src/include/port/win32.h - hawq - Git at Google

 /* $PostgreSQL: pgsql/src/include/port/win32.h,v 1.88 2009/06/11 14:49:12 momjian Exp $ */

 #if defined(_MSC_VER) || defined(__BORLANDC__)
 #define WIN32_ONLY_COMPILER
 #endif

 #ifndef _WIN32_WINNT
 #define _WIN32_WINNT 0x0501
 #endif

 /*
  * Always build with SSPI support. Keep it as a #define in case
  * we want a switch to disable it sometime in the future.
  */
 #ifndef __BORLANDC__
 #define ENABLE_SSPI 1
 #endif

 /* undefine and redefine after #include */
 #undef mkdir

 #undef ERROR
 #define _WINSOCKAPI_
 #include <winsock2.h>
 #include <windows.h>
 #include <ws2tcpip.h>
 #undef small
 #include <process.h>
 #include <signal.h>
 #include <errno.h>
 #include <direct.h>
 #ifndef __BORLANDC__
 #include <sys/utime.h>			/* for non-unicode version */
 #endif
 #undef near

 /* Must be here to avoid conflicting with prototype in windows.h */
 #define mkdir(a,b)	mkdir(a)

 #define HAVE_FSYNC_WRITETHROUGH
 #define HAVE_FSYNC_WRITETHROUGH_ONLY
 #define ftruncate(a,b)	chsize(a,b)
 /*
  *	Even though we don't support 'fsync' as a wal_sync_method,
  *	we do fsync() a few other places where _commit() is just fine.
  */
 #define fsync(fd) _commit(fd)

 #define USES_WINSOCK

 /* defines for dynamic linking on Win32 platform */
 #if defined(WIN32) || defined(__CYGWIN__)

 #if __GNUC__ && ! defined (__declspec)
 #error You need egcs 1.1 or newer for compiling!
 #endif

 #ifdef BUILDING_DLL
 #define PGDLLIMPORT __declspec (dllexport)
 #else							/* not BUILDING_DLL */
 #define PGDLLIMPORT __declspec (dllimport)
 #endif
 #else							/* not CYGWIN, not MSVC, not MingW */

 #define PGDLLIMPORT
 #endif


 /*
  *	IPC defines
  */
 #undef HAVE_UNION_SEMUN
 #define HAVE_UNION_SEMUN 1

 #define IPC_RMID 256
 #define IPC_CREAT 512
 #define IPC_EXCL 1024
 #define IPC_PRIVATE 234564
 #define IPC_NOWAIT	2048
 #define IPC_STAT 4096

 #define EACCESS 2048
 #ifndef EIDRM
 #define EIDRM 4096
 #endif

 #define SETALL 8192
 #define GETNCNT 16384
 #define GETVAL 65536
 #define SETVAL 131072
 #define GETPID 262144


 /*
  *	Signal stuff
  *
  *	For WIN32, there is no wait() call so there are no wait() macros
  *	to interpret the return value of system().	Instead, system()
  *	return values < 0x100 are used for exit() termination, and higher
  *	values are used to indicated non-exit() termination, which is
  *	similar to a unix-style signal exit (think SIGSEGV ==
  *	STATUS_ACCESS_VIOLATION).  Return values are broken up into groups:
  *
  *	http://msdn2.microsoft.com/en-gb/library/aa489609.aspx
  *
  *		NT_SUCCESS			0 - 0x3FFFFFFF
  *		NT_INFORMATION		0x40000000 - 0x7FFFFFFF
  *		NT_WARNING			0x80000000 - 0xBFFFFFFF
  *		NT_ERROR			0xC0000000 - 0xFFFFFFFF
  *
  *	Effectively, we don't care on the severity of the return value from
  *	system(), we just need to know if it was because of exit() or generated
  *	by the system, and it seems values >= 0x100 are system-generated.
  *	See this URL for a list of WIN32 STATUS_* values:
  *
  *		Wine (URL used in our error messages) -
  *			http://source.winehq.org/source/include/ntstatus.h
  *		Descriptions - http://www.comp.nus.edu.sg/~wuyongzh/my_doc/ntstatus.txt
  *		MS SDK - http://www.nologs.com/ntstatus.html
  *
  *	It seems the exception lists are in both ntstatus.h and winnt.h, but
  *	ntstatus.h has a more comprehensive list, and it only contains
  *	exception values, rather than winnt, which contains lots of other
  *	things:
  *
  *		http://www.microsoft.com/msj/0197/exception/exception.aspx
  *
  *		The ExceptionCode parameter is the number that the operating system
  *		assigned to the exception. You can see a list of various exception codes
  *		in WINNT.H by searching for #defines that start with "STATUS_". For
  *		example, the code for the all-too-familiar STATUS_ACCESS_VIOLATION is
  *		0xC0000005. A more complete set of exception codes can be found in
  *		NTSTATUS.H from the Windows NT DDK.
  *
  *	Some day we might want to print descriptions for the most common
  *	exceptions, rather than printing an include file name.	We could use
  *	RtlNtStatusToDosError() and pass to FormatMessage(), which can print
  *	the text of error values, but MinGW does not support
  *	RtlNtStatusToDosError().
  */
 #define WIFEXITED(w)	(((w) & 0XFFFFFF00) == 0)
 #define WIFSIGNALED(w)	(!WIFEXITED(w))
 #define WEXITSTATUS(w)	(w)
 #define WTERMSIG(w)		(w)

 #define sigmask(sig) ( 1 << ((sig)-1) )

 /* Signal function return values */
 #undef SIG_DFL
 #undef SIG_ERR
 #undef SIG_IGN
 #define SIG_DFL ((pqsigfunc)0)
 #define SIG_ERR ((pqsigfunc)-1)
 #define SIG_IGN ((pqsigfunc)1)

 /* Some extra signals */
 #define SIGHUP				1
 #define SIGQUIT				3
 #define SIGTRAP				5
 #define SIGABRT				22	/* Set to match W32 value -- not UNIX value */
 #define SIGKILL				9
 #define SIGPIPE				13
 #define SIGALRM				14
 #define SIGSTOP				17
 #define SIGTSTP				18
 #define SIGCONT				19
 #define SIGCHLD				20
 #define SIGTTIN				21
 #define SIGTTOU				22	/* Same as SIGABRT -- no problem, I hope */
 #define SIGWINCH			28
 #ifndef __BORLANDC__
 #define SIGUSR1				30
 #define SIGUSR2				31
 #endif

 /*
  * New versions of mingw have gettimeofday() and also declare
  * struct timezone to support it.
  */
 #ifndef HAVE_GETTIMEOFDAY
 struct timezone
 {
 	int			tz_minuteswest; /* Minutes west of GMT.  */
 	int			tz_dsttime;		/* Nonzero if DST is ever in effect.  */
 };
 #endif

 /* for setitimer in backend/port/win32/timer.c */
 #define ITIMER_REAL 0
 #define ITIMER_VIRTUAL 1
 #define ITIMER_PROF 2
 struct itimerval
 {
 	struct timeval it_interval;
 	struct timeval it_value;
 };

 int			setitimer(int which, const struct itimerval * value, struct itimerval * ovalue);

 /*
  * WIN32 does not provide 64-bit off_t, but does provide the functions operating
  * with 64-bit offsets.
  */
 #define pgoff_t __int64
 #ifdef WIN32_ONLY_COMPILER
 #define fseeko(stream, offset, origin) _fseeki64(stream, offset, origin)
 #define ftello(stream) _ftelli64(stream)
 #else
 #define fseeko(stream, offset, origin) fseeko64(stream, offset, origin)
 #define ftello(stream) ftello64(stream)
 #endif

 /*
  * Supplement to <sys/types.h>.
  *
  * Perl already has typedefs for uid_t and gid_t.
  */
 #ifndef PLPERL_HAVE_UID_GID
 typedef int uid_t;
 typedef int gid_t;
 #endif
 typedef long key_t;

 #ifdef WIN32_ONLY_COMPILER
 typedef int pid_t;
 #endif

 /*
  * Supplement to <sys/stat.h>.
  */
 #define lstat(path, sb) stat((path), (sb))

 /*
  * Supplement to <fcntl.h>.
  * This is the same value as _O_NOINHERIT in the MS header file. This is
  * to ensure that we don't collide with a future definition. It means
  * we cannot use _O_NOINHERIT ourselves.
  */
 #define O_DSYNC 0x0080

 /*
  * Supplement to <errno.h>.
  */
 #undef EAGAIN
 #undef EINTR
 #define EINTR WSAEINTR
 #undef EAGAIN
 #define EAGAIN WSAEWOULDBLOCK
 #undef EMSGSIZE
 #define EMSGSIZE WSAEMSGSIZE
 #undef EAFNOSUPPORT
 #define EAFNOSUPPORT WSAEAFNOSUPPORT
 #undef EWOULDBLOCK
 #define EWOULDBLOCK WSAEWOULDBLOCK
 #undef ECONNRESET
 #define ECONNRESET WSAECONNRESET
 #undef EINPROGRESS
 #define EINPROGRESS WSAEINPROGRESS
 #undef ENOBUFS
 #define ENOBUFS WSAENOBUFS
 #undef EPROTONOSUPPORT
 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
 #undef ECONNREFUSED
 #define ECONNREFUSED WSAECONNREFUSED
 #define EBADFD WSAENOTSOCK
 #undef EOPNOTSUPP
 #define EOPNOTSUPP WSAEOPNOTSUPP


 /* In backend/port/win32/signal.c */
 extern PGDLLIMPORT volatile int pg_signal_queue;
 extern PGDLLIMPORT int pg_signal_mask;
 extern HANDLE pgwin32_signal_event;
 extern HANDLE pgwin32_initial_signal_pipe;

 #define UNBLOCKED_SIGNAL_QUEUE()	(pg_signal_queue & ~pg_signal_mask)


 void		pgwin32_signal_initialize(void);
 HANDLE		pgwin32_create_signal_listener(pid_t pid);
 void		pgwin32_dispatch_queued_signals(void);
 void		pg_queue_signal(int signum);

 /* In backend/port/win32/socket.c */
 #ifndef FRONTEND
 #define socket(af, type, protocol) pgwin32_socket(af, type, protocol)
 #define accept(s, addr, addrlen) pgwin32_accept(s, addr, addrlen)
 #define connect(s, name, namelen) pgwin32_connect(s, name, namelen)
 #define select(n, r, w, e, timeout) pgwin32_select(n, r, w, e, timeout)
 #define recv(s, buf, len, flags) pgwin32_recv(s, buf, len, flags)
 #define send(s, buf, len, flags) pgwin32_send(s, buf, len, flags)

 SOCKET		pgwin32_socket(int af, int type, int protocol);
 SOCKET		pgwin32_accept(SOCKET s, struct sockaddr * addr, int *addrlen);
 int			pgwin32_connect(SOCKET s, const struct sockaddr * name, int namelen);
 int			pgwin32_select(int nfds, fd_set *readfs, fd_set *writefds, fd_set *exceptfds, const struct timeval * timeout);
 int			pgwin32_recv(SOCKET s, char *buf, int len, int flags);
 int			pgwin32_send(SOCKET s, char *buf, int len, int flags);

 const char *pgwin32_socket_strerror(int err);
 int			pgwin32_waitforsinglesocket(SOCKET s, int what, int timeout);

 /* in backend/port/win32/security.c */
 extern int	pgwin32_is_admin(void);
 extern int	pgwin32_is_service(void);
 #endif

 /* in port/win32error.c */
 extern void _dosmaperr(unsigned long);

 #ifndef			BIG_ENDIAN
 #define			BIG_ENDIAN		4321
 #endif
 #ifndef			LITTLE_ENDIAN
 #define			LITTLE_ENDIAN	1234
 #endif
 #ifndef			PDP_ENDIAN
 #define			PDP_ENDIAN		3412
 #endif

 #ifndef BYTE_ORDER
 #define BYTE_ORDER LITTLE_ENDIAN
 #endif

 /* in port/win32env.c */
 extern int pgwin32_putenv(const char *);
 extern void pgwin32_unsetenv(const char *);

 #define putenv(x) pgwin32_putenv(x)
 #define unsetenv(x) pgwin32_unsetenv(x)

 /* Things that exist in MingW headers, but need to be added to MSVC & BCC */
 #ifdef WIN32_ONLY_COMPILER
 #ifndef _WIN64
 typedef long ssize_t;
 #else
 typedef __int64 ssize_t;
 #endif

 #ifndef __BORLANDC__
 typedef unsigned short mode_t;
 #endif

 /*
  *	Certain "standard edition" versions of MSVC throw a warning
  *	that later generates an error for "inline" statements, but
  *	__inline seems to work.  e.g.  Microsoft Visual C++ .NET
  *	Version 7.1.3088
  */
 #define inline __inline
 #define __inline__ __inline

 #ifndef __BORLANDC__
 #define _S_IRWXU	(_S_IREAD | _S_IWRITE | _S_IEXEC)
 #define _S_IXUSR	_S_IEXEC
 #define _S_IWUSR	_S_IWRITE
 #define _S_IRUSR	_S_IREAD
 #define S_IRUSR		_S_IRUSR
 #define S_IWUSR		_S_IWUSR
 #define S_IXUSR		_S_IXUSR
 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 #endif

 #define F_OK 0
 #define W_OK 2
 #define R_OK 4

 #define isinf(x) ((_fpclass(x) == _FPCLASS_PINF) || (_fpclass(x) == _FPCLASS_NINF))
 #define isnan(x) _isnan(x)
 #define finite(x) _finite(x)

 /* Pulled from Makefile.port in mingw */
 #define DLSUFFIX ".dll"

 #ifdef __BORLANDC__

 /* for port/dirent.c */
 #ifndef INVALID_FILE_ATTRIBUTES
 #define INVALID_FILE_ATTRIBUTES ((DWORD) -1)
 #endif

 /* for port/open.c */
 #ifndef O_RANDOM
 #define O_RANDOM		0x0010	/* File access is primarily random */
 #define O_SEQUENTIAL	0x0020	/* File access is primarily sequential */
 #define O_TEMPORARY	0x0040	/* Temporary file bit */
 #define O_SHORT_LIVED	0x1000	/* Temporary storage file, try not to flush */
 #define _O_SHORT_LIVED	O_SHORT_LIVED
 #endif /* ifndef O_RANDOM */

 #endif /* __BORLANDC__ */

 #endif
	/* $PostgreSQL: pgsql/src/include/port/win32.h,v 1.88 2009/06/11 14:49:12 momjian Exp $ */

	#if defined(_MSC_VER) \|\| defined(__BORLANDC__)
	#define WIN32_ONLY_COMPILER
	#endif

	#ifndef _WIN32_WINNT
	#define _WIN32_WINNT 0x0501
	#endif

	/*
	* Always build with SSPI support. Keep it as a #define in case
	* we want a switch to disable it sometime in the future.
	*/
	#ifndef __BORLANDC__
	#define ENABLE_SSPI 1
	#endif

	/* undefine and redefine after #include */
	#undef mkdir

	#undef ERROR
	#define _WINSOCKAPI_
	#include <winsock2.h>
	#include <windows.h>
	#include <ws2tcpip.h>
	#undef small
	#include <process.h>
	#include <signal.h>
	#include <errno.h>
	#include <direct.h>
	#ifndef __BORLANDC__
	#include <sys/utime.h> /* for non-unicode version */
	#endif
	#undef near

	/* Must be here to avoid conflicting with prototype in windows.h */
	#define mkdir(a,b) mkdir(a)

	#define HAVE_FSYNC_WRITETHROUGH
	#define HAVE_FSYNC_WRITETHROUGH_ONLY
	#define ftruncate(a,b) chsize(a,b)
	/*
	* Even though we don't support 'fsync' as a wal_sync_method,
	* we do fsync() a few other places where _commit() is just fine.
	*/
	#define fsync(fd) _commit(fd)

	#define USES_WINSOCK

	/* defines for dynamic linking on Win32 platform */
	#if defined(WIN32) \|\| defined(__CYGWIN__)

	#if __GNUC__ && ! defined (__declspec)
	#error You need egcs 1.1 or newer for compiling!
	#endif

	#ifdef BUILDING_DLL
	#define PGDLLIMPORT __declspec (dllexport)
	#else /* not BUILDING_DLL */
	#define PGDLLIMPORT __declspec (dllimport)
	#endif
	#else /* not CYGWIN, not MSVC, not MingW */

	#define PGDLLIMPORT
	#endif


	/*
	* IPC defines
	*/
	#undef HAVE_UNION_SEMUN
	#define HAVE_UNION_SEMUN 1

	#define IPC_RMID 256
	#define IPC_CREAT 512
	#define IPC_EXCL 1024
	#define IPC_PRIVATE 234564
	#define IPC_NOWAIT 2048
	#define IPC_STAT 4096

	#define EACCESS 2048
	#ifndef EIDRM
	#define EIDRM 4096
	#endif

	#define SETALL 8192
	#define GETNCNT 16384
	#define GETVAL 65536
	#define SETVAL 131072
	#define GETPID 262144


	/*
	* Signal stuff
	*
	* For WIN32, there is no wait() call so there are no wait() macros
	* to interpret the return value of system(). Instead, system()
	* return values < 0x100 are used for exit() termination, and higher
	* values are used to indicated non-exit() termination, which is
	* similar to a unix-style signal exit (think SIGSEGV ==
	* STATUS_ACCESS_VIOLATION). Return values are broken up into groups:
	*
	* http://msdn2.microsoft.com/en-gb/library/aa489609.aspx
	*
	* NT_SUCCESS 0 - 0x3FFFFFFF
	* NT_INFORMATION 0x40000000 - 0x7FFFFFFF
	* NT_WARNING 0x80000000 - 0xBFFFFFFF
	* NT_ERROR 0xC0000000 - 0xFFFFFFFF
	*
	* Effectively, we don't care on the severity of the return value from
	* system(), we just need to know if it was because of exit() or generated
	* by the system, and it seems values >= 0x100 are system-generated.
	* See this URL for a list of WIN32 STATUS_* values:
	*
	* Wine (URL used in our error messages) -
	* http://source.winehq.org/source/include/ntstatus.h
	* Descriptions - http://www.comp.nus.edu.sg/~wuyongzh/my_doc/ntstatus.txt
	* MS SDK - http://www.nologs.com/ntstatus.html
	*
	* It seems the exception lists are in both ntstatus.h and winnt.h, but
	* ntstatus.h has a more comprehensive list, and it only contains
	* exception values, rather than winnt, which contains lots of other
	* things:
	*
	* http://www.microsoft.com/msj/0197/exception/exception.aspx
	*
	* The ExceptionCode parameter is the number that the operating system
	* assigned to the exception. You can see a list of various exception codes
	* in WINNT.H by searching for #defines that start with "STATUS_". For
	* example, the code for the all-too-familiar STATUS_ACCESS_VIOLATION is
	* 0xC0000005. A more complete set of exception codes can be found in
	* NTSTATUS.H from the Windows NT DDK.
	*
	* Some day we might want to print descriptions for the most common
	* exceptions, rather than printing an include file name. We could use
	* RtlNtStatusToDosError() and pass to FormatMessage(), which can print
	* the text of error values, but MinGW does not support
	* RtlNtStatusToDosError().
	*/
	#define WIFEXITED(w) (((w) & 0XFFFFFF00) == 0)
	#define WIFSIGNALED(w) (!WIFEXITED(w))
	#define WEXITSTATUS(w) (w)
	#define WTERMSIG(w) (w)

	#define sigmask(sig) ( 1 << ((sig)-1) )

	/* Signal function return values */
	#undef SIG_DFL
	#undef SIG_ERR
	#undef SIG_IGN
	#define SIG_DFL ((pqsigfunc)0)
	#define SIG_ERR ((pqsigfunc)-1)
	#define SIG_IGN ((pqsigfunc)1)

	/* Some extra signals */
	#define SIGHUP 1
	#define SIGQUIT 3
	#define SIGTRAP 5
	#define SIGABRT 22 /* Set to match W32 value -- not UNIX value */
	#define SIGKILL 9
	#define SIGPIPE 13
	#define SIGALRM 14
	#define SIGSTOP 17
	#define SIGTSTP 18
	#define SIGCONT 19
	#define SIGCHLD 20
	#define SIGTTIN 21
	#define SIGTTOU 22 /* Same as SIGABRT -- no problem, I hope */
	#define SIGWINCH 28
	#ifndef __BORLANDC__
	#define SIGUSR1 30
	#define SIGUSR2 31
	#endif

	/*
	* New versions of mingw have gettimeofday() and also declare
	* struct timezone to support it.
	*/
	#ifndef HAVE_GETTIMEOFDAY
	struct timezone
	{
	int tz_minuteswest; /* Minutes west of GMT. */
	int tz_dsttime; /* Nonzero if DST is ever in effect. */
	};
	#endif

	/* for setitimer in backend/port/win32/timer.c */
	#define ITIMER_REAL 0
	#define ITIMER_VIRTUAL 1
	#define ITIMER_PROF 2
	struct itimerval
	{
	struct timeval it_interval;
	struct timeval it_value;
	};

	int setitimer(int which, const struct itimerval * value, struct itimerval * ovalue);

	/*
	* WIN32 does not provide 64-bit off_t, but does provide the functions operating
	* with 64-bit offsets.
	*/
	#define pgoff_t __int64
	#ifdef WIN32_ONLY_COMPILER
	#define fseeko(stream, offset, origin) _fseeki64(stream, offset, origin)
	#define ftello(stream) _ftelli64(stream)
	#else
	#define fseeko(stream, offset, origin) fseeko64(stream, offset, origin)
	#define ftello(stream) ftello64(stream)
	#endif

	/*
	* Supplement to <sys/types.h>.
	*
	* Perl already has typedefs for uid_t and gid_t.
	*/
	#ifndef PLPERL_HAVE_UID_GID
	typedef int uid_t;
	typedef int gid_t;
	#endif
	typedef long key_t;

	#ifdef WIN32_ONLY_COMPILER
	typedef int pid_t;
	#endif

	/*
	* Supplement to <sys/stat.h>.
	*/
	#define lstat(path, sb) stat((path), (sb))

	/*
	* Supplement to <fcntl.h>.
	* This is the same value as _O_NOINHERIT in the MS header file. This is
	* to ensure that we don't collide with a future definition. It means
	* we cannot use _O_NOINHERIT ourselves.
	*/
	#define O_DSYNC 0x0080

	/*
	* Supplement to <errno.h>.
	*/
	#undef EAGAIN
	#undef EINTR
	#define EINTR WSAEINTR
	#undef EAGAIN
	#define EAGAIN WSAEWOULDBLOCK
	#undef EMSGSIZE
	#define EMSGSIZE WSAEMSGSIZE
	#undef EAFNOSUPPORT
	#define EAFNOSUPPORT WSAEAFNOSUPPORT
	#undef EWOULDBLOCK
	#define EWOULDBLOCK WSAEWOULDBLOCK
	#undef ECONNRESET
	#define ECONNRESET WSAECONNRESET
	#undef EINPROGRESS
	#define EINPROGRESS WSAEINPROGRESS
	#undef ENOBUFS
	#define ENOBUFS WSAENOBUFS
	#undef EPROTONOSUPPORT
	#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
	#undef ECONNREFUSED
	#define ECONNREFUSED WSAECONNREFUSED
	#define EBADFD WSAENOTSOCK
	#undef EOPNOTSUPP
	#define EOPNOTSUPP WSAEOPNOTSUPP


	/* In backend/port/win32/signal.c */
	extern PGDLLIMPORT volatile int pg_signal_queue;
	extern PGDLLIMPORT int pg_signal_mask;
	extern HANDLE pgwin32_signal_event;
	extern HANDLE pgwin32_initial_signal_pipe;

	#define UNBLOCKED_SIGNAL_QUEUE() (pg_signal_queue & ~pg_signal_mask)


	void pgwin32_signal_initialize(void);
	HANDLE pgwin32_create_signal_listener(pid_t pid);
	void pgwin32_dispatch_queued_signals(void);
	void pg_queue_signal(int signum);

	/* In backend/port/win32/socket.c */
	#ifndef FRONTEND
	#define socket(af, type, protocol) pgwin32_socket(af, type, protocol)
	#define accept(s, addr, addrlen) pgwin32_accept(s, addr, addrlen)
	#define connect(s, name, namelen) pgwin32_connect(s, name, namelen)
	#define select(n, r, w, e, timeout) pgwin32_select(n, r, w, e, timeout)
	#define recv(s, buf, len, flags) pgwin32_recv(s, buf, len, flags)
	#define send(s, buf, len, flags) pgwin32_send(s, buf, len, flags)

	SOCKET pgwin32_socket(int af, int type, int protocol);
	SOCKET pgwin32_accept(SOCKET s, struct sockaddr * addr, int *addrlen);
	int pgwin32_connect(SOCKET s, const struct sockaddr * name, int namelen);
	int pgwin32_select(int nfds, fd_set readfs, fd_set writefds, fd_set exceptfds, const struct timeval timeout);
	int pgwin32_recv(SOCKET s, char *buf, int len, int flags);
	int pgwin32_send(SOCKET s, char *buf, int len, int flags);

	const char *pgwin32_socket_strerror(int err);
	int pgwin32_waitforsinglesocket(SOCKET s, int what, int timeout);

	/* in backend/port/win32/security.c */
	extern int pgwin32_is_admin(void);
	extern int pgwin32_is_service(void);
	#endif

	/* in port/win32error.c */
	extern void _dosmaperr(unsigned long);

	#ifndef BIG_ENDIAN
	#define BIG_ENDIAN 4321
	#endif
	#ifndef LITTLE_ENDIAN
	#define LITTLE_ENDIAN 1234
	#endif
	#ifndef PDP_ENDIAN
	#define PDP_ENDIAN 3412
	#endif

	#ifndef BYTE_ORDER
	#define BYTE_ORDER LITTLE_ENDIAN
	#endif

	/* in port/win32env.c */
	extern int pgwin32_putenv(const char *);
	extern void pgwin32_unsetenv(const char *);

	#define putenv(x) pgwin32_putenv(x)
	#define unsetenv(x) pgwin32_unsetenv(x)

	/* Things that exist in MingW headers, but need to be added to MSVC & BCC */
	#ifdef WIN32_ONLY_COMPILER
	#ifndef _WIN64
	typedef long ssize_t;
	#else
	typedef __int64 ssize_t;
	#endif

	#ifndef __BORLANDC__
	typedef unsigned short mode_t;
	#endif

	/*
	* Certain "standard edition" versions of MSVC throw a warning
	* that later generates an error for "inline" statements, but
	* __inline seems to work. e.g. Microsoft Visual C++ .NET
	* Version 7.1.3088
	*/
	#define inline __inline
	#define __inline__ __inline

	#ifndef __BORLANDC__
	#define _S_IRWXU (_S_IREAD \| _S_IWRITE \| _S_IEXEC)
	#define _S_IXUSR _S_IEXEC
	#define _S_IWUSR _S_IWRITE
	#define _S_IRUSR _S_IREAD
	#define S_IRUSR _S_IRUSR
	#define S_IWUSR _S_IWUSR
	#define S_IXUSR _S_IXUSR
	#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
	#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
	#endif

	#define F_OK 0
	#define W_OK 2
	#define R_OK 4

	#define isinf(x) ((_fpclass(x) == _FPCLASS_PINF) \|\| (_fpclass(x) == _FPCLASS_NINF))
	#define isnan(x) _isnan(x)
	#define finite(x) _finite(x)

	/* Pulled from Makefile.port in mingw */
	#define DLSUFFIX ".dll"

	#ifdef __BORLANDC__

	/* for port/dirent.c */
	#ifndef INVALID_FILE_ATTRIBUTES
	#define INVALID_FILE_ATTRIBUTES ((DWORD) -1)
	#endif

	/* for port/open.c */
	#ifndef O_RANDOM
	#define O_RANDOM 0x0010 /* File access is primarily random */
	#define O_SEQUENTIAL 0x0020 /* File access is primarily sequential */
	#define O_TEMPORARY 0x0040 /* Temporary file bit */
	#define O_SHORT_LIVED 0x1000 /* Temporary storage file, try not to flush */
	#define _O_SHORT_LIVED O_SHORT_LIVED
	#endif /* ifndef O_RANDOM */

	#endif /* __BORLANDC__ */

	#endif