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
|
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_FILESYSTEM_FILE_IMPL_H_
#define COMPONENTS_FILESYSTEM_FILE_IMPL_H_
#include <stdint.h>
#include "base/files/file.h"
#include "base/files/scoped_file.h"
#include "base/macros.h"
#include "build/build_config.h"
#include "components/filesystem/public/interfaces/directory.mojom.h"
#include "mojo/public/cpp/bindings/interface_request.h"
namespace base {
class FilePath;
}
namespace filesystem {
class LockTable;
class SharedTempDir;
class FileImpl : public mojom::File {
public:
FileImpl(const base::FilePath& path,
uint32_t flags,
scoped_refptr<SharedTempDir> temp_dir,
scoped_refptr<LockTable> lock_table);
FileImpl(const base::FilePath& path,
base::File file,
scoped_refptr<SharedTempDir> temp_dir,
scoped_refptr<LockTable> lock_table);
~FileImpl() override;
// Returns whether the underlying file handle is valid.
bool IsValid() const;
#if !defined(OS_FUCHSIA)
// Attempts to perform the native operating system's locking operations on
// the internal mojom::File handle. Not supported on Fuchsia.
base::File::Error RawLockFile();
base::File::Error RawUnlockFile();
#endif // !OS_FUCHSIA
const base::FilePath& path() const { return path_; }
// |File| implementation:
void Close(CloseCallback callback) override;
void Read(uint32_t num_bytes_to_read,
int64_t offset,
mojom::Whence whence,
ReadCallback callback) override;
void Write(const std::vector<uint8_t>& bytes_to_write,
int64_t offset,
mojom::Whence whence,
WriteCallback callback) override;
void Tell(TellCallback callback) override;
void Seek(int64_t offset,
mojom::Whence whence,
SeekCallback callback) override;
void Stat(StatCallback callback) override;
void Truncate(int64_t size, TruncateCallback callback) override;
void Touch(mojom::TimespecOrNowPtr atime,
mojom::TimespecOrNowPtr mtime,
TouchCallback callback) override;
void Dup(mojom::FileRequest file, DupCallback callback) override;
void Flush(FlushCallback callback) override;
void Lock(LockCallback callback) override;
void Unlock(UnlockCallback callback) override;
void AsHandle(AsHandleCallback callback) override;
private:
base::File file_;
base::FilePath path_;
scoped_refptr<SharedTempDir> temp_dir_;
scoped_refptr<LockTable> lock_table_;
DISALLOW_COPY_AND_ASSIGN(FileImpl);
};
} // namespace filesystem
#endif // COMPONENTS_FILESYSTEM_FILE_IMPL_H_
|
