1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/persistentdata/persistentstorage/sql/SQLite364/mutex.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,73 @@
     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 1.9 2008/10/07 15:25:48 drh Exp $
    1.26 +*/
    1.27 +
    1.28 +
    1.29 +/*
    1.30 +** Figure out what version of the code to use.  The choices are
    1.31 +**
    1.32 +**   SQLITE_MUTEX_OMIT         No mutex logic.  Not even stubs.  The
    1.33 +**                             mutexes implemention cannot be overridden
    1.34 +**                             at start-time.
    1.35 +**
    1.36 +**   SQLITE_MUTEX_NOOP         For single-threaded applications.  No
    1.37 +**                             mutual exclusion is provided.  But this
    1.38 +**                             implementation can be overridden at
    1.39 +**                             start-time.
    1.40 +**
    1.41 +**   SQLITE_MUTEX_PTHREADS     For multi-threaded applications on Unix.
    1.42 +**
    1.43 +**   SQLITE_MUTEX_W32          For multi-threaded applications on Win32.
    1.44 +**
    1.45 +**   SQLITE_MUTEX_OS2          For multi-threaded applications on OS/2.
    1.46 +*/
    1.47 +#if !SQLITE_THREADSAFE
    1.48 +# define SQLITE_MUTEX_OMIT
    1.49 +#endif
    1.50 +#if SQLITE_THREADSAFE && !defined(SQLITE_MUTEX_NOOP)
    1.51 +#  if SQLITE_OS_UNIX
    1.52 +#    define SQLITE_MUTEX_PTHREADS
    1.53 +#  elif SQLITE_OS_WIN
    1.54 +#    define SQLITE_MUTEX_W32
    1.55 +#  elif SQLITE_OS_OS2
    1.56 +#    define SQLITE_MUTEX_OS2
    1.57 +#  else
    1.58 +#    define SQLITE_MUTEX_NOOP
    1.59 +#  endif
    1.60 +#endif
    1.61 +
    1.62 +#ifdef SQLITE_MUTEX_OMIT
    1.63 +/*
    1.64 +** If this is a no-op implementation, implement everything as macros.
    1.65 +*/
    1.66 +#define sqlite3_mutex_alloc(X)    ((sqlite3_mutex*)8)
    1.67 +#define sqlite3_mutex_free(X)
    1.68 +#define sqlite3_mutex_enter(X)
    1.69 +#define sqlite3_mutex_try(X)      SQLITE_OK
    1.70 +#define sqlite3_mutex_leave(X)
    1.71 +#define sqlite3_mutex_held(X)     1
    1.72 +#define sqlite3_mutex_notheld(X)  1
    1.73 +#define sqlite3MutexAlloc(X)      ((sqlite3_mutex*)8)
    1.74 +#define sqlite3MutexInit()        SQLITE_OK
    1.75 +#define sqlite3MutexEnd()
    1.76 +#endif /* defined(SQLITE_OMIT_MUTEX) */