Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 1 | # This is a helper module for test_threaded_import. The test imports this |
| 2 | # module, and this module tries to run various Python library functions in |
| 3 | # their own thread, as a side effect of being imported. If the spawned |
| 4 | # thread doesn't complete in TIMEOUT seconds, an "appeared to hang" message |
| 5 | # is appended to the module-global `errors` list. That list remains empty |
| 6 | # if (and only if) all functions tested complete. |
| 7 | |
| 8 | TIMEOUT = 10 |
| 9 | |
| 10 | import threading |
| 11 | |
| 12 | import tempfile |
| 13 | import os.path |
| 14 | |
| 15 | errors = [] |
| 16 | |
| 17 | # This class merely runs a function in its own thread T. The thread importing |
| 18 | # this module holds the import lock, so if the function called by T tries |
| 19 | # to do its own imports it will block waiting for this module's import |
| 20 | # to complete. |
| 21 | class Worker(threading.Thread): |
| 22 | def __init__(self, function, args): |
| 23 | threading.Thread.__init__(self) |
| 24 | self.function = function |
| 25 | self.args = args |
| 26 | |
| 27 | def run(self): |
| 28 | self.function(*self.args) |
| 29 | |
| 30 | for name, func, args in [ |
| 31 | # Bug 147376: TemporaryFile hung on Windows, starting in Python 2.4. |
| 32 | ("tempfile.TemporaryFile", tempfile.TemporaryFile, ()), |
| 33 | |
| 34 | # The real cause for bug 147376: ntpath.abspath() caused the hang. |
| 35 | ("os.path.abspath", os.path.abspath, ('.',)), |
| 36 | ]: |
| 37 | |
| 38 | t = Worker(func, args) |
| 39 | t.start() |
| 40 | t.join(TIMEOUT) |
| 41 | if t.isAlive(): |
| 42 | errors.append("%s appeared to hang" % name) |