static UVC_READ_CB(read_cb)
{
UVC_READ_CB_VARS()
my_tcp_t *mt = (my_tcp_t *)stream;
my_sockdata_t *sock = PTR_FROM_FIELD(my_sockdata_t, mt, tcp);
my_iops_t *io = (my_iops_t *)sock->base.parent;
lcb_ioC_read2_callback callback = CbREQ(mt);
if (nread == 0) {
/* we have a fixed IOV between requests, so just retry again */
return;
}
/**
* XXX:
* For multi-IOV support, we would require a counter to determine if this
* EAGAIN is spurious (i.e. no previous data in buffer), or actual. In
* the case of the former, we'd retry -- but in the latter it is a signal
* that there is no more pending data within the socket buffer AND we have
* outstanding data to deliver back to the caller.
*/
SOCK_DECR_PENDING(sock, read);
uv_read_stop(stream);
CbREQ(mt) = NULL;
if (nread < 0) {
set_last_error(io, uvc_last_errno(io->loop, nread));
if (uvc_is_eof(io->loop, nread)) {
nread = 0;
}
}
callback(&sock->base, nread, sock->rdarg);
decref_sock(sock);
(void)buf;
}
static UVC_READ_CB(read_cb)
{
UVC_READ_CB_VARS()
my_tcp_t *mt = (my_tcp_t *)stream;
my_sockdata_t *sock = PTR_FROM_FIELD(my_sockdata_t, mt, tcp);
lcb_io_read_cb callback = CbREQ(mt);
/**
* XXX:
* For multi-IOV support, we would require a counter to determine if this
* EAGAIN is spurious (i.e. no previous data in buffer), or actual. In
* the case of the former, we'd retry -- but in the latter it is a signal
* that there is no more pending data within the socket buffer AND we have
* outstanding data to deliver back to the caller.
*/
if (nread == 0) {
sock->cur_iov--;
return;
}
SOCK_DECR_PENDING(sock, read);
uv_read_stop(stream);
CbREQ(mt) = NULL;
if (callback) {
callback(&sock->base, nread);
#ifdef DEBUG
} else {
printf("No callback specified!!\n");
#endif
}
decref_sock(sock);
(void)buf;
}
