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#!/usr/bin/env perl
use strict;
use warnings;
use Test::More;
use Time::HiRes 'time';
use MCE::Mutex;
my $mutex = MCE::Mutex->new( impl => 'Channel2' );
is($mutex->impl(), 'Channel2', 'implementation name');
sub task1a {
$mutex->lock_exclusive;
sleep(1) for 1..2;
$mutex->unlock;
}
sub task1b {
my $guard = $mutex->guard_lock;
sleep(1) for 1..2;
}
sub spawn1 {
my ($i) = @_;
my $pid = fork;
if ($pid == 0) {
task1a() if ($i % 2 != 0);
task1b() if ($i % 2 == 0);
exit();
}
return $pid;
}
sub task2a {
$mutex->lock_exclusive2;
sleep(1) for 1..2;
$mutex->unlock2;
}
sub task2b {
my $guard = $mutex->guard_lock2;
sleep(1) for 1..2;
}
sub spawn2 {
my ($i) = @_;
my $pid = fork;
if ($pid == 0) {
task2a() if ($i % 2 != 0);
task2b() if ($i % 2 == 0);
exit();
}
return $pid;
}
my $start = time;
my @pids = map { spawn1($_), spawn2($_) } 1..3;
waitpid($_, 0) for @pids;
my $success = (time - $start > 3) ? 1 : 0;
is($success, 1, 'mutex lock_exclusive2');
done_testing;
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