271 	__nis_hash_item_mt	*item = arg;  in __nis_insert_item_mt()  local
275 	if (item == 0 || __nis_lock_hash_table(table, 0, "nitmt") == 0)  in __nis_insert_item_mt()
278 	if ((*(pp = __find_item_mt(item->name, table, &key))) != 0) {  in __nis_insert_item_mt()
283 	(void) pthread_cond_init(&item->lock, 0);  in __nis_insert_item_mt()
284 	item->readers = item->writer = 0;  in __nis_insert_item_mt()
285 	item->last_reader_id = item->writer_id = INV_PTHREAD_ID;  in __nis_insert_item_mt()
287 		item->writer = 1;  in __nis_insert_item_mt()
288 		item->writer_id = pthread_self();  in __nis_insert_item_mt()
291 		item->readers = 1;  in __nis_insert_item_mt()
292 		item->last_reader_id = pthread_self();  in __nis_insert_item_mt()
295 	item->next	= *pp;  in __nis_insert_item_mt()
296 	*pp		= item;  in __nis_insert_item_mt()
297 	item->keychain	= key;  in __nis_insert_item_mt()
300 		table->first->prv_item = item;  in __nis_insert_item_mt()
302 	item->nxt_item	= table->first;  in __nis_insert_item_mt()
303 	item->prv_item	= NULL;  in __nis_insert_item_mt()
304 	table->first	= item;  in __nis_insert_item_mt()
314 	__nis_hash_item_mt	*item;  in __nis_insert_name_mt()  local
319 	if ((item = malloc(sizeof (*item))) == 0) {  in __nis_insert_name_mt()
324 	if ((item->name = strdup(name)) == 0) {  in __nis_insert_name_mt()
326 		free(item);  in __nis_insert_name_mt()
330 	if (! __nis_insert_item_mt(item, table, 0)) {  in __nis_insert_name_mt()
331 		free(item->name);  in __nis_insert_name_mt()
332 		free(item);  in __nis_insert_name_mt()
350 	__nis_hash_item_mt	*item;  in __nis_find_item_mt()  local
369 	while ((item = *__find_item_mt(name, table, 0)) != 0) {  in __nis_find_item_mt()
371 				(item->writer == 0 && item->readers == 0))  in __nis_find_item_mt()
373 		if (item->writer == 0 && readwrite > 0)  in __nis_find_item_mt()
375 		if ((item->writer != 0 && item->writer_id == me))  in __nis_find_item_mt()
382 		(void) pthread_cond_wait(&item->lock, &table->lock);  in __nis_find_item_mt()
385 	if (item != 0) {  in __nis_find_item_mt()
387 			if (item->writer == 0) {  in __nis_find_item_mt()
388 				item->writer_id = me;  in __nis_find_item_mt()
391 			item->writer++;  in __nis_find_item_mt()
393 			if (item->readers == 0) {  in __nis_find_item_mt()
396 			item->last_reader_id = me;  in __nis_find_item_mt()
397 			item->readers++;  in __nis_find_item_mt()
403 	return (item);  in __nis_find_item_mt()
409 	__nis_hash_item_mt	*item, *cur, *prev;  in __nis_pop_item_mt()  local
417 	while ((item = table->first) != 0) {  in __nis_pop_item_mt()
420 		if (item->readers == 0 && item->writer == 0)  in __nis_pop_item_mt()
422 		if (item->writer != 0 && item->writer_id == mtid)  in __nis_pop_item_mt()
424 		(void) pthread_cond_wait(&item->lock, &table->lock);  in __nis_pop_item_mt()
428 	if (item == 0) {  in __nis_pop_item_mt()
434 	for (cur = table->keys[item->keychain]; cur;  in __nis_pop_item_mt()
436 		if (cur == item) {  in __nis_pop_item_mt()
455 	item->keychain = -1;  in __nis_pop_item_mt()
459 			(item->writer > 0 || item->readers > 0)) {  in __nis_pop_item_mt()
471 	(void) pthread_cond_signal(&item->lock);  in __nis_pop_item_mt()
472 	(void) pthread_cond_destroy(&item->lock);  in __nis_pop_item_mt()
478 	if (item->readers == 0 && item->writer == 0 &&  in __nis_pop_item_mt()
480 		(*table->destroyItem)(item);  in __nis_pop_item_mt()
481 		item = 0;  in __nis_pop_item_mt()
483 		item->next = 0;  in __nis_pop_item_mt()
484 		item->prv_item = 0;  in __nis_pop_item_mt()
485 		item->nxt_item = 0;  in __nis_pop_item_mt()
496 	return ((item != 0) ? item : __nis_pop_item_mt(table));  in __nis_pop_item_mt()
583 	__nis_hash_item_mt	*item = arg;  in __nis_release_item()  local
586 	if (item == 0 || __nis_lock_hash_table(table, 0, "nreli") == 0)  in __nis_release_item()
589 	if ((readwrite < 0 && abs(readwrite) > item->writer) ||  in __nis_release_item()
590 		(readwrite < 0 && item->writer > 0 &&  in __nis_release_item()
591 			item->writer_id != pthread_self()) ||  in __nis_release_item()
592 		(readwrite > 0 && readwrite > item->readers)) {  in __nis_release_item()
599 		item->writer += readwrite;  in __nis_release_item()
600 		if (item->writer == 0 && item->keychain >= 0) {  in __nis_release_item()
606 		item->readers -= readwrite;  in __nis_release_item()
607 		item->last_reader_id = INV_PTHREAD_ID;  in __nis_release_item()
608 		if (item->readers == 0 && item->keychain >= 0) {  in __nis_release_item()
621 		(void) pthread_cond_signal(&item->lock);  in __nis_release_item()
628 	if (item->keychain < 0 &&  in __nis_release_item()
629 			item->readers == 0 && item->writer == 0 &&  in __nis_release_item()
630 			item->next == 0 &&  in __nis_release_item()
631 			item->prv_item == 0 && item->nxt_item == 0 &&  in __nis_release_item()
633 		(*table->destroyItem)(item);  in __nis_release_item()
647 	__nis_hash_item_mt	*item = arg;  in __nis_item_access()  local
649 	if (item != 0) {  in __nis_item_access()
650 		if (item->writer > 0) {  in __nis_item_access()
651 			if (item->writer_id != pthread_self())  in __nis_item_access()
654 		} else if (item->readers > 0) {  in __nis_item_access()