Re: [ECOS] fcntl error

["aditya veer singh" <adityav at cdotd dot ernet dot in>]

On Fri, 12 May 2006 14:06:10 +0200, Andrew Lunn wrote
> On Fri, May 12, 2006 at 05:56:38PM +0630, aditya veer singh wrote:
> > 
> > 
> > When I try to set a file descriptor as non blocking using system call:
> > fcntl(fd, F_SETFL, O_NONBLOCK) it returns an error during call of FILEIO_RETURN.
> > fd provided for the function is a valid one.
> > 
> > Can someone provide me with few pointers as what can be possibly wrong with the
above call?
> 
> The quickest way to understand this is simply single step the function
> call and find out where the error occurs.
> 
> Use the source since you have it.
> 
>     Andrew

What I understand from the code of fcntl is that 
there is no case written for F_SETFL,
only case which is handled is F_DUPFD.
Therefore it returns a value of ENOTSUP.

Can command F_SETFL with O_NONBLOCK be used in eCos or is it a limitation? 
What needs to be done support it?
Is there any other way to get the same result as from fcntl(fd, F_SETFL, O_NONBLOCK) by
using some other functions?

Aditya






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