io.c: close before wait

* io.c (io_close_fptr): notify then close, and wait for other
  threads before free fptr.  [ruby-core:79262] [Bug #13158]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57422 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 21 insertions, 0 deletions

diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 4c224a247f..b16662cd42 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -3397,6 +3397,27 @@ __END__
     end;
   end
 
+  def test_race_closed_stream
+    bug13158 = '[ruby-core:79262] [Bug #13158]'
+    closed = nil
+    IO.pipe do |r, w|
+      thread = Thread.new do
+        begin
+          while r.gets
+          end
+        ensure
+          closed = r.closed?
+        end
+      end
+      sleep 0.01
+      r.close
+      assert_raise_with_message(IOError, /stream closed/) do
+        thread.join
+      end
+      assert_equal(true, closed, "#{bug13158}: stream should be closed")
+    end
+  end
+
   if RUBY_ENGINE == "ruby" # implementation details
     def test_foreach_rs_conversion
       make_tempfile {|t|