Thanks for useful advices. I have tried it but can not success in compile.
1.I use "mib2c -S cache=1 -c mib2c.iterate.conf portInfoTable" to generate
the framework.
2.After compared the new framework with the old one, I got there are just
minor difference between them.
3.I added the difference code to the old one. Actually they are:
1) In "initialize_table_portInfoTable(void)" I add:
netsnmp_inject_handler_before(reg,
netsnmp_get_cache_handler
(PORTINFOTABLE_TIMEOUT,
portInfoTable_load, portInfoTable_free,
portInfoTable_oid,
portInfoTable_oid_len),
TABLE_ITERATOR_NAME);
2) Two new functions were added:
/*
* Example cache handling - set up linked list from a suitable file
*/
int portInfoTable_load(netsnmp_cache * cache, void *vmagic)
{
FILE *fp;
struct portInfoTable_entry *this;
char buf[256];
fp = fopen("/data/for/portInfoTable", "r");
init_port_info();
while (fgets(buf, 256, fp)) {
this = SNMP_MALLOC_TYPEDEF(struct portInfoTable_entry);
this->next = portInfoTable_head;
portInfoTable_head = this;
}
fclose(fp);
}
int portInfoTable_free(netsnmp_cache * cache, void *vmagic)
{
struct portInfoTable_entry *this, *that;
for (this = portInfoTable_head; this; this = that) {
that = this->next;
SNMP_FREE(this);
}
portInfoTable_head = NULL;
}
3) In PortInfoTable.h, 3 lines were added:
NetsnmpCacheLoad portInfoTable_load;
NetsnmpCacheFree portInfoTable_free;
#define PORTINFOTABLE_TIMEOUT 60
I think these are all the diffenerces. And maybe the Init_table() should be
added in portInfoTable_load(netsnmp_cache * cache, void *vmagic) to get the
init data, am I right?
But when I compile it there is an error:
portInfoTable.c:214: conflicting types for `portInfoTable_free'
portInfoTable.h:17: previous declaration of `portInfoTable_free'
make[2]: *** [portInfoTable.lo] Error 1
It means the return type of declaration in PortInfoTable.h and
PortInfoTable.c is conflicted. Up to now, I can not solve this problem.
Is there anyone have met the same problem?
Thank you and have a nice day~
Peter
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