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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: FIFO
Date: Sat, 16 Sep 2017 19:07:09 +0200
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Date: 2017-09-16T19:07:09+02:00
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On 2017-09-16 18:19, Jacob Sparre Andersen wrote:
> Frank Buss <fb@frank-buss.de> writes:
> 
>> I need a FIFO with a fixed size, for buffering serial data on an
>> embedded system. The FIFO will be filled in an interrupt and read from
>> the main function.
> 
> Maybe something like a bounded, synchronised queue
> (http://www.ada-auth.org/standards/rm12_w_tc1/html/RM-A-18-29.html)?

Interrupt handler is a protected procedure. So, it is probably a 
bounded-error to use the queue from here (ARM 9.5.1/11).

I don't see anything wrong with ring buffer, provided read/write indices 
are declared atomic and there is only one reader.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de