| typedef unsigned short ushort; |
| struct sembuf { |
| ushort sem_num; |
| short sem_op; |
| short sem_flg; |
| }; |
| union semun { |
| int val; |
| struct semid_ds *buf; |
| ushort *array; |
| struct seminfo *__buf; |
| void *__pad; |
| }; |
| static union semun semctl_arg; |
| static int semid; |
| static void up(int sem){ |
| struct sembuf sb; |
| sb.sem_num = (unsigned short) sem; |
| sb.sem_op = 1; |
| sb.sem_flg = 0x1000 ; |
| if(semop(semid, &sb, 1) == -1) error("up failure"); |
| if(semctl(semid, sb.sem_num, 12 , semctl_arg) == 0) |
| printf("%s had processes sleeping on it!\n", |
| ({ "MUTEX ", "BARB_SEM 1", "BARB_SEM 2", "CUST_SEM 1", |
| "CUST_SEM 2", "WAIT_SEM 1", "WAIT_SEM 2", "WAIT_SEM 3", |
| "WAIT_SEM 4"} /* { dg-error "parse error" } */ |
| [( sb.sem_num )]) ); |
| } |
