| | 1 | // © 2016 and later: Unicode, Inc. and others. |
| | 2 | // License & terms of use: http://www.unicode.org/copyright.html |
| | 3 | /* |
| | 4 | ****************************************************************************** |
| | 5 | * |
| | 6 | * Copyright (C) 1999-2011, International Business Machines |
| | 7 | * Corporation and others. All Rights Reserved. |
| | 8 | * |
| | 9 | ******************************************************************************/ |
| | 10 | |
| | 11 | /*---------------------------------------------------------------------------------- |
| | 12 | * |
| | 13 | * Memory mapped file wrappers for use by the ICU Data Implementation |
| | 14 | * |
| | 15 | * Porting note: The implementation of these functions is very platform specific. |
| | 16 | * Not all platforms can do real memory mapping. Those that can't |
| | 17 | * still must implement these functions, getting the data into memory using |
| | 18 | * whatever means are available. |
| | 19 | * |
| | 20 | * These functions are part of the ICU internal implementation, and |
| | 21 | * are not inteded to be used directly by applications. |
| | 22 | * |
| | 23 | *----------------------------------------------------------------------------------*/ |
| | 24 | |
| | 25 | #ifndef __UMAPFILE_H__ |
| | 26 | #define __UMAPFILE_H__ |
| | 27 | |
| | 28 | #include "unicode/putil.h" |
| | 29 | #include "unicode/udata.h" |
| | 30 | #include "putilimp.h" |
| | 31 | |
| | 32 | U_CFUNC UBool uprv_mapFile(UDataMemory *pdm, const char *path, UErrorCode *status); |
| | 33 | U_CFUNC void uprv_unmapFile(UDataMemory *pData); |
| | 34 | |
| | 35 | /* MAP_NONE: no memory mapping, no file access at all */ |
| | 36 | #define MAP_NONE 0 |
| | 37 | #define MAP_WIN32 1 |
| | 38 | #define MAP_POSIX 2 |
| | 39 | #define MAP_STDIO 3 |
| | 40 | #define MAP_390DLL 4 |
| | 41 | |
| | 42 | #if UCONFIG_NO_FILE_IO |
| | 43 | # define MAP_IMPLEMENTATION MAP_NONE |
| | 44 | #elif U_PLATFORM_USES_ONLY_WIN32_API |
| | 45 | # define MAP_IMPLEMENTATION MAP_WIN32 |
| | 46 | #elif U_HAVE_MMAP || U_PLATFORM == U_PF_OS390 |
| | 47 | # if U_PLATFORM == U_PF_OS390 && defined (OS390_STUBDATA) |
| | 48 | /* No memory mapping for 390 batch mode. Fake it using dll loading. */ |
| | 49 | # define MAP_IMPLEMENTATION MAP_390DLL |
| | 50 | # else |
| | 51 | # define MAP_IMPLEMENTATION MAP_POSIX |
| | 52 | # endif |
| | 53 | #else /* unknown platform, no memory map implementation: use stdio.h and uprv_malloc() instead */ |
| | 54 | # define MAP_IMPLEMENTATION MAP_STDIO |
| | 55 | #endif |
| | 56 | |
| | 57 | #endif |
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