Unix Device File Emulation

[A.T.Hofkamp]

On 2008-04-23, blaine <frikker at gmail.com> wrote:
> On Apr 23, 2:01 pm, "Martin Blume" <mbl... at freesurf.ch> wrote:
>> "blaine" schrieb

>> No,
>>   while 1:
>>       r = self.fifodev.readline()
>>       if r: print r
>>       else: time.sleep(0.1)
>> is ok (note the "if r:" clause).
>>
>> Martin
>
> Beautiful! Thanks Martin!

yes, but you have to follow the usual file handling rules, and close/re-open
the fifo after detecting EOF. You will be blocked on attempting to re-open
until there is another writing process.

while 1:
  fp = open('my_fifo', 'r')
  while 1:
     line = fp.readline()
     if line == '':
        break
     print line.rstrip()    # To prevent printing of \n in line
  fp.close()

Albert