b0908eec4b
When 'newlib' was introduced, in the commit referenced
below, the use of that glibc '__BEGIN_DECLS' macro was
standardized. However, as issue #88 revealed, this may
result in a fatal build error with other environments.
So, this patch just trades that macro for the standard
'#ifdef __cplusplus' conventions (thus avoiding use of
all those '#include <features.h>' directives as well).
Reference(s):
. newlib introduced
commit a410e236ab
. procps-ng-3.3.13 issue
https://gitlab.com/procps-ng/procps/issues/88
. some additional discussion
https://www.freelists.org/post/procps/PATCH-Replace-glibcspecific-macros-in-procnumah,1
. musl wiki (see: sys/cdefs.h error messages)
https://wiki.musl-libc.org/faq.html
Signed-off-by: Jim Warner <james.warner@comcast.net>
178 lines
6.4 KiB
C
178 lines
6.4 KiB
C
/*
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* libprocps - Library to read proc filesystem
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef PROCPS_MEMINFO_H
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#define PROCPS_MEMINFO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum meminfo_item {
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MEMINFO_noop, // ( never altered )
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MEMINFO_extra, // ( reset to zero )
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/*
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note: all of the following values are expressed as KiB
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*/
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MEMINFO_MEM_ACTIVE, // ul_int
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MEMINFO_MEM_ACTIVE_ANON, // ul_int
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MEMINFO_MEM_ACTIVE_FILE, // ul_int
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MEMINFO_MEM_ANON, // ul_int
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MEMINFO_MEM_AVAILABLE, // ul_int
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MEMINFO_MEM_BOUNCE, // ul_int
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MEMINFO_MEM_BUFFERS, // ul_int
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MEMINFO_MEM_CACHED, // ul_int
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MEMINFO_MEM_CACHED_ALL, // ul_int
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MEMINFO_MEM_COMMIT_LIMIT, // ul_int
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MEMINFO_MEM_COMMITTED_AS, // ul_int
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MEMINFO_MEM_HARD_CORRUPTED, // ul_int
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MEMINFO_MEM_DIRTY, // ul_int
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MEMINFO_MEM_FREE, // ul_int
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MEMINFO_MEM_HUGE_ANON, // ul_int
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MEMINFO_MEM_HUGE_FREE, // ul_int
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MEMINFO_MEM_HUGE_RSVD, // ul_int
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MEMINFO_MEM_HUGE_SIZE, // ul_int
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MEMINFO_MEM_HUGE_SURPLUS, // ul_int
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MEMINFO_MEM_HUGE_TOTAL, // ul_int
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MEMINFO_MEM_INACTIVE, // ul_int
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MEMINFO_MEM_INACTIVE_ANON, // ul_int
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MEMINFO_MEM_INACTIVE_FILE, // ul_int
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MEMINFO_MEM_KERNEL_STACK, // ul_int
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MEMINFO_MEM_LOCKED, // ul_int
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MEMINFO_MEM_MAPPED, // ul_int
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MEMINFO_MEM_NFS_UNSTABLE, // ul_int
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MEMINFO_MEM_PAGE_TABLES, // ul_int
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MEMINFO_MEM_SHARED, // ul_int
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MEMINFO_MEM_SHMEM_HUGE, // ul_int
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MEMINFO_MEM_SHMEM_HUGE_MAP, // ul_int
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MEMINFO_MEM_SLAB, // ul_int
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MEMINFO_MEM_SLAB_RECLAIM, // ul_int
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MEMINFO_MEM_SLAB_UNRECLAIM, // ul_int
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MEMINFO_MEM_TOTAL, // ul_int
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MEMINFO_MEM_UNEVICTABLE, // ul_int
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MEMINFO_MEM_USED, // ul_int
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MEMINFO_MEM_VM_ALLOC_CHUNK, // ul_int
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MEMINFO_MEM_VM_ALLOC_TOTAL, // ul_int
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MEMINFO_MEM_VM_ALLOC_USED, // ul_int
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MEMINFO_MEM_WRITEBACK, // ul_int
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MEMINFO_MEM_WRITEBACK_TMP, // ul_int
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MEMINFO_DELTA_ACTIVE, // s_int
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MEMINFO_DELTA_ACTIVE_ANON, // s_int
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MEMINFO_DELTA_ACTIVE_FILE, // s_int
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MEMINFO_DELTA_ANON, // s_int
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MEMINFO_DELTA_AVAILABLE, // s_int
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MEMINFO_DELTA_BOUNCE, // s_int
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MEMINFO_DELTA_BUFFERS, // s_int
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MEMINFO_DELTA_CACHED, // s_int
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MEMINFO_DELTA_CACHED_ALL, // s_int
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MEMINFO_DELTA_COMMIT_LIMIT, // s_int
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MEMINFO_DELTA_COMMITTED_AS, // s_int
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MEMINFO_DELTA_HARD_CORRUPTED, // s_int
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MEMINFO_DELTA_DIRTY, // s_int
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MEMINFO_DELTA_FREE, // s_int
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MEMINFO_DELTA_HUGE_ANON, // s_int
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MEMINFO_DELTA_HUGE_FREE, // s_int
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MEMINFO_DELTA_HUGE_RSVD, // s_int
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MEMINFO_DELTA_HUGE_SIZE, // s_int
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MEMINFO_DELTA_HUGE_SURPLUS, // s_int
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MEMINFO_DELTA_HUGE_TOTAL, // s_int
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MEMINFO_DELTA_INACTIVE, // s_int
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MEMINFO_DELTA_INACTIVE_ANON, // s_int
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MEMINFO_DELTA_INACTIVE_FILE, // s_int
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MEMINFO_DELTA_KERNEL_STACK, // s_int
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MEMINFO_DELTA_LOCKED, // s_int
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MEMINFO_DELTA_MAPPED, // s_int
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MEMINFO_DELTA_NFS_UNSTABLE, // s_int
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MEMINFO_DELTA_PAGE_TABLES, // s_int
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MEMINFO_DELTA_SHARED, // s_int
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MEMINFO_DELTA_SHMEM_HUGE, // s_int
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MEMINFO_DELTA_SHMEM_HUGE_MAP, // s_int
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MEMINFO_DELTA_SLAB, // s_int
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MEMINFO_DELTA_SLAB_RECLAIM, // s_int
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MEMINFO_DELTA_SLAB_UNRECLAIM, // s_int
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MEMINFO_DELTA_TOTAL, // s_int
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MEMINFO_DELTA_UNEVICTABLE, // s_int
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MEMINFO_DELTA_USED, // s_int
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MEMINFO_DELTA_VM_ALLOC_CHUNK, // s_int
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MEMINFO_DELTA_VM_ALLOC_TOTAL, // s_int
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MEMINFO_DELTA_VM_ALLOC_USED, // s_int
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MEMINFO_DELTA_WRITEBACK, // s_int
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MEMINFO_DELTA_WRITEBACK_TMP, // s_int
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MEMINFO_MEMHI_FREE, // ul_int
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MEMINFO_MEMHI_TOTAL, // ul_int
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MEMINFO_MEMHI_USED, // ul_int
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MEMINFO_MEMLO_FREE, // ul_int
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MEMINFO_MEMLO_TOTAL, // ul_int
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MEMINFO_MEMLO_USED, // ul_int
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MEMINFO_SWAP_CACHED, // ul_int
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MEMINFO_SWAP_FREE, // ul_int
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MEMINFO_SWAP_TOTAL, // ul_int
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MEMINFO_SWAP_USED, // ul_int
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MEMINFO_SWAP_DELTA_CACHED, // s_int
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MEMINFO_SWAP_DELTA_FREE, // s_int
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MEMINFO_SWAP_DELTA_TOTAL, // s_int
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MEMINFO_SWAP_DELTA_USED // s_int
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};
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struct meminfo_result {
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enum meminfo_item item;
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union {
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signed int s_int;
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unsigned long ul_int;
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} result;
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};
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struct meminfo_stack {
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struct meminfo_result *head;
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};
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#define MEMINFO_GET( info, actual_enum, type ) ( { \
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struct meminfo_result *r = procps_meminfo_get( info, actual_enum ); \
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r ? r->result . type : 0; } )
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#define MEMINFO_VAL( relative_enum, type, stack, info ) \
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stack -> head [ relative_enum ] . result . type
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struct meminfo_info;
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int procps_meminfo_new (struct meminfo_info **info);
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int procps_meminfo_ref (struct meminfo_info *info);
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int procps_meminfo_unref (struct meminfo_info **info);
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struct meminfo_result *procps_meminfo_get (
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struct meminfo_info *info,
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enum meminfo_item item);
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struct meminfo_stack *procps_meminfo_select (
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struct meminfo_info *info,
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enum meminfo_item *items,
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int numitems);
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#ifdef __cplusplus
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}
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#endif
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#endif
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