python: use wrapped notmuch_*_t types instead of raw pointers

Now that types are checked correctly, we also need to make sure that all the
arguments actually are instances of these types. Otherwise the function calls
will fail and raise an exception similar to this one:
   ctypes.ArgumentError: argument 3: <type 'exceptions.TypeError'>: expected
   LP_LP_NotmuchMessageS instance instead of pointer to c_void_p

diff --git a/bindings/python/notmuch/database.py b/bindings/python/notmuch/database.py
index 471adaa53e1ac3e787ccfcc36d9ea0e5c53e1daf..5b1b00bd6f2df42124253ccd688f14340318375e 100644 (file)
--- a/bindings/python/notmuch/database.py
+++ b/bindings/python/notmuch/database.py
@@ -79,6 +79,7 @@ class Database(object):
     _open = nmlib.notmuch_database_open
     _open.argtypes = [c_char_p, c_uint]
     _open.restype = NotmuchDatabaseP
+    #_open.restype = c_void_p
 
     """notmuch_database_upgrade"""
     _upgrade = nmlib.notmuch_database_upgrade
@@ -385,7 +386,7 @@ class Database(object):
                       be added.
         """
         self._assert_db_is_initialized()
-        msg_p = c_void_p()
+        msg_p = NotmuchMessageP()
         status = self._add_message(self._db, _str(filename), byref(msg_p))
 
         if not status in [STATUS.SUCCESS, STATUS.DUPLICATE_MESSAGE_ID]:
@@ -453,7 +454,7 @@ class Database(object):
                     the database was not intitialized.
         """
         self._assert_db_is_initialized()
-        msg_p = c_void_p()
+        msg_p = NotmuchMessageP()
         status = Database._find_message(self._db, _str(msgid), byref(msg_p))
         if status != STATUS.SUCCESS:
             raise NotmuchError(status)
@@ -487,7 +488,7 @@ class Database(object):
 
         *Added in notmuch 0.9*"""
         self._assert_db_is_initialized()
-        msg_p = c_void_p()
+        msg_p = NotmuchMessageP()
         status = Database._find_message_by_filename(self._db, _str(filename),
                                                     byref(msg_p))
         if status != STATUS.SUCCESS: