Merge tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
[qemu.git] / include / sysemu / os-win32.h
1 /*
2 * win32 specific declarations
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25
26 #ifndef QEMU_OS_WIN32_H
27 #define QEMU_OS_WIN32_H
28
29 #include <winsock2.h>
30 #include <windows.h>
31 #include <ws2tcpip.h>
32
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36
37 #if defined(_WIN64)
38 /* On w64, setjmp is implemented by _setjmp which needs a second parameter.
39 * If this parameter is NULL, longjump does no stack unwinding.
40 * That is what we need for QEMU. Passing the value of register rsp (default)
41 * lets longjmp try a stack unwinding which will crash with generated code. */
42 # undef setjmp
43 # define setjmp(env) _setjmp(env, NULL)
44 #endif
45 /* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify
46 * "longjmp and don't touch the signal masks". Since we know that the
47 * savemask parameter will always be zero we can safely define these
48 * in terms of setjmp/longjmp on Win32.
49 */
50 #define sigjmp_buf jmp_buf
51 #define sigsetjmp(env, savemask) setjmp(env)
52 #define siglongjmp(env, val) longjmp(env, val)
53
54 /* Missing POSIX functions. Don't use MinGW-w64 macros. */
55 #ifndef _POSIX_THREAD_SAFE_FUNCTIONS
56 #undef gmtime_r
57 struct tm *gmtime_r(const time_t *timep, struct tm *result);
58 #undef localtime_r
59 struct tm *localtime_r(const time_t *timep, struct tm *result);
60 #endif /* _POSIX_THREAD_SAFE_FUNCTIONS */
61
62 static inline void os_setup_signal_handling(void) {}
63 static inline void os_daemonize(void) {}
64 static inline void os_setup_post(void) {}
65 void os_set_line_buffering(void);
66 static inline void os_set_proc_name(const char *dummy) {}
67
68 int getpagesize(void);
69
70 #if !defined(EPROTONOSUPPORT)
71 # define EPROTONOSUPPORT EINVAL
72 #endif
73
74 typedef struct {
75 long tv_sec;
76 long tv_usec;
77 } qemu_timeval;
78 int qemu_gettimeofday(qemu_timeval *tp);
79
80 static inline bool is_daemonized(void)
81 {
82 return false;
83 }
84
85 static inline int os_mlock(void)
86 {
87 return -ENOSYS;
88 }
89
90 #define fsync _commit
91
92 #if !defined(lseek)
93 # define lseek _lseeki64
94 #endif
95
96 int qemu_ftruncate64(int, int64_t);
97
98 #if !defined(ftruncate)
99 # define ftruncate qemu_ftruncate64
100 #endif
101
102 static inline char *realpath(const char *path, char *resolved_path)
103 {
104 _fullpath(resolved_path, path, _MAX_PATH);
105 return resolved_path;
106 }
107
108 /* ??? Mingw appears to export _lock_file and _unlock_file as the functions
109 * with which to lock a stdio handle. But something is wrong in the markup,
110 * either in the header or the library, such that we get undefined references
111 * to "_imp___lock_file" etc when linking. Since we seem to have no other
112 * alternative, and the usage within the logging functions isn't critical,
113 * ignore FILE locking.
114 */
115
116 static inline void qemu_flockfile(FILE *f)
117 {
118 }
119
120 static inline void qemu_funlockfile(FILE *f)
121 {
122 }
123
124 /* We wrap all the sockets functions so that we can
125 * set errno based on WSAGetLastError()
126 */
127
128 #undef connect
129 #define connect qemu_connect_wrap
130 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr,
131 socklen_t addrlen);
132
133 #undef listen
134 #define listen qemu_listen_wrap
135 int qemu_listen_wrap(int sockfd, int backlog);
136
137 #undef bind
138 #define bind qemu_bind_wrap
139 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr,
140 socklen_t addrlen);
141
142 #undef socket
143 #define socket qemu_socket_wrap
144 int qemu_socket_wrap(int domain, int type, int protocol);
145
146 #undef accept
147 #define accept qemu_accept_wrap
148 int qemu_accept_wrap(int sockfd, struct sockaddr *addr,
149 socklen_t *addrlen);
150
151 #undef shutdown
152 #define shutdown qemu_shutdown_wrap
153 int qemu_shutdown_wrap(int sockfd, int how);
154
155 #undef ioctlsocket
156 #define ioctlsocket qemu_ioctlsocket_wrap
157 int qemu_ioctlsocket_wrap(int fd, int req, void *val);
158
159 #undef closesocket
160 #define closesocket qemu_closesocket_wrap
161 int qemu_closesocket_wrap(int fd);
162
163 #undef getsockopt
164 #define getsockopt qemu_getsockopt_wrap
165 int qemu_getsockopt_wrap(int sockfd, int level, int optname,
166 void *optval, socklen_t *optlen);
167
168 #undef setsockopt
169 #define setsockopt qemu_setsockopt_wrap
170 int qemu_setsockopt_wrap(int sockfd, int level, int optname,
171 const void *optval, socklen_t optlen);
172
173 #undef getpeername
174 #define getpeername qemu_getpeername_wrap
175 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr,
176 socklen_t *addrlen);
177
178 #undef getsockname
179 #define getsockname qemu_getsockname_wrap
180 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr,
181 socklen_t *addrlen);
182
183 #undef send
184 #define send qemu_send_wrap
185 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags);
186
187 #undef sendto
188 #define sendto qemu_sendto_wrap
189 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags,
190 const struct sockaddr *addr, socklen_t addrlen);
191
192 #undef recv
193 #define recv qemu_recv_wrap
194 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags);
195
196 #undef recvfrom
197 #define recvfrom qemu_recvfrom_wrap
198 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags,
199 struct sockaddr *addr, socklen_t *addrlen);
200
201 #ifdef __cplusplus
202 }
203 #endif
204
205 #endif