X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2FVPIT%2FTestHelpers.pm;h=10550eec28c139e43612a455205230900984c994;hb=32b272838d5cd4620aec5d8b2c6d2fea43e8e0a9;hp=2396cade85c2812fbf0cadcf5c3a81e1b613adde;hpb=6d578776b5176e59276ca1581e8ceffdfb2da760;p=perl%2Fmodules%2FVPIT-TestHelpers.git

diff --git a/lib/VPIT/TestHelpers.pm b/lib/VPIT/TestHelpers.pm
index 2396cad..10550ee 100644
--- a/lib/VPIT/TestHelpers.pm
+++ b/lib/VPIT/TestHelpers.pm
@@ -193,7 +193,15 @@ C<$p> is prefixed to the constants exported by this feature (defaults to C<''>).
 
 =item *
 
-Dependencies : none
+Dependencies :
+
+=over 8
+
+=item -
+
+L<File::Spec>
+
+=back
 
 =item *
 
@@ -207,6 +215,10 @@ C<run_perl $code>
 
 =item -
 
+C<run_perl_file $file>
+
+=item -
+
 C<RUN_PERL_FAILED> (possibly prefixed by C<$p>)
 
 =back
@@ -241,8 +253,14 @@ sub fresh_perl_env (&) {
 sub init_run_perl {
  my $p = sanitize_prefix(shift);
 
+ # This is only required for run_perl_file(), so it is not needed for the
+ # threads feature which only calls run_perl() - don't forget to update its
+ # requirements if this ever changes.
+ require File::Spec;
+
  return (
   run_perl              => \&run_perl,
+  run_perl_file         => \&run_perl_file,
   "${p}RUN_PERL_FAILED" => sub () { 'Could not execute perl subprocess' },
  );
 }
@@ -260,6 +278,20 @@ sub run_perl {
  };
 }
 
+sub run_perl_file {
+ my $file = shift;
+
+ $file = File::Spec->rel2abs($file);
+ unless (-e $file and -r _) {
+  die 'Could not run perl file';
+ }
+
+ fresh_perl_env {
+  my ($perl, @perl_args) = @_;
+  system { $perl } $perl, @perl_args, $file;
+ };
+}
+
 =head2 C<capture>
 
 =over 4
@@ -600,6 +632,18 @@ C<spawn $coderef>
 
 =back
 
+=item *
+
+Notes :
+
+=over 8
+
+=item -
+
+C<< exit => 'threads_only' >> is passed to C<< threads->import >>.
+
+=back
+
 =back
 
 =cut
@@ -612,6 +656,7 @@ sub init_threads {
 
  if (defined $pkg and defined $threadsafe_var) {
   my $threadsafe;
+  # run_perl() doesn't actually require anything
   my $stat = run_perl("require POSIX; require $pkg; exit($threadsafe_var ? POSIX::EXIT_SUCCESS() : POSIX::EXIT_FAILURE())");
   if (defined $stat) {
    require POSIX;
@@ -644,7 +689,9 @@ sub init_threads {
   die "$test_module was loaded too soon" if defined $test_module;
  }
 
- load_or_skip_all 'threads',         $force ? '0' : '1.67', [ ];
+ load_or_skip_all 'threads',         $force ? '0' : '1.67', [
+  exit => 'threads_only',
+ ];
  load_or_skip_all 'threads::shared', $force ? '0' : '1.14', [ ];
 
  diag "Threads testing forced by \$ENV{$force_var}" if $force;
@@ -672,7 +719,18 @@ sub spawn {
 
 Import :
 
-    use VPIT::TestHelpers 'usleep'
+    use VPIT::TestHelpers 'usleep' => [ @impls ];
+
+where :
+
+=over 8
+
+=item -
+
+C<@impls> is the list of desired implementations (which may be C<'Time::HiRes'>, C<'select'> or C<'sleep'>), in the order they should be checked.
+When the list is empty, it defaults to all of them.
+
+=back
 
 =item *
 
@@ -695,20 +753,60 @@ C<usleep $microseconds>
 =cut
 
 sub init_usleep {
- my $usleep;
+ my (@impls) = @_;
 
- if (do { local $@; eval { require Time::HiRes; 1 } }) {
-  defined and diag "Using usleep() from Time::HiRes $_"
+ my %impls = (
+  'Time::HiRes' => sub {
+   if (do { local $@; eval { require Time::HiRes; 1 } }) {
+    defined and diag "Using usleep() from Time::HiRes $_"
                                                       for $Time::HiRes::VERSION;
-  $usleep = \&Time::HiRes::usleep;
- } else {
-  diag 'Using fallback usleep()';
-  $usleep = sub {
-   my $s = int($_[0] / 1e6);
-   sleep $s if $s;
-  };
+    return \&Time::HiRes::usleep;
+   } else {
+    return undef;
+   }
+  },
+  'select' => sub {
+   if ($Config::Config{d_select}) {
+    diag 'Using select()-based fallback usleep()';
+    return sub ($) {
+     my $s = $_[0];
+     my $r = 0;
+     while ($s > 0) {
+      my ($found, $t) = select(undef, undef, undef, $s / 1e6);
+      last unless defined $t;
+      $t  = int($t * 1e6);
+      $s -= $t;
+      $r += $t;
+     }
+     return $r;
+    };
+   } else {
+    return undef;
+   }
+  },
+  'sleep' => sub {
+   diag 'Using sleep()-based fallback usleep()';
+   return sub ($) {
+    my $ms = int $_[0];
+    my $s  = int($ms / 1e6) + ($ms % 1e6 == 0 ? 0 : 1);
+    my $t  = sleep $s;
+    return $t * 1e6;
+   };
+  },
+ );
+
+ @impls = qw<Time::HiRes select sleep> unless @impls;
+
+ my $usleep;
+ for my $impl (@impls) {
+  next unless defined $impl and $impls{$impl};
+  $usleep = $impls{$impl}->();
+  last if defined $usleep;
  }
 
+ skip_all "Could not find a suitable usleep() implementation among: @impls"
+                                                                 unless $usleep;
+
  return usleep => $usleep;
 }