Bluetooth LE Stack
Select one of the symbols to view example projects that use it.
 
Outline
#define BTSTACK_FILE__
#include "btstack_memory_pool.h"
#include <stddef.h>
#include "btstack_debug.h"
node
btstack_memory_pool_create(btstack_memory_pool_t *, void *, int, int)
btstack_memory_pool_get(btstack_memory_pool_t *)
btstack_memory_pool_free(btstack_memory_pool_t *, void *)
Files
loading...
SourceVuRaspberry Pi Pico SDK and ExamplesBluetooth LE Stacksrc/btstack_memory_pool.c
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/* * Copyright (C) 2014 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * *//* ... */ #define BTSTACK_FILE__ "btstack_memory_pool.c" /* * btstack_memory_pool.c * * Fixed-size block allocation * * Free blocks are kept in singly linked list * *//* ... */ #include "btstack_memory_pool.h" #include <stddef.h> #include "btstack_debug.h" typedef struct node { struct node * next; ...} node_t; void btstack_memory_pool_create(btstack_memory_pool_t *pool, void * storage, int count, int block_size){ node_t *free_blocks = (node_t*) pool; char *mem_ptr = (char *) storage; int i; // create singly linked list of all available blocks free_blocks->next = NULL; for (i = 0 ; i < count ; i++){ btstack_memory_pool_free(pool, mem_ptr); mem_ptr += block_size; }for (i = 0 ; i < count ; i++) { ... } }{ ... } void * btstack_memory_pool_get(btstack_memory_pool_t *pool){ node_t *free_blocks = (node_t*) pool; if (!free_blocks->next) return NULL; // remove first node_t *node = free_blocks->next; free_blocks->next = node->next; return (void*) node; }{ ... } void btstack_memory_pool_free(btstack_memory_pool_t *pool, void * block){ node_t *free_blocks = (node_t*) pool; node_t *node = (node_t*) block; // assert that node is not already in list node_t * it; for (it = free_blocks->next; it != NULL; it = it->next){ btstack_assert(it != node); }for (it = free_blocks->next; it != NULL; it = it->next) { ... } // add block as node to list node->next = free_blocks->next; free_blocks->next = node; }{ ... }
Details
Show:
from
Types: Columns: