ESP8266
mem.h
1 /*
2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  * derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25  * OF SUCH DAMAGE.
26  *
27  * This file is part of the lwIP TCP/IP stack.
28  *
29  * Author: Adam Dunkels <adam@sics.se>
30  *
31  */
32 #ifndef __LWIP_MEM_H__
33 #define __LWIP_MEM_H__
34 
35 #include "lwip/opt.h"
36 #include "mem_manager.h"
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 #if MEM_LIBC_MALLOC
43 
44 #include <stddef.h> /* for size_t */
45 
46 typedef size_t mem_size_t;
47 
48 /* aliases for C library malloc() */
49 #define mem_init()
50 /* in case C library malloc() needs extra protection,
51  * allow these defines to be overridden.
52  */
53 #ifndef mem_free
54 #define mem_free(p) vPortFree(p, "", 0)
55 #endif
56 #ifndef mem_malloc
57 #define mem_malloc(s) pvPortMalloc(s, "", 0)
58 #endif
59 #ifndef mem_calloc
60 #define mem_calloc(s) pvPortCalloc(s, "", 0)
61 #endif
62 #ifndef mem_realloc
63 #define mem_realloc(p, s) pvPortRealloc(p, s, "", 0)
64 #endif
65 #ifndef mem_zalloc
66 #define mem_zalloc(s) pvPortZalloc(s, "", 0)
67 #endif
68 
69 #ifndef os_malloc
70 #define os_malloc(s) mem_malloc((s))
71 #endif
72 #ifndef os_realloc
73 #define os_realloc(p, s) mem_realloc((p), (s))
74 #endif
75 #ifndef os_zalloc
76 #define os_zalloc(s) mem_zalloc((s))
77 #endif
78 #ifndef os_free
79 #define os_free(p) mem_free((p))
80 #endif
81 
82 /* Since there is no C library allocation function to shrink memory without
83  moving it, define this to nothing. */
84 #ifndef mem_trim
85 #define mem_trim(mem, size) (mem)
86 #endif
87 #else /* MEM_LIBC_MALLOC */
88 
89 /* MEM_SIZE would have to be aligned, but using 64000 here instead of
90  * 65535 leaves some room for alignment...
91  */
92 #if MEM_SIZE > 64000l
93 typedef u32_t mem_size_t;
94 #define MEM_SIZE_F U32_F
95 #else
96 typedef u16_t mem_size_t;
97 #define MEM_SIZE_F U16_F
98 #endif /* MEM_SIZE > 64000 */
99 
100 #if MEM_USE_POOLS
101 
102 #define mem_init()
103 
105 #define mem_trim(mem, size) (mem)
106 #else /* MEM_USE_POOLS */
107 /* lwIP alternative malloc */
108 void mem_init(void)ICACHE_FLASH_ATTR;
109 void *mem_trim(void *mem, mem_size_t size)ICACHE_FLASH_ATTR;
110 #endif /* MEM_USE_POOLS */
111 void *mem_malloc(mem_size_t size)ICACHE_FLASH_ATTR;
112 void *mem_calloc(mem_size_t count, mem_size_t size)ICACHE_FLASH_ATTR;
113 void mem_free(void *mem)ICACHE_FLASH_ATTR;
114 #endif /* MEM_LIBC_MALLOC */
115 
120 #ifndef LWIP_MEM_ALIGN_SIZE
121 #define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
122 #endif
123 
128 #ifndef LWIP_MEM_ALIGN_BUFFER
129 #define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1))
130 #endif
131 
135 #ifndef LWIP_MEM_ALIGN
136 #define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
137 #endif
138 
139 #ifdef __cplusplus
140 }
141 #endif
142 
143 #endif /* __LWIP_MEM_H__ */