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Fixed a bug in HSET, a memory leak, and a theoretical bug in dict.c

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antirez
2010-03-17 02:00:03 +01:00
parent b1d9c91ca8
commit 2069d06a0b
2 changed files with 9 additions and 3 deletions
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10
dict.c
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@@ -232,7 +232,7 @@ int dictAdd(dict *ht, void *key, void *val)
* operation. */
int dictReplace(dict *ht, void *key, void *val)
{
dictEntry *entry;
dictEntry *entry, auxentry;
/* Try to add the element. If the key
* does not exists dictAdd will suceed. */
@@ -241,8 +241,14 @@ int dictReplace(dict *ht, void *key, void *val)
/* It already exists, get the entry */
entry = dictFind(ht, key);
/* Free the old value and set the new one */
dictFreeEntryVal(ht, entry);
/* Set the new value and free the old one. Note that it is important
* to do that in this order, as the value may just be exactly the same
* as the previous one. In this context, think to reference counting,
* you want to increment (set), and then decrement (free), and not the
* reverse. */
auxentry = *entry;
dictSetHashVal(ht, entry, val);
dictFreeEntryVal(ht, &auxentry);
return 0;
}