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92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/reporting/reporting_garbage_collector.h"
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#include <utility>
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#include <vector>
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#include "base/time/tick_clock.h"
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#include "base/time/time.h"
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#include "base/timer/timer.h"
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#include "net/reporting/reporting_cache.h"
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#include "net/reporting/reporting_context.h"
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#include "net/reporting/reporting_observer.h"
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#include "net/reporting/reporting_policy.h"
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#include "net/reporting/reporting_report.h"
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namespace net {
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namespace {
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class ReportingGarbageCollectorImpl : public ReportingGarbageCollector,
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public ReportingObserver {
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public:
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ReportingGarbageCollectorImpl(ReportingContext* context)
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: context_(context), timer_(std::make_unique<base::OneShotTimer>()) {
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context_->AddObserver(this);
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}
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// ReportingGarbageCollector implementation:
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~ReportingGarbageCollectorImpl() override {
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context_->RemoveObserver(this);
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}
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void SetTimerForTesting(std::unique_ptr<base::Timer> timer) override {
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timer_ = std::move(timer);
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}
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// ReportingObserver implementation:
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void OnCacheUpdated() override {
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if (timer_->IsRunning())
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return;
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timer_->Start(FROM_HERE, context_->policy().garbage_collection_interval,
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base::Bind(&ReportingGarbageCollectorImpl::CollectGarbage,
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base::Unretained(this)));
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}
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private:
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void CollectGarbage() {
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base::TimeTicks now = context_->tick_clock()->NowTicks();
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const ReportingPolicy& policy = context_->policy();
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std::vector<const ReportingReport*> all_reports;
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context_->cache()->GetReports(&all_reports);
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std::vector<const ReportingReport*> failed_reports;
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std::vector<const ReportingReport*> expired_reports;
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for (const ReportingReport* report : all_reports) {
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if (report->attempts >= policy.max_report_attempts)
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failed_reports.push_back(report);
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else if (now - report->queued >= policy.max_report_age)
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expired_reports.push_back(report);
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}
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// Don't restart the timer on the garbage collector's own updates.
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context_->RemoveObserver(this);
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context_->cache()->RemoveReports(failed_reports,
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ReportingReport::Outcome::ERASED_FAILED);
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context_->cache()->RemoveReports(expired_reports,
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ReportingReport::Outcome::ERASED_EXPIRED);
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context_->AddObserver(this);
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}
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ReportingContext* context_;
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std::unique_ptr<base::Timer> timer_;
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};
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} // namespace
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// static
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std::unique_ptr<ReportingGarbageCollector> ReportingGarbageCollector::Create(
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ReportingContext* context) {
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return std::make_unique<ReportingGarbageCollectorImpl>(context);
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}
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ReportingGarbageCollector::~ReportingGarbageCollector() {}
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} // namespace net
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