<snip> Wow, more of a response than I expected, thanks very much for the research. While not related to the mutex, the problem did appear to be permission related. For the record, on windows XP
import sys import mmap import win32event buffer_ready = win32event.CreateEvent (None, 0, 0, "DBWIN_BUFFER_READY") data_ready = win32event.CreateEvent (None, 0, 0, "DBWIN_DATA_READY") buffer = mmap.mmap (0, 4096, "DBWIN_BUFFER", mmap.ACCESS_WRITE) win32event.SetEvent (buffer_ready) while win32event.WaitForSingleObject (data_ready, 1000) == win32event.WAIT_TIMEOUT: print "Timed out" print "Was signaled" appears to work. Write access appears to be required for the buffer (which I can read and get useful data from: print buffer.read(4) print buffer.read(4092) and no security object. I wasn't the one who figured this out, so I'm really not sure why it works...but it seems to. -- http://mail.python.org/mailman/listinfo/python-list
