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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_QUOTA_QUOTA_CONTEXT_H_
#define CONTENT_BROWSER_QUOTA_QUOTA_CONTEXT_H_
#include <memory>
#include "base/memory/ref_counted_delete_on_sequence.h"
#include "base/memory/scoped_refptr.h"
#include "base/sequence_checker.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "storage/browser/quota/quota_settings.h"
#include "storage/browser/quota/special_storage_policy.h"
#include "third_party/blink/public/mojom/quota/quota_manager_host.mojom-forward.h"
namespace base {
class FilePath;
class SingleThreadTaskRunner;
} // namespace base
namespace blink {
class StorageKey;
} // namespace blink
namespace storage {
class QuotaManager;
class SpecialStoragePolicy;
} // namespace storage
namespace content {
class QuotaManagerHost;
// Owns the Quota sub-system for a StoragePartition.
//
// Each StoragePartition instance owns exactly one instance of QuotaContext.
//
// The reference counting is an unfortunate consequence of the need to interact
// with QuotaManager on the I/O thread, and will probably disappear when
// QuotaManager moves to the Storage Service.
class QuotaContext : public base::RefCountedDeleteOnSequence<QuotaContext> {
public:
QuotaContext(
bool is_incognito,
const base::FilePath& profile_path,
scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy,
storage::GetQuotaSettingsFunc get_settings_function);
QuotaContext(const QuotaContext&) = delete;
QuotaContext& operator=(const QuotaContext&) = delete;
storage::QuotaManager* quota_manager() { return quota_manager_.get(); }
// Must be called from the UI thread.
void BindQuotaManagerHost(
const blink::StorageKey& storage_key,
mojo::PendingReceiver<blink::mojom::QuotaManagerHost> receiver);
void OverrideQuotaManagerForTesting(
scoped_refptr<storage::QuotaManager> new_manager);
private:
friend class base::RefCountedDeleteOnSequence<QuotaContext>;
friend class base::DeleteHelper<QuotaContext>;
~QuotaContext();
void BindQuotaManagerHostOnIOThread(
const blink::StorageKey& storage_key,
mojo::PendingReceiver<blink::mojom::QuotaManagerHost> receiver);
// QuotaManager runs on the IO thread, so mojo receivers must be bound there.
const scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
// Owning reference for the QuotaManager.
//
// This is not const because of OverrideQuotaManagerForTesting().
scoped_refptr<storage::QuotaManager> quota_manager_;
// Only accessed on the IO thread.
mojo::ReceiverSet<blink::mojom::QuotaManagerHost,
std::unique_ptr<QuotaManagerHost>>
receivers_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace content
#endif // CONTENT_BROWSER_QUOTA_QUOTA_CONTEXT_H_
|
