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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
commit | 45d6379135504814ab723b57f0eb8be23393a51d (patch) | |
tree | d4f2ec4acca824a8446387a758b0ce4238a4dffa /lib/isc/unix/meminfo.c | |
parent | Initial commit. (diff) | |
download | bind9-45d6379135504814ab723b57f0eb8be23393a51d.tar.xz bind9-45d6379135504814ab723b57f0eb8be23393a51d.zip |
Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/isc/unix/meminfo.c')
-rw-r--r-- | lib/isc/unix/meminfo.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/lib/isc/unix/meminfo.c b/lib/isc/unix/meminfo.c new file mode 100644 index 0000000..612ccea --- /dev/null +++ b/lib/isc/unix/meminfo.c @@ -0,0 +1,50 @@ +/* + * 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 <inttypes.h> +#include <unistd.h> + +#include <isc/meminfo.h> +#if defined(HAVE_SYS_SYSCTL_H) && !defined(__linux__) +#include <sys/sysctl.h> +#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); +} |