ucmndata.h | Explore in Territory

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
*   Copyright (C) 1999-2011, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
******************************************************************************/


/*----------------------------------------------------------------------------------
 *
 *   UCommonData   An abstract interface for dealing with ICU Common Data Files.
 *                 ICU Common Data Files are a grouping of a number of individual
 *                 data items (resources, converters, tables, anything) into a
 *                 single file or dll.  The combined format includes a table of
 *                 contents for locating the individual items by name.
 *
 *                 Two formats for the table of contents are supported, which is
 *                 why there is an abstract interface involved.
 *
 *                 These functions are part of the ICU internal implementation, and
 *                 are not intended to be used directly by applications.
 */

#ifndef __UCMNDATA_H__
#define __UCMNDATA_H__

#include "unicode/udata.h"
#include "umapfile.h"


#define COMMON_DATA_NAME …

MappedData;


DataHeader;

UDataOffsetTOCEntry;

UDataOffsetTOC;

/**
 * Get the header size from a const DataHeader *udh.
 * Handles opposite-endian data.
 *
 * @internal
 */
U_CFUNC uint16_t
udata_getHeaderSize(const DataHeader *udh);

/**
 * Get the UDataInfo.size from a const UDataInfo *info.
 * Handles opposite-endian data.
 *
 * @internal
 */
U_CFUNC uint16_t
udata_getInfoSize(const UDataInfo *info);

U_CDECL_BEGIN
/*
 *  "Virtual" functions for data lookup.
 *  To call one, given a UDataMemory *p, the code looks like this:
 *     p->vFuncs.Lookup(p, tocEntryName, pErrorCode);
 *          (I sure do wish this was written in C++, not C)
 */

LookupFn;

NumEntriesFn;

U_CDECL_END

commonDataFuncs;


/*
 *  Functions to check whether a UDataMemory refers to memory containing 
 *     a recognizable header and table of contents a Common Data Format
 *
 *     If a valid header and TOC are found,
 *         set the CommonDataFuncs function dispatch vector in the UDataMemory
 *             to point to the right functions for the TOC type.
 *     otherwise
 *         set an errorcode.
 */
U_CFUNC void udata_checkCommonData(UDataMemory *pData, UErrorCode *pErrorCode);

#endif
godot/thirdparty/icu4c/common/ucmndata.h
