src/include/port/win32.h

   1 /* $PostgreSQL$ */
   2
   3 #if defined(_MSC_VER) || defined(__BORLANDC__)
   4 #define WIN32_ONLY_COMPILER
   5 #endif
   6
   7 #define _WIN32_WINNT 0x0500
   8 /*
   9  * Always build with SSPI support. Keep it as a #define in case
  10  * we want a switch to disable it sometime in the future.
  11  */
  12 #ifndef __BORLANDC__
  13 #define ENABLE_SSPI 1
  14 #endif
  15
  16 /* undefine and redefine after #include */
  17 #undef mkdir
  18
  19 #undef ERROR
  20 #define _WINSOCKAPI_
  21 #include <windows.h>
  22 #include <winsock2.h>
  23 #include <ws2tcpip.h>
  24 #undef small
  25 #include <process.h>
  26 #include <signal.h>
  27 #include <errno.h>
  28 #include <direct.h>
  29 #ifndef __BORLANDC__
  30 #include <sys/utime.h>                  /* for non-unicode version */
  31 #endif
  32 #undef near
  33
  34 /* Must be here to avoid conflicting with prototype in windows.h */
  35 #define mkdir(a,b)      mkdir(a)
  36
  37 #define HAVE_FSYNC_WRITETHROUGH
  38 #define HAVE_FSYNC_WRITETHROUGH_ONLY
  39 #define ftruncate(a,b)  chsize(a,b)
  40 /*
  41  *      Even though we don't support 'fsync' as a wal_sync_method,
  42  *      we do fsync() a few other places where _commit() is just fine.
  43  */
  44 #define fsync(fd) _commit(fd)
  45
  46 #define USES_WINSOCK
  47
  48 /* defines for dynamic linking on Win32 platform */
  49 #if defined(WIN32) || defined(__CYGWIN__)
  50
  51 #if __GNUC__ && ! defined (__declspec)
  52 #error You need egcs 1.1 or newer for compiling!
  53 #endif
  54
  55 #ifdef BUILDING_DLL
  56 #define PGDLLIMPORT __declspec (dllexport)
  57 #else                                                   /* not BUILDING_DLL */
  58 #define PGDLLIMPORT __declspec (dllimport)
  59 #endif
  60 #else                                                   /* not CYGWIN, not MSVC, not MingW */
  61
  62 #define PGDLLIMPORT
  63 #endif
  64
  65
  66 /*
  67  *      IPC defines
  68  */
  69 #undef HAVE_UNION_SEMUN
  70 #define HAVE_UNION_SEMUN 1
  71
  72 #define IPC_RMID 256
  73 #define IPC_CREAT 512
  74 #define IPC_EXCL 1024
  75 #define IPC_PRIVATE 234564
  76 #define IPC_NOWAIT      2048
  77 #define IPC_STAT 4096
  78
  79 #define EACCESS 2048
  80 #define EIDRM 4096
  81
  82 #define SETALL 8192
  83 #define GETNCNT 16384
  84 #define GETVAL 65536
  85 #define SETVAL 131072
  86 #define GETPID 262144
  87
  88
  89 /*
  90  *      Signal stuff
  91  *
  92  *      For WIN32, there is no wait() call so there are no wait() macros
  93  *      to interpret the return value of system().      Instead, system()
  94  *      return values < 0x100 are used for exit() termination, and higher
  95  *      values are used to indicated non-exit() termination, which is
  96  *      similar to a unix-style signal exit (think SIGSEGV ==
  97  *      STATUS_ACCESS_VIOLATION).  Return values are broken up into groups:
  98  *
  99  *      http://msdn2.microsoft.com/en-gb/library/aa489609.aspx
 100  *
 101  *              NT_SUCCESS                      0 - 0x3FFFFFFF
 102  *              NT_INFORMATION          0x40000000 - 0x7FFFFFFF
 103  *              NT_WARNING                      0x80000000 - 0xBFFFFFFF
 104  *              NT_ERROR                        0xC0000000 - 0xFFFFFFFF
 105  *
 106  *      Effectively, we don't care on the severity of the return value from
 107  *      system(), we just need to know if it was because of exit() or generated
 108  *      by the system, and it seems values >= 0x100 are system-generated.
 109  *      See this URL for a list of WIN32 STATUS_* values:
 110  *
 111  *              Wine (URL used in our error messages) -
 112  *                      http://source.winehq.org/source/include/ntstatus.h
 113  *              Descriptions - http://www.comp.nus.edu.sg/~wuyongzh/my_doc/ntstatus.txt
 114  *              MS SDK - http://www.nologs.com/ntstatus.html
 115  *
 116  *      It seems the exception lists are in both ntstatus.h and winnt.h, but
 117  *      ntstatus.h has a more comprehensive list, and it only contains
 118  *      exception values, rather than winnt, which contains lots of other
 119  *      things:
 120  *
 121  *              http://www.microsoft.com/msj/0197/exception/exception.aspx
 122  *
 123  *              The ExceptionCode parameter is the number that the operating system
 124  *              assigned to the exception. You can see a list of various exception codes
 125  *              in WINNT.H by searching for #defines that start with "STATUS_". For
 126  *              example, the code for the all-too-familiar STATUS_ACCESS_VIOLATION is
 127  *              0xC0000005. A more complete set of exception codes can be found in
 128  *              NTSTATUS.H from the Windows NT DDK.
 129  *
 130  *      Some day we might want to print descriptions for the most common
 131  *      exceptions, rather than printing an include file name.  We could use
 132  *      RtlNtStatusToDosError() and pass to FormatMessage(), which can print
 133  *      the text of error values, but MinGW does not support
 134  *      RtlNtStatusToDosError().
 135  */
 136 #define WIFEXITED(w)    (((w) & 0XFFFFFF00) == 0)
 137 #define WIFSIGNALED(w)  (!WIFEXITED(w))
 138 #define WEXITSTATUS(w)  (w)
 139 #define WTERMSIG(w)             (w)
 140
 141 #define sigmask(sig) ( 1 << ((sig)-1) )
 142
 143 /* Signal function return values */
 144 #undef SIG_DFL
 145 #undef SIG_ERR
 146 #undef SIG_IGN
 147 #define SIG_DFL ((pqsigfunc)0)
 148 #define SIG_ERR ((pqsigfunc)-1)
 149 #define SIG_IGN ((pqsigfunc)1)
 150
 151 /* Some extra signals */
 152 #define SIGHUP                          1
 153 #define SIGQUIT                         3
 154 #define SIGTRAP                         5
 155 #define SIGABRT                         22      /* Set to match W32 value -- not UNIX value */
 156 #define SIGKILL                         9
 157 #define SIGPIPE                         13
 158 #define SIGALRM                         14
 159 #define SIGSTOP                         17
 160 #define SIGTSTP                         18
 161 #define SIGCONT                         19
 162 #define SIGCHLD                         20
 163 #define SIGTTIN                         21
 164 #define SIGTTOU                         22      /* Same as SIGABRT -- no problem, I hope */
 165 #define SIGWINCH                        28
 166 #ifndef __BORLANDC__
 167 #define SIGUSR1                         30
 168 #define SIGUSR2                         31
 169 #endif
 170
 171 /*
 172  * New versions of mingw have gettimeofday() and also declare
 173  * struct timezone to support it.
 174  */
 175 #ifndef HAVE_GETTIMEOFDAY
 176 struct timezone
 177 {
 178         int                     tz_minuteswest; /* Minutes west of GMT.  */
 179         int                     tz_dsttime;             /* Nonzero if DST is ever in effect.  */
 180 };
 181 #endif
 182
 183 /* for setitimer in backend/port/win32/timer.c */
 184 #define ITIMER_REAL 0
 185 struct itimerval
 186 {
 187         struct timeval it_interval;
 188         struct timeval it_value;
 189 };
 190
 191 int                     setitimer(int which, const struct itimerval * value, struct itimerval * ovalue);
 192
 193 /*
 194  * WIN32 does not provide 64-bit off_t, but does provide the functions operating
 195  * with 64-bit offsets.
 196  */
 197 #define pgoff_t __int64
 198 #ifdef WIN32_ONLY_COMPILER
 199 #define fseeko(stream, offset, origin) _fseeki64(stream, offset, origin)
 200 #define ftello(stream) _ftelli64(stream)
 201 #else
 202 #define fseeko(stream, offset, origin) fseeko64(stream, offset, origin)
 203 #define ftello(stream) ftello64(stream)
 204 #endif
 205
 206 /*
 207  * Supplement to <sys/types.h>.
 208  *
 209  * Perl already has typedefs for uid_t and gid_t.
 210  */
 211 #ifndef PLPERL_HAVE_UID_GID
 212 typedef int uid_t;
 213 typedef int gid_t;
 214 #endif
 215 typedef long key_t;
 216
 217 #ifdef WIN32_ONLY_COMPILER
 218 typedef int pid_t;
 219 #endif
 220
 221 /*
 222  * Supplement to <sys/stat.h>.
 223  */
 224 #define lstat(path, sb) stat((path), (sb))
 225
 226 /*
 227  * Supplement to <fcntl.h>.
 228  * This is the same value as _O_NOINHERIT in the MS header file. This is
 229  * to ensure that we don't collide with a future definition. It means
 230  * we cannot use _O_NOINHERIT ourselves.
 231  */
 232 #define O_DSYNC 0x0080
 233
 234 /*
 235  * Supplement to <errno.h>.
 236  */
 237 #undef EAGAIN
 238 #undef EINTR
 239 #define EINTR WSAEINTR
 240 #define EAGAIN WSAEWOULDBLOCK
 241 #define EMSGSIZE WSAEMSGSIZE
 242 #define EAFNOSUPPORT WSAEAFNOSUPPORT
 243 #define EWOULDBLOCK WSAEWOULDBLOCK
 244 #define ECONNRESET WSAECONNRESET
 245 #define EINPROGRESS WSAEINPROGRESS
 246 #define ENOBUFS WSAENOBUFS
 247 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
 248 #define ECONNREFUSED WSAECONNREFUSED
 249 #define EBADFD WSAENOTSOCK
 250 #define EOPNOTSUPP WSAEOPNOTSUPP
 251
 252
 253 /* In backend/port/win32/signal.c */
 254 extern PGDLLIMPORT volatile int pg_signal_queue;
 255 extern PGDLLIMPORT int pg_signal_mask;
 256 extern HANDLE pgwin32_signal_event;
 257 extern HANDLE pgwin32_initial_signal_pipe;
 258
 259 #define UNBLOCKED_SIGNAL_QUEUE()        (pg_signal_queue & ~pg_signal_mask)
 260
 261
 262 void            pgwin32_signal_initialize(void);
 263 HANDLE          pgwin32_create_signal_listener(pid_t pid);
 264 void            pgwin32_dispatch_queued_signals(void);
 265 void            pg_queue_signal(int signum);
 266
 267 /* In backend/port/win32/socket.c */
 268 #ifndef FRONTEND
 269 #define socket(af, type, protocol) pgwin32_socket(af, type, protocol)
 270 #define accept(s, addr, addrlen) pgwin32_accept(s, addr, addrlen)
 271 #define connect(s, name, namelen) pgwin32_connect(s, name, namelen)
 272 #define select(n, r, w, e, timeout) pgwin32_select(n, r, w, e, timeout)
 273 #define recv(s, buf, len, flags) pgwin32_recv(s, buf, len, flags)
 274 #define send(s, buf, len, flags) pgwin32_send(s, buf, len, flags)
 275
 276 SOCKET          pgwin32_socket(int af, int type, int protocol);
 277 SOCKET          pgwin32_accept(SOCKET s, struct sockaddr * addr, int *addrlen);
 278 int                     pgwin32_connect(SOCKET s, const struct sockaddr * name, int namelen);
 279 int                     pgwin32_select(int nfds, fd_set *readfs, fd_set *writefds, fd_set *exceptfds, const struct timeval * timeout);
 280 int                     pgwin32_recv(SOCKET s, char *buf, int len, int flags);
 281 int                     pgwin32_send(SOCKET s, char *buf, int len, int flags);
 282
 283 const char *pgwin32_socket_strerror(int err);
 284 int                     pgwin32_waitforsinglesocket(SOCKET s, int what, int timeout);
 285
 286 /* in backend/port/win32/security.c */
 287 extern int      pgwin32_is_admin(void);
 288 extern int      pgwin32_is_service(void);
 289 #endif
 290
 291 /* in port/win32error.c */
 292 extern void _dosmaperr(unsigned long);
 293
 294
 295 /* Things that exist in MingW headers, but need to be added to MSVC */
 296 #ifdef WIN32_ONLY_COMPILER
 297 typedef long ssize_t;
 298 #ifndef __BORLANDC__
 299 typedef unsigned short mode_t;
 300 #endif
 301
 302 /*
 303  *      Certain "standard edition" versions of MSVC throw a warning
 304  *      that later generates an error for "inline" statements, but
 305  *      __inline seems to work.  e.g.  Microsoft Visual C++ .NET
 306  *      Version 7.1.3088
 307  */
 308 #define inline __inline
 309 #define __inline__ __inline
 310
 311 #ifndef __BORLANDC__
 312 #define _S_IRWXU        (_S_IREAD | _S_IWRITE | _S_IEXEC)
 313 #define _S_IXUSR        _S_IEXEC
 314 #define _S_IWUSR        _S_IWRITE
 315 #define _S_IRUSR        _S_IREAD
 316 #define S_IRUSR         _S_IRUSR
 317 #define S_IWUSR         _S_IWUSR
 318 #define S_IXUSR         _S_IXUSR
 319 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 320 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 321 #endif
 322
 323 #define F_OK 0
 324 #define W_OK 2
 325 #define R_OK 4
 326
 327 #define isinf(x) ((_fpclass(x) == _FPCLASS_PINF) || (_fpclass(x) == _FPCLASS_NINF))
 328 #define isnan(x) _isnan(x)
 329
 330 /* Pulled from Makefile.port in mingw */
 331 #define DLSUFFIX ".dll"
 332
 333 #endif