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jeremybenn |
/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __LWIP_DEBUG_H__
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#define __LWIP_DEBUG_H__
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#include "lwip/arch.h"
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/** lower two bits indicate debug level
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* - 0 off
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* - 1 warning
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* - 2 serious
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* - 3 severe
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*/
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#define LWIP_DBG_LEVEL_OFF 0x00
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#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
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#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
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#define LWIP_DBG_LEVEL_SEVERE 0x03
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#define LWIP_DBG_MASK_LEVEL 0x03
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/** flag for LWIP_DEBUGF to enable that debug message */
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#define LWIP_DBG_ON 0x80U
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/** flag for LWIP_DEBUGF to disable that debug message */
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#define LWIP_DBG_OFF 0x00U
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/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
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#define LWIP_DBG_TRACE 0x40U
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/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
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#define LWIP_DBG_STATE 0x20U
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/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
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#define LWIP_DBG_FRESH 0x10U
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/** flag for LWIP_DEBUGF to halt after printing this debug message */
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#define LWIP_DBG_HALT 0x08U
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#ifndef LWIP_NOASSERT
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#define LWIP_ASSERT(x,y) do { if(!(y)) LWIP_PLATFORM_ASSERT(x); } while(0)
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#else /* LWIP_NOASSERT */
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#define LWIP_ASSERT(x,y)
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#endif /* LWIP_NOASSERT */
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/** print "m" message only if "e" is true, and execute "h" expression */
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#ifndef LWIP_ERROR
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#define LWIP_ERROR(m,e,h) do { if (!(e)) { LWIP_PLATFORM_ASSERT(m); h;}} while(0)
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#endif /* LWIP_ERROR */
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#ifdef LWIP_DEBUG
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/** print debug message only if debug message type is enabled...
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* AND is of correct type AND is at least LWIP_DBG_LEVEL
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*/
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#define LWIP_DEBUGF(debug,x) do { \
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if ( \
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((debug) & LWIP_DBG_ON) && \
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((debug) & LWIP_DBG_TYPES_ON) && \
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((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
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LWIP_PLATFORM_DIAG(x); \
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if ((debug) & LWIP_DBG_HALT) { \
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while(1); \
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} \
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} \
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} while(0)
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#else /* LWIP_DEBUG */
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#define LWIP_DEBUGF(debug,x)
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#endif /* LWIP_DEBUG */
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#endif /* __LWIP_DEBUG_H__ */
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