1 /* 2 This file is part of UFFS, the Ultra-low-cost Flash File System. 3 4 Copyright (C) 2005-2009 Ricky Zheng <[email protected]> 5 6 UFFS is free software; you can redistribute it and/or modify it under 7 the GNU Library General Public License as published by the Free Software 8 Foundation; either version 2 of the License, or (at your option) any 9 later version. 10 11 UFFS is distributed in the hope that it will be useful, but WITHOUT 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 or GNU Library General Public License, as applicable, for more details. 15 16 You should have received a copy of the GNU General Public License 17 and GNU Library General Public License along with UFFS; if not, write 18 to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 Boston, MA 02110-1301, USA. 20 21 As a special exception, if other files instantiate templates or use 22 macros or inline functions from this file, or you compile this file 23 and link it with other works to produce a work based on this file, 24 this file does not by itself cause the resulting work to be covered 25 by the GNU General Public License. However the source code for this 26 file must still be made available in accordance with section (3) of 27 the GNU General Public License v2. 28 29 This exception does not invalidate any other reasons why a work based 30 on this file might be covered by the GNU General Public License. 31 */ 32 33 #ifndef _UFFS_MEM_H_ 34 #define _UFFS_MEM_H_ 35 36 #include "uffs/uffs_device.h" 37 38 #ifdef __cplusplus 39 extern "C"{ 40 #endif 41 42 /** uffs memory allocator */ 43 typedef struct uffs_memAllocatorSt { 44 URET (*init)(struct uffs_DeviceSt *dev); //!< init memory allocator, setup buffer sizes 45 URET (*release)(struct uffs_DeviceSt *dev); //!< release memory allocator (for dynamic memory allocation) 46 47 void * (*malloc)(struct uffs_DeviceSt *dev, unsigned int size); //!< allocate memory (for dynamic memory allocation) 48 URET (*free)(struct uffs_DeviceSt *dev, void *p); //!< free memory (for dynamic memory allocation) 49 50 void * blockinfo_pool_buf; //!< block info cache buffers 51 void * pagebuf_pool_buf; //!< page buffers 52 void * tree_nodes_pool_buf; //!< tree nodes buffer 53 void * spare_pool_buf; //!< spare buffers 54 55 int blockinfo_pool_size; //!< block info cache buffers size 56 int pagebuf_pool_size; //!< page buffers size 57 int tree_nodes_pool_size; //!< tree nodes buffer size 58 int spare_pool_size; //!< spare buffer pool size 59 60 uffs_Pool tree_pool; 61 uffs_Pool spare_pool; 62 63 int spare_data_size; //!< spare size consumed by UFFS, 64 //!< calculated by UFFS according to the layout information. 65 66 /* for static memory allocator */ 67 char *buf_start; 68 int buf_size; 69 int pos; 70 71 72 } uffs_MemAllocator; 73 74 void uffs_MemSetupSystemAllocator(uffs_MemAllocator *allocator); 75 void uffs_MemSetupStaticAllocator(uffs_MemAllocator *allocator, void *pool, int size); 76 77 #ifdef __cplusplus 78 } 79 #endif 80 81 82 #endif 83 84