diff options
Diffstat (limited to 'libcpp/symtab.c')
| -rw-r--r-- | libcpp/symtab.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/libcpp/symtab.c b/libcpp/symtab.c index 39ceced..c80dfa2 100644 --- a/libcpp/symtab.c +++ b/libcpp/symtab.c @@ -1,5 +1,5 @@ /* Hash tables. - Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc. + Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the @@ -68,6 +68,7 @@ ht_create (unsigned int order) obstack_alignment_mask (&table->stack) = 0; table->entries = xcalloc (nslots, sizeof (hashnode)); + table->entries_owned = true; table->nslots = nslots; return table; } @@ -78,7 +79,8 @@ void ht_destroy (hash_table *table) { obstack_free (&table->stack, NULL); - free (table->entries); + if (table->entries_owned) + free (table->entries); free (table); } @@ -199,7 +201,9 @@ ht_expand (hash_table *table) } while (++p < limit); - free (table->entries); + if (table->entries_owned) + free (table->entries); + table->entries_owned = true; table->entries = nentries; table->nslots = size; } @@ -222,6 +226,20 @@ ht_forall (hash_table *table, ht_cb cb, const void *v) while (++p < limit); } +/* Restore the hash table. */ +void +ht_load (hash_table *ht, hashnode *entries, + unsigned int nslots, unsigned int nelements, + bool own) +{ + if (ht->entries_owned) + free (ht->entries); + ht->entries = entries; + ht->nslots = nslots; + ht->nelements = nelements; + ht->entries_owned = own; +} + /* Dump allocation statistics to stderr. */ void |