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patch 9.0.0949: crash when unletting a variable while listing variables

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Problem:    Crash when unletting a variable while listing variables.
Solution:   Disallow changing a hashtable while going over the entries.
            (closes #11435)
This commit is contained in:
Bram Moolenaar
2022-11-25 16:31:51 +00:00
parent c1cf4c9107
commit ef2c325f5e
21 changed files with 143 additions and 68 deletions
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2
src/proto/dict.pro
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@@ -10,7 +10,7 @@ void dict_unref(dict_T *d);
int dict_free_nonref(int copyID);
void dict_free_items(int copyID);
dictitem_T *dictitem_alloc(char_u *key);
void dictitem_remove(dict_T *dict, dictitem_T *item);
void dictitem_remove(dict_T *dict, dictitem_T *item, char *command);
void dictitem_free(dictitem_T *item);
dict_T *dict_copy(dict_T *orig, int deep, int top, int copyID);
int dict_wrong_func_name(dict_T *d, typval_T *tv, char_u *name);

5
src/proto/hashtab.pro
View File

@@ -1,13 +1,14 @@
/* hashtab.c */
void hash_init(hashtab_T *ht);
int check_hashtab_frozen(hashtab_T *ht, char *command);
void hash_clear(hashtab_T *ht);
void hash_clear_all(hashtab_T *ht, int off);
hashitem_T *hash_find(hashtab_T *ht, char_u *key);
hashitem_T *hash_lookup(hashtab_T *ht, char_u *key, hash_T hash);
void hash_debug_results(void);
int hash_add(hashtab_T *ht, char_u *key);
int hash_add(hashtab_T *ht, char_u *key, char *command);
int hash_add_item(hashtab_T *ht, hashitem_T *hi, char_u *key, hash_T hash);
void hash_remove(hashtab_T *ht, hashitem_T *hi);
int hash_remove(hashtab_T *ht, hashitem_T *hi, char *command);
void hash_lock(hashtab_T *ht);
void hash_lock_size(hashtab_T *ht, int size);
void hash_unlock(hashtab_T *ht);