aa5ac8fc10
2005-12-12 James Henstridge <james@jamesh.id.au> * doc/auto-macros.texi.in: remove unused file. * doc/libgtop2.texi: don't include auto-macros.texi. * doc/Makefile.am: don't build auto-macros.texi, since none of its macros are used in the documentation any more. * include/glibtop/global.h: don't include <config.h> from headers. * .../*.c: make sure <config.h> is the first thing included. * acinclude.m4: m4_include() libgtop-sysdeps.m4 rather than inlining it. * acinclude.m4, libgtop-sysdeps.m4: use third argument to AC_DEFINE() to set the comment. * configure.in: modernise a bit. * acconfig.h: remove file, since it is deprecated * autogen.sh: require automake 1.9 instead of 1.4.
112 lines
2.6 KiB
C
112 lines
2.6 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.h>
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#include <glibtop/error.h>
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#include <glibtop/swap.h>
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#include <unistd.h>
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#include <sys/swap.h>
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#include <glibtop_private.h>
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static const unsigned long _glibtop_sysdeps_swap =
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(1L << GLIBTOP_SWAP_TOTAL) + (1L << GLIBTOP_SWAP_USED) +
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(1L << GLIBTOP_SWAP_FREE);
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/* Init function. */
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void
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glibtop_init_swap_s (glibtop *server)
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{
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server->sysdeps.swap = _glibtop_sysdeps_swap;
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}
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/* Provides information about swap usage. */
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void
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glibtop_get_swap_s (glibtop *server, glibtop_swap *buf)
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{
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swaptbl_t *s = NULL;
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int i, n1, n2;
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/* we don't care about ste_path, and we're lazy */
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char shared_path[BUFSIZ]; /* hope this is large enough */
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const int pagesize = getpagesize();
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memset(buf, 0, sizeof *buf);
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switch( (n1 = swapctl(SC_GETNSWP, NULL)) )
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{
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case -1:
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glibtop_warn_r(server, "swapctl: GETNSWP");
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return;
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case 0:
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/* no swapfile */
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goto out_no_swap;
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default:
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break;
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}
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/* RTFM */
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s = g_malloc(sizeof(swaptbl_t)
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+ n1 * sizeof(swapent_t));
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s->swt_n = n1;
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/* initialize string pointers */
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for (i = 0; i < n1; i++)
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{
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s->swt_ent[i].ste_path = shared_path;
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}
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if ((n2 = swapctl(SC_LIST, s)) < 0)
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{
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glibtop_warn_r(server, "swapctl: SC_LIST");
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goto out_free;
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}
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/* #swapfile may have changed between the 2 swapctl() calls
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* we don't care, we just use the smallest #swapfile */
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for (i = 0; i < MIN(n1, n2); i++)
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{
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buf->total += s->swt_ent[i].ste_pages;
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buf->free += s->swt_ent[i].ste_free;
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}
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buf->total *= pagesize;
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buf->free *= pagesize;
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buf->used = buf->total - buf->free;
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out_no_swap:
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buf->flags = _glibtop_sysdeps_swap;
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out_free:
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g_free(s);
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}
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