procps/proc/diskstats.h
Jim Warner b2c4fcfddb library: reposition those 'info' structures in headers
For some unknown reason all the 'info' structures were
declared between macros and function prototypes rather
than right after all the other structure declarations.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2021-12-16 20:50:07 +11:00

138 lines
4.5 KiB
C

/*
* diskstat.c - disk I/O related declarations for libprocps
*
* Copyright (c) 2003 Fabian Frederick
* Copyright (C) 2003 Albert Cahalan
* Copyright (C) 2015 Craig Small <csmall@dropbear.xyz>
* Copyright (C) 2016-2021 Jim Warner <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_DISKSTATS_H
#define PROCPS_DISKSTATS_H
#ifdef __cplusplus
extern "C" {
#endif
enum diskstats_item {
DISKSTATS_noop, // ( never altered )
DISKSTATS_extra, // ( reset to zero )
// returns origin, see proc(5)
// ------- -------------------
DISKSTATS_NAME, // str /proc/diskstats
DISKSTATS_TYPE, // s_int "
DISKSTATS_MAJOR, // s_int "
DISKSTATS_MINOR, // s_int "
DISKSTATS_READS, // ul_int "
DISKSTATS_READS_MERGED, // ul_int "
DISKSTATS_READ_SECTORS, // ul_int "
DISKSTATS_READ_TIME, // ul_int "
DISKSTATS_WRITES, // ul_int "
DISKSTATS_WRITES_MERGED, // ul_int "
DISKSTATS_WRITE_SECTORS, // ul_int "
DISKSTATS_WRITE_TIME, // ul_int "
DISKSTATS_IO_TIME, // ul_int "
DISKSTATS_WEIGHTED_TIME, // ul_int "
DISKSTATS_IO_INPROGRESS, // s_int "
DISKSTATS_DELTA_READS, // s_int derived from above
DISKSTATS_DELTA_READS_MERGED, // s_int "
DISKSTATS_DELTA_READ_SECTORS, // s_int "
DISKSTATS_DELTA_READ_TIME, // s_int "
DISKSTATS_DELTA_WRITES, // s_int "
DISKSTATS_DELTA_WRITES_MERGED, // s_int "
DISKSTATS_DELTA_WRITE_SECTORS, // s_int "
DISKSTATS_DELTA_WRITE_TIME, // s_int "
DISKSTATS_DELTA_IO_TIME, // s_int "
DISKSTATS_DELTA_WEIGHTED_TIME // s_int "
};
enum diskstats_sort_order {
DISKSTATS_SORT_ASCEND = +1,
DISKSTATS_SORT_DESCEND = -1
};
struct diskstats_result {
enum diskstats_item item;
union {
signed int s_int;
unsigned long ul_int;
char *str;
} result;
};
struct diskstats_stack {
struct diskstats_result *head;
};
struct diskstats_reaped {
int total;
struct diskstats_stack **stacks;
};
struct diskstats_info;
#define DISKSTATS_TYPE_DISK -11111
#define DISKSTATS_TYPE_PARTITION -22222
#define DISKSTATS_GET( info, name, actual_enum, type ) ( { \
struct diskstats_result *r = procps_diskstats_get( info, name, actual_enum ); \
r ? r->result . type : 0; } )
#define DISKSTATS_VAL( relative_enum, type, stack, info ) \
stack -> head [ relative_enum ] . result . type
int procps_diskstats_new (struct diskstats_info **info);
int procps_diskstats_ref (struct diskstats_info *info);
int procps_diskstats_unref (struct diskstats_info **info);
struct diskstats_result *procps_diskstats_get (
struct diskstats_info *info,
const char *name,
enum diskstats_item item);
struct diskstats_reaped *procps_diskstats_reap (
struct diskstats_info *info,
enum diskstats_item *items,
int numitems);
struct diskstats_stack *procps_diskstats_select (
struct diskstats_info *info,
const char *name,
enum diskstats_item *items,
int numitems);
struct diskstats_stack **procps_diskstats_sort (
struct diskstats_info *info,
struct diskstats_stack *stacks[],
int numstacked,
enum diskstats_item sortitem,
enum diskstats_sort_order order);
#ifdef XTRA_PROCPS_DEBUG
# include "xtra-procps-debug.h"
#endif
#ifdef __cplusplus
}
#endif
#endif