/** Is the cache valid for a given request? */ int netsnmp_cache_is_valid(netsnmp_agent_request_info * reqinfo, const char* name) { netsnmp_cache *cache = netsnmp_cache_reqinfo_extract(reqinfo, name); return (cache && cache->valid); }
/** @internal Implements the stash_cache handler */ int netsnmp_stash_cache_helper(netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests) { netsnmp_cache *cache; netsnmp_stash_cache_info *cinfo; netsnmp_oid_stash_node *cnode; netsnmp_variable_list *cdata; netsnmp_request_info *request; DEBUGMSGTL(("helper:stash_cache", "Got request\n")); cache = netsnmp_cache_reqinfo_extract( reqinfo, reginfo->handlerName ); if (!cache) { DEBUGMSGTL(("helper:stash_cache", "No cache structure\n")); return SNMP_ERR_GENERR; } cinfo = (netsnmp_stash_cache_info *) cache->magic; switch (reqinfo->mode) { case MODE_GET: DEBUGMSGTL(("helper:stash_cache", "Processing GET request\n")); for(request = requests; request; request = request->next) { cdata = (netsnmp_variable_list*) netsnmp_oid_stash_get_data(cinfo->cache, requests->requestvb->name, requests->requestvb->name_length); if (cdata && cdata->val.string && cdata->val_len) { DEBUGMSGTL(("helper:stash_cache", "Found cached GET varbind\n")); DEBUGMSGOID(("helper:stash_cache", cdata->name, cdata->name_length)); DEBUGMSG(("helper:stash_cache", "\n")); snmp_set_var_typed_value(request->requestvb, cdata->type, cdata->val.string, cdata->val_len); } } break; case MODE_GETNEXT: DEBUGMSGTL(("helper:stash_cache", "Processing GETNEXT request\n")); for(request = requests; request; request = request->next) { cnode = netsnmp_oid_stash_getnext_node(cinfo->cache, requests->requestvb->name, requests->requestvb->name_length); if (cnode && cnode->thedata) { cdata = (netsnmp_variable_list*)cnode->thedata; if (cdata->val.string && cdata->name && cdata->name_length) { DEBUGMSGTL(("helper:stash_cache", "Found cached GETNEXT varbind\n")); DEBUGMSGOID(("helper:stash_cache", cdata->name, cdata->name_length)); DEBUGMSG(("helper:stash_cache", "\n")); snmp_set_var_typed_value(request->requestvb, cdata->type, cdata->val.string, cdata->val_len); snmp_set_var_objid(request->requestvb, cdata->name, cdata->name_length); } } } break; default: cinfo->cache_valid = 0; return netsnmp_call_next_handler(handler, reginfo, reqinfo, requests); } return SNMP_ERR_NOERROR; }
netsnmp_cache * netsnmp_extract_cache_info(netsnmp_agent_request_info * reqinfo) { return netsnmp_cache_reqinfo_extract(reqinfo, CACHE_NAME); }