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
|
/*
Userspace Virtual Filesystem
Copyright (C) 2024. All rights reserved.
This file is part of usvfs.
usvfs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
usvfs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with usvfs. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <format>
#include <type_traits>
#include "ntdll_declarations.h"
// formatters for standard types
namespace usvfs::log
{
std::string to_string(LPCWSTR value);
std::string to_string(PCUNICODE_STRING value);
} // namespace usvfs::log
template <class Enum, class CharT>
requires std::is_enum_v<Enum>
struct std::formatter<Enum, CharT> : std::formatter<std::underlying_type_t<Enum>, CharT>
{
template <class FmtContext>
FmtContext::iterator format(Enum v, FmtContext& ctx) const
{
return std::formatter<std::underlying_type_t<Enum>, CharT>::format(
static_cast<std::underlying_type_t<Enum>>(v), ctx);
}
};
template <>
struct std::formatter<LPCWSTR, char> : std::formatter<std::string, char>
{
template <class FmtContext>
FmtContext::iterator format(LPCWSTR v, FmtContext& ctx) const
{
return std::formatter<std::string, char>::format(usvfs::log::to_string(v), ctx);
}
};
template <>
struct std::formatter<std::wstring, char> : std::formatter<LPCWSTR, char>
{
template <class FmtContext>
FmtContext::iterator format(const std::wstring& v, FmtContext& ctx) const
{
return std::formatter<LPCWSTR, char>::format(v.c_str(), ctx);
}
};
template <>
struct std::formatter<PCUNICODE_STRING, char> : std::formatter<std::string, char>
{
template <class FmtContext>
FmtContext::iterator format(PCUNICODE_STRING v, FmtContext& ctx) const
{
return std::formatter<std::string, char>::format(usvfs::log::to_string(v), ctx);
}
};
template <>
struct std::formatter<UNICODE_STRING, char> : std::formatter<std::string, char>
{
template <class FmtContext>
FmtContext::iterator format(UNICODE_STRING v, FmtContext& ctx) const
{
return std::formatter<std::string, char>::format(usvfs::log::to_string(&v), ctx);
}
};
template <class Pointer>
requires(std::is_pointer_v<Pointer> && !std::is_same_v<Pointer, const char*> &&
!std::is_same_v<Pointer, char*> && !std::is_same_v<Pointer, const void*> &&
!std::is_same_v<Pointer, void*>)
struct std::formatter<Pointer, char> : std::formatter<const void*, char>
{
template <class FmtContext>
FmtContext::iterator format(Pointer v, FmtContext& ctx) const
{
return std::formatter<const void*, char>::format(v, ctx);
}
};
namespace usvfs::log
{
/**
* a small helper class to wrap any object. The whole point is to give us a way
* to ensure our own operator<< is used in addParam calls
*/
template <typename T>
class Wrap
{
public:
explicit Wrap(const T& data) : m_Data(data) {}
Wrap(Wrap<T>&& reference) : m_Data(std::move(reference.m_Data)) {}
Wrap(const Wrap<T>& reference) = delete;
Wrap<T>& operator=(const Wrap<T>& reference) = delete;
private:
friend struct ::std::formatter<Wrap<T>, char>;
const T& m_Data;
};
template <typename T>
Wrap<T> wrap(const T& data)
{
return Wrap<T>(data);
}
} // namespace usvfs::log
template <>
struct std::formatter<usvfs::log::Wrap<DWORD>, char> : std::formatter<DWORD, char>
{
template <class FmtContext>
FmtContext::iterator format(const usvfs::log::Wrap<DWORD>& v, FmtContext& ctx) const
{
return std::format_to(ctx.out(), "{:x}", v.m_Data);
}
};
template <>
struct std::formatter<usvfs::log::Wrap<NTSTATUS>, char> : std::formatter<NTSTATUS, char>
{
template <class FmtContext>
FmtContext::iterator format(const usvfs::log::Wrap<NTSTATUS>& v,
FmtContext& ctx) const
{
switch (v.m_Data) {
case 0x00000000:
return std::format_to(ctx.out(), "ok");
case 0xC0000022:
return std::format_to(ctx.out(), "access denied");
case 0xC0000035:
return std::format_to(ctx.out(), "exists already");
}
return std::format_to(ctx.out(), "err {:x}", v.m_Data);
}
};
|
