Hi,
As Dave says, you have to use the cache helper :
mib2c -c mib2c.table_data.conf -S cache=1 myDataTable
The code produced don't compile, it's a little buggy. See my code below.
the cache->flags is set to call each time the load function.
http://www.net-snmp.org/dev/agent/group__cache__handler.html
The last problem is if the table is empty the load function is never
call !
----------
in .h:
NetsnmpCacheLoad myDataTable_load;
//NetsnmpCacheFree myDataTable_free;
in.c :
initialize_table_mydataTable(void) {
....
netsnmp_tdata_register(reg, table_data, table_info);
cache = netsnmp_cache_create(-1, myDataTable_load,
(NetsnmpCacheFree *)myDataTable_free,
myDataTable_oid, myDataTable_oid_len);
cache->magic = (void *) table_data;
cache->flags = NETSNMP_CACHE_DONT_INVALIDATE_ON_SET |
NETSNMP_CACHE_DONT_FREE_BEFORE_LOAD | NETSNMP_CACHE_DONT_FREE_EXPIRED |
NETSNMP_CACHE_DONT_AUTO_RELEASE;
netsnmp_inject_handler_before(reg,
netsnmp_cache_handler_get(cache),"mydataTable");
// Init table
mydataTable_load(cache, table_data);
}
int myDataTable_load(netsnmp_cache * cache, void *vmagic)
{
netsnmp_tdata * table_data = (netsnmp_tdata *) vmagic;
netsnmp_tdata_row *row;
struct myDataTable_entry *row_entry;
row = NULL;
row = netsnmp_tdata_row_next(table_data, row);
row_entry = (struct myDataTable_entry *)row->data;
row_entry->myDataVal1++;
....
}
-------
Stephane.
kumar undurthi a écrit :
Hi All,
I have requirement in which i have to fill the table data when
ever a request will come, For example check the below example.... it
was generated by using mib2c.table_data.conf.
: in which "ocStbHostAVInterfaceTable_handler" is taking
care of the requests, So my requirement is
when the a request come at " i.e "(check in code ) case MODE_GET:"
then i want to update the table instated of initialize the table first
(filling the table) at (check in code "
initialize_table_ocStbHostAVInterfaceTable(void) " )
Please give the Solution as early as possible..... (adv Thank's)
...
On Wed, Mar 12, 2008 at 6:39 AM, Dave Shield
< [EMAIL PROTECTED]>
wrote:
On 11/03/2008, kumar undurthi < [EMAIL PROTECTED]>
wrote:
> I have a problem in creating a table and Fill the table. i.e
> Normally table can create in initialization() part and can be fill
with the
> static data.
> But in My case.... I want to Create and Fill the table with the
dynamic
> data(values) when ever a request comes to the Agent.
You haven't said how you are generating the code,
or which table helper you are using. But if you run
something like
mib2c -c mib2c.table_data.conf -S cache=1 myTable
this should generate a suitable framework for your MIB module,
including the code to load the table data when a request
comes in. This cached data will then be used for the next
few requests, until it's judged "too old". Whereupon the
next request will trigger a fresh reload.
The same approach can be used with the iterator helper
(same command, but specifying 'mib2c.iterator.conf'),
and probably also with the MfD framework.
(though I don't know much about that one).
Dave
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