[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 | #ifndef __LWIP_DEBUG_H__
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| 33 | #define __LWIP_DEBUG_H__
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| 34 |
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| 35 | #include "lwip/arch.h"
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| 36 | #include "lwip/opt.h"
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| 37 |
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| 38 | /** lower two bits indicate debug level
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| 39 | * - 0 all
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| 40 | * - 1 warning
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| 41 | * - 2 serious
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| 42 | * - 3 severe
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| 43 | */
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| 44 | #define LWIP_DBG_LEVEL_ALL 0x00
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| 45 | #define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL /* compatibility define only */
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| 46 | #define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
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| 47 | #define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
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| 48 | #define LWIP_DBG_LEVEL_SEVERE 0x03
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| 49 | #define LWIP_DBG_MASK_LEVEL 0x03
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| 50 |
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| 51 | /** flag for LWIP_DEBUGF to enable that debug message */
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| 52 | #define LWIP_DBG_ON 0x80U
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| 53 | /** flag for LWIP_DEBUGF to disable that debug message */
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| 54 | #define LWIP_DBG_OFF 0x00U
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| 55 |
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| 56 | /** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
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| 57 | #define LWIP_DBG_TRACE 0x40U
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| 58 | /** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
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| 59 | #define LWIP_DBG_STATE 0x20U
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| 60 | /** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
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| 61 | #define LWIP_DBG_FRESH 0x10U
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| 62 | /** flag for LWIP_DEBUGF to halt after printing this debug message */
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| 63 | #define LWIP_DBG_HALT 0x08U
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| 64 |
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| 65 | #ifndef LWIP_NOASSERT
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| 66 | #define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \
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| 67 | LWIP_PLATFORM_ASSERT(message); } while(0)
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| 68 | #else /* LWIP_NOASSERT */
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| 69 | #define LWIP_ASSERT(message, assertion)
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| 70 | #endif /* LWIP_NOASSERT */
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| 71 |
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| 72 | /** if "expression" isn't true, then print "message" and execute "handler" expression */
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| 73 | #ifndef LWIP_ERROR
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| 74 | #define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
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| 75 | LWIP_PLATFORM_ASSERT(message); handler;}} while(0)
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| 76 | #endif /* LWIP_ERROR */
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| 77 |
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| 78 | #ifdef LWIP_DEBUG
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| 79 | /** print debug message only if debug message type is enabled...
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| 80 | * AND is of correct type AND is at least LWIP_DBG_LEVEL
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| 81 | */
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| 82 | #define LWIP_DEBUGF(debug, message) do { \
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| 83 | if ( \
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| 84 | ((debug) & LWIP_DBG_ON) && \
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| 85 | ((debug) & LWIP_DBG_TYPES_ON) && \
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| 86 | ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
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| 87 | LWIP_PLATFORM_DIAG(message); \
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| 88 | if ((debug) & LWIP_DBG_HALT) { \
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| 89 | while(1); \
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| 90 | } \
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| 91 | } \
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| 92 | } while(0)
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| 93 |
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| 94 | #else /* LWIP_DEBUG */
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| 95 | #define LWIP_DEBUGF(debug, message)
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| 96 | #endif /* LWIP_DEBUG */
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| 97 |
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| 98 | #endif /* __LWIP_DEBUG_H__ */
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| 99 |
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