Esempio n. 1
0
int mk_conn_read(int socket)
{
    int ret;
    struct client_session *cs;
    struct sched_list_node *sched;

    MK_TRACE("[FD %i] Connection Handler / read", socket);

    /* Plugin hook */
    ret = mk_plugin_event_read(socket);

    switch(ret) {
    case MK_PLUGIN_RET_EVENT_OWNED:
        return MK_PLUGIN_RET_CONTINUE;
    case MK_PLUGIN_RET_EVENT_CLOSE:
        return -1;
    case MK_PLUGIN_RET_EVENT_CONTINUE:
        break; /* just return controller to invoker */
    }

    sched = mk_sched_get_thread_conf();
    cs = mk_session_get(socket);
    if (!cs) {
        /* Note: Linux don't set TCP_NODELAY socket flag by default */
        if (mk_socket_set_tcp_nodelay(socket) != 0) {
            mk_warn("TCP_NODELAY failed");
        }

        /* Create session for the client */
        MK_TRACE("[FD %i] Create session", socket);
        cs = mk_session_create(socket, sched);
        if (!cs) {
            return -1;
        }
    }

    /* Read incomming data */
    ret = mk_handler_read(socket, cs);
    if (ret > 0) {
        if (mk_http_pending_request(cs) == 0) {
            mk_epoll_change_mode(sched->epoll_fd,
                                 socket, MK_EPOLL_WRITE, MK_EPOLL_LEVEL_TRIGGERED);
        }
        else if (cs->body_length + 1 >= config->max_request_size) {
            /*
             * Request is incomplete and our buffer is full,
             * close connection
             */
            mk_session_remove(socket);
            return -1;
        }
        else {
            MK_TRACE("[FD %i] waiting for pending data", socket);
        }
    }

    return ret;
}
Esempio n. 2
0
int mk_conn_read(int socket)
{
    int ret;
    struct client_session *cs;
    struct sched_list_node *sched;

    MK_TRACE("[FD %i] Connection Handler / read", socket);

    /* Plugin hook */
    ret = mk_plugin_event_read(socket);

    switch(ret) {
    case MK_PLUGIN_RET_EVENT_OWNED:
        return MK_PLUGIN_RET_CONTINUE;
    case MK_PLUGIN_RET_EVENT_CLOSE:
        return -1;
    case MK_PLUGIN_RET_EVENT_CONTINUE:
        break; /* just return controller to invoker */
    }

    sched = mk_sched_get_thread_conf();
    cs = mk_session_get(socket);
    if (!cs) {
        /* Check if is this a new connection for the Scheduler */
        if (!mk_sched_get_connection(sched, socket)) {
            MK_TRACE("[FD %i] Registering new connection");
            if (mk_sched_register_client(socket, sched) == -1) {
                MK_TRACE("[FD %i] Close requested", socket);
                return -1;
            }
            /*
             * New connections are not registered yet into the epoll
             * event state list, we need to do it manually
             */
            mk_epoll_state_set(socket,
                               MK_EPOLL_READ,
                               MK_EPOLL_LEVEL_TRIGGERED,
                               (EPOLLERR | EPOLLHUP | EPOLLRDHUP | EPOLLIN));
            return 0;
        }

        /* Create session for the client */
        MK_TRACE("[FD %i] Create session", socket);
        cs = mk_session_create(socket, sched);
        if (!cs) {
            return -1;
        }
    }

    /* Read incomming data */
    ret = mk_handler_read(socket, cs);
    if (ret > 0) {
        if (mk_http_pending_request(cs) == 0) {
            mk_epoll_change_mode(sched->epoll_fd,
                                 socket, MK_EPOLL_WRITE, MK_EPOLL_LEVEL_TRIGGERED);
        }
        else if (cs->body_length + 1 >= (unsigned int) config->max_request_size) {
            /*
             * Request is incomplete and our buffer is full,
             * close connection
             */
            mk_session_remove(socket);
            return -1;
        }
        else {
            MK_TRACE("[FD %i] waiting for pending data", socket);
        }
    }

    return ret;
}