diff options
| author | Ben Reynwar <ben@reynwar.net> | 2013-05-19 02:55:33 -0700 |
|---|---|---|
| committer | Ben Reynwar <ben@reynwar.net> | 2013-05-19 02:55:33 -0700 |
| commit | bb01988e75d50d82cbb44c1a49c86c1d08f05665 (patch) | |
| tree | 0528dac14476d37f2cde7374a8fcb3428f879c69 /gnuradio-runtime/lib/pagesize.cc | |
| parent | e4f0319eced22c112f7e6a4cc45bc2036d285332 (diff) | |
| parent | 0fa219774dcf9141ae91204f948c029b05673f3f (diff) | |
Merged in next_docs branch.
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 */ |