Re: Double-buffering read/write to files

[Menneteau <fmteau at Club-Internet dot fr>]

Theodore H. Smith wrote:
> On 11 Dec 2006, at 20:26, Menneteau wrote:
>
> Thanks Mennetau, nice answer.
>
> One more though. What is the difference between fopen and open?
>
> Why is there an fopen call when open seems to do it all, and even 
> better? Is fopen better buffered, or what?
fopen is a higher level call that gives you access to higher level calls
such as fgets/fgetws (get string/wstrinf from afile) that you don"t get 
with read.
> Anyhow, for my case, I don't want any buffering.
>
> Do you have any idea how I can ask the OS what is it's preferred file 
> I/O read/write size?
perhaps with sysctl. For example, you can get the software page size and 
any I/O operation is a multiple of that value

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