nuttx/libs/libnx/nxmu/nxmu_sendwindow.c
Alin Jerpelea 88fa869a04 libnx: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-25 01:44:30 -08:00

81 lines
2.5 KiB
C

/****************************************************************************
* libs/libnx/nxmu/nxmu_sendwindow.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 <errno.h>
#include <debug.h>
#include <nuttx/nx/nxbe.h>
#include <nuttx/nx/nxmu.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxmu_sendwindow
*
* Description:
* Send a message to the server destined for a specific window at
* NX_SVRMSG_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_sendwindow(FAR struct nxbe_window_s *wnd, FAR const void *msg,
size_t msglen)
{
int ret = OK;
/* Sanity checking */
#ifdef CONFIG_DEBUG_FEATURES
if (!wnd || !wnd->conn)
{
set_errno(EINVAL);
return ERROR;
}
#endif
/* Ignore messages destined to a blocked window (no errors reported) */
if (!NXBE_ISBLOCKED(wnd))
{
/* Send the message to the server */
ret = nxmu_sendserver(wnd->conn, msg, msglen);
}
return ret;
}