[New-bugs-announce] [issue33441] Expose the sigset_t converter via private API

[Serhiy Storchaka]

New submission from Serhiy Storchaka <storchaka+cpython at gmail.com>:

posix_spawn() (see issue20104) needs the converter to sigset_t defined in signalmodule.c. Since the code is not trivial, it is better to share it instead of duplicate. The proposed PR:

* Exposes the sigset_t converter via private API _Py_Sigset_Converter(). The implementation is moved to posixmodule.c.

* Uses Argument Clinic for parsing sigset_t in signalmodule.c. In particularly it causes that the first argument of signal.sigtimedwait() will be parsed before the second one.

* Make the converter always raising ValueError for signal numbers out of range 1..NSIG. OverflowError was raised before for integers out of the platform depending C long range.

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messages: 316267
nosy: pablogsal, pitrou, serhiy.storchaka
priority: normal
severity: normal
status: open
title: Expose the sigset_t converter via private API
type: enhancement
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33441>
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