* test/-ext-/popen_deadlock/test_popen_deadlock.rb: test [Bug #11265]

* ext/-test-/popen_deadlock/infinite_loop_dlsym.c: new ext to call
  dlsym(3) infinitely without GVL, used in the above test.
  
* ext/-test-/popen_deadlock/extconf.rb: extconf.rb for the above
  ext. Currently, only enabled on Solaris (main target) and Linux
  (as a reference platform and for debugging the ext).


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 35 insertions, 0 deletions

diff --git a/test/-ext-/popen_deadlock/test_popen_deadlock.rb b/test/-ext-/popen_deadlock/test_popen_deadlock.rb
new file mode 100644
index 0000000000..60ec6ccce4
--- /dev/null
+++ b/test/-ext-/popen_deadlock/test_popen_deadlock.rb
@@ -0,0 +1,35 @@
+begin
+  require '-test-/popen_deadlock/infinite_loop_dlsym'
+rescue LoadError
+  skip = true
+end
+
+class TestPopenDeadlock < Test::Unit::TestCase
+
+  # [Bug #11265]
+  def assert_popen_without_deadlock
+    assert_separately([], <<-"end;", timeout: 90) #do
+        require '-test-/popen_deadlock/infinite_loop_dlsym'
+
+        bug = '11265'.freeze
+        begin
+          t = Thread.new {
+            Thread.current.__infinite_loop_dlsym__("_ex_unwind")
+          }
+          str = IO.popen([ 'echo', bug ], 'r+') { |io| io.read }
+          assert_equal(bug, str.chomp)
+        ensure
+          t.kill if t
+        end
+    end;
+  end
+  private :assert_popen_without_deadlock
+
+  # 10 test methods are defined for showing progess reports
+  10.times do |i|
+    define_method("test_popen_without_deadlock_#{i}") {
+      assert_popen_without_deadlock
+    }
+  end
+
+end unless skip #class TestPopenDeadlock