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#include <functional>
#include <mutex>
#include <set>
#include <thread>
#include <websocketpp/config/asio_no_tls.hpp>
#include <websocketpp/server.hpp>
typedef websocketpp::server<websocketpp::config::asio> server;
using websocketpp::connection_hdl;
class count_server {
public:
count_server() : m_count(0) {
m_server.init_asio();
m_server.set_open_handler(bind(&count_server::on_open,this,_1));
m_server.set_close_handler(bind(&count_server::on_close,this,_1));
}
void on_open(connection_hdl hdl) {
std::lock_guard<std::mutex> lock(m_mutex);
m_connections.insert(hdl);
}
void on_close(connection_hdl hdl) {
std::lock_guard<std::mutex> lock(m_mutex);
m_connections.erase(hdl);
}
void count() {
while (1) {
sleep(1);
m_count++;
std::stringstream ss;
ss << m_count;
std::lock_guard<std::mutex> lock(m_mutex);
for (auto it : m_connections) {
m_server.send(it,ss.str(),websocketpp::frame::opcode::text);
}
}
}
void run(uint16_t port) {
m_server.listen(port);
m_server.start_accept();
m_server.run();
}
private:
typedef std::set<connection_hdl,std::owner_less<connection_hdl>> con_list;
int m_count;
server m_server;
con_list m_connections;
std::mutex m_mutex;
};
int main() {
count_server server;
std::thread t(std::bind(&count_server::count,&server));
server.run(9002);
}
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