File: expired_histogram_util.cc

package info (click to toggle)
chromium 138.0.7204.157-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 6,071,864 kB
  • sloc: cpp: 34,936,859; ansic: 7,176,967; javascript: 4,110,704; python: 1,419,953; asm: 946,768; xml: 739,967; pascal: 187,324; sh: 89,623; perl: 88,663; objc: 79,944; sql: 50,304; cs: 41,786; fortran: 24,137; makefile: 21,806; php: 13,980; tcl: 13,166; yacc: 8,925; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (34 lines) | stat: -rw-r--r-- 1,140 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/metrics/expired_histogram_util.h"

#include "base/feature_list.h"
#include "base/metrics/field_trial_params.h"
#include "base/metrics/statistics_recorder.h"
#include "components/metrics/expired_histograms_checker.h"

namespace metrics {
namespace {

BASE_FEATURE(kExpiredHistogramLogicFeature,
             "ExpiredHistogramLogic",
             base::FEATURE_DISABLED_BY_DEFAULT);

const base::FeatureParam<std::string> kAllowlistParam{
    &kExpiredHistogramLogicFeature, "allowlist", ""};

}  // namespace

void EnableExpiryChecker(base::span<const uint32_t> expired_histograms_hashes) {
  DCHECK(base::FeatureList::GetInstance());
  if (base::FeatureList::IsEnabled(kExpiredHistogramLogicFeature)) {
    std::string allowlist = kAllowlistParam.Get();
    base::StatisticsRecorder::SetRecordChecker(
        std::make_unique<ExpiredHistogramsChecker>(expired_histograms_hashes,
                                                   allowlist));
  }
}

}  // namespace metrics