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Provide wrapper for eventfd #85173

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tiran opened this issue Jun 17, 2020 · 2 comments
Closed

Provide wrapper for eventfd #85173

tiran opened this issue Jun 17, 2020 · 2 comments
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3.10 extension-modules stdlib type-feature

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@tiran
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@tiran tiran commented Jun 17, 2020

BPO 41001
Nosy @tiran
PRs
  • #20930
  • Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
    closed_at = <Date 2020-11-13.18:49:17.968>
    created_at = <Date 2020-06-17.10:22:48.334>
    labels = ['extension-modules', 'type-feature', 'library', '3.10']
    title = 'Provide wrapper for eventfd'
    updated_at = <Date 2021-08-07.04:51:45.767>
    user = 'https://github.com/tiran'

    bugs.python.org fields:

    activity = <Date 2021-08-07.04:51:45.767>
    actor = '4-launchpad-kalvdans-no-ip-org'
    assignee = 'none'
    closed = True
    closed_date = <Date 2020-11-13.18:49:17.968>
    closer = 'christian.heimes'
    components = ['Extension Modules', 'Library (Lib)']
    creation = <Date 2020-06-17.10:22:48.334>
    creator = 'christian.heimes'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 41001
    keywords = ['patch']
    message_count = 2.0
    messages = ['371727', '380922']
    nosy_count = 2.0
    nosy_names = ['christian.heimes', '4-launchpad-kalvdans-no-ip-org']
    pr_nums = ['20930']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'enhancement'
    url = 'https://bugs.python.org/issue41001'
    versions = ['Python 3.10']

    @tiran
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    @tiran tiran commented Jun 17, 2020

    eventfd is a Linux syscall that returns a file descriptor for event/notify systems. I propse to add a simple eventfd(initval, flags) function that is a wrapper around glibc's eventfd abstraction layer. High level notify and semaphores can then be implemented in pure Python.

    See https://man7.org/linux/man-pages/man2/eventfd.2.html for more details

    See https://bugs.python.org/issue40485 for a use case.

    @tiran tiran added 3.10 extension-modules stdlib type-feature labels Jun 17, 2020
    @tiran
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    @tiran tiran commented Nov 13, 2020

    New changeset cd9fed6 by Christian Heimes in branch 'master':
    bpo-41001: Add os.eventfd() (bpo-20930)
    cd9fed6

    @tiran tiran closed this as completed Nov 13, 2020
    @tiran tiran closed this as completed Nov 13, 2020
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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