mirror of
https://github.com/python/cpython.git
synced 2025-10-31 21:51:50 +00:00
85 lines
2.2 KiB
Python
85 lines
2.2 KiB
Python
"""
|
|
Create and delete FILES_PER_THREAD temp files (via tempfile.TemporaryFile)
|
|
in each of NUM_THREADS threads, recording the number of successes and
|
|
failures. A failure is a bug in tempfile, and may be due to:
|
|
|
|
+ Trying to create more than one tempfile with the same name.
|
|
+ Trying to delete a tempfile that doesn't still exist.
|
|
+ Something we've never seen before.
|
|
|
|
By default, NUM_THREADS == 20 and FILES_PER_THREAD == 50. This is enough to
|
|
create about 150 failures per run under Win98SE in 2.0, and runs pretty
|
|
quickly. Guido reports needing to boost FILES_PER_THREAD to 500 before
|
|
provoking a 2.0 failure under Linux. Run the test alone to boost either
|
|
via cmdline switches:
|
|
|
|
-f FILES_PER_THREAD (int)
|
|
-t NUM_THREADS (int)
|
|
"""
|
|
|
|
NUM_THREADS = 20 # change w/ -t option
|
|
FILES_PER_THREAD = 50 # change w/ -f option
|
|
|
|
import threading
|
|
from test_support import TestFailed
|
|
import StringIO
|
|
from traceback import print_exc
|
|
|
|
startEvent = threading.Event()
|
|
|
|
import tempfile
|
|
tempfile.gettempdir() # Do this now, to avoid spurious races later
|
|
|
|
class TempFileGreedy(threading.Thread):
|
|
error_count = 0
|
|
ok_count = 0
|
|
|
|
def run(self):
|
|
self.errors = StringIO.StringIO()
|
|
startEvent.wait()
|
|
for i in range(FILES_PER_THREAD):
|
|
try:
|
|
f = tempfile.TemporaryFile("w+b")
|
|
f.close()
|
|
except:
|
|
self.error_count += 1
|
|
print_exc(file=self.errors)
|
|
else:
|
|
self.ok_count += 1
|
|
|
|
def _test():
|
|
threads = []
|
|
|
|
print "Creating"
|
|
for i in range(NUM_THREADS):
|
|
t = TempFileGreedy()
|
|
threads.append(t)
|
|
t.start()
|
|
|
|
print "Starting"
|
|
startEvent.set()
|
|
|
|
print "Reaping"
|
|
ok = errors = 0
|
|
for t in threads:
|
|
t.join()
|
|
ok += t.ok_count
|
|
errors += t.error_count
|
|
if t.error_count:
|
|
print '%s errors:\n%s' % (t.getName(), t.errors.getvalue())
|
|
|
|
msg = "Done: errors %d ok %d" % (errors, ok)
|
|
print msg
|
|
if errors:
|
|
raise TestFailed(msg)
|
|
|
|
if __name__ == "__main__":
|
|
import sys, getopt
|
|
opts, args = getopt.getopt(sys.argv[1:], "t:f:")
|
|
for o, v in opts:
|
|
if o == "-f":
|
|
FILES_PER_THREAD = int(v)
|
|
elif o == "-t":
|
|
NUM_THREADS = int(v)
|
|
|
|
_test()
|