From 81a85f18b6393001df42f20b58e3435a74ed0fe2 Mon Sep 17 00:00:00 2001
From: Martin Fischer <martin@push-f.com>
Date: Mon, 28 Feb 2022 06:02:15 +0100
Subject: [PATCH] stdlib: Add os.pidfd_open(pid)

---
 stdlib/os/__init__.pyi                    | 3 +++
 stdlib/posix.pyi                          | 3 ++-
 tests/stubtest_allowlists/linux-py310.txt | 2 --
 tests/stubtest_allowlists/linux-py39.txt  | 2 --
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/stdlib/os/__init__.pyi b/stdlib/os/__init__.pyi
index 8c284c8d1..3f8b43849 100644
--- a/stdlib/os/__init__.pyi
+++ b/stdlib/os/__init__.pyi
@@ -1024,3 +1024,6 @@ if sys.version_info >= (3, 8):
 
 if sys.version_info >= (3, 9):
     def waitstatus_to_exitcode(status: int) -> int: ...
+
+    if sys.platform == "linux":
+        def pidfd_open(pid: int, flags: int = ...) -> int: ...
diff --git a/stdlib/posix.pyi b/stdlib/posix.pyi
index 9f658039b..b0b3fc4d2 100644
--- a/stdlib/posix.pyi
+++ b/stdlib/posix.pyi
@@ -273,7 +273,8 @@ if sys.platform != "win32":
         from os import CLD_KILLED as CLD_KILLED, CLD_STOPPED as CLD_STOPPED, waitstatus_to_exitcode as waitstatus_to_exitcode
 
         if sys.platform == "linux":
-            from os import P_PIDFD as P_PIDFD
+            from os import P_PIDFD as P_PIDFD, pidfd_open as pidfd_open
+
     if sys.version_info >= (3, 8):
         from os import (
             POSIX_SPAWN_CLOSE as POSIX_SPAWN_CLOSE,
diff --git a/tests/stubtest_allowlists/linux-py310.txt b/tests/stubtest_allowlists/linux-py310.txt
index 995d80026..38ab16dc4 100644
--- a/tests/stubtest_allowlists/linux-py310.txt
+++ b/tests/stubtest_allowlists/linux-py310.txt
@@ -29,7 +29,6 @@ os.copy_file_range
 os.eventfd
 os.eventfd_read
 os.eventfd_write
-os.pidfd_open
 os.splice
 posix.EFD_[A-Z]+
 posix.SPLICE_[A-Z_]+
@@ -37,5 +36,4 @@ posix.copy_file_range
 posix.eventfd
 posix.eventfd_read
 posix.eventfd_write
-posix.pidfd_open
 posix.splice
diff --git a/tests/stubtest_allowlists/linux-py39.txt b/tests/stubtest_allowlists/linux-py39.txt
index 1975288fa..eb8a71b49 100644
--- a/tests/stubtest_allowlists/linux-py39.txt
+++ b/tests/stubtest_allowlists/linux-py39.txt
@@ -3,6 +3,4 @@ select.epoll.register
 
 # Exists at runtime, but missing from stubs
 os.copy_file_range
-os.pidfd_open
 posix.copy_file_range
-posix.pidfd_open