2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
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.
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
27 * This file is part of the lwIP TCP/IP stack.
29 * Author: Adam Dunkels <adam@sics.se>
32 #ifndef LWIP_HDR_DEBUG_H
33 #define LWIP_HDR_DEBUG_H
35 #include "lwip/arch.h"
38 /** lower two bits indicate debug level
44 #define LWIP_DBG_LEVEL_ALL 0x00
45 #define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL /* compatibility define only */
46 #define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
47 #define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
48 #define LWIP_DBG_LEVEL_SEVERE 0x03
49 #define LWIP_DBG_MASK_LEVEL 0x03
51 /** flag for LWIP_DEBUGF to enable that debug message */
52 #define LWIP_DBG_ON 0x80U
53 /** flag for LWIP_DEBUGF to disable that debug message */
54 #define LWIP_DBG_OFF 0x00U
56 /** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
57 #define LWIP_DBG_TRACE 0x40U
58 /** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
59 #define LWIP_DBG_STATE 0x20U
60 /** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
61 #define LWIP_DBG_FRESH 0x10U
62 /** flag for LWIP_DEBUGF to halt after printing this debug message */
63 #define LWIP_DBG_HALT 0x08U
66 * LWIP_NOASSERT: Disable LWIP_ASSERT checks.
67 * -- To disable assertions define LWIP_NOASSERT in arch/cc.h.
70 #define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \
71 LWIP_PLATFORM_ASSERT(message); } while(0)
72 #ifndef LWIP_PLATFORM_ASSERT
73 #error "If you want to use LWIP_ASSERT, LWIP_PLATFORM_ASSERT(message) needs to be defined in your arch/cc.h"
75 #else /* LWIP_NOASSERT */
76 #define LWIP_ASSERT(message, assertion)
77 #endif /* LWIP_NOASSERT */
79 /** if "expression" isn't true, then print "message" and execute "handler" expression */
82 #define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_ASSERT(message)
83 #elif defined LWIP_DEBUG
84 #define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_DIAG((message))
86 #define LWIP_PLATFORM_ERROR(message)
89 #define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
90 LWIP_PLATFORM_ERROR(message); handler;}} while(0)
91 #endif /* LWIP_ERROR */
94 #ifndef LWIP_PLATFORM_DIAG
95 #error "If you want to use LWIP_DEBUG, LWIP_PLATFORM_DIAG(message) needs to be defined in your arch/cc.h"
97 /** print debug message only if debug message type is enabled...
98 * AND is of correct type AND is at least LWIP_DBG_LEVEL
100 #define LWIP_DEBUGF(debug, message) do { \
102 ((debug) & LWIP_DBG_ON) && \
103 ((debug) & LWIP_DBG_TYPES_ON) && \
104 ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
105 LWIP_PLATFORM_DIAG(message); \
106 if ((debug) & LWIP_DBG_HALT) { \
112 #else /* LWIP_DEBUG */
113 #define LWIP_DEBUGF(debug, message)
114 #endif /* LWIP_DEBUG */
116 #endif /* LWIP_HDR_DEBUG_H */