From fb5e77103dd443cc2112ba14dc665aa5ec072ce6 Mon Sep 17 00:00:00 2001
From: Tony Cook <tony@develop-help.com>
Date: Wed, 30 May 2018 14:03:04 +1000
Subject: [PATCH] (perl #122112) test for signal handler death in pclose
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Signed-off-by: Petr Písař <ppisar@redhat.com>
---
 t/io/pipe.t | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/t/io/pipe.t b/t/io/pipe.t
index f9ee65afe8..1d01db6af6 100644
--- a/t/io/pipe.t
+++ b/t/io/pipe.t
@@ -10,7 +10,7 @@ if (!$Config{'d_fork'}) {
     skip_all("fork required to pipe");
 }
 else {
-    plan(tests => 25);
+    plan(tests => 27);
 }
 
 my $Perl = which_perl();
@@ -241,3 +241,24 @@ SKIP: {
 
   is($child, -1, 'child reaped if piped program cannot be executed');
 }
+
+{
+    # [perl #122112] refcnt: fd -1 < 0 when a signal handler dies
+    # while a pipe close is waiting on a child process
+    my $prog = <<PROG;
+\$SIG{ALRM}=sub{die};
+alarm 1;
+\$Perl = "$Perl";
+my \$cmd = qq(\$Perl -e "sleep 3");
+my \$pid = open my \$fh, "|\$cmd" or die "\$!\n";
+close \$fh;
+PROG
+    print $prog;
+    my $out = fresh_perl($prog, {});
+    $::TODO = "not fixed yet";
+    cmp_ok($out, '!~', qr/refcnt/, "no exception from PerlIO");
+    undef $::TODO;
+    # checks that that program did something rather than failing to
+    # compile
+    cmp_ok($out, '=~', qr/Died at/, "but we did get the exception from die");
+}
-- 
2.20.1