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LATENCY LATEST implemented.

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This commit is contained in:
antirez 2014-07-01 16:17:33 +02:00
parent 753b707d2a
commit 83beaa886c
1 changed files with 24 additions and 0 deletions
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24
src/latency.c
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@ -107,6 +107,27 @@ void latencyCommandReplyWithSamples(redisClient *c, struct latencyTimeSeries *ts
setDeferredMultiBulkLength(c,replylen,samples);
}
/* latencyCommand() helper to produce the reply for the LATEST subcommand,
* listing the last latency sample for every event type registered so far. */
void latencyCommandReplyWithLatestEvents(redisClient *c) {
dictIterator *di;
dictEntry *de;
addReplyMultiBulkLen(c,dictSize(server.latency_events));
di = dictGetIterator(server.latency_events);
while((de = dictNext(di)) != NULL) {
char *event = dictGetKey(de);
struct latencyTimeSeries *ts = dictGetVal(de);
int last = (ts->idx + LATENCY_TS_LEN - 1) % LATENCY_TS_LEN;
addReplyMultiBulkLen(c,3);
addReplyBulkCString(c,event);
addReplyLongLong(c,ts->samples[last].time);
addReplyLongLong(c,ts->samples[last].latency);
}
dictReleaseIterator(di);
}
/* LATENCY command implementations.
*
* LATENCY SAMPLES: return time-latency samples for the specified event.
@ -122,6 +143,9 @@ void latencyCommand(redisClient *c) {
ts = dictFetchValue(server.latency_events,c->argv[2]->ptr);
if (ts == NULL) goto nodataerr;
latencyCommandReplyWithSamples(c,ts);
} else if (!strcasecmp(c->argv[1]->ptr,"latest") && c->argc == 2) {
/* LATENCY LATEST */
latencyCommandReplyWithLatestEvents(c);
} else {
addReply(c,shared.syntaxerr);
return;