From 458120dd40db6b4df55a4e96b650e16798ef06a0 Mon Sep 17 00:00:00 2001 From: cinap_lenrek Date: Tue, 3 May 2011 11:25:13 +0000 Subject: add hg and python --- sys/lib/python/test/threaded_import_hangers.py | 42 ++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 sys/lib/python/test/threaded_import_hangers.py (limited to 'sys/lib/python/test/threaded_import_hangers.py') diff --git a/sys/lib/python/test/threaded_import_hangers.py b/sys/lib/python/test/threaded_import_hangers.py new file mode 100644 index 000000000..b21c52f3c --- /dev/null +++ b/sys/lib/python/test/threaded_import_hangers.py @@ -0,0 +1,42 @@ +# This is a helper module for test_threaded_import. The test imports this +# module, and this module tries to run various Python library functions in +# their own thread, as a side effect of being imported. If the spawned +# thread doesn't complete in TIMEOUT seconds, an "appeared to hang" message +# is appended to the module-global `errors` list. That list remains empty +# if (and only if) all functions tested complete. + +TIMEOUT = 10 + +import threading + +import tempfile +import os.path + +errors = [] + +# This class merely runs a function in its own thread T. The thread importing +# this module holds the import lock, so if the function called by T tries +# to do its own imports it will block waiting for this module's import +# to complete. +class Worker(threading.Thread): + def __init__(self, function, args): + threading.Thread.__init__(self) + self.function = function + self.args = args + + def run(self): + self.function(*self.args) + +for name, func, args in [ + # Bug 147376: TemporaryFile hung on Windows, starting in Python 2.4. + ("tempfile.TemporaryFile", tempfile.TemporaryFile, ()), + + # The real cause for bug 147376: ntpath.abspath() caused the hang. + ("os.path.abspath", os.path.abspath, ('.',)), + ]: + + t = Worker(func, args) + t.start() + t.join(TIMEOUT) + if t.isAlive(): + errors.append("%s appeared to hang" % name) -- cgit v1.2.3