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mem.h
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1 /**
2  * @file
3  * Heap API
4  */
5 
6 /*
7  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
8  * All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without modification,
11  * are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright notice,
14  * this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  * 3. The name of the author may not be used to endorse or promote products
19  * derived from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30  * OF SUCH DAMAGE.
31  *
32  * This file is part of the lwIP TCP/IP stack.
33  *
34  * Author: Adam Dunkels <adam@sics.se>
35  *
36  */
37 #ifndef LWIP_HDR_MEM_H
38 #define LWIP_HDR_MEM_H
39 
40 #include "lwip/opt.h"
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 #if MEM_LIBC_MALLOC
47 
48 #include "lwip/arch.h"
49 
50 typedef size_t mem_size_t;
51 #define MEM_SIZE_F SZT_F
52 
53 #elif MEM_USE_POOLS
54 
55 typedef u16_t mem_size_t;
56 #define MEM_SIZE_F U16_F
57 
58 #else
59 
60 /* MEM_SIZE would have to be aligned, but using 64000 here instead of
61  * 65535 leaves some room for alignment...
62  */
63 #if MEM_SIZE > 64000L
64 typedef u32_t mem_size_t;
65 #define MEM_SIZE_F U32_F
66 #else
67 typedef u16_t mem_size_t;
68 #define MEM_SIZE_F U16_F
69 #endif /* MEM_SIZE > 64000 */
70 #endif
71 
72 void mem_init(void);
73 void *mem_trim(void *mem, mem_size_t size);
74 void *mem_malloc(mem_size_t size);
75 void *mem_calloc(mem_size_t count, mem_size_t size);
76 void mem_free(void *mem);
77 
78 #ifdef __cplusplus
79 }
80 #endif
81 
82 #endif /* LWIP_HDR_MEM_H */
opt.h
lwIP Options Configuration
arch.h
Support for different processor and compiler architectures.
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