1 /* 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 * 29 * Author: Adam Dunkels <adam (at) sics.se> 30 * 31 */ 32 #ifndef __LWIP_DEBUG_H__ 33 #define __LWIP_DEBUG_H__ 34 35 #include "lwip/arch.h" 36 37 /** lower two bits indicate debug level 38 * - 0 all 39 * - 1 warning 40 * - 2 serious 41 * - 3 severe 42 */ 43 #define LWIP_DBG_LEVEL_ALL 0x00 44 #define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL /* compatibility define only */ 45 #define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */ 46 #define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */ 47 #define LWIP_DBG_LEVEL_SEVERE 0x03 48 #define LWIP_DBG_MASK_LEVEL 0x03 49 50 /** flag for LWIP_DEBUGF to enable that debug message */ 51 #define LWIP_DBG_ON 0x80U 52 /** flag for LWIP_DEBUGF to disable that debug message */ 53 #define LWIP_DBG_OFF 0x00U 54 55 /** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */ 56 #define LWIP_DBG_TRACE 0x40U 57 /** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */ 58 #define LWIP_DBG_STATE 0x20U 59 /** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */ 60 #define LWIP_DBG_FRESH 0x10U 61 /** flag for LWIP_DEBUGF to halt after printing this debug message */ 62 #define LWIP_DBG_HALT 0x08U 63 64 #ifndef LWIP_NOASSERT 65 #define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \ 66 LWIP_PLATFORM_ASSERT(message); } while(0) 67 #else /* LWIP_NOASSERT */ 68 #define LWIP_ASSERT(message, assertion) 69 #endif /* LWIP_NOASSERT */ 70 71 /** if "expression" isn't true, then print "message" and execute "handler" expression */ 72 #ifndef LWIP_ERROR 73 #define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \ 74 LWIP_PLATFORM_ASSERT(message); handler;}} while(0) 75 #endif /* LWIP_ERROR */ 76 77 #ifdef LWIP_DEBUG 78 /** print debug message only if debug message type is enabled... 79 * AND is of correct type AND is at least LWIP_DBG_LEVEL 80 */ 81 #define LWIP_DEBUGF(debug, message) do { \ 82 if ( \ 83 ((debug) & LWIP_DBG_ON) && \ 84 ((debug) & LWIP_DBG_TYPES_ON) && \ 85 ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \ 86 LWIP_PLATFORM_DIAG(message); \ 87 if ((debug) & LWIP_DBG_HALT) { \ 88 while(1); \ 89 } \ 90 } \ 91 } while(0) 92 93 #else /* LWIP_DEBUG */ 94 #define LWIP_DEBUGF(debug, message) 95 #endif /* LWIP_DEBUG */ 96 97 #endif /* __LWIP_DEBUG_H__ */ 98 99
