/* $NetBSD: meminfo.c,v 1.2.4.2 2024/02/29 12:35:01 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * 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 https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #include #include #include #if defined(HAVE_SYS_SYSCTL_H) && !defined(__linux__) #include #endif /* if defined(HAVE_SYS_SYSCTL_H) && !defined(__linux__) */ uint64_t isc_meminfo_totalphys(void) { #if defined(CTL_HW) && (defined(HW_PHYSMEM64) || defined(HW_MEMSIZE)) int mib[2]; mib[0] = CTL_HW; #if defined(HW_MEMSIZE) mib[1] = HW_MEMSIZE; #elif defined(HW_PHYSMEM64) mib[1] = HW_PHYSMEM64; #endif /* if defined(HW_MEMSIZE) */ uint64_t size = 0; size_t len = sizeof(size); if (sysctl(mib, 2, &size, &len, NULL, 0) == 0) { return (size); } #endif /* if defined(CTL_HW) && (defined(HW_PHYSMEM64) || defined(HW_MEMSIZE)) \ * */ #if defined(_SC_PHYS_PAGES) && defined(_SC_PAGESIZE) long pages = sysconf(_SC_PHYS_PAGES); long pagesize = sysconf(_SC_PAGESIZE); if (pages == -1 || pagesize == -1) { return (0); } return ((size_t)pages * pagesize); #endif /* if defined(_SC_PHYS_PAGES) && defined(_SC_PAGESIZE) */ return (0); }