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log.h
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/*
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* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#pragma once
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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enum
{
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LOG_NONE
,
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LOG_ERROR
,
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LOG_WARNING
,
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LOG_INFO
,
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LOG_DEBUG
,
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LOG_ALL
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};
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#ifndef LOG_LEVEL
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#define LOG_LEVEL LOG_INFO
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#endif
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#ifdef __clang__
/* following pragmas required for clang 3.8.0 */
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#define LOG(level, ...) do { \
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_Pragma("clang diagnostic push") \
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_Pragma("clang diagnostic ignored \"-Wtautological-compare\"") \
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if ((level) <= LOG_LEVEL) log_write((level), __VA_ARGS__); } while (0U) \
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_Pragma("clang diagnostic pop")
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#else
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#define LOG(level, ...) do { \
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if ((level) <= LOG_LEVEL) log_write((level), __VA_ARGS__); } while (0U)
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#endif
/* __clang__ */
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#define LOG_ERROR(...) LOG(LOG_ERROR, __VA_ARGS__)
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#define LOG_WARNING(...) LOG(LOG_WARNING, __VA_ARGS__)
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#define LOG_INFO(...) LOG(LOG_INFO, __VA_ARGS__)
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#define LOG_DEBUG(...) LOG(LOG_DEBUG, __VA_ARGS__)
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#ifdef MODULE_LOG
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#include "log_module.h"
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#else
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#include <stdio.h>
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#define log_write(level, ...) printf(__VA_ARGS__)
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#endif
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#ifdef __cplusplus
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}
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#endif
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LOG_INFO
#define LOG_INFO(...)
for the curious
Definition
log.h:93
LOG_DEBUG
#define LOG_DEBUG(...)
Print a log message, if LOG_LEVEL is defined to be at least LOG_DEBUG
Definition
log.h:108
LOG_NONE
@ LOG_NONE
Lowest log level, will output nothing.
Definition
log.h:52
LOG_ALL
@ LOG_ALL
print everything
Definition
log.h:63
LOG_ERROR
#define LOG_ERROR(...)
log an error
Definition
log.h:91
LOG_WARNING
#define LOG_WARNING(...)
log a warning
Definition
log.h:92
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