diff options
Diffstat (limited to 'nuttx/graphics/nxmu/nxmu_sendwindow.c')
-rw-r--r-- | nuttx/graphics/nxmu/nxmu_sendwindow.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/nuttx/graphics/nxmu/nxmu_sendwindow.c b/nuttx/graphics/nxmu/nxmu_sendwindow.c new file mode 100644 index 000000000..6f64ffff2 --- /dev/null +++ b/nuttx/graphics/nxmu/nxmu_sendwindow.c @@ -0,0 +1,114 @@ +/**************************************************************************** + * graphics/nxmu/nxmu_sendserver.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 <nuttx/config.h> + +#include <mqueue.h> +#include <errno.h> +#include <debug.h> + +#include "nxfe.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxmu_sendwindow + * + * Description: + * Send a message to the server detined 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. + * + * Return: + * 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 + if (!wnd || !wnd->conn) + { + 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; +} |