diff --git a/examples/nxhello/nxhello_listener.c b/examples/nxhello/nxhello_listener.c new file mode 100644 index 000000000..90246fd1f --- /dev/null +++ b/examples/nxhello/nxhello_listener.c @@ -0,0 +1,94 @@ +/**************************************************************************** + * examples/nxterm/nxhello_listener.c + * + * Copyright (C) 2017 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include + +#include "nxhello.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxhello_listener + ****************************************************************************/ + +FAR void *nxhello_listener(FAR void *arg) +{ + int ret; + + /* Process events forever */ + + for (;;) + { + /* Handle the next event. If we were configured blocking, then + * we will stay right here until the next event is received. Since + * we have dedicated a while thread to servicing events, it would + * be most natural to also select CONFIG_NX_BLOCKING -- if not, the + * following would be a tight infinite loop (unless we added addition + * logic with nx_eventnotify and sigwait to pace it). + */ + + ret = nx_eventhandler(g_nxhello.hnx); + if (ret < 0) + { + /* An error occurred... assume that we have lost connection with + * the server. + */ + + printf("nxhello_listener: Lost server connection: %d\n", errno); + exit(EXIT_FAILURE); + } + + /* If we received a message, we must be connected */ + + if (!g_nxhello.connected) + { + g_nxhello.connected = true; + sem_post(&g_nxhello.eventsem); + printf("nxhello_listener: Connected\n"); + } + } +}