1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
//
// Copyright (c) 1994, 1995 by Mike Romberg ( romberg@fsl.noaa.gov )
//
// This file may be distributed under terms of the GPL
//
// Most of this code was written by Werner Fink <werner@suse.de>.
// Only small changes were made on my part (M.R.)
//
// $Id: loadmeter.cc,v 1.3 1997/12/02 20:03:42 bgrayson Exp $
//
#include "loadmeter.h"
#include "xosview.h"
#include <fstream.h>
#include <stdlib.h>
static const char LOADFILENAME[] = "/proc/loadavg";
LoadMeter::LoadMeter( XOSView *parent )
: FieldMeterDecay( parent, 2, "LOAD", "PROCS/MIN", 1, 0 ){
}
LoadMeter::~LoadMeter( void ){
}
void LoadMeter::checkResources( void ){
FieldMeterDecay::checkResources();
warnloadcol_ = parent_->allocColor(parent_->getResource( "loadWarnColor" ));
procloadcol_ = parent_->allocColor(parent_->getResource( "loadProcColor" ));
setfieldcolor( 0, procloadcol_ );
setfieldcolor( 1, parent_->getResource( "loadIdleColor" ) );
priority_ = atoi (parent_->getResource( "loadPriority" ) );
dodecay_ = !strcmp (parent_->getResource( "loadDecay" ), "True" );
SetUsedFormat (parent_->getResource("loadUsedFormat"));
alarmThreshold = atoi (parent_->getResource("loadAlarmThreshold"));
if (dodecay_){
// Warning: Since the loadmeter changes scale occasionally, old
// decay values need to be rescaled. However, if they are rescaled,
// they could go off the edge of the screen. Thus, for now, to
// prevent this whole problem, the load meter can not be a decay
// meter. The load is a decaying average kind of thing anyway,
// so having a decaying load average is redundant.
cerr << "Warning: The loadmeter can not be configured as a decay\n"
<< " meter. See the source code (" << __FILE__ << ") for further\n"
<< " details.\n";
dodecay_ = 0;
}
}
void LoadMeter::checkevent( void ){
getloadinfo();
drawfields();
}
void LoadMeter::getloadinfo( void ){
ifstream loadinfo( LOADFILENAME );
if ( !loadinfo ){
cerr <<"Can not open file : " <<LOADFILENAME <<endl;
parent_->done(1);
return;
}
loadinfo >>fields_[0];
if ( fields_[0] > alarmThreshold ) {
if (total_ == alarmThreshold ) {
setfieldcolor( 0, warnloadcol_ );
if (dolegends_) drawlegend();
}
total_ = fields_[1] = 20;
} else {
if (total_ == 20 ) {
setfieldcolor( 0, procloadcol_ );
if (dolegends_) drawlegend();
}
total_ = fields_[1] = alarmThreshold;
}
setUsed(fields_[0], total_);
}
|
