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 +
448 				(sema[i].u.sem_base - sem_pool);
709 	semakptr = &sema[semid];
735 			if ((sema[i].u.sem_perm.mode & SEM_ALLOC) &&
736 			    sema[i].u.sem_base > semakptr->u.sem_base)
737 				sema[i].u.sem_base -= semakptr->u.sem_nsems;
938 			if ((sema[semid].u.sem_perm.mode & SEM_ALLOC) &&
939 			    sema[semid].u.sem_perm._key == key)
946 			if ((eval = ipcperm(cred, &sema[semid].u.sem_perm,
949 			if (nsems < 0 || sema[semid].u.sem_nsems < nsems) {
964 			eval = mac_sysvsem_check_semget(cred, &sema[semid]);
998 			if ((sema[semid].u.sem_perm.mode & SEM_ALLOC) == 0)
1008 				printf("failed to grow sema array\n");
1017 		sema[semid].u.sem_perm._key = key;
1018 		sema[semid].u.sem_perm.cuid = kauth_cred_getuid(cred);
1019 		sema[semid].u.sem_perm.uid = kauth_cred_getuid(cred);
1020 		sema[semid].u.sem_perm.cgid = kauth_cred_getgid(cred);
1021 		sema[semid].u.sem_perm.gid = kauth_cred_getgid(cred);
1022 		sema[semid].u.sem_perm.mode = (semflg & 0777) | SEM_ALLOC;
1023 		sema[semid].u.sem_perm._seq =
1024 		    (sema[semid].u.sem_perm._seq + 1) & 0x7fff;
1025 		sema[semid].u.sem_nsems = nsems;
1026 		sema[semid].u.sem_otime = 0;
1027 		sema[semid].u.sem_ctime = sysv_semtime();
1028 		sema[semid].u.sem_base = &sem_pool[semtot];
1030 		bzero(sema[semid].u.sem_base,
1031 		    sizeof(sema[semid].u.sem_base[0])*nsems);
1033 		mac_sysvsem_label_associate(cred, &sema[semid]);
1036 		printf("sembase = 0x%x, next = 0x%x\n", sema[semid].u.sem_base,
1048 	*retval = IXSEQ_TO_IPCID(semid, sema[semid].u.sem_perm);
1088 	semakptr = &sema[semid];
1265 	 	semakptr = &sema[semid];   /* sema may have been reallocated */
1449 			semakptr = &sema[semid];
1545 		(sema == NULL) &&
1640 			if (sema[cursor].u.sem_perm.mode & SEM_ALLOC)
1649 		semid_dsp = &sema[cursor].u;	/* default: 64 bit */