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#!/usr/bin/env perl
use strict;
use warnings;
use utf8;
use open qw(:std :utf8);
use Test::More;
BEGIN {
use_ok 'MCE::Flow';
}
###############################################################################
## Relay ARRAY
## input_data is not required to run mce_flow
##
## statement(s) between relay_recv and relay
## are processed serially and orderly
{
my @ret = mce_flow {
max_workers => 2,
init_relay => [ 1, 1 ],
},
sub {
my $ind = MCE->wid - 1;
for my $i ( 1 .. 4 ) {
my @data = MCE->relay_recv;
MCE->gather( $data[ $ind ] );
MCE->relay( sub { $_->[ $ind ] += 1 } );
}
};
MCE::Flow->finish;
my @data = MCE->relay_final;
is( join('', sort @ret), '11223344', 'check relayed data - array' );
is( join('', @data), '55', 'check final value - array' );
}
###############################################################################
## Relay HASH
{
my @ret = mce_flow {
max_workers => 2,
init_relay => { 1 => 1, 2 => 1 },
},
sub {
my $key = MCE->wid;
for my $i ( 1 .. 4 ) {
my %data = MCE->relay_recv;
MCE->gather( $data{ $key } );
MCE->relay( sub { $_->{ $key } += 1 } );
}
};
MCE::Flow->finish;
my %data = MCE->relay_final;
is( join('', sort @ret), '11223344', 'check relayed data - hash' );
is( join('', values %data), '55', 'check final value - hash' );
}
###############################################################################
## Relay SCALAR
{
my @ret = mce_flow {
max_workers => 2,
init_relay => 1,
},
sub {
for my $i ( 1 .. 4 ) {
my $n = MCE->relay_recv;
MCE->gather( $n );
MCE->relay( sub { $_ += 1 } );
}
};
MCE::Flow->finish;
my $val = MCE->relay_final;
is( join('', sort @ret), '12345678', 'check relayed data - scalar' );
is( $val, '9', 'check final value - scalar' );
}
###############################################################################
## Relay UTF-8. This also tests gathering UTF-8 strings.
## https://sacred-texts.com/cla/usappho/sph02.htm (VII)
my $sappho_text =
"ἔλθε μοι καὶ νῦν, χαλεπᾶν δὲ λῦσον\n".
"ἐκ μερίμναν ὄσσα δέ μοι τέλεσσαι\n".
"θῦμοσ ἰμμέρρει τέλεσον, σὐ δ᾽ αὔτα\n".
"σύμμαχοσ ἔσσο.\n";
my $translation =
"Come then, I pray, grant me surcease from sorrow,\n".
"Drive away care, I beseech thee, O goddess\n".
"Fulfil for me what I yearn to accomplish,\n".
"Be thou my ally.\n";
{
my @data = mce_flow {
max_workers => 2,
init_relay => $sappho_text,
},
sub {
MCE->relay( sub {
$_ .= "ὲ";
MCE->gather( "ἔλθε μοι καὶ νῦν".MCE->wid );
});
};
MCE::Flow->finish;
my $text = MCE->relay_final;
is( $data[0], "ἔλθε μοι καὶ νῦν"."1" , 'check gathered data - worker 1' );
is( $data[1], "ἔλθε μοι καὶ νῦν"."2" , 'check gathered data - worker 2' );
is( $text , $sappho_text."ὲὲ" , 'check final value - utf8' );
}
done_testing;
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