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sourcestats: reset SST instance thoroughly when dropping samples

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This commit is contained in:
Miroslav Lichvar 2014-06-02 16:30:12 +02:00
parent c903c5f72b
commit 13d734c8d2
2 changed files with 26 additions and 11 deletions
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34
sourcestats.c
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@ -188,6 +188,26 @@ SST_CreateInstance(uint32_t refid, IPAddr *addr)
inst = MallocNew(struct SST_Stats_Record);
inst->refid = refid;
inst->ip_addr = addr;
SST_ResetInstance(inst);
return inst;
}
/* ================================================== */
/* This function deletes an instance of the statistics handler. */
void
SST_DeleteInstance(SST_Stats inst)
{
Free(inst);
}
/* ================================================== */
void
SST_ResetInstance(SST_Stats inst)
{
inst->n_samples = 0;
inst->runs_samples = 0;
inst->last_sample = 0;
@ -203,16 +223,6 @@ SST_CreateInstance(uint32_t refid, IPAddr *addr)
inst->offset_time.tv_usec = 0;
inst->variance = 16.0;
inst->nruns = 0;
return inst;
}
/* ================================================== */
/* This function deletes an instance of the statistics handler. */
void
SST_DeleteInstance(SST_Stats inst)
{
Free(inst);
}
/* ================================================== */
@ -258,7 +268,7 @@ SST_AccumulateSample(SST_Stats inst, struct timeval *sample_time,
UTI_CompareTimevals(&inst->sample_times[inst->last_sample], sample_time) >= 0) {
LOG(LOGS_WARN, LOGF_SourceStats, "Out of order sample detected, discarding history for %s",
inst->ip_addr ? UTI_IPToString(inst->ip_addr) : UTI_RefidToString(inst->refid));
prune_register(inst, inst->n_samples);
SST_ResetInstance(inst);
}
n = inst->last_sample = (inst->last_sample + 1) %
@ -584,6 +594,8 @@ SST_GetTrackingData(SST_Stats inst, struct timeval *ref_time,
int i, j;
double elapsed_sample;
assert(inst->n_samples > 0);
i = get_runsbuf_index(inst, inst->best_single_sample);
j = get_buf_index(inst, inst->best_single_sample);

3
sourcestats.h
View file

@ -43,6 +43,9 @@ extern SST_Stats SST_CreateInstance(uint32_t refid, IPAddr *addr);
/* This function deletes an instance of the statistics handler. */
extern void SST_DeleteInstance(SST_Stats inst);
/* This function resets an instance */
extern void SST_ResetInstance(SST_Stats inst);
/* This function accumulates a single sample into the statistics handler
sample_time is the epoch at which the sample is to be considered to