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/*****************************************************************************
* *
* PrimeSense PSCommon Library *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of PSCommon. *
* *
* Licensed 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. *
* *
*****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnOS.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XN_C_API XnBool xnOSWasKeyboardHit()
{
struct termios oldt, newt;
int ch;
int oldf;
// don't echo and don't wait for ENTER
tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
newt.c_lflag &= ~(ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
oldf = fcntl(STDIN_FILENO, F_GETFL, 0);
// make it non-blocking (so we can check without waiting)
if (0 != fcntl(STDIN_FILENO, F_SETFL, oldf | O_NONBLOCK))
{
return FALSE;
}
ch = getchar();
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
if (0 != fcntl(STDIN_FILENO, F_SETFL, oldf))
{
return FALSE;
}
if(ch != EOF)
{
ungetc(ch, stdin);
return TRUE;
}
return FALSE;
}
XN_C_API XnChar xnOSReadCharFromInput()
{
return (XnChar)getchar();
}
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