.

bigfile/_bigfile.c

@@ -902,14 +902,35 @@ out:
 }
 
 
+/* PyBigFile: mmap methods.
+ * They redirect op X to type.blkmmapper.X without going to Python level */
+
+static void*
+pybigfile_mmap_setup_read(VMA *vma, BigFile *file0, blk_t blk, size_t blklen)
+{
+    BUG();  // XXX
+}
+
+static int
+pybigfile_remmap_blk_read(VMA *vma, BigFile *file0, blk_t blk)
+{
+    BUG();  // XXX
+}
+
+static void
+pybigfile_munmap(VMA *vma, BigFile *file0)
+{
+    BUG();  // XXX
+}
+
+
 static const struct bigfile_ops pybigfile_ops = {
     .loadblk    = pybigfile_loadblk,
     .storeblk   = pybigfile_storeblk,
 
-    // TODO .mmap*
-    .mmap_setup_read    = NULL,
-    .remmap_blk_read    = NULL,
-    .munmap             = NULL,
+    .mmap_setup_read    = pybigfile_mmap_setup_read,
+    .remmap_blk_read    = pybigfile_remmap_blk_read,
+    .munmap             = pybigfile_munmap,
 
     //.release    =
 };
@@ -972,6 +993,7 @@ pyfile_new(PyTypeObject *type, PyObject *args, PyObject *kw)
     PyObject     *blkmmapper;
     bigfile_ops  *blkmmap_ops = NULL;
 
+    /* try to get type.blkmmapper and verify it provides IBlkMMapper interface */
     blkmmapper = PyObject_GetAttrString((PyObject*)type, "blkmmapper");
     PyErr_Clear(); /* GetAttr raises exception if there is no attribute */
     if (blkmmapper) {