Unload dynamically loaded libraries at END-time

[perl/modules/Test-Valgrind.git] / lib / Test / Valgrind.pm

diff --git a/lib/Test/Valgrind.pm b/lib/Test/Valgrind.pm
index f50edd67eba67a68b166dbc8fb195f6de22b4044..e70a912d2d089512750322f9a8d84fb5165daadb 100644 (file)
--- a/lib/Test/Valgrind.pm
+++ b/lib/Test/Valgrind.pm
@@ -18,11 +18,11 @@ Test::Valgrind - Test Perl code through valgrind.
 
 =head1 VERSION
 
-Version 0.06
+Version 0.07
 
 =cut
 
-our $VERSION = '0.06';
+our $VERSION = '0.07';
 
 =head1 SYNOPSIS
 
@@ -139,7 +139,8 @@ sub import {
   $callers = int $callers;
   my $vg = Test::Valgrind::Suppressions::VG_PATH;
   if (!$vg || !-x $vg) {
-   for (split /:/, $ENV{PATH}) {
+   require Config;
+   for (split /$Config::Config{path_sep}/, $ENV{PATH}) {
     $_ .= '/valgrind';
     if (-x) {
      $vg = $_;
@@ -151,21 +152,25 @@ sub import {
     return;
    } 
   }
-  pipe my $rdr, my $wtr or croak "pipe(\$rdr, \$wtr): $!";
+  pipe my $ordr, my $owtr or die "pipe(\$ordr, \$owtr): $!";
+  pipe my $vrdr, my $vwtr or die "pipe(\$vrdr, \$vwtr): $!";
   my $pid = fork;
   if (!defined $pid) {
-   croak "fork(): $!";
+   die "fork(): $!";
   } elsif ($pid == 0) {
-   setpgrp 0, 0 or croak "setpgrp(0, 0): $!";
-   close $rdr or croak "close(\$rdr): $!";
-   fcntl $wtr, F_SETFD, 0 or croak "fcntl(\$wtr, F_SETFD, 0): $!";
+   setpgrp 0, 0 or die "setpgrp(0, 0): $!";
+   close $ordr or die "close(\$ordr): $!";
+   open STDOUT, '>&=', $owtr or die "open(STDOUT, '>&=', \$owtr): $!";
+   close $vrdr or die "close(\$vrdr): $!";
+   fcntl $vwtr, F_SETFD, 0 or die "fcntl(\$vwtr, F_SETFD, 0): $!";
    my @args = (
+    $vg,
     '--tool=memcheck',
     '--leak-check=full',
     '--leak-resolution=high',
     '--num-callers=' . $callers,
     '--error-limit=yes',
-    '--log-fd=' . fileno($wtr)
+    '--log-fd=' . fileno($vwtr)
    );
    unless ($args{no_supp}) {
     for (Test::Valgrind::Suppressions::supp_path(), $args{supp}) {
@@ -178,12 +183,12 @@ sub import {
    push @args, $^X;
    push @args, '-I' . $_ for @INC;
    push @args, '-MTest::Valgrind=run,1', $file;
-   print STDERR "valgrind @args\n" if $args{diag};
+   print STDOUT "valgrind @args\n";
    local $ENV{PERL_DESTRUCT_LEVEL} = 3;
    local $ENV{PERL_DL_NONLAZY} = 1;
-   exec $vg, @args;
+   exec { $args[0] } @args;
+   die "exec @args: $!";
   }
-  close $wtr or croak "close(\$wtr): $!";
   local $SIG{INT} = sub { kill -(SIGTERM) => $pid };
   $Test->plan(tests => 5) unless $args{no_test} or defined $Test->has_plan;
   my @tests = (
@@ -191,7 +196,9 @@ sub import {
    'definitely lost', 'indirectly lost', 'possibly lost', 'still reachable'
   );
   my %res = map { $_ => 0 } @tests;
-  while (<$rdr>) {
+  close $owtr or die "close(\$owtr): $!";
+  close $vwtr or die "close(\$vwtr): $!";
+  while (<$vrdr>) {
    $Test->diag($_) if $args{diag};
    if (/^=+\d+=+\s*FATAL\s*:\s*(.*)/) {
     chomp(my $err = $1);
@@ -210,6 +217,8 @@ sub import {
    }
   }
   waitpid $pid, 0;
+  $Test->diag(do { local $/; <$ordr> }) if $args{diag};
+  close $ordr or die "close(\$ordr): $!";
   my $failed = 5;
   my $cb = ($args{no_test} ? \&_counter
                            : ($args{cb} ? $args{cb} : \&_tester));
@@ -222,15 +231,21 @@ sub import {
  }
 }
 
+END {
+ if ($run and eval { require DynaLoader; 1 }) {
+  DynaLoader::dl_unload_file($_) for @DynaLoader::dl_librefs;
+ }
+}
+
 =head1 CAVEATS
 
 You can't use this module to test code given by the C<-e> command-line switch.
 
-Results will most likely be better if your perl is built with debugging enabled. Using the latest valgrind available will also help.
+Perl 5.8 is notorious for leaking like there's no tomorrow, so the suppressions are very likely not to be very accurate on it. Anyhow, results will most likely be better if your perl is built with debugging enabled. Using the latest valgrind available will also help.
 
 This module is not really secure. It's definitely not taint safe. That shouldn't be a problem for test files.
 
-If your tests output to STDERR, everything will be eaten in the process. In particular, running this module against test files will obliterate their original test results.
+What your tests output to STDOUT is eaten unless you pass the C<diag> option, in which case it will be reprinted as diagnostics. STDERR is kept untouched.
 
 =head1 DEPENDENCIES
 
@@ -248,7 +263,7 @@ L<Devel::Leak>, L<Devel::LeakTrace>, L<Devel::LeakTrace::Fast>.
 
 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
 
-You can contact me by mail or on #perl @ FreeNode (vincent or Prof_Vince).
+You can contact me by mail or on C<irc.perl.org> (vincent).
 
 =head1 BUGS