1 |
package GPS; |
2 |
|
3 |
use strict; |
4 |
use warnings; |
5 |
use POSIX (); |
6 |
use Coro::Socket; |
7 |
|
8 |
our $VERSION = 0.01; |
9 |
|
10 |
sub new { |
11 |
my ($class, %arg) = @_; |
12 |
$arg{port} ||= 2947; |
13 |
$arg{host} ||= 'localhost'; |
14 |
|
15 |
my $sock = new Coro::Socket PeerHost => $arg{host}, PeerPort => $arg{port} |
16 |
or die 'GPSD ($arg{host}:$arg{port}): $!'; |
17 |
print $sock "HELO\n"; |
18 |
<$sock> =~ /GPSD/ or die 'no GPSD'; |
19 |
|
20 |
bless { |
21 |
fh => $sock, |
22 |
minpoll => $arg{minpoll} || 1, |
23 |
last => 0, |
24 |
data => {} |
25 |
}, $class; |
26 |
} |
27 |
|
28 |
sub poll { |
29 |
my $self = shift; |
30 |
|
31 |
print {$self->{fh}} "dpva\n"; |
32 |
|
33 |
if ($self->{fh}->readline =~ m%GPSD,D=(\d\d)/(\d\d)/(\d\d\d\d) (\d\d):(\d\d):(\d\d),P=([\-0-9.]+) ([\-0-9.]+),V=([0-9.]+),A=([\-0-9.]+)%) { |
34 |
local $ENV{TZ} = "+0000"; |
35 |
$self->{data} = { |
36 |
time => (POSIX::mktime $6,$5,$4,$2,$1-1,$3-1900,0,0), |
37 |
lat => $7, |
38 |
long => $8, |
39 |
v => $9, |
40 |
alt => $10, |
41 |
}; |
42 |
$self->{last} = time; |
43 |
} |
44 |
} |
45 |
|
46 |
sub data { |
47 |
$_[0]->poll if time - $_[0]{last} >= $_[0]{minpoll}; |
48 |
$_[0]{data}; |
49 |
} |
50 |
|
51 |
1; |
52 |
|