6b6e1261f1
1999-10-19 Martin Baulig <martin@home-of-linux.org> * uptime.c (glibtop_get_uptime_s): Don't cast uptime and idletime to float as suggested by John Kodis.
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/* $Id$ */
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, 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/uptime.h>
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static unsigned long _glibtop_sysdeps_uptime =
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(1L << GLIBTOP_UPTIME_UPTIME) + (1L << GLIBTOP_UPTIME_IDLETIME);
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/* Init function. */
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void
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glibtop_init_uptime_s (glibtop *server)
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{
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server->sysdeps.uptime = _glibtop_sysdeps_uptime;
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}
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/* Provides uptime and idle time. */
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#define FILENAME "/proc/uptime"
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void
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glibtop_get_uptime_s (glibtop *server, glibtop_uptime *buf)
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{
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char buffer [BUFSIZ], *p;
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int fd, len;
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glibtop_init_s (&server, GLIBTOP_SYSDEPS_UPTIME, 0);
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memset (buf, 0, sizeof (glibtop_uptime));
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fd = open (FILENAME, O_RDONLY);
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if (fd < 0)
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glibtop_error_io_r (server, "open (%s)", FILENAME);
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len = read (fd, buffer, BUFSIZ-1);
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if (len < 0)
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glibtop_error_io_r (server, "read (%s)", FILENAME);
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close (fd);
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buffer [len] = '\0';
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buf->uptime = strtod (buffer, &p);
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buf->idletime = strtod (p, &p);
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buf->flags = _glibtop_sysdeps_uptime;
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}
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