Add MonitorMinx#mon_locked? and #mon_owned? to check states of objects

Patched by Satoshi "Moris" Tagomori <tagomoris@gmail.com>.  [Fix GH-1699]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59971 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/monitor.rb b/lib/monitor.rb
index 3ded0b3658..cbc1a13a21 100644
--- a/lib/monitor.rb
+++ b/lib/monitor.rb
@@ -204,6 +204,20 @@ module MonitorMixin
   end
 
   #
+  # Returns true if this monitor is locked by any thread
+  #
+  def mon_locked?
+    @mon_mutex.locked?
+  end
+
+  #
+  # Returns true if this monitor is locked by current thread.
+  #
+  def mon_owned?
+    @mon_mutex.locked? && @mon_owner == Thread.current
+  end
+
+  #
   # Enters exclusive section and executes the block.  Leaves the exclusive
   # section automatically when the block exits.  See example under
   # +MonitorMixin+.