aboutsummaryrefslogtreecommitdiffstats
path: root/minzip/Log.h
blob: 36e62f594a5f97f5abe187325db7bffc1945434b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
//
// Copyright 2005 The Android Open Source Project
//
// C/C++ logging functions.  See the logging documentation for API details.
//
// We'd like these to be available from C code (in case we import some from
// somewhere), so this has a C interface.
//
// The output will be correct when the log file is shared between multiple
// threads and/or multiple processes so long as the operating system
// supports O_APPEND.  These calls have mutex-protected data structures
// and so are NOT reentrant.  Do not use LOG in a signal handler.
//
#ifndef _MINZIP_LOG_H
#define _MINZIP_LOG_H

#include <stdio.h>

// ---------------------------------------------------------------------

/*
 * Normally we strip LOGV (VERBOSE messages) from release builds.
 * You can modify this (for example with "#define LOG_NDEBUG 0"
 * at the top of your source file) to change that behavior.
 */
#ifndef LOG_NDEBUG
#ifdef NDEBUG
#define LOG_NDEBUG 1
#else
#define LOG_NDEBUG 0
#endif
#endif

/*
 * This is the local tag used for the following simplified
 * logging macros.  You can change this preprocessor definition
 * before using the other macros to change the tag.
 */
#ifndef LOG_TAG
#define LOG_TAG NULL
#endif

// ---------------------------------------------------------------------

/*
 * Simplified macro to send a verbose log message using the current LOG_TAG.
 */
#ifndef LOGV
#if LOG_NDEBUG
#define LOGV(...)   ((void)0)
#else
#define LOGV(...) ((void)LOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__))
#endif
#endif

#define CONDITION(cond)     (__builtin_expect((cond)!=0, 0))

#ifndef LOGV_IF
#if LOG_NDEBUG
#define LOGV_IF(cond, ...)   ((void)0)
#else
#define LOGV_IF(cond, ...) \
    ( (CONDITION(cond)) \
    ? ((void)LOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
    : (void)0 )
#endif
#endif

#define LOGVV LOGV
#define LOGVV_IF LOGV_IF

/*
 * Simplified macro to send a debug log message using the current LOG_TAG.
 */
#ifndef LOGD
#define LOGD(...) ((void)LOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__))
#endif

#ifndef LOGD_IF
#define LOGD_IF(cond, ...) \
    ( (CONDITION(cond)) \
    ? ((void)LOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
    : (void)0 )
#endif

/*
 * Simplified macro to send an info log message using the current LOG_TAG.
 */
#ifndef LOGI
#define LOGI(...) ((void)LOG(LOG_INFO, LOG_TAG, __VA_ARGS__))
#endif

#ifndef LOGI_IF
#define LOGI_IF(cond, ...) \
    ( (CONDITION(cond)) \
    ? ((void)LOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
    : (void)0 )
#endif

/*
 * Simplified macro to send a warning log message using the current LOG_TAG.
 */
#ifndef LOGW
#define LOGW(...) ((void)LOG(LOG_WARN, LOG_TAG, __VA_ARGS__))
#endif

#ifndef LOGW_IF
#define LOGW_IF(cond, ...) \
    ( (CONDITION(cond)) \
    ? ((void)LOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
    : (void)0 )
#endif

/*
 * Simplified macro to send an error log message using the current LOG_TAG.
 */
#ifndef LOGE
#define LOGE(...) ((void)LOG(LOG_ERROR, LOG_TAG, __VA_ARGS__))
#endif

#ifndef LOGE_IF
#define LOGE_IF(cond, ...) \
    ( (CONDITION(cond)) \
    ? ((void)LOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
    : (void)0 )
#endif


/*
 * Conditional based on whether the current LOG_TAG is enabled at
 * verbose priority.
 */
#ifndef IF_LOGV
#if LOG_NDEBUG
#define IF_LOGV() if (false)
#else
#define IF_LOGV() IF_LOG(LOG_VERBOSE, LOG_TAG)
#endif
#endif

/*
 * Conditional based on whether the current LOG_TAG is enabled at
 * debug priority.
 */
#ifndef IF_LOGD
#define IF_LOGD() IF_LOG(LOG_DEBUG, LOG_TAG)
#endif

/*
 * Conditional based on whether the current LOG_TAG is enabled at
 * info priority.
 */
#ifndef IF_LOGI
#define IF_LOGI() IF_LOG(LOG_INFO, LOG_TAG)
#endif

/*
 * Conditional based on whether the current LOG_TAG is enabled at
 * warn priority.
 */
#ifndef IF_LOGW
#define IF_LOGW() IF_LOG(LOG_WARN, LOG_TAG)
#endif

/*
 * Conditional based on whether the current LOG_TAG is enabled at
 * error priority.
 */
#ifndef IF_LOGE
#define IF_LOGE() IF_LOG(LOG_ERROR, LOG_TAG)
#endif

// ---------------------------------------------------------------------

/*
 * Basic log message macro.
 *
 * Example:
 *  LOG(LOG_WARN, NULL, "Failed with error %d", errno);
 *
 * The second argument may be NULL or "" to indicate the "global" tag.
 *
 * Non-gcc probably won't have __FUNCTION__.  It's not vital.  gcc also
 * offers __PRETTY_FUNCTION__, which is rather more than we need.
 */
#ifndef LOG
#define LOG(priority, tag, ...) \
    LOG_PRI(ANDROID_##priority, tag, __VA_ARGS__)
#endif

/*
 * Log macro that allows you to specify a number for the priority.
 */
#ifndef LOG_PRI
#define LOG_PRI(priority, tag, ...) \
    printf(tag ": " __VA_ARGS__)
#endif

/*
 * Conditional given a desired logging priority and tag.
 */
#ifndef IF_LOG
#define IF_LOG(priority, tag) \
    if (1)
#endif

#endif // _MINZIP_LOG_H