win_db.h

/*-
 * $Id: win_db.h,v 12.77 2005/11/12 17:43:39 bostic Exp $
 *
 * The following provides the information necessary to build Berkeley
 * DB on native Windows, and other Windows environments such as MinGW.
 */

/*
 * Avoid warnings with Visual Studio 8.
 */
#define _CRT_SECURE_NO_DEPRECATE 1

#include <sys/types.h>
#include <sys/stat.h>

#include <direct.h>
#include <fcntl.h>
#include <io.h>
#include <limits.h>
#include <memory.h>
#include <process.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>
#include <time.h>
#include <errno.h>

/*
 * To build Tcl interface libraries, the include path must be configured to
 * use the directory containing <tcl.h>, usually the include directory in
 * the Tcl distribution.
 */
#ifdef DB_TCL_SUPPORT
#include <tcl.h>
#endif

#define WIN32_LEAN_AND_MEAN
#include <windows.h>

/*
 * All of the necessary includes have been included, ignore the #includes
 * in the Berkeley DB source files.
 */
#define NO_SYSTEM_INCLUDES

/*
 * Microsoft's C runtime library has fsync, getcwd, getpid, snprintf and
 * vsnprintf, but under different names.
 */
#define fsync                   _commit
#define getcwd(buf, size)       _getcwd(buf, size)
#define getpid                  _getpid
#define snprintf                _snprintf
#define vsnprintf               _vsnprintf

/*
 * Windows defines off_t to long (i.e., 32 bits).
 */
#define off_t   __db_off_t
typedef __int64 off_t;

/*
 * Win32 does not define getopt and friends in any header file, so we must.
 */
#if defined(__cplusplus)
extern "C" {
#endif
extern int optind;
extern char *optarg;
extern int getopt(int, char * const *, const char *);
#if defined(__cplusplus)
}
#endif

#ifdef _UNICODE
#define TO_TSTRING(dbenv, s, ts, ret) do {                              \
                int __len = (int)strlen(s) + 1;                         \
                ts = NULL;                                              \
                if ((ret = __os_malloc((dbenv),                         \
                    __len * sizeof (_TCHAR), &(ts))) == 0 &&            \
                    MultiByteToWideChar(CP_UTF8, 0,                     \
                    (s), -1, (ts), __len) == 0)                         \
                        ret = __os_get_errno();                         \
        } while (0)

#define FROM_TSTRING(dbenv, ts, s, ret) {                               \
                int __len = WideCharToMultiByte(CP_UTF8, 0, ts, -1,     \
                    NULL, 0, NULL, NULL);                               \
                s = NULL;                                               \
                if ((ret = __os_malloc((dbenv), __len, &(s))) == 0 &&   \
                    WideCharToMultiByte(CP_UTF8, 0,                     \
                    (ts), -1, (s), __len, NULL, NULL) == 0)             \
                        ret = __os_get_errno();                         \
        } while (0)

#define FREE_STRING(dbenv, s) do {                                      \
                if ((s) != NULL) {                                      \
                        __os_free((dbenv), (s));                        \
                        (s) = NULL;                                     \
                }                                                       \
        } while (0)

#else
#define TO_TSTRING(dbenv, s, ts, ret) (ret) = 0, (ts) = (_TCHAR *)(s)
#define FROM_TSTRING(dbenv, ts, s, ret) (ret) = 0, (s) = (char *)(ts)
#define FREE_STRING(dbenv, ts)
#endif

#ifndef INVALID_HANDLE_VALUE
#define INVALID_HANDLE_VALUE ((HANDLE)-1)
#endif

#ifndef INVALID_FILE_ATTRIBUTES
#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
#endif

#ifndef INVALID_SET_FILE_POINTER
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif

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