All files from this thread

File Name	File Size		Posted by	Date
patch.short.write	3.9 KB	open | download	Igor Sysoev	09/25/2009	Read message
patch.short.write1	4.7 KB	open | download	Igor Sysoev	09/25/2009	Read message

On Fri, Sep 25, 2009 at 09:37:37AM +0400, Igor Sysoev wrote:

> On Thu, Sep 24, 2009 at 10:34:38PM +0200, Alejandro Mart??nez wrote:
>
> > > pwrite() on file system should write all data at once (at least I see it
> > > for the first time). What file system do you use ?
> >
> >
> > Return Value
> > value pwrite() was successful. The value returned is the number of
> > bytes actually written. This number is less than or equal to nbyte.
> > -1 pwrite() was not successful. The errno global variable is set to
> > indicate the error.
> >
> > I don't see anywhere that the data should be written all at once. If it
> > was like that, then why whould it return the bytes written?
>
> The partial or short write/pwrite/writev()s are usual for sockets, pipes,
> etc. However, they are not so usual for disk files and may be caused
> by some limits: rlimits, qoutes, or free space. I think that retry
> will not be successful, but will return errno explainig the cause.

Could you try the attached patch. It retries short write.


--
Igor Sysoev
http://sysoev.ru/en/