uptime.cpp

来自「multiplataform real time Linux monitor」· C++ 代码 · 共 63 行

/* LiMon-Server
|  Copyright (C) 2006 Marcelo Busico
|
|  Author:  Marcelo Busico    [e-mail]
|
|  This program is free software which I release under the GNU General Public
|  License. You may redistribute and/or modify this program under the terms
|  of that license as published by the Free Software Foundation; either
|  version 2 of the License, or (at your option) any later version.
|
|  This program 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.  Version 2 is in the
|  LICENSE.txt file in the top level directory of this distribution.
| 
|  To get a copy of the GNU General Puplic License, write to the Free Software
|  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/* Implementacion de la libreria que lee el Tiempo en Servicio */
#include "uptime.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>


//Constructor
UpTime::UpTime()
{ 
    FILE *f; //Puntero a archivo
    char buf[1024]; //Contenido del archivo

    // UpTime
    //Sale si no puede abrir el archivo
    if ((f = fopen("/proc/uptime", "r")) == NULL)
    {	
	strcpy(cadenaUpTime,"");
	return;
    }
    if(fgets(buf, sizeof(buf), f)!=NULL)
	strcpy(cadenaUpTime,buf);	
    else
	strcpy(cadenaUpTime,"");
    //Cierra el archivo
    fclose(f);
}


//Devuelve UpTime
long UpTime::getTiempo()
{
    long aux=-1; //Almacena el retorno de la funcion
    if(strlen(cadenaUpTime)>0)
    {
	//Encuentra en la cadena del archivo el valor buscado a devolver
	sscanf(cadenaUpTime,"%ld",&aux);
    }
    //Retorna valor en segundos
    return aux ;
}