multithreading - C++ Threads + Networking, accept fails as soon as I introduce threads -

i trying implement small c++ server. want receive connections clients, , handle of these connections in own threads. far good. long introduce no threads, works fine, try create thread client, accept returns -1/error.

here code:

void server::run() {   cout << "starting server on port " << this->port << "..." << endl;    this->socket_fd = socket(af_inet, sock_stream, 0);   if (this->socket_fd < 0) {     perror("creating socket");     exit(1);   }    struct sockaddr_in myaddr;   myaddr.sin_family = af_inet;   myaddr.sin_port = htons(this->port);   inet_aton("192.168.201.58", &myaddr.sin_addr);    if ( bind(this->socket_fd, (struct sockaddr*)&myaddr, sizeof(myaddr))) {     perror("bind");     exit(1);   }   if (listen(this->socket_fd, 5)) {     perror("listen");     exit(1);   }    /* waiting clients */   cout << "waiting connection..." << endl;   int client_fd;   struct sockaddr_in remote_addr;   socklen_t remote_addr_len;    while (this->running) {     client_fd = accept(this->socket_fd, (struct sockaddr*)&remote_addr, &remote_addr_len);     if (client_fd <= 0) {         perror("accept");         this->running = false;         continue;     }      cout << "got new client address " << inet_ntoa(remote_addr.sin_addr) << endl;      client new_client(client_fd, remote_addr.sin_addr);     //new_client.run();     std::thread t ( &client::run, &new_client );     //t.detach();    } } 

when trying connect via telnet, "accept: invalid argument". comment out line create thread

    std::thread t ( &client::run, &new_client ); 

everything works fine.

i appreciate hints.

try:

std::thread t ( &client::run, std::move(new_client) ); 

according the documentation, that's how should call it.