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6e6d4a8b JP |
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 | ||
33 | #ifndef __LWIP_MEMP_H__ | |
34 | #define __LWIP_MEMP_H__ | |
35 | ||
36 | #include "lwip/opt.h" | |
37 | ||
38 | #ifdef __cplusplus | |
39 | extern "C" { | |
40 | #endif | |
41 | ||
42 | /* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */ | |
43 | typedef enum { | |
44 | #define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name, | |
45 | #include "lwip/memp_std.h" | |
46 | MEMP_MAX | |
47 | } memp_t; | |
48 | ||
49 | #if MEM_USE_POOLS | |
50 | /* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */ | |
51 | typedef enum { | |
52 | /* Get the first (via: | |
53 | MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/ | |
54 | MEMP_POOL_HELPER_FIRST = ((u8_t) | |
55 | #define LWIP_MEMPOOL(name,num,size,desc) | |
56 | #define LWIP_MALLOC_MEMPOOL_START 1 | |
57 | #define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0 | |
58 | #define LWIP_MALLOC_MEMPOOL_END | |
59 | #include "lwip/memp_std.h" | |
60 | ) , | |
61 | /* Get the last (via: | |
62 | MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */ | |
63 | MEMP_POOL_HELPER_LAST = ((u8_t) | |
64 | #define LWIP_MEMPOOL(name,num,size,desc) | |
65 | #define LWIP_MALLOC_MEMPOOL_START | |
66 | #define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size * | |
67 | #define LWIP_MALLOC_MEMPOOL_END 1 | |
68 | #include "lwip/memp_std.h" | |
69 | ) | |
70 | } memp_pool_helper_t; | |
71 | ||
72 | /* The actual start and stop values are here (cast them over) | |
73 | We use this helper type and these defines so we can avoid using const memp_t values */ | |
74 | #define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST) | |
75 | #define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST) | |
76 | ||
77 | extern const u16_t memp_sizes[MEMP_MAX]; | |
78 | #endif /* MEM_USE_POOLS */ | |
79 | ||
80 | void memp_init(void); | |
81 | ||
82 | #if MEMP_OVERFLOW_CHECK | |
83 | void *memp_malloc_fn(memp_t type, const char* file, const int line); | |
84 | #define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__) | |
85 | #else | |
86 | void *memp_malloc(memp_t type); | |
87 | #endif | |
88 | void memp_free(memp_t type, void *mem); | |
89 | ||
90 | #ifdef __cplusplus | |
91 | } | |
92 | #endif | |
93 | ||
94 | #endif /* __LWIP_MEMP_H__ */ |