procps/proc/slabinfo.h
Jim Warner 82a0dcda0f library: strictly cosmetic, absolutely no code changes
This commit just contains some tweaks to comments plus
a few adjustments to whitespace for alignment purposes
and a normalization of the header inclusion #define's.

[ plus a spelling error in one header file was fixed ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2016-10-09 21:31:29 +11:00

135 lines
4.0 KiB
C

/*
* libprocps - Library to read proc filesystem
*
* Copyright (C) 1998-2005 Albert Cahalan
* Copyright (C) 2015 Craig Small <csmall@enc.com.au>
* Copyright (C) 2016 Jim Warnerl <james.warner@comcast.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PROCPS_SLABINFO_H
#define PROCPS_SLABINFO_H
#include <sys/cdefs.h>
__BEGIN_DECLS
enum slabinfo_item {
SLABINFO_noop, // ( never altered )
SLABINFO_extra, // ( reset to zero )
SLABS_OBJS, // u_int
SLABS_AOBJS, // u_int
SLABS_PAGES, // u_int
SLABS_SLABS, // u_int
SLABS_ASLABS, // u_int
SLABS_CACHES, // u_int
SLABS_ACACHES, // u_int
SLABS_SIZE_AVG, // u_int
SLABS_SIZE_MIN, // u_int
SLABS_SIZE_MAX, // u_int
SLABS_SIZE_ACTIVE, // ul_int
SLABS_SIZE_TOTAL, // ul_int
SLABS_DELTA_OBJS, // s_int
SLABS_DELTA_AOBJS, // s_int
SLABS_DELTA_PAGES, // s_int
SLABS_DELTA_SLABS, // s_int
SLABS_DELTA_ASLABS, // s_int
SLABS_DELTA_CACHES, // s_int
SLABS_DELTA_ACACHES, // s_int
SLABS_DELTA_SIZE_AVG, // s_int
SLABS_DELTA_SIZE_MIN, // s_int
SLABS_DELTA_SIZE_MAX, // s_int
SLABS_DELTA_SIZE_ACTIVE, // s_int
SLABS_DELTA_SIZE_TOTAL, // s_int
SLABNODE_NAME, // str
SLABNODE_OBJS, // u_int
SLABNODE_AOBJS, // u_int
SLABNODE_OBJ_SIZE, // u_int
SLABNODE_OBJS_PER_SLAB, // u_int
SLABNODE_PAGES_PER_SLAB, // u_int
SLABNODE_SLABS, // u_int
SLABNODE_ASLABS, // u_int
SLABNODE_USE, // u_int
SLABNODE_SIZE // ul_int
};
enum slabinfo_sort_order {
SLABINFO_SORT_ASCEND = +1,
SLABINFO_SORT_DESCEND = -1
};
struct slabinfo_result {
enum slabinfo_item item;
union {
signed int s_int;
unsigned int u_int;
unsigned long ul_int;
char *str;
} result;
};
struct slabinfo_stack {
struct slabinfo_result *head;
};
struct slabinfo_reap {
int total;
struct slabinfo_stack **stacks;
};
#define SLABINFO_GET( info, actual_enum, type ) ( { \
struct slabinfo_result *r = procps_slabinfo_get( info, actual_enum ); \
r ? r->result . type : 0; } )
#define SLABINFO_VAL( relative_enum, type, stack, info ) \
stack -> head [ relative_enum ] . result . type
struct slabinfo_info;
int procps_slabinfo_new (struct slabinfo_info **info);
int procps_slabinfo_ref (struct slabinfo_info *info);
int procps_slabinfo_unref (struct slabinfo_info **info);
struct slabinfo_result *procps_slabinfo_get (
struct slabinfo_info *info,
enum slabinfo_item item);
struct slabinfo_reap *procps_slabinfo_reap (
struct slabinfo_info *info,
enum slabinfo_item *items,
int numitems);
struct slabinfo_stack *procps_slabinfo_select (
struct slabinfo_info *info,
enum slabinfo_item *items,
int numitems);
struct slabinfo_stack **procps_slabinfo_sort (
struct slabinfo_info *info,
struct slabinfo_stack *stacks[],
int numstacked,
enum slabinfo_item sortitem,
enum slabinfo_sort_order order);
__END_DECLS
#endif