core: add 'origflags' property to loop class

gevent/core.ppyx

@@ -387,6 +387,16 @@ cdef public class loop [object PyGeventLoopObject, type PyGeventLoop_Type]:
                     return value
             return backend
 
+    property origflags:
+
+        def __get__(self):
+            return _flags_to_list(self._ptr.origflags)
+
+    property origflags_int:
+
+        def __get__(self):
+            return self._ptr.origflags
+
     def io(self, int fd, int events, ref=True):
         return io(self, fd, events, ref)
 

gevent/libev.pxd

@@ -58,6 +58,7 @@ cdef extern from "libev.h":
         int activecnt
         int backend_fd
         int sigfd
+        unsigned int origflags
 
     struct ev_io:
         int fd