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package MIMOSA;
use strict;
use warnings;
use 5.020;
use Carp;
use Carp::Assert::More;
use File::Slurp qw(read_dir);
use IPC::Run qw(harness);
use List::Util qw(max);
our $VERSION = '0.00';
sub new {
my ( $class, %opt ) = @_;
my $self = \%opt;
bless( $self, $class );
return $self;
}
sub start {
my ($self) = @_;
my $buf;
my $mim_daemon = harness(
[ 'MimosaCMD', '--start' ],
'<' => \undef,
'>&' => \$buf
);
my $mim_p1 = harness(
[ 'MimosaCMD', '--parameter', 'offset', $self->{mimosa_offset} ],
'<' => \undef,
'>&' => \$buf
);
my $mim_p2 = harness(
[ 'MimosaCMD', '--parameter', 'shunt', $self->{mimosa_shunt} ],
'<' => \undef,
'>&' => \$buf
);
my $mim_p3 = harness(
[ 'MimosaCMD', '--parameter', 'voltage', $self->{mimosa_voltage} ],
'<' => \undef,
'>&' => \$buf
);
my $mim_p4 = harness(
[ 'MimosaCMD', '--parameter', 'directory', 'src/apps/DriverEval' ],
'<' => \undef,
'>&' => \$buf
);
my $mim_start = harness(
[ 'MimosaCMD', '--mimosa-start' ],
'<' => \undef,
'>&' => \$buf
);
if ( $self->is_running ) {
croak("MIMOSA daemon is already running");
}
$mim_daemon->run or croak();
$mim_p1->run or croak();
$mim_p2->run or croak();
$mim_p3->run or croak();
$mim_start->run or croak();
}
sub is_running {
my ($self) = @_;
my $buf;
my $mim_check = harness(
[ 'pidof', 'MimosaCMD' ],
'<' => \undef,
'>&' => \$buf
);
return $mim_check->run;
}
sub stop {
my ($self) = @_;
my $buf;
my $mim_stop = harness(
[ 'MimosaCMD', '--mimosa-stop' ],
'<' => \undef,
'>&' => \$buf
);
my $mim_kill = harness(
[ 'MimosaCMD', '--stop' ],
'<' => \undef,
'>&' => \$buf
);
# make sure MIMOSA has all teh data
sleep(5);
$mim_stop->run or croak();
$self->wait_for_save;
$mim_kill->run or croak();
while ( $self->is_running ) {
sleep(1);
}
}
sub wait_for_save {
my ($self) = @_;
my $mtime = 0;
my $mtime_changed = 1;
while ($mtime_changed) {
sleep(3);
my @mim_files = grep { m{ \. mim $ }x } read_dir('.');
my @mtimes = map { ( stat($_) )[9] } @mim_files;
my $new_mtime = max @mtimes;
if ( $new_mtime != $mtime ) {
$mtime = $new_mtime;
}
else {
$mtime_changed = 0;
}
}
return $self;
}
sub kill {
my ($self) = @_;
my $buf;
my $mim_kill = harness(
[ 'MimosaCMD', '--stop' ],
'<' => \undef,
'>&' => \$buf
);
$mim_kill->run or croak();
}
sub calibrate {
my ($self) = @_;
$self->mimosactl('disconnect');
sleep(2);
$self->mimosactl('1k'); # actually 987 Ohm
sleep(2);
$self->mimosactl('100k'); # actually 99.3 kOhm
sleep(2);
$self->mimosactl('connect');
}
sub mimosactl {
my ( $self, $arg ) = @_;
my $buf;
my $mimosactl = harness(
[ 'mimosactl', $arg ],
'<' => \undef,
'>&' => \$buf
);
$mimosactl->run
or croak( "mimosactl $arg returned " . $mimosactl->full_result );
return $self;
}
1;
|
