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
|
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <string_view>
#include <boost/container/flat_map.hpp>
#include "core/file_sys/mode.h"
#include "core/file_sys/vfs.h"
namespace Common::FS {
class IOFile;
}
namespace FileSys {
class RealVfsFilesystem : public VfsFilesystem {
public:
RealVfsFilesystem();
~RealVfsFilesystem() override;
std::string GetName() const override;
bool IsReadable() const override;
bool IsWritable() const override;
VfsEntryType GetEntryType(std::string_view path) const override;
VirtualFile OpenFile(std::string_view path, Mode perms = Mode::Read) override;
VirtualFile CreateFile(std::string_view path, Mode perms = Mode::ReadWrite) override;
VirtualFile CopyFile(std::string_view old_path, std::string_view new_path) override;
VirtualFile MoveFile(std::string_view old_path, std::string_view new_path) override;
bool DeleteFile(std::string_view path) override;
VirtualDir OpenDirectory(std::string_view path, Mode perms = Mode::Read) override;
VirtualDir CreateDirectory(std::string_view path, Mode perms = Mode::ReadWrite) override;
VirtualDir CopyDirectory(std::string_view old_path, std::string_view new_path) override;
VirtualDir MoveDirectory(std::string_view old_path, std::string_view new_path) override;
bool DeleteDirectory(std::string_view path) override;
private:
boost::container::flat_map<std::string, std::weak_ptr<Common::FS::IOFile>> cache;
};
// An implmentation of VfsFile that represents a file on the user's computer.
class RealVfsFile : public VfsFile {
friend class RealVfsDirectory;
friend class RealVfsFilesystem;
public:
~RealVfsFile() override;
std::string GetName() const override;
std::size_t GetSize() const override;
bool Resize(std::size_t new_size) override;
VirtualDir GetContainingDirectory() const override;
bool IsWritable() const override;
bool IsReadable() const override;
std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
bool Rename(std::string_view name) override;
private:
RealVfsFile(RealVfsFilesystem& base, std::shared_ptr<Common::FS::IOFile> backing,
const std::string& path, Mode perms = Mode::Read);
void Close();
RealVfsFilesystem& base;
std::shared_ptr<Common::FS::IOFile> backing;
std::string path;
std::string parent_path;
std::vector<std::string> path_components;
Mode perms;
};
// An implementation of VfsDirectory that represents a directory on the user's computer.
class RealVfsDirectory : public VfsDirectory {
friend class RealVfsFilesystem;
public:
~RealVfsDirectory() override;
VirtualFile GetFileRelative(std::string_view relative_path) const override;
VirtualDir GetDirectoryRelative(std::string_view relative_path) const override;
VirtualFile GetFile(std::string_view name) const override;
VirtualDir GetSubdirectory(std::string_view name) const override;
VirtualFile CreateFileRelative(std::string_view relative_path) override;
VirtualDir CreateDirectoryRelative(std::string_view relative_path) override;
bool DeleteSubdirectoryRecursive(std::string_view name) override;
std::vector<VirtualFile> GetFiles() const override;
std::vector<VirtualDir> GetSubdirectories() const override;
bool IsWritable() const override;
bool IsReadable() const override;
std::string GetName() const override;
VirtualDir GetParentDirectory() const override;
VirtualDir CreateSubdirectory(std::string_view name) override;
VirtualFile CreateFile(std::string_view name) override;
bool DeleteSubdirectory(std::string_view name) override;
bool DeleteFile(std::string_view name) override;
bool Rename(std::string_view name) override;
std::string GetFullPath() const override;
std::map<std::string, VfsEntryType, std::less<>> GetEntries() const override;
private:
RealVfsDirectory(RealVfsFilesystem& base, const std::string& path, Mode perms = Mode::Read);
template <typename T, typename R>
std::vector<std::shared_ptr<R>> IterateEntries() const;
RealVfsFilesystem& base;
std::string path;
std::string parent_path;
std::vector<std::string> path_components;
Mode perms;
};
} // namespace FileSys
|
