/**************************************************************************** * libs/libnx/nxmu/nx_disconnect.c * * Copyright (C) 2008-2009, 2011-2013 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 #include /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nx_disconnect * * Description: * Disconnect a client from the NX server and/or free resources reserved * by nx_connect/nx_connectinstance. * * Input Parameters: * handle - the handle returned by nx_connect * * Returned Value: * OK on success; ERROR on failure with the errno set appropriately. * NOTE that handle will no long be valid upon return. * ****************************************************************************/ void nx_disconnect(NXHANDLE handle) { FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle; struct nxsvrmsg_s outmsg; char climqname[NX_CLIENT_MXNAMELEN]; int ret; /* Inform the server that this client no longer exists */ outmsg.msgid = NX_SVRMSG_DISCONNECT; outmsg.conn = conn; /* We will finish the teardown upon receipt of the DISCONNECTED message */ ret = nxmu_sendserver(conn, &outmsg, sizeof(struct nxsvrmsg_s)); if (ret < 0) { gerr("ERROR: nxmu_sendserver() returned %d\n", ret); } else { snprintf(climqname, sizeof(climqname), NX_CLIENT_MQNAMEFMT, conn->cid); (void)mq_unlink(climqname); } }