496 sym = allocate_symbol(name, len, heap);
497 if (_local_table->insert(THREAD, lookup, sym, &rehash_warning, &clean_hint)) {
498 break;
499 }
500 // In case another thread did a concurrent add, return value already in the table.
501 // This could fail if the symbol got deleted concurrently, so loop back until success.
502 if (_local_table->get(THREAD, lookup, stg, &rehash_warning)) {
503 sym = stg.get_res_sym();
504 break;
505 }
506 } while(true);
507
508 update_needs_rehash(rehash_warning);
509
510 if (clean_hint) {
511 mark_has_items_to_clean();
512 check_concurrent_work();
513 }
514
515 assert((sym == NULL) || sym->refcount() != 0, "found dead symbol");
516 #if INCLUDE_CDS
517 if (DumpSharedSpaces) {
518 if (sym != NULL) {
519 MetaspaceShared::add_symbol(sym);
520 }
521 }
522 #endif
523 return sym;
524 }
525
526 Symbol* SymbolTable::new_permanent_symbol(const char* name) {
527 unsigned int hash = 0;
528 int len = (int)strlen(name);
529 Symbol* sym = SymbolTable::lookup_only(name, len, hash);
530 if (sym == NULL) {
531 sym = do_add_if_needed(name, len, hash, false);
532 }
533 if (!sym->is_permanent()) {
534 sym->make_permanent();
535 log_trace_symboltable_helper(sym, "Asked for a permanent symbol, but got a regular one");
536 }
537 return sym;
538 }
539
540 struct SizeFunc : StackObj {
541 size_t operator()(Symbol** value) {
542 assert(value != NULL, "expected valid value");
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496 sym = allocate_symbol(name, len, heap);
497 if (_local_table->insert(THREAD, lookup, sym, &rehash_warning, &clean_hint)) {
498 break;
499 }
500 // In case another thread did a concurrent add, return value already in the table.
501 // This could fail if the symbol got deleted concurrently, so loop back until success.
502 if (_local_table->get(THREAD, lookup, stg, &rehash_warning)) {
503 sym = stg.get_res_sym();
504 break;
505 }
506 } while(true);
507
508 update_needs_rehash(rehash_warning);
509
510 if (clean_hint) {
511 mark_has_items_to_clean();
512 check_concurrent_work();
513 }
514
515 assert((sym == NULL) || sym->refcount() != 0, "found dead symbol");
516 return sym;
517 }
518
519 Symbol* SymbolTable::new_permanent_symbol(const char* name) {
520 unsigned int hash = 0;
521 int len = (int)strlen(name);
522 Symbol* sym = SymbolTable::lookup_only(name, len, hash);
523 if (sym == NULL) {
524 sym = do_add_if_needed(name, len, hash, false);
525 }
526 if (!sym->is_permanent()) {
527 sym->make_permanent();
528 log_trace_symboltable_helper(sym, "Asked for a permanent symbol, but got a regular one");
529 }
530 return sym;
531 }
532
533 struct SizeFunc : StackObj {
534 size_t operator()(Symbol** value) {
535 assert(value != NULL, "expected valid value");
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