bsd/kern/sysv_shm.c

285 shm_delete_mapping(__unused struct proc *p, struct shmmap_state *shmmap_s,
292 	segnum = IPCID_TO_IX(shmmap_s->shmid);
296 	result = mach_vm_deallocate(current_map(), shmmap_s->va, size);
300 	shmmap_s->shmid = -1;
316 	struct shmmap_state *shmmap_s;
327 	shmmap_s = (struct shmmap_state *)p->vm_shm;
328  	if (shmmap_s == NULL) {
333 	for (i = 0; i < shminfo.shmseg; i++, shmmap_s++)
334 		if (shmmap_s->shmid != -1 &&
335 		    shmmap_s->va == (mach_vm_offset_t)uap->shmaddr)
346 	shmsegptr = &shmsegs[IPCID_TO_IX(shmmap_s->shmid)];
351 	i = shm_delete_mapping(p, shmmap_s, 1);
366 	struct shmmap_state	*shmmap_s = NULL;
388 	shmmap_s = (struct shmmap_state *)p->vm_shm;
390 	if (shmmap_s == NULL) {
392 		MALLOC(shmmap_s, struct shmmap_state *, size, M_SHM, M_WAITOK);
393 		if (shmmap_s == NULL) {
398 			shmmap_s[i].shmid = -1;
399 		p->vm_shm = (caddr_t)shmmap_s;
423 		if (shmmap_s->shmid == -1)
425 		shmmap_s++;
472 	shmmap_s->va = attach_va;
498 	shmmap_s->shmid = uap->shmid;
502 	*retval = shmmap_s->va;	/* XXX return -1 on error */
508 					  shmmap_s->va,
902 	struct shmmap_state *shmmap_s;
914 	MALLOC(shmmap_s, struct shmmap_state *, size, M_SHM, M_WAITOK);
915 	if (shmmap_s != NULL) {
916 		bcopy((caddr_t)p1->vm_shm, (caddr_t)shmmap_s, size);
917 		p2->vm_shm = (caddr_t)shmmap_s;
918 		for (i = 0; i < shminfo.shmseg; i++, shmmap_s++)
919 			if (shmmap_s->shmid != -1)
920 				shmsegs[IPCID_TO_IX(shmmap_s->shmid)].u.shm_nattch++;
934 	struct shmmap_state *shmmap_s;
937 	shmmap_s = (struct shmmap_state *)p->vm_shm;
940 	for (i = 0; i < shminfo.shmseg; i++, shmmap_s++)
941 		if (shmmap_s->shmid != -1)
946 			shm_delete_mapping(p, shmmap_s, 1);
961 	struct shmmap_state *shmmap_s;
964 	shmmap_s = (struct shmmap_state *)p->vm_shm;
966 	for (i = 0; i < shminfo.shmseg; i++, shmmap_s++)
967 		if (shmmap_s->shmid != -1)
968 			shm_delete_mapping(p, shmmap_s, 0);