/Lib/test/crashers/multithreaded_close.py

http://unladen-swallow.googlecode.com/ · Python · 14 lines · 5 code · 2 blank · 7 comment · 1 complexity · 1a49637dceb456e81a36609dc7a1d34b MD5 · raw file 

    

  1. # f.close() is not thread-safe: calling it at the same time as another
    2. 

  2. # operation (or another close) on the same file, but done from another
    3. 

  3. # thread, causes crashes.  The issue is more complicated than it seems,
    4. 

  4. # witness the discussions in:
    5. 

  5. #
    6. 

  6. # http://bugs.python.org/issue595601
    7. 

  7. # http://bugs.python.org/issue815646
    8. 

  8. 

  9. import thread
    10. 

  10. 

  11. while 1:
    12. 

  12.     f = open("multithreaded_close.tmp", "w")
    13. 

  13.     thread.start_new_thread(f.close, ())
    14. 

  14.     f.close()
    15.