : errnum(zmq_errno()) {}
+ virtual const char *what() const ZMQ_NOTHROW ZMQ_OVERRIDE { return zmq_strerror(errnum); }
+ int num() const { return errnum; }
+
+ private:
+ int errnum;
+};
+
+inline int poll(zmq_pollitem_t *items_, size_t nitems_, long timeout_ = -1)
+{
+ int rc = zmq_poll(items_, static_cast<int>(nitems_), timeout_);
+ if (rc < 0)
+ throw error_t();
+ return rc;
+}
+
+ZMQ_DEPRECATED("from 4.3.1, use poll taking non-const items")
+inline int poll(zmq_pollitem_t const *items_, size_t nitems_, long timeout_ = -1)
+{
+ return poll(const_cast<zmq_pollitem_t *>(items_), nitems_, timeout_);
+}
+
+#ifdef ZMQ_CPP11
+ZMQ_DEPRECATED("from 4.3.1, use poll taking non-const items")
+inline int
+poll(zmq_pollitem_t const *items, size_t nitems, std::chrono::milliseconds timeout)
+{
+ return poll(const_cast<zmq_pollitem_t *>(items), nitems, static_cast<long>(timeout.count()));
+}
+
+ZMQ_DEPRECATED("from 4.3.1, use poll taking non-const items")
+inline int poll(std::vector<zmq_pollitem_t> const &items,
+ std::chrono::milliseconds timeout)
+{
+ return poll(const_cast<zmq_pollitem_t *>(items.data()), items.size(), static_cast<long>(timeout.count()));
+}
+
+ZMQ_DEPRECATED("from 4.3.1, use poll taking non-const items")
+inline int poll(std::vector<zmq_pollitem_t> const &items, long timeout_ = -1)
+{
+ return poll(const_cast<zmq_pollitem_t *>(items.data()), items.size(), timeout_);
+}
+
+inline int
+poll(zmq_pollitem_t *items, size_t nitems, std::chrono::milliseconds timeout)
+{
+ return poll(items, nitems, static_cast<long>(timeout.count()));
+}
+
+inline int poll(std::vector<zmq_pollitem_t> &items,
+ std::chrono::milliseconds timeout)
+{
+ return poll(items.data(), items.size(), static_cast<long>(timeout.count()));
+}
+
+inline int poll(std::vector<zmq_pollitem_t> &items, long timeout_ = -1)
+{
+ return poll(items.data(), items.size(), timeout_);
+}
+#endif
+
+
+inline void version(int *major_, int *minor_, int *patch_)
+{
+ zmq_version(major_, minor_, patch_);
+}
+
+#ifdef ZMQ_CPP11
+inline std::tuple<int, int, int> version()
+{
+ std::tuple<int, int, int> v;
+ zmq_version(&std::get<0>(v), &std::get<1>(v), &std::get<2>(v));
+ return v;
+}
+#endif
+
+class message_t
+{
+ public:
+ message_t() ZMQ_NOTHROW
+ {
+ int rc = zmq_msg_init(&msg);
+ ZMQ_ASSERT(rc == 0);
+ }
+
+ explicit message_t(size_t size_)
+ {
+ int rc = zmq_msg_init_size(&msg, size_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ template<class ForwardIter> message_t(ForwardIter first, ForwardIter last)
+ {
+ typedef typename std::iterator_traits<ForwardIter>::value_type value_t;
+
+ assert(std::distance(first, last) >= 0);
+ size_t const size_ =
+ static_cast<size_t>(std::distance(first, last)) * sizeof(value_t);
+ int const rc = zmq_msg_init_size(&msg, size_);
+ if (rc != 0)
+ throw error_t();
+ std::copy(first, last, data<value_t>());
+ }
+
+ message_t(const void *data_, size_t size_)
+ {
+ int rc = zmq_msg_init_size(&msg, size_);
+ if (rc != 0)
+ throw error_t();
+ memcpy(data(), data_, size_);
+ }
+
+ message_t(void *data_, size_t size_, free_fn *ffn_, void *hint_ = ZMQ_NULLPTR)
+ {
+ int rc = zmq_msg_init_data(&msg, data_, size_, ffn_, hint_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+#if defined(ZMQ_CPP11) && !defined(ZMQ_CPP11_PARTIAL)
+ template<class Range,
+ typename = typename std::enable_if<
+ detail::is_range<Range>::value
+ && ZMQ_IS_TRIVIALLY_COPYABLE(detail::range_value_t<Range>)
+ && !std::is_same<Range, message_t>::value>::type>
+ explicit message_t(const Range &rng) :
+ message_t(detail::ranges::begin(rng), detail::ranges::end(rng))
+ {
+ }
+#endif
+
+#ifdef ZMQ_HAS_RVALUE_REFS
+ message_t(message_t &&rhs) ZMQ_NOTHROW : msg(rhs.msg)
+ {
+ int rc = zmq_msg_init(&rhs.msg);
+ ZMQ_ASSERT(rc == 0);
+ }
+
+ message_t &operator=(message_t &&rhs) ZMQ_NOTHROW
+ {
+ std::swap(msg, rhs.msg);
+ return *this;
+ }
+#endif
+
+ ~message_t() ZMQ_NOTHROW
+ {
+ int rc = zmq_msg_close(&msg);
+ ZMQ_ASSERT(rc == 0);
+ }
+
+ void rebuild()
+ {
+ int rc = zmq_msg_close(&msg);
+ if (rc != 0)
+ throw error_t();
+ rc = zmq_msg_init(&msg);
+ ZMQ_ASSERT(rc == 0);
+ }
+
+ void rebuild(size_t size_)
+ {
+ int rc = zmq_msg_close(&msg);
+ if (rc != 0)
+ throw error_t();
+ rc = zmq_msg_init_size(&msg, size_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void rebuild(const void *data_, size_t size_)
+ {
+ int rc = zmq_msg_close(&msg);
+ if (rc != 0)
+ throw error_t();
+ rc = zmq_msg_init_size(&msg, size_);
+ if (rc != 0)
+ throw error_t();
+ memcpy(data(), data_, size_);
+ }
+
+ void rebuild(void *data_, size_t size_, free_fn *ffn_, void *hint_ = ZMQ_NULLPTR)
+ {
+ int rc = zmq_msg_close(&msg);
+ if (rc != 0)
+ throw error_t();
+ rc = zmq_msg_init_data(&msg, data_, size_, ffn_, hint_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ ZMQ_DEPRECATED("from 4.3.1, use move taking non-const reference instead")
+ void move(message_t const *msg_)
+ {
+ int rc = zmq_msg_move(&msg, const_cast<zmq_msg_t *>(msg_->handle()));
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void move(message_t &msg_)
+ {
+ int rc = zmq_msg_move(&msg, msg_.handle());
+ if (rc != 0)
+ throw error_t();
+ }
+
+ ZMQ_DEPRECATED("from 4.3.1, use copy taking non-const reference instead")
+ void copy(message_t const *msg_)
+ {
+ int rc = zmq_msg_copy(&msg, const_cast<zmq_msg_t *>(msg_->handle()));
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void copy(message_t &msg_)
+ {
+ int rc = zmq_msg_copy(&msg, msg_.handle());
+ if (rc != 0)
+ throw error_t();
+ }
+
+ bool more() const ZMQ_NOTHROW
+ {
+ int rc = zmq_msg_more(const_cast<zmq_msg_t *>(&msg));
+ return rc != 0;
+ }
+
+ void *data() ZMQ_NOTHROW { return zmq_msg_data(&msg); }
+
+ const void *data() const ZMQ_NOTHROW
+ {
+ return zmq_msg_data(const_cast<zmq_msg_t *>(&msg));
+ }
+
+ size_t size() const ZMQ_NOTHROW
+ {
+ return zmq_msg_size(const_cast<zmq_msg_t *>(&msg));
+ }
+
+ ZMQ_NODISCARD bool empty() const ZMQ_NOTHROW
+ {
+ return size() == 0u;
+ }
+
+ template<typename T> T *data() ZMQ_NOTHROW { return static_cast<T *>(data()); }
+
+ template<typename T> T const *data() const ZMQ_NOTHROW
+ {
+ return static_cast<T const *>(data());
+ }
+
+ ZMQ_DEPRECATED("from 4.3.0, use operator== instead")
+ bool equal(const message_t *other) const ZMQ_NOTHROW
+ {
+ return *this == *other;
+ }
+
+ bool operator==(const message_t &other) const ZMQ_NOTHROW
+ {
+ const size_t my_size = size();
+ return my_size == other.size() && 0 == memcmp(data(), other.data(), my_size);
+ }
+
+ bool operator!=(const message_t &other) const ZMQ_NOTHROW
+ {
+ return !(*this == other);
+ }
+
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(3, 2, 0)
+ int get(int property_)
+ {
+ int value = zmq_msg_get(&msg, property_);
+ if (value == -1)
+ throw error_t();
+ return value;
+ }
+#endif
+
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 1, 0)
+ const char *gets(const char *property_)
+ {
+ const char *value = zmq_msg_gets(&msg, property_);
+ if (value == ZMQ_NULLPTR)
+ throw error_t();
+ return value;
+ }
+#endif
+
+#if defined(ZMQ_BUILD_DRAFT_API) && ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 0)
+ uint32_t routing_id() const
+ {
+ return zmq_msg_routing_id(const_cast<zmq_msg_t*>(&msg));
+ }
+
+ void set_routing_id(uint32_t routing_id)
+ {
+ int rc = zmq_msg_set_routing_id(&msg, routing_id);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ const char* group() const
+ {
+ return zmq_msg_group(const_cast<zmq_msg_t*>(&msg));
+ }
+
+ void set_group(const char* group)
+ {
+ int rc = zmq_msg_set_group(&msg, group);
+ if (rc != 0)
+ throw error_t();
+ }
+#endif
+
+ // interpret message content as a string
+ std::string to_string() const
+ {
+ return std::string(static_cast<const char*>(data()), size());
+ }
+#ifdef ZMQ_CPP17
+ // interpret message content as a string
+ std::string_view to_string_view() const noexcept
+ {
+ return std::string_view(static_cast<const char*>(data()), size());
+ }
+#endif
+
+ /** Dump content to string for debugging.
+ * Ascii chars are readable, the rest is printed as hex.
+ * Probably ridiculously slow.
+ * Use to_string() or to_string_view() for
+ * interpreting the message as a string.
+ */
+ std::string str() const
+ {
+ // Partly mutuated from the same method in zmq::multipart_t
+ std::stringstream os;
+
+ const unsigned char *msg_data = this->data<unsigned char>();
+ unsigned char byte;
+ size_t size = this->size();
+ int is_ascii[2] = {0, 0};
+
+ os << "zmq::message_t [size " << std::dec << std::setw(3)
+ << std::setfill('0') << size << "] (";
+ // Totally arbitrary
+ if (size >= 1000) {
+ os << "... too big to print)";
+ } else {
+ while (size--) {
+ byte = *msg_data++;
+
+ is_ascii[1] = (byte >= 32 && byte < 127);
+ if (is_ascii[1] != is_ascii[0])
+ os << " "; // Separate text/non text
+
+ if (is_ascii[1]) {
+ os << byte;
+ } else {
+ os << std::hex << std::uppercase << std::setw(2)
+ << std::setfill('0') << static_cast<short>(byte);
+ }
+ is_ascii[0] = is_ascii[1];
+ }
+ os << ")";
+ }
+ return os.str();
+ }
+
+ void swap(message_t &other) ZMQ_NOTHROW
+ {
+ // this assumes zmq::msg_t from libzmq is trivially relocatable
+ std::swap(msg, other.msg);
+ }
+
+ ZMQ_NODISCARD zmq_msg_t *handle() ZMQ_NOTHROW { return &msg; }
+ ZMQ_NODISCARD const zmq_msg_t *handle() const ZMQ_NOTHROW { return &msg; }
+
+ private:
+ // The underlying message
+ zmq_msg_t msg;
+
+ // Disable implicit message copying, so that users won't use shared
+ // messages (less efficient) without being aware of the fact.
+ message_t(const message_t &) ZMQ_DELETED_FUNCTION;
+ void operator=(const message_t &) ZMQ_DELETED_FUNCTION;
+};
+
+inline void swap(message_t &a, message_t &b) ZMQ_NOTHROW
+{
+ a.swap(b);
+}
+
+class context_t
+{
+ public:
+ context_t()
+ {
+ ptr = zmq_ctx_new();
+ if (ptr == ZMQ_NULLPTR)
+ throw error_t();
+ }
+
+
+ explicit context_t(int io_threads_,
+ int max_sockets_ = ZMQ_MAX_SOCKETS_DFLT)
+ {
+ ptr = zmq_ctx_new();
+ if (ptr == ZMQ_NULLPTR)
+ throw error_t();
+
+ int rc = zmq_ctx_set(ptr, ZMQ_IO_THREADS, io_threads_);
+ ZMQ_ASSERT(rc == 0);
+
+ rc = zmq_ctx_set(ptr, ZMQ_MAX_SOCKETS, max_sockets_);
+ ZMQ_ASSERT(rc == 0);
+ }
+
+#ifdef ZMQ_HAS_RVALUE_REFS
+ context_t(context_t &&rhs) ZMQ_NOTHROW : ptr(rhs.ptr) { rhs.ptr = ZMQ_NULLPTR; }
+ context_t &operator=(context_t &&rhs) ZMQ_NOTHROW
+ {
+ close();
+ std::swap(ptr, rhs.ptr);
+ return *this;
+ }
+#endif
+
+ int setctxopt(int option_, int optval_)
+ {
+ int rc = zmq_ctx_set(ptr, option_, optval_);
+ ZMQ_ASSERT(rc == 0);
+ return rc;
+ }
+
+ int getctxopt(int option_) { return zmq_ctx_get(ptr, option_); }
+
+ ~context_t() ZMQ_NOTHROW { close(); }
+
+ void close() ZMQ_NOTHROW
+ {
+ if (ptr == ZMQ_NULLPTR)
+ return;
+
+ int rc;
+ do {
+ rc = zmq_ctx_destroy(ptr);
+ } while (rc == -1 && errno == EINTR);
+
+ ZMQ_ASSERT(rc == 0);
+ ptr = ZMQ_NULLPTR;
+ }
+
+ // Be careful with this, it's probably only useful for
+ // using the C api together with an existing C++ api.
+ // Normally you should never need to use this.
+ ZMQ_EXPLICIT operator void *() ZMQ_NOTHROW { return ptr; }
+
+ ZMQ_EXPLICIT operator void const *() const ZMQ_NOTHROW { return ptr; }
+
+ operator bool() const ZMQ_NOTHROW { return ptr != ZMQ_NULLPTR; }
+
+ void swap(context_t &other) ZMQ_NOTHROW
+ {
+ std::swap(ptr, other.ptr);
+ }
+
+ private:
+ void *ptr;
+
+ context_t(const context_t &) ZMQ_DELETED_FUNCTION;
+ void operator=(const context_t &) ZMQ_DELETED_FUNCTION;
+};
+
+inline void swap(context_t &a, context_t &b) ZMQ_NOTHROW {
+ a.swap(b);
+}
+
+#ifdef ZMQ_CPP11
+
+struct recv_buffer_size
+{
+ size_t size; // number of bytes written to buffer
+ size_t untruncated_size; // untruncated message size in bytes
+
+ ZMQ_NODISCARD bool truncated() const noexcept
+ {
+ return size != untruncated_size;
+ }
+};
+
+#if defined(ZMQ_HAS_OPTIONAL) && (ZMQ_HAS_OPTIONAL > 0)
+
+using send_result_t = std::optional<size_t>;
+using recv_result_t = std::optional<size_t>;
+using recv_buffer_result_t = std::optional<recv_buffer_size>;
+
+#else
+
+namespace detail
+{
+// A C++11 type emulating the most basic
+// operations of std::optional for trivial types
+template<class T> class trivial_optional
+{
+ public:
+ static_assert(std::is_trivial<T>::value, "T must be trivial");
+ using value_type = T;
+
+ trivial_optional() = default;
+ trivial_optional(T value) noexcept : _value(value), _has_value(true) {}
+
+ const T *operator->() const noexcept
+ {
+ assert(_has_value);
+ return &_value;
+ }
+ T *operator->() noexcept
+ {
+ assert(_has_value);
+ return &_value;
+ }
+
+ const T &operator*() const noexcept
+ {
+ assert(_has_value);
+ return _value;
+ }
+ T &operator*() noexcept
+ {
+ assert(_has_value);
+ return _value;
+ }
+
+ T &value()
+ {
+ if (!_has_value)
+ throw std::exception();
+ return _value;
+ }
+ const T &value() const
+ {
+ if (!_has_value)
+ throw std::exception();
+ return _value;
+ }
+
+ explicit operator bool() const noexcept { return _has_value; }
+ bool has_value() const noexcept { return _has_value; }
+
+ private:
+ T _value{};
+ bool _has_value{false};
+};
+} // namespace detail
+
+using send_result_t = detail::trivial_optional<size_t>;
+using recv_result_t = detail::trivial_optional<size_t>;
+using recv_buffer_result_t = detail::trivial_optional<recv_buffer_size>;
+
+#endif
+
+namespace detail
+{
+
+template<class T>
+constexpr T enum_bit_or(T a, T b) noexcept
+{
+ static_assert(std::is_enum<T>::value, "must be enum");
+ using U = typename std::underlying_type<T>::type;
+ return static_cast<T>(static_cast<U>(a) | static_cast<U>(b));
+}
+template<class T>
+constexpr T enum_bit_and(T a, T b) noexcept
+{
+ static_assert(std::is_enum<T>::value, "must be enum");
+ using U = typename std::underlying_type<T>::type;
+ return static_cast<T>(static_cast<U>(a) & static_cast<U>(b));
+}
+template<class T>
+constexpr T enum_bit_xor(T a, T b) noexcept
+{
+ static_assert(std::is_enum<T>::value, "must be enum");
+ using U = typename std::underlying_type<T>::type;
+ return static_cast<T>(static_cast<U>(a) ^ static_cast<U>(b));
+}
+template<class T>
+constexpr T enum_bit_not(T a) noexcept
+{
+ static_assert(std::is_enum<T>::value, "must be enum");
+ using U = typename std::underlying_type<T>::type;
+ return static_cast<T>(~static_cast<U>(a));
+}
+} // namespace detail
+
+// partially satisfies named requirement BitmaskType
+enum class send_flags : int
+{
+ none = 0,
+ dontwait = ZMQ_DONTWAIT,
+ sndmore = ZMQ_SNDMORE
+};
+
+constexpr send_flags operator|(send_flags a, send_flags b) noexcept
+{
+ return detail::enum_bit_or(a, b);
+}
+constexpr send_flags operator&(send_flags a, send_flags b) noexcept
+{
+ return detail::enum_bit_and(a, b);
+}
+constexpr send_flags operator^(send_flags a, send_flags b) noexcept
+{
+ return detail::enum_bit_xor(a, b);
+}
+constexpr send_flags operator~(send_flags a) noexcept
+{
+ return detail::enum_bit_not(a);
+}
+
+// partially satisfies named requirement BitmaskType
+enum class recv_flags : int
+{
+ none = 0,
+ dontwait = ZMQ_DONTWAIT
+};
+
+constexpr recv_flags operator|(recv_flags a, recv_flags b) noexcept
+{
+ return detail::enum_bit_or(a, b);
+}
+constexpr recv_flags operator&(recv_flags a, recv_flags b) noexcept
+{
+ return detail::enum_bit_and(a, b);
+}
+constexpr recv_flags operator^(recv_flags a, recv_flags b) noexcept
+{
+ return detail::enum_bit_xor(a, b);
+}
+constexpr recv_flags operator~(recv_flags a) noexcept
+{
+ return detail::enum_bit_not(a);
+}
+
+
+// mutable_buffer, const_buffer and buffer are based on
+// the Networking TS specification, draft:
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/n4771.pdf
+
+class mutable_buffer
+{
+ public:
+ constexpr mutable_buffer() noexcept : _data(nullptr), _size(0) {}
+ constexpr mutable_buffer(void *p, size_t n) noexcept : _data(p), _size(n)
+ {
+#ifdef ZMQ_CPP14
+ assert(p != nullptr || n == 0);
+#endif
+ }
+
+ constexpr void *data() const noexcept { return _data; }
+ constexpr size_t size() const noexcept { return _size; }
+ mutable_buffer &operator+=(size_t n) noexcept
+ {
+ // (std::min) is a workaround for when a min macro is defined
+ const auto shift = (std::min)(n, _size);
+ _data = static_cast<char *>(_data) + shift;
+ _size -= shift;
+ return *this;
+ }
+
+ private:
+ void *_data;
+ size_t _size;
+};
+
+inline mutable_buffer operator+(const mutable_buffer &mb, size_t n) noexcept
+{
+ return mutable_buffer(static_cast<char *>(mb.data()) + (std::min)(n, mb.size()),
+ mb.size() - (std::min)(n, mb.size()));
+}
+inline mutable_buffer operator+(size_t n, const mutable_buffer &mb) noexcept
+{
+ return mb + n;
+}
+
+class const_buffer
+{
+ public:
+ constexpr const_buffer() noexcept : _data(nullptr), _size(0) {}
+ constexpr const_buffer(const void *p, size_t n) noexcept : _data(p), _size(n)
+ {
+#ifdef ZMQ_CPP14
+ assert(p != nullptr || n == 0);
+#endif
+ }
+ constexpr const_buffer(const mutable_buffer &mb) noexcept :
+ _data(mb.data()),
+ _size(mb.size())
+ {
+ }
+
+ constexpr const void *data() const noexcept { return _data; }
+ constexpr size_t size() const noexcept { return _size; }
+ const_buffer &operator+=(size_t n) noexcept
+ {
+ const auto shift = (std::min)(n, _size);
+ _data = static_cast<const char *>(_data) + shift;
+ _size -= shift;
+ return *this;
+ }
+
+ private:
+ const void *_data;
+ size_t _size;
+};
+
+inline const_buffer operator+(const const_buffer &cb, size_t n) noexcept
+{
+ return const_buffer(static_cast<const char *>(cb.data())
+ + (std::min)(n, cb.size()),
+ cb.size() - (std::min)(n, cb.size()));
+}
+inline const_buffer operator+(size_t n, const const_buffer &cb) noexcept
+{
+ return cb + n;
+}
+
+// buffer creation
+
+constexpr mutable_buffer buffer(void* p, size_t n) noexcept
+{
+ return mutable_buffer(p, n);
+}
+constexpr const_buffer buffer(const void* p, size_t n) noexcept
+{
+ return const_buffer(p, n);
+}
+constexpr mutable_buffer buffer(const mutable_buffer& mb) noexcept
+{
+ return mb;
+}
+inline mutable_buffer buffer(const mutable_buffer& mb, size_t n) noexcept
+{
+ return mutable_buffer(mb.data(), (std::min)(mb.size(), n));
+}
+constexpr const_buffer buffer(const const_buffer& cb) noexcept
+{
+ return cb;
+}
+inline const_buffer buffer(const const_buffer& cb, size_t n) noexcept
+{
+ return const_buffer(cb.data(), (std::min)(cb.size(), n));
+}
+
+namespace detail
+{
+
+template<class T>
+struct is_buffer
+{
+ static constexpr bool value =
+ std::is_same<T, const_buffer>::value ||
+ std::is_same<T, mutable_buffer>::value;
+};
+
+template<class T> struct is_pod_like
+{
+ // NOTE: The networking draft N4771 section 16.11 requires
+ // T in the buffer functions below to be
+ // trivially copyable OR standard layout.
+ // Here we decide to be conservative and require both.
+ static constexpr bool value =
+ ZMQ_IS_TRIVIALLY_COPYABLE(T) && std::is_standard_layout<T>::value;
+};
+
+template<class C> constexpr auto seq_size(const C &c) noexcept -> decltype(c.size())
+{
+ return c.size();
+}
+template<class T, size_t N>
+constexpr size_t seq_size(const T (&/*array*/)[N]) noexcept
+{
+ return N;
+}
+
+template<class Seq>
+auto buffer_contiguous_sequence(Seq &&seq) noexcept
+ -> decltype(buffer(std::addressof(*std::begin(seq)), size_t{}))
+{
+ using T = typename std::remove_cv<
+ typename std::remove_reference<decltype(*std::begin(seq))>::type>::type;
+ static_assert(detail::is_pod_like<T>::value, "T must be POD");
+
+ const auto size = seq_size(seq);
+ return buffer(size != 0u ? std::addressof(*std::begin(seq)) : nullptr,
+ size * sizeof(T));
+}
+template<class Seq>
+auto buffer_contiguous_sequence(Seq &&seq, size_t n_bytes) noexcept
+ -> decltype(buffer_contiguous_sequence(seq))
+{
+ using T = typename std::remove_cv<
+ typename std::remove_reference<decltype(*std::begin(seq))>::type>::type;
+ static_assert(detail::is_pod_like<T>::value, "T must be POD");
+
+ const auto size = seq_size(seq);
+ return buffer(size != 0u ? std::addressof(*std::begin(seq)) : nullptr,
+ (std::min)(size * sizeof(T), n_bytes));
+}
+
+} // namespace detail
+
+// C array
+template<class T, size_t N> mutable_buffer buffer(T (&data)[N]) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, size_t N>
+mutable_buffer buffer(T (&data)[N], size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+template<class T, size_t N> const_buffer buffer(const T (&data)[N]) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, size_t N>
+const_buffer buffer(const T (&data)[N], size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+// std::array
+template<class T, size_t N> mutable_buffer buffer(std::array<T, N> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, size_t N>
+mutable_buffer buffer(std::array<T, N> &data, size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+template<class T, size_t N>
+const_buffer buffer(std::array<const T, N> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, size_t N>
+const_buffer buffer(std::array<const T, N> &data, size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+template<class T, size_t N>
+const_buffer buffer(const std::array<T, N> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, size_t N>
+const_buffer buffer(const std::array<T, N> &data, size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+// std::vector
+template<class T, class Allocator>
+mutable_buffer buffer(std::vector<T, Allocator> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, class Allocator>
+mutable_buffer buffer(std::vector<T, Allocator> &data, size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+template<class T, class Allocator>
+const_buffer buffer(const std::vector<T, Allocator> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, class Allocator>
+const_buffer buffer(const std::vector<T, Allocator> &data, size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+// std::basic_string
+template<class T, class Traits, class Allocator>
+mutable_buffer buffer(std::basic_string<T, Traits, Allocator> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, class Traits, class Allocator>
+mutable_buffer buffer(std::basic_string<T, Traits, Allocator> &data,
+ size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+template<class T, class Traits, class Allocator>
+const_buffer buffer(const std::basic_string<T, Traits, Allocator> &data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, class Traits, class Allocator>
+const_buffer buffer(const std::basic_string<T, Traits, Allocator> &data,
+ size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+
+#if defined(ZMQ_HAS_STRING_VIEW) && (ZMQ_HAS_STRING_VIEW > 0)
+// std::basic_string_view
+template<class T, class Traits>
+const_buffer buffer(std::basic_string_view<T, Traits> data) noexcept
+{
+ return detail::buffer_contiguous_sequence(data);
+}
+template<class T, class Traits>
+const_buffer buffer(std::basic_string_view<T, Traits> data, size_t n_bytes) noexcept
+{
+ return detail::buffer_contiguous_sequence(data, n_bytes);
+}
+#endif
+
+// Buffer for a string literal (null terminated)
+// where the buffer size excludes the terminating character.
+// Equivalent to zmq::buffer(std::string_view("...")).
+template<class Char, size_t N>
+constexpr const_buffer str_buffer(const Char (&data)[N]) noexcept
+{
+ static_assert(detail::is_pod_like<Char>::value, "Char must be POD");
+#ifdef ZMQ_CPP14
+ assert(data[N - 1] == Char{0});
+#endif
+ return const_buffer(static_cast<const Char*>(data),
+ (N - 1) * sizeof(Char));
+}
+
+namespace literals
+{
+ constexpr const_buffer operator"" _zbuf(const char* str, size_t len) noexcept
+ {
+ return const_buffer(str, len * sizeof(char));
+ }
+ constexpr const_buffer operator"" _zbuf(const wchar_t* str, size_t len) noexcept
+ {
+ return const_buffer(str, len * sizeof(wchar_t));
+ }
+ constexpr const_buffer operator"" _zbuf(const char16_t* str, size_t len) noexcept
+ {
+ return const_buffer(str, len * sizeof(char16_t));
+ }
+ constexpr const_buffer operator"" _zbuf(const char32_t* str, size_t len) noexcept
+ {
+ return const_buffer(str, len * sizeof(char32_t));
+ }
+}
+
+#endif // ZMQ_CPP11
+
+namespace detail
+{
+
+class socket_base
+{
+public:
+ socket_base() ZMQ_NOTHROW : _handle(ZMQ_NULLPTR) {}
+ ZMQ_EXPLICIT socket_base(void *handle) ZMQ_NOTHROW : _handle(handle) {}
+
+ template<typename T> void setsockopt(int option_, T const &optval)
+ {
+ setsockopt(option_, &optval, sizeof(T));
+ }
+
+ void setsockopt(int option_, const void *optval_, size_t optvallen_)
+ {
+ int rc = zmq_setsockopt(_handle, option_, optval_, optvallen_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void getsockopt(int option_, void *optval_, size_t *optvallen_) const
+ {
+ int rc = zmq_getsockopt(_handle, option_, optval_, optvallen_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ template<typename T> T getsockopt(int option_) const
+ {
+ T optval;
+ size_t optlen = sizeof(T);
+ getsockopt(option_, &optval, &optlen);
+ return optval;
+ }
+
+ void bind(std::string const &addr) { bind(addr.c_str()); }
+
+ void bind(const char *addr_)
+ {
+ int rc = zmq_bind(_handle, addr_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void unbind(std::string const &addr) { unbind(addr.c_str()); }
+
+ void unbind(const char *addr_)
+ {
+ int rc = zmq_unbind(_handle, addr_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void connect(std::string const &addr) { connect(addr.c_str()); }
+
+ void connect(const char *addr_)
+ {
+ int rc = zmq_connect(_handle, addr_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void disconnect(std::string const &addr) { disconnect(addr.c_str()); }
+
+ void disconnect(const char *addr_)
+ {
+ int rc = zmq_disconnect(_handle, addr_);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ bool connected() const ZMQ_NOTHROW { return (_handle != ZMQ_NULLPTR); }
+
+#ifdef ZMQ_CPP11
+ ZMQ_DEPRECATED("from 4.3.1, use send taking a const_buffer and send_flags")
+#endif
+ size_t send(const void *buf_, size_t len_, int flags_ = 0)
+ {
+ int nbytes = zmq_send(_handle, buf_, len_, flags_);
+ if (nbytes >= 0)
+ return static_cast<size_t>(nbytes);
+ if (zmq_errno() == EAGAIN)
+ return 0;
+ throw error_t();
+ }
+
+#ifdef ZMQ_CPP11
+ ZMQ_DEPRECATED("from 4.3.1, use send taking message_t and send_flags")
+#endif
+ bool send(message_t &msg_,
+ int flags_ = 0) // default until removed
+ {
+ int nbytes = zmq_msg_send(msg_.handle(), _handle, flags_);
+ if (nbytes >= 0)
+ return true;
+ if (zmq_errno() == EAGAIN)
+ return false;
+ throw error_t();
+ }
+
+ template<typename T>
+#ifdef ZMQ_CPP11
+ ZMQ_DEPRECATED("from 4.4.1, use send taking message_t or buffer (for contiguous ranges), and send_flags")
+#endif
+ bool send(T first, T last, int flags_ = 0)
+ {
+ zmq::message_t msg(first, last);
+ int nbytes = zmq_msg_send(msg.handle(), _handle, flags_);
+ if (nbytes >= 0)
+ return true;
+ if (zmq_errno() == EAGAIN)
+ return false;
+ throw error_t();
+ }
+
+#ifdef ZMQ_HAS_RVALUE_REFS
+#ifdef ZMQ_CPP11
+ ZMQ_DEPRECATED("from 4.3.1, use send taking message_t and send_flags")
+#endif
+ bool send(message_t &&msg_,
+ int flags_ = 0) // default until removed
+ {
+ #ifdef ZMQ_CPP11
+ return send(msg_, static_cast<send_flags>(flags_)).has_value();
+ #else
+ return send(msg_, flags_);
+ #endif
+ }
+#endif
+
+#ifdef ZMQ_CPP11
+ send_result_t send(const_buffer buf, send_flags flags = send_flags::none)
+ {
+ const int nbytes =
+ zmq_send(_handle, buf.data(), buf.size(), static_cast<int>(flags));
+ if (nbytes >= 0)
+ return static_cast<size_t>(nbytes);
+ if (zmq_errno() == EAGAIN)
+ return {};
+ throw error_t();
+ }
+
+ send_result_t send(message_t &msg, send_flags flags)
+ {
+ int nbytes = zmq_msg_send(msg.handle(), _handle, static_cast<int>(flags));
+ if (nbytes >= 0)
+ return static_cast<size_t>(nbytes);
+ if (zmq_errno() == EAGAIN)
+ return {};
+ throw error_t();
+ }
+
+ send_result_t send(message_t &&msg, send_flags flags)
+ {
+ return send(msg, flags);
+ }
+#endif
+
+#ifdef ZMQ_CPP11
+ ZMQ_DEPRECATED("from 4.3.1, use recv taking a mutable_buffer and recv_flags")
+#endif
+ size_t recv(void *buf_, size_t len_, int flags_ = 0)
+ {
+ int nbytes = zmq_recv(_handle, buf_, len_, flags_);
+ if (nbytes >= 0)
+ return static_cast<size_t>(nbytes);
+ if (zmq_errno() == EAGAIN)
+ return 0;
+ throw error_t();
+ }
+
+#ifdef ZMQ_CPP11
+ ZMQ_DEPRECATED("from 4.3.1, use recv taking a reference to message_t and recv_flags")
+#endif
+ bool recv(message_t *msg_, int flags_ = 0)
+ {
+ int nbytes = zmq_msg_recv(msg_->handle(), _handle, flags_);
+ if (nbytes >= 0)
+ return true;
+ if (zmq_errno() == EAGAIN)
+ return false;
+ throw error_t();
+ }
+
+#ifdef ZMQ_CPP11
+ ZMQ_NODISCARD
+ recv_buffer_result_t recv(mutable_buffer buf,
+ recv_flags flags = recv_flags::none)
+ {
+ const int nbytes =
+ zmq_recv(_handle, buf.data(), buf.size(), static_cast<int>(flags));
+ if (nbytes >= 0) {
+ return recv_buffer_size{(std::min)(static_cast<size_t>(nbytes), buf.size()),
+ static_cast<size_t>(nbytes)};
+ }
+ if (zmq_errno() == EAGAIN)
+ return {};
+ throw error_t();
+ }
+
+ ZMQ_NODISCARD
+ recv_result_t recv(message_t &msg, recv_flags flags = recv_flags::none)
+ {
+ const int nbytes = zmq_msg_recv(msg.handle(), _handle, static_cast<int>(flags));
+ if (nbytes >= 0) {
+ assert(msg.size() == static_cast<size_t>(nbytes));
+ return static_cast<size_t>(nbytes);
+ }
+ if (zmq_errno() == EAGAIN)
+ return {};
+ throw error_t();
+ }
+#endif
+
+#if defined(ZMQ_BUILD_DRAFT_API) && ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 0)
+ void join(const char* group)
+ {
+ int rc = zmq_join(_handle, group);
+ if (rc != 0)
+ throw error_t();
+ }
+
+ void leave(const char* group)
+ {
+ int rc = zmq_leave(_handle, group);
+ if (rc != 0)
+ throw error_t();
+ }
+#endif
+
+ ZMQ_NODISCARD void *handle() ZMQ_NOTHROW { return _handle; }
+ ZMQ_NODISCARD const void *handle() const ZMQ_NOTHROW { return _handle; }
+
+ ZMQ_EXPLICIT operator bool() const ZMQ_NOTHROW { return _handle != ZMQ_NULLPTR; }
+ // note: non-const operator bool can be removed once
+ // operator void* is removed from socket_t
+ ZMQ_EXPLICIT operator bool() ZMQ_NOTHROW { return _handle != ZMQ_NULLPTR; }
+
+protected:
+ void *_handle;
+};
+} // namespace detail
+
+#ifdef ZMQ_CPP11
+enum class socket_type : int
+{
+ req = ZMQ_REQ,
+ rep = ZMQ_REP,
+ dealer = ZMQ_DEALER,
+ router = ZMQ_ROUTER,
+ pub = ZMQ_PUB,
+ sub = ZMQ_SUB,
+ xpub = ZMQ_XPUB,
+ xsub = ZMQ_XSUB,
+ push = ZMQ_PUSH,
+ pull = ZMQ_PULL,
+#if defined(ZMQ_BUILD_DRAFT_API) && ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 0)
+ server = ZMQ_SERVER,
+ client = ZMQ_CLIENT,
+ radio = ZMQ_RADIO,
+ dish = ZMQ_DISH,
+#endif
+#if ZMQ_VERSION_MAJOR >= 4
+ stream = ZMQ_STREAM,
+#endif
+ pair = ZMQ_PAIR
+};
+#endif
+
+struct from_handle_t
+{
+ struct _private {}; // disabling use other than with from_handle
+ ZMQ_CONSTEXPR_FN ZMQ_EXPLICIT from_handle_t(_private /*p*/) ZMQ_NOTHROW {}
+};
+
+ZMQ_CONSTEXPR_VAR from_handle_t from_handle = from_handle_t(from_handle_t::_private());
+
+// A non-owning nullable reference to a socket.
+// The reference is invalidated on socket close or destruction.
+class socket_ref : public detail::socket_base
+{
+ public:
+ socket_ref() ZMQ_NOTHROW : detail::socket_base() {}
+#ifdef ZMQ_CPP11
+ socket_ref(std::nullptr_t) ZMQ_NOTHROW : detail::socket_base() {}
+#endif
+ socket_ref(from_handle_t /*fh*/, void *handle) ZMQ_NOTHROW
+ : detail::socket_base(handle) {}
+};
+
+#ifdef ZMQ_CPP11
+inline bool operator==(socket_ref sr, std::nullptr_t /*p*/) ZMQ_NOTHROW
+{
+ return sr.handle() == nullptr;
+}
+inline bool operator==(std::nullptr_t /*p*/, socket_ref sr) ZMQ_NOTHROW
+{
+ return sr.handle() == nullptr;
+}
+inline bool operator!=(socket_ref sr, std::nullptr_t /*p*/) ZMQ_NOTHROW
+{
+ return !(sr == nullptr);
+}
+inline bool operator!=(std::nullptr_t /*p*/, socket_ref sr) ZMQ_NOTHROW
+{
+ return !(sr == nullptr);
+}
+#endif
+
+inline bool operator==(socket_ref a, socket_ref b) ZMQ_NOTHROW
+{
+ return std::equal_to<void*>()(a.handle(), b.handle());
+}
+inline bool operator!=(socket_ref a, socket_ref b) ZMQ_NOTHROW
+{
+ return !(a == b);
+}
+inline bool operator<(socket_ref a, socket_ref b) ZMQ_NOTHROW
+{
+ return std::less<void*>()(a.handle(), b.handle());
+}
+inline bool operator>(socket_ref a, socket_ref b) ZMQ_NOTHROW
+{
+ return b < a;
+}
+inline bool operator<=(socket_ref a, socket_ref b) ZMQ_NOTHROW
+{
+ return !(a > b);
+}
+inline bool operator>=(socket_ref a, socket_ref b) ZMQ_NOTHROW
+{
+ return !(a < b);
+}
+
+} // namespace zmq
+
+#ifdef ZMQ_CPP11
+namespace std
+{
+template<>
+struct hash<zmq::socket_ref>
+{
+ size_t operator()(zmq::socket_ref sr) const ZMQ_NOTHROW
+ {
+ return hash<void*>()(sr.handle());
+ }
+};
+} // namespace std
+#endif
+
+namespace zmq
+{
+
+class socket_t : public detail::socket_base
+{
+ friend class monitor_t;
+
+ public:
+ socket_t() ZMQ_NOTHROW
+ : detail::socket_base(ZMQ_NULLPTR)
+ , ctxptr(ZMQ_NULLPTR)
+ {
+ }
+
+ socket_t(context_t &context_, int type_)
+ : detail::socket_base(zmq_socket(static_cast<void*>(context_), type_))
+ , ctxptr(static_cast<void*>(context_))
+ {
+ if (_handle == ZMQ_NULLPTR)
+ throw error_t();
+ }
+
+#ifdef ZMQ_CPP11
+ socket_t(context_t &context_, socket_type type_)
+ : socket_t(context_, static_cast<int>(type_))
+ {
+ }
+#endif
+
+#ifdef ZMQ_HAS_RVALUE_REFS
+ socket_t(socket_t &&rhs) ZMQ_NOTHROW : detail::socket_base(rhs._handle), ctxptr(rhs.ctxptr)
+ {
+ rhs._handle = ZMQ_NULLPTR;
+ rhs.ctxptr = ZMQ_NULLPTR;
+ }
+ socket_t &operator=(socket_t &&rhs) ZMQ_NOTHROW
+ {
+ close();
+ std::swap(_handle, rhs._handle);
+ return *this;
+ }
+#endif
+
+ ~socket_t() ZMQ_NOTHROW { close(); }
+
+ operator void *() ZMQ_NOTHROW { return _handle; }
+
+ operator void const *() const ZMQ_NOTHROW { return _handle; }
+
+ void close() ZMQ_NOTHROW
+ {
+ if (_handle == ZMQ_NULLPTR)
+ // already closed
+ return;
+ int rc = zmq_close(_handle);
+ ZMQ_ASSERT(rc == 0);
+ _handle = ZMQ_NULLPTR;
+ }
+
+ void swap(socket_t &other) ZMQ_NOTHROW
+ {
+ std::swap(_handle, other._handle);
+ std::swap(ctxptr, other.ctxptr);
+ }
+
+ operator socket_ref() ZMQ_NOTHROW
+ {
+ return socket_ref(from_handle, _handle);
+ }
+
+ private:
+ void *ctxptr;
+
+ socket_t(const socket_t &) ZMQ_DELETED_FUNCTION;
+ void operator=(const socket_t &) ZMQ_DELETED_FUNCTION;
+
+ // used by monitor_t
+ socket_t(void *context_, int type_)
+ : detail::socket_base(zmq_socket(context_, type_))
+ , ctxptr(context_)
+ {
+ if (_handle == ZMQ_NULLPTR)
+ throw error_t();
+ }
+};
+
+inline void swap(socket_t &a, socket_t &b) ZMQ_NOTHROW {
+ a.swap(b);
+}
+
+ZMQ_DEPRECATED("from 4.3.1, use proxy taking socket_t objects")
+inline void proxy(void *frontend, void *backend, void *capture)
+{
+ int rc = zmq_proxy(frontend, backend, capture);
+ if (rc != 0)
+ throw error_t();
+}
+
+inline void
+proxy(socket_ref frontend, socket_ref backend, socket_ref capture = socket_ref())
+{
+ int rc = zmq_proxy(frontend.handle(), backend.handle(), capture.handle());
+ if (rc != 0)
+ throw error_t();
+}
+
+#ifdef ZMQ_HAS_PROXY_STEERABLE
+ZMQ_DEPRECATED("from 4.3.1, use proxy_steerable taking socket_t objects")
+inline void
+proxy_steerable(void *frontend, void *backend, void *capture, void *control)
+{
+ int rc = zmq_proxy_steerable(frontend, backend, capture, control);
+ if (rc != 0)
+ throw error_t();
+}
+
+inline void proxy_steerable(socket_ref frontend,
+ socket_ref backend,
+ socket_ref capture,
+ socket_ref control)
+{
+ int rc = zmq_proxy_steerable(frontend.handle(), backend.handle(),
+ capture.handle(), control.handle());
+ if (rc != 0)
+ throw error_t();
+}
+#endif
+
+class monitor_t
+{
+ public:
+ monitor_t() : _socket(), _monitor_socket() {}
+
+ virtual ~monitor_t()
+ {
+ close();
+ }
+
+#ifdef ZMQ_HAS_RVALUE_REFS
+ monitor_t(monitor_t &&rhs) ZMQ_NOTHROW : _socket(), _monitor_socket()
+ {
+ std::swap(_socket, rhs._socket);
+ std::swap(_monitor_socket, rhs._monitor_socket);
+ }
+
+ monitor_t &operator=(monitor_t &&rhs) ZMQ_NOTHROW
+ {
+ close();
+ _socket = socket_ref();
+ std::swap(_socket, rhs._socket);
+ std::swap(_monitor_socket, rhs._monitor_socket);
+ return *this;
+ }
+#endif
+
+
+ void
+ monitor(socket_t &socket, std::string const &addr, int events = ZMQ_EVENT_ALL)
+ {
+ monitor(socket, addr.c_str(), events);
+ }
+
+ void monitor(socket_t &socket, const char *addr_, int events = ZMQ_EVENT_ALL)
+ {
+ init(socket, addr_, events);
+ while (true) {
+ check_event(-1);
+ }
+ }
+
+ void init(socket_t &socket, std::string const &addr, int events = ZMQ_EVENT_ALL)
+ {
+ init(socket, addr.c_str(), events);
+ }
+
+ void init(socket_t &socket, const char *addr_, int events = ZMQ_EVENT_ALL)
+ {
+ int rc = zmq_socket_monitor(socket.handle(), addr_, events);
+ if (rc != 0)
+ throw error_t();
+
+ _socket = socket;
+ _monitor_socket = socket_t(socket.ctxptr, ZMQ_PAIR);
+ _monitor_socket.connect(addr_);
+
+ on_monitor_started();
+ }
+
+ bool check_event(int timeout = 0)
+ {
+ assert(_monitor_socket);
+
+ zmq_msg_t eventMsg;
+ zmq_msg_init(&eventMsg);
+
+ zmq::pollitem_t items[] = {
+ {_monitor_socket.handle(), 0, ZMQ_POLLIN, 0},
+ };
+
+ zmq::poll(&items[0], 1, timeout);
+
+ if (items[0].revents & ZMQ_POLLIN) {
+ int rc = zmq_msg_recv(&eventMsg, _monitor_socket.handle(), 0);
+ if (rc == -1 && zmq_errno() == ETERM)
+ return false;
+ assert(rc != -1);
+
+ } else {
+ zmq_msg_close(&eventMsg);
+ return false;
+ }
+
+#if ZMQ_VERSION_MAJOR >= 4
+ const char *data = static_cast<const char *>(zmq_msg_data(&eventMsg));
+ zmq_event_t msgEvent;
+ memcpy(&msgEvent.event, data, sizeof(uint16_t));
+ data += sizeof(uint16_t);
+ memcpy(&msgEvent.value, data, sizeof(int32_t));
+ zmq_event_t *event = &msgEvent;
+#else
+ zmq_event_t *event = static_cast<zmq_event_t *>(zmq_msg_data(&eventMsg));
+#endif
+
+#ifdef ZMQ_NEW_MONITOR_EVENT_LAYOUT
+ zmq_msg_t addrMsg;
+ zmq_msg_init(&addrMsg);
+ int rc = zmq_msg_recv(&addrMsg, _monitor_socket.handle(), 0);
+ if (rc == -1 && zmq_errno() == ETERM) {
+ zmq_msg_close(&eventMsg);
+ return false;
+ }
+
+ assert(rc != -1);
+ const char *str = static_cast<const char *>(zmq_msg_data(&addrMsg));
+ std::string address(str, str + zmq_msg_size(&addrMsg));
+ zmq_msg_close(&addrMsg);
+#else
+ // Bit of a hack, but all events in the zmq_event_t union have the same layout so this will work for all event types.
+ std::string address = event->data.connected.addr;
+#endif
+
+#ifdef ZMQ_EVENT_MONITOR_STOPPED
+ if (event->event == ZMQ_EVENT_MONITOR_STOPPED) {
+ zmq_msg_close(&eventMsg);
+ return false;
+ }
+
+#endif
+
+ switch (event->event) {
+ case ZMQ_EVENT_CONNECTED:
+ on_event_connected(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_CONNECT_DELAYED:
+ on_event_connect_delayed(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_CONNECT_RETRIED:
+ on_event_connect_retried(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_LISTENING:
+ on_event_listening(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_BIND_FAILED:
+ on_event_bind_failed(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_ACCEPTED:
+ on_event_accepted(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_ACCEPT_FAILED:
+ on_event_accept_failed(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_CLOSED:
+ on_event_closed(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_CLOSE_FAILED:
+ on_event_close_failed(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_DISCONNECTED:
+ on_event_disconnected(*event, address.c_str());
+ break;
+#ifdef ZMQ_BUILD_DRAFT_API
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 3)
+ case ZMQ_EVENT_HANDSHAKE_FAILED_NO_DETAIL:
+ on_event_handshake_failed_no_detail(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_HANDSHAKE_FAILED_PROTOCOL:
+ on_event_handshake_failed_protocol(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_HANDSHAKE_FAILED_AUTH:
+ on_event_handshake_failed_auth(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_HANDSHAKE_SUCCEEDED:
+ on_event_handshake_succeeded(*event, address.c_str());
+ break;
+#elif ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 1)
+ case ZMQ_EVENT_HANDSHAKE_FAILED:
+ on_event_handshake_failed(*event, address.c_str());
+ break;
+ case ZMQ_EVENT_HANDSHAKE_SUCCEED:
+ on_event_handshake_succeed(*event, address.c_str());
+ break;
+#endif
+#endif
+ default:
+ on_event_unknown(*event, address.c_str());
+ break;
+ }
+ zmq_msg_close(&eventMsg);
+
+ return true;
+ }
+
+#ifdef ZMQ_EVENT_MONITOR_STOPPED
+ void abort()
+ {
+ if (_socket)
+ zmq_socket_monitor(_socket.handle(), ZMQ_NULLPTR, 0);
+
+ _socket = socket_ref();
+ }
+#endif
+ virtual void on_monitor_started() {}
+ virtual void on_event_connected(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_connect_delayed(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_connect_retried(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_listening(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_bind_failed(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_accepted(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_accept_failed(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_closed(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_close_failed(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_disconnected(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 3)
+ virtual void on_event_handshake_failed_no_detail(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_handshake_failed_protocol(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_handshake_failed_auth(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_handshake_succeeded(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+#elif ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 1)
+ virtual void on_event_handshake_failed(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+ virtual void on_event_handshake_succeed(const zmq_event_t &event_,
+ const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+#endif
+ virtual void on_event_unknown(const zmq_event_t &event_, const char *addr_)
+ {
+ (void) event_;
+ (void) addr_;
+ }
+
+ private:
+ monitor_t(const monitor_t &) ZMQ_DELETED_FUNCTION;
+ void operator=(const monitor_t &) ZMQ_DELETED_FUNCTION;
+
+ socket_ref _socket;
+ socket_t _monitor_socket;
+
+ void close() ZMQ_NOTHROW
+ {
+ if (_socket)
+ zmq_socket_monitor(_socket.handle(), ZMQ_NULLPTR, 0);
+ _monitor_socket.close();
+ }
+};
+
+#if defined(ZMQ_BUILD_DRAFT_API) && defined(ZMQ_CPP11) && defined(ZMQ_HAVE_POLLER)
+
+// polling events
+enum class event_flags : short
+{
+ none = 0,
+ pollin = ZMQ_POLLIN,
+ pollout = ZMQ_POLLOUT,
+ pollerr = ZMQ_POLLERR,
+ pollpri = ZMQ_POLLPRI
+};
+
+constexpr event_flags operator|(event_flags a, event_flags b) noexcept
+{
+ return detail::enum_bit_or(a, b);
+}
+constexpr event_flags operator&(event_flags a, event_flags b) noexcept
+{
+ return detail::enum_bit_and(a, b);
+}
+constexpr event_flags operator^(event_flags a, event_flags b) noexcept
+{
+ return detail::enum_bit_xor(a, b);
+}
+constexpr event_flags operator~(event_flags a) noexcept
+{
+ return detail::enum_bit_not(a);
+}
+
+struct no_user_data;
+
+// layout compatible with zmq_poller_event_t
+template<class T = no_user_data>
+struct poller_event
+{
+ socket_ref socket;
+#ifdef _WIN32
+ SOCKET fd;
+#else
+ int fd;
+#endif
+ T *user_data;
+ event_flags events;
+};
+
+template<typename T = no_user_data> class poller_t
+{
+ public:
+ using event_type = poller_event<T>;
+
+ poller_t() : poller_ptr(zmq_poller_new())
+ {
+ if (!poller_ptr)
+ throw error_t();
+ }
+
+ template<
+ typename Dummy = void,
+ typename =
+ typename std::enable_if<!std::is_same<T, no_user_data>::value, Dummy>::type>
+ void add(zmq::socket_ref socket, event_flags events, T *user_data)
+ {
+ add_impl(socket, events, user_data);
+ }
+
+ void add(zmq::socket_ref socket, event_flags events)
+ {
+ add_impl(socket, events, nullptr);
+ }
+
+ void remove(zmq::socket_ref socket)
+ {
+ if (0 != zmq_poller_remove(poller_ptr.get(), socket.handle())) {
+ throw error_t();
+ }
+ }
+
+ void modify(zmq::socket_ref socket, event_flags events)
+ {
+ if (0
+ != zmq_poller_modify(poller_ptr.get(), socket.handle(),
+ static_cast<short>(events))) {
+ throw error_t();
+ }
+ }
+
+ size_t wait_all(std::vector<event_type> &poller_events,
+ const std::chrono::milliseconds timeout)
+ {
+ int rc = zmq_poller_wait_all(
+ poller_ptr.get(),
+ reinterpret_cast<zmq_poller_event_t *>(poller_events.data()),
+ static_cast<int>(poller_events.size()),
+ static_cast<long>(timeout.count()));
+ if (rc > 0)
+ return static_cast<size_t>(rc);
+
+#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 2, 3)
+ if (zmq_errno() == EAGAIN)
+#else
+ if (zmq_errno() == ETIMEDOUT)
+#endif
+ return 0;
+
+ throw error_t();
+ }
+
+ private:
+ struct destroy_poller_t
+ {
+ void operator()(void *ptr) noexcept
+ {
+ int rc = zmq_poller_destroy(&ptr);
+ ZMQ_ASSERT(rc == 0);
+ }
+ };
+
+ std::unique_ptr<void, destroy_poller_t> poller_ptr;
+
+ void add_impl(zmq::socket_ref socket, event_flags events, T *user_data)
+ {
+ if (0
+ != zmq_poller_add(poller_ptr.get(), socket.handle(),
+ user_data, static_cast<short>(events))) {
+ throw error_t();
+ }
+ }
+};
+#endif // defined(ZMQ_BUILD_DRAFT_API) && defined(ZMQ_CPP11) && defined(ZMQ_HAVE_POLLER)
+
+inline std::ostream &operator<<(std::ostream &os, const message_t &msg)
+{
+ return os << msg.str();
+}
+
+} // namespace zmq
+
+#endif // __ZMQ_HPP_INCLUDED__
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 20:35:56 +0000