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