Skip to content

gh-116738: Inline append for local PyList #135196

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from

Conversation

yoney
Copy link
Contributor

@yoney yoney commented Jun 6, 2025

Append items to the local list in a loop without a lock.

cc: @mpage @colesbury

@yoney yoney marked this pull request as ready for review June 6, 2025 00:22
PyObject *v = mkgrent(module, p);
if (v == NULL || PyList_Append(d, v) != 0) {
if (v == NULL
|| _PyList_AppendTakeRef((PyListObject *)d, Py_NewRef(v)) != 0)
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Let's add an assertion for _PyObject_IsUniquelyReferenced or Py_REFCNT() == 1.

@mpage
Copy link
Contributor

mpage commented Jun 6, 2025

Can you add a sentence or two about the motivation for this change (performance?) to the PR description?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Development

Successfully merging this pull request may close these issues.

3 participants
pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy