source: azure_iot_hub_f767zi/trunk/asp_baseplatform/lwip/lwip-2.1.2/src/include/lwip/debug.h@ 457

Last change on this file since 457 was 457, checked in by coas-nagasima, 4 years ago

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1/**
2 * @file
3 * Debug messages infrastructure
4 */
5
6/*
7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * This file is part of the lwIP TCP/IP stack.
33 *
34 * Author: Adam Dunkels <adam@sics.se>
35 *
36 */
37#ifndef LWIP_HDR_DEBUG_H
38#define LWIP_HDR_DEBUG_H
39
40#include "lwip/arch.h"
41#include "lwip/opt.h"
42
43/**
44 * @defgroup debugging_levels LWIP_DBG_MIN_LEVEL and LWIP_DBG_TYPES_ON values
45 * @ingroup lwip_opts_debugmsg
46 * @{
47 */
48
49/** @name Debug level (LWIP_DBG_MIN_LEVEL)
50 * @{
51 */
52/** Debug level: ALL messages*/
53#define LWIP_DBG_LEVEL_ALL 0x00
54/** Debug level: Warnings. bad checksums, dropped packets, ... */
55#define LWIP_DBG_LEVEL_WARNING 0x01
56/** Debug level: Serious. memory allocation failures, ... */
57#define LWIP_DBG_LEVEL_SERIOUS 0x02
58/** Debug level: Severe */
59#define LWIP_DBG_LEVEL_SEVERE 0x03
60/**
61 * @}
62 */
63
64#define LWIP_DBG_MASK_LEVEL 0x03
65/* compatibility define only */
66#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL
67
68/** @name Enable/disable debug messages completely (LWIP_DBG_TYPES_ON)
69 * @{
70 */
71/** flag for LWIP_DEBUGF to enable that debug message */
72#define LWIP_DBG_ON 0x80U
73/** flag for LWIP_DEBUGF to disable that debug message */
74#define LWIP_DBG_OFF 0x00U
75/**
76 * @}
77 */
78
79/** @name Debug message types (LWIP_DBG_TYPES_ON)
80 * @{
81 */
82/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
83#define LWIP_DBG_TRACE 0x40U
84/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
85#define LWIP_DBG_STATE 0x20U
86/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
87#define LWIP_DBG_FRESH 0x10U
88/** flag for LWIP_DEBUGF to halt after printing this debug message */
89#define LWIP_DBG_HALT 0x08U
90/**
91 * @}
92 */
93
94/**
95 * @}
96 */
97
98/**
99 * @defgroup lwip_assertions Assertion handling
100 * @ingroup lwip_opts_debug
101 * @{
102 */
103/**
104 * LWIP_NOASSERT: Disable LWIP_ASSERT checks:
105 * To disable assertions define LWIP_NOASSERT in arch/cc.h.
106 */
107#ifdef __DOXYGEN__
108#define LWIP_NOASSERT
109#undef LWIP_NOASSERT
110#endif
111/**
112 * @}
113 */
114
115#ifndef LWIP_NOASSERT
116#define LWIP_ASSERT(message, assertion) do { if (!(assertion)) { \
117 LWIP_PLATFORM_ASSERT(message); }} while(0)
118#else /* LWIP_NOASSERT */
119#define LWIP_ASSERT(message, assertion)
120#endif /* LWIP_NOASSERT */
121
122#ifndef LWIP_ERROR
123#ifndef LWIP_NOASSERT
124#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_ASSERT(message)
125#elif defined LWIP_DEBUG
126#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_DIAG((message))
127#else
128#define LWIP_PLATFORM_ERROR(message)
129#endif
130
131/* if "expression" isn't true, then print "message" and execute "handler" expression */
132#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
133 LWIP_PLATFORM_ERROR(message); handler;}} while(0)
134#endif /* LWIP_ERROR */
135
136/** Enable debug message printing, but only if debug message type is enabled
137 * AND is of correct type AND is at least LWIP_DBG_LEVEL.
138 */
139#ifdef __DOXYGEN__
140#define LWIP_DEBUG
141#undef LWIP_DEBUG
142#endif
143
144#ifdef LWIP_DEBUG
145#define LWIP_DEBUGF(debug, message) do { \
146 if ( \
147 ((debug) & LWIP_DBG_ON) && \
148 ((debug) & LWIP_DBG_TYPES_ON) && \
149 ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
150 LWIP_PLATFORM_DIAG(message); \
151 if ((debug) & LWIP_DBG_HALT) { \
152 while(1); \
153 } \
154 } \
155 } while(0)
156
157#else /* LWIP_DEBUG */
158#define LWIP_DEBUGF(debug, message)
159#endif /* LWIP_DEBUG */
160
161#endif /* LWIP_HDR_DEBUG_H */
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