barrier/src/lib/base/NonBlockingStream.h

51 lines
1.3 KiB
C++

/*
* barrier -- mouse and keyboard sharing utility
* Copyright (C) 2008 Debauchee Open Source Group
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file LICENSE that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
// windows doesn't have a unistd.h so this class won't work as-written.
// at the moment barrier doesn't need this functionality on windows so
// it's left as a stub to be optimized out
#if defined(_WIN32)
class NonBlockingStream
{
public:
bool try_read_char(char &ch) const { return false; };
};
#else // non-windows platforms
struct termios;
class NonBlockingStream
{
public:
explicit NonBlockingStream(int fd = 0);
~NonBlockingStream();
bool try_read_char(char &ch) const;
void restoreTerminal(void) const;
private:
int _fd;
termios * _p_ta_previous;
int _cntl_previous;
};
#endif