/[scripts]/trunk/dwm-status.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /trunk/dwm-status.pl

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Revision 40 - (show annotations)
Fri Jun 15 20:34:04 2007 UTC (15 years, 5 months ago) by dpavlin
File MIME type: text/plain
File size: 4142 byte(s)
write digits up to 10000 (4-digit) and don't switch at 1024

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

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