diff options
| author | Ben Reynwar <ben@reynwar.net> | 2013-04-02 23:04:08 -0700 |
|---|---|---|
| committer | Ben Reynwar <ben@reynwar.net> | 2013-04-02 23:04:08 -0700 |
| commit | c6dbde23b256a41b3d92cb4ad6b63287095d53c7 (patch) | |
| tree | 71db12ea2e1667770c22568dcdf5e0857d5f1e59 /gnuradio-runtime/lib/gr_pagesize.cc | |
| parent | 22b70d0889ef3c51e27a31ee18d153093a55cbb8 (diff) | |
| parent | 98758cbfa9a2aff714952d19e773bc370dfa2185 (diff) | |
Merged next into uninstalled import branch.
Diffstat (limited to 'gnuradio-runtime/lib/gr_pagesize.cc')
| -rw-r--r-- | gnuradio-runtime/lib/gr_pagesize.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/gr_pagesize.cc b/gnuradio-runtime/lib/gr_pagesize.cc new file mode 100644 index 0000000000..e31e05ca70 --- /dev/null +++ b/gnuradio-runtime/lib/gr_pagesize.cc @@ -0,0 +1,56 @@ +/* -*- c++ -*- */ +/* + * Copyright 2003 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 <gr_pagesize.h> +#include <unistd.h> +#include <stdio.h> + +#if defined(_WIN32) && defined(HAVE_GETPAGESIZE) +extern "C" size_t getpagesize(void); +#endif + +int +gr_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; +} + |