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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
#include "network_collector.h"
#include "network/connection_sampler.h"
#include "network/traffic_sampler.h"
#include "proto/profiler.pb.h"
#include "utils/stopwatch.h"
#include <unistd.h>
using profiler::Stopwatch;
namespace profiler {
NetworkCollector::~NetworkCollector() {
if (is_running_) {
StopProfile();
}
}
void NetworkCollector::StartProfile() {
if (samplers_.empty()) {
CreateSamplers();
}
if (!is_running_.exchange(true)) {
profiler_thread_ = std::thread(&NetworkCollector::Collect, this);
}
}
void NetworkCollector::StopProfile() {
if (is_running_.exchange(false)) {
profiler_thread_.join();
}
}
void NetworkCollector::Collect() {
Stopwatch stopwatch;
while (is_running_.load()) {
for (const auto &sampler : samplers_) {
profiler::proto::ProfilerData response;
sampler->GetData(response.mutable_network_data());
response.set_end_timestamp(stopwatch.GetElapsed());
service_->save(response);
}
usleep(kSleepMicroseconds);
}
}
void NetworkCollector::CreateSamplers() {
std::string uid;
bool has_uid = NetworkSampler::GetUidString(
NetworkFiles::GetPidStatusFilePath(pid_), &uid);
if (has_uid) {
samplers_.emplace_back(
new TrafficSampler(uid, NetworkFiles::GetTrafficBytesFilePath()));
samplers_.emplace_back(new ConnectionSampler(
uid, NetworkFiles::GetConnectionFilePaths()));
}
}
} // profiler
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