static ssize_t
_gnutls_writev (gnutls_session_t session, const giovec_t * giovec,
int giovec_cnt)
{
int i;
gnutls_transport_ptr_t fd = session->internals.transport_send_ptr;
reset_errno (session);
if (session->internals.push_func != NULL)
i = _gnutls_writev_emu (session, fd, giovec, giovec_cnt);
else
i = session->internals.vec_push_func (fd, giovec, giovec_cnt);
if (i == -1)
{
int err = get_errno (session);
_gnutls_debug_log ("errno: %d\n", err);
if (err == EAGAIN)
return GNUTLS_E_AGAIN;
else if (err == EINTR)
return GNUTLS_E_INTERRUPTED;
else
{
gnutls_assert ();
return GNUTLS_E_PUSH_ERROR;
}
}
return i;
}
/* @total: The sum of the data in giovec
*/
static ssize_t
_gnutls_writev(gnutls_session_t session, const giovec_t * giovec,
unsigned giovec_cnt, unsigned total)
{
int i;
bool is_dtls = IS_DTLS(session);
unsigned no_writev = 0;
gnutls_transport_ptr_t fd = session->internals.transport_send_ptr;
reset_errno(session);
if (session->internals.vec_push_func != NULL) {
if (is_dtls && giovec_cnt > 1) {
if (total > session->internals.dtls.mtu) {
no_writev = 1;
}
}
if (no_writev == 0) {
i = session->internals.vec_push_func(fd, giovec, giovec_cnt);
} else {
i = _gnutls_writev_emu(session, fd, giovec, giovec_cnt, 1);
}
} else if (session->internals.push_func != NULL) {
i = _gnutls_writev_emu(session, fd, giovec, giovec_cnt, 0);
} else
return gnutls_assert_val(GNUTLS_E_PUSH_ERROR);
if (i == -1) {
int err = get_errno(session);
_gnutls_debug_log("WRITE: %d returned from %p, errno: %d\n",
i, fd, err);
return errno_to_gerr(err, is_dtls);
}
return i;
}
