From ade411265d07bb132cb85c50ca3917ea38dbab75 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Thu, 25 Jul 2013 18:17:05 +0200 Subject: add flocker MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/flocker.py | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/flocker.py (limited to 'src/flocker.py') diff --git a/src/flocker.py b/src/flocker.py new file mode 100644 index 0000000..8965ee2 --- /dev/null +++ b/src/flocker.py @@ -0,0 +1,31 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +''' +featherweight – A lightweight terminal news feed reader + +Copyright © 2013 Mattias Andrée (maandree@member.fsf.org) + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . +''' +import fcntl + + +def flock(file, exclusive, nonblocking = False): + locktype = (fcntl.LOCK_EX if exclusive else fcntl.LOCK_SH) | (fcntl.LOCK_NB if nonblocking else 0) + fcntl(file.fileno(), locktype) + + +def unflock(file): + fcntl(file.fileno(), LOCK_UN) + -- cgit v1.2.3-70-g09d2