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Previously, test_runner sometimes fails because the _node_has_started() poller fires after the portnum file has been opened, but before it has actually been filled, allowing the test process to observe an empty file, which flunks the test. This adds a new fileutil.write_atomically() function (using the usual write-to-.tmp-then-rename approach), and uses it for both node.url and client.port . These files are written a bit before the node is really up and running, but they're late enough for test_runner's purposes, which is to know when it's safe to read client.port and use 'tahoe restart' (and therefore SIGINT) to restart the node. The current node/client code doesn't offer any better "are you really done with startup" indicator.. the ideal approach would be to either watch the logfile, or connect to its flogport, but both are a hassle. Changing the node to write out a new "all done" file would be intrusive for regular operations.
========== Tahoe-LAFS ========== Tahoe-LAFS is a Free Software/Open Source decentralized data store. It distributes your filesystem across multiple servers, and even if some of the servers fail or are taken over by an attacker, the entire filesystem continues to work correctly and to preserve your privacy and security. To get started please see `quickstart.rst`_ in the docs directory. LICENCE ======= Copyright 2006-2012 The Tahoe-LAFS Software Foundation You may use this package under the GNU General Public License, version 2 or, at your option, any later version. You may use this package under the Transitive Grace Period Public Licence, version 1.0, or at your option, any later version. (You may choose to use this package under the terms of either licence, at your option.) See the file `COPYING.GPL`_ for the terms of the GNU General Public License, version 2. See the file `COPYING.TGPPL.rst`_ for the terms of the Transitive Grace Period Public Licence, version 1.0. See `TGPPL.PDF`_ for why the TGPPL exists, graphically illustrated on three slides. .. _quickstart.rst: https://tahoe-lafs.org/source/tahoe-lafs/trunk/docs/quickstart.rst .. _COPYING.GPL: https://tahoe-lafs.org/trac/tahoe-lafs/browser/COPYING.GPL .. _COPYING.TGPPL.rst: https://tahoe-lafs.org/trac/tahoe-lafs/browser/COPYING.TGPPL.rst .. _TGPPL.PDF: https://tahoe-lafs.org/~zooko/tgppl.pdf