michael@0: /*
michael@0: ******************************************************************************
michael@0: *
michael@0: *   Copyright (C) 1999-2011, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *
michael@0: ******************************************************************************/
michael@0: 
michael@0: /*----------------------------------------------------------------------------------
michael@0:  *
michael@0:  *       Memory mapped file wrappers for use by the ICU Data Implementation
michael@0:  *
michael@0:  *           Porting note:  The implementation of these functions is very platform specific.
michael@0:  *             Not all platforms can do real memory mapping.  Those that can't
michael@0:  *             still must implement these functions, getting the data into memory using
michael@0:  *             whatever means are available.
michael@0:  *
michael@0:  *            These functions are part of the ICU internal implementation, and
michael@0:  *            are not inteded to be used directly by applications.
michael@0:  *
michael@0:  *----------------------------------------------------------------------------------*/
michael@0: 
michael@0: #ifndef __UMAPFILE_H__
michael@0: #define __UMAPFILE_H__
michael@0: 
michael@0: #include "unicode/putil.h"
michael@0: #include "unicode/udata.h"
michael@0: #include "putilimp.h"
michael@0: 
michael@0: U_CFUNC UBool uprv_mapFile(UDataMemory *pdm, const char *path);
michael@0: U_CFUNC void  uprv_unmapFile(UDataMemory *pData);
michael@0: 
michael@0: /* MAP_NONE: no memory mapping, no file access at all */
michael@0: #define MAP_NONE        0
michael@0: #define MAP_WIN32       1
michael@0: #define MAP_POSIX       2
michael@0: #define MAP_STDIO       3
michael@0: #define MAP_390DLL      4
michael@0: 
michael@0: #if UCONFIG_NO_FILE_IO
michael@0: #   define MAP_IMPLEMENTATION MAP_NONE
michael@0: #elif U_PLATFORM_USES_ONLY_WIN32_API
michael@0: #   define MAP_IMPLEMENTATION MAP_WIN32
michael@0: #elif U_HAVE_MMAP || U_PLATFORM == U_PF_OS390
michael@0: #   if U_PLATFORM == U_PF_OS390 && defined (OS390_STUBDATA)
michael@0:         /*   No memory mapping for 390 batch mode.  Fake it using dll loading.  */
michael@0: #       define MAP_IMPLEMENTATION MAP_390DLL
michael@0: #   else
michael@0: #       define MAP_IMPLEMENTATION MAP_POSIX
michael@0: #   endif
michael@0: #else /* unknown platform, no memory map implementation: use stdio.h and uprv_malloc() instead */
michael@0: #   define MAP_IMPLEMENTATION MAP_STDIO
michael@0: #endif
michael@0: 
michael@0: #endif