bsd/kern/sysv_sem.c

130 struct semid_kernel	*sema = NULL;		/* semaphore id pool */
321  * Expand the sema array to the given capacity.  If the expansion fails
346 	printf("growing sema[] from %d to %d\n", seminfo.semmni, newSize);
362 		newSema[i] = sema[i];
371 		if (sema[i].u.sem_perm.mode & SEM_ALLOC)
372 			wakeup((caddr_t)&sema[i]);
389 	if (sema)
390 		FREE(sema, M_SYSVSEM);
392 	sema = newSema;
446 		if (sema[i].u.sem_perm.mode & SEM_ALLOC)  /* ID in use */
447 			sema[i].u.sem_base += (new_sem_pool - sem_pool);
708 	semakptr = &sema[semid];
734 			if ((sema[i].u.sem_perm.mode & SEM_ALLOC) &&
735 			    sema[i].u.sem_base > semakptr->u.sem_base)
736 				sema[i].u.sem_base -= semakptr->u.sem_nsems;
920 			if ((sema[semid].u.sem_perm.mode & SEM_ALLOC) &&
921 			    sema[semid].u.sem_perm._key == key)
928 			if ((eval = ipcperm(cred, &sema[semid].u.sem_perm,
931 			if (nsems < 0 || sema[semid].u.sem_nsems < nsems) {
946 			eval = mac_sysvsem_check_semget(cred, &sema[semid]);
980 			if ((sema[semid].u.sem_perm.mode & SEM_ALLOC) == 0)
990 				printf("failed to grow sema array\n");
999 		sema[semid].u.sem_perm._key = key;
1000 		sema[semid].u.sem_perm.cuid = kauth_cred_getuid(cred);
1001 		sema[semid].u.sem_perm.uid = kauth_cred_getuid(cred);
1002 		sema[semid].u.sem_perm.cgid = kauth_cred_getgid(cred);
1003 		sema[semid].u.sem_perm.gid = kauth_cred_getgid(cred);
1004 		sema[semid].u.sem_perm.mode = (semflg & 0777) | SEM_ALLOC;
1005 		sema[semid].u.sem_perm._seq =
1006 		    (sema[semid].u.sem_perm._seq + 1) & 0x7fff;
1007 		sema[semid].u.sem_nsems = nsems;
1008 		sema[semid].u.sem_otime = 0;
1009 		sema[semid].u.sem_ctime = sysv_semtime();
1010 		sema[semid].u.sem_base = &sem_pool[semtot];
1012 		bzero(sema[semid].u.sem_base,
1013 		    sizeof(sema[semid].u.sem_base[0])*nsems);
1015 		mac_sysvsem_label_associate(cred, &sema[semid]);
1018 		printf("sembase = 0x%x, next = 0x%x\n", sema[semid].u.sem_base,
1030 	*retval = IXSEQ_TO_IPCID(semid, sema[semid].u.sem_perm);
1070 	semakptr = &sema[semid];
1247 	 	semakptr = &sema[semid];   /* sema may have been reallocated */
1431 			semakptr = &sema[semid];
1527 		(sema == NULL) &&
1622 			if (sema[cursor].u.sem_perm.mode & SEM_ALLOC)
1631 		semid_dsp = &sema[cursor].u;	/* default: 64 bit */