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/******************************************************************************
*
* Copyright (C) 2016 Google, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#define LOG_TAG "bt_osi_metrics"
#include <unistd.h>
#include <algorithm>
#include <cerrno>
#include <chrono>
#include <cstdint>
#include <cstring>
#include <memory>
#include <mutex>
#include <base/base64.h>
#include <base/logging.h>
#include "osi/include/leaky_bonded_queue.h"
#include "osi/include/log.h"
#include "osi/include/osi.h"
#include "osi/include/time.h"
#include "osi/include/metrics.h"
namespace system_bt_osi {
// Maximum number of log entries for each repeated field
#define MAX_NUM_BLUETOOTH_SESSION 50
#define MAX_NUM_PAIR_EVENT 50
#define MAX_NUM_WAKE_EVENT 50
#define MAX_NUM_SCAN_EVENT 50
static float combine_averages(float avg_a, int64_t ct_a, float avg_b,
int64_t ct_b) {
if (ct_a > 0 && ct_b > 0) {
return (avg_a * ct_a + avg_b * ct_b) / (ct_a + ct_b);
} else if (ct_b > 0) {
return avg_b;
} else {
return avg_a;
}
}
static int32_t combine_averages(int32_t avg_a, int64_t ct_a, int32_t avg_b,
int64_t ct_b) {
if (ct_a > 0 && ct_b > 0) {
return (avg_a * ct_a + avg_b * ct_b) / (ct_a + ct_b);
} else if (ct_b > 0) {
return avg_b;
} else {
return avg_a;
}
}
void A2dpSessionMetrics::Update(const A2dpSessionMetrics& metrics) {
if (metrics.audio_duration_ms > 0) {
audio_duration_ms = std::max(static_cast<int64_t>(0), audio_duration_ms);
audio_duration_ms += metrics.audio_duration_ms;
}
if (metrics.media_timer_min_ms > 0) {
if (media_timer_min_ms < 0) {
media_timer_min_ms = metrics.media_timer_min_ms;
} else {
media_timer_min_ms =
std::min(media_timer_min_ms, metrics.media_timer_min_ms);
}
}
if (metrics.media_timer_max_ms > 0) {
media_timer_max_ms =
std::max(media_timer_max_ms, metrics.media_timer_max_ms);
}
if (metrics.media_timer_avg_ms > 0 && metrics.total_scheduling_count > 0) {
if (media_timer_avg_ms < 0 || total_scheduling_count < 0) {
media_timer_avg_ms = metrics.media_timer_avg_ms;
total_scheduling_count = metrics.total_scheduling_count;
} else {
media_timer_avg_ms = combine_averages(
media_timer_avg_ms, total_scheduling_count,
metrics.media_timer_avg_ms, metrics.total_scheduling_count);
total_scheduling_count += metrics.total_scheduling_count;
}
}
if (metrics.buffer_overruns_max_count > 0) {
buffer_overruns_max_count =
std::max(buffer_overruns_max_count, metrics.buffer_overruns_max_count);
}
if (metrics.buffer_overruns_total > 0) {
buffer_overruns_total =
std::max(static_cast<int32_t>(0), buffer_overruns_total);
buffer_overruns_total += metrics.buffer_overruns_total;
}
if (metrics.buffer_underruns_average > 0 &&
metrics.buffer_underruns_count > 0) {
if (buffer_underruns_average < 0 || buffer_underruns_count < 0) {
buffer_underruns_average = metrics.buffer_underruns_average;
buffer_underruns_count = metrics.buffer_underruns_count;
} else {
buffer_underruns_average = combine_averages(
metrics.buffer_underruns_average, metrics.buffer_underruns_count,
buffer_underruns_average, buffer_underruns_count);
buffer_underruns_count += metrics.buffer_underruns_count;
}
}
}
bool A2dpSessionMetrics::operator==(const A2dpSessionMetrics& rhs) const {
return audio_duration_ms == rhs.audio_duration_ms &&
media_timer_min_ms == rhs.media_timer_min_ms &&
media_timer_max_ms == rhs.media_timer_max_ms &&
media_timer_avg_ms == rhs.media_timer_avg_ms &&
total_scheduling_count == rhs.total_scheduling_count &&
buffer_overruns_max_count == rhs.buffer_overruns_max_count &&
buffer_overruns_total == rhs.buffer_overruns_total &&
buffer_underruns_average == rhs.buffer_underruns_average &&
buffer_underruns_count == rhs.buffer_underruns_count;
}
struct BluetoothMetricsLogger::impl {
// TODO(siyuanh): Implement for linux
};
BluetoothMetricsLogger::BluetoothMetricsLogger() : pimpl_(new impl) {}
void BluetoothMetricsLogger::LogPairEvent(uint32_t disconnect_reason,
uint64_t timestamp_ms,
uint32_t device_class,
device_type_t device_type) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::LogWakeEvent(wake_event_type_t type,
const std::string& requestor,
const std::string& name,
uint64_t timestamp_ms) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::LogScanEvent(bool start,
const std::string& initator,
scan_tech_t type, uint32_t results,
uint64_t timestamp_ms) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::LogBluetoothSessionStart(
connection_tech_t connection_tech_type, uint64_t timestamp_ms) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::LogBluetoothSessionEnd(
disconnect_reason_t disconnect_reason, uint64_t timestamp_ms) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::LogBluetoothSessionDeviceInfo(
uint32_t device_class, device_type_t device_type) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::LogA2dpSession(
const A2dpSessionMetrics& a2dp_session_metrics) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::WriteString(std::string* serialized, bool clear) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::WriteBase64String(std::string* serialized,
bool clear) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::WriteBase64(int fd, bool clear) {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::CutoffSession() {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::Build() {
// TODO(siyuanh): Implement for linux
}
void BluetoothMetricsLogger::Reset() {
// TODO(siyuanh): Implement for linux
}
} // namespace system_bt_osi
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