ns/nsctl/nsc_gen.c

157  * _nsc_rmmap_init (nsc_rmmap_t *map, char *name, int nslot,
159  *	Initialise a global resource map.
162  *	Returns TRUE if the map was successfully created. Otherwise
166  *	Initialises a global resource map. If the map already exists
170 _nsc_rmmap_init(nsc_rmmap_t *map, char *name,
181 		nvmap = _nsc_global_nvmemmap_lookup(map);
183 	if (!map->size)
184 		map->size = size;
185 	if (!map->inuse)
186 		map->inuse = nslot;
187 	if (!map->offset)
188 		map->offset = offset;
190 	if (!map->name[0])
191 		(void) strncpy(map->name, name, _NSC_MAXNAME);
195 		(void) nsc_commit_mem(map, nvmap,
199 	if (strncmp(map->name, name, _NSC_MAXNAME) ||
200 	    (uint32_t)size != map->size || (int32_t)offset != map->offset) {
212  * _nsc_rmmap_alloc (nsc_rmmap_t *map, char *name,
214  *	Allocate entry in a global resource map.
222  *	Allocates an entry in the global resource map. If the entry
226 _nsc_rmmap_alloc(nsc_rmmap_t *map, char *name, size_t size, void (*alloc)())
228 	int i, nslot = map[0].inuse;
238 		nvmap = _nsc_global_nvmemmap_lookup(map);
241 		if (!map[i].inuse || !map[i].size)
243 		if (strncmp(map[i].name, name, _NSC_MAXNAME))
245 		if ((uint32_t)size == map[i].size) {
246 			map[i].inuse |= (1 << nsc_node_id());
248 				(void) nsc_commit_mem(&map[i], &nvmap[i],
252 			return (map[i].offset);
259 	offset = map[0].offset;
261 	while ((int32_t)offset < (map[0].offset + map[0].size)) {
262 		if (_nsc_rmmap_inuse(map, &offset, &want))
272 			if (!map[i].inuse || !map[i].size)
278 		bzero(&map[i], sizeof (map[i]));
279 		(void) strncpy(map[i].name, name, _NSC_MAXNAME);
281 		map[i].size = size;
282 		map[i].offset = offset;
283 		map[i].inuse = (1 << nsc_node_id());
284 		if (nvmap) {  /* update the map and hdr dirty bit. */
285 			(void) nsc_commit_mem(&map[i], &nvmap[i],
303  * _nsc_rmmap_free (nsc_rmmap_t *map, char *name)
304  *	Free entry in a global resource map.
307  *	Frees an entry in the global resource map.
310 _nsc_rmmap_free(nsc_rmmap_t *map, char *name, nsc_mem_t *mp)
312 	int i, nslot = map[0].inuse;
317 		nvmap = _nsc_global_nvmemmap_lookup(map);
320 		if (!map[i].inuse || !map[i].size)
322 		if (strncmp(map[i].name, name, _NSC_MAXNAME))
325 		map[i].inuse &= ~(1 << nsc_node_id());
332 				map[i].inuse |= (1 << nsc_node_id());
335 			(void) nsc_commit_mem(&map[i], &nvmap[i],
350  * _nsc_rmmap_size (nsc_rmmap_t *map, char *name)
351  *	Find size of area in map.
354  *	Returns the size of the specified area in the map,
358 _nsc_rmmap_size(nsc_rmmap_t *map, char *name)
360 	int i, nslot = map[0].inuse;
366 		if (!map[i].inuse || !map[i].size)
369 		if (strncmp(map[i].name, name, _NSC_MAXNAME) == 0) {
370 			size = map[i].size;
382  * _nsc_rmmap_avail (nsc_rmmap_t *map)
383  *	Find available space in global resource map.
387  *	the global resource map.
390 _nsc_rmmap_avail(nsc_rmmap_t *map)
398 	offset = map[0].offset;
400 	while ((int32_t)offset < (map[0].offset + map[0].size))
401 		if (!_nsc_rmmap_inuse(map, &offset, &size)) {
415  * _nsc_rmmap_inuse (nsc_rmmap_t *map, ulong_t *offsetp, size_t *sizep)
416  *	Check if a section of the map is in use.
429  *	Checks the specified global map to determine if any part
433 _nsc_rmmap_inuse(nsc_rmmap_t *map, ulong_t *offsetp, size_t *sizep)
439 	nslot = map[0].inuse;
440 	avail = map[0].offset + map[0].size - offset;
443 		if (!map[i].size || !map[i].inuse)
445 		if ((int32_t)(offset + size) > map[i].offset &&
446 		    (int32_t)offset < (map[i].offset + map[i].size)) {
447 			(*offsetp) = map[i].offset + map[i].size;
451 		if (map[i].offset >= (int32_t)offset)
452 			if (avail > map[i].offset - offset)
453 				avail = map[i].offset - offset;