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/*
* Copyright 2020 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "pc/usage_pattern.h"
#include "api/peer_connection_interface.h"
#include "rtc_base/logging.h"
#include "system_wrappers/include/metrics.h"
namespace webrtc {
void UsagePattern::NoteUsageEvent(UsageEvent event) {
usage_event_accumulator_ |= static_cast<int>(event);
}
void UsagePattern::ReportUsagePattern(PeerConnectionObserver* observer) const {
RTC_DLOG(LS_INFO) << "Usage signature is " << usage_event_accumulator_;
RTC_HISTOGRAM_ENUMERATION_SPARSE("WebRTC.PeerConnection.UsagePattern",
usage_event_accumulator_,
static_cast<int>(UsageEvent::MAX_VALUE));
const int bad_bits =
static_cast<int>(UsageEvent::SET_LOCAL_DESCRIPTION_SUCCEEDED) |
static_cast<int>(UsageEvent::CANDIDATE_COLLECTED);
const int good_bits =
static_cast<int>(UsageEvent::SET_REMOTE_DESCRIPTION_SUCCEEDED) |
static_cast<int>(UsageEvent::REMOTE_CANDIDATE_ADDED) |
static_cast<int>(UsageEvent::ICE_STATE_CONNECTED);
if ((usage_event_accumulator_ & bad_bits) == bad_bits &&
(usage_event_accumulator_ & good_bits) == 0) {
// If called after close(), we can't report, because observer may have
// been deallocated, and therefore pointer is null. Write to log instead.
if (observer) {
observer->OnInterestingUsage(usage_event_accumulator_);
} else {
RTC_LOG(LS_INFO) << "Interesting usage signature "
<< usage_event_accumulator_
<< " observed after observer shutdown";
}
}
}
} // namespace webrtc
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