Function addReplyErrorLength

app/redis-6.2.6/src/networking.c:410–416

Low level function called by the addReplyError...() functions. * It emits the protocol for a Redis error, in the form: * * -ERRORCODE Error Message * * If the error code is already passed in the string 's', the error * code provided is used, otherwise the string "-ERR " for the generic * error code is automatically added. * Note that 's' must NOT end with \r\n. */

 * error code is automatically added.
 * Note that 's' must NOT end with \r\n. */
void addReplyErrorLength(client *c, const char *s, size_t len) {
    /* If the string already starts with "-..." then the error code
     * is provided by the caller. Otherwise we use "-ERR". */
    if (!len || s[0] != '-') addReplyProto(c,"-ERR ",5);
    addReplyProto(c,s,len);
    addReplyProto(c,"\r\n",2);
}

/* Do some actions after an error reply was sent (Log if needed, updates stats, etc.) */
void afterErrorReply(client *c, const char *s, size_t len) {