Re: [LAU] Simple, easy multithreaded circular buffer library for Linux?

On Fri, Oct 17, 2008 at 09:26:45PM +0200, Joern Nettingsmeier wrote:

> i see. but what about the other scenario:
> thread A reads read_ptr.
> thread B runs and increments it.
> thread A increases the old (wrong) read_ptr value by one and writes a
> wrong value.
>
> isn't that a problem here?

This can't happen. For both read_ptr and write_ptr
only *one* of the two sides will ever modify it.
That is really the basic idea behind all this.
The other side just reads it, and will never read
a value that could trigger an error.

side.

Ciao,

-- 
FA
Laboratorio di Acustica ed Elettroacustica
Parma, Italia
Lascia la spina, cogli la rosa.
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