mirror of
https://github.com/netfun2000/lcd4linux.git
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a9d650fb4d
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@727 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
133 lines
2.7 KiB
C
133 lines
2.7 KiB
C
/* $Id$
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* $URL$
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*
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* plugin for /proc/cpuinfo parsing
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*
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* Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at>
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* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
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*
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* This file is part of LCD4Linux.
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*
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* LCD4Linux is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* LCD4Linux is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/*
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* exported functions:
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*
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* int plugin_init_cpuinfo (void)
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* adds functions to access /proc/cpuinfo
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*
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include "debug.h"
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#include "plugin.h"
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#include "hash.h"
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static HASH CPUinfo;
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static FILE *stream = NULL;
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static int parse_cpuinfo(void)
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{
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int age;
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/* reread every second only */
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age = hash_age(&CPUinfo, NULL);
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if (age > 0 && age <= 1000)
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return 0;
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if (stream == NULL)
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stream = fopen("/proc/cpuinfo", "r");
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if (stream == NULL) {
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error("fopen(/proc/cpuinfo) failed: %s", strerror(errno));
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return -1;
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}
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rewind(stream);
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while (!feof(stream)) {
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char buffer[256];
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char *c, *key, *val;
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fgets(buffer, sizeof(buffer), stream);
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c = strchr(buffer, ':');
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if (c == NULL)
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continue;
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key = buffer;
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val = c + 1;
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/* strip leading blanks from key */
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while (isspace(*key))
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*key++ = '\0';
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/* strip trailing blanks from key */
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do
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*c = '\0';
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while (isspace(*--c));
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/* strip leading blanks from value */
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while (isspace(*val))
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*val++ = '\0';
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/* strip trailing blanks from value */
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for (c = val; *c != '\0'; c++);
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while (isspace(*--c))
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*c = '\0';
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/* add entry to hash table */
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hash_put(&CPUinfo, key, val);
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}
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return 0;
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}
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static void my_cpuinfo(RESULT * result, RESULT * arg1)
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{
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char *key, *val;
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if (parse_cpuinfo() < 0) {
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SetResult(&result, R_STRING, "");
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return;
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}
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key = R2S(arg1);
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val = hash_get(&CPUinfo, key, NULL);
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if (val == NULL)
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val = "";
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SetResult(&result, R_STRING, val);
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}
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int plugin_init_cpuinfo(void)
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{
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hash_create(&CPUinfo);
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AddFunction("cpuinfo", 1, my_cpuinfo);
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return 0;
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}
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void plugin_exit_cpuinfo(void)
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{
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if (stream != NULL) {
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fclose(stream);
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stream = NULL;
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}
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hash_destroy(&CPUinfo);
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}
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