diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-04-17 13:43:52 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-04-29 14:52:56 -0400 |
| commit | f3e2e07201c50033bf6c9d0c6a6f068557b4f17f (patch) | |
| tree | 140b3c2d20a951ffd4abd564c3378ee2e2f9fc7c /gnuradio-runtime/lib/pagesize.cc | |
| parent | 35303ae975a5b1bdecc2492bc96e2b8e89b62a3d (diff) | |
runtime: converting runtime core to gr namespace, gnuradio include dir.
Diffstat (limited to 'gnuradio-runtime/lib/pagesize.cc')
| -rw-r--r-- | gnuradio-runtime/lib/pagesize.cc | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/pagesize.cc b/gnuradio-runtime/lib/pagesize.cc new file mode 100644 index 0000000000..373c0b6654 --- /dev/null +++ b/gnuradio-runtime/lib/pagesize.cc @@ -0,0 +1,59 @@ +/* -*- c++ -*- */ +/* + * Copyright 2003,2013 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "pagesize.h" +#include <unistd.h> +#include <stdio.h> + +namespace gr { + +#if defined(_WIN32) && defined(HAVE_GETPAGESIZE) + extern "C" size_t getpagesize(void); +#endif + + int + pagesize() + { + static int s_pagesize = -1; + + if(s_pagesize == -1) { +#if defined(HAVE_GETPAGESIZE) + s_pagesize = getpagesize(); +#elif defined (HAVE_SYSCONF) + s_pagesize = sysconf(_SC_PAGESIZE); + if(s_pagesize == -1) { + perror("_SC_PAGESIZE"); + s_pagesize = 4096; + } +#else + fprintf(stderr, "gr::pagesize: no info; setting pagesize = 4096\n"); + s_pagesize = 4096; +#endif + } + return s_pagesize; + } + +} /* namespace gr */ |