Public bug reported:
Here is a Python script, using pygtk, which demonstrates the problem.
from gtk import main, main_quit
from gobject import threads_init, timeout_add, source_remove
import sys
def test(iterations, use_threads):
if use_threads:
threads_init()
tick = 0
while tick < iterations:
tick += 1
if (tick % 1000) == 0:
print 'Tick', tick
lasttag = timeout_add(1, main_quit)
main()
source_remove(lasttag)
if __name__ == "__main__":
if sys.argv[1:] == ['no-threads']:
threads = False
else:
threads = True
print 'Using threads:', threads
test(10000, threads)
print 'Done.'
When run on Jaunty or Intrepid, this is the output:
$ python gtkrash.py
Using threads: True
** ERROR **: Cannot create main loop pipe: Too many open files
aborting...
Aborted
$ python gtkrash.py no-threads
Using threads: False
Tick 1000
Tick 2000
Tick 3000
Tick 4000
Tick 5000
Tick 6000
Tick 7000
Tick 8000
Tick 9000
Tick 10000
Done.
$
When run on Hardy, however, the test is successful regardless of whether
threads are used.
** Affects: gtk+2.0 (Ubuntu)
Importance: Undecided
Status: New
--
gtk_main leaks a file descriptor every time the main loop is run if threads
have been initialized
https://bugs.launchpad.net/bugs/363245
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