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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_quota_filestreams_h__
#define mozilla_dom_quota_filestreams_h__
// Local includes
#include "Client.h"
// Global includes
#include <cstdint>
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/quota/CommonMetadata.h"
#include "mozilla/dom/quota/PersistenceType.h"
#include "mozilla/dom/quota/QuotaObject.h"
#include "nsFileStreams.h"
#include "nsISupports.h"
#include "nscore.h"
class nsIFile;
namespace mozilla {
class Runnable;
}
namespace mozilla::dom::quota {
class QuotaObject;
template <class FileStreamBase>
class FileQuotaStream : public FileStreamBase {
public:
// nsFileStreamBase override
NS_IMETHOD
SetEOF() override;
NS_IMETHOD
Close() override;
protected:
FileQuotaStream(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType)
: mPersistenceType(aPersistenceType),
mOriginMetadata(aOriginMetadata),
mClientType(aClientType),
mDeserialized(false) {}
FileQuotaStream()
: mPersistenceType(PERSISTENCE_TYPE_INVALID),
mClientType(Client::TYPE_MAX),
mDeserialized(true) {}
~FileQuotaStream() { Close(); }
// nsFileStreamBase override
virtual nsresult DoOpen() override;
PersistenceType mPersistenceType;
OriginMetadata mOriginMetadata;
Client::Type mClientType;
RefPtr<QuotaObject> mQuotaObject;
const bool mDeserialized;
};
template <class FileStreamBase>
class FileQuotaStreamWithWrite : public FileQuotaStream<FileStreamBase> {
public:
// nsFileStreamBase override
NS_IMETHOD
Write(const char* aBuf, uint32_t aCount, uint32_t* _retval) override;
protected:
FileQuotaStreamWithWrite(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType)
: FileQuotaStream<FileStreamBase>(aPersistenceType, aOriginMetadata,
aClientType) {}
FileQuotaStreamWithWrite() = default;
};
class FileInputStream : public FileQuotaStream<nsFileInputStream> {
public:
NS_INLINE_DECL_REFCOUNTING_INHERITED(FileInputStream,
FileQuotaStream<nsFileInputStream>)
FileInputStream(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType)
: FileQuotaStream<nsFileInputStream>(aPersistenceType, aOriginMetadata,
aClientType) {}
private:
virtual ~FileInputStream() { Close(); }
};
class FileOutputStream : public FileQuotaStreamWithWrite<nsFileOutputStream> {
public:
NS_INLINE_DECL_REFCOUNTING_INHERITED(
FileOutputStream, FileQuotaStreamWithWrite<nsFileOutputStream>);
FileOutputStream(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType)
: FileQuotaStreamWithWrite<nsFileOutputStream>(
aPersistenceType, aOriginMetadata, aClientType) {}
private:
virtual ~FileOutputStream() { Close(); }
};
// FileRandomAccessStream type is serializable, but only in a restricted
// manner. The type is only safe to serialize in the parent process and only
// when the type hasn't been previously deserialized. So the type can be
// serialized in the parent process and desrialized in a child process or it
// can be serialized in the parent process and deserialized in the parent
// process as well (non-e10s mode). The same type can never be
// serialized/deserialized more than once.
class FileRandomAccessStream
: public FileQuotaStreamWithWrite<nsFileRandomAccessStream> {
public:
NS_INLINE_DECL_REFCOUNTING_INHERITED(
FileRandomAccessStream,
FileQuotaStreamWithWrite<nsFileRandomAccessStream>)
FileRandomAccessStream(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType)
: FileQuotaStreamWithWrite<nsFileRandomAccessStream>(
aPersistenceType, aOriginMetadata, aClientType) {}
FileRandomAccessStream() = default;
// nsFileRandomAccessStream override
// Serialize this FileRandomAccessStream. This method works only in the
// parent process and only with streams which haven't been previously
// deserialized.
mozilla::ipc::RandomAccessStreamParams Serialize(
nsIInterfaceRequestor* aCallbacks) override;
// Deserialize this FileRandomAccessStream. This method works in both the
// child and parent.
bool Deserialize(mozilla::ipc::RandomAccessStreamParams& aParams) override;
private:
virtual ~FileRandomAccessStream() { Close(); }
};
Result<MovingNotNull<nsCOMPtr<nsIInputStream>>, nsresult> CreateFileInputStream(
PersistenceType aPersistenceType, const OriginMetadata& aOriginMetadata,
Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags = -1,
int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
Result<MovingNotNull<nsCOMPtr<nsIOutputStream>>, nsresult>
CreateFileOutputStream(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType, nsIFile* aFile,
int32_t aIOFlags = -1, int32_t aPerm = -1,
int32_t aBehaviorFlags = 0);
Result<MovingNotNull<nsCOMPtr<nsIRandomAccessStream>>, nsresult>
CreateFileRandomAccessStream(PersistenceType aPersistenceType,
const OriginMetadata& aOriginMetadata,
Client::Type aClientType, nsIFile* aFile,
int32_t aIOFlags = -1, int32_t aPerm = -1,
int32_t aBehaviorFlags = 0);
} // namespace mozilla::dom::quota
#endif /* mozilla_dom_quota_filestreams_h__ */
|
