From 80cfb889c3c0a38ffe98bd789fd03ac9d8752087 Mon Sep 17 00:00:00 2001
From: Yichao Yu <yyc1992@gmail.com>
Date: Fri, 20 Jun 2014 14:28:20 +0800
Subject: [PATCH] update doc of python callbacks
---
pyopencl/_cffi.py | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/pyopencl/_cffi.py b/pyopencl/_cffi.py
index 60cb2e69..47c0318e 100644
--- a/pyopencl/_cffi.py
+++ b/pyopencl/_cffi.py
@@ -187,10 +187,9 @@ def _py_deref(handle):
except:
pass
-# TODO:
-# Not sure if cffi always return the same address for the same object
-# Unless it is, this function might return a different pointer from its input
-# and should only be called once.
+# return a new reference of the object pointed to by the handle.
+# The return value might be different with the input (on PyPy).
+# _py_deref should be called (once) when the object is not needed anymore.
@_ffi.callback('void*(void*)')
def _py_ref(handle):
obj = _ffi.from_handle(handle)
--
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