wait_status
wait_status(sc, IG4_STATUS_TX_NOTFULL);
wait_status(sc, IG4_STATUS_TX_EMPTY);
error = wait_status(sc, IG4_STATUS_TX_NOTFULL);
error = wait_status(sc, IG4_STATUS_TX_NOTFULL);
error = wait_status(sc, IG4_STATUS_TX_NOTFULL);
error = wait_status(sc, IG4_STATUS_RX_NOTEMPTY);
if (wait_status(sc, IG4_STATUS_TX_NOTFULL) == 0) {
if (wait_status(sc, IG4_STATUS_RX_NOTEMPTY) == 0) {
if (WIFSIGNALED(wait_status) && WCOREDUMP(wait_status))
extern int wait_status;
if (wait_child(pid) < 0 && WIFSIGNALED(wait_status) &&
WTERMSIG(wait_status) != SIGPIPE) {
extern int wait_status;
int wait_status;
wait_status = cp->status;
return ((WIFEXITED(wait_status) && WEXITSTATUS(wait_status)) ? -1 : 0);