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Diffstat (limited to 'lwip/src/include/lwip/priv/mem_priv.h')
| -rw-r--r-- | lwip/src/include/lwip/priv/mem_priv.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/lwip/src/include/lwip/priv/mem_priv.h b/lwip/src/include/lwip/priv/mem_priv.h new file mode 100644 index 0000000..8630d75 --- /dev/null +++ b/lwip/src/include/lwip/priv/mem_priv.h @@ -0,0 +1,84 @@ +/** + * @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 */ |