acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_tlsf.h (3674B)
      1 #include "../lv_conf_internal.h"
      2 #if LV_MEM_CUSTOM == 0
      3 
      4 #ifndef LV_TLSF_H
      5 #define LV_TLSF_H
      6 
      7 /*
      8 ** Two Level Segregated Fit memory allocator, version 3.1.
      9 ** Written by Matthew Conte
     10 **  http://tlsf.baisoku.org
     11 **
     12 ** Based on the original documentation by Miguel Masmano:
     13 **  http://www.gii.upv.es/tlsf/main/docs
     14 **
     15 ** This implementation was written to the specification
     16 ** of the document, therefore no GPL restrictions apply.
     17 **
     18 ** Copyright (c) 2006-2016, Matthew Conte
     19 ** All rights reserved.
     20 **
     21 ** Redistribution and use in source and binary forms, with or without
     22 ** modification, are permitted provided that the following conditions are met:
     23 **     * Redistributions of source code must retain the above copyright
     24 **       notice, this list of conditions and the following disclaimer.
     25 **     * Redistributions in binary form must reproduce the above copyright
     26 **       notice, this list of conditions and the following disclaimer in the
     27 **       documentation and/or other materials provided with the distribution.
     28 **     * Neither the name of the copyright holder nor the
     29 **       names of its contributors may be used to endorse or promote products
     30 **       derived from this software without specific prior written permission.
     31 **
     32 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     33 ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     34 ** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     35 ** DISCLAIMED. IN NO EVENT SHALL MATTHEW CONTE BE LIABLE FOR ANY
     36 ** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     37 ** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     38 ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     39 ** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     40 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     41 ** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     42 */
     43 
     44 #include <stddef.h>
     45 
     46 #if defined(__cplusplus)
     47 extern "C" {
     48 #endif
     49 
     50 /* lv_tlsf_t: a TLSF structure. Can contain 1 to N pools. */
     51 /* lv_pool_t: a block of memory that TLSF can manage. */
     52 typedef void * lv_tlsf_t;
     53 typedef void * lv_pool_t;
     54 
     55 /* Create/destroy a memory pool. */
     56 lv_tlsf_t lv_tlsf_create(void * mem);
     57 lv_tlsf_t lv_tlsf_create_with_pool(void * mem, size_t bytes);
     58 void lv_tlsf_destroy(lv_tlsf_t tlsf);
     59 lv_pool_t lv_tlsf_get_pool(lv_tlsf_t tlsf);
     60 
     61 /* Add/remove memory pools. */
     62 lv_pool_t lv_tlsf_add_pool(lv_tlsf_t tlsf, void * mem, size_t bytes);
     63 void lv_tlsf_remove_pool(lv_tlsf_t tlsf, lv_pool_t pool);
     64 
     65 /* malloc/memalign/realloc/free replacements. */
     66 void * lv_tlsf_malloc(lv_tlsf_t tlsf, size_t bytes);
     67 void * lv_tlsf_memalign(lv_tlsf_t tlsf, size_t align, size_t bytes);
     68 void * lv_tlsf_realloc(lv_tlsf_t tlsf, void * ptr, size_t size);
     69 void lv_tlsf_free(lv_tlsf_t tlsf, const void * ptr);
     70 
     71 /* Returns internal block size, not original request size */
     72 size_t lv_tlsf_block_size(void * ptr);
     73 
     74 /* Overheads/limits of internal structures. */
     75 size_t lv_tlsf_size(void);
     76 size_t lv_tlsf_align_size(void);
     77 size_t lv_tlsf_block_size_min(void);
     78 size_t lv_tlsf_block_size_max(void);
     79 size_t lv_tlsf_pool_overhead(void);
     80 size_t lv_tlsf_alloc_overhead(void);
     81 
     82 /* Debugging. */
     83 typedef void (*lv_tlsf_walker)(void * ptr, size_t size, int used, void * user);
     84 void lv_tlsf_walk_pool(lv_pool_t pool, lv_tlsf_walker walker, void * user);
     85 /* Returns nonzero if any internal consistency check fails. */
     86 int lv_tlsf_check(lv_tlsf_t tlsf);
     87 int lv_tlsf_check_pool(lv_pool_t pool);
     88 
     89 #if defined(__cplusplus)
     90 };
     91 #endif
     92 
     93 #endif /*LV_TLSF_H*/
     94 
     95 #endif /* LV_MEM_CUSTOM == 0 */