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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "services/audio/service_metrics.h"
#include "base/metrics/histogram_macros.h"
#include "base/time/tick_clock.h"
#include "base/trace_event/trace_event.h"
namespace audio {
ServiceMetrics::ServiceMetrics(const base::TickClock* clock) : clock_(clock) {}
ServiceMetrics::~ServiceMetrics() {
LogHasNoConnectionsDuration();
}
void ServiceMetrics::HasConnections() {
TRACE_EVENT_ASYNC_BEGIN0("audio", "Audio service has connections", this);
has_connections_start_ = clock_->NowTicks();
LogHasNoConnectionsDuration();
}
void ServiceMetrics::HasNoConnections() {
TRACE_EVENT_ASYNC_END0("audio", "Audio service has connections", this);
has_no_connections_start_ = clock_->NowTicks();
DCHECK_NE(base::TimeTicks(), has_connections_start_);
UMA_HISTOGRAM_CUSTOM_TIMES("Media.AudioService.HasConnectionsDuration",
clock_->NowTicks() - has_connections_start_,
base::TimeDelta(), base::TimeDelta::FromDays(7),
50);
has_connections_start_ = base::TimeTicks();
}
void ServiceMetrics::LogHasNoConnectionsDuration() {
// Service shuts down without having accepted any connections in its lifetime
// or with active connections, meaning there is no "no connection" interval in
// progress.
if (has_no_connections_start_.is_null())
return;
UMA_HISTOGRAM_CUSTOM_TIMES("Media.AudioService.HasNoConnectionsDuration",
clock_->NowTicks() - has_no_connections_start_,
base::TimeDelta(),
base::TimeDelta::FromMinutes(10), 50);
has_no_connections_start_ = base::TimeTicks();
}
} // namespace audio
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