2008/6/18 Tewen Hsieh <[EMAIL PROTECTED]>: > I use configure file - mib2c.iterate.conf to generate template codes > of a table. > In the generated xxxTable_handler function, there are just two cases: > MODE_GET and MODE_SET_RESERVE1.
Which version of the code are you using? I've just checked the mib2c.iterate.conf template for all active lines, and the template code includes blocks for all five MODE_SET_xxx passes. > Question 2: > But in the [iterate_access] generated xxxTable_handler function, > there are many cases including MODE_GET, MODE_SET_RESERVE1, > MODE_SET_RESERVE2, MODE_SET_ACTION, > MODE_SET_COMMIT, MODE_SET_UNDO and MODE_SET_FREE. > .... could anyone describe the goal of each case briefly? Please see the file 'AGENT.txt', which describes the model used for SET processing. This is discussed in the context of the old v4 UCD module API, but the SET processing is effectively the same with the handler-based approach as well. > Question 3: > Because I should access external data (ex: external database), which > configure file will be more feasible to my case (table, external data)? If it's a relatively small table, then the iterate helper is probably the simplest (although not the most efficient). If it's a larger table, and efficiency is a concern, then two approaches spring to mind. Either (my personal preference), use the 'table_tdata' helper to set up a local cache of the contents of the table, and serve requests from that. Or if you always want up-to-date information, and given a particular index, you can easily determine the next valid row of the table, then you might be better using the basic table helper to deal with extracting the index values (and checking valid columns), and handle the rest of the processing yourself. Alternatively, a hybrid of the two. Use 'table_tdata' to hold a cache of which rows are valid in the table, and then query the database directly in the handler routine, to retrieve the current data for that row. Such an approach wouldn't spot new rows immediately (and would have to cope with rows being deleted), but would at least give current values for the contents of the table. Dave ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Net-snmp-coders mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
