Re: [PATCH] mkswap: when writing the signature page, handle EINTR returns.

["James Youngman" <jay@xxxxxxx>]

On Mon, Apr 14, 2008 at 11:41 PM, Karel Zak <kzak@xxxxxxxxxx> wrote:
> +write_all(int fd, const void *buf, size_t count) {
>  +       while(count) {
>  +               ssize_t tmp = write(fd, buf, count);
>  +
>  +               if (tmp > 0) {
>  +                       count -= tmp;
>  +                       if (count)
>  +                               buf += tmp;
>
> +               } else if (errno != EINTR && errno != EAGAIN)
>  +                       return -1;
>  +       }
>  +       return 0;

You may want to set errno to 0 immediately before the write call.
There is also a suitable function in gnulib with a similar purpose.
I think it's called something like safe_write().

James.
--
To unsubscribe from this list: send the line "unsubscribe util-linux-ng" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html