bpo-19764: Implemented support for subprocess.Popen(close_fds=True) on Windows (#1218)
Even though Python marks any handles it opens as non-inheritable there
is still a race when using `subprocess.Popen` since creating a process
with redirected stdio requires temporarily creating inheritable handles.
By implementing support for `subprocess.Popen(close_fds=True)` we fix
this race.
In order to implement this we use PROC_THREAD_ATTRIBUTE_HANDLE_LIST
which is available since Windows Vista. Which allows to pass an explicit
list of handles to inherit when creating a process.
This commit also adds `STARTUPINFO.lpAttributeList["handle_list"]`
which can be used to control PROC_THREAD_ATTRIBUTE_HANDLE_LIST
directly.
diff --git a/Misc/ACKS b/Misc/ACKS
index 8303ce8..e534389 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -466,6 +466,7 @@
Vincent Fiack
Anastasia Filatova
Tomer Filiba
+Segev Finer
Jeffrey Finkelstein
Russell Finn
Dan Finnie