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/***************************************************************************
procinfo.c - description
-------------------
begin : Wed Jan 9 2002
copyright : (C) 2002 by Miguel Novas
email : michaell@teleline.es
***************************************************************************/
/***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "procinfo.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
bool existsFile(const char *file)
{
struct stat buf;
return (stat((const char *)file,&buf)==0);
}
int read_file(const char *name, char *buf, int max)
{
int fd = open(name, O_RDONLY);
if(fd >= 0) {
int r = read(fd, buf, max);
close(fd);
return r;
}
return -1;
}
// ***** Dell i8k sensors info *****
//
// $ cat /proc/i8k
// 1.0 A17 2J59L02 52 2 1 8040 6420 1 2
//
//The fields read from /proc/18k are:
//
// 1.0 A17 2J59L02 52 2 1 8040 6420 1 2
// | | | | | | | | | |
// | | | | | | | | | +------- 10. buttons status
// | | | | | | | | +--------- 9. ac status
// | | | | | | | +-------------- 8. right fan rpm
// | | | | | | +------------------- 7. left fan rpm
// | | | | | +--------------------- 6. right fan status
// | | | | +----------------------- 5. left fan status
// | | | +-------------------------- 4. CPU temperature (Celsius)
// | | +---------------------------------- 3. serial number
// | +-------------------------------------- 2. BIOS version
// +------------------------------------------ 1. /proc/i8k format version
int getI8KInfo(double *cpuTemp, double *leftFan, double *rightFan)
{
double version;
char buf[256];
if(read_file("/proc/i8k", buf, sizeof(buf)) <= 0) return -1;
if(sscanf(buf, "%lf %*s %*s %lf %*d %*d %lf %lf", &version, cpuTemp,leftFan,rightFan)!=4) return -2;
if(version!=1.0) return -3;
return 0;
}
// ************* Acpi temperature ************
// cat /proc/acpi/thermal_zone/THRM/temperature
// temperature: 61 C
int getAcpiTemperature(double *cpuTemp)
{
char buf[128];
if(read_file("/proc/acpi/thermal_zone/THRM/temperature", buf, sizeof(buf))<= 0) return -1;
sscanf(buf, "temperature: %lf C", cpuTemp);
return 0;
}
int getMemInfo(int *RamTotal,int *RamUsed,int *SwapTotal, int *SwapUsed)
{
char buf[4096];
int mem_free,mem_buffers,mem_cached;
char *p;
// read memory info
if(read_file("/proc/meminfo", buf, sizeof(buf)) <= 0) return -1;
p = strstr(buf, "MemTotal:");
if(p) sscanf(p, "MemTotal: %d kB", RamTotal);
else *RamTotal= 0;
p = strstr(buf, "MemFree:");
if(p) sscanf(p, "MemFree: %d kB", &mem_free);
else mem_free= 0;
p = strstr(buf, "Buffers:");
if(p) sscanf(p, "Buffers: %d kB", &mem_buffers);
else mem_buffers= 0;
p = strstr(buf, "Cached:");
if(p) sscanf(p, "Cached: %d kB", &mem_cached);
else mem_cached= 0;
p = strstr(buf, "SwapTotal:");
if(p) sscanf(p, "SwapTotal: %d kB", SwapTotal);
else *SwapTotal= 0;
p = strstr(buf, "SwapFree:");
if(p) sscanf(p, "SwapFree: %d kB", SwapUsed);
else *SwapUsed= 0;
*SwapUsed= *SwapTotal - *SwapUsed;
*RamUsed = *RamTotal - mem_free - mem_buffers - mem_cached;
return 0;
}
bool getCpuTime(int *user,int *nice,int *system,int *idle)
{
char buf[512];
if(read_file("/proc/stat", buf, sizeof(buf)) <= 0) return false;
sscanf(buf, "cpu %u %u %u %u",user,nice,system,idle);
return true;
}
int getUpTime()
{
char buf[256];
if(read_file("/proc/uptime", buf, sizeof(buf)) < 0) return 0;
float uptime;
sscanf(buf, "%f", &uptime);
return (int)uptime;
}
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