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
|
/*
* Copyright 2003-2017 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_SOCKET_ERROR_HXX
#define MPD_SOCKET_ERROR_HXX
#include "Compiler.h"
#include "system/Error.hxx"
#ifdef _WIN32
#include <winsock2.h>
typedef DWORD socket_error_t;
#else
#include <errno.h>
typedef int socket_error_t;
#endif
gcc_pure
static inline socket_error_t
GetSocketError() noexcept
{
#ifdef _WIN32
return WSAGetLastError();
#else
return errno;
#endif
}
gcc_const
static inline bool
IsSocketErrorAgain(socket_error_t code) noexcept
{
#ifdef _WIN32
return code == WSAEINPROGRESS;
#else
return code == EAGAIN;
#endif
}
gcc_const
static inline bool
IsSocketErrorInterruped(socket_error_t code) noexcept
{
#ifdef _WIN32
return code == WSAEINTR;
#else
return code == EINTR;
#endif
}
gcc_const
static inline bool
IsSocketErrorClosed(socket_error_t code) noexcept
{
#ifdef _WIN32
return code == WSAECONNRESET;
#else
return code == EPIPE || code == ECONNRESET;
#endif
}
/**
* Helper class that formats a socket error message into a
* human-readable string. On Windows, a buffer is necessary for this,
* and this class hosts the buffer.
*/
class SocketErrorMessage {
#ifdef _WIN32
char msg[256];
#else
const char *const msg;
#endif
public:
explicit SocketErrorMessage(socket_error_t code=GetSocketError()) noexcept;
operator const char *() const {
return msg;
}
};
gcc_const
static inline std::system_error
MakeSocketError(socket_error_t code, const char *msg) noexcept
{
#ifdef _WIN32
return MakeLastError(code, msg);
#else
return MakeErrno(code, msg);
#endif
}
gcc_pure
static inline std::system_error
MakeSocketError(const char *msg) noexcept
{
return MakeSocketError(GetSocketError(), msg);
}
#endif
|
