98 lines
3.8 KiB
C
98 lines
3.8 KiB
C
/****************************************************************************
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* apps/graphics/nuttx/pdcutil.c
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*
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* Copyright (C) 2017 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 <unistd.h>
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#include <poll.h>
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#include "pdcnuttx.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: PDC_beep
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*
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* Description:
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* Emits a short audible beep. If this is not possible on your platform,
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* you must set SP->audible to false during initialization (i.e., from
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* PDC_scr_open() -- not here); otherwise, set it to true. This function
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* is called from beep().
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*
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****************************************************************************/
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void PDC_beep(void)
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{
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PDC_LOG(("PDC_beep() - called\n"));
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}
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/****************************************************************************
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* Name: PDC_napms
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*
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* Description:
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* This is the core delay routine, called by napms(). It pauses for about
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* (the X/Open spec says "at least") ms milliseconds, then returns. High
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* degrees of accuracy and precision are not expected (though desirable, if
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* you can achieve them). More important is that this function gives back
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* the process' time slice to the OS, so that PDCurses idles at low CPU
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* usage.
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*
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****************************************************************************/
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void PDC_napms(int ms)
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{
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PDC_LOG(("PDC_napms() - called: ms=%d\n", ms));
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usleep(ms * 1000);
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}
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/****************************************************************************
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* Name: PDC_sysname
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*
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* Description:
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* Returns a short string describing the platform, such as "DOS" or "X11".
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* This is used by longname(). It must be no more than 100 characters; it
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* should be much, much shorter (existing platforms use no more than 5).
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*
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****************************************************************************/
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const char *PDC_sysname(void)
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{
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return "NuttX";
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}
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