1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/persistentdata/persistentstorage/sql/SQLite/mutex.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,85 @@
     1.4 +/*
     1.5 +** 2007 August 28
     1.6 +**
     1.7 +** The author disclaims copyright to this source code.  In place of
     1.8 +** a legal notice, here is a blessing:
     1.9 +**
    1.10 +**    May you do good and not evil.
    1.11 +**    May you find forgiveness for yourself and forgive others.
    1.12 +**    May you share freely, never taking more than you give.
    1.13 +**
    1.14 +*************************************************************************
    1.15 +**
    1.16 +** This file contains the common header for all mutex implementations.
    1.17 +** The sqliteInt.h header #includes this file so that it is available
    1.18 +** to all source files.  We break it out in an effort to keep the code
    1.19 +** better organized.
    1.20 +**
    1.21 +** NOTE:  source files should *not* #include this header file directly.
    1.22 +** Source files should #include the sqliteInt.h file and let that file
    1.23 +** include this one indirectly.
    1.24 +**
    1.25 +** $Id: mutex.h,v 1.8 2008/06/26 10:41:19 danielk1977 Exp $
    1.26 +*/
    1.27 +
    1.28 +
    1.29 +#ifdef SQLITE_MUTEX_APPDEF
    1.30 +/*
    1.31 +** If SQLITE_MUTEX_APPDEF is defined, then this whole module is
    1.32 +** omitted and equivalent functionality must be provided by the
    1.33 +** application that links against the SQLite library.
    1.34 +*/
    1.35 +#else
    1.36 +/*
    1.37 +** Figure out what version of the code to use.  The choices are
    1.38 +**
    1.39 +**   SQLITE_MUTEX_NOOP         For single-threaded applications that
    1.40 +**                             do not desire error checking.
    1.41 +**
    1.42 +**   SQLITE_MUTEX_NOOP_DEBUG   For single-threaded applications with
    1.43 +**                             error checking to help verify that mutexes
    1.44 +**                             are being used correctly even though they
    1.45 +**                             are not needed.  Used when SQLITE_DEBUG is
    1.46 +**                             defined on single-threaded builds.
    1.47 +**
    1.48 +**   SQLITE_MUTEX_PTHREADS     For multi-threaded applications on Unix.
    1.49 +**
    1.50 +**   SQLITE_MUTEX_W32          For multi-threaded applications on Win32.
    1.51 +**
    1.52 +**   SQLITE_MUTEX_OS2          For multi-threaded applications on OS/2.
    1.53 +*/
    1.54 +#define SQLITE_MUTEX_NOOP 1   /* The default */
    1.55 +#if defined(SQLITE_DEBUG) && !SQLITE_THREADSAFE
    1.56 +# undef SQLITE_MUTEX_NOOP
    1.57 +# define SQLITE_MUTEX_NOOP_DEBUG
    1.58 +#endif
    1.59 +#if defined(SQLITE_MUTEX_NOOP) && SQLITE_THREADSAFE && SQLITE_OS_UNIX
    1.60 +# undef SQLITE_MUTEX_NOOP
    1.61 +# define SQLITE_MUTEX_PTHREADS
    1.62 +#endif
    1.63 +#if defined(SQLITE_MUTEX_NOOP) && SQLITE_THREADSAFE && SQLITE_OS_WIN
    1.64 +# undef SQLITE_MUTEX_NOOP
    1.65 +# define SQLITE_MUTEX_W32
    1.66 +#endif
    1.67 +#if defined(SQLITE_MUTEX_NOOP) && SQLITE_THREADSAFE && SQLITE_OS_OS2
    1.68 +# undef SQLITE_MUTEX_NOOP
    1.69 +# define SQLITE_MUTEX_OS2
    1.70 +#endif
    1.71 +
    1.72 +#ifdef SQLITE_MUTEX_NOOP
    1.73 +/*
    1.74 +** If this is a no-op implementation, implement everything as macros.
    1.75 +*/
    1.76 +#define sqlite3_mutex_alloc(X)    ((sqlite3_mutex*)8)
    1.77 +#define sqlite3_mutex_free(X)
    1.78 +#define sqlite3_mutex_enter(X)
    1.79 +#define sqlite3_mutex_try(X)      SQLITE_OK
    1.80 +#define sqlite3_mutex_leave(X)
    1.81 +#define sqlite3_mutex_held(X)     1
    1.82 +#define sqlite3_mutex_notheld(X)  1
    1.83 +#define sqlite3MutexAlloc(X)      ((sqlite3_mutex*)8)
    1.84 +#define sqlite3MutexInit()        SQLITE_OK
    1.85 +#define sqlite3MutexEnd()
    1.86 +#endif
    1.87 +
    1.88 +#endif /* SQLITE_MUTEX_APPDEF */