incubator-nuttx/graphics/nxmu/nxmu_sendclientwindow.c

72 lines
2.4 KiB
C

/****************************************************************************
* graphics/nxmu/nxmu_sendclientwindow.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <mqueue.h>
#include <assert.h>
#include <errno.h>
#include <debug.h>
#include "nxmu.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxmu_sendclientwindow
*
* Description:
* Send a message to the client at NX_CLIMSG_PRIO priority
*
* Input Parameters:
* wnd - A pointer to the back-end window structure
* msg - A pointer to the message to send
* msglen - The length of the message in bytes.
*
* Returned Value:
* OK on success; ERROR on failure with errno set appropriately
*
****************************************************************************/
int nxmu_sendclientwindow(FAR struct nxbe_window_s *wnd, FAR const void *msg,
size_t msglen)
{
int ret = OK;
DEBUGASSERT(wnd != NULL && wnd->conn != NULL && msg != NULL);
/* Ignore messages destined to a blocked window (no errors reported) */
if (!NXBE_ISBLOCKED(wnd))
{
/* Send the message to the server */
ret = nxmu_sendclient(wnd->conn, msg, msglen);
}
return ret;
}