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/* $Id$ */
/* 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/cpu.h>
#include <glibtop/sysinfo.h>
#define FILENAME "/proc/cpuinfo"
static const unsigned long _glibtop_sysdeps_sysinfo =
(1L << GLIBTOP_SYSINFO_CPUINFO);
static glibtop_sysinfo sysinfo = { .flags = 0 };
static void
init_sysinfo (glibtop *server)
{
int fd;
ssize_t len;
char buffer [BUFSIZ];
if(G_LIKELY(sysinfo.flags)) return;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_CPU, 0);
memset (&sysinfo, 0, sizeof (glibtop_sysinfo));
/* load the file */
fd = open (FILENAME, O_RDONLY);
if (fd < 0)
glibtop_error_io_r (server, "open (%s)", FILENAME);
len = read (fd, buffer, BUFSIZ-1);
if (len < 0)
glibtop_error_io_r (server, "read (%s)", FILENAME);
close (fd);
buffer [len] = '\0';
/* cpuinfo records are seperated by a blank line */
gchar ** const processors = g_strsplit(buffer, "\n\n", 0);
for(sysinfo.ncpu = 0;
sysinfo.ncpu < GLIBTOP_NCPU && processors[sysinfo.ncpu] && *processors[sysinfo.ncpu];
sysinfo.ncpu++) {
gchar **parts, **p;
glibtop_entry * const cpuinfo = &sysinfo.cpuinfo[sysinfo.ncpu];
cpuinfo->labels = g_ptr_array_new ();
cpuinfo->values = g_hash_table_new_full(g_str_hash, g_str_equal,
g_free, g_free);
cpuinfo->descriptions = g_hash_table_new_full(g_str_hash, g_str_equal,
g_free, g_free);
/* "<key> : <value>" */
parts = g_strsplit_set(processors[sysinfo.ncpu], ":\n", 0);
for(p = parts; *p && *(p+1); p += 2) {
/* stole the allocated memory */
gchar * const key = g_strstrip( *p );
gchar * const value = g_strstrip( *(p+1) );
g_ptr_array_add(cpuinfo->labels, key);
g_hash_table_insert(cpuinfo->values, key, value);
}
/* the last key has no value and has not been added */
if(*p)
g_free(*p);
/* just g_free instead of g_strvfree because we stole
the memory*/
g_free(parts);
}
g_strfreev(processors);
sysinfo.flags = _glibtop_sysdeps_sysinfo;
}
const glibtop_sysinfo *
glibtop_get_sysinfo_s (glibtop *server)
{
init_sysinfo (server);
return &sysinfo;
}
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