procps/proc/slab.h
Craig Small ccb6ae8de1 library: cleanup of library includes
The includes used to define a lot of things a library include
should not. It was also a bit messy what was exposed in the library
and what was not.

get_pid_digits -> procps_pid_length and exported correctly

MALLOC attribute move into relevant .c files
NORETURN attribute moved to relevant .c, not used in library
PURE attribute removed, it wasn't used
KLONG/KLF/STRTOUKL were fixed for long, so now just use long

HIDDEN attribute removed. It was for 3 functions. The PROCPS_EXPORT
seems to do the same (opposite) thing.

likely/unlikely removed from most places, its highly debateable
this does anything useful as CPUs have gotten smarter about branches.

Re-arranged the includes, ALL external programs should just #include
<proc/procps.h> then proc/procps.h includes headers for files that
have exported functions. procps.h and the headers it includes should
not use items that are not exportable (e.g. hidden functions or
macros) they go in procps-private.h
2016-04-16 17:03:57 +10:00

136 lines
4.0 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
#include <features.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 */