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 /* 113 * Older versions of MinGW do not import _lock_file and _unlock_file properly. 114 * This was fixed for v6.0.0 with commit b48e3ac8969d. 115 */ 116 static inline void qemu_flockfile(FILE *f) 117 { 118 #ifdef HAVE__LOCK_FILE 119 _lock_file(f); 120 #endif 121 } 122 123 static inline void qemu_funlockfile(FILE *f) 124 { 125 #ifdef HAVE__LOCK_FILE 126 _unlock_file(f); 127 #endif 128 } 129 130 /* We wrap all the sockets functions so that we can 131 * set errno based on WSAGetLastError() 132 */ 133 134 #undef connect 135 #define connect qemu_connect_wrap 136 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 137 socklen_t addrlen); 138 139 #undef listen 140 #define listen qemu_listen_wrap 141 int qemu_listen_wrap(int sockfd, int backlog); 142 143 #undef bind 144 #define bind qemu_bind_wrap 145 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 146 socklen_t addrlen); 147 148 #undef socket 149 #define socket qemu_socket_wrap 150 int qemu_socket_wrap(int domain, int type, int protocol); 151 152 #undef accept 153 #define accept qemu_accept_wrap 154 int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 155 socklen_t *addrlen); 156 157 #undef shutdown 158 #define shutdown qemu_shutdown_wrap 159 int qemu_shutdown_wrap(int sockfd, int how); 160 161 #undef ioctlsocket 162 #define ioctlsocket qemu_ioctlsocket_wrap 163 int qemu_ioctlsocket_wrap(int fd, int req, void *val); 164 165 #undef closesocket 166 #define closesocket qemu_closesocket_wrap 167 int qemu_closesocket_wrap(int fd); 168 169 #undef getsockopt 170 #define getsockopt qemu_getsockopt_wrap 171 int qemu_getsockopt_wrap(int sockfd, int level, int optname, 172 void *optval, socklen_t *optlen); 173 174 #undef setsockopt 175 #define setsockopt qemu_setsockopt_wrap 176 int qemu_setsockopt_wrap(int sockfd, int level, int optname, 177 const void *optval, socklen_t optlen); 178 179 #undef getpeername 180 #define getpeername qemu_getpeername_wrap 181 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 182 socklen_t *addrlen); 183 184 #undef getsockname 185 #define getsockname qemu_getsockname_wrap 186 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 187 socklen_t *addrlen); 188 189 #undef send 190 #define send qemu_send_wrap 191 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 192 193 #undef sendto 194 #define sendto qemu_sendto_wrap 195 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 196 const struct sockaddr *addr, socklen_t addrlen); 197 198 #undef recv 199 #define recv qemu_recv_wrap 200 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 201 202 #undef recvfrom 203 #define recvfrom qemu_recvfrom_wrap 204 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 205 struct sockaddr *addr, socklen_t *addrlen); 206 207 #ifdef __cplusplus 208 } 209 #endif 210 211 #endif 212