50f086cb68
* glibtop_server.h: * glibtop_server.c: (try_file_to_buffer), (file_to_buffer): Added. These functions are commonly used. Misc cleanups. * cpu.c: (glibtop_get_cpu_s): * loadavg.c: (glibtop_get_loadavg_s): * mem.c: (glibtop_get_mem_s): * open.c: (glibtop_open_s): * swap.c: (glibtop_get_swap_s): * sysinfo.c: (init_sysinfo): * uptime.c: (glibtop_get_uptime_s): Replaced open/read/close by file_to_buffer().
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/* $Id$ */
|
|
|
|
/* Copyright (C) 1998-99 Martin Baulig
|
|
This file is part of LibGTop 1.0.
|
|
|
|
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
|
|
|
|
LibGTop is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
LibGTop 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 General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with LibGTop; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <glibtop/error.h>
|
|
#include <glibtop/swap.h>
|
|
|
|
#include <fcntl.h>
|
|
|
|
static const unsigned long _glibtop_sysdeps_swap =
|
|
(1L << GLIBTOP_SWAP_TOTAL) + (1L << GLIBTOP_SWAP_USED) +
|
|
(1L << GLIBTOP_SWAP_FREE);
|
|
|
|
static const unsigned long _glibtop_sysdeps_swap_paging =
|
|
(1L << GLIBTOP_SWAP_PAGEIN) + (1L << GLIBTOP_SWAP_PAGEOUT);
|
|
|
|
/* Init function. */
|
|
|
|
void
|
|
glibtop_init_swap_s (glibtop *server)
|
|
{
|
|
server->sysdeps.swap = _glibtop_sysdeps_swap |
|
|
_glibtop_sysdeps_swap_paging;
|
|
}
|
|
|
|
/* Provides information about swap usage. */
|
|
|
|
#define MEMINFO "/proc/meminfo"
|
|
#define PROC_STAT "/proc/stat"
|
|
|
|
void
|
|
glibtop_get_swap_s (glibtop *server, glibtop_swap *buf)
|
|
{
|
|
char buffer [BUFSIZ], *p;
|
|
|
|
glibtop_init_s (&server, GLIBTOP_SYSDEPS_SWAP, 0);
|
|
|
|
memset (buf, 0, sizeof (glibtop_swap));
|
|
|
|
file_to_buffer(server, buffer, MEMINFO);
|
|
|
|
/* Kernel 2.6 with multiple lines */
|
|
|
|
buf->total = get_scaled(buffer, "SwapTotal:");
|
|
buf->free = get_scaled(buffer, "SwapFree:");
|
|
buf->used = buf->total - buf->free;
|
|
|
|
buf->flags = _glibtop_sysdeps_swap;
|
|
|
|
file_to_buffer(server, buffer, PROC_STAT);
|
|
|
|
p = strstr (buffer, "\nswap");
|
|
if (p == NULL) return;
|
|
|
|
p = skip_token (p);
|
|
|
|
buf->pagein = strtoull (p, &p, 0);
|
|
buf->pageout = strtoull (p, &p, 0);
|
|
|
|
buf->flags |= _glibtop_sysdeps_swap_paging;
|
|
}
|