1 // Copyright (C) 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ****************************************************************************** 5 * 6 * Copyright (C) 1999-2010, International Business Machines 7 * Corporation and others. All Rights Reserved. 8 * 9 ******************************************************************************/ 10 11 12 /*---------------------------------------------------------------------------------- 13 * 14 * UDataMemory A class-like struct that serves as a handle to a piece of memory 15 * that contains some ICU data (resource, converters, whatever.) 16 * 17 * When an application opens ICU data (with udata_open, for example, 18 * a UDataMemory * is returned. 19 * 20 *----------------------------------------------------------------------------------*/ 21 #ifndef __UDATAMEM_H__ 22 #define __UDATAMEM_H__ 23 24 #include "unicode/udata.h" 25 #include "ucmndata.h" 26 27 struct UDataMemory { 28 const commonDataFuncs *vFuncs; /* Function Pointers for accessing TOC */ 29 30 const DataHeader *pHeader; /* Header of the memory being described by this */ 31 /* UDataMemory object. */ 32 const void *toc; /* For common memory, table of contents for */ 33 /* the pieces within. */ 34 UBool heapAllocated; /* True if this UDataMemory Object is on the */ 35 /* heap and thus needs to be deleted when closed. */ 36 37 void *mapAddr; /* For mapped or allocated memory, the start addr. */ 38 /* Only non-null if a close operation should unmap */ 39 /* the associated data. */ 40 void *map; /* Handle, or other data, OS dependent. */ 41 /* Only non-null if a close operation should unmap */ 42 /* the associated data, and additional info */ 43 /* beyond the mapAddr is needed to do that. */ 44 int32_t length; /* Length of the data in bytes; -1 if unknown. */ 45 }; 46 47 U_CFUNC UDataMemory *UDataMemory_createNewInstance(UErrorCode *pErr); 48 U_CFUNC void UDatamemory_assign (UDataMemory *dest, UDataMemory *source); 49 U_CFUNC void UDataMemory_init (UDataMemory *This); 50 U_CFUNC UBool UDataMemory_isLoaded(const UDataMemory *This); 51 U_CFUNC void UDataMemory_setData (UDataMemory *This, const void *dataAddr); 52 53 U_CFUNC const DataHeader *UDataMemory_normalizeDataPointer(const void *p); 54 55 U_CAPI int32_t U_EXPORT2 56 udata_getLength(const UDataMemory *pData); 57 58 U_CAPI const void * U_EXPORT2 59 udata_getRawMemory(const UDataMemory *pData); 60 61 #endif 62
