src/os_win.h

   1 /*
   2 ** 2013 November 25
   3 **
   4 ** The author disclaims copyright to this source code.  In place of
   5 ** a legal notice, here is a blessing:
   6 **
   7 **    May you do good and not evil.
   8 **    May you find forgiveness for yourself and forgive others.
   9 **    May you share freely, never taking more than you give.
  10 **
  11 ******************************************************************************
  12 **
  13 ** This file contains code that is specific to Windows.
  14 */
  15 #ifndef SQLITE_OS_WIN_H
  16 #define SQLITE_OS_WIN_H
  17
  18 /*
  19 ** Include the primary Windows SDK header file.
  20 */
  21 #include "windows.h"
  22
  23 #ifdef __CYGWIN__
  24 # include <sys/cygwin.h>
  25 # include <errno.h> /* amalgamator: dontcache */
  26 #endif
  27
  28 /*
  29 ** Determine if we are dealing with Windows NT.
  30 **
  31 ** We ought to be able to determine if we are compiling for Windows 9x or
  32 ** Windows NT using the _WIN32_WINNT macro as follows:
  33 **
  34 ** #if defined(_WIN32_WINNT)
  35 ** # define SQLITE_OS_WINNT 1
  36 ** #else
  37 ** # define SQLITE_OS_WINNT 0
  38 ** #endif
  39 **
  40 ** However, Visual Studio 2005 does not set _WIN32_WINNT by default, as
  41 ** it ought to, so the above test does not work.  We'll just assume that
  42 ** everything is Windows NT unless the programmer explicitly says otherwise
  43 ** by setting SQLITE_OS_WINNT to 0.
  44 */
  45 #if SQLITE_OS_WIN && !defined(SQLITE_OS_WINNT)
  46 # define SQLITE_OS_WINNT 1
  47 #endif
  48
  49 /*
  50 ** Determine if we are dealing with Windows CE - which has a much reduced
  51 ** API.
  52 */
  53 #if defined(_WIN32_WCE)
  54 # define SQLITE_OS_WINCE 1
  55 #else
  56 # define SQLITE_OS_WINCE 0
  57 #endif
  58
  59 /*
  60 ** Determine if we are dealing with WinRT, which provides only a subset of
  61 ** the full Win32 API.
  62 */
  63 #if !defined(SQLITE_OS_WINRT)
  64 # define SQLITE_OS_WINRT 0
  65 #endif
  66
  67 /*
  68 ** For WinCE, some API function parameters do not appear to be declared as
  69 ** volatile.
  70 */
  71 #if SQLITE_OS_WINCE
  72 # define SQLITE_WIN32_VOLATILE
  73 #else
  74 # define SQLITE_WIN32_VOLATILE volatile
  75 #endif
  76
  77 /*
  78 ** For some Windows sub-platforms, the _beginthreadex() / _endthreadex()
  79 ** functions are not available (e.g. those not using MSVC, Cygwin, etc).
  80 */
  81 #if SQLITE_OS_WIN && !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && \
  82     SQLITE_THREADSAFE>0 && !defined(__CYGWIN__)
  83 # define SQLITE_OS_WIN_THREADS 1
  84 #else
  85 # define SQLITE_OS_WIN_THREADS 0
  86 #endif
  87
  88 #endif /* SQLITE_OS_WIN_H */