bpo-46696: Add socket.SO_INCOMING_CPU constant (#31237)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index 3b1912cff88a41ae583f91ae841049c2c296c317..ee1aee5278b3be39e952e797ead70fb606cd2a67 100755 (executable)
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -575,6 +575,15 @@ Constants
 
    .. availability:: FreeBSD.
 
+.. data:: SO_INCOMING_CPU
+
+   Constant to optimize CPU locality, to be used in conjunction with
+   :data:`SO_REUSEPORT`.
+
+  .. versionadded:: 3.11
+
+  .. availability:: Linux >= 3.9
+
 Functions
 ^^^^^^^^^
 

diff --git a/Misc/NEWS.d/next/Library/2022-02-09-21-40-02.bpo-46696.nPXRno.rst b/Misc/NEWS.d/next/Library/2022-02-09-21-40-02.bpo-46696.nPXRno.rst
new file mode 100644 (file)
index 0000000..04c4188
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-02-09-21-40-02.bpo-46696.nPXRno.rst
@@ -0,0 +1 @@
+Add ``SO_INCOMING_CPU`` constant to :mod:`socket`.

diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 9ecabaf973074477b5ba9d7eb788c9f736a09a7e..c650b25c095090622bce32bf550c6b9972c06fde 100644 (file)
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -7505,6 +7505,9 @@ PyInit__socket(void)
 #ifdef SO_EXCLUSIVEADDRUSE
     PyModule_AddIntMacro(m, SO_EXCLUSIVEADDRUSE);
 #endif
+#ifdef SO_INCOMING_CPU
+    PyModule_AddIntMacro(m, SO_INCOMING_CPU);
+#endif
 
 #ifdef  SO_KEEPALIVE
     PyModule_AddIntMacro(m, SO_KEEPALIVE);