/[scripts]/trunk/dwm-status.pl
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Annotation of /trunk/dwm-status.pl

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Revision 55 - (hide annotations)
Tue Oct 2 16:10:08 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 4153 byte(s)
use Data::Dump dependency optional if running without debug

1 dpavlin 30 #!/usr/bin/perl -w
2    
3     # dwm-status.pl
4     #
5     # 05/26/07 23:08:31 CEST Dobrica Pavlinusic <dpavlin@rot13.org>
6    
7     use strict;
8     use POSIX qw/strftime/;
9     use File::Slurp;
10     use Time::HiRes;
11 dpavlin 55 eval {
12     use Data::Dump qw/dump/;
13     };
14 dpavlin 30
15     my $dt = 3;
16 dpavlin 31 my $acpi_every = 10;
17 dpavlin 30
18 dpavlin 35 my $disk_blk_size = 512;
19    
20 dpavlin 31 my $debug = shift @ARGV;
21 dpavlin 30
22     $|=1;
23    
24     sub proc2hash {
25     my $f = shift;
26 dpavlin 39 return unless -f $f;
27 dpavlin 30 open(my $fh, '<', $f) || die "can't open $f: $!";
28     my $h;
29     while(<$fh>) {
30     chomp;
31     my ( $key, $value ) = split(/:\s+/, $_, 2);
32     $value =~ s/ m[VW]h*$//;
33     $h->{$key} = $value;
34     }
35 dpavlin 38 warn "$f ",dump( $h ) if ( $debug );
36 dpavlin 30 return $h;
37     }
38    
39 dpavlin 39 my $proc_acpi_battery;
40     sub find_proc_acpi {
41     my ( $path, $check ) = @_;
42    
43     if ( -e "/proc/acpi/$path" ) {
44     opendir(my $items, "/proc/acpi/$path") || die "can't open /proc/acpi/$path: $!";
45     foreach my $item ( readdir( $items ) ) {
46     $check->( $item ) && last;
47     }
48     }
49     }
50    
51     my $proc_acpi_thermal_zone_temperature;
52     find_proc_acpi('thermal_zone', sub {
53     my $thm = shift;
54     return if ( ! -e "/proc/acpi/thermal_zone/$thm/temperature" );
55     warn "# using thermal zone $thm\n" if ( $debug );
56     $proc_acpi_thermal_zone_temperature = "/proc/acpi/thermal_zone/$thm/temperature";
57     });
58    
59     find_proc_acpi('battery', sub {
60     my $bat = shift;
61     return unless $bat =~ /BAT/;
62    
63     warn "# testing battery $bat\n" if ( $debug );
64    
65     if ( proc2hash( "/proc/acpi/battery/$bat/info" )->{present} eq 'yes' ) {
66     $proc_acpi_battery = "/proc/acpi/battery/$bat";
67     warn "using $proc_acpi_battery to monitor battery\n";
68     }
69     });
70    
71 dpavlin 30 sub unit {
72     my $v = shift;
73 dpavlin 31
74     warn "unit( $v )\n" if ($debug);
75    
76 dpavlin 35 my @units = qw/b k M G/;
77 dpavlin 30 my $o = 0;
78    
79 dpavlin 40 while ( ( $v / 10000 ) >= 1 ) {
80 dpavlin 30 $o++;
81     $v /= 1024;
82     }
83    
84 dpavlin 31 if ( $v >= 1 ) {
85 dpavlin 34 return sprintf("%d%s", $v, $units[$o]);
86 dpavlin 33 } elsif ( $v == 0 ) {
87     return '';
88 dpavlin 31 } else {
89 dpavlin 34 return sprintf("%.1f%s", $v, $units[$o]);
90 dpavlin 31 }
91 dpavlin 30 }
92    
93     my ( $lrx, $ltx ) = ( 0, 0 );
94 dpavlin 35 my ( $ld_r, $ld_w ) = ( 0, 0 );
95 dpavlin 30 my $bat;
96    
97     my $i = 0;
98    
99     while ( 1 ) {
100     my $s = strftime("%Y-%m-%d %H:%M:%S", localtime());
101    
102 dpavlin 39 if ( $i % $acpi_every == 0 && $proc_acpi_battery ) {
103 dpavlin 30
104 dpavlin 39 my $state = proc2hash( "$proc_acpi_battery/state" );
105 dpavlin 30
106 dpavlin 32 if ( $state->{'present rate'} != 0 ) {
107 dpavlin 39 my $info = proc2hash( "$proc_acpi_battery/info" );
108 dpavlin 30
109 dpavlin 32 my $pcnt = $state->{'remaining capacity'} / $info->{'design capacity'};
110 dpavlin 30
111 dpavlin 32 my $time = $state->{'remaining capacity'} / ( $state->{'present rate'} );
112 dpavlin 38 $time = ( $info->{'design capacity'} - $state->{'remaining capacity'} ) / $state->{'present rate'} if ( $state->{'charging state'} eq 'charging' );
113 dpavlin 31
114 dpavlin 32 warn "time = $time\n" if ($debug);
115 dpavlin 30
116 dpavlin 32 my $hh = int( $time );
117     my $mm = int( ( $time - $hh ) * 60 );
118     my $ss = ( $time * 3600 ) % 60;
119 dpavlin 30
120 dpavlin 32 $bat = sprintf("%s %2d%% %02d:%02d:%02d %3.1fW!| ",
121     substr($state->{'charging state'},0,1),
122     $pcnt * 100, $hh, $mm, $ss,
123     $state->{'present rate'} / 1000
124     );
125    
126     } else {
127     $bat = '';
128     }
129 dpavlin 30 } else {
130 dpavlin 32 $bat =~ s/!(\|\s)$/ $1/;
131 dpavlin 30 }
132     $i++;
133    
134     my $load = read_file('/proc/loadavg');
135     chomp( $load );
136     $load =~ s!\s\d+/\d+.*!!;
137    
138 dpavlin 39 my $temp = '';
139     if ( $proc_acpi_thermal_zone_temperature ) {
140     $temp = read_file( $proc_acpi_thermal_zone_temperature );
141     chomp( $temp );
142     $temp =~ s!^.*:\s+!!;
143     }
144 dpavlin 30
145     my $net = read_file('/proc/net/dev');
146     my ( $rx, $tx ) = ( 0,0 );
147    
148     foreach ( split(/\n/, $net) ) {
149     s/^\s+//;
150 dpavlin 37 s/:\s+/:/;
151 dpavlin 30 my @n = split(/\s+/, $_, 17);
152 dpavlin 36 next unless ( $n[0] =~ s!(eth\d|ath\d):!! );
153 dpavlin 30
154     warn dump( @n ) if ($debug);
155 dpavlin 36 $rx += $n[0];
156     $tx += $n[8];
157 dpavlin 30 }
158     warn "rx: $rx tx: $tx\n" if ($debug);
159    
160 dpavlin 35 my $net_rx = ( $rx - $lrx ) / $dt;
161     my $net_tx = ( $tx - $ltx ) / $dt;
162 dpavlin 30 ( $lrx, $ltx ) = ( $rx, $tx );
163    
164 dpavlin 35 my $disk = read_file('/proc/diskstats');
165     my ( $d_r, $d_w ) = ( 0,0 );
166 dpavlin 30
167 dpavlin 35 foreach ( split(/\n/, $disk) ) {
168     s/^\s+//;
169     my @d = split(/\s+/, $_, 17);
170     next unless ( $d[2] =~ m/^[sh]d\w$/ );
171    
172     warn dump( @d ) if ($debug);
173     $d_r += $d[5] * $disk_blk_size;
174     $d_w += $d[7] * $disk_blk_size;
175     }
176     warn "d_r: $d_r d_w: $d_w\n" if ($debug);
177    
178     my $d_read = ( $d_r - $ld_r ) / $dt;
179     my $d_write = ( $d_w - $ld_w ) / $dt;
180     ( $ld_r, $ld_w ) = ( $d_r, $d_w );
181    
182     printf("%s | %s |%5s D %-5s|%5s > %-5s| %s%s\n",
183     $s,
184     $load,
185     unit( $d_read ), unit( $d_write ),
186     unit( $net_rx ), unit( $net_tx ),
187     $bat, $temp,
188     );
189    
190 dpavlin 30 sleep $dt;
191     }
192    

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