/* * Copyright (c) 2001-2003 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: Adam Dunkels <adam@sics.se> * */#ifndef __LWIP_DEBUG_H__#define __LWIP_DEBUG_H__#include "arch/cc.h"/** lower two bits indicate debug level * - 0 off * - 1 warning * - 2 serious * - 3 severe */#define DBG_LEVEL_OFF     0#define DBG_LEVEL_WARNING 1	/* bad checksums, dropped packets, ... */#define DBG_LEVEL_SERIOUS 2	/* memory allocation failures, ... */#define DBG_LEVEL_SEVERE  3	/* unrecoverable errors */ #define DBG_MASK_LEVEL    3/** flag for DEBUGF to enable that debug message */#define DBG_ON  0x80U/** flag for DEBUGF to disable that debug message */#define DBG_OFF 0x00U/** flag for DEBUGF indicating a tracing message (to follow program flow) */#define DBG_TRACE   0x40U/** flag for DEBUGF indicating a state debug message (to follow module states) */#define DBG_STATE   0x20U/** flag for DEBUGF indicating newly added code, not thoroughly tested yet */#define DBG_FRESH   0x10U/** flag for DEBUGF to halt after printing this debug message */#define DBG_HALT    0x08U#ifdef LWIP_DEBUG#  define LWIP_ASSERT(x,y) do { if(!(y)) LWIP_PLATFORM_ASSERT(x); } while(0)/** print debug message only if debug message type is enabled... *  AND is of correct type AND is at least DBG_LEVEL */#  define DEBUGF(debug,x) do { if (((debug) & DBG_ON) && ((debug) & DBG_TYPES_ON) && (((debug) & DBG_MASK_LEVEL) >= DBG_MIN_LEVEL)) { LWIP_PLATFORM_DIAG(x); if ((debug) & DBG_HALT) while(1); } } while(0)#  define LWIP_ERROR(x)	 do { LWIP_PLATFORM_DIAG(x); } while(0)	#else /* LWIP_DEBUG */#  define LWIP_ASSERT(x,y) #  define DEBUGF(debug,x) #  define LWIP_ERROR(x)	#endif /* LWIP_DEBUG */#endif /* __LWIP_DEBUG_H__ */