Re: Problem with FIFO reads from multiple processes, not sure if bug or normal behavior

Miquel van Smoorenburg (miquels@cistron.nl)
10 Nov 1998 13:06:09 +0100

In article <cistron.007401be0c60$935b9900$04c809c0@Fake.Domain.com>,
Anthony Barbachan <barbacha@Hinako.AMBusiness.com> wrote:
>I am writing a program the uses FIFOs to receive commands from multiple
>separate processes. After one process is finished sending data through the
>FIFO and closes it, the select call always returns immediately after being
>called, weather data is available or not.

The read() in the listening process returns 0 bytes so you know EOF
was reached (the only writer to the pipe has gone). Normally you
close() the pipe and exit(), or re-open() it.

Alternatively open the FIFO in O_RDWR mode in the listening process,
so that there always is one writer (the process itself) and you will
never reach EOF

Mike.

-- 
Indifference will certainly be the downfall of mankind, but who cares?


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