unblock
cfunc = ddflags & C_BLOCK ? block : unblock;
cfunc = unblock;
else if (cfunc == unblock)
void unblock(void);
ATF_TP_ADD_TC(tp, unblock);
ATF_TC_WITHOUT_HEAD(unblock);
ATF_TC_BODY(unblock, tc)
unblock = 1;
unblock = 0;
if (unblock == 1)
static volatile sig_atomic_t unblock;