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/* 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/procsegment.h>
#include "glibtop_private.h"
static const unsigned long _glibtop_sysdeps_proc_segment =
(1L << GLIBTOP_PROC_SEGMENT_START_CODE) +
(1L << GLIBTOP_PROC_SEGMENT_END_CODE) +
(1L << GLIBTOP_PROC_SEGMENT_START_STACK);
static const unsigned long _glibtop_sysdeps_proc_segment_statm =
(1L << GLIBTOP_PROC_SEGMENT_TEXT_RSS) +
/* Disabled due to bug in the Linux Kernel. */
/* (1L << GLIBTOP_PROC_SEGMENT_SHLIB_RSS) + */
(1L << GLIBTOP_PROC_SEGMENT_DATA_RSS) +
(1L << GLIBTOP_PROC_SEGMENT_DIRTY_SIZE);
/* Init function. */
void
_glibtop_init_proc_segment_s (glibtop *server)
{
server->sysdeps.proc_segment = _glibtop_sysdeps_proc_segment |
_glibtop_sysdeps_proc_segment_statm;
}
/* Provides detailed information about a process. */
void
glibtop_get_proc_segment_s (glibtop *server, glibtop_proc_segment *buf,
pid_t pid)
{
char buffer [BUFSIZ], *p;
const size_t pagesize = get_page_size();
memset (buf, 0, sizeof (glibtop_proc_segment));
if (proc_stat_to_buffer(buffer, sizeof buffer, pid))
return;
p = proc_stat_after_cmd (buffer);
if (!p) return;
p = skip_multiple_token (p, 23);
buf->start_code = strtoull (p, &p, 0);
buf->end_code = strtoull (p, &p, 0);
buf->start_stack = strtoull (p, &p, 0);
buf->flags = _glibtop_sysdeps_proc_segment;
if (proc_statm_to_buffer(buffer, sizeof buffer, pid))
return;
p = skip_multiple_token (buffer, 3);
/* This doesn't work very well due to a bug in the Linux kernel.
* I'll submit a patch to the kernel mailing list soon. */
buf->text_rss = strtoull (p, &p, 0);
buf->shlib_rss = strtoull (p, &p, 0);
buf->data_rss = strtoull (p, &p, 0);
buf->dirty_size = strtoull (p, &p, 0);
buf->text_rss *= pagesize;
buf->shlib_rss *= pagesize;
buf->data_rss *= pagesize;
buf->dirty_size *= pagesize;
buf->flags |= _glibtop_sysdeps_proc_segment_statm;
}
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