On Sat, 2011-04-16 at 22:40 +0400, Konstantin Khlebnikov wrote:
> It might be better to add an helper function, something like this:
>
> static inline void shift_iovec(const struct iovec **iov, int *iovcnt,
> size_t nr, ssize_t *total, off_t *offset)
> {
> while (nr >= (*iov)->iov_len) {
> nr -= (*iov)->iov_len;
> *total += (*iov)->iov_len;
> *offset += (*iov)->iov_len;
> *iovcnt--;
> *iov++;
> }
> }
>
> ssize_t pwritev_in_full(int fd, const struct iovec *iov, int iovcnt, off_t offset)
> {
> ssize_t nr, total = 0;
>
> while (iovcnt) {
> nr = xpwritev(fd, iov, iovcnt, offset);
> if (nr < 0)
> return -1;
> if (nr == 0) {
> errno = ENOSPC;
> return -1;
> }
> shift_iovec(&iov, &iovcnt, nr, &total, &offset);
> }
>
> return total;
> }
Yup, Good idea - Let's do that.
Thanks!
--
Sasha.
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