| /** |
| * @file |
| * lwIP internal memory implementations (do not use in application code) |
| */ |
| |
| /* |
| * Copyright (c) 2018 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Simon Goldschmidt <goldsimon@gmx.de> |
| * |
| */ |
| |
| #ifndef LWIP_HDR_MEM_PRIV_H |
| #define LWIP_HDR_MEM_PRIV_H |
| |
| #include "lwip/opt.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include "lwip/mem.h" |
| |
| #if MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK |
| /* if MEM_OVERFLOW_CHECK or MEMP_OVERFLOW_CHECK is turned on, we reserve some |
| * bytes at the beginning and at the end of each element, initialize them as |
| * 0xcd and check them later. |
| * If MEM(P)_OVERFLOW_CHECK is >= 2, on every call to mem(p)_malloc or mem(p)_free, |
| * every single element in each pool/heap is checked! |
| * This is VERY SLOW but also very helpful. |
| * MEM_SANITY_REGION_BEFORE and MEM_SANITY_REGION_AFTER can be overridden in |
| * lwipopts.h to change the amount reserved for checking. */ |
| #ifndef MEM_SANITY_REGION_BEFORE |
| #define MEM_SANITY_REGION_BEFORE 16 |
| #endif /* MEM_SANITY_REGION_BEFORE*/ |
| #if MEM_SANITY_REGION_BEFORE > 0 |
| #define MEM_SANITY_REGION_BEFORE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_BEFORE) |
| #else |
| #define MEM_SANITY_REGION_BEFORE_ALIGNED 0 |
| #endif /* MEM_SANITY_REGION_BEFORE*/ |
| #ifndef MEM_SANITY_REGION_AFTER |
| #define MEM_SANITY_REGION_AFTER 16 |
| #endif /* MEM_SANITY_REGION_AFTER*/ |
| #if MEM_SANITY_REGION_AFTER > 0 |
| #define MEM_SANITY_REGION_AFTER_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_AFTER) |
| #else |
| #define MEM_SANITY_REGION_AFTER_ALIGNED 0 |
| #endif /* MEM_SANITY_REGION_AFTER*/ |
| |
| void mem_overflow_init_raw(void *p, size_t size); |
| void mem_overflow_check_raw(void *p, size_t size, const char *descr1, const char *descr2); |
| |
| #endif /* MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* LWIP_HDR_MEMP_PRIV_H */ |