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d9f316ab83
These new converters make it possible to look up any sample expression in a table, and check whether an equivalent key exists or not, and if it exists, to retrieve the associated data (eg: gpc0, request rate, etc...). Till now it was only possible using tracking, but sometimes tracking is not suited to only retrieving such counters, either because it's done too early or because too many items need to be checked without necessarily being tracked. These converters all take a string on input, and then convert it again to the table's type. This means that if an input sample is of type IPv4 and the table is of type IP, it will first be converted to a string, then back to an IP address. This is a limitation of the current design which does not allow converters to declare that "any" type is supported on input. Since strings are the only types which can be cast to any other one, this method always works. The following converters were added : in_table, table_bytes_in_rate, table_bytes_out_rate, table_conn_cnt, table_conn_cur, table_conn_rate, table_gpc0, table_gpc0_rate, table_http_err_cnt, table_http_err_rate, table_http_req_cnt, table_http_req_rate, table_kbytes_in, table_kbytes_out, table_server_id, table_sess_cnt, table_sess_rate, table_trackers.