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lmstemp.cc
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lmstemp.cc
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//
// Copyright (c) 2000, 2006 by Leopold Toetsch <lt@toetsch.at>
//
// Read temperature entries from /proc/sys/dev/sensors/*/*
// and display actual and high temperature
// if actual >= high, actual temp changes color to indicate alarm
//
// File based on btrymeter.* by
// Copyright (c) 1997 by Mike Romberg ( mike.romberg@noaa.gov )
//
// This file may be distributed under terms of the GPL
//
//
//
#include "lmstemp.h"
#include "xosview.h"
#include <fstream>
#include <math.h>
#include <stdlib.h>
#include <dirent.h>
#include <sys/stat.h>
static const char PROC_SENSORS_24[] = "/proc/sys/dev/sensors";
static const char PROC_SENSORS_26[] = "/sys/class/hwmon";
LmsTemp::LmsTemp( XOSView *parent, const char *tempfile, const char *highfile, const char *label, const char *caption)
: FieldMeter( parent, 3, label, caption, 1, 1, 0 ){
_highfile = new char[PATH_MAX];
_tempfile = new char[PATH_MAX];
if (!checksensors(1, PROC_SENSORS_24, tempfile, highfile)) {
if (!checksensors(0, PROC_SENSORS_26, tempfile, highfile)) {
std::cerr << label << " Can not find file : ";
if (tempfile[0] == '/') {
std::cerr << tempfile << " or " << highfile;
if (highfile[0] != '/')
std::cerr << " under " << PROC_SENSORS_24 << " or " << PROC_SENSORS_26;
}
else {
if (highfile[0] == '/')
std::cerr << tempfile << " under " << PROC_SENSORS_24 << " or " << PROC_SENSORS_26 << " or " << highfile;
else
std::cerr << tempfile << " or " << highfile << " under " << PROC_SENSORS_24 << " or " << PROC_SENSORS_26;
}
std::cerr << std::endl;
parent_->done(1);
}
}
_high = 0;
const char *p;
if ((p = strrchr(caption,'/')) != 0)
total_ = atoi(p+1);
else
total_ = 100;
}
LmsTemp::~LmsTemp( void ){
delete[] _tempfile;
if (_highfile)
delete[] _highfile;
}
/* this part is adapted from ProcMeter3.2 */
bool LmsTemp::checksensors(int isproc, const char *dir, const char* tempfile, const char *highfile) {
bool temp_found = false, high_found = false;
DIR *d1, *d2;
struct dirent *ent1, *ent2;
struct stat buf;
int j = (isproc ? 1 : 2);
if (tempfile[0] == '/') {
if (stat(tempfile, &buf) == 0)
temp_found = true;
else
return false;
}
if (!highfile)
high_found = true;
else {
if (highfile[0] == '/') {
if (stat(highfile, &buf) == 0)
high_found = true;
else
return false;
}
}
if (temp_found && high_found) {
strcpy(_tempfile, tempfile);
if (highfile)
strcpy(_highfile, highfile);
else {
delete[] _highfile;
_highfile = NULL;
}
_isproc = strncmp(_tempfile, "/proc", 5) == 0 ? 1 : 0;
return true;
}
d1=opendir(dir);
if(!d1)
return false;
else
{
char dirname[64];
while (!temp_found && !high_found && (ent1 = readdir(d1))) {
if(!strncmp(ent1->d_name,".", 1))
continue;
if(!strncmp(ent1->d_name,"..", 2))
continue;
snprintf(dirname, 64, "%s/%s",dir ,ent1->d_name);
for (int i = 0; i < j; i++) {
if (stat(dirname, &buf) == 0 && S_ISDIR(buf.st_mode)) {
d2=opendir(dirname);
if(!d2)
std::cerr << "The directory " <<dirname
<<"exists but cannot be read.\n";
else
{
while((ent2=readdir(d2)))
{
char f[80];
snprintf(f, 80, "%s/%s",dirname,ent2->d_name);
if(stat(f,&buf)!=0 || !S_ISREG(buf.st_mode))
continue;
if (isproc) {
if (!strncmp(ent2->d_name, tempfile, strlen(tempfile))) {
temp_found = true;
high_found = true;
strcpy(_tempfile, f);
}
}
else {
if (!strncmp(ent2->d_name, tempfile, strlen(tempfile)) &&
!strncmp(ent2->d_name + strlen(tempfile), "_input", 6)) {
strcpy(_tempfile, f);
temp_found = true;
}
if (!high_found && (!strncmp(ent2->d_name, highfile, strlen(highfile)) &&
!strncmp(ent2->d_name + strlen(highfile), "_max", 4))) {
strcpy(_highfile, f);
high_found = true;
}
}
if (temp_found && high_found) {
_isproc = isproc;
closedir(d2);
closedir(d1);
return true;
}
}
closedir(d2);
}
}
// Some /sys sensors have the readings in subdirectory /device
if (!isproc)
strncat(dirname, "/device", sizeof(dirname) - strlen(dirname) - 1);
}
}
}
closedir(d1);
return (temp_found && high_found);
}
void LmsTemp::checkResources( void ){
FieldMeter::checkResources();
setfieldcolor( 0, parent_->getResource( "lmstempActColor" ) );
setfieldcolor( 1, parent_->getResource( "lmstempIdleColor") );
setfieldcolor( 2, parent_->getResource( "lmstempHighColor" ) );
priority_ = atoi (parent_->getResource( "lmstempPriority" ) );
SetUsedFormat(parent_->getResource( "lmstempUsedFormat" ) );
}
void LmsTemp::checkevent( void ){
getlmstemp();
drawfields();
}
// Note:
// procentry looks like
// high low actual
//
// if actual >= high alarm is triggered, fan starts and high is set to
// a higher value by BIOS
// after fan cooled down the chips, high get's reset
// if this happens display color of actual is set to HighColor
// this could be very machine depended
//
// a typical entry on my machine (Gericom Overdose 2 XXL, PIII 600) looks like:
//
// $ sensors
// max1617-i2c-0-4e
// Adapter: SMBus PIIX4 adapter at 1400
// Algorithm: Non-I2C SMBus adapter
// temp: 52 C (limit: 55 C, hysteresis: -55 C)
// remote_temp:
// 56 C (limit: 90 C, hysteresis: -55 C)
//
// after alarm limits are set to 60 / 127 respectively
// low/hysteresis looks broken ;-)
//
void LmsTemp::getlmstemp( void ){
// dummy, high changed from integer to double to allow it to display
// the full value, unfit for an int. (See Debian bug #183695)
double dummy, high;
char l[20];
std::ifstream tempfile( _tempfile );
if (!tempfile) {
std::cerr << "Can not open file : " << _tempfile << std::endl;
parent_->done(1);
return;
}
if (_isproc) {
tempfile >> high >> dummy >> fields_[0];
}
else {
tempfile >> fields_[0];
fields_[0] /= 1000;
if (_highfile) {
std::ifstream highfile( _highfile );
if (!highfile) {
std::cerr << "Can not open file : " << _highfile << std::endl;
parent_->done(1);
return;
}
highfile >> high;
high /= 1000;
}
else
high = total_;
}
if ( high > total_ ) {
total_ = 10 * ceil((high * 1.25) / 10);
snprintf(l, 20, "ACT/%d/%d", (int)high, (int)total_);
legend(l);
drawlegend();
}
fields_[1] = high - fields_[0];
if(fields_[1] < 0) { // alarm: T > max
fields_[1] = 0;
setfieldcolor( 0, parent_->getResource( "lmstempHighColor" ) );
}
else
setfieldcolor( 0, parent_->getResource( "lmstempActColor" ) );
fields_[2] = total_ - fields_[1] - fields_[0];
setUsed (fields_[0], total_);
if (high != _high) {
_high = high;
if (_highfile)
snprintf(l, 20, "ACT/%d/%d", (int)high, (int)total_);
else
snprintf(l, 20, "ACT/HIGH/%d", (int)total_);
legend(l);
drawlegend();
}
}