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
|
/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <wtf/Assertions.h>
#include <wtf/FileSystem.h>
namespace WebCore {
class WEBCORE_EXPORT FileHandle final {
public:
FileHandle() = default;
~FileHandle();
FileHandle(const String& path, FileSystem::FileOpenMode);
FileHandle(const String& path, FileSystem::FileOpenMode, OptionSet<FileSystem::FileLockMode>);
FileHandle(FileHandle&& other);
FileHandle& operator=(FileHandle&& other);
FileHandle(const FileHandle&) = delete;
FileHandle& operator=(const FileHandle&) = delete;
explicit FileHandle(FileSystem::PlatformFileHandle);
explicit operator bool() const;
String path() const;
bool open(const String& path, FileSystem::FileOpenMode);
bool open();
int read(std::span<uint8_t> data);
int write(std::span<const uint8_t> data);
bool printf(const char* format, ...) WTF_ATTRIBUTE_PRINTF(2, 3);
void close();
FileSystem::PlatformFileHandle handle() const;
FileHandle isolatedCopy() && { return WTFMove(*this); }
private:
String m_path;
FileSystem::FileOpenMode m_mode { FileSystem::FileOpenMode::Read };
FileSystem::PlatformFileHandle m_fileHandle { FileSystem::invalidPlatformFileHandle };
OptionSet<FileSystem::FileLockMode> m_lockMode;
bool m_shouldLock { false };
};
} // namespace WebCore
|
