* thread.cc (pthread::cancelable_wait): Rearrange slightly.

	Add do_sig_wait parameter.  Wait for signal_arrived if set to true.
	Return WAIT_SIGNALED if signal arrived.
	(pthread_cond::wait): Accomodate change to pthread::cancelable_wait.
	(pthread::join): Ditto.
	(semaphore::_timedwait): Ditto.
	(semaphore::_wait): Ditto.  Change to return int to allow status
	feedback.
	(semaphore::wait): Return return value from semaphore::_wait.
	* thread.h (WAIT_SIGNALED): New definition.
	(pthread::cancelable_wait): Change declaration.  Define do_sig_wait
	as false by default to not interfere with existing calls accidentally.
	(semaphore::_wait): Declare int.

1 files changed, 3 insertions, 2 deletions

diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h
index 7d68b5f..e5a0bcc 100644
--- a/winsup/cygwin/thread.h
+++ b/winsup/cygwin/thread.h
@@ -347,6 +347,7 @@ private:
 };
 
 #define WAIT_CANCELED   (WAIT_OBJECT_0 + 1)
+#define WAIT_SIGNALED  (WAIT_OBJECT_0 + 2)
 
 class _cygtls;
 class pthread: public verifyable_object
@@ -393,7 +394,7 @@ public:
   virtual void testcancel ();
   static void static_cancel_self ();
 
-  static DWORD cancelable_wait (HANDLE object, DWORD timeout, const bool do_cancel = true);
+  static DWORD cancelable_wait (HANDLE object, DWORD timeout, const bool do_cancel = true, const bool do_sig_wait = false);
 
   virtual int setcancelstate (int state, int *oldstate);
   virtual int setcanceltype (int type, int *oldtype);
@@ -646,7 +647,7 @@ public:
   }
 
 private:
-  void _wait ();
+  int _wait ();
   void _post ();
   int _getvalue (int *sval);
   int _trywait ();