[164] | 1 | /*
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| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Adam Dunkels <adam@sics.se>
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| 30 | *
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| 31 | */
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| 32 |
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| 33 | #ifndef __LWIP_MEMP_H__
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| 34 | #define __LWIP_MEMP_H__
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| 35 |
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| 36 | #include "lwip/opt.h"
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| 37 |
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| 38 | #ifdef __cplusplus
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| 39 | extern "C" {
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| 40 | #endif
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| 41 |
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| 42 | /* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */
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| 43 | typedef enum {
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| 44 | #define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name,
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| 45 | #include "lwip/memp_std.h"
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| 46 | MEMP_MAX
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| 47 | } memp_t;
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| 48 |
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| 49 | #if MEM_USE_POOLS
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| 50 | /* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */
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| 51 | typedef enum {
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| 52 | /* Get the first (via:
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| 53 | MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/
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| 54 | MEMP_POOL_HELPER_FIRST = ((u8_t)
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| 55 | #define LWIP_MEMPOOL(name,num,size,desc)
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| 56 | #define LWIP_MALLOC_MEMPOOL_START 1
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| 57 | #define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0
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| 58 | #define LWIP_MALLOC_MEMPOOL_END
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| 59 | #include "lwip/memp_std.h"
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| 60 | ) ,
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| 61 | /* Get the last (via:
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| 62 | MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */
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| 63 | MEMP_POOL_HELPER_LAST = ((u8_t)
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| 64 | #define LWIP_MEMPOOL(name,num,size,desc)
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| 65 | #define LWIP_MALLOC_MEMPOOL_START
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| 66 | #define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size *
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| 67 | #define LWIP_MALLOC_MEMPOOL_END 1
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| 68 | #include "lwip/memp_std.h"
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| 69 | )
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| 70 | } memp_pool_helper_t;
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| 71 |
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| 72 | /* The actual start and stop values are here (cast them over)
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| 73 | We use this helper type and these defines so we can avoid using const memp_t values */
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| 74 | #define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)
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| 75 | #define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST)
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| 76 | #endif /* MEM_USE_POOLS */
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| 77 |
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| 78 | #if MEMP_MEM_MALLOC || MEM_USE_POOLS
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| 79 | extern const u16_t memp_sizes[MEMP_MAX];
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| 80 | #endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */
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| 81 |
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| 82 | #if MEMP_MEM_MALLOC
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| 83 |
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| 84 | #include "mem.h"
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| 85 |
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| 86 | #define memp_init()
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| 87 | #define memp_malloc(type) mem_malloc(memp_sizes[type])
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| 88 | #define memp_free(type, mem) mem_free(mem)
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| 89 |
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| 90 | #else /* MEMP_MEM_MALLOC */
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| 91 |
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| 92 | #if MEM_USE_POOLS
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| 93 | /** This structure is used to save the pool one element came from. */
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| 94 | struct memp_malloc_helper
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| 95 | {
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| 96 | memp_t poolnr;
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| 97 | };
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| 98 | #endif /* MEM_USE_POOLS */
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| 99 |
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| 100 | void memp_init(void);
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| 101 |
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| 102 | #if MEMP_OVERFLOW_CHECK
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| 103 | void *memp_malloc_fn(memp_t type, const char* file, const int line);
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| 104 | #define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)
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| 105 | #else
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| 106 | void *memp_malloc(memp_t type);
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| 107 | #endif
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| 108 | void memp_free(memp_t type, void *mem);
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| 109 |
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| 110 | #endif /* MEMP_MEM_MALLOC */
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| 111 |
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| 112 | #ifdef __cplusplus
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| 113 | }
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| 114 | #endif
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| 115 |
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| 116 | #endif /* __LWIP_MEMP_H__ */
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