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      1 /*
      2  * win32 specific declarations
      3  *
      4  * Copyright (c) 2003-2008 Fabrice Bellard
      5  * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen (at) 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 #define socket_close  winsock2_socket_close3
     30 
     31 #include <winsock2.h>
     32 #include <windows.h>
     33 
     34 #undef socket_close
     35 
     36 /* Workaround for older versions of MinGW. */
     37 #ifndef ECONNREFUSED
     38 # define ECONNREFUSED WSAECONNREFUSED
     39 #endif
     40 #ifndef EINPROGRESS
     41 # define EINPROGRESS  WSAEINPROGRESS
     42 #endif
     43 #ifndef EHOSTUNREACH
     44 # define EHOSTUNREACH WSAEHOSTUNREACH
     45 #endif
     46 #ifndef EINTR
     47 # define EINTR        WSAEINTR
     48 #endif
     49 #ifndef EINPROGRESS
     50 # define EINPROGRESS  WSAEINPROGRESS
     51 #endif
     52 #ifndef ENETUNREACH
     53 # define ENETUNREACH  WSAENETUNREACH
     54 #endif
     55 #ifndef ENOTCONN
     56 # define ENOTCONN     WSAENOTCONN
     57 #endif
     58 #ifndef EWOULDBLOCK
     59 # define EWOULDBLOCK  WSAEWOULDBLOCK
     60 #endif
     61 
     62 #if defined(_WIN64)
     63 /* On w64, setjmp is implemented by _setjmp which needs a second parameter.
     64  * If this parameter is NULL, longjump does no stack unwinding.
     65  * That is what we need for QEMU. Passing the value of register rsp (default)
     66  * lets longjmp try a stack unwinding which will crash with generated code. */
     67 # undef setjmp
     68 # define setjmp(env) _setjmp(env, NULL)
     69 #endif
     70 /* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify
     71  * "longjmp and don't touch the signal masks". Since we know that the
     72  * savemask parameter will always be zero we can safely define these
     73  * in terms of setjmp/longjmp on Win32.
     74  */
     75 #define sigjmp_buf jmp_buf
     76 #define sigsetjmp(env, savemask) setjmp(env)
     77 #define siglongjmp(env, val) longjmp(env, val)
     78 
     79 /* Declaration of ffs() is missing in MinGW's strings.h. */
     80 int ffs(int i);
     81 
     82 /* Missing POSIX functions. Don't use MinGW-w64 macros. */
     83 #undef gmtime_r
     84 struct tm *gmtime_r(const time_t *timep, struct tm *result);
     85 #undef localtime_r
     86 struct tm *localtime_r(const time_t *timep, struct tm *result);
     87 
     88 char *strtok_r(char *str, const char *delim, char **saveptr);
     89 
     90 /* Polling handling */
     91 
     92 /* return TRUE if no sleep should be done afterwards */
     93 typedef int PollingFunc(void *opaque);
     94 
     95 int qemu_add_polling_cb(PollingFunc *func, void *opaque);
     96 void qemu_del_polling_cb(PollingFunc *func, void *opaque);
     97 
     98 /* Wait objects handling */
     99 typedef void WaitObjectFunc(void *opaque);
    100 
    101 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);
    102 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);
    103 
    104 void os_host_main_loop_wait(int *timeout);
    105 
    106 static inline void os_setup_signal_handling(void) {}
    107 static inline void os_daemonize(void) {}
    108 static inline void os_setup_post(void) {}
    109 void os_set_line_buffering(void);
    110 static inline void os_set_proc_name(const char *dummy) {}
    111 
    112 #if !defined(EPROTONOSUPPORT)
    113 # define EPROTONOSUPPORT EINVAL
    114 #endif
    115 
    116 int setenv(const char *name, const char *value, int overwrite);
    117 
    118 typedef struct {
    119     long tv_sec;
    120     long tv_usec;
    121 } qemu_timeval;
    122 int qemu_gettimeofday(qemu_timeval *tp);
    123 
    124 static inline bool is_daemonized(void)
    125 {
    126     return false;
    127 }
    128 
    129 static inline int os_mlock(void)
    130 {
    131     return -ENOSYS;
    132 }
    133 
    134 #endif
    135