1 /* Copyright (C) 2009 The Android Open Source Project 2 ** 3 ** This software is licensed under the terms of the GNU General Public 4 ** License version 2, as published by the Free Software Foundation, and 5 ** may be copied, distributed, and modified under those terms. 6 ** 7 ** This program is distributed in the hope that it will be useful, 8 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 9 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 ** GNU General Public License for more details. 11 */ 12 #ifndef _ANDROID_UTILS_VECTOR_H 13 #define _ANDROID_UTILS_VECTOR_H 14 15 #include "android/utils/system.h" 16 #include "android/utils/assert.h" 17 18 #define AVECTOR_DECL(ctype,name) \ 19 ctype* name; \ 20 unsigned num_##name; \ 21 unsigned max_##name \ 22 23 #define AVECTOR_SIZE(obj,name) \ 24 (obj)->num_##name 25 26 #define AVECTOR_INIT(obj,name) \ 27 do { \ 28 (obj)->name = NULL; \ 29 (obj)->num_##name = 0; \ 30 (obj)->max_##name = 0; \ 31 } while (0) 32 33 #define AVECTOR_INIT_ALLOC(obj,name,count) \ 34 do { \ 35 AARRAY_NEW0( (obj)->name, (count) ); \ 36 (obj)->num_##name = 0; \ 37 (obj)->max_##name = (count); \ 38 } while (0) 39 40 #define AVECTOR_DONE(obj,name) \ 41 do { \ 42 AFREE((obj)->name); \ 43 (obj)->num_##name = 0; \ 44 (obj)->max_##name = 0; \ 45 } while (0) 46 47 #define AVECTOR_CLEAR(obj,name) \ 48 do { \ 49 (obj)->num_##name = 0; \ 50 } while (0) 51 52 #define AVECTOR_AT(obj,name,index) \ 53 (&(obj)->name[(index)]) 54 55 #define AVECTOR_REALLOC(obj,name,newMax) \ 56 do { \ 57 AARRAY_RENEW((obj)->name,newMax); \ 58 (obj)->max_##name = (newMax); \ 59 } while(0) 60 61 #define AVECTOR_ENSURE(obj,name,newCount) \ 62 do { \ 63 unsigned _newCount = (newCount); \ 64 if (_newCount > (obj)->max_##name) \ 65 AASSERT_LOC(); \ 66 _avector_ensure( (void**)&(obj)->name, sizeof((obj)->name[0]), \ 67 &(obj)->max_##name, _newCount ); \ 68 } while (0); 69 70 extern void _avector_ensure( void** items, size_t itemSize, 71 unsigned* pMaxItems, unsigned newCount ); 72 73 #define AVECTOR_FOREACH(obj,name,itemptr,statement) \ 74 do { \ 75 unsigned __vector_nn = 0; \ 76 unsigned __vector_max = (obj)->num_##name; \ 77 for ( ; __vector_nn < __vector_max; __vector_nn++ ) { \ 78 itemptr = &(obj)->name[__vector_nn]; \ 79 statement; \ 80 } \ 81 } while (0); 82 83 /* */ 84 85 #endif /* _ANDROID_UTILS_VECTOR_H */ 86