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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.h>
#include <glibtop/cpu.h>
#include <glibtop/open.h>
#include <glibtop/error.h>
#include "glibtop_private.h"
/* ======================================================= */
/* Opens pipe to gtop server. Returns 0 on success and -1 on error. */
#define FILENAME "/proc/stat"
void
glibtop_open_s (glibtop *server, const char *program_name,
const unsigned long features,
const unsigned flags)
{
char buffer [BUFSIZ], *p = buffer;
server->name = program_name;
file_to_buffer(server, buffer, sizeof buffer, FILENAME);
p = skip_line(p); /* cpu */
for (server->real_ncpu = 0; /* nop */; server->real_ncpu++) {
if (!check_cpu_line(server, p, server->real_ncpu)) {
server->real_ncpu--;
break;
}
p = skip_line(p);
}
server->ncpu = MIN(GLIBTOP_NCPU - 1, server->real_ncpu);
if (server->real_ncpu != server->ncpu) {
glibtop_warn_r(server,
"This machine has %d CPUs, "
"%d are being monitored.",
server->real_ncpu + 1,
server->ncpu + 1);
}
}
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