* fhandler_windows.cc (fhandler_windows::read): Use

pthread::get_cancel_event to fetch thread's cancel event.
	* flock.cc (lf_setlock): Ditto.
	* posix_ipc.cc (ipc_cond_timedwait): Ditto.
	* thread.cc (pthread::get_cancel_event): New static method.
	* thread.h (pthread::get_cancel_event): Declare.

winsup/cygwin/thread.h

@@ -399,6 +399,7 @@ public:
   virtual int cancel ();
 
   virtual void testcancel ();
+  static HANDLE get_cancel_event ();
   static void static_cancel_self ();
 
   virtual int setcancelstate (int state, int *oldstate);