extend timeout limit.

* test/ruby/test_process.rb (test_threading_works_after_exec_fail):
  extend timeout limit from 30 to 90 because some test nodes fails
  with timeout error.

  Also use a Queue instead of a local variable to communicate with
  threads.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61347 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_process.rb

@@ -2281,7 +2281,7 @@ EOS
   def test_threading_works_after_exec_fail
     r, w = IO.pipe
     pid = status = nil
-    Timeout.timeout(30) do
+    Timeout.timeout(90) do
       pid = fork do
         r.close
         begin
@@ -2289,11 +2289,12 @@ EOS
         rescue SystemCallError
           w.syswrite("exec failed\n")
         end
+        q = Queue.new
         run = true
-        th1 = Thread.new { i = 0; i += 1 while run; i }
-        th2 = Thread.new { j = 0; j += 1 while run && Thread.pass.nil?; j }
+        th1 = Thread.new { i = 0; i += 1 while q.empty?; i }
+        th2 = Thread.new { j = 0; j += 1 while q.empty? && Thread.pass.nil?; j }
         sleep 0.5
-        run = false
+        q << true
         w.syswrite "#{th1.value} #{th2.value}\n"
       end
       w.close