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/**
* This file is a part of the Cairo-Dock project
*
* Copyright : (C) see the 'copyright' file.
* E-mail : see the 'copyright' file.
*
* This program 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 3
* 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.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <fcntl.h>
#include <unistd.h>
#include "applet-struct.h"
#include "applet-cpusage.h"
#define CPUSAGE_DATA_PIPE CD_SYSMONITOR_PROC_FS"/stat"
#define CPUSAGE_UPTIME_PIPE CD_SYSMONITOR_PROC_FS"/uptime"
#define CPUSAGE_LOADAVG_PIPE CD_SYSMONITOR_PROC_FS"/loadavg"
#define CPUSAGE_PROC_INFO_PIPE CD_SYSMONITOR_PROC_FS"/cpuinfo"
void cd_sysmonitor_get_uptime (gchar **cUpTime, gchar **cActivityTime)
{
FILE *fd = fopen (CPUSAGE_UPTIME_PIPE, "r");
if (fd == NULL)
{
cd_warning ("can't open %s", CPUSAGE_UPTIME_PIPE);
return ;
}
double fUpTime = 0, fIdleTime = 0;
int r = fscanf (fd, "%lf %lf\n", &fUpTime, &fIdleTime);
fclose (fd);
const int minute = 60;
const int hour = minute * 60;
const int day = hour * 24;
int iUpTime = (int) fUpTime, iActivityTime = (int) (fUpTime - fIdleTime);
*cUpTime = g_strdup_printf ("%d %s, %d:%02d:%02d",
iUpTime / day, D_("day(s)"),
(iUpTime % day) / hour,
(iUpTime % hour) / minute,
iUpTime % minute);
*cActivityTime = g_strdup_printf ("%d %s, %d:%02d:%02d",
iActivityTime / day, D_("day(s)"),
(iActivityTime % day) / hour,
(iActivityTime % hour) / minute,
iActivityTime % minute);
}
void cd_sysmonitor_get_cpu_info (CairoDockModuleInstance *myApplet)
{
gchar *cContent = NULL;
gsize length=0;
g_file_get_contents (CPUSAGE_PROC_INFO_PIPE, &cContent, &length, NULL);
if (cContent == NULL)
{
cd_warning ("sysmonitor : can't open %s, assuming their is only 1 CPU with 1 core", CPUSAGE_PROC_INFO_PIPE);
myData.iNbCPU = 1;
}
else
{
gchar *line = cContent;
gchar *str;
do
{
str = NULL;
if (myData.cModelName == NULL && strncmp (line, "model name", 10) == 0)
{
str = strchr (line+10, ':');
if (str != NULL)
{
gchar *str2 = strchr (str+2, '\n');
if (str2 != NULL)
{
*str2 = '\0';
myData.cModelName = g_strdup (str + 2); // on saute l'espace apres le ':'.
*str2 = '\n';
}
}
}
else if (myData.iFrequency == 0 && strncmp (line, "cpu MHz", 7) == 0)
{
str = strchr (line+7, ':');
if (str != NULL)
{
myData.iFrequency = atoi (str + 2); // on saute l'espace apres le ':'.
}
}
else if (strncmp (line, "processor", 9) == 0) // processeur virtuel.
{
cd_debug (" found 1 virtual processor");
myData.iNbCPU ++;
}
/*else if (strncmp (line, "physical id", 11) == 0) // processeur physique.
{
}
else if (strncmp (line, "cpu cores", 9) == 0) // nbre de coeurs de ce processeur physique.
{
}*/
if (str != NULL)
line = str; // optimisation : on se place apres ce qu'on a trouve.
str = strchr (line, '\n');
if (str == NULL)
break ; // on cherche tous les processeurs.
line = str + 1;
}
while (TRUE);
}
myData.iNbCPU = MAX (myData.iNbCPU, 1);
cd_debug ("sysmonitor : %d CPU/core(s) found", myData.iNbCPU);
g_free (cContent);
}
#define go_to_next_value(tmp) \
tmp ++; \
while (g_ascii_isdigit (*tmp)) \
tmp ++; \
while (*tmp == ' ') \
tmp ++; \
if (*tmp == '\0') { \
cd_warning ("sysmonitor : problem when reading pipe"); \
myData.bAcquisitionOK = FALSE; \
return ; }
void cd_sysmonitor_get_cpu_data (CairoDockModuleInstance *myApplet)
{
static char cContent[512+1];
FILE *fd = fopen (CPUSAGE_DATA_PIPE, "r");
if (fd == NULL)
{
cd_warning ("sysmonitor : can't open %s", CPUSAGE_DATA_PIPE);
myData.bAcquisitionOK = FALSE;
return ;
}
gchar *tmp = fgets (cContent, 512, fd); // on ne prend que la 1ere ligne, somme de tous les processeurs.
fclose (fd);
if (tmp == NULL)
{
cd_warning ("sysmonitor : can't read %s", CPUSAGE_DATA_PIPE);
myData.bAcquisitionOK = FALSE;
return ;
}
double fTimeElapsed = g_timer_elapsed (myData.pClock, NULL);
g_timer_start (myData.pClock);
g_return_if_fail (fTimeElapsed > 0.1 || !myData.bInitialized); // en conf, c'est 1s minimum.
long long int new_cpu_user = 0, new_cpu_user_nice = 0, new_cpu_system = 0, new_cpu_idle = 0;
tmp += 3; // on saute 'cpu'.
while (*tmp == ' ') // on saute les espaces.
tmp ++;
new_cpu_user = atoll (tmp);
go_to_next_value(tmp)
new_cpu_user_nice = atoll (tmp);
//g_print ("%lld --> %lld\n", myData.cpu_user, new_cpu_user);
go_to_next_value(tmp)
new_cpu_system = atoll (tmp);
go_to_next_value(tmp)
new_cpu_idle = atoll (tmp);
if (myData.bInitialized) // la 1ere iteration on ne peut pas calculer la frequence.
{
myData.fCpuPercent = 100. * (1. - (new_cpu_idle - myData.cpu_idle) / myConfig.fUserHZ / myData.iNbCPU / fTimeElapsed);
if (myData.fCpuPercent < 0) // peut arriver car le fichier pipe est pas mis a jour tous les dt, donc il y'a potentiellement un ecart de dt avec la vraie valeur. Ca plus le temps d'execution.
myData.fCpuPercent = 0;
if (fabs (myData.fCpuPercent - myData.fPrevCpuPercent) > 1)
{
myData.fPrevCpuPercent = myData.fCpuPercent;
myData.bNeedsUpdate = TRUE;
}
/*cd_debug ("CPU(%d) user : %d -> %d / nice : %d -> %d / sys : %d -> %d / idle : %d -> %d",
myData.iNbCPU,
myData.cpu_user, new_cpu_user,
myData.cpu_user_nice, new_cpu_user_nice,
myData.cpu_system, new_cpu_system,
myData.cpu_idle, new_cpu_idle);
cd_debug ("=> CPU user : %.3f / nice : %.3f / sys : %.3f / idle : %.3f",
(new_cpu_user - myData.cpu_user) / myConfig.fUserHZ / myData.iNbCPU / fTimeElapsed,
(new_cpu_user_nice - myData.cpu_user_nice) / myConfig.fUserHZ / myData.iNbCPU / fTimeElapsed,
(new_cpu_system - myData.cpu_system) / myConfig.fUserHZ / myData.iNbCPU / fTimeElapsed,
(new_cpu_idle - myData.cpu_idle) / myConfig.fUserHZ / myData.iNbCPU / fTimeElapsed);*/
}
myData.cpu_user = new_cpu_user;
myData.cpu_user_nice = new_cpu_user_nice;
myData.cpu_system = new_cpu_system;
myData.cpu_idle = new_cpu_idle;
}
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