pythongh-127688: Add SCHED_DEADLINE and SCHED_NORMAL constants to os module (pythonGH-127689)

Author: rruuaanng

Doc/library/os.rst

@@ -5420,10 +5420,22 @@ operating system.
    Scheduling policy for CPU-intensive processes that tries to preserve
    interactivity on the rest of the computer.
 
+.. data:: SCHED_DEADLINE
+
+   Scheduling policy for tasks with deadline constraints.
+
+   .. versionadded:: next
+
 .. data:: SCHED_IDLE
 
    Scheduling policy for extremely low priority background tasks.
 
+.. data:: SCHED_NORMAL
+
+   Alias for :data:`SCHED_OTHER`.
+
+   .. versionadded:: next
+
 .. data:: SCHED_SPORADIC
 
    Scheduling policy for sporadic server programs.

Doc/whatsnew/3.14.rst

@@ -525,6 +525,10 @@ os
   same process.
   (Contributed by Victor Stinner in :gh:`120057`.)
 
+* Add the :data:`~os.SCHED_DEADLINE` and :data:`~os.SCHED_NORMAL` constants
+  to the :mod:`os` module.
+  (Contributed by James Roy in :gh:`127688`.)
+
 
 pathlib
 -------

Misc/NEWS.d/next/Library/2024-12-06-21-03-11.gh-issue-127688.NJqtc-.rst

@@ -0,0 +1,2 @@
+Add the :data:`~os.SCHED_DEADLINE` and :data:`~os.SCHED_NORMAL` constants
+to the :mod:`os` module.

Modules/posixmodule.c

@@ -311,6 +311,10 @@ corresponding Unix manual entries for more information on calls.");
 #  include <sched.h>
 #endif
 
+#ifdef HAVE_LINUX_SCHED_H
+#  include <linux/sched.h>
+#endif
+
 #if !defined(CPU_ALLOC) && defined(HAVE_SCHED_SETAFFINITY)
 #  undef HAVE_SCHED_SETAFFINITY
 #endif
@@ -17523,9 +17527,15 @@ all_ins(PyObject *m)
 #ifdef SCHED_OTHER
     if (PyModule_AddIntMacro(m, SCHED_OTHER)) return -1;
 #endif
+#ifdef SCHED_DEADLINE
+    if (PyModule_AddIntMacro(m, SCHED_DEADLINE)) return -1;
+#endif
 #ifdef SCHED_FIFO
     if (PyModule_AddIntMacro(m, SCHED_FIFO)) return -1;
 #endif
+#ifdef SCHED_NORMAL
+    if (PyModule_AddIntMacro(m, SCHED_NORMAL)) return -1;
+#endif
 #ifdef SCHED_RR
     if (PyModule_AddIntMacro(m, SCHED_RR)) return -1;
 #endif

configure

@@ -2931,7 +2931,7 @@ AC_DEFINE([STDC_HEADERS], [1],
 AC_CHECK_HEADERS([ \
   alloca.h asm/types.h bluetooth.h conio.h direct.h dlfcn.h endian.h errno.h fcntl.h grp.h \
   io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/fs.h linux/limits.h linux/memfd.h \
-  linux/netfilter_ipv4.h linux/random.h linux/soundcard.h \
+  linux/netfilter_ipv4.h linux/random.h linux/soundcard.h linux/sched.h \
   linux/tipc.h linux/wait.h netdb.h net/ethernet.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
   sched.h setjmp.h shadow.h signal.h spawn.h stropts.h sys/audioio.h sys/bsdtty.h sys/devpoll.h \
   sys/endian.h sys/epoll.h sys/event.h sys/eventfd.h sys/file.h sys/ioctl.h sys/kern_control.h \

configure.ac

@@ -744,6 +744,9 @@
 /* Define to 1 if you have the <linux/random.h> header file. */
 #undef HAVE_LINUX_RANDOM_H
 
+/* Define to 1 if you have the <linux/sched.h> header file. */
+#undef HAVE_LINUX_SCHED_H
+
 /* Define to 1 if you have the <linux/soundcard.h> header file. */
 #undef HAVE_LINUX_SOUNDCARD_H