os-win32.h (6565B)
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 HAVE_AFUNIX_H 34 #include <afunix.h> 35 #else 36 /* 37 * Fallback definitions of things we need in afunix.h, if not available from 38 * the used Windows SDK or MinGW headers. 39 */ 40 #define UNIX_PATH_MAX 108 41 42 typedef struct sockaddr_un { 43 ADDRESS_FAMILY sun_family; 44 char sun_path[UNIX_PATH_MAX]; 45 } SOCKADDR_UN, *PSOCKADDR_UN; 46 47 #define SIO_AF_UNIX_GETPEERPID _WSAIOR(IOC_VENDOR, 256) 48 #endif 49 50 #ifdef __cplusplus 51 extern "C" { 52 #endif 53 54 #if defined(_WIN64) 55 /* On w64, setjmp is implemented by _setjmp which needs a second parameter. 56 * If this parameter is NULL, longjump does no stack unwinding. 57 * That is what we need for QEMU. Passing the value of register rsp (default) 58 * lets longjmp try a stack unwinding which will crash with generated code. */ 59 # undef setjmp 60 # define setjmp(env) _setjmp(env, NULL) 61 #endif 62 /* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify 63 * "longjmp and don't touch the signal masks". Since we know that the 64 * savemask parameter will always be zero we can safely define these 65 * in terms of setjmp/longjmp on Win32. 66 */ 67 #define sigjmp_buf jmp_buf 68 #define sigsetjmp(env, savemask) setjmp(env) 69 #define siglongjmp(env, val) longjmp(env, val) 70 71 /* Missing POSIX functions. Don't use MinGW-w64 macros. */ 72 #ifndef _POSIX_THREAD_SAFE_FUNCTIONS 73 #undef gmtime_r 74 struct tm *gmtime_r(const time_t *timep, struct tm *result); 75 #undef localtime_r 76 struct tm *localtime_r(const time_t *timep, struct tm *result); 77 #endif /* _POSIX_THREAD_SAFE_FUNCTIONS */ 78 79 static inline void os_setup_signal_handling(void) {} 80 static inline void os_daemonize(void) {} 81 static inline void os_setup_post(void) {} 82 static inline void os_set_proc_name(const char *dummy) {} 83 static inline int os_parse_cmd_args(int index, const char *optarg) { return -1; } 84 void os_set_line_buffering(void); 85 void os_setup_early_signal_handling(void); 86 87 int getpagesize(void); 88 89 #if !defined(EPROTONOSUPPORT) 90 # define EPROTONOSUPPORT EINVAL 91 #endif 92 93 static inline int os_set_daemonize(bool d) 94 { 95 if (d) { 96 return -ENOTSUP; 97 } 98 return 0; 99 } 100 101 static inline bool is_daemonized(void) 102 { 103 return false; 104 } 105 106 static inline int os_mlock(void) 107 { 108 return -ENOSYS; 109 } 110 111 #define fsync _commit 112 113 #if !defined(lseek) 114 # define lseek _lseeki64 115 #endif 116 117 int qemu_ftruncate64(int, int64_t); 118 119 #if !defined(ftruncate) 120 # define ftruncate qemu_ftruncate64 121 #endif 122 123 static inline char *realpath(const char *path, char *resolved_path) 124 { 125 _fullpath(resolved_path, path, _MAX_PATH); 126 return resolved_path; 127 } 128 129 /* 130 * Older versions of MinGW do not import _lock_file and _unlock_file properly. 131 * This was fixed for v6.0.0 with commit b48e3ac8969d. 132 */ 133 static inline void qemu_flockfile(FILE *f) 134 { 135 #ifdef HAVE__LOCK_FILE 136 _lock_file(f); 137 #endif 138 } 139 140 static inline void qemu_funlockfile(FILE *f) 141 { 142 #ifdef HAVE__LOCK_FILE 143 _unlock_file(f); 144 #endif 145 } 146 147 /* We wrap all the sockets functions so that we can 148 * set errno based on WSAGetLastError() 149 */ 150 151 #undef connect 152 #define connect qemu_connect_wrap 153 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 154 socklen_t addrlen); 155 156 #undef listen 157 #define listen qemu_listen_wrap 158 int qemu_listen_wrap(int sockfd, int backlog); 159 160 #undef bind 161 #define bind qemu_bind_wrap 162 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 163 socklen_t addrlen); 164 165 #undef socket 166 #define socket qemu_socket_wrap 167 int qemu_socket_wrap(int domain, int type, int protocol); 168 169 #undef accept 170 #define accept qemu_accept_wrap 171 int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 172 socklen_t *addrlen); 173 174 #undef shutdown 175 #define shutdown qemu_shutdown_wrap 176 int qemu_shutdown_wrap(int sockfd, int how); 177 178 #undef ioctlsocket 179 #define ioctlsocket qemu_ioctlsocket_wrap 180 int qemu_ioctlsocket_wrap(int fd, int req, void *val); 181 182 #undef closesocket 183 #define closesocket qemu_closesocket_wrap 184 int qemu_closesocket_wrap(int fd); 185 186 #undef getsockopt 187 #define getsockopt qemu_getsockopt_wrap 188 int qemu_getsockopt_wrap(int sockfd, int level, int optname, 189 void *optval, socklen_t *optlen); 190 191 #undef setsockopt 192 #define setsockopt qemu_setsockopt_wrap 193 int qemu_setsockopt_wrap(int sockfd, int level, int optname, 194 const void *optval, socklen_t optlen); 195 196 #undef getpeername 197 #define getpeername qemu_getpeername_wrap 198 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 199 socklen_t *addrlen); 200 201 #undef getsockname 202 #define getsockname qemu_getsockname_wrap 203 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 204 socklen_t *addrlen); 205 206 #undef send 207 #define send qemu_send_wrap 208 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 209 210 #undef sendto 211 #define sendto qemu_sendto_wrap 212 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 213 const struct sockaddr *addr, socklen_t addrlen); 214 215 #undef recv 216 #define recv qemu_recv_wrap 217 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 218 219 #undef recvfrom 220 #define recvfrom qemu_recvfrom_wrap 221 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 222 struct sockaddr *addr, socklen_t *addrlen); 223 224 #ifdef __cplusplus 225 } 226 #endif 227 228 #endif