Function filterKey

src/db.cpp:1146–1161

static bool filterKey(robj_roptr kobj, sds pat, int patlen)
{
    bool filter = false;
    if (sdsEncodedObject(kobj)) {
        if (!stringmatchlen(pat, patlen, szFromObj(kobj), sdslen(szFromObj(kobj)), 0))
            filter = true;
    } else {
        char buf[LONG_STR_SIZE];
        int len;

        serverAssert(kobj->encoding == OBJ_ENCODING_INT);
        len = ll2string(buf,sizeof(buf),(long)ptrFromObj(kobj));
        if (!stringmatchlen(pat, patlen, buf, len, 0)) filter = true;
    }
    return filter;
}

/* This command implements SCAN, HSCAN and SSCAN commands.
 * If object 'o' is passed, then it must be a Hash, Set or Zset object, otherwise