https://github.com/python/cpython/commit/e163fbdeda17104f3782afcae557c0211a2ba0a6 commit: e163fbdeda17104f3782afcae557c0211a2ba0a6 branch: main author: Benjamin Peterson <[email protected]> committer: benjaminp <[email protected]> date: 2025-09-18T08:13:23-07:00 summary:
fixes gh-139090: add os.RWF_DONTCACHE (#139091) files: A Misc/NEWS.d/next/Library/2025-09-17-21-52-30.gh-issue-139090.W7vbhF.rst M Doc/library/os.rst M Modules/clinic/posixmodule.c.h M Modules/posixmodule.c diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 2e04fbb6f63fd3..b7fa365166d608 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -1501,6 +1501,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo - :data:`RWF_HIPRI` - :data:`RWF_NOWAIT` + - :data:`RWF_DONTCACHE` Return the total number of bytes actually read which can be less than the total capacity of all the objects. @@ -1546,6 +1547,15 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo .. versionadded:: 3.7 +.. data:: RWF_DONTCACHE + + Use uncached buffered IO. + + .. availability:: Linux >= 6.14 + + .. versionadded:: next + + .. function:: ptsname(fd, /) Return the name of the slave pseudo-terminal device associated with the @@ -1587,6 +1597,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo - :data:`RWF_DSYNC` - :data:`RWF_SYNC` - :data:`RWF_APPEND` + - :data:`RWF_DONTCACHE` Return the total number of bytes actually written. diff --git a/Misc/NEWS.d/next/Library/2025-09-17-21-52-30.gh-issue-139090.W7vbhF.rst b/Misc/NEWS.d/next/Library/2025-09-17-21-52-30.gh-issue-139090.W7vbhF.rst new file mode 100644 index 00000000000000..129914abb10168 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2025-09-17-21-52-30.gh-issue-139090.W7vbhF.rst @@ -0,0 +1 @@ +Add :data:`os.RWF_DONTCACHE` constant for Linux 6.14+. diff --git a/Modules/clinic/posixmodule.c.h b/Modules/clinic/posixmodule.c.h index 45e7c0d6451c15..dddf98d127c15f 100644 --- a/Modules/clinic/posixmodule.c.h +++ b/Modules/clinic/posixmodule.c.h @@ -7814,6 +7814,7 @@ PyDoc_STRVAR(os_preadv__doc__, "\n" "- RWF_HIPRI\n" "- RWF_NOWAIT\n" +"- RWF_DONTCACHE\n" "\n" "Using non-zero flags requires Linux 4.6 or newer."); @@ -8555,6 +8556,7 @@ PyDoc_STRVAR(os_pwritev__doc__, "- RWF_DSYNC\n" "- RWF_SYNC\n" "- RWF_APPEND\n" +"- RWF_DONTCACHE\n" "\n" "Using non-zero flags requires Linux 4.7 or newer."); @@ -13444,4 +13446,4 @@ os__emscripten_log(PyObject *module, PyObject *const *args, Py_ssize_t nargs, Py #ifndef OS__EMSCRIPTEN_LOG_METHODDEF #define OS__EMSCRIPTEN_LOG_METHODDEF #endif /* !defined(OS__EMSCRIPTEN_LOG_METHODDEF) */ -/*[clinic end generated code: output=92662828d49f5d88 input=a9049054013a1b77]*/ +/*[clinic end generated code: output=b5b370c499174f85 input=a9049054013a1b77]*/ diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c index 62b0c35602323f..6da90dc95addce 100644 --- a/Modules/posixmodule.c +++ b/Modules/posixmodule.c @@ -11756,6 +11756,7 @@ The flags argument contains a bitwise OR of zero or more of the following flags: - RWF_HIPRI - RWF_NOWAIT +- RWF_DONTCACHE Using non-zero flags requires Linux 4.6 or newer. [clinic start generated code]*/ @@ -11763,7 +11764,7 @@ Using non-zero flags requires Linux 4.6 or newer. static Py_ssize_t os_preadv_impl(PyObject *module, int fd, PyObject *buffers, Py_off_t offset, int flags) -/*[clinic end generated code: output=26fc9c6e58e7ada5 input=c1f876866fcd9d41]*/ +/*[clinic end generated code: output=26fc9c6e58e7ada5 input=34fb3b9ca06f7ba7]*/ { Py_ssize_t cnt, n; int async_err = 0; @@ -12413,6 +12414,7 @@ The flags argument contains a bitwise OR of zero or more of the following flags: - RWF_DSYNC - RWF_SYNC - RWF_APPEND +- RWF_DONTCACHE Using non-zero flags requires Linux 4.7 or newer. [clinic start generated code]*/ @@ -12420,7 +12422,7 @@ Using non-zero flags requires Linux 4.7 or newer. static Py_ssize_t os_pwritev_impl(PyObject *module, int fd, PyObject *buffers, Py_off_t offset, int flags) -/*[clinic end generated code: output=e3dd3e9d11a6a5c7 input=99d8a21493ff76ca]*/ +/*[clinic end generated code: output=e3dd3e9d11a6a5c7 input=664a67626d485665]*/ { Py_ssize_t cnt; Py_ssize_t result; @@ -17646,6 +17648,9 @@ all_ins(PyObject *m) #ifdef RWF_NOWAIT if (PyModule_AddIntConstant(m, "RWF_NOWAIT", RWF_NOWAIT)) return -1; #endif +#ifdef RWF_DONTCACHE + if (PyModule_AddIntConstant(m, "RWF_DONTCACHE", RWF_DONTCACHE)) return -1; +#endif #ifdef RWF_APPEND if (PyModule_AddIntConstant(m, "RWF_APPEND", RWF_APPEND)) return -1; #endif _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3//lists/python-checkins.python.org Member address: [email protected]
