1 /* 2 ****************************************************************************** 3 * 4 * Copyright (C) 1997-2003, International Business Machines 5 * Corporation and others. All Rights Reserved. 6 * 7 ****************************************************************************** 8 * 9 * File CMEMORY.H 10 * 11 * Contains stdlib.h/string.h memory functions 12 * 13 * @author Bertrand A. Damiba 14 * 15 * Modification History: 16 * 17 * Date Name Description 18 * 6/20/98 Bertrand Created. 19 * 05/03/99 stephen Changed from functions to macros. 20 * 21 ****************************************************************************** 22 */ 23 24 #ifndef CMEMORY_H 25 #define CMEMORY_H 26 27 #include "unicode/utypes.h" 28 #include <string.h> 29 30 31 #define uprv_memcpy(dst, src, size) U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size) 32 #define uprv_memmove(dst, src, size) U_STANDARD_CPP_NAMESPACE memmove(dst, src, size) 33 #define uprv_memset(buffer, mark, size) U_STANDARD_CPP_NAMESPACE memset(buffer, mark, size) 34 #define uprv_memcmp(buffer1, buffer2, size) U_STANDARD_CPP_NAMESPACE memcmp(buffer1, buffer2,size) 35 36 U_CAPI void * U_EXPORT2 37 uprv_malloc(size_t s); 38 39 U_CAPI void * U_EXPORT2 40 uprv_realloc(void *mem, size_t size); 41 42 U_CAPI void U_EXPORT2 43 uprv_free(void *mem); 44 45 /** 46 * This should align the memory properly on any machine. 47 * This is very useful for the safeClone functions. 48 */ 49 typedef union { 50 long t1; 51 double t2; 52 void *t3; 53 } UAlignedMemory; 54 55 /** 56 * Get the amount of bytes that a pointer is off by from 57 * the previous aligned pointer 58 */ 59 #define U_ALIGNMENT_OFFSET(ptr) (((size_t)ptr) & (sizeof(UAlignedMemory) - 1)) 60 61 /** 62 * Get the amount of bytes to add to a pointer 63 * in order to get the next aligned address 64 */ 65 #define U_ALIGNMENT_OFFSET_UP(ptr) (sizeof(UAlignedMemory) - U_ALIGNMENT_OFFSET(ptr)) 66 67 /** 68 * Indicate whether the ICU allocation functions have been used. 69 * This is used to determine whether ICU is in an initial, unused state. 70 */ 71 U_CFUNC UBool 72 cmemory_inUse(void); 73 74 /** 75 * Heap clean up function, called from u_cleanup() 76 * Clears any user heap functions from u_setMemoryFunctions() 77 * Does NOT deallocate any remaining allocated memory. 78 */ 79 U_CFUNC UBool 80 cmemory_cleanup(void); 81 82 #endif 83