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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_METRICS_CHILD_HISTOGRAM_FETCHER_IMPL_H_
#define COMPONENTS_METRICS_CHILD_HISTOGRAM_FETCHER_IMPL_H_
#include <memory>
#include <string>
#include <vector>
#include "base/memory/unsafe_shared_memory_region.h"
#include "components/metrics/public/mojom/histogram_fetcher.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
namespace base {
class HistogramDeltaSerialization;
} // namespace base
namespace metrics {
class ChildHistogramFetcherFactoryImpl
: public mojom::ChildHistogramFetcherFactory {
public:
ChildHistogramFetcherFactoryImpl();
~ChildHistogramFetcherFactoryImpl() override;
static void Create(
mojo::PendingReceiver<mojom::ChildHistogramFetcherFactory>);
private:
// mojom::ChildHistogramFetcherFactory:
void CreateFetcher(
base::UnsafeSharedMemoryRegion,
mojo::PendingReceiver<mojom::ChildHistogramFetcher>) override;
};
class ChildHistogramFetcherImpl : public mojom::ChildHistogramFetcher {
public:
ChildHistogramFetcherImpl();
ChildHistogramFetcherImpl(const ChildHistogramFetcherImpl&) = delete;
ChildHistogramFetcherImpl& operator=(const ChildHistogramFetcherImpl&) =
delete;
~ChildHistogramFetcherImpl() override;
private:
// mojom::ChildHistogramFetcher:
void GetChildNonPersistentHistogramData(
GetChildNonPersistentHistogramDataCallback callback) override;
void Ping(mojom::UmaPingCallSource call_source,
PingCallback callback) override;
// Extract snapshot data and then send it off to the Browser process.
// Send only a delta to what we have already sent.
void UploadAllHistograms(int64_t sequence_number);
// Prepares histogram deltas for transmission.
std::unique_ptr<base::HistogramDeltaSerialization>
histogram_delta_serialization_;
};
} // namespace metrics
#endif // COMPONENTS_METRICS_CHILD_HISTOGRAM_FETCHER_IMPL_H_
|
