source: UsbWattMeter/trunk/lwip-1.4.1/src/include/lwip/memp.h@ 164

Last change on this file since 164 was 164, checked in by coas-nagasima, 7 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

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  • Property svn:keywords set to Id
  • Property svn:mime-type set to text/x-chdr
File size: 3.9 KB
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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
39extern "C" {
40#endif
41
42/* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */
43typedef 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 */
51typedef 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#endif /* MEM_USE_POOLS */
77
78#if MEMP_MEM_MALLOC || MEM_USE_POOLS
79extern const u16_t memp_sizes[MEMP_MAX];
80#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */
81
82#if MEMP_MEM_MALLOC
83
84#include "mem.h"
85
86#define memp_init()
87#define memp_malloc(type) mem_malloc(memp_sizes[type])
88#define memp_free(type, mem) mem_free(mem)
89
90#else /* MEMP_MEM_MALLOC */
91
92#if MEM_USE_POOLS
93/** This structure is used to save the pool one element came from. */
94struct memp_malloc_helper
95{
96 memp_t poolnr;
97};
98#endif /* MEM_USE_POOLS */
99
100void memp_init(void);
101
102#if MEMP_OVERFLOW_CHECK
103void *memp_malloc_fn(memp_t type, const char* file, const int line);
104#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)
105#else
106void *memp_malloc(memp_t type);
107#endif
108void memp_free(memp_t type, void *mem);
109
110#endif /* MEMP_MEM_MALLOC */
111
112#ifdef __cplusplus
113}
114#endif
115
116#endif /* __LWIP_MEMP_H__ */
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