[TCPIP]
[reactos.git] / reactos / lib / drivers / lwip / src / include / lwip / memp.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
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 #endif /* MEM_USE_POOLS */
77
78 #if MEMP_MEM_MALLOC || MEM_USE_POOLS
79 extern 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. */
94 struct memp_malloc_helper
95 {
96 memp_t poolnr;
97 };
98 #endif /* MEM_USE_POOLS */
99
100 void memp_init(void);
101
102 #if MEMP_OVERFLOW_CHECK
103 void *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
106 void *memp_malloc(memp_t type);
107 #endif
108 void 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__ */