New submission from Antoine Pitrou <pit...@free.fr>: This patch exposes a new read-only property of multiprocessing.Process objects, named "sentinel". As the doc indicates, this is a file descriptor undex Unix, and a handle under Windows. Both are suitable for flexible polling/waiting with the appropriate OS primitives. They become ready when the process has ended. Under Unix, this also replaces the repeated polling in _Popen.wait() (called from Process.join()) with a regular select() call, making it friendlier with CPU low-power states.
This is necessary for issue9205. ---------- components: Library (Lib) files: process_sentinel.patch keywords: patch messages: 135623 nosy: asksol, brian.curtin, gregory.p.smith, jnoller, neologix, pitrou priority: normal severity: normal stage: patch review status: open title: Expose a Process.sentinel property (and fix polling loop in Process.join()) type: feature request versions: Python 3.3 Added file: http://bugs.python.org/file21945/process_sentinel.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12040> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
