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 <windows.h>
  30 #include <winsock2.h>
  31
  32 /* Workaround for older versions of MinGW. */
  33 #ifndef ECONNREFUSED
  34 # define ECONNREFUSED WSAECONNREFUSED
  35 #endif
  36 #ifndef EINPROGRESS
  37 # define EINPROGRESS  WSAEINPROGRESS
  38 #endif
  39 #ifndef EHOSTUNREACH
  40 # define EHOSTUNREACH WSAEHOSTUNREACH
  41 #endif
  42 #ifndef EINTR
  43 # define EINTR        WSAEINTR
  44 #endif
  45 #ifndef EINPROGRESS
  46 # define EINPROGRESS  WSAEINPROGRESS
  47 #endif
  48 #ifndef ENETUNREACH
  49 # define ENETUNREACH  WSAENETUNREACH
  50 #endif
  51 #ifndef ENOTCONN
  52 # define ENOTCONN     WSAENOTCONN
  53 #endif
  54 #ifndef EWOULDBLOCK
  55 # define EWOULDBLOCK  WSAEWOULDBLOCK
  56 #endif
  57
  58 #if defined(_WIN64)
  59 /* On w64, setjmp is implemented by _setjmp which needs a second parameter.
  60  * If this parameter is NULL, longjump does no stack unwinding.
  61  * That is what we need for QEMU. Passing the value of register rsp (default)
  62  * lets longjmp try a stack unwinding which will crash with generated code. */
  63 # undef setjmp
  64 # define setjmp(env) _setjmp(env, NULL)
  65 #endif
  66 /* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify
  67  * "longjmp and don't touch the signal masks". Since we know that the
  68  * savemask parameter will always be zero we can safely define these
  69  * in terms of setjmp/longjmp on Win32.
  70  */
  71 #define sigjmp_buf jmp_buf
  72 #define sigsetjmp(env, savemask) setjmp(env)
  73 #define siglongjmp(env, val) longjmp(env, val)
  74
  75 /* Missing POSIX functions. Don't use MinGW-w64 macros. */
  76 #undef gmtime_r
  77 struct tm *gmtime_r(const time_t *timep, struct tm *result);
  78 #undef localtime_r
  79 struct tm *localtime_r(const time_t *timep, struct tm *result);
  80
  81
  82 static inline void os_setup_signal_handling(void) {}
  83 static inline void os_daemonize(void) {}
  84 static inline void os_setup_post(void) {}
  85 void os_set_line_buffering(void);
  86 static inline void os_set_proc_name(const char *dummy) {}
  87
  88 size_t getpagesize(void);
  89
  90 #if !defined(EPROTONOSUPPORT)
  91 # define EPROTONOSUPPORT EINVAL
  92 #endif
  93
  94 int setenv(const char *name, const char *value, int overwrite);
  95
  96 typedef struct {
  97     long tv_sec;
  98     long tv_usec;
  99 } qemu_timeval;
 100 int qemu_gettimeofday(qemu_timeval *tp);
 101
 102 static inline bool is_daemonized(void)
 103 {
 104     return false;
 105 }
 106
 107 static inline int os_mlock(void)
 108 {
 109     return -ENOSYS;
 110 }
 111
 112 #define fsync _commit
 113
 114 #if !defined(lseek)
 115 # define lseek _lseeki64
 116 #endif
 117
 118 int qemu_ftruncate64(int, int64_t);
 119
 120 #if !defined(ftruncate)
 121 # define ftruncate qemu_ftruncate64
 122 #endif
 123
 124 static inline char *realpath(const char *path, char *resolved_path)
 125 {
 126     _fullpath(resolved_path, path, _MAX_PATH);
 127     return resolved_path;
 128 }
 129
 130 #endif