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 static inline void os_set_proc_name(const char *dummy) {} 66 static inline int os_parse_cmd_args(int index, const char *optarg) { return -1; } 67 void os_set_line_buffering(void); 68 void os_setup_early_signal_handling(void); 69 70 int getpagesize(void); 71 72 #if !defined(EPROTONOSUPPORT) 73 # define EPROTONOSUPPORT EINVAL 74 #endif 75 76 static inline int os_set_daemonize(bool d) 77 { 78 if (d) { 79 return -ENOTSUP; 80 } 81 return 0; 82 } 83 84 static inline bool is_daemonized(void) 85 { 86 return false; 87 } 88 89 static inline int os_mlock(void) 90 { 91 return -ENOSYS; 92 } 93 94 #define fsync _commit 95 96 #if !defined(lseek) 97 # define lseek _lseeki64 98 #endif 99 100 int qemu_ftruncate64(int, int64_t); 101 102 #if !defined(ftruncate) 103 # define ftruncate qemu_ftruncate64 104 #endif 105 106 static inline char *realpath(const char *path, char *resolved_path) 107 { 108 _fullpath(resolved_path, path, _MAX_PATH); 109 return resolved_path; 110 } 111 112 /* ??? Mingw appears to export _lock_file and _unlock_file as the functions 113 * with which to lock a stdio handle. But something is wrong in the markup, 114 * either in the header or the library, such that we get undefined references 115 * to "_imp___lock_file" etc when linking. Since we seem to have no other 116 * alternative, and the usage within the logging functions isn't critical, 117 * ignore FILE locking. 118 */ 119 120 static inline void qemu_flockfile(FILE *f) 121 { 122 } 123 124 static inline void qemu_funlockfile(FILE *f) 125 { 126 } 127 128 /* We wrap all the sockets functions so that we can 129 * set errno based on WSAGetLastError() 130 */ 131 132 #undef connect 133 #define connect qemu_connect_wrap 134 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 135 socklen_t addrlen); 136 137 #undef listen 138 #define listen qemu_listen_wrap 139 int qemu_listen_wrap(int sockfd, int backlog); 140 141 #undef bind 142 #define bind qemu_bind_wrap 143 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 144 socklen_t addrlen); 145 146 #undef socket 147 #define socket qemu_socket_wrap 148 int qemu_socket_wrap(int domain, int type, int protocol); 149 150 #undef accept 151 #define accept qemu_accept_wrap 152 int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 153 socklen_t *addrlen); 154 155 #undef shutdown 156 #define shutdown qemu_shutdown_wrap 157 int qemu_shutdown_wrap(int sockfd, int how); 158 159 #undef ioctlsocket 160 #define ioctlsocket qemu_ioctlsocket_wrap 161 int qemu_ioctlsocket_wrap(int fd, int req, void *val); 162 163 #undef closesocket 164 #define closesocket qemu_closesocket_wrap 165 int qemu_closesocket_wrap(int fd); 166 167 #undef getsockopt 168 #define getsockopt qemu_getsockopt_wrap 169 int qemu_getsockopt_wrap(int sockfd, int level, int optname, 170 void *optval, socklen_t *optlen); 171 172 #undef setsockopt 173 #define setsockopt qemu_setsockopt_wrap 174 int qemu_setsockopt_wrap(int sockfd, int level, int optname, 175 const void *optval, socklen_t optlen); 176 177 #undef getpeername 178 #define getpeername qemu_getpeername_wrap 179 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 180 socklen_t *addrlen); 181 182 #undef getsockname 183 #define getsockname qemu_getsockname_wrap 184 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 185 socklen_t *addrlen); 186 187 #undef send 188 #define send qemu_send_wrap 189 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 190 191 #undef sendto 192 #define sendto qemu_sendto_wrap 193 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 194 const struct sockaddr *addr, socklen_t addrlen); 195 196 #undef recv 197 #define recv qemu_recv_wrap 198 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 199 200 #undef recvfrom 201 #define recvfrom qemu_recvfrom_wrap 202 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 203 struct sockaddr *addr, socklen_t *addrlen); 204 205 #ifdef __cplusplus 206 } 207 #endif 208 209 #endif 210