Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 23 by tttuan: Input Error when locking && timeout=-1
http://code.google.com/p/django-mailer/issues/detail?id=23
What steps will reproduce the problem?
1. Create a send_mail.lock in project dir to test
2. Run mailer via command line: python manage.py send_mail
What is the expected output? What do you see instead?
Expected: inform locking and quit immediately
Actually:
............
File
"/user/hcm/tttran/bin/pinax-0.5.1/apps/external_apps/mailer/engine.py",
line 47, in send_all
lock.acquire(LOCK_WAIT_TIMEOUT)
File
"/user/hcm/tttran/bin/pinax-0.5.1/apps/external_apps/mailer/lockfile.py",
line 266, in acquire
time.sleep(timeout is not None and timeout/10 or 0.1)
IOError: [Errno 22] Invalid argument
What version of the product are you using? On what operating system?
Version from Pinax 0.5.1
$ uname -a
Linux myserver 2.4.21-47.ELsmp #1 SMP Wed Jul 5 20:30:30 EDT 2006 x86_64
x86_64 x86_64 GNU/Linux
Reason:
- In LinkFileLock.acquire:
260 if timeout is not None and time.time() >
end_time:
261 os.unlink(self.unique_name)
262 if timeout > 0:
263 raise LockTimeout
264 else:
265 raise AlreadyLocked
266 time.sleep(timeout is not None and timeout/10
or 0.1)
If it runs too fast then the time.time() = end_time and the time.sleep will
be executed. The value passed to time.sleep is negative, so it will raise
IOError
acquiring lock...
timeout= -1
time()= 1237789598.54
end_time= 1237789598.54
Traceback (most recent call last):
File "manage.py", line 26, in <module>
execute_manager(settings)
Solution:
Use wait variable like in MkdirFileLock.acquire
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