C++ ZeroMQ:如何使用C<;C11
我是ZeroMQ的新手。C++ ZeroMQ:如何使用C<;C11,c++,zeromq,C++,Zeromq,我是ZeroMQ的新手。 我有多个出版商和一个客户。寻求以最佳方式实施的建议。 目前,它对单个客户机和服务器使用应答-请求模式;这必须扩展到多个发布者和单个订阅者 此应用程序将在不支持C11的QNX系统上运行,因此zmq::multipart\t没有帮助 void TransportLayer::Init() { socket.bind( "tcp://*:5555" ); } void TransportLayer::Receive() { while ( true ) {
我有多个出版商和一个客户。寻求以最佳方式实施的建议。
目前,它对单个客户机和服务器使用应答-请求模式;这必须扩展到多个发布者和单个订阅者 此应用程序将在不支持C11的QNX系统上运行,因此
zmq::multipart\t
没有帮助
void TransportLayer::Init()
{
socket.bind( "tcp://*:5555" );
}
void TransportLayer::Receive()
{
while ( true ) {
zmq::message_t request;
string protoBuf;
socket.recv( &request );
uint16_t id = *( (uint16_t*)request.data() );
protoBuf = std::string( static_cast<char*>( request.data()
+ sizeof( uint16_t )
),
request.size() - sizeof( uint16_t )
);
InterfaceLayer::getInstance()->ParseProtoBufTable( protoBuf );
}
Send();
usleep( 1 );
}
void TransportLayer::Send()
{
zmq::message_t reply( 1 );
memcpy( reply.data(), "#", 1 );
socket.send( reply );
}
void TransportLayer::Receive()
{
库特
Q:“如何使用C多个发布服务器和单个客户端?”
如果你从未与之合作过,
在这里,你可以先看看
,然后再深入了解更多细节
因此,QNX版本没有明确说明,所以让我们在一般情况下工作
如上所述,在,
单个客户端(属于
-原型)可能zmq\u connect(?)
,但其成本是管理一些我不知道的、当前和未来所有其他
-s如何被允许zmq\u绑定()
,然后让SUB知道在哪里连接,以便从新绑定的PUB
-同行那里获得一些消息
因此,让单个SUB
-agent执行zmq_bind()
,并让当前或未来的PUB
-s执行zmq_connect()
,指向单个静态的已知SUB
位置,这将是一种更聪明的方法(这并不是说,如果QNX允许和系统架构要求,他们不能使用任何可用的传输类-一个inproc://
,另一个tcp://
,一些ipc://
(显然,假设子-代理公开了一个正确配置的AccessNode来接收这样的连接)
接下来,您的子
-客户端必须配置其订阅筛选主题列表:是否是“接收所有内容”的命令:
。。。
retCode=zmq_setsockopt(,zmq_SUBSCRIBE,“,0);
断言(retCode==0&&“失败:在ZMQ_订阅订单上”);
...
考虑到这一点,您的下一个任务是使设置足够健壮(显式ZMQ\u LINGER
设置为0、访问策略、安全性、扩展资源、二级/三级网络保护措施等)
您已经完成了利用ZeroMQ来满足QNX系统设计需求的工作
使用如此智能、如此强大的信令/消息框架发送快乐消息!由于Stack Overflow不是一个人工搜索引擎,因此询问链接的问题是离题的。请澄清您的问题:您编写了什么代码以及遇到了什么问题?您看起来怎么样for@ForceBru我加了一个附加项奥纳尔information@Mathieu谢谢。看来很有希望。我会玩一点,看看它是否合适。谢谢回复。使用C++ dummyFrontEnd::dummyFrontEnd():context(1),socket(context,ZMQ_PUB) {
}
void dummyFrontEnd::Init()
{
socket.connect("tcp://127.0.0.1:5555");
cout << "Connecting .... " << endl;
}
void dummyFrontEnd::SendData() {
while ( std::getline(file, line_str) ) {
std::stringstream ss(line_str);
std::string direction;
double tdiff;
int i, _1939, pgn, priority, source, length, data[8];
char J, p, _0, dash, d;
ss >> tdiff >> i >> J >> _1939 >> pgn >> p >> priority >> _0 >> source
>> dash >> direction >> d >> length >> data[0] >> data[1] >> data[2]
>> data[3] >> data[4] >> data[5] >> data[6] >> data[7];
timestamp += tdiff;
while ( gcl_get_time_ms() - start_time <
uint64_t(timestamp * 1000.0) - first_time ) { usleep(1); }
if (arguments.verbose) {
std::cout << timestamp << " " << i << " " << J << " " << _1939 << " "
<< pgn << " " << p << " " << priority << " " << _0 << " " << source
<< " " << dash << " " << direction << " " << d << " " << length
<< " " << data[0] << " " << data[1] << " " << data[2] << " "
<< data[3] << " " << data[4] << " " << data[5] << " " << data[6]
<< " " << data[7] << std::endl;
}
uint64_t timestamp_ms = (uint64_t)(timestamp * 1000.0);
protoTable.add_columnvalues(uint64ToString(timestamp_ms)); /* timestamp */
protoTable.add_columnvalues(intToString(pgn)); /* PGN */
protoTable.add_columnvalues(intToString(priority)); /* Priority */
protoTable.add_columnvalues(intToString(source)); /* Source */
protoTable.add_columnvalues(direction); /* Direction */
protoTable.add_columnvalues(intToString(length)); /* Length */
protoTable.add_columnvalues(intToString(data[0])); /* data1 */
protoTable.add_columnvalues(intToString(data[1])); /* data2 */
protoTable.add_columnvalues(intToString(data[2])); /* data3 */
protoTable.add_columnvalues(intToString(data[3])); /* data4 */
protoTable.add_columnvalues(intToString(data[4])); /* data5 */
protoTable.add_columnvalues(intToString(data[5])); /* data6 */
protoTable.add_columnvalues(intToString(data[6])); /* data7 */
protoTable.add_columnvalues(intToString(data[7])); /* data8 */
zmq::message_t create_values(protoTable.ByteSizeLong()+sizeof(uint16_t));
*((uint16_t*)create_values.data()) = TABLEMSG_ID; // ID
protoTable.SerializeToArray(create_values.data()+sizeof(uint16_t), protoTable.ByteSizeLong());
socket.send(create_values);
protoTable.clear_columnvalues();
usleep(1);
}
}
dummyFrontEnd::dummyFrontEnd():context(1),socket(context,ZMQ_PUB) {
}
void dummyFrontEnd::Init()
{
socket.connect("tcp://127.0.0.1:5555");
cout << "Connecting .... " << endl;
}
void dummyFrontEnd::SendData()
{
cout << "In SendData" << endl;
while(1) {
canlogreq canLogObj = canlogreq::default_instance();
canLogObj.set_fromhours(11);
canLogObj.set_fromminutes(7);
canLogObj.set_fromseconds(2);
canLogObj.set_fromday(16);
canLogObj.set_frommonth(5);
canLogObj.set_fromyear(2020);
canLogObj.set_tohours(12);
canLogObj.set_tominutes(7);
canLogObj.set_toseconds(4);
canLogObj.set_today(17);
canLogObj.set_tomonth(5);
canLogObj.set_toyear(2020);
zmq::message_t logsnippetmsg(canLogObj.ByteSizeLong() + sizeof(uint16_t));
*((uint16_t*)logsnippetmsg.data()) = 20;
canLogObj.SerializeToArray(logsnippetmsg.data()+sizeof(uint16_t), canLogObj.ByteSizeLong());
socket.send(logsnippetmsg);
usleep(1);
canLogObj.clear_fromhours();
canLogObj.clear_fromminutes();
canLogObj.clear_fromseconds();
canLogObj.clear_fromday();
canLogObj.clear_frommonth();
canLogObj.clear_fromyear();
canLogObj.clear_tohours();
canLogObj.clear_tominutes();
canLogObj.clear_toseconds();
canLogObj.clear_today();
canLogObj.clear_tomonth();
canLogObj.clear_toyear();
}
}
TransportLayer::TransportLayer():context(1),socket(context,ZMQ_SUB){ }
void TransportLayer::Init()
{
socket.bind("tcp://*:5555");
socket.setsockopt(ZMQ_SUBSCRIBE, "", 0);
}
void TransportLayer::Receive()
{
cout << "TransportLayer::Receive " << " I am in server " << endl;
static int count = 1;
// Producer thread.
while ( true ){
zmq::message_t request;
string protoBuf;
socket.recv(&request);
uint16_t id = *((uint16_t*)request.data());
cout << "TransportLayer : " << "request.data: " << request.data() << endl;
cout << "TransportLayer : count " << count << endl; count = count + 1;
cout << "TransportLayer : request.data.size " << request.size() << endl;
protoBuf = std::string(static_cast<char*>(request.data() + sizeof(uint16_t)), request.size() - sizeof(uint16_t));
cout << "ProtoBuf : " << protoBuf << endl;
InterfaceLayer *interfaceLayObj = InterfaceLayer::getInstance();
switch(id) {
case TABLEMSG_ID: cout << "Canlyser" << endl;
interfaceLayObj->ParseProtoBufTable(protoBuf);
break;
case LOGSNIPPET_ID: cout << "LogSnip" << endl;
interfaceLayObj->ParseProtoBufLogSnippet(protoBuf);
interfaceLayObj->logsnippetSignal(); // publish the signal
break;
default: break;
}
usleep(1);
}
}
...
retCode = zmq_setsockopt( <aSubSocketINSTANCE>, ZMQ_SUBSCRIBE, "", 0 );
assert( retCode == 0 && "FAILED: at ZMQ_SUBSCRIBE order " );
...