SFLSampler *sfl_agent_addSampler(SFLAgent *agent, SFLDataSource_instance *pdsi)
{
/* Keep the list sorted. */
SFLSampler *prev = NULL, *sm = agent->samplers;
for(; sm != NULL; prev = sm, sm = sm->nxt) {
int64_t cmp = sfl_dsi_compare(pdsi, &sm->dsi);
if(cmp == 0) return sm; /* found - return existing one */
if(cmp < 0) break; /* insert here */
}
/* either we found the insert point, or reached the end of the list...*/
{
SFLSampler *newsm = (SFLSampler *)sflAlloc(agent, sizeof(SFLSampler));
sfl_sampler_init(newsm, agent, pdsi);
if(prev) prev->nxt = newsm;
else agent->samplers = newsm;
newsm->nxt = sm;
/* see if we should go in the ifIndex jumpTable */
if(SFL_DS_CLASS(newsm->dsi) == 0) {
SFLSampler *test = sfl_agent_getSamplerByIfIndex(agent, SFL_DS_INDEX(newsm->dsi));
if(test && (SFL_DS_INSTANCE(newsm->dsi) < SFL_DS_INSTANCE(test->dsi))) {
/* replace with this new one because it has a lower ds_instance number */
sfl_agent_jumpTableRemove(agent, test);
test = NULL;
}
if(test == NULL) sfl_agent_jumpTableAdd(agent, newsm);
}
return newsm;
}
}
static void reset(SFLSampler *sampler)
{
SFLDataSource_instance dsi = sampler->dsi;
sfl_sampler_init(sampler, sampler->agent, &dsi);
}
