96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/****************************************************************************
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* libnx/nxmu/nx_disconnect.c
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*
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* Copyright (C) 2008-2009, 2011-2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <mqueue.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/nx/nxmu.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nx_disconnect
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*
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* Description:
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* Disconnect a client from the NX server and/or free resources reserved
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* by nx_connect/nx_connectinstance.
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*
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* Input Parameters:
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* handle - the handle returned by nx_connect
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*
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* Returned Value:
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* OK on success; ERROR on failure with the errno set appropriately.
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* NOTE that handle will no long be valid upon return.
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*
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****************************************************************************/
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void nx_disconnect(NXHANDLE handle)
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{
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FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle;
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struct nxsvrmsg_s outmsg;
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char climqname[NX_CLIENT_MXNAMELEN];
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int ret;
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/* Inform the server that this client no longer exists */
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outmsg.msgid = NX_SVRMSG_DISCONNECT;
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outmsg.conn = conn;
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/* We will finish the teardown upon receipt of the DISCONNECTED message */
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ret = nxmu_sendserver(conn, &outmsg, sizeof(struct nxsvrmsg_s));
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if (ret < 0)
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{
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gerr("ERROR: nxmu_sendserver() returned %d\n", ret);
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}
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else
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{
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snprintf(climqname, sizeof(climqname),
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NX_CLIENT_MQNAMEFMT, conn->cid);
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(void)mq_unlink(climqname);
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}
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}
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