876ec555c3
With the dust now settling on all those 3rd generation upgrades, this patch tries to provide some consistency among the separate modules involved. Someday we should consider a 4th generation where all redundant code has been removed and isolated in a new shared source file. Following is a summary of significant changes (if any) to each of these now upgraded 3rd gen library modules. <meminfo> ............................................ . strictly formatting/comment changes, code unaffected <pids> ............................................... . replaced a local mkSTR macro with existing STRINGIFY . added fetch narrative explaining duplicate addresses <slabinfo> ........................................... . rearranged some free logic for procps_slabinfo_unref . added fetch narrative explaining duplicate addresses <stat> ............................................... . added #define ENFORCE_LOGICAL, just as in <slabinfo> . replaced a local mkSTR macro with existing STRINGIFY . alphabetized the function declarations in the header <vmstat> ............................................. . made one coverity concession with read_vmstat_failed [ several of these changes may reflect this author's ] [ continuing pursuit of an unreasonable goal -- that ] [ of a 'perfect' (plus 'pretty') C language program! ] Signed-off-by: Jim Warner <james.warner@comcast.net>
131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/*
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* slabinfo.h - slab related functions for libproc
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*
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* Copyright (C) 1998-2005 Albert Cahalan
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* Copyright (C) 2015 Craig Small <csmall@enc.com.au>
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* Copyright (C) 2016 Jim Warnerl <james.warner@comcast.net>
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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 _PROC_SLAB_H
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#define _PROC_SLAB_H
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#include <features.h>
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__BEGIN_DECLS
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enum slabinfo_item {
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PROCPS_SLABINFO_noop, // ( never altered )
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PROCPS_SLABINFO_extra, // ( reset to zero )
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PROCPS_SLABS_OBJS, // u_int
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PROCPS_SLABS_AOBJS, // u_int
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PROCPS_SLABS_PAGES, // u_int
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PROCPS_SLABS_SLABS, // u_int
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PROCPS_SLABS_ASLABS, // u_int
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PROCPS_SLABS_CACHES, // u_int
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PROCPS_SLABS_ACACHES, // u_int
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PROCPS_SLABS_SIZE_AVG, // u_int
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PROCPS_SLABS_SIZE_MIN, // u_int
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PROCPS_SLABS_SIZE_MAX, // u_int
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PROCPS_SLABS_SIZE_ACTIVE, // ul_int
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PROCPS_SLABS_SIZE_TOTAL, // ul_int
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PROCPS_SLABS_DELTA_OBJS, // s_int
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PROCPS_SLABS_DELTA_AOBJS, // s_int
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PROCPS_SLABS_DELTA_PAGES, // s_int
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PROCPS_SLABS_DELTA_SLABS, // s_int
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PROCPS_SLABS_DELTA_ASLABS, // s_int
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PROCPS_SLABS_DELTA_CACHES, // s_int
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PROCPS_SLABS_DELTA_ACACHES, // s_int
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PROCPS_SLABS_DELTA_SIZE_AVG, // s_int
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PROCPS_SLABS_DELTA_SIZE_MIN, // s_int
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PROCPS_SLABS_DELTA_SIZE_MAX, // s_int
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PROCPS_SLABS_DELTA_SIZE_ACTIVE, // s_int
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PROCPS_SLABS_DELTA_SIZE_TOTAL, // s_int
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PROCPS_SLABNODE_NAME, // str
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PROCPS_SLABNODE_OBJS, // u_int
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PROCPS_SLABNODE_AOBJS, // u_int
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PROCPS_SLABNODE_OBJ_SIZE, // u_int
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PROCPS_SLABNODE_OBJS_PER_SLAB, // u_int
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PROCPS_SLABNODE_PAGES_PER_SLAB, // u_int
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PROCPS_SLABNODE_SLABS, // u_int
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PROCPS_SLABNODE_ASLABS, // u_int
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PROCPS_SLABNODE_USE, // u_int
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PROCPS_SLABNODE_SIZE // ul_int
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};
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enum slabinfo_sort_order {
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PROCPS_SLABINFO_ASCEND = +1,
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PROCPS_SLABINFO_DESCEND = -1
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};
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struct slabinfo_result {
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enum slabinfo_item item;
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union {
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signed int s_int;
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unsigned int u_int;
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unsigned long ul_int;
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char * str;
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} result;
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};
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struct slabinfo_stack {
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struct slabinfo_result *head;
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};
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struct slabinfo_reap {
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int total;
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struct slabinfo_stack **stacks;
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};
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#define PROCPS_SLABINFO_VAL(rel_enum,type,stack) \
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stack -> head [ rel_enum ] . result . type
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struct procps_slabinfo;
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int procps_slabinfo_new (struct procps_slabinfo **info);
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int procps_slabinfo_ref (struct procps_slabinfo *info);
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int procps_slabinfo_unref (struct procps_slabinfo **info);
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signed long procps_slabinfo_get (
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struct procps_slabinfo *info,
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enum slabinfo_item item);
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struct slabinfo_reap *procps_slabinfo_reap (
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struct procps_slabinfo *info,
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enum slabinfo_item *items,
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int numitems);
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struct slabinfo_stack *procps_slabinfo_select (
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struct procps_slabinfo *info,
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enum slabinfo_item *items,
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int numitems);
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struct slabinfo_stack **procps_slabinfo_sort (
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struct procps_slabinfo *info,
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struct slabinfo_stack *stacks[],
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int numstacked,
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enum slabinfo_item sortitem,
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enum slabinfo_sort_order order);
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__END_DECLS
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#endif /* _PROC_SLAB_H */
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