C++ (Cpp) do_TCP_unconfirmed示例

示例#1

文件： TCP_server.c 项目： FashtimeDotCom/ProjectTox-Core

void do_TCP_server(TCP_Server *TCP_server)
{
    unix_time_update();

    do_TCP_accept_new(TCP_server);
    do_TCP_incomming(TCP_server);
    do_TCP_unconfirmed(TCP_server);
    do_TCP_confirmed(TCP_server);
}

示例#2

文件： TCP_server.c 项目： ameenross/toxcore

static void do_TCP_epoll(TCP_Server *TCP_server)
{
#define MAX_EVENTS 16
    struct epoll_event events[MAX_EVENTS];
    int nfds;

    while ((nfds = epoll_wait(TCP_server->efd, events, MAX_EVENTS, 0)) > 0) {
        int n;

        for (n = 0; n < nfds; ++n) {
            sock_t sock = events[n].data.u64 & 0xFFFFFFFF;
            int status = (events[n].data.u64 >> 32) & 0xFFFF, index = (events[n].data.u64 >> 48);

            if ((events[n].events & EPOLLERR) || (events[n].events & EPOLLHUP)) {
                switch (status) {
                    case TCP_SOCKET_LISTENING: {
                        //should never happen
                        break;
                    }

                    case TCP_SOCKET_INCOMING: {
                        kill_TCP_connection(&TCP_server->incomming_connection_queue[index]);
                        break;
                    }

                    case TCP_SOCKET_UNCONFIRMED: {
                        kill_TCP_connection(&TCP_server->unconfirmed_connection_queue[index]);
                        break;
                    }

                    case TCP_SOCKET_CONFIRMED: {
                        kill_accepted(TCP_server, index);
                        break;
                    }
                }

                continue;
            }


            if (!(events[n].events & EPOLLIN)) {
                continue;
            }

            switch (status) {
                case TCP_SOCKET_LISTENING: {
                    //socket is from socks_listening, accept connection
                    struct sockaddr_storage addr;
                    unsigned int addrlen = sizeof(addr);
                    sock_t sock_new;

                    sock_new = accept(sock, (struct sockaddr *)&addr, &addrlen);

                    int index_new = TCP_server->incomming_connection_queue_index % MAX_INCOMMING_CONNECTIONS;

                    if (!accept_connection(TCP_server, sock_new)) {
                        break;
                    }

                    struct epoll_event ev = {
                        .events = EPOLLIN | EPOLLET,
                        .data.u64 = sock_new | ((uint64_t)TCP_SOCKET_INCOMING << 32) | ((uint64_t)index_new << 48)
                    };

                    if (epoll_ctl(TCP_server->efd, EPOLL_CTL_ADD, sock_new, &ev) == -1) {
                        kill_TCP_connection(&TCP_server->incomming_connection_queue[index_new]);
                        break;
                    }

                    break;
                }

                case TCP_SOCKET_INCOMING: {
                    int index_new;

                    if ((index_new = do_incoming(TCP_server, index)) != -1) {
                        events[n].events = EPOLLIN | EPOLLET;
                        events[n].data.u64 = sock | ((uint64_t)TCP_SOCKET_UNCONFIRMED << 32) | ((uint64_t)index_new << 48);

                        if (epoll_ctl(TCP_server->efd, EPOLL_CTL_MOD, sock, &events[n]) == -1) {
                            kill_TCP_connection(&TCP_server->unconfirmed_connection_queue[index_new]);
                            break;
                        }
                    }

                    break;
                }

                case TCP_SOCKET_UNCONFIRMED: {
                    int index_new;

                    if ((index_new = do_unconfirmed(TCP_server, index)) != -1) {
                        events[n].events = EPOLLIN | EPOLLET;
                        events[n].data.u64 = sock | ((uint64_t)TCP_SOCKET_CONFIRMED << 32) | ((uint64_t)index_new << 48);

                        if (epoll_ctl(TCP_server->efd, EPOLL_CTL_MOD, sock, &events[n]) == -1) {
                            //remove from confirmed connections
                            kill_accepted(TCP_server, index_new);
                            break;
                        }
                    }

                    break;
                }

                case TCP_SOCKET_CONFIRMED: {
                    do_confirmed_recv(TCP_server, index);
                    break;
                }
            }
        }
    }

#undef MAX_EVENTS
}
#endif

void do_TCP_server(TCP_Server *TCP_server)
{
    unix_time_update();

#ifdef TCP_SERVER_USE_EPOLL
    do_TCP_epoll(TCP_server);

#else
    do_TCP_accept_new(TCP_server);
    do_TCP_incomming(TCP_server);
    do_TCP_unconfirmed(TCP_server);
#endif

    do_TCP_confirmed(TCP_server);
}