97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by James Dominic P. Guana <guana.histark@gmail.com>, May 2020.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <glibtop/error.h>
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#include <glibtop/disk.h>
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#include "glibtop_private.h"
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static const unsigned long _glibtop_sysdeps_disk =
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(1L << GLIBTOP_XDISK_SECTORS_READ) + (1L << GLIBTOP_XDISK_TIME_READ) +
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(1L << GLIBTOP_XDISK_SECTORS_WRITE) + (1L << GLIBTOP_XDISK_TIME_WRITE);
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/* Init function. */
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void
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_glibtop_init_disk_s (glibtop *server)
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{
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server->sysdeps.disk = _glibtop_sysdeps_disk;
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}
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/* Provides information about disk usage. */
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#define FILENAME "/proc/diskstats" //kernel reports sectors by 512 bytes even for AF 4kn
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#define STAT_BUFSIZ 81920
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void
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glibtop_get_disk_s (glibtop *server, glibtop_disk *buf)
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{
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char buffer [STAT_BUFSIZ], *p;
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int i;
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memset (buf, 0, sizeof (glibtop_disk));
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file_to_buffer(server, buffer, sizeof buffer, FILENAME);
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/*
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* GLOBAL
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*/
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p = buffer; /* "disk" */
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/*
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* PER DISK
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*/
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for (i = 0; i <= server->ndisk; i++) {
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p = skip_multiple_token(p,2);
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// skip if disk is the raw device
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if(!check_alphanumeric_word(p)){
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p = skip_line(p); /* move to ^ */
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p = skip_multiple_token(p,2);
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}
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if (!check_disk_line_warn(server, p, i))
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break;
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p = skip_token(p); /* prev xdisk_name */
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p = skip_token(p); /* prev xdisk_reads_completed */
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p = skip_token(p); /* prev xdisk_reads_merged */
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buf->xdisk_sectors_read [i] = strtoull (p, &p, 0);
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buf->xdisk_time_read [i] = strtoull (p, &p, 0);
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p = skip_token(p); /* prev xdisk_writes_completed */
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p = skip_token(p); /* prev xdisk_writes_merged */
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buf->xdisk_sectors_write [i] = strtoull (p, &p, 0);
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buf->xdisk_time_write [i] = strtoull (p, &p, 0);
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p = skip_line(p); /* move to ^ */
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}
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}
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