ASYNC_WOPEN
async->async_flags |= ASYNC_WOPEN;
async->async_flags &= ~ASYNC_WOPEN;
async->async_flags &= ~ASYNC_WOPEN;
(async->async_flags & ASYNC_WOPEN)) {
async->async_ttycommon.t_cflag & ASYNC_WOPEN);
if ((async->async_flags & (ASYNC_WOPEN|ASYNC_ISOPEN)) == 0)
(async->async_flags & (ASYNC_ISOPEN|ASYNC_WOPEN)) == 0) {
async->async_flags |= ASYNC_WOPEN;
async->async_flags &= ~ASYNC_WOPEN;
async->async_flags &= ~ASYNC_WOPEN;
(async->async_flags & ASYNC_WOPEN))) {
if ((async->async_flags & (ASYNC_WOPEN|ASYNC_ISOPEN)) == 0) {
!(async->async_flags & (ASYNC_ISOPEN|ASYNC_WOPEN))) {