Line # Revision Author
1 30 dpavlin #!/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 59 dpavlin use Data::Dump qw/dump/;
12 30 dpavlin
13 my $dt = 3;
14 31 dpavlin my $acpi_every = 10;
15 30 dpavlin
16 35 dpavlin my $disk_blk_size = 512;
17
18 31 dpavlin my $debug = shift @ARGV;
19 67 dpavlin my $awesome = 1;
20 30 dpavlin
21 $|=1;
22
23 sub proc2hash {
24 my $f = shift;
25 39 dpavlin return unless -f $f;
26 30 dpavlin open(my $fh, '<', $f) || die "can't open $f: $!";
27 my $h;
28 while(<$fh>) {
29 chomp;
30 my ( $key, $value ) = split(/:\s+/, $_, 2);
31 $value =~ s/ m[VW]h*$//;
32 $h->{$key} = $value;
33 }
34 38 dpavlin warn "$f ",dump( $h ) if ( $debug );
35 30 dpavlin return $h;
36 }
37
38 39 dpavlin my $proc_acpi_battery;
39 sub find_proc_acpi {
40 my ( $path, $check ) = @_;
41
42 if ( -e "/proc/acpi/$path" ) {
43 opendir(my $items, "/proc/acpi/$path") || die "can't open /proc/acpi/$path: $!";
44 foreach my $item ( readdir( $items ) ) {
45 $check->( $item ) && last;
46 }
47 }
48 }
49
50 my $proc_acpi_thermal_zone_temperature;
51 find_proc_acpi('thermal_zone', sub {
52 my $thm = shift;
53 return if ( ! -e "/proc/acpi/thermal_zone/$thm/temperature" );
54 warn "# using thermal zone $thm\n" if ( $debug );
55 $proc_acpi_thermal_zone_temperature = "/proc/acpi/thermal_zone/$thm/temperature";
56 });
57
58 find_proc_acpi('battery', sub {
59 my $bat = shift;
60 56 dpavlin return unless $bat =~ /\w+/;
61 39 dpavlin
62 warn "# testing battery $bat\n" if ( $debug );
63
64 if ( proc2hash( "/proc/acpi/battery/$bat/info" )->{present} eq 'yes' ) {
65 $proc_acpi_battery = "/proc/acpi/battery/$bat";
66 warn "using $proc_acpi_battery to monitor battery\n";
67 }
68 });
69
70 30 dpavlin sub unit {
71 my $v = shift;
72 31 dpavlin
73 warn "unit( $v )\n" if ($debug);
74
75 35 dpavlin my @units = qw/b k M G/;
76 30 dpavlin my $o = 0;
77
78 40 dpavlin while ( ( $v / 10000 ) >= 1 ) {
79 30 dpavlin $o++;
80 $v /= 1024;
81 }
82
83 31 dpavlin if ( $v >= 1 ) {
84 34 dpavlin return sprintf("%d%s", $v, $units[$o]);
85 33 dpavlin } elsif ( $v == 0 ) {
86 return '';
87 31 dpavlin } else {
88 34 dpavlin return sprintf("%.1f%s", $v, $units[$o]);
89 31 dpavlin }
90 30 dpavlin }
91
92 my ( $lrx, $ltx ) = ( 0, 0 );
93 35 dpavlin my ( $ld_r, $ld_w ) = ( 0, 0 );
94 80 dpavlin my $bat = '';
95 30 dpavlin
96 my $i = 0;
97 80 dpavlin my $sys_fs = '/sys/class/power_supply/BAT0';
98 30 dpavlin
99 while ( 1 ) {
100 my $s = strftime("%Y-%m-%d %H:%M:%S", localtime());
101
102 80 dpavlin if ( $i % $acpi_every == 0 ) {
103 96 dpavlin my $sysfs_path = glob "$sys_fs/*_full";
104 if ( $sysfs_path ) {
105 30 dpavlin
106 96 dpavlin my $full = read_file( $sysfs_path );
107 $sysfs_path =~ s/_full/_now/;
108 my $now = read_file( $sysfs_path );
109 89 dpavlin $bat = sprintf("%2d%% | ", $now * 100 / $full );
110
111 } elsif ( $proc_acpi_battery ) {
112
113 80 dpavlin my $state = proc2hash( "$proc_acpi_battery/state" );
114 30 dpavlin
115 80 dpavlin if ( $state->{'present rate'} =~ m/^\d+$/ && $state->{'present rate'} != 0 ) {
116 my $info = proc2hash( "$proc_acpi_battery/info" );
117 30 dpavlin
118 80 dpavlin my $pcnt = $state->{'remaining capacity'} / $info->{'design capacity'};
119 30 dpavlin
120 80 dpavlin my $time = $state->{'remaining capacity'} / ( $state->{'present rate'} );
121 $time = ( $info->{'design capacity'} - $state->{'remaining capacity'} ) / $state->{'present rate'} if ( $state->{'charging state'} eq 'charging' );
122 31 dpavlin
123 80 dpavlin warn "time = $time\n" if ($debug);
124 30 dpavlin
125 80 dpavlin my $hh = int( $time );
126 my $mm = int( ( $time - $hh ) * 60 );
127 my $ss = ( $time * 3600 ) % 60;
128 30 dpavlin
129 80 dpavlin $bat = sprintf("%s %2d%% %02d:%02d:%02d %3.1fW!| ",
130 substr($state->{'charging state'},0,1),
131 $pcnt * 100, $hh, $mm, $ss,
132 $state->{'present rate'} / 1000
133 );
134 32 dpavlin }
135 80 dpavlin }
136 30 dpavlin } else {
137 32 dpavlin $bat =~ s/!(\|\s)$/ $1/;
138 30 dpavlin }
139 $i++;
140
141 my $load = read_file('/proc/loadavg');
142 chomp( $load );
143 $load =~ s!\s\d+/\d+.*!!;
144
145 39 dpavlin my $temp = '';
146 if ( $proc_acpi_thermal_zone_temperature ) {
147 $temp = read_file( $proc_acpi_thermal_zone_temperature );
148 chomp( $temp );
149 $temp =~ s!^.*:\s+!!;
150 }
151 30 dpavlin
152 my $net = read_file('/proc/net/dev');
153 my ( $rx, $tx ) = ( 0,0 );
154
155 foreach ( split(/\n/, $net) ) {
156 s/^\s+//;
157 37 dpavlin s/:\s+/:/;
158 30 dpavlin my @n = split(/\s+/, $_, 17);
159 36 dpavlin next unless ( $n[0] =~ s!(eth\d|ath\d):!! );
160 30 dpavlin
161 warn dump( @n ) if ($debug);
162 36 dpavlin $rx += $n[0];
163 $tx += $n[8];
164 30 dpavlin }
165 warn "rx: $rx tx: $tx\n" if ($debug);
166
167 35 dpavlin my $net_rx = ( $rx - $lrx ) / $dt;
168 my $net_tx = ( $tx - $ltx ) / $dt;
169 30 dpavlin ( $lrx, $ltx ) = ( $rx, $tx );
170
171 35 dpavlin my $disk = read_file('/proc/diskstats');
172 my ( $d_r, $d_w ) = ( 0,0 );
173 30 dpavlin
174 35 dpavlin foreach ( split(/\n/, $disk) ) {
175 s/^\s+//;
176 my @d = split(/\s+/, $_, 17);
177 next unless ( $d[2] =~ m/^[sh]d\w$/ );
178
179 warn dump( @d ) if ($debug);
180 $d_r += $d[5] * $disk_blk_size;
181 $d_w += $d[7] * $disk_blk_size;
182 }
183 warn "d_r: $d_r d_w: $d_w\n" if ($debug);
184
185 my $d_read = ( $d_r - $ld_r ) / $dt;
186 my $d_write = ( $d_w - $ld_w ) / $dt;
187 ( $ld_r, $ld_w ) = ( $d_r, $d_w );
188
189 57 dpavlin my $out = sprintf("%s | %s |%5s D %-5s|%5s > %-5s| %s%s\n",
190 35 dpavlin $s,
191 $load,
192 unit( $d_read ), unit( $d_write ),
193 unit( $net_rx ), unit( $net_tx ),
194 $bat, $temp,
195 );
196
197 59 dpavlin print $out;
198 67 dpavlin if ( $awesome ) {
199 open(my $fh, '|-', 'awesome-client') || die "can't pipe to awesome-client: $!";
200 74 dpavlin print $fh "0 widget_tell mystatusbar dwm-status text $out\n";
201 67 dpavlin close($fh);
202 }
203 57 dpavlin
204 30 dpavlin sleep $dt;
205 }
206