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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [lwIP_132/] [src/] [include/] [lwip/] [debug.h] - Rev 606

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/*
 * Copyright (c) 2001-2004 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 "lwip/arch.h"
 
/** lower two bits indicate debug level
 * - 0 all
 * - 1 warning
 * - 2 serious
 * - 3 severe
 */
#define LWIP_DBG_LEVEL_ALL     0x00
#define LWIP_DBG_LEVEL_OFF     LWIP_DBG_LEVEL_ALL /* compatibility define only */
#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
#define LWIP_DBG_LEVEL_SEVERE  0x03
#define LWIP_DBG_MASK_LEVEL    0x03
 
/** flag for LWIP_DEBUGF to enable that debug message */
#define LWIP_DBG_ON            0x80U
/** flag for LWIP_DEBUGF to disable that debug message */
#define LWIP_DBG_OFF           0x00U
 
/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
#define LWIP_DBG_TRACE         0x40U
/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
#define LWIP_DBG_STATE         0x20U
/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
#define LWIP_DBG_FRESH         0x10U
/** flag for LWIP_DEBUGF to halt after printing this debug message */
#define LWIP_DBG_HALT          0x08U
 
#ifndef LWIP_NOASSERT
#define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \
  LWIP_PLATFORM_ASSERT(message); } while(0)
#else  /* LWIP_NOASSERT */
#define LWIP_ASSERT(message, assertion) 
#endif /* LWIP_NOASSERT */
 
/** if "expression" isn't true, then print "message" and execute "handler" expression */
#ifndef LWIP_ERROR
#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
  LWIP_PLATFORM_ASSERT(message); handler;}} while(0)
#endif /* LWIP_ERROR */
 
#ifdef LWIP_DEBUG
/** print debug message only if debug message type is enabled...
 *  AND is of correct type AND is at least LWIP_DBG_LEVEL
 */
#define LWIP_DEBUGF(debug, message) do { \
                               if ( \
                                   ((debug) & LWIP_DBG_ON) && \
                                   ((debug) & LWIP_DBG_TYPES_ON) && \
                                   ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
                                 LWIP_PLATFORM_DIAG(message); \
                                 if ((debug) & LWIP_DBG_HALT) { \
                                   while(1); \
                                 } \
                               } \
                             } while(0)
 
#else  /* LWIP_DEBUG */
#define LWIP_DEBUGF(debug, message) 
#endif /* LWIP_DEBUG */
 
#endif /* __LWIP_DEBUG_H__ */
 
 

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