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Faster version of the function hashing possibly encoded objects, leading to a general speed gain when working with Sets of integers

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antirez 2010-02-02 12:19:24 +01:00
parent 3c68de9b01
commit ed9e496634
1 changed files with 18 additions and 4 deletions
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22
redis.c
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@ -954,10 +954,24 @@ static int dictEncObjKeyCompare(void *privdata, const void *key1,
static unsigned int dictEncObjHash(const void *key) { static unsigned int dictEncObjHash(const void *key) {
robj *o = (robj*) key; robj *o = (robj*) key;
o = getDecodedObject(o); if (o->encoding == REDIS_ENCODING_RAW) {
unsigned int hash = dictGenHashFunction(o->ptr, sdslen((sds)o->ptr)); return dictGenHashFunction(o->ptr, sdslen((sds)o->ptr));
decrRefCount(o); } else {
return hash; if (o->encoding == REDIS_ENCODING_INT) {
char buf[32];
int len;
len = snprintf(buf,32,"%ld",(long)o->ptr);
return dictGenHashFunction((unsigned char*)buf, len);
} else {
unsigned int hash;
o = getDecodedObject(o);
hash = dictGenHashFunction(o->ptr, sdslen((sds)o->ptr));
decrRefCount(o);
return hash;
}
}
} }
/* Sets type and expires */ /* Sets type and expires */