| /* |
| * krishna balasubramanian 1993 |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <sys/shm.h> |
| #include <sys/msg.h> |
| #include <sys/sem.h> |
| |
| int main(int argc, char **argv) |
| { |
| int id; |
| union semun arg; |
| |
| arg.val = 0; |
| |
| if (argc != 3 || strlen(argv[1]) < 3) { |
| printf ("usage: %s [shm | msg | sem] id\n", argv[0]); |
| exit (1); |
| } |
| id = atoi (argv[2]); |
| switch (argv[1][1]) { |
| case 'h': |
| if (!shmctl (id, IPC_RMID, NULL)) |
| break; |
| perror ("shmctl "); |
| exit (1); |
| |
| case 'e': |
| if (!semctl (id, 0, IPC_RMID, arg)) |
| break; |
| perror ("semctl "); |
| exit (1); |
| |
| case 's': |
| if (!msgctl (id, IPC_RMID, NULL)) |
| break; |
| perror ("msgctl "); |
| exit (1); |
| |
| default: |
| printf ("usage: %s [-shm | -msg | -sem] id\n", argv[0]); |
| exit (1); |
| } |
| printf ("resource deleted\n"); |
| return 0; |
| } |
| |