bool recv(zmq::socket_t & socket) {
clear();
while(1) {
zmq::message_t message(0);
try {
if (!socket.recv(&message, 0)) {
return false;
}
} catch (zmq::error_t error) {
//std::cout << "E: " << error.what() << std::endl;
return false;
}
char *data = reinterpret_cast<char*>(message.data());
if (message.size() == 17 && data[0] == 0) {
push_back(encode_uuid(msg_to_string(message)));
} else {
push_back(msg_to_string(message));
}
boost::int64_t more;
size_t more_size = sizeof(more);
socket.getsockopt(ZMQ_RCVMORE, &more, &more_size);
if (!more) {
break;
}
}
return true;
}
inline bool recv (zmq::socket_t & socket, tile_protocol & tile)
{
zmq::message_t msg;
socket.recv(&msg);
std::string buf(static_cast<char*>(msg.data()),msg.size());
return unserialise(buf, tile);
}
// Receive 0MQ string from socket and convert into string
static std::string
s_recv (zmq::socket_t & socket) {
zmq::message_t message;
socket.recv(&message);
return std::string(static_cast<char*>(message.data()), message.size());
}
void process_frontend(zmq::socket_t& frontend, int& available_workers) {
zmq::message_t req;
frontend.recv(&req);
zmq::message_t reply(sizeof(available_workers));
memcpy(reply.data(), &available_workers, sizeof(available_workers));
frontend.send(reply);
}
bool recursive_receive(zmq::socket_t& receiving_socket, zmq::message_t& message,
const REQ& req, RES& response, bool& succeed) {
bool rc = receiving_socket.recv(&message);
if (rc) {
auto serialized_resp = kZmqUtil->message_to_string(message);
response.ParseFromString(serialized_resp);
if (req.request_id() == response.response_id()) {
succeed = true;
return false;
} else {
return true;
}
} else {
// timeout
if (errno == EAGAIN) {
succeed = false;
} else {
succeed = false;
}
return false;
}
}
// 0 for received nothing
int recv_msg_async(zmq::socket_t &sock, boost::shared_array<uint8_t> &data)
{
zmq::message_t msgt;
int nbytes;
try{
nbytes = sock.recv(&msgt, ZMQ_DONTWAIT);
}catch(zmq::error_t e){
return -1;
}
if(nbytes == 0){
if(zmq_errno() == EAGAIN)
return 0;
else
return -1;
}
size_t len = msgt.size();
uint8_t *dataptr;
try{
dataptr = new uint8_t[len];
}catch(std::bad_alloc e){
return -1;
}
memcpy(dataptr, msgt.data(), len);
data.reset(dataptr);
return len;
}
/*
* return number of bytes received, negative if error, 0 for received nothing, which should be treated as error
*/
int recv_msg(zmq::socket_t &sock, boost::shared_array<uint8_t> &data)
{
zmq::message_t msgt;
int nbytes;
try{
nbytes = sock.recv(&msgt);
}catch(zmq::error_t e){
//LOG(NOR, stderr, "recv failed: %s\n", e.what());
return -1;
}
if(nbytes == 0) return 0;
size_t len = msgt.size();
uint8_t *dataptr;
try{
dataptr = new uint8_t[len];
}catch(std::bad_alloc e){
//LOG(DBG, stderr, "can not allocate memory!\n");
return -1;
}
memcpy(dataptr, msgt.data(), len);
data.reset(dataptr);
return len;
}
void
raw_sender(zmq::socket_t& s)
{
for (size_t i = 0; i < ITERS; ++i)
{
zmq::message_t msg1(ARRAY_LEN(PART1)-1);
memcpy(msg1.data(), PART1, msg1.size());
s.send(msg1, ZMQ_SNDMORE);
zmq::message_t msg2(ARRAY_LEN(PART2)-1);
memcpy(msg2.data(), PART2, msg2.size());
s.send(msg2, ZMQ_SNDMORE);
zmq::message_t msg3(ARRAY_LEN(PART3)-1);
memcpy(msg3.data(), PART3, msg3.size());
s.send(msg3);
zmq::message_t msg_res;
s.recv(&msg_res, 0);
if (i % 1000 == 0)
{
std::cout << ".";
std::cout.flush();
}
}
}
/*
* return number of bytes received, negative if error, 0 for received nothing,
* which should be treated as error
*/
int32_t RecvMsg(zmq::socket_t &sock, boost::shared_array<uint8_t> &data,
bool *_more){
zmq::message_t msgt;
int nbytes;
try{
nbytes = sock.recv(&msgt);
}catch(zmq::error_t &e){
LOG(ERROR) << "RecvMsg error = " << e.what();
return -1;
}
if(nbytes == 0) return 0;
size_t len = msgt.size();
uint8_t *dataptr;
try{
dataptr = new uint8_t[len];
}catch(std::bad_alloc &e){
return -1;
}
memcpy(dataptr, msgt.data(), len);
data.reset(dataptr);
if(_more != NULL){
int more_recv;
size_t s = sizeof(int);
sock.getsockopt(ZMQ_RCVMORE, &more_recv, &s);
*_more = (more_recv == 1) ? true : false;
}
return len;
}
void handleOp(zmq::socket_t &socket, int opCode) {
std::string s_req, trace, line;
std::cout<<"Trace: ";
std::getline(std::cin, trace);
Request req;
Id id;
Person person;
Request_Header_Type type;
switch (opCode) {
case 1:
type = Request_Header_Type_LOOKUP;
std::cout<<"id: ";
line.clear();
std::getline(std::cin, line);
id = makeId(fromString<int>(line));
req = makeRequest(type, id, person, false, trace);
break;
case 3:
type = Request_Header_Type_REMOVE;
std::cout<<"id: ";
line.clear();
std::getline(std::cin, line);
id = makeId(fromString<int>(line));
req = makeRequest(type, id, person, false, trace);
break;
case 2:
{
type = Request_Header_Type_INSERT;
std::cout<<"id: ";
line.clear();
std::getline(std::cin, line);
id = makeId(fromString<int>(line));
line.clear();
std::cout<<"Name: ";
std::getline(std::cin, line);
std::string ph, ovr;
std::cout<<"Phone: ";
std::getline(std::cin, ph);
std::cout<<"Overwrite: (y/n) ";
std::getline(std::cin, ovr);
person = makePerson(line, ph);
req = makeRequest(type, id, person, ovr.compare("y") == 0,
trace);
break;
}
};
std::cout<<"Request: "<<requestToString(req);
TRACE(std::cout, "");
req.SerializeToString(&s_req);
zmq::message_t z_req(s_req.size());
memcpy(z_req.data(), (void *)s_req.data(), s_req.size());
socket.send(z_req);
zmq::message_t z_resp;
socket.recv(&z_resp);
std::string s_resp((char *)z_resp.data(), z_resp.size());
Response resp;
resp.ParseFromString(s_resp);
std::cout<<"Response = "<<responseToString(resp);
}
void receiveStr(zmq::socket_t& socket, string& s, int flags = 0) {
zmq::message_t request;
if (!socket.recv(&request, flags)) {
std::cerr << "Reception KO" << std::endl;
}
s.append((char const *) request.data(), request.size());
}
void _receive(zmq::socket_t & socket, std::list<zmq::message_t*> *result) {
do {
zmq::message_t * msg = new zmq::message_t();
// TODO: error handling
socket.recv(msg);
result->push_back(msg);
} while (sockopt_rcvmore(socket));
}
unsigned s_recv (zmq::socket_t & socket, std::string& buffer) {
zmq::message_t message;
socket.recv(&message);
buffer.clear();
buffer.assign(static_cast<char*>(message.data()), message.size());
return message.size();
}
// capacity request
void process_status_request(zmq::socket_t& status, int& number_of_workers) {
// null request
zmq::message_t incoming_msg;
status.recv(&incoming_msg);
// send current capacity
zmq::message_t status_msg(sizeof(number_of_workers));
memcpy(status_msg.data(), &number_of_workers, sizeof(number_of_workers));
status.send(status_msg);
}
static bool recv_zmq_message(zmq::socket_t& sock,
zmq::message_t& msg,
T& object,
int flags = ZMQ_NOBLOCK)
{
if (!sock.recv(&msg, flags)) {
return false;
}
memcpy(&object, msg.data(), msg.size());
return true;
}
bool Server::getRequest (zmq::socket_t &socket, pb::RequestEnvelope &envelope) {
long long more;
size_t sz = sizeof (more);
zmq::message_t request;
socket.recv (&request);
socket.getsockopt (ZMQ_RCVMORE, &more, &sz);
bool isAnotherRequest = more != 0;
envelope.ParseFromArray (request.data(), request.size());
return isAnotherRequest;
}
/** Receive a string. */
inline bool recv(zmq::socket_t &s, std::string &v, int flags)
{
zmq::message_t msg;
IB_FIRST_PART(s.recv(&msg, flags));
v.assign(
static_cast<char*>(msg.data()),
static_cast<char*>(msg.data()) + msg.size());
return true;
}
bool ServerInterface::SendMove(enum Tetromino::Move move, int pieceId, zmq::socket_t& commandSocket) const {
std::string const* moveCommandS = m_factory.CreateMoveMessage(move, pieceId);
zmq::message_t moveCommand (moveCommandS->size());
memcpy(static_cast<void*>(moveCommand.data()), moveCommandS->data(),
moveCommandS->size());
delete moveCommandS;
commandSocket.send(moveCommand);
zmq::message_t reply;
commandSocket.recv(&reply);
std::string replyS (static_cast<char const*>(reply.data()), reply.size());
return m_factory.ParseMoveReply(replyS);
}
inline bool recv(zmq::socket_t &s, T &v, int flags)
{
zmq::message_t msg;
IB_FIRST_PART(s.recv(&msg, flags));
in_memory_buffer mb(static_cast<char*>(msg.data()), msg.size());
std::istream is(&mb);
is >> v;
IB_ASSERT(!is.fail(), ib_error::ECONVERSION);
return true;
}
std::vector<zmq::message_t> CentralProxy::receive_multipart(zmq::socket_t& socket_fe)
{
std::vector<zmq::message_t> message;
bool more = true;
while (more)
{
message.push_back(zmq::message_t());
zmq::message_t& msg = message.back();
socket_fe.recv(&msg);
more = msg.more();
}
return message;
}
bool
nutils::recv_zmq_message(zmq::socket_t& sock,
zmq::message_t& msg,
std::string& str,
int flags)
{
if (!sock.recv(&msg, flags)) {
return false;
}
str.clear();
str.append(reinterpret_cast<char*>(msg.data()), msg.size());
return true;
}
void recv_multipart(zmq::socket_t &socket) {
int64_t more=-1;
size_t more_size = sizeof (more);
while(more) {
zmq::message_t response;
socket.recv(&response);
std::string response_str((const char *)response.data(),
response.size());
cout << response_str << endl;
socket.getsockopt(ZMQ_RCVMORE, &more, &more_size);
}
}
bool safeRecv(zmq::socket_t &sock, char *buf, int buflen, bool block, size_t &response_len, int64_t timeout) {
char tnam[100];
int pgn_rc = pthread_getname_np(pthread_self(),tnam, 100);
assert(pgn_rc == 0);
//{FileLogger fl(program_name); fl.f() << tnam << " receiving\n";}
response_len = 0;
int retries = 5;
if (block && timeout == 0)
timeout = 500;
while (!MessagingInterface::aborted()) {
try {
zmq::pollitem_t items[] = { { (void*)sock, 0, ZMQ_POLLERR | ZMQ_POLLIN, 0 } };
int n = zmq::poll( &items[0], 1, timeout);
if (!n && block) {
usleep(10); continue;
}
if (items[0].revents & ZMQ_POLLIN) {
//{FileLogger fl(program_name); fl.f() << tnam << " safeRecv() collecting data\n"; }
response_len = sock.recv(buf, buflen, ZMQ_DONTWAIT);
if (response_len > 0 && response_len < (unsigned int)buflen) {
buf[response_len] = 0;
//if (response_len>10){FileLogger fl(program_name); fl.f() << tnam << " saveRecv() collected data '" << buf << "' with length " << response_len << "\n"; }
}
else {
//if (response_len > 10){FileLogger fl(program_name); fl.f() << tnam << " saveRecv() collected data with length " << response_len << "\n"; }
}
if (!response_len && block) continue;
}
return (response_len == 0) ? false : true;
}
catch (zmq::error_t e) {
{
FileLogger fl(program_name);
fl.f() << tnam << " safeRecv error " << errno << " " << zmq_strerror(errno) << "\n";
}
if (--retries == 0) {
exit(EXIT_FAILURE);
}
if (errno == EINTR) { std::cerr << "interrupted system call, retrying\n";
if (block) continue;
}
usleep(10);
return false;
}
}
return false;
}
// relay data from workers to frontend
void process_backend(zmq::socket_t& frontend, zmq::socket_t& backend) {
int64_t more;
size_t moresz;
moresz = sizeof(more);
while(true) {
zmq::message_t worker_msg;
backend.recv(&worker_msg);
backend.getsockopt(ZMQ_RCVMORE, &more, &moresz);
frontend.send(worker_msg, more ? ZMQ_SNDMORE : 0);
if(!more) {
break;
}
}
}
/**
* Try to receive message part from socket.
* @return false if would block
*/
inline bool
try_recv_msg(zmq::socket_t& sock, zmq::message_t& msg,
int flags = ZMQ_NOBLOCK) throw(ZmqErrorType)
{
bool res = false;
try
{
res = sock.recv(&msg, flags);
}
catch (const zmq::error_t& e)
{
throw_zmq_exception(e);
}
return res;
}
/**
* Receive message part from socket
*/
inline void
recv_msg(zmq::socket_t& sock, zmq::message_t& msg,
int flags = 0) throw(ZmqErrorType)
{
try
{
if (!sock.recv(&msg, flags))
{
throw zmq::error_t();
}
}
catch (const zmq::error_t& e)
{
throw_zmq_exception(e);
}
}
bool
nutils::recv_zmq_message(zmq::socket_t& sock,
zmq::message_t& msg,
msgpack::object& obj,
int flags)
{
if (!sock.recv(&msg, flags)) {
return false;
}
msgpack::unpacked unpacked;
msgpack::unpack(&unpacked, reinterpret_cast<const char*>(msg.data()), msg.size());
obj = unpacked.get();
return true;
}
int
relay_raw(zmq::socket_t& src, zmq::socket_t& dst, bool check_first_part)
{
int relayed = 0;
for (
bool more = check_first_part ? has_more(src) : true;
more; ++relayed)
{
zmq::message_t cur_part;
src.recv(&cur_part);
more = has_more(src);
int flag = more ? ZMQ_SNDMORE : 0;
send_msg(dst, cur_part, flag);
}
return relayed;
}
std::string receiveString(zmq::socket_t & socket)
{
zmq::message_t message;
std::string result = "";
try
{
socket.recv(&message);
result = std::string(static_cast<char*>(message.data()), message.size());
}
catch(const zmq::error_t& e)
{
VLOG(1) << "ZMQ receive has thrown with type " << e.what();
throw;
}
return result;
}
/*
* return number of bytes received, negative if error
*/
int recv_msg(zmq::socket_t &sock, commtest::cliid_t &cid, boost::shared_array<uint8_t> &data)
{
zmq::message_t msgt;
try{
sock.recv(&msgt);
}catch(zmq::error_t e){
//LOG(NOR, stderr, "recv cid failed: %s\n", e.what());
return -1;
}
size_t len = msgt.size();
if(len != sizeof(commtest::cliid_t)) return -1;
cid = *((commtest::cliid_t *) msgt.data());
//LOG(DBG, stderr, "received id = 0x%x\n", cid);
return recv_msg(sock, data);
}
