/* Emit the commands needed to rebuild a hash object.
* The function returns 0 on error, 1 on success. */
int rewriteHashObject(rio *r, robj *key, robj *o) {
hashTypeIterator *hi;
long long count = 0, items = hashTypeLength(o);
hi = hashTypeInitIterator(o);
while (hashTypeNext(hi) != REDIS_ERR) {
if (count == 0) {
int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ?
REDIS_AOF_REWRITE_ITEMS_PER_CMD : items;
if (rioWriteBulkCount(r,'*',2+cmd_items*2) == 0) return 0;
if (rioWriteBulkString(r,"HMSET",5) == 0) return 0;
if (rioWriteBulkObject(r,key) == 0) return 0;
}
if (rioWriteHashIteratorCursor(r, hi, REDIS_HASH_KEY) == 0) return 0;
if (rioWriteHashIteratorCursor(r, hi, REDIS_HASH_VALUE) == 0) return 0;
if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0;
items--;
}
hashTypeReleaseIterator(hi);
return 1;
}
void hashTypeConvertZiplist(robj *o, int enc) {
logicErrorExpr(o->encoding == REDIS_ENCODING_ZIPLIST, "Invalid type");
if (enc == REDIS_ENCODING_ZIPLIST) {
/* Nothing to do... */
} else if (enc == REDIS_ENCODING_HT) {
hashTypeIterator *hi;
dict *dict;
int ret;
hi = hashTypeInitIterator(o);
dict = dictCreate(&hashDictType, NULL);
while (hashTypeNext(hi) != REDIS_ERR) {
robj *field, *value;
field = hashTypeCurrentObject(hi, REDIS_HASH_KEY);
field = tryObjectEncoding(field);
value = hashTypeCurrentObject(hi, REDIS_HASH_VALUE);
value = tryObjectEncoding(value);
ret = dictAdd(dict, field, value);
if (ret != DICT_OK) {
// redisLogHexDump(REDIS_WARNING,"ziplist with dup elements dump",
// o->ptr,ziplistBlobLen(o->ptr));
logicErrorExpr(ret == DICT_OK, "Never happend");
}
}
hashTypeReleaseIterator(hi);
zfree(o->ptr);
o->encoding = REDIS_ENCODING_HT;
o->ptr = dict;
} else {
logicError("Unknown hash encoding");
}
}