def foreach(self, proc, op):
"""Process each record atomically of a B+ tree database
object."""
def proc_wraper(c_key, c_key_len, c_value, c_value_len, op):
key = util.deserialize(ctypes.cast(c_key, ctypes.c_void_p),
c_key_len, str)
value = util.deserialize(ctypes.cast(c_value, ctypes.c_void_p),
c_value_len, str)
return proc(key, value, ctypes.cast(op, ctypes.c_char_p).value)
result = tc.bdb_foreach(self.db, tc.TCITER(proc_wraper), op)
if not result:
raise tc.TCException(tc.bdb_errmsg(tc.bdb_ecode(self.db)))
return result
def foreach(self, proc, op, key_type=None, value_type=None):
"""Process each record atomically of an abstract database
object."""
def proc_wraper(c_key, c_key_len, c_value, c_value_len, op):
key = util.deserialize(ctypes.cast(c_key, ctypes.c_void_p),
c_key_len, key_type)
value = util.deserialize(ctypes.cast(c_value, ctypes.c_void_p),
c_value_len, value_type)
return proc(key, value, ctypes.cast(op, ctypes.c_char_p).value)
result = tc.adb_foreach(self.db, tc.TCITER(proc_wraper), op)
if not result:
self._raise('Error processing each record atomically of an ' \
'abstract database object.')
return result