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SRANDMEMBER <count> leak fixed.

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For "CASE 4" (see code) we need to free the element if it's already in
the result dictionary and adding it failed.
This commit is contained in:
antirez 2012-09-20 16:33:36 +02:00
parent be90c803e3
commit 578c94597f
1 changed files with 10 additions and 8 deletions
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18
src/t_set.c
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@ -476,19 +476,21 @@ void srandmemberWithCountCommand(redisClient *c) {
unsigned long added = 0;
while(added < count) {
int retval;
encoding = setTypeRandomElement(set,&ele,&llele);
if (encoding == REDIS_ENCODING_INTSET) {
retval = dictAdd(d,createStringObjectFromLongLong(llele),NULL);
ele = createStringObjectFromLongLong(llele);
} else if (ele->encoding == REDIS_ENCODING_RAW) {
retval = dictAdd(d,dupStringObject(ele),NULL);
ele = dupStringObject(ele);
} else if (ele->encoding == REDIS_ENCODING_INT) {
retval = dictAdd(d,
createStringObjectFromLongLong((long)ele->ptr),NULL);
ele = createStringObjectFromLongLong((long)ele->ptr);
}
if (retval == DICT_OK) added++;
/* Try to add the object to the dictionary. If it already exists
* free it, otherwise increment the number of objects we have
* in the result dictionary. */
if (dictAdd(d,ele,NULL) == DICT_OK)
added++;
else
decrRefCount(ele);
}
}