I used mib2c to generate a table handler using the table data set
helper. This is working correctly, including row insertion/deletion
via a row status column.
However, I need to be able to implement a side-effect that must occur
when a row is deleted, and I am not sure how to do that. I tried
detecting the deletion from within the table handler function that
mib2c generated, but I was not successful.
/* Test Code */
int
myTable_handler(
netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests) {
if (reqinfo->mode == MODE_COMMIT)
{
for (netsnmp_request_info* request = requests;
request;
request = request->next)
{
netsnmp_table_data_set_storage *data =
netsnmp_extract_table_data_set_column(request,
COLUMN_MYTABLEROWSTATUS);
if (data == 0)
std::cout << "Null ptr" << std::endl;
else if (*data->data.integer == RS_DESTROY)
{
std::cout << "Destroying row" << std::endl;
}
}
}
return SNMP_ERR_NOERROR;
}
The netsnmp_extract_table_data_set_column always seems to return a
null pointer. I've also tried detecting other phases (MODE_RESERVE1,
etc.).
Can someone offer some guidance? Ideally, I would be able to have
access to the complete row before it is deleted so I can examine other
columns within the row.
Thanks.
Gregg
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