61 lines
1012 B
Perl
61 lines
1012 B
Perl
use Thread;
|
|
|
|
$level = 0;
|
|
|
|
sub single_file : locked {
|
|
my $arg = shift;
|
|
$level++;
|
|
print "Level $level for $arg\n";
|
|
print "(something is wrong)\n" if $level < 0 || $level > 1;
|
|
sleep 1;
|
|
$level--;
|
|
print "Back to level $level\n";
|
|
}
|
|
|
|
sub start_bar {
|
|
my $i;
|
|
print "start bar\n";
|
|
for $i (1..3) {
|
|
print "bar $i\n";
|
|
single_file("bar $i");
|
|
sleep 1 if rand > 0.5;
|
|
}
|
|
print "end bar\n";
|
|
return 1;
|
|
}
|
|
|
|
sub start_foo {
|
|
my $i;
|
|
print "start foo\n";
|
|
for $i (1..3) {
|
|
print "foo $i\n";
|
|
single_file("foo $i");
|
|
sleep 1 if rand > 0.5;
|
|
}
|
|
print "end foo\n";
|
|
return 1;
|
|
}
|
|
|
|
sub start_baz {
|
|
my $i;
|
|
print "start baz\n";
|
|
for $i (1..3) {
|
|
print "baz $i\n";
|
|
single_file("baz $i");
|
|
sleep 1 if rand > 0.5;
|
|
}
|
|
print "end baz\n";
|
|
return 1;
|
|
}
|
|
|
|
$| = 1;
|
|
srand($$^$^T);
|
|
|
|
$foo = new Thread \&start_foo;
|
|
$bar = new Thread \&start_bar;
|
|
$baz = new Thread \&start_baz;
|
|
$foo->join();
|
|
$bar->join();
|
|
$baz->join();
|
|
print "main: threads finished, exiting\n";
|