Re: Double-buffering read/write to files

["Theodore H. Smith" <delete at elfdata dot com>]

On 11 Dec 2006, at 21:12, Menneteau wrote:

> 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
Thanks Mennetau. Always good to have an unix expert handy ;)


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