libcruft-util/cruft/util/memory/system.cpp

28 lines
650 B
C++

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
*/
#include "system.hpp"
#include "../cast.hpp"
#include "../posix/except.hpp"
#include <unistd.h>
///////////////////////////////////////////////////////////////////////////////
size_t
cruft::memory::pagesize (void)
{
static size_t val;
if (!val) {
val = cruft::cast::sign<unsigned long> (posix::error::try_value (sysconf (_SC_PAGE_SIZE)));
}
return val;
}