Thanks. But what about get_first_data_point() and get_next_data_point(). They also need to access the tcp_head right ? vamgic is not a an argument for these functions.
I have one more doubt. Let's say there is two table tcpTable and udpTable. And both has been loaded by same _load() function and _free function. netsnmp_inject_handler( reginfo, netsnmp_get_cache_handler(TCP_STATS_CACHE_TIMEOUT, tcpTable_load, tcpTable_free, tcpTable_oid, OID_LENGTH(tcpTable_oid))); So I do not want to create seperate cache for udp table. Like to keep the same cache for both the table oids. is it possible to do so ? How can I do so ? --- On Tue, 8/23/11, Dave Shield <[email protected]> wrote: From: Dave Shield <[email protected]> Subject: Re: is there any way I can avoid global variable? To: "sujata patra" <[email protected]> Cc: "net-snmp-coders" <[email protected]> Date: Tuesday, August 23, 2011, 12:17 AM On 22 August 2011 17:36, sujata patra <[email protected]> wrote: > Let 's take tcpTable.c ... I do not like the global variable. > Instead is there way way to pass this as argument across functions . > can this two netsnmp_cache *cache, void *vmagic be useful? You shouldn't touch the 'cache' parameter - this is used by the cache helper to decide whether/when to invoke the load/free functions. But you could certainly use the 'vmagic' parameter to avoid the use of a global variable. That's exactly why this parameter is there. Dave
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