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 static inline int os_set_daemonize(bool d) 75 { 76 if (d) { 77 return -ENOTSUP; 78 } 79 return 0; 80 } 81 82 static inline bool is_daemonized(void) 83 { 84 return false; 85 } 86 87 static inline int os_mlock(void) 88 { 89 return -ENOSYS; 90 } 91 92 #define fsync _commit 93 94 #if !defined(lseek) 95 # define lseek _lseeki64 96 #endif 97 98 int qemu_ftruncate64(int, int64_t); 99 100 #if !defined(ftruncate) 101 # define ftruncate qemu_ftruncate64 102 #endif 103 104 static inline char *realpath(const char *path, char *resolved_path) 105 { 106 _fullpath(resolved_path, path, _MAX_PATH); 107 return resolved_path; 108 } 109 110 /* ??? Mingw appears to export _lock_file and _unlock_file as the functions 111 * with which to lock a stdio handle. But something is wrong in the markup, 112 * either in the header or the library, such that we get undefined references 113 * to "_imp___lock_file" etc when linking. Since we seem to have no other 114 * alternative, and the usage within the logging functions isn't critical, 115 * ignore FILE locking. 116 */ 117 118 static inline void qemu_flockfile(FILE *f) 119 { 120 } 121 122 static inline void qemu_funlockfile(FILE *f) 123 { 124 } 125 126 /* We wrap all the sockets functions so that we can 127 * set errno based on WSAGetLastError() 128 */ 129 130 #undef connect 131 #define connect qemu_connect_wrap 132 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 133 socklen_t addrlen); 134 135 #undef listen 136 #define listen qemu_listen_wrap 137 int qemu_listen_wrap(int sockfd, int backlog); 138 139 #undef bind 140 #define bind qemu_bind_wrap 141 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 142 socklen_t addrlen); 143 144 #undef socket 145 #define socket qemu_socket_wrap 146 int qemu_socket_wrap(int domain, int type, int protocol); 147 148 #undef accept 149 #define accept qemu_accept_wrap 150 int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 151 socklen_t *addrlen); 152 153 #undef shutdown 154 #define shutdown qemu_shutdown_wrap 155 int qemu_shutdown_wrap(int sockfd, int how); 156 157 #undef ioctlsocket 158 #define ioctlsocket qemu_ioctlsocket_wrap 159 int qemu_ioctlsocket_wrap(int fd, int req, void *val); 160 161 #undef closesocket 162 #define closesocket qemu_closesocket_wrap 163 int qemu_closesocket_wrap(int fd); 164 165 #undef getsockopt 166 #define getsockopt qemu_getsockopt_wrap 167 int qemu_getsockopt_wrap(int sockfd, int level, int optname, 168 void *optval, socklen_t *optlen); 169 170 #undef setsockopt 171 #define setsockopt qemu_setsockopt_wrap 172 int qemu_setsockopt_wrap(int sockfd, int level, int optname, 173 const void *optval, socklen_t optlen); 174 175 #undef getpeername 176 #define getpeername qemu_getpeername_wrap 177 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 178 socklen_t *addrlen); 179 180 #undef getsockname 181 #define getsockname qemu_getsockname_wrap 182 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 183 socklen_t *addrlen); 184 185 #undef send 186 #define send qemu_send_wrap 187 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 188 189 #undef sendto 190 #define sendto qemu_sendto_wrap 191 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 192 const struct sockaddr *addr, socklen_t addrlen); 193 194 #undef recv 195 #define recv qemu_recv_wrap 196 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 197 198 #undef recvfrom 199 #define recvfrom qemu_recvfrom_wrap 200 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 201 struct sockaddr *addr, socklen_t *addrlen); 202 203 #ifdef __cplusplus 204 } 205 #endif 206 207 #endif 208