Lines Matching defs:rptr
144 * rptr is next byte to read, == wptr means empty
147 int rptr;
916 port->rptr = 0;
1034 if (new_wptr == port->rptr) {
1185 ret = port->rptr != port->wptr;
1192 if (port->rptr != port->wptr) {
1193 ret = port->buf[port->rptr];
1194 port->rptr = (port->rptr + 1) % BUFSIZ;
1218 if (port->rptr != port->wptr)
1248 if (port->rptr != port->wptr) {
1249 ret = port->buf[port->rptr];
1250 port->rptr = (port->rptr + 1) % BUFSIZ;
1429 if (port->wptr != port->rptr)
1435 if (port->wptr != port->rptr)