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
|
/*
* Copyright 2020-2021 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_WIN32_HRESULT_HXX
#define MPD_WIN32_HRESULT_HXX
#include "util/Compiler.h"
#include <cassert>
#include <cstdarg>
#include <cstdio>
#include <stdexcept>
#include <string_view>
#include <system_error>
#include <vector>
#include <audiopolicy.h>
constexpr std::string_view HRESULTToString(HRESULT result) {
using namespace std::literals;
switch (result) {
#define C(x) \
case x: \
return #x##sv
C(AUDCLNT_E_ALREADY_INITIALIZED);
C(AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL);
C(AUDCLNT_E_BUFFER_ERROR);
C(AUDCLNT_E_BUFFER_OPERATION_PENDING);
C(AUDCLNT_E_BUFFER_SIZE_ERROR);
C(AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED);
C(AUDCLNT_E_BUFFER_TOO_LARGE);
C(AUDCLNT_E_CPUUSAGE_EXCEEDED);
C(AUDCLNT_E_DEVICE_INVALIDATED);
C(AUDCLNT_E_DEVICE_IN_USE);
C(AUDCLNT_E_ENDPOINT_CREATE_FAILED);
C(AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED);
C(AUDCLNT_E_INVALID_DEVICE_PERIOD);
C(AUDCLNT_E_OUT_OF_ORDER);
C(AUDCLNT_E_SERVICE_NOT_RUNNING);
C(AUDCLNT_E_UNSUPPORTED_FORMAT);
C(AUDCLNT_E_WRONG_ENDPOINT_TYPE);
C(CO_E_NOTINITIALIZED);
C(E_INVALIDARG);
C(E_OUTOFMEMORY);
C(E_POINTER);
#undef C
}
return std::string_view();
}
static inline const std::error_category &hresult_category() noexcept;
class HResultCategory : public std::error_category {
public:
const char *name() const noexcept override { return "HRESULT"; }
std::string message(int Errcode) const override {
const auto msg = HRESULTToString(Errcode);
if (!msg.empty()) {
return std::string(msg);
}
char buffer[11]; // "0x12345678\0"
int size = snprintf(buffer, sizeof(buffer), "0x%1x", Errcode);
assert(2 <= size && size <= 10);
return std::string(buffer, size);
}
std::error_condition default_error_condition(int code) const noexcept override {
return std::error_condition(code, hresult_category());
}
};
static inline const std::error_category &hresult_category() noexcept {
static const HResultCategory hresult_category_instance{};
return hresult_category_instance;
}
gcc_printf(2, 3) static inline std::runtime_error
FormatHResultError(HRESULT result, const char *fmt, ...) noexcept {
std::va_list args1, args2;
va_start(args1, fmt);
va_copy(args2, args1);
const int size = vsnprintf(nullptr, 0, fmt, args1);
va_end(args1);
assert(size >= 0);
auto buffer = std::make_unique<char[]>(size + 1);
vsprintf(buffer.get(), fmt, args2);
va_end(args2);
return std::system_error(std::error_code(result, hresult_category()),
std::string(buffer.get(), size));
}
#endif
|
