procps/proc/slab.h
Jim Warner ae4b686745 library: eliminate extra stack header space provisions
With the new perspective on potential uses of a 'noop'
enumerator (or whatever we decide to call it) there is
no longer a need to provide for any extra 'user' space
in the stack header structures used by slab & meminfo.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2015-07-23 22:31:50 +10:00

134 lines
3.9 KiB
C

/*
* slab.h - slab related functions for libproc
*
* Copyright (C) 1998-2005 Albert Cahalan
* Copyright (C) 2015 Craig Small <csmall@enc.com.au>
*
* 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 _PROC_SLAB_H
#define _PROC_SLAB_H
__BEGIN_DECLS
enum slabs_item {
PROCPS_SLABS_OBJS, // u_int
PROCPS_SLABS_AOBJS, // u_int
PROCPS_SLABS_PAGES, // u_int
PROCPS_SLABS_SLABS, // u_int
PROCPS_SLABS_ASLABS, // u_int
PROCPS_SLABS_CACHES, // u_int
PROCPS_SLABS_ACACHES, // u_int
PROCPS_SLABS_SIZE_AVG, // u_int
PROCPS_SLABS_SIZE_MIN, // u_int
PROCPS_SLABS_SIZE_MAX, // u_int
PROCPS_SLABS_SIZE_TOTAL, // ul_int
PROCPS_SLABS_SIZE_ACTIVE, // ul_int
PROCPS_SLABS_noop, // n/a
PROCPS_SLABS_stack_end // n/a
};
enum slabnode_item {
PROCPS_SLABNODE_SIZE, // ul_int
PROCPS_SLABNODE_OBJS, // u_int
PROCPS_SLABNODE_AOBJS, // u_int
PROCPS_SLABNODE_OBJ_SIZE, // u_int
PROCPS_SLABNODE_OBJS_PER_SLAB, // u_int
PROCPS_SLABNODE_PAGES_PER_SLAB, // u_int
PROCPS_SLABNODE_SLABS, // u_int
PROCPS_SLABNODE_ASLABS, // u_int
PROCPS_SLABNODE_USE, // u_int
PROCPS_SLABNODE_NAME, // str
PROCPS_SLABNODE_noop, // n/a
PROCPS_SLABNODE_stack_end // n/a
};
struct procps_slabinfo;
struct slabnode_stack {
struct slab_result *head;
};
struct slab_result {
int item;
union {
unsigned int u_int;
unsigned long ul_int;
char *str;
} result;
};
int procps_slabinfo_new (struct procps_slabinfo **info);
int procps_slabinfo_read (struct procps_slabinfo *info);
int procps_slabinfo_ref (struct procps_slabinfo *info);
int procps_slabinfo_unref (struct procps_slabinfo **info);
unsigned long procps_slabs_get (
struct procps_slabinfo *info,
enum slabs_item item);
int procps_slabs_getstack (
struct procps_slabinfo *info,
struct slab_result *these);
int procps_slabnode_count (struct procps_slabinfo *info);
const char *procps_slabnode_getname (
struct procps_slabinfo *info,
int nodeid);
unsigned long procps_slabnode_get (
struct procps_slabinfo *info,
enum slabnode_item item,
int nodeid);
int procps_slabnode_getstack (
struct procps_slabinfo *info,
struct slab_result *these,
int nodeid);
int procps_slabnode_stack_fill (
struct procps_slabinfo *info,
struct slabnode_stack *stack,
int nodeid);
int procps_slabnode_stacks_fill (
struct procps_slabinfo *info,
struct slabnode_stack **stacks,
int maxstacks);
struct slabnode_stack *procps_slabnode_stack_alloc (
struct procps_slabinfo *info,
int maxitems,
enum slabnode_item *items);
struct slabnode_stack **procps_slabnode_stacks_alloc (
struct procps_slabinfo *info,
int maxstacks,
int maxitems,
enum slabnode_item *items);
struct slabnode_stack **procps_slabnode_stacks_sort (
struct procps_slabinfo *info,
struct slabnode_stack **stacks,
int numstacked,
enum slabnode_item sort);
__END_DECLS
#endif /* _PROC_SLAB_H */