Mercurial > octave
view liboctave/wrappers/wait-for-input.c @ 32089:212145b8e5f0
maint: Merge stable to default.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Fri, 12 May 2023 08:03:14 +0200 |
parents | 597f3ee61a48 |
children | 2e484f9f1f18 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2016-2023 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave 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 Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// // select may be provided by gnulib. We don't include gnulib headers // directly in Octave's C++ source files to avoid problems that may be // caused by the way that gnulib overrides standard library functions. // We don't need select directly, we just need to use it to wait for // input on an open file descriptor. #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <sys/select.h> #include "wait-for-input.h" int octave_wait_for_input (int fid) { int retval = -1; #if defined (HAVE_SELECT) if (fid >= 0) { fd_set set; FD_ZERO (&set); FD_SET (fid, &set); retval = select (FD_SETSIZE, &set, 0, 0, 0); } #else octave_unused_parameter (fid); retval = 1; #endif return retval; }