if (defined $thread_safe_var) {
my $stat = run_perl "require POSIX; require $module; exit($thread_safe_var ? POSIX::EXIT_SUCCESS() : POSIX::EXIT_FAILURE())";
- require POSIX;
- my $res = $stat >> 8;
- if ($res == POSIX::EXIT_SUCCESS()) {
- $is_threadsafe = 1;
- } elsif ($res == POSIX::EXIT_FAILURE()) {
- $is_threadsafe = !1;
+ if (defined $stat) {
+ require POSIX;
+ my $res = $stat >> 8;
+ if ($res == POSIX::EXIT_SUCCESS()) {
+ $is_threadsafe = 1;
+ } elsif ($res == POSIX::EXIT_FAILURE()) {
+ $is_threadsafe = !1;
+ }
}
if (not defined $is_threadsafe) {
skip_all "Could not detect if $module is thread safe or not";
)
}
-use Test::Leaner tests => 1 + (2 + 2 * 2) + 6 + (1 + 2 * 4);
+my $could_not_create_thread = 'Could not create thread';
+
+use Test::Leaner tests => 1 + (2 + 2 * 2) + 6 + (2 * 4 + 1) * 2 + 1;
sub is_loaded {
my ($affirmative, $desc) = @_;
my $res = load_test();
+ my $expected;
if ($affirmative) {
- is $res, 1, "$desc: module loaded";
+ $expected = 1;
+ $desc = "$desc: module loaded";
} else {
- is $res, 0, "$desc: module not loaded";
+ $expected = 0;
+ $desc = "$desc: module not loaded";
+ }
+
+ unless (is $res, $expected, $desc) {
+ $res = defined $res ? "'$res'" : 'undef';
+ $expected = "'$expected'";
+ diag("Test '$desc' failed: got $res, expected $expected");
}
+
+ return;
}
BEGIN {
# Test serial loadings
-my $thr = spawn(sub {
- my $here = "first serial thread";
- is_loaded 0, "$here, beginning";
+SKIP: {
+ my $thr = spawn(sub {
+ my $here = "first serial thread";
+ is_loaded 0, "$here, beginning";
- do_load;
- is_loaded 1, "$here, after loading";
+ do_load;
+ is_loaded 1, "$here, after loading";
- return;
-});
+ return;
+ });
-$thr->join;
-if (my $err = $thr->error) {
- die $err;
+ skip "$could_not_create_thread (serial 1)" => 2 unless defined $thr;
+
+ $thr->join;
+ if (my $err = $thr->error) {
+ die $err;
+ }
}
is_loaded 0, 'main body, in between serial loadings';
-$thr = spawn(sub {
- my $here = "second serial thread";
- is_loaded 0, "$here, beginning";
+SKIP: {
+ my $thr = spawn(sub {
+ my $here = "second serial thread";
+ is_loaded 0, "$here, beginning";
- do_load;
- is_loaded 1, "$here, after loading";
+ do_load;
+ is_loaded 1, "$here, after loading";
- return;
-});
+ return;
+ });
-$thr->join;
-if (my $err = $thr->error) {
- die $err;
+ skip "$could_not_create_thread (serial 2)" => 2 unless defined $thr;
+
+ $thr->join;
+ if (my $err = $thr->error) {
+ die $err;
+ }
}
is_loaded 0, 'main body, after serial loadings';
# Test nested loadings
-$thr = spawn(sub {
- my $here = 'parent thread';
- is_loaded 0, "$here, beginning";
-
- my $kid = spawn(sub {
- my $here = 'child thread';
+SKIP: {
+ my $thr = spawn(sub {
+ my $here = 'parent thread';
is_loaded 0, "$here, beginning";
+ SKIP: {
+ my $kid = spawn(sub {
+ my $here = 'child thread';
+ is_loaded 0, "$here, beginning";
+
+ do_load;
+ is_loaded 1, "$here, after loading";
+
+ return;
+ });
+
+ skip "$could_not_create_thread (nested child)" => 2 unless defined $kid;
+
+ $kid->join;
+ if (my $err = $kid->error) {
+ die "in child thread: $err\n";
+ }
+ }
+
+ is_loaded 0, "$here, after child terminated";
+
do_load;
is_loaded 1, "$here, after loading";
return;
});
- $kid->join;
- if (my $err = $kid->error) {
- die "in child thread: $err\n";
- }
-
- is_loaded 0, "$here, after child terminated";
-
- do_load;
- is_loaded 1, "$here, after loading";
-
- return;
-});
+ skip "$could_not_create_thread (nested parent)" => (3 + 2) unless defined $thr;
-$thr->join;
-if (my $err = $thr->error) {
- die $err;
+ $thr->join;
+ if (my $err = $thr->error) {
+ die $err;
+ }
}
is_loaded 0, 'main body, after nested loadings';
use threads;
use threads::shared;
-my @locks = (1) x 5;
-share($_) for @locks;
+my $sync_points = 7;
+
+my @locks_down = (1) x $sync_points;
+my @locks_up = (0) x $sync_points;
+share($_) for @locks_down, @locks_up;
+
+my $default_peers = 2;
sub sync_master {
- my ($id) = @_;
+ my ($id, $peers) = @_;
+
+ $peers = $default_peers unless defined $peers;
+
+ {
+ lock $locks_down[$id];
+ $locks_down[$id] = 0;
+ cond_broadcast $locks_down[$id];
+ }
{
- lock $locks[$id];
- $locks[$id] = 0;
- cond_broadcast $locks[$id];
+ lock $locks_up[$id];
+ cond_wait $locks_up[$id] until $locks_up[$id] == $peers;
}
}
my ($id) = @_;
{
- lock $locks[$id];
- cond_wait $locks[$id] until $locks[$id] == 0;
+ lock $locks_down[$id];
+ cond_wait $locks_down[$id] until $locks_down[$id] == 0;
+ }
+
+ {
+ lock $locks_up[$id];
+ $locks_up[$id]++;
+ cond_signal $locks_up[$id];
}
}
-my $thr1 = spawn(sub {
- my $here = 'first simultaneous thread';
- is_loaded 0, "$here, beginning";
- sync_slave 0;
+for my $first_thread_ends_first (0, 1) {
+ for my $id (0 .. $sync_points - 1) {
+ {
+ lock $locks_down[$id];
+ $locks_down[$id] = 1;
+ }
+ {
+ lock $locks_up[$id];
+ $locks_up[$id] = 0;
+ }
+ }
- do_load;
- is_loaded 1, "$here, after loading";
- sync_slave 1;
- sync_slave 2;
+ my $thr1_end = 'finishes first';
+ my $thr2_end = 'finishes last';
- sync_slave 3;
- is_loaded 1, "$here, still loaded while also loaded in the other thread";
- sync_slave 4;
+ ($thr1_end, $thr2_end) = ($thr2_end, $thr1_end)
+ unless $first_thread_ends_first;
- is_loaded 1, "$here, end";
+ SKIP: {
+ my $thr1 = spawn(sub {
+ my $here = "first simultaneous thread ($thr1_end)";
+ sync_slave 0;
- return;
-});
+ is_loaded 0, "$here, beginning";
+ sync_slave 1;
-my $thr2 = spawn(sub {
- my $here = 'second simultaneous thread';
- is_loaded 0, "$here, beginning";
- sync_slave 0;
+ do_load;
+ is_loaded 1, "$here, after loading";
+ sync_slave 2;
+ sync_slave 3;
- sync_slave 1;
- is_loaded 0, "$here, loaded in other thread but not here";
- sync_slave 2;
+ sync_slave 4;
+ is_loaded 1, "$here, still loaded while also loaded in the other thread";
+ sync_slave 5;
- do_load;
- is_loaded 1, "$here, after loading";
- sync_slave 3;
- sync_slave 4;
+ sync_slave 6 unless $first_thread_ends_first;
- is_loaded 1, "$here, end";
+ is_loaded 1, "$here, end";
- return;
-});
+ return;
+ });
-sync_master($_) for 0 .. $#locks;
+ skip "$could_not_create_thread (parallel 1)" => (4 * 2) unless defined $thr1;
-$thr1->join;
-if (my $err = $thr1->error) {
- die $err;
-}
+ my $thr2 = spawn(sub {
+ my $here = "second simultaneous thread ($thr2_end)";
+ sync_slave 0;
+
+ is_loaded 0, "$here, beginning";
+ sync_slave 1;
+
+ sync_slave 2;
+ sync_slave 3;
+ is_loaded 0, "$here, loaded in other thread but not here";
+
+ do_load;
+ is_loaded 1, "$here, after loading";
+ sync_slave 4;
+ sync_slave 5;
+
+ sync_slave 6 if $first_thread_ends_first;
+
+ is_loaded 1, "$here, end";
+
+ return;
+ });
+
+ sync_master($_) for 0 .. 5;
+
+ if (defined $thr2) {
+ ($thr2, $thr1) = ($thr1, $thr2) unless $first_thread_ends_first;
+
+ $thr1->join;
+ if (my $err = $thr1->error) {
+ die $err;
+ }
+
+ sync_master(6, 1);
+
+ $thr2->join;
+ if (my $err = $thr1->error) {
+ die $err;
+ }
+ } else {
+ sync_master(6, 1) unless $first_thread_ends_first;
+
+ $thr1->join;
+ if (my $err = $thr1->error) {
+ die $err;
+ }
+
+ skip "$could_not_create_thread (parallel 2)" => (4 * 1);
+ }
+ }
-$thr2->join;
-if (my $err = $thr2->error) {
- die $err;
+ is_loaded 0, 'main body, after simultaneous threads';
}
-is_loaded 0, 'main body, after simultaneous threads';
+do_load;
+is_loaded 1, 'main body, loaded at end';
projects / perl / modules / Scope-Upper.git / blobdiff