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stats: allow stats hook to be used with villas-hook in which case there is no node object

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This commit is contained in:
Steffen Vogel 2019-10-29 20:19:01 +01:00
parent 1bc639644e
commit 040c8e69bb
1 changed files with 68 additions and 45 deletions
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113
lib/hooks/stats.cpp
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@ -45,20 +45,14 @@ protected:
StatsHook *parent;
public:
StatsWriteHook(struct path *p, struct node *n, int fl, int prio, bool en = true) :
Hook(p, n, fl, prio, en)
StatsWriteHook(StatsHook *pa, struct path *p, struct node *n, int fl, int prio, bool en = true) :
Hook(p, n, fl, prio, en),
parent(pa)
{
state = State::CHECKED;
}
virtual Hook::Reason process(sample *smp)
{
timespec now = time_now();
node->stats->update(Stats::Metric::AGE, time_delta(&smp->ts.received, &now));
return Reason::OK;
}
virtual Hook::Reason process(sample *smp);
};
class StatsReadHook : public Hook {
@ -66,9 +60,12 @@ class StatsReadHook : public Hook {
protected:
sample *last;
StatsHook *parent;
public:
StatsReadHook(struct path *p, struct node *n, int fl, int prio, bool en = true) :
Hook(p, n, fl, prio, en)
StatsReadHook(StatsHook *pa, struct path *p, struct node *n, int fl, int prio, bool en = true) :
Hook(p, n, fl, prio, en),
parent(pa)
{
state = State::CHECKED;
}
@ -92,38 +89,14 @@ public:
state = State::STOPPED;
}
virtual Hook::Reason process(sample *smp)
{
if (last) {
if (smp->flags & last->flags & (int) SampleFlags::HAS_TS_RECEIVED)
node->stats->update(Stats::Metric::GAP_RECEIVED, time_delta(&last->ts.received, &smp->ts.received));
if (smp->flags & last->flags & (int) SampleFlags::HAS_TS_ORIGIN)
node->stats->update(Stats::Metric::GAP_SAMPLE, time_delta(&last->ts.origin, &smp->ts.origin));
if ((smp->flags & (int) SampleFlags::HAS_TS_ORIGIN) && (smp->flags & (int) SampleFlags::HAS_TS_RECEIVED))
node->stats->update(Stats::Metric::OWD, time_delta(&smp->ts.origin, &smp->ts.received));
if (smp->flags & last->flags & (int) SampleFlags::HAS_SEQUENCE) {
int dist = smp->sequence - (int32_t) last->sequence;
if (dist != 1)
node->stats->update(Stats::Metric::SMPS_REORDERED, dist);
}
}
sample_incref(smp);
if (last)
sample_decref(last);
last = smp;
return Reason::OK;
}
virtual Hook::Reason process(sample *smp);
};
class StatsHook : public Hook {
friend StatsReadHook;
friend StatsWriteHook;
protected:
StatsReadHook *readHook;
StatsWriteHook *writeHook;
@ -150,11 +123,13 @@ public:
uri()
{
/* Add child hooks */
readHook = new StatsReadHook(p, n, fl, prio, en);
writeHook = new StatsWriteHook(p, n, fl, prio, en);
readHook = new StatsReadHook(this, p, n, fl, prio, en);
writeHook = new StatsWriteHook(this, p, n, fl, prio, en);
vlist_push(&node->in.hooks, (void *) readHook);
vlist_push(&node->out.hooks, (void *) writeHook);
if (node) {
vlist_push(&node->in.hooks, (void *) readHook);
vlist_push(&node->out.hooks, (void *) writeHook);
}
}
virtual void start()
@ -189,6 +164,15 @@ public:
stats->reset();
}
virtual Hook::Reason process(sample *smp)
{
// Only call readHook if it hasnt been added to the node's hook list
if (!node)
return readHook->process(smp);
return Hook::Reason::OK;
}
virtual void periodic()
{
assert(state == State::STARTED);
@ -239,12 +223,51 @@ public:
/* Register statistic object to path.
*
* This allows the path code to update statistics. */
node->stats = stats;
if (node)
node->stats = stats;
state = State::PREPARED;
}
};
Hook::Reason StatsWriteHook::process(sample *smp)
{
timespec now = time_now();
parent->stats->update(Stats::Metric::AGE, time_delta(&smp->ts.received, &now));
return Reason::OK;
}
Hook::Reason StatsReadHook::process(sample *smp)
{
if (last) {
if (smp->flags & last->flags & (int) SampleFlags::HAS_TS_RECEIVED)
parent->stats->update(Stats::Metric::GAP_RECEIVED, time_delta(&last->ts.received, &smp->ts.received));
if (smp->flags & last->flags & (int) SampleFlags::HAS_TS_ORIGIN)
parent->stats->update(Stats::Metric::GAP_SAMPLE, time_delta(&last->ts.origin, &smp->ts.origin));
if ((smp->flags & (int) SampleFlags::HAS_TS_ORIGIN) && (smp->flags & (int) SampleFlags::HAS_TS_RECEIVED))
parent->stats->update(Stats::Metric::OWD, time_delta(&smp->ts.origin, &smp->ts.received));
if (smp->flags & last->flags & (int) SampleFlags::HAS_SEQUENCE) {
int dist = smp->sequence - (int32_t) last->sequence;
if (dist != 1)
parent->stats->update(Stats::Metric::SMPS_REORDERED, dist);
}
}
sample_incref(smp);
if (last)
sample_decref(last);
last = smp;
return Reason::OK;
}
/* Register hook */
static HookPlugin<StatsHook> p(
"stats",