libexplain: libexplain/getpagesize.c Source File

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00001 /*
00002  * libexplain - a library of system-call-specific strerror replacements
00003  * Copyright (C) 2010, 2013 Peter Miller
00004  * Written by Peter Miller <pmiller@opensource.org.au>
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU Lesser General Public License as
00008  * published by the Free Software Foundation; either version 3 of the
00009  * License, or (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
00018  */
00019 
00020 #include <libexplain/ac/unistd.h>
00021 
00022 #include <libexplain/getpagesize.h>
00023 
00024 
00025 int
00026 explain_getpagesize(void)
00027 {
00028 #ifdef HAVE_GETPAGESIZE
00029     return getpagesize();
00030 #elif defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
00031     return sysconf(_SC_PAGESIZE);
00032 #else
00033     return -1;
00034 #endif
00035 }
00036 
00037 
00038 /* vim: set ts=8 sw=4 et : */