POSIX_MQ#autoclose= propagates to IO

If a corresponding IO object exists or is created later, propagate
autoclose to the corresponding IO object to avoid simplify autoclose
handling for the user.  This hopefully avoids nasty surprises in case
users disable autoclose but want to keep the IO object around.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/test_posix_mq.rb b/test/test_posix_mq.rb
index a4fc407..35967e8 100644
--- a/test/test_posix_mq.rb
+++ b/test/test_posix_mq.rb
@@ -258,6 +258,14 @@ class Test_POSIX_MQ < Test::Unit::TestCase
     end
   end if POSIX_MQ.respond_to?(:for_fd) && POSIX_MQ.method_defined?(:to_io)
 
+  def test_autoclose_propagates_to_io
+    @mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
+    @mq.autoclose = false
+    assert_equal false, @mq.to_io.autoclose?
+    @mq.autoclose = true
+    assert_equal true, @mq.to_io.autoclose?
+  end if POSIX_MQ.method_defined?(:to_io)
+
   def test_notify
     rd, wr = IO.pipe
     orig = trap(:USR1) { wr.syswrite('.') }