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Copy pathsrv.cpp
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141 lines (104 loc) · 3.65 KB
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// Copyright (c) 2020 by Chrono
//
// g++ srv.cpp -std=c++14 -I../common -I../common/include -I/usr/local/include/luajit-2.1 -lluajit-5.1 -ldl -lzmq -lpthread -lcpr -lcurl -o a.out;./a.out
// g++ srv.cpp -std=c++14 -I../common -I../common/include -I/usr/local/include/luajit-2.1 -lluajit-5.1 -ldl -lzmq -lpthread -lcpr -lcurl -g -O0 -o a.out
// g++ srv.cpp -std=c++14 -I../common -I../common/include -I/usr/local/include/luajit-2.1 -lluajit-5.1 -ldl -lzmq -lpthread -lcpr -lcurl -g -O0 -o a.out;./a.out
//#include <iostream>
#include "cpplang.hpp"
#include "Summary.hpp"
#include "Zmq.hpp"
#include "Config.hpp"
// you should put json.hpp in ../common
#include "json.hpp"
#include <cstdio>
#include <cpr/cpr.h>
USING_NAMESPACE(std);
USING_NAMESPACE(cpp_study);
static
auto debug_print = [](auto& b)
{
using json_t = nlohmann::json;
json_t j;
j["id"] = b.id();
j["sold"] = b.sold();
j["revenue"] = b.revenue();
//j["average"] = b.average();
std::cout << j.dump(2) << std::endl;
};
int main()
try
{
cout << "hello cpp_study server" << endl;
Config conf;
conf.load("./conf.lua");
Summary sum;
std::atomic_int count {0};
// todo: try-catch
auto recv_cycle = [&]()
{
using zmq_ctx = ZmqContext<1>;
// zmq recv
auto sock = zmq_ctx::recv_sock();
sock.bind(conf.get<string>("config.zmq_ipc_addr"));
assert(sock.connected());
for(;;) {
// xxx : shared_ptr/unique_ptr
auto msg_ptr = std::make_shared<zmq_message_type>();
sock.recv(msg_ptr.get());
//cout << msg_ptr->size() << endl;
++count;
cout << count << endl;
//printf("count = %d\n", static_cast<int>(count));
// async process msg
// todo: try-catch
//auto f = std::async(std::launch::async,
std::thread(
[&sum, msg_ptr]()
//[&sum, &count](decltype(msg_ptr) ptr)
{
//cout << ptr.unique() << endl;
SalesData book;
// xxx: json/msgpack/protobuf
auto obj = msgpack::unpack(
msg_ptr->data<char>(), msg_ptr->size()).get();
obj.convert(book);
//cout << book.id() << endl;
//debug_print(book);
sum.add_sales(book);
}).detach(); // async
} // for(;;)
}; // recv_cycle lambda
auto log_cycle = [&]()
{
auto http_addr = conf.get<string>("config.http_addr");
auto time_interval = conf.get<int>("config.time_interval");
for(;;) {
std::this_thread::sleep_for(time_interval * 1s);
//cout << "log_cycle" << endl;
//auto info = sum.minmax_sales();
//cout << "log_cycle get info" << endl;
using json_t = nlohmann::json;
json_t j;
j["count"] = static_cast<int>(count);
j["minmax"] = sum.minmax_sales();//{info.first, info.second};
auto res = cpr::Post(
cpr::Url{http_addr},
cpr::Body{j.dump()},
cpr::Timeout{200ms}
);
if (res.status_code != 200) {
cerr << "http post failed" << endl;
//printf("http post failed\n");
}
} // for(;;)
}; // log_cycle lambda
// launch log_cycle
auto fu1 = std::async(std::launch::async, log_cycle);
// launch recv_cycle then wait
auto fu2 = std::async(std::launch::async, recv_cycle);
fu2.wait();
}
catch(std::exception& e)
{
std::cerr << e.what() << std::endl;
}