1 /*
2     Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
3 
4     This file is part of libzmq, the ZeroMQ core engine in C++.
5 
6     libzmq is free software; you can redistribute it and/or modify it under
7     the terms of the GNU Lesser General Public License (LGPL) as published
8     by the Free Software Foundation; either version 3 of the License, or
9     (at your option) any later version.
10 
11     As a special exception, the Contributors give you permission to link
12     this library with independent modules to produce an executable,
13     regardless of the license terms of these independent modules, and to
14     copy and distribute the resulting executable under terms of your choice,
15     provided that you also meet, for each linked independent module, the
16     terms and conditions of the license of that module. An independent
17     module is a module which is not derived from or based on this library.
18     If you modify this library, you must extend this exception to your
19     version of the library.
20 
21     libzmq is distributed in the hope that it will be useful, but WITHOUT
22     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
23     FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
24     License for more details.
25 
26     You should have received a copy of the GNU Lesser General Public License
27     along with this program.  If not, see <http://www.gnu.org/licenses/>.
28 */
29 
30 #ifndef __ZMQ_WINDOWS_HPP_INCLUDED__
31 #define __ZMQ_WINDOWS_HPP_INCLUDED__
32 
33 #ifndef _CRT_SECURE_NO_WARNINGS
34 #define _CRT_SECURE_NO_WARNINGS
35 #endif
36 #ifndef NOMINMAX
37 #define NOMINMAX // Macros min(a,b) and max(a,b)
38 #endif
39 
40 //  Set target version to Windows Server 2008, Windows Vista or higher.
41 //  Windows XP (0x0501) is supported but without client & server socket types.
42 #if !defined _WIN32_WINNT && !defined ZMQ_HAVE_WINDOWS_UWP
43 #define _WIN32_WINNT 0x0600
44 #endif
45 
46 #ifdef __MINGW32__
47 //  Require Windows XP or higher with MinGW for getaddrinfo().
48 #if (_WIN32_WINNT >= 0x0501)
49 #else
50 #error You need at least Windows XP target
51 #endif
52 #endif
53 
54 #include <winsock2.h>
55 #include <windows.h>
56 #include <mswsock.h>
57 #include <iphlpapi.h>
58 
59 #if !defined __MINGW32__
60 #include <mstcpip.h>
61 #endif
62 
63 //  Workaround missing mstcpip.h in mingw32 (MinGW64 provides this)
64 //  __MINGW64_VERSION_MAJOR is only defined when using in mingw-w64
65 #if defined __MINGW32__ && !defined SIO_KEEPALIVE_VALS                         \
66   && !defined __MINGW64_VERSION_MAJOR
67 struct tcp_keepalive
68 {
69     u_long onoff;
70     u_long keepalivetime;
71     u_long keepaliveinterval;
72 };
73 #define SIO_KEEPALIVE_VALS _WSAIOW (IOC_VENDOR, 4)
74 #endif
75 
76 #include <ws2tcpip.h>
77 #include <ipexport.h>
78 #if !defined _WIN32_WCE
79 #include <process.h>
80 #endif
81 
82 #if defined ZMQ_IOTHREAD_POLLER_USE_POLL || defined ZMQ_POLL_BASED_ON_POLL
poll(struct pollfd * pfd,unsigned long nfds,int timeout)83 static inline int poll (struct pollfd *pfd, unsigned long nfds, int timeout)
84 {
85     return WSAPoll (pfd, nfds, timeout);
86 }
87 #endif
88 
89 //  In MinGW environment AI_NUMERICSERV is not defined.
90 #ifndef AI_NUMERICSERV
91 #define AI_NUMERICSERV 0x0400
92 #endif
93 #endif
94 
95 //  In MSVC prior to v14, snprintf is not available
96 //  The closest implementation is the _snprintf_s function
97 #if defined(_MSC_VER) && _MSC_VER < 1900
98 #define snprintf(buffer_, count_, format_, ...)                                \
99     _snprintf_s (buffer_, count_, _TRUNCATE, format_, __VA_ARGS__)
100 #endif
101