.

wcfs/__init__.py

@@ -60,6 +60,7 @@ from ZODB.utils import z64, u64, p64
 from zodbtools.util import ashex as h, fromhex
 
 from .internal import mm
+from .internal._wcfs import PyWatchLink as WatchLink
 
 from six import reraise
 
@@ -391,7 +392,7 @@ def unmap(mmap):
     f.mmaps.remove(mmap)
 
 
-
+"""
 # WatchLink represents /head/watch link opened on wcfs.
 #
 # .sendReq()/.recvReq() provides raw IO in terms of wcfs invalidation protocol messages.
@@ -633,7 +634,7 @@ class SrvReq(object):
     def blk(req):     return req._parse()[1]
     @property
     def at(req):      return req._parse()[2]
-
+"""
 
 
 

wcfs/internal/_wcfs.pyx

@@ -22,3 +22,6 @@
 # distutils: language=c++
 
 # XXX doc
+
+cdef class PyWatchLink:
+    pass

wcfs/internal/wcfs_misc.cpp

@@ -47,6 +47,10 @@ namespace os {
 
 static error _pathError(const char *op, const string &path, int syserr);
 
+int     File::fd() const    { return _fd; }
+string  File::name() const  { return _path; }
+
+
 tuple<File, error> open(const string &path, int flags, mode_t mode) {
     File f;
     f._path  = path;